CN201100152Y - Engine gas supply protrusion wheel axis - Google Patents
Engine gas supply protrusion wheel axis Download PDFInfo
- Publication number
- CN201100152Y CN201100152Y CNU2007201882457U CN200720188245U CN201100152Y CN 201100152 Y CN201100152 Y CN 201100152Y CN U2007201882457 U CNU2007201882457 U CN U2007201882457U CN 200720188245 U CN200720188245 U CN 200720188245U CN 201100152 Y CN201100152 Y CN 201100152Y
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- CN
- China
- Prior art keywords
- camshaft
- vehicle
- utility
- centrifugal
- engine gas
- 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
- 230000006837 decompression Effects 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 11
- 238000012856 packing Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Valve Device For Special Equipments (AREA)
Abstract
The utility model relates to an engine gas distribution camshaft, a flange plate (2) which is used to connect a timing sprocket is fixedly arranged on one end of the camshaft (1), and a slot (4) which is axially extended to a graduated circle of an exhaust cam (3) and is used to cooperate to install a decompression pin of a centrifugal type decompression mechanism is arranged on one end of the flange plate (2) on the camshaft (1). After the engine gas distribution camshaft of the utility model cooperates to install the centrifugal type decompression mechanism, the pressure of an engine cylinder lowers automatically when a vehicle is in the idling condition, thereby the impact force in the power transmission process is reduced, the 'elastic foot' phenomenon when the vehicle is started is eliminated, simultaneously, after the vehicle is started, the pressure of the engine cylinder quickly recovers to normal condition, and the engine gas distribution camshaft supports normal operation when the vehicle works in other conditions.
Description
Technical field
The utility model relates to the improvement of engines distribution cam axle, relates in particular to a kind of engines distribution cam axle of the centrifugal mechanism of decompressor of packing into.
Background technique
Existing motorcycle " shell foot " phenomenon can occur when idling starts to walk.Its reason is that under the idling operation, the cylinder pressure of motor is relatively large.When motorcycle was started to walk, engine power can produce bigger impact force by the moment that gearbox inserts and exports, and this impact force is delivered on the gear shift pedal by gearbox, made gear shift pedal produce shake, and bump people's foot gives to drive and brings great discomfort.
The model utility content
The purpose of this utility model is in order to overcome above-mentioned deficiency, a kind of engines distribution cam axle is provided, its centrifugal mechanism of decompressor of can packing into easily, make motor when idling operation, can reduce cylinder pressure automatically, the impact force that is produced when reducing vehicle start is eliminated " shell foot " phenomenon.
For achieving the above object, engines distribution cam axle of the present utility model, end at camshaft is installed with the flange plate that is used for connecting timing sprocket, and camshaft is provided with the groove that is used to cooperate the centrifugal mechanism of decompressor decompression of installation pin that extends axially to the exhaust cam basic circle at an end of flange plate.
After the utility model cooperates the centrifugal mechanism of decompressor of packing into by groove, can realize that promptly the automatic reduction cylinder of motor when idling operation press, the impact force that is produced when reducing vehicle start is eliminated " shell foot " phenomenon.And when motor was in other operating mode, moment returned to predefined value with cylinder pressure, guaranteed the normal operation of vehicle from side.
The utility model is to cooperate the centrifugal mechanism of decompressor of packing into like this: at first by first, second screw timing sprocket is installed on the flange plate, the position corresponding to groove on the camshaft on the timing sprocket is provided with porose.The described centrifugal mechanism of decompressor is a prior art, and it comprises that centrifugal, band stir the decompression pin and the return spring of relief portion, and an end of decompression pin passes the hole on the timing sprocket versatilely, makes to stir relief portion and be positioned at groove and be right against basic circle on the exhaust cam; The other end of decompression pin and centrifugal are affixed; One end of return spring is fixed on centrifugal, and the other end is fixed on the timing sprocket; Timing gear are provided with the baffle plate that carries out axial limiting to centrifugal.During original state, when promptly camshaft speed was relatively low, centrifugal was against on first screw under the pretightening force effect of return spring, and at this moment, the relief portion of stirring on the decompression pin is partly stretched out outside the groove; After camshaft speed raise, centrifugal was thrown out of under action of centrifugal force, stopped operating after rotating to the position of second screw, and in this process, centrifugal drives the decompression pin simultaneously and rotate, and all is positioned at groove to stirring relief portion.
The utility model is work like this after the centrifugal mechanism of decompressor is packed in cooperation into: during the motion of motorcycle idling, the rotating speed of camshaft is relatively low, under the pretightening force effect of return spring, centrifugal is butted on first screw, under this location status, the relief portion of stirring on the decompression pin is partly stretched out outside the groove, the jack-up rocking arm is opened corresponding exhaust valve, the external exhaust decompression of cylinder, thereby the impact force when having reduced vehicle start is greatly eliminated " shell foot " phenomenon; Behind vehicle start, the rotating speed of camshaft raises, centrifugal overcomes the pretightening force of return spring rapidly, rotates to the position of second screw under action of centrifugal force, thereby make stir the decompression position all be positioned at groove, at this moment, resetted by the rocking arm of jack-up, the valve that is opened is closed thereupon, engine cylinder pressure returns to set condition, guarantees can normally move behind the vehicle start.
The beneficial effects of the utility model are: after the centrifugal mechanism of decompressor is packed in cooperation into, make vehicle when idling operation, engine cylinder pressure reduces automatically, thereby reduces the impact force in the power transmission process, " shell foot " phenomenon when eliminating starting.Simultaneously, behind vehicle start, make engine cylinder pressure moment return to normal state, the normal operation of support unit when other operating modes.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation after the utility model cooperates the centrifugal mechanism of decompressor of packing into;
Fig. 4 stirs the schematic representation of relief portion 9 parts when stretching out the outer jack-up rocking arm of groove 4;
Fig. 5 stirs relief portion 9 all to be positioned at schematic representation after groove 4 inner rocker arms reset;
Among the figure: 1. camshaft; 2. flange plate; 3. exhaust cam; 4. groove; 5. return spring; 6. centrifugal; 7. first screw; 8. decompression is sold; 9. stir relief portion; 10. second screw.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to attached Fig. 1 and 2, engines distribution cam axle of the present utility model, end at camshaft 1 is installed with the flange plate 2 that is used for connecting timing sprocket, and the end in flange plate 2 on the camshaft 1 is provided with the groove 4 that is used to cooperate the centrifugal mechanism of decompressor decompression of installation pin that extends axially to exhaust cam 3 basic circles.
Referring to accompanying drawing 3,4 and 5, the utility model can cooperate the centrifugal mechanism of decompressor of packing into easily.
Now 3,4 and 5 the working principle of the utility model after the centrifugal mechanism of decompressor is packed in cooperation into is described in conjunction with the accompanying drawings: during the motion of motorcycle idling, the rotating speed of camshaft 1 is relatively low, under the pretightening force effect of coordination spring 5, be butted on for centrifugal 6 on first screw 7, under this location status, relief portion 9 parts of stirring on the decompression pin 8 are stretched out outside the groove 4, the jack-up rocking arm, open corresponding exhaust valve, the external exhaust decompression of cylinder, thereby the impact force when having reduced vehicle start is greatly eliminated " shell foot " phenomenon; Behind vehicle start, the rotating speed of camshaft 1 raises, under action of centrifugal force, overcome the pretightening force of return spring 5 rapidly, rotate to the position of second screw 10 for centrifugal 6, thereby make the relief portion 9 of stirring on the decompression pin 8 all be positioned at groove 4, at this moment, resetted by the rocking arm of jack-up, the corresponding valve that is opened is closed thereupon, engine cylinder pressure returns to set condition, guarantees can normally move behind the vehicle start.
Claims (1)
1. engines distribution cam axle, end at camshaft (1) is installed with the flange plate (2) that is used for connecting timing sprocket, it is characterized in that: described camshaft (1) is provided with the groove (4) that is used to cooperate the centrifugal mechanism of decompressor decompression of installation pin that extends axially to exhaust cam (3) basic circle at an end of flange plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201882457U CN201100152Y (en) | 2007-11-16 | 2007-11-16 | Engine gas supply protrusion wheel axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201882457U CN201100152Y (en) | 2007-11-16 | 2007-11-16 | Engine gas supply protrusion wheel axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201100152Y true CN201100152Y (en) | 2008-08-13 |
Family
ID=39936685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201882457U Expired - Fee Related CN201100152Y (en) | 2007-11-16 | 2007-11-16 | Engine gas supply protrusion wheel axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201100152Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444444A (en) * | 2010-10-05 | 2012-05-09 | 铃木株式会社 | Decompression device for engine |
-
2007
- 2007-11-16 CN CNU2007201882457U patent/CN201100152Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444444A (en) * | 2010-10-05 | 2012-05-09 | 铃木株式会社 | Decompression device for engine |
| CN102444444B (en) * | 2010-10-05 | 2014-04-30 | 铃木株式会社 | Decompression device for engine |
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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: CHONGQING XIANGLING AUTO PARTS CO., LTD. Free format text: FORMER OWNER: DU JIANG Effective date: 20110908 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110908 Address after: 401123, the north of Chongqing City, the new big bamboo forest Street Xiang Ling company Patentee after: CHONGQING XIANGLING AUTO PARTS CO., LTD. Address before: 401123 Chongqing Town, North New District, Dazhu Patentee before: Du Jiang |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING XIANGLING MACHINERY CO., LTD. Free format text: FORMER NAME: CHONGQING XIANGLING AUTO PARTS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 401123 Chongqing Town, North New District, Dazhu Patentee after: Auspicious mound machinery limited company of Chongqing City Address before: 401123, the north of Chongqing City, the new big bamboo forest Street Xiang Ling company Patentee before: CHONGQING XIANGLING AUTO PARTS CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20161116 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |