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

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).