Online monitoring device for main hoisting steel wire rope

Abstract

The utility model relates to an on-line monitoring device for a main hoisting steel wire rope, which comprises a pressure sensor, the pressure sensor is connected with a rotating frame, the rotating frame is rotatably connected with a tensioning wheel, the steel wire rope is supported on the tensioning wheel, the pressure sensor is electrically connected with a signal transmitter, the signal transmitter is connected with a signal receiver, and the signal receiver is electrically connected with the signal transmitter. The signal receiver is electrically connected with an upper detection device, a weak magnetic detection mechanism is installed on the steel wire rope, the weak magnetic detection mechanism comprises a bottom frame, a magnetic field planner and a weak magnetic detector, the magnetic field planner and the weak magnetic detector are installed on the bottom frame, a vertical rod is hinged to the bottom frame, and the magnetic field planner and the weak magnetic detector are installed on the vertical rod through telescopic assemblies. The steel wire rope online detection device can perform online detection on wire breakage and corrosion of the steel wire rope under the condition of normal operation of the steel wire rope, and has the characteristics of high sensitivity, good reliability, simple structure, convenience in installation and maintenance and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of coal transportation, in particular to the field of wire rope safety detection, and specifically refers to an online monitoring device for a main hoisting wire rope. Background Art

[0002] Coal is an important basic energy source in my country. Steel wire ropes are widely used in coal mine hoisting and transportation systems due to their strong carrying capacity, good flexibility, and light weight. However, due to the working environment and usage intensity, long-term use may cause wire breakage, wear, corrosion, fatigue, and other phenomena, which may lead to safety hazards such as sudden rope breakage. Therefore, effective monitoring of the health status of steel wire ropes is of great significance to ensure coal mine safety.

[0003] The current status of existing domestic technology is that most users do not use instruments for detection, but only rely on regular inspections by personnel. Damage to wire ropes cannot be discovered in time, which seriously affects equipment operation and personal safety. For a long time, the management of wire ropes has been in an embarrassing situation of "paying attention but without effective means". Manual visual inspection, caliper measurement, rope replacement based on experience, and feeling have to be adopted. There are four major problems such as "unreliable, unsafe, uneconomical, and inefficient". It is urgent to use advanced management and technical means to strengthen the detection, load-bearing capacity assessment, and safety management of wire ropes, and to ensure the safe operation of wire ropes through advanced online devices. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides an online monitoring device for a main hoisting steel wire rope, which can perform online detection of wire breakage and rust of the steel wire rope when the steel wire rope is operating normally, and has the characteristics of high sensitivity, good reliability, simple structure, and easy installation and maintenance.

[0005] The utility model is realized through the following technical scheme, which provides an online monitoring device for a main lifting wire rope, including a pressure sensor, wherein the pressure sensor is connected to a rotating frame, the rotating frame is rotatably connected to a tensioning wheel, the wire rope is supported on the tensioning wheel, the pressure sensor is electrically connected to a signal transmitter, the signal transmitter is connected to a signal receiver, the signal receiver is electrically connected to an upper detection device, a weak magnetic detection mechanism is installed on the wire rope, the weak magnetic detection mechanism includes a base frame and a magnetic field planner and a weak magnetic detector installed on the base frame, a vertical rod is hinged on the base frame, and the magnetic field planner and the weak magnetic detector are installed on the vertical rod through a telescopic component; a plurality of sprayers are installed on the base frame, the plurality of sprayers face the wire rope, the sprayers are connected to a paint tank through a pump body, and the pump body is electrically connected to the upper detection device.

[0006] The utility model can carry out real-time dynamic monitoring of wire rope tension changes by setting up collection transmitters, signal receivers, pressure sensors and other equipment, improve the efficiency, reliability and safety of mine hoists, and use weak magnetic detection technology to collect wire rope fatigue, rust, wear, diameter shrinkage and other damage information in real time. The upper detection equipment analyzes and processes these data to form a wire rope damage detection report, providing scientific and effective data support for the management of mine hoisting wire ropes. The magnetic field planner and the weak magnetic detector can adjust their positions through telescopic components as needed, which is convenient for installation. At the same time, when a problem occurs with the wire rope, the wire rope may move a certain distance due to inertia. The upper detection equipment transmits the signal to the pump body, and the pump body sprays the liquid in the paint tank on the wire rope through the sprayer, which is convenient for maintenance personnel to quickly confirm the maintenance position and improve work efficiency.

[0007] As an optimization, the telescopic assembly includes a connecting block, the vertical rod is provided with a plurality of mounting holes arranged in the vertical direction, the connecting block is connected to the vertical rod by bolts passing through the mounting holes, a cross bar is slidably connected to the connecting block in the horizontal direction, and the magnetic field planner and the weak magnetic detector are installed on the cross bar. The setting of this optimization scheme can adjust the distance between the magnetic field planner and the weak magnetic detector according to the demand. When the weak magnetic detection mechanism is installed at the inclined position of the wire rope, the vertical rod can be rotated to be parallel to the wire rope, and the wire rope can still pass through the center position of the magnetic field planner and the weak magnetic detector in sequence by adjusting the extension distance of the cross bar.

[0008] As an optimization, the upper section of the vertical rod is connected to two pulling ropes, and the lower ends of the two pulling ropes are respectively connected to the left and right ends of the base. According to the setting of this optimization scheme, the pulling rope can be wound and fastened on the base frame according to the bending degree of the support rod, which can prevent the vertical rod from tilting due to external force.

[0009] As an optimization, support wheels are respectively installed on the upper and lower sides of the tension wheel, and the wire rope is supported on the support wheels. The setting of this optimization scheme can ensure that the tension wheel can feel the pressure of the wire rope.

[0010] As an optimization, a slide block is installed on the connecting block, the cross bar passes through the slide block and is slidably connected to the slide block in the left-right direction, and two fastening bolts are threadedly connected to the slide block, and the fastening bolts extend to the cross bar, and the two fastening bolts extend in the up-down direction and the front-back direction respectively. The setting of this optimization scheme facilitates the sliding of the cross bar, and tightening the two fastening bolts at the same time can conveniently fix the cross bar to prevent the cross bar from sliding again.

[0011] As an optimization, a side plate extending in the up-down direction is installed on the base frame, the wire rope is located in front of the side plate, and the sprayer is installed on the side plate. The setting of this optimization scheme facilitates the installation of the sprayer.

[0012] As an optimization, a camera is provided at the installation location of the weak magnetic detection mechanism, and the camera is electrically connected to the upper detection equipment. The setting of this optimization scheme can observe the situation of the weak magnetic detection mechanism through the camera, which is convenient for confirming whether the weak magnetic detection mechanism is operating in a normal position.

[0013] The beneficial effects of the utility model are as follows: in terms of economic benefits, the utility model improves the inherent safety of the equipment, thereby reducing the equipment downtime caused by wire rope failure and further improving production efficiency; through real-time monitoring, the load-bearing capacity and service life of the wire rope can be more accurately evaluated, so as to formulate a more reasonable replacement plan and reduce the cost of use; the use of the utility model can reduce the need for manual inspection and save human resources, and at the same time, due to its automated characteristics, it can reduce the inspection errors caused by human factors; in terms of social benefits, it ensures the safe operation of the equipment and reduces the risk of casualties and property losses caused by accidents such as wire rope breakage; the online real-time monitoring function of the utility model can timely detect various damages to the wire rope, give early warning, and avoid many potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A magnified view of the weak magnetic detection mechanism in the figure;

[0016] As shown in the figure:

[0017] 1. Pressure sensor, 2. Rotating frame, 3. Tensioning wheel, 4. Support frame, 5. Support wheel, 6. Magnetic field planner, 7. Weak magnetic detector, 8. Base frame, 9. Pull rope, 10. Side plate, 11. Sprayer, 12. Vertical rod, 13. Connecting block, 14. Slide block, 15. Fastening bolts, 16. Cross bar, 17. Wire rope. DETAILED DESCRIPTION

[0018] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0019] like Figures 1-2The utility model shown is an online monitoring device for a main lifting wire rope, comprising a pressure sensor 1, a frame extending up and down is fixedly connected to the ground, the pressure sensor 1 is fixedly connected to the frame, the pressure sensor extends in the left and right directions, the left end of the pressure sensor is fixedly connected to the frame, the right end of the pressure sensor is connected to a rotating frame 2, a tensioning wheel 3 is rotatably connected to the rotating frame, the wire rope is supported on the tensioning wheel 3, the left end face of the wire rope is tightly against the right end face of the tensioning wheel 3, support wheels 5 are respectively installed on the upper and lower sides of the tensioning wheel, a support frame 6 is fixedly connected to the frame, the support wheel 5 is rotatably connected to the support frame, and the wire rope is supported on the support wheel 5.

[0020] The pressure sensor 1 is electrically connected to a signal transmitter, the signal transmitter is connected to a signal receiver, the signal receiver is electrically connected to an upper detection device, the signal transmitter, the signal receiver and the upper detection device are all prior art, the signal transmitter can send out the wire rope tension information sensed by the pressure sensor, the signal receiver receives the signal and transmits the signal to the upper detection device, the upper detection device analyzes and processes the received information and displays it on a display screen.

[0021] A weak magnetic detection mechanism is installed on the wire rope, and the weak magnetic detection mechanism includes a base frame 8 and a magnetic field planner 6 and a weak magnetic detector 7 installed on the base frame. The weak magnetic detector 7 is electrically connected to the upper detection equipment. The base frame extends in the horizontal direction and is fixed on the ground. An articulated frame is provided at the center position of the base frame, and an articulated shaft is rotatably connected to the articulated frame. A vertical rod 12 is fixed to the articulated shaft, so that the vertical rod 12 is hinged to the base frame 8. The magnetic field planner 6 and the weak magnetic detector 7 are installed on the vertical rod 12 through a telescopic assembly, and the magnetic field planner 6 is located above the weak magnetic detector 7.

[0022] The telescopic assembly includes a connecting block 13, and a plurality of mounting holes arranged in the up-down direction are opened on the vertical rod, and the mounting holes extend in the front-to-back direction, and the mounting holes are evenly distributed on the vertical rod. A threaded hole is opened on the rear end face of the connecting block, and the connecting block 13 is connected to the vertical rod 12 by bolts passing through the mounting holes. The appropriate mounting holes can be selected according to the needs to install the connecting block, so as to change the height of the connecting block on the vertical rod. A slide block 14 is installed on the connecting block, and the slide block 14 is located in front of the vertical rod 12. The slide block 14 extends in the left and right directions. A through hole is opened on the left end face of the slide block, which penetrates the slide block in the left and right directions. A cross bar 16 is slidably connected laterally on the connecting block, and the cross bar is installed in the through hole. The cross bar passes through the slide block and is slidably connected to the slide block in the left and right directions, so that the cross bar is slidably connected to the connecting block.

[0023] Two fastening bolts 15 are threadedly connected to the slide block, and the fastening bolts extend to the cross bar 16. The two fastening bolts extend in the up-down direction and the front-back direction respectively. The fastening bolts extending in the up-down direction are installed on the upper end surface of the slide block 14, and the fastening bolts extending in the front-back direction are installed on the front end surface of the slide block 14. By tightening the fastening bolts, the cross bar 16 can be fixed in the slide block 14.

[0024] The magnetic field planner 6 and the weak magnetic detector 7 are installed on the cross bar, and the steel wire rope passes through the magnetic field planner 6 and the weak magnetic detector 7 from top to bottom in sequence. The left end of the magnetic field planner 6 and the left end of the weak magnetic detector are fixedly connected to the right end of the corresponding cross bar.

[0025] Two pulling ropes 9 are connected to the upper section of the vertical rod, and the lower ends of the two pulling ropes are respectively connected to the left and right ends of the base. The lower ends of the pulling ropes are wrapped around the base frame 8. The length of the pulling rope is selected according to needs to ensure that the pulling rope is in a taut state. A camera is provided at the installation location of the weak magnetic detection mechanism. The camera faces the weak magnetic detection mechanism and is electrically connected to the upper detection equipment.

[0026] A plurality of sprayers 11 are mounted on the base frame, and a side panel 10 extending in the up-down direction is mounted on the base frame, the side panel 10 is fixedly connected to the rear end of the base frame, and the wire rope is located in front of the side panel. The sprayers are mounted on the side panel 10, and the plurality of sprayers face the wire rope. The sprayers are connected to the paint tank through a pump body, and the pump body is connected to the sprayer and the paint tank respectively. The pump body and the paint tank are fixed on the ground, and the pump body is electrically connected to the upper detection equipment.

[0027] During use of this embodiment, the pressure sensor can detect the tension of the wire rope and send the detected information to the upper detection mechanism, which can analyze and process the received information and display it on the screen. When installing the weak magnetic detection mechanism, the base frame is fixed to the ground, the inclination angle of the vertical rod 12 is adjusted so that the vertical rod 12 is parallel to the wire rope, the pulling rope is tightened so that the vertical rod no longer rotates, the wire rope is passed through the magnetic field planner 6 and the weak magnetic detector 7, the cross bar is passed through the perforation of the slide block, the height of the connecting block is determined as needed and the connecting block is fixed to the vertical rod by bolts, the position of the cross bar is adjusted so that the wire rope is located at the center position of the magnetic field planner 6 and the weak magnetic detector 7, the fastening bolts 15 are tightened to fix the cross bar on the slide block, and when the weak magnetic detector 7 detects that the wire rope is damaged, the weak magnetic detector 7 transmits a signal to the upper detection device, and the upper detection device controls the pump body to start, so that the sprayer sprays the wire rope and marks the wire rope, thereby facilitating the staff to locate and repair the damaged position of the wire rope.

[0028] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. An online monitoring device for main hoisting wire rope, characterized in that: The device comprises a pressure sensor (1), wherein the pressure sensor is connected to a rotating frame (2), a tension wheel (3) is rotatably connected to the rotating frame, a steel wire rope is supported on the tension wheel (3), the pressure sensor is electrically connected to a signal transmitter, the signal transmitter is connected to a signal receiver, the signal receiver is electrically connected to an upper detection device, a weak magnetic detection mechanism is installed on the steel wire rope, the weak magnetic detection mechanism comprises a base frame (8) and a magnetic field planner (6) and a weak magnetic detector (7) installed on the base frame, a vertical rod (12) is hinged on the base frame, and the magnetic field planner (6) and the weak magnetic detector (7) are installed on the vertical rod (12) via a telescopic assembly; A plurality of sprayers (11) are mounted on the base frame, the plurality of sprayers are directed toward the steel wire rope, the sprayers are connected to a paint tank via a pump body, and the pump body is electrically connected to an upper detection device.

2. The main hoisting wire rope online monitoring device according to claim 1 is characterized in that: The telescopic assembly comprises a connecting block (13), the vertical rod is provided with a plurality of mounting holes arranged in the up-down direction, the connecting block (13) is connected to the vertical rod (12) by means of bolts passing through the mounting holes, a cross bar (16) is slidably connected to the connecting block in the transverse direction, and a magnetic field planner (6) and a weak magnetic detector (7) are mounted on the cross bar.

3. The main hoisting wire rope online monitoring device according to claim 1 is characterized in that: The upper section of the vertical rod is connected to two pulling ropes (9), and the lower ends of the two pulling ropes are respectively connected to the left and right ends of the base.

4. The main hoisting wire rope online monitoring device according to claim 1 is characterized in that: Support wheels (5) are respectively installed on the upper and lower sides of the tension wheel, and the steel wire rope is supported on the support wheels (5).

5. The main hoisting wire rope online monitoring device according to claim 2 is characterized in that: A slide block (14) is installed on the connecting block, the cross bar passes through the slide block and is slidably connected in the slide block in the left-right direction, and two fastening bolts (15) are threadedly connected to the slide block. The fastening bolts extend to the cross bar (16), and the two fastening bolts extend in the up-down direction and the front-back direction respectively.

6. The main hoisting wire rope online monitoring device according to claim 1 is characterized in that: A side plate (10) extending in the up-down direction is mounted on the base frame, the steel wire rope is located in front of the side plate, and the sprayer is mounted on the side plate.

7. The main hoisting wire rope online monitoring device according to claim 1 is characterized in that: A camera is provided at the installation location of the weak magnetic detection mechanism, and the camera is electrically connected to the upper detection equipment.

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