Jaw breaker with tooth profile self modification breaking pair

Abstract

The invention discloses a jaw breaker with a tooth profile self modification breaking pair. The breaking pair comprises a fixed jaw board which is fixedly connected with a frame and a movable jaw board which is fixedly connected with a movable jaw; an upper end of the movable jaw is pivoted to a driving shaft, a lower end of the movable jaw is pivoted to a bracket, the driving shaft which is arranged on the frame is connected with a driving wheel, and the bracket is pivoted to the frame; the fixed jaw board and the movable jaw board are respectively provided with a substrate, the substrate isprovided with tooth bumps and tooth grooves, and the tooth bumps and the tooth grooves of the fixed jaw board and the movable jaw board of the breaking pair are arranged in a relative interlace mode;and through holes which are arranged in the tooth grooves which penetrate through the substrate are arranged in a lengthwise mode relative to the length direction of the tooth bumps on the opposite substrate. Biggest bright spots of the jaw breaker are that: the tooth grooves and the tooth bumps are alternately worn, wearing is on both of the tooth grooves and the tooth bumps simultaneously, so good tooth profiles are always kept, thereby the jaw breaker is always in an optimal state.

Description

technical field [0001] The invention relates to a jaw crusher, more specifically a jaw crusher equipped with a self-repairing tooth-shaped crushing pair. Background technique [0002] Jaw crusher, commonly known as jaw crusher, consists of a movable jaw plate and a fixed jaw plate to form a crushing cavity, which simulates the movement of the two jaws of animals to complete the material crushing operation. It is widely used in medium-sized crushing of various ores and bulk materials in mining, smelting, building materials, roads, railways, water conservancy and chemical industries. [0003] Jaw crushers currently on the market, such as a jaw crusher described in ZL02130566.8, include fixed teeth fixed on a fixed cone, movable teeth arranged opposite to the fixed teeth and freely installed through eccentric drive shafts, The movable tooth bearing part installed on the fixed cone, the connecting part connecting the lower part of the movable tooth and the movable tooth bearing...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to overcome the defects of poor crushing capacity and low production efficiency of the prior art jaw crusher due to the wear of the teeth of the jaw plate, and to provide a jaw crusher with a self-repairing tooth shape, a long service life, a simple structure and low cost. The jaw crusher with crushing pair has strong crushing capacity and high production efficiency

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