Tractor electric control chassis

Abstract

The utility model relates to tractor technical field, concretely is a tractor electric control chassis, through setting up front axle, battery box, rear axle no.

Description

Technical Field

[0001] This utility model relates to the field of tractor technology, specifically to an electronically controlled tractor chassis. Background Technology

[0002] The tractor chassis bears all the tractor's components and designed load capacity, making it the most important and indispensable part for ensuring the tractor's safe operation. Currently, tractors used in agricultural production all use single-axle, single-drive chassis. Single-axle, single-drive chassis have a small load capacity, and once the load of agricultural products or materials increases, they cannot operate smoothly, let alone climb hills, posing a safety hazard. Moreover, existing tractor chassis consume a lot of energy and have low energy efficiency during use. Utility Model Content

[0003] The purpose of this utility model is to provide an electronically controlled tractor chassis to solve the problems of low load capacity, unstable operation when carrying agricultural products or agricultural materials, safety hazards, and low energy utilization rate of existing tractor chassis.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tractor electronic control chassis, including a frame, a driver's seat mounted on the frame, a front axle, a battery box, a first rear axle, a second rear axle, a first motor, a second motor, a first inverter controller, a second inverter controller, a first capacitor module, and a second capacitor module; the driver's seat is mounted at one end of the frame, and a steering wheel is mounted on the front of the driver's seat via a control box, which contains a master controller; the first rear axle and the second rear axle are respectively connected to the first motor and the second motor via transmission mechanisms; front wheels are mounted at both ends of the front axle, and rear wheels are mounted at both ends of the first rear axle and the second rear axle; the battery box contains a first battery pack and a second battery pack, the first battery pack being electrically connected to the first inverter controller and the first capacitor module, and the second battery pack being electrically connected to the second inverter controller and the second capacitor module; the first inverter controller is electrically connected to the first motor and the first capacitor module, and the second inverter controller is electrically connected to the second motor and the second capacitor module.

[0005] Based on the above technical solution, the present invention can be further improved as follows: As a further improvement to the above technical solution, the frame is a steel frame, and the inverter controller one, capacitor module one and motor one installed on the frame are arranged close to the rear axle one, the inverter controller two, capacitor module two and motor two installed on the frame are arranged close to the rear axle two, and the battery box installed on the frame is located between the front axle and the rear axle one.

[0006] As a further improvement to the above technical solution, the inverter controller one and inverter controller two are used to drive motor one and motor two to rotate respectively, and the transmission mechanism is a gearbox or gear, used to transmit the power output by motor one and motor two to rear axle one and rear axle two.

[0007] As a further improvement to the above technical solution, the control box is equipped with a single-bridge single-drive control switch and a double-bridge dual-drive control switch, both of which are electrically connected to the main controller via wires.

[0008] As a further improvement to the above technical solution, the main controller is electrically connected to inverter controller one and inverter controller two via wires, providing control signals to inverter controller one and inverter controller two for switching motor one and motor two to motor or generator mode; in motor mode, motor one and motor two are powered by battery pack one and battery pack two respectively; the power generated by motor one in generator mode is transmitted to capacitor module one and stored via inverter controller one, and the power generated by motor two in generator mode is transmitted to capacitor module two and stored via inverter controller two.

[0009] As a further improvement to the above technical solution, the battery pack one is electrically connected to the motor one through the inverter controller one to drive the rear axle one to operate, and the current flow direction is: battery pack one → inverter controller one → motor one; the battery pack two is electrically connected to the motor two through the inverter controller two to drive the rear axle two to operate, and the current flow direction is: battery pack two → inverter controller two → motor two.

[0010] As a further improvement to the above technical solution, the first motor is electrically connected to the first capacitor module through the first inverter controller so that electrical energy can be stored through the first capacitor module, and the current flow is: first motor → first inverter controller → first capacitor module; the second motor is electrically connected to the second capacitor module through the second inverter controller so that electrical energy can be stored through the second capacitor module, and the current flow is: second motor → second inverter controller → second capacitor module.

[0011] As a further improvement to the above technical solution, thyristors are provided between battery pack one and inverter controller one, between battery pack two and inverter controller two, between inverter controller one and capacitor module one, between inverter controller two and capacitor module two, between capacitor module one and battery pack one, and between capacitor module two and battery pack two. The thyristors are used to conduct current unidirectionally to limit the current flow.

[0012] As a further improvement to the above technical solution, the first motor and the second motor are permanent magnet synchronous motors, the first battery pack and the second battery pack are lithium battery packs, and both the front wheel and the rear wheel use solid tires.

[0013] The beneficial effects of this utility model are as follows: The above-mentioned tractor electronic control chassis, by setting up a front axle, battery box, rear axle one, rear axle two, motor one, motor two, inverter controller one, and inverter controller two, can switch between two operating modes—electronically controlled single-axle single-drive and electronically controlled dual-axle dual-drive—according to load and road conditions. This effectively reduces energy consumption and enables stable operation with heavy loads and uphill driving, solving the problems of small load capacity, unstable operation when transporting agricultural products or agricultural materials, and safety hazards in existing technologies. Furthermore, by setting inverter controller one and inverter controller two to be electrically connected to capacitor module one and capacitor module two respectively, energy recovery is achieved during the operation of the tractor electronic control chassis, saving energy consumption and improving energy utilization efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the main structure of the tractor electronic control chassis provided in a preferred embodiment of the present invention; Figure 2 yes Figure 1 A top view of the tractor's electronically controlled chassis. Figure 3 yes Figure 1 The circuit structure schematic diagram of the electronically controlled chassis of the tractor; In the diagram: 1. Frame; 2. Driver's seat; 3. Control box; 31. Steering wheel; 4. Main controller; 51. Inverter controller one; 52. Inverter controller two; 6. Front axle; 61. Front wheel; 71. Rear axle one; 72. Rear axle two; 73. Rear wheel; 81. Motor one; 82. Motor two; 9. Transmission mechanism; 10. Battery box; 101. Battery pack one; 102. Battery pack two; 11. Capacitor module one; 12. Capacitor module two; 13. Thyristor. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, a preferred embodiment of this utility model provides a tractor electronic control chassis, including a frame 1, a driver's seat 2 mounted on the frame 1, a front axle 6, a battery box 10, a first rear axle 71, a second rear axle 72, a first motor 81, a second motor 82, a first inverter controller 51, a second inverter controller 52, a first capacitor module 11, and a second capacitor module 12; the driver's seat 2 is mounted at one end of the frame 1, and a steering wheel 31 is mounted on the front of the driver's seat 2 via a control box 3, which contains a main controller 4; the first rear axle 71 and the second rear axle 72 are respectively connected to the first motor 81 and the second motor 82 via a transmission mechanism 9. The transmission connection includes front wheels 61 mounted at both ends of the front axle 6, and rear wheels 73 mounted at both ends of the rear axle 71 and rear axle 72. The battery box 10 contains battery pack 101 and battery pack 102. Battery pack 101 is electrically connected to inverter controller 51 and capacitor module 11 via wires, and battery pack 102 is electrically connected to inverter controller 52 and capacitor module 12 via wires. Inverter controller 51 is electrically connected to motor 81 and capacitor module 11 via wires, and inverter controller 52 is electrically connected to motor 82 and capacitor module 12 via wires.

[0020] The frame 1 is a steel frame. Inverter controller 51, capacitor module 11, and motor 81, mounted on the frame 1, are arranged near the rear axle 71. Inverter controller 52, capacitor module 12, and motor 82, also mounted on the frame 1, are arranged near the rear axle 72. The battery box 10, mounted on the frame 1, is located between the front axle 6 and the rear axle 71. Inverter controllers 51 and 52 drive motors 81 and 82 to rotate, respectively. The transmission mechanism 9, which can be a gearbox or gears, transmits the power output from motors 81 and 82 to the rear axles 71 and 72, thereby driving the rear wheel 73 to rotate. In this embodiment, motors 81 and 82 are permanent magnet synchronous motors, battery packs 101 and 102 are lithium battery packs, and both the front wheel 61 and the rear wheel 73 use solid tires.

[0021] The control box 3 is equipped with a single-bridge single-drive control switch and a dual-bridge dual-drive control switch. Both the single-bridge single-drive control switch and the dual-bridge dual-drive control switch are electrically connected to the main controller 4 via wires. The main controller 4 is also electrically connected to inverter controller 1 51 and inverter controller 2 52 via wires, providing control signals to inverter controller 1 51 and inverter controller 2 52 for switching motor 1 81 and motor 2 82 to either motor or generator mode. In motor mode, motor 1 81 and motor 2 82 are powered by battery pack 1 101 and battery pack 2 102, respectively. In generator mode, the electrical energy generated by motor 1 81 is transmitted to capacitor module 1 11 and stored via inverter controller 1 51, and the electrical energy generated by motor 2 82 in generator mode is transmitted to capacitor module 2 12 and stored via inverter controller 2 52.

[0022] Battery pack 101 is electrically connected to motor 81 via inverter controller 51 to drive rear axle 71. The current flow is: battery pack 101 → inverter controller 51 → motor 81. Battery pack 2 102 is electrically connected to motor 2 82 via inverter controller 2 52 to drive rear axle 2 72. The current flow is: battery pack 2 102 → inverter controller 2 52 → motor 2 82.

[0023] Motor 1 81 is electrically connected to capacitor module 11 via inverter controller 1 51 to store electrical energy through capacitor module 11. The current flow is: Motor 1 81 → Inverter controller 1 51 → Capacitor module 11. Motor 2 82 is electrically connected to capacitor module 2 12 via inverter controller 2 52 to store electrical energy through capacitor module 2 12. The current flow is: Motor 2 82 → Inverter controller 2 52 → Capacitor module 2 12.

[0024] Preferably, thyristors 13 are provided between battery pack 101 and inverter controller 51, between battery pack 2 102 and inverter controller 2 52, between inverter controller 51 and capacitor module 11, between inverter controller 2 52 and capacitor module 2 12, between capacitor module 11 and battery pack 101, and between capacitor module 2 12 and battery pack 2 102. The thyristors 13 are used to conduct current unidirectionally to limit the current flow.

[0025] The working process of the above-mentioned tractor electronic control chassis is as follows: The driver has two operation control modes depending on the situation: 1) When transporting on flat roads and with a small load: After the driver turns on the single-axle single-drive control switch to start the power, the inverter controller 51 connected to the battery pack 101 works. At this time, the inverter controller 52 does not work, so the motor 81 runs, driving the rear axle 71 to work and drive the rear wheel 73 to rotate, which cooperates with the front axle 6 to form an electronically controlled single-axle single-drive operation mode; 2) When going uphill or with a heavy load: After the driver turns on the dual-axle dual-drive control switch to start the power, the inverter controller 51 connected to the battery pack 101 works first. The motor 81 is energized and runs, driving the rear axle 71 to work. At the same time, the inverter controller 52 connected to the battery pack 102 works, so that the motor 82 connected to the rear axle 72 through the transmission mechanism 9 works, driving the rear axle 72 to work synchronously with the rear axle 71, which cooperates with the front axle 6 to form an electronically controlled dual-axle dual-drive operation mode. In addition, the main controller 4 provides control signals to inverter controller 1 51 and inverter controller 2 52, which can switch motor 1 81 and motor 2 82 into generator mode. The electrical energy generated by motor 1 81 in generator mode is sent to capacitor module 1 11 and stored through inverter controller 1 51, and the electrical energy generated by motor 2 82 in generator mode is sent to capacitor module 2 12 and stored through inverter controller 2 52, thereby realizing energy recovery during the operation of the tractor's electronically controlled chassis and improving energy utilization.

[0026] The aforementioned tractor electronic control chassis, through the configuration of a front axle 6, battery box 10, rear axle 1 71, rear axle 2 72, motor 1 81, motor 2 82, inverter controller 1 51, and inverter controller 2 52, can switch between two operating modes—electronically controlled single-axle single-drive and electronically controlled dual-axle dual-drive—according to load and road conditions. This effectively reduces energy consumption and enables smooth operation with heavy loads and uphill driving, solving the problems of limited load capacity, unstable operation when transporting agricultural products or supplies, and potential safety hazards associated with existing technologies. Furthermore, by electrically connecting inverter controller 1 51 and inverter controller 2 52 to capacitor module 1 11 and capacitor module 2 12 respectively, energy recovery during the operation of the tractor electronic control chassis is achieved, saving energy and improving energy utilization efficiency.

[0027] Any descriptions not covered in the above specific embodiments of this utility model belong to the well-known technology in the field, and can be implemented by referring to the well-known technology.

[0028] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tractor electronically controlled chassis, characterized in that: The system includes a frame, a driver's seat mounted on the frame, a front axle, a battery box, a first rear axle, a second rear axle, a first motor, a second motor, a first inverter controller, a second inverter controller, a first capacitor module, and a second capacitor module. The driver's seat is mounted at one end of the frame, and a steering wheel is mounted on the front of the driver's seat via a control box containing a master controller. The first and second rear axles are respectively connected to the first and second motors via transmission mechanisms. Front wheels are mounted at both ends of the front axle, and rear wheels are mounted at both ends of the first and second rear axles. The battery box contains a first battery pack and a second battery pack. The first battery pack is electrically connected to the first inverter controller and the first capacitor module, and the second battery pack is electrically connected to the second inverter controller and the second capacitor module. The first inverter controller is electrically connected to the first motor and the first capacitor module, and the second inverter controller is electrically connected to the second motor and the second capacitor module.

2. The tractor electronic control chassis according to claim 1, characterized in that: The frame is a steel frame. Inverter controller 1, capacitor module 1 and motor 1 are mounted on the frame and arranged near the rear axle 1. Inverter controller 2, capacitor module 2 and motor 2 are mounted on the frame and arranged near the rear axle 2. The battery box is mounted on the frame and located between the front axle and the rear axle 1.

3. The tractor electronic control chassis according to claim 1, characterized in that: The inverter controller one and inverter controller two are used to drive motor one and motor two to rotate respectively. The transmission mechanism is a gearbox or gears, used to transmit the power output by motor one and motor two to rear axle one and rear axle two.

4. The tractor electronic control chassis according to claim 1, characterized in that: The control box is equipped with a single-bridge single-drive control switch and a double-bridge dual-drive control switch, both of which are electrically connected to the main controller via wires.

5. The tractor electronic control chassis according to claim 4, characterized in that: The main controller is electrically connected to inverter controller one and inverter controller two via wires, and provides control signals to inverter controller one and inverter controller two for switching motor one and motor two to motor or generator mode. In motor mode, motor one and motor two are powered by battery pack one and battery pack two respectively. In generator mode, the power generated by motor one is transmitted to capacitor module one and stored via inverter controller one, and the power generated by motor two in generator mode is transmitted to capacitor module two and stored via inverter controller two.

6. The tractor electronic control chassis according to claim 5, characterized in that: Battery pack one is electrically connected to motor one through inverter controller one to drive rear axle one to operate. The current flow is: battery pack one → inverter controller one → motor one. Battery pack two is electrically connected to motor two through inverter controller two to drive rear axle two to operate. The current flow is: battery pack two → inverter controller two → motor two.

7. The tractor electronic control chassis according to claim 6, characterized in that: The first motor is electrically connected to the first capacitor module through the first inverter controller, so that the capacitor module can store electrical energy. The current flow is: first motor → first inverter controller → first capacitor module. The second motor is electrically connected to the second capacitor module through the second inverter controller, so that the capacitor module can store electrical energy. The current flow is: second motor → second inverter controller → second capacitor module.

8. The tractor electronic control chassis according to claim 7, characterized in that: Thyristors are installed between battery pack one and inverter controller one, between battery pack two and inverter controller two, between inverter controller one and capacitor module one, between inverter controller two and capacitor module two, between capacitor module one and battery pack one, and between capacitor module two and battery pack two. The thyristors are used to conduct current unidirectionally to limit the current flow.

9. The tractor electronic control chassis according to claim 1, characterized in that: The motors 1 and 2 are permanent magnet synchronous motors, the battery packs 1 and 2 are lithium battery packs, and both the front and rear wheels use solid tires.

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