CN1888842A - Pure torque loader for integral flexible structural component - Google Patents
Pure torque loader for integral flexible structural component Download PDFInfo
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- CN1888842A CN1888842A CN 200610047250 CN200610047250A CN1888842A CN 1888842 A CN1888842 A CN 1888842A CN 200610047250 CN200610047250 CN 200610047250 CN 200610047250 A CN200610047250 A CN 200610047250A CN 1888842 A CN1888842 A CN 1888842A
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- 238000012545 processing Methods 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000010892 electric spark Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000009763 wire-cut EDM Methods 0.000 description 1
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Abstract
A pure torque loader of integer flexible component belongs to engine electron engineering and sensor and testing technology field suits for small torque static and norm static testing and demarcate to sensor, force gauge, and so on. It is made up by one full square incised in one time with electric spark wire-electrode, by outline border, up L type lever, load disc, low L type lever, supporting flexible patch, flexible ream and bolt bore. Up L type lever connects by two upper supporting flexible patches with outline border, the rest part don't contact with each other for micro clearance and it connects with load disc by flexible ream. Low L type lever connects by two underside supporting flexible patches with outline border, the rest part don't contact with each other for micro clearance and it connects with load disc by flexible ream. The up and low L type levers don't contact with each other for micro clearance. It completes the transfer form force to force by single integer flexible configuration with brief structure and easy operation for miniaturization.
Description
Technical field
The invention belongs to Mechatronic Engineering and sensor and technical field of measurement and test, be applicable to that the static state of little moments of torsion such as sensor, dynamometer and quasistatic detect and demarcate.
Background technology
Sensor must once comprehensively be checked on technology and performance before using after assembling, and promptly the sound attitude is demarcated.Its objective is to check whether sensor reaches desired technical performance index, the quality of evaluation sensor performance.At present, for the static demarcating of the moment of torsion of surveying torque sensor, " power * arm of force " principles of utilizing at reinforcing simultaneously of fixing arm of force two ends or counterweight, produce moment of torsion more.This method is demarcated for the high little moment of torsion of precision prescribed and had following several respects shortcoming: (1) arm of force two ends are difficult for loading simultaneously, and the in a single day stressed difference in two ends certainly will produce additional force at the centre of gyration; (2) adopt pulley to turn to, counterweight loads, and not only loads instability, impact is arranged, and will produce big moment of friction.Also have the moment of friction of arm lever support zone etc., all can reduce the precision of caliberating device; (3) the general structure more complicated of combined type caliberating device is installed, debugging is also cumbersome, and additional force, moment and moment of flexure are difficult to eliminate.So difficulty satisfies accurate little moment of torsion calibration request.
Summary of the invention
The present invention seeks to invent a kind of pure torsion loader, overcome the above-mentioned shortcoming that traditional moment of torsion loads and solve little moment of torsion and be not easy the problem that loads and detect.Utilize acting force and reacting force to equate principle, on rigid body that rigid support is arranged or elastic body, apply a power, produce the power of an opposite sign but equal magnitude simultaneously; Adopt up and down that L type lever resolves into couple with collinear forces, again by contact friction force with force couple role at detected torsion member one end (other end is fixing in advance), then just be subjected to the pure torsion effect on the measured piece.Adopt the transmission of overall flexibility structure realizable force and couple, finish the Static Detection and the demarcation of moment of torsion.
1. the technical scheme that pure torsion loader of the present invention adopts is: a kind of pure torsion loader of integral flexible is to be shaped with the Wire EDM time processing by a monoblock square body to make, it is characterized in that, by housing 1, go up L type lever 2, load disk 3, down L type lever 4, up and down four supporting flexible sheets 5,6 and two bolts hole 7 of two flexible hinges are formed up and down; Last L type lever 2 has the load(ing) point A ' of a concavity, and last L type lever 2 links to each other with housing 1 at junction E, junction G by two upper supporting flexible sheet 5, the remainder minim gap that do not contacted; Last L type lever 2 links to each other with loading disk 3 at junction C also by last flexible hinge 6; Following L type lever 4 has the rigid support B ' of a concavity, and following L type lever 4 links to each other with housing 1 at junction H, junction I place by following two supporting flexible sheets 5, the remainder minim gap that do not contacted; Following L type lever 4 cuts with scissors 6 by flexible down, links to each other with loading disk 3 at junction D; Minim gap has not contacted between last L type lever 2 and the following L type lever 4; Through hole A and B are made in the left side and center, the right side at housing 1, are the load(ing) point place of L type lever force and the rigid support place of following L type lever.
Effect of the present invention is to adopt the transmission of single overall flexibility structure realizable force and couple, and structure is simple and direct, is convenient to miniaturization, and easy and simple to handle; Solve little moment of torsion and be not easy to load and detect the demarcation problem.
Description of drawings
Accompanying drawing 1 is pure torsion loader moment of torsion loading principle figure, wherein: I-standard force-measuring ring, II-pure torsion loader, III-fixed bearing end, the IV-screw, the tested torsion member of V-, the VI-base, the loading force on the F-X direction, F '-X is to support reaction.
Accompanying drawing 2 is front views of pure torsion loader, 1-housing wherein, the last L type of 2-lever, 3-loads disk, L type lever under the 4-, 5-supporting flexible sheet, the flexible hinge of 6-, 7-bolt hole, A-through hole, the B-through hole, A '-load(ing) point, B '-rigid support, C, D, E, G, H, I-junction, X-X direction coordinate axis, Y-Y direction coordinate axis.
Accompanying drawing 3 is to go up L type lever 2 force diagrams, wherein: the last L type of 2-lever, A '-load(ing) point, the C-junction, E, G-junction, the F-loading force, Fcx-junction C is stressed directions X.
Accompanying drawing 5 is to load disk 3 force diagrams, and wherein: 3-loads disk, C, D ,-junction,
C is stressed at directions X in the Fcx-junction, F ' dx-junction D stressed on directions X,
Embodiment
Describe enforcement of the present invention in detail below in conjunction with accompanying drawing.At first utilize Wire-cut Electrical Discharge Machining technology Precision Machining to go out as shown in Figure 2 pure torsion loader, require the upper and lower surface roughness low, the precision at supporting flexible sheet 5 and flexible hinge 6 places wants high.
When loading, earlier the pure torsion loader is utilized two bolts hole 7 on the disk 3 to be connected with screw IV with needing the object III that loads moment of torsion, see accompanying drawing 1.With the through hole B on housing 1 right side of the circular rod member on the fixed bearing end III by the pure torsion loader, withstand on down on the rigid support B ' of L type lever 4 it is fixed, like this, limited the X that the B of L type lever 4 is ordered under the loader to degree of freedom; Utilize the round bar of standard force-measuring ring I to pierce into the left side through hole A of the housing 1 of pure torsion loader, the load(ing) point A ' that withstands on L type lever 2 goes up and loads.At two difficulties that power loads simultaneously that form moment of torsion, at first utilize acting force to equate principle with reacting force, along directions X loading force F,, form a pair of collinear forces F and F at load(ing) point A ' because rigid support B ' is fixing.In order on tested torsion member, to form pure torsion M and pure shear stress (body is sheared with face and sheared), eliminate other power and stress influence, loader II and tested torsion member V are by screw IV or gluing linking together, and measured piece V other end and base VI rigidly fix.When adding external applied load F, promptly when the load(ing) point A ' of upper lever 2 puts along directions X reinforcing F, produce the power F ' that size is identical, direction is opposite at rigid support B ' simultaneously, F and F ' are respectively by junction C and the junction D generation moment of couple M of upper and lower lever with the flexibility hinge 6 that loads disk, M=Fcx * R, R sees Fig. 3, Fig. 4, Fig. 5 for loading the radius of disk 3.Last L type lever 2 stressing conditions have been represented among Fig. 3; Fig. 4 has represented time L type lever 4 stressing conditions; Fig. 5 has represented to load the stressing conditions of disk 3 at junction C and D.Act on the power equal and opposite in direction of the little and F ' dx of the power Fcx that loads disk 3 junction C and D, direction is opposite, produces a moment of torsion.So, load disk 3 and under opposite direction power (couple) effect of two junction C and D, can only rotate.When loading disk 3 combined by 7 usefulness screw IV of the bolt hole on it and tested torsion member, this moment of couple just acted on the tested torsion member, applies corresponding pure torsion on measured piece, like this, just can detect the moment of torsion of measured piece.
Claims (1)
1. the pure torsion loader of an integral flexible is to be shaped with the Wire EDM time processing by a monoblock square body to make, it is characterized in that, by housing [1], go up L type lever [2], load disk [3], down L type lever [4], up and down four supporting flexible sheets [5], two flexible hinges [6] and two bolts hole [7] are formed up and down; Last L type lever [2] has a concavity load(ing) point [A '], last L type lever [2] by the two upper supporting flexible sheet [5 rigid supports, [E], junction [G] link to each other with housing [1] in the junction, the remainder minim gap that do not contacted; Last L type lever [2] is also by last flexible hinge [6], [C] links to each other with loading disk [3] in the junction, following L type lever [4] has a concavity rigid support [B '], [H], junction [I] locate to link to each other with housing [1] following L type lever [4] in the junction by following two supporting flexible sheets [5], the remainder minim gap that do not contacted; Following L type lever [4] passes through flexible hinge [6] down, and [D] links to each other with loading disk [3] in the junction; Minim gap has not contacted between last L type lever [2] and the following L type lever [4]; Through hole [A] and through hole [B] are made in the left side and center, the right side at housing [1].
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNB2006100472506A CN100410641C (en) | 2006-07-17 | 2006-07-17 | Pure torque loader for integral flexible structural component |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2006100472506A CN100410641C (en) | 2006-07-17 | 2006-07-17 | Pure torque loader for integral flexible structural component |
Publications (2)
Publication Number | Publication Date |
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CN1888842A true CN1888842A (en) | 2007-01-03 |
CN100410641C CN100410641C (en) | 2008-08-13 |
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CNB2006100472506A Expired - Fee Related CN100410641C (en) | 2006-07-17 | 2006-07-17 | Pure torque loader for integral flexible structural component |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101713704B (en) * | 2009-08-18 | 2011-05-04 | 浙江吉利汽车研究院有限公司 | Static twist positioning and clamping device of steering wheel |
CN103512705A (en) * | 2012-06-17 | 2014-01-15 | 黑龙江华安精益计量技术研究院有限公司 | Large-torque multiplier calibration method |
CN108827512A (en) * | 2018-06-22 | 2018-11-16 | 北京工业大学 | A kind of Micromass cell culture device using silicon torsional spring |
CN109406047A (en) * | 2018-11-15 | 2019-03-01 | 广东省计量科学研究院(华南国家计量测试中心) | A kind of slight torque generating means and its implementation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2314362Y (en) * | 1997-12-23 | 1999-04-14 | 中国科学院合肥智能机械研究所 | Multi-component force and moment sensor |
US6424245B1 (en) * | 2000-07-31 | 2002-07-23 | Caterpillar Inc. | Magnetic detent device |
CN100342628C (en) * | 2004-06-02 | 2007-10-10 | 燕山大学 | Dynamic torque loader |
-
2006
- 2006-07-17 CN CNB2006100472506A patent/CN100410641C/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101713704B (en) * | 2009-08-18 | 2011-05-04 | 浙江吉利汽车研究院有限公司 | Static twist positioning and clamping device of steering wheel |
CN103512705A (en) * | 2012-06-17 | 2014-01-15 | 黑龙江华安精益计量技术研究院有限公司 | Large-torque multiplier calibration method |
CN108827512A (en) * | 2018-06-22 | 2018-11-16 | 北京工业大学 | A kind of Micromass cell culture device using silicon torsional spring |
CN108827512B (en) * | 2018-06-22 | 2020-09-25 | 北京工业大学 | Micro-thrust measuring device adopting silicon torsion spring |
CN109406047A (en) * | 2018-11-15 | 2019-03-01 | 广东省计量科学研究院(华南国家计量测试中心) | A kind of slight torque generating means and its implementation |
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CN100410641C (en) | 2008-08-13 |
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