Limiting mechanism for carriage steerage gear

Abstract

The invention relates to a limiting mechanism of a steering device of a four-wheel vehicle, which comprises a steering wheel, a steering column, a middle rod and a traversing mechanism, the two ends of the middle rod are respectively connected with the steering column and the traversing mechanism by universal joints, the traversing mechanism is provided with a body which can contain a rack and a screw rod, the two ends of the rack are respectively connected with steering pull rods which are respectively connected on pin shafts of front wheels of the vehicle, then the front wheels of the vehicle can change the steering angle with the help of the rotation of the steering wheel, and the forward direction of the vehicle can be further changed; the key points are as follows: a segment differential part is arranged in the body of the traversing mechanism, the segment differential part can arrange a shaft sleeve, the shaft sleeve can just limit the formation stroke of the steering pull rods and form the limitation of the steering angle of the front wheels, when the maximum angle of the steering of the front wheels needs to be changed by using the structure, and the change of the steering angle of the front wheels can be achieved as long as the thickness of the shaft sleeve is changed, thereby simplifying the engineering of changing the steering angle of the front wheels.

Description

【Technical field】 [0001] The present invention relates to a restriction mechanism of a steering device of a four-wheel vehicle, in particular to a restriction mechanism of a steering device capable of simplifying the engineering of changing the steering angle of the front wheels. 【Background technique】 [0002] In order to control the direction of travel of the vehicle, the four-wheeled vehicle is generally provided with a steering device 1 in front of the driver's seat, such as figure 1 , 2, the steering device 1 includes a steering wheel 11, a steering column 12, an intermediate lever 14 and a steering machine 15, the steering wheel 11 is fixed on the upper end of the steering column 12, the lower end of the steering column 12 is connected by a The universal joint 13 is connected with the intermediate rod 14, and the lower end of the intermediate rod 14 is connected with the screw rod 152 of the steering machine 15 by another universal joint 13. The steering machine 15 has...

AI Technical Summary

Problems solved by technology

The conventional four-wheel vehicle steering device 1 can achieve the limitation of the front wheel steering angle by the above-mentioned structure, but it has the following deficiencies: 1. The anti-loose washer 162 of the ball joint 161 of the steering rod 16 The front edge 1511 of the main body 151 must be bumped frequently. Since the main body 151 is generally made of aluminum alloy material with low hardness, the front end edge 1511 of the main body 151 of the steering machine 15 will be deformed or even damaged. Replacement of machine 15

2. When the steering angle of the front wheels needs to be changed because the driving conditions change, the mold of the steering machine 15 body 151 must be re-opened to remanufacture the length of the body 151 that meets the new requirements of the steering angle of the front wheels. Undoubtedly, the cost of use of the steering device 15 will be greatly increased

[0003] In view of the deficiencies of the conventional four-wheel vehicle steering device 1, how to develop the four-wheel vehicle steering device 11 in response to the cost of engineering changes caused by changes in the front wheel steering angle, and the spherical shape of the steering rod 16 The anti-loosening washer 162 of the joint 161 collides with the front edge 1511 of the main body 151, resulting in the lack of durability of the steering gear 15, which is an urgent problem to be solved by the relevant industry.

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