CN104568297A - Tool for testing gas pressure in crankcase - Google Patents
Tool for testing gas pressure in crankcase Download PDFInfo
- Publication number
- CN104568297A CN104568297A CN201410767824.1A CN201410767824A CN104568297A CN 104568297 A CN104568297 A CN 104568297A CN 201410767824 A CN201410767824 A CN 201410767824A CN 104568297 A CN104568297 A CN 104568297A
- Authority
- CN
- China
- Prior art keywords
- conduit
- conduits
- oil
- hose
- bent axle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 22
- 238000005516 engineering process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A tool for testing gas pressure in a crankcase comprises a bottom oil plug, a first conduit, a second conduit, a torsional spring and a testing hose, wherein the bottom oil plug is provided with a central through hole; the first conduit and the second conduit are movably riveted; the two conduits form an included angle of 90 degrees in a natural state; the first conduit penetrates through the central through hole of the bottom oil plug; a sealing sleeve A is arranged between the first conduit and the central through hole; an aligning mark is arranged on the surface at the end, far from the end connected with the second conduit, of the first conduit; second conduit extends into an oil sump vertically and upwardly; the torsional spring is arranged at a position where the two conduits are movably riveted; the two ends of the torsional spring are fixedly connected with the inner side walls of the two conduits respectively; the testing hose is inserted into the inner cavities of the two conduits; one end of the testing hose extends to the upper end part of the second conduit, and the other end of the testing hose is connected with an external pressure sensor; a sealing sleeve B is arranged between the inner walls of the ends, at which the mark is arranged, of the testing hose and the first conduit. Through the two conduits which are movably riveted, a passage is formed for the testing hose, and through the passage, the testing hose can be conveniently introduced into the crankcase, so that a test on the pressure in the crankcase is achieved.
Description
Technical field
The invention belongs to engine manufacturing technology field, particularly a kind of bent axle loading pressure test fixture.
Background technology
Crankcase is a key component on engine, sometimes because engine performance is developed and require in the proof procedure of reliability to need to measure bent axle loading pressure.The mode of existing test pressure is that gas blowby pipe place is measured under cylinder cap crankcase, but due to poorly sealed herein and in crankcase gas after air flue, produce pressure drop, cause measure inaccurate.Therefore, in order to obtain the exact value of bent axle loading pressure, pressure point needs the inside being arranged on crankcase, like this on the basis of existing crankcase structure, designs a kind of test fixture that can be deep in crankcase very necessary.
Summary of the invention
The present invention provides a kind of structure simple, easy to operate for solving in known technology the technical matters that exists, can the bent axle loading pressure test fixture of Measurement accuracy crankcase internal pressure.
The technical scheme that the present invention takes for the technical matters existed in solution known technology is:
Bent axle loading pressure test fixture, is characterized in that: comprise the oily end being arranged on oil sump oil-out position stifled, and the described oil end blocks and is provided with through hole; Comprise the first conduit and the second conduit be made up of metal material, one end of the first conduit and one end activity riveted joint of the second conduit, two conduits are 90 ° of angles under natural shape body; First conduit passes from the through hole that the oil end is stifled, is provided with sealing shroud A between, the outside surface of the first conduit away from the one end with the second tubes connection is provided with centering and marks; Described second conduit extend in oil sump vertically upward; Comprise torsion spring, described torsion spring is arranged on the activity riveted joint position of the first conduit and the second conduit, and the two ends of torsion spring are fixedly connected with the madial wall of two conduits respectively; Comprise test hose, described test hose is installed in the inner chamber of two conduits, its one end extends to the upper-end part of driving of the second conduit, one end that the other end of test hose arranges mark from the first conduit is stretched out, and be connected with the pressure transducer of outside, arrange in test hose and the first conduit between the inwall marking one end and be provided with sealing shroud B.
The technical scheme that the present invention can also adopt is:
Described second conduit is in charge of by multistage and is connected and composed successively by threaded coaxial.
The two ends of described torsion spring are fixedly connected with by the mode of welding with the inwall of two conduits respectively.
Described first conduit and the second conduit are stainless-steel tube.
Described sealing shroud A and sealing shroud B is silica gel sealing cover.
The advantage that the present invention has and good effect are:
Test hose, by the conduit of two movable riveted joints, for the test hose connecting external pressure sensor has built a passage, can be incorporated in crankcase by this passage, realize the test of crankcase pressure by this test fixture easily.This test fixture has used the oil-out position of oil sump cleverly, frock is introduced from this position, therefore, except being made except empty set structure by stifled for the existing oil end, to the main body of oil sump without any changes.This test fixture is by being connected the outer end of test hose with outside pressure transducer, and just can facilitate the pressure measuring crankcase inside accurately, have easy to operate advantage, in addition, its structure is also fairly simple.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, the oil end is blocked up; 2, the first conduit; 3, the second conduit; 4, sealing shroud A; 5, centering mark; 6, torsion spring; 7, test hose; 8, sealing shroud B.
Embodiment
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of bent axle loading pressure test fixture, is made up of following a few part:
Comprise the oily end stifled 1 being arranged on oil sump oil-out position, the described oil end, blocks and is provided with through hole.Block up by the existing oil end and be set to sleeve-like structure, the oil-out of its outside surface and oil sump is still threaded connection.
Comprise the first conduit 2 and the second conduit 3 be made up of metal material.One end of first conduit and one end activity riveted joint of the second conduit, two conduits are 90 ° of angles under natural shape body.Concrete, the sidewall that two conduits are corresponding is provided with two coaxial movable riveting points, and two conduits need guarantee two conduit to relatively rotate from 90 ° of angular position in the shape of riveted joint end to be positioned at coaxial position.Above-mentioned first conduit passes from the center line through hole that the oil end is stifled, is provided with sealing shroud A4 between.The surface of the first conduit away from the one end with the second tubes connection is provided with centering and marks 5, specifically, centering mark can adopt the mark line be located in the first catheter outer surface to represent, also can represent by the laminar projection be located on the outside surface of the first conduit.Above-mentioned second conduit extend into oil sump inside vertically upward.The direction indication of above-mentioned centering mark is consistent with the direction of the second conduit under natural shape body, like this, after the second conduit and the first conduit penetrate into oil sump from the oil-in of oil sump successively, by adjusting the first conduit, making centering mark the position being positioned at the top, just can ensure that the second conduit enters into after in oil sump, under the effect of torsion spring, turn to the position in vertical stand-up, like this, just ensure that the accuracy of pressure test.
Comprise torsion spring 6.Described torsion spring is arranged on the activity riveted joint position of the first conduit and the second conduit, and the two ends of torsion spring are fixedly connected with the madial wall of two conduits respectively.Concrete, torsion spring is arranged on the position near inwall in the inner chamber of two conduits.
Comprise test hose 7.Described test hose is installed in the inner chamber of two conduits, and its one end extends to the upper-end part of driving of the second conduit, and one end that the other end of test hose arranges mark from the first conduit is stretched out, and is connected with the pressure transducer of outside.Pressure transducer is not shown out in the accompanying drawings.Arrange in test hose and the first conduit between the inwall marking one end and be provided with sealing shroud B8.
In said structure, described second conduit is in charge of by multistage and is is coaxially connected and composed successively by screw thread.Second conduit adopts the structure of connection segment, can arrange flexibly, ensure that the upper surface of the second conduit is positioned at the top of machine oil liquid level all the time according to the height of crankcase inner engine oil liquid level.
In said structure, the two ends of described torsion spring preferably adopt the mode of welding to be fixed with the inwall of two conduits to be connected.Described first conduit and the second conduit preferably adopt stainless-steel tube.Described sealing shroud A and sealing shroud B preferably adopts silica gel sealing cover.
The operation instruction of this frock:
1, first test hose is penetrated in two conduits, and in test hose, be set with upper sleeve gasket B, test hose and the first conduit are formed near the position of outer end and seals;
2, at the first conduit after the position suit upper sleeve gasket A of end, the position being sleeved on and the first conduit being arranged sealing shroud A is blocked up at the oil end, make the first conduit and the oil end stifled between formed to seal and contact, when centering is labeled as above-mentioned outer lug structure, finally also need centering mark to be fixed on the outside surface of the first conduit;
3, from the oil-out position of oil sump, the second conduit and the first conduit are successively inserted into after in crankcase, are tightened in stifled at the bottom of oil on oil-out.In the process inserted, when the movable caulking part position of two conduits moves to oil-out position, pressing the first conduit, makes the first conduit rotate 90 ° relative to the second conduit downwards, such two guide rails are positioned on same axis, just the fore-end of the first conduit can be inserted in crankcase smoothly.After the second conduit enters into crankcase, under the effect of torsion spring, the second conduit upwards rotates 90 ° relative to the first conduit, realizes automatically reseting.When tighten the oil end stifled after, along the circumferential direction adjust the first conduit, the centering on it marked and is positioned at position topmost, so just can guarantee that the second conduit is in position vertically upward.
4, finally one end that detection flexible pipe is positioned at outside the first conduit is connected with outside pressure transducer.After completing above-mentioned work, just by pressure transducer, the pressure in crankcase is tested.
Claims (5)
1. bent axle loading pressure test fixture, is characterized in that: comprise the oily end being arranged on oil sump oil-out position stifled, and the described oil end blocks and is provided with through hole; Comprise the first conduit and the second conduit be made up of metal material, one end of the first conduit and one end activity riveted joint of the second conduit, two conduits are 90 ° of angles under natural shape body; First conduit passes from the through hole that the oil end is stifled, is provided with sealing shroud A between, the outside surface of the first conduit away from the one end with the second tubes connection is provided with centering and marks; Described second conduit extend in oil sump vertically upward; Comprise torsion spring, described torsion spring is arranged on the activity riveted joint position of the first conduit and the second conduit, and the two ends of torsion spring are fixedly connected with the madial wall of two conduits respectively; Comprise test hose, described test hose is installed in the inner chamber of two conduits, its one end extends to the upper-end part of driving of the second conduit, one end that the other end of test hose arranges mark from the first conduit is stretched out, and be connected with the pressure transducer of outside, arrange in test hose and the first conduit between the inwall marking one end and be provided with sealing shroud B.
2. bent axle loading pressure test fixture according to claim 1, is characterized in that: described second conduit is in charge of by multistage and is connected and composed successively by threaded coaxial.
3. bent axle loading pressure test fixture according to claim 1, is characterized in that: the two ends of described torsion spring are fixedly connected with by the mode of welding with the inwall of two conduits respectively.
4. bent axle loading pressure test fixture according to claim 1, is characterized in that: described first conduit and the second conduit are stainless-steel tube.
5. bent axle loading pressure test fixture according to claim 1, is characterized in that: described sealing shroud A and sealing shroud B is silica gel sealing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767824.1A CN104568297B (en) | 2014-12-12 | 2014-12-12 | Bent axle loading pressure test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767824.1A CN104568297B (en) | 2014-12-12 | 2014-12-12 | Bent axle loading pressure test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104568297A true CN104568297A (en) | 2015-04-29 |
| CN104568297B CN104568297B (en) | 2017-03-29 |
Family
ID=53084881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410767824.1A Expired - Fee Related CN104568297B (en) | 2014-12-12 | 2014-12-12 | Bent axle loading pressure test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104568297B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296839A (en) * | 2019-08-13 | 2019-10-01 | 中国工程物理研究院机械制造工艺研究所 | Gas film pressure test device and test method for gas bearing |
| CN111537232A (en) * | 2020-06-22 | 2020-08-14 | 浙江吉利新能源商用车集团有限公司 | Method and system for detecting faults of methanol engine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539163Y (en) * | 2002-04-15 | 2003-03-05 | 中国石化胜利油田有限公司采油工艺研究院 | Pressure testing pressure transmission cylinder for gas well |
| CN2757107Y (en) * | 2004-12-03 | 2006-02-08 | 浙江天信仪表有限公司 | High temperature gas pressure taking device |
| US20070084291A1 (en) * | 2005-09-30 | 2007-04-19 | Thomas Moelkner | Method for detecting a pressure of a medium and pressure measuring device |
| CN202041343U (en) * | 2011-01-07 | 2011-11-16 | 北京精英智通交通系统科技有限公司 | Pneumatic sensing rubber pipe |
| US20120118069A1 (en) * | 2003-01-09 | 2012-05-17 | Kulite Semiconductor Products, Inc. | Pressure transducer assembly having an integral back-up ring |
| CN203798490U (en) * | 2014-04-08 | 2014-08-27 | 抚顺新钢铁有限责任公司 | Special-purpose tool for dredge of pressure measuring point of gas pipeline instrument |
| CN204359484U (en) * | 2014-12-12 | 2015-05-27 | 天津雷沃动力有限公司 | Bent axle loading pressure test fixture |
-
2014
- 2014-12-12 CN CN201410767824.1A patent/CN104568297B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539163Y (en) * | 2002-04-15 | 2003-03-05 | 中国石化胜利油田有限公司采油工艺研究院 | Pressure testing pressure transmission cylinder for gas well |
| US20120118069A1 (en) * | 2003-01-09 | 2012-05-17 | Kulite Semiconductor Products, Inc. | Pressure transducer assembly having an integral back-up ring |
| CN2757107Y (en) * | 2004-12-03 | 2006-02-08 | 浙江天信仪表有限公司 | High temperature gas pressure taking device |
| US20070084291A1 (en) * | 2005-09-30 | 2007-04-19 | Thomas Moelkner | Method for detecting a pressure of a medium and pressure measuring device |
| CN202041343U (en) * | 2011-01-07 | 2011-11-16 | 北京精英智通交通系统科技有限公司 | Pneumatic sensing rubber pipe |
| CN203798490U (en) * | 2014-04-08 | 2014-08-27 | 抚顺新钢铁有限责任公司 | Special-purpose tool for dredge of pressure measuring point of gas pipeline instrument |
| CN204359484U (en) * | 2014-12-12 | 2015-05-27 | 天津雷沃动力有限公司 | Bent axle loading pressure test fixture |
Non-Patent Citations (1)
| Title |
|---|
| 张成: "柴油机曲轴箱压力智能监测装置的研制", 《内燃机车》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110296839A (en) * | 2019-08-13 | 2019-10-01 | 中国工程物理研究院机械制造工艺研究所 | Gas film pressure test device and test method for gas bearing |
| CN110296839B (en) * | 2019-08-13 | 2024-02-06 | 中国工程物理研究院机械制造工艺研究所 | Air film pressure testing device and testing method for gas bearing |
| CN111537232A (en) * | 2020-06-22 | 2020-08-14 | 浙江吉利新能源商用车集团有限公司 | Method and system for detecting faults of methanol engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104568297B (en) | 2017-03-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 |