CN203756916U - Gear out-of-gear preventing structure of tractor speed changing box - Google Patents
Gear out-of-gear preventing structure of tractor speed changing box Download PDFInfo
- Publication number
- CN203756916U CN203756916U CN201420131981.9U CN201420131981U CN203756916U CN 203756916 U CN203756916 U CN 203756916U CN 201420131981 U CN201420131981 U CN 201420131981U CN 203756916 U CN203756916 U CN 203756916U
- Authority
- CN
- China
- Prior art keywords
- gear
- external splines
- driven gear
- tooth
- toothholder
- 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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- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of tractor speed changing boxes and relates to a gear out-of-gear preventing structure of a tractor speed changing box. The gear out-of-gear preventing structure of the tractor speed changing box comprises a transmission shaft, a driven gear and a toothholder, wherein the driven gear and the toothholder are arranged on the transmission shaft in sequence. External splines are arranged on the side, close to the toothholder, of a body of the driven gear in parallel, a mesh sleeve with internal splines is arranged on the external splines of the toothholder in a sliding mode, the mesh sleeve can slide to the external splines on the driven gear from the external splines on the toothholder, the two side faces of each spline tooth of the external splines on the driven gear are both inclined towards the inner side to form reverse conical teeth with an included angle, the two side faces of each spline tooth of the internal splines on the mesh sleeve are both inclined towards the inner side to form reverse conical teeth with an included angle, the external splines are made to have acting force for preventing the mesh sleeve from moving towards the toothholder when the reverse conical teeth on the external splines on the driven gear and the reverse conical teeth of the internal splines on the mesh sleeve are meshed, and the gear out-of-gear preventing structure is suitable for the wheel-type tractor speed changing box.
Description
Technical field
The utility model belongs to gear box of tractor technical field, refers in particular to a kind of gear anticreep mark structure of gear box of tractor.
Background technique
At present, internal spline on external splines and the engaging sleeve being set up in parallel on the driven gear that on wheeled tractor gearbox, engage a gear is used is involute splines, design without back taper, in the time that load is large and accuracy of manufacturing is low, external splines on internal spline and driven gear on engaging sleeve articulates rear easily out of supply, causes transmission failure.
Summary of the invention
The gear anticreep mark structure of the gear box of tractor after the purpose of this utility model is to provide a kind of engaging sleeve and driven gear and articulates.
The purpose of this utility model is achieved in that
A kind of gear anticreep mark structure of gear box of tractor, comprise transmission shaft and be successively set on the driven gear on transmission shaft, toothholder, in main body by the driven gear of toothholder one side, be set side by side with external splines, on external splines on toothholder, slide and be provided with and can slide into the engaging sleeve with internal spline on the external splines on driven gear by the external splines on toothholder, the bi-side of each key tooth of the external splines on described driven gear are all formed slopely the inverted cone tooth with angle to the inside, the bi-side of each key tooth of the internal spline on engaging sleeve are all formed slopely the inverted cone tooth with angle to the inside, while making the inverted cone tooth of the internal spline on inverted cone tooth and the engaging sleeve on the external splines on driven gear intermeshing, external splines has the active force that stops engaging sleeve to move to toothholder direction.
Internal spline on above-mentioned engaging sleeve is made up of left inside spline and right inside spline, is provided with annular interval trough between the internal spline of left and right.
Inverted cone tooth on above-mentioned engaging sleeve is arranged on left inside spline or right inside spline, and the plane of inclination arranging on the side of the each key tooth on described inverted cone tooth is dwindled and forms gradually to the wall thickness of engaging sleeve directionkeys tooth by driven gear.
Internal spline on external splines and engaging sleeve on above-mentioned driven gear is involute gear, and described inverted cone tooth is all to make on the matrix of described involute gear.
The plane of inclination arranging on the side of each key tooth of the external splines on above-mentioned driven gear is dwindled and forms gradually to the wall thickness of driven gear directionkeys tooth by engaging sleeve.
Each side of the bi-side of each key tooth of above-mentioned inverted cone tooth is 1.5-3 degree with the angle of the straight line paralleling to the axis.
Each side of the bi-side of each key tooth of above-mentioned inverted cone tooth is 2.5 degree with the angle of the straight line paralleling to the axis.
The utility model compared to existing technology outstanding and useful technique effect is:
Intermeshing the internal spline on the external splines on driven gear and engaging sleeve key tooth is arranged to inverted cone tooth by the utility model, while making its intermeshing transmission, external splines on driven gear is formed with the out-of-gear active force of external splines on internal spline and the driven gear preventing on engaging sleeve to the internal spline on engaging sleeve, guarantee positive engagement and effective driving force square, be applicable to the gear anticreep mark structure of wheeled tractor gearbox.
Brief description of the drawings
Fig. 1 is the sectional view of driven gear of the present utility model.
Fig. 2 is the A portion enlarged view of Fig. 1.
Fig. 3 is that the B of Fig. 2 is to view.
Fig. 4 is the sectional view of engaging sleeve of the present utility model.
Fig. 5 is the C portion enlarged view of Fig. 4.
Fig. 6 is that the D of Fig. 4 is to view.
Fig. 7 is that the utility model is arranged on the structure sectional view in gear box of tractor.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1-Fig. 7:
A kind of gear anticreep mark structure of gear box of tractor, comprise transmission shaft 10 and be successively set on the driven gear 40 on transmission shaft 10, toothholder 20, in main body by the driven gear 40 of toothholder 20 1 sides, be set side by side with external splines 41, on external splines on toothholder 20, slide and be provided with and can slide into the engaging sleeve 30 with internal spline on the external splines 41 on driven gear 40 by the external splines on toothholder 20, the bi-side 42 of each key tooth of the external splines 41 on described driven gear 40 are all formed slopely the inverted cone tooth with angle to the inside, the bi-side 34 of each key tooth of the internal spline on engaging sleeve 30 are all formed slopely the inverted cone tooth with angle to the inside, while making the inverted cone tooth of the internal spline on inverted cone tooth and the engaging sleeve 30 on the external splines 41 on driven gear 40 intermeshing, external splines 41 has the active force that stops engaging sleeve 30 to move to toothholder 20 directions.
Internal spline on above-mentioned engaging sleeve 30 is made up of left inside spline 31 and right inside spline 32, between left and right internal spline 31,32, is provided with annular interval trough 33.
Inverted cone tooth on above-mentioned engaging sleeve 30 is arranged on left inside spline 31 or right inside spline 32, and the plane of inclination arranging on the side 34 of the each key tooth on described inverted cone tooth is dwindled and forms gradually to the wall thickness of engaging sleeve 30 directionkeys teeth by driven gear 40.
Internal spline on external splines 41 and engaging sleeve 30 on above-mentioned driven gear 40 is involute gear, and described inverted cone tooth is all to make on the matrix of described involute gear.
The plane of inclination arranging on the side 42 of each key tooth of the external splines 41 on above-mentioned driven gear 40 is dwindled and forms gradually to the wall thickness of driven gear 40 directionkeys teeth by engaging sleeve 30.
The angle of each side 42,34 of the bi-side of each key tooth of above-mentioned inverted cone tooth and the straight line 43,35 paralleling to the axis is 1.5-3 degree.
The angle of each side 42,34 of the bi-side of each key tooth of above-mentioned inverted cone tooth and the straight line 43,35 paralleling to the axis is 2.5 degree.
Above-described embodiment is only preferred embodiment of the present utility model, not limits according to this protection domain of the present utility model, therefore: all equivalences of doing according to structure of the present utility model, shape, principle change, within all should being covered by protection domain of the present utility model.
Claims (7)
1. the gear anticreep mark structure of a gear box of tractor, comprise transmission shaft and be successively set on the driven gear on transmission shaft, toothholder, in main body by the driven gear of toothholder one side, be set side by side with external splines, on external splines on toothholder, slide and be provided with and can slide into the engaging sleeve with internal spline on the external splines on driven gear by the external splines on toothholder, it is characterized in that: the bi-side of each key tooth of the external splines on described driven gear are all formed slopely the inverted cone tooth with angle to the inside, the bi-side of each key tooth of the internal spline on engaging sleeve are all formed slopely the inverted cone tooth with angle to the inside, while making the inverted cone tooth of the internal spline on inverted cone tooth and the engaging sleeve on the external splines on driven gear intermeshing, external splines has the active force that stops engaging sleeve to move to toothholder direction.
2. the gear anticreep mark structure of a kind of gear box of tractor according to claim 1, is characterized in that: the internal spline on described engaging sleeve is made up of left inside spline and right inside spline, is provided with annular interval trough between the internal spline of left and right.
3. the gear anticreep mark structure of a kind of gear box of tractor according to claim 2, it is characterized in that: the inverted cone tooth on described engaging sleeve is arranged on left inside spline or right inside spline, the plane of inclination arranging on the side of the each key tooth on described inverted cone tooth is to be dwindled and form gradually to the wall thickness of engaging sleeve directionkeys tooth by driven gear.
4. the gear anticreep mark structure of a kind of gear box of tractor according to claim 1, it is characterized in that: the internal spline on external splines and engaging sleeve on described driven gear is involute gear, described inverted cone tooth is all to make on the matrix of described involute gear.
5. the gear anticreep mark structure of a kind of gear box of tractor according to claim 1, is characterized in that: the plane of inclination arranging on the side of each key tooth of the external splines on described driven gear is to be dwindled and form gradually to the wall thickness of driven gear directionkeys tooth by engaging sleeve.
6. according to the gear anticreep mark structure of a kind of gear box of tractor described in claim 1-5 any one, it is characterized in that: each side of the bi-side of each key tooth of described inverted cone tooth is 1.5-3 degree with the angle of the straight line paralleling to the axis.
7. the gear anticreep mark structure of a kind of gear box of tractor according to claim 5, is characterized in that: each side of the bi-side of each key tooth of described inverted cone tooth is 2.5 degree with the angle of the straight line paralleling to the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131981.9U CN203756916U (en) | 2014-03-22 | 2014-03-22 | Gear out-of-gear preventing structure of tractor speed changing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131981.9U CN203756916U (en) | 2014-03-22 | 2014-03-22 | Gear out-of-gear preventing structure of tractor speed changing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756916U true CN203756916U (en) | 2014-08-06 |
Family
ID=51252195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131981.9U Expired - Lifetime CN203756916U (en) | 2014-03-22 | 2014-03-22 | Gear out-of-gear preventing structure of tractor speed changing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821975A (en) * | 2019-10-21 | 2020-02-21 | 中冶陕压重工设备有限公司 | Tooth-type clutch structure without blocking at any angle |
-
2014
- 2014-03-22 CN CN201420131981.9U patent/CN203756916U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821975A (en) * | 2019-10-21 | 2020-02-21 | 中冶陕压重工设备有限公司 | Tooth-type clutch structure without blocking at any angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Zhenghua Inventor before: Chen Zhengwen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: CHEN ZHENGWEN TO: CHEN ZHENGHUA |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |