• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention refers to a movable supporting frame for supporting the roof in underground cavities, in particular for securing the excavating edge when recovering the pillars in coal mining, comprising a cap (5) supported against a base frame (1) by means of hydraulically extendable props (3) and a lemniscate drive means (4), the props (3) being pivotally connected with the base frame (1) and with the cap (5). The props (3) are essentially perpendicularly oriented relative to stratification and are linked to the base frame (1) and to the cap (5) in a universally pivotably manner, noting that preferably four props are arranged at the corners of a rectangle as seen in a plan view. The lemniscate drive means (4) is connected with the base frame (1) for swivelling movement in transverse direction relative to the plane defined by the lemniscate guides (8, 9) and is adjustably supported against any swivelling movement and is connected with the cap (5) for universal swivelling movement. The cap (5) can be lowered into a transport position (5'') located below the lowest working position. One lemniscate guide (8) is pivotally linked to a length-adjustable directing strut (12) having its other end pivotally linked to a linking point (13) connected with the base frame (1), the length (b) of said directing strut being maintained unchanged within the operating range (a) of the supporting frame and being increased in transport position (5''). This allows to select a very low transport position without obstructing the operating positions defined by the lemniscate drive means (FIG. 1).
    公开号:SU1450755A3
    申请号:SU843822553
    申请日:1984-12-11
    公开日:1989-01-07
    发明作者:Цитц Альфред；Лерхбаум Карл；Тоферер Вернер；Зюсенбек Хайнрих
    申请人:Фоест-Альпине Аг (Фирма)；
    IPC主号:
    专利说明:


    The invention relates to slide bearing supports for roof support in underground workings, in particular, to prevent the occurrence of a line of collapse during the removal of pillars in reverse when mining coal.
    The goal of the introduction is to increase the versatility of the application both at low and at high altitudes.
    Figure 1 shows the mobile lining, side view; figure 2 - the same plan; on fig.Z - the same, cross section; Figures 4 through 6 show various forms of implementation of the guide brace.
    The support frame 1 is mounted on tracks-2. By means of hydraulic struts 3 installed in the four corners of the quadrilateral and on the lemniscate gear 4, it rests on top of 5 on the support frame. The hydraulic pillars 3 are supported on the support frame 1 by means of ball joints 6 and on the top 5 by means of ball joints 7 and therefore can be rotated in any direction from the vertical position. Since these pillars 3 are mounted vertically, with the horizontal movement of the top 5, which may occur as a result of the mountain roof moving, the vertical position from the top 5 to the supporting frame changes or
    changes only marginally. Racks 3 are usually equipped with an overload or impact valve. (Not shown)
    The lemniscate gear has an upper lemniscate hinge console 8 and a lower lemniscate hinge console - tu 9, which are connected to each other with the help of the hinge Yu; A guide brace 12 formed by a hydraulic cylinder is pivotally connected to the upper articulated console 8 in the assembly 11. The other end of the guide brace 12 is attached to the hinge assembly 13 connected to the supporting frame 1. The upper lemniscate hinged console with the help of a universal joint 14 is attached to the top 5 with the possibility of rotation in any direction, and the supporting frame I is attached to an articulated 15-3 diagonal swivel the frame 20 can be rotated around the axis 21 transversely to the plane of the lemniscate hinged cantilevers 8 and 9, which are wide and therefore are designed to provide lateral rigidity, the swinging frame 20 is also made to ensure m lateral stiffness. The hinge 10 is made with a double hinge and therefore also with lateral rigidity. The lemniscate hinge console 9 is also connected with a swivel frame 20 via a double hinge 22. All lemniscate gear
    4, together with the pivot frame 20, forms a block with lateral rigidity transversely to the plane of the lemniscale hinged cantilevers 8 and 9. This block is supported by hydraulic cylinders 23 and 24, which are pivotally attached to the pivot frame 20 at node 25 and to the support frame 1 at node 26, transverse to the plane of the lemniscate hinged consoles. Hydraulic cylinders 23 and 24 have overload valves (not shown) lemniscate gear 4 together with a pivot frame 20 can be limited to transversely transversely to the plane of lemniscate hinged consoles 8 and 9 when overloaded. Hydraulic cylinders 23 and 24 also have piping for supplying pressure medium with randomly serviced valves (not shown), in which, with an inclined under-grounding, the lemniscate transmission 4, together with the pivoting frame 20, can occupy an inclined position relative to the support frame 1. The mine support is shown in the highest Shem extended position. Top nk can be omitted by value. working range and. position 5 (Fig. 1). At the size of the section a, the length of the guide brace 12 must remain unchanged in order to ensure the vertical movement of the upper body through the lemniscate gear 4. In addition, the upper
    5 can be lowered to transport position 5, with the pillars 3 falling to position 3, and the lemniscale articulated arms 8 and 9 to positions 8 and 9. The guide brace 12 then goes to position 12, with the piston rod 27 moving to position 27.
    In the working range Q, the guide brace 12, which is complete as a piston-cylinder unit, must remain unchanged the same length b (Fig. 4-6).
    In the cylinder 28 (FIG. 4), the piston 29 with the piston brush 30 is directed to the piston-cylinder forming the guide brace 12 of the piston-cylinder unit. The left working cavity 31 is connected to the working cavity 32 of the measuring cylinder 33. The working cavity 32 is limited by the piston 34. The leftmost position of the piston 29 indicated by 29. The receiving volume of the working
    cavity 32 in the right position of the piston 34 corresponds to the displacement volume in the working cavity 31, when the nop-L shadow from the position indicated by the solid line 29 is transferred to position 29. By moving the procedure 34 to its extreme left position, the working cavity 31 fills the pressure medium with the incoming flow through the pipeline 35 and the piston from position 29 is transferred to position 29. In this middle position, the line 29 into the working cavities 31 and 36 closes the volume of the pressure medium. In this middle position, the distance between the pivot points 11 and 13 is IQ. In this position 1, the piston 29 is in the operating range O.
    0 An overload valve 37 is connected to the working cavity 31, and an operating cavity 36 is connected to the overload valve 38. When overloaded in one or the other direction, the pressure medium will
    5, the overload valve 37 or 38 is forced back into the tank (not shown), while in the other working cavity the pressure medium from the tank is sucked through the non-return valve 39 or 40. If the top to 5 is to be moved to the transport position 5, then the overload valve 38 opens, the pressure medium from the working cavity 36 returns to the reservoir, and through the non-return valve 40 flows into the working cavity 31, so that the length of 1 ° is increased by the maximum adjustable length. Piston 41
    Q (Fig. 5) is in the middle position in which the hinge weels 13 and And again have a distance of 1. The working cavities 31 and 36 are located on both sides of the piston 41. The position of the piston n is determined by means of a sensor 42 on the piston rod 30 and the sensing element 43. The pump 44 delivers the porous medium 36 into the working cavity 36 through conduit 45 and through non-returnable valve 46. The pump 44 is driven by the control device 47 until the sensitive element 43 shows the correct position of the piston. At the same time through the open
    g the overload valve 48 pressure medium may exit the working cavity 21. Then the overload valve 48 is closed and now functions to a greater extent as
    five
    0
    overload valve, K working. The overload valve 49 is also connected to the cavity 36. However, the piston can now move to the right or left in the working range Q only when an overload occurs, and the pressure medium through the non-return valve 50 or 46 can flow into the other working cavity, respectively. 5 to the transport position 5, then through the non-return valve 50, the medium flows into the cavity 31.
    Cylinder 51 (Fig. 6) is divided by a septum 52. In position 1, porgaen 53, which is connected via a piston rod 54 to the hinge assembly 11, adjoins the septum 52. The second piston 55, through the piston rod 56, is separated from the articulated joint 13 and adjacent to the wall 57 of the cylinder 51. The piston rod 56 loosely passes through the wall 57 of the cylinder. If an overload now occurs in the sense of reducing the distance, the piston 55 moves into the working cavity 58 and the pressure medium flows out through the overload valve 59. If an overload occurs in the sense of increasing porsche distance 53 is moved into the working cavity 60 and the pressure medium exits through the overload valve 61, and the pressure medium can enter the space between the partition 52 and the piston 53 through the non-return valve 62. If it is necessary, lower the top to the transport position 5, then the pressure head the medium through the non-return valve 62 is introduced into the cavity between the baffle 52 and the piston 53 so that the piston rod 54 is fully extended. An opening valve 63 is connected to the working cavity 58 in the direction towards the working cavity through which a pressure medium can be introduced in order to transfer the piston 55 to the left end position.
    权利要求:
    Claims (3)
    [1]
    1. Mobile roof support to maintain the roof in underground workings and to protect the collapse line during the excavation of pillars in reverse mining coal, containing the base and back, connected to each other by four hydraulic supports fixed
    5 0 5 o Q 5
    five
    0
    g
    on them using ball joints mounted at the corners of a rectangular base perpendicular to the plane of the latter, and lemniscated peg redac, pivotally connected to the base, can be rotated perpendicular to the plane of lemniscate gear elements and consisting of a cantilever pivotally connected to turn into any side Well, the upper end with the upper end, the lower end of which is pivotally attached to one of the ends of the rod, the second end of which is hinged to the base, the pressure line connected to the hydraulic legs, characterized in that, in order to increase the versatility of application, it is equipped with an installed perpendicular to the plane of the elements of the lemna skata and a pivot frame pivotally connected to the base, to which the second end of the helimpikskat transmission is pivotally attached, the console of which is additionally connected to the base The structure of the guide cylinder, in the cylinder of which there is a piston and two working chambers with safety valves, communicated with the pressure line with the possibility of maintaining without a change in the operating range and an increase in the transport position for. of the guideline hDroshshindra, one end of which is pivotally attached to the console, and the other is provided with a hinge, which is connected to the base by means of an additional hinge assembly, with the swiveling frame connected to the guide hydraulic cylinder, is made with lateral rigidity in the direction perpendicular to the plane elements of the lemniscate transmission, connected to the lemniscate transmission with ensuring lateral rigidity in the same plane and additionally hingedly connected to the base by means of e side of the transmission lemniskatnoy .- perpendicular to the plane of its elements backwater cylinders, the working chambers are communicated with the pressure line and have safety valves.
    [2]
    2. Mobile support according to claim 1, characterized in that the directional cylinder 1 of the hydraulic cylinder is provided with a measuring cylinder, wherein
    piston cavity communicated with each other. .
    [3]
    3. Mobile lining in PP.1 and 2, characterized in that
    the volume of the measuring cylinder is equal to the volume of the piston cavity nap-. equalizing cylinder with the middle position of the piston of the latter.
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    类似技术:
    公开号 | 公开日 | 专利标题
    SU1450755A3|1989-01-07|Self-advancing support for roof in underground workings
    US2833422A|1958-05-06|Telescopic boom
    EP0567218A1|1993-10-27|Telescopic arm assembly with two interconnected hydraulic activators for grab bucket excavator
    CA1101834A|1981-05-26|Drill boom arrangement
    US3236391A|1966-02-22|Counterweight system for tractors having side-mounted attachments
    US3966256A|1976-06-29|Tunneling equipment
    US3911686A|1975-10-14|Mineral mining installations
    PL122504B1|1982-07-31|Roof support for an underground mine
    US4039095A|1977-08-02|Swing mechanism for backhoe
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    US4462637A|1984-07-31|Control apparatus for inclination of longwall guide
    US3448584A|1969-06-10|Hydraulic casing units for mine workings
    US4186969A|1980-02-05|Apparatus for controlling the position of a mining machine
    US3476193A|1969-11-04|Drill boom with parallel motion linkage means
    US4155676A|1979-05-22|Hydraulic walking roof-support frame
    AU740995B2|2001-11-22|Anchor boring and setting device
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    SU1528326A3|1989-12-07|Powered hydraulic support for sets of coal-winding faces
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    US3991579A|1976-11-16|Self advancing support chocks
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    SU1714116A1|1992-02-23|Stowage unit
    GB2032816A|1980-05-14|Annular movement mechanism for drilling machine
    RU1790682C|1993-01-23|Shield powered support in mining steeply dipping and inclined beds
    JP2906734B2|1999-06-21|Excavator leader support device
    同族专利:
    公开号 | 公开日
    GB8430640D0|1985-01-16|
    DE3444187C2|1986-09-11|
    US4613256A|1986-09-23|
    FR2560284A1|1985-08-30|
    ATA445883A|1985-04-15|
    AT379215B|1985-12-10|
    GB2151684A|1985-07-24|
    DE3444187A1|1985-06-27|
    ZA849299B|1985-10-30|
    GB2151684B|1987-06-24|
    IN161839B|1988-02-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2657028A|1949-06-15|1953-10-27|Joy Mfg Co|Walking jack|
    DE2557255C2|1975-12-19|1984-07-26|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Striding expansion unit, especially for use in thick seams|
    DE2616964A1|1976-04-17|1977-10-27|Hemscheidt Maschf Hermann|Mine support linkage between roof and floor members - acts with telescopic ram to ensure balance between forward forces|
    DE2622207C2|1976-05-19|1981-09-17|Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum|Shield support frame|
    DE2622208C2|1976-05-19|1983-10-20|Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum|Extension trestle|
    DE2729564C2|1977-06-30|1979-08-09|Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal|Lemniscate guide for hydraulic support frames|
    GB1600520A|1977-06-30|1981-10-14|Hemscheidt Maschf Hermann|Hydraulic self-advancing roofsupport frame|
    DE2750852B1|1977-11-14|1979-03-29|Hemscheidt Maschf Hermann|Device for stabilizing the hanging end cap of a hydraulic support frame|
    AT350991B|1977-11-14|1979-06-25|Voest Ag|SHIELD STRUCTURE|
    DE2840835C2|1978-09-20|1986-03-06|Klöckner-Becorit GmbH, 4620 Castrop-Rauxel|Shield support frame for underground longwall mining|
    DE2901255C2|1979-01-13|1983-01-05|Klöckner-Becorit GmbH, 4620 Castrop-Rauxel|Shield support frame|
    FR2461094B1|1979-07-06|1983-02-18|Charbonnages De France|
    DE3004266A1|1980-02-06|1981-08-13|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Striding mine support unit lemniscate gear - has two units coupling guide rods linked in coupling hinge|
    DE3012605C2|1980-04-01|1989-04-13|Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De|DE3543060C1|1985-12-05|1987-02-05|Hemscheidt Maschf Hermann|Mobile support structure|
    GB8722095D0|1987-09-19|1987-10-28|Dowty Mining Equipment Ltd|Mounting ancillary equipment|
    DE3923376C1|1989-07-14|1990-07-05|Paurat Gmbh, 4223 Voerde, De|Self propelling machine for mining coal - comprises platform supported by vertical hydraulic jacks and raking jacks|
    DE4010945B4|1990-04-05|2005-04-07|Adam Opel Ag|Elastic sealing strip|
    AT397286B|1990-09-26|1994-03-25|Voest Alpine Bergtechnik|SUPPORT BRACKET|
    US5584611A|1994-11-22|1996-12-17|Long-Airdox|Roof support for underground excavations|
    CN103206232B|2013-03-27|2015-02-11|山西东华机械有限公司|Synchronous pre-support and anchorage device for follow-up heading machines|
    CN103147780B|2013-03-27|2015-02-11|山西东华机械有限公司|Pre-support device|
    US10710420B2|2016-10-04|2020-07-14|Jack Akins|Jackknife prevention device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT0445883A|AT379215B|1983-12-20|1983-12-20|LOCKING RACK|
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