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Improvements in belt-tensioning devices for belt conveyors

机译:带式输送机的皮带张紧装置的改进

摘要

958,592. Tensioning endless belt conveyers. MINING ENGINEERING CO. Ltd. Jan. 16, 1962 [Feb. 2, 1961], No. 3980/61. Heading B8A. A belt-tensioning drum 18 is carried on rollers 24 that ride on the sides of a carriage 20 and is constrained to move with its axis at right angles to the line of motion by means of two parallel chains 25 which engage sprockets 27 keyed to a shaft 29 and independently mounted sprockets 28. The chains are attached by eye bolts 32 to a frame 26 carried by the shaft 23 of the drum, the bolts being adjusted to tension the chains and square up the drum initially. A part of the frame 26 which extends outside the loop of the conveyer belting forms a yoke provided with a pulley 33 for engagement by a rope 34 connected to a load-sensitive winch 35 or a gravity tower. In use, the belt acquires a permanent stretch and also stretches elastically in response to changes in the load it carries. Elastic stretch is accommodated by movement of the drum to and fro along the carriage which normally remains undisturbed. But the gradual increase in permanent stretch causes the drum to shift its mean position towards the ganged sprockets 27 until a stop 36 on the frame 36 engages a cross member 37 of the carriage. The drum then shifts the carriage 20, which is slidable in a main framework 11, to a new position in the framework, where it remains until another increment of permanent stretch causes the drum to reposition the carriage. The independently mounted sprockets 28 may be replaced by pulleys and the lengths of chain which run over the independently mounted sprockets may be replaced by wire cables. In a modification, Fig. 6, the chains are attached at one end to the drum shaft or its mountings and at the other end to a yoke 39. The centre of the yoke is connected to the load sensitive winch, gravity tower or the like by a rope 40 which is doubled around a pulley 41 on the carriage.
机译:958,592。张紧环带输送机。矿业工程有限公司,1962年1月16日[Feb. [1961年2月],第3980/61号。标题B8A。皮带张紧滚筒18承载在滚轮24上,滚轮24骑在滑架20的侧面,并通过两条平行链条25约束其轴线与运动线成直角运动,两条平行链条25啮合链轮27,而链轮27的键轴29和独立安装的链轮28。链条通过吊环螺栓32连接到滚筒26的轴23所支撑的框架26上,调整螺栓以张紧链条并使滚筒最初成直角。框架26的延伸到传送带的环之外的部分形成了轭架,轭架设有滑轮33,该滑轮33被连接至对负荷敏感的绞盘35或重力塔的绳索34接合。在使用中,安全带获得永久的拉伸,并根据其承受的载荷变化而弹性拉伸。鼓轮沿着滑架来回移动可容纳弹性伸展,通常不会受到干扰。但是,永久拉伸的逐渐增加导致滚筒将其平均位置移向联动链轮27,直到框架36上的挡块36与滑架的横梁37接合为止。然后,滚筒将可在主框架11中滑动的滑架20移动到框架中的新位置,直到新的永久性拉伸增量导致滚筒重新定位滑架为止。独立安装的链轮28可以由滑轮代替,并且在独立安装的链轮上延伸的链条的长度可以由钢丝绳替代。在图6的一种改型中,链条的一端连接到鼓轴或其安装架,另一端连接到轭架39。轭架的中心连接到负载敏感的绞车,重力塔等。通过绳索40,绳索40围绕托架上的滑轮41翻倍。

著录项

  • 公开/公告号GB958592A

    专利类型

  • 公开/公告日1964-05-21

    原文格式PDF

  • 申请/专利权人 THE MINING ENGINEERING COMPANY LIMITED;

    申请/专利号GB19610003980

  • 发明设计人 DUNCAN ANGUS WELLESLEY;

    申请日1961-02-02

  • 分类号B65G23/44;

  • 国家 GB

  • 入库时间 2022-08-23 16:17:46

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