CN202493339U - Chain transmission system for use in engine - Google Patents
Chain transmission system for use in engine Download PDFInfo
- Publication number
- CN202493339U CN202493339U CN2012200799383U CN201220079938U CN202493339U CN 202493339 U CN202493339 U CN 202493339U CN 2012200799383 U CN2012200799383 U CN 2012200799383U CN 201220079938 U CN201220079938 U CN 201220079938U CN 202493339 U CN202493339 U CN 202493339U
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- CN
- China
- Prior art keywords
- sprocket
- chain
- crankshaft
- camshaft
- guide rail
- 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 chain transmission system for use in an engine. The chain transmission system comprises two crankshaft chain wheels, two camshaft chain wheels, a high pressure pump chain wheel, two timing chains, a guide track and a tensioner, wherein the two crankshaft chain wheels are arranged axially in parallel; the two camshaft chain wheels are arranged on the left and right sides of the crankshaft chain wheels respectively; the four chain wheels are arranged linearly; the high pressure pump chain wheel is arranged at a position slightly left above the four chain wheels arranged linearly; one timing chain surrounds on the crankshaft chain wheels, the left camshaft chain wheel and the high pressure pump chain wheel; the other timing chain surrounds on the crankshaft chain wheels and the right camshaft chain wheel; and the guide track is arranged on the outer sides of the timing chains among the chain wheels. According to the transmission system, the timing chain is compact in transmission structure, stable in transmission, small in noise and long in service life; and the overall performance of a linear engine is improved.
Description
Technical field
The utility model belongs to the engine timing transmission system, is specifically related to a kind of engine timing chain drive system.
Background technique
In motors such as automobile (Dual Over Head Camshaft) working procedure; Air inlet, compression, blast, four processes of exhaust constantly take place in cylinder; And; All will match with the motion state and the position of piston the opportunity of each step, air inlet and exhaust and piston are gone up and down coordinate each other, and the phase angle difference of air intake-exhaust is certain.Correct time, transmission system was played the part of the effect of " bridge " in the motor the inside; Under the drive of bent axle, give camshaft with strength transmission; Make the inlet and outlet door of motor open in due course or close, guarantee that the cylinder of motor can normally air-breathing and exhaust.
At present the timing system of straight line type motor mostly adopts the Toothed Belts Gearing in correct time, causes problems such as bulky heaviness of engine timing system and working life is low, has restricted the raising of motor complete machine performance.How to improve the performance of timing chain transmission system and become the technical problem that this field urgent need will solve working life.
Summary of the invention
In order to overcome the problems referred to above that the existing technology field exists, the purpose of the utility model is, provides a kind of motivation to use chain drive system, and the solution straight line type engine timing transmission system life-span is low, has restricted the problem that the motor overall performance improves.
The motor that the utility model provides is used chain drive system; It comprises two crankshaft sprockets, two camshaft sprockets, high-pressure service pump sprocket wheel, two timing chains, guide rail, stretcher; Said two crankshaft sprockets axially are arranged side by side, and two camshaft sprockets are separately positioned on the and arranged on left and right sides of crankshaft sprocket, four linearly type arrangements of sprocket wheel; The high-pressure service pump sprocket wheel is arranged on four positions of taking back in the sprocket wheel top that straight line type is arranged; Article one, timing chain is centered around on described crankshaft sprocket, left camshaft sprocket, the high-pressure service pump sprocket wheel, and another timing chain is centered around on described crankshaft sprocket, the right camshaft sprocket, and guide rail is arranged on the timing chain outside between the sprocket wheel.Said guide rail comprises fixed guide, tensioning guide rail, and said tensioning guide rail one end fixedly installs, and the other end connects stretcher.
The said timing chain that is centered around crankshaft sprocket, left camshaft sprocket, high-pressure service pump sprocket wheel; Be provided with a pair of fixed guide and a tensioning guide rail; A pair of fixed guide is separately positioned on the timing chain outside at high-pressure service pump sprocket wheel two ends, and the tensioning guide rail is arranged on the timing chain outside between crankshaft sprocket and left camshaft sprocket.
The said timing chain that is centered around crankshaft sprocket, right camshaft sprocket is provided with a fixed guide and a tensioning guide rail, is separately positioned on the timing chain outside at right camshaft sprocket two ends.
The motor that the utility model provides is used chain drive system; Its beneficial effect is, under the effect of fixed guide, tensioning guide rail and stretcher, makes timing chain drive mechanism compactness, stable drive, noise little; And high life has improved the complete machine performance of straight line type motor.
Description of drawings
Fig. 1 is the utility model embodiment's an overall structure schematic representation.
Mark among the figure:
1. crankshaft sprocket; 2. timing chain I; 3. tensioning guide rail I; 4. stretcher I; 5. left camshaft sprocket; 6. fixed guide I; 7. high-pressure service pump sprocket wheel; 8. fixed guide II; 9. tensioning guide rail II; 10. stretcher II; 11. right camshaft sprocket; 12. fixed guide III; 13. timing chain II.
Embodiment
With reference to the accompanying drawings,, the motor that the utility model provides is used chain drive system, carry out detailed explanation in conjunction with embodiment.
Embodiment
With reference to Fig. 1; The motor of present embodiment is used chain drive system; It comprises two crankshaft sprockets 1, two camshaft sprockets, high-pressure service pump sprocket wheel 7, timing chain, guide rail, stretcher; Said two crankshaft sprockets 1 axially are arranged side by side, and two camshaft sprockets are separately positioned on the and arranged on left and right sides of crankshaft sprocket 1, four linearly type arrangements of sprocket wheel; High-pressure service pump sprocket wheel 7 is arranged on four positions of taking back in the sprocket wheel top that straight line type is arranged; Timing chain I2 is centered around on described crankshaft sprocket 1, left camshaft sprocket 5, the high-pressure service pump sprocket wheel 7, and timing chain II 2 is centered around on described crankshaft sprocket 1, the right camshaft sprocket 11, and guide rail is arranged on timing chain I 2, timing chain II 2 outsides between the sprocket wheel.Said guide rail comprises fixed guide, tensioning guide rail, and said tensioning guide rail one end fixedly installs, and the other end connects stretcher.
The said timing chain I 2 that is centered around crankshaft sprocket 1, left camshaft sprocket 5, high-pressure service pump sprocket wheel 7; Be provided with fixed guide I 6, fixed guide II 8, tensioning guide rail I 3; Fixed guide I 6, fixed guide II 8 are separately positioned on timing chain I 2 outsides at high-pressure service pump sprocket wheel 7 two ends, and tensioning guide rail I 3 is arranged on crankshaft sprocket 1 and in timing chain I 2 outsides of 5 of camshaft sprockets.
The said timing chain II13 that is centered around crankshaft sprocket 1, left camshaft sprocket 11 is provided with a fixed guide III 12 and a tensioning guide rail II 9, is separately positioned on timing chain II 13 outsides at right camshaft sprocket 11 two ends.
In the straight line type engine working process; Crankshaft sprocket 1 rotates along clockwise direction; Drive left camshaft sprocket 5 and 7 transmissions of high-pressure service pump sprocket wheel by timing chain I 2, simultaneously, drive right camshaft sprocket 11 transmissions by timing chain II 13 again; And velocity ratio is identical, has realized the chain-driven of straight line type engine timing.Timing chain I 2, timing chain II 13 systems itself almost do not need to safeguard throughout one's life; Its projected life is consistent with complete machine; Timing chain transmission compact structure, stable drive, noise under the effect of fixed guide I 6, fixed guide II 8, fixed guide III 12, tensioning guide rail I 3, tensioning guide rail II 9 and stretcher I 4, stretcher II 10 is little; And high life has improved the complete machine performance of straight line type motor.
Claims (4)
1. a motor is used chain drive system; It is characterized in that: it comprises two crankshaft sprockets, two camshaft sprockets, high-pressure service pump sprocket wheel, two timing chains, guide rail, stretcher; Said two crankshaft sprockets axially are arranged side by side; Two camshaft sprockets are separately positioned on the and arranged on left and right sides of crankshaft sprocket; Four linearly type arrangements of sprocket wheel, high-pressure service pump sprocket wheel are arranged on four positions of taking back in the sprocket wheels top that straight line type is arranged, and a timing chain is centered around on described crankshaft sprocket, left camshaft sprocket, the high-pressure service pump sprocket wheel; Another timing chain is centered around on described crankshaft sprocket, the right camshaft sprocket, and guide rail is arranged on the timing chain outside between the sprocket wheel.
2. motor according to claim 1 is used chain drive system, it is characterized in that: said guide rail comprises fixed guide, tensioning guide rail, and said tensioning guide rail one end fixedly installs, and the other end connects stretcher.
3. motor according to claim 1 is used chain drive system; It is characterized in that: the said timing chain that is centered around crankshaft sprocket, left camshaft sprocket, high-pressure service pump sprocket wheel; Be provided with a pair of fixed guide and a tensioning guide rail; A pair of fixed guide is separately positioned on the timing chain outside at high-pressure service pump sprocket wheel two ends, and the tensioning guide rail is arranged on the timing chain outside between crankshaft sprocket and left camshaft sprocket.
4. motor according to claim 1 is used chain drive system; It is characterized in that: the said timing chain that is centered around crankshaft sprocket, right camshaft sprocket; Be provided with a fixed guide and a tensioning guide rail, be separately positioned on the timing chain outside at right camshaft sprocket two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200799383U CN202493339U (en) | 2012-03-06 | 2012-03-06 | Chain transmission system for use in engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200799383U CN202493339U (en) | 2012-03-06 | 2012-03-06 | Chain transmission system for use in engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202493339U true CN202493339U (en) | 2012-10-17 |
Family
ID=46999571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200799383U Expired - Fee Related CN202493339U (en) | 2012-03-06 | 2012-03-06 | Chain transmission system for use in engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202493339U (en) |
-
2012
- 2012-03-06 CN CN2012200799383U patent/CN202493339U/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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 266700, 112, Hongkong Road, Qingdao overseas Chinese science and Technology Park, Pingdu City, Shandong Province Patentee after: Qingdao Choho Industrial Co., Ltd. Address before: 266700, 112, Hongkong Road, Qingdao overseas Chinese science and Technology Park, Pingdu City, Shandong Province Patentee before: Qingdao Choho Industrial Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20150306 |
|
| EXPY | Termination of patent right or utility model |