CN207792382U - A kind of elevator rope monitoring device - Google Patents
A kind of elevator rope monitoring device Download PDFInfo
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- CN207792382U CN207792382U CN201721683514.7U CN201721683514U CN207792382U CN 207792382 U CN207792382 U CN 207792382U CN 201721683514 U CN201721683514 U CN 201721683514U CN 207792382 U CN207792382 U CN 207792382U
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- support
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- telescopic
- elevator rope
- hoist ropes
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Abstract
The utility model provides a kind of elevator rope monitoring device, including the first telescopic device, second telescopic device, first support device, second support device, pedestal, the directive wheel that can be moved in the horizontal direction being set on the base, it measures the inclinometer of hoist ropes cornerite and measures the first pulling force sensor and the second pulling force sensor of the tension for two hoist ropes drawn from traction sheave respectively, first telescopic device is oppositely arranged with the second telescopic device, first support device and the telescopic end of first telescopic device are hinged, second support device and the telescopic end of second telescopic device are hinged；The directive wheel is arranged in the lower section of first support device.Elevator rope monitoring device provided by the utility model can change cornerite in test scope, can monitor the equlvalent coefficient of friction f of traction, prevent to occur because of the harm of the too low generations of traction equlvalent coefficient of friction f, simple in structure, simple operation.
Description
Technical field
The utility model is related to a kind of elevator rope monitoring devices, belong to elevator technology field.
Background technology
Existing elevator device, the method measured for the equlvalent coefficient of friction of traction machine and steel wire rope is by with import
Instrument measures the acceleration of car by formula f=ln (m1 (g+a)/m2 (g-a))/cb, and f is friction coefficient wherein in formula,
M1 car mass, a are acceleration, and m2 is counterweight mass, and g is acceleration of gravity, and c is the correction factor of environmental factor, and b is traction
Radian.This mode is to belong to non-contact measurement, and test result is big by external influence factor, and test equipment is high
It is expensive.It is that elevator is sling using hoist by release steel wire rope about the traction cornerite of steel wire rope is changed, elevator is hung corresponding positions
It sets, is loaded on steel wire rope.Dismounting once will averagely use the time in this way, and expenses of labour is higher, and since hoistway is narrow, installation
The operation of personnel is restricted, so causing the error of the traction radian b measured larger.The drive that lift car passes through hoist ropes
It is moved up and down in hoistway, before elevator installation, first the hoist ropes of elevator is detected, calculate rubbing for the equivalent of hoist ropes
Wipe coefficient f, the phenomenon that preventing car from having skidded, the friction coefficient f=1/b ln (T1/T2) of equivalent, wherein b be hoist ropes with
The radian of cornerite between traction sheave, T1 are the pulling force for the hoist ropes being connect with car, and T2 is the hoist ropes being connect with counterweight frame
Pulling force.Also there is the mechanism measured to f in the prior art, but these mechanisms, which can not arbitrarily change cornerite, to be surveyed
Amount, and can not accurately measure T1 and T2.
Utility model content
Based on the above deficiency, the technical problem to be solved by the present invention is to provide a kind of elevator rope monitoring device,
It can change cornerite in test scope, can monitor the equlvalent coefficient of friction f of traction, prevent because of traction equivalent friction system
The harm of the too low generations of number f occurs, simple in structure, simple operation.
In order to solve the above technical problems, the utility model uses following technical scheme：
A kind of elevator rope monitoring device, including the first telescopic device, the second telescopic device, the first support device,
Two support devices, pedestal, the directive wheel that can be moved in the horizontal direction being set on the base, the inclinometer for measuring hoist ropes cornerite
And the first pulling force sensor and the second pulling force sensor of the pulling force for two hoist ropes drawn from traction sheave are measured respectively, the
One telescopic device is oppositely arranged with the second telescopic device, and first support device and the telescopic end of first telescopic device are cut with scissors
It connects, second support device and the telescopic end of second telescopic device are hinged；The directive wheel is arranged at described first
The lower section of support arrangement.
First telescopic device includes transmission device, gear and connecting rod, the transmission with second telescopic device
Device is engaged with the gear, and described connecting rod one end is hinged with the gear, and the other end is hinged with the support device.
The connecting rod is extensible link, including sequentially connected first connecting rod, air pressure deformation mechanism and second connecting rod.
The air pressure deformation mechanism includes air bag and the holder that is attached on air bag.
The transmission device is rack or chain, and the rack or chain are engaged with the gear.
First telescopic device shares the same rack or chain with second telescopic device.
First support device and second support device include the first support wheel bypassed successively for hoist ropes,
Second support wheel, the rack that the first support wheel is connect with the second support wheel, the testing wheel that hoist ropes is compressed and drive the
First synchronous belt of two support wheels movement, the testing wheel are arranged between the first support wheel and the second support wheel, the test
Wheel is the cam with different radii.
Further include the synchronous belt for driving testing wheel movement, the testing wheel is arranged on synchronous belt, and the synchronous belt is parallel
Line between first support wheel and second support wheel.
Lead screw is set on the pedestal, the guide holder being connect with wire rod thread is set on the directive wheel.
Telescoping mechanism is additionally provided on the hoist ropes, the telescoping mechanism is hydraulic telescopic machanism.
Using above technical scheme, the utility model achieves following technique effect：
(1) elevator rope monitoring device provided by the utility model, hoist ropes can bypass the first support device, traction
Wheel, the second support device and directive wheel, can change the cornerite of hoist ropes by the movement of the first telescopic device and directive wheel,
It is adjacent to again with hoist ropes by flexible be moved to the first support device of the first telescopic device, by being arranged on telescopic device
Inclinometer measures cornerite, directly measures the pulling force T of hoist ropes with the method for contact；Further according to formula f=1/b ln (T1/
T2 the friction coefficient of the equivalent of hoist ropes) is calculated, it is simple in structure easy to operate；
(2) steel wire rope is made to be in releasing orientation, the directive wheel with pedestal by adjusting the extensible link of car top
Certain position is adjusted, then adjust the first telescopic device to make steel wire tensioning.It at the same time, can be with moving teeth by racks turn
Wheel rotation, gear rotation can drive the subtended angle of connecting rod to change, to of the first support device and the second support device
Angle also changes, and also changes around the first support device and the cornerite of the hoist ropes of the second support device, passes through sensing
Device measures the wrap angle of hoist ropes, according to θ/180 ° radian formula b=× π；
(3) tension of hoist ropes can be accurately measured by support device and pulling force sensor, and simple in structure, operate
It is convenient.
Description of the drawings
Fig. 1 is the structure chart of the utility model elevator rope monitoring device；
Fig. 2 is the usage state diagram of the utility model elevator rope monitoring device (before adjustment cornerite)；
Fig. 3 is the usage state diagram of the utility model elevator rope monitoring device (after adjustment cornerite).
Specific implementation mode
As depicted in figs. 1 and 2, the utility model provides a kind of elevator rope monitoring device, including the first flexible dress
Set the 1, second telescopic device 2, the first support device 3, the second support device 4, pedestal 14, be arranged on pedestal 14 can be along level
The directive wheel 7 of direction movement measures the inclinometer of hoist ropes cornerite and measures two hoist ropes drawn from traction sheave 5 respectively
Pressing force the first pulling force sensor and the second pulling force sensor, the first telescopic device 1 is opposite with the second telescopic device 2 to be set
It sets, the telescopic end of first support device 3 and first telescopic device 1 is hinged, second support device 4 and described the
The telescopic end of two telescopic devices 2 is hinged；Directive wheel 7 is arranged in the lower section of first support device 3.
Wherein, the first telescopic device 1 and the second telescopic device 2 include transmission device 11, gear 12, connecting rod 13, transmission
Device 11 is rack or chain, and transmission device 11 is engaged with gear 12, and 13 one end of connecting rod is hinged with gear 12, the other end and support
Device is hinged.Connecting rod 13 is extensible link 13, including sequentially connected first connecting rod 131, air pressure deformation mechanism 132 and second
Connecting rod 133.Air pressure deformation mechanism 132 includes air bag and the holder being attached on air bag.In the present embodiment, the first telescopic device
1 and second telescopic device 2 share a transmission device 11, transmission device 11 is rack, the gear 12 of the first telescopic device 1 and the
The gear 12 of two telescopic devices 2 is engaged with rack, and rack movement drives to be rotated with rack meshed gears 12, with gear 12
It rotating, the variable angle between connecting rod 13, the distance between the first support device 3 and the second support device 4 change, because
This, the cornerite of hoist ropes 10 also changes；Air pressure deformation mechanism 132 can must adjust the first support device 3 and second with bigger
Angle between support device 4 may be used when needing the cornerite adjusted to be more than the cornerite limiting value that gear 12 can be adjusted
Air pressure deformation mechanism 132 is further finely tuned, and measurement accuracy is improved.
First support device 3 and second support device 4 include the first support wheel 31 bypassed successively for hoist ropes,
Second support wheel 32, the rack 33 by the first support wheel 31 is connect with the second support wheel 32, the testing wheel 34 for compressing hoist ropes
And the first synchronous belt 35 of the second support wheel 32 movement is driven, testing wheel 34 is arranged in the first support wheel 31 and the second support wheel
Between 32, testing wheel 34 is the cam with different radii, and in the present embodiment, cam is spliced by the semicolumn of two different radiis
Composition.The telescopic end of first telescopic device 1 or the second telescopic device 2 is hinged with rack 33.
First support device 3 further includes the second synchronous belt 36 for driving testing wheel 34 to move with second support device 4,
The testing wheel 34 is arranged on the second synchronous belt 36, parallel first support wheel 31 of second synchronous belt 36 and described the
Line between two support wheels 32.When mobile second support wheel 32 change between the first support wheel 31 and the second support wheel 32 away from
From when, testing wheel 34 can be moved to the line of the first support wheel 31 and the second support wheel 32 by mobile second synchronous belt 36
Center, ensure measurement accuracy.
Telescoping mechanism 15 is additionally provided on hoist ropes 10, telescoping mechanism is hydraulic telescopic machanism, and hydraulic cylinder connects with car 8
It connects, telescopic end is connect with hoist ropes 10, when directive wheel 7 moves right, increases the elongation of rope by telescoping mechanism elongation
Amount, it is laborsaving and efficient, without being realized by rising car.Directive wheel 7 is moved horizontally by lead screw driving.
The utility model additionally provides a kind of elevator rope monitoring method, includes the following steps：
(1) first the utility model elevator rope monitoring device is arranged below traction sheave 5, hoist ropes bypasses lead respectively
To the 6, second support device 4 of wheel, traction sheave 5, the first support device 3 and directive wheel 7, car 8 is connected on directive wheel 6, around leading
It being connected to the hoist ropes of wheel 7 to pouring weight 9, the first pulling force sensor is mounted on the hoist ropes between directive wheel 6 and traction sheave 5,
Second pulling force sensor is mounted on the hoist ropes between directive wheel 7 and traction sheave 5；
(2) wrap angle is adjusted by the second telescopic device and directive wheel 7, is become by the rack of the second telescopic device or air pressure
Shape mechanism 132 adjusts the position for the hoist ropes drawn from traction sheave one end, and adjusting is moved left and right from traction sheave one by directive wheel 7
The position for holding the hoist ropes drawn adjusts the elongation of rope by telescoping mechanism, to change wrap angle；
(3 are adjacent to by flexible be moved to the first support device of the first telescopic device with hoist ropes again, are being stretched by setting
Inclinometer on compression apparatus measures cornerite；
(4) hoist ropes is compressed by testing wheel 34, hoist ropes 10 is made to be deformed bending, surveyed by the first pulling force sensor
T1 is measured, T2 is measured by the second pulling force sensor；
Specifically, for measuring the tension T1 for the hoist ropes being connect with car, first the first pulling force sensor is held on
A wherein semicolumn for the determination position of static steel wire rope, testing wheel 34 compresses hoist ropes, and the radius of this cylinder is r1, measures steel
Cord displacement is d1, and it is P1 to measure pressing force by the first pulling force sensor, between the first support wheel 31 and the second support wheel 32
Distance be l1.It is moved between 32 to the first support wheel 31 of the second support wheel and the second support wheel 32 by the first synchronous belt 35 again
Distance be l2, the rotation of testing wheel 34 to another semicolumn is compressed into hoist ropes, the radius of this cylinder is r2, measures steel wire rope position
It is d2, d2=d1+ (r2-r1) to move, and it is P2, the support of the first support wheel 31 and second to measure pressing force by the second pulling force sensor
The distance between wheel 32 is l2.
Wherein, in order to accurately measure the tension of steel wire rope, the calibration of displacement signal can be carried out by above-mentioned testing wheel, for
Same pulling force sensor, because gauge length l is constant, therefore pressing force is identical as the ratio of wire rope displacement.By formula (1) and
(2) d1 and d2 is calculated：Obtained d1 and d2 is substituted into formula (3) and obtains the value of T1, is measured by the same method and to reconnection
Hoist ropes tension T2.
P1/d1=P2/d2 (1)
D2=d1+ (r2-r1) (2)
T1=P1P2 (l1-l2)/4 (P2d1-P1d2) (3)
(5) equlvalent coefficient of friction of traction is calculated by formula f=1/b ln (T1/T2).
The equlvalent coefficient of friction of hoist ropes is measured using the method, high certainty of measurement, range are wide, laborsaving and efficient,
Without by the way that car is lifted realization.
Finally it should be noted that：The preferred embodiment that these are only the utility model, is not limited to this practicality
It is novel, although the utility model is described in detail with reference to embodiment, for those skilled in the art, according to
So can be with technical scheme described in the above embodiments is modified, or which part technical characteristic is equally replaced
It changes, but within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (8)
1. a kind of elevator rope monitoring device, it is characterised in that：Including the first telescopic device, the second telescopic device, first
Support arrangement, pedestal, the directive wheel that can be moved in the horizontal direction being set on the base, measures hoist ropes packet at the second support device
The inclinometer at angle and measure respectively two hoist ropes drawn from traction sheave pressing force the first pulling force sensor and second
Pulling force sensor, the first telescopic device are oppositely arranged with the second telescopic device, and first support device is flexible with described first
The telescopic end of device is hinged, and second support device and the telescopic end of second telescopic device are hinged；The directive wheel is set
It sets in the lower section of first support device.
2. elevator rope monitoring device according to claim 1, it is characterised in that：First telescopic device with it is described
Second telescopic device includes transmission device, gear and connecting rod, and the transmission device is engaged with the gear, described connecting rod one end
Hinged with the gear, the other end is hinged with the support device.
3. elevator rope monitoring device according to claim 2, it is characterised in that：The connecting rod is extensible link,
Including sequentially connected first connecting rod, air pressure deformation mechanism and second connecting rod.
4. elevator rope monitoring device according to claim 3, it is characterised in that：The air pressure deformation mechanism includes gas
Capsule and the holder being attached on air bag.
5. elevator rope monitoring device according to claim 2, it is characterised in that：The transmission device is rack or chain
Item, the rack or chain are engaged with the gear.
6. elevator rope monitoring device according to claim 5, it is characterised in that：First telescopic device with it is described
Second telescopic device shares the same rack or chain.
7. elevator rope monitoring device according to claim 1, it is characterised in that：First support device with it is described
Second support device includes the first support wheel bypassed successively for hoist ropes, the second support wheel, by the first support wheel and second
The rack of support wheel connection, the testing wheel that hoist ropes is compressed and the first synchronous belt for driving the movement of the second support wheel, it is described
Testing wheel is arranged between the first support wheel and the second support wheel, and the testing wheel is the cam with different radii；And/or；
Further include the synchronous belt for driving testing wheel movement, the testing wheel is arranged on synchronous belt, the synchronous belt parallel described first
Line between support wheel and second support wheel.
8. elevator rope monitoring device according to claim 1, it is characterised in that：Lead screw, institute are set on the pedestal
State the guide holder that setting is connect with wire rod thread on directive wheel；And/or；Telescoping mechanism, institute are additionally provided on the hoist ropes
It is hydraulic telescopic machanism to state telescoping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683514.7U CN207792382U (en) | 2017-12-06 | 2017-12-06 | A kind of elevator rope monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721683514.7U CN207792382U (en) | 2017-12-06 | 2017-12-06 | A kind of elevator rope monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN207792382U true CN207792382U (en) | 2018-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721683514.7U Active CN207792382U (en) | 2017-12-06 | 2017-12-06 | A kind of elevator rope monitoring device |
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| CN (1) | CN207792382U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086792A (en) * | 2021-03-26 | 2021-07-09 | 广州广日电梯工业有限公司 | Maintenance method for elevator traction member and maintenance device for elevator traction member |
-
2017
- 2017-12-06 CN CN201721683514.7U patent/CN207792382U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113086792A (en) * | 2021-03-26 | 2021-07-09 | 广州广日电梯工业有限公司 | Maintenance method for elevator traction member and maintenance device for elevator traction member |
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