Design method for dreg slide plate curved surface of heading machine cutter head

Abstract

The invention relates to a design method for dreg slide plate curved surfaces of a heading machine cutter head, and belongs to the field of design methods for heading machine cutter head structures. In the surface design method, technical performance requirements for the overall heading machine cutter head, construction requirements and requirements for smooth dreg removal of the cutter head are taken into consideration, the dreg discharging track on conventional dreg slide plates is changed, and shapes of dreg slide plate curved surfaces of the cutter head are constructed according to the steepest descent curve. The design method includes respectively designing a first, a second, a third, a fourth, a fifth and a sixth dreg slide plate curved surfaces of the cutter head, and uniformly welding the designed dreg slide plate curved surfaces to a back panel of the cutter head and supporting plates on the periphery of the cutter head. In application of the cutter head dreg slide plate curved surfaces designed by the method, dregs slide smoothly and sequentially, the cutter head dreg discharging efficiency is increased, vibration and noises of the heading machine are reduced effectively by means of changing the dreg discharging track, and research cycle of the heading machine is shortened; therefore, heading service life of the heading machine cutter head is prolonged and economic loss caused in engineering is reduced.

Description

Technical field: [0001] The invention belongs to the field of the design method of the cutter head structure of the roadheader, in particular to a design method of the curved surface of the dregs slide plate of the roadheader cutter head. Background technique: [0002] As one of the most important components of the roadheader, the rationality of its design is closely related to the tunneling efficiency of the roadheader. The design method of the cutterhead structure includes the layout of the cutter, the design of the parameters of the disk body structure, the design of the dross scraper and the design of the dregs slide plate, etc. [0003] During the excavation process of the cutterhead by the roadheader, rock ballast accumulates at the bottom of the cutterhead under the action of gravity, and they are scraped into the cutterhead by the scraper plate and fall on the ballast slide plate. With the rotation of the cutter head, the rock ballast rolls down along the ballast sl...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention Aiming at the defects of the existing design technology of the cutterhead ballast slide plate, a design method for the curved surface of the cutterhead ballast slide plate of the roadheader is invented

The curved surface of the cutterhead ballast slide plate designed by this method is to change the ballast discharge trajectory of the rock ballast on the traditional ballast slide plate, so as to improve the problem that the ballast discharge cannot be fully discharged in some limit cases in the process of rock ballast discharge, and achieve the goal of rock ballast discharge process. Smooth and rapid features; at the same time, using the curved surface of the ballast plate to enhance the strength and rigidity of the cutterhead is of great significance in improving the working efficiency of the roadheader.

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