WO2017071000A1 - 浮摇式液压支架 - Google Patents

浮摇式液压支架 Download PDF

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Publication number
WO2017071000A1
WO2017071000A1 PCT/CN2015/095915 CN2015095915W WO2017071000A1 WO 2017071000 A1 WO2017071000 A1 WO 2017071000A1 CN 2015095915 W CN2015095915 W CN 2015095915W WO 2017071000 A1 WO2017071000 A1 WO 2017071000A1
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WIPO (PCT)
Prior art keywords
base
hinged
hydraulic
top beam
hinge
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Ceased
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PCT/CN2015/095915
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English (en)
French (fr)
Inventor
李炳文
洪建云
刘俊
赵继云
陈世其
赵亮
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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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Application filed by China University of Mining and Technology Beijing CUMTB filed Critical China University of Mining and Technology Beijing CUMTB
Priority to RU2016115377A priority Critical patent/RU2649700C2/ru
Priority to AU2015341421A priority patent/AU2015341421B1/en
Priority to US15/031,666 priority patent/US9926784B2/en
Publication of WO2017071000A1 publication Critical patent/WO2017071000A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0008—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a pair of joined struts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports

Definitions

  • the invention relates to a floating hydraulic support, which is especially suitable for roof support of a coal mining mechanized working face under coal mine, and is also suitable for other occasions requiring support.
  • Mine support equipment is one of the essential equipment in coal mines.
  • the supporting equipment used in the coal mine mainly has the hydraulic support of the four-bar linkage mechanism.
  • the movement track of the top beam of the four-link hydraulic support is a double-line.
  • the four-link hydraulic support began in the 1960s and was introduced into China's coal mining industry in the late 1970s.
  • the object of the present invention is to provide a floating hydraulic system with simple and reliable structural process, advanced supporting performance, large working space, good safety performance, low production cost and good performance. support.
  • the floating hydraulic support of the present invention comprises a top beam, a shield beam, a lifting frame, a base, an adjustment jack, a pushing device, a scraper conveyor and a hydraulic control valve group, and the front end of the sliding device and the scraping plate are transported
  • the machine is hinged, and the rear end is hinged with the base; two floating hydraulic columns arranged side by side are arranged between the front part and the top beam of the base; the upper ends of the two floating hydraulic columns are hinged to the top beam ball, and the lower end and the base ball are Hinged, the rear part of the base is welded with the elevated frame; the front end of the top beam is provided with a telescopic beam device, and the front end of the telescopic beam device is hinged with a protective device, and the rear end of the top beam is hinged with the shielding beam
  • the lower end of the shield beam is hinged with the upper end of the elevated frame; the upper end of the adjusting jack is hinged to the shield beam, and the lower end is hinged
  • the hydraulic control valve group is a manually operated hydraulic valve group or an electro-hydraulic remote control valve group.
  • the protective device is a primary protective device, or a secondary protective device, or a zero-level protective device.
  • the pushing device is a push-pull type shifting device or a pull-up type shifting device.
  • the adjustment jacks are used alone or in parallel.
  • the upper ends of the two suspension hydraulic columns are hinged to the top beam ball, and the lower end is hinged to the base ball.
  • a diagonal bracing is arranged between the upper part of the elevated frame and the base, and the diagonal braces are used alone or in parallel.
  • the key technology of the floating hydraulic support of the present invention is the suspension hydraulic technology and the principle of the secondary rocker.
  • the support column is a suspended hydraulic column, which has the characteristics of impact-resistant ground pressure, and improves the safety and stability of the bracket.
  • the basic structure of the bracket is a secondary rocker technical structure. When the rocker rises to the top plate, the secondary rocker continues to swing the top beam along a circular arc line. Since the primary rocker has contacted the top plate, the secondary rocker makes the second rocker The top beam oscillates in a small range. Therefore, the relative displacement distance between the top beam and the top plate of the bracket is very small, and it is safe and effective for roof support and surrounding rock control.
  • the floating hydraulic bracket realizes modular design, standardized design and serial design.
  • the maximum height hydraulic bracket in the module can cover the hydraulic bracket of smaller height, which reduces the intermediate link, improves the production efficiency and reduces the production cost. Rapid promotion of hydraulic supports.
  • Each module is designed with several hydraulic brackets with the same working resistance but different heights, and the height specifications conform to the serialization standard.
  • the principle of covering the lower height bracket with the highest bracket, the maximum height specification The trial production system, the sample rack inspection, the safety standard forensics work, the smaller size brackets are covered, the intermediate production links are reduced, and the production cycle is shortened.
  • the main advantages are:
  • the floating hydraulic support of the invention realizes modular design, standardized design and serial design, and can make parts into standard parts, and can form a standard series of different height specifications according to the coal seam condition, which coal mine needs Which specification is selected for the specification, which improves the production efficiency;
  • the floating hydraulic support of the invention can realize large-scale production, and each component can form a production line to realize large-scale rapid and effective production, and achieve the purpose of satisfying the large-scale promotion of the hydraulic support of the coal mine;
  • the floating hydraulic support of the invention has large working space and large ventilation area, and can be used for gas outburst coal mines, has safe and reliable use, good stability, convenient use and wide practicality.
  • the floating hydraulic support of the present invention uses the principle of the secondary rocker, and after the primary rocker reaches the contact top plate, the secondary rocker makes the top beam quickly and smoothly contact the top plate, and the relative displacement of the top beam and the top plate The distance between the top beam and the top plate of the traditional hydraulic support is greatly reduced, which improves the safety of the roof support and surrounding rock control.
  • FIG. 1 is a perspective view showing the structure of a first embodiment of the present invention.
  • Fig. 2 is a structural view showing the structure of a second embodiment of the present invention.
  • a floating hydraulic support mainly consists of a top beam 1 , a cover beam 2 , an elevated frame 3 , a base 4 , an adjustment jack 5 , two suspension hydraulic columns 6 , and a bottom lifting device 7 .
  • the shifting device 8, the scraper conveyor 9, the guarding device 10, the telescopic beam device 11, the hydraulic control valve group 12, the valve block bracket 13, the front bridge 14 and the rear bridge 15 are composed.
  • the top beam 1, the shield beam 2, the elevated frame 3, and the base 4 are welded by steel plates or profiles.
  • the front bridge 14 and the rear bridge 15 are welded by a thick steel plate and welded integrally with the base 4.
  • the hydraulic control valve group 12 adopts a manual operation valve group or an electro-hydraulic remote control valve group, and the hydraulic control valve group 12 is a control center for each action of the bracket, and can be manually operated or electro-hydraulic remote control.
  • the front end of the pushing device 8 is hinged to the scraper conveyor 9, and the rear end is hinged to the base 4.
  • the pushing device 8 is a direct push type shifting device or a pull-up type shifting device.
  • Two suspension hydraulic columns 6 arranged side by side are arranged between the front portion of the base 4 and the top beam 1. The upper ends of the two suspension hydraulic columns 6 are hinged to the top beam 1 and the lower end is hinged to the base 4.
  • the rear portion of the base 4 is welded to the elevated frame 3; the front end of the top beam 1 is provided with a telescopic beam device 11, and the front end of the telescopic beam device 11 is hinged with a protective device 10; It can be a primary protective device, or a secondary protective device, or a zero-level protective device; the protective device is composed of a guard plate, a guard plate jack supporting the guard plate, and an articulated shaft. .
  • the rear end of the top beam 1 is hinged with the shield beam 2, and the lower end of the shield beam 2 is hinged with the upper end of the elevation frame 3; the upper end of the adjustment jack 5 is hinged to the shield beam 2, and the lower end is hinged to the base 4;
  • the jacks 5 are used alone or in parallel.
  • the top beam 1 swings up and down around the hinge axis of the shield beam 2 under the action of two floating hydraulic columns 6; the shield beam 2 swings up and down around the hinge axis of the elevation frame 3 under the action of the adjustment jack 5.
  • the base 4 is provided with a front and rear bridge, the front bridge 14 is provided with a bottom lifting device 7, and the rear bridge 15 is provided with a valve block bracket 13 for mounting the hydraulic valve group 12.
  • the pushing device 8 is disposed in the base 4, and the two ends thereof are respectively hinged with the base 4 and the scraper conveyor 9 in the coal mining face, and the pushing device 8 is used for pushing the scraper conveyor 9 and moving the hydraulic support. component.
  • the top beam 1 swings up and down around the hinge shaft of the top beam 1 and the shield beam 2; when the adjustment jack 5 is up and down, the shield beam 2 surrounds the shield beam 2 and the elevated frame
  • the hinge shaft of 3 swings up and down.
  • the hydraulic control valve group 12 is a control center for manipulating and controlling the floating hydraulic support, two floating hydraulic columns 6, a telescopic beam device 11, a protective device 10, a pushing device 8, a lifting device 7, and an adjustment on the bracket.
  • the jacks 5 and the like are all controlled by the hydraulic control valve group 12, and the hydraulic control valve group 12 is mounted on the bridge 15 through the valve block bracket 13.
  • Embodiment 2 As shown in FIG. 2, it is basically the same as Embodiment 1, and the same portions are omitted. The difference is that the diagonal support 16 is disposed between the upper portion of the elevated frame 3 and the base 4, and the diagonal braces 16 are used alone or in parallel.
  • the bracket When the bracket is lifted, by operating the hydraulic control valve group 12, the high pressure liquid enters the two suspension hydraulic column 6 and the large cavity of the adjustment jack 5, the top beam 1 and the shield beam 2 swing and rise, and the shield beam 2 rises to contact the top plate to stop. Ascending, the top beam 1 continues to slightly oscillate the top beam 1 around the hinge axes of the top beam 1 and the shield beam 2 under the action of the two suspension hydraulic columns 6, until the initial working resistance of the bracket is reached, the telescopic beam device 11, the guard The device 10 is then extended or opened and the shield beam 2 is rotated about the hinge axis of the elevation frame 3 during the ascent.
  • the bracket When the bracket is lowered, by operating the hydraulic control valve group 12, the high pressure liquid enters the two suspension hydraulic column 6 and the small cavity of the adjustment jack 5, the top beam 1 and the shield beam 2 swing down, and the telescopic beam device 11 and the protective device 10 follow With the contraction, the top beam 1 rotates relative to the hinge axis of the shield beam 2 and simultaneously descends, while the shield beam 2 swings around the hinge axis of the elevation frame 3 and simultaneously descends, and the top beam 1 and the shield beam 2 simultaneously surround the hinge axis thereof. Relative swing and lower the bracket.
  • the completion of the four movements of the bracket is completed by operating the hydraulic control valve group 12.
  • the action sequence of the bracket is determined according to the situation of the working surface, and the brackets perform four actions of lifting, lowering, pushing and shifting, respectively.
  • the bracket completes a work cycle.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

公开了一种浮摇式液压支架，包括顶梁（1）、掩护梁（2）、抬高架（3）、底座（4）、调节千斤顶（5）、两根悬浮液压立柱（6）、抬底装置（7）、推移装置（8）、护帮装置（10）、伸缩梁装置（11）、液压控制阀组（12）及阀组支架（13）；两根悬浮液压立柱（6）并列布置于顶梁（1）与底座（4）之间，其上端与顶梁（1）球铰接，下端与底座（4）球铰接；在顶梁（1）前端内设有伸缩梁装置（11），护帮装置（10）与伸缩梁装置（11）铰接；掩护梁（2）上端与顶梁（1）铰接，下端与抬高架（3）上端铰接；调节千斤顶（5）上端与掩护梁（2）铰接，下端与底座（4）铰接；推移装置（8）前后两端分别与刮板输送机（9）和底座（4）铰接。浮摇式液压支架适应于煤矿井下的综合采煤机械化工作面，实现了模块化设计，并具有作业空间大，通风面积大，安全可靠，稳定性好等优点。

Description

浮摇式液压支架 技术领域
本发明涉及一种浮摇式液压支架,尤其适用于煤矿井下综合采煤机械化工作面的顶板支护,也适用于其它需要支护的场合。
背景技术
矿山支护设备是煤矿井下必不可少的设备之一。煤矿中使用的支护设备主要有四连杆机构的液压支架，四连杆液压支架顶梁的运动轨迹为一条双纽线，具体见煤炭工业出版社于1993年出版的《煤矿支护手册》第五篇第三章第三节内容和中国矿业大学出版社于2010年出版的“十一五”高等学校国家规划教材《矿山机械》一书中关于支护设备内容。四连杆液压支架起始于上世纪60年代，70年代末开始引入我国煤矿行业。四连杆液压支架存在的问题：一：作业空间小，通风面积小，安全性能差，使用性能差，维修维护不便；二：由于其顶梁运动轨迹为一双纽线，每次使用时要进行一对一重新设计，试制和性能检测，通过检测合格后，最后才能进行液压支架的生产制造，生产效率相当低下；三：由于四连杆液压支架的结构特点，其无法实现模块化设计，标准化设计，系列化设计，设计工作量繁重，生产周期长，劳动强度大，生产成本高。基于现有四连杆液压支架的问题，改变现有液压支架的技术原理和技术结构，具有重要的现实意义和历史意义。
发明内容
技术问题：本发明的目的是针对已有技术中存在的问题，提供一种结构工艺简单可靠、支护性能先进，作业空间大，安全性能好，生产成本低、使用性能好的浮摇式液压支架。
技术方案：本发明的浮摇式液压支架，包括顶梁、掩护梁、抬高架、底座、调节千斤顶、推移装置、刮板输送机和液压控制阀组，所述的推移装置前端与刮板输送机铰接，后端与底座铰接；所述底座的前部与顶梁之间设有并列布置的两根悬浮液压立柱；所述的两根悬浮液压立柱上端与顶梁球铰接，下端与底座球铰接，底座的后部与抬高架焊接在一起；所述顶梁的前端设有伸缩梁装置，伸缩梁装置的前端铰接有护帮装置，所述的顶梁的后端与掩护梁铰接在一起，掩护梁下端与抬高架的上端铰接在一起；所述调节千斤顶上端与掩护梁铰接，下端与底座铰接；所述的顶梁在两根悬浮液压立柱的作用下围绕与掩护梁的铰接轴上下摆动；所述的掩护梁在调节千斤顶的作用下围绕与抬高架的铰接轴上下摆动；所述的底座上设有前后过桥，前过桥上安设有抬底装置，后过桥上设有安装液压阀组的阀组支架。
所述的液压控制阀组为手动操作液压阀组或电液远程控制阀组。
所述的护帮装置为一级护帮装置、或二级护帮装置、或可为零级护帮装置。
所述的推移装置为直推式推移装置、或倒拉式推移装置。
所述的调节千斤顶为一根单独使用或两根并列使用。
所述的两根悬浮液压立柱上端与顶梁球铰接，下端与底座球铰接。
所述抬高架上部与底座之间设有斜撑，斜撑为一根单独使用或两根并列使用。
有益效果：本发明浮摇式液压支架的关键技术为悬浮液压技术和二次摇杆技术原理，支架立柱为悬浮液压立柱，具有抗冲击地压的特性，提高了支架的安全性和稳定性，支架基本结构为二次摇杆技术结构，在一次摇杆上升至顶板时，二次摇杆继续使顶梁沿着一条圆弧线摆动，由于一次摇杆已接触顶板，所以二次摇杆使顶梁在较小的范围内摆动，因此，支架顶梁与顶板的相对错动距离非常小，对顶板支护和围岩控制安全有效。浮摇式液压支架实现了模块化设计，标准化设计及系列化设计，模块内最大高度液压支架可以覆盖较小高度的液压支架，减少了中间环节，提高了生产效率，降低了生产成本，可实现液压支架的快速推广。根据煤矿顶板压力和高度设置若干模块，每一个模块设计若干相同工作阻力但高度不同的液压支架规格，而且高度规格符合系列化标准，以最高支架覆盖较低高度支架的原则，对最大高度规格样架试制、样架检测、安标取证工作，较小规格支架被覆盖，减少了中间生产环节，缩短了生产周期。主要优点有：
(1)本发明浮摇式液压支架实现了模块化设计，标准化设计及系列化设计，可把零部件制成标准件，根据煤层情况可组成标准系列的不同高度规格的支架，煤矿需要哪一种规格就选哪一种规格，提高了生产效率；
(2)本发明浮摇式液压支架可实现规模化生产，各零部件可形成生产线，以实现大规模快速、有效地生产，达到满足煤矿大规模推广液压支架的目的；
(3)本发明浮摇式液压支架作业空间大，通风面积大，可使用于瓦斯突出煤矿，使用安全可靠，稳定性好，使用方便，具有广泛的实用性。
(4)本发明浮摇式液压支架因使用了二次摇杆技术原理，在一次摇杆达到接触顶板后，二次摇杆使顶梁快速平稳接触顶板，而且顶梁与顶板的相对错动距离较传统液压支架顶梁和顶板的错动距离大大缩小，改善了顶板支护和围岩控制安全。
附图说明
图1是本发明的实施例1结构外形图。
图2是本发明的实施例2结构外形图。
图中：顶梁－1，掩护梁－2，抬高架—3，底座－4，调节千斤顶—5，悬浮液压立柱－6，抬底装置—7，推移装置－8，刮板输送机－9，护帮装置—10，伸缩梁装置—11、液压控制阀组－12，阀组支架—13，前过桥—14，后过桥—15，斜撑16。
具体实施方式
下面结合附图中的实施例对本发明作进一步的描述：
实施例1：如图1所示，一种浮摇式液压支架，主要由顶梁1、掩护梁2、抬高架3、底座4、调节千斤顶5、两根悬浮液压立柱6、抬底装置7、推移装置8、刮板输送机9、护帮装置10、伸缩梁装置11、液压控制阀组12、阀组支架13、前过桥14和后过桥15组成。所述的顶梁1、掩护梁2、抬高架3、底座4由钢板或型钢焊接而成。所述的前过桥14和后过桥15由厚钢板焊接而成，并与底座4焊接为一体。所述的液压控制阀组12采用手动操作阀组或电液远程控制阀组，液压控制阀组12是支架各动作的操控中心，可手工操作或电液远程控制。所述的推移装置8前端与刮板输送机9铰接，后端与底座4铰接；所述的推移装置8为直推式推移装置、或倒拉式推移装置。所述底座4的前部与顶梁1之间设有并列布置的两根悬浮液压立柱6，两根悬浮液压立柱6上端与顶梁1球铰接，下端与底座4球铰接。底座4的后部与抬高架3焊接在一起；所述顶梁1的前端设有伸缩梁装置11，所述的伸缩梁装置11的前端铰接有护帮装置10；所述的护帮装置10可为一级护帮装置、或为二级护帮装置、或也可为零级护帮装置；所述的护帮装置由护帮板、支撑护帮板的护帮板千斤顶和铰接轴构成。顶梁1的后端与掩护梁2铰接在一起，掩护梁2下端与抬高架3的上端铰接在一起；所述调节千斤顶5上端与掩护梁2铰接，下端与底座4铰接；所述的调节千斤顶5为一根单独使用或两根并列使用。所述的顶梁1在两根悬浮液压立柱6的作用下围绕与掩护梁2的铰接轴上下摆动；所述的掩护梁2在调节千斤顶5的作用下围绕与抬高架3的铰接轴上下摆动；所述的底座4上设有前后过桥，前过桥14上安设有抬底装置7，后过桥15上设有安装液压阀组12的阀组支架13。
所述的推移装置8设在底座4内，其两端分别与底座4和采煤工作面内的刮板输送机9铰接，推移装置8是用于推移刮板输送机9和移动液压支架的部件。所述的两根悬浮液压立柱6上下伸缩时，顶梁1围绕顶梁1与掩护梁2的铰接轴上下摆动；所述的调节千斤顶5上下伸缩时，掩护梁2围绕掩护梁2与抬高架3的铰接轴上下摆动。
所述液压控制阀组12是操纵和控制浮摇式液压支架的操控中心，支架上的两根悬浮液压立柱6、伸缩梁装置11、护帮装置10、推移装置8、抬底装置7、调节千斤顶5等均由液压控制阀组12来操纵控制，液压控制阀组12通过阀组支架13安装于过桥15上。
实施例2：如图2所示，与实施例1基本相同，相同部分略。不同之处在于：所述抬高架3上部与底座4之间设有斜撑16，斜撑16为一根单独使用或两根并列使用。
工作过程：
支架升架时，通过操作液压控制阀组12，高压液体进入两根悬浮液压立柱6和调节千斤顶5的大腔，顶梁1、掩护梁2摆动并上升，掩护梁2上升至接触顶板时停止上升，顶梁1在两根悬浮液压立柱6作用下继续使顶梁1围绕顶梁1和掩护梁2的铰接轴作微小摆动，直至达到支架的初撑工作阻力，伸缩梁装置11、护帮装置10随之伸出或打开，掩护梁2在上升过程中围绕与抬高架3的铰接轴转动。
支架降架时，通过操作液压控制阀组12，高压液体进入两根悬浮液压立柱6和调节千斤顶5的小腔，顶梁1、掩护梁2摆动下降，伸缩梁装置11和护帮装置10随之收缩，顶梁1围绕与掩护梁2的铰接轴相对转动并同时下降，同时掩护梁2围绕与抬高架3的铰接轴摆动并同时下降，顶梁1和掩护梁2同时围绕其铰接轴做相对摆动并使支架下降。
支架推溜时，通过操作液压控制阀组12，高压液体进入推移装置8内千斤顶的小腔或大腔，并推移刮板输送机9。
支架移架时，刮板输送机9固定，通过操作液压控制阀组12，高压液体进入推移装置8内千斤顶的大腔或小腔，拉移液压支架。
支架四个动作的完成均是通过操作液压控制阀组12来完成的，支架的动作顺序是根据工作面现场情况确定，支架每完成升架、降架、推溜及移架四个动作一次，支架便完成一个工作循环。

Claims (6)

  1. 一种浮摇式液压支架，包括顶梁(1)、掩护梁(2)、抬高架(3)、底座(4)、调节千斤顶(5)、推移装置(8)、刮板输送机(9)和液压控制阀组(12)，其特征在于：所述的推移装置(8)前端与刮板输送机(9)铰接，后端与底座(4)铰接；所述底座(4)的前部与顶梁(1)之间设有并列布置的两根悬浮液压立柱(6)；所述的两根悬浮液压立柱(6)上端与顶梁(1)球铰接，下端与底座(4)球铰接，底座(4)的后部与抬高架(3)焊接在一起；所述顶梁(1)的前端设有伸缩梁装置(11)，伸缩梁装置(11)的前端铰接有护帮装置(10)，所述的顶梁(1)的后端与掩护梁(2)铰接在一起，掩护梁(2)下端与抬高架(3)的上端铰接在一起；所述调节千斤顶(5)上端与掩护梁(2)铰接，下端与底座(4)铰接；所述的顶梁(1)在两根悬浮液压立柱(6)的作用下围绕与掩护梁(2)的铰接轴上下摆动；所述的掩护梁(2)在调节千斤顶(5)的作用下围绕与抬高架(3)的铰接轴上下摆动；所述的底座(4)上设有前后过桥，前过桥(14)上安设有抬底装置(7)，后过桥(15)上设有安装液压阀组(12)的阀组支架(13)。
  2. 根据权利要求1所述的浮摇式液压支架，其特征在于：所述的液压控制阀组(12)为手动操作液压阀组或电液远程控制阀组。
  3. 根据权利要求1所述的浮摇式液压支架，其特征在于：所述的护帮装置(10)为一级护帮装置、或二级护帮装置、或可为零级护帮装置。
  4. 根据权利要求1所述的浮摇式液压支架，其特征在于：所述的推移装置(8)为直推式推移装置、或倒拉式推移装置。
  5. 根据权利要求1所述的浮摇式液压支架，其特征在于：所述的调节千斤顶(5)为一根单独使用或两根并列使用。
  6. 根据权利要求1所述的浮摇式液压支架，其特征在于：所述抬高架(3)上部与底座(4)之间铰接有斜撑(16)，斜撑(16)为一根单独使用或两根并列使用。
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