CN203655377U - Cam shaft structure - Google Patents
Cam shaft structure Download PDFInfo
- Publication number
- CN203655377U CN203655377U CN201320742200.5U CN201320742200U CN203655377U CN 203655377 U CN203655377 U CN 203655377U CN 201320742200 U CN201320742200 U CN 201320742200U CN 203655377 U CN203655377 U CN 203655377U
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- CN
- China
- Prior art keywords
- camshaft
- camshaft body
- cam shaft
- shrinkage pool
- eccentric wheel
- 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
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- Valve Device For Special Equipments (AREA)
Abstract
The utility model discloses a cam shaft structure which comprises a cam shaft body. One end of the cam shaft body is provided with concave holes enabling a motor shaft to be inserted into. The number of the concave holes is two and the concave holes are vertically and symmetrically arranged. The cam shaft body is located at one end of each concave hole and a first bearing base is arranged on the portion, close to the concave holes, of the cam shaft body. The first bearing base is buckled to the cam shaft body through a key. The cam shaft structure further comprises a second bearing base. The second bearing base is buckled with the cam shaft body through a key. A first bearing and a second bearing are connected to the inner portion of the first bearing base and the inner portion of the second bearing base respectively in a sealing mode. An eccentric wheel is arranged between the first bearing base and the second bearing base and located on the upper end face of the cam shaft body. A groove is formed in the portion, corresponding to the eccentric wheel, of the cam shaft body and the eccentric wheel is located in the groove. When the torque force is borne by the cam shaft structure, the turning-resistant function can be achieved, good lubrication can be achieved, the heat-dissipating effect is improved, abrasion of the operation face of a tappet is reduced, certain adjustment of the cam shaft structure can be achieved, in addition, stability is improved, and the service life is prolonged when a cam shaft is used.
Description
Technical field
The utility model relates to a kind of mechanical part, particularly a kind of camshaft structure.
Background technique
Camshaft is a vitals in piston engine, its effect is the opening and closing of controlling valve, although the rotating speed of camshaft is the half of bent axle in four stroke engine, but conventionally need to bear very large moment of torsion, therefore need requirement camshaft intensity and support performance to want high, because valve motion rule is related to power and the service performance of a motor, therefore in occupation of consequence very, and in use, wear and tear larger, so just cause replacing more frequent, and consume greatly fuel oil, energy shortage problem is day by day serious in recent years, raw material and oil price rise steadily, so just be unfavorable for energy conservation, therefore, the Economy of improving motor under the prerequisite that ensures engine performance seems very important, reducing friction is also a problem must considering while designing camshaft.
Model utility content
The technical problems to be solved in the utility model is: overcome the problems referred to above, a kind of effect that can play anti-rotation is provided, and can obtain good lubricated camshaft structure.
To achieve these goals, the technical solution adopted in the utility model is such: camshaft structure of the present utility model, comprise camshaft body, camshaft body one end is provided with the shrinkage pool that power supply machine rotating shaft is inserted, shrinkage pool is two, it is symmetrical arranged up and down, camshaft body is positioned at one end of shrinkage pool and is provided with clutch shaft bearing seat near shrinkage pool, clutch shaft bearing seat is bonded on camshaft body, also comprise the second bearing support, the second bearing support and camshaft body bonding, in clutch shaft bearing seat and the second bearing support, be all sealedly connected with clutch shaft bearing and the second bearing, between clutch shaft bearing seat and the second bearing support and be positioned at camshaft body upper-end surface and be provided with eccentric wheel, the corresponding eccentric wheel of camshaft body place has groove, eccentric wheel is placed in groove, and be fixed on camshaft body by stationary axle, and slidably, the relative shrinkage pool of camshaft body one end is provided with key tooth, key tooth and camshaft body mechanical connection, camshaft body is provided with annular oil groove near key tooth upper end, annular oil groove bottom communicates with camshaft body middle part, camshaft body is provided with eccentric shaft near annular oil groove one side, eccentric shaft is rigidly connected by perforate on camshaft body and camshaft body.
Further, as a kind of concrete structural type, the width of annular oil groove described in the utility model is 8-10 millimeter.
Further, as a kind of concrete structural type, one end that camshaft body described in the utility model is positioned at shrinkage pool is also provided with screw.
Further, as a kind of concrete structural type, on camshaft body described in the utility model, be also provided with back shaft, back shaft is between clutch shaft bearing seat and eccentric wheel.
Compared with prior art, the utility model has the advantage of: camshaft structure of the present utility model can play the effect of anti-rotation in the time bearing warping force, and can obtain good lubricating, improve radiating effect, the wearing and tearing of tappet working surface are reduced, can carry out certain adjustment to it, improved in addition stability and working life in the time using this camshaft simultaneously.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model;
In figure: 1. shrinkage pool, 2. clutch shaft bearing seat, 3. back shaft, 4. eccentric wheel, 5. the second bearing support, 6. eccentric shaft, 7. annular oil groove, 8. key tooth, 9. camshaft body.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
The preferred embodiment of the utility model camshaft structure as shown in Figure 1, comprise camshaft body 9, camshaft body 9 one end are provided with the shrinkage pool 1 that power supply machine rotating shaft is inserted, shrinkage pool 1 is two, it is symmetrical arranged up and down, camshaft body 9 is positioned at one end of shrinkage pool 1 and is provided with clutch shaft bearing seat 2 near shrinkage pool 1, clutch shaft bearing seat 2 is bonded on camshaft body 9, also comprise the second bearing support 5, the second bearing support 5 and camshaft body 9 bondings, interior clutch shaft bearing and the second bearing of being all sealedly connected with of clutch shaft bearing seat 2 and the second bearing support 5, between clutch shaft bearing seat 2 and the second bearing support 5 and be positioned at camshaft body 9 upper-end surfaces and be provided with eccentric wheel 4, the corresponding eccentric wheel of camshaft body 94 places have groove, eccentric wheel 4 is placed in groove, and be fixed on camshaft body 9 by stationary axle, and slidably, camshaft body 9 relative shrinkage pool 1 one end are provided with key tooth 8, key tooth 8 and camshaft body 9 mechanical connections, camshaft body 9 is provided with annular oil groove 7 near key tooth 8 upper end, annular oil groove 7 bottoms communicate with camshaft body 9 middle parts, camshaft body 9 is provided with eccentric shaft 6 near annular oil groove 7 one sides, eccentric shaft 6 is rigidly connected by perforate on camshaft body 9 and camshaft body 9, the width of described annular oil groove 7 is 8-10 millimeter, one end that described camshaft body 9 is positioned at shrinkage pool 1 is also provided with screw, on described camshaft body 9, be also provided with back shaft 3, back shaft 3 is between clutch shaft bearing seat 2 and eccentric wheel 4.
The utility model can play the effect of anti-rotation in the time bearing warping force, and can obtain good lubricating, improve radiating effect, reduce the wearing and tearing of tappet working surface, can carry out certain adjustment to it, improved in addition stability and working life in the time using this camshaft simultaneously.The width of annular oil groove 7 is 8-10 millimeter, oil impregnate better effects if; One end that camshaft body 9 is positioned at shrinkage pool 1 is also provided with screw, is convenient to external miscellaneous part; Back shaft 3 is between clutch shaft bearing seat 2 and eccentric wheel 4, and support effect is good, makes it also not yielding in the time being squeezed.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this model utility technological thought, carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to claim scope.
Claims (4)
1. a camshaft structure, comprise camshaft body, it is characterized in that: camshaft body one end is provided with the shrinkage pool that power supply machine rotating shaft is inserted, shrinkage pool is two, it is symmetrical arranged up and down, camshaft body is positioned at one end of shrinkage pool and is provided with clutch shaft bearing seat near shrinkage pool, clutch shaft bearing seat is bonded on camshaft body, also comprise the second bearing support, the second bearing support and camshaft body bonding, in clutch shaft bearing seat and the second bearing support, be all sealedly connected with clutch shaft bearing and the second bearing, between clutch shaft bearing seat and the second bearing support and be positioned at camshaft body upper-end surface and be provided with eccentric wheel, the corresponding eccentric wheel of camshaft body place has groove, eccentric wheel is placed in groove, and be fixed on camshaft body by stationary axle, and slidably, the relative shrinkage pool of camshaft body one end is provided with key tooth, key tooth and camshaft body mechanical connection, camshaft body is provided with annular oil groove near key tooth upper end, annular oil groove bottom communicates with camshaft body middle part, camshaft body is provided with eccentric shaft near annular oil groove one side, eccentric shaft is rigidly connected by perforate on camshaft body and camshaft body.
2. camshaft structure according to claim 1, is characterized in that: the width of described annular oil groove is 8-10 millimeter.
3. camshaft structure according to claim 1, is characterized in that: one end that described camshaft body is positioned at shrinkage pool is also provided with screw.
4. camshaft structure according to claim 1, is characterized in that: on described camshaft body, be also provided with back shaft, back shaft is between clutch shaft bearing seat and eccentric wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742200.5U CN203655377U (en) | 2013-11-22 | 2013-11-22 | Cam shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320742200.5U CN203655377U (en) | 2013-11-22 | 2013-11-22 | Cam shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655377U true CN203655377U (en) | 2014-06-18 |
Family
ID=50921776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320742200.5U Expired - Fee Related CN203655377U (en) | 2013-11-22 | 2013-11-22 | Cam shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141516A (en) * | 2013-11-22 | 2014-11-12 | 成都科创佳思科技有限公司 | Camshaft structure |
-
2013
- 2013-11-22 CN CN201320742200.5U patent/CN203655377U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141516A (en) * | 2013-11-22 | 2014-11-12 | 成都科创佳思科技有限公司 | Camshaft structure |
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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: 20140618 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |