Automatic lubrication electric control device for coal mine electromechanical equipment

Abstract

The utility model discloses an automatic lubricating electric control device for coal mine electromechanical equipment, which comprises an electric lubricating pump assembly, an overflow valve and a pressure sensor are mounted at a lubricating grease outlet of the electric lubricating pump assembly, and the lubricating grease outlet of the electric lubricating pump assembly is connected with a lubricating grease inlet of an electromagnetic oil feeder assembly through a pipeline. And the electromagnetic oil feeder assembly is communicated with the lubricating point. According to the utility model, the problems of high labor intensity, incapability of realizing single-point single control and incapability of accurately monitoring the oil injection quantity in the existing lubrication mode are solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine electromechanical equipment, and relates to an automatic lubrication electrical control device for coal mine electromechanical equipment. Background Technology

[0002] Various electromechanical equipment are used underground in coal mines, such as belt conveyor motors and rollers, water pump motors and pumps, and fan motors. Due to the complex and harsh working conditions in coal mines, characterized by heavy loads and high speeds, it is essential to strengthen the daily maintenance and upkeep of equipment to ensure its normal operation. Proper lubrication of electromechanical equipment is an extremely important part of equipment maintenance and upkeep.

[0003] Currently, lubrication of coal mine equipment mainly relies on traditional manual lubrication or progressive distributors. These existing methods suffer from low reliability and high labor intensity. Different sizes of equipment require different amounts of lubrication and different lubrication cycles, but current methods cannot achieve single-point control or accurately monitor the amount of oil injected. Therefore, situations such as over-lubricating or under-lubricating can occur, leading to excessive wear, resource waste, and in severe cases, equipment malfunction. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic lubrication control device for coal mine electromechanical equipment, which solves the problems of high labor intensity, inability to achieve single-point single control, and inability to accurately monitor the amount of oil injected in existing lubrication methods.

[0005] The technical solution adopted by this utility model is an automatic lubrication control device for coal mine electromechanical equipment, including an electric lubrication pump assembly. An overflow valve and a pressure sensor are installed at the lubricating grease outlet of the electric lubrication pump assembly. The lubricating grease outlet of the electric lubrication pump assembly is connected to the lubricating grease inlet of the electromagnetic oiler assembly through a pipeline. The electromagnetic oiler assembly is connected to the lubrication point.

[0006] The features of this utility model also include:

[0007] The electromagnetic lubricator assembly includes an oil circuit board, with four sets of valve bodies on the top of the oil circuit board. Four sets of flow monitoring mechanisms are correspondingly installed above the four sets of valve bodies, and four sets of electromagnets are correspondingly installed on one side of the four sets of valve bodies.

[0008] Each valve body contains a piston, with a spring coaxially connected to one end of the piston. Above the piston are channels A and B, and below the piston are channels A (outlet), B (inlet), and C (outlet).

[0009] The oil circuit board has an oil outlet A and an oil outlet B at both ends, and an oil inlet in the middle.

[0010] The oil inlet is connected to the oil inlet channel.

[0011] Oil outlet channel A is connected to oil outlet A, and oil outlet channel B is connected to oil outlet B.

[0012] Each flow monitoring unit includes a flow monitoring unit body, inside which is installed an inductive iron core and a proximity switch mounting base. A proximity switch is installed on the proximity switch mounting base, and a plug is provided on one side of the inductive iron core.

[0013] The flow monitoring mechanism is divided into chamber A and chamber B by the induction core. Chamber A is connected to channel A, and chamber B is connected to channel B.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) The electromagnetic oiler assembly adopts a plunger-type oil injection, which can determine the amount of oil injected per stroke.

[0016] (2) The electromagnetic oiler assembly is controlled by an electromagnetic valve, which can accurately control the frequency of piston reciprocating motion and indirectly monitor the amount of lubricating grease injected into each outlet.

[0017] (3) Each outlet of the electromagnetic oiler assembly is equipped with a solenoid valve, which can realize independent control of each outlet without affecting other outlets.

[0018] (3) The electric lubrication pump assembly has a weighing sensor that can monitor the remaining amount of lubricating grease in real time.

[0019] (4) A pressure sensor is connected to the outlet of the electric lubrication pump assembly to monitor the pressure of the lubricating grease in real time.

[0020] (5) An overflow valve is connected to the outlet of the electric lubrication pump assembly. When the pressure exceeds the set pressure, the pressure is released to prevent the electric lubrication pump from being overloaded and damaged. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the automatic lubrication electrical control device for coal mine electromechanical equipment according to this utility model;

[0022] Figure 2 This is a front view of the electromagnetic oiler assembly of the automatic lubrication control device for coal mine electromechanical equipment according to this utility model;

[0023] Figure 3 This is a cross-sectional view of the electromagnetic oiler assembly of the automatic lubrication control device for coal mine electromechanical equipment according to this utility model.

[0024] In the diagram, 1. Mine-use explosion-proof and intrinsically safe programmable controller, 2. Electric lubrication pump assembly, 3. Mine-use explosion-proof and intrinsically safe vacuum starter, 4. Main unit of automatic lubrication electrical control device for coal mine electromechanical equipment, 5. Electromagnetic oiler assembly, 6. Weighing sensor, 7. Overflow valve, 8. Pressure sensor, 9. Pipeline, 10. Communication cable, 11. Electromagnet, 12. Flow monitoring mechanism, 13. Valve body, 14. Oil circuit board, 15. Induction core, 16. Piston, 17. Spring, 18. Proximity switch, 19. Proximity switch mounting base, 20. Flow monitoring mechanism body, 21. Plug, 22. Oil outlet A, 23. Oil outlet B, 24. Oil inlet, 25. Oil outlet channel A, 26. Oil outlet channel B, 27. Oil inlet channel, 28. Channel A, 29. Channel B, 30. Chamber A, 31. Chamber B. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] This utility model relates to an automatic lubrication electrical control device for coal mine electromechanical equipment, such as... Figure 1 As shown, the device includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubrication grease outlet of the electric lubrication pump assembly 2. The lubrication grease outlet of the electric lubrication pump assembly 2 is connected to the lubrication grease inlet of the electromagnetic oiler assembly 5 by a pipeline 9. Each outlet of the electromagnetic oiler assembly 5 is connected to a lubrication point by a pipeline 9.

[0027] In order to ensure the normal operation of the device, the mine explosion-proof and intrinsically safe programmable controller 1 is connected to the main unit 4 of the automatic lubrication control device for coal mine electromechanical equipment and the mine explosion-proof and intrinsically safe vacuum starter 3 by communication cable 10. The mine explosion-proof and intrinsically safe vacuum starter 3 is connected to the electric lubrication pump assembly 2 by communication cable 10. The main unit 4 of the automatic lubrication control device for coal mine electromechanical equipment is connected to the electromagnetic oiler assembly 5 by communication cable 10.

[0028] like Figure 2 As shown, the electromagnetic lubricator assembly 5 includes one oil circuit board 14, four sets of valve bodies 13, four sets of flow monitoring mechanisms 12, and four sets of electromagnets 11. The four sets of valve bodies 13 are respectively mounted above the oil circuit board 14, the four sets of flow monitoring mechanisms 12 are respectively mounted above the valve bodies 13, and the four sets of electromagnets 11 are respectively mounted on the right side of the valve bodies 13. The oil circuit board 14 has one oil inlet 24, four sets of oil outlets A22, and four sets of oil outlets B23.

[0029] like Figure 3As shown, a piston 16 and a spring 17 are installed inside the valve body 13. The spring 17 is coaxially mounted on the left side of the piston 16. Above the piston 16, there are channels A28 and B29. Below the piston 16, there are oil outlet channel A25, oil inlet channel 27, and oil outlet channel B26 in sequence. Oil outlet channel A25 communicates with oil outlet A22, and oil outlet channel B26 communicates with oil outlet B23.

[0030] The flow monitoring mechanism 12 includes a flow monitoring mechanism body 20, an inductive iron core 15 installed inside the flow monitoring mechanism body 20, a proximity switch mounting base 19 installed on the left side of the flow monitoring mechanism body 20, a proximity switch 18 installed on the left side of the proximity switch mounting base 19, and a plug 21 installed on the right side of the flow monitoring mechanism body 20. The interior of the flow monitoring mechanism body 20 is divided into chamber A30 and chamber B31 by the inductive iron core 15. Chamber A30 communicates with channel A28, and chamber B31 communicates with channel B29.

[0031] In this utility model, an automatic lubrication control device for coal mine electromechanical equipment, after the electric lubrication pump assembly 2 starts working, the grease passes through the overflow valve 7 and the pressure sensor 8, and then flows into the electromagnetic oiler assembly 5 through the pipeline 9, and finally flows from the oil outlet of the electromagnetic oiler assembly 5 to each lubrication point.

[0032] The load cell is installed below the electric lubrication pump assembly 2 and is connected to the mining explosion-proof and intrinsically safe programmable controller 1 via the communication cable 10.

[0033] To achieve single-point single-control, this utility model is equipped with an electromagnetic oiler assembly 5.

[0034] In order to monitor the amount of grease remaining in the lubrication pump, this utility model is equipped with a weighing sensor 6.

[0035] In order to monitor the pressure of the grease output by the lubrication pump, this utility model is equipped with a pressure sensor 8.

[0036] The working process of this utility model automatic lubrication device for coal mine electromechanical equipment is as follows: after the electric lubrication pump assembly 2 is started, it delivers lubricating grease from the pipeline 9 to the electromagnetic oiler assembly 5. Then, the lubricating grease is delivered from each oil outlet of the electromagnetic oiler 5 to the lubrication point according to the set program.

[0037] Lubricating grease enters the oil circuit board 14 through the oil inlet 24 of the electromagnetic oiler assembly 5, and then enters the oil inlet channel 27 of the valve body 13. When the electromagnet 11 is energized, it generates magnetic force to push the piston 16 to the left. At this time, the oil inlet channel 27 is connected to channel A28, and channel B29 is connected to the oil outlet channel B26. High-pressure lubricating grease enters the chamber 30 through channel A28. Under the action of pressure, it pushes the induction core 15 to the right, and then pushes the lubricating grease in the chamber B31 through channel B29 and the oil outlet channel B26, flowing out from the oil outlet B23. When the electromagnetic force of the electromagnet 11 is de-energized and disappears, the piston 16 moves to the right under the action of the spring 17. At this time, the oil inlet channel 27 is connected to channel B29, and channel A28 is connected to the oil outlet channel A25. High-pressure lubricating grease enters chamber B31 through channel B29. Under pressure, it pushes the induction core 15 to the left, then pushes the lubricating grease in chamber A30 through channel A28 and outlet channel A25, flowing out from outlet A22. This process constitutes one stroke of the electromagnetic lubricator assembly 5. When the electromagnet 11 is energized at a certain frequency, lubricating grease flows continuously from outlets A22 and B23. Simultaneously, during the entire operation, the induction core 15 moves left and right, the number of which can be monitored by proximity switch 18. The volume of lubricating grease pushed out by the induction core 15 in a single stroke is constant, so the total amount of lubricating grease at the outlet can be calculated by monitoring the number of movements of the induction core 15.

[0038] The mine-use explosion-proof and intrinsically safe programmable controller 1 is connected to the mine-use explosion-proof and intrinsically safe vacuum starter 3 and the electric lubrication pump assembly 2 by a communication cable 10, and can control the start and stop of the electric lubrication pump assembly 2 according to the program.

[0039] The mine-use explosion-proof and intrinsically safe programmable controller 1 is connected to the main unit 4 of the automatic lubrication control device for coal mine electromechanical equipment and the electromagnetic oiler assembly 5 by a communication cable 10, and can control the start and stop of the electromagnetic oiler assembly 5 according to the program.

[0040] Example 1

[0041] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0042] Example 2

[0043] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0044] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0045] Example 3

[0046] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0047] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0048] Each valve body 13 is equipped with a piston 16. A spring 17 is coaxially sleeved at one end of the piston 16. Channels A28 and B29 are provided above the piston 16. Oil outlet channel A25, oil inlet channel 27 and oil outlet channel B26 are provided below the piston 16 in sequence.

[0049] Example 4

[0050] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0051] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0052] Each valve body 13 is equipped with a piston 16. A spring 17 is coaxially sleeved at one end of the piston 16. Channels A28 and B29 are provided above the piston 16. Oil outlet channel A25, oil inlet channel 27 and oil outlet channel B26 are provided below the piston 16 in sequence.

[0053] The oil circuit board 14 has an oil outlet A22 and an oil outlet B23 at both ends, and an oil inlet 24 in the middle.

[0054] Example 5

[0055] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0056] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0057] Each valve body 13 is equipped with a piston 16. A spring 17 is coaxially sleeved at one end of the piston 16. Channels A28 and B29 are provided above the piston 16. Oil outlet channel A25, oil inlet channel 27 and oil outlet channel B26 are provided below the piston 16 in sequence.

[0058] The oil circuit board 14 has an oil outlet A22 and an oil outlet B23 at its two ends, and an oil inlet 24 in the middle. The oil inlet 24 is connected to the oil inlet channel 27.

[0059] Example 6

[0060] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0061] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0062] Each valve body 13 is equipped with a piston 16. A spring 17 is coaxially sleeved at one end of the piston 16. Channels A28 and B29 are provided above the piston 16. Oil outlet channel A25, oil inlet channel 27 and oil outlet channel B26 are provided below the piston 16 in sequence.

[0063] The oil circuit board 14 has an oil outlet A22 and an oil outlet B23 at its two ends, and an oil inlet 24 in its middle. The oil inlet 24 is connected to the oil inlet channel 27. The oil outlet channel A25 is connected to the oil outlet A22, and the oil outlet channel B26 is connected to the oil outlet B23.

[0064] Example 7

[0065] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0066] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0067] Each valve body 13 is equipped with a piston 16. A spring 17 is coaxially sleeved at one end of the piston 16. Channels A28 and B29 are provided above the piston 16. Oil outlet channel A25, oil inlet channel 27 and oil outlet channel B26 are provided below the piston 16 in sequence.

[0068] The oil circuit board 14 has an oil outlet A22 and an oil outlet B23 at its two ends, and an oil inlet 24 in its middle. The oil inlet 24 is connected to the oil inlet channel 27. The oil outlet channel A25 is connected to the oil outlet A22, and the oil outlet channel B26 is connected to the oil outlet B23.

[0069] Each flow monitoring mechanism 12 includes a flow monitoring mechanism body 20. Inside the flow monitoring mechanism body 20, there is an induction iron core 15 and a proximity switch mounting base 19. A proximity switch 18 is installed on the proximity switch mounting base 19. A plug 21 is provided on one side of the induction iron core 15.

[0070] Example 8

[0071] An automatic lubrication control device for coal mine electromechanical equipment includes an electric lubrication pump assembly 2. An overflow valve 7 and a pressure sensor 8 are installed at the lubricating grease outlet of the electric lubrication pump assembly 2. The lubricating grease outlet of the electric lubrication pump assembly 2 is connected to the lubricating grease inlet of the electromagnetic oiler assembly 5 through a pipeline 9. The electromagnetic oiler assembly 5 is connected to the lubrication point.

[0072] The electromagnetic oil supply assembly 5 includes an oil circuit board 14, with four sets of valve bodies 13 on the top of the oil circuit board 14, four sets of flow monitoring mechanisms 12 on the top of the four sets of valve bodies 13, and four sets of electromagnets 11 on one side of the four sets of valve bodies 13.

[0073] Each valve body 13 is equipped with a piston 16. A spring 17 is coaxially sleeved at one end of the piston 16. Channels A28 and B29 are provided above the piston 16. Oil outlet channel A25, oil inlet channel 27 and oil outlet channel B26 are provided below the piston 16 in sequence.

[0074] The oil circuit board 14 has an oil outlet A22 and an oil outlet B23 at its two ends, and an oil inlet 24 in its middle. The oil inlet 24 is connected to the oil inlet channel 27. The oil outlet channel A25 is connected to the oil outlet A22, and the oil outlet channel B26 is connected to the oil outlet B23.

[0075] Each flow monitoring mechanism 12 includes a flow monitoring mechanism body 20. Inside the flow monitoring mechanism body 20, there is an induction iron core 15 and a proximity switch mounting base 19. A proximity switch 18 is installed on the proximity switch mounting base 19. A plug 21 is provided on one side of the induction iron core 15.

[0076] The flow monitoring mechanism body 20 is divided into chamber A30 and chamber B31 by the induction iron core 15. Chamber A30 is connected to channel A28, and chamber B31 is connected to channel B29.

Claims

1. An automatic lubrication control device for coal mine electromechanical equipment, characterized in that: The electric lubrication pump assembly (2) is equipped with an overflow valve (7) and a pressure sensor (8) at the lubrication outlet of the electric lubrication pump assembly (2). The lubrication outlet of the electric lubrication pump assembly (2) is connected to the lubrication inlet of the electromagnetic oiler assembly (5) through a pipeline (9). The electromagnetic oiler assembly (5) is connected to the lubrication point. The electromagnetic oiler assembly (5) includes an oil circuit board (14), with four sets of valve bodies (13) above the oil circuit board (14), four sets of flow monitoring mechanisms (12) correspondingly arranged above the four sets of valve bodies (13), and four sets of electromagnets (11) correspondingly arranged on one side of the four sets of valve bodies (13). Each valve body (13) is equipped with a piston (16), and a spring (17) is coaxially sleeved at one end of the piston (16). Channel A (28) and channel B (29) are provided above the piston (16), and oil outlet channel A (25), oil inlet channel (27) and oil outlet channel B (26) are provided below the piston (16) in sequence. The oil circuit board (14) has an oil outlet A (22) and an oil outlet B (23) at both ends, and an oil inlet (24) in the middle. The oil inlet (24) is connected to the oil inlet channel (27); The oil outlet channel A (25) is connected to the oil outlet A (22), and the oil outlet channel B (26) is connected to the oil outlet B (23); Each flow monitoring mechanism (12) includes a flow monitoring mechanism body (20), an induction iron core (15) and a proximity switch mounting base (19) are installed inside the flow monitoring mechanism body (20), a proximity switch (18) is installed on the proximity switch mounting base (19), and a plug (21) is provided on one side of the induction iron core (15). The main body (20) of the flow monitoring mechanism is divided into chamber A (30) and chamber B (31) by the induction iron core (15). Chamber A (30) is connected to channel A (28), and chamber B (31) is connected to channel B (29).

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