CN210391299U

CN210391299U - All-terrain vehicle and steering system thereof

Info

Publication number: CN210391299U
Application number: CN201920893004.5U
Authority: CN
Inventors: 李想; 范戈
Original assignee: Segway Technology Co Ltd
Current assignee: Segway Technology Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-04-24
Anticipated expiration: 2029-06-13

Abstract

The utility model discloses an all-terrain vehicle and a steering system thereof, steering system includes: a knuckle; an upper rocker arm rotatably disposed on the knuckle; the lower end of the front suspension is arranged on the upper rocker arm; a lower rocker arm rotatably disposed on the knuckle; and the limiting part is arranged on the steering knuckle or the lower rocker arm so as to limit the rotation of the steering knuckle by the lower rocker arm when the front suspension moves downwards and the steering knuckle rotates for a preset angle. From this, through setting up the locating part, can effectively restrict the knuckle and rotate, can satisfy the travelling comfort requirement of vehicle when guaranteeing vehicle trafficability characteristic.

Description

All-terrain vehicle and steering system thereof

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to an all-terrain vehicle and a steering system thereof is related to.

Background

At present, most all-terrain vehicles on the market have large turning diameters, so that the vehicles need large space in the turning process, and the passing ability and the adaptability of the vehicles are poor; moreover, the vehicle is limited by a steering system, a constant-speed driving shaft, ground clearance and the like, and the suspension stroke, particularly the lower stroke, of the vehicle is small, so that the driving comfort of the vehicle is directly influenced. The two points are mutually contradictory when the suspension system and the steering system are designed, namely the turning diameter is designed to be small, and the suspension stroke is correspondingly small; the suspension stroke is designed to be large, and the turning diameter is correspondingly large. Therefore, how to design an all-terrain vehicle with both passability and comfort is always a difficult problem in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model discloses an it is an object to propose the steering system of full all terrain vehicle, this steering system can make full all terrain vehicle trafficability characteristic good, travelling comfort good.

The utility model discloses an all terrain vehicle is further provided.

According to the utility model discloses an all-terrain vehicle's a steering system, include: a knuckle; an upper rocker arm rotatably disposed on the knuckle; the lower end of the front suspension is arranged on the upper rocker arm; a lower rocker arm rotatably disposed on the knuckle; and the limiting part is arranged on the steering knuckle or the lower rocker arm so as to limit the rotation of the steering knuckle by the lower rocker arm when the front suspension moves downwards and the steering knuckle rotates for a preset angle.

From this, through setting up the locating part, can effectively restrict the knuckle and rotate, can satisfy the travelling comfort requirement of vehicle when guaranteeing vehicle trafficability characteristic.

In some examples of the present invention, the stopper is provided at a lower end rear side of the knuckle.

In some examples of the present invention, the stopper is configured in a block shape and extends inward and rearward from a lower end rear side of the knuckle.

In some examples of the invention, the locating part is provided with a locating surface adapted to contact with the lower rocker arm, the locating surface being an inclined surface.

In some examples of the invention, the lower rocker arm is provided with a fitting surface adapted to fit with the limiting surface, the fitting surface being an inclined surface.

In some examples of the invention, a buffer is disposed on the limiting surface.

In some examples of the invention, the stop member and the knuckle are an integral part.

According to the utility model discloses an all-terrain vehicle, include all-terrain vehicle's a steering system.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a steering system of an all-terrain vehicle according to an embodiment of the invention;

fig. 2 is a partial structural schematic diagram of a steering system according to an embodiment of the present invention.

Reference numerals:

a steering system 100;

a knuckle 10; an upper rocker arm 20; a front suspension 30; a lower rocker arm 40; a stopper 50; a stopper surface 51;

a steering wheel 60; a steering gear 70; a steering tie rod 80; driving the shaft 90.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

A steering system 100 for an all-terrain vehicle according to an embodiment of the invention is described below with reference to fig. 1-2.

As shown in fig. 1 and 2, a steering system 100 of an all-terrain vehicle according to an embodiment of the present invention may include: the steering knuckle comprises a steering knuckle 10, an upper rocker arm 20, a front suspension 30, a lower rocker arm 40 and a limiting piece 50, wherein wheels are connected to the outer side of the steering knuckle 10, the upper rocker arm 20 can be rotatably arranged on the steering knuckle 10, the lower rocker arm 40 can be rotatably arranged on the steering knuckle 10, the upper rocker arm 20 and the lower rocker arm 40 are arranged in an up-and-down opposite mode, and a rotating structure can be a ball seat combined structure.

The lower end of the front suspension 30 is provided on the upper swing arm 20, for example, the upper swing arm 20 may be provided with a bracket on which the lower end of the front suspension 30 is mounted through a bushing assembly structure, and the front suspension 30 is rotatable to some extent relative to the upper swing arm 20. The steering system 100 further includes: the steering wheel 60 is connected with the steering machine 70 through the steering column, the steering machine 70 is connected with the steering knuckle 10 through the steering pull rod 80, and the steering knuckle 10 is connected with wheels. Wherein, the travel of the direction machine 70 can be 105 mm.

A stopper 50 is provided on the knuckle 10 or the lower swing arm 40 to restrict the rotation of the knuckle 10 by the lower swing arm 40 when the front suspension 30 moves downward and the knuckle 10 rotates by a predetermined angle. It is understood that the limiting member 50 may be provided on the knuckle 10, and may also be provided on the lower rocker arm 40.

The function of the stop 50 will be described below in connection with the particular driving conditions of an all terrain vehicle.

When the vehicle is steered, a driver applies torque to the steering wheel 60, the steering wheel 60 rotates and drives the steering machine 70 to move left and right through the steering column, the steering machine 70 is connected with the steering knuckle 10 through the steering pull rod 80, the steering knuckle 10 is connected with the wheels so as to drive the wheels to steer, and the larger the rotation angle of the wheels is, the smaller the turning diameter of the vehicle is.

The driving shaft 90 of the vehicle is connected with the wheels, power transmission is started, and the swing angle of the wheel end working range of the driving shaft 90 can be 50 degrees. The wheel end of the drive shaft 90 rotates as the wheel and the knuckle 10 rotate when the vehicle is turned. In the running process of the vehicle, along with the fluctuation of the road surface, the wheel can fluctuate up and down relative to the vehicle body, namely the up-down stroke of suspension, the larger the stroke is, the higher the capability of filtering up-down bump of the vehicle is, and the better the comfort is. The power end of the drive shaft 90 is connected to the vehicle body power system, such as a retarder, and when the vehicle moves downward, i.e., the front suspension 30 is moving downward, the angle increases as the difference in height between the two ends to which the drive shaft 90 is connected increases.

And the utility model discloses in, increase locating part 50 between knuckle 10 and lower rocking arm 40, when front suspension 30 downstream moved a position knuckle 10 to simultaneously, locating part 50 can play backstop limiting displacement between knuckle 10 and lower rocking arm 40, can restrict the knuckle 10 and turn to like this, avoids the fixed knot end angle of drive shaft 90 to exceed working range. Without the limiting member 50, the wheel turning angle is reduced, i.e., the vehicle turning diameter is increased, to achieve the same suspension stroke and the driving shaft 90 is within the working angle range.

Therefore, the limiting part 50 is arranged, so that the rotation of the steering knuckle 10 can be effectively limited, and the comfort requirement of the vehicle can be met while the passing property of the vehicle is ensured.

Alternatively, as shown in fig. 1 and 2, the stopper 50 is provided on the lower end rear side of the knuckle 10. This reduces the modification of the lower rocker arm 40, and the limiting member 50 can effectively limit the rotation of the knuckle 10, thereby satisfying both the passing performance and the comfort.

Specifically, as shown in fig. 2, the stopper 50 is configured in a block shape, and the stopper 50 extends inward and rearward from the lower end rear side of the knuckle 10. That is, the stopper 50 extends inward and rearward from its connection with the knuckle 10, inward mainly referring to a direction away from the wheel. The stopper 50 thus provided can come into contact with the lower rocker arm 40 in advance, thereby effectively restricting the rotation of the knuckle 10.

Optionally, the limiting member 50 is provided with a limiting surface 51 adapted to contact the lower rocker arm 40, the limiting surface 51 being a slope. The limiting surface 51 is used for contacting with the lower rocker arm 40, and the inclined limiting surface 51 can be better contacted and matched with the lower rocker arm 40, so that the rotation of the steering knuckle 10 can be effectively limited.

Also, the lower rocker arm 40 is provided with a mating surface adapted to mate with the stopper surface 51, the mating surface being an inclined surface. Therefore, the lower rocker arm 40 and the stopping effect on the steering knuckle 10 can be better and obviously achieved by the matching surface being actively matched with the limiting surface 51, and the rotation of the steering knuckle 10 can be more effectively limited.

Wherein, a buffer is arranged on the limiting surface 51. The arrangement of the buffer member can avoid hard collision between the limiting member 50 and the lower rocker arm 40, play a certain role in buffering, and prolong the service life of the steering knuckle 10 and the lower rocker arm 40. In particular, the buffer may be a rubber block.

Alternatively, as shown in fig. 1, the limiting member 50 and the knuckle 10 are integrally formed. This eliminates the process of assembling the knuckle 10 and the stopper 50, and makes the stopper 50 and the knuckle 10 high in strength as a whole.

According to the utility model discloses full all terrain vehicle, including the steering system 100 of above-mentioned embodiment.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A steering system for an all terrain vehicle, comprising:

a knuckle;

an upper rocker arm rotatably disposed on the knuckle;

the lower end of the front suspension is arranged on the upper rocker arm;

a lower rocker arm rotatably disposed on the knuckle;

and the limiting part is arranged on the steering knuckle or the lower rocker arm so as to limit the rotation of the steering knuckle by the lower rocker arm when the front suspension moves downwards and the steering knuckle rotates for a preset angle.

2. The steering system for an all-terrain vehicle of claim 1, characterized in that the stop is disposed rearward of the lower end of the knuckle.

3. The steering system for an all-terrain vehicle of claim 2, characterized in that the stop is configured in the shape of a block and extends inwardly and rearwardly from a lower end rear side of the knuckle.

4. The steering system of an all-terrain vehicle of claim 1, characterized in that the stop is provided with a stop surface adapted to contact the lower rocker arm, the stop surface being a ramp surface.

5. The steering system of an all-terrain vehicle of claim 4, characterized in that the lower rocker arm is provided with a mating surface adapted to mate with the stop surface, the mating surface being a ramp surface.

6. The steering system for an all-terrain vehicle of claim 4, characterized in that a bumper is disposed on the stop surface.

7. The steering system for an all-terrain vehicle of claim 1, wherein the stop and the knuckle are integrally formed.

8. An all-terrain vehicle, characterized in that it comprises a steering system of the all-terrain vehicle of any of claims 1-7.