38results about How to "Shock load relief" patented technology

The invention discloses a composite punch and a preparation method thereof, and relates to the technical field of dissimilar material welding. The composite punch includes a punch body, an intermediate layer and a substrate welded in sequence. Adding an intermediate layer between the punch body and the substrate can inhibit the formation of brittle compounds at the interface and reduce the hazard of joint residual stress; the thickness of the intermediate layer is from the center to the edge Gradual reduction can not only improve the welding strength of the joint at the edge of the intermediate layer, prevent cracks, but also allow the intermediate layer to absorb more impact loads, relieve the impact force on the composite punch, and make the composite punch better in mechanical properties And longer life. In the preparation method of the composite punch, the diffusion of the intermediate layer is used to complete the welding, which can prevent the formation of brittle intermediate metal at the joint, reduce the difference in linear expansion coefficient between the punch body and the matrix, and obtain a welded joint with good quality and no overheating structure and Heat-affected zone, parameters are easy to control, joint quality and performance are stable during mass production.

The invention relates to a swing arm mechanism capable of sending wall and floor tiles in a reciprocating and swinging mode. The swing arm mechanism comprises a swing arm assembly, a swing arm driving assembly, a base and a wall and floor tile grasping device. The swing arm assembly comprises a swing arm and a swinging wheel disc. The swing arm driving assembly comprises a speed reduction motor, a drive wheel, a guide wheel and a synchronization belt. The total center of gravity of the swing arm assembly and the wall and floor tile grasping device downwards falls from the highest point in the middle to the two sides to be adjacent to mutual symmetric limit positions. The swing arm mechanism is further provided with an air cylinder assisting assembly. The air cylinder assisting assembly comprises an air cylinder and a connection rod. When the total center of gravity of the swing arm assembly and the wall and floor tile grasping device is on the highest point and the air cylinder is located at the working limit position, the air cylinder works, one cavity is emptied and the other cavity is supplied with air. A local segment of the synchronization belt is fixed on the swinging wheel disc. The swinging wheel disc is a complete round wheel or a notched round wheel. The base comprises a shaft, a bearing, a supporting shaft and a fixed base. A swing arm is rapidly and accurately swung by means of a simple structure and a simple control manner, impact loads of the swing arm driving assembly are greatly reduced and the service life of the swing arm mechanism is effectively prolonged.

The invention discloses a self-balancing suspension structure for a self-balancing vehicle. It is a V-shaped structure formed by two flat and long self-balancing rods that are movably installed on the base through a shaft connection. The deformed inverted triangle shape, the universal link group is composed of two universal connecting rods, and the frame is two U-shaped splints. The suspension structure of the present invention can alleviate the vibration caused by the impact load and attenuation transmitted to the vehicle frame by the uneven road surface, and ensure the overall stability of the vehicle body. At the same time, it has the advantages of simple structure, small space occupation, convenient disassembly, low cost and convenient maintenance. , the advantages of good comprehensive performance.

The invention belongs to the technical field of vehicle components, in particular to an on-vehicle weapon turntable fixing structure. The on-vehicle weapon turntable fixing structure comprises a weapon turntable, a front circular steel tube and a back circular steel tube, wherein the weapon turntable is fixed on the front circular steel tube and the back circular steel tube in a four-point way; the weapon turntable is rigidly connected with the front circular tube through a front suspension bracket; and the weapon turntable is elastically connected with the back circular tube through an adjustable back suspension bracket assembly. By using the fixing structure provided by the invention, when a weapon platform is arranged, the heights of two suspension points on the back part can be adjusted by increasing and reducing gaskets, so that a front fixing surface and a back fixing surface are on the same plane; the turntable cannot be deformed after being tightened; two rubber suspension points on the back part have a buffering effect when the weapon turntable is subjected to compact sent from a vehicle body or the impact of counterforce during shooting of carried weapons; the stress deformation amount of the turntable is reduced; and therefore, the function of the weapon turntable is realized, and the service life of the weapon turntable is prolonged.

The invention relates to a mechanical emergency control device for a hydraulic lifting system on an emergency rescue vehicle, which comprises a first cantilever, a second cantilever, a connecting base plate and multiple sets of striker assemblies, the first cantilever and the second cantilever are respectively arranged in The first end and the second end of the connection base plate are connected, the connection base plate includes a first base plate, a second base plate, a third base plate and a fourth base plate, and a plurality of handles are arranged on the connection base plate, and between the first base plate and the second base plate, Between the second substrate and the third substrate and before the third substrate and the fourth substrate are rotatably connected, and a plurality of sets of striker assemblies are respectively arranged on the second substrate and the third substrate. In the present invention, multiple groups of striker assemblies are arranged on the connection base plate, and different striker assemblies are combined through the operating handle, thereby controlling the electromagnetic switch of the electro-hydraulic control cabinet on the emergency rescue vehicle, which is beneficial to realize hydraulic lifting on the emergency rescue vehicle The functions of lifting, loading, handling, braking and emergency stop of the system.

Provided is a fixed type constant velocity universal joint capable of suppressing heat generation under high load and during high-speed rotation to improve durability, and suppressing a contact resistance between a cage and inner and outer joint members to improve the constant velocityproperty. An axial offset amount of a curvature center of each track groove (22) of an outer joint member (23) and an axial offset amount of a curvature center of each track groove (25) of an inner joint member (26) are zero. Track grooves (22a, 22b) of the outer joint member (23) are formed alternately in a circumferential direction to be inclined in mutually opposite directions with respect to an axis, and track grooves (25a, 25b) of the inner joint member (26) are formed alternately in the circumferential direction to be inclined in mutually opposite directions with respect to the axis. An outer surface (24) of the inner joint member (26) is formed into a spherical surface (21b) which is held in slide-contact with an inner spherical surface (28b) of a cage (28). An inner surface (21) of the outer joint member (23) is formed into a cylindrical surface (21a).