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Reamer tooth for cutter suction dredger

A cutter suction dredger and reamer tooth technology, which is applied to mechanically driven excavators/dredgers, etc., can solve the problems of poor wear resistance of reamer teeth, easy breakage and service life, etc. The effect of preventing breakage and reasonable arrangement

Active Publication Date: 2012-03-14
HARBIN GUANGHAN POWER TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor wear resistance, easy breakage and short service life of the existing cutter teeth, and further provide a cutter teeth for cutter suction dredgers

Method used

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  • Reamer tooth for cutter suction dredger
  • Reamer tooth for cutter suction dredger
  • Reamer tooth for cutter suction dredger

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0008] Specific implementation mode one: combine Figure 1 ~ Figure 3 To illustrate this embodiment, a cutter tooth for a cutter suction dredger in this embodiment includes a tooth tip 1 and a tooth shank 2, the tooth tip 1 and the tooth shank 2 are integrated, and the rear side of the tooth shank 2 The first groove 2-1 and the tooth lug 2-2 matched with the tooth seat are arranged on the top, the top thickness h of the tooth tip 1 of the reamer tooth is 17mm-19mm, and the grinding surface 3 of the tooth tip 1 is a plane , the angle α between the grinding surface 3 and the center line of the tooth shank 2 is 5°~10°, the end surface of the reamer tooth opposite to the grinding surface 3 is the back side 4, the back side 4 and the tooth shank 2 The center line is parallel, and the angle β between the end surface 1-1 of the tooth tip 1 adjacent to the back side 4 and the center line of the tooth shank 2 is 29° to 31°, and the upper side of the back side 4 and the tooth shank 2 T...

specific Embodiment approach 2

[0009] Specific implementation mode two: combination image 3 To illustrate this embodiment, the reamer teeth described in this embodiment also include reinforcing ribs 6, which are vertically arranged on the bearing surface 5 along the centerline direction of the tooth shank 2, and the reinforcing ribs 6, tooth tips 1 and teeth Handle 2 is made into one. With such arrangement, the material used for the load-bearing surface is reduced, the overall quality of the product is reduced, and the cost is reduced. Others are the same as in Embodiment 1.

specific Embodiment approach 3

[0010] Specific implementation mode three: combination image 3 The present embodiment will be described. The length L of the rib 6 according to the present embodiment is 316 mm to 322 mm, and the width W is 23 mm to 27 mm. Such arrangement satisfies the design requirements and actual needs, and the others are the same as the second embodiment.

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Abstract

The invention relates to a reamer tooth for a cutter suction dredger, aiming at solving the problems of poor abrasion resistance, easiness for fracture and short service life of the traditional reamer teeth. The reamer tooth comprise a tooth tip and a tooth handle, wherein the tooth tip and the tooth handle are manufactured into a whole, a first groove matched with a tooth seat and a tooth lug are arranged on a rear side face of the tooth handle, the thickness of the top end of the tooth tip of the reamer tooth is 17-19mm, a grinding surface of the tooth tip is a plane, an included angle between the grinding surface and the tooth handle is 5-10 degrees, an end face of the reamer tooth, opposite to the grinding surface, is a back side face which is parallel to a central line of the tooth handle, an included angle between an end face of the tooth tip, adjacent to the back side face, and the central line of the tooth handle is 29-31 degrees, and the back side face and the upper side faceof the tooth handle constitute a force bearing face. The reamer tooth disclosed by the invention is used for the cutter suction dredger.

Description

technical field [0001] The invention relates to a cutter tooth for a dredger. Background technique [0002] At present, the cutter suction dredger is the main equipment used in the dredging industry in my country to clean up geological conditions such as sediment, sandstone and weathered rock in the channel. Cutter teeth are the main wearing parts of cutter suction dredgers. During construction, three forms of reamer teeth, wide-toothed, straight-toothed and sharp-toothed, are often used according to different geological conditions. However, due to the poor wear resistance, easy breakage and short life of the cutter teeth, the working efficiency of the dredger has been seriously affected. [0003] It has been more than 30 years since the cutter suction dredger entered the dredging industry in China, and the service life of the cutter teeth has always been a key issue that plagues the efficiency of the dredger. Neither the cutter teeth nor the surfacing reamer teeth have ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/92
Inventor 吕成林李宏伟刘丹亚吴江平杜君梅
Owner HARBIN GUANGHAN POWER TECH DEV CO LTD