CN201554506U - Engine compression casting type cam shaft bearing cover - Google Patents
Engine compression casting type cam shaft bearing cover Download PDFInfo
- Publication number
- CN201554506U CN201554506U CN2009201284700U CN200920128470U CN201554506U CN 201554506 U CN201554506 U CN 201554506U CN 2009201284700 U CN2009201284700 U CN 2009201284700U CN 200920128470 U CN200920128470 U CN 200920128470U CN 201554506 U CN201554506 U CN 201554506U
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- CN
- China
- Prior art keywords
- cam shaft
- bearing cover
- camshaft
- bearing cap
- compression casting
- 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 provides an engine compression casting type cam shaft bearing cover, wherein a No. 1 bearing cover of a gas inlet cam shaft and a No. bearing cover of a gas exhaust cam shaft are integrated together to be a integral compression casting shaping structure, the size precision and the surface quality of the bearing cover are higher than other compression casting methods, the intensity and hardness are higher, and the production efficiency is high. A shaft neck lubricating oil channel of the cam shaft is arranged on a sealing surface at the bottom of a bearing cover of the cam shaft, and a gluing groove is arranged on the edge of the shaft neck lubricating oil channel of the cam shaft close to a belt on the front end, which is convenient for gluing, increases the sealing effect, and prevents lubricating oil from leaking under the condition of increasing pressure. A lightening hole is arranged on a position with bigger product wall on the cam shaft bearing cover, wall thickness of each position is even, weight can be lowered, and material cost is saved.
Description
Technical field
The utility model relates to a kind of engine camshaft bearing cap.
Background technique
Engine camshaft bearing cap is to manufacture with cylinder head to be processed to form the camshaft mounting hole, and has functions such as arranging camshaft lubrication oil duct, thrust mechanism concurrently, is installed on the camshaft, and its structural type mainly is divided into partition type and integrated type.
At present, camshaft bearing is stamped and adopts gravity casting moulding and high pressure die casting moulding dual mode.Adopt the gravity casting moulding, manufacturing efficiency is low, and product percent of pass is low, and the cost height far can not satisfy large batch of production.And high pressure die casting has advantages such as good product quality, manufacturing efficiency height, economic effect be good, is fit to produce in enormous quantities.But die casting is easy to generate pore, and is difficult to the foundry goods moulding of indent complexity, also need carry out sustainability optimization at aspects such as mold design, equipment selection, process parameter formulations.
The assembling form of camshaft-bearing cap is to be coated with full glue at sealing surface, relies on bolt to be connected with cylinder head then, and wherein because the gluing uniformity be difficult for to be held, and along with the utilization of supercharging technology, the pressure of oil leab increases, and causes the leakage of oil leab easily.
The model utility content
Technical problem to be solved in the utility model provides a kind of engine camshaft bearing cap, and to enhance productivity, expense reduces cost.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of engine camshaft bearing cap, it is integrated by No. 1 bearing cap of admission cam shaft and No. 1 bearing cap merging of exhaust cam shaft, is the integral die-cast shaping structure.Be furnished with the camshaft bearing journal oil leab on the bottom sealing surface of camshaft-bearing cap, the lubricant oil that comes out from cylinder head is caused camshaft bearing journal, need to avoid the bolt of bearing cap hole in the layout.
Because cylinder head front end timing wheel is a belt transmission, pollute belt for preventing lubricating oil leakage, the edge of the camshaft bearing journal oil leab that covers at camshaft bearing and coating groove is set near front end belt side position.
Described camshaft bearing covers and is furnished with lightening hole, and each position wall thickness is even, and its position is at product wall thickness larger part, and assurance removal material does not have influence to product strength.
Advantage of the present utility model:
This engine camshaft bearing cap integrates die cast with No. 1 bearing cap of admission cam shaft and No. 1 bearing cap merging of exhaust cam shaft, and the dimensional accuracy of bearing cap and surface quality are higher than other casting method, and intensity hardness is higher, the manufacturing efficiency height.Arrange coating groove in the camshaft-bearing cap bottom plane, die cast need not cutting, makes things convenient for gluing, can increase sealing effect, avoids the leakage of lubricant oil under the situation that pressure increases.The design of lightening hole can reduce weight, the economical with materials cost.
Description of drawings
Fig. 1 is a plan view of the present utility model
Fig. 2 is a rear view of the present utility model
Wherein: 1 is that camshaft-bearing cap 2 is camshaft bearing journal oil leab for bottom sealing surface 7 for coating groove 8 for No. 1 bearing cap of exhaust cam shaft 6 for lightening hole 5 for No. 1 bearing cap of admission cam shaft 4 for bolt of bearing cap hole 3
Embodiment
As depicted in figs. 1 and 2, this camshaft-bearing cap 1 has comprised No. 1 bearing cap 3 of admission cam shaft and No. 1 bearing cap 5 two-part of exhaust cam shaft, and both one die casts are monolithic construction.Be furnished with camshaft bearing journal oil leab 8 on the bottom sealing surface 6 of camshaft-bearing cap 1, need to avoid bolt of bearing cap hole 2 in the layout.And be provided with coating groove 7 at the edge of camshaft bearing journal oil leab 8 and near front end belt side position, to guarantee the sealing of lubricant oil, satisfy the usage requirement of motor.
In addition, on camshaft-bearing cap 1, be furnished with a plurality of lightening holes 4, and guarantee the uniformity of wall thickness, be beneficial to the extrusion process moulding.
When carrying out camshaft-bearing cap 1 assembling, smear sealer at bottom sealing surface 6 and coating groove 7 respectively, be connected with cylinder head by bolt then.
Claims (2)
1. engine compression casting formula camshaft-bearing cap, it integrates No. 1 bearing cap of admission cam shaft and No. 1 bearing cap two-part structure of exhaust cam shaft, is the integral die-cast shaping structure; It is characterized in that: be furnished with the camshaft bearing journal oil leab on the bottom sealing surface of described camshaft-bearing cap; And coating groove is set at the edge of camshaft bearing journal oil leab and near front end belt side position.
2. engine compression casting formula camshaft-bearing cap according to claim 1 is characterized in that: the product wall thickness larger part that covers at described camshaft bearing is furnished with lightening hole, and each position wall thickness is even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201284700U CN201554506U (en) | 2009-08-14 | 2009-08-14 | Engine compression casting type cam shaft bearing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201284700U CN201554506U (en) | 2009-08-14 | 2009-08-14 | Engine compression casting type cam shaft bearing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201554506U true CN201554506U (en) | 2010-08-18 |
Family
ID=42614188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201284700U Expired - Fee Related CN201554506U (en) | 2009-08-14 | 2009-08-14 | Engine compression casting type cam shaft bearing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201554506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269224A (en) * | 2011-08-01 | 2011-12-07 | 扬州尼尔工程塑料有限公司 | Bearing cover |
| CN103114933A (en) * | 2013-02-05 | 2013-05-22 | 奇瑞汽车股份有限公司 | Gummed surface seal structure |
-
2009
- 2009-08-14 CN CN2009201284700U patent/CN201554506U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269224A (en) * | 2011-08-01 | 2011-12-07 | 扬州尼尔工程塑料有限公司 | Bearing cover |
| CN103114933A (en) * | 2013-02-05 | 2013-05-22 | 奇瑞汽车股份有限公司 | Gummed surface seal 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: 20100818 Termination date: 20150814 |
|
| EXPY | Termination of patent right or utility model |