CN101364354B - Mechanics synthetic experiment bench for rotary member - Google Patents
Mechanics synthetic experiment bench for rotary member Download PDFInfo
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- CN101364354B CN101364354B CN2008100795215A CN200810079521A CN101364354B CN 101364354 B CN101364354 B CN 101364354B CN 2008100795215 A CN2008100795215 A CN 2008100795215A CN 200810079521 A CN200810079521 A CN 200810079521A CN 101364354 B CN101364354 B CN 101364354B
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Abstract
The invention relates to an integrated mechanic experiment table for rotary components, which is characterized in that a base plate is arranged on the playing surface of a table rack, and a pure torsion device, a torque static calibration device, a circular shaft twisting device, an inertia ring torsional vibration device, a friction brake device, a brake moment measurement device and a quality disk counterweight device are sequentially installed on the base plate. The integrated mechanic experiment table can carry out nine experiments of rotary components, including: a torsional stress testing experiment, a twisted combined shaft stress testing experiment, a torque sensor calibration experiment, a torsional vibration experiment, a friction brake experiment, a torsion vibration damping experiment, a wireless stress remote testing experiment, a moving load coefficient measurement experiment and a transient strain testing experiment. The integrated mechanic experiment table is the integrated experimental equipment with the advantages of strong functions and high cost performance. The equipment can also be used for calibrating engineering testing instruments, simulating and studying torsional vibration measuring and testing techniques in engineering, and the like.
Description
Technical field
The invention belongs to Experiments of Machanics equipment, particularly relate to a kind of test teaching integrated testing table that is used for courses such as institution of higher learning's fundamental mechanics.
Background technology
The cultivation to student's the ability of practice and initiative spirit has been strengthened in higher education at present, needs the experimental facilities of better function in the Experiments of Machanics teaching, offers requirements comprehensive, the Experiments of Machanics of research property to satisfy.Experiments of Machanics platform on the present market, the comprehensive experiment table that rotating member is not carried out stress test and research.
Summary of the invention
The objective of the invention is to, requirement according to domestic fundamental mechanics experimental teaching, satisfy and to offer comprehensive, designability and novelty experiment needs, for the Experiments of Machanics teaching provides a kind of compact conformation that has, comprehensive function is strong, satisfy Experiments of Machanics test and research requirement, the mechanics synthetic experiment bench for rotary member that the ratio of performance to price is high simultaneously.
The present invention is achieved through the following technical solutions:
A kind of mechanics synthetic experiment bench for rotary member has a stand, and buncher is installed below stand, and by belt gear, the big belt wheel of the experiment table on the table top of drive stand rotates, and is being added with protective cover on big belt wheel; It is characterized in that: on the table top of described stand substrate plate is housed, pure torsion device, moment of torsion static calibration device, circular shaft bending device, inertia rings torsional oscillation device, friction stopping device, braking moment determinator and quality dish counter weight device are installed on the substrate plate successively, wherein:
Described pure torsion device is: about on the left part of the substrate plate on the table top of described stand two bearing spiders are housed, be respectively left side bearing spider and right side bearing spider, adorn coupking shaft in the bearing of left side bearing spider, the left end of coupking shaft is connected with big belt wheel, the right-hand member of coupking shaft is connected with the tubular shaft left end by projection, the tubular shaft right-hand member is connected with bending circular shaft left end with bolt by flange hole, and the bending circular shaft is installed in the bearing of right side bearing spider, the left and right two ends of tubular shaft are reversed for pure by bearings; Adhering resistance strainometer on tubular shaft;
Described moment of torsion static calibration device is: in described pure torsion device, rotate if stop buncher, use bolt to be connected with the hole of left side bearing spider at the right-hand member of coupking shaft by flange hole, make the tubular shaft left end fix; The tubular shaft right-hand member is connected with bending circular shaft left end with toggle with bolt by flange hole, places counterweight in the end of toggle, uses the static stress of strainometer test tubular shaft, realizes the quiet demarcation of the moment of torsion of tubular shaft;
Described circular shaft bending device is: the described right side bearing spider on the substrate plate on the described table top, the bending circular shaft is installed in the bearing of right side bearing spider, bending circular shaft left end is by bearings, and be connected with the tubular shaft right-hand member, bending circular shaft right-hand member is adorned left friction pulley, bending circular shaft right-hand member cantilever belongs to the bending composite deformation, adhering resistance strainometer on the bending circular shaft;
Described inertia rings torsional oscillation device is: on described bending circular shaft inertia rings is installed, inertia rings is made up of ring and inertia outer shroud in the disc beam connection inertia, disc beam one end embeds in the groove of ring in the inertia, uses bolt, and the disc beam other end is connected with the inertia outer shroud with the flute profile bolt; Inertia outer shroud induction torsional oscillation makes the distortion of disc beam, adhering resistance strainometer on the disc beam;
Described friction stopping device is: adorn two bearing spiders about on the right part of the substrate plate on the described table top, the difference clutch shaft bearing bearing and second bearing spider, these two bearing spiders are supporting friction mandrel, the friction mandrel left end is adorned right friction pulley, right friction pulley is connected with friction mandrel with pin, and can move vertically; And the friction mandrel right-hand member connects semi-girder, fixes through pull bar and table top, and right friction pulley can not be rotated; Adorn left friction pulley at bending circular shaft right-hand member, fix with bolt and bending circular shaft, left side friction pulley rotates with the bending circular shaft, with bolt top spiral shell seat, the top swivel nut is threaded with top spiral shell seat on the clutch shaft bearing bearing, rotates the top swivel nut, this top swivel nut can be moved vertically, by moving axially of top swivel nut, promote right friction pulley and be moved to the left, and contact with left friction pulley; Apply normal pressure for two friction pulleys by the top swivel nut, produce moment of friction and make the rolling brake of bending circular shaft;
Described braking moment determinator is: connect semi-girder at described friction mandrel right-hand member with bolt, semi-girder is fixed through described pull bar and table top, when the friction mandrel desire is rotated, make semi-girder flexural deformation, adhering resistance strainometer on the semi-girder, test its strain with strainometer, to calculate the size of braking moment;
Described quality dish counter weight device is: at described friction mandrel right-hand member packing quality dish, use bolt; When removing semi-girder, when friction catch, its friction mandrel rotates with tubular shaft, by changing the quality dish of different counterweights, changes the rotation operating mode of tubular shaft, realizes different torsional oscillation tests.
The present invention compares with existing skill wood, has the following advantages and beneficial effect:
Because this experiment table passes through the application of pure torsion device, the moment of torsion static calibration device, circular shaft bending device, inertia rings torsional oscillation device, friction stopping device, braking moment determinator and quality dish counter weight device, can carry out:
Nine sports such as revolving member distorting stress test experiments, the experiment of bending built-up shaft stress test, torque sensor calibration experiment, twisting vibration experiment, friction catch experiment, torsion damping and weakening experiment, the experiment of stress wireless telemetering, the experiment of live load coefficient determination, transient strain test experiments experiment, it is a kind of comprehensive experiment equipment, utilize this equipment can demarcate the engineering test instrument, torsional oscillation measuring technology in simulation and the research engineering.Therefore, the present invention is strong with its functions of the equipments, and the characteristics that the ratio of performance to price is high can play an important role to Experiments of Machanics teaching and engineering test research.
Description of drawings
Fig. 1 is a kind of front view of mechanics synthetic experiment bench for rotary member;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the caliberating device synoptic diagram;
Fig. 4 is a torsional oscillation device synoptic diagram;
Fig. 5 is a braking moment determinator synoptic diagram;
Embodiment
Further the present invention is elaborated below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of mechanics synthetic experiment bench for rotary member of the present invention is equipped with pure torsion device A, moment of torsion static calibration device B, circular shaft bending device C, inertia rings torsional oscillation device D, friction stopping device E, braking moment determinator F and quality dish counter weight device G from left to right successively on the table top of stand 1.
The kinematic train of a kind of mechanics synthetic experiment bench for rotary member of the present invention: buncher 2 is installed below stand, when motor rotates, pass through belt gear, drive big belt wheel 6 rotations on the table top, big belt wheel is connected by bolt 4 with coupling shaft 10, and coupling shaft is installed in the transverse bearing 8 of bearing spider 7, and the coupling shaft right-hand member is connected with tubular shaft 11 left ends by projection, the tubular shaft right-hand member is connected with bending circular shaft 14 left ends with bolt 12 by flange hole.The bending circular shaft is installed in the transverse bearing 15 of bearing spider 16, makes in the inertia ring 21 and axle fixing with pin 22 on the bending circular shaft, connects ring and inertia outer shroud 19 in the inertia by four disc beams 20.Disc beam one end embeds in the groove of ring 21 in the inertia, uses bolt, and the disc beam other end is connected with the inertia outer shroud with flute profile bolt 18.Bending circular shaft right-hand member is connected with left friction pulley 26 with bolt 25, and a bearing spider 23 is arranged in the left side of left friction pulley, and built-in shaft is to bearing 24, in order to balancing axial pressure.Right part at the table top substrate plate is installed two bearing spiders 32 and 35, bearing 33 and 36 in this two bearing is supporting friction mandrel 34, and wherein, it is by the bearing holder (housing, cover) 37 that is contained on the axle that the right side of friction mandrel is supported, with pin 38 with the axle be connected, then with Bearing Installation on bearing holder (housing, cover).The friction mandrel left end is installed right friction pulley 27, and this is taken turns with pin 28 and is connected with axle, and can move vertically.And the friction mandrel right-hand member connects semi-girder 39, and is fixing with table top 1 through pull bar 40, and right friction pulley can not be rotated.Use fixedly top spiral shell seat 30 of bolt 31 on bearing spider 32, top swivel nut 29 is threaded with top spiral shell seat, rotates the top swivel nut, and it can move vertically, by moving axially of top swivel nut, promotes right friction pulley 27 and is moved to the left, and contact with left friction pulley.Apply normal pressure for two friction pulleys by the top swivel nut, produce moment of friction and make the rolling brake of axle.At friction mandrel right part installation quality dish 41, fixing with bolt 42.Hence one can see that, and motor rotates drive tubular shaft, bending circular shaft, inertia outer shroud and left friction pulley and rotates together, can realize braking with right friction pulley.
As depicted in figs. 1 and 2, pure torsion device A: two bearing spiders 7 and 16 are installed on the substrate plate 3 of table top 1, and the left side is porose bearing spider 7, and coupking shaft 10 is installed in the bearing 8 of this bearing, the left end of coupking shaft is installed big belt wheel 6, and big belt wheel is fixing with bolt 4 with axle.The right-hand member of axle is connected with tubular shaft 11 left ends by projection, and the tubular shaft right-hand member is connected with bending circular shaft 14 left ends with bolt 12 by flange hole.And the bending circular shaft is installed in the bearing 15 of bearing spider 16, so tubular shaft two ends genus bearings, realizes pure reversing.The structure of this tubular shaft 11 is, left side section is a four-bar, and right section is the thin-walled cartridge type, utilizes this structure can test distorting stress by strain ga(u)ge.
As Fig. 1, Fig. 2 and shown in Figure 3, moment of torsion static calibration device B: above-mentioned pure turning round in the device, rotate if stop motor 2,, be connected with hole on the porose bearing spider 7 with bolt 9 by flange hole at the right-hand member of coupking shaft 10, tubular shaft 11 left ends that make are fixed.The tubular shaft right-hand member is connected with bending circular shaft 14 left ends with toggle 13 with bolt 12 by flange hole, loads with counterweight in the end of toggle 13, uses the static stress of strainometer test tubular shaft, realizes the quiet demarcation of moment of torsion.
Circular shaft bending device C: the bearing spider 16 on the substrate plate 3 of table top 1, bending circular shaft 14 is installed in the bearing 15 of bearing spider 16, bending circular shaft left end supports by bearing 15, and is connected with tubular shaft 11, its right-hand member is adorned left friction pulley 26, and this right part cantilever belongs to the bending composite deformation.Test its stress with strainometer.
As Fig. 1, Fig. 2 and shown in Figure 4, inertia rings torsional oscillation device D: on bending circular shaft 14, install in the inertia and encircle 21, connect ring 21 and inertia outer shroud 19 in the inertia by four disc beams 20.Disc beam one end embeds in the groove of ring 21 in the inertia, uses bolt, and the disc beam other end is connected with inertia outer shroud 19 with flute profile bolt 18.When the axle rotation, inertia outer shroud induction torsional oscillation makes 20 distortion of disc beam thus, tests its strain with strainometer, thus the axle twisting vibration parameter of surveying.
As depicted in figs. 1 and 2, friction stopping device E: the right part of the substrate plate 3 on table top 1 is installed two bearing spiders 32 and 35, and this two seat supports friction mandrel 34, and the friction mandrel left end is installed right friction pulley 27, this is taken turns with pin 28 and is connected with axle 34, and can move vertically.And the friction mandrel right-hand member connects semi-girder 39, and is fixing with table top 1 through pull bar 40, and right friction pulley can not be rotated.At bending circular shaft 14 right-hand members left friction pulley 26 is installed, fixing with axle 14 with bolt 25, this is taken turns with axle and rotates.Use fixedly top spiral shell seat 30 of bolt 31 on a bearing spider 32 therein, top swivel nut 29 is threaded with top spiral shell seat 30, rotates top swivel nut 29, it can move vertically, by moving axially of top swivel nut, promote right friction pulley 27 and be moved to the left, and contact with left friction pulley 26.Apply normal pressure for two friction pulleys by the top swivel nut, produce moment of friction and make the rotation of axle reach braking.In order to prevent that normal pressure from along axle 14 transmission, influencing rotating property, a bearing seat 23 is installed on the left side of left friction pulley 26, cod 24 wherein is housed, offset normal pressure by this seat, and limit moving axially of bending circular shaft 14.
As Fig. 1, Fig. 2 and shown in Figure 5, braking moment determinator F: connect semi-girder 39 with bolt 43 at friction mandrel 34 right-hand members, semi-girder is fixing with table top 1 through pull bar 40, when two friction pulleys 26 when 27 contact, make when the friction mandrel desire is rotated, then semi-girder flexural deformation is tested its strain with strainometer, thereby calculates the size of braking moment.
As depicted in figs. 1 and 2, quality dish counter weight device G:, fixing with bolt 42 at friction mandrel 34 right-hand member installation quality dishes 41.When removing semi-girder 39, when friction catch, its friction mandrel rotates with tubular shaft 11, by changing different quality dish counterweights, changes the rotation operating mode of axle, realizes different torsional oscillation tests.
Application of the present invention:
Respectively test adhering resistance strainometer on the test specimen at the disc beam of the tubular shaft 11 of experiment table, bending circular shaft, inertia rings and semi-girder etc., strainometer is wired in the remote measurement transmitter module that is contained on the axle, the employing wireless telegauge, measure the dynamic strain waveform of each measuring point, the wireless telemetering instrument outputs signal to computing machine, and use a computer and carry out data processing, the analytical test result.Show by Computer Processing, the softpanel operation, each passage automaticallyes switch, the bridge circuit self-poise.Be provided with scanning sample, grab sampling, decide the load sampling, real time data, curve display, test data both can be shown as data list, also can be shown as figure, can realize the digital test of wireless telemetering.
The present invention collects pure reversing for Experiments of Machanics provide a kind of multi-functional wireless telemetering experiment porch, the quiet demarcation of moment of torsion, the circular shaft bending, inertia rings torsional oscillation, friction catch, braking moment is measured and seven kinds of devices of quality dish counterweight are one, is combined into the experimental facilities of composite type.
Claims (2)
1. a mechanics synthetic experiment bench for rotary member has a stand, and buncher is installed below stand, and by belt gear, the big belt wheel of the experiment table on the table top of drive stand rotates, and is being added with protective cover on big belt wheel; It is characterized in that: on the table top of described stand substrate plate is housed, pure torsion device, moment of torsion static calibration device, circular shaft bending device, inertia rings torsional oscillation device, friction stopping device, braking moment determinator and quality dish counter weight device are installed on the substrate plate successively, wherein:
Described pure torsion device is: about on the left part of the substrate plate on the table top of described stand two bearing spiders are housed, be respectively left side bearing spider and right side bearing spider, adorn coupking shaft in the bearing of left side bearing spider, the left end of coupking shaft is connected with big belt wheel, the right-hand member of coupking shaft is connected with the tubular shaft left end by projection, the tubular shaft right-hand member is connected with bending circular shaft left end with bolt by flange hole, and the bending circular shaft is installed in the bearing of right side bearing spider, the left and right two ends of tubular shaft are reversed for pure by bearings; Adhering resistance strainometer on tubular shaft;
Described moment of torsion static calibration device is: in described pure torsion device, rotate if stop buncher, use bolt to be connected with the hole of left side bearing spider at the right-hand member of coupking shaft by flange hole, make the tubular shaft left end fix; The tubular shaft right-hand member is connected with bending circular shaft left end with toggle with bolt by flange hole, places counterweight in the end of toggle, uses the static stress of strainometer test tubular shaft, realizes the quiet demarcation of the moment of torsion of tubular shaft;
Described circular shaft bending device is: the described right side bearing spider on the substrate plate on the described table top, the bending circular shaft is installed in the bearing of right side bearing spider, bending circular shaft left end is by bearings, and be connected with the tubular shaft right-hand member, bending circular shaft right-hand member is adorned left friction pulley, bending circular shaft right-hand member cantilever belongs to the bending composite deformation, adhering resistance strainometer on the bending circular shaft;
Described inertia rings torsional oscillation device is: on described bending circular shaft inertia rings is installed, inertia rings is made up of ring and inertia outer shroud in the disc beam connection inertia, disc beam one end embeds in the groove of ring in the inertia, uses bolt, and the disc beam other end is connected with the inertia outer shroud with the flute profile bolt; Inertia outer shroud induction torsional oscillation makes the distortion of disc beam, adhering resistance strainometer on the disc beam;
Described friction stopping device is: adorn two bearing spiders about on the right part of the substrate plate on the described table top, the difference clutch shaft bearing bearing and second bearing spider, these two bearing spiders are supporting friction mandrel, the friction mandrel left end is adorned right friction pulley, right friction pulley is connected with friction mandrel with pin, and can move vertically; And the friction mandrel right-hand member connects semi-girder, fixes through pull bar and table top, and right friction pulley can not be rotated; Adorn left friction pulley at bending circular shaft right-hand member, fix with bolt and bending circular shaft, left side friction pulley rotates with the bending circular shaft, with bolt top spiral shell seat, the top swivel nut is threaded with top spiral shell seat on the clutch shaft bearing bearing, rotates the top swivel nut, this top swivel nut can be moved vertically, by moving axially of top swivel nut, promote right friction pulley and be moved to the left, and contact with left friction pulley; Apply normal pressure for two friction pulleys by the top swivel nut, produce moment of friction and make the rolling brake of bending circular shaft;
Described braking moment determinator is: connect semi-girder at described friction mandrel right-hand member with bolt, semi-girder is fixed through described pull bar and table top, when the friction mandrel desire is rotated, make semi-girder flexural deformation, adhering resistance strainometer on the semi-girder, test its strain with strainometer, to calculate the size of braking moment;
Described quality dish counter weight device is: at described friction mandrel right-hand member packing quality dish, use bolt; When removing semi-girder, when friction catch, its friction mandrel rotates with tubular shaft, by changing the quality dish of different counterweights, changes the rotation operating mode of tubular shaft, realizes different torsional oscillation tests.
2. a kind of mechanics synthetic experiment bench for rotary member according to claim 1 is characterized in that: the left side section of described tubular shaft is a four-bar, and right section is the thin-walled cartridge type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100795215A CN101364354B (en) | 2008-09-28 | 2008-09-28 | Mechanics synthetic experiment bench for rotary member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100795215A CN101364354B (en) | 2008-09-28 | 2008-09-28 | Mechanics synthetic experiment bench for rotary member |
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| Publication Number | Publication Date |
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| CN101364354A CN101364354A (en) | 2009-02-11 |
| CN101364354B true CN101364354B (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100795215A Expired - Fee Related CN101364354B (en) | 2008-09-28 | 2008-09-28 | Mechanics synthetic experiment bench for rotary member |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545790B (en) * | 2009-04-27 | 2011-05-11 | 浙江大学 | System for testing rotation and vibration performance of inertia device |
| CN102636310B (en) * | 2012-04-11 | 2014-09-03 | 上海市特种设备监督检验技术研究院 | Static braking torque test bed for brake |
| CN104134390B (en) * | 2014-07-18 | 2016-10-05 | 华南理工大学 | A kind of Kennedy-Aronhold the-orem verification platform and verification method thereof |
| CN104992612B (en) * | 2015-08-03 | 2017-12-12 | 太原理工大学 | V belt translation characteristic parameter teaching mode demonstrator |
| CN105628357A (en) * | 2015-12-22 | 2016-06-01 | 浙江海洋学院 | Tail shaft detection experiment device with counterweight plate |
| CN106205302B (en) * | 2016-09-23 | 2018-07-24 | 大连理工大学 | A kind of torque application device for structural mechanics experiment |
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2008
- 2008-09-28 CN CN2008100795215A patent/CN101364354B/en not_active Expired - Fee Related
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Granted publication date: 20100811 Termination date: 20110928 |