网关外壳

Automatic pitched roof cutting method and control system for digging and anchoring integrated machine

The invention belongs to the technical field of roadway cutting, provides an automatic pitched roof cutting method of a digging and anchoring integrated machine and a control system, and solves the problem that pitched roof cutting and top anchor supporting cannot be synchronously operated when leftover coal is knocked off by using a tool before supporting. The digging and anchoring all-in-one machine is provided with two pitched roof cutting mechanisms for cutting pitched roofs; the inclined top cutting mechanism comprises an inclined top cutting head, an oil cylinder group for controlling the inclined top cutting head to move on the section of a roadway, and a connecting rod group; the oil cylinder group comprises a rotating oil cylinder, a small arm oil cylinder and a large arm oil cylinder; displacement sensors are arranged in all oil cylinders of the oil cylinder set to obtain oil cylinder telescopic parameters, the rotating angle range of the connecting rods is determined according ...

Sectional installation construction method for tunnel reinforced pipe shed

The invention discloses a segmental installation construction method for a tunnel reinforced pipe shed, which comprises the following steps of: penetrating a steel reinforcement framework into a pipe shed steel pipe segment by segment in a traction manner, and installing in the same segment, so as to prevent the steel reinforcement framework from being pressed, unstable and deformed; the steel pipes are welded instead of threaded connection, so that the steel reinforcement framework is prevented from torsional deformation; a tool sleeve is adopted to protect the tail part of a pipe shed steel pipe and an exposed steel reinforcement framework from being collided and extruded to deform when being pushed into a hole; the tool sleeve is welded on the pushing machine tool, so that the pushing machine tool is prevented from sliding relative to the tail of the pipe shed steel pipe, and the force applying direction is consistent with the axis of the pipe shed steel pipe; and the steel pipe installation ...

Voltage regulating circuit of direct current

The input end of the whole circuit is connected with a first electronic switch and a third electronic switch in parallel, the output end of the first electronic switch is connected with the input end of a second electronic switch, and the output end of the third electronic switch is connected with the input end of a fourth electronic switch. The output end of the second electronic switch is connected with the output end of the fourth electronic switch to serve as the output end of the whole circuit, an inductor is connected between the output end of the first electronic switch and the output end of the third electronic switch, and the first electronic switch, the second electronic switch, the third electronic switch and the fourth electronic switch are all provided with control ends. And the control ends are connected to the switch driving controller. The invention has the beneficial effects that the inductive reactance of the inductor is changed by changing the frequency of the current ...

Heat preservation water conveying pipe

The utility model discloses a heat preservation water conveying pipe which comprises an outer pipe and an inner pipe arranged in the outer pipe, and a heat preservation layer is arranged in a gap between the inner wall of the outer pipe and the outer wall of the inner pipe. The outer pipe coupling is arranged at one end of the outer pipe, and the outer pipe is fixedly connected with the outer pipe coupling through a quick connector; the female connector is arranged at one end of the inner pipe, and the inner pipe and the female connector are installed in an inserted mode through the long seam allowance; the male connector is arranged at the other end of the outer pipe, and the outer pipe and the male connector are integrally formed; the sealing ring is arranged in the gap between the outer pipe coupling and the female joint, and the inner wall and the outer wall of the sealing ring are tightly attached to the outer pipe coupling and the female joint respectively. High-performance heat preservation ...

Design flood process calculation method and system based on flood control design adaptive correction

The invention provides a flood control design self-adaptive correction-based design flood process calculation method and system, and the method comprises the steps: a calculation step: determining a self-adaptive flood process based on a target typical flood process, a design flood peak flow and design flood volumes in different time periods according to a same-frequency control amplification method and a moving average filter; an evaluation step: calculating a similarity comprehensive evaluation index of the adaptive flood process and the target typical flood process; a judgment step: based on the similarity comprehensive evaluation index, judging whether a preset cycle stop condition is met; if the preset cycle stop condition is not met, updating the target typical flood process by using the adaptive flood process, and repeatedly executing the calculation step, the evaluation step and the judgment step until the preset cycle stop condition is judged to be met; a target design flood process ...

Simulation device for detecting strength of segment joint in tunnel

The invention discloses a simulation device for detecting the strength of a duct piece joint in a tunnel, which comprises a duct piece with a splicing joint, at least two groups of thrust devices applying pressure downwards are loaded on the arc-shaped end face of the duct piece, and a group of thrust devices applying pressure horizontally are loaded on the outer sides of the left end and the right end of the duct piece respectively. Each thrust device is composed of an S-shaped thrust sensor and a thrust rod, the S-shaped thrust sensor is connected with a cylindrical air cylinder through an air pump, the cylindrical air cylinder is controlled by a pressure regulating valve, the thrust rod is connected with the S-shaped thrust sensor through a bolt, the other end of the cylindrical air cylinder penetrates through a hole in the middle of a support fixedly arranged on the loading platform to be supported, and a rod body of the thrust rod is connected with the cylindrical air cylinder through ...

Supporting device for cement stabilized macadam construction

The invention discloses a supporting device for cement stabilized macadam construction, which comprises a supporting plate with a groove-shaped cross section and a supporting system of the supporting plate, the supporting system comprises a plurality of supporting structures arranged at intervals, each supporting structure comprises a fixed shaft, the fixed shaft is vertically arranged between an upper leg plate and a lower leg plate, a rotating sleeve is mounted on the fixed shaft, and the rotating sleeve is fixedly connected with the supporting plate. A strip-shaped horizontal supporting plate perpendicularly and fixedly connected with the rotating sleeve is arranged at the bottom of the outer side of the rotating sleeve, and a positioning structure is arranged at the end, away from the rotating sleeve, of the strip-shaped horizontal supporting plate. The strip-shaped horizontal supporting plate and the supporting structure thereof are fixed in the back groove of the supporting plate ...

Dismantling method for underground structure combining pile-anchor support and main body structure

The invention relates to a dismantling method of an underground structure combining a piled anchor support and a main body structure, which comprises the following steps: S1, determining the position of an anchor rod according to a foundation pit design drawing, forming a hole in the position of the anchor rod out of a structural side wall as an anchor disc mounting hand hole, exposing the end of the cut anchor rod, and mounting an end anchor disc; s2, mounting a bracket and an end plate; pedestals are welded on the inner sides of the end plates; mounting an anchor disc for fixing; s3, a jack, an axial force meter and an anchor disc for tensioning are installed; s4, the tensioning force of the anchor rod during foundation pit design is determined, the jack is started, and the anchor rod is tensioned; and S5, the underground structure is removed, and the foundation pit is backfilled. Reconstruction of a supporting structure is omitted, and the method is lower in carbon and more economical ...

Circulating soil sampling device for deep foundation pit

The invention relates to a deep foundation pit circulating soil taking device which comprises a supporting frame with the lower end fixed to the bottom of a deep foundation pit and the upper end fixed to the ground, a chain capable of circularly running is installed on the supporting frame through a gear transmission mechanism, a plurality of hopper assemblies are arranged on the chain at intervals, and each hopper assembly comprises a hopper body, a balance part, a supporting shaft and a reset spring. The lower half portion of the hopper body is conical, an obliquely-arranged connecting plate is fixed to the rear side of the upper half portion of the hopper body, connecting columns are fixed to the left side and the right side of the hopper body, the upper end of the balance part is hinged to the upper end of the connecting plate, a supporting part abutting against the hopper body is fixed to the front side of the balance part, and supporting rods are fixed to the left side and the right ...

Configuration method and device for beam manufacturing pedestal and formwork of precast beam yard

The invention provides a method and a device for configuring a beam making pedestal and a template in a precast beam yard. The method comprises the following steps that the number of beam manufacturing pedestals is determined based on beam manufacturing time and the size of a precast beam site in a construction period plan; the average daily beam manufacturing number is calculated according to the number of the beam manufacturing pedestals, the beam manufacturing process is divided into a plurality of beam manufacturing periods based on the number ratio of all kinds of precast beams, and the type and number of manufactured beams in one beam manufacturing period are determined; based on the principle that precast beams of the same shape and size use the same type of formworks, the type and number of the formworks in a beam manufacturing period are determined, and the precast beams produced every day and the used formworks are determined. According to the method, the beam manufacturing process ...

Arylamino-containing organic compound and organic electroluminescent device containing same

The invention discloses an organic compound containing arylamino and an organic electroluminescent device containing the organic compound. The structural general formula of the organic compound is as shown in a formula I, and one of Ar1 and Ar2 represents a group as shown in a formula II. The organic compound comprises a fluorene structure which has a multi-plane spatial three-dimensional structure characteristic and is shown in a formula II, the spatial three-dimensional structure can effectively prevent exciton quenching caused by too close intermolecular distance, and the luminous efficiency of the compound in a device is effectively improved. Meanwhile, due to the strong electron donating effect of the diarylamine substituent group, the electron cloud distribution of the compound is adjusted, and the HOMO-LUMO electron cloud distribution of a plane formed by nitrogen-boron-nitrogen atoms is improved, so that the oscillator intensity of the compound is improved, and the compound is easier ...

Construction method for anti-floating reinforcement of thin bottom plate of subway station foundation pit in high-water-level area

The invention discloses a construction method for anti-floating reinforcement of a thin bottom plate of a subway station foundation pit in a high-water-level area. The construction method comprises the following steps that firstly, an underground diaphragm wall is constructed, wherein the underground diaphragm wall construction process comprises foundation trench excavation, reinforcement cage lowering and concrete pouring; and secondly, anti-floating reinforcing system construction and bottom plate construction are conducted. The anti-floating reinforcing system is connected with the side wall and the bottom plate of the underground diaphragm wall, so that the thin bottom plate obtains enough anti-floating capacity, the risk that in traditional anti-floating measures, anti-floating anchor rods and uplift piles penetrate through a water-resisting layer, and safety accidents are caused is avoided, the structure is stable, and the safety degree is high; in the subway station bottom plate ...

Experimental device and experimental system for simulating leakage cavity grouting plugging

The invention discloses an experimental device and an experimental system for simulating grouting plugging of a leakage cavity. The experimental device comprises a collecting system, a water injection system and a grouting system, wherein the collecting system, the water injection system and the grouting system are connected with a water overflow hole, a water injection hole and a grouting 1 which are respectively arranged on a box body; the water injection system comprises a water tank which is connected through a water injection hole and has a certain height, one pipe opening of the water tank is connected with the water storage tank through a water pump, and the other pipe opening of the water tank is connected with the water inlet through an overflow pipe; the grouting system comprises a screw grouting pump connected through a grouting hole, and the screw grouting pump is connected with a grouting material storage box; the collecting system comprises a water outlet tank connected through ...

Cover-excavation method subway station bottom plate adjustable uplift pile and construction method

The cover-excavation method subway station bottom plate adjustable uplift pile comprises an uplift pile body, a groove is formed in the top of the uplift pile body, a water stop strip is laid in the groove, a plurality of steel bars are evenly connected to the top of the uplift pile body in the circumferential direction, the top of the uplift pile body is connected with a bottom plate, the steel bars penetrate through the inner side of the bottom plate, and a pit is formed in the top of the bottom plate. The position of the recess corresponds to the position of the uplift pile, a bearing plate is installed in the recess, the upper end of the steel bar penetrates above the bearing plate, and a post-pouring block is installed in the recess of the bottom plate. By the adoption of the method that the deformation amount is reserved on the pile top, the uplift pile is designed to be an adjustable pile foundation which acts only after deformation of the bottom plate reaches the preset deformation ...

Variable-speed and variable-torque motor

A stator core is fixed on a stator shaft, a first bearing and a second bearing are respectively assembled on bearing positions at two ends of the stator shaft, a stator winding is wound in a wire slot of the stator core, an outer rotor winding is wound in a wire slot of an outer rotor core, and the variable-speed variable-torque motor is characterized in that the outer rotor core is fixed in an outer rotor sleeve; the outer rotor sleeve is assembled with the stator shaft by taking the first bearing as a positioning position, the outer rotor end cover is assembled with the outer rotor sleeve by taking the second bearing as a positioning position, and the current limiting controller is communicated with the outer rotor winding and is fixed on the left side of the outer rotor sleeve. The stepless variable-speed and variable-torque motor has the beneficial effects that a motor control mode is changed from an original power frequency power supply direct driving mode, a frequency converter active ...

Rapid tunneling process of combined type tunneling and anchoring all-in-one machine

The invention discloses a rapid tunneling process of a combined type tunneling and anchoring all-in-one machine, belongs to the technical application field of coal mine tunneling processes and equipment, and can solve the problems that in rapid tunneling of the tunneling and anchoring all-in-one machine, the flexibility of the equipment is poor, the geological condition applicability is insufficient, the equipment is inconvenient to withdraw or withdraw, the construction such as open-off cut and tunnel connection is not completely applicable, and the preparatory work is numerous. On the basis of fully considering the characteristics of high digging and supporting efficiency of a digging and anchoring all-in-one machine and flexibility of a small digging and anchoring machine, the combined type rapid digging process is provided, large equipment and small equipment are used in a combined mode, professional equipment works in a matched mode, applicability and flexibility are enhanced, and ...

Step post-installation method of prefabricated inspection well

The invention discloses a post-step mounting method for a prefabricated inspection well, which comprises the following steps of: (1) pre-embedding a nut sleeve according to a step design position in a reinforcing steel bar mounting process of a well chamber and a shaft of the inspection well, and welding and fixing one end of the nut sleeve with a reinforcing steel bar of the well chamber or the shaft of the inspection well at a corresponding position; (2) a protective cap is installed at the exposed end of the nut sleeve located in a well chamber or a shaft of the inspection well and wound tightly through an adhesive tape; (3) steps are manufactured, and twisted steel bars are connected to the side walls of the steps; (4) the protective cap and the adhesive tape installed at the exposed end of each nut sleeve are removed, and then the threaded steel bar rods of all the steps are in threaded connection with the nut sleeves in a one-to-one correspondence mode; (5) the nut sleeve and the ...

General wedge-shaped segment point location selection method

The invention belongs to the field of building tunnel construction, and particularly relates to a universal wedge-shaped segment point location selection method. Comprising the following steps in sequence: 1) selecting points according to a staggered joint principle; (2) shield tail gap point selection; 3) selecting points of a thrust cylinder; 4) designing axis deviation selection points; according to the universal wedge-shaped segment point location selection method, on the basis of guaranteeing the basic principle of segment joint staggering, the unique point location is determined through the gradual progressive relation by means of the shield tail gap, the thrust oil cylinder stroke difference and the design axis deviation, and the point selection element in the previous step serves as the basic condition of the point selection element in the next step. Wherein the gap staggering principle and the shield tail gap in the four elements are used for solving whether the point position ...

Power prediction method and device, equipment and storage medium

The invention provides a power prediction method, device and equipment and a storage medium, and relates to the technical field of energy power prediction, and the method comprises the steps: inputting first time into a first weather prediction model, and outputting wind speed prediction information, solar radiation prediction information and precipitation prediction information of an area where a target power station is located at the first time; wherein the first meteorological prediction model is obtained through training according to historical meteorological data samples of an area where the target power stations are located, and the target power stations comprise a hydroelectric power station, a wind power station and a photoelectric power station; based on the precipitation prediction information, determining storage flow information of the target power station at the first time; and based on the wind speed forecast information, the solar radiation forecast information and the storage ...

Telescopic totally-closed protective device for large cantilever bent cap

The invention discloses a telescopic totally-closed protective device for a large-cantilever bent cap. The telescopic totally-closed protective device comprises an I-shaped steel cross beam, a U-shaped frame, a pulley assembly, a crossed inclined strut, an end cross rod, a long-side cross rod, a limiting pull rod, a limiting pin and a dense mesh. The U-shaped frames can slide on a lower flange plate of the I-shaped steel cross beam through the tackle assemblies, the adjacent U-shaped frames are connected through the cross inclined struts and can stretch out and draw back, and the exterior is totally closed through the dense-mesh net; during use, the device is mounted near a pier column, then extends to the cantilever end of the bent cap and retracts and is detached after completion, no protection-free operation and traffic interruption are needed above an auxiliary road in the whole process, safety and convenience are achieved, turnover is convenient, and working hours and cost are saved ...

Movable multi-branch chute

The invention discloses a movable multi-branch chute which comprises a support, a hopper, a main chute and branch chutes, the hopper, the main chute and the branch chutes are supported by the support, the hopper is of a U-shaped structure and is transversely arranged along a bridge floor, the bottom of the hopper is in an arc shape with the middle protruding upwards, and the hopper is installed at the top of the middle position of the support; the two main chutes are symmetrically arranged on the left side and the right side of the hopper, the upper ends of the main chutes are connected with the hopper, and the lower ends of the main chutes are connected with wet joints on the outer side. The number of the branch chutes is matched with that of the middle wet joints, the branch chutes are arranged below the main chute, the bottom of the main chute is provided with branch outlets in one-to-one correspondence with the branch chutes, the upper ends of the branch chutes are connected to the ...

Ultrasonic wave intelligence basin

... 本实用新型公开了一种超声波智能水槽，包括：本体水槽；水槽设置有主水槽和副水槽；设置在主水槽和副水槽之间的隔断；隔断上设置有电源按键和微电脑控制系统；微电脑控制系统包括清洗果蔬按键、清洗油污按键、清洗餐具按键和灭菌按键；设置在水槽底部的能量转换装置；其中能量转换装置设置有电源装置、以及与电源装置连接的超声波换能器；电源装置包括信号源系统和信号放大系统。本实用新型设计的水槽，不仅可以清洗餐具的油污和食品表面的农药残留，而且整个过程智能控制，使用方便。 ...

Recyclable full framing foundation and construction method thereof

The recyclable full framing foundation comprises a plurality of concrete slabs, a plurality of concrete sleeper blocks are longitudinally connected to the tops of the concrete slabs, lifting lugs are connected to the front ends and the rear ends of the concrete slabs, a plurality of connecting steel plates are connected to the left ends and the right ends of the concrete slabs, and the adjacent concrete slabs are connected through connecting bolts. An adjustable bottom support is arranged on the top of the concrete sleeper block, and the full framing is arranged on the top of the adjustable bottom support. The working procedures of concrete pouring, curing, dismantling and the like are reduced, the construction period is shortened, concrete waste is reduced, through the working procedures of foundation plate prefabricating, on-site splicing and connecting, dismantling after construction is completed and the like, recycling of the concrete hardening foundation is achieved, using of square ...

Temporary plugging structure for stage construction of tunnel and construction method of temporary plugging structure

The invention provides a temporary plugging structure for tunnel staged construction and a construction method thereof.The temporary plugging structure comprises an early construction tunnel section, a waterproof assembly and a plugging assembly, the plugging assembly comprises a main plugging wall and an enclosure plugging wall, and the main plugging wall is matched with an opening of the early construction tunnel section; the upper portion of the main body blocking wall is connected with a top plate of an early construction tunnel section, the lower portion of the main body blocking wall is connected with a bottom plate of the early construction tunnel section, and the enclosure blocking wall blocks the side face, away from the early construction tunnel section, of the main body blocking wall. The water stop piece is plugged on the side, away from the early construction tunnel section, of the enclosure plugging wall, a reserved connector unit for installation of the anti-seepage piece ...