CN204186946U - Gearbox shifting slide gear - Google Patents
Gearbox shifting slide gear Download PDFInfo
- Publication number
- CN204186946U CN204186946U CN201420641649.7U CN201420641649U CN204186946U CN 204186946 U CN204186946 U CN 204186946U CN 201420641649 U CN201420641649 U CN 201420641649U CN 204186946 U CN204186946 U CN 204186946U
- Authority
- CN
- China
- Prior art keywords
- gear
- shifting slide
- gearbox shifting
- described gear
- envelope face
- 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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Abstract
The utility model discloses a kind of gearbox shifting slide gear, comprise gear, the center of described gear is provided with central through bore, spline is provided with in described central through bore, described gear periphery wall is provided with fork slot, gear I and gear II successively along its axial direction, and the standard pitch diameter of described gear I is greater than the standard pitch diameter of described gear II; One end of all gear teeth of described gear I all gear teeth described gear I dorsad of one end of described gear II and described gear II dorsad is respectively equipped with the arc envelope face formed by circular arc chamfering.Gearbox shifting slide gear of the present utility model, more smooth-going when engaging with other gear structure engage a gears.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, is specifically related to a kind of gearbox shifting slide gear.
Background technique
Shifting slide gear is sleeved on gear shaft, and transfers torque on gear shaft, general employing feather key or spline joint between shifting slide gear and gear shaft, and utilizes shifting slide gear to realize speed change with engaging of other gear structures.
Although existing shifting slide gear can meet usage requirement to a certain extent, but when engaging with other gear structure engage a gears, the phenomenon of colliding with bite is there is toward contact, not only can cause can not engage a gear smoothly, but also the working life of shifting slide gear can be affected, and operating handle and the usability of gearbox etc. can be affected.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of gearbox shifting slide gear, more smooth-going when engaging with other gear structure engage a gears.
For achieving the above object, the utility model provides following technological scheme:
A kind of gearbox shifting slide gear, comprise gear, the center of described gear is provided with central through bore, spline is provided with in described central through bore, described gear periphery wall is provided with fork slot, gear I and gear II successively along its axial direction, and the standard pitch diameter of described gear I is greater than the standard pitch diameter of described gear II; One end of all gear teeth of described gear I all gear teeth described gear I dorsad of one end of described gear II and described gear II dorsad is respectively equipped with the arc envelope face formed by circular arc chamfering.
Further, the external diameter in described arc envelope face reduces gradually along the radially outer direction of described gear.
Further, seamlessly transit between described arc envelope face with the two side of the corresponding described gear teeth.
Further, the symmetrical line in described arc envelope face is circular arc line segment.
Further, the radius of curvature of the symmetrical line in described arc envelope face is 14mm.
Further, in described arc envelope face, the center of circle of all circular arcs is all positioned at on the straight line of the axes normal of described gear.
Further, described spline is involute splines.
The beneficial effects of the utility model are:
Gearbox shifting slide gear of the present utility model, by one end of all gear teeth gear I dorsad of one end of gear II and gear II dorsad of all gear teeth at gear I, arc envelope face is set, when gear I and gear II engage with other gear structure engage a gears, due to the existence in this arc envelope face, even if touch between the gear teeth of gear I and gear II and the gear teeth of other gear structures, arc envelope face also can produce a tangent line component, make the gear teeth of other gear structures along this smooth-going movement in arc envelope face, and finally realize the operation of engage a gear engagement, therefore, by arranging arc envelope face, engage a gear can be made to operate more smooth-going, avoid occurring colliding with and the phenomenon such as bite.
Accompanying drawing explanation
In order to make the purpose of this utility model, technological scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of the utility model gearbox shifting slide gear embodiment;
Fig. 2 is the A detail drawing of Fig. 1;
Fig. 3 is the B-B sectional drawing of Fig. 2.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, be the structural representation of the utility model gearbox shifting slide gear embodiment.The gearbox shifting slide gear of the present embodiment, comprise gear 1, the center of described gear 1 is provided with central through bore 2, spline 3 is provided with in described central through bore 2, described gear 1 periphery wall is provided with fork slot 4, gear I 5 and gear II 6 successively along its axial direction, and the standard pitch diameter of described gear I 5 is greater than the standard pitch diameter of described gear II 6; One end of all gear teeth of described gear I 5 all gear teeth described gear I 5 dorsad of one end of described gear II 6 and described gear II 6 dorsad is respectively equipped with the arc envelope face 7 formed by circular arc chamfering.
Further, the external diameter in the arc envelope face 7 of the present embodiment reduces gradually along the radially outer direction of described gear 1, and seamlessly transit between arc envelope face 7 with the two side of the corresponding described gear teeth, bite can be avoided further, make gear shift operation more smooth-going.
Further, the symmetrical line in the arc envelope face 7 of the present embodiment is circular arc line segment, and the radius of curvature R of the symmetrical line in arc envelope face 7 is 14mm, makes smooth gear shifting.In arc envelope face 7, the center of circle of all circular arcs is all positioned at on the straight line of the axes normal of described gear 1.
The spline 3 of the present embodiment is involute splines, its modulus m=2, tooth number Z=16, and gear I 5 and gear II 6 are cylindrical gears, the modulus m=3 of gear I 5, tooth number Z=21, the modulus m=3 of gear II 6, tooth number Z=16.The gear of the present embodiment is also provided with the carburizing and quenching layer that the degree of depth is 0.8-1.2mm, effectively can strengthens surface strength and the wear-resisting property of gear 1.
The gearbox shifting slide gear of the present embodiment, by one end of all gear teeth gear I dorsad of one end of gear II and gear II dorsad of all gear teeth at gear I, arc envelope face is set, when gear I and gear II engage with other gear structure engage a gears, due to the existence in this arc envelope face, even if touch between the gear teeth of gear I and gear II and the gear teeth of other gear structures, arc envelope face also can produce a tangent line component, make the gear teeth of other gear structures along this smooth-going movement in arc envelope face, and finally realize the operation of engage a gear engagement, therefore, by arranging arc envelope face, engage a gear can be made to operate more smooth-going, avoid occurring colliding with and the phenomenon such as bite.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (7)
1. a gearbox shifting slide gear, it is characterized in that: comprise gear, the center of described gear is provided with central through bore, spline is provided with in described central through bore, described gear periphery wall is provided with fork slot, gear I and gear II successively along its axial direction, and the standard pitch diameter of described gear I is greater than the standard pitch diameter of described gear II; One end of all gear teeth of described gear I all gear teeth described gear I dorsad of one end of described gear II and described gear II dorsad is respectively equipped with the arc envelope face formed by circular arc chamfering.
2. gearbox shifting slide gear according to claim 1, is characterized in that: the external diameter in described arc envelope face reduces gradually along the radially outer direction of described gear.
3. gearbox shifting slide gear according to claim 2, is characterized in that: seamlessly transit between described arc envelope face with the two side of the corresponding described gear teeth.
4. gearbox shifting slide gear according to claim 3, is characterized in that: the symmetrical line in described arc envelope face is circular arc line segment.
5. gearbox shifting slide gear according to claim 4, is characterized in that: the radius of curvature of the symmetrical line in described arc envelope face is 14mm.
6. gearbox shifting slide gear according to claim 1, is characterized in that: in described arc envelope face, the center of circle of all circular arcs is all positioned at on the straight line of the axes normal of described gear.
7. gearbox shifting slide gear according to claim 1, is characterized in that: described spline is involute splines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641649.7U CN204186946U (en) | 2014-10-31 | 2014-10-31 | Gearbox shifting slide gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641649.7U CN204186946U (en) | 2014-10-31 | 2014-10-31 | Gearbox shifting slide gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186946U true CN204186946U (en) | 2015-03-04 |
Family
ID=52618951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641649.7U Expired - Fee Related CN204186946U (en) | 2014-10-31 | 2014-10-31 | Gearbox shifting slide gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186946U (en) |
-
2014
- 2014-10-31 CN CN201420641649.7U patent/CN204186946U/en not_active Expired - Fee Related
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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: 20150304 Termination date: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |