• 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:
    A hydraulic ram for use as an advance ram in mining operations has a plurality of permanent magnets embedded in its piston rod. At least one sensor is associated with a guide bush fixed to the piston rod end of the cylinder of the ram. The or each sensor is accommodated within a respective pocket formed in the guide bush. The pocket(s) can be closed off by a detachable closure member.
    公开号:SU1386036A3
    申请号:SU833661155
    申请日:1983-11-05
    公开日:1988-03-30
    发明作者:Плестер Карл-Хайнц；Реддинг Клаус-Дитер；Хессель Хайнц
    申请人:Геверкшафт Эйзенхютте Вестфалия (Фирма)；
    IPC主号:
    专利说明:

    2S
    00
    00
    O5
    00 O5
     cm
    The invention relates to advancing hydraulic cylinders and can be used in mechanized roof supports used in cleaning holes.
    The aim of the invention is to improve reliability, improvement. protection from external influences and facilitate replacement during repair.
    Fig. 1 shows a part of a hydraulic cylinder in the area of the rod, side view, with a partial section; in fig. 2 is a section A-A in FIG. one.
    The hydraulic cylinder is intended for shifting the transport or mining installation in the clearing forks during excavation by the underground method and can be an integral part of the walking support of the mechanized support. It consists of a cylinder body 1 and a rod 2, the piston of which is housed in the cylinder body. At the end of the cylinder body 1, on the side of the stem, there is a guide sleeve 3, the external thread 4 of which is screwed onto the internal thread at the end of the cylindrical body 1 of the cylinder. The guide bushing 3, the guide rod 2, has a piston rod seal and a grain cleaner. In this case, the rod has a system of magnets with two rows of permanent magnets.
    The rows of magnets are displaced relative to each other by 90 in the direction of the circumference of the rod 2 and have several permanent magnets located with a given interval in the direction of the axis of the piston rod 2. In FIG. 2 shows in dotted line two permanent magnets 5 which are located in metal housings 6 located in the radial holes of the rod 2 and set there with tension, with the metal cases 6 limited by the round surface of the rod 2.
    The guide bushing 3 has a reinforced flange 7, which is located in front of a portion of the cylindrical tube of the cylinder body 1 on the stem side. To fix the guide sleeve 3 in a predetermined angle of rotation, a prismatic key 8 is provided on the cylinder body 1, which is detachably held in a groove 9, wound on the outer circumference of the flange 7, using a screw 10 and engages in the axial groove t1 formed on the end of the body 1 cylinder.
    0 5 o

    five
    with
    five
    The flange 7 of the guide bushing 3 has a non-circular configuration, it has radial protrusions above the cylinder body 1 of the protrusion 12, in which there are two blind holes (receiving pockets) 13, open to the side of the rod, in which the magnetic switch is placed, preferably an electromagnetic relay or proximity switch. The receiving pockets 13 are displaced one relative to the other by 90 ° in the direction of the circumference of the rod 2 So that the magnetic switches 14 in them are aligned with both rows of magnets 5. The prismatic key 8 ensures accurate alignment of the switches 14 with respect to both rows of magnets.
    Both of the receiving pockets 13 are open in direction 15 to the stem 2, so that the switches 14 are located close to the stem 2. On the side of the outer circumference of the flange 3 are receiving pockets
    13 are closed. On the side open to the end face 16, the receiving pockets 13 are closed with a detachable locking element consisting of a cap 17, the configuration of which corresponds to the configuration of the flange 7. The cover 17 is installed by means of screws 18 on the flange 7 with a gasket in the form of a flat seal 19.
    When the key 17 is open, the switches 14 from the side of the rod 2 in the direction of the arrow 20 are inserted into the receiving pockets 13. The configuration of the switches 14 corresponds basically to the configuration of the receiving pockets 13. The latter have a fastening device for the switches 14, which consists of a rear cut 21 at the bottom of the receiving pockets 13 in the form of a T-shaped groove.
    The switches 14 have ribbed tips 22 that enter the rear notches (grooves) 21, with the result that the position of the proximity switches is securely fixed.
    On the flange 7 of the guide bushing 3 there are recesses for conduit (guide channels) 23, in which there are electrical connecting wires 24 of both switches
    14 and extending from the receiving pockets 13 to the common lead of the 25 wires on the outer circumference of the flange 7. The conduit 23 consists of grooves.
    located on the end surface 16 of the flange 7 and are closed with a hook 17. On the radial flange nozzle of the flange 7, there is an axial bore 26 forming the lead entry 25, into which the tubular coupling 27, to which the electrical connection cable is connected, is screwed into the hose. the sheath of which is located connecting wires 23 and 24.
    When open, the cap 20 of the fin 22 of the proximity switches 14 on the side of the piston rod in the direction of the arrow 20 are inserted into the rear notches 21 of the receiving pocket 13, and at the same time the connecting wires 24 are inserted into the conduit 23, resulting in the electrical connection of the switches 14 approximations with the introduction of 25 wires and coupling fittings 27 there. Krishka 17 is installed with screws 18 on the flange 7 with a gasket in the form of a flat seal 19, as a result of which the receiving pockets 13 and conduit 23 are closed Ayuts
    Only one receiving pocket or more than two receiving pockets for switches 14 or other manipulator or switching bodies can be positioned on the flange 7 of the guide sleeve 3. The receiving pockets 13 may have larger dimensions in the direction of the circumference of stem 2 than in the direction radial with respect to the stem, so that small changes in the angle of rotation of the piston rod 2 relative to the cylinder body 1 do not affect the reliability of switching. Otherwise, due to the connection with the connecting piece, the rod 2 is protected from excessive rotational movements relative to the body 1 of the cylinder. A system of magnets may also consist of only one row of permanent magnets or of more than two rows of permanent magnets. In addition, instead of one or several rows of magnets, it is possible to place only one permanent magnet or two permanent magnets on the rod 2, the latter, in particular, when only one extreme indication is required indicating the full forward or reverse stroke of the rod 2 .
    Q
    15 20 25
    thirty
    from 40 45
    50
    five
    权利要求:
    Claims (6)
    [1]
    1. The hydraulic cylinder advancing the working mechanisms, in particular, in the cleaning holes, contains a cylinder and a piston with a rod installed in it, bodies with magnets placed in them, mounted in the radial holes of the rod, a magnetically controlled switch with elec- tro wires, on the cylinder guide bushing with the possibility of interaction with magnets, characterized in that, in order to increase reliability in operation, to improve protection against external influences and to facilitate replacement during repair, the guide sleeve is completed and with a flange having a protrusion with a blind hole for the magnetic switch open to the side of the rod, a guide channel for the electric wires of the magnetic switch connected to the blind hole and an axial hole formed in the flange, wherein the guide sleeve is provided with a lid mounted above the blind hole, and is provided with a means of mounting the switch.
    [2]
    2. The hydraulic cylinder according to claim 1, wherein the mounting means for the switch is made in the form of locking grooves, which are made from the side of the blind hole in which the switch is mounted.
    [3]
    3.Hydrotsilindr on PP. 1 and 2, which is characterized by the fact that the flange of the guide bushing is made with a protrusion radially located above the cylinder, which is made with a blind hole open toward the stem,
    [4]
    4.Hydrotsilindr on PP. 1-3, characterized in that the cover is located above the guide channel and is shaped to fit the flange.
    [5]
    5.Hydrotsilnndr on PP. 1-4, which is characterized by the fact that the flange is provided with a coupling mounted in its axial bore.
    [6]
    6.G cylinder on the PP. 1-5, which is associated with the fact that the flange is made with an additional protrusion, having a blind hole, and an additional guide channel for the electric wires, through which the blind hole communicates with the axial hole, with both blind holes
    the holes are turned 90 relative to each other and closed with a common key,
    7. 1Htsrotsilindr on PP. 1-6, which means that axial grooves are made on the external surfaces of the flange and the cylinder body.
    their ends, and the guide sleeve is attached to the cylinder body by means of a prismatic pin installed in the axial grooves of the flange and the cylinder with the possibility of fixation by means of a screw placed in the holes made in the rod and the guide sleeve.
    11 8 10 Oe
    Fi8.1
    类似技术:
    公开号 | 公开日 | 专利标题
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    SU631801A1|1978-11-05|Batchmeter
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    US3101389A|1963-08-20|Divided electrical insulator
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    同族专利:
    公开号 | 公开日
    GB2129879B|1987-05-20|
    US4549469A|1985-10-29|
    AU563832B2|1987-07-23|
    GB2129879A|1984-05-23|
    GB8328197D0|1983-11-23|
    FR2535785B1|1988-04-01|
    DE3241237A1|1984-05-10|
    AU2058983A|1984-05-17|
    FR2535785A1|1984-05-11|
    BE898177A|1984-03-01|
    ZA838232B|1984-06-27|
    DE3241237C2|1985-10-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3364361A|1968-01-16|Bosch Gmbh Robert|Piston controlled impulse generating arrangement|
    NO123671B|1968-12-30|1971-12-27|Norsk Hydro Verksteder A S|
    US3956973A|1972-07-11|1976-05-18|Basic Aluminum Castings Company|Die casting machine with piston positioning control|
    DE2348066A1|1973-09-25|1975-03-27|Schloemann Siemag Ag|Hydraulic cylinder with piston position determining device - piston rod used in dosing pumps has inlay of material different to that of rod|
    JPS562883B2|1975-04-04|1981-01-22|
    FR2339766B1|1976-02-02|1980-06-27|Polymatic Sa|
    DE2855681A1|1978-12-21|1980-06-26|Kracht Pumpen Motoren|Fluid operated drive cylinder - includes recesses extending over measuring range in surface of piston rod|
    DE2917609C2|1979-05-02|1985-12-19|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Device for controlling the pre-pledging caps of a walking support depending on the progress of the dismantling|
    DE3137951C2|1981-09-24|1985-10-17|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|Hydraulic push-piston gear, in particular for use as a back and forth cylinder in underground mining operations, with permanent magnets arranged on the piston rod|DK195886A|1986-04-29|1987-10-30|Niels Hvilsted|WORKING CYLINDER WITH STAMP AND WITH A MAGNETIC DEVICE FOR DETERMINING A STAMP POSITION|
    CH674058A5|1986-10-22|1990-04-30|Festo Kg|
    US4839591A|1986-12-16|1989-06-13|Kayaba Kogyo Kabushiki-Kaisha|Magnetic stroke sensor for detecting the stroke of a fluid-power cylinder|
    FR2614946B1|1987-05-06|1989-06-23|Gratzmuller Claude|HYDRAULIC CYLINDER WITH PISTON POSITION CONTROL SYSTEM|
    FR2620530B1|1987-09-16|1991-04-12|Celduc|ELECTRICAL SENSOR DEVICE|
    US5205233A|1992-04-06|1993-04-27|Tapistron International, Inc.|Fabric shift sequencing for pattern producing hollow needle tufting apparatus|
    CN104759778B|2015-03-23|2016-11-23|国家电网公司|Be applicable to walk scanning system separation with dock hoisting mechanism|
    CN106144940B|2016-08-17|2019-03-15|天津港欧亚国际集装箱码头有限公司|A kind of bridge cart jacking cylinder limiting device|
    DE102018009534A1|2018-12-07|2020-06-10|Pepperl+Fuchs Ag|Clamping device with inductive interrogation unit|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3241237A|DE3241237C2|1982-11-09|1982-11-09|Thrust piston gear, in particular for use as a return cylinder in mining operations, with a permanent magnet system arranged on the piston rod|
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