CN201924395U

CN201924395U - Convex hull-shaped surface flat reamer cutter tooth

Info

Publication number: CN201924395U
Application number: CN2011200131796U
Authority: CN
Inventors: 唐亚鸣; 任晓敏; 刘飞; 张晓�; 莫静玲
Original assignee: Changzhou Campus of Hohai University
Current assignee: Changzhou Campus of Hohai University
Priority date: 2011-01-17
Filing date: 2011-01-17
Publication date: 2011-08-10
Anticipated expiration: 2021-01-17

Abstract

The utility model discloses a dredge cutter-suction type convex hull-shaped surface flat reamer cutter tooth, which is used for cutting special viscous silt. Bulge-shaped convex hull-shaped units are distributed on the surface of the flat cutter tooth, are in a spherical crown shape and have the height being 1.5mm to 30mm and the bottom circle diameter being 3mm to 60mm, the sum of the bottom circle area in the spherical crown shape accounts for 30 percent to 50 percent of the area of the flat cutter tooth, and a gap between the cutter tooth and the silt which the cutter tooth is used for cutting the silt can be increased through the convex hull-shaped units arranged on the cutter tooth surface, so water can be fast supplemented to the cutting gap for entering the cut silt, the negative pressure is reduced, the adhesion and cutting resistance of the soil on the cutter tooth is reduced, the design is reasonable, the structure is simple, and the operation is convenient.

Description

The flat reamer cutter tooth in a kind of convex closure shape surface

Technical field

The utility model relates to a kind of dredging strand suction formula that is used to cut specified viscosity silt reamer of dredging, and relates in particular to the dredge flat reamer knife-tooth structure of reamer of strand suction formula.

Background technology

Flat reamer cutter tooth is the strand suction formula native position of cutting of reamer of dredging, and also is the dredge vitals of reamer of strand suction formula.At present, flat reamer cutter tooth commonly used is when cutting silt, and cutter tooth directly cuts silt, and shipwreck forms negative pressure to add to the cutting position rapidly, can increase cutting resistance, also increases the adhesion of soil to cutter tooth.

Summary of the invention

The purpose of this utility model aims to provide a kind of flat reamer cutter tooth in convex closure shape surface that the resistance effect falls in visbreaking that has.

To achieve these goals, the technical solution adopted in the utility model is: comprise flat cutter tooth, the surface distributed of flat cutter tooth has the convex closure shape unit of overshooting shape, and convex closure shape unit is the spherical crown shape, and it highly is 1.5mm-30mm, and end circular diameter is 3mm-60mm; The end area of a circle summation of spherical crown shape is 30%-50% of a flat cutter tooth area.

The beneficial effects of the utility model are:

The gap of cutter tooth and silt when 1, the convex closure shape unit that has, cutter tooth surface can increase cutter tooth cutting silt makes water can add to cutting gap rapidly entering the earth of cutting, thereby reduces negative pressure, reduces adhesion and the cutting resistance of soil to cutter tooth.

2, convex closure shape unit can also can be laid according to the ranks proper alignment at random on the cutter tooth surface, and is reasonable in design, simple in structure, easy to operate.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;

Fig. 1 is a front view of the present utility model;

Fig. 2 is the profile enlarged drawing of convex closure shape unit 2 among Fig. 1.

The specific embodiment

Referring to Fig. 1 and 2, the utility model comprises flat cutter tooth 1 and convex closure shape unit 2, and the convex closure shape unit 2 of overshooting shape is distributed in the surface of flat cutter tooth 1.Flat cutter tooth 1 is the same with the material and the size of common cutter tooth, the material of convex closure shape unit 2 and flat cutter tooth 1 consistent or employing high-abrasive material, convex closure shape unit 2 is part spherical crown shapes of spherosome, and the height H of spherical crown shape is 1.5mm-30mm, and the end circular diameter D of spherical crown shape is 3mm-60mm.The density that convex closure shape unit 2 distributes is: the end area of a circle summation of spherical crown shape accounts for 30%-50% of flat cutter tooth 1 area.The end of convex closure shape unit 2 circle is that face contacts with the surface of flat cutter tooth 1, convex closure shape unit 2 can rule cloth on the surface of flat cutter tooth 1 if laying at random.

Claims

1. the flat reamer cutter tooth in convex closure shape surface, comprise flat cutter tooth (1), it is characterized in that: the surface distributed of flat cutter tooth (1) has the convex closure shape unit (2) of overshooting shape, and convex closure shape unit (2) is the spherical crown shape, it highly is 1.5mm-30mm, and end circular diameter is 3mm-60mm; The end area of a circle summation of spherical crown shape is 30%-50% of flat cutter tooth (a 1) area.

2. the flat reamer cutter tooth in a kind of convex closure shape surface according to claim 1, it is characterized in that: convex closure shape unit (2) is rule cloth on the surface of flat cutter tooth (1) if lay at random.