9results about How to "Eliminate lateral force" patented technology

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 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.

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.