Patent ID: 11958566
Assignee: NEW KAILUNG GEAR CO., LTD
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A control device of an internal speed change device of a wheel hub for clutching operation comprising:
a rod (1);
a lever (3) installed on the rod (1); the lever (3) being connected to a controlling claw sliding block (2); the rod (1) having a guiding groove (11) which extends along a direction of a center axis of the rod (1); the lever (3) being installed in the guiding groove (11) of the rod (1) and being capable of moving forwards or backwards axially;
an electric sliding block (4) installed on a lever sleeve (5); the lever sleeve (5) serving to receive a back end of the lever (3); at least one guiding notch (51) formed at an inner side of the lever sleeve (5); the back end of the lever (3) extending into one of the at least one guiding notch (51); the back end of the lever (3) forming a teethed strip (31); at least one installing hole (52) formed on the lever sleeve (5) and the installing hole (52) connecting the respective guiding notch (51); the electric sliding block (4) being installed in one of the at least one installing hole (52); the electric sliding block (4) having a teethed surface (41) engaged to the teethed strip (31) of the lever (3); the electric sliding block (4) being installed with a second magnetic unit (42);
an electric bushing (6) located at an outer side of the lever sleeve (5);
a controlling ring (7) located at an outer side of the electric bushing (6); an inner side of the controlling ring (7) being installed with a first magnetic unit (71); an outer side of the controlling ring (7) is installed with a gear (72); and
wherein the electric sliding block (4) is rotatable; when the gear (72) is driven to rotate by an external force, the controlling ring (7) rotates synchronously; force of attraction or repulsion between the first magnetic unit (71) of the controlling ring (7) and the second magnetic unit (42) of the electric sliding block (4) drives the electric sliding block (4) to rotate so as to drive the lever (3) to move forwards or backwards axially; and moving of the lever (3) drives the controlling claw sliding block (2) to control clutching of the internal speed change device.