CN206437058U - A kind of new double-front-axle steering - Google Patents

Abstract

The utility model relates to a new double front axle steering system, which is characterized in that: the steering wheel assembly is fixedly connected to the steering column bracket and the hinge assembly, and the steering column bracket and the hinge assembly are sequentially connected to the lower steering shaft assembly, the middle Steering transmission shaft assembly, corner transmission box assembly, the corner transmission box assembly is connected to one end of the lower steering transmission shaft assembly arranged horizontally, the other end of the lower steering transmission shaft assembly is connected to the power steering gear assembly, and the power steering gear assembly The bottom of the bridge is connected to the right steering arm of the first bridge, the right steering arm of the first bridge is connected to the rear end of the left steering arm of the first bridge through the horizontally arranged steering tie rod assembly, and the transitional steering arm of the first bridge is connected to the vertical shaft assembly at the front end of the left steering arm of the first bridge , the front end of the steering transition tie rod assembly is connected to the transition steering arm shaft of the first bridge, and the rear end of the steering transition tie rod assembly is connected to the transition steering arm shaft of the second bridge. The layout is simple and reasonable, and the working synchronization of each component is good. sex.

Description

A new double front axle steering system

technical field

The utility model relates to a novel double front axle steering system, which belongs to a vehicle steering system, in particular to an application of a double front axle steering system matching an independent suspension or a multi-steering axle structure vehicle.

Background technique

With the continuous improvement of load capacity and handling performance, multi-axle or multi-axle steered vehicles are becoming more and more popular. In the past multi-axle steering vehicles, it was mainly equipped with non-independent suspension systems. The steering rocker arm and the middle swing arm were located outside the frame, and the arm length was too long, resulting in a large swing space. For vehicles with an independent suspension system, due to the complex wheel edge runout, the layout of the traditional scheme is difficult, and even there is no space to arrange the connection. In addition, in order to meet the requirements of steering force, existing multi-axle or multi-axle steering vehicles often use a larger steering gear or a combination of a large steering gear and a cylinder-type booster cylinder, resulting in problems such as low reliability and large space occupation.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a new type of vehicle steering system, which has a simple and reasonable layout, good synchronous operation of each component, and good expandability.

The technical scheme of the utility model is achieved in the following way: a novel double front axle steering system, characterized in that the steering wheel assembly is fixedly connected to the steering column bracket and the hinge assembly, and the steering column bracket and the hinge assembly are connected below the steering column bracket in turn The lower steering shaft assembly, the middle steering transmission shaft assembly, and the corner transmission box assembly. The corner transmission box assembly is connected to one end of the lower steering transmission shaft assembly arranged horizontally, and the other end of the lower steering transmission shaft The bottom of the power steering gear assembly is connected to the right steering arm of the first axle, the right steering arm of the first axle is connected to the rear end of the left steering arm of the first axle through the horizontally arranged steering tie rod assembly, and the vertical shaft assembly at the front end of the left steering arm of the first axle The upper part is connected to the transition steering arm of the first bridge, the front end of the steering transition tie rod assembly is connected to the transition steering arm shaft of the first bridge, the rear end of the steering transition tie rod assembly is connected to the transition steering arm shaft of the second bridge, and the bottom of the transition steering arm of the second bridge is connected to the left steering arm of the second bridge The vertical shaft assembly on the arm is connected, the left steering arm of the second axle is connected with the right steering arm of the second axle through the steering tie rod assembly, and the follower steering gear assembly is connected with the right steering arm of the second axle.

The positive effect of the utility model is that it is driven by the maintenance-free vertical shaft assembly and the transitional steering arm with a small size, and the swing angle of the transitional steering arm is small, which avoids the problems of large movement space, easy interference and difficult arrangement of the rod parts. At the same time, by changing the form of the transition steering arm, it can be applied to the steering system of a three-axle or multi-steering axle vehicle, which can better reflect the superiority of the system. In addition, the power assist of the steering system is provided by a combination of power steering gear and servo steering gear with similar structure, and different combinations can be provided according to the number of steering axles and steering force requirements.

Description of drawings

Fig. 1 is a schematic diagram of the dual front axle steering system of the present invention.

detailed description

Below in conjunction with accompanying drawing, the utility model is further described: as shown in Figure 1, a kind of novel double front axle steering system is characterized in that: steering wheel assembly 16 is fixedly connected on steering column bracket and hinge assembly 9, and steering column The bottom of the bracket and hinge assembly 9 is sequentially connected to the lower steering shaft assembly 7, the middle steering transmission shaft assembly 6, and the corner transmission box assembly 5, and the corner transmission box assembly 5 is connected to one end of the horizontally arranged lower steering transmission shaft assembly 2 , the other end of the lower steering transmission shaft assembly 2 is connected to the power steering assembly 1, the bottom of the power steering assembly 1 is connected to the right steering arm 17 of the first axle, and the right steering arm 17 of the first axle passes through the horizontally arranged steering tie rod assembly 11 It is connected with the rear end of the first bridge left steering arm 8, the vertical shaft assembly at the front end of the first bridge left steering arm 8 is connected with the first bridge transition steering arm 3, and the front end of the steering transition tie rod assembly 10 is connected with the first bridge transition steering arm 3 shafts, and the steering transition The rear end of the tie rod assembly 10 is connected to the transition steering arm 13 of the second bridge, the bottom of the transition steering arm 13 of the second bridge is connected to the vertical shaft assembly 4 on the left steering arm 12 of the second bridge, and the left steering arm 12 of the second bridge passes through the steering tie rod assembly 1 is connected with the right steering arm 14 of the second axle, and the follow-up steering gear assembly 15 is connected with the right steering arm 14 of the second axle.

The control chain is: steering wheel assembly 16 → steering column bracket and hinge assembly 9 → lower steering shaft assembly 7 → middle steering transmission shaft assembly 6 → corner transmission box assembly 5 → lower steering transmission shaft assembly 2 → power Steering gear assembly 1→right steering arm (first axle) 17→steering tie rod assembly 11→left steering arm (first axle) 8→vertical shaft assembly 4→first axle transition steering arm 3→steering transition tie rod assembly 10→ Second axle transition steering arm 13→vertical shaft assembly 4→left steering arm (second axle) 12→steering tie rod assembly 11→right steering arm (second axle) 14→following steering assembly 15, each steering axle is controlled by the steering wheel The assembly is under unified control, and the power steering gear is arranged horizontally to drive the steering arm to rotate, and through the vertical shaft assembly and the steering rod assembly to drive the follow-up steering gear to rotate and provide power assistance to drive the next steering axle to rotate; in this steering system, the transition steering The length and direction of the arm can be determined according to the ratio of the angle of rotation and the direction of rotation of each steering axle of the vehicle; the ratio of angle of rotation of each steering axle can also be realized by adjusting the length of the steering arm of the steering axle.

Claims (1)

1. A new double front axle steering system, characterized in that: the steering wheel assembly is fixedly connected to the steering column bracket and the hinge assembly, and the steering column bracket and the hinge assembly are connected to the lower steering shaft assembly and the middle steering drive in sequence. Shaft assembly, corner transmission box assembly, the corner transmission box assembly is connected with one end of the horizontally arranged lower steering transmission shaft assembly, the other end of the lower steering transmission shaft assembly is connected with the power steering gear assembly, and the bottom of the power steering gear assembly Connect the right steering arm of the first axle, the right steering arm of the first axle is connected with the rear end of the left steering arm of the first axle through the horizontally arranged steering tie rod assembly, the vertical shaft assembly at the front end of the left steering arm of the first axle is connected with the transitional steering arm of the first axle, and the steering The front end of the transition tie rod assembly is connected to the transition steering arm shaft of the first bridge, the rear end of the steering transition tie rod assembly is connected to the transition steering arm shaft of the second bridge, and the bottom of the transition steering arm of the second bridge is connected to the vertical shaft assembly on the left steering arm of the second bridge. The left steering arm of the bridge is connected with the right steering arm of the second axle through the steering tie rod assembly, and the follower steering gear assembly is connected with the right steering arm of the second axle.