Novel revolved body drag reduction experimental model for water tunnel experiment

The invention discloses a novel revolved body drag reduction experimental model for a water tunnel experiment, which is processed by sections and supported on the rear section. The experiment model consists of a head curve section, a cylindrical section, a supporting section and a tail cone curve section. A ridge-like structure is processed on the outer surface of the cylindrical section. The experimental model is supported on the rear section and the supporting section of the model is fixedly connected with a support. Screw threads which are easy to realize are connected between the model head curve section and the cylindrical section, between the cylindrical section and the supporting section, and between the supporting section and the tail cone curve section. The model avoids positioning and clamping errors caused by replacing the model in the process of the experiment of the whole experimental model, reduces the influences of support bars on the flow field of the ridge-like surface, ...

Corridor floor adjustable support structure

The invention discloses a corridor floor adjustable support structure comprising a clamping groove, a movable supporting beam and an assembling seat. The middle segment of the movable supporting beam is connected to a first nut in a screwed manner, the top of the movable supporting beam is clamped in a clamping groove, the bottom of the movable supporting beam is connected to the assembling seat in a screwed manner, and the movable supporting beam is screwed tightly at the top of the assembling seat through a nut. The structure has the advantages that the size is small, parts can be modularized, space is saved and cost is reduced effectively, the space for assembling other equipment of a machine is expanded, and the other equipment can be assembled more conveniently; the structure can be adjusted vertically, the corridor floor can be guaranteed being flat after assembling, the defects of a traditional floor can be overcome, and the floor can be assembled in a flat manner attractively.

AUTONOMOUS UNDERWATER VEHICLE (AUV) LAUNCH AND RECOVERY DEVICE DRIVEN BY ELASTIC LINKAGE MECHANISM FOR EXTRA-LARGE UNMANNED UNDERWATER VEHICLE (XLUUV)

The present disclosure relates to an autonomous underwater vehicle (AUV) launch and recovery device driven by an elastic linkage mechanism for an extra-large unmanned underwater vehicle (XLUUV). The AUV launch and recovery device includes a hydraulic device, a push plate and a tubular device box, where the tubular device box adopts a frame-type tubular structure with a closed end; the push plate is fixed to a hydraulic rod, the hydraulic rod is controlled to stretch, and furthermore, the push plate is controlled to radially slide in a groove; and as the push plate is controlled to move radially, an inner diameter of a ring part of the inelastic linkage rope is narrowed or enlarged, so that inelastic hauling ropes are pulled to move axially, and the front end of the elastic rubber plates is further pulled to achieve an expanding or contracting state of an recovery/launch opening.

Vertical shaft wind power generation impeller with belt wheel mechanism

The invention relates to a vertical shaft wind power generation impeller with a belt wheel mechanism. The vertical shaft wind power generation impeller mainly comprises a main shaft, an upper support, a lower support, a first belt wheel mechanism, a second belt wheel mechanism, a first blocking plate, a second blocking plate, a third blocking plate, a fourth blocking plate, a first vane, a second vane, a third vane, a fourth vane and a movable base.

Novel pneumatic rapid fixture

The utility model provides a novel pneumatic rapid fixture, including two -way cylinder, clamp plate, round pin axle, support, base and extension spring, wherein the base is hollow tube -shape, and two -way cylinder is arranged in the inside cavity of base, and two piston rods of two -way cylinder stretch out to the left and right sides, and the end that stretches out of two piston rods supports respectively on the clamp plate of the left and right sides, the clamp plate of both sides respectively through pivort fixation on the support, the support then with base fixed connection, the clamp plate relative placement of both sides, the upper end of both sides clamp plate all is the crotch form, is used for pressing from both sides tight work piece with the cushion cooperation, connects through the extension spring between the lower tip of both sides clamp plate. The utility model discloses owing to introduce the clamp of two -way cylinder participation work piece and tightly move, consequently ...

Underwater glider kinematics and dynamics modeling method considering oil bag piston

The invention relates to an underwater glider kinematics and dynamics modeling method considering an oil bag piston, and belongs to the technical field of underwater gliders. Comprising the steps of establishing an inertia matrix, a mass center position, buoyancy, gravity and gravitational torque of static mass; establishing components of fluid viscous damping force and torque under a carrier coordinate system; deriving a component of buoyancy in a carrier coordinate system; deriving the components of the gravity and the medium moment in a carrier coordinate system; establishing momentum and momentum moment of each mass; establishing momentum and momentum moment of the underwater glider model; and finally, obtaining kinematics and kinetic equations of the underwater glider according to the derivation. According to the method, the oil bag is divided into the piston and the cavity for kinetic energy analysis, the influence of the piston and the cavity on the internal force of the underwater ...

Impeller of foldable-blade vertical shaft based on belt drive

The invention relates to an impeller of a foldable-blade vertical shaft based on belt drive. The impeller of the foldable-blade vertical shaft based on the belt drive comprises a bearing base, a spindle, an upper blade bracket, a lower blade bracket, four groups of gear sets, four groups of stop rods, four outer blades, four inner blades and two belt drive sets. The blades of the impeller are regularly rotated while revolved around an axis, the positions of the blades are changed so that the blades are expanded as the plate in the windward direction, the windward area is increased, and the received driving torque is improved; and the blades are folded against the wind, the headwind resistance is reduced, so the impeller of a blower has better self-startability, and higher generating efficiency.

Self-locking floating clamp

The invention relates to a self-locking floating clamp and belongs to a tool. The structure of the self-locking floating clamp includes that a support is in threaded connection with one end of a positioning shaft, the other end of the positioning shaft is provided with a three-piece elastic chuck structure, a left pressure plate is coaxially arranged on the outer circumference of the positioning shaft, and a right pressure plate is coaxially arranged on the outer circumference of the left pressure plate; the outer circumference of the end of the left pressure plate is provided with an outer thread, a locking nut is connected with the left pressure plate in a threaded manner, one end of the positioning shaft is sequentially provided with a conical hole and a threaded hole from outside to inside, the axis of the locking nut is provided with a cavity, a conical column and a threaded column are sequentially arranged at one end of a self-locking screw, the conical column is matched with the ...

Shaking generation device for underwater glider

The invention discloses a shaking generation device for an underwater glider. The device collects mechanical energy which is generated by wave motion by utilizing rotation of an eccentric shaft on an input shaft of a gliding generator and translation of the gliding generator, and converts the collected mechanical energy into electric energy for the underwater glider through the generator, so thatthe problem of energy supply of the underwater glider is fundamentally solved. The device collects the mechanical energy generated when the under glider shakes in rolling and pitching directions, so the conversion efficiency is high; the whole body of the device has a cylindrical appearance, and the structure is compact, so the device can be used as an independent mechanism to directly load a rotary type underwater glider.

Rotary twister with carbon-fiber plane

A rotary twister with carbon-fiber plane comprises a motherboard on which trundles, supports, an apparatus cabinet and vertical columns I and II are arranged; a revolving arm is mounted on the vertical column I, and an operation box, a counter and a tension controller are arranged on the revolving arm; a support seat is arranged on the vertical column I and a reducing motor is arranged on the support seat; a clutch, a bearing I and a transmission shaft are arranged inside a casing; a plane left-template and a boss right-template are arranged at the right end of the transmission shaft and fastened by lock nuts and planet hand wheels I and II; a base I, a gum groove, a tension detector and guiding wheels I and II are arranged on the apparatus cabinet, wherein the guiding wheel II and an adjustable supporting arm are arranged on the base I, and then the guiding wheel I is arranged; a gumming wheel is arranged in the gum groove; a supporting arm II is arranged on the vertical column II, a roller ...

Manual rapid binding clasp

The invention relates to a manual rapid binding clasp. Press plates are arranged on two sides of a positioning support, the press plate on one side is movably connected with a cam handle, the press plate on the other side is provided with a locking device, a symmetrical-structure U-shaped connecting frame, a pull spring and a force transmission shaft are sequentially arranged on the positioning support along the central line of the positioning support from top to bottom, the two ends of the force transmission shaft make contact with the cam handle and the locking device respectively, and the two ends of the pull spring and the two ends of the U-shaped connecting frame are fixedly connected with the press plates on the two sides respectively. The manual rapid binding clasp can simultaneously clamp two parts, shorten clamping time and improve work efficiency and is safe and reliable.

Vertical axis wind power generation impeller comprising flexible blades

The invention relates to a vertical axis wind power generation impeller comprising flexible blades. The vertical axis wind power generation impeller is mainly formed by a main shaft, an upper support, a lower support, a first baffle plate, a second baffle plate, a third baffle plate, a fourth baffle plate, a first blade, a second blade, a third blade, a fourth blade and a flexible base.

Elastic piece type expansion clamp

The invention relates to an elastic piece type expansion clamp. The outer periphery of a stepped mandrel is connected with a positioning sleeve, a left elastic piece, a right elastic piece, a retaining plate and a push plate. The left elastic piece and the right elastic piece are disposed on two sides of the positioning sleeve. The retaining plate is fixedly connected to the outer end face of the right elastic piece. The push plate is fixedly connected to the outer end face of the retaining plate. A locking device is disposed on the outer end face of the push plate and fixedly connected with the mandrel. Due to the fact that an elastic piece inner expansion positioning clamp structure is used, clamping and centering are completed at one step. The elastic piece type expansion clamp is high in positioning precision, low in manufacturing cost, fast in clamping, capable of clamping large parts, and safe and reliable.

Electric screw driver with adjustable rotating speed

The invention discloses an electric screw driver with an adjustable rotating speed. The electric screw driver is composed of a motor, a combined gear train decelerator and a cutter bar driving shaft, wherein the combined gear train decelerator is located in the middle of the electric screw driver; the motor is mounted behind the combined gear train decelerator; the cutter bar driving shaft is fixed in front of the combined gear train decelerator and is fixedly connected to a cutter bar; the cutter bar is changeable. When an output power of the motor is changeless, the combined gear train is utilized to change force at high rotating speed and low torque output by the motor into force at low rotating speed and great torque so as to be provided to the cutter bar; furthermore, a transmission ratio can be changed in the motor rotation process, gear can be shifted and speed can be changed at any time, and no rigid compact exists among gears during the gear shifting process. According to the practical ...

Accurately rotating and positioning device

The invention relates to an accurately rotating and positioning device, a plurality of concentric circular orbit electrodes (14) are fabricated on an electrode plate, fractures (15) are marked on the adjacent electrodes (14) sequentially; and all the electrodes are provided with orbit connecting points (17) which are connected with the electrodes (14) through leads. The surface of a sliding multiple contact electric brush (9) contacts with the surface of the electrode plate (10), the outer circumference surface of a sliding ring contacts with a fixed electric brush (5); a sliding ring (6) is connected with the sliding multiple contact electric brush (9) through a lead (7); the electrode plate (10) is fixed on a motor (1), and the lower end of the electrode plate (10) is provided with a connection plug (7); and the motor is externally connected with an electrode (3) B and the fixed electric brush (5). When the connection plug is connected, the motor starts to work and at last leads the sliding ...

Quick pneumatic cam clamping device

The invention discloses a quick pneumatic cam clamping device comprising a base, a rotary cylinder arranged on the base, a double-sided cam mounted on the cylinder and push rods. The push rods are located on two sides of the double-sided cam and movably connected with the base, one end of each push rod is in contact connection with the double-sided cam, pressing plates are arranged on two sides of the base and movably connected with supports which are fixedly connected on the base, one end of each pressing plate is a clamping part, the other end of each pressing plate is movably connected with the other end of the corresponding push rod, and a return spring is arranged on each pressing plate and between one side close to the clamping part and the position corresponding to the base. The clamping apparatus can improve production efficiency significantly, is applicable to batch production and has the advantages of high clamping force, rapid action, convenience in operation and the like.

Novel intermittent transmission mechanism

The invention relates to a novel intermittent transmission mechanism. A motor is arranged at one end of a base; a bracket is arranged at the inner side of the motor; a spline shaft is movably connected between the bracket and a vertical plate at the other end of the base; the horizontal end of the spline shaft is movably connected with the motor through a belt wheel and a belt; the spline shaft coaxially fits a worm rod; an output worm wheel is engaged above the worm rod; a worm wheel shaft of the output worm wheel is coaxially connected with the base; the worm rod is coaxially connected with a cam; a slide way is formed in the cam; a roller for supporting the bracket is arranged on the base, and is positioned in the slide way of the cam; and a spiral angle of one section of the slide way of the cam is alpha angle. The transmission mechanism is suitable for a transmission mechanism needing intermittent transmission in the automatic production process, and has the advantages of simple structure ...

Accurately rotating and positioning device

The invention relates to an accurately rotating and positioning device, a plurality of concentric circular orbit electrodes (14) are fabricated on an electrode plate, fractures (15) are marked on the adjacent electrodes (14) sequentially; and all the electrodes are provided with orbit connecting points (17) which are connected with the electrodes (14) through leads. The surface of a sliding multiple contact electric brush (9) contacts with the surface of the electrode plate (10), the outer circumference surface of a sliding ring contacts with a fixed electric brush (5); a sliding ring (6) is connected with the sliding multiple contact electric brush (9) through a lead (7); the electrode plate (10) is fixed on a motor (1), and the lower end of the electrode plate (10) is provided with a connection plug (7); and the motor is externally connected with an electrode (3) B and the fixed electric brush (5). When the connection plug is connected, the motor starts to work and at last leads thesliding ...

Ridged flow-field test slab model

The invention discloses a ridged flow-field test slab model, which comprises a head, a test slab, a support rod and a connecting piece, wherein the surface of the test slab is processed into two ridged structures with different sizes and shapes; the head is aligned with the test slab through a wedge slot, the connecting piece is arranged at the connecting position of the head and the test slab, and screws are respectively screwed into the head and the test slab through the connecting piece so as to ensure the head and the test slab are connected closely; and the support rod is inserted into athrough hole of the test slab so as to ensure the direction of the long axis of a diamond section of the support rod is consist with the axial direction of the test slab, and then the bearing rod is fixedly connected with the test slab through nuts. The ridged flow-field test slab model has the advantages of eliminating the influence of gravitational field by flatly arranging the slab model in the water ...

Vertical-shaft impeller with foldable blades on basis of fixture block mechanism

The invention relates to a vertical-shaft impeller with foldable blades on the basis of a fixture block mechanism. The vertical-shaft impeller comprises a bearing block, a spindle, an upper blade support, a lower blade support, four gear sets, four retaining rods, four fixture block sets, four outer blades and four inner blades. When the blades rotate around the shaft or regularly rotate automatically, the positions of the blades can be changed; when windward, the blades are unfolded to be flat plates, windward area is enlarged, and stressed rotation torque is increased; when against the wind, the blades are foldable, and headwind resistance is reduced, so that the fan impeller has better self-starting performance and higher power generation efficiency.

Flexible assembly fixture

The invention relates to a flexible assembly frock, which is a frock for assembling structural parts of an aircraft. The flexible assembly frock is characterized by consisting of a spliced assembly frame, a driving and revolving mechanism, automatic drilling equipment and a pneumatic positioning and clamping mechanism, wherein the spliced assembly frame is arranged on the driving and revolving mechanism; the automatic drilling equipment is arranged on the ground; the pneumatic positioning and clamping mechanism is arranged on both sides of the spliced assembly frame; the spliced assembly frameconsists of long-slot three-dimensional profile steels, 45 DEG slotted three-dimensional profile steels, short-slot three-dimensional profile steels, a positioner, a pneumatic clamper, a clamping plate, chute three-dimensional profile steels, a positioning shaft and hand wheels; the driving and revolving mechanism consists of a baffle plate, a bearing I, a base, a bearing II, a rotating shaft, aconnecting ...

Aircraft water entry impact simulation nonlinear data processing method and application

The invention relates to a non-linear data processing method for underwater impact simulation of an aircraft and application of the non-linear data processing method, and non-linear data such as impact load, pressure and stress obtained by simulation are processed by combining instantaneous modal analysis of underwater impact, Butterworth low-pass filtering and an ensemble empirical mode decomposition (EEMD) method. The method comprises the following steps: firstly, decomposing original data by using EEMD (Ensemble Empirical Mode Decomposition) to obtain IMF components of all orders, recombining low-frequency IMF components to obtain a filtered result, then filtering the original data by selecting a proper low-pass filtering frequency through water impact instantaneous modal analysis, and finally, comparing and analyzing the low-pass filtering result and the result of each recombined IMF to obtain a final result. And finally, selecting a proper recombination result as a final filtering ...

Mining dump truck back -lit lamp fixing seat structure

The utility model discloses a mining dump truck back -lit lamp fixing seat structure, including lamp body and adjustment seat, the lamp body is the hexahedron structure of an open -ended, and it has athrough wires hole I to locate to open with the center of arbitrary opening facial features vertically, and adjusting plate, mounting panel and hollow side pipe are drawn together to the adjustment stationary ladle, the center department of mounting panel opens has a through wires hole II, and the center department of adjusting plate opens there is a through wires hole III, and the II peripheralmounting panels of an opening face and through wires hole of square pipe weld mutually, and the III peripheral adjusting plates of another opening face and through wires hole of square pipe weld mutually, the mounting panel passes through the fastener rigid coupling at the on -board, and what the lamp body was rotatable installs on the adjusting plate. The utility model discloses can adjust the angle ...

High-precision balance for measuring resistance of water tunnel

The invention discloses a high-precision balance for measuring the resistance of a water tunnel, which comprises a balance bracket, an elastic deformation girder, a rigid connecting bracket, a non-magnetic beam, a magnetic telescopic displacement sensor, a magnetic needle and a sensor-mounting bracket. The resistance-measuring balance bracket and the sensor-mounting bracket are connected with a water tunnel cover plate, an M20 external bolt at the right end of the elastic deformation girder penetrates through a Phi 20 through hole on the balance bracket and fastened and connected by an M20 nut, the rigid connecting bracket and the elastic deformation girder are connected by two M6 bolts, and the magnetic needle is inlaid in a small hole at the left end of the non-magnetic beam in an interference way. The displacement of the small magnetic needle is measured by magnetic telescopic displacement sensor to indirectly measure the resistance of a water tunnel experimental model, and the high-precision ...

Vertical axis ocean current power generation device provided with unfolding mechanisms and used for underwater vehicle

Disclosed is a vertical axis ocean current power generation device provided with unfolding mechanisms and used for an underwater vehicle. Two vertical axis ocean current power generation devices are installed on a shell of the underwater vehicle, two crank driving rods are connected with two screw nuts through two screws respectively, and one parallelogram-shaped unfolding mechanism is formed by a blade, two cranks and an impeller shell. The blades rotate around the central axes under the impact of incoming flow, lift forces L and resistance forces D borne by the blades at different azimuth angles are different, tangential force driving rotation shafts to rotate is generated to enable the blades, a supporting mechanism and a power generation device support to rotate around the longitudinal axis of the underwater vehicle, winding stators are driven to rotate to cut permanent magnet rotors to generate induced electromotive force, and therefore kinetic energy of ocean currents is converted ...

Inner-hole positioning and clamping device

The invention discloses an Inner-hole positioning and clamping device comprising a base provided with a through hole inside. A mandrel is arranged in the through hole, the lower end face of the mandrel is provided with an equivalent conical surface, the base corresponding to the equivalent conical surface is provided with a plurality of through holes I communicated with the through hole, the through holes I are provided with positioning shafts I, a key groove is formed in the middle of the mandrel, a screwed hole communicated with the through hole is formed in the base corresponding to the key groove, a locking screw penetrates the screwed hole to match with the key groove, the upper end of the mandrel is provided with a locking nut, the lower end of the locking nut is provided with an inverted conical surface, the locking nut matches with the mandrel in a screwed manner, and a plurality of through holes II communicated with the through are formed in the base corresponding to the inverted ...

Asynchronous interaction cluster regulation and control method based on spontaneous synchronization algorithm

The invention relates to an asynchronous interaction cluster regulation and control method based on a spontaneous synchronization algorithm, and the method comprises the steps: describing an asynchronous interaction problem through a mathematical language, and determining whether a cluster is asynchronous interaction or synchronous interaction through the initial interaction moment of a cluster robot; in combination with the characteristics of an actual platform, a pulse coupling synchronization algorithm is used on a cluster robot platform, interaction pulse signals of individuals in a cluster serve as a coordination mechanism, and therefore in a distributed cluster without a synchronous clock, asynchronous interaction of the whole cluster is spontaneously converted into synchronous interaction; a self-organizing synchronization algorithm is applied to an asynchronous interaction cluster robot system, gradual synchronization of interaction moments of distributed cluster robots is achieved ...

Shape-preserving launching elastic tongue locking and releasing mechanism, underwater glider and method

The invention discloses a shape-preserving launching elastic tongue locking and releasing mechanism, an underwater glider and a method, and belongs to the field of underwater gliders for AUVs (Autonomous Underwater Vehicles). The locking and releasing mechanism is installed in an AUV carrying cabin, is arranged opposite to a positioning hole in an AUV and comprises an elastic tongue locking part and an unlocking power part. The elastic tongue locking part comprises an elastic tongue and a reset spring which are coaxially arranged, and the head part of the elastic tongue is provided with an inclined guide surface; under the action of the reset spring, the elastic tongue retracts through extrusion of external force, and after the external force is eliminated, the elastic tongue resets and enters a positioning hole in the AUV, so that the locking action is completed; the unlocking power part is connected with the elastic tongue of the elastic tongue locking part and can drive the elastic tongue ...

High-precision balance for measuring resistance of water tunnel

The invention discloses a high-precision balance for measuring the resistance of a water tunnel, which comprises a balance bracket, an elastic deformation girder, a rigid connecting bracket, a non-magnetic beam, a magnetic telescopic displacement sensor, a magnetic needle and a sensor-mounting bracket. The resistance-measuring balance bracket and the sensor-mounting bracket are connected with a water tunnel cover plate, an M20 external bolt at the right end of the elastic deformation girder penetrates through a Phi 20 through hole on the balance bracket and fastened and connected by an M20 nut, the rigid connecting bracket and the elastic deformation girder are connected by two M6 bolts, and the magnetic needle is inlaid in a small hole at the left end of the non-magnetic beam in an interference way. The displacement of the small magnetic needle is measured by magnetic telescopic displacement sensor to indirectly measure the resistance of a water tunnel experimental model, and the high-precision ...

High-strength pressure-accumulation film multi-point stretcher

The invention provides a high strength pressure buildup membrane multipoint stretcher used for multipoint stretching a high strength pressure buildup membrane, the middle part of which is silk cloth and both surfaces of which are coated with glue. In the stretcher, a caster, an adjusting sizing block, a bracket, a switch bracket, an upright post, a dust proof cover and a handlebar are arranged onabottom plate of a cart, a braking motor is directly connected with a reducer and arranged on the bottom plate of the cart by the sizing block, the bracket is provided with an ascending limitation pro ximity switch, the switch bracket is provided with a low-position proximity switch and a limitation low-position proximity switch; an output shaft of the reducer has the upper end provided with a locking screw rod and a descending switch baffle and the lower end provided with an ascending switch baffle; a transverse mounting plate is fixed on the upright post by a clamping collar, a pulley bracketis ...

Vertical axis draught fan impeller based on bevel gear transmission

The invention relates to a vertical axis draught fan impeller based on bevel gear transmission. The vertical axis draught fan impeller comprises a main shaft, a first bearing pedestal, a first baffle, a second baffle, a first bevel gear, a second bevel gear, a second bearing pedestal, a third bevel gear, a fourth bevel gear, a first blade, a second blade, a third blade and a fourth blade. The positions of the blades can be changed through regular rotation when the impeller blades rotate around the axis, and a draught fan has the good self-starting performance and high power generation efficiency.

Novel revolved body drag reduction experimental model for water tunnel experiment

The invention discloses a novel revolved body drag reduction experimental model for a water tunnel experiment, which is processed by sections and supported on the rear section. The experiment model consists of a head curve section, a cylindrical section, a supporting section and a tail cone curve section. A ridge-like structure is processed on the outer surface of the cylindrical section. The experimental model is supported on the rear section and the supporting section of the model is fixedly connected with a support. Screw threads which are easy to realize are connected between the model head curve section and the cylindrical section, between the cylindrical section and the supporting section, and between the supporting section and the tail cone curve section. The model avoids positioning and clamping errors caused by replacing the model in the process of the experiment of the whole experimental model, reduces the influences of support bars on the flow field of the ridge-like surface, ...

Rotary type fixture apparatus

The invention discloses a rotary tool device, which is used when assembling airplane parts and consists of a precise revolving platform, a left fixing and clamping mechanism, a right fixing and clamping mechanism, a drive mechanism and a jig which is arranged on the precise revolving platform; the drive mechanism is arranged under the jig, and the left fixing and clamping mechanism and the right fixing and clamping mechanism are arranged at two sides of the drive mechanism; the precise revolving platform has the following structure: a bearing II is respectively arranged at the upper end and the lower end of a base, a bearing I is arranged inside the base that is arranged on a baffle and fixed by a stone bolt, a rotary shaft is arranged inside the base, and a connecting plate is arranged on the rotary shaft; the drive mechanism has the following structure: a drive wheel is arranged inside a wheel fork, an electric drive motor is arranged on the wheel fork and connected with the drive wheel ...

Cluster self-organizing defense method for protected target to participate in cooperation

The invention relates to a self-organizing defense method for a protected target to participate in cooperation, bidirectional cooperation of a defense cluster and the protected target is considered, and the defense cluster realizes self-organizing defense of the protected target based on an improved social force model and comprises three acting forces of an intra-group interaction item, an inter-group confrontation item and a target defense item. And meanwhile, the security target realizes situation awareness based on the improved dynamic Bayesian network, so that a corresponding strategy is selected to balance the two requirements of avoiding attacks and arriving at an end point. Wherein the threat levels are divided into low, middle and high levels, and strategies corresponding to the three threat levels also reflect the degree of the protected target participating in cooperative defense. Through cooperation of self-organized defense of the defense cluster and cooperative defense of the ...

Underwater vehicle fin rudder optimization device based on steady active flow control

The invention provides an underwater vehicle fin rudder optimization device based on steady active flow control, and relates to the technical field of underwater vehicles, the underwater vehicle fin rudder optimization device comprises an active flow control system and a plurality of injection and suction execution mechanisms, and the surface of a fin rudder is provided with a plurality of injection and suction ports. The spraying and sucking executing mechanism is arranged at the spraying and sucking opening and can spray fluid to the outside of the fin rudder through the spraying and sucking opening and suck external fluid into the fin rudder through the spraying and sucking opening, and the active flow control system controls the spraying and sucking executing mechanism to spray the fluid outwards or suck the fluid inwards. The jet-suction executing mechanisms are arranged at different parts of the fin rudder, and flow control targets of different parts of the fin rudder of the underwater ...

Direct driving vertical axis current power generation devices for underwater vehicle

Provided is direct driving vertical axis current power generation devices for an underwater vehicle. Two vertical axis current power generation devices are arranged on an underwater vehicle shell, and the installation directions of the two vertical axis current power generation devices are opposite. Generators are fixedly arranged in central shafts through winding stators. Threes blades are arranged at the top end of a telescopic mechanism in each vertical axis current power generation device, and the blades rotate around the central shafts under the impact of coming flows and generate tangential force driving rotating shafts to rotate, so that the blades, the telescopic mechanisms and power generation device supports rotate around the longitudinal axis of the underwater vehicle to drive inner gears connected the impeller shells to rotate and further drive outer gears and the power generators to rotate, and kinetic energy of ocean current is converted into electric energy used by the underwater ...

Articulated bearing automatic assembling machine

The invention relates to a joint bearing automatic assembly machine. A lower protective cover and a movable support are arranged on the base of the body, a upper protective cover is arranged on the lower protective ; a lower support of the telescopic mechanism is arranged on the lower protective cover; a lead rail, a cylinder are arranged on the lower support through a cylinder support, a pallet is arranged in a sliding plate, a baffle is arranged on the pallet, a piston rod for cylinder is connected with the sliding plate through a hinged piece; an upper support of the pressure transmission mechanism is arranged on the lower protective cover, an upright column is arranged on each of the upper support and the lower support, a gas-liquid conversion device is arranged on the upper support, the gas-liquid conversion device is connected with a transmission shaft, a sliding bearing is arranged on the transmission shaft, a support is fixed on the upper support, guidance keys are arranged in the ...

Clinometer calibration stand

The invention relates to a clinometer calibration stand. Adjustable landing legs are arranged at the bottom of a three-leg support frame, an upright column is arranged on the three-leg support frame, a mandrel is coaxially arranged in the axial center of the upright column, a rotary table is arranged above the mandrel, and a Y-axis vernier angle caliper is arranged at the periphery of the rotary table; a square supporting seat is connected to and positioned above the rotary table, a transmission shaft penetrates through the square supporting seat to be connected with a rotating disc large gear, a gear supporting seat of an adjusting small gear is arranged above the square supporting seat, the adjusting small gear is meshed with the rotating disc large gear, and an X-axis vernier angle caliper is arranged on the gear supporting seat; a U-shaped connecting frame is arranged at the other side of the transmission shaft, and a Z-axis vernier angle caliper is erected on the U-shaped connecting ...

Underwater magnetic resonance type wireless power transmission maximum power tracking method

The invention discloses an underwater magnetic resonance type wireless power transmission maximum power tracking method, thereby solving a technical problem of low transmission efficiency in the prior art. According to the technical scheme, sampling voltages and output powers at adjacent times are respectively compared; validity determination and maximum power processing are carried out on comparison results; and then the results are used for adjusting a duty ratio D of a PWM signal, thereby controlling a switching tube of an impedance transformer and adjusting a characteristic impedance of a receiving terminal. Therefore, the whole system is in an impedance matching state all the time. According to the invention, when the output power of the system transmission system is changed drastically due to high sea water fluctuation, rapid tracking is carried out, thereby guaranteeing real-time impedance matching of a transmitting terminal and a receiving terminal and realizing an optimal output ...

Gear mechanism based self-rotation blade impeller

The invention relates to a gear mechanism based self-rotation blade impeller. The gear mechanism based self-rotation blade impeller is mainly formed by a rotating cross support, four blades, a center shaft, a base, a primary bevel gear, four secondary bevel gears, eight transmission gears and four transmission shafts.

Intelligent resistance reduction device for underwater vehicle based on active deformation shell

The invention discloses an underwater vehicle intelligent drag reduction device based on an active deformation shell, and relates to the technical field of underwater vehicle drag reduction, the underwater vehicle intelligent drag reduction device comprises a flexible skin arranged on the surface of an underwater vehicle, the inner side of the flexible skin is provided with a liquid bubble module, and the volume of the liquid bubble module can be changed by pumping water; a sensor is arranged on the flexible skin, the sensor and the liquid bubble module are respectively connected with an electromagnetic controller arranged on the underwater vehicle, and the electromagnetic controller is connected with a power supply. The surface of the underwater vehicle is deformed by adjusting the volume of the vacuole, so that the surrounding flow field is changed to generate the transverse groove, the fluid speed in the groove is very low, the wall surface boundary layer is thick, the wall surface speed ...

Flexible assembly fixture

The invention relates to a flexible assembly frock, which is a frock for assembling structural parts of an aircraft. The flexible assembly frock is characterized by consisting of a spliced assembly frame, a driving and revolving mechanism, automatic drilling equipment and a pneumatic positioning and clamping mechanism, wherein the spliced assembly frame is arranged on the driving and revolving mechanism; the automatic drilling equipment is arranged on the ground; the pneumatic positioning and clamping mechanism is arranged on both sides of the spliced assembly frame; the spliced assembly frame consists of long-slot three-dimensional profile steels, 45 DEG slotted three-dimensional profile steels, short-slot three-dimensional profile steels, a positioner, a pneumatic clamper, a clamping plate, chute three-dimensional profile steels, a positioning shaft and hand wheels; the driving and revolving mechanism consists of a baffle plate, a bearing I, a base, a bearing II, a rotating shaft, a connecting ...

Pushing type track snow cleaning device

The invention provides a pushing type track snow cleaning device, belongs to the technical field of public service maintenance operation in high-wind and high-snow areas, and is mainly used for track snow cleaning. The pushing type track snow cleaning device comprises a track walking part which comprises a frame and walking wheels; the snow cleaning shovel is arranged at the front end of the track walking part and is mounted on the frame; the snow breaking reamer is installed on the upper portion of the snow clearing shovel, a horizontal conveyor is arranged behind the snow breaking reamer, and an inclined conveyor is arranged at an outlet of the horizontal conveyor; and the rail web cleaning device is arranged at the tail part of the rail walking part. The snow removing device has the advantages of being high in snow removing efficiency and stability and capable of effectively removing ice on the rail waist.

Sistan fan propeller

The invention relates to a Sistan fan propeller. Two belt pulleys respectively sleeve a supporting frame and an eccentric rod and are connected together through a synchronous belt. Guide rings respectively and fixedly sleeve four supporting rods of the supporting frame, and the bottom ends of four blades are respectively arranged in guide grooves on the guide rings. The eccentric rod, a connecting rod and the blades form a crank slide block mechanism. Under the effect of wind, captured wind energy is transferred onto a connected generator by virtue of the rotation of the supporting frame, and meanwhile the guide rings are enabled to rotate synchronously with the blades. The blades can slide along the guide grooves on the guide rings, the blades are retracted when against the wind, and the resistance of a fluid is reduced under the effect of a guide cover. The blades can be unfolded when facing the wind, the windward area is increased, and the wind energy capturing efficiency is improved ...

Hydraulic underwater vehicle vertical shaft ocean current power generating device

Provided is a hydraulic underwater vehicle vertical shaft ocean current power generating device, wherein two vertical shaft ocean current power generating devices are respectively mounted on the shell of the vehicle, and the mounting directions of the two vertical shaft ocean current power generating devices are opposite. Three vanes are respectively mounted on the top end of each telescopic mechanism in the vertical shaft ocean current power generating devices; the vanes rotate around a central shaft under the impact of the incoming flow; the lift force and resistance suffered by the vanes are different in different azimuth angles; and tangential force which drives a spindle to rotate is generated for enabling the vanes, the telescopic mechanisms and power generating device brackets to rotate around the vertical axis of the underwater vehicle, so as to drive a permanent magnetic rotor to rotate and cut a winding stator in order to generate an induced electromotive force, thereby changing ...

Water surface cluster-oriented floating type omnidirectional mobile platform, method and application

The invention discloses a floating type omnidirectional mobile platform facing a water surface cluster, a method and application, and belongs to the technical field of cluster intelligence. Comprising a floating shell, a sensing decision module, a driving execution module and a power supply module, and through cooperation of all the modules and combination of a power distribution method, the omni-directional mobile platform capable of being used for verifying the open water surface environment-oriented cluster self-organizing motion algorithm is obtained. According to the invention, sensing, decision making and execution are integrated, and the 360-degree angle controllable steering engine and the camera module are used in a combined manner, so that the 360-degree environment information active sensing capability is realized; the sensing decision circuit board is internally provided with a cluster self-organizing motion control algorithm, the driving execution circuit board is internally ...

Underwater glider adaptive path planning method based on improved JADE algorithm

The invention relates to an underwater glider adaptive path planning method based on an improved JADE algorithm. The underwater glider adaptive path planning method comprises the following steps: firstly, establishing a two-dimensional plane coordinate system, and performing coordinate system conversion according to the positions of a starting point and a target point; secondly, a steady-state gliding model and an energy consumption model of the underwater glider are established, a gliding speed and energy consumption calculation method is obtained, and meanwhile the influence of ocean current on the underwater glider is considered; and then a parameter updating strategy of a scaling factor and a cross factor of the original JADE algorithm is improved, and the optimization capability of the JADE algorithm is improved. And finally, by taking the energy consumption cost as an optimization target, planning a series of path points and the optimal pitch angle and diving depth of each path section ...

Cluster robot system and method based on acoustic sensing processing

The invention relates to a cluster robot system and method based on acoustic sensing processing, and belongs to a neighbor identification orientation positioning method and system of an acoustic sensing processing system of a cluster robot, and the cluster robot system comprises a loudspeaker module, a microphone module, a main control board, a power supply module and an execution mechanism. The system is based on an acoustic perception positioning technology, an individual robot uses a loudspeaker to sequentially send out acoustic voice information with distinction degree, four microphone modules installed at the top are utilized to form a square microphone array, the microphone array is utilized to receive the acoustic information, different sound production individuals are recognized, and the sound production accuracy is improved. And calculating relative positions of neighbors relative to the neighbors, and then finishing cluster self-organizing motion. According to the invention, the ...

Horizontal axis ocean current power generation device for underwater vehicle

Disclosed is a horizontal axis ocean current power generation device for an underwater vehicle. The horizontal axis ocean current power generation device is symmetrically and fixedly arranged between a front aircraft segment and a middle aircraft segment. Three unfolding mechanisms are evenly distributed and arranged in grooves in the circumference of an impeller shell of a mounting support, and blades at the top ends of the three unfolding mechanisms stretch out of the impeller shell. The unfolding mechanisms are arranged in the grooves in the circumferential surface of the impeller shell; a winding stator of an electric generator is fixedly arranged on a central shaft; the blades are affected by ocean current torque; and the blades, the mounting support and a permanent magnet rotor of the electric generator rotate jointly around the longitudinal axis of the underwater vehicle, and therefore the permanent magnet rotor of the electric generator does the relative motion relative to the winding ...

Vertical-axis wind power generation impeller with parallel link mechanisms

The invention relates to a vertical-axis wind power generation impeller with parallel link mechanisms. The vertical-axis wind power generation impeller mainly comprises a main shaft, an upper support, a lower support, a first parallel link mechanism, a second parallel link mechanism, a first baffle, a second baffle, a third baffle, a fourth baffle, a first blade, a second blade, a third blade, a fourth blade and a mobile base.

Novel positioning connector

The invention provides a novel positioning connector, comprising a locking screw, a precise pin shaft and steel balls, wherein the precise pin shaft serves as a main component, the outer surface of the precise pin shaft is made into a high-precise cylinder surface, a threaded blind hole is turned in an inner hole of the precise pin shaft, the tail end part of the precise pin shaft is provided with a plurality of inverted conical round holes along the circumference, the steel balls are correspondingly assembled in the inverted conical round holes, the outer edges of the steel balls are higher than the outer surface of the precise pin shaft, the locking screw is made into a stepped shaft, the front end part of the locking screw is provided with an internal hexagonal wrench hole, the middle part of the locking screw is provided with threads, the rear end part of the locking screw is made into a conical shape, the locking screw and the precise pin shaft are simultaneously loaded into a hole ...

Ridged flow-field test slab model

The invention discloses a ridged flow-field test slab model, which comprises a head, a test slab, a support rod and a connecting piece, wherein the surface of the test slab is processed into two ridged structures with different sizes and shapes; the head is aligned with the test slab through a wedge slot, the connecting piece is arranged at the connecting position of the head and the test slab, and screws are respectively screwed into the head and the test slab through the connecting piece so as to ensure the head and the test slab are connected closely; and the support rod is inserted into a through hole of the test slab so as to ensure the direction of the long axis of a diamond section of the support rod is consist with the axial direction of the test slab, and then the bearing rod is fixedly connected with the test slab through nuts. The ridged flow-field test slab model has the advantages of eliminating the influence of gravitational field by flatly arranging the slab model in the ...

Underwater mechanical bionic flapping wing thruster

The invention discloses an underwater mechanical bionic flapping wing thruster which comprises the following five parts: a horizontal movement mechanism, a vertical movement mechanism, a tilting movement mechanism, a bionic flapping wing and a fixed base plate. A mechanical motion separating method is used in the thruster, for imitating the flapping wing three-dimensional motion by using a simple mechanical transmission mechanism from the perspective of Kinematics. The whole motion process of the mechanism is as follows: an offset crank block mechanism is driven to move by a motor so as to drive a horizontal slide block to move left and right in a horizontal slide block motion guide rail; meanwhile, a cam push rod mechanism is driven by the motor so as to drive a vertical slide block to move vertically relative to the horizontal slide block; the two motions are superposed for realizing the fitting of the tail motion locus of the flapping wing; and at the same time, the tilting moving mechanism ...

Articulated bearing automatic assembling machine

Novel transmission mechanism

The invention provides a novel transmission mechanism. The novel transmission mechanism comprises an input shaft, an intermediate shaft and an output shaft, wherein two mandrels I and II opposite in rotation direction are respectively installed at two ends of the input shaft through keys, the mandrel I is connected with a peripheral gear I in cup joint mode through a pin roller and a spring, the mandrel II is connected with a peripheral gear II in cup joint mode through another pin roller and another spring, end caps are respectively and symmetrically installed on two side faces of the mandrel I and the gear I and two side faces of the mandrel II and the gear II, the gear II is meshed with a gear III, the gear III sleeves the intermediate shaft, the gear III is meshed with a gear IV, the gear IV is installed at one end of the output shaft, and a gear V is installed at the other end of the output shaft. The novel transmission mechanism can be obtained by using two roller clutches opposite ...

Rotary twister with carbon-fiber plane

A rotary twister with carbon-fiber plane comprises a motherboard on which trundles, supports, an apparatus cabinet and vertical columns I and II are arranged; a revolving arm is mounted on the vertical column I, and an operation box, a counter and a tension controller are arranged on the revolving arm; a support seat is arranged on the vertical column I and a reducing motor is arranged on the support seat; a clutch, a bearing I and a transmission shaft are arranged inside a casing; a plane left-template and a boss right-template are arranged at the right end of the transmission shaft and fastened by lock nuts and planet hand wheels I and II; a base I, a gum groove, a tension detector and guiding wheels I and II are arranged on the apparatus cabinet, wherein the guiding wheel II and an adjustable supporting arm are arranged on the base I, and then the guiding wheel I is arranged; a gumming wheel is arranged in the gum groove; a supporting arm II is arranged on the vertical column II, aroller ...

Vertical axis fan impeller based on belt wheel transmission

The invention relates to a vertical axis fan impeller based on belt wheel transmission. The vertical axis fan impeller comprises a spindle, a bearing block, a first large belt wheel, a first small belt wheel, a long belt, a second large belt wheel, a baffle plate, a second small belt wheel, a short belt, a first blade, a second blade, a third blade and a fourth blade. When the blades of the impeller rotate around a shaft, the positions of the blades can be changed by regular rotation, so that a fan has fine self-starting performance and power generation efficiency.

Belt-driven folding blade type vertical axis fan impeller

The invention discloses a belt-driven folding blade type vertical axis fan impeller. A spindle is arranged on a bearing seat; blade supports are fixedly arranged at the upper end and the lower end of the spindle; four blade groups are positioned between the upper blade support and the lower blade support; a rotating shaft of each blade is provided with a gear group. When two symmetric blade groups are connected by a belt drive group and are enabled to synchronously rotate, and when one blade group is gradually closed, the other blade group gradually opens. According to the invention, the positions of the blades can be changed while the blades of the impeller rotate around the spindle, so that when the blades are unfolded into a flat plate when facing the wind, the face area is enlarged, and the rotating torque is improved; when the blades are folded into NACA wing type blades when being against the wind, the headwind resistance is reduced, so that the fan impeller can have better self-starting ...

Sensing-limited-oriented cluster robot extremely-simplified self-organizing diffusion method and system

The invention discloses a sensing-limited cluster robot-oriented extremely-simplified self-organizing diffusion method and system, and belongs to the technical field of robots. The method comprises the following steps: installing each single machine sensing module; a diffusion instruction is started, and a control center on a single machine triggers a motion execution module according to a signal sent by a sensing module; the motion execution module moves according to a simplified self-organizing diffusion model P = (vo, omegao, vl, L) until no sensing target exists in the sensing distance of all the robots in the cluster, and diffusion is completed; the problem of self-organizing diffusion of the cluster robot under the conditions of incapability of information exchange, no global positioning capability, extremely low sensing capability and extremely low robot computing capability in complex environments such as water is solved, whether a sensing target exists in a measuring range is taken ...

Elevator of projector

Aperiodic layered vibration isolator and design method

The invention relates to a non-periodic layered vibration isolator and a design method, the non-periodic layered vibration isolator comprises more than N groups of non-periodic unit structures which are connected in series, and each group of non-periodic unit structure comprises a rubber layer and a metal layer. The design method of the aperiodic layered vibration isolator comprises the following steps: determining a dynamic element stiffness matrix of each metal layer and rubber layer to obtain a vibration isolator element transfer matrix; determining that a total transfer matrix of the aperiodic layered vibration isolator is a product of N unit transfer matrixes, and analyzing characteristic values of the transfer matrixes of the vibration isolator to obtain wave propagation characteristics of the aperiodic layered vibration isolator; and the thickness HMi of each metal layer and the thickness HRi of each rubber layer of the aperiodic layered vibration isolator are adjusted, and the design ...

High-strength pressure-accumulation film multi-point stretcher

The invention provides a high strength pressure buildup membrane multipoint stretcher used for multipoint stretching a high strength pressure buildup membrane, the middle part of which is silk cloth and both surfaces of which are coated with glue. In the stretcher, a caster, an adjusting sizing block, a bracket, a switch bracket, an upright post, a dust proof cover and a handlebar are arranged on a bottom plate of a cart, a braking motor is directly connected with a reducer and arranged on the bottom plate of the cart by the sizing block, the bracket is provided with an ascending limitation proximity switch, the switch bracket is provided with a low-position proximity switch and a limitation low-position proximity switch; an output shaft of the reducer has the upper end provided with a locking screw rod and a descending switch baffle and the lower end provided with an ascending switch baffle; a transverse mounting plate is fixed on the upright post by a clamping collar, a pulley bracket ...

Connecting rod transmitting folding blade vertical shaft impeller

The invention provides a connecting rod transmitting folding blade vertical shaft impeller. A main shaft is arranged on a bearing base, blade supports are respectively and fixedly arranged at the upper end and the lower end of the main shaft, four blade units are respectively located between the upper blade support and the lower blade support, rotating shafts of all blades are respectively provided with gear units, the two groups of symmetrical blades can rotate synchronously through two connecting rod transmitting mechanisms which connect the two groups of symmetrical blades, and when one group of blades gradually closes, the other group of blades gradually open. The impeller blades rotate around the shaft and can change the positions of the blades, so that the blades can be unfolded as a plane board when facing the wind, the wind facing area is increased, the received rotating torque is improved, the blades can be folded and form NACA wing type blades when facing against the wind, the ...

Novel limit moment of torsion antioverloading device

The utility model relates to a novel limit moment of torsion antioverloading device, driving shaft pass through the both ends of the coaxial setting of driven shaft at the adapter sleeve, be equipped with threaded connection's adjustable nut on the driving shaft, be equipped with the spring between adjustable nut and the adapter sleeve terminal surface, be equipped with 90 degrees rectangular holes on the adapter sleeve, trundle I passes 90 degrees rectangular kong houyu driving shafts and connects, corresponding driven axle head at the adapter sleeve and being equipped with step circular arc transition face, be equipped with trundle II on the low surface of step circular arc transition face, trundle II is connected with the driven shaft. This overload device adopts spring and nut adjustable, the required moment of torsion of regulation of comparable accuracy, but automatic compensation can use for a long time after the wearing and tearing, and the specially adapted requires to have limited ...

Fan impeller with vertical shafts

The invention relates to a fan impeller with vertical shafts; the fan impeller comprises a spindle, a first short shaft, a second short shaft, a first vane, a second vane, a third vane, a fourth vane, a first baffle, a second baffle and a movable base; under the impact of the incoming flow, two pairs of the vertical vanes stand up and topple over alternatively. In the direction of the incoming flow, the upright vanes push the spindle to rotate under the impact action and the toppled vanes keep the short shaft for connecting with two vanes to be fixed under the action of a Z-shaped baffle. When the spindle rotates for 180 degrees, the leeward sides of the upright vanes face to the direction of the incoming flow, the posture of the vertical vanes exchanges with that of the toppled vanes and the process is repeated. The stressed area of the vanes in the direction of the clockwise flow reaches the maximum and the stressed area of the vanes in the direction of the anticlockwise flow reaches ...

Thermally glue injecting machine

The invention relates to a thermo glue-injecting machine which is a glue-injecting device used in the molding part technique for the molding of composite material in a closed mould. The thermo glue-injecting machine comprises an installing backing plate and an electronic scale, both installed on a dolly, a bottom plate installed on the dolly and provided with a heating device, and a heat preserving device which is provided with a heating pot that is provided with a pot lid fixing with locknuts on the upper end. A sealing ring is installed between the pot lid and the heating pot. A thermocouple, a vacuum tube, a pressure tube, a stirring apparatus, a glue outlet tube are installed on the pot lid; the thermocouple, the stirring device and the glue outlet tube are extended into the heating pot; an electric control cabinet is installed on the dolly. The thermo glue-injecting machine is movable and can be heated, which also has the advantages that the stirring enables homogenous heating; air ...

Foldable blade vertical axis impeller based on connecting rod transmission

The invention relates to a foldable blade vertical axis impeller based on connecting rod transmission. The foldable blade vertical axis impeller comprises a bearing pedestal, a main shaft, an upper blade support, a lower blade support, four gear sets, four blocking rods, four outer blades, four inner blades and two connecting rod transmission mechanisms. The positions of the blades can be changed through regular rotation when the foldable blade vertical axis impeller rotates around the axis; the blades can be unfolded to form a flat plate when facing the wind, the windward area is enlarged, and the borne rotation torque is increased; the blades can be folded when against the wind, the headwind resistance is reduced, and the draught fan impeller has the good self-starting performance and has the high power generation efficiency as well.

Vertical axis ocean current power generation device for underwater aircraft

A vertical axis ocean current power generation device for an underwater aircraft comprises two vertical axis ocean current power generation device bodies and a rotating joint. One vertical axis ocean current power generation device body is arranged between a front aircraft segment and a middle aircraft segment, and the other vertical axis ocean current power generation device body is arranged between the middle aircraft segment and a rear aircraft segment; and the ocean current power generation device bodies are coaxially and fixedly connected with the all segments of the aircraft through a central shaft of the rotating joint; and each ocean current power generation device body is provided with three telescopic mechanisms, and the top end of each telescopic mechanism is provided with a blade. When elongation of the blades is larger and the rotating radius is larger, the ocean current torque borne by the blades is larger, and the power generated by ocean current energy capture is larger.

Novel quick binding clasp

The utility model provides a novel quick binding clasp, regard as the support with the cuboid finished piece, it has two horizontal through -holes to open in the inside of support, two horizontal through -holes set up from top to bottom and are 90 crisscross and two horizontal through -hole intercommunications, through -hole above wherein being located is used for placing axle type part, it is used for placing left side clamp hoop to be located following through -hole, the right side presss from both sides hoop and dabber, make threadedly on half one on the left side of dabber, a left side presss from both sides half threaded connection on the left side of hoop and dabber, go up to the optical axis on half one on the right side of dabber, the right side presss from both sides half free sliding connection on the right side of hoop and dabber, the system had the arc surface on the left side clamp hoop and the right side pressed from both sides and bind round relative terminal surface, the ...

Compound material molding resin injection machine

The utility model relates to a compound material molding resin injection machine is equipped with vertical tubular structure's dustcoat on the bottom plate, be equipped with the inner cover in the dustcoat, is equipped with thermal -insulated felt between dustcoat and inner cover, inner chamber bottom at the inner cover is equipped with the support, connects the heating plate on the support, also is provided with thermal -insulated felt between heating plate and bottom plate, the heating cauldron of having taken a seat on the heating plate is equipped with the kettle cover on the heating cauldron, and the kettle cover passes through lock nut and dustcoat sealing connection, be equipped with gear motor in the axle center of kettle cover, the rotation axis that gear motor connects stretches into to the bottom of heating cauldron, and is equipped with the blade on the rotation axis, be equipped with the play rubber tube that stretches into to the bottom of heating cauldron on the kettle cover ...

High-frequency induction vacuum brazing equipment for duct

The invention relates to a catheter high-frequency induction vacuum brazing device, which is used in the process of catheter welding; the catheter high-frequency induction vacuum brazing device consists of a vacuum device, a vacuum welding box, a high-frequency welding electrical source device and a water cooling device; wherein, the vacuum device is provided with a small bracket mounting support and a large bracket mounting support, a vane pump is installed on the small bracket and is connected directly with a lobed element pump; the lobed element pump is installed on the large bracket, wherein the outlet of the lobed element pump is connected with a first valve and a second valve; the second valve is connected with a diffuser pump; a third valve is mounted on the diffuser pump; the bottom end of the diffuser pump is connected with the first valve; the diffuser pump is connected with the vacuum welding pump; the diffuser pump is installed on a pump support. A door, a window and a glove ...

Novel compensation backlash drive mechanism

The utility model provides a novel compensation backlash drive mechanism, including screw and lead screw, the screw is made open, divide into to go up screw and screw two parts down promptly, and goes up the screw and leave the clearance with screw down, and go up on the screw and the bilateral symmetry system that lies in lead screw the central axis has the through -hole, and the threaded hole of system on the position that corresponds on the lower screw and with above -mentioned through -hole is gone up the screw and is connected fixedly down between the screw through double -screw bolt and nut, and still the cover has the spring on the double -screw bolt, and the upper end of spring is to on the nut, and the lower extreme of spring is to on last screw. The utility model discloses owing to adopt the novel structure to having increased the spring on open screw and the screw, consequently can compensate the clearance of wearing and tearing and producing in lead screw and the screw transmission ...

High locked bolts pneumatic tool

The invention provides a high-lock bolt pneumatic tool which is an improved structure of the pneumatic tool which is locked by a high-lock bolt, in particular to an improved structure of a gun head, which solves the shortage that the existing pneumatic tool is not applicable for the work sites where the structure dimension is restricted; the high-lock bolt pneumatic tool is characterized in that the right end of a straight gun pipe component is prepared as a thread to be connected with a pneumatic drill main body; the left end of a gear shaft is prepared as a gear; the straight gun pipe component is internally provided with a sliding bearing; the gear shaft is arranged on the pneumatic main body; a gearbox is arranged on the straight gun pipe component; a transition gear is arranged on a transition gear shaft which is arranged on the gearbox; furthermore, a spring is arranged on the transition gear shaft and fixed by a press plate and a nut; the gear is arranged on the shaft which is arranged ...

Mechanical pipe supercharging apparatus

The invention provides a mechanical pipeline pressurizing device. The mechanical pipeline pressurization device comprises a shell (6), a one-way sealing plug (2), a liquid reservoir (4), a bearing baffle (5) and a power spring (8). The liquid reservoir (4) is made of a flexible material, arranged in one end of the shell, and equipped with a liquid inlet and a liquid outlet on a wall; the one-way sealing plug (2) is arranged in the inlet of the liquid reservoir (4), is matched with a swivel yoke (10) by a connection rod (12) and can rotate around the swivel yoke; two ends of the power spring (8) are respectively fixed on an end cover (7) and the bearing baffle (5) of the shell; an inlet pipeline (1) is connected with an upstream pipeline, and an outlet pipeline (3) is connected with a downstream pipeline or a pipeline outlet terminal. The device is suitable for terminal users of urban tap water supply system, can accumulate certain amount of fluid for the pipeline terminal users when the ...

Rotary type fixture apparatus

The invention discloses a rotary tool device, which is used when assembling airplane parts and consists of a precise revolving platform, a left fixing and clamping mechanism, a right fixing and clamping mechanism, a drive mechanism and a jig which is arranged on the precise revolving platform; the drive mechanism is arranged under the jig, and the left fixing and clamping mechanism and the right fixing and clamping mechanism are arranged at two sides of the drive mechanism; the precise revolving platform has the following structure: a bearing II is respectively arranged at the upper end and the lower end of a base, a bearing I is arranged inside the base that is arranged on a baffle and fixed by a stone bolt, a rotary shaft is arranged inside the base, and a connecting plate is arranged onthe rotary shaft; the drive mechanism has the following structure: a drive wheel is arranged inside a wheel fork, an electric drive motor is arranged on the wheel fork and connected with the drive wheel ...

Gear transmission based underwater vehicle vertical shaft current power generation device

The invention discloses a gear transmission based underwater vehicle vertical shaft current power generation device. Two vertical shaft current power generation devices are respectively installed on a vehicle casing; installation directions of the two vertical shaft current generation devices are opposite; an internal gear is fixed on the external end surface of an impeller casing end plate; external gears are fixed on shafts of the electric generators; the electric generators are symmetrically installed on the end surface at the middle section of the vehicle; three blades are respectively installed at top ends of extensible mechanisms; the blades rotate surrounding a center shaft under impact of incoming flows and generate tangential force which drive a rotary shaft to rotate and accordingly the blades, the extensible mechanisms and generation device supports rotate surrounding underwater vehicle longitudinal axes, the internal gear which is connected with an impeller casing is driven ...