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Electric control method and electric control device for adjustment of hydraulic suspension position of tractor

A technology of hydraulic suspension and electronic control device, which is applied to the lifting device, adjusting device, agricultural machinery and other directions of agricultural machinery

Inactive Publication Date: 2015-04-29
JIANGSU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The focus is on the suspension device limited by the limit rod, which can only realize the electronically controlled resistance control strategy

Method used

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  • Electric control method and electric control device for adjustment of hydraulic suspension position of tractor
  • Electric control method and electric control device for adjustment of hydraulic suspension position of tractor
  • Electric control method and electric control device for adjustment of hydraulic suspension position of tractor

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Experimental program
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Embodiment Construction

[0024] The electronic control device is composed of a controller, an electro-hydraulic proportional directional valve, a display, a control panel, and an angle sensor, thereby replacing the hydraulic control valve and the mechanically controlled operating depth adjustment mechanism in the traditional tractor hydraulic suspension system.

[0025] The structure of the whole device is as figure 1 As shown, an angle sensor 5 is installed at the rotating shaft of the lifting arm 6 of the suspension device to detect the rotation angle of the lifting arm 6; The actual tillage depth is compared with the preset tillage depth, and then the difference between the two is sent to the electro-hydraulic proportional reversing valve as a negative feedback signal, and the electro-hydraulic proportional valve adjusts the tillage depth in real time according to the signal from the controller.

[0026] The driver can select the working mode through the control panel 2 according to the actual oper...

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Abstract

The invention discloses an electric control method and an electric control device for adjustment of a hydraulic suspension position of a tractor. The electric control method and the electric control device are applied to a hydraulic suspension system of the tractor. The device comprises an electro-hydraulic proportional directional valve, a controller, an angle sensor, a display, a control panel and the like. The display, the control panel and the controller are mounted in a cab of the tractor or a right wheel fender, and the controller is respectively connected with the control panel, the display, the angle sensor and the electro-hydraulic proportional directional valve through cables. The angle sensor is respectively connected onto a lifter shell of the tractor and a rotating shaft of an external lifting arm of the tractor to detect relative positions of agricultural implements to the tractor. The electro-hydraulic proportional directional valve is capable of controlling the hydraulic suspension system to lift an oil cylinder according to signals of the controller, and accordingly operation positions of the agricultural implements can be adjusted.

Description

technical field [0001] The invention relates to the field of adjusting and controlling the operating depth of agricultural tractor units, in particular to an electric control device and method for adjusting the hydraulic suspension position of a tractor. Background technique [0002] The tractor is usually connected to the agricultural implements through a hydraulic suspension device for field operations. The hydraulic suspension device controls the hydraulic oil cylinder through the hydraulic reversing valve to raise or lower the agricultural implements and adjust the operating depth of the agricultural implements. The uniformity of tractor field operation depth directly affects the level of agronomy, and is also an important indicator to measure the level of tractor operation. In order to realize the uniformity of the tractor's field operation depth, the suspension device has control methods such as position control, resistance control, and force-position comprehensive co...

Claims

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Application Information

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IPC IPC(8): A01B63/10
Inventor 高翔夏长高商高高王建平曹磊磊韩江义
Owner JIANGSU UNIV
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