CN202732944U - Sealing device for leakage test on cylinder bore water cavity of engine - Google Patents
Sealing device for leakage test on cylinder bore water cavity of engine Download PDFInfo
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- CN202732944U CN202732944U CN 201220301931 CN201220301931U CN202732944U CN 202732944 U CN202732944 U CN 202732944U CN 201220301931 CN201220301931 CN 201220301931 CN 201220301931 U CN201220301931 U CN 201220301931U CN 202732944 U CN202732944 U CN 202732944U
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- water cavity
- sealing device
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Abstract
The utility model discloses a sealing device for a leakage test on a cylinder bore water cavity of an engine. The sealing device for the leakage test comprises an upper sealing mechanism, a lower sealing mechanism and a supporting post mechanism, wherein the upper sealing mechanism comprises a positioning sleeve, a first sealing ring, a rubber cushion and a fixed plate; the lower sealing mechanism comprises a sealing plate, a second sealing ring and a pressure plate; the sealing plate is an inverted conical round tray; the pressure plate is in the shape of the round tray as well; a stepped round hole of which the top is large and the bottom is small is axially formed in the middle part of the upper sealing mechanism; the second sealing ring is arranged in an inclined groove formed by sheathing the sealing plate and the pressure plate; the supporting post mechanism comprises a supporting post, a pull rod and a shoulder nut; two ends of the supporting post are fixedly arranged on the positioning sleeve and the sealing plate respectively; and the pull rod is arranged in the pressure plate, the sealing plate, the supporting post, the positioning sleeve, the rubber cushion and the fixed plate in a penetrating mode, and further is tightly locked by the shoulder nut. The sealing device for the leakage test on the cylinder bore water cavity of the engine is simple and rational in structure, high in sealing reliability for the leakage test and convenient to operate; and in addition, a cylinder sleeve is prevented from being repeatedly dismantled and installed to easily cause damages to a cylinder bore of a cylinder body and the cylinder sleeve.
Description
Technical field
The utility model relates to engine art, particularly a kind of engine cylinder hole water cavity sealing device for leakage check.
Background technique
Motor requires to have height reliability as the heart of the dynamic power machines such as automobile.For water-cooled engine, the reliability of cooling water circulation directly affects engine performance.In order to detect the engine part defective, need to carry out the water channel leak test in the fabrication stage of engine part.
For the cylinder body that adopts wet cylinder liner, in the prior art the many employings of cylinder hole water cavity sealing are filled the water channel leak test modes of cylinder sleeve.Namely will seal first snare 51 (as shown in Figure 1) on cylinder sleeve 5, then cylinder sleeve 1 will be pressed in the cylinder hole of cylinder body 52 (as shown in Figure 2), thereby realize the water channel sealing by sealing snare 15 and the supporting Sealings 53 that are arranged on above the cylinder sleeve 5.
This water channel leak test mode cylinder sleeve of need to packing into, Spielpassung is adopted in cylinder sleeve and cylinder hole, and cylinder sleeve is installed and is taken out all very difficultly, and repeated disassembled and assembled is easily damaged cylinder body cylinder hole and cylinder sleeve itself.Moreover, this sealing means seal ring of must packing into first, because cylinder sleeve closely cooperates with cylinder body cylinder hole, seal ring just protrudes outside cylinder sleeve at the beginning.Be fit in the process in cylinder hole at cylinder sleeve, seal ring is subject to the casing wall friction all the time, can cause the seal ring damage after repeatedly using, and has shortened the life-span of seal ring, continues to use the reliability that will affect the leak test sealing.
The model utility content
The utility model is in order to overcome defective in the above-mentioned prior art, provide a kind of simple and reasonable, the leak test sealing reliability is high, and is easy and simple to handle, avoids the cylinder sleeve repeated disassembled and assembled easily to damage the engine cylinder hole water cavity sealing device for leakage check of cylinder body cylinder hole and cylinder sleeve itself.
For achieving the above object, provide a kind of engine cylinder hole water cavity sealing device for leakage check according to the utility model, comprising: upper sealing mechanism, lower seal mechanism and the pillar mechanism that is connected sealing mechanism, lower seal mechanism; Upper sealing mechanism comprises from down to up: setting sleeve, the first seal ring, rubber cushion and fixed plate, setting sleeve are up big and down small ladder disc structure, and the joining portion of big or small ladder disk offers the seal groove that holds the first seal ring; Lower seal mechanism comprises from down to up: sealing plate, the second seal ring and pressing plate, sealing plate is inverted tapered disk, pressing plate also is discoid, the middle part axially offers up big and down small ladder circular hole, big hole wherein is and the reverse taper holes of the adaptive suit of tapered disk sealing plate that the second seal ring is arranged in the skewed slot of sealing plate with the formation of pressing plate suit; Pillar mechanism comprises: pillar, pull bar and band shoulder nut, the pillar two ends are separately fixed on described setting sleeve and the sealing plate, pull bar be located in pressing plate, sealing plate, in pillar, setting sleeve, rubber cushion and the fixed plate, and by the nut check of band shoulder.
In the technique scheme, the bottom shallow bid of setting sleeve has the skirt section to downward-extension, and the lower end, skirt section has the wedge shape guide portion.
In the technique scheme, also be provided with guide plate below the pressing plate.
In the technique scheme, pillar mechanism also comprises and is arranged on the back-up ring that pull bar passes the setting sleeve position.
In the technique scheme, pull bar is located in the fixed plate by oblate structure.
Compared with prior art, the utlity model has following beneficial effect: this engine cylinder hole water cavity sealing device for leakage check is simple and reasonable, realize part sealing under the cylinder hole by band shoulder lift nut pull bar, the leak test sealing reliability is high, easy and simple to handle, avoid the cylinder sleeve repeated disassembled and assembled easily to damage cylinder body cylinder hole and cylinder sleeve itself; Can also utilize simultaneously fixed plate to realize the water channel sealing in other ducts of cylinder deck, the application of having saved original supporting Sealing.
Description of drawings
Fig. 1 is available engine cylinder hole water cavity leak test sealing cylinder sleeve and the structural representation that seals snare;
Fig. 2 is the structural representation of available engine cylinder hole water cavity leak test sealing dress cylinder sleeve mode;
Fig. 3 is the structural representation of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Fig. 4 is the sectional structure schematic diagram of the A-A direction of Fig. 3;
Fig. 5 is the structural representation of the setting sleeve of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Fig. 6 is the sectional structure schematic diagram of the B-B direction of Fig. 5;
Fig. 7 is the structural representation of the fixed plate of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Fig. 8 be engine cylinder hole water cavity sealing device for leakage check of the present utility model sealing plate structural representation;
Fig. 9 is the sectional structure schematic diagram of the C-C direction of Fig. 8;
Figure 10 is the structural representation of the pressing plate of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Figure 11 is the sectional structure schematic diagram of the D-D direction of Figure 10;
Figure 12 is the structural representation of the band shoulder nut of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Figure 13 is the sectional structure schematic diagram of the E-E direction of Figure 12;
Figure 14 is the structural representation of the pillar of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Figure 15 is the sectional structure schematic diagram of the F-F direction of Figure 14;
Figure 16 is the structural representation of the pull bar of engine cylinder hole water cavity sealing device for leakage check of the present utility model;
Figure 17 is the sectional structure schematic diagram of the G-G direction of Figure 16;
Figure 18 is the application structure schematic diagram of engine cylinder hole water cavity sealing device for leakage check of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is described in detail, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.It will be appreciated that, mentioned in the following mode of execution of the present utility model " 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 only are for convenience of explanation, do not represent the restriction to the concrete technological scheme of the utility model.
As shown in Figure 3 and Figure 4, engine cylinder hole water cavity sealing device for leakage check of the present utility model comprises: the pillar mechanism of sealing mechanism, lower seal mechanism on going up sealing mechanism, lower seal mechanism and being connected this.Upper sealing mechanism is used for sealing water cavity top, cylinder hole, and lower seal mechanism is used for sealing water cavity bottom, cylinder hole, has just formed like this cylinder hole water cavity of sealing between upper sealing mechanism and lower seal mechanism, and water channel leak test gas carries out leak test by this cylinder hole water cavity.
Wherein, upper sealing mechanism comprises from down to up: setting sleeve 11, the first seal ring 12, rubber cushion 13 and fixed plate 14.As shown in Figure 5 and Figure 6, setting sleeve 11 is up big and down small ladder disc structure, and the joining portion of big or small ladder disk offers the seal groove 111 that holds the first seal ring 12; The bottom shallow bid has the skirt section 112 to downward-extension, and 112 lower ends, skirt section have the wedge shape guide portion, and upper sealing mechanism plays leading role when inserting the cylinder hole; The middle part axially offers the up big and down small ladder circular hole 113 of perforation, is used for wearing pillar mechanism.Rubber cushion 13 is circular, is arranged between setting sleeve 11 and the fixed plate 14.As shown in Figure 7, fixed plate 14 is the rectangular plate with chamfering, and the middle part offers the flat round hole 141 that passes for pillar mechanism, also offers the bolt hole 142 with the cylinder deck fixing seal around the flat round hole 141; The left and right side of fixed plate 14 has been bolted respectively rectangle handle 143.
Lower seal mechanism comprises from down to up: sealing plate 21, the second seal ring 22, pressing plate 23 and guide plate 24.Such as Fig. 8 and shown in Figure 9, sealing plate 21 is inverted tapered disk, and the middle part offers the through hole 211 that passes for pillar mechanism.As shown in Figure 10 and Figure 11, pressing plate 23 also is discoid, the middle part axially offers up big and down small ladder circular hole, and big hole 231 wherein is and the reverse taper holes of tapered disk sealing plate 21 adaptive suits that the second seal ring 22 is arranged on sealing plate 21 and is set with in the skewed slot that forms with pressing plate 23.Guide plate 24 adopts plastic materials,, plays and leads and protective action on pressing plate 23 by lining 241 location and screw fastening, avoids sealing mechanism and lower seal mechanism and cylinder hole direct friction and damages the cylinder hole.
Pillar mechanism comprises: pillar 31, pull bar 32, band shoulder nut 33 and back-up ring 34.Such as Figure 14 and shown in Figure 15, pillar 31 is tubulose, and two ends have respectively and the aperture of setting sleeve ladder circular hole 113, the insertion end of sealing plate through hole 211 adaptive insertions, and is welded and fixed after inserting.Such as Figure 16 and shown in Figure 17, pull bar 32 is bolt shape, and the bar section of bolt shape pull bar 32 comprises: polished rod 321 and screw rod 322, and oblate 323 and circlip groove 324 between the two.During assembling, pull bar 32 from down to up penetrate pillar 31, oblate 323 flat round hole 141 that is positioned at fixed plate 14; Screw rod 322 stretches out fixed plate 14, by band shoulder nut 33 be spirally connected fixing (such as Figure 12 and shown in Figure 13); Back-up ring 34 is arranged in the circlip groove 324, is used for blocking pull bar 32 it is dropped.Pressing plate 23 and sealing plate 21 guarantee with one heart by pull bar 32 external cylindrical surfaces.
As shown in figure 18, during use, will be with first shoulder nut 33 to unscrew, pressing plate 23 resets downwards owing to Action of Gravity Field, the second seal ring 22 be in not compressed nature (pressing plate is away from sealing plate, seal ring recover nature and in close in the space between sealing plate and the pressing plate).At this moment, the sealing device is packed in the cylinder body cylinder hole.After being in place, fixed plate 14 and cylinder body 4 end faces are fixedly realized the water channel sealing in other ducts of cylinder deck by bolt, the rubber cushion 13 protection cylinder decks of fixed plate below 14 do not damage.At this moment, the first seal ring 12 is fitted with cylinder hole step surface, sealing top, cylinder hole.During work, upper taut band shoulder nut 33, pull bar 32 stressed up lifting pressing plates 23, promoting the second seal ring 22 rises, using of sealing plate 21 tapered slope, the second seal ring 22 stretches and expands outward, and seal ring outward edge and cylinder body cylinder hole wall are fitted, thereby fit with part sealing under the cylinder hole, to form the cylinder hole water cavity 6 of sealing in inward flange and pressing plate inclined-plane.
This engine cylinder hole water cavity sealing device for leakage check is simple and reasonable, realizes part sealing under the cylinder hole by band shoulder lift nut pull bar, and the leak test sealing reliability is high, and is easy and simple to handle, avoids the cylinder sleeve repeated disassembled and assembled easily to damage cylinder body cylinder hole and cylinder sleeve itself; Can also utilize simultaneously fixed plate to realize the water channel sealing in other ducts of cylinder deck, the application of having saved original supporting Sealing.
Above disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (5)
1. an engine cylinder hole water cavity sealing device for leakage check is characterized in that, comprising: upper sealing mechanism, lower seal mechanism and the pillar mechanism that is connected described upper sealing mechanism, lower seal mechanism; Described upper sealing mechanism comprises from down to up: setting sleeve, the first seal ring, rubber cushion and fixed plate, described setting sleeve are up big and down small ladder disc structure, and the joining portion of big or small ladder disk offers the seal groove that holds described the first seal ring; Described lower seal mechanism comprises from down to up: sealing plate, the second seal ring and pressing plate, described sealing plate is inverted tapered disk, described pressing plate also is discoid, the middle part axially offers up big and down small ladder circular hole, big hole wherein is and the reverse taper holes of the adaptive suit of described tapered disk sealing plate that described the second seal ring is arranged in the skewed slot of described sealing plate with the formation of pressing plate suit; Described pillar mechanism comprises: pillar, pull bar and band shoulder nut, described pillar two ends are separately fixed on described setting sleeve and the sealing plate, described pull bar be located in described pressing plate, sealing plate, in pillar, setting sleeve, rubber cushion and the fixed plate, and by the nut check of described band shoulder.
2. engine cylinder hole water cavity sealing device for leakage check according to claim 1, it is characterized in that: the bottom shallow bid of described setting sleeve has the skirt section to downward-extension, and lower end, described skirt section has the wedge shape guide portion.
3. engine cylinder hole water cavity sealing device for leakage check according to claim 1 is characterized in that: also be provided with guide plate below the described pressing plate.
4. engine cylinder hole water cavity sealing device for leakage check according to claim 1 is characterized in that: described pillar mechanism also comprises and is arranged on the back-up ring that described pull bar passes described setting sleeve position.
5. each described engine cylinder hole water cavity sealing device for leakage check in 4 according to claim 1, it is characterized in that: described pull bar is located in the described fixed plate by oblate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301931 CN202732944U (en) | 2012-06-26 | 2012-06-26 | Sealing device for leakage test on cylinder bore water cavity of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301931 CN202732944U (en) | 2012-06-26 | 2012-06-26 | Sealing device for leakage test on cylinder bore water cavity of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732944U true CN202732944U (en) | 2013-02-13 |
Family
ID=47658645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220301931 Expired - Fee Related CN202732944U (en) | 2012-06-26 | 2012-06-26 | Sealing device for leakage test on cylinder bore water cavity of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732944U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512709A (en) * | 2012-06-26 | 2014-01-15 | 广西玉柴机器股份有限公司 | Engine cylinder hole water chamber leakage testing sealing device |
| CN105319023A (en) * | 2015-12-04 | 2016-02-10 | 南车戚墅堰机车有限公司 | Machine body water cavity pumping pressure sealing device and pumping pressure sealing method |
-
2012
- 2012-06-26 CN CN 201220301931 patent/CN202732944U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512709A (en) * | 2012-06-26 | 2014-01-15 | 广西玉柴机器股份有限公司 | Engine cylinder hole water chamber leakage testing sealing device |
| CN105319023A (en) * | 2015-12-04 | 2016-02-10 | 南车戚墅堰机车有限公司 | Machine body water cavity pumping pressure sealing device and pumping pressure sealing method |
| CN105319023B (en) * | 2015-12-04 | 2018-02-13 | 南车戚墅堰机车有限公司 | A kind of machine body water cavity pump pressure sealing device and pump pressure encapsulating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20170626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |