Jack anti-rotating easily-detachable reciprocating impact head of digger

Abstract

The invention relates to the field of diggers and especially relates to a jack anti-rotating easily-detachable reciprocating impact head specifically for a reciprocating impact digger. The jack anti-rotating easily-detachable reciprocating impact head comprises a reciprocating impact head device. The reciprocating impact head device comprises a reciprocating impact head. The reciprocating impact head comprises a reciprocating impact tooth, a permanent seat and a clamp spring or an elastic pin or a lock pin. The reciprocating impact tooth comprises an impact tooth and an impact tooth shoulder. The impact tooth is arranged on an impact tooth insertion column or an impact tooth jack member. The impact tooth shoulder is arranged at a lower part of the impact tooth or is arranged at the end of the impact tooth jack member. The reciprocating impact tooth and the permanent seat comprise hole-slots for arrangement of the clamp spring or the elastic pin or the lock pin. The clamp spring or the elastic pin or the lock pin is arranged in the hole-slots and goes through and connects the reciprocating impact tooth and the permanent seat. The clamp spring or the elastic pin or the lock pin bears a backward pull force produced by reciprocating impact motion. The impact tooth insertion column is inserted into a tooth base jack member or a tooth base insertion column is inserted into the impact tooth jack member. The impact tooth shoulder is tightly fastened to a tooth base shoulder so that a reciprocating impact counter-acting force can be born. A jack anti-rotating structure is fastened to a column anti-rotating structure so that reciprocating impact tooth rotation is prevented.

Description

technical field [0001] The invention relates to the field of excavation machinery, in particular to a reciprocating impact head which is specially used for anti-rotation and easy-to-detachable reciprocating impact head for jacks of reciprocating impact excavating machines. Background technique [0002] At present, the widely used picks of excavators rotate oblique cutting and milling coal walls or rock walls or hard rocks when cutting materials such as coal walls or rock walls or hard rocks. In order to prevent the picks from being damaged too quickly due to rotary inclined cutting , the pick and the material surface are continuously rotated at an angle of less than 80° to feed the knife, because the pick and the tooth seat are mostly connected in relative rotation, and the pick and the tooth seat are in clearance fit, which makes the pick cut when cutting the material The cutting force and efficiency are greatly reduced, and at the same time, the cutting teeth are seriously...

AI Technical Summary

Problems solved by technology

[0002] At present, the widely used picks of excavators rotate oblique cutting and milling coal walls or rock walls or hard rocks when cutting materials such as coal walls or rock walls or hard rocks. In order to prevent the picks from being damaged too quickly due to rotary inclined cutting , the pick and the material surface are continuously rotated at an angle of less than 80° to feed the knife, because the pick and the tooth seat are mostly connected in relative rotation, and the pick and the tooth seat are in clearance fit, which makes the pick cut when cutting the material The cutting force and efficiency are greatly reduced, and at the same time, the cutting teeth are seriously damaged, and the rate of material lumps is low, and the efficiency is low. Continuous straight-line planing of materials, the picks are continuously inserted into the material for planing and cutting without intervals, resulting in serious damage to the planing picks due to continuous heating and difficulty in cooling. In order to enhance the strength of the planing picks, the planing picks are made heavy. The large and heavy shovel teeth greatly increase the impact resistance, resulting in high cutting energy consumption and low efficiency. Because there is no reciprocating motion of the roller pick, planer pick or excavation pick, the roller pick , Planing picks or excavating picks are not equipped with structures and performances to prevent damage caused by two-way forces caused by the reciprocating motion of the picks, because the impact teeth such as roller picks, planing picks or excavating picks are connected by bolts, pins, etc. The pins or bolts are easy to fall off due to the vibration force, and the cutting impact force is easy to shear and deform the pins or bolts. After being sheared and deformed, the pins or bolts are difficult to restore to their original shape because of no self-restoring elasticity, so the picks are difficult to disassemble. , Replacement, in order to fundamentally change the continuous heating damage caused by the non-intermittent cutting method, high energy consumption, low efficiency and other defects, the cutting method is made into a reciprocating impact intermittent cutting method, in order to change the pick. There is no intermittent cutting defect, prolonging the life of the pick and improving production efficiency. The invention proposes a reciprocating impact head that is specially used for reciprocating impact mining machine jacks, anti-rotation and easy disassembly.

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