CN106644478B - A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously - Google Patents
A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously Download PDFInfo
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- CN106644478B CN106644478B CN201611217676.1A CN201611217676A CN106644478B CN 106644478 B CN106644478 B CN 106644478B CN 201611217676 A CN201611217676 A CN 201611217676A CN 106644478 B CN106644478 B CN 106644478B
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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
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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
- G01M13/045—Acoustic or vibration analysis
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Abstract
A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously, experimental rig used include pedestal, the setting square inner ring rotary system and outer ring rotary system for driving test bearing rotation on the base；Outer ring rotary system includes outer ring main shaft, is arranged on the main shaft of outer ring and accompanies examination bearing, axial force distribution bearing and bearing support；Inner ring rotary system includes inner ring main shaft, and axial force distribution bearing, bearing support and radial loaded bearing are arranged on inner ring main shaft；Axial force distribution device is provided on the outside of two axial force distribution bearings；Radial loading device is provided with above radial loaded bearing；It accompanies and is provided with sensor group above examination bearing；Experimental rig further includes lubricating system and measure and control device, and axial force distribution device, radial loading device, lubricating system are connected with measure and control device.The present invention provides the test method of a kind of cylinder roller bearing Internal and external cycle while rotation, in such a way that Internal and external cycle rotates simultaneously, and can effectively improve test speed.
Description
Technical field
The present invention relates to bearing test technical field, what specifically a kind of cylinder roller bearing Internal and external cycle rotated simultaneously
Test method.
Background technique
Bearing is widely used core mechanical basic part, is widely used in national economy and Defence business every field,
It is referred to as " industrial joint " in national economy middle (center) bearing.A kind of bearing product high as standardization, degree of specialization, work
Condition complicated condition sometimes can not necessarily reach actual requirement shape is made the same or even precision is made very high, it is necessary to
Having some special detection testing equipment simulation operating conditions to carry out test could examine whether it reaches required technical requirements.Therefore
In the R&D process of bearing, a link is very important to the test of bearing.
Bearing test methods in the prior art can be probably divided into three categories.First is that inner ring rotates and the examination of outer ring fixation
Proved recipe method, because most of operating mode of plain bearing is all inner ring rotation, outer ring is fixed, existing majority bearing examination
The machine of testing is all made of the test method；Second is that inner ring is fixed and the test method of outer ring rotating, such as Chinese patent
" CN201010254885.X " discloses a kind of " the fixed rolling bearing simulation experiment method of outer ring temperature of inner ring during rotation ", and emphasis passes through
Two aspects of speed and radial load test bearing；Third is that the test method that inner ring and outer ring rotates simultaneously, such as to boat
The intershaft bearing of empty engine is tested, but because this class bearing application is special, usage amount is few, and design difficulty
It is high with test difficulty therefore all fewer for the test method of this class bearing and testing machine in the prior art.
Summary of the invention
In order to solve deficiency in the prior art, the present invention provides the examination of a kind of cylinder roller bearing Internal and external cycle while rotation
Proved recipe method in such a way that Internal and external cycle rotates simultaneously, and can effectively improve test speed, to meet various different model circles
The test demand of column roller bearing.
To achieve the goals above, the present invention use the specific scheme is that
A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously, the experimental rig for the test method include
Pedestal further includes the setting inner ring rotary system of side's driving test bearing inner ring rotation and driving test bearing outer ring on the base
The outer ring rotary system of rotation, the centre of gyration line of inner ring rotary system and the centre of gyration line of outer ring rotary system are located at same
On straight line；The outer ring rotary system includes outer ring main shaft, one end axial restraint, the other end and the test bearing of outer ring main shaft
Outer ring be fixedly connected, in outer ring, the middle part of main shaft, which is also arranged with, accompanies examination bearing；The inner ring rotary system includes inner ring main shaft,
One end axial restraint, the other end of inner ring main shaft are fixedly connected with the inner ring of test bearing, are also arranged at the middle part of inner ring main shaft
There is radial loaded bearing；The support shaft playing supporting role is equipped on the axial restraint end of the outer ring main shaft and inner ring main shaft
It holds, the outer ring of two bearing supports passes through supporting shaft holder and is fixedly connected with the pedestal of experimental rig；In two bearing supports
Outside be equipped with the axial force distribution bearing for applying axial load to it, set between axial force distribution bearing and bearing support
It is equipped with the spacer for transmitting axial load, is provided with axial force distribution device on the outside of described two axial force distribution bearings；Institute
It states and is provided with radial loading device above radial loaded bearing；Described accompany is provided with sensor mount above examination bearing,
Noncontacting proximity sensor group is fixedly installed on sensor mount；The axial restraint end of the inner ring main shaft and outer ring main shaft is also
It is connect respectively by shaft coupling with variable-frequency motor；The experimental rig further includes lubricating system and control system, and the axial direction is applied
Power device, radial loading device, lubricating system are connected to the control system.
The specific steps of the test method are as follows:
It include inner ring revolving speed, outer ring in loading spectrum Step 1: setting loading spectrum according to the test needs of test bearing
Six revolving speed, lubricating oil oil mass, oil temperature supplying, test period and radial loaded power parameters；
Step 2: adjusting the steering of radial loaded power and variable-frequency motor in control system according to loading spectrum, first starting is moistened
Sliding system, starts variable-frequency motor afterwards；
Step 3: two variable-frequency motors drive inner ring main shaft and outer ring main shaft to rotate by shaft coupling respectively, and then drive
The inner ring and outer ring of test bearing rotates simultaneously, and according to loading spectrum, the output of control system adjust automatically radial loading device is carried
Lotus, radial loading device apply radial load to radial loaded bearing and are transferred to test bearing by inner ring main shaft；
Step 4: according to the revolving speed of inner ring main shaft and outer ring main shaft, two axial force distribution devices of control system adjust automatically
Output loads, the axial force distribution device bearing that exerts a force in the axial direction applies and load and is transferred to bearing support by spacer；
Step 5: being monitored by operating status of the noncontacting proximity sensor group to test bearing, monitoring information transmission
To control system；
Step 6: the content test of loading spectrum finishes, variable-frequency motor, inner ring main shaft and outer ring master is automatically closed in control system
Axis stops operating, off-test.
The axial force distribution bearing and bearing support are angular contact bearing, the radial loaded bearing and accompany examination bearing it is equal
For cylinder roller bearing.
The axial load that the axial force distribution device applies is uniformly distributed along the circumferencial direction of bearing support.
It is synchronized, different in the same direction in the same direction that described two variable-frequency motors drive inner ring main shaft and outer ring main shaft to do by shaft coupling respectively
The rotation of fast, reversed synchronized or reversed friction speed.
The outer ring of the radial loaded bearing is fixedly connected with bearing block, and the radial loading device passes through bearing block to diameter
Apply radial loaded power to load bearings.
The noncontacting proximity sensor group is by two temperature sensors, a vibrating sensor and a noise transducer group
At two temperature sensors are respectively used to the temperature of monitoring test bearing inner race and outer ring.
The temperature sensor is infrared temperature sensor, and vibrating sensor is electric vortex type vibrating sensor, and noise passes
Sensor is condenser pick-up.
The utility model has the advantages that
1, the inner ring and outer ring of bearing rotates simultaneously, according to the test adjustable variable-frequency motor of demand, makes inner ring and outer ring
Friction speed synchronized, in the same direction, reversed synchronized or reversed friction speed rotation in the same direction are done, to meet the test requirements document of different bearings；
2, fixing end uses angular contact bearing as bearing support, while axial force distribution bearing and axial force distribution device is arranged
Apply axial load to bearing support, so that bearing support is able to maintain stable operation, and then guarantee test machine is at biggish turn
(0 ~ 30000rpm) steady reliability service in fast range；
3, complete machine structure is simple and reliable, can meet a variety of internal-and external diameter cylinder roller bearing tests；
4, the position and structural relation of each section are optimized, can ensure that test bearing effectively loads in the biggish range of speeds
While even running.
Detailed description of the invention
Fig. 1 is experimental rig structural schematic diagram.
Appended drawing reference: 1, inner ring main shaft, 2, axial force distribution device, 3, axial force distribution bearing, 4, spacer, 5, bearing support,
6, radial loaded bearing, 7, test bearing, 8, accompany examination bearing, 9, outer ring main shaft, 10, radial loading device, 11, contactless biography
Sensor group, 12, sensor mount, 13, shaft coupling, 14, variable-frequency motor, 15, supporting shaft holder.
Specific embodiment
Embodiments of the present invention are illustrated below according to attached drawing.
As shown in Figure 1, the test method that a kind of cylinder roller bearing Internal and external cycle rotates simultaneously, the examination for the test method
Experiment device includes pedestal, further includes the setting inner ring rotary system of side's driving 7 inner ring of test bearing rotation and driving on the base
The outer ring rotary system of 7 outer ring rotating of test bearing, the revolution of the centre of gyration line and outer ring rotary system of inner ring rotary system
Center line is located on the same line；The outer ring rotary system includes outer ring main shaft 9, one end axial restraint of outer ring main shaft 9,
The other end is fixedly connected with the outer ring of test bearing 7, and in outer ring, the middle part of main shaft 9, which is also arranged with, accompanies examination bearing 8；The inner ring returns
Transfering from one department to another system includes inner ring main shaft 1, and one end axial restraint, the other end of inner ring main shaft 1 are fixedly connected with the inner ring of test bearing 7,
Radial loaded bearing 6 is also arranged at the middle part of inner ring main shaft 1；At the axial restraint end of the outer ring main shaft 9 and inner ring main shaft 1
On be equipped with the bearing support 5 playing supporting role, the outer ring of two bearing supports 5 passes through the pedestal of bearing block and experimental rig
It is fixedly connected；It is equipped with the axial force distribution bearing 3 for applying axial load to it in the outside of two bearing supports 5, in axis
To the spacer 4 being provided between force bearing 3 and bearing support 5 for transmitting axial load, described two axial force distribution bearings 3
Outside be provided with axial force distribution device 2；The top of the radial loaded bearing 6 is provided with radial loading device 10；It is described
It accompanies the top of examination bearing 8 to be provided with sensor mount 12, is fixedly installed noncontacting proximity sensor on sensor mount 12
Group 11；The axial restraint end of the inner ring main shaft 1 and outer ring main shaft 9 is also connect by shaft coupling 13 with variable-frequency motor 14 respectively；
The experimental rig further includes lubricating system and control system, the axial force distribution device 2, radial loading device 10, lube system
System is connected to the control system.
It is as a preferred embodiment, described because radial loaded bearing 6 and accompanying examination bearing 8 all without being subjected to axial load
Radial loaded bearing 6 and accompany examination bearing 8 be cylinder roller bearing.Similar, because axial force distribution bearing 3 and bearing support 5 are all
Need to bear axial load, as a preferred embodiment, the axial force distribution bearing 3 and bearing support 5 are angular contact bearing,
Middle bearing support 5 is for supporting spindle and makes main shaft axial limiting, and axial force distribution bearing 3 is then used for 5 transmission axle of bearing support
To load to guarantee 5 steady operation of bearing support.
Described two variable-frequency motors 14 respectively drive inner ring main shaft 1 and outer ring main shaft 9 does friction speed synchronized, in the same direction, anti-in the same direction
Rotation to synchronized or reversed friction speed.A variety of rotation modes are provided, the various operating conditions of test bearing 7 can be simulated,
Meet the test demand of different tests bearing 7.
The noncontacting proximity sensor group 11 is by two temperature sensors, a vibrating sensor and a noise transducer
Composition, two temperature sensors are respectively used to the temperature of 7 inner ring and outer ring of monitoring test bearing.The temperature sensor is infrared
Temperature sensor, vibrating sensor are electric vortex type vibrating sensor, and noise transducer is condenser pick-up.
In order to make bearing support 5 during test not generate vibration because load is unevenly distributed to try high speed
It tests result and causes deleterious effect, therefore the axial load that axial force distribution device 2 applies is along axial force distribution bearing 3 and bearing support
5 circumferencial direction is uniformly distributed.
In order to the operating status of real-time monitoring entirety, induction is respectively provided at the critical components such as axial force distribution device 2
Device, for monitoring the information such as temperature or vibration when each critical component is run.
The positional relationship of all parts is as follows:
It takes inner ring main shaft 1 and 13 connecting place of shaft coupling is a point, the first bearing support group is A point, radial loaded bearing 6 is B
Point, test bearing 7 be F point, accompany examination bearing 8 be C point, the second bearing support group is D point, outer ring main shaft 9 is connected with shaft coupling 13
Place is a ' point, then the positional relationship of each section may be expressed as:
BF=CF, AB=CD, aF=Da ', BF/AB=CF/CD=5.25, AB/aA=CD/Da '=2.47.
Through overtesting, the shafting setting optimized as described above can change while ensureing that test bearing effectively loads
The kind stress for accompanying examination bearing, radial loaded bearing, significantly improves natural frequency of shafting, ensure that complete machine runs smoothly, extend
The service life of whole device.
The specific steps of the test method are as follows:
It include inner ring revolving speed, outer ring in loading spectrum Step 1: setting loading spectrum according to the test needs of test bearing 7
Seven revolving speed, lubricating oil oil mass, oil temperature supplying, test period, radial loaded power and axially loaded power parameters；
Step 2: adjusting the steering of radial loaded power and variable-frequency motor 14 in control system according to loading spectrum, first starting
Lubricating system, it is rear to start variable-frequency motor 14；
Step 3: two variable-frequency motors 14 drive inner ring main shaft 1 and outer ring main shaft 9 to rotate by shaft coupling 13 respectively, into
And drive the inner ring and outer ring of test bearing 7 while rotating, the output loads of control system adjust automatically radial loading device 10,
Radial loading device 10 applies radial load to radial loaded bearing 6 and is transferred to test bearing 7 by inner ring main shaft 1；
Step 4: according to the revolving speed of inner ring main shaft 1 and outer ring main shaft 9, two axial force distribution dresses of control system adjust automatically
Set 2 output loads, the bearing 3 that exerts a force in the axial direction of axial force distribution device 2 applies load and is transferred to bearing support 5 by spacer 4；
Step 5: being monitored by operating status of the noncontacting proximity sensor group 11 to test bearing 7, pass through each key
The sensing device being arranged at component is monitored the operating status of each critical component, and monitoring information is transferred to control system
System；
Step 6: the content test of loading spectrum finishes, control system is automatically closed variable-frequency motor 14, inner ring main shaft 1 and outer
Circle main shaft 9 stops operating, off-test.
In other embodiments of the present invention, one of rotary system can be made motionless, only starts unilateral driving
Motor 14 and corresponding axial force distribution device 2, can individually test in the inner ring to test bearing 7 or outer ring, be applicable in model
It encloses more extensively.
Claims (7)
1. the test method that a kind of cylinder roller bearing Internal and external cycle rotates simultaneously, the experimental rig for the test method includes base
Seat further includes the setting inner ring rotary system of side's driving test bearing (7) inner ring rotation and driving test bearing (7) on the base
The outer ring rotary system of outer ring rotating, the centre of gyration line of inner ring rotary system and the centre of gyration line of outer ring rotary system are located at
On same straight line, it is characterised in that:
The outer ring rotary system includes outer ring main shaft (9), one end axial restraint, the other end and the test axis of outer ring main shaft (9)
The outer ring for holding (7) is fixedly connected, and in outer ring, the middle part of main shaft (9), which is also arranged with, accompanies examination bearing (8)；The inner ring rotary system packet
It including inner ring main shaft (1), one end axial restraint, the other end of inner ring main shaft (1) are fixedly connected with the inner ring of test bearing (7),
The middle part of inner ring main shaft (1) is also arranged with radial loaded bearing (6)；
The bearing support playing supporting role is equipped on the axial restraint end of the outer ring main shaft (9) and inner ring main shaft (1)
(5), the outer ring of two bearing supports (5) passes through supporting shaft holder (15) and is fixedly connected with the pedestal of experimental rig；At two
The axial force distribution bearing (3) for applying axial load to it is equipped on the outside of bearing support (5), in axial force distribution bearing
(3) spacer (4) for transmitting axial load is provided between bearing support (5), described two axial force distribution bearings (3)
Outside is provided with axial force distribution device (2)；
Radial loading device (10) are provided with above the radial loaded bearing (6)；The top setting for accompanying examination bearing (8)
Have sensor mount (12), noncontacting proximity sensor group (11) are fixedly installed on sensor mount (12)；
The axial restraint end of the inner ring main shaft (1) and outer ring main shaft (9) also passes through shaft coupling (13) and variable-frequency motor respectively
(14) it connects；
The experimental rig further includes lubricating system and control system, the axial force distribution device (2), radial loading device
(10), lubricating system is connected to the control system；
The specific steps of the test method are as follows:
Step 1: needing according to the test of test bearing (7), loading spectrum is set, is turned in loading spectrum comprising inner ring revolving speed, outer ring
Speed, lubricating oil oil mass, oil temperature supplying, test period and six parameters of radial loaded power；
Step 2: adjusting the steering of radial loaded power and variable-frequency motor (14) in control system according to loading spectrum, first starting is moistened
Sliding system, starts variable-frequency motor (14) afterwards；
Step 3: two variable-frequency motors (14) pass through shaft coupling (13) driving inner ring main shaft (1) and outer ring main shaft (9) rotation respectively
Turn, and then the inner ring and outer ring of test bearing (7) is driven to rotate simultaneously, according to loading spectrum, control system adjust automatically radially adds
The output loads for setting (10) are carried, radial loading device (10) applies radial load to radial loaded bearing (6) and passes through inner ring
Main shaft (1) is transferred to test bearing (7)；
Step 4: according to the revolving speed of inner ring main shaft (1) and outer ring main shaft (9), two axial force distribution dresses of control system adjust automatically
Set the output loads of (2), axial force distribution device (2) bearing (3) that exerts a force in the axial direction applies load and is transferred to branch by spacer (4)
Hold bearing (5)；
Step 5: being monitored by operating status of the noncontacting proximity sensor group (11) to test bearing (7), monitoring information is passed
It is defeated by control system；
Step 6: loading spectrum content test finish, control system is automatically closed variable-frequency motor (14), inner ring main shaft (1) and outside
Circle main shaft (9) stops operating, off-test.
2. the test method that a kind of cylinder roller bearing Internal and external cycle as described in claim 1 rotates simultaneously, it is characterised in that: institute
Stating axial force distribution bearing (3) and bearing support (5) is angular contact bearing, the radial loaded bearing (6) and accompany examination bearing (8)
It is cylinder roller bearing.
3. the test method that a kind of cylinder roller bearing Internal and external cycle as described in claim 1 rotates simultaneously, it is characterised in that: institute
The axial load for stating axial force distribution device (2) application is uniformly distributed along the circumferencial direction of bearing support (5).
4. the test method that a kind of cylinder roller bearing Internal and external cycle as described in claim 1 rotates simultaneously, it is characterised in that: institute
Two variable-frequency motors (14) are stated to do in the same direction at the same speed, together by shaft coupling (13) driving inner ring main shaft (1) and outer ring main shaft (9) respectively
Rotation to friction speed, reversed synchronized or reversed friction speed.
5. the test method that a kind of cylinder roller bearing Internal and external cycle as described in claim 1 rotates simultaneously, it is characterised in that: institute
The outer ring for stating radial loaded bearing (6) is fixedly connected with bearing block, and the radial loading device (10) passes through bearing block to radial direction
Load bearings (6) apply radial loaded power.
6. the test method that a kind of cylinder roller bearing Internal and external cycle as described in claim 1 rotates simultaneously, it is characterised in that: institute
It states noncontacting proximity sensor group (11) to be made of two temperature sensors, a vibrating sensor and a noise transducer, two
A temperature sensor is respectively used to the temperature of monitoring test bearing (7) inner ring and outer ring.
7. the test method that a kind of cylinder roller bearing Internal and external cycle as claimed in claim 6 rotates simultaneously, it is characterised in that: institute
Stating temperature sensor is infrared temperature sensor, and vibrating sensor is electric vortex type vibrating sensor, and noise transducer is capacitor
Formula sound pick-up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217676.1A CN106644478B (en) | 2016-12-26 | 2016-12-26 | A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217676.1A CN106644478B (en) | 2016-12-26 | 2016-12-26 | A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously |
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| CN106644478A CN106644478A (en) | 2017-05-10 |
| CN106644478B true CN106644478B (en) | 2019-04-05 |
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| CN201611217676.1A Active CN106644478B (en) | 2016-12-26 | 2016-12-26 | A kind of test method that cylinder roller bearing Internal and external cycle rotates simultaneously |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108225773A (en) * | 2018-02-10 | 2018-06-29 | 安徽摩格恩轴承有限公司 | Bear vibration heat generation detection device |
| CN109855870B (en) * | 2018-12-30 | 2020-08-21 | 洛阳轴承研究所有限公司 | Bearing test device |
| CN111855203B (en) * | 2019-04-08 | 2021-12-24 | 杭州盾航轴承技术有限公司 | Steering bearing dynamic durability test device |
| CN110411910A (en) * | 2019-08-02 | 2019-11-05 | 北京航空航天大学 | The scissoring vibration experimental provision of particulate matter |
| CN111896253B (en) * | 2020-07-31 | 2022-02-25 | 沈阳建筑大学 | Multifunctional low-temperature vacuum bearing test bench and test method |
| CN114720125B (en) * | 2022-04-08 | 2022-12-02 | 中南大学 | Multi-structure-size slewing bearing test bed and detection method |
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