CN110243602A - Oscillating bearing cold scuffing pilot system and its assemble method - Google Patents
Oscillating bearing cold scuffing pilot system and its assemble method Download PDFInfo
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- CN110243602A CN110243602A CN201910652974.0A CN201910652974A CN110243602A CN 110243602 A CN110243602 A CN 110243602A CN 201910652974 A CN201910652974 A CN 201910652974A CN 110243602 A CN110243602 A CN 110243602A
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- bearing
- oscillating bearing
- mandrel
- tested
- subsystem
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Classifications
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- 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
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
The invention proposes a kind of oscillating bearing cold scuffing pilot systems comprising pedestal, sweat box, radial stress subsystem, power sub-system, temperature control subsystem, wear measurement subsystem and Clamp Subsystem.Clamp Subsystem includes jacking block, load plate, accompanies examination bearing block, mandrel, accompanies examination bearing, end cap and locking member, above-mentioned component is all independent removable sections, the clamping that different-diameter oscillating bearing life test can be realized by replacement mandrel, jacking block or load plate, improves the utilization rate and versatility of test fixture；In addition, Clamp Subsystem of the invention, using load plate inner hole increase unilateral rib, reduce jacking block thickness, rib cooperate with end cap it is fixed accompany the structures design such as examination bearing to improve, effectively prevent extremely incident mandrel deformation during oscillating bearing wear test or be broken.
Description
Technical field
The invention belongs to reliability of mechanical equipment identification technology fields；It is tested more particularly to a kind of oscillating bearing cold scuffing
System and its assemble method.
Background technique
Oscillating bearing cold scuffing test is to close for assessing the abrasion resistance index of oscillating bearing at low ambient temperatures
The important evidence of design Yu the research and development, customization and type selecting of bearings type product judges criterion.Cold scuffing qualification test process
In, temperature, load, the control for moving back and forth state are required to real-time control, and the entire test process operation period is longer, therefore needs
The higher pilot system of the degree of automation is wanted, to realize that external environment condition, load-up condition, operating condition can meet mirror in real time
Determine the requirement of test program, and abrasion loss and subject bearing temperature can be monitored in real time, reduces human factor to the shadow of test result
It rings, the accuracy of guarantee test result judgement.
But there are following problems for existing system: (1) existing life test clamp structure cannot be guaranteed the rigidity of mandrel,
Mandrel is easy that brittle failure occurs under the big moment of flexure that big Radial Loads generate, with the wide serial self-lubricating joint of aviation low-speed heave-load
For bearing, the radial load of life test is 1.3-1.5 times of same inner diameter other types oscillating bearing, and mandrel is easier to send out
Raw brittle failure；(2) existing life test fixture designs poor universality, when completing the life test of different model oscillating bearing, needs
The fixture for wanting plurality of specifications causes the significant wastage of fund, time and resource；(3) test fixture is heavy, and temperature box space
Relatively narrow, the installation for being not easy to subject product and test fixture is fixed, and installation process is relatively cumbersome laborious, substantially extends test
Time.
Summary of the invention
It is dismounted the technical problem to be solved in the present invention is to provide a kind of versatile, reliable performance, convenient for testpieces, can oneself
The oscillating bearing cold scuffing pilot system and its assemble method of dynamic control and signal acquisition.
In order to solve the above technical problems, the invention proposes a kind of oscillating bearing cold scuffing pilot system, the system
Including pedestal, sweat box, the radial stress subsystem for generating bearing radial load to be tested, generate roll bearing swing torque to be tested
Power sub-system, control test environment temperature temperature control subsystem, monitoring bearing radial wear to be tested abrasion
It measures subsystem and the Clamp Subsystem of oscillating bearing to be tested is fixedly mounted；The Clamp Subsystem of the system includes two pieces of tops
Block, load plate, two accompany examination bearing block, mandrel, two accompany examination bearing, end cap and locking member；
The first end of the load plate is connect with the stress subsystem, and the second end of the load plate and the subject are closed
The outer ring clearance fit of bearings, the radial stress for generating the stress subsystem are applied to the outer of subject oscillating bearing
Circle, and the second end of the load plate is equipped with the rib that oscillating bearing outer ring side can be tested described in axial restraint；
Two pieces of jacking blocks are respectively equipped with centre bore, the centre bore inner ring and the mandrel clearance fit, and described two pieces
Jacking block is located at the subject oscillating bearing left and right side；
The mandrel passes through the subject oscillating bearing inner ring and two pieces of jacking blocks, the mandrel and the subject joint
Bearing inner race clearance fit, the second end of the mandrel is connect with power sub-system to be connected；
The locking member is used to clamp the inner ring of subject oscillating bearing by two pieces of jacking blocks from left side and from right side；
It is described two that examination bearing block is accompanied axially and symmetrically to be mounted on the base, it is described that examination bearing block is accompanied to be equipped with for installing
The inner hole for accompanying examination bearing, the inner ring of the inner hole and the outer ring clearance fit for accompanying examination bearing, the inner hole towards to
First face of test bearing is equipped with rib, and second face opposite with bearing to be tested is blocked by end cap, the rib and institute
End cap is stated for accompanying examination bearing to carry out axial restraint to described；
It is described two to accompany examination bearing inner race and described two jacking block clearance fits, for being provided for the subject oscillating bearing
Support.
Preferably, the Clamp Subsystem further includes bushing, the bushing be cylindrical, hollow pipe, the bushing inner ring with
The mandrel outer surface clearance fit is adapted to the oscillating bearing of different in width series by replacing the bushing of corresponding length
Complete qualification test.
Preferably, the second end of the mandrel has special-shaped groove, and special-shaped groove side is equipped with transmits with the power sub-system
The axis of the special-shaped through-hole that the axis of torque matches, the mandrel and power sub-system transmitting torque by the special-shaped groove and
Special-shaped through-hole is attached.
Preferably, the pedestal is equipped with sliding slot, described that examination bearing block is accompanied to be fixedly installed on the sliding slot, and two
It is described to accompany examination bearing block that adjust its relative distance along the chute.
Preferably, described two to accompany examination bearing for double-row self-aligning roller bearing；It is described to accompany examination bearing convenient for aligning, it can contract
Short test time, and mount stress when installation can be reduced, improve test accuracy.
Preferably, the power sub-system includes motor, motor cabinet, lead screw and handwheel；The motor is fixed on the electricity
On base, the lead screw and handwheel are connect with the motor cabinet, and driving motor seat is displaced along the axial direction of the mandrel, and
The fixed mechanical lock in position is carried out equipped with to the motor cabinet on the handwheel.
Preferably, the power sub-system further includes shaft coupling.
Preferably, the power sub-system further includes wearing case axis, it is described wear case axis by the lateral aperture of the sweat box with
The axle center connection, described wear has seal member between case axis outer ring and the lateral aperture of the sweat box, described to wear case axis outer ring
It is loose fit with the seal member.
Preferably, the present invention also provides a kind of assemble methods of oscillating bearing cold scuffing pilot system comprising following
Step:
The power sub-system is placed suitable distance by step 1, by the axis of power sub-system transmitting torque from the temperature
It is passed through in case lateral aperture；
Step 2, composition accompany examination bearing assembly: accompanying examination bearing to be packed into described two to accompany examination bearing block by described two respectively
Inner hole, and examination bearing is accompanied described in end cap locking；
Step 3, assembling test bearing component: described two jacking blocks, subject oscillating bearing and load plate are passed through into the core
Axis, then with the locking device by described two jacking blocks and subject oscillating bearing locking, by the electricity of the mandrel and the motor
Arbor connection；
The distance between examination bearing block position is accompanied described in step 4, adjustment, by described two tops of the test bearing component
Block is each passed through the centre bore for accompanying examination bearing, the load plate is fixedly connected with the stress subsystem, then accompany examination for described
Bearing block is fixedly mounted on the base；
Step 5 checks that entire shafting ensures to neutrality, then gently rotates the inner ring of subject oscillating bearing, it is ensured that subject
Oscillating bearing is not by lateral force；
Step 6 checks that the temperature control subsystem, wear measurement subsystem work normally；
Step 7, the starting sweat box adjust the environment temperature in the sweat box and reach rule in verification test outline
After definite value, the stress subsystem is controlled by the load plate, the verification test outline is applied to the subject oscillating bearing
Specified in load value, control the power sub-system according in the verification test outline parameter request carry out periodically it is past
Physical pendulum is dynamic, until reaching defined test number (TN).
Preferably, the method also includes the step 8 for disassembly, the step 8 specifically includes the following steps:
After step 81, low speed abrasion qualification test, the radial force of the subject oscillating bearing is unloaded, the temperature is adjusted
After spending the environment temperature recovery room temperature in case, the sweat box is opened；
Step 82, the connection for disconnecting the mandrel with the motor shaft of the motor；
Step 83 accompanies examination bearing block to remove from the pedestal for described, first take out left side it is described accompany examination bearing assembly after,
The test bearing component is taken out again；
Step 84, unscrewing locking member, successively remove the left side jacking block, the load plate, the quilt from mandrel 13
Oscillating bearing and the right side jacking block are tried, disassembly is completed.
Compare existing technology, this programme have it is following the utility model has the advantages that
(1) fixture is easy to assemble, versatile.Jacking block, load plate, bushing in this programme are all individual components, disassembly side
Just, the clamping that different in width series oscillating bearing life test can be realized by more resleeve, by replacement mandrel, jacking block,
Load plate can realize that the clamping of different-diameter oscillating bearing life test, test fixture utilization rate high universalizable are good；(2) structure by
Power is reasonable, increases unilateral rib, the taper for reducing jacking block, rib using load plate inner hole and cooperates with fixed accompany to try bearing etc. with end cap
Structure design improves, and effectively prevents extremely incident mandrel deformation or fracture during the test of high-speed overload self-lubricating bearing.
Detailed description of the invention
Fig. 1 is oscillating bearing cold scuffing test system architecture schematic diagram；And
Fig. 2 is oscillating bearing cold scuffing pilot system control circuit schematic diagram.
Specific embodiment
The embodiment of the invention discloses a kind of oscillating bearing cold scuffing experimental rig as shown in Figure 1, which includes:
Lead screw 1, motor 2, motor shaft 3, rubber sleeve 4, jacking block 51, jacking block 52, electro-hydraulic oil cylinder 6, displacement sensor 7, rack 8, load plate
9, bearing block 101, bearing block 102, subject oscillating bearing 11, nut 12, mandrel 13, elastomeric pad 14, bushing 15, temperature sensing
Device 16, end cap 181, end cap 182, accompanies examination bearing 191, accompanies examination bearing 192, pedestal 20, adapter 21, sweat box at reflective strip 17
22, case axis 23, flange shaft 24, shaft coupling 25, motor cabinet 26, handwheel 27 and control circuit 28 are worn.
In the present embodiment, the inner ring of mandrel and subject oscillating bearing is the clearance fit of 0.013~0.038mm；Mandrel
Material is 9Cr18 bearing steel；Load plate material is Q275 carbon steel；Other test fixture materials in sweat box are stainless
Steel；The shape of the center profiled holes of the special-shaped shaft end of mandrel and special-shaped adapter is ellipse；The through-hole of load plate side is M5
Threaded hole；The inner hole rib thickness for accompanying examination bearing block is 0.7mm；The inner hole rib thickness of load plate is 0.7mm；The table of mandrel
Surface hardness should be not less than 50HRC；Accompany examination Selection of Bearings double-row self-aligning rolling bearing；The lubricating system for accompanying examination bearing is grease lubrication；
Temperature sensor selects thermocouple sensor；Displacement sensor selects laser displacement sensor；Rubber sleeve material selection polytetrafluoro
Ethylene (PTFE), and suitably block with cotton yarn rubber sleeve and wear the gap between case axis.
Motor 2 is fixed on motor cabinet 26, and 26 lower end of motor cabinet is equipped with idler wheel and raceway, can be realized centainly along axial
Movement in range.Motor cabinet 26 is mobile to carry out manual actuation by lead screw 1 and handwheel 27, equipped with mechanical lock on handwheel 27,
Guarantee motor 2 in the fixation of the course of work.
Motor shaft 3 is connected the rotary motion of motor 2 with motor 2, by shaft coupling 25, flange shaft 24, wears the biography of case axis 23
The oscillating bearing test fixture inside sweat box is passed, is realized by control 2 revolving speed of motor to subject 11 revolving speed of oscillating bearing
Accurate control.
Electro-hydraulic oil cylinder 6 is mounted on the upper end of rack 8, for providing Radial Loads, electricity to oscillating bearing test fixture
Liquid oil cylinder 6 is controlled by control circuit 28 by cable, and the ring flange of electro-hydraulic oil cylinder 6 passes through sweat box 22 and is connected with load plate 9, is led to
The power transmitting for crossing load plate 9 is applied to the outer ring of subject oscillating bearing 11, and the pressure sensor inside electro-hydraulic oil cylinder 6 is by load feelings
Condition feeds back to control circuit 28, and then realizes the accurate control for applying radial load to subject oscillating bearing 11.
It is gap-matched between the inner ring and subject oscillating bearing 11 of load plate 9.Load plate is connected with loading device, presses
Radial loaded is applied to subject oscillating bearing 11 according to the regulation of radial load section.Load plate 9 designs rib can be circumferentially fixed
It is tested the outer ring one side of oscillating bearing 11, another side carries out axial grip by testing machine main shaft.
Jacking block 51 and jacking block 52 are through mandrel 13, are cooperated by nut 12, elastomeric pad 14, bushing 15, axial grip quilt
The inner ring of examination oscillating bearing 11 is fixed, and clamping force should not be excessive, in case subject 11 inner ring of oscillating bearing deformation causes to rub
The increase of torque accelerates the abrasion of selflubricating liner.The height of jacking block 51 and jacking block 52 should be as small as possible, and then shortens and accompany examination bearing
191 try the distance between the fulcrum of bearing 192 with accompanying, and reduce the moment of flexure that mandrel 13 is born.
Bearing block 101 and bearing block 102 are fixed on pedestal 20 by T-slot and bolt, bearing block 101 and bearing
The inner hole one side design of seat 102 has rib, another side to be circumferentially evenly distributed with threaded hole connection end cap 181 and end cap 182, accompanies examination bearing
191 and accompany examination bearing 192 be mounted in the inner hole of bearing block 102 and bearing block 101 and by rib and end cap 181 and end cap 182
Axial restraint.
It accompanies examination bearing 191 and accompanies examination bearing 192 as during life test and accompany bearing on probation, be fixed on bearing block
On 10, radial support is provided for subject oscillating bearing 11, assistance accompanies examination bearing 191 and accompanies examination 192 inner ring of bearing rotation.
Mandrel 13 and subject 11 inner hole of oscillating bearing between be gap-matched, one end processes screw thread, by with jacking block
51 and jacking block 52, nut 12 clamp the inner ring of subject oscillating bearing 11, the other end processes special-shaped groove, by adapter 21 with wear
Threaded connection between case axis 23 is connected, and subject oscillating bearing 11 is made to realize that inner ring is past according to periodically completing as defined in test program
Physical pendulum is dynamic.
Bushing 15 is cylindrical, hollow pipe, inner ring and 13 outer surface clearance fit of mandrel.Pass through replacement corresponding length
Bushing 15, the oscillating bearing for being adapted to different in width series complete qualification test.
The special-shaped through-hole at 21 center of adapter and the special-shaped groove cooperation transmitting torque of mandrel 13.The circumferential direction of adapter 21 is uniformly distributed
Several threaded holes are connected through a screw thread and are connected with the ring flange for wearing case axis 23.
The outer wall that case axis 23 passes through sweat box 22 is worn, the connection of 22 internal structure external structure of sweat box is realized, wears case axis 23 and pass through
Rubber sleeve 4 passes through the cabinet of sweat box 22, and is loose fit with rubber sleeve 4, and rubber material, which can reduce, wears case axis 23 across temperature
The abrasion occurred when spending case 22 can also reduce the temperature inside the box and extraneous quick heat exchange, well ensure inside sweat box
Preset temperature it is constant.
Shaft coupling 25, moment of flexure caused by can effectively reducing because of the decentraction of 2 operational shock of motor and installation improve mirror
Determine the accuracy and accuracy of test result.
Temperature sensor 16 is mounted in the through-hole that 9 side of load plate is opened, real time monitoring subject 11 outer ring of oscillating bearing
Temperature stops qualification test when temperature is more than specified value immediately, checks subject oscillating bearing 11 and pilot system.
Displacement sensor 7 is mounted on the top of rack 8, passes through the acquisition to 9 radial displacement of load plate, real time monitoring subject
The radial wear of oscillating bearing 11,9 bottom end of load plate are stretched out reflective strip 16 and are used cooperatively with displacement sensor 7, reflective strip 16
It is used with load plate 9 and is threadedly coupled fixation.
Control circuit 28 passes through cable and motor 2, sweat box 22, electro-hydraulic oil cylinder 6, displacement sensor 7 as shown in Fig. 2
And temperature sensor 16 is connected.Control circuit 28 sends instruction, controls revolving speed, the steering, runing time of motor 2, temperature
The temperature value of case 22, warm speed change degree, soaking time, the output loads of electro-hydraulic oil cylinder 6.Meanwhile the real time monitoring of control circuit 28 is simultaneously
Record the shift value and temperature value of displacement sensor 7 and the acquisition acquisition of temperature sensor 16.
Assembly and disassembly are tested during completing cold scuffing test using self-lubricating knuckle bearing cold scuffing qualification test system
Testpieces is simple, convenient, installs subject product in accordance with the following steps in low speed abrasion verification test:
Slowly motor 2 is slided suitable distance by rotation handwheel 27 to the right, and motor shaft 3 is worn from 22 lateral aperture of sweat box
It crosses and wears case axis 23, blending bolt and flange shaft 24, shaft coupling 25 fasten；
Composition accompanies examination bearing assembly: will accompany examination bearing 191 respectively and examination bearing 192 is accompanied to be packed into bearing block 102 and bearing block
101 centre bore, and accompany examination bearing 191 with end cap 181, end cap 182 and screw-threaded coupling and accompany examination bearing 192；
Composition test bearing component: jacking block 51, jacking block 52, subject oscillating bearing 11, load plate 9, bushing 15 are worn respectively
Mandrel 13 is crossed, is locked with elastomeric pad 14 and nut 12, by the special-shaped groove of mandrel 13 and 21 inner hole of adapter；
Test bearing component is tentatively mounted on pedestal 20, and composition test bearing component is passed through and is accompanied in examination bearing
Heart hole adjusts good position, makes two bearing blocks as close as possible to and need to guaranteeing the centering in shafting.Ensuring bearing not by lateral
After power, with bolt by the flanged joint of load plate 9 and electro-hydraulic oil cylinder 6, then it is with bolt that bearing block 101 and bearing block 102 is fixed
It is mounted in the T-slot of pedestal 20；
After each section installation is fixed, the gently inner ring of rotation subject oscillating bearing 11, it is ensured that subject oscillating bearing 11 not by
Lateral force；
Handwheel 27 is gently shaken, 2 shafting of mobile motor is slided to the left, guarantees that the special-shaped groove of mandrel 13 is fully inserted into adapter
21 centre bore and good fit goes through the accuracy that entire shafting ensures to avoid influencing test result to neutrality, locking
Mechanical lock on handwheel 27；
It checks the relative position between displacement sensor 7 and reflective strip 17, guarantees that displacement sensor 7 can effectively record load plate
9 radial displacement, mounting temperature sensor 16 are inserted and secured in the through-hole of 9 side of load plate, it is ensured that temperature sensor
16 can effectively measure the outer ring temperature of subject oscillating bearing 11；
The hatch door of closing temperature case 22 sends instruction start-up temperature case 22 by control circuit 28, adjusts in sweat box 22
Environment temperature reach the specified value in verification test outline after, control electro-hydraulic oil cylinder 6 by 9 pairs of subject oscillating bearings of load plate
11 apply load value specified in verification test outline, and control motor 2 carries out week according to the parameter request in verification test outline
Phase property reciprocally swinging, until reaching defined test number (TN).
Low speed abrasion verification test terminates disassembly subject oscillating bearing and carries out in accordance with the following steps:
After low speed wears qualification test, the radial direction of instruction unloading subject oscillating bearing 11 is sent by control circuit 28
Power opens the hatch door of sweat box 22 after adjusting the environment temperature recovery room temperature in sweat box 22；
Temperature sensor 16 is taken out out of 9 side of load plate through-hole；
The mechanical lock on handwheel 27 is opened, jog handwheel 27 slides 2 shafting of motor to the right, until the special-shaped groove of mandrel 13
It is kept completely separate with the centre bore of adapter 21；
The bolt between bearing block 102 and pedestal 20T type groove is removed, that first takes out left side accompanies examination bearing assembly, including axis
It holds seat 102, accompany examination bearing 191 and end cap 181, then test bearing component is taken out；
Lower nut 12 is dismantled, elastomeric pad 14, bushing 15, jacking block 52, load plate 9, subject are successively removed from mandrel 13
Oscillating bearing 11 and jacking block 51 complete the disassembly of subject oscillating bearing；
Finally, unscrew the bolt of fixed bearing block 101 again, that removes right side accompanies examination bearing assembly, including bearing block 101,
Accompany examination bearing 192 and end cap 182
The present embodiment realize can the temperature of automatic operation, load, move back and forth the control of state, and can monitor in real time
Abrasion loss and subject bearing temperature, effectively reduce interference of the human factor to test result, guarantee test result judgement
Accuracy；Jacking block 51, jacking block 52, load plate 9, bushing 15 are all individual components, convenient disassembly, can be real by more resleeve 15
The clamping of existing different in width series oscillating bearing life test, can be real by replacing mandrel 13, jacking block 51, jacking block 52, load plate 9
The clamping of existing different-diameter oscillating bearing life test, test fixture utilization rate high universalizable is good, can economize on resources and reduce
Equipment inventory land occupation；In addition, the present embodiment using the inner hole of load plate 9 increase unilateral rib, the taper for reducing jacking block, rib with
End cap collaboration is fixed to accompany examination bearing 191 and the structures design such as examination bearing 192 is accompanied to improve, and effectively prevents high-speed overload self-lubricating axis
Extremely incident mandrel is deformed or is broken during holding test, and the assembly of subject bearing can be completed in small space, disassembly
Also extremely convenient, life test time is greatly shortened.
The above is only the preferred embodiments of this patent, are not limited to this patent, for those skilled in the art
For member, this patent can have various modifications and variations.It is all this patent spirit and principle within, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within the protection scope of this patent.
Claims (10)
1. a kind of oscillating bearing cold scuffing pilot system comprising pedestal, generates bearing radial load to be tested at sweat box
The temperature control of radial stress subsystem, the power sub-system for generating roll bearing swing torque to be tested, control test environment temperature
The fixture of subsystem, the wear measurement subsystem of monitoring bearing radial wear to be tested and fixed installation oscillating bearing to be tested
Subsystem, which is characterized in that the Clamp Subsystem accompanies examination bearing block, mandrel, two including two pieces of jacking blocks, load plate, two
Accompany examination bearing, end cap and locking member；
The first end of the load plate is connect with the stress subsystem, the second end of the load plate and the joint to be tested
The outer ring clearance fit of bearing, the radial stress for generating the stress subsystem are applied to the outer of oscillating bearing to be tested
Circle, and rib of the second end of the load plate equipped with the outer ring of oscillating bearing to be tested described in energy axial restraint；
Two pieces of jacking blocks are respectively equipped with centre bore, the inner ring of the centre bore and the mandrel clearance fit, two pieces of tops
Block is located at the left and right side of the oscillating bearing to be tested；
The mandrel passes through the inner ring and two pieces of jacking blocks of the oscillating bearing to be tested, the mandrel and the pass to be tested
The inner ring clearance fit of bearings, the second end of the mandrel are connected with power sub-system；
The locking member is for clamping the inner ring of oscillating bearing to be tested by two pieces of jacking blocks from left side and from right side；
It is described two that examination bearing block is accompanied axially and symmetrically to be mounted on the base, it is described to accompany examination bearing block equipped with described for installing
The inner hole of examination bearing, the inner ring of the inner hole and the outer ring clearance fit for accompanying examination bearing are accompanied, the inner hole is towards to be tested
First face of bearing is equipped with rib, and second face opposite with bearing to be tested is blocked by end cap, the rib and the end
Lid to described for accompanying examination bearing to carry out axial restraint；And
It is described two to accompany examination bearing inner race and described two jacking block clearance fits, for providing branch for the oscillating bearing to be tested
Support.
2. oscillating bearing cold scuffing pilot system according to claim 1, which is characterized in that the Clamp Subsystem is also
Including bushing, the bushing is cylindrical, hollow pipe, the inner ring of the bushing and the mandrel outer surface clearance fit.
3. oscillating bearing cold scuffing pilot system according to claim 1, which is characterized in that the second end of the mandrel
There is special-shaped groove, special-shaped groove side is equipped with the special-shaped through-hole matched with the axis of power sub-system transmitting torque, the core
The axis of axis and power sub-system transmitting torque is attached by the special-shaped groove and special-shaped through-hole.
4. oscillating bearing cold scuffing pilot system according to claim 1, which is characterized in that the pedestal, which is equipped with, to be slided
Slot, it is described that examination bearing block is accompanied to be fixedly installed on the sliding slot, and accompany examination bearing block that can adjust its phase along the chute described in two
It adjusts the distance.
5. oscillating bearing cold scuffing pilot system according to claim 1, which is characterized in that described two to accompany examination bearing
For double-row self-aligning roller bearing.
6. oscillating bearing cold scuffing pilot system according to claim 1, which is characterized in that the power sub-system packet
Motor, motor cabinet, lead screw and handwheel are included, the motor is fixed on the motor cabinet, the lead screw and handwheel and the motor
Seat connection, can driving motor seat moved along the axial direction of the mandrel, and equipped with to the motor cabinet on the handwheel
Carry out the fixed mechanical lock in position.
7. oscillating bearing cold scuffing pilot system according to claim 6, which is characterized in that the power sub-system is also
Including shaft coupling.
8. oscillating bearing cold scuffing pilot system according to claim 6, which is characterized in that the power sub-system is also
Including wearing case axis, the case axis of wearing is connect by the lateral aperture of the sweat box with the mandrel, described to wear case axis outer ring and institute
Stating has seal member between the lateral aperture of sweat box, case axis outer ring and the seal member worn is clearance fit.
9. a kind of assemble method using oscillating bearing cold scuffing pilot system described in any one of claim 1~8,
It is characterized in that, comprising the following steps:
The power sub-system is placed in predeterminated position by step 1, by the axis of power sub-system transmitting torque from the temperature
It is passed through in degree case lateral aperture；
Step 2, composition accompany examination bearing assembly: accompanying examination bearing to be packed into described two accompany in examination bearing block for described two respectively
Hole, and examination bearing is accompanied described in end cap locking；
Step 3, assembling test bearing component: passing through the mandrel for described two jacking blocks, oscillating bearing to be tested and load plate,
Described two jacking blocks and oscillating bearing to be tested are locked with the locking device again, by the motor of the mandrel and the motor
Axis connection；
The distance between examination bearing block position is accompanied described in step 4, adjustment, by described two jacking blocks of the test bearing component point
The centre bore that examination bearing Chuan Guo not accompanied, the load plate is fixedly connected with the stress subsystem, then accompany examination bearing for described
Seat is fixedly mounted on the base；
Step 5 checks that entire shafting ensures to neutrality, then gently rotates the inner ring of subject oscillating bearing, it is ensured that subject joint
Bearing is not by lateral force；
Step 6 checks that the temperature control subsystem, wear measurement subsystem work normally；And
Step 7, the starting sweat box are adjusted after the environment temperature in the sweat box reaches predetermined temperature value, described in control
Stress subsystem applies ordinance load value to the oscillating bearing to be tested by the load plate, controls the power sub-system
Periodic reverse swing is carried out according to the parameter request in the verification test outline, until reaching defined test number (TN).
10. the assemble method of oscillating bearing cold scuffing pilot system according to claim 9, which is characterized in that described
Method include thes steps that for disassembly 8, the step 8 specifically includes the following steps:
Step 81, cold scuffing after the test, unload the radial force of the oscillating bearing to be tested, adjust in the sweat box
Environment temperature restore room temperature after, open the sweat box；
Step 82, the connection for disconnecting the mandrel with the motor shaft of the motor；
Step 83 accompanies examination bearing block to remove from the pedestal for described, first take out left side it is described accompany examination bearing assembly after, then will
The test bearing component takes out；And
Step 84, unscrewing locking member, successively remove the left side jacking block, the load plate, the subject joint from mandrel
Bearing and the right side jacking block complete disassembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652974.0A CN110243602B (en) | 2019-07-19 | 2019-07-19 | Low-temperature wear test system for joint bearing and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110657988A (en) * | 2019-11-13 | 2020-01-07 | 浙江省机电设计研究院有限公司 | Bearing axial test mechanism |
| CN110686896A (en) * | 2019-11-13 | 2020-01-14 | 浙江省机电设计研究院有限公司 | Four-dimensional motion separating mechanism applied to bearing test |
| CN110749441A (en) * | 2019-11-11 | 2020-02-04 | 清华大学 | Low-temperature large-temperature variable joint bearing test platform and motion and load simulation system |
| CN110793773A (en) * | 2019-11-11 | 2020-02-14 | 清华大学 | Low-temperature large-temperature change joint bearing test platform |
| CN110927056A (en) * | 2019-12-25 | 2020-03-27 | 中国航空工业集团公司西安飞机设计研究所 | Device and method for measuring friction coefficient between bearing inner ring and bolt surface |
| CN110927057A (en) * | 2019-12-25 | 2020-03-27 | 中国航空工业集团公司西安飞机设计研究所 | Device and method for measuring friction coefficient between end face of bearing inner ring and surface of bushing |
| CN111189636A (en) * | 2020-01-10 | 2020-05-22 | 中国航空综合技术研究所 | Clamp system for life test of joint bearing |
| CN112067293A (en) * | 2020-09-29 | 2020-12-11 | 中国航空综合技术研究所 | Self-lubricating joint bearing wear life prediction model correction method |
| CN112664567A (en) * | 2020-12-04 | 2021-04-16 | 国家电投集团广西兴安风电有限公司 | Automatic bearing lubrication control method and device |
| CN112664566A (en) * | 2020-12-04 | 2021-04-16 | 国家电投集团广西兴安风电有限公司 | Bearing grease lubrication monitoring and determining method and system |
| CN113566693A (en) * | 2021-08-16 | 2021-10-29 | 洛阳轴承研究所有限公司 | Radial clearance test device and test method for radial spherical plain bearing |
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| CN117705449A (en) * | 2024-02-06 | 2024-03-15 | 聊城大学 | Centripetal knuckle bearing wear life test system and test method |
| CN117705449B (en) * | 2024-02-06 | 2024-04-26 | 聊城大学 | Centripetal knuckle bearing wear life test system and test method |
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|---|---|---|---|---|
| CN110749441A (en) * | 2019-11-11 | 2020-02-04 | 清华大学 | Low-temperature large-temperature variable joint bearing test platform and motion and load simulation system |
| CN110793773A (en) * | 2019-11-11 | 2020-02-14 | 清华大学 | Low-temperature large-temperature change joint bearing test platform |
| CN110657988B (en) * | 2019-11-13 | 2021-12-24 | 浙江省机电产品质量检测所有限公司 | Bearing axial test mechanism |
| CN110686896A (en) * | 2019-11-13 | 2020-01-14 | 浙江省机电设计研究院有限公司 | Four-dimensional motion separating mechanism applied to bearing test |
| CN110657988A (en) * | 2019-11-13 | 2020-01-07 | 浙江省机电设计研究院有限公司 | Bearing axial test mechanism |
| CN110927056B (en) * | 2019-12-25 | 2022-05-17 | 中国航空工业集团公司西安飞机设计研究所 | Device and method for measuring friction coefficient between bearing inner ring and bolt surface |
| CN110927057A (en) * | 2019-12-25 | 2020-03-27 | 中国航空工业集团公司西安飞机设计研究所 | Device and method for measuring friction coefficient between end face of bearing inner ring and surface of bushing |
| CN110927056A (en) * | 2019-12-25 | 2020-03-27 | 中国航空工业集团公司西安飞机设计研究所 | Device and method for measuring friction coefficient between bearing inner ring and bolt surface |
| CN110927057B (en) * | 2019-12-25 | 2022-05-13 | 中国航空工业集团公司西安飞机设计研究所 | Device and method for measuring friction coefficient between end face of bearing inner ring and surface of bushing |
| CN111189636B (en) * | 2020-01-10 | 2022-02-11 | 中国航空综合技术研究所 | Clamp system for life test of joint bearing |
| CN111189636A (en) * | 2020-01-10 | 2020-05-22 | 中国航空综合技术研究所 | Clamp system for life test of joint bearing |
| CN112067293A (en) * | 2020-09-29 | 2020-12-11 | 中国航空综合技术研究所 | Self-lubricating joint bearing wear life prediction model correction method |
| CN112664566A (en) * | 2020-12-04 | 2021-04-16 | 国家电投集团广西兴安风电有限公司 | Bearing grease lubrication monitoring and determining method and system |
| CN112664567A (en) * | 2020-12-04 | 2021-04-16 | 国家电投集团广西兴安风电有限公司 | Automatic bearing lubrication control method and device |
| CN113566693A (en) * | 2021-08-16 | 2021-10-29 | 洛阳轴承研究所有限公司 | Radial clearance test device and test method for radial spherical plain bearing |
| CN113566693B (en) * | 2021-08-16 | 2023-05-26 | 洛阳轴承研究所有限公司 | Radial clearance test device and test method for radial knuckle bearing |
| CN114076677A (en) * | 2021-11-29 | 2022-02-22 | 中国航发哈尔滨轴承有限公司 | Bearing tester shafting structure |
| CN115014762A (en) * | 2022-07-04 | 2022-09-06 | 清华大学 | Ultra-low temperature vacuum bearing testing machine |
| CN115014762B (en) * | 2022-07-04 | 2023-06-30 | 清华大学 | Ultralow temperature vacuum bearing testing machine |
| CN117705449A (en) * | 2024-02-06 | 2024-03-15 | 聊城大学 | Centripetal knuckle bearing wear life test system and test method |
| CN117705449B (en) * | 2024-02-06 | 2024-04-26 | 聊城大学 | Centripetal knuckle bearing wear life test system and test method |
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