CN204267646U - Auxiliary transmission combined cover - Google Patents
Auxiliary transmission combined cover Download PDFInfo
- Publication number
- CN204267646U CN204267646U CN201420641362.4U CN201420641362U CN204267646U CN 204267646 U CN204267646 U CN 204267646U CN 201420641362 U CN201420641362 U CN 201420641362U CN 204267646 U CN204267646 U CN 204267646U
- Authority
- CN
- China
- Prior art keywords
- combined cover
- envelope face
- arc envelope
- auxiliary transmission
- spline
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 40
- 210000000515 tooth Anatomy 0.000 claims abstract description 15
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a kind of auxiliary transmission combined cover, comprise combined cover body, the center of described combined cover body is provided with central through bore, described central through bore comprises smooth section and reaming section, the internal diameter of described reaming section is greater than the internal diameter of described smooth section, the inwall of described smooth section is provided with involute inner spline, the inwall of described reaming section is provided with transmission internal gear, the periphery wall of the described combined cover body corresponding with described smooth section is provided with fork slot, and the periphery wall of all combined cover bodies corresponding with described reaming section is provided with involute outer spline; One end of all gear teeth of described transmission internal gear described fork slot dorsad is equipped with the arc envelope face I formed by circular arc chamfering, and all spline tooths of described involute outer spline are equipped with towards one end of described fork slot the arc envelope face II formed by circular arc chamfering.Auxiliary transmission combined cover of the present utility model, can not only slide reposefully on axle, and more smooth-going when engaging with driving gear engage a gear.
Description
Technical field
The utility model belongs to transmission technology field, is specifically related to a kind of auxiliary transmission combined cover.
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, velocity ratio is changed;
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 shifting of transmission or carry out Power output.
Auxiliary transmission combined cover adopts single-degree-of-freedom to be slidably matched and to be sleeved on axle, slides under the effect of shift fork along axle, and realizes engage a gear between different driving gears and engage or to be out of supplyly separated.Although existing output shaft of gear-box driving cog cover can meet usage requirement to a certain extent, but still there is driving cog and be enclosed within jiggly defect that output shaft slides, and when engaging with output shaft gear engage a gear, there is bite toward contact, the phenomenon such as to collide with, the serious operating characteristics that have impact on gearbox and operating handle, and cause reduce the working life of gearbox.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of auxiliary transmission combined cover, can not only slide reposefully on axle, and more smooth-going when engaging with driving gear engage a gear.
For achieving the above object, the utility model provides following technological scheme:
A kind of auxiliary transmission combined cover, comprise combined cover body, the center of described combined cover body is provided with central through bore, described central through bore comprises smooth section and reaming section, the internal diameter of described reaming section is greater than the internal diameter of described smooth section, the inwall of described smooth section is provided with involute inner spline, the inwall of described reaming section is provided with transmission internal gear, the periphery wall of the described combined cover body corresponding with described smooth section is provided with fork slot, and the periphery wall of all combined cover bodies corresponding with described reaming section is provided with involute outer spline; One end of all gear teeth of described transmission internal gear described fork slot dorsad is equipped with the arc envelope face I formed by circular arc chamfering, and all spline tooths of described involute outer spline are equipped with towards one end of described fork slot the arc envelope face II formed by circular arc chamfering.
Further, the external diameter in described arc envelope face I reduces gradually along the described radially inner direction of combined cover body.
Further, described arc envelope face I seamlessly transits with the two side of the corresponding described gear teeth.
Further, the symmetrical line in described arc envelope face I is circular curve.
Further, tooth number Z=20 of described transmission internal gear, modulus m=2.5, and the radius of curvature of the symmetrical line in described arc envelope face I is 11mm.
Further, the external diameter in described arc envelope face II reduces gradually along the described radially outer direction of combined cover body.
Further, described arc envelope face II seamlessly transits with the two side of corresponding described spline tooth.
Further, the symmetrical line in described arc envelope face II is circular curve.
Further, tooth number Z=28 of described involute outer spline, modulus m=2.5, and the radius of curvature of the symmetrical line in described arc envelope face II is 11mm.
The beneficial effects of the utility model are:
Auxiliary transmission combined cover of the present utility model, coordinates with axle by arranging involute inner spline on the inwall of smooth section, and the slip that driving cog can be made to overlap is more steady, and the processability of involute inner spline is better; By arranging arc envelope face I on the gear teeth of transmission internal gear, when shift fork drives combined cover to engage with other gear structures, due to the existence in this arc envelope face I, even if transmission internal gear and other gear structures are touched, arc envelope face I can produce a tangent line component, other gear structures are smoothly moved along this arc envelope face I, and finally realizes the operation of engage a gear engagement; In like manner, by arranging arc envelope face II on the spline tooth of involute outer spline, when shift fork drives combined cover to engage with other spline structure engage a gears, due to the existence in this arc envelope face II, even if involute outer spline and other spline structures are touched, arc envelope face II also can produce a tangent line component, and other spline structures are smoothly moved along this arc envelope face II, and finally realizes the operation of engage a gear engagement; Therefore, output shaft of gear-box driving cog cover of the present utility model can not only slide reposefully on output shaft, and more smooth-going when engaging with output shaft driving gear engage a gear.
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 auxiliary transmission combined cover embodiment;
Fig. 2 is the A detail drawing of Fig. 1;
Fig. 3 is the C-C sectional drawing of Fig. 2;
Fig. 4 is the B detail drawing of Fig. 1;
Fig. 5 is the D-D sectional drawing of Fig. 4.
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 auxiliary transmission combined cover embodiment.The auxiliary transmission combined cover of the present embodiment, comprise combined cover body 1, the center of described combined cover body 1 is provided with central through bore 2, described central through bore 2 comprises smooth section 3 and reaming section 4, the internal diameter of described reaming section 4 is greater than the internal diameter of described smooth section 3, the inwall of described smooth section 3 is provided with involute inner spline 5, the inwall of described reaming section 4 is provided with transmission internal gear 6, the periphery wall of the described combined cover body 1 corresponding with described smooth section 3 is provided with fork slot 7, and the periphery wall of all combined cover bodies 1 corresponding with described reaming section 4 is provided with involute outer spline 8.One end of all gear teeth of described transmission internal gear 6 described fork slot dorsad is equipped with the arc envelope face I 9 formed by circular arc chamfering, and all spline tooths of described involute outer spline 8 are equipped with towards one end of described fork slot the arc envelope face II 10 formed by circular arc chamfering.
Further, the external diameter in the arc envelope face I 9 of the present embodiment reduces gradually along the described radially inner direction of combined cover body 1, and described arc envelope face I 9 seamlessly transits with the two side of the corresponding described gear teeth, can avoid further occurring bite.The symmetrical line in the arc envelope face I 9 of the present embodiment is tooth number Z=20 of circular curve, transmission internal gear 6, modulus m=2.5, and the radius of curvature R of the symmetrical line in described arc envelope face I 9
1for 11mm.
Further, the external diameter in the arc envelope face II 10 of the present embodiment reduces gradually along the described radially outer direction of combined cover body, and arc envelope face II 10 seamlessly transits with the two side of corresponding described spline tooth, can avoid bite further.The symmetrical line in the described arc envelope face II 10 of the present embodiment is circular curve, tooth number Z=28 of described involute outer spline 9, modulus m=2.5, and the radius of curvature R of the symmetrical line in described arc envelope face II 10
2for 11mm.
The combined cover body of the present embodiment is also provided with the carbonitrided case that the degree of depth is 0.65mm, can effectively strengthens surface strength and surface abrasion resistance.
The auxiliary transmission combined cover of the present embodiment, coordinates with axle by arranging involute inner spline on the inwall of smooth section 3, and the slip that driving cog can be made to overlap is more steady, and the processability of involute inner spline is better; By arranging arc envelope face I 9 on the gear teeth of transmission internal gear, when shift fork drives combined cover to engage with other gear structures, due to the existence in this arc envelope face I, even if transmission internal gear and other gear structures are touched, arc envelope face I 9 can produce a tangent line component, other gear structures are smoothly moved along this arc envelope face I, and finally realizes the operation of engage a gear engagement; In like manner, by arranging arc envelope face II 10 on the spline tooth of involute outer spline, when shift fork drives combined cover to engage with other spline structure engage a gears, due to the existence in this arc envelope face II, even if involute outer spline and other spline structures are touched, arc envelope face II also can produce a tangent line component, and other spline structures are smoothly moved along this arc envelope face II 10, and finally realizes the operation of engage a gear engagement; Therefore, output shaft of gear-box driving cog cover of the present utility model can not only slide reposefully on output shaft, and more smooth-going when engaging with output shaft driving gear engage a gear.
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 (9)
1. an auxiliary transmission combined cover, it is characterized in that: comprise combined cover body, the center of described combined cover body is provided with central through bore, described central through bore comprises smooth section and reaming section, the internal diameter of described reaming section is greater than the internal diameter of described smooth section, the inwall of described smooth section is provided with involute inner spline, the inwall of described reaming section is provided with transmission internal gear, the periphery wall of the described combined cover body corresponding with described smooth section is provided with fork slot, and the periphery wall of all combined cover bodies corresponding with described reaming section is provided with involute outer spline; One end of all gear teeth of described transmission internal gear described fork slot dorsad is equipped with the arc envelope face I formed by circular arc chamfering, and all spline tooths of described involute outer spline are equipped with towards one end of described fork slot the arc envelope face II formed by circular arc chamfering.
2. auxiliary transmission combined cover according to claim 1, is characterized in that: the external diameter in described arc envelope face I reduces gradually along the described radially inner direction of combined cover body.
3. auxiliary transmission combined cover according to claim 2, is characterized in that: described arc envelope face I seamlessly transits with the two side of the corresponding described gear teeth.
4. auxiliary transmission combined cover according to claim 3, is characterized in that: the symmetrical line in described arc envelope face I is circular curve.
5. auxiliary transmission combined cover according to claim 4, is characterized in that: tooth number Z=20 of described transmission internal gear, modulus m=2.5, and the radius of curvature of the symmetrical line in described arc envelope face I is 11mm.
6. the auxiliary transmission combined cover according to any one of claim 1-5, is characterized in that: the external diameter in described arc envelope face II reduces gradually along the described radially outer direction of combined cover body.
7. auxiliary transmission combined cover according to claim 6, is characterized in that: described arc envelope face II seamlessly transits with the two side of corresponding described spline tooth.
8. auxiliary transmission combined cover according to claim 7, is characterized in that: the symmetrical line in described arc envelope face II is circular curve.
9. auxiliary transmission combined cover according to claim 8, is characterized in that: tooth number Z=28 of described involute outer spline, modulus m=2.5, and the radius of curvature of the symmetrical line in described arc envelope face II is 11mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641362.4U CN204267646U (en) | 2014-10-31 | 2014-10-31 | Auxiliary transmission combined cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641362.4U CN204267646U (en) | 2014-10-31 | 2014-10-31 | Auxiliary transmission combined cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267646U true CN204267646U (en) | 2015-04-15 |
Family
ID=52802517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641362.4U Expired - Fee Related CN204267646U (en) | 2014-10-31 | 2014-10-31 | Auxiliary transmission combined cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591288A (en) * | 2018-06-09 | 2018-09-28 | 无锡正瑞汽车传动技术有限公司 | A kind of clutch collar of dual power drive system |
-
2014
- 2014-10-31 CN CN201420641362.4U patent/CN204267646U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108591288A (en) * | 2018-06-09 | 2018-09-28 | 无锡正瑞汽车传动技术有限公司 | A kind of clutch collar of dual power drive system |
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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: 20161031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |