Cone crusher

Abstract

The invention discloses a cone crusher, which comprises a frame and a movable cone main shaft arranged in the frame, wherein the lower end of the movable cone main shaft is provided with an eccentric mechanism, the eccentric mechanism is in transmission connection with a transmission assembly, a supporting assembly for supporting the movable cone main shaft is arranged below the eccentric mechanism, a hydraulic lifting system for changing the height of the supporting assembly is arranged below the supporting assembly, the hydraulic lifting system comprises a hydraulic cylinder body which is fixed on the lower part of the frame and provided with a cavity and a piston which is arranged in the cavity and moves up and down, the supporting assembly is arranged at the upper end of the piston, and the lower end of the hydraulic cylinder body is provided with a hydraulic oil port which is externally connected with a hydraulic station and communicated with the cavity. The cone crusher has the advantages of novel and unique structure and stable operation, improves the rotational speed of an eccentric sleeve, improves the work efficiency and yield thereof, prolongs the service life of a machine, reduces the use cost and avoids 'teleflex' and running vehicle.

Description

technical field [0001] The invention relates to mining machinery and equipment, in particular to a cone crusher. Background technique [0002] The traditional hydraulic cone crusher is mostly a slewing mechanism with a sliding eccentric shaft sleeve. The moving cone swing speed 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 The invention patent, the authorization 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 bevel gear is installed on the upper part of the eccentric shaft sleeve, and the frame The middle part is equipped with a bowl-shaped bearing frame, 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-sh...

AI Technical Summary

Problems solved by technology

[0002] 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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