Reciprocating impact mining part of guide screw fastening impact rack of mining machine

Abstract

A reciprocating concussion mining portion for a fastening concussion frame of a guide screw of a mining machine. A screw guider (3) comprises a guide rod (3.1), a guide screw (3.2), and a guide nut (3.3). A guide piece connector (4) comprises a guide rod connecting piece (4.1). The guide rod connecting piece (4.1) is connected to the guide rod (3.1) in a box body (1). The guide rod (3.1), a tooth-punching base (5.1) and the guide rod connecting piece (4.1) are provided with guide screw penetrating holes. The guide nut (3.3) is fitted to the guide screw (3.2) to make the guide rod (3.1), the guide rod connecting piece (4.1) and the tooth-punching base (5.1) tightened from front to rear to form an integrated reciprocating concussion frame. The reciprocating concussion mining portion uses a structure connected by a guide screw to replace a multi-point connection structure formed by fitting multiple short screws to multiple ordinary nuts, so that the defect that fastening forces of multiple bolts are not balanced, fastening errors of the multiple bolts are great, and the bolts are easy to loosen and fall off; and therefore, the reciprocating concussion mining portion has a simple structure, occupies small space, is easy to dissemble, and has a long service life, thereby greatly improving the security, the reliability and the service life of the reciprocating concussion portion.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a lead screw fastening impact frame of a mining machine applicable to the field of mining or engineering machinery to reciprocate impact on the mining part. Background technique [0002] At present, most coal shearers and roadheaders are drum-type rotary milling blanking machines, and most excavators are hydraulically driven single buckets for digging and breaking materials. With the development of science and technology, reciprocating impact shearers and reciprocating impact roadheaders and Reciprocating impact excavators are collectively referred to as reciprocating impact excavators. Reciprocating impact excavators have high block rate, less dust, low energy consumption, and high mining efficiency. The punching seat of the impact head is connected with multiple short screws and multiple ordinary nuts in local multi-point connection or the end of the guide rod A, guide rod B and the pu...

AI Technical Summary

Problems solved by technology

[0002] At present, most coal shearers and roadheaders are drum-type rotary milling blanking machines, and most excavators are hydraulically driven single buckets for digging and breaking materials. With the development of science and technology, reciprocating impact shearers and reciprocating impact roadheaders and Reciprocating impact excavators are collectively referred to as reciprocating impact excavators. Reciprocating impact excavators have high block rate, less dust, low energy consumption, and high mining efficiency. The punching seat of the impact head is connected with multiple short screws and multiple ordinary nuts in local multi-point connection or the end of the guide rod A, guide rod B and the punching seat of the impact head are respectively connected with multiple short screws and a plurality of ordinary nuts. The other end of the multi-point connection and the connecting piece of the guide rod are respectively connected with multiple short screws and multiple ordinary nuts for partial multi-point connection. The structure is complex, it takes up a lot of space, it is difficult to disassemble and assemble, the tightening force of multiple bolts is uneven, and the assembly error of equipment components The accumulation is large, the tensile strength is poor, and the impact resistance and vibration resistance are poor. Due to the high impact frequency and severe vibration of the reciprocating impact head, the bolts are easy to loosen and fall off, and the bolts need to be tightened frequently, which not only affects the normal operation of the equipment but also easily causes safety. Accidents, increased maintenance volume

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