CN204128826U - A kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system - Google Patents
A kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system Download PDFInfo
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- CN204128826U CN204128826U CN201420599135.XU CN201420599135U CN204128826U CN 204128826 U CN204128826 U CN 204128826U CN 201420599135 U CN201420599135 U CN 201420599135U CN 204128826 U CN204128826 U CN 204128826U
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Abstract
The utility model discloses a kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system, it surveys roller bearing unit operating mode is that outer ring rotates, and it comprises test head assembly, loading component, drive disk assembly, frame and control supervisory system.Roller bearing cellular installation is on the guide rail of test head assembly, and guide rail slidably contacts with power wheel; Power wheel is arranged on transmission shaft, and transmission shaft, by variable-frequency motor, speed reduction unit and sprocket wheel chain drive, realizes stepless speed regulation by frequency conversion; Loading system adopts pressure-reduced and-regulated loading principle; Control supervisory system and comprise temperature sensor, speed probe, vibration transducer, industrial computer and display; The roller bearing unit recorded vibration and roller bearing cell temperature signal are shown by industrial computer by sensor over the display.The utility model is stable operation under test conditions, test bearing wide variety, can testing large fork truck door frame idler wheel bearing unit use operating mode.
Description
Technical field
The utility model relates to a kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system, and particularly relate to the heavy duty of a kind of energy testing large, its applying working condition is the system of the roller bearing cell life that outer ring rotates.
Background technology
The operating mode that large-scale fork truck door frame idler wheel bearing unit and automobile current generator bearing use is outer ring and rotates, because its applying working condition is special, to the life-span of bearing and the requirement of reliability also quite high.At present, along with the demand of outer ring swivel bearing and range of application constantly expand, its product quality requires also than original stricter.Current existing bearing life testing machine cannot the outer ring swing roller bearing unit of testing large, still specialized designs a outer ring swing roller bearing unit service life experiment system, studying life-span and the reliability of swing roller bearing unit in outer ring in actual use procedure.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system.
The purpose of this utility model is achieved through the following technical solutions: a kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system, for testing the life-span of roller bearing unit, comprising: loading component, frame, working plate, test head assembly, drive disk assembly and control supervisory system; Wherein said loading component, drive disk assembly and working plate are all fixed in frame; Described test head assembly is fixed on working plate; Described loading component acting force on test head assembly, and promotes test head assembly and makes it to contact with drive disk assembly; Described drive disk assembly and test head assembly are all connected with control supervisory system.
Described drive disk assembly comprises frequency converter, alternating-current variable frequency motor, speed reduction unit, chain, two sprocket wheels, transmission shaft, power wheel, bearing cushion block, drive bearing and location-plates; Described frequency converter is connected with alternating-current variable frequency motor, controls rotating speed and the direction of alternating-current variable frequency motor; Alternating-current variable frequency motor is connected with speed reduction unit, the output shaft of speed reduction unit is installed a sprocket wheel, and another sprocket wheel is installed in one end of transmission shaft, and two sprocket wheels are connected by chain; Power wheel is loaded on transmission shaft, and two ends of transmission shaft respectively install a drive bearing, and drive bearing is fixed on bearing cushion block, and bearing cushion block is fixed on working plate, during each replacing power wheel, locates with location-plate.
Described loading component comprises dull and stereotyped lengthened plate, pumping plant, accumulator, electro connecting pressure gauge, stop valve, pressure regulator valve, tensimeter, counterweight hook, pressure unit, solenoid directional control valve and hydraulic jack, described pumping plant comprises unidirectional solenoid directional control valve, surplus valve, oil pump, motor, filtrator and retaining valve, the output shaft of described motor is connected with oil pump, the oil-in of oil pump is connected with fuel tank pipeline by filtrator, oil pump oil-out is connected with surplus valve pipeline with retaining valve respectively, the other end of surplus valve is connected with fuel tank pipeline, the other end of retaining valve is connected with accumulator one end, unidirectional solenoid directional control valve installed by the pipeline of retaining valve with accumulator, the other end of unidirectional solenoid directional control valve is connected with fuel tank pipeline, the other end of accumulator is connected with stop valve, the pipeline that accumulator connects with stop valve connects electro connecting pressure gauge, the other end of stop valve is connected with one end of pressure regulator valve, the other end of pressure regulator valve is connected with the P interface of solenoid directional control valve, Bonding pressure table and pressure unit on the pipeline of stop valve with pressure regulator valve, the A interface of solenoid directional control valve is connected with the front port of hydraulic jack, the B interface of solenoid directional control valve is connected with the rear port of hydraulic jack, hydraulic jack is arranged on dull and stereotyped lengthened plate, and dull and stereotyped lengthened plate is fixed on working plate, counterweight hook is installed, by the secondary oil oil pressure regulating the quality of counterweight to set up this pressure regulator valve below pressure regulator valve.
Described test head assembly comprises newel, set nut, fixed head, guiderail base, upper rail seat, WidFin screw, WidFin plate, steel ball, screw, guide rail, adds long guideway, tests axle and fixed cover; Described guiderail base is connected with working plate by newel, by set nut fixed central cylinder, guiderail base can not be moved, and then the individual screw tightened on guiderail base makes guiderail base be fixedly connected with working plate, guiderail base loads onto track base, and upper rail seat is by steel ball connection guide rail, and roller bearing unit is contained on test axle, test axle is arranged on guide rail, fix with fixed cover, fixed cover is positioned on guide rail, and test axle can contact with power wheel with the slip of guide rail; WidFin plate is fixed on working plate, and WidFin screw is arranged on WidFin plate, by the position of WidFin screw adjustment guiderail base; When roller bearing unit external diameter is less than 150mm, need will lengthen guide rails assembling on guide rail.
Described control supervisory system comprises temperature sensor, speed probe, vibration transducer, industrial computer and display; Temperature sensor is arranged on test axle axle center place, tests the change of roller bearing cell temperature; Speed probe is contained in the end face that transmission shaft has sprocket wheel side, is used for testing the rotating speed of transmission shaft, and vibration transducer is contained on fixed head; Vibration transducer, temperature sensor are connected with industrial computer with A/D digital to analog converter by filter with speed pickup, and industrial computer is connected with display, are shown over the display by the numerical value measured by industrial computer.
The beneficial effects of the utility model are: at variable-ratio, stable under the test condition of large load, and its triable bearing internal external footpath range of size is wide, and can survey all operating modes is the bearing that outer ring rotates.
Accompanying drawing explanation
Fig. 1 is the total schematic diagram of each parts of roller bearing cell life pilot system;
Fig. 2 is the front view of roller bearing cell life pilot system;
Fig. 3 is the left view of roller bearing cell life pilot system;
Fig. 4 is loading system hydraulic schematic diagram;
Fig. 5 is test headstock block diagram;
Fig. 6 is drive disk assembly schematic diagram;
Fig. 7 is locating device schematic diagram during installation roller;
Fig. 8 is for controlling supervisory system principle schematic;
In figure: loading component 1, frame 2, test head assembly 3, drive disk assembly 4, control supervisory system 5, display 6, industrial computer 7, pumping plant 8, dull and stereotyped lengthened plate 9, working plate 10, vibration transducer 11, add long guideway 12, bearing cushion block 13, drive bearing 14, speed probe 15, counterweight hook 16, WidFin screw 17, WidFin plate 18, steel ball 19, hydraulic jack 20, pressure regulator valve 21, tensimeter 22, solenoid directional control valve 23, pressure unit 24, stop valve 25, unidirectional solenoid directional control valve 26, surplus valve 27, oil pump 28, motor 29, filtrator 30, retaining valve 31, accumulator 32, electro connecting pressure gauge 33, newel 34, set nut 35, fixed head 36, guiderail base 37, upper rail seat 38, guide rail 39, test axle 40, fixed cover 41, test bearing 42, location-plate 43, temperature sensor 44, screw 45, transmission shaft 46, power wheel 47, sprocket wheel 48, chain 49, speed reduction unit 50, alternating-current variable frequency motor 51.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
According to the applying working condition of outer ring swivel bearing, in order to the wider of rolling bearing unit can be tested, require the bearing that the contact fatigue life of outer ring is higher, the important technological parameters of the utility model design: test bearing internal diameter is φ 50-120mm, external diameter is φ 100-260mm; Rotating speed is 50-200r/min (stepless speed regulation); Maximum radial load 200KN, error≤± 2%; Measurement parameter is roller bearing unit rotating speed, vibration and inner ring temperature.
As Figure 1-3, a kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system of the utility model, for testing the life-span of roller bearing unit 42, comprising: loading component 1, frame 2, working plate 10, test head assembly 3, drive disk assembly 4 and control supervisory system 5; Wherein said loading component 1, drive disk assembly 4 and working plate 10 are all fixed in frame 2; Described test head assembly 3 is fixed on working plate 10; Described loading component 1 acting force on test head assembly 3, and promotes test head assembly 3 and makes it to contact with drive disk assembly 4; Described drive disk assembly 4 and test head assembly 3 are all connected with control supervisory system 5.
As shown in Figure 4, described loading component 1 comprises dull and stereotyped lengthened plate 9, pumping plant 8, accumulator 32, electro connecting pressure gauge 33, stop valve 25, pressure regulator valve 21, tensimeter 22, counterweight hook 16, pressure unit 24, solenoid directional control valve 23 and hydraulic jack 20, described pumping plant 8 comprises unidirectional solenoid directional control valve 26, surplus valve 27, oil pump 28, motor 29, filtrator 30 and retaining valve 31, the output shaft of described motor 29 is connected with oil pump 28, the oil-in of oil pump 28 is connected with fuel tank pipeline by filtrator 30, oil pump 28 oil-out is connected with surplus valve 27 pipeline with retaining valve 31 respectively, the other end of surplus valve 27 is connected with fuel tank pipeline, the other end of retaining valve 31 is connected with accumulator 32 one end, with on the pipeline of accumulator 32, unidirectional solenoid directional control valve 26 is installed at retaining valve 31, the other end of unidirectional solenoid directional control valve 26 is connected with fuel tank pipeline, the other end of accumulator 32 is connected with stop valve 25, the pipeline that accumulator 32 connects with stop valve 25 connects electro connecting pressure gauge 33, the other end of stop valve 25 is connected with one end of pressure regulator valve 21, the other end of pressure regulator valve 21 is connected with the P interface of solenoid directional control valve 23, at stop valve 25 with Bonding pressure table 22 and pressure unit 24 on the pipeline of pressure regulator valve 21, the A interface of solenoid directional control valve 23 is connected with the front port of hydraulic jack 20, the B interface of solenoid directional control valve 23 is connected with the rear port of hydraulic jack 20, hydraulic jack 20 is arranged on dull and stereotyped lengthened plate 9, and dull and stereotyped lengthened plate 9 is fixed on working plate 10, counterweight hook 16 is installed, by the secondary oil oil pressure regulating the quality of counterweight to set up this pressure regulator valve 21 below pressure regulator valve 21.Solenoid directional control valve 23 is two-position four way change valve, is in B position during loading, resets when unloading and is in A position.Pressure regulator valve relies on the weight of counterweight to set up the secondary pressure oil oil pressure of this valve, and hydraulic jack 20 is arranged on dull and stereotyped lengthened plate 9, and loading force is acted on guide rail and is delivered on roller bearing unit 42 by the slip of guide rail.Need the counterweight putting counterweight installed below pressure regulator valve 21 to link up with 16 quality in test during the size of computing power to be about 2kg and to count in counterweight.In test, loading force is constant force, determines according to testing requirements, error can be controlled in ± 2% within.The feature of this system is: load stable, hydraulic system energy consumption is little, avoids and brings temperature rise to pressure oil, the unfavorable factors such as oxidation because of oil pump long-term work, make it greatly to extend serviceable life.
As shown in Figure 5, described test head assembly 3 comprises newel 34, set nut 35, fixed head 36, guiderail base 37, upper rail seat 38, WidFin screw 17, WidFin plate 18, steel ball 19, screw 45, guide rail 39, adds long guideway 12, tests axle 40 and fixed cover 41, described guiderail base 37 is connected with working plate 10 by newel 34, by set nut 35 fixed central cylinder 34, guiderail base 37 can not be moved, and then 6 screws 45 tightened on guiderail base 37 make guiderail base 37 be fixedly connected with working plate 10, guiderail base 37 is loaded onto track base 38, upper rail seat 38 is by steel ball 19 connection guide rail 39, roller bearing unit 42 is contained on test axle 40, test axle 40 is arranged on guide rail 39, fix with fixed cover 41, fixed cover 41 is positioned on guide rail 39, test axle 40 can contact with power wheel 47 with the slip of guide rail 39, WidFin plate 18 is fixed on working plate 10, and WidFin screw 17 is arranged on WidFin plate 18, is adjusted the position of guiderail base 37 by WidFin screw 17, and then carries out outer ring rotation test, when roller bearing unit 42 external diameter is less than 150mm, needs to add long guideway 12 and be arranged on guide rail 39.Be linear contact lay between roller bearing unit 42 and power wheel 47, power wheel 47 rotates and drives roller bearing unit 42 outer ring to rotate by friction.In order to ensure that between roller bearing unit 42 and power wheel 47, linear contact lay in order, roller bearing unit axial line WidFin mechanism is provided with at guiderail base 37 place, adjustable roller bearing unit 42 horizontal direction angle 0 ~ ± 5 °, to ensure roller bearing unit 42 axial line and transmission shaft 46 axis parallel, adjust in time during test and can avoid making because of contact unbalance loading the authenticity of bearing life and test figure produce larger impact.Concrete adjustment mode is as follows: make roller bearing unit 42 and transmission shaft 47 gentle touchdown by guide rail 39, guiderail base 37 central point is adjusted by abrasion mark, the screw 45 on guiderail base 37 and the set nut 35 on connection guide rail base 37 newel 34 is unclamped with specific purpose tool, left and right Ge Bian adjusts WidFin screw 17 relatively to adjust guiderail base 37 position, roller bearing unit 42 is made to aim at power wheel 47 center, after test working, use specific purpose tool set nut 35 again, and 6 screws 45 on guiderail base 37 are tightened one by one.Sometimes bearing outer ring local severe friction and the generation of power wheel sharp worn situation is had in process of the test, deformed by larger radial force for this is thinner to outer ring, load is larger bearing needs to add a fixed cover in its outer ring to prevent outer ring, then test is affected, the material of power wheel 47 also should select the alloy steel of some high strength, and after heat treatment skin hardness is suitable with bearing outer ring.
As shown in Figure 6,7, described drive disk assembly 4 comprises frequency converter, alternating-current variable frequency motor 51, speed reduction unit 50, chain 49, two sprocket wheels 48, transmission shaft 46, power wheel 47, bearing cushion block 13, drive bearing 14 and location-plates 43; Described frequency converter is connected with alternating-current variable frequency motor 51, controls rotating speed and the direction of alternating-current variable frequency motor 51; Alternating-current variable frequency motor 51 is connected with speed reduction unit 50, the output shaft of speed reduction unit 50 is installed a sprocket wheel 48, and one end of transmission shaft 46 is installed another sprocket wheel 48, two sprocket wheels 48 and connected by chain 49; Power wheel 47 is loaded on transmission shaft 46, and two ends of transmission shaft 46 respectively install a drive bearing 14, and drive bearing 14 is fixed on bearing cushion block 13, and bearing cushion block 13 is fixed on working plate 10, during each replacing power wheel 47, locates with location-plate 43.What transmission shaft 46 was installed is the bearing with spherical outside surface of UCP310, because spherical outside surface cannot carry out location, therefore, specially devises the horizontal level of the accurate locating transmission axle 46 of two pieces of location-plates 43.Warranty test axle 46 is vertical with reference field (face outside chain 49).Therefore each power wheel 47 of changing all must reorientate transmission shaft 46 with two pieces of location-plates 43.Main motor speed change gear makes moment of torsion import transmission shaft 46 into by driving-chain, and transmission shaft 46 rotates and rotates with power wheel 47.Main motor adopts ac variable-frequency electric motor, realizes stepless speed regulation by frequency conversion.
As shown in Figure 8, described control supervisory system 5 comprises temperature sensor 44, speed probe 15, vibration transducer 11, industrial computer 7 and display 6; Temperature sensor 44 is arranged on test axle 40 axle center place, tests roller bearing unit 42 temperature variation; Speed probe 15 is contained in transmission shaft 46 has the end face of sprocket wheel 48 side (not contact near end face, leave some gaps, it tests the speed by magnetic induction), be used for testing the rotating speed of transmission shaft 46, then the outer ring rotating speed of roller bearing unit 42 is: transmission shaft 46 rotating speeds × power wheel 47 diameters/roller bearing unit 42; Vibration transducer 15 is contained on fixed head 36; Vibration transducer 11, temperature sensor 44 are connected with industrial computer 7 with A/D digital to analog converter by filter with speed pickup 15, and industrial computer 7 is connected with display 6, are shown on the display 6 by the numerical value measured by industrial computer 7.
Concrete process of the test is as follows:
1, roller bearing unit 42 to be tested is arranged on guide rail 39, adjust the center of bearing roller unit 42 to be measured, be specially: promote guide rail 39 and roller bearing unit 42 to be measured is just contacted with power wheel 47, low speed test working is after three minutes, unclamp the set nut 35 of 6 screws 45 on guiderail base 37 and fixed central cylinder 34, contacted the position of rotating the Friction mark print adjustment guiderail base 37 stayed with power wheel 47 by roller bearing unit 42 to be measured during low speed test working, bearing roller unit 42 is made to aim at power wheel 47 center, low speed test working three minutes again, after determining position, locking set nut 35, and 6 screws 45 on test head base 37 limit are tightened one by one,
2, mode of operation and the test parameters of roller bearing unit 42 to be tested is set, described mode of operation comprises manual mode and automatic mode, described manual mode is specially: on industrial computer 7, set the execution time of roller bearing unit 42 to be tested and perform frequency, starting characteristics test system; Described automatic mode is specially: set on industrial computer 7 total step number of roller bearing unit 42 to be tested, each step execution time and perform frequency, starting characteristics test system; Described frequency values on the occasion of time represent that transmission shaft 47 rotates forward, represent when frequency values is negative value that transmission shaft 47 reverses;
3, after pilot system running, open stop valve 25 and regulate pressure regulator valve 21 that loading component 1 is started running, the thrust of hydraulic jack 20, on guide rail 39, makes roller bearing unit 42 to be measured contact with power wheel 47; According to mode of operation and the test parameters of the roller bearing unit 42 to be tested of step 2 setting, divided in first 2 hours that run and 3 times counterweight is added on counterweight hook 16; On industrial computer 7, the frequency values of input is transferred on frequency converter, the rotating speed of Frequency Converter Control alternating-current variable frequency motor 51 and direction; Alternating-current variable frequency motor 51 controls rotating speed and the direction of transmission shaft 46; The data of collection are shown by industrial computer 7 by vibration transducer 11, temperature sensor 44 and speed pickup 15 on the display 6, complete the durability test of roller bearing unit 42.
Industrial computer 7 described in the utility model only to be played frequency signal transmission to frequency converter, the data that vibration transducer 11, temperature sensor 44 and speed pickup 15 gather is shown by display 6, being the common technology means of this area, is not inventive point of the present utility model.
Claims (4)
1. one kind large-scale fork truck door frame idler wheel bearing unit service life experiment system, for testing the life-span of roller bearing unit (42), it is characterized in that, comprising: loading component (1), frame (2), working plate (10), test head assembly (3), drive disk assembly (4) and control supervisory system (5); Wherein said loading component (1), drive disk assembly (4) and working plate (10) are all fixed in frame (2); Described test head assembly (3) is fixed on working plate (10); Described loading component (1) acting force on test head assembly (3), and promotes test head assembly (3) and makes it to contact with drive disk assembly (4); Described drive disk assembly (4) and test head assembly (3) are all connected with control supervisory system (5); Described drive disk assembly (4) comprises frequency converter, alternating-current variable frequency motor (51), speed reduction unit (50), chain (49), two sprocket wheels (48), transmission shaft (46), power wheel (47), bearing cushion block (13), drive bearing (14) and location-plates (43); Described frequency converter is connected with alternating-current variable frequency motor (51), controls rotating speed and the direction of alternating-current variable frequency motor (51); Alternating-current variable frequency motor (51) is connected with speed reduction unit (50), the output shaft of speed reduction unit (50) is installed a sprocket wheel (48), another sprocket wheel (48) is installed in one end of transmission shaft (46), and two sprocket wheels (48) are connected by chain (49); Power wheel (47) is loaded on transmission shaft (46), two ends of transmission shaft (46) respectively install a drive bearing (14), drive bearing (14) is fixed on bearing cushion block (13), bearing cushion block (13) is fixed on working plate (10), time each replacing power wheel (47), locate with location-plate (43).
2. large-scale fork truck door frame idler wheel bearing unit service life experiment system according to claim 1, it is characterized in that, described loading component (1) comprises dull and stereotyped lengthened plate (9), pumping plant (8), accumulator (32), electro connecting pressure gauge (33), stop valve (25), pressure regulator valve (21), tensimeter (22), counterweight hook (16), pressure unit (24), solenoid directional control valve (23) and hydraulic jack (20), described pumping plant (8) comprises unidirectional solenoid directional control valve (26), surplus valve (27), oil pump (28), motor (29), filtrator (30) and retaining valve (31), the output shaft of described motor (29) is connected with oil pump (28), the oil-in of oil pump (28) is connected with fuel tank pipeline by filtrator (30), oil pump (28) oil-out is connected with surplus valve (27) pipeline with retaining valve (31) respectively, the other end of surplus valve (27) is connected with fuel tank pipeline, the other end of retaining valve (31) is connected with accumulator (32) one end, unidirectional solenoid directional control valve (26) installed by the pipeline of retaining valve (31) with accumulator (32), the other end of unidirectional solenoid directional control valve (26) is connected with fuel tank pipeline, the other end of accumulator (32) is connected with stop valve (25), the pipeline that accumulator (32) connects with stop valve (25) connects electro connecting pressure gauge (33), the other end of stop valve (25) is connected with one end of pressure regulator valve (21), the other end of pressure regulator valve (21) is connected with the P interface of solenoid directional control valve (23), at stop valve (25) with Bonding pressure table (22) on the pipeline of pressure regulator valve (21) and pressure unit (24), the A interface of solenoid directional control valve (23) is connected with the front port of hydraulic jack (20), the B interface of solenoid directional control valve (23) is connected with the rear port of hydraulic jack (20), hydraulic jack (20) is arranged on dull and stereotyped lengthened plate (9), and dull and stereotyped lengthened plate (9) is fixed on working plate (10), counterweight hook (16) is installed in pressure regulator valve (21) below, by the secondary oil oil pressure regulating the quality of counterweight to set up this pressure regulator valve (21).
3. large-scale fork truck door frame idler wheel bearing unit service life experiment system according to claim 1, it is characterized in that, described test head assembly (3) comprises newel (34), set nut (35), fixed head (36), guiderail base (37), upper rail seat (38), WidFin screw (17), WidFin plate (18), steel ball (19), screw (45), guide rail (39), adds long guideway (12), tests axle (40) and fixed cover (41), described guiderail base (37) is connected with working plate (10) by newel (34), by set nut (35) fixed central cylinder (34), guiderail base (37) can not be moved, and then 6 screws (45) of tightening on guiderail base (37) make guiderail base (37) be fixedly connected with working plate (10), guiderail base (37) is loaded onto track base (38), upper rail seat (38) is by steel ball (19) connection guide rail (39), roller bearing unit (42) is contained in test axle (40), test axle (40) is arranged on guide rail (39), fix with fixed cover (41), fixed cover (41) is positioned on guide rail (39), test axle (40) can contact with power wheel (47) with the slip of guide rail (39), WidFin plate (18) is fixed on working plate (10), WidFin screw (17) is arranged on WidFin plate (18), by the position of WidFin screw (17) adjustment guiderail base (37), when roller bearing unit (42) external diameter is less than 150mm, needs to add long guideway (12) and be arranged on guide rail (39).
4. large-scale fork truck door frame idler wheel bearing unit service life experiment system according to claim 1, it is characterized in that, described control supervisory system (5) comprises temperature sensor (44), speed probe (15), vibration transducer (11), industrial computer (7) and display (6); Temperature sensor (44) is arranged on test axle (40) axle center place, tests roller bearing unit (42) temperature variation; Speed probe (15) is contained in the end face that transmission shaft (46) has sprocket wheel (48) side, be used for test transmission shaft (46) rotating speed, vibration transducer (15) is contained on fixed head (36); Vibration transducer (11), temperature sensor (44) are connected with industrial computer (7) with A/D digital to analog converter by filter with speed pickup (15), industrial computer (7) is connected with display (6), is presented on display (6) by the numerical value of mensuration by industrial computer (7).
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| CN201420599135.XU CN204128826U (en) | 2014-10-16 | 2014-10-16 | A kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system |
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| CN201420599135.XU CN204128826U (en) | 2014-10-16 | 2014-10-16 | A kind of large-scale fork truck door frame idler wheel bearing unit service life experiment system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374572A (en) * | 2014-10-16 | 2015-02-25 | 杭州轴承试验研究中心有限公司 | Large-scale forklift portal idler wheel bearing unit service life test system and method |
| CN112067295A (en) * | 2020-09-07 | 2020-12-11 | 沈阳建筑大学 | All-ceramic ball bearing outer ring raceway rolling contact fatigue test device and test method |
| CN114088398A (en) * | 2021-09-26 | 2022-02-25 | 武汉晶泰科技股份有限公司 | Test method for evaluating performance of bearing rolling body |
-
2014
- 2014-10-16 CN CN201420599135.XU patent/CN204128826U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374572A (en) * | 2014-10-16 | 2015-02-25 | 杭州轴承试验研究中心有限公司 | Large-scale forklift portal idler wheel bearing unit service life test system and method |
| CN104374572B (en) * | 2014-10-16 | 2017-02-15 | 杭州轴承试验研究中心有限公司 | Large-scale forklift portal idler wheel bearing unit service life test system and method |
| CN112067295A (en) * | 2020-09-07 | 2020-12-11 | 沈阳建筑大学 | All-ceramic ball bearing outer ring raceway rolling contact fatigue test device and test method |
| CN112067295B (en) * | 2020-09-07 | 2022-04-22 | 沈阳建筑大学 | All-ceramic ball bearing outer ring raceway rolling contact fatigue test device and test method |
| CN114088398A (en) * | 2021-09-26 | 2022-02-25 | 武汉晶泰科技股份有限公司 | Test method for evaluating performance of bearing rolling body |
| CN114088398B (en) * | 2021-09-26 | 2023-11-17 | 武汉晶泰科技股份有限公司 | Test method for evaluating performance of bearing rolling body |
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