Double-geared roller crusher

Abstract

The invention discloses a double-geared roller crusher which comprises a speed reducer, a pair of crusher rolls, toothed rings and a spacer ring, wherein the toothed rings arranged on the crusher rolls are of a grouping and tooth spiral-distributing structure, namely, the toothed rings are grouped along the axial directions of the crusher rolls and are spirally distributed according to a certain angle difference, an angle different exists between the toothed rings in the same group along the axial directions of the crusher rolls, the toothed rings arranged on one crusher roll are grouped and arranged in a manner that n toothed rings form one group at intervals of one group formed by n-1 groups of toothed rings, the toothed rings arranged on the other crusher roll are grouped and arranged in a manner that n-1 toothed rings form one group at intervals of one group formed by n groups of toothed rings, and the toothed rings on the two crusher rolls are arranged in a staggering manner, so that the n-1 toothed rings in one group formed by n-1 toothed rings on one crusher roll are at corresponding intervals of n toothed rings of one group formed by the n toothed rings, corresponding to the group, so that a crusher group is formed. According to the double-geared roller crusher disclosed by the invention, peak loads of all elements on a power transmission line are greatly reduced, and the service life of key components is prolonged.

Description

technical field [0001] The invention relates to a double-toothed-roller crusher, in particular to a double-toothed-roller screening crusher with a compact structure and easy installation. Background technique [0002] As the core equipment of the mobile crushing station and semi-mobile crushing station in the semi-continuous mining process system of large open-pit mines, the double-toothed roller crusher is widely used in mines. The performance of the semi-continuous mining process system largely depends on the crusher. Therefore, the semi-continuous mining process system puts forward high requirements on the reliability, maintainability and compact structure of the crusher. [0003] The traditional tooth arrangement methods of the existing double-tooth roller screening crusher generally include non-helical tooth arrangement and helical tooth arrangement. Figure 4 In the non-helical traditional cloth tooth structure shown, a row of crushing teeth is installed on each crushi...

AI Technical Summary

Problems solved by technology

use Figure 5 When the helical tooth arrangement scheme is shown, the material, especially the material above medium hardness, is directed towards the non-driving end ( Figure 5 The trend of beating in the middle A direction), the hard material keeps beating in the crusher and is not easy to be bitten, which prevents the upper part of the material from entering the crusher and reduces the passing rate of the crusher

[0004] Moreover, the main shaft of the crusher at the driving end of the existing crusher is connected to the reducer through a coupling, so the structural size of the driving end is large, and it is not easy to arrange it on the mobile device.

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