CN216733809U

CN216733809U - Rear suspension and bearing chassis thereof

Info

Publication number: CN216733809U
Application number: CN202220048131.7U
Authority: CN
Inventors: 管晟轩; 管勇
Original assignee: Harbin Houxuan Automobile Technology Development Co ltd
Current assignee: Harbin Houxuan Automobile Technology Development Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-06-14
Anticipated expiration: 2032-01-10

Abstract

The utility model relates to a rear suspension and a bearing chassis thereof, belonging to the technical field of commercial vehicles. The problem of the commercial car travelling comfort, stability are low is solved. Including sub vehicle frame, rear shock absorber and back gasbag, sub vehicle frame includes cyclic annular seat, crossbeam and crossbeam between, two the crossbeam symmetry sets up, and the front end of crossbeam is provided with cyclic annular seat, and the rear end of crossbeam is connected, two through the crossbeam between the rear end of crossbeam all is provided with bumper shock absorber, back gasbag. Has good comfort and stability.

Description

Rear suspension and bearing chassis thereof

Technical Field

The utility model relates to a rear suspension and a chassis thereof, belonging to the technical field of commercial vehicles.

Background

Commercial Vehicle, which is a Vehicle designed and technically designed to transport people and goods. The commercial vehicle comprises all cargo-carrying vehicles and passenger vehicles with more than 9 seats, and is divided into five types, namely a passenger vehicle, a freight vehicle, a semi-trailer tractor, a passenger vehicle incomplete vehicle and a freight vehicle incomplete vehicle. In the whole industry media, the concept of the commercial vehicle is mainly defined from different purposes, and the commercial vehicle is divided into two categories of a passenger car and a truck by custom. The chassis of the commercial vehicle is a main component of the commercial vehicle, and is used for supporting and mounting an automobile engine and parts and assemblies thereof, forming the integral shape of the automobile, and receiving the power of the engine to enable the automobile to move and ensure normal running. At present, the rear axle suspension of most commercial vehicle chassis on the market adopts a plate spring structure or four airbags, and the whole vehicle comfort and the stability are low.

Therefore, it is desirable to provide a rear suspension and a carrying chassis thereof to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problems of low comfort and stability of the commercial vehicle. The following presents a simplified summary of the utility model in order to provide a basic understanding of some aspects of the utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to determine the key or important part of the present invention, nor is it intended to limit the scope of the present invention.

The technical scheme of the utility model is as follows:

the utility model provides a rear suspension, includes sub vehicle frame, rear shock absorber and back gasbag, sub vehicle frame includes cyclic annular seat, tie-beam and crossbeam between, two the tie-beam symmetry sets up, and the front end of tie-beam is provided with cyclic annular seat, and the rear end of tie-beam is connected, two through crossbeam between the rear end of tie-beam all is provided with bumper shock absorber, back gasbag.

Preferably: the front ends of the two connecting beams form an included angle of 30-60 degrees, and the two connecting beams and the middle cross beam form an A shape.

The bearing chassis comprises a rear suspension, a chassis framework and a front suspension, wherein the front suspension and the rear suspension are respectively arranged on the front side and the rear side of the chassis framework.

Preferably: the chassis framework is arranged on the upper side of the auxiliary frame, a shock absorber and a rear air bag are arranged between the chassis framework and the auxiliary frame, and the shock absorber is located on the outer side of the rear air bag.

Preferably, the following components: the rear suspension further comprises a stabilizer bar, a rear axle, a limiting block and a rubber bearing, the annular seat arranged at the front end of the connecting beam is connected with the chassis framework through the rubber bearing, the rear axle is arranged in front of the cross beam between the rear axle and is connected with the connecting beam, the limiting block is arranged at the position corresponding to the upper part of the rear axle and is connected with the chassis framework, and the two ends of the stabilizer bar are connected with the chassis framework and the connecting beam respectively.

Preferably: the stabilizer bar comprises a cross pull rod, a first pressing plate, two rubber springs, a second pressing plate and a third pressing plate, wherein the first pressing plate and the third pressing plate are connected with the two sides of the second pressing plate through the rubber springs, one end of the cross pull rod penetrates through the first pressing plate, the two rubber springs, the second pressing plate and the third pressing plate, the cross pull rod is fixedly connected with the first pressing plate and the third pressing plate, the cross pull rod is connected with the second pressing plate in a sliding mode, the second pressing plate is connected with the chassis framework, and the other end of the cross pull rod is connected with the rear end of the connecting beam.

Preferably: the front suspension comprises a front air bag, a front shock absorber and a front axle, and the front axle is connected with the chassis framework through the front air bag and the front shock absorber which are symmetrically arranged.

The utility model has the following beneficial effects:

the device has low natural vibration frequency and small amplitude, and the suspension natural vibration frequency and the floor height do not change along with the load of the vehicle, thereby having good comfort and stability;

the front suspension and the rear suspension of the device are used in a matched manner, the front air bag and the rear air bag greatly increase the longitudinal and transverse center distances, the longitudinal pitching and the transverse left-right swinging of the commercial vehicle are reduced, the use experience of the commercial vehicle is improved, meanwhile, all parts of the vehicle can be effectively protected, and the service life of the whole vehicle is prolonged;

the parts in the device have universality, are easy to maintain and replace and popularize, and are suitable for fuel oil, pure electric vehicles or hydrogen energy commercial vehicles, so that the device is wide in application range.

Drawings

FIG. 1 is a top view of a rear suspension;

FIG. 2 is a cross-sectional view F-F of FIG. 1;

FIG. 3 is a schematic view showing a structure of a stabilizer bar;

FIG. 4 is a top view of the subframe;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a cross-sectional view A-A of FIG. 5;

FIG. 7 is an installation position diagram of a stopper;

FIG. 8 is a view showing the installation position of the rear axle;

FIG. 9 is a top view of a load-bearing chassis;

FIG. 10 is a side view of a load-bearing chassis;

fig. 11 is a cross-sectional view C-C of fig. 10.

In the figure, 1-chassis framework, 2-rear suspension, 3-front suspension, 21-auxiliary frame, 22-rear shock absorber, 23-rear air bag, 24-stabilizer bar, 25-rear axle, 26-limiting block, 27-rubber bearing, 211-annular seat, 214-connecting beam, 216-intermediate cross beam, 241-cross pull rod, 242-first pressing plate, 243-rubber spring, 244-second pressing plate, 245-third pressing plate, 31-front air bag, 32-front shock absorber and 33-front axle.

Detailed Description

In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows: the present embodiment is described with reference to fig. 1 to 6, and a rear suspension of the present embodiment includes a subframe 21, a rear shock absorber 22 and a rear airbag 23, the subframe 21 includes an annular seat 211, a connecting beam 214 and an intermediate cross beam 216, two connecting beams 214 are symmetrically disposed, the front end of the connecting beam 214 is provided with the annular seat 211, the rear end of the connecting beam 214 is connected through the intermediate cross beam 216, the rear end of the two connecting beams 214 is provided with the shock absorber 22 and the rear airbag 23, the front ends of the two connecting beams 214 form an included angle of 30 °, 45 ° or 60 °, the two connecting beams 214 and the intermediate cross beam 216 form an a-type, and the rear suspension has a simple structure and a light dead weight, and utilizes the characteristics of the rear airbag 23, such as low self-vibration frequency, softness, comfort and variable stiffness, so that the self-vibration frequency and the height of the entire vehicle cannot be changed with the load of the vehicle, and stability and comfort are improved.

The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 11, and the load-bearing chassis of the present embodiment includes a chassis frame 1, a rear suspension 2, and a front suspension 3, where the chassis frame 1 is a welded frame with a super-strong structure, the front and rear sides of the chassis frame 1 are respectively provided with the front suspension 3 and the rear suspension 2, and include an auxiliary frame 21, a rear shock absorber 22, and a rear airbag 23, the auxiliary frame 21 includes an annular seat 211, connecting beams 214, and a middle cross beam 216, the two connecting beams 214 are symmetrically arranged, supporting seats (217) are welded at the outer sides of the rear ends of the two connecting beams 214, the front end of the connecting beam 214 is provided with the annular seat 211, the rear ends of the connecting beams 214 are connected by the middle cross beam 216, the rear ends of the two connecting beams 214 are respectively provided with the shock absorber 22 and the rear airbag 23, an included angle of 45 ° is formed at the front ends of the two connecting beams 214, and reinforcing ribs are welded at the connecting portions of the front ends of the two connecting beams 214, the two connecting beams 214 and the middle beam 216 are spliced and welded to form an A type, the spliced part needs to be fully welded, the A type forms three-point bearing, the axle load is shared by the front end and the rear end of the auxiliary frame 21, the chassis framework 1 is arranged on the upper side of the auxiliary frame 21, the shock absorber 22 and the rear air bag 23 are arranged between the chassis framework 1 and the auxiliary frame 21, the shock absorber 22 is positioned on the outer side of the rear air bag 23, the rear suspension 2 further comprises a stabilizing rod 24, a rear axle 25, a limiting block 26 and a rubber bearing 27, an annular seat 211 arranged at the front end of the connecting beam 214 is connected with the chassis framework 1 through the rubber bearing 27, the rubber bearing 27 keeps the flexibility of the connecting part, the rear axle 25 is arranged in front of the middle beam 216, the rear axle 25 is connected with the connecting beams 214, the limiting block 26 is arranged at the corresponding position above the rear axle 25, the limiting block 26 is connected with the chassis framework 1, and the action range of the rear axle 25 is limited by the contact or separation of the limiting block 26 and the rear axle 25, the rear axle positioning of the device is accurate and reliable, the axle displacement and the tire abrasion are prevented, the installation is simple and convenient without adjustment, two ends of the stabilizer bar 24 are respectively connected with the chassis framework 1 and the connecting beam 214, the stabilizer bar 24 comprises a transverse pull rod 241, a first pressing plate 242, two rubber springs 243, a second pressing plate 244 and a third pressing plate 245, two sides of the second pressing plate 244 are connected with the first pressing plate 242 and the third pressing plate 245 through the rubber springs 243, one end of the transverse pull rod 241 penetrates through the first pressing plate 242, the two rubber springs 243, the second pressing plate 244 and the third pressing plate 245, the transverse pull rod 241 is fixedly connected with the first pressing plate 242 and the third pressing plate 245, the transverse pull rod 241 is slidably connected with the second pressing plate 244, the second pressing plate 244 is connected with the chassis framework 1, the other end of the transverse pull rod 241 is connected with the rear end of the connecting beam 214, the front suspension 3 comprises a front air bag 31, a front shock absorber 32 and a front axle 33, and the front axle 33 passes through a front air bag 31, a front air bag 31 and a front axle 33 which are symmetrically arranged, The front shock absorber 32 is connected with the chassis framework 1; the front suspension 3 and the rear suspension 2 are matched for use, the front air bag 31 and the rear air bag 23 greatly increase the longitudinal and transverse center distances, the longitudinal pitching and the transverse left-right swinging of the commercial vehicle are reduced, the use experience of the commercial vehicle is improved, meanwhile, parts of the vehicle can be effectively protected, the service life of the whole vehicle is prolonged, the parts in the device have universality, the maintenance and the replacement are easy, the service life is generally fifteen years, the popularization is easy, and the device is suitable for the fuel, pure electric or hydrogen energy commercial vehicles.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims

1. A load-bearing chassis, comprising: the chassis comprises a chassis framework (1), a rear suspension (2) and a front suspension (3), wherein the front suspension (3) and the rear suspension (2) are respectively arranged on the front side and the rear side of the chassis framework (1);

the rear suspension (2) comprises an auxiliary frame (21), a rear shock absorber (22) and a rear air bag (23), the auxiliary frame (21) comprises an annular seat (211), connecting beams (214) and an inter-connecting beam (216), the two connecting beams (214) are symmetrically arranged, the annular seat (211) is arranged at the front end of the connecting beam (214), the rear ends of the connecting beams (214) are connected through the inter-connecting beam (216), and the shock absorber (22) and the rear air bag (23) are arranged at the rear ends of the two connecting beams (214);

the front ends of the two connecting beams (214) form an included angle of 30-60 degrees, and the two connecting beams (214) and the connecting beam (216) form an A shape;

the front suspension (3) comprises a front air bag (31), a front shock absorber (32) and a front axle (33), wherein the front axle (33) is connected with the chassis framework (1) through the front air bag (31) and the front shock absorber (32) which are symmetrically arranged.

2. The load carrying chassis of claim 1, wherein: the chassis frame (1) is arranged on the upper side of the auxiliary frame (21), a shock absorber (22) and a rear air bag (23) are arranged between the chassis frame (1) and the auxiliary frame (21), and the shock absorber (22) is located on the outer side of the rear air bag (23).

3. A load-bearing chassis according to claim 2, wherein: rear suspension (2) still includes stabilizer bar (24), rear axle (25), stopper (26) and rubber bearing (27), the setting is connected with chassis skeleton (1) through rubber bearing (27) at cyclic annular seat (211) of the front end of tie-beam (214), rear axle (25) set up tie-beam (216) the place ahead within a definite time, rear axle (25) are connected with tie-beam (214), the top of rear axle (25) corresponds the position and is provided with stopper (26), stopper (26) are connected with chassis skeleton (1), the both ends of stabilizer bar (24) respectively with chassis skeleton (1), tie-beam (214) are connected.

4. A load carrying chassis according to claim 3, wherein: the stabilizer bar (24) comprises a cross-pull rod (241), a first pressing plate (242), two rubber springs (243), a second pressing plate (244) and a third pressing plate (245), the two sides of the second pressing plate (244) are connected with the first pressing plate (242) and the third pressing plate (245) through the rubber springs (243), one end of the cross-pull rod (241) penetrates through the first pressing plate (242), the two rubber springs (243), the second pressing plate (244) and the third pressing plate (245), the cross-pull rod (241) is fixedly connected with the first pressing plate (242) and the third pressing plate (245), the cross-pull rod (241) is connected with the second pressing plate (244) in a sliding mode, the second pressing plate (244) is connected with the chassis framework (1), and the other end of the cross-pull rod (241) is connected with the rear end of the connecting beam (214).