CN103398825A - Detection mechanism for exhaust manifold pipe air tightness - Google Patents
Detection mechanism for exhaust manifold pipe air tightness Download PDFInfo
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- CN103398825A CN103398825A CN2013103165798A CN201310316579A CN103398825A CN 103398825 A CN103398825 A CN 103398825A CN 2013103165798 A CN2013103165798 A CN 2013103165798A CN 201310316579 A CN201310316579 A CN 201310316579A CN 103398825 A CN103398825 A CN 103398825A
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- exhaust manifold
- tooth seat
- fixedly connected
- pressure release
- air tightness
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Abstract
The invention discloses a detection mechanism for exhaust manifold pipe air tightness. The detection mechanism 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 (4) for connecting an exhaust manifold pipe and an exhaust main pipe flange, a hollow main pipe joint (5), a lower tooth seat (6) which is provided with an internal threaded hole at one end and internally provided with a flow passage, an upper tooth seat (8) provided with an internal threaded through hole, a threaded rod (9), an air inlet pipe (10) and a sealing ring (11). The detection mechanism is simple in structure, safe and convenient to operate and obvious in detection result, and the exhaust manifold pipe air tightness can be quickly and conveniently detected after the exhaust manifold pipe to be detected is connected to the detection mechanism.
Description
Technical field
The present invention relates to exhaust manifold inspection machine field, particularly relate to a kind of exhaust manifold air tightness detection machine structure.
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 completes, before dispatching from the factory, all need to detect through impermeability, 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, after certain hour, observe exhaust manifold pressure 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 to 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, to operating personnel, have the radiation injury risk and use aerostatic press to have long problem proving time, the invention provides a kind of exhaust manifold air tightness detection machine structure.
for achieving the above object, exhaust manifold air tightness detection machine structure provided by the invention solves problem by following technical essential: exhaust manifold air tightness detection machine structure, 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: be used to connecting the Connection Block of exhaust manifold exhaust main flange, total interface tube of hollow, one end is provided with internal thread hole and the inner lower tooth seat that is provided with runner, be provided with the upper tooth seat of internal thread through hole, threaded rod, draft tube and O-ring seal, described upper tooth seat is fixedly connected with Connection Block, described threaded rod becomes threaded engagement with the upper tooth seat, described lower tooth seat becomes threaded engagement with threaded rod, the other end of lower tooth seat is fixedly connected with an end of total interface tube, described draft tube is fixedly connected with lower tooth seat, and draft tube communicates with total interface tube hollow space by the runner that is arranged on lower tooth seat inside, described O-ring seal is arranged on the other end of total interface tube.
the tight fixed bolt that arranges is 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, by Connection Block with after the exhaust main joint flange is fixedly connected with, by rotating threaded rod, total interface tube is contacted with exhaust manifold house steward connector, interaction force between upper tooth seat and threaded rod is larger, interaction force between total interface tube and the total interface tube of exhaust manifold is also larger, while fitted seal circle, make the total interface tube of total interface tube and exhaust manifold have good sealing effectiveness, pass into pressurized air by draft tube this moment in exhaust manifold, to fix again this connector and put into water, whether observe has bubble to emerge, just well whether the exhaust manifold impermeability in reaction detection is good.
Preferably, described Connection Block comprises web, two blocks of wing plates and two journal stirrups, one end of two blocks of described wing plates is fixedly connected with respectively an end of web, the other end of two blocks of described wing plates is fixedly connected with a journal stirrup respectively, on described journal stirrup, be equipped with the U-shaped hole, described upper tooth seat is fixedly connected on the central authorities of web, and also is provided with the through hole that passes web for threaded rod on web.
The U-shaped hole that arranges is used in conjunction with the coupling bolt hole that forms Connection Block and exhaust manifold for the exhaust manifold house steward joint flange bolt hole with check, adopt the U-shaped well format, make the coupling bolt of use between the diverse location of U-shaped hole, to slide, be convenient to being connected of Connection Block and exhaust manifold house steward joint flange; This structure is formed by connecting by several sheet materials, and is simple in structure, is convenient to processing and fabricating.
Preferably, also comprise the pressure release bolt, on described lower tooth seat, also be provided with the pressure release bolt internal thread hole supporting with the pressure release bolt thread, 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 completes, 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 completes, 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 under less snap-in force, obtain good sealing effectiveness.
Preferably, described threaded rod is with respect on the other end that connects the lower tooth seat end, also being fixedly connected with handle.
The handle that arranges is used to the rotation threaded rod that the arm of force is provided, and is convenient to rotate threaded rod.
Further, the screw thread on described threaded rod, lower tooth seat and upper tooth seat is fine thread.
The self-locking property that fine thread has, while between threaded rod and upper tooth seat, threaded rod and lower tooth seat, producing interaction force, fine thread has better anti-loose ability than STRTHD, is conducive to guarantee the sealing property of exhaust main sealing block and exhaust manifold joint face.
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, only need by the cylinder web joint of cylinder web joint sealing block and exhaust manifold, by the exhaust main sealing block with after exhaust manifold house steward joint flange is fixedly connected with, pass into pressurized air, whole connector is inserted to the exhaust manifold impermeability that just can differentiate clearly in detection in water whether good, have now and utilize defect-detecting equipment and aerostatic press, have advantages of that simple to operate, result reflects obviously and checks that elapsed time is short.
The accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of exhaust manifold air tightness detection machine structure of the present invention.
Figure acceptance of the bid note is respectively: 1, lower bolster, 2, tight fixed bolt, 3, sealing gasket, 4, Connection Block, 41, web, 42, wing plate, 43, journal stirrup, 5, total interface tube, 6, lower tooth seat, 61, the pressure release bolt, 7, handle, 8, the upper tooth seat, 9, threaded rod, 10, draft 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, exhaust manifold air tightness detection machine structure, 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: be used to connecting the Connection Block 4 of exhaust manifold exhaust main flange, total interface tube 5 of hollow, one end is provided with internal thread hole and the inner lower tooth seat 6 that is provided with runner, be provided with the upper tooth seat 8 of internal thread through hole, threaded rod 9, draft tube 10 and O-ring seal 11, described upper tooth seat 8 is fixedly connected with Connection Block 4, 8 one-tenth threaded engagement of described threaded rod 9 and upper tooth seat, 9 one-tenth threaded engagement of described lower tooth seat 6 and threaded rod, the other end of lower tooth seat 6 is fixedly connected with an end of total interface tube 5, described draft tube 10 is fixedly connected with lower tooth seat 6, and draft tube 10 communicates with total interface tube 5 hollow spaces by the runner that is arranged on lower tooth seat 6 inside, described O-ring seal 11 is arranged on the other end of total interface tube 5.
the tight fixed bolt 2 that arranges is 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, by Connection Block 4 with after the exhaust main joint flange is fixedly connected with, by rotating threaded rod 9, total interface tube 5 is contacted with exhaust manifold house steward connector, interaction force between upper tooth seat 8 and threaded rod 9 is larger, interaction force between total interface tube 5 and the total interface tube of exhaust manifold is also larger, while fitted seal circle, make total interface tube 5 and the total interface tube of exhaust manifold have good sealing effectiveness, pass into pressurized air by draft tube 10 this moment in exhaust manifold, to fix again this connector and put into water, whether observe has bubble to emerge, just well whether the exhaust manifold impermeability in reaction detection is good.
Embodiment 2:
The present embodiment is further improved on the basis of embodiment 1, as Fig. 1, described Connection Block 4 comprises web 41, two wing plates 42 and two journal stirrups 43, one end of two blocks of described wing plates 42 is fixedly connected with respectively an end of web 41, the other end of two blocks of described wing plates 42 is fixedly connected with a journal stirrup 43 respectively, on described journal stirrup 43, be equipped with the U-shaped hole, described upper tooth seat 8 is fixedly connected on the central authorities of web 41, and also is provided with the through hole that passes web 41 for threaded rod 9 on web 41.
Also comprise pressure release bolt 61, on described lower tooth seat, also be provided with the pressure release bolt internal thread hole supporting with pressure release bolt 61 screw threads, described pressure release bolt internal thread hole communicates with described runner, and described pressure release bolt 61 becomes to be threaded with pressure release bolt internal thread hole.
The screw thread of the screw thread on described pressure release bolt 61 and pressure release bolt internal thread hole is pipe thread.
The material of described sealing gasket 3 and O-ring seal 11 is rubber.
Described threaded rod 9 is with respect on the other end that connects lower tooth seat 6 ends, also being fixedly connected with handle 7.
Screw thread on described threaded rod 9, lower tooth seat 6 and upper tooth seat 8 is fine thread.
The U-shaped hole that arranges is used in conjunction with the coupling bolt hole that forms Connection Block and exhaust manifold for the exhaust manifold house steward joint flange bolt hole with check, adopt the U-shaped well format, make the coupling bolt of use between the diverse location of U-shaped hole, to slide, be convenient to being connected of Connection Block 4 and exhaust manifold house steward joint flange; This structure is formed by connecting by several sheet materials, and is simple in structure, is convenient to processing and fabricating.
After the exhaust manifold airtight test completes, 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 61 that absent-mindedness or dismounting arrange after detection completes, 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 61 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 under less snap-in force, obtain good sealing effectiveness.
The handle 7 that arranges is used to rotation threaded rod 9 that the arm of force is provided, and is convenient to rotate threaded rod 9.
The self-locking property that fine thread has, while between threaded rod 9 and upper tooth seat 8, threaded rod 9 and lower tooth seat 6, producing interaction force, fine thread has better anti-loose ability than STRTHD, is conducive to guarantee the sealing property of exhaust main sealing block and exhaust manifold joint face.
Claims (7)
1. exhaust manifold air tightness detection machine structure, 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: be used to the Connection Block (4) that connects exhaust manifold exhaust main flange, total interface tube (5) of hollow, one end is provided with internal thread hole and the inner lower tooth seat (6) that is provided with runner, be provided with the upper tooth seat (8) of internal thread through hole, threaded rod (9), draft tube (10) and O-ring seal (11), described upper tooth seat (8) is fixedly connected with Connection Block (4), described threaded rod (9) becomes threaded engagement with upper tooth seat (8), described lower tooth seat (6) becomes threaded engagement with threaded rod (9), the other end of lower tooth seat (6) is fixedly connected with an end of total interface tube (5), described draft tube (10) is fixedly connected with lower tooth seat (6), and draft tube (10) communicates with total interface tube (5) hollow space by being arranged on the inner runner of lower tooth seat (6), described O-ring seal (11) is arranged on the other end of total interface tube (5).
2. exhaust manifold air tightness detection machine structure according to claim 1, it is characterized in that, described Connection Block (4) comprises web (41), two blocks of wing plates (42) and two journal stirrups (43), one end of two blocks of described wing plates (42) is fixedly connected with respectively an end of web (41), the other end of two blocks of described wing plates (42) is fixedly connected with a journal stirrup (43) respectively, described journal stirrup is equipped with the U-shaped hole on (43), described upper tooth seat (8) is fixedly connected on the central authorities of web (41), and on web (41), also be provided with the through hole that passes web (41) for threaded rod (9).
3. exhaust manifold air tightness detection machine structure according to claim 1, it is characterized in that, also comprise pressure release bolt (61), on described lower tooth seat, also be provided with the pressure release bolt internal thread hole supporting with pressure release bolt (61) screw thread, described pressure release bolt internal thread hole communicates with described runner, and described pressure release bolt (61) becomes to be threaded with pressure release bolt internal thread hole.
4. exhaust manifold air tightness detection machine structure according to claim 3, is characterized in that, the screw thread of the screw thread on described pressure release bolt (61) and pressure release bolt internal thread hole is pipe thread.
5. exhaust manifold air tightness detection machine structure according to claim 1, is characterized in that, the material of described sealing gasket (3) and O-ring seal (11) is rubber.
6. exhaust manifold air tightness detection machine structure according to claim 1, is characterized in that, described threaded rod (9) is with respect on the other end that connects lower tooth seat (6) end, also being fixedly connected with handle (7).
7. any one described exhaust manifold air tightness detection machine structure according to claim 1 to 6, is characterized in that, the screw thread on described threaded rod (9), lower tooth seat (6) and upper tooth seat (8) is fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103165798A CN103398825A (en) | 2013-07-26 | 2013-07-26 | Detection mechanism for exhaust manifold pipe air tightness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103165798A CN103398825A (en) | 2013-07-26 | 2013-07-26 | Detection mechanism for exhaust manifold pipe air tightness |
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| CN103398825A true CN103398825A (en) | 2013-11-20 |
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| CN2013103165798A Pending CN103398825A (en) | 2013-07-26 | 2013-07-26 | Detection mechanism for exhaust manifold pipe air tightness |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934486A (en) * | 2014-04-28 | 2014-07-23 | 成都陵川特种工业有限责任公司 | Positioning and drilling device for exhaust manifold flange |
| CN104019949B (en) * | 2014-05-24 | 2017-05-10 | 广西玉柴机器股份有限公司 | Side leakage device for air inlet pipe |
| CN109084941A (en) * | 2018-07-12 | 2018-12-25 | 广东井得电机有限公司 | A kind of starter leakage detection apparatus |
| 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 |
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| CN203337341U (en) * | 2013-07-26 | 2013-12-11 | 成都陵川特种工业有限责任公司 | Connection tube sealing mechanism detecting exhaust manifold air tightness |
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2013
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Patent Citations (6)
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| 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 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103934486A (en) * | 2014-04-28 | 2014-07-23 | 成都陵川特种工业有限责任公司 | Positioning and drilling device for exhaust manifold flange |
| CN103934486B (en) * | 2014-04-28 | 2016-04-13 | 成都陵川特种工业有限责任公司 | A kind of location drilling device for air discharging manifold flange |
| CN104019949B (en) * | 2014-05-24 | 2017-05-10 | 广西玉柴机器股份有限公司 | Side leakage device for air inlet pipe |
| CN109084941A (en) * | 2018-07-12 | 2018-12-25 | 广东井得电机有限公司 | A kind of starter leakage detection apparatus |
| 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 |
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Application publication date: 20131120 |