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Upper structure electro-hydraulic rotary control valve of mechanical operation crane

A mechanical operation and crane technology, applied in the field of vehicle hydraulic valves, can solve the problems of large control system, low degree of automation, difficult installation and maintenance, etc., and achieve the effect of small valve body, high degree of automation and low manufacturing cost

Active Publication Date: 2010-07-07
卢宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Or use the pedal control method together with the electromagnetic reversing valve, which makes the control system huge, difficult to install and maintain, and low in automation; The control elements are combined in a unique way, but the structure is complex, bulky and expensive

Method used

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  • Upper structure electro-hydraulic rotary control valve of mechanical operation crane
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  • Upper structure electro-hydraulic rotary control valve of mechanical operation crane

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as Figure 1 to Figure 5 As shown, the icon numbers are explained as follows: valve body 1, threaded hole 11, damping 2, oil inlet K, oil return port T, output oil port Y, first control oil port P, second control oil port PT, hydraulic changer Directional valve YHF, electromagnetic reversing valve DHF, shuttle valve SF, one-way valve DF, adjustable flow valve NF.

[0024] In the embodiment of the present invention, the electro-hydraulic and double-operated rotary control valve of the mechanically operated crane includes a valve body 1 equipped with a hydraulic reversing valve YHF, a shuttle valve SF, an electromagnetic reversing valve DHF, a one-way Valve DF and adjustable flow valve NF, valve body 1 is provided with oil inlet K, oil return port T and output oil port Y, oil inlet K is connected with the pressure ports of hydraulic...

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Abstract

The invention discloses an upper structure electro-hydraulic rotary control valve of a mechanical operation crane, which comprises a valve body, wherein the valve body is provided with a hydraulic reversing valve, a shuttle valve, an electromagnetic reversing valve, a one-way valve and an adjustable flow valve in a matching way, an oil inlet opening, an oil return opening and an oil output opening are arranged on the valve body, the oil inlet opening is communicated with pressure openings of the hydraulic reversing valve and the electromagnetic reversing valve, the oil return opening is communicated with oil return openings of the hydraulic reversing valve and the electromagnetic reversing valve, oil outlet openings of the hydraulic reversing valve and the electromagnetic reversing valve are respectively communicated with two oil inlet openings of the shuttle valve, an oil outlet opening of the shuttle valve is communicated with the oil output opening through the one-way valve and the adjustable flow valve which are in parallel connection, and all of the hydraulic reversing valve, the shuttle valve, an adjustable damping and the one-way valve adopt insertion type structures, are respectively inserted and arranged in the valve body, and are highly integrated. The invention has the advantages of simple structure, low manufacture cost, small size of the valve body, high atomization degree, shortened flow passage and convenient maintenance.

Description

technical field [0001] The invention relates to the technical field of vehicle hydraulic valves, in particular to a vehicle-mounted electro-hydraulic and concurrently operated rotary control valve for a mechanically operated crane. Background technique [0002] The hydraulic valves suitable for slewing control on truck cranes are classified according to the operating methods, including manual operating methods, electro-hydraulic control methods, etc., which can be selected according to different operating performances; for manual operating methods, the operating strength is higher and automation The level is relatively poor, so the more advanced truck cranes are no longer used; for the latter's electro-hydraulic control method, because it realizes the organic combination of electricity and hydraulics, the entire control system can achieve automatic operation, and the control of the system Sensitivity has also been greatly improved. [0003] Or use the pedal control method t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02
Inventor 卢宇李新邹泉敏刘富良刘峰
Owner 卢宇
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