• 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:
    1522758 Mine roof supports VEREINIGTE OESTERREICHISCHE EISEN UND STAHLWERKE ALPINE MONTAN AG 1 Sept 1976 [9 Sept 1975] 36140/76 Heading F1D In a mine roof support which comprises inner and outer tubular members 5, 4, Fig. 2, a relief valve is located outside the member 4 and is mounted on a housing 16 which communicates with a working chamber 13 through an orifice 15. The inner member 5 has a sealing ring 9 which slides over and substantially closes the orifice 15 when the support contracts, thus damping the end of the stroke.
    公开号:SU712038A3
    申请号:SU762393549
    申请日:1976-09-03
    公开日:1980-01-25
    发明作者:Зиготт Зигфрид；Зюссенбек Хайнрих；Зибенхофер Готтфрид；Цитц Альфред
    申请人:Ферайнигте Эстеррайхише Айзен-Унд Штальверке-Альпине Монтан Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) HYDRAULIC DRILLING RACK
    The invention relates to the means of Kpeitj laziness of clearing workings in underground mining of minerals and can be used in mechanized rooftops. Known hydraulic mine stand. ka, including a piston rod and a cylinder, the working chamber of which is connected to the device. ZOLA to protect the rack from water hammer {1. The disadvantages of such a device is low reliably. There is a work of the rack design complexity. The closest to the technical essence and the achieved result to the proposed is a hydraulic rudder, including a cylinder, a plunger, the internal cavity of which is connected to the working chamber of the cylinder, a safety valve located on the outer side of the stand, connected to the working chamber, and located at the lower end tsilddra hole, the diameter of which is not less than the conditional passage of the safety valve, moreover, the hole in the fully assembled position of the rack is blocked portion of the lower plunger .kontsa strut 2. However, such a device is not sufficiently reliable, since the mountain impact bolschoy dynamic loads occur. The aim of the invention is to improve the reliability of the rack by reducing the dynamic loads during rock bursts. This is achieved by the fact that the stand is provided with a pocket, fixed on the outer side of its cylinder and connected to the bottom with a hole in the cylinder, and its upper part with a safety valve. In FIG. 1 mechanized roof support section; in fig. 2 - stand, longitudinal section. The mechanized lining section has top to 1, base 2 and four hydraulic legs 3. Hydraulic column 3 includes cylinder 4 and plunger 5. At the upper end of cylinder 4, sleeve 6 is installed with sealing rings 7 and 8. Ring 9 with sealing rings 10 and the bottom of the plunger 5 are mounted. II on its outer surface: nosti. On the ring 9 on top there is a section of pipe 12 limiting the extension of the plunger 5. The plunger 5 has no bottom from the bottom and thus the cavity 13 of the plunger 5 is directly connected to the working chamber 14 of the standoff. Due to the large volume, the elasticity of the hydraulic column is ensured. In the lower part of the cylinder 4 there is a hole 15 with a large flow area that connects the working chamber 14 to the working chamber 16 welded to the body of a hydrocall. To the cylinder 4 from the bottom, when the bottom is boiled. 17. The hydraulic column is locked when the ring 9 overlaps the lower edge 18 of the hole 15. In the upper part of the car: mana 16, a thread 19 is provided for a sub-coupling bolt of the safety valve 20 on which the valve spring housing 21 is mounted on top. . Hydraulic miner rack works as follows.
    When lowering the plunger 5, the ring 9 in the lowest position overlaps the hole 15, while the liquid is throttled through the hole, thereby ensuring a smooth lowering of the plunger and in the final position oi does not hit the bottom 17.
    Since in the extreme lower position of the plunger 5 the seal 11 is above the orifice 15, the orifice does not close tightly, although when it is blocked by the ring 9 and the lower edge 18 of the orifice, the hydroresistance is blocked.
    Due to the presence of the pocket 16, there is free access to the safety valve 20. which is installed at the top of the pocket.
    权利要求:
    Claims (2)
    [1]
    1. The patent of Germany No. 1000315, cl. 5 From 15/44, published. 09/29/60.
    [2]
    2. Brook Ya. S. et al. Coal-mining complex KM-87DN. M., Nedra, 1975, p. 17-20 (prototype).
    17
    ig.2
    类似技术:
    公开号 | 公开日 | 专利标题
    SU712038A3|1980-01-25|Hydraulic mine support
    US3426649A|1969-02-11|Multistage hydraulic mine prop
    CN201513184U|2010-06-23|Single hydraulic prop capable of prevent valve from flying out
    CN204267061U|2015-04-15|For the compressing cylinder that allows of anchor pole and anchor cable
    GB1190943A|1970-05-06|Improvements relating to Hydraulic Shock Absorbers
    CN205638502U|2016-10-12|Floated hydraulic column
    US4236850A|1980-12-02|Shield timbering frame for timbering mines
    CN208858661U|2019-05-14|A kind of lifting special piston cylinder
    GB1437071A|1976-05-26|Telescopic props
    CN211573552U|2020-09-25|Coal mine supporting equipment
    CN102242606A|2011-11-16|Hydraulic pressurizer
    SU1063985A2|1983-12-30|Well cutting-off arrangement
    CN201155329Y|2008-11-26|Novel suspending strut rod
    CN107355243A|2017-11-17|A kind of suspended type hydraulic vertical prop
    CN201535171U|2010-07-28|Injection type individual hydraulic prop
    GB1081018A|1967-08-31|Hydro-pneumatic shock absorbers
    GB1209575A|1970-10-21|Improvements in or relating to telescopic shock absorbers
    CN105525932B|2019-05-17|Anti-block mine individual hydraulic prop
    SU400690A1|1973-10-01|HYDRAULICS
    SU1555507A1|1990-04-07|Hydraulic prop of power support prop
    SU1469164A1|1989-03-30|Hydraulic prop for power support
    SU85636A1|1949-11-30|Hydraulic manual jack for installing sliding metal mines
    CN206769930U|2017-12-19|It is a kind of that there is the support protection mechanism for preventing tunnel perimeter convergence and vault sinking
    CN2184085Y|1994-11-30|Individual hydraulic prop
    RU206482U1|2021-09-14|SHAFT HYDRAULIC RACK
    同族专利:
    公开号 | 公开日
    ZA764944B|1977-07-27|
    DE2636791A1|1977-03-17|
    PL108898B1|1980-05-31|
    IN144129B|1978-03-25|
    FR2323866A1|1977-04-08|
    ATA694775A|1977-02-15|
    JPS562600B2|1981-01-20|
    GB1522758A|1978-08-31|
    DE2636791C3|1985-02-07|
    US4404893A|1983-09-20|
    ZA764943B|1977-07-27|
    AT339237B|1977-10-10|
    JPS5245506A|1977-04-11|
    DE2636791B2|1978-05-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CH92916A|1920-10-13|1922-02-16|W H Dorman & Co Ltd|Shoring column for tunnels, mines etc.|
    GB290688A|1926-11-22|1928-05-22|Henry Chipman Miller|Improvements in and connected with hydraulic and other fluid pressure jacks|
    US2139185A|1936-08-12|1938-12-06|Teves Kg Alfred|Pressure actuated piston lock release|
    DE1063101B|1956-02-20|1959-08-13|Gutehoffnungshuette Sterkrade|Hydraulic pit ram|
    DE1000315B|1956-03-23|1957-01-10|Hermann Schwarz K G|Multi-part hydraulic support element for excavation work|
    BE560243A|1956-08-25|
    BE563275A|1956-12-27|
    GB844137A|1957-11-15|1960-08-10|Nicolas Joseph Rutigliano|Improvements relating to telescopic props or supports|
    NL251933A|1959-07-03|
    BE607500A|1960-09-02|
    US3138066A|1961-10-27|1964-06-23|Phil Wood Ind Ltd|Cushioned-stroke reciprocatory hydraulic motor|
    DE1191776B|1962-04-09|1965-04-29|Kloeckner Werke Ag|Hydraulic pit ram|
    US3147671A|1962-12-04|1964-09-08|Gen Motors Corp|Hydraulic actuator|
    GB1050951A|1963-01-26|
    US3249018A|1963-07-17|1966-05-03|Ellis Fluid Dynamics Corp|Fluid motor|
    DE1932212U|1965-03-05|1966-02-10|Gewerk Eisenhuette Westfalia|DOUBLE EXTENDABLE HYDRAULIC PIT STAMP.|
    FR1492817A|1965-12-22|1967-08-25|Improvements to relief valves and caving devices for hydraulic mine props|
    US3559538A|1968-12-23|1971-02-02|Borg Warner|Actuator|
    DE2239680A1|1971-10-23|1973-05-03|Kopalnia Wegla Kamiennego Szom|MECHANIZED PIT CONSTRUCTION|HU183739B|1981-12-15|1984-05-28|Tatabanyai Szenbanyak|Hydraulic cylinder of combination operation particularly prop|
    ZA828996B|1982-12-07|1983-09-28|Bochumer Eisen Heintzmann|Hydraulic prop|
    JPH0651564U|1992-12-22|1994-07-15|珍治 三木|Shaft coupling|
    US5584611A|1994-11-22|1996-12-17|Long-Airdox|Roof support for underground excavations|
    GB2329428A|1997-09-20|1999-03-24|Joy Mining Machinery Limited|Improvements in and relating to a hydraulic control system|
    CN102444415B|2010-10-14|2014-07-02|卡特彼勒（郑州）有限公司|Tip bracket for solid filling|
    CN103362524B|2013-08-03|2015-06-10|刘立起|Drum type boosting multi-ring composite sealing handle body|
    CN106437809B|2016-11-24|2018-08-03|安徽理工大学|It is classified release hydraulic support and hydraulic support control method|
    CN106401634B|2016-11-24|2018-06-29|安徽理工大学|A kind of front and rear column split release hydraulic support|
    WO2018094655A1|2016-11-24|2018-05-31|安徽理工大学|Hydraulic support with staged pressure relief and method for controlling same|
    US10774642B1|2019-05-05|2020-09-15|Liaoning University|Hydraulic support unit and hydraulic support for anti-rock burst roadway|
    CN111502717A|2019-12-30|2020-08-07|山东塔高矿业机械装备制造有限公司|Advanced support device and method for roadway and application of advanced support device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT694775A|AT339237B|1975-09-09|1975-09-09|HYDRAULIC PIT STAMP|
    [返回顶部]