Composite rock breaking knife tooth for dredge boat
A composite, dredger technology, applied in the direction of earth mover/shovel, construction, etc., can solve the problems of increasing the working strength of construction workers, poor wear resistance of rock digging teeth, no economic benefits, etc., and achieve impact resistance. The effect of good strength, improved wear resistance and improved life
Inactive Publication Date: 2013-06-12
CCCC TIANJIN ECO ENVIRONMENTAL PROTECTION DESIGN & RES INST CO LTD
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Many dredging companies have also found the problem of poor wear resistance of rock digging cutter teeth in production. In order to increase the service life of the cutter teeth, they surfacing wear-resistant materials on the surface of the cutter teeth. Although this can increase the service life of the cutter teeth, but There are technical problems such as labor and trouble, increasing the work intensity of construction personnel, and not having much economic benefit
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0026] A compound rock-breaking cutter tooth for a dredger, comprising a cutter tooth matrix 1 and a hard alloy body 2, the knife tooth matrix 1 having a hole 3 at the tip of the tooth matrix, and the cemented carbide body 2 embedded in the tooth tip opening of the knife tooth matrix 1 In the hole, the cemented carbide body 2 and the cutter tooth matrix 1 are rock-breaking cutter teeth with a composite structure.
[0027] The shape of the opening 3 at the tooth tip of the knife tooth parent body 1 can be circular, and the cross-sectional area of the circular hole is 0.2-15cm 2 , the cemented carbide body 2 is rod-shaped, the cross-sectional shape is circular, and the cross-sectional area of the cemented carbide body 2 is 0.2-15cm 2 .
[0028] The hardness of cutter tooth matrix 1 is HRC10-55, and the impact toughness is 10-50J / cm 2 . The hardness of the cemented carbide body 2 is HRC50-100, and the impact toughness is 1.0-10J / cm 2 .
[0029] The specific structure and...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| area | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
| hardness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to a combined rock breaking knife tooth for a dredge boat and belongs to the technical field of dredging. The combined rock breaking knife tooth for the dredge boat is characterized by comprising a knife tooth mother body (1) and a hard alloy body (2), wherein a hole (3) is formed in the tooth tip of the knife tooth mother body (1); the hard alloy body (2) is inlaid in the hole of the tooth tip of the knife tooth mother body (1); and the hard alloy body (2) and the knife tooth mother body (1) form the rock breaking knife tooth with composited structures. The combined rock breaking knife gear has the advantages of simple structure, high abrasive resistance, high shock strength, uneasiness in breaking during rock breaking of the knife tooth, long service life, high production efficiency of construction, capability of improving the rock breaking ability greatly and the like.
Description
technical field [0001] The invention belongs to the technical field of dredging, in particular to a composite rock-breaking cutter tooth for a dredger. Background technique [0002] At present, the tonnage of ocean-going cargo ships is getting bigger and bigger, and the draft is getting deeper and deeper. It is required to dig deeper and deeper, and the excavation soil is getting harder and harder, from the original silt and clay to strongly weathered rock or even moderately weathered rock. Once encountering hard rock during the construction process, the teeth of the dredger will be severely worn and broken, and the progress of the project will be slow, resulting in the failure to guarantee the construction period and causing huge economic losses. [0003] Tooth manufacturers (such as Vosta, Esco, etc.) try to develop good wear-resistant teeth. Most of them use alloy steel to increase the hardness of the material, which improves the wear resistance, but the increase in hardn...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/28
Inventor 李瑞祥刘俸麟林森苏召斌
Owner CCCC TIANJIN ECO ENVIRONMENTAL PROTECTION DESIGN & RES INST CO LTD