Header one-key lifting system applied to agricultural machinery

Abstract

The utility model discloses a header one-key lifting system applied to agricultural machinery, which comprises an electric control system, an oil way system, an electromagnetic valve and an induction system, the electric control system is used for controlling the opening and closing of the electromagnetic valve, the oil way system is used for controlling the lifting of each header, and the electromagnetic valve is used for controlling the trend of hydraulic oil in the oil way system; the electric control system comprises a plurality of buttons and a controller, the buttons are used for sending signals to the controller, the controller is used for receiving the signals and controlling the electromagnetic valve, and the sensing system is used for sensing the position of the header.

Description

Technical Field

[0001] The utility model relates to a one-key lifting system for a cutting platform on agricultural machinery. Background Art

[0002] Currently, harvesters raise and lower their headers by pressing and holding a button on the handlebar to activate a mechanical lever. Frequent adjustments to the header are required when maneuvering the entire vehicle during field work. This prolonged effort significantly increases the operator's workload, resulting in lower harvesting efficiency and increased operator fatigue. Utility Model Content

[0003] The purpose of the utility model is to solve the above deficiencies in the prior art and to provide a one-button lifting system for a cutting platform on agricultural machinery.

[0004] A one-button lifting system for a cutting platform on agricultural machinery includes an electronic control system, an oil circuit system, a solenoid valve, and a sensing system. The electronic control system is used to control the opening and closing of the solenoid valve, the oil circuit system is used to control the lifting of each platform, and the solenoid valve is used to control the direction of the hydraulic oil in the oil circuit system; the electronic control system includes multiple buttons and a controller, the buttons are used to send signals to the controller, the controller is used to receive signals and control the solenoid valve, and the sensing system is used to sense the position of the cutting platform.

[0005] Furthermore, the sensing system includes an angle sensor and an instrument. The angle sensor is installed on a fixed plate. The sensing end of the angle sensor is movably connected to the moving guide rail on the cutting platform. The angle sensor is used to sense the travel data of the cutting platform and send the data signal to the instrument. The instrument is used to calculate the distance of the cutting platform from the ground based on the data signal sent by the angle sensor and send the distance signal to the controller. When the distance of the cutting platform from the ground reaches a preset value, the controller controls the solenoid valve to close.

[0006] Furthermore, the controller includes a safety limiting unit, and the safety limiting unit is used to control the opening time of the solenoid valve.

[0007] Beneficial Effects: Compared with existing technologies, this new system uses a button to send a signal to a controller, controlling the operating state of a solenoid valve, enabling the cutting platform to be raised and lowered in one step. An angle sensor calculates the cutting platform's real-time distance from the ground, stopping the cutting platform when it reaches its highest or lowest point. This system also limits the cutting platform's raising and lowering time, preventing damage to the oil system caused by continued operation when the cutting platform reaches its travel limit. The system's simple control logic reduces the complexity of harvester operation, making harvesting simpler for the operator, reducing labor intensity, and improving harvesting quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of a one-button lifting system for the header on agricultural machinery;

[0009] Figure 2 This is a schematic diagram of the assembly of the angle sensor and the header;

[0010] Figure 3 This is a schematic diagram of the button;

[0011] In the figure, 1. Angle sensor, 2. Motion guide rail, 3. Cutting platform, 4. Handle, 5. Armrest box, 6. Button. DETAILED DESCRIPTION

[0012] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0013] like Figure 1-3 As shown, angle sensor 1, motion guide rail 2, header 3, handle 4, armrest box 5, button 6;

[0014] A one-button lifting system for a cutting platform on agricultural machinery includes an electronic control system, an oil circuit system, a solenoid valve, and a sensing system. The electronic control system is used to control the opening and closing of the solenoid valve, the oil circuit system is used to control the lifting of each platform, and the solenoid valve is used to control the direction of the hydraulic oil in the oil circuit system; the electronic control system includes multiple buttons 6 and a controller. The buttons 6 are used to send signals to the controller, the controller is used to receive signals and control the solenoid valve, and the sensing system is used to sense the position of the cutting platform 3.

[0015] It should be noted that button 6 is a normally open switch, which includes a one-touch lift button 6 and a one-touch lower button 6. These buttons 6 are located on the handle 4 behind the armrest box 5. When the button 6 is pressed, the armrest box 5 or the handle 4 senses the closure of the switch, and a message is sent to the controller via the CAN line. The controller starts to energize the solenoid valve after receiving the message. The solenoid valve opens after energization, and the oil circuit is unobstructed. According to the message sent by different buttons 6, the solenoid valve switches to different positions, so that different oil ports are connected, thereby controlling the rise and fall of the cutting platform 3. During the one-touch lifting process, if you want to stop this function in advance after reaching the height, you can tap the button 6 for lifting the cutting platform 3 to exit the one-touch lifting mode.

[0016] During operation, the controller can detect the status of the output circuit to the solenoid valve - normal, open circuit, short circuit.

[0017] In this example, the sensing system includes an angle sensor 1 and an instrument. The angle sensor 1 is installed on a fixed plate. The sensing end of the angle sensor 1 is movably connected to the moving guide rail 2 on the cutting platform 3. The angle sensor 1 is used to sense the travel data of the cutting platform 3 and send the data signal to the instrument. The instrument is used to calculate the distance of the cutting platform 3 from the ground based on the data signal sent by the angle sensor 1, and send the distance signal to the controller. When the distance of the cutting platform 3 from the ground reaches a preset value, the controller controls the solenoid valve to close.

[0018] It should be noted that when the header 3 is raised or lowered, the travel of the angle sensor 1 above it changes. This causes the analog voltage output to the meter to change. The meter analyzes the voltage from the angle sensor 1 and calculates the current height of the header 3 from the ground. This position is then sent to the controller. The one-touch lift function can be terminated when the header 3 reaches its lowest and highest points.

[0019] In this example, the controller includes a safety limiter unit that controls the opening time of the solenoid valve. It should be noted that the one-touch lift function can be used even when the controller does not receive position data from the angle sensor 1 sent by the instrument. When the controller receives a command from the armrest box 5 or a signal from the handle 4, it energizes the solenoid valve for only 10 seconds. After 10 seconds, the current output ceases regardless of whether the position is in place.

[0020] Operation: When the controller receives a one-touch raise / lower signal from the handrail or handle, it continuously supplies current to the solenoid valve. The solenoid's magnetic field opens the valve core, causing hydraulic oil to flow into the header cylinder, causing the header to raise or lower. The meter monitors the angle sensor's reading. When the header reaches its highest or lowest position, the meter sends a message to the controller, instructing it to stop supplying current to the solenoid valve. Once the current stops, the valve core returns to its original position, and the header stops raising or lowering.

[0021] If the controller does not receive the position data of the height sensor sent by the instrument, the one-key lifting function can still be performed. When the controller receives the command of the one-key lifting of the armrest box, the controller energizes the solenoid valve for only 10 seconds. After 10 seconds, the current output will stop regardless of whether it is in place.

[0022] During one-button lifting, if you want to stop the function in advance after reaching the height, you can tap the header lifting button to exit the one-button lifting mode.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A one-button lifting system for a cutting platform on agricultural machinery, characterized in that: It includes an electronic control system, an oil circuit system, a solenoid valve, and a sensing system. The electronic control system is used to control the opening and closing of the solenoid valve, the oil circuit system is used to control the lifting of each platform, and the solenoid valve is used to control the direction of the hydraulic oil in the oil circuit system; the electronic control system includes multiple buttons and a controller. The buttons are used to send signals to the controller, the controller is used to receive signals and control the solenoid valve, and the sensing system is used to sense the position of the cutting platform.

2. The one-button lifting system for a header on agricultural machinery according to claim 1 is characterized in that: The sensing system includes an angle sensor and an instrument. The angle sensor is installed on a fixed plate. The sensing end of the angle sensor is movably connected to the moving guide rail on the cutting platform. The angle sensor is used to sense the travel data of the cutting platform and send the data signal to the instrument. The instrument is used to calculate the distance of the cutting platform from the ground based on the data signal sent by the angle sensor and send the distance signal to the controller. When the distance of the cutting platform from the ground reaches a preset value, the controller controls the solenoid valve to close.

3. The one-button lifting system for a header on agricultural machinery according to claim 1 is characterized in that: The controller includes a safety limiting unit, and the safety limiting unit is used to control the opening time of the solenoid valve.

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