CN110498315B - Elevator traction sheave wear detection device and detection method - Google Patents
Elevator traction sheave wear detection device and detection method Download PDFInfo
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- CN110498315B CN110498315B CN201910803808.6A CN201910803808A CN110498315B CN 110498315 B CN110498315 B CN 110498315B CN 201910803808 A CN201910803808 A CN 201910803808A CN 110498315 B CN110498315 B CN 110498315B
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- 238000001514 detection method Methods 0.000 title claims abstract description 44
- 238000005299 abrasion Methods 0.000 claims abstract description 12
- 239000011324 bead Substances 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000005286 illumination Methods 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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 invention provides a device and a method for detecting abrasion of an elevator traction sheave, and belongs to the technical field of elevator detection equipment. The LED lamp comprises a base, two first sliding rods, two second sliding rods, a driving mechanism and a clamping mechanism, wherein the two first sliding rods are horizontally arranged on the left side wall of the base, first sliding blocks are arranged on the two first sliding rods in a sliding mode, an illuminating plate is fixedly arranged on the upper side face of each first sliding block, a plurality of LED lamp beads are arranged on one side, close to the base, of the illuminating plate, the two second sliding rods are horizontally arranged on the right side wall of the base, second sliding blocks are arranged on the two second sliding rods in a sliding mode, a fixing plate is fixedly arranged on the upper side face of each second sliding block, a camera shooting unit is arranged on the fixing plate, the driving mechanism can enable the first sliding blocks and the second sliding blocks to slide oppositely and oppositely, and the clamping mechanism can simultaneously fix the illuminating plate and the fixing plate on the wheel face of a traction wheel. The invention can quickly, accurately and comprehensively detect the wear condition of the traction sheave.
Description
Technical Field
The invention belongs to the technical field of elevator detection equipment, and relates to an elevator traction sheave wear detection device and a detection method.
Background
The elevator is used as a main vertical transport tool in a building, and the elevator is mainly structurally characterized in that a lift car is connected with a counterweight device through a traction steel wire rope, the traction steel wire rope is driven by a traction machine to control the operation of the elevator, the traction steel wire rope is wound on a traction wheel, the lift car is hung at one end of the traction steel wire rope, the counterweight device is hung at one end of the traction steel wire rope, a driving force generated by friction between the traction steel wire rope and a traction wheel groove drives the lift car to move up and down, and the elevator is driven to operate by using the pressure of the steel wire rope on the wheel groove and the friction force generated by.
Along with the increase of the service life of the traction sheave groove, the sheave groove of the traction sheave is worn, along with the increase of the wear loss, the shape of the sheave groove is changed, so that the friction force between the traction steel wire rope and the sheave groove is reduced, accidents such as car sliding, car accidents and the like occur, according to related requirements, when the sheave groove of the traction sheave is worn to a certain range, the traction sheave needs to be repaired or replaced in time, and if the elevator is not repaired or replaced in time, the safe operation of the elevator and the personal safety are affected.
At present, the abrasion of the sheave groove of the traction sheave is mostly measured by a traditional ruler, the measuring time is long, the accuracy of the measuring result is not high, and the abrasion condition of the sheave groove of the traction sheave cannot be reasonably judged.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a device and a method for detecting the abrasion of a traction sheave of an elevator, which can quickly, accurately and comprehensively detect the abrasion condition of the traction sheave.
The purpose of the invention can be realized by the following technical scheme:
an elevator traction sheave wear detection device, comprising: a base, the cross-section of base is the rectangle:
the LED lamp comprises two first sliding rods, a base, a first baffle, a first sliding block, a lighting plate and a second sliding rod, wherein the two first sliding rods are horizontally arranged on the left side wall of the base, one ends, far away from the base, of the two first sliding rods are fixedly provided with the first baffle, the two first sliding rods are provided with the first sliding block in a sliding mode, the upper side face of the first sliding block is fixedly provided with the lighting plate, one side, close to the base, of the lighting plate is provided with a plurality of LED lamp beads, and the lighting plate is;
the two second sliding rods are horizontally arranged on the right side wall of the base, a second baffle is fixedly arranged at one end, away from the base, of each second sliding rod, a second sliding block is arranged on each second sliding rod in a sliding mode, a fixing plate is fixedly arranged on the upper side face of each second sliding block, a through hole is formed in each fixing plate, a camera shooting unit is arranged in each through hole, and the camera shooting unit is opposite to the illumination plate;
the driving mechanism can enable the first sliding block and the second sliding block to slide towards and away from each other;
a clamping mechanism capable of simultaneously fixing the lighting plate and the fixing plate on the tread of the traction sheave.
In the above-described elevator traction sheave wear detection apparatus, the drive mechanism includes:
the motor is fixedly arranged in the mounting cavity;
the driving shaft is vertically and rotatably arranged on the upper side surface of the base, the lower end of the driving shaft extends into the mounting cavity, the end part of the driving shaft is in transmission connection with an output shaft of the motor, and a rotating rod is horizontally and fixedly arranged at the upper end of the driving shaft;
one end of the first linkage rod is hinged with one end of the rotating rod, and the other end of the first linkage rod is hinged on the upper side face of the first sliding block;
and one end of the second linkage rod is hinged with the other end of the rotating rod, and the other end of the second linkage rod is hinged on the upper side face of the second sliding block.
In the above elevator traction sheave wear detection device, a handle is vertically and fixedly arranged on the lower side surface of the base.
In the above-described elevator traction sheave wear detection apparatus, the gripping mechanism includes:
the piston cylinder is horizontally and fixedly arranged on the lower side surface of the base, and the length direction of the piston cylinder is vertical to the front side wall and the rear side wall of the base;
the piston rod is arranged in the piston cylinder in a sliding mode, a piston is fixedly arranged at the end portion of the piston rod positioned in the piston cylinder, the piston divides the interior of the piston cylinder into a first cavity and a second cavity from left to right in sequence, a compression spring is sleeved on the piston rod and positioned between the piston and the right side wall of the second cavity, and an air hole is formed in the right side wall of the second cavity in a penetrating mode;
the first clamping plate is vertically and fixedly arranged on the left side of the piston cylinder;
the second clamping plate is vertically and fixedly arranged on the right side of the piston rod;
and the driving unit can drive the piston rod to slide in the piston cylinder to adjust the distance between the first clamping plate and the second clamping plate.
In the elevator traction sheave wear detection device, the driving unit comprises an annular air bag, an annular groove is formed in the handle, an annular telescopic air bag is arranged in the annular groove, a plurality of third return springs are arranged in the annular telescopic air bag, and the annular telescopic air bag is communicated with the first cavity of the piston cylinder through a hose.
In the elevator traction sheave wear detection device, the top of the illumination plate is provided with a first tangent plane, the first tangent plane inclines downwards from left to right and is fixedly provided with a first rubber block, the top of the fixing plate is provided with a second tangent plane, and the second tangent plane inclines upwards from left to right and is fixedly provided with a second rubber block.
In foretell elevator driving sheave wear detection device, one side that first clamp plate is close to the second clamp plate has set firmly first electro-magnet, one side that the second clamp plate is close to first clamp plate has set firmly the second electro-magnet, the downside of base is equipped with battery and controller, first electro-magnet and second electro-magnet all are connected with the battery electricity through the controller.
In foretell elevator driving sheave wear detection device, the top of first clamp plate is equipped with the third through-hole, it is equipped with first slide bar to insert in the third through-hole, the right-hand member of first slide bar stretches out third through-hole and tip and has set firmly first ball, the left end of first slide bar stretches out third through-hole and tip and has set firmly first limiting plate, the cover is equipped with first reset spring on the first slide bar, first reset spring is located between first limiting plate and the first clamp plate, be equipped with first pressure sensor on the first ball, first pressure sensor is connected with the controller electricity.
In foretell elevator driving sheave wear detecting device, the top of second clamp plate is equipped with the fourth through-hole, the fourth through-hole is interior to be inserted and is equipped with the second slide bar, the left end of second slide bar stretches out fourth through-hole and tip and has set firmly the second ball, the right-hand member of second slide bar stretches out fourth through-hole and tip and has set firmly the second limiting plate, the cover is equipped with second reset spring on the second slide bar, second reset spring is located between second limiting plate and the second clamp plate, be equipped with second pressure sensor on the second ball, second pressure sensor is connected with the controller electricity.
A detection method of an elevator traction sheave wear detection device comprises the following steps:
1) the annular telescopic air bag on the handle is squeezed, air in the annular telescopic air bag is squeezed into the first cavity, the piston is pushed to move towards the direction close to the second clamping plate, the compression spring is compressed, and the distance between the first clamping plate and the second clamping plate is increased;
2) the distance between the lighting plate and the fixing plate is adjusted according to the size of the traction sheave, then the handle is lifted, the first rubber block and the second rubber block are simultaneously contacted with the sheave surface of the traction sheave and generate extrusion force, at the moment, the handle is loosened, the compressed energy of the compression spring is released, the piston and the piston rod are pushed to move towards the direction close to the first clamping plate, and the distance between the first clamping plate and the second clamping plate is reduced;
3) when the first ball contacts one side face of the traction sheave, the first pressure sensor on the first ball sends a signal to the controller, the controller starts the first electromagnet, the first electromagnet and the traction sheave generate attraction force, the first electromagnet is attracted to the traction sheave, and the first clamping plate is fixed on one side face of the traction sheave;
4) when the second ball contacts the other side face of the traction sheave, a second pressure sensor on the second ball sends a signal to the controller, the controller starts the second electromagnet, the second electromagnet and the traction sheave generate attraction force, the second electromagnet is attracted to the traction sheave, and the second clamping plate is fixed on the other side face of the traction sheave;
5) the LED lamp beads on the lighting plate are turned on, the camera shooting unit is started, the wheel groove at the lower end of the traction wheel is shot, the shot picture is guided into the computer, then the picture is amplified to the actual size, the size of the wheel groove of the traction wheel is measured, the size of the wheel groove of the traction wheel is compared with the manufacturing size of the wheel groove, and the abrasion condition of the wheel groove of the traction wheel is analyzed and calculated.
Compared with the prior art, the invention has the following advantages:
1. the distance between the lighting plate and the fixing plate can be adjusted according to the size of the traction sheave, so that the camera shooting unit is opposite to the lowest end of the traction sheave and can clearly shoot a wheel groove of the traction sheave; when the traction wheel is large in size, the motor is started to drive the rotating rod on the driving shaft to rotate anticlockwise, the first slide block is driven to slide along the first slide rod in the direction far away from the base through the first linkage rod, and the second slide block is driven to slide along the second slide rod in the direction far away from the base through the second linkage rod, so that the distance between the lighting plate and the fixed plate is increased;
2. the detector pinches the handle to extrude the gas in the annular telescopic air bag into the first cavity of the piston cylinder, the third return spring in the annular telescopic air bag is compressed, the pressure in the first cavity is increased to push the piston and the piston rod to move towards the direction close to the second clamping plate, the distance between the first clamping plate and the second clamping plate is increased, the handle is lifted to enable the lower end of the traction wheel to extend into the space between the first clamping plate and the second clamping plate, when the first rubber block on the lighting plate and the second rubber block on the fixing plate contact the wheel surface of the traction wheel, the handle is loosened, the piston and the piston rod are driven to move towards the direction close to the first clamping plate under the action of the compression spring, meanwhile, the compressed energy of the third return spring begins to be released to enable the annular telescopic air bag to recover, air is pumped out from the first cavity, negative pressure is formed in the first cavity, and the piston is accelerated to move towards the direction close to the first clamping plate, under the clamping action of the first clamping plate and the second clamping plate, the first rubber block and the second rubber block are always in contact with the wheel surface of the traction wheel, so that the camera shooting unit is prevented from shaking during shooting, and the measurement accuracy is improved;
3. under the action of the pressing spring and the third return spring, the first clamping plate is gradually close to one side surface of the traction sheave, when the first round ball contacts the traction sheave, the first pressure sensor on the first round ball sends a signal to the controller, the controller starts the first electromagnet, so that attraction force is generated between the first electromagnet and the traction sheave, the first clamping plate is fixed on the traction sheave, meanwhile, the second clamping plate is gradually close to the other side face of the traction wheel, when the second round ball contacts the traction wheel, a second pressure sensor on the second round ball sends a signal to the controller, the controller starts the second electromagnet, attraction force is generated between the second electromagnet and the traction wheel, the second clamping plate is fixed on the traction wheel, the detection device is prevented from accidentally falling to cause damage, the hands of a detector can be liberated, and the ache caused by long-time lifting of the handle is avoided;
4. the device can detect the abrasion condition of the wheel groove without detaching the traction wheel, and has simple operation, time saving and labor saving.
Drawings
Fig. 1 is a schematic structural view of the wear detecting device for the traction sheave of an elevator;
FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;
fig. 3 is a cross-sectional view at B-B in fig. 1.
In the figure, 1, a base; 11. a first slide bar; 111. a first baffle plate; 12. a first slider; 121. a first through hole; 13. a lighting panel; 131. LED lamp beads; 132. a first rubber block; 14. a second slide bar; 141. a second baffle; 15. a second slider; 151. a second through hole; 16. a fixing plate; 161. perforating; 162. an image pickup unit; 163. a second rubber block; 17. a mounting cavity; 18. a storage battery; 19. a controller; 2. a motor; 21. a drive shaft; 22. rotating the rod; 23. a first linkage rod; 24. a second linkage rod; 3. a piston cylinder; 31. a first cavity; 32. a second cavity; 321. air holes are formed; 33. a first clamping plate; 331. a third through hole; 34. a first electromagnet; 35. a first movable bar; 351. a first round ball; 352. a first limit plate; 353. a first return spring; 4. a piston rod; 41. a piston; 42. a compression spring; 43. a second clamping plate; 431. a fourth via hole; 44. a second electromagnet; 45. a second movable bar; 451. a second sphere; 452. a second limiting plate; 453. a second return spring; 5. a handle; 51. an annular groove; 52. an annular telescopic air bag; 521. a third return spring; 6. a traction sheave; 61. a wheel groove.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 3, a wear detecting device for a traction sheave of an elevator includes a base 1, two first slide bars 11, two second slide bars 14, a driving mechanism, and a clamping mechanism.
The cross section of the base 1 is rectangular.
Two first slide bar 11 level sets up on the left side wall of base 1, two first slide bar 11 parallel arrangement and to the base 1 go up the distance of side the same, two first slide bar 11 keeps away from the one end of base 1 and has set firmly first baffle 111, two be provided with first slider 12 on the first slide bar 11, first slider 12 is improved level and is equipped with two first through-holes 121, first slider 12 slides through two first through-holes 121 and sets up on two first slide bars 11, the side of going up of first slider 12 has set firmly illumination plate 13, one side interval that illumination plate 13 is close to base 1 is provided with a plurality of LED lamp pearl 131 uniformly, illumination plate 13 is parallel with the left side wall of base 1, LED lamp pearl 131 is connected with external power source electricity.
Preferably, a plurality of the LED lamp beads 131 are uniformly arranged in the lighting panel 13 at intervals, the distance between two adjacent LED lamp beads 131 is 8mm, and no lamp bead is arranged on the edge of the lighting panel 13.
Two second slide bar 14 level sets up on the right side wall of base 1, two second slide bar 14 parallel arrangement and to the base 1 on the distance of side the same, two the one end that base 1 was kept away from to second slide bar 14 has set firmly second baffle 141, two be provided with second slider 15 on the second slide bar 14, second slider 15 is improved level and is equipped with two second through-holes 151, second slider 15 slides through two second through-holes 151 and sets up on two second slide bars 14, the side of going up of second slider 15 has set firmly fixed plate 16, be equipped with perforation 161 on the fixed plate 16, the unit 162 of making a video recording has set firmly in the perforation 161, the unit 162 of making a video recording is just to illumination plate 13.
Preferably, the camera unit 162 is a CMOS industrial camera.
The drive mechanism is capable of sliding the first slider 12 and the second slider 15 toward and away from each other.
The clamping mechanism can fix the lighting plate 13 and the fixing plate 16 simultaneously on the tread of the traction sheave 6.
The distance between the illumination plate 13 and the fixing plate 16 can be adjusted according to the size of the traction sheave 6, when the size of the traction sheave 6 is small, the driving mechanism is started to enable the first slider 12 and the second slider 15 to slide oppositely, the distance between the illumination plate 13 and the fixing plate 16 is reduced, when the size of the traction sheave 6 is large, the driving mechanism is started to enable the first slider 12 and the second slider 15 to slide oppositely, the distance between the illumination plate 13 and the fixing plate 16 is increased, the camera unit 162 is enabled to be always opposite to the lower end of the traction sheave 6, and the wheel groove 61 at the lower end of the traction sheave 6 can be clearly photographed; when the first rubber block 132 on the lighting plate 13 and the second rubber plate 163 on the fixing plate 16 simultaneously contact the sheave surface of the traction sheave 6, the lighting plate 13 and the fixing plate 16 are fixed on the sheave surface of the traction sheave 6 through the clamping mechanism, then the LED lamp beads 131 are turned on, the LED lamp beads 131 illuminate the sheave groove 61 at the lower end of the traction sheave 6, the camera unit 162 is started to take a picture, the picture is transmitted to a computer to be compared with the manufacturing size of the traction sheave 6, and the abrasion condition of the sheave groove 61 of the traction sheave 6 is analyzed and calculated, so that the method is simple and practical; in addition, an operator can detect the abrasion condition of the sheave groove 61 of the traction sheave 6 without detaching the traction sheave 6 by using the device, and the device is simple to operate, time-saving and labor-saving.
Specifically, the driving mechanism includes a motor 2, a driving shaft 21, a first linkage 23, and a second linkage 24.
The base 1 is internally provided with a mounting cavity 17, and the motor 2 is fixedly arranged at the bottom of the mounting cavity 17.
The drive shaft 21 vertically rotates and is arranged on the upper side surface of the base 1, the lower end of the drive shaft 21 extends into the installation cavity 17, the end part of the drive shaft is fixedly connected with an output shaft of the motor 2, and the upper end of the drive shaft 21 is horizontally and fixedly provided with a rotating rod 22.
One end of the first linkage rod 23 is hinged with one end of the rotating rod 22, and the other end of the first linkage rod 23 is hinged on the upper side surface of the first sliding block 12.
One end of the second linkage 24 is hinged to the other end of the rotating rod 22, and the other end of the second linkage 24 is hinged to the upper side surface of the second sliding block 15.
When the size of the traction sheave 6 is small, the motor 2 is started to drive the rotating rod 22 on the driving shaft 21 to rotate clockwise, the first linkage rod 23 drives the first slider 12 to slide along the first sliding rod 11 in the direction close to the base 1, and the second linkage rod 24 drives the second slider 15 to slide along the second sliding rod 14 in the direction close to the base 1, so that the distance between the lighting plate 13 and the fixed plate 16 is reduced; when the size of the traction wheel 6 is large, the motor 2 is started, the rotating rod 22 on the driving shaft 21 is driven to rotate anticlockwise, the first linkage rod 23 drives the first sliding block 12 to slide along the first sliding rod 11 in the direction away from the base 1, the second linkage rod 24 drives the second sliding block 15 to slide along the second sliding rod 14 in the direction away from the base 1, the distance between the lighting plate 13 and the fixing plate 16 is increased, the distance between the first sliding block 12 and the second sliding block 15 can be adjusted through the rotation of the motor 2, the structure is simple, and the transmission efficiency is high.
Specifically, the handle 5 is vertically and fixedly arranged on the lower side surface of the base 1.
The handle 5 is convenient for a detection person to take the detection device, in addition, when different positions of the wheel groove 61 need to be shot, the clamping mechanism is opened, the handle 5 is moved downwards to separate the lighting plate 13 and the fixing plate 16 from the wheel surface of the traction wheel 6, then the traction wheel 6 is rotated by a certain angle, the handle 5 is moved upwards to enable the lighting plate 13 and the fixing plate 16 to be in contact with the wheel surface of the traction wheel 6 again, the actions are repeated, pictures of the wheel groove 61 at different positions are shot through the camera unit 162, the abrasion condition of the traction wheel 6 is comprehensively detected, and the detection accuracy is improved.
In particular, the clamping mechanism comprises a piston cylinder 3, a piston rod 4, a first clamping plate 33, a second clamping plate 43 and a drive mechanism.
The piston cylinder 3 level sets firmly on the downside of base 1, the length direction of piston cylinder 3 is perpendicular with the front and back lateral wall of base 1.
The piston rod 4 is arranged in the piston cylinder 3 in a sliding mode, a piston 41 is fixedly arranged at the end portion of the piston rod 4 located in the piston cylinder 3, the piston 41 divides the interior of the piston cylinder 3 into a first cavity 31 and a second cavity 32 from left to right in sequence, a compression spring 42 is sleeved on the piston rod 4, the compression spring 42 is located between the piston 41 and the right side wall of the second cavity 32, and air holes 321 are formed in the right side wall of the second cavity 32 in a penetrating mode.
The first clamping plate 33 is vertically and fixedly arranged on the left side of the piston cylinder 3.
The second clamping plate 43 is vertically fixed on the right side of the piston rod 4.
The drive unit is able to bring the piston rod 4 to slide in the piston cylinder 3, adjusting the distance between the first clamping plate 33 and the second clamping plate 43.
In an initial state, the piston rod 4 slides towards one end far away from the piston cylinder 3 through the driving unit, the compression spring 42 is compressed, the distance between the first clamping plate 33 and the second clamping plate 43 is increased, the handle 5 is moved upwards, the lower end of the traction wheel 6 extends into the space between the first clamping plate 33 and the second clamping plate 43, the piston rod 4 slides towards the piston cylinder 3 through the driving unit, the distance between the first clamping plate 33 and the second clamping plate 43 is reduced, finally, the first clamping plate 33 and the second clamping plate 43 clamp two sides of the traction wheel 6, the compression effect of the compression spring 42 is added, the illumination plate 13 and the fixing plate 16 are always in contact with the wheel surface of the traction wheel 6, the camera unit 162 is prevented from shaking when taking a picture, and the detection accuracy is improved.
Specifically, the driving unit comprises an annular telescopic airbag 52, an annular groove 51 is formed in the handle 5, the annular telescopic airbag 52 is arranged in the annular groove 51, a plurality of third return springs 521 are arranged in the annular telescopic airbag 52, and the annular telescopic airbag 52 is communicated with the first cavity 31 of the piston cylinder 3 through a hose.
The detection personnel pinches the handle 5, the gas in the annular telescopic air bag 52 is squeezed into the first cavity 31 of the piston cylinder 3, the third return spring 521 in the annular telescopic air bag 52 is compressed, the piston 41 and the piston rod 4 are pushed to move towards the direction close to the second clamping plate 43, the distance between the first clamping plate 33 and the second clamping plate 43 is increased, the detection personnel loosens the handle 5, under the action of the compression spring 42, the piston 41 and the piston rod 4 are driven to move towards the direction close to the first clamping plate 33, meanwhile, the compressed energy of the third return spring 521 is released, the annular telescopic air bag 52 is restored to the original state, air is sucked from the first cavity 31, negative pressure is formed in the first cavity 31, the piston 41 is accelerated to move towards the first clamping plate 33, the distance between the first clamping plate 33 and the second clamping plate 43 is reduced, and the extrusion force of the detection personnel on the annular telescopic air bag 52 is detected, the distance between the first clamping plate 33 and the second clamping plate 43 can be adjusted, and the operation is simple.
Specifically, the top of the lighting panel 13 is provided with a first tangent plane, the first tangent plane is inclined downward from left to right and fixedly provided with a first rubber block 132, the top of the fixing plate 16 is provided with a second tangent plane, and the second tangent plane is inclined upward from left to right and fixedly provided with a second rubber block 163.
When the lighting plate 13 and the fixing plate 16 move upward to contact with the sheave surface of the traction sheave 6, the first rubber block 132 and the second rubber block 163 play a role of buffering to avoid rigid collision with the sheave surface of the traction sheave 6, which causes damage; in addition, the first rubber block 132 and the second rubber block 163 can increase the contact area with the tread of the traction sheave 6, so that the positions of the illumination plate 13 and the fixing plate 16 are not shifted, which affects the photographing effect of the photographing unit 162.
Specifically, the first clamping plate 33 is close to one side of the second clamping plate 43 and is fixedly provided with the first electromagnet 34, the second clamping plate 43 is close to one side of the first clamping plate 33 and is fixedly provided with the second electromagnet 44, the lower side surface of the base 1 is provided with the storage battery 18 and the controller 19, and the first electromagnet 34 and the second electromagnet 44 are electrically connected with the storage battery 18 through the controller 19.
When the piston rod 4 slides in the piston cylinder 3, the distance between the first clamping plate 33 and the second clamping plate 43 is reduced to be in contact with the side surface of the traction sheave 6, the first electromagnet 34 and the second electromagnet 44 are started at the moment, so that the first electromagnet 34 and one side of the traction sheave 6 generate attraction, the second electromagnet 44 and the other side of the traction sheave 6 generate attraction, the first clamping plate 33 and the second clamping plate 43 are fixed on two sides of the traction sheave 6, the detection device is prevented from accidentally falling to cause damage, the hands of a detector can be liberated, and the ache caused by lifting the handle for a long time can be avoided.
Specifically, the top of the first clamping plate 33 is provided with a third through hole 331, a first movable rod 35 is inserted into the third through hole 331, the right end of the first movable rod 35 extends out of the third through hole 331, and the end of the first movable rod is fixedly provided with a first ball 351, the distance between the first ball 351 and the first clamping plate 33 is greater than the distance between the first electromagnet 34 and the first clamping plate 33, the left end of the first movable rod 35 extends out of the third through hole 331, and the end of the first movable rod is fixedly provided with a first limiting plate 352, a first return spring 353 is sleeved on the first movable rod 35, the first return spring 353 is located between the first limiting plate 352 and the first clamping plate 33, the first ball 351 is provided with a first pressure sensor, and the first pressure sensor is electrically connected with the controller 19.
Under the action of the pressing spring 42 and the third return spring 521, the first clamping plate 33 gradually approaches one side surface of the traction sheave 6, when the first round ball 351 contacts the traction sheave 6, the first pressure sensor on the first round ball 351 sends a signal to the controller 19, the controller 19 activates the first electromagnet 34, so that the first electromagnet 34 generates an attractive force with the traction sheave 6, the first electromagnet 34 is adsorbed on the side surface of the traction sheave 6, the first clamping plate 33 is fixed on the traction sheave 6, the first return spring 353 on the first movable rod 35 is stretched at the moment, when the detection is finished, the first electromagnet 34 is closed, the first clamping plate 33 is removed, the stretched energy of the first return spring 353 begins to be released, the first movable rod 35 and the first round ball 351 are pushed to move to an initial position in a direction approaching the base 1, and the opening and closing of the first electromagnet 34 are automatically controlled by the first pressure sensor, is simple and efficient.
Particularly, the top of second clamp plate 43 is equipped with fourth through hole 431, fourth through hole 431 interpolation is equipped with second movable rod 45, fourth through hole 431 and the tip have set firmly second ball 451 are stretched out to the left end of second movable rod 45, the right-hand member of second movable rod 45 stretches out fourth through hole 431 and the tip has set firmly second limiting plate 452, the cover is equipped with second reset spring 453 on the second movable rod 45, second reset spring 453 is located between second limiting plate 452 and the second clamp plate 43, be equipped with second pressure sensor on the second ball 451, second pressure sensor is connected with controller 19 electricity.
Under the action of the pressing spring 42 and the third return spring 521, the second clamping plate 43 gradually approaches the other side surface of the traction sheave 6, when the second round ball 451 contacts the traction sheave 6, the second pressure sensor on the second round ball 451 sends a signal to the controller 19, the controller 19 activates the second electromagnet 44, so that the second electromagnet 44 generates an attractive force with the traction sheave 6, the second electromagnet 44 is adsorbed on the side surface of the traction sheave 6, the second clamping plate 43 is fixed on the traction sheave 6, at this time, the second return spring 453 on the second movable rod 45 is stretched, when the detection is finished, the second electromagnet 44 is closed, the second clamping plate 43 is removed, the stretched energy of the second return spring 453 starts to be released, the second movable rod 45 and the second round ball 451 are pushed to move to the initial position in the direction approaching the base 1, the opening and closing of the second electromagnet 44 is automatically controlled by the second pressure sensor, is simple and efficient.
A detection method of an elevator traction sheave wear detection device comprises the following steps:
1) the handle 5 is pinched, the annular telescopic air bag 52 on the handle 5 is squeezed, the gas in the annular telescopic air bag 52 is squeezed into the first cavity 31, the piston 41 is pushed to move towards the direction close to the second clamping plate 43, the compression spring 42 is compressed, and the distance between the first clamping plate 33 and the second clamping plate 43 is increased;
2) starting the motor 2, adjusting the distance between the lighting plate 13 and the fixing plate 16 according to the size of the traction sheave 6, and then lifting the handle 5 to make the first rubber block 132 and the second rubber block 163 simultaneously contact with the tread of the traction sheave 6, at this time, releasing the handle 5, the compressed energy of the compression spring 42 starts to be released, pushing the piston 41 and the piston rod 4 to move towards the first clamping plate 33, and the distance between the first clamping plate 33 and the second clamping plate 43 is reduced;
3) when the first ball 351 contacts one side surface of the traction sheave 6, the first pressure sensor on the first ball 351 sends a signal to the controller 19, the controller 19 activates the first electromagnet 34, the first electromagnet 34 and the traction sheave 6 generate an attractive force, so that the first electromagnet 34 is attracted to the traction sheave 6, and the first clamping plate 33 is fixed on one side surface of the traction sheave 6;
4) when the second round ball 451 contacts the other side surface of the traction sheave 6, the second pressure sensor on the second round ball 451 sends a signal to the controller 19, the controller 19 activates the second electromagnet 44, the second electromagnet 44 and the traction sheave 6 generate an attractive force, so that the second electromagnet 44 is attracted to the traction sheave 6, and the second clamping plate 43 is fixed on the other side surface of the traction sheave 6;
5) and turning on the LED lamp beads 131 on the lighting plate 13, starting the camera unit 162, taking pictures of the wheel groove 61 at the lower end of the traction wheel 6, guiding the shot pictures into a computer, magnifying the pictures to actual sizes, measuring the size of the wheel groove 61 of the traction wheel 6, comparing the size with the manufacturing size of the wheel groove 61, and analyzing and calculating the wear condition of the wheel groove 61 of the traction wheel 6.
The detection person grasps the handle 5, squeezes the annular telescopic air bag 52, the inflation pressure in the first cavity 31 is increased, pushes the piston 41 and the piston rod 4 to move in the direction away from the piston cylinder 3, increases the distance between the first clamping plate 33 and the second clamping plate 43, then moves the handle 5 upwards, enables the lower end of the traction sheave 6 to extend into the space between the first clamping plate 33 and the second clamping plate 43, adjusts the distance between the lighting plate 13 and the fixing plate 16 through the rotation of the motor 2, enables the camera unit 162 to be opposite to the lower end of the traction sheave 6, then releases the handle 5, and under the action of the compression spring 42 and the third return spring 521, the annular telescopic air bag 52 evacuates from the first cavity 31, negative pressure is formed in the first cavity 31, pushes the piston 41 and the piston rod 4 to slide in the piston cylinder 3, the first clamping plate 33 and the second clamping plate 43 move towards each other to clamp the traction sheave 6, and the detection device is fixed on the traction sheave 6, then, a picture is shot through the camera unit 162, the picture is guided into the computer, and then the picture is amplified to the actual size and is compared with the manufacturing size of the traction sheave 6 for calculation, so that the abrasion condition of the sheave groove 61 of the traction sheave 6 is accurately detected, the operation is simple, and the time and the labor are saved.
In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. An elevator traction sheave wear detection device, comprising: the cross section of the base (1) is rectangular;
the LED lamp comprises two first sliding rods (11), wherein the two first sliding rods (11) are horizontally arranged on the left side wall of a base (1), one ends, far away from the base (1), of the two first sliding rods (11) are fixedly provided with first baffle plates (111), the two first sliding rods (11) are provided with first sliding blocks (12) in a sliding mode, the upper side face of each first sliding block (12) is fixedly provided with a lighting plate (13), one side, close to the base (1), of each lighting plate (13) is provided with a plurality of LED lamp beads (131), and the lighting plates (13) are parallel to the left side wall of the base (1);
the two second sliding rods (14) are horizontally arranged on the right side wall of the base (1), one ends, far away from the base (1), of the two second sliding rods (14) are fixedly provided with second baffle plates (141), the two second sliding rods (14) are provided with second sliding blocks (15) in a sliding mode, the upper side faces of the second sliding blocks (15) are fixedly provided with fixing plates (16), the fixing plates (16) are provided with through holes (161), camera units (162) are arranged in the through holes (161), and the camera units (162) are opposite to the lighting plate (13);
a drive mechanism capable of sliding the first slider (12) and the second slider (15) towards and away from each other;
a clamping mechanism which can fix the lighting plate (13) and the fixing plate (16) on the wheel surface of the traction wheel (6) at the same time.
2. The elevator traction sheave wear detection apparatus of claim 1, wherein the drive mechanism comprises:
the motor (2), the said base (1) is equipped with the installation cavity (17), the said motor (2) is fixed in installation cavity (17);
the driving shaft (21) is vertically and rotatably arranged on the upper side face of the base (1), the lower end of the driving shaft (21) extends into the mounting cavity (17), the end part of the driving shaft is in transmission connection with an output shaft of the motor (2), and the upper end of the driving shaft (21) is horizontally and fixedly provided with a rotating rod (22);
one end of the first linkage rod (23) is hinged with one end of the rotating rod (22), and the other end of the first linkage rod (23) is hinged on the upper side face of the first sliding block (12);
one end of the second linkage rod (24) is hinged to the other end of the rotating rod (22), and the other end of the second linkage rod (24) is hinged to the upper side face of the second sliding block (15).
3. The elevator traction sheave wear detection device according to claim 2, characterized in that a handle (5) is vertically fixed to the lower side of the base (1).
4. The elevator traction sheave wear detection apparatus of claim 3, wherein the clamping mechanism comprises:
the piston cylinder (3) is horizontally and fixedly arranged on the lower side surface of the base (1), and the length direction of the piston cylinder (3) is vertical to the front side wall and the rear side wall of the base (1);
the piston rod (4) is arranged in the piston cylinder (3) in a sliding mode, a piston (41) is fixedly arranged at the end portion of the piston rod (4) located in the piston cylinder (3), the piston (41) divides the interior of the piston cylinder (3) into a first cavity (31) and a second cavity (32) from left to right in sequence, a compression spring (42) is sleeved on the piston rod (4), the compression spring (42) is located between the piston (41) and the right side wall of the second cavity (32), and air holes (321) are formed in the right side wall of the second cavity (32) in a penetrating mode;
the first clamping plate (33) is vertically and fixedly arranged on the left side of the piston cylinder (3);
the second clamping plate (43) is vertically and fixedly arranged on the right side of the piston rod (4);
the driving unit can drive the piston rod (4) to slide in the piston cylinder (3) to adjust the distance between the first clamping plate (33) and the second clamping plate (43).
5. The elevator traction sheave wear detection device according to claim 4, wherein the drive unit comprises an annular expansion bladder (52), the handle (5) is provided with an annular groove (51), the annular groove (51) is internally provided with the annular expansion bladder (52), the annular expansion bladder (52) is internally provided with a plurality of third return springs (521), and the annular expansion bladder (52) is communicated with the first cavity (31) of the piston cylinder (3) through a hose.
6. The elevator traction sheave wear detection apparatus according to claim 5, wherein the top of the illumination plate (13) is provided with a first cut surface inclined downward from left to right and fixedly provided with a first rubber block (132), the top of the fixing plate (16) is provided with a second cut surface inclined upward from left to right and fixedly provided with a second rubber block (163).
7. The elevator traction sheave wear detection device according to claim 6, wherein a first electromagnet (34) is fixedly arranged on one side of the first clamping plate (33) close to the second clamping plate (43), a second electromagnet (44) is fixedly arranged on one side of the second clamping plate (43) close to the first clamping plate (33), a storage battery (18) and a controller (19) are arranged on the lower side surface of the base (1), and the first electromagnet (34) and the second electromagnet (44) are electrically connected with the storage battery (18) through the controller (19).
8. The elevator traction sheave wear detection device according to claim 7, wherein a third through hole (331) is formed in the top of the first clamping plate (33), a first movable rod (35) is inserted into the third through hole (331), a first round ball (351) is fixedly arranged at the right end of the first movable rod (35) extending out of the third through hole (331) and at the end of the first movable rod, a first limiting plate (352) is fixedly arranged at the left end of the first movable rod (35) extending out of the third through hole (331), a first return spring (353) is sleeved on the first movable rod (35), the first return spring (353) is located between the first limiting plate (352) and the first clamping plate (33), a first pressure sensor is arranged on the first round ball (351), and the first pressure sensor is electrically connected with the controller (19).
9. The elevator traction sheave wear detection device according to claim 8, wherein a fourth through hole (431) is formed in the top of the second clamping plate (43), a second movable rod (45) is inserted into the fourth through hole (431), a second round ball (451) is fixedly arranged at the end of the second movable rod (45) extending out of the fourth through hole (431), a second limit plate (452) is fixedly arranged at the end of the second movable rod (45) extending out of the fourth through hole (431), a second return spring (453) is sleeved on the second movable rod (45), the second return spring (453) is located between the second limit plate (452) and the second clamping plate (43), a second pressure sensor is arranged on the second round ball (451), and the second pressure sensor is electrically connected with the controller (19).
10. A detection method of an elevator traction sheave wear detection device is characterized by comprising the following steps:
1) the handle (5) is pinched, the annular telescopic air bag (52) on the handle (5) is squeezed, the gas in the annular telescopic air bag (52) is squeezed into the first cavity (31), the piston (41) is pushed to move towards the direction close to the second clamping plate (43), the compression spring (42) is compressed, and the distance between the first clamping plate (33) and the second clamping plate (43) is increased;
2) the motor (2) is started, the distance between the lighting plate (13) and the fixing plate (16) is adjusted according to the size of the traction sheave (6), then the handle (5) is lifted, the first rubber block (132) and the second rubber block (163) are simultaneously contacted with the sheave surface of the traction sheave (6), at the moment, the handle (5) is loosened, the compressed energy of the compression spring (42) is released, the piston (41) and the piston rod (4) are pushed to move towards the direction close to the first clamping plate (33), and the distance between the first clamping plate (33) and the second clamping plate (43) is reduced;
3) when the first round ball (351) contacts one side surface of the traction sheave (6), the first pressure sensor on the first round ball (351) sends a signal to the controller (19), the controller (19) starts the first electromagnet (34), the first electromagnet (34) and the traction sheave (6) generate an attractive force, the first electromagnet (34) is adsorbed on the traction sheave (6), and the first clamping plate (33) is fixed on one side surface of the traction sheave (6);
4) when the second round ball (451) contacts the other side surface of the traction sheave (6), a second pressure sensor on the second round ball (451) sends a signal to the controller (19), the controller (19) starts the second electromagnet (44), the second electromagnet (44) and the traction sheave (6) generate an attractive force, the second electromagnet (44) is attracted to the traction sheave (6), and the second clamping plate (43) is fixed on the other side surface of the traction sheave (6);
5) the LED lamp beads (131) on the lighting plate (13) are turned on, the camera unit (162) is started, the wheel groove (61) at the lower end of the traction wheel (6) is photographed, the photographed picture is LED into a computer, then the picture is enlarged to the actual size, the size of the wheel groove (61) of the traction wheel (6) is measured, the size is compared with the manufacturing size of the wheel groove (61), and the abrasion condition of the wheel groove (61) of the traction wheel (6) is analyzed and calculated.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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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