CN103759945A - Machine body inversion fatigue test device - Google Patents
Machine body inversion fatigue test device Download PDFInfo
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- CN103759945A CN103759945A CN201310673236.7A CN201310673236A CN103759945A CN 103759945 A CN103759945 A CN 103759945A CN 201310673236 A CN201310673236 A CN 201310673236A CN 103759945 A CN103759945 A CN 103759945A
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Abstract
The invention relates to a machine body inversion fatigue test device. The machine body inversion fatigue test device comprises a through-connection disk (1), a non-standard connecting rod (2), a non-standard straight shaft (3), a machine body (4), a non-standard cylinder cover (5) and a foundation base (6). The foundation base (6) is fastened to a testbed foundation plate through screws, and the non-standard cylinder cover (5) is fastened to the foundation base (6) through screws. The non-standard connecting rod (2) is fastened to the through-connection disk (1) through screws, and the through-connection disk (1) is fastened to vertical loading equipment through screws. The non-standard straight shaft (3) is installed in a main bearing hole of the machine body (4), and the non-standard connecting rod (2) is connected with the non-standard straight shaft (3) through screws. Through the machine body inversion fatigue test device, the test efficiency can be effectively improved, and the test period is shortened.
Description
Technical field
The invention belongs to engine body torture test field, be specifically related to a kind of body and be inverted fatigue experimental device.
Background technology
Along with engine flare pressure and power density improve constantly, the reliability of engine component is faced with harsh test, wherein as the reliability of the body of engine skeleton, be even more important, in the reseach of engine stage, not only need it to carry out computational analysis assessment, also need its reliability of checking guarantee of testing by object fatigue.
At present traditional organism fatigue test internal pressure test system loads that adopt more, nonstandard d-axis replaces bent axle, by hydraulic oil, simulates explosion pressure, by load applying at positions such as organism baffle and bearing caps.Conventional engines organism fatigue test unit, is comprised of nonstandard cylinder cap, body, head gasket, nonstandard piston, nonstandard connecting rod, nonstandard d-axis, O-ring seals etc.Nonstandard d-axis is arranged on the main bearing of body test cylinder (jar), and cylinder cap, head gasket, nonstandard piston, connecting rod etc. are arranged on tested body according to installation specification, between nonstandard top land and cylinder cap bottom surface, have formed test pressure chamber.During work, hydraulic oil enters test pressure chamber from pressure oil entrance P, the explosion pressure during with the work of hydraulic oil simulated engine, and load is delivered on body main bearing by connecting rod, thereby completes the load applying to body.The hydraulic oil in test pressure chamber is by head gasket and O-ring seals sealing, but this body is inverted the problem that fatigue experimental device exists: 1) when test pressure exceedes certain limit, the life-span of O-ring seal can significantly shorten, and cannot guarantee positiver sealing, can affect torture test and carry out smoothly.2) internal pressure test system is generally nonstandard customizing device, and test resource is less.
Summary of the invention
The present invention is exactly the sealing reliability problem of the O-ring seal in order to solve this test unit and improves the problems such as test resource is few, and provides a kind of body to be inverted fatigue experimental device.
The technical solution used in the present invention: a kind of body is inverted fatigue experimental device, it comprises transfer panel 1, nonstandard connecting rod 2, nonstandard d-axis 3, body 4, nonstandard cylinder cap 5, pedestal 6, ground pedestal 6 by screw fastening on testing table grade slab, nonstandard cylinder cap 5 by screw fastening on ground pedestal 6; Nonstandard connecting rod 2 by screw fastening on transfer panel 1, transfer panel 1 by screw fastening on vertical loading equipment; Nonstandard d-axis 3 is installed in the main bearing hole on body 4, and nonstandard connecting rod 2 is connected with nonstandard d-axis 3 by screw.
Beneficial effect of the present invention:
(1) avoid because top load causes O-ring seal Problem of Failure
The present invention's application vertical load system carries out body and is inverted torture test, test loading equipemtn is directly connected to imposed load on nonstandard d-axis 3 by nonstandard connecting rod 2, and principle of work is simple, consistent with universal test method effect, there is no sealing part, avoided seal failure problem;
(2) can utilize comparatively common testing equipment to test
The present invention's application vertical load system carries out organism fatigue test, can utilize vertical loading testing equipment common on market, as: high frequency loads the servo vertical loading testing machine of mechanical, electrical liquid; And the loading frequency of high frequency testing machine and electro-hydraulic servo vertical loading testing machine is higher, can effectively improve test efficiency, save the test period.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that body of the present invention is inverted the schematic diagram that in torture test, test load loads;
Fig. 3 is the structure diagram of traditional organism fatigue test.
Embodiment
As shown in Figure 1 and Figure 2, a kind of body is inverted fatigue experimental device, this device mainly comprises transfer panel 1, nonstandard connecting rod 2, nonstandard d-axis 3, body 4, nonstandard cylinder cap 5, the parts such as pedestal 6, ground pedestal 6 by screw fastening and testing table grade slab, nonstandard cylinder cap 5 by screw fastening on ground pedestal 6; Nonstandard connecting rod 2 is by screw fastening on transfer panel 1, and transfer panel 1 is by screw fastening and vertical loading equipment; Nonstandard d-axis 3 is installed on body 4 in main bearing hole, and Main bearing bolt is tightened by tightening standard; Nonstandard connecting rod 2 is connected with nonstandard d-axis 3 by screw, realizes and being connected with vertical load system.In the present invention, vertical load system is that high frequency adds carrier aircraft or electro-hydraulic servo vertical loading testing machine, and the loading frequency of high frequency testing machine and electro-hydraulic servo vertical loading testing machine is higher, can effectively improve test efficiency, saves the test period.
Claims (1)
1. a body is inverted fatigue experimental device, it comprises transfer panel (1), nonstandard connecting rod (2), nonstandard d-axis (3), body (4), nonstandard cylinder cap (5), pedestal (6), it is characterized in that: ground pedestal (6) by screw fastening on testing table grade slab, nonstandard cylinder cap (5) by screw fastening on ground pedestal (6); Nonstandard connecting rod (2) is upper in transfer panel (1) by screw fastening, transfer panel (1) by screw fastening on vertical loading equipment; Nonstandard d-axis (3) is arranged in the upper main bearing hole of body (4), and nonstandard connecting rod (2) is connected with nonstandard d-axis (3) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310673236.7A CN103759945A (en) | 2013-12-12 | 2013-12-12 | Machine body inversion fatigue test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310673236.7A CN103759945A (en) | 2013-12-12 | 2013-12-12 | Machine body inversion fatigue test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103759945A true CN103759945A (en) | 2014-04-30 |
Family
ID=50527220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310673236.7A Pending CN103759945A (en) | 2013-12-12 | 2013-12-12 | Machine body inversion fatigue test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103759945A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568409A (en) * | 2014-12-31 | 2015-04-29 | 中国北方发动机研究所(天津) | Engine body inversion single-partition-plate fatigue test device |
| CN110849600A (en) * | 2019-10-14 | 2020-02-28 | 中国北方发动机研究所(天津) | Device for carrying out piston pin hole thermal engine fatigue test by using high-frequency testing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319583Y (en) * | 1997-04-10 | 1999-05-19 | 苏介基 | One-stroke geared enjine |
| CN201107179Y (en) * | 2007-08-30 | 2008-08-27 | 无锡油泵油嘴研究所 | Fatigue-testing machine of engine cylinder |
| KR20090059908A (en) * | 2007-12-07 | 2009-06-11 | 현대자동차주식회사 | Pressure test apparatus for cylinder head gasket in vehicle engine |
| CN203037457U (en) * | 2013-01-28 | 2013-07-03 | 中国重汽集团济南动力有限公司 | Loading piston anti-attrition apparatus for engine cylinder body fatigue pulse test |
| CN203285488U (en) * | 2013-05-08 | 2013-11-13 | 黄明清 | Spiral straight shaft engine |
-
2013
- 2013-12-12 CN CN201310673236.7A patent/CN103759945A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319583Y (en) * | 1997-04-10 | 1999-05-19 | 苏介基 | One-stroke geared enjine |
| CN201107179Y (en) * | 2007-08-30 | 2008-08-27 | 无锡油泵油嘴研究所 | Fatigue-testing machine of engine cylinder |
| KR20090059908A (en) * | 2007-12-07 | 2009-06-11 | 현대자동차주식회사 | Pressure test apparatus for cylinder head gasket in vehicle engine |
| CN203037457U (en) * | 2013-01-28 | 2013-07-03 | 中国重汽集团济南动力有限公司 | Loading piston anti-attrition apparatus for engine cylinder body fatigue pulse test |
| CN203285488U (en) * | 2013-05-08 | 2013-11-13 | 黄明清 | Spiral straight shaft engine |
Non-Patent Citations (1)
| Title |
|---|
| 刘宏瑞等: "《基于NI CompactRIO平台的发动机连杆疲劳试验***研究》", 《仪器仪表学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568409A (en) * | 2014-12-31 | 2015-04-29 | 中国北方发动机研究所(天津) | Engine body inversion single-partition-plate fatigue test device |
| CN110849600A (en) * | 2019-10-14 | 2020-02-28 | 中国北方发动机研究所(天津) | Device for carrying out piston pin hole thermal engine fatigue test by using high-frequency testing machine |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |