SU1351658A1 - Jaw crusher - Google Patents

Abstract

This invention relates to the crushing of minerals in jaw crushers. The goal is to increase the efficiency of crushing. The antiphase mobile outer cheeks (NS) and internal cheeks (VS) form two crushing chambers (CD), above which the upper NS and VShCH with two CDs between them are mounted for preparatory crushing of the original rock. The ends of the respective cheeks are pivotally connected. Four VS (upper and lower) form a closed diamond-shaped chetyrehtvalennik connected by an upper hinge with the crusher body, and the lateral - with a drive shaft, centrally mounted between the VS. Lower VS made grates. The breed is crushed in the upper CDs, then intensively crushed in the lower CDs, sifting out through the grate bars of the lower NS. 1 il. 15 (About 00 ate O5 ate 00

Description

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The invention relates to the crushing and grinding of minerals, namely, jaw crushers, and can be used in mining, chemical and other industries, in the production of building materials and secondary resources, at concentrators and crushing plants.

The purpose of the invention is to demonstrate the efficiency of crushing.

The drawing shows a schematic diagram of the proposed crusher.

In the crusher body 1, between the external crushing movable cheeks 2 and 3 with hinges 4 and actuators 5 and 6, internal movable cheeks 7 and 8 are mounted, forming two crushing chambers 9 and 10. In relation to the final product, the lower (main) cheeks 3 and 8 and chambers 10 are basic, while the crushing in chambers 9 between the upper (additional) cheeks 2 and 7 is preliminary or preparatory. The inner cheeks 7 and 8 form a closed rhombus-shaped hinge four-link with hinges 11-14 at the tops of the rhombus. The upper hinge 11 is attached to the quadruple link to the housing 1 as a pendulum, and the lateral hinges 12 and 14 are connected to the drive shaft 15, which is located in the center of the rhombus and is equipped with drive elements, such as connecting rods.

It is advisable to perform the cheeks 3 with cuspins, and their drive 6 with higher frequencies than those of the upper cheeks. Possible options with a drive from one central shaft 15 not only

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for internal, but also for external cheeks.

The work of the crusher in the most rational application for the processing of intergrowths of mica with rock consists in the fact that the adhesions previously destroyed in chambers 9, roughly crushed here twice or threefold, are more intensively crushed then in chambers 10, where the opened crystals and screenings are removed through the grates.

The proposed design of the crusher due to the two-stage crushing and the intensity of the bilateral influence on the rock contributes to an increase in the extraction and preservation of the valuable element, thereby increasing the efficiency of the crushing.

Claims (1)

Invention Formula A jaw crusher containing outer and inner crushing cheeks with two crushing chambers between them, a casing and shafts of antiphase oscillation drives of the cheeks, is characterized in that it is equipped with additional outer and inner cheeks mounted above the crushing chamber two pre-crushing chambers between them and the hinges connecting the ends of the respective cheeks, the main and additional internal cheeks forming a closed rhomboid four-ring, connected th upper hinge with the crusher body, and the side - with a centrally located drive shaft. Editor S. Lisin Composer J. Hechanov Tehred A. Kravchuk Order 5519/7. Circulation 573 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab.,. 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader L. Pilipenko