Oleanolic acid-pyrimidine conjugate as well as preparation method and application thereof

The invention discloses an oleanolic acid-pyrimidine conjugate, a preparation method thereof, and application of the oleanolic acid-pyrimidine conjugate in the field of pharmacy. The applicant discovers that the oleanolic acid-pyrimidine conjugate has much higher anti-tumor activity than oleanolic acid, a matrix of the oleanolic acid-pyrimidine conjugate, and a lead compound is provided for developing new anti-tumor drugs. The conjugate has a structure of the general formula (III) shown in the specification.

Unloading forming tool

The invention relates to a stamping mould, in particular to a reverse stamping type unloading forming tool. The unloading forming tool comprises an unloading plate arranged on an upper mould and serving as the first unloading plate, an unloading plate arranged on a lower mould and serving as the second unloading plate, an ejection rod, a rotary semicircle and a punch, wherein the ejection rod, the rotary semicircle and the punch are sequentially connected, the upper end of the ejection rod is fixed to the upper mould, the other end of the ejection rod penetrates to the lower portion of the lower mould, the rotary semicircle is installed on a lower mould frame, one end of the upper surface of the rotary semicircle abuts against the lower end of the ejection rod, the other end of the upper surface of the rotary semicircle abuts against the lower end of the punch, the punch penetrates through the lower mould, the first unloading plate and the second unloading plate, the upper end of the punch ...

Clamp for machining screw thread outside motorcycle thin-wall sleeve

The invention discloses a clamp for machining a screw thread outside a motorcycle thin-wall sleeve. The clamp for machining the screw thread outside the motorcycle thin-wall sleeve comprises a rotary shaft, a top plate, a base plate and double-end studs. The rotary shaft is in thread connection with the top plate. The double-end studs are arranged between the top plate and the base plate. Screw-in ends of the double-end studs are in thread connection with the base plate. Fastening ends of the double-end studs are connected with the top plate. Tightening rollers are arranged on the double-end studs. Positioning sleeves are arranged between the tightening rollers and the top plate, and the double-end studs pass through the positioning sleeves. Positioning nuts are arranged on the double-end studs, and the positioning nuts are located between the tightening rollers and the base plate. The fastening ends of the double-end studs are provided with locking nuts. A screw thread part, a smooth part ...

Assembly workbench indexing mechanism

The invention discloses an assembly workbench indexing mechanism. The assembly workbench indexing mechanism comprises a machine base and a workbench, and further comprises an air cylinder, a main shaft, a rack, a gear, a ratchet wheel, pawls and a pawl column; the lower end of the main shaft is connected to the machine base in a rotatable mode, the gear and the ratchet wheel are connected to the main shaft, a piston rod of the air cylinder is connected with the rack, the rack is meshed with the gear, the workbench is connected to the upper end of the main shaft, at least two evenly-distributed pawls are arranged on the ratchet wheel in the circumferential direction and are connected to the workbench through the pawl column, the pawls are connected with the pawl column in a rotatable mode, a tension spring is arranged between one end of each pawl and the machine base, and the other end of each pawl is tightly pressed to the surface of the ratchet wheel. By means of the assembly workbench ...

Method for preparing biomass energy source by anaerobic fermentation

The present invention is anaerobic fermentation process for preparing biomass energy source, and belongs to the field of microbial fermentation technology in bioengineering. The present invention adopts liquid culture medium or semi-liquid culture medium, especially of hogwash as catering business. The anaerobic fermentation process includes: setting hogwash as semi-liquid culture medium inside a vacuum fermentation container, and regulating pH value of the culture medium with 30 % concentration NaOH solution to 7-7.5; adding mixed fermenting bacteria to form a sealed anaerobic fermentation system; setting the container inside incubator at 35 deg.c and constant temperature fermenting for 1-5 days; and collecting the generated marsh gas in a gas bag. The process is simple and can producing biomass energy source.

Parallel-axis drill bit

The invention discloses a parallel-axis drill bit. The parallel-axis drill bit is used for improving the precision of the machining distance between two adjacent holes, a main shaft is connected with a power mechanism in a transmission mode, a main shaft sleeve is arranged on the periphery of the main shaft, a drive gear is fixed to the main shaft, a first idle wheel is meshed with the left side of the drive gear and connected to a first idle wheel shaft in a pivoted mode, a first driven gear is meshed with the left side of the first idle wheel, and fixed to a first output shaft, and a first drill bit body is arranged at the end of the first output shaft. A second idle wheel is meshed with the right side of the drive gear and connected to a second idle wheel shaft in a pivoted mode, a second driven gear is meshed with the right side of the second idle wheel and fixed to a second output shaft, and a second drill bit body is arranged at the end of the second output shaft. The drive gear, ...

Oleanolic acid-pyrimidine conjugate as well as preparation method and application thereof

The invention discloses an oleanolic acid-pyrimidine conjugate, a preparation method thereof, and application of the oleanolic acid-pyrimidine conjugate in the field of pharmacy. The applicant discovers that the oleanolic acid-pyrimidine conjugate has much higher anti-tumor activity than oleanolic acid, a matrix of the oleanolic acid-pyrimidine conjugate, and a lead compound is provided for developing new anti-tumor drugs. The conjugate has a structure of the general formula (II) shown in the specification.

Fine turning clamp used for automobile thin-wall part

The invention discloses a fine turning clamp used for an automobile thin-wall part. The fine turning clamp comprises a hub base, and further comprises an elastic chuck and a screw. The left side of the hub base is detachably connected with a spindle of a machine tool, a spoke is arranged on the right side of the hub base, a fixed sleeve is arranged in the center of the hub base, the fixed sleeve and the spoke are integrated, and the elastic chuck comprises a sliding sleeve and fins, wherein the sliding sleeve and the fins are connected into the fixed sleeve in a siding mode. The multiple fins are circumferentially and evenly distributed on the outer edge of the sliding sleeve, the fins and the sliding sleeve are integrated and form a disc-shaped structure, the fins are arranged on the sliding sleeve in an inclined mode, an expansion joint is formed between every two adjacent fins, the screw penetrates through an inner hole of the sliding sleeve and is connected with the fixed sleeve through ...

Small-shaft detaching tool

The invention discloses a small-shaft detaching tool. The small-shaft detaching tool comprises a lock nut, a heavy punch, a baffle, a mandrel and a chuck. The lock nut and the mandrel are in threaded connection. The baffle is located at the upper end of the mandrel, the mandrel is sleeved with the heavy punch, the mandrel sequentially comprises a threaded part and a smooth part from top to bottom, the external diameter of the threaded part is smaller than that of the smooth part, and an annular clamping groove is formed in the low end of the smooth part. A first through hole and a second through hole are formed in the chuck, the hole diameter of the first through hole is larger than the diameter of the smooth part of the mandrel, a first threaded hole is formed in the lower portion of the chuck, and a first fastening screw is arranged in the first threaded hole. A rectangular through hole is formed in the upper portion of the chuck and communicated with the first through hole, a clamping ...

Oxonantenine rare-earth complex as well as synthesis method and application thereof

The invention discloses an oxonantenine rare-earth complex as well as a synthesis method and an application thereof. The rare-earth complex is obtained from a coordination reaction between oxonantenine which serves as a ligand and rare-earth metal salt in a polar solvent, and specifically, the rare-earth complex can be synthesized by virtue of a solution method or a solvothermal method. By investigating the inhibitory effect of the complex on the growth of multiple tumor cell strains, the applicant discovers that the rare-earth complex shows better antitumor activity in vitro than that of cis-platinum as a classical metal-based anti-cancer drug; meanwhile, some rare-earth complex also shows better antitumor activity in vitro than that of an oxonantenine ligand; and therefore, the rare-earth complex has a potential medicinal value, and is expected to be used for preparing various anti-cancer drugs. The structure of the rare-earth complex is as shown in formula I (as shown in Specification ...

Manganese and zinc metal complexes taking alocasia amazonica alkali as ligand as well as synthesis method and application of manganese and zinc metal complexes

The invention discloses two new manganese and zinc metal complexes taking alocasia amazonica alkali as a ligand as well as a synthesis method and an application of the manganese and zinc metal complex. The manganese and zinc metal complexes are obtained by dissolving manganese perchlorate or zinc perchlorate and alocasia amazonica alkali in a polar solvent, and carrying out a complexing reaction; the manganese and zinc metal complexes specifically can be synthesised through a solution method or a solvothermal method. The applicant finds that the two new manganese and zinc metal complexes show up superior in-vitro anti-tumour activities compared with the alocasia amazonica alkali ligand by inspecting the proliferation inhibition activities of the two new manganese and zinc metal complexes on human tumour cell strains of NCl-H460, HepG-2, DLD-1, MGC80-3 and the like, and the toxicities of the two new manganese and zinc metal complexes on human normal hepatic cells HL-7702, wherein the zinc ...

Built-up hole punching device

The invention relates to a multistage workstation forming die, in particular to a built-up hole punching device which comprises an upper die, a lower die, a hydraulic rod, an adjusting lever and a punch. The upper die is a convex die, the lower die is a concave die and is mounted on a lower die frame, the upper die is mounted on an upper die frame, the hydraulic rod, the adjusting lever and the punch are connected sequentially, the hydraulic rod is connected with a power arm of the adjusting lever, the punch is connected with a resistance arm of the adjusting lever, a groove is matched with a preset built-up hole in shape is formed in the convex die, a through hole for the hydraulic rod to penetrate out is formed in the upper die, the adjusting lever is arranged on the lower die frame, the punch penetrates the lower die and goes into the groove, and the top end of the punch and the groove are matched in shape. The defect that burrs are positioned in the direction of the convex die in the ...

Corrector for large-diameter steel tube

The invention discloses a corrector for a large-diameter steel tube. The corrector for the large-diameter steel tube comprises a first screw, a second screw, a turning nut and two adsorption devices. The first screw and the second screw are all in threaded connection with the turning nut. The adsorption devices comprise adsorption seats and first elastic blocks. Grooves are formed in the adsorption seats. Permanent magnets are arranged in the grooves. The first elastic blocks are detachably connected with the adsorption seats. Adsorption through-holes are formed in the first elastic blocks. Sliding grooves are formed in the adsorption seats. The top end of the first screw and the top end of the second screw are provided with sliding blocks matched with the sliding grooves of the adsorption seats. The corrector for the large-diameter steel tube overcomes the defects in the prior art that the process efficiency is low and the safety coefficient is low during the large-diameter steel tube ...

Tool used for machining automobile belt wheel

The invention discloses a tool used for machining an automobile belt wheel. The tool comprises a central spindle, a pull rod, expanding blocks and springs. The central spindle comprises a fixing base and a cylindrical section in the axial direction in sequence, the fixing base and the cylindrical section are integrated, an inner hole is formed in the center of the central spindle, the pull rod is in clearance fit with the inner hole of the central spindle, and four sliding grooves are formed in the circumferential direction of the cylindrical section and used for sliding of the expanding blocks. Four inclined surfaces are arranged in the circumferential direction of the right end of the pull rod, the inner sides of the expanding blocks are matched with the inclined surfaces of the pull rod, grooves are formed in the left ends and the right ends of the outer sides of the expanding blocks and used for clamping the springs, and the springs are clamped inside the grooves to form an annular ...

Method for detecting bombyx mori microparticle virus

The invention discloses a method for detecting bombyx mori microparticle viruses, and relates to the technical field of detection, three experimental groups are experimented through a variable control method, the final number of microparticle worms is detected by controlling PH values and ion concentrations in different environments, the influence of different PH values and ion concentrations on the experiment accuracy is verified, and meanwhile, the detection accuracy is improved. After the sample is purified, the impurity content is obviously reduced, the appearance characteristics of the microparticle worms are extracted and distinguished by utilizing a microscope, the microparticle worms can be counted in a short time through color marking, and the efficiency is relatively high.

Conveying belt tensioning adjusting device

The invention discloses a conveying belt tensioning adjusting device which comprises a tensioning wheel. A mounting seat, a screw rod, first connecting rods, a second connecting rod, a tensioning arm and a nut are further arranged, the two ends of the screw rod are rotatably connected with the mounting seat, the nut is in threaded fit with the screw rod, the two ends of the tensioning arm are hinged to the first connecting rods respectively, the other ends of the two first connecting rods are hinged to the mounting seat, a parallelogram is formed by the tensioning arm, the two first connecting rods and the mounting seat, one end of the second connecting rod is hinged to the nut, and the other end of the second connecting rod is hinged to one end of the tensioning arm. The tensioning wheel is rotatably connected with the middle of the tensioning arm. The conveying belt tensioning adjusting device can adjust the tensioning degree of a conveying belt, and therefore the conveying belt is prevented ...

Self-locking grabbing mechanism

The invention belongs to a grabbing device, in particular to a self-locking grabbing mechanism. The self-locking grabbing mechanism comprises a stand, the stand comprises a paw and a movement part, the paw is composed of two paw rods and paw handles, each paw rod is provided with a horizontal short side and a vertical long side, the paw handles are fixed at the inner sides of the lower ends of the two long sides, and one ends of the two short sides are hinged to the stand; the movement part comprises a left connecting rod, a right connecting rod and a pull rod, one ends of the left connecting rod and right connecting rod are hinged to each other and coaxial with the pull rod, and the other ends are hinged to the upper end points of the long sides of the paw rods. The self-locking grabbing mechanism is simple in structure and capable of performing self-locking when the connecting rods are located at a horizontal state so as to prevent a pipe fitting sliding in carrying.

Special pipe joint locating fixture

The invention discloses a special pipe joint locating fixture for quickly and stably locating a workpiece. A vertical through hole is formed in a jig body, a spindle is arranged in the through hole in a sliding connecting mode, the upper end of the spindle is detachably connected with a horizontally extending clamping claw through a pin, a workbench used for supporting the bottom of the workpiece is arranged below the clamping part of the clamping claw, a protruded bolt head is arranged on the workbench for locating a hole in the workpiece, a nick is formed in the periphery of the middle of the spindle, the jig body is rotationally connected with a horizontal drive shaft, the drive shaft is connected with a rotary cylinder, the end of the drive shaft is connected with a cam and located in the nick, the cam rotates to push the lower surface of the nick, and a spring for driving the jig body to loosen the workpiece is connected between the lower section of the spindle and the jig body. The ...

Metal sheet arranging mechanism

The invention discloses a metal sheet arranging mechanism which comprises a base, a motor, a cam shaft, a cam, a first swing rod, a second swing rod, a tension spring, a connecting rod and a bulldozing plate. The cam is connected onto the cam shaft, the cam shaft is driven by the motor, one end of the first swing rod is connected onto the base, the other end of the first swing rod is connected with one end of the connecting rod, the other end of the connecting rod is connected with one end of the second swing rod, the other end of the second swing rod is connected with the bulldozing plate, the middle of the second swing rod is hinged onto the base, the second swing rod is positioned on one side of the first swing rod, the cam is positioned on the other side of the first swing rod and can push the first swing rod to swing, one end of the tension spring is connected with the base, and the other end of the tension spring is connected onto the first swing rod. The metal sheet arranging mechanism ...

Wastewater treatment recycling device

The utility model provides a wastewater treatment and cyclic utilization device. Wherein a scraping plate is mounted on the inner wall of the container main body, the scraping plate is connected withthe container main body through a sliding mechanism, a telescopic mechanism is arranged at the lower end of the scraping plate, the upper end of the scraping plate is connected with an activated carbon filter element through a fixing mechanism, filter holes are uniformly formed in the middle of the scraping plate, and the filter holes are located under the activated carbon filter element. According to the wastewater treatment and cyclic utilization device provided by the utility model, the activated carbon filter element in the container main body can be conveniently replaced; the problem thatafter being used for a long time, the activated carbon filter element needs to extend into the container body and can be detached to be replaced, which is very troublesome is solved, the convenienceof replacing ...

Ruthenium (II) complex using chiral compound as ligand as well as synthesis method and application of Ruthenium (II) complex

The invention discloses a ruthenium (II) complex using chiral 4-(2,3-dihydroxypropyl)-formamide-6-azabenzanthrone as a ligand as well as a synthesis method and an application of the Ruthenium (II) complex. The synthesis method of the complex comprises the following steps: dissolving (+)-4-(2,3-dihydroxypropyl)-formamide-6-azabenzanthrone or (-)-4-(2,3-dihydroxypropyl)-formamide-6-azabenzanthrone and dichloro-tetra(dimethyl sulfoxide) ruthenium (II) into a polar solvent, then mixing, and performing complexing reaction to obtain the complex. The applicant discovers that the obtained complex has significant in-vitro anti-tumor activity, the in-vitro anti-tumor activity of tested tumor strains is universally higher than that of the original chiral ligand, and the complex has good potential medicinal value and is expected to be applied to preparation of various anti-tumor medicaments. The structural formula of the complex is respectively shown in formula (I) and formula (II) in the specification ...

Continuous automobile paint discharging and stirring device

The invention discloses a continuous automobile paint discharging and stirring device which comprises a discharging box, a motor, a hollow transmission shaft, a worm, a worm wheel, hollow central pipes, stirring rods and blades, wherein the central pipes stretch into the discharging box from the bottom of the discharging box; a liquid outlet is formed in the position, which is positioned in the discharging box, of the central pipe; the liquid outlet is communicated with the hollow part; the transmission shaft is arranged on the central pipe in a sleeving manner, and the upper end of the transmission shaft stretches into the discharging box; packing seals are arranged between the central pipe and the discharging box and between the central pipes; the worm wheel is connected to the lower end of the transmission shaft; multiple stirring rods are arranged on the peripheral surface of the transmission shaft; multiple blades are arranged on each stirring rod; the output end of the motor is connected ...

Pipe fitting inside expansion clamping device

The invention discloses a pipe fitting inside expansion clamping device which comprises a positioning cylinder. The side wall of the positioning cylinder is provided with two sets of through holes, the centers of each set of the through holes are located on the same circumference, the circle center of the circumference is located on the axis line of the positioning cylinder, positioning balls are arranged in the through holes and in clearance fit with the through holes, and the diameter of the positioning balls is larger than the depth of the through holes; two conical tables are arranged in the positioning cylinder and face the same direction, both the big diameter ends of the two conical tables make contact with the inner wall of the positioning cylinder, the two conical tables abut against the positioning balls in the two sets of through holes respectively, a connection rod is arranged between the two conical tables, the small diameter ends, located on the outer sides of the conical ...

Special-shaped plate locating and clamping die

The invention provides a special-shaped plate locating and clamping die which comprises a base. A left supporting table and a right supporting table are fixed on the base. A protruding part of a special-shaped plate is inserted into an installing hole in the left supporting table and constrained to a certain extent. A locating pin and a stud are used for locating and fixing the special-shaped plate in the horizontal direction, and therefore the requirements for machining and locating are met. A locking nut on a fixing rod is screwed to extrude a pressing plate downwards so that the pressing plate can rotate around a hinge point on the left supporting table to extrude a pressing block on the pressing plate downwards. As the pressing block is hinged to the pressing plate, when the pressing plate presses the pressing block downwards, the pressing block can be adjusted and rotated according to the outline of the special-shaped plate, so that the pressing block and the special-shaped plate make ...

Flanging stamping die

The invention relates to a flanging stamping die, in particular to a stamping die with a flanging adjustment function. The flanging stamping die comprises an upper die support, an upper die, a lower die support, a lower die and discharging plates. The discharging plates are arranged on profiles of the upper die and the lower die. A flanging male die is embedded on the first discharging plate, and a flanging female die positioned under the flanging male die is embedded on the second discharging plate. A lifting die is arranged on the outer sides of the flanging female die and the flanging male die and is fixedly arranged on a slider which is slidably connected into the second discharging plate. The lifting die is abutted against the flanging female die. A first adjusting screw rod is arranged between the upper die support and the lower die support. An adjusting lever is arranged in the lower die support. One end of the adjusting lever is abutted against the slider, and the other end of the ...

Fine-adjustment coining mechanism

The invention relates to a stamping mold, in particular to an inverse-stamping type fine-adjustment coining mechanism. The fine-adjustment coining mechanism comprises an upper mold frame, an upper mold body, a lower mold frame, a lower mold body and a discharging plate arranged on the molded surface of the upper mold body, and further comprises a jacking and pressing rod, a rotating semicircular part and a flanging male mold, wherein the jacking and pressing rod, the rotating semicircular part and the flanging male mold are sequentially connected. The upper end of the jacking and pressing rod is fixed into the upper mold body, the other end of the jacking and pressing rod extends to the portion below the lower mold body, the rotating semicircular part is installed on the lower mold frame, one end of the upper surface of the rotating semicircular part abuts against the lower end of the jacking and pressing rod, the other end of the upper surface of the rotating semicircular part abuts against ...

Fixture for machining of automotive connecting receptacles

The invention discloses a fixture for machining of automotive connecting receptacles. The fixture comprises a base, a mandrel, a pull bar, a fixing seat, a positioning block and an open presser plate. The center of the base is provided with an inner hole; the middle of the mandrel is fixed in the inner hole of the base; the center of the mandrel is provided with another inner hole; the pull bar is slidably connected inside the inner hole of the mandrel; the right end of the mandrel extends out of the inner hole of the base and peripherally connected to the fixing seat and the positioning block in order; the left end of the fixing seat is provided with a connecting boss embedded in the right end of the mandrel; the right end of the fixing seat is provided with a positioning boss; a gap is provided between the positioning boss and the inner hole of the positioning block; the right end of the pull bar passes through the fixing seat, extends out of the positioning block and is provided with ...

Rare earth metal complexes using orbifloxacin as ligand, method for synthesizing same and application thereof

The invention discloses rare earth metal complexes using orbifloxacin as a ligand, a method for synthesizing the same and application thereof. In the tests of the inhibiting effect of the complexes on bacteria such as salmonella pullorum, swine streptococcosis and bovine streptococcus uberis, the results show that the complexes have quite high bacteriostatic activity, wherein all of Er(III), Sm(III) and Eu(III) complexes of the orbifloxacin have certain bacteriostatic activity on the swine streptococcosis which cannot be inhibited by orbifloxacin and doxycycline. Mouse acute toxicity tests show that the complexes have low in-vivo toxicity to mice and are highly tolerable to mice. The toxicity of various complexes meets the acute oral toxicity ungraded standards of European Community and the PRC food security assessment grade-two (actually non-toxic) standard, wherein the neodymium complex of the orbifloxacin has the lowest toxicity.

Hand-operated spiral tensioner

The invention relates to a hand-operated spiral tensioner. By rotating a hand wheel, a compression screw can be rotated to move along a threaded sleeve; the end of the compression screw is abutted to a plug on a pulley; the pulley is moved accordingly. The pulley needs to function with other parts. A support is in a rod structure and used for supporting the parts; thus, the hand-operated spiral tensioner is simple in structure, convenient to mount and demount and convenient to use. The hand-operated spiral tensioner is reliable in structure, functions in positioning and tensioning through a screw thread of the compression screw, is safe and reliable and self-lockable and is free of safety accidents.

Estradiol-4-aminomethyl pyridine conjugate as well as synthetic method and application thereof

The invention discloses an estradiol-4-aminomethyl pyridine conjugate, namely 3-hydroxyl-17beta-[6-(4-pyridine-methylamino)-hexyl-oxygen]-1,3,5(10)-triene-estra, as well as a synthetic method and application thereof. Through experiments, the applicant discovers that the estradiol-4-aminomethyl pyridine conjugate can excellently inhibit proliferative activity of cell tumor strains such as HepG-2, BGC-823, A549, MCF-7 and PC-3. The structural formula of the estradiol-4-aminomethyl pyridine conjugate is shown in the specification.

Slope coaxial clamping mechanism

The invention discloses a slope coaxial clamping mechanism. A gear is driven by a power device to rotate, a rack is driven by the gear to move, the rack and a loop bar are fixed, a rocker arm hinged to the loop bar is driven to swing, a press rod is coaxially connected to a rotating shaft of the rocker arm through a key, the press rod rotates under the effect of rotation of the rocker arm, and an inclined press plate fixed to the end of the press rod is driven by the press rod to get close to a workpiece and clamp the workpiece. As the inclined press plate rotates to press the workpiece, and clamping is carried out under the slope effect through workpiece contact, the workpiece can be pressed through a slope, the friction force of the slope can act on the workpiece, and the dual-pressing effect can be achieved.

Transportation accelerating mechanism of automatic assembling machine

The invention discloses a transportation accelerating mechanism of an automatic assembling machine. The transportation accelerating mechanism comprises a machine base, a grooved cam, a driving shaft, a worm, a worm gear, a compression spring and an output shaft. Two ends of the driving shaft are connected onto the machine base, and the grooved cam is hollowly sleeved on the driving shaft. The hollow worm is hollowly sleeved on the driving shaft, one end of the worm is connected with the grooved cam, and an elongated hole is formed in the length direction of the worm. A driving pin penetrating through the elongated hole is arranged on the driving shaft, the compression spring is sleeved on the driving shaft, and one end of the compression spring butts against one end of the worm far away from the grooved cam. A guide pin inserted into a groove of the grooved cam is arranged on the machine base. The output shaft is rotatably connected onto the machine base, the worm gear is connected at one ...

Automobile part machining conveyor

The invention belongs to the field of automobile part machining technology and provides an automobile part machining conveyor. The automobile part machining conveyor comprises a workbench and a feed bin, a baffle capable of movably opening an opening of the feed bin is arranged on the workbench, the baffle is fixedly connected with a cross rod below the baffle, and the drive end of the cross rod is connected with a connecting rod and an air cylinder output shaft in sequence; a sliding sleeve is assembled on the cross rod through a ball bearing, the sliding sleeve is located in a sliding hole of the workbench, a spiral groove is formed in the surface of the sliding sleeve, and a locating pin capable of being inserted into the spiral groove is fixedly arranged in the sliding hole; a clamping device is arranged at the free end of the sliding sleeve. The automobile part machining conveyor is simple in structure and capable of achieving steering of clamped workpieces.

Prevent haze gauze mask

The utility model discloses a prevent haze gauze mask belongs to health, chemical engineering technology field. Prevent haze gauze mask is used for the set of bands of hanging of hangers portion to become on the gauze mask body by gauze mask body and connection, the gauze mask body includes outside from to the interior outside layer of first outside layer, gauze mask core and second of laminating in proper order, the gauze mask core includes outside from to interior first antiseized isolation layer of laminating in proper order, viscose screen cloth layer and the antiseized isolation layer of second. The utility model discloses a prevent haze gauze mask has adhesion, separation and adsorption to haze, dust, granule, bacterium and virus to realize to purify breathe the function of air, the gas permeability is strong moreover, can ensure respiratory smoothly, comfort level that the improvement user wore.

Bidirectional drill bit

The invention discloses a bidirectional drill bit which can ensure the consistency of positions of through holes in two U-shaped supporting feet. The bidirectional drill bit comprises a driving shaft which extends into a gearbox; an end head slewing bearing of the driving shaft, in the gearbox is arranged on the rack; a driving gear engaging with a medium gear is fixed on the driving shaft; the medium gear is pivoted to a medium shaft which is fixed on the rack; a driven gear engaging with the medium gear is fixed on a driven shaft; a guide sleeve through which the driven shaft passes is arranged on the rack; two ends of the driven shaft respectively extend out from the gearbox; a first drill bit is fixed to one end of the driven shaft, and while a second drill bit is fixed to the other end of the driven shaft; the driving gear, the medium gear, the medium shaft, the driven gear and the rack are both located in the gearbox; the rack is detachably connected with the gearbox through a screw ...

Pneumatic device for mounting hinge pin

The invention discloses a pneumatic device for mounting a hinge pin. The device comprises a supporting seat, a cylinder and a rotating rod; the supporting seat comprises a supporting plate, and supporting legs which are fixedly connected with the supporting plate; the cylinder is located at the bottom part of the supporting plate and is fixedly connected with the supporting plate; a through hole and a threaded hole are formed in the supporting plate; a piston and a piston rod which are detachably connected are arranged in the cylinder; the piston rod passes through a through hole in the supporting plate and is hinged to the rotating rod; a spring is arranged between the supporting plate and the piston; the piston rod is located in the spring; two ends of the spring are respectively fixedly connected with the piston rod and the supporting plate; an air inlet pipe and an air outlet pipe are arranged on the cylinder; a supporting rod which is hinged to the rotating rod is arranged at the threaded ...

RFID (radio frequency identification) reader, electronic tag and reading and writing method

The invention discloses an RFID (radio frequency identification) reading and writing method. The RFID reading and writing method includes the steps that an RFID reader modulates a low frequency modulation signal, and transmits the low frequency modulation signal to an RFID electronic tag through a low frequency magnetic field information channel; the RFID electronic tag executes operation according to the low frequency modulation signal, and returns an operation result to the RFID reader through an ultrahigh frequency radio frequency information channel. The invention further discloses the RFID reader. The RFID reader comprises a low frequency oscillation signal generator, a first MCU, a first signal modulator, a low frequency modulation signal amplifier, an antenna coil, an ultrahigh frequency wireless receiver and a first signal demodulator. The invention further discloses the RFID electronic tag. The RFID electronic tag comprises a low frequency receiver, a second signal demodulator, ...

Method for extracting L-glutamine crude crystal from fermentation liquid

The invention relates to a method for extracting coarse L- glutamine crystal from fermentation liquor, belonging to field of extraction and separation technique in fermentation engineering. It comprises following steps: (1) preparing fermentation liquid, preparing culture medium for L- glutamine fermentation, adding culture medium into fermentation tank, heating for disinfection at 115 Deg. C for 15 minutes, cooling to 31.5 Deg. C, inoculating dissociant of yellow bacillus brevis ATCC14067 for fermentation; (2)heating said fermentation liquor to 80 Deg. C, discharging it, stewing it in antoher container, depositing bacteria and getting clear liquor and deposited bacteria, condensing and filtering them respectively, combining said filtered liquid and getting clear yellow fermentation liquor; (3) condensing clarified fermentation liquor in rotary vaccum evaporator, water bath heating to 55- 60 Deg. C, condensing to 1/ 5 volum; (4) stirring at room temeprature, cooling in refrigerator of 4 ...

Management, induction and control system of urban traffic

The invention relates to a management, induction and control system of urban traffic, which solves a problem of technology integration of a traffic signal control subsystem, a traffic induction display subsystem, a traffic monitoring subsystem and a mobile early-warning subsystem of the intelligent early-warning subsystem. The invention is characterized in that: a traffic database is in bidirectional connection with the traffic signal control subsystem, the traffic induction display subsystem, the traffic monitoring subsystem and the mobile early-warning subsystem and a traffic information issuing subsystem; and multi-source data fusion of detectors, which includes a microwave probe, a video probe, an ultrasonic probe, a geomagnetic coil, a wireless geomagnetic head, and a geomagnetic detecting head and the like. The beneficial effects are as follows: various data formats are converted into a format of a same standard; the share of traffic basic data and historical data is allowed; the ...

Positive and negative rotation tap chuck

The invention discloses a positive and negative rotation tap chuck, and relates to the field of car assembling. The positive and negative rotation tap chuck comprises a transmission mechanism and a positioning mechanism, the transmission mechanism comprises a taper handle, transition gears and a chuck body, a driving gear is fixed to one end of the taper handle through a positioning pin, the positioning pin extends to the end of the taper handle, the tail of the chuck body is sleeved with a driven gear in a non-contact mode, a driving pin is arranged on the driven gear to extend to the end face, a square key is arranged at the tail of the chuck in the radial direction and extends to the circumferential face of the chuck body, the taper handle and the chick body are coaxial, the square key is located between the taper handle and the chuck body, the driving gear is in gear fit with the driven gear through the two transition gears, a positioning mechanism comprises a tap box, the transmission ...

Jointing fastening connector

The invention relates to a mechanical stress actuator, in particular to a jointing fastening connector for flat-plate workpieces. The jointing fastening connector comprises pulleys, a pulley carrier, a middle sleeve and an upper presser plate connected in order; a polyester elastomer member is arranged between the upper presser plate and the bottom wall of the middle sleeve; the middle sleeve is provided with an opening; a flat cover is disposed at the opening and provided with a threaded hole; a screw in threaded connection of the threaded hole is further provided; the lower end of the screw is abutted to the upper presser plate; the upper presser plate is provided with a positioning socket matching with the lower end of the lower end of the screw in shape; the middle sleeve is fixedly connected with the pulley carrier through a bolt; the head of the bolt is disposed within the middle sleeve; the polyester elastomer member is disposed between the upper presser plate and the head of the ...

Panoramic data monitoring platform

Disclosed is a panoramic data monitoring platform. An intelligent monitoring platform main station is arranged in a communication machine room of a power supply company, and transformer substations, power stations, office building and machine rooms are provided with data access for on-site sensing devices such as intelligent digital video monitors, intelligent security and firefighting alarms, intelligent entrance guards and intelligent environment monitors. The on-site devices are connectively converged into the intelligent monitoring main station via internal optical fiber network in the power supply company. The panoramic data monitoring platform is complete in function and has the functions of automatic tracking and inspecting, panoramic data linkage, intelligent visible going-in and -out management, one-key tour inspection at the monitoring center, emergency remote door opening control, intelligent guarding, automatic tour inspection, fixed-time remote lamp control and the like, and ...

Zinc and cobalt metal complex taking nantenine oxide as ligand as well as synthetic method and application thereof

The invention discloses a zinc and cobalt metal complex taking nantenine oxide as a ligand as well as a synthetic method and application thereof. The synthetic method of the zinc and cobalt metal complex comprises the following step: by taking nantenine oxide as the ligand, performing coordination reaction with metal salts in a polar solvent to obtain the zinc and cobalt metal complex; and specifically, the zinc and cobalt metal complex can be synthesized by virtue of a solution process, and can also be synthesized by virtue of a solvothermal process. Results obtained by investigating the inhibition effects of the zinc and cobalt metal complex on various tumor cell strains by the applicants show that the zinc and cobalt complex plays stronger anti-tumor activity than the nantenine oxide ligand, has the anti-tumor activity on part of tumor strains significantly superior to that of cis-platinum namely a clinical anti-cancer medicine, and has relatively good potential medicinal values. A structural ...

Centre with compensation function

The invention discloses a centre with a compensation function. The centre comprises a centre body, liquid plastics and an adjusting screw, the centre body comprises a left end taper section, a middle cylinder section and a right end center tip, a cavity for containing the liquid plastics is formed in the cylinder section and comprises a disk cavity and a columnar cavity integrally communicated with the disk cavity, the adjusting screw is connected on the side wall of the cylinder section in a threaded manner, an opening of the disk cavity is sealed by the inner end of the adjusting screw, the center tip is fixed at the center of the right end of the cylinder section, and an opening of the columnar cavity is sealed by the inner end of the center tip. The centre is convenient and rapid in clamping and easy to operate, a workpiece is conveniently ejected, and production efficiency is greatly improved.

Safety tapping chuck

The invention discloses a safety tapping chuck and particularly relates to assembly tools. The safety tapping chuck comprises a safety piece, a taper shank and a chuck body, wherein a stepped outer hook is arranged at one end of the taper shank, the chuck body is provided with an axial through hole, an inner hook is arranged in one end of the axial through hole, a chuck sleeve is arranged at the position of the stepped outer hook of the taper shank, the stepped outer hook and the inner hook are hooked together in a matched mode, a concave hole is formed in one end face of the chuck body, the portion, close to the chuck body, of the taper shank is sleeved with a positioning circular ring, the positioning circular ring is positioned on the taper shank through a pin, a spring hole is formed in the circumference of the positioning circular ring in the axial direction, the other end, close to the positioning circular ring, of the taper shank is sleeved with a tail ring, a spring groove is formed ...

Oleanolic acid-uridine conjugate as well as preparation method and application thereof

The invention discloses an oleanolic acid-uridine conjugate, a preparation method thereof, and application of the oleanolic acid-uridine conjugate in the field of pharmacy. The applicant discovers that the oleanolic acid-uridine conjugate has much higher anti-tumor activity than oleanolic acid, a matrix of the oleanolic acid-uridine conjugate, and a lead compound is provided for developing new anti-tumor drugs. The conjugate has a structure of the general formula (II) shown in the specification.

Clamp for machining automobile flange

The invention discloses a clamp for machining an automobile flange. The clamp comprises a spindle body, a first nut, a first double-end bolt and a spring collet, wherein the left end of the spindle body is provided with a taper shank, the middle part of the spindle body is provided with a shaft shoulder, and the spring collet is arranged on the right end of the spindle body in a sleeving manner; the right end of the shaft shoulder is provided with a conical head part; the left end of the spring collet is provided with an inner conical hole which is matched with the conical head part; the middle part of the shaft shoulder is provided with a cylindrical positioning part; the left end of the shaft shoulder is provided with a conical limiting part; the right end face of the spindle body is provided with an inner hole for accommodating the first double-end bolt; the first double-end bolt is in pin connection with the right end of the spindle body; the first nut is connected to the right end ...

Side jacking device of support

The invention relates to a side jacking device of a support. A screw can turn by rotating a hand wheel, and accordingly the screw can move along a fixed frame, and a pressing head which penetrates out of the support can press work pieces tight. According to the side jacking device, the fixed frame is connected with a base so the fixed frame and the base form a whole body, and furthermore, the counterforce of the screw is acted on the base totally through the fixed frame as a threaded hole in the fixed frame is matched with the screw. The support simply provides a supporting effect for the screw instead of directly receiving the counterforce of the screw, so damage and deformation of the support caused by the fact that the counterforce of the screw acts on the support during processing can be avoided.

Metal complex using plumbagin as ligand, synthesizing method and usage thereof

The invention discloses a metal chelate which takes plumbagin as ligand, and the synthesis method and application thereof. The metal chelate is represented by the right formula, wherein, M represents the metal ion able to accept lone pair electrons can be main group matel ion, or transition metal ion, or rare earth metal ion such as Ca(II), Mg(II), Sn(IV), Cu(II), Co(II), Ni(II), Zn(II), Fe(II), Mn(II), Ag(I), Mo(VI), Pd(II), Ru(III), W(VI), Pt(II), Y(III), La(III), Nd(III), Sm(III), Eu(III), Er(III). The invention synthesizes a series of metal chelate which takes plumbagin as ligand and reacts with the metal salt. The produced chelate has an inhibition to a plurality of tumor line. The result indicates a plurality of chelate having a more remarkable anti-tumor activity than the plumbaginand have a higher medicine value and can be used for the preparation of different anti-tumor medicine.

Feeding mechanism for gear machining

The invention discloses a discharging mechanism for gear machining. The discharging mechanism comprises a motor, a machine base, a driving chain wheel, a driven chain wheel, a transmission chain, a pushing rod and a poking rod, wherein the driving chain wheel and the driven chain wheel are the same in size, the driving chain wheel is driven by the motor, the driving chain wheel and the driven chain wheel are in transmission through the transmission chain, one end of the poking rod is connected to one section of the transmission chain, one end of the pushing rod is hinged to the other end of the poking rod, the other end of the pushing rod is connected with the machine base in a sliding mode, and the distance between the hinging center of the hinging end of the pushing rod and the axis of the chain is equal to the pitch radius of the driving chain wheel. When discharging a gear, the discharging mechanism for gear machining will not damage the gear.

Cylinder barrel surface treatment fixing device

The invention discloses a cylinder barrel surface treatment fixing device for fixing a cylinder barrel to be surface-treated. The cylinder barrel surface treatment fixing device comprises a clamp body, a workbench is fixed on the right side of the clamp body through a bolt and is provided with a semicircular boss, the boss outline is matched with a partial outline of an opening of the cylinder barrel, the upper side of the workbench on the clamp body is in threaded connection with the bolt, two ends of the bolt are provided with separable threads respectively, the left end of the bolt is connected on the clamp body through a fixed nut, the right end of the bolt penetrates a slot of a floating plate, the slot is arranged in the vertical direction and in clearance fit with the bolt, a compression spring is connected between the floating plate and the clamp body, a movable nut is arranged on the side of the floating plate contacting with the compression spring and is connected with the right ...

ELECTRIC CONTROL DEVICE WITH ADJUSTABLE AND LAMP

... 一种带灯脉冲可调控制电气装置，属于交流源脉冲自动控制领域。采用单结管组成的周期可调的脉冲振荡电路，由单结管的发射极输出，经二个三极管和一个稳压管组成的脉宽可变的驱动整形电路，去控制双向可控硅的门极，使双向可控硅导通，充分导通，截止。周而复始，从而使负载得到周期可调的脉宽可变的交流市电。可广泛应用于各种负载呈周期性变化的设备。 ...

Tool for demounting brake pads of lathe

The invention discloses a tool for demounting brake pads of lathes. The tool comprises a pull rod and a clamping device which are in detachable connection. The clamping device comprises a pull plate and two clamping plates which are fixedly connected. The sections of the clamping plates are arc, and strip-shaped through holes and arc grooves are formed in the clamping plate. Clamping blocks are arranged in the arc grooves and are detachably connected with the clamping plates. A bolt is arranged between the clamping plates, the diameter of a threaded rod of the bolt is smaller than the width of the strip-shaped through holes in the clamping plates, and a locking nut is arranged on the bolt. A through hole is formed in the pull plate, the aperture of the through hole is larger than the diameter of the pull rod, and a nut is arranged in the through hole. The pull plate is composed of a clamping part, a polished rod part and a threaded part from left to right in sequence, and threads of the ...

Circulating sludge biological fermentation tank, processing system and processing method

The invention discloses a circulating sludge biological fermentation tower which comprises a tower body, an openable tower cover, a storage tank and a plurality of rotatable fermentation devices, wherein the openable tower cover is arranged on the top of the tower body; the storage tank is arranged at the bottom of the tower body; the rotatable fermentation devices are arranged in the tower body in parallel; the fermentation devices divide an inner cavity of the tower body into a plurality of layers of fermentation bins along the axial direction; the lower part of each layer of fermentation device is provided with a ventilating oxygen supply pipeline communicated with a blower; the upper part of each layer of fermentation device is provided with an air outlet pipeline communicated with aninduced draft fan and a monitoring device; the monitoring device is controlled by a control room; and a mechanism for driving the fermentation devices and the tower cover to move, the blower and the induced ...

Clamping device for fan-shaped workpieces

The invention relates to a clamping device for fan-shaped workpieces. The clamping device comprises a positioning plate, a mandril is connected with the center portion of the left side of the positioning plate, a positioning shaft is arranged on the center portion of the right side of the positioning plate, the positioning shaft is sleeved with a set of compressing sleeves and a set of rubber sleeves, the external diameters of the compressing sleeves are equal to the external diameters of the rubber sleeves, the number of the set of compressing sleeves is one more than the number of the set of rubber sleeves, the set of compressing sleeves and the set of rubber sleeves are distributed at interval, the set of compressing sleeves are slidingly connected with the positioning shaft, the part of the positioning shaft, at the right side of the rightmost compressing sleeve, is sleeved with a compressing tube, the external diameter of the compressing tube is smaller than the external diameter of ...

Tool for pulling out cylinder sleeve of compressor

The invention discloses a tool for pulling out a cylinder sleeve of a compressor. The tool comprises a pull rod, a pressing plate, a stop sleeve, an inner taper sleeve, a taper head, a plurality of first screw rods and a plurality of second screw rods, wherein the first screw rods are in threaded connection with the pressing plate, the second screw rods are in threaded connection with the pressing plate, a through hole is formed in the pressing plate, the pull rod penetrates through the through hole in the pressing plate, a threaded part and a sliding part are successively arranged on the pull rod from left to right, the pull rod and the taper head are connected in a demountable manner, a plurality of grooves are axially formed in the inner taper sleeve, a thrust bearing and a nut sleeve the threaded part of the pull rod, the pull rod penetrates through the stop sleeve, the stop sleeve comprises a baffle and a sleeve, a through hole communicated with the inner hole of the sleeve is formed ...

Skin recovery lotion

The invention discloses skin recovery lotion. The lotion consists of the following raw materials in percentage by mass: 10 to 20 percent of sodium sesquicarbonate, 3 to 20 percent of glycerin, 1 to 3 percent of borax, 5 to 15 percent of calamine, 1 to 3 percent of sodium chloride, 10 to 30 percent of ethanol, 10 to 30 percent of chlorhexidine, an appropriate amount of essence and the balance of deionized water. The skin recovery lotion has pleasant smell and makes skin fresh and smooth. A test result indicates that the skin recovery lotion has high bacteriostatic efficacy and does not have skin acute absorption toxicity to damaged and complete skin of a rat; the skin recovery lotion is light and easy to carry; and after being used, the skin recovery lotion protects the skin as well as treats and prevents skin diseases and local skin infection. The skin recovery lotion is suitable for cleaning and tendingthe skin of field operation personnel, officers and soldiers in the troops under special ...

Apparatus and method for switching-over light path

A device for switching light path comprises an input, an output, a free space light path between said input end and output end and a prism forming switching light path with can make the light beam have two times of refraction and one time of reflection when it is placed between the input and output, removing the prism to make the incident light from the input couple with the output via the free space light path, then plugging in the prism to make the input incident light form a switching light path after two times of refraction and one time of reflection and couple with the output.

Lever type hole drilling die

The invention discloses a lever type hole drilling die. A drilling die plate is fixed by high and low support columns, high and low ends of workpiece are positioned by high and low supports, a locking nut is positioned and fixed fittingly by a positioning pin in the middle of a fixing table, and the workpiece is fixed on the fixing table. Since the drilling die plate is provided with two drilling die sleeves, a drill bit can drill holes in two ends of the workpiece through the drilling die sleeves. As the lever type hole drilling die only needs once clamping and fixing, two ends of the workpiece can be positioned and drilled, and trouble caused by multiple clamping is avoided. In addition, once clamping is high in accuracy, accumulation of machining errors is avoided, clamping time is saved and machining efficiency is higher.

Rare-earth metal complex taking lysicamine as ligand, as well as synthesizing method and application thereof

The invention discloses a rare-earth metal complex taking lysicamine as a ligand, as well as a synthesizing method and application thereof. The complex is obtained by dissolving rare-earth metal salt and lysicamine in a polar solvent and performing coordination reaction; particularly, the complex can be synthesized through a solution method or a solvothermal method. Through inspecting the inhibiting effects of the complex on various tumor cell strains, the rare-earth metal complex has better in-vitro anti-tumor activity than the lysicamine ligand, has a potential medical value, and can be expected to be used for preparing various anti-tumor medicines. The chemical structural formula of the complex is shown in the specification, wherein M is chosen from tervalent rare-earth cation in the periodic table of elements.

Historical relic stores up receives container

The utility model provides a historical relic stores up receives container is possessing under the condition that can hold different article, the effect that provide one easy and simple to handle, has modeling effect. Including forming the figurative body of books, the body has the inner space that first portion, second portion and first portion, second portion limitd jointly, is provided with lock system mechanism. First portion is including the bottom surface page or leaf of top surface page or leaf, the side of connecting the top surface page or leaf and connection side, common cladding second portion, second portion has the neighboring area and sets up on the neighboring area, forms the line tissue that the kenel was repeatedly put to the similar books page or paper, and produces special visual effect's structural design.

Thin-wall pipe fitting excircle machining clamp

The invention discloses a thin-wall pipe fitting excircle machining clamp which comprises a mandrel, a jacket and an ejector bushing. An elastic conical head with a big-diameter end outward is arranged at the end of the mandrel, the jacket is arranged on the mandrel in a sleeved manner, a protrusion is arranged on the outer wall of the jacket, a tensioning sleeve is arranged at a position, on the inner side of the protrusion, on the outer wall of the jacket in a sleeved manner, a group of pressurizing holes are formed in the jacket, the ejector sleeve is arranged on the mandrel in a sleeved manner and positioned on the inner side of the jacket, two barrels are arranged on the outer wall of the ejector sleeve, central lines of the barrels are positioned on a same straight line, a spring is arranged at the bottom end of each barrel, an ejector column is arranged at the end of each spring, and a locking nut used for locking the mandrel is arranged at the end, away from the jacket, of the ejector ...

Dual-adjustment clamping device

The invention discloses a dual-adjustment clamping device. The dual-adjustment clamping device comprises a positioning barrel, at least two clamping blocks are hinged to the end of the right side of the positioning barrel, the outer wall of the positioning barrel is sleeved with a pressing barrel, the pressing barrel is in threaded connection with the positioning barrel, and the end of the right side of the pressing barrel abuts against the outer sides of the clamping blocks; a sleeve is arranged in the positioning barrel, the right side of the sleeve is sleeved with a cone, the small-diameter end of the cone is leftward, the outer wall of the cone abuts against the inner sides of the clamping blocks, and a locking nut used for locking the sleeve is further arranged at the end, located on the left side of the positioning barrel, of the sleeve; a pull rod is arranged in the sleeve, a workpiece sleeve is arranged at the end of the right side of the pull rod, a set of ejector rods are arranged ...

Composite layer, method for controlling acidization of mining slag heap yard and revegetation method

The invention provides a composite layer. The composite layer is used for controlling acidization of a mining slag heap yard and comprises a flow guiding layer, a first nonwoven fabric layer, a sand and stone layer, a second nonwoven fabric layer and an isolation layer which are arranged in sequence. The invention further provides a method for controlling the acidization caused by the mining slag heap yard and a revegetation method of the mining slag heap. By establishing a buffer isolation zone between a mining slag heap yard acidization surface and a plantation layer, the acid water containing a variety of heavy metal ions can be blocked and isolated, sulphur minerals in the lower layer can be effectively prevented from being further oxidized and acidified, the acid liquor in the lower layer can be prevented from permeating reversely into the upper layer so as not to pollute the plantation layer and poison plants under the action of soil capillaries. By reconstructing the plantation layer ...

Stirring transfer trolley for cutting fluid

The invention discloses a stirring transfer trolley for cutting fluid. The cutting fluid is fed into a box through a fluid inlet, and stirring blades are driven through a stirring device to rotate after the cutting fluid stands for a long time in the box, so that the cutting fluid is mixed evenly and then discharged from a fluid outlet for using. In order to stir the cutting fluid more sufficiently, no dead corners exist, air is blown into the box through an air pump and an air outlet pipe and used for mixing and stirring the cutting fluid inside the box, the effect of mixing the cutting fluid is better and even, and the machining effect is better. The transfer trolley can transport the cutting fluid and be used as a storage container for the cutting fluid, and the cutting fluid can be automatically mixed and stirred in the using process, and is put into production for using after being evenly mixed.

切换光路的装置及方法

... 一种切换光路的装置及方法，为提供一种体积小、重量轻、结构简单、价格低廉、控制稳定且达到多输入/输出的光学系统控制装置及方法，提出本发明，本发明装置包括输入端、输出端、形成于输入端与输出端之间的自由空间光路及棱镜；棱镜为置入输入端与输出端之间可将光束折射两次及全反射一次以形成切换光路的楔形棱镜或等腰棱镜；本发明方法包括于输入端与输出端之间设置自由空间光路；于自由空间光路内移动棱镜；移离棱镜使输入端射入光经自由空间光路与输出端耦合；插入为楔形棱镜或等腰棱镜的棱镜，输入端射入光经为楔形棱镜或等腰棱镜的棱镜折射两次及反射一次形成的切换光路与输出端耦合。 ...

Revegetation system on steep rocky slopes and implementing method thereof

The invention discloses a revegetation system on steep rocky slopes and an implementing method thereof, which are suitable for surface vegetalization of steep rocky uncover slopes with the gradient of 60 degrees above. A slope drainage system is arranged in the system to prevent the vegetalization layer from being flushed by rainwater and reduce water loss and soil erosion; a mix-sprayed vegetalization layer plastic-covered with iron wire corrugated meshes and consisting of continuous fiber is arranged on the slopes and has stable structure, rich nutrition and functions of water conservation and ventilation. The casting separator prevents the mix-sprayed vegetalization layer from sliding downwards; and a drop irrigation facility is distributed to make sure that the vegetalization layer is moist. After maintenance of mix-sprayed construction on the slopes, the vegetable layer with herbaceous plants and shrubs can be effectively formed, thereby reconstructing the destructed vegetables on ...

Biological drying system and method for sludge

The invention relates to a biological drying treatment system for sludge, which comprises a glasshouse, a blower and a tilting fermenting bed, wherein the tilting fermenting bed is arranged in the glasshouse; the tilting fermenting bed comprises a porous tilting plate bed, and the plate bed is divided into an upper fermenting area and a lower fermenting area; each fermenting area is divided into a plurality of tilting fermenting bins; control flashboards are arranged between the upper fermenting area and the lower fermenting area and at the lowest part of the lower fermenting area; an air bincommunicated with the air discharge pipe of the blower is arranged below the plate bed; a material discharge belt is arranged at the lowest part of the lower half fermenting area; the material discharge belt is communicated with a packing room provided with a screening machine; a double-screw mixing machine is connected with the top part of the plate bed through the material distribution belt of a movable ...

Special-shaped plate drilling locating die

The invention provides a special-shaped plate drilling locating die which comprises a base. A left supporting table and a right supporting table are fixed to the base. A protruding part of a special-shaped plate is inserted into an installing hole in the left supporting table. A locking screw is rotated for clamping the part, inserted into the installing hole, of the special-shaped plate, and the effect of partial fixing is achieved. Pressing screws on the side supporting tables are used for clamping the middle section of the special-shaped section. As three vertical top pins are arranged on the base, the special-shaped plate can be effectively fixed and clamped through the effect of the top pins and the pressing screws. In addition, two holes in the side supporting tables are used for locating the special-shaped plate, bolts and nuts are inserted into the holes for fixing, the special-shaped plate can be clamped completely, and therefore the requirement for machining is met.

Continuous spinning machine

The invention provides a continuous spinning machine, which comprises a shell, a rotating shaft arranged on the shell, and a motor for driving the rotating shaft, wherein the top of the shell is provided with a plurality of nozzles; the continuous spinning machine also comprises a guide wheel arranged on the rotating shaft, and a thread collecting plate spanned at the inner side of the shell and positioned below the rotating shaft; the thread collecting plate is provided with a plurality of thread collecting holes; a plurality of thread discs positioned by positioning tubes are arranged at the bottom of the shell; and elastic polyester threads are wound on the thread discs, and the elastic polyester threads pass through the thread collecting holes and are wound on the guide wheel and sprayed from the nozzles, wherein the thread collecting holes and the nozzles point the guide wheel respectively. The elastic polyester threads pass through the thread collecting holes and are wound on the ...

Part fixing and connecting device

The invention relates to a clamping and machining tool, in particular to a part fixing and connecting device. The part fixing and connecting device comprises a frame, and the frame is provided with a through hole allowing a cylindrical rod to transversely pass. The part fixing and connecting device further comprises at least three limit wheels and wheel carriers, and the limit wheels are arranged around the through hole and circumferentially distributed uniformly on the frame by taking the through hole as the center. The limit wheels are rotationally connected in the wheel carriers, the wheel carriers are fixed on the frame, the peripheral sides of the limit wheels are wheel surfaces with middles recessed and two sides protruded, the wheel surfaces are abutted against the cylindrical rod in the through hole, and the recess is arc-shaped in curvature identical with the surface of the cylindrical rod. The part fixing and connecting device further comprises a motor driving the limit wheels ...

Clamping and fixing device for adjacent side faces of square nut

The invention discloses a clamping and fixing device for adjacent side faces of a square nut so as to achieve convenience, rapidness and stability in fixation. The clamping and fixing device comprises a fixture, a workbench used for holding the bottom surface of a square nut workpiece is arranged on the fixture, an V-shaped upper clamping jaw and a lateral clamping jaw are hinged to the lateral side of the workbench, included angles of two sides of the upper clamping jaw are 120 degrees and face downwardly, the outer end of one side of the upper clamping jaw is hinged to the fixture, the outer end of the other side of the upper clamping jaw is a clamping portion and is positioned on the upper surface of the workpiece, a clamping portion of a lower clamping jaw is positioned on the lateral side of the workpiece and is positioned in the same vertical direction as a hinged point of the lower clamping jaw, a driving rod is hinged to one side, away from the workbench, of the lower clamping jaw ...

Fixture for finish turning of automotive pulleys

The invention discloses a fixture for finish turning of automotive pulleys. The fixture comprises a mandrel, a pull bar, expansion blocks and a spring. The center of the mandrel is provided with an inner hole. The mandrel comprises a fixing seat arranged at the left end, a tapered transition segment arranged in the middle and a splined fixing segment arranged at the right end; the pull bar is in clearance fit with the inner hole of the mandrel; the right end of the pull bar is provided with a presser head located in an inner hole of the splined fixing segment; the presser head is peripherally provided with three slopes; the splined fixing segment is peripherally provided with three slides; the expansion blocks are slidably connected into the slides; the inner sides of the expansion blocks fit the slopes of the presser head; the outer sides of the expansion blocks are provided with grooves used for fastening springs; the springs are fastened in the grooves and wind into spiral coils. The ...

Fixing device

The invention discloses a fixing device. The fixing device comprises a first connecting assembly, a second connecting assembly and a carrying part, wherein the carrying part is connected to the first connecting assembly in a hole and shaft matching manner, the carrying part and the second connecting assembly form a self-locking structure, the first connecting assembly comprises a first part and a second part, the carrying part comprises a first shaft which is arranged in the first part and the second part, a circular groove is formed in one end of the first shaft, a first hole is formed in the lower end of the first part, the inner side of the first hole is matched with the circular groove, the lower end of the first part is connected to the upper end of the second part, the first connecting assembly is used for connection with parts such as a radio frequency card and a camera, the second connecting assembly is used for adsorbing the fixing device on a carrier, the carrying part is used ...

Turning clamp of outer walls of cylinders

The invention discloses a turning clamp of outer walls of cylinders. The turning clamp comprises a positioning tube connected with a machine tool. At least two conical chucks are arranged on the end surface on the left side of the positioning tube, and the top ends of the chucks are hinged to the positioning tube. An inner hole of the positioning tube is conical, the bigger-diameter end of the conical hole faces the left, a conical head is arranged in the conical hole and is in clearance fit with the conical hole, and the bigger-diameter end of the conical head is located in the conical hole. A through hole is axially formed in the conical head, and a mandrel is arranged in the through hole and is in threaded match with the through hole. A center hole is formed in the center of the end on the right side of the mandrel and a tip butting against the center hole is further arranged on the right side of the mandrel. The turning clamp further comprises a positioning spindle located on the left ...

Metal complex with liriodenine as ligand and its synthesis process and use

Pilot hole fine adjusting device

The invention relates to an auxiliary stamping mould output accessory, in particular to an inverted stamping type pilot hole fine adjusting device. The pilot hole fine adjusting device comprises an upper bow rack, upper connecting rods, lower connecting rods and a hanging disc, the upper row rack, the upper connecting rods, the lower connecting rods and the hanging disc are sequentially connected from top to bottom, an arc-shaped limiting groove is formed in the hanging disc, a groove opening of the arc-shaped limiting groove is upward, the upper bow rack is fixed to an upper mould frame, the two upper connecting rods are connected with the two ends of the upper bow rack respectively, the lower connecting rods are hinged to the lower ends of the upper connecting rods respectively, and the hanging disc is hinged between the two lower connecting rods. A locating shaft connected in the arc-shaped limiting groove in a sliding mode is further included, and the locating shaft is fixed to a lower ...

Marbofloxacin rare-earth chelates as well as synthetic method and application thereof

The invention discloses marbofloxacin rare-earth chelates as well as a synthetic method and an application thereof. The structural formula of the marbofloxacin rare-earth chelates is as shown in a formula (I) as shown in the specification, wherein Ln (III) represents a trivalent rare-earth metal ion selected from the periodic table of the elements. The marbofloxacin rare-earth chelates can be synthesized by a normal-pressure solution method. The applicant finds out, through survey, that the marbofloxacin rare-earth chelates are equivalent to marbofloxacin in bacteriostatic activity to various bacteria, and obviously lower than marbofloxacin in toxicity; the toxicity of most rare-earth chelates is up to the ungraded standard of acute oral toxicity of European Community and the level 2 standard of Evaluation of Food Safety of the People's Republic of China; the measured LD50 value of a lanthanum chelate is 11.123g/kg, a lutetium chelate is at level 1 (nontoxic compound), and the LD50 value ...

Cutting fluid mixing transfer trolley

The invention provides a cutting fluid mixing transfer trolley. Cutting fluid is fed into a first cavity through a fluid inlet, and the cutting fluid in the first cavity can be transported and stored along with a trolley body. When the cutting fluid needs to be discharged, the cutting fluid in the first cavity is sucked into a second cavity through a fluid suction pump, the cutting fluid can be mixed in the suction process, the cutting fluid is fed into the second cavity after being mixed, and the uniformly-mixed cutting fluid is discharged through a fluid discharge pipe communicated with the second cavity. The transfer trolley can be used for transporting the cutting fluid and can also be used as a storage container for the cutting fluid; besides, when the transfer trolley is used, the cutting fluid can be automatically mixed and stirred and is put into production and use after being uniformly mixed.

Turning tool used for automobile sleeve part

The invention discloses a turning tool used for an automobile sleeve part. The turning tool comprises a central spindle, a pull rod, an elastic fixing sleeve and a nut. An inner hole is formed in the center of the central spindle, the central spindle comprises a fixing base at the left end, a cylindrical transition section in the middle and a conical section at the right end, and the pull rod is in clearance fit with the inner hole of the central spindle. The inner hole of the elastic fixing sleeve is an inner conical hole matched with the conical section, a fixing cover is arranged at the right end of the elastic fixing sleeve in an integrated mode, multiple expansion joints are arranged in the circumferential direction of the elastic fixing sleeve, rubber seal rings are arranged inside the expansion joints, a hook part is arranged in the circumferential direction of the left end of the elastic fixing sleeve, a through hole is formed in the center of the fixing cover and used for penetrating ...

Indicator lamp control method and device and multi-module system

The invention provides an indicator light control method and device and a multi-module system. The method is applied to indicator lights of all function modules in the multi-module system. The indicating lamps are used for displaying working states of the function modules. The indicator light control method comprises the following steps: in response to a target trigger signal, controlling a preset counter to count; the latest heartbeat frame sent by the target device is acquired, and the first step is executed when the latest heartbeat frame meets a preset condition; controlling the on-off of the indicating lamp according to the count value of the preset counter; the preset condition is that the difference between the numerical value in the latest heartbeat frame and the numerical value in the target heartbeat frame is a preset value; the first step comprises the step of resetting a count value of a preset counter. According to the invention, under the condition that the existing communication ...

Positioning device for grinding of ejection rod tips of test tool

The invention discloses a positioning device for grinding of ejection rod tips of a test tool. The positioning device is used for clamping the ejection rods of different semi-diameters and sizes. A positioning plate is formed on the upper portion of a base and comprises a base plate and a vertical plate which are fixed with each other. A horizontal first semi-circular through groove is formed in the middle of the right side of the vertical plate. A first semi-circular insert is detachably arranged in the first semi-circular through groove. A horizontal support shaft is fixed on the lower portion of the right side of the vertical plate. The lower end of a pressing plate is hinged with the support shaft. A second semi-circular through groove is formed in the middle of the left side of the pressing plate. A second semi-circular insert is detachably arranged in the second semi-circular through groove. As the vertical plate and the pressing plate are abutted against each other, the semi-circular ...

Short tube positioning processing tooling

The invention discloses a short tube positioning processing tooling, which is used for stably clamping a workpiece. The short tube positioning processing tooling comprises a fixture body, wherein the fixture body is detachably connected with a worktable, the worktable is a columnar body of which the middle part is provided with an annular boss, the lower end of the worktable is provided with thread and is connected with the fixture body, the side wall of the upper section of the worktable and the upper surface of the boss are used for positioning a tubular workpiece, a clamping block is arranged at the side of the worktable and can straightly move along the radial direction of the workpiece, the clamping part, facing the worktable, of the clamping block is provided with a v-shaped surface, the middle part of the clamping block is detachably connected with a positioning pin, the positioning pin is inserted into a strip hole of the fixture body to guide the moving direction of the clamping ...

Tool for disassembling double-end stud

The invention discloses a tool for disassembling a double-end stud. The tool for disassembling the double-end stud comprises a rotary sleeve, a screw thread pore plate and a mandril. The rotary sleeve is connected with the mandril in a threaded mode. The screw thread pore plate is detachably connected with the rotary sleeve. A handle part and a screw thread part are sequentially arranged on the mandril from the top to the bottom. The diameter of the handle part is larger than the diameter of the screw thread part. Mandril handles are arranged on the handle part. The rotary sleeve is provided with a first screw thread through-hole, a blind hole and rectangular through-holes. The first screw thread through-hole is communicated with the blind hole. The shaft axis of the first screw thread through-hole and the shaft axis of the blind hole are collinear. The rectangular through-holes are communicated with the blind hole. The rotary sleeve is provided with a second screw thread through-hole.

Device for treating sludge in industrial sewage

The utility model provides a device for treating sludge in industrial sewage. The device comprises a support plate, the tank body is fixedly connected to the top of the supporting plate; the pressuresupply system is arranged at the top of the inner wall of the tank body; the high-temperature treatment assembly is arranged at the bottom of the inner wall of the tank body; the power assembly is fixedly connected to the left side of the top of the supporting plate; the grid plate is fixedly connected between the two sides of the inner wall of the tank body, and a discharging opening is formed inthe bottom of the tank body; ventilator. According to the utility model, sludge can be placed on the grid plate through the device; a pressure supply system of the device is adopted, so that the speed of sludge passing through the grid plate is greatly increased, the sludge which is originally difficult to treat through the filter plate quickly passes through the filter plate, organic pollutantsin the ...

Synthetic method of oxidized nantenine and application of oxidized nantenine

The invention discloses a synthetic method of oxidized nantenine and application of the oxidized nantenine. The synthetic method of the oxidized nantenine comprises the following steps: taking 2-(benzo[d][1,3]dioxol-5-yl)acetic acid and 3,4-dimethoxy phenethylamine as starting materials, and conducting seven-step reaction to synthesize the oxidized nantenine. Compared with the prior art, the organic complete synthetic method of the oxidized nantenine is provided by the invention; experiments indicate that the oxidized nantenine has a proliferation inhibitory activity against a plurality of human tumor cell strains, shows up a good antitumor activity in vitro, is excellent in potential medicinal value, and can be applied to preparation of various anti-tumor drugs.

Die capable of completing two working procedures

The invention provides a die capable of completing two working procedures, which adopts the technical proposal as follows: the die capable of completing two working procedures comprises a base, a lower die holder and a male die arranged on the upper surface of the lower die holder, wherein the lower die holder is fixed at the left part of the upper surface of the base. The key point of the die lies in that the middle part of the upper surface of the base is provided with a lifting and tilting device, and the right part of the upper surface of the base is provided with a positioning plate. The die can complete the two working procedures of acquisition and delivery of modules, and the two working procedures of pressing and cutting are also can be completed on the die, thus saving time and labor, and having high work efficiency.

Welding positioning tool

The invention relates to an automobile workpiece welding tool, in particular to a welding positioning tool. The welding positioning tool comprises a rack. The rack is provided with a large-workpiece positioning clamp driven by an air cylinder. The rack is further provided with a small-workpiece positioning clamp. The small-workpiece positioning clamp comprises a first clamping claw, a third clamping claw and a fifth clamping claw which are used for limiting. The small-workpiece positioning clamp further comprises a second clamping claw and a fourth clamping claw which are used for clamping, both the inner side of the first clamping claw and the inner side of the fifth clamping claw are fixedly provided with limiting plates, the two sides of the third clamping claw are provided with limiting plates respectively, and the lower side of the second clamping claw and the lower side of the fourth clamping claw are provided with positioning claws. The welding positioning tool is used for preventing ...

Welding unit of automotive doorsill plates

The invention belongs to the technical field of welding and particularly relates to a welding unit of automotive doorsill plates. The welding unit comprises a welding torch and a clamping mechanism. The clamping mechanism comprises a bench, a bearing frame, a clamping head and a controller; the controller controls the clamping head to clamp or loosen a workpiece; the bearing frame is fixedly connected to the bench; one side of the bearing frame is provided with a guide block; the guide block is provided with a guide rail fastening groove used for guiding the welding torch. The welding unit allows an operator to find a welding spot and perform welding quickly, and welding efficiency is improved.

Ruthenium and rhodium metal complexes taking lysicamine as ligands as well as synthetic method and application of ruthenium and rhodium metal complex

The invention discloses two novel ruthenium and rhodium metal complexes taking lysicamine as ligands as well as a synthetic method and application of the two novel ruthenium and rhodium metal complexes. The synthetic method of the ruthenium and rhodium metal complexes comprises the following steps: dissolving dichloro.tetra(dimethyl sulfoxide) ruthenium (II) or rhodium trichloride and lysicamine into a polar solvent, and performing complexation reaction to prepare the ruthenium and rhodium metal complexes, wherein the ruthenium and rhodium metal complexes can be synthesized by virtue of solution methods or solvothermal methods. After the applicants investigate the proliferation inhibition activity of the ruthenium and rhodium metal complexes on human tumor cell lines such as NCI-H460, HepG-2, DLD-1 and MGC80-3 and the toxicity of the ruthenium and rhodium metal complexes to human normal liver cells HL-7702, results show that the ruthenium and rhodium metal complexes have significant in-vitro ...

Clamp for machining automobile thin-wall part

The invention discloses a clamp for machining an automobile thin-wall part. The clamp comprises a spindle, a screw, a pressing sleeve, butterfly springs and a centering sleeve, wherein the lower end of the spindle is provided with a taper shank, the middle part of the spindle is provided with a positioning boss, and the upper end of the spindle is provided with a cylindrical fixing section; a first butterfly spring, the centering sleeve and a second butterfly spring are arranged on the cylindrical fixing section in a sleeving manner in sequence; the lower end of the first butterfly spring is abutted against the positioning boss; the upper end of the second butterfly spring is provided with the pressing sleeve which slides along the axial direction of the cylindrical fixing section; the excircle size of the pressing sleeve is smaller than the size of an inner hole of a workpiece; the center of the upper end of the cylindrical fixing section is connected with the screw; the screw is abutted ...

Platinum (II) complex by taking chiral compound as ligand as well as synthetic method and application of platinum (II) complex

The invention discloses a platinum (II) complex by taking chiral 4-(2,3-dyhydroxylpropyl)-methanamide-6-aza-benzanthrone as a ligand as well as a synthetic method and application of the platinum (II) complex. The synthetic method of the complex comprises the following steps: dissolving (+)-4-(2,3-dyhydroxylpropyl)-methanamide-6-aza-benzanthrone or (-)-4-(2,3-dyhydroxylpropyl)-methanamide-6-aza-benzanthrone and dichloro.bi(dimethyl sulfoxide)mixed platinum (II) in a polar solvent, mixing to carry out a complexing reaction, thereby obtaining the platinum (II) complex. The complex obtained by the inventor has obvious in-vitro antitumor activity, the in-vitro antitumor activity of a tested tumor strain is universally higher than that of an original chiral ligand, and the complex has high potential medicinal value and is expected to be used for preparing various antitumor medicines. The structural formulas of the complex disclosed by the invention are respectively shown in the formulas (I) and ...

Lysimachia foenum-graecum hance saponin extract having more than or equal to 30 percent of saponin and extraction process thereof

The invention provides a white crystalline powdered lysimachia foenum-graecum hance saponin extract having more than or equal to 30 percent of saponin, and discloses an extraction process of the extract. By taking lysimachia foenum-graecum hance as a raw material, the extraction process comprises the following steps of: extracting solvent, concentrating, performing resin absorption, performing resin decoloring by washing, eluting with alcoholic solution, collecting eluent, drying, obtaining a crude lysimachia foenum-graecum hance saponin product, heating to dissolve the crude lysimachia foenum-graecum hance saponin product by using alcohol, concentrating, drying and obtaining the white crystalline powdered lysimachia foenum-graecum hance saponin extract having more than or equal to 30 percent of saponin. The extraction process has the advantages of simple process, low production cost, high saponin yield, sufficient and reasonable utilization of the big polar part of the lysimachia foenum-graecum ...

Fixture for machining of automotive thin-wall sleeves

The invention discloses a fixture for machining of automotive thin-wall sleeves. The fixture comprises a mandrel, a nut, a gland, Belleville springs and a centering sleeve. The Belleville springs include a first Belleville spring and a second Belleville spring. The left end of the mandrel is provided with a fixed handle and a positioning boss. The middle of the mandrel is provided with a stepped shaft integrated to the positioning boss. The right end of the mandrel is provided with a thread portion integrated to the stepped shaft. The stepped shaft is axially and sequentially sleeved with the first Belleville spring, the positioning sleeve, the second Belleville spring and the gland; the left end of the first Belleville spring sleeves the outer edge of the gland; the gland is provided with a presser table abutted to the right end of the second Belleville spring; the gland axially slides along a small-size segment of the stepped shaft; the nut is connected to the thread portion; the left ...

Multi-point positioning and clamping die for plate

The invention discloses a multi-point positioning and clamping die for a plate. The multi-point positioning and clamping die for the plate comprises a base, wherein four supports are fixed to the base, and the plate is fixed and positioned through the four supports. The plate is horizontally limited and clamped through two left positioning chucks on the left support and a right pressing block on the right support. The upper end face and the side faces of the lower support are in contact with the plate, the upper end face of the lower support plays a role in supporting, and the side faces of the lower support play a role in limiting and positioning. The plate is limited and clamped in the vertical direction through an upper pressing block connected to the upper support in a sliding mode and the lower support. Finally, the plate can be positioned and clamped through an ejector rod, the plate is fixed to the ejector rod through a compression nut on the ejector rod, and then the positioning ...

Pretreatment device for silkworm egg microparticle virus detection

The invention discloses a pretreatment device for silkworm egg microparticle virus detection, and relates to the technical field of silkworm egg pebrine detection.The pretreatment device comprises a mounting plate, an adjusting assembly is arranged on the mounting plate, a vibration assembly is arranged on the adjusting assembly, a bearing assembly is arranged on the vibration assembly, and a crushing assembly is connected to the bearing assembly; the vibration assembly comprises a base plate, rotating seats are oppositely arranged at the bottom of the base plate, first rotating shafts and second rotating shafts are movably connected into the rotating seats, supporting blocks are arranged on the upper portion of one side of the mounting plate, the upper ends of the supporting blocks are fixedly connected with the first rotating shafts, and a plurality of electric telescopic rods are arranged on the upper portion of the other side of the mounting plate. The bearing assembly comprises a bearing ...

Positioning and clamping die for long rod piece

The invention discloses a positioning and clamping die for a long rod piece. The positioning and clamping die for the long rod piece comprises a base, wherein a supporting table and a supporting frame are fixed to the base, a workpiece supporting surface is formed on the upper end face of the supporting frame, a horizontal positioning pin is arranged on the supporting frame, a workpiece is limited through the positioning pin on the supporting frame, and one end of the workpiece is placed on the supporting frame through the workpiece supporting surface; on the supporting table at the other end, a pressing stud is driven to move by rotating a rotary wheel, and a clamping block is driven by the pressing stud to move close to the workpiece so as to clamp the workpiece. Positioning and clamping in the horizontal direction are achieved through the positioning pin and the clamping block, and positioning and supporting in the vertical direction are achieved through the supporting frame and a supporting ...

Ultra-low temperature application traction inverter

The invention relates to an inverter, in particular to an ultra-low temperature application traction inverter. The ultra-low temperature application traction inverter solves the problem that the existing inverter can not work normally under ultra-low temperature conditions. The ultra-low temperature application traction inverter comprises an inverter circuit and a control circuit, wherein the control circuit comprises a DSP control module, a logic processing module, a signal processing module and a communication module, the input end of the DSP control module is respectively connected with the output end of the logic processing module, the output end of the signal processing module and the signal transmission end of the communication module, the input end of the logic processing module is connected with an input-output module, the output end of the DSP control module is respectively connected with a driving module and a heating control module, and the output end of the heating control module ...

Cobalt (II) metal complex taking oxidized iso-aporphine ramification as ligand as well as synthetic method and application thereof

The invention discloses a cobalt (II) metal complex taking an oxidized iso-aporphine ramification as a ligand as well as a synthetic method and application thereof. The cobalt (II) metal complex is obtained by dissolving 4,6-bis-(2-pyridyl)-5,6-dihydro-4H-1,5-diaza-benzo [de] cyclopentane [b]-8-anthracenone and cobalt chloride hexahydrate (II) into a polar solvent and then carrying out complexing reaction through mixing and can be particularly synthesized through a solution method or a solvothermal method. The inventor discovers that the cobalt (II) metal complex disclosed by the invention has in-vitro antitumor activity outstandingly higher than that of the ligand by observing the proliferation inhibition activity of the cobalt (II) metal complex on multiple human tumor cell strains; in addition, an in-vivo tumor inhibition experiment of a nude mouse bearing the tumor shows that PPCA-Co(II) has good tumor inhibition effect on a nude mouse model of a human hepatocarcinoma cell BEL-7402.

Special-shaped pipe joint locating device

The invention discloses a special-shaped pipe joint locating device so as to locate a work-piece accurately and stably. The special-shaped pipe joint locating device comprises a clamp body which is provided with a working table used for locating the bottom face of the work-piece. The clamp body is in an L shape after being turned over horizontally. The working table is located above the horizontal transverse edge of the clamp body. A transverse rocking rod is arranged above the vertical edge of the clamp body and hinged to a support. The support is connected above the vertical edge of the clamp body in a threaded mode. An upper clamping claw for locating the upper surface of the work-piece is hinged to the middle of the rocking rod. A side clamping claw is hinged to the end of the transverse edge of the clamp body in the side direction. A clamping part of the side clamping claw corresponds to the side direction of the work-piece. A pulling rod is hinged to the free end of the rocking rod ...