CN105090502B - Sealing device for leak hunting of valve body of dry dual clutch - Google Patents
Sealing device for leak hunting of valve body of dry dual clutch Download PDFInfo
- Publication number
- CN105090502B CN105090502B CN201410198650.1A CN201410198650A CN105090502B CN 105090502 B CN105090502 B CN 105090502B CN 201410198650 A CN201410198650 A CN 201410198650A CN 105090502 B CN105090502 B CN 105090502B
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- China
- Prior art keywords
- pull rod
- sealing
- sealing ring
- sealing device
- center pull
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention relates to a sealing device for leak hunting of a valve body of a dry dual clutch, in particular to a sealing device for sealing gear shifting square holes in a gear shifting control hole of the valve body of the dry dual clutch. The sealing device comprises a fixed stop block which is fixedly arranged and a central pull rod inserted inside the gear shifting control hole; a plug is arranged at the tail end of the central pull rod; the central pull rod is sleeved by a plurality of cylindrical sealing rings positioned between the plug and the fixed stop block; a spacer sleeve sleeving the central pull rod is arranged between every two adjacent sealing rings; each sealing ring corresponds to one gear shifting square hole in position; the sealing device also comprises a driving device for outwards pulling the central pull rod; the gear shifting square holes can be sealed when the central pull rod is outwards pulled; deformation quantities of all sealing rings are very close, so that the sealing effect of the gear shifting square holes is guaranteed; meanwhile, the misjudgment rate of the leak hunting can be reduced, bending deformation of the central pull rod caused by non-uniformity in stress is avoided, the service life is prolonged, and the production efficiency is improved on the premise of meeting the technical requirements of the leak hunting of single cavity.
Description
Technical field
The sealing device the present invention relates to a kind of dry dual clutch valve body leaks hunting, it is more particularly to a kind of to be used for dry type pair
The sealing device that leaks hunting that gearshift square hole in the gearshift control hole of clutch valve body is sealed.
Background technology
The double clutch used in automobile can be divided into dry dual clutch and wet-type dual-clutch：The torsion of wet-type dual-clutch
Square passes through the friction of wet clutch that is immersed in oil to realize, and the transmission of the moment of torsion of dry dual clutch then by from
The oil circuit of clutch valve body carrys out transmitting torque come the friction plate controlled on clutch plate.Due to saving related hydraulic systems and dry type
The high efficiency of the transmitting torque that clutch itself has, dry system largely improves fuel economy, therefore dry
Formula double clutch is energy saving and environment friendly, than ordinary construction fuel-economizing 10%.
Because the appearance and size of dry dual clutch is more slightly larger than wet-type dual-clutch, pipeline is more, cavity is complicated, to clutch
Aluminium alloy valve body production process is also most important.Because cavity is more, cavity is complicated, and for example, certain type product amounts to 8 pairs of gearshifts
Square hole, 12 road binders roads amount to 13 chambers plus an inner chamber, during work different gearshift square holes are blocked as needed
Or open, the closing and circulation of certain part oil duct are controlled, transmit power to control the friction plate on clutch plate by oil circuit, reach
The purpose of clutch speed-changing.Therefore the work that carries out leaking hunting before dry dual clutch product export is a very important link.
It is to block 8 pairs of gearshift square holes by seal bar to leak hunting at present, then individually carries out ventilation for each chamber and leak hunting, qualified product
The leakage rate permissible value of each cavity is less than 2.5CC/min under 1.5Kg air pressure.
But at present, because dry dual clutch casting technique is complicated, detection means backwardness being added, yield rate is low.Cause
Such foundry goods is most of to need external buying, and cost is high.And because clutch is the core component of automobile, concern people's
Life security, inner part producer of state casts out and extremely complex strict detection is had to pass through after product could use, however, at present
The most key detection technique there is the following problem：
1. because detection technique is limited, the requirement of single-chamber road sealing can not be met during detection, or meet the sealing inspection of single-chamber road
The equipment cost of survey is too high and sealing stability is poor；
2. False Rate is high, and it is poor that testing equipment carries out stability during sealing operation.It is primarily due to for sealing gearshift control
The seal bar elongate form in hole, needs the chamber of sealing more, after causing long-time sealing detection, under the sealing effectiveness of seal bar
Drop, causes the erroneous judgement to product.The seal member in seal bar can only be constantly changed, batch production efficiency is had a strong impact on.Occur
This problem main cause is that test product oil duct is too many, and cross bore is more, while needing to seal sealing gasket expansion during closure
Stifled cavity, closure process is easily caused when seal member hardness selects unreasonable and stuck damage seal member occurs.
3. it is to be pushed ahead seal bar by cylinder due to current closure, because seal bar is in closure gearshift control
It is interference fit during hole, is very easy to cause seal bar to produce bending, causes the consequence for needing to change whole seal bar.
The content of the invention
The sealing device it is an object of the invention to provide a kind of dry dual clutch valve body leaks hunting, good sealing effect, using the longevity
Life length.
To solve above-mentioned technical problem, the dry dual clutch valve body of the present invention leaks hunting sealing device, for double to dry type
Gearshift square hole in the gearshift control hole of clutch valve body is sealed, and it includes the fixed stop being fixedly installed, is inserted into and changes
Center pull rod inside gear control hole, in center pull rod end plug is provided with, and is set with center pull rod multiple positioned at plug
The sealing ring of the tubular between fixed stop, is provided with the spacer sleeve being sleeved in center pull rod between adjacent sealing ring,
The sealing ring is corresponding with gearshift square hole position, also including the driving means for pulling out center pull rod.
Further, described driving means are cylinder, and cylinder rod and the center pull rod of cylinder are fixedly linked.
Further, external diameter of the external diameter of the spacer sleeve less than or equal to sealing ring.
Further, the internal diameter of the gearshift control hole is 10mm, and the external diameter of sealing ring is 9.6mm, and sealing ring is set to 3
It is individual.
Further, the plug is detachably connectable with center pull rod.
Further, the plug is threadedly coupled with center pull rod.
Further, described spacer sleeve is metallic sheath or nylon jacket.
Further, be provided between fixed stop and cylinder with gearshift control hole port outside location hole coordinate, it is right
Center pull rod limits locating piece in place；
Further, the spring for promoting center pull rod to reset is provided between cylinder and locating piece.
Using above-mentioned technical proposal, beneficial effects of the present invention are：
The dry dual clutch valve body of the present invention leaks hunting sealing device, can be by square hole of shifting gears when pulling out center pull rod
Sealing, due to the sealing ring using spacer sleeve and multistage, the deflection of each sealing ring is relatively, it is ensured that gearshift square hole
Sealing effectiveness, while False Rate of leaking hunting can be reduced, due to being to pull out center pull rod, it is to avoid center pull rod unbalance stress
And flexural deformation, service life is improve, meet under the technical requirements that single-chamber road leaks hunting, improve production efficiency；
The external diameter of spacer sleeve can be effectively prevented from spacer sleeve and send out with gearshift control hole less than or equal to the external diameter of sealing ring
It is raw to interfere, so as to ensure that center pull rod is smoothly inserted in gearshift control hole；
Plug is detachably connectable with center pull rod, can easily remove plug, so as to from the plug rapidly
Change spacer sleeve and sealing ring；
Arranging location hole can carry out spacing, the positioning precision and work of raising center pull rod to the insertion depth of center pull rod
Make efficiency；
Arranging back-moving spring can promote center pull rod to automatically reset.
Description of the drawings
Fig. 1 is the schematic diagram of dry dual clutch valve body；
Fig. 2 is sectional views of the Fig. 1 along line A-A；
Fig. 3 is sectional views of the Fig. 1 along line B-B；
Fig. 4 is the schematic perspective view of testing equipment；
Fig. 5 is the front view of testing equipment；
Fig. 6 is the left view of testing equipment；
Fig. 7 is that this dry dual clutch valve body leaks hunting the schematic diagram of sealing device.
In figure：1st, fixed stop；2nd, center pull rod；3rd, plug；4th, sealing ring；5th, spacer sleeve；6th, cylinder；7th, locating piece；
8th, spring；9th, dry dual clutch valve body；10th, gearshift control hole；11st, gearshift square hole；12nd, outside oil hole；13rd, slide rail；14、
Location hole；15th, base plate is tested；16th, fixture.
Specific embodiment
It is below in conjunction with the accompanying drawings and embodiment, right in order that the objects, technical solutions and advantages of the present invention become more apparent
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Fig. 1 to Fig. 3 show a kind of dry dual clutch valve body 9, and its inside is provided with gearshift control hole 10, in gearshift control
8 groups of gearshift square holes 11 are provided with drilling 10, outside oil hole 12 is formed with its outer wall.
Fig. 4 to Fig. 6 is the schematic diagram of the testing equipment of the present embodiment.The testing equipment includes test base plate 15, is arranged on
Slide rail 13 and fixture 16 on test base plate 15, also leaks hunting sealing device including this dry dual clutch valve body.For detecting
Double-clutch valve 9 be fixed on fixture 16 by alignment pin, while by hold down gag workpiece pressing (in figure from top to bottom
It is not shown).O-ring seal on test base plate 15 is in close contact sealing with dry dual clutch valve body 9, while opening closure
Device is blocked to the outside oil hole 12 of dry dual clutch valve body 9.13 chambers form confined space state.Next step
By carrying out ventilation test to testing 13 air admission holes on base plate 15.
Dry dual clutch valve body leaks hunting sealing device to the gearshift in the gearshift control hole 10 of dry dual clutch valve body 9
Square hole 11 is sealed, including the fixed stop 1 being fixedly installed, the center pull rod 2 being inserted into inside gearshift control hole 10, in
The end of heart pull bar 2 is provided with plug 3, and multiple tubulars between plug 3 and fixed stop 1 are set with center pull rod 2
Sealing ring 4, is provided with the spacer sleeve 5 being sleeved in center pull rod 2, the sealing ring 4 and gearshift side between adjacent sealing ring 4
The position of hole 11 is corresponding, also including the driving means for pulling out center pull rod 2.
In the present embodiment, the internal diameter of gearshift control hole 10 is 10mm, and the external diameter of sealing ring 4 is 9.6mm, and sealing ring 4 sets
3 are set to, the external diameter of spacer sleeve 5 is slightly less than the external diameter of sealing ring 4, it is it can also be provided that equal to the external diameter of sealing ring 4.Due to
The external diameter of sealing ring 4 is slightly less than the internal diameter of gearshift control hole 10, and the external diameter of spacer sleeve 5 is smaller than the external diameter of sealing ring 4, therefore,
Easily center pull rod 2 and the sealing ring being sleeved in center pull rod 24 and spacer sleeve 5 can be inserted into into gearshift control hole
In 10, also can easily extract out when extracting out.Spacer sleeve 5 can be using metallic sheath or nylon jacket.
The plug 3 arranged in center pull rod 2 is detachably connectable with center pull rod 2, specifically, plug 3 and center
Pull bar 2 is threaded connection.After removing plug 3, sealing ring 4 and spacer sleeve 5 can be exited center from the plug 3 and be drawn
Bar 2.If sealing ring 4 has the situation of abrasion, sealing ring 4 can be easily changed.
The driving means for pulling out center pull rod 2 are cylinder 6, and cylinder rod and the center pull rod 2 of cylinder 6 are fixedly linked,
The location hole 14 being provided between fixed stop 1 and cylinder 6 outside the port with gearshift control hole 10 coordinates, center pull rod 2 is limited
Fixed locating piece 7 in place；The spring 8 for promoting center pull rod 2 to reset is provided between cylinder 6 and locating piece 7.
Locating piece 7 is inserted into after location hole 14, shows that center pull rod 2 has been positioned with tested dry dual clutch valve body 9
Finish.If now pulling center pull rod 2, then plug 3 and fixed stop 1 can common crush seal circle 4 and spacer sleeves 5.It is close
Seal 4 can start expansion after being squeezed, all of gearshift square hole 11 be sealed, 13 chambers of dry dual clutch valve body 9
Confined space is formed, by carrying out ventilation test to testing 13 air admission holes on base plate 15.After being completed, cylinder 6 resets,
Center pull rod 2 is forward extended out, and plug 3 eliminates the extruding force to sealing ring 4 to extension, and sealing ring 4 bounces back, this sealing device
Measured workpiece can be left by guide rail, terminate test.
The structure design of sealing ring 4 of this sealing device is reasonable, i.e., the hardness and diameter of sealing ring 4 is reasonable.Sealing ring 4
As the elastomer for sealing, elastomeric material is generally selected, it is poor if hardness too high-expansion, it is impossible to close well
Envelope；If hardness is too low to cause be bounced back into after gearshift square hole 11 after expansion, after the end sealing cylinder that leaks hunting resets,
A part of elastomer is also kept in gearshift square hole 11, and when sealing device integrally exits workpiece, sealing ring 4 can be drawn bad, extremely
Situation is even often tested and once will change once sealing circle；In the case of hardness is suitable, the diameter of sealing ring 4 can not be too big
Or it is too little, otherwise all easily cause underexpansion or expansion is excessive, and then damage sealing ring or seal bad.In the present embodiment
The gearshift a diameter of 10mm of control hole 10, by test of many times, the diameter of sealing ring 4 selects to be diameter 9.6mm, i.e., under setting pressure
Sealing ring 4 expand it is monolateral can meet seal request for 0.2mm, can guarantee that normal contraction again, the life-span of sealing ring 4 is maximum, one
As reusable more than 800 times.
For many cavity synchronous sealeds, as elastomer sealing ring 4 just must uniform force, in order to avoid cause some chambers
Poorly sealed, gas leakage during inflation test causes erroneous judgement (such as adjacent 2 sealing square hole poor sealings, to cause the test gas of certain chamber
Body scurries into the chamber of adjacency, and the chamber will be determined gas leakage, and qualified product is judged to unqualified).Sealing ring 4 is designed as many
It is individual, spacer sleeve 5 is designed between sealing ring 4, spacer sleeve 5 is enclosed within center pull rod 2, plays a part of parting seal circle 4, according to
Need, we can arrange multiple sealing rings 4 and spacer sleeve 5.After the pulling plug 3 of center pull rod 2, each sealing ring 4 exists
Synchronously expand in the presence of extruding force, spacer sleeve 5 can be played prevents these non-homogeneous expansions of sealing ring 4 even, cause test when some
Gearshift square hole cannot be sealed or sealing effectiveness is poor, so that causing erroneous judgement.
The detection process of the present embodiment is as follows：
1. checking equipment before starting shooting：
1.1 are first verified with qualified master body to equipment sealing, i.e., put conjunction well on testing equipment fixture 16
Lattice exemplar, starting device is sealed to all cavities, and the detecting instrument that leaks hunting is surveyed according to the single cavity of the program for setting
Leakage, such as testing result shows that whole cavity sealings are consistent with the mark of master body, then illustrate that the testing equipment of the present invention is close
Envelope works well, and instrument of leaking hunting shows accurately.
1.2 verify that verification process is consistent with 1.1 with unqualified exemplar to equipment sealing again, if leaking hunting result
It is consistent with the gas leakage cavity of exemplar mark, further illustrate instrument of leaking hunting and show normal work.
2. regular lot production
2.1 device authentications record result in start check table after terminating, and start the normal production of order of classes or grades at school.
Need before product is put into air leak tester to check following item in 2.2 production processes：
2.2.1 whether there is residual moisture in holes of products, it is to avoid moisture causes instrument to damage or poor sealing.
2.2.2 check that cross bore inner burr whether there is, it is to avoid burr damages sealing ring.
2.2.3 the sealing mechanism deformation and action of long hole site is paid close attention to, and when each product is done sealer is noted
It is pollution-free and without deformation on structure, prevent from causing that sealing mechanism is damaged or sealing is bad.
2.2.4 check after finishing by start button, the process automatic running program of leaking hunting completes the work of leaking hunting of each cavity,
And automatically record leaks hunting result in form.
3. leak hunting end after product identification and inspection
3.1 leak hunting terminate after the part do not revealed of all cavities can automatic marking know, pieces O.K. is put into after visual examination defeated
Line sending is to next procedure.
3.2 unqualified parts put into defective work conveyer belt, and circulation to next procedure infiltrates.
The present invention has the advantage that as follows.
1. sealing structure effect is good, can meet continuous batch production, will not produce the mistake that destabilizing factor causes to leak hunting
Sentence and scrap products；
2. the sealing ring life-span can reach 800 detections without damaged replacing, reduce changing the frequency and cost.
3. swollen motion rational in infrastructure in causes front and back sealing rings expansion uniform, the 8 couple gearshift Kong Mi shifted gears in control hole
Envelope property is consistent.
4. due to using cylinder pull mode, rather than pattern is released, center pull rod is unlikely to deform bending, changes and facilitates.
5. sealing ring hardness and diametric fit require that accurately after sealing ring expansion plugging, cylinder unloading air pressure can be again
Multiple contraction does not cause sealing ring to damage or reduction pliability.
Efficiency of leaking hunting be 4 minutes or so one, raising efficiency more than 50%.
Embodiment described above only expresses embodiments of the present invention, and its description is more concrete and detailed, but can not
Therefore it is interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the protection model of the present invention
Enclose.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (7)
1. the sealing dress that leaks hunting that the gearshift square hole in a kind of gearshift control hole for dry dual clutch valve body is sealed
Put, it is characterised in that：Including the fixed stop being fixedly installed, the center pull rod being inserted into inside gearshift control hole, draw at center
Bar end is provided with plug, and the sealing ring of multiple tubulars between plug and fixed stop is set with center pull rod,
The spacer sleeve being sleeved in center pull rod is provided between adjacent sealing ring, the sealing ring is corresponding with gearshift square hole position,
Also include pulling out the driving means of center pull rod, described driving means are cylinder, the cylinder rod and center pull rod of cylinder
It is fixedly linked, the external diameter of the spacer sleeve is less than or equal to the external diameter of sealing ring.
2. the sealing device that leaks hunting according to claim 1, it is characterised in that：The internal diameter of the gearshift control hole is 10mm,
The external diameter of sealing ring is 9.6mm, and sealing ring is set to 3.
3. the sealing device that leaks hunting according to claim 1, it is characterised in that：The plug and center pull rod removably phase
Connection.
4. the sealing device that leaks hunting according to claim 3, it is characterised in that：The plug is threadedly coupled with center pull rod.
5. the sealing device that leaks hunting according to claim 1, it is characterised in that：Described spacer sleeve is metallic sheath or nylon
Set.
6. the sealing device that leaks hunting according to claim 1, it is characterised in that：It is provided between fixed stop and cylinder and changes
Location hole outside the port of gear control hole coordinates, the locating piece to center pull rod restriction in place.
7. the sealing device that leaks hunting according to claim 6, it is characterised in that：During promotion is provided between cylinder and locating piece
The spring that heart pull bar resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198650.1A CN105090502B (en) | 2014-05-13 | 2014-05-13 | Sealing device for leak hunting of valve body of dry dual clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410198650.1A CN105090502B (en) | 2014-05-13 | 2014-05-13 | Sealing device for leak hunting of valve body of dry dual clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090502A CN105090502A (en) | 2015-11-25 |
| CN105090502B true CN105090502B (en) | 2017-04-12 |
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ID=54571546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410198650.1A Active CN105090502B (en) | 2014-05-13 | 2014-05-13 | Sealing device for leak hunting of valve body of dry dual clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105090502B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088603B (en) * | 2017-06-05 | 2019-08-02 | 佛山市永恒液压机械有限公司 | A kind of internal high-pressure forming machine |
| CN107462372A (en) * | 2017-09-19 | 2017-12-12 | 菲斯达精密工业部件（苏州）有限公司 | A kind of sealing detection plugging device of automobile valve body |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008042645A1 (en) * | 2008-10-07 | 2010-04-08 | Robert Bosch Gmbh | Combustion chamber pressure sensor |
| CN201387382Y (en) * | 2009-04-28 | 2010-01-20 | 沈阳新松机器人自动化股份有限公司 | Sealing structure of sealing tester for automatic transmission case clutch housing |
| CN102636316A (en) * | 2012-04-24 | 2012-08-15 | 福州省力机械有限公司 | Sealing structure of gas-tightness testing device |
| CN102705557A (en) * | 2012-05-30 | 2012-10-03 | 太仓海嘉车辆配件有限公司 | Dual-clutch valve body |
| CN203515450U (en) * | 2013-09-13 | 2014-04-02 | 中国石油集团西部钻探工程有限公司 | Blocking device of packer |
| CN203847694U (en) * | 2014-05-13 | 2014-09-24 | 太仓海嘉车辆配件有限公司 | Leak-checking sealing device for dry dual clutch valve body |
-
2014
- 2014-05-13 CN CN201410198650.1A patent/CN105090502B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105090502A (en) | 2015-11-25 |
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