CN202812077U - Crankshaft gear structure - Google Patents
Crankshaft gear structure Download PDFInfo
- Publication number
- CN202812077U CN202812077U CN 201220356161 CN201220356161U CN202812077U CN 202812077 U CN202812077 U CN 202812077U CN 201220356161 CN201220356161 CN 201220356161 CN 201220356161 U CN201220356161 U CN 201220356161U CN 202812077 U CN202812077 U CN 202812077U
- Authority
- CN
- China
- Prior art keywords
- gear
- hole
- gear disc
- holes
- disc surface
- 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
Landscapes
- Gears, Cams (AREA)
Abstract
The utility model discloses a crankshaft gear structure. The crankshaft gear structure comprises a gear disc, a plurality of gear teeth are arranged on the circumferential edge of the gear disc, a through hole is arranged in the middle of the gear disc, a plurality of positioning holes are arranged on the front gear disc surface and the back gear disc surface surrounding the though hole, a plurality of stepped through holes are reserved on the gear disc on the periphery of the through hole, the positioning holes and the stepped through holes are mutually spaced and radially distributed on the periphery of the through hole, and annular grooves are respectively arranged on the front gear disc surface and the back gear disc surface surrounding the positioning holes and the stepped holes. The crankshaft gear structure is reasonable in structure. Via the stepped through holes and the annular grooves on the front gear disc surface and the back gear disc surface, weight of a gear can be lowered, vibration generated during transmission of the gear is reduced, and stability performance of transmission is improved. Via the positioning holes on the front gear disc surface and the back gear disc surface, dislocation, caused by vibration, between the gear and a crankshaft is avoided, and normal working is guaranteed.
Description
Technical field
The utility model relates to a kind of crankshaft gear structure.
Background technique
Bent axle is the main rotary gadget of engine, load onto connecting rod after, can accept connecting rod about (back and forth) motion become circulation (rotation) and move.Important parts on the motor.
Gear and the bent axle composition drive mechanism that is assembled together, existing gear vibrates larger in the course of the work, produces a large amount of noises when causing work, thereby has influence on the normal operation of motor.
The model utility content
The purpose of this utility model provides a kind of crankshaft gear structure, reduces the vibration that gear produces in transmission process, to improve the stability of transmission.
The technical solution of the utility model is as follows:
A kind of crankshaft gear structure, include wheel disc, edge, surrounding around wheel disc has respectively a plurality of gear teeth, it is characterized in that: the middle part of described wheel disc is provided with through hole, front and back around through hole wheel disc on every side is respectively equipped with a plurality of positioning holes, be respectively equipped with a plurality of step-like through holes on the wheel disc around the through hole, described a plurality of positioning holes and a plurality of step-like through hole space and be distributed in radially through hole around; Front and back around a plurality of positioning holes and a plurality of step-like wheel discs on every side is respectively equipped with circular groove.
Described crankshaft gear structure is characterized in that: have live axle from described through hole, to pass and with the through hole interference fit.
The beneficial effects of the utility model:
The utility model is rational in infrastructure, and the circular groove of a plurality of step-like through hole on the wheel disc and the front and back of wheel disc has alleviated the weight of gear, has reduced the vibration that gear produces in transmission process, has improved the stability of transmission; A plurality of positioning holes of the front and back of wheel disc have prevented because vibration so that misplace between gear and the bent axle, has guaranteed normal operation.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Referring to Fig. 1, a kind of crankshaft gear structure, include wheel disc 1, edge, surrounding around wheel disc 1 has respectively a plurality of gear teeth 2, the middle part of wheel disc 1 is provided with through hole, the front and back of the wheel disc 1 around the through hole 3 is respectively equipped with a plurality of positioning holes 4, is respectively equipped with a plurality of step-like through holes 5 on the wheel disc 1 around the through hole 3, a plurality of positioning holes 4 and a plurality of step-like through holes 5 spaces and be distributed in radially through hole 3 around; Front and back around a plurality of positioning holes 4 and a plurality of step-like 5 wheel disc 1 on every side is respectively equipped with circular groove 6.
In the utility model, live axle is arranged, namely an end of bent axle from through hole 3, pass and with through hole 3 interference fit.
Claims (2)
1. crankshaft gear structure, include wheel disc, edge, surrounding around wheel disc has respectively a plurality of gear teeth, it is characterized in that: the middle part of described wheel disc is provided with through hole, front and back around through hole wheel disc on every side is respectively equipped with a plurality of positioning holes, be respectively equipped with a plurality of step-like through holes on the wheel disc around the through hole, described a plurality of positioning holes and a plurality of step-like through hole space and be distributed in radially through hole around; Front and back around a plurality of positioning holes and a plurality of step-like wheel discs on every side is respectively equipped with circular groove.
2. crankshaft gear structure according to claim 1 is characterized in that: have live axle from described through hole, to pass and with the through hole interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356161 CN202812077U (en) | 2012-07-23 | 2012-07-23 | Crankshaft gear structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220356161 CN202812077U (en) | 2012-07-23 | 2012-07-23 | Crankshaft gear structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202812077U true CN202812077U (en) | 2013-03-20 |
Family
ID=47870950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220356161 Expired - Fee Related CN202812077U (en) | 2012-07-23 | 2012-07-23 | Crankshaft gear structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202812077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148196A (en) * | 2013-03-21 | 2013-06-12 | 江苏保捷锻压有限公司 | Impact-resistant gear |
| CN105909762A (en) * | 2016-05-17 | 2016-08-31 | 苏州威富达精密机械制造有限公司 | Gearwheel for transmission of crane |
-
2012
- 2012-07-23 CN CN 201220356161 patent/CN202812077U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148196A (en) * | 2013-03-21 | 2013-06-12 | 江苏保捷锻压有限公司 | Impact-resistant gear |
| CN105909762A (en) * | 2016-05-17 | 2016-08-31 | 苏州威富达精密机械制造有限公司 | Gearwheel for transmission of crane |
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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: 20130320 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |