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CN-121993199-A - Spiral roller of end disc toothless base type coal mining machine

CN121993199ACN 121993199 ACN121993199 ACN 121993199ACN-121993199-A

Abstract

The invention belongs to the technical field of mining equipment and discloses an end disc toothless base type coal cutter spiral roller, which comprises a cylindrical ring, a cutting pick assembly, an end disc, a cutting pick block group and an end cover, wherein the cylindrical ring is of a cylindrical structure, a connecting disc is welded on the inner side of the cylindrical ring, a blade is arranged on the outer side of the cylindrical ring, the cutting pick assembly is arranged on the blade, the end disc is arranged on the outer side wall of the cylindrical ring, the cutting pick block group comprises a base body and an alloy head, the bottom of the base body is arranged on the outer edge of the end disc through bolts, a plurality of mounting holes are formed in the top of the base body and used for mounting the alloy head, and the end cover is fixedly connected with the connecting disc through bolts. According to the technical scheme, the mounting mode of the end disc cutting teeth is changed, so that the number of the end disc cutting teeth is increased, the abrasion speed of the cutting teeth is reduced, and meanwhile, the replacement frequency of the cutting teeth can be reduced.

Inventors

  • LIU DONGYU
  • HUANG QIULAI
  • MA ZIYAO
  • JIANG NING
  • GAO HONGWEI
  • CAO YANG
  • ZHU HONG
  • TAO RONG
  • LI SONGMEI

Assignees

  • 天地上海采掘装备科技有限公司
  • 中煤科工集团上海有限公司

Dates

Publication Date
20260508
Application Date
20260309

Claims (6)

  1. 1. An end-disk toothless shearer helical drum, comprising: The cutting pick comprises a barrel ring (11), wherein the barrel ring (11) is of a cylindrical structure, a connecting disc (15) is welded on the inner side of the barrel ring (11), blades (12) are arranged on the outer side of the barrel ring (11), and cutting pick assemblies (17) are arranged on the blades (12); The end disc (16), the end disc (16) is installed on the lateral wall of a barrel ring (11), a plurality of pick block groups (18) are installed on the end disc (16), each pick block group (18) comprises a base body (182) and an alloy head (181), the bottom of each base body (182) is installed on the outer edge of the end disc (16) through bolts, a plurality of mounting holes (187) are formed in the top of each base body (182), and each mounting hole (187) is used for mounting each alloy head (181); the end cover (19), end cover (19) pass through bolt and connection pad (15) rigid coupling.
  2. 2. The spiral drum of the end-disk toothless shearer of claim 1, wherein a first water through hole (111) is formed at the joint of the inner side of the drum ring (11) and the connecting disk (15).
  3. 3. The end disc toothless-seat type coal cutter spiral roller according to claim 1 is characterized in that a round hole is formed in the center of the end disc (16), a plurality of kidney-shaped holes (161) are formed in the outer side of the round hole in the circumferential direction, the round hole is matched with the cylindrical ring (11), the middle of the outer edge of the end disc (16) is a circular arc surface, a plurality of planes are formed in the two sides of the end disc, two unthreaded holes (162) are formed in each plane in a corresponding mode, and the two unthreaded holes (162) are used for mounting pick block groups (18).
  4. 4. An end-disk toothless shearer helical drum as claimed in claim 1, characterized in that each alloy head (181) is mounted by brazing in a corresponding mounting hole (187).
  5. 5. The spiral roller of the end disc toothless shearer of claim 1, wherein the blades (12) are spiral blades (12), one side of the end disc (16) extends to the tail of the barrel ring (11), a water channel (122) is formed in the inner side of the blades (12), and a second water through hole (121) is formed in a welding position of the blades (12) and the cutting pick assembly (17).
  6. 6. The spiral drum of the end-disk toothless shearer of claim 1, wherein a loading blade (14) is installed on one side of the blade (12), a tail blade (13) is welded at the tail of the blade (12), and pick assemblies (17) are installed on the outer sides of the blade (12) and the tail blade (13).

Description

Spiral roller of end disc toothless base type coal mining machine Technical Field The invention belongs to the technical field of mining equipment, and particularly relates to a spiral roller of an end-disk toothless-seat type coal mining machine. Background The spiral roller of the coal cutter mainly breaks coal and rock bodies through cutting picks to complete the cutting function, and the service life and reliability of the cutting picks are one of key factors for improving production efficiency. At present, the cutting pick of the spiral roller is fixed on the roller at a specific angle mainly through being matched with a tooth sleeve and a tooth holder, and the cutting and loading functions of coal and rock are completed through the traction of a coal cutter and the rotation of the cutting pick, so that the mining efficiency of coal mine enterprises is improved. However, the maximum mounting quantity of the cutting picks in the mounting mode is limited by the sizes of the tooth holder and the roller, the cutting energy consumption is high, and the cutting picks are replaced frequently. The end plate is one of important components on the spiral roller of the coal mining machine, is positioned at the end part of the spiral roller, and moves relative to the coal wall when working, so that the cutting condition is bad. Under the current mounting means, cylinder end dish pick quantity is few, and the cutting energy consumption is high, and end dish pick wears fast, is difficult to guarantee in actual production to change the pick in time, leads to the toothholder wearing and tearing, and finally unable installation pick, cylinder life-span decline. Disclosure of Invention The invention aims to provide a spiral roller of an end-disk toothless-seat type coal mining machine, which solves the problems in the prior art. In order to achieve the above object, the present invention provides an end-disk toothless shearer helical drum comprising: The cylinder ring is of a cylindrical structure, a connecting disc is welded on the inner side of the cylinder ring, blades are mounted on the outer side of the cylinder ring, and pick assemblies are mounted on the blades; The end disc is arranged on the outer side wall of the cylinder ring, a plurality of pick block groups are arranged on the end disc, each pick block group comprises a base body and an alloy head, the bottom of the base body is arranged on the outer edge of the end disc through bolts, a plurality of mounting holes are formed in the top of the base body, and the mounting holes are used for mounting the alloy heads; And the end cover is fixedly connected with the connecting disc through bolts. Optionally, a water hole is formed at the connection part between the inner side of the cylinder ring and the connecting disc. Optionally, a round hole is formed in the center of the end disc, a plurality of kidney-shaped holes are formed in the outer side of the round hole in a circumferential direction, the round hole is matched with the cylinder ring, the middle of the outer edge of the end disc is a circular arc surface, a plurality of planes are formed in two sides of the outer edge of the end disc, two light holes are formed in each plane correspondingly, and the two light holes are used for mounting pick block groups. Optionally, each alloy head is mounted in a corresponding mounting hole by means of brazing. Optionally, the blade is a spiral blade, extends from one side of the end disc to the tail of the barrel ring, a water channel is formed in the inner side of the blade, and a water through hole is formed in the welding position of the blade and the cutting pick assembly. Optionally, loading blade is installed to one side of blade, the afterbody of blade welds the afterbody blade, the blade with the pick subassembly is all installed in the outside of afterbody blade. The invention has the technical effects that: According to the spiral roller of the end-disk toothless-base type coal mining machine, the installation mode of the end-disk cutting teeth is redesigned, the toothbase and the toothed sleeve parts are abandoned, the installation space of the cutting teeth is greatly reduced, the number of the end-disk cutting teeth is further increased, the problem that the number of the end-disk cutting teeth is limited by the size of the roller is solved, and therefore the cutting energy consumption of the end-disk cutting teeth can be reduced, and the abrasion speed of the cutting teeth is reduced; the cutting pick block set designed by the invention consists of the cutting pick alloy head and the matrix, and the tooth body structure of the conventional cutting pick is abandoned, so that the alloy heads can be more arranged on the matrix, the encryption arrangement of the cutting picks of the end disc is realized, and the loss speed of the cutting picks is reduced. Drawings In order to more clearly illustrate the embodiments of the present invention or the technic