Hydraulic system and adjusting method for floating of agricultural implement

A technology for hydraulic systems and agricultural machinery, applied in mechanical equipment, fluid pressure actuating devices, servo motors, etc., can solve the problems of easy leakage of the spool valve structure, complicated valve housing oil circuit, and high requirements for casting technology, and achieves overcoming The valve body is difficult to process, has a wide range of applications, and achieves convenient effects

Inactive Publication Date: 2018-11-16
QINGDAO TECHNOLOGICAL UNIVERSITY
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AI Technical Summary

Problems solved by technology

The operation method is still manual, which is laborious and has poor control effect; the oil circuit inside the valve housing is complicated, and the casting technology requirements are high; the slide valve structure is easy to leak; there is no forced drop function, and it can only be lowered by the weight of the machine itself and the floating function is single

Method used

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  • Hydraulic system and adjusting method for floating of agricultural implement
  • Hydraulic system and adjusting method for floating of agricultural implement
  • Hydraulic system and adjusting method for floating of agricultural implement

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Embodiment Construction

[0032] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0034] As introduced in the background technology, there are deficiencies in the prior art. In order to solve th...

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Abstract

The invention discloses a hydraulic system and an adjusting method for floating of an agricultural implement. According to the hydraulic system and the adjusting method, the problem that in the priorart, the floating operation of the agricultural implement is labor-consuming is solved, and the beneficial effects of being convenient to control, reliable in locking and wide in application range areachieved. According to the scheme, the hydraulic system for floating of the agricultural implement comprises an oil cylinder for the agricultural implement, a lifting loop, a free floating loop and aload floating loop are arranged between the oil cylinder and an oil tank, wherein the free floating loop and the load floating loop are connected with the lifting loop in parallel, the free floatingloop comprises at least one-way valve, one ends of the one-way valves are connected with the oil cylinder, the other ends of the one-way valves are connected with the oil tank through electromagneticreversing valves, the load floating loop comprises the first electromagnetic reversing valve, the oil outlet of the first electromagnetic reversing valve is connected with the oil cylinder, and the oil inlet of the first electromagnetic reversing valve is connected with the oil tank.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a hydraulic system and adjustment method for floating agricultural machinery. Background technique [0002] "Floating" is a special working state of the oil cylinder. In this working state, the rod chamber and the rodless chamber of the oil cylinder communicate with each other and connect to the oil tank. The working device connected to the oil cylinder is in a free state. The unevenness is manipulated. The floating function is widely used in the field of construction machinery and agricultural machinery, and in the field of agricultural machinery, floating is used for operations such as farming and digging harvesting. figure 1 with figure 2 It is a schematic diagram of plowing and digging harvesting operations with height adjustment. The depth wheel is in contact with the ground during the operation, and the oil cylinder is switched to the floating position. It moves up...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/08
CPCF15B11/08Y02A40/22
Inventor 杨勇彭帅寇天鑫王超
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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