Crusher gear static pressure bearing mechanism

Abstract

The invention discloses a crusher gear static pressure bearing mechanism which comprises a static pressure bearing ring. The static pressure bearing ring is of an annular shape, the inner hole of the static pressure bearing ring is in a stepped shape, and dowel holes are formed in the stepped face of the inner hole in the circumferential direction. An annular oil storage tank is formed in the end face of a small hole diameter end of the static pressure bearing ring in the circumferential direction, the end face of the small hole diameter end of the static pressure bearing ring is divided into an inner ring face and an outer ring face through the annular oil storage tank, and a plurality of radial oil discharging tanks communicated with the annular oil storage tank are uniformly distributed in the inner ring face and the outer ring face in the circumferential direction respectively. According to the crusher gear static pressure bearing mechanism, the operating principle of hydrostatic static pressure bearing is utilized, namely a continuous and stable fluid pressure source is directly injected into a bearing face at the lower end of the static pressure bearing, fluid with definite pressure is supplied between friction surfaces, loads are borne with the help of static pressure of the fluid, gluing and fast abrasion of a bevel gear static pressure bearing piece and a backup washer are effectively prevented, and thus stability and reliability of transmission of a bevel gear are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of hydraulic cone crushers and hydraulic gyratory crushers, and in particular relates to a crusher gear static pressure support mechanism. Background technique [0002] As we all know, in large-scale hydraulic cone (gyratory) crushers, the spiral bevel gear (hereinafter referred to as the bevel gear) is an important transmission mechanism for the crushing force of the crusher. Gluing or rapid wear due to friction often requires a structure with a large load-bearing capacity and low friction to adapt to the dynamic load and large load conditions of the broken parts. The static pressure support of the crusher is an important supporting mechanism of the bevel gear. The traditional static pressure support is fixed on the lower end surface of the bevel gear through the trapezoidal joint surface with a boss near the inner ring area on the upper end surface and several cylindrical pins. Lubricating oil is injected...

AI Technical Summary

Problems solved by technology

Due to the long oil supply route and wide lubrication range of this oil supply lubrication method, when the lubricating oil reaches the static pressure support area of ​​the bevel gear, the oil supply quantity and oil supply pressure are often unstable. Once the crusher suddenly bears a large impact load, the mechanism will The vibration absorption ability is poor, and the large and small gears and supporting parts cannot be well protected, and the wearing of the supporting parts is accelerated, and in severe cases, it is easy to cause the phenomenon of burning tiles and shutting down

Although an annular oil storage tank and an oil discharge tank are provided on the lower end of the support, it is still unable to provide stable and long-lasting oil film protection due to the influence of the hydraulic oil supply method

At the same time, the static pressure support adopts the trapezoidal joint surface and several cylindrical pins to fix it, which also brings certain difficulties in processing and installation, and the practicability and economy are poor.

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