Hydraulic flexible cable cutting knife

A flexible cable and water pressure technology, applied in fluid pressure actuators, servo motor components, metal processing, etc., can solve the problems of increased pressure loss, reduced tool efficiency, poor tool adaptability, etc., and achieve small pipeline pressure loss , improve stability and improve adaptability
CN101695839AInactive Publication Date: 2010-04-21HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2010-04-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hydraulic flexible cable cutting knife, which comprises a control valve, a seawater or fresh water hydraulic cylinder and a shear movement mechanism which are connected in order, wherein the control valve controls the hydraulic cylinder to extend and retract; the hydraulic cylinder drives the shear movement mechanism to open and close by extending and retracting so as to realize shearing; the shear movement mechanism adopts a connecting rod-slide block mechanism; a slide block guide rail is integrated with the cylinder body into a whole, which has the characteristics of compact structure and high rigidity; a reversing valve is designed to have a three-position four-way structure; a contact mode of a valve plug and a valve seat of the reversing valve adopts a floating structure; and under the action of spring pressure, the valve plug and the valve seat always contact reliably, and a clearance after abrasion can be automatically compensated so as to greatly improve the reliability and service life of a seal. The hydraulic flexible cable cutting knife takes seawater or fresh water as a working medium, has the characteristics of high efficiency, large operational depth, convenient operation and good environmental compatability, and can be widely used for underwater and land shearing operation.
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Description

technical field

[0001] The invention relates to an underwater working tool, in particular to a hydraulic flexible cable cutter. Background technique

[0002] The soft cable cutter is widely used in underwater operations. It can realize the cutting task of soft material cables such as hemp, palm, cotton, nylon, chemical fiber or copper / aluminum core cables. It is mainly used for underwater salvage, resources Underwater operations in fields such as mining and marine construction. The earliest flexible cable cutters for underwater operations were generally converted from land-use hydraulic drive tools. The hydraulic tools have high working pressure and high power density.

[0003] Although the hydraulic tools have high working pressure and high power density, due to the physical and chemical characteristics of the hydraulic oil, there are the following problems when the modified hydraulic flexible cable scissors are used for underwater operations:

[0004] 1) Hydraulic oil an...

Claims

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