CN112798522A - Steel wire rope and friction liner multidirectional vibration test device and test method thereof - Google Patents
Steel wire rope and friction liner multidirectional vibration test device and test method thereof Download PDFInfo
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- CN112798522A CN112798522A CN202011557509.8A CN202011557509A CN112798522A CN 112798522 A CN112798522 A CN 112798522A CN 202011557509 A CN202011557509 A CN 202011557509A CN 112798522 A CN112798522 A CN 112798522A
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Abstract
The invention discloses a steel wire rope and friction liner multidirectional vibration test device and a test method thereof. The device comprises a rack, a longitudinal vibration assembly arranged on the side surface of the rack, a transverse vibration assembly arranged on the top of the rack and a friction monitoring assembly arranged on the top of the rack; the longitudinal vibration assembly, the transverse vibration assembly and the friction monitoring assembly are sequentially arranged, a roller is arranged between the longitudinal vibration assembly and the transverse vibration assembly, the longitudinal vibration assembly is connected with a steel wire rope, the steel wire rope bypasses the roller and passes through the transverse vibration assembly and the friction monitoring assembly, a friction liner is arranged on the friction monitoring assembly, and one end, far away from the longitudinal vibration assembly, of the steel wire rope is fixedly connected to the rack; the longitudinal vibration component is provided with a longitudinal vibration part which enables the steel wire rope to generate longitudinal vibration, the transverse vibration component is provided with a transverse vibration part which enables the steel wire rope to generate transverse vibration, and the steel wire rope is provided with a sensor component. The invention can provide data support for revealing the friction mechanism between the steel wire rope and the liner in a multidirectional vibration state.
Description
Technical Field
The invention relates to the field of mining machinery equipment, in particular to a steel wire rope and friction liner multidirectional vibration test device and a test method thereof.
Background
The friction type hoister is used as a key part for transporting coal from a down-hole position to an up-hole position, and the reliability of the transmission performance of the friction type hoister is directly related to the hoisting efficiency and the hoisting safety of a mine. At present, due to the increase of the mining depth of a mine and the improvement of the lifting speed, the vibration of a steel wire rope is more obvious due to the elastic characteristic, when the vibration of the steel wire rope is transmitted to a friction wheel upwards along a rope body, the contact between the steel wire rope and a friction liner is unstable, the contact state of the steel wire rope and the friction liner is directly related to the stability of the friction force, and the liner is a high polymer, so that the reaction of the viscoelastic characteristic to the vibration is complex, therefore, a vibration-friction experimental facility is needed to be researched, the friction behavior with the liner under different steel wire rope vibration parameters is tested, the vibration-friction coupling characteristic of the steel wire rope and the liner is revealed through a local western friction experiment, and a theoretical basis is provided for the development of vibration-resistant and friction-increasing high-performance liners and the design and manufacture of high.
CN111141514A discloses a friction loss experimental device and method under multi-directional vibration of a steel wire rope and a liner, which simulates the mechanism of an actual friction type elevator, and considers the multi-directional vibration of the steel wire rope, but the contact range of the steel wire rope and a friction wheel is 180 °, and the microscopic friction mechanism under vibration cannot be reflected.
CN104729987B discloses a device and a method for detecting the comprehensive friction between a steel wire rope and a friction liner for a hoist, which can simulate three motion behaviors of cross-contact high-speed sliding friction and creep friction between the steel wire rope and the steel wire rope in a winding hoist and high-speed sliding friction between the steel wire rope and the friction liner in the friction hoist under different working conditions on one test machine, and the experimental device does not consider the friction relationship between the steel wire rope and the friction liner after the steel wire rope vibrates.
CN104122198B a friction liner-hoist wire rope dynamic friction transmission test device and method, this patent can realize the friction experiment of simulation wire rope circumference vibration and radial vibration, but this device can not change the direction of wire rope radial vibration, still has a lot of deficiencies in the research process.
The problems existing in the prior art are mainly as follows: (1) the vibration of the steel wire rope in the actual friction lifting process is not considered; (2) vibration is considered, but the local vibration-friction coupling mechanism cannot be reflected or studied.
Disclosure of Invention
The invention aims to provide a steel wire rope and friction pad multidirectional vibration test device and a test method thereof, which are used for solving the problems and providing data support for revealing a friction mechanism between the steel wire rope and the pad in a multidirectional vibration state.
In order to achieve the purpose, the invention provides the following scheme:
a steel wire rope and friction liner multidirectional vibration test device comprises a rack, a longitudinal vibration assembly arranged on the side face of the rack, a transverse vibration assembly arranged at the top of the rack and a friction monitoring assembly arranged at the top of the rack;
the longitudinal vibration assembly, the transverse vibration assembly and the friction monitoring assembly are sequentially arranged in a forward direction, a roller is arranged between the longitudinal vibration assembly and the transverse vibration assembly, the longitudinal vibration assembly is connected with a steel wire rope, the steel wire rope bypasses the roller and penetrates through the transverse vibration assembly and the friction monitoring assembly, a friction liner is arranged on the friction monitoring assembly, and one end, far away from the longitudinal vibration assembly, of the steel wire rope is fixedly connected to the rack;
the longitudinal vibration component is provided with a longitudinal vibration part which enables the steel wire rope to generate longitudinal vibration, the transverse vibration component is provided with a transverse vibration part which enables the steel wire rope to generate transverse vibration, and the steel wire rope is provided with a sensor component.
Preferably, the longitudinal vibration component comprises a first bottom plate vertically and fixedly connected to the side face of the rack, the first bottom plate is far away from a first slide rail fixedly connected to one side of the rack, first limit blocks are arranged at two ends of the first slide rail, a first slide plate is slidably matched with the first slide rail, a balancing weight is fixedly connected to the bottom of the first slide plate, a first clamping block used for fixing the steel wire rope is detachably connected to the top of one side, far away from the rack, of the first bottom plate, and the longitudinal vibration part is fixedly connected to one side, far away from the rack, of the first bottom plate.
Preferably, the longitudinal vibration part comprises a first servo motor and an eccentric block fixedly connected with an output shaft of the first servo motor, and a machine body of the first servo motor is fixedly connected with the first bottom plate.
Preferably, the transverse vibration assembly comprises a second bottom plate fixedly connected to the top of the rack, a second sliding rail is fixedly connected to the side wall of the second bottom plate, the second sliding rail is arranged in parallel to the steel wire rope, a second sliding plate is in sliding fit with the second sliding rail, an arc-shaped sliding groove is formed in the second sliding plate, sliding bearings are in sliding fit with the arc-shaped sliding groove, first pressing plates are arranged on two end faces of the arc-shaped sliding groove respectively, shaft holes for mounting the sliding bearings are formed in the first pressing plates, the two first pressing plates are connected with first pressing handles through threads, a gear ring is fixedly connected with the second sliding plate, a gear is meshed with the gear ring, the gear ring and the arc-shaped sliding groove are arranged coaxially with the steel wire rope, and the gear shaft is connected with a;
a second pressing plate is fixedly connected to the side face, close to the top of the second bottom plate, of the second sliding plate, a long circular hole is formed in the second pressing plate, a second pressing handle is connected to the top of the second bottom plate, and the second pressing handle penetrates through the second pressing plate and is in threaded connection with the second bottom plate;
the side, far away from the roller, of the second sliding plate is vertically and fixedly connected with a supporting plate, the top surface of the supporting plate is fixedly connected with the transverse vibration part, and the body of the third servo motor is fixedly connected with the bottom surface of the supporting plate.
Preferably, the lateral vibration portion includes fixed connection and is in the second servo motor of backup pad top surface, second servo motor coupling has the eccentric wheel, eccentric wheel limit portion rotates and is connected with the connecting rod, the connecting rod is kept away from the one end of eccentric wheel rotates and is connected with the tight piece of second clamp, the tight piece bottom sliding fit of second clamp has the fourth slide rail, fourth slide rail fixed connection be in the backup pad top surface.
Preferably, the friction monitoring assembly comprises a third bottom plate fixedly connected to the top of the rack, a third slide rail is fixedly connected to the third bottom plate, the third slide rail is in sliding fit with a third sliding plate, a screw rod assembly is arranged at the bottom of the third sliding plate, a fourth servo motor is connected to a screw rod of the screw rod assembly in a shaft coupling mode, the fourth servo motor is fixedly connected with the third bottom plate, and screw rods of the screw rod assembly are rotatably connected to two ends of the third bottom plate;
the top surface of the third sliding plate is fixedly connected with a vertical plate, the vertical plate is fixedly connected with a fifth sliding rail, the fifth sliding rail is in sliding fit with a vertical sliding plate, the side surface, far away from the vertical plate, of the vertical sliding plate is fixedly connected with a tray, the side surface, far away from the vertical plate, of the vertical sliding plate is rotatably connected with a lower pressing wheel, the lower pressing wheel is arranged below the tray, the top surface of the third sliding plate is fixedly connected with a three-dimensional force sensor, the top of the three-dimensional force sensor is fixedly connected with a friction liner, the friction liner is arranged below the lower pressing wheel, and the steel wire rope is arranged on the upper surface of the friction.
Preferably, the sensor assembly comprises a tension sensor fixedly connected with one end, far away from the longitudinal vibration assembly, of the steel wire rope and an accelerometer fixedly connected to the steel wire rope, and the accelerometer is arranged between the transverse vibration assembly and the friction monitoring assembly.
Another preferred scheme, the sensor module include with wire rope keeps away from longitudinal vibration subassembly one end fixed connection's force sensor and sliding connection are in accelerometer on the wire rope, the accelerometer sets up between transverse vibration subassembly, the friction monitoring subassembly, the accelerometer with fixedly connected with spring between the three-dimensional force sensor, wire rope longitudinal symmetry is provided with two pulleys, accelerometer and two the pulley rotates to be connected.
A test method of a steel wire rope and friction pad multidirectional vibration test device comprises the following steps:
firstly, preparing, namely fixedly connecting one end of the steel wire rope with the longitudinal vibration assembly, wherein the steel wire rope bypasses the roller and the other end of the steel wire rope is fixedly connected with the rack through the sensor assembly;
and step two, adjusting work, namely adjusting the transverse vibration assembly to enable the vibration direction of the transverse vibration assembly to meet the test requirement, fixing the steel wire rope by penetrating the transverse vibration assembly, and adjusting the friction monitoring assembly to enable the friction liner to be in contact with the steel wire rope.
And step three, starting a test, starting the friction monitoring assembly of the longitudinal vibration part and the transverse vibration part, and obtaining friction contact and friction data between the steel wire rope and the friction liner through the sensor assembly.
The invention has the following technical effects:
according to the invention, the longitudinal vibration component is arranged to enable the steel wire rope to generate longitudinal vibration, the transverse vibration component is arranged to realize transverse vibration of the steel wire rope in different directions, the steel wire rope is provided with the accelerometer to monitor various motion states of the steel wire rope, the stress state of the steel wire rope is monitored by combining the tension sensor, the friction monitoring mechanism is provided with the tray which slides up and down, the friction force between the steel wire rope and the friction liner can be adjusted at any time, and thus test data collection of the steel wire rope in a multi-direction vibration friction state is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a left boresight structure of the present invention;
FIG. 3 is a schematic view of a portion of the enlarged structure of A in FIG. 2;
FIG. 4 is a schematic view of a portion B of FIG. 2;
FIG. 5 is a schematic view of a left side view axis structure of the lateral vibration assembly;
FIG. 6 is a schematic diagram of a right side view axis structure of the lateral vibration module;
FIG. 7 is a schematic rear view perspective view of the present invention;
fig. 8 is a partially enlarged structural diagram of C in fig. 7.
Wherein, 1 is a frame, 2 is a longitudinal vibration component, 201 is a first bottom plate, 202 is a first slide rail, 203 is a first limit block, 204 is a first sliding plate, 205 is a counterweight block, 206 is a first clamping block, 207 is a first servo motor, 208 is an eccentric block, 3 is a transverse vibration component, 301 is a second bottom plate, 302 is a second slide rail, 303 is a second sliding plate, 3031 is an arc chute, 3032 is a sliding bearing, 3033 is a support plate, 3034 is a fourth slide rail, 304 is a gear ring, 3041 is a gear, 305 is a first pressure plate, 306 is a second clamping block, 307 is a second servo motor, 3071 is an eccentric wheel, 308 is a connecting rod, 309 is a second pressure plate, 310 is a second pressure handle, 311 is a third servo motor, 312 is a first pressure handle, 4 is a friction monitoring component, 401 is a third bottom plate, 402 is a third slide rail, 403 is a lead screw component, 404 is a third sliding plate, 4041 is a fourth servo motor, 405 is a vertical plate, 406 is a three-dimensional force sensor, 4061 is a friction pad, 407 is a vertical sliding plate, 4071 is a tray, 4072 is a lower pressing wheel, 5 is a steel wire rope, 501 is a tension sensor, 502 is an accelerometer, and 6 is a roller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The first embodiment is as follows:
referring to fig. 1 to 8, the embodiment provides a multi-directional vibration test device for a steel wire rope and a friction pad, which includes a frame 1, a longitudinal vibration component 2 disposed on a side surface of the frame 1, a transverse vibration component 3 disposed on a top of the frame 1, and a friction monitoring component 4 disposed on the top of the frame 1;
the longitudinal vibration component 2, the transverse vibration component 3 and the friction monitoring component 4 are sequentially arranged in a forward direction, a roller 6 is arranged between the longitudinal vibration component 2 and the transverse vibration component 3, the longitudinal vibration component 2 is connected with a steel wire rope 5, the steel wire rope 5 bypasses the roller 6 and penetrates through the transverse vibration component 3 and the friction monitoring component 4, a friction liner 4061 is arranged on the friction monitoring component 4, and one end, far away from the longitudinal vibration component 2, of the steel wire rope 5 is fixedly connected to the rack 1;
the longitudinal vibration component 2 is provided with a longitudinal vibration part which enables the steel wire rope 5 to generate longitudinal vibration, the transverse vibration component 3 is provided with a transverse vibration part which enables the steel wire rope 5 to generate transverse vibration, and the steel wire rope 5 is provided with a sensor component.
Further optimize the scheme, longitudinal vibration subassembly 2 includes vertical fixed connection at the first bottom plate 201 of frame 1 side, the first slide rail 202 of one side fixedly connected with of frame 1 is kept away from to first bottom plate 201, first slide rail 202 both ends are provided with first stopper 203, first slide rail 202 sliding fit has first sliding plate 204, first sliding plate 204 bottom fixedly connected with balancing weight 205, the one side top that frame 1 was kept away from to first bottom plate 201 can be dismantled and be connected with the first tight piece 206 of clamp that is used for fixed wire rope 5, the one side that frame 1 was kept away from to longitudinal vibration portion fixed connection at first bottom plate 201.
In a further optimized scheme, the longitudinal vibration part comprises a first servo motor 207 and an eccentric block 208 fixedly connected with an output shaft of the first servo motor 207, and a body of the first servo motor 207 is fixedly connected with the first base plate 201.
According to a further optimized scheme, the transverse vibration component 3 comprises a second bottom plate 301 fixedly connected to the top of the rack 1, the side wall of the second bottom plate 301 is fixedly connected with a second sliding rail 302, the second sliding rail 302 is arranged in parallel with the steel wire rope 5, the second sliding rail 302 is in sliding fit with a second sliding plate 303, an arc sliding groove 3031 is formed in the second sliding plate 303, sliding bearings 3032 are in sliding fit in the arc sliding groove 3031, first pressing plates 305 are respectively arranged on two end faces of the arc sliding groove 3031, shaft holes for installing the sliding bearings 3032 are formed in the first pressing plates 305, two first pressing plates 305 are in threaded connection with first pressing handles 312, a gear ring 304 is fixedly connected to the second sliding plate 303, a gear 3041 is engaged in the gear ring 304, the gear ring 304 and the arc sliding groove 3031 are coaxially arranged with the steel wire rope 5, and a third;
the side surface of the second sliding plate 303, which is close to the top of the second bottom plate 301, is fixedly connected with a second pressing plate 309, the second pressing plate 309 is provided with a long circular hole, the top of the second bottom plate 301 is connected with a second pressing handle 310, and the second pressing handle 310 penetrates through the second pressing plate 309 to be in threaded connection with the second bottom plate 301;
a supporting plate 3033 is vertically and fixedly connected to one side of the second sliding plate 303 far away from the roller 6, a transverse vibration part is fixedly connected to the top surface of the supporting plate 3033, and the body of the third servo motor 311 is fixedly connected to the bottom surface of the supporting plate 3033.
In a further optimized scheme, the transverse vibration part comprises a second servo motor 307 fixedly connected to the top surface of the support plate 3033, the second servo motor 307 is coupled to an eccentric 3071, the edge of the eccentric 3071 is rotatably connected to a connecting rod 308, one end, far away from the eccentric 3071, of the connecting rod 308 is rotatably connected to a second clamping block 306, the bottom of the second clamping block 306 is in sliding fit with a fourth sliding rail 3034, and the fourth sliding rail 3034 is fixedly connected to the top surface of the support plate 3033.
According to a further optimized scheme, the friction monitoring assembly 4 comprises a third bottom plate 401 fixedly connected to the top of the rack 1, a third sliding rail 402 is fixedly connected to the third bottom plate 401, the third sliding rail 402 is in sliding fit with a third sliding plate 404, a screw rod assembly 403 is arranged at the bottom of the third sliding plate 404, a fourth servo motor 4041 is connected to a screw rod shaft of the screw rod assembly 403, the fourth servo motor 4041 is fixedly connected with the third bottom plate 401, and screw rods of the screw rod assembly 403 are rotatably connected to two ends of the third bottom plate 401;
third sliding plate 404 top surface fixedly connected with riser 405, the vertical fixedly connected with fifth slide rail of riser 405, fifth slide rail sliding fit has vertical slide 407, vertical slide 407 keeps away from the side fixedly connected with tray 4071 of riser 405, vertical slide 407 keeps away from the side rotation of riser 405 and is connected with down pinch roller 4072, down pinch roller 4072 sets up in tray 4071 below, third sliding plate 404 top surface fixedly connected with three-dimensional force sensor 406, three-dimensional force sensor 406 top is fixed with friction pad 4061 fixed connection, friction pad 4061 sets up in pinch roller 4072 below, wire rope 5 contact sets up at the friction pad 4061 upper surface.
In a further optimized scheme, the sensor assembly comprises a tension sensor 501 fixedly connected with one end of the steel wire rope 5 far away from the longitudinal vibration assembly 2 and an accelerometer 502 fixedly connected on the steel wire rope 5, and the accelerometer 502 is arranged between the transverse vibration assembly 3 and the friction monitoring assembly 4.
A test method of a steel wire rope and friction pad multidirectional vibration test device comprises the following steps:
firstly, preparation work is carried out, one end of a steel wire rope 5 is fixedly connected with a first sliding plate 204 on a longitudinal vibration component 2 through a first clamping block 206, the steel wire rope 5 bypasses a roller 6, and the other end of the steel wire rope is fixedly connected with a rack 1 through a tension sensor 501 of a sensor component;
and step two, adjusting the transverse vibration component 3, controlling the third servo motor 311 to rotate so as to drive the gear 3041 to rotate, so that the vibration direction of the second clamping block 306 can be adjusted within 0-90 degrees, the vibration direction of the transverse vibration component 3 meets the vibration angle required by the test, enabling the steel wire rope 5 to penetrate through the transverse vibration component 3, fixing the steel wire rope 5 and the second clamping block 306 through the second clamping block 306, and adjusting the friction monitoring component 4 so as to enable the friction pad 4061 to be in contact with the steel wire rope 5.
Step three, starting the test, starting the first servo motor 207 of the longitudinal vibration part, the second servo motor 307 of the transverse vibration part and the fourth servo motor 4041 of the friction monitoring component 4, the first servo motor 207 driving the eccentric block 208 to rotate to apply longitudinal vibration to the steel wire rope 5, the second servo motor 307 driving the eccentric wheel 3071 to rotate, the eccentric wheel 3071 driving the connecting rod 308 to move, so that the second clamping block 306 generates transverse vibration and transmits the transverse vibration to the steel wire rope 5, the vibration data of the steel wire rope 5 is measured by the accelerometer 502, the pretightening force data of the steel wire rope 5 is measured by the tension sensor 501, the fourth servo motor 4041 is controlled to rotate in a reciprocating manner, so that the third sliding plate 404 drives the friction pad 4061 and the lower pressing wheel 4072 to reciprocate along the steel wire rope 5, and the weight with fixed weight is added on the tray 4071, so that the lower pressing wheel 4072 presses the steel wire rope 5 downwards to provide positive pressure for the, the data of the friction contact and the friction between the steel wire rope 5 and the friction pad 4061 under the multi-directional vibration are measured by the three-dimensional force sensor 406. And experimental research data are provided for the friction behavior of the steel wire rope and the friction liner in a multidirectional vibration state.
Example two:
the experimental device of the embodiment is different from the first embodiment only in that the sensor assembly comprises a tension sensor 501 fixedly connected with one end of the steel wire rope 5 far away from the longitudinal vibration assembly 2 and an accelerometer 502 connected to the steel wire rope 5 in a sliding manner, the accelerometer 502 is arranged between the transverse vibration assembly 3 and the friction monitoring assembly 4, a spring is fixedly connected between the accelerometer 502 and the three-dimensional force sensor 406, two pulleys are symmetrically arranged on the steel wire rope 5 from top to bottom, and the accelerometer 502 is rotatably connected with the two pulleys.
The structure of this embodiment can realize the test of the mechanical properties and mechanical parameters under the relative sliding state of the steel wire rope 5 and the friction pad 4061.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The utility model provides a multidirectional vibration test device of wire rope and friction liner which characterized in that: the device comprises a rack (1), a longitudinal vibration component (2) arranged on the side surface of the rack (1), a transverse vibration component (3) arranged on the top of the rack (1) and a friction monitoring component (4) arranged on the top of the rack (1);
the longitudinal vibration component (2), the transverse vibration component (3) and the friction monitoring component (4) are sequentially arranged in a forward direction, a roller (6) is arranged between the longitudinal vibration component (2) and the transverse vibration component (3), the longitudinal vibration component (2) is connected with a steel wire rope (5), the steel wire rope (5) bypasses the roller (6) and penetrates through the transverse vibration component (3) and the friction monitoring component (4) to be arranged, a friction liner (4061) is arranged on the friction monitoring component (4), and one end, far away from the longitudinal vibration component (2), of the steel wire rope (5) is fixedly connected to the rack (1);
the longitudinal vibration component (2) is provided with a longitudinal vibration part which enables the steel wire rope (5) to generate longitudinal vibration, the transverse vibration component (3) is provided with a transverse vibration part which enables the steel wire rope (5) to generate transverse vibration, and the steel wire rope (5) is provided with a sensor component.
2. The multi-directional vibration test device for the steel wire rope and the friction pad as recited in claim 1, wherein: the longitudinal vibration component (2) comprises a first bottom plate (201) which is vertically and fixedly connected to the side face of the rack (1), the first bottom plate (201) is far away from a first sliding rail (202) fixedly connected to one side of the rack (1), two ends of the first sliding rail (202) are provided with first limiting blocks (203), the first sliding rail (202) is in sliding fit with a first sliding plate (204), the bottom of the first sliding plate (204) is fixedly connected with a balancing weight (205), the top of one side, far away from the rack (1), of the first bottom plate (201) is detachably connected with a first clamping block (206) used for fixing the steel wire rope (5), and the longitudinal vibration part is fixedly connected to one side, far away from the rack (1), of the first bottom plate (201).
3. The multi-directional vibration test device for the steel wire rope and the friction pad as claimed in claim 2, wherein: the longitudinal vibration part comprises a first servo motor (207) and an eccentric block (208) fixedly connected with an output shaft of the first servo motor (207), and a machine body of the first servo motor (207) is fixedly connected with the first base plate (201).
4. The multi-directional vibration test device for the steel wire rope and the friction pad as recited in claim 1, wherein: the transverse vibration component (3) comprises a second bottom plate (301) fixedly connected to the top of the rack (1), a second sliding rail (302) is fixedly connected to the side wall of the second bottom plate (301), the second sliding rail (302) is arranged in parallel with the steel wire rope (5), a second sliding plate (303) is in sliding fit with the second sliding rail (302), an arc sliding groove (3031) is formed in the second sliding plate (303), a sliding bearing (3032) is in sliding fit with the arc sliding groove (3031), first pressing plates (305) are respectively arranged on two end faces of the arc sliding groove (3031), shaft holes used for mounting the sliding bearing (3032) are formed in the first pressing plates (305), a first pressing handle (312) is connected to the two first pressing plates (305) through threads, a gear ring (304) is fixedly connected to the second sliding plate (303), and a gear (3041) is engaged in the gear ring (304), the gear ring (304), the arc-shaped sliding groove (3031) and the steel wire rope (5) are coaxially arranged, and the gear (3041) is axially connected with a third servo motor (311);
the second pressing plate (309) is fixedly connected to the side face, close to the top, of the second bottom plate (301), of the second sliding plate (303), a long circular hole is formed in the second pressing plate (309), a second pressing handle (310) is connected to the top of the second bottom plate (301), and the second pressing handle (310) penetrates through the second pressing plate (309) to be in threaded connection with the second bottom plate (301);
one side, far away from the roller (6), of the second sliding plate (303) is vertically and fixedly connected with a supporting plate (3033), the top surface of the supporting plate (3033) is fixedly connected with the transverse vibrating part, and a machine body of the third servo motor (311) is fixedly connected with the bottom surface of the supporting plate (3033).
5. The multi-directional vibration test device for the steel wire rope and the friction pad as claimed in claim 4, wherein: the transverse vibration part comprises a second servo motor (307) fixedly connected to the top surface of the supporting plate (3033), an eccentric wheel (3071) is connected to the second servo motor (307) in a shaft connection mode, the edge part of the eccentric wheel (3071) is rotatably connected with a connecting rod (308), one end, far away from the eccentric wheel (3071), of the connecting rod (308) is rotatably connected with a second clamping block (306), a fourth sliding rail (3034) is slidably matched with the bottom of the second clamping block (306), and the fourth sliding rail (3034) is fixedly connected to the top surface of the supporting plate (3033).
6. The multi-directional vibration test device for the steel wire rope and the friction pad as recited in claim 1, wherein: the friction monitoring assembly (4) comprises a third bottom plate (401) fixedly connected to the top of the rack (1), a third sliding rail (402) is fixedly connected to the third bottom plate (401), a third sliding plate (404) is in sliding fit with the third sliding rail (402), a lead screw assembly (403) is arranged at the bottom of the third sliding plate (404), a fourth servo motor (4041) is connected to a lead screw shaft of the lead screw assembly (403) in a shaft-to-shaft mode, the fourth servo motor (4041) is fixedly connected with the third bottom plate (401), and lead screws of the lead screw assembly (403) are rotatably connected to two ends of the third bottom plate (401);
the top surface of the third sliding plate (404) is fixedly connected with a vertical plate (405), the vertical plate (405) is vertically and fixedly connected with a fifth sliding rail, the fifth sliding rail is in sliding fit with a vertical sliding plate (407), the side surface, far away from the vertical plate (405), of the vertical sliding plate (407) is fixedly connected with a tray (4071), the side surface, far away from the vertical plate (405), of the vertical sliding plate (407) is rotatably connected with a lower pressing wheel (4072), the lower pressing wheel (4072) is arranged below the tray (4071), the top surface of the third sliding plate (404) is fixedly connected with a three-dimensional force sensor (406), the top of the three-dimensional force sensor (406) is fixedly connected with the friction pad (4061), the friction pad (4061) is arranged below the lower pressing wheel (4072), and the steel wire rope (5) is arranged on the upper surface of the friction pad (4061) in a.
7. The multi-directional vibration test device for the steel wire rope and the friction pad as recited in claim 1, wherein: the sensor assembly comprises a tension sensor (501) fixedly connected with one end of the longitudinal vibration assembly (2) far away from the steel wire rope (5) and an accelerometer (502) fixedly connected to the steel wire rope (5), and the accelerometer (502) is arranged between the transverse vibration assembly (3) and the friction monitoring assembly (4).
8. The multi-directional vibration test device for the steel wire rope and the friction pad as claimed in claim 6, wherein: the sensor assembly comprises a tension sensor (501) fixedly connected with one end of the longitudinal vibration assembly (2) and a steel wire rope (5), the tension sensor is connected with an accelerometer (502) on the steel wire rope (5) in a sliding mode, the accelerometer (502) is arranged between the transverse vibration assembly (3) and the friction monitoring assembly (4), the accelerometer (502) is fixedly connected with springs between the three-dimensional force sensors (406), two pulleys are symmetrically arranged on the steel wire rope (5) in an up-and-down mode, and the accelerometer (502) is rotationally connected with the pulleys.
9. The method for testing the multi-directional vibration test device of the steel wire rope and the friction pad according to any one of claims 1 to 8, wherein: the method comprises the following steps:
firstly, preparing, namely fixedly connecting one end of a steel wire rope (5) with the longitudinal vibration component (2), wherein the steel wire rope (5) bypasses the roller (6), and the other end of the steel wire rope is fixedly connected with the rack (1) through the sensor component;
and step two, adjusting work, namely adjusting the transverse vibration component (3), enabling the vibration direction of the transverse vibration component (3) to meet the test requirement, fixing the steel wire rope (5) through the transverse vibration component (3), adjusting the friction monitoring component (4), and enabling the friction liner (4061) to be in contact with the steel wire rope (5).
And step three, starting a test, starting the longitudinal vibration part, the transverse vibration part and the friction monitoring component (4), and obtaining friction contact and friction data between the steel wire rope (5) and the friction pad (4061) through the sensor component.
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| CN114354482A (en) * | 2021-11-25 | 2022-04-15 | 中国矿业大学 | Device and method for monitoring damage of steel wire rope-wheel groove roller and sliding friction coupling |
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| CN112798522B (en) | 2022-07-26 |
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