Mine shaft cage linkage car arrester

Abstract

The invention discloses a mine shaft cage linkage car arrester, and relates to the technical field of mine car arresters, the mine shaft cage linkage car arrester comprises a frame arranged below rails, and further comprises mounting seats respectively mounted on the frame on the outer sides of the two rails; the rotating shaft I is arranged in the mounting seat in a sleeving manner; the car stopping block is rotationally connected to the first rotating shaft, and the first rotating shaft is sleeved with a spring; aiming at the severe mine environment, the air holes I clean the rail surface to avoid dust raising, and the air holes II form a gas diffusion layer to prevent dust from invading a rotating part, so that the clamping stagnation probability is reduced; the pressure sensor and the position sensor perform two-parameter monitoring, faults such as clamping stagnation and loosening of the second connecting rod are accurately diagnosed, sensor faults and false alarms are distinguished in combination with dust data, impact damage is reduced through a buffer structure, the maintenance cost is reduced, and transportation safety is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of mine car arresters, and in particular relates to a mine shaft cage linked car arrester. Background Art

[0002] In mining operations, the shaft cage is a key transportation device connecting the underground and the surface. Its operational safety is directly related to the mine's production efficiency and the safety of personnel. The cage linkage car arrester is the core safety device of the shaft transportation system. It is mainly used to achieve precise positioning and reliable braking when the mine car enters and exits the cage, preventing accidents such as mine car sliding and derailment. At present, the mine shaft cage linkage car arrester widely adopts pneumatic drive. With the advantages of rapid power response and simple structural maintenance, it is widely used in various mining environments. However, the mining environment is characterized by high dust, high humidity, and strong vibration. During long-term use, the car arrester faces many technical difficulties, which seriously affect its working reliability and service life. Specifically, the following prominent problems exist: 1. Equipment wear and malfunction caused by dust pollution are particularly prominent. Mine cars transporting equipment are covered with large amounts of coal dust, rock dust, and other particulate matter. When the car slides downhill and collides with the car arrester, the violent impact causes a large amount of dust to scatter and accumulate on the car arrester surface and in the gaps between key components. Dust intrusion into the car arrester's multiple rotating points, such as the car block, connecting rod, and rotating shaft, exacerbates friction and wear, increasing equipment resistance and potentially causing rotational jamming, preventing the car arrester from switching to its normal operating state.

[0003] 2. The ability to monitor and diagnose abnormal conditions of the equipment is insufficient. The drive and transmission systems of the car arrester operate in harsh environments for a long time. Wear at each rotating point will increase resistance, and components such as connecting rods and joints are prone to loosening and misalignment, which in turn causes faults such as structural jamming or inadequate movement. In the existing technology, the means of monitoring the operating status of the car arrester are relatively simple, usually relying on manual inspections to determine whether the equipment is normal, and it is difficult to detect potential faults in real time. This lack of monitoring capability makes troubleshooting time-consuming and labor-intensive, which not only affects the efficiency of mine transportation, but is also likely to cause safety accidents due to failure to detect faults in a timely manner.

[0004] Therefore, in order to address the problems of dust pollution, increased wear, and delayed fault monitoring faced by cage-linked car arresters in harsh mining environments, it is urgent to develop a technical solution with active dust cleaning functions, intelligent status monitoring, and accurate fault diagnosis capabilities to improve the operational reliability and safety of the car arrester, reduce equipment maintenance costs, and ensure the efficient and stable operation of the mine shaft transportation system. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a mine shaft cage linkage car arrester that can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a mine shaft cage linked car stopper, comprising a frame arranged under the track, and also comprising: a mounting seat, respectively mounted on the frames on the outside of the two tracks; a rotating shaft one, sleeved in the mounting seat; a car stopper, rotatably connected to the rotating shaft one, and a spring is sleeved on the rotating shaft one to provide buffering damping for the car stopper; a driving assembly, used to drive the car stopper to flip on the mounting seat and approach the track surface; air hole one, respectively opened on both sides of the car stopper, for cleaning the track surface; air hole two, opened on the front end surface of the car stopper, for forming a gas diffusion layer with the outer side surface of the track when the car stopper flips close to the track, for cleaning dust at the mounting seat; a monitoring unit, comprising a pressure sensor and a position sensor, the pressure sensor being used to monitor the working pressure of the driving assembly, the position sensor being used to monitor the flipping position of the car stopper, and the monitoring unit judging the abnormal state of the driving assembly based on the monitoring results.

[0007] Preferably, the driving assembly includes a rotating shaft 2 rotatably connected to the frame, a double-headed cam is installed on the rotating shaft 2, and connecting rods 2 are respectively installed on the double-headed cams, and one end of the two connecting rods 2 is respectively connected to the connecting plates on adjacent vehicle blocks.

[0008] Preferably, the driving assembly also includes a cylinder mounted on a frame, an L-shaped plate is rotatably connected to the frame, the execution end of the cylinder is connected to the L-shaped plate, a single-headed cam is mounted on the rotating shaft 2, the single-headed cam and the L-shaped plate are connected by a connecting rod 1, and the single-headed cam and the double-headed cam are vertically distributed.

[0009] Preferably, the pressure sensor is installed on the air intake pipe close to the cylinder to monitor the real-time pressure of the cylinder working chamber, and the position sensor is installed on a mounting seat located on one side of the vehicle block.

[0010] Preferably, the logic for determining the abnormal state of the drive component by monitoring the pressure sensor and the position sensor includes: Assume that the reference pressure value of the pressure sensor is P0, P0 is the stable pressure value when the car arrester operates smoothly in a clean and wear-free state, and the normal threshold of the pressure sensor is P0×(1-Δ1) to P0×(1+Δ1), where Δ1 is the normal fluctuation deviation threshold, Δ1=10%; When the pressure sensor monitoring value is greater than the reference pressure value P0×(1+Δ2) and there is no signal change in both position sensors, it is determined to be abnormal sticking, where Δ2 is the preset sticking deviation threshold Δ2≥50%; when the pressure sensor monitoring value is greater than the reference pressure value P0×(1+Δ3) and Δ3>Δ2, it is determined to be severe sticking, where Δ3 is the severe sticking deviation threshold, Δ3=100%; When the pressure sensor monitoring value is less than the reference pressure value P0×(1-Δ5), and Δ5>Δ4, and there is no signal change in both position sensors, it is determined that the connecting rods on both sides are loose. Δ5 is the severe pressure loss deviation threshold, Δ4=30%, Δ5=60%; When the pressure sensor detection value is between P0×(1-Δ5) and P0×(1-Δ1), and there is no signal change in the position sensor on one side, it is determined that the second connecting rod on one side is loose, where Δ5 is the preset severe pressure loss deviation threshold Δ5≥60%, and Δ1 is the normal fluctuation deviation threshold Δ1≤10%.

[0011] Preferably, the drive component abnormal state judgment logic further includes: When the pressure sensor monitoring value is normal, the position sensor signal fluctuates and the vehicle block does not reach the specified position, it is determined that the adjustment distance of the connecting rod is too large or too small, resulting in the double-headed cam being unable to be level with the frame; When the pressure sensor monitoring value is less than the reference pressure value P0×(1-Δ5) and the position sensor signal changes normally, it is determined that the pressure sensor is faulty.

[0012] Preferably, the drive component abnormal state judgment logic further includes: A clean air pipe is provided on the frame, and an air outlet end of the clean air pipe faces the position sensor; After the position sensor is cleaned by the cleaning air pipe, if there is still no signal from the position sensor, it is determined that the position sensor is faulty; After the cleaning air pipe cleans the position sensor, if the position sensor signal is restored, it is determined to be a false alarm caused by dust obstruction, wherein the activation of the cleaning air pipe is triggered based on the concentration monitoring result of the laser dust sensor.

[0013] Preferably, a laser dust sensor is provided on the frame outside the track. When the dust concentration detected by the laser dust sensor is greater than the dust warning threshold, a dust accumulation warning is issued below the track. The reference dust concentration is C0, which is the ambient dust concentration when no mining vehicles pass through the vehicle blocker. C0 = 10 mg / m 3 ; Dust warning threshold: when the monitoring concentration is greater than C0×(1+Δ C ) triggers an early warning, Δ Cis the dust deviation threshold, Δ C =200%.

[0014] Preferably, the monitoring data of the laser dust sensor is used to assist in determining the fault state of the pressure sensor, and the auxiliary judgment logic includes: When the pressure sensor monitoring value is less than the reference pressure value P0×(1-Δ5), and Δ5>Δ4, and the position sensor signal is normal, if the laser dust sensor monitors the dust concentration in the pressure sensor installation area <C0×(1+Δ C ), it is first determined to be a pressure sensor failure.

[0015] Preferably, the monitoring data of the laser dust sensor is used to assist in determining the fault state of the position sensor, and the auxiliary judgment logic includes: When the position sensor has no signal output, if the dust concentration detected by the laser dust sensor is greater than C0×(1+Δ C ), the cleaning air pipe is controlled to perform jet cleaning on the position sensor. If the position sensor signal is restored after cleaning, it is determined that the temporary signal abnormality is caused by dust obstruction; When the position sensor has no signal output, if the laser dust sensor detects that the current dust concentration is ≤ C0×(1+Δ C ), but if there is still no signal for 5-10 seconds after the position sensor is cleaned, dust interference is ruled out and it is determined that the position sensor is faulty.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: 1. The mine shaft cage linkage car arrester sprays air onto the track surface through the air holes of the car block, reducing the dust raised by the mine car when running on the track, and reducing the dust friction when the mine car contacts the track, reducing track wear, and increasing the service life of the track. It also reduces the wear between the mine car and the track, thereby reducing the impact of metal dust generated by wear on the smooth operation of the structure; the gas diffusion layer formed by the air hole two can cover the mounting seat, shaft one and other rotating parts, effectively preventing dust from invading the gap, reducing the wear of the rotating point, reducing the probability of jamming, and ensuring the smoothness of the turning action of the car block.

[0017] 2. The mine's shaft cage is linked to a car arrester, and a laser dust sensor monitors the dust concentration under the track in real time. When the concentration exceeds C0×(1+200%), an early warning is triggered to avoid structural jamming caused by dust accumulation. Compared with traditional manual inspections, hidden dangers can be discovered earlier.

[0018] 3. The mine shaft cage linkage car blocker uses dual-parameter monitoring of "pressure sensor + position sensor" combined with quantitative threshold logic to distinguish mechanical faults such as abnormal jamming (pressure exceeds the baseline by 50% and the position of the car block does not change), severe jamming (pressure exceeds the baseline by 100%), loose connecting rod 2 (pressure is 40%-60% lower than the baseline and the position signal is abnormal), and improper adjustment of the connecting rod 1.

[0019] 4. The mine's shaft cage-linked car arrester uses a laser dust sensor to assist in determining the sensor status. When the pressure sensor indication is abnormal but the position signal is normal and the dust concentration is within the limit, it is prioritized as a pressure sensor failure. When the position sensor has no signal, the dust concentration and the signal recovery after cleaning are combined to distinguish between false alarms due to dust obstruction and real sensor failures, reducing ineffective maintenance.

[0020] 5. The mine shaft cage-linked car arrester has an intelligent monitoring system that captures equipment abnormalities in real time, replacing the traditional manual inspection mode, discovering potential faults (such as jamming and loosening) in advance, shortening troubleshooting time, and reducing maintenance labor costs. Through dust warning, fault diagnosis and active cleaning functions, it avoids accidents such as mine car sliding and derailment caused by car arrester failure, ensuring the efficient and stable operation of the mine shaft transportation system and improving operational safety.

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached figure: Figure 1 Schematic diagram of the three-dimensional structure of a mine shaft cage linkage car arrester proposed by the present invention Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure of a mine shaft cage linkage car arrester proposed by the present invention Figure 2 ; Figure 3 This is a structural schematic diagram of a connecting rod 1, a connecting rod 2, and an L-shaped plate of a mine shaft cage linkage car arrester proposed by the present invention; Figure 4 This is a structural diagram of the track, frame, and sub-frame of a mine shaft cage linkage car arrester proposed by the present invention; Figure 5 This is a schematic structural diagram of a gas diffusion layer of a mine shaft cage linkage arrester proposed by the present invention; Figure 6 This is a structural diagram of the mounting base, spring, and air hole of a mine shaft cage linkage car arrester proposed by the present invention; Figure 7This is a schematic diagram of the separation structure of the rotating shaft and the connecting plate of a mine shaft cage linkage car arrester proposed by the present invention; Figure 8 This is a schematic diagram of the separation structure of the position sensor and the rotating shaft 1 of a mine shaft cage linkage car arrester proposed by the present invention; Figure 9 This is a schematic structural diagram of the air hole 2 of a mine shaft cage linkage car arrester proposed by the present invention; Figure 10 This is a structural schematic diagram of a single-head cam of a mine shaft cage linkage car arrester proposed by the present invention; Figure 11 This is a structural schematic diagram of the rotating shaft 2 of a mine shaft cage linkage car arrester proposed by the present invention.

[0023] In the figure: 1, frame; 11, sub-frame; 12, track; 13. Mounting seat; 130. Active area; 131. Rotating shaft 1; 1311. First section; 1312. Second section; 132. Stop block; 1321. Air hole 1; 1322. Air hole 2; 1323. Connecting plate; 133. Spring; 134. Position sensor; 14. Rotating shaft 2; 141. Connecting seat; 15. Cylinder; 151. Intake pipe; 152. Pressure sensor; 153. L-shaped plate; 154. U-shaped connecting block; 155. Connecting rod 1; 156. Single-head cam; 16. Double-ended cam; 161. Connecting rod 2; 2. Gas diffusion layer. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0025] The following is combined with Figure 1 -Attached Figure 11 , describes in detail the technical solutions provided by each embodiment of the present invention.

[0026] Example 1: Reference Figures 1-11 , a mine shaft cage linkage car arrester, specifically comprising: Basic frame assembly: a frame 1 is provided below the track 12, and mounting seats 13 are installed on the frames 1 outside the two tracks 12. A rotating shaft 131 is provided inside the mounting seat 13, and a car blocking block 132 is rotatably connected to the rotating shaft 131. A spring 133 is provided on the rotating shaft 131. The rotating shaft 131 includes a first section 1311 and a second section 1312. The diameter of the first section 1311 is larger than the diameter of the second section 1312. The first section 1311 extends into the active area 130 of the mounting seat 13, and the car blocking block 132 is provided. It is located at the second section 1312 close to the first section 1311, and the car block 132 is located in the active area 130. One end of the rotating shaft 131 is threadedly connected to a nut, and the spring 133 is located between the side wall of the mounting seat 13 and the nut. When the mine car wheel collides with the car block 132, the car block 132 collides with the first section 1311, pulling the rotating shaft 131 to squeeze the spring 133, providing buffer damping for the contact between the mine car and the car block 132, reducing the instantaneous load of the mine car impact on the car block 132 and the transmission components, and reducing mechanical damage.

[0027] Driving assembly: including a rotating shaft 14 rotatably connected to the frame 1, a connecting seat 141 is installed on the frame 1, and both ends of the rotating shaft 14 are rotatably connected to the connecting seat 141, and a double-headed cam 16 and a single-headed cam 156 are installed on the rotating shaft 14, and the two are vertically distributed. Specifically, a keyway is provided on the rotating shaft 14, and corresponding keyways are also provided on the inner hole walls of the double-headed cam 16 and the single-headed cam 156. The double-headed cam 16 and the single-headed cam 156 are fixed to the rotating shaft 14 by the cooperation of the keyway and the key; the connecting plate 1323 on the blocking block 132 and the double-headed cam 16 are rotatably connected to the U-shaped connecting block 154, so the connecting plate 1323 and the double-headed cam 16 is connected with a connecting rod 2 161 through a U-shaped connecting block 154, and both ends of the connecting rod 2 161 are provided with external threads, which are threadedly connected to the U-shaped connecting block 154, and a locking nut is threadedly connected to the connecting rod 2 161; a cylinder 15 is installed on the frame 1, and the execution end of the cylinder 15 is hinged to the L-shaped plate 153 through the U-shaped connecting block 154, and the other end of the L-shaped plate 153 is connected to the single-head cam 156 through a connecting rod 1 155, and the L-shaped plate 153 and the single-head cam 156 are both hinged with a U-shaped connecting block 154, and the two ends of the connecting rod 1 155 are respectively threadedly connected to the U-shaped connecting blocks 154 on the L-shaped plate 153 and the single-head cam 156 to form a complete transmission chain.

[0028] A sub-frame 11 is installed on one side of the frame 1 , and the cylinder 15 and the L-shaped plate 153 are located in the sub-frame 11 , and the end of the cylinder 15 is rotatably connected to the sub-frame 11 .

[0029] Among them, it should be noted that there is a certain movable gap between the U-shaped connecting block 154 and the double-headed cam 16, the single-headed cam 156, the L-shaped plate 153, and the connecting plate 1323, so that when the car block 132 is impacted by the mine car wheel, the car block 132 can have a certain displacement space and will not break or bend the connecting rod 155 and the connecting rod 2 161.

[0030] Dust cleaning component: Air hole 1321 is provided on both sides of the vehicle blocking block 132, and air hole 2 1322 is provided on the front face. Both air hole 1321 and air hole 2 1322 are connected to the mine compressed air circuit; when the vehicle blocking block 132 is turned over and approaches the track 12, the air outlet end of air hole 1321 faces the surface of the track 12, and the surface of the track 12 is sprayed with air for cleaning; air hole 2 1322 faces the outer side of the track 12, and the ejected gas is reflected by the track 12 to form a gas diffusion layer 2, covering the mounting seat 13 and surrounding components, thereby reducing the intrusion of dust into the rotating gap.

[0031] Monitoring unit: A pressure sensor 152 is connected in series to the intake pipe 151 of the cylinder 15 via a three-way joint to monitor the pressure in the cylinder working chamber. A position sensor 134 is installed on the mounting base 13 on one side of the stop block 132 to monitor the flip position of the stop block 132 and prevent it from flipping out of position when activated. A laser dust sensor is installed on the frame 1 outside the track 12. The monitoring range covers the area below the track 12 and the installation area of ​​the pressure sensor 152 and position sensor 134. Among them, the position sensor 134 uses an inductive proximity switch to sense the metal surface of the vehicle blocking block 132 and output a signal; the sampling frequency of the laser dust sensor is 1 time / second.

[0032] During use, when the car block 132 needs to be activated, the executing end of the cylinder 15 shortens and pulls the L-shaped plate 153 to rotate the L-shaped plate 153. When the L-shaped plate 153 rotates, it pushes the connecting rod 155. The connecting rod 155 then pushes the rotating shaft 2 14 to rotate through the single-headed cam 156. When the rotating shaft 2 14 rotates, the double-headed cam 16 and the frame 1 tend to be horizontal. At this time, the connecting rod 2 161 is pushed by the force and transmits the force to the car block 132, so that the car block 132 rotates on the mounting seat 13 close to the track 12, so that a part of the car block 132 is located on the track 12, thereby limiting or fixing the mine car on the track 12.

[0033] When it is necessary to remove the blocking block 132 from the track 12, the actuator end of the cylinder 15 pushes the L-shaped plate 153 to remove the blocking block 132 from the track 12; It is important to understand that referring to Figure 11 The connection between the execution end of the cylinder 15 and the L-shaped plate 153 is dislocated, and the cylinder 15 is lower than the mounting surface of the L-shaped plate 153 to avoid collision between the connecting rod 155 and the cylinder 15.

[0034] When the vehicle block 132 approaches the track 12, air is supplied to the air hole 1321 and the air hole 2 1322 through the air path of the mine compressed gas equipment. The gas in the air hole 1321 is ejected to sweep the surface of the track 12 to remove dust accumulation, thereby preventing dust from overflowing and abnormal wear of the track 12 when the mine car contacts it; and the air hole 2 1322 faces the outer side of the track 12, and the ejected gas is reflected by the outer side of the track 12 to form a large-area gas diffusion layer 2, covering key rotating parts such as the mounting seat 13, the rotating shaft 131, and the connecting rod 2 161, thereby preventing dust from invading the gap and reducing friction and wear.

[0035] In some embodiments, the logic for determining abnormal status of the drive assembly monitored by the pressure sensor 152 and the position sensor 134 includes: Assume that the reference pressure value of the pressure sensor 152 is P0. P0 is the value of the pressure sensor 152 after three tests in a clean and wear-free state. The reference pressure value is recorded. The normal threshold value of the pressure sensor 152 is P0×(1-Δ1) to P0×(1+Δ1), where Δ1 is the normal fluctuation deviation threshold value, Δ1=10%. When the monitoring value of the pressure sensor 152 is greater than the reference pressure value P0×(1+Δ2), and there is no signal change from the two position sensors 134, it is determined to be abnormal sticking, where Δ2 is the preset sticking deviation threshold Δ2≥50%; When the monitoring value of the pressure sensor 152 is greater than the reference pressure value P0×(1+Δ3), and Δ3>Δ2, it is determined to be severe jamming, where Δ3 is the severe jamming deviation threshold, Δ3=100%; When the pressure sensor 152 monitoring value is less than the reference pressure value P0×(1-Δ5), and Δ5>Δ 4， When there is no signal change from both position sensors 134 , it is determined that the connecting rods 161 on both sides are loose, where Δ5 is a severe pressure loss deviation threshold, Δ4=30%, Δ5=60%; When the detection value of the pressure sensor 152 is between P0×(1-Δ5) and P0×(1-Δ1), and there is no signal change from the position sensor 134 on one side, it is determined that the connecting rod 2 161 on one side is loose, where Δ5 is the preset severe pressure loss deviation threshold Δ5≥60%, and Δ1 is the normal fluctuation deviation threshold Δ1≤10%.

[0036] In some embodiments, the drive component abnormal state determination logic further includes: When the monitoring value of the pressure sensor 152 is normal, the signal of the position sensor 134 fluctuates and the blocking block 132 has not reached the specified position, it is determined that the adjustment spacing of the connecting rod 155 is too large or too small, resulting in the double-headed cam 16 being unable to be level with the frame 1 and requiring maintenance. The spacing of the connecting rod 155 may change due to the vibration generated by the operation of the mine car. When the monitoring value of the pressure sensor 152 is less than the reference pressure value P0×(1-Δ5) and the signal of the position sensor 134 changes normally, it is determined that the pressure sensor 152 is faulty.

[0037] In some embodiments, the drive component abnormal state judgment logic further includes: A clean air pipe is provided on the frame 1, and the air outlet end of the clean air pipe faces the position sensor 134; After cleaning the air pipe and cleaning the position sensor 134, if there is still no signal from the position sensor 134, it is determined that the position sensor 134 is faulty; After the cleaning air pipe cleans the position sensor 134, if the position sensor 134 signal is restored, it is determined to be a false alarm caused by dust obstruction, wherein the start of the cleaning air pipe is triggered based on the concentration monitoring result of the laser dust sensor; A laser dust sensor is provided on the frame 1 outside the track 12. When the dust concentration detected by the laser dust sensor is greater than the dust warning threshold, a dust accumulation warning is issued under the track 12, reminding the staff to clean the dust under the track 12 in time to avoid excessive dust accumulation, which will cause dust to be raised when the air hole 1322 is exhausted. The baseline dust concentration is C0, which is the ambient dust concentration when no mining car passes around the car blocker. C0=10mg / m 3 ; Dust warning threshold: when the monitoring concentration is greater than C0×(1+Δ C ) triggers an early warning, Δ C is the dust deviation threshold, Δ C =200%.

[0038] In some embodiments, the monitoring data of the laser dust sensor is used to assist in determining the fault status of the pressure sensor 152. The auxiliary judgment logic includes: When the pressure sensor 152 monitoring value is less than the reference pressure value P0×(1-Δ5), and Δ5>Δ 4， And the position sensor 134 signal is normal, if the laser dust sensor detects that the dust concentration in the pressure sensor 152 installation area is less than C0×(1+Δ C ), it is first determined that the pressure sensor 152 is faulty.

[0039] In some embodiments, the monitoring data of the laser dust sensor is used to assist in determining the fault status of the position sensor 134. The auxiliary judgment logic includes: When the position sensor 134 has no signal output, if the dust concentration detected by the laser dust sensor is greater than C0×(1+Δ C ), the cleaning air pipe is controlled to perform jet cleaning on the position sensor 134. If the signal of the position sensor 134 is restored after cleaning, it is determined that the temporary signal abnormality is caused by dust obstruction; When the position sensor 134 has no signal output, if the laser dust sensor detects that the current dust concentration is ≤ C0×(1+Δ C ), but if there is still no signal from the position sensor 134 for 5-10 seconds after cleaning, dust interference is eliminated and it is determined that the position sensor 134 is faulty.

[0040] Therefore, through the dual-parameter monitoring of "pressure sensor 152 + position sensor 134" combined with quantitative threshold logic, it is possible to distinguish between abnormal jamming (pressure exceeds the benchmark by 50% and the position of the vehicle block 132 does not change), serious jamming (pressure exceeds the benchmark by 100%), loose connecting rod 2 161 (pressure is 40%-60% lower than the benchmark and the position signal is abnormal), improper adjustment of the spacing of connecting rod 155 and other mechanical faults.

[0041] The present invention addresses the dust pollution and fault monitoring problems faced by car arresters in harsh mining environments. Instead of simply increasing the cleaning frequency or strengthening the structural strength, the device adopts a comprehensive solution of active dust prevention and control + multi-parameter intelligent monitoring + adaptive fault diagnosis.

[0042] In terms of dust control, the system cleverly utilizes the structure of the track block 132 to design dual air holes (air hole 1321 and air hole 2 1322), which act on the surface of the track 12 and around the rotating components, respectively, to provide comprehensive dust protection. In terms of fault monitoring, it integrates multi-dimensional data such as pressure, position, and dust concentration to establish a quantitative fault diagnosis logic, enabling precise identification of the cause from the fault phenomenon. This innovative approach, which deeply integrates structural design, aerodynamic principles, and intelligent monitoring, breaks through the limitations of traditional single-function designs of track blockers.

[0043] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the present invention can make slight changes or modifications to equivalent embodiments using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A mine shaft cage linkage car arrester, comprising a frame (1) arranged below a track (12), characterized in that: Also includes: Mounting seats (13) are respectively mounted on the frames (1) outside the two rails (12); A rotating shaft (131) is sleeved in the mounting seat (13); A car block (132) is rotatably connected to the first rotating shaft (131), and a spring (133) is sleeved on the first rotating shaft (131) to provide buffering damping for the car block (132); A driving assembly for driving the vehicle blocking block (132) to flip on the mounting seat (13) and approach the surface of the track (12); Air holes (1321) are respectively provided on both sides of the vehicle blocking block (132) for cleaning the surface of the track (12); A second air hole (1322) is provided on the front end surface of the vehicle blocking block (132) and is used to form a gas diffusion layer (2) with the outer side surface of the track (12) when the vehicle blocking block (132) is turned over and close to the track (12), so as to clean dust at the mounting seat (13); The monitoring unit comprises a pressure sensor (152) and a position sensor (134), wherein the pressure sensor (152) is used to monitor the working pressure of the drive assembly, and the position sensor (134) is used to monitor the flipping position of the vehicle blocking block (132). The monitoring unit determines an abnormal state of the drive assembly based on the monitoring results.

2. A mine shaft cage linkage car arrester according to claim 1, characterized in that: The driving assembly comprises a second rotating shaft (14) rotatably connected to the frame (1), a double-headed cam (16) being mounted on the second rotating shaft (14), and two connecting rods (161) being mounted on the double-headed cam (16), one end of each of the two connecting rods (161) being connected to a connecting plate (1323) on an adjacent vehicle blocking block (132).

3. A mine shaft cage linkage car arrester according to claim 2, characterized in that: The driving assembly further comprises a cylinder (15) mounted on the frame (1), an L-shaped plate (153) being rotatably connected to the frame (1), an actuating end of the cylinder (15) being connected to the L-shaped plate (153), a single-headed cam (156) being mounted on the second rotating shaft (14), the single-headed cam (156) being connected to the L-shaped plate (153) via a connecting rod (155), and the single-headed cam (156) and the double-headed cam (16) being vertically distributed.

4. A mine shaft cage linkage car arrester according to claim 3, characterized in that: The pressure sensor (152) is mounted on an intake pipe (151) close to the cylinder (15) and is used to monitor the real-time pressure of the working chamber of the cylinder (15). The position sensor (134) is mounted on a mounting seat (13) located on one side of the vehicle block (132).

5. The mine shaft cage linkage car arrester according to claim 4, characterized in that: The judgment logic for monitoring the abnormal state of the drive component through the pressure sensor (152) and the position sensor (134) includes: Assume that the reference pressure value of the pressure sensor (152) is P0, P0 is the stable pressure value when the car arrester operates smoothly in a clean and wear-free state, and the normal threshold value of the pressure sensor (152) is P0×(1-Δ1) to P0×(1+Δ1), where Δ1 is the normal fluctuation deviation threshold value, Δ1=10%; When the monitoring value of the pressure sensor (152) is greater than the reference pressure value P0×(1+Δ2), and there is no signal change in the two position sensors (134), it is determined to be abnormal jamming, wherein Δ2 is a preset jamming deviation threshold value Δ2≥50%; when the monitoring value of the pressure sensor (152) is greater than the reference pressure value P0×(1+Δ3), and Δ3>Δ2, it is determined to be severe jamming, wherein Δ3 is a severe jamming deviation threshold value, Δ3=100%; When the monitoring value of the pressure sensor (152) is less than the reference pressure value P0×(1-Δ5), and Δ5>Δ 4， When there is no signal change from both position sensors (134), it is determined that the connecting rod 2 (161) on both sides is loose, wherein Δ5 is a severe pressure loss deviation threshold, Δ4=30%; Δ5=60%; When the detection value of the pressure sensor (152) is between P0×(1-Δ5) and P0×(1-Δ1), and there is no signal change in the position sensor (134) on one side, it is determined that the second connecting rod (161) on one side is loose, wherein Δ5 is a preset severe pressure loss deviation threshold Δ5≥60%, and Δ1 is a normal fluctuation deviation threshold Δ1≤10%.

6. The mine shaft cage linkage car arrester according to claim 5, characterized in that: The drive component abnormal state judgment logic also includes: When the monitoring value of the pressure sensor (152) is normal, the signal of the position sensor (134) fluctuates and the vehicle blocking block (132) does not reach the specified position, it is determined that the adjustment distance of the connecting rod (155) is too large or too small; When the monitoring value of the pressure sensor (152) is less than the reference pressure value P0×(1-Δ5) and the signal of the position sensor (134) changes normally, it is determined that the pressure sensor (152) is faulty.

7. The mine shaft cage linkage car arrester according to claim 6, characterized in that: The drive component abnormal state judgment logic also includes: A clean air pipe is provided on the frame (1), and an air outlet end of the clean air pipe faces the position sensor (134); After the cleaning air pipe cleans the position sensor (134), if the position sensor (134) still has no signal, it is determined that the position sensor (134) is faulty; After the cleaning air pipe cleans the position sensor (134), if the position sensor (134) signal is restored, it is determined to be a false alarm caused by dust obstruction, wherein the activation of the cleaning air pipe is triggered based on the concentration monitoring result of the laser dust sensor.

8. The mine shaft cage linkage car arrester according to claim 7, characterized in that: A laser dust sensor is provided on the frame (1) located outside the track (12). When the dust concentration detected by the laser dust sensor is greater than a dust warning threshold, a dust accumulation warning is issued below the track (12).

9. The mine shaft cage linkage car arrester according to claim 8, characterized in that: The monitoring data of the laser dust sensor is used to assist in determining the fault state of the pressure sensor (152).

10. The mine shaft cage linkage car arrester according to claim 8, characterized in that: Assisting in determining the fault state of the position sensor (134) through monitoring data of the laser dust sensor; When the position sensor (134) has no signal output, if the laser dust sensor detects that the current dust concentration is ≤ C0×(1+Δ c ), but if the position sensor (134) still has no signal for 5-10 seconds after cleaning, dust interference is eliminated and it is determined that the position sensor (134) is faulty.

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