48results about How to "Small inertia" patented technology

The utility model discloses a kind of rice powder microwave heating curing device and rice powder machine with the device, the curing device includes extruding component, it includes extruding cylinder, further include microwave heating assembly, microwave heating assembly is arranged on the outer wall of extruding cylinder.Microwave heating assembly includes magnetron;Extruding component includes machine cylinder component and extruding screw rod, machine cylinder component includes inner cylinder and extruding cylinder;The sidewall of the extruding cylinder is equipped with multiple microwave guide inlets;Inner cylinder is arranged in the extruding cylinder, and the feed inlet of inner cylinder is communicated with the feed pipe;Extruding screw rod is arranged in the inner cavity of the inner cylinder;Each guide inlet on extruding cylinder is equipped with a microwave heating assembly, and guide inlet is fixedly connected with the magnetron.This rice powder microwave heating curing device directly heats rice powder by microwave, is easy to control heating temperature, energy saving and environmental protection, can solve the problem that material is unevenly heated, heating time is long, energy consumption is big in rice powder heating curing process.

The utility model discloses LED lamp strip production electric feeder's anti -sticking device of material, including base and install on the base and material discharge mechanism, guide material frame and anti -sticking detection mechanism, the material discharge mechanism includes material discharge roller and brake stop mechanism, brake stop mechanism installs to the base is used for to material discharge roller and carries out brake stop, anti -sticking detection mechanism includes support frame, square channel, two lower roller and pressure sensing piece. The utility model discloses through setting pressure sensing piece realizes the real -time detection to the tension change of the flexible backplate strip of the output end part of whole material feeding mechanism, and transmission to controller, according to the tension change, judges the tape jam failure, and realizes automatic shutdown control, and utilizes vertical cylinder and drives friction block to realize to material discharge roller and carries out brake stop to realize the device with tape jam failure of equipment realizes real -time detection and reaction, reduces the loss, and wide adaptability range simultaneously, and effectively reduce the inertia of equipment, reduce the advantage of loss.

The utility model discloses a glue nozzle temperature on-line detection device, and relates to the technical field of adhesive sticker production, the glue nozzle temperature on-line detection device comprises a support frame member and a second closed structure member, the bottom of the support frame member is connected with a first joint member, and the second closed structure member is connected to one end of the support frame member far away from the first joint member. According to the glue nozzle temperature on-line detection device, the first joint component and the second joint component are arranged at the two ends of the supporting frame component respectively, a first electric joint and a second electric joint are each of a frameless torque motor structure, and by means of the arrangement of the structures, the whole device structure has the double-section structure movable adjustability; and meanwhile, a damping sleeve is used between the second closing component and the detection component, so that the detection component can realize axial rotation adjustment along the surface of the connecting pile, the structural flexibility is improved, and the device is convenient to use.

The utility model provides a printer with an automatic lifting cross beam, which comprises a rack, a printing headstock, a movable cross beam and a printing platform, lifting assemblies used for driving the movable cross beam to move up and down are arranged on two sides of the printing platform, each lifting assembly comprises a mounting plate, and a screw rod is vertically mounted on one side of each mounting plate through a bearing seat. A supporting plate is vertically and slidably connected to one side of the mounting plate, and the top end of the supporting plate is fixedly connected with the bottom end of the movable cross beam; the lead screw is connected with a ball nut, and the ball nut is arranged between the mounting plate and the supporting plate and fixedly connected with the supporting plate through a fastener. Compared with the mode that a ball nut is fixed, and a lead screw rotates and moves in the prior art, the ink-jet printer has the advantages of being smaller in inertia, higher in precision and longer in service life, meanwhile, the ink-jet printer has higher acceleration and dynamic response speed, and can be better suitable for large-breadth ink-jet printing scenes.

This utility model discloses a mold closing mechanism with a composite ejector cylinder, including a moving mold plate, which has a mold plate body and an outwardly extending protruding structure. The protruding structure is equipped with at least one main ejector cylinder and at least two auxiliary ejector cylinders, the stroke of the main ejector cylinder being greater than the stroke of the auxiliary ejector cylinders. An ejector guide plate is provided between the mold plate body and the protruding structure. The piston rod of the main ejector cylinder is connected to the ejector guide plate, while the piston rod of the auxiliary ejector cylinders is not connected to the ejector guide plate. Several ejector rods are provided on the ejector guide plate, penetrating the mold plate body. During the stroke of the auxiliary ejector cylinders, the main ejector cylinder and the auxiliary ejector cylinders together drive the ejector guide plate to complete the ejection action of the ejector rods. During the remaining stroke, the main ejector cylinder alone drives the ejector guide plate to complete the ejection action of the ejector rods. This mold closing mechanism with a composite ejector cylinder can provide a large ejector force in the initial demolding stage and achieve rapid ejection in subsequent strokes, combining large ejection force and high movement speed to improve production efficiency.

The underwater propeller comprises an outer cylinder, two or more propelling units are coaxially arranged in the outer cylinder in series in the water flow direction, each propelling unit comprises a cylindrical stator located on the outer ring, a cylindrical rotor is rotationally assembled in the stator through bearings arranged at the two ends, and impeller blades are arranged on the inner wall of the rotor; the outer side of each impeller blade is fixed to the inner wall of the rotor, a permanent magnet is attached to the outer wall of the rotor, coils are distributed on the inner wall of the stator and are coreless coils, and the number of turns of the coils of each propelling unit is sequentially reduced from the water inlet end to the water outlet end. The coil is a coreless coil, the coreless coil eliminates iron loss, and under the condition of the same thrust, the needed current is smaller, more electricity is saved, and the efficiency is higher.

The utility model provides a kind of machining center contact type mechanical tool changing structure, it is related to mechanical tool changing structure technical field, including stand mechanism, the front of the stand mechanism is equipped with main shaft box, the front of the stand mechanism is close to top end place, and punch arm mechanism is installed in the inside of main shaft box, the stand mechanism includes stand main body, the top end of the stand main body is equipped with motor with output end towards bottom, the front of the stand main body is close to top end place and is equipped with punch block, the inside of main shaft box is close to the front place and is equipped with main shaft body, the top end of the main shaft box is close to left side place and is screw-connected with first fastening screw, the periphery of the first fastening screw is equipped with tension spring, the top end of the main shaft box is close to the front place and is screw-connected with second fastening screw, mechanical quick tool changing can be realized, additional transmission device is not needed, with the advantages, such as quick tool changing efficiency, small size, cost saving.

This invention relates to a rigid-flexible coupling collaborative aerospace blade grinding robot, comprising a frame, a lifting mechanism within the frame, and an auxiliary gripper, a conveyor belt, and a grinding mechanism at the bottom of the frame. The lifting mechanism includes a primary platform, a secondary platform, and a self-locking gripper arranged sequentially from top to bottom. The primary platform is connected to a first drum in the primary platform control mechanism via a first flexible cable, and the self-locking gripper is connected to a second drum in the gripper attitude control mechanism via a second flexible cable. As can be seen from the above technical solution, this invention features rigid-flexible coupling, high efficiency, modular reconfigurability, large workspace, stable grinding quality, and full-process automation. Furthermore, this robot can automatically complete clamping, omnidirectional grinding, and lifting tasks, and is adaptable to grinding aerospace blades of different sizes and structures.

The utility model discloses a conveying belt deviation rectifying device and a belt conveyor. The conveying belt deviation rectifying device comprises two catch wheel sets arranged on the two sides of a conveying belt respectively, a deviation rectifying assembly arranged on one side of the conveying belt and an adjusting roller arranged on a conveying frame. The deviation rectifying assembly is connected with the catch wheel set and the adjusting roller, the catch wheel set abuts against the conveying belt to be used for detecting the deflection condition of the conveying belt, and the deviation rectifying assembly adjusts the angle of the adjusting roller to offset deflection of the conveying belt when the conveying belt deflects. The deflection condition of the conveying belt is detected through the catch wheel set, the posture of the deviation rectifying assembly is adjusted to offset the deflection of the conveying belt when the conveying belt deflects, and therefore it is guaranteed that the conveying belt does not collide with the machine frame, conveying equipment is kept in a stable running state, and the tobacco material conveying efficiency is guaranteed.

The application relates to the technical field of wire rope winding devices, in particular to a twisting and winding equipment which comprises a second machine base, a winding device arranged on the second machine base, a displacement driving device, a counterweight, a wire guide assembly and a traction assembly, a steel ring of the wire guide assembly is sleeved outside a wire winding roller of the winding device, the wire guide assembly and the counterweight are arranged on the two sides of an output end of the displacement driving device respectively and are connected at the head and the tail through a transmission component, two traction ends of the transmission component are arranged in an up-down mode along a Z-axis direction, one traction end of the transmission component is connected with the output end of the displacement driving device for transmission, the other traction end is connected with a second transmission wheel for transmission, and the wire guide assembly and the counterweight form a linkage transmission structure with tension through the transmission component. Through the tension linkage of the transmission component, the wire rope winding uniformity is improved, the load of the displacement driving device is reduced, the component impact and abrasion are reduced, and the equipment has the advantages of long service life, accurate and stable operation, high practicability and the like.

This application provides a daylily harvesting device based on a parallel robot, relating to the field of agricultural harvesting technology. The device includes a frame; the parallel harvesting device comprises multiple sets of drive arm assemblies, a motion platform, and an end-effector. One end of each drive arm assembly is connected to the motion platform via a transmission connection. The end-effector is mounted on the motion platform and used to perform the harvesting action. Each rotary drive assembly is connected to the frame, and the multiple rotary drive assemblies are respectively connected to the drive arm assemblies via a transmission connection. These rotary drive assemblies drive the end-effector to the corresponding position of the daylily to be harvested via the motion platform, allowing the end-effector to harvest the daylily. The rotary drive assemblies of the parallel robot-based daylily harvesting device are mounted on the frame, effectively reducing the inertia of the drive arm assemblies during movement. This allows the harvesting device to flexibly adjust the position of the end-effector, thus making the harvesting process more flexible.

The embodiment of the application provides a tension measuring device, and relates to the field of battery production equipment industry.The tension measuring component comprises a supporting seat, a tension sensor and a roller shaft component.The roller shaft component comprises a tension roller, two bearings and a supporting piece, the supporting piece is connected with the supporting seat, one end of the supporting piece is connected with the tension sensor, the two ends of the supporting piece in the axial direction are provided with bearing mounting spaces for assembling the two bearings respectively, and the two ends of the tension roller are connected with the two bearings respectively.The tension roller is used for contacting with a material line and is provided with a through hole extending along the axial direction of the tension roller.The gravity is reduced, the inertia of the tension roller is also reduced, the influence of the tension roller on the material line is smaller when the tension roller rotates, the influence of the inertia on the material line tension when the tension roller is driven to rotate is reduced, the precision of the material line tension measurement is improved, and the material line tension at any position in the whole machine material line can be conveniently measured through the magnetic attraction piece.

The utility model relates to the technical field of tension adjusting parts, and discloses a chemical fiber winding machine tension adjusting part which comprises a vertical plate, a limiting rod is fixedly installed on the front face of the vertical plate, a first limiting guide roller is rotatably installed outside the limiting rod, and a balance weight type tension adjusting mechanism is arranged on the front face of the vertical plate. According to the tension adjusting component of the chemical fiber winding machine, in the arranged balance weight type tension adjusting mechanism, in the using process, by means of a connecting supporting arm and a balancing weight arranged at the left end of a supporting rod, when the supporting rod rotates, the balancing weight moves in a limiting shell under the action of centrifugal force, and the rotational inertia of the supporting rod is changed through the combination of a lever and the balancing weight; during high-speed winding, the balancing weight increases the rotational inertia and inhibits shaking of the supporting rod, the inertia is reduced and the response speed is increased at a low speed, inertia impact caused by sudden change of fiber tension can be counteracted through self-adaptive adjustment of the balancing weight, and the situation that the tension is out of control is avoided.

The utility model provides a kind of rainfall simulation device for testing the waterproof performance of lamps and lanterns, it includes rack, tray and water supply system, rack is equipped with support slide bar and driving rod, driving rod is arranged with several coils, support slide bar is slid with rainfall seat, rainfall seat is equipped with the driving magnet matched with coil, rainfall seat is arranged with several drain holes, tray is below drain hole, tray is used to place the lamps and lanterns to be measured, water supply system is connected with drain hole pipeline, so that rainfall output falls on lamps and lanterns, at this time, coil is used to drive driving magnet to drive rainfall seat to shake and simulate wind and rain environment, and driving magnet drives rainfall seat to move and adjust position;The utility model belongs to the technical field of lamps and lanterns testing equipment.

The utility model discloses a core plate feeding mechanism, including feeding component, and feeding component is including feeding wheel, compression wheel and crossbeam, feeding wheel is equipped with several, several feeding wheel is installed on the main shaft, and the main shaft is rotatoryly installed on the frame and is connected with motor, compression wheel rotatoryly installs on the adjusting seat, and compression wheel sets up at the top of feeding wheel and is pressed together feeding, the circumference surface of compression wheel is equipped with the adhesive tape letting -place groove, and the crossbeam is equipped with the guide piece, and the guide piece is transversely seted up, adjusting seat sets up on the guide piece, and the transverse position of adjusting seat on the guide piece can be adjusted. The utility model discloses adopting the combination of feeding wheel and main shaft to form the feeding roller, not only reduces the processing, the installation difficulty and processing cost, and the overall weight is light, the inertia is small, and the feeding is stable and accurate, can also adjust the transverse position of compression wheel according to the adhesive tape position on the core plate surface, makes the adhesive tape letting -place groove of compression wheel and the adhesive tape on the core plate correspond, avoids the adhesive line, and the adjustment is convenient and high efficiency.

The application discloses a molten salt energy storage system for peak regulation of a thermal power unit, which comprises a first molten salt tank, a second molten salt tank and a heat exchange unit, the heat exchange unit is arranged between the first molten salt tank and the second molten salt tank, the heat exchange unit is used for heat exchange between molten salt and water or steam, and the heat exchange unit comprises a molten salt heat exchanger; the molten salt heat exchanger comprises a molten salt flow path and a water flow path, the inlet of the molten salt flow path is directly or indirectly connected with the first molten salt tank, and the outlet of the molten salt flow path is connected with the second molten salt tank; and the water flow path is connected in parallel with a first heated flow path of a low-pressure heater. The molten salt energy storage system disclosed by the application expels the low-pressure heater system through the molten salt heat exchanger, reduces steam extraction of the low-pressure heater, increases the steam quantity for work of a low-pressure cylinder, and further increases load and improves the load increasing rate, realizes rapid response of the system, realizes energy cascade utilization, and improves the energy storage density of the system.

The utility model discloses a piston type refrigeration compressor, including the casing, be equipped with the cylinder cavity on the casing, be equipped with piston and connecting rod in the cylinder cavity, be equipped with reticular groove on the cylinder cavity inner wall, reticular groove is used for storing lubricating oil, realize the oil film that forms in the cylinder cavity surface, reduce the friction between with piston, and the ridge line of reticular groove is handled and forms the platform, with the smooth transition of cylinder cavity inner wall, be convenient for the distribution and flow of lubricating oil in reticular groove, and the connecting rod includes the rod body, and the both ends of rod body are equipped with the connecting head, and the bottom of piston is equipped with the installation cavity, and the symmetrical connecting column of installation cavity is equipped with, and one connecting head is through the pivot and is located between the connecting column, realizes the rotary connection with piston, and the recess is equipped with in the piston, and the connecting column is hollow and is equipped with the through -hole, and the both sides of installation cavity are equipped with the through groove, realize the lightweight of piston, realize lubrication is sufficient, and the weight is lighter, and the operation is more stable.

The invention relates to a diaphragm, and particularly provides an MEMS technology-based variable diaphragm and a working method thereof, the variable diaphragm comprises a first part and a second part, the first part and the second part are combined to form the diaphragm, and when the first part and the second part are separated, the aperture of the diaphragm is changed; two sides of the first part and the second part are respectively fixed on the body through a cantilever beam, and the first part, the second part and the cantilever beam are suspended; the driving unit is used for driving the first part and the second part to separate and approach; the body is provided with a light through hole, and electrons sequentially penetrate through the diaphragm and the light through hole. The device has the advantages of high adjustment precision and the like, and is applied to electron microscopes.

The application discloses a two-dimensional laser scanning galvanometer device based on piezoelectric bimorph driving, belongs to the technical field of piezoelectric driving scanning galvanometer, and comprises a base, a circular hole is formed in the side wall of the base, a part of laser emitting devices penetrating into the base is installed at the circular hole, a first deflection lens group is installed on the side of the base, a second deflection lens group which is fixed on the base and is arranged perpendicularly to the first deflection lens group is installed below the first deflection lens group, and an upper cover plate is installed on the top of the base. The two-dimensional laser scanning galvanometer device based on piezoelectric bimorph driving solves the problems of dynamic performance contradiction, thermal drift and reliability limitation of the existing electromagnetic driving scanning galvanometer, fundamentally realizes high bandwidth, low heat consumption, wear-free precision beam scanning, has the characteristics of small and exquisite, convenient to carry and low cost, and is suitable for mass production and popular application.

The utility model discloses a rotor lamination of unipolar motor and unipolar motor, the end face of rotor lamination is provided with at least two magnetic steel grooves along the circumferential interval, the end face of rotor lamination still has the arc lightening hole of extending along the circumferential direction of rotor lamination, the arc lightening hole is located the inside of magnetic steel groove and is set up with magnetic steel groove one to one, the corresponding central angle of arc lightening hole on rotor lamination is same with the corresponding central angle of magnetic steel groove on rotor lamination. The corresponding central angle of arc lightening hole on rotor lamination is configured to be same with the corresponding central angle of magnetic steel groove on rotor lamination, can block the conduction path of the magnetic force line of motor shaft to the center of rotor lamination of permanent magnet, reduces the magnetic flux leakage, reduces the torque fluctuation, reduces the vibration noise. The arc lightening hole can also guide the magnetic force line from the permanent magnet pole smooth conduction to the silicon steel pole, avoids the local magnetic force saturation.

The utility model discloses a high-frequency response actuator driving connecting rod mechanism which comprises two bases, the two bases are symmetrically arranged, the two ends of each base are fixedly connected with supports, and the opposite ends of the two supports are provided with actuator driving connecting rod devices. The main connecting rod is of a hollow structure, the inertia of moving parts is reduced, the response frequency of the mechanism is improved, the hinged position is connected with the driven rod through the flexible hinge, friction loss is reduced, the structure is compact, the transmission efficiency is improved, and the mechanism can be conveniently integrated into automatic equipment; the connecting rod has rigid guiding and unbalance loading resisting capacity, the shaft pins at the two ends are separated by disassembling screws on the two sides through the arranged shaft pins, the clamping rings, the clamping grooves and the flange plates, disassembly and assembly of the actuator and the main connecting rod are achieved, the abraded connecting rod is convenient to maintain and replace, and the maintenance time of the actuator is shortened.

The utility model discloses a kind of wire drawing modules of take-up device, including the winding assembly and control assembly being arranged in shell;Winding assembly includes: wire carrier disc and wire reel shaft, and the counterweight of additional load wire reel rotation torque, wire carrier disc is rotatably connected in shell by wire reel shaft, at least one counterweight eccentric installation is on wire carrier disc;Control assembly includes swing piece and control piece being installed in shell.Further when user quickly pulls out data line, wire carrier disc and data line play certain protective effect, by reducing the inertia of wire carrier disc rotation, further relieve the tension of data line and take-up device connecting position, prolong the service life of take-up device and data line, eccentric installation counterweight on wire carrier disc makes overall structure more simple and compact, saves the cost of manufacture, realizes the stretching of data line random length, with pulling with stopping, and winding is automatically completed, very convenient and practical.

This application discloses an online power flow calculation method for isolated power grids in offshore oil and gas fields. The method comprises four core modules: static model construction, real-time data acquisition, dynamic topology identification, and online power flow calculation. In the static modeling stage, standardized models are established for each power grid component and unique indices are assigned, with parameters for submarine cables and transformers obtained from a dedicated parameter library. In the real-time data acquisition stage, dynamic data such as circuit breaker status and generator output are read from the platform monitoring system. Dynamic topology identification employs a node merging method, automatically dividing electrical islands based on switch status. In the online power flow calculation stage, second-level power flow solutions are performed using the PyPSa library, enabling real-time simulation of operational consequences. This method, through accurate isolated power grid modeling, generator control strategies adapted to isolated operation, and a dedicated risk warning mechanism, effectively solves the scheduling challenges posed by the prominent capacitive reactive power and variable operating modes of offshore power grids, significantly improving the safety and efficiency of power grid operation.

The application discloses a hip structure, a leg structure and a biped robot, and relates to the technical field of robots.The hip structure comprises a hip abduction assembly fixing seat, a hip abduction assembly, a hip pitch assembly and a hip roll assembly.The hip abduction assembly comprises a hip abduction connecting piece and a hip abduction joint.The hip pitch assembly comprises a hip pitch connecting piece and a hip pitch joint.The hip roll assembly comprises a hip roll connecting piece and a hip roll joint.The hip abduction connecting piece is fixedly installed on the hip abduction assembly fixing seat.The output end of the hip abduction joint is connected with the output end of the hip pitch joint.The hip pitch connecting piece is connected with the output end of the hip roll joint.The hip roll connecting piece is used for being connected with a thigh skeleton.The hip structure can reduce the end mass of the leg structure, reduce the moment of inertia, and thus improve the flexibility and endurance of the biped robot.

The utility model discloses a portable burn first-aid kit belongs to medical equipment technical field, including box, box cover, two double shoulder straps, two single shoulder straps, female buckle, sub buckle, two groups of rotating components, two groups of fixed components, placing subassembly and portable subassembly, and the box cover is set up in the upper surface of box, and two groups of fixed components all set up in one end of box cover, and two groups of rotating components set up respectively in the both sides of box, and one end of two single shoulder straps is fixedly connected with two groups of rotating components respectively, and the other end of two single shoulder straps is connected with female buckle and sub buckle respectively, and two double shoulder straps all are fixedly connected with box, and are symmetrically set up in one side of box, and placing subassembly sets up in the inside of box, and portable subassembly sets up in the upper surface of box cover, through above -mentioned setting, it is convenient for according to the need of actual rescue scene, selects suitable carrying mode to improve the portability of burn first-aid kit.

The application discloses a kind of single-path hydraulic rotary joints of multiple oil chambers, comprising: swing hydraulic cylinder, oil chamber connecting assembly, servo valve, valve guide, magnetic scale, first adapter plate, first support plate, second adapter plate, second support plate;The single-path hydraulic rotary joint of multiple oil chambers described in the application is characterized in that the output shaft hits axial blind hole and radial through-hole reduces the inertia of working shaft while forming oil circuit with auxiliary oil cylinder, so that the oil pipe and the support plate are relatively static, avoiding the influence of random swing of oil pipe on movement and interference, simplifying the oil pipe in multi-working-condition working space, avoiding the influence of excessive or excessive length of oil pipe on joint movement to improve efficiency, multiple dynamic and static sealing structure design ensures the sealing of multiple oil cylinders, with the advantages of simple structure, good sealing, high efficiency, long service life, high safety, etc.

The application discloses a lower limb auxiliary driving mechanism and a robot, which comprises a thigh assembly and a lower leg assembly connected with the thigh assembly, and a connecting end of a thigh connecting piece two and the lower leg assembly forms a knee joint. In the application, a constant force load mechanism is arranged on the thigh assembly, constant tension of a spring is converted into a compensation torque acting on the knee joint, so that the compensation torque can directly offset part or all of the bending moment generated by the weight of the lower limb on the knee joint, thereby realizing accurate compensation of the static load of the knee joint, reducing the driving burden when the joint maintains a posture, and the constant force load spring serves as a parallel auxiliary execution mechanism and jointly bears the load of the knee joint with a motor driving system. Through the parallel sharing mode, the joint load originally borne by the motor can be reasonably distributed, the motor works in a relatively stable and high-efficiency interval more, peak load is reduced, current impact is reduced, and overall driving efficiency is improved.

The present application relates to the technical fields of pressure cylinder, and discloses a speed-adjustable and fast-positioning pneumatic pressure cylinder, which comprises a cylinder body assembly, the inside of one end of the cylinder body assembly is internally provided with a pressure-assembly movable rod, the inside of the bottom of the cylinder body assembly is internally provided with a threaded rod, the inside of the middle of the cylinder body assembly is internally provided with a positioning assembly, the inside of the other end of the cylinder body assembly is internally provided with a piston assembly, the bottom of the cylinder body assembly is internally provided with a pneumatic assembly, the inside of the cylinder body assembly is internally provided with a pre-pressing area, the side of the threaded rod is internally provided with a threaded sleeve, the pneumatic assembly injects air into the pre-pressing area, so that the threaded rod rotates, the speed of the threaded rod is adjusted by adjusting the air speed, the speed of the pressure-assembly movable rod is adjusted under the cooperation of the threaded sleeve, and then the air injected by the pneumatic assembly pushes the piston assembly, so that the piston assembly compresses hydraulic oil, under the pushing of the hydraulic oil, the problem that the movable rod of the pneumatic pressure cylinder impacts parts at a fixed maximum speed and causes damage to the parts is avoided.

The utility model relates to fuel injector technical field especially relates to a kind of high-reliability light-weight fuel injector valve assembly, including valve assembly, the valve assembly is by valve stem and valve seat composition, the supporting disc surface is penetrated and is equipped with weight-reducing groove, the valve seat inside is equipped with balance groove;The utility model is by equipping balance groove in valve seat inside, first, the contact area between valve stem and valve seat can be reduced, further reduce the friction between valve stem and valve seat, avoid the jam situation that valve stem appears due to friction problem, make valve stem in the operation process can respond in time, guarantee the reliability of valve stem and valve seat in the operation process, second, because the friction between valve stem and valve seat reduces, the expansion time of valve stem and valve seat friction position can be reduced, avoid fuel from the position where valve stem and valve seat rubs leaks, further guarantee the stability of fuel injector operation, further guarantee the operation reliability of valve assembly.

The utility model discloses a kind of filtering devices for waste material recycling, including bottom plate, the bracket one is fixed in the top of bottom plate, the filter mechanism is arranged in the top of bottom plate, the disc is rotatably connected in the inner wall of bracket one by filter mechanism, semicircular plate two is fixedly connected in the opposite side of two discs, semicircular plate one is connected in the top of semicircular plate two by hinge, semicircular plate one and semicircular plate two are clamping structure, the side of filter mechanism away from the top of bottom plate is provided with winnowing mechanism, the inner wall of bracket one is rotatably connected in the rotating rod, the disc is fixed in the one end of rotating rod, driving disc two is fixed in the other end of rotating rod, belt cover is set between driving disc two and driving disc one, the one end of round rod penetrates the side of disc one. The utility model separates and filters magnetic metal by filter mechanism, and improves the separation rate of magnetic metal, increases the contact probability of magnetic adsorption, in addition, winnowing mechanism is responsible for processing non-magnetic mixture impurity.