A device for adjusting discharge opening of a crusher and a jaw crusher

Abstract

The invention discloses a crusher discharge hole adjusting device and a jaw crusher. The crusher discharge hole adjusting device is provided with a wrist plate seat; sliding grooves are formed in the other side of the wrist plate seat; the bottoms of first sliding blocks and second sliding blocks are respectively clamped in the sliding grooves; screw rods of bolts are penetrated in through holes which are respectively formed in a bottom plate, a spring bottom plate and a spring press plate; first adjusting screw nuts and second adjusting screw nuts are arranged under the spring bottom plate and above the spring press plate, respectively; the bolts are sheathed with first springs respectively, and the two ends of the first springs respectively lean against the spring press plate and the spring bottom plate; first connecting rods and second connecting rods are arranged in a crossed way; the two ends of the first connecting rods are respectively articulated with the top ends of the first sliding blocks and the bottom plate; the two ends of the second connecting rods are respectively articulated with the top ends of the second sliding blocks and the spring bottom plate. After the crusher discharge hole adjusting device and the jaw crusher are adopted, the size of a gap of a discharge hole of the jaw crusher can be adjusted, and the effect of changing the discharging granularity of a product can be achieved; furthermore, the overload protection can be realized by adjusting the pretightening force of the springs, so that the superhard material can be discharged, and a machine is protected.

Description

Technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a crusher discharge opening adjustment device and a jaw crusher. Background technique [0002] A crusher is a device used to complete material crushing, such as a jaw crusher. Jaw crusher is commonly known as jaw crusher, also known as tiger's mouth. The crushing cavity is composed of two jaw plates, a movable jaw and a static jaw, which simulates the movement of the animal's jaws to complete the material crushing operation. Such as figure 1 , 2 As shown, the jaw crusher is mainly composed of a frame 1, a movable jaw device 2, an adjustment device 3, a tension device 4 and other components. When the machine is working, driven by the motor, the eccentric shaft in the movable jaw device rotates at a high speed to make the movable jaw reciprocate according to a predetermined trajectory, so as to enter the crushing cavity composed of the fixed jaw, the movable jaw and the s...

AI Technical Summary

Problems solved by technology

The disadvantage of the existing shim adjustment device is that the purpose of adjustment is to be achieved by increasing or decreasing the number of shims, and the picking and placing of shims requires other equipment and tools, which is time-consuming and laborious, and overload protection cannot be achieved

The disadvantage of the existing wedge adjustment device is that the wedge adjustment requires a lot of external force to realize the adjustment of the size of the discharge port, increasing the hydraulic equipment and increasing the cost

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