CN222347181U

CN222347181U - Commercial vehicle cab rear suspension system with cross beam

Info

Publication number: CN222347181U
Application number: CN202420916155.9U
Authority: CN
Inventors: 马阳; 王马强; 冯朝; 张蓉丽; 齐海超
Original assignee: Shaanqi Group Commercial Vehicle Co ltd; Shaanxi Automobile Group Co Ltd
Current assignee: Shaanqi Group Commercial Vehicle Co ltd; Shaanxi Automobile Group Co Ltd
Priority date: 2024-04-29
Filing date: 2024-04-29
Publication date: 2025-01-14
Anticipated expiration: 2034-04-29

Abstract

The utility model relates to a rear suspension system of a commercial vehicle cab with a crossbeam, comprising a crossbeam, a rear suspension lower bracket and a hydraulic lock; the crossbeam is an inverted U-shaped structure; the two ends of the crossbeam are respectively connected to the rear suspension lower bracket and the hydraulic lock; the utility model adds a crossbeam on the basis of the rear suspension system of the commercial vehicle cab, improves the torsional resistance of the suspension system, improves the riding comfort of the commercial vehicle, and reduces the fatigue of the driver.

Description

Commercial vehicle cab rear suspension system with cross beam

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to a rear suspension system with a cross beam for a cab of a commercial vehicle.

Background

In commercial vehicle vibration damping systems, the cab suspension system is an extremely important component, which is of great importance to ensure vehicle safety, comfort and reliability. The existing cab rear suspension system is complicated, the support is too heavy, the operation is difficult in assembly, the consumption cost is high, the riding comfort, the light weight and the cost are not dominant, and the design and development of the commercial vehicle cab rear suspension system with the cross beam are designed for ensuring the superior vibration reduction performance and comfort of the existing vehicle type and simultaneously realizing the requirements of light weight and cost reduction.

Disclosure of utility model

The utility model aims at overcoming the defects of the prior art and providing a commercial vehicle cab rear suspension system with a cross beam.

The utility model is realized by adopting the following technical scheme:

A rear suspension system of a commercial vehicle cab with a cross beam comprises the cross beam, a rear suspension lower bracket and a hydraulic lock, wherein the cross beam is of an inverted U-shaped structure, and two ends of the cross beam are respectively connected with the rear suspension lower bracket and the hydraulic lock.

Preferably, the cross beam comprises a tubular cross beam and reinforcing brackets arranged at two ends of the tubular cross beam, and a plurality of cross beam mounting holes are formed in two sides of each reinforcing bracket.

Preferably, the rear suspension lower support comprises a tubular upright post, a frame and a rear suspension shock absorber mounting support are arranged at the bottom of the tubular upright post, a hydraulic lock support is arranged at the top of the tubular upright post, and a bolt sleeve is arranged below the tubular upright post and the hydraulic lock support.

The hydraulic lock is provided with a hydraulic lock upper mounting hole, a hydraulic lock locking hook and a hydraulic lock lower mounting hole respectively, the rear suspension shock absorber is arranged between the hydraulic lock lower mounting hole and the frame and rear suspension shock absorber mounting bracket, the rear suspension locking hook is arranged on the hydraulic lock locking hook, and the hydraulic lock bracket is arranged on the hydraulic lock upper mounting hole.

Preferably, the rear suspension lock hook comprises a longitudinal beam connecting bracket, a lock bolt mounting bracket arranged at the bottom of the longitudinal beam connecting bracket, and a sleeve and a lock pin arranged at the joint of the lock bolt mounting bracket and the hydraulic lock, wherein the sleeve is provided with a taper, and the middle layer of the lock pin is provided with a rubber shock-absorbing layer.

Preferably, the expansion water tank support is connected with the beam mounting hole of the right reinforcing support.

Preferably, the device also comprises a T-shaped oil pipe bracket, wherein the T-shaped oil pipe bracket is connected with the left bolt sleeve.

Preferably, the rear suspension damper is tangent to the hydraulic lock rotation circle.

Compared with the prior art, the utility model has the following beneficial technical effects:

According to the utility model, the cross beam is arranged, and the two ends of the cross beam are respectively connected with the hydraulic lock and the rear suspension lower bracket together, so that the torsion resistance of the suspension system is improved, the riding comfort of the commercial vehicle is improved, and the fatigue feeling of a driver is reduced.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the whole structure of the present utility model;

FIG. 3 is a schematic view of the beam structure of the present utility model;

FIG. 4 is a schematic view of the tubular post structure of the present utility model;

FIG. 5 is a schematic view of a rear shackle of the present utility model;

FIG. 6 is a schematic view of a hydraulic lock according to the present utility model;

FIG. 7 is a schematic view of a T-shaped oil pipe bracket structure according to the present utility model;

fig. 8 is a schematic view of the expansion tank bracket structure of the present utility model.

Reference numerals illustrate:

1. The hydraulic lock comprises a rear suspension lock hook, a sleeve, a lock pin, a cross beam, a hydraulic lock, a 5-1 hydraulic lock upper mounting hole, a 5-2 hydraulic lock locking hook, a 5-3 hydraulic lock lower mounting hole, a 6, T-shaped oil pipe bracket, a 7, a rear suspension shock absorber, a 8, a rear suspension lower bracket, a 9, a frame, a 10, an expansion tank bracket, a 11, a longitudinal beam connecting bracket, a 12, a hydraulic lock bracket, a 13, a bolt sleeve, a 14, a tubular upright post, a 15, a frame and a rear suspension shock absorber mounting bracket, a 16, a tubular cross beam, a 17, a reinforcing bracket, a 17-1 cross beam mounting hole, a 18 and a lock bolt mounting bracket.

Detailed Description

As shown in figures 1-8, the rear suspension system of the commercial vehicle cab with the cross beam comprises the cross beam 4, a rear suspension lower bracket 8 and a hydraulic lock 5, wherein the cross beam 4 is of an inverted U-shaped structure, and two ends of the cross beam 4 are respectively connected with the rear suspension lower bracket 8 and the hydraulic lock 5.

The beam 4 comprises a tubular beam 16 and reinforcing brackets 17 arranged at two ends of the tubular beam 16, and a plurality of beam mounting holes 17-1 are arranged at two sides of the reinforcing brackets 17. Preferably, the stamping reinforcing brackets 17 of the cross beam 4 are welded to the tubular cross beam 16, which act in series with the left/right rear suspension sub-brackets 8, the left/right hydraulic locks 5, on the one hand for securing the oil pipe connection from the left to the right hydraulic locks 5, and on the other hand for improving the torsion resistance of the suspension system.

The rear suspension lower bracket 8 comprises a tubular upright post 14, a frame and rear suspension shock absorber mounting bracket 15 arranged at the bottom of the tubular upright post 14, a hydraulic lock bracket 12 arranged at the top of the tubular upright post 14, and a bolt sleeve 13 arranged below the hydraulic lock bracket 12, wherein the bottom of the frame and rear suspension shock absorber mounting bracket 15 is used for being mounted with the frame 9, preferably, the frame and rear suspension shock absorber mounting bracket 15, the hydraulic lock bracket 12 and the bolt sleeve 13 are mutually welded, the stressed part is formed by adopting cast steel parts, the rest parts are formed by adopting sectional materials, so that the strength requirement is met, the integral fatigue resistance of the suspension system is also improved, and the light weight is realized.

The hydraulic lock is characterized by further comprising a rear suspension lock hook 1, a hydraulic lock 5 and a rear suspension shock absorber 7, wherein the hydraulic lock 5 is respectively provided with a hydraulic lock upper mounting hole 5-1, a hydraulic lock locking hook 5-2 and a hydraulic lock lower mounting hole 5-3, the rear suspension shock absorber 7 is arranged between the hydraulic lock lower mounting hole 5-3 and a frame and rear suspension shock absorber mounting bracket 15 through corresponding pin shafts, the rear suspension lock hook 1 is arranged on the hydraulic lock locking hook 5-2 through a lock pin 3, the hydraulic lock bracket 12 is arranged on the hydraulic lock upper mounting hole 5-1 through corresponding pin shafts, the upper end of the rear suspension lock hook 1 is used for fixedly connecting a cab, and preferably, the rear suspension shock absorber 7 is a spiral spring shock absorber provided with springs, and is used for inhibiting vibration and absorbing energy of road surface impact when the springs rebound after vibration absorption and playing a role of buffering impact.

The rear suspension damper 7 is tangent to the rotation circle of the hydraulic lock 5, and the hydraulic lock 5 is in a horizontal state under the full load condition, so that better comfort is obtained.

The rear suspension latch hook 1 comprises a longitudinal beam connecting bracket 11, a latch bolt mounting bracket 18 arranged at the bottom of the longitudinal beam connecting bracket 11, a sleeve 2 and a latch bolt 3 are arranged at the joint of the latch bolt mounting bracket 18 and the hydraulic lock 5, the sleeve 2 is provided with taper, the middle layer of the latch bolt 3 is provided with a rubber shock-absorbing layer, preferably, the rear suspension latch hook 1 adopts a steel plate integrated stamping part, the sleeve 2 adopts a nylon material, and the taper design of the sleeve 2 can play a role in preventing the hydraulic lock 5 from moving and plays a very good limiting role. The rubber shock-absorbing layer is arranged in the middle layer of the lock pin 3, a certain shock-absorbing effect is achieved, and abnormal sound generated by the hydraulic lock and the lock plunger is effectively solved.

The expansion tank bracket 10 is connected with the beam mounting hole 17-1 of the right reinforcing bracket 17. Preferably, the expansion tank bracket 10 adopts a steel plate integrated stamping part, is connected with the beam mounting hole 17-1 of the right reinforcing bracket 17, the hydraulic lock bracket 12 and the bolt sleeve 13 together, and is more beneficial to compact arrangement of chassis parts due to integrated design.

The hydraulic lock further comprises a T-shaped oil pipe support 6;T, wherein the T-shaped oil pipe support 6 is connected with a left bolt sleeve 13, and preferably, the two ends of the T-shaped oil pipe support 6 are provided with 120-degree flanges, so that the problem that a hydraulic oil pipe connected with the hydraulic lock 5 interferes with a rear suspension body of a cab is solved, and the trend of a pipeline is smooth.

Claims

1. A commercial vehicle cab rear suspension system with a crossbeam, characterized in that it comprises a crossbeam (4), a rear suspension lower bracket (8) and a hydraulic lock (5); the crossbeam (4) is an inverted U-shaped structure; the two ends of the crossbeam (4) are respectively connected to the rear suspension lower bracket (8) and the hydraulic lock (5);

The crossbeam (4) comprises a tubular crossbeam (16) and reinforcing brackets (17) arranged at both ends of the tubular crossbeam (16); a plurality of crossbeam mounting holes (17-1) are arranged on both sides of the reinforcing bracket (17).

2. The rear suspension system of a commercial vehicle cab with a crossbeam as described in claim 1 is characterized in that the rear suspension lower bracket (8) includes a tubular column (14), a frame and a rear suspension shock absorber mounting bracket (15) is arranged at the bottom of the tubular column (14), a hydraulic lock bracket (12) is arranged at the top of the tubular column (14), and a bolt sleeve (13) is arranged on the tubular column (14) and below the hydraulic lock bracket (12).

3. The rear suspension system of a commercial vehicle cab with a crossbeam as described in claim 2 is characterized in that it also includes a rear suspension lock hook (1), a hydraulic lock (5), and a rear suspension shock absorber (7); the hydraulic lock (5) is respectively provided with a hydraulic lock upper mounting hole (5-1), a hydraulic lock locking hook (5-2), and a hydraulic lock lower mounting hole (5-3); the rear suspension shock absorber (7) is arranged between the hydraulic lock lower mounting hole (5-3) and the frame and the rear suspension shock absorber mounting bracket (15); the rear suspension lock hook (1) is arranged on the hydraulic lock locking hook (5-2), and the hydraulic lock bracket (12) is arranged on the hydraulic lock upper mounting hole (5-1).

4. The rear suspension system of a commercial vehicle cab with a crossbeam as described in claim 3 is characterized in that the rear suspension lock hook (1) includes a longitudinal beam connecting bracket (11), a lock bolt mounting bracket (18) arranged at the bottom of the longitudinal beam connecting bracket (11), and a sleeve (2) and a lock pin (3) are arranged at the connection between the lock bolt mounting bracket (18) and the hydraulic lock (5); the sleeve (2) is provided with a taper, and the middle layer of the lock pin (3) is provided with a rubber shock-absorbing layer.

5. The commercial vehicle cab rear suspension system with a crossbeam as described in claim 1 is characterized in that it also includes an expansion tank bracket (10); the expansion tank bracket (10) is connected to the crossbeam mounting hole (17-1) of the right reinforcing bracket (17).

6. The rear suspension system of a commercial vehicle cab with a crossbeam as claimed in claim 2, characterized in that it also includes a T-shaped oil pipe bracket (6); the T-shaped oil pipe bracket (6) is connected to the bolt sleeve (13) on the left side.

7. The commercial vehicle cab rear suspension system with a crossbeam as claimed in claim 3, characterized in that the rear suspension shock absorber (7) is tangent to the rotation circle of the hydraulic lock (5).