• 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:
    An improved tool is provided for the removal of tubes from heat exchangers. First a mandrel is threaded into the end of a tube. The present tool is then fitted over the mandrel and is responsive to trigger-actuated hydraulic and/or pneumatic control means to automatically cause the tool to grip the mandrel and thereafter move the mandrel with its attached tube away from the tube sheet of the heat exchanger.
    公开号:SU710508A3
    申请号:SU2565550
    申请日:1978-01-12
    公开日:1980-01-18
    发明作者:Альбер Робер Лассара Ив
    申请人:Этаблиссеман Труве Ковен (Фирма)；
    IPC主号:
    专利说明:

    The device comprises a cylinder 1, a gland ring 2, a back plate or also a ring of a gland 3, a rear connecting element 4 and a locking device or a retainer of the jaws 5. The parts are assembled and connected to each other stationary, but with the possibility of separation. The design includes a handle 6, which allows to hold the device by its upper part with the help of a device which is not represented and has a cable and a pulley.
     Inside the cylinder 1, the clamping piston 7 is mounted for movement on one side, having a head 8, one part in the form of a sleeve 9 facing the jaws and the other part c. the form of the sleeve 10 facing the board, and on the other hand, removing the piston 11, also having a head 12 and a sleeve 13, as well as seals 14.
    The device has a sponge 15 dl. clamping rods, which are held in the divorced position with the help of springs 16. Sponges 15 are made with conical surfaces 17, interconnected. and surface carriers 18.
    The tube adapter 19 is fixed on the piston 11. The device includes a rod 20 with external thread, which is screwed into the tube of the heat exchanger 21, which must be removed, for example, using a hammer wrench or a ratchet wrench. In such a case, the rod is inserted into the device so that the tube 19 rests against the plate 22 for the heat exchanger tubes.
    The device comprises a handle 23, a distributor control with a trigger lever .. 24, a spool valve 2S, a source or generator 26 of compressed air, an air supply nozzle into the pressure chamber 27 of the extractor, an outlet 28 of this chamber 27 to the distributor 25, the distributor pipe 29, connecting pipe 28 with pipe 30, which leads to the second pressure chamber 31, another pipeline 32 of distributor 33, connecting this pipe 28 with pipe 34 so that the air generator 26 can drive pneuma A motor 35, a hydraulic pump 36, is arranged so that it can be driven by this engine 35 and pump oil from tank 37 towards the third pressure chamber 38 through pipeline 39.
    The pipe removal step may begin at. screwing the rod into the recoverable tube and when the device is mounted on this until then
    until the pipe adapter 19 rests on the tube plate 22. And the device is an example of the situation in which the chambers .27 and 31 are exposed to air pressure with a normal value of about 7 5 bar, which ensures placement
    pistons 7 and 11 in the position indicated in figure 4
    And in this case, the pressure on the control trigger 24, which causes the establishment of atmospheric pressure in the chamber 31. Therefore, the air pressure, available in X1mer 27, removes the pistons 11 and 7 to the rear position of the device, so that
    5 sleeve 9 porm 7 feeds holder 18 with a straight backward movement. Moving backwards, it exerts a radial force on the segments of the jaws 15 thus forcing them to grip the rod 20. While atmospheric pressure is established in the chamber 31 and the jaws seize the rod, the distributor pipe connects the nozzles 28 and 34 in such a way that motion
    5 motor 35, and through it pump 36. The latter sends oil or other hydraulic fluid to chamber 38, and this usually occurs at a pressure of about 700 bar. Air, which usually occurs much faster than the hydraulic flow, comes to the actual position of the oil pressure in the chamber 38. This increase in pressure begins to move the piston 11 towards the front edge of the device, which causes the actual pipe extraction operation. Referring to Fig. 5, this operation continues and the piston 11 moves towards the front end of the device, completing the removal of the pipe, while the entire assembly of the device, with the exception of the piston 11, moves to the left in order to give a similar
    5 movement of the rod and tube during extraction. We consider it necessary to note that the hydraulic pressure in chamber 31 causes the pistons 7 and 11 to separate, i.e., keep the jaws in the gripping position of the rod, moving them to the left, which performs the extraction operation.
    权利要求:
    Claims (5)
    [1]
    1. A device for mixing elongated parts, mainly pipes relative to pipe
    boards comprising a cylinder with a piston mounted therein for movement, a sponge with a drive for gripping a part and a retraction mechanism characterized by
    The fact that, in order to increase the reliability of operation, the cylinder and piston are made with a through axial channel.
    [2]
    2, The device according to claim 1, wherein the sponges are mounted for movement in the holder, and the holder is provided with an additional sponge drive holder made in the form of wedge sectors that interact with their surfaces with the outer surfaces of the sponges.
    [3]
    3. The device according to claim 2, characterized in that the additional sponge drive holder is provided with a sleeve mounted coaxially with the piston and facing the holder.
    [4]
    4, The device according to claim 1-2, about t l ichicheeesya - the fact that the jaws are located on the cylinder from the side opposite to the board body.
    [5]
    5. The device according to claim 1-2-4, in which the jaw holder is rigidly connected to the cylinder / and the sleeve of the additional holder is rigidly connected to the piston
    6, The device according to claim 1, that it is equipped with an additional piston installed coaxially with the main piston and with the direction of sweep over it.
    7, The device according to p.1 about t l. This is due to the fact that it is equipped with an additional bushing installed in the bottom of the cylinder, which is supported in the course of work on the body of the board, and the additional piston is rigidly connected with it.
    8, The device according to any one of claims 1 to 2, 6-7, characterized in that the main piston is provided with a sleeve rigidly connected to it, mounted
    on the side opposite to the location of the sleeve of the additional field: body and coaxially with it, and the additional piston is mounted on this sleeve.
    Sources of information taken into account in the examination
    1, USSR Copyright Certificate f 31845-6, cl. B 23 P 19/02, 197 (5.
    w a
    类似技术:
    公开号 | 公开日 | 专利标题
    SU710508A3|1980-01-18|Device for moving elongated parts
    US2697872A|1954-12-28|Tube pulling device
    US4724007A|1988-02-09|Method of cleaning pipes and tubes by pigging using water hammer shock waves
    US7025536B2|2006-04-11|Tandem apparatus for bursting and replacing pipe
    US4187708A|1980-02-12|Pulling apparatus and method
    SU1512477A3|1989-09-30|Feed mechanism for successive feed of flexible carrier belt with equally spaced fasteners, and riveting machine
    US4369569A|1983-01-25|Tube-pulling apparatus
    GB2285008A|1995-06-28|Fluid-actuated impact hammer
    US7353682B2|2008-04-08|Pipe flaring tool
    US3223182A|1965-12-14|Powered impact tools
    US6216326B1|2001-04-17|Tube pulling apparatus
    US3369287A|1968-02-20|Tube puller
    US5027489A|1991-07-02|Multiple pistons swaging tool
    US4459728A|1984-07-17|Screw clamp pin extractor
    CN101745585B|2012-08-22|Pre-flaring equipment and flaring device of tubular workpiece
    JP3075787B2|2000-08-14|Riveting tool
    US2883741A|1959-04-28|Diesel injection nozzle puller
    US5170524A|1992-12-15|Tube cleaning apparatus
    GB1474468A|1977-05-25|Bar-stock feed apparatus for an automatic lathe
    US20090324352A1|2009-12-31|Drilling and suction apparatus having a gripping device
    US5044421A|1991-09-03|Rotary pneumo-hydraulic clamp
    DK166605B1|1993-06-21|detaching
    US2389921A|1945-11-27|Apparatus for mining
    SU1003993A1|1983-03-15|Forging manipulator tongs clamping mechanism
    US5167058A|1992-12-01|Continuous reciprocating tube-stripping apparatus
    同族专利:
    公开号 | 公开日
    LU78710A1|1978-04-17|
    NL7714088A|1978-07-14|
    NL185168B|1989-09-01|
    IT1104987B|1985-10-28|
    BE862007A|1978-04-14|
    ES465583A1|1978-09-16|
    CA1080944A|1980-07-08|
    DE2800743C2|1983-03-03|
    DE2800743A1|1978-07-13|
    FR2384594A1|1978-10-20|
    JPS5434166A|1979-03-13|
    FR2384594B1|1982-11-12|
    US4095335A|1978-06-20|
    IT7883304D0|1978-01-10|
    NL185168C|1990-02-01|
    JPS5640275B2|1981-09-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2697872A|1950-10-05|1954-12-28|Robert S Armstrong|Tube pulling device|
    US3369287A|1967-04-20|1968-02-20|Raymond E. Brochetti|Tube puller|
    US3555649A|1968-10-07|1971-01-19|Aerpat Ag|Adaptor for pneumatically operated pulling tool|
    US3613212A|1969-07-22|1971-10-19|Carrier Corp|Tap for removing tubes from tube sheets|
    US4000556A|1975-11-17|1977-01-04|Ciminero Anthony S|Method and apparatus for pulling tubes|JPS558550A|1978-07-04|1980-01-22|Mitsubishi Heavy Ind Ltd|Pulling out apparatus for tube of heat exchanger|
    FR2445198B1|1978-12-29|1982-08-13|Trouvay & Cauvin Ets|
    US4280274A|1980-01-31|1981-07-28|Sandra Lee Filer|Tube extracting apparatus|
    US4366617A|1980-03-12|1983-01-04|Westinghouse Electric Corp.|Plug removal apparatus|
    US4292731A|1980-03-31|1981-10-06|Sandra Lee Filer|Tube removal machine|
    US4369662A|1981-02-25|1983-01-25|Westinghouse Electric Corp.|Plug installation apparatus|
    US4369569A|1981-06-06|1983-01-25|Armstrong & Sons|Tube-pulling apparatus|
    FR2516824B1|1981-11-26|1984-02-24|Korshunov Evgeny|
    DE8422476U1|1984-07-26|1984-10-31|Kraftwerk Union AG, 4330 Mülheim|TOOL TO EXTRACT A PIPE PIECE FROM A PIPE BASE|
    DE3521355C2|1985-06-14|1989-06-29|Abb Reaktor Gmbh, 6800 Mannheim, De|
    FR2591643B1|1985-12-16|1990-11-02|Freyssinet Int Stup|IMPROVEMENTS ON DEVICES FOR EXERCISING A TENSION ON A TENSION BEFORE ANCHORING|
    US5167058A|1991-01-18|1992-12-01|Armstrong & Sons, Inc.|Continuous reciprocating tube-stripping apparatus|
    WO1993016840A1|1992-02-28|1993-09-02|Combustion Engineering, Inc.|O.d. gripper|
    FR2703389B1|1993-03-30|1995-05-05|Potain Sa|Device for mounting connecting pins for structural members, and connecting pin adapted to this device.|
    AU2639595A|1994-05-12|1995-12-05|Bobby J. Travis|Self-propelled lifting apparatus|
    US5621966A|1994-10-27|1997-04-22|Kvenvold; Charles J.|Tube puller for heat exchangers|
    US5988719A|1998-03-05|1999-11-23|Aeroquip-Vickers, Inc.|Internal pipe pulling device|
    US6685423B1|2000-09-25|2004-02-03|Starcon International, Inc.|Method and apparatus for extracting and installing heat exchanger bundles|
    US6729833B2|2000-09-25|2004-05-04|Starcon International, Inc.|Method and apparatus for extracting and installing heat exchanger bundles|
    KR100435183B1|2001-11-23|2004-06-09|이회복|Tube puller system|
    US7322090B2|2005-01-19|2008-01-29|Babcock & Wilcox Canada Ltd.|Explosive tube removal device|
    KR100991252B1|2008-04-25|2010-11-01|김석환|A Silencer for Air Compressor|
    CN109434754A|2018-08-30|2019-03-08|岳阳长岭炼化通达建筑安装工程有限公司|A kind of thread-locking ring heat exchanger Bolt dismantling method|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US05/758,804|US4095335A|1977-01-12|1977-01-12|Automatic tube puller|
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