CN203643167U - Temperature and axial thermal displacement test device for angular contact ball bearing - Google Patents
Temperature and axial thermal displacement test device for angular contact ball bearing Download PDFInfo
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- CN203643167U CN203643167U CN201320839516.6U CN201320839516U CN203643167U CN 203643167 U CN203643167 U CN 203643167U CN 201320839516 U CN201320839516 U CN 201320839516U CN 203643167 U CN203643167 U CN 203643167U
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Abstract
The utility model discloses a temperature and axial thermal displacement test method and device for a bearing. The test device comprises sizing blocks, an experiment base body, a T-shaped substrate, a micro-displacement regulator, a micro-displacement regulator mounting plate, a dispersion confocal displacement meter, lower bearing seats, upper bearing seats, a shafting, axial assistors, a test mechanism, a shaft coupling, a servo motor, thermal resistance sensors, an infrared thermometer and a computer. Compared with the prior art, the temperature and axial thermal displacement test device for the bearing has the advantages that the test device is simple, the precision of the axial assistors is high, and the operation is convenient; the rotating speed of the bearing is controlled by a plc (programmable logic controller) through programming, and the stepless adjustment is available; the universality is high, a bearing sleeve is adopted for the installation of the bearing, and by changing the bearing sleeve, bearings with different inner and outer diameter parameters can be tested; in addition, the test principle is clear, the sensors are simple and easy to use, values are displayed by a digital display instrument and a display, and the values can be read freely.
Description
Technical field
The utility model belongs to field of measuring technique, particularly a kind of angular contact ball bearing temperature, Axial Thermal displacement tester and experimental technique.
Background technology
At present, machine tool feed speed is further promoted, and improves fast as the angular contact ball bearing heat-dissipating amount of the main thermogenesis component of feed system.According to statistics, the mismachining tolerance causing due to Machine Tool Feeding System thermal deformation accounts for lathe total error up to 70%, and bearing temperature abnormal ascending, can cause surface of contact material temper softening simultaneously, finally causes bearing premature fatigue to lose efficacy.
Although have temperature field and the thermal deformation of a lot of researchers diagonal angle contact ball bearing to conduct in-depth research analysis, but mostly rest on theoretical analysis and software emulation aspect, in actual conditions, the viscosity variation factor of the convection transfer rate on bearing border and lubricant is difficult to determine, therefore from the angle analysis of experiment, temperature, the Axial Thermal displacement of the angular contact ball bearing in different rotating speeds, axial force seem especially important.
At present, though there are part Study personnel to carry out experiment test to the temperature of electric mainshaft bearing, but also just rest on the temperature level that gathers bearing outer ring external cylindrical surface, and temperature, the experiment of Axial Thermal displacement measurement to feed system angular contact ball bearing is almost blank
.
Utility model content
The utility model object is to provide a kind of temperature of angular contact ball bearing and method of testing and the experimental provision of Axial Thermal displacement, it can measure the thermal parameter of bearing under different rotating speeds, axial load fast, can accelerate the improvement to bearing workmanship, also can be Machine Tool Feeding System leading screw prestretched amount theoretical foundation is provided.
Realizing technical solution of the present utility model is: a kind of angular contact ball bearing temperature, Axial Thermal displacement tester, comprise parallels, experiment matrix, T-shaped substrate, motor base, servomotor, shaft coupling, axle system, axial assistor, thermal resistance sensor, top chock, step, the confocal displacement meter of dispersion, micrometric displacement regulator, micrometric displacement regulator installing plate, round end dive key, register pin, PC, thermal resistance sensor display instrument, power sensor display instrument, frequency converter, infrared thermometer;
The quantity of parallels is four, these four blocks of parallels are arranged on the bottom of experiment matrix, the top T-shaped substrate that is connected of experiment matrix, the top of the T-shaped substrate motor base that is connected, servomotor is by highly regulating pad to be arranged on motor base, and motor shaft is connected with axle system by shaft coupling; The top of T-shaped substrate two steps that are also connected, a top chock is all connected above each step, axle is between two cover top chocks and step, and axially the quantity of assistor is two, and these two axial assistors are symmetricly set on the both sides of axle system; On the bearing outer ring of axle system, thermal resistance sensor is set;
The top of experiment matrix also arranges micrometric displacement regulator installing plate, the top of the micrometric displacement regulator installing plate micrometric displacement regulator that is connected, the confocal displacement meter clamping of dispersion is on micrometric displacement regulator, for measuring the axial displacement of axle system, round end dive key, register pin are between step and T-shaped substrate, for improving the axial guiding accuracy of step and reducing the torsional error in surface level;
The confocal displacement meter of dispersion is connected with PC, the data transmission that confocal dispersion displacement meter is detected is to PC, PC is connected with servomotor by frequency converter, the work of control servomotor, thermal resistance sensor is connected with thermal resistance sensor display instrument, axially assistor is connected with power sensor display instrument, and infrared thermometer is positioned at the end of axle system, for measuring the temperature that axle is centre bearer inner ring.
Axle system comprises that key, axle and the identical bearing assembly of two covers, this two covers bearing assembly are symmetricly set on the two ends of axle, and every cover bearing assembly includes bearing, shaft end nut and bearing holder (housing, cover); Wherein clutch shaft bearing assembly comprises clutch shaft bearing cover, bearing, shaft end nut, and clutch shaft bearing puts three bolts hole are set, and is symmetrical arranged two dowel holes on the bearing holder (housing, cover) in the second bearing assembly;
Wherein bearing inner race and axle are interference fit, and the inner ring of bearing is locked on axle by shaft end nut, bearing outer ring and clutch shaft bearing cover interference fit, and bearing holder (housing, cover) is bolted between top chock and step.
Axially assistor comprises axial rubber ring, axial rubber ring mounting base, axial right screw rod, axially loads nut, axial left screw rod, power installation of sensors base plate, power sensor, boosting-rod;
Wherein, the small column of axial right screw rod end is through the cylindrical hole in the middle of axial rubber ring mounting base, and be inserted in axial rubber ring, axial right screw rod is by external thread and a side screw-internal thread fit that axially loads nut, boosting-rod is inserted in axial loading nut, axially loading nut coordinates with axial left screw rod by its opposite side internal thread, axial left screw rod and power installation of sensors base plate are clearance fit, axial left screw rod is inserted into by the small column of end in the cylindrical hole of power installation of sensors base plate, power installation of sensors base plate and power sensor are connected by four bolts, power sensor is connected with power sensor display instrument by wire, the axial force numerical value finally applying shows by power sensor display instrument.
Micrometric displacement regulator comprises and moves radially vernier adjustment knob, moves radially plate, moves radially guide groove, the confocal displacement meter mounting seat of dispersion, moves axially guide groove, moves axially plate, moves axially vernier adjustment knob, micrometric displacement regulating base board, highly regulates backing plate, spring, tights a bolt;
Wherein, micrometric displacement regulating base board is positioned at the top that highly regulates backing plate, moving radially plate is connected with micrometric displacement regulating base board by moving radially guide groove, and carrying out elasticity by spring and micrometric displacement regulating base board is connected, moving radially vernier adjustment knob is connected in and moves radially on plate, move axially plate by moving axially guide groove and moving radially plate and be connected, move axially intralamellar part by spring with move radially plate and carry out elasticity and be connected, moving axially vernier adjustment knob is connected in and moves axially on plate, the confocal displacement meter mounting seat of dispersion is moving axially on plate by 4 bolted, tight a bolt and be positioned in the confocal displacement meter mounting seat of dispersion, the confocal displacement meter of dispersion is contained in the confocal displacement meter mounting seat of dispersion cylindrical hole, and clamp by tighting a bolt.
The quantity of thermal resistance sensor is six, and these six thermal resistance sensors are evenly arranged in bearing outer ring side, is undertaken cementingly by high-temp glue, and inner ring point for measuring temperature is similarly six, is evenly distributed on bearing inner race side, measures by infrared temperature temperature measurer.
A kind of based on above-mentioned angular contact ball bearing temperature, Axial Thermal displacement measurement method and experimental provision, comprise the following steps:
S101, detected bearing is applied to axial force, by its rotation of driven by motor; Concrete grammar is: boosting-rod boosting-rod is inserted in the hole of axial loading nut and rotation; Utilize PLC to programme, bearing is rotated;
Internal and external cycle temperature and Axial Thermal shift value when S102, the detected bearing of detection rotate, obtain bearing enclose temperature, Axial Thermal displacement detecting data; Final Internal and external cycle temperature, Axial Thermal shift value and the relation of time that obtains bearing; After data acquisition completes, according to Internal and external cycle temperature-time and the Axial Thermal shift value-time relationship of detected bearing, obtain the hot rigidity of bearing;
S103, judge whether the Internal and external cycle temperature of bearing and Axial Thermal shift value reach stationary value or fluctuation, if reach stationary value, enter step S104, if step S102 is returned in fluctuation; Measuring after the Internal and external cycle temperature and Axial Thermal shift value of detected bearing, in the time that bearing enclose temperature fluctuates within the scope of ± 0.2 ℃, detection of end test;
S104, the inside and outside circle temperature that reads bearing and Axial Thermal displacement numerical value, and according to inside and outside circle temperature-time of the data creating bearing gathering in experimentation, the transient curve of Axial Thermal displacement-time, pass through test of many times, obtain the inside and outside circle temperature-rotating speed of bearing, Axial Thermal displacement-rotating speed, the inside and outside circle temperature-axial force of bearing, the stable state curve of Axial Thermal displacement-axial force.
Compared with prior art, its remarkable advantage is the utility model: (1) highly versatile, rotating speed provided by the utility model and axial force size all can meet rotating speed and the prestretching force of Machine Tool Feeding System bearing.(2) rotational speed regulation is convenient and swift, and the utility model takes motor speed by the private of PLC programming Control, thus pilot angle contact ball bearing rotating speed, rotational speed regulation scope is wide, and precision is high.(3) axially boosting mechanism is simple, and cost is low, by spiral reinforcing, electrodeless adjustable, and by the reinforcing of axle symmetria bilateralis, prevents moment of flexure, is subject to the situation of unidirectional axial force to meet feed system bearing.(4) regulating structure for micro displacement precision is high, highly regulates pad by regulating two knobs and changing, and can meet the right alignment of the confocal displacement meter of dispersion and axle system, and the focus of the confocal displacement meter of dispersion can be fixed on to axial end.(5) shafting structure highly versatile, the design can meet by changing bearing holder (housing, cover) the object that different shaft diameter bearings are tested, and by the clearance fit of cage face A and inner hole of bearing seat, can realize the continuous loading of axial force.(6) selected instrument is workable, and institute's test result all shows by numerical value, can directly read, without aftertreatment, convenient and swift.
Accompanying drawing explanation
Fig. 1 is angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester test method process flow diagram.
Fig. 2 is angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester overall construction drawing.
Fig. 3 is angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester shafting structure figure, and wherein (a) is general assembly drawing, is (b) sectional view.
Fig. 4 is that angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester axially load and mechanism for testing structural drawing.
Fig. 5 is angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester micrometric displacement controller structure figure.
Fig. 6 is angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester sensor arrangement figure.
Fig. 7 is angular contact ball bearing temperature of the present utility model, Axial Thermal displacement tester control system process flow diagram.
specific implementation method
The utility model is for testing internal diameter φ 30～φ 60, the parameter such as Internal and external cycle temperature, Axial Thermal displacement of the angular contact ball bearing in external diameter φ 55～φ 110 scopes under different rotating speeds and axial load.
Core concept of the present utility model is, detected bearing applied to an axial pre tightening force, and rotated by driven by motor bearing, and Internal and external cycle temperature, Axial Thermal shift value when detecting in real time bearing and rotating, in order to measure accordingly the hot rigidity of bearing.In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1, represent the process flow diagram of the utility model bearing temperature, Axial Thermal displacement detecting test method.This test method mainly comprises the following steps:
S101, detected bearing is applied to certain axial force, by its rotation of driven by motor.Concrete grammar is that boosting-rod 8h boosting-rod is inserted in the appropriate bore of axial loading nut 8d and rotation; Utilize PLC to programme, bearing is rotated under the rotating speed of subscribing.
Internal and external cycle temperature and Axial Thermal shift value when S102, the detected bearing of detection rotate, obtain bearing enclose temperature, Axial Thermal displacement detecting data.In the present embodiment, the Internal and external cycle temperature can detect bearing rotation by temperature sensor simply time, reads bearing shaft thermotropism shift value by the confocal displacement meter of dispersion.Final Internal and external cycle temperature, Axial Thermal shift value and the relation of time that obtains bearing.After data acquisition completes, according to Internal and external cycle temperature-time and the Axial Thermal shift value-time relationship of detected bearing, can obtain the hot rigidity of bearing.
Whether S103, the Internal and external cycle temperature that judges bearing and Axial Thermal shift value maintain stable value or fluctuate in a certain scope within a period of time; if; enter step S104; if not; return to step S102; general, can design temperature, a conditioned disjunction combination in any in the Axial Thermal shift value condition of shutting down as test.In this example, measuring after the Internal and external cycle temperature and Axial Thermal shift value of detected bearing, in the time that bearing enclose temperature fluctuates within the scope of ± 0.2 ℃, detection of end test.
S104, read inside and outside circle temperature and the Axial Thermal displacement numerical value of bearing under certain axial force, rotating speed operating mode, and can be according to inside and outside circle temperature-time of the data creating bearing gathering in experimentation, the transient curve of Axial Thermal displacement-time.The axial force or the rotating speed that change test bearing by unitary variant method, test of many times, can obtain the inside and outside circle temperature-rotating speed of bearing, Axial Thermal displacement-rotating speed, the inside and outside circle temperature-axial force of bearing, the stable state curve of Axial Thermal displacement-axial force.
Describe for concrete structure, the principle of work of the test unit of realizing this test method below.
Referring to Fig. 2, a kind of angular contact ball bearing temperature, Axial Thermal displacement tester, comprise that parallels 1, experiment matrix 2, T-shaped substrate 3, motor base 4, servomotor 5, shaft coupling 6, axle are 7, axially assistor 8, thermal resistance sensor 9, top chock 10, step 11, the confocal displacement meter 12 of dispersion, micrometric displacement regulator 13, micrometric displacement regulator installing plate 14, round end dive key 15, register pin 16, PC 17, thermal resistance sensor display instrument 18, power sensor display instrument 19, frequency converter 20, infrared thermometer 21;
The quantity of parallels 1 is four, these four blocks of parallels are arranged on the bottom of experiment matrix 2, the top T-shaped substrate 3 that is connected of experiment matrix 2, the top of T-shaped substrate 3 motor base 4 that is connected, servomotor 5 is by highly regulating pad to be arranged on motor base 4, and motor shaft is 7 to be connected by shaft coupling 6 and axle; The top of T-shaped substrate 3 two steps 11 that are also connected, each step 11 tops top chock 10 that is all connected, axle is 7 between two cover top chocks 10 and step 11, and axially the quantity of assistor 8 is two, and it is 7 both sides that these two axial assistors are symmetricly set on axle; Axle is, on 7 bearing outer ring, thermal resistance sensor 9 is set;
The top of experiment matrix 2 also arranges micrometric displacement regulator installing plate 14, the top of the micrometric displacement regulator installing plate 14 micrometric displacement regulator 13 that is connected, confocal displacement meter 12 clampings of dispersion are on micrometric displacement regulator 13, be 7 axial displacement for measuring axle, round end dive key 15, register pin 16 are between step 11 and T-shaped substrate 3, for improving the axial guiding accuracy of step 11 and reducing the torsional error in surface level;
The confocal displacement meter 12 of dispersion is connected with PC 17, the data transmission that confocal dispersion displacement meter 12 is detected is to PC 17, PC 17 is connected with servomotor 5 by frequency converter 20, controlling servomotor 5 works, thermal resistance sensor 9 is connected with thermal resistance sensor display instrument 18, axially assistor 8 is connected with power sensor display instrument 19, and it is 7 end that infrared thermometer 21 is positioned at axle, for measuring the temperature that axle is 7 centre bearer inner rings.
Axle is 7 to comprise key 7a, axle 7c and the identical bearing assembly of two covers, and this two covers bearing assembly is symmetricly set on the two ends of axle 7c, and every cover bearing assembly includes bearing, shaft end nut and bearing holder (housing, cover); Wherein clutch shaft bearing assembly comprises clutch shaft bearing cover 7f, bearing 7d, shaft end nut 7e, on clutch shaft bearing cover 7f, three bolts hole is set, and is symmetrical arranged two dowel hole 7g on the bearing holder (housing, cover) 7b in the second bearing assembly;
Its centre bearer 7d inner ring and axle 7c are interference fit, and it is upper that the inner ring of bearing 7d is locked at axle 7c by shaft end nut 7e, bearing 7d outer ring and clutch shaft bearing cover 7f interference fit, and bearing holder (housing, cover) 7f is bolted between top chock 10 and step 11.
Axially assistor 8 comprises axial rubber ring 8a, axial rubber ring mounting base 8b, axial right screw rod 8c, axially loads nut 8d, axial left screw rod 8e, power installation of sensors base plate 8f, power sensor 8g, boosting-rod 8h;
Wherein, the small column of axial right screw rod 8c end is through the cylindrical hole in the middle of axial rubber ring mounting base 8b, and be inserted in axial rubber ring 8a, axial right screw rod 8c is by external thread and a side screw-internal thread fit that axially loads nut 8d, boosting-rod 8h is inserted in axial loading nut 8d, axially loading nut 8d coordinates with axial left screw rod 8e by its opposite side internal thread, axial left screw rod 8e and power installation of sensors base plate 8f are clearance fit, axial left screw rod 8e is inserted into by the small column of end in the cylindrical hole of power installation of sensors base plate 8f, power installation of sensors base plate 8f and power sensor 8g are connected by four bolts, power sensor 8g is connected with power sensor display instrument 19 by wire, the axial force numerical value finally applying shows by power sensor display instrument 19.
Micrometric displacement regulator 13 comprise move radially vernier adjustment knob 13a, move radially plate 13b, move radially guide groove 13c, the confocal displacement meter mounting seat of dispersion 13d, move axially guide groove 13e, move axially plate 13f, move axially vernier adjustment knob 13g, micrometric displacement regulating base board 13h, highly regulate backing plate 13i, spring 13j, 13k tights a bolt;
Wherein, micrometric displacement regulating base board 13h is positioned at the top that highly regulates backing plate 13i, moving radially plate 13b is connected with micrometric displacement regulating base board 13h by moving radially guide groove 13c, and carrying out elasticity by spring 13j with micrometric displacement regulating base board 13h is connected, moving radially vernier adjustment knob 13a is connected in and moves radially on plate 13b, move axially plate 13f by moving axially guide groove 13e and moving radially plate 13b and be connected, move axially plate 13f inside by spring with move radially plate 13b and carry out elasticity and be connected, moving axially vernier adjustment knob 13g is connected in and moves axially on plate 13f, the confocal displacement meter 13d of dispersion mounting seat is moving axially on plate 13f by 4 bolted, the 13k that tights a bolt is positioned on the confocal displacement meter mounting seat of dispersion 13d, the confocal displacement meter 12 of dispersion is contained in the confocal displacement meter mounting seat of dispersion 13d cylindrical hole, and clamp by the 13k that tights a bolt.
The quantity of thermal resistance sensor 9 is six, these six thermal resistance sensors 9 are evenly arranged in side, bearing 7d outer ring, are undertaken cementingly by high-temp glue, and inner ring point for measuring temperature is similarly six, be evenly distributed on bearing 7d inner ring side, measure by infrared temperature temperature measurer.
Applying by axial assistor 8 of axial force realizes, bearing rotating speed utilizes PLC to carry out programming Control by PC 17, temperature sensor adopts thermal resistance sensor 9 and infrared temperature sensor 21, by be evenly arranged 6 thermal resistance sensors in bearing outer ring side, and adopt high-temp glue to bond, and finally ask its mean value, obtain bearing outer ring temperature value with this, bearing inner race temperature is surveyed 6 temperature by infrared thermometer, adopts the method for averaging to obtain.Axial Thermal displacement gathers by the confocal displacement meter 12 of dispersion, and thermal walking value shows in real time by PC 17 bundled softwares.
Referring to Fig. 3, axle is that 7 centre bearer 7d inner rings and axle 7c are interference fit, inner ring is locked by shaft end nut 7e, outer ring and bearing holder (housing, cover) 7f are interference fit, bearing holder (housing, cover) 7f is secured by bolts between top chock 10, step 11, when bearing holder (housing, cover) 7b installs, cylindrical hole between face A and top chock 10, step 11 is clearance fit, certain gap is left in face B and top chock 10, step 11 sides, and position by two symmetrical straight pins and top chock 10, step 11, be convenient to applying continuously of axial force.
Referring to Fig. 4, when assembling, the small column of axial right screw rod 8c end is through the cylindrical hole in the middle of axial rubber ring mounting base 8b, and be inserted in axial rubber ring 8a, axial right screw rod 8c coordinates with a side internal thread that axially loads nut 8d by external thread, boosting-rod 8h is inserted in axial loading nut 8d, axially loading nut 8d coordinates with axial left screw rod 8e by its opposite side internal thread, axial left screw rod 8e and power installation of sensors base plate 8f are clearance fit, axial left screw rod 8e is inserted into by the small column of end in the cylindrical hole of power installation of sensors base plate 8f, power installation of sensors base plate 8f and power sensor 8g are connected by four bolts, power sensor 8g is connected with power sensor display instrument 19 by wire, the axial force numerical value finally applying shows by power sensor display instrument 19.
Axially load in nut 8d, left and right sides is respectively dextrorotation, levogyrate inner thread, respectively with axial right screw rod 8c, axial left screw rod 8e is connected, carry out reinforcing by boosting-rod 8h being inserted to rotating nut in the different holes that axially load nut 8d, axial rubber ring 8a is closely connected and both can have made bearing holder (housing, cover) stressed evenly with bearing holder (housing, cover), can prevent that again axial right screw rod 8c is with loading nut rotation, power sensor 8g contacts with bearing holder (housing, cover), measuring numerical value shows by power sensor display instrument 19, by by axle be both sides power sensor survey axial force be added, be the suffered axial force of bearing.
Referring to Fig. 5, in micrometric displacement regulator 13, micrometric displacement regulating base board 13h is positioned at the top that highly regulates backing plate 13i to be positioned at, moving radially plate 13b coordinates with micrometric displacement regulating base board 13h by moving radially guide groove 13c, and carry out elasticity connection by spring 13j, move radially vernier adjustment knob 13a by rotation and realize relative the moving radially that moves radially plate 13b and micrometric displacement regulating base board 13h, move axially plate 13f by moving axially guide groove 13e and moving radially plate 13b and coordinate, elasticity connection is carried out by spring in inside, moving vernier adjustment knob 13g by axial rotary realizes and moves axially plate 13f and move radially moving to axial between plate 13b, guarantee its precision by moving axially guide groove 13e.Dispersion hands over displacement meter 13d mounting seat moving axially on plate 13f by 4 bolted altogether, and the confocal displacement meter 12 of dispersion is contained in the confocal displacement meter 13d of dispersion mounting seat cylindrical hole, and clamps by the 13k that tights a bolt.
By tighting a bolt, 13k is fastened on confocal dispersion displacement meter 12 in the confocal displacement meter 13d of dispersion mounting seat, adjusting moves radially vernier adjustment knob 13a and changes and highly regulates backing plate 13i to guarantee that the confocal displacement meter 12 of dispersion and axle are 7 right alignment, move axially vernier adjustment knob 13g the focus of confocal dispersion displacement meter 12 be fixed on the end face of axle by adjusting, the data that finally record can show in real time, and can automatically record its numerical value on the subsidiary software of PC 17.
Referring to Fig. 6, thermal resistance sensor 9 is evenly arranged in side, bearing 7d outer ring, quantity is 6, undertaken cementing by high-temp glue, temperature value shows in real time by thermal resistance sensor display instrument 18, inner ring temperature is measured by infrared thermography instrument, and measurement point is arranged in bearing 7d inner ring side, and temperature value shows by infrared thermography instrument display window.
Be evenly arranged 6 test points in side, bearing 7d outer ring, and adopt high-temp glue that thermal resistance sensor 9 is bonded on test point O, measured value shows by thermal resistance sensor display instrument 18, bearing 7d inner ring side is evenly arranged 6 test point I equally, utilize infrared thermography instrument 21 to measure bearing inner race side temperature as bearing inner race temperature, temperature value reads by infrared thermography instrument display window, net result adopts 6 value-taking mean value process to process, and guarantees the accuracy of result.
Referring to Fig. 7, control system schematic diagram, comprises PC 17, servomotor 5, bearing 7d and the switch board containing PLC controller and frequency converter, and wherein, the frequency of operation of Frequency Converter Control servomotor, to export predetermined motor speed.
Bearing drags by servomotor, and rotating speed is programmed and controlled by PLC, therefore can meet bearing under different rotating speeds, to the measurement of its Internal and external cycle temperature and Axial Thermal displacement.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. an angular contact ball bearing temperature, Axial Thermal displacement tester, it is characterized in that: comprise parallels [1], experiment matrix [2], T-shaped substrate [3], motor base [4], servomotor [5], shaft coupling [6], axle system [7], axially assistor [8], thermal resistance sensor [9], top chock [10], step [11], the confocal displacement meter of dispersion [12], micrometric displacement regulator [13], micrometric displacement regulator installing plate [14], round end dive key [15], register pin [16], PC [17], thermal resistance sensor display instrument [18], power sensor display instrument [19], frequency converter [20], infrared thermometer [21],
The quantity of parallels [1] is four, these four blocks of parallels are arranged on the bottom of experiment matrix [2], the top T-shaped substrate [3] that is connected of experiment matrix [2], the top of T-shaped substrate [3] motor base [4] that is connected, servomotor [5] is upper by highly regulating pad to be arranged on motor base [4], and motor shaft is connected with axle system [7] by shaft coupling [6]; The top of T-shaped substrate [3] two steps [11] that are also connected, a top chock [10] is all connected above each step [11], axle system [7] is positioned between two cover top chocks [10] and step [11], axially the quantity of assistor [8] is two, and these two axial assistors are symmetricly set on the both sides of axle system [7]; On the bearing outer ring of axle system [7], thermal resistance sensor [9] is set;
The top of experiment matrix [2] also arranges micrometric displacement regulator installing plate [14], the top of micrometric displacement regulator installing plate [14] the micrometric displacement regulator [13] that is connected, the confocal displacement meter of dispersion [12] clamping is on micrometric displacement regulator [13], be used for measuring the axial displacement of axle system [7], round end dive key [15], register pin [16] are positioned between step [11] and T-shaped substrate [3], for improving the axial guiding accuracy of step [11] and reducing the torsional error in surface level;
The confocal displacement meter of dispersion [12] is connected with PC [17], the data transmission that confocal dispersion displacement meter [12] is detected is to PC [17], PC [17] is connected with servomotor [5] by frequency converter [20], control servomotor [5] work, thermal resistance sensor [9] is connected with thermal resistance sensor display instrument [18], axially assistor [8] is connected with power sensor display instrument [19], and infrared thermometer [21] is positioned at the end of axle system [7], for measuring the temperature of axle system [7] centre bearer inner ring.
2. angular contact ball bearing temperature according to claim 1, Axial Thermal displacement tester, it is characterized in that, axle system [7] comprises key [7a], axle [7c] and the identical bearing assembly of two covers, this two covers bearing assembly is symmetricly set on the two ends of axle [7c], and every cover bearing assembly includes bearing, shaft end nut and bearing holder (housing, cover); Wherein clutch shaft bearing assembly comprises clutch shaft bearing cover [7f], bearing [7d], shaft end nut [7e], and three bolts hole are set on clutch shaft bearing cover [7f], on the bearing holder (housing, cover) [7b] in the second bearing assembly, is symmetrical arranged two dowel holes [7g];
Its centre bearer [7d] inner ring and axle [7c] are interference fit, the inner ring of bearing [7d] is locked on axle [7c] by shaft end nut [7e], bearing [7d] outer ring and clutch shaft bearing cover [7f] interference fit, bearing holder (housing, cover) [7f] is bolted between top chock [10] and step [11].
3. angular contact ball bearing temperature according to claim 1, Axial Thermal displacement tester, it is characterized in that, axially assistor [8] comprises axial rubber ring [8a], axial rubber ring mounting base [8b], axial right screw rod [8c], axially loads nut [8d], axial left screw rod [8e], power installation of sensors base plate [8f], power sensor [8g], boosting-rod [8h];
Wherein, the small column of axial right screw rod [8c] end is through the cylindrical hole in the middle of axial rubber ring mounting base [8b], and be inserted in axial rubber ring [8a], axial right screw rod [8c] is by external thread and a side screw-internal thread fit that axially loads nut [8d], boosting-rod [8h] is inserted in axial loading nut [8d], axially loading nut [8d] coordinates with axial left screw rod [8e] by its opposite side internal thread, axial left screw rod [8e] is clearance fit with power installation of sensors base plate [8f], axial left screw rod [8e] is inserted into by the small column of end in the cylindrical hole of power installation of sensors base plate [8f], power installation of sensors base plate [8f] is connected by four bolts with power sensor [8g], power sensor [8g] is connected with power sensor display instrument [19] by wire, the axial force numerical value finally applying shows by power sensor display instrument [19].
4. angular contact ball bearing temperature according to claim 1, Axial Thermal displacement tester, it is characterized in that, micrometric displacement regulator [13] comprise move radially vernier adjustment knob [13a], move radially plate [13b], move radially guide groove [13c], the confocal displacement meter mounting seat of dispersion [13d], move axially guide groove [13e], move axially plate [13f], move axially vernier adjustment knob [13g], micrometric displacement regulating base board [13h], highly regulate backing plate [13i], spring [13j], [13k] tights a bolt;
Wherein, micrometric displacement regulating base board [13h] is positioned at the top that highly regulates backing plate [13i], moving radially plate [13b] is connected with micrometric displacement regulating base board [13h] by moving radially guide groove [13c], and carrying out elasticity by spring [13j] with micrometric displacement regulating base board [13h] is connected, moving radially vernier adjustment knob [13a] is connected in and moves radially on plate [13b], move axially plate [13f] by moving axially guide groove [13e] and moving radially plate [13b] and be connected, move axially plate [13f] inner by spring with move radially plate [13b] and carry out elasticity and be connected, moving axially vernier adjustment knob [13g] is connected in and moves axially on plate [13f], the confocal displacement meter of dispersion [13d] mounting seat is moving axially on plate [13f] by 4 bolted, tight a bolt [13k] be positioned in the confocal displacement meter mounting seat of dispersion [13d], the confocal displacement meter of dispersion [12] is contained in the confocal displacement meter mounting seat of dispersion [13d] cylindrical hole, and clamp by tight a bolt [13k].
5. angular contact ball bearing temperature according to claim 1, Axial Thermal displacement tester, it is characterized in that, the quantity of thermal resistance sensor [9] is six, these six thermal resistance sensors [9] are evenly arranged in bearing [7d] side, outer ring, undertaken cementing by high-temp glue, inner ring point for measuring temperature is similarly six, is evenly distributed on bearing [7d] inner ring side, measures by infrared temperature temperature measurer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320839516.6U CN203643167U (en) | 2013-12-18 | 2013-12-18 | Temperature and axial thermal displacement test device for angular contact ball bearing |
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| CN201320839516.6U CN203643167U (en) | 2013-12-18 | 2013-12-18 | Temperature and axial thermal displacement test device for angular contact ball bearing |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743565A (en) * | 2013-12-18 | 2014-04-23 | 南京理工大学 | Angular contact ball bearing temperature and axial heat displacement test device and experiment method |
| CN106334998A (en) * | 2015-07-07 | 2017-01-18 | 株式会社捷太格特 | Machine tool with ball screw |
| CN109489949A (en) * | 2018-10-31 | 2019-03-19 | 湖南大学 | A kind of analysis method applied to the hot dynamic property of High-sp eed spindle unit |
| CN114112388A (en) * | 2021-11-12 | 2022-03-01 | 四川安岳宇良汽车水泵有限公司 | Fault detection device of automobile water pump bearing |
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2013
- 2013-12-18 CN CN201320839516.6U patent/CN203643167U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743565A (en) * | 2013-12-18 | 2014-04-23 | 南京理工大学 | Angular contact ball bearing temperature and axial heat displacement test device and experiment method |
| CN103743565B (en) * | 2013-12-18 | 2016-08-17 | 南京理工大学 | Angular contact ball bearing temperature, Axial Thermal displacement tester and experimental technique |
| CN106334998A (en) * | 2015-07-07 | 2017-01-18 | 株式会社捷太格特 | Machine tool with ball screw |
| CN106334998B (en) * | 2015-07-07 | 2019-08-20 | 株式会社捷太格特 | Lathe with ball-screw |
| CN109489949A (en) * | 2018-10-31 | 2019-03-19 | 湖南大学 | A kind of analysis method applied to the hot dynamic property of High-sp eed spindle unit |
| CN109489949B (en) * | 2018-10-31 | 2020-11-03 | 湖南大学 | Analysis method applied to thermal dynamic performance of high-speed spindle unit |
| CN114112388A (en) * | 2021-11-12 | 2022-03-01 | 四川安岳宇良汽车水泵有限公司 | Fault detection device of automobile water pump bearing |
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