Wear self-monitoring lining plate

Abstract

The utility model relates to a wear self-monitoring lining plate, which is characterized in that the wear self-monitoring lining plate comprises a non-metal lining plate, a conductive assembly and a low-voltage power supply monitoring circuit board, the non-metal lining plate is divided into an inner lining plate and an outer lining plate, the outer lining plate is provided with a conductive foil mounting groove shaped like a Chinese character'ji ', and a conductive foil is mounted in the conductive foil mounting groove. The conductive assembly comprises a conductive foil, a conductive bolt, a conductive silicone rubber ring, an insulating sleeve, an insulating spacer and an insulating nut, the low-voltage power supply monitoring circuit board is arranged at the lower part of the equipment shell, and a plurality of conductive silicone rubber contacts and bolt holes are arranged on the low-voltage power supply monitoring circuit board; the low-voltage power supply monitoring circuit board is installed on the outer side of the equipment shell through circuit board supporting studs and nuts, and the end faces of the conductive bolts make contact with conductive silicone rubber contacts on the low-voltage power supply monitoring circuit board. The utility model has the advantages that when the conductive foil is damaged to form an open circuit due to friction and collision caused by material friction, the low-voltage power supply monitoring circuit board can give an alarm when monitoring the open circuit.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment wear monitoring technology, specifically to a wear self-monitoring liner. Background Technology

[0002] Liners are auxiliary plates used to protect equipment or enhance functionality. They are widely used in various mechanical equipment such as ball mills, crushers, conveyors, and mixers in industries such as mining, metallurgy, chemicals, and building materials. Their main functions are: protecting equipment surfaces susceptible to wear, corrosion, or impact in demanding working environments; and reducing wear and tear caused by friction and collisions with materials, especially in machinery that frequently comes into contact with them. This reduces the frequency of equipment and component maintenance and replacement, lowers costs associated with frequent repairs and parts replacement, and extends the service life of the machinery.

[0003] As consumable parts, the liner plates are inevitably worn down during the use of mechanical equipment due to friction and collisions with materials. If the liner plates are not replaced in time when they have worn to a certain extent, they will wear down the equipment structure, causing irreparable damage to the machine body. Therefore, daily maintenance of the equipment is necessary during production, including checking the wear condition of the liner plates and replacing them promptly to prevent excessive wear, which could lead to liner plate wear through and ultimately damage to the equipment.

[0004] Currently, the wear of most lining plates is determined by on-site personnel. This manual inspection method requires stopping the machine, opening the outer cover, or disassembling the equipment shell when checking the internal lining plates. This not only wastes manpower but also leads to missed or incorrect inspections. Furthermore, it lacks timeliness and cannot monitor and provide real-time feedback on whether the lining plates are worn or have reached the wear replacement point.

[0005] More advanced liner wear detection relies on visual or ultrasonic technologies.

[0006] For example, the method for detecting wear of liner plates in a mining crusher published in application publication number CN115546158A uses visual image processing technology to obtain a higher precision amount of liner wear.

[0007] The online detection device and method for detecting the wear of mill liners using electromagnetic ultrasonic testing, published in application publication number CN111397552A, employs electromagnetic ultrasonic testing for online detection of the wear of mill liners.

[0008] These products have high installation and production costs, and the information they provide on lining wear is too redundant, which greatly increases the production costs for enterprises.

[0009] To address these issues, this invention proposes a wear-monitoring liner, providing a liner suitable for use in equipment for the production and transportation of non-conductive materials. Utility Model Content

[0010] The purpose of this invention is to provide a wear-monitoring liner that can be used as a liner in equipment for the production and transportation of non-conductive materials.

[0011] This utility model is implemented as follows: a wear self-monitoring liner, characterized in that it includes a non-metallic liner, conductive components, and a low-voltage power supply monitoring circuit board. The non-metallic liner is divided into an inner liner and an outer liner. The conductive components include conductive foil, conductive bolts, conductive silicone rubber rings, insulating sleeves, insulating gaskets, and insulating nuts. The inner liner is disposed on the side subject to material friction and collision, and the outer liner is disposed on the side in contact with the equipment housing. Countersunk bolt through holes are correspondingly opened at the four corners of the inner and outer liners. The insulating sleeve is installed in the countersunk bolt through holes of the outer liner. A Z-shaped conductive foil mounting groove is opened on the mating surface of the outer liner and the inner liner. The conductive foil is installed in the conductive foil mounting groove of the outer liner, and both ends are installed in the countersunk bolt through holes of the outer liner and on the top of the insulating sleeve.

[0012] The conductive silicone rubber ring is fitted onto the conductive foil at the top of the insulating sleeve and is in close contact with the conductive foil. The screw of the conductive bolt passes through the countersunk bolt through hole of the inner liner plate, the conductive silicone rubber ring, the countersunk bolt through hole of the outer liner plate, the insulating sleeve, and the liner plate mounting hole of the equipment housing. The inner liner plate and the outer liner plate are fixedly installed on the equipment housing by insulating gaskets and insulating nuts.

[0013] The low-voltage power supply monitoring circuit board is located at the bottom of the equipment housing. The low-voltage power supply monitoring circuit board has multiple conductive silicone rubber contacts and bolt holes. The low-voltage power supply monitoring circuit board is installed on the outside of the equipment housing by means of circuit board support studs and nuts. The end face of the conductive bolt is in contact with the conductive silicone rubber contacts on the low-voltage power supply monitoring circuit board.

[0014] As a further description of the above technical solution: the thickness of the outer lining plate is less than the thickness of the inner lining plate.

[0015] As a further description of the above technical solution: a circuit protection cover is also provided on the outside of the low-voltage power supply monitoring circuit board.

[0016] The advantages of this utility model are:

[0017] Compared with existing technologies, this utility model offers flexible installation and layout, making it suitable for monitoring vulnerable points of liners in various non-conductive material production and transportation equipment. It provides real-time monitoring and feedback on whether liners have reached the wear and replacement point, reducing the workload of daily inspections and disassembly checks for equipment maintenance personnel. It also avoids production accidents caused by inaccurate estimations, missed inspections, or incorrect inspections due to the experience of maintenance personnel, resulting in liner wear-through and equipment damage. This brings significant economic benefits to industries such as mining, metallurgy, chemicals, and building materials. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 A magnified view of part of I.

[0020] Figure 3 This is a structural diagram of the inner lining plate of this utility model;

[0021] Figure 4 This is a structural diagram of the outer lining plate of this utility model. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model discloses a wear self-monitoring liner, characterized in that it includes a non-metallic liner, conductive components, and a low-voltage power supply monitoring circuit board.

[0023] The non-metallic liner is divided into an inner liner 1 and an outer liner 2. The conductive components include a conductive foil 41, a conductive bolt 6, a conductive silicone rubber ring 3, an insulating sleeve 5, an insulating gasket 12, and an insulating nut 11. The inner liner 1 is located on the side subject to material friction and collision, and the outer liner 2 is located on the side in contact with the equipment housing. Countersunk bolt through holes are opened at the four corners of the inner liner 1 and the outer liner 2. The insulating sleeve is installed in the countersunk bolt through holes of the outer liner. A Z-shaped conductive foil mounting groove 4 is opened on the mating surface of the outer liner 1 and the inner liner 2. The conductive foil 41 is installed in the conductive foil mounting groove 4 of the outer liner 2, and both ends are installed in the countersunk bolt through holes of the outer liner and the top of the insulating sleeve.

[0024] The conductive silicone rubber ring 3 is fitted onto the conductive foil at the top of the insulating sleeve 5, with the outer ring tightly abutting against the conductive foil 41. The screw of the conductive bolt 6 passes through the countersunk bolt through hole of the inner liner plate, the conductive silicone rubber ring 3, the countersunk bolt through hole of the outer liner plate, the insulating sleeve 5, and the liner mounting hole of the equipment housing. The inner liner plate 1 and the outer liner plate 2 are fixedly installed on the equipment housing 14 through the insulating gasket 11 and the insulating nut 12, so that the conductive bolt 6, the conductive silicone rubber ring 3, and the conductive foil 41 form a good passage within the liner plate.

[0025] The low-voltage power supply monitoring circuit board 9 is located at the lower part of the equipment housing 14. The circuit board 9 has multiple conductive silicone rubber contacts 10 and bolt holes. It is mounted on the outside of the equipment housing 14 via circuit board support studs 7 and circuit board mounting nuts 8. The end face of the conductive bolt 6 contacts the conductive silicone rubber contacts 10 on the circuit board 9. This is used to monitor the continuity of the conductive foil 41 in real time using pulsed current, thereby monitoring whether the liner has reached the wear and replacement point.

[0026] As a further description of the above technical solution: the thickness of the outer liner plate 2 is less than the thickness of the inner liner plate 1. The inner liner plate 2 is the main working liner plate, and the outer liner plate 1 is a safety redundancy wear liner plate and a conductive component mounting groove; when the outer liner plate wears down to the joint surface of the inner and outer liner plates, the wear alarm point of the wear self-monitoring liner plate is reached; however, in order to ensure a smooth shutdown before maintenance and the safety of the equipment shell during the equipment operation to shutdown process, the inner liner plate 1 needs to have a certain thickness as a redundancy wear allowance.

[0027] As a further description of the above technical solution: the present invention also provides a circuit protection cover 13 on the outside of the low-voltage power supply monitoring circuit board to protect the low-voltage power supply monitoring circuit board.

[0028] Its working principle is:

[0029] The inner liner is installed on the side of the equipment that is subject to friction and collision with materials. When the inner liner wears down to the joint surface of the inner and outer plates, the conductive foil will leak out and rub against and collide with the materials, thus reaching the wear alarm point set by the self-monitoring liner. When the conductive foil 41 is damaged due to friction and collision with the materials, forming an open circuit, the low-voltage power supply monitoring circuit board 9 will detect the open circuit and trigger an alarm. This allows inspection personnel to know from outside the equipment that the liner has reached the end of its service life and needs to be replaced in a timely manner.

Claims

1. A wear self-monitoring liner, characterized in that: The device includes a non-metallic liner, conductive components, and a low-voltage power supply monitoring circuit board. The non-metallic liner is divided into an inner liner and an outer liner. The conductive components include conductive foil, conductive bolts, conductive silicone rubber rings, insulating sleeves, insulating gaskets, and insulating nuts. The inner liner is located on the side subject to material friction and collision, and the outer liner is located on the side in contact with the equipment housing. Countersunk bolt through holes are opened at the four corners of the inner and outer liners. The insulating sleeve is installed in the countersunk bolt through holes of the outer liner. A Z-shaped conductive foil mounting groove is opened on the mating surface of the outer liner and the inner liner. The conductive foil is installed in the conductive foil mounting groove of the outer liner, and both ends are installed in the countersunk bolt through holes of the outer liner and the top of the insulating sleeve. The conductive silicone rubber ring is fitted onto the conductive foil at the top of the insulating sleeve and is in close contact with the conductive foil. The screw of the conductive bolt passes through the countersunk bolt through hole of the inner liner plate, the conductive silicone rubber ring, the countersunk bolt through hole of the outer liner plate, the insulating sleeve, and the liner plate mounting hole of the equipment housing. The inner liner plate and the outer liner plate are fixedly installed on the equipment housing by insulating gaskets and insulating nuts. The low-voltage power supply monitoring circuit board is located at the bottom of the equipment housing. The low-voltage power supply monitoring circuit board has multiple conductive silicone rubber contacts and bolt holes. The low-voltage power supply monitoring circuit board is installed on the outside of the equipment housing by means of circuit board support studs and nuts. The end face of the conductive bolt is in contact with the conductive silicone rubber contacts on the low-voltage power supply monitoring circuit board.

2. The wear self-monitoring liner according to claim 1, characterized in that: The thickness of the outer liner is less than the thickness of the inner liner.

3. The wear self-monitoring liner according to claim 1, characterized in that: A circuit protection cover is also provided on the outside of the low-voltage power supply monitoring circuit board.

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