CN201163231Y - Leakage test device for cylinder cap - Google Patents
Leakage test device for cylinder cap Download PDFInfo
- Publication number
- CN201163231Y CN201163231Y CNU2006201445130U CN200620144513U CN201163231Y CN 201163231 Y CN201163231 Y CN 201163231Y CN U2006201445130 U CNU2006201445130 U CN U2006201445130U CN 200620144513 U CN200620144513 U CN 200620144513U CN 201163231 Y CN201163231 Y CN 201163231Y
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- Prior art keywords
- cylinder head
- hole
- shadoof
- crossbeam
- depression bar
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Abstract
The utility model provides a leakage testing device for a cylinder head. The device comprises a supporting platform, two or more than two side brackets, a cross beam, a press plate and a lifting rod provided with a spiral groove on the surface, wherein the side brackets are fixed on the supporting platform, first pressure levers capable of blocking necessarily plugged holes on the upper part of the testing cylinder head is spirally arranged on the side brackets; the cross beam and the two or more than two side brackets are connected to form a frame, the cross beam is provided with a through hole and a structure by which the lifting rod can be screwed in the through hole along the direction of approaching the supporting platform; the press plate is in movable connection with the lower end of the lifting rod; the bottom surface of the press plate is provided with a press block capable of tightly pressing the testing cylinder head on the supporting platform; and a second pressure lever capable of blocking the necessarily plugged hole on the upper part of the testing cylinder head is spirally arranged on the press plate. The device has the advantages of simple structure, convenient operation and low cost, and is quite suitable for the trial-production and the small volume production of cylinder heads.
Description
[technical field]
The utility model relates to a kind of cylinder head leakage testing device, especially a kind of easy-to-use cylinder head leakage testing device simple in structure, inexpensive.
[background technology]
Cylinder head is the important component part of engine, the complete machine performance of the engine after the impermeability direct relation assembling of its inner oil duct and water jacket.Therefore, must carry out strict impermeability to cylinder head in process of production detects.The impermeability detection mode of cylinder head mainly contains two kinds of wet type bowssening and dry type detection methods.The hole that needs sealing is fixed and stopped up at present industrial wet type leak tester (wet type bowssening) commonly used hydraulic pressure or the vapour-pressure type mechanisms of adopting more to cylinder head to be measured, this wet type leak tester structure is very complicated, manufacturing cost height, significant discomfort share in the trial-production of cylinder head and small serial production.
[utility model content]
Technical problem to be solved in the utility model provides a kind of easy-to-use cylinder head leakage testing device simple in structure, inexpensive.
For solving the problems of the technologies described above, the utility model provides a kind of cylinder head leakage testing device, comprises carrying platform, two or more side stands, crossbeam, pressing plate, surface band spiral fluted shadoof; Side stand is fixed on the carrying platform, but is installed with first depression bar that the tested cylinder head of shutoff top needs plug-hole on the side stand; Crossbeam and two or more side stands are joined together to form framework, and crossbeam is provided with through hole, and having shadoof on the crossbeam can be along the structure near the direction precession through hole of carrying platform; Pressing plate and shadoof lower end form and flexibly connect; The bottom surface of pressing plate is provided with the briquetting that tested cylinder head can be pressed on the carrying platform; But be installed with second depression bar that the tested cylinder head of shutoff top needs plug-hole on the pressing plate.
The position of first depression bar and second depression bar is according to needing the position of plug-hole to set on the tested cylinder head.During work, tested cylinder head places the appropriate position on the carrying platform, and making needs plug-hole corresponding with the position of first depression bar and second depression bar on the tested cylinder head; The shadoof edge is near the through hole on the direction precession crossbeam of carrying platform, and pressing plate and briquetting move closer to tested cylinder head, contact with tested cylinder head and tested cylinder head is pressed on the carrying platform until briquetting; The end that screws first depression bar and second depression bar, first depression bar and second depression bar seals the need plug-hole on the tested cylinder head.Tested cylinder head air intake opening 23 is communicated with the detection source of the gas, tested cylinder head is immersed in the water,, keep venting pressure greater than hydraulic pressure to tested cylinder head air intake opening 23 ventilations.Observation has or not bubble to emerge to judge the impermeability of cylinder head from water.
A kind of form that shadoof on the crossbeam can screw in the structure of through hole is: the hole wall of through hole be provided with shadoof on the suitable helicla flute of helicla flute.A kind of implementation of this version is, the helicla flute on the shadoof is an external thread, and the helicla flute on the through hole is an external thread.
Second kind of form that shadoof on the crossbeam can screw in the structure of through hole is: comprise screw and be located on the crossbeam and the side opening that communicates with through hole, the end that the screw that is arranged in this side opening stretches into through hole can insert the helicla flute on the shadoof.Screw inserts in the helicla flute on the shadoof, rotates shadoof shadoof is screwed in the through hole on the crossbeam.
Shadoof on the crossbeam can screw in the improvement of second kind of form of the structure of through hole, the shadoof rear surface be provided with shadoof on the straight trough that intersects of helicla flute, straight trough is parallel to the axial direction of shadoof, it is suitable that straight trough width and screw stretch into an end of through hole.The purpose that straight trough is set is, make briquetting energy before the tested cylinder head of contact easy, approaching to tested cylinder head apace, (this moment, screw was arranged in helicla flute and straight trough infall) screw enters the helicla flute on the shadoof when briquetting soon touches tested cylinder head, and the rotation shadoof can make briquetting contact with tested cylinder head and tested cylinder head is pressed on the carrying platform.
When the position of second depression bar and crossbeam interfere,, handled easily passes crossbeam and can be along self axial direction and crossbeam generation relative motion for can making the upper end of corresponding second depression bar.At this moment, the improvement structure of cylinder head leakage testing device is: comprise two or more second depression bars, wherein crossbeam and can be along self axial direction and crossbeam generation relative motion is passed in the upper end of at least one second depression bar.Owing to there is second depression bar to pass crossbeam, second depression bar and shadoof make pressing plate and the crossbeam relative fixed in the radial direction at shadoof.
The flexible connection form that pressing plate and shadoof lower end form can for: comprise connecting link and contiguous block, contiguous block is fixed on the pressing plate upper surface, fixedlys connected with shadoof in the connecting link upper end; The contiguous block upper surface is provided with counterbore, and the epimere hole wall of counterbore is provided with internal thread, hypomere is a unthreaded hole; The lower end of connecting link is provided with the suitable external thread of epimere hole wall internal thread with counterbore; The connecting link external thread section is with the maximum radial dimension on the top footpath, top less than the counterbore internal thread, and the radial dimension of the hypomere of counterbore greater than the externally threaded top of connecting link directly.During assembling, be positioned at the hypomere of counterbore behind the thread segment of the lower end external thread section screw-in counterbore of connecting link, this moment, pressing plate can move up and down along the shadoof axial direction with shadoof when connecting link rotates with shadoof.
Connection between crossbeam and two or more side stands can realize by bolt, when packing tested cylinder head into, crossbeam can be pulled down, the bolt that perhaps an end of crossbeam is separated, unclamps the other end with side stand can rotate crossbeam, in the time of can preventing like this that tested cylinder head from packing into and pressing plate, briquetting or second depression bar interfere.
Be the enhanced leaktightness effect, compensating squeeze head (as the rubber pressure head) can be set at the end of each first depression bar and second depression bar.
Handle is set on the shadoof can conveniently lifts and rotate shadoof.
The utility model cylinder head leakage testing device can also comprise container, and carrying platform and side stand are fixed in the container.During detection, after packing into, tested cylinder head tested cylinder head is immersed in the water in the container water filling.
The utility model is simple in structure, and is easy to operate, makes easily, with low cost, is suitable for very much the trial-production and the small serial production of cylinder head.
[description of drawings]
For convenience of explanation, the utility model uses following preferred embodiment and accompanying drawing to do to describe in detail.
To be a kind of embodiment of the utility model look synoptic diagram in conjunction with the master of tested cylinder head 1 to Fig. 1.
Fig. 2 is the partial schematic diagram of Fig. 1.
Fig. 3 is the A-A cross-sectional schematic of Fig. 1.
Fig. 4 is that the position of shadoof 9, crossbeam 8, contiguous block 16 concerns synoptic diagram.
[embodiment]
Fig. 1-Fig. 4 shows a kind of embodiment of the present utility model.For clear signal, show tested cylinder head 1 among Fig. 1 and Fig. 3 in the lump.Have air intake opening 23 on the tested cylinder head 1.
As shown in Figure 1, this cylinder head leakage testing device comprises container 2, and carrying platform 3 places container 2 bottoms, and left side side stand 4 and right side side stand 5 are fixed on the carrying platform 3 and with carrying platform 3 and form a fixed frame; Be installed with first horizontal struts 6 on the side stand 4 of left side, be installed with four second horizontal struts 7 on the right side side stand 5; The two ends of crossbeam 8 are connected with the upper end of left side side stand 4 with right side side stand 5 respectively by bolt.(first horizontal struts 6 and four second horizontal struts 7 are the specific implementation of first depression bar).
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the middle part of crossbeam 8 is provided with the through hole and the vertical side opening that communicates with this through hole of vertical direction, and shadoof 9 activities are set in this through hole, and screw 12 revolves and is located in this side opening; The outside surface of shadoof 9 is provided with thread groove 10 and straight trough 11, and straight trough 11 is positioned at the below of thread groove 10, and the end towards through hole of screw 12 can insert in thread groove 10 and the straight trough 11, and an end that exposes crossbeam 8 of screw 12 is installed with set nut 13; The lower end of shadoof 9 and connecting link 14 form threaded engagement, and the upper surface that is fixed on the contiguous block 16 of pressing plate 15 upper surfaces is provided with counterbore, and the epimere hole wall of counterbore is provided with internal thread, hypomere is a unthreaded hole; The lower end of connecting link 14 is provided with the suitable external thread of epimere hole wall internal thread with counterbore; Connecting link 14 external thread sections are with the maximum radial dimension on the top footpath, top less than the counterbore internal thread, and the radial dimension of the hypomere of counterbore greater than connecting link 14 externally threaded tops directly.During assembling, be positioned at the hypomere of counterbore behind the thread segment of the lower end external thread section screw-in counterbore of connecting link 14, this moment, pressing plate 15 can move up and down along shadoof 9 axial directions with shadoof 9 when connecting link 14 rotates with shadoof 9.Crossbeam 8 and can be along self axial direction and crossbeam 8 generation relative motions is passed in the upper end that is installed with first vertical depression bar 19, the second vertical depression bar 20 and the 3rd vertical depression bar 21, the first vertical depression bars 19, the second vertical depression bar 20 on the pressing plate 15.(first vertical depression bar 19, the second vertical depression bar 20 and the 3rd vertical depression bar 21 are the specific implementation of second depression bar).The bottom surface of pressing plate 15 (lower surface among the figure) is provided with the briquetting 22 that tested cylinder head 1 can be pressed on the described carrying platform 3.
As shown in Figure 3, also be fixed with rear side side stand 17 on the carrying platform 3, also be installed with the 3rd horizontal struts 18 on the rear side side stand 17.(the 3rd horizontal struts 18 is the specific implementation of first depression bar).
The concrete setting of first horizontal struts 6, second horizontal struts, 7, first vertical depression bar 19, the second vertical depression bar 20 and the 3rd vertical depression bar 21 is corresponding to each needs the position and the degree of depth of plug-hole on the tested cylinder head 1.First horizontal struts 6, second horizontal struts, 7, first vertical depression bar 19, the second vertical depression bar 20 and the 3rd vertical depression bar 21 lower end separately are the rubber pressure head, so that guarantee the better seal effect.
As shown in Figure 4, the upper end of shadoof 9 is provided with the handle 24 of being convenient to operate shadoof 9.
During work, with an end of crossbeam 8 and left side side stand 4 and right side side stand 5 the two one of separate, the bolt that unclamps the other end makes crossbeam 8 turn an angle around this bolt, and (end of screw 12 is arranged in straight trough 11 before the rotating beam 8, operating personnel hold handle 24 with pressing plate 15, the first vertical depression bar 19, the second vertical depression bar 20 and the 3rd vertical depression bar 21 are mentioned, rotating beam 8 then), make tested cylinder head 1 can place appropriate position on the carrying platform 3, again crossbeam 8 is gone back to and its two ends are fixing with left side side stand 4 and right side side stand 5 respectively, on this moment tested cylinder head 1 each need plug-hole respectively with first horizontal struts 6, second horizontal struts 7, the first vertical depression bar 19, the position correspondence of the second vertical depression bar 20 and the 3rd vertical depression bar 21; Turning handle 24 makes shadoof 9 along near the through hole on the direction of tested cylinder head 1 direction of carrying platform 3 (promptly near) the precession crossbeam 8, contacts with tested cylinder head 1 and tested cylinder head 1 is pressed on the carrying platform 3 until briquetting 22; Screwing first horizontal struts 6, second horizontal struts, 7, first vertical depression bar 19, the second vertical depression bar 20 and the 3rd vertical depression bar 21 makes the rubber pressure head of each depression bar end that the need plug-hole on the tested cylinder head 1 is sealed.The air intake opening 23 of tested cylinder head 1 is communicated with the detection source of the gas, and water filling submerges tested cylinder head 1 in container 2, and air intake opening 23 ventilations to tested cylinder head 1 keep venting pressure greater than hydraulic pressure.Observation has or not bubble to emerge to judge the impermeability of tested cylinder head 1 from water.
Can be when implementing the utility model according to each needs the position of plug-hole and the concrete condition of the degree of depth on the tested cylinder head, determine the key elements such as quantity, position, length, angle of first depression bar and second depression bar, so that each on first depression bar and second depression bar and the tested cylinder head needs plug-hole corresponding.
Claims (10)
1, a kind of cylinder head leakage testing device is characterized in that: comprise carrying platform, two or more side stands, crossbeam, pressing plate, surface band spiral fluted shadoof; Described side stand is fixed on the described carrying platform, but is installed with first depression bar that the tested cylinder head of shutoff top needs plug-hole on the described side stand; Described crossbeam and two or more described side stands are joined together to form framework, and described crossbeam is provided with through hole, have the structure that described shadoof can screw in described through hole along the direction near described carrying platform on the described crossbeam; Described pressing plate and shadoof lower end form and flexibly connect; The bottom surface of described pressing plate is provided with the briquetting that tested cylinder head can be pressed on the described carrying platform; But be installed with second depression bar that the tested cylinder head of shutoff top needs plug-hole on the described pressing plate.
2, cylinder head leakage testing device according to claim 1 is characterized in that: the structure that the described shadoof on the described crossbeam can screw in described through hole is: the hole wall of described through hole is provided with and the suitable helicla flute of described shadoof.
3, cylinder head leakage testing device according to claim 1, it is characterized in that: the structure that the described shadoof on the described crossbeam can screw in described through hole comprises screw and is located on the described crossbeam and the side opening that communicates with described through hole, and the end that the described screw that is arranged in this side opening stretches into described through hole can insert the helicla flute on the described shadoof.
4, cylinder head leakage testing device according to claim 3, it is characterized in that: described shadoof rear surface is provided with the straight trough that communicates with the screw channel of screw thread on the described shadoof, described straight trough is parallel to the axial direction of described shadoof, and it is suitable that described straight trough width and described screw stretch into an end of described through hole.
5, according to claim 1,2,3 or 4 described cylinder head leakage testing devices, it is characterized in that: comprise two or more described second depression bars, wherein described crossbeam and can be along self axial direction and described crossbeam generation relative motion is passed in the upper end of at least one described second depression bar.
6, cylinder head leakage testing device according to claim 5 is characterized in that: comprise connecting link and contiguous block, described contiguous block is fixed on described pressing plate upper surface, fixedlys connected with described shadoof in described connecting link upper end; Described contiguous block upper surface is provided with counterbore, and the epimere hole wall of described counterbore is provided with internal thread, hypomere is a unthreaded hole; The lower end of described connecting link is provided with the suitable external thread of epimere hole wall internal thread with described counterbore; Described connecting link external thread section is with the maximum radial dimension on the top footpath, top less than described counterbore internal thread, and the radial dimension of the hypomere of described counterbore greater than the externally threaded top of described connecting link directly.
7, cylinder head leakage testing device according to claim 6 is characterized in that: described crossbeam is connected by the described side stand of bolt and two or more.
8, cylinder head leakage testing device according to claim 7 is characterized in that: the end of each described first depression bar and second depression bar is provided with compensating squeeze head.
9, cylinder head leakage testing device according to claim 8, it is characterized in that: described shadoof is provided with handle.
10, cylinder head leakage testing device according to claim 9 is characterized in that: comprise container, described carrying platform and side stand are fixed in the described container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201445130U CN201163231Y (en) | 2006-12-30 | 2006-12-30 | Leakage test device for cylinder cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201445130U CN201163231Y (en) | 2006-12-30 | 2006-12-30 | Leakage test device for cylinder cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201163231Y true CN201163231Y (en) | 2008-12-10 |
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ID=40184166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201445130U Expired - Lifetime CN201163231Y (en) | 2006-12-30 | 2006-12-30 | Leakage test device for cylinder cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201163231Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968394A (en) * | 2010-09-30 | 2011-02-09 | 江苏南方机电股份有限公司 | Slipway mechanism of shell air tightness detection equipment |
| CN101696662B (en) * | 2009-09-08 | 2012-07-11 | 上海明兴开城超音波科技有限公司 | Automobile engine cylinder head with complex shape and device for detecting flaws and leakage of tightness of automobile engine cylinder head with complex shape |
| CN103592084A (en) * | 2013-11-20 | 2014-02-19 | 孙效 | Detection table for casting defects and assembly quality of air cylinder cover |
| CN107727317A (en) * | 2017-11-29 | 2018-02-23 | 郑州斯倍思机电有限公司 | A kind of front and rear cylinder head testboard and its operating method |
| CN109341980A (en) * | 2018-11-09 | 2019-02-15 | 襄阳市中康汽车配件有限公司 | A kind of air tightness detecting device of engine cylinder head |
| CN110146227A (en) * | 2019-06-25 | 2019-08-20 | 芜湖永裕汽车工业股份有限公司 | Engine cylinder cap air tightness detection equipment |
-
2006
- 2006-12-30 CN CNU2006201445130U patent/CN201163231Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696662B (en) * | 2009-09-08 | 2012-07-11 | 上海明兴开城超音波科技有限公司 | Automobile engine cylinder head with complex shape and device for detecting flaws and leakage of tightness of automobile engine cylinder head with complex shape |
| CN101968394A (en) * | 2010-09-30 | 2011-02-09 | 江苏南方机电股份有限公司 | Slipway mechanism of shell air tightness detection equipment |
| CN103592084A (en) * | 2013-11-20 | 2014-02-19 | 孙效 | Detection table for casting defects and assembly quality of air cylinder cover |
| CN103592084B (en) * | 2013-11-20 | 2016-03-30 | 孙效 | Cylinder head casting flaw and assembly quality monitor station |
| CN107727317A (en) * | 2017-11-29 | 2018-02-23 | 郑州斯倍思机电有限公司 | A kind of front and rear cylinder head testboard and its operating method |
| CN109341980A (en) * | 2018-11-09 | 2019-02-15 | 襄阳市中康汽车配件有限公司 | A kind of air tightness detecting device of engine cylinder head |
| CN110146227A (en) * | 2019-06-25 | 2019-08-20 | 芜湖永裕汽车工业股份有限公司 | Engine cylinder cap air tightness detection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Ding Rui Document name: Notification of patent rights granted to utility models and formalities for registration |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081210 |
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| EXPY | Termination of patent right or utility model |