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Bidirectional control electro-hydraulic suspension system of tractor

A two-way control, suspension system technology, applied in agricultural machinery, mechanical equipment, lifting devices of agricultural machinery, etc., can solve the problems of left and right balance adjustment, affecting the effect of farming, unable to achieve the depth of operation, etc., to achieve precise adjustment and improve operation accuracy. Effect

Inactive Publication Date: 2021-03-12
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current hydraulic suspension system can only realize the adjustment of the working depth up and down. For some uneven fields, the left and right balance adjustment of the working depth cannot be realized, thus affecting the farming effect

Method used

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  • Bidirectional control electro-hydraulic suspension system of tractor
  • Bidirectional control electro-hydraulic suspension system of tractor

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Experimental program
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Embodiment

[0022] Such as figure 1 , 2 As shown, the present invention includes a lifter assembly 1 , a proportional solenoid valve 2 , a controller module 3 , a double gear pump 4 , and a hydraulic oil tank 5 .

[0023] The lifter assembly includes a lifter housing 101, two sub-assembly systems arranged in the lifter housing 101, the two sub-assembly systems have the same structure, including a lifter worm 102, a lifter connecting sleeve 103, a lifter drive motor 104. Lifter angle sensor 105, lifter rotating arm 106, lifter worm gear 107, lifter connecting shaft 108; the two lifting rotating arms and the lifting device connecting shaft are completely separated and move independently, and the oil outlet of the hydraulic oil tank 5 is connected to the double-connected The oil inlet of the gear pump 4 is connected. When the external power drives the double gear pump 4 to rotate, the hydraulic oil in the hydraulic oil tank 5 can be sucked in, and the oil is fed from the oil outlet of the d...

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PUM

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Abstract

The invention belongs to the technical field of agricultural machinery, and particularly relates to a bidirectional control electro-hydraulic suspension system of a tractor. The system comprises a lifter assembly and two proportional electromagnetic valves connected with the lifter assembly, wherein the two proportional electromagnetic valves comprise the first proportional electromagnetic valve and the second proportional electromagnetic valve. A hydraulic oil tank is simultaneously connected with the first proportional electromagnetic valve and the second proportional electromagnetic valve through a duplicate gear pump and then supplies hydraulic oil to two sub-assembly systems in the lifter assembly. An electric control system controls the proportional electromagnetic valves through feedback signals of the two sub-assembly systems. The two turbine worms are adopted for achieving left-right balance of the operation depth, when tillage is uneven, for two hydraulic motors output signals through a controller module, the amount of hydraulic oil entering the hydraulic motors is manually reduced or increased, and the tillage level is achieved through automatic adjustment.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a tractor bidirectional control electro-hydraulic suspension system. Background technique [0002] The tractor usually connects the agricultural implements with the hydraulic suspension device for field work, and the hydraulic suspension device controls the hydraulic oil cylinder through the hydraulic reversing valve to raise or lower the agricultural implements and adjust the working depth of the agricultural implements. The uniformity of tractor field operation depth directly affects the cultivation level. The current hydraulic suspension system can only realize the adjustment of the working depth up and down. For some uneven fields, the left and right balance adjustment of the working depth cannot be realized, thus affecting the farming effect. Contents of the invention [0003] Above-mentioned technical problem of the present invention is mai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B63/111A01B63/114F15B13/08F15B13/044F15B15/04
CPCA01B63/111A01B63/1117A01B63/114F15B13/085F15B13/086F15B15/04F15B2013/0448
Inventor 廖斌
Owner HUBEI UNIV OF TECH
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