CN204186953U - Gear box reverse gear driving gear - Google Patents
Gear box reverse gear driving gear Download PDFInfo
- Publication number
- CN204186953U CN204186953U CN201420641853.9U CN201420641853U CN204186953U CN 204186953 U CN204186953 U CN 204186953U CN 201420641853 U CN201420641853 U CN 201420641853U CN 204186953 U CN204186953 U CN 204186953U
- Authority
- CN
- China
- Prior art keywords
- gear
- spline
- driving gear
- box reverse
- driving
- 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
Links
Abstract
The utility model discloses a kind of gear box reverse gear driving gear, comprise gear, the center of described gear is provided with central through bore, and one end of described gear is provided with driving gear, and the other end is provided with spline; One end end face that described gear is provided with spline is provided with radial end face oil groove, and is provided with the radial direction oil hole communicated with described central through bore between described driving gear and spline; All spline tooths of described spline are provided with away from one end of described driving gear the arc envelope face formed by circular arc chamfering.Gear box reverse gear driving gear of the present utility model, can not only improve lubrication effect, and it is more steady when operating to put into gear.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, is specifically related to a kind of driving gear that reverses gear of gearbox.
Background technique
Gear box reverse gear driving gear generally comprises driving gear and for the spline with engagement sleeves, during installation, gear box reverse gear driving gear rotatable engagement is sleeved on reverse gear shaft, when sleeve is not with spline engagement, the driving gear that reverses gear dallies, when after sleeve and spline engagement, the driving gear that reverses gear drives reverse gear shaft to rotate by sleeve, to realize the object exported of reversing gear.Although the driving gear that reverses gear existing can meet usage requirement to a certain extent, but, still there is the defect of lubrication effect difference, and with sleeve put into gear operate time, there is bite toward contact, the problem such as to collide with, cause the operation of reversing gear of gearbox steady, affect the gear shift operation feel of gearbox, and also can cause reverse gear driving gear and sleeve accelerated wear test, affect working life.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of gear box reverse gear driving gear, can not only improve lubrication effect, and it is more steady when operating to put into gear.
For achieving the above object, the utility model provides following technological scheme:
A kind of gear box reverse gear driving gear, comprise gear, the center of described gear is provided with central through bore, and one end of described gear is provided with driving gear, and the other end is provided with spline; The both ends of the surface of described gear are respectively equipped with radial end face oil groove, and between described driving gear and spline, are provided with the radial direction oil hole communicated with described central through bore; All spline tooths of described spline are provided with away from one end of described driving gear the arc envelope face formed by circular arc chamfering.
Further, described radial direction oil hole is relative to the center uniform setting ringwise of described gear.
Further, described spline is involute splines, and described driving gear is cylindrical gears.
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 corresponding described spline tooth.
Further, the symmetrical line in described arc envelope face is the oblique line of inclination relative to the axis of described gear.
Further, the angle between the symmetrical line in described arc envelope face and the axis of described gear is 80 °.
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.
The beneficial effects of the utility model are:
Gear box reverse gear driving gear of the present utility model, by arranging radial direction oil hole between driving gear and spline, effectively can strengthen the lubrication effect between reverse gear and reverse gear shaft, reduces the wearing and tearing of reverse gear and reverse gear shaft, improves working life; By arranging the arc envelope face formed by circular arc chamfering in the end of spline, when spline and sleeve put into gear engage time, due to the existence in this arc envelope face, even if touch between spline and sleeve, arc envelope face also can produce a tangent line component, makes sleeve along this smooth-going movement in arc envelope face, and the final operation of engaging of putting into gear realized when reversing gear, therefore, by arranging arc envelope face, can making to put into gear, it is more smooth-going to operate.
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 gear box reverse gear driving gear embodiment;
Fig. 2 is the A detail drawing of Fig. 1;
Fig. 3 is the B-B sectional drawing of Fig. 3.
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 gear box reverse gear driving gear embodiment.The gear box reverse gear driving gear of the present embodiment, comprises gear 1, and the center of described gear 1 is provided with central through bore 2, and one end of described gear 1 is provided with driving gear 3, and the other end is provided with spline 4.The spline 4 of the present embodiment is the involute splines of modulus m=2, tooth number Z=40, and described driving gear 3 is the cylindrical gears of modulus m=4, tooth number Z=22.The two ends end face that gear 1 is provided with spline 4 is respectively equipped with radial end face oil groove 5, and between described driving gear 3 and spline 4, is provided with the radial direction oil hole 6 communicated with described central through bore 2.All spline tooths of the spline 4 of the present embodiment are provided with away from one end of described driving gear 3 the arc envelope face 7 formed by circular arc chamfering.Preferably, radial direction oil hole 6 is relative to the center uniform setting ringwise of described gear 1, and the radial direction oil hole 6 of the present embodiment is set to two.
Further, the external diameter in arc envelope face 7 reduces gradually along the radially outer direction of described gear 1, and seamlessly transit between arc envelope face 7 with the two side of corresponding described spline tooth, bite can be avoided further, make the operation of putting into gear when reversing gear more steady.Further, the symmetrical line in arc envelope face 7 is the oblique line of inclination relative to the axis of described gear 1, angle α between the symmetrical line in the arc envelope face 7 of the present embodiment and the axis of described gear 1 is 80 °, and 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 gear 1 of the present embodiment is also provided with the carburizing and quenching layer that the degree of depth is 0.8mm, effectively can strengthens surface hardness and the wear-resisting property of driving gear 3 and spline 4.
The gear box reverse gear driving gear of the present embodiment, by arranging radial direction oil hole between driving gear and spline, effectively can strengthen the lubrication effect between reverse gear and reverse gear shaft, reduces the wearing and tearing of reverse gear and reverse gear shaft, improves working life; By arranging the arc envelope face formed by circular arc chamfering in the end of spline, when spline and sleeve put into gear engage time, due to the existence in this arc envelope face, even if touch between spline and sleeve, arc envelope face also can produce a tangent line component, makes sleeve along this smooth-going movement in arc envelope face, and the final operation of engaging of putting into gear realized when reversing gear, therefore, by arranging arc envelope face, can making to put into gear, it is more smooth-going to operate.
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 (8)
1. a gear box reverse gear driving gear, it is characterized in that: comprise gear, the center of described gear is provided with central through bore, one end of described gear is provided with driving gear, and the other end is provided with spline; The both ends of the surface of described gear are respectively equipped with radial end face oil groove, and between described driving gear and spline, are provided with the radial direction oil hole communicated with described central through bore; All spline tooths of described spline are provided with away from one end of described driving gear the arc envelope face formed by circular arc chamfering.
2. gear box reverse gear driving gear according to claim 1, is characterized in that: described radial direction oil hole is relative to the center uniform setting ringwise of described gear.
3. gear box reverse gear driving gear according to claim 1, is characterized in that: described spline is involute splines, and described driving gear is cylindrical gears.
4. gear box reverse gear driving 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.
5. gear box reverse gear driving gear according to claim 4, is characterized in that: seamlessly transit between described arc envelope face with the two side of corresponding described spline tooth.
6. gear box reverse gear driving gear according to claim 5, is characterized in that: the symmetrical line in described arc envelope face is the oblique line of inclination relative to the axis of described gear.
7. gear box reverse gear driving gear according to claim 6, is characterized in that: the angle between the symmetrical line in described arc envelope face and the axis of described gear is 80 °.
8. gear box reverse gear driving 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641853.9U CN204186953U (en) | 2014-10-31 | 2014-10-31 | Gear box reverse gear driving gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641853.9U CN204186953U (en) | 2014-10-31 | 2014-10-31 | Gear box reverse gear driving gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186953U true CN204186953U (en) | 2015-03-04 |
Family
ID=52618958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641853.9U Expired - Fee Related CN204186953U (en) | 2014-10-31 | 2014-10-31 | Gear box reverse gear driving gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186953U (en) |
-
2014
- 2014-10-31 CN CN201420641853.9U patent/CN204186953U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20161031 |