43results about How to "Stable thrust" patented technology

The utility model belongs to the technical field of mechanical engineering, and particularly relates to a bearing fatigue life testing machine which comprises a bottom plate, a support fixedly connected to the top of the bottom plate, a driving mechanism arranged at the top of the support and comprising an air cylinder located at the top of the support, a motor connected to the telescopic end of the air cylinder, and a top seat connected to the output end of the motor. A base is rotationally connected above the bottom plate, a bearing to be detected sleeves the base, and applying mechanisms are connected to the two sides of the support. Through the combined application of the cylinder and the motor, the test machine can realize the efficient and accurate test of the to-be-detected bearing. The air cylinder provides stable thrust, the stability of the bearing in the testing process is guaranteed, and the motor is responsible for driving the bearing to rotate and simulating the fatigue load in the actual working state. The optimal design of the mechanical structure not only improves the testing efficiency and accuracy, but also reduces the dependence on a complex intelligent control system, thereby effectively controlling the cost of the testing machine.

The invention discloses a connecting, pushing and punching device integrating multiple functions of connecting, unlocking and pushing and punching. The connecting, pushing and punching device comprises a connecting bolt, a split nut, a piston barrel, a pushing-out rod, a shell, a base body, a connecting nut, a pressing ring, a spring, a pressing ring bolt and an actuating air source. Wherein one end of the connecting bolt is connected with the split nut, the piston cylinder and the base body, and the other end of the connecting bolt is connected with a second connected piece through the connecting nut; the split nut is arranged in the piston cylinder; the push-out rod is arranged in the piston cylinder; the piston cylinder is arranged in the shell; the inner wall of the base body is connected with the outer surface of the shell; the outer surface of the base body is sleeved with the pressing ring. The pressing ring is connected with the first connected piece through a pressing ring bolt. The spring is arranged in the shell; and the actuating air source is connected with the shell. The invention has the advantages of compact structure, high connection efficiency, small unlocking impact, stable and adjustable thrust, controllable acting impulse, good sealing performance, light structural weight and convenience in installation.

The invention relates to the technical field of injection molding machines, in particular to an injection molding machine intelligent pressure maintaining mechanism capable of automatically adjusting mold clamping force, which comprises an injection mechanism, a driving mechanism and a mold clamping mechanism, the injection mechanism comprises a mounting frame and a mounting seat, a guide rail and a first linear driver are arranged on the mounting frame, the mounting seat is slidably arranged on the guide rail, the first linear driver is used for driving the mounting seat to reset, and the mounting seat is connected with an injection rod in the charging barrel; the driving mechanism comprises a linear driving assembly, an elastic pushing assembly and a limiting assembly, the linear driving assembly pushes the mounting base to move along the guide rail through the elastic pushing assembly, and the limiting assembly is used for limiting movement of the mounting base; the mold locking mechanism comprises a head plate, a second plate, a tail plate and a mold locking assembly used for providing mold locking force. Through the injection mechanism, the driving mechanism and the mold locking mechanism, the stable pressure maintaining function after high-speed glue injection is achieved, and the problem that the mold locking force is insufficient due to the fact that an existing injection molding machine is poor in controllability on pressure maintaining operation is solved.

The utility model discloses a sucker rod coupling installation device which comprises a box body, a servo motor and a chuck, the servo motor and the chuck are arranged on the two sides of the box body respectively, a transmission assembly is arranged in the box body, and the servo motor drives the chuck to rotate through the transmission assembly. The chuck is provided with at least three clamping jaws opposite to one side of the servo motor, the clamping jaws are evenly distributed on the periphery of the chuck in the circumferential direction, the clamping jaws are used for clamping a coupling, and a pressure maintaining unit is arranged on the top of the box body. The stable thrust to the coupling is kept all the time, the servo motor and the transmission assembly are matched, the coupling can be automatically screwed, it is guaranteed that the coupling is screwed in place, and the situation that oil leaks due to the fact that screwing is not in place when the coupling is manually installed or the coupling is damaged due to excessive screwing is avoided.

The present invention relates to the technical field of injection molding machines, and specifically to an intelligent pressure-maintaining mechanism of an injection molding machine, including an injection mechanism, a driving mechanism and a clamping mechanism; the injection mechanism includes a mounting frame and a mounting seat, the mounting frame is provided with a guide rail and a first linear driver, the mounting seat is slidably arranged on the guide rail, the first linear driver is used to drive the mounting seat to reset, and the mounting seat is connected to the injection rod in the barrel; the driving mechanism includes a linear driving component, an elastic pushing component and a limiting component, the linear driving component pushes the mounting seat to move along the guide rail through the elastic pushing component, and the limiting component is used to limit the movement of the mounting seat; the clamping mechanism includes a head plate, a second plate, a tail plate and a clamping component for providing clamping force. The present invention realizes the function of stable pressure maintenance after high-speed injection through the injection mechanism, the driving mechanism and the clamping mechanism, and solves the problem that the existing injection molding machine has weak control over the pressure-maintaining operation and leads to insufficient clamping force.

The invention discloses hot-pressing curing forming equipment for shoe sole production and processing, and relates to the technical field of shoe sole production, the hot-pressing curing forming equipment comprises a hot-pressing curing forming equipment shell, the inner wall of the hot-pressing curing forming equipment shell is fixedly connected with a curing forming table, and the bottom of the inner side of the curing forming table is fixedly connected with a plurality of mold table mechanisms; according to the shoe sole material hot-pressing and curing forming device, the multiple mold table mechanisms are arranged, so that multiple shoe sole materials can be processed at the same time in the hot-pressing and curing forming process, the production efficiency is improved, meanwhile, each mold table mechanism is provided with the mold control mechanism, opening and closing actions of the mold tables can be accurately controlled, and it is ensured that after hot pressing is completed, the shoe sole materials can be processed. The mold table can be rapidly opened, adhesion of materials and the surface of the mold is avoided, and therefore mold withdrawing difficulty and damage to the shoe sole are reduced, specifically, in the shoe sole hot-press forming process, a bidirectional hydraulic push rod is activated firstly, a push-pull plate is pushed to move outwards, and a rotating rod rotates to drive a mold plate to be closed.

A treatment assembly is arranged on a treatment box, the treatment assembly comprises a sliding groove, a long plate, a handle, a connecting plate, an electric push rod, a separation box and a barrier strip, the sliding groove is formed in the inner side of the treatment box, the long plate is connected to the sliding groove in a sliding mode, the handle is installed at the top end of the long plate, and the connecting plate is connected with the electric push rod. The connecting plate is mounted on the inner side of the long plate, the electric push rod is mounted on the connecting plate, the separation box is mounted at the output end of the electric push rod, the barrier strip is mounted on one side of the separation box, and a stirring assembly is mounted on one side of the treatment box and comprises a collecting barrel, a mounting frame and a servo motor. The collecting barrel is arranged on one side of the treatment box, the mounting frame is mounted at the top of the collecting barrel, and the servo motor is arranged on the mounting frame, so that the technical problem that scum in water cannot be effectively separated by an existing device mentioned in the background technology is solved.

The utility model relates to intelligent lock technical field, especially intelligent lock's power mechanism, rotation mechanism is used for driving rotation seat rotation, rotation mechanism includes link, linear module and slide seat slidingly connected on fixed base, link one end is hinged on slide seat, the limiting ring that sets up on rotation seat, the eccentric position of limiting ring sets up the locating hole, the locating hole is fixed with the pivot that matches on link, the pivot inserts into the locating hole, the surface of link is pasted on the surface of limiting ring towards fixed base, when using the utility model, improve assembly efficiency, make the power mechanism assembly of whole lockset more simple.

The invention relates to the technical field of board sawing, and particularly discloses a vertical assembly type building board sawing device and method.The vertical assembly type building board sawing device comprises a plurality of supporting assemblies, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged in parallel, and the position, away from the second clamping plate, of the surface of the first clamping plate is a first mounting face; the position, away from the first clamping plate, of the surface of the second clamping plate is a second mounting face, a spring force storage mechanism is fixedly mounted on the first mounting face, a rope disc is coaxially mounted on a rotating shaft of the spring force storage mechanism, and a sawing rope is wound on the rope disc. The side face of the first clamping plate and the side face of the second clamping plate are each provided with a rope passing hole allowing a sawing rope to penetrate through. According to the vertical assembly type building board sawing device, vertically-placed boards can be sawed, the sawing efficiency of the boards is improved, and the workload of operators is reduced.

The invention discloses a solid rocket nozzle capable of repeatedly igniting and an engine. The solid rocket nozzle comprises an anti-ablation lining, a heat insulation sleeve and a shell, the anti-ablation lining is arranged on the innermost side of the spray pipe and is made of a tungsten / carbon + carbon / carbon + resin composite material or a tungsten / carbon + resin composite material, the heat insulation sleeve is arranged on the outer side of the anti-ablation lining in a sleeving mode, and the shell is arranged on the outer side of the heat insulation sleeve. The invention is suitable for solid rocket engines working for a long time, in particular to solid rocket engines of tactical missile rockets with tiny throat diameters and multi-pulse engines which are ignited for multiple times.

The utility model discloses a driving mechanism which is arranged in a second space formed by a shell and a lower sleeve body and comprises a rotary body, a pipe frame, a push rod, a spring and an actuating piece. The rotary body is rotationally arranged on the inner side of the shell, and the rotary body partially extends into the lower sleeve body and is connected with the lower sleeve body; the pipe frame is arranged on the inner side of the rotary body, rotates along with the rotary body all the time and can only move up and down in the axial direction of the rotary body. The push rod extends to the position above the shell from the pipe frame and is used for applying thrust to a target object; the spring is arranged below the pipe frame; the actuating piece is arranged above the rotary body and can reciprocate in the shell in the radial direction; the driving mechanism is convenient to operate, more stable pushing force can be provided by using a spring instead of a lifting handle, the atomization effect of the device is remarkably improved, the consistency of each spraying of the device is good by using a disposable medicine bottle to be matched with stable pushing force output, and daily precise medicine taking of a patient is facilitated.

The application discloses a clamping device for welding special-shaped pipe fittings and belongs to the technical field of welding devices, which comprises a clamping cylinder, an insertion cylinder, a movable bearing table, a centering and clamping assembly and a supporting base. An inner support clamping mechanism is arranged in the clamping cylinder. An extrusion top block is arranged above the clamping cylinder. The inner support clamping mechanism is triggered to expand by the extrusion top block penetrating through the vertical pipe and abutting against the inner wall of the horizontal pipe to calibrate and clamp the splicing part of the tee pipe to be assembled. The top of the insertion cylinder is connected with the bottom of the clamping cylinder. A locking mechanism is arranged in the insertion cylinder. The locking mechanism cooperates with the inner support clamping mechanism to lock and release the clamping state of the inner support clamping mechanism. The supporting base is connected with the bottom of the insertion cylinder through a straight rod. The movable bearing table is movably sleeved on the straight rod and elastically abuts against the bottom of the insertion cylinder. The centering and clamping assembly is arranged on the movable bearing table and is used for centering and calibrating the vertical pipe.

The utility model relates to the technical field of supporting structures, in particular to an underground diaphragm wall bias pressure inner support local reinforcing structure which comprises a supporting wall, the first underground diaphragm wall and the supporting wall are oppositely arranged, and the two sides of the first underground diaphragm wall are not in contact with soil. One end of the horizontal middle beam is connected with the supporting wall, and the other end is connected with the first underground diaphragm wall; one end of the first inclined strut is connected with the first diaphragm wall, and the other end is connected with the ground; the ground support beam is connected with the first inclined support; one end of the second inclined strut is connected with the first diaphragm wall, and the other end is connected with the wall top; the top supporting beam is arranged on the wall top and connected with the second inclined strut; the first inclined strut, the ground supporting beam, the first metal rod, the second metal rod, the top supporting beam and the second inclined strut form a hexagon. A hexagon is formed by the first inclined struts, the ground supporting beams, the first metal rods, the second metal rods, the top supporting beams and the second inclined struts, so that stable thrust and tension supporting is achieved for the first underground diaphragm wall, and then the safety and stability of the first underground diaphragm wall are improved.

The invention belongs to a brushless motor, and particularly relates to a variable-torque permanent magnet brushless motor. The invention discloses a torque-variable permanent magnet brushless motor capable of changing torque through structure improvement. The torque-variable permanent magnet brushless motor comprises mounting parts and the like, a rotating part capable of rotating is mounted on the mounting part, a stator part is jointly mounted between the rotating part and the mounting part, the rotor part is rotationally connected with the stator part, the rotor part covers the stator part, and a shaft part is vertically mounted in the center of the rotor part. The hollow shaft part is rotated by rotating the cylinder part forwards and backwards, so that the distance between the iron core and the magnetic sheet is adjusted, the torque of the brushless motor is adjusted, convenience and rapidness are achieved, and meanwhile the brushless motor cannot be damaged; when the torque of the brushless motor needs to be further improved, the arc length of the outer surface of the iron core is increased through the filling block, so that the thrust of the iron core to the magnetic sheet is more stable, the torque of the brushless motor is further enhanced, and meanwhile, the filling block is pressed on the iron core, so that the arc length of the outer surface of the iron core is increased.

The utility model discloses a leg support frame for nursing, which comprises a fixing rod, the fixing rod is arranged on external equipment, an adjusting mechanism is arranged on the fixing rod, the adjusting mechanism comprises a supporting mechanism, a clamping disc, a middle wheel, lateral teeth, a pull rod, a pull disc, a push disc, a spring and a connecting mechanism, the supporting mechanism is connected to the fixing rod in a matched manner, and the clamping disc is arranged on the supporting mechanism. The clamping disc is rotationally connected to the fixing rod, lateral teeth are installed on the clamping disc, the adjusting mechanism can allow a user to adjust the supporting force of the leg supporting frame according to personal requirements, height individuation and flexibility are provided, the force applied to the leg support can be accurately controlled by adjusting the length and stiffness coefficient of the spring, and the user experience is improved. And it is ensured that the patient can obtain appropriate supporting force in different recovery stages. By means of the design, the applicability of the leg supporting frame is improved, and the comfort degree and the satisfaction degree of a patient are improved.

The utility model discloses an adjustable ventilation device for a ship, which relates to the technical field of ship ventilation and comprises a ship body and a mounting box, the ship body is fixedly sleeved on the outer surface of the mounting box, a ventilation pipe fixedly penetrates through the right side surface of the mounting box, and a disc is arranged in the ventilation pipe. The upper end and the lower end of the disc rotationally penetrate through the inner wall of the ventilation pipe, and the end, above the ventilation pipe, of the disc is fixedly sleeved with a friction wheel; according to the adjustable ventilation device for the ship, through the disc in the ventilation pipe, when wind power is large, the speed of pushing the disc to rotate is high, after the disc drives the friction wheel to increase the rotating speed, the leftward moving distance of the movable ring is increased through friction force between the friction wheel and the friction plate, and the pull rope pulls the rotating rod to rotate towards the axis side of the ventilation pipe; and when the multiple rotating rods rotate, the right ends of the corrugated flexible pipes are folded, so that the diameter between the right ends of the corrugated flexible pipes is reduced, and the wind force entering the ventilation pipe through the corrugated flexible pipes is reduced.

The invention discloses a boosting device for upwards pushing a fetal head in a cesarean section, which comprises a boosting component and a pressurizing component which are connected through a pipeline, the boosting component comprises a boosting air bag capable of wrapping and pushing the tire head, a through hole is formed in the right end of the boosting air bag, and a negative pressure pipe is connected to the through hole; the pressurizing component comprises a pressurizing bin, a piston is arranged in the pressurizing bin, the side wall of the pressurizing bin is sleeved with an adjusting circular ring, two valve assemblies are installed on the side wall of the adjusting circular ring, and communicating holes communicating with the two valve assemblies are formed in the side faces of the pressurizing bin correspondingly. The device can prevent the fetal head from being in contact with the human hand to the maximum extent, and the risk of retrograde infection of the pregnant woman is reduced; the auxiliary device is attached to the fetal head through slight negative pressure, the situation that the thrust angle is changed due to displacement of the boosting air bag in the boosting process is prevented, the thrust stability is guaranteed, the uniform thrust and pushing speed of each time of pressurization can be guaranteed through the pressurization component, and the risk that the fetal head is damaged due to bare-handed pushing is reduced.

The invention discloses a multi-rotor transmission control method and a multi-rotor transmission control system, and the method achieves the autonomous cascade control between different drivers corresponding to different linear motor modules when rotors cross the different linear motor modules, and greatly reduces the workload of an upper controller. The upper controller does not need to carry out real-time control scheduling on all the drivers, and only needs to issue a high-level control instruction, so that the complexity and cost of system development are reduced. Data interaction and control cooperation are carried out among the drivers through the special inter-stage communication bus, the bus communication bottleneck is avoided, and the communication real-time performance of the system is improved. Therefore, the rotor can stably and continuously move between the linear motor modules, the problems of unstable thrust and speed fluctuation when the rotor crosses the joint of the linear motor modules in the prior art are solved, and the control performance and the operation reliability of the system are remarkably improved.

The utility model belongs to the technical field of terminal wire pressing equipment, and discloses a tubular terminal wire pressing device, which comprises a wire pressing main body and a driving piece, the wire pressing main body comprises a fixed panel, a plurality of pin shafts, pressing teeth and a connecting rod, the fixed panel is flatly placed on a workbench, the pin shafts are distributed on the fixed panel at intervals along the circumferential direction, and the pressing teeth are arranged on the fixed panel. The multiple pressing teeth are rotationally connected with the multiple pin shafts in a one-to-one correspondence mode, one end of each pressing tooth is provided with a pressing connection face, the multiple pressing connection faces define a pressing connection opening, the gear ring is placed on the fixing panel, the pressing teeth are located in a center hole of the gear ring, the other ends of the pressing teeth are connected with the inner wall of the gear ring, the connecting rod is connected with the gear ring, and the driving piece is connected with the connecting rod. The connecting rod can be controlled to move. According to the pipe type terminal crimping device, the pipe type terminal is quickly crimped without using a manual crimping mode, and crimping forces applied to the pipe type terminal each time are consistent, so that cables have high consistency.

The utility model relates to the technical field of manufacturing of railway vehicles, in particular to a hanging needle type oil nozzle for a train traction motor, which comprises an oil nozzle main body with an inner conical oil outlet nozzle, and is characterized in that a through hole is formed in the oil nozzle main body along the axial direction, steel balls are sequentially arranged in the through hole, a spring is arranged behind the steel balls, and an oil outlet is formed in the oil nozzle main body. And a check ring is arranged at the tail part of the spring, is positioned in a through hole in the oil nozzle main body and is embedded in the oil nozzle main body through a clamping ring. The hanging needle type oil nozzle provided by the utility model is good in water tightness and air tightness and can meet various use working conditions; the structure is simple and novel, production and assembly are convenient, and production cost is saved; and the elasticity of the oil nozzle steel ball is adjustable to adapt to different types of grease.

The invention discloses a material turning mechanism for a petroleum drill pipe joint production line, and relates to the technical field of assembly tooling. The material turning mechanism for a petroleum drill pipe joint production line comprises a load-bearing platform, a transmission mechanism is fixedly installed on the top of the load-bearing platform, the transmission mechanism comprises a mounting frame and a conveyor belt, the mounting frame is fixedly installed on the top of the load-bearing platform, the conveyor belt is arranged inside the mounting frame, a support frame is fixedly installed on a side of the load-bearing platform away from the transmission mechanism, a linear drive mechanism is fixedly installed on a side of the support frame close to the transmission mechanism, a rectangular plate is fixedly installed on the output end of the linear drive mechanism, wherein the turning device comprises a driving motor, a rotating frame, an electric push rod, a mounting plate, a positioning rod, a round rod, a rubber plate, a No. 1 spring, a rotating shaft and a clamping plate, the contact area with the drill pipe joint is increased by the clamping plate, so as to ensure that the drill pipe joint is stably clamped when turning over.

The present invention discloses a method for determining the sliding height of a sliding form based on the strength detection of silo concrete. First, a detection unit is directly inserted into the silo concrete to obtain the designed parameter value; secondly, the sliding height of the sliding form is calculated and determined based on the obtained relevant parameters, the concrete strength required by the sliding form specification, and the height of the detection unit in the silo concrete. The present invention relies on inserting the push rod of the telescopic thruster into the concrete, obtaining the relevant parameters, and then calculating and determining the sliding height of the sliding form, which has the advantages of simple structure, low cost, and high degree of automation.

The utility model relates to the technical field of medical instruments, in particular to an injector and an automatic propelling device thereof, the automatic propelling device comprises a shell, a propelling assembly and a control assembly, a buckle connected with the injector is arranged on the shell, and a through hole for the injector to penetrate through is formed in the end, close to the buckle, of the shell. The propelling assembly comprises a driving piece, a connecting plate and a lead screw which are installed in the shell, the driving piece is located at the end, away from the buckle, of the shell, one end of the lead screw is rotationally connected with the end, close to the buckle, of the shell, and the other end of the lead screw is connected with the driving piece. When the driving piece drives the lead screw to rotate, the connecting plate is driven to slide in the shell and push the injector to inject medicine; the control assembly comprises a control switch and a circuit board, the circuit board is arranged in the shell, and the control switch is electrically connected with the driving piece through the circuit board so as to control the driving piece to work.

The present invention relates to the technical field of plate sawing, and specifically discloses a vertical assembled building plate sawing device and method. The vertical assembled building plate sawing device comprises a plurality of supporting components, and a first clamping plate and a second clamping plate arranged in parallel. The position of the surface of the first clamping plate away from the second clamping plate is the first mounting surface, and the position of the surface of the second clamping plate away from the first clamping plate is the second mounting surface. A spring power storage mechanism is fixedly mounted on the first mounting surface, and a rope drum is coaxially mounted on the rotating shaft of the spring power storage mechanism. A sawing rope is wound on the rope drum. Rope holes for the sawing rope to pass through are provided on the side surfaces of the first clamping plate and the second clamping plate. The vertical assembled building plate sawing device exemplified in the present invention can saw vertically placed plates, improve the sawing efficiency of the plates, and reduce the workload of operators.

The present invention discloses a mechanical sealing device for a petrochemical pump, which relates to the technical field of petrochemical pump sealing, and comprises a mounting barrel, wherein the mounting barrel is threadedly connected to a barrel cover, wherein a first sealing ring is placed on the barrel cover through an annular groove, wherein the barrel cover is slidably connected to a push rack, wherein the inner ring and the outer ring of the push rack are both placed with a second sealing ring through an annular groove, wherein a third sealing ring is placed between the end face of the push rack away from the barrel cover and the housing of the petrochemical pump, wherein a one-way pneumatic syringe is installed on the mounting barrel, wherein a rotating rack is bolted to the side of the pump shaft close to the barrel cover, wherein the rotating rack is in contact with the barrel cover. The present invention uses a one-way pneumatic syringe to stably inject pressure into the mounting barrel, so that the push rack can automatically and progressively seal when the sealing end face of the third sealing ring is worn, so that the third sealing ring is always in close contact between the petrochemical pump and the pump shaft, thereby avoiding sealing failure due to wear of the sealing end face.

The invention relates to the technical field of medical instruments, and discloses a brain glioma virus slow-release injection device which comprises a slow-release injection cylinder, a sliding cavity is formed in the slow-release injection cylinder, the left side face of the slow-release injection cylinder is communicated with a conical cover, the left side face of the conical cover is communicated with an injection pipe, and the injection pipe is communicated with a sliding cavity. And the left side surface of the injection tube is communicated with a conical injection head. According to the brain glioma virus slow-release injection device, a slow-release control device is arranged, an annular handle is used for driving an annular rotating plate to rotate, a rotating screw rod is driven to rotate through meshing transmission of a fixed rack and a rotating gear, then a vertical sliding block is driven to slide along a guide sliding rod, and a pressing transverse block is driven to move up and down through a linkage rod and a linkage support; the extrusion degree of the injection tube is adjusted, so that the release rate of a virus preparation is accurately controlled, flexible adjustment can be achieved according to the tumor condition of a patient, individualized treatment requirements are met, and the problem that the release rate of an existing device cannot be adjusted is solved.

The utility model discloses a kind of anti-skid conveying devices of climbing belt conveyor, belong to climbing belt conveyor technical field.This kind of anti-skid conveying device of climbing belt conveyor, including main body and adjusting mechanism, main body includes mounting bracket, the both sides of one end of mounting bracket are all provided with sliding slot, the inside of sliding slot is all slidably installed with bearing seat, a pair of bearing seat is wound with driven roller between, the inside of the other end of mounting bracket is rotatably connected with driving roller, driven roller and driving roller are wound with belt between, the outer surface of belt is provided with several groups trapezoidal anti-skid protrusions at equal intervals, the inside of mounting bracket is rotatably connected with several support rollers between driven roller and driving roller, the outside of support roller and the inside of belt are in abutment;Adjusting mechanism includes a pair of fixed frame, the bottom of a pair of fixed frame is respectively connected with the upper end of mounting bracket two sides, the inside of fixed frame is slidably inserted with baffle, the utility model, can effectively improve the practicality of anti-skid conveying device of climbing belt conveyor, with higher practical value.

The present invention discloses a hydraulic model and design method of a pump-jet propulsor with a movable flexible guide vane, which relates to the technical field of underwater vehicle propulsors, including flexible guide vanes, rotors, stators, stator hubs and rotating shafts; the stator hub is a hollow structure, a support bearing is arranged in the stator hub, and the support bearing is used to support and position the rotating shaft; a stator and a flexible guide vane are arranged on the outer wall of the stator hub; a rotor is arranged on the rotating shaft, and the rotor is arranged between the stator and the flexible guide vane; the stator, the rotor and the flexible guide vane are all arranged in a conduit, wherein the stator is fixedly connected to the conduit; the conduit is a conical structure, the flexible guide vane is arranged at the large end position of the conical structure, and the stator is arranged at the small end position of the conical structure. The present invention can better adapt to complex sea conditions such as non-uniform wake and oblique flow by adding flexible guide vanes, and improve its stability and hydrodynamic performance under complex sea conditions.

The invention provides an axial grading turbofan engine based on methanol fuel afterburning, and belongs to the technical field of aero-engines. The problems that when an existing jet fuel with the high carbon content serves as a raw material, the carbon emission of a turbofan engine is high, the overall NOx is high, and the heat efficiency is difficult to further improve are solved. Through axial grading afterburning, the fuel utilization rate is increased, thrust is improved, carbon emission is reduced, the performance of the turbofan engine is improved, distribution of fuel in the axial position is optimized, the fuel amount of a head combustion area is reduced, meanwhile, the supply amount of the fuel on the two stages can be flexibly adjusted and controlled, a more reasonable air distribution mode is matched, and the combustion efficiency of the turbofan engine is improved. And the overall NOx level can be effectively reduced. The performance of the engine is improved by supplying methanol fuel into the afterburning chamber, the use of aviation kerosene is reduced through afterburning of methanol, and meanwhile, the stability of thrust is guaranteed. The method is more environment-friendly and low in storage and transportation cost, and can utilize the existing fuel infrastructure as a liquid fuel system.