CN204831720U - Internal -combustion engine valve leakproofness detection device - Google Patents
Internal -combustion engine valve leakproofness detection device Download PDFInfo
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- CN204831720U CN204831720U CN201520607483.1U CN201520607483U CN204831720U CN 204831720 U CN204831720 U CN 204831720U CN 201520607483 U CN201520607483 U CN 201520607483U CN 204831720 U CN204831720 U CN 204831720U
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Abstract
The utility model discloses an internal -combustion engine valve leakproofness detection device, including the workstation, be provided with the panel on the workstation, the detection actuating mechanism of setting on the panel and the operating mechanism of control detection actuating mechanism action, detect lower the detections cylinder block that actuating mechanism includes lower extreme and panel be airtight connection, but with time detect cylinder block relative movement and detect the cylinder head on, operating mechanism detects the cylinder head up -and -down motion through quickening the gear train on rack, cantilever beam messenger, detect cylinder head and the lower gai heyu separation that detects the cylinder block in the realization. This detection device spiracular leakproofness of can short -term test valve manufacture factory dispatching from the factory, and simple structure, occupy small, convenient operation. But wide application in internal -combustion engine valve leakproofness detection area.
Description
Technical field
The utility model relates to engine valve detection field, especially relates to the sealing device for fast detecting of engine valve manufacturer when valve dispatches from the factory.
Background technology
Can open by valve actuating mechanism in good time or close engine valve, during valve opening, the high-temp waste gas after live gas enters cylinder or burning be discharged from cylinder through valve; During valve-closing, internal combustion engine is then in compression or working stroke.Valve disc is a conically disk, and side is circular conical surface, and the sealing property quality between it and valve retainer directly affects working efficiency of internal combustion engine.Valve sealing is bad, and in compression and impulse stroke, the gas in cylinder will spill, and causes power of IC engine decline, oil consumption increase, difficulty in starting etc.
The surface processing accuracy of valve side circular conical surface directly affects its sealing, therefore, after valve manufactures completion, must carry out the inspection of sealing; In addition, valve installation use in, through with seat ring grind mate after also must have Leakage Test.These two kinds inspections, in the life cycle of valve, can not replace mutually, both have any different and be also related, be all absolutely necessary.And without Leakage Test after valve manufacturing completion, or the product of disqualified upon inspection does not then allow to come into the market.
Valve sealing performance is detected, traditional method generally has kerosene osmosis, negative-pressure vacuum method of testing etc., application kerosene osmosis and negative pressure method, can detect after general need assemble the part such as valve spring, locker, detecting a valve needs to reach about 10min, and efficiency is low, general only in short run maintenance activity, therefore, the Leakage Test carried out after valve grinding operation, is not suitable for valve and produces the large batch of air valve tightness inspection of product man.
If Chinese Patent Application No. is 201410114058.9 disclose a kind of valve sealing performance automatic checking device, it is characterized in that: comprise and detect seat storehouse, described detection seat storehouse is provided with leak hunting seat and airtight chamber, the described seat that leaks hunting is located at the upper end detecting seat storehouse, the described seat that leaks hunting is provided with the bell consistent with engine valve seat tapering, described airtight chamber is provided with gas injection port, also comprise: a vacuum cup mechanism of mating with the large end of valve, a cylinder pressure head that can compress the large end of valve adjustable snap-in force, a force measuring machine that can detect cylinder pressure head snap-in force, one and the joining air pressure change testing agency of gas injection port, and the PLC matched.The present invention can complete detection operation, dependable performance automatically, and detection efficiency is high, significantly reduces production cost, effectively prevent the undetected phenomenon causing substandard product to come into the market of sampling observation.But this system architecture is complicated, and cost is high.
Utility model content
The purpose of this utility model is to provide a kind of engine valve device for detecting sealability, solves the problem that existing engine valve device for detecting sealability detection efficiency is low.
The utility model solves the technical scheme that its technical matters adopts: a kind of engine valve device for detecting sealability, comprise worktable, worktable is provided with panel, is arranged on detection topworks on panel and controls to detect the catanator of topworks's action; Described detection topworks comprises the lower end lower detection cylinder block that be connected airtight with panel, acts on the connection that upper detection cylinder head realizes upper detection cylinder head and lower detection cylinder block with catanator described in the relatively-movable upper detection cylinder head of lower detection cylinder block and is separated.
Described lower detection cylinder block comprises lower detection cylinder block cylinder body, be arranged on the valve retainer suitable with valve to be detected of lower detection cylinder block cylinder body one end, in lower detection cylinder block cylinder body and the below being positioned at valve retainer is provided with upper chamber, the other end of lower detection cylinder block cylinder body is provided with lower chamber, between upper chamber with lower chamber, is provided with the vent cap of the effect of connection; Described panel is also provided with the exhausr port be connected with lower chamber, exhausr port is connected with flexible pipe, and the other end of flexible pipe inserts in water; The valve guide bushing coordinated with engine valve stem is also provided with in described lower detection cylinder block cylinder body.Being provided with the hollow gas chamber be communicated with lower detection cylinder block cylinder body in described upper detection cylinder head, being also provided with gas admittance valve and vent valve and the tensimeter for detecting hollow gas chamber pressure.
Detect for convenience of realizing fast installing, described catanator comprises driving gear, the tooth bar driven by driving gear, described panel is fixedly installed rack guide rail vertically, the upper end of tooth bar is fixedly installed the semi-girder arranged in the horizontal direction, and the other end of semi-girder is fixedly connected with upper detection cylinder head.
Described driving gear is connected with handwheel, handwheel and driving gear spline joint; Also be provided with accelerating gear group between described driving tooth wheel and rack, described accelerating gear group comprises intermeshing neutral gear and follower gear, and neutral gear engages with driving gear, and driven tooth wheel and rack engages; The number of teeth of described driving gear, neutral gear, follower gear is successively decreased successively.
Concrete, described gas admittance valve comprises the air intake opening be arranged in detection cylinder head, and air intake opening inner end is provided with gas admittance valve spool, is also provided with hollow nut, and hollow nut and gas admittance valve valve core chamber are provided with air inlet spring; The outer end of described air intake opening is also provided with the inlet suction port docked with air induction hose.Described vent valve comprises the exhaust passage be arranged in detection cylinder head, the end, exhaust passage being positioned at hollow gas chamber side is provided with retaining valve hollow nut, the other end of exhaust passage is provided with push rod hollow nut, also be provided with Elastic valve core, push rod in exhaust passage, push rod hollow nut is stretched out in one end of push rod; Be provided with holddown spring between described Elastic valve core and retaining valve hollow nut, be provided with retracing spring between Elastic valve core and push rod, the spring force of holddown spring is greater than retracing spring.
The beneficial effects of the utility model: the utility model is coordinated by lower detection cylinder block and upper detection cylinder head, form an airtight space, imitate the installation environment of valve on complete machine, for detecting the sealing of valve, structure is simple, easy for installation, can install and detect that whether air valve tightness to be measured is qualified fast, and manufacturing cost is relatively low.In addition, versatility is good, when testing the valve of different model, only needs to change valve retainer.Described catanator is easy to operate, laborsaving; , stablize meanwhile, not fragile.The requirement that valve manufacturer is detected fast can be met.
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is lower detection cylinder block cut-open view in the utility model.
Fig. 3 is upper detection cylinder head cut-open view in the utility model.
Fig. 4 is worktable cut-open view in the utility model.
Fig. 5 is the cut-open view of the utility model middle rack guide rail and tooth bar matching relationship.
Fig. 6 is the perspective view of semi-girder in the utility model.
Fig. 7 is the perspective view of bracket in the utility model.
In figure: 1, worktable; 2, panel; 3, lower detection cylinder block; 4, upper detection cylinder head; 5, tensimeter; 6, semi-girder; 7, the second bolt hole; 8, bracket; 9, rack guide rail; 10, tooth bar; 11, follower gear; 12, neutral gear; 13, driving gear; 14, handwheel; 15, gear case; 16, lower detection cylinder block cylinder body; 17, seal groove; 18, valve retainer; 19, upper chamber; 20, valve guide bushing; 21, vent cap; 22, lower chamber; 23, upper detection cylinder head cylinder body; 24, air intake opening; 25, gas admittance valve spool; 26, inlet suction port; 27, air inlet spring; 28, hollow nut; 29, the first threaded hole; 31, threaded hole; 32, retaining valve hollow nut; 33, holddown spring; 34, Elastic valve core; 35, retracing spring; 36, bleed passage, 37, push rod; 39, push rod hollow nut; 40, sealing gasket; 41, O RunddichtringO; 43, hollow gas chamber; 44, seal holder ring; 45, exhausr port; 46, dovetail groove; 47, dovetail configuration; 48, gas admittance valve; 49, vent valve.
Embodiment
Embodiment, as shown in Fig. 1 to 7, a kind of engine valve device for detecting sealability, comprises worktable 1, worktable 1 is provided with panel 2, is arranged on detection topworks on panel 2 and controls to detect the catanator of topworks's action.Described detection topworks comprises the lower end lower detection cylinder block 3 that be connected airtight with panel 2, lower detection cylinder block 3 comprises lower detection cylinder block cylinder body 16, described panel 2 is provided with the seal holder ring 44 suitable with lower detection cylinder block cylinder body 16, the bottom of lower detection cylinder block cylinder body 16 is contained in seal holder ring 44, realizes fixing and sealing.Also comprise detection cylinder head 4, described lower detection cylinder block cylinder body 16 upper surface is provided with the seal groove 17 suitable with upper detection cylinder head 4, the bottom of upper detection cylinder head 4 is placed in seal groove 17, and the lower outside wall of upper detection cylinder head 4 is also provided with O RunddichtringO 41.Lower detection cylinder block 3 realizes being tightly connected by seal groove 17 with upper detection cylinder head 4.Described catanator acts on the connection that detection cylinder head 4 realizes detection cylinder head 4 and lower detection cylinder block 3 and is separated;
Described lower detection cylinder block 3 also comprises the valve retainer 18 suitable with valve to be detected being arranged on lower detection cylinder block cylinder body 16 one end, in lower detection cylinder block cylinder body 16 and the below being positioned at valve retainer 18 is provided with upper chamber 19, the other end of lower detection cylinder block cylinder body 16 is provided with lower chamber 22, between upper chamber 19 with lower chamber 22, is provided with the vent cap 21 of the effect of connection.Described panel 2 is also provided with the exhausr port 45 be connected with lower chamber 22, exhausr port 45 is connected with flexible pipe, and the other end of flexible pipe inserts in water.Also be provided with the valve guide bushing 20 coordinated with engine valve stem in described lower detection cylinder block cylinder body 16, valve to be measured is arranged in valve guide bushing 20.
Described upper detection cylinder head 4 comprises detection cylinder head cylinder body 23, is provided with the hollow gas chamber 43 be communicated with lower detection cylinder block cylinder body 16 in cylinder head 4, is also provided with gas admittance valve 48 and vent valve 49 and the tensimeter 5 for detecting hollow gas chamber 43 pressure.The top of described upper detection cylinder head cylinder body 23 has threaded hole 31, and tensimeter 5 is fixed on upper detection cylinder head cylinder body 23 and test side by threaded hole 31 and is placed in hollow gas chamber 43.
Described gas admittance valve 48 is arranged on the sidewall of detection cylinder head cylinder body 23, comprise the air intake opening 24 be arranged in detection cylinder head 4, air intake opening 24 inner end is provided with gas admittance valve spool 25, gas admittance valve 48 is positioned at hollow gas chamber 43 inner end and is also provided with hollow nut 28, hollow nut 28 is threaded and is fixed on detection cylinder head cylinder body 23, and the centre position of hollow nut 28 is provided with the through hole that supplied gas enters.Air inlet spring 27 is provided with between hollow nut 28 and gas admittance valve spool 25; Gas admittance valve spool 25 is pressed on the step surface of air intake opening 24 by described air inlet spring 27, realizes sealing.The outer end of described air intake opening 24 is also provided with the inlet suction port 26 docked with air induction hose.Gas admittance valve 48 is in normally off, when air inlet, pressure-air overcomes the pressure of air inlet spring 27, gas admittance valve spool 25 is moved to the inside and opens, gas enters in hollow gas chamber 43 through air intake opening 24 and hollow nut 28, thus applies air pressure to the upper end of valve.
Described vent valve 49 is symmetrical arranged with gas admittance valve 48, comprise the exhaust passage 36 be arranged in detection cylinder head 4, the end, exhaust passage 36 being positioned at hollow gas chamber 43 side is provided with retaining valve hollow nut 32, the other end of exhaust passage 36 is provided with push rod hollow nut 39, push rod hollow nut 39 is provided with two holes, install for push rod 37 for one, another is used for discharging air.Elastic valve core 34, push rod 37 is also provided with in exhaust passage 36.Push rod hollow nut 39 is stretched out in one end of push rod 37, and push rod 37 is provided with step surface, and step surface leans against in push rod hollow nut 39, is also provided with the sealing gasket 40 sealed between step surface and push rod hollow nut 39.Be provided with holddown spring 33 between described Elastic valve core 34 and retaining valve hollow nut 32, be provided with retracing spring 35 between Elastic valve core 34 and push rod 37, the spring force of holddown spring 33 is greater than retracing spring 35.Vent valve 49 is in normally off, when needs are vented, promote push rod 37 and make Elastic valve core 34 overcome the resistance of holddown spring 33, Elastic valve core 34 is opened, the through hole of air in retaining valve hollow nut 32 enters exhaust passage 36, then is discharged by the through hole in push rod hollow nut 39.
Described catanator comprises driving gear 13, driving gear 13 is connected with handwheel 14, handwheel 14 and driving gear 13 spline joint, and armrest shake handwheel drives driving gear 13 to rotate.After driving gear 13, be provided with an accelerating gear group, be fixedly installed rack guide rail 9 vertically, rack guide rail 9 be provided with tooth bar 10 in the side of panel 2, tooth bar 10 can be movable on rack guide rail 9.Concrete fit structure is, described rack guide rail 9 is provided with dovetail groove 46, and the bottom of described tooth bar 10 is provided with the dovetail configuration 47 suitable with dovetail groove 46.
Described accelerating gear group comprises intermeshing neutral gear 12 and follower gear 11, and neutral gear 12 engages with driving gear 13, and follower gear 11 engages with tooth bar 10; The number of teeth of described driving gear 13, neutral gear 12, follower gear 11 is successively decreased successively.Like this, just can with the less number of turns of hand wheel rotating thus the quick movement of band carry-over bar 10.Described panel 2 is fixedly installed a gear case 15, described driving gear 13, neutral gear 12, follower gear 11 are all erected on gear case 15.Can lubricating oil be placed bottom gear case 15, provide lubrication to gear.
In addition, described operating mechanism also can be that motor or other power sources drive driving gear, then is moved up and down by driving gear band carry-over bar.
The upper end of described tooth bar 10 is fixed with the semi-girder 6 arranged in the horizontal direction, and the other end of semi-girder 6 is fixedly connected with upper detection cylinder head 4.Described tooth bar 10 is fixedly connected with by " L " type bracket 8 with between semi-girder 6, and two installed surfaces of bracket 8 are provided with the second bolt hole 7, and bracket 8 is fixedly connected with semi-girder 6 with tooth bar 10 respectively by bolt.One end that described semi-girder 6 coordinates with upper detection cylinder head 4 is loop configuration, loop configuration is provided with one group of mounting hole, described upper detection cylinder head 4 is provided with one group of first threaded hole 29 suitable with mounting hole, semi-girder 6 is fixedly connected with by one group of bolt with upper detection cylinder head 4.
A kind of course of work of engine valve device for detecting sealability is: be arranged on by valve on the valve retainer 18 of lower cylinder seat 3, moved downward by driving gear band carry-over bar, thus make the quick-make campaign of detection cylinder head 4 and lower detection cylinder block 3, then air compressor is opened, the pressure that pressure-air overcomes air inlet spring 27 backs down gas admittance valve spool 25, pressure-air exports from air compressor, air intake opening 24 enters hollow gas chamber, air compressor is closed when rain glass 5 reading rises to scheduled pressure value, if blow-by between valve and seat ring, then pressure-air flows into upper chamber 19 by the gap between valve and valve retainer 18, flow into lower chamber 21 again, water tumbler is flowed into via exhaust hose, produce bubble, so just can judge that this valve is rejected part, if good seal between valve and seat ring, then in water tumbler, bubble-free produces, after detection, promote push rod 37 and back down Elastic valve core 34, air in hollow gas chamber 43 is flowed into bleed passage 36 by retaining valve hollow nut 32 opening, is flowed out through push rod hollow nut 39, after having lost heart, unclamp push rod 37, holddown spring 33 promotes Elastic valve core 34 and closes outlet passageway, and push rod 37 is pushed into the one end away from Elastic valve core by retracing spring 35, push rod 37 press seal pad 40.Then counter-rotation driving gear, makes detection cylinder head 4 and lower detection cylinder block 5 quick separating, is taken out by valve, carries out the next one and detects.
Below by reference to the accompanying drawings the utility model is exemplarily described.Obviously, the utility model specific implementation is not subject to the restrictions described above.As long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; Or without improvement, above-mentioned design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model.
Claims (9)
1. an engine valve device for detecting sealability, comprise worktable (1), worktable (1) is provided with panel (2), is arranged on detection topworks on panel (2) and controls to detect the catanator of topworks's action; It is characterized in that: described detection topworks comprises the lower end lower detection cylinder block (3) that be connected airtight with panel (2), upper detection cylinder head (4) relatively-movable with lower detection cylinder block (3), described catanator acts on the connection that detection cylinder head (4) realizes detect cylinder head (4) and lower detection cylinder block (3) and is separated;
Described lower detection cylinder block (3) comprises lower detection cylinder block cylinder body (16), be arranged on the valve retainer (18) suitable with valve to be detected of lower detection cylinder block cylinder body (16) one end, in lower detection cylinder block cylinder body (16) and the below being positioned at valve retainer (18) is provided with upper chamber (19), the other end of lower detection cylinder block cylinder body (16) is provided with lower chamber (22), between upper chamber (19) with lower chamber (22), is provided with the vent cap (21) of the effect of connection; Described panel (2) is also provided with the exhausr port (45) be connected with lower chamber (22), exhausr port (45) is connected with flexible pipe, and the other end of flexible pipe inserts in water; The valve guide bushing (20) coordinated with engine valve stem is also provided with in described lower detection cylinder block cylinder body (16);
Being provided with the hollow gas chamber (43) be communicated with lower detection cylinder block cylinder body (16) in described upper detection cylinder head (4), being also provided with gas admittance valve (48) and vent valve (49) and the tensimeter (5) for detecting hollow gas chamber (43) pressure.
2. engine valve device for detecting sealability as claimed in claim 1, it is characterized in that: described catanator comprises driving gear (13), the tooth bar (10) driven by driving gear (13), described panel (2) is fixedly installed rack guide rail (9) vertically, the upper end of tooth bar (10) is fixedly installed the semi-girder (6) arranged in the horizontal direction, and the other end of semi-girder (6) is fixedly connected with upper detection cylinder head (4).
3. engine valve device for detecting sealability as claimed in claim 2, it is characterized in that: described driving gear (13) is connected with handwheel (14), handwheel (14) and driving gear (13) spline joint; Accelerating gear group is also provided with between described driving gear (13) and tooth bar (10), described accelerating gear group comprises intermeshing neutral gear (12) and follower gear (11), neutral gear (12) engages with driving gear (13), and follower gear (11) engages with tooth bar (10); The number of teeth of described driving gear (13), neutral gear (12), follower gear (11) is successively decreased successively.
4. engine valve device for detecting sealability as claimed in claim 2, it is characterized in that: described rack guide rail (9) is provided with dovetail groove (46), the bottom of described tooth bar (10) is provided with the dovetail configuration (47) suitable with dovetail groove (46).
5. engine valve device for detecting sealability as claimed in claim 3, it is characterized in that: described panel (2) is fixedly installed a gear case (15), described driving gear (13), neutral gear (12), follower gear (11) are all erected on gear case (15).
6. engine valve device for detecting sealability as claimed in claim 2, it is characterized in that: the bracket (8) being provided with " L " type between described tooth bar (10) and semi-girder (6), two installed surfaces of bracket (8) are provided with the second bolt hole (7), and bracket (8) is fixedly connected with semi-girder (6) with tooth bar (10) respectively by bolt.
7. engine valve device for detecting sealability as claimed in claim 1, it is characterized in that: described gas admittance valve (48) comprises the air intake opening (24) be arranged in detection cylinder head (4), air intake opening (24) inner end is provided with gas admittance valve spool (25), also be provided with hollow nut (28), between hollow nut (28) and gas admittance valve spool (25), be provided with air inlet spring (27); The outer end of described air intake opening (24) is also provided with the inlet suction port (26) docked with air induction hose.
8. engine valve device for detecting sealability as claimed in claim 1, it is characterized in that: described vent valve (49) comprises the exhaust passage (36) be arranged in detection cylinder head (4), exhaust passage (36) end being positioned at hollow gas chamber (43) side is provided with retaining valve hollow nut (32), the other end of exhaust passage (36) is provided with push rod hollow nut (39), Elastic valve core (34) is also provided with in exhaust passage (36), push rod (37), push rod hollow nut (39) is stretched out in one end of push rod (37), holddown spring (33) is provided with between described Elastic valve core (34) and retaining valve hollow nut (32), be provided with retracing spring (35) between Elastic valve core (34) and push rod (37), the spring force of holddown spring (33) is greater than retracing spring (35).
9. engine valve device for detecting sealability as claimed in claim 1, it is characterized in that: described lower detection cylinder block cylinder body (16) upper surface is provided with the seal groove (17) suitable with upper detection cylinder head (4), the bottom of upper detection cylinder head (4) is placed in seal groove (17), and the lower outside wall of upper detection cylinder head (4) is also provided with O RunddichtringO (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607483.1U CN204831720U (en) | 2015-08-10 | 2015-08-10 | Internal -combustion engine valve leakproofness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607483.1U CN204831720U (en) | 2015-08-10 | 2015-08-10 | Internal -combustion engine valve leakproofness detection device |
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| Publication Number | Publication Date |
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| CN204831720U true CN204831720U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520607483.1U Expired - Fee Related CN204831720U (en) | 2015-08-10 | 2015-08-10 | Internal -combustion engine valve leakproofness detection device |
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| CN (1) | CN204831720U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973537A (en) * | 2016-07-08 | 2016-09-28 | 北京动力机械研究所 | Pincer type duplex sealing detection apparatus |
| CN109186410A (en) * | 2018-10-07 | 2019-01-11 | 德清弘达精密陶瓷有限公司 | Novel test device for high technology ceramics |
| CN110763401A (en) * | 2019-10-17 | 2020-02-07 | 东莞理工学院 | Air tightness testing equipment convenient for cleaning internal parts for rail health maintenance |
| CN111426426A (en) * | 2020-04-22 | 2020-07-17 | 扬州润盈机械有限公司 | Novel gas tightness detection device for internal combustion engine accessories |
-
2015
- 2015-08-10 CN CN201520607483.1U patent/CN204831720U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105973537A (en) * | 2016-07-08 | 2016-09-28 | 北京动力机械研究所 | Pincer type duplex sealing detection apparatus |
| CN109186410A (en) * | 2018-10-07 | 2019-01-11 | 德清弘达精密陶瓷有限公司 | Novel test device for high technology ceramics |
| CN110763401A (en) * | 2019-10-17 | 2020-02-07 | 东莞理工学院 | Air tightness testing equipment convenient for cleaning internal parts for rail health maintenance |
| CN111426426A (en) * | 2020-04-22 | 2020-07-17 | 扬州润盈机械有限公司 | Novel gas tightness detection device for internal combustion engine accessories |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20160810 |
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| CF01 | Termination of patent right due to non-payment of annual fee |