CN114646466A - Rolling bearing test equipment with load and assembly double simulation - Google Patents
Rolling bearing test equipment with load and assembly double simulation Download PDFInfo
- Publication number
- CN114646466A CN114646466A CN202210331260.1A CN202210331260A CN114646466A CN 114646466 A CN114646466 A CN 114646466A CN 202210331260 A CN202210331260 A CN 202210331260A CN 114646466 A CN114646466 A CN 114646466A
- Authority
- CN
- China
- Prior art keywords
- bearing
- tested
- main shaft
- supporting
- box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention belongs to the technical field of bearing testing, and provides rolling bearing testing equipment with load and assembly double simulation. The assembly simulation device and the loading system provided by the invention can realize the simulation of the parallel misalignment state and the angle misalignment state of the bearing, and the axial loading and the radial loading of the bearing, thereby realizing the freedom degree assembly simulation of the tested bearing 3.
Description
Technical Field
The invention belongs to the technical field of bearing testing, and particularly relates to a bearing testing device capable of applying radial force and axial force and simulating bearing assembly errors.
Background
The rolling bearing is an important part of a rotating machine, the performance of the rolling bearing directly influences the performance of equipment, the rolling bearing is extremely important to a bearing performance testing and testing device, and from the bearing angle, the bearing bears radial or axial load, but the assembling error inevitably exists in the assembling process, so the rolling bearing has important significance to the performance testing of the bearing under the bearing and assembling.
At present, most of bearing test devices adopt testers under loading (axial, radial and the like) load conditions (as shown in patent No. 202021624769.8 named as a rolling bearing test bed and patent No. 202021190892.3 named as a rolling bearing test bed).
Whereas the assembly of the bearing assembly simulation involves parallel misalignment, the method is characterized in that the angle is not centered, and the current simulation is carried out from the misalignment of a rotor, and the angle is simulated from the misalignment of a shaft system (for example, the patent number 202110712928.2 is a simulation device and a misalignment adjusting method for the misalignment fault of a propulsion shaft system; the patent number 202021698451.4 is a support structure for simulating a detection device for the misalignment of the shaft, the patent number 201910672669.8 is a detection and adjustment method for the misalignment of the shaft system of a turbine generator set; the patent number 201910812807.8 is a simulation experiment table for the misalignment fault of the shaft line of a gear transmission system), and the like, and the elevation of a support object is changed through the relative movement of a conical slide block from the shaft (for example, the patent number 200910303519.6 is an online elevation adjusting device for a bearing of a rotary machine) in the field of elevation adjustment of bearings of the rotor fault of the parallel misalignment continuously adjustable rotor, the patent number 201710075680.7 is a simulation mechanism of the misalignment continuously adjustable rotor fault, the patent number 201710152046.9 is a simulation mechanism of the continuously adjustable angle misalignment rotor fault, and the elevation of the bearing of Zhao Guangdong and the like; korean qingka et al used a fulcrum misalignment from the rotor assembly angle to simulate rotor misalignment (as shown in patent No. 201610489309.0 entitled rotor system with fulcrum misalignment adjustment). At present, a bearing test device can only realize bearing loading load but not realize non-centering load, most of bearing non-centering is realized on a rotor test bed, a double-simulation synchronous tester capable of developing load and assembling is lacked, and special rolling bearing test equipment with load and assembling double-simulation is needed from the aspect of loading and assembling bearing tests.
Disclosure of Invention
The device aims to solve the defects of the prior art, and provides the rolling bearing test equipment with the assembly simulation device 4 and the loading device and the test method, so that the horizontal misalignment state and the multi-angle misalignment state of the bearing can be simulated, the axial loading and the radial loading of the bearing can be simulated, and the vibration test research can be carried out.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rolling bearing test device with load and assembly double simulation mainly comprises a driving device 1, a main shaft supporting device 2, a tested bearing device 3, an assembly simulation device 4, a loading device 5, a bearing test box 6, a test system 7 and a T-shaped table 8;
the driving device 1 provides driving force for rolling bearing test equipment and mainly comprises a diaphragm coupler 11, a motor support 12 and a driving motor 13; one end of the diaphragm coupling 11 is connected with an output shaft of the driving motor 13, and the other end is connected with the main shaft 212 and used for transmitting the driving force between the driving motor 13 and the main shaft 212; the upper surface of the motor bracket 12 is fixedly connected with the ground feet of the driving motor 13 through bolts, and the lower surface of the motor bracket 12 is fixedly connected with the T-shaped table 8 through T-shaped bolts and used for supporting the driving motor 13; the driving motor 13 is driven by a variable frequency motor, so that the output rotating speed of the driving motor 13 can be conveniently adjusted, and the rotating speed of the main shaft 212 can be controlled;
the main shaft supporting device 2 is used for transmitting driving force between the driving device 1 and the tested bearing device 3 and providing supporting force for the tested bearing device 3, and mainly comprises a first supporting bearing 21, a second supporting bearing 22, a main shaft supporting sleeve 23, a sealing lock nut 24, a first supporting bearing oil nozzle 25, a main shaft sleeve 26, a supporting bearing spacer 27, a second supporting bearing oil nozzle 28, a second supporting bearing transparent cover 29, a first supporting bearing transparent cover 210, a sealing pressure plate 211 and a main shaft 212; flanges are arranged on two sides of the main shaft support sleeve 23 and connected with the main shaft system protective box 61 and the box base 62, a first support bearing 21 and a second support bearing 22 are arranged in a middle hole of the main shaft support sleeve 23 and are respectively positioned on two ends of the main shaft support sleeve 23; the first supporting bearing through cover 210 and the second supporting bearing through cover 29 are correspondingly arranged outside the first supporting bearing 21 and the second supporting bearing 22, the first supporting bearing oil nipple 25 is fixed on an oil inlet hole of the first supporting bearing through cover 210, and the second supporting bearing oil nipple 28 is fixed on an oil inlet hole of the second supporting bearing through cover 29 and is used for providing lubricating oil for the first supporting bearing 21 and the second supporting bearing 22; the main shaft 212 is positioned in the main shaft support sleeve 23, and a main shaft sleeve 26 is sleeved on the main shaft part in the main shaft support sleeve 23; the sealing pressure plate 211 is located outside the first support bearing transparent cover 210, and is matched with the first support bearing transparent cover 210 for sealing the main shaft support device 2; the left end of the sealing pressure plate 211 is in contact with the sealing lock nut 24, the right end of the sealing pressure plate is in contact with the inner ring of the first support bearing 21, and the sealing lock nut 24 is matched with the main shaft 212 and used for adjusting the axial position of the sealing pressure plate 211; the sealing pressure plate 211 is used for transmitting the axial force between the sealing lock nut 24 and the inner ring of the first support bearing 21, so as to axially position the inner ring of the first support bearing 21; the supporting bearing spacer 27 is positioned between the two bearings of the second supporting bearing 22, and the left end and the right end of the supporting bearing spacer are respectively contacted with the inner ring and the outer ring of the two supporting bearings to prevent the two supporting bearings from being directly contacted;
the tested bearing device 3 is used for mounting a tested piece and a sensor and mainly comprises a tested bearing seat 31, a tested bearing outer ring sleeve 32, a first tested bearing transparent cover 33, a tested bearing inner ring sleeve 34, a tested bearing 35, a second tested bearing end cover 36 and a fixing plate 37; the ground feet of the tested bearing seat 31 are connected with the top sizing block 41, and a through hole is formed in the radial position of the tested bearing seat 31 and used for placing a sensor; one side surface of the bearing seat 31 to be tested is connected with the fixing plate 37 through a bolt and is used for realizing the installation of the axial loading device 52 and the force sensor; the other side surface of the tested bearing seat 31 is connected with the tested bearing outer ring sleeve 32, the tested bearing outer ring sleeve 32 is matched and fixed with the tested bearing 35, the inner ring of the tested bearing 35 is matched and fixed with the outer ring of the tested bearing inner ring sleeve 34, and the tested bearing 35 is fixed through a second tested bearing end cover 36; the first tested bearing transparent cover 33 is fixedly arranged outside the tested bearing outer ring sleeve 32; the tested piece with different models is replaced by replacing the tested bearing inner ring sleeve 34 and the tested bearing outer ring sleeve 32;
the assembly simulation device 4 comprises a parallel misalignment simulation device and an angle misalignment error simulation device;
the parallel misalignment simulation device is used for meeting the coaxiality requirement of the central axis of the tested bearing 35 and the central axis of the main shaft 212 and mainly comprises a top sizing block 41, a wedge-shaped adjusting block 42, a sizing block base 43, an adjusting screw 44, a connecting bolt 451, a nut 452, a spring 453 and a sizing block guide column 46; the upper surface of the top sizing block 41 is connected with the bearing seat 31 to be tested, and the lower surface of the top sizing block 41 is matched with the contact surface of the wedge-shaped adjusting blocks 42 and is connected with the two wedge-shaped adjusting blocks 42; the two wedge-shaped adjusting blocks 42 are respectively and reversely matched with threads on two sides of the adjusting screw rod 44 and used for adjusting the distance between the two wedge-shaped adjusting blocks 42; the wedge-shaped adjusting block 42 is driven to move by rotating the adjusting screw 44, so that the tested bearing 35 vertically moves up and down, the coaxiality requirement of the central axis of the tested bearing 35 and the central axis of the main shaft 212 is met, the parallel misalignment simulation of the tested bearing 35 is realized, and the misalignment degree is directly calculated by adjusting the screwing number of turns of the adjusting screw 44; in addition, the adjusting screw 44 is matched with the box base 62 and the spatial position and the sealing of the adjusting screw 44 at the same time, so that the adjusting screw 44 is adjusted outside the box body, and the parallel misalignment simulation of the tested bearing 35 can be adjusted without disassembling the box body; the connecting bolt 451 is connected with the sizing block base 43 through a through hole of the top sizing block 41, and the spring 453 is sleeved on the connecting bolt 451, is in contact with the upper surface of the top sizing block 41, is fixed through a hexagonal nut 452 and is used for pre-compressing the top sizing block 41; four guide posts 46 are arranged between the sizing block base 43 and the top sizing block 41 and are uniformly distributed on two sides, so that the top sizing block 41 moves along the vertical direction and has a certain guiding function; the sizing block base 43 is of a boss structure, a rectangular groove is formed in the boss, and the wedge-shaped adjusting block 42 moves along a fixed track formed by the rectangular groove and has a certain guiding function; one side of the sizing block base 43 protrudes, and a through hole for inserting the adjusting screw 44 is formed in the sizing block base;
the angle misalignment error simulation device is used for simulating 2-degree-of-freedom angle deflection and mainly comprises an angle adjusting device 47, an adjusting bolt 471, a gasket 472, a socket head cap screw 473 and an angle adjusting screw 474; two angle adjusting devices 47 are symmetrically arranged on the upper surface of the top sizing block 41; the adjusting bolt 471 is matched and connected with the top sizing block 41 through a gasket 472 and a hexagon socket head cap screw 473, the angle adjusting screw 474 is installed on the side surface of the angle adjusting device 47, the output end of the angle adjusting screw 474 abuts against the tested bearing device 3, the tested bearing device 3 deflects by rotating the angle adjusting screw 474, so that the angle misalignment simulation of the tested bearing 35 is realized, and the deflection angle is directly calculated through the number of turns of the adjusting screw 474 during screwing; in addition, the angle adjusting screw 474 is matched with the first box observation window 611 and the second box observation window 612, so that after the box body and the tested piece are assembled, the angle misalignment simulation of the tested bearing 35 can be adjusted without disassembling the box body;
the loading device 5 is used for providing required radial load and axial load for test equipment, and mainly comprises a radial loading device 51 and an axial loading device 52; the radial loading device 51 is used for providing required radial load for the test device, and mainly comprises a hydraulic cylinder 511, an O-shaped ring 512, a first hexagon nut 513, an S-shaped column pressure sensor 514, a second hexagon nut 515 and a base 516, wherein the radial loading device 51 is arranged at a through hole 66 of the radial loading device and is fixedly connected with a protection box 63 of the tested device through bolts, the radial load loading is realized by controlling the radial hydraulic cylinder 511, and the radial loading device is combined with the S-shaped column pressure sensor 514, so that the loading of the radial load is realized more conveniently and accurately; the O-shaped ring 512 is matched with the hydraulic cylinder 511 to realize the sealing function; the upper part of the S-shaped column type pressure sensor 514 is connected with the hydraulic cylinder 511 and fixed through a first hexagonal nut 513, and the lower part thereof is connected with a pad 516 and fixed through a second hexagonal nut 515 and used for testing the magnitude of the applied radial load; when the test device needs to apply a radial load, the hydraulic cylinder 511 drives the s-column type pressure sensor 514 and the cushion 516 to press the tested bearing seat 31 to generate a vertical radial load; during loading, the assembly simulation module needs to be cancelled; firstly, a bearing seat fixing bolt needs to be loosened; then, the adjusting screw 44 is rotated to enable the tested bearing device 3 to fall to the lowest end, and a displacement allowance is reserved for radial loading;
the axial loading device 52 is used for providing a required axial load for the test device, and mainly comprises an axial hydraulic cylinder 521, an inner hexagonal socket head cap screw 522, a hexagonal nut 523, a Y-shaped joint 524, a pin 525, a cotter pin 526, a spoke connecting lifting lug 527, a fourth hexagonal nut 528 and a spoke pressure sensor 529; the axial loading device 52 is arranged at the through hole 67 of the axial loading device, is fixedly connected with the axial connecting box 64 through bolts, realizes radial load loading through controlling the axial hydraulic cylinder 521, and realizes the loading of axial load by combining with the spoke pressure sensor 529; the axial hydraulic cylinder 521 is connected with the axial connecting box 64 through an inner hexagonal socket head cap screw 522, the bottom of the axial hydraulic cylinder 521 is connected with a Y-shaped joint 524 and fixed through a hexagonal nut 523; one end of a spoke connecting lifting lug 527 is connected with a spoke pressure sensor 529 and is fixed through a fourth hexagon nut 528, and the other end of the spoke connecting lifting lug 527 is matched with a Y-shaped joint 524 and is fixed through a pin 525; the split pin 526 is inserted into the hole of the pin 525 for anti-loosening; the spoke pressure sensor 529 is coupled to the fixing plate 37 by a screw; when the test device needs to apply an axial load, the axial hydraulic cylinder 521 drives the spoke pressure sensor 529 to transmit the axial load to the fixing plate 37 and the bearing seat 31 to be tested, and the spoke pressure sensor 529 is used for testing the magnitude of the applied axial load so as to realize the loading of the axial load; during loading, the assembly simulation module needs to be cancelled;
the bearing test box 6 is used for mounting various system components and mainly comprises a main shaft system protective box 61, a box base 62, a tested device protective box 63, an axial connecting box 64, a main shaft system observation window 65, a radial loading device through hole 66, an axial loading device through hole 67, a plugging plug 68, an oil discharging plug 69, an oil pipe mounting wiring hole 610, a box body observation window I611, a box body observation window II 612, an oil seal 613 and a plugging plug cap 614; a main shaft system observation window 65 is arranged at the top of the main shaft system protection box 61, so that the running state of the main shaft system can be observed conveniently; the spindle system protective box 61 and the tested device protective box 63 are detachable, so that a tested piece can be conveniently dismounted and mounted, and a sensor can be conveniently mounted; the tested device protection box 63 is fixedly connected with the box base 62 through bolts and used for fixing the bearing radial loading device 51; the axial connecting box 64 is fixedly connected with the tested device protection box 63 and the box base 62 through bolts and is used for fixing the bearing axial loading device 52; a sealing plug 68 is arranged at the joint of the axial connecting box 64 and the adjusting screw 44, and an oil seal 613 is arranged at the joint of the sealing plug 68 and the adjusting screw 44 to prevent the loss of lubricating oil; the box base 62 and the tested device protection box 63 are respectively provided with a lower observation window 611 and an upper observation window 612 on two side surfaces, the lower observation window 611 and the upper observation window 612 are provided with an oil pipe installation wiring hole 610, and the oil pipe installation wiring hole 610 is used for oil inlet pipe installation, sensor wiring and adjustment assembly; an oil return hole for returning lubricating oil is formed in the bottom of the box base 62, and an oil discharging plug 69 is arranged on the oil return hole to provide cooling and lubrication for the first supporting bearing 21, the second supporting bearing 22 and the tested bearing 35, so that the running stability and the service life of the tested bearing 35 are improved; the bottom of the box seat 62 is fixed on the T-shaped table 8 through a T-shaped bolt, and the box seat 62 is internally divided into a box body supporting part and a tested part, so that two working areas are sufficiently isolated, and the mutual pollution of the working environment is prevented;
the test system 7 is characterized in that an acceleration sensor, a thermocouple sensor and an eddy current sensor are arranged on the tested bearing device 3, so that the rolling bearing test equipment is used for the test research of the vibration response characteristics of the outer ring and the retainer under the variable working conditions of the bearing rotation; the test system 7 mainly comprises a first acceleration sensor 71, a second acceleration sensor 72, a third acceleration sensor 73, a thermocouple sensor 74 and an eddy current sensor 75; the first acceleration sensor 71 is mounted in the vertical direction of the bearing seat 31 to be tested and used for measuring the vibration characteristic of the shell of the bearing seat 31 to be tested; the second acceleration sensor 72 is arranged in a measuring hole of the bearing seat 31 to be tested and used for measuring the vibration characteristic of the outer ring sleeve 32 of the bearing to be tested; the third acceleration sensor 73 is arranged in a measuring hole of the outer ring sleeve 32 of the tested bearing and is used for measuring the vibration characteristic of the outer ring of the tested bearing 35; the thermocouple sensor 74 is arranged in a measuring hole of the outer ring sleeve 32 of the tested bearing and is used for measuring the temperature characteristic of the outer ring of the tested bearing 35; the eddy current sensor 75 is arranged in the measuring hole of the first tested bearing transparent cover 33, and the measuring end of the eddy current sensor is opposite to the end face of the retainer for measuring the vibration characteristic of the retainer of the tested bearing 35.
The invention has the beneficial effects that:
(1) the assembly simulation device and the loading system can realize the simulation of the parallel misalignment state and the angle misalignment state of the bearing, the axial loading and the radial loading of the bearing, thereby realizing the freedom degree assembly simulation of the tested bearing 3;
(2) the device is provided with a parallel misalignment simulation device, the tested bearing moves up and down in the vertical direction by rotating the adjusting screw rod to drive the wedge-shaped adjusting block, the coaxiality requirement of the central axis of the tested bearing and the central axis of the main shaft is met, the parallel misalignment simulation of the tested bearing is realized, and the misalignment degree can be directly calculated by adjusting the number of screwing turns of the screw rod; in addition, by matching with the design of the box body, the space position of the adjusting screw rod, the sealing and the like, the adjusting screw rod can be adjusted outside the box body, the parallel misalignment simulation of the tested bearing can be adjusted without disassembling the box body, and the test effect of the test device is prevented from being influenced by frequent disassembly and assembly;
(3) the angle misalignment simulation device provided by the invention enables the bearing seat to deflect the angle around the Y axis by rotating the two angle adjusting screw devices in the same direction; the two angle adjusting screw devices are rotated reversely, so that the bearing seat deflects the angle around the Z axis, the misalignment simulation of the tested bearing angle is realized, and the deflection angle can be directly calculated through the number of turns of the adjusting screw; in addition, by matching with the design of the box body observation window, the angle misalignment simulation of the tested bearing can be adjusted without disassembling the box body after the box body and the tested bearing are assembled;
(4) the spindle supporting device and the tested bearing device provided by the invention realize the replacement of the models of the supporting bearing and the tested bearing by replacing the bearing sleeves (the inner ring sleeve and the outer ring sleeve), thereby meeting the test of various bearing models and meeting the requirement of the rotating speed required by the research of the tested bearing; in addition, the main shaft supporting device adopts a separated supporting sleeve, the supporting device is replaced under the change as small as possible, and the integrated supporting sleeve is simple to process and convenient to replace;
(5) according to the test system provided by the invention, the acceleration sensor, the thermocouple sensor and the eddy current sensor are arranged on the tested bearing device, so that the test equipment can be used for the test research of the vibration response characteristics of the outer ring and the retainer under variable working conditions (rotating speed and load) under the bearing rotating condition;
(6) according to the bearing test box provided by the invention, the requirements of tests such as lubrication pipelines, sensor wiring, adjustment and assembly and the like are met by respectively reserving the side windows at two sides of the box seat, simultaneously reserving the oil inlet pipe mounting hole and the sensor wiring hole on the side windows, and arranging the oil return hole for returning lubricating oil and the through hole for adjusting the screw at the bottom of the box seat.
Drawings
FIG. 1 is a schematic structural view of a test apparatus according to the present invention;
FIG. 2 is a schematic sectional view of the testing device according to the present invention;
FIG. 3 is a cross-sectional view of a spindle assembly of the testing apparatus of the present invention;
FIG. 4 is a schematic structural diagram of a tested piece device of the testing device of the present invention;
FIG. 5 is an exploded view of a device of a tested piece of the testing device of the present invention;
FIG. 6 is a cross-sectional view of a device under test of the testing device of the present invention;
FIG. 7 is a schematic structural diagram of a parallel misalignment simulation apparatus of the testing apparatus of the present invention;
FIG. 8 is an exploded view of a parallel misalignment simulation apparatus of the test apparatus of the present invention;
FIG. 9 is a simulation schematic diagram of a parallel misalignment simulation apparatus of the testing apparatus of the present invention;
FIG. 10 is a schematic structural view of an angle misalignment simulation apparatus of the testing apparatus according to the present invention;
FIG. 11 is an exploded view of an angle misalignment simulation apparatus according to the present invention;
FIG. 12 is a schematic diagram of an angle misalignment simulation apparatus of the test apparatus according to the present invention;
FIG. 13 is a schematic diagram of an angle misalignment simulation apparatus of the test apparatus of the present invention;
FIG. 14 is an assembly view of the adjusting device of the present invention with the housing;
FIG. 15 is a schematic structural view of a loading device of the testing apparatus of the present invention;
FIG. 16 is a schematic cross-sectional view of a loading device of the test apparatus of the present invention;
FIG. 17 is an exploded view of a radial loading unit of the test rig of the present invention;
FIG. 18 is an exploded view of the axial loading device of the test rig of the present invention;
FIG. 19 is a layout view of oil holes on a window of the case body according to the present invention;
FIG. 20 is a diagram of the sensor layout of the test apparatus of the present invention.
In the figure, a driving device 1, a main shaft supporting device 2, a tested bearing device 3, an assembly simulation device 4, a loading device 5, a bearing test box 6, a test system 7, an 8T-shaped table, a diaphragm coupling 11, a motor bracket 12 and a driving motor 13 are arranged; 21 a first support bearing, 22 a second support bearing, 23 a main shaft support sleeve, 24 a sealing lock nut, 25 a support bearing oil nozzle, 26 a main shaft sleeve, 27 a support bearing spacer, 28 a support bearing oil nozzle, 29 a second support bearing transparent cover, 210 a first support bearing transparent cover, 211 a sealing pressure plate, 212 a main shaft, 31 a tested bearing seat, 32 a tested bearing outer ring sleeve, 33 a first tested bearing transparent cover, 34 a tested bearing inner ring sleeve, 35 a tested bearing, 36 a second tested bearing end cover, 37 a fixing plate, 41 a top sizing block, 42 a wedge adjusting block, 43 a sizing block base, 44 an adjusting screw rod, 451 a connecting bolt, 452 a nut, 453 a spring, 46 a sizing block guide column, 47 an angle adjusting device, 471 an adjusting bolt, 472 a gasket, 473 an inner hexagonal cylinder head screw, 474 an angle adjusting screw, 474-1 a first angle adjusting screw, 474-2 a second angle adjusting screw, 51, a radial loading device, 52, an axial loading device, 511, a radial hydraulic cylinder, 512O-shaped rings, 513, a first hexagon nut, 514 s-column-shaped pressure sensors, 515, a second hexagon nut, 516, a foot pad, 521, an axial hydraulic cylinder, 522, an inner hexagon socket head cap screw, 523, a third hexagon nut, 524Y-shaped joints, 525 pins, 526 cotter pins, 527, spoke connecting lifting lugs, 528, a fourth hexagon nut and 529, a spoke pressure sensor; 61 a main shaft system protection box, 62 a box seat, 63 a tested device protection box, 64 an axial connection box, 65 a main shaft system observation window, 66 a radial loading device through hole, 67 an axial loading device through hole, 68 a sealing plug, 69 an oil discharging plug, 610 an oil pipe installation wire hole, 611 a lower side observation window, 612 an upper side observation window, 613 an oil seal, 614 a sealing plug cap, 71 a first acceleration sensor, 72 a second acceleration sensor, 73 a third acceleration sensor, 74 a thermocouple sensor and 75 an eddy current sensor.
Detailed Description
With reference to fig. 1 and 2, the rolling bearing test equipment with load and assembly double simulation mainly comprises a driving device 1, a main shaft supporting device 2, a tested bearing device 3, an assembly simulation device 4, a loading device 5, a bearing test box 6, a test system 7 and a T-shaped table 8.
Referring to fig. 2, the driving device 1 is used for providing driving force for a test bed, and mainly comprises a diaphragm coupling 11, a motor support 12 and a driving motor 13. One end of the diaphragm coupler 11 is connected with an output shaft of the driving motor 13, and the other end of the diaphragm coupler is connected with the main shaft 212 and used for transmitting the driving force between the driving motor 13 and the main shaft 212; the upper surface of the motor support 12 is fixedly connected with the ground feet of the driving motor 13 through bolts, and the lower surface of the motor support 12 is fixedly connected with the T-shaped table 8 through T-shaped bolts and used for supporting the driving motor 13; the driving motor 13 is driven by a variable frequency motor, so that the output rotating speed of the driving motor can be conveniently adjusted, and the rotating speed of the main shaft 212 can be controlled;
with reference to fig. 2 and 3, the spindle supporting device 2 is used for transmitting a driving force between the driving device 1 and the bearing device 3 to be tested and providing a supporting force for the bearing device 3 to be tested, and mainly comprises a supporting bearing 21, a supporting bearing 22, a spindle supporting sleeve 23, a sealing lock nut 24, a supporting bearing oil nozzle 25, a spindle sleeve 26, a supporting bearing spacer 27, a supporting bearing oil nozzle 28, a supporting bearing transparent cover 29, a supporting bearing transparent cover 210, a sealing pressure plate 211 and a spindle 212. The spindle support sleeve 23 is provided with flanges on two sides, the flanges are connected with the spindle system protective box 61 and the box base 62, a middle hole of the spindle support sleeve 23 is used for internally arranging the support bearing 21 and the support bearing 22, the spindle support sleeve 23 can replace the support bearing under the change as small as possible, and the integrated support sleeve is simple to process and convenient to disassemble and replace; the supporting bearing oil nozzle 25 is fixed on the oil inlet of the supporting bearing through cover 210, and the supporting bearing oil nozzle 28 is fixed on the oil inlet of the supporting bearing through cover 29 and is used for providing lubricating oil for the supporting bearings 21 and 22;
with reference to fig. 4, 5, and 6, the bearing device 3 to be tested is used for mounting a test piece and a test sensor, and mainly includes a bearing seat 31 to be tested, a bearing outer ring sleeve 32 to be tested, a bearing transparent cover 33 to be tested, a bearing inner ring sleeve 34 to be tested, a bearing 35 to be tested, a bearing end cover 36 to be tested, and a fixing plate 37. The anchor of the bearing seat 31 to be tested is connected with the iron pad 41 at the top, and a through hole is formed in the radial position of the bearing seat and used for placing a sensor; the right side of the bearing seat 31 to be tested is connected with a fixing plate 37, and the fixing plate 37 is connected and fixed with the bearing seat 31 to be tested through bolts and used for realizing the installation of the axial loading device 52 and the force sensor; the left side of the tested bearing seat 31 is fixedly connected with the tested bearing outer ring sleeve 32, the tested bearing outer ring sleeve 32 is fixedly matched with the tested bearing 35, the inner ring of the tested bearing 35 is fixedly matched with the tested bearing inner ring sleeve 34, the tested bearing inner ring sleeve 34 and the tested bearing outer ring sleeve 32 are fixedly matched, the tested pieces of different models can be replaced by replacing the tested bearing inner ring sleeve 34 and the tested bearing outer ring sleeve 32, the tested bearing device 3 does not need to be greatly changed, the tested pieces can be replaced, and the installation and the replacement are more convenient;
with reference to fig. 7, 8 and 9, the parallel misalignment simulation device is used for meeting the coaxiality requirement of the central axis of the tested bearing and the central axis of the spindle, and mainly comprises a top sizing block 41, a wedge-shaped adjusting block 42, a sizing block base 43, an adjusting screw 44, a connecting bolt 451, a nut 452, a spring 453 and a sizing block guide column 46. The upper surface of the top sizing block 41 is connected with the tested bearing seat 31, the lower surface of the top sizing block 41 is connected with a wedge-shaped adjusting block 42, and the wedge-shaped adjusting block 42 is reversely matched with threads on two sides of an adjusting screw 44 and used for adjusting the distance between the wedge-shaped adjusting blocks 42; the wedge-shaped adjusting block 42 is driven to move by rotating the adjusting screw 44, so that the tested bearing 35 vertically moves up and down, the coaxiality requirement of the central axis of the tested bearing 35 and the central axis of the main shaft 212 is met, the parallel misalignment simulation of the tested bearing 35 is realized, and the misalignment degree can be directly calculated by adjusting the screwing number of turns of the adjusting screw 44; in addition, by matching with the design of space position, sealing and the like of the box base 62 and the adjusting screw 44, the adjusting screw 44 can be adjusted outside the box body, and the parallel misalignment simulation of the tested bearing 35 can be adjusted without disassembling the box body;
the connecting bolt 451 is connected with the sizing block base 43 through a through hole of the top sizing block 41, and the spring 453 is sleeved on the connecting bolt 451, is in contact with the top sizing block 41, is fixed through a hexagonal nut 452 and is used for pre-compressing the top sizing block 41; four guide posts 46 are arranged between the sizing block base 43 and the top sizing block 41 and are uniformly distributed on two sides, so that the top sizing block 41 moves along the vertical direction and has a certain guiding function. The groove of the sizing block base 43 is designed to be rectangular, so that the wedge-shaped adjusting block 42 moves along the fixed track and has a certain guiding function.
Referring to fig. 10, 11, 12, 13 and 14, the angular misalignment error simulator is used to simulate 2-degree-of-freedom angular deflections and mainly comprises an angle adjusting device 47, an adjusting bolt 471, a spacer 472, a socket head cap screw 473 and angle adjusting screws 474(474-1, 474-2). The adjusting bolt 471 is fixedly connected with the top sizing block 41 through an inner hexagonal socket head cap screw 472, and the tested bearing device 3 is deflected through rotating the angle adjusting screw 474, so that the angle misalignment simulation of the tested bearing 35 is realized, and the deflection angle can be directly calculated through the number of turns of the adjusting angle adjusting screw 474 when being screwed.
Referring to fig. 12, when the angle adjusting screws 474-1 and 474-2 are rotated inward at the same time, the tested bearing device 3 can be angularly deflected around the Y-axis by an angle α, a direction β (clockwise), and the angle can be expressed as
Referring to FIG. 13, when the angle adjusting screw 474-1 is turned in the positive X-axis direction and the angle adjusting screw 474-2 is turned in the negative X-axis direction, the bearing device 3 can be deflected counterclockwise about the Z-axis by an angle θ, which can be expressed as
Similarly, if the adjustment screw 474-1 is rotated in the negative direction of the X-axis and the angle adjustment screw 474-2 is rotated in the positive direction of the X-axis, the bearing device 3 under test can be deflected clockwise about the Z-axis. In addition, by matching with the design of the box observation window 611 and the box observation window 612, the angle misalignment simulation of the tested bearing 35 can be adjusted without disassembling the box after the box and the tested piece are assembled;
referring to fig. 15, the loading device 5 is used for providing required radial load and axial load for the test equipment, and mainly comprises a radial loading device 51 and an axial loading device 52. Referring to fig. 16 and 17, the radial loading device 51 is used for providing a required radial load for the test apparatus, and mainly comprises a hydraulic cylinder 511, an O-ring 512, a hexagonal nut 513, an s-pillar pressure sensor 514, a hexagonal nut 515, and a foot 516. The radial loading device 51 is arranged at the through hole 66 of the radial loading device and is fixedly connected with the protection box 63 of the tested device through a bolt, the radial loading can be realized by controlling the radial hydraulic cylinder 511, and the radial loading is more conveniently and accurately realized by combining with the S-column type pressure sensor 514. The O-shaped ring 512 is matched with the hydraulic cylinder 511 to realize a sealing function; the S-pillar pressure sensor 514 is connected at its upper portion to the cylinder 511 and fixed by a hexagonal nut 513 and at its lower portion to a shoe 516 and fixed by a hexagonal nut 515 for testing the magnitude of the applied radial load. When the testing device needs to apply radial load, the hydraulic cylinder 511 drives the s-column type pressure sensor 514 and the cushion 516 to press the tested bearing seat 31, so as to generate vertical radial load. During loading, the assembly simulation module needs to be cancelled. Firstly, a bearing seat fixing bolt needs to be loosened; then the adjusting screw 44 is rotated to make the tested bearing device 3 fall to the lowest end, and a displacement allowance is reserved for radial loading.
Referring to fig. 18, the axial loading device 52 is used for providing a required axial load for the test device, and mainly comprises an axial hydraulic cylinder 521, an inner hexagonal socket head screw 522, a third hexagonal nut 523, a Y-shaped joint 524, a pin 525, a cotter pin 526, a spoke connecting lug 527, a hexagonal nut 528, and a spoke pressure sensor 529. The axial loading device 52 is arranged at the through hole 67 of the axial loading device and is fixedly connected with the axial connecting box 64 through bolts, radial load loading can be realized through controlling the axial hydraulic cylinder 521, and the axial loading device is combined with the spoke pressure sensor 529, so that the axial load loading is realized more conveniently and accurately. The axial hydraulic cylinder 521 is fixedly connected with the axial connecting box 64 through an inner hexagonal socket head cap screw 522, the bottom of the axial hydraulic cylinder 521 is connected with a Y-shaped joint 524 and is fixed through a third hexagonal nut 523; the left side of the spoke connecting lifting lug 527 is connected with a spoke pressure sensor 529 and is fixed through a hexagon nut 528, and the right side of the spoke connecting lifting lug 527 is matched with a Y-shaped joint 524 and is fixed through a pin 525; the cotter pin 526 is inserted into the hole of the dowel 525 for anti-loosening. The spoke pressure sensor 529 is coupled to the fixing plate 37 by a screw. When the test device needs to apply an axial load, the axial hydraulic cylinder 521 drives the spoke pressure sensor 529 to transmit the axial load to the fixing plate 37 and the bearing seat 31 to be tested, the applied axial load is tested through the spoke pressure sensor 529, and the axial load is loaded more conveniently and accurately. During loading, the assembly simulation module needs to be cancelled.
With reference to fig. 1, 14 and 19, the bearing test box 6 is used for mounting various system components and mainly comprises a main shaft system protection box 61, a box base 62, a tested device protection box 63, an axial connection box 64, a main shaft system observation window 65, a radial loading device through hole 66, an axial loading device through hole 67, a plugging plug 68, an oil discharging plug 69, an oil pipe mounting wiring hole 610, a lower side observation window 611, an upper side observation window 612, an oil seal 613 and a plugging plug cap 614; a main shaft system observation window 65 is arranged at the top of the main shaft system protection box 61, so that the running state of the main shaft system can be observed conveniently; the spindle system protective box 61 and the tested device protective box 63 are detachable, so that the tested piece can be conveniently dismounted and mounted, a sensor can be conveniently mounted and the like; the tested device protection box 63 is fixedly connected with the box base 62 through bolts and used for fixing the bearing radial loading device 51; the axial connecting box 64 is fixedly connected with the tested device protecting box 63 and the box base 62 through bolts and is used for fixing the bearing axial loading device 52; a sealing plug 68 is arranged at the joint of the axial connecting box 64 and the adjusting screw 44, and an oil seal 613 is arranged at the joint of the sealing plug 68 and the adjusting screw 44 to prevent the loss of lubricating oil; two side surfaces of the box base 62 and the tested device protection box 63 are respectively provided with an observation window 611 and an observation window 612, the observation windows 611 and the observation windows 612 are provided with an oil pipe installation wiring hole 610, and the oil pipe installation wiring hole 610 is used for tests such as oil inlet pipe installation, sensor wiring, adjustment and assembly and the like; the bottom of the box base 62 is provided with an oil return hole for returning lubricating oil, and the oil return hole is provided with an oil discharging plug 69 for cooling and lubricating the main shaft supporting bearings 21 and 22 and the tested bearing 35, so that the running stability and the service life of the bearings are improved, and the like. The bottom of the box seat 62 is fixed on the T-shaped table 8 through a T-shaped bolt, and the box seat 62 is internally divided into a box body supporting part and a tested part, so that two working areas are sufficiently isolated, and the mutual pollution of the working environment is prevented;
with reference to fig. 20, the test system 7 is configured to mount an acceleration sensor, a thermocouple sensor and an eddy current sensor on the bearing device 3 to be tested, so that the test equipment can be used for the vibration response characteristic test research of the outer ring and the retainer under the variable working conditions (rotating speed and load) of the bearing under the rotation condition; the device mainly comprises an acceleration sensor 71, an acceleration sensor 72, an acceleration sensor 73, a thermocouple sensor 74 and an eddy current sensor 75. The acceleration sensor 71 is mounted in the vertical direction of the bearing seat 31 to be tested and used for measuring the vibration characteristic of the shell of the bearing seat 31 to be tested; the acceleration sensor 72 is arranged in a measuring hole of the tested bearing seat 31 and is used for measuring the vibration characteristic of the tested bearing outer ring sleeve 32; the acceleration sensor 73 is arranged in a measuring hole of the tested bearing outer ring sleeve 32 and used for measuring the vibration characteristic of the outer ring of the tested bearing 35; the thermocouple sensor 74 is arranged in a measuring hole of the sleeve 32 of the outer ring of the tested bearing and is used for measuring the temperature characteristic of the outer ring of the tested bearing 35; the eddy current sensor 75 is arranged in the measuring hole of the tested bearing transparent cover 33, and the measuring end of the eddy current sensor is opposite to the end face of the retainer and used for measuring the vibration characteristic of the retainer of the tested bearing 35.
While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (1)
1. A rolling bearing test device with load and assembly double simulation is characterized by mainly comprising a driving device (1), a main shaft supporting device (2), a tested bearing device (3), an assembly simulation device (4), a loading device (5), a bearing test box (6), a test system (7) and a T-shaped table (8);
the driving device (1) provides driving force for the rolling bearing test equipment and mainly comprises a diaphragm coupling (11), a motor support (12) and a driving motor (13); one end of the diaphragm coupling (11) is connected with an output shaft of the driving motor (13), and the other end of the diaphragm coupling is connected with the main shaft (212) and used for transmitting the driving force between the driving motor (13) and the main shaft (212); the upper surface of the motor support (12) is fixedly connected with the ground feet of the driving motor (13) through bolts, and the lower surface of the motor support (12) is fixedly connected with the T-shaped table (8) through T-shaped bolts and used for supporting the driving motor (13); the driving motor (13) is driven by a variable frequency motor, so that the output rotating speed of the driving motor (13) is conveniently adjusted, and the rotating speed of the main shaft (212) is controlled;
the main shaft supporting device (2) is used for transmitting driving force between the driving device (1) and a tested bearing device (3) and providing supporting force for the tested bearing device (3), and mainly comprises a first supporting bearing (21), a second supporting bearing (22), a main shaft supporting sleeve (23), a sealing locking nut (24), a first supporting bearing oil nozzle (25), a main shaft sleeve (26), a supporting bearing spacer bush (27), a second supporting bearing oil nozzle (28), a second supporting bearing transparent cover (29), a first supporting bearing transparent cover (210), a sealing pressure plate (211) and a main shaft (212); flanges are arranged on two sides of the main shaft support sleeve (23), the flanges are connected with a main shaft system protective box (61) and a box base (62), a first support bearing (21) and a second support bearing (22) are arranged in a middle hole of the main shaft support sleeve (23) and are respectively positioned at two ends of the main shaft support sleeve (23); the first supporting bearing transparent cover (210) and the second supporting bearing transparent cover (29) are correspondingly installed outside the first supporting bearing (21) and the second supporting bearing (22), the first supporting bearing oil nozzle (25) is fixed on an oil inlet hole of the first supporting bearing transparent cover (210), and the second supporting bearing oil nozzle (28) is fixed on an oil inlet hole of the second supporting bearing transparent cover (29) and used for providing lubricating oil for the first supporting bearing (21) and the second supporting bearing (22); the main shaft (212) is positioned in the main shaft support sleeve (23), and a main shaft sleeve (26) is sleeved on the main shaft part in the main shaft support sleeve (23); the sealing pressure plate (211) is positioned on the outer side of the first supporting bearing transparent cover (210), is matched with the first supporting bearing transparent cover (210) and is used for sealing the main shaft supporting device (2); the left end of the sealing pressure plate (211) is in contact with a sealing lock nut (24), the right end of the sealing pressure plate is in contact with the inner ring of the first support bearing (21), and the sealing lock nut (24) is matched with the main shaft (212) and used for adjusting the axial position of the sealing pressure plate (211); the sealing pressure plate (211) is used for transmitting the axial force between the sealing lock nut (24) and the inner ring of the first supporting bearing (21) so as to axially position the inner ring of the first supporting bearing (21); the supporting bearing spacer bush (27) is positioned between the two bearings of the second supporting bearing (22), and the left end and the right end of the supporting bearing spacer bush are respectively contacted with the inner ring and the outer ring of the two supporting bearings to prevent the two supporting bearings from being directly contacted;
the device (3) for the bearing to be tested is used for mounting a tested piece and a sensor and mainly comprises a tested bearing seat (31), a tested bearing outer ring sleeve (32), a first tested bearing transparent cover (33), a tested bearing inner ring sleeve (34), a tested bearing (35), a second tested bearing end cover (36) and a fixing plate (37); the anchor of the bearing seat (31) to be tested is connected with the sizing block (41) at the top, and a through hole is formed in the radial position of the bearing seat (31) to be tested and used for placing a sensor; one side surface of the tested bearing seat (31) is connected with the fixing plate (37) through a bolt and is used for realizing the installation of the axial loading device (52) and the force sensor; the other side surface of the tested bearing seat (31) is connected with a tested bearing outer ring sleeve (32), the tested bearing outer ring sleeve (32) is matched and fixed with a tested bearing (35), an inner ring of the tested bearing (35) is matched and fixed with an outer ring of a tested bearing inner ring sleeve (34), and the tested bearing (35) is fixed through a second tested bearing end cover (36); the first tested bearing transparent cover (33) is fixedly arranged on the outer side of the tested bearing outer ring sleeve (32); the tested piece with different models is replaced by replacing the tested bearing inner ring sleeve (34) and the tested bearing outer ring sleeve (32);
the assembly simulation device (4) comprises a parallel misalignment simulation device and an angle misalignment error simulation device;
the parallel misalignment simulation device is used for meeting the coaxiality requirement of the central axis of a tested bearing (35) and the central axis of a main shaft (212), and mainly comprises a top sizing block (41), a wedge-shaped adjusting block (42), a sizing block base (43), an adjusting screw rod (44), a connecting bolt (451), a nut (452), a spring (453) and a sizing block guide column (46); the upper surface of the top sizing block (41) is connected with the tested bearing seat (31), and the lower surface of the top sizing block (41) is matched with the contact surface of the wedge-shaped adjusting block (42) and is connected with the two wedge-shaped adjusting blocks (42); the two wedge-shaped adjusting blocks (42) are respectively and reversely matched with threads on two sides of the adjusting screw rod (44) and used for adjusting the distance between the two wedge-shaped adjusting blocks (42); the adjusting screw rod (44) is rotated to drive the wedge-shaped adjusting block (42) to move, so that the tested bearing (35) can vertically move, the coaxiality requirement of the central axis of the tested bearing (35) and the central axis of the main shaft (212) is met, the parallel misalignment simulation of the tested bearing (35) is realized, and the misalignment degree is directly calculated by adjusting the number of screwing turns of the screw rod (44); in addition, the adjusting lead screw (44) is matched with the box seat (62) and the adjusting lead screw (44) for space position and sealing at the same time, the adjusting lead screw (44) is adjusted outside the box body, and the parallel misalignment simulation of the tested bearing (35) can be adjusted without disassembling the box body; the connecting bolt (451) is connected with the sizing block base (43) through a through hole of the top sizing block (41), and the spring (453) is sleeved on the connecting bolt (451) to be in contact with the upper surface of the top sizing block (41), is fixed through the hexagon nut (452), and is used for pre-pressing the top sizing block (41); four sizing block guide columns (46) are arranged between the sizing block base (43) and the top sizing block (41) and are uniformly distributed on two sides, so that the top sizing block (41) moves along the vertical direction and has a certain guide effect; the sizing block base (43) is of a boss structure, a rectangular groove is formed in the boss, and the wedge-shaped adjusting block (42) moves along a fixed track formed by the rectangular groove and has a certain guiding function; one side of the sizing block base (43) protrudes, and a through hole for inserting the adjusting screw rod (44) is formed in the sizing block base;
the angle misalignment error simulation device is used for simulating 2-degree-of-freedom angle deflection and mainly comprises an angle adjusting device (47), an adjusting bolt (471), a gasket (472), a socket head cap screw (473) and an angle adjusting screw (474); the two angle adjusting devices (47) are symmetrically arranged on the upper surface of the top sizing block (41); the adjusting bolt (471) is matched with the top sizing block (41) through a gasket (472) and a hexagon socket head cap screw (473) to be connected, the angle adjusting screw (474) is installed on the side surface of the angle adjusting device (47), the output end of the angle adjusting screw is propped against the tested bearing device (3), the tested bearing device (3) deflects by rotating the angle adjusting screw (474), so that the angle misalignment simulation of the tested bearing (35) is realized, and the deflection angle is directly calculated through the number of turns of the angle adjusting screw (474) in a screwing mode; in addition, the angle adjusting screw (474) is matched with the lower side observation window (611) and the upper side observation window (612) simultaneously, so that the angle misalignment simulation of the tested bearing (35) can be adjusted without disassembling the box body after the box body and the tested piece are assembled;
the loading device (5) is used for providing required radial load and axial load for the test equipment and mainly comprises a radial loading device (51) and an axial loading device (52); the radial loading device (51) is used for providing required radial load for the test device and mainly comprises a hydraulic cylinder (511), an O-shaped ring (512), a first hexagonal nut (513), an S-shaped column pressure sensor (514), a second hexagonal nut (515) and a pad (516), the radial loading device (51) is installed at a through hole (66) of the radial loading device and is fixedly connected with a protection box (63) of the tested device through a bolt, radial load loading is realized by controlling the radial hydraulic cylinder (511), and the radial loading device is combined with the S-shaped column pressure sensor (514), so that the loading of the radial load is realized more conveniently and accurately; the O-shaped ring (512) is matched with the hydraulic cylinder (511) to realize the sealing function; the upper part of the S-shaped column type pressure sensor (514) is connected with the hydraulic cylinder (511) and fixed through a first hexagonal nut (513), and the lower part of the S-shaped column type pressure sensor is connected with the pad (516) and fixed through a second hexagonal nut (515) and used for testing the magnitude of the applied radial load; when the test device needs to apply radial load, the hydraulic cylinder (511) drives the S-column type pressure sensor (514) and the pad foot (516) to press the tested bearing seat (31) to generate vertical radial load; during loading, the assembly simulation module needs to be cancelled; firstly, a bearing seat fixing bolt needs to be loosened; then, the adjusting screw rod (44) is rotated to enable the tested bearing device (3) to fall to the lowest end, and a displacement allowance is reserved for radial loading;
the axial loading device (52) is used for providing a required axial load for the test device and mainly comprises an axial hydraulic cylinder (521), an inner hexagonal socket head cap screw (522), a hexagonal nut (523), a Y-shaped joint (524), a pin (525), a cotter pin (526), a spoke connecting lifting lug (527), a fourth hexagonal nut (528) and a spoke pressure sensor (529); the axial loading device (52) is arranged at a through hole (67) of the axial loading device and is fixedly connected with the axial connecting box (64) through bolts, radial load loading is realized by controlling the axial hydraulic cylinder (521), and the axial loading is realized by combining with the spoke pressure sensor (529); the axial hydraulic cylinder (521) is connected with the axial connecting box (64) through an inner hexagonal socket head cap screw (522), the bottom of the axial hydraulic cylinder (521) is connected with the Y-shaped joint (524) and fixed through a hexagonal nut (523); one end of a spoke connecting lifting lug (527) is connected with a spoke pressure sensor (529) and fixed through a fourth hexagon nut (528), and the other end of the spoke connecting lifting lug (527) is matched with a Y-shaped joint (524) and fixed through a pin (525); a cotter pin (526) is inserted into the hole of the pin (525) for preventing looseness; the spoke pressure sensor (529) is connected with the fixing plate (37) through a screw; when the test device needs to apply an axial load, the axial hydraulic cylinder (521) drives the spoke pressure sensor (529) to transmit the axial load to the fixing plate (37) and the tested bearing seat (31), and the spoke pressure sensor (529) is used for testing the magnitude of the applied axial load to realize the loading of the axial load; during loading, the assembly simulation module needs to be cancelled;
the bearing test box (6) is used for mounting various system components and mainly comprises a main shaft system protection box (61), a box seat (62), a tested device protection box (63), an axial connecting box (64), a main shaft system observation window (65), a radial loading device through hole (66), an axial loading device through hole (67), a plugging plug (68), an oil discharging plug (69), an oil pipe mounting wiring hole (610), a lower side observation window (611), an upper side observation window (612), an oil seal (613) and a plugging plug cap (614); a main shaft system observation window (65) is arranged at the top of the main shaft system protection box (61) and is convenient for observing the running state of the main shaft system; the spindle system protective box (61) and the tested device protective box (63) are detachable, so that a tested piece can be conveniently dismounted and mounted, and a sensor can be conveniently mounted; the tested device protection box (63) is fixedly connected with the box base (62) through bolts and used for fixing the bearing radial loading device (51); the axial connecting box (64) is fixedly connected with a tested device protection box (63) and a box seat (62) through bolts and is used for fixing the bearing axial loading device (52); a sealing plug (68) is arranged at the joint of the axial connecting box (64) and the adjusting screw rod (44), and an oil seal (613) is arranged at the joint of the sealing plug (68) and the adjusting screw rod (44) to prevent the loss of lubricating oil; two side surfaces of the box seat (62) and the tested device protection box (63) are respectively provided with a lower side observation window (611) and an upper side observation window (612), the lower side observation window (611) and the upper side observation window (612) are provided with an oil pipe installation wiring hole (610), and the oil pipe installation wiring hole (610) is used for oil inlet pipe installation, sensor wiring and adjustment assembly; an oil return hole for returning lubricating oil is formed in the bottom of the box seat (62), an oil unloading plug (69) is arranged on the oil return hole, cooling and lubrication are provided for the first supporting bearing (21), the second supporting bearing (22) and the tested bearing (35), and the running stability and the service life of the tested bearing (35) are improved; the bottom of the box seat (62) is fixed on the T-shaped table (8) through a T-shaped bolt, and the box seat (62) is internally divided into a box body supporting part and a tested part, so that two working areas are sufficiently isolated, and the mutual pollution of the working environment is prevented;
the test system (7) is characterized in that an acceleration sensor, a thermocouple sensor and an eddy current sensor are arranged on the tested bearing device (3), so that the rolling bearing test equipment is used for the test research of the vibration response characteristics of the outer ring and the retainer under the variable working conditions of the bearing rotation; the test system (7) mainly comprises a first acceleration sensor (71), a second acceleration sensor (72), a third acceleration sensor (73), a thermocouple sensor (74) and an eddy current sensor (75); the first acceleration sensor (71) is arranged in the vertical direction of the bearing seat (31) to be tested and used for measuring the vibration characteristic of the shell of the bearing seat (31) to be tested; the second acceleration sensor (72) is arranged in a measuring hole of the tested bearing seat (31) and used for measuring the vibration characteristic of the outer ring sleeve (32) of the tested bearing; the third acceleration sensor (73) is arranged in a measuring hole of the outer ring sleeve (32) of the tested bearing and is used for measuring the vibration characteristic of the outer ring of the tested bearing (35); the thermocouple sensor (74) is arranged in a measuring hole of the outer ring sleeve (32) of the tested bearing and is used for measuring the temperature characteristic of the outer ring of the tested bearing (35); the eddy current sensor (75) is arranged in a measuring hole of the first tested bearing transparent cover (33), and the measuring end of the eddy current sensor is opposite to the end face of the retainer and used for measuring the vibration characteristic of the retainer of the tested bearing (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210331260.1A CN114646466B (en) | 2022-03-31 | 2022-03-31 | Rolling bearing test equipment with load and assembly double simulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210331260.1A CN114646466B (en) | 2022-03-31 | 2022-03-31 | Rolling bearing test equipment with load and assembly double simulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114646466A true CN114646466A (en) | 2022-06-21 |
| CN114646466B CN114646466B (en) | 2023-06-20 |
Family
ID=81995382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210331260.1A Active CN114646466B (en) | 2022-03-31 | 2022-03-31 | Rolling bearing test equipment with load and assembly double simulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114646466B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338626A (en) * | 2022-08-16 | 2022-11-15 | 河海大学 | Mounting structure convenient to adjust water pump rotor axial position |
| CN117109913A (en) * | 2023-07-12 | 2023-11-24 | 大连工业大学 | Variable contact angle ball bearing steel ball and retainer circumferential impact test device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003048741A1 (en) * | 2001-12-04 | 2003-06-12 | Politecnico Di Milano | Torsion, compression, tensile test machine with tubular body |
| CN105823635A (en) * | 2016-05-17 | 2016-08-03 | 慈兴集团有限公司 | Bearing rotation torque test device |
| CN206710074U (en) * | 2017-03-20 | 2017-12-05 | 吉林大学 | A kind of electro spindle reliability test of multiple physical field Combined Loading |
| CN111982511A (en) * | 2020-08-07 | 2020-11-24 | 武汉理工大学 | Fault simulation test bed for ship electric propulsion system |
| CN112393905A (en) * | 2020-12-14 | 2021-02-23 | 大连工业大学 | Rolling bearing tester with external impact excitation |
| CN113063592A (en) * | 2021-05-18 | 2021-07-02 | 吉林大学 | Bearing set system reliability test bed |
| CN114235318A (en) * | 2021-12-09 | 2022-03-25 | 湖南崇德科技股份有限公司 | Multifunctional vibration test bench |
-
2022
- 2022-03-31 CN CN202210331260.1A patent/CN114646466B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003048741A1 (en) * | 2001-12-04 | 2003-06-12 | Politecnico Di Milano | Torsion, compression, tensile test machine with tubular body |
| CN105823635A (en) * | 2016-05-17 | 2016-08-03 | 慈兴集团有限公司 | Bearing rotation torque test device |
| CN206710074U (en) * | 2017-03-20 | 2017-12-05 | 吉林大学 | A kind of electro spindle reliability test of multiple physical field Combined Loading |
| CN111982511A (en) * | 2020-08-07 | 2020-11-24 | 武汉理工大学 | Fault simulation test bed for ship electric propulsion system |
| CN112393905A (en) * | 2020-12-14 | 2021-02-23 | 大连工业大学 | Rolling bearing tester with external impact excitation |
| CN113063592A (en) * | 2021-05-18 | 2021-07-02 | 吉林大学 | Bearing set system reliability test bed |
| CN114235318A (en) * | 2021-12-09 | 2022-03-25 | 湖南崇德科技股份有限公司 | Multifunctional vibration test bench |
Non-Patent Citations (1)
| Title |
|---|
| 叶振环: "航空发动机高速滚动轴承动力学行为研究", 《中国博士学位论文全文数据库 工程科技Ⅱ辑》, no. 01, pages 031 - 5 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338626A (en) * | 2022-08-16 | 2022-11-15 | 河海大学 | Mounting structure convenient to adjust water pump rotor axial position |
| CN115338626B (en) * | 2022-08-16 | 2023-05-23 | 河海大学 | Mounting structure convenient to adjust water pump rotor axial position |
| CN117109913A (en) * | 2023-07-12 | 2023-11-24 | 大连工业大学 | Variable contact angle ball bearing steel ball and retainer circumferential impact test device |
| CN117109913B (en) * | 2023-07-12 | 2024-04-02 | 大连工业大学 | Variable contact angle ball bearing steel ball and retainer circumferential impact test device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114646466B (en) | 2023-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114646466A (en) | Rolling bearing test equipment with load and assembly double simulation | |
| CN107314893B (en) | Modularized multifunctional rotor experiment table | |
| CN102426097B (en) | Dynamic loading device for high-speed motorized spindle | |
| CN109632161B (en) | Rolling bearing friction torque testing machine | |
| US3827289A (en) | Vehicle test fixture | |
| CN106769042B (en) | Cylindrical roller bearing dual-rotor testing machine | |
| CN107560855A (en) | A kind of filmatic bearing dynamic and static state performance experimental rig | |
| CN202188954U (en) | High-speed electric spindle dynamic loading device | |
| CN103344553B (en) | High-speed rolling contact fatigue testing machine | |
| CN105784367A (en) | Rail vehicle axle box bearing comprehensive performance and shaft end grounding device wear test bench | |
| CN111811817B (en) | High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform | |
| CN112161803A (en) | Rolling bearing life-span energy consumption testing machine under combined load | |
| CN106595462A (en) | Axial plunger pump flow distribution pair test oil membrane thickness test system | |
| CN102507336A (en) | Rotatable power and liquid supply ground triaxial testing machine | |
| CN114235400B (en) | Wind-powered electricity generation slide bearing capability test device | |
| CN114152734B (en) | On-line testing device for lubricating characteristic of flow distribution pair of hydraulic pump | |
| CN113063592B (en) | Bearing set system reliability test bed | |
| CN112147068B (en) | High-speed high-temperature friction wear test bed adopting symmetric loading | |
| CN109357870B (en) | Radial air bearing performance test machine | |
| CN219977767U (en) | Spliced railway bearing fault diagnosis test bed | |
| CN110567718B (en) | Rolling bearing radial dynamic stiffness testing device based on piezoelectric actuator | |
| CN204495560U (en) | A kind of rolling bearing combined fault simulated experiment platform | |
| CN107843432B (en) | Dynamic stiffness measuring device for bearing | |
| CN114001957B (en) | Vertical bearing testing machine | |
| CN113029568A (en) | Bearing life testing system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |