CN205329758U - Tool bit for excavator - Google Patents

Abstract

A cutter head for an excavator, which includes a shovel-shaped bucket tooth body, the front end of the shovel-shaped bucket tooth body has a tapered tip embedded with a whole piece or multiple pieces of cemented carbide arranged side by side; There is a tapered assembly groove, and an assembly through hole is opened horizontally in the assembly groove; at least one of the upper and lower shovel-shaped surfaces of the shovel-shaped bucket tooth body is a concave large arc surface, and intersects at the front end , a plurality of inlaid holes perpendicular to the end face are adjacently arranged at the front end, and welded columnar cemented carbide is embedded in it, and the head of the columnar cemented carbide is exposed at the front end and formed as an up and down slope The tip part; it has the characteristics of simple structure, convenient use, can significantly reduce the cost of use, improve work efficiency, and prolong the working life of the excavator.

Description

Excavator cutter head

technical field

The utility model relates to a cutter head installed on an excavator for rolling and crushing soil, rocks, etc., and belongs to the technical field of excavators.

Background technique

The cutter head of the excavator mainly completes the work of rolling and smashing the soil and rocks when the excavator is working. Therefore, the hardness and wear resistance of the cutter head depend on the service life of the excavator; in view of At present, alloy materials with high hardness and strength are generally used for cutting heads, which are not only costly and difficult to manufacture, but also inconvenient to install and use; with the continuous innovation of alloy materials, how to further improve the use effect of replaceable cutting heads and reduce the The cost of use has become one of the technical contents of the current excavator industry's key development.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide an excavator cutter head which is simple in structure, easy to use, can significantly reduce the cost of use, improve work efficiency, and prolong the working life of the excavator.

The purpose of this utility model is accomplished through the following technical proposal, a cutter head for an excavator, which includes a shovel-shaped bucket tooth body, and the front end of the shovel-shaped bucket tooth body has a tapered tip embedded with a whole block or a plurality of cemented carbides arranged side by side; a tapered assembly groove is provided at the rear end, and an assembly through hole is opened transversely in the assembly groove.

As a preference: at least one of the upper and lower shovel-shaped surfaces of the shovel-shaped bucket tooth body is a concave large arc surface and intersects at the front end, and a plurality of The embedding hole is embedded with welded columnar cemented carbide, and the head of the columnar cemented carbide is exposed at the front end and forms a tip part formed by an upper and lower slope.

The present invention belongs to the improvement of the prior art. It has reasonable structure, convenient use and installation, and the use of the alloy head can improve the overall hardness and wear resistance of the cutter head, improve the service life of the excavator, and reduce the use cost of the excavator. , Improve the efficiency and effect of the excavator.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a view along the direction A of Fig. 1 .

Fig. 3 is a view taken along direction B of Fig. 1 .

detailed description

The utility model will be described in detail below in conjunction with the accompanying drawings: As shown in Figure 1-3, a kind of excavator cutter head described in the utility model includes a shovel-shaped bucket tooth body 1, and the shovel-shaped bucket The front part of the tooth body 1 is tapered and the tip part 2 is embedded with a whole or multiple pieces of cemented carbide 3 arranged side by side; the rear end is provided with a tapered assembly groove 4, and an assembly through hole is opened transversely in the assembly groove 4 5.

As shown in the figure, at least one of the upper and lower shovel-shaped surfaces 6 of the shovel-shaped bucket tooth body 1 described in the present invention is a concave large arc-shaped surface 7, and the upper and lower shovel-shaped surfaces 6 intersect at the conical shape of the front end. Tip portion 2, a plurality of inlaid holes perpendicular to the end face are adjacently arranged on the tapered tip portion 2, and welded columnar hard alloy 3 is embedded in it, and the head of columnar hard alloy 8 is exposed on the The front end is merged into the tip 8 formed by the upper and lower slopes; the tip 8 is not only hard and wear-resistant, but also has a good effect on rolling and smashing.

Claims (2)

1. an excavator cutter head, it includes a spade bucket tooth body, it is characterised in that the hard alloy that the described tapered point in spade bucket tooth body leading section is embedded with monoblock or polylith is arranged side by side；Rearward end is provided with the fitting recess of taper, and laterally offers assembling through hole in fitting recess。

2. excavator cutter head according to claim 1, it is characterized in that in the two spade surfaces up and down of described spade bucket tooth body, at least one side is the big arcwall face of indent, and intersect at leading section, it is furnished with multiple inlaid hole being perpendicular to end face at described leading section adjacent row, it is inlaid with weldering column shaped carbide alloy even in it, and the head of column shaped carbide alloy exposes to leading section the point becoming upper lower inclined plane to be formed。