Differential lock provided with proximity switch

Abstract

The invention discloses a differential lock provided with a proximity switch. The differential lock comprises a sliding combining sleeve, a shifting fork, a shifting fork shaft capable of moving in the axial direction, a reset spring and the proximity switch, wherein the proximity switch is arranged on one side of the head of the shifting fork; when the reset spring is not compressed, the head of the shifting fork is positioned out of a detection area of the proximity switch, and the proximity switch is disconnected; and when the reset spring is compressed, the head of the shifting fork enters the detection area of the proximity switch, and the proximity switch is connected. Compared with the prior art, the proximity switch is adopted to replace a traditional mechanical pressure switch to avoid direct collision and contact, so that the service life is longer; and in addition, the proximity switch is smaller, and the part, stretching out of a main reducer assembly, of the proximity switch after being assembled is also shorter, so that the proximity switch can be effectively prevented from being damaged due to collision during assembling, transporting, hoisting, packaging and finished vehicle operation.

Description

technical field [0001] The invention belongs to the field of auto parts, in particular to a differential lock. Background technique [0002] The differential lock is a locking structure installed on the differential, and its function is to improve the passing ability of the car in muddy, icy and other bad road conditions. When one half shaft of the car is idling, the differential lock can quickly lock the differential, making the two half shafts rigidly connected, so that most of the torque or even all the torque can be transmitted to the non-idling half shaft, fully Use its adhesion to generate enough traction to keep the car moving. [0003] Usually, the differential lock of the heavy-duty drive axle is equipped with a mechanical pressure switch, and the working status of the differential lock is indicated by the on-off of the mechanical pressure switch. see figure 1 , which is a structural schematic diagram of an existing differential lock with a mechanical pressure sw...

AI Technical Summary

Problems solved by technology

Because the mechanical pressure switch is limited by the internal structure, its shape is large, and the part protruding from the main reducer assembly after assembly is also long, which makes it easy to be bumped and damaged during assembly, transfer, lifting, packaging and vehicle operation. damage

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