CN110127447A - A kind of ingot shaft vibration test device under high-speed winder whole process state - Google Patents
A kind of ingot shaft vibration test device under high-speed winder whole process state Download PDFInfo
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- CN110127447A CN110127447A CN201910360980.9A CN201910360980A CN110127447A CN 110127447 A CN110127447 A CN 110127447A CN 201910360980 A CN201910360980 A CN 201910360980A CN 110127447 A CN110127447 A CN 110127447A
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- ingot
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- coiler
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
- B65H2553/41—Photoelectric detectors
Abstract
The invention discloses the ingot shaft vibration test devices under a kind of high-speed winder whole process state, belong to mechanical oscillation and testing field.The device includes support system, three Shaft fixed position modules, optical displacement sensor, motion controller, data collector and computer etc..Test device proposed by the invention can measure vibration characteristics of up- coiler rotor-support-foundation system during all 5 under up- coiler actual working state.Device can rapidly and accurately adjust the measurement position of sensor by controlling program, on the one hand on the other hand the vibration characteristics that up- coiler ingot axis different location in the longitudinal direction can be measured may also adapt to measurement position caused by being rolled up position variation due to up- coiler and change.It is measured directly that the present invention solves the problems, such as that high-speed winder ingot bearing-rotor system vibration characteristics is difficult under actual working state, and realizes high-speed winder under actual working state all during 5 to direct, the real-time measurement of ingot shaft vibration characteristic.
Description
Technical field
The present invention relates to the ingot shaft vibration test devices under a kind of high-speed winder whole process state, belong to mechanical kinetics
Technical field.
Background technique
To be usually wound into the disc of certain specification on the winder convenient for operations, the polyester filament such as storing and transporting
Shape (also known as spinning cake).Therefore, package is a kind of transient state.According to process requirement, package had both required rolling density greatly to increase capacity,
It requires face shaping to meet regulation and the uniform not turned-down edge of thread-laying again, stablizes its unwinding tension in subsequent handling, and suitable
Benefit unwinding.The core component of up- coiler is winding spindle rotor-support-foundation system, as shown in Figure 1, a whole set of reel system passes through its cover for seat 0.2
(specific installation is referring to Fig. 3) is mounted in the rack 0.1 of up- coiler.Turntable 0.3 can be rotated around itself rotating shaft；On turntable 0.3
It is provided with two sets of ingot axis --- high speed rotation is driven by motor in ingot axis I 0.4 and ingot axis II 0.5 respectively；Ingot in reeling condition
Axis 0.5 is in upper, and prepares debatching or prepare the ingot axis 0.4 wound in bottom, and every set ingot axis is equipped with expansion loop 0.7,
In winding, expansion loop ensures package and the swelling of ingot axis and makees synchronous rotary.According to current polyester filament production technology, winding line
Speed is up to 6000m/min, for keep convoluting speed it is constant, with package 0.6 diameter increase, ingot axis revolving speed by
18000r/min gradually decreases down 3000r/min, while can stablize, correctly for the silk thread on 0.6 surface is wrapped on stable just winding
Ground is laid on 0.6 periphery of package, and up- coiler is equipped with contact roller 0.8, and contact roller 0.8 is ensured with constant high revolving speed rotation
It only produces relative rotation with package surface without opposite sliding, it is impaired to avoid 0.6 surface silk thread of package.
Polyester filament production is continuous non-stop run, and winding head is in continuous uninterruptedly production process, from starting to wind
To doffing, there are 5 different phases in each winding cycle, as shown in Figure 2: blank pipe quick start stage, maximum speed point are kept
Stage, completely rolls up reduction of speed stop phase and doffing stage at winding filament process stage.1. the blank pipe quick start stage: fast in blank pipe
Fast startup stage, ingot axis I 0.4 operate under the drive of the motor, and revolving speed quickly increases to highest winding rotary speed at any time.The stage
Although without winding on ingot axis I 0.4, its dynamics unbalance response not only will affect the motion state of follow-up phase, also
Turntable, ingot axis II 0.5, or even the even running of entire up- coiler are directly affected, therefore the stage ingot axis I 0.4 is in different rotating speeds
Under vibration characteristics can not be ignored.2. maximum speed point is kept for the stage: after I 0.4 revolving speed of ingot axis reaches highest winding working speed,
Keep rotation speed constant that the winding of ingot axis II 0.5 is waited to complete.After the completion of the winding of ingot axis II 0.5, contact roller 0.8 is moved up, and is turned
Disk 0.3 rotates 180 °, and creeling technique is completed in the exchange of two ingot shaft positions, and ingot axis I 0.4 enters winding position, and highest is still kept to turn
Speed, so that the automatic or manual auxiliary of robot completes silk thread spinning-in process.3. winding filament process stage: in winding position
Enter winding portion after the completion of the movement of I 0.4 repiece of ingot axis, ingot axis is by rotating winding filament in collet paper tube at this stage
It on 0.7 and is formed package 0.6 (also known as spinning cake), to ensure winding quality, contact roller 0.8 is pressurizeed same by cylinder after normal winding
Package 0.6 keeps being in close contact, and forms " ingot axis-package-contact roller " coupled system.With the increase of 0.6 diameter of package, a side
Face be keep convoluting speed it is constant, ingot axis revolving speed is gradually reduced, on the other hand in order to make contact roller 0.8 and be wrapped 0.6 surface
Moderate pressure, ingot axis rotated by a certain angle at regular intervals by turntable 0.3, and new default winding position, Zhi Daojuan are reached
When dress reaches setting weight (full volume state), which is completed.Before turntable 0.3 rotates two ingot axis exchange position,
Contact roller 0.8 is separated with package 0.6.In winding portion, package quality, rotary inertia time-varying, ingot axis revolving speed time-varying, thus the rank
The real-time vibration characteristics of section ingot axis is particularly important.4. completely rolling up reduction of speed stop phase: the package 0.6 on ingot axis reaches full volume state
Afterwards, this period winding process terminates, and ingot axis 0.6 is gradually reduced with package by minimum speed, until static, during which turntable 0.3
The ingot axis I 0.4 completely rolled up is placed in 0.3 lower part non-rolling position of turntable by rotation, is prepared for doffing.5. the doffing stage: band
Have the ingot axis I 0.4 of package 0.6 it is static after, package 0.6 is removed from ingot axis together with paper tube 0.7.
The unbalance vibration of up- coiler ingot axis is to cause the main reason for winding machine vibration, and determine that up- coiler whether may be used
The key of normal work.It is entire it can be seen from the course of work of rotor-support-foundation system by the single winding cycle curls inward of above-mentioned up- coiler
Winding process is continuously uninterrupted, and ingot axis operating position constantly changes, package 0.6 diameter also constantly changing, and be wrapped 0.6 with
And paper tube 0.7 is almost fully wrapped around by ingot axis external cylindrical surface, brings difficulty to measurement ingot shaft vibration.As shown in figure 3, at present
Generally use the vibration characteristics of ingot bearing-rotor system under following two indirect mode test up- coiler working condition: first way
Be by sensor measurement up- coiler roller bearing seat at regulation measuring point (the A point of such as Fig. 3, FZ/T96025-2018) vibration
Situation to reflect indirectly the vibration characteristics of up- coiler rotor-support-foundation system with this, however the operating of the high speed imbalance of ingot axis is only winding
Machine generates the root of vibration, therefore measurement result and real conditions often have relatively large deviation, cannot really reflect that up- coiler works
The vibration characteristics of state lower rotor part system；The second way be by the vibration characteristics at electric vortex sensor measuring ingot axis, but
Since the range of current vortex sensor is smaller, sensing head needs to be maintained at 0.5mm or so at a distance from ingot axis or package, due to
Ingot shaft position changes with winding time, and sensor position can not make according to the change in location of ingot axis and quickly and efficiently adjust, and
The amplitude of ingot axis during startup damages sensor since double frequency resonance is easy no to scale, comes very to calibration tape
Big inconvenience.
Summary of the invention
Can be realized under high-speed winder whole process state the object of the present invention is to provide one kind (quick start, winding,
5 states such as reduction of speed) carry out ingot shaft vibration test experimental rig, can be in high-speed winder actual working state using the device
The lower vibration characteristics for obtaining up- coiler ingot bearing-rotor system in real time.
In order to achieve the above object, technical solution of the present invention provides the ingot under a kind of high-speed winder whole process state
Shaft vibration test device, which is characterized in that including support system 1, three Shaft fixed position modules, optical displacement sensor, motion control
Device, signal picker and computer, in which:
Support system is for guaranteeing that test mode is stablized；
Vibration displacement of the optical displacement sensor for directly measuring up- coiler ingot axis or being wrapped at lower edge, thus really
Reflect vibration characteristics of the up- coiler ingot axis under actual working state, realizes large amplitude, contactless direct measurement；
The vibration displacement data obtained using computer and signal picker acquisition optical displacement sensor；
Three Shaft fixed position modules are driven using computer and motion controller, according to previously known ingot shaft position changing rule
Motion control program is set, three Shaft fixed position modules is controlled by motion controller, optical displacement sensor 3 is driven to carry out ingot shaft position
Tracking measurement, optical displacement sensor change measurement position under the drive of three Shaft fixed position modules, are made by three Shaft fixed position modules
The vibration characteristics of up- coiler ingot shaft length direction different location can be measured by obtaining optical displacement sensor, while be also possible that light
Displacement sensor, which adapts to the measurement position due to caused by the position variation of up- coiler volume and roll diameter variation, to be changed, and realizes high speed
Up- coiler is under actual working state to direct, the real-time measurement of ingot shaft vibration characteristic in the full course of work.
Preferably, three Shaft fixed position module includes upper and lower for driving the optical displacement sensor to move up and down
Displacement drive mechanism, the left and right displacement driving mechanism for driving the left and right movement of the optical displacement sensor, for driving
That states the forward and backward movement of optical displacement sensor moves forward and backward driving mechanism.
Preferably, the upper and lower displacement driving mechanism includes upper and lower displacement servo motor and upper and lower displacement sliding-rail sliding machine
Structure, upper and lower displacement servo motor drive the upper and lower displacement sliding block in upper and lower displacement sliding-rail sliding mechanism along upper and lower displacement sliding rail
It moves up and down；Left and right displacement driving mechanism includes left and right displacement servo motor and left and right displacement sliding-rail sliding mechanism, left and right displacement
Left and right displacement sliding block in servo motor driving left and right displacement sliding-rail sliding mechanism is moved along left and right displacement sliding rail is left and right；Institute
Stating and moving forward and backward driving mechanism includes moving forward and backward servo motor and moving forward and backward sliding-rail sliding mechanism, moves forward and backward servo motor
Driving move forward and backward in sliding-rail sliding mechanism move forward and backward sliding block along moving forward and backward sliding rail is forward and backward to be moved；
The optical displacement sensor, which is fixed on, to be moved forward and backward on sliding block, is moved forward and backward sliding-rail sliding mechanism and is fixed on left and right
On displacer, left and right displacement driving mechanism is fixed on upper and lower displacement sliding block；
The computer controls upper and lower displacement servo motor, left and right displacement servo motor and moves forward and backward servo motor.
Preferably, the support system includes steel bracket and four air cushion shock absorbers, four air spring vibration isolation
Device is located at the four corners of steel frame bottom, and three Shaft fixed position module is fixed on steel bracket.
Preferably, the steel bracket is equipped with for ensuring clump weight of the steel bracket steadily without leaning forward.
Preferably, four air cushion shock absorbers pass through stud respectively and adjustable nut is set to the steel bracket
Bottom is finely adjusted the bearing height at four angles of the steel bracket by adjusting adjustable nut, steel bracket is made to the greatest extent may be used
Can be horizontal, reduce measurement error.
Preferably, the optical displacement sensor includes light curtain transmitter, light curtain receiver and sends out for fixing light curtain
The pedestal of emitter and light curtain receiver issues the LED light curtain that a beam width is 30mm by light curtain transmitter, corresponding by position
Light curtain receiver receives LED light curtain.
The present invention has the advantages that
(1) present invention uses non-contact type measuring method, can directly measure high-speed winder ingot axis under whole process state
Or the vibration characteristics of package, and measurement accuracy is high, thus measurement result can really reflect up- coiler under actual working state
The vibration characteristics of ingot bearing-rotor system.
(2) device of the present invention can quickly and easily change the measurement position of sensor, on the one hand can be relatively light
It changes places and measures the vibration characteristics of up- coiler ingot shaft length direction different location, be on the other hand adapted to roll up position change due to up- coiler
Measurement position changes caused by change and roll diameter variation, realizes high-speed winder whole 5 streams under actual working state
To direct, the real-time measurement of ingot shaft vibration characteristic in journey.
(3) apparatus structure of the present invention is simple, easy to operate.
Detailed description of the invention
Fig. 1 is up- coiler ingot bearing-rotor system structure chart.
Fig. 2 is the working phase cycle figure of the single winding cycle of up- coiler.
Fig. 3 is test macro working drawing.
Fig. 4 is measuring device structure composition figure.
Fig. 5 is that optical displacement sensor data acquire layout.
In figure: 0.1-up- coiler rack, 0.2-cover for seat, 0.3-turntable, 0.4,0.5-ingot axis I, II, 0.6-package,
0.7-paper tube, 0.8-contact roller, 1-support system, 1.1-steel brackets, 1.1.1-rear cross member channel steel, 1.2,1.3,
1.4,1.5-air cushion shock absorber, 2-three Shaft fixed position modules, 2.1-upper and lower displacement servo motors, 2.2-left and right displacements are watched
Motor is taken, 2.3-move forward and backward servo motor, 2.4-upper and lower displacement sliding-rail sliding components, 2.5-left and right displacement sliding-rail slidings
Component, 2.6-move forward and backward sliding-rail sliding component, 3-optical displacement sensors, 3.1-light curtain transmitters, and 3.2-light curtains connect
Receive device, 3.3-pedestals, 3.4-LED light curtains, 4-motion controllers, 5-signal pickers, 6-computers.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
As shown in Figure 3,4, the present invention implements the ingot shaft vibration under a kind of disclosed whole process state for high-speed winder
Test device includes for guaranteeing the stable support system 1 of test mode, positioning for changing three axis of sensor measurement position
System 2 and the optical displacement sensor 3 for high-acruracy survey, the controller 4 for motion control, for receiving signal
Signal picker 5 and computer 6.
As shown in figure 3, optical displacement sensor 2 can directly measure the Vibration Condition at up- coiler package lower edge, from
And really reflect vibration displacement of the up- coiler ingot axis under actual working state, so that really reflection up- coiler ingot axis is in practical work
Make the vibration characteristics under state, realizes large amplitude, contactless direct measurement.
As shown in figure 3, optical displacement sensor 3 is connect by bolt with the sliding block on three Shaft fixed position modules 2, the positioning of three axis
System 2 can rapidly and accurately adjust the measurement position of sensor by computer, on the one hand can measure up- coiler ingot shaft length
On the other hand the vibration characteristics of direction different location may also adapt to roll up position variation and roll diameter variation due to up- coiler and draw
The measurement position variation risen, to ingot shaft vibration characteristic during realization high-speed winder is 5 whole under actual working state
Directly, real-time measurement.
As shown in figure 4, support system 1 includes steel bracket 1.1 and air cushion shock absorber 1.2,1.3,1.4,1.5, steel
1.1 rear cross member channel steel side of bracket processed is set there are three through-hole, mountable clump weight, it is ensured that bracket is steadily without leaning forward.Four skies
Gas spring vibration isolator 1.2,1.3,1.4,1.5 passes through four of stud and two adjustable nuts and 1.1 bottom of steel bracket respectively
Angle is connected, and can significantly reduce since the factors such as up- coiler work cause the vibration of measuring device caused by ground vibration, lead to
The bearing height at four angles of steel bracket can be finely adjusted by overregulating nut, to keep steel bracket as horizontal as possible, be reduced
Test error.
As shown in figure 4, three Shaft fixed position modules 2 mainly include upper and lower displacement servo motor 2.1, left and right displacement servo motor
2.2, servo motor 2.3 and upper and lower displacement sliding-rail sliding component 2.4, left and right displacement sliding-rail sliding component 2.5, front and back are moved forward and backward
It is displaced sliding-rail sliding component 2.6.It is bolted between three sets of sliding-rail sliding components, forms the positioning system 2 of three-shaft linkage,
Three servo motors are driven to control upper and lower, three directions of left-right and front-back movement respectively by computer 6.Optical displacement sensor 3
It is fixed by bolts in and moves forward and backward moving forward and backward on sliding block on sliding-rail sliding component 2.6.
As shown in figure 5, optical displacement sensor 3 includes light curtain transmitter 3.1, light curtain receiver 3.2 and pedestal 3.3.
The capable of emitting beam width of light curtain transmitter 3.1 is the LED light curtain 3.4 of 30mm.3.4 partial width of light curtain is blocked by package lower end
Firmly, the part not being blocked is received by light curtain receiver 3.2, and the width of the part light curtain is obtained measured value.
As shown in Figure 1, motion controller 4 is connect with computer 6, can be set according to the previously known ingot axis characteristics of motion
Motion control program carries out ingot shaft position tracking measurement, to realize high-speed winder whole 5 mistakes under actual working state
To the real-time measurement of ingot shaft vibration characteristic in journey.
As shown in Figure 1, data collector 5 is connect by data line with sensor, measurement data is recorded, and can count
It calculates and forms ingot shaft vibration displacement changing curve in device 6, so as to subsequent progress data analysis.
The dynamic testing method under the high-speed winder working condition based on above-mentioned apparatus in the embodiment of the present invention, including
Following steps:
I: up- coiler is shut down, and measuring device is placed in suitable initial position by trolley or manual handling, it is ensured that
Measuring device is not interfered with up- coiler；
II: the clump weight of constant weight being installed on the side rear cross member channel steel 1.1.1, it is ensured that bracket is steadily without leaning forward；
III: checking whether the tolerance of air cushion shock absorber 1.2,1.3,1.4,1.5 is sufficient and existing with the presence or absence of gas leakage
As；The nut of air cushion shock absorber 1.2,1.3,1.4,1.5 and 1.1 bottom junctions of steel bracket is adjusted by four, it is right
The bearing height at four angles of bracket is finely adjusted, and keeps steel bracket as horizontal as possible, reduces measurement error；
IV: optical displacement sensor 3 is powered, and connect with signal picker 5, checks LED light curtain 3.4 and data transmission is
It is no normal；
V: the motion controller 4 of three Shaft fixed position modules 2 being communicated with computer 6, adjustment optics is controlled by computer 6
The measurement position of displacement sensor 3 is in the lower edge of package 0.6 as far as possible among light curtain 3.4, and is guaranteeing optics position
Displacement sensor 3 does not shelter from part light curtain in the case where package interference, and the width of this part light curtain can be in 5-25mm
Arbitrary value；
VI: starting up- coiler, the light curtain width that is not blocked at this time (package lower edge to light curtain lower edge away from
From) it is to test resulting measured value, up- coiler ingot axis is reflected by change curve of the measured value when up- coiler works
Vibration characteristics of the rotor-support-foundation system under actual working state；
VII: due to the changing rule of ingot shaft position in the known up- coiler whole service period, in the vibration of current ingot shaft position
After dynamic characteristic test, optical displacement sensor 3 can be adjusted to measurement position needed for next winding position in advance, reached
The effect of real time position tracking measurement.Finally obtain vibration of the high-speed winder ingot bearing-rotor system under all 5 flow states
Dynamic characteristic data.
Claims (7)
1. the ingot shaft vibration test device under a kind of high-speed winder whole process state, which is characterized in that including support system
(1), three Shaft fixed position modules (2), optical displacement sensor (3), motion controller (4), data collector (5) and computer (6),
Wherein:
Support system (1) is for guaranteeing that test mode is stablized；
Optical displacement sensor (3) is for the vibration displacement at directly measurement up- coiler package (0.6) lower edge, thus true anti-
Vibration characteristics of the up- coiler ingot axis under actual working state is reflected, realizes large amplitude, contactless direct measurement；
The vibration displacement data that computer (6) is obtained by data collector (5) acquisition optical displacement sensor (3)；
Computer (6) is changed by motion controller (4) driving three Shaft fixed position modules (2) according to previously known ingot shaft position
Rule setting motion control program, drives optical displacement sensor (3) by motion controller (4) control three Shaft fixed position modules (2)
Ingot shaft position tracking measurement is carried out, optical displacement sensor (3) changes measurement position under the drive of three Shaft fixed position modules (2),
Make optical displacement sensor (3) that up- coiler ingot shaft length direction different location can be measured by three Shaft fixed position modules (2)
Vibration characteristics, while being also possible that optical displacement sensor (3) are adapted to due to the position variation of up- coiler volume and roll diameter variation
Caused by measurement position variation, realize high-speed winder under actual working state in the full course of work to ingot shaft vibration characteristic
Direct, real-time measurement.
2. the ingot shaft vibration test device under a kind of high-speed winder whole process state as described in claim 1, feature exist
In three Shaft fixed position module includes the upper and lower displacement driving machine for driving the optical displacement sensor (3) to move up and down
Structure, the left and right displacement driving mechanism for driving the optical displacement sensor (3) left and right movement, for driving the optics
Displacement sensor (3) forward and backward movement moves forward and backward driving mechanism.
3. the ingot shaft vibration test device under a kind of high-speed winder whole process state as claimed in claim 2, feature exist
In, the upper and lower displacement driving mechanism include upper and lower displacement servo motor (2.1) and upper and lower displacement sliding-rail sliding mechanism (2.4),
Upper and lower displacement servo motor (2.1) drives the upper and lower displacement sliding block in upper and lower displacement sliding-rail sliding mechanism (2.4) along upper bottom
Sliding rail is moved to move up and down；Left and right displacement driving mechanism includes left and right displacement servo motor (2.2) and left and right displacement sliding-rail sliding machine
Structure (2.5), left and right displacement servo motor (2.2) drive the left and right displacement sliding block edge in left and right displacement sliding-rail sliding mechanism (2.5)
The left and right movement of left and right displacement sliding rail；The driving mechanism that moves forward and backward includes moving forward and backward servo motor (2.3) and anteroposterior position
Move sliding-rail sliding mechanism (2.6), move forward and backward servo motor (2.3) driving move forward and backward in sliding-rail sliding mechanism (2.6) before
Along moving forward and backward, sliding rail is forward and backward to be moved displacer afterwards；
The optical displacement sensor (3), which is fixed on, to be moved forward and backward on sliding block, is moved forward and backward sliding-rail sliding mechanism (2.6) and is fixed on
On left and right displacement sliding block, left and right displacement driving mechanism is fixed on upper and lower displacement sliding block；
The computer (6) control upper and lower displacement servo motor (2.1), left and right displacement servo motor (2.2) and moving forward and backward is watched
Take motor (2.3).
4. the ingot shaft vibration test device under a kind of high-speed winder whole process state as described in claim 1, feature exist
In the support system includes steel bracket (1.1) and four air cushion shock absorbers (1.2,1.3,1.4,1.5), four skies
Gas spring vibration isolator (1.2,1.3,1.4,1.5) is located at the four corners of steel bracket (1.1) bottom, three axis positioning system
System (2) is fixed on steel bracket (1.1).
5. the ingot shaft vibration test device under a kind of high-speed winder whole process state as claimed in claim 4, feature exist
In the steel bracket (1.1) is equipped with for ensuring steel bracket (1.1) the steadily clump weight without leaning forward.
6. the ingot shaft vibration test device under a kind of high-speed winder whole process state as claimed in claim 4, feature exist
In four air cushion shock absorbers (1.2,1.3,1.4,1.5) are set to the steel by stud and adjustable nut respectively
The bottom of bracket (1.1), it is micro- to the bearing height progress at four angles of the steel bracket (1.1) by adjusting adjustable nut
It adjusts, keeps steel bracket (1.1) as horizontal as possible, reduce measurement error.
7. the ingot shaft vibration test device under a kind of high-speed winder whole process state as described in claim 1, feature exist
In the optical displacement sensor includes light curtain transmitter (3.1), light curtain receiver (3.2) and emits for fixing light curtain
The pedestal (3.3) of device (3.1) and light curtain receiver (3.2) issues the LED that a beam width is 30mm by light curtain transmitter (3.1)
Light curtain (3.4) receives LED light curtain (3.4) by the quite corresponding light curtain receiver (3.2) in position.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113588277A (en) * | 2021-08-10 | 2021-11-02 | 东北大学 | Vibration measuring device for multi-size outline rotor of engine and digital twinning method thereof |
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