Device for detecting overtime fault of band-type brake of mining elevator

Abstract

The utility model discloses a mining elevator band-type brake overtime fault detection device, which relates to the technical field of mining elevator detection, and comprises an explosion-proof shell, a sealing sleeve and a connecting groove which is arranged on the back surface of the sealing sleeve and is fixedly connected with the surface of the explosion-proof shell, and the inner wall of the explosion-proof shell is fixedly connected with an oil pressure sensor. The inner wall of the explosion-proof shell is fixedly connected with a connecting spring, one end of the connecting spring is fixedly connected with a connecting seat, the inner wall of the connecting seat is fixedly connected with a mainboard, the surface of the connecting seat is fixedly connected with a connecting sleeve, and the inner wall of the connecting sleeve is fixedly connected with a damping sleeve. When the elevator works, the vibration is large, the main board vibrates, the connecting spring and the buffer spring deform and buffer at the same time, the damping sleeve and the damping rod slide and generate damping, the main board is quickly restored to a stable state, and therefore the situation that the main board is damaged due to the fact that the vibration stress reaches the limit is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mine hoist detection, in particular to a mine hoist brake timeout fault detection device. Background Art

[0002] Mine hoist refers to the main transportation equipment that connects the underground and the ground in mining projects. Mine hoist is a lifting machine installed on the ground, which drives the lifting container along the shaft or ramp with the help of wire rope. It is used to lift coal, ore, gangue in vertical and inclined shafts, as well as to lift and lower personnel, materials, tools and equipment. At present, with the rapid development of computer technology, automated monitoring methods, scientific and perfect display protection functions, and the maturity of non-contact detection technology, the full digital monitoring of gate gaps has gradually become the main monitoring method for the gate gaps of hydraulic disc gates in mines. Foreign mining product suppliers have long abandoned contact detection through limit switches. In the past two years, domestic mine hoists have also adopted non-contact detection technology and transformed the original gate protection system.

[0003] In the prior art, the mining hoist brake timeout fault detection device generates vibration when the hoist is in use, and the detection device is easily affected by the vibration during operation, thereby reducing the service life of the device. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that the detection device is easily affected by vibration during operation, thereby reducing the service life of the device, and proposes a mine hoist brake timeout fault detection device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mine hoist brake timeout fault detection device, comprising an explosion-proof shell, a sealing sleeve and a connecting groove arranged on the back side of the sealing sleeve and fixedly connected to the surface of the explosion-proof shell, the inner wall of the explosion-proof shell is fixedly connected with an oil pressure sensor, the inner wall of the explosion-proof shell is fixedly connected with a connecting spring, one end of the connecting spring is fixedly connected with a connecting seat, the inner wall of the connecting seat is fixedly connected with a main board, the surface of the connecting seat is fixedly connected with a connecting sleeve, the inner wall of the connecting sleeve is fixedly connected with a damping sleeve, the inner wall of the explosion-proof shell is fixedly connected with a damping rod tightly matched with the damping sleeve, the inner wall of the damping rod is fixedly connected with a rigid rod, and the surface of the damping rod is provided with a buffer spring.

[0006] As a further description of the above technical solution:

[0007] The back of the explosion-proof housing is provided with an installation cavity, and the inner wall of the installation cavity is fixedly connected with a speaker.

[0008] As a further description of the above technical solution:

[0009] A protective steel net is fixedly connected to the inner wall of the installation cavity, and a transparent protective cover is fixedly connected to the center of the protective steel net.

[0010] As a further description of the above technical solution:

[0011] An alarm light is fixedly connected to the inner wall of the transparent protective cover, and a wear-resistant layer is arranged on the surface of the transparent protective cover.

[0012] As a further description of the above technical solution:

[0013] The front side of the sealing sleeve is provided with an installation groove, and the inner wall of the installation groove is inlaid with a display screen.

[0014] As a further description of the above technical solution:

[0015] A connecting pipe is fixedly connected to the lower surface of the explosion-proof housing, and a detection end of the oil pressure sensor is communicated with the connecting pipe.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the connecting pipe is provided with an internal thread, and the inner wall of the internal thread is threadedly connected with a connecting piece.

[0018] As a further description of the above technical solution:

[0019] One end of the connecting piece is fixedly connected to a mounting tube, and an anti-oxidation layer is provided on the surface of the mounting tube.

[0020] As a further description of the above technical solution:

[0021] A hexagonal block is fixedly connected to the surface of the mounting tube, and a rounded corner is arranged on the surface of the hexagonal block.

[0022] As a further description of the above technical solution:

[0023] A fixing pipe communicating with the mounting pipe is disposed on the lower surface of the hexagonal block, and one end of the fixing pipe is fixedly connected with a butt joint pipe.

[0024] The utility model has the following beneficial effects:

[0025] 1. Compared with the prior art, the mine hoist brake timeout fault detection device has a large vibration when the hoist is working, which will cause the main board to vibrate, and at the same time, the connecting spring and the buffer spring will be deformed for buffering, and the damping sleeve and the damping rod will slide to generate damping, so that the main board will quickly return to a stable state, thereby avoiding the main board from being damaged due to the vibration stress reaching the limit.

[0026] 2. Compared with the prior art, the mine hoist brake timeout fault detection device adopts non-contact detection. When a fault occurs, the horn sounds an alarm, the alarm light flashes to remind the alarm position, the transparent protective cover protects the alarm light, making it difficult to be damaged, and the protective steel mesh protects the horn, making it difficult to be damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the mining hoist brake timeout fault detection device proposed by the utility model;

[0028] Figure 2 A side view of the internal structure of the explosion-proof housing of the mining hoist brake timeout fault detection device proposed by the utility model;

[0029] Figure 3 This is a cross-sectional view of a rigid rod of a mining hoist brake timeout fault detection device proposed by the utility model;

[0030] Figure 4 This is a rear view of the sealing sleeve of the mining hoist brake timeout fault detection device proposed by the utility model;

[0031] Figure 5 This is a diagram of the connection pipe of the mining hoist brake timeout fault detection device proposed by the utility model being turned upside down;

[0032] Figure 6 The utility model is a schematic diagram of the installation pipe structure of the mining hoist brake timeout fault detection device.

[0033] Legend:

[0034] 1. Explosion-proof housing; 2. Sealing sleeve; 3. Oil pressure sensor; 4. Connecting spring; 5. Connecting seat; 6. Main board; 7. Connecting sleeve; 8. Damping rod; 9. Buffer spring; 10. Installation cavity; 11. Speaker; 12. Protective steel mesh; 13. Transparent protective cover; 14. Alarm light; 15. Damping sleeve; 16. Rigid rod; 17. Connecting groove; 18. Installation groove; 19. Display screen; 20. Connecting pipe; 21. Internal thread; 22. Connector; 23. Installation pipe; 24. Hexagonal block; 25. Fixing pipe; 26. Butt pipe. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0037] Example:

[0038] Reference Figure 1-6 The utility model provides a mining hoist brake timeout fault detection device: comprises an explosion-proof housing 1, a sealing sleeve 2 and a connecting groove 17 arranged on the back of the sealing sleeve 2 and fixedly connected to the surface of the explosion-proof housing 1, the inner wall of the explosion-proof housing 1 is fixedly connected with an oil pressure sensor 3, the inner wall of the explosion-proof housing 1 is fixedly connected with a connecting spring 4, one end of the connecting spring 4 is fixedly connected with a connecting seat 5, the inner wall of the connecting seat 5 is fixedly connected with a main board 6, the surface of the connecting seat 5 is fixedly connected with a connecting sleeve 7, the connecting sleeve 7 makes it difficult for the damping sleeve 15 to be deformed, the inner wall of the connecting sleeve 7 is fixedly connected with the damping sleeve 15, the inner wall of the explosion-proof housing 1 is fixedly connected with The damping sleeve 15 is tightly matched with the damping rod 8, and the inner wall of the damping rod 8 is fixedly connected with a rigid rod 16. The surface of the damping rod 8 is provided with a buffer spring 9. The front of the sealing sleeve 2 is provided with a mounting groove 18, and the inner wall of the mounting groove 18 is inlaid with a display screen 19. The rigid rod 16 makes it difficult for the damping rod 8 to undergo plastic deformation. When the hoist is working, the vibration is large, which will cause the main board 6 to vibrate, and at the same time, the connecting spring 4 and the buffer spring 9 will be deformed for buffering. The damping sleeve 15 slides with the damping rod 8 to generate damping, so that the main board 6 quickly returns to a stable state, thereby avoiding the main board 6 from being damaged due to the vibration stress reaching the limit.

[0039] An installation cavity 10 is provided on the back of the explosion-proof housing 1, a speaker 11 is fixedly connected to the inner wall of the installation cavity 10, a protective steel mesh 12 is fixedly connected to the inner wall of the installation cavity 10, a transparent protective cover 13 is fixedly connected to the center of the protective steel mesh 12, an alarm light 14 is fixedly connected to the inner wall of the transparent protective cover 13, and a wear-resistant layer is provided on the surface of the transparent protective cover 13. When a fault occurs, the speaker 11 emits an alarm sound, and the alarm light 14 flashes to remind the alarm position. The transparent protective cover 13 protects the alarm light 14, making it difficult to be damaged, and the protective steel mesh 12 protects the speaker 11, making it difficult to be damaged.

[0040] A connecting pipe 20 is fixedly connected to the lower surface of the explosion-proof housing 1, and the detection end of the oil pressure sensor 3 is connected to the connecting pipe 20. The inner wall of the connecting pipe 20 is provided with an internal thread 21, and the inner wall of the internal thread 21 is threadedly connected with a connecting piece 22. One end of the connecting piece 22 is fixedly connected to a mounting pipe 23, and the surface of the mounting pipe 23 is provided with an anti-oxidation layer. A hexagonal block 24 is fixedly connected to the surface of the mounting pipe 23, and the surface of the hexagonal block 24 is provided with rounded corners. A fixed pipe 25 connected to the mounting pipe 23 is provided on the lower surface of the hexagonal block 24, and one end of the fixed pipe 25 is fixedly connected to a butt pipe 26, connected with the hoist oil circuit through the butt joint pipe 26, the connector 22, the mounting pipe 23, the hexagonal block 24, the fixing pipe 25 and the butt joint pipe 26 are separated from the explosion-proof housing 1 for transportation, saving packaging volume. When the brake relay stops working and the pressure of the corresponding oil pressure sensor 3 is less than the set "oil pressure threshold for judging the brake", after the set "brake timeout detection delay" time, if a certain brake gap value is always greater than the set "gap threshold for judging the brake" within the set "brake fault filtering time", the system reports a brake timeout fault, and the fault relay outputs a fault signal.

[0041] Working principle: It is connected to the oil circuit of the hoist through the butt pipe 26. When the hoist is working, the vibration is large, which will cause the main board 6 to vibrate, and at the same time, the connecting spring 4 and the buffer spring 9 are deformed to buffer. The damping sleeve 15 and the damping rod 8 slide to generate damping, so that the main board 6 quickly returns to a stable state, thereby avoiding the main board 6 from being damaged due to the vibration stress reaching the limit. When the brake relay stops working and the corresponding oil pressure sensor 3 pressure is less than the set "oil pressure threshold for judging the brake", after the set "brake timeout detection delay" time, if a certain brake gap value is always greater than the set "gap threshold for judging the brake" within the set "brake fault filter time", the system reports a brake timeout fault, the fault relay outputs a fault signal, the speaker 11 emits an alarm sound, the alarm light 14 flashes to remind the alarm position, the transparent protective cover 13 protects the alarm light 14, so that the alarm light 14 is not easily damaged, and the protective steel mesh 12 protects the speaker 11, so that the speaker 11 is not easily damaged.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting a timeout fault of a brake of a mining hoist, comprising an explosion-proof housing (1), a sealing sleeve (2), and a connecting groove (17) arranged on the back of the sealing sleeve (2) and fixedly connected to the surface of the explosion-proof housing (1), wherein an oil pressure sensor (3) is fixedly connected to the inner wall of the explosion-proof housing (1), and characterized in that: The inner wall of the explosion-proof housing (1) is fixedly connected to a connecting spring (4), one end of the connecting spring (4) is fixedly connected to a connecting seat (5), the inner wall of the connecting seat (5) is fixedly connected to a main board (6), the surface of the connecting seat (5) is fixedly connected to a connecting sleeve (7), the inner wall of the connecting sleeve (7) is fixedly connected to a damping sleeve (15), the inner wall of the explosion-proof housing (1) is fixedly connected to a damping rod (8) that closely matches the damping sleeve (15), the inner wall of the damping rod (8) is fixedly connected to a rigid rod (16), and the surface of the damping rod (8) is provided with a buffer spring (9).

2. The mining hoist brake timeout fault detection device according to claim 1 is characterized in that: The back of the explosion-proof housing (1) is provided with a mounting cavity (10), and the inner wall of the mounting cavity (10) is fixedly connected with a speaker (11).

3. The mining hoist brake timeout fault detection device according to claim 2 is characterized in that: A protective steel mesh (12) is fixedly connected to the inner wall of the installation cavity (10), and a transparent protective cover (13) is fixedly connected to the center of the protective steel mesh (12).

4. The mining hoist brake timeout fault detection device according to claim 3 is characterized in that: An alarm light (14) is fixedly connected to the inner wall of the transparent protective cover (13), and a wear-resistant layer is provided on the surface of the transparent protective cover (13).

5. The mining hoist brake timeout fault detection device according to claim 1 is characterized in that: The front side of the sealing sleeve (2) is provided with a mounting groove (18), and the inner wall of the mounting groove (18) is inlaid with a display screen (19).

6. The mining hoist brake timeout fault detection device according to claim 1 is characterized in that: A connecting pipe (20) is fixedly connected to the lower surface of the explosion-proof housing (1), and a detection end of the oil pressure sensor (3) is in communication with the connecting pipe (20).

7. The mining hoist brake timeout fault detection device according to claim 6 is characterized in that: The inner wall of the connecting pipe (20) is provided with an internal thread (21), and the inner wall of the internal thread (21) is threadedly connected with a connecting piece (22).

8. The mining hoist brake timeout fault detection device according to claim 7 is characterized in that: One end of the connecting piece (22) is fixedly connected to a mounting tube (23), and an anti-oxidation layer is provided on the surface of the mounting tube (23).

9. The mining hoist brake timeout fault detection device according to claim 8, characterized in that: A hexagonal block (24) is fixedly connected to the surface of the mounting tube (23), and the surface of the hexagonal block (24) is provided with rounded corners.

10. The mining hoist brake timeout fault detection device according to claim 9, characterized in that: A fixing pipe (25) communicating with the mounting pipe (23) is provided on the lower surface of the hexagonal block (24), and one end of the fixing pipe (25) is fixedly connected to a butt joint pipe (26).

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