Opening and closing device of cone crusher

Abstract

The invention relates to a cone crusher opening and closing device, and relates to the technical field of cone crushers, the cone crusher opening and closing device comprises a fixed cone and a movable cone, and further comprises an adjusting ring, a locking nut and a supporting sleeve, the locking nut, the supporting sleeve and a rack are coaxially arranged from top to bottom, the fixed cone is installed on the inner wall of the adjusting ring, the adjusting ring is provided with an external thread, and the supporting sleeve is sleeved with the external thread. The supporting sleeve and the locking nut are both in threaded connection with the adjusting ring, a plurality of hydraulic pushing cylinders are fixed to the supporting sleeve, the hydraulic pushing cylinders comprise the first hydraulic pushing cylinders, piston rods of the two first hydraulic pushing cylinders are oppositely and parallelly arranged, and the first hydraulic pushing cylinders are located at the two ends of the circumferential diameter of the supporting sleeve; and an included angle is formed between a piston rod of the first hydraulic pushing cylinder and the circumferential diameter. The hydraulic pushing cylinder does not need to be in a working state for a long time, and then the damage rate of the hydraulic pushing cylinder is reduced.

Description

technical field [0001] The invention relates to the field of a cone crusher, in particular to an opening and closing device for a cone crusher. Background technique [0002] Cone crushers are widely used in the crushing links of various mines and sand and gravel production lines, and can be divided into various types such as medium crushing and fine crushing. The cone crusher is equipped with a fixed cone and a movable cone. The movable cone performs a swinging motion during the crushing process. The movable cone and the fixed cone sometimes approach and sometimes deviate. The material is discharged from the lower part. [0003] refer to image 3 , in order to ensure the height of the adjustment ring is fixed, the original cone crusher adopts the method that after the lock nut support sleeve is screwed into the adjustment ring to a certain height, the hydraulic cylinder inside the support sleeve lifts the lock nut, and the upper and lower support of the thread Tighten to r...

AI Technical Summary

Problems solved by technology

[0003] refer to image 3 , in order to ensure the height of the adjustment ring is fixed, the original cone crusher adopts the method that after the lock nut support sleeve is screwed into the adjustment ring to a certain height, the hydraulic cylinder inside the support sleeve lifts the lock nut, and the upper and lower support of the thread Tighten to realize the fixation of the adjusting ring. During the whole crushing process, the hydraulic cylinder must be kept in a high-pressure working state. The hydraulic cylinder is constantly subjected to the crushing force of the cone crusher while maintaining high pressure. The seals in the hydraulic cylinder are particularly easy to wear , leading to oil leakage of the hydraulic cylinder, which makes the adjustment ring loose, and cannot guarantee the product grain shape expected by the customer

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