| 摘要 |
A driver. The driver comprises a worm (5), a worm gear (1) meshed with the worm (5), a gear clutch (2) separably meshed with the worm gear (1) and a clutch control assembly used for controlling the gear clutch (2) to axially move relative to the worm gear (1). The clutch control assembly comprises a crescent clutch handle (4) arranged on the outer side of the gear clutch (2) and a pressing plate (42) connected to the clutch handle (4). The pressing plate (42) is slidably sleeved on a drive shaft (3). The drive shaft (3) is further provided with a reset assembly used for enabling the gear clutch (2) to reset. The reset assembly comprises a fixed baffle (7) fixed to the drive shaft (3) and a reset spring (8) sleeved on the drive shaft (3). Driving teeth (13) are arranged on the outer edge of the inner end surface of the worm gear (1), driven teeth (21) are arranged on the outer edge of the inner end surface of the gear clutch (2), and the meshing planes of the driving teeth (13) and the driven teeth (21) are at a certain inclination angle. The driver has the advantages that labor is saved for clutch control, the driving teeth and the driven teeth are meshed closely, relative frictional force is small, and torque is large. |
