CN113339096B - Valve seat ring mounting structure - Google Patents
Valve seat ring mounting structure Download PDFInfo
- Publication number
- CN113339096B CN113339096B CN202110681395.6A CN202110681395A CN113339096B CN 113339096 B CN113339096 B CN 113339096B CN 202110681395 A CN202110681395 A CN 202110681395A CN 113339096 B CN113339096 B CN 113339096B
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- CN
- China
- Prior art keywords
- valve seat
- seat ring
- ring
- barb structure
- barb
- 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.)
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Classifications
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Lift Valve (AREA)
Abstract
The invention provides a valve seat ring mounting structure which comprises a valve seat ring hole, a seat ring clamping ring and a valve seat ring, wherein the seat ring clamping ring is used as an intermediate body and is connected with the valve seat ring and the valve seat ring hole; the middle part of the inner side surface of the seat ring clamping ring is provided with a first barb structure, and the top of the seat ring clamping ring is provided with a second barb structure opposite to the first barb structure; the inboard in valve seat circle hole is equipped with the second draw-in groove that corresponds with the second barb structure, be equipped with the first draw-in groove that corresponds with first barb structure on the outer wall of valve seat circle, the top inboard of valve seat circle leaves the groove of dodging that is used for dodging the second barb structure. According to the invention, through the barb structure and the small interference, a method for generating friction force by using large interference to avoid the seat ring from falling off in the original scheme is replaced, the stress near the valve seat ring hole of the cylinder cover is reduced, and the reliable installation of the valve seat ring under the condition of small interference is realized.
Description
Technical Field
The invention belongs to the technical field of engine air inlet systems, and particularly relates to a valve seat ring mounting structure.
Background
The internal combustion engine generally adopts a valve seat ring structure to realize valve sealing and bear high-speed impact when a valve is seated, and the valve seat ring is usually made of a material with better abrasion resistance and assembled in a valve seat ring hole by an interference method.
In order to ensure that the valve does not fall off in the working process, a larger interference magnitude is adopted generally, so that a larger additional stress is borne near a valve seat ring hole of the cylinder cover, and the reliability of the cylinder cover is reduced to a certain extent.
Disclosure of Invention
In view of this, the present invention is directed to a valve seat insert mounting structure to achieve reliable mounting of a valve seat insert under a small interference condition.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a valve seat ring mounting structure comprises a valve seat ring hole, a seat ring clamping ring and a valve seat ring, wherein the seat ring clamping ring is used as an intermediate body and is connected with the valve seat ring and the valve seat ring hole; the middle part of the inner side surface of the seat ring clamping ring is provided with a first barb structure, and the top of the seat ring clamping ring is provided with a second barb structure opposite to the first barb structure; the inboard in valve seat circle hole is equipped with the second draw-in groove that corresponds with the second barb structure, be equipped with the first draw-in groove that corresponds with first barb structure on the outer wall of valve seat circle, the top inboard of valve seat circle leaves the groove of dodging that is used for dodging the second barb structure.
Further, a plurality of first barb structures are evenly arranged at the middle part of seat circle snap ring, and a plurality of second barb structures are evenly arranged at the top of seat circle snap ring, the groove of dodging that corresponds with the second barb structure is evenly arranged at valve seat top.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, by using the barb structure and the small interference, a method for generating friction force by using large interference to avoid the seat ring from falling off in the original scheme is replaced, the stress near the valve seat ring hole of the cylinder cover is reduced, and the reliable installation of the valve seat ring under the condition of small interference is realized.
(2) The valve seat ring mounting structure is easy to disassemble, does not damage the inner surface of the valve seat ring hole, and is low in maintenance cost.
(3) The combined structure of the invention can reduce the precision requirement of the valve seat ring hole, and the centering action on the seat ring improves the matching of the valve seat ring and the valve because the valve rotates to a certain degree and strikes the valve seat ring through the valve sealing strip in the working process, thereby reducing the precision requirement of the valve seat ring hole.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional view of a valve seat insert mounting arrangement according to an embodiment of the present invention;
FIG. 2 is a schematic view of a race snap ring according to an embodiment of the present invention;
FIG. 3 is a schematic view of a valve seat insert according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a seat ring snap ring and valve seat ring combination according to an embodiment of the invention.
Description of the reference numerals:
valve seat circle hole 1, seat circle snap ring 2, valve seat circle 3, second barb structure 4, groove 6 is dodged to first barb structure 5.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Aiming at the defect that the reliability of the cylinder cover is reduced due to the fact that the valve seat ring is installed through large interference, the invention provides a valve seat ring installation structure through a barb structure and small installation interference, as shown in figure 1, the valve seat ring installation structure comprises a valve seat ring hole 1, a seat ring clamping ring 2 and a valve seat ring 3;
the seat ring clamping ring 2 is used as an intermediate body and is connected with the valve seat ring 3 and the valve seat ring hole 1; specifically, as shown in fig. 2, a first barb structure 5 is arranged in the middle of the inner side surface of the seat ring snap ring 2, and a second barb structure 4 opposite to the first barb structure 5 is arranged at the top of the seat ring snap ring 2;
a second clamping groove corresponding to the second barb structure 4 is formed in the inner side of the valve seat ring hole 1 and used for fixing the second barb structure 4; be equipped with the first draw-in groove that corresponds with first barb structure 5 on the outer wall of valve seat circle 3, the top inboard of valve seat circle 3 is left and is dodged the groove for dodge the second barb structure 4 at seat circle snap ring 2 top when pressing into valve seat circle hole 1 at seat circle snap ring 2.
A plurality of first barb structures 4 are evenly arranged at the middle part of seat circle snap ring 2, and a plurality of second barb structures 5 are evenly arranged at the top of seat circle snap ring 2, as shown in fig. 3, the groove 6 of dodging that corresponds with second barb structures 5 is evenly arranged at 3 tops of valve seat circle.
During the assembly, through the barb structure, along 3 arrow directions shown of picture 3 with valve seat insert 3 seat insert snap ring 2 of impressing, make 2 inboard first barb structures 5 of seat insert snap ring fall into the first draw-in groove of 3 outer walls of valve seat insert, realize the pre-assembly of two parts. During assembly, the second inverted thorn structure 4 at the upper part of the seat ring retainer ring 2 is required to fall into the avoiding groove 6 at the upper part of the valve seat ring 3. Then, the combined structure is pressed into the valve seat hole 1 along the direction shown by an arrow in fig. 4, so that the second barb structure 4 at the upper part of the seat ring snap ring 2 falls into a second clamping groove in the valve seat hole 1. The reverse barb structure of seat circle snap ring 2 inner and outer wall realizes that the axial of valve seat circle is spacing.
According to the invention, the valve seat ring 3 and the seat ring clamping ring 2, and the seat ring clamping ring 2 and the valve seat ring hole 1 are in barb structures, so that reliable connection is realized. The valve seat ring 3 with the structure has small installation interference force.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (2)
1. A valve seat insert mounting structure characterized in that: the valve seat ring clamping device comprises a valve seat ring hole (1), a seat ring clamping ring (2) and a valve seat ring (3), wherein the seat ring clamping ring (2) is used as an intermediate body and is used for connecting the valve seat ring (3) with the valve seat ring hole (1);
a first barb structure (5) is arranged in the middle of the inner side surface of the seat ring clamping ring (2), and a second barb structure (4) opposite to the first barb structure (5) is arranged at the top of the seat ring clamping ring (2);
the inboard of valve seat circle hole (1) is equipped with the second draw-in groove that corresponds with second barb structure (4), be equipped with the first draw-in groove that corresponds with first barb structure (5) on the outer wall of valve seat circle (3), the top inboard of valve seat circle (3) is left and is used for dodging groove (6) of dodging second barb structure (4).
2. A valve seat ring mounting structure according to claim 1, wherein: a plurality of first barb structures (5) are evenly arranged at the middle part of seat circle snap ring (2), and a plurality of second barb structures (4) are evenly arranged at the top of seat circle snap ring (2), the groove of dodging (6) that correspond with second barb structures (4) are evenly arranged at valve seat circle (3) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110681395.6A CN113339096B (en) | 2021-06-18 | 2021-06-18 | Valve seat ring mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110681395.6A CN113339096B (en) | 2021-06-18 | 2021-06-18 | Valve seat ring mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113339096A CN113339096A (en) | 2021-09-03 |
| CN113339096B true CN113339096B (en) | 2022-08-26 |
Family
ID=77477800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110681395.6A Active CN113339096B (en) | 2021-06-18 | 2021-06-18 | Valve seat ring mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113339096B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3135447A1 (en) * | 1981-08-31 | 1983-03-17 | Gebrüder Sulzer AG, 8401 Winterthur | "METHOD FOR MONITORING THE TIGHTNESS OF A VALVE WITH A VALVE PLATE AND A VALVE SEAT IN AN INTERNAL COMBUSTION ENGINE, AND DEVICE FOR CARRYING OUT THE METHOD" |
| JPH0296402U (en) * | 1989-01-19 | 1990-08-01 | ||
| JP2014088793A (en) * | 2012-10-29 | 2014-05-15 | Mitsubishi Motors Corp | Valve seat and cylinder head |
| CN107676187A (en) * | 2016-08-01 | 2018-02-09 | 罗帅 | A kind of cylinder head, adjustable valve seat, variable compression ratio engine |
| CN211449977U (en) * | 2019-12-31 | 2020-09-08 | 盘锦大奔金蚁橡胶制品有限公司 | Anti-pulling drilling rubber pipe assembly |
-
2021
- 2021-06-18 CN CN202110681395.6A patent/CN113339096B/en active Active
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| Publication number | Publication date |
|---|---|
| CN113339096A (en) | 2021-09-03 |
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