WO2016141760A1 - Steel wire rope interlayer friction detection apparatus and method for winding-type hoist - Google Patents

Steel wire rope interlayer friction detection apparatus and method for winding-type hoist Download PDF

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Publication number
WO2016141760A1
WO2016141760A1 PCT/CN2015/099143 CN2015099143W WO2016141760A1 WO 2016141760 A1 WO2016141760 A1 WO 2016141760A1 CN 2015099143 W CN2015099143 W CN 2015099143W WO 2016141760 A1 WO2016141760 A1 WO 2016141760A1
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WIPO (PCT)
Prior art keywords
wire rope
hub
jointless
cover
friction
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PCT/CN2015/099143
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French (fr)
Chinese (zh)
Inventor
彭玉兴
朱真才
孙士生
王大刚
曹国华
陈国安
刘送永
李伟
周公博
沈刚
卢昊
李同清
Original Assignee
中国矿业大学
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Priority to CN201510102983.4A priority Critical patent/CN104634686B/en
Priority to CN201510102983.4 priority
Application filed by 中国矿业大学 filed Critical 中国矿业大学
Publication of WO2016141760A1 publication Critical patent/WO2016141760A1/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

A steel wire rope interlayer friction detection apparatus and method for a winding-type hoist. The apparatus comprises a support, and 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, which are provided on the support. By means of a fixed pulley positioning apparatus and a loading manner of an electric pull rod (19) controlled by a computer, a stable steel wire rope contact load can be continuously applied, and a friction force, a temperature field and a friction coefficient between steel wire ropes and an expanding law of internal cracks inside the steel wire ropes are monitored in real time, such that an interlayer friction situation of the steel wire ropes on a roller of a winding-type hoist can be simulated, a frictional wear experiment between a loading steel wire rope (12) and a connector-free steel wire rope (27) on a rotary hub (01) is implemented, a steel wire rope frictional wear fracture mechanism is revealed, and the friction damage evolution of the steel wire ropes and the fatigue life of the steel wire ropes are evaluated.

Description

Wound-type hoist wire rope interlayer friction detecting device and method Technical field

The invention relates to a friction detecting device and a method for friction between layers of a wire rope hoist, and is particularly suitable for simulating an experiment environment and working condition of a wire rope on a winding hoist drum in a mine lifting process, and is used for detecting a winding hoist drum The friction between the upper layers of the wire rope.

Background technique

With the rapid development of the national economy, China's demand for mineral resources has increased significantly, prompting the deepening of the exploitation of China's underground mineral resources. With the increase in mining depth, deep well mining and transportation issues have also received much attention. The average mining depth of mines in China is about 500m. With the consumption of shallow mineral resources, the future mining depth will inevitably reach 1000-2000m. At present, China's deep well lifting mostly uses single rope winding hoists (single and double cylinder) and multi-rope friction hoists. Domestic multi-rope friction hoists are generally not recommended for use in depths exceeding 1200m. The tension of the wire rope changes too much and affects the service life of the wire rope. As a key transmission component of the winding type lifting system, the hoisting wire rope is connected with the hoist and the lifting container. The reliability of the steel wire rope seriously affects the safety production of the coal mine and the life safety of the employees. Once the lifting wire rope fails, the machine will destroy the serious and serious safety accident. happened.

In the vertical shaft lifting cycle (lifting the terminal load, lifting process and unloading), the lifting wire rope circulates around and around the drum cyclically, especially when the wire rope is wound in multiple layers on the drum, the hoisting wire rope is circulated in and out of the drum to cause the winding, Friction and wear occurs between the wound wire rope and the lower layer wound wire rope. As the lifting height increases, the lifting load increases, and the lifting speed increases. The influence of such friction and wear on the life of the wire rope becomes larger and larger. Therefore, it reveals the characteristics of the coupling movement between the ropes during the high-speed multi-layer high-speed winding process, and explores the frictional contact behavior in the joint and separation movements of the ropes to improve the service life of the reinforced wire ropes in the deep wells, ensure the safe production of deep mines, and avoid personnel. Casualties and equipment damage, and the protection of China's energy supply are of great significance.

Therefore, a friction device and method for detecting the friction between the wire ropes of the winding hoist are proposed. The friction, the temperature field, the friction coefficient and the internal crack propagation of the wire rope during the friction and wear of the wire rope are dynamically monitored in real time to reveal the friction and wear fracture of the wire rope. Mechanism, evaluation of friction damage evolution of steel wire rope and fatigue life of steel wire rope.

Summary of the invention

The invention solves the problem that the prior device can not detect the multi-layer high-speed winding process of the winding hoist wire rope drum The friction and wear are interposed, and a device and method for simulating the friction between the wires of the winding hoist drum are proposed, and the friction and wear condition of the wire rope can be dynamically monitored in real time.

The invention adopts the following technical solutions:

The invention firstly provides an inter-layer friction detecting device for a winding hoist wire rope, comprising a bracket, a loading wire rope positioning system arranged on the bracket, a jointless wire rope positioning system, a braking system, a power loading system and a condition monitoring system;

The bracket comprises a base (17) and four uprights (14) fixed on the base (17), the four uprights (14) enclosing a rectangle, two longitudinal uprights perpendicular to the axis of the drive shaft (28) a beam (25) is arranged at the top, and a fixed pulley support beam (11) is arranged between the two lateral columns parallel to the axial direction of the transmission shaft (28);

The loading wire rope positioning system comprises a fixed pulley support arranged on a fixed pulley support beam (11), two fixed pulleys (13) symmetrically arranged with respect to a vertical plane of the axis of the transmission shaft (28), and two fixed pulleys (13) The pin (10) is connected to the fixed sheave support, and the load wire is positioned on the two non-jointed wire ropes (27) tensioned on the hub (01) by the grooves on the circumference of the two fixed pulleys (13) The position between the gaps;

The jointless wire rope positioning system comprises a hub (01), two parallel circular arc grooves disposed on the circumference of the hub (01), a flanged top cover (33), and a flanged top cover two (30) ), T-bolt (29), jointless wire rope (27); the outer circumference of both sides of the hub (01) are set to be inclined, flanged top cover (33), flanged top cover two (30) The inner side is provided with a slope structure that cooperates with the slope;

The brake system includes a brake disc (09) disposed at an intermediate position of the coupling three (06), a pneumatic driving brake (07) disposed on the brake disc (09), and the brake is driven by the air pressure (07) a brake force acting on the brake disc (09) to brake the hub (01);

The power loading system includes a rotary drive system and a loading system; the rotary drive system includes a motor (08) disposed on the base (17), a coupling three (06) coupled to the output shaft of the motor (08), and Reducer (05) with coupling three (06), coupling two (04) connected to output shaft of reducer (05), dynamic torque speed sensor (03) connected to coupling two (04) a coupling (02) connected to the dynamic torque speed sensor (03), a transmission shaft (28) connected to the coupling one (02), and a hub (01) connected to the transmission shaft (28) by a key, Rotating the hub (01) by rotation of the motor (08); the loading system includes a pull ring (16) coupled to the base (17), a tensioner (15) coupled to the pull ring (16), and tensioning a loading wire rope (12) connected to the device (15), a rope hook (21) connected to the other end of the loading wire rope (12), a tension sensor (20) connected to the rope hook (21), and a tension sensor (20). An electric pull rod (19), an anchor bolt (18) connected to the electric pull rod (19), an anchor bolt (18) connected to the base (17), and a pulling force applied by the electric pull rod (19) acts on the loading wire rope (12) In The loading wire rope (12) generates a pressure load on the two jointless wire ropes (27) on the hub (01);

The condition monitoring system includes a dynamic torque speed sensor (03) disposed on the rotary drive system for dynamically monitoring dynamic alternating load torque and speed of the hub (01); a tension sensor (20) disposed on the loading system, For dynamically monitoring the load applied to the load wire rope (12) by the electric tie rod (19); the infrared camera (24) placed on the upper right side of the load wire rope (12) for dynamically detecting the loaded wire rope (12) and the jointless wire rope (27) The temperature variation law of the friction contact side during the friction and wear process; the acoustic emission sensor (26) disposed above the loading wire rope (12) is used to monitor the expansion law of the internal crack of the loaded steel wire rope (12) during the friction between the steel wire ropes.

The winding hoist wire rope interlayer friction detecting device is provided with a circular arc rubber washer (31) in the circular arc groove to increase the attachment between the two jointless wire ropes (27) and the hub (01) Focus on avoiding the damage of the jointless wire rope (27) by the force of the hub. The flanged top cover (33), the inner side of the flanged top cover two (30) and the two jointless steel wire ropes (27) are provided with L-shaped rubber washer (32) prevents the jointless wire rope (27) from being damaged by the flanged top cover (33) and the flanged top cover two (30) during tensioning.

The winding hoist wire rope interlayer friction detecting device simulates the winding friction of the winding hoist drum by loading the wire rope (12) with the contact friction of the jointless wire rope (27) symmetrically disposed on the rotating hub (01) The friction between the layers of the wire rope.

The winding type hoist wire rope interlayer friction detecting device, the flange of the flange type top cover (30) is circumferentially spaced at the same angle to set the countersink, and the flange type top cover one (33) The through holes are provided at the same angles in the upper circumference of the blue to facilitate the fastening of the T-bolts (29).

The winding hoist wire rope interlayer friction detecting device, the loading load of the loading wire rope (12) is applied by the electric pulling rod (19), and the frictional wear performance of the wire rope under different loads can be tested by changing the loading load.

The winding lining friction wire detecting device of the winding hoist, the change of the contact wrap angle between the loading wire rope (12) and the jointless steel wire rope (27) is realized by replacing the fixed pulleys (13) of different diameters, and changing the contact angle of the wire rope is The friction and wear properties of the wire rope under different contact wrap angles can be tested.

The wound hoist wire rope interlaminar friction detecting device tests the influence of different wire rope structures on the friction between the steel wires by using differently loaded wire ropes (12) and jointless wire ropes (27).

The invention also provides a detecting method for detecting the friction between the layers of the steel wire rope by using the above device, the flange type top cover (33) and the flange type top cover two (30) are matched with the wheel hub (01) through the inclined surface, T The bolt (29) passes through the bolt hole on the flange top cover (33) and the flange top cover two (30). The tightening nut acts under the tightening force of the T-bolt (29). The top cover one (33) and the flange top cover two (30) continuously squeeze the two jointless steel cords (27) so that the two jointless steel cords (27) enter the hub along the inclined surface of the hub (01) ( 01) Two parallel circles In the arcuate groove, the two jointless steel cords (27) are tensioned and fixed in the arcuate grooves in the hub (01) under the action of their own radial elastic force, and the two jointless steel cords (27) There is a gap between the joints; after the jointless steel wire rope (27) is tensioned on the circular arc groove on the hub (01), the flanged top cover (33) and the flanged top cover two (30) are removed;

The motor (08) drives the hub (01) to rotate the unconnected wire rope (27) to rotate, and the load wire rope (12) generates frictional wear with the two jointless wire ropes (27) under the load applied by the electric pull rod (19);

The contact friction force of the uncoupled wire rope (27) symmetrically disposed on the loading wire rope (12) and the rotating wheel hub (01) is calculated by the torque variation measured by the dynamic torque speed sensor (03);

The contact position of the load-free wire rope (12) and the jointless wire rope (27) symmetrically disposed on the rotating hub (01) is aligned by the infrared camera (24), and the temperature variation law of the frictional contact side of the wire rope during the experiment is monitored;

By loading the acoustic emission sensor (26) above the wire rope (12), the expansion law of the internal crack of the loaded wire rope (12) during the friction process between the wire ropes is monitored;

The wheel hub (01) is braked by a brake force applied to the brake disc (09) by a pneumatically driven brake (07) to test the load between the wire rope (12) and the two jointless wire ropes (27) during braking. Friction and wear performance;

The contact angle of the loaded wire rope (12) and the jointless wire rope (27) is changed by replacing the fixed pulleys (13) of different diameters, and the effects of different contact wrap angles on the friction and wear performance between the steel wires are tested;

The effects of different wire rope structures on the friction and wear properties of the steel wire ropes were tested by replacing the load wire ropes (12) and the two jointless wire ropes (27) of different structures.

The invention further provides a tension fixing method for a jointless steel wire rope applied to any of the above devices, the flange type top cover (33) and the flange type top cover two (30) pass the inclined surface and the hub (01) Fitted together, the T-bolt (29) passes through the bolt holes on the flanged top cover (33) and the flanged top cover two (30), and the tightening force of the tightening nut on the T-bolt (29) Under the action, the flanged top cover (33) and the flanged top cover two (30) continuously squeeze the two jointless steel wire ropes (27), so that the two jointless steel wire ropes (27) are along the wheel hub (01). The inclined surface enters two parallel circular arc-shaped grooves in the hub (01), and the two jointless steel ropes (27) are tensioned and fixed to the circular arc shape in the hub (01) under the action of the radial elastic force of the same. In the groove.

Advantageous Effects: Due to the adoption of the above technical solution, the invention can realize the friction and wear experiment between the loaded steel wire rope and the jointless steel wire rope on the rotating hub, to reveal the friction and wear fracture mechanism of the steel wire rope, evaluate the wear damage evolution of the steel wire rope and the fatigue life of the steel wire rope. It can simulate the friction between the ropes on the winding hoist drum. The fixed pulley positioning device and the computer software-controlled electric lever loading method can continuously apply stable wire rope contact load, and can monitor the friction and temperature field between the ropes in real time. Friction coefficient and the expansion law of internal crack of steel wire rope, revealing the friction and wear fracture mechanism of steel wire rope, evaluating the friction damage evolution of steel wire rope and fatigue of steel wire rope The life provides an effective experimental device; the experimental device is simple in operation and good in effect, and has wide practicality in the technical field.

DRAWINGS

Figure 1 is a schematic top plan view of the present invention;

Figure 2 is a schematic left side view of the present invention;

Figure 3 is a structural view of the A-A direction hub of Figure 2;

Figure 4 is a front view showing the structure of the jointless wire rope positioning system;

Figure 5 is a B-B arrow view of Figure 4 during tensioning of the jointless wire rope;

Figure 6 is a B-B arrow view of Figure 4 after tensioning of the jointless wire rope;

Among them: 01, hub; 02, coupling one; 03, dynamic torque speed sensor; 04, coupling two; 05, reducer; 06, coupling three; 07, pneumatic drive brake; 08, motor; Brake disc; 10, pin shaft; 11, support beam; 12, wire rope; 13, fixed pulley; 14, column; 15, tensioner; 16, pull ring; 17, base; 19, electric pull rod; 20, tension sensor; 21, rope hook; 22, bearing seat; 23, nut; 24, infrared camera; 25, beam; 26, acoustic emission sensor 27, jointless wire rope; ; 29, T-bolt; 30, flanged top cover 2; 31, arc-shaped rubber washer; 32, L-shaped rubber washer; 33, flanged top cover;

detailed description

An embodiment of the present invention will be further described below with reference to the accompanying drawings:

As shown in Figure 1-6, a winding hoist wire rope inter-layer friction detecting device includes a bracket, a loading wire rope positioning system on the bracket, a jointless wire rope positioning system, a brake system, a power loading system, and condition monitoring. system;

The bracket comprises a base 17 and four uprights 14 fixed on the base 17, the four uprights 14 enclosing a rectangle, and a cross member 25 is disposed between the two longitudinal columns perpendicular to the axial direction of the drive shaft 28, parallel to the transmission A fixed pulley support beam 11 is disposed in the middle between the two lateral columns in the axial direction of the shaft 28.

The loading wire rope positioning system comprises a fixed pulley support arranged on the fixed pulley support beam 11 and two fixed pulleys 13 symmetrically arranged about a vertical plane of the axis of the transmission shaft 28, and the two fixed pulleys 13 are passed through the pin shaft 10 The fixed pulley support is connected, and the loading wire rope is positioned by a groove on the circumference of the two fixed pulleys 13 at a gap position between the two jointless steel wires 27 tensioned on the hub 01;

The jointless wire rope positioning system comprises a hub 01, two parallel circular arc grooves provided on the circumference of the hub 01, a flanged top cover 33, a flanged top cover two 30, a T-bolt 29, and none The connecting wire rope 27; the circumferential outer edges of the two sides of the hub 01 are all provided as inclined faces, and the flanged top cover 33 and the flanged top cover two 30 are respectively provided with a bevel structure matching the inclined surface, and the flange type top cover 33. The flanged top cover two 30 is matched with the hub 01 through the inclined surface, and the T-bolt 29 passes through the flange top cover 33, the bolt hole on the flange type top cover 30, and the tightening nut is in the T type. Under the tightening force of the bolt 29, the flanged top cover 33 and the flanged top cover 20 30 continuously squeeze the two jointless steel cords 27, so that the two jointless steel cords 27 enter the hub along the inclined surface of the hub 01. In the two parallel circular arc grooves of 01, the two jointless steel cords 27 are tensioned and fixed in the circular arc-shaped grooves in the hub 01 under the action of their own radial elastic force, and the two jointless steel cords 27 There is a gap between them. After the jointless wire rope 27 is tensioned on the circular arc groove on the hub 01, the flange type top cover 33 and the flange type top cover cover 30 can be removed by disassembling the nut 23 and the T-bolt 29.

A circular arc-shaped rubber washer 31 is disposed in the circular arc groove to increase the adhesion between the two jointless wire ropes 27 and the hub 01 and to prevent the jointless wire rope 27 from being damaged by the force of the hub. 33. The inner side of the flanged top cover two 30 is in contact with the two jointless steel cords 27, and an L-shaped rubber washer 32 is arranged to prevent the jointless steel wire rope 27 from being flanged by the flange top cover 33 and the flange type during the tensioning process. The top cover is 30 damaged.

The brake system includes a brake disc 09 disposed at an intermediate position of the coupling 36, a pneumatically driven brake 07 disposed on the brake disc 09, and a brake actuator 07 acting on the brake disc 09 by the air pressure. Brake force to brake the hub 01.

The power loading system includes a rotary drive system and a loading system; the rotary drive system includes a motor 08 disposed on the base 17, a coupling 36 connected to the output shaft of the motor 08, and a deceleration coupled to the coupling 36 The switch 05 connected to the output shaft of the reducer 05, the dynamic torque rotational speed sensor 03 connected to the coupling 28, the coupling 02 connected to the dynamic torque rotational speed sensor 03, and the coupling 1 The connected transmission shaft 28 and the hub 01 connected to the transmission shaft 28 by a key are rotated by the rotation of the motor 08 to drive the hub 01;

The loading system includes a pull ring 16 connected to the base 17, a tensioner 15 connected to the pull ring 16, a load wire 12 connected to the tensioner 15, a rope hook 21 connected to the other end of the load wire 12, and a rope The tension sensor 20 connected to the hook 21, the electric pull rod 19 connected to the tension sensor 20, the anchor bolt 18 connected to the electric pull rod 19, and the anchor bolt 18 are connected to the base 17, and the pulling force applied by the electric pull rod 19 acts on the loading wire rope 12. The wire rope 12 is then loaded to create a compressive load on the two jointless wire ropes 27 on the hub 01.

The condition monitoring system includes a dynamic torque speed sensor 03 disposed on the rotary drive system for dynamically monitoring dynamic alternating load torque and speed of the hub 01; and a tension sensor 20 disposed on the loading system for moving The state is monitored by the electric pull rod 19 applied to the load of the load wire rope 12; the infrared thermal imager 24 disposed at the upper right of the load wire rope 12 is used for dynamically detecting the temperature change law of the friction contact side during the friction and wear process of the load wire rope 12 and the jointless wire rope 27 An acoustic emission sensor 26 disposed above the loading wire rope 12 for monitoring the expansion of the internal crack of the wire rope 12 during the friction between the wires.

The invention relates to a winding hoist wire rope inter-layer friction detecting device, which simulates the contact friction between the wire rope 12 and the jointless wire rope 27 symmetrically disposed on the rotating hub 01 to simulate the wire rope layer on the winding hoist drum Friction condition.

The flanges of the flanged top cover two 30 are circumferentially spaced apart from each other at the same angle, and the flanges of the flanged top cover 33 are circumferentially spaced at the same angle to facilitate the fastening of the T-bolt 29 .

In the winding hoist wire rope inter-layer friction detecting device, the loading load of the loading wire rope 12 is applied by the electric pull rod 19. The friction and wear properties of the wire rope under different loads can be tested by changing the loading load.

The invention relates to a winding hoist wire rope inter-layer friction detecting device, wherein the change of the contact angle between the loading wire rope 12 and the jointless wire rope 27 is realized by replacing the fixed pulleys 13 of different diameters, and the wire rope contact wrap angle can be changed to test different Friction and wear performance of the wire rope in contact with the wrap angle.

The winding friction detecting device for a winding hoist wire rope is characterized in that the contact friction between the loading wire rope 12 and the jointless wire rope 27 symmetrically disposed on the rotating hub 01 is calculated by the dynamic torque rotating speed sensor 03. inferred.

The invention relates to a winding hoist wire rope interlaminar friction detecting device, wherein the infrared camera 24 is aligned with the contact position of the unloaded wire rope 27 symmetrically disposed on the rotating wire rope 12 and the rotating wheel hub 01 for monitoring the wire rope during the experiment. The temperature change law of the friction contact side.

The above-mentioned winding hoist wire rope interlayer friction detecting device is provided with an acoustic emission sensor 26 disposed above the loading wire rope 12 for monitoring the expansion law of the internal crack of the wire rope 12 during the friction process between the steel wires.

The above-mentioned winding hoist wire rope inter-layer friction detecting device tests the influence of different wire rope structures on the friction between the steel wires by using the loaded steel wire rope 12 and the jointless steel wire rope 27 with different structures.

Detection method: the jointless steel wire rope 27 passes through the flange type top cover 33 and the flange type top cover two 30 under the fastening force of the T-bolt 29, so that the two jointless steel wire ropes 27 have a certain taper along the hub 01. The symmetrical inclined surface enters the circular arc-shaped groove symmetrically disposed in the hub 01, and the two jointless steel wire ropes 27 are tensioned and fixed in the circular arc-shaped groove in the hub 01 under the action of the radial elastic force thereof, and the two are not There is a gap between the joint wires 27. After the jointless wire rope 27 is tensioned on the circular arc groove on the hub 01, the flanged top cover 33 and the flanged top cover two 30 are removed.

The motor 08 drives the hub 01 to rotate to drive the unconnected wire rope 27 to rotate, and the load wire rope 12 generates frictional wear with the two jointless wire ropes 27 under the load applied by the electric pull rod 19.

The contact friction force of the unconnected wire rope 27 symmetrically disposed on the loading wire rope 12 and the rotating wheel hub 01 is calculated by the torque variation amount measured by the dynamic torque speed sensor 03;

The contact position of the loaded wire rope 12 and the jointless wire rope 27 symmetrically disposed on the rotating hub 01 is aligned by the infrared camera 24, and the temperature variation law of the frictional contact side of the wire rope during the experiment is monitored.

By loading the acoustic emission sensor 26 above the wire rope 12, the expansion law of the internal crack of the wire rope 12 during the friction process between the wire ropes is monitored.

The frictional wear performance between the loaded wire rope 12 and the two jointless wire ropes 27 during braking is tested by braking the brake force applied to the brake disc 09 by the air brake brake 07 to brake the hub 01.

The contact angle of the loaded wire rope 12 and the jointless wire rope 27 was changed by replacing the fixed pulley 13 of different diameters, and the influence of different contact wrap angles on the friction and wear performance between the steel wires was tested.

The effects of different wire rope structures on the friction and wear properties of the steel wire ropes were tested by replacing the load wire rope 12 and the two jointless wire ropes 27 of different structures.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims (9)

  1. A winding hoist wire rope interlayer friction detecting device comprises a bracket, a loading wire rope positioning system arranged on the bracket, a jointless wire rope positioning system, a braking system, a power loading system and a condition monitoring system;
    The bracket comprises a base (17) and four uprights (14) fixed on the base (17), the four uprights (14) enclosing a rectangle, two longitudinal uprights perpendicular to the axis of the drive shaft (28) a beam (25) is arranged at the top, and a fixed pulley support beam (11) is arranged between the two lateral columns parallel to the axial direction of the transmission shaft (28);
    The loading wire rope positioning system comprises a fixed pulley support arranged on a fixed pulley support beam (11), two fixed pulleys (13) symmetrically arranged with respect to a vertical plane of the axis of the transmission shaft (28), and two fixed pulleys (13) The pin (10) is connected to the fixed sheave support, and the load wire is positioned on the two non-jointed wire ropes (27) tensioned on the hub (01) by the grooves on the circumference of the two fixed pulleys (13) The position between the gaps;
    The jointless wire rope positioning system comprises a hub (01), two parallel circular arc grooves disposed on the circumference of the hub (01), a flanged top cover (33), and a flanged top cover two (30) ), T-bolt (29), jointless wire rope (27); the outer circumference of both sides of the hub (01) are set to be inclined, flanged top cover (33), flanged top cover two (30) The inner side is provided with a slope structure that cooperates with the slope;
    The brake system includes a brake disc (09) disposed at an intermediate position of the coupling three (06), a pneumatic driving brake (07) disposed on the brake disc (09), and the brake is driven by the air pressure (07) a brake force acting on the brake disc (09) to brake the hub (01);
    The power loading system includes a rotary drive system and a loading system; the rotary drive system includes a motor (08) disposed on the base (17), a coupling three (06) coupled to the output shaft of the motor (08), and Reducer (05) with coupling three (06), coupling two (04) connected to output shaft of reducer (05), dynamic torque speed sensor (03) connected to coupling two (04) a coupling (02) connected to the dynamic torque speed sensor (03), a transmission shaft (28) connected to the coupling one (02), and a hub (01) connected to the transmission shaft (28) by a key, Rotating the hub (01) by rotation of the motor (08); the loading system includes a pull ring (16) coupled to the base (17), a tensioner (15) coupled to the pull ring (16), and tensioning a loading wire rope (12) connected to the device (15), a rope hook (21) connected to the other end of the loading wire rope (12), a tension sensor (20) connected to the rope hook (21), and a tension sensor (20). An electric pull rod (19), an anchor bolt (18) connected to the electric pull rod (19), an anchor bolt (18) connected to the base (17), and a pulling force applied by the electric pull rod (19) acts on the loading wire rope (12) And then load steel Rope (12) a pressure load on the hub two endless rope (27) (01);
    The condition monitoring system includes a dynamic torque speed sensor (03) disposed on the rotary drive system for dynamically monitoring dynamic alternating load torque and speed of the hub (01); a tension sensor (20) disposed on the loading system, For dynamically monitoring the load applied to the load wire rope (12) by the electric tie rod (19); the infrared camera (24) placed on the upper right side of the load wire rope (12) for dynamically detecting the loaded wire rope (12) and the jointless wire rope (27) The temperature variation law of the friction contact side during the friction and wear process; the acoustic emission sensor (26) disposed above the loading wire rope (12) is used to monitor the expansion law of the internal crack of the loaded steel wire rope (12) during the friction between the steel wire ropes.
  2. A winding hoist wire rope interlaminar friction detecting device according to claim 1, wherein a circular arc-shaped rubber washer (31) is disposed in the circular arc groove to add two jointless steel wire ropes (27) and Adhesion between the hub (01) and avoiding the damage of the jointless wire rope (27) by the force of the hub, flanged top cover (33), flanged top cover two (30) inside and two jointless wire ropes (27) The contact part is provided with an L-shaped rubber washer (32) to prevent the jointless wire rope (27) from being damaged by the flanged top cover (33) and the flanged top cover two (30) during the tensioning process.
  3. The winding hoist wire rope interlaminar friction detecting device according to claim 1, wherein the contact friction between the wire rope (12) and the jointless wire rope (27) symmetrically disposed on the rotating hub (01) is To simulate the friction between the wire rope layers on the winding hoist drum.
  4. The winding hoist wire rope interlaminar friction detecting device according to claim 1, wherein the flange of the flanged top cover (30) is circumferentially spaced at the same angle to form a counterbore, and the flange type The flange of the top cover (33) is circumferentially spaced at the same angle to provide a through hole for the T-bolt (29) to be fastened.
  5. The winding hoist wire rope interlaminar friction detecting device according to claim 1, wherein the loading load of the loading wire rope (12) is applied by the electric pulling rod (19), and the loading load can be changed to test the wire rope under different loads. Friction and wear properties.
  6. The winding hoist wire rope interlaminar friction detecting device according to claim 1, wherein the change of the contact wrap angle between the loading wire rope (12) and the jointless wire rope (27) is performed by replacing the fixed pulleys (13) of different diameters. To achieve, the wire rope contact wrap angle can be changed to test the friction and wear performance of the wire rope under different contact wrap angles.
  7. The winding traverse wire rope interlaminar friction detecting device according to claim 1, characterized in that the influence of different wire rope structures on the friction between the steel wires is tested by using differently loaded wire ropes (12) and jointless steel wires (27). law.
  8. A method for detecting a device according to any one of claims 1-7, characterized in that the flanged top cover (33) and the flanged top cover two (30) are mated with the hub (01) by a bevel The T-bolt (29) passes through the bolt hole on the flanged top cover (33) and the flanged top cover two (30), and the tightening nut is under the tightening force of the T-bolt (29). The flanged top cover (33) and the flanged top cover two (30) continuously squeeze the two jointless steel cords (27) so that the two jointless steel cords (27) enter along the inclined surface of the hub (01) Two flats in the hub (01) In the circular groove of the row, the two jointless steel wires (27) are tensioned and fixed in the circular arc groove in the hub (01) under the action of their own radial elastic force, and the two jointless steel wires ( There is a gap between 27); after the jointless wire rope (27) is tensioned on the circular arc groove on the hub (01), the flanged top cover (33) and the flanged top cover two (30) Disassemble
    The motor (08) drives the hub (01) to rotate the unconnected wire rope (27) to rotate, and the load wire rope (12) generates frictional wear with the two jointless wire ropes (27) under the load applied by the electric pull rod (19);
    The contact friction force of the uncoupled wire rope (27) symmetrically disposed on the loading wire rope (12) and the rotating wheel hub (01) is calculated by the torque variation measured by the dynamic torque speed sensor (03);
    The contact position of the load-free wire rope (12) and the jointless wire rope (27) symmetrically disposed on the rotating hub (01) is aligned by the infrared camera (24), and the temperature variation law of the frictional contact side of the wire rope during the experiment is monitored;
    By loading the acoustic emission sensor (26) above the wire rope (12), the expansion law of the internal crack of the loaded wire rope (12) during the friction process between the wire ropes is monitored;
    The wheel hub (01) is braked by a brake force applied to the brake disc (09) by a pneumatically driven brake (07) to test the load between the wire rope (12) and the two jointless wire ropes (27) during braking. Friction and wear performance;
    The contact angle of the loaded wire rope (12) and the jointless wire rope (27) is changed by replacing the fixed pulleys (13) of different diameters, and the effects of different contact wrap angles on the friction and wear performance between the steel wires are tested;
    The effects of different wire rope structures on the friction and wear properties of the steel wire ropes were tested by replacing the load wire ropes (12) and the two jointless wire ropes (27) of different structures.
  9. A method of tensioning and fixing a jointless steel cord applied to the apparatus according to any one of claims 1 to 7, characterized in that the flanged top cover (33) and the flanged top cover two (30) pass through the inclined surface and the hub ( 01) Together, the T-bolt (29) passes through the bolt hole on the flanged top cover (33) and the flanged top cover two (30), and the tightening nut is tightened on the T-bolt (29). Under the action of solid force, the flanged top cover (33) and the flanged top cover two (30) continuously squeeze the two jointless steel wire ropes (27), so that the two jointless steel wire ropes (27) are along the wheel hub (01) The upper inclined surface enters two parallel circular arc-shaped grooves in the hub (01), and the two jointless steel cords (27) are tensioned and fixed to the circle in the hub (01) under the action of their own radial elastic force. In the curved groove.
PCT/CN2015/099143 2015-03-10 2015-12-28 Steel wire rope interlayer friction detection apparatus and method for winding-type hoist WO2016141760A1 (en)

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GB1619905.1A GB2540516A (en) 2015-03-10 2015-12-28 Steel wire rope interlayer friction detection apparatus and method for winding-type hoist
AU2015383063A AU2015383063B2 (en) 2015-03-10 2015-12-28 Apparatus and method for detecting interlayer friction of steel wire rope of winding-type hoist

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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
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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
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AU2015383063A1 (en) 2016-09-29
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AU2015383063B2 (en) 2017-02-02
GB2540516A (en) 2017-01-18

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