Variable structure adaptive feed type rope saw

Abstract

The invention mainly aims to provide a variable structure adaptive feed type rope saw for cutting composite pipes with different diameters amphibiously. The rope saw consists of a clamping mechanism, a cutting mechanism, a feeding mechanism and a tensioning mechanism; the clamping mechanism comprises a V-shaped plate, the V-shaped plate is formed by folding two mutually independent half plates, each half plate is connected with respective sliding block, and the sliding block and a guide rail I form a sliding pair; the two half plates fixed on respective sliding blocks can move relatively in the radial direction along the guide rail I; the half plates are connected with a hydraulic cylinder respectively, and the hydraulic cylinder is connected with a control system; and the lower ends of the half plates are connected with clamping claws through fixing pins, and the rear ends of the clamping claws are connected with the hydraulic cylinder. The rope saw is suitable for the pipes with diameters of phi 300 to phi 1,500 millimeters, so the diameter range of the cut pipes is greatly expanded; and meanwhile, different cutting speeds can be automatically adjusted according to different cutting states to adapt the rope saw, and the cutting efficiency is improved.

Description

Technical field: [0001] The invention relates to a wire saw machine which can perform cutting operations both on land and underwater. Background technique: [0002] With the development and utilization of the world's marine resources, the research on underwater operation technology and equipment is becoming more and more important. Among them, the submarine pipeline is the main maintenance facility in the process of offshore oil and gas field development, production and oil and gas transportation, and pipeline transportation has become the most important, fastest, most economical and most reliable way in oil and gas transportation. However, with the increase of the service life of the submarine pipeline, due to various reasons such as the harsh working environment, the phenomenon of damage to the submarine pipeline continues to occur. The submarine pipeline is usually a composite pipeline composed of reinforced concrete, polyethylene, grease, foam, asbestos, steel pipe and ...

AI Technical Summary

Problems solved by technology

From the diamond wire saw machine products developed at home and abroad, different pipe diameters correspond to different wire saw machines, that is, the wire saw machine series. A wire saw machine with a specification can only cut a fixed range of pipes. Therefore, for The adaptability of the processing object is not strong, which increases the cost of equipment manufacturing

[0008] Chinese patent application (publication number CN101444921A) discloses an underwater wire saw cutting machine, which adopts a triangular fixed feed mechanism. Although the structural arrangement of the three wheels is simple in structure and stable in operation, it largely limits the diameter range

In addition, the clamping device of this patent cannot adjust the clamping space, so it cannot be universally used for pipes of different diameters, thus limiting its scope of application

[0009] Chinese patent application number 200710303952.0 (publication number CN101468440A) discloses a clamping device of an underwater diamond wire saw machine. diameter pipes, and cannot be used for small diameter pipes at the same time, so there is also the problem of narrow use range

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