Independent counterweight device for crushing machine

Abstract

The invention provides an independent counterweight device for a crushing machine applied to the technical field of mining machinery. The device is of two types, namely, a semi-arc asymmetric independent counterweight device and an arc symmetric independent counterweight device. The device specifically structurally comprises an eccentric sleeve, a gearwheel, a key, a lead pig and a counterweight housing; a lead groove which is separated through a rib plate is formed in the counterweight housing along the outer circumference; a communicating opening is formed below the rib plate; the lead pig formed by casting is arranged in the lead groove and is fixed into a communicating groove by the counterweight housing through the rib plate and the communicating groove below the rib plate; the counterweight housing sleeves a large finger opening below the eccentric sleeve and is fixed to limit relative rotation of the housing through the key; the gearwheel which sleeves a small finger opening below the eccentric sleeve is fixed to the eccentric sleeve through interference fit and presses the counterweight housing. According to the independent counterweight device for the crushing machine, the gearwheel does not bear the impact load from a counterweight, so that the service life of the gearwheel can be prolonged; moreover, the mechanism is simple, the mounting is convenient, and the mounting and overhaul intensity can be reduced.

Description

technical field [0001] The invention relates to an independent counterweight device for a crusher in the technical field of mining machinery. Background technique [0002] At present, the gyratory crusher is a kind of crushing equipment, which is mainly used for crushing rocks and ores of various hardness. With the large-scale development of modern mines, aggregate companies, and construction projects, the output per unit hour of the crusher is getting higher and higher, and the crusher is gradually developing into a large-scale one. The structure of the crusher is more complex and the volume is larger. The unbalanced force and unbalanced moment generated by the movement are getting bigger and bigger (hereinafter collectively referred to as disturbance force), the requirements for the foundation matching the crusher are getting higher and higher, and the cost of civil engineering is getting higher and higher. In order to reduce civil construction costs and apply large crush...

AI Technical Summary

Problems solved by technology

The structure in which the counterweight is fixed on the large gear with bolts has disadvantages such as low reliability of the bolt fixing method, easy fall off, and influence on the strength of the large gear; the integrated structure of the counterweight and the eccentric sleeve requires high casting precision, high casting cost, and poor precision control

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