Patent ID: 11897737
Assignee: nan
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 2:
3. The winch according to claim 1, wherein the clutch gear shifter comprises a driving unit II (2.5 a) and an actuating unit II (2.5 b), and the driving unit II (2.5 a) adopts a hollow shaft spring return type bidirectional or unidirectional power type hydraulic cylinder or pneumatic cylinder, a hollow shaft spring reset type electromagnetic pulling switch or a cylindrical plurality of electromagnetic pulling switches can also be adopted; annular pull claws and push claws (2.5 a1, 2.5 a2) are arranged at the two sides of the thrust bearing (7a) at the end part and the inner diameter of the hollow shaft, when a plurality of cylindrical electromagnetic pull switches are adopted, the circular pull claws (2.5 a3) are arranged, and a certain gap is kept between the pull claws, the push claws and the thrust bearing (7a) when in neutral; two sets of displacement sensors (6.2) are symmetrically arranged in the axial direction of a sensor support (6.1), the sensor support (6.1) and a driving unit II (2.5 a) are arranged on a circular ring-shaped support (2.8), and the circular ring-shaped support (2.8) is fixed in a transmission shell (2.1) through bolts.