CN204267659U - gearbox low gear driven gear - Google Patents
gearbox low gear driven gear Download PDFInfo
- Publication number
- CN204267659U CN204267659U CN201420641541.8U CN201420641541U CN204267659U CN 204267659 U CN204267659 U CN 204267659U CN 201420641541 U CN201420641541 U CN 201420641541U CN 204267659 U CN204267659 U CN 204267659U
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- gear
- face
- teeth
- driven gear
- gearbox low
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Abstract
The utility model discloses a kind of gearbox low gear driven 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 external splines; The two ends end face of described gear is respectively equipped with the end face oil groove leading to described central through bore, the end face that described gear is positioned at side, described driving gear place is provided with annular groove, is provided with the inclined oil hole of air leading to described central through bore in described annular groove; All spline tooths of described external splines are all set to teeth, the direction that the width of described teeth points to driving gear along described external splines reduces gradually, and the end face of described teeth described driving gear is dorsad provided with the arc envelope face formed by circular arc chamfering.Gearbox low gear driven gear of the present utility model, can not only improve lubrication effect, and can prevent off-gear.
Description
Technical field
The utility model belongs to gear transmission technology field, is specifically related to a kind of gearbox low gear driven gear.
Background technique
Gearbox is made up of gear and axle, and produce variable-speed torque-converting by different Gear combination, its function mainly contains: 1, change velocity ratio; 2, in the constant situation of hand engine rotation, automobile can be fallen back traveling; 3, utilize neutral, interrupt transmission of power, to start to enable motor, idling, and be convenient to shift of transmission or carry out Power output.
Gearbox low gear driven gear generally adopts the mode of rotatable engagement to be sleeved on gear shaft, when low gear driven gear separates with engaging sleeve, low gear driven gear dallies on gear shaft, when low gear driven gear and engaging sleeve put into gear engage time, low gear driven gear is rotated by engaging sleeve gear shaft, and then realizes the object of transmission of power.Owing to there is relative movement when low gear driven gear dallies and between gear shaft, therefore, need between low gear driven gear and gear shaft to lubricate, and lubrication effect between existing low gear driven gear and gear shaft is poor, causes the working life of low gear driven gear lower; In addition, also there is the defect of easy off-gear in existing low gear driven gear.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of gearbox low gear driven gear, can not only improve lubrication effect, and can prevent off-gear.
For achieving the above object, the utility model provides following technological scheme:
A kind of gearbox low gear driven 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 external splines; The two ends end face of described gear is respectively equipped with the end face oil groove leading to described central through bore, the end face that described gear is positioned at side, described driving gear place is provided with annular groove, is provided with the inclined oil hole of air leading to described central through bore in described annular groove; All spline tooths of described external splines are all set to teeth, the direction that the width of described teeth points to driving gear along described external splines reduces gradually, and the end face of described teeth described driving gear is dorsad provided with the arc envelope face formed by circular arc chamfering.
Further, the two ends end face of described gear is respectively equipped with at least twice end face oil groove be parallel to each other.
Further, described inclined oil hole of air annular is uniform is set at least two.
Further, described teeth is arranged axisymmetricly.
Further, described teeth symmetry plane is fallen in and angle between the dual-side in the cross section intercepted on corresponding described teeth with the plane of the axis being parallel of described gear is 7 °.
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 teeth.
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:
Gearbox low gear driven gear of the present utility model, by arranging end face oil groove and arrange the inclined oil hole of air leading to central through bore on the two ends end face of gear in annular groove, lubricant oil can be made fully to enter in central through bore, namely can improve lubrication effect, reduce the wearing and tearing between low gear driven gear and gear shaft; By the spline tooth of external splines is set to teeth, after engaging gear of putting into gear engages with engaging sleeve, utilize the characteristic that teeth change width is different, can effectively avoid off-gear between driving gear and engaging sleeve, make gearbox performance more stable; By arranging arc envelope face on the end face of teeth, when put into gear engaging gear and engaging sleeve put into gear engage time more smooth-going.
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 low gear driven gear embodiment;
Fig. 2 is the A detail drawing of Fig. 1;
Fig. 3 is the B direction view of Fig. 2;
Fig. 4 is the C-C 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 low gear driven gear embodiment.The gearbox low gear driven 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 external splines 4.The two ends end face of described gear 1 is respectively equipped with the end face oil groove 5 leading to described central through bore 2, the end face that described gear 1 is positioned at side, described driving gear 3 place is provided with annular groove 6, is provided with the inclined oil hole of air 7 leading to described central through bore 2 in described annular groove 6.All spline tooths of described external splines 4 are all set to teeth 8, the direction that the width of described teeth 8 points to driving gear 3 along described external splines 4 reduces gradually, and the end face of described teeth 8 described driving gear 3 is dorsad provided with the arc envelope face 9 formed by circular arc chamfering.
Further, the two ends end face of gear 1 is respectively equipped with at least twice end face oil groove 5 be parallel to each other, inclined oil hole of air 7 annular is uniform is set at least two, the two ends end face of the gear 1 of the present embodiment is respectively equipped with the twice end face oil groove 5 be parallel to each other, inclined oil hole of air 7 annular is uniform is set to two, effectively can improve lubrication effect.
Further, teeth 8 is arranged axisymmetricly, fall in described teeth 8 symmetry plane and angle α between the dual-side in the cross section intercepted on corresponding described teeth 8 with the plane of the axis being parallel of described gear 1 is equal, and be 7 °, adopt the teeth 8 of this structure, can effectively prevent external splines with engaging sleeve put into gear engage after off-gear.
Further, the external diameter in arc envelope face 9 reduces gradually along the radially outer direction of described gear 1, and seamlessly transits between arc envelope face 9 with the two side of corresponding described teeth 8, make external splines with engaging sleeve put into gear engage time more smooth-going.The symmetrical line in arc envelope face 9 is the oblique line of inclination relative to the axis of described gear 1, angle β between the symmetrical line in the arc envelope face 9 of the present embodiment and the axis of described gear 1 is 80 °, and in arc envelope face 9, 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 driving gear of the present embodiment is the cylindrical gears of modulus m=3, tooth number Z=46, and external splines is modulus m=2, the involute splines of tooth number Z=30, and gear is provided with the carburized case that the degree of depth is 0.8-1.2mm, can effectively improve surface strength and wear-resisting property.
The gearbox low gear driven gear of the present embodiment, by arranging end face oil groove and arrange the inclined oil hole of air leading to central through bore on the two ends end face of gear in annular groove, lubricant oil can be made fully to enter in central through bore, namely can improve lubrication effect, reduce the wearing and tearing between low gear driven gear and gear shaft; By the spline tooth of external splines is set to teeth, after engaging gear of putting into gear engages with engaging sleeve, utilize the characteristic that teeth change width is different, can effectively avoid off-gear between driving gear and engaging sleeve, make gearbox performance more stable; By arranging arc envelope face on the end face of teeth, when put into gear engaging gear and engaging sleeve put into gear engage time more smooth-going.
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 (10)
1. a gearbox low gear driven 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 external splines; The two ends end face of described gear is respectively equipped with the end face oil groove leading to described central through bore, the end face that described gear is positioned at side, described driving gear place is provided with annular groove, is provided with the inclined oil hole of air leading to described central through bore in described annular groove; All spline tooths of described external splines are all set to teeth, the direction that the width of described teeth points to driving gear along described external splines reduces gradually, and the end face of described teeth described driving gear is dorsad provided with the arc envelope face formed by circular arc chamfering.
2. gearbox low gear driven gear according to claim 1, is characterized in that: the two ends end face of described gear is respectively equipped with at least twice end face oil groove be parallel to each other.
3. gearbox low gear driven gear according to claim 2, is characterized in that: described inclined oil hole of air annular is uniform is set at least two.
4. the gearbox low gear driven gear according to any one of claim 1-3, is characterized in that: described teeth is arranged axisymmetricly.
5. gearbox low gear driven gear according to claim 4, is characterized in that: fall in described teeth symmetry plane and angle between the dual-side in the cross section intercepted on corresponding described teeth with the plane of the axis being parallel of described gear is 7 °.
6. gearbox low gear driven gear according to claim 4, is characterized in that: the external diameter in described arc envelope face reduces gradually along the radially outer direction of described gear.
7. gearbox low gear driven gear according to claim 6, is characterized in that: seamlessly transit between described arc envelope face with the two side of corresponding described teeth.
8. gearbox low gear driven gear according to claim 7, 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.
9. gearbox low gear driven gear according to claim 8, is characterized in that: the angle between the symmetrical line in described arc envelope face and the axis of described gear is 80 °.
10. gearbox low gear driven gear according to claim 4, 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 |
|---|---|---|---|
| CN201420641541.8U CN204267659U (en) | 2014-10-31 | 2014-10-31 | gearbox low gear driven gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641541.8U CN204267659U (en) | 2014-10-31 | 2014-10-31 | gearbox low gear driven gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267659U true CN204267659U (en) | 2015-04-15 |
Family
ID=52802530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641541.8U Expired - Fee Related CN204267659U (en) | 2014-10-31 | 2014-10-31 | gearbox low gear driven gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267659U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909758A (en) * | 2016-05-17 | 2016-08-31 | 苏州威富达精密机械制造有限公司 | Intermediate straight gear |
| CN106641181A (en) * | 2016-12-20 | 2017-05-10 | 赛克思液压科技股份有限公司 | Gear with end face lubricating structure |
| CN107269800A (en) * | 2017-08-11 | 2017-10-20 | 苏州顺革智能科技有限公司 | A kind of gear of oil storage lubrication |
| CN108571581A (en) * | 2017-03-13 | 2018-09-25 | 本田技研工业株式会社 | Power transmission |
-
2014
- 2014-10-31 CN CN201420641541.8U patent/CN204267659U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909758A (en) * | 2016-05-17 | 2016-08-31 | 苏州威富达精密机械制造有限公司 | Intermediate straight gear |
| CN106641181A (en) * | 2016-12-20 | 2017-05-10 | 赛克思液压科技股份有限公司 | Gear with end face lubricating structure |
| CN108571581A (en) * | 2017-03-13 | 2018-09-25 | 本田技研工业株式会社 | Power transmission |
| CN107269800A (en) * | 2017-08-11 | 2017-10-20 | 苏州顺革智能科技有限公司 | A kind of gear of oil storage lubrication |
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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: 20150415 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |