18results about How to "Eliminate lateral force" patented technology

The invention discloses a gear and gear ring transmission high-speed and high-pressure axial connecting rod plunger device, which relates to the technical field of hydraulic transmission and control, and comprises a cylinder body rotatably arranged in a shell accommodating cavity, a transmission shaft in transmission connection with the cylinder body, a gear ring connected with the cylinder body, a crowned tooth return plate obliquely arranged and driven by the gear ring, and a plunger slidably arranged in a cylinder body hole, the sliding shoe friction mechanism is arranged in the containing cavity, the sliding shoe is attached to the wear-resisting lining plate, the sliding shoe is connected with the plunger through a connecting rod, the flow distribution friction mechanism is arranged in the containing cavity, the floating lining plate is connected with the cylinder body through a floating sleeve, and the flow distribution plate is connected with the rear end cover. By adopting gear and gear ring transmission, lateral force borne by a plunger in an axial plunger pump or a motor can be eliminated, and the risk that a plunger ball head portion loses efficacy is avoided. During working, the gear ring and the cylinder body rotate synchronously, and the crowned tooth return plate rotates synchronously under the action of the gear ring, so that the stress states of the sliding shoes and the plungers are greatly improved, the reliability of the structure is improved, and the service life of the structure is prolonged.

The utility model provides an angular contact ball bearing retainer, retainer injection molding device and angular contact ball bearing, wherein the bearing retainer comprises an annular frame body, a plurality of pockets are constructed on the annular frame body, each pocket penetrates through the inner and outer ring wall surfaces of the annular frame body along the radial direction of the annular frame body, and the pockets are uniformly arranged at intervals along the circumferential direction of the annular frame body; each pocket is defined by two oppositely-arranged planes and two oppositely-arranged cylindrical arc faces, the two planes are parallel to the radial face of the annular frame body, the two cylindrical arc faces are located on the same cylindrical face, and the axis of the cylindrical face is parallel to the central axis of the annular frame body. According to the utility model, the grease storage space in the pocket is increased, so that the lubricating effect on the rolling ball is improved; the contact area between the rolling ball and the retainer in the circumferential direction of the retainer during bearing operation is reduced, friction heat is reduced, and grease denaturation caused by too high temperature is avoided; the lateral force effect of the retainer on the rolling balls during bearing operation is eliminated, the stability of the bearing is improved, and the service life of the bearing is prolonged.

A die holder anti-side guide mechanism comprises an upper die holder, a key groove and a fourth bolt, an upper anti-side block is mounted at the bottom of the upper die holder through a first bolt, an upper key block is mounted on the upper die holder, a guide column is mounted on one side, located on the upper anti-side block, of the upper die holder, a lower anti-side block is mounted on a lower die holder through a fourth bolt, and a lower key block is mounted on the lower die holder. An upper die wear-resisting plate is installed on one side of the upper anti-roll block through a second bolt, a lower die wear-resisting plate is installed on one side of the lower anti-roll block through a third bolt, a through hole is formed in the position, corresponding to the guide column, of the lower anti-roll block, and a guide sleeve is installed in the through hole. And the assembly difficulty is reduced, guiding is accurate, positioning is accurate, lateral force is offset, the stability of a workpiece is guaranteed through the anti-lateral block, efficiency is improved, the production quality of automobile parts is improved, the operation safety of personnel is guaranteed, and the development cost is reduced.

This utility model provides a bending angle adjustment device, comprising: a first fixed part and a movable part, the fixed part being disposed on a forming machine, and the movable part being connected to the fixed part via several guide columns; a second fixed part being disposed on the forming machine, and a pressure block being disposed on the second fixed part; a driving block, one end of which is disposed on the first fixed part, and the other end passing through an operating hole on the movable part; a bending mechanism for rotating under the action of the driving block, disposed within the movable part; in use, the bending mechanism contacts the bending position under the push of the driving block, and pushes the bending position into contact with the pressure block; the bending angle adjustment device proposed in this utility model does not directly impact the bending part, reducing the probability of scratches on the bending part; in addition, since the bending mechanism does not directly impact the bending part, lateral force can be eliminated, thereby reducing the probability of cracks at the bending position and further reducing the scrap rate.

The utility model discloses a high-precision low-flow-resistance stop valve, belongs to the technical field of valves, and provides the following technical scheme for solving the problem that the flow pressure adjusting precision is reduced due to vibration of a valve clack of a traditional stop valve: the valve clack is connected with a valve rod through a plurality of groups of supporting assemblies which are uniformly distributed in the circumferential direction, and an inner rod and an outer rod form an axial telescopic structure; and the turntable is in running fit with the valve rod through the L-shaped connecting ring. An annular communicating groove is formed in the top of the valve clack, an annular connecting groove is formed in the corresponding position of the bottom of the valve clack, the two grooves are communicated through communicating holes in an annular array, and a sealing ring capable of being embedded into the connecting groove is arranged in the corresponding position of the inner wall of the valve cavity. When the valve is opened, fluid can directly penetrate through the valve clack through the communicating hole to reduce impact force, the supporting assembly counteracts lateral acting force of the fluid on the valve clack through the axial bearing structure, and bending deformation of the valve rod is prevented. According to the valve, the fluid control precision and the operation stability are effectively improved while the sealing performance is kept by optimizing the fluid channel shape and the valve clack supporting structure.

The invention discloses a bending machine sliding block self-adjusting joint connecting mechanism which comprises a sliding block, a connecting rod and a connecting rod. A U-shaped groove is formed in the sliding block, a mounting base is mounted in the U-shaped groove, and an axial cavity is formed in the mounting base. The lower joint piece is connected to the top of the mounting base, and a first axial hole is formed in the middle of the lower joint piece; the upper joint piece is connected to the top of the lower joint piece, the upper joint piece and the lower joint piece are matched in a self-adaptive mode, and a second axial hole is formed in the middle of the upper joint piece; the cover plate is fixedly mounted at the top of the upper joint part; a lifting lead screw is arranged in the lead screw nut in a matched mode, and the lifting lead screw and the lead screw nut are installed in the axial cavity, the first axial hole and the second axial hole. Meanwhile, the invention further discloses a sliding block moving assembly, and therefore the problems that the bending precision is poor and the service life is short due to the fact that the lead screw bears non-vertical force and the lead screw nut acts rigidly due to unbalance loading can be solved.

The utility model relates to the field of stamping dies, in particular to a vehicle body covering part side shaping die which comprises an upper die base, a lower die base and a side shaping assembly. A positive material pressing device is installed in the upper die base, and a fixed male die is installed in the lower die base. The side shaping assembly comprises a wedge, a side pressing device, a driving slotting tool, a pulley and a movable male die. The driving slotting tool is used for driving the pulley to slide in the sliding direction of the driving slotting tool after being pressed by the upper die base so as to obliquely and upwards push the movable male die to a target position matched with the fixed male die. A side shaping cutter block is connected in the inclined wedge; a side shaping guide plate is arranged at the bottom of the inclined wedge, so that the inclined wedge and the side material pressing device obliquely and downwards slide relative to the lower die base together until the side material pressing device and the side shaping cutter block are sequentially matched with the movable male die at the target position; the upper die base is provided with an anti-side base, and the top of the wedge is provided with an anti-side guide plate which abuts against the anti-side base to eliminate lateral force when the side shaping cutter block and the movable male die are matched for side shaping. By means of the structure, the quality, the size precision and the stability of a machined product can be guaranteed at the same time.

According to the transmission device of the small-sized multi-stage high-pressure wobble plate compressor, the radial force transmitted to the piston by the connecting rod is counteracted in a manner that the linear bearing is matched with the piston rod to form a sliding pair, particularly, the diameter of the high-pressure stage piston is small, and the force of the connecting rod is large; piston bending deformation caused by large radial force certainly generates hidden dangers such as sealing failure of a piston ring and serious abrasion between the piston and an air cylinder. The rotary support of the driving shaft is provided by a two-way thrust angular contact ball bearing which is higher in bearing capacity and more stable in operation, and radial force and two-way thrust can be borne at the same time. The rotary support of the wobble plate relative to the driving shaft is provided by a bidirectional thrust ball bearing structure consisting of the wobble plate, the driving shaft, the ball pressing ring and the balls, so that the wobble plate is more compact relative to a rotary mechanism of the driving shaft. Considering that the autorotation torque of the wobble plate is increased along with the increase of gas pressure, bevel teeth designed on the outer edge of the wobble plate are meshed with bevel teeth of a fixed bevel gear to serve as an anti-rotation mechanism, the arm of force is increased, and the meshing force of the bevel teeth in the anti-rotation mechanism is reduced.

The lateral-force-resistant tensioning hydraulic cylinder comprises a cylinder barrel, a piston rod and a sealing piece, a cylindrical hole used for installing the piston rod is formed in the center of the cylinder barrel, an oil inlet and outlet hole used for being communicated with the cylindrical hole is formed in the side wall of the cylinder barrel, a groove used for installing the sealing piece is formed in the inner wall of the cylindrical hole, and the width of the groove is larger than that of the sealing piece. The sealing piece is installed in the groove, copper rings are arranged in gaps between the two sides of the sealing piece and the groove in a surfacing mode, the piston rod is installed in the cylindrical hole with the sealing piece and the copper rings in a sliding mode, the copper rings make contact with the piston rod and serve as sliding supports, the cylinder barrel is of a square structure, and the cylinder barrel can bear larger bending moment and lateral force in appearance. In the installation process, the cylinder barrel can be directly pushed into a main engine structural part, an anti-rotation limiting plate does not need to be designed for a main engine, the cylinder barrel is suitable for being used in a narrow installation space, lateral force in the movement process of the rod body can be counteracted through the arrangement of the copper ring, and installation and maintenance are easy.

The present invention discloses a device for high-precision adaptive grinding of an inclined disc, which relates to the technical field of grinding devices, and is used to solve the technical problem that traditional high-precision grinding will have adverse effects on the operator's body and the environment, and is not conducive to on-site production safety management. Among them: a pressure device, a grinding device and a grinding platform are distributed in the upper, middle and lower parts of the space of a three-axis manipulator, the pressure device and the grinding device move synchronously, a plurality of inclined discs to be ground are installed in the grinding device, the pressure device provides pressure for the grinding device, the inclined disc to be ground contacts the grinding platform under the drive of the grinding device, and the three-axis manipulator drives the pressure device and the grinding device to move in a plane according to a preset trajectory to grind the inclined disc to be ground. The above-mentioned device for high-precision adaptive grinding of inclined discs has a simple structure, is easy to use, can process and grind a plurality of inclined discs at the same time, improves the processing efficiency, is safer and more reliable to use, and has high practicality.

The application discloses a kind of electric power steering system ball screw pair fatigue test tooling, comprising: drive device is used to drive the ball nut assembly of ball screw pair to rotate;Fixing device is used to fix ball nut assembly;Anti-rotation device is used to fix and compress rack screw rod of ball screw pair, and has limit function;Fixed device and anti-rotation device are all arranged on base device;Connecting device is used to connect the both ends of rack screw rod of ball screw pair, and connecting device has swing angle function;Loading device is connected with the end of connecting device away from ball screw pair, and is used to apply both ends load to ball screw pair.The electric power steering system ball screw pair fatigue test tooling of the application ensures the installation accuracy of ball screw pair fatigue test, and eliminates the lateral force received during the operation of ball screw pair fatigue test.The application also discloses a kind of electric power steering system ball screw pair fatigue test method.

The present invention relates to a damper assembly system, and belongs to the technical field of damper assembly. It comprises a frame with a work surface; a power indicator transmission assembly is connected with a power indicator detection clamp; a power indicator drive assembly is connected with the power indicator transmission assembly; a fixed axis unit having a first fixed axis assembly and a second fixed axis assembly; the first fixed axis assembly is configured to be in sliding contact with the end of the power indicator transmission assembly; the second fixed axis assembly is configured to be in contact with the pull rod assembly, and guide the axis of the pull rod assembly to be coaxial with the displacement axis M. Ensure that the power indicator transmission assembly and the pull rod assembly always maintain a coaxial state during the movement, and realize the precise transmission of force and the stability of the system. The fixed axis unit can effectively eliminate the lateral force caused by the axis offset, so that the force applied to the pull rod assembly is always transmitted in the axial direction, avoiding the interference of non-axial force.

This utility model relates to the field of die-cutting machine technology, specifically, to a five-layer corrugated cardboard die-cutting machine, including an operating table, on which a mounting frame is fixedly connected, and a support frame is fixedly connected to the bottom of the operating table. Side frames are fixedly connected to the surface and back of the support frame, and a top shell is fixedly connected between the two sets of side frames. It also includes pressure plates, of which four sets are symmetrically distributed in pairs on both sides of the blade. The pressure plates move up and down with the blade and are used to press the sides of the five-layer corrugated cardboard at the cutting point. By setting four symmetrically distributed pressure plates on both sides of the blade, synchronous pre-pressing of both sides of the cardboard is achieved before cutting. This structure can effectively counteract the lateral force generated when the blade presses down, preventing the cardboard from shifting or warping, thereby ensuring the flatness and dimensional consistency of the cut edge and significantly improving the die-cutting accuracy of complex graphics.

The utility model discloses a threaded hole forming structure of a medical disposable sterile pelvic floor anastomat injection mold, and relates to the technical field of injection molds, the threaded hole forming structure comprises a base, a first connecting plate is arranged on the top surface of the base, a second connecting plate is arranged on the side, away from the base, of the first connecting plate, and a third connecting plate is arranged on the side, away from the first connecting plate, of the second connecting plate; a fourth connecting plate used for achieving counter-acting force supporting is arranged on the side, away from the second connecting plate, of the third connecting plate, a lower mold used for supporting the mold is arranged on the side, away from the third connecting plate, of the fourth connecting plate, and an upper mold capable of being separated from and closed with the lower mold is arranged on the side, away from the fourth connecting plate, of the lower mold. A top plate is arranged on the top face of the upper mold, one side of the upper mold is rotationally connected with a clamping plate used for achieving closing of the lower mold and the upper mold, and an injection molding mechanism used for injection molding of the mold is arranged in the forming structure. The rejection rate is reduced.

The utility model discloses a kind of sand blasting devices for through-type shot blasting machine, the utility model relates to the technical field of shot blasting machine.The sand blasting device for through-type shot blasting machine includes shell, and the shell upper portion is provided with shot blasting mechanism: adjusting assembly, including the connecting frame of fixed installation in shell top, the upper portion of the connecting frame is movably installed with fixed frame, one end of the fixed frame movably installs connection oil cylinder, the bottom of the connection oil cylinder movably installs support block, the front side of the shell is fixedly installed with limit frame, and the protruding structure of the two sides of directional sleeve is used to distribute pressure to two junction points, avoid the side of directional sleeve to bear too large concentrated stress, while the transmission cylinder of upper and lower two sides is symmetrical, and left and right mirror image distribution, directional sleeve can be in rotation process, stress is more balanced, lateral force, eccentric load is cancelled, reduce the local stress concentration caused by uneven stress, to prevent directional sleeve from producing deformation in the process of angle adjustment.

The utility model discloses a kind of self-driving walking vehicles for tunnel, including the wheel group being connected with trolley frame, the wheel group includes the wheel being arranged below wheel box, wheel box is connected with the driving mechanism for driving wheel, wheel box includes the upper part and lower part of swing cooperation, upper part is hinged with trolley frame, lower part is used to connect wheel and driving mechanism, upper part and lower part between being provided with the steering device for driving the relative rotation of both. The utility model provides a kind of self-driving walking vehicles for tunnel, over structure innovation comprehensively solves the pain points such as " dependence on track, poor working condition adaptability, insufficient stability, low transport efficiency " of existing tunnel battery car, without track can realize advancing, retreating and steering, simultaneously with rail / trackless two kinds of working conditions, solve the limitation that existing battery car can only track travel;Wheel group can change the angle of radial self-adaptation relative to trolley frame, adapt to different diameter tunnel.

The invention relates to a rotary electric cylinder thrust testing device and an electric cylinder, and relates to the technical field of electric cylinder thrust testing. Comprising a test platform, a fixed seat is arranged on the surface of the test platform, a thrust sensor is slidably installed on the side wall of the fixed seat, a movable seat is fixed to the end of the thrust sensor, an adjusting assembly is arranged in the movable seat, a fixed disc is installed on the side wall of the fixed seat, and a limiting assembly is arranged in the fixed disc. Through the arrangement of the fixed seat, the thrust sensor, the movable seat and the limiting assembly, when a moving piston rod of the to-be-tested electric cylinder is in contact with and abuts against the movable seat to drive the thrust sensor to move synchronously, the limiting assembly clamps and radially limits the thrust sensor to restrain the thrust sensor to keep the central axis; it is guaranteed that the thrust sensor is always stably located on the optimal axial, non-eccentric and non-inclined stress axis, lateral force and radial component force are eliminated, thrust testing precision and data reliability are improved, and meanwhile the sensor is prevented from being damaged by unbalance loading.

The application discloses a kind of sprocket production manufacturing automated polishing equipment, belong to drive chain production technical field, the polishing equipment includes polishing workbench, the upper end of polishing workbench is equipped with clamping mechanism, the bottom of polishing workbench is detachably connected with first servo motor, the rotating end of first servo motor is detachably connected with the base portion of clamping mechanism, the upper end of polishing workbench is symmetrically arranged with two groups of swing mechanism, swing mechanism is rotatably connected with swing plate, second servo motor is detachably connected with polishing wheel by passing swing plate and being detachably connected with the rotating end of second servo motor, by swing type floating structure replacing traditional linear guide rod telescopic structure, polishing wheel is self-adapting swing with tooth profile around first rotating rod with swing plate, polishing reaction force is transmitted along swing arm axial in polishing process, eliminate lateral component force perpendicular to the direction of motion from the source, avoid the continuous eccentric wear caused by one-side contact of slide and guide rod.