Engineering vehicle steering machine with operating angle capable of being adjusted

Abstract

The invention discloses an engineering vehicle steering machine with the operating angle capable of being adjusted. The engineering vehicle steering machine comprises a bottom mounting assembly, a drive shaft assembly, a rotary fixation assembly, an upper shaft sleeve and a steering wheel. The bottom mounting assembly comprises a mounting bottom plate and a lower shaft sleeve. The lower shaft sleeve obliquely penetrates through the mounting bottom plate and is integrally welded with the mounting bottom plate along the external diameter portion of the lower shaft sleeve. The bottom of the drive shaft assembly penetrates through the lower shaft sleeve to be connected with a steering gear, and the top of the drive shaft assembly penetrates through the upper shaft sleeve to be connected with the steering wheel. The rotary fixation assembly is fixed to the inside of a cab of the complete machine after being hinged to the upper shaft sleeve. The drive shaft assembly comprises a lower-half shaft body, a middle shaft body and an upper-half shaft body. The middle shaft body is hinged to the lower-half shaft body and the upper-half shaft body through universal joints, and two hinged points are located between the upper shaft sleeve and the lower shaft sleeve. According to the engineering vehicle steering machine, the drive shaft assembly is divided into the lower-half shaft body, the middle shaft body and the upper-half shaft body, so that the problems that a cantilever is long and prone to shaking are solved, the steering machine can move flexibly, and adaptability is high.

Description

technical field [0001] The invention relates to a steering machine assembly of a vehicle, in particular to a steering machine of an engineering vehicle whose operating angle can be adjusted. Background technique [0002] In order to meet the comfort requirements of operators of different shapes, engineering vehicles set the operating angle of its steering machine to multiple optional angles. This angle-adjustable steering gear is more common in the automotive industry, but the length of the steering gear of the car is shorter, and the operating force is relatively smaller than that of the construction vehicle, so the steering gear of the whole machine is small in size, and the adjustment of the operating angle is easy to achieve. The direction of the engineering vehicle is relatively thick, so the scheme of sliding rod and sliding block with locking handle as described in the inclination limiting device of the steering column of the Chinese patent CN203780594 is usually adop...

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The purpose of the invention is to provide an engineering vehicle steering machine with easy installation, flexible angle adjustment and adjustable operating angle to solve the problems of difficulty in adjusting the angle of the steering machine of the existing engineering vehicle and the length of the cantilever is easy to shake.

The invention divides the transmission shaft assembly into three parts: the lower half shaft, the intermediate shaft and the upper half shaft, which solves the problem that the length of the cantilever is easy to shake, and makes the steering machine move flexibly and have strong adaptability

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