CN210526681U - Four-point suspension type front suspension system for cab of commercial vehicle - Google Patents
Four-point suspension type front suspension system for cab of commercial vehicle Download PDFInfo
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- CN210526681U CN210526681U CN201921109738.6U CN201921109738U CN210526681U CN 210526681 U CN210526681 U CN 210526681U CN 201921109738 U CN201921109738 U CN 201921109738U CN 210526681 U CN210526681 U CN 210526681U
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- front suspension
- overturning
- shock absorber
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Abstract
The utility model provides a four-point suspension type front suspension system of a commercial vehicle cab, which comprises a left front suspension assembly, a right front suspension assembly and a transverse stabilizer bar assembly; the structural symmetry of suspension assembly and right front suspension assembly, left and right front suspension assembly include respectively that the suspension goes up the support, upset support, spring damper, and its improvement core lies in before a left side: be equipped with spacing upset piece on the front suspension upper bracket, upset support top sets up to the spacing face of circular arc, and spacing upset piece corresponds the setting with the spacing face of circular arc, and in driver's cabin upset process, front suspension upper bracket is around the upset support roll upset, is reaching the spacing upset piece of take the altitude and is interfering with the spacing face of circular arc, and it is spacing to realize the driver's cabin upset through simple structure setting, easy to carry out, and the cost is reduced realizes lightweight structure setting, has reduced the automobile operation energy consumption.
Description
Technical Field
The invention belongs to a front suspension system of a cab of a commercial vehicle, and particularly relates to a four-point suspension type front suspension system of the cab of the commercial vehicle.
Background
In the commercial vehicle industry, most of the traditional cab front suspension adopts a rubber bushing and a casting to be pressed together to serve as a connecting piece of a cab and a frame, and due to the design and manufacturing limitations, the arrangement form and parameter matching of a suspension system of the commercial vehicle directly influence the vibration degree of the cab in the driving process; in the overturning process of the cab, due to the fact that the gravity center of the cab moves forwards, the shock absorber is compressed in a transitional mode, and the front air guide sleeve of the cab is interfered with the bumper to cause the risk of damage to the bumper or the air guide sleeve; when the cab is turned over until the gravity center of the cab crosses over the turning point, the turning angle of the cab is limited completely by the turning hydraulic oil cylinder, and unsafe factors exist. In order to improve the driving comfort of a vehicle, relieve the driving fatigue of a driver, buffer the impact transmitted by the road surface, protect a cab main body and prevent the cab from being overturned excessively, a floating elastic vibration damping connection supporting device and an excessive overturn prevention limiting mechanism are required to be arranged between the cab and a frame, and the existing excessive overturn prevention limiting mechanism is complex in structure and not beneficial to the light weight and the cost control of the whole vehicle.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a four-point suspension type front suspension system for a commercial vehicle cab, which is arranged by a simple structure and realizes the overturning limit of the cab.
Therefore, the technical scheme of the utility model is that: a four-point suspension type front suspension system of a commercial vehicle cab comprises a left front suspension assembly, a right front suspension assembly and a transverse stabilizer bar assembly; the transverse stabilizer bar assembly comprises a transverse stabilizer bar, a left overturning arm and a right overturning arm, and the left overturning arm and the right overturning arm are welded with the transverse stabilizer bar into a whole; the left front suspension assembly and the right front suspension assembly are symmetrical in structure, the left front suspension assembly and the right front suspension assembly respectively comprise a front suspension upper support, a turnover support and a spring shock absorber, the front end of the front suspension upper support is provided with a shock absorber mounting hole, and the middle part of the front suspension upper support is provided with a swing arm mounting hole;
the method is characterized in that:
the turnover supports comprise a frame mounting end on the inner side of the lower part, a shock absorber mounting end on the outer side of the lower part and a transverse stabilizer bar mounting hole on the upper part, wherein the transverse stabilizer bar mounting hole on the upper part is sleeved with a wear-resistant bushing, and two ends of the transverse stabilizer bar are supported on the two turnover supports through the wear-resistant bushings;
the rear ends of the left and right turnover arms are respectively hinged with the front suspension turnover bracket through a first pin shaft and a shock absorber mounting hole; the upper end of the spring hydraulic shock absorber is hinged with a shock absorber mounting hole of the front suspension upper bracket through a second pin shaft, a rubber bushing is mounted between the second pin shaft and the shock absorber mounting hole, and the lower end of the spring composite shock absorber is connected to a shock absorber mounting end, sleeved on the outer side of the lower part of the overturning support, of the second rubber bushing;
the front end of the front suspension upper bracket is provided with a limiting overturning block installation shaft on the shock absorber installation hole, the limiting overturning block installation shaft is fixedly provided with a limiting overturning block, the top of the overturning support is provided with a circular arc limiting surface, the limiting overturning block corresponds to the circular arc limiting surface, and when the cab is overturned, the front suspension upper bracket is overturned around the overturning support in a rolling manner, and the front suspension upper bracket is interfered with the circular arc limiting surface when reaching a certain height, so that the cab is overturned in a limiting manner.
The technical scheme is further limited as follows: the limiting overturning block is a circular ring sleeve, and the circular ring sleeve is sleeved at the mounting shaft end of the limiting overturning block and is limited by a clamp spring through a shaft; the structure is simple and easy to implement.
The utility model has the advantages that: the structure of the overturning support and the front suspension upper support is improved, the overturning limiting of the cab is realized through the simple structure arrangement of the limiting overturning block and the arc limiting surface, the complex overturning limiting mechanism in the prior art is replaced through the simple structure, the implementation is easy, the cost is reduced, the lightweight structure arrangement is realized, and the energy consumption of the automobile operation is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of portion C of fig. 1.
Fig. 3 is a schematic structural view of the middle turning support of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings as follows: as shown in fig. 1-3, a cab four-point suspension type front suspension system for a commercial vehicle comprises a left front suspension assembly a, a right front suspension assembly B and a stabilizer bar assembly; the transverse stabilizer bar assembly comprises a transverse stabilizer bar 4, a left overturning arm 3 and a right overturning arm 6, and the left overturning arm 3 and the right overturning arm 6 are welded with the transverse stabilizer bar 4 into a whole; the left front suspension assembly A and the right front suspension assembly B are symmetrical in structure, the left front suspension assembly and the right front suspension assembly respectively comprise a front suspension upper support 2, a turnover support 1 and a spring shock absorber 5, the front end of the front suspension upper support is provided with a shock absorber mounting hole, and the middle part of the front suspension upper support is provided with a swing arm mounting hole 2-1;
the overturning support 1 comprises a frame mounting end 1-3 at the inner side of the lower part, a shock absorber mounting end 1-4 at the outer side of the lower part and a transverse stabilizer bar mounting hole 1-2 at the upper part, the top of the overturning support is provided with an arc limiting surface 1-1, the transverse stabilizer bar mounting hole at the upper part is sleeved with a wear-resistant bushing, and two ends of the transverse stabilizer bar 4 are supported on the two overturning supports through the wear-resistant bushing;
the rear ends of the left and right turnover arms are respectively hinged with the front suspension turnover bracket through a first pin shaft and a shock absorber mounting hole 2-1; the upper end of the spring hydraulic shock absorber 5 is hinged with a shock absorber mounting hole of the front suspension upper bracket 2 through a second pin shaft 6, a rubber bushing is arranged between the second pin shaft 6 and the shock absorber mounting hole, and the lower end of the spring composite shock absorber 5 is sleeved on shock absorber mounting ends 1-4 on the outer side of the lower part of the overturning support;
the front end of the front suspension upper bracket is provided with a limiting overturning block mounting shaft 2-2 on the shock absorber mounting hole, the limiting overturning block mounting shaft is fixedly provided with a limiting overturning block 7, the limiting overturning block 7 is arranged corresponding to the arc limiting surface 1-1, when the cab is overturned, the front suspension upper bracket rolls and overturns around the overturning support, and the limiting overturning block and the arc limiting surface interfere at a certain height, so that the cab is overturned to be limited.
As shown in fig. 2, the limiting overturning block 7 is a ring sleeve which is sleeved at the mounting shaft end of the limiting overturning block and is limited by a clamp spring 8 through the shaft; the structure is simple and easy to implement.
For those skilled in the art, simple combination, equivalent replacement, and further improvement without departing from the technical concept of the present invention shall be included in the protection scope of the present invention.
Claims (2)
1. A four-point suspension type front suspension system of a commercial vehicle cab comprises a left front suspension assembly, a right front suspension assembly and a transverse stabilizer bar assembly; the transverse stabilizer bar assembly comprises a transverse stabilizer bar, a left overturning arm and a right overturning arm, and the left overturning arm and the right overturning arm are welded with the transverse stabilizer bar into a whole; the left front suspension assembly and the right front suspension assembly are symmetrical in structure, the left front suspension assembly and the right front suspension assembly respectively comprise a front suspension upper support, a turnover support and a spring shock absorber, the front end of the front suspension upper support is provided with a shock absorber mounting hole, and the middle part of the front suspension upper support is provided with a swing arm mounting hole;
the method is characterized in that:
the turnover supports comprise a frame mounting end on the inner side of the lower part, a shock absorber mounting end on the outer side of the lower part and a transverse stabilizer bar mounting hole on the upper part, wherein the transverse stabilizer bar mounting hole on the upper part is sleeved with a wear-resistant bushing, and two ends of the transverse stabilizer bar are supported on the two turnover supports through the wear-resistant bushings;
the rear ends of the left and right turnover arms are respectively hinged with the front suspension turnover bracket through a first pin shaft and a shock absorber mounting hole; the upper end of the spring hydraulic shock absorber is hinged with a shock absorber mounting hole of the front suspension upper bracket through a second pin shaft, a rubber bushing is mounted between the second pin shaft and the shock absorber mounting hole, and the lower end of the spring composite shock absorber is connected to a shock absorber mounting end, sleeved on the outer side of the lower part of the overturning support, of the second rubber bushing;
the front end of the front suspension upper bracket is provided with a limiting overturning block installation shaft on the shock absorber installation hole, the limiting overturning block installation shaft is fixedly provided with a limiting overturning block, the top of the overturning support is provided with a circular arc limiting surface, the limiting overturning block corresponds to the circular arc limiting surface, and when the cab is overturned, the front suspension upper bracket is overturned around the overturning support in a rolling manner, and the front suspension upper bracket is interfered with the circular arc limiting surface when reaching a certain height, so that the cab is overturned in a limiting manner.
2. The commercial vehicle cab four-point suspension type front suspension system as claimed in claim 1, wherein: the limiting overturning block is a circular ring sleeve, and the circular ring sleeve is sleeved at the mounting shaft end of the limiting overturning block and is limited by a clamp spring for the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109738.6U CN210526681U (en) | 2019-07-16 | 2019-07-16 | Four-point suspension type front suspension system for cab of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921109738.6U CN210526681U (en) | 2019-07-16 | 2019-07-16 | Four-point suspension type front suspension system for cab of commercial vehicle |
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| Publication Number | Publication Date |
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| CN210526681U true CN210526681U (en) | 2020-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921109738.6U Active CN210526681U (en) | 2019-07-16 | 2019-07-16 | Four-point suspension type front suspension system for cab of commercial vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889709A (en) * | 2022-06-20 | 2022-08-12 | 安徽江淮汽车集团股份有限公司 | Auxiliary safety structure for cab turning |
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2019
- 2019-07-16 CN CN201921109738.6U patent/CN210526681U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114889709A (en) * | 2022-06-20 | 2022-08-12 | 安徽江淮汽车集团股份有限公司 | Auxiliary safety structure for cab turning |
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