CN214155307U - Tractor electric control lifting device - Google Patents

Abstract

The utility model relates to an electric control lifting device of a tractor, which comprises an electromagnetic multi-way valve, a PTO control valve group, a PTO oil cylinder, an operation panel, an angle sensor, a wire harness and a rear operation switch, which are respectively connected with a central controller through the wire harness, and the panel is adopted to control the electromagnetic multi-way valve to realize electric control, have higher adaptability to various environment, PTO adopts electric hydraulic control, can link with promotion suspension, has automatic linkage and manual linkage function, and back operating switch places in the tractor rear side, can realize that man-machine separation operation control lifting mechanism rise and fall height articulates the machines, adopts steering sensor and angle sensor to feed back tractor operating condition to central controller and carries out automatic adjustment, realizes intelligent promotion decline, compares prior art, the utility model discloses can prolong the life of machines when improving the operation travelling comfort.

Description

Tractor electric control lifting device

Technical Field

The utility model relates to a tractor field, concretely relates to automatically controlled hoisting device of tractor.

Background

In a hydraulic pipeline system of the existing tractor, an execution element is a multi-way valve, and a link mechanism is adopted for carrying out functional control such as lifting, descending, floating and the like; at present, the farming environment of most operation areas in the market is relatively severe, the continuous working time is long, the machine tool replacement back and forth needs the operation of a specially-assigned person on a tractor, if the mutual matching is not good, the service life of the machine tool is easy to damage, the labor intensity of a user is greatly increased, and the operation comfort is reduced. In addition, users in some regions are used to put hands on the control handle all the time when the users operate the handle of the multi-way valve, fine adjustment is carried out for multiple times, and sometimes the handle is not loosened when the users are lifted in place, so that the multi-way valve does not automatically return to be in a pressure-building state, and high temperature of a hydraulic system is easily caused to damage hydraulic elements.

Therefore, there is a need to develop a simple electric control lifting device suitable for a tractor, which can improve the operation comfort and prolong the service life of the machine tool.

SUMMERY OF THE UTILITY MODEL

To the defect of prior art, an object of the utility model is to provide an automatically controlled hoisting device of tractor, through improving complete machine hydraulic system, adopt electrical apparatus control panel control electromagnetism multiple unit valve to replace original mechanical structure, make hydraulic pressure raiser's control more nimble, have higher adaptability to various environment, on the other hand increases back operating button control at the tractor rear portion and promotes the decline, realize the man-machine separation operation, prolong the life of machines when improving the operation travelling comfort

In order to achieve the above purpose, the utility model adopts the technical scheme that: an electric control lifting device of a tractor comprises a central controller, an electromagnetic multi-way valve, a PTO control valve group, a PTO oil cylinder, an operation panel, an angle sensor, a wire harness and a rear operation switch; the system comprises an electromagnetic multi-way valve, a PTO control valve group, a PTO oil cylinder, an operation panel, an angle sensor and a rear operation switch, wherein the electromagnetic multi-way valve, the PTO control valve group, the PTO oil cylinder, the operation panel, the angle sensor and the rear operation switch are respectively connected with a central controller through wiring harnesses, a main line port of the wiring harnesses is connected to an engine and draws an electric signal from the engine, the electromagnetic multi-way valve is arranged on a multi-way valve support right behind the whole machine, and the electromagnetic multi-way valve is controlled to lift, descend, float, adjust and control an external machine tool through a hydraulic pipeline; the angle sensor is arranged on the right side surface of the lifter, and the lifting and descending height is controlled by controlling a pin shaft of the angle sensor to toggle the lifting shaft baffle; the PTO oil cylinder is arranged on the right side of the chassis, and the oil of the steering system is used for controlling the PTO oil cylinder through the PTO control valve group; the operation panel is arranged beside the cab seat; the rear operating switch is arranged on a rear side mudguard of the whole machine, and can realize that the lifting height of the lifter is controlled by man-machine separation to hitch the machine.

Furthermore, a lifting button and a descending button are arranged on the rear operating switch.

Further, the angle sensor monitors the descending range of the lifter in real time and transmits data to the central controller.

Furthermore, the electric control lifting device also comprises a steering sensor which is arranged between the steering wheel and the steering upright post and used for feeding back a steering angle signal of the tractor to the central controller.

Has the advantages that:

the utility model discloses an automatically controlled lift system, 1, the multiple unit valve adopts electromagnetism multiple unit valve, and the control part adopts operating panel to control and realize electric control, makes the control of hydraulic pressure lifting mechanism more nimble, has higher adaptability to various environment; 2. a rear operation switch is added at the rear part of the tractor, so that the tractor can be operated outside to control lifting and descending to hitch farm implements, man-machine separation operation is realized, and the application range of the lifter is enlarged; 3. a steering sensor and an angle sensor are arranged, and the working state of the tractor is fed back to a central controller, so that intelligent lifting and descending are realized; 4. the PTO oil cylinder is a single-action oil cylinder, and is matched with a PTO control valve group to carry out electro-hydraulic control on the PTO so that the PTO and the lifting suspension system can be linked.

Generally speaking, under the working conditions that the farming environment is relatively bad, the continuous working time is long, a driver is easily tired out and the like, the electric control lifting system is improved, the operation comfort of the lifting system is effectively improved, and the service life of machines is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection relationship of the wire harness of the present invention;

FIG. 3 is a schematic structural view of a rear operation switch;

FIG. 4 is a schematic view of a control panel;

reference numerals: 1. the automatic control system comprises an operation panel, 2, a central controller, 3, wiring harnesses I and 4, wiring harnesses II and 5, an angle sensor, 6, an electromagnetic multi-way valve, 7, a PTO control valve group, 8, a rear operation switch, 8-1, a left rear operation switch, 8-2, a right rear operation switch, 9, a rear control valve group, 10, a rising indicator light, 11, a falling indicator light, 12, a power indicator light, 13, a one-key falling key, 14, a one-key lifting key, 15, a PTO auxiliary clutch switch, 16, a hydraulic output 3 switch, 17, a hydraulic output 2 switch, 18, a hydraulic output 1 switch, 19, a height adjusting knob, 20, a tilling depth adjusting knob, 21 and a main switch.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-2, an electric control lifting device for a tractor comprises a central controller 2, an electromagnetic multi-way valve 6, a PTO control valve group 7, a PTO oil cylinder, an operation panel 1, an angle sensor 5, a wire harness and a rear operation switch 8; the automatic control system comprises an electromagnetic multi-way valve 6, a PTO control valve group 7, a PTO oil cylinder, an operation panel 1, an angle sensor 5 and a rear operation switch 8, wherein the electromagnetic multi-way valve 6, the PTO control valve group 7, the PTO oil cylinder, the operation panel 1, the angle sensor 5 and the rear operation switch 8 are respectively connected with a central controller 2 through a wiring harness I3 or a wiring harness II 4, a main line port of the wiring harness is connected to an engine to draw an electric signal from the engine, the electromagnetic multi-way valve 6 is installed on a multi-way valve bracket right behind the whole machine and is connected with a rear electromagnetic valve group 9, and the electromagnetic multi-way valve is controlled to lift, descend, float, adjust and control an external machine tool through a hydraulic pipeline; the angle sensor 5 is arranged on the right side surface of the lifter, and the lifting and descending height is controlled by controlling a pin shaft of the angle sensor 5 to toggle the lifting shaft baffle; the PTO oil cylinder is arranged on the right side of the chassis, and the oil of a steering system is used for controlling the PTO oil cylinder through a PTO control valve group 7; the operation panel 1 is installed beside a cab seat; the rear operating switch 8 is arranged on a rear side mudguard of the whole machine and comprises a left rear operating switch 8-1 and a right rear operating switch 8-2, so that the lifting height of the lifter can be controlled by man-machine separation to hitch the machine.

The electric control lifting device is also provided with a steering sensor, and the steering sensor is arranged between the steering wheel and the steering upright post and used for feeding back a steering angle signal of the tractor to the central pipe controller.

The central controller 2, the electromagnetic multi-way valve 6, the PTO control valve group 7 and the angle sensor 5 can purchase finished products on the market, the central controller 2 can use an SRC controller, the electromagnetic multi-way valve 6 can use an electromagnetic multi-way valve which is rich in Wuhan, the PTO oil cylinder is a single-action oil cylinder, a rear operation switch is connected to the central controller 2 through a wire harness as shown in figure 3, two ascending and descending operation buttons are designed on the rear operation switch, and the operation panel 1 is provided with an ascending indicator lamp 10, a descending indicator lamp 11, a power indicator lamp 12, a one-key descending button 13, a one-key ascending button 14, a PTO auxiliary clutch switch 15, a hydraulic output 1 switch 18, a hydraulic output 2 switch 17, a hydraulic output 3 switch 16, a main switch 21, a tilling depth adjusting knob 20 and a height adjusting knob 19 as shown in figure 4.

When the tractor works, the manual state, the automatic state and the stop state of the PTO are adjusted through the PTO auxiliary clutch switch 15 of the operation panel; the tilling depth is adjusted by pressing a key descending key 13 after the tilling depth is adjusted in a manual state to adjust the tilling depth for field tilling, and after the tilling depth is adjusted in an automatic state, the lifter descends while the PTO outputs power; under the manual and automatic working states, the angle sensor 5 monitors the descending range of the lifter in real time, the data transmission central controller 2 restores the deviation value and automatically adjusts the height of the lifter to the preset height, the steering sensor compares a steering angle signal of the tractor with a set value in the central controller 2, the lifter is automatically lifted to the highest position after the preset value is reached, and the damage of agricultural implements caused by the error of a driver in the turning process is avoided; the floating function is used for reducing the head warping of the tractor caused by the up-and-down swinging of the agricultural implement in the non-working state; the electrical part of the lifter is designed to adopt a feedback electrical system to improve the reliability of the whole system.

The setting of back operating switch conveniently realizes man-machine separation, when needing to articulate the agricultural implement, operating personnel can control through back operating switch and promote the decline and articulate the machines in the car rear, when comparing prior art and articulating the agricultural implement, must have operating personnel to control at the driver's cabin and promote the decline, still have the people to articulate the agricultural implement at the rear portion cooperation, saved manpower and materials, realized man-machine separation, greatly promoted the convenience.

The utility model discloses improve on current complete machine hydraulic system, the multiple unit valve adopts the electromagnetism multiple unit valve, the control part adopts the panel to control and realizes electric control, higher adaptability has to various environment, with be applicable to different operations, PTO adopts electric hydraulic control, can link with promoting the suspension, automatic linkage and manual linkage function have, on the other hand operation switch control promotes to descend after the tractor rear portion increases and realizes the man-machine separation operation, improve the application range of lifting mechanism, still adopt steering sensor and angle sensor to give central controller with tractor operating condition feedback and carry out automatic adjustment, realize intelligent promotion decline, compare prior art, prolong the life of machines when improving the operation travelling comfort.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims (4)

1. An electric control lifting device of a tractor is characterized by comprising a central controller, an electromagnetic multi-way valve, a PTO control valve group, a PTO oil cylinder, an operation panel, an angle sensor, a wire harness and a rear operation switch; the system comprises an electromagnetic multi-way valve, a PTO control valve group, a PTO oil cylinder, an operation panel, an angle sensor and a rear operation switch, wherein the electromagnetic multi-way valve, the PTO control valve group, the PTO oil cylinder, the operation panel, the angle sensor and the rear operation switch are respectively connected with a central controller through wiring harnesses, a main line port of the wiring harnesses is connected to an engine and draws an electric signal from the engine, the electromagnetic multi-way valve is arranged on a multi-way valve support right behind the whole machine, and the electromagnetic multi-way valve is controlled to lift, descend, float, adjust and control an external machine tool through a hydraulic pipeline; the angle sensor is arranged on the right side surface of the lifter, and the lifting and descending height is controlled by controlling a pin shaft of the angle sensor to toggle the lifting shaft baffle; the PTO oil cylinder is arranged on the right side of the chassis, and the oil of the steering system is used for controlling the PTO oil cylinder through the PTO control valve group; the operation panel is arranged beside the cab seat; the rear operating switch is arranged on a rear side mudguard of the whole machine, and can realize that the lifting height of the lifter is controlled by man-machine separation to hitch the machine.

2. An electrically controlled lifting device for a tractor as defined by claim 1 wherein said rear operating switch is provided with a lift button and a lower button.

3. An electrically controlled lifting device for a tractor as defined by claim 1 in which said angle sensor monitors the lowering range of the lifter in real time and transmits data to the central controller.

4. An electrically controlled lifting device for a tractor as defined by claim 1 further comprising a steering sensor mounted between the steering wheel and the steering column for feeding back a tractor steering angle signal to the central controller.

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