阅读说明：本技术 一种无人驾驶车辆平衡悬架系统 (Balanced suspension system of unmanned vehicle ) 是由 成清 程光权 杜航 冯旸赫 黄森 于 2021-03-03 设计创作，主要内容包括：本发明公开了一种无人驾驶车辆平衡悬架系统,包括：车桥；钢板弹簧,第一钢板弹簧、第二钢板弹簧分别设于车桥的两端；第一空气弹簧固定设于第一钢板弹簧的两端,第二空气弹簧分别设于所述第二钢板弹簧的两端；扭力平衡架,扭力平衡架包括“U”形扭力架、气囊、扭力底板和扭力弹簧,“U”形扭力架的中部销接于所述车桥上,“U”形扭力架的两端分别固定设有气囊,气囊的底端设有扭力底板,扭力底板盖设于压片板的底端,扭力底板、压片板固定连接,“U”形扭力架的两端分别与扭力弹簧固定连接,扭力弹簧的另一端与车桥固定连接；车架固定设于第一空气弹簧、第二空气弹簧的上方。本发明系统可以实现各桥之间载荷平衡,同时考虑了舒适性的问题。(The invention discloses a balanced suspension system of an unmanned vehicle, which comprises: an axle; the first steel plate spring and the second steel plate spring are respectively arranged at two ends of the axle; the first air springs are fixedly arranged at two ends of the first steel plate spring, and the second air springs are respectively arranged at two ends of the second steel plate spring; the torsion balance frame comprises a U-shaped torsion frame, air bags, a torsion bottom plate and a torsion spring, wherein the middle part of the U-shaped torsion frame is connected to the axle in a pin mode, the air bags are fixedly arranged at two ends of the U-shaped torsion frame respectively, the torsion bottom plate is arranged at the bottom end of each air bag, the torsion bottom plate is arranged at the bottom end of the pressing plate in a covering mode, the torsion bottom plate and the pressing plate are fixedly connected, two ends of the U-shaped torsion frame are fixedly connected with the torsion spring respectively, and the other end of the torsion spring is fixedly connected with the axle; the frame is fixedly arranged above the first air spring and the second air spring. The system can realize load balance among bridges, and simultaneously considers the problem of comfort.)

1. An unmanned vehicle counterbalanced suspension system, comprising:

an axle;

the steel plate spring comprises a first steel plate spring and a second steel plate spring, and the first steel plate spring and the second steel plate spring are respectively and fixedly arranged at two ends of the axle;

the air springs comprise a first air spring and a second air spring, the first air spring is fixedly arranged at two ends of the first steel plate spring, and the second air spring is respectively fixedly arranged at two ends of the second steel plate spring; the end surfaces of the first air spring and the second air spring close to the inner sides are fixedly provided with a pressing plate;

the torsion balance frame comprises a U-shaped torsion frame, air bags, a torsion bottom plate and a torsion spring, the middle part of the U-shaped torsion frame is connected to the axle in a pin mode, the air bags are fixedly arranged at two ends of the U-shaped torsion frame respectively, the torsion bottom plate is fixedly arranged at the bottom end of each air bag, the torsion bottom plate is arranged at the bottom end of the pressing plate in a covering mode, the torsion bottom plate and the pressing plate are fixedly connected, the U-shaped torsion frame, the first air spring and the second air spring form a Z shape, two ends of the U-shaped torsion frame are fixedly connected with the torsion spring respectively, and the other end of the torsion spring is fixedly connected with the axle;

and the frame is fixedly arranged above the first air spring and the second air spring.

2. The balanced suspension system for an unmanned vehicle according to claim 1, wherein the air bag is made of an elastic material and filled with air.

3. The unmanned vehicle balanced suspension system of claim 1, wherein threaded through holes are formed through the torsion base plate and the pressure plate, and fastening screws are connected to the threaded through holes in a threaded manner.

4. The balanced suspension system for an unmanned vehicle as in claim 1, wherein the torsion spring is housed within a hollow sleeve, the hollow sleeve being fixedly attached to the axle.

5. The unmanned vehicle counterbalanced suspension system of claim 1, wherein the hollow sleeve is "L" shaped.

Technical Field

The invention relates to the technical field of unmanned vehicles, in particular to a balanced suspension system of an unmanned vehicle.

Background

The vehicle suspension system has the functions of supporting a vehicle body, buffering vibration, transferring force and the like, mainly dominates the driving characteristics of a vehicle, has important influence on the trafficability, smoothness and safety of the whole vehicle, and is the main content of the general layout design and motion check of the vehicle. The suspension system of the multi-axle vehicle with three or more axles has the characteristic of static and indeterminate, and the more the number of the axles is, the higher the static and indeterminate order is. In order to adjust the axle load of each axle, a balancing mechanism is often adopted to connect a plurality of axles, and a two-axle and three-axle balancing suspension is common.

At present, a suspension system of an unmanned automobile mainly adopts a single-axle double-leaf spring suspension, when the automobile needs to go up and down a slope or pass through a hollow uneven road, the height difference between each axle is large, the single-axle double-leaf spring suspension system cannot realize load balance between each axle, single axle overload is easily caused, and even axle damage or tire burst can be caused in serious cases; meanwhile, the problem of how to improve the comfort while preventing the axle from being damaged or the tire from being burst is also considered.

Disclosure of Invention

In view of this, the invention provides a balanced suspension system for an unmanned vehicle, which can realize load balance among bridges and simultaneously consider the problem of comfort.

In order to achieve the purpose, the invention adopts the following technical scheme:

an unmanned vehicle counterbalanced suspension system comprising:

an axle;

the steel plate spring comprises a first steel plate spring and a second steel plate spring, and the first steel plate spring and the second steel plate spring are respectively and fixedly arranged at two ends of the axle;

the air springs comprise a first air spring and a second air spring, the first air spring is fixedly arranged at two ends of the first steel plate spring, and the second air spring is respectively fixedly arranged at two ends of the second steel plate spring; the end surfaces of the first air spring and the second air spring close to the inner sides are fixedly provided with a pressing plate;

the torsion balance frame comprises a U-shaped torsion frame, air bags, a torsion bottom plate and a torsion spring, the middle part of the U-shaped torsion frame is connected to the axle in a pin mode, the air bags are fixedly arranged at two ends of the U-shaped torsion frame respectively, the torsion bottom plate is fixedly arranged at the bottom end of each air bag, the torsion bottom plate is arranged at the bottom end of the pressing plate in a covering mode, the torsion bottom plate and the pressing plate are fixedly connected, the U-shaped torsion frame, the first air spring and the second air spring form a Z shape, two ends of the U-shaped torsion frame are fixedly connected with the torsion spring respectively, and the other end of the torsion spring is fixedly connected with the axle;

and the frame is fixedly arranged above the first air spring and the second air spring.

Preferably, the air cell is made of an elastic material, and is filled with air.

Preferably, threaded through holes are formed in the torsion bottom plate and the pressing plate in a penetrating mode, and fastening screws are connected to the threaded through holes in an internal thread mode.

Preferably, the torsion spring is sleeved in a hollow sleeve, and the hollow sleeve is fixedly arranged on the axle.

Preferably, the hollow sleeve is "L" shaped.

Compared with the prior art, the invention has the beneficial effects that:

(1) when the load on the frame is small, the first air spring and the second air spring play a role in supporting, so that the comfort is improved;

(2) the first steel plate spring and the second steel plate spring are connected by the U-shaped torsion frame, so that when a vehicle runs on a downhill or on a pothole road surface, the height difference is adapted to the height difference through swinging a corresponding angle when the height difference occurs between the first steel plate spring and the second steel plate spring, and the first steel plate spring and the second steel plate spring are ensured to land simultaneously, so that the load distribution between two bridges is effectively balanced, and the overload of a single bridge is prevented;

(3) the U-shaped torsion frame is pinned on the axle and can rotate freely to a certain degree, two ends of the U-shaped torsion frame are connected with the torsion spring to generate reverse torsion, so that vibration is prevented, stability and comfortableness are guaranteed, and the force enables the rear axle not to affect the steering characteristic of the whole vehicle and improves the straight-line driving capability.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is an overall top view of the present invention;

fig. 3 is an overall right side view of the present invention.

In the figure: 1. an axle; 2. a frame; 3. a first leaf spring; 4. a second leaf spring; 5. a first air spring; 6. a second air spring; 7. a pressing plate; 8. a U-shaped torsion frame; 9. an air bag; 10. a torsion base plate; 11. a torsion spring; 12. fastening screws; 13. a hollow sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-3, an unmanned vehicle counterbalanced suspension system includes an axle 1, leaf springs, air springs, a torsion equalizer, and a frame 2.

This leaf spring includes first leaf spring 3, second leaf spring 4, and first leaf spring 3, second leaf spring 4 are fixed respectively and are located the both ends of axle 1.

The air spring comprises a first air spring 5 and a second air spring 6, wherein the first air spring 5 is fixedly arranged at two ends of a first steel plate spring 3, and the second air spring 6 is respectively fixedly arranged at two ends of a second steel plate spring 4; the end surfaces of the first air spring 5 and the second air spring 6 close to the inner sides are fixedly provided with a pressing plate 7.

This torsion balance frame includes "U" shape torsion frame 8, gasbag 9, torsion bottom plate 10 and torsion spring 11, "U" shape torsion frame 8's middle part pin joint is on axle 1, "U" shape torsion frame 8's both ends are fixed respectively and are equipped with gasbag 9, gasbag 9 is made by elastic material, is full of the air in it, gasbag 9's bottom mounting is equipped with torsion bottom plate 10, torsion bottom plate 10 lid is located the bottom of clamping piece board 7, torsion bottom plate 10, clamping piece board 7 fixed connection, specifically: threaded through holes are formed in the torsion bottom plate 10 and the pressing plate 7 in a penetrating mode, and fastening screws 12 are connected to the threaded through holes in an internal thread mode.

The U-shaped torsion frame 8, the first air spring 5 and the second air spring 6 form a Z shape, two ends of the U-shaped torsion frame 8 are respectively fixedly connected with a torsion spring 11, the other end of the torsion spring 11 is fixedly connected with the axle 1, and specifically: the torsion spring 11 is sleeved in the hollow sleeve 13, the hollow sleeve 13 is L-shaped, and the hollow sleeve 13 is fixedly arranged on the axle 1.

The main frame 2 is fixedly arranged above the first air spring 5 and the second air spring 6.

The working principle of the invention is as follows;

(1) when the load on the frame is small, the first air spring and the second air spring play a role in supporting, so that the comfort is improved;

(2) the first steel plate spring and the second steel plate spring are connected by the U-shaped torsion frame, so that when a vehicle runs on a downhill or on a pothole road surface, the height difference is adapted to the height difference through swinging a corresponding angle when the height difference occurs between the first steel plate spring and the second steel plate spring, and the first steel plate spring and the second steel plate spring are ensured to land simultaneously, so that the load distribution between two bridges is effectively balanced, and the overload of a single bridge is prevented;

(3) the U-shaped torsion frame is pinned on the axle and can rotate freely to a certain degree, two ends of the U-shaped torsion frame are connected with the torsion spring to generate reverse torsion, so that vibration is prevented, stability and comfortableness are guaranteed, and the force enables the rear axle not to affect the steering characteristic of the whole vehicle and improves the straight-line driving capability.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.