Three-axis jaw crusher

Abstract

The invention belongs to the technical field of crushers, and particularly relates to a three-axis jaw crusher. The three-axis jaw crusher comprises a machine frame and a movable jaw assembly, whereina fixed jaw assembly is fixedly arranged on the machine frame, a fixed jaw plate is fixedly connected to the fixed jaw assembly, the movable jaw assembly is fixedly connected with a movable jaw platemovable relative to the fixed jaw plate, the fixed jaw plate and the movable jaw plate form a crushing and discharging cavity with a wider upper portion and a narrow lower portion, the movable jaw assembly comprises a movable jaw, a first eccentric shaft, a second eccentric shaft and a concentric shaft, wherein the first eccentric shaft and the second eccentric shaft are rotatably arranged on themachine frame, the first eccentric shaft is positioned above the second eccentric shaft and the concentric shaft, a driving device for driving the first eccentric shaft and the second eccentric shaftto rotate is arranged on the machine frame, and the movable jaw is rotationally arranged on the first eccentric shaft. The three-axis jaw crusher has the advantages that the purpose of crushing the upper and lower sections through the movable jaw is realized by increasing the impact force of the lower part of the movable jaw.

Description

technical field [0001] The invention belongs to the technical field of crushers, in particular to a three-shaft jaw crusher. Background technique [0002] Jaw crusher, commonly known as jaw crusher, is the most widely used in the market now is the compound pendulum jaw crusher, which consists of two jaw plates, the movable jaw and the fixed jaw, to form a crushing cavity, which simulates the movement of the two jaws of animals to complete material crushing Crusher for work. It is widely used in medium-sized crushing of various ores and bulk materials in mining, smelting, building materials, roads, railways, water conservancy and chemical industries. [0003] The existing jaw crushers (referring to compound pendulum jaw crushers, the same below) have a common typical structure from a mechanical point of view, that is, they all use a crank rocker mechanism (the eccentric drive shaft is a crank, and the movable jaw is a connecting rod, the toggle plate is a rocker), one side ...

AI Technical Summary

Problems solved by technology

[0004] As we all know, the crushing method of the jaw crushers currently on the market is the crank extrusion type. The power device drives the movable jaw, and the movable jaw moves up and down through the transmission wheel or eccentric shaft. When the movable jaw rises, the gap between the toggle plate and the movable jaw The included angle becomes larger, thereby pushing the movable jaw plate close to the fixed jaw plate, and at the same time the material is crushed, rubbed, and crushed multiple times; when the movable jaw moves down, the angle between the toggle plate and the movable jaw becomes smaller, and the movable jaw The plate leaves the fixed jaw plate under the action of the pull rod spring. At this time, the crushed material is discharged from the lower opening of the crushing chamber. With the continuous rotation of the power device, the crusher jaw performs periodic crushing and discharging to realize mass production. In actual work, the crushing function of jaw crushers on the market is mainly reflected in the upper and middle parts of the crushing cavity, and the lower part has no crushing function at all, and only has the function of discharging materials. Another example: "a kind of "Jaw Crusher with Double Shaft and Double Crank and Rocker Mechanism" uses the organic combination of two sets of crank and rocker mechanisms, one front and one rear, to change the mechanical structure of the lower part of the front movable jaw, changing the force from reduction to increase, so that a crusher can The equipment has the effect of secondary crushing, improves the crushing ratio, and changes the front movable jaw from a single discharge function to a dual function of crushing and discharge, but this structure needs to add a driven jaw and a set of crank rocker The mechanism can achieve the above effect, and it needs to be equipped with a spring return device

Images