Integral die forged 151mm pitch pin track and scraper conveyer

Abstract

The invention relates to an integral die forged 151mm pitch pin track and a scraper conveyer and belongs to the technical field of mining scraper conveyers. The integral die forged 151mm pitch pin track comprises a main track plate, an auxiliary track plate and a plurality of pin teeth, the main track plate and the auxiliary track plate are arranged in parallel, the multiple pin teeth are arranged between the main track plate and the auxiliary track plate at equal intervals, and the distance between every two adjacent pin teeth is 151 mm. The main track plate, the auxiliary track plate and the pin teeth are formed at a time though an integral die forging process, and the structure defects of materials are reduced; the pin teeth are distributed at the equal intervals of 151 mm, the bearing capacity, strength and use stability of the pin track are improved by increasing the pitch of the pin track, and thus the overall service life of the pin track is prolonged, the traction force of a coal cutter reaches 1350 kN, the strength of a pin row of the scraper conveyer reaches 150 kN, and the requirement of the medium-thickness coal seam coal cutter for two-way coal cutting on an inclined working face with a large inclination angle is met.

Description

technical field [0001] The invention belongs to the technical field of mining scraper conveyors, in particular to an integral die forging 151mm pitch pin rail and scraper conveyor. Background technique [0002] At present, among fully mechanized mining equipment in coal mines, the chainless traction of coal mining machines has become the mainstream machine for comprehensive mechanized coal mining due to its stability, uniform load distribution, large traction force, adaptability to large inclination angles, and convenient maintenance during use. type. Among them, traction wheel pin-rail type chainless traction is the most widely used. The pin rail is used as the track for the shearer to bear the traction force transmitted by the traction motor of the shearer. [0003] With the construction of high-yield and high-efficiency mines and the development of coal mining equipment technology, more and more high-power shearers with a power of 1920kW and a weight of about 100t are u...

AI Technical Summary

Problems solved by technology

When the inclination angle of the working face is greater than 20°, the coal machine not only cannot realize two-way coal cutting, upward coal cleaning and oblique cutting, but also the traction system wears quickly and has frequent failures

At present, there are mainly two types of driving wheel pitches in the chainless traction system of coal shearers: 126mm and 147mm. Due to the limitations of geometric dimensions, materials and heat treatment processes, the traction force can only reach 600kN and 1000kN, which restricts the operation of large inclined working faces. mining

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