CN202690981U - Floating mechanism for main shaft of twin countershaft transmission - Google Patents
Floating mechanism for main shaft of twin countershaft transmission Download PDFInfo
- Publication number
- CN202690981U CN202690981U CN 201220389578 CN201220389578U CN202690981U CN 202690981 U CN202690981 U CN 202690981U CN 201220389578 CN201220389578 CN 201220389578 CN 201220389578 U CN201220389578 U CN 201220389578U CN 202690981 U CN202690981 U CN 202690981U
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- CN
- China
- Prior art keywords
- main shaft
- outer ring
- bearing
- bearing outer
- shaft
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- 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.)
- Withdrawn - After Issue
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Abstract
Provided is a floating mechanism for a main shaft of a twin countershaft transmission. The floating mechanism comprises a main shaft connected with an input shaft. A tail end of the main shaft is fixedly arranged on a bearing of an output shaft through an integral joint bearing unit. The integral joint bearing unit comprises a bearing outer ring, a self-locking spring and a ball rod. The bearing outer ring is arranged in an inner hole of the main shaft. The bearing outer ring includes two half balls that face to each other along an axis. The two half balls are connected to be one body through the self-locking spring. A ball chamber of the bearing outer ring is provided with a ball portion of the ball rod. The bearing outer ring is positioned in an axially manner through a joint bearing press ring. The joint bearing press ring is fixedly welded with an end portion of the main shaft along a circumference. A rod portion of the ball rod is connected with the output shaft in an axial positioning manner via a locking nut. The beneficial effects of the floating mechanism are that the bearing outer ring and the ball rod are mounted to be an integral unit structure, so that the floating mechanism has a simple structure, is free from adjustment and is convenient for assembling; and the floating mechanism helps to realize flexible floating and also enables the main shaft to be accurately positioned in an axial manner.
Description
Technical field
The utility model is a kind of twin countershaft transmission main shaft relocation mechanism.
Background technique
Existing twin countershaft transmission, two countershaft assemblies are uneven to be carried in order overcoming, main shaft must have unsteady, present rear-end of spindle or be rigidly connected, rear-end of spindle relocation mechanism structure is scattered, with the immediate prior art of the technical program be: publication number is 201103674, patent name is: the utility model patent of floating structure for speed transmission, its rear end relocation mechanism structure is scattered, assembling difficulty is difficult to greatly the assurance assembly precision, and therefore, assembly process process is poor, and there are the easy clamping stagnation of hinged bulb, a problem that causes main shaft to rupture because of clamping stagnation.
Summary of the invention
The utility model is for the deficiencies in the prior art, provide a kind of simple in structure, be convenient to assembling, the twin countershaft transmission main shaft that floats flexibly is with the technological scheme of relocation mechanism.
The utility model is realized by following technical measures: a kind of twin countershaft transmission main shaft relocation mechanism, comprise the main shaft that is connected with input shaft, the end of described main shaft is fixedly mounted on the bearing on the output shaft by integrated type joint shaft bearing unit, the crucial bearing unit of described integrated type comprises bearing outer ring, self-locking spring, ball rod, described bearing outer ring is positioned at described inner hole of spindle, described bearing outer ring comprises two hemisphere splitting along axis, described two hemisphere are connected to one by self-locking spring, the bulb part of ball rod is installed in the described bearing outer ring ball chamber, described bearing outer ring is by joint shaft bearing pressure ring axially locating, described joint shaft bearing pressure ring is welded and fixed along circumference and described spindle nose, and the shank portion of described ball rod is connected with described output shaft axially locating by locking nut.
Further improvement of the utility model also has, and is provided with filleted between the bulb part of above-mentioned ball rod and the shank portion, and described bulb part and filleted are processed with the induction hardening layer by induction hardening process.
The thickness of above-mentioned induction hardening layer is: 3-5mm.
Further improvement of the utility model also has, and the axial movement value of above-mentioned ball rod is 0.05-0.09mm.
Further improvement of the utility model also has, and the bearing pivot angle α of above-mentioned integrated type joint shaft bearing unit is 6 degree.
Further improvement of the utility model also has, and is provided with flying height between the lining of above-mentioned front-end of spindle and input shaft.
The beneficial effects of the utility model are: bearing outer ring and ball rod are assembled into integral cell structure, and be simple in structure, exempts from adjustment, is convenient to assembling characteristics, can realize floating flexibly, can realize again the accurate location that main shaft is axial.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the A section structure for amplifying schematic diagram among Fig. 1.
Fig. 3 is the structural representation of integrated type joint shaft bearing unit in the utility model embodiment.
Fig. 4 is the STRUCTURE DECOMPOSITION schematic diagram of integrated type joint shaft bearing unit in the utility model embodiment.
Fig. 5 is the cut-away illustration of ball rod in the utility model embodiment.
Among the figure, 1, input shaft, 2, main shaft, 3, lining, 4, integrated type joint shaft bearing unit, 5, output shaft, 6, bearing, 7, bearing outer ring, 8, self-locking spring, 9, bulb part, 10, shank portion, 11, the joint shaft bearing pressure ring, 12, locking nut, 13, filleted, 14, the induction hardening layer.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, this programme is set forth.
Such as accompanying drawing, a kind of twin countershaft transmission main shaft relocation mechanism, comprise the main shaft 2 that is connected with input shaft 1, be provided with flying height between the lining 3 of described main shaft 2 front ends and input shaft 1, the end of described main shaft 2 is fixedly mounted on the bearing 6 on the output shaft 5 by integrated type joint shaft bearing unit 4, the crucial bearing unit 4 of described integrated type comprises bearing outer ring 7, self-locking spring 8, ball rod, described bearing outer ring 7 is positioned at described inner hole of spindle, described bearing outer ring 7 comprises two hemisphere splitting along axis, described two hemisphere are connected to one by self-locking spring 8, the bulb part 9 of ball rod is installed in the described bearing outer ring 7 ball chambeies, described bearing outer ring 7 is by joint shaft bearing pressure ring 11 axially locating, described joint shaft bearing pressure ring 11 is welded and fixed along circumference and described main shaft 2 ends, and the shank portion 10 of described ball rod is connected with described output shaft 5 axially locating by locking nut 12.
Wherein, be provided with filleted 13 between the bulb part 9 of ball rod and the shank portion 10, described bulb part 9 and filleted 13 are processed with induction hardening layer 14 by induction hardening process, and the thickness of induction hardening layer 14 is 3-5mm.
The axial movement value of ball rod is 0.05-0.09mm, and the bearing pivot angle α of integrated type joint shaft bearing unit is 6 degree.
The utility model can pass through or adopt existing techniques in realizing without the technical characteristics of describing; do not repeat them here; certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example; the variation that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement also should belong to protection domain of the present utility model.
Claims (6)
1. twin countershaft transmission main shaft relocation mechanism, comprise the main shaft that is connected with input shaft, it is characterized in that, the end of described main shaft is fixedly mounted on the bearing on the output shaft by integrated type joint shaft bearing unit, described integrated type joint shaft bearing unit comprises bearing outer ring, self-locking spring, ball rod, described bearing outer ring is positioned at described inner hole of spindle, described bearing outer ring comprises two hemisphere splitting along axis, described two hemisphere are connected to one by self-locking spring, the bulb part of ball rod is installed in the described bearing outer ring ball chamber, described bearing outer ring is by joint shaft bearing pressure ring axially locating, described joint shaft bearing pressure ring is welded and fixed along circumference and described spindle nose, and the shank portion of described ball rod is connected with described output shaft axially locating by locking nut.
2. twin countershaft transmission main shaft relocation mechanism according to claim 1, it is characterized in that, be provided with filleted between the bulb part of described ball rod and the shank portion, described bulb part and filleted are processed with the induction hardening layer by induction hardening process.
3. twin countershaft transmission main shaft relocation mechanism according to claim 2 is characterized in that, the thickness of described induction hardening layer is: 3-5mm.
4. twin countershaft transmission main shaft relocation mechanism according to claim 1 and 2 is characterized in that, the axial movement value of described ball rod is 0.05-0.09mm.
5. twin countershaft transmission main shaft relocation mechanism according to claim 1 and 2 is characterized in that, the bearing pivot angle α of described integrated type joint shaft bearing unit is 6 degree.
6. twin countershaft transmission main shaft relocation mechanism according to claim 1 is characterized in that, is provided with flying height between the lining of described front-end of spindle and input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389578 CN202690981U (en) | 2012-08-08 | 2012-08-08 | Floating mechanism for main shaft of twin countershaft transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389578 CN202690981U (en) | 2012-08-08 | 2012-08-08 | Floating mechanism for main shaft of twin countershaft transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690981U true CN202690981U (en) | 2013-01-23 |
Family
ID=47546606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389578 Withdrawn - After Issue CN202690981U (en) | 2012-08-08 | 2012-08-08 | Floating mechanism for main shaft of twin countershaft transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808930A (en) * | 2012-08-08 | 2012-12-05 | 中国重汽集团济南动力有限公司 | Floating mechanism for spindle of transmission with double intermediate shafts |
-
2012
- 2012-08-08 CN CN 201220389578 patent/CN202690981U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808930A (en) * | 2012-08-08 | 2012-12-05 | 中国重汽集团济南动力有限公司 | Floating mechanism for spindle of transmission with double intermediate shafts |
| CN102808930B (en) * | 2012-08-08 | 2016-03-16 | 中国重汽集团济南动力有限公司 | Twin countershaft transmission main shaft relocation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20160316 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |