Hauling scraper and scraper knife thereof

Abstract

The invention discloses a scraper knife which comprises a main scraper knife and an auxiliary scraper knife, wherein the main scraper knife comprises a main blade and a main fixed plate, the auxiliary scraper knife comprises an auxiliary blade and an auxiliary fixed plate, the main blade and the main fixed plate are detachably fixedly connected through a first main positioning hole and a second main positioning hole, the auxiliary blade and the auxiliary fixed plate are detachably and fixedly connected with each other through a first auxiliary positioning hole and a second auxiliary positioning hole, and at least one of numbers of the first main positioning hole, the second main positioning hole, the first auxiliary positioning hole and the second auxiliary positioning hole is set as more than one along the motion direction of the scraper knife. After the main blade or the auxiliary blade is worn, the connection with the main fixed plate or the auxiliary fixed plate can be realized through the remaining first main positioning hole, the second main positioning hole, the first auxiliary positioning hole or the second auxiliary positioning hole. The scraper knife sets the connection position between the main blade and the main fixed plate or between the auxiliary blade and the auxiliary fixed plate as more than one, so that the main blade or the auxiliary blade after wear can be continuously used after the connection positions are replaced, and the service life of the scraper knife can be prolonged.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a blade with long service life. The invention also relates to a scraper with the above blade. Background technique [0002] With the rapid development of my country's economic construction, there are more and more types of construction machinery used for infrastructure construction, including scrapers with predetermined power sources. A scraper is a construction machine used for digging, moving, and unloading. [0003] The blade is the shoveling and loosening device of the scraper, and it is one of the more important parts of the scraper. The blade is installed at the bottom of the frame of the scraper, including the main blade and the auxiliary blade, which are arranged horizontally. During the movement, the main blade touches the ground first, and the auxiliary blade lags behind. The main blade is composed of a main blade and a main fixed plate, and the auxilia...

AI Technical Summary

Problems solved by technology

However, in order to ensure the working performance of the scraper, the main blade 11 and the auxiliary blade are usually made of imported high-strength steel plates and high wear-resistant plate materials. The cost of the material itself and the use of this material to process the main blade 11 and the auxiliary blade higher cost

Since the main blade 11 and the auxiliary blade of the above-mentioned structure need to be replaced after wear and tear, the service life is short, and the waste of material caused thereby is relatively obvious.

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