CN204186952U - Duplex engaging gear - Google Patents
Duplex engaging gear Download PDFInfo
- Publication number
- CN204186952U CN204186952U CN201420641827.6U CN201420641827U CN204186952U CN 204186952 U CN204186952 U CN 204186952U CN 201420641827 U CN201420641827 U CN 201420641827U CN 204186952 U CN204186952 U CN 204186952U
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- gear
- duplex
- driving gear
- teeth
- external splines
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Abstract
The utility model discloses a kind of duplex engaging gear, comprise gear, the center of described gear is provided with central through bore, and the two ends of described gear are respectively equipped with driving gear I and external splines, is provided with driving gear II between described driving gear I and external splines; The both ends of the surface of described gear are respectively equipped with the end face oil groove communicated with described central through bore, and be provided with the radial direction oil hole I communicated with described central through bore between described driving gear I and driving gear II, described driving gear II be provided with the radial direction oil hole II communicated with described central through bore between described external splines; All spline tooths of described external splines are all set to teeth, the direction that the width of described teeth points to described driving gear I along described external splines reduces gradually, and the end face of described teeth described driving gear I is dorsad provided with the arc envelope face formed by circular arc chamfering.Not only put into gear smooth-going, can off-gear be prevented, and effectively can improve lubrication effect.
Description
Technical field
The utility model belongs to gear transmission technology field, is specifically related to a kind of duplex engaging 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.
Common duplicate gear only comprises two in the driving gear be wholely set, but, in gearbox, the general rotatable engagement of duplex engaging gear is sleeved on gear shaft, one end of duplex engaging gear is provided with for putting into gear the external splines engaged with engaging sleeve, utilizes putting into gear between external splines with engaging sleeve to engage the transmission realizing power.But, existing gearbox duplicate gear with engaging sleeve put into gear engage time, often exist and collide with and the phenomenon such as bite, cause gearbox duplicate gear smoothly not put into gear, and after putting into gear, also there is the defect of easy off-gear.In addition, the lubrication effect between duplex engaging gear and gear shaft is not good, often causes duplex engaging gear and gear shaft by inordinate wear, and then affects working life.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of duplex engaging gear, not only puts into gear smooth-going, can prevent off-gear, and effectively can improve lubrication effect.
For achieving the above object, the utility model provides following technological scheme:
A kind of duplex engaging gear, comprise gear, the center of described gear is provided with central through bore, and the two ends of described gear are respectively equipped with driving gear I and external splines, is provided with driving gear II between described driving gear I and external splines;
The both ends of the surface of described gear are respectively equipped with the end face oil groove communicated with described central through bore, and be provided with the radial direction oil hole I communicated with described central through bore between described driving gear I and driving gear II, described driving gear II be provided with the radial direction oil hole II communicated with described central through bore between described external splines;
All spline tooths of described external splines are all set to teeth, the direction that the width of described teeth points to described driving gear I along described external splines reduces gradually, and the end face of described teeth described driving gear I is dorsad provided with the arc envelope face formed by circular arc chamfering.
Further, described teeth is arranged axisymmetricly.
Further, 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 0-6 °, and in any two described cross sections, the angle between the dual-side in the cross section nearer apart from described gear axis is greater than the angle of the dual-side in the cross section far away apart from described gear axis.
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 be inclined to set 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.
Further, described radial direction oil hole I annular is uniform is set at least two, and described radial direction oil hole II annular is uniform is set at least two.
Further, described end face oil groove is set at least twice that are parallel to each other.
The beneficial effects of the utility model are:
Duplex engaging gear of the present utility model, by arranging end face oil groove on the end face of gear, arrange radial direction oil hole I and arrange radial direction oil hole II between driving gear I and driving gear II between external splines and driving gear II, lubricant oil can be made fully to enter in central through bore, ensure can obtain sufficient lubrication between duplicate gear and gear shaft; By the spline tooth of external splines is set to teeth, after duplicate gear engages with engaging sleeve, utilize the characteristic that teeth change width is different, can effectively avoid off-gear between driven gear and engaging sleeve, make gearbox performance more stable; By being provided with arc envelope face on the end face of teeth, even if touch between the spline tooth of external splines and the spline tooth of engaging sleeve, arc envelope face also can produce a tangent line component, make the spline tooth of engaging sleeve along this smooth-going movement in arc envelope face, the operation of the engagement and final realization is put into gear, namely 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 duplex engaging 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 duplex engaging gear embodiment.The duplex engaging gear of the present embodiment, comprise gear 1, the center of described gear 1 is provided with central through bore 2, and the two ends of described gear 1 are respectively equipped with driving gear I 3 and external splines 4, are provided with driving gear II 5 between described driving gear I 3 and external splines 4.The both ends of the surface of gear 1 are respectively equipped with the end face oil groove 6 communicated with described central through bore 2, and between described driving gear I 3 and driving gear II 5, be provided with the radial direction oil hole I 7 communicated with described central through bore 2, be provided with the radial direction oil hole II 8 communicated with described central through bore 2 between described driving gear II 5 with described external splines 4.All spline tooths of external splines 4 are all set to teeth 9, the direction that the width of described teeth 9 points to described driving gear I 3 along described external splines 4 reduces gradually, and the end face of teeth 9 driving gear I 3 is dorsad provided with the arc envelope face 10 formed by circular arc chamfering.Radial direction oil hole I 7 annular is uniform is set at least two, and radial direction oil hole II 8 annular is uniform is set at least two, and end face oil groove 6 is set at least twice be parallel to each other.Radial direction oil hole I 7 annular of the present embodiment is uniform is set to two, and radial direction oil hole II 8 annular is uniform is set to two, two end faces of gear 1 is respectively equipped with the end face oil groove 6 that twice are parallel to each other.
Further, teeth 9 is arranged axisymmetricly, fall in described teeth 9 symmetry plane and angle α between the dual-side in the cross section intercepted on corresponding described teeth 9 with the plane of the axis being parallel of described gear 1 is 0-6 °, and in any two described cross sections, the angle between the dual-side in the cross section nearer apart from described gear 1 axis is greater than the angle of the dual-side in the cross section far away apart from described gear 1 axis.Namely the angle between teeth 9 Topland bi-side is 0 °, angle between the dual-side in the cross section of teeth 9 tooth root place intercepting is 6 °, adopts the teeth 9 of this structure, can not only prevent off-gear, and the structural strength of external splines 4 can be ensured, its power transmission ability can not be affected.
The external diameter in the described arc envelope face 10 of the present embodiment reduces gradually along the radially outer direction of described gear 1, and seamlessly transits between arc envelope face 10 with the two side of corresponding described teeth, can avoid bite phenomenon further.The symmetrical line in arc envelope face 10 is the oblique line be inclined to set relative to the axis of described gear 1, angle β between the symmetrical line in the arc envelope face 10 of the present embodiment and the axis of gear 1 is 80 °, and in arc envelope face 10, 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 I 3 of the present embodiment is the cylindrical gears of modulus m=3.5, tooth number Z=21, and driving gear II 5 is the cylindrical gears of modulus m=3.5, tooth number Z=43, and external splines 4 is the involute splines of modulus m=2, tooth number Z=34.Gear 1 is provided with the carburizing and quenching layer that the degree of depth is 0.56-0.84mm, can effectively strengthen surface strength and wear-resisting property.
The duplex engaging gear of the present embodiment, by arranging end face oil groove on the end face of gear, arrange radial direction oil hole I and arrange radial direction oil hole II between driving gear I and driving gear II between external splines and driving gear II, lubricant oil can be made fully to enter in central through bore, ensure can obtain sufficient lubrication between duplicate gear and gear shaft; By the spline tooth of external splines is set to teeth, after duplicate gear engages with engaging sleeve, utilize the characteristic that teeth change width is different, can effectively avoid off-gear between driven gear and engaging sleeve, make gearbox performance more stable; By being provided with arc envelope face on the end face of teeth, even if touch between the spline tooth of external splines and the spline tooth of engaging sleeve, arc envelope face also can produce a tangent line component, make the spline tooth of engaging sleeve along this smooth-going movement in arc envelope face, the operation of the engagement and final realization is put into gear, namely 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 (10)
1. a duplex engaging gear, it is characterized in that: comprise gear, the center of described gear is provided with central through bore, and the two ends of described gear are respectively equipped with driving gear I and external splines, is provided with driving gear II between described driving gear I and external splines;
The both ends of the surface of described gear are respectively equipped with the end face oil groove communicated with described central through bore, and be provided with the radial direction oil hole I communicated with described central through bore between described driving gear I and driving gear II, described driving gear II be provided with the radial direction oil hole II communicated with described central through bore between described external splines;
All spline tooths of described external splines are all set to teeth, the direction that the width of described teeth points to described driving gear I along described external splines reduces gradually, and the end face of described teeth described driving gear I is dorsad provided with the arc envelope face formed by circular arc chamfering.
2. duplex engaging gear according to claim 1, is characterized in that: described teeth is arranged axisymmetricly.
3. duplex engaging gear according to claim 2, it 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 0-6 °, and in any two described cross sections, the angle between the dual-side in the cross section nearer apart from described gear axis is greater than the angle of the dual-side in the cross section far away apart from described gear axis.
4. duplex engaging gear according to claim 2, is characterized in that: the external diameter in described arc envelope face reduces gradually along the radially outer direction of described gear.
5. duplex engaging gear according to claim 4, is characterized in that: seamlessly transit between described arc envelope face with the two side of corresponding described teeth.
6. duplex engaging gear according to claim 5, is characterized in that: the symmetrical line in described arc envelope face is the oblique line be inclined to set relative to the axis of described gear.
7. duplex engaging 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. duplex engaging 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.
9. duplex engaging gear according to claim 1, is characterized in that: described radial direction oil hole I annular is uniform is set at least two, and described radial direction oil hole II annular is uniform is set at least two.
10. duplex engaging gear according to claim 9, is characterized in that: described end face oil groove is set at least twice be parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641827.6U CN204186952U (en) | 2014-10-31 | 2014-10-31 | Duplex engaging gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641827.6U CN204186952U (en) | 2014-10-31 | 2014-10-31 | Duplex engaging gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186952U true CN204186952U (en) | 2015-03-04 |
Family
ID=52618957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641827.6U Expired - Fee Related CN204186952U (en) | 2014-10-31 | 2014-10-31 | Duplex engaging gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270802A (en) * | 2019-07-05 | 2019-09-24 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of duplicate gear |
-
2014
- 2014-10-31 CN CN201420641827.6U patent/CN204186952U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270802A (en) * | 2019-07-05 | 2019-09-24 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of duplicate gear |
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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: 20151031 |
|
| EXPY | Termination of patent right or utility model |