Double-tire steering axle of engineering machinery

Abstract

The invention discloses an double-tire steering axle of engineering machinery. The double-tire steering axle comprises a steering axle housing (3), a left rotating arm frame (2) and a right rotating arm frame (5), wherein double tires (1) are arranged on the side surfaces of the left rotating arm frame (2) and the right rotating arm frame (5). No mounting inclination angles are arranged on the tires and a main pin. A steering oil cylinder (4) is installed on the steering axle housing (3), a push rod of the steering oil cylinder (4) is hinged to the left rotating arm frame (2) and the right rotating arm frame (5). According to engineering machinery double-tire steering axle, the main pin and the tires of a double-tire front axle have no inclination angles, thus reducing abrasion on the outer side of the tires and prolonging the service life of the tires; in addition, mounting holes of the steering oil cylinder are reserved in an differential case, the integrated inserting type mountingis achieved, thus being higher in strength and longer in the service life.

Description

technical field [0001] The invention relates to a steering axle of engineering machinery, in particular to a connection structure of a double tire steering axle. Background technique [0002] The current steering axle is usually a single-tire steering axle. During the use of the single-tire front axle, due to the inclination angle of the steering kingpin and the camber angle of the tire, after driving for a period of time, the outer edge of the tire is severely worn, which greatly reduces the service life of the tire. And in the case of the same weight of the whole vehicle, the weight shared by a single tire on the single-tire front axle is relatively small, and the contact area is small, and the ground contact pressure is large. During the process, the nodding phenomenon of the whole machine is obvious, and the comfort of the driver is reduced. The single-wheel front axle steering cylinder and the differential housing are installed separately, which has poor reliability. ...

AI Technical Summary

Problems solved by technology

[0002] The current steering axle is usually a single-tire steering axle. During the use of the single-tire front axle, due to the inclination angle of the steering kingpin and the camber angle of the tire, after driving for a period of time, the outer edge of the tire is severely worn, which greatly reduces tire life

And in the case of the same weight of the whole vehicle, the weight shared by a single tire on the single-tire front axle is relatively small, and the contact area is small, and the ground contact pressure is large. During the process, the nodding phenomenon of the whole machine is obvious, and the comfort of the driver is reduced

The single-wheel front axle steering cylinder and the differential housing are installed separately, which has poor reliability. There is an ear plate installed on the lower part of the steering oil cylinder, and the ear plate is fixed on the housing of the steering axle by bolts. After a period of use, the steering Oil cylinder is prone to oil leakage failure

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