Tractor lifter control device

Abstract

The utility model discloses a tractor lifter control device which comprises a control unit and a communication unit, the communication unit is in communication connection with a lifter controller, the tractor lifter control device further comprises a control panel, and a strong pressure switching component and a pressure adjusting switch are arranged on the control panel. The strong pressure switching component inputs a pressure control mode signal to the control unit, the control unit transmits the pressure control mode signal to the lifter controller through the communication unit, and the lifter controller is switched to a strong pressure mode or a free mode; the high-pressure switching component is controlled to enter a high-pressure mode, then the pressure adjusting switch is operated, a pressure adjusting signal is input to the control unit, the control unit transmits the pressure adjusting signal to the lifter controller through the communication unit, and the lifter controller outputs a corresponding PWM pulse signal to the lifter; the mode can also be switched to a free mode through the high-pressure switching component. Therefore, according to the remote control device, a driver can remotely operate the lifter, the labor intensity is reduced, and the use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a tractor lift control device. Background Art

[0002] In order to lift or lower the agricultural implements towed behind the tractor, a lifter is installed behind the tractor, and the lifting arm of the lifter is driven up and down by a hydraulic system. With the development of technology, an electric lifter has appeared, and the lifter controller outputs a PWM pulse signal to control the lifting and lowering of the lifting arm, the lifting strength, etc.

[0003] In the prior art, a control panel is provided in the cab, and the control panel communicates with the lift controller so that the driver can conveniently control the lift. However, the control functions on the existing control panel are limited. For example, it is not possible to conveniently switch the pressure control mode of the lift in the cab, it is not possible to conveniently switch between the strong pressure mode and the free mode, and it is not possible to display lift faults, etc. Therefore, the existing control panel cannot meet all usage requirements. Utility Model Content

[0004] In view of the above-mentioned deficiencies, the technical problem to be solved by the utility model is to provide a tractor lift control device, which can more comprehensively control the lifter at a long distance, reduce the labor intensity of the driver, and meet various usage requirements.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A tractor lift control device comprises a control unit and a communication unit electrically connected to the control unit, the communication unit is communicatively connected to the lift controller, the device also comprises a control panel, a strong pressure switching component and a pressure regulating switch are respectively arranged on the control panel, the strong pressure switching component and the pressure regulating switch are respectively electrically connected to the control unit; the strong pressure switching component inputs a pressure control mode signal to the control unit, the control unit transmits the pressure control mode signal to the lift controller through the communication unit, and the lift controller switches to the strong pressure mode or the free mode; in the strong pressure mode, the pressure regulating switch is operated to input a pressure regulating signal to the control unit, the control unit transmits the pressure regulating signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift.

[0007] Preferably, a fault display unit is further provided on the control panel, and the fault display unit is electrically connected to the control unit; the lift controller transmits a display signal to the control unit via the communication unit, and the control unit controls the display of the fault display unit.

[0008] A preferred embodiment is that a jog up button and a jog down button are further provided on the control panel, and the jog up button and the jog down button are electrically connected to the control unit respectively; the jog up button is operated to input an up signal to the control unit, and the control unit transmits the up signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift; the jog down button is operated to input a down signal to the control unit, and the control unit transmits the down signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift.

[0009] Preferably, the high-pressure switching component includes a single-position switch.

[0010] Preferably, the fault display unit includes a digital tube display screen.

[0011] Preferably, the communication unit is a CAN communication unit.

[0012] Preferably, the device comprises a bottom shell and an upper shell buckled together, the control panel is arranged on the upper shell; and a communication interface electrically connected to the communication unit is arranged on the bottom shell.

[0013] Preferably, a mainboard is arranged in the space enclosed by the bottom shell and the upper shell, the control unit is arranged on the mainboard, and a back panel light is also arranged on the mainboard, and the back panel light is electrically connected to the control unit.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] Since the tractor lifter control device of the utility model includes a control unit and a communication unit, the communication unit is connected to the lifter controller by communication, and the device also includes a control panel, on which a strong pressure switching component and a pressure regulating switch are respectively provided, and the strong pressure switching component and the pressure regulating switch are respectively electrically connected to the control unit; the strong pressure switching component inputs a pressure control mode signal to the control unit, and the control unit transmits the pressure control mode signal to the lifter controller through the communication unit, and the lifter controller switches to the strong pressure mode or the free mode. In actual use, the driver can remotely control the lifter in the cab, such as controlling the strong pressure switching component to enter the strong pressure mode, at which time the pressure regulating switch can be operated in the cab, and the pressure regulating signal can be input to the control unit, and the control unit transmits the pressure regulating signal to the lifter controller through the communication unit, and the lifter controller outputs the corresponding PWM pulse signal to the lifter to control the lifting pressure of the lifter; of course, the driver can switch to the free mode through the strong pressure switching component, and at this time the lifter pressure control enters the free mode. It can be seen that the utility model enables the driver to remotely operate the lifter to reduce labor intensity and meet the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the tractor lift control device in the utility model;

[0017] Figure 2 It is a top view of the tractor lift control device in the utility model;

[0018] Figure 3 It is a principle block diagram of the tractor lift control device in the utility model;

[0019] In the figure: 1-upper shell, 2-bottom shell, 3-CAN communication interface, 4-control panel, 5-single gear switch, 6-digital tube display screen, 70-jog up button, 71-jog down button, 8-pressure adjustment switch. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0022] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, a tractor lift control device includes a control unit and a communication unit electrically connected to the control unit, the communication unit is communicatively connected to the lift controller, in this embodiment the communication unit is a CAN communication unit, the CAN communication unit includes a CAN communication interface 3, and the CAN communication interface 3 is connected to the lift controller.

[0024] The device also includes a control panel 4, on which a strong pressure switching component and a pressure regulating switch 8 are respectively provided, and the strong pressure switching component and the pressure regulating switch 8 are respectively electrically connected to the control unit. The strong pressure switching component inputs a pressure control mode signal to the control unit, and the control unit transmits the pressure control mode signal to the lift controller through the communication unit, and the lift controller switches to the strong pressure mode or the free mode. In the strong pressure mode, the pressure regulating switch 8 is operated to input a pressure regulating signal to the control unit, and the control unit transmits the pressure regulating signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift. Since the utility model is provided with a strong pressure switching component and a pressure regulating switch 8, the degree of strong pressure of the tractor can be adjusted according to the hardness of the soil layer.

[0025] like Figure 1 As shown, in this embodiment, the strong pressure switching component includes a single-gear switch 5, which can be turned in two directions, left and right. When turned to the left, the strong pressure mode is selected. At this time, the control unit detects the state of the single-gear switch 5, and transmits the pressure control mode signal corresponding to the strong pressure mode to the lift controller through the CAN communication unit. After the lift controller receives the signal, it turns on the strong pressure mode. In the strong pressure mode, the pressure regulating switch 8 on the control panel 4 rotates, and this rotation is converted into a pressure regulating signal. After the control unit collects the pressure regulating signal, it is transmitted to the lift controller through the CAN communication unit. The lift controller outputs the corresponding PWM pulse signal according to the received pressure regulating signal to control the opening of the lift valve of the lift, thereby causing the change of the hydraulic flow to control the action of the tractor lift.

[0026] Similarly, when the single-speed switch 5 is turned to the right, the free mode is selected. At this time, the control unit detects the state of the single-speed switch 5, and transmits the pressure control mode signal corresponding to the free mode to the lift controller through the CAN communication unit. The lift controller exits the high pressure mode according to the received signal.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, a fault display unit is also provided on the control panel 4 of the utility model, and the fault display unit is electrically connected to the control unit; the lift controller transmits a display signal to the control unit via the communication unit, and the control unit controls the display of the fault display unit.

[0028] In this embodiment, the fault display unit includes a digital tube display screen 6, and the lift controller is electrically connected to sensors, control units, and high-pressure electric control lift valves set at different positions through the CAN bus; at the same time, the lift controller classifies the faults encountered during use according to the CAN bus, and can preset the display content of mild faults to 010-019, the display content of moderate faults to 020-029, the display content of severe faults to 030-039, and the display content of no faults to 000. After the lift controller detects the above faults, it transmits the corresponding display signal to the control unit through the CAN communication unit, and the control unit controls the digital tube display screen 6 to display the corresponding content. The user can quickly derive the fault type based on the display content of the digital tube display screen 6, thereby saving troubleshooting time and handling the fault in a timely manner. Of course, the fault display unit is not limited to the digital tube display screen 6 listed above, and can be displayed using indicator lights, liquid crystal screens, etc.

[0029] like Figure 1 , Figure 2 and Figure 3 As shown, the control panel 4 of the utility model is also provided with a jog rise button 70 and a jog fall button 71, and the jog rise button 70 and the jog fall button 71 are electrically connected to the control unit respectively. The jog rise button 70 is operated to input an ascending signal to the control unit, and the control unit transmits the ascending signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift; the jog fall button 71 is operated to input a descending signal to the control unit, and the control unit transmits the descending signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift. Since the jog rise button 70 and the jog fall button 71 are provided, the fine-tuning function requirements of the lift can be directly realized, which facilitates the installation of various agricultural machinery on the lift.

[0030] When the inching up button 70 is pressed, the control unit detects the state of the inching up button 70, and transmits a corresponding up signal to the lift controller through the CAN communication unit. The lift controller outputs a corresponding PWM pulse signal according to the received up signal. When the PWM pulse signal output reaches 100%, the opening of the high-pressure electric control lift valve reaches the maximum, and the lift starts to rise. The rising height can be controlled by the length of time the inching up button 70 is pressed; thereby the expected height position is easily reached.

[0031] When the inching descent button 71 is pressed, the control unit detects the state of the inching descent button 71, and transmits a corresponding descent signal to the lift controller through the CAN communication unit. The lift controller outputs a corresponding PWM pulse signal according to the received descent signal. When the PWM pulse signal output reaches 100%, the opening of the high-pressure electric-controlled lift valve reaches the maximum, and the lift starts to descend. The descent height is controlled by the length of time the inching descent button 71 is pressed; thereby, the expected falling position is easily reached.

[0032] like Figure 1 and Figure 2 As shown, the utility model comprises a bottom shell 2 and an upper shell 1 which are buckled together, a control panel 4 is arranged on the upper shell 1; and a communication interface electrically connected to the communication unit is arranged on the bottom shell 2. In a preferred solution, a main board is arranged in the space enclosed by the bottom shell 2 and the upper shell 1, a control unit is arranged on the main board, and a back panel light is also arranged on the main board, and the back panel light is electrically connected to the control unit. By setting the position of the back panel light, the single-shift switch 5, the inching up button 70 and the inching down button 71, etc., are illuminated in the corresponding use state to issue an indication, so that the buttons and logos of the control panel 4 are light-transmissive, which is convenient for nighttime operation.

[0033] In addition, the control panel 4 of the utility model is also provided with a gear switch knob, a deep plowing knob, a function knob, etc., and a plurality of buttons and knobs are operated in combination to achieve the desired operation effect for a variety of agricultural lands.

[0034] In summary, the tractor lifter control device of the utility model can enable the driver to remotely operate the lifter to reduce labor intensity, meet usage requirements, and has a simple structure and is easy to implement.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications made within the spirit and principles of the present invention, improvements to the tractor hoist control device, etc., should be included in the protection scope of the present invention.

Claims

1. A tractor lift control device, comprising a control unit and a communication unit electrically connected to the control unit, wherein the communication unit is communicatively connected to a lift controller, characterized in that: The device further comprises a control panel, on which a strong pressure switching component and a pressure regulating switch are respectively provided, and the strong pressure switching component and the pressure regulating switch are respectively electrically connected to the control unit; The strong pressure switching component inputs a pressure control mode signal to the control unit, and the control unit transmits the pressure control mode signal to the lift controller through the communication unit, and the lift controller switches to the strong pressure mode or the free mode; In the strong pressure mode, the pressure regulating switch is operated to input a pressure regulating signal to the control unit, and the control unit transmits the pressure regulating signal to the booster controller through the communication unit, and the booster controller outputs a corresponding PWM pulse signal to the booster.

2. The tractor lift control device according to claim 1, characterized in that: The control panel is also provided with a fault display unit, and the fault display unit is electrically connected to the control unit; the lift controller transmits a display signal to the control unit through the communication unit, and the control unit controls the display of the fault display unit.

3. The tractor lift control device according to claim 1, characterized in that: The control panel is also provided with a jog up button and a jog down button, and the jog up button and the jog down button are electrically connected to the control unit respectively; The inching up button is operated to input an up signal to the control unit, and the control unit transmits the up signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift; The jog down button is operated to input a down signal to the control unit, and the control unit transmits the down signal to the lift controller through the communication unit, and the lift controller outputs a corresponding PWM pulse signal to the lift.

4. The tractor lift control device according to claim 1, characterized in that: The high-pressure switching component includes a single-position switch.

5. The tractor lift control device according to claim 2, characterized in that: The fault display unit comprises a digital tube display screen.

6. The tractor lift control device according to any one of claims 1 to 5, characterized in that: The communication unit is a CAN communication unit.

7. The tractor lift control device according to claim 1, characterized in that: The device comprises a bottom shell and an upper shell which are buckled together, the control panel is arranged on the upper shell; and a communication interface which is electrically connected to the communication unit is arranged on the bottom shell.

8. The tractor lift control device according to claim 7, characterized in that: A mainboard is arranged in the space enclosed by the bottom shell and the upper shell, the control unit is arranged on the mainboard, and a back panel light is also arranged on the mainboard, and the back panel light is electrically connected to the control unit.

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