CN202370605U - Chain transmission air distribution mechanism for marine engine - Google Patents
Chain transmission air distribution mechanism for marine engine Download PDFInfo
- Publication number
- CN202370605U CN202370605U CN2011205269923U CN201120526992U CN202370605U CN 202370605 U CN202370605 U CN 202370605U CN 2011205269923 U CN2011205269923 U CN 2011205269923U CN 201120526992 U CN201120526992 U CN 201120526992U CN 202370605 U CN202370605 U CN 202370605U
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- CN
- China
- Prior art keywords
- cam shaft
- chain
- correct time
- marine engine
- chain wheel
- 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 - Lifetime
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Abstract
The utility model discloses a chain transmission air distribution mechanism for a marine engine, and belongs to an air distribution mechanism. The chain transmission air distribution mechanism comprises a cylinder end cover, a cylinder cover, a cylinder body, a box body, an exhaust camshaft, an air inlet camshaft and a crankshaft, wherein the cylinder end cover, the cylinder cover, the cylinder body and the box body are connected sequentially; an exhaust camshaft chain wheel is arranged on the exhaust camshaft; an air inlet camshaft chain wheel and a large timing chain wheel are arranged on the air inlet camshaft; the exhaust camshaft chain wheel is connected with the air inlet camshaft chain wheel by an air distribution chain; a small timing chain wheel is arranged on the crankshaft and is connected with the large timing chain wheel by an air distribution timing chain; and the large timing chain wheel is arranged on the inner side of the air inlet camshaft chain wheel. The chain transmission air distribution mechanism for the marine engine has the characteristics that chain transmission is adopted, so that abrasion is avoided, the service life is prolonged, replacement frequency and cost are reduced, the mechanism has a compact structure, and the like.
Description
Technical field
The utility model relates to a kind of distribution device, the above marine engine chain transmission of especially a kind of four-stroke four valves distribution device.
Background technique
The structures shape of motor the performance of motor, reliability and manufacture cost etc.Wherein, the engines distribution driving mechanism is a most important component in the four stroke engine, and this structure influence the Performance And Reliability of motor etc.Usually, the transmission of four-stroke marine engine distribution part mainly is to be with transmission synchronously, and the shortcoming below existing with transmission synchronously: band is when work synchronously, and band directly contacts with Idle wheel, is easy to cause wearing and tearing, can shorten the working life of synchronous band like this.And because the wearing and tearing of band synchronously, the frequency of replacing is just higher, and so not only expense is big, and is also cumbersome.Its two synchronous belt drive mechanism occupies the comparison large space.At present, good solution is not also arranged.
The model utility content
The technical assignment of the utility model is to above-mentioned deficiency of the prior art a kind of marine engine chain transmission distribution device to be provided; This a kind of marine engine chain transmission distribution device has the employing chain transmission; Avoid causing wearing and tearing, increased working life, reduce and change the frequency; Reduced cost, the characteristics of compact structure.
The utility model solves the technological scheme that its technical problem adopted: it comprises cowl hood, cylinder head, cylinder block, casing, exhaust cam shaft, admission cam shaft and bent axle; Described cowl hood, cylinder head, cylinder block and casing are connected successively; Described exhaust cam shaft is provided with the exhaust cam shaft sprocket wheel; Be respectively arranged with on the described admission cam shaft admission cam shaft sprocket wheel and correct time hinge wheel; Described exhaust cam shaft sprocket wheel links to each other through the distribution chain with the admission cam shaft sprocket wheel; Described bent axle is provided with the minor sprocket in correct time, described correct time minor sprocket with correct time hinge wheel link to each other through the valve timing chain, described correct time, hinge wheel was arranged on the inboard of admission cam shaft sprocket wheel.
Be respectively arranged with leading carrier bar and pair on the cylinder block of described valve timing chain both sides and lead carrier bar, be connected with the first automatic type stretcher on the described leading carrier bar, the described first automatic type stretcher is fixed on the cylinder block.
One side of described distribution chain is provided with the second automatic type stretcher, and the described second automatic type stretcher is fixed in the cowl hood.
A kind of marine engine chain transmission distribution device of the utility model is compared with existing technology, has following outstanding beneficial effect: adopt chain transmission, avoid causing wearing and tearing; Increase working life, reduced and change the frequency, reduced cost; Easy to use, and transmission efficiency is high, and life cycle is long; Do not slide, compact structure has improved characteristics such as machine outside motor cost performance and market competition advantage.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of marine engine chain transmission distribution device;
Description of reference numerals: 1, exhaust cam shaft sprocket wheel, 2, cowl hood, 3, exhaust cam shaft, 4, the valve timing chain, 5, the admission cam shaft sprocket wheel; 6, admission cam shaft, 7, correct time hinge wheel, 8, leading carrier bar, 9, the first automatic type stretcher; 10, cylinder block, 11, correct time minor sprocket, 12, bent axle, 13, casing; 14, pair is led carrier bar, and 15, cylinder head, 16, the distribution chain, 17, the second automatic type stretcher.
Embodiment
With reference to explanation at length below a kind of marine engine chain transmission distribution device work of 1 pair of the utility model of Figure of description.
A kind of marine engine chain transmission distribution device of the utility model; Its structure comprises cowl hood 2, cylinder head 15, cylinder block 10, casing 13, exhaust cam shaft 3, admission cam shaft 6 and bent axle 12; Described cowl hood 2, cylinder head 15, cylinder block 10 are connected with casing 13 successively; Described exhaust cam shaft 3 is provided with exhaust cam shaft sprocket wheel 1; Be respectively arranged with admission cam shaft sprocket wheel 5 and hinge wheel 7 in correct time on the described admission cam shaft 6, described exhaust cam shaft sprocket wheel 1 links to each other through distribution chain 16 with admission cam shaft sprocket wheel 5, and described bent axle 12 is provided with minor sprocket 11 in correct time; Described correct time minor sprocket 11 with correct time hinge wheel 7 link to each other through valve timing chain 4, described correct time, hinge wheel 7 was arranged on the inboard of admission cam shaft sprocket wheel 5.
Be respectively arranged with leading carrier bar 8 on the cylinder block 10 of described valve timing chain 4 both sides and lead carrier bar 14 with pair; Valve timing chain 4 is positioned, prevent valve timing chain 4 sideslips, be connected with the first automatic type stretcher 9 on the described leading carrier bar 8; The described first automatic type stretcher 9 is fixed on the cylinder block 10; Described leading carrier bar 8 is regulated by the first automatic type stretcher 9, prevents that valve timing chain 4 is loosening
One side of described distribution chain 16 is provided with the second automatic type stretcher 17, and the described second automatic type stretcher 17 is fixed in the cowl hood 2, and distribution chain 16 is regulated by the second automatic type stretcher 17 automatically, prevents that distribution chain 16 is loosening.
When motor moved, bent axle 12 runnings drove minor sprocket 11 rotations in correct time; Correct time, minor sprocket 11 drove hinge wheel 7 rotations in correct time through valve timing chain 4, and correct time, hinge wheel 7 drive admission cam shafts 6 rotated, and the admission cam shaft sprocket wheel 5 on the admission cam shaft 6 rotates simultaneously; Admission cam shaft sprocket wheel 5 drives exhaust cam shaft sprocket wheel 1 through distribution chain 16 and rotates; Exhaust cam shaft sprocket wheel 1 makes exhaust cam shaft 3 runnings, accomplishes four circulations of motor, guarantees the motor proper functioning.
Except that the described technical characteristics of specification, be the known technology of those skilled in the art.
Claims (3)
1. marine engine chain transmission distribution device; Comprise cowl hood, cylinder head, cylinder block, casing, exhaust cam shaft, admission cam shaft and bent axle; Described cowl hood, cylinder head, cylinder block and casing are connected successively; It is characterized in that: described exhaust cam shaft is provided with the exhaust cam shaft sprocket wheel; Be respectively arranged with on the described admission cam shaft admission cam shaft sprocket wheel and correct time hinge wheel, described exhaust cam shaft sprocket wheel links to each other through the distribution chain with the admission cam shaft sprocket wheel, described bent axle is provided with the minor sprocket in correct time; Described correct time minor sprocket with correct time hinge wheel link to each other through the valve timing chain, described correct time, hinge wheel was arranged on the inboard of admission cam shaft sprocket wheel.
2. a kind of marine engine chain transmission distribution device according to claim 1; It is characterized in that: be respectively arranged with leading carrier bar and pair on the cylinder block of described valve timing chain both sides and lead carrier bar; Be connected with the first automatic type stretcher on the described leading carrier bar, the described first automatic type stretcher is fixed on the cylinder block.
3. a kind of marine engine chain transmission distribution device according to claim 1, it is characterized in that: a side of described distribution chain is provided with the second automatic type stretcher, and the described second automatic type stretcher is fixed in the cowl hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205269923U CN202370605U (en) | 2011-12-15 | 2011-12-15 | Chain transmission air distribution mechanism for marine engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205269923U CN202370605U (en) | 2011-12-15 | 2011-12-15 | Chain transmission air distribution mechanism for marine engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370605U true CN202370605U (en) | 2012-08-08 |
Family
ID=46594311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205269923U Expired - Lifetime CN202370605U (en) | 2011-12-15 | 2011-12-15 | Chain transmission air distribution mechanism for marine engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370605U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418574A (en) * | 2011-12-15 | 2012-04-18 | 山东亚翔动力有限公司 | Engine chain transmission air distribution mechanism for ship |
| CN105604630A (en) * | 2014-11-14 | 2016-05-25 | 现代自动车株式会社 | Chain guide structure for vehicle engine |
| CN108869669A (en) * | 2017-05-16 | 2018-11-23 | 马自达汽车株式会社 | The timing chain apparatus of engine |
-
2011
- 2011-12-15 CN CN2011205269923U patent/CN202370605U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418574A (en) * | 2011-12-15 | 2012-04-18 | 山东亚翔动力有限公司 | Engine chain transmission air distribution mechanism for ship |
| CN105604630A (en) * | 2014-11-14 | 2016-05-25 | 现代自动车株式会社 | Chain guide structure for vehicle engine |
| CN105604630B (en) * | 2014-11-14 | 2020-02-14 | 现代自动车株式会社 | Chain guide structure for automobile engine |
| CN108869669A (en) * | 2017-05-16 | 2018-11-23 | 马自达汽车株式会社 | The timing chain apparatus of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |