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Rake tooth with sharp ridge and curved surface

A technology of rake teeth and curved surface, which is applied in the field of rake head accessories, can solve the problems of increasing dredging costs, etc., and achieve the effect of reducing soil resistance, reducing resistance and increasing production

Active Publication Date: 2013-08-07
SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these measures will inevitably increase dredging costs

Method used

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  • Rake tooth with sharp ridge and curved surface
  • Rake tooth with sharp ridge and curved surface
  • Rake tooth with sharp ridge and curved surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] In this method, the dedendum 3 and the tooth tip 5 are cast into one body, and the rake teeth ( figure 1 ) can be made into left rake teeth ( figure 1 ) or right tine ( Figure 4 ), the left and right rake teeth are symmetrical in shape, the root of the rake teeth is basically square and conical, and the center of the conical body is made into a conical hole 2 ( figure 1 ) is used to set the tine on the tine seat ( figure 2 ); there is a hook-like body 1 ( figure 1 ), the hook-shaped body 1 is set into the transverse pin groove 6 of the tooth holder ( figure 2 ) and fasten the rake tines with pins. The cross-section of the tooth tip is a triangle with an open rear side ( image 3 ), the tip angle of the triangular section of the tooth tip is between 15° and 45°; the tooth surfaces on both sides of the tooth tip are in the shape of an arc surface, and the tooth surfaces on both sides intersect to form a tooth ridge 4 ( figure 1 ).

[0010] The rake teeth made by...

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PUM

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Abstract

The invention provides a rake tooth with a sharp ridge and a curved surface, relating to a rake head accessory of a drag suction dredger, wherein the provided rake tooth can be used for improving digging depth when a rake head is used for dredging loam and clay. In a technical scheme provided by the invention, the adopted rake tooth is formed by integrally casting a tooth root and a tooth tops; aconical hole is formed on the upper end of the tooth root; one side of the upper end of the tooth root is provided with a hook-shaped body used for assembly with a rake tooth seat keyway; the rake tooth is characterized in that the cross section of the tooth top is of a triangle shape that is opened at a backside; and the tooth surfaces of two sides of the tooth top is machined into an arc shape,and the tooth surfaces of the two sides are crossed to form a tooth ridge.

Description

technical field [0001] The invention relates to a rake head accessory, especially a rake tine, of a trailing suction dredger. Background technique [0002] The rake teeth used in the rake head of the trailing suction dredger include chisel-shaped teeth, chisel-shaped flushing teeth, and pointed teeth, and the rake teeth are embedded in the rake tooth seat of the rake head. When the existing rake teeth excavate loamy soil and clay, the problems of large excavation resistance, shallow depth of penetration, poor soil breaking effect, difficult excavation and low construction efficiency occur. The reason is that the particles of loamy soil and clay are closely bonded, have high cohesion, and high shear strength, which is not conducive to the penetration of the rake teeth into the soil, resulting in an increase in the excavation resistance of the rake teeth and increasing the difficulty of excavation. The cross-section of the traditional chisel teeth is rectangular, and the grou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F3/92E02F5/28
Inventor 周海楼启明蒋基安林风王健洪国军陈海英江帅树伟赵天彪李炜王费新
Owner SHANGHAI WATERWAY ENG DESIGN & CONSULTING CO LTD
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