CN203114367U - Engine and camshaft thereof - Google Patents
Engine and camshaft thereof Download PDFInfo
- Publication number
- CN203114367U CN203114367U CN201220532323.1U CN201220532323U CN203114367U CN 203114367 U CN203114367 U CN 203114367U CN 201220532323 U CN201220532323 U CN 201220532323U CN 203114367 U CN203114367 U CN 203114367U
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- groove
- gear
- slide block
- central shaft
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Abstract
The utility model discloses an engine. The engine comprises a center shaft, a gear wheel which is fixed on the center shaft, and an exhaust cam which is fixed on the center shaft. The engine further comprises a pressure reducing pin, a sliding block and an elastic reset piece, wherein the pressure reducing pin can be rotationally limited in a groove of a base circle of the exhaust cam, and the engine comprises a first side surface which deviates from the bottom of the groove and a second side surface which is connected with the first side surface; the first side surface raises out of the base circle; the second side surface is close to the bottom of the groove, and the second side surface cannot be higher than the base circle when the second side surface rotates towards the outside of the groove; the sliding block is used for toggling the pressure reducing pin, so that the first side surface is close to the bottom of the groove, and the second side surface faces towards the outside of the groove; the sliding block is slidably arranged at a first sliding groove on the gear wheel, and the sliding block is provided with a second sliding groove matched with a deflector rod fixed at the end of the pressure reducing pin; and the elastic reset piece is fixedly connected with a rocker arm and the gear wheel. The engine provided by the utility model is low in failure rate of electrical starting. The utility model further provides a camshaft capable of assisting the engine in reducing the failure rate of the engine starting of the engine.
Description
Technical field
The utility model relates to technical field of engines, more particularly, relates to a kind of motor, also relates to a kind of camshaft for motor.
Background technique
Reciprocating engine also is piston engine, is a kind of motor that utilizes one or more piston pressure to be converted to rotation function.Camshaft is parts in the piston engine, the unlatching and the closure that are used for the control valve, comprise central shaft, be fixed on the gear on the above-mentioned central shaft and be fixed on cam on the above-mentioned central shaft, wherein, cam corresponding with each cylinder of motor on the cam has intake cam and exhaust cam, and intake cam can be set to according to the concrete structure of motor with 1 cam or 2 different cams with exhaust cam.
Along with the development of society, people are more and more to the demand of the motor of big discharge capacity, and still, the engine cylinder internal pressure of big discharge capacity is bigger, and the burden of magnetogenerator is big in the electric start-up course, the frequency height that it breaks down.
In addition, the in-cylinder pressure of large-duty engine that is applied to motorcycle is bigger, causes the motorcycle pin to start difficulty.
In sum, how to provide a kind of when starting the less large-duty engine of in-cylinder pressure, to alleviate the burden of magnetogenerator in the electric start-up course, reducing the rate of fault that electricity starts is those skilled in the art's problem demanding prompt solutions.
The model utility content
In view of this, the utility model provides a kind of motor, and in-cylinder pressure was less when it started, and can alleviate the burden of magnetogenerator in the electric start-up course, reduces the rate of fault that electricity starts.The utility model also provides a kind of camshaft that is applied to above-mentioned motor.
For achieving the above object, the utility model provides following technological scheme:
A kind of motor comprises camshaft, and described camshaft has central shaft, be fixed on the gear on the described central shaft and be fixed on exhaust cam on the described central shaft; Also comprise:
Decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises first side that deviates from described bottom portion of groove and second side that links to each other with described first side; Protrude outside the described basic circle described first side; Described second side is near described bottom portion of groove, and it is not higher than described basic circle when going to outside described groove;
Be used for dialling the described decompression pin of commentaries on classics by centrifugal force, and make described first side press close to the bottom of described groove, make the slide block of described second side outside described groove, it is slidably disposed on the first chute place on the described gear, and which is provided with second chute that cooperates with the driving lever that is fixed on described decompression pin end; With
The elastic reset spare that is connected with described gear with described slide block.
Preferably, in the above-mentioned motor, the end face of described gear is provided with sinking space, and described slide block is positioned at described sinking space.
Preferably, in the above-mentioned motor, also comprise the block that is fixed on the described gear, described slide block is between described gear and described block.
Preferably, in the above-mentioned motor, described slide block is positioned at the place, side that described gear deviates from described exhaust cam, and described decompression pin passes described gear.
Preferably, in the above-mentioned motor, described slide block is provided with first mounting hole; Described elastic reset spare is spring 206, and the one end hook hangs over the described first mounting hole place, and the other end is hooked on the second mounting hole place on the described gear.
Preferably, in the above-mentioned motor, described second chute is positioned on the described slide block on the side of described exhaust cam.
Preferably, in the above-mentioned motor, described sinking space is cylindric.
Preferably, in the above-mentioned motor, described gear is provided with the through hole that is communicated with described sinking space.
A kind of camshaft for motor comprises central shaft and the camshaft that is fixed on the gear on the described central shaft; Described gear is near the exhaust cam that is fixed on the described central shaft; Also comprise:
Decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises first side that deviates from described bottom portion of groove and second side that links to each other with described first side; Protrude outside the described basic circle described first side; Described second side is near described bottom portion of groove, and it is not higher than described basic circle when going to outside described groove;
Be used for stirring described decompression pin rotation by centrifugal force, and make described first side press close to the bottom of described groove, make the slide block of described second side outside described groove, it is slidably disposed on the first chute place on the described gear, and which is provided with second chute that cooperates with the driving lever that is fixed on described decompression pin end; With
The elastic reset spare that is connected with described gear with described slide block.
The motor that the utility model provides comprises camshaft, and this camshaft has central shaft, be fixed on the gear on the above-mentioned central shaft and be fixed on exhaust cam on the above-mentioned central shaft; Also comprise decompression pin, slide block and elastic reset spare, wherein, in the groove at spacing basic circle place at exhaust cam, it comprises first side that deviates from bottom portion of groove and second side that links to each other with above-mentioned first side rotationally for decompression pin; Protrude outside the basic circle first side; Second side is near the bottom of groove, and it is not higher than basic circle when going to outside groove; Slide block is used for stirring the rotation of decompression pin by centrifugal force, and make first side press close to the bottom of groove, make second side outside groove, it is slidably disposed on the first chute place on the gear, and which is provided with second chute that cooperates with the driving lever that is fixed on decompression pin end; Elastic reset spare is connected with gear with slide block.
During work, motor centrifugal force when beginning to start is less, slide block rotates with camshaft under the effect of elastic reset spare, decompression pin is kept motionless or fine rotation, and protrude outside the basic circle first side on the decompression pin, when the basic circle of exhaust cam goes to the exhaust valve lower push rod with this push rod jack-up, exhaust valve is opened certain interval and is discharged gas in the jar, thereby the reduction in-cylinder pressure, the burden of magnetogenerator when alleviating startup reduces the probability that magnetogenerator breaks down; After the normal startup of motor, the centrifugal force of slide block becomes big and surpasses the restoring force of elastic reset spare, slide block is along slip away central shaft and stir driving lever of first chute, driving lever drives the rotation of decompression pin, make first side press close to the bottom of groove, second side is towards the slot opening place, and the decompression pin is inoperative to the push rod of exhaust cam correspondence, the exhaust casing normal exhaust; During engine misses, the centrifugal force of slide block reduces, and its effect redoubling next time at elastic reset spare is dialled back original position with driving lever, and the decompression pin goes back to initial position.
Its in-cylinder pressure is little during engine start that the utility model provides, and the burden of magnetogenerator was little when electricity started, and the rate of fault that electricity starts is low.
In addition, when the motor that the utility model provides was used for motorcycle, it is more laborsaving, convenient that pin is started.
The utility model also provides a kind of camshaft that is applied to motor, and it can be assisted to reduce and start the dynamo-electric rate of fault that starts.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the camshaft that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the left view of Fig. 1;
Wherein, among Fig. 1-Fig. 2:
Gear 101; Exhaust cam 102; Driving lever 201; Decompression pin 202; Slide block 203; First chute 204; Block 205; Spring 206.
Embodiment
The utility model embodiment discloses a kind of motor, and in-cylinder pressure was less when it started, and can alleviate the burden of magnetogenerator in the electric start-up course, reduces the rate of fault that electricity starts.The utility model embodiment also discloses a kind of camshaft that is applied to above-mentioned motor.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technological scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1-Fig. 2, the motor that the utility model embodiment provides comprises camshaft, camshaft has central shaft, be fixed on the gear 101 on the above-mentioned central shaft and be fixed on exhaust cam 102 on the above-mentioned central shaft, also comprising decompression pin 202, slide block 203 and elastic reset spare; Decompression pin 202 is rotationally in the groove at spacing basic circle place at exhaust cam 102, and it comprises second side that first side that deviates from bottom portion of groove can link to each other with described first side; Protrude outside the above-mentioned basic circle first side; Second side is near bottom portion of groove, and it is not higher than basic circle when going to outside groove, is positioned at groove when namely second side goes to outside groove; Slide block 203 is used for dialling commentaries on classics decompression pin 202 by centrifugal force, so that the bottom of groove is pressed close in first side, make second side outside groove, it is slidably disposed on first chute, 204 places on the gear 101, and which is provided with the second chute (not shown) that cooperates with the driving lever 201 that is fixed on decompression pin 202 ends; Elastic reset spare is fixedlyed connected with gear 101 with slide block 203 respectively.
During work, motor centrifugal force when beginning to start is less, slide block 203 rotates with camshaft under the effect of elastic reset spare, decompression pin 202 is kept motionless or fine rotation, and protrude outside the basic circle first side on the decompression pin 202, when the basic circle of exhaust cam 102 goes to the exhaust valve lower push rod with this push rod jack-up, exhaust valve is opened certain interval and is discharged gas in the jar, thereby the reduction in-cylinder pressure, the burden of magnetogenerator when alleviating startup reduces the probability that magnetogenerator breaks down; After the normal startup of motor, the centrifugal force of slide block 203 becomes big and surpasses the restoring force of elastic reset spare, slide block 203 is along slip away central shaft and stir driving lever 201 of first chute 204, driving lever 201 drives 202 rotations of decompression pin, make first side press close to the bottom of groove, second side is towards the slot opening place, and the push rod of 202 pairs of exhaust cam 102 correspondences of decompression pin is inoperative, the exhaust casing normal exhaust; During engine misses, the centrifugal force of slide block 203 reduces, and its effect redoubling next time at elastic reset spare returns 201 groups of driving levers to original position, and decompression pin 202 goes back to initial position.
Its in-cylinder pressure is little during engine start that the utility model embodiment provides, and the burden of magnetogenerator was little when electricity started, and the rate of fault that electricity starts is low.
In addition, when the motor that the utility model embodiment provides was used for motorcycle, it is more laborsaving, convenient that pin is started.
In the motor that above-described embodiment provides, when just starting, slide block 203 is pushed or pulled to elastic reset spare to central shaft.Concrete, first chute 204 is along the radial arrangement of gear 101.
Concrete, in the motor that above-described embodiment provides, the end face of gear 101 is provided with sinking space, and slide block 203 is positioned at above-mentioned sinking space.In the motor that present embodiment provides, slide block 203 is in the sinking space, has avoided whole camshaft to increase along the total length of axial direction, and has realized reducing on the basis of other structure that does not change motor the effect of the rate of fault of magnetogenerator.
In the motor that above-described embodiment provides, slide block 203 comprises the main part that is positioned at sinking space and is positioned at the spacing block set of first chute 204 that wherein spacing block set is fixedlyed connected with main part.Slide block 203 can be by the clipping part be set mode along the axial limiting of central shaft in sinking space, concrete, fixedly connected with spacing block set in the clipping part, and paste and do not arranging on the gear 101 on the side of sinking space; Slide block 203 can also by be fixed on block 205 on the gear 101 along the axial limiting of central shaft in sinking space, concrete, in the process that slide block 203 slides along first chute 204 all the time between block 205 and pulley.
In the motor that above-described embodiment provides, groove is open-minded near an end of gear 101, and the other end is near the middle part of exhaust cam 102; Second chute is arranged on the slide block 203 towards the side of exhaust cam 102, and the end of slide block 203 and groove is spacing in groove along the pin 202 that axially will reduce pressure of central shaft.Sinking space can be arranged on the gear 101 near on the end face of exhaust cam 102, at this moment, needs be provided for selling 202 spacing cranses in groove along radially will reduce pressure of central shaft at central shaft; Preferably, above-mentioned sinking space can also be arranged on the end face that deviates from exhaust cam 102 on the gear 101, and decompression pin 202 passes pilot hole corresponding with it on the gear 101, is convenient to gear 101 and will reduce pressure and sell 202 radially spacing in groove along central shaft.
Further, in the motor that above-described embodiment provides, first side is arc surface, and second side is the plane; First side can also be set to non-circular-arc arc shaped surface, and second side does not exceed the arbitrary shape face outside the basic circle in the time of can being set to outside groove.Preferably, decompression pin 202 also comprises the 3rd side, and wherein, the 3rd side and second side axially arrange successively along decompression pin 202, and the 3rd side is connected with first side and forms arc surface, sells 202 and rotates so that reduce pressure.
Further, gear 101 comprises that the middle part is provided with the main body of sinking space and is positioned at the extension set of above-mentioned sinking space, and wherein, extension set is fixedlyed connected with main body, and it is sheathed and be fixed on the central shaft, for making gear 101 be securely fixed in central shaft; Above-mentioned extension set is provided with the groove corresponding with pilot hole, is convenient to ccontaining decompression pin 202.
In the motor that above-described embodiment provides, elastic reset spare is spring, and it pulls to central shaft with slide block 203; Accordingly, slide block 203 is provided with first mounting hole, gear 101 be provided with second mounting hole, the two ends of spring are hooked on respectively on above-mentioned first mounting hole and second mounting hole.Concrete, because the thickness of gear 101 is bigger, and the hook of both ends of the spring is less, so for the ease of the hook spring, first mounting hole is set to shoulder hole, the hook of spring is hooked on the one-level shoulder hole place of diameter minimum.Elastic reset spare can also be set to the bending spring of fixedlying connected with gear 101 with slide block 203 respectively in two ends, its slide block 203 push central shaft to.
Concrete, in the motor that above-described embodiment provides, sinking space is cylindric, can also be set to hold slide block 203 and be convenient to other arbitrary shape that slide block 203 slides.
The utility model embodiment also provides a kind of camshaft for motor, comprises central shaft, is fixed on the gear 101 on the central shaft and is fixed on exhaust cam 102 on the central shaft; Also comprise decompression pin 202, slide block 203 and elastic reset spare; Decompression pin 202 is rotationally in the groove at spacing basic circle place at exhaust cam 102, and it comprises second side that first side that deviates from bottom portion of groove can link to each other with described first side; Protrude outside the above-mentioned basic circle first side; Second side is near bottom portion of groove, and it is not higher than basic circle when going to outside groove, is positioned at groove when namely second side goes to outside groove; Slide block 203 is used for dialling commentaries on classics decompression pin 202 by centrifugal force, so that the bottom of groove is pressed close in first side, make second side outside groove, it is slidably disposed on first chute, 204 places on the gear 101, and which is provided with second chute that cooperates with the driving lever 201 that is fixed on decompression pin 202 ends; Elastic reset spare is fixedlyed connected with gear 101 with slide block 203 respectively.
Concrete, in the camshaft that above-described embodiment provides, decompression pin 202, slide block 203 and elastic reset spare respectively with motor that above-described embodiment provides in decompression pin 202, slide block 203 identical with elastic reset spare.
When the utility model embodiment carries camshaft and is used for being applied to motor, can assist to reduce and start the dynamo-electric rate of fault that starts.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and other embodiments' difference that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make related domain professional and technical personnel can realize or use the utility model.Multiple modification to these embodiments will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a motor comprises camshaft, and described camshaft has central shaft, be fixed on the gear on the described central shaft and be fixed on exhaust cam on the described central shaft; It is characterized in that, also comprise:
Decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises first side that deviates from described bottom portion of groove and second side that links to each other with described first side; Protrude outside the described basic circle described first side; Described second side is near described bottom portion of groove, and it is not higher than described basic circle when going to outside described groove;
Be used for dialling the described decompression pin of commentaries on classics by centrifugal force, and make described first side press close to the bottom of described groove, make the slide block of described second side outside described groove, it is slidably disposed on the first chute place on the described gear, and which is provided with second chute that cooperates with the driving lever that is fixed on described decompression pin end; With
The elastic reset spare that is connected with described gear with described slide block.
2. motor according to claim 1 is characterized in that, the end face of described gear is provided with sinking space, and described slide block is positioned at described sinking space.
3. motor according to claim 2 is characterized in that, also comprises the block that is fixed on the described gear, and described slide block is between described gear and described block.
4. motor according to claim 2 is characterized in that, described slide block is positioned at the place, side that described gear deviates from described exhaust cam, and described decompression pin passes described gear.
5. motor according to claim 4 is characterized in that, described slide block is provided with first mounting hole; Described elastic reset spare is spring (206), and the one end hook hangs over the described first mounting hole place, and the other end is hooked on the second mounting hole place on the described gear.
6. motor according to claim 2 is characterized in that, described second chute is positioned on the described slide block on the side of described exhaust cam.
7. motor according to claim 2 is characterized in that, described sinking space is cylindric.
8. motor according to claim 7 is characterized in that, described gear is provided with the through hole that is communicated with described sinking space.
9. a camshaft that is used for motor comprises central shaft and the camshaft that is fixed on the gear on the described central shaft; Described gear is near the exhaust cam that is fixed on the described central shaft; It is characterized in that, also comprise:
Decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises first side that deviates from described bottom portion of groove and second side that links to each other with described first side; Protrude outside the described basic circle described first side; Described second side is near described bottom portion of groove, and it is not higher than described basic circle when going to outside described groove;
Be used for stirring described decompression pin rotation by centrifugal force, and make described first side press close to the bottom of described groove, make the slide block of described second side outside described groove, it is slidably disposed on the first chute place on the described gear, and which is provided with second chute that cooperates with the driving lever that is fixed on described decompression pin end; With
The elastic reset spare that is connected with described gear with described slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220532323.1U CN203114367U (en) | 2012-10-17 | 2012-10-17 | Engine and camshaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220532323.1U CN203114367U (en) | 2012-10-17 | 2012-10-17 | Engine and camshaft thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114367U true CN203114367U (en) | 2013-08-07 |
Family
ID=48894726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220532323.1U Expired - Fee Related CN203114367U (en) | 2012-10-17 | 2012-10-17 | Engine and camshaft thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114367U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454073A (en) * | 2014-12-10 | 2015-03-25 | 重庆市银钢一通科技有限公司 | Engine and camshaft decompressor thereof |
| CN105628531A (en) * | 2015-12-30 | 2016-06-01 | 浙江理工大学 | Continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device |
-
2012
- 2012-10-17 CN CN201220532323.1U patent/CN203114367U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454073A (en) * | 2014-12-10 | 2015-03-25 | 重庆市银钢一通科技有限公司 | Engine and camshaft decompressor thereof |
| CN105628531A (en) * | 2015-12-30 | 2016-06-01 | 浙江理工大学 | Continuous type high-temperature and high-speed gas-solid two-phase flow erosion abrasion test device |
| CN105628531B (en) * | 2015-12-30 | 2018-07-31 | 浙江理工大学 | Continuous high-temperature high speed Dual-Phrase Distribution of Gas olid erosion abrasion test device |
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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 |
Owner name: SICHUAN SILVER STEEL YITONG CAMSHAFT CO., LTD. Free format text: FORMER NAME: SICHUAN YIN'GANG YITONG CAMSHAFT SHARES CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: District Street sub Industrial Park 638400 wusheng County Guang'an province industry of Sichuan Patentee after: SICHUAN YINGANG YITONG CAMSHAFT CO.,LTD. Address before: District Street sub Industrial Park 638400 wusheng County Guang'an province industry of Sichuan Patentee before: SICHUAN SILVER STEEL YITONG CAMSHAFT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20211017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |