CN202832684U - Engine and camshaft thereof - Google Patents
Engine and camshaft thereof Download PDFInfo
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- CN202832684U CN202832684U CN201220532406.0U CN201220532406U CN202832684U CN 202832684 U CN202832684 U CN 202832684U CN 201220532406 U CN201220532406 U CN 201220532406U CN 202832684 U CN202832684 U CN 202832684U
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Abstract
The utility model discloses an engine. The engine comprises a camshaft, wherein the camshaft comprises a center shaft, a wheel gear which is fixed on the center shaft, and an exhaust cam which is fixed on the center shaft. The engine further comprises a reduced pressure pin, a bent block, and an elastic recovered part, wherein the reduced pressure pin can be rotationally limited in a groove of a base circle of the exhaust cam, and the engine comprises a first side which deviates from the bottom of the groove and a second side which is connected with the first side. The first side bulges out of the base circle. The second side is close to the bottom of the groove, and the second side cannot be higher than the base circle when the second side rotates towards the outside of the groove. One end of the bent block is rotatable placed on the wheel gear, the other end of the bent block is provided with a spout which matches with a driving lever to be used for driving the driving lever to enable the first side to be close to the bottom of the groove and enable the second side to face outside of the groove, and the driving level is fixed on the reduced pressure pin. The elastic part is fixedly connected with the bent block and the wheel gear. The engine further provides the camshaft. The camshaft can assistantly reduce failure rate of the engine starting.
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 opening and closing that is 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 large discharge capacity, and still, the engine cylinder internal pressure of large discharge capacity is larger, and the burden of magnetogenerator is large in the electric start-up course, and the frequency that it breaks down is high.
In addition, the in-cylinder pressure of large-duty engine that is applied to motorcycle is larger, causes motorcycle pin difficulty in starting.
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:
The decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises the first side that deviates from described bottom portion of groove and the second side that links to each other with described the first side; Protrude outside the described basic circle described the first side; Described the 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 driving described decompression pin rotation by centrifugal force, and make described the first side press close to the bottom of described groove, make outside described groove curved of described the second side, it is arranged on the described gear rotationally by an end, its other end be provided be fixed on described decompression pin on the chute that cooperates of driving lever; With
With described curved be connected the elastic reset spare that gear is connected.
Preferably, in the above-mentioned motor, the end face of described gear is provided with sinking space, and described curved is positioned at described sinking space.
Preferably, in the above-mentioned motor, described curved 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 curved is provided with mounting hole; Described elastic reset spare is spring, and the one end hook hangs over described mounting hole place, and the other end is fixed on the described gear.
Preferably, in the above-mentioned motor, described chute is positioned at described curved and goes up 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.
Preferably, in the above-mentioned motor, described curved is arranged on the described gear rotationally by the second rivet.
A kind of camshaft for motor comprises central shaft, is fixed on the gear on the described central shaft and is fixed on exhaust cam on the central shaft; Also comprise:
The decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises the first side that deviates from described bottom portion of groove and the second side that links to each other with described the first side; Protrude outside the described basic circle described the first side; Described the 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 driving described decompression pin rotation by centrifugal force, and make described the first side press close to the bottom of described groove, make outside described groove curved of described the second side, it is arranged on the described gear rotationally by an end, its other end be provided be fixed on described decompression pin on the chute that cooperates of driving lever; With
With described curved be connected the elastic reset spare that gear is connected.
The motor that the utility model provides comprises camshaft, 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, curved and elastic reset spare, wherein, in the groove at spacing basic circle place at exhaust cam, it comprises the first side that deviates from bottom portion of groove and the second side that links to each other with above-mentioned the first side rotationally for decompression pin; Protrude outside the basic circle the first side; The second side is near the bottom of groove, and it is not higher than basic circle when going to outside groove; Curved is arranged on the gear by the one end rotationally, its the other end be provided be fixed on decompression pin on the chute that cooperates of driving lever, curved is used for stirring above-mentioned driving lever by centrifugal force, so that the rotation of decompression pin, make the first side press close to the bottom of groove, make the second side outside groove; Elastic reset spare is connected with gear with curved.
During work, motor centrifugal force when beginning to start is less, curved is rotated with camshaft under the effect of elastic reset spare, decompression pin is kept motionless or fine rotation, and protrude outside the basic circle the 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, curved centrifugal force becomes large and surpasses the restoring force of elastic reset spare, curved corresponding gear rotates, and stir driving lever, driving lever drives the rotation of decompression pin, makes the first side press close to the bottom of groove, and the second side is towards the slot opening place, the decompression pin is inoperative to push rod corresponding to exhaust cam, the exhaust casing normal exhaust; During engine misses, curved centrifugal force reduces, and its next time redoubling of effect at elastic reset spare reverses 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, the failure rate is low that electricity starts.
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 the motor that the utility model provides, and can assist 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, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes 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 according to these accompanying drawings other accompanying drawing.
The structural representation of the camshaft that is used for motor that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the sectional view of K-K among Fig. 1;
The structural representation of the exhaust cam that Fig. 3 provides for the utility model embodiment;
Fig. 4 is the sectional view of H-H among Fig. 3;
Curved of providing for the utility model embodiment of Fig. 5 faces structural representation;
The curved back of the body TV structure schematic representation that Fig. 6 provides for the utility model embodiment;
The curved side-looking structural representation that Fig. 7 provides for the utility model embodiment;
The structural representation of the second rivet that Fig. 8 provides for the utility model embodiment;
The gear that Fig. 9 provides for the utility model embodiment face structural representation;
The back of the body TV structure schematic representation of the gear that Figure 10 provides for the utility model embodiment;
Figure 11 is the sectional view of J-J among Figure 10;
Figure 12 is driving lever and the erection drawing that reduces pressure and sell;
Figure 13 is that the A of Figure 12 is to view;
Figure 14 is the plan view of Figure 12;
Wherein, among Fig. 1-Figure 14:
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-Figure 14, the motor that the utility model embodiment provides comprises camshaft, camshaft has central shaft 104, be fixed on the gear 103 on the above-mentioned central shaft 104 and be fixed on exhaust cam on the above-mentioned central shaft 104, also comprising decompression pin 102, curved 105 and elastic reset spare 108; Decompression pin 102 is rotationally in the groove at spacing basic circle place at exhaust cam, and it comprises the second side that the first side of deviating from bottom portion of groove can link to each other with described the first side; Protrude outside the above-mentioned basic circle the first side; The 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 the second side goes to outside groove; Be arranged on rotationally on the gear 103 by the one end for curved 105, its the other end is free end, free end be provided be fixed on described decompression pin 102 on the chute that cooperates of driving lever 101, be used for for curved 105 stirring above-mentioned driving lever 101 by centrifugal force, and make the first side press close to the bottom of groove, make the second side outside groove; Elastic reset spare 108 is fixedly connected with gear 103 with curved 105 respectively.
During work, motor centrifugal force when beginning to start is less, under the effect of elastic reset spare 108, rotate with camshaft for curved 105, decompression pin 102 is kept motionless or fine rotation, and protrude outside the basic circle the first side on the decompression pin 102, 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, curved 105 centrifugal force becomes large and surpasses the restoring force of elastic reset spare 108, curved 105 corresponding gears 103 rotate, and stir driving lever 101, driving lever 101 drives 102 rotations of decompression pin, makes the first side press close to the bottom of groove, and the second side is towards the slot opening place, the push rod that 102 pairs of exhaust cams of decompression pin are corresponding is inoperative, the exhaust casing normal exhaust; During engine misses, curved 105 centrifugal force reduces, and its next time redoubling of effect at elastic reset spare 108 reverses original position with driving lever 101, and decompression pin 102 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, the failure rate is low that electricity starts.
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, curved 105 free end is pushed or pulled to elastic reset spare 108 to central shaft 104.Concrete, curved 105 be set to by its fixed end consistent with the sense of rotation of gear 103 to free-ended direction, as shown in the figure; Can also be set to for curved 105 by its free end consistent with the sense of rotation of gear 103 to the direction of fixed end.
Concrete, in the motor that above-described embodiment provides, the end face of gear 103 is provided with sinking space, and curved 105 is positioned at above-mentioned sinking space.In the motor that present embodiment provides, curved 105 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, groove is open-minded near an end of gear 103, and the other end is near the middle part of exhaust cam; Chute is arranged on curved 105 towards the side of exhaust cam, and the end of curved 105 and groove is spacing in groove along the pin 102 that axially will reduce pressure of central shaft 104.Sinking space can be arranged on the gear 103 near on the end face of exhaust cam, at this moment, needs be provided for selling 102 spacing cranses in groove along radially will reduce pressure of central shaft 104 at central shaft 104; Preferably, above-mentioned sinking space can also be arranged on the end face that deviates from exhaust cam on the gear 103, and decompression pin 102 passes pilot hole corresponding with it on the gear 103, is convenient to gear 103 and will reduce pressure and sell 102 radially spacing in groove along central shaft 104.
Further, in the motor that above-described embodiment provides, the first side is arc surface, and the second side is the plane; The first side can also be set to non-circular-arc arc shaped surface, and the 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 102 also comprises the 3rd side, and wherein, the 3rd side and the second side axially arrange successively along decompression pin 102, and the 3rd side is connected with the first side and forms arc surface, sells 102 and rotates so that reduce pressure.
Further, gear 103 comprises that the middle part is provided with the main body and the extension set that is positioned at above-mentioned sinking space of sinking space, and wherein, extension set is fixedly connected with main body, it is sheathed and be fixed on the central shaft 104, is used for making gear 103 be securely fixed in central shaft 104; Above-mentioned extension set is provided with the groove corresponding with pilot hole, is convenient to accommodating decompression pin 102.
In the motor that above-described embodiment provides, elastic reset spare 108 is spring, and it holds curved 105, and curved 105 free end is pulled to central shaft 104; Accordingly, curved 105 is provided with mounting hole 51, and the main body of gear 103 is provided with the first rivet 107, and the two ends of spring are hooked on respectively on above-mentioned mounting hole 51 and the first rivet 107.Concrete, because the thickness of main body is larger, and the hook of both ends of the spring is less, so for the ease of the hook spring, mounting hole 51 is set to shoulder hole, the hook of spring is hooked on the one-level shoulder hole place of diameter minimum.Elastic reset spare 108 can also be set to two ends respectively with curved 105 bending spring that is fixedly connected with gear 103, it pushes away curved 105, and pushes curved 105 free end to central shaft 104.
Concrete, in the motor that above-described embodiment provides, curved 105 is arranged on the gear 103 rotationally by fixed block.Above-mentioned fixing piece can be set to the second rivet 106 or bolt etc.
Concrete, in the motor that above-described embodiment provides, sinking space is cylindric, other arbitrary shape that can also be set to hold curved 105 and be convenient to curved 105 rotation.
Further, in the motor that above-described embodiment provides, also be provided with the through hole that is communicated with upper sinking space on the main body of gear 103, so that alleviate the weight of gear 103.
The utility model embodiment also provides a kind of camshaft for motor, comprises central shaft 104, is fixed on the gear 103 on the central shaft 104 and is fixed on exhaust cam on the central shaft 104; Also comprising decompression pin 102, curved 105 and elastic reset spare 108, wherein, decompression pin 102 is rotationally in the groove at spacing basic circle place at exhaust cam, and it comprises the second side that the first side of deviating from bottom portion of groove can link to each other with described the first side; Protrude outside the above-mentioned basic circle the first side; The 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 the second side goes to outside groove; Be arranged on rotationally on the gear 103 by the one end for curved 105, its the other end is free end, free end be provided be fixed on described decompression pin 102 on the chute that cooperates of driving lever 101, be used for for curved 105 stirring above-mentioned driving lever 101 by centrifugal force, and make the first side press close to the bottom of groove, make the second side outside groove; Elastic reset spare 108 is fixedly connected with gear 103 with curved 105 respectively.
Concrete, the decompression pin 102 in decompression pin 102 in the camshaft that the utility model embodiment provides, curved 105 and elastic reset spare 108 and the above-mentioned motor, distinguish identical with elastic reset spare 108 for curved 105.
When the utility model embodiment carries camshaft and is 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 General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiments shown in this article, but will meet the widest 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:
The decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises the first side that deviates from described bottom portion of groove and the second side that links to each other with described the first side; Protrude outside the described basic circle described the first side; Described the 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 driving described decompression pin rotation by centrifugal force, and make described the first side press close to the bottom of described groove, make outside described groove curved of described the second side, it is arranged on the described gear rotationally by an end, its other end be provided be fixed on described decompression pin on the chute that cooperates of driving lever; With
With described curved be connected the elastic reset spare that gear is connected.
2. motor according to claim 1 is characterized in that, the end face of described gear is provided with sinking space, and described curved is positioned at described sinking space.
3. motor according to claim 2 is characterized in that, described curved is positioned at the place, side that described gear deviates from described exhaust cam, and described decompression pin passes described gear.
4. motor according to claim 3 is characterized in that, described curved is provided with mounting hole; Described elastic reset spare is spring, and the one end hook hangs over described mounting hole place, and the other end is fixed on the described gear.
5. motor according to claim 2 is characterized in that, described chute is positioned at described curved and goes up on the side of described exhaust cam.
6. motor according to claim 2 is characterized in that, described sinking space is cylindric.
7. motor according to claim 6 is characterized in that, described gear is provided with the through hole that is communicated with described sinking space.
8. the described motor of any one is characterized in that according to claim 1-7, and described curved is arranged on the described gear rotationally by the second rivet.
9. camshaft that is used for motor comprises central shaft, is fixed on the gear on the described central shaft and is fixed on exhaust cam on the central shaft; It is characterized in that, also comprise:
The decompression pin in the groove at spacing basic circle place at described exhaust cam rotationally, it comprises the first side that deviates from described bottom portion of groove and the second side that links to each other with described the first side; Protrude outside the described basic circle described the first side; Described the 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 driving described decompression pin rotation by centrifugal force, and make described the first side press close to the bottom of described groove, make outside described groove curved of described the second side, it is arranged on the described gear rotationally by an end, its other end be provided be fixed on described decompression pin on the chute that cooperates of driving lever; With
With described curved be connected the elastic reset spare that gear is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220532406.0U CN202832684U (en) | 2012-10-17 | 2012-10-17 | Engine and camshaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220532406.0U CN202832684U (en) | 2012-10-17 | 2012-10-17 | Engine and camshaft thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832684U true CN202832684U (en) | 2013-03-27 |
Family
ID=47944416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220532406.0U Expired - Fee Related CN202832684U (en) | 2012-10-17 | 2012-10-17 | Engine and camshaft thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389650A (en) * | 2014-12-10 | 2015-03-04 | 重庆市银钢一通科技有限公司 | Engine and cam shaft device thereof |
-
2012
- 2012-10-17 CN CN201220532406.0U patent/CN202832684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389650A (en) * | 2014-12-10 | 2015-03-04 | 重庆市银钢一通科技有限公司 | Engine and cam shaft device thereof |
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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: 20130327 Termination date: 20211017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |