Direct pressure type jaw crusher

Abstract

The invention discloses a direct pressure type jaw crusher. The direct pressure type jaw crusher comprises a fixed jaw body and a movable jaw body, wherein a crushing cavity is formed in the oppositesurfaces of the movable jaw body and the fixed jaw body; the inclination angle of a formed V-shaped clearance is used for stone crushing; a limiting device is arranged between the movable jaw body anda machine body; the back end of the movable jaw body is mounted on an eccentric shaft driven by a power device through a bearing; and under driving of the power device, the eccentric shaft can rotateto drive the movable jaw body to perform reciprocating motion under limiting of the limiting device relative to the fixed jaw body, and at the same time, stone entering the crushing cavity can be extruded for multiple times through change of the V-shaped clearance, and crushed stone is discharged outside the crushing cavity. Through adoption of the direct pressure type jaw crusher, advantages ofcompound pendulum and simple pendulum jaw crushers are maintained, the size is smaller, yield is larger, abrasion is lower, the crusher is more energy-saving, crushing capacity is higher, quality is better, the crusher has the advantages that specification selectivity of a crushed product is higher and the product ratio is higher, and the application range is expanded.

Description

technical field [0001] The invention relates to a crushing sand making equipment, in particular to a direct pressure jaw crusher. Background technique [0002] In stone production, crushers are usually used for stone crushing. There are many types of crushers. Commonly used are compound pendulum crushers and simple pendulum jaw crushers. Although these crushers can achieve the purpose of crushing, but due to structural design There are also various problems, such as the upper end of the mobile jaw plate of the compound pendulum jaw crusher is in a circular motion, and the lower end is in an elliptical motion under the action of the toggle plate, and the stone is squeezed between the jaw plates at the same time. Rubbing friction is also formed, and the friction formed under huge pressure greatly wears the jaw plate, resulting in rapid wear of the jaw plate; in addition, some stones are powdered under the action of rubbing and friction, which increases the powder content in th...

AI Technical Summary

Problems solved by technology

[0002] In stone production, crushers are usually used for stone crushing. There are many types of crushers. Commonly used are compound pendulum crushers and simple pendulum jaw crushers. Although these crushers can achieve the purpose of crushing, but due to structural design There are also various problems, such as the upper end of the mobile jaw plate of the compound pendulum jaw crusher is in a circular motion, and the lower end is in an elliptical motion under the action of the toggle plate, and the stone is squeezed between the jaw plates at the same time. Rubbing friction is also formed, and the friction formed under huge pressure greatly wears the jaw plate, resulting in rapid wear of the jaw plate; in addition, some stones are powdered under the action of rubbing and friction, which increases the powder content in the finished product. Flour is not the desired product during processing, and there is a waste of raw materials

For example, if the powder content in the stone material exceeds the standard, it is necessary to select the powder, and in the production process, it is necessary to increase equipment to increase investment, waste resources, waste powder discharge treatment, and increase production costs; another example is the simple pendulum jaw crusher. The movable jaw is suspended at the upper end and swings at the lower end, and the crushing capacity gradually increases from top to bottom, so the crushing capacity at the upper end is poor; in addition, the working force point of the simple pendulum jaw crusher is at the lower end of the movable jaw, and the mechanism is more complicated. The model is larger and the manufacturing cost is higher. Because the mechanism is more complicated, the reliability is not high, and the story points also increase, so it is not widely used

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