Motor shaft for automobile windscreen wipers

Abstract

The invention discloses a motor shaft for automobile windscreen wipers, comprising a horizontal motor shaft. One end of the motor shaft is sleeved with a horizontal fixed cylinder. The motor shaft isrotationally connected to the inner wall of the fixed cylinder. The fixed cylinder is provided with a horizontal connecting slot on one side of the top end thereof. A vertical gear plate is arranged above the motor shaft. The motor shaft is provided with an external thread on the side wall of one side near the gear plate. The external thread and the gear plate are meshed with each other. An oil tank is fixed to the inner wall of one side, near the connecting slot, of the bottom end of the fixed cylinder. One outer end of the motor shaft away from the oil tank is sleeved with a shaft sleeve, and the vertical section of the shaft sleeve is square. The vibration of the motor shaft can be buffered, and the motor shaft can be prevented from vibrating drastically to mismatch the gear plate and affect normal use of windscreen wipers. Moreover, the external thread of the motor shaft can be lubricated, in order to improve the meshing effect of the motor shaft and the gear plate and prevent theproblem that the motor shaft and the gear plate cannot rotate normally after passivation.

Description

technical field [0001] The invention relates to the technical field of the automobile wiper, in particular to a motor shaft used for the automobile wiper. Background technique [0002] The power source of the wiper comes from the motor, which is the core of the entire wiper system. When the motor is working, it is usually integrated with the mechanical part of the deceleration. The function of the deceleration mechanism is to reduce the speed and increase the torque. The motor shaft drives the four-bar linkage through the gear plate, and the continuous rotation motion is changed into a left-right swing through the four-bar linkage. Then, the reciprocating swing of the wiper is realized by driving the shift fork and returning to the spring. The motor shaft will vibrate a lot during the working process. Since the motor shaft and the gear plate mesh with each other, if the motor shaft vibrates a lot, it will easily cause the motor shaft and the gear plate to be misaligned, whi...

AI Technical Summary

Problems solved by technology

The motor shaft will vibrate a lot during the working process. Since the motor shaft and the gear plate mesh with each other, if the motor shaft vibrates a lot, it will easily cause the motor shaft and the gear plate to be misaligned, which will affect the normal operation of the wiper. Here comes the bigger trouble, for which we propose motor shafts for car wipers

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