CN110498315A - A kind of elevator traction sheave wear detector and detection method - Google Patents
A kind of elevator traction sheave wear detector and detection method Download PDFInfo
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- CN110498315A CN110498315A CN201910803808.6A CN201910803808A CN110498315A CN 110498315 A CN110498315 A CN 110498315A CN 201910803808 A CN201910803808 A CN 201910803808A CN 110498315 A CN110498315 A CN 110498315A
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- traction sheave
- clamping plate
- plate
- pedestal
- sliding block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
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Abstract
The present invention provides a kind of elevator traction sheave wear detector and detection methods, belong to elevator detection device technical field.The present invention includes pedestal, two the first slide bars, two the second slide bars, driving mechanism and clamping device, two first slide bars are horizontally set on the left side wall of pedestal, sliding is provided with the first sliding block on two first slide bars, the upper side of first sliding block is installed with illuminatian plate, the illuminatian plate is equipped with several LED lamp beads close to the side of pedestal, two second slide bars are horizontally set on the right side wall of pedestal, sliding is provided with the second sliding block on two second slide bars, the upper side of second sliding block is installed with fixed plate, the fixed plate is equipped with camera unit, the driving mechanism can make the first sliding block and the second sliding block towards and away from sliding, illuminatian plate and fixed plate can be also secured on the wheel face of traction sheave by the clamping device.The present invention can fast, accurately and comprehensively detect the wear condition of traction sheave.
Description
Technical field
The invention belongs to elevator detection device technical field, it is related to a kind of elevator traction sheave wear detector and detection side
Method.
Background technique
For elevator as vertical transport tool main in building, primary structure is that carriage and counterweight pass through traction steel
The connection of cord drives traction steel-cable by traction machine to control the operation of elevator, and traction steel-cable is wound on the traction sheave, and one
End suspension carriage, one end hang counterweight, generate drive force sedan-chair by the friction between traction steel-cable and traction race
Compartment moves up and down, with the rotation of traction sheave, using wirerope to opposite between the pressure and wirerope and race of race
The frictional force drives elevator operation that movement generates.
With the increase of traction race service life, the race of traction sheave will appear abrasion, with the increase of abrasion loss, wheel
Groove shape changes, and the frictional force between traction steel-cable and race is caused to reduce, and car slipping, the carriage accidents such as surprisingly occur,
According to related request, when the race of traction sheave wears up to a certain range, need that traction sheave is placed under repair or replaced in time, such as
Repairing or replacing not in time will impact to elevator safety operation and to personal safety.
It is measured currently, the abrasion of traction sheave race is most by traditional ruler, the time of measurement is longer, measurement result
Accuracy is not also high, cannot rationally judge the wear condition of traction sheave race.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of elevator traction sheave abrasion detection is proposed
Device and detection method can fast, accurately and comprehensively detect the wear condition of traction sheave.
Object of the invention can be realized by the following technical scheme:
A kind of elevator traction sheave wear detector characterized by comprising pedestal, the cross section of the pedestal are in square
Shape:
Two the first slide bars, two first slide bars are horizontally set on the left side wall of pedestal, and two described first slide
Bar is installed with first baffle far from one end of pedestal, slides on two first slide bars and is provided with the first sliding block, and described first
The upper side of sliding block is installed with illuminatian plate, and the illuminatian plate is equipped with several LED lamp beads, the illuminatian plate close to the side of pedestal
With the left sidewall of pedestal；
Two the second slide bars, two second slide bars are horizontally set on the right side wall of pedestal, and two described second slide
Bar is installed with second baffle far from one end of pedestal, slides on two second slide bars and is provided with the second sliding block, and described second
The upper side of sliding block is installed with fixed plate, and the fixed plate is equipped with perforation, is equipped with camera unit, the camera shooting in the perforation
Unit face illuminatian plate；
Driving mechanism, the driving mechanism can make the first sliding block and the second sliding block towards and away from sliding；
Illuminatian plate and fixed plate can be also secured on the wheel face of traction sheave by clamping device, the clamping device.
In above-mentioned elevator traction sheave wear detector, the driving mechanism includes:
Motor, the pedestal is interior to be equipped with installation cavity, and the motor is installed in installation cavity；
Drive shaft, the drive shaft are vertically rotatably arranged on the upper side of pedestal, and the lower end of the drive shaft extends to
In installation cavity and the output shaft of end and motor is sequentially connected, and the upper end level of the drive shaft is installed with rotating bar；
First interlocking lever, one end of first interlocking lever and one end of rotating bar are hinged, first interlocking lever it is another
One end is hinged on the upper side of the first sliding block；
Second interlocking lever, one end of second interlocking lever and the other end of rotating bar are hinged, second interlocking lever
The other end is hinged on the upper side of the second sliding block.
In above-mentioned elevator traction sheave wear detector, the downside of the pedestal is installed with handle vertically.
In above-mentioned elevator traction sheave wear detector, the clamping device includes:
Piston cylinder, the piston cylinder level are installed on the downside of pedestal, the length direction and pedestal of the piston cylinder
Front-rear side walls it is vertical；
Piston rod, the piston rod are slidably arranged in piston cylinder, and the piston rod end in piston cylinder is installed with work
Plug, the piston from left to right will successively be separated into the first cavity and the second cavity inside piston cylinder, the upper cover of piston rod is set
There is holddown spring, the holddown spring is between piston and the right side wall of the second cavity, on the right side wall of second cavity
Perforation is equipped with air hole；
First clamping plate, first clamping plate are installed in the left side of piston cylinder vertically；
Second clamping plate, second clamping plate are installed in the right side of piston rod vertically；
Driving unit, the driving unit are able to drive piston rod and slide in piston cylinder, adjust the first clamping plate and the
The distance between two clamping plates.
In above-mentioned elevator traction sheave wear detector, the driving unit includes annular air-pocket, on the handle
Equipped with annular groove, it is equipped with annular retractable air bag in the annular groove, is equipped with several thirds in the annular retractable air bag
Reset spring, the annular retractable air bag are connected by hose with the first cavity of piston cylinder.
In above-mentioned elevator traction sheave wear detector, the top of the fixed plate is equipped with the first section, and described the
One section from left to right diagonally downward and is installed with the first rubber block, and the top of the fixed plate is equipped with the second section, and described the
Two sections from left to right tilt upward and are installed with the second rubber block.
In above-mentioned elevator traction sheave wear detector, first clamping plate is solid close to the side of the second clamping plate
Equipped with the first electromagnet, second clamping plate is installed with the second electromagnet close to the side of the first clamping plate, the pedestal
Downside is equipped with battery and controller, and first electromagnet and the second electromagnet pass through controller and be electrically connected with battery
It connects.
In above-mentioned elevator traction sheave wear detector, the top of first clamping plate is equipped with third through-hole, institute
It states and is inserted with the first slide bar in third through-hole, the right end of first slide bar stretches out third through-hole and end is installed with the first circle
The left end of ball, first slide bar stretches out third through-hole and end is installed with the first limit plate, is arranged on first slide bar
First back-moving spring, the first back-moving spring are set on first ball between the first limit plate and the first clamping plate
There is first pressure sensor, the first pressure sensor is electrically connected with the controller.
In above-mentioned elevator traction sheave wear detector, the top of second clamping plate is equipped with fourth hole, institute
It states and is inserted with the second slide bar in fourth hole, fourth hole is stretched out in the left end of second slide bar and end is installed with the second circle
The right end of ball, second slide bar stretches out fourth hole and end is installed with the second limit plate, is arranged on second slide bar
Second back-moving spring, the second back-moving spring are set on second ball between the second limit plate and the second clamping plate
There is second pressure sensor, the second pressure sensor is electrically connected with the controller.
A kind of detection method of elevator traction sheave wear detector, comprising the following steps:
1) handle, is clutched, the annular retractable air bag on handle is squeezed, and the gas in annular retractable air bag is extruded to
In first cavity, push piston to close to the movement of the direction of the second clamping plate, holddown spring is compressed, the first clamping plate and second
The distance between clamping plate increases；
2), start motor, the distance between illuminatian plate and fixed plate are adjusted according to the size of traction sheave, then lifted
Handle makes the first rubber block and the second rubber block be in contact with the wheel face of traction sheave simultaneously and generate extruding force, at this point, loosening hand
Handle, the compressed energy of holddown spring start to discharge, and the direction for pushing piston and piston rod to close first clamping plate is mobile, the
The distance between one clamping plate and the second clamping plate reduce；
3), when a side of the first sphere contacts traction sheave, the first pressure sensor on the first ball sends letter
Number controller is given, controller starts the first electromagnet, and the first electromagnet and traction sheave generate attraction, adsorbs the first electromagnet
On the traction sheave, the first clamping plate is fixed on a side of traction sheave；
4), when another side of the second sphere contacts traction sheave, the second pressure sensor on the second ball is sent
For signal to controller, controller starts the second electromagnet, and the second electromagnet and traction sheave generate attraction, inhale the second electromagnet
It is attached on the traction sheave, the second clamping plate is fixed on another side of traction sheave；
5) LED lamp bead on illuminatian plate, is opened, starts camera unit, takes pictures, will clap to the race of traction sheave lower end
The photo taken the photograph is imported into computer, and photo is then amplified to actual size, traction sheave flute size is measured, by itself and race
Manufactured size be compared, the wear condition of analytical calculation traction sheave race.
Compared with prior art, the invention has the following advantages that
1, according to the size of traction sheave, the distance between adjustable illuminatian plate and fixed plate make camera unit just
To the bottom of traction sheave, it can be clearly captured the race of traction sheave, when traction size of wheel is smaller, start motor, drive
When rotating bar in drive shaft rotates clockwise, drive the first sliding block along the first slide bar to close to pedestal by the first interlocking lever
Direction sliding, by the second interlocking lever drive the second sliding block along the second slide bar to close to pedestal direction slide, reduce shine
The distance between isotropic disk and fixed plate；When traction size of wheel is larger, start motor, drives the rotating bar in drive shaft counterclockwise
When rotation, drives the first sliding block to slide along the first slide bar to the direction far from pedestal by the first interlocking lever, connect by second
Lever drives the second sliding block to slide along the second slide bar to the direction far from pedestal, increase between illuminatian plate and fixed plate away from
From；
2, testing staff clutches handle, by the first cavity of the gas extrusion in annular retractable air bag to piston cylinder, ring
Third reset spring in shape extension airbag is compressed, and the first empty cavity pressure increases, and pushes piston and piston rod to close to the
The direction of two clamping plates is mobile, increases the distance between the first clamping plate and the second clamping plate, raises handle, make under traction sheave
End is extend between the first clamping plate and the second clamping plate, when the first rubber block on illuminatian plate and the second rubber in fixed plate
When block contacts the wheel face of traction sheave, release handle, under the action of holddown spring, band piston and piston rod are to close to the first folder
The direction of tight plate is mobile, while the compressed energy of third reset spring starts to discharge, and annular retractable air bag is made to restore to the original state, from
It is evacuated in first cavity, the first cavity is interior to form negative pressure, accelerates piston to close to the movement of the direction of the first clamping plate, presss from both sides first
Under the clamping action of tight plate and the second clamping plate, so that the first rubber block and the second rubber block is contacted the wheel face of traction sheave always, prevent
Only camera unit shakes when taking pictures, and improves the accuracy of measurement；
3, under the action of holddown spring and third reset spring, the first clamping plate moves closer to one of them of traction sheave
Side, when the first sphere contacts traction sheave, the first pressure sensor on the first ball sends a signal to controller, controller
Start the first electromagnet, makes to generate attraction between the first electromagnet and traction sheave, the first clamping plate is fixed on the traction sheave,
Meanwhile second clamping plate move closer to another side of traction sheave, when the second sphere contacts traction sheave, on the second ball
Second pressure sensor sends a signal to controller, and controller starts the second electromagnet, makes between the second electromagnet and traction sheave
Attraction is generated, the second clamping plate is fixed on the traction sheave, it avoids detection device from inadvertently falling off, damages, moreover it is possible to
The both hands for liberating testing staff avoid lifting handle generation ache for a long time；
4, the present apparatus can detect the abrasion condition of race under the premise of not having to disassembly traction sheave, easy to operate, save
Shi Shengli.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this elevator traction sheave wear detector；
Fig. 2 is the cross-sectional view in Fig. 1 at A-A；
Fig. 3 is the cross-sectional view in Fig. 1 at B-B.
In figure, 1, pedestal；11, the first slide bar；111, first baffle；12, the first sliding block；121, first through hole；13, it illuminates
Plate；131, LED lamp bead；132, the first rubber block；14, the second slide bar；141, second baffle；15, the second sliding block；151, second is logical
Hole；16, fixed plate；161, it perforates；162, camera unit；163, the second rubber block；17, installation cavity；18, battery；19, it controls
Device；2, motor；21, drive shaft；22, rotating bar；23, the first interlocking lever；24, the second interlocking lever；3, piston cylinder；31, first is empty
Chamber；32, the second cavity；321, air hole；33, the first clamping plate；331, third through-hole；34, the first electromagnet；35, first is living
Lever；351, the first ball；352, the first limit plate；353, first back-moving spring；4, piston rod；41, piston；42, bullet is compressed
Spring；43, the second clamping plate；431, fourth hole；44, the second electromagnet；45, the second motion bar；451, the second ball；452,
Two limit plates；453, second back-moving spring；5, handle；51, annular groove；52, annular retractable air bag；521, third resets bullet
Spring；6, traction sheave；61, race.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figures 1 to 3, a kind of elevator traction sheave wear detector, including 1, two the first slide bar 11, two of pedestal
Second slide bar 14, driving mechanism and clamping device.
The cross section of the pedestal 1 is in rectangle.
Two first slide bars 11 are horizontally set on the left side wall of pedestal 1, and two first slide bars 11 are set in parallel
It sets and identical to the distance of 1 upper side of pedestal, two first slide bars 11 are installed with first baffle far from one end of pedestal 1
111, the first sliding block 12 is provided on two first slide bars 11, and level sets that there are two first through hole on first sliding block 12
121, first sliding block 12 is slidably arranged on two the first slide bars 11 by two first through hole 121, first sliding block
12 upper side is installed with illuminatian plate 13, and the illuminatian plate 13 is provided with several LED close to the side of pedestal 1 evenly and at intervals
Lamp bead 131, the left sidewall of the illuminatian plate 13 and pedestal 1, the LED lamp bead 131 are electrically connected with external power supply.
Preferably, several described LED lamp beads 131 are arranged in evenly and at intervals in illuminatian plate 13, two adjacent LEDs lamp bead
The distance between 131 be 8mm, and the edge of illuminatian plate 13 does not set lamp bead.
Two second slide bars 14 are horizontally set on the right side wall of pedestal 1, and two second slide bars 14 are set in parallel
It sets and identical to the distance of 1 upper side of pedestal, two second slide bars 14 are installed with second baffle far from one end of pedestal 1
141, the second sliding block 15 is provided on two second slide bars 14, and level sets that there are two the second through-holes on second sliding block 15
151, second sliding block 15 is slidably arranged on two the second slide bars 14 by two the second through-holes 151, second sliding block
15 upper side is installed with fixed plate 16, and the fixed plate 16 is equipped with perforation 161, and it is single to be installed with camera shooting in the perforation 161
Member 162, the 162 face illuminatian plate 13 of camera unit.
Preferably, the camera unit 162 uses CMOS industrial camera.
The driving mechanism can make the first sliding block 12 and the second sliding block 15 towards and away from sliding.
Illuminatian plate 13 and fixed plate 16 can be also secured on the wheel face of traction sheave 6 by the clamping device.
According to the size of traction sheave 6, the distance between adjustable illuminatian plate 13 and fixed plate 16, when traction sheave 6
When size is smaller, starts driving mechanism, slide in opposition the first sliding block 12 and the second sliding block 15, reduces illuminatian plate 13 and fixed plate
The distance between 16, when 6 size of traction sheave is larger, start driving mechanism, keeps the first sliding block 12 and the second sliding block 15 sliding opposite to each other
It is dynamic, increase the distance between illuminatian plate 13 and fixed plate 16, makes the lower end of the face traction sheave 6 always of camera unit 162, Neng Gouqing
The race 61 of 6 lower end of traction sheave is taken clearly；When the first rubber block 132 on illuminatian plate 13 and the second rubber in fixed plate 16
When offset plate 163 contacts the wheel face of traction sheave 6 simultaneously, illuminatian plate 13 and fixed plate 16 are fixed on by traction sheave 6 by clamping device
Wheel face on, then open LED lamp bead 131, LED lamp bead 131 illuminates the race 61 of 6 lower end of traction sheave, starts camera unit 162
It takes pictures, photo is delivered on computer and is compared with the manufactured size of traction sheave 6,6 race 61 of analytical calculation traction sheave
Wear condition, it is simple and practical；In addition, operator does not have to disassembly traction sheave 6 using the device, so that it may detect traction sheave 6
The abrasion condition of race 61, it is easy to operate, it is time saving and energy saving.
Specifically, the driving mechanism includes motor 2, drive shaft 21, the first interlocking lever 23 and the second interlocking lever 24.
It is equipped with installation cavity 17 in the pedestal 1, the motor 2 is installed in the bottom of installation cavity 17.
The drive shaft 21 is vertically rotatably arranged on the upper side of pedestal 1, and the lower end of the drive shaft 21 extends to peace
It behave affectedly in 17 and the output shaft fixed connection of end and motor 2, the upper end level of the drive shaft 21 is installed with rotating bar 22.
One end of first interlocking lever 23 and one end of rotating bar 22 are hinged, the other end hinge of first interlocking lever 23
It connects on the upper side of the first sliding block 12.
One end of second interlocking lever 24 and the other end of rotating bar 22 are hinged, the other end of second interlocking lever 24
It is hinged on the upper side of the second sliding block 15.
When 6 size of traction sheave is smaller, start motor 2, when the rotating bar 22 in drive shaft 21 being driven to rotate clockwise, leads to
Crossing the first interlocking lever 23 drives the first sliding block 12 to slide along the first slide bar 11 to the direction close to pedestal 1, interlocks by second
Bar 24 drives the second sliding block 15 to slide along the second slide bar 14 to the direction close to pedestal 1, reduces illuminatian plate 13 and fixed plate 16
The distance between；When 6 size of traction sheave is larger, start motor 2, the rotating bar 22 in drive shaft 21 is driven to rotate counterclockwise
When, it drives the first sliding block 12 to slide along the first slide bar 11 to the direction far from pedestal 1 by the first interlocking lever 23, passes through second
Interlocking lever 24 drives the second sliding block 15 to slide along the second slide bar 14 to the direction far from pedestal 1, increases illuminatian plate 13 and fixes
The distance between plate 16 passes through the distance between adjustable first sliding block 12 of the rotation of motor 2 and second sliding block 15, structure letter
Single, transmission efficiency is high.
Specifically, the downside of the pedestal 1 is installed with handle 5 vertically.
The handle 5 is taken detection device convenient for testing staff, in addition, when needing to shoot the different location of race 61,
Clamping device is opened, handle 5 is moved down, the wheel face of illuminatian plate 13 and fixed plate 16 and traction sheave 6 is detached from, then makes traction sheave 6
It turns an angle, moves up handle 5, illuminatian plate 13 and fixed plate 16 is made to contact the wheel face of traction sheave 6 again, repeat above-mentioned dynamic
Make, the photo of different location race 61 is shot by camera unit 162, the wear condition of complete detection traction sheave 6 improves detection
Accuracy.
Specifically, the clamping device includes piston cylinder 3, piston rod 4, the first clamping plate 33,43 and of the second clamping plate
Driving mechanism.
3 level of piston cylinder is installed on the downside of pedestal 1, before the length direction and pedestal 1 of the piston cylinder 3
Rear wall is vertical.
The piston rod 4 is slidably arranged in piston cylinder 3, and 4 end of piston rod in piston cylinder 3 is installed with piston
41, the piston 41 from left to right will successively be separated into the first cavity 31 and the second cavity 32, the piston rod inside piston cylinder 3
Holddown spring 42 is arranged on 4, the holddown spring 42 is located between piston 41 and the right side wall of the second cavity 32, and described second
Perforation is equipped with air hole 321 on the right side wall of cavity 32.
First clamping plate 33 is installed in the left side of piston cylinder 3 vertically.
Second clamping plate 43 is installed in the right side of piston rod 4 vertically.
The driving unit is able to drive piston rod 4 and slides in piston cylinder 3, adjusts the first clamping plate 33 and second and clamps
The distance between plate 43.
Original state slides piston rod 4 to one end far from piston cylinder 3 by driving unit, and holddown spring 42 is pressed
Contracting increases the distance between the first clamping plate 33 and the second clamping plate 43, moves up handle 5, and the lower end of traction sheave 6 is made to extend into the
Between one clamping plate 33 and the second clamping plate 43, piston rod 4 is slided into piston cylinder 3 by driving unit, reduce the first folder
Tight the distance between plate 33 and the second clamping plate 43, final first clamping plate 33 and the second clamping plate 43 are by the two sides of traction sheave 6
It clamps, along with the pressuring action of holddown spring 42, illuminatian plate 13 and fixed plate 16 is made to contact the wheel face of traction sheave 6 always, prevent
It shakes when only camera unit 162 is taken pictures, improves the accuracy of detection.
Specifically, the driving unit includes annular retractable air bag 52, and the handle 5 is equipped with annular groove 51, institute
It states and is equipped with annular retractable air bag 52 in annular groove 51, be equipped with several third reset springs in the annular retractable air bag 52
521, the annular retractable air bag 52 is connected by hose with the first cavity 31 of piston cylinder 3.
Testing staff clutches handle 5, and the gas extrusion in annular retractable air bag 52 is entered to the first cavity 31 of piston cylinder 3
Interior, the third reset spring 521 in annular retractable air bag 52 is compressed, and piston 41 and piston rod 4 is pushed to clamp to close to second
The direction of plate 43 is mobile, increases the distance between the first clamping plate 33 and the second clamping plate 43, testing staff's release handle 5, In
Under the action of holddown spring 42, the direction with piston 41 and piston rod 4 to close first clamping plate 33 is mobile, while third is multiple
The position compressed energy of spring 521 starts to discharge, and so that annular retractable air bag 52 is restored to the original state, is evacuated out of first cavity 31, the
Negative pressure is formed in one cavity 31, accelerates piston 41 to close to the movement of the direction of the first clamping plate 33, reduces 33 He of the first clamping plate
The distance between second clamping plate 43, by testing staff to the extruding force of annular retractable air bag 52, to adjust the first clamping plate
33 and second the distance between the clamping plate 43, it is easy to operate.
Specifically, the top of the fixed plate 13 is equipped with the first section, and first section is from left to right diagonally downward
And it is installed with the first rubber block 132, the top of the fixed plate 16 is equipped with the second section, and second section from left to right tilts
Upwards and it is installed with the second rubber block 163.
When illuminatian plate 13 and fixed plate 16 move up the wheel face contact with traction sheave 6, the first rubber block 132 and second
Rubber block 163 plays buffer function, avoids that rigid collision occurs with the wheel face of traction sheave 6, damages；In addition, the first rubber
Block 132 and the second rubber block 163 can increase the contact area with 6 wheel face of traction sheave, make the position of illuminatian plate 13 and fixed plate 16
Setting will not shift, and influence the shooting effect of camera unit 162.
Specifically, first clamping plate 33 is installed with the first electromagnet 34, institute close to the side of the second clamping plate 43
It states the second clamping plate 43 and is installed with the second electromagnet 44 close to the side of the first clamping plate 33, the downside of the pedestal 1 is equipped with
Battery 18 and controller 19, first electromagnet 34 and the second electromagnet 44 are electrically connected by controller 19 with battery 18
It connects.
When piston rod 4 is slided into piston cylinder 3, reduce the distance between the first clamping plate 33 and the second clamping plate 43
To the side of contact traction sheave 6, starts the first electromagnet 34 and the second electromagnet 44 at this time, make the first electromagnet 34 and traction sheave
6 side generates attraction, and the other side of the second electromagnet 44 and traction sheave 6 generates attraction, by the first clamping plate 33 and the
Two clamping plates 43 are fixed on the two sides of traction sheave 6, avoid detection device from inadvertently falling off, damage, moreover it is possible to liberation detection
The both hands of personnel avoid lifting handle generation ache for a long time.
Specifically, the top of first clamping plate 33 is equipped with third through-hole 331, plugs in the third through-hole 331
There is the first motion bar 35, the right end of first motion bar 35 stretches out third through-hole 331 and end is installed with the first ball 351,
The distance between described first ball, 351 to the first clamping plate 33 be greater than first the 34 to the first clamping plate of electromagnet 33 between away from
From third through-hole 331 is stretched out in the left end of first motion bar 35 and end is installed with the first limit plate 352, and described first is living
First back-moving spring 353 is arranged in lever 35, the first back-moving spring 353 is located at the first limit plate 352 and first and clamps
Between plate 33, first ball 351 is equipped with first pressure sensor, and the first pressure sensor is electrically connected with controller 19
It connects.
Under the action of holddown spring 42 and third reset spring 521, the first clamping plate 33 moves closer to its of traction sheave 6
In a side, when the first ball 351 contacts traction sheave 6, the first pressure sensor on the first ball 351 is sent a signal to
Controller 19, controller 19 start the first electromagnet 34, and the first electromagnet 34 is made to generate attraction, the first electromagnetism with traction sheave 6
Iron 34 is adsorbed on the side of traction sheave 6, and the first clamping plate 33 is fixed on traction sheave 6, at this time on the first motion bar 35
First back-moving spring 353 is stretched, and after detection, closes the first electromagnet 34, removes the first clamping plate 33, and first resets
The energy that spring 353 is stretched starts to discharge, and the first motion bar 35 and the first ball 351 is pushed to move to the direction close to pedestal 1
It moves to initial position, the opening and closing of the first electromagnet 34 is automatically controlled by first pressure sensor, is simple and efficient.
Specifically, the top of second clamping plate 43 is equipped with fourth hole 431, plugs in the fourth hole 431
There is the second motion bar 45, the left end of second motion bar 45 stretches out fourth hole 431 and end is installed with the second ball 451,
The right end of second motion bar 45 stretches out fourth hole 431 and end is installed with the second limit plate 452, second motion bar
Second back-moving spring 453 is arranged on 45, the second back-moving spring 453 is located at the second limit plate 452 and the second clamping plate 43
Between, second ball 451 is equipped with second pressure sensor, and the second pressure sensor is electrically connected with controller 19.
Under the action of holddown spring 42 and third reset spring 521, the second clamping plate 43 moves closer to the another of traction sheave 6
One side, when the second ball 451 contacts traction sheave 6, the second pressure sensor on the second ball 451 sends a signal to control
Device 19 processed, controller 19 start the second electromagnet 44, and the second electromagnet 44 is made to generate attraction, the second electromagnet with traction sheave 6
44 are adsorbed on the side of traction sheave 6, and the second clamping plate 43 is fixed on traction sheave 6, at this time on the second motion bar 45
Two reset springs 453 are stretched, and after detection, close the second electromagnet 44, remove the second clamping plate 43, and second resets bullet
The energy that spring 453 is stretched starts to discharge, and pushes the second motion bar 45 and the second ball 451 to close to the movement of the direction of pedestal 1
To initial position, the opening and closing of the second electromagnet 44 is automatically controlled by second pressure sensor, is simple and efficient.
A kind of detection method of elevator traction sheave wear detector, comprising the following steps:
1) handle 5, is clutched, the annular retractable air bag 52 on handle 5 is squeezed, the gas quilt in annular retractable air bag 52
It being expressed in the first cavity 31, pushes piston 41 to close to the movement of the direction of the second clamping plate 43, holddown spring 42 is compressed, the
The distance between one clamping plate 33 and the second clamping plate 43 increase；
2), start motor 2, the distance between illuminatian plate 13 and fixed plate 16 are adjusted according to the size of traction sheave 6, then lifted
Handle 5 is played, so that the first rubber block 132 and the second rubber block 163 is in contact simultaneously with the wheel face of traction sheave 6, at this point, release handle
5, the compressed energy of holddown spring 42 starts to discharge, and pushes piston 41 and piston rod 4 to the direction close to the first clamping plate 33
Mobile, the distance between the first clamping plate 33 and the second clamping plate 43 reduce；
3) first pressure sensor, when a side of the first ball 351 contact traction sheave 6, on the first ball 351
Controller 19 is sent a signal to, controller 19 starts the first electromagnet 34, and the first electromagnet 34 and traction sheave 6 generate attraction,
It is adsorbed on the first electromagnet 34 on traction sheave 6, the first clamping plate 33 is fixed on a side of traction sheave 6；
4) the second pressure sensing, when another side of the second ball 451 contact traction sheave 6, on the second ball 451
Device sends a signal to controller 19, and controller 19 starts the second electromagnet 44, and the second electromagnet 44 and traction sheave 6 generate attraction
Power is adsorbed on the second electromagnet 44 on traction sheave 6, and the second clamping plate 43 is fixed on another side of traction sheave 6；
5), open the LED lamp bead 131 on illuminatian plate 13, start camera unit 162, to the race 61 of 6 lower end of traction sheave into
Row is taken pictures, and the photo of shooting is imported into computer, and photo is then amplified to actual size, measures 6 race 61 of traction sheave
It is compared size with the manufactured size of race 61, the wear condition of 6 race 61 of analytical calculation traction sheave.
Testing staff holds with a firm grip handle 5, squeezes annular extension airbag 52, and the blowing pressure increases in the first cavity 31, pushes and lives
Plug 41 and piston rod 4 are mobile to the direction far from piston cylinder 3, increase between the first clamping plate 33 and the second clamping plate 43 away from
From then moving up handle 5, extend into the lower end of traction sheave 6 between first clamping plate 33 and the second clamping plate 43, pass through motor
2 rotation adjusts the distance between illuminatian plate 13 and fixed plate 16, makes the lower end of 162 face traction sheave 6 of camera unit, then puts
It looses one's grip handle 5, under the action of holddown spring 42 and third reset spring 521, annular retractable air bag 52 is taken out out of first cavity 31
Gas, the interior formation negative pressure of the first cavity 31, pushes piston 41 and piston rod 4 to slide into piston cylinder 3, the first clamping plate 33 and second
Clamping plate 43, which moves towards, clamps traction sheave 6, and detection device is fixed on traction sheave 6, is then clapped by camera unit 162
Photo is taken the photograph, photo is imported into computer, is then amplified to after actual size and compares meter with the manufactured size of traction sheave 6
It calculates, the accurate wear condition for detecting 6 race 61 of traction sheave is easy to operate, time saving and energy saving.
In the description of this patent, it is to be understood that the orientation or position of the instructions such as term " on ", "lower", "inner", "outside"
Setting relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description this patent and simplifies description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is understood as a limitation of this patent.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (10)
1. a kind of elevator traction sheave wear detector characterized by comprising pedestal (1), the cross section of the pedestal (1)
In rectangle；
Two the first slide bars (11), two first slide bars (11) are horizontally set on the left side wall of pedestal (1), described in two
First slide bar (11) is installed with first baffle (111) far from the one end of pedestal (1), is slided and is set on two first slide bars (11)
It is equipped with the first sliding block (12), the upper side of first sliding block (12) is installed with illuminatian plate (13), and the illuminatian plate (13) is close
The side of pedestal (1) is equipped with several LED lamp beads (131), the left sidewall of the illuminatian plate (13) and pedestal (1)；
Two the second slide bars (14), two second slide bars (14) are horizontally set on the right side wall of pedestal (1), described in two
Second slide bar (14) is installed with second baffle (141) far from the one end of pedestal (1), is slided and is set on two second slide bars (14)
It is equipped with the second sliding block (15), the upper side of second sliding block (15) is installed with fixed plate (16), is set on the fixed plate (16)
Have perforation (161), is equipped with camera unit (162) in the perforation (161), camera unit (162) the face illuminatian plate (13)；
Driving mechanism, the driving mechanism can make the first sliding block (12) and the second sliding block (15) towards and away from sliding；
Illuminatian plate (13) and fixed plate (16) can be also secured to the wheel of traction sheave (6) by clamping device, the clamping device
On face.
2. elevator traction sheave wear detector according to claim 1, which is characterized in that the driving mechanism includes:
Motor (2), the pedestal (1) is interior to be equipped with installation cavity (17), and the motor (2) is installed in installation cavity (17)；
Drive shaft (21), the drive shaft (21) are vertically rotatably arranged on the upper side of pedestal (1), the drive shaft (21)
Lower end extends in installation cavity (17) and the output shaft of end and motor (2) is sequentially connected, the upper end water of the drive shaft (21)
It is flat to be installed with rotating bar (22)；
First interlocking lever (23), one end of first interlocking lever (23) and one end of rotating bar (22) are hinged, and described first connects
The other end of lever (23) is hinged on the upper side of the first sliding block (12)；
Second interlocking lever (24), one end of second interlocking lever (24) and the other end of rotating bar (22) are hinged, and described second
The other end of interlocking lever (24) is hinged on the upper side of the second sliding block (15).
3. elevator traction sheave wear detector according to claim 2, which is characterized in that the downside of the pedestal (1)
Face is installed with handle (5) vertically.
4. elevator traction sheave wear detector according to claim 3, which is characterized in that the clamping device includes:
Piston cylinder (3), piston cylinder (3) level are installed on the downside of pedestal (1), the length side of the piston cylinder (3)
To vertical with the front-rear side walls of pedestal (1)；
Piston rod (4), the piston rod (4) are slidably arranged in piston cylinder (3), are located at piston rod (4) end in piston cylinder (3)
Portion is installed with piston (41), the piston (41) from left to right will successively be separated into inside piston cylinder (3) the first cavity (31) and
Second cavity (32) is arranged with holddown spring (42) on the piston rod (4), the holddown spring (42) be located at piston (41) and
Between the right side wall of second cavity (32), perforation is equipped with air hole (321) on the right side wall of second cavity (32)；
First clamping plate (33), first clamping plate (33) are installed in the left side of piston cylinder (3) vertically；
Second clamping plate (43), second clamping plate (43) are installed in the right side of piston rod (4) vertically；
Driving unit, the driving unit are able to drive piston rod (4) sliding in piston cylinder (3), adjust the first clamping plate
(33) and the distance between the second clamping plate (43).
5. elevator traction sheave wear detector according to claim 4, which is characterized in that the driving unit includes ring
Shape extension airbag (52), the handle (5) are equipped with annular groove (51), and annular retractable gas is equipped in the annular groove (51)
Capsule (52), the annular retractable air bag (52) is interior to be equipped with several third reset springs (521), the annular retractable air bag (52)
It is connected by hose with the first cavity (31) of piston cylinder (3).
6. elevator traction sheave wear detector according to claim 5, which is characterized in that the top of the fixed plate (13)
Portion is equipped with the first section, and first section from left to right diagonally downward and is installed with the first rubber block (132), the fixed plate
(16) top is equipped with the second section, and second section from left to right tilts upward and is installed with the second rubber block (163).
7. elevator traction sheave wear detector according to claim 6, which is characterized in that first clamping plate (33)
Side close to the second clamping plate (43) is installed with the first electromagnet (34), and second clamping plate (43) is close to the first clamping plate
(33) side is installed with the second electromagnet (44), and the downside of the pedestal (1) is equipped with battery (18) and controller (19),
First electromagnet (34) and the second electromagnet (44) are electrically connected by controller (19) with battery (18).
8. elevator traction sheave wear detector according to claim 7, which is characterized in that first clamping plate (33)
Top be equipped with third through-hole (331), is inserted with the first motion bar (35) in the third through-hole (331), first activity
The right end of bar (35) stretches out third through-hole (331) and end is installed with the first ball (351), a left side for first motion bar (35)
Third through-hole (331) are stretched out at end and end is installed with the first limit plate (352), are arranged with first on first motion bar (35)
Reset spring (353), the first back-moving spring (353) is between the first limit plate (352) and the first clamping plate (33), institute
The first ball (351) are stated equipped with first pressure sensor, the first pressure sensor is electrically connected with controller (19).
9. elevator traction sheave wear detector according to claim 8, which is characterized in that second clamping plate (43)
Top be equipped with fourth hole (431), is inserted with the second motion bar (45) in the fourth hole (431), second activity
The left end of bar (45) stretches out fourth hole (431) and end is installed with the second ball (451), the right side of second motion bar (45)
Fourth hole (431) are stretched out at end and end is installed with the second limit plate (452), are arranged with second on second motion bar (45)
Reset spring (453), the second back-moving spring (453) is between the second limit plate (452) and the second clamping plate (43), institute
The second ball (451) are stated equipped with second pressure sensor, the second pressure sensor is electrically connected with controller (19).
10. a kind of detection method of elevator traction sheave wear detector, which comprises the following steps:
1) it, clutches handle (5), the annular retractable air bag (52) on handle (5) is squeezed, the gas in annular retractable air bag (52)
Body is extruded in the first cavity (31), pushes piston (41) mobile to the direction close to the second clamping plate (43), holddown spring
(42) it is compressed, the distance between the first clamping plate (33) and the second clamping plate (43) increase；
2), start motor (2), the distance between illuminatian plate (13) and fixed plate (16) are adjusted according to the size of traction sheave (6), so
After lift handle (5), so that the first rubber block (132) and the second rubber block (163) is in contact simultaneously with the wheel face of traction sheave (6),
At this point, release handle (5), holddown spring (42) compressed energy starts to discharge, and pushes piston (41) and piston rod (4) to leaning on
The direction of nearly first clamping plate (33) is mobile, and the distance between the first clamping plate (33) and the second clamping plate (43) reduce；
3) the first pressure sensing, when a side of the first ball (351) contact traction sheave (6), on the first ball (351)
Device is sent a signal to controller (19), and controller (19) starts the first electromagnet (34), the first electromagnet (34) and traction sheave (6)
Attraction is generated, is adsorbed on the first electromagnet (34) on traction sheave (6), the first clamping plate (33) is fixed on traction sheave (6)
A side on；
4), when another side of the second ball (451) contact traction sheave (6), the second pressure on the second ball (451) is passed
Sensor is sent a signal to controller (19), and controller (19) starts the second electromagnet (44), the second electromagnet (44) and traction sheave
(6) attraction is generated, is adsorbed on the second electromagnet (44) on traction sheave (6), the second clamping plate (43) is fixed on traction sheave
(6) on another side；
5) LED lamp bead (131) on illuminatian plate (13), is opened, is started camera unit (162), to the race of traction sheave (6) lower end
(61) it takes pictures, the photo of shooting is imported into computer, photo is then amplified to actual size, measure traction sheave
(6) it is compared race (61) size with the manufactured size of race (61), analytical calculation traction sheave (6) race (61)
Wear condition.
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| CN201910803808.6A CN110498315B (en) | 2019-08-28 | 2019-08-28 | Elevator traction sheave wear detection device and detection method |
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| CN201910803808.6A CN110498315B (en) | 2019-08-28 | 2019-08-28 | Elevator traction sheave wear detection device and detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797919A (en) * | 2021-01-29 | 2021-05-14 | 广东省特种设备检测研究院珠海检测院 | Three-dimensional size detection method for elevator traction sheave groove |
| CN114684685A (en) * | 2022-04-09 | 2022-07-01 | 陈文杰 | Elevator safety detection device and using method thereof |
| US11718501B2 (en) | 2020-04-06 | 2023-08-08 | Otis Elevator Company | Elevator sheave wear detection |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0547365A2 (en) * | 1991-12-16 | 1993-06-23 | Bridgestone Corporation | Method and apparatus for measuring tyre parameters |
| JPH07260456A (en) * | 1994-03-17 | 1995-10-13 | Nissan Motor Co Ltd | Method and apparatus for detection of unevenness |
| JPH1096616A (en) * | 1996-07-09 | 1998-04-14 | Fanuc Ltd | Tool tip defect inspecting system |
| JPH116716A (en) * | 1997-06-16 | 1999-01-12 | Hitachi Building Syst Co Ltd | Groove shape measuring apparatus for grooving wheel |
| US20030111298A1 (en) * | 2001-12-19 | 2003-06-19 | Logan Douglas E. | Load bearing member for use in an elevator system having external markings for indicating a condition of the assembly |
| CN104229598A (en) * | 2014-09-19 | 2014-12-24 | 洛阳泰斯特探伤技术有限公司 | On-line nondestructive flaw detection device for wire ropes lifted by moving head sheaves |
| CN104627762A (en) * | 2014-12-05 | 2015-05-20 | 中国矿业大学 | Detection system and detection method of friction elevator rope groove wear loss |
| CN205500501U (en) * | 2016-02-18 | 2016-08-24 | 杭州德睿电梯传动轮有限公司 | Steel wire groove detection device of elevator drive wheel |
| CN206124811U (en) * | 2016-08-30 | 2017-04-26 | 成都唐源电气股份有限公司 | Single track contact wire wearing and tearing detection device and contact wire image acquisition module |
| CN107150700A (en) * | 2017-03-24 | 2017-09-12 | 东莞市诺丽电子科技有限公司 | Train wheel flat detection method |
| CN108059050A (en) * | 2017-12-29 | 2018-05-22 | 广东省特种设备检测研究院珠海检测院 | A kind of elevator traction sheave race wear condition non-contact detection device and detection method |
| CN208086998U (en) * | 2018-04-10 | 2018-11-13 | 高峰 | A kind of elevator traction sheave wear detector |
| CN208361628U (en) * | 2018-06-08 | 2019-01-11 | 江苏中矿科汇矿业科技有限公司 | A kind of multi-rope friction hoisting machine head sheave video monitoring apparatus |
| CN208952898U (en) * | 2018-12-05 | 2019-06-07 | 沈阳聚德视频技术有限公司 | A kind of elevator traction sheave wear condition intelligent visual detection instrument |
-
2019
- 2019-08-28 CN CN201910803808.6A patent/CN110498315B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0547365A2 (en) * | 1991-12-16 | 1993-06-23 | Bridgestone Corporation | Method and apparatus for measuring tyre parameters |
| JPH07260456A (en) * | 1994-03-17 | 1995-10-13 | Nissan Motor Co Ltd | Method and apparatus for detection of unevenness |
| JPH1096616A (en) * | 1996-07-09 | 1998-04-14 | Fanuc Ltd | Tool tip defect inspecting system |
| JPH116716A (en) * | 1997-06-16 | 1999-01-12 | Hitachi Building Syst Co Ltd | Groove shape measuring apparatus for grooving wheel |
| US20030111298A1 (en) * | 2001-12-19 | 2003-06-19 | Logan Douglas E. | Load bearing member for use in an elevator system having external markings for indicating a condition of the assembly |
| CN104229598A (en) * | 2014-09-19 | 2014-12-24 | 洛阳泰斯特探伤技术有限公司 | On-line nondestructive flaw detection device for wire ropes lifted by moving head sheaves |
| CN104627762A (en) * | 2014-12-05 | 2015-05-20 | 中国矿业大学 | Detection system and detection method of friction elevator rope groove wear loss |
| CN205500501U (en) * | 2016-02-18 | 2016-08-24 | 杭州德睿电梯传动轮有限公司 | Steel wire groove detection device of elevator drive wheel |
| CN206124811U (en) * | 2016-08-30 | 2017-04-26 | 成都唐源电气股份有限公司 | Single track contact wire wearing and tearing detection device and contact wire image acquisition module |
| CN107150700A (en) * | 2017-03-24 | 2017-09-12 | 东莞市诺丽电子科技有限公司 | Train wheel flat detection method |
| CN108059050A (en) * | 2017-12-29 | 2018-05-22 | 广东省特种设备检测研究院珠海检测院 | A kind of elevator traction sheave race wear condition non-contact detection device and detection method |
| CN208086998U (en) * | 2018-04-10 | 2018-11-13 | 高峰 | A kind of elevator traction sheave wear detector |
| CN208361628U (en) * | 2018-06-08 | 2019-01-11 | 江苏中矿科汇矿业科技有限公司 | A kind of multi-rope friction hoisting machine head sheave video monitoring apparatus |
| CN208952898U (en) * | 2018-12-05 | 2019-06-07 | 沈阳聚德视频技术有限公司 | A kind of elevator traction sheave wear condition intelligent visual detection instrument |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11718501B2 (en) | 2020-04-06 | 2023-08-08 | Otis Elevator Company | Elevator sheave wear detection |
| CN112797919A (en) * | 2021-01-29 | 2021-05-14 | 广东省特种设备检测研究院珠海检测院 | Three-dimensional size detection method for elevator traction sheave groove |
| CN114684685A (en) * | 2022-04-09 | 2022-07-01 | 陈文杰 | Elevator safety detection device and using method thereof |
| CN114684685B (en) * | 2022-04-09 | 2024-02-20 | 浙江德茵智能制造有限公司 | Elevator safety detection device and use method thereof |
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