AU2015372215A1 - Device and method for detecting disordered rope in multi-layer winding around reel - Google Patents

Device and method for detecting disordered rope in multi-layer winding around reel Download PDF

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Publication number
AU2015372215A1
AU2015372215A1 AU2015372215A AU2015372215A AU2015372215A1 AU 2015372215 A1 AU2015372215 A1 AU 2015372215A1 AU 2015372215 A AU2015372215 A AU 2015372215A AU 2015372215 A AU2015372215 A AU 2015372215A AU 2015372215 A1 AU2015372215 A1 AU 2015372215A1
Authority
AU
Australia
Prior art keywords
rope
lead screw
reel
support
contact switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
AU2015372215A
Inventor
Guohua Cao
Wei Li
Shanzeng LIU
Hao LU
Weihong Peng
Yuxing PENG
Gang Shen
Zhiqiang Zhang
Gongbo Zhou
Zhencai Zhu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Publication of AU2015372215A1 publication Critical patent/AU2015372215A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54Safety gear
    • B66D1/56Adaptations of limit switches
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/54Safety gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • B66D1/36Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • B66D1/36Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B66D1/38Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/35Ropes, lines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00Winding, coiling, or depositing filamentary material
    • B65H54/02Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28Traversing devices; Package-shaping arrangements
    • B65H54/2848Arrangements for aligned winding
    • B65H54/2854Detection or control of aligned winding or reversal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/04Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to excessive tension or irregular operation of apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00Capstans, winches or hoists
    • B66D2700/01Winches, capstans or pivots
    • B66D2700/0183Details, e.g. winch drums, cooling, bearings, mounting, base structures, cable guiding or attachment of the cable to the drum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)

Abstract

A device and method for detecting a disordered rope in multi-layer winding around a reel. The detecting device comprises a screw motor (18), a screw coupling (15), a screw (14), an optical axis (7), a screw nut (12), a linear bearing (4), and a detecting mechanism. The detecting mechanism comprises contact switches (5) and a contact switch support (6). The contact switch support (6) is installed between the linear bearing (4) and the screw nut (12). The contact switches (5) are connected to the contact switch support (6). A coder (22) is installed on a coder support (21). The coder support (21) is installed on a reel support (23). A signal wire of the coder (22) and a signal wire of a strip-shaped contact switch (5) are connected a PLC input end. When the phenomenon of rope disorder occurs, the strip-shaped contact switch (5) touches disordered ropes, and at this time, a triggering signal of the strip-shaped contact switch (5) is transmitted to a PLC, an alarm is given, and a machine is stopped, thereby avoiding an damage and a rope break caused by the disordered winding of steel wire ropes, and prolonging the service life of the steel wire ropes.

Description

1
Device and Method for Detecting Rope Disorder during Multi-Layer Rope Winding on Reel
Field of the Invention
The invention relates to a device and a method for monitoring rope winding on a winch, particularly to a device and a method for detecting rope disorder during multi-layer rope winding on a reel.
Background of the Invention
Usually, a steel wire rope wound on the reel of a hoisting machine is aligned randomly, often resulting in a "thread disorder" phenomenon in which the cable squeeze each other; consequently, the steel wire rope may be worn and the service life of the steel wire rope may be shortened severely, even a rope breaking phenomenon may occur, causing high hazards. To solve that problem, many rope alignment techniques have been developed, but these techniques still can't completely eliminate the "thread disorder" phenomenon of the rope. For example, though purely mechanical rope alignment devices are simple in structure, they often have a false action or no-action phenomenon that may result in a safety accident, owing to friction, abrasion and deformation; some rope alignment devices that employ electric control can't completely eliminate the "thread disorder" phenomenon; specifically, when a rope disorder phenomenon occurs, the electrical control system may control the rope alignment device to act further, possibly result in damage of the rope alignment device and adverse impact on the entire hoisting system.
Contents of the Invention
Object of the invention: The present invention provides a device and a method for detecting rope disorder during multi-layer rope winding on a reel, which solve the problem that the existing rope alignment devices may operate further when a rope disorder phenomenon occurs, and can give off an alarm and shut down the hoisting machine when a rope disorder phenomenon occurs.
To attain the object described above, the present invention employs the following technical scheme: A device for detecting rope disorder during multi-layer rope winding on a reel, comprising a lead screw motor, a lead screw coupling, a lead screw, a plain shaft, a lead screw nut, a linear bearing, and a detection mechanism, the detection mechanism comprises contact switches and contact switch supports, the contact switch supports are mounted between the linear bearing and the lead screw nut, and the contact switches are connected to the contact switch supports; a detection device support is mounted in front of the reel, bearing pedestals and a motor support are mounted on the detection device support, the lead screw motor is mounted on the motor support and connected to the lead screw via the lead screw coupling, the lead screw nut is mounted on the lead screw, plain shaft supports are mounted on the bearing pedestals, the plain shaft is locked on the plain shaft supports by locking bolts, the linear bearing is mounted on the plain shaft, an encoder is mounted on an encoder support, the encoder support is mounted on a reel support, the encoder is connected to the reel via a reel coupling, and the signal wire of the encoder and the signal wires of the strip-shaped contact switches are connected to the input end of a PLC.
The lead screw is a ball screw, and the lead screw nut is a ball screw nut. 2
The electric motor is a step motor or a servo motor.
The encoder is an incremental rotary encoder. A method for detecting rope disorder during multi-layer rope winding on a reel with the above-mentioned device, comprising the following steps: (1) when the hoisting motor rotates to drive the reel to wind up the rope or release the rope to drive the steel wire rope moving left or right on the reel, under the control of the lead screw motor, the detection mechanism will be driven by the lead screw to move left or right synchronously with the steel wire rope passing through it, wherein, the reverse of direction is determined by comparing the pulses entering into the PLC from the encoder with a preset value in the internal program of the PLC; (2) when a rope disorder phenomenon occurs, the steel wire rope is wound in one rope groove, but the detection device keeps moving left or right; then, a strip-shaped contact switch encounters the steel wire rope, and the contact switch acts to indicate a rope disorder has been detected; at that time, a signal triggered by the strip-shaped contact switch is transmitted into the PLC, and an internal program in the PLC gives off an alarm and shuts down the hoisting machine.
Beneficial effects: With the above-mentioned technical scheme, the encoder serves as a feedback stage in the closed loop system, the internal program in the PLC controller obtains the operating speed of the reel through computation, and thereby controls the operating speed of the detection device and attain the purpose of reversing the direction of the detection device automatically and synchronously with the steel wire rope by encoder counting. Since the movement of the detection device is controlled indirectly by means of encoder counting, the encoder will keep counting when the rope alignment system fails and results in a rope disorder; thus, the detection device will continue its operation, and a contact switch will contact with the steel wire rope, so that an alarm can be given off and the hoisting machine can be shut down timely and rapidly, and the adverse impacts and loss incurred by the rope disorder can be avoided.
Benefits: 1. Since the detection device is mounted in the axis direction of the reel, the detection device can move along the axis direction of the reel. 2. During normal operation, the PLC instructs and controls the lead screw motor to drive the lead screw, to ensure that the detection device will move by a rope pitch when the reel rotates for a turn and the encoder will count at the same time; when the steel wire rope moves to the left-most part or right-most part of the reel and begins to reverse its direction, the count value of the encoder will be compared with a preset value in the program of the PLC, and the reverse of direction of the lead screw motor will be controlled; thus, the reverse of direction of the detection device is kept synchronous with the steel wire rope. 3. During the operating process, if the movement speed and the reverse of direction of the detection device are not synchronous with the steel wire rope, they can be adjusted simply in the program, so that they are synchronous with the steel wire rope. 3 4. When a rope disorder phenomenon occurs, the steel wire rope is wound in one rope groove, and the detection device will keep moving left or right; thus, a strip-shaped contact switch will contact with the steel wire rope, and thereby an alarm will be given off, and the hoisting machine will be shut down via the PLC. 5. Since the detection device employs a linear bearing, a phenomenon of dust sticking and oil splashing incurred in the process of lubricating oil replenishment for a sliding joint can be avoided; in addition, since the friction force between the linear bearing and the plain shaft is very low, the detection device can operate smoothly. 6. With the above-mentioned structural features and performance advantages, the device provided in the present invention can be used on a reel in any diameter, with any type of rope, any diameter of rope to detect rope disorder in real time, so as to avoid adverse impacts of rope disorder on the service life of the steel wire rope and safety. 7. The method and device provided in the present invention can be widely used on different types of hoisting machines, and provides a technical support for detecting rope disorder and shutting down the hoisting machine and making adjustments timely.
Description of the Drawings
Fig. 1 is a 3D structural diagram of detecting rope disorder of a steel wire rope according to the present invention;
Fig. 2 is a side view of the device according to the present invention;
Fig. 3 is a 3D structural diagram of the detection mechanism according to the present invention;
Fig. 4 is a structural diagram of the control system according to the present invention.
In the figures: 1 - reel; 2 - bearing support; 3 - hoisting motor; 4 - linear bearing; 5 -strip-shaped contact switch; 6 - contact switch support; 7 - plain shaft; 8 - plain shaft support; 9 - bearing pedestal; 10 - detection device support; 11 - steel wire rope; 12 -lead screw nut; 13 - locking bolt; 14 - lead screw; 15 - lead screw coupling; 16 -bearing; 17 - motor support; 18 - lead screw motor; 19 - bearing; 20 - reel coupling; 21 - encoder support; 22 - encoder; 23 - reel support; 3-1 - linear bearing; 3-2 -strip-shaped contact switch; 3-3 - contact switch support; 3-4 - bolt; 3-5 - lead screw nut.
Detailed Description of the Embodiments
Hereunder the present invention will be further detailed, with reference to the accompanying drawings. A device for detecting rope disorder during multi-layer rope winding on a reel, comprising a lead screw motor 18, a lead screw coupling 15, a lead screw 14, a plain shaft 7, a lead screw nut 12, a linear bearing 4, and a detection mechanism, the detection mechanism comprises contact switches 5 and contact switch supports 6, the contact switch supports 6 are mounted between the linear bearing 4 and the lead screw nut 12, and the contact switches 5 are connected to the contact switch supports 6; a detection device support 10 is mounted in front of the reel 1, bearing pedestals 9 and a 4 motor support 17 are mounted on the detection device support 10, the lead screw motor 18 is mounted on the motor support 17 and connected to the lead screw 14 via the lead screw coupling 15, the lead screw nut 12 is mounted on the lead screw 14, plain shaft supports 8 are mounted on the bearing pedestals 9, the plain shaft 7 is locked on the plain shaft supports 8 by locking bolts 13, the linear bearing 4 is mounted on the plain shaft 7, an encoder 22 is mounted on an encoder support 21, the encoder support 21 is mounted on a reel support 23, the encoder 22 is connected to the reel 1 via a reel coupling 20, and the signal wire of the encoder 22 and the signal wires of the strip-shaped contact switches 5 are connected to the input end of a PLC.
Embodiment 1: As shown in Figs 1 and 2, a steel wire rope 11 is wound in multiple layers sequentially on a reel 1, the two ends of the reel 1 pass through bearings 19, the bearings 19 are tightly fitted on bearing supports 2, the bearing supports 2 are connected to a reel support 23 by bolts, an encoder 22 is connected to an encoder support 21 by bolts and connected to a shaft on one side of the reel 1 via a reel coupling 20, the encoder support 21 is connected to the reel support 23 by bolts, the plane formed by the axes of a plain shaft 7 and a lead screw 14 is parallel to the axis of the reel 1 and perpendicular to the mounting floor; a linear bearing 4 mounted on the plain shaft 7, a lead screw nut 12 mounted on the lead screw 14, strip-shaped contact switches 5, and contact switch supports 6 constitute a detection mechanism, which can be driven by the transmission of lead screw 14 to move left and right along the axis direction of the reel 1; the plain shaft 7 is locked on a plain shaft support 8 by locking bolts 13, the plain shaft support 8 is connected to the bearing pedestals 9 by bolts, the lead screw 14 is fixedly mounted on the bearing pedestals 9 and is connected to a lead screw motor 18 via a lead screw coupling 15, the lead screw motor 18 is connected to the motor support 17 by bolts, the motor support 17 is welded to the bearing pedestals 9, the bearing pedestals 9 are connected to a detection device support 10 by bolts, the strip-shaped contact switches 5 are mounted on the contact switch supports 6, the signal wires of the strip-shaped contact switches 5 and the signal wire of the encoder 22 are connected to a PLC, the PLC is connected to the lead screw motor 18 via a controller, and the PLC is connected to a reel motor 3 via a frequency converter.
The lead screw motor is a step motor or servo motor, the contact switches are strip-shaped contact switches, and the encoder is an incremental rotary encoder; the lead screw is a ball screw, and the lead screw nut is a ball screw nut; the plain shaft slide block is an linear bearing.
Fig. 3 is a 3D structural diagram of the detection mechanism, the symbol 3-1 represents a linear bearing, the symbol 3-2 represents a strip-shaped contact switch, the symbol 3-3 represents a contact switch support, the symbol 3-4 represents a bolt, and the symbol 3-5 represents a ball screw nut. The strip-shaped contact switch 3-2 is clip-mounted on the contact switch support 3-3 conveniently.
Fig. 4 is a structural diagram of the control system and the detection system.
The method for detecting rope disorder during steel wire rope winding comprises the following steps: (1) The reel motor 3 is controlled manually in a manual mode so that the entire assembly runs to its initial position; the lead screw motor 18 is adjusted manually, so that the steel wire rope 11 is located at a middle position in the detection device. 5 (2) During normal operation, the reel motor 3 drives the reel 1 to rotate, and the lead screw motor 18 operates at a speed that is obtained by the inner program in the PLC through calculation with the data fed back from the encoder, so that the detection device moves by a rope pitch whenever the reel 1 rotates by a turn; the encoder 22 counts in real time, and the count value is compared with a preset value in the PLC in real time; when the count value is equal to the preset value, the lead screw motor 18 will be controlled to reverse its rotation direction; when the hoisting machine is shut down, the count value will be latched in the encoder, so that the counting will resume after the next startup; thus, the detection device reciprocates left and right synchronously with the steel wire rope 11. (3) When a rope disorder phenomenon occurs, the steel wire rope 11 is wound in one rope groove, and the detection device will keep moving left or right normally; thus, a strip-shaped contact switch 5 will come into contact with the steel wire rope 11, and thereby the PLC will send a signal to control the reel motor 3 and the lead screw motor 18 to shut down, and give off an alarm.
While the present invention has been illustrated and described with reference to some preferred embodiments, the present invention is not limited to these. Those skilled in the art should recognize that various variations and modifications can be made without departing from the spirit and scope of the present invention. All of such variations and modifications shall be deemed as falling into the protected scope of the present invention.

Claims (5)

  1. Claims
    1. A device for detecting rope disorder during multi-layer rope winding on a reel, wherein, the detecting device comprising a lead screw motor, a lead screw coupling, a lead screw, a plain shaft, a lead screw nut, a linear bearing, and a detection mechanism, the detection mechanism comprises contact switches and contact switch supports, the contact switch supports are mounted between the linear bearing and the lead screw nut, and the contact switches are connected to the contact switch supports; a detection device support is mounted in front of the reel, bearing pedestals and a motor support are mounted on the detection device support, a lead screw motor is mounted on the motor support and connected to a lead screw via a lead screw coupling, the lead screw nut is mounted on the lead screw, plain shaft supports are mounted on the bearing pedestals, a plain shaft is locked on the plain shaft supports by locking bolts, the linear bearing is mounted on the plain shaft, an encoder is mounted on an encoder support, the encoder support is mounted on a reel support, the encoder is connected to the reel via a reel coupling, and the signal wire of the encoder and the signal wires of the strip-shaped contact switches are connected to the input end of a PLC.
  2. 2. The device for detecting rope disorder during multi-layer rope winding on a reel according to claim 1, wherein, the lead screw is a ball screw, and the lead screw nut is a ball screw nut.
  3. 3. The device for detecting rope disorder during multi-layer rope winding on a reel according to claim 1, wherein, the electric motor is a step motor or a servo motor.
  4. 4. The device for detecting rope disorder during multi-layer rope winding on a reel according to claim 1, wherein, the encoder is an incremental rotary encoder.
  5. 5. A method for detecting rope disorder during multi-layer rope winding on a reel with the device according to claim 1, comprising the following steps: (1) when the hoisting motor rotates to drive the reel to wind up the rope or release the rope to drive the steel wire rope moving left or right on the reel, under the control of the lead screw motor, the detection mechanism will be driven by the lead screw to move left or right synchronously with the steel wire rope passing through it, wherein, the reverse of direction is determined by comparing the pulses entering into the PLC from the encoder with a preset value in the internal program of the PLC; (2) when a rope disorder phenomenon occurs, the steel wire rope is wound in one rope groove, but the detection device keeps moving left or right; then, a strip-shaped contact switch encounters the steel wire rope, and the contact switch acts to indicate a rope disorder has been detected; at that time, a signal triggered by the strip-shaped contact switch is transmitted into the PLC, and an internal program in the PLC gives off an alarm and shuts down the hoisting machine.
AU2015372215A 2014-12-25 2015-05-13 Device and method for detecting disordered rope in multi-layer winding around reel Abandoned AU2015372215A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201410828337.1A CN104528569A (en) 2014-12-25 2014-12-25 Detection device and method used for rope disorder in process of multi-layer winding around reel
CN201410828337.1 2014-12-25
PCT/CN2015/078845 WO2016101499A1 (en) 2014-12-25 2015-05-13 Device and method for detecting disordered rope in multi-layer winding around reel

Publications (1)

Publication Number Publication Date
AU2015372215A1 true AU2015372215A1 (en) 2017-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
AU2015372215A Abandoned AU2015372215A1 (en) 2014-12-25 2015-05-13 Device and method for detecting disordered rope in multi-layer winding around reel

Country Status (5)

Country Link
CN (1) CN104528569A (en)
AU (1) AU2015372215A1 (en)
CA (1) CA2942688C (en)
DE (1) DE112015000333B4 (en)
WO (1) WO2016101499A1 (en)

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CN104528569A (en) * 2014-12-25 2015-04-22 中国矿业大学 Detection device and method used for rope disorder in process of multi-layer winding around reel
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CN112916631B (en) * 2021-01-21 2023-03-07 江苏鑫旺新材料科技有限公司 Winding cylinder with adjustable structure for metal wire drawing machine
CN113460905B (en) * 2021-06-03 2022-10-14 安徽绿洲危险废物综合利用有限公司 Automatic copper plate hanging device for etching solution copper recovery system
CN113636411A (en) * 2021-07-23 2021-11-12 江苏省送变电有限公司 Automatic recovery unit that opens up of long distance traction guide rope
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Also Published As

Publication number Publication date
DE112015000333B4 (en) 2021-01-14
CA2942688A1 (en) 2016-06-30
CA2942688C (en) 2019-07-02
DE112015000333T5 (en) 2016-09-22
WO2016101499A1 (en) 2016-06-30
CN104528569A (en) 2015-04-22

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