CN202646331U - Axial positioning and reinforcing structure of spindle gear of double-middle-shaft gearbox - Google Patents
Axial positioning and reinforcing structure of spindle gear of double-middle-shaft gearbox Download PDFInfo
- Publication number
- CN202646331U CN202646331U CN 201220339474 CN201220339474U CN202646331U CN 202646331 U CN202646331 U CN 202646331U CN 201220339474 CN201220339474 CN 201220339474 CN 201220339474 U CN201220339474 U CN 201220339474U CN 202646331 U CN202646331 U CN 202646331U
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- tooth
- spline
- spindle
- internal
- main shaft
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Abstract
The utility model provides an axial positioning and reinforcing structure of a spindle gear of a double-middle-shaft gearbox. According to the technical scheme, a spindle width slot is formed in a spindle external spline; one tooth of the spindle external spline and positions at the two sides of the replaced tooth are right replaced by the spindle width slot; a spline width slot is formed in the internal spline sheet, and one tooth of the internal spline sheet and positions at two sides of the replaced tooth are right replaced by the spline width slot; the tooth of the spindle external spline is opposite to an internal tooth of an internal spline sheet, so as to axially position the internal spline sheet; and reinforced long keys are mounted in the spindle width slot and the spline width slot in a matched manner. The axial positioning and reinforcing structure provided by the utility model has the beneficial effects of simple structure, reasonable design, and convenience in implementation; and the problem that a positioning long key of the spindle gear is broken in a using process of the double middle shafts of a main box and a planetary gear train gearbox of a secondary box can be solved.
Description
Technical field
The utility model is that a kind of pair of intermediate-shaft speed changing box mainshaft gear axially locating strengthened structure.
Background technique
Two intermediate-shaft speed changing box transmitting torques are large, not bearing radial force effect of main shaft, be single splined shaft, by install with the main spindle multiple spline groove in long key make on the main shaft internal spline sheet internal tooth relative with the main shaft external tooth, axially locating internal spline sheet, and then axially locating mainshaft gear, this orientation type is simple in structure, but do not cause long bond fission because bad working environments and operator do not operate on request in actual use, and then cause main tank and damage, consequence is serious.
The intensity that the reliability of mainshaft gear axially locating depends on long key i.e. the anti-shear ability of long key, although many kinds of measures, comprise and use high performance material, the long key sectional shape of optimization, the two keys of employing etc., because long key is loaded on the main spindle multiple spline teeth groove, limited the sectional area of long key, long bond fission still happens occasionally, and needs to inquire into the possibility of taking the long key of mainshaft gear axially locating to strengthen structure.
Summary of the invention
The utility model is for the deficiencies in the prior art, provide a kind of simple in structure, reasonable in design, convenient two intermediate-shaft speed changing box mainshaft gear axially locating of implementing are strengthened the technological scheme of structure, and purpose is to solve the long bond fission problem in mainshaft gear location in the two jack shafts of main tank and the using process of odd-side planetary gear train gearbox.
The utility model is realized by following technical measures: a kind of pair of intermediate-shaft speed changing box mainshaft gear axially locating strengthened structure, the main shaft external splines is provided with a main shaft sipes, described main shaft sipes just replaces tooth of main shaft external splines and is substituted the position of tooth both sides, described internal spline sheet also is provided with a spline sipes, described spline sipes just replaces tooth of internal spline sheet and is substituted the position of tooth both sides, described main shaft external spline teeth is relative with described internal spline sheet internal tooth, cooperate in the axially locating internal spline sheet, described main shaft sipes and spline sipes to be equipped with and strengthen long key.
Concrete characteristics of the present utility model also have, and the long key of above-mentioned reinforcement is processed with the side fillet, and described internal spline sheet is processed with the internal tooth fillet, and described internal tooth fillet contacts with the side fillet of strengthening long key.
The beneficial effects of the utility model are: on the basis of the mainshaft gear positioning principle that does not change the two jack shafts of main tank and odd-side planetary gear train gearbox, by main shaft and internal spline sheet are optimized design, greatly increase the section area of strengthening long key, during heat treatment, in the situation that guarantees the long key surface hardness of reinforcement, reduce core hardness, improved the shock resistance of strengthening long key; Simultaneously internal spline sheet internal tooth is optimized with strengthening long keyed jointing synapsis, the stress that reduces part processing by the fillet design is concentrated, and increases simultaneously area of contact, reduces footprint pressure.The utility model greatly improves the long bond strength of mainshaft gear axially locating in the situation that does not reduce the main shaft twisting strength, better solved the mainshaft gear axially locating integrity problem in the two-pack shaft gearbox.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is A section enlarged view among Fig. 1.
Among the figure, 1, the internal spline sheet; 2, main shaft external splines; 3, the internal spline sheet is substituted the tooth place; 4, main shaft sipes; 5, internal tooth fillet; 6, side fillet; 7, strengthen long key.
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 pair of intermediate-shaft speed changing box mainshaft gear axially locating strengthened structure, main shaft external splines 2 is provided with a main shaft sipes 4, described main shaft sipes 4 just replaces 2 one teeth of main shaft external splines and is substituted the position of tooth both sides, described internal spline sheet 1 also is provided with a spline sipes, described spline sipes just replaces 4 one teeth of internal spline sheet and is substituted the position of tooth both sides, described main shaft external splines 2 teeth are relative with described internal spline sheet 1 internal tooth, cooperate in the axially locating internal spline sheet 1, described main shaft sipes 4 and spline sipes to be equipped with and strengthen long key 7.Strengthen long key 7 and be processed with side fillet 6, described internal spline sheet 1 is processed with internal tooth fillet 5, and described internal tooth fillet 5 contacts with the side fillet 6 of strengthening long key 7.
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 (2)
1. two intermediate-shaft speed changing box mainshaft gear axially locating are strengthened structure, it is characterized in that, the main shaft external splines is provided with a main shaft sipes, described main shaft sipes just replaces tooth of main shaft external splines and is substituted the position of tooth both sides, described internal spline sheet also is provided with a spline sipes, described spline sipes just replaces tooth of internal spline sheet and is substituted the position of tooth both sides, described main shaft external spline teeth is relative with described internal spline sheet internal tooth, cooperate in the axially locating internal spline sheet, described main shaft sipes and spline sipes to be equipped with and strengthen long key.
2. according to claim 1 pair of intermediate-shaft speed changing box mainshaft gear axially locating strengthened structure, it is characterized in that, the long key of described reinforcement is processed with the side fillet, and described internal spline sheet is processed with the internal tooth fillet, and described internal tooth fillet contacts with the side fillet of strengthening long key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339474 CN202646331U (en) | 2012-07-13 | 2012-07-13 | Axial positioning and reinforcing structure of spindle gear of double-middle-shaft gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220339474 CN202646331U (en) | 2012-07-13 | 2012-07-13 | Axial positioning and reinforcing structure of spindle gear of double-middle-shaft gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646331U true CN202646331U (en) | 2013-01-02 |
Family
ID=47415445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220339474 Expired - Fee Related CN202646331U (en) | 2012-07-13 | 2012-07-13 | Axial positioning and reinforcing structure of spindle gear of double-middle-shaft gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646331U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219963A (en) * | 2019-05-31 | 2019-09-10 | 陕西法士特齿轮有限责任公司 | A kind of twin countershaft transmission adjusting pad fixed structure |
-
2012
- 2012-07-13 CN CN 201220339474 patent/CN202646331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219963A (en) * | 2019-05-31 | 2019-09-10 | 陕西法士特齿轮有限责任公司 | A kind of twin countershaft transmission adjusting pad fixed structure |
| CN110219963B (en) * | 2019-05-31 | 2024-02-06 | 陕西法士特齿轮有限责任公司 | Double-intermediate-shaft speed changer adjusting pad fixing structure |
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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: 20130102 Termination date: 20150713 |
|
| EXPY | Termination of patent right or utility model |