WO2023231584A1 - 用于转载机机头的一体式超前支架 - Google Patents

用于转载机机头的一体式超前支架 Download PDF

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Publication number
WO2023231584A1
WO2023231584A1 PCT/CN2023/087622 CN2023087622W WO2023231584A1 WO 2023231584 A1 WO2023231584 A1 WO 2023231584A1 CN 2023087622 W CN2023087622 W CN 2023087622W WO 2023231584 A1 WO2023231584 A1 WO 2023231584A1
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WO
WIPO (PCT)
Prior art keywords
hydraulic cylinder
guide tube
column
hinged
plate
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Application number
PCT/CN2023/087622
Other languages
English (en)
French (fr)
Inventor
张定堂
李鹏
陈戈
田可庆
王冠黎
李宇航
张继业
冯师超
王国瑞
杨航
Original Assignee
郑州煤矿机械集团股份有限公司
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Application filed by 郑州煤矿机械集团股份有限公司 filed Critical 郑州煤矿机械集团股份有限公司
Publication of WO2023231584A1 publication Critical patent/WO2023231584A1/zh

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Classifications

    • 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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential 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
    • E21D23/04—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
    • E21D23/0472—Supports specially adapted for people walking or transporting material
    • 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices

Definitions

  • the invention relates to the technical field of transportation tunnel support equipment for fully mechanized mining and fully mechanized caving working faces in underground coal mines, and specifically relates to an integrated leading bracket for the head of a transfer machine.
  • the advance support range at the connection between the safety exit of the fully mechanized top coal caving working face or the coal mining face with moderate or higher impact risk areas and the roadway shall not be less than 120 meters.
  • the advance support range shall not be less than 120 meters. Hydraulic supports are preferred for maintenance.
  • the nose of the loader When the advance support range is required to be large, the nose of the loader is usually included. However, the nose of the loader is usually the widest part of the entire loader. For transport lanes with smaller widths, the nose of the loader usually cannot be arranged. Conventional two-in-a-set, single-row or other forms of advance supports still use single hydraulic pillars for reinforced support, which cannot meet the relevant regulations on advance support and the requirements for intelligent working face construction by administrative departments at all levels. . At present, for the advance support at the head of the transfer machine, there is no other feasible technical solution except increasing the width of the tunnel to arrange the advance support.
  • the present invention provides an integrated advance bracket for the head of the reloading machine, which is integrated with the head of the reloading machine. It has a compact structure and takes up little tunnel space, solving the above technical problems.
  • the present invention adopts the following technical solutions:
  • an integrated leading bracket for the reprinter machine head including a top beam.
  • Vertical guide tubes are provided under the top beam at the front and rear sides of the reprinter motor, and column boots are provided below the guide tube.
  • a transverse fixed plate is provided in the middle of the guide cylinder, and an upper column is provided above the fixed plate in the guide cylinder.
  • the upper column includes an upper hydraulic cylinder barrel and an upper movable column located in the upper hydraulic cylinder barrel.
  • the upper hydraulic cylinder barrel The upper end of the column is hinged to the top beam, and the lower end of the upper movable column is fixedly connected to the top surface of the fixed plate; the upper hydraulic cylinder moves in the guide tube to drive the top beam to move up and down;
  • a lower column is provided in the guide tube below the fixed plate.
  • the lower column includes a lower hydraulic cylinder and a lower movable column located in the lower hydraulic cylinder.
  • the lower end of the lower hydraulic cylinder is hinged with the column shoe, and the top of the lower movable column Fixedly connected to the bottom surface of the fixed plate; the lower hydraulic cylinder moves in the guide tube to drive the column shoe to move up and down.
  • the leading support is in the supporting state, and the lower hydraulic cylinder moves down along the guide tube, so that the column shoe moves down to the bottom of the tunnel, playing the role of lower support, and the upper hydraulic cylinder moves along the guide tube.
  • the guide tube moves upward, causing the top beam to move up and contact the top surface of the tunnel, which plays the role of top support; when the head of the transfer machine needs to move, the lower hydraulic cylinder moves up along the guide tube, the column shoe comes off the bottom, and the upper The hydraulic cylinder moves down and the top beam comes off the top, realizing the retraction of the leading bracket.
  • a self-moving mechanism or other power mechanism is used to drive the head of the reprinting machine to move, and the leading bracket will move with the head of the reprinting machine.
  • connecting seats are provided on the outside of the tank body on both sides of the reprinter motor, and at least two sets of connecting ear plates are provided on the connecting seats.
  • a mounting plate is provided on the guide tube at a position corresponding to the connecting seat.
  • Mounting ear plates are respectively provided on the board at positions corresponding to each set of connecting ear plates, and the mounting ear plates are fixedly connected to the corresponding connecting ear plates.
  • the guide cylinder and the reprinting machine are fixedly installed together through the ear plates between the connecting seat and the mounting plate, which facilitates the installation and removal of the advance bracket.
  • the connecting lug plate is provided with a vertical long circular hole
  • the mounting lug plate is provided with a circular fixing hole
  • the mounting lug plate and the corresponding connecting lug plate are fixedly connected through a pin.
  • the fixing hole for mounting the ear plate is not located at the lowermost end of the oblong hole connecting the ear plate.
  • the fixing hole on the mounting ear plate is not at the lowest end of the long round hole of the connecting ear plate, so that when the column shoe is connected to the bottom, the transfer machine will not bear the force of the upper and lower columns of the leading bracket.
  • the supporting force is conducive to the stability of the leading bracket during support.
  • a front beam is hinged at the front end of the roof beam
  • a guard plate is hinged at the front end of the front beam
  • a first mounting seat is provided at the lower part of the roof beam close to the front beam
  • a first mounting seat is provided at the lower part of the front beam close to the roof beam.
  • There is a second mounting seat the bottom end of the front beam jack is hinged with the first mounting seat, and the front end of the telescopic rod of the front beam jack is hinged with the second mounting seat; there is a third mounting seat at the lower part of the guard plate close to the front beam.
  • the bottom end of the support jack is hinged with the second mounting base, and the front end of the telescopic rod of the support jack is hinged with the third mounting base.
  • a spherical universal joint is provided at the bottom end of the lower hydraulic cylinder, and a connecting head matching the spherical universal joint is provided at the top of the column shoe.
  • the lower hydraulic cylinder uses a spherical universal joint to connect to the column shoe. When the column shoe is connected to the bottom, the angle at which the bottom of the column shoe contacts the bottom of the tunnel can be adjusted to adapt to the uneven bottom of the tunnel.
  • the top end of the upper hydraulic cylinder is hinged with the top beam through a pin.
  • the lower hydraulic cylinder moves down along the guide tube to connect the column shoe to the bottom, and the upper hydraulic cylinder moves up along the guide tube to connect the top beam to the top, and the leading bracket is in a supporting state;
  • the lower hydraulic cylinder moves up along the guide tube to make the column shoes come off the bottom.
  • the upper hydraulic cylinder moves down along the guide tube to make the top beam come off the top and the leading bracket is in the retracted state.
  • the head of the reprinting machine and the leading bracket in the present invention adopt an integrated design, which can effectively support the head part of the reprinting machine so that there is no empty top within the head of the reprinting machine; when the head of the reprinting machine moves, the leading bracket follows the reprinting
  • the machine heads move at the same time, and there is no need to set up a traditional moving frame, making the leading support compact in structure and occupying a small space in the tunnel; the movement relationship between the components of the leading support is simple, smooth operation, safe and reliable; the components of the leading support are It is light in weight and has low purchase cost; the transfer machine and the leading bracket are connected by connecting seats and ear plates, and the upper and lower columns are connected and guided by guide tubes, making the supporting and retracting process of the leading bracket easy to operate and highly efficient.
  • Figure 1 is a schematic structural diagram of an integrated leading bracket for the head of a transfer machine according to the present invention
  • Figure 2 is a schematic diagram of the advance bracket structure in the support state
  • Figure 3 is a schematic structural diagram of the guide tube part in Figure 2;
  • Figure 4 is a schematic diagram of the structure of the advance bracket when the transfer machine is moving
  • FIG. 5 is a schematic structural diagram of the roof beam, front beam, and guard panel parts
  • Figure 6 is a side structural schematic diagram of the connection position between the guide cylinder and the transfer machine
  • Figure 7 is an enlarged view of part A in Figure 6;
  • Figure 8 is a schematic structural diagram of the top view of the connection position between the connecting base and the mounting plate
  • Embodiment 1 An integrated leading bracket for the head of the reprinting machine, see Figures 1 to 8, including a top beam 1, and vertical brackets are respectively provided below the top beam 1 at the front and rear sides of the reprinting machine 21 motor.
  • the guide tube 2 is provided with column shoes 3 below the guide tube 2, and a transverse fixed plate 4 is provided in the middle of the guide tube 2.
  • An upper column is provided above the fixed plate 4 in the guide tube 2, and the upper column includes The upper hydraulic cylinder 5 and the upper movable column 6 located in the upper hydraulic cylinder 5, the upper end of the upper hydraulic cylinder 5 is hinged with the top beam 1, and the lower end of the upper movable column 6 is fixedly connected to the top surface of the fixed plate 4; the upper hydraulic The cylinder 4 moves in the guide tube 2 and is used to drive the top beam 1 to move up and down.
  • a lower column is provided in the guide cylinder 2 below the fixed plate 4.
  • the lower column includes a lower hydraulic cylinder 7 and a lower movable column 8 located in the lower hydraulic cylinder 7.
  • the lower end of the lower hydraulic cylinder 7 is connected to the column shoe 3 Hinged, the top of the lower movable column 8 is fixedly connected to the bottom surface of the fixed plate 4; the lower hydraulic cylinder 7 moves in the guide tube 2 to drive the column shoe 3 to move up and down.
  • a spherical universal joint 20 is provided at the bottom end of the lower hydraulic cylinder barrel 7 , and a connecting head matching the spherical universal joint 20 is provided at the top of the column shoe 3 .
  • the top end of the upper hydraulic cylinder 5 is hinged with the top beam 1 through a pin.
  • a connecting seat 9 is provided on the outside of the tank body on both sides of the motor of the reprinter 21 respectively. At least two sets of connecting ear plates 10 are provided on the connecting seat 9.
  • a mounting plate is provided on the guide tube 2 at a position corresponding to the connecting seat 9. 11.
  • Mounting ear plates 12 are provided on the mounting plate 11 at positions corresponding to each set of connecting ear plates 10. The mounting ear plates 12 are fixedly connected to the corresponding connecting ear plates 10.
  • a vertical oblong hole is provided on the connecting ear plate 10, and a circular fixing hole is provided on the mounting ear plate 12.
  • the mounting ear plate 12 and the corresponding connecting ear plate 10 are fixedly connected through a pin.
  • the fixing hole for mounting the ear plate 12 is not located at the lowermost end of the oblong hole connecting the ear plate 10 .
  • a front beam 13 is hinged at the front end of the roof beam 1, and a guard plate 14 is hinged at the front end of the front beam 13.
  • a first mounting seat 15 is provided at a lower part of the roof beam 1 close to the front beam 13, and a first mounting seat 15 is provided at the lower part of the front beam 13 close to the front beam 13.
  • the position of the top beam 1 is provided with a second mounting seat 16, the bottom end of the front beam jack 18 is hinged with the first mounting seat 15, and the front end of the telescopic rod of the front beam jack 18 is hinged with the second mounting seat 16; at the lower part of the guard plate 14
  • a third mounting base 17 is provided near the front beam 13 .
  • the bottom end of the supporting jack 19 is hinged with the second mounting base 16 .
  • the front end of the telescopic rod of the supporting jack 19 is hinged with the third mounting base 17 .
  • the lower hydraulic cylinder 7 moves down along the guide tube 2 to connect the column shoe 3 to the bottom, and the upper hydraulic cylinder 5 moves up along the guide tube 2 to connect the top beam 1 to the top, and the leading bracket is in supporting position. state; when the reprinter 21 moves, the lower hydraulic cylinder 7 moves up along the guide tube 2, so that the column shoe 3 comes off the bottom, and the upper hydraulic cylinder 5 moves down along the guide tube 2, so that the top beam 1 comes off the top, and the leading bracket is in Reclaim status.

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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)
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Abstract

一种用于转载机机头的一体式超前支架，包括顶梁（1），在顶梁（1）下方位于转载机（21）电机前后两侧的位置分别设置有竖向的导向筒（2），在导向筒（2）下方设有柱靴（3），在导向筒（2）的中部设有横向的固定板（4），在导向筒（2）内位于固定板（4）上方的位置设有上立柱，用于带动顶梁（1）上下移动；在导向筒（2）内位于固定板（4）下方的位置设有下立柱，用于带动柱靴（3）上下移动；该转载机机头和超前支架采用一体式设计，转载机机头移动时，超前支架跟随转载机机头同时移动，不再需要另外设置传统的移架机构，使得超前支架结构紧凑，占用巷道空间小，解决了现有技术中转载机机头处布置超前支架需要临时扩大巷道宽度的问题。

Description

用于转载机机头的一体式超前支架 技术领域
本发明涉及井工煤矿综采、综放工作面运输巷道支护设备技术领域，具体涉及一种用于转载机机头的一体式超前支架。
 背景技术
煤矿综采、综放工作面运输巷道的加强支护（含端头支护和超前支护）一直是影响煤炭安全、高效开采的重要环节，《煤矿安全规程》规定：采煤工作面所有安全出口与巷道连接处20m范围内，必须加强支护；《国家煤矿安监局关于加强煤矿冲击地压防治工作的通知》对于具有冲击地压规定矿井规定，有冲击危险的采煤工作面安全出口与巷道连接处超前支护范围不得小于70米，综采放顶煤工作面或具有中等及以上冲击危险区域的采煤工作面安全出口与巷道连接处超前支护范围不得小于120米，超前支护优先采用液压支架。
当超前支护范围要求较大时，转载机机头通常包含在内，然而转载机机头通常是整个转载机最宽的部位，对于宽度较小的运输巷道，转载机机头处通常无法布置常规的两架一组式、单列式或者其他形式的超前支架，仍然采用单体液压支柱进行加强支护，无法满足各级行管部门对超前支护的相关规定以及智能化工作面建设的要求。目前，针对转载机机头处的超前支护，除加大巷道宽度以布置超前支架外，暂无其他可行的技术方案。
 发明内容
针对现有技术中宽度较小、超前支护范围较长的运输巷道，转载机机头处往往由于宽度尺寸较大，通常无法布置超前支架，如果需要布置超前支架，往往需要临时扩大巷道宽度，从而造成生产周期长、误工作面正常推进、巷道掘进成本高、巷道维护困难的问题，本发明提供了一种用于转载机机头的一体式超前支架，其与转载机机头一体设置，结构紧凑、占用巷道空间小，解决了以上技术问题。
为解决上述技术问题，本发明采用如下技术方案：
设计一种用于转载机机头的一体式超前支架，包括顶梁，在顶梁下方位于转载机电机前后两侧的位置分别设置有竖向的导向筒，在导向筒下方设有柱靴，在导向筒的中部设有横向的固定板，在导向筒内位于固定板上方的位置设有上立柱，上立柱包括上部液压缸筒和位于上部液压缸筒内的上部活柱，上部液压缸筒的上端与顶梁铰接，上部活柱的下端与固定板的顶面固定连接；上部液压缸筒在导向筒内移动，用于带动顶梁上下移动；
在导向筒内位于固定板下方的位置设有下立柱，下立柱包括下部液压缸筒和位于下部液压缸筒内的下部活柱，下部液压缸筒的下端与柱靴铰接，下部活柱的顶端与固定板的底面固定连接；下部液压缸筒在导向筒内移动，用于带动柱靴上下移动。
在上述技术方案中，在采煤工作过程中，超前支架处于支护状态，下部液压缸筒沿导向筒下移，使得柱靴下移到巷道底面，起到下部支撑的作用，上部液压缸筒沿导向筒上移，使得顶梁上移并接触到巷道顶面，起到顶部支护的作用；当转载机机头需要移动时，下部液压缸筒沿导向筒上移，柱靴脱底，上部液压缸筒下移，顶梁脱顶，实现了超前支架的收回，此时采用自移机构或其他动力机构带动转载机机头移动，超前支架即会跟随转载机机头一同移动。
优选的，在转载机电机前后两侧的槽体外侧分别设置有连接座，在连接座上设有至少两组连接耳板，在导向筒上对应于连接座的位置设置有安装板，在安装板上对应每组连接耳板的位置分别设置有安装耳板，安装耳板与对应的连接耳板之间固定连接。导向筒与转载机之间通过连接座、安装板之间的耳板固定安装在一起，便于超前支架的安装和拆卸。
优选的，在连接耳板上开设有竖向的长圆孔，在安装耳板上开设有圆形的固定孔，安装耳板与对应的连接耳板之间通过销轴固定连接。
优选的，安装耳板的固定孔不处于连接耳板的长圆孔最下端的位置。安装耳板和连接耳板通过销轴连接时，安装耳板上的固定孔不处于连接耳板的长圆孔最下端的位置，使得在柱靴接底时，转载机不承受超前支架上下立柱的支撑力，有利于超前支架在支护时的受力稳定。
优选的，在顶梁的前端铰接有前梁，在前梁的前端铰接有护帮板，在顶梁下部靠近前梁的位置设有第一安装座，在前梁下部靠近顶梁的位置设有第二安装座，前梁千斤顶的底端与第一安装座铰接，前梁千斤顶的伸缩杆前端与第二安装座铰接；在护帮板下部靠近前梁的位置设有第三安装座，护帮千斤顶底端与第二安装座铰接，护帮千斤顶的伸缩杆前端与第三安装座铰接。
优选的，在下部液压缸筒的底端设有球形万向节，在柱靴的顶端设有与球形万向节相匹配的连接头。下部液压缸筒采用球形万向节与柱靴连接，可以在柱靴接底时，调整柱靴底部接触巷道底面的角度，以适应巷道底面不平整的情况。
优选的，上部液压缸筒的顶端通过销轴与顶梁铰接。
优选的，在进行采煤工作时，下部液压缸筒沿导向筒下移，使柱靴接底，上部液压缸筒沿导向筒上移，使顶梁接顶，超前支架处于支护状态；
在转载机移动时，下部液压缸筒沿导向筒上移，使柱靴脱底，上部液压缸筒沿导向筒下移，使顶梁脱顶，超前支架处于收回状态。
本发明的有益效果在于：
本发明中的转载机机头和超前支架采用一体式设计，能够对转载机机头部分进行有效支护，使得转载机机头范围内无空顶；转载机机头移动时，超前支架跟随转载机机头同时移动，不再需要另外设置传统的移架机构，使得超前支架结构紧凑，占用巷道空间小；超前支架的各部件之间运动关系简单，运行通畅，安全可靠；超前支架的各部件重量轻，采购成本低；转载机和超前支架之间采用连接座和耳板进行连接，上下立柱采用导向筒连接和导向，使得超前支架的支护和收回过程易于操作、效率高。
 附图说明
图1为本发明用于转载机机头的一体式超前支架的结构示意图；
图2为支护状态下的超前支架结构示意图；
图3为图2中导向筒部分的结构示意图；
图4为转载机移动状态下的超前支架结构示意图；
图5为顶梁和前梁、护帮板部分的结构示意图；
图6为导向筒与转载机之间连接位置处的侧视结构示意图；
图7为图6中的A部放大图；
图8为连接座与安装板之间连接位置处俯视结构示意图；
图中标号：1顶梁，2导向筒，3柱靴，4固定板，5上部液压缸筒，6上部活柱，7下部液压缸筒，8下部活柱，9连接座，10连接耳板，11安装板，12安装耳板，13前梁，14护帮板，15第一安装座，16第二安装座，17第三安装座，18前梁千斤顶，19护帮千斤顶，20球形万向节，21转载机。
 实施方式
下面结合实施例来说明本发明的具体实施方式，但以下实施例只是用来详细说明本发明，并不以任何方式限制本发明的范围。在以下实施例中所涉及的设备元件如无特别说明，均为常规设备元件。
实施例1：一种用于转载机机头的一体式超前支架，参见图1-图8，包括顶梁1，在顶梁1下方位于转载机21电机前后两侧的位置分别设置有竖向的导向筒2，在导向筒2下方设有柱靴3，在导向筒2的中部设有横向的固定板4，在导向筒2内位于固定板4上方的位置设有上立柱，上立柱包括上部液压缸筒5和位于上部液压缸筒5内的上部活柱6，上部液压缸筒5的上端与顶梁1铰接，上部活柱6的下端与固定板4的顶面固定连接；上部液压缸筒4在导向筒2内移动，用于带动顶梁1上下移动。
在导向筒2内位于固定板4下方的位置设有下立柱，下立柱包括下部液压缸筒7和位于下部液压缸筒7内的下部活柱8，下部液压缸筒7的下端与柱靴3铰接，下部活柱8的顶端与固定板4的底面固定连接；下部液压缸筒7在导向筒2内移动，用于带动柱靴3上下移动。在下部液压缸筒7的底端设有球形万向节20，在柱靴3的顶端设有与球形万向节20相匹配的连接头。上部液压缸筒5的顶端通过销轴与顶梁1铰接。
在转载机21电机前后两侧的槽体外侧分别设置有连接座9，在连接座9上设有至少两组连接耳板10，在导向筒2上对应于连接座9的位置设置有安装板11，在安装板11上对应每组连接耳板10的位置分别设置有安装耳板12，安装耳板12与对应的连接耳板10之间固定连接。
在连接耳板10上开设有竖向的长圆孔，在安装耳板12上开设有圆形的固定孔，安装耳板12与对应的连接耳板10之间通过销轴固定连接。安装耳板12的固定孔不处于连接耳板10的长圆孔最下端的位置。
在顶梁1的前端铰接有前梁13，在前梁13的前端铰接有护帮板14，在顶梁1下部靠近前梁13的位置设有第一安装座15，在前梁13下部靠近顶梁1的位置设有第二安装座16，前梁千斤顶18的底端与第一安装座15铰接，前梁千斤顶18的伸缩杆前端与第二安装座16铰接；在护帮板14下部靠近前梁13的位置设有第三安装座17，护帮千斤顶19底端与第二安装座16铰接，护帮千斤顶19的伸缩杆前端与第三安装座17铰接。
在进行采煤工作时，下部液压缸筒7沿导向筒2下移，使柱靴3接底，上部液压缸筒5沿导向筒2上移，使顶梁1接顶，超前支架处于支护状态；在转载机21移动时，下部液压缸筒7沿导向筒2上移，使柱靴3脱底，上部液压缸筒5沿导向筒2下移，使顶梁1脱顶，超前支架处于收回状态。
上面结合实施例对本发明作了详细的说明，但是所属技术领域的技术人员能够理解，在不脱离本发明宗旨的前提下，还可以对上述实施例中的各个具体参数进行变更，形成多个具体的实施例，均为本发明的常见变化范围，在此不再一一详述。

Claims (8)

  1.  一种用于转载机机头的一体式超前支架，其特征在于，包括顶梁，在顶梁下方位于转载机电机前后两侧的位置分别设置有竖向的导向筒，在导向筒下方设有柱靴，在导向筒的中部设有横向的固定板，在导向筒内位于固定板上方的位置设有上立柱，上立柱包括上部液压缸筒和位于上部液压缸筒内的上部活柱，上部液压缸筒的上端与顶梁铰接，上部活柱的下端与固定板的顶面固定连接；上部液压缸筒在导向筒内移动，用于带动顶梁上下移动；
    在导向筒内位于固定板下方的位置设有下立柱，下立柱包括下部液压缸筒和位于下部液压缸筒内的下部活柱，下部液压缸筒的下端与柱靴铰接，下部活柱的顶端与固定板的底面固定连接；下部液压缸筒在导向筒内移动，用于带动柱靴上下移动。
  2.  根据权利要求1所述的用于转载机机头的一体式超前支架，其特征在于，在转载机电机前后两侧的槽体外侧分别设置有连接座，在连接座上设有至少两组连接耳板，在导向筒上对应于连接座的位置设置有安装板，在安装板上对应每组连接耳板的位置分别设置有安装耳板，安装耳板与对应的连接耳板之间固定连接。
  3.  根据权利要求2所述的用于转载机机头的一体式超前支架，其特征在于，在连接耳板上开设有竖向的长圆孔，在安装耳板上开设有圆形的固定孔，安装耳板与对应的连接耳板之间通过销轴固定连接。
  4.  根据权利要求3所述的用于转载机机头的一体式超前支架，其特征在于，安装耳板的固定孔不处于连接耳板的长圆孔最下端的位置。
  5.  根据权利要求1所述的用于转载机机头的一体式超前支架，其特征在于，在顶梁的前端铰接有前梁，在前梁的前端铰接有护帮板，在顶梁下部靠近前梁的位置设有第一安装座，在前梁下部靠近顶梁的位置设有第二安装座，前梁千斤顶的底端与第一安装座铰接，前梁千斤顶的伸缩杆前端与第二安装座铰接；在护帮板下部靠近前梁的位置设有第三安装座，护帮千斤顶底端与第二安装座铰接，护帮千斤顶的伸缩杆前端与第三安装座铰接。
  6.  根据权利要求1所述的用于转载机机头的一体式超前支架，其特征在于，在下部液压缸筒的底端设有球形万向节，在柱靴的顶端设有与球形万向节相匹配的连接头。
  7.  根据权利要求1所述的用于转载机机头的一体式超前支架，其特征在于，上部液压缸筒的顶端通过销轴与顶梁铰接。
  8.  根据权利要求1所述的用于转载机机头的一体式超前支架，其特征在于，在进行采煤工作时，下部液压缸筒沿导向筒下移，使柱靴接底，上部液压缸筒沿导向筒上移，使顶梁接顶，超前支架处于支护状态；
    在转载机移动时，下部液压缸筒沿导向筒上移，使柱靴脱底，上部液压缸筒沿导向筒下移，使顶梁脱顶，超前支架处于收回状态。
PCT/CN2023/087622 2022-05-30 2023-04-11 用于转载机机头的一体式超前支架 WO2023231584A1 (zh)

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