Rotary buffering valve

A technology of rotary buffer and buffer valve, which is used in fluid pressure actuating devices, servo motor components, mechanical equipment, etc., can solve the problems of inconvenient installation and use, short service life, not concise and compact enough, etc. Easy to leak oil, compact structure
CN1350126AInactive Publication Date: 2002-05-22卢永松
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
卢永松
Publication Date
2002-05-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to the turning buffer valve technology in crane, which is characterized by that in the main valve body through the installation of cavity, built-in channel and necessaryparts, the buffer valve, electromagnetic valve, adjustable backpressure valve, control valve and non-way valve are detachly combined in the main valve body to make it possess several functions of turning buffer valve in crane. Said invention possesses the advantages of reasonable compact structure, small volume and safe and convenient use, etc.
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Description

technical field

[0001] The invention relates to a slew buffer valve, in particular to the technical field of a slew buffer control valve used on the slewing mechanism of a 20-ton to 60-ton hydraulic truck crane. Background technique

[0002] According to the actual use requirements, the traditional truck crane slewing mechanism generally has the following characteristics, that is, it can be quickly started and stopped quickly; Keep the lead weight of the steel cable and the arm frame rotate precisely and synchronously, etc., so that the crane can lift the goods safely, quickly and conveniently. However, in order to realize the above-mentioned control process on cranes, standard single-function hydraulic components are still mostly used and connected with complex piping. Therefore, it usually has a relatively large structure and is not concise and compact. Hydraulic components, so the pipelines connecting them are also relatively complicated, easy to leak oil, inconvenient t...

Claims

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