Coal mine air compressor fuel cut-off protection device

Abstract

The utility model relates to the technical field of protection devices, in particular to a coal mine air compressor oil cut-off protection device. According to the technical scheme, the oil-gas separator comprises an oil-gas separator and further comprises a rectangular box fixedly installed on the oil-gas separator, an oil level mirror is arranged on the outer side of the rectangular box, a detection assembly for detecting the oil level in the rectangular box is arranged on the outer side of the rectangular box, and a cleaning assembly comprises a movable plate installed in the rectangular box in a sliding mode. And a cleaning roller and a scraping plate are arranged at the bottom of the moving plate. According to the oil-gas separator, the oil level can be visually detected, as the detection assembly is located outside the oil-gas separator, assembly, disassembly and maintenance are convenient, and the installation difficulty of workers is reduced; meanwhile, the inner side of the oil level mirror is cleaned, lubricating oil is prevented from adhering to the inner side of the oil level mirror, and therefore the detection accuracy of the laser sensor is improved, and the oil cut-off protection device can conduct oil cut-off protection rapidly and accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of protection devices, in particular to an oil cut-off protection device for a coal mine air compressor. Background Art

[0002] In coal mine production activities, air compressors are needed to provide power for pneumatic equipment and tools. Due to some safety reasons, air compressors need to use lubricating oil to ensure their stable operation during operation. If these lubricating oils are suddenly interrupted, the performance of the air compressor may be reduced or even damaged and scrapped, which brings serious safety hazards. In this context, researchers have developed an oil-break protection device for air compressors in coal mines to improve the safety of mine production activities. In the prior art, there is an air compressor oil-break protection detection device, whose technical solution includes an oil-gas separator, a detection box, a collection box, and a laser sensor. The detection box is used to determine whether the air compressor is out of oil through a PLC program. A photometric detection module is provided in the collection box. The photometric detection module is used to collect and analyze the detected photometric and transmit the data to the programmable controller PLC. The laser sensor is used to receive the photometric. The invention is easy to install, can detect the oil level more intuitively, has accurate detection, and is sensitive to response; has strong anti-interference ability, is stable and reliable, and has a long service life; improves the safety of the working environment of practitioners; does not require any pipeline changes, and can be directly installed and fixed to reduce costs.

[0003] In the above working process, in order to ensure that the lubricating oil can still provide good lubrication and sealing performance under high pressure, high temperature and high load working conditions, the viscosity of the lubricating oil used in the coal mine air compressor is usually high. When the oil level drops, part of the lubricating oil will adhere to the inside of the oil level mirror, affecting the accuracy of the laser sensor detection, resulting in the oil cut-off protection device being unable to quickly and accurately perform oil cut-off protection. Therefore, we propose an oil cut-off protection device for a coal mine air compressor. Summary of the invention

[0004] The purpose of the utility model is to propose an oil cut-off protection device for a coal mine air compressor to address the problem in the background technology that some lubricating oil will adhere to the inside of the oil level mirror, affecting the accuracy of laser sensor detection, thereby causing the oil cut-off protection device to be unable to quickly and accurately perform oil cut-off protection.

[0005] The technical solution of the utility model is: an oil-break protection device for a coal mine air compressor, including an oil-gas separator, and also including:

[0006] A rectangular box fixedly mounted on the oil-gas separator, an oil level mirror is provided on the outside of the rectangular box, and a detection component for detecting the oil level in the rectangular box is provided on the outside of the rectangular box;

[0007] The cleaning component comprises a moving plate slidably mounted in the rectangular box, and a cleaning roller and a scraper are arranged at the bottom of the moving plate.

[0008] Optionally, a through hole is formed on a side of the rectangular box close to the oil-gas separator, the rectangular box is connected to the oil-gas separator through the through hole, and a tilting block is fixedly installed on the bottom of the rectangular box.

[0009] Optionally, the detection component includes a bracket fixedly mounted on the outside of the oil level mirror, a laser sensor is provided on the bracket, a control box is fixedly mounted on one side of the rectangular box, and an input end of the control box is connected to the laser sensor via a wire.

[0010] Optionally, the cleaning assembly further comprises a slide groove fixedly mounted in the rectangular box, wherein the slide groove is provided with two groups, which are respectively located on both sides of the oil level mirror, and slide plates are fixedly mounted at both ends of the movable plate, and the slide plates are slidably mounted in the slide groove.

[0011] Optionally, an inclined plate is fixedly installed at the bottom of the movable plate, fixed plates are fixedly installed on both sides of the bottom of the inclined plate, a driving shaft is rotatably installed between the fixed plates, a motor for driving the driving shaft to rotate is fixedly installed at the bottom of the inclined plate, and the cleaning roller is fixedly installed on the outside of the driving shaft.

[0012] Optionally, the scraper is fixedly mounted on the bottom of the inclined plate near the oil level mirror, the scraper and the cleaning roller are both in contact with the inner side of the oil level mirror, and a float floating on the oil surface is fixedly mounted on the side of the movable plate away from the oil level mirror.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] 1. The utility model realizes intuitive detection of the oil level through the laser sensor, oil level mirror and control box. Since the detection component is located outside the oil-gas separator, it is easy to load and unload and repair, reducing the installation difficulty of the staff;

[0015] 2. The utility model cleans the inside of the oil level mirror through the rectangular box, the movable plate, the scraper, the cleaning roller and the float, so as to prevent the lubricating oil from adhering to the inside of the oil level mirror when the liquid level drops, thereby improving the accuracy of the laser sensor detection, so that the oil cut-off protection device can quickly and accurately perform oil cut-off protection.

[0016] The utility model realizes intuitive detection of the oil level, and because the detection component is located outside the oil-gas separator, it is easy to load and unload and repair, and reduces the difficulty of installation for workers; at the same time, it realizes the cleaning of the inside of the oil level mirror to prevent lubricating oil from adhering to the inside of the oil level mirror, thereby improving the accuracy of laser sensor detection, so that the oil cut-off protection device can quickly and accurately perform oil cut-off protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Provide the overall structural diagram of the utility model;

[0018] Figure 2 A schematic diagram of the structure of a rectangular box in the utility model is given;

[0019] Figure 3 A schematic diagram of the internal structure of the rectangular box in the utility model is given;

[0020] Figure 4 Given Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] Figure numerals: 1. Oil-gas separator; 2. Rectangular box; 201. Through hole; 3. Oil level mirror; 4. Control box; 5. Laser sensor; 6. Bracket; 7. Tilting block; 8. Slide; 9. Moving plate; 10. Tilting plate; 11. Scraper; 12. Fixed plate; 13. Cleaning roller; 14. Motor; 15. Float. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] It should be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example

[0029] like Figure 1 As shown in FIG. 4 , the utility model proposes an oil cut-off protection device for a coal mine air compressor, comprising an oil-gas separator 1, and also comprising a rectangular box 2 fixedly mounted on the oil-gas separator 1, an oil level mirror 3 being arranged on the outer side of the rectangular box 2, and a detection component for detecting the oil level in the rectangular box 2 being arranged on the outer side of the rectangular box 2.

[0030] Among them, a through hole 201 is opened on one side of the rectangular box 2 close to the oil-gas separator 1, and the rectangular box 2 is connected to the oil-gas separator 1 through the through hole 201. A tilting block 7 is fixedly installed on the bottom of the rectangular box 2. The lubricating oil in the oil-gas separator 1 enters the rectangular box 2 through the through hole 201 on the rectangular box 2. When the lubricating oil level drops, the tilting block 7 facilitates the lubricating oil in the rectangular box 2 to enter the oil-gas separator 1 through the through hole 201.

[0031] In this embodiment, the detection component includes a bracket 6 fixedly installed on the outside of the oil level mirror 3, a laser sensor 5 is provided on the bracket 6, a control box 4 is fixedly installed on one side of the rectangular box 2, and the input end of the control box 4 is connected to the laser sensor 5 through a wire. When the lubricating oil level drops to a set value, the laser sensor 5 transmits a signal to the control box 4, and the output end of the control box 4 is connected to the main control system of the external air compressor. The control box 4 sends a signal to the main control system of the external air compressor, so that the air compressor stops running, thereby realizing oil cut-off protection for the air compressor.

[0032] like Figure 2 As shown in Figure 4, the cleaning component includes a movable plate 9 slidably installed in the rectangular box 2, and a cleaning roller 13 and a scraper 11 are provided at the bottom of the movable plate 9. The cleaning component also includes a slide groove 8 fixedly installed in the rectangular box 2. The slide groove 8 is provided with two groups, which are respectively located on both sides of the oil level mirror 3. Slide plates are fixedly installed at both ends of the movable plate 9, and the slide plates are slidably installed in the slide groove 8. When the movable plate 9 moves downward, the slide plates fixedly installed on both sides of the movable plate 9 slide in the slide groove 8.

[0033] Among them, an inclined plate 10 is fixedly installed at the bottom of the movable plate 9, and fixed plates 12 are fixedly installed on both sides of the bottom of the inclined plate 10. A driving shaft is rotatably installed between the fixed plates 12. A motor 14 for driving the driving shaft to rotate is fixedly installed at the bottom of the inclined plate 10, and a cleaning roller 13 is fixedly installed on the outside of the driving shaft. Start the motor 14 to drive the driving shaft between the fixed plates 12 to rotate, so that the cleaning roller 13 fixedly installed on the outside of the driving shaft rotates to clean the inner side of the oil level mirror 3.

[0034] In addition, a scraper 11 is fixedly installed on the bottom of the inclined plate 10 near the oil level mirror 3. The scraper 11 and the cleaning roller 13 are both in contact with the inner side of the oil level mirror 3. As the movable plate 9 moves, the scraper 11 moves close to the inner side of the oil level mirror 3, thereby further cleaning the inner side of the oil level mirror 3 and preventing the lubricating oil on the inner side of the oil level mirror 3 from affecting the inspection accuracy of the laser sensor 5. A float 15 floating on the oil surface is fixedly installed on the side of the movable plate 9 away from the oil level mirror 3. The material of the float 15 is preferably polyethylene. Since the density of the float 15 is less than the density of the lubricating oil, the float 15 always floats on the liquid surface of the lubricating oil. When the liquid level of the lubricating oil drops, the float 15 moves downward with the drop of the lubricating oil level, thereby driving the movable plate 9 fixedly connected to the float 15 to move downward.

[0035] Working principle: During the working process of the utility model, the lubricating oil in the oil-gas separator 1 enters the rectangular box 2 through the through hole 201 on the rectangular box 2. Since the density of the float 15 is less than the density of the lubricating oil, the float 15 always floats on the liquid surface of the lubricating oil. When the liquid level of the lubricating oil drops, the float 15 moves downward with the drop of the lubricating oil level, driving the movable plate 9 fixedly connected to the float 15 to move downward. At this time, the slides fixedly installed on both sides of the movable plate 9 slide in the slide groove 8, and the motor 14 is started to drive the drive shaft fixedly installed between the fixed plates 12 at the bottom of the inclined plate 10 to rotate, and drive the cleaning roller 13 fixedly installed on the outside of the drive shaft to rotate. At the same time, with the movement of the movable plate 9, the scraper 11 fixedly mounted on the inclined plate 10 moves close to the inner side of the oil level mirror 3, so as to further clean the inner side of the oil level mirror 3 and prevent the lubricating oil on the inner side of the oil level mirror 3 from affecting the inspection accuracy of the laser sensor 5. When the lubricating oil level drops to the set value, the laser sensor 5 transmits a signal to the control box 4. Since the output end of the control box 4 is connected to the main control system of the external air compressor, the control box 4 sends a signal to the main control system of the external air compressor, so that the air compressor stops running, thereby realizing the oil cut-off protection of the air compressor, preventing damage to the air compressor due to oil cut-off, and avoiding safety accidents.

[0036] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A coal mine air compressor oil cut-off protection device, comprising an oil-gas separator (1), characterized in that: Also includes: A rectangular box (2) fixedly mounted on the oil-gas separator (1), an oil level mirror (3) being provided on the outside of the rectangular box (2), and a detection component for detecting the oil level in the rectangular box (2) being provided on the outside of the rectangular box (2); A cleaning component comprises a movable plate (9) slidably mounted in the rectangular box (2), wherein a cleaning roller (13) and a scraper (11) are provided at the bottom of the movable plate (9).

2. The oil cut-off protection device for coal mine air compressor according to claim 1 is characterized in that: A through hole (201) is provided on a side of the rectangular box (2) close to the oil-gas separator (1); the rectangular box (2) and the oil-gas separator (1) are connected via the through hole (201); and a tilting block (7) is fixedly mounted on the bottom of the rectangular box (2).

3. The oil cut-off protection device for coal mine air compressor according to claim 2 is characterized in that: The detection component comprises a bracket (6) fixedly mounted on the outside of the oil level mirror (3), a laser sensor (5) being provided on the bracket (6), a control box (4) being fixedly mounted on one side of the rectangular box (2), an input end of the control box (4) being connected to the laser sensor (5) via a wire.

4. The oil cut-off protection device for coal mine air compressor according to claim 1 is characterized in that: The cleaning assembly also includes a slide groove (8) fixedly installed in the rectangular box (2), and the slide groove (8) is provided with two groups, which are respectively located on both sides of the oil level mirror (3), and slide plates are fixedly installed at both ends of the movable plate (9), and the slide plates are slidably installed in the slide groove (8).

5. The oil cut-off protection device for coal mine air compressor according to claim 4 is characterized in that: An inclined plate (10) is fixedly mounted on the bottom of the movable plate (9), fixed plates (12) are fixedly mounted on both sides of the bottom of the inclined plate (10), a driving shaft is rotatably mounted between the fixed plates (12), a motor (14) for driving the driving shaft to rotate is fixedly mounted on the bottom of the inclined plate (10), and the cleaning roller (13) is fixedly mounted on the outside of the driving shaft.

6. The oil cut-off protection device for coal mine air compressor according to claim 5, characterized in that: The scraper (11) is fixedly mounted on the bottom of the inclined plate (10) on a side close to the oil level mirror (3); the scraper (11) and the cleaning roller (13) are both in contact with the inner side of the oil level mirror (3); and a float (15) floating on the oil surface is fixedly mounted on the side of the movable plate (9) away from the oil level mirror (3).

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