CN203115026U - Novel timing sleeve chain transmission system for diesel engine - Google Patents
Novel timing sleeve chain transmission system for diesel engine Download PDFInfo
- Publication number
- CN203115026U CN203115026U CN 201220756746 CN201220756746U CN203115026U CN 203115026 U CN203115026 U CN 203115026U CN 201220756746 CN201220756746 CN 201220756746 CN 201220756746 U CN201220756746 U CN 201220756746U CN 203115026 U CN203115026 U CN 203115026U
- Authority
- CN
- China
- Prior art keywords
- oil pump
- chain
- sprocket
- transmission system
- diesel engine
- 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
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Abstract
The utility model discloses a novel timing sleeve chain transmission system for a diesel engine. The novel timing sleeve chain transmission system comprises a sleeve chain, a crankshaft sprocket, a camshaft sprocket and a fuel pump sprocket and further comprises a balance shaft gear, a fuel pump gear and a tensioning device, wherein the balance shaft gear is in external meshing with the fuel pump gear, and the tensioning device is pressed on the sleeve chain between the camshaft sprocket and the fuel pump sprocket. By means of the novel timing sleeve chain transmission system for the diesel engine, original functions can be achieved, system complexity is reduced, the structure is more compact, vibration of the chain in a transmission process is smaller, and meshing noise is lower. In addition, the novel timing sleeve chain transmission system can effectively reduce bending stress of the chain in the transmission process and increases fatigue durability of the chain.
Description
Technical field
The utility model belongs to Machine Design manufacturing and mechanical transmissioning technology field, is specifically related to a kind of timing bushing chain transmission system for diesel engine.
Background technique
The chain drive system of motor car engine is in mechanical transmission fields, be a kind ofly have mechanical, electrical, liquid, control is multidisciplinary integrated, complicated and important machine driven system, it is formed forward position research field on the basis of having crossed over the conventional mechanical drive technology, particularly under the operating mode of high speed, heavy duty, low noise and big centre distance, its transmission performance is better than toothed belt transmission, gear transmission, has become one of driving type of numerous high-grade motor car engine transmission system first-selections.
The diesel engine chain drive system adopts roller chain drives usually in the prior art, mesh impact and vibration are bigger in the transmission process, complex structure, chain suffered flexural stress in transmission process is bigger, the stationarity of transmission is relatively poor, the engagement noise is bigger, and polygon effect is obvious, causes the transmission system overall performance relatively poor.For example, the patent No. be 200710104180.8 patent disclosure a kind of " roller chain transmission device ", relate to the used roller chain drive system of a kind of motor car engine Synchronous Transmission, this system architecture complexity, and chain suffered flexural stress in transmission process is bigger, can produce bigger mesh impact power in transmission process, is accompanied by the bigger mesh vibration of generation, this not only can produce bigger noise, but also can reduce the durability of transmission system significantly.
Summary of the invention
In order to overcome the above-mentioned technical problem that the prior art field exists, the purpose of this utility model is, the novel timing bushing chain of a kind of used for diesel engine transmission system is provided, and effectively reduces mesh impact power and mesh vibration, improves the durability of transmission system.
The novel timing bushing chain of the used for diesel engine that the utility model provides transmission system, it comprises bushing chain, crankshaft sprocket, camshaft sprocket and oil pump sprocket wheel, it also comprises balance shaft gear, oil pump gear and tension device, described balance shaft gear and oil pump gear outer gearing; Described tension device is pressed on the bushing chain between camshaft sprocket and the oil pump sprocket wheel.Between described crankshaft sprocket and the camshaft sprocket, between crankshaft sprocket and the oil pump sprocket wheel, be respectively equipped with 1 fixed guide.Described oil pump gear and the transmission of oil pump sprocket coaxiality, oil pump gear is identical with the number of teeth of oil pump sprocket wheel.The preferred tensioning guide rail of described tension device, the tensioning guide rail comprises guide rail and hydraulic tensioner.Described bushing chain comprises sleeve, bearing pin, inner plate and outer plate, sleeve and bearing pin Spielpassung, inner plate and sleeve interference fit, outer plate and bearing pin interference fit.
The novel timing bushing chain of the used for diesel engine that the utility model provides transmission system, its beneficial effect is, adopt gear transmission between trunnion shaft and the machine oil pump shaft, balance shaft gear and oil pump gear outer gearing, under the situation that does not change drive characteristic, reduced the complexity of bushing chain transmission system, effectively reduce chain suffered flexural stress in transmission process, reduced the shock and vibration of chain in transmission process, prolonged the working life of chain; Tension device is set to be pressed on the bushing chain between camshaft sprocket and the oil pump sprocket wheel, transmission system is compacter, alleviate the vibration of roller chain drive system in engagement process, effectively reduced the engagement noise, improved the overall performance of roller chain drive system.
Description of drawings
Fig. 1 is an embodiment's of the utility model overall structure schematic representation;
Fig. 2 is the structural representation of prior art transmission system;
Fig. 3 is the schematic representation of balance shaft gear and oil pump gear outer gearing part;
Fig. 4 is the bushing chain structural representation;
Fig. 5 is the plan view of Fig. 3;
Mark among the figure:
1. bushing chain; 2. crankshaft sprocket; 3. camshaft sprocket; 4. oil pump sprocket wheel; 5. balance shaft gear; 6. guide rail; 7. hydraulic tensioner; 8. fixed guide; 9. oil pump gear; 10. sleeve; 11. bearing pin; 12. inner plate; 13. outer plate; 14. trunnion shaft sprocket wheel.
Embodiment
With reference to the accompanying drawings, in conjunction with an embodiment, the novel timing bushing chain of the used for diesel engine transmission system that the utility model is provided is described in detail.
Embodiment
With reference to Fig. 1, Fig. 3-Fig. 5, the novel timing bushing chain of the used for diesel engine of present embodiment transmission system, it comprises bushing chain 1, crankshaft sprocket 2, camshaft sprocket 3 and oil pump sprocket wheel 4, it also comprises balance shaft gear 5, oil pump gear 9 and tension device, described balance shaft gear 5 and oil pump gear 9 outer gearings; Described tension device is pressed on the bushing chain between camshaft sprocket 3 and the oil pump sprocket wheel 9.Between described crankshaft sprocket 2 and the camshaft sprocket 3, between crankshaft sprocket 2 and the oil pump sprocket wheel 4, be respectively equipped with 1 fixed guide 8.Described oil pump gear 9 and the 4 same shaft drive of oil pump sprocket wheel, both numbers of teeth of oil pump gear 9 and oil pump sprocket wheel 4 are identical.The preferred tensioning guide rail of described tension device, the tensioning guide rail comprises guide rail 6 and hydraulic tensioner 7.Described bushing chain 1 comprises sleeve 10, bearing pin 11, inner plate 12 and outer plate 13, sleeve 10 and bearing pin 11 Spielpassung, inner plate 12 and sleeve 10 interference fit, outer plate 13 and bearing pin 11 interference fit.
The novel timing bushing chain of used for diesel engine transmission system, power is imported from crankshaft sprocket, passes to camshaft sprocket.Between crankshaft sprocket and the camshaft sprocket, between crankshaft sprocket and the oil pump sprocket wheel, be respectively equipped with 1 fixed guide, the tensioning guide rail is pressed on the bushing chain between camshaft sprocket and the oil pump sprocket wheel, the tensioning guide rail is made up of guide rail and hydraulic tensioner, hydraulic tensioner applies a tension force by hydraulic system to guide rail, by the interaction of power, act on the bushing chain 1.2 fixed guides and 1 tensioning guide rail be the tensioning sleeve chain simultaneously, prevents that fluctuating from appearring in the transmission system operation process in bushing chain, and the guiding by guide rail can reduce the vibration of bushing chain in transmission process, alleviates the engagement noise.
Prior art as Fig. 2, adopts sprocket wheel and bushing chain engagement driving between trunnion shaft and the machine oil pump shaft, the variation of chain tension is very big near the trunnion shaft sprocket wheel 14, this just causes the impact of chain and sprocket wheel bigger, thereby increases the wearing and tearing of chain, and influences transmission accuracy and the transmission efficiency of system.
Compared with prior art, the novel timing bushing chain of used for diesel engine transmission system, oil pump sprocket wheel 4 directly links to each other with camshaft sprocket by bushing chain, the trunnion shaft sprocket wheel changes balance shaft gear into, oil pump gear and the transmission of oil pump sprocket coaxiality, the number of teeth of oil pump sprocket wheel and oil pump gear is identical.Pass through intermediate gear outer gearing transition between oil pump gear and the balance shaft gear, thereby make trunnion shaft realize rightabout rotation.
In sum, the novel timing bushing chain of used for diesel engine transmission system can not only realize original function, and reduce the complexity of system, makes structure compacter, in the transmission process vibration of chain littler, the engagement noise lower; In addition, novel bushing chain transmission system can effectively reduce chain suffered flexural stress in transmission process, increases the fatigue durability of chain.
Claims (5)
1. the novel timing bushing chain of used for diesel engine transmission system, it comprises bushing chain, crankshaft sprocket, camshaft sprocket and oil pump sprocket wheel, it is characterized in that: it also comprises balance shaft gear, oil pump gear and tension device, described balance shaft gear and oil pump gear outer gearing; Described tension device is pressed on the bushing chain between camshaft sprocket and the oil pump sprocket wheel.
2. the novel timing bushing chain of used for diesel engine according to claim 1 transmission system is characterized in that: between described crankshaft sprocket and the camshaft sprocket, between crankshaft sprocket and the oil pump sprocket wheel, be respectively equipped with 1 fixed guide.
3. the novel timing bushing chain of used for diesel engine according to claim 1 transmission system, it is characterized in that: described oil pump gear and the transmission of oil pump sprocket coaxiality, oil pump gear is identical with the number of teeth of oil pump sprocket wheel.
4. the novel timing bushing chain of used for diesel engine according to claim 1 transmission system, it is characterized in that: described tension device is the tensioning guide rail, and the tensioning guide rail comprises guide rail and hydraulic tensioner.
5. the novel timing bushing chain of used for diesel engine according to claim 1 transmission system, it is characterized in that: described bushing chain comprises sleeve, bearing pin, inner plate and outer plate, sleeve and bearing pin Spielpassung, inner plate and sleeve interference fit, outer plate and bearing pin interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220756746 CN203115026U (en) | 2012-12-28 | 2012-12-28 | Novel timing sleeve chain transmission system for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220756746 CN203115026U (en) | 2012-12-28 | 2012-12-28 | Novel timing sleeve chain transmission system for diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203115026U true CN203115026U (en) | 2013-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220756746 Expired - Fee Related CN203115026U (en) | 2012-12-28 | 2012-12-28 | Novel timing sleeve chain transmission system for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203115026U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883688A (en) * | 2014-03-09 | 2014-06-25 | 李慧杰 | External meshing wheel-rail chain transmission device |
| CN108397519A (en) * | 2017-02-06 | 2018-08-14 | 株式会社椿本链条 | Chain and chain gearing |
| CN116989104A (en) * | 2023-04-25 | 2023-11-03 | 青岛征和工业股份有限公司 | Novel chain transmission system |
-
2012
- 2012-12-28 CN CN 201220756746 patent/CN203115026U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883688A (en) * | 2014-03-09 | 2014-06-25 | 李慧杰 | External meshing wheel-rail chain transmission device |
| CN108397519A (en) * | 2017-02-06 | 2018-08-14 | 株式会社椿本链条 | Chain and chain gearing |
| CN116989104A (en) * | 2023-04-25 | 2023-11-03 | 青岛征和工业股份有限公司 | Novel chain transmission 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: 20130807 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |