CN110057580A - A kind of main shaft of hoister dynamic response characteristic test device and method - Google Patents
A kind of main shaft of hoister dynamic response characteristic test device and method Download PDFInfo
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- CN110057580A CN110057580A CN201910311707.7A CN201910311707A CN110057580A CN 110057580 A CN110057580 A CN 110057580A CN 201910311707 A CN201910311707 A CN 201910311707A CN 110057580 A CN110057580 A CN 110057580A
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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
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Abstract
The invention discloses a kind of main shaft of hoister dynamic response characteristic test device and methods, described device includes main shaft device, control cabinet, telemetry system, equipment data acquisition analyzing and computer, main shaft device includes main shaft, rolling bearing and reel, main shaft is by roller bearings, acceleration transducer is set on main shaft, acceleration transducer is connected with telemetry system, eddy current displacement sensor is arranged in the outer surface of rolling bearing, telemetry system, eddy current displacement sensor are connected with equipment data acquisition analyzing, and equipment data acquisition analyzing is connected with computer.The test method is elevator work, and eddy current displacement sensor transmits a signal to equipment data acquisition analyzing；Acceleration transducer transmits a signal to signal conditioning module, then is transferred to signal receiver, then arrives equipment data acquisition analyzing；Equipment data acquisition analyzing transfers data to computer.The present invention is that the optimization of main shaft of hoister apparatus structure and vibration and noise reducing are provided fundamental basis.
Description
Technical field
The present invention relates to main shaft of hoister test, specially a kind of main shaft of hoister dynamic response characteristic test device and side
Method.
Background technique
Mine hoist main spindle device is the important component of km deep-well large-scale hoister, plays transmitting power and holds
Important function loaded.The system will not only bear the dynamic load that shafting generates under various operating conditions, but also need to bear
Load caused by other component during elevator work, under the action of these complex loads, main shaft of hoister device is frequent
There is abnormal high vibration, even parts damages occurs sometimes, cause equipment to be unable to operate normally, seriously threaten lifting system
Stability and safety.
China's metal, coal mining gradually develop to ultra-deep direction, cause dead load suffered by mine hoist main spindle device
Increasing, dynamic loading becomes increasingly complex, and proposes increasingly higher demands to stability and safety.However to being at present
Only, people sufficiently rest in the load that out-of-balance force, roller bearings power, the frictional force of brake and rope apply not yet
The Torsion Coupling nonlinear dynamic response characteristic of main shaft of hoister device under the effects of lotus, especially system parameter is to main shaft device
The affecting laws of dynamic response characteristic and its stability.Therefore, carry out km deep-well large-scale hoister primary shaft device Torsion Coupling
Vibration mechanism research, the safety in production for improving China's km deep-well large size lifting system are of great significance, to km depth
Well large-scale hoister primary shaft apparatus structure, which designs and manufactures economic and social profit raising of industry etc., has application value, while right
Dynamical Characteristics and its structure design for being present in rotary axis in other equipment have important scientific meaning.
Currently, the measurement to characteristic of rotating machines vibration signal is all mostly contactless displacement measurement system, and common electricity
Eddy displacement sensor measures, but eddy current displacement sensor is but very insensitive for high-frequency signal, is difficult accurately to survey
, although acceleration transducer is very sensitive to high-frequency signal, it is difficult to realize non-cpntact measurement.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, it is an object of the present invention to provide a kind of non-cpntact measurements
Main shaft of hoister dynamic response characteristic test device, another object of the present invention is to provide a kind of promotion owner of non-cpntact measurement
Axis dynamic response characteristic test method.
A kind of technical solution: main shaft of hoister dynamic response characteristic test device of the present invention, it is characterised in that: packet
Main shaft device, control cabinet, telemetry system, equipment data acquisition analyzing and computer are included, control cabinet is used to control the fortune of elevator
Row and rotation, main shaft device include main shaft, rolling bearing and reel, and main shaft is arranged for surveying by roller bearings on main shaft
The acceleration transducer of transverse curvature and twisting vibration is measured, acceleration transducer is connected with telemetry system, the appearance of rolling bearing
The eddy current displacement sensor for measuring vibration displacement and orbit of shaft center, telemetry system, eddy current displacement sensor is arranged in face
It is connected with equipment data acquisition analyzing, equipment data acquisition analyzing is connected with computer, is acquired to each road response signal
And analysis, obtain the vibratory response characteristic of the main shaft of hoister under different operating conditions.
Telemetry system includes power supply, power source generator, signal receiver, signal pickup, transmitting module, signal condition mould
Block, encoder and induction of signal coil, acceleration transducer transmits a signal to signal conditioning module, after the processing of encoded device
Signal pickup is transmitted a signal to through induction of signal coil by transmitting module, signal pickup transfers signals to signal reception
Device, signal receiver transmit a signal to equipment data acquisition analyzing.Induction of signal coil at a distance from signal pickup for 3~
100mm, induction of signal coil are 3~10mm at a distance from power source generator, hypotelorism or will affect the accurate of telemetering too far
Property.
The signal that eddy current displacement sensor measures is transported to data collection and analysis after the amplification of current vortex preamplifier
Device.Eddy current displacement sensor is respectively set in the vertical and horizontal direction, and eddy current displacement sensor quantity is two or 4
A, the eddy current displacement sensor in vertical direction is used to measure the displacement signal and orbit of shaft center of rotor-support-foundation system vertical direction,
Eddy current displacement sensor in horizontal direction is used to measure the displacement signal and orbit of shaft center of rotor-support-foundation system horizontal direction.Electric whirlpool
Stream displacement sensor is fixed on the outer surface of rolling bearing by magnet base.
Acceleration transducer is reinforced on main shaft by glue or adhesive tape, it is ensured that acceleration transducer during operating
It will not loosen, the signal of acceleration transducer vertical direction is used to measure the transverse bending vibration of main shaft, the signal of horizontal direction
For measuring the tangential vibrations of main shaft two sides, the two tangential vibrations signals are subjected to additive operation, offset bending vibration signal
Influence, the vibration signal of main shaft torsional direction will be obtained.Main shaft is connected by shaft coupling with motor, and motor is driving main shaft fortune
Turn, motor is connected by foundation bolt with motor supporting base.Reel is fixedly connected with main shaft, and reel both ends are symmetrically arranged with braking
Disk, brake disc are equipped with seam allowance, and brake disc is covered in reel ends and is bolted by seam allowance.Brake disc is seperated docking
Structure is capable of seperated transport, the in-site installation of brake disc, installation by being welded at its docking with connecting plate and being bolted
When bolt need to only be tightened by certain screw-down torque with torque spanner.When replacing brake disc, as long as by former brake disc
It all unloads, new building is changed, installation period greatly shortens.Rolling bearing is mounted on bearing support block, bearing support
Seat is bolted on rigid face.
The parameter of control cabinet interface display includes the rotation speed etc. of excitation voltage, electric current, power and main shaft, to make
It can monitor that the functioning condition of main shaft of hoister device, power supply are given by the power source generator that frequency is 30~60Hz constantly with personnel
Control cabinet power supply, the supply of power supply and the pickup of signal are realized by electromagnetic induction, so in the area of electromagnetic induction
The appearance of other electromagnetic fields should be avoided in domain, true and stable with the signal for ensuring to pick up.
The test method of above-mentioned apparatus comprising the steps of: the main shaft device of elevator works；Eddy current displacement sensor
Vibration signal is transmitted to current vortex preamplifier, then is transported to equipment data acquisition analyzing；Acceleration transducer will vibrate
Signal is transferred to signal conditioning module, transfers signals to letter by transmitting module and signal pickup via after the processing of encoder
Number receiver, then it is transported to equipment data acquisition analyzing；Equipment data acquisition analyzing transfers data to computer, and cooperation calculates
Software in machine obtains the vibratory response characteristic of the main shaft of hoister device under different operating conditions.
The utility model has the advantages that compared to the prior art the present invention, has the characteristics that following conspicuousness: establishing the promotion of km deep-well large size
Owner's shaft device Torsion Coupling non-linear dynamic model discloses the systems such as load, rotation speed, support stiffness, film thickness ratio ginseng
The influence of several pairs of system dynamics and stability Evolution optimize for km deep-well large-scale hoister primary shaft apparatus structure
It provides fundamental basis with vibration and noise reducing；Non-cpntact measurement is realized by telemetry system.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural schematic diagram of telemetry system 3 of the present invention.
Fig. 3 is the working principle of the invention figure.
Specific embodiment
Such as Fig. 1, control cabinet 2 controls the operation of entire elevator system, and the motor 105 of main shaft device 1 passes through foundation bolt
106 are fixedly connected with motor supporting base 107, and are connected by shaft coupling 104 and main shaft 101, drive the main shaft device 1 of elevator
Rotation, main shaft 101 are supported by two rolling bearings 102, and rolling bearing 102 is mounted on bearing support block 110, bearing support
Seat 110 is bolted on cement flooring, and acceleration sensing is housed on the right end main shaft 101 of left side rolling bearing 102
Acceleration transducer 6 is adhered on main shaft 101 fixed, the arrangement electricity on 102 shell of rolling bearing with glue or adhesive tape by device 6
Eddy displacement sensor 7, is fixed on testing stand with magnet base, for measuring the rotor-support-foundation system transverse-vibration of main shaft device 1
Dynamic signal, power supply 301 are powered by the power source generator 302 that frequency is 30~60Hz to other hardware, the supply of power supply 301 with
The pickup of signal is realized by electromagnetic induction, so going out for other electromagnetic fields should be avoided in the region of electromagnetic induction
It is existing, it is true and stable with the signal for ensuring to pick up.Reel 103 is fixedly connected with main shaft 101, and 103 both ends of reel are symmetrically arranged with system
Moving plate 108, brake disc 108 are equipped with seam allowance, and brake disc 108 is covered in 103 end of reel and is bolted by seam allowance.System
Moving plate 108 is seperated docking structure, by being welded at its docking with connecting plate 109 and being bolted.Rolling bearing 102 is installed
On bearing support block 110, bearing support block 110 is bolted on rigid face.The parameter packet of 2 interface display of control cabinet
The rotation speed etc. of excitation voltage, electric current, power and main shaft is included, so that user of service can monitor main shaft of hoister device constantly
Functioning condition.
Such as Fig. 2, telemetry system 3 include power supply 301, power source generator 302, signal receiver 303, signal pickup 304,
Transmitting module 305, signal conditioning module 306, encoder 307 and induction of signal coil 308, induction of signal coil 308 and signal
The distance of pick-up 304 is 3~100mm, and induction of signal coil 308 is 3~10mm, distance at a distance from power source generator 302
It will affect the accuracy of telemetering too far.
The working principle of the invention such as Fig. 3, the rotor-support-foundation system for measuring main shaft device 1 by eddy current displacement sensor 7 are horizontal
To vibration signal, the oscillation crosswise signal measured is conveyed by low noise cable again after the amplification of current vortex preamplifier 8
To equipment data acquisition analyzing 4.The vibration signal of main shaft 101 is transferred to signal conditioning module 306 by acceleration transducer 6, warp
By transferring signals to signal receiver 303 by transmitting module 305 and signal pickup 304 after the processing of encoder 307.Data
Acquisition and analysis device 4 is acquired and analyzes to each road response signal, and the software in coupled computer 5 will be obtained in different works
The vibratory response characteristic of main shaft of hoister device 1 under condition.
Claims (10)
1. a kind of main shaft of hoister dynamic response characteristic test device, it is characterised in that: including main shaft device (1), control cabinet
(2), telemetry system (3), equipment data acquisition analyzing (4) and computer (5), the control cabinet (2) is for controlling elevator
Operation and rotation, the main shaft device (1) includes main shaft (101), rolling bearing (102) and reel (103), the main shaft
(101) it is supported by rolling bearing (102), the acceleration for measuring transverse curvature and twisting vibration is set on the main shaft (101)
It spends sensor (6), the acceleration transducer (6) is connected with telemetry system (3), and the outer surface of the rolling bearing (102) is set
Set the eddy current displacement sensor (7) for measuring vibration displacement and orbit of shaft center, the telemetry system (3), current vortex displacement
Sensor (7) is connected with equipment data acquisition analyzing (4), and the equipment data acquisition analyzing (4) is connected with computer (5).
2. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: described distant
Examining system (3) includes power supply (301), power source generator (302), signal receiver (303), signal pickup (304), transmitting mould
Block (305), signal conditioning module (306), encoder (307) and induction of signal coil (308), the acceleration transducer (6)
It transmits a signal to signal conditioning module (306), by transmitting module (305) through induction of signal after the processing of encoded device (307)
Coil (308) transmits a signal to signal pickup (304), and signal pickup (304) transfers signals to signal receiver
(303), the signal receiver (303) transmits a signal to equipment data acquisition analyzing (4).
3. a kind of main shaft of hoister dynamic response characteristic test device according to claim 2, it is characterised in that: the letter
Number induction coil (308) is 3~100mm, the induction of signal coil (308) and power supply at a distance from signal pickup (304)
The distance of generator (302) is 3~10mm.
4. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: the electricity
The signal that eddy displacement sensor (7) measures is transported to equipment data acquisition analyzing after current vortex preamplifier (8) amplify
(4)。
5. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: the electricity
Eddy displacement sensor (7) is respectively set in the vertical and horizontal direction.
6. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: the electricity
Eddy displacement sensor (7) is fixed on the outer surface of rolling bearing (7) by magnet base.
7. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: described to add
Velocity sensor (6) is reinforced on main shaft (101) by glue or adhesive tape.
8. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: the master
Axis (101) is connected by shaft coupling (104) with motor (105), and the motor (105) passes through foundation bolt (106) and motor branch
Seat (107) are supportted to be connected.
9. a kind of main shaft of hoister dynamic response characteristic test device according to claim 1, it is characterised in that: the volume
Cylinder (103) is fixedly connected with main shaft (101), and reel (103) both ends are symmetrically arranged with brake disc (108), the brake disc
(108) it is equipped with seam allowance, brake disc is covered in reel (103) end and is bolted by seam allowance.
10. a kind of main shaft of hoister dynamic response characteristic test method, it is characterised in that: the main shaft device (1) of elevator works；
Vibration signal is transmitted to current vortex preamplifier (8) by eddy current displacement sensor (7), then is transported to data collection and analysis dress
Set (4)；Vibration signal is transferred to signal conditioning module (306) by acceleration transducer (6), via the processing of encoder (307)
Signal receiver (303) are transferred signals to by transmitting module (305) and signal pickup (304) afterwards, then is transported to data and adopts
Set analysis device (4)；Equipment data acquisition analyzing (4) transfers data to computer.
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| CN201910311707.7A CN110057580B (en) | 2019-04-17 | 2019-04-17 | Device and method for testing dynamic response characteristics of main shaft of elevator |
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| CN201910311707.7A CN110057580B (en) | 2019-04-17 | 2019-04-17 | Device and method for testing dynamic response characteristics of main shaft of elevator |
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| CN110057580A true CN110057580A (en) | 2019-07-26 |
| CN110057580B CN110057580B (en) | 2020-09-01 |
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Cited By (3)
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| CN110307974A (en) * | 2019-08-19 | 2019-10-08 | 王庆喜 | A kind of detection device of computer radiating motor main shaft |
| CN113107834A (en) * | 2021-05-14 | 2021-07-13 | 浙江大学 | Non-invasive axial plunger pump cylinder dynamic characteristic measuring method |
| CN113720606A (en) * | 2021-08-30 | 2021-11-30 | 湖南工程学院 | Tool for designing shafting of direct-drive permanent magnet wind turbine generator and design method |
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Granted publication date: 20200901 |