CN104019989A - Lever power-driven loading type rolling contact fatigue test machine - Google Patents
Lever power-driven loading type rolling contact fatigue test machine Download PDFInfo
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- CN104019989A CN104019989A CN201410246735.2A CN201410246735A CN104019989A CN 104019989 A CN104019989 A CN 104019989A CN 201410246735 A CN201410246735 A CN 201410246735A CN 104019989 A CN104019989 A CN 104019989A
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Abstract
The invention discloses a lever power-driven loading type rolling contact fatigue test machine which comprises a machine body, a loading system, a transmission system, a lubrication system and an information acquisition control system. The lever power-driven loading type rolling contact fatigue test machine is characterized in that the loading system comprises a stepping motor, a ball screw, a weight, a weight tray, a jack fixing frame and a power-driven jack. The output shaft of the stepping motor is connected with the ball screw through a plum coupling, the power-driven jack is arranged in the jack fixing frame, the weight is mounted on the weight tray and controlled by the stepping motor to move on a lever, and loads are loaded to a test piece automatically through the self weight of the weight and the principle of lever amplification. The lever power-driven loading type rolling contact fatigue test machine can implement loading of variable loads on a bearing and detect key parameters of contact fatigue of materials, energy and electricity are saved, cost is lowered, and economic benefits are increased.
Description
Technical field
The invention belongs to test mechanical field, relate to the electronic loaded type rolling contact fatigue-testing machine of a kind of lever.
Background technology
At present, the quality of bearing is restricting the development of China's high-speed overload machinery, especially contact fatigue, it is one of topmost failure mode of rolling bearing, the high speed contact fatigue test machine of therefore, accurately simulating actual working environment becomes the selection of high speed roller bearing material, structural design and the requisite means of practical application.
In prior art, just carrying out " high speed scroll contact fatigue test machine " (number of patent application: ZL201310272071.2) disclosed high speed scroll contact fatigue test machine of patented claim in China, it is the specialized equipment that carries out rolling contact fatigue-testing, the load mode adopting is that electric cylinder loads, though implementing variable load to bearing, it loads, the key parameter of material contact fatigue is realized and being detected, but because the load mode of electric cylinder is that workpiece is directly loaded, large to power consumption like this, cause cost higher, affect economic benefit.
Summary of the invention
The object of the invention is in order to overcome prior art above shortcomings, provide a kind of lever electronic loaded type rolling contact fatigue-testing machine, can not only implement variable load to bearing loads and the key parameter of material contact fatigue is realized and being detected, and saving electric energy, reduce costs, increase economic efficiency.
The technical solution adopted for the present invention to solve the technical problems is as follows:
The electronic loaded type rolling contact fatigue-testing machine of a kind of lever, comprises body, kinematic train, loading system, lubricating system and information acquisition system, wherein:
Body comprises base, support plate, switch board; Support plate and switch board are fixed on base, fixedly mount main spindle box erecting frame on support plate, are fixedly installed two root posts between main spindle box erecting frame and support plate, on the semi-girder of main spindle box erecting frame, fixedly mount electric machine support.
Kinematic train comprises gib screw, drive mandrel, main shaft, main spindle box, driven pulley, cooling ring, ceramic sleeve, high-speed main spindle motor, driving pulley, Timing Belt; High-speed main spindle motor is fixed on the side of electric machine support, and driving pulley is fixedly mounted on high-speed main spindle motor output shaft, and high-speed main spindle motor is by driving pulley, and Timing Belt is in transmission connection with the driven pulley that is fixed on main shaft upper end; Main shaft is arranged in main spindle box, main spindle box is fixed on main spindle box erecting frame by end flange, drive mandrel upper end is connected with main shaft lower end threaded hole by screw thread, cooling ring inner ring is connected by clearance fit with drive mandrel respectively with ceramic sleeve inner ring, drive mandrel lower end is being connected and is being gone up test specimen blowout patche by clearance fit, and ceramic sleeve and the gib screw being connected in the threaded hole of drive mandrel lower end are realized the axial restraint to upper test specimen blowout patche.
Information acquisition system comprises pressure transducer support, pressure transducer, guide rail, support flange, acceleration transducer, lower test specimen seat, temperature sensor, pulling force sensor support, pulling force sensor, Hall switch, Hall switch support, tinsel; Pressure transducer is fixed on pressure transducer support, and pressure transducer support is connected with support flange by two guide rails, and pressure transducer top contacts with support flange lower surface boss; Temperature sensor is placed in the through hole of lower test specimen seat, and lower test specimen seat upper end boss outer circumference surface is installed with lower test specimen blowout patche by clearance fit, and the lower surface of lower test specimen blowout patche contacts with temperature sensor; Acceleration transducer is fixed on lower test specimen seat lower surface; Pulling force sensor is arranged on pulling force sensor support, and pulling force sensor support is fixed on main spindle box erecting frame, and lower test specimen seat is connected with pulling force sensor by tinsel; On the lower surface of lower test specimen seat, fixedly mount calibrate AE sensor; Hall switch is arranged on Hall switch support, and Hall switch support is fixed on the semi-girder of main spindle box erecting frame, and the axis of Hall switch and the axis of main shaft are perpendicular; Each road signal passes to computing machine processing by data adapter above.
Lubricating system comprises atomizer, and atomizer is connected with Lubricating pump station by oil-in, pipeline, the flowrate control valve of lower test specimen seat, and atomizer is connected with lower test specimen seat by screw thread.
Loading system comprises round nut, spherical washer, rolling guide support, connecting rod, slide block, cramp bar, linear bearing, linear axis bearing, bolster, thrust ball bearing, heat dissipating ring, oil scraper ring, counterweight, screw rod, contiguous block, feed screw nut, ball-screw, bearing seat, stepper motor, plum coupling, jacking header frame, motor-driven jack, lifting jack fixed mount, bearing support, cylindrical pin I, cylinder roller bearing, weight tray, rolling slide block, rolling guide, stepper motor support, cylindrical pin II, lifting jack fixed mount is fixed on base lower shoe, motor-driven jack is placed in lifting jack fixed mount, jacking header frame lower end is connected with motor-driven jack, and cylindrical pin I is arranged on jacking header frame circular hole, and cylindrical pin I is installed with cylinder roller bearing by interference fit, stepper motor is fixed on stepper motor support, and stepper motor support is fixed on the base plate of rolling guide support, stepper motor output shaft is connected with ball-screw one end by plum coupling, and ball-screw is axially fixed in bearing seat, and bearing seat is fixed on the base plate of rolling guide support, ball-screw is connected with feed screw nut by threaded engagement, and feed screw nut is fixed on contiguous block by end flange, and contiguous block is fixed on weight tray below, and counterweight is fixedly mounted on weight tray by four screw rods and four nuts, on rolling guide support, fixedly mounting a pair of rolling guide, rolling slide block top is fixed on weight tray below, and rolling slide block bottom is arranged on rolling guide, and can move freely along rolling guide, a pair of bearing support upper end circular hole is flexibly connected with rolling guide support footing circular hole by cylindrical pin II, and bearing support lower end is fixed on base lower shoe, connecting rod two ends are hinged by a pair of spherical washer and rolling guide support and slide block respectively, and use respectively round nut axial restraint, cramp bar is fixed between slide block and pressure transducer support, support flange is fixed on bolster lower end, and support flange upper end boss is connected by interference fit with bolster lower end axis hole, bolster also can move freely vertically through the endoporus of a pair of linear bearing, linear bearing is fixed in hole, linear axis bearing two ends by end flange respectively, linear axis bearing is fixed on rack support plate by flange, bolster upper end installed thrust ball bearing, lower test specimen seat lower end boss is connected with thrust ball bearing endoporus by interference fit, heat dissipating ring is fixed on lower test specimen seat by transition fit, between lower test specimen blowout patche and upper test specimen blowout patche, be provided with rolling body, and rolling body is connecting respectively up and down goes up test specimen blowout patche and lower test specimen blowout patche, oil scraper ring is fixed on the outer ring of lower test specimen seat.
Described main spindle box erecting frame semi-girder lower end is being fixedly connected with two security window upper rails; Described support plate upper surface is being fixedly connected with two security window lower guideways, and is placing removably security window in the groove of security window upper rail and security window lower guideway.Adopt this structure, be convenient to ensure operating personnel's personal safety.
The invention has the beneficial effects as follows: the present invention can not only implement variable load to bearing and load and the key parameter of material contact fatigue is realized and being detected, in addition, the present invention utilizes the movement of step motor control counterweight on lever, and by own wt and the lever amplification principle of counterweight, load is loaded into test specimen automatically, so just, save electric energy, reduce costs, increase economic efficiency.
Brief description of the drawings
Fig. 1 is the front view of the electronic loaded type rolling contact fatigue-testing machine of lever.
Fig. 2 is the left view of the electronic loaded type rolling contact fatigue-testing machine of lever (while dismantling security window).
Fig. 3 is the left view of the electronic loaded type rolling contact fatigue-testing machine of lever (while not dismantling security window).
Fig. 4 is the vertical view of the electronic loaded type rolling contact fatigue-testing machine of lever.
Fig. 5 is loading system structural representation.
Fig. 6 shows the connection of kinematic train and loading system.
Fig. 7 is the enlarged drawing corresponding to the place of A shown in Fig. 3.
Fig. 8 is the enlarged drawing corresponding to the place of B shown in Fig. 5.
Fig. 9 is the enlarged drawing corresponding to the place of C shown in Fig. 6.
In above-mentioned accompanying drawing, 1, base, 2, round nut, 3, spherical washer, 4, rolling guide support, 5, connecting rod, 6, slide block, 7, cramp bar, 8, pressure transducer support, 9, pressure transducer, 10, guide rod, 11, support flange, 12, linear bearing, 13, linear axis bearing, 14, support plate, 15, bolster, 16, acceleration transducer, 17, thrust ball bearing, 18, lower test specimen seat, 19, temperature sensor, 20, heat dissipating ring, 21, atomizer, 22, gib screw, 23, drive mandrel, 24, main shaft, 25, main spindle box, 26, driven pulley, 27, cooling ring, 28, ceramic sleeve, 29, oil scraper ring, 30, calibrate AE sensor, 31, switch board, 32, counterweight, 33, screw rod, 34, contiguous block, 35, feed screw nut, 36, ball-screw, 37, bearing seat, 38, stepper motor, 39, plum coupling, 40, jacking header frame, 41, motor-driven jack, 42, lifting jack fixed mount, 43, bearing support, 44, cylindrical pin I, 45, cylinder roller bearing, 46, main spindle box erecting frame, 47, pulling force sensor support, 48, pulling force sensor, 49, high-speed main spindle motor, 50, electric machine support, 51, driving pulley, 52, Timing Belt, 53, Hall switch, 54, Hall switch support, 55, column, 56, tinsel, 57, weight tray, 58, rolling slide block, 59, rolling guide, 60, upper test specimen blowout patche, 61, rolling body, 62, lower test specimen blowout patche, 63, stepper motor support, 64, security window upper rail, 65, security window, 66, security window lower guideway, 67, cylindrical pin II.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1, Fig. 2 and Fig. 3 are the structural representations of the electronic loaded type rolling contact fatigue-testing machine of lever disclosed by the invention.From Fig. 1 to Fig. 9, support plate 14 and switch board 31 are fixed on base 1, on support plate 14, fixedly mount main spindle box erecting frame 46, between main spindle box erecting frame 46 and support plate 14, be fixedly installed two root posts 55, on the semi-girder of main spindle box erecting frame 46, fixedly mount electric machine support 50.
High-speed main spindle motor 49 is fixed on the side of electric machine support 50, and driving pulley 51 is fixedly mounted on high-speed main spindle motor 49 output shafts, and high-speed main spindle motor 49 is by driving pulley 51, and Timing Belt 52 is in transmission connection with the driven pulley 26 that is fixed on main shaft 24 upper ends; Main shaft 24 is arranged in main spindle box 25, main spindle box 25 is fixed on main spindle box erecting frame 46 by end flange, drive mandrel 23 upper ends are connected with main shaft 24 lower end threaded holes by screw thread, cooling ring 27 inner rings are connected by clearance fit with drive mandrel 23 respectively with ceramic sleeve 28 inner rings, drive mandrel 23 lower ends are being connected and are being gone up test specimen blowout patche 60 by clearance fit, and ceramic sleeve 28 and the gib screw 22 being connected in drive mandrel 23 lower end threaded holes are realized the axial restraint to upper test specimen blowout patche 60.
Pressure transducer 9 is fixed on pressure transducer support 8, and pressure transducer support 8 is connected with support flange 11 by two guide rails 10, and pressure transducer 9 tops contact with support flange 11 lower surface boss; Temperature sensor 19 is placed in the through hole of lower test specimen seat 18, and lower test specimen seat 18 upper end boss outer circumference surfaces are installed with lower test specimen blowout patche 62 by clearance fit, and the lower surface of lower test specimen blowout patche 62 contacts with temperature sensor 19; Acceleration transducer 16 is fixed on lower test specimen seat 18 lower surfaces; Pulling force sensor 48 is arranged on pulling force sensor support 47, and pulling force sensor support 47 is fixed on main spindle box erecting frame 46, and lower test specimen seat 18 is connected with pulling force sensor 48 by tinsel 56; On the lower surface of lower test specimen seat 18, fixedly mount calibrate AE sensor 30; Hall switch 53 is arranged on Hall switch support 54, and Hall switch support 54 is fixed on the semi-girder of main spindle box erecting frame 46, and the axis of the axis of Hall switch 53 and main shaft 24 is perpendicular; Each road signal passes to computing machine processing by data adapter above.
Atomizer 21 is connected with Lubricating pump station through oil-in, pipeline, the flowrate control valve of lower test specimen seat 18, and atomizer 21 is connected with lower test specimen seat 18 by screw thread.
Lifting jack fixed mount 42 is fixed on base 1 lower shoe, motor-driven jack 41 is placed in lifting jack fixed mount 42, jacking header frame 40 lower ends are connected with motor-driven jack 41, cylindrical pin I44 is arranged on jacking header frame 40 circular holes, and cylindrical pin I44 is installed with cylinder roller bearing 45 by interference fit, stepper motor 38 is fixed on stepper motor support 63, and stepper motor support 63 is fixed on the base plate of rolling guide support 4, stepper motor 38 output shafts are connected with ball-screw 36 one end by plum coupling 39, and ball-screw 36 is axially fixed in bearing seat 37, and bearing seat 37 is fixed on the base plate of rolling guide support 4, ball-screw 36 is connected with feed screw nut 35 by threaded engagement, feed screw nut 35 is fixed on contiguous block 34 by end flange, contiguous block 34 is fixed on weight tray 57 belows, and counterweight 32 is fixedly mounted on weight tray 57 by four screw rods 33 and four nuts, on rolling guide support 4, fixedly mounting a pair of rolling guide 59, rolling slide block 58 tops are fixed on weight tray 57 belows, and rolling slide block 58 bottoms are arranged on rolling guide 59, and can move freely along rolling guide 59, a pair of bearing support 43 upper end circular holes are flexibly connected with rolling guide support 4 footing circular holes by cylindrical pin II67, and bearing support 43 lower ends are fixed on base 1 lower shoe, connecting rod 5 two ends are hinged with rolling guide support 4 and slide block 6 by a pair of spherical washer 3 respectively, and use respectively round nut 2 axial restraints, cramp bar 7 is fixed between slide block 6 and pressure transducer support 8, support flange 11 is fixed on bolster 15 lower ends, and support flange 11 upper end boss are connected by interference fit with bolster 15 lower end axis holes, bolster 15 also can move freely vertically through the endoporus of a pair of linear bearing 12, a pair of linear bearing 12 is fixed in 13 liang of stomidiums of linear axis bearing by end flange respectively, linear axis bearing 13 is fixed on rack support plate 14 by flange, bolster 15 upper end installed thrust ball bearings 17, lower test specimen seat 18 lower end boss are connected with thrust ball bearing 17 endoporus by interference fit, heat dissipating ring 20 is fixed on lower test specimen seat 18 by transition fit, between lower test specimen blowout patche 62 and upper test specimen blowout patche 60, be provided with rolling body 61, and rolling body 61 is connecting respectively up and down goes up test specimen blowout patche 60 and lower test specimen blowout patche 62, oil scraper ring 29 is fixed on the outer ring of lower test specimen seat 18.
Main spindle box erecting frame 46 semi-girder lower ends are fixedly connected with two security window upper rails 64; Described support plate 14 upper surfaces are being fixedly connected with two security window lower guideways 66, and are placing removably security window 65 in the groove of security window upper rail 64 and security window lower guideway 66.
Before test, test specimen is first installed.First, startup system, then operating motor-driven jack 41 moves up, by rolling guide support 4 right-hand member jack-up, utilize lever principle that the left end of rolling guide support 4 is moved down around bearing support 43 circular holes, promoting lower test specimen seat 18 moves down along linear bearing 12, when bolster 15 moves to extreme lower position shut-down operation motor-driven jack 41, then test specimen is installed, upper test specimen blowout patche 60 is connected by clearance fit with drive mandrel 23, and realizes axial restraint by ceramic sleeve 28 and the gib screw 22 being connected in drive mandrel 23 lower end threaded holes.Lower test specimen blowout patche 62 is connected with lower test specimen seat 18 by clearance fit, and rolling body 61 is placed on lower test specimen blowout patche 62 upper surfaces according to testing requirements.Oil scraper ring 29 is fixed on lower test specimen seat 18 excircles, finally security window 65 is placed on along in the groove of security window upper rail 64 and security window lower guideway 66.
The enforcement of test, rolling contact fatigue-testing machine energising, then start-up loading system, lubricating system and kinematic train successively.Start motor-driven jack 41, operation motor-driven jack 41 moves down jacking header frame 40, rolling guide support 4 right parts are along with motor-driven jack top frame 40 falls after rise simultaneously, utilize lever principle, rolling guide support 4 left parts are rotated promotion connecting rod 5 around bearing support 43 connecting holes and are moved upward, again successively by promoting slide block 6, cramp bar 7, pressure transducer support 8, pressure transducer 9, support flange 11, bolster 15, thrust ball bearing 17, lower test specimen seat 18 is along linear bearing 12 upward slidings, until rolling body 61 contacts with upper test specimen blowout patche 60 lower surfaces, continue operation motor-driven jack 41, cylinder roller bearing 45 and rolling guide support 4 are disengaged.Test loads by starting stepper motor 38, drive ball-screw 36 to rotate, the rotation of the feed screw nut adjutant ball-screw 36 consisting of ball-screw 36 and feed screw nut 35 is converted to the movement of weight tray 57, and then drive counterweight 32 to move left and right, by the amplification principle of lever, according to input instruction, counterweight 32 is moved to predeterminated position, the load applying is applied on lower test specimen blowout patche 62 by connecting rod 5, slide block 6, cramp bar 7, pressure transducer support 8, pressure transducer 9, support flange 11, bolster 15, thrust ball bearing 17, lower test specimen seat 18.Atomizer 21 sprays lubricating oil test specimen is lubricated.High-speed main spindle motor 49 drives upper test specimen blowout patche 60 High Rotation Speeds by driving pulley 51, Timing Belt 52, driven pulley 26, main shaft 24 and drive mandrel 23, and rolling body 61 rotates thereupon.Along with the carrying out of test, the test load being collected by pressure transducer 9 in process of the test; The temperature of lower test specimen blowout patche 62 lower surfaces that collected by temperature sensor 19; Collected the vibration of test specimen by acceleration transducer 16; Collected the vibrations sound wave of test specimen by calibrate AE sensor 30; Go out friction torque by pulling force sensor 48 and the pulling force indirect calculation that the tinsel 56 that is fixed on lower test specimen seat 18 collects; The revolution being collected by Hall switch 53 and each road signal can be delivered in real time computing machine and be shown on screen.Detection system is provided with self-shield program simultaneously, and in the time that a certain parameter reaches preset value, experiment opportunity auto stop is also reported to the police, and realizes the self-protection function to testing machine system.By reference to the accompanying drawings embodiments of the present invention are explained in detail above, but the present invention is not limited to above embodiment, in the ken that one skilled in the relevant art possesses, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.
Claims (2)
1. the electronic loaded type rolling contact fatigue-testing machine of lever, comprises body, loading system, kinematic train, lubricating system and information acquisition control system, it is characterized in that:
Described body comprises base, support plate, switch board; Support plate and switch board are fixed on base, fixedly mount main spindle box erecting frame on support plate, are fixedly installed two root posts between main spindle box erecting frame and support plate, on the semi-girder of main spindle box erecting frame, fixedly mount electric machine support;
Described loading system comprises round nut, spherical washer, rolling guide support, connecting rod, slide block, cramp bar, linear bearing, linear axis bearing, bolster, thrust ball bearing, heat dissipating ring, oil scraper ring, counterweight, screw rod, contiguous block, ball-screw, bearing seat, stepper motor, jacking header frame, motor-driven jack, lifting jack fixed mount, bearing support, cylinder roller bearing, weight tray, rolling slide block, rolling guide, stepper motor support, lifting jack fixed mount is fixed on base lower shoe, motor-driven jack is placed in lifting jack fixed mount, jacking header frame lower end is connected with motor-driven jack, on jacking header frame circular hole, cylindrical pin I is installed, and cylindrical pin I is installed with cylinder roller bearing by interference fit, stepper motor is fixed on stepper motor support, and stepper motor support is fixed on the base plate of rolling guide support, the output shaft of stepper motor is connected with ball-screw one end by plum coupling, and ball-screw is axially fixed in bearing seat, and bearing seat is fixed on the base plate of rolling guide support, ball-screw is connected with feed screw nut by threaded engagement, and feed screw nut is fixed on contiguous block by end flange, and contiguous block is fixed on weight tray below, and counterweight is fixedly mounted on weight tray by four screw rods and four nuts, on rolling guide support, fixedly mounting a pair of rolling guide, rolling slide block top is fixed on weight tray below, and rolling slide block bottom is arranged on rolling guide, and can move freely along rolling guide, a pair of bearing support upper end circular hole is all provided with cylindrical pin II, and bearing support is flexibly connected with rolling guide support footing by cylindrical pin II, and bearing support lower end is fixed on base lower shoe, connecting rod two ends are hinged by a pair of spherical washer and rolling guide support and slide block respectively, and use respectively round nut axial restraint, cramp bar is fixed between slide block and pressure transducer support, support flange is fixed on bolster lower end, and support flange upper end boss is connected by interference fit with bolster lower end axis hole, bolster also can move freely vertically through the endoporus of a pair of linear bearing, a pair of linear bearing is fixed in hole, linear axis bearing two ends by end flange respectively, linear axis bearing is fixed on rack support plate by flange, bolster upper end installed thrust ball bearing, lower test specimen seat lower end boss is connected with thrust ball bearing endoporus by interference fit, heat dissipating ring is fixed on lower test specimen seat by transition fit, between lower test specimen blowout patche and upper test specimen blowout patche, be provided with rolling body, and rolling body is connecting respectively up and down goes up test specimen blowout patche and lower test specimen blowout patche, oil scraper ring is fixed on the outer ring of lower test specimen seat,
Described kinematic train comprises gib screw, drive mandrel, main shaft, main spindle box, driven pulley, cooling ring, ceramic sleeve, high-speed main spindle motor, driving pulley, Timing Belt; High-speed main spindle motor is fixed on the side of electric machine support, and driving pulley is fixedly mounted on high-speed main spindle motor output shaft, and high-speed main spindle motor is by driving pulley, and Timing Belt is in transmission connection with the driven pulley that is fixed on main shaft upper end; Main shaft is arranged in main spindle box, main spindle box is fixed on main spindle box erecting frame by end flange, drive mandrel upper end is connected with main shaft lower end threaded hole by screw thread, cooling ring inner ring is connected by clearance fit with drive mandrel respectively with ceramic sleeve inner ring, drive mandrel lower end is being connected and is being gone up test specimen blowout patche by clearance fit, and ceramic sleeve and the gib screw being connected in the threaded hole of drive mandrel lower end are realized the axial restraint to upper test specimen blowout patche;
Described lubricating system comprises atomizer, and atomizer is connected with Lubricating pump station by oil-in, pipeline, the flowrate control valve of lower test specimen seat, and atomizer is connected with lower test specimen seat by screw thread;
Described information acquisition system comprises pressure transducer support, pressure transducer, guide rail, support flange, acceleration transducer, lower test specimen seat, temperature sensor, pulling force sensor support, pulling force sensor, Hall switch, Hall switch support, tinsel; Pressure transducer is fixed on pressure transducer support, and pressure transducer support is connected with support flange by two guide rails, and pressure transducer top contacts with support flange lower surface boss; Temperature sensor is placed in the through hole of lower test specimen seat, and lower test specimen seat upper end boss outer circumference surface is installed with lower test specimen blowout patche by clearance fit, and the lower surface of lower test specimen blowout patche contacts with temperature sensor; Acceleration transducer is fixed on lower test specimen seat lower surface; Pulling force sensor is arranged on pulling force sensor support, and pulling force sensor support is fixed on main spindle box erecting frame, and lower test specimen seat is connected with pulling force sensor by tinsel; On the lower surface of lower test specimen seat, fixedly mount calibrate AE sensor; Hall switch is arranged on Hall switch support, and Hall switch support is fixed on the semi-girder of main spindle box erecting frame, and the axis of Hall switch and the axis of main shaft are perpendicular; Each road signal passes to computing machine processing by data adapter above.
2. the electronic loaded type rolling contact fatigue-testing machine of lever according to claim 1, is characterized in that: described main spindle box erecting frame semi-girder lower end is being fixedly connected with two security window upper rails; Described support plate upper surface is being fixedly connected with two security window lower guideways, and is placing removably security window in the groove of security window upper rail and security window lower guideway.
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