CN204267665U - High to low gear sliding gear - Google Patents
High to low gear sliding gear Download PDFInfo
- Publication number
- CN204267665U CN204267665U CN201420641667.5U CN201420641667U CN204267665U CN 204267665 U CN204267665 U CN 204267665U CN 201420641667 U CN201420641667 U CN 201420641667U CN 204267665 U CN204267665 U CN 204267665U
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- CN
- China
- Prior art keywords
- gear
- low
- internal
- envelope face
- arc envelope
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of high to low gear sliding gear, comprise gear, the center of described gear is provided with central through bore, described central through bore comprises the cooperation section that is positioned at one end and is positioned at the other end and internal diameter is greater than the reaming section coordinating section, be provided with internal spline in described cooperation section, in described reaming section, be provided with internal gear; Described gear is provided with external gear away from the periphery wall of one end of described reaming section, and the periphery wall of gear is also provided with fork slot; One end of all gear teeth of described internal gear all gear teeth described fork slot dorsad of one end of described internal spline and described external gear dorsad is equipped with the arc envelope face formed by circular arc chamfering.By arranging arc envelope face, high to low gear sliding gear of the present utility model, can make gearbox more smooth-going when putting into gear engagement.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, is specifically related to a kind of high to low gear sliding gear for gearbox.
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.
The high to low gear sliding gear of gearbox is slidably matched and is sleeved on gearbox gear axle, stirs high to low gear sliding gear slide on gear shaft by shift fork, puts into gear respectively engage, to realize the output of different gear with high gear gear and low gear gear.Although existing high to low gear sliding gear can meet usage requirement to a certain extent, but with high gear gear and low gear gear put into gear engage time, often there is the phenomenon of colliding with bite, cause the gear shift operation irregularity of gearbox, and also can 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 high to low gear sliding gear, and gearbox can be made more smooth-going when putting into gear engagement.
For achieving the above object, the utility model provides following technological scheme:
A kind of high to low gear sliding gear, comprise gear, the center of described gear is provided with central through bore, and described central through bore comprises the cooperation section that is positioned at one end and is positioned at the other end and internal diameter is greater than the reaming section coordinating section, be provided with internal spline in described cooperation section, in described reaming section, be provided with internal gear; Described gear is provided with external gear away from the periphery wall of one end of described reaming section, and the periphery wall of gear is also provided with fork slot; One end of all gear teeth of described internal gear all gear teeth described fork slot dorsad of one end of described internal spline and described external gear dorsad is equipped with the arc envelope face formed by circular arc chamfering.
Further, described fork slot is arranged on the periphery wall of the described gear corresponding with described reaming section.
Further, described external gear is arranged on the periphery wall of the described gear corresponding with described cooperation section.
Further, described internal spline is involute inner spline.
Further, the external diameter being arranged on the arc envelope face on the gear teeth of described internal gear increases gradually along the radially outer direction of described gear; The external diameter being arranged on the arc envelope face on the gear teeth of described external gear reduces gradually along the radially outer direction of described gear.
Further, seamlessly transit between described arc envelope face with the bi-side of the corresponding described gear teeth.
Further, the symmetrical line in described arc envelope face is camber line.
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.
The beneficial effects of the utility model are:
High to low gear sliding gear of the present utility model, by arranging internal gear respectively in the central through bore of gear one end, the other end periphery wall arranges external gear, when driving high to low gear sliding gear to slide by the shift fork coordinated with fork slot, can put into gear with high gear gear and low gear gear easily and engage, realize the object that gearbox different rotating speeds exports, by one end of the internal spline dorsad of all gear teeth at internal gear, and one end of all gear teeth of external gear fork slot dorsad arranges arc envelope face, when internal gear or external gear and high gear gear or low gear gear put into gear engage time, due to the existence in this arc envelope face, even if touch between the gear teeth of the gear teeth of internal gear or external gear and high gear gear or low gear gear, arc envelope face also can produce a tangent line component, make the gear teeth of high to low gear gear along this smooth-going movement in arc envelope face, the operation of the engagement and final realization is put into 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 high to low gear sliding 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 high to low gear sliding gear embodiment.The high to low gear sliding gear of the present embodiment, comprise gear 1, the center of described gear 1 is provided with central through bore 2, described central through bore 2 comprises the cooperation section 2a that is positioned at one end and is positioned at the other end and internal diameter is greater than the reaming section 2b coordinating section 2a, internal spline 3 is provided with in described cooperation section 2a, be provided with internal gear 4 in described reaming section 2b, the internal spline 3 of the present embodiment is involute inner spline, slides more steady.Described gear 1 is provided with external gear 5 away from the periphery wall of one end of described reaming section 2b, and the periphery wall of gear 1 is also provided with fork slot 6.The fork slot 6 of the present embodiment is arranged on the periphery wall of the described gear 1 corresponding with described reaming section 2b, and the external gear 5 of the present embodiment is arranged on the periphery wall of the described gear 1 corresponding with described cooperation section 2a.One end of all gear teeth of described internal gear 4 all gear teeth described fork slot 6 dorsad of one end of described internal spline 3 and described external gear 5 dorsad is equipped with the arc envelope face 7 formed by circular arc chamfering.
Further, the external diameter being arranged on the arc envelope face 7 on the gear teeth of described internal gear 4 increases gradually along the described radially outer direction of gear 1; The external diameter being arranged on the arc envelope face 7 on the gear teeth of described external gear 5 reduces gradually along the described radially outer direction of gear 1, and seamlessly transit between arc envelope face 7 with the bi-side of the corresponding described gear teeth, can avoid bite further, making to put into gear, it is more steady to engage.The symmetrical line in the arc envelope face 7 of the present embodiment is camber line, and the radius of curvature R of the symmetrical line in arc envelope face 7 is 14mm, can make internal gear 4 or external gear 5 can better and high gear gear or low gear gears meshing.In the arc envelope face 7 of the present embodiment, 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 modulus m=2 of the involute inner spline of the present embodiment, tooth number Z=16; The modulus m=3 of internal gear, tooth number Z=17; The modulus m=3 of external gear, tooth number Z=36, and carburizing and quenching layer gear being also provided with the degree of depth is 0.8mm, effectively can strengthen surface hardness and the wear-resisting property of gear.
The high to low gear sliding gear of the present embodiment, by arranging internal gear respectively in the central through bore of gear one end, the other end periphery wall arranges external gear, when driving high to low gear sliding gear to slide by the shift fork coordinated with fork slot, can put into gear with high gear gear and low gear gear easily and engage, realize the object that gearbox different rotating speeds exports, by one end of the internal spline dorsad of all gear teeth at internal gear, and one end of all gear teeth of external gear fork slot dorsad arranges arc envelope face, when internal gear or external gear and high gear gear or low gear gear put into gear engage time, due to the existence in this arc envelope face, even if touch between the gear teeth of the gear teeth of internal gear or external gear and high gear gear or low gear gear, arc envelope face also can produce a tangent line component, make the gear teeth of high to low gear gear along this smooth-going movement in arc envelope face, the operation of the engagement and final realization is put into 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 (9)
1. a high to low gear sliding gear, it is characterized in that: comprise gear, the center of described gear is provided with central through bore, described central through bore comprises the cooperation section that is positioned at one end and is positioned at the other end and internal diameter is greater than the reaming section coordinating section, be provided with internal spline in described cooperation section, in described reaming section, be provided with internal gear; Described gear is provided with external gear away from the periphery wall of one end of described reaming section, and the periphery wall of gear is also provided with fork slot; One end of all gear teeth of described internal gear all gear teeth described fork slot dorsad of one end of described internal spline and described external gear dorsad is equipped with the arc envelope face formed by circular arc chamfering.
2. high to low gear sliding gear according to claim 1, is characterized in that: described fork slot is arranged on the periphery wall of the described gear corresponding with described reaming section.
3. high to low gear sliding gear according to claim 1, is characterized in that: described external gear is arranged on the periphery wall of the described gear corresponding with described cooperation section.
4. high to low gear sliding gear according to claim 1, is characterized in that: described internal spline is involute inner spline.
5. the high to low gear sliding gear according to any one of claim 1-4, is characterized in that: the external diameter being arranged on the arc envelope face on the gear teeth of described internal gear increases gradually along the radially outer direction of described gear; The external diameter being arranged on the arc envelope face on the gear teeth of described external gear reduces gradually along the radially outer direction of described gear.
6. high to low gear sliding gear according to claim 5, is characterized in that: seamlessly transit between described arc envelope face with the bi-side of the corresponding described gear teeth.
7. high to low gear sliding gear according to claim 6, is characterized in that: the symmetrical line in described arc envelope face is camber line.
8. high to low gear sliding gear according to claim 7, is characterized in that: the radius of curvature of the symmetrical line in described arc envelope face is 14mm.
9. high to low gear sliding gear according to claim 5, 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 |
|---|---|---|---|
| CN201420641667.5U CN204267665U (en) | 2014-10-31 | 2014-10-31 | High to low gear sliding gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420641667.5U CN204267665U (en) | 2014-10-31 | 2014-10-31 | High to low gear sliding gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267665U true CN204267665U (en) | 2015-04-15 |
Family
ID=52802536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420641667.5U Expired - Fee Related CN204267665U (en) | 2014-10-31 | 2014-10-31 | High to low gear sliding gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267665U (en) |
-
2014
- 2014-10-31 CN CN201420641667.5U patent/CN204267665U/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: 20150415 Termination date: 20161031 |