Cone crusher

Abstract

The invention discloses a cone crusher. The cone crusher comprises a machine frame, and a movable cone main shaft which is arranged in the machine frame; the lower end of the movable cone main shaft is provided with an eccentric mechanism which is in drive connection with a drive assembly; a support assembly which supports the movable cone main shaft is arranged below the eccentric mechanism; the lower part of the support assembly is provided with a hydraulic lifting system which can change the height of the support assembly; the hydraulic lifting system comprises a hydraulic cylinder which is fixed on the lower part of the machine frame and is provided with an inner cavity, and a piston which can vertically move in the inner cavity; the support assembly is arranged at the upper end of the piston; and the lower end of the hydraulic cylinder is provided with a hydraulic oil port which is externally connected with a hydraulic station and is communicated with the inner cavity. The cone crusher has a novel and unique structure, runs stably, improves the rotation speed of an eccentric bushing, and avoids rotation and galloping; and the working efficiency and yield of the cone crusher are improved, the service life of a machine is prolonged, and the using cost is reduced.

Description

[0001] The patent application for this invention is a divisional application [0002] The filing date of the original application is: September 16, 2010 [0003] The application number is: 201010288375.4 [0004] The name of the invention is: a cone crusher technical field [0005] The invention relates to mining machinery equipment, in particular to a cone crusher. Background technique [0006] Most of the traditional hydraulic cone crushers are rotary mechanisms with sliding eccentric shaft sleeves, the swing speed of the moving cone is low, and the crushing efficiency is low. For example, a name authorized by the State Intellectual Property Office of China on January 14, 2009 is called "cone crusher". The patent for invention, the authorized announcement number is CN201179454Y, the patent specification discloses a cone crusher, including a frame and a main shaft, an eccentric shaft sleeve is installed in the center of the lower part of the frame, a large conical gear is...

AI Technical Summary

Problems solved by technology

[0006] Most of the traditional hydraulic cone crushers are rotary mechanisms with sliding eccentric shaft sleeves, the swing speed of the moving cone is low, and the crushing efficiency is low. For example, a name authorized by the State Intellectual Property Office of China on January 14, 2009 is called "cone crusher". The patent for invention, the authorized announcement number is CN201179454Y, the patent specification discloses a cone crusher, including a frame and a main shaft, an eccentric shaft sleeve is installed in the center of the lower part of the frame, a large conical gear is installed on the upper part of the eccentric shaft sleeve, and the frame There is a bowl-shaped bearing frame in the middle, and the cone body is fixed on the upper end of the main shaft and sits on the bowl-shaped bearing frame. The lower end of the main shaft passes through the bowl-shaped bearing frame and is inserted into the eccentric shaft sleeve. The acetabular wall is placed inside the adjustment sleeve to form a fixed cone, and the small bevel gear meshed with the large bevel gear is connected to the motor power through the transmission shaft and coupling

The use of dry oil seal also has the following defects: the amount of wear between the eccentric bushing and the main shaft is large; if the main shaft's self-rotating speed is too low, it will cause "turning sleeves", which will accelerate the partial wear of the eccentric bushing; There is a gap, when the crusher changes from no-load to heavy-load, the eccentric bushing will be impacted by a load, which will cause the eccentric bushing to break; if the gap between the main shaft and the eccentric bushing is too small, it will cause a speeding phenomenon, that is, the main shaft Locking occurs with the eccentric shaft sleeve; the speed of the eccentric shaft sleeve is difficult to increase, and the amount of wear is large; the cost of the mechanism itself is relatively low; but if comprehensive consideration is taken into account, such as maintenance, accidents, and customers caused by parking In terms of loss, the cost is very high; the end face of the bottom support plate is a flat structure without an oil storage tank, so the friction resistance between the discs is large and the wear speed is fast

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