CN201257875Y - Forward shaft assembly - Google Patents
Forward shaft assembly Download PDFInfo
- Publication number
- CN201257875Y CN201257875Y CNU2008200407963U CN200820040796U CN201257875Y CN 201257875 Y CN201257875 Y CN 201257875Y CN U2008200407963 U CNU2008200407963 U CN U2008200407963U CN 200820040796 U CN200820040796 U CN 200820040796U CN 201257875 Y CN201257875 Y CN 201257875Y
- Authority
- CN
- China
- Prior art keywords
- main pin
- girder
- steering knuckle
- stub
- right sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a front shaft assembly which solves the problem that a steel back compound bushing causes the installation and fitting clearance between a steering knuckle and a main pin to be greater due to abrasion so as to affect the safety of the travelling crane, and which has the advantages of basically invariable installation and fitting clearance between the inner hole of the steering knuckle and the main pin, small steering resistive force, safety, reliability and simple structure. The front shaft assembly comprises an I-beam, a left steering knuckle, a right steering knuckle, a left main pin and a right main pin, wherein, the left main pin and the right main pin are fixed in the mounting holes of the main pin at two ends of the I-beam; and the left main pin and the right main pin are in rotational connection with the inner holes of the left steering knuckle and the right steering knuckle.
Description
Technical field
The utility model relates to and turns to front axle assembly, specifically, is that motor omnibus turns to front axle assembly.
Background technology
The suspension frame structure major part of present motor omnibus, particularly high-grade passenger vehicle is the standard configuration air spring suspension, and the front axle assembly that uses is to change to design on the basis of truck front axle basically, for being installed, air spring suspension promptly carries out machinework in the H-girder middle part, but process in the H-girder intermediate shank portion, can obviously reduce the intensity of H-girder, cause potential safety hazard.In addition, the endoporus inside with the stub normal-running fit that is fixed on the H-girder two ends on the steering swivel of the left and right sides is provided with the steel backing composite bush, and in the car load use, this steel backing composite bush can wear and tear and make the installation tolerance clearance between steering swivel and stub become big.When this gap greater than when value, must change the steel backing composite bush, otherwise can cause problems such as in the process of moving yaw of car load, sideslip, tire eccentric wear, influence traffic safety.Use the steel backing composite bush in addition, be difficult to guarantee consistent type, the especially new car in endoporus and stub gap on the steering swivel, problem is many during use.Use the steel backing composite bush, cornering resistance is also bigger.
Summary of the invention
What the utility model solved is that the steel backing composite bush becomes big because of wearing and tearing make the installation tolerance clearance between steering swivel and stub, influence the problem of traffic safety, the front axle assembly that the installation tolerance clearance is constant substantially, cornering resistance is little, safe and reliable, simple in structure between a kind of steering swivel endoporus and stub is provided.
This front axle assembly comprises H-girder, and left and right sides steering swivel, left and right sides stub, left and right sides stub are fixed in the stub mounting hole at two ends of H-girder; Left and right sides stub is rotationally connected with left and right sides steering swivel endoporus respectively by needle bearing.
Use the advantage of needle bearing: 1) not easy to wear, the needle bearing superficial hardness is higher, if there is not what extraordinary circumstances, can guarantee need not change in the car load cycle in service life; Stop the problem of the ubiquitous hard steering of common front axle assembly, yaw, sideslip; 2) can guarantee the conformability in steering swivel endoporus and stub gap; 3) cornering resistance is little.
As improvement, in the above-mentioned front axle assembly, the upper surface that H-girder is used to install the car load leaf spring is the plane, to satisfy different installation dimension requirements.
As improvement, in the above-mentioned front axle assembly, the lower thrust rod bearing hole that air spring suspension is installed is arranged at the middle part of H-girder and the bottom at two ends, the problem that causes H-girder intensity to reduce to avoid common H-girder middle part processing lower thrust rod bearing hole.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the local enlarged diagram of the needle bearing mounting structure on steering swivel top among Fig. 1
Fig. 3 is the local enlarged diagram of the needle bearing mounting structure of steering swivel bottom among Fig. 1
Fig. 4 is the A-A section-drawing among Fig. 1
Fig. 5 is the B-B section-drawing among Fig. 1
Fig. 6 is the birds-eye view of Fig. 1
The specific embodiment
Referring to Fig. 1-6, front axle assembly mainly contains H-girder 2, left and right sides steering swivel, drag link arm 1, track rod lever 7, tierod assembly 6, wheel hub brake drum assembly 4, brake assembly 5, left and right sides stub composition.Wherein, right stub 8 is fixed on by the stub lock pin in the stub mounting hole of right-hand member of H-girder; Two endoporus up and down on the right steering joint 3 are rotationally connected by needle bearing 9,10 and right stub.Brake assembly is fixed on the steering swivel; The wheel hub brake drum assembly passes through the inside and outside bearing fixing of wheel hub on steering swivel.Drag link arm one end is fixed on the steering swivel, and the other end has a taper hole, links together with ball pin on the steering track rod on the steering box.Track rod lever one end is fixed on the steering swivel, and the ball pin of the taper hole of the other end and tierod assembly is fixed together, and left and right steering swivel is linked together.During use, the pull bar on the car load direction of passage machine is connected with the drag link arm on turning to front axle assembly, makes left and right wheels by the direction running of estimating by the tierod assembly.
The upper surface 11 that H-girder is used to install the car load leaf spring is the plane.The lower thrust rod bearing hole 12,13 that air spring suspension is installed is arranged at the middle part of H-girder and the bottom at two ends.
Claims (3)
1. front axle assembly comprises H-girder, and left and right sides steering swivel, left and right sides stub, left and right sides stub are fixed in the stub mounting hole at two ends of H-girder; It is characterized in that: left and right sides stub is rotationally connected with left and right sides steering swivel endoporus respectively by needle bearing.
2. front axle assembly according to claim 1 is characterized in that: the upper surface that H-girder is used to install the car load leaf spring is the plane.
3. front axle assembly according to claim 1 is characterized in that: the lower thrust rod bearing hole that air spring suspension is installed is arranged at the middle part of H-girder and the bottom at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200407963U CN201257875Y (en) | 2008-07-23 | 2008-07-23 | Forward shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200407963U CN201257875Y (en) | 2008-07-23 | 2008-07-23 | Forward shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201257875Y true CN201257875Y (en) | 2009-06-17 |
Family
ID=40772106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200407963U Expired - Lifetime CN201257875Y (en) | 2008-07-23 | 2008-07-23 | Forward shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201257875Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235448A (en) * | 2015-11-02 | 2016-01-13 | 中国重汽集团济南动力有限公司 | A front shaft assembly matching an air spring suspension and being used for a commercial vehicle |
| CN109505899A (en) * | 2019-01-08 | 2019-03-22 | 南京创捷和信汽车零部件有限公司 | Front axle assembly equipped with normally closed type wet brake |
-
2008
- 2008-07-23 CN CNU2008200407963U patent/CN201257875Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105235448A (en) * | 2015-11-02 | 2016-01-13 | 中国重汽集团济南动力有限公司 | A front shaft assembly matching an air spring suspension and being used for a commercial vehicle |
| CN109505899A (en) * | 2019-01-08 | 2019-03-22 | 南京创捷和信汽车零部件有限公司 | Front axle assembly equipped with normally closed type wet brake |
| CN109505899B (en) * | 2019-01-08 | 2023-10-13 | 南京创捷和信汽车零部件有限公司 | Front axle assembly with normally closed wet brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090617 |