CN104913933B - A kind of strong load rolling bearing accelerated fatigue test device - Google Patents
A kind of strong load rolling bearing accelerated fatigue test device Download PDFInfo
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- CN104913933B CN104913933B CN201510254360.9A CN201510254360A CN104913933B CN 104913933 B CN104913933 B CN 104913933B CN 201510254360 A CN201510254360 A CN 201510254360A CN 104913933 B CN104913933 B CN 104913933B
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Abstract
The present invention relates to a kind of strong load rolling bearing accelerated fatigue test device, belong to mechanical engineering technical field.The present invention includes drive device, transmission device, experiment test device, loading device, track-type facilities, overload safety device；Its track arrangements is placed on ground; drive device, transmission device, experiment test device, loading device are installed on track-type facilities; drive device is connected with transmission device one end; the other end of transmission device and one end of experiment test device are connected; the other end of experiment test device is connected with loading device; between drive device and transmission device, connected between transmission device and loading device by overload safety device.Cost of the present invention is relatively low, simple in construction, is easily achieved, safeguards simply, conveniently；Signaling path can be shortened, signal attenuation is reduced and almost prevent ambient noise interference；The fatigue failure cycle can be shortened, scientific research speed and efficiency is improved, testing stand safety coefficient is improved.
Description
Technical field
The present invention relates to a kind of strong load rolling bearing accelerated fatigue test device, belong to mechanical engineering technical field.
Background technology
Rolling bearing occupies very important status in machinery industry, and rolling bearing is described as in " industrial joint ".According to
Information, it is due to caused by bearing fault problem that rotating machinery fault failure, which has 30%,.Rolling bearing contact fatigue is failed
The accurate judgement of process can not only ensure the normal operation of enterprise or experiment, and the burst in neighbouring end-of-life stage is avoided that again
Failure and the period of the day from 1 p.m. to 3 p.m., which are changed, causes shutdown loss, and the good economic benefits tool for maintaining enterprise is of great significance.The present invention
Carry out fatigue failure research to thrust bearing, extend in the research failed to other type rolling bearing contact fatigues.
Effectively to control failure, damage of the bearing situation must be grasped as early as possible, and tired process is judged with accurate.Earlier damage
Signal is very faint, easily falls into oblivion and is difficult to recognize in ambient noise, existing experimental program is essentially open, ambient noise is easily
It is mixed into.And complicated, signaling path is long, decay is big, is unfavorable for studying early stage small-signal feature.Even if with short
The fatigue test board of bang path also because the damage signal that causes finally to obtain the problems such as loading dynamics is inadequate or non-constant because
Experiment condition is inconsistent and causes damage process to be judged by accident.And because current testing stand self structure factor can not load strong load
Lotus, even if loading strong load can still cause to test potential safety hazard, bearing failure process is slow, causes the drop of experiment and scientific research efficiency
It is low.In addition, current testing program less focuses on the lubrication circumstances of testing stand itself, ignoring lubrication may cause minor components to carry
Early abrasion, causes its damage signal to be mixed into increase identification difficulty in echo signal, and testing stand service life is also because of abrasion
Substantially reduce.
The content of the invention
The invention provides a kind of strong load rolling bearing accelerated fatigue test device, tested with solving existing experimental rig
During because be easily introduced the long signal attenuation of a large amount of interference noises, bang path it is big caused by gather that Signal-to-Noise is low, Wu Fajia
Carry that strong load, experiment safety coefficient be high, in experiment non-key element fault interference that may be present, testing stand because lacking lubrication
The problems such as bulk life time caused etc. reason is reduced, the test period is long.
The technical scheme is that：A kind of strong load rolling bearing accelerated fatigue test device, including drive device, biography
Dynamic device, experiment test device, loading device, track-type facilities, overload safety device；Its track arrangements is placed in ground
On, drive device, transmission device, experiment test device, loading device are installed on track-type facilities, and drive device is filled with transmission
One end connection is put, the other end of transmission device and one end of experiment test device are connected, and the other end of experiment test device is with adding
Carry and put connection, between drive device and transmission device, connected between transmission device and loading device by overload safety device
Connect.
The drive device includes motor 1, shaft coupling 2；Motor 1 is arranged on the sliding block 22 of track-type facilities, shaft coupling 2 one
End is connected with the drive shaft of motor 1；
Transmission device includes power transmission shaft 3, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II
8th, bearing block 9, dust cap II 10, bearings disk 11；Bearing block 9 is arranged on sliding block 22, dust plug 4, dust cap I 5, corner connection
Contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10 be arranged on bearing block 9 on, pad 7 be located at angular contact bearing I 6,
Between angular contact bearing II 8, power transmission shaft 3 be arranged on angular contact bearing I 6, pad 7, angular contact bearing II 8, on dust cap II 10,
Dust cap II 10 matches with power transmission shaft 3, the front of bearing block 9, and the one end of power transmission shaft 3 is connected with shaft coupling 2, the other end and bearing
Support plate 11 is connected；
Experiment test device includes test thrust bearing 12, centering trip bolt 13, the rolling ring 14 that accelerates fatigue, sensor I
15th, sensor II 16, sensor pocket storehouse 18, soundproof rubber block 25；Test the side of thrust bearing 12 and the phase of bearings disk 11
Connection, the test opposite side of thrust bearing 12 is installed to accelerate fatigue rolling ring 14 and to be connected with sensor pocket storehouse 18, and by right
Middle trip bolt 13 is fixed, and the other end of sensor pocket storehouse 18 is connected with loading device, and centering trip bolt 13, accelerate fatigue rolling
Circle 14, soundproof rubber block 25 are arranged on bearing block and accommodated on storehouse 18, and sensor I 15, sensor II 16 are arranged on sensor pocket
It is connected in storehouse 18 with the back of rolling ring 14 that accelerates fatigue；
Loading device includes hydraulic cylinder 19, foot stool 20；Hydraulic cylinder 19 is connected with sensor pocket storehouse 18, foot stool 20 and liquid
Cylinder pressure 19 is connected and is fixed on sliding block 22；
Track-type facilities include studs 21, sliding block 22, guide rail 23；Guide rail 23 is placed in ground, and sliding block 22 passes through double end
Stud 21 is arranged on guide rail 23；
Overload safety device includes pin 17, antioverloading ceiling 24, floor 26, thrust block 27；Pin 17 is vertical
In the piston rod of hydraulic cylinder 19, sensor pocket storehouse 18 is connected by pin 17 with the piston rod of hydraulic cylinder 19, antioverloading protection
Bearing block 9 is connected by bar 24 with hydraulic cylinder 19, and floor 26 is connected with the back of bearing block 9, and thrust block 27 is by motor 1 and axle
Bearing 9 is connected.
Described one end of shaft coupling 2 and motor 1 drive shaft is by key or is connected through a screw thread；The one end of power transmission shaft 3 and shaft coupling
Device 2 is connected by key or by screw thread, and the other end is connected with bearings disk 11 by key or by screw thread；Test thrust
The side of bearing 12 is connected with bearings disk 11 by key or by screw thread；Floor 26 is integrally machined or passed through with bearing block 9
It is welded to connect.
The back of bearing block 9 opens up grease lubrication groove provided with the symmetrical through hole of even number, top；Dust plug 4 and bearing
9 backside vias of seat match；The shape of dust cap I 5 is opened grease lubrication groove shape with the top of bearing block 9 and matched.
The centering trip bolt 13 is perpendicular to the periphery tangent line of sensor pocket storehouse 18.
The rolling ring 14 that accelerates fatigue is rolled with test thrust bearing 12 completely for diameter, thickness, material and Technology for Heating Processing
The consistent circular sheet of circle.
The sensor pocket storehouse 18 is provided with multiple line outlets, and untapped line outlet is sealed by soundproof rubber block 25.
The hydraulic cylinder 19 has pressure gauge and pressurizer.
The antioverloading ceiling 24 is symmetrically installed in pairs with motor shaft, and thrust block 27 is carried out symmetrical with motor shaft
Install.
The present invention the course of work be：
Hydraulic cylinder 19 is placed on sliding block 22 first and is fixed on guide rail 23, then according to anti-tensile bars gear size
By motor 1, thrust block 27, bearing block 9, angular contact bearing I 6, pad 7, angular contact bearing II 8, power transmission shaft 3, bearings
Disk 11 is fixed on appropriate location by Fig. 1, and motor 1 is connected by shaft coupling 2 with power transmission shaft 3.Wherein dust plug 4, dust cap I 5, anti-
Dirt lid II 10 is already installed on bearing block 9, and floor 26 is fixedly connected by modes such as welding with bearing block 9.Multipair anti-mistake
Carry ceiling 24 bottom of bearing block 9 is connected with the bottom of hydraulic cylinder 19.Afterwards, by sensor pocket storehouse 18 and hydraulic cylinder 19
After piston rod is connected by structures such as screw threads, the two is fixed by pin 17, accelerating fatigue, the back of rolling ring 14 is placed with biography
Sensor I 15（Sensor II 16 can be placed with simultaneously）, will then accelerate fatigue rolling ring 14 and sensor（Sensor 15 I, sensing
Device II 16）Together detain to sensor pocket storehouse 18, the wire rod of sensor is extended out by the line outlet in sensor pocket storehouse 18,
The untapped line outlet of sensor pocket storehouse 18 then carries out sound insulating seal using soundproof rubber block 25, is then pulled by accurate torsion
The similar means such as hand are reversed to centering trip bolt 13, and acceleration is fixed by the threaded pre-tightening power of centering trip bolt 13
Tired rolling ring 14.After the test other end of thrust bearing 12 and bearings disk 11 are connected, start 19 pairs of tests of hydraulic cylinder and push away
Power bearing 12 is loaded, and using hydraulic coupling meter reading as loading benchmark, makes loading environment consistent.Finally, by being powered to motor 1,
Drive power transmission shaft 3 grade to rotate, then expansion thrust bearing can accelerate fatigue testing experiment under correspondence speed conditions.Off-test
Afterwards, in the case where not dismantling testing stand, removing the top dust cap I 5 of bearing block 9 can be easily to angular contact axle in bearing block 9
Hold I 6 and update lubricating grease with angular contact bearing II 8.If not testing or because being on the verge of angular contact bearing I 6 and angular contact bearing for a long time
It is slightly smaller by the radius ratio dust plug 4 for impacting the hole of 9 back dust plug of insertion bearing block 4 simultaneously when II 8 fatigue lives needed dismounting
Pin smoothly to take out angular contact bearing I 6 and angular contact bearing II 8.
The present invention operation principle be：
First by drive device, transmission device, experiment test device, loading device, track-type facilities, overload safety device
Fix, test thrust bearing 12 is loaded by Fig. 1 positions by loading device, and the rotation that is powered to motor 1 keeps examination
Test platform in running order.In process of the test, the rolling ring 14 that accelerates fatigue instead of original bearing runner, is changed into by curved face contact
Plane contact, reduces contact area, can increase contact stress under equal loading environment.By hollow original rolling ring by reality
The rolling ring 14 that accelerates fatigue of the heart is replaced, and many pieces of sensors can be placed with its behind（Sensor I 15, sensor II 16 etc.）, can be by
Signal is picked up with most short bang path, signal attenuation is effectively reduced, particularly with high-frequency signal.Coordinate sensor pocket storehouse
18 structures, carry out in almost closed form and test, can prevent ambient noise interference substantially.Sensor pocket storehouse 18 is provided with many places
Line outlet, facilitates the centralization and decentralization of sensor wire to lay, and untapped line outlet is sealed by soundproof rubber block 25, effectively drop
Low sensor is accommodated in storehouse 18 from outside noise.It is furnished with screwed hole in the port in sensor pocket storehouse 18, by accurately turning round
Torque wrench is reversed to centering trip bolt 13, and the rolling ring that accelerates fatigue is fixed by the threaded pre-tightening power of centering trip bolt 13
14, make the centering all the time of rolling ring 14 that accelerates fatigue before and after experiment, ensured that loading force is uniform.Due to test requirements document apply strong load with
Shorten the test period, accelerate scientific research process, overload safety device can ensure that experiment is carried out safely under strong load.Pin 17
It can prevent because the excessive friction that strong load is produced rotates the sensor pocket storehouse 18 being connected with the piston rod thread of hydraulic cylinder 19,
Prevent from crimping sensor wire because sensor pocket storehouse 18 is rotated, break or because of pulling function to the shifting caused by sensor
Position, damage.Antioverloading ceiling 24 has multiple position gears, can need to carry out the selection of different gears according to specific experiment,
It is able to ensure that loading device load deflection is no more than the position that antioverloading ceiling 24 is limited in process of the test, drives motor 1
Moving axis not because overload and caused by damage.Coordinate floor 26 behind and its internal by angular contact ball bearing I 6, corner connection in bearing block 9
Touch ball bearing II 8 to connect, enhance the ability of the overall resistance thrust of bearing block 9, it is therefore prevented that bearing block 9 because bear thrust it is excessive and
The generation for the problems such as causing fracture of root.Thrust block 27 connects motor 1, bearing block 9 so that the strong load of application is by motor
Frictional force between 1 and guide rail 23 shares a part, reduce further and applies the potential safety hazard that strong load is likely to result in, simultaneously
Make to remain certain distance between motor 1 and bearing block 9, also further protect the normal without axial load of the drive shaft of motor 1
Operating.The top of bearing block 9 is provided with grease trough, can facilitate in the case where not dismantling testing stand, timely update lubricating grease, keep away
Exempt from the non-critical component abrasion caused by lubricating grease fails or lacks the reasons such as lubricating grease and the signal of collection is interfered, more
The stopping accident thereby resulted in can be avoided, extends testing stand service life, and coordinates dust cap I 5, dust cap II 10, profit is ensured
The cleaning of consistent lubricant.With using hydraulic coupling meter reading during loading as loading benchmark in process of the test, before and after making in process of the test
Loading environment is consistent.
Explanation：Operation principle is only the workflow for illustrating strong load bearings fatigue test board, it is not limited to which work is former
Structure and connected mode in reason.
The beneficial effects of the invention are as follows：
1st, cost is relatively low, simple in construction, is easily achieved, safeguards simply, conveniently；
2nd, due to devising accelerate fatigue rolling ring and sensor pocket chamber structure, signaling path, reduction letter can be shortened
Number decay and almost prevent ambient noise interference；
3rd, due to devising overload safety device, load can be strengthened in process of the test, the fatigue failure cycle can be shortened,
Scientific research speed and efficiency are improved, testing stand safety coefficient is improved；
4th, it is uniform by loading force due to devising centering trip bolt, it is ensured that test bearing centering all the time before and after experiment；
5th, the bearing block of grease trough is provided with due to devising, lubricating grease can be conveniently updated, non-critical component is eliminated and does
Disturb, it is accurate that collection signal impairment is characterized, the good operation of experiment can be ensured, be prevented effectively from and stop because of caused by testing stand failure
Machine, and coordinate dust cap to ensure lubricating grease cleaning, testing stand service life is extended to a certain extent；
6th, due to devising the multiple gears of antioverloading ceiling, can sets itself gear to determine the withdrawal space, facilitate
Observation to damage of the bearing process.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is partial structurtes enlarged diagram of the invention；
Fig. 3 is the power transmission shaft front view in transmission device of the present invention；
Fig. 4 is the power transmission shaft right view in transmission device of the present invention；
Fig. 5 is the three-dimensional normal axomometric drawing of power transmission shaft in transmission device of the present invention；
Fig. 6 is the front view of dust cap I in transmission device of the present invention；
Fig. 7 is the sectional view of dust cap I in transmission device of the present invention；
Fig. 8 is the three-dimensional normal axomometric drawing of dust cap I in transmission device of the present invention；
Fig. 9 is the bearing block front view in transmission device of the present invention；
Figure 10 is the bearing block sectional view in transmission device of the present invention；
Figure 11 is the three-dimensional normal axomometric drawing of bearing block in transmission device of the present invention；
Figure 12 is the front view of dust cap II in transmission device of the present invention；
Figure 13 is the sectional view of dust cap II in transmission device of the present invention；
Figure 14 is the three-dimensional normal axomometric drawing of dust cap II in transmission device of the present invention；
Figure 15 is the bearings disk front view in transmission device of the present invention；
Figure 16 is the bearings disk sectional view in transmission device of the present invention；
Figure 17 is the three-dimensional normal axomometric drawing of bearings disk in transmission device of the present invention；
Figure 18 is the sensor pocket storehouse front view in experiment test device of the present invention；
Figure 19 is the sensor pocket storehouse sectional view in experiment test device of the present invention；
Figure 20 is the three-dimensional normal axomometric drawing in sensor pocket storehouse in experiment test device of the present invention；
In figure it is each marked as：1-motor, 2-shaft coupling, 3-power transmission shaft, 4-dust plug, 5-dust cap I, 6-corner connection
Contact bearing I, 7-pad, 8-angular contact bearing II, 9-bearing block, 10-dust cap II, 11-bearings disk, 12-survey
Try thrust bearing, 13-centering trip bolt, the 14-rolling ring that accelerates fatigue, 15-sensor I, 16-sensor II, 17-pin
Nail, 18-sensor pocket storehouse, 19-hydraulic cylinder, 20-foot stool, 21-studs, 22-sliding block, 23-guide rail, 24-it is anti-
Overload protection bar, 25-soundproof rubber block, 26-floor, 27-thrust block.
Embodiment
With reference to the accompanying drawings and examples, the invention will be further described, but present disclosure be not limited to it is described
Scope.
Embodiment 1：As shown in Fig. 1-2 0, a kind of strong load rolling bearing accelerated fatigue test device, including drive device,
Transmission device, experiment test device, loading device, track-type facilities, overload safety device；Its track arrangements is placed in ground
On, drive device, transmission device, experiment test device, loading device are installed on track-type facilities, and drive device is filled with transmission
One end connection is put, the other end of transmission device and one end of experiment test device are connected, and the other end of experiment test device is with adding
Carry and put connection, between drive device and transmission device, connected between transmission device and loading device by overload safety device
Connect.
The drive device includes motor 1, shaft coupling 2；Motor 1 is arranged on the sliding block 22 of track-type facilities, shaft coupling 2 one
End is connected with the drive shaft of motor 1；
Transmission device includes power transmission shaft 3, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II
8th, bearing block 9, dust cap II 10, bearings disk 11；Bearing block 9 is arranged on sliding block 22, dust plug 4, dust cap I 5, corner connection
Contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10 be arranged on bearing block 9 on, pad 7 be located at angular contact bearing I 6,
Between angular contact bearing II 8, power transmission shaft 3 be arranged on angular contact bearing I 6, pad 7, angular contact bearing II 8, on dust cap II 10,
Dust cap II 10 matches with power transmission shaft 3, the front of bearing block 9, and the one end of power transmission shaft 3 is connected with shaft coupling 2, the other end and bearing
Support plate 11 is connected；
Experiment test device includes test thrust bearing 12, centering trip bolt 13（Such as：4 mutually it is in 90 °/3 be mutually
120°）, the rolling ring 14 that accelerates fatigue, sensor I 15, sensor II 16（Sensor I 15 is acoustic emission sensor, sensor II 16
For vibrating sensor）, sensor pocket storehouse 18, soundproof rubber block 25；Test the side of thrust bearing 12 and the phase of bearings disk 11
Connection, the test opposite side of thrust bearing 12 is installed to accelerate fatigue rolling ring 14 and to be connected with sensor pocket storehouse 18, and by right
Middle trip bolt 13 is fixed, and the other end of sensor pocket storehouse 18 is connected with loading device, and centering trip bolt 13, accelerate fatigue rolling
Circle 14, soundproof rubber block 25 are arranged on bearing block and accommodated on storehouse 18, and sensor I 15, sensor II 16 are arranged on sensor pocket
It is connected in storehouse 18 with the back of rolling ring 14 that accelerates fatigue；
Loading device includes hydraulic cylinder 19, foot stool 20；Hydraulic cylinder 19 is connected with sensor pocket storehouse 18, foot stool 20 and liquid
Cylinder pressure 19 is connected and is fixed on sliding block 22；
Track-type facilities include studs 21, sliding block 22, guide rail 23；Guide rail 23 is placed in ground, and sliding block 22 passes through double end
Stud 21 is arranged on guide rail 23；
Overload safety device includes pin 17, antioverloading ceiling 24, floor 26, thrust block 27；Pin 17 is vertical
In the piston rod of hydraulic cylinder 19, sensor pocket storehouse 18 is connected by pin 17 with the piston rod of hydraulic cylinder 19, antioverloading protection
Bearing block 9 is connected by bar 24 with hydraulic cylinder 19, and floor 26 is connected with the back of bearing block 9, and thrust block 27 is by motor 1 and axle
Bearing 9 is connected.
Described one end of shaft coupling 2 is connected with the drive shaft of motor 1 by key；The one end of power transmission shaft 3 passes through key phase with shaft coupling 2
Connection, the other end is connected with bearings disk 11 by key；The test side of thrust bearing 12 passes through key with bearings disk 11
It is connected；Floor 26 is integrally machined with bearing block 9.
The back of bearing block 9 opens up grease lubrication groove provided with the symmetrical through hole of even number, top；Dust plug 4 and bearing
9 backside vias of seat match；The shape of dust cap I 5 is opened grease lubrication groove shape with the top of bearing block 9 and matched.
The centering trip bolt 13 is perpendicular to the periphery tangent line of sensor pocket storehouse 18.
The rolling ring 14 that accelerates fatigue is rolled with test thrust bearing 12 completely for diameter, thickness, material and Technology for Heating Processing
The consistent circular sheet of circle.
The sensor pocket storehouse 18 is sealed provided with 2 line outlets, untapped line outlet by soundproof rubber block 25.
The hydraulic cylinder 19 has pressure gauge and pressurizer.
The antioverloading ceiling 24 is symmetrically installed in pairs with motor shaft, and thrust block 27 is carried out symmetrical with motor shaft
Install（Such as：2 pairs of antioverloading ceilings 24,3 pieces of thrust blocks 27：2 pairs of antioverloading ceilings 24 are by the bottom of bearing block 9 and hydraulic pressure
The bottom of cylinder 19 is connected, and 3 pieces of thrust blocks 27 offset the bottom of motor 1 with the bottom of bearing block 9, wherein two pieces are symmetrically distributed in electricity
Machine 1 and the bottom margin both sides of bearing block 9, remaining 1 piece is located at motor 1 and the bottom margin center position of bearing block 9）.
Embodiment 2：Substantially the same manner as Example 1 as shown in Fig. 1-2 0, its difference is：A kind of strong load is rolled
Bearing accelerated fatigue test device,
The sensor pocket storehouse 18 is sealed provided with 8 line outlets, untapped line outlet by soundproof rubber block 25.
Described one end of shaft coupling 2 and the drive shaft of motor 1 are connected through a screw thread；The one end of power transmission shaft 3 passes through spiral shell with shaft coupling 2
Line is connected, and the other end is connected with bearings disk 11 by screw thread；Test the side of thrust bearing 12 and bearings disk 11
It is connected by screw thread；Floor 26 is with bearing block 9 by being welded to connect.
Embodiment 3：Substantially the same manner as Example 1 as shown in Fig. 1-2 0, its difference is：A kind of strong load is rolled
Bearing accelerated fatigue test device,
The sensor pocket storehouse 18 is provided with 4 line outlets（It is mutually in 90 ° symmetrical）, untapped line outlet is by sound insulation
Block rubber 25 is sealed.
Described one end of shaft coupling 2 and the drive shaft of motor 1 are connected through a screw thread；The one end of power transmission shaft 3 passes through key with shaft coupling 2
It is connected, the other end is connected with bearings disk 11 by key；The test side of thrust bearing 12 passes through with bearings disk 11
Screw thread is connected；1 pair of floor 26 is symmetrically distributed in bearing block back both sides, and passes through welding manner and the back fixation of bearing block 9.
Embodiment 4：As shown in Fig. 1-2 0, a kind of strong load rolling bearing accelerated fatigue test device, including drive device,
Transmission device, experiment test device, loading device, track-type facilities, overload safety device；Its track arrangements is placed in ground
On, drive device, transmission device, experiment test device, loading device are installed on track-type facilities, and drive device is filled with transmission
One end connection is put, the other end of transmission device and one end of experiment test device are connected, and the other end of experiment test device is with adding
Carry and put connection, between drive device and transmission device, connected between transmission device and loading device by overload safety device
Connect.
The drive device includes motor 1, shaft coupling 2；Motor 1 is arranged on the sliding block 22 of track-type facilities, shaft coupling 2 one
End is connected with the drive shaft of motor 1；
Transmission device includes power transmission shaft 3, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II
8th, bearing block 9, dust cap II 10, bearings disk 11；Bearing block 9 is arranged on sliding block 22, dust plug 4, dust cap I 5, corner connection
Contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10 be arranged on bearing block 9 on, pad 7 be located at angular contact bearing I 6,
Between angular contact bearing II 8, power transmission shaft 3 be arranged on angular contact bearing I 6, pad 7, angular contact bearing II 8, on dust cap II 10,
Dust cap II 10 matches with power transmission shaft 3, the front of bearing block 9, and the one end of power transmission shaft 3 is connected with shaft coupling 2, the other end and bearing
Support plate 11 is connected；
Experiment test device includes test thrust bearing 12, centering trip bolt 13（Such as：4 mutually it is in 90 °/3 be mutually
120°）, the rolling ring 14 that accelerates fatigue, sensor I 15, sensor II 16（Sensor I 15, sensor II 16 are voice sending sensor
Device）, sensor pocket storehouse 18, soundproof rubber block 25；The test side of thrust bearing 12 is connected with bearings disk 11, and test is pushed away
The opposite side of power bearing 12 is installed to accelerate fatigue rolling ring 14 and to be connected with sensor pocket storehouse 18, and passes through centering trip bolt 13
Fixed, the other end of sensor pocket storehouse 18 is connected with loading device, centering trip bolt 13, the rolling ring 14 that accelerates fatigue, sound insulation rubber
Blob of viscose 25 is arranged on bearing block and accommodated on storehouse 18, and sensor I 15, sensor II 16 are arranged in sensor pocket storehouse 18 with accelerating
The tired back of rolling ring 14 connection；
Loading device includes hydraulic cylinder 19, foot stool 20；Hydraulic cylinder 19 is connected with sensor pocket storehouse 18, foot stool 20 and liquid
Cylinder pressure 19 is connected and is fixed on sliding block 22；
Track-type facilities include studs 21, sliding block 22, guide rail 23；Guide rail 23 is placed in ground, and sliding block 22 passes through double end
Stud 21 is arranged on guide rail 23；
Overload safety device includes pin 17, antioverloading ceiling 24, floor 26, thrust block 27；Pin 17 is vertical
In the piston rod of hydraulic cylinder 19, sensor pocket storehouse 18 is connected by pin 17 with the piston rod of hydraulic cylinder 19, antioverloading protection
Bearing block 9 is connected by bar 24 with hydraulic cylinder 19, and floor 26 is connected with the back of bearing block 9, and thrust block 27 is by motor 1 and axle
Bearing 9 is connected.
The back of bearing block 9 opens up grease lubrication groove provided with the symmetrical through hole of even number, top；Dust plug 4 and bearing
9 backside vias of seat match；The shape of dust cap I 5 is opened grease lubrication groove shape with the top of bearing block 9 and matched.
The centering trip bolt 13 is perpendicular to the periphery tangent line of sensor pocket storehouse 18.
The rolling ring 14 that accelerates fatigue is rolled with test thrust bearing 12 completely for diameter, thickness, material and Technology for Heating Processing
The consistent circular sheet of circle.
The sensor pocket storehouse 18 is provided with multiple line outlets, and untapped line outlet is sealed by soundproof rubber block 25.
The hydraulic cylinder 19 has pressure gauge and pressurizer.
The antioverloading ceiling 24 is symmetrically installed in pairs with motor shaft, and thrust block 27 is carried out symmetrical with motor shaft
Install（Such as：1 pair of antioverloading ceiling 24,2 pieces of thrust blocks 27：1 pair of antioverloading ceiling 24 is by the bottom of bearing block 9 and hydraulic pressure
The bottom of cylinder 19 is connected, and 2 pieces of thrust blocks 27 offset the bottom of motor 1 with the bottom of bearing block 9, and be symmetrically distributed in motor 1 with
And the bottom margin both sides of bearing block 9）.
Embodiment 5：As shown in Fig. 1-2 0, a kind of strong load rolling bearing accelerated fatigue test device, including drive device,
Transmission device, experiment test device, loading device, track-type facilities, overload safety device；Its track arrangements is placed in ground
On, drive device, transmission device, experiment test device, loading device are installed on track-type facilities, and drive device is filled with transmission
One end connection is put, the other end of transmission device and one end of experiment test device are connected, and the other end of experiment test device is with adding
Carry and put connection, between drive device and transmission device, connected between transmission device and loading device by overload safety device
Connect.
Above in conjunction with accompanying drawing to the present invention embodiment be explained in detail, but the present invention be not limited to it is above-mentioned
Embodiment, can also be before present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess
Put that various changes can be made.
Claims (6)
1. a kind of strong load rolling bearing accelerated fatigue test device, it is characterised in that：Including drive device, transmission device, examination
Test test device, loading device, track-type facilities, overload safety device；Its track arrangements is placed on ground, driving dress
Put, transmission device, experiment test device, loading device are installed on track-type facilities, drive device connects with transmission device one end
Connect, the other end of transmission device and one end of experiment test device are connected, the other end and the loading device of experiment test device connect
Connect, between drive device and transmission device, connected between transmission device and loading device by overload safety device；
The drive device includes motor（1）, shaft coupling（2）；Motor（1）Installed in the sliding block of track-type facilities（22）On, shaft coupling
Device（2）One end and motor（1）Drive shaft connection；
Transmission device includes power transmission shaft（3）, dust plug（4）, dust cap I（5）, angular contact bearing I（6）, pad（7）, angular contact
Bearing II（8）, bearing block（9）, dust cap II（10）, bearings disk（11）；Bearing block（9）Installed in sliding block（22）On, prevent
Dirt plug（4）, dust cap I（5）, angular contact bearing I（6）, pad（7）, angular contact bearing II（8）, dust cap II（10）It is arranged on
Bearing block（9）On, pad（7）Positioned at angular contact bearing I（6）, angular contact bearing II（8）Between, power transmission shaft（3）Installed in corner connection
Contact bearing I（6）, pad（7）, angular contact bearing II（8）, dust cap II（10）On, dust cap II（10）With power transmission shaft（3）, axle
Bearing（9）Front matches, power transmission shaft（3）One end and shaft coupling（2）It is connected, the other end and bearings disk（11）It is connected
Connect；
Experiment test device includes test thrust bearing（12）, centering trip bolt（13）, accelerate fatigue rolling ring（14）, sensor
Ⅰ（15）, sensor II（16）, sensor pocket storehouse（18）, soundproof rubber block（25）；Test thrust bearing（12）Side and bearing
Support plate（11）It is connected, tests thrust bearing（12）Opposite side installs the rolling ring that accelerates fatigue（14）And with sensor pocket storehouse
（18）It is connected, and passes through centering trip bolt（13）It is fixed, sensor pocket storehouse（18）The other end is connected with loading device, right
Middle trip bolt（13）, accelerate fatigue rolling ring（14）, soundproof rubber block（25）Storehouse is accommodated installed in bearing block（18）On, sensor
Ⅰ（15）, sensor II（16）Installed in sensor pocket storehouse（18）The interior and rolling ring that accelerates fatigue（14）Back is connected；
Loading device includes hydraulic cylinder（19）, foot stool（20）；Hydraulic cylinder（19）With sensor pocket storehouse（18）It is connected, foot stool
（20）With hydraulic cylinder（19）It is connected and is fixed on sliding block（22）On；
Track-type facilities include studs（21）, sliding block（22）, guide rail（23）；Guide rail（23）It is placed in ground, sliding block（22）It is logical
Cross studs（21）Installed in guide rail（23）On；
Overload safety device includes pin（17）, antioverloading ceiling（24）, floor（26）, thrust block（27）；Pin
（17）Perpendicular to hydraulic cylinder（19）Piston rod, pin（17）By sensor pocket storehouse（18）With hydraulic cylinder（19）Piston rod phase
Connection, antioverloading ceiling（24）By bearing block（9）With hydraulic cylinder（19）It is connected, floor（26）With bearing block（9）Back phase
Connection, thrust block（27）By motor（1）With bearing block（9）It is connected；
The bearing block（9）Back opens up grease lubrication groove provided with the symmetrical through hole of even number, top；Dust plug（4）With bearing
Seat（9）Backside vias matches；The dust cap I（5）Shape and bearing block（9）Open grease lubrication groove shape and match in top；
The centering trip bolt（13）Perpendicular to sensor pocket storehouse（18）Periphery tangent line.
2. strong load rolling bearing accelerated fatigue test device according to claim 1, it is characterised in that：The shaft coupling
（2）One end and motor（1）Drive shaft is by key or is connected through a screw thread；Power transmission shaft（3）One end and shaft coupling（2）By key or
It is connected by screw thread, the other end and bearings disk（11）It is connected by key or by screw thread；Test thrust bearing（12）
Side and bearings disk（11）It is connected by key or by screw thread；Floor（26）With bearing block（9）It is integrally machined or passes through
It is welded to connect.
3. strong load rolling bearing accelerated fatigue test device according to claim 1 or 2, it is characterised in that：It is described to add
Fast fatigue rolling ring（14）Be diameter, thickness, material and Technology for Heating Processing completely with test thrust bearing（12）The circle of rolling ring unanimously
Shape thin plate.
4. strong load rolling bearing accelerated fatigue test device according to claim 1 or 2, it is characterised in that：It is described to pass
Sensor accommodates storehouse（18）Provided with multiple line outlets, untapped line outlet is by soundproof rubber block（25）Sealing.
5. strong load rolling bearing accelerated fatigue test device according to claim 1 or 2, it is characterised in that：The liquid
Cylinder pressure（19）With pressure gauge and pressurizer.
6. strong load rolling bearing accelerated fatigue test device according to claim 1 or 2, it is characterised in that：It is described anti-
Overload protection bar（24）It is symmetrically installed in pairs with motor shaft, thrust block（27）It is symmetrically installed with motor shaft.
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| CN201510254360.9A CN104913933B (en) | 2015-05-19 | 2015-05-19 | A kind of strong load rolling bearing accelerated fatigue test device |
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| CN104913933B true CN104913933B (en) | 2017-09-12 |
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| CN105736584B (en) * | 2016-04-26 | 2018-02-23 | 东北石油大学 | One kind can isolate pressure and the interactional device of moment of torsion |
| CN109870305A (en) * | 2019-02-28 | 2019-06-11 | 昆明理工大学 | A kind of servo motor testing stand |
| CN115248119B (en) * | 2022-05-18 | 2023-06-20 | 武汉中誉鼎力智能科技有限公司 | Online detection device and detection method for defects of heavy-load low-speed bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005091212A (en) * | 2003-09-18 | 2005-04-07 | Nsk Ltd | Testing device for rolling bearing |
| JP2005315681A (en) * | 2004-04-28 | 2005-11-10 | Nsk Ltd | Bearing testing device |
| CN100443876C (en) * | 2006-07-13 | 2008-12-17 | 杭州轴承试验研究中心有限公司 | Reinforced test machine for rolling bearing life and reliability and its test method |
| CN101660970A (en) * | 2009-09-24 | 2010-03-03 | 浙江天马轴承股份有限公司 | Large bearing testing machine |
| CN101699242B (en) * | 2009-10-27 | 2011-07-27 | 苏州轴承厂有限公司 | Accelerated rolling bearing fatigue life tester |
| CN101957261B (en) * | 2010-04-21 | 2012-05-16 | 中国人民解放军国防科学技术大学 | Antifriction bearing multi-functional fatigue life test bed |
| CN201724818U (en) * | 2010-07-12 | 2011-01-26 | 张培君 | Accelerated rolling bearing fatigue life tester |
| CN202720122U (en) * | 2012-08-09 | 2013-02-06 | 浙江传媒学院 | Rolling bearing mute life tester |
| CN204286791U (en) * | 2014-12-25 | 2015-04-22 | 华东交通大学 | Bearing fatigue simulator stand |
| CN204679276U (en) * | 2015-05-19 | 2015-09-30 | 昆明理工大学 | A kind of strong load rolling bearing accelerated fatigue test device |
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