RU2478432C1 - Jaw crusher with compound motion of jaw - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to crushers for container glass ware and cullet grinding. Crusher comprises stationary jaw with flat working surface and moving jaw with working surface formed by circle arc convex in motion plane. Moving jaw is articulated with drive crank and slide interacting with the bed. Working surfaces of both jaws are equipped with conical tenons. Tenons of moving jaws are arranged to get in between tenons of stationary jaw in interaction therewith. Working surfaces of jaws are coated with rubber layer of thickness equal to tenon height. Moving jaw comprise groove interacting with aforesaid slide. Crusher feed opening is covered by spring loaded flaps interacting with bed thrusts.

EFFECT: higher efficiency, uniform crushing.

1 dwg

Description

The invention relates to crushing equipment, namely to jaw crushers, and is intended for grinding glass containers and cullet.

Known crushing equipment related to jaw crushers [US Pat. 2365412, IPC ⁵¹ B02C 1/04. Jaw crusher [Text] / Yu.D. Tarasov, V.V. Gabov, R. A. Sablin, S. S. Kiselev. - No. 2008117738/03; declared 05/04/2008; publ. 08/27/2009 and others]. The jaw crusher comprises a bed, a fixed cheek and a movable cheek of a stepped form, the movable cheek in the upper part being pivotally fixed to the bed.

This crusher is made according to the scheme “with the upper swing of the cheek” and does not ensure the constancy of the size of the exit slit, that is, the uniformity of the fraction of the crushing product, therefore it cannot be used for grinding glass containers.

Closest to the proposed technical solution according to the principle of action is a crusher [Pat. 1646596 A1, IPC 5 B02C 1/02; Laboratory jaw crusher [Text] / A.N. Drovnikov, S.A. Kuznetsov, G.G. Demidenko, E.B. Kuznetsova. - No. 4440074/33; declared 04/18/1988; publ. 05/07/1991. Bull. No. 17]. It contains a fixed cheek with a rectilinear profile of the working surface and a movable cheek made with a cylindrical convex profile of the working surface, connected to a drive for moving it, which is made in the form of a mechanism for rolling a plane parallel to the profile plane of the fixed cheek with a profile cylinder and separated by a size output holes between the cheeks.

This crusher ensures the constancy of the size of the outlet slit, but even with the constancy of the size of the outlet, the pieces of cullet can have a sufficiently large area, which makes their secondary use difficult. In addition, when using this technological solution for grinding glass containers, a buoyant force arises due to an insufficient coefficient of friction between the metal cheeks.

The objective of the invention is to increase the coefficient of friction between the cheeks in order to ensure the capture of glass containers, reduce noise, as well as ensure the uniformity of crushing products not only in fraction, but also in area.

The problem is solved in that in the crusher containing the bed, a fixed cheek with a flat working surface and a movable cheek, the working surface of which is formed by an arc of a circle convex in the plane of motion, pivotally connected to the drive crank and movably connected to the slider interacting with the bed, and also a loading hole in the upper part of the crusher and a discharge hole in the lower part of the crushing chamber, conical spikes are installed on the working surfaces of the movable and stationary cheeks, comb m the spikes of the movable cheek are arranged in such a way that when interacting with the fixed cheek, they fall into the intership space of the fixed cheek, and the working surfaces of the cheeks are covered with a rubber layer with a thickness equal to the height of the stud, while the movable cheek contains a groove interacting with a slider pivotally mounted on the bed and the loading hole is blocked by spring-loaded flaps interacting with the stops of the frame.

A diagram of a jaw crusher with a complex cheek movement is shown in the drawing (FIG. 1).

The jaw crusher consists of a bed 1, on which a fixed cheek 2 is installed with a rectilinear profile of the working surface, and a movable cheek 3, the working surface of which is formed by an arc of a circle. The movable cheek, pivotally connected to the drive crank 4, through the groove 5 interacts with a swinging slider 6, pivotally mounted on the bed. On the working surfaces of the movable and stationary cheeks having a rubberized coating 7, spikes are installed 8. In the lower part of the bed under the discharge hole there is a hopper for receiving 11 crushed glass material, and in the upper part of the frame above the loading hole spring-loaded shutters 9 are mounted pivotally, interacting with stops 10.

Jaw crusher with a complex movement of the cheek works as follows.

The glass container is placed in the loading hole by overcoming the elastic resistance of the spring-loaded flaps 9, interacting with the stops 10, and enters the crushing chamber for grinding. The drive turns on. When the drive crank 4 rotates, the movable cheek 3 pivotally connected to it interacts with the swinging slider 6 through the groove 6. In this case, the movable cheek with its working surface formed by an arc of a circle rolls around the positions of the rectilinear working surface of the fixed cheek 2, similar to the principle of paperweight, while crushing glass containers placed between them. In the process of enveloping movement, the spikes 8 installed on the working surface of the movable cheek enter the spaces between the spikes of the fixed cheek, breaking and crushing the glass material into a fraction whose size is determined by the distance between the spikes of the interacting cheeks, and the rubberized coating 8 of the crushing surfaces of the cheeks reduces the noise level in the process crushing and does not allow glass containers to slip out of the crushing zone. The crushed glass material falls into the niche of the hopper for receiving crushing products 11, which is installed in the lower part of the bed, and the spring-loaded shutters 9, pivotally mounted above the loading hole, interacting with the stops 10, prevent fragments from flying out of the device.

Claims (1)

A jaw crusher with a complex movement of the cheek, containing a bed, a fixed cheek with a flat working surface and a moving cheek, the working surface of which is formed by an arc of a circle convex in the plane of motion, articulated with a drive crank and movably connected with a slider interacting with the bed, as well as a loading a hole in the upper part of the crusher and a discharge hole in the lower part of the crushing chamber, characterized in that conical spikes are installed on the working surfaces of the movable and stationary cheeks shaped, and the spikes of the movable cheek are arranged in such a way that when interacting with the fixed cheek, they fall into the intership space of the fixed cheek, and the working surfaces of the cheeks are covered with a layer of rubber equal to the height of the tenon, while the movable cheek contains a groove interacting with the slider, pivotally mounted on the bed, and the loading hole is blocked by spring-loaded flaps interacting with the stops of the bed.

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