CN107790674A - A kind of automobile cylinder cover casting insulation stalk structure - Google Patents
A kind of automobile cylinder cover casting insulation stalk structure Download PDFInfo
- Publication number
- CN107790674A CN107790674A CN201610747448.9A CN201610747448A CN107790674A CN 107790674 A CN107790674 A CN 107790674A CN 201610747448 A CN201610747448 A CN 201610747448A CN 107790674 A CN107790674 A CN 107790674A
- Authority
- CN
- China
- Prior art keywords
- extra set
- cylinder cover
- ring
- snap ring
- chamber
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of automobile cylinder cover to cast with insulation stalk structure, including stalk, I extra set, II extra set, sleeve are cased with successively outside the stalk, No. I chamber is formed between the I extra set, II extra set, No. II chamber is formed between the II extra set, sleeve, the II extra set is mutually fixed with bearing.The present invention reduces heat loss by No. I chamber between I extra set, II extra set, and heat loss is further reduced by No. II chamber between II extra set, sleeve, energy consumption is reduced, improves production efficiency, casting flaw is avoided, improves the service life of stalk.
Description
Technical field
The invention belongs to a kind of precision cast structure, and in particular to a kind of automobile cylinder cover casting insulation stalk structure.
Background technology
Automobile engine is made up of cylinder block and cylinder cover two large divisions, is inter-connected via a bolt joint.
Cylinder cap is arranged on above cylinder body, from top seal cylinder and forms combustion chamber.It is often and high-temperature high-pressure fuel gas
It is in contact, therefore bears very big thermic load and mechanical load.Cooling jacket, cylinder cap are formed with inside the cylinder head of water-cooled engine
The cooling water hole of lower surface communicates with the cooling water hole of cylinder body.The high-temperature parts such as combustion chamber are cooled down using recirculated water.
It is also equipped with Valve seat on cylinder cap, valve guide hole, for being installed into, exhaust valve, also inlet channel and row
Gas passage etc..The hole of installation spark plug is machined with the cylinder head of gasoline engine, and installation spray is machined with the cylinder head of diesel engine
The hole of oily device.Cam shaft bearing bore is also machined with the cylinder head of cammer, to install camshaft.
Cylinder cap is typically cast using gray cast iron or alloy cast iron, and the thermal conductivity of aluminium alloy is good, is advantageous to improve compression ratio, institute
It is used more and more with aluminium alloy cylinder lid in recent years.
But aluminum alloy cylinder cover there is also some problems in casting process.
The content of the invention
The present invention proposes that the purpose is to provide a kind of automobile cylinder cover casting to protect to solve the problems, such as that prior art is present
Temperature rise liquid pipe structure.
The technical scheme is that：A kind of automobile cylinder cover casting insulation stalk structure, including stalk, the liter
I extra set, II extra set, sleeve are cased with outside liquid pipe successively, No. I chamber is formed between the I extra set, II extra set, it is described
No. II chamber is formed between II extra set, sleeve, the II extra set is mutually fixed with bearing.
The stalk upper end forms department of assembly, and the I extra set upper side forms the shoulder hole for accommodating department of assembly.
The I extra set includes the upper snap ring of upper end and the lower snap ring of lower end, and the lower snap ring external diameter is less than outside upper snap ring
Footpath.
The II extra set includes the ladder mounting ring of upper end and the retainer ring of lower end, No. II outer casing internal diameter and lower card
Ring external diameter is identical, and the shoulder hole of the ladder mounting ring is identical with upper snap ring external diameter.
No. I outer casing outer wall, upper snap ring lower surface, lower snap ring upper surface, No. II outer casing inner wall enclose to form No. I chamber
Room.
No. II outer casing outer wall, ladder mounting ring lower surface, retainer ring upper surface, sleeve lining enclose to form No. II chamber
Room.
The retainer ring end face forms through hole, and screw is mutually fixed through above-mentioned through hole with bearing.
The upper snap ring, ladder mounting ring are fixed by radial bolts, the sleeve and ladder mounting ring outer wall it
Between for interference fit.
The present invention reduces heat loss by No. I chamber between I extra set, II extra set, and passes through II extra set, set
No. II chamber between cylinder further reduces heat loss, reduces energy consumption, improves production efficiency, avoids casting flaw,
Improve the service life of stalk.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Wherein：
The extra set of 1 stalk 2 I
22 times snap rings of snap ring on 21
3 II extra sets
The retainer ring of 31 ladder mounting ring 32
4 chambers of sleeve 5 I
6 No. II chambers.
Embodiment
Hereinafter, referring to the drawings and embodiment the present invention is described in detail：
As shown in figure 1, a kind of automobile cylinder cover casting insulation stalk structure, including stalk 1, outside the stalk 1 successively
It is cased with I extra and covers 2, II extra set 3, sleeve 4, I extra, which covers, forms No. I chamber 5 between 2, II extra covers 3, described No. II
No. II chamber 6 is formed between overcoat 3, sleeve 4, the II extra set 3 is mutually fixed with bearing.
The upper end of stalk 1 forms department of assembly, and I extra covers 2 upper ends and forms the shoulder hole for accommodating department of assembly.
The I extra set 2 includes the upper snap ring 21 of upper end and the lower snap ring 22 of lower end, and the lower external diameter of snap ring 22 is less than upper
The external diameter of snap ring 21.
The II extra set 3 includes the ladder mounting ring 31 of upper end and the retainer ring 32 of lower end, and II extra covers 3 internal diameters
Identical with the lower external diameter of snap ring 22, the shoulder hole of the ladder mounting ring 31 is identical with the upper external diameter of snap ring 21.
The I extra set, 2 outer walls, the lower surface of upper snap ring 21, the upper surface of lower snap ring 22, II extra cover 3 inwalls and enclose to form I
Number chamber 5.
The II extra set, 3 outer walls, the lower surface of ladder mounting ring 31, the upper surface of retainer ring 32, the inwall of sleeve 4 enclose to be formed
No. II chamber 6.
The end face of retainer ring 32 forms through hole, and screw is mutually fixed through above-mentioned through hole with bearing.
The upper snap ring 21, ladder mounting ring 31 are fixed by radial bolts, the sleeve 4 and ladder mounting ring 31
It is interference fit between outer wall.
No. I chamber 5 is insulation air cavity, reduces the heat loss of stalk 1.
No. II chamber 6 is filled with insulation material, further reduces the heat loss of stalk 1.
The present invention reduces heat loss by No. I chamber between I extra set, II extra set, and passes through II extra set, set
No. II chamber between cylinder further reduces heat loss, reduces energy consumption, improves production efficiency, avoids casting flaw,
Improve the service life of stalk.
Claims (8)
1. a kind of automobile cylinder cover casting insulation stalk structure, including stalk（1）, it is characterised in that：The stalk（1）
I extra set is cased with successively outside（2）, II extra set（3）, sleeve（4）, the I extra set（2）, II extra set（3）Between form I
Number chamber（5）, the II extra set（3）, sleeve（4）Between formed No. II chamber（6）, the II extra set（3）With bearing phase
It is fixed.
A kind of 2. automobile cylinder cover casting insulation stalk structure according to claim 1, it is characterised in that：Described liter of liquid
Pipe（1）Upper end forms department of assembly, the I extra set（2）Upper end forms the shoulder hole for accommodating department of assembly.
A kind of 3. automobile cylinder cover casting insulation stalk structure according to claim 1, it is characterised in that：Described No. I
Overcoat（2）Upper snap ring including upper end（21）With the lower snap ring of lower end（22）, the lower snap ring（22）External diameter is less than upper snap ring
（21）External diameter.
A kind of 4. automobile cylinder cover casting insulation stalk structure according to claim 3, it is characterised in that：Described No. II
Overcoat（3）Ladder mounting ring including upper end（31）With the retainer ring of lower end（32）, the II extra set（3）Internal diameter and lower snap ring
（22）External diameter is identical, the ladder mounting ring（31）Shoulder hole and upper snap ring（21）External diameter is identical.
A kind of 5. automobile cylinder cover casting insulation stalk structure according to claim 4, it is characterised in that：Described No. I
Overcoat（2）Outer wall, upper snap ring（21）Lower surface, lower snap ring（22）Upper surface, II extra set（3）Inwall encloses to form No. I chamber
（5）.
A kind of 6. automobile cylinder cover casting insulation stalk structure according to claim 4, it is characterised in that：Described No. II
Overcoat（3）Outer wall, ladder mounting ring（31）Lower surface, retainer ring（32）Upper surface, sleeve（4）Inwall encloses to form No. II chamber
（6）.
A kind of 7. automobile cylinder cover casting insulation stalk structure according to claim 4, it is characterised in that：The fixation
Ring（32）End face forms through hole, and screw is mutually fixed through above-mentioned through hole with bearing.
A kind of 8. automobile cylinder cover casting insulation stalk structure according to claim 4, it is characterised in that：The upper card
Ring（21）, ladder mounting ring（31）It is fixed by radial bolts, the sleeve（4）With ladder mounting ring（31）Between outer wall
For interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747448.9A CN107790674A (en) | 2016-08-30 | 2016-08-30 | A kind of automobile cylinder cover casting insulation stalk structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610747448.9A CN107790674A (en) | 2016-08-30 | 2016-08-30 | A kind of automobile cylinder cover casting insulation stalk structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107790674A true CN107790674A (en) | 2018-03-13 |
Family
ID=61527890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610747448.9A Pending CN107790674A (en) | 2016-08-30 | 2016-08-30 | A kind of automobile cylinder cover casting insulation stalk structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107790674A (en) |
-
2016
- 2016-08-30 CN CN201610747448.9A patent/CN107790674A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |