Flexible probe for detecting wear of lining plate of ball mill

Abstract

The utility model aims to solve the problem that an existing lining plate abrasion detector cannot detect abrasion conditions in different directions, and provides a flexible probe for detecting abrasion of a lining plate of a ball mill, which comprises a bolt shell, four flexible circuit board fpc probes and a detection plate fixing bin. According to the probe, the abrasion conditions of the lining plate in different directions can be detected, so that the abrasion state of equipment is mastered more comprehensively, and the detection reliability and precision are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of ball mill equipment, and specifically relates to a flexible probe for detecting wear of ball mill liners. Background Technology

[0002] Ball mills are widely used grinding equipment in mining, metallurgy, and other fields. The wear condition of their internal liners directly affects the equipment's operating efficiency and service life. Traditional methods for detecting liner wear mainly rely on unidirectional detection, such as installing probes at bolt locations for measurement. However, unidirectional detection cannot comprehensively reflect the wear condition of the entire liner, especially when the wear difference in different directions is significant; data from a single probe is insufficient to represent the overall wear trend. Furthermore, due to space limitations during installation, existing probes often cannot fully fit the liner, leading to reduced detection accuracy and an inability to accurately predict wear along different directions. Summary of the Invention

[0003] This invention aims to solve the problem that existing liner wear detectors cannot detect wear in different directions, and provides a flexible probe for detecting wear on ball mill liners. This probe can detect wear on the liner in different directions, thereby gaining a more comprehensive understanding of the wear status of the equipment and improving the reliability and accuracy of the detection.

[0004] A flexible probe for detecting wear on ball mill liners includes a bolt housing, four flexible circuit board (FPC) probes, and a detection plate fixing chamber.

[0005] The detection board is housed in the fixed compartment of the detection board, which is equipped with a multiplexer for detecting changes in the FPC probe circuit, an analog-to-digital converter (ADC) chip for monitoring and converting the multiplexer signal, and a signal transmission module for receiving the ADC signal and transmitting the signal to the industrial Ethernet.

[0006] The bolt housing is a headed bolt for fixing the ball mill liner. There are four channels evenly distributed axially inside the bolt housing. Each FPC probe is inserted into one channel. The top of the probe is flush with the top of the bolt housing. The end of the probe is connected to the multiplexer of the detection plate fixing chamber.

[0007] The FPC probe has several independent circuit paths arranged on average. Each time the FPC probe wears down a certain distance, one path is disconnected.

[0008] Furthermore, the flexible probe used to detect wear of ball mill liners is also equipped with a gyroscope on the detection board for monitoring the position of the FPC probe and transmitting the position information to the industrial Ethernet.

[0009] Furthermore, the flexible probe used to detect wear on ball mill liners has an NB-IoT module as its signal transmission module.

[0010] Furthermore, the aforementioned flexible probe used to detect wear on the ball mill liner is connected to an antenna for stable communication via an NB-IoT module.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. The probe of this utility model is equipped with four FPC probes inside, which can realize multi-directional wear detection and ensure that wear conditions in various directions can be accurately captured.

[0013] 2. The probe of this utility model reduces the complexity and cost of the system through multiplexing technology, and enhances the anti-interference ability of the detection system.

[0014] 3. The design of the probe of this utility model, which disconnects sequentially when worn, simplifies the complexity of data processing and improves the stability and detection accuracy of the system. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the device of this utility model;

[0016] Figure 2 1. Schematic diagram of the probe circuit of this utility model;

[0017] Among them, 1. Bolt housing, 2. FPC probe, 3. Detection board fixing chamber, 4. Detection board, 5. Multiplexer, 6. Analog-to-digital converter (ADC) chip, 7. Signal transmission module, 8. Gyroscope, 9. Circuit path, 11. Head. Detailed Implementation

[0018] Example

[0019] A flexible probe for detecting wear of ball mill liners includes a bolt housing 1, four flexible circuit board (FPC) probes 2, and a detection plate fixing chamber 3.

[0020] The detection board is fixed in the detection board compartment and has a detection board 4. On it is a multiplexer 5 for detecting changes in the FPC probe circuit, an analog-to-digital converter chip ADC 6 for monitoring and converting the multiplexer signal, a signal transmission module 7 NB-IoT module for receiving the ADC signal and transmitting the signal to the industrial Ethernet, and the NB-IoT module is connected to an antenna for stable communication. The detection board is also equipped with a gyroscope 8 for monitoring the position of the FPC probe and transmitting the position information to the industrial Ethernet.

[0021] The bolt housing is a ball mill liner fixing bolt with head 11. Four channels are evenly arranged axially inside the bolt housing. Each FPC probe is inserted into one channel. The top of the probe is flush with the top of the bolt housing. The end of the probe is connected to the multiplexer of the detection plate fixing chamber.

[0022] The FPC probe has several independent circuit paths 9 arranged on average. When the FPC probe wears a certain distance, one path is disconnected.

[0023] The device is used by facing the inside of the ball mill with the head facing inwards. The detection plate fixing chamber is located outside the ball mill chamber and is fixed to the outer wall of the chamber with nuts and sealant. During ball mill operation, the material and grinding balls continuously wear down the liner and bolt housing. The four probes located inside the bolt housing also wear down continuously. Each time a probe wears a certain distance, a circuit is broken. The multiplexer that detects changes in the PCB probe circuit receives the voltage change caused by the circuit break. The analog-to-digital converter (ADC) chip, used to monitor the multiplexer signal, converts the voltage signal into an electrical signal and sends it to the NB-IoT module. This module transmits the signal to the industrial Ethernet and the host computer. Simultaneously, the gyroscope also transmits the azimuth data to the industrial Ethernet and the host computer, thus enabling the probe to detect the liner wear and the wear location in real time and send it to the host computer.

Claims

1. A flexible probe for detecting wear on ball mill liners, characterized in that, Includes bolt housing, four flexible circuit board FPC probes, and detection board mounting compartment; The detection board is installed in the fixed compartment of the detection board, which is equipped with a multiplexer for detecting changes in the FPC probe circuit, an ADC for monitoring and converting the multiplexer signal, and a signal transmission module for receiving the ADC signal and transmitting the signal to the industrial Ethernet. The bolt housing is a headed bolt for fixing the ball mill liner. There are four channels evenly distributed axially inside the bolt housing. Each FPC probe is inserted into one channel. The top of the probe is flush with the top of the bolt housing. The end of the probe is connected to the multiplexer of the detection plate fixing chamber. The FPC probe has several independent circuit paths arranged on average. Each time the FPC probe wears down a certain distance, one path is disconnected.

2. The flexible probe for detecting wear of ball mill liners according to claim 1, characterized in that, The detection board is also equipped with a gyroscope for monitoring the position of the FPC probe and transmitting the position information to the industrial Ethernet.

3. The flexible probe for detecting wear of ball mill liners according to claim 1, characterized in that, The signal transmission module is an NB-IoT module.

4. The flexible probe for detecting wear of ball mill liners according to claim 1, characterized in that, The NB-IoT module is connected to an antenna for stable communication.

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