Jaw crusher discharge gate adjustment mechanism

Abstract

The invention discloses a jaw crusher discharge gate adjustment mechanism. The jaw crusher discharge gate adjustment mechanism comprises two wedges and two adjustment devices. The cross section of each one of the wedges is a right triangle having an angle less than 10 degrees and an angle greater than 5 degree. The wedges are arranged in a way that inclined planes of the wedges are opposite. Each one of the adjustment devices comprises an outer-thread adjustment screw, an inner-thread adjustment screw and a fixed adjustment base. The fixed adjustment base is rotatingly connected to an inner-thread adjustment nut by a bear. The inclined planes which have an inclined degree less than 10 and produce the minimum frictional force are adopted so that movement is convenient and easy and manual operation is realized. The inclined planes realize adjustment of the maximum-size discharge gate, have self-locking effects on the wedges, and guarantee a small force in an opposite sliding direction. The adjustment devices are suitable for a special and hostile use environment of a crusher. Two ends of the bear embedded into the fixed adjustment base are provided with dust caps and check rings so that the rotation mechanism is further protected. Through the screws, discharge gate adjustment is more convenient, fast and easy.

Description

technical field [0001] The invention belongs to the field of mining machinery manufacturing, in particular to the field of design and manufacture of jaw crushers, in particular to a jaw crusher using wedges to adjust a discharge port. Background technique [0002] The adjustment of the discharge opening of the jaw crusher is often adjusted by lifting blocks. The way to realize the lifting block type is: design the lifting block as a right-angled cone type, process the right-angled surface and the inclined surface opposite to the cone-shaped frustum, the right-angled side is in contact with the back stop surface of the box, and the inclined side is fitted with the inclined surface on the adjustment seat. During processing, ensure that the bevel angles of the bevel of the adjustment seat and the bevel of the lifting block are equal. A long lead screw with T-shaped thread is housed on the lifting block, one end is installed on the lifting block, the other end passes through th...

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