CN205089386U - Valve timing mechanism of motorcycle engine - Google Patents
Valve timing mechanism of motorcycle engine Download PDFInfo
- Publication number
- CN205089386U CN205089386U CN201520875554.6U CN201520875554U CN205089386U CN 205089386 U CN205089386 U CN 205089386U CN 201520875554 U CN201520875554 U CN 201520875554U CN 205089386 U CN205089386 U CN 205089386U
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- CN
- China
- Prior art keywords
- valve
- push rod
- exhaust
- cam
- inlet
- 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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- 238000012856 packing Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a valve timing mechanism of motorcycle engine, includes the epaxial cam of camshaft and cam, and the both sides of cam are equipped with a push rod respectively, and the push rod upper end is connected with the valve through valve spring, and the lower extreme passes through the rocking arm and is connected with the camshaft contact. Camshaft rotation, rocking arm drive the push rod and take place the displacement when receiving the cam promotion, and then through valve spring drive valve emergence displacement, open or close (air) intake valve and exhaust valve, and simple structure and stability are good.
Description
Technical field
The utility model relates to a kind of air distributing mechanism of engine for motorcycle.
Background technique
In existing motor engine gas distribution system, camshaft is provided with a cam, an air inlet lower shake-changing arm promoted by cam and exhaust lower shake-changing arm are set respectively in these cam both sides, air inlet push rod and exhaust jacking rod is promoted respectively again by air inlet lower shake-changing arm and exhaust lower shake-changing arm, and then promote air inlet upper rocker arm and exhaust upper rocker arm by air inlet push rod and exhaust jacking rod again, finally drive intake valve and exhauxt valve opens by air inlet upper rocker arm and exhaust upper rocker arm.The air distribution structure of this structural type is complicated, less stable.
Model utility content
The purpose of this utility model is to provide a kind of structure simple and the good air distributing mechanism of engine for motorcycle of stability.
The purpose of this utility model realizes like this, a kind of air distributing mechanism of engine for motorcycle, comprise the cam on camshaft and camshaft, the both sides of cam are respectively equipped with a push rod, push rod upper end is connected with valve by valve spring, and lower end to be contacted with cam place by valve rocker and connects.Cam axle, cam promotes the valve rocker of side, valve rocker drives the push rod be in contact with it to be subjected to displacement, this push rod upper end drives corresponding valve to be subjected to displacement by valve spring, camshaft is rotated further, this push rod upper end drives valve travelling backwards, meanwhile, the valve rocker that cam promotes opposite side is subjected to displacement, valve rocker drives the push rod being in contact with it connection to be subjected to displacement, this push rod upper end drives corresponding valve to be subjected to displacement by valve spring, camshaft is rotated further, this push rod upper end drives valve travelling backwards, circulation like this, realize the opening and closing of two valves.
Rocking arm rotates and is arranged on pitman arm shaft, and described pitman arm shaft is fixed on casing.
Push rod comprises inlet push rod and exhaust push rod, valve rocker comprises inlet valve rocker and exhaust valve rocker arm, valve comprises intake valve and exhaust valve, valve spring comprises air inlet spring and exhaust spring, and the push rod of camshaft side is inlet push rod, and upper end is connected with intake valve by inlet-valve spring, lower end is contacted with cam place by inlet valve rocker, the push rod of cam opposite side is exhaust push rod, and its upper end is connected with exhaust valve by exhaust spring, and lower end is contacted with cam place by exhaust rocker arm.
In order to structural stability, compact, inlet valve rocker and exhaust valve rocker arm are arranged on a pitman arm shaft.
Inlet valve rocker and exhaust valve rocker arm are equipped with rocking arm hole, and inlet valve rocker and exhaust valve rocker arm are located on pitman arm shaft respectively by rocking arm hole.
In order to reduce component wear, between rocking arm hole and pitman arm shaft, be provided with packing ring.
The utility model has following beneficial effect:
1, the push rod upper end of the utility model air distributing mechanism of engine for motorcycle is connected with valve by valve spring, lower end is connected with cam contact by rocking arm; rocking arm is subject to driving push rod to be subjected to displacement when cam promotes; push rod drives valve to be subjected to displacement by valve spring; thus open or close valve; and structure is simple, good stability.
2, the utility model is easy to realize, and cost is low.
Accompanying drawing explanation
Fig. 1 is the utility model air distributing mechanism of engine for motorcycle schematic diagram.
In figure, 1. camshaft, 2. cam, 3. push rod, 4. valve spring, 5. rocking arm, 6. valve.
Embodiment
Embodiment, a kind of air distributing mechanism of engine for motorcycle, see Fig. 1, comprise camshaft 1, camshaft 1 is provided with cam 2, and the both sides of camshaft 1 are respectively equipped with a push rod 3, push rod 3 upper end is connected with valve 6 by valve spring 4, and lower end is contacted with camshaft 1 by rocking arm 3 and connects.
Push rod 3 comprises inlet push rod and exhaust push rod, and valve spring 4 comprises inlet-valve spring and exhaust valve spring, and rocking arm 3 comprises intake rocker and exhaust rocker arm, and valve 6 comprises intake valve and exhaust valve.
The push rod 3 of camshaft 1 side is inlet push rod, the upper end of inlet push rod is connected with intake valve by inlet-valve spring, lower end is contacted with cam 2 place by exhaust rocker arm, the push rod 3 of camshaft 1 opposite side is exhaust push rod, its upper end is connected with exhaust valve by exhaust valve spring, and inlet valve rocker and exhaust valve rocker arm rotate and be arranged on pitman arm shaft (not shown in FIG.).
Inlet valve rocker and exhaust valve rocker arm are equipped with rocking arm hole, and inlet valve rocker and exhaust valve rocker arm are located on a pitman arm shaft respectively by rocking arm hole, and be provided with packing ring between rocking arm hole and pitman arm shaft, pitman arm shaft is fixed on casing.
During engine operation, camshaft 1 rotates, cam 2 promotes intake rocker and is subjected to displacement, intake rocker is fulcrum with pitman arm shaft and promotes inlet push rod to be subjected to displacement, inlet push rod is driven on intake valve by inlet-valve spring and moves, open intake valve, camshaft 1 is rotated further, cam 2 leaves intake rocker, intake rocker travelling backwards, drive inlet push rod travelling backwards, thus closedown intake valve, meanwhile, cam 2 turns to exhaust rocker arm, promotion exhaust rocker arm is subjected to displacement, exhaust rocker arm is fulcrum with pitman arm shaft and promotes exhaust push rod to be subjected to displacement, driven on exhaust valve by exhaust valve spring and move, open exhaust valve, circulation like this.
The utility model air distributing mechanism of engine for motorcycle structure is simple, good stability, is easy to realize, and cost is low.
Claims (6)
1. an air distributing mechanism of engine for motorcycle, comprise the cam (2) on camshaft (1) and camshaft (1), the both sides of described camshaft (1) are respectively equipped with push rod (3), it is characterized in that: described push rod (3) upper end is connected with valve (6) by valve spring (4), lower end is contacted with cam (2) place by rocking arm (5) and connects.
2. air distributing mechanism of engine for motorcycle as claimed in claim 1, is characterized in that: described rocking arm (5) rotates and is arranged on pitman arm shaft, and described pitman arm shaft is fixed on casing.
3. air distributing mechanism of engine for motorcycle as claimed in claim 1 or 2, it is characterized in that: described push rod (3) comprises inlet push rod and exhaust push rod, described rocking arm (5) comprises inlet valve rocker and exhaust valve rocker arm, described valve spring (4) comprises inlet-valve spring and exhaust valve spring, described valve (6) comprises intake valve and exhaust valve, the push rod (3) of described camshaft (1) side is inlet push rod, its upper end is connected with intake valve by inlet-valve spring, lower end is contacted with cam (2) place by inlet valve rocker, the push rod (3) of described camshaft (1) opposite side is exhaust push rod, its upper end is connected with exhaust valve by exhaust spring, lower end is contacted with cam (2) place by exhaust rocker arm.
4. air distributing mechanism of engine for motorcycle as claimed in claim 3, is characterized in that: described inlet valve rocker and exhaust valve rocker arm are arranged on a pitman arm shaft.
5. air distributing mechanism of engine for motorcycle as claimed in claim 4, it is characterized in that: described inlet valve rocker and exhaust valve rocker arm are equipped with rocking arm hole, described inlet valve rocker and exhaust valve rocker arm are located on pitman arm shaft respectively by rocking arm hole.
6. air distributing mechanism of engine for motorcycle as claimed in claim 5, is characterized in that: be provided with packing ring between described rocking arm hole and pitman arm shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875554.6U CN205089386U (en) | 2015-11-05 | 2015-11-05 | Valve timing mechanism of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520875554.6U CN205089386U (en) | 2015-11-05 | 2015-11-05 | Valve timing mechanism of motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205089386U true CN205089386U (en) | 2016-03-16 |
Family
ID=55480082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520875554.6U Expired - Fee Related CN205089386U (en) | 2015-11-05 | 2015-11-05 | Valve timing mechanism of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205089386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607016A (en) * | 2017-10-24 | 2018-01-19 | 江门市长华集团有限公司 | A kind of cubing of air valve of motor cycle rocking arm |
| CN115434778A (en) * | 2022-10-14 | 2022-12-06 | 福建永强力加动力设备有限公司 | Novel camshaft |
-
2015
- 2015-11-05 CN CN201520875554.6U patent/CN205089386U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607016A (en) * | 2017-10-24 | 2018-01-19 | 江门市长华集团有限公司 | A kind of cubing of air valve of motor cycle rocking arm |
| CN107607016B (en) * | 2017-10-24 | 2023-06-13 | 江门市长华集团有限公司 | Gauge for motorcycle valve rocker |
| CN115434778A (en) * | 2022-10-14 | 2022-12-06 | 福建永强力加动力设备有限公司 | Novel camshaft |
| CN115434778B (en) * | 2022-10-14 | 2024-07-16 | 福建永强力加动力设备有限公司 | Novel cam shaft |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 |