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Underwater crusher

A technology of a crushing device and a crushing shaft, which is applied in the field of devices for crushing underwater sediments and mineral layers, can solve the problems of easy wear and tear of gear cutters, high replacement cost, and small collection volume, and achieves improved collection efficiency, long service life, and difficulty in wear effect

Inactive Publication Date: 2013-11-27
THE JIANGSU GENERAL FACTORY OF WATER CONSERVANCY MACHINERY
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Its disadvantage is that the device is used for cutting underwater structures, such as residual column piers, and can realize cutting at a depth lower than its bottom surface
Its disadvantages are: the gear cutter is easy to wear, and it is not suitable for crushing the hard ore layer, the replacement cost is high, and the reliability is poor
Existing spirals only have single or double heads, which has a small amount of collection and low work efficiency

Method used

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Embodiment Construction

[0018] As shown in the figure, it is an underwater crushing device, including a tool holder 8, which is provided with a mounting bracket 7, through which the device can be fixed on the hull as a whole, and the two ends of the tool holder 8 are forward Extending to form a sharp angle, in order to better cut into the sedimentary layer or ore layer at the bottom of the water, a crushing shaft is rotatably installed horizontally on the tool holder 8, and the crushing shaft is connected with a driving mechanism. A hydraulic motor 1; the crushing shaft is provided with a spiral propulsion blade, the spiral propulsion blade is a three-headed spiral blade, and the spiral propulsion blade includes a left blade 3 and a right blade 5 that rotate in opposite directions, and the left blade 3 is located on the left side of the crushing shaft. On the half side, the right blade 5 is located on the right half of the crushing shaft. There are also several picks 6 on the crushing shaft. The picks...

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Abstract

The invention discloses an underwater crusher used for crushing underwater sediments and ledges. The underwater crusher comprises cutter frames, crushing shafts are rotatably and horizontally mounted on the cutter frames and are in transmission connection with driving mechanisms, spiral propelling blades are arranged on the crushing shafts, each spiral propelling blade includes a left blade and a right blade, the rotating directions of each left blade and corresponding right blade are opposite, the left blades are positioned on the left sides of the crushing shafts, the right blades are positioned on the right sides of the crushing shafts, a plurality of cutting teeth are arranged on the crushing shafts in a spiral manner and on the back sides of the propelling faces of the spiral propelling blades, and the spiral rotating directions in which the cutting teeth are distributed are as same as the rotating directions of the spiral propelling blades where the cutting teeth are positioned. Retaining plates are arranged on the cutter frames and are wrapped on the upper portions and the rear portions of the spiral propelling blades in a semi-encircling manner, and material sucking ports are correspondingly arranged in the middles of the retaining plates and the crushing shafts. The underwater crusher can crush the underwater sediments and hard ledges rapidly, and crushed objects gather towards the material sucking ports in the middle and are sucked away; the underwater crusher is reliable in operation, not easy to wear, and long in service life.

Description

technical field [0001] The invention relates to a crushing device, in particular to a device for crushing underwater deposits and ore layers. Background technique [0002] In the Chinese patent database, there is a method and equipment for cutting underwater structures, its application number: 02806927.7; application date: 2002-03-15; publication date: 2004-09-22; publication number: CN1531616; the device disclosed An apparatus for carrying out a method of cutting an underwater structure below the seafloor, the method comprising the steps of: (a) determining an ideal plane for cutting after taking into account the characteristics of the structure; (b) positioning cutting means and anchored in the vicinity of the cut area; (c) obtaining at least one perforation or drilling in the vicinity of the structure through the bottom surface and at least to a predetermined depth to cut the structure, along a direction parallel to the cut and preferably in the plane of the cut; ( d) in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F5/30E02F5/28
Inventor 张立明王勇谭昌晶吴前锋
Owner THE JIANGSU GENERAL FACTORY OF WATER CONSERVANCY MACHINERY
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