Intelligent lubricating oil filling device for subway train

Abstract

The utility model relates to the technical field of lubricating oil filling, and discloses a subway train lubricating oil intelligent filling device which comprises a cabinet body, an oil drum is installed at the bottom end in a cabinet body cavity, and a serial port display screen, a self-reset switch and an emergency switch are arranged at the top end of the cabinet body. The execution module comprises a direct-current brushless motor and a bidirectional gear pump; the control module comprises a single chip microcomputer and a double-gear rotary switch; the power module comprises a graphene lead-acid battery pack, a double-control air switch and a power adapter; and a signal acquisition module. The signal collecting module is used for collecting information of all the modules, the power module is used for supplying power, the control module is used for operating and controlling equipment, the execution module is used for controlling in and out of lubricating oil, all the modules are matched with one another through the reasonable structural design, and the device is small in structure, high in oil injection efficiency and high in use convenience.

Description

A smart lubricating oil filling device for subway trains Technical Field

[0001] This utility model relates to the field of lubricating oil filling technology, and in particular to an intelligent lubricating oil filling device for subway trains. Background Technology

[0002] Subway trains require lubricating oil changes at regular intervals. Traditionally, oil is removed by manual pouring or by using an oil pump. Manual pouring requires multiple people to work together to pour the oil into a small central container, and the process can easily cause lubricating oil to splash and contaminate the lubricating oil storage area.

[0003] During oil transportation, challenges arise due to the distance between the subway train lubricant storage area and the maintenance depot, the need to traverse level crossings, and the presence of slopes along the route. Traditional manual handling significantly increases manpower requirements, and using ordinary handcarts increases the risk of oil drums falling and oil spilling. For cleaning and oiling operations, traditional methods using measuring cylinders, cups, and funnels are inefficient and prone to leaks, polluting the work environment. The currently used external power supply requires a constant external power source, but for lubricant refueling operations involving the entire train, the work area is large, and access to power is inconvenient.

[0004] Therefore, those skilled in the art have provided an intelligent lubricating oil filling device for subway trains to solve the problems mentioned in the background art. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides an intelligent lubricating oil filling device for subway trains, which solves the problems mentioned in the background section.

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

[0007] A smart lubricating oil filling device for subway trains includes a cabinet with an oil tank installed at the bottom of the cabinet cavity, directional wheels and casters fixedly installed at the bottom of the outer wall of the cabinet, a push handle fixedly installed on one side of the cabinet, and a serial port display screen, a self-reset switch, and an emergency switch installed at the top of the cabinet; an execution module including a DC brushless motor and a bidirectional gear pump, a pressure-controlled bidirectional oil gun installed on one side of the outer wall of the cabinet, and an oil pipe connected between the pressure-controlled bidirectional oil gun and the bidirectional gear pump; a control module including a microcontroller and a dual-position rotary switch; a power supply module including a graphene lead-acid battery pack, a dual-control air switch, and a power adapter; and a signal acquisition module including an ultrasonic distance sensor for detecting the remaining lubricating oil in the oil tank, an oil volume sensor for detecting the flow rate in the oil pipe, a temperature sensor for detecting the temperature of the graphene lead-acid battery pack, and a voltage sensor for detecting the voltage of the graphene lead-acid battery pack.

[0008] According to the aforementioned intelligent lubricating oil filling device for subway trains, a partition is fixedly installed inside the cabinet cavity, and the graphene lead-acid battery pack, microcontroller, and DC brushless motor are all fixedly installed on the partition.

[0009] According to the aforementioned intelligent lubricating oil filling device for subway trains, the graphene lead-acid battery pack consists of four graphene lead-acid battery cells with a nominal voltage of DC12V and a battery capacity of 20AH. The power module also includes a step-down module, which stably outputs the voltage of the graphene lead-acid battery pack to DC5V. A three-prong plug is fixedly installed on one side of the cabinet.

[0010] According to the aforementioned intelligent lubricating oil filling device for subway trains, a hexagonal copper guide post with a threaded hole is fixedly installed on the partition plate. The microcontroller is fastened to the hexagonal copper guide post with screws. The microcontroller is equipped with a transmission port, a mounting hole, a DC power supply hole, and an IO port. The microcontroller 25 communicates with a PC computer through the transmission port, obtains stable DC 5V power from the output of the step-down module through the DC power supply hole, and is hard-wired to four relay modules of oil level sensor, ultrasonic distance sensor, temperature sensor, and voltage sensor through the IO port using DuPont wires.

[0011] According to the aforementioned intelligent lubricating oil filling device for subway trains, the DC brushless motor and the bidirectional gear pump are connected by a coupling in the form of a spline, and the bidirectional gear pump can draw lubricating oil from the oil tank in both directions.

[0012] According to the aforementioned intelligent lubricating oil filling device for subway trains, the ultrasonic distance sensor is installed in the center of the oil drum lid and fastened with threads. The temperature sensor is installed on the surface of the graphene lead-acid battery pack. The oil level sensor is set on the outer wall of one side of the oil pipe inside the cabinet cavity. The oil level sensor and the oil pipe are connected by a copper connecting thread. The voltage sensor is fastened to the hexagonal copper guide post with threaded holes at both ends by a threaded fastening method. The other end of the copper guide post is fastened to the cabinet by threads.

[0013] According to the aforementioned intelligent lubricating oil filling device for subway trains, the serial port display screen is a touch-sensitive high-definition capacitive screen. The serial port display screen is fastened to the top panel of the cabinet by a threaded fastening method, and the serial port display screen communicates with the microcontroller using the IIC protocol.

[0014] This utility model provides an intelligent lubricating oil filling device for subway trains. It has the following beneficial effects:

[0015] (1) By setting directional wheels and universal wheels at the bottom of the cabinet, it is easy to move the device. By setting an execution module, a control module, a power supply module and a signal acquisition module, the signal acquisition module is used to collect information from each module, the power supply module is used to supply power, the control module is used to operate and control the equipment, and the execution module is used to control the entry and exit of lubricating oil. Through reasonable structural design, the modules cooperate with each other, the device has a small structure, high oil injection efficiency and high ease of use.

[0016] (2) By setting the graphene lead-acid battery pack to consist of four graphene lead-acid battery cells with a nominal voltage of DC12V and a capacity of 20AH, the graphene lead-acid battery pack voltage is DC24V and the capacity is 40AH. By setting a step-down module, the step-down module stabilizes the output voltage of the graphene lead-acid battery pack to DC5V. The graphene lead-acid battery pack is charged through a three-prong plug. Compared with the existing external power supply electric refueling method which is limited by the power cord, this device has a larger operating area and is more convenient to obtain power.

[0017] (3) By rotating the dual-position rotary switch to the reverse position, the microcontroller receives a reverse oil extraction command. The microcontroller then controls the relay module to reverse the polarity of the DC brushless motor, causing it to rotate in reverse. This reverses the motor and drives the bidirectional gear pump to rotate in reverse via the coupling, generating a reverse pressure difference. During this process, pressing the pressure-controlled bidirectional oil injection gun causes lubricating oil to flow from the nozzle through the internal pipes of the gun, into the oil pipe, and further through the flow sensor and the bidirectional gear pump before entering the oil tank. Conversely, rotating the dual-position rotary switch to the forward position causes lubricating oil to flow from the oil tank through the oil level sensor, the bidirectional gear pump, and the oil pipe, exiting from the pressure-controlled bidirectional oil injection gun. The oil level sensor provides real-time feedback of the flow rate signal to the microcontroller. When the oil level reaches the preset value, the microcontroller de-energizes the relay module coil, causing the normally open contacts of the relay module to open, de-energizing the DC brushless motor, stopping its rotation, and stopping the bidirectional gear pump, thus stopping oil injection and improving operational efficiency. Attached Figure Description

[0018] Figure 1 is a three-dimensional structural schematic diagram of a smart lubricating oil filling device for subway trains according to the present invention;

[0019] Figure 2 is a schematic diagram of the internal structure of the cabinet cavity of the intelligent lubricating oil filling device for subway trains according to this utility model.

[0020] Figure 3 is a diagram showing the relationship between the modules of this utility model.

[0021] Legend:

[0022] 10. Cabinet; 11. Fixed casters; 12. Universal casters; 13. Oil pipe; 14. Pressure-controlled bidirectional oil injection gun; 15. Push handle; 16. Serial port display screen; 17. Self-reset switch; 18. Dual-position rotary switch; 19. Emergency switch; 20. Oil level sensor; 21. Coupling; 22. Bidirectional gear pump; 23. DC brushless motor; 24. Graphene lead-acid battery pack; 25. Microcontroller; 26. Triangular connector. Detailed Implementation

[0023] As shown in Figures 1-3: A smart lubricating oil filling device for subway trains includes a cabinet 10, with an oil tank installed at the bottom of the cabinet 10 cavity. A directional wheel 11 and a universal wheel 12 are fixedly installed at the bottom of the outer wall of the cabinet 10. A push handle 15 is fixedly installed on one side of the cabinet 10. A serial port display screen 16, a self-reset switch 17, and an emergency switch 19 are installed at the top of the cabinet 10. An execution module includes a DC brushless motor 23 and a bidirectional gear pump 22. A pressure-controlled bidirectional oil filling gun 14 is installed on one side of the outer wall of the cabinet 10. An oil pipe 13 is connected to the bidirectional gear pump 22; a control module, which includes a microcontroller 25 and a dual-position rotary switch 18; a power supply module, which includes a graphene lead-acid battery pack 24, a dual-control air switch, and a power adapter; and a signal acquisition module, which includes an ultrasonic distance sensor for detecting the remaining lubricating oil in the oil drum, an oil volume sensor 20 for detecting the flow rate of the oil pipe 13, a temperature sensor for detecting the temperature of the graphene lead-acid battery pack 24, and a voltage sensor for detecting the voltage of the graphene lead-acid battery pack 24.

[0024] It should be noted that the dual-control air switch, power adapter, ultrasonic distance sensor, fuel level sensor 20, temperature sensor and voltage sensor are all existing technologies and will not be described in detail here.

[0025] Specifically, by setting directional wheels 11 and omnidirectional wheels 12 at the bottom of the cabinet 10, the device can be moved easily. By setting an execution module, a control module, a power supply module, and a signal acquisition module, the signal acquisition module is used to collect information from each module, the power supply module is used to provide power, the control module is used to operate and control the equipment, and the execution module is used to control the entry and exit of lubricating oil. Through reasonable structural design, the modules cooperate with each other, the device has a small structure, high oil injection efficiency, and high ease of use.

[0026] A partition is fixedly installed inside the cabinet 10 cavity, and the graphene lead-acid battery pack 24, the microcontroller 25 and the DC brushless motor 23 are all fixedly installed on the partition.

[0027] Specifically, by installing a partition inside the cabinet 10 cavity, it is convenient to install the graphene lead-acid battery pack 24, the microcontroller 25, and the DC brushless motor 23.

[0028] The graphene lead-acid battery pack 24 consists of four graphene lead-acid battery cells with a nominal voltage of DC12V and a battery capacity of 20AH. The power module also includes a step-down module, which stabilizes the voltage output of the graphene lead-acid battery pack 24 to DC5V. A three-prong plug 26 is fixedly installed on one side of the cabinet 10.

[0029] Specifically, the graphene lead-acid battery pack 24 is composed of four graphene lead-acid battery cells with a nominal voltage of DC12V and a capacity of 20AH, so that the voltage of the graphene lead-acid battery pack 24 is DC24V and the capacity is 40AH. By setting a step-down module, the voltage of the graphene lead-acid battery pack 24 is stably output to DC5V. The graphene lead-acid battery pack 24 is charged through the three-prong plug 26. Compared with the existing external power supply electric refueling method which is limited by the wire, this device has a larger operating area and is more convenient to obtain power.

[0030] A hexagonal copper guide post with a threaded hole is fixedly installed on the partition. The microcontroller 25 is fastened to the hexagonal copper guide post with screws. The microcontroller 25 is equipped with a transmission port, mounting hole, DC power supply hole, and IO port. The microcontroller 25 communicates with the PC computer through the transmission port and obtains stable DC 5V power from the output of the step-down module through the DC power supply hole. Through the IO port, it is hard-wired to the four relay modules of oil level sensor 20, ultrasonic distance sensor, temperature sensor, and voltage sensor respectively using DuPont wires.

[0031] Specifically, a hexagonal copper guide post with a threaded hole is fixedly installed on the partition. The microcontroller 25 is fastened to the hexagonal copper guide post with screws. The microcontroller 25 is equipped with a transmission port, mounting hole, DC power supply hole, and IO port. The microcontroller 25 communicates with the PC computer through the transmission port and obtains stable DC 5V power from the output of the step-down module through the DC power supply hole. Through the IO port, it is hard-wired to the four relay modules of oil level sensor 20, ultrasonic distance sensor, temperature sensor, and voltage sensor using DuPont wires, thereby facilitating intelligent control by the microcontroller 25.

[0032] A DC brushless motor 23 and a bidirectional gear pump 22 are connected by a spline coupling 21, allowing the bidirectional gear pump 22 to draw lubricating oil from the oil drum in both directions. An ultrasonic distance sensor is installed in the center of the oil drum lid and secured with threads. A temperature sensor is mounted on the surface of the graphene lead-acid battery pack 24. An oil level sensor 20 is located on one outer wall of the oil pipe 13 within the cabinet 10 cavity, connected to the oil pipe 13 via a copper connecting thread. A voltage sensor is secured to hexagonal copper guide posts with threaded holes at both ends via threads, and the other end of the copper guide post is secured to the cabinet 10 via threads. A serial port display screen 16 is a high-definition touchscreen capacitive screen, secured to the top panel of the cabinet 10 via threads. The serial port display screen 16 communicates with the microcontroller 25 using the IIC protocol.

[0033] Specifically, a coupling 21 is set between the DC brushless motor 23 and the bidirectional gear pump 22 via a spline connection. The bidirectional gear pump 22 can draw lubricating oil from the oil tank in both directions. The DC brushless motor 23 drives the bidirectional gear pump 22 through the coupling 21. Temperature sensor, oil level sensor 20 and voltage sensor are set to collect information. A serial port display screen 16 is set to facilitate the operator to view various parameters.

[0034] The working principle of the intelligent lubricating oil filling device for subway trains disclosed in this application is as follows: By rotating the dual-position rotary switch 18 to the reverse position, the microcontroller 25 collects the reverse oil extraction command. The microcontroller 25 further controls the relay module to reverse the positive and negative terminals of the DC brushless motor 23, causing the DC brushless motor 23 to reverse. Through the coupling 21, the bidirectional gear pump 22 is driven to reverse, generating a reverse pressure difference. During this period, pressing the pressure-controlled bidirectional oil injection gun 14 causes the lubricating oil to flow from the nozzle of the pressure-controlled bidirectional oil injection gun 14 through the internal pipe of the pressure-controlled bidirectional oil injection gun 14, flowing to the oil pipe 13. The lubricating oil then flows through the flow sensor and the bidirectional gear pump 22 and enters the oil tank. Conversely, rotating the dual-position rotary switch 18 to the forward position causes the lubricating oil to flow from the oil tank through the oil quantity sensor 20, the bidirectional gear pump 22, and the oil pipe 13, and then out of the pressure-controlled bidirectional oil injection gun 14. The oil level sensor 20 feeds back the flow signal value to the microcontroller 25 in real time. When the oil level reaches the preset value, the microcontroller 25 controls the relay module coil to de-energize, the normally open contact of the relay module to open, the DC brushless motor 23 to de-energize, the DC brushless motor 23 to stop rotating, the bidirectional gear pump 22 to stop rotating, and the oil injection to stop.

[0035] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A smart lubricating oil filling device for subway trains, characterized in that, include: Cabinet (10), an oil drum is installed at the bottom of the cavity of the cabinet (10), a directional wheel (11) and a universal wheel (12) are fixedly installed at the bottom of the outer wall of the cabinet (10), a push handle (15) is fixedly installed on one side of the cabinet (10), and a serial port display screen (16), a self-reset switch (17) and an emergency switch (19) are provided at the top of the cabinet (10); execution module, the execution module includes a DC brushless motor (23) and a bidirectional gear pump (22), a pressure-controlled bidirectional oil injection gun (14) is provided on one side of the outer wall of the cabinet (10), the pressure-controlled bidirectional oil injection gun (14) and the bidirectional gear pump (23) are connected. 2) There is an oil pipe (13) connected between them; control module, the control module includes a microcontroller (25) and a dual-position rotary switch (18); power module, the power module includes a graphene lead-acid battery pack (24), a dual-control air switch and a power adapter; signal acquisition module, the signal acquisition module includes an ultrasonic distance sensor for detecting the remaining amount of lubricating oil in the oil drum, an oil volume sensor (20) for detecting the flow rate of the oil pipe (13), a temperature sensor for detecting the temperature of the graphene lead-acid battery pack (24) and a voltage sensor for detecting the voltage of the graphene lead-acid battery pack (24).

2. The intelligent lubricating oil filling device for subway trains according to claim 1, characterized in that: A partition is fixedly installed inside the cabinet (10), and the graphene lead-acid battery pack (24), the microcontroller (25) and the DC brushless motor (23) are all fixedly installed on the partition.

3. The intelligent lubricating oil filling device for subway trains according to claim 1, characterized in that: The graphene lead-acid battery pack (24) consists of four graphene lead-acid battery cells with a nominal voltage of DC12V and a battery capacity of 20AH. The power module also includes a step-down module, which stabilizes the voltage of the graphene lead-acid battery pack (24) to DC5V. A three-prong plug (26) is fixedly installed on one side of the cabinet (10).

4. The intelligent lubricating oil filling device for subway trains according to claim 2, characterized in that: The partition plate is fixedly installed with a hexagonal copper guide post with a threaded hole. The microcontroller (25) is fastened to the hexagonal copper guide post with screws. The microcontroller (25) is provided with a transmission port, a mounting hole, a DC power supply hole, and an IO port. The microcontroller (25) communicates with the PC computer through the transmission port and obtains stable DC 5V power from the output of the step-down module through the DC power supply hole. Through the IO port, it is hard-wired to the four relay modules of the oil level sensor (20), ultrasonic distance sensor, temperature sensor, and voltage sensor respectively using DuPont wires.

5. The intelligent lubricating oil filling device for subway trains according to claim 1, characterized in that: The brushless DC motor (23) and the bidirectional gear pump (22) are connected by a coupling (21) in the form of a spline. The bidirectional gear pump (22) can draw lubricating oil from the oil tank in both directions.

6. The intelligent lubricating oil filling device for subway trains according to claim 1, characterized in that: The ultrasonic distance sensor is installed in the center of the oil drum lid and is fastened by threads. The temperature sensor is installed on the surface of the graphene lead-acid battery pack (24). The oil level sensor (20) is set on the outer wall of one side of the oil pipe (13) inside the cabinet (10). The oil level sensor (20) and the oil pipe (13) are connected by copper pipe threads. The voltage sensor is fastened to the hexagonal copper guide post with threaded holes at both ends by thread fastening. The other end of the copper guide post is fastened to the cabinet (10) by threads.

7. The intelligent lubricating oil filling device for subway trains according to claim 1, characterized in that: The serial port display screen (16) is a touch-sensitive high-definition capacitive screen. The serial port display screen (16) is fastened to the top panel of the cabinet (10) by a threaded fastening method. The serial port display screen (16) communicates with the microcontroller (25) using the IIC protocol.

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