EP1269026B1 - Dispositif hydraulique demultiplicateur de pression - Google Patents

Dispositif hydraulique demultiplicateur de pression Download PDF

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Publication number
EP1269026B1
EP1269026B1 EP01940104A EP01940104A EP1269026B1 EP 1269026 B1 EP1269026 B1 EP 1269026B1 EP 01940104 A EP01940104 A EP 01940104A EP 01940104 A EP01940104 A EP 01940104A EP 1269026 B1 EP1269026 B1 EP 1269026B1
Authority
EP
European Patent Office
Prior art keywords
piston
working
chamber
pressure
hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01940104A
Other languages
German (de)
English (en)
Other versions
EP1269026A2 (fr
Inventor
Eugen Rapp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tox Pressotechnik GmbH and Co KG
Original Assignee
Tox Pressotechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tox Pressotechnik GmbH and Co KG filed Critical Tox Pressotechnik GmbH and Co KG
Publication of EP1269026A2 publication Critical patent/EP1269026A2/fr
Application granted granted Critical
Publication of EP1269026B1 publication Critical patent/EP1269026B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an approach stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/214—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being hydrotransformers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40576—Assemblies of multiple valves
    • F15B2211/40584—Assemblies of multiple valves the flow control means arranged in parallel with a check valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41527—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve
    • F15B2211/41536—Flow control characterised by the connections of the flow control means in the circuit being connected to an output member and a directional control valve being connected to multiple ports of an output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Definitions

  • the invention is based on a hydraulic pressure intensifier according to the genus of the main claim.
  • a hydraulic pressure intensifier of the generic type (DE-OS 42 23 411) the piston spindle is used to generate the high pressure of the plunger via a pneumatic drive piston actuated.
  • this pressure intensifier which in some Cases do not exist, or always with certain circumstances is connected and the use of the device by such Makes air supply dependent.
  • DE-OS-40 26 959 discloses an electric motor, via ball screw and corresponding nut driven linear unit with hydraulic Intensifier. However, this design is quite complex.
  • the hydraulic pressure intensifier according to the invention with the has characteristic features of the main claim in contrast, the advantage of simplifying the construction.
  • Lifting forces generated by electrical energy are sufficient for the to generate hydraulic high pressure.
  • the electrical energy in the generated electrical power is controlled, for example, by generating a lower force for the rapid traverse and when the plunger is immersed in the work area and due to the resulting higher pressure or mechanical process, an electrical switchover takes place. Also this is an additional advantage of the inventive solution.
  • Electric motor designed as a linear motor, in which the armature at least indirectly with or with the plunger connected drive spindle and / or the piston rod of the Working piston is connected, so that especially the rapid traverse through the linear forces can take place and where the drive spindle as Armature of the linear motor can serve.
  • Such linear motor on the piston rod can after immersion of the plunger in the working area on the linear motor Holding forces, due to the high pressure ratio, light be overcome, especially with rapid traverse and return stroke a quick adjustment is possible.
  • the rapid traverse before the working stroke and / or after the Return stroke lying at least partially hydraulic causes is provided.
  • the Invention is inside the housing and around the piston rod as well as an annular space bounded by the working piston hydraulic control available.
  • This enabled hydraulic servo function allows the use of known means, such as servo motor and the like.
  • the Invention is in the hydraulic connection between Storage space and annulus, or compensation space each one Control valve arranged, which towards the storage space (5) or annular space (16) guaranteed free flow, however in reverse Direction throttles the flow.
  • a housing 1 of a hydraulic pressure booster is over a working piston 2 a piston rod 3 driven and a hydraulic work space 4 is provided.
  • a Storage space 5 is provided, which with the work space 4 by a Control bore 6 is connected and by a storage piston 7 is limited.
  • a Plunger 8 Coaxial with the accumulator piston 7 is a Plunger 8 provided with a drive spindle 9 connected after a certain stroke in the control hole 6 dips, this locks and the continuation of the Hubes in the workspace 4 one according to the Diameter ratio of plunger 8 and working piston 2 given high pressure.
  • a power stroke via the plunger 8 is generated for machining the workpiece, for example one Punching the same.
  • Fig. 1 is with the Accumulator piston 7 in an axial line with the plunger 8 a Drive spindle 9 attached, which penetrates a linear motor 11, which is arranged outside of the housing 1 and attached to this is.
  • a linear motor 11 which is arranged outside of the housing 1 and attached to this is.
  • Coaxial to Drive spindle 9 is an annular piston 12 axially displaceable on this arranged, which is loaded by a spring 13 and on that delimits a compensation space 14 facing away from the spring 13, which on the other hand is limited by the accumulator piston 7.
  • This compensation space 14 is connected via a line 15 to both Storage space 5 and connected to an annular space 16, the formed between working piston 2, housing 1 and piston rod 3 is.
  • control valves 17 are arranged, each a free flow to the storage space 5 or the annular space 16 ensure, however, the flow in the opposite direction throttle, this throttling is adjustable.
  • Throttling effect during rapid traverse or working stroke of the pressure intensifier on.
  • FIG. 2 The embodiment is also the piston rod 3 only shown in principle operable spindle drive, the particular is designed as a linear motor.
  • Servo motor 19 and an additional reservoir 21 for hydraulic fluid removable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Actuator (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Hydraulic Motors (AREA)

Claims (5)

  1. Dispositif hydraulique démultiplicateur de pression
    avec, placé dans un carter à agrégat (1), un espace de travail (4) pour des pressions variables, en l'occurrence une basse pression à l'accumulateur pour une marche en déplacement rapide et une course de retour ainsi qu'une pression de travail élevée pour une course de travail,
    avec un piston de travail (2) délimitant la face frontale de l'espace de travail (4) et pouvant être actionné par la pression de travail dans le carter de travail (1) pour la course de travail, piston de travail qui est guidé vers l'extérieur du carter (1) par une tige de piston (3),
    avec un volume de retenue (5) pouvant être relié de façon hydraulique à l'espace de travail (4) et placé dans un espace de cylindre du carter (1), volume de retenue d'où, sous l'effet de la pression à l'accumulateur, de l'huile hydraulique s'écoule, pendant le déplacement rapide, dans l'espace de travail (4), d'où elle ressort durant la course de retour,
    avec un piston plongeur (8) pouvant être actionné comme générateur de haute pression et plongeant dans l'espace de travail (4) après le déplacement rapide, piston plongeur qui comporte un arbre moteur (9), et
    avec un entraínement du piston plongeur (8) sur le côté opposé à l'espace de travail (4) pour le déplacement rapide ainsi que pour la course de travail de façon à générer une pression de travail élevée,
    caractérisé en ce
    que le piston plongeur (8) ou l'arbre moteur (9) est entraíné par un moteur linéaire électrique (11, 18, 22, 23) au minimum pour la course de travail et
    que l'ancre de ce moteur linéaire électrique (11) est reliée au piston plongeur (8) et/ou à la tige de piston (3) du piston de travail (2).
  2. Dispositif démultiplicateur de pression conformément à l'une des revendications précitées, caractérisé en ce que, à l'intérieur du carter (1) et autour de la tige de piston (3) ainsi que limité par le piston de travail (2), se trouve un espace annulaire (16) pour la commande hydraulique, en particulier pour la course de retour.
  3. Dispositif démultiplicateur de pression conformément à la revendication 2, caractérisé en ce qu'il existe une liaison hydraulique (15) entre l'espace annulaire (16) et le volume de retenue (5).
  4. Dispositif démultiplicateur de pression conformément à la revendication 3, caractérisé en ce qu'un piston annulaire (12) coulissant dans le sens axial et étanche par rapport à l'arbre moteur et au carter (1) est placé autour de l'arbre moteur (9), piston annulaire qui délimite un espace de compensation (14) rempli de fluide hydraulique par rapport à un piston à accumulateur (7), subit la poussée d'un ressort (13) déterminé par la basse pression hydraulique et qui est relié par une liaison hydraulique (15).
  5. Dispositif démultiplicateur de pression conformément à la revendication 4, caractérisé en ce que, dans la liaison hydraulique entre le volume de retenue (5) et l'espace annulaire (16) ou, en l'occurrence, l'espace de compensation (14), se trouve respectivement une vanne-pilote (17) qui garantit un écoulement sans entrave vers l'espace de retenue (5) ou, en l'occurrence, l'espace annulaire (16), mais qui, par contre, dans le sens inverse, étrangle le flux de passage.
EP01940104A 2000-03-27 2001-03-26 Dispositif hydraulique demultiplicateur de pression Expired - Lifetime EP1269026B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10014763 2000-03-27
DE10014763 2000-03-27
PCT/DE2001/001205 WO2001073298A2 (fr) 2000-03-27 2001-03-26 Dispositif hydraulique demultiplicateur de pression

Publications (2)

Publication Number Publication Date
EP1269026A2 EP1269026A2 (fr) 2003-01-02
EP1269026B1 true EP1269026B1 (fr) 2003-11-12

Family

ID=7636269

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01940104A Expired - Lifetime EP1269026B1 (fr) 2000-03-27 2001-03-26 Dispositif hydraulique demultiplicateur de pression

Country Status (7)

Country Link
US (1) US20040028543A1 (fr)
EP (1) EP1269026B1 (fr)
JP (1) JP2004503702A (fr)
CN (1) CN1427924A (fr)
AU (1) AU7381801A (fr)
DE (3) DE10191171D2 (fr)
WO (1) WO2001073298A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8695414B2 (en) 2011-07-12 2014-04-15 Halliburton Energy Services, Inc. High pressure and flow rate pump useful in formation fluid sample testing

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10325043A1 (de) * 2002-05-31 2004-01-15 Tox Pressotechnik Gmbh & Co. Kg Verfahren zur Umschaltung eines hydraulischen Druckübersetzers
AU2003255126A1 (en) * 2003-05-13 2004-12-03 Ju Jiao A hydraulic intensifier electromotion cylinder
US20050091972A1 (en) * 2003-10-31 2005-05-05 Redman Kenneth K. Electrohydraulic actuator
EP1724043A1 (fr) * 2005-05-18 2006-11-22 Gerd Friedrich Guenter Dr. Koennecker Cisaille hydraulique ou outil similaire ayant un piston actionné par un moteur électrique linéaire
TWM423163U (en) * 2011-10-21 2012-02-21 Chanto Air Hydraulics Co Ltd Pressure boosting cylinder with invisible loop
TWM423162U (en) * 2011-10-21 2012-02-21 Chanto Air Hydraulics Co Ltd Pressure boosting cylinder with separated oil and gas
DE102012008902A1 (de) * 2012-05-08 2013-11-14 Tox Pressotechnik Gmbh & Co. Kg Hydropneumatische Vorrichtung zur Druckübersetzung und Nietvorrichtung
CN102691636B (zh) * 2012-06-09 2015-02-25 林志元 一种水持续增压装置
CN102913509A (zh) * 2012-11-23 2013-02-06 湖北汽车工业学院 电液增压缸及安装有电液增压缸的压机设备
CN103185046B (zh) * 2013-03-14 2016-06-29 西安交通大学 一种交流伺服直驱增压式带油箱电动液压缸及其增压方法
CN105736796B (zh) * 2016-03-30 2018-09-21 太原理工大学 一种机电联动液控闸阀驱动器
CN106050760B (zh) * 2016-06-27 2018-12-18 武汉仁达秦雕数控设备有限公司 四活塞气水增压缸
CN112196844B (zh) * 2020-09-27 2021-11-05 张家口长城液压油缸有限公司 一种用于液压系统的高压高纯度蓄能器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625884A1 (de) 1976-06-09 1977-12-15 Transform Verstaerkungsmasch Verfahren und vorrichtung zum hydropneumatischen erzeugen einer druck- bzw. presskraft
DE4026959A1 (de) * 1990-08-25 1992-02-27 Illig Maschinenbau Adolf Elektromotorisch angetriebene lineareinheit mit hydraulischem druckuebersetzer
DE4223411A1 (de) 1992-07-02 1994-01-05 Pressotechnik Pressen Und Werk Hydropneumatischer Druckübersetzer
JP2955220B2 (ja) * 1995-12-06 1999-10-04 太陽鉄工株式会社 インライン増圧装置
JP3331152B2 (ja) * 1997-07-29 2002-10-07 東芝機械株式会社 密閉液圧式増圧装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8695414B2 (en) 2011-07-12 2014-04-15 Halliburton Energy Services, Inc. High pressure and flow rate pump useful in formation fluid sample testing

Also Published As

Publication number Publication date
DE10115634A1 (de) 2002-01-24
US20040028543A1 (en) 2004-02-12
EP1269026A2 (fr) 2003-01-02
JP2004503702A (ja) 2004-02-05
CN1427924A (zh) 2003-07-02
AU7381801A (en) 2001-10-08
WO2001073298A2 (fr) 2001-10-04
WO2001073298A3 (fr) 2002-03-07
DE50100964D1 (de) 2003-12-18
DE10191171D2 (de) 2003-04-24

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