CN205918882U - Oil groove is led in lubrication of gearbox declutch shift shaft - Google Patents
Oil groove is led in lubrication of gearbox declutch shift shaft Download PDFInfo
- Publication number
- CN205918882U CN205918882U CN201620960244.9U CN201620960244U CN205918882U CN 205918882 U CN205918882 U CN 205918882U CN 201620960244 U CN201620960244 U CN 201620960244U CN 205918882 U CN205918882 U CN 205918882U
- Authority
- CN
- China
- Prior art keywords
- shift fork
- fork axle
- declutch shift
- shift shaft
- oil guide
- 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 - Fee Related
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses an oil groove is led in lubrication of gearbox declutch shift shaft, including declutch shift shaft and gearbox housing, the last shift fork shaft hole that is provided with of gearbox housing, the one end of declutch shift shaft sets up in the declutch shift shaft downtheholely, be provided with the bush between the outer wall of declutch shift shaft and the inner wall in shift fork shaft hole, shift fork shaft hole and bush interference fit, declutch shift shaft and bush clearance fit, the declutch shift shaft sets up and be provided with the declutch shift shaft vestibule between the inner wall bottom surface in the terminal surface of the downthehole one end of declutch shift shaft and shift fork shaft hole, the declutch shift shaft set up in the downthehole one end of declutch shift shaft be provided with the oily recess of leading of two oppositions on the surface, the length of leading oily recess is greater than the downthehole degree of depth of declutch shift shaft. The utility model has the advantages of prior art's drawback, the reasonable novelty of structural design can be overcome to it.
Description
Technical field
This utility model is related to a kind of shifting fork shafts of gearbox lubrication oil guide groove, belongs to automotive field.
Background technology
At present, in most of mechanical gearboxes, shift fork axle is particularly important with the lubrication of housing contact position, and insufficient lubrication will
Lead to gearbox shifting power to become big or clamping stagnation, greatly reduce shift-feel and the safety in utilization of change speed gear box, and to life
Produce producer and bring imponderable loss.For this reason, in change speed gear box, shift fork axle must be good with the lubrication of housing contact position, and energy
Air in shift fork axis hole can smoothly be circulated with gear box oil, this requires that each change speed gear box producer is improved by various means
The lubrication circumstances of shift fork axle and housing contact position in change speed gear box, thus ensure the reliability of gearbox shifting.
Utility model content
In view of the shortcomings of the prior art, technical problem to be solved in the utility model is to provide a kind of change speed gear box
Shift fork axle lubricates oil guide groove, reduces shifting fork shafts of gearbox and housing contact area, improves shift fork axle and lubricates with housing contact position.
For solving above-mentioned technical problem, this utility model adopts the technical scheme that, a kind of shifting fork shafts of gearbox lubrication is led
Oil groove, including shift fork axle and case of transmission, case of transmission is provided with shift fork axis hole, one end of shift fork axle is arranged at shift fork
In axis hole；It is provided with bushing, shift fork axis hole and bushing interference fit between the inwall of the outer wall of described shift fork axle and shift fork axis hole,
Shift fork axle is coordinated with sleeve clearances；Described shift fork axle is arranged at the end face of one end of shift fork axle in the hole and the inwall bottom of shift fork axis hole
It is provided with shift fork axle vestibule between face；Described shift fork axle be arranged on the surface of one end of shift fork axle in the hole be provided with two opposed
Oil Guide groove, the length of Oil Guide groove is more than the depth of shift fork axle in the hole.
Optimize, above-mentioned shifting fork shafts of gearbox lubricates oil guide groove, described shift fork axle is cylindrical, massive pipe, Oil Guide groove
Width is the 4/9 of shift fork axle cross-sectional diameter.
Optimize, above-mentioned shifting fork shafts of gearbox lubricates oil guide groove, the length of described Oil Guide groove is the depth of shift fork axle in the hole
The 6/5 of degree.
The utility model has the advantage of the drawbacks of it can overcome prior art, reasonable in design novelty.The application's
Design, by arranging Oil Guide groove in the end of shift fork axle, is reduced shift fork axle and is connect with the contact surface of shift fork axis hole, reduces friction resistance
Power.And lubricating oil and air pass in and out shift fork axis hole, lubrication shift fork axle and the contact surface of shift fork axis hole by Oil Guide groove, prevent
Gearbox shifting power becomes big or clamping stagnation generation.Calculate through design, when the width of Oil Guide groove is shift fork axle cross-sectional diameter
4/9 when, lubricant effect preferably, and convenient is processed.The length of Oil Guide groove is the 6/5 of the depth of shift fork axle in the hole, so
Even if the bottom of shift fork axis hole can be entered into shift fork axle, lubricating oil also can enter into shift fork axle in the hole, provide necessary lubrication.
Brief description
Fig. 1 is the structural representation of shift fork axle of the present utility model；
Fig. 2 is the a-a cross section structure diagram of Fig. 1；
Fig. 3 is attachment structure schematic diagram of the present utility model；
Fig. 4 is the structural representation of bushing of the present utility model；
In figure: 1 be Oil Guide groove, 2 be case of transmission, 3 be bushing, 4 be shift fork axle, 5 be shift fork axis hole, 6
For shift fork axle vestibule.
Specific embodiment
The technical characterstic of the present invention is expanded on further below in conjunction with the accompanying drawings with specific embodiment.
This utility model is that a kind of shifting fork shafts of gearbox lubricates oil guide groove, including shift fork axle and case of transmission, variator
Shift fork axis hole is provided with housing, one end of shift fork axle is arranged at shift fork axle in the hole；The outer wall of described shift fork axle and shift fork axis hole
Inwall between be provided with bushing, shift fork axis hole and bushing interference fit, shift fork axle is coordinated with sleeve clearances；Described shift fork axle sets
It is placed between the end face of one end of shift fork axle in the hole and the inwall bottom surface of shift fork axis hole and be provided with shift fork axle vestibule；Described shift fork axle
Two opposed Oil Guide grooves are provided with the surface of the one end being arranged at shift fork axle in the hole, the length of Oil Guide groove is more than shift fork
Depth in axis hole.Described shift fork axle is cylindrical, massive pipe, and the width of Oil Guide groove is the 4/9 of shift fork axle cross-sectional diameter.
The length of described Oil Guide groove is the 6/5 of the depth of shift fork axle in the hole.
The utility model has the advantage of the drawbacks of it can overcome prior art, reasonable in design novelty.
In the design of the application, in shift fork axle 4, shift fork axle 4 is inserted in the shift fork axle with case of transmission 2 to Oil Guide groove 1
In the bushing 3 of hole 5 interference fit, it is gap cooperation.The length of Oil Guide groove 1 will have good during will guaranteeing gearbox shifting
Good Oil Guide.Because Oil Guide groove 1 is in shift fork axle 4, case of transmission 2 relevant position can no oil duct, make variator
Volume diminishes.
During gearshift, transmission oil and air flow in or out shift fork axle vestibule 6 by Oil Guide groove 1, to group
Fork shaft 4 is lubricated with bushing 3, makes shift process smooth, not clamping stagnation.
Certainly, described above is not to restriction of the present utility model, and this utility model is also not limited to the example above, this
The those of ordinary skill of technical field, in essential scope of the present utility model, change, remodeling, interpolation or the replacement made, all
Protection domain of the present utility model should be belonged to.
Claims (3)
1. a kind of shifting fork shafts of gearbox lubrication oil guide groove it is characterised in that: include shift fork axle and case of transmission, case of transmission
On be provided with shift fork axis hole, one end of shift fork axle is arranged at shift fork axle in the hole；The outer wall of described shift fork axle is interior with shift fork axis hole
It is provided with bushing, shift fork axis hole and bushing interference fit, shift fork axle is coordinated with sleeve clearances between wall；Described shift fork axle is arranged at
It is provided with shift fork axle vestibule between the inwall bottom surface of the end face of one end of shift fork axle in the hole and shift fork axis hole；Described shift fork axle setting
Two opposed Oil Guide grooves are provided with the surface of one end of shift fork axle in the hole, the length of Oil Guide groove is more than shift fork axis hole
Interior depth.
2. shifting fork shafts of gearbox according to claim 1 lubrication oil guide groove it is characterised in that: described shift fork axle is cylinder
Solid tubes, the width of Oil Guide groove is the 4/9 of shift fork axle cross-sectional diameter.
3. shifting fork shafts of gearbox according to claim 2 lubrication oil guide groove it is characterised in that: the length of described Oil Guide groove
For the depth of shift fork axle in the hole 6/5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620960244.9U CN205918882U (en) | 2016-08-26 | 2016-08-26 | Oil groove is led in lubrication of gearbox declutch shift shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620960244.9U CN205918882U (en) | 2016-08-26 | 2016-08-26 | Oil groove is led in lubrication of gearbox declutch shift shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918882U true CN205918882U (en) | 2017-02-01 |
Family
ID=57868785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620960244.9U Expired - Fee Related CN205918882U (en) | 2016-08-26 | 2016-08-26 | Oil groove is led in lubrication of gearbox declutch shift shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223772A (en) * | 2017-12-25 | 2018-06-29 | 杭州前进齿轮箱集团股份有限公司 | A kind of lubricating system for high speed wheel type excavator gearbox |
-
2016
- 2016-08-26 CN CN201620960244.9U patent/CN205918882U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223772A (en) * | 2017-12-25 | 2018-06-29 | 杭州前进齿轮箱集团股份有限公司 | A kind of lubricating system for high speed wheel type excavator gearbox |
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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: 20170201 Termination date: 20190826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |