CN111252642A - Multi-rope friction type lifter tail rope protection device and method - Google Patents
Multi-rope friction type lifter tail rope protection device and method Download PDFInfo
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- CN111252642A CN111252642A CN202010142161.XA CN202010142161A CN111252642A CN 111252642 A CN111252642 A CN 111252642A CN 202010142161 A CN202010142161 A CN 202010142161A CN 111252642 A CN111252642 A CN 111252642A
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- rope
- tail rope
- tail
- steel wire
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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
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the field of mine multi-rope friction type hoists, and particularly relates to a mine multi-rope friction type hoist tail rope protection device and a method, wherein the mine multi-rope friction type hoist tail rope protection device comprises a shaft, a fixed base, a guide groove, a movable rod, a connecting rod, a tail rope detection rod, a linkage steel wire rope connecting ring and a linkage steel wire rope, the tail rope detection rod is driven to move when a tail rope in the tail rope protection device is twisted, and the tail rope detection rod is linked with a limit switch in the movement process through the linkage steel wire rope, so that the tail rope state is detected, and the danger is avoided; the device adopts a mechanical structure, is not easily influenced by the environment, and is suitable for occasions with much dust and severe environment; the invention solves the problems of high maintenance cost and low safety of the protection device in the prior art, improves the safety of the tail rope protection device and is suitable for more severe environments.
Description
Technical Field
The invention belongs to the field of mine multi-rope friction type hoists, and particularly relates to a tail rope protection device and method of a mine multi-rope friction type hoist.
Background
In a multi-rope lifting system, a balance tail rope is an important component, but when the tail rope is lifted, axial force and radial deflection are generated, so that the tail rope rotates. The underground environment is severe, the tail rope rotating device at the bottom of the lifting container is prone to failure, and the tail rope can be subjected to increased tension and twisted. In order to prevent the tail rope from being twisted at the bottom of the shaft, the isolating wood is easy to deform and shift due to the influences of rotting, friction, external force impact and the like, and the conditions of hanging, blocking and the like are easily caused on the isolating wood by the steel wire rope in operation due to various swinging, so that the tail rope knotting accident is caused.
When the tail rope is hung, clamped, twisted and the like due to various reasons, the protection device acts and is interlocked with a PLC (programmable logic controller) protection program of the hoister, a safety circuit of the hoister trips to automatically stop, and the accident can be prevented from further expanding and even breaking the tail rope.
Chinese patent document CN101857159B discloses a protection and control device for tail rope kinking of a hoisting machine, which includes a detection device disposed below a tail rope isolation beam in a shaft and touched by the tail rope when the tail rope kinks; the sensing device is connected with the detection device to sense that the tail rope touches the detection device; the control device is connected with the sensing device to stop the motor of the elevator when the sensing device senses that the tail rope touches the detection device, the device can detect whether the tail rope of the elevator is knotted or not to prevent danger, but the cost for installing the sensing device and the detection device is high, electronic detection equipment needs to be maintained frequently and consumes manpower and material resources, and once the electronic detection equipment is damaged, the electronic detection equipment cannot play a role in protection, and personnel hazards can be caused.
Chinese patent document CN209796659U discloses a hoist tail rope anti-twist device, the device is through optimizing the mounted position of detection switch, through the guide effect that increases tail rope protection wire rope and pulley, with detection switch under by the insulated wood shift to horse head door department, operating personnel go into the pit every day and pull tail rope protection wire rope alright with the inspection switch whether sensitive, if the tail rope kinks, can report to the police not to the insulated wood, it is more convenient to overhaul improve equipment operation stability, but the device still has the shortcoming of extravagant manpower, and the dust is great in the pit shaft, produce the influence to detection device's detection effect.
Disclosure of Invention
Aiming at the problems in the prior art, the invention discloses a tail rope protection device and a tail rope protection method for a multi-rope friction type elevator, and solves the problems that the tail rope protection device in the prior art is high in maintenance cost and low in safety.
The specific technical scheme disclosed by the invention is as follows: a multi-rope friction type lifter tail rope protection device comprises a shaft, a fixed base, a guide groove, a movable rod, a connecting rod, a tail rope detection rod, a linkage steel wire rope connecting ring and a linkage steel wire rope, wherein a plurality of layers of isolating wood beams are arranged at the lower part of the shaft, isolating wood is arranged above each layer of isolating wood beam, and the fixed base is fixedly connected below the bottom layer of isolating wood beams; two groups of guide grooves are arranged and symmetrically and fixedly connected to two ends of the fixed base; the movable rod is parallel to the lower surface of the fixed base, and two ends of the movable rod are connected in the guide groove in a sliding manner; the tail rope detection rod is positioned below the movable rod and fixedly connected with the movable rod through two groups of connecting rods; the linkage steel wire rope connecting ring is fixed in the middle of the tail rope detection rod; a belt conveying channel is arranged at the upper part of the shaft, and the limit switch is fixed in the belt conveying channel; one end of the linkage steel wire rope is fixedly connected with the linkage steel wire rope connecting ring, and the other end of the linkage steel wire rope is linked with the limit switch.
Preferably, every group guide way all adopts two angle irons to make, the angle iron is vertical to be fixed unable adjustment base one end is provided with the space between the angle iron, the movable rod is in can follow vertical direction and slide in the space.
Preferably, the angle iron and the fixed base are fixedly connected by adopting a welding mode.
Preferably, two isolating wood beams are arranged on the same layer and are parallel to each other, two isolating woods are arranged on the upper surface of each isolating wood beam, and each isolating wood is vertically and fixedly connected to the two isolating wood beams.
Preferably, the movable rod is made of a circular steel pipe through welding.
Preferably, the fixing base is located at a position between the isolating bars and is parallel to the isolating bars.
Preferably, the device further comprises a PLC system and an upper computer system, and the limit switch is connected with the PLC system and the upper computer system, transmits signals and participates in protection linkage of the elevator.
Preferably, the device also comprises an alarm system, wherein the alarm system is connected with the limit switch and can give out sound and light alarm after receiving the limit signal.
Preferably, the device further comprises a linkage steel wire rope guide pulley fixed on the side wall of the shaft and located below the linkage steel wire rope connecting ring.
By utilizing the tail rope protection device, the invention also provides a tail rope protection method, which comprises the following steps:
when various faults occur in the tail rope in the lifter, the tail rope moves upwards;
the tail rope drives the movable rod to move upwards along the guide groove, and the tail rope inspection rod is driven to move upwards through the connecting rod;
the linkage steel wire rope connected with the tail rope inspection rod moves upwards, and after the linkage steel wire rope moves for a certain distance, the linkage steel wire rope drives the limit switch to act to send a limit signal;
the limiting signal is transmitted to the PLC system, a protection linkage of the hoister is started, and the hoister stops automatically in an emergency;
and after the elevator is stopped, the alarm system acts to send out an alarm, and simultaneously, the tail rope protection action is displayed on the picture of the upper computer to inform an operator of processing in time.
Compared with the prior art, the invention has the following advantages:
1) according to the invention, the tail rope detection rod is matched with the tail rope, and the vertical displacement distance of the tail rope is detected, so that the kinking of the tail rope is judged, the elevator stops moving, the safety of personnel is protected, the principle is simple, and the safety is high.
2) The tail rope protection device is low in material cost, simple in structure, convenient to maintain by operators and capable of saving manpower resources.
3) The invention adopts a mechanical structure, has no precise electronic equipment, is suitable for occasions with severe environment and has wider application range.
Drawings
Fig. 1 is an assembly structure diagram of a tail rope protection device of a multi-rope friction type hoist in the embodiment of the invention;
FIG. 2 is a top cross-sectional view of a tail rope protection device of a multi-rope friction hoist according to an embodiment of the present invention;
fig. 3 is a front structural view of a tail rope protection device of a multi-rope friction type hoist in the embodiment of the invention;
fig. 4 is a side view structural diagram of a tail rope protection device of a multi-rope friction type hoist in the embodiment of the invention.
The specific meanings of the reference numbers in the drawings:
1-tail rope, 2-second layer of isolating wood, 3-tail rope protection device, 301-fixed base, 302-guide groove, 303-movable rod, 304-connecting rod, 305-tail rope detection rod, 306-linkage steel wire rope connecting ring, 4-first layer of isolating wood, 5-linkage steel wire rope, 6-limit switch, 7-PLC system, 8-upper computer system, 9-shaft, 10-isolating wood beam and 11-linkage steel wire rope guide pulley.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, and it should be understood that the embodiments described herein are merely for the purpose of illustrating and explaining the present invention and are not intended to limit the present invention.
Example (b):
referring to fig. 1-4, a tail rope protection device for a multi-rope friction type hoist comprises a shaft 9, a fixed base 301, a guide groove 302, a movable rod 303, a connecting rod 304, a tail rope detection rod 305, a linkage steel wire rope connecting ring 306 and a linkage steel wire rope 5, wherein two layers of isolated wood beams 10 are arranged at the lower part of the shaft 9, isolated wood is arranged above each layer of isolated wood beam 10, and the fixed base 301 is fixedly connected below the second layer of isolated wood beam; two groups of guide grooves 302 are symmetrically and fixedly connected to two ends of the fixed base 301; the movable rod 303 is parallel to the lower surface of the fixed base 301, and two ends of the movable rod are slidably connected in the guide groove 302; the tail rope detection rod 305 is positioned below the movable rod 303, and the tail rope detection rod 305 and the movable rod 303 are fixedly connected through two groups of connecting rods 304; the linkage steel wire rope connecting ring 306 is fixed in the middle of the tail rope detection rod 305; a belt conveying channel is arranged at the upper part of the shaft 9, and the limit switch 6 is fixed in the belt conveying channel; one end of the linkage steel wire rope 5 is fixedly connected with the linkage steel wire rope connecting ring 306, and the other end of the linkage steel wire rope is linked with the limit switch 6.
Every group's guide way 302 all adopts two angle irons to make, preferably adopts 30 angle irons, and length is 60cm, the angle iron is vertical to be fixed unable adjustment base 301 one end is provided with the space between the angle iron, movable rod 303 is in can follow vertical direction and slide in the space.
The angle iron is fixedly connected with the fixed base 301 in a welding mode.
The same layer sets up two and keeps apart wooden crossbeam 10, and two keep apart wooden crossbeams are parallel to each other, keep apart wooden crossbeam upper surface and be provided with two and keep apart the wood, every is kept apart the equal perpendicular fixed connection of wood and is kept apart on wooden crossbeam.
The movable rod 303 is made of a round steel pipe through welding, preferably a DN25 round pipe, and is made of two DN25 round pipes with the length of 40cm through welding. .
The fixing base 301 is located between the isolating bars and parallel to the isolating bars.
The device further comprises a PLC system 7 and an upper computer system 8, wherein the limit switch 6 is connected with the PLC system 7 and the upper computer system 8, transmits signals and participates in protection linkage of the elevator.
The device also comprises an alarm system, wherein the alarm system is connected with the limit switch and can give out audible and visual alarm after receiving the limit signal.
The device also comprises a linkage steel wire rope guide pulley 11 which is fixed on the side wall of the shaft 9 and is positioned below the linkage steel wire rope connecting ring 306.
By utilizing the tail rope protection device, the invention also provides a tail rope protection method, which comprises the following steps:
when various faults occur in the tail rope in the lifter, the tail rope moves upwards;
the tail rope drives the movable rod to move upwards along the guide groove, and the tail rope inspection rod is driven to move upwards through the connecting rod;
the linkage steel wire rope connected with the tail rope inspection rod moves upwards, and after the linkage steel wire rope moves for a certain distance, the linkage steel wire rope drives the limit switch to act to send a limit signal;
the limiting signal is transmitted to the PLC system, a protection linkage of the hoister is started, and the hoister stops automatically in an emergency;
and after the elevator is stopped, the alarm system acts to send out an alarm, and simultaneously, the tail rope protection action is displayed on the picture of the upper computer to inform an operator of processing in time.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A friction formula lifting machine tail rope protection device of restricting more characterized in that: the device comprises a shaft, a fixed base, a guide groove, a movable rod, a connecting rod, a tail rope detection rod, a linkage steel wire rope connecting ring and a linkage steel wire rope, wherein a plurality of layers of isolating wood beams are arranged at the lower part of the shaft, isolating wood is arranged above each layer of isolating wood beam, and the fixed base is fixedly connected below the bottom isolating wood beam; two groups of guide grooves are arranged and symmetrically and fixedly connected to two ends of the fixed base; the movable rod is parallel to the lower surface of the fixed base, and two ends of the movable rod are connected in the guide groove in a sliding manner; the tail rope detection rod is positioned below the movable rod and fixedly connected with the movable rod through two groups of connecting rods; the linkage steel wire rope connecting ring is fixed in the middle of the tail rope detection rod; a belt conveying channel is arranged at the upper part of the shaft, and the limit switch is fixed in the belt conveying channel; one end of the linkage steel wire rope is fixedly connected with the linkage steel wire rope connecting ring, and the other end of the linkage steel wire rope is linked with the limit switch.
2. The tail rope protection device of multi-rope friction type hoist as claimed in claim 1, wherein: every group guide way all adopts two angle irons to make, the angle iron is vertical to be fixed unable adjustment base one end is provided with the space between the angle iron, the movable rod is in can follow vertical direction and slide in the space.
3. The tail rope protection device of multi-rope friction type hoist as claimed in claim 2, characterized in that: the angle iron is fixedly connected with the fixed base in a welding mode.
4. A multi-rope friction type hoist tail rope protection device as claimed in claim 3, wherein: the same layer sets up two and keeps apart the wood crossbeam, and two keep apart the wood crossbeam and be parallel to each other, keep apart the wood crossbeam upper surface and be provided with two and keep apart the wood, every keeps apart the equal perpendicular fixed connection of wood on two keep apart the wood crossbeam.
5. The tail rope protection device of multi-rope friction type hoist as claimed in claim 4, characterized in that: the movable rod is made of circular steel tubes through welding.
6. The tail rope protection device of multi-rope friction type hoist as claimed in claim 5, wherein: the fixed base is positioned between the isolation woods and is parallel to the isolation woods.
7. The tail rope protector for multi-rope friction hoist as claimed in claim 6, characterized by: the limit switch is connected with the PLC system and the upper computer system, transmits signals and participates in protection linkage of the elevator.
8. The tail rope protector for multi-rope friction hoist as claimed in claim 7, wherein: the alarm system is connected with the limit switch and can give out sound and light alarm after receiving the limit signal.
9. The tail rope protector for multi-rope friction hoist as claimed in claim 8, wherein: the linkage steel wire rope guide pulley is fixed on the side wall of the shaft and located below the linkage steel wire rope connecting ring.
10. A tail rope protection method using the multi-rope friction type hoist tail rope protection device of any one of claims 1 to 9, characterized by comprising the following steps:
when various faults occur in the tail rope in the lifter, the tail rope moves upwards;
the tail rope drives the movable rod to move upwards along the guide groove, and the tail rope inspection rod is driven to move upwards through the connecting rod;
the linkage steel wire rope connected with the tail rope inspection rod moves upwards, and after the linkage steel wire rope moves for a certain distance, the linkage steel wire rope drives the limit switch to act to send a limit signal;
the limiting signal is transmitted to the PLC system, a protection linkage of the hoister is started, and the hoister stops automatically in an emergency;
and after the elevator is stopped, the alarm system acts to send out an alarm, and simultaneously, the tail rope protection action is displayed on the picture of the upper computer to inform an operator of processing in time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142161.XA CN111252642B (en) | 2020-03-04 | 2020-03-04 | Multi-rope friction type lifter tail rope protection device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142161.XA CN111252642B (en) | 2020-03-04 | 2020-03-04 | Multi-rope friction type lifter tail rope protection device and method |
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| Publication Number | Publication Date |
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| CN111252642A true CN111252642A (en) | 2020-06-09 |
| CN111252642B CN111252642B (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010142161.XA Active CN111252642B (en) | 2020-03-04 | 2020-03-04 | Multi-rope friction type lifter tail rope protection device and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09240957A (en) * | 1996-03-05 | 1997-09-16 | Mitsubishi Denki Bill Techno Service Kk | Main rope guide device of elevator |
| CN101798045A (en) * | 2010-04-12 | 2010-08-11 | 山东煤安矿山提升设备安装有限公司 | Fast exchanging process for tail rope |
| CN101857159A (en) * | 2010-06-03 | 2010-10-13 | 中国恩菲工程技术有限公司 | Device for protecting and controlling tail rope kinking of hoisting machine |
| CN202390043U (en) * | 2011-11-17 | 2012-08-22 | 江西铜业股份有限公司 | Tail rope twisting prevention device of friction wheel lifting machine |
| US20170107081A1 (en) * | 2015-10-20 | 2017-04-20 | Songsan Special Elevators Co., Ltd. | Supersized elevator for use in building large ship or offshore plant |
| CN106882665A (en) * | 2017-04-18 | 2017-06-23 | 湖北光大智能科技有限公司 | A kind of tail ropes of elevator kink detection means |
| CN108394800A (en) * | 2018-03-28 | 2018-08-14 | 徐州九益科技有限公司 | Vertical shaft hoist tail rope Replacement procedure |
| CN209796659U (en) * | 2019-04-24 | 2019-12-17 | 张成文 | Torsion-proof device for tail rope of elevator |
-
2020
- 2020-03-04 CN CN202010142161.XA patent/CN111252642B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09240957A (en) * | 1996-03-05 | 1997-09-16 | Mitsubishi Denki Bill Techno Service Kk | Main rope guide device of elevator |
| CN101798045A (en) * | 2010-04-12 | 2010-08-11 | 山东煤安矿山提升设备安装有限公司 | Fast exchanging process for tail rope |
| CN101857159A (en) * | 2010-06-03 | 2010-10-13 | 中国恩菲工程技术有限公司 | Device for protecting and controlling tail rope kinking of hoisting machine |
| CN202390043U (en) * | 2011-11-17 | 2012-08-22 | 江西铜业股份有限公司 | Tail rope twisting prevention device of friction wheel lifting machine |
| US20170107081A1 (en) * | 2015-10-20 | 2017-04-20 | Songsan Special Elevators Co., Ltd. | Supersized elevator for use in building large ship or offshore plant |
| CN106882665A (en) * | 2017-04-18 | 2017-06-23 | 湖北光大智能科技有限公司 | A kind of tail ropes of elevator kink detection means |
| CN108394800A (en) * | 2018-03-28 | 2018-08-14 | 徐州九益科技有限公司 | Vertical shaft hoist tail rope Replacement procedure |
| CN209796659U (en) * | 2019-04-24 | 2019-12-17 | 张成文 | Torsion-proof device for tail rope of elevator |
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| CN111252642B (en) | 2020-11-03 |
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