Abrasion compensation mechanism for jaw crusher

Abstract

The invention discloses an abrasion compensation mechanism for a jaw crusher. The mechanism comprises a rack, a fixed jaw toothed plate and a movable jaw toothed plate arranged opposite to the fixed jaw toothed plate, the fixed jaw toothed plate comprises an upper fixed toothed plate fixed to the rack and a lower adjustable toothed plate located below the upper fixed toothed plate, the lower adjustable toothed plate comprises a toothed block holder fixed on the rack and a plurality of toothed blocks, guide grooves with the same number as the toothed blocks are formed in the toothed block holder, the toothed blocks are connected in the guide grooves in a sliding manner, and one end of each toothed block protrudes out of the surface, facing one side of the movable jaw toothed plate, of the toothed block holder. A pushing device for driving the toothed blocks to move is arranged on the rack. A positioning mechanism is arranged between the toothed block holder and the toothed blocks. The toothed blocks are made of manganese steel. According to the mechanism, the abraded part at the lower end of the fixed jaw toothed plate can be compensated, the problem that crushing teeth at the lower end of a conventional fixed jaw toothed plate cannot be continuously used after being abraded seriously is effectively solved, and the service life of the fixed jaw toothed plate is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of jaw crushers, in particular to a wear compensation mechanism for jaw crushers. Background technique [0002] Jaw crushers are widely used in mining smelting, building materials and chemical industries. The existing jaw crusher includes a frame, a fixed jaw tooth plate, and a movable jaw tooth plate opposite to the fixed jaw tooth plate. There is a "V"-shaped layout between the fixed tooth plate and the movable tooth plate to form a crushing cavity, and a narrow discharge port is formed between the lower end of the fixed tooth plate and the movable tooth plate, and the fixed tooth plate and the movable tooth There are strip-shaped crushing teeth on each plate, and the movable tooth plate is driven by the crusher driver to form a relative motion with the fixed tooth plate to generate crushing force. When the jaw crusher is actually used, it mainly relies on the lower part of the fixed jaw tooth plate and ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that when the existing jaw crusher is in use, the crushing teeth at the lower end of the fixed jaw tooth plate are worn out during use because the stone is broken mainly by the lower end of the fixed jaw tooth plate and the movable jaw tooth plate. The most serious thing is that once the crushing teeth at the lower end of the fixed jaw tooth plate are worn to a certain extent, the fixed jaw tooth plate cannot achieve a good crushing effect, so the fixed jaw tooth plate can only be replaced as a whole. The tooth plate of the fixed jaw needs to be replaced after a period of use, and the service life of the tooth plate of the fixed jaw is low. A wear compensation mechanism for jaw crushers is provided, which can effectively solve the above problems

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