CN201858333U - Idle gear for diesel engines - Google Patents
Idle gear for diesel engines Download PDFInfo
- Publication number
- CN201858333U CN201858333U CN2010205958067U CN201020595806U CN201858333U CN 201858333 U CN201858333 U CN 201858333U CN 2010205958067 U CN2010205958067 U CN 2010205958067U CN 201020595806 U CN201020595806 U CN 201020595806U CN 201858333 U CN201858333 U CN 201858333U
- Authority
- CN
- China
- Prior art keywords
- gear
- withdrawal groove
- tool withdrawal
- idle gear
- utility
- 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 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010862 gear shaping Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
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- Gears, Cams (AREA)
Abstract
The utility model discloses an idle gear for diesel engines. A gear body has an integral structure; a tool withdrawal groove is arranged in the middle of the outer circumference of the gear body; an inclined gear is arranged on an excircle at one side of the tool withdrawal groove and a straight gear is arranged on an excircle at the other side of the tool withdrawal groove; the outer diameter difference between the inclined gear and the straight gear is not more than 2mm; and a bushing is pressed in an inner hole of the gear body in a matching manner. The idle gear of the utility model has the integral structure and the same positioning is adopted in the machining process so that the circular runout of the gear is ensured, the transmission precision is improved, the transmission noise of the gear is reduced, the manufacture cost is reduced, the production efficiency is improved and the potential safety hazard that riveting pins of existing idle gear members fall off to cause damage to the engines is eliminated. As the outer diameter difference between the inclined gear and the straight gear is not more than 2mm, the stability of the transmission is ensured and the noise is reduced. The idle gear of the utility model can be widely applied to diesel engines.
Description
Technical field
The utility model relates to a kind of diesel engine idle gear.
Background technique
As shown in Figure 1, present diesel engine idle gear is the component that is pressed and form by riveting pin 3 by helical gear 1, spur gear 2, has been press-fitted lining 4 then in endoporus.The processing technology complexity of this idle gear component, process flow is long, and the process equipment of use is many, the cost height, efficient is low.Also existing a shortcoming that is difficult to overcome is exactly: one, can't guarantee the circular runout of gear; Two, riveting pin has the not tight phenomenon that presses, and seriously influences the transmission accuracy of motor and produces noise, and exist riveting pin and break away from and cause the possibility of damaging motor.
Summary of the invention
In order to guarantee the circular runout of gear, improve transmission accuracy, reduce noise, the utility model proposes a kind of diesel engine idle gear.
For this reason, the technical solution of the utility model is: a kind of diesel engine idle gear, it is characterized in that: the gear body is an overall structure, excircle middle part at the gear body is provided with tool withdrawal groove, on the tool withdrawal groove cylindrical on one side is helical gear, be spur gear on the cylindrical of tool withdrawal groove another side, the outer diameter difference of helical gear and spur gear is not more than 2 millimeters; Be press-fitted lining in the endoporus of gear body.
Beneficial effect: the utility model is an overall structure, adopt same accurate positioning in the course of working, guaranteed the circular runout of gear, improved transmission accuracy, reduce gear transmission noises, reduced multiple working procedure, reduced manufacture cost, improved manufacturing efficiency, the riveting pin of having eliminated existing idle gear component deviates to cause the potential safety hazard of motor damage.The outer diameter difference of helical gear and spur gear is not more than 2 millimeters, has guaranteed the stressed of gear body, thereby has guaranteed the stationarity of transmission, is beneficial to the reduction noise.This practicability can be widely used on the diesel engine.
Description of drawings
Fig. 1 is the structural representation of existing idle gear component.
Fig. 2 is a structural representation of the present utility model.
Embodiment
Below in conjunction with Fig. 2, it is as follows to further describe the utility model: a kind of diesel engine idle gear, gear body 5 is an overall structure, excircle middle part at gear body 5 is provided with tool withdrawal groove 9, on tool withdrawal groove 9 cylindrical on one side is helical gear 7, be spur gear 8 on the cylindrical of tool withdrawal groove another side, helical gear 7 is not more than 2 millimeters with the outer diameter difference of spur gear 8; Be press-fitted lining 6 in the endoporus of gear body 5.
As shown in Figure 2, the width of helical gear 7 equates with the width of spur gear 8, can further guarantee the stationarity of transmission.
The width of tool withdrawal groove 9 is generally 3～5 millimeters.
---tooth base processing---cog machining (gear shaping and crowded tooth)---packing that nitriding treatment---is press-fitted lining---that the processing technology of diesel engine idle gear as shown in Figure 2 is: the tooth base is modified.
This practicability can be widely used on the diesel engine, as the diesel engine of the 4DA1-2B1 type and the 4DA1-2B type of Jianghuai Vehicle Group Co., Ltd., Anhui.
Claims (3)
1. diesel engine idle gear, it is characterized in that: the gear body is an overall structure, excircle middle part at the gear body is provided with tool withdrawal groove, on the tool withdrawal groove cylindrical on one side is helical gear, be spur gear on the cylindrical of tool withdrawal groove another side, the outer diameter difference of helical gear and spur gear is not more than 2 millimeters; Be press-fitted lining in the endoporus of gear body.
2. a kind of diesel engine idle gear according to claim 1 is characterized in that: helical gear width equates with the width of spur gear.
3. a kind of diesel engine idle gear according to claim 1 and 2 is characterized in that: the width of tool withdrawal groove is 3～5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205958067U CN201858333U (en) | 2010-11-05 | 2010-11-05 | Idle gear for diesel engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205958067U CN201858333U (en) | 2010-11-05 | 2010-11-05 | Idle gear for diesel engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858333U true CN201858333U (en) | 2011-06-08 |
Family
ID=44104140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205958067U Expired - Fee Related CN201858333U (en) | 2010-11-05 | 2010-11-05 | Idle gear for diesel engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858333U (en) |
-
2010
- 2010-11-05 CN CN2010205958067U patent/CN201858333U/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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SHIYAN FUZE INDUSTRY AND TRADE CO., LTD. Free format text: FORMER OWNER: SHIYAN HUIDING INDUSTRY + TRADE CO., LTD. Effective date: 20140403 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 442011 SHIYAN, HUBEI PROVINCE TO: 442500 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140403 Address after: 442500 David Industrial Park, willow town, Yunxian, Hubei, Shiyan Patentee after: Shiyan Fuze Industry and Trade Co., Ltd. Address before: 442011 Shiyan City, Hubei province Zhangwan District Hanjiang Road No. 53 Patentee before: Shiyan Huiding Industry & Trade Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |