CN102854014A - Dynamic performance test device for angular contact ball bearing retainer - Google Patents
Dynamic performance test device for angular contact ball bearing retainer Download PDFInfo
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- CN102854014A CN102854014A CN201210336882XA CN201210336882A CN102854014A CN 102854014 A CN102854014 A CN 102854014A CN 201210336882X A CN201210336882X A CN 201210336882XA CN 201210336882 A CN201210336882 A CN 201210336882A CN 102854014 A CN102854014 A CN 102854014A
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Abstract
The invention relates to a test device, in particular to a dynamic performance test device for angular contact ball bearing retainers. The test device comprises a test main body, an electric main shaft, a frequency converter, a hydraulic loading system, a computer monitoring system and a data acquiring system, wherein the electric main shaft and the hydraulic loading system are respectively connected with the test main body; the frequency converter is connected with the electric main shaft; the electric main shaft provides power for the test main body; the hydraulic loading system provides a test load for the test main body; after the loading of the hydraulic loading system, a signal measured by a measuring device on the test main body and a test parameter of the frequency converter are respectively inputted to the data acquiring system; a signal output terminal of the data acquiring system is inputted in the computer monitoring system; a control signal of the computer monitoring system is inputted in the frequency converter; and the rotational speed of the electric main shaft is controlled through the frequency converter. The test device has the advantages of high reliability, wide measuring range, high sensitivity and resolution, and high response speed.
Description
Technical field
The present invention relates to a kind of tester for testing, specifically a kind of angular contact ball bearing cage dynamic performance test apparatus.
Background technology
Angular contact ball bearing is widely used in the mechanical systems such as variator, motor, instrument and meter, household electrical appliance.As very crucial parts of this class bearing, the dynamic property of retainer and reliability can have influence on the serviceability of whole bearing.Unreasonable when the retainer structural design, manufacturing accuracy is not high and operation conditions when bad, can cause the dynamic performance indexs such as retainer barycenter dynamic trajectory, the rate of skidding, pitch angle and angle of skew extremely unstable, can cause retainer fracture even bearing failure when serious.Therefore, monitoring retainer dynamic property seems extremely important in analyzing the bearing dynamic perfromance.
Because retainer has very high uncertainty in motion process, be difficult to the retainer under the motion state is tested, therefore, research to retainer Dynamic performance examination aspect is less, mostly launch from theoretical aspect, and do not have enough test figure theoretical analysis result to verify, greatly limited the flow of research of angular contact ball bearing cage.
Summary of the invention
Problem for being difficult in the prior art angular contact ball bearing cage under the motion state is tested the invention provides a kind of angular contact ball bearing cage dynamic performance test apparatus.
For addressing the above problem, the technical solution used in the present invention is:
A kind of angular contact ball bearing cage dynamic performance test apparatus, comprise trial body, the electricity main shaft, frequency converter, hydraulic loading system, computer supervisory control system and data acquisition system (DAS), the electricity main shaft is connected with trial body with hydraulic loading system and is connected, frequency converter is connected with electric main shaft, the electricity main shaft provides power for trial body, hydraulic loading system provides test load for trial body, the signal that measurement mechanism on the hydraulic loading system post loading test main body is measured and the test parameters of electric main shaft and frequency converter input to respectively data acquisition system (DAS), data acquisition system (DAS) signal output part input computer supervisory control system, the control signal input converter of computer supervisory control system is by the rotating speed of the electric main shaft of frequency converter realization control;
Described hydraulic loading system is arranged on the trial body, formed by axial charging assembly and radial loaded assembly, trial body comprises testing table base, left upper cover, load bearings, measurement mechanism, spring bearing, test axle system and upper right lid, described test axle is to comprise test axle, end cap, lining, fuel-feeding nozzle and test bearing, described test bearing is angular contact ball bearing, the test bearing inner ring is installed on the test axle, locked by set nut, the test bearing outer ring is installed in the lining, compressed by end cap, fuel-feeding nozzle is installed in the test axle; Load bearings and spring bearing are installed in respectively the two ends of test axle, and axially the loaded load of charging assembly and radial loaded assembly acts on respectively on the load bearings, and left upper cover and upper right lid are arranged on the top of trial body, make trial body form enclosed construction;
Described measurement mechanism is arranged on a side of test bearing, measurement mechanism comprises temperature sensor I, displacement transducer, displacement transducer mounting bracket and for detection of the speed pickup of test bearing retainer rotating speed, the temperature sensor I is arranged on the test bearing outer ring, displacement transducer is installed in radially reaching on the axial plane of displacement transducer mounting bracket, and the displacement sensor end is arranged on the test bearing outer ring;
Described speed pickup is comprised of the magnetic patch that is symmetricly set on test bearing retainer both sides, Hall element and Hall element mounting bracket, two magnetic patch are separated by 180 °, Hall element is fixed by the Hall element mounting bracket, and the signal that is used for reception retainer both sides magnetic patch calculates the rotating speed of retainer;
Described axial charging assembly is the closed assembly that has a style of one's own, be installed between testing table base and the left upper cover with the seam form, axially charging assembly comprises loading pipeline, hand-hydraulic cylinder, tensimeter, pressure transducer I and mounting bracket, the hand-hydraulic cylinder links to each other with the loading pipeline, load pipeline and be provided with pressure transducer and tensimeter, pressure transducer is fixed on the mounting bracket;
Described radial loaded assembly and left upper cover are integrated;
Trial body is driven by elastic coupling by electric main shaft, is that the test bearing of 60～120mm is tested to internal diameter;
Described load bearings and spring bearing are deep groove ball bearing;
Described displacement transducer is eddy current displacement sensor;
Described test unit also comprises the equipment lubrication system, the equipment lubrication system comprises the fuel tank I, the fuel tank II, oil feed pump, surplus valve, dump pump, return oil filter, the fuel feeding oil filter, refrigeratory, temperature sensor II and pressure transducer II, pipeline I one end is communicated with the fuel tank I, the pipeline I other end passes through oil feed pump successively, surplus valve and fuel feeding oil filter are communicated with the fuel tank II, the fuel tank II is communicated with the pipeline II, be provided with temperature sensor II and pressure transducer II on the pipeline II, the pipeline II is connected to come the lubrication experiment bearing with supplying oil burner nozzle, test axle in sealing is in the casing, scavenge pipe is housed, one end of scavenge pipe is communicated with the fuel tank I, is disposed with refrigeratory on the scavenge pipe, return oil filter and dump pump;
Described test axle is provided with matching used erecting tools in being;
Described Hall element is encapsulated in the end cap.
The invention has the beneficial effects as follows:
(1) this device is by arranging trial body, the electricity main shaft, frequency converter, hydraulic loading system, computer supervisory control system and data acquisition system (DAS), the electricity main shaft is connected with trial body with hydraulic loading system and is connected, frequency converter is connected with electric main shaft, the electricity main shaft provides power for trial body, hydraulic loading system provides test load for trial body, the signal that measurement mechanism on the hydraulic loading system post loading test main body is measured and the test parameters of electric main shaft and frequency converter input to respectively data acquisition system (DAS), data acquisition system (DAS) signal output part input computer supervisory control system, the control signal input converter of computer supervisory control system, realize the rotating speed of the electric main shaft of control by frequency converter, this test unit good reliability, measurement range is wide, highly sensitive, resolution is high, fast response time; Secondly, in trial body, test bearing is installed in the centre of test axle, load bearings and spring bearing are installed respectively in both sides, axially, radial load at first puts on load bearings, be delivered on the test axle by load bearings, and then be applied to test bearing, avoided load to directly act on test bearing and affect the performance test results; Measurement mechanism is arranged on a side of test bearing, comprise temperature sensor, displacement transducer and speed pickup, structure is installed rationally, can not only survey the retainer rotating speed, can also survey the dynamic properties such as retainer barycenter dynamic trajectory, the rate of skidding, pitch angle and angle of skew, contained the whole dynamic properties of retainer, and accuracy of detection be high, retainer barycenter displacement measurement precision can reach 0.001mm, makes measurement more reliable;
(2) this test unit trial body is driven by elastic coupling by high-frequency motor spindle, can be that the test bearing of 60～120mm is tested to internal diameter, and trial body is enclosed construction, can avoid impurity to enter casing.
Description of drawings
Fig. 1 principle of work block diagram of the present invention;
Fig. 2 trial body structural drawing of the present invention;
It is sketch that Fig. 3 the present invention tests axle;
Fig. 4 test bearing scheme of installation of the present invention;
Fig. 5 eddy current displacement sensor scheme of installation of the present invention;
Fig. 6 retainer speed measuring device of the present invention-Hall element scheme of installation;
Fig. 7 axial loading device structural drawing of the present invention;
Fig. 8 lubrication system works schematic diagram of the present invention;
Fig. 9 lubricating system oil temperature of the present invention control principle drawing;
Reference numeral: 1, the testing table base, 2, axial charging assembly, 3, left upper cover, 4, the radial loaded assembly, 5, load bearings, 6, measurement mechanism, 7, spring bearing, 8, test axle system (in the double dot dash line frame), 9, upper right lid, 10, the fuel tank I, 11, the fuel tank II, 12, oil feed pump, 13, surplus valve, 14, dump pump, 15, return oil filter, 16, the fuel feeding oil filter, 17, refrigeratory, 18, the temperature sensor II, 19, the pressure transducer II, 20, scavenge pipe, 21, the pipeline I, 22, the pipeline II, 2-1, load pipeline, 2-2, the hand-hydraulic cylinder, 2-3, tensimeter, 2-4, the pressure transducer I, 2-5, mounting bracket, 6-1, the temperature sensor I, 6-2, displacement transducer, 6-3, the displacement transducer mounting bracket, 6-4, the Hall element mounting bracket, 6-5, Hall element, 6-21, eddy current displacement sensor, 6-31, the eddy current displacement sensor mounting bracket, 8-1, the test axle, 8-2, end cap, 8-3, lining, 8-4, set nut, 8-5, fuel-feeding nozzle, 8-6, test bearing, 8-7, erecting tools.
Embodiment
Below in conjunction with specific embodiment the present invention is further elaborated.
A kind of angular contact ball bearing cage dynamic performance test apparatus, comprise trial body, the electricity main shaft, frequency converter, hydraulic loading system, computer supervisory control system and data acquisition system (DAS), the electricity main shaft is connected with trial body with hydraulic loading system and is connected, frequency converter is connected with electric main shaft, the electricity main shaft provides power for trial body, hydraulic loading system provides test load for trial body, the signal that measurement mechanism on the hydraulic loading system post loading test main body is measured and the test parameters of electric main shaft and frequency converter input to respectively data acquisition system (DAS), data acquisition system (DAS) signal output part input computer supervisory control system, the control signal input converter of computer supervisory control system is by the rotating speed of the electric main shaft of frequency converter realization control;
Described hydraulic loading system is arranged on the trial body, formed by axial charging assembly 2 and radial loaded assembly 4, trial body comprises testing table base 1, left upper cover 3, load bearings 5, measurement mechanism 6, spring bearing 7, the test axle is 8 and upper right lid 9, described test axle is 8 to comprise test axle 8-1, end cap 8-2, lining 8-3, fuel-feeding nozzle 8-5 and test bearing 8-6, described test bearing 8-6 is angular contact ball bearing, test bearing 8-6 inner ring is installed on the test axle 8-1, locked by set nut 8-4, test bearing 8-6 outer ring is installed in the lining 8-3, compressed by end cap 8-2, fuel-feeding nozzle 8-5 is installed in the test axle 8-1; Load bearings 5 and spring bearing 7 are installed in respectively the two ends of test axle 8-1, axially the loaded load of charging assembly 2 and radial loaded assembly 4 acts on respectively on the load bearings 5, left upper cover 3 and upper right lid 9 are arranged on the top of trial body, make trial body form enclosed construction;
Described measurement mechanism 6 is arranged on the side of test bearing 8-6, measurement mechanism 6 comprises temperature sensor I 6-1, displacement transducer 6-2, displacement transducer mounting bracket 6-3 and for detection of the speed pickup of test bearing 8-6 retainer rotating speed, temperature sensor I 6-1 is arranged on the test bearing 8-6 outer ring, displacement transducer 6-2 is installed in radially reaching on the axial plane of displacement transducer mounting bracket 6-3, and displacement transducer 6-2 measuring junction is arranged on the test bearing 8-6 outer ring;
Described speed pickup is comprised of the magnetic patch that is symmetricly set on test bearing 8-6 retainer both sides, Hall element 6-5 and Hall element mounting bracket 6-4, two magnetic patch are separated by 180 °, Hall element 6-5 fixes by Hall element mounting bracket 6-4, and the signal that is used for reception retainer both sides magnetic patch calculates the rotating speed of retainer;
Described radial loaded assembly 4 is integrated with left upper cover 3; Described axial charging assembly 2 is the closed assembly that has a style of one's own, be installed between testing table base 1 and the left upper cover 3 with the seam form, axially charging assembly 2 comprises loading pipeline 2-1, hand-hydraulic cylinder 2-2, tensimeter 2-3, pressure transducer I 2-4 and mounting bracket 2-5, hand-hydraulic cylinder 2-2 links to each other with loading pipeline 2-1, load pipeline 2-1 and be provided with pressure transducer 2-4 and tensimeter 2-3, pressure transducer 2-4 is fixed on the mounting bracket 2-5;
Trial body is driven by elastic coupling by electric main shaft, is that the test bearing of 60～120mm is tested to internal diameter;
Described load bearings 5 and spring bearing 7 are deep groove ball bearing;
Described displacement transducer 6-2 is eddy current displacement sensor 6-21;
Described test unit also comprises the equipment lubrication system, the equipment lubrication system comprises fuel tank I 10, fuel tank II 11, oil feed pump 12, surplus valve 13, dump pump 14, return oil filter 15, fuel feeding oil filter 16, refrigeratory 17, temperature sensor II 18 and pressure transducer II 19, pipeline I 21 1 ends are communicated with fuel tank I 10, pipeline I 21 other ends are successively by oil feed pump 12, surplus valve 13 and fuel feeding oil filter 16 are communicated with fuel tank II 11, fuel tank II 11 is communicated with pipeline II 22, be provided with temperature sensor II 18 and pressure transducer II 19 on the pipeline II 22, pipeline II 22 is connected to come lubrication experiment bearing 8-6 with supplying oil burner nozzle 8-5, test axle in sealing is in 8 casings, scavenge pipe 20 is housed, one end of scavenge pipe 20 is communicated with fuel tank I 10, is disposed with refrigeratory 17 on the scavenge pipe 20, return oil filter 15 and dump pump 14;
Described test axle is to be provided with matching used erecting tools 8-7 in 8;
Described Hall element 6-5 is encapsulated among the end cap 8-2.
As shown in Figure 1, this test unit comprises trial body, electric main shaft, frequency converter, equipment lubrication system, hydraulic loading system, electric control system, computer supervisory control system and data acquisition system (DAS).Trial body can be simulated different tests operating mode (rotating speed) by frequency converter, electric main shaft and electric control system; Hydraulic loading system provides test load for test bearing, the real work load of simulation test bearing; The equipment lubrication system provides lubricated for test bearing and block bearing, and by to the heating of fuel tank lubricating oil, thereby to the test bearing heating, the working temperature of simulation test bearing, native system also possesses the function of carrying out cooling and lubricating for block bearing; Computer supervisory control system can monitor process of the test, normally carries out with warranty test; The record of test parameters and processing are finished by data acquisition system (DAS);
This test unit trial body structure as shown in Figure 2, trial body is driven by elastic coupling by high-frequency motor spindle, can be that the test bearing of 60～120mm is tested to internal diameter, testing table base 1 is fixed in the earth, axially charging assembly 2 is used for applying axial load, eliminates end-play to the impact of test; Left upper cover 3 and upper right lid 9 are positioned at trial body top, make trial body form enclosed construction, avoid impurity to enter casing; Radial loaded assembly 4 applies radial load for test bearing; The bearing temperature that measurement mechanism 6 is used under the surveying work state, and retainer is axial, radial displacement; Spring bearing 7 is in the 8(double dot dash line frame for the test axle) provide support;
This test unit test axle be sketch as shown in Figure 3, the bearing at two ends, the left and right sides is respectively load bearings 5, spring bearing 7, the type of load bearings and spring bearing is deep groove ball bearing; Axially, radial load at first puts on load bearings 5, is delivered on the test axle 8-1 by load bearings 5, and then is applied to test bearing 8-6, middle bearing is test bearing 8-6, test bearing 8-6 type is angular contact ball bearing;
This test unit test bearing scheme of installation as shown in Figure 4, test bearing 8-6 inner ring is installed on the test axle 8-1, is locked by set nut 8-4; Test bearing 8-6 is installed in the lining 8-3, compressed by end cap 8-2, the relative position of test bearing 8-6 Internal and external cycle guarantees by the seam of lining 8-3, during test, realize rotary actuation by test axle 8-1 motoring ring test bearing 8-6 inner ring, test bearing 8-6 outer ring is relatively static; 1# temperature sensor 6-1 leans against on the test bearing 8-6 outer ring and realizes temperature survey; Fuel-feeding nozzle 8-5 is installed on provides ring lower lubricated in the test axle 8-1; Displacement transducer 6-2 is installed in radially reaching on the axial plane of displacement transducer mounting bracket 6-3, realizes the measurement to test bearing 8-6 retainer barycenter dynamic trajectory and pitch angle and angle of skew; During installation, because test bearing 8-6 is the separated type bearing, specialized designs is supporting erecting tools is to realize the correct installation of test bearing 8-6 and relevant original paper;
The eddy current displacement sensor scheme of installation as shown in Figure 5, the motion of retainer in X-Y plane radially measured by 2 orthogonal eddy current displacement sensor 6-21, at axial location, pitch angle and barycenter axial displacement that other 3 eddy current displacement sensor 6-21 are used for measuring retainer have been installed, because eddy current displacement sensor 6-21 induction area is large, in measuring process, should avoid non-measurement thing to appear in the measurement range of sensor, in order to avoid affect picking up of measuring-signal, cause the signal quality that detects undesirable, in addition, when using together, a plurality of sensors should avoid the too close of installation of sensors, and when measured material does not have enough sizes, width is less than 2 times of the sensor probe diameter, thickness is during less than 1mm, the curve of the reaction that obtains is false, false, for ease of the installation adjustment of eddy current displacement sensor 6-21, eddy current displacement sensor mounting bracket 6-31 is slit into two halves along the thick dashed line position after machining;
This test unit retainer speed measuring device-Hall element scheme of installation as shown in Figure 6, the interval 180 on the reference field of test bearing 8-6 retainer
Symmetry is inlayed two
The magnetic patch of 3mm, be that Hall element is encapsulated among as shown in Figure 6 the end cap 8-2 with magneto sensor, test bearing 8-6 outer ring is pushed down in the side end face of this end cap 8-2, limit test bearing 8-6 on suitable measuring position, the Hall element mounting bracket 6-4 that the measure portion of Hall element 6-5 places brass to make, three transmission lines are then drawn by adjacent groove;
This test unit axial loading device structure as shown in Figure 7, it is 8 axial float for the Elimination test axle, must be 8 axially to load to testing axle before the test, the axial loading of test bearing, radial loaded, adopt the diaphragm type oil cylinder to apply operating load, hydraulic loading system hand-hydraulic cylinder 2-2 sends pressure oil into respectively axial loading, radial loaded pressure-loaded pipeline 2-1, produce displacement by rubber membrane distortion, piston, axial, radial load be applied to respectively the axial loading cover of load bearings and radially on the lining, and then be delivered on the test bearing;
This test unit lubrication system works principle as shown in Figure 8, the native system principle of work is: oil feed pump 12 is sent into fuel tank II 11 with the oil of fuel tank I 10 through surplus valve 13, fuel feeding oil filter 16, pass through again pipeline, by supplying oil burner nozzle 8-5 lubrication test bearing 8-6, test axle in sealing is in 8 casings, and scavenge pipe is housed, and by dump pump 14 oil is withdrawn into fuel tank I 10, in order to protect dump pump, be provided with refrigeratory 17 and return oil filter 15 at pipeline; Also be provided with temperature sensor II 18 and pressure transducer II 19 in the pipeline simultaneously;
This lubricating system oil temperature control principle as shown in Figure 9, adopt computing machine or manually provide parameter to the Intelligent PID Control instrument, the break-make of Intelligent Instrument control solid-state relay, make heating element work, temperature sensor is measured temperature signal and is fed back to Intelligent Instrument and carry out PID and regulate, thereby forms the closed-loop control to temperature;
Data acquisition system (DAS) is used for recording and the Processing Test data, the experimental data that observation interface can show comprises: test bearing retainer barycenter radial displacement figure, retainer pitch angle, retainer angle of skew, the retainer rate of skidding, the user can be in observation interface window entering spindle rotating speed and test duration, and records as required desired data.
Claims (9)
1. angular contact ball bearing cage dynamic performance test apparatus, it is characterized in that: comprise trial body, the electricity main shaft, frequency converter, hydraulic loading system, computer supervisory control system and data acquisition system (DAS), the electricity main shaft is connected with trial body with hydraulic loading system and is connected, frequency converter is connected with electric main shaft, the electricity main shaft provides power for trial body, hydraulic loading system provides test load for trial body, the signal that measurement mechanism on the hydraulic loading system post loading test main body is measured and the test parameters of electric main shaft and frequency converter input to respectively data acquisition system (DAS), data acquisition system (DAS) signal output part input computer supervisory control system, the control signal input converter of computer supervisory control system is by the rotating speed of the electric main shaft of frequency converter realization control;
Described hydraulic loading system is arranged on the trial body, formed by axial charging assembly (2) and radial loaded assembly (4), trial body comprises testing table base (1), left upper cover (3), load bearings (5), measurement mechanism (6), spring bearing (7), test axle system (8) and upper right lid (9), described test axle system (8) comprises test axle (8-1), end cap (8-2), lining (8-3), fuel-feeding nozzle (8-5) and test bearing (8-6), described test bearing (8-6) is angular contact ball bearing, test bearing (8-6) inner ring is installed on the test axle (8-1), locked by set nut (8-4), test bearing (8-6) outer ring is installed in the lining (8-3), compressed by end cap (8-2), fuel-feeding nozzle (8-5) is installed in the test axle (8-1); Load bearings (5) and spring bearing (7) are installed in respectively the two ends of test axle (8-1), axially the loaded load of charging assembly (2) and radial loaded assembly (4) acts on respectively on the load bearings (5), left upper cover (3) and upper right lid (9) are arranged on the top of trial body, make trial body form enclosed construction;
Described measurement mechanism (6) is arranged on a side of test bearing (8-6), measurement mechanism (6) comprises temperature sensor I (6-1), displacement transducer (6-2), displacement transducer mounting bracket (6-3) and for detection of the speed pickup of test bearing (8-6) retainer rotating speed, temperature sensor I (6-1) is arranged on test bearing (8-6) outer ring, displacement transducer (6-2) is installed in radially reaching on the axial plane of displacement transducer mounting bracket (6-3), and displacement transducer (6-2) measuring junction is arranged on test bearing (8-6) outer ring;
Described speed pickup is comprised of the magnetic patch that is symmetricly set on test bearing (8-6) retainer both sides, Hall element (6-5) and Hall element mounting bracket (6-4), two magnetic patch are separated by 180 °, Hall element (6-5) is fixing by Hall element mounting bracket (6-4), and the signal that is used for reception retainer both sides magnetic patch calculates the rotating speed of retainer.
2. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1, it is characterized in that: described axial charging assembly (2) is the closed assembly that has a style of one's own, be installed between testing table base (1) and the left upper cover (3) with the seam form, axially charging assembly (2) comprises loading pipeline (2-1), hand-hydraulic cylinder (2-2), tensimeter (2-3), pressure transducer I (2-4) and mounting bracket (2-5), hand-hydraulic cylinder (2-2) links to each other with loading pipeline (2-1), load pipeline (2-1) and be provided with pressure transducer (2-4) and tensimeter (2-3), pressure transducer (2-4) is fixed on the mounting bracket (2-5).
3. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1 is characterized in that: described radial loaded assembly (4) is integrated with left upper cover (3).
4. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1, it is characterized in that: trial body is driven by elastic coupling by electric main shaft, is that the test bearing of 60～120mm is tested to internal diameter.
5. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1, it is characterized in that: described load bearings (5) and spring bearing (7) are deep groove ball bearing.
6. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1, it is characterized in that: described displacement transducer (6-2) is eddy current displacement sensor (6-21).
7. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1, it is characterized in that: described test unit also comprises the equipment lubrication system, the equipment lubrication system comprises fuel tank I (10), fuel tank II (11), oil feed pump (12), surplus valve (13), dump pump (14), return oil filter (15), fuel feeding oil filter (16), refrigeratory (17), temperature sensor II (18) and pressure transducer II (19), pipeline I (21) one ends are communicated with fuel tank I (10), pipeline I (21) other end is successively by oil feed pump (12), surplus valve (13) and fuel feeding oil filter (16) are communicated with fuel tank II (11), fuel tank II (11) is communicated with pipeline II (22), be provided with temperature sensor II (18) and pressure transducer II (19) on the pipeline II (22), pipeline II (22) is connected to come lubrication experiment bearing (8-6) with supplying oil burner nozzle (8-5), in test axle system (8) casing of sealing, scavenge pipe (20) is housed, one end of scavenge pipe (20) is communicated with fuel tank I (10), is disposed with refrigeratory (17) on the scavenge pipe (20), return oil filter (15) and dump pump (14).
8. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1, it is characterized in that: described Hall element (6-5) is encapsulated in the end cap (8-2).
9. a kind of angular contact ball bearing cage dynamic performance test apparatus as claimed in claim 1 is characterized in that: be provided with matching used erecting tools (8-7) in the described test axle system (8).
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