CN103712868A - Rotating bending fatigue testing machine - Google Patents
Rotating bending fatigue testing machine Download PDFInfo
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- CN103712868A CN103712868A CN201410027039.2A CN201410027039A CN103712868A CN 103712868 A CN103712868 A CN 103712868A CN 201410027039 A CN201410027039 A CN 201410027039A CN 103712868 A CN103712868 A CN 103712868A
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- lever
- barrel assembly
- motor
- rotary bending
- bending tester
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Abstract
The invention discloses a rotating bending fatigue testing machine. The rotating bending fatigue testing machine comprises a bottom machine base, a machine body, supporting seats, a lever, a motor and a control system and is characterized in that the rotating bending fatigue testing machine is a lever-type variable frequency regulation rotating bending fatigue testing machine with the horizontal type structure, wherein the left supporting seat, the right supporting seat, a left shaft barrel assembly, a right shaft barrel assembly, a clamp assembly, a connecting rod, a motor, a control button and a counter are respectively arranged on the machine body; a loading and unloading system with the gear structure is arranged in the machine body, and a lever, a leveling lead and weights are respectively arranged below the machine body. The rotating bending fatigue testing machine has the advantages that the level-type structure is combined with a variable frequency regulation manner, the complete machine is reasonable in layout and compact in structure, the output rotating speed of the motor is 900r/min to 1000r/min, and the rotating bending fatigue testing machine has the functions of rotating speed output control, cyclic testing, comparative testing and the like.
Description
Technical field
The present invention relates to the detection field of Physical Properties of Metallicmateriais, test specifically a kind of rotary bending tester of metal material fatigue strength and fatigue lifetime.
Background technology
Rotary bending tester is test metal material fatigue strength and a kind of checkout equipment of fatigue lifetime, domestic this type of test is at present mainly hydraulic servo and the large main flow type of mechanical type two, and design concept manufactures and designs according to the test principle that single-point is afterburning, two point is afterburning and 4 afterburning.It is small and exquisite and to sample accuracy requirement high not that single-point fatigue tester afterburning and two point reinforcing has build, but because of it, be subject to the restriction of the factors such as type restriction and counterweight loading, cause this kind equipment only can meet the testing requirements of lightweight material, and exist the lower unfavorable present situation that cannot be widely used in again popular material tests of test figure exact value; And traditional 4 add power fatigue tester, the designs that adopt single-frequency output dead weight type safe to load more, therefore there is the restriction of the factors such as requirement on machining accuracy is too high and process is loaded down with trivial details, counterweight heap(ed) capacity is large, cause production cost high, be unfavorable for marketing.
Summary of the invention
The rotary bending tester that the object of this invention is to provide a kind of lever and frequency conversion control.
The object of the present invention is achieved like this: it includes the support of bottom and the fuselage that support top arranges, and its cabinet is characterized as the casing of horizontal framed structure.Fuselage right side arranges electrical equipment and controls button sum counter, in body upper symmetric position, two cover left support abutment and right support abutments are set, left and right bearing top is provided with left beam barrel assembly and right beam barrel assembly, the right beam barrel assembly other end is connected with motor by motor connecting link, motor front end arranges connecting sleeve below magnetic force induction device is set, and magnetic force induction device is connected with counter; Left and right beam barrel assembly both sides arrange clip assembly, and clip assembly is connected with web joint, and web joint is connected with threaded mandrel by register pin, and threaded mandrel is provided with passive conical gear, and passive conical gear is connected with a joggle with the driving bevel gear being arranged on handwheel; Threaded mandrel lower end with by suspension ring, be connected with lever, lever is connected with fuselage lower surface by lever holder, the right-hand member of lever arranges suspension ring, suspension ring are connected with counterweight connecting rod, counterweight connecting rod is provided with counterweight; The left end of lever arranges leveling thallium.
Further, described testing machine is horizontal type structure.
Further, described testing machine is lever torque structure.
Further, in the cabinet of described testing machine, be provided with electric control system.
Further, described motor is variable-frequency motor, and output speed is that 900r/min is to 10000r/min.
Further, described left support abutment and right support abutment are respectively 2 covers, with fuselage be Split type structure.
Further, in described left beam barrel assembly and right beam barrel assembly, be provided with detachable sample holding device.
Further, the loading and unloading body of described test moment is spiral gear engaged transmission mode.
Further, described magnetic force induction device is inductive proximity sensor.
The present invention has the following advantages.
1, testing machine is frequency conversion output, and output speed 900r/min is to 10000r/min, wide accommodation.
2, left and right pillar and fuselage are split-type structural, are convenient to processing and install.
3, adopt lever-type structure, reduce counterweight gross mass.
4, adopt the design of spiral gear loading and unloading body, add and unload carried convenient, laborsaving.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention.
Fig. 2 is structure left view of the present invention.
Reference numeral explanation.
In Fig. 1: 1-support, 2-fuselage, 3-left support abutment, the left beam barrel assembly of 4-, 5-clip, 6-sample, 7-web joint, 8-clip assembly, the right beam barrel assembly of 9-, guard's valve is touched in 10-fracture, 11-right support abutment, 12-motor connecting link, 13-connecting sleeve, 14-magnetic force induction device, 15-motor, 16-counter, 17-controls button, 18-suspension ring, 19-lever, 20-suspension ring, 21-counterweight connecting rod, 22-lever holder, 23-leveling thallium, 24-counterweight.
In Fig. 2: 25-register pin, 26-threaded mandrel, 27-add unloading handwheel, 28-driving bevel gear, the passive conical gear of 29-, 30-power switch.
Below in conjunction with accompanying drawing, by example, the present invention is described in further details.But following example is only preferred embodiments of the present invention; do not represent the rights protection scope that the present invention limits; all any modifications of making within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Embodiment
As Fig. 1, testing machine is horizontal type structure, and bottom is support 1, and support described herein is the frame body being comprised of four root posts, and support 1 top is provided with fuselage 2, and the left end of fuselage 2 upper surfaces is installed two cover left support abutments 3 side by side.The right side horizontal level of left support abutment 3 is installed two cover right support abutments 11, left support abutment 3 tops arrange left beam barrel assembly 4, left beam barrel assembly 4 is connected with the right beam barrel assembly 9 that the top of right support abutment 11 arranges by clamping style 6, the right-hand member of right beam barrel assembly 9 connects motor connecting link 12, and motor connecting link 12 is connected with motor 15 by connecting sleeve 13.
Left beam barrel assembly 4 right-hand members are installed clip assembly 5, the left end of right beam barrel assembly 9 is installed clip assembly 8, the lower end of clip assembly 5 and clip assembly 8 is connected with the two ends of web joint 7 respectively, the centre of web joint 7 is by register pin 25(Fig. 2) with threaded mandrel 26(Fig. 2) be connected, threaded mandrel 26 outer rings are the inner ring screw-threaded engagement (Fig. 2) of thread bush and passive conical gear 29, the spiral gear of passive conical gear 29 and driving bevel gear 28(Fig. 2) be connected with a joggle, driving bevel gear 28 with add unloading handwheel 27(Fig. 2) be connected.Rotation adds unloading handwheel 27, drives driving bevel gear 28 and passive conical gear 29 synchronously to rotate, and with this, realizes the loading and unloading of moment.Threaded mandrel 26 lower ends are connected with lever 19 by suspension ring 18, the lever holder 22 that the left end of lever 19 and fuselage 2 belows arrange is connected and is provided with leveling thallium 23, the right-hand member of lever 19 is according to lever ratio setting suspension ring 20, and suspension ring 20 lower ends are connected with counterweight 24 by counterweight connecting rod 21.
Fuselage 2 right-hand members arrange counter 16, described counter is 8 programmable counters, counter 16 touches guard's valve 10 with the fracture that is arranged on right beam barrel assembly 9 belows respectively and is connected with the magnetic force induction device 14 that is arranged on connecting sleeve 13 belows, counter 16 belows arrange controls button 17, can realize startup, stops, the function such as reset, speed governing and test figure setting.
concrete operation step
Start power switch 30, add unloading handwheel 27 in unloading position, integral device is in holding state, by testing requirements, take out the sample 6 of respective material, the two ends of sample 6 are arranged on respectively in the clamper of left beam barrel assembly 4 and right beam barrel assembly 9, now check that style 6 and connecting link 12 should be in same plane positions.
Check that lever 19 is not when loading counterweight, under the support of suspension ring 18, should, in horizontality, if be offset, adjust leveling thallium 23 positions lever 19 is adjusted to horizontal level.After inspection, according to testing requirements, choose corresponding counterweight 24 and be installed on counterweight connecting rod 21 places, give style 6 and apply moment.
To right rotation, add unloading handwheel 27, make it drive driving bevel gear 28 rotations, driving bevel gear 28 drives passive conical gear 29 rotations, passive conical gear 29 drives threaded mandrel 26 to do motion vertically downward by internal thread, threaded mandrel 26 drives register pin 25 to move down, fully in link rod plate 7 contacts.The downward moment that the clip assembly 5 and 8 that now style 6 is subject to being installed by web joint 7 two ends brings, realizes the loading of moment thus.
After moment has loaded, press and control button 17, set after motor output speed and test parameters, press start button, test formally starts.Magnetic force induction device 14 is done to approach with the connecting sleeve 12 of motor 15 front ends and is connected, mode by the number of revolutions of motor 15 with data is presented on counter 16, when number of revolutions reaches setting value or sample 6 fracture, motor 15 quits work, the numerical value that counter 16 shows is that final test bit is (after sample 6 fractures in test, owing to losing support, the front end of left beam barrel assembly 4 and right beam barrel assembly 9 is downward-sloping, the front end of right beam barrel assembly 9 is pressed onto fracture and touches guard's valve 10, the power supply that guard's valve 10 disconnects motor 15 is touched in fracture, causes test to stop).
After off-test, to anticlockwise, add unloading handwheel 27, drive threaded mandrel 26 to do motion vertically upward, drive register pin 25 to move up and depart from link rod plate 7, realize the unloading of moment.Press again the reset key of controlling in button 17, restart test, also can, according to a upper test figure, can carry out sample cycle test or sample comparison test.
Claims (9)
1. a rotary bending tester, is characterized in that: it includes the support of bottom and the fuselage that support top arranges, and its cabinet is characterized as the casing of horizontal framed structure; Fuselage right side arranges electrical equipment and controls button sum counter, in body upper symmetric position, two cover left support abutment and right support abutments are set, left and right bearing top is provided with left beam barrel assembly and right beam barrel assembly, the right beam barrel assembly other end is connected with motor by motor connecting link, motor front end arranges connecting sleeve below magnetic force induction device is set, and magnetic force induction device is connected with counter; Left and right beam barrel assembly both sides arrange clip assembly, and clip assembly is connected with web joint, and web joint is connected with threaded mandrel by register pin, and threaded mandrel is provided with passive conical gear, and passive conical gear is connected with a joggle with the driving bevel gear being arranged on handwheel; Threaded mandrel lower end with by suspension ring, be connected with lever, lever is connected with fuselage lower surface by lever holder, the right-hand member of lever arranges suspension ring, suspension ring are connected with counterweight connecting rod, counterweight connecting rod is provided with counterweight; The left end of lever arranges leveling thallium.
2. a kind of rotary bending tester according to claim 1, is characterized in that: described equipment horizontal type structure.
3. a kind of rotary bending tester according to claim 1, is characterized in that: described equipment is lever moment structure.
4. a kind of rotary bending tester according to claim 1, is characterized in that: in the cabinet of described equipment, be provided with electric control system.
5. a kind of rotary bending tester according to claim 1, is characterized in that: the motor of described equipment is variable-frequency motor, and output speed is that 900r/min is to 10000r/min.
6. a kind of rotary bending tester according to claim 1, is characterized in that: in described equipment, left support abutment and right support abutment are respectively 2 covers, with fuselage be Split type structure.
7. a kind of rotary bending tester according to claim 1, is characterized in that: in described equipment, in left beam barrel assembly and right beam barrel assembly, be provided with detachable sample holding device.
8. a kind of rotary bending tester according to claim 1, is characterized in that: the loading and unloading body of testing moment in described equipment is spiral gear engaged transmission mode.
9. a kind of rotary bending tester according to claim 1, is characterized in that: in described equipment, magnetic force induction device is inductive proximity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027039.2A CN103712868A (en) | 2014-01-22 | 2014-01-22 | Rotating bending fatigue testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410027039.2A CN103712868A (en) | 2014-01-22 | 2014-01-22 | Rotating bending fatigue testing machine |
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| CN103712868A true CN103712868A (en) | 2014-04-09 |
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| CN201410027039.2A Pending CN103712868A (en) | 2014-01-22 | 2014-01-22 | Rotating bending fatigue testing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525591A (en) * | 2016-11-30 | 2017-03-22 | 西南交通大学 | Material damage tolerance detection device based on rotating bending fatigue as well as detection method |
| CN108168877A (en) * | 2017-12-14 | 2018-06-15 | 中国航发沈阳发动机研究所 | A kind of gear tooth bending fatigue testing device |
| WO2018171813A1 (en) * | 2017-03-23 | 2018-09-27 | 天王电子（深圳）有限公司 | Watch use reliability tester and test method thereof |
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| CN101236148A (en) * | 2008-03-06 | 2008-08-06 | 上海交通大学 | Rotary bending fatigue tester |
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| CN102866066A (en) * | 2012-09-17 | 2013-01-09 | 中国科学院力学研究所 | Rotating bending fatigue test device and method with axial load control function |
| CN203350139U (en) * | 2013-08-06 | 2013-12-18 | 四川大学 | High temperature rotating bending fatigue crack growth measurement device |
| CN203785977U (en) * | 2014-01-22 | 2014-08-20 | 宁夏青山试验机有限公司 | Rotating bending fatigue tester |
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2014
- 2014-01-22 CN CN201410027039.2A patent/CN103712868A/en active Pending
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| CN87210621U (en) * | 1987-10-09 | 1988-03-30 | 东北工学院 | Rotating bending fatigue tester with superimposed load |
| CN101236148A (en) * | 2008-03-06 | 2008-08-06 | 上海交通大学 | Rotary bending fatigue tester |
| CN101290279A (en) * | 2008-03-27 | 2008-10-22 | 上海交通大学 | Frequency conversion rotation bending fatigue tester |
| CN102866066A (en) * | 2012-09-17 | 2013-01-09 | 中国科学院力学研究所 | Rotating bending fatigue test device and method with axial load control function |
| CN203350139U (en) * | 2013-08-06 | 2013-12-18 | 四川大学 | High temperature rotating bending fatigue crack growth measurement device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525591A (en) * | 2016-11-30 | 2017-03-22 | 西南交通大学 | Material damage tolerance detection device based on rotating bending fatigue as well as detection method |
| CN106525591B (en) * | 2016-11-30 | 2023-09-12 | 西南交通大学 | Material damage tolerance detection device and method based on rotational bending fatigue |
| WO2018171813A1 (en) * | 2017-03-23 | 2018-09-27 | 天王电子（深圳）有限公司 | Watch use reliability tester and test method thereof |
| CN108168877A (en) * | 2017-12-14 | 2018-06-15 | 中国航发沈阳发动机研究所 | A kind of gear tooth bending fatigue testing device |
| CN108168877B (en) * | 2017-12-14 | 2019-07-19 | 中国航发沈阳发动机研究所 | A kind of gear tooth bending fatigue testing device |
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Application publication date: 20140409 |