CN103397948A - Cylinder cover bolt installation structure - Google Patents
Cylinder cover bolt installation structure Download PDFInfo
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- CN103397948A CN103397948A CN2013102717118A CN201310271711A CN103397948A CN 103397948 A CN103397948 A CN 103397948A CN 2013102717118 A CN2013102717118 A CN 2013102717118A CN 201310271711 A CN201310271711 A CN 201310271711A CN 103397948 A CN103397948 A CN 103397948A
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- cylinder head
- cylinder cover
- head bolt
- cushion block
- cylinder
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a cylinder cover bolt installation structure which comprises a cylinder cover, a cylinder cover bolt and a cylinder cover bolt cushion block. The cylinder cover blot penetrates the cylinder cover and enables the cylinder cover to be fixed to an air cylinder to form a combustion chamber. The cylinder cover bolt cushion block is arranged between the cylinder cover and the cylinder cover bolt. The cylinder cover bolt installation structure is simple and reasonable in installation structure, the cylinder cover bolt cushion block is additionally arranged between the cylinder cover bolt and the top face of the cylinder cover, so that the contact stress between the flange face of the cylinder cover bolt and the top face of the cylinder cover is reduced, and the top face of the cylinder cover can be prevented from being collapsed. Meanwhile, the cylinder cover bolt cushion block is made of high-strength materials, so that the cylinder cover bolt cushion block can directly bear high pressure of the cylinder cover bolt, but cannot be collapsed, and meanwhile the top face of the cylinder cover cannot be collapsed.
Description
Technical field
The present invention relates to engine art, particularly a kind of cylinder head bolt mounting structure.
Background technique
Engine cylinder cap is the important structure assembly of explosive motor, is used for closed cylinder and form firing chamber.The overhead valve engine cylinder head, except cooling jacket, also have valve gear, air inlet and exhaust passage etc.The cylinder head effect: cylinder cap belongs to distribution device at internal-combustion engine, is mainly closed cylinder top, forms firing chamber.And also has the support of air inlet-outlet pipe as camshaft and pitman arm shaft.Be mainly that air is drawn onto cylinder interior, spark plug is lighted burning mixture, drives the piston acting, and waste gas is discharged from outlet pipe.
In the motor mechanisms of " cylinder one lid ", each cylinder head of motor is established a cylinder head, and pass straight down cylinder head by cylinder head bolt and be fixed on cylinder and form firing chamber, the flanged surface of cylinder head bolt tightly is crimped on the cylinder head end face.
But limited by engine arrangement, too large (less) that causes the flanged surface of cylinder head bolt not design, make the contact stress of cylinder head bolt flanged surface and cylinder head end face excessive, in addition, the material hardness of cylinder head bolt, usually greater than cylinder head, therefore often causes the cylinder head end face by conquassation.
Summary of the invention
The present invention is in order to overcome defect in above-mentioned prior art, provides a kind of simple and reasonable, can reduce the contact stress of cylinder head bolt flanged surface and cylinder head end face, prevents that the cylinder head end face is by the cylinder head bolt mounting structure of conquassation.
, for achieving the above object,, according to the invention provides a kind of cylinder head bolt mounting structure, comprising:
Cylinder head;
Cylinder head bolt, pass cylinder head and be fixed on cylinder and form firing chamber;
The cylinder head bolt cushion block, be laid between cylinder head and cylinder head bolt.
In technique scheme, the shape of cylinder head bolt cushion block and the end face of cylinder head are adaptive.
In technique scheme, cylinder head bolt cushion block middle part has the bit space of allowing.
In technique scheme, cylinder head bolt cushion block ring wall offers the cylinder head bolt mounting hole corresponding with the cylinder head end face.
In technique scheme, the cylinder head bolt cushion block is selected than the high high-strength material of cylinder head material hardness.
In technique scheme, the cylinder head bolt cushion block is selected the 42CrMo steel.
Compared with prior art, the present invention has following beneficial effect: this cylinder head bolt mounting structure advantages of simple, by set up the cylinder head bolt cushion block between the gentle top surface of cylinder cover of cylinder head bolt,, to reduce the contact stress of cylinder head bolt flanged surface and cylinder head end face, prevent that the cylinder head end face is by conquassation.Simultaneously, the high-strength material manufacturing of cylinder head bolt cushion block, make the cylinder head bolt cushion block can directly bear the higher pressure of cylinder head bolt and not by conquassation, makes again the cylinder head end face can be by conquassation simultaneously.
Description of drawings
Fig. 1 is the schematic diagram of cylinder head bolt mounting structure of the present invention;
Fig. 2 is the cylinder head bolt cushion block schematic diagram of cylinder head bolt mounting structure of the present invention;
Description of drawings:
The 1-cylinder head, 2-cylinder head bolt, 3-cylinder head bolt cushion block, 31-cylinder head bolt mounting hole.
Embodiment
, below in conjunction with accompanying drawing, a specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention is not subjected to the restriction of embodiment.It will be appreciated that, mentioned in following mode of execution of the present invention " on ", D score, " left side ", " right side ", " front " and " reverse side " be all take the direction shown in each figure as benchmark, these words that are used for limiting direction are only for convenience of explanation, do not represent the restriction to the concrete technological scheme of the present invention.
Cylinder head bolt mounting structure advantages of simple of the present invention,, by set up the cylinder head bolt cushion block between the gentle top surface of cylinder cover of cylinder head bolt,, to reduce the contact stress of cylinder head bolt flanged surface and cylinder head end face, prevent that the cylinder head end face is by conquassation.Simultaneously, the high-strength material manufacturing of cylinder head bolt cushion block, make the cylinder head bolt cushion block can directly bear the higher pressure of cylinder head bolt and not by conquassation, makes again the cylinder head end face can be by conquassation simultaneously.
Below detailed description by way of example but unrestriced mode has illustrated the disclosure, should be understood that various aspect of the present disclosure can be by independent realization or the realization of with other aspects, being combined.This specification clearly enables those skilled in the art to make and uses us to believe for new and non-obvious improvement, describe some embodiments, alternative, modification, alternative and system applies, comprised the current best mode that is considered to carry out the inventive principle of describing in this specification.When describing element or feature and/or embodiment, titled with " one " " one " " being somebody's turn to do " and " described ", be intended to represent to have one or more in element or feature.Term " comprises " that " comprising " and " having " is intended to is comprising property, and also has extra element or feature beyond being illustrated in those specifically described elements or feature.
as shown in Figure 1, the engine cylinder cap that this cylinder head bolt mounting structure relates generally to " cylinder one lid " passes straight down cylinder head by cylinder head bolt and is fixed on cylinder and forms firing chamber, the flanged surface of cylinder head bolt tightly is crimped on the mounting structure on the cylinder head end face, its concrete structure comprises: cylinder head 1 and cylinder head bolt 2, and be laid in cylinder head bolt cushion block 3 between cylinder head 1 and cylinder head bolt 2, cylinder head 1 is passed straight down cylinder head 1 by cylinder head bolt 2 and is fixed on cylinder and forms firing chamber, and cylinder head bolt cushion block 3 is laid between cylinder head 1 and cylinder head bolt 2, make cylinder head bolt 2 flanged surfaces that originally tightly are crimped on cylinder head 1 end face, be crimped onto on cylinder head bolt cushion block 3, to reduce the contact stress of cylinder head bolt flanged surface and cylinder head end face, prevent that the cylinder head end face is by conquassation.Simultaneously, the high-strength material manufacturing of cylinder head bolt cushion block, make the cylinder head bolt cushion block can directly bear the higher pressure of cylinder head bolt and not by conquassation, makes again the cylinder head end face can be by conquassation simultaneously.
As shown in Figure 2, the end face of the shape of cylinder head bolt cushion block 3 and cylinder head 1 is adaptive, is extending upward of its end face.The middle part of cylinder head bolt cushion block 3 is the bit space that allows of valve gear, air inlet and exhaust passage etc., and ring wall offers the cylinder head bolt mounting hole 31 corresponding with cylinder head 1 end face and other mounting hole.Cylinder head bolt cushion block 3 is selected high-strength material (can be higher than the hardness of cylinder head 1 material), 42CrMo steel for example, it belongs to Ultrastrength Steel, has high strength and toughness, hardenability is also better, without obvious temper brittleness, higher fatigue limit and anti-repeatedly impact capacity are arranged after quenching with Subsequent tempering, low-temperature impact toughness is good.The high-strength material that cylinder head bolt cushion block 3 is selected can bear the pressure of cylinder head bolt,, by increasing the cylinder head bolt cushion block, makes the pressure that reduces to act on the cylinder head end face, eliminates the phenomenon because of the excessive conquassation cylinder head of cylinder head bolt pressure end face.
To sum up, this cylinder head bolt mounting structure advantages of simple,, by set up the cylinder head bolt cushion block between the gentle top surface of cylinder cover of cylinder head bolt,, to reduce the contact stress of cylinder head bolt flanged surface and cylinder head end face, prevent that the cylinder head end face is by conquassation.Simultaneously, the high-strength material manufacturing of cylinder head bolt cushion block, make the cylinder head bolt cushion block can directly bear the higher pressure of cylinder head bolt and not by conquassation, makes again the cylinder head end face can be by conquassation simultaneously.
Above disclosed be only several specific embodiment of the present invention, still, the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (6)
1. a cylinder head bolt mounting structure, is characterized in that, comprising:
Cylinder head;
Cylinder head bolt, pass cylinder head and be fixed on cylinder and form firing chamber;
The cylinder head bolt cushion block, be laid between cylinder head and cylinder head bolt.
2. cylinder head bolt mounting structure according to claim 1, it is characterized in that: the shape of described cylinder head bolt cushion block and the end face of cylinder head are adaptive.
3. cylinder head bolt mounting structure according to claim 1, is characterized in that: have the bit space of allowing in the middle part of described cylinder head bolt cushion block.
4. cylinder head bolt mounting structure according to claim 3, it is characterized in that: described cylinder head bolt cushion block ring wall offers the cylinder head bolt mounting hole corresponding with the cylinder head end face.
5. the described cylinder head bolt mounting structure of any one according to claim 1 to 4, it is characterized in that: described cylinder head bolt cushion block is selected than the high high-strength material of cylinder head material hardness.
6. cylinder head bolt mounting structure according to claim 5, it is characterized in that: described cylinder head bolt cushion block is selected the 42CrMo steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271711.8A CN103397948B (en) | 2013-07-01 | 2013-07-01 | Cylinder cover bolt installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271711.8A CN103397948B (en) | 2013-07-01 | 2013-07-01 | Cylinder cover bolt installation structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103397948A true CN103397948A (en) | 2013-11-20 |
| CN103397948B CN103397948B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310271711.8A Active CN103397948B (en) | 2013-07-01 | 2013-07-01 | Cylinder cover bolt installation structure |
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| Country | Link |
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| CN (1) | CN103397948B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074835A (en) * | 2014-07-07 | 2014-10-01 | 广西玉柴机器股份有限公司 | Cylinder cover bolt clamping structure |
| CN114320646A (en) * | 2021-12-31 | 2022-04-12 | 东风汽车集团股份有限公司 | Cylinder cover assembly and assembly method thereof, and thermodynamic single cylinder engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586512A (en) * | 2008-05-21 | 2009-11-25 | 本田技研工业株式会社 | Cylinder cap structure in engine |
| CN201424983Y (en) * | 2009-05-08 | 2010-03-17 | 广西玉柴机器股份有限公司 | Cylinder cover screw bolt fastening structure |
| CN201483446U (en) * | 2009-06-01 | 2010-05-26 | 奇瑞汽车股份有限公司 | Press-installing tool for bolt gasket of engine cylinder cover |
| CN101949335A (en) * | 2010-10-19 | 2011-01-19 | 无锡开普动力有限公司 | Separated cylinder jacket connection structure |
| CN202402151U (en) * | 2011-12-30 | 2012-08-29 | 浙江派尼尔机电有限公司 | 40-horsepower cylinder |
| CN203335255U (en) * | 2013-07-01 | 2013-12-11 | 广西玉柴机器股份有限公司 | Cylinder cover bolt installation structure |
-
2013
- 2013-07-01 CN CN201310271711.8A patent/CN103397948B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101586512A (en) * | 2008-05-21 | 2009-11-25 | 本田技研工业株式会社 | Cylinder cap structure in engine |
| CN201424983Y (en) * | 2009-05-08 | 2010-03-17 | 广西玉柴机器股份有限公司 | Cylinder cover screw bolt fastening structure |
| CN201483446U (en) * | 2009-06-01 | 2010-05-26 | 奇瑞汽车股份有限公司 | Press-installing tool for bolt gasket of engine cylinder cover |
| CN101949335A (en) * | 2010-10-19 | 2011-01-19 | 无锡开普动力有限公司 | Separated cylinder jacket connection structure |
| CN202402151U (en) * | 2011-12-30 | 2012-08-29 | 浙江派尼尔机电有限公司 | 40-horsepower cylinder |
| CN203335255U (en) * | 2013-07-01 | 2013-12-11 | 广西玉柴机器股份有限公司 | Cylinder cover bolt installation structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074835A (en) * | 2014-07-07 | 2014-10-01 | 广西玉柴机器股份有限公司 | Cylinder cover bolt clamping structure |
| CN114320646A (en) * | 2021-12-31 | 2022-04-12 | 东风汽车集团股份有限公司 | Cylinder cover assembly and assembly method thereof, and thermodynamic single cylinder engine |
| CN114320646B (en) * | 2021-12-31 | 2023-01-24 | 东风汽车集团股份有限公司 | Cylinder cover assembly and assembly method thereof, and thermodynamic single cylinder engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103397948B (en) | 2015-08-19 |
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