A wire rope electromagnetic monitoring device installed on a drum rope guide

Abstract

The present invention relates to an electromagnetic monitoring device for a wire rope installed on a drum rope guide. The main purpose is to solve the technical problems that the existing wire rope monitoring device cannot completely detect the stress state of the entire wire rope in the service working state. The technical solution of the present invention is: an electromagnetic monitoring device for a wire rope installed on a drum rope guide, which includes an outer protection box, two wire rope guides, two wing plates, four micro-electro-hydraulic push rods, three permanent magnets, a position encoder, a magnetic induction sensor, an electromagnetic detector body and a support frame; one end of the two wing plates is respectively arranged in the middle of the upper part of the outer side surfaces of the left and right panels of the outer protection box, the two wire rope guides, two wing plates, four micro-electro-hydraulic push rods, three permanent magnets, a position encoder, a magnetic induction sensor, and an electromagnetic detector body are arranged in the outer protection box, and the two wire rope guides are respectively arranged on the outer sides of the upper and lower panels of the outer protection box.

Description

Technical Field

[0001] The invention belongs to the technical field of lifting machinery, and in particular relates to a steel wire rope electromagnetic monitoring device installed on a drum rope guide. Background Art

[0002] Wire rope is the most commonly used traction flexible component in lifting machinery. Due to the large tensile load, it is also subject to adverse effects such as bending, extrusion, and torsion. During long-term use, it is repeatedly wound in and out of the rope groove of the drum. When the number of stress cycles reaches a certain value, the outer steel wire breaks and gradually expands and extends. When the number of broken wires exceeds the limit specified by the standard, it should be scrapped. Otherwise, the wire rope may break suddenly, causing major production safety accidents.

[0003] With the development trend of large-scale, high-speed and dual-carbonization, the steel wire ropes currently in service are still in the offline, short-range and lossy test and detection stage. For example, the detection of single data of wire rope damage or tension, the means of real-time non-destructive monitoring are still imperfect, and it is even more impossible to quickly and efficiently solve the defects of the detection channel that reasonably matches the diameter of the wire rope. Therefore, the existing wire rope monitoring device cannot completely detect the stress state of the entire wire rope in the service working state and cannot quickly and efficiently solve the defects of the detection channel that reasonably matches the diameter of the wire rope. In view of the above reasons, it is urgently needed to develop a non-contact, real-time online, full-process non-destructive electromagnetic detection device for wire ropes. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems that the existing wire rope monitoring devices cannot completely detect the stress state of the entire wire rope under service working conditions and cannot quickly and efficiently solve the detection channel that reasonably matches the diameter of the wire rope, and to provide a wire rope electromagnetic monitoring device installed on a drum rope guide.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A wire rope electromagnetic monitoring device installed on a reel rope guide, comprising an outer protection box (2), two wire rope guides, two wing plates (5), four micro-electrohydraulic push rods, three permanent magnets, a position encoder (9), a magnetic induction sensor (10), an electromagnetic detector body (11) and a support frame (12); one end of the two wing plates (5) are respectively arranged in the middle of the upper part of the outer side surfaces of the left and right panels of the outer protection box (2); one end of a first micro-electrohydraulic push rod (7.1) is connected to the middle part of the inner wall of the rear panel of the outer protection box (2); the other end of the first micro-electrohydraulic push rod (7.1) is connected to the first permanent magnet (8.1); one end of a second micro-electrohydraulic push rod (7.2) is connected to the middle part of the inner wall of the left side panel of the outer protection box (2); the other end of the second micro-electrohydraulic push rod (7.2) is connected to the second permanent magnet (8.2); one end of a third micro-electrohydraulic push rod (7.3) is connected to the inner wall of the front panel of the outer protection box (2); The third micro-electro-hydraulic push rod (7.3) is connected to the middle of the outer protection box (2), the other end of the third micro-electro-hydraulic push rod (7.3) is connected to the third permanent magnet (8.3), the fourth micro-electro-hydraulic push rod (7.4) is mounted on one end of the support frame (12), the end of the fourth micro-electro-hydraulic push rod (7.4) away from the electromagnetic detection body (11) is provided with a position encoder (9) and a magnetic induction sensor (10), and the position encoder (9) is located above the magnetic induction sensor (10), the other end of the support frame (12) is connected to the middle of the inner wall of the front panel of the outer protection box (2) and is located on the right side of the third micro-electro-hydraulic push rod (7.3), the electromagnetic detector body (11) is mounted on the middle of the inner wall of the right panel of the outer protection box (2) and is electrically connected to the magnetic induction sensor (10) and is located on the same horizontal line, the two wire rope guides are respectively arranged on the outer side surfaces of the upper and lower panels of the outer protection box (2) and the guide pulley (4) of the wire rope guide is located at the guide rope hole set in the upper and lower panels.

[0007] Furthermore, the wire rope guide is composed of a support rod (3) and a guide pulley (4), wherein the guide pulley (4) is arranged at the front end of the support rod (3), and the rear end of the support rod (3) is connected to the outer side surfaces of the upper and lower panels of the outer protection box (2) and is located on one side of the guide rope hole arranged on the upper and lower panels.

[0008] The beneficial effects of the present invention are:

[0009] The permanent magnet used in the present invention magnetizes the wire rope without contacting each other; the monitoring device can realize the whole-course real-time nondestructive detection of the designated area or key area of ​​the whole wire rope and determine the position and quantity of broken wires; the telescopic function of the micro-electro-hydraulic push rod avoids the frequent replacement of the wire rope detection channel; the guide pulley can ensure the smooth entry and exit of the wire rope in the detection port; and the service status detection of the horizontal wire rope in the non-working state can also be realized. The technical problems that the existing wire rope monitoring device cannot completely detect the stress state of the whole wire rope in the service working state and cannot quickly and efficiently solve the detection channel that reasonably matches the diameter of the wire rope are solved. Compared with the background technology, the present invention has the advantages of not only being able to rely on electromagnetic detection to detect the service status of the whole wire rope (broken wire, twisting, etc.), but also being able to conveniently detect wire ropes of various diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a front view of the present invention;

[0011] Figure 2 yes Figure 1 Right view of;

[0012] Figure 3 yes Figure 2 A in the figure is the section view of A;

[0013] Figure 4 yes Figure 3 B in the figure is section B;

[0014] Figure 5 yes Figure 3 C in the figure is the C section view;

[0015] Figure 6 It is a usage state diagram of the present invention;

[0016] Figure 7 It is the use and installation diagram of the present invention;

[0017] In the figure: 1-wire rope electromagnetic monitoring device, 2-outer protection box, 3-support rod, 4-guide pulley, 5-wing plate, 6-rope guide, 7.1-first micro electro-hydraulic push rod, 7.2-second micro electro-hydraulic push rod, 7.3-third micro electro-hydraulic push rod, 7.4-fourth micro electro-hydraulic push rod, 8.1-first permanent magnet, 8.2-second permanent magnet, 8.3-third permanent magnet, 9-position encoder, 10-magnetic induction sensor, 11-electromagnetic detector body, 12-support frame, 13-rope guide limiter, 14-reel, 15-reel working platform, 16-nut-screw mechanism, 17-wire rope. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 to Figure 5 As shown, in this embodiment, a wire rope electromagnetic monitoring device installed on a drum rope guide comprises an outer protection box 2, two wire rope guides, two wing plates 5, four micro-electro-hydraulic push rods, three permanent magnets, a position encoder 9, a magnetic induction sensor 10, an electromagnetic detector body 11 and a support frame 12; one end of the two wing plates 5 are respectively arranged in the middle of the upper part of the outer side surfaces of the left and right panels of the outer protection box 2, one end of the first micro-electro-hydraulic push rod 7.1 is connected to the middle part of the inner wall of the rear panel of the outer protection box 2, the other end of the first micro-electro-hydraulic push rod 7.1 is connected to the first permanent magnet 8.1, one end of the second micro-electro-hydraulic push rod 7.2 is connected to the middle part of the inner wall of the left side panel of the outer protection box 2, the other end of the second micro-electro-hydraulic push rod 7.2 is connected to the second permanent magnet 8.2, and one end of the third micro-electro-hydraulic push rod 7.3 is connected to the outer protection box 2 The third micro-electro-hydraulic push rod 7.3 is connected to the middle of the inner wall of the front panel, the other end of the third micro-electro-hydraulic push rod 7.3 is connected to the third permanent magnet 8.3, the fourth micro-electro-hydraulic push rod 7.4 is installed at one end of the support frame 12, the fourth micro-electro-hydraulic push rod 7.4 is provided with a position encoder 9 and a magnetic induction sensor 10 at one end away from the electromagnetic detection body 11, and the position encoder 9 is located above the magnetic induction sensor 10, the other end of the support frame 12 is connected to the middle of the inner wall of the front panel of the outer protection box 2 and is located on the right side of the third micro-electro-hydraulic push rod 7.3, the electromagnetic detector body 11 is installed in the middle of the inner wall of the right panel of the outer protection box 2 and is electrically connected to the magnetic induction sensor 10 and is located on the same horizontal line, the two wire rope guides are respectively arranged on the outer side surfaces of the upper and lower panels of the outer protection box 2 and the guide pulley 4 of the wire rope guide is located at the guide rope hole set in the upper and lower panels. The center of the upper and lower panels of the outer protection box 2 is provided with a guide rope hole; the first to fourth micro-electro-hydraulic push rods are WDYT micro-electro-hydraulic push rods; the first to third permanent magnets are rare earth permanent magnets.

[0020] The wire rope guide is composed of a support rod 3 and a guide pulley 4. The guide pulley 4 is arranged at the front end of the support rod 3. The rear end of the support rod 3 is connected to the outer side surfaces of the upper and lower panels of the outer protection box 2 and is located on one side of the guide rope hole set in the upper and lower panels.

[0021] Working principle of the present invention:

[0022] like Figure 6 and Figure 7As shown, the present invention is installed on the rope guide 6 through two wing plates 5, and the wire rope 17 enters the outer protection box 2 from the entrance of the rope guide hole. Under the premise that its performance is not damaged, the wire rope is magnetized to saturation and generates a magnetic field through three permanent magnets. After the magnetic induction sensor 10 detects the leakage of the wire rope 17, it transmits the output electrical signal to the data processing unit of the electromagnetic detector body 11 for processing, and then the electromagnetic detector body 11 transmits the processed information to the computer, and the total number of pulses detected by the position encoder 9 is also transmitted to the computer. The computer draws a three-dimensional coordinate diagram of the time and position of all detection points, allowing inspectors to find the broken wire position more accurately. The present invention is installed on the drum rope guide 6 and moves with it, performs real-time detection of the entire wire rope, and transmits it to the computer for storage through network communication in a wireless manner, which is beneficial for special inspection agencies to conduct secondary confirmation of the precise position and quantity of broken wires and historical data comparison and analysis of the service status of the wire rope.

Claims

1. A wire rope electromagnetic monitoring device installed on a drum rope guide, characterized in that: The invention comprises an outer protection box (2), two wire rope guides, two wing plates (5), four micro-electro-hydraulic push rods, three permanent magnets, a position encoder (9), a magnetic induction sensor (10), an electromagnetic detector body (11) and a support frame (12); one end of the two wing plates (5) are respectively arranged in the middle of the upper part of the outer side surfaces of the left and right panels of the outer protection box (2); one end of the first micro-electro-hydraulic push rod (7.1) is connected to the middle part of the inner wall of the rear panel of the outer protection box (2); the other end of the first micro-electro-hydraulic push rod (7.1) is connected to the first permanent magnet (8.1); one end of the second micro-electro-hydraulic push rod (7.2) is connected to the middle part of the inner wall of the left side panel of the outer protection box (2); the other end of the second micro-electro-hydraulic push rod (7.2) is connected to the second permanent magnet (8.2); one end of the third micro-electro-hydraulic push rod (7.3) is connected to the middle part of the inner wall of the front panel of the outer protection box (2); The other end of the electro-hydraulic push rod (7.3) is connected to the third permanent magnet (8.3), the fourth micro electro-hydraulic push rod (7.4) is mounted on one end of the support frame (12), the end of the fourth micro electro-hydraulic push rod (7.4) away from the electromagnetic detection body (11) is provided with a position encoder (9) and a magnetic induction sensor (10), and the position encoder (9) is located above the magnetic induction sensor (10), the other end of the support frame (12) is connected to the middle of the inner wall of the front panel of the outer protection box (2) and is located on the right side of the third micro electro-hydraulic push rod (7.3), the electromagnetic detector body (11) is mounted on the middle of the inner wall of the right panel of the outer protection box (2) and is electrically connected to the magnetic induction sensor (10) and is located on the same horizontal line, the two wire rope guides are respectively arranged on the outer side surfaces of the upper and lower panels of the outer protection box (2), and the guide pulley (4) of the wire rope guide is located at the guide rope hole set in the upper and lower panels.

2. The electromagnetic monitoring device for a steel wire rope installed on a rope guide drum according to claim 1, characterized in that: The wire rope guide is composed of a support rod (3) and a guide pulley (4), wherein the guide pulley (4) is arranged at the front end of the support rod (3), and the rear end of the support rod (3) is connected to the outer side surfaces of the upper and lower panels of the outer protection box (2) and is located on one side of the guide rope hole arranged on the upper and lower panels.

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