CN105134550A - Compressor cylinder cover pad and machining method - Google Patents
Compressor cylinder cover pad and machining method Download PDFInfo
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- CN105134550A CN105134550A CN201510497436.0A CN201510497436A CN105134550A CN 105134550 A CN105134550 A CN 105134550A CN 201510497436 A CN201510497436 A CN 201510497436A CN 105134550 A CN105134550 A CN 105134550A
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- shim body
- beading
- cylinder cover
- sealing
- cover gasket
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Abstract
The invention discloses a compressor cylinder cover pad and a machining method, and aims to solve the defects of nonideal sealing effect and existence of gas and liquid leaking risk in a traditional cylinder cover pad. The compressor cylinder cover pad comprises a pad body, wherein the upper surface and the lower surface of the pad body are respectively plated with a layer of sealing film; and a lap of arc sealing pressure ribs is upwards projected on the upper surface of the pad body. The compressor cylinder cover pad adopts linear contact sealing, so that the sealing effect is good, and the gas and liquid leaking risk is not easy to be generated; and the cylinder cover pad is integrally molded, so that the structural strength is good.
Description
Technical field
The present invention relates to a kind of gasket seal, more particularly, it relates to a kind of compressor cylinder Cover Gasket and processing method.
Background technique
Often need between compressor cylinder body and cylinder head to connect cylinder Cover Gasket, to increase sealing effect, meet the seal request between cylinder block and cylinder head, prevent pressurized gas, lubricant oil and cooling liquid from scurrying out from the gap between them.Traditional cylinder Cover Gasket does not have potted line, the planeness of cylinder head sealing surface and cylinder head bolt moment of torsion is relied on to reach the requirement of sealing completely, therefore this kind of cylinder Cover Gasket is very high to the planarity requirements of sealing surface, manufacture processing difficulties, and be difficult to ensure that cylinder Cover Gasket sealing surface reaches higher planeness, sealing effect is undesirable, easily leaks air and the risk of leakage.
Chinese patent notification number CN201908741U, discloses a kind of metal composite gasket of cylinder head of internal combustion engine, combines clout body by upper synusia, middle synusia and the spot welding of lower synusia three-layer metal sheet.Upper synusia and lower synusia are corrosion resistant plate, middle synusia is carbon constructional steel plate, clout body arranges combustion chamber hole, water hole, oilhole, tapped hole, and middle synusia combustion chamber hole periphery presses a convex tendon, and upper synusia is synusia convex tendon place in combustion chamber hole periphery has flange to encase downwards.Seal ring is equipped with in oilhole and water hole, seal ring is the rubber seal having metal frame along height in the radial direction in neutral position, metal frame is clipped in the middle of synusia and lower synusia, the aperture of upper synusia, lower synusia is identical with the external diameter of rubber seal, and the aperture of middle synusia is identical with the external diameter of metal frame.The cylinder head gasket of this structure improves resistance to high temperature and tensile strength, rushes the problem of cylinder when solving internal combustion engine, but cylinder-top gasket be sealed into plane sealing, sealing effect is undesirable, easily leaks air and the risk of leakage.
Summary of the invention
Instant invention overcomes existing cylinder-top gasket sealing effect undesirable, there is the deficiency of the risk of gas leakage and leakage, provide a kind of compressor cylinder Cover Gasket and processing method, cylinder-top gasket is line contact sealing, good sealing effect, not easily leak air and the risk of leakage, and cylinder-top gasket is one-body molded, structural strength is good.
In order to solve the problems of the technologies described above, the present invention is by the following technical solutions: a kind of compressor cylinder Cover Gasket, comprise shim body, shim body upper surface and lower surface are all coated with one deck sealing film, and shim body upper surface is provided with the sealing beading of a circle upwards curved projection.
Shim body two all plated one deck sealing film on the surface up and down, considerably increase the sealing effect of cylinder Cover Gasket.Shim body is provided with a circle sealing beading, cylinder Cover Gasket is arranged between cylinder block and cylinder head and forms line contact sealing, good sealing effect, and the planarity requirements of countercylinder Cover Gasket reduces greatly, reduces manufacture difficulty.This compressor cylinder Cover Gasket is line contact sealing, good sealing effect, and not easily leak air and the risk of leakage, and cylinder-top gasket is one-body molded, structural strength is good.
As preferably, the rectangular structure of shim body, four angle positions of shim body are equipped with through hole, shim body is provided with a jack near neutral position, jack is arranged on the outside of sealing beading, and in shim body, four through hole edges are equipped with annular connection beading, is communicated with beading and seals beading to link together, be communicated with the curved convex structure of beading, be communicated with beading extreme higher position and seal beading extreme higher position at grade.The through hole edge of shim body arrange link together with sealing beading be communicated with beading, add shim body lead to the hole site be connected with miscellaneous part after sealability.
Another kind of scheme, shim body upper surface sealing and is provided with a circle outside beading is the semicircular seal ring mounting groove of indent.Shim body outward edge is equidistantly provided with tabs and some lower tabs on several, and upper tabs and lower tabs are arranged alternately, the upwards bending of upper tabs, lower tabs downward bending.
Seal ring mounting groove facilitates the installation of seal ring, before shim body is installed to cylinder block and cylinder head, first in seal ring mounting groove, load seal ring, seal ring is as auxiliary seal, make cylinder Cover Gasket reach the sealing effect of dual fail-safe, ensure that the sealability of cylinder Cover Gasket.Upper tabs and the lower tabs at shim body edge have certain elasticity; it is more closely reliable after shim body is installed; seal beading simultaneously and serve certain protective action, prevent from sealing beading stressed excessive and occur the lower phenomenon of damaging by pressure, ensure that the sealability of sealing beading.
The third scheme, shim body edge is provided with the turnover body upwards turned down, turnover body comprises sealed department and supporting portion, sealed department upper surface is plane structure and flushes with sealing beading extreme higher position, sealed department one end is connected with shim body, and the other end connects the supporting portion of turnover downwards, and supporting portion lower surface is fitted on shim body upper surface, form pressure accumulation chamber between sealed department, supporting portion, shim body, supporting portion and sealed department link position are equidistantly provided with some slotted eyes be communicated with pressure accumulation chamber.Turnover body thickness reduces from shim body connecting end gradually to the other end.
After cylinder Cover Gasket is installed, sealed department is clamped between cylinder block and cylinder head tightly, and countercylinder Cover Gasket seals further, improves its sealability.When high-voltage oil liquid spills into cylinder Cover Gasket, high-voltage oil liquid enters in pressure accumulation chamber from slotted eye, and high-voltage oil liquid acts on sealed department, sealed department is upwarded pressure, sealed department upper surface contacts more tight with cylinder head, improve sealing effect, prevent oil liquid leakage.
A processing method for cylinder Cover Gasket, the first step, adopts 08F rimming steel to be base material, cuts out, cut out and meet cylinder-top gasket size the base material after plated film; Second step, all plates one deck hydrogenated nitrile-butadiene rubber film on two surfaces up and down of base material; 3rd step, adopts punching equipment to carry out punch operation to the base material after cutting out, stamps out sealing pressing muscle, complete the processing of cylinder Cover Gasket after punching completes.Cylinder-top gasket is one-body molded, and structural strength is good, easy to process, and processing cost is low.
As preferably, after sealing beading machines, shim body sealing and cuts out a circle outside beading is the semicircular seal ring mounting groove of indent; Some equally spaced interval troughs are stamped out at shim body edge after seal ring mounting groove machines; After interval trough punching press completes, bending is carried out to shim body edge, form the upper tabs and lower tabs that are arranged alternately, the upwards bending of upper tabs, lower tabs downward bending.
Seal ring mounting groove facilitates the installation of seal ring, before shim body is installed to cylinder block and cylinder head, first in seal ring mounting groove, load seal ring, seal ring is as auxiliary seal, make cylinder Cover Gasket reach the sealing effect of dual fail-safe, ensure that the sealability of cylinder Cover Gasket.Upper tabs and the lower tabs at shim body edge have certain elasticity; it is more closely reliable after shim body is installed; seal beading simultaneously and serve certain protective action, prevent from sealing beading stressed excessive and occur the lower phenomenon of damaging by pressure, ensure that the sealability of sealing beading.
As preferably, after base material has been cut out, grinding process is carried out in shim body top surface edge position, make the turnover body that shim body edge formation thickness reduces from inside to outside gradually; After sealing beading machines, turnover outer rim is upwards turned down 180 degree and form supporting portion, again turnover body and shim body link position are upwards turned down 180 degree, make turnover body upper surface parallel with shim body upper surface, supporting portion lower surface is fitted on shim body upper surface.
After cylinder Cover Gasket is installed, sealed department is clamped between cylinder block and cylinder head tightly, and countercylinder Cover Gasket seals further, improves its sealability.When high-voltage oil liquid spills into cylinder Cover Gasket, high-voltage oil liquid enters in pressure accumulation chamber from slotted eye, and high-voltage oil liquid acts on sealed department, sealed department is upwarded pressure, sealed department upper surface contacts more tight with cylinder head, improve sealing effect, prevent oil liquid leakage.
Compared with prior art, the invention has the beneficial effects as follows: compressor cylinder Cover Gasket is line contact sealing, good sealing effect, not easily leak air and the risk of leakage, and cylinder-top gasket is one-body molded, structural strength is good.
Accompanying drawing explanation
Fig. 1 is the plan view of embodiments of the invention 1;
Fig. 2 is the A-A partial sectional view of Fig. 1 of the present invention;
Fig. 3 is the plan view of embodiments of the invention 2;
Fig. 4 is the B-B partial sectional view of Fig. 3 of the present invention;
Fig. 5 is the side structure schematic diagram of the shim body of embodiments of the invention 2;
Fig. 6 is the plan view of embodiments of the invention 3;
Fig. 7 is the C-C partial sectional view of Fig. 6 of the present invention;
In figure: 1, shim body, 2, sealing film, 3, sealing beading, 4, through hole, 5, jack, 6, be communicated with beading, 7, seal ring mounting groove, 8, upper tabs, 9, lower tabs, 10, turnover body, 11, sealed department, 12, supporting portion, 13, pressure accumulation chamber, 14, slotted eye.
Embodiment
Below by specific embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is further described specifically:
Embodiment 1: a kind of compressor cylinder Cover Gasket (see accompanying drawing 1, accompanying drawing 2), and comprise shim body 1, shim body upper surface and lower surface are all coated with one deck sealing film 2, and shim body upper surface is provided with the sealing beading 3 of a circle upwards curved projection.The rectangular structure of shim body, four angle positions of shim body are equipped with through hole 4, and shim body is provided with a jack 5 near neutral position, and jack is arranged on the outside of sealing beading, and sealing beading takes the shape of the letter U in jack edge section structure.In shim body, four through hole edges are equipped with annular connection beading 6, are communicated with beading and seal beading to link together, and are communicated with the curved convex structure of beading, and connection beading extreme higher position and sealing beading extreme higher position are at grade.
Shim body two all plated one deck sealing film on the surface up and down, considerably increase the sealing effect of cylinder Cover Gasket.Shim body is provided with a circle sealing beading, cylinder Cover Gasket is arranged between cylinder block and cylinder head and forms line contact sealing, good sealing effect, and the planarity requirements of countercylinder Cover Gasket reduces greatly, reduces manufacture difficulty.This compressor cylinder Cover Gasket is line contact sealing, good sealing effect, and not easily leak air and the risk of leakage, and cylinder-top gasket is one-body molded, structural strength is good.
A processing method for cylinder Cover Gasket, the first step, adopts 08F rimming steel to be base material, cuts out, cut out and meet cylinder-top gasket size the base material after plated film; Second step, all plates one deck hydrogenated nitrile-butadiene rubber film on two surfaces up and down of base material; 3rd step, adopts punching equipment to carry out punch operation to the base material after cutting out, stamps out sealing pressing muscle, complete the processing of cylinder Cover Gasket after punching completes.Cylinder-top gasket is one-body molded, and structural strength is good, easy to process, and processing cost is low.
Embodiment 2: a kind of compressor cylinder Cover Gasket (see accompanying drawing 3, accompanying drawing 4, accompanying drawing 5), comprise shim body 1, shim body upper surface and lower surface are all coated with one deck sealing film 2, and shim body upper surface is provided with the sealing beading 3 of a circle upwards curved projection.The rectangular structure of shim body, four angle positions of shim body are equipped with through hole 4, and shim body is provided with a jack 5 near neutral position, and jack is arranged on the outside of sealing beading, and sealing beading takes the shape of the letter U in jack edge section structure.In shim body, four through hole edges are equipped with annular connection beading 6, are communicated with beading and seal beading to link together, and are communicated with the curved convex structure of beading, and connection beading extreme higher position and sealing beading extreme higher position are at grade.Shim body upper surface sealing and is provided with a circle outside beading is the semicircular seal ring mounting groove 7 of indent.Shim body outward edge is equidistantly provided with tabs 8 and some lower tabs 9 on several, and upper tabs and lower tabs are arranged alternately, the upwards bending of upper tabs, lower tabs downward bending.
Seal ring mounting groove facilitates the installation of seal ring, before shim body is installed to cylinder block and cylinder head, first in seal ring mounting groove, load seal ring, seal ring is as auxiliary seal, make cylinder Cover Gasket reach the sealing effect of dual fail-safe, ensure that the sealability of cylinder Cover Gasket.Upper tabs and the lower tabs at shim body edge have certain elasticity; it is more closely reliable after shim body is installed; seal beading simultaneously and serve certain protective action, prevent from sealing beading stressed excessive and occur the lower phenomenon of damaging by pressure, ensure that the sealability of sealing beading.
A processing method for cylinder Cover Gasket, the first step, adopts 08F rimming steel to be base material, cuts out, cut out and meet cylinder-top gasket size the base material after plated film; Second step, all plates one deck hydrogenated nitrile-butadiene rubber film on two surfaces up and down of base material; 3rd step, adopts punching equipment to carry out punch operation to the base material after cutting out, stamps out sealing pressing muscle after punching completes; After sealing beading machines, shim body sealing and cuts out a circle outside beading is the semicircular seal ring mounting groove of indent; Some equally spaced interval troughs are stamped out at shim body edge after seal ring mounting groove machines; Carry out bending to shim body edge after interval trough punching press completes, form the upper tabs and lower tabs that are arranged alternately, the upwards bending of upper tabs, lower tabs downward bending, completes the processing of cylinder Cover Gasket.
Embodiment 3: a kind of compressor cylinder Cover Gasket (see accompanying drawing 6, accompanying drawing 7), and comprise shim body 1, shim body upper surface and lower surface are all coated with one deck sealing film 2, and shim body upper surface is provided with the sealing beading 3 of a circle upwards curved projection.The rectangular structure of shim body, four angle positions of shim body are equipped with through hole 4, and shim body is provided with a jack 5 near neutral position, and jack is arranged on the outside of sealing beading, and sealing beading takes the shape of the letter U in jack edge section structure.In shim body, four through hole edges are equipped with annular connection beading 6, are communicated with beading and seal beading to link together, and are communicated with the curved convex structure of beading, and connection beading extreme higher position and sealing beading extreme higher position are at grade.Shim body edge is provided with the turnover body 10 upwards turned down, turnover body comprises sealed department 11 and supporting portion 12, sealed department upper surface is plane structure and flushes with sealing beading extreme higher position, sealed department one end is connected with shim body, the other end connects the supporting portion of turnover downwards, supporting portion lower surface is fitted on shim body upper surface, forms pressure accumulation chamber 13 between sealed department, supporting portion, shim body, and supporting portion and sealed department link position are equidistantly provided with some slotted eyes 14 be communicated with pressure accumulation chamber.Turnover body thickness reduces from shim body connecting end gradually to the other end.
After cylinder Cover Gasket is installed, sealed department is clamped between cylinder block and cylinder head tightly, and countercylinder Cover Gasket seals further, improves its sealability.When high-voltage oil liquid spills into cylinder Cover Gasket, high-voltage oil liquid enters in pressure accumulation chamber from slotted eye, and high-voltage oil liquid acts on sealed department, sealed department is upwarded pressure, sealed department upper surface contacts more tight with cylinder head, improve sealing effect, prevent oil liquid leakage.
A processing method for cylinder Cover Gasket, the first step, adopts 08F rimming steel to be base material, cuts out, cut out and meet cylinder-top gasket size the base material after plated film; After base material has been cut out, grinding process is carried out in shim body top surface edge position, make the turnover body that shim body edge formation thickness reduces from inside to outside gradually; Second step, all plates one deck hydrogenated nitrile-butadiene rubber film on two surfaces up and down of base material; 3rd step, punching equipment is adopted to carry out punch operation to the base material after cutting out, sealing pressing muscle is stamped out after punching completes, after sealing beading machines, turnover outer rim is upwards turned down 180 degree and form supporting portion, then turnover body and shim body link position are upwards turned down 180 degree, make turnover body upper surface parallel with shim body upper surface, supporting portion lower surface is fitted on shim body upper surface, completes the processing of cylinder Cover Gasket.
Above-described embodiment is three kinds of preferably schemes of the present invention, not does any pro forma restriction to the present invention, also has other variant and remodeling under the prerequisite not exceeding the technological scheme described in claim.
Claims (9)
1. a compressor cylinder Cover Gasket, comprises shim body, it is characterized in that, shim body upper surface and lower surface are all coated with one deck sealing film, and shim body upper surface is provided with the sealing beading of a circle upwards curved projection.
2. compressor cylinder Cover Gasket according to claim 1, it is characterized in that, the rectangular structure of shim body, four angle positions of shim body are equipped with through hole, shim body is provided with a jack near neutral position, jack is arranged on the outside of sealing beading, in shim body, four through hole edges are equipped with annular connection beading, be communicated with beading and seal beading and link together, be communicated with the curved convex structure of beading, be communicated with beading extreme higher position and seal beading extreme higher position at grade.
3. compressor cylinder Cover Gasket according to claim 1, is characterized in that, shim body upper surface sealing and is provided with a circle outside beading is the semicircular seal ring mounting groove of indent.
4. the compressor cylinder Cover Gasket according to claim 1 or 2 or 3, is characterized in that, shim body outward edge is equidistantly provided with tabs and some lower tabs on several, and upper tabs and lower tabs are arranged alternately, the upwards bending of upper tabs, lower tabs downward bending.
5. the compressor cylinder Cover Gasket according to claim 1 or 2 or 3, it is characterized in that, shim body edge is provided with the turnover body upwards turned down, turnover body comprises sealed department and supporting portion, sealed department upper surface is plane structure and flushes with sealing beading extreme higher position, sealed department one end is connected with shim body, the other end connects the supporting portion of turnover downwards, supporting portion lower surface is fitted on shim body upper surface, form pressure accumulation chamber between sealed department, supporting portion, shim body, supporting portion and sealed department link position are equidistantly provided with some slotted eyes be communicated with pressure accumulation chamber.
6. compressor cylinder Cover Gasket according to claim 5, is characterized in that, turnover body thickness reduces from shim body connecting end gradually to the other end.
7. a processing method for the cylinder Cover Gasket described in claim 1 to 6 any one, is characterized in that, the first step, adopts 08F rimming steel to be base material, cuts out, cut out and meet cylinder-top gasket size the base material after plated film; Second step, all plates one deck hydrogenated nitrile-butadiene rubber film on two surfaces up and down of base material; 3rd step, adopts punching equipment to carry out punch operation to the base material after cutting out, stamps out sealing pressing muscle, complete the processing of cylinder Cover Gasket after punching completes.
8. the processing method of compressor cylinder Cover Gasket according to claim 7, is characterized in that, after sealing beading machines, shim body sealing and cuts out a circle outside beading is the semicircular seal ring mounting groove of indent; Some equally spaced interval troughs are stamped out at shim body edge after seal ring mounting groove machines; After interval trough punching press completes, bending is carried out to shim body edge, form the upper tabs and lower tabs that are arranged alternately, the upwards bending of upper tabs, lower tabs downward bending.
9. the processing method of compressor cylinder Cover Gasket according to claim 7, is characterized in that, after base material has been cut out, grinding process is carried out in shim body top surface edge position, makes the turnover body that shim body edge formation thickness reduces from inside to outside gradually; After sealing beading machines, turnover outer rim is upwards turned down 180 degree and form supporting portion, again turnover body and shim body link position are upwards turned down 180 degree, make turnover body upper surface parallel with shim body upper surface, supporting portion lower surface is fitted on shim body upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497436.0A CN105134550A (en) | 2015-08-13 | 2015-08-13 | Compressor cylinder cover pad and machining method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510497436.0A CN105134550A (en) | 2015-08-13 | 2015-08-13 | Compressor cylinder cover pad and machining method |
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| Publication Number | Publication Date |
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| CN105134550A true CN105134550A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510497436.0A Pending CN105134550A (en) | 2015-08-13 | 2015-08-13 | Compressor cylinder cover pad and machining method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834840A (en) * | 1972-06-07 | 1974-09-10 | E Hartley | Compact reciprocating piston machine |
| CN202391686U (en) * | 2011-12-29 | 2012-08-22 | 青岛宝兰格制冷有限公司 | Reciprocating compressor with novel cylinder cover gasket |
| CN104160190A (en) * | 2012-02-03 | 2014-11-19 | 爱尔铃克铃尔股份公司 | Metal flat seal |
| CN104736902A (en) * | 2012-10-30 | 2015-06-24 | 联邦摩高密封系统公司 | Metal-elastomer seal with integrated dirt and media sealing |
| CN205013232U (en) * | 2015-08-13 | 2016-02-03 | 杭州钱江压缩机有限公司 | Compressor cylinder head pad structure |
-
2015
- 2015-08-13 CN CN201510497436.0A patent/CN105134550A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834840A (en) * | 1972-06-07 | 1974-09-10 | E Hartley | Compact reciprocating piston machine |
| CN202391686U (en) * | 2011-12-29 | 2012-08-22 | 青岛宝兰格制冷有限公司 | Reciprocating compressor with novel cylinder cover gasket |
| CN104160190A (en) * | 2012-02-03 | 2014-11-19 | 爱尔铃克铃尔股份公司 | Metal flat seal |
| CN104736902A (en) * | 2012-10-30 | 2015-06-24 | 联邦摩高密封系统公司 | Metal-elastomer seal with integrated dirt and media sealing |
| CN205013232U (en) * | 2015-08-13 | 2016-02-03 | 杭州钱江压缩机有限公司 | Compressor cylinder head pad structure |
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| CB02 | Change of applicant information |
Address after: Hangzhou City, Zhejiang province 311000 industrial city of Yuhang Xianlin holy Road No. 1 Applicant after: Hangzhou Qianjiang Compressor Group Co. Ltd. Address before: Hangzhou City, Zhejiang province 311000 Yuhang District of Yuhang City Industrial Road No. 1 Xianlin Shrine Applicant before: Hangzhou Qianjiang Compressor Co., Ltd. |
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| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |