Real-time detection device for belt conveyor brake

Abstract

The present invention discloses a real-time detection device for the brake of a belt conveyor, which relates to the field of detection devices. The device includes a fixed block and a brake motor arranged on one side of the fixed block. The top of the fixed block is respectively provided with a first push rod and a second push rod. The first push rod and the second push rod are arranged in parallel. One end of the first push rod and the second push rod extends out of the fixed block, and the extended end is located at the top of the brake motor. A slide groove is provided on the side of the first push rod close to the second push rod. In the actual operation of the present invention, when the brake is opened by the brake motor, the electric push rod is started, driving the extended plate to descend, and the extended plate drives the magnetic proximity switch to descend, causing the telescopic part to stretch. At this time, the magnetic proximity switch will approach the permanent magnet and the energized coil inside the sliding box. Under the magnetic action of the permanent magnet and the coil, the magnetic proximity switch is attracted, and the belt conveyor can start normally.

Description

Technical Field

[0001] The present invention relates to the field of detection devices, in particular to a real-time detection device for a belt conveyor brake. Background Art

[0002] Belt conveyors are widely used transportation equipment in coal mines. According to Article 374 of the Coal Mine Safety Regulations, belt conveyors used in inclined shafts must be equipped with anti-reverse devices and brakes during upward movement. For safety reasons, belt conveyors used in inclined shafts must be equipped with brakes to apply pressure when the belt conveyor stops.

[0003] During belt conveyor operation, the brake shoes are usually in the open position. During operation, a power outage or hydraulic fluid leakage from the electro-hydraulic push rod can easily cause the brake to automatically drop and hold the disc. Alternatively, the brake shoes may not open due to a lack of power to the brake actuator, preventing the belt conveyor from starting. Both of these situations can result in fires and runaway belts.

[0004] Therefore, it is necessary to invent a real-time detection device for the brake of a belt conveyor to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a real-time detection device for the brake of a belt conveyor to solve the problem that during the operation of the belt conveyor, the brake brake automatically falls and holds the brake disc due to power outage or internal leakage of hydraulic oil from the electro-hydraulic push rod, or the brake brake shoe does not open due to the lack of power supply to the brake starter, thus starting the belt conveyor.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a real-time detection device for a brake of a belt conveyor, comprising a fixed block and a brake motor arranged on one side of the fixed block, wherein the top of the fixed block is respectively provided with a first push rod and a second push rod, the first push rod and the second push rod are arranged in parallel, one end of the first push rod and the second push rod extend out of the fixed block, and the extended end is located at the top of the brake motor, the first push rod is provided with a sliding groove on the side close to the second push rod, and the second push rod is provided with a through groove on the side close to the first push rod, a sliding box is slidingly provided between the sliding groove and the through groove, a permanent magnet is provided in the center of the sliding box, coils are provided on both sides of the permanent magnet, the coils are electrically connected, a fixed frame is provided on one side of the top of the brake motor, the fixed frame is U-shaped, the U-shaped opening faces the first push rod, a through opening is provided on one side of the long side of the top of the fixed frame, and a magnetic proximity switch is provided at the bottom end of the long side.

[0007] Preferably, the magnetic proximity switch is arranged on one side of the bottom end of the through opening, a plurality of telescopic parts are provided at the bottom end of the long side, and the magnetic proximity switch is arranged at the bottom end of the telescopic parts.

[0008] Preferably, a wire is provided at the top of the magnetic proximity switch, one end of the wire passes through the fixing frame, and the wire is distributed along the direction of the long side.

[0009] Preferably, a connecting plate is provided on one side of the long side, a sliding rod is provided at the bottom end of the connecting plate, a collar is provided on the side of the magnetic proximity switch close to the connecting plate, and the collar is slidably sleeved on the outer ring of the sliding rod.

[0010] Preferably, an electric push rod is fixedly provided inside the through opening, and a protruding plate is provided on a side of the magnetic proximity switch close to the electric push rod, and the top of the protruding plate is connected to the telescopic end of the electric push rod.

[0011] Preferably, a plurality of fans are provided on a side of the sliding box away from the fixing frame, and air outlets of the plurality of fans are connected to the interior of the sliding box.

[0012] Preferably, a square groove is provided on one side of the sliding box close to the fixing frame, and a ventilation net is provided in the square groove.

[0013] Preferably, a plurality of support rods are evenly arranged at the bottom end of the wire along the long side direction, and an arc-shaped support plate is provided at the top end of the plurality of support rods, and the lower half end of the wire is engaged with the inside of the arc-shaped support plate.

[0014] Preferably, one end of the sliding box extends out of the through slot, a fixing plate is provided on one side of the extending end, and an auxiliary handle is provided at one end of the fixing plate.

[0015] Preferably, the short side of the bottom end of the fixing frame is in contact with the brake motor, and a fixing bolt is provided between the short side and the brake motor. The telescopic member includes a spring and a telescopic rod, and the spring is sleeved on the outside of the telescopic rod.

[0016] Technical effects and advantages of the present invention:

[0017] 1. In actual operation of the present invention, when the brake is opened by the brake motor, the electric push rod is activated, driving the extension plate to descend. The extension plate drives the magnetic proximity switch to descend, causing the telescopic member to stretch. At this time, the magnetic proximity switch approaches the permanent magnet and the energized coil inside the sliding box. Under the magnetic effect of the permanent magnet and the coil, the magnetic proximity switch is attracted, and the belt conveyor can start normally. When the brake is lowered, the electric push rod drives the magnetic proximity switch to rise, and the magnetic proximity switch moves away from the permanent magnet and the coil, the switch is disconnected, and the belt conveyor cannot start normally.

[0018] 2. Furthermore, in order for the electric push rod to vertically drive the magnetic proximity switch to descend and ascend, a collar provided on one side of the magnetic proximity switch can slide on the outer ring of the slide rod. The slide rod can play a guiding role to prevent the telescopic part on the magnetic proximity switch from deviating. In addition, when the coil is energized, magnetic force is generated to enhance the magnetic attraction.

[0019] 3. After the real-time detection device is put into use, on the basis of electrical interlocking, from a technical point of view, an additional insurance is added, which prevents the automatic closing of the brake or the failure to start the belt conveyor during the operation of the belt conveyor, and prevents the brake from rubbing against the brake disc to produce toxic and harmful gases and fire caused by friction, belt conveyor runaway, etc., thereby improving the level of on-site safety management. By using the cheap, affordable and durable magnetic proximity switch seen in daily life, the real-time brake action detection can effectively prevent the misoperation of the equipment output and the occurrence of accidents, and the maintenance is convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the real-time detection device for the brake of a belt conveyor according to the present invention.

[0021] Figure 2 It is a schematic structural diagram of the electric push rod and the auxiliary handle of the present invention.

[0022] Figure 3 For the present invention Figure 2 Schematic diagram of the structure enlarged at point A in the middle.

[0023] Figure 4 It is a structural schematic diagram of the telescopic member and the connecting plate of the present invention.

[0024] In the figure: 1. Fixed block; 2. Brake motor; 3. First push rod; 4. Second push rod; 5. Slide groove; 6. Through groove; 7. Sliding box; 8. Fixed frame; 9. Fixing bolt; 10. Through hole; 11. Electric push rod; 12. Support rod; 13. Wire; 14. Fan; 15. Coil; 16. Permanent magnet; 17. Fixed plate; 18. Auxiliary handle; 19. Telescopic part; 20. Connecting plate; 21. Slide rod; 22. Ring; 23. Extension plate; 24. Magnetic proximity switch; 25. Arc support plate; 26. Ventilation net. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings to clarify the technical solutions in the embodiments of the present invention; although it is clear that the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] The present invention provides Figures 1-4The belt conveyor brake real-time detection device shown includes a fixed block 1 and a brake motor 2 arranged on one side of the fixed block 1, a fixed frame 8 is provided on one side of the top of the brake motor 2, and the top of the fixed block 1 is respectively provided with a first push rod 3 and a second push rod 4. The first push rod 3 and the second push rod 4 are arranged in parallel, and one end of the first push rod 3 and the second push rod 4 extends out of the fixed block 1, and the extended end is located at the top of the brake motor 2. The fixed block 1 can support the first push rod 3 and the second push rod 4, so as to facilitate the first push rod 3 and the second push rod 4 to be close to the fixed frame 8.

[0027] Furthermore, a slide groove 5 is provided on the side of the first push rod 3 close to the second push rod 4, and a through groove 6 is provided on the side of the second push rod 4 close to the first push rod 3. A sliding box 7 is slidingly arranged between the slide groove 5 and the through groove 6. A permanent magnet 16 is provided at the center of the sliding box 7. Coils 15 are provided on both sides of the permanent magnet 16. The coils 15 are electrically connected, and the fixing frame 8 is set to be U-shaped, and the U-shaped opening faces the first push rod 3. A through opening 10 is provided on one side of the long side of the top of the fixing frame 8, and a magnetic proximity switch 24 is provided at the bottom end of the long side. The coil 15 can be connected to the power supply through an electric wire. When the coil 15 is energized, magnetic force will be generated. When the coil 15 is de-energized, the magnetic force will be lost. One end of the sliding box 7 extends out of the through groove 6, and a fixing plate 17 is provided on one side of the protruding end, and an auxiliary handle 18 is provided at one end of the fixing plate 17.

[0028] In the actual operation of the present invention, the position of the sliding box 7 can be adjusted as needed. The personnel can push the auxiliary handle 18 to make the sliding box 7 slide between the slide groove 5 and the through groove 6 to adjust the position for easy alignment with the magnetic proximity switch 24. The short side of the bottom end of the fixing frame 8 is in contact with the brake motor 2, and a fixing bolt 9 is provided between the short side and the brake motor 2. The telescopic part 19 includes a spring and a telescopic rod, and the spring is sleeved on the outside of the telescopic rod.

[0029] A magnetic proximity switch 24 is located on one side of the bottom end of the opening 10. Multiple telescopic members 19 are located at the bottom of the long side. A wire 13 is located at the top of the magnetic proximity switch 24. One end of the wire 13 passes through the fixing bracket 8 and extends along the long side. The magnetic proximity switch 24 corresponds to the position of the sliding box 7.

[0030] A connecting plate 20 is provided on one side of the long side, a sliding rod 21 is provided at the bottom end of the connecting plate 20, a ring 22 is provided on the side of the magnetic proximity switch 24 close to the connecting plate 20, the ring 22 is slidably sleeved on the outer ring of the sliding rod 21, an electric push rod 11 is fixedly provided inside the through opening 10, and an extension plate 23 is provided on the side of the magnetic proximity switch 24 close to the electric push rod 11, and the top of the extension plate 23 is connected to the telescopic end of the electric push rod 11.

[0031] In actual operation of the present invention, when the brake is opened by the brake motor 2, the electric push rod 11 is activated, driving the extension plate 23 to descend. The extension plate 23 drives the magnetic proximity switch 24 to descend, causing the telescopic member 19 to stretch. At this time, the magnetic proximity switch 24 approaches the permanent magnet 16 and the energized coil 15 inside the sliding box 7. Under the magnetic effect of the permanent magnet 16 and the coil 15, the magnetic proximity switch 24 is attracted, and the belt conveyor can start normally. When the brake is dropped, the electric push rod 11 drives the magnetic proximity switch 24 to rise, and the magnetic proximity switch 24 moves away from the permanent magnet 16 and the coil 15, the switch is disconnected, and the belt conveyor cannot start normally.

[0032] Furthermore, in order for the electric push rod 11 to vertically drive the magnetic proximity switch 24 to descend and ascend, the ring 22 provided on one side of the magnetic proximity switch 24 can slide on the outer ring of the slide rod 21, and the slide rod 21 can play a guiding role to prevent the telescopic part 19 on the magnetic proximity switch 24 from shifting. In addition, when the coil 15 is energized, magnetic force will be generated to enhance the magnetic attraction.

[0033] Furthermore, a plurality of fans 14 are provided on the side of the sliding box 7 away from the fixed frame 8, and the air outlets of the plurality of fans 14 are connected to the interior of the sliding box 7, and a square groove is provided on the side of the sliding box 7 close to the fixed frame 8, and a ventilation net 26 is provided in the square groove. When the fans 14 are started, the dust accumulated inside the sliding box 7 can be blown away to prevent it from affecting the magnetic attraction of the permanent magnet 16 and the coil 15.

[0034] After the magnetic proximity switch 24 was put into use, an additional insurance was added from a technical perspective on the basis of the electrical interlock, which prevented the automatic closing of the brake or the failure to start the belt conveyor during the operation of the belt conveyor, and prevented the brake from rubbing against the brake disc to produce toxic and harmful gases, fire caused by friction, and belt conveyor runaway, thereby improving the level of on-site safety management.

[0035] Utilizing the inexpensive, durable and everyday magnetic proximity switches 24, real-time brake action detection can effectively prevent equipment misoperation that could lead to accidents, while also making maintenance easy and simple.

[0036] A plurality of support rods 12 are evenly arranged at the bottom end of the wire 13 along the long side direction, and an arc-shaped support plate 25 is arranged at the top end of the plurality of support rods 12. The lower half of the wire 13 is engaged with the inside of the arc-shaped support plate 25, and one end of the wire 13 is connected to the brake motor 2.

[0037] The plurality of support rods 12 can support the wires 13 to prevent the wires 13 from being entangled and bent.

Claims

1. A real-time detection device for a belt conveyor brake, comprising a fixed block (1) and a brake motor (2) arranged on one side of the fixed block (1), characterized in that: The top of the fixed block (1) is provided with a first push rod (3) and a second push rod (4), respectively. The first push rod (3) and the second push rod (4) are arranged in parallel. One end of the first push rod (3) and the second push rod (4) extends out of the fixed block (1), and the extended end is located at the top of the brake motor (2). A sliding groove (5) is provided on the side of the first push rod (3) close to the second push rod (4), and a through groove (6) is provided on the side of the second push rod (4) close to the first push rod (3). There is a gap between the sliding groove (5) and the through groove (6). A sliding box (7) is provided for sliding, a permanent magnet (16) is provided at the center of the sliding box (7), coils (15) are provided on both sides of the permanent magnet (16), and the coils (15) are electrically connected. A fixing frame (8) is provided on one side of the top of the brake motor (2), and the fixing frame (8) is provided in a U-shape, with the U-shaped opening facing the first push rod (3). A through opening (10) is provided on one side of the long side of the top of the fixing frame (8), and a magnetic proximity switch (24) is provided at the bottom end of the long side. A wire (13) is provided at the top end of the magnetic proximity switch (24), one end of the wire (13) passes through the fixing frame (8), and the wire (13) is distributed along the direction of the long side; A connecting plate (20) is provided on one side of the long side, a slide bar (21) is provided at the bottom end of the connecting plate (20), a collar (22) is provided on the side of the magnetic proximity switch (24) close to the connecting plate (20), and the collar (22) is slidably sleeved on the outer ring of the slide bar (21); A plurality of support rods (12) are evenly arranged at the bottom end of the wire (13) along the long side direction, and an arc-shaped support plate (25) is arranged at the top end of the plurality of support rods (12), and the lower half end of the wire (13) is engaged with the inside of the arc-shaped support plate (25).

2. The belt conveyor brake real-time detection device according to claim 1, characterized in that: The magnetic proximity switch (24) is arranged on one side of the bottom end of the through opening (10), a plurality of telescopic members (19) are arranged at the bottom end of the long side, and the magnetic proximity switch (24) is arranged at the bottom end of the telescopic member (19).

3. The belt conveyor brake real-time detection device according to claim 1, characterized in that: An electric push rod (11) is fixedly provided inside the through opening (10), and a protruding plate (23) is provided on a side of the magnetic proximity switch (24) close to the electric push rod (11), and the top of the protruding plate (23) is connected to the telescopic end of the electric push rod (11).

4. The belt conveyor brake real-time detection device according to claim 1, characterized in that: A plurality of fans (14) are provided on a side of the sliding box (7) away from the fixing frame (8), and air outlets of the plurality of fans (14) are in communication with the interior of the sliding box (7).

5. The belt conveyor brake real-time detection device according to claim 1, characterized in that: A square groove is provided on one side of the sliding box (7) close to the fixing frame (8), and a ventilation net (26) is provided in the square groove.

6. The belt conveyor brake real-time detection device according to claim 1, characterized in that: One end of the sliding box (7) extends out of the through slot (6), a fixing plate (17) is provided on one side of the extending end, and an auxiliary handle (18) is provided at one end of the fixing plate (17).

7. The belt conveyor brake real-time detection device according to claim 2, characterized in that: The short side of the bottom end of the fixing frame (8) is fitted with the brake motor (2), and a fixing bolt (9) is provided between the short side and the brake motor (2). The telescopic member (19) includes a spring and a telescopic rod, and the spring is sleeved on the outside of the telescopic rod.

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