CN106908243B - Bearing outer ring rotary test rig - Google Patents
Bearing outer ring rotary test rig Download PDFInfo
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- CN106908243B CN106908243B CN201710131908.XA CN201710131908A CN106908243B CN 106908243 B CN106908243 B CN 106908243B CN 201710131908 A CN201710131908 A CN 201710131908A CN 106908243 B CN106908243 B CN 106908243B
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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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- Acoustics & Sound (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of bearing outer ring rotary test rigs, including two bearing seats, are mounted in two bearing seats and the bearing shaft for installing test bearing, apply the loading device of radial load to bearing shaft and be recycled the oil supply system to test bearing and bearing shaft for lubricating oil；Driving lining and the driving mechanism for driving driving lining to rotate also are arranged on bearing shaft, the inner wall of driving lining is contradicted always on the outer ring of test bearing, test bearing is installed on bearing shaft, and bearing shaft is mounted on two bearing seats the state that remain stationary, test bearing is using the driving lining being set on bearing shaft as rotating member in actual work, and then realize that the outer ring for testing bearing is rotated and inner ring is fixed on bearing shaft, radial force is applied to bearing shaft secondly by loading device and carrys out radial load of the simulation test bearing suffered by actual condition, and oil supply system is combined to provide lubricating oil to test bearing, more appropriateness simulates actual condition, detection data is more accurate.
Description
Technical field
The present invention relates to a kind of bearing detecting device, in particular to a kind of bearing outer ring rotary test rig.
Background technique
Existing bearing is generally inner ring rotation in use, and outer ring is fixed, therefore most of bearing test is surveyed at present
Examination is generated some parameters in detection bearing inner race rotary course, and the bearing applied in particular application is outer
Enclose the bearing of the fixed such as installation described in some aero-engines of temperature of inner ring during rotation.Since these bearings are more special current
It is few that professional test is carried out to this kind of bearing, and how to simulate the actual applying working condition of bearing easily to be divided
Analysis, evaluation are current problems to be solved.
Summary of the invention
The object of the present invention is to provide a kind of bearing outer ring rotary test rigs, more easily realize in bearing outer ring rotation
Enclose non-rotary operating condition of test.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of bearing outer ring rotary test rig, including two bearing seats, be mounted in two bearing seats and for install test axis
The bearing shaft that holds applies the loading device of radial load to bearing shaft and is recycled to test bearing and bearing shaft for lubricating oil
Oil supply system；Driving lining and the driving mechanism for driving driving lining to rotate, institute are also arranged on the bearing shaft
The inner wall for stating driving lining is contradicted always on the outer ring of test bearing.
By using above-mentioned technical proposal, test bearing is installed on bearing shaft, and bearing shaft is mounted on two bearing seats
It is remain stationary state, test bearing is using the driving lining being set on bearing shaft as rotating member in actual work, in turn
It realizes that the outer ring for testing bearing is rotated and inner ring is fixed on bearing shaft, bearing shaft is applied secondly by loading device radial
Power carrys out radial load of the simulation test bearing suffered by actual condition, and oil supply system is combined to provide lubrication to test bearing
Oil, more appropriateness simulate actual condition, so that detection data is more accurate.
Preferably, the driving lining includes the belt pulley being wholely set on the outer wall, and the driving mechanism includes
Driving motor, the driving motor are connect by belt with belt pulley.
By using above-mentioned technical proposal, being integrally formed belt pulley directly in driving lining reduces the peace of exterior part
Dress, further simplifies structure and facilitates installation, secondly because belt pulley and the setting of driving lining integral type also improve biography
Efficiency of movement reduces the energy loss between component and component connection.
Preferably, the loading device include servo electric cylinders, be hinged on servo electric cylinders end and have one rotation
The transmission arm at center and it is hinged on transmission arm end and charging assembly parallel and heterodromous with servo electric cylinders, the load
Component includes that one end is hinged on bridging board on transmission arm, the fixed plate connecting with the bridging board other end and is mounted on fixed plate two
Hold and be fixed on the loading arm at bearing shaft both ends.
By using above-mentioned technical proposal, servo electric cylinders control transmission arm rotates around it center and is rotated, and transmission arm exists
It will drive bridging board when being rotated to be pulled along servo electric cylinders opposite direction level, while acting on load with two loading arms of drawing
Axis applies a radial force to test bearing again by bearing shaft, utilizes servo electric cylinders so that bearing shaft generates a radial force
Precision when loading is improved as power source, control precision can reach 0.01mm, and then improve test accuracy, and be easy
Connect with PLC dispatch control system, at the same also have the advantages that operating noise it is low, it is energy saving, cleaning, long service life, secondly utilize
Similar lever drive principle is simple in structure, and design cost is lower.
Preferably, the oil supply system includes fuel tank, the oil outlet pump and scavenge oil pump for being connected to fuel tank, described fuel-displaced
Pump is connected with the first fine filter, heating device and the second fine filter in turn, and second fine filter has been at least connected with
A piece flowline；The scavenge oil pump is connected with cooling fan, and the cooling fan is connected with oil return pipe.
By using above-mentioned technical proposal, lubricating oil is stamped to pass through the first smart mistake first out of fuel tank using oil outlet pump
Filter filters out the suspended particulate of the overwhelming majority, then carries out lubricating oil after filtering by heating device to be thermally formed high temperature
Lubricating oil, for simulating the operating condition of actual tests bearing, high temperature grease again from heating device come out after using the second smart mistake
Filter removes the suspended particulate taken out of from heating device and impurity guarantees the degree of purity of lubricating oil, finally from high temperature lubricating
Oil comes out from flowline and is input in bearing tester；Secondly the lubricating oil come out from bearing tester passes through oil return pipe first
Cooled down using cooling fan, return in fuel tank and reused finally by scavenge oil pump, this ensure that bearing tries
Machine constantly lasting fuel feeding at work is tested, so that the data tested out are more accurate.
Preferably, there are spaces to form the work for accommodating test bearing between the driving lining and bearing shaft
Chamber, the working chamber include the oil suction chamber and oil back chamber being mutually conducted, and the flowline is connected to oil suction chamber, the oil return pipe
It is connected to oil back chamber.
By using above-mentioned technical proposal, high temperature grease comes out from flowline and enters in oil suction chamber, then from oil suction chamber
The circulation for flowing back into fuel tank in oil back chamber finally by oil return pipe and realizing oil circuit is entered, bearing tester is avoided and is working
Shi Fasheng fuel feeding not in time the problem of, more fitting actual condition, improve the test accuracy of testing machine.
Preferably, the oil inlet passage being connected to oil suction chamber is offered in the bearing seat respectively and is connected with oil back chamber
Logical drainback passage, the flowline and oil return pipe are both secured on bearing seat, and flowline is connected to oil inlet passage, oil return pipe
It is connected to drainback passage.
By using above-mentioned technical proposal, high temperature grease can enter in oil inlet passage first when entering oil suction chamber
Component outside place's test bearing is lubricated, and entire bearing tester is made be in the operating condition of practical bearing, next oil inlet
Certain metering function is played as the channel before entering oil suction chamber in channel, and the lubricating oil of high pressure-temperature is avoided to enter oil suction chamber
The interior work for influencing test bearing, same high temperature and pressure lubricating oil can play current limliting work before oil return box by drainback passage
With to protect entire oil supply system.
Preferably, the both ends of the driving lining are respectively and fixedly provided with load seat, lead between the load seat and bearing seat
Spring bearing connection is crossed, oil inlet damp channel and oil return damp channel are offered on the load seat, the oil inlet damping is logical
Road is respectively communicated with oil inlet passage and oil suction chamber, and the oil return damp channel is respectively communicated with drainback passage and oil back chamber.
By using upper technical solution, the oil inlet damp channel and oil return damp channel opened up on load seat plays limit
Stream effect, it is further to reduce lubricating oil and cause impact to influence and from oil return test bearing being passed into oil suction chamber
Chamber comes out the influence to oil supply system.
Preferably, the secondary oil inlet passage being connected to oil suction chamber, the flowline are also provided with inside the bearing shaft
Also it is connected to secondary oil inlet passage.
By using above-mentioned technical proposal, the setting of secondary oil inlet passage enables lubricating oil directly from the inside of bearing shaft
It enters in oil suction chamber, it is actual that the speed for accelerating lubricating oil early period to enter in oil suction chamber is rapidly introduced into test bearing
In operating condition；Secondly it can also play the role of aerial drainage, the lubricating oil in oil suction chamber can be discharged from secondary oil inlet passage, occur promptly
It can better protection test machine when situation.
Preferably, the bearing shaft radially offers the first mounting hole, institute on the construction section of corresponding test bearing
It states to be provided with the first vibrating sensor in the first mounting hole and the first vibrating sensor is forced to have always and is detached from the first installation
First elastic component of hole movement tendency is fixed with the second vibrating sensor on the bearing seat, second vibrating sensor
Inductive probe contradicts on bearing shaft.
By using above-mentioned technical proposal, the first vibrating sensor is directly installed on that bearing shaft is radially opened up
Additional fastener is eliminated in one mounting hole, facilitates installation first；Secondly the positive benefit in the position opened up of the first mounting hole
In on the construction section of test bearing, so that the first vibrating sensor is directly contradicted in test axis after test bearing is installed to bearing shaft
On the inner ring held, and using be mounted in the first mounting hole the first elastic component effect keep the first vibrating sensor always with
The inner ring of test bearing contradicts, and directly obtains the vibration analysis bands of a spectrum of test bearing high band, reduces intermediate energy transmission
It is lost caused by described, directly carries out vibration measurement to detect test axis indirectly bearing shaft furthermore with the second vibrating sensor
The vibration parameters held obtain the vibrational band of low-frequency range, and the two, which is combined with each other to be analyzed, is further substantially improved detection
Precision.
Preferably, the bearing shaft is also radial on the construction section of corresponding test bearing offers and the first mounting hole
Second mounting hole of connection, the second mounting hole radial communication is in passing channel and is provided in the second mounting hole temperature and passes
Sensor is additionally provided in second mounting hole and forces temperature disturbance sensor to have always to be detached from the second mounting hole movement tendency
The second elastic component.
By using above-mentioned technical proposal, temperature sensor contradicts it always using the effect of the second elastic component to test
Temperature detection is carried out to test bearing on the inner ring of bearing, similarly reduces intermediate transfer link, and monitoring bearing works
When temperature convenient for adjusting the oil temperature of lubricating oil so that entire operating condition keeps a stable state, so that test data is more
Accurately.
In conclusion the invention has the following advantages:
1, it is contradicted by the outer ring of the driving lining and test bearing that are set on test bearing, utilizes driving motor band
It is dynamic, and the inner ring of test bearing is fixed on the bearing shaft remaining stationary realizes the motionless base of test bearing outer ring rotating inner ring
Plinth requirement, and the operating condition of practical bearing is simulated by the way that loading device and oil supply system is arranged；
2, control precision when loading device improves load as power source using servo electric cylinders, in addition driving lining one
The belt pulley of body setting on the outer wall improves transmission accuracy, secondly by the institute in bearing seat, load seat and driving lining
It states the circulating oil path opened up and entirely improves test accuracy, operating condition ideally can be reached；
3, directly test bearing is carried out by the first vibrating sensor and temperature sensor that are arranged in bearing shaft
Monitoring, test point and fixed form are most perfect condition, obtain more accurate oscillometry bands of a spectrum, secondly cooperation second
Vibrating sensor is monitored the vibration of bearing shaft, obtains the analytical spectra band of test bearing low-frequency band, and the two combines to obtain
More accurate data parameters.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of bearing outer ring rotary test rig；
Fig. 2 is the structural schematic diagram of loading device；
Fig. 3 is the top view of loading device；
Fig. 4 is the cross-sectional view of each main element of bearing outer ring rotary test rig；
Fig. 5 is the schematic view of the mounting position of the first vibrating sensor, temperature sensor.
In figure: 10, oil supply system；11, fuel tank；12, oil outlet pump；13, scavenge oil pump；14, the first fine filter；15, overflow
Valve；16, bucket is heated；17, heating rod；18, the second fine filter；19, cooling fan；20a, fuel-displaced general pipeline；20b, oil return general pipeline；
21, the first flow divider；21a, the first oil outlet branch pipe；21b, the second oil outlet branch pipe；22, the second flow divider；22a, oil returning branch pipe；
30, testing stand；40, bearing seat；41, oil inlet passage；42, drainback passage；43, plug cock；50, bearing shaft；50a, oil suction chamber；50b,
Oil back chamber；51, the first shaft part；52, construction section；521, the first mounting hole；522, the second mounting hole；53, the second shaft part；54, secondary
Oil inlet passage；55, secondary oil inlet；56, passing channel；60, driving motor；61, belt；70, loading device；71, servo electric cylinders；
72, transmission arm；73, bridging board；731, tension sensor；74, fixed plate；75, loading arm；76, hinged seat；761, hinge column；
80, driving lining；81, belt pulley；82, load seat；821, oil inlet damp channel；822, oil return damp channel；823, stop collar；
83, axle sleeve；84, limit base；90, test bearing；100, spring bearing；200, the first vibrating sensor；210, the first elastic component；
220, the first bolster；300, temperature sensor；310 second elastic components；320, the second bolster；400, the second vibrating sensing
Device；500, conducting wire.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Referring to Fig. 1 and Fig. 2, a kind of bearing outer ring rotary test rig, including oil supply system 10, trial body and load dress
70 are set, wherein oil supply system 10, which is used to recycle to trial body, provides lubricating oil.Trial body includes a testing stand 30, is being tested
There is the bearing seat 40 of certain intervals there are two fixing on platform 30, a bearing shaft 50 is installed, and should between two bearing seats 40
Bearing shaft 50 remain stationary state relative to two bearing seats, and loading device 70 is used to apply a radial load to the bearing shaft 50
Lotus.
Referring to fig. 4, it includes first shaft part 51 at middle part, adjacent to 51 two sides of the first shaft part that bearing shaft 50, which is multistage multi-diameter shaft,
Construction section 52 and adjacent construction section 52 the second shaft part 53,53 diameter of the first shaft part 51, construction section 52 and the second shaft part
It is sequentially reduced, is mounted on test bearing 90 on two construction sections 52.
On bearing shaft 50 and cylindrical circular driving lining 80, the inner wall of driving lining 80 are contradicted always in two test axis
It holds on 90 outer ring, wherein driving lining 80 carries out being arranged installation by the way of expanding with heat and contract with cold.The both ends of driving lining 80 are also
It is connected with load seat 82, which is installed on the second shaft part 53 of bearing shaft 50, including from one end towards test bearing
90 extend stop collars 823, the stop collar 823 contradict in the end face outside of 90 outer ring of test bearing, this external applied load seat 82 with
And the partial receipt of driving lining 80 is provided with spring bearing 100 in bearing seat 40 between load seat 82 and bearing seat 40,
Load seat 82 is rotated relative to bearing seat 40.
In addition an axle sleeve 83 is additionally provided in driving lining 80, the outer wall of the axle sleeve 83 is tightly attached to the interior of driving lining 80
Wall, and the both ends of axle sleeve 83 contradict on the inner side end of 90 outer ring of test bearing.
It is also arranged with limit base 84 on the construction section 52 of bearing shaft 50, for adjusting test bearing 90 on construction section 52
One end face of position, limit base 84 contradicts on the inner side end of 90 inner ring of test bearing, and other end is contradicted in construction section 52
It is formed by cascaded surface with the first shaft part 51.
In conjunction with Fig. 1 and Fig. 4, driving lining 80 further includes the belt pulley 81 being wholely set on the outer wall；In testing stand 30
Driving motor 60 is provided on bottom, which is attached by belt 61 with driving lining 80, and then drives lining
Set 80 can be rotated under the drive of driving motor 60.
Between driving lining 80 and bearing shaft 50 formed a cricoid working chamber, the working chamber include mutually be conducted into
Oil pocket 50a and oil back chamber 50b, the upper space oil back chamber 50b that wherein oil suction chamber 50a is located at bearing shaft 50 are in bearing shaft 50
Lower space, and the lubricating oil in the oil suction chamber 50a can enter under the effect of gravity in oil back chamber 50b.
The a plurality of oil inlet passage 41 being mutually conducted and a plurality of oil return being mutually conducted are offered in the inside of bearing seat 40
Channel 42 offers the oil inlet damp channel 821 that oil inlet passage 41 is connected with oil suction chamber 50a inside load seat 82, and will
The oil return damp channel 822 that drainback passage 42 is connected with oil back chamber 50b, be furthermore also provided on a side end face of bearing seat 40 into
Hydraulic fluid port and oil return opening, the oil inlet are connected to oil inlet passage 41, and oil return opening is connected to drainback passage 42.
Above-mentioned oil supply system 10 includes the oil outlet pump 12 and scavenge oil pump 13 of a fuel tank 11 and connection fuel tank 11, fuel-displaced
Pump 12 has also been sequentially communicated the first fine filter 14, overflow valve 15, heating device and the second fine filter 18, wherein heating dress
It sets including heating bucket 16 and more heating rods 17 being detachably connected in heating bucket 16.Effect of the lubricating oil in oil outlet pump 12
Under the last fuel-displaced general pipeline 20a output connected by the second fine filter 18 is pumped from fuel tank 11, furthermore this is fuel-displaced total
Pipe 20a is connected with the first flow divider 21, and two first oil outlet branch pipe 21a and one is also connected on the first flow divider 21
Two oil outlet branch pipe 21b, wherein two first oil outlet branch pipe 21a respectively correspond be mounted on two bearing seat end faces it is described open up into
Hydraulic fluid port enables lubricating oil to enter from oil inlet end.An other second oil outlet branch pipe 21b is connected on bearing shaft 50, negative
The inside for carrying axis 50 axially offers secondary oil inlet passage 54, and the second oil outlet branch pipe 21b is just connected to secondary oil inlet passage 54 wherein
One opening, and another opening of secondary oil inlet passage 54 is blocked by plug cock 43；Diameter is gone back on the first shaft part 51 of bearing shaft 50
To secondary oil inlet 55 is offered, secondary oil inlet 55 is connected to secondary oil inlet passage 54, at the same the pair oil inlet 55 also with oil suction chamber 50a
Connection.Entirety realizes threeway oil inlet design and improves oil inlet speed.
To protect the safety of oil inlet oil circuit to be additionally provided with temperature sensor 300 and pressure sensing on the first flow divider 21
Device is monitored.
Two oil returning branch pipe 22a are also respectively connected in two oil return openings on bearing seat, similarly in drainback passage 42
Wherein one end is in communication with the outside, and is blocked by plug cock 43, convenient urgent unloading.And two oil returning branch pipe 22a converge into second
In flow divider 22, and by carrying out oil return with an oil return general pipeline 20b of the second flow divider 22, oil return general pipeline 20b is logical first
Enter into cooling fan 19, is returned in fuel tank 11 eventually by scavenge oil pump 13.
It is also radial on two construction sections 52 of bearing shaft 50 to offer the first mounting hole 521 and second referring to fig. 4 with Fig. 5
Mounting hole 522, the first mounting hole 521 is mutually conducted with the second mounting hole 522, and the two is counter sink, in the first mounting hole
First vibrating sensor 200 is installed in 521, while being provided with the first elastic component 210 in the first mounting hole 521, the first vibration
Dynamic sensor 200 has under the action of the first elastic component 210 always toward the trend for being detached from the movement of 521 side of the first mounting hole,
So that first sensor is contradicted with the inner ring of test bearing 90 always.Furthermore is provided on the inner wall of the first mounting hole 521
One bolster 220, the first bolster 220 wrap up the outer wall of the first vibrating sensor 200.
Temperature sensor 300 is installed in second mounting hole 522, is similarly also equipped in the second mounting hole 522
Two elastic components 310, temperature sensor 300 have under the action of the second elastic component 310 always toward the second mounting hole 522 1 of disengaging
The trend of side movement, and the second bolster 320 is provided at the inductive head of temperature sensor 300, so that the second bolster
320 contradict always on the inner ring of test bearing 90.
The first elastic component 210 and the second elastic component 310 in special the present embodiment are all made of compressed spring, the first buffering
Part 220 and the second bolster 320 are rubber pad or silicagel pad.
The inside of bearing shaft 50 is provided in the axial direction with passing channel 56 from an end face, the passing channel 56 respectively with first,
The conducting wire 500 of the connection of second mounting hole 521,522, the first vibrating sensor 200 and temperature sensor 300 can be each passed through
Passing channel 56 facilitates wiring in turn.
Furthermore the second vibrating sensor 400 is also respectively fixed on two bearing seats 40, two second vibrating sensors 400
Inductive probe contradicts on bearing shaft 50.
Referring to fig. 2 with Fig. 3, loading device 70 includes the servo electric cylinders 71 for being fixed on 30 bottom of testing stand, the servo electric cylinders
71 are connected with transmission arm 72, wherein the top for partially passing through testing stand 30 and being placed in testing stand 30 of transmission arm 72；In testing stand
Hinged seat 76 is further fixed on 30, transmission arm 72 is rotatably connected on hinged seat 76 by hinge column 761.Transmission arm 72 is in
One end of hinged seat 76 is also hinged with bridging board 73, and the end of bridging board 73 is connected with fixed plate 74, fixed plate 74 and bridging board
Middle position of the 73 orthogonal and tie points that bridging board 73 is in fixed plate 74 just at fixed plate 74.Fixed plate 74
Both ends are additionally provided with loading arm 75, and both ends of two loading arms 75 respectively with bearing shaft 50 are fixed.Wherein bridging board 73, fixed plate 74
And two loading arm 75 it is just opposite with the transmission direction of servo electric cylinders 71.
Tension sensor 731 is additionally provided on bridging board 73, for preferably monitoring loading force.
Before test carries out, need to adjust position of two test bearings 90 on construction section 52 by limit base 84, so that driving
81 central plane of belt pulley on bushing 80 is moved just at the middle position of two test bearings, 90 line of centres, and then tests axis
Hold 90 driving lining 80 drive lower stress it is more uniform.
When test, the work of driving motor 60 drives driving lining 80 to be rotated by belt 61, and driving lining 80 is the same as load
Lotus seat 82 is rotated together, while two test bearings 90 being driven to be rotated, and the limit of bearing shaft 50 is in two bearing seats 40
Opposite illegal state is kept, and then realizes the operating condition of test that 90 outer ring rotating inner ring of test bearing does not rotate；Lubricating oil simultaneously
Shunted first using after heating from fuel-displaced general pipeline 20a, wherein two-way is passed through the oil inlet passage 41 of bearing seat 40, and into
It is passed into after the metering function in oil damping channel 821 in oil suction chamber 50a, secondary oil inlet passage 54 of the another way diameter from bearing shaft 50
It is driven into oil suction chamber 50a, lubricating oil enters in oil back chamber 50b from oil suction chamber 50a under gravity, passes sequentially through back
Oil damping channel 822, drainback passage 42 are finally discharged using two oil returning branch pipe 22a, then return fuel tank 11 after cooling
It is interior, realize circulation fuel feeding effect.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (5)
1. a kind of bearing outer ring rotary test rig, which is characterized in that including two bearing seats (40), be mounted in two bearing seats (40)
And for install test bearing (90) bearing shaft (50), to bearing shaft (50) apply radial load loading device (70) and
It is recycled the oil supply system (10) to test bearing (90) and bearing shaft (50) for lubricating oil；The bearing shaft (50) includes middle part
The first shaft part (51) and construction section adjacent to the first shaft part (51) two sides, test bearing (90) be installed on construction section (52)
Locate, driving lining (80) and the driving machine for driving driving lining (80) to rotate also are arranged on the bearing shaft (50)
The inner wall of structure, the driving lining (80) is contradicted always on the outer ring of two test bearings (90)；
The loading device (70) include servo electric cylinders (71), be hinged on servo electric cylinders (71) end and have a center of rotation
Transmission arm (72) and be hinged on transmission arm (72) end and charging assembly parallel and heterodromous with servo electric cylinders (71),
The charging assembly includes the fixation that one end is hinged on bridging board (73) on transmission arm (72), connect with bridging board (73) other end
It plate (74) and is mounted on fixed plate (74) both ends and is fixed on the loading arm (75) at bearing shaft (50) both ends；
The oil supply system (10) includes fuel tank (11), the oil outlet pump (12) and scavenge oil pump (13) for being connected to fuel tank (11), institute
It states oil outlet pump (12) and is connected with the first fine filter (14), heating device and the second fine filter (18) in turn, described second
Fine filter (18) has been at least connected with a flowline；The scavenge oil pump (13) is connected with cooling fan (19), the cooling wind
Fan (19) is connected with oil return pipe；There are spaces to be formed for accommodating test axis between the driving lining (80) and bearing shaft (50)
The working chamber of (90) is held, the working chamber includes the oil suction chamber (50a) and oil back chamber (50b) being mutually conducted, the flowline
It is connected to oil suction chamber (50a), the oil return pipe is connected to oil back chamber (50b)；
The oil inlet passage (41) and and oil back chamber being connected to oil suction chamber (50a) are offered respectively in the bearing seat (40)
The drainback passage (42) of (50b) connection, the flowline and oil return pipe are both secured on bearing seat (40), and flowline and oil inlet
Channel (41) connection, oil return pipe are connected to drainback passage (42)；
The both ends of the driving lining (80) are respectively and fixedly provided with load seat (82), are led between the load seat (82) and bearing seat (40)
Spring bearing (100) connection is crossed, offers oil inlet damp channel (821) and oil return damp channel on the load seat (82)
(822), the oil inlet damp channel (821) is respectively communicated with oil inlet passage (41) and oil suction chamber (50a), and the oil return damping is logical
Road (822) is respectively communicated with drainback passage (42) and oil back chamber (50b)；Wherein,
The load seat (82) includes the stop collar (823) extended from one end towards test bearing (90), which supports
Touching is additionally provided with an axle sleeve (83), the axle sleeve in the driving lining (80) in the end face outside of test bearing (90) outer ring
(83) outer wall is tightly attached to the inner wall of driving lining (80), and the both ends of axle sleeve (83) are contradicted in the interior of test bearing (90) outer ring
On side end face, also it is arranged with limit base (84) on the construction section (52) of the bearing shaft (50), an end face of limit base (84) is supported
On the inner side end of test bearing (90) inner ring, other end contradicts and is formed in construction section (52) and the first shaft part (51) for touching
Cascaded surface on.
2. bearing outer ring rotary test rig according to claim 1, which is characterized in that the driving lining (80) includes one
The belt pulley (81) of body setting on the outer wall, the driving mechanism includes driving motor (60), and the driving motor (60) passes through
Belt (61) is connect with belt pulley (81).
3. bearing outer ring rotary test rig according to claim 1, which is characterized in that also opened inside the bearing shaft (50)
Equipped with the secondary oil inlet passage (54) being connected to oil suction chamber (50a), the flowline is also connected to secondary oil inlet passage (54).
4. bearing outer ring rotary test rig according to claim 1, which is characterized in that the bearing shaft (50) is to examination
It tests on the construction section (52) of bearing (90) and radially offers the first mounting hole (521), be provided in first mounting hole (521)
First vibrating sensor (200) and force always the first vibrating sensor (200) have be detached from the first mounting hole (521) movement
The first elastic component (210) of trend is fixed with the second vibrating sensor (400) on the bearing seat (40), second vibration
The inductive probe of sensor (400) contradicts on bearing shaft (50).
5. bearing outer ring rotary test rig according to claim 4, which is characterized in that the bearing shaft (50) is to examination
It tests and also radially offers the second mounting hole (522) being connected to the first mounting hole (521), institute on the construction section (52) of bearing (90)
It states the second mounting hole (522) radial communication and is provided with temperature sensor in passing channel (56) and in the second mounting hole (522)
(300), it is additionally provided in second mounting hole (522) and forces temperature disturbance sensor that there is the second mounting hole of disengaging always
(522) the second elastic component (310) of movement tendency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131908.XA CN106908243B (en) | 2017-03-07 | 2017-03-07 | Bearing outer ring rotary test rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710131908.XA CN106908243B (en) | 2017-03-07 | 2017-03-07 | Bearing outer ring rotary test rig |
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| Publication Number | Publication Date |
|---|---|
| CN106908243A CN106908243A (en) | 2017-06-30 |
| CN106908243B true CN106908243B (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710131908.XA Active CN106908243B (en) | 2017-03-07 | 2017-03-07 | Bearing outer ring rotary test rig |
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| Publication number | Priority date | Publication date | Assignee | Title |
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