Steyr driving axle differential lock switch and Steyr drivign axle assembly

Abstract

The invention relates to a Steyr driving axle differential lock switch which is more reasonable in structure, low in cost, high in reliability and integrated. The Steyr driving axle differential lock switch comprises a working cylinder and a sensing switch, and a piston and a pushing rod are arranged in the working cylinder. The Steyr driving axle differential lock switch is characterized in that a magnetic part is arranged on the piston, the sensing switch is an electromagnetic sensing switch and fixed on an outer wall of the working cylinder, the magnetic part is a magnetic ring and sleeved on the piston, the electromagnetic sensing switch is fixed on the outer wall of the working cylinder through threaded connection, riveting connection or pasting connection, a spring is arranged in the working cylinder and connected with the piston in a butted manner, and the working cylinder is made by a cast aluminum material. The invention further provides a Steyr driving axle assembly applying the differential lock switch.

Description

technical field [0001] The invention relates to a differential lock switch, in particular to a differential lock switch applied to a Steyr drive axle, and also relates to a Steyr drive axle assembly using the differential lock switch. Background technique [0002] The existing Steyr drive axle differential lock pressure switch is a split structure, such as figure 1 As shown, the figure is a schematic diagram of the structure of the differential lock switch installed on the Stahl drive axle. The differential lock switch is divided into two parts: the working cylinder 1 and the pressure switch 3. The working cylinder 1 and the pressure switch 3 are installed separately. On the axle housing 5 of the driving axle, the pressure switch pin of the pressure switch 3 extends into the inside of the axle housing through the through hole on the axle housing. Connect the shift fork 6, one end of the shift fork 6 is connected with the sliding joint sleeve 7, and the other end is connecte...

AI Technical Summary

Problems solved by technology

If it is not suitable after adjustment, it is necessary to remove the pressure switch and replace it with pins of different lengths and specifications for readjustment. This method is cumbersome and inefficient

Since the pressure switch needs to be installed on the axle housing separately, it is necessary to process threaded holes or welding bosses on the housing, which requires high precision in related dimensions and positions, and high processing costs

Since the hole for assembling the pressure switch communicates with the inner cavity of the housing, if the seal between the switch and the housing and the seal of the switch itself are poor, oil leakage will occur.

When it is more serious, rust inside the switch will cause the signal transmission function to fail, causing customer complaints

In addition, this structure requires more matching parts: bent plates, pressure switch pins, bosses, slotted screws, etc., and the mechanical connection of each part not only increases the cost, but also has many failure points and low reliability.

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