CN207192524U - Displacement detector and traction capacity detecting system for elevator device - Google Patents
Displacement detector and traction capacity detecting system for elevator device Download PDFInfo
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- CN207192524U CN207192524U CN201721245718.2U CN201721245718U CN207192524U CN 207192524 U CN207192524 U CN 207192524U CN 201721245718 U CN201721245718 U CN 201721245718U CN 207192524 U CN207192524 U CN 207192524U
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- displacement detector
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- elevator device
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The utility model discloses a kind of displacement detector for elevator device and traction capacity detecting system, wherein, displacement detector includes limiter of speed, and the rope sheave to be linked with car or counterweight is carried in limiter of speed, is additionally provided with：With the rotating disk of the rope sheave synchronous axial system, the periphery of the rotating disk is provided with the gear teeth of rope-winding wheel rotation axis distribution；Sense the monitoring element of gear teeth circumferential movement；Receive the signal of monitoring element and the processing unit of car displacement or counterweight displacement is obtained according to the rotating disk anglec of rotation.Displacement detector and traction capacity detecting system provided by the utility model for elevator device, the traction capacity of elevator device can be monitored in real time, to protect traction to hang medium, it is ensured that the safe operation of elevator.
Description
Technical field
The utility model is related to elevator technology field, and in particular to a kind of displacement detector for elevator device and
Traction capacity detecting system.
Background technology
Existing elevator standard GB7588-2003《Elevator manufactures and installation safety standard》In, define elevator in annex M
Middle traction should meet following condition：
A) car accidental conditions, car no more than rated load 125% when running, in hoistway diverse location most
Traction suspension medium is non-slip with respect to traction sheave under rough sledding；
B) urgent stop operating mode, car is unloaded or fully loaded, under the most unfavorable processing condition of hoistway diverse location, in subtracting for design
Traction suspension medium is non-slip with respect to traction sheave in velocity amplitude；
C) system is detained operating mode, and when traction machine is rotated by ascending for elevator direction, traction suspension medium should be beaten with respect to traction sheave
It is sliding.
The traction capacity design of elevator device, need to ensure in the service life of elevator design permission, traction capacity is necessary
Meet requirements above specified in national standard, traction capacity deficiency and surplus are all dangerous.
If traction is superfluous, when car or counterweight system are detained, it is possible to lift sky car, or even counterweight,
Cause security incident, equipment and personnel are damaged.
If traction is insufficient, car slipping occurs for elevator device, may cause crouching bottom or rush to summit, cause security incident, right
Equipment and personnel damage.
When operating mode occurs to be detained for elevator device, safety return circuit does not disconnect, and system will continue to run with, now the frequency conversion of system
Device output current exceedes normal output, and typically when output current exceeds more than 1.5~2 times of its rated current, frequency converter will
Self-shield, stop elevator operation.If output current is not detected exception without departing from the protection value of frequency converter, or uses
Big-power transducer, inspection do not measure exception and do not have the possibility of protection, cause elevator device by continuous service, until operation
Time reaches in system after the setting time of time restriction device, out of service.
System, which is detained, typically to be malfunctioned by safety tongs, car (or counterweight) crouching bottom or rushed to summit or other reasonses cause, stagnant
When staying generation, if safety return circuit does not disconnect, system will continue to run with, and in this section of run time, traction suspension medium will drag
Draw and persistently skidded on the traction sheave of main frame, cause the contact-segment of traction suspension medium and traction sheave to be worn repeatedly, force abrasion
Traction suspension media surface will be caused to destroy, or even scrapped, while the damage of unrepairable is caused to traction wheel surface.
In addition, there is safety tongs or other brakes are stuck to reset, or cage side and counterweight-side safety tongs it is equal
Excessive due to resetting resistance when acting and can not reset, attendant does not examine system running state and carried out repeatedly strong
Row resets, and the contact-segment for also resulting in traction suspension medium and traction sheave is worn and in turn results in traction suspension and medium and drag repeatedly
Running wheel damages.Once can not reset, it is necessary to worker enter in hoistway recover safety tongs or change elevator system quality after reset.
Medium is hung for the traction of composite for surface, in the time range that time restriction device limits, Huo Zheqiang
When row resetting time is long, because wearability is poor, the damage that causes to cause unrepairable and scrap, the steel of composite inner
Cord may be worn, and then destroy the surface of traction sheave, cause to drive main frame traction sheave to scrap.
Elevator traction uses friction-driven, after using more than certain time limit, drives traction sheave and the traction suspension matchmaker of main frame
Abrasion occurs in Jie, causes the equlvalent coefficient of friction of traction mating surface to reduce, and traction capacity, which declines, to be even less than.
For the traction steel-cable of routine, traction capacity, which declines, to be mainly shown as：Wirerope diameter diminishes, driving is led
The diameter of the traction sheave matching race of machine becomes big, race surface treatment generation is degenerated, etc..
Having the traction suspension medium of composite for Surface coating, (including composite steel band, composite steel wire rope, Kev are towed
Tie up rope, carbon fiber tape etc.) for, the surface of composite is traction mating surface with driving the traction wheel surface of main frame, the two it
Between friction mechanism for shearing and adhesion, when shear surface is flattened due to abrasion or adhesive face is roughening due to abrasion,
Equlvalent coefficient of friction can be caused to reduce and traction decline occur.In addition, abrasion and fatigue cause adding in composite
Add the material modified spilling such as agent and accumulated in traction wheel surface, and the traction foot wheel abrasion of driving main frame causes surface roughness to drop
It is low, can it cause equlvalent coefficient of friction to reduce.
At present, elevator industry lacks effective monitoring method to traction change, the elevator driven for traction steel-cable,
《TSG 7001-2009 elevator surveillances are examined and periodic inspection》Standard and《GB/T31821-2015 elevator critical piece reports
Useless technical conditions》Define traction steel-cable scraps condition, is specially：Using vernier caliper measurement wirerope diameter and traction
Grooving diameter is taken turns, and determines whether to reach with reference to wire rope breaking quantity and scraps.
Aforesaid way lacks the real-time monitoring to traction steel-cable, and not to the wire and strand breaking setting detection mark of steel wire rope
Standard, identification wire and strand breaking is only observed by the naked eye in maintenance, measurement accuracy is limited, security risk be present.
For there is the traction of composite to hang medium, composite generally use polyurethane or rubber using Surface coating
Glue, the wire and strand breaking of inner cable and attenuates, and can not pass through naked eyes and identify, therefore can not use identical with traction steel-cable
Method come judge traction change.
Utility model content
The utility model provides a kind of displacement detector for elevator device, traction energy that can be to elevator device
Power is monitored in real time, to protect traction to hang medium, it is ensured that the safe operation of elevator.
A kind of displacement detector for elevator device, including limiter of speed, carry in limiter of speed and join with car or counterweight
Dynamic rope sheave, is additionally provided with：
With the rotating disk of the rope sheave synchronous axial system, the periphery of the rotating disk is provided with the wheel of rope-winding wheel rotation axis distribution
Tooth；
Sense the monitoring element of gear teeth circumferential movement；
Receive the signal of monitoring element and the processing dress of car displacement or counterweight displacement is obtained according to the rotating disk anglec of rotation
Put.
Can be that car and counterweight set limiter of speed independently of one another in elevator device, according to limiter of speed installation site not
Together, displacement detecting accordingly detects car displacement or counterweight displacement.Namely when the rope sheave with car linkage is carried in limiter of speed, displacement
Detection means detects car displacement；When the rope sheave with counterweight linkage is carried in limiter of speed, displacement detector detection counterweight displacement.
Rope sheave in limiter of speed is linked by steel wire rope and car or counterweight, is not present and is skidded between steel wire rope and rope sheave,
The quantitative relation determined i.e. between the displacement of the rotational angle and steel wire rope of rope sheave be present, car or counterweight are fixed on steel wire rope
On a certain determination position, i.e. the rotational angle quantitative response of rope sheave car displacement or counterweight displacement.
Car displacement is identical with the detection method of counterweight displacement, and by taking car displacement as an example, each gear teeth are integrated with rotating disk
Structure, rotating disk and rope sheave synchronous axial system, the circumferential movement (i.e. the rotary motion of rotating disk) of the gear teeth is sensed by monitoring element,
The rotary state of rotating disk can be obtained, the rotary state of rotating disk reflects the rotary state of rope sheave, passes through the rotation of rope sheave
State, car displacement can be obtained.
When the gear teeth rotate, monitoring element has a position of the face gear teeth, and between two gear teeth space position, lead to
The different changes of two positions are crossed, pulse signal can be obtained, by the periodicity of pulse signal, rotating disk rotation is calculated
Angle, namely obtain the rotational angle of rope sheave, with reference to the radius of rope sheave, car displacement or counterweight displacement be calculated.
The monitoring element can use photosignal, the same encoder of principle of monitoring element induction wheel tooth circumferential movement,
Induced signal processing is referred to encoder interlock circuit for the process of pulse signal.
Preferably, the rotating disk is fixed with rope sheave coaxial line, or pass through meshed transmission gear.That is rotating disk and rope sheave
Between it is non-slip, between the rotational angle of rope sheave and the rotational angle of rotating disk have determine conversion relation,
For the convenience of installation, it is preferable that the rotating disk is fixed on one end of rope sheave axial direction.
Preferably, the rotating disk is located in the housing of limiter of speed.To ensure the rotation section of rotating disk by external factor
Interference.
Preferably, the housing exterior walls of limiter of speed are fixed with support, the monitoring element is arranged on the support and extended
Enter the neighbouring gear teeth in housing.The support can also be arranged on the enclosure interior of limiter of speed.
The quantity of the gear teeth is excessive, higher for requirement on machining accuracy, and the quantity of the gear teeth is very few, it is impossible to reflection car position in time
Shifting or the exception of counterweight displacement, it is preferable that the gear teeth are uniformly distributed circumferentially 6~12.
The utility model additionally provides a kind of elevator device traction capacity detecting system, including the traction distance inspection of driving main frame
Survey device, displacement detector and receive both signals and the signal transacting of exceptional instructions is sent when difference reaches default
Device, institute's displacement sensing device are foregoing displacement detector.
Preferably, also include receiving the exceptional instructions to stop the brakes of car or counterweight motion, the braking
System includes at least one of elevator driving main frame brake, limiter of speed safety tongs, rail clamping device and rope brake.
When detecting exceptional instructions, show that abnormal, traction suspension medium phase occurs in the traction capacity of traction suspension medium
Abnormal sliding occurs for traction sheave, in order to prevent the sliding between traction suspension medium and traction sheave in time, using braking system
System stop car or counterweight motion, brakes can select it is of the prior art any one or a few.
For surface for composite traction hang medium for, it is preferred to use elevator drive main frame brake and
Rail clamping device, avoid directly clamping traction suspension medium, traction suspension medium is caused to damage.
Preferably, also include receiving warning circuit of the exceptional instructions to be prompted.It is timely by warning circuit
Related maintenance staff are notified to safeguard elevator.
Displacement detector and traction capacity detecting system provided by the utility model for elevator device, can be right
The traction capacity of elevator device is monitored in real time, to protect traction to hang medium, it is ensured that the safe operation of elevator.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model displacement detector；
Fig. 2 is the explosive view for illustrating rotating disk installation site in the utility model displacement detector；
Fig. 3 is the schematic view of the mounting position of rotating disk in the utility model displacement detector；
Fig. 4 is the schematic diagram of rotating disk in the utility model displacement detector；
Fig. 5 is the sectional view of rotating disk in the utility model displacement detector；
When Fig. 6 is that car is up, the pulse signal comparison diagram of two monitoring elements；
When Fig. 7 is that car is descending, the pulse signal comparison diagram of two monitoring elements.
In figure：1st, housing；2nd, support；3rd, monitoring element；A, monitoring element；B, monitoring element；4th, rope sheave；5th, rotating disk；
6th, the gear teeth；7th, limiter of speed.
Embodiment
Below in conjunction with the accompanying drawings, displacement detector and the traction capacity detection system of elevator device are used for the utility model
System is described in detail.
Embodiment 1
A kind of displacement detector for elevator device, including limiter of speed 7, are carried in limiter of speed 7 and car or counterweight
The rope sheave 4 of linkage, as shown in Figure 1, Figure 2, Figure 3 shows, is additionally provided with：Rotating disk 5,6 circumferential fortune of the sensing gear teeth with the synchronous axial system of rope sheave 4
Dynamic monitoring element 3 and the signal of reception monitoring element 3 simultaneously obtain car displacement or counterweight according to the anglec of rotation of rotating disk 5
The processing unit of displacement.
As shown in Fig. 2, Fig. 4, Fig. 5, the periphery of rotating disk 5 is provided with some gear teeth 6 around the distribution of the axis of rotating disk 5, each
The gear teeth 6 are generally rectangular shaped, and each gear teeth 6 are structure as a whole with rotating disk 5, and the quantity of the gear teeth 6 is 10, and each gear teeth 6 revolve around it disk 5
Axis be uniformly distributed, i.e., the central angle between the two neighboring gear teeth 6 be 36 degree.
As shown in Figure 4,5, the circular diameter where monitoring element 3 is D1, and D1 110mm, the facewidth L of each gear teeth 6 are
11.9mm, the thickness H of rotating disk 5 is 4mm.
The rope sheave 4 of limiter of speed 7 rotates around fixed rotating shaft, as shown in figure 3, rotating disk 5 is bolted on the rotating shaft of rope sheave 4
Axial one end, rotating disk 5 is located in the housing 1 of limiter of speed 7.
As shown in figure 1, the outer wall of housing 1 of limiter of speed 7 is fixed with support 2, monitoring element 3 is arranged on support 2 and extended
Enter the neighbouring gear teeth 6 in housing 1.
Rotating disk 5 and the synchronous axial system of rope sheave 4 of limiter of speed 7, it is fixed when monitoring element 3 is located at the gap between two gear teeth 6
Justice is disconnected；When monitoring element 3 is blocked by the gear teeth 6, it is defined as leading to, pulse signal is obtained by the break-make of monitoring element 3, passes through arteries and veins
Car displacement or counterweight displacement can be obtained by rushing signal.
By taking car as an example, specifically it is calculated as：The make-and-break signal number characterized by pulse signal, obtain the rotation of rope sheave 4
Angle, the linear distance rotated with reference to the diameter of rope sheave 4, rope sheave 4, the linear distance is car displacement.After obtaining car displacement, knot
The time of car operation is closed, can further obtain the car speed of service.
When monitoring element is multiple, car or counterweight can be judged by the break-make combination of multiple monitoring elements
Traffic direction.
Below by taking two monitoring elements as an example, car or counterweight traffic direction are judged：
As shown in figure 4, monitoring element a and monitoring element b is located on same circumference, and the circumference is same with rotating disk 5
The center of circle, the central angle between two monitoring elements are 9 degree, i.e. central angle between monitoring element is justified between adjacent two gear teeth 6
The a quarter at heart angle.
As shown in fig. 6, when monitoring element b detects rising edge signal, now sentence if monitoring element a is in high level
Disconnected limiter of speed is rotating forward.
As shown in fig. 7, when monitoring element b detects rising edge signal, now sentence if monitoring element a is in low level
Disconnected limiter of speed is reversion.
Break-make assembled state according to two monitoring elements, it can be determined that the up and down direction of system, conveniently exist
Judge to drive the wiring of main frame whether correct in installation process.
Embodiment 2
A kind of elevator device traction capacity detecting system is present embodiments provided, including：Drive main frame traction distance detection
The displacement detector and receive both signals and send exceptional instructions when difference reaches default that device, embodiment 1 provide
Signal processing apparatus.
Also include receiving exceptional instructions to stop the brakes of car or counterweight motion, and receive exceptional instructions to enter
The warning circuit of row prompting.
Brakes can be one kind in elevator driving main frame brake, limiter of speed safety tongs, rail clamping device and rope brake
It is or a variety of.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out appropriate change and modification.Therefore, the invention is not limited in embodiment disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.
Claims (9)
- Carried 1. a kind of displacement detector for elevator device, including limiter of speed, in limiter of speed and car or counterweight link Rope sheave, it is characterised in that be additionally provided with：With the rotating disk of the rope sheave synchronous axial system, the periphery of the rotating disk is provided with the gear teeth of rope-winding wheel rotation axis distribution；Sense the monitoring element of gear teeth circumferential movement；Receive the signal of monitoring element and the processing unit of car displacement or counterweight displacement is obtained according to the rotating disk anglec of rotation.
- 2. it is used for the displacement detector of elevator device as claimed in claim 1, it is characterised in that the rotating disk and rope sheave Coaxial line is fixed, or passes through meshed transmission gear.
- 3. it is used for the displacement detector of elevator device as claimed in claim 1, it is characterised in that the rotating disk is fixed on One end of rope sheave axial direction.
- 4. it is used for the displacement detector of elevator device as claimed in claim 1, it is characterised in that the rotating disk is positioned at limit In the housing of fast device.
- 5. it is used for the displacement detector of elevator device as claimed in claim 1, it is characterised in that the housing exterior walls of limiter of speed Support is fixed with, the monitoring element is arranged on the support and extends into the neighbouring gear teeth in housing.
- 6. it is used for the displacement detector of elevator device as claimed in claim 1, it is characterised in that the gear teeth are circumferentially equal Even distribution 6~12.
- 7. a kind of elevator device traction capacity detecting system, including driving main frame traction distance detection device, displacement detector, And receive both signals and the signal processing apparatus of exceptional instructions is sent when difference reaches default, it is characterised in that be described Displacement detector is the displacement detector described in any one of claim 1~6.
- 8. elevator device traction capacity detecting system as claimed in claim 7, it is characterised in that also include receiving the exception To stop the brakes of car or counterweight motion, the brakes includes elevator driving main frame brake, limiter of speed peace for instruction At least one of full pincers, rail clamping device and rope brake.
- 9. elevator device traction capacity detecting system as claimed in claim 7, it is characterised in that also include receiving the exception Instruct the warning circuit to be prompted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245718.2U CN207192524U (en) | 2017-09-27 | 2017-09-27 | Displacement detector and traction capacity detecting system for elevator device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721245718.2U CN207192524U (en) | 2017-09-27 | 2017-09-27 | Displacement detector and traction capacity detecting system for elevator device |
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| CN207192524U true CN207192524U (en) | 2018-04-06 |
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ID=61787146
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| CN201721245718.2U Active CN207192524U (en) | 2017-09-27 | 2017-09-27 | Displacement detector and traction capacity detecting system for elevator device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111977488A (en) * | 2020-09-09 | 2020-11-24 | 山东劳动职业技术学院（山东劳动技师学院） | Two-way safety gear for elevator |
| CN115285861A (en) * | 2022-09-28 | 2022-11-04 | 博顿液压股份有限公司 | Hydraulic protective device for crane |
-
2017
- 2017-09-27 CN CN201721245718.2U patent/CN207192524U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111977488A (en) * | 2020-09-09 | 2020-11-24 | 山东劳动职业技术学院（山东劳动技师学院） | Two-way safety gear for elevator |
| CN111977488B (en) * | 2020-09-09 | 2021-10-26 | 山东劳动职业技术学院（山东劳动技师学院） | Bidirectional safety tongs for elevator |
| CN115285861A (en) * | 2022-09-28 | 2022-11-04 | 博顿液压股份有限公司 | Hydraulic protective device for crane |
| CN115285861B (en) * | 2022-09-28 | 2023-11-24 | 博顿液压股份有限公司 | Hydraulic protection device for crane |
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