Bucket tooth used for high-frequency breaking hammer

Abstract

The invention discloses a bucket tooth used for a high-frequency breaking hammer. The bucket tooth comprises a tooth base, a tooth body and a connecting piece used for connecting the tooth base with the tooth body. The tooth base is provided with an insertion part which can be inserted into the tooth body. The insertion part is in a plate shape and is provided with two plate surfaces and two oblique bearing surfaces, wherein the two plate surfaces are parallel to each other, and an included angle alpha is formed between the two oblique bearing surfaces. The junction of the two oblique bearing surfaces transits smoothly. The tooth body is provided with an inner cavity used for the insertion part of the tooth base to be inserted therein. The shape of the inner cavity is matched with the outer contour of the insertion part. The insertion part of the tooth base is inserted into the inner cavity of the tooth body, and the tooth base and the tooth body are fixed through the connecting piece. By the adoption of the bucket tooth used for the high-frequency breaking hammer, the defects of a traditional bucket tooth are overcome, and the bucket tooth has the advantages that mounting and dismounting are convenient, replacement is easy, and the breaking efficiency is high.

Description

technical field [0001] The invention relates to an engineering machine used for crushing operations, in particular to a bucket tooth used for a high-frequency breaking hammer. Background technique [0002] The high-frequency breaker is a new type of construction machinery used for crushing operations. It can replace the hydraulic piston breaker and can perform underwater crushing operations without modification. It is suitable for various mines, quarries, and tunnel construction. , foundation breaking, building demolition, and working sites such as beaches, ditches, rivers, and wetlands, it has significant advantages in rock conditions such as sandstone, weathered rock, some limestone, and karst landform structures. [0003] The high-frequency breaker is usually composed of a shell, an excitation box, upper and lower connecting rods, a frame, bucket teeth and other parts. The hydraulic system of the excavator provides hydraulic energy to drive the hydraulic motor, and drives...

AI Technical Summary

Problems solved by technology

Such a structure makes the tooth seat and the inner cavity of the tooth not fit well, and it is easy to produce a gap. When the high-frequency breaking hammer hits the rock, there will be a relative displacement between the tooth body and the tooth seat, which will easily cause cracks in the defective welding place and thus damage the bucket teeth, etc.

Moreover, when working in the field, there is no power supply in many places, so it is very inconvenient to repair the bucket teeth

[0007] In bucket teeth using wedge-shaped pins, the tooth seat is generally symmetrically wedge-shaped. The rear end opposite to the working end of the tooth body is provided with a wedge-shaped hole matching the wedge-shaped part. A wedge-shaped through hole is provided in the middle of the tooth seat. By setting the wedge-shaped pin Put the screw through the wedge-shaped through hole to fix the tooth body and the tooth seat. Because the contact area between the tooth seat and the tooth body is very limited when this type of bucket tooth is in use, the tooth seat is prone to displacement during the crushing operation, and Its stressed parts are mainly concentrated on the connecting parts (that is, wedge pins and screws), which may easily cause damage or even breakage of the connecting parts and tooth seats. In addition, the resulting buffer will cause energy loss and reduce the crushing efficiency. After use, due to the tooth There are many body consumables, and the overall repair of the worn tooth body will take a long time and cost a lot

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