CN202966272U - Drive axle assembly of high-end engineering vehicle - Google Patents
Drive axle assembly of high-end engineering vehicle Download PDFInfo
- Publication number
- CN202966272U CN202966272U CN 201220419670 CN201220419670U CN202966272U CN 202966272 U CN202966272 U CN 202966272U CN 201220419670 CN201220419670 CN 201220419670 CN 201220419670 U CN201220419670 U CN 201220419670U CN 202966272 U CN202966272 U CN 202966272U
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- Prior art keywords
- shaft
- drive axle
- axle assembly
- tight
- brake
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- Expired - Fee Related
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Abstract
The utility model relates to a drive axle assembly of a high-end engineering vehicle. The drive axle assembly includes a drive axle shell, a final drive, a differential, a left haft shaft, a right haft shaft and hubs connected with the left and right half shafts, and is characterized in that a braking device consisting of a brake drum (1) and a brake (2) are connected on a spindle (3a) of a main gear (3) of the final drive; shaft end flanges (9) are respectively arranged at the shaft ends of the left half shaft and the right half shaft; bolt pre-tight holes (8) are respectively formed on the shaft end flanges (9); and bearing pre-tight nuts (6) and locking-up washers (7) matched with the bearing pre-tight nuts are respectively formed at the end parts of the left half shaft and the right half shaft. According to the utility model, as the unilateral independent brake, a single-hole hub bolt pre-tight structure and an axial fixing device for the semi-floating half shafts are adopted, and the provided drive axle assembly has the advantages of simple structure, stable and reliable performance, convenience in assembly and installation, low cost and the like.
Description
Technical field
The utility model relates to a kind of engineering truck, the drive axle assembly of a kind of high-grade engineering truck of special design.
Background technology
Drive axle is in the end of Power Train, its basic function is to increase the torque of being transmitted by transmission shaft or change-speed box, and power is reasonably distributed to the left and right driving wheel, also bear in addition the vertical power, longitudinal force and the transverse force that act between road surface, vehicle frame or vehicle body.Drive axle generally is comprised of main reduction gear, diff, wheel drive and driving axle housing etc.Be installed on respectively the hub positions at driving axle housing two ends due to drg, make drive axle assembly overall structure comparatively complicated, wheel hub is installed cumbersome, and the semiaxis axial fixing structure is also very complicated.
The utility model content
The purpose of this utility model is exactly comparatively complicated in order to solve the structure that has the existence of engineering truck drive axle now, the shortcoming of difficulty is installed, a kind of high-grade engineering truck drive axle assembly that provides.
To achieve these goals, the utility model has adopted following technical scheme:
A kind of high-grade engineering truck drive axle assembly comprises driving axle housing, main reduction gear, diff, left and right semiaxis and connected wheel hub thereof, it is characterized in that: connect a brake equipment on the main shaft of the main gear of main reduction gear.
On the basis of technique scheme, following further technical scheme is arranged:
The axle head of left and right semiaxis is respectively equipped with boss, and boss is provided with a tools for bolts ' pretension hole;
Be respectively equipped with the bearing pre-tightened nut on the end of left and right semiaxis and the locking packing ring coordinates with bearing pre-tightened.
In the technical solution of the utility model,
Described brake equipment is the one-sided free-standing drg that is arranged on the main gear main shaft, and namely whole drive axle only has a drg to be arranged on the left side of driving gear, matches with the spline of driving gear shaft, reaches braking effect by braking main tooth during braking.Advantage: brake efficiency is good, mechanism is simple, easy to maintenance, with low cost, and this brake structural is domestic initiation.
The axle head of left and right semiaxis is provided with monotrysian type boss bolt pre-pressing structure, and the tools for bolts ' pretension hole of is namely arranged on the semiaxis boss of left and right, makes hole, tools for bolts ' pretension hole and hub stud holes overlap each boss bolt of pretension by rotating semiaxis during the assembling wheel hub.Advantage: guarantee technique and assembly feasibility because structure is compact when satisfying intensity.
The axle head of left and right semiaxis is provided with the axial securing means for impeller of semifloating axle shaft, and it is comprised of bearing pre-tightened nut 6 and locking packing ring 7, and with the pre-flush fit of the axle end bearing of left and right semiaxis.
The utility model has the advantage of: due to the axial securing means for impeller that adopts one-sided free-standing drg, monotrysian type boss bolt pre-pressing structure and semifloating axle shaft semiaxis, the drive axle assembly that provides has simple in structure, stable and reliable for performance, erection is convenient, low cost and other advantages.
Description of drawings:
Fig. 1 is front view of the present utility model;
Fig. 2 is the right elevation of Fig. 1.
The specific embodiment:
As shown in Figure 1 and Figure 2, a kind of high-grade engineering truck drive axle assembly that the utility model provides, comprise driving axle housing, driving axle housing top is provided with main reduction gear, the driving axle housing lower middle position is provided with diff 10, diff 10 two ends connect respectively left and right semiaxis 4, are connected with respectively wheel hub 11 on the axle housing of left and right semiaxis 4 axle heads.
Of the present utility model being characterised in that: connect a brake equipment that is formed by brake wheel 1 and drg 2 on the main shaft of the main gear 3 in main reduction gear, wherein brake wheel 1 matches with the spline of driving gear shaft 3a, reaches braking effect by braking main tooth during braking.Described brake wheel 1 and drg 2 are the known products in this area.
Axle head at the left and right semiaxis is respectively equipped with boss 9 in addition, and boss 9 is provided with a tools for bolts ' pretension hole 8, makes hole, tools for bolts ' pretension hole and hub stud holes overlap each boss bolt of pretension by rotating semiaxis during the assembling wheel hub;
Be respectively equipped with bearing pre-tightened nut 6 and locking packing ring 7 and the pre-flush fit of bearing 12 in the end of left and right semiaxis, come the end bearing 12 of pretension left and right semiaxis by adjusting bearing pre-tightened nut lock 6 and locking packing ring 7, more traditional semifloating axle shaft has reduced a lot of complex partses, and integral structure is simple, reliable, easy to process, with low cost.
Claims (2)
1. high-grade engineering truck drive axle assembly, comprise driving axle housing, main reduction gear, diff, left and right semiaxis and connected wheel hub thereof, brake equipment that is formed by brake wheel (1) and drg (2) of the upper connection of the main shaft (3a) of the main gear of main reduction gear (3), it is characterized in that: the axle head of left and right semiaxis is respectively equipped with boss (9), and boss (9) is provided with a tools for bolts ' pretension hole (8).
2. a kind of high-grade engineering truck drive axle assembly according to claim 1, it is characterized in that: the end of left and right semiaxis is respectively equipped with bearing pre-tightened nut (6) and locking packing ring (7) coordinates with bearing pre-tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220419670 CN202966272U (en) | 2012-08-23 | 2012-08-23 | Drive axle assembly of high-end engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220419670 CN202966272U (en) | 2012-08-23 | 2012-08-23 | Drive axle assembly of high-end engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202966272U true CN202966272U (en) | 2013-06-05 |
Family
ID=48507387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220419670 Expired - Fee Related CN202966272U (en) | 2012-08-23 | 2012-08-23 | Drive axle assembly of high-end engineering vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202966272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074946A (en) * | 2014-07-21 | 2014-10-01 | 合肥美桥汽车传动及底盘系统有限公司 | Linear shaft high power density differential assembly |
-
2012
- 2012-08-23 CN CN 201220419670 patent/CN202966272U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074946A (en) * | 2014-07-21 | 2014-10-01 | 合肥美桥汽车传动及底盘系统有限公司 | Linear shaft high power density differential assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20200823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |