WO2016150072A1 - 波浪形螺旋叶片滚筒 - Google Patents

波浪形螺旋叶片滚筒 Download PDF

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Publication number
WO2016150072A1
WO2016150072A1 PCT/CN2015/086600 CN2015086600W WO2016150072A1 WO 2016150072 A1 WO2016150072 A1 WO 2016150072A1 CN 2015086600 W CN2015086600 W CN 2015086600W WO 2016150072 A1 WO2016150072 A1 WO 2016150072A1
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Prior art keywords
spiral blade
pick
spiral
undulating
hub
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Ceased
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PCT/CN2015/086600
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English (en)
French (fr)
Inventor
刘送永
吴洪状
杜长龙
薛玉刚
崔新霞
李建平
刘晓辉
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China University of Mining and Technology Beijing CUMTB
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China University of Mining and Technology Beijing CUMTB
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Publication of WO2016150072A1 publication Critical patent/WO2016150072A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums

Definitions

  • the invention relates to a wave-shaped spiral blade drum, in particular to a wave-shaped spiral blade drum suitable for a drum type shearer.
  • Coal is the most important energy source in China, and mining machinery is the main tool for coal mining.
  • the drum type shearer is the most widely used coal mining machine. The coal seam is cut by the picks on the shearer drum.
  • most of the drum type shearers currently used have high cutting energy consumption and lump coal. There are few problems, so reducing the cutting energy consumption and increasing the lump coal rate has always been the direction to improve the performance of the shearer. In recent years, although the coal cutting machine has gradually reduced the energy consumption and the lump coal rate has gradually increased, the optimization space is still large.
  • the object of the present invention is to provide a wave-shaped spiral blade drum according to the prior art, and to properly adjust the pick structure on the basis of the prior art, thereby further reducing the cutting energy consumption and improving the block. Coal rate.
  • the undulating spiral blade drum of the present invention comprises a hub, a spiral blade, an end plate, and a ⁇ -type pick mounted on the end plate and the spiral blade, the hub is cylindrical, and the hub head is welded with the end
  • the disc is arranged on the end disc with the ⁇ -type picks having different inclination angles, and the ⁇ -type picks mounted on the end disc are obliquely distributed on the 5 cut lines on the end disc, and the intercepts of the 5 cut lines are respectively 20mm, the inclination angle is 35°, 20°, 0°, -7°, -15°;
  • the hub is welded with two spiral blades with outer rims and a wavy peak of one spiral blade.
  • the top corresponds to the undulating valley bottom of the other spiral blade.
  • the picks are mounted at the undulating peaks and wavy valleys of the spiral blades, respectively.
  • the diameter difference between the peak top of the undulating spiral blade and the outer edge of the valley bottom is 16-40 mm, and the diameter difference of the outer edge is selected according to the diameter of the drum; the diameter of the end disc is the average of two wavy spiral blades. diameter.
  • the present invention adjusts the pick structure reasonably, and the outer edge of the spiral blade is wave-shaped to avoid stress concentration, and the strength and rigidity of the spiral blade are not too much.
  • Large influence on each cut line of the spiral blade, the pick is always distributed one high and one low.
  • the mounting height of the pick is the average height of the pick on the spiral blade, thereby Make the total cutting thickness of each cut line the same.
  • the utility model has the advantages of simple structure, convenient installation and operation, and wide practicality in the technical field.
  • Figure 1 is a schematic exploded view showing the undulating spiral blade drum of the present invention
  • Figure 2 is a schematic view showing the structure of a drum of the undulating spiral blade drum of the present invention
  • Fig. 3 is a schematic view showing the structure of a roller of the undulating spiral blade drum of the present invention without an attached pick.
  • the undulating spiral blade drum of the present invention is mainly composed of a hub 1, an undulating spiral blade 2, an end plate 3, and a cymbal type cutter 4.
  • the hub 1 is cylindrical, the head of the hub 1 is welded with an end disc 3, and the end disc 3 is arranged with a pick-type pick 4 having different inclination angles, and the end disc 3 has a, b, c, d And e 5 spiral blade cut lines 5 with an intercept of 20 mm, and the inclination angles of the ⁇ -type picks 4 installed on each of the lines a, b, c, d and e are 35°, 20°, 0°, respectively.
  • the hub 1 is welded with two spiral blades 2 whose outer edges are undulating, and the ⁇ -shaped picks 4 on each spiral blade 2 are spaced apart, and the two spiral blades 2 are arranged.
  • Each of the sections has two ⁇ -type picks 4 with different installation heights.
  • the wavy peak of one spiral blade The top corresponds to the wavy valley bottom of the other spiral blade; the difference between the peak top and the outer edge diameter of the wave spiral blade 2 is 16-40 mm, and the diameter difference of the outer edge is selected according to the diameter of the drum.
  • the outer edge of the spiral blade 2 is wavy; the cymbal pick 4 is mounted on the undulating peak and the wavy valley of the spiral blade to achieve different mounting heights.
  • the end disc 3 has a diameter which is the average diameter of the undulating spiral blade 2.
  • the undulating spiral blade drum of the invention has a wavy shape on the outer edge of the spiral blade on the drum, which does not affect the strength and rigidity of the spiral blade, and can change the installation height of the ⁇ type pick, thereby improving the pick
  • the distance between the two increases the lump coal rate and reduces the cutting energy consumption; on the same section, the wavy peak of one spiral blade corresponds to the wavy valley of the other spiral blade, and the ⁇ type pick is mounted on the spiral
  • the ⁇ -shaped picks on each of the sections are always distributed one high and one low, so that the total cutting thickness of each cut line is the same.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Shearing Machines (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

一种波浪形螺旋叶片滚筒被公开。该滚筒适用于滚筒式采煤机，包括筒毂（1）、螺旋叶片（2）、端盘（3）、镐型截齿（4）。筒毂（1）为圆柱形，筒毂（1）头部焊有端盘（3），筒毂（1）上焊有两条螺旋叶片（2）构成双头滚筒，端盘（3）和螺旋叶片（2）上布置安装镐型截齿（4）。螺旋叶片（2）外缘为波浪形，在同一条截线上，一条螺旋叶片的峰顶对应另一条螺旋叶片的谷底，使每一条截线的总切削厚度相同；镐型截齿（4）按顺序式配置安装在螺旋叶片的峰顶和谷底处，以实现不同的安装高度。该滚筒破煤效率高，块煤率大，且结构简单、安装操作方便。

Description

波浪形螺旋叶片滚筒 技术领域：
本发明涉及一种波浪形螺旋叶片滚筒，尤其是一种适用于滚筒式采煤机的波浪形螺旋叶片滚筒。
背景技术：
煤炭是我国最主要的能源，采掘机械是煤炭开采的主要工具。滚筒式采煤机是使用最广泛的采煤机械，通过采煤机滚筒上的截齿对煤层进行截割，但目前使用的滚筒式采煤机大都存在着截割比能耗高、块煤少的问题，因此减小截割比能耗、提高块煤率一直是提高采煤机性能的方向。近年来，虽然采煤机截割比能耗逐渐减小，块煤率逐渐提高，但优化空间仍然很大。
发明内容：
技术问题：本发明的目的是针对已有技术的问题，提供一种波浪形螺旋叶片滚筒，在现有技术的基础上，合理调整截齿结构，从而进一步减小截割比能耗，提高块煤率。
技术方案：本发明的波浪形螺旋叶片滚筒，包括筒毂、螺旋叶片、端盘、以及安装在端盘和螺旋叶片上的镐型截齿，筒毂为圆柱形，筒毂头部焊有端盘，端盘上布置安装有倾斜角度不同的镐型截齿，所述安装在端盘上的镐型截齿倾斜分布在端盘上的5条截线上，5条截线的截距分别为20mm、倾斜角度分别为35°、20°、0°、-7°、-15°；所述的筒毂上焊有两条外缘为波浪形的螺旋叶片，一条螺旋叶片的波浪形峰顶对应另一条螺旋叶片的波浪形谷底，两条螺旋叶片上分布有11条截线，截距为40mm，每条截线上布置有安装高度不同的两个镐型截齿，两个镐型截齿分别安装在螺旋叶片的波浪形峰顶和波浪形谷底处。
所述的波浪形螺旋叶片的峰顶与谷底的外缘直径差为16-40mm，根据滚筒直径的大小选择外缘直径差的大小；所述的端盘直径为两条波浪形螺旋叶片的平均直径。
有益效果：由于采用了上述技术方案，本发明在现有技术的基础上，合理调整截齿结构，将螺旋叶片外缘做成波浪形，避免产生应力集中，对螺旋叶片的强度和刚度没有太大影响；在螺旋叶片的每一条截线上，截齿总是一高一低分布，在端盘的每条截线上，截齿的安装高度为螺旋叶片上的截齿的平均高度，从而使每条截线的总切削厚度相同。通过增大螺旋叶片上截齿的截线距，有效减小了截割比能耗，从而大大提高了块煤率。其结构简单、安装操作方便，在本技术领域内具有广泛的实用性。
附图说明:
图1是本发明的波浪形螺旋叶片滚筒展开结构示意图；
图2是本发明的波浪形螺旋叶片滚筒的滚筒结构简图；
图3是本发明的波浪形螺旋叶片滚筒的未安装截齿的滚筒结构简图。
图中：1—筒毂；2—波浪形螺旋叶片；3—端盘；4—镐型截齿；5—截线。
具体实施方式：
下面结合附图对本发明的一个实施作进一步的描述：
如图1所示，本发明的波浪形螺旋叶片滚筒主要由筒毂1、波浪形螺旋叶片2、端盘3、镐型截齿4构成。所述的筒毂1为圆柱形，筒毂1头部焊有端盘3，端盘3上布置安装有倾斜角度不同的镐型截齿4，端盘3上有a、b、c、d和e 5条螺旋叶片截线5，截距为20mm，a、b、c、d和e每条截线上所安装的镐型截齿4的倾斜角度分别为35°、20°、0°、-7°、-15°；所述的筒毂1上焊有两条外缘为波浪形的螺旋叶片2，每条螺旋叶片2上的镐型截齿4间隔布置，两条螺旋叶片2上共有f-P11条螺旋叶片截线5，截距为40mm，每条截线上布置有安装高度不同的两个镐型截齿4，在同一条截线上，一条螺旋叶片的波浪形峰顶对应另一条螺旋叶片的波浪形谷底；所述的波浪形螺旋叶片2的峰顶与谷底的外缘直径差为16-40mm，根据滚筒直径的大小选择外缘直径差的大小。
如图2和图3所示，所述的螺旋叶片2外缘为波浪形；所述的镐型截齿4安装在螺旋叶片的波浪形峰顶和波浪形谷底处，以实现不同的安装高度；所述的端盘3直径为波浪形螺旋叶片2的平均直径。
工作原理：本发明的波浪形螺旋叶片滚筒，滚筒上的螺旋叶片外缘做成波浪形，既不会影响螺旋叶片的强度和刚度，又能改变镐型截齿的安装高度，从而提高截齿之间的距离，提高块煤率，减小截割比能耗；在同一条截线上，一条螺旋叶片的波浪形峰顶对应另一条螺旋叶片的波浪形谷底，镐型截齿安装在螺旋叶片的波浪形峰顶和谷底处，使每一条截线上的镐型截齿总是一高一低分布，从而使每一条截线的总切削厚度相同。

Claims (3)

  1. 一种波浪形螺旋叶片滚筒，包括筒毂(1)、螺旋叶片(2)、端盘(3)、以及安装在端盘和螺旋叶片上的镐型截齿(4)，筒毂(1)为圆柱形，筒毂(1)头部焊有端盘(3)，端盘(3)上布置安装有倾斜角度不同的镐型截齿(4)，其特征在于：所述安装在端盘(3)上的镐型截齿(4)倾斜分布在端盘(3)上的5条截线(5)上，5条截线(5)的截距分别为20mm、倾斜角度分别为35°、20°、0°、-7°、-15°；所述的筒毂(1)上焊有两条外缘为波浪形的螺旋叶片(2)，一条螺旋叶片的波浪形峰顶对应另一条螺旋叶片的波浪形谷底，两条螺旋叶片(2)上分布有11条截线(5)，截距为40mm，每条截线(5)上布置有安装高度不同的两个镐型截齿(4)，两个镐型截齿(4)分别安装在螺旋叶片(2)的波浪形峰顶和波浪形谷底处。
  2. 根据权利要求1所述的波浪形螺旋叶片滚筒，其特征在于：所述的波浪形螺旋叶片(2)的峰顶与谷底的外缘直径差为16-40mm，根据滚筒直径的大小选择外缘直径差的大小。
  3. 根据权利要求1所述的波浪形螺旋叶片滚筒，其特征在于：所述的端盘(3)直径为两条波浪形螺旋叶片(2)的平均直径。
PCT/CN2015/086600 2015-03-26 2015-08-11 波浪形螺旋叶片滚筒 Ceased WO2016150072A1 (zh)

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PL448424A1 (pl) * 2024-04-26 2025-10-27 Urządzenia I Konstrukcje Spółka Akcyjna Organ urabiający górniczej frezarki spągowej

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CN104747188B (zh) * 2015-03-26 2017-04-19 中国矿业大学 波浪形螺旋叶片滚筒
US9903202B2 (en) * 2015-09-28 2018-02-27 Joy Mm Delaware, Inc. Shield for sumping frame of mining machine
CN106640067B (zh) * 2017-03-20 2019-04-16 辽宁工程技术大学 一种用于截割夹矸煤岩的采煤机螺旋滚筒
CN108386189B (zh) * 2018-04-04 2021-04-09 中国矿业大学(北京) 一种采煤机及其滚筒
CN108661099B (zh) * 2018-06-22 2023-12-12 中铁工程机械研究设计院有限公司 双轮铣槽机铣轮布齿系统
CN116201484A (zh) * 2023-05-05 2023-06-02 山东省地质科学研究院 坑道钻机用钻头

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Publication number Priority date Publication date Assignee Title
PL448424A1 (pl) * 2024-04-26 2025-10-27 Urządzenia I Konstrukcje Spółka Akcyjna Organ urabiający górniczej frezarki spągowej

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