CN104236880B - A kind of torsional arm component fatigue experimental device - Google Patents
A kind of torsional arm component fatigue experimental device Download PDFInfo
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- CN104236880B CN104236880B CN201410424579.4A CN201410424579A CN104236880B CN 104236880 B CN104236880 B CN 104236880B CN 201410424579 A CN201410424579 A CN 201410424579A CN 104236880 B CN104236880 B CN 104236880B
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Abstract
A kind of torsional arm component fatigue experimental device, belongs to torsional arm component fatigue test technology.Characterized in that, main shaft bogusware one end axis body is provided with two relative semicircle orifices, main shaft bogusware axis body external diameter is adapted to snap ring internal diameter, is alignd with two relative semicircle orifices on snap ring, the main shaft bogusware other end is fixed on test-bed；No.1 actuator connects No.1 force cell and is connected by No.1 loading joint with No.1 toggle, No. two actuator connect No. two force cells and are connected by No. two loading joints with No. two toggles, No.1 actuator is arranged symmetrically with No. two actuator relative to main shaft bogusware, apply a pair respectively in the opposite direction in No.1 loading joint and No. two loading joints and fixed along the load of toggle tangential direction, No.1 actuator, No. two actuator fixing ends and test-bed.Can more real simulation installation structure and Load Characteristics, it is as a result more accurate credible.Tested by using apparatus of the present invention, experiment overall error can be controlled within 3%.
Description
Technical field
The invention belongs to torsional arm component fatigue test technology, is related to a kind of torsional arm component fatigue experimental device.
Background technology
In helicopter structure, toggle is typically all mounted in pairs, and one end is connected with rotating ring, the other end by snap ring with
Mast is connected or is connected by ring flange with center piece, is primarily subjected to a pair of circumferential loads in opposite direction of rotating ring transmission.
For the reliability for ensureing its good performance and using, its load should be simulated and design feature carries out fatigue test examination, be true
Its fixed service life provides foundation.
Prior art is tested using single toggle loading device, it is impossible to real simulation load transmission relation, is existed
Larger engineering simplification, experiment overall error is up to 10% or so.
The content of the invention
The technical problem to be solved in the present invention：A kind of torsional arm component fatigue experimental device is provided, can more real simulation dress
Machine structure and Load Characteristics, the true fatigue behaviour and weak part of torsional arm component can be more accurately determined, to determine it
Service life provides foundation, as a result more accurate credible.
Technical scheme：A kind of torsional arm component fatigue experimental device, torsional arm component include snap ring 6, No.1
Toggle 4 and No. two toggles 7, by aircraft installation state assembling, square arm 4-1 one end of No.1 toggle 4 by bolt with
Triangular Arm 4-2 is fixedly connected, and the other end is fixedly connected by bolt with snap ring 6；Square arm 7-1 one end of No. two toggles 7 leads to
Cross bolt to be fixedly connected with Triangular Arm 7-2, the other end is fixedly connected by bolt with snap ring 6.It is characterised in that it includes：Main shaft
Bogusware 5, No.1 actuator 1, No.1 force cell 2, No.1 loading joint 3, No. two actuator 10, No. two force cells 9,
No. two loading joints 8, coordinated loading control system 11, one end axis body of main shaft bogusware 5 are provided with two relative semicircle orifices, main shaft
The axis body external diameter of bogusware 5 is adapted to the internal diameter of snap ring 6, is alignd with two relative semicircle orifices on snap ring 6, the other end of main shaft bogusware 5 is consolidated
It is scheduled on test-bed；No.1 actuator 1 connects No.1 force cell 2 and connected by No.1 loading joint 3 with No.1 toggle 4
Connect, No. two actuator 10 connect No. two force cells 9 and are connected by No. two loading joints 8 with No. two toggles 7, No.1 start
Device 1 is arranged symmetrically with No. two actuator 10 relative to main shaft bogusware 5, loads joint 3 in No.1 and No. two loading joints 8 are applied respectively
Add a pair it is in opposite direction and along the load of toggle tangential direction, No.1 actuator 1, No. two fixing end of actuator 10 and testing stand
Frame is fixed.
The No.1 loading joint 3 is monaural chip architecture, and a bearing hole, a built-in joint ball are provided with monaural piece
Bearing, one end of No.1 loading joint 3 are fixedly connected with No.1 force cell 2, and the Triangular Arm shaft end of No.1 toggle 4 passes through
Bearing hole is fixedly connected with No.1 loading joint 3.
No. two loading joints 8 are monaural chip architecture, and a bearing hole, a built-in joint ball are provided with monaural piece
Bearing, one end of No. two loading joints 8 are fixedly connected with No. two force cells 9, and the Triangular Arm shaft end of No. two toggles 7 passes through
Bearing hole is fixedly connected with No.1 loading joint 3.
The angle of the snap ring 6 and the square arm 4-1 of No.1 toggle 4 is 5 ° -45 °, the square arm 4- of No.1 toggle 4
1 and the Triangular Arm 4-2 of No.1 toggle 4 angle are 60 ° -135 °.
The square arm 7-1 of the snap ring 6 and No. two toggles 7 angle is 5 ° -45 °, the square arm 7- of No. two toggles 7
1 and the Triangular Arm 7-2 angles of No. two toggles 7 be 60 ° -135 °.
Connecting bolt connects main shaft bogusware 5 and snap ring 6 by described main shaft bogusware 5 with the semicircle orifice on snap ring 6, passes through
Tighten connecting bolt snap ring 6 is fixed on main shaft bogusware 5.
Beneficial effects of the present invention：
The torsional arm component fatigue experimental device that the present invention designs, simulation installation structure and Load Characteristics, are added using two
Carry actuator and apply a pair of tangential direction load in opposite direction in two toggles and rotating ring tie point respectively, can more real simulation
Structure of installing and Load Characteristics, it is as a result more accurate credible.Tested by using apparatus of the present invention, experiment overall error can be controlled
System is within 3%.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is top view of the present invention.
Fig. 3 is A-A sectional views of the present invention.
Fig. 4 is B-B sectional views of the present invention.
Embodiment
The present invention is described in further details below.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the present invention is a kind of torsional arm component fatigue experimental device, including：
Main shaft bogusware 5, No.1 actuator 1, No.1 force cell 2, No.1 loading joint 3, No. two actuator 10, No. two
Force cell 9, No. two loading joints 8, coordinated loading control system 11, the axis body of main shaft bogusware 5 are provided with two relative half
Circular hole, the axis body external diameter of main shaft bogusware 5 are adapted to the internal diameter of snap ring 6, are alignd with two relative semicircle orifices on snap ring 6, connecting bolt
Main shaft bogusware and snap ring are connected with the semicircle orifice on snap ring by described main shaft bogusware, consolidated snap ring by tightening connecting bolt
It is scheduled on main shaft bogusware.No.1 actuator 1 connects No.1 force cell 2 and connected by No.1 loading joint 3 with No.1 toggle 4
Connect.No. two actuator 10 connect No. two force cells 9 and are connected by No. two loading joints 8 with No. two toggles 7.No.1 start
Device 1 is arranged symmetrically with No. two actuator 10 relative to main shaft bogusware 5, loads joint 3 in No.1 and No. two loading joints 8 are applied respectively
Add a pair it is in opposite direction and along the load of toggle tangential direction.1, No. two main shaft bogusware 5, No.1 actuator actuator 10 are fixed
End is fixed with test-bed, and No.1 toggle 4 and No. two toggles 7 are hinged with snap ring 6, and snap ring 6 is used to transmit load simultaneously
Produce the angle of the square arm and Triangular Arm of snap ring 6 and toggle.
No.1 loading joint 3 is monaural chip architecture, and a bearing hole, a built-in joint ball axle are provided with monaural piece
Hold, one end of No.1 loading joint 3 is fixedly connected with No.1 force cell 2, and the Triangular Arm shaft end of No.1 toggle 4 passes through axle
Bearing bore is fixedly connected with No.1 loading joint 3.
No. two loading joints 8 are monaural chip architecture, and a bearing hole, a built-in joint ball axle are provided with monaural piece
Hold, one end of No. two loading joints 8 is fixedly connected with No. two force cells 9, and the Triangular Arm shaft end of No. two toggles 7 passes through axle
Bearing bore is fixedly connected with No.1 loading joint 3.
The angle of the snap ring 6 and the square arm 4-1 of No.1 toggle 4 is 5 ° -45 °, the square arm 4- of No.1 toggle 4
1 and the Triangular Arm 4-2 of No.1 toggle 4 angle are 60 ° -135 °.
The square arm 7-1 of the snap ring 6 and No. two toggles 7 angle is 5 ° -45 °, the square arm 7- of No. two toggles 7
1 and the Triangular Arm 7-2 angles of No. two toggles 7 be 60 ° -135 °.
During test, 1, No. two actuator 10 of No.1 actuator is controlled to apply a pair with going straight up to by coordinated loading control system 11
Owner's rotor wing rotation load in opposite direction, real simulation installation structure and Load Characteristics, are tested by accumulation cycle, are tried
The true fatigue behaviour and weak part of part are tested, to determine that the service life of testpieces provides foundation.
In one embodiment of the invention, the square arm 7-1 of snap ring 6 and square the arm 4-1 and toggle 7 of toggle 4
Angle be 20 °, square the arm 4-1 and toggle 7 of toggle 4 square arm 7-1 and the Triangular Arm 4-2 and torsion of toggle 4
The Triangular Arm 7-2 of arm 7 angle is 98 °.
Claims (6)
- A kind of 1. torsional arm component fatigue experimental device, it is characterised in that including main shaft bogusware (5), No.1 actuator (1), one Number force cell (2), No.1 loading joint (3), No. two actuator (10), No. two force cells (9), No. two loading joints (8) and coordinated loading control system (11), main shaft bogusware (5) one end axis body are provided with two relative semicircle orifices, main shaft bogusware (5) axis body external diameter is adapted to snap ring (6) internal diameter, is alignd with the upper two relative semicircle orifices of snap ring (6), main shaft bogusware (5) is another End is fixed on test-bed；No.1 actuator (1) connection No.1 force cell (2) loads joint (3) and one by No.1 The connection of number toggle (4), No. two actuator (10) connect No. two force cells (9) and pass through No. two loading joints (8) and No. two Toggle (7) connects, and No.1 actuator (1) is arranged symmetrically with No. two actuator (10) relative to main shaft bogusware (5), in No.1 plus Carry joint (3) and No. two loading joints (8) apply a pair in the opposite direction and made along the load of toggle tangential direction, No.1 respectively Dynamic device (1), No. two actuator (10) fixing ends and test-bed are fixed；No.1 toggle (4), No. two toggles (7) with card Ring (6) is hinged.
- 2. torsional arm component fatigue experimental device according to claim 1, it is characterised in that No.1 loads joint (3) and is Monaural chip architecture, a bearing hole, a built-in joint ball bearing, one end of No.1 loading joint (3) are provided with monaural piece It is fixedly connected with No.1 force cell (2), the Triangular Arm shaft end of No.1 toggle (4) loads joint through bearing hole and No.1 (3) it is fixedly connected.
- 3. torsional arm component fatigue experimental device according to claim 1, it is characterised in that No. two loading joints (8) are Monaural chip architecture, a bearing hole, a built-in joint ball bearing, one end of No. two loading joints (8) are provided with monaural piece It is fixedly connected with No. two force cells (9), the Triangular Arm shaft end of No. two toggles (7) loads joint through bearing hole and No.1 (3) it is fixedly connected.
- 4. torsional arm component fatigue experimental device according to claim 1, it is characterised in that the snap ring (6) and No.1 The angle of the square arm (4-1) of toggle (4) is 5 ° -45 °, square arm (4-1) and the No.1 toggle of No.1 toggle (4) (4) angle of Triangular Arm (4-2) is 60 ° -135 °.
- 5. torsional arm component fatigue experimental device according to claim 1, it is characterised in that the snap ring (6) and No. two The angle of the square arm (7-1) of toggle (7) is 5 ° -45 °, square arm (7-1) and No. two toggles of No. two toggles (7) (7) angle of Triangular Arm (7-2) is 60 ° -135 °.
- 6. torsional arm component fatigue experimental device according to claim 1, it is characterised in that connecting bolt passes through described Main shaft bogusware (5) connects main shaft bogusware (5) and snap ring (6) with the semicircle orifice on snap ring (6), by tightening connecting bolt by snap ring (6) it is fixed on main shaft bogusware (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410424579.4A CN104236880B (en) | 2014-08-26 | 2014-08-26 | A kind of torsional arm component fatigue experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410424579.4A CN104236880B (en) | 2014-08-26 | 2014-08-26 | A kind of torsional arm component fatigue experimental device |
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| CN104236880A CN104236880A (en) | 2014-12-24 |
| CN104236880B true CN104236880B (en) | 2018-02-23 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833493B (en) * | 2015-04-07 | 2017-07-07 | 中国直升机设计研究所 | A kind of tail-rotor hub center piece fatigue test loading device |
| CN110095265B (en) * | 2018-01-27 | 2021-02-19 | 江苏锡华铸造有限公司 | Torsion arm assembly fatigue test device |
| CN109506914B (en) * | 2018-11-12 | 2020-12-29 | 中国直升机设计研究所 | Tail stock pitch-changing fatigue test device |
| CN112179787B (en) * | 2020-09-25 | 2022-09-30 | 中国直升机设计研究所 | Torsion test device for main paddle central part and support arm limited lock |
| CN112213101B (en) * | 2020-10-16 | 2022-06-17 | 中国直升机设计研究所 | Durability test bed for torsion arm swing-proof bearing of helicopter |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447550C (en) * | 2006-03-17 | 2008-12-31 | 燕山大学 | Externally swing joint-bearing fatigue experimental apparatus of automatic rotor oblique device for helicopter |
| CN100485345C (en) * | 2006-03-17 | 2009-05-06 | 燕山大学 | Apparatus for testing fatigue strength of axial hinge bearing of helicopter |
| CN101368874B (en) * | 2008-09-26 | 2011-02-16 | 成都发动机（集团）有限公司 | Testing device for implementing main torque and vibrating torque to high speed rotary main shaft |
| CN102628744B (en) * | 2012-04-17 | 2014-05-07 | 长春轨道客车股份有限公司 | Double-way loading force transmission unit of simulation fatigue test device |
| KR101368070B1 (en) * | 2012-12-28 | 2014-02-27 | 현대위아 주식회사 | Fatigue evaluation device of rotating swashplate of helicopter main rotor control system |
| CN103162963B (en) * | 2013-02-06 | 2015-03-25 | 燕山大学 | Helicopter automatic inclinator spherical hinge bearing comprehensive fatigue testing machine |
| CN203688373U (en) * | 2013-12-02 | 2014-07-02 | 北京乐冶液压气动设备技术有限公司 | Tension compression and torsional vibration fatigue test device |
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