A hot spot detection device for mine hoist

Abstract

The utility model relates to the technical field of mine hoist, concretely is a mine hoist hotspot detection device, including equipment casing, machine shell, temperature sensor, signal processing module, data transmission module and monitoring terminal, the top middle place of machine shell is equipped with the mounting hole for temperature sensor installation, and the bottom of temperature sensor is provided with detection probe, the periphery inner wall of machine shell is fixedly installed with mounting plate, and the bottom middle place of mounting plate is fixedly installed with heat conduction cylinder, the utility model discloses through heat conduction silica gel filler can effectively eliminate the air gap between detection probe and heat conduction cylinder, significantly speeds up the heat transfer speed, lets temperature sensor can more quickly perceive the temperature change of mine hoist, simultaneously, through heat conduction cylinder and heat conduction fin further improve the heat conduction efficiency, make temperature detection more timely and accurate, avoid the detection delay or misjudgment caused by heat transfer lag.

Description

Technical Field

[0001] This utility model relates to the field of mine hoist technology, specifically a mine hoist hotspot detection device. Background Technology

[0002] Mine hoists, as key equipment in mine production, are responsible for hoisting coal and ore, as well as transporting personnel and equipment. During prolonged high-load operation, they are prone to hot spots in certain areas due to mechanical friction, electrical faults, and other factors. For example, when the hoist motor is running, the windings heat up due to the current flowing through them. If heat dissipation is inadequate or a short circuit occurs, the temperature will rise sharply, forming a hot spot. Transmission components such as bearings and gears, under conditions of long-term wear or poor lubrication, can also experience increased friction, leading to localized overheating. If these hot spots are not detected and addressed promptly, they can severely affect the normal operation of the hoist, and even cause major safety accidents such as fires and equipment damage, resulting in significant losses to mine production.

[0003] Currently, there are certain shortcomings in the technical means for monitoring hot spots in mine hoists: some traditional monitoring methods rely on regular manual inspections, with workers using handheld thermometers to detect the temperature of key parts of the hoist. This method is not only inefficient but also greatly affected by human factors, making it difficult to achieve real-time and comprehensive monitoring and easily overlooking potential hot spot problems. On the other hand, some existing automated monitoring equipment, such as devices using single-point temperature sensors, suffers from problems because the temperature sensor probe only extends into the detection area, leaving an air gap. Since air has poor thermal conductivity, the heat transfer speed is slow, which affects the detection efficiency of the temperature sensor. Therefore, there is an urgent need to design a hot spot detection device for mine hoists to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a hot spot detection device for mine hoists to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hotspot detection device for a mine hoist includes an equipment housing, a casing, a temperature sensor, a signal processing module, a data transmission module, and a monitoring terminal. The casing has a mounting hole at the top center for the temperature sensor, and a detection probe is located at the bottom of the temperature sensor. A mounting plate is fixedly installed on the inner walls of the casing, and a heat-conducting cylinder is fixedly installed at the bottom center of the mounting plate. The equipment housing has a second through-hole for the heat-conducting cylinder to pass through, and both the top center of the heat-conducting cylinder and the center of the mounting plate have first through-holes for the detection probe to pass through. The heat-conducting cylinder is filled with thermally conductive silicone filler.

[0007] Furthermore, the heat-conducting cylinder is designed to be thin-walled, and multiple vent holes are provided at the bottom of the heat-conducting cylinder.

[0008] Furthermore, heat-conducting plates are installed on both sides of the inner wall of the heat-conducting cylinder at equal intervals, and the heat-conducting plates are staggered. The heat-conducting plates are designed in an arc fan shape, and both the heat-conducting plates and the heat-conducting cylinder are made of copper metal material.

[0009] Furthermore, a filling tube is fixed to one side of the top of the heat-conducting cylinder, passing through the mounting plate and extending to the outside of the housing.

[0010] Furthermore, mounting ears are fixed to the bottom of all four sides of the housing, and the mounting ears are connected to the housing by bolts.

[0011] Furthermore, a sealing strip is fixedly installed around the bottom of the housing, and the sealing strip is attached to the housing.

[0012] Furthermore, the temperature sensor, signal processing module, data transmission module, and monitoring terminal are electrically connected. The signal processing module integrates a signal amplification circuit, a filtering circuit, and an analog-to-digital conversion circuit. The data transmission module uses wireless transmission to transmit the temperature data processed by the signal processing module to the monitoring terminal in real time. The monitoring terminal is an industrial control computer with dedicated monitoring software installed inside.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, the device significantly improves detection performance through a unique thermal structure design of a heat-conducting cylinder, thermally conductive silicone filler, and thermally conductive sheet. Specifically, the thermally conductive silicone filler inside the heat-conducting cylinder effectively eliminates the air gap between the detection probe and the heat-conducting cylinder, significantly accelerating the heat transfer speed. This allows the temperature sensor to detect temperature changes in the mine hoist more quickly. At the same time, the thin-walled heat-conducting cylinder and the heat-conducting cylinder and sheet made of copper metal further improve heat conduction efficiency, making temperature detection more timely and accurate, and avoiding detection delays or misjudgments caused by lag in heat transfer.

[0015] In this invention, multiple vent holes at the bottom of the heat-conducting cylinder allow internal air to be expelled during the filling of thermally conductive silicone filler, ensuring that the filler is fully and tightly packed, thus guaranteeing the stability of the heat conduction effect. Furthermore, the sealing strips around the bottom of the housing enhance the device's sealing performance, preventing dust, moisture, and other contaminants from entering the equipment and avoiding damage to components such as temperature sensors, thereby extending the device's service life.

[0016] In terms of comprehensiveness and real-time performance, this invention achieves automated real-time monitoring. The electrical connection between the temperature sensor, signal processing module, data transmission module, and monitoring terminal, along with the wireless transmission method of the data transmission module, enables the processed temperature data to be transmitted to the monitoring terminal in real time. Compared with traditional manual inspection, this not only saves labor costs and improves monitoring efficiency, but also enables 24 / 7 uninterrupted monitoring, avoiding the intermittency and human interference of manual inspection. It can comprehensively capture temperature changes in mine hoists and promptly identify potential hotspots. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of a hotspot detection device for a mine hoist.

[0018] Figure 2 This is a three-dimensional sectional view of a hotspot detection device for a mine hoist.

[0019] Figure 3 This is a schematic diagram of the mounting hole and injection pipe structure of a hot spot detection device for a mine hoist.

[0020] Figure 4 This is a schematic diagram of the thermally conductive silicone filler and thermally conductive sheet structure of a hotspot detection device for a mine hoist.

[0021] Figure 5 This is a schematic diagram of the exhaust port structure of a hotspot detection device for a mine hoist.

[0022] Figure 6 This is a system diagram of a hotspot detection device for a mine hoist.

[0023] In the diagram: 1. Equipment housing; 2. Machine casing; 3. Temperature sensor; 4. Mounting lug; 5. Detection probe; 6. Heat-conducting cylinder; 7. Mounting plate; 8. Sealing strip; 9. Injection pipe; 10. Mounting hole; 11. First perforation; 12. Second perforation; 13. Thermally conductive silicone filler; 14. Heat-conducting sheet; 15. Vent; 16. Signal processing module; 17. Data transmission module; 18. Monitoring terminal. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6In this embodiment of the invention, a hotspot detection device for a mine hoist includes a housing 1, a casing 2, a temperature sensor 3, a signal processing module 16, a data transmission module 17, and a monitoring terminal 18. The temperature sensor 3, signal processing module 16, data transmission module 17, and monitoring terminal 18 are electrically connected. The signal processing module 16 integrates a signal amplification circuit, a filtering circuit, and an analog-to-digital conversion circuit. The signal amplification circuit amplifies the weak electrical signal collected by the temperature sensor 3 to meet subsequent processing requirements, while the filtering circuit effectively removes noise interference from the signal and improves signal purity. The analog-to-digital converter circuit converts the analog signal into a digital signal for easier data transmission and processing. The processed digital signal is then transmitted to the data transmission module 17, which uses wireless transmission to transmit the temperature data processed by the signal processing module 16 to the monitoring terminal 18 in real time. The monitoring terminal 18 is an industrial control computer with dedicated monitoring software. This software has functions such as real-time data display, data analysis, and hotspot alarm. A mounting hole 10 for the temperature sensor 3 is located in the center of the top of the housing 2, and a detection probe 5 is located at the bottom of the temperature sensor 3. A mounting plate 7 is fixedly installed on the inner walls of the shell 2, and a heat-conducting cylinder 6 is fixedly installed at the bottom center of the mounting plate 7. A second through hole 12 is opened on the shell 1 for the heat-conducting cylinder 6 to pass through, and a first through hole 11 is opened at the top center of the heat-conducting cylinder 6 and the middle of the mounting plate 7 for the detection probe 5 to pass through. The heat-conducting cylinder 6 is filled with thermally conductive silicone filler 13. The heat-conducting cylinder 6 is designed to be thin-walled, and multiple vent holes 15 are opened at the bottom of the heat-conducting cylinder 6. Through the vent holes 15, internal air can be discharged when filling the thermally conductive silicone filler 13, ensuring that the filler is fully and tightly filled and ensuring stable heat conduction effect. The inner walls of the heat-conducting cylinder 6 are equipped with equally spaced heat-conducting plates 14, which are staggered and designed in an arc-fan shape. Both the heat-conducting plates 14 and the heat-conducting cylinder 6 are made of copper metal. The interior of the heat-conducting cylinder 6 is filled with thermally conductive silicone filler 13, which can effectively eliminate the air gap between the detection probe 5 and the heat-conducting cylinder 6, significantly accelerating the heat transfer speed. At the same time, the thin-walled heat-conducting cylinder 6 and the heat-conducting plates 14 made of copper metal further improve the heat conduction efficiency, making the temperature detection more timely and accurate, and avoiding detection delays or misjudgments caused by heat transfer lag.

[0026] Specifically, a filling tube 9 is fixed on one side of the top of the heat-conducting cylinder 6, which passes through the mounting plate 7 and extends to the outside of the housing 2. The filling tube 9 facilitates the filling of the heat-conducting silicone filler 13 into the heat-conducting cylinder 6.

[0027] Specifically, mounting lugs 4 are fixed to the bottom of the casing 2 on all four sides, and the mounting lugs 4 are connected to the equipment casing 1 by bolts. Sealing strips 8 are fixedly installed around the bottom of the casing 2 and are attached to the equipment casing 1. The mounting lugs 4 securely connect the entire detection device to the equipment casing 1, ensuring that the device can maintain a stable installation state even when the mine hoist is running and vibrating, thus ensuring the normal operation of the detection work. The sealing strips 8 also enhance the sealing of the device, preventing dust, water vapor and other substances in the mine from entering the equipment and avoiding damage to components such as the temperature sensor 3, thereby extending the service life of the device.

[0028] The working principle of this utility model is as follows: During use, the heat generated by the mine hoist during operation is transferred to the heat-conducting cylinder 6. Since the heat-conducting cylinder 6 is made of copper metal and has a thin wall, and the copper heat-conducting plates 14 on both sides of its inner wall are distributed in an alternating arc fan shape, it can efficiently receive and conduct heat. The heat is further transferred through the thermally conductive silicone filler 13 inside the heat-conducting cylinder 6. The thermally conductive silicone filler 13 can eliminate the air gap between the detection probe 5 and the heat-conducting cylinder 6, accelerating heat transfer. The heat reaches the detection probe 5 of the temperature sensor 3, and the detection probe 5 transmits the temperature signal to the temperature sensor 3. The temperature sensor 3 sends the signal to the signal processing module 16. After the signal processing module 16 processes the signal through the signal amplification circuit, filtering circuit and analog-to-digital conversion circuit, it is transmitted wirelessly to the monitoring terminal 18 in real time through the data transmission module 17, realizing the monitoring of hot spots of the mine hoist.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A hotspot detection device for a mine hoist, comprising an equipment housing (1), a casing (2), a temperature sensor (3), a signal processing module (16), a data transmission module (17), and a monitoring terminal (18), characterized in that: The top center of the housing (2) is provided with a mounting hole (10) for installing a temperature sensor (3), and a detection probe (5) is provided at the bottom of the temperature sensor (3). A mounting plate (7) is fixedly installed on the inner wall of the housing (2), and a heat-conducting cylinder (6) is fixedly installed at the bottom center of the mounting plate (7). A second through hole (12) is provided on the housing (1) for the heat-conducting cylinder (6) to pass through. A first through hole (11) for the detection probe (5) to pass through is provided at the top center of the heat-conducting cylinder (6) and at the center of the mounting plate (7). A thermally conductive silicone filler (13) is provided inside the heat-conducting cylinder (6).

2. The hot spot detection device for a mine hoist according to claim 1, characterized in that: The heat-conducting cylinder (6) is designed to be thin-walled, and multiple exhaust holes (15) are provided at the bottom of the heat-conducting cylinder (6).

3. The hot spot detection device for a mine hoist according to claim 2, characterized in that: The inner walls of the heat-conducting cylinder (6) are equipped with heat-conducting plates (14) that are evenly distributed on both sides, and the heat-conducting plates (14) are staggered. The heat-conducting plates (14) are designed in an arc fan shape. Both the heat-conducting plates (14) and the heat-conducting cylinder (6) are made of copper metal material.

4. A mine hoist hotspot detection device according to claim 3, characterized in that: The top side of the heat-conducting cylinder (6) is fixed with an injection pipe (9) that passes through the mounting plate (7) and extends to the outside of the housing (2).

5. A mine hoist hotspot detection device according to claim 4, characterized in that: The bottom of the casing (2) is fixed with mounting ears (4), and the mounting ears (4) are connected to the casing (1) by bolts.

6. A mine hoist hotspot detection device according to claim 1, characterized in that: A sealing strip (8) is fixedly installed around the bottom of the housing (2), and the sealing strip (8) is attached to the equipment housing (1).

7. A mine hoist hotspot detection device according to claim 1, characterized in that: The temperature sensor (3), signal processing module (16), data transmission module (17) and monitoring terminal (18) are electrically connected. The signal processing module (16) integrates a signal amplification circuit, a filtering circuit and an analog-to-digital conversion circuit. The data transmission module (17) uses wireless transmission to transmit the temperature data processed by the signal processing module (16) to the monitoring terminal (18) in real time. The monitoring terminal (18) is an industrial control computer with dedicated monitoring software installed inside.

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