CN204299634U - A kind of camshaft - Google Patents
A kind of camshaft Download PDFInfo
- Publication number
- CN204299634U CN204299634U CN201420704849.2U CN201420704849U CN204299634U CN 204299634 U CN204299634 U CN 204299634U CN 201420704849 U CN201420704849 U CN 201420704849U CN 204299634 U CN204299634 U CN 204299634U
- Authority
- CN
- China
- Prior art keywords
- driving shaft
- universal driving
- connecting portion
- camshaft
- cam
- 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
A kind of camshaft, comprising cross section is circular camshaft body, described camshaft body comprises cam and is positioned at the first universal driving shaft and second universal driving shaft of cam both sides, it is the first circular connecting portion that the other end of described first universal driving shaft is connected with cross section, screw thread is provided with outside described first connecting portion, it is rectangular second connecting portion that the other end of described second universal driving shaft is connected with cross section, and on described second connecting portion both sides, symmetry is provided with projection; Described cam is eccentric cam.Its beneficial effect is: the first universal driving shaft is connected with the first connecting portion, and is provided with screw thread outside the first connecting portion, the second universal driving shaft is connected with the second connecting portion, and the second connecting portion is provided with projection, is conducive to the interlock effect of camshaft; Cam is arranged to eccentric cam, and camshaft revolves to turn around and can realize multistation fuel feeding, improves the operating efficiency of camshaft.
Description
Technical field
The utility model relates to a kind of for the camshaft in common rail for diesel engine pump.
Background technology
At present, at the camshaft that the camshaft used is circle for a kind of cross section in common rail for diesel engine pump, when camshaft is driven in rotation, the interlock effect at two ends is bad, causes the operating efficiency of common rail pump to reduce; And camshaft revolves to turn around and only can realize single-stroke, when needs multistation fuel feeding, just need on camshaft, arrange multiple cam, make the overall volume of camshaft huge, use inconvenience.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provide a kind of link effective and can the camshaft that simultaneously works of multistation.
To achieve these goals, a kind of camshaft designed by the utility model, comprising cross section is circular camshaft body, described camshaft body comprises cam and is positioned at the first universal driving shaft and second universal driving shaft of cam both sides, it is the first circular connecting portion that the other end of described first universal driving shaft is connected with cross section, screw thread is provided with outside described first connecting portion, it is rectangular second connecting portion that the other end of described second universal driving shaft is connected with cross section, and on described second connecting portion both sides, symmetry is provided with projection; Described cam is eccentric cam.
Further, between described first connecting portion and the first universal driving shaft, arc-shaped transition between the second universal driving shaft and the second connecting portion, between the first universal driving shaft and cam and between the second universal driving shaft and cam.
Further, also comprise a blind hole, described blind hole is passed the second connecting portion, the second universal driving shaft and cam and is extended to the first universal driving shaft.The setting of blind hole, dynamic balancing better effects if when whole camshaft body can be made to rotate.
Further, described blind hole is positioned at the bosom of the second connecting portion, the second universal driving shaft and the first universal driving shaft.
Further, described blind hole is positioned at the bottom of the first universal driving shaft is that taper is arranged.
Further, described first universal driving shaft comprise in the middle part of universal driving shaft head that radius becomes large successively, universal driving shaft with universal driving shaft bottom, be connected with cam bottom described universal driving shaft.
Further, described this body by integral forming of camshaft.
A kind of camshaft that the utility model obtains, its technique effect is: the first universal driving shaft is connected with the first connecting portion, and is provided with screw thread outside the first connecting portion, the second universal driving shaft is connected with the second connecting portion, and the second connecting portion is provided with projection, be conducive to the interlock effect of camshaft; Cam is arranged to eccentric cam, and camshaft revolves to turn around and can realize multistation fuel feeding, improves the operating efficiency of camshaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of camshaft of the utility model.
Fig. 2 is the sectional view of a kind of camshaft of the utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, 2, a kind of camshaft that the utility model provides, comprising cross section is circular camshaft body 1, described camshaft body 1 comprises cam 2 and is positioned at the first universal driving shaft 3 and the second universal driving shaft 4 of cam 2 both sides, it is the first circular connecting portion 5 that the other end of described first universal driving shaft 3 is connected with cross section, screw thread is provided with outside described first connecting portion 5, it is rectangular second connecting portion 6 that the other end of described second universal driving shaft 4 is connected with cross section, and on described second connecting portion 6 both sides, symmetry is provided with projection; Described cam 2 is eccentric cam.
Arc-shaped transition between described first connecting portion 5 and the first universal driving shaft 3, between the second universal driving shaft 4 and the second connecting portion 6, between the first universal driving shaft 3 and cam 2 and between the second universal driving shaft 4 and cam 2.
In the present embodiment, also comprise a blind hole 7, described blind hole 7 is through the second connecting portion 5, second universal driving shaft 4 and cam 2 and extend to the first universal driving shaft 3, and the bottom that described blind hole 7 is positioned at the first universal driving shaft 3 is that taper is arranged.
Described blind hole 7 is positioned at the second connecting portion 5, second universal driving shaft with 4 and first bosom of universal driving shaft 3.The dynamic balancing arranged when whole camshaft body 1 can be made to rotate of blind hole 7 is better.
Described first universal driving shaft 3 to comprise in the middle part of universal driving shaft head 31 that radius becomes large successively, universal driving shaft 32 with universal driving shaft bottom 33, bottom described universal driving shaft, 33 are connected with cam 2.
Described camshaft body 1 is one-body molded.
A kind of camshaft that the utility model obtains, its technique effect is: the first universal driving shaft 3 is connected with the first connecting portion 5, and is provided with screw thread outside the first connecting portion 5, the second universal driving shaft 4 is connected with the second connecting portion 6, and the second connecting portion 6 is provided with projection, be conducive to the interlock effect of camshaft; Cam 2 is arranged to eccentric cam, and camshaft revolves to turn around and can realize multistation fuel feeding, improves the operating efficiency of camshaft.
Claims (7)
1. a camshaft, comprising cross section is circular camshaft body, it is characterized in that: described camshaft body comprises cam and is positioned at the first universal driving shaft and second universal driving shaft of cam both sides, it is the first circular connecting portion that the other end of described first universal driving shaft is connected with cross section, screw thread is provided with outside described first connecting portion, it is rectangular second connecting portion that the other end of described second universal driving shaft is connected with cross section, and on described second connecting portion both sides, symmetry is provided with projection; Described cam is eccentric cam.
2. camshaft according to claim 1, is characterized in that: arc-shaped transition between described first connecting portion and the first universal driving shaft, between the second universal driving shaft and the second connecting portion, between the first universal driving shaft and cam and between the second universal driving shaft and cam.
3. camshaft according to claim 1 and 2, is characterized in that: also comprise a blind hole, and described blind hole is passed the second connecting portion, the second universal driving shaft and cam and extended to the first universal driving shaft.
4. camshaft according to claim 3, is characterized in that: described blind hole is positioned at the bosom of the second connecting portion, the second universal driving shaft and the first universal driving shaft.
5. camshaft according to claim 3, is characterized in that: the bottom that described blind hole is positioned at the first universal driving shaft is that taper is arranged.
6. camshaft according to claim 1 and 2, is characterized in that: described first universal driving shaft comprise in the middle part of universal driving shaft head that radius becomes large successively, universal driving shaft with universal driving shaft bottom, be connected with cam bottom described universal driving shaft.
7. camshaft according to claim 6, is characterized in that: described this body by integral forming of camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704849.2U CN204299634U (en) | 2014-11-22 | 2014-11-22 | A kind of camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704849.2U CN204299634U (en) | 2014-11-22 | 2014-11-22 | A kind of camshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299634U true CN204299634U (en) | 2015-04-29 |
Family
ID=53105180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420704849.2U Expired - Fee Related CN204299634U (en) | 2014-11-22 | 2014-11-22 | A kind of camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204299634U (en) |
-
2014
- 2014-11-22 CN CN201420704849.2U patent/CN204299634U/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: 20150429 Termination date: 20211122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |