AU2015383063B2 - Apparatus and method for detecting interlayer friction of steel wire rope of winding-type hoist - Google Patents

Apparatus and method for detecting interlayer friction of steel wire rope of winding-type hoist Download PDF

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AU2015383063B2
AU2015383063B2 AU2015383063A AU2015383063A AU2015383063B2 AU 2015383063 B2 AU2015383063 B2 AU 2015383063B2 AU 2015383063 A AU2015383063 A AU 2015383063A AU 2015383063 A AU2015383063 A AU 2015383063A AU 2015383063 B2 AU2015383063 B2 AU 2015383063B2
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steel wire
wire rope
connector
loading
type
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AU2015383063A1 (en
Inventor
Guohua Cao
Guoan Chen
Tongqing LI
Wei Li
Songyong LIU
Hao LU
Yuxing PENG
Gang Shen
Shisheng SUN
Dagang WANG
Gongbo Zhou
Zhencai Zhu
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Priority to CN201510102983.4A priority Critical patent/CN104634686B/en
Priority to CN201510102983.4 priority
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to PCT/CN2015/099143 priority patent/WO2016141760A1/en
Publication of AU2015383063A1 publication Critical patent/AU2015383063A1/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/56Investigating resistance to wear or abrasion
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N19/00Investigating materials by mechanical methods
    • G01N19/02Measuring coefficient of friction between materials

Abstract

Disclosed are an apparatus and method for detecting an interlayer friction of a steel wire rope of a winding-type hoist. The apparatus comprises a support, a loading steel wire rope positioning system, a connector-free steel wire rope positioning system, a brake 5 system, a power loading system and a state monitoring system, the loading steel wire rope positioning system, the connector-free steel wire rope positioning system, the brake system, the power loading system and the state monitoring system being disposed on the support. A friction wear experiment between a loading steel wire rope and a connector-free steel wire rope on a rotational hub can be implemented, and the apparatus is configured to reveal a 10 steel wire rope friction wear fracture mechanism and evaluate the wear damage evolution of each steel wire rope and the fatigue life of each steel wire rope. An interlayer friction situation of a steel wire rope on a winding-type hoist roller can be simulated, a stable steel wire rope contact load can be continuously applied by adopting a fixed pulley positioning apparatus and an electric pull rod loading mode controlled by computer software, a friction 15 force, a temperature field and a friction coefficient between steel wire ropes and an expanding law of internal cracks of the steel wire ropes can be monitored in real time, and an effective experimental device is provided for revealing a steel wire rope friction wear fracture mechanism, evaluating the friction damage evolution of each steel wire rope and evaluating the fatigue life of each steel wire rope.

Description

APPARATUS AND METHOD FOR DETECTING INTERLAYER FRICTION OF STEEL WIRE ROPE OF WINDING-TYPE HOIST
BACKGROUND
Technical Field
The present invention relates to an apparatus and method for detecting an interlayer friction of a steel wire rope of a winding-type hoist, is particularly applicable to an experiment for simulating a usage environment and working situation of a steel wire rope on a winding-type hoist roller in a mine hoisting process, and is used to detect an interlayer friction situation of the steel wire rope on the winding-type hoist roller.
Related Art
As the national economy is rapidly developing, national demands for mineral resources greatly increase, which promotes mining of national underground mineral resources to be continuously deepened. As the mining depth of mines increases, the problems of deep mining and transportation are more concerned. The average national mining depth of mines approximates to 500m. As shallow mineral resources are consumed, the future mining depth will inevitably reach 1000 to 2000m. At present, a single-rope winding-type hoist (having a single drum or double drums) and a multi-rope friction-type hoist are adopted for national deep hoisting. It is generally not recommended to use a national multi-rope friction-type hoist while the depth exceeds 1200m. Otherwise, the service life of a steel wire rope will be affected by an over-large tension change of the steel wire rope. A hoisting steel wire rope, serving as a key transmission component of a winding-type hoisting system, connects a hoist to a hoisting container. The reliability of the hoisting steel wire rope severely affects the safety production of a coal mine and the life safety of staff. Once the hoisting steel wire rope is fractured by failure, a major disastrous safety accident will be caused.
In a vertical shaft hosing cycle (terminal loading, hoisting and unloading), when the hoisting steel wire rope is cyclically wound in and out of a roller and multiple layers of steel wire ropes are wound around the roller particularly, cyclically winding the hoisting 1 steel wire rope in and out of the roller causes cyclic friction wear between the wound-in and wound-out steel wire rope and the lower-layer wound steel wire rope. As the hoisting height, the hoisting load and the hoisting speed increase, a friction wear function more and more affects the life of the hoisting steel wire rope. Consequently, the characteristic of an inter-rope coupling motion of a steel wire rope in a large-tension multi-layer high-speed winding process is revealed, and exploring a friction contact behavior in an inter-rope combination and separation motion is of great significance to prolonging the service life of a hoisting steel wire rope of a kilometer deep shaft, ensuring the safety production of a deep mine, avoiding casualties and device damages, and guaranteeing national energy supply.
So, an apparatus and method for detecting an interlayer friction of a steel wire rope of a winding-type hoist are provided for dynamically monitoring a friction force, a temperature field and a friction coefficient between steel wire ropes in a steel wire rope friction wear process and expansion of internal cracks of the steel wire rope in real time, revealing a steel wire rope friction wear fracture mechanism, and evaluating the wear damage evolution of the steel wire rope and the fatigue life of the steel wire rope.
SUMMARY
The present invention provides, in order to solve the problem that an existing apparatus cannot detect inter-rope friction wear in a multi-layer high-speed winding process of a steel wire rope roller of a winding-type hoist, an apparatus and method capable of simulating an interlayer friction situation of a steel wire rope on a winding-type hoist roller and dynamically monitoring a friction wear situation of the steel wire rope in real time.
The present invention adopts the technical solution as follows.
The present invention provides an apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist. The apparatus comprises a support, a loading steel wire rope positioning system, a connector-free steel wire rope positioning system, a brake system, a power loading system and a state monitoring system, the loading steel wire rope positioning system, the connector-free steel wire rope positioning system, the brake system, the power loading system and the state monitoring system being disposed on the support. 2
The support comprises a base (17) and four upright columns (14) fixed to the base (17), the four upright columns (14) enclosing a rectangle, a beam (25) being disposed at the top of a part between two longitudinal upright columns vertical to an axis direction of a transmission shaft (28), a fixed pulley supporting beam (11) being disposed in the middle of a part between two horizontal upright columns parallel to the axis direction of the transmission shaft (28).
The loading steel wire rope positioning system comprises a fixed pulley supporting seat disposed on the fixed pulley supporting beam (11), and two fixed pulleys (13) symmetric about a vertical plane where the axis of the transmission shaft (28) is located, the two fixed pulleys (13) being connected to the fixed pulley supporting seat via a pin shaft (10), a loading steel wire rope being located at a gap position between two connector-free steel wire ropes (27) tensioned on a hub (01) via grooves in the circumferences of the two fixed pulleys (13).
The connector-free steel wire rope positioning system comprises the hub (01), two parallel circular arc-shaped grooves provided on the circumference of the hub (01), a first flange-type top cover (33), a second flange-type top cover (30), a T-shaped bolt (29) and the connector-free steel wire ropes (27), circumferential outer edges of two sides of the hub (01) being set as inclined surfaces, inner sides of the first flange-type top cover (33) and the second flange-type top cover (30) being provided with inclined surface structures matching the inclined surfaces.
The brake system comprises a brake disk (09) disposed at a middle position of a third coupling (06), and a pneumatic drive brake (07) disposed on the brake disk (09), the hub (01) being braked by means of a brake force exerted on the brake disk (09) by the pneumatic drive brake (07).
The power loading system comprises a rotation drive system and a loading system. The rotation drive system comprises a motor (08) disposed on the base (17), the third coupling (06) connected to an output shaft of the motor (08), a speed reducer (05) connected to the third coupling (06), a second coupling (04) connected to an output shaft of the speed reducer (05), a dynamic torque rotation speed sensor (03) connected to the second coupling 3 (04), a first coupling (02) connected to the dynamic torque rotation speed sensor (03), the transmission shaft (28) connected to the first coupling (02), and the hub (01) in key connection with the transmission shaft (28), the rotation of the motor (08) driving the rotation of the hub (01). The loading system comprises a pull ring (16) connected to the base (17), a tensioner (15) connected to the pull ring (16), a loading steel wire rope (12) connected to the tensioner (15), a rope hook (21) connected to the other end of the loading steel wire rope (12), a tension sensor (20) connected to the rope hook (21), an electric pull rod (19) connected to the tension sensor (20), and a foundation bolt (18) connected to the electric pull rod (19), wherein the foundation bolt (18) is connected to the base (17), and a pull force exerted by the electric pull rod (19) acts on the loading steel wire rope (12), such that the loading steel wire rope (12) generates pressure loads on the two connector-free steel wire ropes (27) on the hub (01).
The state monitoring system comprises: the dynamic torque rotation speed sensor (03), which is disposed on the rotation drive system and configured to dynamically monitor a dynamic alternating load torque and rotation speed of the hub (01); the tension sensor (20), which is disposed on the loading system and configured to dynamically monitor a load exerted on the loading steel wire rope (12) by the electric pull rod (19); a thermal infrared imager (24), which is disposed at the upper right part of the loading steel wire rope (12) and configured to dynamically detect a temperature change law of a friction contact side face in a friction wear process of the loading steel wire rope (12) and the connector-free steel wire ropes (27); and an acoustic emission sensor (26), which is disposed above the loading steel wire rope (12) and configured to monitor an expanding law of internal cracks of the loading steel wire rope (12) in a steel wire rope friction process.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, circular arc-shaped rubber washers (31) are disposed in the circular arc-shaped grooves, thereby increasing an adhesive force between the two connector-free steel wire ropes (27) and the hub (01) and preventing the connector-free steel wire ropes (27) from being damaged by an acting force of the hub. Parts, in contact with the two connector-free steel wire ropes (27), on the inner sides of the first flange-type top cover 4 (33) and the second flange-type top cover (30) are provided with L-shaped rubber washers (32), which prevent the connector-free steel wire ropes (27) from being damaged by the first flange-type top cover (33) and the second flange-type top cover (30) in a tensioning process.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, an interlayer friction situation of a steel wire rope on a winding-type hoist roller is simulated by a contact friction between the loading steel wire rope (12) and the connector-free steel wire ropes (27) symmetrically disposed on the rotational hub (01).
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, counter bores are provided in the upper flange circumferential direction of the second flange-type top cover (30) at the same angle intervals, and through holes are provided in the upper flange circumferential direction of the first flange-type top cover (33) at the same angle intervals, thereby making it convenient to fasten by the T-shaped bolt (29).
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, a load of the loading steel wire rope (12) is applied by the electric pull rod (19), and the friction wear performance between the steel wire ropes under different loads can be tested by changing the load.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, contact wrap angles of the loading steel wire rope (12) and the connector-free steel wire ropes (27) can be changed by replacing the fixed pulleys (13) with different diameters, and the friction wear performance between the steel wire ropes under different contact wrap angle states can be tested by changing the contact wrap angles of the steel wire ropes.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, a law of influence on a friction between steel wire ropes caused by different steel wire rope structures is tested by the loading steel wire rope (12) and the connector-free steel wire ropes (27) with different structures. 5
The present invention also provides a method for detecting an interlayer friction of a steel wire rope using the above apparatus. A first flange-type top cover (33) and a second flange-type top cover (30) cooperate with a hub (01) via inclined surfaces, a T-shaped bolt (29) passes through bolt holes in the first flange-type top cover (33) and the second flange-type top cover (30), a nut is screwed, and under the action of a fastening force of the T-shaped bolt (29), and the first flange-type top cover (33) and the second flange-type top cover (30) continuously extrude two connector-free steel wire ropes (27), such that the two connector-free steel wire ropes (27) enter two parallel circular arc-shaped grooves in the hub (01) along inclined surfaces on the hub (01), the two connector-free steel wire ropes (27) are tensioned under the action of an own radial elastic force and fixed into the circular arc-shaped grooves in the hub (01), a gap is reserved between the two connector-free steel wire ropes (27), and after the connector-free steel wire ropes (27) are tensioned in the circular arc-shaped grooves in the hub (01), the first flange-type top cover (33) and the second flange-type top cover (30) are disassembled. A motor (08) drives the hub (01) to rotate so as to drive the connector-free steel wire ropes (27) to rotate, and frictional wear is generated between a loading steel wire rope (12) and the two connector-free steel wire ropes (27) under a load applied by an electric pull rod (19). A contact friction force between the loading steel wire rope (12) and the connector-free steel wire ropes (27) symmetrically disposed on the rotational hub (01) is calculated by means of a torque variation measured by a dynamic torque rotation speed sensor (03). A temperature change law of a steel wire rope friction contact side face in an experiment process is monitored by aligning a thermal infrared imager (24) with a contact position between the loading steel wire rope (12) and the connector-free steel wire ropes (27) symmetrically disposed on the rotational hub (01).
An expanding law of internal cracks of the loading steel wire rope (12) in a steel wire rope friction process is monitored by an acoustic emission sensor (26) above the loading steel wire rope (12). 6
The hub (01) is braked by means of a brake force exerted on a brake disk (09) by a pneumatic drive brake (07), and the friction wear performance between the loading steel wire rope (12) and the two connector-free steel wire ropes (27) in a brake process is tested.
Contact wrap angles of the loading steel wire rope (12) and the connector-free steel wire ropes (27) are changed by replacing fixed pulleys (13) with different diameters, and the influence on the friction wear performance between the steel wire ropes caused by different contact wrap angles is tested.
The influence on the friction wear performance between the steel wire ropes caused by different steel wire rope structures is tested by replacing the loading steel wire rope (12) and the two connector-free steel wire ropes (27) with different structures.
The present invention continuously provides a method for tensioning and fixing a connector-free steel wire rope, which is applied to any one of the above apparatuses. A first flange-type top cover (33) and a second flange-type top cover (30) cooperate with a hub (01) via inclined surfaces, a T-shaped bolt (29) passes through bolt holes in the first flange-type top cover (33) and the second flange-type top cover (30), a nut is screwed, and under the action of a fastening force of the T-shaped bolt (29), and the first flange-type top cover (33) and the second flange-type top cover (30) continuously extrude two connector-free steel wire ropes (27), such that the two connector-free steel wire ropes (27) enter two parallel circular arc-shaped grooves in the hub (01) along inclined surfaces on the hub (01), and the two connector-free steel wire ropes (27) are tensioned under the action of an own radial elastic force and fixed into the circular arc-shaped grooves in the hub (01).
The beneficial effects are as follows. Due to the adoption of the technical solution, the present invention can implement a friction wear experiment between a loading steel wire rope and a connector-free steel wire rope on a rotational hub, and is applied to revealing a steel wire rope friction wear fracture mechanism and evaluating the wear damage evolutions of the steel wire ropes and the fatigue lives of the steel wire ropes. An interlayer friction situation of a steel wire rope on a winding-type hoist roller can be simulated, a stable steel wire rope contact load can be continuously applied by adopting a fixed pulley positioning apparatus and an electric pull rod loading mode controlled by computer 7 software, a friction force, a temperature field and a friction coefficient between steel wire ropes and an expanding law of internal cracks of the steel wire ropes can be monitored in real time, and an effective experimental device is provided for revealing a steel wire rope friction wear fracture mechanism, evaluating the friction damage evolution of each steel wire rope and evaluating the fatigue life of each steel wire rope. The experimental device is simple and convenient to operate, good in effect and wide in practicality in the present technical field.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a top-view structural diagram;
Fig. 2 is a left-view structural diagram;
Fig. 3 is a structural diagram of an A-A direction hub in Fig. 2;
Fig. 4 is a structural front view of a connector-free steel wire rope positioning system;
Fig. 5 is a B-B direction view of Fig. 4 in a connector-free steel wire rope tensioning process; and
Fig. 6 is a B-B direction view of Fig. 4 after a connector-free steel wire rope is tensioned.
In the drawings: 01, Hub; 02, first coupling; 03, dynamic torque rotation speed sensor; 04, second coupling; 05, speed reducer; 06, third coupling; 07, pneumatic drive brake; 08, motor; 09, brake disk; 10, pin shaft; 11, supporting beam; 12, steel wire rope; 13, fixed pulley; 14, upright column; 15, tensioner; 16, pull ring; 17, base; 18, foundation bolt; 19, electric pull rod; 20, tension sensor; 21, rope hook; 22, bearing seat; 23, nut; 24, thermal infrared imager; 25, beam; 26, acoustic emission sensor; 27, connector-free steel wire rope; 28, transmission shaft; 29, T-shaped bolt; 30, second flange-type top cover; 31, circular arc-shaped rubber washer; 32, L-shaped rubber washer; and 33, first flange-type top cover.
DETAILED DESCRIPTION
One embodiment of the present invention will be further described below with reference to the drawings. 8
As shown in Fig. 1 to 6, an apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist comprises a support, a loading steel wire rope positioning system, a connector-free steel wire rope positioning system, a brake system, a power loading system and a state monitoring system, the loading steel wire rope positioning system, the connector-free steel wire rope positioning system, the brake system, the power loading system and the state monitoring system being disposed on the support.
The support comprises a base 17 and four upright columns 14 fixed to the base 17, the four upright columns 14 enclose a rectangle, a beam 25 is disposed at the top of a part between two longitudinal upright columns vertical to an axis direction of a transmission shaft 28, and a fixed pulley supporting beam 11 is disposed in the middle of a part between two horizontal upright columns parallel to the axis direction of the transmission shaft 28.
The loading steel wire rope positioning system comprises a fixed pulley supporting seat disposed on the fixed pulley supporting beam 11, and two fixed pulleys 13 symmetric about a vertical plane where the axis of the transmission shaft 28 is located, the two fixed pulleys 13 being connected to the fixed pulley supporting seat via a pin shaft 10, and a loading steel wire rope is located at a gap position between two connector-free steel wire ropes 27 tensioned on a hub 01 via grooves in the circumferences of the two fixed pulleys 13.
The connector-free steel wire rope positioning system comprises the hub 01, two parallel circular arc-shaped grooves provided on the circumference of the hub 01, a first flange-type top cover 33, a second flange-type top cover 30, a T-shaped bolt 29 and the connector-free steel wire ropes 27, circumferential outer edges of two sides of the hub 01 are set as inclined surfaces, inner sides of the first flange-type top cover 33 and the second flange-type top cover 30 are provided with inclined surface structures matching the inclined surfaces, the first flange-type top cover 33 and the second flange-type top cover 30 cooperate with the hub 01 via the inclined surfaces; a T-shaped bolt 29 passes through bolt holes in the first flange-type top cover 33 and the second flange-type top cover 30, a nut is screwed, and under the action of a fastening force of the T-shaped bolt 29, and the first flange-type top cover 33 and the second flange-type top cover 30 continuously extrude two 9 connector-free steel wire ropes 27, such that the two connector-free steel wire ropes 27 enter two parallel circular arc-shaped grooves in the hub 01 along inclined surfaces on the hub 01, the two connector-free steel wire ropes 27 are tensioned under the action of an own radial elastic force and fixed into the circular arc-shaped grooves in the hub 01, and a gap is reserved between the two connector-free steel wire ropes 27. After the connector-free steel wire ropes 27 are tensioned in the circular arc-shaped grooves in the hub 01, the first flange-type top cover 33 and the second flange-type top cover 30 can be disassembled by disassembling the nut 23 and the T-shaped bolt 29.
Circular arc-shaped rubber washers 31 are disposed in the circular arc-shaped grooves, thereby increasing an adhesive force between the two connector-free steel wire ropes 27 and the hub 01 and preventing the connector-free steel wire ropes 27 from being damaged by an acting force of the hub. Parts, in contact with the two connector-free steel wire ropes 27, on the inner sides of the first flange-type top cover 33 and the second flange-type top cover 30 are provided with L-shaped rubber washers 32, which prevent the connector-free steel wire ropes 27 from being damaged by the first flange-type top cover 33 and the second flange-type top cover 30 in a tensioning process.
The brake system comprises a brake disk 09 disposed at a middle position of a third coupling 06, and a pneumatic drive brake 07 disposed on the brake disk 09, and the hub 01 is braked by means of a brake force exerted on the brake disk 09 by the pneumatic drive brake 07.
The power loading system comprises a rotation drive system and a loading system. The rotation drive system comprises a motor 08 disposed on the base 17, the third coupling 06 connected to an output shaft of the motor 08, a speed reducer 05 connected to the third coupling 06, a second coupling 04 connected to an output shaft of the speed reducer 05, a dynamic torque rotation speed sensor 03 connected to the second coupling 04, a first coupling 02 connected to the dynamic torque rotation speed sensor 03, the transmission shaft 28 connected to the first coupling 02, and the hub 01 in key connection with the transmission shaft 28, the rotation of the motor 08 driving the rotation of the hub 01.
The loading system comprises a pull ring 16 connected to the base 17, a tensioner 15 10 connected to the pull ring 16, a loading steel wire rope 12 connected to the tensioner 15, a rope hook 21 connected to the other end of the loading steel wire rope 12, a tension sensor 20 connected to the rope hook 21, an electric pull rod 19 connected to the tension sensor 20, and a foundation bolt 18 connected to the electric pull rod 19, wherein the foundation bolt 18 is connected to the base 17, and a pull force exerted by the electric pull rod 19 acts on the loading steel wire rope 12, such that the loading steel wire rope 12 generates pressure loads on the two connector-free steel wire ropes 27 on the hub 01.
The state monitoring system comprises: the dynamic torque rotation speed sensor 03, which is disposed on the rotation drive system and configured to dynamically monitor a dynamic alternating load torque and rotation speed of the hub 01; the tension sensor 20, which is disposed on the loading system and configured to dynamically monitor a load exerted on the loading steel wire rope 12 by the electric pull rod 19; a thermal infrared imager 24, which is disposed at the upper right part of the loading steel wire rope 12 and configured to dynamically detect a temperature change law of a friction contact side face in a friction wear process of the loading steel wire rope 12 and the connector-free steel wire ropes 27; and an acoustic emission sensor 26, which is disposed above the loading steel wire rope 12 and configured to monitor an expanding law of internal cracks of the loading steel wire rope 12 in a steel wire rope friction process.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, an interlayer friction situation of a steel wire rope on a winding-type hoist roller is simulated by a contact friction between the loading steel wire rope 12 and the connector-free steel wire ropes 27 symmetrically disposed on the rotational hub 01.
Counter bores are provided in the upper flange circumferential direction of the second flange-type top cover 30 at the same angle intervals, and through holes are provided in the upper flange circumferential direction of the first flange-type top cover 33 at the same angle intervals, thereby making it convenient to fasten by the T-shaped bolt 29.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, a load of the loading steel wire rope 12 is applied by the electric pull rod 19. The friction wear performance between the steel wire ropes under different loads 11 can be tested by changing the load.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, contact wrap angles of the loading steel wire rope 12 and the connector-free steel wire ropes 27 can be changed by replacing the fixed pulleys 13 with different diameters, and the friction wear performance between the steel wire ropes under different contact wrap angle states can be tested by changing the contact wrap angles of the steel wire ropes.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, a contact friction force between the loading steel wire rope 12 and the connector-free steel wire ropes 27 symmetrically disposed on the rotational hub 01 is calculated by means of a torque variation measured by a dynamic torque rotation speed sensor 03.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, a temperature change law of a steel wire rope friction contact side face in an experiment process is monitored by aligning a thermal infrared imager 24 with a contact position between the loading steel wire rope 12 and the connector-free steel wire ropes 27 symmetrically disposed on the rotational hub 01.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, an acoustic emission sensor 26 disposed above the loading steel wire rope 12 is configured to monitor an expanding law of internal cracks of the loading steel wire rope 12 in a steel wire rope friction process.
In the apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, a law of influence on a friction between steel wire ropes caused by different steel wire rope structures is tested by the loading steel wire rope 12 and the connector-free steel wire ropes 27 with different structures. A detection method comprises: connector-free steel wire ropes 27 pass through a first flange-type top cover 33 and a second flange-type top cover 30, under the action of a fastening force of a T-shaped bolt 29, the two connector-free steel wire ropes 27 enter 12 circular arc-shaped grooves symmetrically provided in a hub 01 along symmetric inclined surfaces, having a certain taper, on the hub 01, the two connector-free steel wire ropes 27 are tensioned under the action of an own radial elastic force and fixed into the circular arc-shaped grooves in the hub 01, and a gap is reserved between the two connector-free steel wire ropes 27. After the connector-free steel wire ropes 27 are tensioned in the circular arc-shaped grooves in the hub 01, the first flange-type top cover 33 and the second flange-type top cover 30 are disassembled. A motor 08 drives the hub 01 to rotate so as to drive the connector-free steel wire ropes 27 to rotate, and frictional wear is generated between a loading steel wire rope 12 and the two connector-free steel wire ropes 27 under a load applied by an electric pull rod 19. A contact friction force between the loading steel wire rope 12 and the connector-free steel wire ropes 27 symmetrically disposed on the rotational hub 01 is calculated by means of a torque variation measured by a dynamic torque rotation speed sensor 03. A temperature change law of a steel wire rope friction contact side face in an experiment process is monitored by aligning a thermal infrared imager 24 with a contact position between the loading steel wire rope 12 and the connector-free steel wire ropes 27 symmetrically disposed on the rotational hub 01.
An expanding law of internal cracks of the loading steel wire rope 12 in a steel wire rope friction process is monitored by an acoustic emission sensor 26 above the loading steel wire rope 12.
The hub 01 is braked by means of a brake force exerted on a brake disk 09 by a pneumatic drive brake 07, and the friction wear performance between the loading steel wire rope 12 and the two connector-free steel wire ropes 27 in a brake process is tested.
Contact wrap angles of the loading steel wire rope 12 and the connector-free steel wire ropes 27 are changed by replacing fixed pulleys 13 with different diameters, and the influence on the friction wear performance between the steel wire ropes caused by different contact wrap angles is tested.
The influence on the friction wear performance between the steel wire ropes caused by 13 different steel wire rope structures is tested by replacing the loading steel wire rope 12 and the two connector-free steel wire ropes 27 with different structures.
The above is only preferred implementations of the present invention. It shall be noted that those skilled in the art can also make some improvements and modifications without 5 departing from the principle of the present invention. These improvements and modifications shall fall within the protective scope of the present invention. 14

Claims (9)

  1. CLAIMS What is claimed is:
    1. An apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist, comprising a support, a loading steel wire rope positioning system, a connector-free steel wire rope positioning system, a brake system, a power loading system and a state monitoring system, the loading steel wire rope positioning system, the connector-free steel wire rope positioning system, the brake system, the power loading system and the state monitoring system being disposed on the support, wherein the support comprises a base (17) and four upright columns (14) fixed to the base (17), the four upright columns (14) enclose a rectangle, a beam (25) is disposed at the top of a part between two longitudinal upright columns vertical to an axis direction of a transmission shaft (28), and a fixed pulley supporting beam (11) is disposed in the middle of a part between two horizontal upright columns parallel to the axis direction of the transmission shaft (28); the loading steel wire rope positioning system comprises a fixed pulley supporting seat disposed on the fixed pulley supporting beam (11), and two fixed pulleys (13) symmetric about a vertical plane where the axis of the transmission shaft (28) is located, the two fixed pulleys (13) are connected to the fixed pulley supporting seat via a pin shaft (10), and a loading steel wire rope is located at a gap position between two connector-free steel wire ropes (27) tensioned on a hub (01) via grooves in the circumferences of the two fixed pulleys (13); the connector-free steel wire rope positioning system comprises the hub (01), two parallel circular arc-shaped grooves provided on the circumference of the hub (01), a first flange-type top cover (33), a second flange-type top cover (30), a T-shaped bolt (29) and the connector-free steel wire ropes (27), circumferential outer edges of two sides of the hub (01) are set as inclined surfaces, and inner sides of the first flange-type top cover (33) and the second flange-type top cover (30) are provided with inclined surface structures matching the inclined surfaces; the brake system comprises a brake disk (09) disposed at a middle position of a third coupling (06), and a pneumatic drive brake (07) disposed on the brake disk (09), and the hub (01) is braked by a brake force exerted on the brake disk (09) by the pneumatic drive brake (07); the power loading system comprises a rotation drive system and a loading system, the rotation drive system comprises a motor (08) disposed on the base (17), the third coupling (06) connected to an output shaft of the motor (08), a speed reducer (05) connected to the third coupling (06), a second coupling (04) connected to an output shaft of the speed reducer (05), a dynamic torque rotation speed sensor (03) connected to the second coupling (04), a first coupling (02) connected to the dynamic torque rotation speed sensor (03), the transmission shaft (28) connected to the first coupling (02), and the hub (01) in key connection with the transmission shaft (28), the rotation of the motor (08) drives the rotation of the hub (01), the loading system comprises a pull ring (16) connected to the base (17), a tensioner (15) connected to the pull ring (16), a loading steel wire rope (12) connected to the tensioner (15), a rope hook (21) connected to the other end of the loading steel wire rope (12), a tension sensor (20) connected to the rope hook (21), an electric pull rod (19) connected to the tension sensor (20), and a foundation bolt (18) connected to the electric pull rod (19), the foundation bolt (18) is connected to the base (17), and a pull force exerted by the electric pull rod (19) acts on the loading steel wire rope (12), such that the loading steel wire rope (12) generates pressure loads on the two connector-free steel wire ropes (27) on the hub (01); and the state monitoring system comprises the dynamic torque rotation speed sensor (03) which is disposed on the rotation drive system and configured to dynamically monitor a dynamic alternating load torque and rotation speed of the hub (01), the tension sensor (20) which is disposed on the loading system and configured to dynamically monitor a load exerted on the loading steel wire rope (12) by the electric pull rod (19), a thermal infrared imager (24) which is disposed at the upper right part of the loading steel wire rope (12) and configured to dynamically detect a temperature change law of a friction contact side face in a friction wear process of the loading steel wire rope (12) and the connector-free steel wire ropes (27), and an acoustic emission sensor (26) which is disposed above the loading steel wire rope (12) and configured to monitor an expanding law of internal cracks of the loading steel wire rope (12) in a steel wire rope friction process.
  2. 2. The apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist according to claim 1, characterized in that circular arc-shaped rubber washers (31) are disposed in the circular arc-shaped grooves, thereby increasing an adhesive force between the two connector-free steel wire ropes (27) and the hub (01) and preventing the connector-free steel wire ropes (27) from being damaged by an acting force of the hub; and parts, in contact with the two connector-free steel wire ropes (27), on the inner sides of the first flange-type top cover (33) and the second flange-type top cover (30) are provided with L-shaped rubber washers (32), which prevent the connector-free steel wire ropes (27) from being damaged by the first flange-type top cover (33) and the second flange-type top cover (30) in a tensioning process.
  3. 3. The apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist according to claim 1, characterized in that an interlayer friction situation of a steel wire rope on a winding-type hoist roller is simulated by a contact friction between the loading steel wire rope (12) and the connector-free steel wire ropes (27) symmetrically disposed on the rotational hub (01).
  4. 4. The apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist according to claim 1, characterized in that counter bores are provided in the upper flange circumferential direction of the second flange-type top cover (30) at the same angle intervals, and through holes are provided in the upper flange circumferential direction of the first flange-type top cover (33) at the same angle intervals, thereby making it convenient to fasten by the T-shaped bolt (29).
  5. 5. The apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist according to claim 1, characterized in that a load of the loading steel wire rope (12) is applied by the electric pull rod (19), and the friction wear performance between the steel wire ropes under different loads can be tested by changing the load.
  6. 6. The apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist according to claim 1, characterized in that contact wrap angles of the loading steel wire rope (12) and the connector-free steel wire ropes (27) can be changed by replacing the fixed pulleys (13) with different diameters, and the friction wear performance between the steel wire ropes under different contact wrap angle states can be tested by changing the contact wrap angles of the steel wire ropes.
  7. 7. The apparatus for detecting an interlayer friction of a steel wire rope of a winding-type hoist according to claim 1, characterized in that a law of influence on a friction between steel wire ropes caused by different steel wire rope structures is tested by the loading steel wire rope (12) and the connector-free steel wire ropes (27) with different structures.
  8. 8. A method for detecting an interlayer friction of a steel wire rope using the apparatus according to any one of claims 1 to 7, characterized in that a first flange-type top cover (33) and a second flange-type top cover (30) cooperate with a hub (01) via inclined surfaces, a T-shaped bolt (29) passes through bolt holes in the first flange-type top cover (33) and the second flange-type top cover (30), a nut is screwed, and under the action of a fastening force of the T-shaped bolt (29), and the first flange-type top cover (33) and the second flange-type top cover (30) continuously extrude two connector-free steel wire ropes (27), such that the two connector-free steel wire ropes (27) enter two parallel circular arc-shaped grooves in the hub (01) along inclined surfaces on the hub (01), the two connector-free steel wire ropes (27) are tensioned under the action of an own radial elastic force and fixed into the circular arc-shaped grooves in the hub (01), a gap is reserved between the two connector-free steel wire ropes (27), and after the connector-free steel wire ropes (27) are tensioned in the circular arc-shaped grooves in the hub (01), the first flange-type top cover (33) and the second flange-type top cover (30) are disassembled; a motor (08) drives the hub (01) to rotate so as to drive the connector-free steel wire ropes (27) to rotate, and frictional wear is generated between a loading steel wire rope (12) and the two connector-free steel wire ropes (27) under a load applied by an electric pull rod (19); a contact friction force between the loading steel wire rope (12) and the connector-free steel wire ropes (27) symmetrically disposed on the rotational hub (01) is calculated by means of a torque variation measured by a dynamic torque rotation speed sensor (03); a temperature change law of a steel wire rope friction contact side face in an experiment process is monitored by aligning a thermal infrared imager (24) with a contact position between the loading steel wire rope (12) and the connector-free steel wire ropes (27) symmetrically disposed on the rotational hub (01); an expanding law of internal cracks of the loading steel wire rope (12) in a steel wire rope friction process is monitored by an acoustic emission sensor (26) above the loading steel wire rope (12); the hub (01) is braked by means of a brake force exerted on a brake disk (09) by a pneumatic drive brake (07), and the friction wear performance between the loading steel wire rope (12) and the two connector-free steel wire ropes (27) in a brake process is tested; contact wrap angles of the loading steel wire rope (12) and the connector-free steel wire ropes (27) are changed by replacing fixed pulleys (13) with different diameters, and the influence on the friction wear performance between the steel wire ropes caused by different contact wrap angles is tested; and the influence on the friction wear performance between the steel wire ropes caused by different steel wire rope structures is tested by replacing the loading steel wire rope (12) and the two connector-free steel wire ropes (27) with different structures.
  9. 9. A method for tensioning and fixing a connector-free steel wire rope, which is applied to the apparatus according to any one of claims 1 to 7, characterized in that a first flange-type top cover (33) and a second flange-type top cover (30) cooperate with a hub (01) via inclined surfaces, a T-shaped bolt (29) passes through bolt holes in the first flange-type top cover (33) and the second flange-type top cover (30), a nut is screwed, and under the action of a fastening force of the T-shaped bolt (29), and the first flange-type top cover (33) and the second flange-type top cover (30) continuously extrude two connector-free steel wire ropes (27), such that the two connector-free steel wire ropes (27) enter two parallel circular arc-shaped grooves in the hub (01) along inclined surfaces on the hub (01), and the two connector-free steel wire ropes (27) are tensioned under the action of an own radial elastic force and fixed into the circular arc-shaped grooves in the hub (01).
AU2015383063A 2015-03-10 2015-12-28 Apparatus and method for detecting interlayer friction of steel wire rope of winding-type hoist Active AU2015383063B2 (en)

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CN201510102983.4 2015-03-10
PCT/CN2015/099143 WO2016141760A1 (en) 2015-03-10 2015-12-28 Steel wire rope interlayer friction detection apparatus and method for winding-type hoist

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104634686B (en) * 2015-03-10 2017-05-03 中国矿业大学 Twisted-type hoister steel wire rope interlayer friction detection device and method
CN105571879A (en) * 2016-02-25 2016-05-11 潘唯锡 Tangential alternating stress testing equipment for hub of vehicle
CN105584944B (en) * 2016-03-04 2017-11-10 中国矿业大学 A kind of boom hoist cable layer to layer transition detection means and method
CN105651636B (en) * 2016-03-15 2018-08-28 骏马化纤股份有限公司 A kind of fatigue tester
CN105823696A (en) * 2016-05-26 2016-08-03 中国矿业大学 Ultra-deep vertical shaft winding type hoisting steel cable multi-axial friction fatigue damage monitoring device and method
CN106482782B (en) * 2016-09-26 2018-09-14 中国矿业大学 Dynamic radial deformation and dynamic tension monitoring device and the method for the two-fold wire type multi-lay winding steel wire rope of hoist of deep-well
CN106840935B (en) * 2017-03-03 2019-12-27 南京理工大学 Rope hypervelocity friction test machine
CN108956309B (en) * 2018-10-10 2019-10-25 中国矿业大学 Friction drive hoist wirerope load-carrying properties test device and method
CN109115615B (en) * 2018-10-10 2019-12-03 中国矿业大学 Mining annular wire rope load-carrying properties test device and method
CN110017960A (en) * 2019-05-24 2019-07-16 宗秀伟 A kind of bridge wirerope vibration detection simulator
CN110658092A (en) * 2019-11-08 2020-01-07 中国矿业大学 Device and method for testing performance of multiple wires in hoisting steel wire rope
CN110736673A (en) * 2019-11-08 2020-01-31 中国矿业大学 multi-wire spiral contact testing device and method in hoisting steel wire rope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936136A (en) * 1988-04-18 1990-06-26 Kone Elevator Gmbh Method for checking the friction between the traction sheeve and the suspension ropes of an elevator
CN104122198A (en) * 2014-06-17 2014-10-29 中国矿业大学 Friction liner-hoisting steel wire rope dynamic friction drive test device and friction liner-hoisting steel wire rope dynamic friction drive test method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013142A (en) * 1975-10-07 1977-03-22 Westinghouse Electric Corporation Elevator system having a drive sheave with rigid but circumferentially compliant cable grooves
CN1220042C (en) * 2003-09-26 2005-09-21 上海交通大学 Rolling and friction composite testing machine
CN100501369C (en) * 2005-12-27 2009-06-17 中国矿业大学 High-speed tester for friction between steel wire rope and liner
CN100483105C (en) * 2006-10-12 2009-04-29 上海交通大学 Elevator dray driving sliding contact fatigue wear testing machine
EP2106956B1 (en) * 2007-01-23 2016-11-23 Rongjun Tie Constant tension spring compensation equipment
CN101363788B (en) * 2008-10-08 2011-02-09 燕山大学 High-speed light-load fibrage composite self-lubricating bearing strip performance test machine
CN101393113B (en) * 2008-11-05 2010-10-13 中国科学院力学研究所 Device for measuring material friction action in multiatmosphere and vacuum environment
CN101581647B (en) * 2009-04-16 2010-12-08 济南益华摩擦学测试技术有限公司 High-frequency reciprocating fatigue, friction and wear tester
CN104215534A (en) * 2013-05-30 2014-12-17 深圳市海洋王照明工程有限公司 Light fixture cable conductor wearing testing device and method thereof
CN203474150U (en) * 2013-09-03 2014-03-12 山东泰山天盾矿山机械有限公司 Steel wire rope sliding monitoring device of friction elevator
CN103808576B (en) * 2013-11-08 2017-10-13 深圳市宏之都科技有限公司 A kind of cable abrasion wear test machine
CN203824855U (en) * 2014-04-01 2014-09-10 江门市蓬江区文森装饰材料有限公司 Multifunctional abrasion tester
CN103954553B (en) * 2014-04-15 2015-12-16 中国矿业大学 The test unit of the dynamic micro tribology state of monitoring wire rope-friction lining and method
CN103940733B (en) * 2014-04-21 2016-01-27 中国矿业大学 A kind of microslip test platform of hoister friction lining
CN104634686B (en) * 2015-03-10 2017-05-03 中国矿业大学 Twisted-type hoister steel wire rope interlayer friction detection device and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4936136A (en) * 1988-04-18 1990-06-26 Kone Elevator Gmbh Method for checking the friction between the traction sheeve and the suspension ropes of an elevator
CN104122198A (en) * 2014-06-17 2014-10-29 中国矿业大学 Friction liner-hoisting steel wire rope dynamic friction drive test device and friction liner-hoisting steel wire rope dynamic friction drive test method

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CN104634686A (en) 2015-05-20
AU2015383063A1 (en) 2016-09-29

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