Electric control lifting control system for tractor

Abstract

The utility model discloses an electric control lifting control system for a tractor, which comprises a vehicle control unit, a control unit is arranged in the vehicle control unit, and the control unit is connected with a power supply input module, a key switch module, a handle module, a knob and angle setting detection module, a valve group and a combination instrument; the on-off state of each input signal and the working state of the valve are displayed on the combination instrument in real time, and when the signal is abnormal or reaches a limit value, a driver is reminded to buzz and give an alarm. According to the utility model, a dual-mode operation mode is adopted, so that the operation convenience and reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tractor electric control operation technology field, more specifically, it relates to a tractor electric control lifting control system. BACKGROUND

[0002] With the upgrading of electric control technology, in order to reduce the labor intensity of machine hand, improve the comfort of machine hand driving, above medium, large power tractor three point suspension lifting device selects electro-hydraulic control, that is, switch solenoid valve or digital proportional valve drives the extension and retraction of hydraulic cylinder, drives the lifting and lowering of machine suspension arm (lower pull rod), the conventional mode is to install an operation panel on the cab control box, the panel is arranged with operation switch, height, depth knob, indicating lamp or liquid crystal screen display, the controller can be built-in in the operation panel or independently installed, the prior art has the following shortcomings:

[0003] 1, high system cost, prominent in state display or indication, alarm, need to design indicating lamp, display screen;

[0004] 2, inconvenient operation, machine hand operation needs to bend down to operate, and the driving safety is not good;

[0005] 3, poor maintenance convenience, too integrated, once part of the components fails, needs to replace the assembly;

[0006] 4, installation space is limited, needs to design independent installation position. UTILITY MODEL CONTENT

[0007] (I) the technical problem solved

[0008] In view of the problems in the prior art, the utility model provides a tractor electric control lifting control system to solve the technical problems mentioned in the background art.

[0009] (II) technical scheme

[0010] In order to achieve the above object, the utility model provides the following technical scheme: a tractor electric control lifting control system, including whole vehicle controller, the inside of whole vehicle controller is provided with control unit, control unit is connected with power input module, key switch module, handle module, knob and angle setting detection module, valve group and combination instrument;

[0011] The on-off state of each input signal and the working state of the valve are displayed on the combination instrument in real time, when the signal is abnormal or reaches the limit value, the machine hand is reminded and buzzer alarm is given.

[0012] The utility model further sets up, the key switch module analog quantity input signal module and output signal module, analog quantity input signal module includes height setting knob, depth setting knob and angle sensor, and output signal module includes the lifting device rises valve (high level), the lifting device falls valve (high level) and machine tool left and right overturns valve.

[0013] The utility model further sets up, the handle module includes six key CAN bus handle.

[0014] The utility model further sets up, six key CAN bus handle includes rise switch, fall switch, float switch, left overturn switch, right overturn switch and enable switch.

[0015] (Three) beneficial effect

[0016] Compared with the prior art, the utility model provides a tractor electric control lifting control system has the following beneficial effects:

[0017] The utility model dual mode operation mode, improve operation convenience and reliability, dual mode control mode, automatic, manual control lifting device rises, falls, depth, height can be set, calibration (instrument compatibility), in addition, during use, the whole equipment maintenance dismounts conveniently, for some unskilled staff can effectively prevent misoperation, the whole equipment is integrated to the prior art parts, reduces system cost. DETAILED DESCRIPTION

[0018] Figure 1 It is the whole flow chart of a tractor electric control lifting control system in the utility model. DETAILED DESCRIPTION

[0019] It should be noted that, in the case of no conflict, the embodiment and the feature in the embodiment in the application can be combined with each other. The utility model will be described in detail below with reference to the drawings and in combination with the embodiment.

[0020] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the application have the same meaning as that generally understood by the ordinary skilled person in the technical field to which the application belongs.

[0021] In the utility model, the orientation such as "up, down" is generally for the direction shown in the drawing, or for the vertical, perpendicular or gravity direction, unless otherwise stated. Similarly, for the convenience of understanding and description, "left, right" is generally for the left and right shown in the drawing, and "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0022] Please refer to Figure 1The utility model provides an electric control lifting control system for tractor, including whole vehicle controller, control unit is arranged in whole vehicle controller, control unit is connected with power input module, button switch module, handle module, knob and angle setting detection module, valve group and combination instrument,

[0023] The combination instrument displays the on-off state of each input signal and the working state of the valve in real time, and prompts the operator and buzzes and alarms when the signal is abnormal or reaches the limit value.

[0024] In further embodiments of the utility model, the button switch module analog input signal module and output signal module, analog input signal module includes height setting knob, depth setting knob and angle sensor, output signal module includes lifter rises valve (high level), lifter falls valve (high level) and machine tool left and right overturns valve.

[0025] In further embodiments of the utility model, the handle module includes six-key CAN bus handle, and the six-key CAN bus handle includes rising switch, falling switch, floating switch, left overturning switch, right overturning switch and enabling switch.

[0026] Working principle:

[0027] The independent control unit module or is built in whole vehicle controller, and the lifter is controlled to rise and fall, and the input signal includes six-key CAN bus handle (including rising switch, falling switch, floating switch, left overturning switch, right overturning switch, enabling switch, and the hard-wired input signal is same as above (spare). Analog input signal module includes height setting knob, depth setting knob, angle sensor, and output signal module is lifter rises valve (high level), lifter falls valve (high level) and machine tool left and right overturns valve. The system sends each action signal and state of the lifter to the instrument in real time in the form of bus, and the specific implementation is as follows:

[0028] Arrangement control of hard-wired input signal part:

[0029] The switch and knob corresponding to the needs of the system are arranged on the control box on the right side of the operator.

[0030] Automatic mode of lifting or falling, rotate height or depth knob, first preset the maximum height of lifter rise or the minimum depth of fall (according to demand) and send the signal to the controller and instrument control and display, press the rising or falling switch for 0.5 seconds, then release the hand, and the lifter valve group automatically rises to the preset height or falls to the preset depth and stops action, and the controller sends the angle signal received in real time to the instrument, so that the operator can master the position of the lifter.

[0031] Manual mode of lifting or falling

[0032] Point or long press the up switch, the elevator starts to act, stop working when you let go, when reaching the maximum theoretical height of the angle sensor, even if not let go, the elevator automatically stops, equivalent to the controller has an upper limit protection, to protect the mechanical movement beyond the limit of operation damage. Point or long press the down button, the elevator starts to act, stop working when you let go, when reaching the maximum theoretical depth of the angle sensor, even if not let go, the elevator automatically stops, equivalent to the controller has a lower limit protection, to protect the mechanical movement beyond the limit of operation damage.

[0033] Floating switch, tool left and right turnover switch, are switch output, press down to connect, let go of the hand to close.

[0034] Bus control: CAN handle control, any key on the handle works at the same time, you must also press the enable button on the handle to prevent misoperation. The controller receives the CAN message sent by the handle, and drives the corresponding working valve according to the definition, which is accurate and sensitive.

[0035] Real-time display and alarm: the on-off state of each input signal and the working state of the valve are displayed on the whole vehicle combination instrument in real time, and when the signal is abnormal or reaches the limit value, the operator is reminded and the buzzer alarm is sounded.

[0036] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An electronically controlled lifting control system for a tractor, characterized in that: It includes a vehicle controller, which is internally provided with a control unit, which is connected to a power input module, a key switch module, a handle module, a knob and angle setting detection module, a valve group and a combination instrument; The instrument cluster displays the on / off status of each input signal and the working status of the valve in real time. When the signal is abnormal or reaches the limit value, the operator is reminded and a buzzer alarm sounds.

2. The electric lifting control system for a tractor according to claim 1, characterized in that: The key switch module analog input signal module and output signal module, the analog input signal module includes a height setting knob, a depth setting knob and an angle sensor, the output signal module includes a lifter rising valve, a lifter descending valve and a tool left and right flip valve.

3. The electric lift control system for a tractor according to claim 1, characterized in that: The handle module includes a six-button CAN bus handle.

4. The electric lift control system for a tractor according to claim 3, characterized in that: The six-button CAN bus handle includes an up switch, a down switch, a float switch, a left flip switch, a right flip switch and an enable switch.

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