CN209671086U - A kind of engine air cylinder head structure of integrated valve retainer - Google Patents
A kind of engine air cylinder head structure of integrated valve retainer Download PDFInfo
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- CN209671086U CN209671086U CN201920144673.2U CN201920144673U CN209671086U CN 209671086 U CN209671086 U CN 209671086U CN 201920144673 U CN201920144673 U CN 201920144673U CN 209671086 U CN209671086 U CN 209671086U
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- cylinder head
- valve retainer
- camshaft
- integrated
- engine air
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Abstract
The utility model relates to a kind of engine air cylinder head structure of integrated valve retainer, including cylinder head, valve retainer, exhaust manifold, Cam bearing pedestal and camshaft bearing lid, the valve retainer and the cylinder head are integrally formed；The exhaust manifold is integrated in cylinder head exhaust side；The sealing cone of the valve retainer and/or cylinder head bottom surface are coated with ceramic coating；The Cam bearing pedestal and the cylinder head integrally casting, the camshaft bearing lid go up from the Cam bearing pedestal and break, and the camshaft bearing lid and the Cam bearing pedestal pass through the disconnecting contacting surface that rises and cooperate；The shaft-cup fabrication hole of two sides installation camshaft is coaxially processed into round and is sealed using bowl-type plug in cylinder head.Valve retainer, exhaust manifold and cylinder head are integrated design, reduce components and assembly cost；The valve sealing conical surface and cylinder head bottom surface spraying ceramic materials, thermal coefficient is low, wear-resistant；Shaft-cup fabrication hole coaxially processes circle and improves machining accuracy.
Description
Technical field
The utility model belongs to engine manufacturing technology field, and in particular to a kind of cylinder of integrated valve retainer
Lid structure.
Background technique
The sealing of the inlet and exhaust valve of engine relies on valve retainer, makees relative impact movement, valve seating with engine valve
Circle is subjected to impact, beating, abrasion and the erosion of intake and exhaust stream of valve, oxidation at high temperature, operating condition and its severe,
Its quality directly affects the performance and reliability of engine.Valve retainer is usually high hardness wear-resisting heat proof material, the prior art
Valve retainer is first usually assembled in cylinder head machine-shaping of then reaming again, it is then heat-resisting, wear-resisting in one layer of surface spraying
Strong coating, manufacturing cost are higher with inoxidizability.Such as Chinese patent CN101881197A, a kind of wear-resisting type valve is disclosed
Seat, including valve seating main body made of metal enhance compound in the sealing cone setting ceramic particle of valve seating main body
Coating, while realizing makes inferior grade alloy cast iron material realize that high-performance surface layer is modified, reaches part low cost and worksheet
The high performance optimal combination in face, economizes on resources, and has and improves good superior of valve seating whole service life, product technology stability
Property.Although but the structure improves the working performance and service life of valve retainer, valve retainer using ceramic spraying layer
It is designed with cylinder head fission, first valve retainer is assembled in cylinder head and is being processed, assembly and processing cost are higher.
Utility model content
The utility model provides a kind of engine air cylinder head structure of integrated valve retainer, and the valve retainer of intake and exhaust is gentle
Cylinder cap be it is integrated, avoid in addition processing valve retainer components, reduce processing and assembly cost, directly in cylinder head
Valve retainer, cylinder head bottom surface and cylinder head sealing cone spraying ceramic materials are processed, thermal coefficient is low, and it is wear-resistant, it can reduce
Heat is transmitted by cylinder cover bottom surface and air flue, reduces cylinder cover bottom surface temperature, is reduced bottom surface thermal fatigue cracking failure, is improved and start
The machine thermal efficiency.
The technical solution of the utility model is as follows: a kind of engine air cylinder head structure of integrated valve retainer, including cylinder
Lid, valve retainer, exhaust manifold, Cam bearing pedestal and camshaft bearing lid, the valve retainer and the cylinder head are integrally formed；
The exhaust manifold is integrated in cylinder head exhaust side；The sealing cone of the valve retainer and/or cylinder head bottom surface are coated with
There is ceramic coating；The Cam bearing pedestal and the cylinder head integrally casting, the camshaft bearing lid is from the Cam bearing pedestal
Go up disconnected, the camshaft bearing lid and the Cam bearing pedestal are cooperated by the disconnecting contacting surface that rises；Camshaft is installed in cylinder head
Shaft-cup fabrication hole is round and is sealed using bowl-type plug.Traditional installation manufacturing procedure is eliminated, components and assembly are reduced
Cost, the sealing cone spraying ceramic materials of valve retainer, thermal coefficient is low, wear-resistant.The cylinder head bottom surface is also coated with
Ceramic coating reduces heat by spraying ceramic coat and is transmitted by cylinder cover bottom surface and air flue, reduce cylinder cover bottom surface temperature, reduces
Bottom surface thermal fatigue cracking failure, improves engine thermal efficiency；Exhaust manifold is integrated with cylinder cap keeps rubber separate with plastic part
The high temperature of exhaust pipe and increase device is auxiliary to be penetrated, and the durability and reliability of part increase；Prior art shaft-cup fabrication hole is usually half
Circle design, the disadvantage is that cylinder cap engaged therewith is also required to process corresponding semicircle, not only requires machining accuracy and to sealing
It is required that it is also very high, by the way that the shaft-cup fabrication hole of cylinder two sides is coaxially processed into full circle, solves and need to repeat calibration accuracy
Problem is sealed installation camshaft using bowl-type plug.
It preferably, further include rocker arm axle bearing, the camshaft bearing lid and the rocker arm shaft bearing integrated are cast.
Preferably, the ceramic coating with a thickness of 0.6~0.9mm, which had not only saved cost but also can guarantee resistance to
Mill and insulation requirement.
Preferably, the ceramic coating is alumina ceramic material, and hardness is big, and light-weight wear-resisting property is high.
Preferably, the ridge area between two adjacent valve retainers is provided with water channel, reinforces valve mounting struction
Cooling effect.
Detailed description of the invention
Fig. 1 is a kind of perspective view of the engine air cylinder head structure of integrated valve retainer described in the utility model.
Fig. 2 is the bottom view of the Y-direction of Fig. 1 described in the utility model.
Fig. 3 is a kind of engine air cylinder head structure C-C cross-sectional view of integrated valve retainer described in the utility model.
Fig. 4 is a kind of A-A cross-sectional view of the engine air cylinder head structure of integrated valve retainer described in the utility model.
Fig. 5 is the channel structure schematic diagram of the utility model.
Fig. 6 is the Cam bearing pedestal of the utility model and the mounting structure schematic diagram of camshaft bearing lid.
In figure: 1, cylinder head；2, valve retainer；201, sealing cone；3, ceramic coating；4, water channel；5, exhaust manifold；6,
Cylinder head bottom surface；7, Cam bearing pedestal；8, camshaft bearing lid；9, rocker arm axle bearing；10, shaft-cup fabrication hole.
Specific embodiment
1-6 and embodiment are described further the utility model with reference to the accompanying drawing:
It is as shown in Figs 1-4: a kind of engine air cylinder head structure of integrated valve retainer, including cylinder head 1, valve retainer 2,
Exhaust manifold 5, Cam bearing pedestal 7 and camshaft bearing lid 8, the valve retainer 2 and the cylinder head 1 are integrally formed；The row
Gas manifold 5 is integrated in cylinder head 1 and is vented side；The gentle cylinder cover bottom surface 6 of sealing cone 201 of the valve retainer 2 is coated with
Ceramic coating 3, the ceramic coating 3 with a thickness of 0.9mm；Ceramic coating 3 is made of alumina ceramic material.；The cam
Bearing block 7 and 1 integrally casting of cylinder head, the camshaft bearing lid 8 go up from the Cam bearing pedestal 7 and break, the cam
Bearing cap 8 and the Cam bearing pedestal 7 are cooperated by the disconnecting contacting surface that rises；The shaft-cup technique of two sides installation camshaft in cylinder head 1
It is coaxially processed into round and is sealed using bowl-type plug in hole 10.Traditional installation manufacturing procedure is eliminated, components and dress are reduced
With cost, the sealing cone spraying ceramic materials of valve retainer 2, thermal coefficient is low, wear-resistant.The cylinder head bottom surface 6 also applies
It is covered with ceramic coating 3, heat is reduced by spraying ceramic coat and is transmitted by cylinder cover bottom surface and air flue, cylinder cover bottom surface temperature is reduced
Degree reduces bottom surface thermal fatigue cracking failure, improves engine thermal efficiency；Exhaust manifold 5 and cylinder cap, which are integrated, makes rubber and modeling
High temperature of the materials and parts far from exhaust pipe and increase device is auxiliary to be penetrated, and the durability and reliability of part increase；Prior art shaft-cup fabrication hole
It is usually designed as a semicircle, the disadvantage is that cylinder cap engaged therewith is also required to process corresponding semicircle, not only needs higher essence
Degree and in sealing be also a problem, by the way that shaft-cup fabrication hole is processed into full circle, using bowl-type plug to install camshaft into
Row sealing.
Further include rocker arm axle bearing 9 as shown in fig. 6, its technical solution is further, the camshaft bearing lid 8 with it is described
9 integrally casting of rocker arm axle bearing.
As shown in figure 5, in other one embodiment, the difference is that, the only sealing of the valve retainer 2
On the conical surface 201 be coated with ceramic coating 3, the ceramic coating 3 with a thickness of 0.6mm；Ceramic coating 3 is alumina ceramic material
It is made.
As shown in figure 4, in other one embodiment, the gentle cylinder cover bottom surface of sealing cone 201 of the valve retainer 2
6 are coated with ceramic coating 3, the ceramic coating 3 with a thickness of 0.75mm；Ceramic coating 3 is made of alumina ceramic material.
Claims (4)
1. a kind of engine air cylinder head structure of integrated valve retainer, including cylinder head (1), valve retainer (2), exhaust manifold
(5), Cam bearing pedestal (7) and camshaft bearing lid (8), it is characterised in that: the valve retainer (2) and the cylinder head (1) one
It is body formed；The exhaust manifold (5) is integrated in cylinder head (1) exhaust side；The sealing cone (201) of the valve retainer (2)
And/or cylinder head bottom surface (6) are coated with ceramic coating (3)；The Cam bearing pedestal (7) and the cylinder head (1) are integrally cast
It makes, the camshaft bearing lid (8) is gone up from the Cam bearing pedestal (7) and breaks, the camshaft bearing lid (8) and the camshaft bearing
Seat (7) passes through disconnecting contacting surface cooperation of rising；The shaft-cup fabrication hole (10) of two sides installation camshaft is coaxially processed into circle in cylinder head (1)
Shape and use bowl-type plug sealing.
2. a kind of engine air cylinder head structure of integrated valve retainer according to claim 1, it is characterised in that: further include
Rocker arm axle bearing (9), the camshaft bearing lid (8) and rocker arm axle bearing (9) integrally casting.
3. a kind of engine air cylinder head structure of integrated valve retainer according to claim 1, it is characterised in that: the pottery
Porcelain coating (3) with a thickness of 0.6~0.9mm.
4. a kind of engine air cylinder head structure of integrated valve retainer according to claim 1, it is characterised in that: the pottery
Porcelain coating (3) is alumina ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144673.2U CN209671086U (en) | 2019-01-28 | 2019-01-28 | A kind of engine air cylinder head structure of integrated valve retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144673.2U CN209671086U (en) | 2019-01-28 | 2019-01-28 | A kind of engine air cylinder head structure of integrated valve retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671086U true CN209671086U (en) | 2019-11-22 |
Family
ID=68567487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920144673.2U Active CN209671086U (en) | 2019-01-28 | 2019-01-28 | A kind of engine air cylinder head structure of integrated valve retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671086U (en) |
-
2019
- 2019-01-28 CN CN201920144673.2U patent/CN209671086U/en active Active
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