CN105738040A - Individual cylinder cap water channel leakage detection device and detection method - Google Patents
Individual cylinder cap water channel leakage detection device and detection method Download PDFInfo
- Publication number
- CN105738040A CN105738040A CN201610075158.4A CN201610075158A CN105738040A CN 105738040 A CN105738040 A CN 105738040A CN 201610075158 A CN201610075158 A CN 201610075158A CN 105738040 A CN105738040 A CN 105738040A
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- cylinder head
- water channel
- head body
- detecting device
- cylinder cap
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- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention relates to the technical field of cylinder cap detection, and particularly relates to an individual cylinder cap water channel leakage detection device comprising a cylinder cap body. The cylinder cap body is internally provided with a water channel. The outlet of the water channel is arranged at the top part or the side surface of the cylinder cap body. The inlet of the water channel is arranged at the bottom surface of the cylinder cap body. A bottom plate is fixed at the bottom part of the cylinder cap body, and a sealing gasket is arranged between the bottom plate and the cylinder cap body and used for sealing the inlet of the water channel. The sealing gasket is fixed at the bottom part of the cylinder cap body through the bottom plate. The outlet of the water channel is connected with a ventilation pipeline in a sealing way through a connector. An air storage tank is connected at the inlet of the ventilation pipeline and used for piping compressing air into the water channel. The detection device is convenient to carry, easy to operate and short in time consumption so that labor intensity and cost are reduced.
Description
Technical field
The present invention relates to cylinder head detection technique field, particularly relate to a kind of single-body type cylinder head water channel leak detecting device and detection method.
Background technology
Cylinder head is that in all parts of diesel engine, structure is the most complicated, and bears mechanical load and the maximum parts of thermal force.In diesel engine runs, bear the effect of varying duty all the time, often expose its rigidity or the problem of intensity deficiency.WP3 diesel engine is four cylinder engine, and employing is single-body type cylinder head, when the water leakage fault caused because of cracked cylinder head occurs in electromotor, it is necessary to quickly find out which cylinder head and there occurs fault.Existing cylinder head water channel Leak Detection needs special water pressure test equipment and frock clamp, other users such as the engine production factory of use cylinder head do not have this equipment sometimes, typically require the cylinder head manufacturer delivering to specialty to detect, take time and effort, and cost is high.
Summary of the invention
(1) to solve the technical problem that
The technical problem to be solved in the present invention is to solve cylinder head water channel Leak Detection in prior art to need Special experimental equipment, in-convenience in use and the problem long, cost is high that expends time in.
(2) technical scheme
In order to solve above-mentioned technical problem, the invention provides a kind of single-body type cylinder head water channel leak detecting device, including cylinder head body, described cylinder head is originally internal is provided with water channel, the outlet of water channel is positioned at top or the side of described cylinder head body, and the import of water channel is positioned at the bottom surface of described cylinder head body, and described cylinder head body bottom portion is fixed with base plate, and it is provided with sealing gasket between base plate and described cylinder head body, it is used for sealing described water channel import；Described sealing gasket is fixed on the bottom of described cylinder head body by base plate, and the exit of described water channel is tightly connected by joint and breather line, and the import department of described breather line is connected to air accumulator, for passing into compression gas in described water channel.
According to the present invention, described base plate is fixed by the first cylinder head bolt matched with the bolt hole of described cylinder head body with sealing gasket.
According to the present invention, between described joint and described cylinder head body, it is provided with pad.
According to the present invention, between described air accumulator and described breather line, it is provided with pressure-control valve.
Present invention also offers the detection method of a kind of above-mentioned single-body type cylinder head water channel leak detecting device, comprise the following steps:
S1, topped up with water or coolant in described water channel；
S2, described air accumulator passes into gas by breather line in described water channel；
Whether S3, observe and have water or coolant to flow out in the air intake duct of described cylinder head body or exhaust duct.
Present invention also offers the detection method of a kind of above-mentioned single-body type cylinder head water channel leak detecting device, described cylinder head is originally internal is provided with valve and valve fixed structure, and one end of described air intake duct and exhaust duct is blocked by described valve, comprises the following steps:
S1, vertically places described cylinder head body, topped up with water in the air intake duct and exhaust duct of described cylinder head body；
S2, described air accumulator passes into gas by breather line in described water channel；
Whether S3, observe in the air intake duct of described cylinder head body or exhaust duct and have bubble to overflow.
(3) beneficial effect
The technique scheme of the present invention compared with prior art has the advantage that the single-body type cylinder head water channel leak detecting device provided by the present invention cylinder head for single-body type, adopt sealing gasket that the import of water channel is sealed, the exit of water channel connects air accumulator, water channel forms a passage sealed, and can pass into compression gas in water channel.The detecting device of the present invention does not need special testing equipment and frock clamp, it can be detected by the cylinder head users such as electromotor producer whenever and wherever possible, can also be etc. that place is detected at fault in-situ, laboratory, this detecting device is easy to carry, simple to operate, consuming time shorter, reduce labor intensity and cost.The detection method of single-body type cylinder head water channel leak detecting device provided by the present invention is simple and quick, saves time and cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the single-body type cylinder head detecting device that the embodiment of the present invention provides；
Fig. 2 is the part-structure schematic diagram of the single-body type cylinder head with valve that the embodiment of the present invention provides.
In figure: 1: cylinder head body；2: sealing gasket；3: base plate；4: joint；5: air accumulator；6: the first cylinder head bolts；7: standard bolt；8: pressure-control valve；9: pad；11: exhaust valve；12: inlet valve；13: valve collet；14: valve spring upper seat；15: valve spring；16: seat under valve spring；17: valve guide bushing；18: valve seating.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention.
As shown in Figure 1, a kind of single-body type cylinder head water channel leak detecting device that the embodiment of the present invention provides, including cylinder head body 1, being provided with water channel in cylinder head body 1, the outlet of water channel is positioned at top or the side of cylinder head body 1, the import of water channel is positioned at the bottom surface of cylinder head body 1, it is fixed with base plate 3 bottom cylinder head body 1, and between base plate 3 and cylinder head body 1, is provided with sealing gasket 2, be used for sealing water channel import, specifically, sealing gasket 2 can be quality of rubber materials.Sealing gasket 2 is fixed on the bottom of cylinder head body 1 by base plate 3, and the exit of water channel is tightly connected by joint 4 and breather line, and the import department of breather line is connected to air accumulator 5, for passing into compression gas in water channel.The single-body type cylinder head water channel leak detecting device that the embodiment of the present invention provides is for the cylinder head of single-body type, adopt sealing gasket 2 that the import of water channel is sealed, the exit of water channel connects air accumulator 5, and water channel forms a passage sealed, and can pass into compression gas in water channel.To topped up with water in water channel or coolant during use, open air accumulator 5, in water channel, passing into compression gas by breather line, in the air intake duct of observation cylinder head body 1 or exhaust duct, whether have water or coolant to flow out, if having water or coolant to flow out, water channel generation leakage failure being described.The detecting device of the present invention does not need special testing equipment and frock clamp, it can be detected by the cylinder head users such as electromotor producer whenever and wherever possible, can also be etc. that place is detected at fault in-situ, laboratory, this detecting device is easy to carry, simple to operate, consuming time shorter, reduce labor intensity and cost.
Further, in the present embodiment, base plate 3 is fixed by the first cylinder head bolt 6 matched with the bolt hole of cylinder head body 1 with sealing gasket 2.Cylinder head body 1 has multiple bolt hole, the present invention directly adopts the cylinder head bolt matched with the bolt hole of cylinder head body 1 fix, further simplify the parts required for detecting device, while simplifying structure, saved cost.Specifically, in the present embodiment, joint 4 can be fixed by the standard bolt 7 matched with the bolt hole of cylinder head body 1.
Preferably, it is provided with pad between joint 4 and cylinder head body 1.It is provided with the sealing that pad can ensure that between breather line and water channel, improves the accuracy of detection.
Further, in the present embodiment, between air accumulator 5 and breather line, it is provided with pressure-control valve 8.It is provided with pressure-control valve 8 and can accurately control to pass into the pressure of gas in water channel, it is ensured that the safety of detection process and accuracy.
The embodiment of the present invention additionally provides the detection method of a kind of above-mentioned single-body type cylinder head water channel leak detecting device, comprises the following steps:
S1, topped up with water or coolant in water channel；
S2, air accumulator 5 passes into gas by breather line in water channel；Specifically, the pressure passing into gas is 0.4Mpa；
Whether S3, have water or coolant to flow out in the air intake duct of observation cylinder head body 1 or exhaust duct.If no liquid flows out, then can confirm that this cylinder head does not have crack defect.
The detection method that the embodiment of the present invention provides is passed through after the water channel topped up with water sealed, then passes into gas in phase water channel, and water is produced pressure by gas, if cylinder is stamped crackle, then the water in water channel or cooling also will penetrate in air intake duct or exhaust duct.This detection method is simple and convenient.
The embodiment of the present invention additionally provides the detection method of another above-mentioned single-body type cylinder head water channel leak detecting device, valve and valve fixed structure it is provided with in cylinder head body 1, one end of air intake duct and exhaust duct is blocked, namely cylinder head disassemble detect time, valve, valve fixed structure and valve sealing structure are not removed, as shown in Figure 2, inlet valve 12 and exhaust valve 11 are fixed on valve spring upper seat 14 each through valve collet 13, valve guide bushing 17 all it is arranged with outside inlet valve 12 and exhaust valve 11, the lower end of inlet valve 12 and exhaust valve 11 is equipped with valve seating 18, valve spring 16 it is provided with between seat 15 and valve spring upper seat 14 under valve spring, detection method comprises the following steps:
S1, topped up with water in the air intake duct and exhaust duct of cylinder head body 1；
S2, air accumulator 5 passes into gas by breather line in water channel；Specifically, gas controls at about 0.4Mpa, retention time 2～3min.
Whether S3, have bubble to overflow in the air intake duct of observation cylinder head body 1 or exhaust duct.
First one end of air intake duct and exhaust duct is blocked by the detection method that the embodiment of the present invention provides, topped up with water in air intake duct and exhaust duct, air intake duct and exhaust duct form two Miniature pools, gas is passed into again in the water channel sealed, if cylinder head body has crackle, then it is observed that there is bubble to overflow in air intake duct or exhaust duct.
Additionally, no matter the detecting device of the present invention is detection cylinder head body 1, or detection is with the cylinder head of valve dependency structure, all can adopt and pass into compression gas in sealing water channel, then place a device into equipped with water can not have in the container of cylinder head, whether observe in container has bubble to overflow to judge that the water channel of cylinder head has flawless.
In sum, the single-body type cylinder head water channel leak detecting device that the embodiment of the present invention provides is for the cylinder head of single-body type, adopt sealing gasket 2 that the import of water channel is sealed, the exit of water channel connects air accumulator 5, water channel forms a passage sealed, and can pass into compression gas in water channel.To topped up with water in water channel or coolant during use, open air accumulator 5, in water channel, passing into compression gas by breather line, in the air intake duct of observation cylinder head body 1 or exhaust duct, whether have water or coolant to flow out, if having water or coolant to flow out, water channel generation leakage failure being described.The detecting device of the present invention does not need special testing equipment and frock clamp, it can be detected by the cylinder head users such as electromotor producer whenever and wherever possible, can also be etc. that place is detected at fault in-situ, laboratory, this detecting device is easy to carry, simple to operate, consuming time shorter, reduce labor intensity and cost.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a single-body type cylinder head water channel leak detecting device, including cylinder head body, described cylinder head is originally internal is provided with water channel, the outlet of water channel is positioned at top or the side of described cylinder head body, the import of water channel is positioned at the bottom surface of described cylinder head body, it is characterized in that: described cylinder head body bottom portion is fixed with base plate, and is provided with sealing gasket between base plate and described cylinder head body, be used for sealing described water channel import；Described sealing gasket is fixed on the bottom of described cylinder head body by base plate, and the exit of described water channel is tightly connected by joint and breather line, and the import department of described breather line is connected to air accumulator, for passing into compression gas in described water channel.
2. single-body type cylinder head water channel leak detecting device according to claim 1, it is characterised in that: described base plate is fixed by the first cylinder head bolt matched with the bolt hole of described cylinder head body with sealing gasket.
3. single-body type cylinder head water channel leak detecting device according to claim 1, it is characterised in that: it is provided with pad between described joint and described cylinder head body.
4. single-body type cylinder head water channel leak detecting device according to claim 1, it is characterised in that: it is provided with pressure-control valve between described air accumulator and described breather line.
5. the detection method of the single-body type cylinder head water channel leak detecting device as described in any one of claim 1-4, it is characterised in that comprise the following steps:
S1, topped up with water or coolant in described water channel；
S2, described air accumulator passes into gas by breather line in described water channel；
Whether S3, observe and have water or coolant to flow out in the air intake duct of described cylinder head body or exhaust duct.
6. the detection method of the single-body type cylinder head water channel leak detecting device as described in any one of claim 1-4, described cylinder head is originally internal is provided with valve and valve fixed structure, one end of described air intake duct and exhaust duct is blocked by described valve, it is characterised in that comprise the following steps:
S1, vertically places described cylinder head body, topped up with water in the air intake duct and exhaust duct of described cylinder head body；
S2, described air accumulator passes into gas by breather line in described water channel；
Whether S3, observe in the air intake duct of described cylinder head body or exhaust duct and have bubble to overflow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075158.4A CN105738040B (en) | 2016-02-02 | 2016-02-02 | A kind of monomer-type cylinder head water channel leak detecting device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610075158.4A CN105738040B (en) | 2016-02-02 | 2016-02-02 | A kind of monomer-type cylinder head water channel leak detecting device and detection method |
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| CN105738040A true CN105738040A (en) | 2016-07-06 |
| CN105738040B CN105738040B (en) | 2019-05-31 |
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| CN201610075158.4A Active CN105738040B (en) | 2016-02-02 | 2016-02-02 | A kind of monomer-type cylinder head water channel leak detecting device and detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109580113A (en) * | 2018-12-29 | 2019-04-05 | 天长缸盖有限公司 | A kind of detection device whether quick detection cylinder cap leaks |
| CN109765010A (en) * | 2018-12-29 | 2019-05-17 | 天长缸盖有限公司 | A kind of cylinder cap leak-checking apparatus that can accurately search out breakthrough |
| CN109974941A (en) * | 2017-12-27 | 2019-07-05 | 宝沃汽车（中国）有限公司 | Engine leakproofness calibration system and calibration method |
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| CN202119597U (en) * | 2011-06-07 | 2012-01-18 | 宁波裕隆汽车制泵有限公司 | Tooling used for testing gas tightness of cylinder head cover |
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| JPS59171829A (en) * | 1983-03-18 | 1984-09-28 | Japanese National Railways<Jnr> | Hydraulic tester for cylinder head |
| CN201016835Y (en) * | 2006-12-30 | 2008-02-06 | 广西玉柴机器股份有限公司 | Engine cylinder cover pad sealing performance detecting apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109974941A (en) * | 2017-12-27 | 2019-07-05 | 宝沃汽车（中国）有限公司 | Engine leakproofness calibration system and calibration method |
| CN109580113A (en) * | 2018-12-29 | 2019-04-05 | 天长缸盖有限公司 | A kind of detection device whether quick detection cylinder cap leaks |
| CN109765010A (en) * | 2018-12-29 | 2019-05-17 | 天长缸盖有限公司 | A kind of cylinder cap leak-checking apparatus that can accurately search out breakthrough |
| CN109580113B (en) * | 2018-12-29 | 2021-11-26 | 天长缸盖有限公司 | Detection apparatus for whether short-term test cylinder cap seepage is |
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| CN105738040B (en) | 2019-05-31 |
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