CN103398824A - Detection device for exhaust manifold pipe air tightness - Google Patents

Detection device for exhaust manifold pipe air tightness Download PDF

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Publication number
CN103398824A
CN103398824A CN2013103165393A CN201310316539A CN103398824A CN 103398824 A CN103398824 A CN 103398824A CN 2013103165393 A CN2013103165393 A CN 2013103165393A CN 201310316539 A CN201310316539 A CN 201310316539A CN 103398824 A CN103398824 A CN 103398824A
Authority
CN
China
Prior art keywords
cylinder
exhaust manifold
pressure release
release bolt
interface tube
Prior art date
Application number
CN2013103165393A
Other languages
Chinese (zh)
Inventor
汪庭文
叶维敏
张军
何晓鸣
杨军
Original Assignee
成都陵川特种工业有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 成都陵川特种工业有限责任公司 filed Critical 成都陵川特种工业有限责任公司
Priority to CN2013103165393A priority Critical patent/CN103398824A/en
Publication of CN103398824A publication Critical patent/CN103398824A/en

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Abstract

The invention discloses a detection device for exhaust manifold pipe air tightness. The detection device comprises a cylinder connecting plate sealing block and an exhaust main pipe sealing block, wherein the cylinder connecting plate sealing block comprises a base plate (1), at least two fastening bolts (2) fixedly connected with the upper surface of the base plate (1) and a sealing gasket (3) arranged on the upper surface of the base plate (1); the exhaust main pipe sealing block comprises a connecting seat, a main pipe joint (10), an air inlet pipe (9) and a cylinder (7), wherein the connecting seat comprises a web plate (8), two wing plates (5) and two bayonet seats (4). The detection device is simple in structure, the exhaust main pipe sealing block and an exhaust manifold pipe are conveniently and quickly fixed and separated, and the detection device is beneficial to simplifying the detection difficulty of exhaust manifold pipe air tightness and improving the detection efficiency.

Description

The exhaust manifold impermeability detects uses device
Technical field
The present invention relates to exhaust manifold inspection machine field, particularly relate to a kind of exhaust manifold impermeability detection device.
Background technology
Exhaust manifold, be connected with engine cylinder block, the exhaust of each cylinder put together and imports exhaust main, pipeline that band is disagreed.On market, the ternary catalyzing unit of most of engine all is encapsulated in exhaust manifold; if the exhaust manifold generation leakage phenomenon after encapsulation; the waste gas of engine emission does not singly pollute vehicle body; simultaneously whole exhaust-gas treatment effect is had a huge impact; when being unfavorable for environmental protection, also can cause a series of deterioration consequences such as delivery temperature height and the reduction of catalyst converter life-span.
After exhaust manifold each several part making splicing is completed, all need to detect through impermeability before dispatching from the factory, in prior art, but the choice for use defect-detecting equipment is detected a flaw or utilizes aerostatic press to pass into pressurized air in exhaust manifold each road weld seam of exhaust manifold, observe exhaust manifold pressure after certain hour and fall to judge whether good seal of exhaust manifold, but these two kinds of methods exist respectively to operating personnel's level of skill require high, operating personnel are existed radiation injury risk and the long shortcoming of required time.
Summary of the invention
For above-mentioned in checking exhaust manifold impermeability process, use defect-detecting equipment exist to operating personnel's level of skill require high, there is the radiation injury risk in operating personnel and uses aerostatic press to have long problem proving time, the invention provides a kind of exhaust manifold impermeability and detect and use device.
for achieving the above object, exhaust manifold impermeability provided by the invention detects and solves problem with device by following technical essential: the exhaust manifold impermeability detects uses device, comprise cylinder web joint sealing block and exhaust main sealing block, described cylinder web joint sealing block comprises: backing plate, at least two sealing gaskets that are fixedly connected on the tight fixed bolt of described backing plate upper surface and are arranged on described backing plate upper surface, described exhaust main sealing block comprises: Connection Block, total interface tube, draft tube and cylinder, described Connection Block comprises web, two blocks of wing plates and two bayonet mounts, one end of two blocks of described wing plates is fixedly connected on respectively an end of web, the other end of two blocks of described wing plates is fixedly connected with an end of a bayonet mount respectively, described cylinder block is fixedly connected on the central authorities of web, the piston rod end of described cylinder is fixedly connected with total interface tube one end, the other end of described total interface tube is provided with cavity, also be provided with the runner that two ends communicate with outer wall and cavity respectively in total interface tube, described draft tube is fixedly connected on place, total interface tube runner hole, and with runner, communicate.
the tight fixed bolt that arranges is used for being used in conjunction with exhaust manifold upper cylinder web joint coupling bolt through hole, cylinder web joint and cylinder web joint sealing block are fixed together, and the sealing gasket of setting is conducive to the sealing property of cylinder web joint and cylinder web joint sealing block joint face, with the side contacts of exhaust manifold house steward joint flange away from end face and the close web of bayonet mount of exhaust manifold outlet, pass into pressurized air this moment in cylinder, piston rod drives total interface tube and exports motion to the exhaust manifold house steward, final cylinder is applied to acting force on web and exhaust main interface and realizes exhaust main sealing block and the locking of exhaust manifold and total docking of interface tube and exhaust main, pass into pressurized air by draft tube this moment in exhaust manifold, again the connector of the present invention and exhaust manifold is put into water, whether observe has bubble to emerge, whether the exhaust manifold impermeability that just can well react in inspection is good.
Preferably, also comprise O-ring seal, described O-ring seal is arranged on the end face that total interface tube is provided with the cavity end.
The O-ring seal that arranges is conducive to guarantee the excellent sealing of joint face between total interface tube and exhaust main.
Preferably, also comprise the pressure release bolt, also be provided with the pressure release bolt internal thread hole supporting with the pressure release bolt thread on described lower tooth seat, described pressure release bolt internal thread hole communicates with described runner, and described pressure release bolt becomes to be threaded with pressure release bolt internal thread hole.
After the exhaust manifold airtight test is completed, due to the pressure in exhaust manifold higher than external atmosphere pressure, operating personnel directly dismantle exhaust main sealing block or cylinder web joint sealing block, suddenly the pressurized air that overflows may will blow to operating personnel as iron filings, welding slag or other impurity, affect operating personnel's job safety, the pressure release bolt that absent-mindedness or dismounting arrange after detection is completed, fixed point unload the pressurized air in rafting gas manifold, are conducive to safety in production.
Preferably, the screw thread of the screw thread on described pressure release bolt and pressure release bolt internal thread hole is pipe thread.
Pipe thread has better sealing property than STRTHD, is arranged to pipe thread and is conducive to more easily accomplish that leaking does not appear in pressure release bolt place in testing process.
Preferably, the material of described sealing gasket and O-ring seal is rubber.
Because the pressure that the exhaust manifold airtight test uses is little, and rubber has elasticity preferably, adopts quality of rubber materials as encapsulant, can obtain good sealing effectiveness under less snap-in force.
Further, described cylinder is the single-cylinder single-acting cylinder.
To the cylinder air feed time, the cylinder piston rod Shen goes out, and produces the power that is fixed and clamped, during to cylinder exhaust, piston resilience under the effect of spring, piston rod retraction, the interaction force of total interface tube and exhaust manifold removes, and namely adopts the cylinder simple, that cost is low to complete required function.
The present invention has following beneficial effect:
The present invention is simple in structure, processing and manufacturing is easy, check in exhaust manifold impermeability process, exhaust main sealing block and exhaust main are fixing short with convenient separation and elapsed time, after passing into pressurized air to exhaust manifold, whole connector is inserted the exhaust manifold impermeability that just can differentiate clearly in detection in water whether good, existing defect-detecting equipment and the aerostatic press of utilizing, have advantages of that simple to operate, result reflects obviously, checks that elapsed time is short, is conducive to simplify exhaust manifold airtight test difficulty and improves checking efficiency.
Description of drawings
Fig. 1 is that exhaust manifold impermeability of the present invention detects the structural representation with a specific embodiment of device.
Figure acceptance of the bid note is respectively: 1, lower bolster, 2, tight fixed bolt, 3, sealing gasket, 4, bayonet mount, 5, wing plate, 6, the pressure release bolt, 7, cylinder, 8, web, 9, draft tube, 10, total interface tube, 11, O-ring seal.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but structure of the present invention is not limited only to following examples:
Embodiment 1:
as Fig. 1, the exhaust manifold impermeability detects uses device, comprise cylinder web joint sealing block and exhaust main sealing block, described cylinder web joint sealing block comprises: backing plate 1, at least two sealing gaskets 3 that are fixedly connected on the tight fixed bolt 2 of described backing plate 1 upper surface and are arranged on described backing plate 1 upper surface, described exhaust main sealing block comprises: Connection Block, total interface tube 10, draft tube 9 and cylinder 7, described Connection Block comprises web 8, two blocks of wing plates 5 and two bayonet mounts 4, one end of two blocks of described wing plates 5 is fixedly connected on respectively an end of web 8, the other end of two blocks of described wing plates 5 is fixedly connected with an end of a bayonet mount 4 respectively, described cylinder 7 cylinder bodies are fixedly connected on the central authorities of web 8, the piston rod end of described cylinder 7 is fixedly connected with total interface tube 10 1 ends, the other end of described total interface tube 10 is provided with cavity, also be provided with the runner that two ends communicate with outer wall and cavity respectively in total interface tube 10, described draft tube 9 is fixedly connected on total interface tube 10 places, runner hole, and with runner, communicate.
the tight fixed bolt 2 that arranges is used for being used in conjunction with exhaust manifold upper cylinder web joint coupling bolt through hole, cylinder web joint and cylinder web joint sealing block are fixed together, and the sealing gasket 3 of setting is conducive to the sealing property of cylinder web joint and cylinder web joint sealing block joint face, with the side contacts of exhaust manifold house steward joint flange away from end face and the bayonet mount 4 close webs 8 of exhaust manifold outlet, pass into pressurized air this moment in cylinder 7, piston rod drives total interface tube 10 and exports motion to the exhaust manifold house steward, final cylinder 7 is applied to acting force on web 8 and exhaust main interface and realizes exhaust main sealing block and the locking of exhaust manifold and total docking of interface tube 10 and exhaust main, pass into pressurized air by draft tube 9 this moment in exhaust manifold, again the connector of the present invention and exhaust manifold is put into water, whether observe has bubble to emerge, whether the exhaust manifold impermeability that just can well react in inspection is good.
Embodiment 2:
The present embodiment is further improved on the basis of embodiment 1,, as Fig. 1, also comprise O-ring seal 11, and described O-ring seal 11 is arranged on total interface tube 10 and is provided with on the end face of cavity end.
The material of described sealing gasket 3 and O-ring seal 11 is rubber.
Also comprise pressure release bolt 6, also be provided with the pressure release bolt internal thread hole supporting with pressure release bolt 6 screw threads on described total interface tube 10, described pressure release bolt internal thread hole communicates with described runner, and described pressure release bolt 6 becomes to be threaded with pressure release bolt internal thread hole.
The screw thread of the screw thread on described pressure release bolt 6 and pressure release bolt internal thread hole is pipe thread.
Described cylinder 7 is the single-cylinder single-acting cylinder.
The O-ring seal 11 that arranges is conducive to guarantee the excellent sealing of joint face between total interface tube 10 and exhaust main.
After the exhaust manifold airtight test is completed, due to the pressure in exhaust manifold higher than external atmosphere pressure, operating personnel directly dismantle exhaust main sealing block or cylinder web joint sealing block, suddenly the pressurized air that overflows may will blow to operating personnel as iron filings, welding slag or other impurity, affect operating personnel's job safety, the pressure release bolt 6 that absent-mindedness or dismounting arrange after detection is completed, fixed point unload the pressurized air in rafting gas manifold, are conducive to safety in production.
Pipe thread has better sealing property than STRTHD, is arranged to pipe thread and is conducive to more easily accomplish that leaking does not appear in pressure release bolt 6 places in testing process.
Because the pressure that the exhaust manifold airtight test uses is little, and rubber has elasticity preferably, adopts quality of rubber materials as encapsulant, can obtain good sealing effectiveness under less snap-in force.
To cylinder 7 air feed the time, cylinder 7 piston rod Shens go out, and produce the power that is fixed and clamped, during to cylinder 7 exhaust, piston resilience under the effect of spring, piston rod retraction, total interface tube 10 removes with the interaction force of exhaust manifold, namely adopts the cylinder simple, that cost is low to complete required function.

Claims (6)

1. the exhaust manifold impermeability detects and uses device, it is characterized in that, comprise cylinder web joint sealing block and exhaust main sealing block, described cylinder web joint sealing block comprises: backing plate (1), at least two sealing gaskets (3) that are fixedly connected on the tight fixed bolt (2) of described backing plate (1) upper surface and are arranged on described backing plate (1) upper surface, described exhaust main sealing block comprises: Connection Block, total interface tube (10), draft tube (9) and cylinder (7), described Connection Block comprises web (8), two blocks of wing plates (5) and two bayonet mounts (4), one end of two blocks of described wing plates (5) is fixedly connected on respectively an end of web (8), the other end of two blocks of described wing plates (5) is fixedly connected with an end of a bayonet mount (4) respectively, described cylinder (7) cylinder body is fixedly connected on the central authorities of web (8), the piston rod end of described cylinder (7) is fixedly connected with total interface tube (10) one ends, the other end of described total interface tube (10) is provided with cavity, also be provided with the runner that two ends communicate with outer wall and cavity respectively in total interface tube (10), described draft tube (9) is fixedly connected on place, total interface tube (10) runner hole, and with runner, communicate.
2. exhaust manifold impermeability according to claim 1 detects and uses device, it is characterized in that, also comprise O-ring seal (11), described O-ring seal (11) is arranged on total interface tube (10) and is provided with on the end face of cavity end.
3. exhaust manifold impermeability according to claim 2 detects and uses device, it is characterized in that, the material of described sealing gasket (3) and O-ring seal (11) is rubber.
4. exhaust manifold impermeability according to claim 1 detects and uses device, it is characterized in that, also comprise pressure release bolt (6), also be provided with the pressure release bolt internal thread hole supporting with pressure release bolt (6) screw thread on described total interface tube (10), described pressure release bolt internal thread hole communicates with described runner, and described pressure release bolt (6) becomes to be threaded with pressure release bolt internal thread hole.
5. exhaust manifold impermeability according to claim 4 detects and uses device, it is characterized in that, the screw thread of the screw thread on described pressure release bolt (6) and pressure release bolt internal thread hole is pipe thread.
6. according to claim 1 to 5, any one described exhaust manifold impermeability detects and uses device, it is characterized in that, described cylinder (7) is the single-cylinder single-acting cylinder.
CN2013103165393A 2013-07-26 2013-07-26 Detection device for exhaust manifold pipe air tightness CN103398824A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107607271A (en) * 2017-11-08 2018-01-19 广西南宁桂尔创环保科技有限公司 A kind of equipment and application method that can flexibly detect exhaust manifold air-tightness
CN109238572A (en) * 2018-11-12 2019-01-18 北京星航机电装备有限公司 Coldplate weld joint air-tight detection device
CN110231125A (en) * 2019-06-21 2019-09-13 浙江博弈科技股份有限公司 A kind of air compression type inlet manifold leakage detection apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070157714A1 (en) * 2006-01-10 2007-07-12 Honda Motor Co., Ltd. Engine oil leak test system and method
CN201464127U (en) * 2009-06-15 2010-05-12 河南省西峡汽车水泵股份有限公司 Exhaust manifold leakage test device
CN202171522U (en) * 2011-08-01 2012-03-21 无锡市众博换热器有限公司 Heat exchanger leak detection device
CN202793699U (en) * 2012-07-18 2013-03-13 福州诺贝尔福基机电有限公司 Air tightness detection device for fuel pipe union
CN203083783U (en) * 2012-12-21 2013-07-24 漳州恒昌机械制造有限公司 Water tightness detection apparatus for pump casing of automobile water pump
CN203362290U (en) * 2013-07-26 2013-12-25 成都陵川特种工业有限责任公司 Device for checking air tightness of exhaust manifold

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070157714A1 (en) * 2006-01-10 2007-07-12 Honda Motor Co., Ltd. Engine oil leak test system and method
CN201464127U (en) * 2009-06-15 2010-05-12 河南省西峡汽车水泵股份有限公司 Exhaust manifold leakage test device
CN202171522U (en) * 2011-08-01 2012-03-21 无锡市众博换热器有限公司 Heat exchanger leak detection device
CN202793699U (en) * 2012-07-18 2013-03-13 福州诺贝尔福基机电有限公司 Air tightness detection device for fuel pipe union
CN203083783U (en) * 2012-12-21 2013-07-24 漳州恒昌机械制造有限公司 Water tightness detection apparatus for pump casing of automobile water pump
CN203362290U (en) * 2013-07-26 2013-12-25 成都陵川特种工业有限责任公司 Device for checking air tightness of exhaust manifold

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107607271A (en) * 2017-11-08 2018-01-19 广西南宁桂尔创环保科技有限公司 A kind of equipment and application method that can flexibly detect exhaust manifold air-tightness
CN107607271B (en) * 2017-11-08 2019-05-17 英诺太科测试设备(太仓)有限公司 A kind of equipment and application method that can flexibly detect exhaust manifold air-tightness
CN109238572A (en) * 2018-11-12 2019-01-18 北京星航机电装备有限公司 Coldplate weld joint air-tight detection device
CN110231125A (en) * 2019-06-21 2019-09-13 浙江博弈科技股份有限公司 A kind of air compression type inlet manifold leakage detection apparatus

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Application publication date: 20131120

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