CN109540518A - Petrochemical industry unit bearing failure diagnosis and residual service life prediction device and its control circuit - Google Patents
Petrochemical industry unit bearing failure diagnosis and residual service life prediction device and its control circuit Download PDFInfo
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- CN109540518A CN109540518A CN201811343343.2A CN201811343343A CN109540518A CN 109540518 A CN109540518 A CN 109540518A CN 201811343343 A CN201811343343 A CN 201811343343A CN 109540518 A CN109540518 A CN 109540518A
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- 238000012360 testing method Methods 0.000 claims abstract description 58
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- 238000005096 rolling process Methods 0.000 claims abstract description 32
- 239000002828 fuel tank Substances 0.000 claims abstract description 28
- 230000008878 coupling Effects 0.000 claims abstract description 19
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- 239000003921 oil Substances 0.000 claims description 67
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 26
- 238000012545 processing Methods 0.000 claims description 22
- 238000009826 distribution Methods 0.000 claims description 9
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- 239000000446 fuel Substances 0.000 claims description 3
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- G—PHYSICS
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- 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
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Abstract
The present invention discloses petrochemical industry unit bearing failure diagnosis and residual service life prediction device, including main motor, first yielding coupling, gearbox, second yielding coupling, transmission mechanism, Bearning mechanism, radial loaded mechanism, axially loaded mechanism, recycle fuel tank, temperature sensor, acceleration transducer, early warning and monitoring device, main motor is connected by the first yielding coupling with gearbox, gearbox is connected by the second yielding coupling with transmission mechanism, transmission mechanism is connected with Bearning mechanism, Bearning mechanism is connected with circulation fuel tank, temperature sensor, acceleration transducer is connected with early warning and monitoring device, radial loaded mechanism couples the side for being set to Bearning mechanism with axially loaded mechanism respectively, oil pump motor is provided on circulation fuel tank.The present invention also proposes the control circuit of petrochemical industry unit bearing failure diagnosis and residual service life prediction device, realizes the design function of the abnormal inordinate wear for shaking and excluding bearing during the load test of rolling bearing.
Description
Technical field
The present invention relates to petrochemical industry unit bearing failure diagnosis and residual service life prediction device and its control circuit, belong to equipment
Forecasting technique in life span field.
Background technique
In petrochemical industry, the structure of rotating machinery becomes to become increasingly complex with composition.Currently, petrochemical industry unit
Enlargement, high speed, automation are increasingly tended to, in rotary machinery fault diagnosis, signal processing, pattern-recognition, artificial intelligence
The methods of energy substantially increases the stability and safety of industrial system.But the environment as locating for petrochemical industry unit is more multiple
Miscellaneous, there are many factor for influencing scene, have the characteristics that biggish uncertainty.In rotating machinery, the application of rolling bearing is the most
Extensively, and easily one of the part to break down.The generation of rolling bearing fault can not only reduce the stability of unit, seriously
Failure also bring along it is unexpected shut down and the events such as personal injury, seriously affect industrial production operation.Therefore, carry out petrochemical industry machine
The fault diagnosis of group rolling bearing and the prediction of remaining life, and reasonable maintenance program is specified in advance, have very important
Reality and theory significance.
Existing Rolling Bearing Testing Machine structure focuses on the being completely embedded property of rolling bearing test structure, lacks to the axis of rolling
It holds the protection of the abnormal vibration and inordinate wear during the load test of test structure and excludes design function.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, petrochemical industry unit bearing failure diagnosis is provided
With residual service life prediction device and its control circuit.
In order to solve the above technical problems, the present invention provides petrochemical industry unit bearing failure diagnosis and residual service life prediction device,
It is characterised in that it includes main motor, the first yielding coupling, gearbox, the second yielding coupling, transmission mechanism, bearing machine
Structure, radial loaded mechanism, axially loaded mechanism, circulation fuel tank, temperature sensor, acceleration transducer, early warning and monitoring device, it is main
Motor is connected by the first yielding coupling with gearbox, and gearbox passes through the second yielding coupling and transmission mechanism phase
Even, transmission mechanism is connected with Bearning mechanism, and Bearning mechanism is connected with circulation fuel tank, and temperature sensor, acceleration transducer are equal
It is connected with early warning and monitoring device, radial loaded mechanism couples the side for being set to Bearning mechanism with axially loaded mechanism respectively,
Oil pump motor is provided on circulation fuel tank.
As a kind of preferred embodiment, Bearning mechanism is internally provided with test mandrel, fourth officer test bearing, upper and lower right
Claim the inordinate wear protection mechanism of distribution, test bearing cooperation nesting is set on test mandrel, between two secondary test bearings
Isolation inner bushing ring is provided in gap, isolation inner bushing ring cooperation is set on test mandrel, the inside of inordinate wear protection mechanism
It is fixedly installed the mechanical arm executing agency of symmetrical distribution, the inner end of mechanical arm executing agency is equipped in isolation
On the outer surface of grommet, the outer end of inordinate wear protection mechanism is provided with for fastening and the hinged seat of up and down adjustment, test core
The left and right end portions of axis are arranged with the locking nut matched, and the gap location between adjacent two secondary test bearings is provided with gear and tears pad open
Piece.
As a kind of preferred embodiment, mechanical arm executing agency includes the liner guarantor of longitudinal bar member, bilateral symmetry distribution
Protecting block, liner protection block are fixedly installed on the inner end of longitudinal bar member, and the medial surface of liner protection block is provided with semicircular rotation
Turn cooperation sliding slot, mechanical arm executing agency is cooperated with the outer surface rotational slide that inner bushing ring is isolated by rotatable engagement sliding slot and connected
It connects.
As a kind of preferred embodiment, the outer concave slide groove being recessed outward is provided on the inside of inordinate wear protection mechanism.
As a kind of preferred embodiment, fault diagnosis and residual service life prediction device further include pedestal, main motor, speed change
Case, Bearning mechanism are each attached on pedestal.
As a kind of preferred embodiment, the bottom of fault diagnosis and residual service life prediction device is provided with big pedestal, small
Pedestal, connection pedestal, circulation fuel tank are fixed on big pedestal by small footprint, and early warning and monitoring device is solid by connection pedestal
It is scheduled on big pedestal.
As a kind of preferred embodiment, the side of radial loaded mechanism is additionally provided with radial pressure transmitter, radial storage
Energy device, radial control valve, pressure gauge with bottom connection, radial loaded mechanism and radial pressure transmitter, radial accumulator, radial control valve
It is connected, pressure gauge with bottom connection is set between radial pressure transmitter and radial accumulator；The side of lateral loading mechanism is also set
It is equipped with lateral accumulator, axial compressive force transmitter, pressure gauge with back connection, axial control valve, lateral loading mechanism and axial compressive force become
Send device, lateral accumulator, axial control valve to be connected, pressure gauge with back connection be set to axial compressive force transmitter and lateral accumulator it
Between.
As a kind of preferred embodiment, frequency converter, frequency conversion are additionally provided on fault diagnosis and residual service life prediction device
Device is connected with main motor；Circulation fuel tank is additionally provided with check valve, pressure gauge, range meter, and oil pump motor passes through recycle oil
Case, check valve, oil inlet pipe are connected with Bearning mechanism, and oil pump motor is connected by circulation fuel tank, flowline with Bearning mechanism
It is logical.
As a kind of preferred embodiment, rolling bearing pumping is additionally provided in fault diagnosis and residual service life prediction device
Drawer, test axis drawer, tool box, radiator；Be additionally provided in fault diagnosis and residual service life prediction device master switch, master it is electronic
Machine start key, main motor stop key, oil pump motor start key, oil pump motor stop key, reset key, rapid stop key, are always opened
Pass is connected with motor start-up key, oil pump motor start key respectively, main motor start key, main motor stop key difference
It is connected with main motor, oil pump motor start key, oil pump motor stop key are connected with oil pump motor respectively, reset
Key is connected with master switch, and rapid stop key is connected with main motor, oil pump motor respectively.
As a kind of preferred embodiment, early warning and monitoring device includes the preposition processing module of signal, data collector, data
Server, PLC controller, memory, display, intelligence printer, acceleration transducer, temperature sensor are respectively and before signal
Processing module is set to be connected, the preposition processing module of signal respectively successively with data collector, data server, PLC controller, deposit
Reservoir, display, intelligence printer are connected.
The present invention also proposes that the control circuit of petrochemical industry unit bearing failure diagnosis and residual service life prediction device, feature exist
In, including the change of main motor, gearbox, Bearning mechanism, temperature sensor, acceleration transducer, pressure gauge with bottom connection, radial pressure
Send device, radial loaded mechanism, radial accumulator, radial control valve, lateral accumulator, pressure gauge with back connection, axial compressive force transmitter,
Axially loaded mechanism, axial control valve, frequency converter, pressure gauge, oil pump motor, radiator, master switch, main motor starting
Key, main motor stop key, oil pump motor start key, oil pump motor stop key, reset key, rapid stop key, the preposition place of signal
Manage module, data collector, data server, PLC controller, memory, display, intelligence printer；Acceleration transducer,
Pressure gauge with bottom connection, pressure gauge with back connection, pressure gauge data distinguish and inputted in the preposition processing module of input signal through data collector
Into data server, exported respectively after data server processing to PLC controller, memory, display, memory, display
Device is separately connected intelligence printer and is printed out, acceleration transducer, pressure gauge with bottom connection, pressure gauge with back connection, pressure gauge with
And the data of temperature sensor are transferred in PLC controller and are determined, i.e., if the vibration that the data of acceleration transducer reflect
Dynamic value is bigger than normal, more than PLC controller setting value when or temperature sensor detect that the lubricating oil temperature in Bearning mechanism is super
When crossing the setting value of PLC controller, PLC controller issues stop command to rapid stop key triggering main motor stop key, oil pump electricity
Motivation stops key control main motor and oil pump motor is out of service, before on-test, starts master switch first, then utilizes
PLC controller triggers entire motor and axial direction, radial loaded control, and PLC controller exports first via control signal to radial
Control valve is respectively started radial pressure transmitter, radial loaded mechanism, radial accumulator and realizes radial loaded；PLC controller is defeated
Control signal in the second tunnel gives axial control valve out, and it is real that lateral accumulator, axial compressive force transmitter, axially loaded mechanism is respectively started
It is existing axially loaded；PLC controller exports third road control signal to frequency converter, drives main motor to rotate and then passes through gearbox
Bearning mechanism is driven to realize rotation starting test；PLC controller exports the 4th tunnel control signal and realizes test process to radiator
In heat dissipation；PLC controller exports the 5th tunnel control signal and gives main motor start key, and starting main motor rotates and then passes through
Gearbox drives Bearning mechanism to realize rotation starting test；PLC controller exports the 6th tunnel control signal oil supply pump motor and opens
Dynamic key, starting oil pump motor recycle fuel feeding to Bearning mechanism by circulation fuel tank, reset key input PLC controller to acceleration
Sensor, pressure gauge with bottom connection, pressure gauge with back connection, pressure gauge data value carry out Initialize installation.
Advantageous effects of the invention: first, apparatus of the present invention structure is simple, removes and installs to rolling bearing
It is very convenient；Second, apparatus of the present invention are close with petrochemical industry scene unit, and fault diagnosis and the service life of rolling bearing are carried out to it
Prediction as a result, having the advantages such as precision is high, stability is strong；Third, apparatus of the present invention Costco Wholesale is low, can be as needed to it
Off-line monitoring or on-line monitoring are carried out, provides effective reference for teaching, scientific research etc.；4th, the present invention is for existing
Rolling Bearing Testing Machine structure focuses on that the being completely embedded property of rolling bearing test structure, shortage add rolling bearing test structure
It carries the protection of the abnormal vibration and inordinate wear during testing and excludes design function, by increasing inside Bearning mechanism
Inordinate wear protection mechanism and mechanical arm executing agency are joined by isolation inner bushing ring and the rotatable engagement of mechanical arm executing agency
It connects, realizes the design of the abnormal inordinate wear for shaking and excluding bearing during the load test of rolling bearing test structure
Function；5th, the present invention realizes bearing failure diagnosis and predicting residual useful life by providing complete controlling test circuit
Precision test process control.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the structural schematic diagram of the preferred embodiment of Bearning mechanism of the invention.
Fig. 3 is the flow diagram of implementation method of the invention.
Fig. 4 is the structural schematic diagram of the preferred embodiment of mechanical arm executing agency of the invention.
Fig. 5 is control circuit connection schematic diagram of the invention.
Meaning marked in the figure: 1- main motor, the first yielding coupling of 2-, 3- gearbox, the elastic shaft coupling of 4- second
Device, 5- transmission mechanism, 6- Bearning mechanism, 7- temperature sensor, 8- acceleration transducer, 9- oil inlet pipe, 10- pedestal, 11- are radial
Pressure gauge, 12- radial pressure transmitter, 13- radial loaded mechanism, 14- radial direction accumulator, 15- radial direction control valve, 16- are lateral
Accumulator, 17- pressure gauge with back connection, 18- axial compressive force transmitter, the axially loaded mechanism of 19-, 20- axial direction control valve, 21- frequency conversion
Device, 22- recycle fuel tank, 23- check valve, 24- pressure gauge, 25- range meter, 26- oil pump motor, 27- flowline, 28- rolling
Bearing drawer, 29- test axis drawer, the tool box 30-, 31- radiator, 32- master switch, 33- main motor start key, 34- master
Motor stop key, 35- oil pump motor start key, 36- oil pump motor stop key, 37- reset key, 38- rapid stop key, 39-
Small footprint, the big pedestal of 40-, 41- connection pedestal, the preposition processing module of 42- signal, 43- data collector, 44- data server,
45-PLC controller, 46- memory, 47- display, 48- intelligence printer；61- test mandrel, 62- test bearing, 63- every
From inner bushing ring, 64- gear tears gasket, 65- locking nut, 66- inordinate wear protection mechanism, 67- mechanical arm executing agency, 68- hinge open
Joint chair, the outer concave slide groove of 69-, 671- longitudinal bar member, 672- liner protection block, 673- rotatable engagement sliding slot.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Fig. 1 overall structure diagram of the invention, the present invention provide petrochemical industry unit bearing failure diagnosis with
Residual service life prediction device, which is characterized in that including main motor 1, the first yielding coupling 2, gearbox the 3, second elasticity connection
Axis device 4, transmission mechanism 5, Bearning mechanism 6, radial loaded mechanism 13, axially loaded mechanism 19, circulation fuel tank 22, temperature sensor
7, acceleration transducer 8, early warning and monitoring device, main motor 1 are connected by the first yielding coupling 2 with gearbox 3, speed change
Case 3 is connected by the second yielding coupling 4 with transmission mechanism 5, and transmission mechanism 5 is connected with Bearning mechanism 6, Bearning mechanism 6 with follow
Ring fuel tank 22 is connected, and temperature sensor 7, acceleration transducer 8 are connected with early warning and monitoring device, radial loaded mechanism 13
Couple the side for being set to Bearning mechanism 6 respectively with axially loaded mechanism 19, recycles and be provided with oil pump motor 26 on fuel tank 22.
As shown in Fig. 2 the structural schematic diagram of the preferred embodiment of bearing arrangement of the invention, as a kind of preferable
Embodiment, Bearning mechanism 6 be internally provided with test mandrel 61, fourth officer test bearing 62, distribution symmetrical above and below inordinate wear
Protection mechanism 66, test bearing 62 cooperate nesting to be set on test mandrel 61, set in the gap between two secondary test bearings 62
It is equipped with isolation inner bushing ring 63, the isolation cooperation of inner bushing ring 63 is set on test mandrel 61, the inside of inordinate wear protection mechanism 66
Be fixedly installed the mechanical arm executing agency 67 of symmetrical distribution, the inner end of mechanical arm executing agency 67 be equipped in every
On outer surface from inner bushing ring 63, the outer end of inordinate wear protection mechanism 66 is provided with for fastening and the hinged seat of up and down adjustment
68, the left and right end portions of test mandrel 61 are arranged with the locking nut 65 matched, the gap between adjacent two secondary test bearings 62
Place is provided with gear and tears gasket 64 open.
As shown in Fig. 4 the structural schematic diagram of the preferred embodiment of mechanical arm executing agency of the invention, as one kind
Preferred embodiment, mechanical arm executing agency 67 include the liner protection block 672 of longitudinal bar member 671, bilateral symmetry distribution, liner
Protection block 672 is fixedly installed on the inner end of longitudinal bar member 671, and the medial surface of liner protection block 672 is provided with semicircular rotation
Turn cooperation sliding slot 673, mechanical arm executing agency 67, which is rotated by rotatable engagement sliding slot 673 with the outer surface that inner bushing ring 63 is isolated, to be slided
It is dynamic to be cooperatively connected.
As a kind of preferred embodiment, the inside of inordinate wear protection mechanism 66 is provided with the outer concave slide groove being recessed outward
69。
As a kind of preferred embodiment, fault diagnosis and residual service life prediction device further include pedestal 10, main motor 1,
Gearbox 3, Bearning mechanism 6 are each attached on pedestal 10.
As a kind of preferred embodiment, the bottom of fault diagnosis and residual service life prediction device be provided with big pedestal 40,
Small footprint 39, connection pedestal 41, circulation fuel tank 22 are fixed on big pedestal 40 by small footprint 39, and early warning and monitoring device is logical
Connection pedestal 41 is crossed to be fixed on big pedestal 40.
As a kind of preferred embodiment, the side of radial loaded mechanism 13 is additionally provided with radial pressure transmitter 12, diameter
To accumulator 14, radial control valve 15, pressure gauge with bottom connection 11, radial loaded mechanism 13 and radial pressure transmitter 12, radial storage
Can device 14, radial control valve 15 be connected, pressure gauge with bottom connection 11 be set to radial pressure transmitter 12 and radial accumulator 14 it
Between；The side of lateral loading mechanism 19 is additionally provided with lateral accumulator 16, axial compressive force transmitter 18, pressure gauge with back connection 17, axis
To control valve 20, lateral loading mechanism 19 is connected with axial compressive force transmitter 18, lateral accumulator 16, axial control valve 20,
Pressure gauge with back connection 17 is set between axial compressive force transmitter 18 and lateral accumulator 16.
As a kind of preferred embodiment, it is additionally provided with frequency converter 21 on fault diagnosis and residual service life prediction device, is become
Frequency device 21 is connected with main motor 1；Circulation fuel tank 22 is additionally provided with check valve 23, pressure gauge 24, range meter 25, and oil pump is electronic
Machine 26 is connected by circulation fuel tank 22, check valve 23, oil inlet pipe 9 with Bearning mechanism 6, and oil pump motor 26 passes through circulation fuel tank
22, flowline 27 is connected with Bearning mechanism 6.
As a kind of preferred embodiment, rolling bearing drawer is additionally provided on fault diagnosis and residual service life prediction device
28, axis drawer 29, tool box 30, radiator 31 are tested；Master switch is additionally provided on fault diagnosis and residual service life prediction device
32, main motor start key 33, main motor stop key 34, oil pump motor start key 35, oil pump motor stop key 36, multiple
Position key 37, rapid stop key 38, master switch 32 are connected with motor start-up key 33, oil pump motor start key 35 respectively, and master is electronic
Machine start key 33, main motor stop key 34 are connected with main motor 1 respectively, and oil pump motor start key 35, oil pump are electronic
Machine stop key 36 is connected with oil pump motor 26 respectively, and reset key 37 is connected with master switch 32, rapid stop key 38 respectively with master
Motor 1, oil pump motor 26 are connected.
Fig. 3 is the flow diagram of implementation method of the invention, as a kind of preferred embodiment, early warning and monitoring device packet
Include the preposition processing module 42 of signal, data collector 43, data server 44, PLC controller 45, memory 46, display 47,
Intelligence printer 48, acceleration transducer 8, temperature sensor 7 are connected with the preposition processing module 42 of signal respectively, and signal is preposition
Processing module 42 respectively successively with data collector 43, data server 44, PLC controller 45, memory 46, display 47,
Intelligence printer 48 is connected.
As shown in Fig. 5 control circuit connection schematic diagram of the invention, the present invention also propose petrochemical industry unit bearing fault
Diagnosis and the control circuit of residual service life prediction device, which is characterized in that including main motor 1, gearbox 3, Bearning mechanism 6,
Temperature sensor 7, acceleration transducer 8, pressure gauge with bottom connection 11, radial pressure transmitter 12, radial loaded mechanism 13, radial storage
It can device 14, radial control valve 15, lateral accumulator 16, pressure gauge with back connection 17, axial compressive force transmitter 18, axially loaded mechanism
19, axial control valve 20, frequency converter 21, pressure gauge 24, oil pump motor 26, radiator 31, master switch 32, main motor starting
Key 33, main motor stop key 34, oil pump motor start key 35, oil pump motor stop key 36, reset key 37, rapid stop key
38, the preposition processing module 42 of signal, data collector 43, data server 44, PLC controller 45, memory 46, display
47, intelligence printer 48；Acceleration transducer 8, pressure gauge with bottom connection 11, pressure gauge with back connection 17, the data difference of pressure gauge 24 are defeated
Enter and be input in data server 44 in the preposition processing module 42 of signal through data collector 43, is divided after the processing of data server 44
Shu Chu not be separately connected intelligence printer 48 to PLC controller 45, memory 46, display 47, memory 46, display 47 into
Row printout, acceleration transducer 8, pressure gauge with bottom connection 11, pressure gauge with back connection 17, pressure gauge 24 and temperature sensor 7
Data, which are transferred in PLC controller 45, to be determined, i.e., if the vibration values reacted of the data of acceleration transducer 8 are bigger than normal, surpasses
When crossing the setting value of PLC controller 45 or temperature sensor 7 detects that the lubricating oil temperature in Bearning mechanism 6 is more than PLC control
When the setting value of device 45 processed, PLC controller 45 issues stop command and triggers main motor stop key 34, oil pump electricity to rapid stop key 38
Motivation stop key 36 controls main motor 1 and oil pump motor 26 is out of service, before on-test, starts master switch 32 first,
Then entire motor could be triggered using PLC controller 45 and axial direction, radial loaded control, the output of PLC controller 45 first
Road controls signal to radial control valve 15, and radial pressure transmitter 12, radial loaded mechanism 13, radial accumulator 14 is respectively started
Realize radial loaded；PLC controller 45 exports the second tunnel control signal to axial control valve 20, and lateral accumulator is respectively started
16, axial compressive force transmitter 18, axially loaded mechanism 19 realize axially loaded；PLC controller 45 exports third road and controls signal
To frequency converter 21, drives main motor 1 to rotate and then drive Bearning mechanism 6 to realize rotation starting test by gearbox 3；PLC
Controller 45 exports the 4th tunnel control signal to the heat dissipation during the realization test of radiator 31；The output of PLC controller 45 the 5th
Road controls signal to main motor start key 33, manually boots main motor 1 and rotates and then drive Bearning mechanism by gearbox 3
6 realize rotation starting test；PLC controller 45 exports the 6th tunnel and controls signal oil-feed pump motor start-up key 35, manually boots
Oil pump motor 26 recycles fuel feeding to Bearning mechanism 6 by circulation fuel tank 22, and reset key 37 inputs PLC controller 45 to acceleration
Sensor 8, pressure gauge with bottom connection 11, pressure gauge with back connection 17, pressure gauge 24 data value carry out Initialize installation.
It is specifically described implementation process of the invention below.
Embodiment 1
Referring to attached drawing 1, a kind of petrochemical industry unit rolling bearing fault diagnosis and residual service life prediction device of the present embodiment, the present apparatus
Power supply uses three-phase alternating current, 380V, 50Hz, power consumption 5kW, key components are as follows: main motor 1, bullet
Property shaft coupling 2, gearbox 3, yielding coupling 4, transmission mechanism 5, Bearning mechanism 6.By starting main motor 1, join in elasticity
Under the action of axis device 2, the speedup or deceleration of gearbox 3 are realized, to directly drive the rotation axis operating in Bearning mechanism 6
Get up, rolling bearing pass through variable speed under the action of, it can be achieved that its revolving speed are as follows: 0-5000 r/min.
Frequency converter 21 is set on front panel of the invention, model are as follows: Mitsubishi universal frequency converter F700, according to test
Demand, suitable frequency should be chosen, when supply frequency be 50Hz when, when the revolving speed of main motor 1 is about 3000 r/min, that
Frequency converter 48 then should select frequency for 30-60Hz, it is ensured that the electric current of main motor 1 is less than 6.3 A of rated current.
In order to which the present invention is more nearly with petrochemical industry scene unit, Bearning mechanism 6 is connected with circulation fuel tank 22, mentions for rolling bearing
For the lubricating oil of circulation, to reach hydronic effect.In addition, different type can be exchanged in Bearning mechanism 6 for as needed
Bearing, specifically include that deep groove ball bearing, angular contact ball bearing, cylinder roller bearing, tapered roller bearing, needle bearing, vapour
Vehicle water pump shaft connecting bearings and automobile hub bearing.Meanwhile it is straight can also to choose suitable bearings by the size of replacement test shaft diameter
The size of diameter, the rolling bearing inner diameter size tested in the present apparatus are 10-60mm.
In the present invention, the left side is radial loaded mechanism 13, and radial loaded oil cylinder is arranged in behind Bearning mechanism 6；It is right
Side is axially loaded mechanism 19, and the left side of Bearning mechanism 6 is arranged in axially loaded oil cylinder.In addition, Bearning mechanism 6 is arranged above
There is temperature sensor 7, real-time monitors the temperature level of its inside lubricating oil.Either diameter carries oil cylinder or axis carries oil cylinder, when it
When film is in straightened condition, the internal clearance of the assembly length L of each part is 0 between film and carrier compound.Diameter carry oil cylinder and
The two sides that axis carries oil cylinder are equipped with cam, fix on the rotating shaft, and carrier compound when assembly and disassembly is prevented to be stuck.With hand rotation cam axis,
The protrusion of cam is enabled to touch jacking block, then piston is drawn back, and makes occur gap between film and carrier compound, is convenient for assembling bearing machine
Structure 6.Meanwhile radial loaded mechanism 13, axially loaded mechanism 19 and radial loaded mechanism 13 and axially loaded machine can be passed through respectively
Under 19 collective effect of structure, chooses suitable counterweight and tested.
Radial accumulator 14, lateral accumulator 16, are respectively arranged in radial loaded mechanism 13 and lateral loading mechanism 19,
Steady pressure is played, the pressure oscillation that leakage generates is reduced.Radial piston is divided into φ 50 in radial loaded oil cylinder, by diameter
Mm and two kinds of 100 mm of φ, when pressure is 10 MPa, the gross thrust that can be generated respectively is 20 kN and 80 kN.When radial force is small
When 20 kN, small piston is generally used；With big piston when 20-80 kN.Axial piston is producible when pressure is 10 MPa
Gross thrust is 40 kN.Diameter carry the big small piston of oil cylinder gross thrust and counterweight and hook weight and the ratio between respectively 80:1 and 20:1,
Axis carry oil cylinder gross thrust and counterweight and hook weight and the ratio between for 40:1.But maximum radial load of the invention is 80
KN, maximum axial are 40 kN.
However, the present invention can also simulate the real time execution situation of rolling bearing different types of faults.Namely in radial direction
(then radial control valve 15, axial control valve 20 are all located at this time when loading mechanism 13, axially loaded mechanism 19 all do not work
In closed state), the rolling bearing of failure early period is installed to the present apparatus and is tested, by the bearing of different faults type with
The comparison repeatedly of normal bearing test, so that the development trend of its future life of the fault diagnosis and fault prediction of bearing is obtained, to mention
Preceding replacement rolling bearing, raising working efficiency, reduction safety accident are made that important role.
Rolling bearing drawer 28, test axis drawer 29, tool box 30, are successively used to the axis of rolling of device different sizes
It holds, rotation axis, various tools etc.；One side reasonable standard the putting of each component enables and on the one hand substantially increases remaining space
Utilization, it is important that provided convenience for the rolling bearing fault diagnosis of petrochemical industry unit with life prediction.
For the accuracy of diagnosis, the present apparatus uses six acceleration transducers 8, before being individually fixed in Bearning mechanism 6
Face with below, the model of acceleration transducer 8 are as follows: AC102-1A.The other end of acceleration transducer and signal are preposition simultaneously
Processing module 42 is connected, in order to guarantee that the authenticity of signal transmission, the present apparatus carry out data transmission using coaxial cable, wherein
The cable transmission line model are as follows: Coaxial cable.
Intelligence printer 48 is successively connected with data server 44, display 47, can be configured as needed to it certainly
Dynamic printing；Simultaneously when unit breaks down or lubricating oil temperature is excessively high, automatic printing function will be executed, by unit operation
Real-time status prints, and is convenient for its development trend of subsequent fault diagnosis and fault prediction.Except successively, the Intelligent printing of the present apparatus
Machine 48 other than automatic printing, can also to acquisition vibration values it is bigger than normal when issue early warning signal, thus play effectively remind make
With.
Embodiment 2
Referring to attached drawing 3, apparatus of the present invention mainly pass through PLC controller 45 respectively to acceleration transducer 8 and temperature sensor 7 into
Row effectively control, to realize the automatic shutdown function of petrochemical industry unit.Specific steps are as follows:
Firstly, six acceleration transducers 8 are respectively set in the front-back in the Bearning mechanism 6 of petrochemical industry unit, and signal is preposition
Processing module 42 is successively coupled, so that it is guaranteed that the reliability and timeliness of the real-time vibration data of rolling bearing.Then, number
It is connected by coaxial cable transmission line with the preposition processing module 42 of signal according to collector 43, the reality that data collector 43 will acquire
When data transmission into data server 44；Then, data server 44 saves collected data in real time to memory 46
In, and the signal of rolling bearing real time execution is shown on display 47.Finally, being examined by carrying out failure to the data of acquisition
Disconnected and prediction, if vibration values are bigger than normal, more than system setting value when or temperature sensor 7 detect in Bearning mechanism 6
When lubricating oil temperature is more than the setting value of system, then PLC controller 45 will execute automatic shutdown function, stone is ensured with this
Change the safety of unit equipment；If be not above setting value, to the rolling bearing of petrochemical industry unit continue monitoring with it is pre-
It is alert.
Meanwhile the present invention is other than carrying out fault diagnosis to rolling bearing, additionally it is possible to by data server 44 to obtaining
The vibration data taken is analyzed and is handled, and the database established with early period carries out simulation comparison, thus comprehensive each side's noodles
Part predicts the development trend of petrochemical industry unit rolling bearing future life.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. petrochemical industry unit bearing failure diagnosis and residual service life prediction device, which is characterized in that including main motor (1), first
Yielding coupling (2), gearbox (3), the second yielding coupling (4), transmission mechanism (5), Bearning mechanism (6), radial loaded machine
Structure (13), axially loaded mechanism (19), circulation fuel tank (22), temperature sensor (7), acceleration transducer (8), early warning and monitoring dress
It sets, the main motor (1) is connected by first yielding coupling (2) with the gearbox (3), the gearbox
(3) it is connected by second yielding coupling (4) with the transmission mechanism (5), the transmission mechanism (5) and the bearing machine
Structure (6) is connected, and the Bearning mechanism (6) is connected with the circulation fuel tank (22), the temperature sensor (7), the acceleration
Degree sensor (8) is connected with the early warning and monitoring device, the radial loaded mechanism (13) and the axially loaded mechanism
(19) couple the side for being set to the Bearning mechanism (6) respectively, be provided with oil pump motor on the circulation fuel tank (22)
(26).
2. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
State the inordinate wear for being internally provided with test mandrel (61), fourth officer test bearing (62), distribution symmetrical above and below of Bearning mechanism (6)
Protection mechanism (66), test bearing (62) the cooperation nesting are set on the test mandrel (61), the two secondary test axis
It holds and is provided with isolation inner bushing ring (63) in the gap between (62), isolation inner bushing ring (63) cooperation is set in the test core
On axis (61), the mechanical arm that symmetrical distribution is fixedly installed on the inside of the inordinate wear protection mechanism (66) executes machine
Structure (67), the inner end of the mechanical arm executing agency (67) be equipped in it is described isolation inner bushing ring (63) outer surface on, institute
The outer end for stating inordinate wear protection mechanism (66) is provided with for fastening and the hinged seat of up and down adjustment (68), the test mandrel
(61) left and right end portions are arranged with the locking nut (65) matched, the gap location between the adjacent two secondary test bearings (62)
It is provided with gear and tears gasket (64) open.
3. petrochemical industry unit bearing failure diagnosis according to claim 2 and residual service life prediction device, which is characterized in that institute
State the liner protection block (672) that mechanical arm executing agency (67) includes longitudinal bar member (671), bilateral symmetry distribution, the liner
Protection block (672) is fixedly installed on the inner end of the longitudinal bar member (671), and the medial surface of the liner protection block (672) is set
It is equipped with semicircular rotatable engagement sliding slot (673), the mechanical arm executing agency (67) passes through the rotatable engagement sliding slot (673)
It is cooperatively connected with the outer surface rotational slide that inner bushing ring (63) is isolated；It is set on the inside of the inordinate wear protection mechanism (66)
It is equipped with the outer concave slide groove (69) being recessed outward.
4. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
Stating fault diagnosis and residual service life prediction device further includes pedestal (10), the main motor (1), the gearbox (3), the axis
Mechanism (6) is held to be each attached on the pedestal (10).
5. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
The bottom for stating fault diagnosis and residual service life prediction device is provided with big pedestal (40), small footprint (39), connection pedestal (41), institute
It states circulation fuel tank (22) to be fixed on the big pedestal (40) by the small footprint (39), the early warning and monitoring device is logical
The connection pedestal (41) is crossed to be fixed on the big pedestal (40).
6. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
The side for stating radial loaded mechanism (13) is additionally provided with radial pressure transmitter (12), radial accumulator (14), radial control valve
(15), pressure gauge with bottom connection (11), the radial loaded mechanism (13) and the radial pressure transmitter (12), the radial accumulation of energy
Device (14), radial control valve (15) are connected, the pressure gauge with bottom connection (11) be set to the radial pressure transmitter (12) with
Between the radial direction accumulator (14)；The side of the transverse direction loading mechanism (19) is additionally provided with lateral accumulator (16), axial direction
Pressure transmitter (18), pressure gauge with back connection (17), axial control valve (20), the transverse direction loading mechanism (19) and the axial pressure
Power transmitter (18), the lateral accumulator (16), the axial control valve (20) are connected, and the pressure gauge with back connection (17) sets
It is placed between the axial compressive force transmitter (18) and the lateral accumulator (16).
7. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
It states and is additionally provided with frequency converter (21) on fault diagnosis and residual service life prediction device, the frequency converter (21) and the main motor
(1) it is connected；The circulation fuel tank (22) is additionally provided with check valve (23), pressure gauge (24), range meter (25), the oil pump electricity
Motivation (26) is connected by the circulation fuel tank (22), the check valve (23), oil inlet pipe (9) with the Bearning mechanism (6),
The oil pump motor (26) is connected by the circulation fuel tank (22), flowline (27) with the Bearning mechanism (6).
8. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
It states and is additionally provided with rolling bearing drawer (28), test axis drawer (29), tool box on fault diagnosis and residual service life prediction device
(30), radiator (31)；Master switch (32) is additionally provided in the fault diagnosis and residual service life prediction device, main motor opens
Dynamic key (33), main motor stop key (34), oil pump motor start key (35), oil pump motor stop key (36), reset key
(37), rapid stop key (38), the master switch (32) respectively with the motor start-up key (33), the oil pump motor start key
(35) be connected, the main motor start key (33), the main motor stop key (34) respectively with the main motor (1)
Be connected, the oil pump motor start key (35), the oil pump motor stop key (36) respectively with the oil pump motor
(26) be connected, the reset key (37) is connected with the master switch (32), the rapid stop key (38) respectively with the main electricity
Motivation (1), the oil pump motor (26) are connected.
9. petrochemical industry unit bearing failure diagnosis according to claim 1 and residual service life prediction device, which is characterized in that institute
Stating early warning and monitoring device includes the preposition processing module of signal (42), data collector (43), data server (44), PLC control
Device (45), memory (46), display (47), intelligence printer (48), the acceleration transducer (8), the temperature sensing
Device (7) is connected with the preposition processing module of the signal (42) respectively, the preposition processing module of signal (42) respectively successively with
It is the data collector (43), the data server (44), the PLC controller (45), the memory (46), described aobvious
Show that device (47), the intelligence printer (48) are connected.
10. based on the control circuit of petrochemical industry unit bearing failure diagnosis and residual service life prediction device described in claim 1,
Be characterized in that, including main motor (1), gearbox (3), Bearning mechanism (6), temperature sensor (7), acceleration transducer (8),
Pressure gauge with bottom connection (11), radial pressure transmitter (12), radial loaded mechanism (13), radial accumulator (14), radial control valve
(15), lateral accumulator (16), pressure gauge with back connection (17), axial compressive force transmitter (18), axially loaded mechanism (19), axial control
Valve (20) processed, frequency converter (21), pressure gauge (24), oil pump motor (26), radiator (31), master switch (32), main motor
Start key (33), oil pump motor start key (35), oil pump motor stop key (36), resets main motor stop key (34)
Key (37), rapid stop key (38), the preposition processing module of signal (42), data collector (43), data server (44), PLC control
Device (45), memory (46), display (47), intelligence printer (48)；The acceleration transducer (8), the radial pressure
Table (11), the pressure gauge with back connection (17), the pressure gauge (24) data input the preposition processing module of the signal respectively
(42) it is input in the data server (44) in through the data collector (43), after data server (44) processing
It is exported respectively to the PLC controller (45), the memory (46), the display (47), it is the memory (46), described
Display (47) is separately connected the intelligence printer (48) and is printed out, the acceleration transducer (8), the radial direction
Pressure gauge (11), the pressure gauge with back connection (17), the pressure gauge (24) and the temperature sensor (7) data be transferred to
Determined in the PLC controller (45), i.e., if the vibration values that reflect of the data of the acceleration transducer (8) are bigger than normal,
More than the PLC controller (45) setting value when or the temperature sensor (7) detect in the Bearning mechanism (6)
Lubricating oil temperature when being more than the setting value of the PLC controller (45), the PLC controller (45) issues stop command to institute
It states rapid stop key (38) and triggers that the main motor stop key (34), that the oil pump motor stop key (36) controls the master is electronic
Machine (1) and the oil pump motor (26) are out of service, before on-test, start the master switch (32) first, then utilize
The PLC controller (45) triggers entire motor and axial direction, radial loaded control, PLC controller (45) output first
Road controls signal to the radial control valve (15), and the radial pressure transmitter (12), the radial loaded machine is respectively started
Structure (13), the radial accumulator (14) realize radial loaded；The PLC controller (45) exports the second tunnel control signal to institute
Axial control valve (20) are stated, the lateral accumulator (16) are respectively started, the axial compressive force transmitter (18), the axial direction add
Mounted mechanism (19) is realized axially loaded；The PLC controller (45) exports third road control signal to the frequency converter (21), drives
The main motor (1) is moved to rotate and then drive the Bearning mechanism (6) to realize rotation starting examination by the gearbox (3)
It tests；The PLC controller (45) exports the 4th tunnel control signal to the heat dissipation during the radiator (31) realization test；Institute
It states PLC controller (45) and exports the 5th tunnel control signal to the main motor start key (33), start the main motor (1)
It rotates and then drives the Bearning mechanism (6) to realize rotation starting test by the gearbox (3)；The PLC controller
(45) the 6th tunnel control signal is exported to the oil pump motor start key (35), starts the oil pump motor (26) by following
Ring fuel tank (22) recycles fuel feeding to the Bearning mechanism (6), and the reset key (37) inputs the PLC controller (45) to described
Acceleration transducer (8), the pressure gauge with bottom connection (11), the pressure gauge with back connection (17), the pressure gauge (24) data value
Carry out Initialize installation.
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| CN201811343343.2A CN109540518B (en) | 2018-11-13 | 2018-11-13 | Petrochemical unit bearing fault diagnosis and residual life prediction device and control circuit thereof |
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| CN109540518B (en) | 2024-03-15 |
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