A novel electric gear pump device for electric shovels and dedicated lubrication carts

Abstract

This utility model discloses a novel electric gear pump device for electric shovel lubrication truck, relating to the technical field of oil filling trucks for mining equipment. It includes a power compartment, a grease compartment, and a hose reel compartment. The power compartment includes a diesel generator set, a grease lubricating oil tank, a black oil lubricating oil tank, an electric gear pump set, an ultrasonic level gauge, a hose reel, a color paperless recorder, an electrical control cabinet, and a fire extinguisher. A ground-based oil replenishment system is installed on the side of the grease compartment. Ultrasonic level gauges are installed on the three oil tanks within the grease compartment to monitor the oil level in real time. These level signals are transmitted to the color paperless recorder installed on the electrical control cabinet panel. When absorbing oil, if the oil level in the tank is lower than the minimum absorbing level, the paperless recorder will issue a low-level alarm, reminding the operator to stop refueling to prevent the oil pump from running dry and being damaged. When replenishing oil in the tank, the paperless recorder will issue a high-level alarm, prompting the operator to stop oil supply to avoid oil overflow.

Description

Technical Field

[0001] This utility model relates to the technical field of oil injection trucks for mining equipment, and in particular to a new type of electric gear pump device special lubrication truck for electric shovels. Background Technology

[0002] In open-pit mining operations, electric shovels, as key large-scale excavating equipment, undertake heavy material excavation and loading / unloading tasks. To ensure the continuous, stable, and efficient operation of electric shovels, the reliability of their lubrication system is crucial. In practical applications, the equipment typically requires the following technologies:

[0003] An oil storage mechanism used to store large quantities of lubricating oil or grease;

[0004] The pumping mechanism draws lubricating oil from the oil tank and pressurizes it to deliver it to various lubrication points of the electric shovel.

[0005] The filtration system is used to filter out large particulate impurities from the lubricating oil.

[0006] The control mechanism is used to achieve overall control of the lubrication vehicle;

[0007] Electric shovel lubrication trucks are mainly used for grease replenishment and injection in open-pit mine electric shovels, trucks, and construction machinery. Currently, electric shovel lubrication trucks in mining areas use pneumatic or hydraulic devices, which have high refueling efficiency and reduce secondary oil pollution.

[0008] However, in low temperatures during winter, the pneumatic or hydraulic pumps of pneumatic or hydraulic devices are prone to freezing at the outlet due to the heat absorbed during the compression of working air. This requires manual operation such as using a heater to raise the temperature, resulting in low refueling efficiency and secondary pollution. In addition, the pneumatic or hydraulic pumps of pneumatic or hydraulic devices are noisy and can be harmful to operators. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a novel electric gear pump device for electric shovel lubrication carts. It solves the technical problems of pneumatic or hydraulic devices freezing at the outlet due to heat absorption during air compression in low winter temperatures, requiring manual operation such as using a heater to raise the temperature, resulting in low refueling efficiency and secondary pollution. Additionally, the high noise level of pneumatic or hydraulic devices can be harmful to operators.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A novel electric gear pump device for electric shovel lubrication truck includes a power compartment, a grease compartment, and a reel compartment. The power compartment includes a diesel generator set, a grease lubricating oil tank, a black oil lubricating oil tank, an electric gear pump set, an ultrasonic level gauge, a hose reel, a color paperless recorder, an electrical control cabinet, and a fire extinguisher. The grease compartment is equipped with a ground oil replenishment system at its side.

[0012] Preferably, the power compartment is equipped with a fire extinguisher, and the surface of the electrical control cabinet is equipped with at least two knobs;

[0013] The grease chamber is equipped with two grease lubricating oil tanks, a black oil lubricating oil tank, three electric gear pump sets, and three ultrasonic level gauges.

[0014] The reel compartment is equipped with three high-pressure oil pipes, a cable, and at least two reel bodies. Each high-pressure oil pipe has an oil replenishment port at its end.

[0015] Preferably, the electric gear pump set consists of three units, installed at the bottom of the lubricating oil tank, and the electric gear pump set comprises a gear pump body, a motor body, a reducer, and a coupling;

[0016] The oil replenishment system is provided in two sets. An independent air compressor is installed on the side of the oil replenishment system. A high-pressure air pipe is fixedly installed on the side of the oil replenishment system. The oil replenishment system is equipped with a double-arm lifting device and an oil tank. A control cabinet is installed on the side of the oil replenishment system.

[0017] Compared with the prior art, the present invention has the following beneficial effects;

[0018] In this invention, an electric system and electrical control are used. The power is taken from the power provided by the diesel generator set to drive each electric gear pump set, thereby completing the oil injection process of each oil product. The advantages of electric gear pumps are that there is no freezing phenomenon, low noise, long service life and high efficiency, which solves the problems of frozen outlet and high noise of pneumatic or hydraulic pumps.

[0019] In this invention, ultrasonic level gauges are installed on three oil tanks within the grease compartment to monitor the oil level in real time. These level signals are transmitted to a color paperless recorder installed on the control panel of the electrical control cabinet. When oil is being drawn in, if the oil level in the tank is lower than the minimum level for drawing in oil, the paperless recorder will issue a low-level alarm to remind the operator to stop refueling and prevent the oil pump from running dry and being damaged. When oil is being added to the tank, if the oil level in the tank reaches the appropriate level, the paperless recorder will issue a high-level alarm to remind the operator to stop supplying oil and prevent the tank from overflowing. Attached Figure Description

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a structural diagram of the main body of this utility model;

[0022] Figure 2 This is a structural diagram of the electrical control cabinet of this utility model;

[0023] Figure 3 This is a structural diagram of the electric gear pump unit of this utility model;

[0024] Figure 4 This is a structural diagram of the oil replenishment system of this utility model.

[0025] In the diagram: 1. Power compartment; 2. Grease compartment; 3. Hoop reel compartment; 4. Diesel generator set; 5. Grease lubricating oil tank; 6. Black oil lubricating oil tank; 7. Electric gear pump set; 8. Ultrasonic level gauge; 9. Hoop reel; 10. Color paperless recorder; 11. Hoop reel body; 12. Electrical control cabinet; 13. Knob; 14. Cable; 15. Fire extinguisher; 16. Oil filler port; 17. Gear pump body; 18. Motor body; 19. Reducer; 20. Coupling; 21. Control cabinet; 22. Oil replenishment system; 23. Independent air compressor; 24. High-pressure air duct; 25. Double-arm lifting device; 26. High-pressure oil pipe; 27. Oil drum. Detailed Implementation

[0026] This application provides a novel electric gear pump device for a dedicated lubrication cart for electric shovels. It effectively solves the problem of frozen outlets in pneumatic or hydraulic pumps during low-temperature winter conditions, caused by heat absorption during air compression. This necessitates manual operation such as using a heater to raise the temperature, resulting in low refueling efficiency and secondary pollution. Furthermore, the high noise level of pneumatic or hydraulic pumps can be hazardous to operators. This new device utilizes an electric system with electrical control, powered by a diesel generator set, to drive various electric gear pumps, thus completing the refueling process for different oils. The advantages of electric gear pumps include no freezing, low noise, long lifespan, and high efficiency, effectively resolving the issues of frozen outlets and high noise levels associated with current pneumatic or hydraulic pumps. Example

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application embodiment effectively solves the technical problems that, in low-temperature winter conditions, the pneumatic pump of a pneumatic or hydraulic device is prone to freezing at the outlet due to heat absorption during the compression of working air, requiring manual operation such as using a heater to assist in warming up, resulting in low refueling efficiency and secondary pollution. Furthermore, the high noise level of the pneumatic or hydraulic pump can pose a hazard to operators. The overall approach is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a novel electric gear pump device for electric shovel lubrication truck, including a power compartment 1, a grease compartment 2, and a reel compartment 3. The power compartment 1 includes a diesel generator set 4, a grease lubricating oil tank 5, a black oil lubricating oil tank 6, an electric gear pump set 7, an ultrasonic level gauge 8, a hose reel 9, a color paperless recorder 10, an electrical control cabinet 12, and a fire extinguisher 15. A ground oil replenishment system 22 is provided on the side of the grease compartment 2. The electric power generated by the diesel generator set 4 drives the electric gear pump set 7, which completes the external refueling of various oils through a high-pressure oil pipe 26 and a reel body 11. The cable 14 and the reel body 11 are provided to provide power to the electric gear pump set 7 in case of emergency.

[0029] The diesel generator set 4 provides power to the electric gear pump set 7. Exhaust gases are directly discharged outside the vehicle body, and the exhaust pipes are all insulated for safety. The installation location is reasonable, facilitating daily operation, inspection, and maintenance. It is also equipped with an external power supply to allow for refueling of the entire vehicle if the generator set fails to start.

[0030] The power compartment 1 is equipped with a fire extinguisher 15. The interior layout facilitates ventilation, heat dissipation, and disassembly and maintenance. The surface of the electrical control cabinet 12 is equipped with at least two knobs 13. By receiving signals from the ultrasonic level gauges 8 installed on the three oil tanks, the liquid levels of the three oil tanks are displayed, making it easy to observe the oil tank levels. When the oil tank level is lower than the minimum level for oil suction, the color paperless recorder 10 will sound a low-level alarm to remind the operator to stop refueling. When the oil tank is replenished, the color paperless recorder 10 will sound a high-level alarm when the oil tank level reaches the appropriate position to remind the operator to stop refueling and prevent the oil tank from overflowing due to overfilling.

[0031] The grease tank 2 is equipped with two grease lubricating oil tanks 5, a black oil lubricating oil tank 6, three electric gear pump sets 7, and three ultrasonic level gauges 8.

[0032] The inside of the reel compartment 3 is equipped with three high-pressure oil pipes 26, a cable 14, and at least two reel bodies 11. Each high-pressure oil pipe 26 has an oil replenishment port 16 at its end.

[0033] There are three electric gear pump sets 7, which are installed at the bottom of the lubricating oil tank. The electric gear pump set 7 consists of a gear pump body 17, a motor body 18, a reducer 19 and a coupling 20.

[0034] Two oil replenishment systems 22 are provided. An independent air compressor 23 is installed on the side of the oil replenishment system 22. A high-pressure air pipe 24 is fixedly installed on the side of the oil replenishment system 22. The oil replenishment system 22 is equipped with a double-arm lifting device 25 and an oil tank 27. A control cabinet 21 is installed on the side of the oil replenishment system 22. The high-pressure air pipe 24 provides power to the double-arm lifting device 25 of each oil replenishment system 22. Each oil replenishment system 22 has a separate control cabinet 21. The oil replenishment pump is a gear pump body 17, which is used to complete the oil replenishment process from the oil tank 27 to the lubricating oil tank on the vehicle. When oil replenishment is required, a high-pressure oil pipe 26 is led from the oil replenishment system 22 on the ground and connected to the corresponding oil replenishment port 16 on the vehicle. A one-way valve is provided, and the connection is threaded.

[0035] Working principle:

[0036] The first step is to install the diesel generator set 4 in the power compartment 1, which generates electricity to drive the electric gear pump set 7. During operation, the exhaust gas is directly discharged to the outside of the vehicle, and the exhaust pipe is insulated for safety protection to ensure safe use. At the same time, it is equipped with an external power supply (including cable 14 and reel body 11). When the diesel generator set 4 cannot start, an external power supply can be connected to ensure that the refueling task of the whole vehicle is not affected.

[0037] The lubrication tank 2 of the lubrication vehicle contains two grease tanks 5 and one black oil tank 6. The electric power generated by the diesel generator set 4 drives the electric gear pump set 7 installed at the bottom of the tank. Each electric gear pump set 7 consists of a gear pump body 17, a motor body 18, a reducer 19, a coupling 20, a high-pressure oil pipe 26, and a cable 14. After the motor body 18 is started, it drives the gear pump body 17 to run. The speed and torque are adjusted by the reducer 19, and the power is transmitted through the coupling 20 to draw out the lubricating oil in the tank, pressurize it, and send it out through the high-pressure oil pipe 26.

[0038] The operator arrives at the reel compartment 3 and operates the corresponding buttons or knobs 13 on the electrical control cabinet 12 to control the operation of the electric gear pump unit 7, thereby completing the lubrication operation of the electric shovel. The high-pressure oil pipe 26 is connected to the lubrication point of the electric shovel to accurately deliver the lubricating oil to the correct location.

[0039] The second step involves installing ultrasonic level gauges 8 on the three oil tanks within the grease compartment 2 to monitor the oil level in real time. These level signals are transmitted to a color paperless recorder 10 installed on the panel of the electrical control cabinet 12. When oil is being drawn in, if the oil level in the tank is lower than the minimum level for oil drawing, the color paperless recorder 10 will issue a low-level alarm to remind the operator to stop refueling and prevent the oil pump from running dry and being damaged. When oil is being added to the tank, if the oil level in the tank reaches the appropriate level, the color paperless recorder 10 will issue a high-level alarm to remind the operator to stop supplying oil and prevent the tank from overflowing.

[0040] Two oil replenishment systems 22 are installed on the ground. Each oil replenishment system 22 is equipped with a separate control cabinet 21. A separate air compressor 23 generates high-pressure gas, which provides power to the double-arm lifting device 25 of the oil replenishment system 22 through the high-pressure air pipe 24, realizing the lifting and lowering operation of the oil replenishment equipment. When replenishing oil, the gear pump body 17 is selected as the oil replenishment pump to draw lubricating oil from the oil tank 27. The high-pressure oil pipe 26 of the ground oil replenishment system 22 is connected to the corresponding oil replenishment port 16 on the vehicle (equipped with a one-way valve and using a threaded connection to prevent oil backflow). The gear pump body 17 is started to deliver the lubricating oil to the lubricating oil tank on the vehicle to complete the oil replenishment process.

[0041] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A novel electric gear pump device for electric shovel lubrication cart, comprising a power compartment (1), a grease compartment (2), and a reel compartment (3), characterized in that, The power compartment (1) includes a diesel generator set (4), a grease lubricating oil tank (5), a black oil lubricating oil tank (6), an electric gear pump set (7), an ultrasonic level gauge (8), a hose reel (9), a color paperless recorder (10), an electrical control cabinet (12), and a fire extinguisher (15). A ground oil replenishment system (22) is provided on the side of the grease compartment (2).

2. The novel electric gear pump device and electric shovel lubrication cart as described in claim 1, characterized in that, The power compartment (1) is equipped with a fire extinguisher (15), and the surface of the electrical control cabinet (12) is equipped with at least two knobs (13).

3. The novel electric gear pump device for electric shovels and its dedicated lubrication cart as described in claim 1, characterized in that, The grease tank (2) is equipped with two grease lubricating oil tanks (5), a black oil lubricating oil tank (6), three electric gear pump sets (7), and three ultrasonic level gauges (8).

4. The novel electric gear pump device for electric shovels and its dedicated lubrication cart as described in claim 1, characterized in that, The inside of the reel compartment (3) is provided with three high-pressure oil pipes (26), the inside of the reel compartment (3) is provided with a cable (14), the inside of the reel compartment (3) is provided with at least two reel bodies (11), and each of the high-pressure oil pipes (26) is provided with an oil replenishment port (16) at the end.

5. A novel electric gear pump device for electric shovels, as described in claim 1, characterized in that... There are three electric gear pump sets (7), which are installed at the bottom of the lubricating oil tank. The electric gear pump set (7) consists of a gear pump body (17), a motor body (18), a reducer (19) and a coupling (20).

6. The novel electric gear pump device for electric shovels and its dedicated lubrication cart as described in claim 1, characterized in that, The oil replenishment system (22) is provided in two sets. An independent air compressor (23) is provided on the side of the oil replenishment system (22). A high-pressure air pipe (24) is fixedly installed on the side of the oil replenishment system (22). A double-arm lifting device (25) and an oil tank (27) are provided inside the oil replenishment system (22). A control cabinet (21) is provided on the side of the oil replenishment system (22).

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