WO2020073581A1 - Device and method for testing bearing property of mining annular steel wire rope - Google Patents

Abstract

A device for testing the bearing property of a mining annular steel wire rope (5), comprising a steel wire rope loading device (1), a motor drive device (2), a detouring wheel positioning device (3), a positioning platform (4), and a drive wheel positioning device (6). The steel wire rope loading device (1) is arranged in the middle of a circular arc-shaped section on the left of the positioning platform (4) in the horizontal direction. The motor drive device (2) and the detouring wheel positioning device (3) are arranged at a circular arc-shaped section on the left of the positioning platform (4) in the radial direction, and are symmetrically arranged at both sides of the steel wire rope loading device (1). The drive wheel positioning device (6) is uniformly arranged at the circular arc-shaped section on the right of the positioning platform (4) in the radial direction. The drive wheel winding process and the detouring wheel rope returning process of the annular steel wire rope (5) in an endless rope transportation process are simulated on the basis that a hydraulic cylinder loads, a double-way hydraulic motor drives the annular steel wire rope (5), and a double-way hydraulic pump provides the load damping, and the tensile property and the fatigue life of the annular steel wire rope (5) are tested so as to accurately estimate the loading property thereof. The reliability is high, the university is high, and important significance in guaranteeing the safety of the annular steel wire rope (5) in the endless rope transportation system is achieved.

Description

Device and method for testing bearing capacity of annular steel wire rope for mine Technical field

The invention relates to a bearing performance testing device and method, in particular to a bearing performance testing device and method for a ring-shaped steel wire rope suitable for coal mines.

Background technique

Looped steel wire rope, also known as closed jointless steel wire rope, is usually used in overhead occupant installations in coal mines. It belongs to the electrodeless rope transportation system and is the most commonly used equipment to transport people up and down diagonally in mines. As the power traction unit of the transportation system, the endless wire rope is the key to the stable and safe operation of the infinite rope transportation system. Under the action of a motor or a hydraulic motor, the pre-tensioned endless wire rope is continuously circulated between the driving wheel and the roundabout wheel, which also causes the endless wire rope to be prone to wire breakage, diameter reduction and other failures. "Coal Mine Safety Regulations" stipulates that the steel rope for the overhead passenger device should be inspected at least once a week. When the ratio of the broken area of the wire rope to the total broken area of the steel wire exceeds 1% within a twisting pitch, or the diameter of the wire rope compared with the nominal diameter of the wire rope When shrinking by 10%, the wire rope is scrapped and the wire rope must be replaced. Before installing the new rope, the new rope should be avoided to reduce the traction performance of the transportation system, causing major safety hazards. In addition, the overhead passenger device is a long-term continuous operation of coal mine equipment, and the rope replacement needs to interrupt the transportation of personnel. If the rope needs to be repaired after the rope is replaced, it will cause significant economic losses. Therefore, before replacing a new rope, it is necessary to conduct strict load-bearing test on the steel rope.

At present, there are many manufacturers of ring-shaped steel wire ropes, the manufacturing processes and production standards used are not the same, and the bearing performance test lacks a unified device. Due to the different output of coal mines, the variety of roadways, the number of miners and the flow frequency, different demands are placed on the traction force and traction speed, resulting in aerial riders with different winding radii, which makes it difficult to test the performance of the looped wire rope Adopt a unified device, and build test devices separately for looped steel wire ropes with different winding radii, which will incur higher construction and operating costs and will not meet economic requirements. At present, the factory inspection of steel wire ropes mainly adopts the linear tension and torsion test of the steel wire rope, or the tensile, torsion and torsion test of the steel wire, but it cannot effectively carry out the load bearing performance test of the steel wire rope under different winding radii, and it cannot accurately reflect The carrying capacity of the wire rope.

At present, the research on the detection of ring-shaped steel wire ropes mainly focuses on the detection of the equipment in active service, such as the online detection device for the steel wire rope of the mine aerial passenger device disclosed by the patent number ZL201410480749. Failure; the comprehensive measurement device for the quality of the electrodeless rope disclosed by the patent number ZL201520030246 is to determine whether the quality of the steel rope is good or bad by detecting whether the steel rope can withstand the maximum tension. However, at present, the above research cannot detect looped steel wire ropes with different winding diameters, and cannot simulate the creeping process of the steel wire ropes in the enveloping arc, nor can it accurately test the load-bearing properties of the steel wire ropes such as tensile strength and fatigue life. Therefore, it is necessary to study a test device that can test the bearing performance of endless steel wire ropes with different winding radii, accurately assess the tensile strength and fatigue life of the steel wire ropes, so as to uniformly calibrate different types of steel wire ropes produced by various manufacturers before on-site installation Nuclear, to ensure the safety of the mine cordless transport system, and there is currently no corresponding test equipment.

Summary of the invention

Technical problem: The purpose of the present invention is to overcome the shortcomings in the prior art, and to provide a test device and method for the bearing performance of a ring-shaped steel wire rope for mining with simple structure, convenient operation, safety and reliability, and good test results.

Technical solution: In order to achieve the above object, the test device for bearing performance of the annular steel wire rope of the present invention includes a wire rope loading device, a motor drive device, a roundabout wheel positioning device, a positioning platform and a driving wheel positioning device. The positioning platform is along the horizontal direction Arrangement, the wire rope loading device is arranged horizontally in the middle of the arc segment on the left side of the positioning platform, and the motor drive device and the roundabout wheel positioning device are radially arranged on the left arc segment of the positioning platform and are symmetrically arranged On both sides of the wire rope loading device, the driving wheel positioning device is evenly arranged in the radial segment on the right side of the positioning platform in the radial direction; the positioning platform has an elliptical ring shape, and a plurality of positioning holes are arranged on the circumference of the ellipse ring. The hole density of the positioning holes along the left and right circular arc sections meets the circular arc of the circular steel rope surrounded by multiple driving wheel positioning devices, and meets the test needs of winding the circular steel rope under test of different diameters, and at the same time satisfies the steel rope loading device, motor drive device and The circular arc of the circular wire rope surrounded by the roundabout positioning device is equal to the winding diameter of the circular wire rope to be tested.

The wire rope loading device includes a hydraulic cylinder sleeve, a tension loading slide table, a tension loading screw, a tension loading screw nut, a loading hydraulic cylinder piston rod, a tension loading roller, a tension loading friction pad, a tension loading support platform, and tension A loading support and a tension loading handwheel; the tension loading support platform is provided on the tension loading support, the tension loading screw, the tension loading screw nut and the tension loading hand wheel are arranged coaxially, and the tension loading hand wheel The rotation drives the tension loading screw to rotate, thereby pushing the tension loading screw nut forward and backward; the tension loading slide is fixed on the tension loading screw nut, and can slide on the surface of the tension loading support table in the axial direction; the hydraulic cylinder The cylinder sleeve is arranged on the tension loading slide table in the axial direction, the top end of the piston rod of the loading hydraulic cylinder is provided with a tension loading roller, the rim of the tension loading roller is provided with a groove and a tension loading friction pad is installed, the tension The loading friction pad is provided with a rope groove.

The motor drive device includes a motor screw nut, a motor main slide, a motor positioning bolt, a bidirectional motor, a motor spindle, a motor main roller, a motor clamping bolt, a motor friction pad, a motor auxiliary roller, a motor auxiliary slide, Motor clamping nut, motor screw, motor support, motor support table and motor handwheel; the motor support table is provided on the motor support, motor screw, motor screw nut and motor handwheel are coaxially arranged, motor The rotation of the hand wheel drives the rotation of the motor screw, which in turn drives the motor screw nut forward and backward; the motor main slide is fixed to the motor screw nut and can slide on the upper surface of the motor support table in the axial direction; the motor positioning bolt will be bidirectional The motor and the motor main roller are coaxially fixed on the motor main slide, the bidirectional motor drives the motor main roller to rotate synchronously; the motor auxiliary slide is arranged on the upper surface of the motor support table, and the motor auxiliary slide is provided with the motor auxiliary roller , The axes of the motor main roller and the motor auxiliary roller are on a straight line; the motor main slide and the motor auxiliary slide are provided with collinear through holes on both sides, The motor clamping bolt passes through the through hole from one end to connect the motor main slide and the motor auxiliary slide together, and is tightened at the other end by the motor clamping nut, so that the motor main roller and the motor auxiliary roller can act on the squeezing force The under-clamped steel wire rope is clamped down; the rims of the motor main roller and the motor auxiliary roller are provided with grooves, and the motor friction pads are installed in the grooves, and the motor friction pads are provided with rope grooves.

The detour wheel positioning device includes a detour wheel support, a detour wheel screw, a detour wheel screw nut, a detour wheel slide table, a detour wheel roller, a detour wheel friction pad, a detour wheel support, and a detour wheel hand wheel; The detour wheel support platform is provided on the detour wheel support, the detour wheel screw, the detour wheel screw nut and the detour wheel hand wheel are coaxially arranged, and the detour wheel hand wheel rotation drives the detour wheel screw to rotate, thereby pushing the detour wheel The wheel screw nut moves back and forth; the circuitous wheel slide table is fixed to the circuitous wheel screw nut and can slide on the upper surface of the circuitous wheel support table in the axial direction; the circuitous wheel roller is arranged on the circuitous wheel slide table and the axis of the circuitous wheel roller is positive It intersects the axis of the lead screw of the roundabout wheel; the rim of the roundabout wheel roller is provided with a groove, and the roundabout wheel friction pad is installed in the groove, and the roundabout wheel friction pad is provided with a rope groove.

The driving wheel positioning device includes a driving wheel positioning support platform, a bidirectional hydraulic pump, a driving wheel positioning screw, a driving wheel positioning support, a hydraulic pump positioning bolt, a hydraulic pump spindle, a driving wheel positioning main roller, and a driving wheel positioning main slide Table, drive wheel positioning friction pad, drive wheel clamping bolt, drive wheel positioning auxiliary roller, drive wheel positioning auxiliary sliding table, drive wheel positioning screw nut, drive wheel clamping nut and drive wheel positioning hand wheel; the drive The wheel positioning support platform is provided on the driving wheel positioning support. The driving wheel positioning screw, the driving wheel positioning screw nut and the driving wheel positioning hand wheel are coaxially arranged, and the driving wheel positioning hand wheel rotates to drive the driving wheel positioning wire The bar rotates, which pushes the drive wheel positioning screw nut forward and backward; the drive wheel positioning main slide is fixed to the drive wheel positioning screw nut, and can slide on the upper surface of the drive wheel positioning support table in the axial direction; the hydraulic pump is positioned The bolt coaxially fixes the bidirectional hydraulic pump and the driving wheel positioning main roller on the driving wheel positioning main slide, and the driving wheel positioning main roller drives the hydraulic pump spindle to rotate synchronously The driving wheel positioning auxiliary slide table is provided on the upper surface of the driving wheel positioning support table, the driving wheel positioning auxiliary slide table is provided with a driving wheel positioning auxiliary roller, the driving wheel positioning main roller and the driving wheel positioning auxiliary roller axis On a straight line; the driving wheel positioning main sliding table and the driving wheel positioning auxiliary sliding table are provided with collinear through holes on both sides, and the driving wheel clamping bolt passes through the through hole from one end to position the driving wheel main The sliding table is connected with the driving wheel positioning auxiliary sliding table, and is tightened at the other end by the driving wheel clamping nut, so that the driving wheel positioning main roller and the driving wheel positioning auxiliary roller can clamp the annular steel wire rope under the action of the squeezing force; The rims of the driving wheel positioning main roller and the driving wheel positioning auxiliary roller are provided with grooves, and the driving wheel positioning friction pads are installed in the grooves, and the driving wheel positioning friction pads are provided with rope grooves.

The number of the driving wheel positioning device and the roundabout wheel positioning device depends on the winding radius and the test accuracy of the tested circular steel wire rope.

According to the test method of the above-mentioned test device for the bearing performance of the annular steel wire rope for mining, it includes the following steps:

(a) Install the tension loading support table on the tension loading support, the tension loading screw, the tension loading screw nut and the tension loading handwheel are coaxially installed, and fix the tension loading slide on the tension loading screw nut, hydraulically The cylinder liner is arranged on the tension loading slide table in the axial direction, and the tension loading friction pad is installed in the groove of the tension loading roller, and the tension loading roller is installed on the top of the piston rod of the loading hydraulic cylinder, assembled into a wire rope loading device;

(b) Install the motor support on the motor support, the motor screw, the motor screw nut and the motor hand wheel are coaxially installed, and the motor friction pad is installed in the rim groove of the motor main roller and the motor auxiliary roller, The motor positioning bolt is used to fix the bidirectional motor and the motor main roller coaxially to the motor main slide. The motor auxiliary roller is installed on the motor auxiliary slide. The motor clamping bolt is used to pass the through hole from the end of the slide to the motor main slide. The motor sub-slides are connected together, and fixed at the other end of the slide using motor clamping nuts to assemble a motor drive device;

(c) Install the roundabout wheel support table on the roundabout wheel support, the roundabout wheel screw, the roundabout wheel screw nut and the roundabout wheel handwheel are coaxially mounted, fix the roundabout wheel slide table to the roundabout wheel screw nut, and the roundabout wheel roller installation On the roundabout sliding table, make its axis orthogonal to the axis of the roundabout screw, install the roundabout friction pad in the groove of the rim of the roundabout wheel, and assemble the roundabout positioning device;

(d) Install the driving wheel positioning support on the driving wheel positioning support, the driving wheel positioning screw, the driving wheel positioning screw nut and the driving wheel positioning handwheel are coaxially installed, and the driving wheel positioning main slide is fixed to the drive The wheel positioning screw nut, the driving wheel positioning friction pad are installed in the rim grooves of the driving wheel positioning main roller and the driving wheel positioning auxiliary roller, and the bidirectional hydraulic pump and the driving wheel positioning main roller are coaxially fixed by the hydraulic pump positioning bolt On the driving wheel positioning main sliding table, the driving wheel positioning auxiliary roller is installed on the driving wheel positioning auxiliary sliding table, and the driving wheel positioning bolt is used to pass through the through hole from one end of the sliding table to position the driving wheel to the main sliding table and the driving wheel positioning pair The slide tables are connected together, and fixed at the other end of the slide table with a drive wheel clamping nut to assemble a drive wheel positioning device;

(e) Set the number of positioning holes on the positioning platform based on the winding diameter D and 180 ° enveloping angle of the tested circular steel rope, and install a steel rope loading device in the horizontal arc on the left side of the positioning platform In the middle position, a motor drive device is installed on the left arc segment of the positioning platform on the upper and lower sides of the wire rope loading device in the radial direction, and on the left arc segment of the positioning platform beside the upper and lower motor drive devices, respectively in the radial direction Install multiple roundabout wheel positioning devices; at the same time, install multiple drive wheel positioning devices on the right arc segment of the positioning platform in the radial direction;

(f) Turn the tension loading handwheel to push the tension loading screw nut forward and backward, turn the motor handwheel to push the motor screw nut forward and backward, turn the roundabout wheel handwheel to push the roundabout wheel screw nut forward and backward, turn the drive wheel to position the handwheel to push The drive wheel positioning screw nut moves back and forth to make the outer diameter of the tension loading roller on the left side of the positioning platform, the main roller of the motor and the roundabout roller to form an arc diameter equal to the winding diameter D, and the arc angle equal to the surrounding angle 180 ° , The diameter of the arc enclosed by the outer edge of the main roller on the right side of the driving wheel is equal to the winding diameter D, and the arc angle is equal to the surrounding angle of 180 °;

(g) Turn the tension-loading handwheel to push the tension-loading screw nut to shrink, and insert the tested circular steel rope into the rope groove of the tension-loading friction pad, motor friction pad, circuitous wheel friction pad and driving wheel positioning friction pad ， Turn the tension loading handwheel to push the tension loading screw nut to stretch, until the tension loading roller presses the tested ring wire rope to pre-tension, tighten the motor clamping nut and the driving wheel clamping nut to make the motor friction pad and drive The wheel positioning friction pad can tightly clamp the tested ring-shaped steel wire rope without sliding relative to the tested ring-shaped steel wire rope;

(h) Adjust the oil pressure of the oil outlet of the loading hydraulic cylinder and the oil pressure of the oil inlets of the two bidirectional motors to simulate the loose rope side load F _{loose rope side} and tight rope side load F _{tight rope} on both sides of the tested ring wire rope drive wheel _Side :

In the formula: F _{hydraulic cylinder} is the pressure exerted by the tension loading roller on the tested wire rope, M is the output torque of the bidirectional motor, r is the radius of the motor main roller, and β is the axis connection between the tension loading roller and the motor main roller. The angle in the horizontal direction,

Simulate the tangential force distribution of the tested ring wire rope drive wheel in the range of 180 ° enclosing angle:

In the formula: B is the width of the actual friction pad of the hoist, μ is the friction coefficient of the actual friction pad,

It is the angle of creeping arc in the envelope arc under the action of F _{tight rope side} and F _{loose rope side} ,

Thus, the tangential force f ₁ , f ₂ , f ₃ , f ₄ , f ₅ , f ₆ , f ₇ of the driving wheel positioning main wheel of the measured circular wire rope on the right side of the positioning platform is obtained, and then the bidirectional hydraulic pump is adjusted accordingly The oil pressure of the oil pressure port adds additional rotation damping to the main wheel of the driving wheel positioning:

In the formula: k is the compensation coefficient, r is the radius of the main wheel of the driving wheel positioning, when the bidirectional motor drives the circular steel wire loop to rotate, F _{tight rope side} = kf ₁ + kf ₂ + kf ₃ + kf ₄ + kf ₅ + kf ₆ + kf ₇ + F _{slack rope side} ,

In order to simulate the actual winding process of the endless steel wire rope in the electrodeless rope transportation system, and the winding process of the steel wire rope in the surrounding arc of the winding process.

When it is necessary to test the tensile performance of the looped steel wire rope, adjust the oil pressure of the oil outlet of the loading hydraulic cylinder, the oil pressure of the oil inlet of the two-way motor and the oil pressure of the oil pressure of the two-way hydraulic pump to simulate the winding process of the tested wire rope Under overload, stuck rope and other working conditions, start loading hydraulic cylinder, two-way hydraulic pump and two-way motor in sequence. At this time, by detecting whether the change of the wire rope diameter of the tested ring wire rope is within the allowable threshold, it is detected whether the tested ring wire rope meets the tensile strength Performance requirements

When it is necessary to test the fatigue life of the circular wire rope, adjust the oil pressure of the oil outlet of the loading hydraulic cylinder, the oil pressure of the oil inlet of the two-way motor and the oil pressure of the oil inlet of the two-way hydraulic pump to simulate the driving wheel winding process of the infinite rope transportation system ， Drag the tested looped steel wire rope cyclically, at this time, by detecting whether the broken wire percentage and diameter change of the tested looped steel wire rope in the cycle period are within the allowable threshold, it is detected whether the tested looped steel wire rope meets the requirements of bearing fatigue life. The actual limit of the rope transport system can be adjusted by adjusting the flow of the two-way motor and the two-way hydraulic pump, which can speed up the testing process to a large extent.

Beneficial effect: Due to the adoption of the above technical solution, the present invention adopts a driving wheel and detour wheel positioning device based on screw transmission, which can be used for different winding radii; hydraulic cylinder loading and bidirectional hydraulic motor driving can simulate overload, jamming, etc. Working conditions, test the tensile properties of the wire rope under extreme working conditions. Based on the principle of hydraulic cylinder loading, two-way hydraulic motor drive wire rope, and two-way hydraulic pump to provide load damping, the driving wheel winding process and the roundabout wheel return process of the endless wire rope in the infinite rope transportation system are simulated. The endless wire rope can be simulated by the load damping provided by the hydraulic pump The tangential force distribution along the actual drive wheel, and then simulate the wire rope creeping process in the enveloping arc, in order to accurately test the fatigue life of the wire rope, so as to achieve an accurate test of the load capacity of the wire rope, can meet the test of the different winding radius of the wire rope The testing requirements of the test can be tested on the bearing capacity of the tested circular wire ropes with different winding radii to accurately assess the tensile strength and fatigue life of the wire rope. Its simple structure, convenient operation, high reliability and strong versatility are The safety of the endless wire rope in the transportation system is of great significance. It has wide practicality in this technical field.

BRIEF DESCRIPTION

Figure 1 is a schematic diagram of the device structure of the present invention;

Figure 2 is a schematic structural view of a wire rope loading device;

Figure 3 is a schematic diagram of the structure of the motor drive device;

4 is a schematic diagram of the structure of a roundabout positioning device;

5 is a schematic structural view of a driving wheel positioning device;

6 is a schematic diagram of the test principle of the device of the present invention.

In the picture: 1—wire rope loading device, 1-a—hydraulic cylinder liner, 1-b—tension loading slide, 1-c—tension loading screw, 1-d—tension loading screw nut, 1-e— Loading hydraulic cylinder piston rod, 1-f—tension loading roller, 1-g—tension loading friction pad, 1-h—tension loading support platform, 1-i—tension loading support, 1-j—tension loading hand wheel , 2—motor drive device, 2-a—motor screw nut, 2-b—motor main slide, 2-c—motor positioning bolt, 2-d—bidirectional motor, 2-e—motor spindle, 2-f — Motor main roller, 2-g—motor clamping bolt, 2-h—motor friction pad, 2-i—motor auxiliary roller, 2-j—motor auxiliary slide, 2-k—motor clamping nut, 2 -l—motor screw, 2-m—motor support, 2-n—motor support, 2-o—motor handwheel, 3-circular wheel positioning device, 3-a—circular wheel support, 3-b —Circular wheel screw, 3-c—Circular wheel screw nut, 3-d—Circular wheel slide, 3-e—Circular wheel roller, 3-f—Circular wheel friction pad, 3-g—Circular wheel bearing , 3-h—roundabout handwheel, 4-positioning platform, 4-a—positioning hole, 5-tested ring Wire rope, 6—Drive wheel positioning device, 6-a—Drive wheel positioning support, 6-b—Bidirectional hydraulic pump, 6-c—Drive wheel positioning screw, 6-d—Drive wheel positioning support, 6- e—Hydraulic pump positioning bolt, 6-f—Hydraulic pump spindle, 6-g—Drive wheel positioning main roller, 6-h—Drive wheel positioning main slide, 6-i—Drive wheel positioning friction pad, 6-j — Driving wheel clamping bolt, 6-k— driving wheel positioning auxiliary roller, 6-l— driving wheel positioning auxiliary slide, 6-m— driving wheel positioning screw nut, 6-n— driving wheel clamping nut, 6 -o—Drive wheel positioning hand wheel.

detailed description

The present invention will be further described below with reference to the embodiments in the drawings:

As shown in FIG. 1, a testing device for bearing performance of a ring-shaped steel wire rope of the present invention is mainly composed of a steel wire loading device 1, two motor driving devices 2, a number of roundabout positioning devices 3, a positioning platform 4 and a number of drives The wheel positioning device 6 is constituted, the positioning platform 4 is arranged in the horizontal direction, the wire rope loading device 1 is arranged in the horizontal direction through the positioning hole 4-a in the middle of the arc segment on the left side of the positioning platform 4, the motor drive device 2 and the roundabout The positioning device 3 is arranged radially on the left arc segment of the positioning platform 4 and symmetrically arranged on both sides of the wire rope loading device 1, and the driving wheel positioning device 6 is evenly arranged on the right of the positioning platform 4 in the radial direction through the positioning hole 4-a Side arc segment. The number of the driving wheel positioning device 6 and the roundabout wheel positioning device 3 depends on the winding radius and test accuracy of the ring-shaped steel wire rope 5 to be tested; the hole density of the positioning hole 4-a along the left and right circular arc segments must satisfy The wire rope arc formed by several driving wheel positioning devices 6 can meet the test requirements of the tested looped wire rope 5 with different winding diameters, and also meet the wire rope circle formed by the wire rope loading device 1, the motor drive device 2, and the roundabout wheel positioning device 3. The arc is equal to the winding diameter of the circular wire rope 5 to be measured.

As shown in FIG. 2, the wire rope loading device 1 is mainly composed of a hydraulic cylinder liner 1-a, a tension loading slide 1-b, a tension loading screw 1-c, a tension loading screw nut 1-d, a loading hydraulic The cylinder piston rod 1-e, the tension loading roller 1-f, the tension loading friction pad 1-g, the tension loading support table 1-h, the tension loading support 1-i and the tension loading hand wheel 1-j; The tension loading support 1-h is provided on the tension loading support 1-i, the tension loading screw 1-c, the tension loading screw nut 1-d and the tension loading hand wheel 1-j are arranged coaxially, The rotation of the tension loading hand wheel 1-j drives the rotation of the tension loading screw 1-c, which in turn pushes the tension loading screw nut 1-d to move back and forth; the tension loading slide 1-b is fixed to the tension loading screw nut 1-d , Can slide on the upper surface of the tension loading support table 1-h in the axial direction; the cylinder sleeve 1-a is arranged on the tension loading slide table 1-b in the axial direction, and the piston rod 1-e of the loading hydraulic cylinder The top end of the tension loading roller 1-f is provided with a groove on the rim of the tension loading roller 1-f, and a tension loading friction pad 1-g is installed in the groove, the tension loading friction lining 1-g is provided with rope grooves, said friction liner is a PVC or a composite material made from polyurethane.

As shown in FIG. 3, the motor drive device 2 is mainly composed of a motor screw nut 2-a, a motor main slide 2-b, a motor positioning bolt 2-c, a bidirectional motor 2-d, a motor spindle 2-e, Motor main roller 2-f, motor clamping bolt 2-g, motor friction pad 2-h, motor auxiliary roller 2-i, motor auxiliary slide 2-j, motor clamping nut 2-k, motor screw 2 -l, a motor support 2-m, a motor support table 2-n and a motor hand wheel 2-o; the motor support table 2-n is provided on the motor support 2-m, and the motor screw 2- 1. The motor screw nut 2-a and the motor hand wheel 2-o are arranged coaxially, and the rotation of the motor hand wheel 2-o drives the motor screw 2-l to rotate, thereby pushing the motor screw nut 2-a to move back and forth; The motor main slide table 2-b is fixed to the motor screw nut 2-a, and can slide on the upper surface of the motor support table 2-n in the axial direction; the motor positioning bolt 2-c separates the bidirectional motor 2-d and the motor The main roller 2-f is coaxially fixed to the motor main slide 2-b, and the bidirectional motor 2-d drives the motor main roller 2-f to rotate synchronously; the motor auxiliary slide 2-j is provided on the motor support table 2- n On the upper surface, the motor auxiliary slide 2-j is provided with a motor auxiliary roller 2-i. The axes of the motor main roller 2-f and the motor auxiliary roller 2-i are on a straight line; the motor main slider 2-b and the motor auxiliary slider 2-j are provided with collinear through holes on both sides, The motor clamping bolt 2-g passes through the through hole from one end to connect the motor main slide 2-b and the motor auxiliary slide 2-j, and at the other end is tightened by the motor clamping nut 2-k to make the motor main The roller 2-f and the motor auxiliary roller 2-i can clamp the tested circular wire rope 5 under the squeezing force; the rims of the motor main roller 2-f and the motor auxiliary roller 2-i are provided with grooves, which are installed in the grooves There is a motor friction pad 2-h, which is provided with a rope groove.

As shown in FIG. 4, the detour wheel positioning device 3 is mainly composed of a detour wheel support table 3-a, a detour wheel screw 3-b, a detour wheel screw nut 3-c, a detour wheel slide table 3-d, a detour The wheel roller 3-e, the roundabout friction pad 3-f, the roundabout wheel support 3-g, and the roundabout wheel hand wheel 3-h; the roundabout wheel support platform 3-a is provided on the roundabout wheel support 3-g On the above, the roundabout screw 3-b, the roundabout screw nut 3-c and the roundabout handwheel 3-h are arranged coaxially, and the roundabout round handwheel 3-h rotates to drive the roundabout round screw 3-b Rotate to push the roundabout screw nut 3-c to move forward and backward; the roundabout wheel slide table 3-d is fixed to the roundabout wheel screw nut 3-c and can slide on the upper surface of the roundabout wheel support table 3-a in the axial direction; The roundabout roller 3-e is disposed on the roundabout roller table 3-d, the axis of the roundabout roller 3-e is orthogonal to the axis of the roundabout screw 3-b; the rim of the roundabout roller 3-e is provided with a recess The groove and the detour wheel friction pad 3-f are installed, and the detour wheel friction pad 3-f is provided with a rope groove.

As shown in FIG. 5, the driving wheel positioning device 6 mainly includes a driving wheel positioning support 6-a, a bidirectional hydraulic pump 6-b, a driving wheel positioning screw 6-c, a driving wheel positioning support 6-d, Hydraulic pump positioning bolt 6-e, hydraulic pump spindle 6-f, drive wheel positioning main roller 6-g, drive wheel positioning main slide 6-h, drive wheel positioning friction pad 6-i, drive wheel clamping bolt 6 -j, drive wheel positioning auxiliary roller 6-k, drive wheel positioning auxiliary slide 6-l, drive wheel positioning screw nut 6-m, drive wheel clamping nut 6-n and drive wheel positioning hand wheel 6-o The drive wheel positioning support 6-a is provided on the drive wheel positioning support 6-d, the drive wheel positioning screw 6-c, the drive wheel positioning screw nut 6-m, and the drive wheel positioning hand wheel 6; -o coaxial arrangement, the rotation of the driving wheel positioning hand wheel 6-o drives the driving wheel positioning screw 6-c to rotate, thereby pushing the driving wheel positioning screw nut 6-m to move forward and backward; the driving wheel positioning main slide 6-h is fixed to the drive wheel positioning screw nut 6-m, which can slide on the upper surface of the drive wheel positioning support 6-a in the axial direction; the hydraulic pump positioning bolt 6-e will drive the bidirectional hydraulic pump 6-b and the drive Wheel positioning master The wheel 6-g is coaxially fixed to the driving wheel positioning main slide 6-h. The driving wheel positioning main roller 6-g drives the hydraulic pump main shaft 6-f to rotate synchronously; the driving wheel positioning sub-slide 6-l is provided at The upper surface of the driving wheel positioning support 6-a, the driving wheel positioning auxiliary slide 6-l is provided with a driving wheel positioning auxiliary roller 6-k, a driving wheel positioning main roller 6-g and a driving wheel positioning auxiliary roller 6-k The axis is on a straight line; the driving wheel positioning main slide 6-h and the driving wheel positioning auxiliary slide 6-l are provided with collinear through holes on both sides, and the driving wheel clamping bolt 6-j Connect the drive wheel positioning main slide 6-h and the drive wheel positioning auxiliary slide 6-l through the through hole from one end, and tighten the drive wheel clamping nut 6-n at the other end to make the drive wheel positioning main The roller 6-g and the driving wheel positioning auxiliary roller 6-k can clamp the tested annular steel rope 5 under a certain squeezing force; the driving wheel positioning main roller 6-g and the driving wheel positioning auxiliary roller 6-k are wheels The rim is provided with a groove, and a driving wheel positioning friction pad 6-i is installed in the groove, and the driving wheel positioning friction pad 6-i is provided with a rope groove.

The test method of the bearing performance of the annular steel wire rope for mining of the present invention is as follows:

(a) Install the tension loading support 1-h on the tension loading support 1-i, the tension loading screw 1-c, the tension loading screw nut 1-d and the tension loading hand wheel 1-j are installed coaxially. Fix the tension loading slide 1-b on the tension loading screw nut 1-d, the hydraulic cylinder sleeve 1-a is arranged on the tension loading slide 1-b in the axial direction, and load the tension loading friction pad 1-g Installed in the groove of the tension loading roller 1-f, the tension loading roller 1-f is installed on the top of the piston rod 1-e of the loading hydraulic cylinder, and assembled into a wire rope loading device 1;

(b) Install the motor support 2-n on the motor support 2-m, the motor screw 2-l, the motor screw nut 2-a and the motor handwheel 2-o are coaxially mounted, and the motor friction pad 2 -h is installed in the rim groove of the motor main roller 2-f and the motor auxiliary roller 2-i, and the motor positioning bolt 2-c is used to fix the bidirectional motor 2-d and the motor main roller 2-f coaxially to the motor main Slide table 2-b, motor auxiliary roller 2-i is installed on the motor auxiliary slide table 2-j, use the motor clamping bolt 2-g from one end of the slide table through the through hole to connect the motor main slide table 2-b and the motor pair The slide table 2-j is connected together, and fixed at the other end of the slide table with a motor clamping nut 2-k to assemble two motor drive devices 2;

(c) Install the roundabout wheel support table 3-a on the roundabout wheel support 3-g, the roundabout wheel screw 3-b, the roundabout wheel screw nut 3-c and the roundabout wheel hand wheel 3-h are coaxially installed, The roundabout roller table 3-d is fixed to the roundabout screw nut 3-c, and the roundabout roller 3-e is mounted on the roundabout roller table 3-d so that its axis is orthogonal to the axis of the roundabout screw 3-b, Install the tortuous wheel friction pad 3-f in the rim groove of the tortuous wheel roller 3-e to assemble four tortuous wheel positioning devices 3; the number can be increased or decreased according to actual needs, which can be 2-6.

(d) Install the driving wheel positioning support 6-a on the driving wheel positioning support 6-d, the driving wheel positioning screw 6-c, the driving wheel positioning screw nut 6-m, and the driving wheel positioning hand wheel 6- o Coaxial installation, the drive wheel positioning main slide 6-h is fixed to the drive wheel positioning screw nut 6-m, the drive wheel positioning friction pad 6-i is installed on the drive wheel positioning main roller 6-g and the drive wheel positioning In the rim groove of the auxiliary roller 6-k, the bidirectional hydraulic pump 6-b and the driving wheel positioning main roller 6-g are coaxially fixed to the driving wheel positioning main slide 6-h using the hydraulic pump positioning bolt 6-e , The drive wheel positioning auxiliary roller 6-k is installed on the drive wheel positioning auxiliary slide 6-l, and the drive wheel clamping bolt 6-j is used to pass the through hole from one end of the slide to position the drive wheel to the main slide 6-h and The driving wheel positioning sub-slide 6-l is connected together, and fixed at the other end of the sliding table with a driving wheel clamping nut 6-n, and assembled into several driving wheel positioning devices 6;

(e) Select the appropriate positioning hole 4-a on the positioning platform 4 based on the winding diameter D and the 180 ° enveloping angle of the circular wire rope 5 to be tested, and install the wire rope loading device 1 on the left side of the positioning platform 4 in the horizontal direction In the middle of the side arc segment, the motor drive device 2 and the roundabout wheel positioning device 3 are radially installed on the left arc segment of the positioning platform 4 and symmetrically arranged on both sides of the wire rope loading device 1, the drive wheel positioning device 6 passes the positioning The holes 4-a are evenly installed in the radial section on the right side of the positioning platform 4 in the radial direction, turn the tension loading hand wheel 1-j to move the tension loading screw nut 1-d forward and backward, and rotate the motor hand wheel 2-o to push the motor wire The bar nut 2-a moves back and forth, turn the roundabout wheel handwheel 3-h to push the roundabout wheel screw nut 3-c to move back and forth, turn the drive wheel positioning handwheel 6-o to drive the drive wheel positioning screw nut 6-m to move back and forth, Make the outer diameter of the tension loading roller 1-f, motor main roller 2-f and roundabout roller 3-e on the left side of the positioning platform 4 equal to the winding diameter D and the arc angle equal to the wrap angle 180 °, the diameter of the arc formed by the outer edge of the main roller 6-g on the right drive wheel is equal to the winding Diameter D, is equal to a wrap angle of the circular arc angle 180 °

(f) Turn the tension loading hand wheel 1-j to push the tension loading screw nut 1-d to contract, and insert the measured ring wire rope 5 into the tension loading friction pad 1-g, the motor friction pad 2-h, and the roundabout friction The liner 3-f and the drive wheel are positioned in the rope groove of the friction liner 6-i. Turn the tension loading hand wheel 1-j to push the tension loading screw nut 1-d to stretch until the tension loading roller 1-f is pressed Measure the ring wire rope 5 for pre-tensioning, tighten the motor clamping nut 2-k and the drive wheel clamping nut 6-n, so that the motor friction pad 2-h and the drive wheel positioning friction pad 6-i can be tightly clamped The tested annular steel wire rope 5 will not slide relative to the tested annular steel wire rope 5;

(g) adjusting the hydraulic cylinder loading 1-j and two hydraulic oil outlet of the bidirectional motor 2-d of the hydraulic oil inlet, an annular wire rope under test analog (5) on both sides of the drive wheel side load F Slack _{Slack Side} and tight rope side load F _{tight rope side} , as shown in Figure 6,

In the formula: F _{hydraulic cylinder} is the pressure applied by the tension loading roller 1-f to the measured ring wire rope 5, M is the output torque of the two-way motor 2-d, r is the radius of the motor main roller 2-f, and β is the tension loading roller The angle between the axis line of 1-f and the main roller 2-f of the motor and the horizontal direction simulates the tangential force distribution of the drive wheel of the tested ring steel rope 5 in the range of 180 ° of the wrap angle:

In the formula: B is the width of the actual friction pad of the hoist, μ is the friction coefficient of the actual friction pad,

It is the creeping arc angle in the enveloping arc under the action of the F _{tight rope side} and F _{loose rope side} , so as to obtain the tangential force f _{1 of the} main wheel 6-g of the driving wheel positioning of the tested circular wire rope 5 on the right side of the positioning platform 4 , f ₂ , f ₃ , f ₄ , f ₅ , f ₆ , f ₇ , and then adjust the oil pressure of the pressure port of the bidirectional hydraulic pump 6-b according to this, and add additional rotation damping to the main wheel 6-g of the driving wheel positioning.

In the formula: k is the compensation coefficient, r is the radius of the driving wheel positioning main roller 6-g, when the bidirectional motor 2-d drives the tested circular steel rope 5 to rotate, F _{tight rope side} = kf ₁ + kf ₂ + kf ₃ + kf ₄ + kf ₅ + kf ₆ + kf ₇ + F _{loose rope side} to simulate the winding process of the driving wheel of the actual endless wire rope in the electrodeless rope transportation system and the creep process of the wire rope in the enveloping arc of the winding process;

When it is necessary to test the tensile performance of the circular wire rope, adjust the hydraulic pressure of the oil outlet of the loading hydraulic cylinder 1-j, the oil pressure of the oil inlet of the two-way motor 2-d and the oil pressure of the oil pressure of the two-way hydraulic pump 6-b to simulate The working conditions such as overloading and jamming during the winding of the tested ring wire rope 5 start the loading hydraulic cylinder 1-j, the two-way hydraulic pump 6-b and the two-way motor 2-d in turn. Whether the change amount of the wire rope diameter is within the allowable threshold, it can be detected whether the tested ring-shaped wire rope 5 meets the tensile performance requirements;

When it is necessary to test the fatigue life of the circular wire rope, adjust the hydraulic pressure of the oil outlet of the loading hydraulic cylinder 1-j, the oil pressure of the oil inlet of the two-way motor 2-d, and the oil pressure of the oil inlet of the two-way hydraulic pump 6-b to simulate the electrodeless During the winding process of the drive wheel of the rope transportation system, the looped steel wire rope 5 is cyclically dragged. At this time, by detecting whether the percentage of broken wires and the diameter change of the tested wire rope 5 within a certain cycle period are within the allowable threshold, the detected To test whether the circular wire rope 5 meets the requirements of bearing fatigue life. At the same time, because there is no actual limit of the rope transport system, by adjusting the flow of the two-way motor 2-d and the two-way hydraulic pump 6-b, the test process can be greatly accelerated.

Claims (8)

1. A testing device for bearing performance of annular steel wire rope for mining, including wire rope loading device (1) and motor driving device (2), characterized in that it also includes a roundabout wheel positioning device (3), a positioning platform (4) and a driving wheel positioning device (6), the positioning platform (4) is arranged in a horizontal direction, the wire rope loading device (1) is arranged in a horizontal position in the middle of the left arc segment of the positioning platform (4) in the horizontal direction, and the motor driving device (2) and the roundabout wheel positioning device (3) are arranged radially on the left side arc segment of the positioning platform (4) and symmetrically arranged on both sides of the wire rope loading device (1), the drive wheel positioning device (6) ) Are evenly arranged on the right side arc segment of the positioning platform (4) in the radial direction; the positioning platform (4) has an elliptical ring shape, and a plurality of positioning holes (4-a) and positioning holes are arranged on the circumference of the elliptical ring ( 4-a) The hole density along the left and right arc sections meets the circular wire rope arc formed by multiple drive wheel positioning devices (6) to meet the test needs of winding different diameter circular wire ropes (5) to be tested, and at the same time meets the steel wire loading The circular arc of the wire rope surrounded by the device (1), the motor drive device (2) and the winding wheel positioning device (3), etc. Annular wire rope under test (5) of the winding diameter.
2. The load-bearing performance testing device for a mining endless steel wire rope according to claim 1, characterized in that the steel wire loading device (1) includes a hydraulic cylinder liner (1-a), a tension loading slide (1-b), Tension loading screw (1-c), tension loading screw nut (1-d), loading hydraulic cylinder piston rod (1-e), tension loading roller (1-f), tension loading friction pad (1-g) ), A tension loading support platform (1-h), a tension loading support (1-i) and a tension loading hand wheel (1-j); the tension loading support platform (1-h) is provided on the tension loading support ( 1-i), the tension loading screw (1-c), the tension loading screw nut (1-d) and the tension loading hand wheel (1-j) are arranged coaxially, and the tension loading hand wheel (1 -j) The rotation drives the tension loading screw (1-c) to rotate, and then pushes the tension loading screw nut (1-d) to move forward and backward; the tension loading slide (1-b) is fixed to the tension loading screw nut (1-b) 1-d), can slide on the upper surface of the tension loading support table (1-h) in the axial direction; the hydraulic cylinder liner (1-a) is arranged on the tension loading slide table (1-b) in the axial direction , The top of the piston rod (1-e) of the loading hydraulic cylinder is provided with a tension loading roller (1-f), the tension Carrier rollers (1-f) provided with a groove and a rim mounted with a tension load friction lining (1-g), said tension loading friction pad (1-g) provided with rope grooves.
3. The load-bearing performance testing device for a ring-shaped steel wire rope for mining according to claim 1, characterized in that the motor driving device (2) includes a motor screw nut (2-a), a motor main slide (2-b), Motor positioning bolt (2-c), bidirectional motor (2-d), motor spindle (2-e), motor main roller (2-f), motor clamping bolt (2-g), motor friction pad (2 -h), motor auxiliary roller (2-i), motor auxiliary slide (2-j), motor clamping nut (2-k), motor screw (2-l), motor support (2-m) , Motor support table (2-n) and motor hand wheel (2-o); the motor support table (2-n) is set on the motor support (2-m), the motor screw (2-l), The motor screw nut (2-a) and the motor hand wheel (2-o) are coaxially arranged. The rotation of the motor hand wheel (2-o) drives the rotation of the motor screw (2-l), which in turn drives the motor screw nut (2 -a) Move back and forth; the motor main slide (2-b) is fixed to the motor screw nut (2-a) and can slide on the upper surface of the motor support (2-n) in the axial direction; the motor is positioned The bolt (2-c) coaxially fixes the bidirectional motor (2-d) and the motor main roller (2-f) on the motor main slide (2-b), the bidirectional motor (2-d) drives the motor main Scroll wheel (2-f) synchronization The motor auxiliary slide (2-j) is provided on the upper surface of the motor support table (2-n), and the motor auxiliary slide (2-j) is provided with a motor auxiliary roller (2-i), the motor The axes of the main roller (2-f) and the motor auxiliary roller (2-i) are on a straight line; the motor main slide (2-b) and the motor auxiliary slide (2-j) are provided on both sides There are collinear through holes, the motor clamping bolt (2-g) passes through the through hole from one end to connect the motor main slide (2-b) and the motor auxiliary slide (2-j) together, and The other end is tightened by the motor clamping nut (2-k), so that the motor main roller (2-f) and the motor auxiliary roller (2-i) can clamp the annular steel wire rope (5) under the action of the squeezing force; the motor main roller (2-f) and the rim of the motor auxiliary roller (2-i) are provided with grooves, and motor friction pads (2-h) are installed in the grooves, and ropes are provided on the motor friction pads (2-h) groove.
4. The bearing performance testing device for a ring-shaped steel wire rope for mining according to claim 1, characterized in that the roundabout wheel positioning device (3) includes a roundabout wheel support table (3-a) and a roundabout wheel screw (3-b) , Roundabout screw nut (3-c), roundabout slide table (3-d), roundabout wheel roller (3-e), roundabout wheel friction pad (3-f), roundabout wheel support (3-g) And roundabout handwheel (3-h); the roundabout wheel support platform (3-a) is provided on the roundabout wheel support (3-g), the roundabout wheel screw (3-b), the roundabout wheel wire The bar nut (3-c) and the roundabout handwheel (3-h) are arranged coaxially, and the roundabout wheel handwheel (3-h) rotation drives the roundabout wheel screw (3-b) to rotate, thereby pushing the roundabout wheel wire The bar nut (3-c) moves back and forth; the roundabout sliding table (3-d) is fixed to the roundabout screw nut (3-c) and can slide on the upper surface of the roundabout supporting table (3-a) in the axial direction The roundabout roller (3-e) is provided on the roundabout slide table (3-d), the axis of the roundabout roller (3-e) is orthogonal to the axis of the roundabout screw (3-b); the roundabout roller (3-e) The rim of the rim is provided with a groove, and a roundabout wheel friction pad (3-f) is installed in the groove, and the roundabout wheel friction pad (3-f) is provided with a rope groove.
5. The bearing performance test device for a ring-shaped steel wire rope for mining according to claim 1, characterized in that the driving wheel positioning device (6) includes a driving wheel positioning support platform (6-a) and a bidirectional hydraulic pump (6-b) , Drive wheel positioning screw (6-c), drive wheel positioning support (6-d), hydraulic pump positioning bolt (6-e), hydraulic pump spindle (6-f), drive wheel positioning main roller (6- g), drive wheel positioning main slide (6-h), drive wheel positioning friction pad (6-i), drive wheel clamping bolt (6-j), drive wheel positioning auxiliary roller (6-k), drive Wheel positioning auxiliary slide (6-l), drive wheel positioning screw nut (6-m), drive wheel clamping nut (6-n) and drive wheel positioning hand wheel (6-o); the drive wheel positioning The support table (6-a) is provided on the driving wheel positioning support (6-d), the driving wheel positioning screw (6-c), the driving wheel positioning screw nut (6-m) and the driving wheel positioning hand The wheels (6-o) are arranged coaxially, and the rotation of the driving wheel positioning hand wheel (6-o) drives the driving wheel positioning screw (6-c) to rotate, thereby pushing the driving wheel positioning screw nut (6-m) forward and backward Move; the main sliding table (6-h) of the driving wheel positioning is fixed to the driving wheel positioning screw nut (6-m), which can be axially The upper surface of the driving wheel positioning support (6-a) slides; the hydraulic pump positioning bolt (6-e) coaxially fixes the bidirectional hydraulic pump (6-b) and the driving wheel positioning main roller (6-g) to the drive On the wheel positioning main slide (6-h), the drive wheel positioning main roller (6-g) drives the hydraulic pump spindle (6-f) to rotate synchronously; the drive wheel positioning sub-slide (6-l) is set On the upper surface of the driving wheel positioning support table (6-a), the driving wheel positioning auxiliary slide table (6-l) is provided with a driving wheel positioning auxiliary roller (6-k), and the driving wheel positioning main roller (6-g) ) And the axis of the driving wheel positioning auxiliary roller (6-k) are on a straight line; the driving wheel positioning main slide (6-h) and the driving wheel positioning auxiliary slide (6-l) are provided on both sides There is a collinear through hole, the driving wheel clamping bolt (6-j) passes through the through hole from one end to connect the driving wheel positioning main slide (6-h) with the driving wheel positioning auxiliary slide (6-l) Together, and tighten at the other end by the drive wheel clamping nut (6-n), so that the drive wheel positioning main roller (6-g) and the drive wheel positioning auxiliary roller (6-k) can be under the action of squeezing force Clamp the tested circular steel wire rope (5); the driving wheel positioning main roller (6-g) and the driving wheel positioning auxiliary roller The rim of the wheel (6-k) is provided with a groove, and a driving wheel positioning friction pad (6-i) is installed in the groove, and the driving wheel positioning friction pad (6-i) is provided with a rope groove.
6. The bearing performance testing device for a mining endless steel wire rope according to claim 1, characterized in that the number of the driving wheel positioning device (6) and the roundabout wheel positioning device (3) depends on the tested endless steel wire rope (5) Winding radius and test accuracy.
7. The test method of the bearing performance testing device for the endless steel wire rope according to any one of claims 1-6, characterized in that it includes the following steps:

   (a) Install the tension loading support (1-h) on the tension loading support (1-i), the tension loading screw (1-c), the tension loading screw nut (1-d) and the tension loading hand The wheels (1-j) are installed coaxially, and the tension loading slide (1-b) is fixed on the tension loading screw nut (1-d), and the hydraulic cylinder liner (1-a) is placed under tension loading in the axial direction On the sliding table (1-b), install the tension loading friction pad (1-g) in the groove of the tension loading roller (1-f), and the tension loading roller (1-f) is installed on the piston rod of the loading hydraulic cylinder The top of (1-e) is assembled into a wire rope loading device (1);

   (b) Install the motor support (2-n) on the motor support (2-m), motor screw (2-l), motor screw nut (2-a) and motor hand wheel (2-o) ) Coaxial installation, the motor friction pad (2-h) is installed in the rim groove of the motor main roller (2-f) and the motor auxiliary roller (2-i), and the motor positioning bolt (2-c) is used The bidirectional motor (2-d) and the motor main roller (2-f) are coaxially fixed to the motor main slide (2-b), and the motor sub-roller (2-i) is installed on the motor sub-slide (2-j) , Use the motor clamping bolt (2-g) from one end of the slide through the through hole to connect the main motor slide (2-b) and the motor auxiliary slide (2-j) together, and use it at the other end of the slide The motor clamping nut (2-k) is fixed and assembled into the motor drive device (2);

   (c) Install the roundabout wheel support (3-a) on the roundabout wheel support (3-g), the roundabout wheel screw (3-b), the roundabout wheel screw nut (3-c) and the roundabout wheel hand The wheels (3-h) are installed coaxially, the roundabout roller table (3-d) is fixed to the roundabout screw nut (3-c), and the roundabout roller (3-e) is installed on the roundabout roller table (3-d) On the top, make its axis orthogonal to the axis of the roundabout screw (3-b), install the roundabout friction pad (3-f) in the rim groove of the roundabout wheel (3-e), and assemble into Roundabout positioning device (3);

   (d) Install the driving wheel positioning support (6-a) on the driving wheel positioning support (6-d), the driving wheel positioning screw (6-c), the driving wheel positioning screw nut (6-m) Installed coaxially with the drive wheel positioning hand wheel (6-o), the drive wheel positioning main slide (6-h) is fixed to the drive wheel positioning screw nut (6-m), and the drive wheel positioning friction pad (6-m) i) Installed in the rim groove of the driving wheel positioning main roller (6-g) and the driving wheel positioning auxiliary roller (6-k), using the hydraulic pump positioning bolt (6-e) to connect the bidirectional hydraulic pump (6-b) ) And the drive wheel positioning main roller (6-g) are coaxially fixed to the drive wheel positioning main slide (6-h), and the drive wheel positioning auxiliary roller (6-k) is installed on the drive wheel positioning auxiliary slide (6-g) l) On the top, use the drive wheel clamping bolt (6-j) from one end of the slide through the through hole to connect the drive wheel positioning main slide (6-h) and the drive wheel positioning auxiliary slide (6-l) together , And use the drive wheel clamping nut (6-n) at the other end of the slide table to fix it and assemble it into the drive wheel positioning device (6);

   (e) Set the number of positioning holes (4-a) on the positioning platform (4) based on the measured winding diameter D and 180 ° wrap angle of the looped steel wire rope (5), and load a wire rope device ( 1) Install it horizontally in the middle of the left arc segment of the positioning platform (4), and install a motor drive in the radial direction on the left arc segment of the positioning platform (4) on the upper and lower sides of the wire rope loading device (1) Device (2), on the left arc segment of the positioning platform (4) next to the upper and lower two motor drive devices (2), respectively install a plurality of roundabout wheel positioning devices (3) in the radial direction; at the same time on the positioning platform (4) A plurality of driving wheel positioning devices (6) are radially installed on the right arc segment of the;

   (f) Turn the tension loading hand wheel (1-j) to push the tension loading screw nut (1-d) to move back and forth, and turn the motor hand wheel (2-o) to push the motor screw nut (2-a) to move back and forth and rotate The roundabout wheel handwheel (3-h) pushes the roundabout wheel screw nut (3-c) to move back and forth, turning the drive wheel positioning handwheel (6-o) pushes the drive wheel positioning screw nut (6-m) to move back and forth, making The outer diameter of the outer edge of the tension loading roller (1-f), motor main roller (2-f) and roundabout roller (3-e) on the left side of the positioning platform (4) is equal to the winding diameter D, circle The arc angle is equal to the surrounding angle of 180 °, and the diameter of the circular arc enclosed by the outer edge of the main drive wheel (6-g) on the right side is equal to the winding diameter D, and the arc angle is equal to the surrounding angle of 180 °;

   (g) Turn the tension-loading handwheel (1-j) to push the tension-loading screw nut (1-d) to shrink, and insert the measured ring-shaped steel wire rope (5) into the tension-loading friction pad (1-g) and motor friction lining Pad (2-h), circuit wheel friction pad (3-f) and drive wheel positioning friction pad (6-i) in the rope groove, turn the tension loading hand wheel (1-j) to push the tension loading screw The nut (1-d) is stretched until the tension loading roller (1-f) presses against the measured ring wire rope (5) for pre-tensioning, and the motor clamping nut (2-k) and the driving wheel clamping nut (6- n) Tighten, so that the motor friction pad (2-h) and the drive wheel positioning friction pad (6-i) can tightly clamp the endless steel wire rope (5) without sliding relative to the endless steel wire rope (5);

   (h) Adjust the oil pressure of the oil outlet of the loading hydraulic cylinder (1-j) and the oil pressure of the oil inlet of the two bidirectional motors (2-d) to simulate the loose rope side load F on both sides of the drive wheel _{Loose rope side} and tight rope side load F _{tight rope side} :

   

   In the formula: F _{hydraulic cylinder} is the pressure applied by the tension loading roller (1-f) to the ring wire rope (5), M is the output torque of the bidirectional motor (2-d), and r is the radius of the motor main roller (2-f) , Β is the angle between the line connecting the axis of the tension loading roller (1-f) and the motor main roller (2-f) and the horizontal direction,

   Simulate the tangential force distribution of the drive wheel of the tested circular steel wire rope (5) in the range of 180 ° envelop angle:

   

   In the formula: B is the width of the actual friction pad of the hoist, μ is the friction coefficient of the actual friction pad,

   

   It is the angle of creeping arc in the envelope arc under the action of F _{tight rope side} and F _{loose rope side} ,

   Thus, the tangential force f ₁ , f ₂ , f ₃ , f ₄ , f ₅ , f ₆ of the driving wheel positioning main roller (6-g) on the right side of the positioning platform (4) of the tested circular steel wire rope (5) is obtained , f ₇ , and adjust the oil pressure of the bidirectional hydraulic pump (6-b) accordingly, adding additional rotation damping to the main wheel (6-g) of the drive wheel:

   

   In the formula: k is the compensation coefficient, r is the radius of the main wheel (6-g) of the driving wheel positioning, when the two-way motor (2-d) drives the looped steel wire rope (5) under test, F _{tight rope side} = kf ₁ + kf ₂ + kf ₃ + kf ₄ + kf ₅ + kf ₆ + kf ₇ + F _{loose rope side} ,

   In order to simulate the actual winding process of the endless steel wire rope in the electrodeless rope transportation system, and the winding process of the steel wire rope in the surrounding arc of the winding process.
8. The test method for the bearing performance of a ring-shaped steel wire rope for mining according to any one of claims 7, characterized in that:

   When it is necessary to test the tensile performance of the circular wire rope, adjust the oil pressure of the oil outlet of the loading hydraulic cylinder (1-j), the oil pressure of the oil inlet of the two-way motor (2-d) and the pressure of the two-way hydraulic pump (6-b) The oil pressure of the oil port simulates the working conditions such as overloading and jamming during the winding of the tested circular steel rope (5), and sequentially starts the loading hydraulic cylinder (1-j), bidirectional hydraulic pump (6-b) and bidirectional motor (2 -d) At this time, by detecting whether the amount of change in the diameter of the steel wire rope under test is within the allowable threshold, it is detected whether the tested steel wire rope (5) meets the tensile performance requirements;

   When it is necessary to test the fatigue life of the circular wire rope, adjust the oil pressure of the oil outlet of the loading hydraulic cylinder (1-j), the oil pressure of the oil inlet of the two-way motor (2-d) and the oil pressure of the two-way hydraulic pump (6-b) The oil pressure at the port simulates the winding process of the drive wheel of the electrodeless rope transportation system, and the looped steel wire rope (5) to be tested is cyclically dragged. Within the allowable threshold, it is detected whether the tested circular wire rope (5) meets the requirements of bearing fatigue life. At the same time, because there is no actual limit of the ropeless transportation system, the two-way motor (2-d) and the two-way hydraulic pump (6- b) The flow rate can greatly speed up the testing process.

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