CN204878624U - Camshaft timing gear - Google Patents
Camshaft timing gear Download PDFInfo
- Publication number
- CN204878624U CN204878624U CN201520678069.XU CN201520678069U CN204878624U CN 204878624 U CN204878624 U CN 204878624U CN 201520678069 U CN201520678069 U CN 201520678069U CN 204878624 U CN204878624 U CN 204878624U
- Authority
- CN
- China
- Prior art keywords
- camshaft
- gear
- web
- hole
- mounting hole
- 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-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to a camshaft timing gear, including gear body, web, keyway, camshaft mounting hole, lightening hole and screw hole, gear body A disc -shaped, the camshaft mounting hole sets up at gear body middle part, the keyway setting is on camshaft mounting hole inner wall, the camshaft mounting hole passes through the keyway to be connected with the woodruff key and the tip cooperation of camshaft, the web is installed on the gear body, the theta angle is personally submitted to terminal surface and gear body front end before the web, messenger's web front end is bellied on -plane surface towards the orientation of camshaft and describes, the quantity of lightening hole is the even number, and lightening hole symmetry ground equipartition is on the web, screw hole also symmetry is seted up on the web. The utility model discloses can effectively reduce camshaft timing gear weight, put forward high tooth wheel smooth operation nature and reduce the gear noise, simplify gear structure, reduce cost simplifies assembly process, eliminate the external force influence that the web received betterly in the assembly, avoid deformation.
Description
Technical field
The utility model relates to engine part technical field, specifically a kind of camshaft timing gear.
Background technique
Timing gear be in mechanical device to complete relevant control function play time scale location gear.The effect of camshaft timing gear is port timing when ensureing engine running, makes the opening and closing of inlet and outlet door consistent with piston movement, timing gear are equipped with mark, corresponding with the mark of crankshaft gear, camshaft gear wheel when assembling.Camshaft timing gear is connected with camshaft by bolt, and the end of camshaft has also been bolted idle gear wear strip, prevents camshaft timing gear from slippage camshaft, realizes transmission of power.
Existing camshaft timing gear adopts overall structure, and profile is heavy, and consumptive material is more, and due to weight comparatively large, the power loss of train of gearings can be increased.Camshaft timing gear and camshaft bolt connecting mode, which is more complicated on assembly technology, and the number of spare parts of assembling is more, increases the labor intensity of rigger.Meanwhile, the web on camshaft timing gear is usually designed to plane, cannot eliminate the impact of external force in assembly process preferably, produces deformation.
Model utility content
The technical problems to be solved in the utility model is, for the deficiency that prior art exists, provides a kind of camshaft timing gear, effectively reduces camshaft timing gear weight, improves gear operation stationarity and reduces gear noiose; Simplify gear structure, reduce costs, simplify assembly technology; Eliminate the external force impact that web is subject in assembling preferably, avoid deformation.
The utility model solves the problems of the technologies described above taked technological scheme: camshaft timing gear comprises gear, web, keyway, camshaft mounting hole, lightening hole and tapped hole; Described gear is in the form of annular discs, camshaft mounting hole is arranged in the middle part of gear, keyway is arranged on camshaft mounting hole inwall, camshaft mounting hole is connected by the end of keyway and woodruff key and camshaft, to ensure that camshaft timing gear is connected reliably with camshaft, realize valve timing; Web is arranged in gear, and web front-end face and gear front-end face are θ angle, makes web front-end face be the non-planar of projection towards the direction of camshaft; The quantity of lightening hole is even number, and lightening hole is distributed on web symmetrically, plays loss of weight effect; Tapped hole also symmetry is opened on web, installs for Bolt to position, and coordinates the object of drawing Ma Yida to dismantle camshaft timing gear.
Described tapped hole quantity is 2.
The utility model possesses following advantage:
(1) symmetrical lightening hole is set on web, can effectively reduces camshaft timing gear weight, improve gear operation stationarity and reduce gear noiose.
(2) adopt the mode of interference fit to be connected with camshaft, save part and the structures such as bolt, anti-template, tapped hole, through hole, connect reliable, cost reduces, and assembly technology simplifies.
(3) web is in non-planar to cam axle head projection with several angle, can eliminate the impact of external force preferably, avoid deformation in assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of camshaft timing gear described in the utility model.
Fig. 2 is for the camshaft timing gear shown in Fig. 1 is along the cross-sectional view of A-A.
Fig. 3 is the erection drawing of camshaft timing gear described in the utility model and camshaft.
Reference character is: 1-gear, 2-web, 3-keyway, 4-camshaft mounting hole, 5-lightening hole, 6-tapped hole, 7-gear front-end face, 8-woodruff key, 9-camshaft.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
As shown in Figure 1-Figure 3, camshaft timing gear described in the utility model comprises gear 1, web 2, keyway 3, camshaft mounting hole 4, lightening hole 5 and tapped hole 6.
Described gear 1 is in the form of annular discs, camshaft mounting hole 4 is arranged in the middle part of gear 1, keyway 3 is arranged on camshaft mounting hole 4 inwall, camshaft mounting hole 4 is coordinated with camshaft 9 by keyway 3 and woodruff key 8, ensure that camshaft timing gear is connected reliably with camshaft 9, realize valve timing; Web 2 is arranged in gear 1, and web 2 front-end face and gear 1 front-end face 7, in θ angle, make web 2 front-end face be the non-planar of projection towards the direction of camshaft 9, can eliminate the impact of external force preferably, avoid deformation in assembling; The quantity of lightening hole 5 is even number, and lightening hole 5 is distributed on web 2 symmetrically, plays loss of weight effect; Tapped hole 6 also symmetry is opened on web 2, and quantity is 2, installs for bolt, and coordinates the object of drawing Ma Yida to dismantle camshaft timing gear.
Claims (2)
1. a camshaft timing gear, is characterized in that, comprises gear, web, keyway, camshaft mounting hole, lightening hole and tapped hole; Described gear is in the form of annular discs, camshaft mounting hole is arranged in the middle part of gear, keyway is arranged on camshaft mounting hole inwall, camshaft mounting hole is connected by the end of keyway and woodruff key and camshaft, to ensure that camshaft timing gear is connected reliably with camshaft, realize valve timing; Web is arranged in gear, and web front-end face and gear front-end face are θ angle, makes web front-end face be the non-planar of projection towards the direction of camshaft; The quantity of lightening hole is even number, and lightening hole is distributed on web symmetrically, plays loss of weight effect; Tapped hole also symmetry is opened on web, installs for Bolt to position, and coordinates the object of drawing Ma Yida to dismantle camshaft timing gear.
2. camshaft timing gear according to claim 1, is characterized in that, described tapped hole quantity is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520678069.XU CN204878624U (en) | 2015-09-02 | 2015-09-02 | Camshaft timing gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520678069.XU CN204878624U (en) | 2015-09-02 | 2015-09-02 | Camshaft timing gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204878624U true CN204878624U (en) | 2015-12-16 |
Family
ID=54822999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520678069.XU Expired - Fee Related CN204878624U (en) | 2015-09-02 | 2015-09-02 | Camshaft timing gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204878624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122438A (en) * | 2016-08-15 | 2016-11-16 | 常州市武进金城齿轮有限公司 | Manual rotation type gear |
-
2015
- 2015-09-02 CN CN201520678069.XU patent/CN204878624U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122438A (en) * | 2016-08-15 | 2016-11-16 | 常州市武进金城齿轮有限公司 | Manual rotation type gear |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160902 |