CN111115404A - A kind of elevator wire rope broken rope broken strand detection device and detection method - Google Patents
A kind of elevator wire rope broken rope broken strand detection device and detection method Download PDFInfo
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- CN111115404A CN111115404A CN202010090797.4A CN202010090797A CN111115404A CN 111115404 A CN111115404 A CN 111115404A CN 202010090797 A CN202010090797 A CN 202010090797A CN 111115404 A CN111115404 A CN 111115404A
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- 238000001514 detection method Methods 0.000 title claims abstract description 219
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 80
- 239000010959 steel Substances 0.000 description 80
- 230000000694 effects Effects 0.000 description 4
- 230000036319 strand breaking Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
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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
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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Abstract
本发明提供一种电梯钢丝绳断绳断股检测装置，该检测装置安装于曳引轮下方钢丝绳垂直端的侧部；该检测装置包括基座、设置在基座上的电气开关、旋转臂和检测机构；所述检测机构位于钢丝绳的侧部；所述旋转臂与基座铰接，其铰接端的一侧与检测机构连接，铰接端的另一侧设置有与电气开关相触的触碰部；工作时，当断股或断绳处的钢丝绳触碰检测机构，通过旋转臂使得触碰部与电气开关接触的常闭触点相离，实现钢丝绳断股或断绳检测信号的输出，使制动器断电，制停电梯。本发明还提供一种电梯钢丝绳断绳断股检测方法。本发明灵敏度高，可快速、有效和可靠对电梯钢丝绳断绳断股情况进行检测，而且实用性强和成本低，从而有效提高电梯的安全性能。
The invention provides an elevator wire rope broken rope broken strand detection device. The detection device is installed on the side of the vertical end of the wire rope under the traction sheave; the detection device includes a base, an electrical switch arranged on the base, a rotating arm and a detection mechanism ; The detection mechanism is located on the side of the wire rope; the rotating arm is hinged with the base, one side of the hinged end is connected with the detection mechanism, and the other side of the hinged end is provided with a touch portion that contacts the electrical switch; when working, When the wire rope at the broken strand or rope touches the detection mechanism, the contact part is separated from the normally closed contact of the electrical switch through the rotating arm, so as to realize the output of the wire rope broken strand or broken rope detection signal, and make the brake power off. Stop the elevator. The invention also provides a method for detecting broken strands of elevator wire ropes. The invention has high sensitivity, can quickly, effectively and reliably detect the broken strands of the elevator wire rope, and has strong practicability and low cost, thereby effectively improving the safety performance of the elevator.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to a device and a method for detecting broken ropes and strands of an elevator steel wire rope.
Background
In modern society, the use of elevators is very widespread and inseparable from people's daily lives, and has become equipment for transporting everywhere people and goods among multi-story buildings, and the safety performance of elevators plays a crucial role. The elevator car and the counterweight device are connected through a steel wire rope, the steel wire rope is driven by the traction machine to move, the elevator car can move in a well, the steel wire rope is used as a main stress and force transmission part, and the safety performance of the steel wire rope has great influence on the use of the elevator.
Elevator wire rope usually has stranded steel wire stranding to form, and its safety problem mainly is disconnected strand, and in case the disconnected strand of wire rope appears, not only influence wire rope's factor of safety, if discovery still can lead to disconnected strand quantity increase in time, the disconnected rope phenomenon of wire rope appears even, seriously influences the safe operation of elevator.
At present, the method for detecting the rope breaking and strand breaking of the steel wire rope of the elevator mainly comprises regular manual detection. The manual detection mostly adopts a visual observation mode, so that the time consumption is long, the effect is poor, particularly for the steel wire rope with the length of hundreds of meters of a high-rise elevator, and the detection accuracy is difficult to ensure by the visual observation alone. Therefore, need to provide a reliable disconnected rope and strand detection mode of elevator wire rope, in time detect the disconnected rope and strand condition of elevator wire rope to change elevator wire rope according to the disconnected rope and strand condition of wire rope, eliminate elevator potential safety hazard.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provides a device and a method for detecting broken strands of an elevator steel wire rope.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an elevator wire rope broken rope strand breaking detection device which characterized in that: the detection device is arranged at the side part of the vertical end of the steel wire rope below the traction sheave; the detection device comprises a base, an electric switch arranged on the base, a rotating arm and a detection mechanism; the detection mechanism is positioned on the side part of the steel wire rope; the rotating arm is hinged with the base, one side of the hinged end of the rotating arm is connected with the detection mechanism, and the other side of the hinged end is provided with a touch part which is contacted with the electric switch; when the device works, when the steel wire rope at the position of strand breakage or rope breakage touches the detection mechanism, the touch part is separated from the normally closed contact contacted with the electric switch through the rotating arm, and the output of a detection signal of strand breakage or rope breakage of the steel wire rope is realized. When the elevator control system receives a steel wire rope strand breakage or rope breakage detection signal, the control system controls the traction machine to be powered off, and meanwhile, the elevator brake enables the elevator to stop running immediately until the safety of the elevator is guaranteed or maintenance personnel are informed to replace the steel wire rope in time.
In the above scheme, when the elevator runs, the detection mechanism is located on the side of the steel wire rope, when any one of the steel wire ropes is broken or the rope is directly broken, the detection mechanism connected with the rotating arm is touched, the touched part is separated from the normally closed contact contacted with the electrical switch through the rotating arm, the output of a detection signal of the broken strand or the broken rope of the steel wire rope is realized, the condition that the strand or the rope of the elevator steel wire rope is broken is quickly, effectively and reliably detected, the safety performance of the elevator is effectively improved, and the purpose of preventing the elevator from being suffered in the bud is achieved. In addition, the detection device is simple in structure and strong in practicability, and detection results can be greatly reduced.
The base is arranged on the traction frame and is positioned on the side part of the vertical outlet end of the steel wire rope of the traction machine;
or the detection device is arranged at the side part of the vertical end of the steel wire rope below the elevator guide wheel.
The rotating arm comprises a vertical frame body; the vertical end of the vertical frame body is hinged with the base, one straight edge of the vertical frame body is connected with the detection mechanism, and the other straight edge of the vertical frame body is connected with the touch part;
the touch part comprises a transverse rod and a bolt, the transverse rod is perpendicular to the two straight edges of the vertical frame body, and the bolt is in contact with the electrical switch; one end of the transverse rod is connected with the rotating arm, and the other end of the transverse rod is connected with the bolt.
The structure design is ingenious, the detection device realizes the output of a steel wire rope broken rope and strand broken detection signal in a simple mode that the vertical frame body and the normally closed contact of the electric switch are separated, a signal is output to a control system and a maintenance worker, the work of the elevator traction machine is stopped, and the elevator is braked and stopped.
The detection mechanism penetrates through the rotating arm and is positioned on two sides of the rotating arm;
or the detection mechanism is connected with the rotating arm and is positioned on one side of the rotating arm.
The side detection mechanism has three structures:
the first structure is as follows: the detection mechanism comprises two detection rods positioned on two sides of the steel wire rope. The detection mechanism can detect the strand breaking or rope breaking conditions of the two side edges of the steel wire rope.
The second structure is as follows: the detection mechanism further comprises a U-shaped fixing clamp; the U-shaped fixing clamp is connected with the end parts of the two detection rods respectively, so that the two detection rods form a closed loop structure. The detection mechanism can detect the strand breaking or rope breaking conditions of the two side edges of the steel wire rope.
The third structure is: the detection mechanism also comprises a plurality of separating rods; the plurality of separating rods are uniformly arranged to penetrate through the two detecting rods, the two detecting rods are separated into a plurality of detecting frames, each detecting frame is surrounded by each steel wire rope, and comprehensive detection on strand breakage or rope breakage of each steel wire rope is achieved. The detection mechanism can detect the strand breakage or rope breakage condition around the steel wire rope, and the structure increases the detection area, so that the effects of comprehensive detection and sensitivity detection improvement can be achieved.
Each detection frame is a square detection frame, and the side length of each square detection frame is 2-2.5 times of the diameter of each steel wire rope;
the separating rod is a steel wire buckle, one end of the steel wire buckle is provided with a raised head, and the other end of the steel wire buckle is provided with a bending part for preventing falling. The length of the side of the square detection frame is set, so that the normal vertical operation of the steel wire rope can be ensured, the detection mechanism can be prevented from being touched by mistake, and the detection sensitivity can be improved. The separating rod is arranged as a steel wire buckle, so that the structural strength of the detection mechanism can be ensured, and the separating rod is prevented from falling.
A method for detecting rope breakage and strand breakage of an elevator steel wire rope is characterized by comprising the following steps: a detection device with a base is arranged on the side part of the vertical end of the steel wire rope below the traction sheave, and an electric switch and a hinged connection rotating arm are fixedly arranged on the base; one side of the hinged end of the rotating arm is provided with a detection mechanism, and the other side of the hinged end of the rotating arm is provided with a touch part;
the detection method comprises the steps that the detection mechanisms are arranged around the steel wire rope to achieve the purpose that a plurality of continuous detection areas are arranged around the steel wire rope, or the detection mechanisms are arranged on two sides of the steel wire rope to achieve the purpose that the continuous detection areas are arranged on two sides of the steel wire rope; when the steel wire rope at the position of strand breakage or rope breakage touches the detection area, the rotating arm loses static balance to generate rotary motion so as to drive the touch part to do swing motion and separate from the normally closed contact contacted with the electric switch, and the normally closed contact of the electric switch acts under the action of the spring to realize the output of the detection signal of strand breakage or rope breakage of the steel wire rope;
when the elevator control system receives a steel wire rope strand breakage or rope breakage detection signal, the control system controls the traction machine to be powered off, and meanwhile, the elevator brake enables the elevator to stop running immediately until the safety of the elevator is guaranteed or maintenance personnel are informed to replace the steel wire rope in time.
In the scheme, the detection method provided by the invention is a mode of increasing the detection area at the side part of the steel wire rope, so that the detection sensitivity can be increased, and the effect of comprehensive detection can be achieved. When the detection device is triggered, a signal is transmitted to a control system and a maintenance worker through the electric switch until the elevator is stopped and the maintenance worker is informed to carry out treatment or maintenance, and when the reset switch is manually adjusted to be in a normal state, the elevator can not normally run.
The detection mechanism comprises two detection rods positioned on two sides of the steel wire rope; the detection area comprises two detection rods;
or the detection mechanism further comprises a U-shaped fixing clamp; the U-shaped fixing clamp is respectively connected with the end parts of the two detection rods, so that the two detection rods form a closed loop structure; the detection area comprises two detection rods and a U-shaped fixing clamp;
or the detection mechanism also comprises a plurality of separating rods; the plurality of separation rods are uniformly arranged and penetrate through the two detection rods, the two detection rods are separated into a plurality of detection frames, and each steel wire rope is surrounded by each detection frame; the detection area is a detection rod and a separation rod which form the detection frame, or the detection area is a detection rod, a U-shaped fixing clamp and a separation rod which form the detection frame.
When the traction scheme of the traction machine is provided with the guide wheel, the detection device is arranged on the traction frame and is positioned at the side part of the vertical outlet end of the steel wire rope of the traction machine; and/or the detection device is arranged at the side part of the vertical end of the steel wire rope below the elevator guide wheel;
when the traction scheme of the traction machine has no guide wheel, the detection device is arranged below the traction wheel and is positioned at the side part of the vertical outlet end of the steel wire rope of the traction machine.
The detection method can set the position of the detection device according to the traction scheme of whether the guide wheel is arranged, and further improves the comprehensiveness and reliability of the detection of the phenomenon of strand breakage or rope breakage of the steel wire rope.
Compared with the prior art, the invention has the following advantages and beneficial effects: the device and the method for detecting the broken rope and the broken strand of the elevator steel wire rope have high sensitivity, can quickly, effectively and reliably detect the broken rope and the broken strand of the elevator steel wire rope, and have strong practicability and low cost, thereby effectively improving the safety performance of the elevator.
Drawings
FIG. 1 is a schematic view of a device for detecting a broken rope and a broken strand of an elevator rope according to a first embodiment;
FIG. 2 is a schematic view of the inside of a device for detecting a broken rope and a broken strand of an elevator rope according to the first embodiment;
FIG. 3 is a schematic view of a steel screw thread according to a first embodiment;
fig. 4 is a schematic view of the installation of the detecting device when the traction solution is provided with a guide wheel in the first embodiment;
fig. 5 is a detailed schematic diagram of the detection device in fig. 4 for detecting the steel wire rope at a (wherein, only two detection rods are illustrated in the detection mechanism);
FIG. 6 is a schematic view of the detection device installed without the guide wheels in the traction solution according to the first embodiment;
FIG. 7 is a schematic view of a device for detecting a broken rope and a broken strand of an elevator rope according to a second embodiment;
FIG. 8 is a schematic view of a device for detecting a broken rope and a broken strand of an elevator rope according to a third embodiment;
FIG. 9 is a schematic view of a device for detecting a broken rope and a broken strand of an elevator rope according to a fourth embodiment;
FIG. 10 is a schematic view of an elevator rope breakage detecting apparatus according to the fifth embodiment;
wherein, 1 is a steel wire rope, 2 is a base, 3 is an electric switch, 3.1 is a normally closed contact, 4 is a rotating arm, 5 is a cover body, 6 is a traction frame, 7 is a traction machine, 8 is a transverse rod, 9 is a bolt, 10 is a detection mechanism, 10.1 is a detection rod, 10.2 is a separation rod, 10.21 is a raised head, 10.22 is a bending part, 10.3 is a U-shaped fixing clamp, 11 is a traction sheave, and 12 is a guide sheave.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1 to 6, the device for detecting a broken rope and a broken strand of an elevator rope according to the present invention is installed at a side portion of a vertical end of a steel rope 1 below a traction sheave 11; the detection device comprises a base 2, an electrical switch 3 arranged on the base 2, a rotating arm 4, a cover body 5 and a detection mechanism 10, wherein the detection mechanism 10 is positioned on the side part of a steel wire rope 1, the rotating arm 4 is hinged with the base 2, one side of a hinged end of the rotating arm is connected with the detection mechanism 10, the other side of the hinged end is provided with a touch part which is contacted with the electrical switch 3, and the cover body 5 is covered with the base 2; during operation, when the steel wire rope 1 at the position of strand breakage or rope breakage touches the detection mechanism 10, the touch part is separated from the normally closed contact 3.1 contacted with the electric switch 3 through the rotating arm 4, and the output of a strand breakage or rope breakage detection signal of the steel wire rope 1 is realized.
Specifically, the rotating arm 4 comprises a vertical frame; the vertical end of the vertical frame body is hinged with the base, one straight edge of the vertical frame body is connected with the detection mechanism 10, the other straight edge of the vertical frame body is connected with the touch part, the touch part comprises a transverse rod 8 and a bolt 9, the transverse rod 8 is perpendicular to the two straight edges of the vertical frame body, the bolt 9 is in contact with the electric switch 3, one end of the transverse rod 8 is connected with the rotating arm 4, and the other end of the transverse rod is connected with the bolt 9. This structural design is ingenious, and detection device realizes 1 disconnected strand of wire rope or the output of disconnected rope detected signal with the mode that simple perpendicular support body and 3 normally closed contacts of electrical switch 3.1 leave mutually, gives control system and maintenance personnel a signal output, stops elevator hauler 7 work.
The detection mechanism 10 is arranged on the rotating arm 4 in a penetrating mode and located on two sides of the rotating arm 4, the detection mechanism 10 comprises two detection rods 10.1 located on two sides of a steel wire rope 1, a U-shaped fixing clamp 10.3 and a plurality of separation rods 10.2, and the U-shaped fixing clamp 10.3 is connected with the end portions of the two detection rods 10.1 respectively, so that the two detection rods 10.1 form a closed loop structure. The plurality of separating rods 10.2 are uniformly arranged to penetrate through the two detection rods 10.1, the two detection rods 10.1 are separated into a plurality of detection frames, each detection frame surrounds each steel wire rope 1, and comprehensive detection on strand breakage or rope breakage conditions of each steel wire rope 1 is achieved. The detection mechanism 10 can detect the strand breakage or rope breakage condition around the steel wire rope 1, and the structure increases the detection area, so that the effects of comprehensive detection and sensitivity detection improvement can be achieved. Each detection frame of the embodiment is a square detection frame, and the side length of each square detection frame is 2-2.5 times of the diameter of each steel wire rope 1, so that the normal vertical operation of the steel wire ropes 1 can be ensured, the mistaken touch and collision of the detection mechanism 10 can be prevented, and the detection sensitivity can be improved. In addition, the separating rod 10.2 is a steel wire buckle, one end of the steel wire buckle is provided with a raised head 10.21, and the other end of the steel wire buckle is provided with a bending part 10.22 for preventing falling. The length of the side of the square detection frame is set, and the separating rod 10.2 is set as a steel wire buckle, so that the structural strength of the detection mechanism 10 can be ensured, and the separating rod 10.2 is prevented from falling off.
The invention discloses a method for detecting broken rope and strand of an elevator steel wire rope, which comprises the following steps: enclose detection mechanism 10 and locate wire rope 1 and realize setting up a plurality of continuous detection area all around to wire rope 1, when disconnected strand or the wire rope 1 touching detection area of disconnected rope department for swinging boom 4 loses static balance and produces rotary motion, so that drive touching portion is swing motion, and with the normally closed contact 3.1 of electrical switch 3 contact from each other, electrical switch 3's normally closed contact 3.1 moves under the spring action, realizes that 1 strand of wire rope breaks or the detection signal output of disconnected rope. The detection area comprises a detection rod 10.1 and a separation rod 10.2 which form the detection frame, or the detection area comprises a detection rod 10.1, a U-shaped fixing clamp 10.3 and a separation rod 10.2 which form the detection frame.
When the elevator control system receives a detection signal that the strand of the steel wire rope 1 is broken or the rope is broken, the control system controls the traction machine 7 to be powered off, and meanwhile, the elevator brake enables the elevator to stop running immediately until the safety of the elevator is guaranteed or maintenance personnel are informed to replace the steel wire rope 1 in time.
When the guide wheel is needed in the traction scheme, one of the detection devices is arranged on the traction frame 6 and is positioned at the side of the vertical outlet end (A in figure 4) of the steel wire rope 1 of the traction machine 7; another detecting device is installed at the side of the vertical end (at B in fig. 4) of the wire rope 1 below the elevator guide sheave 12. Alternatively, only one detecting device is provided, at one of two mounting positions of the above-described two detecting devices, i.e., at the side at a or B in fig. 4.
When the guide sheave is not needed for the traction solution, the detection method is to install two detection devices under both sides of the traction sheave of the traction frame, respectively, and at the side of the vertical exit end (C and D in fig. 6) of the wire rope 1 of the traction machine 7. Alternatively, only one detection device is provided, either at the side at C or D in fig. 6.
Example two
The present embodiment is different from the first embodiment only in that: as shown in fig. 7, the structure of the detecting mechanism 10 is different, the detecting mechanism 10 of the second embodiment includes only two detecting rods 10.1 and U-shaped fixing clips 10.3 located at two sides of the steel wire rope 1, and the U-shaped fixing clips 10.3 are respectively connected with the end portions of the two detecting rods 10.1, so that the two detecting rods 10.1 form a closed loop structure.
The detection method of the embodiment is that the detection mechanisms 10 are arranged at two sides of the steel wire rope 1 to realize that continuous detection areas are arranged at two sides of the steel wire rope 1; when the steel wire rope 1 at the position of strand breakage or rope breakage touches the detection area, the rotating arm 4 loses static balance to generate rotary motion so as to drive the touch part to do swing motion and separate from the normally closed contact contacted with the electric switch, and the normally closed contact of the electric switch acts under the action of the spring to realize the output of the strand breakage or rope breakage detection signal of the steel wire rope 1. Wherein, the detection area is two detection rods 10.1.
Other structures of the present embodiment are consistent with the present embodiment.
EXAMPLE III
As shown in fig. 8, the present embodiment is different from the second embodiment only in that: the detection mechanism 10 of the present embodiment is connected to the rotary arm 4 and is located on the side of the rotary arm 4.
The other structures of the present embodiment are the same as those of the second embodiment.
Example four
As shown in fig. 9, the present embodiment is different from the second embodiment only in that: this embodiment does not include a U-shaped retaining clip and the detection mechanism only includes a detection lever 10.1.
The other structures of the present embodiment are the same as those of the second embodiment.
EXAMPLE five
As shown in fig. 10, the present embodiment is different from the third embodiment only in that: this embodiment does not include a U-shaped retaining clip and the detection mechanism only includes a detection lever 10.1.
The other structures of this embodiment are the same as those of the third embodiment.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090797.4A CN111115404B (en) | 2020-02-13 | 2020-02-13 | Elevator steel wire rope breakage and strand breakage detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010090797.4A CN111115404B (en) | 2020-02-13 | 2020-02-13 | Elevator steel wire rope breakage and strand breakage detection device and detection method thereof |
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| CN111115404A true CN111115404A (en) | 2020-05-08 |
| CN111115404B CN111115404B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010090797.4A Active CN111115404B (en) | 2020-02-13 | 2020-02-13 | Elevator steel wire rope breakage and strand breakage detection device and detection method thereof |
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| CN (1) | CN111115404B (en) |
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| CN111847191A (en) * | 2020-07-08 | 2020-10-30 | 上海三菱电梯有限公司 | Elevator steel wire rope broken wire and strand detection system and steel wire rope broken wire and strand detection device |
| CN112623898A (en) * | 2020-12-30 | 2021-04-09 | 浙江埃克森电梯有限公司 | Device is verified to home use elevator wire rope break-make |
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| CN112623898A (en) * | 2020-12-30 | 2021-04-09 | 浙江埃克森电梯有限公司 | Device is verified to home use elevator wire rope break-make |
| CN112623898B (en) * | 2020-12-30 | 2022-04-12 | 浙江埃克森电梯有限公司 | Device is verified to home use elevator wire rope break-make |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111115404B (en) | 2023-11-10 |
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Address after: 528225 North Park of Shishan Science and Technology Industrial Park, Shishan town, Nanhai District, Foshan City, Guangdong Province Patentee after: Lingwang Elevator Co.,Ltd. Country or region after: China Address before: 528225 North Park of Shishan Science and Technology Industrial Park, Shishan town, Nanhai District, Foshan City, Guangdong Province Patentee before: WINONE ELEVATOR Co.,Ltd. Country or region before: China |
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