CN203430590U - Motorcyle engine rocker assembly - Google Patents
Motorcyle engine rocker assembly Download PDFInfo
- Publication number
- CN203430590U CN203430590U CN201320481952.0U CN201320481952U CN203430590U CN 203430590 U CN203430590 U CN 203430590U CN 201320481952 U CN201320481952 U CN 201320481952U CN 203430590 U CN203430590 U CN 203430590U
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- Prior art keywords
- rocking arm
- rocker
- arm
- connecting head
- cam
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000008041 oiling agent Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a motorcycle engine rocker assembly, belonging to the technical field of engines and solving the problem that the wear between an existing engine rocker assembly and an engine cam is relatively serious. The motorcycle engine rocker assembly comprises a rocker base as well as two rocker shafts and two rockers which are arranged on the rocker base, wherein the middle of each rocker is provided with a shaft hole, each rocker shaft penetrates through the corresponding shaft hole, one end of each rocker arm is a connecting part I which is in contact with the engine cam, the other end of each rocker arm is a connecting part II connected with an air valve, the connecting parts I of the two rockers are oppositely arranged, through holes through which the engine cams penetrate are formed in corresponding positions of the two connecting parts I on the rocker base, and an idler wheel is respectively arranged on each of the connecting parts I. According to the motorcycle engine rocker assembly, the rockers are in direct contact with the engine cam, so that the structure is relatively simple; in addition, the idler wheels are arranged on the connecting parts I, so that the wear between the rocker assembly and the engine cam is reduced, and thus the rocker assembly is relatively stable to operate.
Description
Technical field
The utility model belongs to technical field of engines, relates to a kind of rocking arm, particularly a kind of motorcycle engine rocket arm assembly.
Background technique
Valve Rocker Organization is the indispensable important mechanism of explosive motor.When engine crankshaft rotates, cam also starts rotation, has the projection correspondence in many inclined to one side centers of circle each rocking arm on cam, and rocking arm is corresponding valve again.When projection forwards when below to, below valve rocker or hydraulic tappet will move under pressure, then cam is passed to the power of coming and is transmitted to again valve.At this moment, valve moves downward under the effect of pressure, completes and opens cylinder intake passage or exhaust passage.When the projection process half-turn motion on cam turns to top, valve can upwards rise under the reaction force of valve spring, completes the work of closing gas-entered passageway or exhaust passage.
For example, Chinese utility model patent (application number: 201120359481.7, notice of authorization number: CN202578811U) disclose a kind of loss of weight engine valve rocker arm structure, comprise by the rotational axis hole rocking arm body that moving axis rotates that rotates, rocking arm body is comprised of with the valve termination of controlling valve folding the valve rocker cam termination that contacts the cam of camshaft, the rocking arm body being comprised of gentle door termination, valve rocker cam termination is L-shaped, between the back of valve rocker cam termination of non-contact cam and the rotational axis hole of rocking arm body, it is transitional surface, the valve rocker cam termination of rocking arm body is under the effect of camshaft running power, drive rocking arm body rotate and drive valve termination in time to open valve, complete air inlet and the exhaust of motor.The smooth arc-shaped transitional surface of transitional surface for arranging between the back of valve rocker cam termination of non-contact cam and the rotational axis hole of rocking arm body.
But in this valve rocker; rocking arm is by valve rocker cam termination and the stressed transmission of engine cam; they are sliding friction between the two; make the wearing and tearing between valve rocker cam termination and motor comparatively serious; to be prone to abnormal sound in rocking arm working procedure, thereby make valve rocker job insecurity.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed the motorcycle engine rocket arm assembly that a kind of structure is comparatively stable.
The purpose of this utility model can realize by following technical proposal: a kind of motorcycle engine rocket arm assembly, comprise rocking arm base, be arranged on two pitman arm shafts and two rocking arms on rocking arm base, described rocking arm middle part has axis hole, described pitman arm shaft is through axis hole, one end of described rocking arm is the joint one for contacting with engine cam, the other end of rocking arm is the joint two for being connected with valve, the joint one of two rocking arms is established in opposite directions, on described rocking arm base, two joint one relevant positions, offer the through hole passing for engine cam, it is characterized in that, on described joint one, be equipped with roller.
Owing to being provided with the roller contacting with cam in this Rocker arm assembly, avoided the problem of the larger wearing and tearing that between original cam and rocking arm, sliding friction brings, make between rocking arm and cam contact more level and smooth.During work, the cam pair roller application of force, in the contact process of cam and roller, roller rotates, and makes the frictional force between rocking arm and cam less.In addition, rocking arm directly contacts with engine cam, and its structure is comparatively simple.
In above-mentioned motorcycle engine rocket arm assembly, on described joint two, be threaded and be useful on the adjusting bolt being connected with valve, the upper end of the described adjusting bolt nut that has been threaded.On joint two, adjusting bolt is set, is convenient to the spacing between adjusting rock arm and joint two, it regulates more for convenience.
In above-mentioned motorcycle engine rocket arm assembly, on described axis hole, offer the lubricated through hole that is communicated with axis hole and outside.On axis hole, offer lubricated through hole, be convenient to increases oiling agent in axis hole, thereby makes the operation of this Rocker arm assembly more stable.
In above-mentioned motorcycle engine rocket arm assembly, on described rocking arm base, be fixed with the connecting head of two pairs of protrusions, be respectively and connect first and connecting head two, connecting head three and connecting head four, a rocking arm is arranged on and connects between first and connecting head two, another rocking arm is arranged between connecting head three and connecting head four, and on the first and connecting head three of described connection, being all threaded to be useful on is connected in the bolt on rocking arm base by corresponding rocking arm.Such structure, makes the annexation of pitman arm shaft and rocking arm base more stable.
In above-mentioned motorcycle engine rocket arm assembly, on described joint one, all there is the yoke of two protrusions, on described yoke, be fixed with roller shaft, described roller is hinged on roller shaft.All be connected on each joint one yoke of two protrusions, roller is arranged between yoke, makes the structure of this Rocker arm assembly comparatively firm.
In above-mentioned motorcycle engine rocket arm assembly, between described pitman arm shaft and rocking arm, be provided with ball, between described roller shaft and roller, be provided with ball.Set up ball, make the operation of this Rocker arm assembly more stable.
Compared with prior art, in this motorcycle engine rocket arm assembly, rocking arm directly contacts with engine cam, and its structure is comparatively simple; In addition, on joint one, roller is set, has reduced the wearing and tearing between this Rocker arm assembly and engine cam, thus more stable while making the operation of this Rocker arm assembly.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of this motorcycle engine rocket arm assembly;
Fig. 2 is the structural representation of facing of this motorcycle engine rocket arm assembly.
In figure, 1, rocking arm base; 2, pitman arm shaft; 3, rocking arm; 3a, axis hole; 3b, lubricated through hole; 4, joint one; 4a, yoke; 4b, roller shaft; 5, joint two; 6, through hole; 7a, connect first; 7b, connecting head two; 7c, connecting head three; 7d, connecting head four; 8, adjusting bolt; 9, nut; 10, roller; 11, bolt.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, a kind of motorcycle engine rocket arm assembly, comprise rocking arm base 1, be arranged on two pitman arm shafts 2 and two rocking arms 3 on rocking arm base 1, rocking arm 3 middle parts have axis hole 3a, offer the lubricated through hole 3b that is communicated with axis hole 3a and outside on axis hole 3a.On axis hole 3a, offer lubricated through hole 3b, be convenient to increases oiling agent in axis hole 3a, thereby makes the operation of this Rocker arm assembly more stable.
On rocking arm base 1, be fixed with the connecting head of two pairs of protrusions, be respectively and connect first 7a and connecting head two 7b, connecting head three 7c and connecting head four 7d, a rocking arm 3 is arranged on and connects between first 7a and connecting head two 7b, another rocking arm 3 is arranged between connecting head three 7c and connecting head four 7d, and connecting is all threaded to be useful on first 7a and connecting head three 7c is connected in the bolt 11 on rocking arm base 1 by corresponding rocking arm 3.Such structure, makes pitman arm shaft 2 more stable with the annexation of rocking arm base 1.
Pitman arm shaft 2, through axis hole 3a, is provided with ball between pitman arm shaft 2 and rocking arm 3.
One end of rocking arm 3 is the joint 1 for contacting with engine cam; the other end of rocking arm 3 is the joint 25 for being connected with valve; the joint 1 of two rocking arms 3 is established in opposite directions, offers the through hole 6 passing for engine cam on rocking arm base 1 two joint one 4 relevant positions.
The yoke 4a all on joint 1 with two protrusions, is fixed with roller shaft 4b on yoke 4a, it is upper that roller 10 is hinged on roller shaft 4b, between roller shaft 4b and roller 10, is provided with ball.All be connected on each joint 1 yoke 4a of two protrusions, roller 10 is arranged between yoke 4a, makes the structure of this Rocker arm assembly comparatively firm.On joint 25, be threaded and be useful on the adjusting bolt 8 being connected with valve, the upper end of adjusting bolt 8 nut 9 that has been threaded.Adjusting bolt 8 is set on joint 25, is convenient to the spacing between adjusting rock arm 3 and joint 25, it regulates more for convenience.
Owing to being provided with the roller 10 contacting with cam in this Rocker arm assembly, avoided the problem of the larger wearing and tearing that between original cam and rocking arm 3, sliding friction brings, make between rocking arm 3 and cam contact more level and smooth.During work, cam pair roller 10 application of forces, in the contact process of cam and roller 10, roller 10 rotates, and makes the frictional force between rocking arm 3 and cam less.In addition, rocking arm 3 directly contacts with engine cam, and its structure is comparatively simple.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used 1 herein, rocking arm base 1, pitman arm shaft 2, rocking arm 3, axis hole 3a, lubricated through hole 3b, joint 1, yoke 4a, roller shaft 4b, joint 25, through hole 6, connected the terms such as first 7a, connecting head two 7b, connecting head three 7c, connecting head four 7d, adjusting bolt 8, nut 9, roller 10, bolt 11, do not got rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. a motorcycle engine rocket arm assembly, comprise rocking arm base (1), be arranged on two pitman arm shafts (2) and two rocking arms (3) on rocking arm base (1), described rocking arm (3) middle part has axis hole (3a), described pitman arm shaft (2) is through axis hole (3a), one end of described rocking arm (3) is the joint one (4) for contacting with engine cam, the other end of rocking arm (3) is the joint two (5) for being connected with valve, the joint one (4) of two rocking arms (3) is established in opposite directions, the upper through hole (6) passing for engine cam that offers in two joints, one (4) relevant position of described rocking arm base (1), it is characterized in that, on described joint one (4), be equipped with roller (10).
2. motorcycle engine rocket arm assembly according to claim 1, it is characterized in that, on described joint two (5), be threaded and be useful on the adjusting bolt (8) being connected with valve, the upper end of described adjusting bolt (8) nut (9) that has been threaded.
3. motorcycle engine rocket arm assembly according to claim 1 and 2, is characterized in that, offers the lubricated through hole (3b) that is communicated with axis hole (3a) and outside on described axis hole (3a).
4. motorcycle engine rocket arm assembly according to claim 1 and 2, it is characterized in that, on described rocking arm base (1), be fixed with the connecting head of two pairs of protrusions, be respectively and connect first (7a) and connecting head two (7b), connecting head three (7c) and connecting head four (7d), a rocking arm (3) is arranged on and connects between first (7a) and connecting head two (7b), another rocking arm (3) is arranged between connecting head three (7c) and connecting head four (7d), on described connection first (7a) and connecting head three (7c), be all threaded to be useful on corresponding rocking arm (3) is connected in to the bolt (11) on rocking arm base (1).
5. motorcycle engine rocket arm assembly according to claim 1 and 2, it is characterized in that, the yoke (4a) all on described joint one (4) with two protrusions, on described yoke (4a), be fixed with roller shaft (4b), described roller (10) is hinged on roller shaft (4b).
6. motorcycle engine rocket arm assembly according to claim 5, is characterized in that, between described pitman arm shaft (2) and rocking arm (3), is provided with ball, between described roller shaft (4b) and roller (10), is provided with ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481952.0U CN203430590U (en) | 2013-08-07 | 2013-08-07 | Motorcyle engine rocker assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481952.0U CN203430590U (en) | 2013-08-07 | 2013-08-07 | Motorcyle engine rocker assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430590U true CN203430590U (en) | 2014-02-12 |
Family
ID=50059635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320481952.0U Expired - Fee Related CN203430590U (en) | 2013-08-07 | 2013-08-07 | Motorcyle engine rocker assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430590U (en) |
-
2013
- 2013-08-07 CN CN201320481952.0U patent/CN203430590U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140212 |