Hammer crusher hammer screen gap adjusting device

Abstract

The invention discloses a hammer crusher hammer screen gap adjusting device. The device comprises a machine shell, a hammer mechanism, a box seat, a rotor assembly, pendulum hammers and a lead screw;an inner lining plate is further fixedly arranged inside the machine shell in an erecting mode, the rotor assembly is fixedly connected to the inner lining plate through bolts, the hammer mechanism isfixedly arranged on the rotor assembly, and the hammer mechanism is composed of a plurality of pendulum hammers; and the lead screw is rotationally erected and connected in the inner cavity of the bottom of the machine shell through a bearing, each of the outer ring surfaces of the two ends of the lead screw is provided with an adjusting block, the two adjusting blocks correspondingly sleeve thetwo ends of the lead screw in an threaded connection mode, the adjusting block located on the outer ring of the left end of the lead screw is connected with the bottom of the left side of a screen through a supporting connecting rod, and the adjusting block located on the outer ring of the right end of the lead screw is connected with the bottom of the right side of the screen through an another supporting connecting rod. The device is simple in structure, reasonable in design, convenient and fast in operation of adjusting the gap of the hammer screen, flexible to use and suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of hammer crushers, in particular to a hammer-screen gap adjustment device for hammer crushers. Background technique [0002] The hammer mill has the characteristics of strong crushing ability and stable operation, so it has been widely used. The pulverizer generally includes a casing, a hammer mechanism, a pair of screen inner frames and a motor. The inside of the screen is erected in the casing and a screen is installed on its outer edge. The drive can rotate in the screen to crush the materials in the screen. [0003] The currently commonly used sand and gravel hammer crushers use the impact force generated by the high-speed rotation of the hammer and the impact of the materials on the impact plate to crush the materials, and use the size of the sieve hole to control the particle size of the crushed materials. When the sieve hole is small, the number of times the material is hammered is large, and the p...

AI Technical Summary

Problems solved by technology

When the sieve hole is small, the number of times the material is hammered is large, and the particle size of the crushed material is small, but the productivity is low; when the sieve hole is large, the number of times the material is hammered is small, the particle size of the crushed material is large, and the productivity is high.

After the crusher is used for a period of time, the hammer head is gradually worn out, the gap between the hammer head and the screen plate will gradually increase, and the output will gradually decrease.

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