Mine excavation fuel oil rapid filling control system and method

Abstract

The invention provides a mine excavation fuel oil rapid filling control system and method, and belongs to the technical field of vehicle fuel oil filling. Through the filling plate capable of being controlled to ascend and descend, the fuel oil filling port is formed in the filling plate, one end of the fuel oil pipeline communicates with the fuel oil filling port, and the other end of the fuel oil pipeline communicates with the fuel oil tank, so that an operator can fill fuel oil by standing on the flat ground without climbing to the roof of the mining excavator or manually stretching an oil pipe into the fuel oil tank filling port; the safety and efficiency of fuel oil filling operation are improved, and meanwhile the intelligent degree of the fuel oil filling process is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle fuel filling, and in particular relates to a mine fuel rapid filling control system and method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] With the increase in the tonnage of excavators, the height of mining excavators has become very high. In the prior art, the oil pipe is directly extended into the filling port on the fuel tank for refueling. This refueling method has many inconveniences. It is necessary to climb onto the machine to refuel, which is inefficient and there are safety hazards in working at heights.

[0004] The prior art discloses a fuel filling system and an engineering vehicle, in which the fuel is drained to the bottom of the fuel tank through a steel pipe of the fuel tank, so that the operator can fill the fuel while standing on the ground. Although this reduces the operating intensity of the operator, it does not involve intelligent control and has a low degree of intelligence. Summary of the invention

[0005] The purpose of the present invention is to provide a mining fuel rapid filling control system and method to solve the technical problems in the prior art of needing to climb onto the machine to refuel, low efficiency, low intelligence and potential safety hazards.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] A first aspect of the present invention provides a mining fuel rapid filling control system, comprising:

[0008] controllers, hydraulic power units, platform structures, fuel lines, fuel tanks and filler plates;

[0009] The platform structure comprises a horizontal plate and a vertical plate vertically arranged on the horizontal plate;

[0010] One end of the filling plate is rotatably fixed to the vertical plate, and the other end of the filling plate is provided with a fuel filling port;

[0011] The fuel tank is placed on the transverse plate;

[0012] One end of the fuel pipeline is connected to the fuel tank, and the other end thereof passes through the vertical plate and is fixed to the fuel filling port;

[0013] The hydraulic power unit is connected to the hydraulic cylinder;

[0014] The output end of the hydraulic cylinder is fixedly connected to the filling plate, and the other end is fixed to the vertical plate. The controller controls the extension and retraction of the hydraulic cylinder, and the hydraulic cylinder drives the filling plate to rise and fall.

[0015] When the filling plate is lowered into place, refueling is carried out, and after refueling is stopped, the filling plate rises to the initial position.

[0016] Furthermore, the system also includes a lifting switch, which generates an ascending signal or a descending signal, and the ascending signal or the descending signal is transmitted to the controller. After receiving the signal, the controller processes it and controls the hydraulic cylinder to perform a corresponding action.

[0017] Furthermore, after receiving the rising signal, the controller controls the hydraulic power unit to output hydraulic power. At the same time, the controller controls the descending solenoid valve on the hydraulic pipeline to disconnect and drive the hydraulic cylinder to retract, thereby raising the filling plate to the initial position.

[0018] Further, when the filling plate rises into position, the limit switch closes, allowing the engine to start.

[0019] Furthermore, after receiving the descending signal, the controller controls the hydraulic power unit to output hydraulic power. At the same time, the controller controls the descending solenoid valve on the hydraulic pipeline to fit, driving the hydraulic cylinder to extend outward, thereby descending the filling plate to the set position.

[0020] Furthermore, when the filling plate is lowered into place, the limit switch is disconnected, and the engine is prohibited from starting.

[0021] Furthermore, the controller is also connected to a liquid level sensor, and the liquid level sensor is arranged on the fuel tank.

[0022] Furthermore, the hydraulic pipeline is provided with a pressure sensor for detecting the pressure value inside the hydraulic pipeline.

[0023] Furthermore, the pressure sensor is connected to the controller, and when the pressure value is greater than a preset value, the controller controls the hydraulic cylinder to stop working.

[0024] A second aspect of the present invention provides a method for controlling rapid fuel filling in a mine, which adopts a rapid fuel filling control system for a mine described in the first aspect and comprises the following steps:

[0025] Step 1: The controller determines whether there is a falling signal. If so, step 2 is executed. If not, the controller continues to determine whether there is a falling signal.

[0026] Step 2: Start the hydraulic power unit, close the lowering solenoid valve, extend the hydraulic cylinder to drive the filling plate down, and execute step 3 at the same time.

[0027] Step 3: Determine whether the hydraulic pipeline pressure value is greater than 25Mpa. If so, stop the output of the descending solenoid valve, the hydraulic cylinder stops moving, and the filling plate stops descending; if not, continue to detect the hydraulic pipeline pressure value, and at the same time, determine whether the limit switch is disconnected. If so, prohibit the engine from starting, otherwise continue to determine whether the limit switch is disconnected.

[0028] After the filling plate is lowered into place, proceed to step 4.

[0029] Step 4: Determine whether the refueling switch is triggered. If so, start refueling and determine whether the fuel level exceeds 95% of the fuel tank capacity. Execute step 5. If not, continue to determine whether the refueling switch is triggered.

[0030] Step 5: If the fuel level exceeds 95% of the fuel tank capacity, the fuel full indicator light is turned on and the fuel pump power is cut off, and the refueling is completed. Otherwise, continue to determine whether the fuel level exceeds the preset value.

[0031] The technical solution of the present invention has the following beneficial effects:

[0032] The present invention provides a filling plate that can be controlled to rise and fall, and a fuel filling port is arranged on the filling plate. One end of the fuel pipeline is connected to the fuel filling port, and the other end is connected to the fuel tank filling port. The operator does not need to climb to the roof of the mining excavator or manually extend the oil pipe into the fuel tank filling port. The fuel can be filled while standing on the flat ground, thereby improving the safety and efficiency of the fuel filling operation and the intelligence level of the fuel filling process.

[0033] The invention prohibits the engine from starting by opening the limit switch when refueling begins, and allows the engine to start by closing the limit switch after refueling is completed, thereby improving the safety of the refueling process.

[0034] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0036] Figure 1 A schematic structural diagram of a mining fuel rapid filling control system provided in an embodiment of the present invention.

[0037] Figure 2 for Figure 1 A partial enlarged view.

[0038] Figure 3 for Figure 1A partial enlarged view of point B.

[0039] Figure 4 for Figure 1 A partial enlarged view of point C.

[0040] Figure 5 for Figure 1 A partial enlarged view of point D.

[0041] Figure 6 for Figure 1 A partial enlarged view of point E.

[0042] Figure 7 for Figure 1 A partial enlarged view of point F.

[0043] Figure 8 A flow chart of a method for controlling rapid fuel filling in mining provided by an embodiment of the present invention.

[0044] Markings in the figure: 1. controller, 2. hydraulic pipeline, 3. hydraulic power unit, 4. fuel pipeline, 5. fuel tank, 6. liquid level sensor, 7. lifting switch, 8. limit switch, 9. hydraulic cylinder, 10. filling plate, 11. refueling switch, 12. full indicator light, 13. fuel filling port, 14. vertical plate, 15. horizontal plate, 16. baffle, 17. pressure sensor. DETAILED DESCRIPTION

[0045] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0046] It should be noted that the terms used herein are for describing specific embodiments only and are not intended to be limiting of exemplary embodiments according to the present invention.

[0047] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0048] Example 1

[0049] This embodiment discloses a mine fuel quick filling control system, such as Figure 1-8 As shown, including:

[0050] Controller 1, hydraulic power unit 3, platform structure, fuel pipeline 4, fuel tank 5 and filling plate 10; the platform structure includes a transverse plate 15 and a vertical plate 14 vertically arranged on the transverse plate 15; one end of the filling plate 10 is rotatably fixed on the vertical plate 14, and the other end thereof is provided with a fuel filling port 13; the fuel tank 5 is placed on the transverse plate 15; one end of the fuel pipeline 4 is connected to the fuel tank 5, and the other end thereof passes through the vertical plate 14 and is fixed on the fuel filling port 13; the hydraulic power unit 3 is connected to the hydraulic cylinder 9, the output end of the hydraulic cylinder 9 is fixedly connected to the filling plate 10, and the other end thereof is fixed on the vertical plate 14, the controller 1 controls the extension and retraction of the hydraulic cylinder 9, and the hydraulic cylinder 9 drives the filling plate 10 to rise and fall; when the filling plate 10 is lowered into place, refueling is carried out, and after refueling is stopped, the filling plate 10 rises to the initial position.

[0051] The hydraulic power unit 3 is connected to the hydraulic cylinder 9 through two hydraulic pipelines 2, namely the first branch and the second branch. The first branch is used to deliver hydraulic oil to the hydraulic cylinder 9 to perform the extension action, and the second branch is used to deliver hydraulic oil to the hydraulic cylinder 9 to perform the retraction action. Figure 5 As shown, a pressure sensor 17 is also provided on the first branch of the hydraulic pipeline 2 for detecting the pressure value inside the hydraulic pipeline 2. The pressure sensor 17 is connected to the controller 1. When the pressure value is greater than the preset value, the hydraulic cylinder 9 stops working, and the filling plate 10 reaches the lowest position.

[0052] In a specific embodiment, the filling plate 10 is a flat plate structure, or a "U"-shaped structure, and a baffle 16 is vertically arranged at one end of the filling plate 10 away from the vertical plate 14, such as Figure 2 As shown, a refueling switch 11 and a full-fill indicator light 12 are provided on the baffle 16, and a fuel filling port 13 is provided on the baffle 16. The fuel filling port 13 is connected to the fuel tank through the fuel pipeline 4. When refueling, the fuel enters the fuel tank 5 from the fuel filling port 13 through the fuel pipeline 4 under the action of the refueling pump, thereby realizing fuel filling. The hydraulic cylinder 9 is extended and retracted to drive the filling plate 10 to rise and fall, and the filling plate 10 is perpendicular to the vertical plate 14 when it is in the initial position.

[0053] In a specific embodiment, the filling plate 10 and the vertical plate 14 are respectively fixed with fixed seats, the output end of the hydraulic cylinder 9 and the fixed seat on the filling plate 10 are respectively opened, and the two are fixed by a pin shaft; the other end of the hydraulic cylinder 9 and the fixed seat on the vertical plate 14 are respectively opened, and the two are fixed by a pin shaft. Side plates are respectively arranged on both sides of the filling plate 10, and the side plates are vertically arranged with the baffle 16. The side plates close to the vertical plate 14 have holes. Two filling plate fixing seats are also fixed on the vertical plate 14. The two filling plate fixing seats have holes respectively corresponding to the holes on the side plates. The filling plate 10 is placed between the two filling plate fixing seats, and the side plates and the corresponding filling plate fixing seats are fixed by pin shafts to realize the rotation connection between the filling plate 10 and the vertical plate 14.

[0054] In a specific implementation, the platform structure mainly plays a supporting and load-bearing role, such as Figure 4 As shown, a lifting switch 7 is provided on the horizontal plate 15, and the controller 1 is connected to the lifting switch 7. The lifting switch 7 is used to generate an ascending signal or a descending signal and transmit it to the controller 1. The lifting switch 7 can be an ascending button and a descending button, specifically:

[0055] The descending button is used to generate a descending signal and send it to the controller 1. After receiving the descending signal, the controller 1 controls the hydraulic power unit 3 to output hydraulic power. At the same time, the controller 1 controls the descending solenoid valve on the hydraulic pipeline 2 to be closed, driving the hydraulic cylinder 9 to extend outward, thereby descending the filling plate 10 to the set position. When the filling plate 10 is lowered into place, the limit switch 8 is disconnected, and the engine is prohibited from starting to prevent danger.

[0056] The rising button is used to generate an rising signal and send it to the controller 1. After receiving the rising signal, the controller 1 controls the hydraulic power unit 3 to output hydraulic power. At the same time, the controller 1 controls the descending solenoid valve on the hydraulic pipeline 2 to disconnect and drive the hydraulic cylinder 9 to retract, thereby raising the filling plate 10 to the initial position. When the filling plate 10 rises to the position, the limit switch 8 is closed, allowing the engine to start.

[0057] The filling plate 10 is rotatably connected to the vertical plate 14 . Driven by the telescopic action of the hydraulic cylinder 9 , the filling plate rotates around the connection of 10 to achieve the lifting action of the fuel filling port 13 .

[0058] The controller 1 is also connected to the refueling switch 11, which is used to generate a refueling signal. When the refueling plate 10 is lowered into place, the limit switch 8 is disconnected, and the engine is prohibited from starting. The staff can operate the refueling switch 11 to generate a refueling signal. When the controller 1 receives the refueling signal, it turns on the refueling pump to start refueling in the fuel tank 5. Figure 7 As shown, the fuel tank 5 is provided with a liquid level sensor 6 for obtaining real-time fuel level information in the fuel tank 5. The liquid level sensor 6 is connected to the controller 1. When the refueling pump is turned on to start refueling in the fuel tank 5, the controller 1 can obtain the fuel level value of the liquid level sensor 6 in real time and determine whether the liquid level value reaches the set value, i.e., 95% of the liquid level value. When the set value is reached, the full indicator light 12 lights up, refueling stops, and the lifting switch 7 is operated to raise the filling plate 10. Figure 3 As shown, a hole is opened at the corresponding position of the vertical plate 14, and a limit switch 8 is installed to detect the position of the filling plate 10. When the filling plate 10 rises to the right position, the limit switch 8 is closed, allowing the engine to start.

[0059] In this embodiment, a filling plate 10 that can be controlled to rise and fall is provided with a fuel filling port 13. One end of the fuel pipeline 4 is connected to the fuel filling port 13, and the other end is connected to the fuel tank. The operator does not need to climb to the top of the mining excavator, nor does he need to manually extend the oil pipe into the fuel tank filling port. The fuel can be filled while standing on the ground, thereby improving the safety and efficiency of the fuel filling operation.

[0060] Example 2

[0061] This embodiment discloses a method for controlling the rapid filling of fuel oil in a mine, using the system provided in Embodiment 1. The specific process is as follows: Figure 8 As shown, the following steps are included:

[0062] Step 1: The controller determines whether there is a falling signal. If so, step 2 is executed. If not, the controller continues to determine whether there is a falling signal.

[0063] Step 2: Start the hydraulic power unit, close the lowering solenoid valve, extend the hydraulic cylinder to drive the filling plate down, and execute step 3 at the same time.

[0064] Step 3: Determine whether the hydraulic pipeline pressure value is greater than 25Mpa. If so, stop the output of the descending solenoid valve, the hydraulic cylinder stops moving, and the filling plate stops descending; if not, continue to detect the hydraulic pipeline pressure value, and at the same time, determine whether the limit switch is disconnected. If so, prohibit the engine from starting, otherwise continue to determine whether the limit switch is disconnected.

[0065] After the filling plate is lowered into place, proceed to step 4.

[0066] Step 4: Determine whether the refueling switch is triggered. If so, start refueling and determine whether the fuel level exceeds 95% of the fuel tank capacity. Execute step 5. If not, continue to determine whether the refueling switch is triggered.

[0067] Step 5: If the fuel level exceeds 95% of the fuel tank capacity, the fuel full indicator light is turned on and the fuel pump power is cut off, and the refueling is completed. Otherwise, continue to determine whether the fuel level exceeds the preset value.

[0068] In a specific embodiment, the descending signal can be generated by pressing the descending button. The operator presses the descending button of the lifting switch 7, outputs a high level to the descending solenoid valve, and generates a descending signal. After the controller obtains the descending signal, it controls the hydraulic power unit 3 to output hydraulic power. At the same time, the controller controls the descending solenoid valve on the hydraulic pipeline 2 to attract, and drives the hydraulic oil cylinder 9 to extend and drive the filling plate 10 to descend to the set position. The set position is the refueling position, that is, the operator can insert the refueling pump into the position of the refueling port when standing on the ground, without climbing. When the refueling plate 10 is lowered into place, the limit switch is disconnected, and the engine is prohibited from starting. Pressing the refueling switch generates a refueling signal. After obtaining the refueling signal, the controller controls the refueling pump to start and start refueling. At the same time, it determines whether the fuel level exceeds 95% of the fuel tank capacity. If the fuel level exceeds 95% of the fuel tank capacity, the fuel full indicator light is lit and the power supply of the refueling pump is cut off to stop refueling.

[0069] After stopping refueling, the operator presses the up button of the lifting switch 7, outputting a high level to the up solenoid valve to generate an up signal, which is sent to the controller. After receiving the up signal, the controller controls the hydraulic power unit 3 to output hydraulic power. At the same time, the controller controls the down solenoid valve on the hydraulic pipeline 2 to disconnect and drive the hydraulic cylinder 9 to retract, thereby raising the filling plate 10 to the initial position. After it is in place, the limit switch closes, allowing the engine to start.

[0070] In this embodiment, the operator does not need to climb to the roof of the mining excavator, nor does he need to manually insert the oil pipe into the fuel tank filling port. Fuel can be refilled while standing on flat ground, thereby improving the safety and efficiency of the fuel refilling operation.

[0071] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A mining fuel quick filling control system, characterized in that: include: controllers, hydraulic power units, platform structures, fuel lines, fuel tanks and filler plates; The platform structure comprises a horizontal plate and a vertical plate vertically arranged on the horizontal plate; One end of the filling plate is rotatably fixed to the vertical plate, and the other end of the filling plate is provided with a fuel filling port; The fuel tank is placed on the transverse plate; One end of the fuel pipeline is connected to the fuel tank, and the other end thereof passes through the vertical plate and is fixed to the fuel filling port; The hydraulic power unit is connected to the hydraulic cylinder; The output end of the hydraulic cylinder is fixedly connected to the filling plate, and the other end is fixed to the vertical plate. The controller controls the extension and retraction of the hydraulic cylinder, and the hydraulic cylinder drives the filling plate to rise and fall. When the filling plate is lowered into place, refueling is carried out, and after refueling is stopped, the filling plate rises to the initial position.

2. A mining fuel quick filling control system as claimed in claim 1, characterized in that: The system also includes a lifting switch, which generates an ascending signal or a descending signal, and the ascending signal or the descending signal is transmitted to the controller. After receiving the signal, the controller processes it and controls the hydraulic cylinder to perform a corresponding action.

3. A mining fuel quick filling control system as claimed in claim 2, characterized in that: After receiving the rising signal, the controller controls the hydraulic power unit to output hydraulic power. At the same time, the controller controls the descending solenoid valve on the hydraulic pipeline to disconnect, drive the hydraulic cylinder to retract, and raise the filling plate to the initial position.

4. A mining fuel quick filling control system as claimed in claim 3, characterized in that: When the filler plate rises into position, the limit switch closes, allowing the engine to start.

5. A mining fuel quick filling control system as claimed in claim 2, characterized in that: After receiving the descending signal, the controller controls the hydraulic power unit to output hydraulic power. At the same time, the controller controls the descending solenoid valve on the hydraulic pipeline to fit, drives the hydraulic cylinder to extend outward, and descends the filling plate to the set position.

6. A mining fuel quick filling control system as claimed in claim 5, characterized in that: When the filling plate is lowered into place, the limit switch is disconnected, and the engine is prohibited from starting.

7. A mining fuel quick filling control system as claimed in claim 1, characterized in that: The controller is also connected to a liquid level sensor, and the liquid level sensor is arranged on the fuel tank.

8. A mining fuel quick filling control system as claimed in claim 1, characterized in that: The hydraulic pipeline is provided with a pressure sensor for detecting the pressure value inside the hydraulic pipeline.

9. A mining fuel quick filling control system as claimed in claim 8, characterized in that: The pressure sensor is connected to the controller, and when the pressure value is greater than a preset value, the controller controls the hydraulic cylinder to stop working.

10. A method for controlling rapid fuel filling in mining, using a rapid fuel filling control system for mining as claimed in any one of claims 1 to 9, characterized in that: The steps include: Step 1: The controller determines whether there is a falling signal, if so, it executes step 2, if not, it continues to determine whether there is a falling signal; Step 2: Start the hydraulic power unit, close the lowering solenoid valve, extend the hydraulic cylinder to drive the filling plate to descend, and execute step 3 at the same time; Step 3: Determine whether the pressure value of the hydraulic pipeline is greater than the set value. If so, stop the output of the descending solenoid valve, stop the hydraulic cylinder, and stop the filling plate from descending; if not, continue to detect the pressure value of the hydraulic pipeline, and at the same time, determine whether the limit switch is disconnected. If so, prohibit the engine from starting, otherwise continue to determine whether the limit switch is disconnected; After the filling plate is lowered into place, proceed to step 4; Step 4: Determine whether the refueling switch is triggered. If so, start refueling. At the same time, determine whether the fuel level exceeds the set value of the fuel tank capacity and execute step 5. If not, continue to determine whether the refueling switch is triggered. Step 5: If the fuel level exceeds the set value of the fuel tank capacity, the fuel full indicator light is turned on and the fuel pump power is cut off, and refueling is completed; otherwise, continue to determine whether the fuel level exceeds the preset value.

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