• 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 relates to a method for the simultaneous actuation of a plurality of hydraulic consumers by means of intrinsically-safe electro-hydraulic valves. The consumers are connected by hydraulic directional control valves to a pressure line and/or a return line. These hydraulic directional control valves can be connected in a predetermined manner, via pre-control valves to a control line. The pre-control valves are pressureless, and possess electro-magnets with a current consumption of less than 50 milliamps. By connection of a series-connected electro-hydraulic directional control valve means, the pre-control valves are connected to the control line, and at the same time are hydraulically locked.
    公开号:SU1597114A3
    申请号:SU864028027
    申请日:1986-08-27
    公开日:1990-09-30
    发明作者:КУССЕЛЬ Вилли；Деттмерс Михаэль；Вайрих Вальтер
    申请人:Геверкшафт Эйзенхютте Вестфалия Гмбх (Фирма)；
    IPC主号:
    专利说明:

    Research institutes of control - from output F electric control) 1x control valves. The latter are made in the form of three-linear two-position GR, the INPUTS of which are connected to the pressure control line, the outlets along the hydraulic lines through a non-return valve - from the drain M. The integrated electric-controlled control bars in the form of a three-linear two-position spring-loaded GH are built in the hydraulic line. The inputs of the GG are connected to the pressure M control, the outputs are via a non-return valve with a drain, and the control lines of the controlled valves are connected to the console, to which the control lines of the valves are connected, the outputs of which are connected to the inputs of the control valves. Each electrically controlled control slang is made of a housing 36 in which a control magnet is located with the possibility of interacting with the latter, and includes a stepped plunger 38 and a sleeve A3 enclosing it rigidly fixed on its outer surface, and a piston 40. The piston 40 is made in the form a cylinder, to the bases of which two truncated cones are rigidly attached by large bases. For engagement with the conical surfaces of the piston 40, upper 41 and lower 42 seats are provided. The housing 36 is screwed onto the controlled part 37. The piston 40 is installed in the cavity 50 located between the seats 41 and 42, the cavity 50 communicates with the line 18 of the corresponding GR, the other subvalvular cavity communicates with the output of the corresponding additional electrically controlled control valve. The area of the end surface of the sleeve 43 is larger than the area of the cylindrical surface of the piston 40, but less than the area of the working surface of the lower seat 42, 2 Il.
    The invention relates to the control of hydraulic consumers using intrinsically safe electrohydraulic valves, in particular, to the control of the hydraulic cylinders of the sections of mechanized cranks. The aim of the invention is to ensure the simultaneous inclusion of a plurality of hydraulic cylinders of sections of mechanized roof supports. Fig. 1 shows a support control scheme; Fig 2, control valve, section. The device for controlling the supply of pressure to the hydraulic shanks of the sections of the mechanized supports includes a low pressure pipe 1, a pressure line 2, a pressure line (line) 3 of the control and a drain line 4, hydraulic cylinders 5 and 6 are connected to a pressure line 2 and drain line 4, Piston 9 and 10 or rod 11 and 12 working cavities of hydraulic cylinders can be connected with the help of three linear two-position hydraulic distributors 13-16 with hydraulic control to a pressure master Ali 2 or to the drain line 4, the distributors 13-16 are held in their original position by means of the spring element 17 in the switching position in which they connect the working cavities of the hydraulic cylinders to the drain line, have hydraulic servo pistons and can be controlled via lines 18 managers. When the servo piston is loaded, the working cavities of the hydraulic cylinders are connected to the pressure line 2, the inlets of the distributors 13-16 communicate with the pressure 2 and through check valves with drain 4 lines, the outlets - from the cavities of the hydraulic cylinders 5 and 6, and the control lines 18 - to the electro-controlled outlets control valves 19-22, made in the form of a three-line two-position spring-loaded valve, the inputs of which are connected to the pressure control line 18 control hydraulic lines 23 and 24 through the check valve with drain line 4. In hydrome on line 24 embedded additional elektroupravl emye The control valves in the form of a spring-loaded two-position three-way directional control valves 25 and 26 whose inputs are communicated with the control pressure line 3 outputs - through a check valve with a drain. Lines
    515
    27 of the control valves 19-22 are connected to the control console 28, to which the control lines 29 of the valves 25 and 26 are connected, the outputs of which are connected to the inlets of the valves 19-22.
    The directional valves 25 and 26 are held in their initial position by the spring element 30 in the switching position in which they connect the hydraulic line 24 to the drain line 4. Since the hydraulic lines 23 and 24 are connected to the drain line 4, at the inlet of the control valves 19 22 there is no hydraulic pressure. By means of the spring elements 31, the control valves are held in the switching position in which they connect the control lines 18 to the main line 23 and to the drain line 4,
    Since the control valve keys 19-22 must switch in the absence of hydraulic pressure, they have electrical switching magnets, the current consumption of which is minimal. The power consumption of the control valves is less than 50 mL, mainly. 10 mA,
    The control panel has buttons 3235 dp turning on valves 19-22 and 25, 26,
    The control valves 19-22 are hydraulically self-blocking, m., E, while pressure is present in the hydraulic line 24, the electric control of the control valves can be interrupted, the Control valves 19-22 remain hydraulically blocked until electrically loaded using buttons 34 and 35 three-way two-way valves 25 and 26,
    The design of control valves 19-22 is described using the example of control valve 19 (4 mg, 2),
    The control valve 19 consists of a housing 36 in which an engaging magnet (not shown) is located with the possibility of interaction with a postdate, and a hydraulic control part 37, the housing 36 or is screwed onto the control part 37, or both structural assemblies are installed in a common housing. The valve 19 also contains a stepped plunger 38, a spring 39, a cylinder 40, made in the form of a cylinder, to the bases of which two truncated tubes are rigidly fixed with large bases 146
    a rigidly fixed end face to the end face of the pusher 38 on the side opposite to the magnet, the top 4 and bottom 42 saddles of interaction, with the conical surfaces of the piston, tpzzu 43, which encloses the step pusher 38 and is rigidly fixed on its outer surface with an extension pin 44, The control part 37 is made with a central opening 45 in which the above-mentioned parts are installed, a channel 46 connected to a hydraulic line 24, a channel 47 connected to line 18, and a channel 48 connected to a hydraulic line 23, above the saddle 41 and the chamber 49, the piston 40 is installed in the cavity 50 located between the seat and 41 and 42, the sleeve 43 is mounted for movement in the valve guide 51. The cavity 50 communicates with the control line 18 of the corresponding hydraulic distributor 13, the spring 39 presses the piston 40 from the opposite side of the magnet end and is installed in the subvalvular cavity communicated with the drain, while the other subvalvale cavity communicates with the output of the corresponding additional electrically controlled control valve, and the end face area the surface of the liner is larger than the area of the cylindrical surface of the piston, but smaller than the area of the working surface of the lower seat,
    i
    The device works in the following way.
    权利要求:
    Claims (2)
    [1]
    The circuit is in the initial position shown in FIG. 1, From the control panel 28, for example, by activating buttons 32 and 33, the control valves 19 and 21 are turned on, Control lines 18 are connected to the main line 24, which is connected to the drain line 4, by activating the buttons 34 and 35 include three-way two-way control valves 25 and 26 and connects the pressure main line 3 of the control to the hydraulic line 2, - Through the switched-on control valves 19 and 21, the control lines 18 are loaded with pressure and include ervopsrshney trilinear dvuhpozitsionn1.e valves 13 and 15, In this position, the cavity 9 and for 1 i i pepe eIdei pistons of hydraulic cylinders 5 and 6 are connected with {s na715 PORN backbone
    [2]
    2. The rods of the hydrocylystrys begin to be advanced. A control impulse created in the impulse part by the engaging magnet loads the valve pusher 38 in direction 1-d-1 and arrow F and displaces the valve pusher 38 against the valve spring 39, the valve pusher 38 is made with several steps and in its upper zone is surrounded by a hermetically-tight valve sleeve 43. The valve flap 43 is fastened to the pusher with the help of the spacer pin 44 and slides in the valve guide sleeve 51. At the end opposite the switching magnet, the valve piston 40 is rigidly fixed to the pusher 38. The upper conical end of the piston 40, with an unexcited magnet actuating the valve spring 39, is pressed down to the upper valve stem 41. When the actuating magnet is energized, i.e., when the valve tappet 38 is displaced downward against the valve spring 39, the lower cone end of the valve plate 40 is adjacent to the lower valve seat 42. The control part 37, along with the central bore 45, in which, among other parts, the valve pusher 38 is installed, has connecting ports 46-48. If control valve 19 through hydraulic line 24 or duct 46 is pressurized, i.e. a three-way two-way valve 25 was switched on, without the firing pump being excited, the working fluid (pressure fluid) in the valve chamber 49 (pressure fluid) loads the piston 40 of the valve 40 along the annular surface with the E1 attached to the valve seat 41 Outer diameter D1. However, the working fluid contained in the valve chamber 49 acts simultaneously on the valve sleeve 4 which tightly surrounds the valve pusher 38 and thereby creates an oppositely acting force component. Since the pressure-loaded annular surface with an outer diameter D2 formed by the valve sleeve 43 is larger than the clamping surface with an external diameter D1 acting on the valve seat 4, the valve piston 40 is more rigidly pressed down to the cejuiy 41 valve, in this position The primary 1 valve is closed in relation to the pressure line 3 for control, the control 18 is connected to the main line 23 and to the drain line 4.. If the control valve 19 is turned on, then a closing magnet presses the valve piston 40 against the lower valve seat 42. In this case, the valve spacing 40 supplied by the working fluid through line 24 is loaded on the annular surface with the outer diameter PZ. Since the outer diameter D3 and the loaded supporting (working) surface are larger than the supporting surface acting on the valve sleeve 43, the piston 40 of the valve is pressed hydraulic pressure to the bottom valve 42 and is fixed there even when the closing magnet is turned off. In this position, the main line 24 is connected to the control line 18. This position continues until the three-line two-way hydraulic distributor 25 is turned off. Claims of the invention A device for controlling the supply of pressure to the hydraulic cylinders of the sections of the powered supports, including spring-loaded one on the one side of the three-cylinder. two-way hydraulic control valves with hydraulic control, the inputs of each of which are connected to the pressure and through check valves with drain lines, the outputs to the cavities of the hydraulic cylinders, and the control lines to the outputs of the electric control valves, made in the form of three-line two-position spring-loaded hydraulic distributors, the inputs of which are connected to the pressure control line and to the drain, and the control lines to the control panel, additional electrically controlled valves in the form of three-way valves spring-loaded control valves, the inlets of which are connected to the pressure control line, the outlets through the check valve - with a drain, and the control lines - with a control panel p characterized in that, in order to ensure the simultaneous activation of a plurality of section hydraulic cylinders, the output of one additional electric control valves is communicated with electric control valve inputs, and each electric control valve of the first control valve is made of a switching magnet installed in the housing with the possibility of interaction with the latter, a stepped pusher, enclosed by a sleeve rigidly fixed on its outer surface, a piston of a valve made in the form of a cylinder, to the bases of which two truncated cones rigidly attached to the pusher from one side rigidly attached by large bases, opposite to the magnet, the upper and lower saddles to interact with the conical surfaces
    a piston installed in a cavity located by them, communicated with the control line of the corresponding distributor with hydraulic control, and clamped from the other end by a spring installed in the subvalvular cavity communicated with the drain, with this other subvalvale cavity communicating with the output of the corresponding additional electrically controlled The surface of the liner is larger than the area of the cylindrical surface of the piston, but less than the area of the working surface of the lower seat.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1597114A3|1990-09-30|Arrangement for controlling supply of pressure into hydraulic cylinders of units of power supports
    US4674451A|1987-06-23|Valve control arrangement for internal combustion engines with reciprocating pistons
    EP0912819B1|2003-04-02|A hydraulically controlled intake/exhaust valve
    US6012644A|2000-01-11|Fuel injector and method using two, two-way valve control valves
    GB2090787A|1982-07-21|Hydraulically operated die closing unit of inspection molding machine
    US4359064A|1982-11-16|Fluid power control apparatus
    US6354185B1|2002-03-12|Flow manager module
    JPH05312202A|1993-11-22|Position-controlled proportional directional valve
    US6701879B2|2004-03-09|Internal combustion engine
    JP4399360B2|2010-01-13|Device for controlling a gas exchange valve
    US5570721A|1996-11-05|Double acting solenoid and poppet valve servomechanism
    US5226346A|1993-07-13|Axial piston type pressure medium servomotor control device
    US4903728A|1990-02-27|Safety valve
    US4510973A|1985-04-16|Hydraulic control valves
    KR970010000B1|2020-04-06|Flow rate control valve device and flow force reduction structure
    US4667698A|1987-05-26|Hydraulic distributor
    RU2267660C1|2006-01-10|Electro-hydraulic servo drive
    US5836230A|1998-11-17|High speed 2-way control valve
    RU2286468C2|2006-10-27|Timing gear valves control device
    SU1253776A1|1986-08-30|Positional drive of working member for wood-working machine
    JPS58113605A|1983-07-06|Oil hydraulic circuit and control valve used for said circuit
    US4479514A|1984-10-30|Float positioning assembly for pilot operated valve
    CN213451836U|2021-06-15|Multi-way valve and hydraulic distributor thereof
    SU1605073A1|1990-11-07|Solenoid control valve unit
    KR100499285B1|2006-07-25|Pilot Switching Valve of Hydraulic System for Civil Construction Machinery
    同族专利:
    公开号 | 公开日
    GB2179703B|1988-11-09|
    US4702148A|1987-10-27|
    CA1285850C|1991-07-09|
    CN86104688A|1987-03-11|
    AU572775B2|1988-05-12|
    ES8801404A1|1988-01-01|
    DE3530657C2|1995-03-16|
    BE905336A|1986-12-16|
    ES556801A0|1988-01-01|
    GB2179703A|1987-03-11|
    AU5915886A|1987-03-05|
    CN1006165B|1989-12-20|
    DE3530657A1|1987-03-12|
    GB8614873D0|1986-07-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2825306A|1954-02-10|1958-03-04|Sulzer Ag|Servomotor control system|
    US3016917A|1956-08-24|1962-01-16|Int Basic Economy Corp|Valve for controlling pressurized fluid|
    US4046058A|1973-12-10|1977-09-06|Gewerkschaft Eisenhutte Westfalia|Control systems and arrangements for use in mineral mining installations|
    US4073313A|1974-12-06|1978-02-14|Fairchild Industries, Inc.|Valve apparatus|
    US4638720A|1980-12-01|1987-01-27|Deere & Company|Electro-hydraulic control system|
    DE3110220C2|1981-03-17|1989-06-08|Gewerkschaft Eisenhuette Westfalia Gmbh, 4670 Luenen, De|
    DE3123224C2|1981-06-11|1986-08-21|Klöckner-Becorit GmbH, 4620 Castrop-Rauxel|Electrically operated hydraulic control valve|
    GB2141597B|1983-06-14|1987-02-11|Dobson Park Ind|Electrically operated valve|
    US4564047A|1984-04-07|1986-01-14|Fletcher Sutcliffe Wild Limited|Control valve|
    DE3435952A1|1984-09-29|1986-04-10|Gewerkschaft Eisenhütte Westfalia, 4670 Lünen|VALVE DEVICE FOR HYDRAULIC EXTENSION SYSTEM AND THE LIKE|US4836088A|1985-08-21|1989-06-06|Rome Industries, Inc.|Directional control valve and regeneration valve|
    WO1988006241A1|1987-02-20|1988-08-25|Hitachi Construction Machinery Co., Ltd.|Pilot-operated hydraulic circuit and hydraulic quick exhaust valve|
    US4879875A|1988-03-22|1989-11-14|The Boeing Company|Fastener driving tool|
    DE3840478C2|1988-12-01|1996-05-15|Westfalia Becorit Ind Tech|Device for the emergency actuation of hydraulic expansion units for electrohydraulic expansion controls|
    US5138838A|1991-02-15|1992-08-18|Caterpillar Inc.|Hydraulic circuit and control system therefor|
    US5351602A|1992-08-05|1994-10-04|The United States Of America As Represented By The Secretary Of The Army|Jointed assembly actuated by fluid pressure|
    DE19612864A1|1996-03-30|1997-10-02|Zahnradfabrik Friedrichshafen|Hydraulic control device for shifting an automatic transmission, in particular a CVT transmission|
    DE19806100C2|1998-02-14|1999-12-09|Roland Man Druckmasch|Arrangement for controlling two or more sheet straight pushers in the delivery of a sheet-processing printing machine|
    DE19857890B4|1998-12-15|2008-06-19|Dbt Gmbh|valve assembly|
    US6715403B2|2001-10-12|2004-04-06|Caterpillar Inc|Independent and regenerative mode fluid control system|
    US6701822B2|2001-10-12|2004-03-09|Caterpillar Inc|Independent and regenerative mode fluid control system|
    DE20307512U1|2003-05-13|2003-07-10|Dbt Gmbh|Hydraulically switchable directional valve|
    CN101251007B|2008-03-27|2012-04-18|中国海洋石油总公司|Inserting-mounting type electrohydraulic integration device|
    CN102330720B|2011-03-17|2014-05-28|昆山航天智能技术有限公司|Parameter dynamic matching control system between multi-way reversing valve and hydraulic oil cylinder|
    CN104088833A|2014-07-06|2014-10-08|上海宏信设备工程有限公司|Power supply and hydraulic redundancy oblique cone self-locking axial force compensation system|
    CN104963713A|2014-12-25|2015-10-07|李振安|Intelligent controller having multiple control functions|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19853530657|DE3530657C2|1985-08-28|1985-08-28|Device for controlling hydraulic consumers used in underground mining|
    [返回顶部]