CN209495940U - A kind of fatigue tester - Google Patents
A kind of fatigue tester Download PDFInfo
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- CN209495940U CN209495940U CN201920042269.4U CN201920042269U CN209495940U CN 209495940 U CN209495940 U CN 209495940U CN 201920042269 U CN201920042269 U CN 201920042269U CN 209495940 U CN209495940 U CN 209495940U
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- 238000012360 testing method Methods 0.000 claims abstract description 65
- 238000002474 experimental method Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000005452 bending Methods 0.000 claims abstract description 25
- 238000009661 fatigue test Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
It include torsion mechanism for testing and rotoflector mechanism for testing the utility model discloses a kind of fatigue tester, torsion main shaft, the torque loading device and torque sensor to load torque that torsion mechanism for testing includes the fixation bracket of fixed experiment exemplar, is connected with the side of experiment exemplar, rotoflector mechanism for testing include the bending main shaft being connected with the other side of experiment exemplar, moment of flexure sensor and the moment of flexure loading device for loading moment of flexure.In fatigue tester provided by the utility model, torsion main shaft is connected with the side for testing exemplar, bending main shaft is connected with the other side for testing exemplar, and torque loading device applies torque to experiment exemplar by torsion main shaft, while by curved major, axially experiment exemplar loads moment of flexure to moment of flexure loading device.Torque sensor and moment of flexure sensor measure respectively while the torque and moment of flexure of the experiment exemplar under torsion and rotoflector state, and then improves the accuracy of test result data.
Description
Technical field
The utility model relates to technical field of experiment equipment, in particular to a kind of fatigue tester.
Background technique
The workpiece such as flexible flywheel usually require the fatigue properties under measurement torsion and rotoflector state after processing is completed.
In the prior art, torsional fatigue test and rotary bending fatigue test needs carry out on two different testing machines respectively.And
For the workpiece such as flexible flywheel under actual condition, suffered is the composite force of two power of torsion and rotoflector, is turned round respectively
Influence of the composite force to workpiece can not be measured by turning fatigue test and rotary bending fatigue test, this leads to test result data and reality
Border operating condition has larger difference.
Therefore, how a kind of fatigue tester that can measure fatigue properties under torsion and rotoflector state simultaneously is provided
It is those skilled in the art's technical problem urgently to be solved.
Utility model content
The purpose of the utility model is to provide a kind of fatigue testers comprising torsion mechanism for testing and rotoflector test
Mechanism, so as to measure the fatigue properties under torsion and rotoflector state simultaneously.
To achieve the above object, the utility model provides a kind of fatigue tester, comprising:
Reverse mechanism for testing, the torsion mechanism for testing include to fixed experiment exemplar fixation bracket, to reality
It tests the connected torsion main shaft in the side of exemplar, be connected with the torsion main shaft to the torque loading device and use for loading torque
To measure the torque sensor of torque；
Rotoflector mechanism for testing, the rotoflector mechanism for testing include to the other side phase with the experiment exemplar
Bending main shaft even, the moment of flexure sensor to measure moment of flexure and the moment of flexure load to load moment of flexure to the experiment exemplar
Device.
Preferably, the torque loading device include with the torsion support arm that is fixedly connected of torsion main shaft periphery and
To drive the torsion oil cylinder of the torsion main axis by the torsion support arm.
Preferably, the moment of flexure loading device includes rotary support, the degree of eccentricity tune being fixedly connected with the rotary support
Bed rearrangement, the degree of eccentricity adjusting seat include the mounting rack being coaxially disposed with the bending main shaft and are fixed on the bending spindle end
The bearing block in portion, between the mounting rack and the bearing block have be disposed radially, the adjustment bar to adjust moment of flexure size.
Preferably, the moment of flexure loading device further includes rotating electric machine, and the rotating electric machine is fixed with the rotary support
Connection, the arbor of the rotating electric machine and the bending main shaft are coaxially disposed, and the arbor is fixedly connected with the mounting rack.
Preferably, the torsion main shaft is equipped with far from the end of the experiment exemplar to measure torsion Spindle rotation angle degree
Angular transducer.
It preferably, further include test box body, the torsion mechanism for testing and the rotoflector mechanism for testing are fixed
In the upper surface of the test box body, the upper surface of the test box body is additionally provided with the master to support the torsion main shaft
Shaft stool.
Preferably, the torque loading device is set to the bottom of the spindle bearing.
Preferably, the cylinder barrel of the torsion oil cylinder and the test box body are hinged.
Fatigue tester provided by the utility model, including torsion mechanism for testing and rotoflector mechanism for testing, torsion
Mechanism for testing includes that fixed bracket, torsion main shaft, torque loading device and torque sensor, rotoflector mechanism for testing include
It is bent main shaft, moment of flexure sensor and moment of flexure loading device.Experiment exemplar is fixed by fixed bracket, reverses main shaft and reality
The side for testing exemplar is connected, and bending main shaft is connected with the other side for testing exemplar, and torque loading device is by reversing main shaft to reality
It tests exemplar and applies torque, while axially experiment exemplar loads moment of flexure to moment of flexure loading device by curved major.Torque sensor and curved
Square sensor measures respectively while the torque and moment of flexure of the experiment exemplar under torsion and rotoflector state, and then improves
The accuracy of test result data.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of fatigue tester provided by the utility model；
Fig. 2 is the cross-sectional view of Section A-A in Fig. 1.
Wherein, the appended drawing reference in Fig. 1 and Fig. 2 are as follows:
Angular transducer 1, torsion oil cylinder 2, torsion main shaft 3, torque sensor 4, fixed bracket 5, experiment exemplar 6, moment of flexure
Sensor 7, bending main shaft 8, mounting rack 9, bearing block 10, adjustment bar 11, rotary support 12, rotating electric machine 13, test box body
14, support arm 15 is reversed.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically
The utility model is described in further detail for embodiment.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the structural schematic diagram of fatigue tester provided by the utility model；Fig. 2 is Fig. 1
The cross-sectional view of middle Section A-A.
Fatigue tester provided by the utility model, structure is as depicted in figs. 1 and 2, including torsion mechanism for testing and
Rotoflector mechanism for testing, the two are located at the two sides of experiment exemplar 6, and torsion mechanism for testing can apply to experiment exemplar 6
Torque, rotoflector mechanism for testing can apply moment of flexure to experiment exemplar 6, to reach measurement experiment exemplar 6 while in torsion
Turn the purpose with the fatigue properties under rotoflector state.
Specifically, torsion mechanism for testing includes fixed bracket 5, torsion main shaft 3, torque loading device and torque sensor
4.Fixed bracket 5 is plate-like, and is arranged along the vertical direction, and fixed 5 center of bracket is equipped with the perforative mounting hole of through-thickness, real
The side for testing exemplar 6 and fixed bracket 5 is detachably connected, so that experiment exemplar 6 be made to be fixed in perpendicular.Reverse main shaft
3 end passes through mounting hole and is connected with the side for testing exemplar 6, the two coaxial arrangement.Torsion main shaft 3 is additionally provided with torque load dress
It sets, torque loading device can apply torque effect by circumferentially rotation torsion main shaft 3 to experiment exemplar 6.
Rotoflector mechanism for testing includes bending main shaft 8, moment of flexure loading device and moment of flexure sensor 7.Be bent main shaft 8 with
The other side for testing exemplar 6 is connected, and the two is coaxially disposed, and moment of flexure loading device radially applies to the bending load of main shaft 8 curved
Square effect, to make to test exemplar 6 by Moment.
In addition, fatigue tester further includes test box body 14, reverses mechanism for testing and rotoflector mechanism for testing is solid
Due to the upper surface of test box body 14, the lower end of fixed bracket 5 is fixedly connected with the upper surface of test box body 14, testing machine
Cabinet 14 can play a supporting role to each mechanism for testing.
In the present embodiment, fatigue tester is by torsion mechanism for testing and rotoflector mechanism for testing simultaneously to experiment exemplar
6 apply torque and Moment, so that fatigue properties of the test experiments exemplar 6 under torque and moment of flexure coupling, improve
The accuracy of test result.
Optionally, torque loading device includes torsion support arm 15 and torsion oil cylinder 2, as shown in Fig. 2, torsion support arm 15 includes
Mounting ring and the pushing arm radially extended, mounting ring the modes such as are connected by pin key, are bolted or be interference fitteds and reversing
3 periphery of main shaft is fixedly connected, the front end of pushing arm and the piston hinge of torsion oil cylinder 2.The piston of torsion oil cylinder 2 is flexible to be pushed away
Dynamicthrust arm is circumferentially rotated along torsion main shaft 3, and then torsion main shaft 3 is driven circumferentially to rotate, and is reached and is applied to experiment exemplar 6
The purpose of torque.Stress suffered by oil cylinder 2 is reversed during to reduce application torque, reverses the cylinder barrel and testing machine of oil cylinder 2
Cabinet 14 is hinged.The axial direction of its articulated shaft is axial parallel with torsion main shaft 3.Certainly, motor can also be used in torque loading device
Gear mechanism or crankshaft rod structure etc., it is not limited here.Torque sensor 4 is set to the middle part of torsion main shaft 3, can be to torsion
Square measures, and is conveniently adjusted the torque being applied on experiment exemplar 6.
Optionally, the upper surface for testing box body 14 is additionally provided with to support the spindle bearing for reversing main shaft 3.Such as Fig. 1 institute
Show, spindle bearing includes two be axially distributed piece support plate along torsion main shaft 3, and two support plates are equipped with through-thickness and run through
Via hole, reverse between main shaft 3 and via hole through bearing connection.Torque loading device is set to the bottom of spindle bearing.Main shaft branch
Seat can protect torque loading device while main shaft 3 are reversed in support.
Further, torsion main shaft 3 is equipped with angular transducer 1 far from the end of experiment exemplar 6, and angular transducer 1 can be surveyed
Amount torsion main shaft 3 rotates angle, and angular transducer 1 and torsion oil cylinder 2 are connected with Hydrauservo System, Hydrauservo System energy
The stroke of the rotational angle control torsion oil cylinder 2 of enough torsion main shafts 3 measured according to angular transducer 1, so that it is big to control torque
It is small.
In the present embodiment, torque loading device is by torsion oil cylinder 2 and reverses the torque on 15 regulation experiment exemplar 6 of support arm
Size, torsion oil cylinder 2 can apply biggish torque to experiment exemplar 6, while reverse the stroke of oil cylinder 2 convenient for control.
Optionally, moment of flexure loading device includes rotary support 12 and degree of eccentricity adjusting seat.As shown in Figure 1, the degree of eccentricity adjusts
Seat carries out radial positioning by rotary support 12, and degree of eccentricity adjusting seat can apply radial active force to bending main shaft 8, thus
Make to test exemplar 6 by Moment.
Specifically, degree of eccentricity adjusting seat includes mounting rack 9, bearing block 10 and moment of flexure adjustment bar positioned there between
11.Mounting rack 9 and bending main shaft 8 are coaxially disposed, and bending 8 end of main shaft is connect with bearing block 10 by bearing, 9 direction of mounting rack
The one end for being bent main shaft 8 is equipped with columned adjustment chamber, and bearing block 10 is set in adjustment chamber, and the side wall for adjusting chamber is equipped with along thickness
The perforative threaded hole in direction is spent, the periphery of adjustment bar 11 is equipped with the external screw thread that can be closed with corresponding threaded holes.Bar 11 is adjusted to be arranged
In threaded hole, end and the periphery of bearing block 10 offset, and adjust bar 11 by rotation, the radial position of bearing block 10 can be changed
It sets, so that bending main shaft 8 be made to generate bending because radial displacement occurs, realizes the mesh for applying Moment on bending main shaft 8
's.Moment of flexure sensor 7 is set to bending main shaft 8 close to the end of experiment exemplar 6, so as to directly be held to experiment exemplar 6
The moment of flexure size received measures.Certainly, in degree of eccentricity adjusting seat can circumferentially arranged more adjustment bars 11, by adjusting bar 11
The end of bending main shaft 8 adjusted can be fixed.
In addition, moment of flexure loading device further includes rotating electric machine 13, rotary support 12 includes the perpendicular of 8 axis of vertical curve main shaft
Allotment support part, vertical support portion have the perforative through-hole of through-thickness, and rotating electric machine 13 is fixed on vertical support portion far from curved
The side of bent main shaft 8.The arbor of rotating electric machine 13 and mounting rack 9 are by pin joint or the modes such as are bolted and are fixedly connected, and rotate
The rotation of motor 13 is able to drive the synchronous rotation of mounting rack 9, and the rotation of mounting rack 9 can drive adjustment bar 11 circumferentially moved, make curved
The bending direction of bent main shaft 8 circumferentially constantly changes, and then constantly changes the direction of moment of flexure on experiment exemplar 6.
In the present embodiment, moment of flexure loading device pushes bending main shaft 8 to generate radial displacement by adjusting bar 11, to make reality
Exemplar 6 is tested by Moment.In addition, moment of flexure loading device also passes through the action direction of the constantly adjustment moment of flexure of rotating electric machine 13,
Simulated experiment exemplar 6 is during rotation by the changing Moment in direction, to keep experimental result more accurate.
It should be noted that in the present specification, such as first and second etc relational terms are used merely to one
Entity is distinguished with other several entities, and without necessarily requiring or implying between these entities, there are any this actual
Relationship or sequence.
Fatigue tester provided by the utility model is described in detail above.Specific case used herein
The principles of the present invention and embodiment are expounded, the above embodiments are only used to help understand, and this is practical
Novel method and its core concept.It should be pointed out that for those skilled in the art, not departing from this reality
Under the premise of with new principle, several improvements and modifications can be made to this utility model, these improvement and modification are also fallen into
In the protection scope of the utility model claims.
Claims (8)
1. a kind of fatigue tester characterized by comprising
Reverse mechanism for testing, the torsion mechanism for testing include to fixed experiment exemplar (6) fixation bracket (5), to
The connected torsion main shaft (3) in the side of experiment exemplar (6), being connected with the torsion main shaft (3) adds to load the torque of torque
It carries and sets and the torque sensor to measure torque (4)；
Rotoflector mechanism for testing, the rotoflector mechanism for testing include to the other side phase with experiment exemplar (6)
Even bending main shaft (8), the moment of flexure sensor (7) to measure moment of flexure and to the experiment exemplar (6) load moment of flexure
Moment of flexure loading device.
2. fatigue tester according to claim 1, which is characterized in that the torque loading device includes and the torsion
The torsion support arm (15) and drive the torsion master to pass through the torsion support arm (15) that main shaft (3) periphery is fixedly connected
The torsion oil cylinder (2) of axis (3) rotation.
3. fatigue tester according to claim 2, which is characterized in that the moment of flexure loading device includes rotary support
(12), the degree of eccentricity adjusting seat being fixedly connected with the rotary support (12), the degree of eccentricity adjusting seat include and the bending
The mounting rack (9) of main shaft (8) coaxial arrangement and the bearing block (10) for being fixed on described bending main shaft (8) end, the mounting rack
(9) between the bearing block (10) have be disposed radially, the adjustment bar (11) to adjust moment of flexure size.
4. fatigue tester according to claim 3, which is characterized in that the moment of flexure loading device further includes rotating electric machine
(13), the rotating electric machine (13) is fixedly connected with the rotary support (12), the arbor of the rotating electric machine (13) with it is described
It is bent main shaft (8) coaxial arrangement, the arbor is fixedly connected with the mounting rack (9).
5. fatigue tester according to claim 4, which is characterized in that the torsion main shaft (3) is far from the experiment sample
The end of part (6) is equipped with the angular transducer (1) to measure torsion main shaft (3) rotation angle.
6. according to fatigue tester described in claim 2 to 5 any one, which is characterized in that further include test box body
(14), the torsion mechanism for testing and the rotoflector mechanism for testing are both secured to the upper end of test box body (14)
Face, the upper surface of test box body (14) are additionally provided with the spindle bearing to support torsion main shaft (3).
7. fatigue tester according to claim 6, which is characterized in that the torque loading device is set to the main shaft
The bottom of support.
8. fatigue tester according to claim 7, which is characterized in that the cylinder barrel of torsion oil cylinder (2) and the examination
It is hinged to test box body (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042269.4U CN209495940U (en) | 2019-01-10 | 2019-01-10 | A kind of fatigue tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042269.4U CN209495940U (en) | 2019-01-10 | 2019-01-10 | A kind of fatigue tester |
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| Publication Number | Publication Date |
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| CN209495940U true CN209495940U (en) | 2019-10-15 |
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| CN201920042269.4U Expired - Fee Related CN209495940U (en) | 2019-01-10 | 2019-01-10 | A kind of fatigue tester |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198044A (en) * | 2020-09-22 | 2021-01-08 | 施启明 | Testing device for testing torsion resistance and bending resistance of insulator |
| CN112284660A (en) * | 2020-09-28 | 2021-01-29 | 浙江大学 | Bent torsion composite load test device of bent axle |
| CN112880992A (en) * | 2021-01-15 | 2021-06-01 | 一汽解放汽车有限公司 | System and method for crankshaft bending and twisting fatigue test |
| CN113624629A (en) * | 2021-08-10 | 2021-11-09 | 中机试验装备股份有限公司 | Fatigue wear testing machine for cross axle |
| CN114184378A (en) * | 2021-12-02 | 2022-03-15 | 江苏心源航空科技有限公司 | Declination axis static torsion test bed |
| CN114354411A (en) * | 2021-12-28 | 2022-04-15 | 重庆长安汽车股份有限公司 | Device and method for testing fatigue capability of weld joint of automobile rear tie rod |
| CN114608979A (en) * | 2022-03-22 | 2022-06-10 | 西南交通大学 | Bending-torsion composite high-temperature fretting fatigue test device |
| CN114923796A (en) * | 2022-05-18 | 2022-08-19 | 福州大学 | Welding drill rod joint bending fatigue testing machine and working method thereof |
| CN115165609A (en) * | 2022-07-27 | 2022-10-11 | 福州大学 | Bending-torsion composite loading fatigue testing machine |
| CN116754208A (en) * | 2023-08-16 | 2023-09-15 | 天津航天瑞莱科技有限公司 | Fatigue test device for static blade adjusting mechanism assembly of compressor |
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2019
- 2019-01-10 CN CN201920042269.4U patent/CN209495940U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198044A (en) * | 2020-09-22 | 2021-01-08 | 施启明 | Testing device for testing torsion resistance and bending resistance of insulator |
| CN112198044B (en) * | 2020-09-22 | 2023-12-22 | 国网湖北省电力有限公司随州供电公司 | Testing device for testing torsion resistance and bending resistance of insulator |
| CN112284660B (en) * | 2020-09-28 | 2022-05-03 | 浙江大学 | Bent torsion composite load test device of bent axle |
| CN112284660A (en) * | 2020-09-28 | 2021-01-29 | 浙江大学 | Bent torsion composite load test device of bent axle |
| CN112880992A (en) * | 2021-01-15 | 2021-06-01 | 一汽解放汽车有限公司 | System and method for crankshaft bending and twisting fatigue test |
| CN112880992B (en) * | 2021-01-15 | 2022-06-07 | 一汽解放汽车有限公司 | System and method for crankshaft bending and twisting fatigue test |
| CN113624629A (en) * | 2021-08-10 | 2021-11-09 | 中机试验装备股份有限公司 | Fatigue wear testing machine for cross axle |
| CN114184378A (en) * | 2021-12-02 | 2022-03-15 | 江苏心源航空科技有限公司 | Declination axis static torsion test bed |
| CN114354411A (en) * | 2021-12-28 | 2022-04-15 | 重庆长安汽车股份有限公司 | Device and method for testing fatigue capability of weld joint of automobile rear tie rod |
| CN114354411B (en) * | 2021-12-28 | 2023-11-21 | 重庆长安汽车股份有限公司 | Device and method for testing weld fatigue capability of rear tie rod of automobile |
| CN114608979A (en) * | 2022-03-22 | 2022-06-10 | 西南交通大学 | Bending-torsion composite high-temperature fretting fatigue test device |
| CN114923796A (en) * | 2022-05-18 | 2022-08-19 | 福州大学 | Welding drill rod joint bending fatigue testing machine and working method thereof |
| CN115165609A (en) * | 2022-07-27 | 2022-10-11 | 福州大学 | Bending-torsion composite loading fatigue testing machine |
| CN116754208A (en) * | 2023-08-16 | 2023-09-15 | 天津航天瑞莱科技有限公司 | Fatigue test device for static blade adjusting mechanism assembly of compressor |
| CN116754208B (en) * | 2023-08-16 | 2023-11-07 | 天津航天瑞莱科技有限公司 | Fatigue test device for static blade adjusting mechanism assembly of compressor |
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