CN203476415U - Cam shaft - Google Patents
Cam shaft Download PDFInfo
- Publication number
- CN203476415U CN203476415U CN201320480732.6U CN201320480732U CN203476415U CN 203476415 U CN203476415 U CN 203476415U CN 201320480732 U CN201320480732 U CN 201320480732U CN 203476415 U CN203476415 U CN 203476415U
- Authority
- CN
- China
- Prior art keywords
- oil
- communicated
- phase discriminator
- main journal
- phase device
- 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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Abstract
The utility model relates to a cam shaft which comprises a shaft body, a first main shaft neck, a middle main shaft neck and a tail end main shaft neck. A central oil channel is arranged on the shaft body. Shaft neck lubricating oil holes communicated with the central oil channel are formed in the middle main shaft neck and the tail end main shaft neck respectively. An oil groove is formed in the upper end of the shaft neck lubricating oil hole in the tail end main shaft neck. The oil groove is communicated with a main oil way through a middle oil way arranged on a cylinder cover. The first main shaft neck is provided with a phase device oil inlet and a phase device oil returning opening. The two ends of the phase device oil inlet are communicated with the central oil way and a driving oil way of a phase device respectively. One end of the phase device oil returning opening is communicated with a returning oil way of the phase device through a thread hole, and the other end of the phase device oil returning opening is communicated with an oil returning way through the middle oil way arranged on the cylinder cover. The cam shaft is simple and compact in structure, reasonable in design and low in manufacturing cost, the lubricating oil channel is arranged in the cam shaft, the lubricating oil channel of the cam shaft and the phase device oil way are integrated, and a cylinder cover oil way structure is simplified.
Description
Technical field
The utility model relates to a kind of camshaft of car engine, particularly relates to a kind of camshaft of the motor car engine for belt variable valve timing system.
Background technique
At present, camshaft is the vitals on motor, and along with the raising of engine power and moment of torsion, motor is had higher requirement to the robust motion of camshaft, wear resistance, tensile strength, and still, conventional cam shaft is difficult to guarantee this high request.And each axle journal place of conventional cam shaft all needs a set of oil leab is set, make cylinder cap oil channel structures complicated, manufacturing process is loaded down with trivial details, and manufacture cost is high, and manufacturing efficiency is low.
Summary of the invention
The purpose of this utility model is to overcome the deficiency existing in above-mentioned technology, and a kind of simple and compact for structure, reasonable in design, low cost of manufacture is provided, and can simplify cylinder cap oil channel structures and following process operation, the camshaft that greasy property is good.
In order to achieve the above object, the technical solution adopted in the utility model is: by bearing cap, be fixed on the cylinder cap of motor, comprise axis body, the first main journal, middle main journal and end main journal, the axial central oil passage that is provided with of described axis body, on described middle main journal and end main journal, be respectively equipped with radial journals oilhole, the lower end of axle journal oilhole is communicated with central oil passage, the upper end of the axle journal oilhole on described end main journal is provided with oil groove, oil groove is communicated with main oil gallery by the middle oil circuit being located on cylinder cap, the first described main journal is provided with phase discriminator filler opening and phase discriminator return opening, the two ends of phase discriminator filler opening are communicated with the driving oil circuit of central oil passage and phase discriminator respectively, one end of described phase discriminator return opening is communicated with the rollback oil circuit of phase discriminator by tapped hole, the other end is communicated with back oil road by the middle oil circuit being located on cylinder cap.
The utility model has the advantages that:
By oil leab being set in camshaft inside, lubricate each main journal, simplified the cylinder cap oil channel structures of motor car engine, and the oil supply structure of V V T and the lubricating oil passage structure of camshaft are become one, both met phase discriminator, guaranteed again the lubricated of camshaft, also simplified the following process operation of camshaft and reduced technology difficulty simultaneously, improved manufacturing efficiency, reduced the manufacture cost of motor, guaranteeing under the prerequisite of camshaft high strength and high reliability simple and compact for structure, lightweight in addition, by the few advantage of material.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the I partial enlarged drawing of Fig. 1;
Fig. 3 is the II partial enlarged drawing of Fig. 1;
Fig. 4 is the III partial enlarged drawing of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
From Fig. 1-Fig. 4, the utility model is fixed on the cylinder cap 1 of motor by bearing cap 12, comprise axis body 2, the first main journal 3, middle main journal 4 and end main journal 5, the axial central oil passage 6 that is provided with of described axis body 2, on described middle main journal 4 and end main journal 5, be respectively equipped with radial journals oilhole 8, the lower end of axle journal oilhole 8 is communicated with central oil passage 6, the upper end of the axle journal oilhole 8 on described end main journal 5 is provided with oil groove 13, oil groove 13 is communicated with main oil gallery 7 by the middle oil circuit being located on cylinder cap 1, the first described main journal 3 is provided with phase discriminator filler opening 10 and phase discriminator return opening 9, the two ends of phase discriminator filler opening 10 are communicated with the driving oil circuit of central oil passage 6 and phase discriminator respectively, one end of described phase discriminator return opening 9 is communicated with the rollback oil circuit of phase discriminator by tapped hole 11, the other end is communicated with back oil road by the middle oil circuit being located on cylinder cap 1.
The auxiliary hole of described central oil passage 6 is by steel ball shutoff.
A kind of camshaft of the present utility model is mainly comprised of axis body 2, the first main journal 3, middle main journal 4 and end main journal 5, and it is fixed on the cylinder cap 1 of motor by bearing cap 12.End main journal 5 is provided with axle journal oilhole 8 and oil groove 13, engine oil passage is from cylinder body main oil gallery 7, central oil passage 6 through oil groove 13 access camshaft centers, by central oil passage 6, enter different axle journal oilholes 8 simultaneously, each main journal of camshaft lubrication, by being located at the phase discriminator filler opening 10 of the first main journal 3, be communicated with the driving oil circuit that is located at the phase discriminator on camshaft axis body 2 ends, the oil return of phase discriminator is communicated with back oil road by tapped hole 11 and phase discriminator return opening 9 simultaneously.
A kind of camshaft of the present utility model lubricates each main journal by oil leab being set in camshaft inside, simplified the cylinder cap oil channel structures of motor car engine, and the oil supply structure of V V T and the lubricating oil passage structure of camshaft are become one, both met phase discriminator, guaranteed again the lubricated of camshaft, also simplified the following process operation of camshaft and reduced technology difficulty simultaneously, improved manufacturing efficiency, reduced the manufacture cost of motor, guaranteeing under the prerequisite of camshaft high strength and high reliability, simple and compact for structure in addition, lightweight, by the few advantage of material.
Claims (2)
1. a camshaft, by bearing cap (12), be fixed on the cylinder cap (1) of motor, comprise axis body (2), the first main journal (3), middle main journal (4) and end main journal (5), it is characterized in that: the axial central oil passage (6) that is provided with of described axis body (2), on described middle main journal (4) and end main journal (5), be respectively equipped with radial journals oilhole (8), the lower end of axle journal oilhole (8) is communicated with central oil passage (6), the upper end of the axle journal oilhole (8) on described end main journal (5) is provided with oil groove (13), oil groove (13) is communicated with main oil gallery (7) by the middle oil circuit being located on cylinder cap (1), described the first main journal (3) is provided with phase discriminator filler opening (10) and phase discriminator return opening (9), the two ends of phase discriminator filler opening (10) are communicated with the driving oil circuit of central oil passage (6) and phase discriminator respectively, one end of described phase discriminator return opening (9) is communicated with the rollback oil circuit of phase discriminator by tapped hole (11), the other end is communicated with back oil road by the middle oil circuit being located on cylinder cap (1).
2. a kind of camshaft according to claim 1, is characterized in that: the auxiliary hole of described central oil passage (6) is by steel ball shutoff.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480732.6U CN203476415U (en) | 2013-08-01 | 2013-08-01 | Cam shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320480732.6U CN203476415U (en) | 2013-08-01 | 2013-08-01 | Cam shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476415U true CN203476415U (en) | 2014-03-12 |
Family
ID=50224760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320480732.6U Expired - Fee Related CN203476415U (en) | 2013-08-01 | 2013-08-01 | Cam shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476415U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351032A (en) * | 2015-11-18 | 2016-02-24 | 重庆小康工业集团股份有限公司 | Lubricating system for cam shaft |
| CN106321277A (en) * | 2015-07-10 | 2017-01-11 | 广州汽车集团股份有限公司 | Cylinder head cover oil gallery assembly for automobile engine |
-
2013
- 2013-08-01 CN CN201320480732.6U patent/CN203476415U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106321277A (en) * | 2015-07-10 | 2017-01-11 | 广州汽车集团股份有限公司 | Cylinder head cover oil gallery assembly for automobile engine |
| CN106321277B (en) * | 2015-07-10 | 2018-09-11 | 广州汽车集团股份有限公司 | A kind of valve mechanism cover oil duct assembly of automobile engine |
| CN105351032A (en) * | 2015-11-18 | 2016-02-24 | 重庆小康工业集团股份有限公司 | Lubricating system for cam shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20190801 |