No-rocker roller vertical-lifting-type comprehensive coal cutter

Abstract

The invention provides a no-rocker roller vertical-lifting-type comprehensive coal cutter. The no-rocker roller vertical-lifting-type comprehensive coal cutter is suitable for mining of a hard medium thick long wall coal seam with coal seam dip less than 30 degrees and medium thick coal quality and comprises a central control box, a left cutting lifting reduction gearbox, a right cutting lifting reduction gearbox, a left side guiding rail fixed box, a right side guiding rail fixed box, a left traction reduction gearbox, a right traction reduction gearbox, a left walking gear box and a right walking gear box. The left cutting lifting reduction gearbox and the right cutting lifting reduction gearbox are provided with sideways which are matched with lifting guiding rails of the left side guiding rail fixed box and the right side guiding rail fixed box. The left cutting lifting reduction gearbox and the right cutting lifting reduction gearbox are driven to do lifting movement by using lifting oil cylinders, and meanwhile, cutting motors of the left cutting lifting reduction gearbox and the right cutting lifting reduction gearbox drive a spiral roller to rotate through a cutting gear reduction mechanism. The left traction reduction gearbox and the right traction reduction gearbox drive the left walking gear box and the right walking gear box, and then left and right traction movement of the whole machine is driven. According to the no-rocker roller vertical-lifting-type comprehensive coal cutter, a cutting gear reduction mechanism adopts two-level gear transmission and two-level planetary gear transmission, a plurality of sets of idle wheel sets do not existed, and a transmission chain is simple; and by using matching of the lifting guiding rails and the sideways, the whole machine is compact in structure, and the reliability and stability of operation are improved.

Description

Technical field: [0001] The invention belongs to the technical field of coal mining, and in particular relates to a vertical lifting type comprehensive coal shearer without a rocker arm drum. Background technique: [0002] The comprehensive coal mining machine is currently the main highly integrated and highly automated comprehensive mining equipment for mining medium-thick coal seam coal. At present, the comprehensive shearers for coal mining in medium-thick coal seams at home and abroad are all rocker-arm type drum shearers, and the double-drum shearer is the most widely used. The rocker arm of the drum shearer is used as a mechanical arm at the same time. It also needs to have the function of cutting deceleration. Therefore, in order to achieve the required digging height, multiple sets of idlers have to be added in the process of cutting deceleration transmission. On the one hand, this structure makes the cutting transmission system redundant, and the complex transmissio...

AI Technical Summary

Problems solved by technology

At present, the comprehensive shearers for coal mining in medium-thick coal seams at home and abroad are all rocker-arm type drum shearers, and the double-drum shearer is the most widely used. The rocker arm of the drum shearer is used as a mechanical arm at the same time. It also needs to have the function of cutting deceleration. Therefore, in order to achieve the required digging height, multiple sets of idlers have to be added in the process of cutting deceleration transmission. On the one hand, this structure makes the cutting transmission system redundant, and the complex transmission chain makes the transmission The reliability of the system is reduced; on the other hand, the rocker arm itself has to bear the stress concentration caused by multiple sets of bearing holes, and at the same time, the rocker arm itself has to bear a huge gear meshing force, which can easily lead to failure and destruction of the rocker arm structure

Images