CN204585147U - A kind of cam shaft for diesel engine installs locate mode - Google Patents
A kind of cam shaft for diesel engine installs locate mode Download PDFInfo
- Publication number
- CN204585147U CN204585147U CN201520282729.2U CN201520282729U CN204585147U CN 204585147 U CN204585147 U CN 204585147U CN 201520282729 U CN201520282729 U CN 201520282729U CN 204585147 U CN204585147 U CN 204585147U
- Authority
- CN
- China
- Prior art keywords
- cam shaft
- diesel engine
- dowel hole
- hole
- locate mode
- 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
Links
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model relates to technical field of internal combustion engines, especially a kind of cam shaft for diesel engine installs locate mode, in the process segment, cam shaft gear and camshaft front end process dowel hole respectively, the position of this dowel hole is calculated by the distribution of diesel engine and injection timing, and what rely on two dowel holes aligns the phase relation of installing and can realize diesel engine distribution, injection timing and crankshaft angles.During assembling, the dowel hole of cam assembly and cam shaft gear aligns, squeezes into alignment pin, then install connecting bolt after having good positioning according to matching mark and distribution idle pulley by cam shaft gear.After installing, measure the phase relation of fuel cam lift and crankshaft angles, utilize dial gauge inspection.This cam shaft for diesel engine installation locate mode eliminates phase place adjustment operation and the operation of boring dowel hole is joined at scene, reduces diesel engine and assembles man-hour, assembly precision is replaced by more senior numerical control (NC) Machining Accuracy.
Description
Technical field
The utility model relates to technical field of internal combustion engines, and especially a kind of cam shaft for diesel engine installs locate mode.
Background technology
Diesel engine, when installing cam assembly, for meeting the relation of distribution and fuel cam and crank angle, being needed to measure adjustment fuel cam lift and crankshaft timing gear phase place, then being connected with timing gears by the camshaft adjusted by cam shaft gear; Meanwhile, also need to join brill dowel hole at assembling scene, operation assembling cycle is long.
Utility model content
In order to overcome existing deficiency, the utility model provides a kind of cam shaft for diesel engine and installs locate mode.
The utility model solves the technical scheme that its technical problem adopts: a kind of cam shaft for diesel engine installs locate mode, according to Fuel Injection Mechanism of Diesel Engine cam profile, injection timing and the timing gears position of engagement, cam shaft gear processes dowel hole one, camshaft front end processes dowel hole two, described dowel hole one is corresponding with dowel hole two to be connected, described cam shaft gear is provided with bolt hole one, described camshaft front end is provided with bolt hole two, and described bolt hole one is connected with bolt hole two correspondence.Aligned with the dowel hole two on camshaft front end by dowel hole one on described cam shaft gear, described dowel hole one is fixed by alignment pin with dowel hole two, and described bolt hole one is connected by connecting bolt with bolt hole two.
According to another embodiment of the present utility model, comprise further, described bolt hole two is uniformly distributed along camshaft front end circumference.
According to another embodiment of the present utility model, comprise further, described bolt hole one changes circular hole into by waist-shaped hole.
According to another embodiment of the present utility model, comprise further, described dowel hole one is matched in clearance with alignment pin.
According to another embodiment of the present utility model, comprise further, described dowel hole two is interference fit with alignment pin.
The beneficial effects of the utility model are, this cam shaft for diesel engine installation locate mode eliminates phase place adjustment operation and the operation of boring dowel hole is joined at scene, reduces diesel engine and assembles man-hour, assembly precision is replaced by more senior numerical control (NC) Machining Accuracy.Further, boring work need not be carried out in diesel engine assembling scene, is conducive to the guarantee of diesel engine cleannes.Meanwhile, the bolt hole of cam shaft gear makes circular hole into again for half man-hour has been saved in the processing in hole by waist-shaped hole.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the cam shaft gear after the utility model change;
Fig. 2 is the structural representation of the camshaft front end after the utility model change.
1-cam shaft gear in figure, 2-camshaft front end, 3-dowel hole one, 4-bolt hole one, 5-dowel hole two, 6-bolt hole two.
Detailed description of the invention
As the structural representation that Fig. 1 is the cam shaft gear after the utility model is changed, Fig. 2 is the structural representation of the camshaft front end after the utility model change, a kind of cam shaft for diesel engine installs locate mode, it is characterized in that, according to Fuel Injection Mechanism of Diesel Engine cam profile, injection timing and the timing gears position of engagement, cam shaft gear 1 processes dowel hole 1, camshaft front end 2 processes dowel hole 25, described dowel hole 1 is corresponding with dowel hole 25 to be connected, described cam shaft gear 1 is provided with bolt hole 1, described bolt hole 1 is circular hole by kidney-shaped port lid, described camshaft front end 2 is provided with bolt hole 26, described bolt hole 26 distributes along camshaft front end 2 even circumferential, described bolt hole 1 is connected with bolt hole 26 correspondence.
During assembling, dowel hole 1 on described cam shaft gear 1 is aligned with the dowel hole 25 on camshaft front end 2, described dowel hole 1 is fixed by alignment pin with dowel hole 25, dowel hole 1 and alignment pin are matched in clearance, described dowel hole 25 is interference fit with alignment pin, and described bolt hole 1 is connected by connecting bolt with bolt hole 26.After installing, measure the phase relation of fuel cam lift and crankshaft angles, utilize dial gauge inspection.
Claims (5)
1. a cam shaft for diesel engine installs locate mode, it is characterized in that, according to Fuel Injection Mechanism of Diesel Engine cam profile, injection timing and the timing gears position of engagement, cam shaft gear (1) processes dowel hole one (3), camshaft front end (2) process dowel hole two (5), described dowel hole one (3) is corresponding with dowel hole two (5) to be connected, described cam shaft gear (1) is provided with bolt hole one (4), described camshaft front end (2) is provided with bolt hole two (6), described bolt hole one (4) is connected with bolt hole two (6) correspondence, dowel hole one (3) on described cam shaft gear (1) is aligned with the dowel hole two (5) on camshaft front end (2), described dowel hole one (3) is fixed by alignment pin with dowel hole two (5), described bolt hole one (4) is connected by connecting bolt with bolt hole two (6).
2. a kind of cam shaft for diesel engine according to claim 1 installs locate mode, and it is characterized in that, described bolt hole two (6) distributes along camshaft front end (2) even circumferential.
3. a kind of cam shaft for diesel engine according to claim 1 installs locate mode, and it is characterized in that, described bolt hole one (4) changes circular hole into by waist-shaped hole.
4. a kind of cam shaft for diesel engine according to claim 1 installs locate mode, it is characterized in that, described dowel hole one (3) is matched in clearance with alignment pin.
5. a kind of cam shaft for diesel engine according to claim 1 installs locate mode, it is characterized in that, described dowel hole two (5) is interference fit with alignment pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520282729.2U CN204585147U (en) | 2015-05-05 | 2015-05-05 | A kind of cam shaft for diesel engine installs locate mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520282729.2U CN204585147U (en) | 2015-05-05 | 2015-05-05 | A kind of cam shaft for diesel engine installs locate mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204585147U true CN204585147U (en) | 2015-08-26 |
Family
ID=53921344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520282729.2U Expired - Fee Related CN204585147U (en) | 2015-05-05 | 2015-05-05 | A kind of cam shaft for diesel engine installs locate mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204585147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727561A (en) * | 2020-12-21 | 2021-04-30 | 中国北方发动机研究所(天津) | Tower wheel structure with distribution phase adjustable function |
-
2015
- 2015-05-05 CN CN201520282729.2U patent/CN204585147U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727561A (en) * | 2020-12-21 | 2021-04-30 | 中国北方发动机研究所(天津) | Tower wheel structure with distribution phase adjustable function |
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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: 20150826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |