CN202946641U - Road roller internal gear - Google Patents
Road roller internal gear Download PDFInfo
- Publication number
- CN202946641U CN202946641U CN 201220611378 CN201220611378U CN202946641U CN 202946641 U CN202946641 U CN 202946641U CN 201220611378 CN201220611378 CN 201220611378 CN 201220611378 U CN201220611378 U CN 201220611378U CN 202946641 U CN202946641 U CN 202946641U
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- internal gear
- road roller
- gear
- involute
- key body
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Abstract
The utility model relates to an internal gear, in particular to a road roller internal gear used for road roller hub reduction gears. The road roller internal gear comprises a gear body. An assembly groove is arranged in the gear body, an assembly key body is arranged on the side wall of the gear body, a splined hole communicated with the assembly groove is formed in the assembly key body, double-module involute internal gears which are evenly distributed are arranged on the inner wall of the assembly groove, and double-diameter-pitch involute internal splines which are evenly distributed are arranged on the inner wall of the splined hole. The road roller internal gear is compact in structure and high in shock strength and bending strength, reliability is improved, service life is prolonged, the working performance requirements of road roller low speed and heavy load can be met, and use requirements of users are also well met.
Description
Technical field
The utility model patent relates to a kind of internal gear, relates in particular to a kind of road roller internal gear, is used for the road roller wheel side reducer.
Background technique
At present existing road roller wheel side reducer generally adopts the involute gear of single modulus with internal gear, its standard pitch circle transverse tooth thickness is less, impact strength, flexural strength are lower, be difficult to adapt to the service behaviour requirement of road roller low-speed heave-load, its decreasing failure rate is high, working life is short, can not reach user's usage requirement.
Chinese patent 201220030055.3 discloses a kind of internal gear mechanism, particularly a kind of internal gear mechanism for wheel-side reducer for loader.Comprise wheel hub and planetary wheel carrier, described wheel hub and planetary wheel carrier fix, be provided with semiaxis in described wheel hub, described half outer shaft sleeve has supporting axle, on described supporting axle, cover has internal gear, and described internal gear is locked mutually by round nut, is provided with planet pin in described planetary wheel carrier, on described planet pin, cover has planetary pinion, and described planetary pinion is meshed with internal gear.This structure is conventional construction, causes using effect undesirable.
Summary of the invention
The utility model is mainly to solve the deficiencies in the prior art, provides a kind of simple in structure, and
Overcome the road roller internal gear of prior art internal gear bearing capacity, impact strength, flexural strength, shortcoming that reliability is low.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of road roller internal gear, comprise gear mass, be provided with fitting recess in described gear mass, the sidewall of described gear mass is provided with the fitted key body, be provided with the splined hole that is connected with fitting recess in described fitted key body, the inwall of described fitting recess is provided with equally distributed double modulus involute internal gear, and the inwall of described splined hole is provided with equally distributed pair of diametral pitch involute inner spline.
As preferably, the afterbody of described double modulus involute internal gear is provided with the assembling ring recess of inner concavity, and the outer side wall of described gear mass is provided with equally distributed positioning hole, and described positioning hole is positioned at the periphery of fitted key body.
As preferably, the number of teeth of described double modulus involute internal gear is 49, and the pressure angle of double modulus involute internal gear is 20 degree; The number of teeth of described pair of diametral pitch involute inner spline is 61, and the pressure angle of two diametral pitch involute inner splines is 30 degree.
As preferably, the afterbody outer ring of described fitted key body is provided with groove, described fitted key body and the integrated distribution of gear mass.
Therefore, a kind of road roller internal gear of the present utility model, compact structure, excellent in cushion effect, flexural strength is high, and reliability is improved, extended working life, can adapt to the service behaviour requirement of road roller low-speed heave-load, also satisfied well user's usage requirement.
Description of drawings
Fig. 1 is sectional structure schematic diagram of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of road roller internal gear, comprise gear mass 1, be provided with fitting recess 2 in described gear mass 1, the sidewall of described gear mass 1 is provided with fitted key body 3, be provided with the splined hole 4 that is connected with fitting recess 2 in described fitted key body 3, the inwall of described fitting recess 2 is provided with equally distributed double modulus involute internal gear 5, and the inwall of described splined hole 4 is provided with equally distributed pair of diametral pitch involute inner spline 6.The afterbody of described double modulus involute internal gear 5 is provided with the assembling ring recess 7 of inner concavity, and the outer side wall of described gear mass 1 is provided with equally distributed positioning hole 8, and described positioning hole 8 is positioned at the periphery of fitted key body 3.The number of teeth of described double modulus involute internal gear 5 is 49, and the pressure angle of double modulus involute internal gear 5 is 20 degree; The number of teeth of described pair of diametral pitch involute inner spline 6 is 61, and the pressure angle of two diametral pitch involute inner splines 6 is 30 degree.The afterbody outer ring of described fitted key body 3 is provided with groove 9, described fitted key body 3 and the integrated distribution of gear mass 1.
Claims (4)
1. road roller internal gear, it is characterized in that: comprise gear mass (1), be provided with fitting recess (2) in described gear mass (1), the sidewall of described gear mass (1) is provided with fitted key body (3), be provided with the splined hole (4) that is connected with fitting recess (2) in described fitted key body (3), the inwall of described fitting recess (2) is provided with equally distributed double modulus involute internal gear (5), and the inwall of described splined hole (4) is provided with equally distributed pair of diametral pitch involute inner spline (6).
2. a kind of road roller internal gear according to claim 1, it is characterized in that: the afterbody of described double modulus involute internal gear (5) is provided with the assembling ring recess (7) of inner concavity, the outer side wall of described gear mass (1) is provided with equally distributed positioning hole (8), and described positioning hole (8) is positioned at the periphery of fitted key body (3).
3. a kind of road roller internal gear according to claim 1 and 2, it is characterized in that: the number of teeth of described double modulus involute internal gear (5) is 49, the pressure angle of double modulus involute internal gear (5) is 20 degree; The number of teeth of described pair of diametral pitch involute inner spline (6) is 61, and the pressure angle of two diametral pitch involute inner splines (6) is 30 degree.
4. a kind of road roller internal gear according to claim 1 and 2 is characterized in that: the afterbody outer ring of described fitted key body (3) is provided with groove (9), described fitted key body (3) and the integrated distribution of gear mass (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611378 CN202946641U (en) | 2012-11-19 | 2012-11-19 | Road roller internal gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220611378 CN202946641U (en) | 2012-11-19 | 2012-11-19 | Road roller internal gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946641U true CN202946641U (en) | 2013-05-22 |
Family
ID=48422345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220611378 Expired - Fee Related CN202946641U (en) | 2012-11-19 | 2012-11-19 | Road roller internal gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972093A (en) * | 2016-07-27 | 2016-09-28 | 马鞍山市安耐特回转支承有限公司 | Worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth |
-
2012
- 2012-11-19 CN CN 201220611378 patent/CN202946641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972093A (en) * | 2016-07-27 | 2016-09-28 | 马鞍山市安耐特回转支承有限公司 | Worm wheel type slewing bearing capable of achieving opposite rotational motion of internal and external teeth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311256 Xinxia Road, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Zongxing Technology Co., Ltd. Address before: 311256 Xinxia Road, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Zongxing Gear Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |