CN106525429B - A kind of angular contact bearing birotor testing machine - Google Patents

A kind of angular contact bearing birotor testing machine Download PDF

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Publication number
CN106525429B
CN106525429B CN201611217763.7A CN201611217763A CN106525429B CN 106525429 B CN106525429 B CN 106525429B CN 201611217763 A CN201611217763 A CN 201611217763A CN 106525429 B CN106525429 B CN 106525429B
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bearing
armature spindle
examination
test
oil
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CN106525429A (en
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李济顺
司东宏
杨芳
余永健
马喜强
薛玉君
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Henan University of Science and Technology
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Henan University of Science and Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/04Bearings
    • G01M13/045Acoustic or vibration analysis

Abstract

A kind of angular contact bearing birotor testing machine, including base, it is separately provided for the armature spindle of installing test bearing on base, applies axial loading device, monitoring device and the lubricating system of axial load to the radial loading device of test bearing application radial load, to test bearing, armature spindle is made of inner ring armature spindle and outer ring armature spindle, test bearing is set in the test end of inner ring armature spindle, its outer ring is fixedly connected with the test end of outer ring armature spindle, is each provided with an axial loading device on the floating end of inner ring armature spindle and the floating end of outer ring armature spindle;Radial loaded bearing is additionally provided on inner ring armature spindle;It is additionally provided on the armature spindle of outer ring and accompanies examination cylinder roller bearing, the top for accompanying examination cylinder roller bearing is arranged in monitoring device.The present invention provides a kind of angular contact bearing birotor testing machine, the test suitable for high temperature, the large-scale bearing to run at high speed.

Description

A kind of angular contact bearing birotor testing machine
Technical field
The present invention relates to bearing tester technical field, specifically a kind of angular contact bearing birotor testing machine.
Background technique
Bearing is important, key foundation components in equipment manufacturing, directly decides the performance, reliability and longevity of equipment Life;Exempt from since the working environment of bearing is severe, the load working condition of receiving is complicated, to have long enough even to equip life cycle management Maintenance etc. must do the verifying of corresponding simulation operating condition during designing and developing and manufacturing on testing machine to bearing, Reliable test data is provided for research, design, manufacture and use, provides foundation for design, the manufacture and use of bearing.It is high Temperature, the research and development of high speed and precision bearing, design, manufacture and its experimental technique are mainly monopolized by external a few, China The research and development of such testing machine start from for the 7, eighties, by being limited by design at that time, manufacture etc., the inside and outside diameter of test bearing Also only limit in, small size, limit speed is relatively low, be not able to satisfy present internal diameter greater than 110mm, outer diameter be greater than 140mm, high temperature, The test requirements document of high revolving speed bearing.
Especially for the angular contact bearing that Internal and external cycle in work rotates simultaneously, because it will bear radial direction simultaneously at work Load and axial load, therefore the testing standard of angular contact bearings is more stringent, there is no can complete big ruler in the prior art The birotor testing machine that very little, high revolving speed, top load angular contact bearing are tested.
Summary of the invention
In order to solve deficiency in the prior art, the present invention provides a kind of angular contact bearing birotor testing machine, is suitable for The test of high temperature, the large-scale bearing to run at high speed, birotor can respectively reach in the same direction or incorgruous driving 30000rpm, examination Test bearing bore diameter more than or equal to 140mm, under interior ring oil temperature supplying reach 150 DEG C, operating temperature reach 260 DEG C, radial loaded 60KN。
To achieve the goals above, the present invention use the specific scheme is that
A kind of angular contact bearing birotor testing machine, including base are separately provided for installing test axis on base The armature spindle that holds, the radial loading device for applying radial load to test bearing, the axial direction for applying to test bearing axial load Loading device, monitoring device and lubricating system, the armature spindle are made of inner ring armature spindle and outer ring armature spindle, test bearing set It is located at the test end of inner ring armature spindle, outer ring is fixedly connected with the test end of outer ring armature spindle, and the inner ring armature spindle floats It is each provided with an axial loading device on the floating end of moved end and outer ring armature spindle, is turned respectively by inner ring armature spindle and outer ring Sub- axial test bearing applies contrary axial load;Radial loaded bearing, institute are additionally provided on the inner ring armature spindle It states radial loading device to be arranged above radial loaded bearing and apply load to radial loaded bearing, further be turned by inner ring Sub- axial test bearing transmits radial load;It is additionally provided on the outer ring armature spindle and accompanies examination cylinder roller bearing, the monitoring The top for accompanying examination cylinder roller bearing is arranged in device.
Lubricating sleeve under ring is arranged on the test end of the inner ring armature spindle, the test bearing is set in lubricating sleeve under ring On, the inner ring of test bearing passes through the third ladder for being set in and changing on lubricating sleeve and covers axial limiting;Lubricating sleeve under the ring Inner wall is ladder nested structure, and the hydraulic oilhole being connected to ladder nested structure is offered on end wall.
The inner ring armature spindle is hollow shaft, and has multi-shoulder structure, the axial loading device and radial loaded axis It holds and is separately positioned at two shaft shoulders, and radial loaded bearing is arranged close to test bearing;The outer ring armature spindle is hollow shaft, Its test end is cylindrical and internal diameter is greater than the internal diameter of axle body, tests the tapered tubular of changeover portion at end and axle body, described to accompany examination The intersection of changeover portion and axle body is arranged in cylinder roller bearing.
The radial loaded bearing is cylinder roller bearing, and outer ring is fixedly connected with radial loaded bearing block, inner ring passes through Second ladder cover axial limiting, the end of radial loaded bearing be additionally provided be fixedly connected with radial loaded bearing block for The radial loaded bearing oil-air lubrication oil distribution casing of radial loaded bearing offer lubricating oil.
The radial loading device includes cylinder bracket, and cylinder bracket is in inverted " v " shape, the bottom end of two side arms respectively with machine Seat is fixedly connected, and the junction of two side arms is provided with radial loaded oil cylinder, and the lower end of the Cylinder Plunger of radial loaded oil cylinder is fixed It is connected with sensor mounting plate, the lower part of sensor mounting plate is fixedly installed load sensor, and the radial loaded oil cylinder drives Dynamic Cylinder Plunger, drives load sensor that radial load is applied on radial loaded bearing block.
It is described accompany examination cylinder roller bearing be cylinder roller bearing, outer ring with accompany try cylinder roller bearing seat be fixedly connected, Inner ring covers axial limiting by the first ladder;Examination cylinder roller bearing seat is accompanied accompanying to be additionally provided on the upside of examination cylinder roller bearing seat Gland accompanies examination cylinder roller bearing seat gland to be fixedly connected with base;The both ends of examination cylinder roller bearing seat gland are being accompanied respectively to set It is equipped with a pressure ring, pressure ring is fixedly connected with examination cylinder roller bearing seat gland and base is accompanied and will accompany examination cylinder roller bearing Seat axial limiting;It is fixedly connected with examination cylinder roller bearing seat is accompanied for accompanying accompanying the end of examination cylinder roller bearing to be provided with Examination cylinder roller bearing provides accompanying for lubricating oil and tries cylinder roller bearing oil-air lubrication oil distribution casing.
It is provided with test bearing hatchcover on the outside of the test bearing, experimental cabin is surrounded and test bearing is placed in experimental cabin In;Described accompany is provided with sensor installation seat on examination cylinder roller bearing seat gland, and installation branch is connected on sensor installation seat Frame, mounting bracket are goed deep into test bearing hatchcover;The monitoring device is passed by the infrared temperature being arranged on test bearing hatchcover Sensor, the contactless vibrating sensor being arranged in mounting bracket and noise transducer composition.
The axial loading device is by accompanying examination angular contact bearing to apply load to inner ring armature spindle and outer ring armature spindle;Institute It states and the outer ring of examination angular contact bearing is accompanied to be connected with examination angular contact bearing seat is accompanied, accompanying examination angular contact bearing seat includes being set side by side Floating bearing bracket and oil distribution casing fixing seat, the outer ring for accompanying examination angular contact bearing are fixedly connected with floating bearing bracket, are floating It is provided in cavity between bearing block and oil distribution casing fixing seat and accompanies examination angular contact bearing oil distribution casing, passed through in oil distribution casing fixing seat Logical to be provided with oil input channel, lubrication oil gas is sent into through oil input channel accompanies examination angular contact bearing oil distribution casing and successively accompanying by internal setting It tries angular contact bearing oil distribution casing oil duct and is sprayed after accompanying examination angular contact bearing oil distribution casing nozzle, it is oily to accompanying examination angular contact bearing to carry out Gas lubrication;The axial loading device includes being set side by side and the axially loaded outer press cover being fixedly connected and axially loaded internal pressure Lid, is along the circumferential direction evenly arranged with several hydraulic plungers and several preloading springs on axially loaded internal gland, hydraulic Plunger and preloading spring apply load and are transferred to floating bearing bracket accompanies examination angular contact bearing, so by inner ring armature spindle and Outer ring rotor axial test bearing applies axial load.
The side of the base also offers line inlet, oil discharge outlet and Oil-gas Separation outlet respectively;On the base also It is stamped cover, several are uniformly arranged on the inner surface in cover through to reinforcing rib and broadwise reinforcing rib, at the top of cover It is also provided with radial loaded mechanism via hole;The both ends of the testing machine are also each provided with an end cap, between end cap and armature spindle It is provided with shaft end and is sealed closing disk.
The utility model has the advantages that
1, it realizes to lubrication angular contact bearing simulation actual condition test under major diameter, high temperature, high speed, ring, and uses Dual-rotor structure may be implemented to bearing internal external circle while carry out friction speed synchronized, in the same direction, reversed synchronized or reversed friction speed in the same direction The test of rotation;
2, using bilateral axial loading device, the angular contact bearing inner ring and outer ring in rotation can be applied simultaneously axial Load also can choose unidirectional load, adapt to different tests demand;
3, axial loading device is preloaded using multiple preloading springs, and loading force is uniform, can flexibly replace with suitable Answer the different needs for accompanying examination angular contact bearing;
4, axially loaded that following loading is carried out using multi-plunger hydraulic cylinder with the raising of shaft revolving speed, loading accuracy is high, Load ride comfort is good, corresponding speed is fast, adapts to the test requirements document of Multiple Type bearing designation;
5, it by accompanying examination angular contact bearing and armature spindle to be loaded, avoids not only simplifying test dress using loading sleeve It sets, and loading force is more balanced, improves load effect;
4, the inner wall of lubricating sleeve uses stepped construction under the ring of test bearing, by stepped construction internal hydraulic pressure The mode of oiling is completed to dismount, compared to traditional in the way of thermal expansion and contraction principle dismounting, when changing test bearing model, only It needs to change and lubricates fixing sleeve under hydraulic detachable ring;It not only dismantles, is easy for installation, and positioning accuracy is high, avoids installation Stress is generated when test bearing to concentrate, while also avoiding destroying scuffing of axis etc. when test bearing dismounting;
5, by setting test bearing hatchcover, being effectively isolated for test bearing lubricating oil and experimental enviroment is realized, is avoided Influence of the extraneous lubricating oil to test bearing lubrication detection;
6, axially loaded floating unit has installed linear bearing additional, improves positioning accuracy, radial rigidity, effectively reduces and rub Wipe resistance;
7, axial loading device is additionally provided with force snesor, can be to loading force real-time monitoring, it is ensured that testing machine it is reliable Load operating;
8, testing machine uses sealing structure, can not only improve the stability of testing machine entirety, reduces external environmental interference, And all waste gases, the oil smoke etc. for testing process generation can be accomplished effectively to collect and handle, and reduce the pollution to environment;
9, radial loaded mechanism is mounted on the pedestal of body seat lower part, and buffering is provided on radial loaded bearing Pad makes load link increase the wear-resisting link of damping, can prevent because vibrating the acquisition to load force signal, measurement generates shadow It rings, while also effectively preventing the influence for vibrating shaft other than shafting;
10, radial loaded mechanism passes through cover, makes cover not by radial loaded power, lower in test speed, temperature In the case of, test adjustment can be carried out not fitting machine lid, simplified experiment process, improved test efficiency;
11, test end rotatable parts use non-contact temperature, vibration, sensor noise, and acquisition signal promptly and accurately may be used It leans on, and each noncontacting proximity sensor, not only installation, convenient disassembly, the dedicated air flue also set up can effectively prevent each sensor Pollution, it is ensured that can be worked normally under 260 DEG C of working environments;
12, fuel feeding oil spout oil duct and the setting of test bearing chamber lower cover plate are integrated under test bearing ring, inside set 4 tunnel oil inlets Road and 9 road nozzle bores, not only make structure more compact, easy disassembly and debugging, and can be according to test bearing to moistening under ring The difference of sliding fuel feeding requires flexible modulation to convert;
13, the Support Position of each bearing improves while ensureing that test bearing effectively loads in the shafting optimized Accompany the stress of examination cylinder roller bearing, radial loaded bearing;
14, each bearing is all made of ladder set and carries out axial limiting, and ladder set is arranged at bearing not by axial load Side, ladder set on be also provided with pouring orifice, can use hydraulic mode and ladder set dismounted, avoid stress It concentrates, and main shaft can be protected injury-free;
15, lubricating sleeve, ladder put on the both ends that a diameter is arranged in the pouring orifice opened up under ring, can either guarantee ladder Structure when rotated and stability under loading are covered, it will not be because of structure Asymmetric ef- fect dynamic balancing;
16, the support device of all parts is all made of transition connection, needs to change according to test and accompanies examination cylinder roller bearing When model, it is only necessary to replace transition tool, not only significantly reduce experimentation cost, but also adapt within the scope of certain diameter a variety of The needs of model bearing test.
Detailed description of the invention
Fig. 1 is overall structure diagram;
Fig. 2 is test bearing, radial loaded bearing and the scheme of installation for accompanying examination cylinder roller bearing;
Fig. 3 is axial loading device structural schematic diagram;
Fig. 4 is radial loaded structural schematic diagram;
Fig. 5 is stand structure schematic diagram;
Fig. 6 is cover structure schematic diagram.
Appended drawing reference: 1, base, 2, axial loading device, 201, axially loaded outer press cover, 202, hydraulic plunger, 203, axis To load internal gland, 204, preloading spring, 3, shaft end seal disk, 4, outer ring armature spindle, 5, accompany examination angular contact bearing, 6, accompany examination angle Contact bearing seat, 7, cover, 8, accompany examination cylinder roller bearing, 9, test bearing, 10, radial loaded bearing, 11, radial loaded dress Set, 1101, cylinder bracket, 1102, pressure sensor, 1103, sensor mounting plate, 1104, Cylinder Plunger, 1105, it is radial plus Carry oil cylinder, the 12, first ladder set, 13, accompany examination cylinder roller bearing oil-air lubrication oil distribution casing, 14, accompany examination cylinder roller bearing seat, 15, examination cylinder roller bearing seat gland, 16, test bearing hatchcover, 17, radial loaded bearing block, 18, radial loaded bearing oil are accompanied Gas lubricates oil distribution casing, the 19, second ladder set, 20, inner ring armature spindle, 21, third ladder set, 22, lubricating sleeve under ring, 23, sensing Device mounting base, 24, fourth order ladder set, 25, floating bearing bracket, 26, axially loaded whole gland, 27, oil distribution casing fixing seat, 28, Spacer, 29, accompany examination angular contact bearing oil distribution casing nozzle, 30, accompany examination angular contact bearing oil distribution casing oil gas road, 31, accompany examination angular contact Bearing oil distribution casing, 32, load force snesor, 33, bearing ring, 34, oil input channel, 35, end cap, 36, pressure ring.
Specific embodiment
Embodiments of the present invention are illustrated below according to attached drawing.
As shown in Figure 1, a kind of angular contact bearing birotor testing machine, including base 1, it is respectively set on base 1 useful It is applied in the armature spindle of installing test bearing 9, to the radial loading device 11 of the application radial load of test bearing 9, to test bearing 9 Add axial loading device 2, monitoring device and the lubricating system of axial load, the armature spindle is turned by inner ring armature spindle 20 and outer ring Sub- axis 4 forms, and test bearing 9 is set in the test end of inner ring armature spindle 20, and outer ring and the test end of outer ring armature spindle 4 are fixed Connection.
As shown in Figures 2 to 6, respectively it is arranged on the floating end of the inner ring armature spindle 20 and the floating end of outer ring armature spindle 4 There is an axial loading device 2, is applied respectively by inner ring armature spindle 20 and outer ring armature spindle 4 to test bearing 9 contrary Axial load.By the way of bi-directional axial load, it can need to convert axially loaded side according to different tests bearing 9 Formula can choose the mode of unidirectional load or biaxial loadings, and the test load for adapting to a variety of test bearings 9 requires.By turning Sub- axial test bearing 9 applies load, with traditional mode phase being loaded directly into using loading sleeve from bearing rotor side Than, the load of Internal and external cycle while rolling bearing is not only realized, while avoiding the influence that loading sleeve rotates test bearing 9, Bearing performance can be tested more accurately.
Radial loaded bearing 10 is additionally provided on the inner ring armature spindle 20, the radial loading device 11 is arranged in radial direction 10 top of load bearings simultaneously applies load to radial loaded bearing 10, is further passed by inner ring armature spindle 20 to test bearing 9 Pass radial load;It is additionally provided on the outer ring armature spindle 4 and accompanies examination cylinder roller bearing 8, examination is being accompanied in the monitoring device setting The top of cylinder roller bearing 8.
Lubricating sleeve 22 under ring are arranged on the test end of the inner ring armature spindle 20, the test bearing 9 is set under ring On lubricating sleeve 22, the inner ring of test bearing 9 passes through the third ladder for being set in and changing on lubricating sleeve 22 and covers 21 axial limitings;It is described The inner wall of lubricating sleeve 22 is ladder nested structure under ring, and the hydraulic oilhole being connected to ladder nested structure is offered on end wall, is passed through Hydraulic mode installs or removes.Hydraulic oilhole shares one, in order to guarantee the dynamic balance accuracy of lubricating sleeve 22 under ring, avoids Because distribution of weight imbalance causes biggish vibration in high-speed rotation, it is also provided with a balance hole, size It is identical as hydraulic oilhole but be not connected to ladder nested structure, and the axisymmetrical with hydraulic oilhole about lubricating sleeve 22 under ring is set It sets.Test bearing 9 under ring by the way of lubricating, with oil mass common oil jet lubrication mode much less than in the prior art, by The power loss caused by the power stirring of oil is also less, and the heat condition of bearing is also greatly improved or even inner ring temperature Degree is likely lower than outer ring and reduces bearing fault rate.Ladder nested structure is set on 22 inner wall of lubricating sleeve under ring, passes through hydraulic oil Hole can the oiling into ladder nested structure, dismounted in the way of hydraulic.Specific process are as follows: when installation, Lubricating sleeve 22 under ring is heated first, after covering on inner ring armature spindle 20, the note installation oil into hydraulic oilhole, while on the outside It pressurizes to lubricating sleeve under ring, stops oiling after lubricating sleeve 22 under ring is cooling, then lubricating sleeve 22 is pressed on inner ring armature spindle under ring On 20, installation is completed;When disassembly, the note disassembly oil into hydraulic oilhole, lubricating sleeve 22 is swollen under ring under the action of oil It is swollen, i.e., it skids off automatically.Relative to traditional method by thermal expansion and contraction principle installation axle sleeve, part can be eliminated and shunk The stress that generates in journey concentrates the influence generated to shaft, and shaft is avoided to occur scratching etc. and be damaged.For the bearing of different model, Lubricating sleeve under the ring of different-thickness can be made, different subject bearings can be adapted to by only needing to change lubricating sleeve under ring in this way, no Shaft will be replaced with each replacement subject bearing, experimentation cost can be substantially reduced, also can shorten the test period.
The inner ring armature spindle 20 is hollow shaft, and has multi-shoulder structure, the axial loading device 2 and radial loaded Bearing 10 is separately positioned at two shaft shoulders, and radial loaded bearing 10 is arranged close to test bearing 9;The outer ring armature spindle 4 For hollow shaft, test end is cylindrical and internal diameter is greater than the internal diameter of axle body, tests the tapered tubular of changeover portion at end and axle body, The intersection for accompanying examination cylinder roller bearing 8 that changeover portion and axle body are set.In order to be recycled from test bearing 9 in time The lubricating oil sputtered, in outer ring, armature spindle 4 tests end perforation and is provided with several back oil roads, the direction of back oil road and changeover portion Outside wall parallel be centrifuged from the lubricating oil sputtered in test bearing 9 after trickling down on the changeover portion of outer ring shaft 4 It is thrown away under the action of power by back oil road, resistance caused by can be avoided lubricating oil and cannot recycling in time increases, turns into outer ring The problems such as sub- axis 4 or 20 hollow shaft of inner ring armature spindle intracardiac influence shafting, moreover it is possible to accelerate the recycling of lubricating oil, reduce high gentle Heating time of the lubricating oil to workpiece.
The radial loaded bearing 10 is cylinder roller bearing, and outer ring is fixedly connected with radial loaded bearing block 17, inner ring 19 axial limitings are covered by the second ladder, are additionally provided in the end of radial loaded bearing 10 fixed with radial loaded bearing block 17 It connects for providing the radial loaded bearing oil-air lubrication oil distribution casing 18 of lubricating oil to radial loaded bearing 10.Radial loaded bearing Oil-air lubrication oil distribution casing 18 is opened up far from one end of test bearing 9 there are four fuel feed hole, and each fuel feed hole is connected to one along radius The oil duct inside radial loaded bearing oil-air lubrication oil distribution casing 18, the corresponding nozzle of each oil duct, nozzle court is arranged in direction To the outer ring raceway of radial loaded bearing 10.Radial loaded bearing 10 carries out axially position using ladder set, with threaded lock Tight nut is compared, and can guarantee higher dynamic balance accuracy.
The radial loading device 11 includes cylinder bracket 1101, and cylinder bracket 1101 is in inverted " v " shape, the bottom of two side arms End is fixedly connected with base 1 respectively, and the junction of two side arms is provided with radial loaded oil cylinder 1105, radial loaded oil cylinder 1105 The lower end of Cylinder Plunger 1104 is fixedly connected with sensor mounting plate 1103, and the lower part of sensor mounting plate 1103 is fixedly installed Load sensor 1102, the 1105 drive cylinder plunger 1104 of radial loaded oil cylinder drive load sensor 1102 will be radial Load is applied on radial loaded bearing block 17.One has also been dug on the side wall of radial loaded bearing oil-air lubrication oil distribution casing 18 A cushion mounting groove is also equipped with one on radial loaded bearing block 17 and is attached thereto logical mounting groove, pacifies in cushion Cushion is provided in tankage, radial load is applied on cushion, plays the wear-resisting effect of damping, while can prevent radial direction Load bearings 10 and radial loaded bearing block 17 generate biggish axial dipole field.
Described accompany tries cylinder roller bearing 8 as cylinder roller bearing, and company is fixed with examination cylinder roller bearing seat 14 is accompanied in outer ring It connects, inner ring passes through the first ladder 12 axial limitings of set;Examination cylinder rolling is accompanied accompanying to be additionally provided on the upside of examination cylinder roller bearing seat 14 Sub- bearing block gland 15 accompanies examination cylinder roller bearing seat gland 15 to be fixedly connected with base 1;Accompanying examination cylinder roller bearing seat pressure The both ends of lid 15 are each provided with a pressure ring 36, and pressure ring 36 connects with the fixation of examination cylinder roller bearing seat gland 15 and base 1 is accompanied It connects and examination 14 axial limiting of cylinder roller bearing seat will be accompanied;The end of examination cylinder roller bearing 8 is being accompanied to be provided with and accompany examination cylinder Roller bearing seat 14 be fixedly connected for accompany examination cylinder roller bearing 8 provide lubrication oil gas accompany examination cylinder roller bearing oil gas Lubricate oil distribution casing 13.Examination cylinder roller bearing 8 and 1 device of base is accompanied to connect using transition sleeve (and accompanying examination cylinder roller bearing seat 14) It connects, when needing to change the model for accompanying examination cylinder roller bearing 8 according to test, it is only necessary to replace transition sleeve tooling.Accompany examination cylinder rolling Sub- bearing 8 uses oil-air lubrication, improves and accompanies the lubricant effect of examination cylinder roller bearing 8, reduces and accompany examination cylinder roller bearing 8 Frictional heating, effectively increase the revolution at a high speed kinematic accuracy of shafting, extend testing machine service life.With radial loaded axis It holds 10 and axially position is equally carried out using ladder set, effect is identical.The dismounting mode of described each ladder set with change profit Sliding sleeve 22 is identical, and the set-up mode of oil filler point can also be identical, or oil filler point is disposed radially.
It is provided with test bearing hatchcover 16 on the outside of the test bearing 9, surround experimental cabin and test bearing 9 is placed in test In cabin;Described accompany is provided with sensor installation seat 23 on examination cylinder roller bearing seat gland 15, connects on sensor installation seat 23 There is mounting bracket, mounting bracket is goed deep into test bearing hatchcover 16;The monitoring device is by being arranged on test bearing hatchcover 16 Infrared temperature sensor, the contactless vibrating sensor that is arranged in mounting bracket and noise transducer composition.Test end Rotatable parts use non-contact temperature, vibration, sensor noise, and acquisition signal is timely, accurate and reliable;Each non-contact sensor Device not only installs, convenient disassembly, through overtesting, it may also be ensured that working normally in the environment of 260 DEG C.
The axial loading device 2 is carried by accompanying examination angular contact bearing 5 to apply to inner ring armature spindle 20 and outer ring armature spindle 4 Lotus, accompanying the lubricating system of examination angular contact bearing 5 is preferably oil-air lubrication.It is described to accompany the outer ring for trying angular contact bearing 5 and accompany examination angle Contact bearing seat 6 is connected, and accompanying examination angular contact bearing seat 6 includes the floating bearing bracket 25 being set side by side and oil distribution casing fixing seat 27, the outer ring for accompanying examination angular contact bearing 5 is fixedly connected with floating bearing bracket 25, is fixed in floating bearing bracket 25 and oil distribution casing It is provided in cavity between seat 27 and accompanies examination angular contact bearing oil distribution casing 31, perforation is provided with oil inlet in oil distribution casing fixing seat 27 Road 34, lubrication oil gas is sent into through oil inlet air flue 34 accompanies examination angular contact bearing oil distribution casing 31 and successively accompanies examination angle by internal setting It contact bearing oil distribution casing oil gas road 30 and sprays after accompanying examination angular contact bearing oil distribution casing nozzle 29, lubricating oil gas blowout is to accompanying examination corner connection Contact bearing 5 is lubricated;The axial loading device 2 includes 301 He of axially loaded outer end cap for being set side by side and being fixedly connected Axially loaded internal gland 203 has along the circumferential direction uniformly been arranged alternately several on the same pitch circle of axially loaded internal gland 203 Hydraulic plunger 202 and several preloading springs 204, hydraulic plunger 202 and preloading spring 204 apply load to floating bearing bracket 25 And be transferred to and accompany examination angular contact bearing 5, axis is further applied to test bearing 9 by inner ring armature spindle 20 and outer ring armature spindle 4 To load.
When implementing, accompanying examination angular contact bearing 5 is preferably the angular contact bearing that can bear larger axial load.Described Hydraulic plunger 202 is arranged in hydraulic plunger mounting hole, and hydraulic plunger mounting hole penetrates through two ends of axially loaded internal gland 203 Wall, also perforation is internally provided with several hydraulic oil ducts on axially loaded outer press cover, and hydraulic oil duct is communicated with external fuel feed pump Road.The preloading spring 204 is arranged in preloading spring mounting hole, preloading spring mounting hole only with axially loaded internal gland 203 Close to the side perforation for accompanying examination angular contact bearing seat 6.In test, preloading spring 204 is pre- to accompanying examination angular contact bearing 5 to provide Tightly, initial pretightening force is provided, hydraulic plunger 202 for providing axial load during the test.It is close in floating bearing bracket 25 The side of axial loading device 2 has dug an annular recess, and a bearing ring, 203 He of hydraulic plunger are provided in groove The axial load that preloading spring 204 exports acts on bearing ring, and the non-stress end of bearing ring is provided with several pressure Sensor (inside that floating bearing bracket 25 is arranged in), pressure sensor acquire the data of axial load and by routes and test The monitoring devices such as the computer outside machine are connected, and can detect axial load capacity at any time and be controlled.
The side of the base 1 also offers line inlet 101, oil discharge outlet 102 and Oil-gas Separation outlet 103 respectively;Institute It states and is also stamped cover 7 on base 1, several are uniformly arranged on the inner surface in cover 7 through to reinforcing rib and broadwise reinforcing rib, Radial loaded mechanism via hole 701 is also provided at the top of cover 7;The both ends of the testing machine are also each provided with an end cap 35, it is provided with shaft end between end cap 35 and armature spindle and is sealed closing disk 3.The radial loaded oil cylinder 1105 is from cover via hole 701 It stretches out, such cover 7 just not will receive radial loaded power, avoid because cover vibrates the influence to radial loaded, and tears open Unload, install, debug it is more convenient, under conditions of slow-speed test, can not fitting machine lid 7 carry out test adjustment, with reduce examination Step is tested, working efficiency is improved.Testing machine is set as sealing structure, and experimental enviroment can both have been kept by external interference, not improve Experimental accuracy, the wastes loss everywhere such as oil gas that can also prevent test from generating, causes environmental pollution, it can first be carried out It is discharged again after collection processing.
In terms of driving device, the floating end of the inner ring armature spindle 20 and outer ring armature spindle 4 pass through respectively shaft coupling with Variable-frequency motor is connected, and according to specific test demand, can carry out friction speed synchronized, in the same direction, incorgruous synchronized, incorgruous friction speed in the same direction Test.For short form test preparation process, the direction of rotation of inner ring armature spindle 20 or outer ring armature spindle 4 can be fixed, Another armature spindle need to only be adjusted.

Claims (7)

1. a kind of angular contact bearing birotor testing machine, including base (1) are separately provided for installing examination on base (1) The armature spindle of bearing (9) is tested, applies the radial loading device (11) of radial load to test bearing (9), applied to test bearing (9) Add axial loading device (2), monitoring device and the lubricating system of axial load, the armature spindle is by inner ring armature spindle (20) and outside Armature spindle (4) composition is enclosed, test bearing (9) is set in the test end of inner ring armature spindle (20), outer ring and outer ring armature spindle (4) Test end be fixedly connected, it is characterised in that:
An axially loaded dress is each provided on the floating end of the inner ring armature spindle (20) and the floating end of outer ring armature spindle (4) (2) are set, apply contrary axial load to test bearing (9) by inner ring armature spindle (20) and outer ring armature spindle (4) respectively Lotus;
It is additionally provided with radial loaded bearing (10) on the inner ring armature spindle (20), the radial loading device (11) is arranged in diameter Apply load above to load bearings (10) and to radial loaded bearing (10), further passes through inner ring armature spindle (20) to test Bearing (9) transmits radial load;
It is additionally provided on the outer ring armature spindle (4) and accompanies examination cylinder roller bearing (8), examination cylinder is being accompanied in the monitoring device setting The top of roller bearing (8);
Described accompany tries cylinder roller bearing (8) as cylinder roller bearing, and company is fixed with examination cylinder roller bearing seat (14) is accompanied in outer ring It connects, inner ring passes through first ladder set (12) axial limiting;Examination is accompanied to justify accompanying to be additionally provided on the upside of examination cylinder roller bearing seat (14) Column roller bearing seat gland (15) accompanies examination cylinder roller bearing seat gland (15) to be fixedly connected with base (1);Accompanying examination cylinder rolling The both ends of sub- bearing block gland (15) are each provided with a pressure ring (36), pressure ring (36) and accompany examination cylinder roller bearing seat gland (15) it is fixedly connected with base (1) and examination cylinder roller bearing seat (14) axial limiting will be accompanied;Accompanying examination cylinder roller bearing (8) end be provided with accompany examination cylinder roller bearing seat (14) be fixedly connected for accompany examination cylinder roller bearing (8) provide Lubricating oil accompanies examination cylinder roller bearing oil-air lubrication oil distribution casing (13);
The side of the base (1) also offers line inlet (101), oil discharge outlet (102) and Oil-gas Separation outlet respectively (103);Cover (7) are also stamped on the base (1), several are uniformly arranged on the inner surface in cover (7) through Xiang Jiaqiang Muscle and broadwise reinforcing rib are also provided with radial loaded mechanism via hole (701) at the top of cover (7);The both ends of the testing machine It is also each provided with an end cap (33), shaft end is provided between end cap (33) and armature spindle and is sealed closing disk (3).
2. a kind of angular contact bearing birotor testing machine as described in claim 1, it is characterised in that: the inner ring armature spindle (20) it is arranged on test end lubricating sleeve under ring (22), the test bearing (9) is set on lubricating sleeve under ring (22), test The inner ring of bearing (9) passes through third ladder set (21) axial limiting for being set on lubricating sleeve under ring (22);
Under the ring inner wall of lubricating sleeve (22) be ladder nested structure, offered on end wall be connected to ladder nested structure it is hydraulic Oilhole.
3. a kind of angular contact bearing birotor testing machine as described in claim 1, it is characterised in that: the inner ring armature spindle (20) it is hollow shaft, and there is multi-shoulder structure, the axial loading device (2) and radial loaded bearing (10) is separately positioned on At two shaft shoulders, and radial loaded bearing (10) is arranged close to test bearing (9);The outer ring armature spindle (4) is hollow shaft, Test end is cylindrical and internal diameter is greater than the internal diameter of axle body, tests the tapered tubular of changeover portion at end and axle body, described that examination is accompanied to justify The intersection of changeover portion and axle body is arranged in column roller bearing (8).
4. a kind of angular contact bearing birotor testing machine as described in claim 1, it is characterised in that: the radial loaded bearing It (10) is cylinder roller bearing, outer ring is fixedly connected with radial loaded bearing block (17), inner ring passes through second ladder set (19) axis To limit, it is additionally provided with and is fixedly connected with radial loaded bearing block (17) for radial direction in the end of radial loaded bearing (10) The radial loaded bearing oil-air lubrication oil distribution casing (18) of load bearings (10) offer lubricating oil.
5. a kind of angular contact bearing birotor testing machine as claimed in claim 4, it is characterised in that: the radial loading device It (11) include cylinder bracket (1101), cylinder bracket (1101) is in inverted " v " shape, and the bottom end of two side arms is solid with base (1) respectively Fixed connection, the junction of two side arms are provided with radial loaded oil cylinder (1105), the Cylinder Plunger of radial loaded oil cylinder (1105) (1104) lower end is fixedly connected with sensor mounting plate (1103), and the lower part of sensor mounting plate (1103) is fixedly installed lotus It retransmits sensor (1102), radial loaded oil cylinder (1105) the drive cylinder plunger (1104), drives load sensor (1102) Radial load is applied on radial loaded bearing block (17).
6. a kind of angular contact bearing birotor testing machine as described in claim 1, it is characterised in that: the test bearing (9) Outside is provided with test bearing hatchcover (16), surrounds in experimental cabin and test bearing (9) is placed in experimental cabin;It is described that examination is accompanied to justify It is provided on column roller bearing seat gland (15) sensor installation seat (23), installation branch is connected on sensor installation seat (23) Frame, mounting bracket are goed deep into test bearing hatchcover (16);The monitoring device is red on test bearing hatchcover (16) by being arranged in Outer temperature sensor, the contactless vibrating sensor being arranged in mounting bracket and noise transducer composition.
7. a kind of angular contact bearing birotor testing machine as described in claim 1, it is characterised in that: the axial loading device (2) by accompanying examination angular contact bearing (5) to apply load to inner ring armature spindle (20) and outer ring armature spindle (4);
The outer ring for accompanying examination angular contact bearing (5) is connected with examination angular contact bearing seat (6) is accompanied, and accompanies examination angular contact bearing seat It (6) include the floating bearing bracket (25) being set side by side and oil distribution casing fixing seat (27), the outer ring for accompanying examination angular contact bearing (5) It is fixedly connected with floating bearing bracket (25), is provided in the cavity between floating bearing bracket (25) and oil distribution casing fixing seat (27) Examination angular contact bearing oil distribution casing (31) is accompanied, penetrates through and is provided with oil input channel (34) on oil distribution casing fixing seat (27), lubrication oil gas warp Oil input channel (34), which is sent into, accompanies examination angular contact bearing oil distribution casing (31) and successively accompanies examination angular contact bearing with oil by internal setting Disk oil duct (30) and accompany examination angular contact bearing oil distribution casing nozzle (29) spray afterwards, to accompany examination angular contact bearing (5) carry out oil gas profit It is sliding;
The axial loading device (2) includes being set side by side and the axially loaded outer press cover (301) that is fixedly connected and axially loaded Internal gland (203), be along the circumferential direction evenly arranged on axially loaded internal gland (203) several hydraulic plungers (202) and Several preloading springs (204), hydraulic plunger (202) and preloading spring (204) apply load to floating bearing bracket (25) and pass It is handed to and accompanies examination angular contact bearing (5), and then applied by inner ring armature spindle (20) and outer ring armature spindle (4) to test bearing (9) Axial load.
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CN108562438B (en) * 2017-12-28 2020-06-19 洛阳轴承研究所有限公司 Device and method for measuring friction torque of face-to-face paired bearings
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CN111189636B (en) * 2020-01-10 2022-02-11 中国航空综合技术研究所 Clamp system for life test of joint bearing
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