CN205918436U - 具有双向侧推装置的伸缩梁 - Google Patents

具有双向侧推装置的伸缩梁 Download PDF

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CN205918436U
CN205918436U CN201620861373.2U CN201620861373U CN205918436U CN 205918436 U CN205918436 U CN 205918436U CN 201620861373 U CN201620861373 U CN 201620861373U CN 205918436 U CN205918436 U CN 205918436U
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roof beam
extensible canopy
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insertosome
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陈韬宇
原志芳
张晓彤
侯西龙
夏浩利
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LINZHOU HEAVY MACHINERY GROUP CO Ltd
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Abstract

本实用新型涉及一种具有双向侧推装置的伸缩梁，适用于综采工作面放顶煤液压支架、满足矿方对软煤层、易破碎顶板全封闭使用要求的伸缩梁。包括伸缩梁本体，伸缩梁本体包括第一插入体、第二插入体和第三插入体，第一插入体和第三插入体外侧内部分别设置有侧伸缩梁，侧伸缩梁可以从第一插入体或第三插入体一侧伸出，侧伸缩梁与侧推千斤顶、侧推千斤顶与伸缩梁本体分别通过铰接销铰接。本实用新型采用侧推千斤顶内置工作方式，不会导致与伸缩千斤顶外置及伸缩梁与顶梁导向配合干涉现象。

Description

具有双向侧推装置的伸缩梁
技术领域
本实用新型涉及一种具有双向侧护装置的伸缩梁，适用于综采工作面放顶煤液压支架、满足矿方对软煤层、易破碎顶板全封闭使用要求的伸缩梁。
背景技术
综合机械化采煤是煤矿采煤技术进步的重要标志，是煤矿增加产量、提高劳动效率、增加经济效益的重要手段。高产高效的综采技术的核心是采煤工作面的综采设备，综采工作面三大配套设备有采煤机、刮板输送机、液压支架；其中液压支架是综合机械化采煤设备的重要组成部分，在存在有大倾角、易破碎顶板、软煤层等复杂地质条件下实际回采过程中，容易出现片帮、冒顶现象，而传统的伸缩梁与顶梁导向装置存在局限性，架间通常有顶、掩、尾梁侧护板伸出即时支护，但传统支架架间伸缩梁伸出后因未设计有伸缩梁侧护装置，每个架间前部依然存在较大空间未封闭，如不及时支护，会造成漏顶现象，影响工作面的正常生产；双向侧护装置的伸缩梁的产生能够可靠而有效地支撑和控制采煤工作面的易破碎顶板，防止煤轩石掉落砸伤工作人员，具有很好的应用推广价值。
在综采工作过程中，液压支架的顶梁前端与煤壁线之间都要预留一段空顶距，防止支架前端面顶煤采空区顶板冒落，在液压支架上起到及时支护作用。尤其是在松软煤层或易破碎的煤层使用时，易破碎顶板、煤壁在矿压作用下，可能会发生"片帮"、 "冒落" 现象，而"片帮"又会导致顶板加剧"冒落"，同时"冒落"也会加剧煤壁"片 帮"的程度，最终可能会导致顶板管理失控；传统支架架间伸缩梁伸出后因未设计有伸缩梁侧护装置，每个架间前部依然存在较大空间未能完全封闭支护。
发明内容
本实用新型的目的是为改善通常液压支架在工作中依然存在的"片帮"和"冒落"的问题，提供一种满足矿方对易破碎顶板全封闭使用要求的具有双向侧护装置的伸缩梁。
为实现上述目的，本实用新型采用以下技术方案：具有双向侧推装置的伸缩梁,包括伸缩梁本体，伸缩梁本体包括第一插入体、第二插入体和第三插入体，第一插入体和第三插入体外侧内部分别设置有侧伸缩梁，侧伸缩梁可以从第一插入体或第三插入体一侧伸出，侧伸缩梁与侧推千斤顶、侧推千斤顶与伸缩梁本体分别通过铰接销铰接。
所述侧伸缩梁通过第一导向块和第二导向块实现滑动导向，第一导向块和第二导向块分布在侧推千斤顶的轴线两侧。
本实用新型的有益效果是：本实用新型采用伸缩侧推千斤顶内置工作方式，不会导致与伸缩千斤顶外置及伸缩梁与顶梁导向配合干涉现象；侧伸缩梁、侧推千斤顶安装于伸缩梁内部，侧伸缩梁在非工作状态时位于伸缩梁两侧箱体内部，使用时侧伸缩梁通过侧推千斤顶驱动伸出并伸向架间，架间侧伸缩梁相接触，减少两伸缩梁空顶距，增加了控顶面积，能够做到与相邻支架的伸缩梁对易破碎顶板的全封闭，减少了一线工作人员的工作量，基本上杜绝了漏矸事故的发生，保证了人身安全并提高了工作效率。
附图说明
图1是本实用新型的结构示意图。
图2是图1的A向视图。
具体实施方式
具有双向侧推装置的伸缩梁,包括伸缩梁本体4，伸缩梁本体4包括第一插入体7、第二插入体8和第三插入体9，第一插入体7和第三插入体9外侧内部设置有侧伸缩梁1，侧伸缩梁1可以从第一插入体7或第三插入体9一侧伸出，侧伸缩梁1与侧推千斤顶3、侧推千斤顶3与伸缩梁本体4分别通过铰接销2铰接，侧伸缩梁1通过第一导向块10和第二导向块11实现滑动导向，第一导向块10和第二导向块11分布在侧推千斤顶3的轴线两侧。
本实用新型伸缩梁装置两侧各有两处缺口，采用伸缩侧推千斤顶内置工作方式，不会导致与伸缩千斤顶外置及伸缩梁与顶梁导向配合干涉现象；侧伸缩梁、侧推千斤顶安装于伸缩梁内部，侧伸缩梁在非工作状态时位于伸缩梁两侧箱体内部，使用时侧伸缩梁通过侧推千斤顶驱动伸出并伸向架间，架间侧伸缩梁相接触，减少两伸缩梁空顶距，增加了控顶面积，能够做到与相邻支架的伸缩梁对易破碎顶板的全封闭，减少了一线工作人员的工作量，基本上杜绝了漏矸事故的发生，保证了人身安全并提高了工作效率。

Claims (2)

1.具有双向侧推装置的伸缩梁，包括伸缩梁本体，伸缩梁本体包括第一插入体、第二插入体和第三插入体，其特征在于：所述第一插入体和第三插入体外侧内部分别设置有侧伸缩梁，侧伸缩梁可以从第一插入体或第三插入体一侧伸出，侧伸缩梁与侧推千斤顶、侧推千斤顶与伸缩梁本体分别通过铰接销铰接。
2.根据权利要求1所述的具有双向侧推装置的伸缩梁, 其特征在于：所述侧伸缩梁通过第一导向块和第二导向块实现滑动导向，第一导向块和第二导向块分布在侧推千斤顶的轴线两侧。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288667A (zh) * 2017-08-25 2017-10-24 华电郑州机械设计研究院有限公司 一种展翼式伸缩梁侧护顶装置
CN111810210A (zh) * 2020-07-04 2020-10-23 张帅 一种液压支架
CN114352334A (zh) * 2021-11-25 2022-04-15 中国平煤神马能源化工集团有限责任公司 一种防漏煤放顶煤液压支架

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288667A (zh) * 2017-08-25 2017-10-24 华电郑州机械设计研究院有限公司 一种展翼式伸缩梁侧护顶装置
CN111810210A (zh) * 2020-07-04 2020-10-23 张帅 一种液压支架
CN111810210B (zh) * 2020-07-04 2022-04-26 济宁市勤创机械有限公司 一种液压支架
CN114352334A (zh) * 2021-11-25 2022-04-15 中国平煤神马能源化工集团有限责任公司 一种防漏煤放顶煤液压支架

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