CN202047875U - Cam overhead type valve rocker for valve actuating mechanism - Google Patents
Cam overhead type valve rocker for valve actuating mechanism Download PDFInfo
- Publication number
- CN202047875U CN202047875U CN2011200835328U CN201120083532U CN202047875U CN 202047875 U CN202047875 U CN 202047875U CN 2011200835328 U CN2011200835328 U CN 2011200835328U CN 201120083532 U CN201120083532 U CN 201120083532U CN 202047875 U CN202047875 U CN 202047875U
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- Prior art keywords
- rocker
- valve
- cam
- overhead type
- actuating mechanism
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- 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.)
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Abstract
The utility model discloses a cam overhead type valve rocker for a valve actuating mechanism, and belongs to the field of motor vehicle engine assembly manufacture. The cam overhead type valve rocker for the valve actuating mechanism is characterized in that: the rocker is arranged between an overhead cam and an air valve, a tail end of the rocker is fixed to a spherical surface connecting device through an air valve adjusting screw; the spherical surface connecting device comprises a spherical groove and a sphere, wherein the spherical groove is fixed to a cylinder head, the sphere is connected with the air valve adjusting screw; a contact-making surface of the rocker closing to the cam is provided with a thickening strip to ensure intensity and contact area of the rocker. The cam overhead type valve rocker for the valve actuating mechanism provided in the utility model can be widely applied to engines of motorcycles and automobiles, the rocker has simple structure and small size, thus friction loss can be reduced, transmission efficiency can be raised, and accuracy of valve timing can be effectively ensured.
Description
Technical field
The utility model relates to the assembly of motor car engine, relates in particular to a kind of valve rocker of cam overhead type distribution device.
Background technique
Distribution device is the control mechanism of motor inlet and outlet, requirement according to the job order and the working procedure of cylinder, periodically open and close the inlet and outlet door, Valve Rocker Organization is the important accessory of motor, valve rocker utilizes lever to press the switching of valve, thus in motor input air and discharge waste gas after burning.As shown in Figure 1, existing motorcycle rocking arm 1 ' is in cam 2 ' and valve 3 ' top, and cam 2 ' and valve 3 ' realize that by rocking arm 1 ' rotational transform of camshaft is the to-and-fro motion of valve 3 ' in the both sides of rocking arm 1 ', but existing rocking arm 1 ' volume is bigger, has increased cost.In addition, prior art is passed through rocker-arm roller pin 4 ' fixedly rocking arm 1 ' and rocking arm 1 ' generation frictional force, and especially in use for some time, the gap of contact position increases, and the wearing and tearing of aggravation contact position cause engine noise to increase, the frictional loss increase.
The model utility content
The model utility purpose: in order to overcome the deficiencies in the prior art, the utility model provides a kind of simple in structure, valve rocker that volume takies the cam overhead type distribution device little, that frictional loss is little.
Technological scheme: for achieving the above object, valve rocker of the present utility model is arranged between overhead cam and the valve, and the rocking arm tail end is fixed in the sphere connection set by valve adjuster.The nut of valve adjuster is arranged at the top of rocking arm tail end, can adjust the position of rocking arm.The upper surface of rocker head contacts with cam, and the lower surface of rocker head contacts with valve.When camshaft drove cam rotation, rocking arm swung up and down, and drove valve reciprocation.
Described sphere connection set comprises spherical groove and spheroid, and spherical groove is fixed in cylinder head, and spheroid is connected with the adjustment screw.
Described sphere connection set can also be a universal joint, preferably ball cage universal joint.
Described rocking arm is provided with near cam contact surface and thickens bar, and thickening bar one side cocoa effectively increases area of contact, also increases the intensity of rocking arm on the other hand, has reduced plastic deformation, guarantees that the contact position of rocker head and cam is accurate.Thereby guaranteed that valve timing is more accurate.
Beneficial effect: the valve rocker of the cam overhead type distribution device that the utility model provides can be widely used on the motor of motorcycle and automobile; the simple volume of rocker structure reduces; valve adjuster adopts the sphere ways of connecting, and the loss of can effectively reducing friction improves transmission efficiency.Adopt this structure can guarantee that valve timing is more accurate.
Description of drawings
Fig. 1 is the structural representation of rocking arm place distribution device in the prior art;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is the structural representation of the utility model sphere connection set.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in Figure 2, rocking arm 1 is arranged between cam 2 and the valve 3, and cam 2 adopts overhead type, and rocking arm 1 tail end is fixed in sphere connection set 5 by valve adjuster 4.The nut of valve adjuster 4 is arranged at the top of rocking arm 1 tail end, can adjust the position of rocking arm 1.Sphere connection set 5 comprises spherical groove 6 and spheroid 7, and spherical groove 6 is fixed in cylinder head, and spheroid 7 is connected with adjustment screw 4, by the scrolling realization axial motion in spherical groove 6, and reduces friction.Rocking arm 1 is provided with near cam contact surface and thickens bar 8, thickening bar 8 can effectively increase area of contact on the one hand, also increases the intensity of rocking arm 1 on the other hand, has reduced plastic deformation, the contact position of guaranteeing rocker head and cam 2 is more accurate, thereby has guaranteed that valve timing is more accurate.
When camshaft drove cam 2 rotations, rocking arm 1 fixedly swung up and down by an end of sphere connection set 5, drives valve 3 to-and-fro motion.
As preferred version of the present utility model, sphere connection set 5 can adopt universal joint, preferably ball cage universal joint.
The above only is a preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. the valve rocker of a cam overhead type distribution device, it is characterized in that: described rocking arm (1) is arranged between overhead cam (2) and the valve (3), and rocking arm (1) tail end is fixed in sphere connection set (5) by valve adjuster (4).
2. the valve rocker of cam overhead type distribution device according to claim 1, it is characterized in that: described sphere connection set (5) comprises spherical groove (6) and spheroid (7), spherical groove (6) is fixed in cylinder head, and spheroid (7) is connected with adjustment screw (4).
3. the valve rocker of cam overhead type distribution device according to claim 1 is characterized in that: described rocking arm (1) is provided with near cam contact surface and thickens bar (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200835328U CN202047875U (en) | 2011-03-28 | 2011-03-28 | Cam overhead type valve rocker for valve actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200835328U CN202047875U (en) | 2011-03-28 | 2011-03-28 | Cam overhead type valve rocker for valve actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202047875U true CN202047875U (en) | 2011-11-23 |
Family
ID=44988186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200835328U Expired - Lifetime CN202047875U (en) | 2011-03-28 | 2011-03-28 | Cam overhead type valve rocker for valve actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202047875U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121407A (en) * | 2011-03-28 | 2011-07-13 | 南京金城机械有限公司 | Valve rocker of overhead cam type valve mechanism |
| CN105179038A (en) * | 2015-10-30 | 2015-12-23 | 绵阳富临精工机械股份有限公司 | Low-rotational-inertia valve rocker |
-
2011
- 2011-03-28 CN CN2011200835328U patent/CN202047875U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121407A (en) * | 2011-03-28 | 2011-07-13 | 南京金城机械有限公司 | Valve rocker of overhead cam type valve mechanism |
| CN105179038A (en) * | 2015-10-30 | 2015-12-23 | 绵阳富临精工机械股份有限公司 | Low-rotational-inertia valve rocker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201116 Address after: Jiangning District Lake Industrial Zone Shu Zhen Road Nanjing City, Jiangsu Province, Raj 211121 No. 518 Patentee after: Nanjing Jincheng Machinery Co.,Ltd. Patentee after: Jincheng Group Co.,Ltd. Address before: 210002 No. 518 East Zhongshan Road, Jiangsu, Nanjing Patentee before: Nanjing Jincheng Machinery Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |