CN104806373A - Internal combustion engine valve seat ring locking mechanism and locking method - Google Patents
Internal combustion engine valve seat ring locking mechanism and locking method Download PDFInfo
- Publication number
- CN104806373A CN104806373A CN201510141739.9A CN201510141739A CN104806373A CN 104806373 A CN104806373 A CN 104806373A CN 201510141739 A CN201510141739 A CN 201510141739A CN 104806373 A CN104806373 A CN 104806373A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- seat ring
- air valve
- mounting hole
- locking
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract description 4
- 238000004080 punching Methods 0.000 claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 241000731961 Juncaceae Species 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/22—Valve-seats not provided for in preceding subgroups of this group; Fixing of valve-seats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
Abstract
The invention provides an internal combustion engine valve seat ring locking mechanism and a locking method thereof. The internal combustion engine valve seat ring locking mechanism comprises a cylinder cover and a valve seat ring; the cylinder cover is provided with a valve seat ring locking groove and a valve seat ring mounting hole. When the installation interference magnitude of the valve cover and the valve seat ring keeps unchanged, the valve seat ring can be locked reliably by selecting the locking structure of the valve seat ring mounting hole reasonably and punching at the punching position, and falling fault of the valve seat ring can be avoided efficiently.
Description
Technical field
The invention belongs to air valve seat ring locking mechanism field, especially relate to a kind of engine valve seat ring locking mechanism and locking method thereof.
Background technique
Engine valve seat ring adopts interference fit to be arranged in the air valve seat ring mounting hole in head combustion chamber face, and its function forms with valve to seal reliably.Air valve seat ring and cylinder head should have enough magnitude of interference, can not produce obscission under ensureing working state, but too large magnitude of interference will cause the air valve seat ring mounting hole gross distortion of cylinder head and install difficulty.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of engine valve seat ring locking mechanism and locking method thereof, for the connection of air valve seat ring and cylinder head provides suitable magnitude of interference, ensure simple installation, and the air valve seat ring mounting hole of cylinder head can not produce distortion, during normal work, air valve seat ring can not produce and come off.
For solving the problems of the technologies described above, the technical solution used in the present invention is: engine valve seat ring locking mechanism, comprises cylinder head and the air valve seat ring with its interference fit, and cylinder head is provided with air valve seat ring locking slot and air valve seat ring mounting hole.
When processing air valve seat ring locking slot and air valve seat ring mounting hole, the diameter of phi A 2mm larger than the diameter of phi B of air valve seat ring mounting hole of air valve seat ring locking slot, is convenient to punching point and installs; The working depth of air valve seat ring locking slot will ensure with the end face distance of air valve seat ring to be 0.5mm ~ 1mm, and roughness is Ra3.2.
The locking method of above-mentioned engine valve seat ring, comprises the following steps: will be pressed in the air valve seat ring mounting hole of cylinder head after air valve seat ring cooled with liquid nitrogen; Rush a little with a position that rushes of punching pin at the edge of air valve seat ring locking slot near air valve seat ring edge, be washed into arc-shaped, the punching point degree of depth is 0.5mm.
The advantage that the present invention has and good effect are: when the installation magnitude of interference of air valve seat ring and cylinder head remains unchanged, by choose reasonable valve-seat bore locking mechanism, air valve seat ring reliably can be locked, effectively can avoid the release failure of air valve seat ring.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the machining sketch chart of air valve seat ring locking slot in the present invention.
In figure:
1-cylinder head, 2-air valve seat ring, 3-air valve seat ring locking slot, 4-air valve seat ring mounting hole, 5-punching point position.
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the invention are elaborated.
Engine valve seat ring locking mechanism as shown in Fig. 1 to 2, comprises cylinder head 1 and air valve seat ring 2, and cylinder head 1 is provided with air valve seat ring locking slot 3 and air valve seat ring mounting hole 4.
When processing air valve seat ring locking slot 3 and air valve seat ring mounting hole 4, ensure the diameter of phi A 2mm larger than the diameter of phi B of air valve seat ring mounting hole 4 of air valve seat ring locking slot 3; The working depth of air valve seat ring locking slot 3 will ensure with the end face distance of air valve seat ring 2 to be 0.5mm ~ 1mm, and roughness is Ra3.2.
The locking method of the engine valve seat ring in the present embodiment comprises the following steps, first by air valve seat ring 2 with being pressed in the air valve seat ring mounting hole 4 of cylinder head 1 after cooled with liquid nitrogen; Then rush a little with the position 5 that rushes of punching pin at the edge of air valve seat ring locking slot 3 near air valve seat ring 2 edge, be washed into arc-shaped, the punching point degree of depth is 0.5mm, namely completes the locking to air valve seat ring.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (2)
1. engine valve seat ring locking mechanism, it is characterized in that: comprise cylinder head (1) and the air valve seat ring (2) with its interference fit, cylinder head (1) is provided with air valve seat ring locking slot (3) and air valve seat ring mounting hole (4), the diameter 2mm larger than the diameter of air valve seat ring mounting hole (4) of air valve seat ring locking slot (3); The working depth of air valve seat ring locking slot (3) is to ensure that with the end face distance of air valve seat ring (2) be 0.5mm ~ 1mm, and roughness is Ra3.2.
2. the locking method of engine valve seat ring locking mechanism, is characterized in that, comprises the following steps:
(1) by air valve seat ring (2) with being pressed in the air valve seat ring mounting hole (4) of cylinder head (1) after cooled with liquid nitrogen;
(2) rush a little with the position (5) that rushes of punching pin at the edge of air valve seat ring locking slot (3) near air valve seat ring (2) edge, be washed into arc-shaped, the punching point degree of depth is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141739.9A CN104806373A (en) | 2015-03-27 | 2015-03-27 | Internal combustion engine valve seat ring locking mechanism and locking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141739.9A CN104806373A (en) | 2015-03-27 | 2015-03-27 | Internal combustion engine valve seat ring locking mechanism and locking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806373A true CN104806373A (en) | 2015-07-29 |
Family
ID=53691508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510141739.9A Pending CN104806373A (en) | 2015-03-27 | 2015-03-27 | Internal combustion engine valve seat ring locking mechanism and locking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806373A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332811A (en) * | 2015-12-10 | 2016-02-17 | 广西玉柴机器股份有限公司 | Diesel engine cylinder head |
| CN112692541A (en) * | 2020-12-28 | 2021-04-23 | 国营第六一六厂 | Valve seat ring press-fitting method based on reverse deformation control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1949613A (en) * | 1930-06-23 | 1934-03-06 | Wilcox Rich Corp | Valve seat retainer |
| CN101117901A (en) * | 2007-09-04 | 2008-02-06 | 南京金城机械有限公司 | Fixing method for air valve seat and special mould therefor |
| CN102022157A (en) * | 2010-10-14 | 2011-04-20 | 广州柴油机厂股份有限公司 | Mounting process of medium-speed high-strength diesel engine cylinder cover water-cooled exhaust valve seat |
| CN102056706A (en) * | 2008-06-12 | 2011-05-11 | 瓦锡兰芬兰有限公司 | Method of reconditioning of cylinder head of an internal combustion engine |
-
2015
- 2015-03-27 CN CN201510141739.9A patent/CN104806373A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1949613A (en) * | 1930-06-23 | 1934-03-06 | Wilcox Rich Corp | Valve seat retainer |
| CN101117901A (en) * | 2007-09-04 | 2008-02-06 | 南京金城机械有限公司 | Fixing method for air valve seat and special mould therefor |
| CN102056706A (en) * | 2008-06-12 | 2011-05-11 | 瓦锡兰芬兰有限公司 | Method of reconditioning of cylinder head of an internal combustion engine |
| CN102022157A (en) * | 2010-10-14 | 2011-04-20 | 广州柴油机厂股份有限公司 | Mounting process of medium-speed high-strength diesel engine cylinder cover water-cooled exhaust valve seat |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332811A (en) * | 2015-12-10 | 2016-02-17 | 广西玉柴机器股份有限公司 | Diesel engine cylinder head |
| CN112692541A (en) * | 2020-12-28 | 2021-04-23 | 国营第六一六厂 | Valve seat ring press-fitting method based on reverse deformation control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |