Fault early warning device for coal mine driving anchor machine
By adjusting the position of the moving block and the design of the cleaning components, the problems of sensor adaptability and dust blockage were solved, enabling efficient fault early warning and monitoring of coal mine roadheaders and improving monitoring accuracy and sensitivity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA HUINENG COAL & ELECTRICITY GRP YANGSHITA COAL CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-22
AI Technical Summary
The sensors of existing coal mine roadheaders have a fixed height, which makes it difficult to adapt to the structural differences of different roadheader models and complex operating environments, resulting in limited monitoring accuracy. In addition, the gas detection device is easily blocked by dust, affecting the monitoring sensitivity.
By adjusting the position of the movable block on the support block, the early warning component and the detection component move synchronously, adapting to the structural differences of different models of roadheaders and the monitoring position requirements in complex operating environments, and equipped with a cleaning component to ensure unobstructed air intake for the gas detector.
It enables better prediction of tunneling and anchoring machine failures, improves the monitoring effect of parameters such as vibration, gas concentration, temperature and humidity, ensures monitoring sensitivity and cleaning efficiency, and avoids monitoring blind spots and dust blockage.
Smart Images
Figure CN224266486U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of early warning technology for tunneling and anchoring machines, and in particular to a fault early warning device for tunneling and anchoring machines in coal mines. Background Technology
[0002] In coal mine tunneling operations, the roadheader is a core piece of equipment, and its operational safety and fault warning capabilities are directly related to the safety of underground workers and production efficiency.
[0003] A search revealed Chinese patent CN219840705U, which provides an intelligent monitoring and fault early warning device for ventilation in coal mines. By setting a stable fixation, the device can be better positioned during use, avoiding instability caused by shaking or damage caused by tilting. It also makes it easier to install and remove sensors and use alarms, thus having better usability and protection.
[0004] However, during use, it was found that the sensor height is relatively fixed, making it difficult to adapt to the structural differences of different models of tunneling and anchoring machines or the monitoring position requirements in complex operating environments. This can easily lead to limited monitoring accuracy of key parameters such as vibration, gas concentration, temperature and humidity. The air inlet of the gas detection device is easily blocked by dust, affecting the monitoring sensitivity. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a fault early warning device for coal mine roadheaders. By adjusting the position of the movable block on the support block, the early warning component and the detection component move synchronously. This facilitates adaptation to the structural differences of different roadheader models and the monitoring position requirements in complex operating environments. It avoids monitoring blind spots caused by fixed installation, improves the monitoring effect of parameters such as vibration, gas concentration, temperature and humidity, and enables better prediction of roadheader faults. It also overcomes the limitations of single-parameter monitoring, ensures unobstructed air intake for the gas detector, and maintains the sensitivity of the monitoring.
[0006] To solve the above technical problems, this utility model provides the following technical solution: a coal mine roadheader fault early warning device, including a mounting base, a support block fixedly provided on the top surface of the mounting base, a plurality of movable blocks slidably connected to one end of the support block, an early warning component provided on the movable block on one side of the support block, and a detection component provided on the plurality of movable blocks on the other side of the support block;
[0007] The detection assembly includes a second mounting plate on which a gas detector is mounted. A cleaning assembly is installed at the gas inlet of the gas detector, and a temperature and humidity sensor is provided at one end of the gas detector.
[0008] The cleaning assembly includes an air intake filter, which is installed at the air intake end of the gas detector. An L-shaped cleaning block is slidably connected to the outer peripheral wall of the air intake filter. A rotating shaft is fixed at the lower end of the L-shaped cleaning block and is rotatably connected to the lower end of the air intake filter. One end of the L-shaped cleaning block is provided with a scraping part.
[0009] Preferably, a positioning block is fixed on the movable block, and a fastener is threadedly connected to the positioning block, with one end of the fastener near the support block abutting against the outer wall of the support block.
[0010] The above technical solution ensures that the end of the fastener close to the support block is pressed against the outer wall of the support block, and the relative position of the movable block and the support block is locked by friction, thereby fixing the corresponding movable block.
[0011] Preferably, the early warning component includes a first mounting plate, one end of which is equipped with an audible and visual alarm, and the other end of which is equipped with a vibration sensor.
[0012] Through the above technical solution, the vibration sensor can collect vibration data such as frequency and amplitude in real time during the operation of the tunneling and anchoring machine.
[0013] Preferably, a T-shaped ring is fitted onto the outer peripheral wall of the upper end of the air intake filter, and the L-shaped cleaning block is engaged with the T-shaped ring, with the upper end of the L-shaped cleaning block sliding against the outer peripheral wall of the T-shaped ring.
[0014] Preferably, the upper end of the L-shaped cleaning block is fixed with two supports, a gear is provided between the two supports, a rotating rod is fixed in the middle of the gear, and the outer peripheral walls of the two ends of the rotating rod are respectively rotatably connected to the supports.
[0015] Preferably, a servo motor is mounted on the bracket at the upper end, the output shaft of the servo motor is coaxially connected to the rotating rod, and an annular tooth groove is formed on the outer peripheral wall of the T-shaped ring, and the gear meshes with the annular tooth groove.
[0016] Through the above technical solution, the output shaft of the servo motor drives the rotating rod to rotate, and the rotating rod drives the gear to rotate. Since the gear meshes with the annular tooth groove on the outer peripheral wall of the T-ring, the rotation of the gear will push the L-shaped cleaning block to slide along the outer peripheral wall of the T-ring.
[0017] Preferably, an L-shaped ring is fixedly provided on the bottom surface of the air intake filter, the lower end of the L-shaped cleaning block is engaged with the L-shaped ring, and the L-shaped cleaning block slides with the L-shaped ring.
[0018] Through the above technical solution, the lower end of the L-shaped cleaning block engages with and slides on the L-shaped ring on the bottom surface of the air intake filter, ultimately achieving the circular movement of the L-shaped cleaning block around the outer peripheral wall of the air intake filter.
[0019] Preferably, a limiting groove is provided on the side of the L-shaped cleaning block near the outer peripheral wall of the air intake filter, and a gap is left between the limiting groove and the outer peripheral wall of the air intake filter. A dust suction groove is provided on the groove wall of the limiting groove.
[0020] Preferably, a dust extraction fan is installed on the lower outer peripheral wall of the L-shaped cleaning block, and the air inlet of the dust extraction fan is connected to the dust extraction groove.
[0021] With the above technical solution, after the dust collector is started, it sucks in and discharges the dust remaining on the removed air intake filter through the dust collection trough, completing the simultaneous operation of cleaning and dust collection.
[0022] The beneficial effects of this utility model are:
[0023] 1. By adjusting the position of the movable block on the support block, the early warning component and the detection component move synchronously until each sensor reaches the appropriate monitoring height of the roadheader. This facilitates adaptation to the structural differences of different roadheader models and the monitoring position requirements in complex operating environments, avoids monitoring blind spots caused by fixed installation, improves the monitoring effect of parameters such as vibration, gas concentration, temperature and humidity, enables better prediction of roadheader failures, makes up for the limitations of single parameter monitoring, ensures smooth air intake of the gas detector, and maintains the sensitivity of monitoring.
[0024] 2. During the sliding process of the L-shaped cleaning block, the scraping part at one end is close to the outer peripheral wall of the air intake filter, physically scraping away the dust attached to the outer peripheral wall of the air intake filter. After the dust extraction fan is started, the dust remaining on the air intake filter after scraping is sucked in and discharged through the dust extraction groove, completing the synchronous operation of cleaning and dust collection. This reduces the occurrence of air intake filter blockage, ensures smooth air intake of the gas detector, improves the sensitivity and stability of gas concentration monitoring, and improves cleaning efficiency and timeliness. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the early warning component structure of this utility model;
[0027] Figure 3 This is a schematic diagram of the detection component structure of this utility model;
[0028] Figure 4 This is a schematic diagram of the cleaning component structure of this utility model;
[0029] Figure 5 This is a schematic diagram of the L-shaped cleaning block structure of this utility model.
[0030] In the diagram: 100, mounting base; 101, support block; 102, movable block; 103, positioning block; 104, fastener;
[0031] 200. Early warning component; 201. First mounting plate; 202. Audible and visual alarm; 203. Vibration sensor;
[0032] 300. Detection component; 301. Second mounting plate; 302. Gas detector; 303. Temperature and humidity sensor;
[0033] 400. Cleaning component; 401. Air intake filter; 402. L-shaped cleaning block; 403. Rotating shaft; 404. Shovel; 405. T-ring; 406. Bracket; 407. Gear; 408. Rotating rod; 409. Servo motor; 410. Annular toothed groove; 411. L-shaped ring; 412. Limiting groove; 413. Dust suction groove; 414. Dust suction fan. Detailed Implementation
[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0035] Example 1: As Figure 1-4 As shown, this embodiment provides a coal mine roadheader fault early warning device, including a mounting base 100, a support block 101 fixed on the top surface of the mounting base 100, a plurality of movable blocks 102 slidably connected to one end of the support block 101, an early warning component 200 is provided on the movable block 102 located on one side of the support block 101, and a detection component 300 is provided on the plurality of movable blocks 102 located on the other side of the support block 101.
[0036] The detection component 300 includes a second mounting plate 301, on which a gas detector 302 is mounted. A cleaning component 400 is mounted at the air inlet end of the gas detector 302, and a temperature and humidity sensor 303 is provided at one end of the gas detector 302.
[0037] The cleaning assembly 400 includes an air intake filter 401, which is installed at the air intake end of the gas detector 302. An L-shaped cleaning block 402 is slidably connected to the outer peripheral wall of the air intake filter 401. A rotating shaft 403 is fixedly provided at the lower end of the L-shaped cleaning block 402. The rotating shaft 403 is rotatably connected to the lower end of the air intake filter 401. A scraping part 404 is provided at one end of the L-shaped cleaning block 402.
[0038] A positioning block 103 is fixed on the movable block 102, and a fastener 104 is threadedly connected to the positioning block 103. One end of the fastener 104 near the support block 101 abuts against the outer wall of the support block 101. The fastener 104 is pressed tightly against the outer wall of the support block 101 by friction, thereby locking the relative position of the movable block 102 and the support block 101 and fixing the corresponding movable block 102.
[0039] The early warning component 200 includes a first mounting plate 201, with an audible and visual alarm 202 mounted on one end of the first mounting plate 201 and a vibration sensor 203 mounted on the other end of the first mounting plate 201; the vibration sensor 203 collects vibration data such as frequency and amplitude during the operation of the tunneling and anchoring machine in real time.
[0040] Working principle: The mounting base 100 is fixedly installed on the top surface of the roadheader. The support block 101 can move up and down along the length of the support block 101 through the movable block 102 which is slidably connected. By adjusting the position of the movable block 102 on the support block 101, the early warning component 200 and the detection component 300 are driven to move synchronously until each sensor reaches the appropriate monitoring height of the roadheader. This facilitates the adaptation to the structural differences of different models of roadheaders and the monitoring position requirements in complex working environments, avoids monitoring blind spots caused by fixed installation, and improves the monitoring effect of parameters such as vibration, gas concentration, temperature and humidity.
[0041] Vibration sensor 203 collects vibration data in real time during the operation of the roadheader to determine whether there is abnormal vibration, such as loose or worn parts; gas detector 302 draws in ambient gas through air intake filter 401 to detect gas concentration, and triggers an alarm when the concentration exceeds the threshold; temperature and humidity sensor 303 simultaneously collects temperature and humidity data of the working environment to assist in analyzing the equipment's operating status and environmental safety; when any sensor detects abnormal data, the audible and visual alarm 202 in the early warning component 200 immediately issues an audible and visual alarm to remind operators to troubleshoot the fault in time; this enables better prediction of roadheader faults, overcomes the limitations of single-parameter monitoring, ensures unobstructed air intake for gas detector 302, and maintains monitoring sensitivity;
[0042] The movable block 102 slides along the length of the support block 101. After adjusting the warning component 200 and the detection component 300 to a suitable operating height, the fastener 104 on the positioning block 103 is tightened by screwing it in, so that the end of the fastener 104 close to the support block 101 is pressed against the outer wall of the support block 101. The relative position of the movable block 102 and the support block 101 is locked by friction, and the corresponding movable block 102 is fixed, so as to avoid the monitoring position deviation caused by the fixed height and improve the monitoring effect of parameters such as vibration, gas concentration, temperature and humidity.
[0043] Vibration sensor 203 collects vibration data such as frequency and amplitude during the operation of the tunneling and anchoring machine in real time; when the vibration data exceeds the preset threshold, the audible and visual alarm 202 immediately emits audible and visual signals, such as flashing lights and buzzing, to achieve rapid early warning of abnormal vibration.
[0044] Example 2: Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, based on Embodiment 1, a T-shaped ring 405 is sleeved on the outer peripheral wall of the upper end of the air intake filter 401. An L-shaped cleaning block 402 is engaged with the T-shaped ring 405. The upper end of the L-shaped cleaning block 402 slides against the outer peripheral wall of the T-shaped ring 405. Two supports 406 are fixedly mounted on the upper end of the L-shaped cleaning block 402. A gear 407 is provided between the two supports 406. A rotating rod 408 is fixedly mounted in the middle of the gear 407. The outer peripheral walls of both ends of the rotating rod 408 are rotatably connected to the supports 406 respectively. The upper support 406 is located on... A servo motor 409 is installed, and the output shaft of the servo motor 409 is coaxially connected to the rotating rod 408. The outer peripheral wall of the T-ring 405 is provided with an annular toothed groove 410, and the gear 407 is meshed with the annular toothed groove 410. The output shaft of the servo motor 409 drives the rotating rod 408 to rotate, and the rotating rod 408 drives the gear 407 to rotate. Since the gear 407 meshes with the annular toothed groove 410 on the outer peripheral wall of the T-ring 405, the rotation of the gear 407 will push the L-shaped cleaning block 402 to slide along the outer peripheral wall of the T-ring 405.
[0045] An L-shaped ring 411 is fixedly provided on the bottom surface of the air intake filter 401. The lower end of the L-shaped cleaning block 402 is engaged with the L-shaped ring 411, and the L-shaped cleaning block 402 slides with the L-shaped ring 411. The lower end of the L-shaped cleaning block 402 is engaged with and slides on the L-shaped ring 411 on the bottom surface of the air intake filter 401, ultimately realizing the annular movement of the L-shaped cleaning block 402 around the outer peripheral wall of the air intake filter 401.
[0046] A limiting groove 412 is provided on one side of the L-shaped cleaning block 402 near the outer peripheral wall of the air intake filter 401. A gap is left between the limiting groove 412 and the outer peripheral wall of the air intake filter 401. A dust suction groove 413 is provided on the groove wall of the limiting groove 412. A dust suction fan 414 is installed on the lower outer peripheral wall of the L-shaped cleaning block 402. The air intake end of the dust suction fan 414 is connected to the dust suction groove 413. After the dust suction fan 414 is started, it sucks in and discharges the dust remaining on the air intake filter 401 after it has been removed through the dust suction groove 413, thus completing the synchronous operation of cleaning and dust collection.
[0047] In use, the output shaft of the servo motor 409 drives the rotating rod 408 to rotate, and the rotating rod 408 drives the gear 407 to rotate. Since the gear 407 meshes with the annular tooth groove 410 on the outer peripheral wall of the T-ring 405, the rotation of the gear 407 will push the L-shaped cleaning block 402 to slide along the outer peripheral wall of the T-ring 405. At the same time, the lower end of the L-shaped cleaning block 402 engages with and slides with the L-shaped ring 411 on the bottom surface of the air intake filter 401, ultimately realizing the annular movement of the L-shaped cleaning block 402 around the outer peripheral wall of the air intake filter 401.
[0048] During the sliding process of the L-shaped cleaning block 402, the scraping part 404 at one end is close to the outer peripheral wall of the air intake filter 401, physically scraping away the dust adhering to the outer peripheral wall of the air intake filter 401; at the same time, a limiting groove 412 is formed on the side of the L-shaped cleaning block 402 near the air intake filter 401, and a gap is left between the limiting groove 412 and the outer peripheral wall of the air intake filter 401 to avoid scratching the air intake filter 401. The dust suction groove 413 on the groove wall of the limiting groove 412 is connected to the dust suction fan 414 at the lower end, and the dust is suctioned. After the blower 414 starts, it sucks in and discharges the dust remaining on the removed air intake filter 401 through the dust suction trough 413, completing the simultaneous operation of cleaning and dust collection. The output end of the dust suction blower 414 is further processed by external dust treatment equipment or dust collection bags, reducing the occurrence of air intake filter 401 blockage, ensuring smooth air intake of gas detector 302, improving the sensitivity and stability of gas concentration monitoring, and improving cleaning efficiency and timeliness.
[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fault early warning device for coal mine roadheader and anchor machine, characterized in that, include: Mounting base (100), the top surface of the mounting base (100) is fixedly provided with a support block (101), one end of the support block (101) is slidably connected with a plurality of movable blocks (102), a warning component (200) is provided on the movable block (102) located on one side of the support block (101), and a detection component (300) is provided on the plurality of movable blocks (102) located on the other side of the support block (101). The detection component (300) includes a second mounting plate (301), on which a gas detector (302) is mounted. A cleaning component (400) is mounted at the air inlet end of the gas detector (302), and a temperature and humidity sensor (303) is provided at one end of the gas detector (302). The cleaning assembly (400) includes an air intake filter (401), which is installed at the air intake end of the gas detector (302). An L-shaped cleaning block (402) is slidably connected to the outer peripheral wall of the air intake filter (401). A rotating shaft (403) is fixedly provided at the lower end of the L-shaped cleaning block (402). The rotating shaft (403) is rotatably connected to the lower end of the air intake filter (401). A scraping part (404) is provided at one end of the L-shaped cleaning block (402).
2. The coal mine roadheader fault early warning device as described in claim 1, characterized in that: A positioning block (103) is fixed on the movable block (102), and a fastener (104) is threaded onto the positioning block (103). One end of the fastener (104) near the support block (101) abuts against the outer wall of the support block (101).
3. The coal mine roadheader fault early warning device as described in claim 2, characterized in that: The warning component (200) includes a first mounting plate (201), one end of which is equipped with an audible and visual alarm (202), and the other end of which is equipped with a vibration sensor (203).
4. The coal mine roadheader fault early warning device as described in claim 3, characterized in that: The upper outer peripheral wall of the air intake filter (401) is fitted with a T-shaped ring (405), and the L-shaped cleaning block (402) is engaged with the T-shaped ring (405). The upper end of the L-shaped cleaning block (402) slides against the outer peripheral wall of the T-shaped ring (405).
5. The coal mine roadheader fault early warning device as described in claim 4, characterized in that: The upper end of the L-shaped cleaning block (402) is fixed with two supports (406), and a gear (407) is provided between the two supports (406). A rotating rod (408) is fixed in the middle of the gear (407), and the outer peripheral walls at both ends of the rotating rod (408) are rotatably connected to the supports (406).
6. The coal mine roadheader fault early warning device as described in claim 5, characterized in that: A servo motor (409) is installed on the bracket (406) located at the upper end. The output shaft of the servo motor (409) is coaxially connected with the rotating rod (408). The outer peripheral wall of the T-ring (405) is provided with an annular tooth groove (410). The gear (407) meshes with the annular tooth groove (410).
7. The coal mine roadheader fault early warning device as described in claim 6, characterized in that: The bottom surface of the air intake filter (401) is fixed with an L-shaped ring (411), and the lower end of the L-shaped cleaning block (402) is engaged with the L-shaped ring (411). The L-shaped cleaning block (402) and the L-shaped ring (411) slide together.
8. The coal mine roadheader fault early warning device as described in claim 7, characterized in that: The L-shaped cleaning block (402) has a limiting groove (412) on one side near the outer peripheral wall of the air intake filter (401). There is a gap between the limiting groove (412) and the outer peripheral wall of the air intake filter (401). A dust suction groove (413) is provided on the groove wall of the limiting groove (412).
9. The coal mine roadheader fault early warning device as described in claim 8, characterized in that: A vacuum cleaner (414) is installed on the lower outer peripheral wall of the L-shaped cleaning block (402), and the air inlet of the vacuum cleaner (414) is connected to the vacuuming groove (413).