CN105136457A - High/low-temperature controllable multi-specification rolling bearing test bench - Google Patents
High/low-temperature controllable multi-specification rolling bearing test bench Download PDFInfo
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- CN105136457A CN105136457A CN201510299503.8A CN201510299503A CN105136457A CN 105136457 A CN105136457 A CN 105136457A CN 201510299503 A CN201510299503 A CN 201510299503A CN 105136457 A CN105136457 A CN 105136457A
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Abstract
The invention discloses a high/low-temperature controllable multi-specification rolling bearing test bench, and belongs to the technical field of bearing test benches. The high/low-temperature controllable multi-specification rolling bearing test bench comprises a base, and a driving motor, a bearing test device, a heating and cooling device, and a detection device which are arranged on the base. The bearing test device comprises a bearing test box used to fix a test bearing and test the bearing. The bearing test box includes a left bearing test box and a right bearing test box, and a test spindle is arranged between the left bearing test box and the right bearing test box in a penetrating mode. One end of the test spindle extends out of the left bearing test box and is fixed to a motor spindle, and the other end of the test spindle extends out of the right bearing test box and is fixed to an axial loading device. A radial loading device is arranged on the test spindle. The commonality of the test bench is improved greatly. Experimental study on different bearings, different loads and different targets can be competed with one set of equipment. Great engineering reference value is provided for optimized design, dynamic characteristic analysis, failure mechanism research and reliability analysis of rolling bearings.
Description
Technical field
The invention belongs to the test bed technical field of bearing, be specifically related to a kind of high/low temperature controlled and can carry out many specifications rolling bearing test testing table.
Background technology
As important power transmission member, rolling bearing has a wide range of applications in fields such as engineering machinery, track traffic, Aero-Space and new forms of energy.Under condition of different temperatures, can marked change be there is in the physical characteristics of rolling bearing, impact is brought on its normal use, for aeromotor spindle angular contact ball bearing, cylinder roller bearing and bearing, they are everlasting under the rugged surroundings such as high temperature and work, and inevitably exist and rub or collide, cause bearing generation thermal deformation between rolling body and retainer and Internal and external cycle raceway, change the Radial windage of its initial designs, cause wearing and tearing aggravation and service life reduction.Meanwhile, too high temperature rise will change the rheological characteristics of bearing lubricant, and then affects the military service performance under bearing hot conditions, causes the failure phenomenons such as bearing gummed, fracture to occur.In addition, also can there is significant change in the bearing performance under low temperature environment, also may due to the stuck situation of the inconsistent appearance of bearing material shrinkage.
Have polytype rolling bearing test table both at home and abroad at present, expect to obtain the physical characteristics of all types of many specifications rolling bearings under various temperature conditions, but often bearing size is fixed, measurable variable is few, versatility is narrow, effectively can not simulate the actual condition of rolling bearing, the rolling bearing all-round property testing under high temperature and low temperature can not be carried out simultaneously.Wind-power main shaft bearing testing machine such as disclosed in CN102095581A and the railway bearing intelligent on-line measuring device disclosed in CN201193981Y, respectively for wind power principal axis bearing and railway bearing, versatility is narrow.Such as, the rolling bearing test table disclosed in CN2924697Y, cannot simulate the rolling bearing test under high and low temperature environment.Such as, the bearing temperature disclosed in CN102589883A, dynamic torque detection testing method and test unit, measurable variable few (temperature and moment of torsion) and can not radial loaded be realized.Such as, heat power bearing tester disclosed in CN204128825U, for the heat power bearing that size is fixing, only can radial loaded, the sensing head of its temperature sensor is arranged on rotating prevention sleeve inwall, contact with heat power bearing outer ring to be measured, only can measure bearing outer ring temperature, and can not low-temperature test be simulated.
For the problems referred to above, be necessary to improve the structure of existing rolling bearing test table, make it not only can adapt to bearing test that is dissimilar, different model, can also change the temperature conditions of test, loading condition, greatly improve its universal performance, a set of equipment can realize the experimental study of different bearing, different load, different target, effectively reduces R&D costs.
Summary of the invention
In view of this, the object of the present invention is to provide the controlled many specifications rolling bearing test table of a kind of high/low temperature, to solve poor universality in prior art, problem that R&D costs are high.
The object of the invention is to be achieved through the following technical solutions:
The controlled many specifications rolling bearing test table of high/low temperature, comprise pedestal and be arranged on the drive motor on pedestal, bearing test device, heating and cooling device and pick-up unit, described bearing test device comprises the bearing test case carrying out bearing test for fixation test bearing, the left bearing chamber that described bearing test case comprises and right bearing chamber, the through test main shaft be provided with for testing test bearing in casing between left bearing chamber and right bearing chamber, one end of described test main shaft extends left bearing chamber and electric machine main shaft is fixed, the other end extends right bearing chamber and an axial loading device is fixed,
Described axial loading device comprises to be fixed with test main shaft and transmits the pull bar of axial load and be connected with pull bar and apply the axial servo electric jar of axial load,
Described test main shaft is also provided with radial loading device, described radial loading device comprises being arranged on of slip can to the radial servo electric cylinder of test main shaft applying radial load on pedestal, described pick-up unit comprises and is arranged on torque sensor between motor and left bearing chamber and is arranged on the vibration acceleration sensor, temperature sensor, the displacement transducer that detect on bearing
Described torque sensor is connected respectively by positive coupling, Hooks coupling universal coupling with between left bearing chamber with between motor, and the axis of described drive motor, positive coupling, torque sensor, Hooks coupling universal coupling, left test bearing case, test main shaft, right test bearing case, pull bar and axial servo electric jar is all arranged on same straight line.
Further, described heating and cooling device comprises being arranged in bearing test case can be provided the heating arrangement of hot environment and provide the heat sink of low temperature environment, described heating arrangement comprises the annular-heating plate be arranged in casing, described annular-heating plate is made up of resistant to elevated temperatures mica heating plate, and described heat sink comprises and is arranged on cold air duct in casing and the eddy current cold air blasting gun be communicated with cold wind source being arranged on cold air duct air inlet.
Further, test main shaft in described left bearing chamber and right bearing chamber and respective cabinets cavity form the bearing installing space that at least can hold the test bearing that is arranged in pairs, are provided with the bearing fixing device adapting to different size bearing and fix in described bearing installing space.
Further, described bearing fixing device comprises the bearing inner race diameter alignment rings being nested in test bearing inner ring and the bearing outer diameter adjustment ring being coated at test bearing outer ring, described bearing inner race diameter alignment rings is fixed with test main shaft, the casing at described bearing outer diameter adjustment ring and place is fixed, and described bearing inner race diameter alignment rings arranges multiple from bearing outer diameter adjustment ring by different bearing designation.
Further, described bearing fixing device comprises the bearing inner race diameter alignment rings being nested in test bearing inner ring and the bearing outer diameter adjustment ring being coated at test bearing outer ring, described bearing inner race diameter alignment rings is fixed with test main shaft, the casing at described bearing outer diameter adjustment ring and place is fixed, described bearing inner race diameter alignment rings and bearing outer diameter adjustment ring are provided with diameter adjusting mechanism, described diameter adjusting mechanism comprises at least three pieces of expansion blocks and carries out expanding the traction cylinder of traction to expansion block, and described traction cylinder is multistage hydraulic cylinder or cylinder.
Further, described radial loading device also comprise for fixed radial servo electric jar supporting seat and be fixed on supporting seat slide rail on pedestal.
Further, the bearing arrangement that described test main shaft adopts " the travelling supporting of left fulcrum, right fulcrum twin fixed guide-vane ".
Further, described temperature sensor comprises lubricating oil temperature sensor and bearing temperature sensor, described lubricating oil temperature sensor is sonde-type thermal resistance temperature sensor, described bearing temperature sensor is non-contact infrared temperature sensor, and its infrared probe is movably arranged in bearing test case on the chute of the bearing cap adopting trnaslucent materials to make.
Further, also comprise lubricating system, described lubricating system comprises and is separately positioned on Lubricating oil nozzle in left bearing chamber and right bearing chamber and spill port, and with the Lubricating oil tank that nozzle is communicated with by return line with spill port by in-line connected sum, be provided with the heating tube for improving oil temperature in described fuel tank.
Further, also comprise temperature control system, described temperature control system comprises the master control computer, PLC, the temperature control terminal that are interconnected, described temperature control terminal is communicated with cold air duct with annular-heating plate, heating tube, described PLC is communicated with bearing temperature sensor with lubricating oil temperature sensor, and described temperature control terminal is provided with low temperature adjusting knob for Non-follow control and high temperature adjusting knob.
The invention has the beneficial effects as follows:
1, by bearing inner race diameter alignment rings, bearing outer diameter adjustment ring, can different classes of, different size bearing be fixed in bearing test case, thus increase the trial stretch of testing table, realize testing the rolling bearing of aligning/angular contact/deep groove ball bearing, aligning/circular cone/polytype such as cylinder roller bearing, needle bearing and size on a large scale.
2, by having the bearing fixing device of diameter adjusting mechanism, can change adjustment ring, what also can realize different classes of, different size bearing is fixing, makes fixed efficiency higher, is conducive to improving test efficiency.
3, the temperature environment of bearing chamber is regulated by heating and cooling device, the rolling bearing all-round property testing under adopting a set of equipment just can realize various temperature condition.
The real-time online that 4, can be carried out the performance parameters such as temperature, dynamic torque, vibration acceleration, radial/axial loading force by pick-up unit, temperature control system and lubricating system is detected, and realizes the Temperature Rising Law under different bearing operating ambient temperature, radial/axial load, the speed of mainshaft, lubricating condition, temperature distribution state, vibration, material behavior, rubbing wear, friction pair military service behavioral implications research.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized by instructions below and obtain.
Accompanying drawing explanation
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the front view of testing table first embodiment of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of the left test bearing case of the first embodiment;
Fig. 4 is the structural representation of the right test bearing case of the first embodiment;
Fig. 5 is the first embodiment temperature control and lubrication system works schematic diagram;
Fig. 6 is the structural representation of the left test bearing case of second embodiment of the invention;
Fig. 7 is the structural representation of second embodiment of the invention bearing fixing device.
Reference numeral: 1, drive motor; 2, positive coupling; 3, torque sensor; 4, Hooks coupling universal coupling; 5, left bearing chamber; 6, right bearing chamber; 7, radial servo electric cylinder; 8, back up pad; 9, supporting seat slide rail; 10, pull bar; 11, axial servo electric jar; 12, main shaft is tested; 13, support; 14, bearing cap one; 15, inner ring baffle ring one; 16, nozzle; 17, stop washer one; 18, set nut one; 19, sealing gasket one; 20, set nut two; 21, stop washer two; 22, left test bearing; 23, packing ring one is adjusted; 24, spill port one; 25, spill port two; 26, bearing cap two; 27, bearing inner race diameter alignment rings; 28, inner ring baffle ring two; 29, sealing gasket two; 30, annular-heating plate; 31, bearing outer diameter adjustment ring one; 32, packing ring two is adjusted; 33, cold air duct; 34, eddy current cold air blasting gun; 35, outer ring baffle ring one; 36, right test bearing; 37, bearing outer diameter adjustment ring two; 38, outer ring baffle ring two; 39, low temperature adjusting knob; 40, high temperature adjusting knob; 41, temperature control terminal; 42, high temperature call wire; 43, return line; 44, fuel tank; 45, heating tube; 46, lubricating oil temperature sensor; 47, bearing temperature sensor one; 48, bearing temperature sensor two; 49, bearing temperature sensor three; 50, bearing temperature sensor four; 51, chute; 52, PLC; 53, master control computer; 54, in-line; 55, cold wind pipeline; 56, block one is expanded; 57, block two is expanded; 58, traction cylinder one; 59, traction cylinder two.
Embodiment
Hereinafter with reference to accompanying drawing, the preferred embodiments of the present invention are described in detail.Should be appreciated that preferred embodiment only in order to the present invention is described, instead of in order to limit the scope of the invention.
First embodiment:
Be the first embodiment of the present invention as Figure 1-5, the controlled many specifications rolling bearing test table of high/low temperature of the present embodiment is the test of angular contact ball bearing high temperature friction, the drive motor 1 comprising pedestal 13 and be arranged on pedestal 13, bearing test device, heating and cooling device and pick-up unit, described bearing test device comprises the bearing test case carrying out bearing test for fixation test bearing, the left bearing chamber 5 that described bearing test case comprises and right bearing chamber 6, the through test main shaft 12 be provided with for testing test bearing in casing between left bearing chamber 5 and right bearing chamber 6, one end of described test main shaft 12 is extended left bearing chamber 5 and is fixed with electric machine main shaft, the other end extends right bearing chamber 6 and an axial loading device is fixed, described axial loading device comprises to be fixed with test main shaft 12 and transmits the pull bar 10 of axial load and be connected with pull bar 10 and apply the axial servo electric jar 11 of axial load, described test main shaft 12 is also provided with radial loading device, what described radial loading device comprised slip to be arranged on pedestal the radial servo electric cylinder 7 that can apply radial load to test main shaft 12, radial loaded can be carried out to test main shaft 12 diverse location by the radial servo electric cylinder 7 slided, described pick-up unit comprises and is arranged on torque sensor between motor 1 and left bearing chamber 53 and is arranged on the vibration acceleration sensor detected on bearing, temperature sensor, displacement transducer, between described torque sensor 3 and motor 1, respectively by positive coupling 2 between described torque sensor 3 and left bearing chamber 5, Hooks coupling universal coupling 4 connects, the internal stress that main shaft 12 is formed is tested under can eliminating radial/axial load, described drive motor 1, positive coupling 2, torque sensor 3, Hooks coupling universal coupling 4, left test bearing case 5, test main shaft 12, right test bearing case 6, the axis of pull bar 10 and axial servo electric jar 11 is all arranged on same straight line, guarantee robust motion, improve accuracy of detection.
As the improvement of the present embodiment, described heating and cooling device comprises being arranged in bearing test case can be provided the heating arrangement of hot environment and provide the heat sink of low temperature environment, described heating arrangement comprises the annular-heating plate 30 be arranged in casing, described annular-heating plate 30 is made up of resistant to elevated temperatures mica heating plate, and described heat sink comprises and is arranged on cold air duct 33 in casing and the eddy current cold air blasting gun 34 be communicated with cold wind source being arranged on cold air duct 33 air inlet.When carrying out hot test, test bearing case internal high temperature environment to be generated heat generation by the annular-heating plate 30 that bearing cap 2 26 is installed, the high temperature of lubricating oil is then provided by the heating tube 45 being positioned at fuel tank 44, adopt mica heating plate long service life, thermal field is even, can temperature control dry combustion method 20000 hours under 210 DEG C of environment; When carrying out low-temperature test, then the eddy current cold air blasting gun be communicated with by cold wind source 34 pairs of chambers add low-temperature circulating media implementation low temperature environment.
As the improvement of the present embodiment, test main shaft 12 in described left bearing chamber 5 and right bearing chamber 6 and respective cabinets cavity form the bearing installing space that at least can hold a paired test bearing arranged, namely at least at least can place a bearing to test in left bearing chamber 5 and right bearing chamber 6, and can arrange simultaneously, test in pairs, this facilitates testing table to carry out polytype rolling bearing test, when carrying out angular contact ball bearing and taper roll bearing test, test bearing needs to arrange in pairs, other types rolling bearing is without this requirement, the present embodiment is angular contact ball bearing test, institute thinks paired setting, as shown in Figure 3, be provided with in described bearing installing space and adapt to the fixing bearing fixing device of different size bearing, described bearing fixing device comprises the bearing inner race diameter alignment rings 27 being nested in test bearing inner sleeve and the bearing outer diameter adjustment ring being placed on test bearing outer ring, described bearing inner race diameter alignment rings 27 is fixed with test main shaft 12, the casing at described bearing outer diameter adjustment ring and place is fixed, described bearing inner race diameter alignment rings 27 arranges multiple from bearing outer diameter adjustment ring by different bearing designation, when changing the rolling bearing of different size, need according to its internal-and external diameter size at the different bearing inner race diameter alignment rings 27 of bearing inner race setting-in, different bearing outer diameter adjustment rings 1 or bearing outer diameter adjustment ring 2 37 is set with at bearing outer ring, with the radial location of this warranty test bearing.
As the improvement of the present embodiment, according to the difference of different size bearing enclose height, when changing the rolling bearing of different size, need according to its internal-and external diameter size at bearing inner race setting-in bearing inner race diameter alignment rings 27, in bearing outer ring bearing set race diameter adjustment ring 1 or race diameter adjustment ring 2 37, with the radial location of this warranty test bearing, according to the difference of different size bearing enclose height, select inner ring baffle ring 1 and the inner ring baffle ring 2 28 of reasonable size, inner ring diameter adjustment ring 27 is locked with stop washer 1 and set nut 1, continue to lock test bearing inner ring with stop washer 2 21 and set nut 2 20, thus the axial location of warranty test bearing inner race, with screw fastening outer ring baffle ring 1 and outer ring baffle ring 2 38 in race diameter adjustment ring 2 37, wherein, bearing inner race diameter alignment rings 27, bearing outer diameter adjustment ring 1, bearing outer diameter adjustment ring 2 37, inner ring baffle ring 1, inner ring baffle ring 2 28, outer ring baffle ring 1 and outer ring baffle ring 2 38 all need to customize according to test bearing size, stop washer 1, stop washer 22, set nut 1 and set nut 2 20 are universal parts, do not need customization.For 6300 serial deep groove ball bearings, testable 6300 bearings of this testing table can be as small as 6304 types, greatly to 6314 type, wherein, 6304 profile shafts hold key dimension: internal diameter 20mm, external diameter 52mm, width 15mm, 6314 profile shafts hold key dimension: internal diameter 70mm, external diameter 150mm, width 35mm.By researching and analysing all types rolling bearing size within the scope of internal diameter 20-70mm, find that its internal diameter value is nothing more than 20,25,30,35,40,45,50,55,60,65 and 70mm, amount to 11 kinds of sizes, external diameter value is nothing more than 47,52,55,58,62,65,68,72,75,78,80,85,90,95,100,110,115,120,125,130,140 and 150mm, amount to 22 kinds of sizes, therefore only need the part customizing limited quantity to meet testing requirements.It is to be noted, no matter how radial dimension changes, bearing inner race diameter alignment rings 27, bearing outer diameter adjustment ring 1, race diameter adjustment ring 2 37, inner ring baffle ring 1, inner ring baffle ring 2 28, outer ring baffle ring 1 and outer ring baffle ring 2 38 are changeless in the size of axis, being designed with like this is beneficial to minimizing manufacturing procedure, saves machining period.
As the improvement of the present embodiment, described radial loading device also comprises supporting seat 8 for fixed radial servo electric jar and the supporting seat slide rail 9 that is fixed on pedestal.Slided on supporting seat slide rail 9 by supporting seat, drive the slip of radial servo electric cylinder 7 on slide rail, thus realize the radial loaded to test main shaft 12 diverse location, to adapt to the needs of different tests.
As the improvement of the present embodiment, " the travelling supporting of left fulcrum that described test main shaft 12 adopts, right fulcrum twin fixed guide-vane " bearing arrangement, namely for left test bearing 22, if it is inseparable release that it is Internal and external cycle, as angular contact ball bearing, then only need to fix its inner ring, if it is Internal and external cycle separated type, as cylinder roller bearing, then its Internal and external cycle all needs to fix, for right test bearing 36, its Internal and external cycle all needs axial restraint, its inner ring need bear axial thrust, pulling force and push-and-pull alternate load, this load is put on the right side of test main shaft 12 through pull bar 10 by axial servo electric jar 11, and then pass to the inner ring of right test bearing 36.
As the improvement of the present embodiment, also comprise temperature control system, described temperature control system comprises the master control computer 53, PLC 52, the temperature control terminal 41 that are interconnected, described temperature control terminal 41 is communicated with cold air duct 33 with annular-heating plate 30, heating tube 45, described PLC 52 is communicated with bearing temperature sensor 47 with lubricating oil temperature sensor 46, and described temperature control terminal 41 is provided with low temperature adjusting knob 39 for Non-follow control and high temperature adjusting knob 40.During concrete enforcement, described eddy current cold air blasting gun 34 can preferentially select model to be the product of VC90035H, and its cold air end has exhaust box, the cooling pipe orifice maximum temperature range of decrease up to-40 DEG C ~-50 DEG C, described test bearing case interior environment temperature regulates two kinds of shaping modes, i.e. manual adjustment mode and automatic shaping modes, under manual adjustment mode, temperature is regulated by low temperature adjusting knob 39 or high temperature adjusting knob 40, under automatic shaping modes, the temperature amplitude detected each temperature sensor is comprehensively analyzed by master control computer 53, then temperature control instruction is conveyed to PLC 52 and temperature control terminal 41, and then controlled vortex flow cold air blasting gun 34 or annular-heating plate 30 carry out temperature adjustment, described temperature sensor is responsible for the temperature feedback that records to PLC 52, be divided into two types, wherein, lubricating oil temperature sensor 46 adopts sonde-type thermal resistance temperature sensor, bearing temperature sensor 1, bearing temperature sensor 2 48, bearing temperature sensor 3 49 and bearing temperature sensor 4 50 all adopt non-contact infrared temperature sensor, this infrared temperature sensor should have low-temperature measurement function, for measuring each part temperatures of test bearing, its infrared probe is arranged in the chute 48 of the bearing cap 1 adopting translucent high temperature resistant polysulfones plate to make, through translucent bearing cap 1, experimenter can be free to slide infrared probe along chute 48, by the inner ring of infrared beam difference directive test bearing, rolling body, retainer and outer ring, thus accurately measure test bearing inner ring, rolling body, the temperature of retainer and outer ring.
As the improvement of the present embodiment, also comprise lubricating system, described lubricating system comprises and is separately positioned on Lubricating oil nozzle 16 in left bearing chamber 5 and right bearing chamber 6 and spill port, and the Lubricating oil tank 44 to be communicated with by return line 43 with spill port by in-line 54 connected sum with nozzle 16, described lubricating system can supply and reclaim lubricating oil, during supply lubricating oil, for the operating mode that test main shaft 12 rotating speed is lower, the mode of oil bath lubrication can be adopted to lubricate test bearing, now need to close spill port 1 and spill port 2 25, ensure that lubricating oil liquid level is not higher than the center of minimum rolling body, for the operating mode that test main shaft 12 rotating speed is higher, the mode of oil jet lubrication can be adopted to lubricate test bearing, lubricating oil in fuel tank 44 arrives the Lubricating oil nozzle 16 that can be free to slide along chute 51 through in-line 54, through translucent bearing cap 1, experimenter can by the gap between nozzle 16 alignment test bearing inner race and retainer, abundant to ensure oil jet lubrication, fuel supply flow rate, pressure, the lubricating condition such as temperature are controlled, when reclaiming lubricating oil, used lubricating oil through spill port 1 and spill port 2 25 common stream to return line 43, this lubricating oil can reclaim and filter to recycle by fuel tank 44.
As the improvement of the present embodiment, described torque sensor 3 adopts contactless dynamic torque sensor; Described axial servo electric jar 11 carries push-pull effort sensor function, can the axial thrust that exports to servo electric jar 11 of detection axis and pulling force in real time, and measurement data is fed back to PLC 52, its pull bar 10 is detachable, retractable, delivery stroke is accurately controlled by the planetary ball leading screw of charger inside, specifically preferentially can select the GSX30 type product that Exlar company produces, described radial servo electric cylinder 7 also can select same type product; Described vibration acceleration sensor is miniature three axis accelerometer, to be arranged on test main shaft 12 inside left test bearing case 5 and right test bearing case 6 end, for detecting the vibration acceleration of two test bearings in three directions, this detected value can as the judge index of test bearing wearing and tearing; PLC 52 is responsible for receiving the data gathering each sensor and detect, and these data are passed to master control computer 53 through communication bus, the built-in analysis software of master control computer 53 can carry out data analysis, process and output, and can control drive motor 1 output speed, the loading position/loading force of radial servo electric cylinder 7, the lubricating condition such as loading force, test bearing case internal temperature, fuel supply flow rate/Pressure/Temperature of axial servo electric jar 11 by direct at computer interface input parameter.
When using this testing table to carry out acceleration friction-wear test, first on test bearing, apply a radial or axial pretightning force, then drive test bearing to rotate by drive motor 1.When there is gummed or wear out failure in test bearing, bearing temperature and moment of torsion certainly will fluctuate, therefore, the bearing dynamic torque value that the bearing temperature value that can detect in conjunction with bearing temperature sensor 1, bearing temperature sensor 2 48, bearing temperature sensor 3 49 and bearing temperature sensor 4 50 and torque sensor 3 detect, judges damage and the damaged condition of test bearing.
Second embodiment:
Fig. 6 is the structural representation of the left bearing chamber of the second embodiment of the present invention, diameter adjusting mechanism is provided with unlike on the bearing inner race diameter alignment rings of the present embodiment and bearing outer diameter adjustment ring with the first embodiment, diameter adjusting mechanism on described bearing inner race diameter alignment rings comprises at least three pieces of expansion blocks 1 and carries out expanding the traction cylinder 1 of traction to expansion block 1, diameter adjusting mechanism in described bearing outer diameter adjustment ring comprises at least three pieces of expansion blocks 2 57 and carries out expanding the traction cylinder 2 59 of traction to expansion block 2 57, for convenience of fixing, traction cylinder fixed orifice can be processed for solid bearing inner ring diameter adjustment ring on test main shaft, solve the problem of limited space, described traction cylinder is multistage hydraulic cylinder or cylinder, adopt multilevel hierarchy, available less structure space realizes longer elongated distance, thus solution the present invention needs to realize the fixing design object of many specifications bearing in little space, and need not need change corresponding adjustment ring by the first embodiment different size bearing, make fixed efficiency higher, be conducive to the stability improving test efficiency and equipment.
The present invention, by internal diameter adjustment ring and external diameter adjustment ring, can increase the trial stretch of this testing table, realize aligning/angular contact/deep groove ball bearing, aligning/circular cone/cylinder roller bearing, the rolling bearing test of the polytypes such as needle bearing and on a large scale size, regulates the temperature environment of bearing chamber by heating and cooling device, make employing a set of equipment with regard to the rolling bearing all-round property testing under energy various temperature condition, and pass through pick-up unit, temperature control system and lubricating system can carry out temperature, dynamic torque, vibration acceleration, the real-time online of the performance parameters such as radial/axial loading force detects, and realizes different bearing operating ambient temperature, radial/axial load, the speed of mainshaft, the Temperature Rising Law under lubricating condition, temperature distribution state, vibration, material behavior, rubbing wear, friction pair military service behavioral implications is studied, and greatly improve the versatility of testing table, a set of equipment can realize different bearing, different load, the experimental study of different target, contributes to significantly reducing R&D costs, by the simulation to rolling bearing actual condition, is the optimal design of rolling bearing in engineering machinery, behavioral characteristic characterizes, dynamic analysis, failure Mechanism, fail-safe analysis provides great project reference value.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. the controlled many specifications rolling bearing test table of high/low temperature, comprise pedestal and be arranged on the drive motor on pedestal, bearing test device, heating and cooling device and pick-up unit, it is characterized in that: described bearing test device comprises the bearing test case carrying out bearing test for fixation test bearing, described bearing test case comprises left bearing chamber and right bearing chamber, the through test main shaft be provided with for testing test bearing in casing between left bearing chamber and right bearing chamber, one end of described test main shaft extends left bearing chamber and electric machine main shaft is fixed, the other end extends right bearing chamber and an axial loading device is fixed,
Described axial loading device comprises to be fixed with test main shaft and transmits the pull bar of axial load and be connected with pull bar and apply the axial servo electric jar of axial load,
Described test main shaft is also provided with radial loading device, and what described radial loading device comprised slip to be arranged on pedestal the radial servo electric cylinder that can apply radial load to test main shaft diverse location,
Described pick-up unit comprises and is arranged on torque sensor between motor and left bearing chamber and is arranged on the vibration acceleration sensor, temperature sensor, the displacement transducer that detect on bearing,
Described torque sensor is connected respectively by positive coupling, Hooks coupling universal coupling with between left bearing chamber with between motor, and the axis of described drive motor, positive coupling, torque sensor, Hooks coupling universal coupling, left test bearing case, test main shaft, right test bearing case, pull bar and axial servo electric jar is all arranged on same straight line.
2. the controlled many specifications rolling bearing test table of high/low temperature according to claim 1, it is characterized in that: described heating and cooling device comprises being arranged in bearing test case can be provided the heating arrangement of hot environment and provide the heat sink of low temperature environment, described heating arrangement comprises the annular-heating plate be arranged in casing, described annular-heating plate is made up of resistant to elevated temperatures mica heating plate, and described heat sink comprises and is arranged on cold air duct in casing and the eddy current cold air blasting gun be communicated with cold wind source being arranged on cold air duct air inlet.
3. the controlled many specifications rolling bearing test table of high/low temperature according to claim 1, it is characterized in that: the test main shaft in described left bearing chamber and right bearing chamber and respective cabinets cavity form the bearing installing space that at least can hold the test bearing that is arranged in pairs, described bearing installing space is provided with the bearing fixing device adapting to different size bearing and fix.
4. the controlled many specifications rolling bearing test table of high/low temperature according to claim 3, it is characterized in that: described bearing fixing device comprises the bearing inner race diameter alignment rings being nested in test bearing inner ring and the bearing outer diameter adjustment ring being coated at test bearing outer ring, described bearing inner race diameter alignment rings is fixed with test main shaft, the casing at described bearing outer diameter adjustment ring and place is fixed, and described bearing inner race diameter alignment rings arranges multiple from bearing outer diameter adjustment ring by different bearing designation.
5. the controlled many specifications rolling bearing test table of high/low temperature according to claim 3, it is characterized in that: described bearing fixing device comprises the bearing inner race diameter alignment rings being nested in test bearing inner sleeve and the bearing outer diameter adjustment ring being coated at test bearing outer ring, described bearing inner race diameter alignment rings is fixed with test main shaft, the casing at described bearing outer diameter adjustment ring and place is fixed, described bearing inner race diameter alignment rings and bearing outer diameter adjustment ring are provided with diameter adjusting mechanism, described diameter adjusting mechanism comprises at least three pieces of expansion blocks and carries out expanding the traction cylinder of traction to expansion block, described traction cylinder is multistage hydraulic cylinder or cylinder.
6. the controlled many specifications rolling bearing test table of high/low temperature according to claim 1, is characterized in that: described radial loading device also comprise for fixed radial servo electric jar supporting seat and be fixed on supporting seat slide rail on pedestal.
7. the controlled many specifications rolling bearing test table of high/low temperature according to claim 1, is characterized in that: the bearing arrangement that described test main shaft adopts " the travelling supporting of left fulcrum, right fulcrum twin fixed guide-vane ".
8. the controlled many specifications rolling bearing test table of high/low temperature according to claim 1, it is characterized in that: described temperature sensor comprises lubricating oil temperature sensor and bearing temperature sensor, described lubricating oil temperature sensor is sonde-type thermal resistance temperature sensor, described bearing temperature sensor is non-contact infrared temperature sensor, and its infrared probe is movably arranged in bearing test case on the chute of the bearing cap adopting trnaslucent materials to make.
9. the controlled many specifications rolling bearing test table of high/low temperature according to claim 1, it is characterized in that: also comprise lubricating system, described lubricating system comprises and is separately positioned on Lubricating oil nozzle in left bearing chamber and right bearing chamber and spill port, and with the Lubricating oil tank that nozzle is communicated with by return line with spill port by in-line connected sum, be provided with the heating tube for improving oil temperature in described fuel tank.
10. the controlled many specifications rolling bearing test table of high/low temperature according to claim 9, it is characterized in that: also comprise temperature control system, described temperature control system comprises the master control computer, PLC, the temperature control terminal that are interconnected, described temperature control terminal is communicated with cold air duct with annular-heating plate, heating tube, described PLC is communicated with bearing temperature sensor with lubricating oil temperature sensor, and described temperature control terminal is provided with low temperature adjusting knob for Non-follow control and high temperature adjusting knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105651514A (en) * | 2016-03-14 | 2016-06-08 | 兰州空间技术物理研究所 | Comprehensive performance testing device for rolling ball bearing |
| CN105806619A (en) * | 2016-03-14 | 2016-07-27 | 兰州空间技术物理研究所 | Rolling ball bearing test device applicable to small angle swinging condition |
| CN106092576A (en) * | 2016-06-20 | 2016-11-09 | 苏州东菱科技有限公司 | Multifunction bearing pilot system |
| CN106525432A (en) * | 2016-12-26 | 2017-03-22 | 河南科技大学 | Dual-rotor bearing testing machine test cabin and recovered oil structure |
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| CN106969915A (en) * | 2017-03-28 | 2017-07-21 | 浙江工业大学之江学院 | The many specification rolling bearing test tables of apical axis type that a kind of electric cylinder is clamped |
| CN107024353A (en) * | 2017-05-11 | 2017-08-08 | 浙江省机电设计研究院有限公司 | A kind of sealed bearings combination property simulation test machine |
| CN107084841A (en) * | 2017-03-28 | 2017-08-22 | 浙江工业大学之江学院 | The many specification rolling bearing test tables of hydraulic cylinder clamped-in style installed based on multi-diameter shaft |
| EP3279632A1 (en) * | 2016-08-05 | 2018-02-07 | KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH | Testing apparatus and method for testing the thermal behavior of an axlebox |
| CN108051215A (en) * | 2018-02-01 | 2018-05-18 | 中国人民解放军海军航空大学 | High speed roller bearing machinery loading device synchronous with thermal force and method |
| CN108120536A (en) * | 2017-12-15 | 2018-06-05 | 兰州真空设备有限责任公司 | A kind of oscillating bearing measurement of friction torque system and method for vacuum high/low temperature condition |
| CN108731943A (en) * | 2018-08-13 | 2018-11-02 | 浙江优特轴承有限公司 | Bearing dynamic characteristics tester |
| CN109060349A (en) * | 2018-07-19 | 2018-12-21 | 洛阳轴承研究所有限公司 | The testing equipment and test method of screw type refrigerating compressor rotor supports bearing |
| CN109141877A (en) * | 2017-06-27 | 2019-01-04 | 上海电驱动股份有限公司 | A kind of bearing test device for driving motor |
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| CN110307979A (en) * | 2019-08-12 | 2019-10-08 | 中车株洲电机有限公司 | A kind of bearing visual test device and method |
| CN110514442A (en) * | 2019-09-04 | 2019-11-29 | 苏州新豪轴承股份有限公司 | Bearing test tooling and bearing tester |
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| CN105806619A (en) * | 2016-03-14 | 2016-07-27 | 兰州空间技术物理研究所 | Rolling ball bearing test device applicable to small angle swinging condition |
| CN105651514A (en) * | 2016-03-14 | 2016-06-08 | 兰州空间技术物理研究所 | Comprehensive performance testing device for rolling ball bearing |
| CN106092576A (en) * | 2016-06-20 | 2016-11-09 | 苏州东菱科技有限公司 | Multifunction bearing pilot system |
| EP3279632A1 (en) * | 2016-08-05 | 2018-02-07 | KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH | Testing apparatus and method for testing the thermal behavior of an axlebox |
| CN106525432A (en) * | 2016-12-26 | 2017-03-22 | 河南科技大学 | Dual-rotor bearing testing machine test cabin and recovered oil structure |
| CN106840673A (en) * | 2017-02-17 | 2017-06-13 | 武汉理工大学 | Marine diesel slides base bearing pyroelectric signal caliberating device and scaling method |
| CN106840673B (en) * | 2017-02-17 | 2019-03-26 | 武汉理工大学 | Marine diesel slides base bearing pyroelectric signal caliberating device and scaling method |
| CN106969915B (en) * | 2017-03-28 | 2019-02-01 | 浙江工业大学之江学院 | A kind of more specification rolling bearing test tables of apical axis type that electric cylinder clamps |
| CN106969915A (en) * | 2017-03-28 | 2017-07-21 | 浙江工业大学之江学院 | The many specification rolling bearing test tables of apical axis type that a kind of electric cylinder is clamped |
| CN107084841A (en) * | 2017-03-28 | 2017-08-22 | 浙江工业大学之江学院 | The many specification rolling bearing test tables of hydraulic cylinder clamped-in style installed based on multi-diameter shaft |
| CN107024353A (en) * | 2017-05-11 | 2017-08-08 | 浙江省机电设计研究院有限公司 | A kind of sealed bearings combination property simulation test machine |
| CN109141877A (en) * | 2017-06-27 | 2019-01-04 | 上海电驱动股份有限公司 | A kind of bearing test device for driving motor |
| CN108120536A (en) * | 2017-12-15 | 2018-06-05 | 兰州真空设备有限责任公司 | A kind of oscillating bearing measurement of friction torque system and method for vacuum high/low temperature condition |
| CN108051215A (en) * | 2018-02-01 | 2018-05-18 | 中国人民解放军海军航空大学 | High speed roller bearing machinery loading device synchronous with thermal force and method |
| CN109060349B (en) * | 2018-07-19 | 2020-09-25 | 洛阳轴承研究所有限公司 | Testing equipment and testing method for rotor support bearing of screw type refrigeration compressor |
| CN109060349A (en) * | 2018-07-19 | 2018-12-21 | 洛阳轴承研究所有限公司 | The testing equipment and test method of screw type refrigerating compressor rotor supports bearing |
| CN108731943A (en) * | 2018-08-13 | 2018-11-02 | 浙江优特轴承有限公司 | Bearing dynamic characteristics tester |
| CN109357869A (en) * | 2018-10-15 | 2019-02-19 | 西北工业大学 | Bearing rotation and radial load combined test device under hot environment |
| CN111811816A (en) * | 2019-04-09 | 2020-10-23 | 上汽通用汽车有限公司 | Bearing durability test bench and bearing durability test method |
| CN111811816B (en) * | 2019-04-09 | 2022-08-16 | 上汽通用汽车有限公司 | Bearing durability test bench and bearing durability test method |
| CN110307979A (en) * | 2019-08-12 | 2019-10-08 | 中车株洲电机有限公司 | A kind of bearing visual test device and method |
| CN110514442A (en) * | 2019-09-04 | 2019-11-29 | 苏州新豪轴承股份有限公司 | Bearing test tooling and bearing tester |
| CN110987429A (en) * | 2019-12-09 | 2020-04-10 | 西安工业大学 | Low-speed helicopter bearing test device |
| CN110987429B (en) * | 2019-12-09 | 2021-07-27 | 西安工业大学 | Low-speed helicopter bearing test device |
| CN110954327A (en) * | 2019-12-27 | 2020-04-03 | 广东石油化工学院 | Grease lubrication rolling bearing life acceleration experiment device based on switched reluctance motor |
| CN111624224A (en) * | 2020-06-05 | 2020-09-04 | 杭州临江环保热电有限公司 | Bearing maintenance equipment and bearing maintenance process using same |
| CN112345243A (en) * | 2020-10-26 | 2021-02-09 | 西北工业大学深圳研究院 | Rolling bearing ultralow-temperature working condition environment simulation device |
| CN113049789A (en) * | 2021-03-18 | 2021-06-29 | 大连工业大学 | Rolling bearing lubricating oil flow and temperature characteristic test device and test method |
| CN113418702A (en) * | 2021-07-26 | 2021-09-21 | 重庆大学 | Pitch-changing bearing high-strength steel crack simulation monitoring test device |
| CN114486253A (en) * | 2022-02-09 | 2022-05-13 | 哈尔滨理工大学 | Comprehensive performance testing machine for cylindrical roller bearing and testing method thereof |
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