SU820881A1 - Cone crusher - Google Patents

Description

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The invention relates to mechanical engineering, namely to eccentric crushers of fine and medium crushing, and can be widely used in the mining and metallurgical industry.

Eccentric cone crushers are widely distributed in the world as the most efficient machines. Tillers: less crushing than inertial crushers, they are, however, more reliable and convenient to maintain.

Closest to the proposed technical essence is a Koshena crusher containing an internal crushing cone placed on a spherical oxide inside an external cone, an eccentric drive sleeve of an internal crusher cone mounted on a frame having spring shock absorbers for passing indenable bodies and mounted on a foundation . Spring dampers are the connecting link of the outer cone and the bed. When the spring body passes, the springs are compressed, the outer cone is detached from the bed.

a large gap with respect to the fraction of your cone and releases an indestructible body Ci from the fraction of the crushing cavity

The disadvantage of this crusher is the low degree of crushing, due to the fact that the bed is a single casting with the body of the eccentric bushing and rigidly mounted on the foundation. The eccentric bushing deflects a fraction of your cone by a magnitude that is appropriate for its eccentricity, therefore the crushing cone does not have

5 of direct contact with the outer cone, the presence of a constant gap between the cones is necessary because of the kinematics with. water {each point of a cone describes in a plane a circle and inevitably ellipticity and non-concentricity with armor of cones, reaching a total of mm. No gap running cones with kinematic force

5 scheme is impossible, and the unbalance crusher limits the number of oscillations of the cone.

The purpose of the invention is to increase the technological parameters of the crusher,

0 (the degree of fragmentation) by ensuring the dynamic interaction of the cones during their non-constant force contact with each other.

This goal is achieved by the fact that the crusher is additionally equipped with spring-loaded shock absorbers located between the casing of the eccentric bushing and the bed, while the casing of the eccentric bushing is mounted on the foundation on elastic elements.

The drawing shows an eccentric cone crusher, a longitudinal section,

 - The crusher includes, the base 1, the outer cone 2 conjugated with it by thread and the spherical support 3 for the crushing cone 4, which is installed with its shaft in the bore of the eccentric bushing 5. In the bearings of the housing 6 of the eccentric bushing 5 the conical gear 7 is mounted and is connected to it the gear wheel 8 is engaged with the splined tail of the eccentric bushing 5. The bed 1 is connected with side spring shock absorbers 9 to the body of the b / b eccentric sleeve-5. Thus, the housing 6 is the support of the bed 1. In turn, the housing b rests on the foundation through the elastic elements 10. The gear 7 through the compensation sleeve 11 is connected to the electric motor 12.

. The device works as follows.

Before starting the crusher, the outer cone 2 is screwed into the thread of the bed 1 before the force contact with the crushing cone 4 IB of a conventional eccentric crusher, the presence of such a contact of the cones when the crusher starts, inevitably leads to an accident).

The crusher is loaded with ore under the obstruction and includes an electric motor 12, which, through a conical gear pair 7 and 8, causes the eccentric bushing 5 to rotate. The crushing cone 4 undergoes a gyratory movement on the spherical support 3 under the action of the eccentric bushing and forces the base 1 to gyrate through the outer cone 2. The ore is pushed cones into the crushing cavity and forms an interlayer in the contact zone of the cones. The bed 1 with the outer cone 2 moves by its inertia. tivophase-splitting cone 4 and the body 6 associated with it. The crushing force is the sum of the resistance of the spring shock absorbers 9 and the moment of inertia of the bed 1. The ore is crushed under the action of the crushing force

and is discharged from the void fraction, v

The crusher is dynamically balanced in space and does not transfer inertial loads to the foundation. Due to this, the machine can work with the number of oscillations of a crushing cone twice as large as in a known eccentric crusher. When an indestructible body enters the crushing cavity, the spring dampers are compressed - the cone is dispersed and the body falls into unloading. On the deviation of the bed from the nominal position limited by kinematic means, a large

5 number of swings, high fraction

the force allows to achieve a degree of crushing equal to 18-20 (versus 3-5). while maintaining performance. The offered crusher can replace a crusher of a fine crushing and a rod mill, economizing at the same time the production area, energy and labor costs.

The use of the proposed crushers in the enrichment of non-ferrous metal ores allows to obtain an economic effect of 150-200 thousand rubles. per year from every million tons of processed ore.

Claims (1)

Invention Formula A cone crusher containing an internal crushing cone placed on a spherical support inside the outer cone, an eccentric drive sleeve of the internal crusher cone mounted on a frame, and spring shock absorbers for the passage of unbreakable bodies and installed on the foundation, characterized in that,. in order to increase the degree of fragmentation by providing dynamic When the cones interact with their non-constant contact with each other, the crusher is additionally equipped with spring-loaded shock absorbers located between the housing of the eccentric bushing and the frame, while the housing of the eccentric sleeve is installed on the foundation on the elastic elements. Sources of information taken into account in the examination of 1, Yuzemnek Yu.A. and other. Cone crushers. M., Mechanical Engineering, 1970, p. 175