FR2590519A1 - Hydraulic press with variable height table - Google Patents

Hydraulic press with variable height table Download PDF

Info

Publication number
FR2590519A1
FR2590519A1 FR8517401A FR8517401A FR2590519A1 FR 2590519 A1 FR2590519 A1 FR 2590519A1 FR 8517401 A FR8517401 A FR 8517401A FR 8517401 A FR8517401 A FR 8517401A FR 2590519 A1 FR2590519 A1 FR 2590519A1
Authority
FR
France
Prior art keywords
rod
jack
spring
welded
end piece
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.)
Granted
Application number
FR8517401A
Other languages
French (fr)
Other versions
FR2590519B1 (en
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.)
CHAIGNAY MAURICE
Original Assignee
CHAIGNAY MAURICE
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 CHAIGNAY MAURICE filed Critical CHAIGNAY MAURICE
Priority to FR8517401A priority Critical patent/FR2590519B1/en
Publication of FR2590519A1 publication Critical patent/FR2590519A1/en
Application granted granted Critical
Publication of FR2590519B1 publication Critical patent/FR2590519B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand

Abstract

The invention relates to the use of hydraulic jacks which are modified and used in an inverted position. The jack is fixed by its base 14 to an upper sole plate 5 welded to 2 slides 6 moving between uprights 2 welded to a lower sole plate 1. Two movable spindles 3 determine the height chosen. The pumping arm 9 is clipped to a slide 6. The modification relates to the insertion of a well tube 30 in the bearing base 14, and the reboring of the rod 20 for the passage of the spring 29 and of the end piece 28. A circular seal 38 inserted in the end piece 28 ensures sealing. The rotation of the discharge valve 32 allows the rod 20 to reascend by means of a traction spring 29. The invention is especially intended for small-scale mechanical work or laboratory presses.

Description

PRESSE HYDRAULIQUE D'ETABLI A HAUTEUR VARIABLE
La présente invention concerne les crics hydrauliques, constitués par un vérin hydraulique vertical entouré d'une réserve d'huile coaxiale et munis d'une pompe à main, aspirant dans la réserve et refoulant dans la base du vérin pour assurer la montée, avec en outre un robinet ou clapet de décharge permettant la descente.VARIABLE HEIGHT Bench HYDRAULIC PRESS
The present invention relates to hydraulic jacks, constituted by a vertical hydraulic cylinder surrounded by a reserve of coaxial oil and provided with a hand pump, sucking in the reserve and discharging into the base of the jack to ensure the rise, with in in addition to a tap or relief valve allowing the descent.

L'adaptation de ce type de cric hydraulique à l'invention proposée consiste à inverser l'utilisation normale par la modification du sens de la pression verticale. The adaptation of this type of hydraulic jack to the proposed invention consists in reversing normal use by modifying the direction of the vertical pressure.

Le cric est fixé en position inverse de son utilisation sur une semelle supérieure sur laquelle sont soudées 2 coulisses percées pour le passage de broches d'arrêt, la mobilité-verticale des coulisses permet d'obtenir 4 hauteurs d'emploi. The jack is fixed in the reverse position of its use on an upper sole on which are welded 2 slides drilled for the passage of stop pins, the vertical mobility of the slides allows to obtain 4 heights of use.

La rotation du clapet de décharge permet à la tige de remonter par l'intermédiaire d'un ressort de traction en chassant l'huile contenue dans le tube vers la réserve. The rotation of the relief valve allows the rod to go up via a tension spring by driving the oil contained in the tube towards the reserve.

FIGURE 1 Description générale
L'ensemble est constitué par une semelle inférieure (1) sur laquelle sont soudés 2 montants (2), en tube rectangulaire, percés de 4 trous pour le passage de 2 broches mobiles (3). La semelle inférieure (1), est alésée pour assurer le passage des axes chassés et taraudée pour la fixation d'outillages éventuels. Le repos, sur établi de l'ensemble, est assuré par 4 plots cylindriques (4).FIGURE 1 General description
The assembly is constituted by a lower sole (1) on which are welded 2 uprights (2), in rectangular tube, drilled with 4 holes for the passage of 2 movable pins (3). The lower sole (1) is bored to ensure the passage of the driven axes and tapped for fixing any tools. The rest, on the workbench of the assembly, is provided by 4 cylindrical studs (4).

Sur la semelle supérieure (5) sont soudées les 2 coulisses (6) et est positionné le cric inversé et modifié fixé par 4 vis (8). Le bras de pompage (9) est fixé sur le cOté d'une des coulisses (6) par clipsage (10) et peut être mis en place dans la tête baguée (11) de l'ensemble de la pompe (23) et maintenu par une vis (12) serrée manuellement. On the upper sole (5) are welded the 2 slides (6) and the inverted and modified jack is positioned fixed by 4 screws (8). The pumping arm (9) is fixed to the side of one of the slides (6) by clipping (10) and can be put in place in the ringed head (11) of the pump assembly (23) and held by a screw (12) tightened manually.

Description du cric
Le cric comprend d'une manière usuelle un tube central (13) fermé à sa partie inférieure par une base d'appui (14) et à sa partie supérieure par un bouchon palier (15). Une réserve d'huile est maintenue sans pression entre une enveloppe (16) et le tube central (13), un bouchon en caoutchouc (17) assure le remplissage du cric en huile hydraulique. Description of the jack
The jack usually comprises a central tube (13) closed at its lower part by a support base (14) and at its upper part by a bearing plug (15). An oil reserve is maintained without pressure between an envelope (16) and the central tube (13), a rubber stopper (17) ensures the filling of the jack with hydraulic oil.

A l'intérieur du tube central (13), coulisse d'une manière étanche un piston (18) muni d'un joint à lêvres (19) et prolongé à sa partie supérieure par une tige (20) coulissant dans le bouchon palier (15) dont l'étanchéité est assurée par un joint (22). L'extrèmité de la tige (20) est terminée dans la plupart des cas par une pièce d'appui comportant une partie filetée (non dessinée) afin de permettre d'obtenir la hauteur désirée du cric. Inside the central tube (13), slides in a sealed manner a piston (18) provided with a lip seal (19) and extended at its upper part by a rod (20) sliding in the bearing plug ( 15) whose sealing is ensured by a seal (22). The end of the rod (20) is terminated in most cases by a support piece comprising a threaded part (not drawn) in order to allow the desired height of the jack to be obtained.

Dans la base d'appui (14), une pompe à main (23), actionnable par un levier (9) et constituée par un plongeur (25) coulissant dans un alésage (26) permet à la pompe (23) d'aspirer l'huile contenue dans la réserve (27) et de la refouler à l'intérieur du tube (13) sur la base de la tige (29). In the support base (14), a hand pump (23), actuable by a lever (9) and constituted by a plunger (25) sliding in a bore (26) allows the pump (23) to suck the oil contained in the reserve (27) and discharge it inside the tube (13) on the base of the rod (29).

FIGURE 2 Coupe de la tige
La modification du cric précité comprend
La suppression de la pièce d'appui et de sa partie filetée (non dessinées) ; le réalésage de la tige (20) pour assurer la mise en place de l'embout (28) et le passage du ressort de traction (29) ; l'inversion de la base d'appui (14) et de sa fixation sur la semelle supérieure (5) par des vis (8) ; la mise en place d'un tube de puits (30), emmanché serré dans la base d'appui (14) et communiquant avec la réserve (27), permettant de pomper l'huile contenue entre l'enveloppe (31) et le tube central (13).FIGURE 2 Cut of the stem
Modification of the above jack includes
The removal of the support piece and its threaded part (not shown); re-boring the rod (20) to ensure the fitting of the end piece (28) and the passage of the tension spring (29); inverting the support base (14) and its fixing to the upper sole (5) by screws (8); placing a well tube (30), fitted tightly into the support base (14) and communicating with the reserve (27), making it possible to pump the oil contained between the casing (31) and the central tube (13).

En fin de course de la tige (20) la rotation du clapet de décharge (32) permet à la tige (20) de retourner à sa position première par l'intermédiaire d'un ressort de traction (29) maintenu en position par une vis usinée (33) fixée dans la base d'appui (14) et par une clavette cylindrique (34) en appui sur une entretoise en plastique (35). At the end of the rod stroke (20) the rotation of the relief valve (32) allows the rod (20) to return to its original position by means of a tension spring (29) held in position by a machined screw (33) fixed in the support base (14) and by a cylindrical key (34) resting on a plastic spacer (35).

La pression à l'intérieur du tube central (13) obtenue par la pompe (23) est insuffisante pendant la descente de la tige (20) pour chasser l'embout (28) emmanché serré. Au contact avec une pièce - soit à emmancher ou à cambrer -, l'embout (28) s'appuit sur la partie extreme de la tige (20) et assure la résistance nécessaire de l'ensemble à la pression de la presse. The pressure inside the central tube (13) obtained by the pump (23) is insufficient during the descent of the rod (20) to drive out the nozzle (28) fitted tightly. In contact with a part - either fitting or arching - the end piece (28) is supported on the extreme part of the rod (20) and provides the necessary resistance of the assembly to the pressure of the press.

L'embout (28) est alésé et taraudé pour la mise en place d'outillages éventuels.  The end piece (28) is bored and tapped for the installation of any tools.

Claims (6)

REVENDICATIONS 1. Presse hydraulique d'établi à hauteur variable, caractérisée en ce qu'elle est constituée d'un cric (FIG. 1) adap table en position inversée de fonctionnement, par la présence d'un tube de puisage dans le réservoir d'huile, d'un ressort de rappel de la tige du vérin et fixé à la partie supérieure mobile par l'intermédiaire de 2 coulisses et de 2 broches mobiles. 1. Hydraulic bench press with variable height, characterized in that it consists of a jack (FIG. 1) adap table in reverse operating position, by the presence of a drawing tube in the tank oil, of a return spring of the cylinder rod and fixed to the mobile upper part by means of 2 slides and 2 mobile pins. 2. Le dispositif selon la revendication 1 comprend une semelle inférieure (1) sur laquelle sont soudés 2 montants (2) perçés de 4 trous pour le passage des broches d'arrêt (3). Une semelle supérieure (5) maintient en position inversée un cric fixé par sa base (14) à l'aide de vis (8), les 2 coulisses (6) soudées sur la semelle supérieure (5) permettent le déplacement vertical du cric. 2. The device according to claim 1 comprises a lower sole (1) on which are welded 2 uprights (2) drilled with 4 holes for the passage of the stop pins (3). An upper sole (5) maintains in the inverted position a jack fixed by its base (14) using screws (8), the 2 slides (6) welded on the upper sole (5) allow the vertical movement of the jack. 3. Dispositif, selon la revendication 2, est caractérisé par la présence du bras de pompage (9) clipsé sur le côté d'une coulisse (6). 3. Device according to claim 2, is characterized by the presence of the pumping arm (9) clipped to the side of a slide (6). 4. Dispositif, selon l'une quelconque des revendications précédentes, est caractérisé par l'insertion d'un tube de puits t307 dans la base d'appui (14) permettant de puiser l'huile dans la réserve (27). 4. Device according to any one of the preceding claims, characterized by the insertion of a well tube t307 in the support base (14) making it possible to draw the oil from the reserve (27). 5. Dispositif de la revendication (1) caractérisé en ce que la tige (20) du cric après suppression de la pièce d'appui et de sa partie filetée est réalésée pour assurer le passage du ressort (29) et reçoit un embout (28) permettant à la tige (20) de remonter à l'aide du ressort de traction (29) en chassant l'huile vers la réserve (27). 5. Device of claim (1) characterized in that the rod (20) of the jack after removal of the support piece and its threaded part is bored to ensure the passage of the spring (29) and receives a tip (28 ) allowing the rod (20) to go back up using the tension spring (29) by expelling the oil towards the reserve (27). 6. Dispositif, selon la revendication 5, est caractérisé par le maintien en place du ressort (29) par une vis usinée (33) fixée par taraudage dans la base d'appui (14) et par une clavette cylindrique (34) en appui sur une entretoise en plastique (35). 6. Device according to claim 5, is characterized by holding the spring in place (29) by a machined screw (33) fixed by tapping in the support base (14) and by a cylindrical key (34) in support on a plastic spacer (35). Un joint circulaire (38) inséré dans l'embout (28) assure l'étanchéité de la tige (20), l'embout (28) est alésé et taraudé pour la la mise en place d'outillage ainsi que la semelle inférieure (1). A circular seal (38) inserted in the end piece (28) seals the rod (20), the end piece (28) is bored and tapped for the installation of tools as well as the bottom flange ( 1).
FR8517401A 1985-11-25 1985-11-25 VARIABLE HEIGHT BENCH HYDRAULIC PRESS Expired - Fee Related FR2590519B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8517401A FR2590519B1 (en) 1985-11-25 1985-11-25 VARIABLE HEIGHT BENCH HYDRAULIC PRESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8517401A FR2590519B1 (en) 1985-11-25 1985-11-25 VARIABLE HEIGHT BENCH HYDRAULIC PRESS

Publications (2)

Publication Number Publication Date
FR2590519A1 true FR2590519A1 (en) 1987-05-29
FR2590519B1 FR2590519B1 (en) 1990-02-02

Family

ID=9325127

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8517401A Expired - Fee Related FR2590519B1 (en) 1985-11-25 1985-11-25 VARIABLE HEIGHT BENCH HYDRAULIC PRESS

Country Status (1)

Country Link
FR (1) FR2590519B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325367A1 (en) * 1993-07-28 1995-02-02 Well Make Industry Co Device for compressing cans
EP0674980A1 (en) * 1994-03-29 1995-10-04 MASS S.p.A. Press for forming small-dimension ceramic pieces
US6805844B1 (en) * 2000-03-03 2004-10-19 Tennessee Valley Authority Reactor vessel, method and system for treating, sampling, and transporting toxic waste
CN108724060A (en) * 2017-11-13 2018-11-02 江苏核电有限公司 A kind of reactor coolant pump mechanical seal maintenance bearing and its application method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626158A (en) * 1926-05-27 1927-04-26 R E Scheurer Hydraulic jack
FR664601A (en) * 1928-03-06 1929-09-05 Andre Pellerin Ets Hydraulic pressure lifter
CH189931A (en) * 1936-08-24 1937-03-31 Girsberger Emil Hydraulic yoke press.
US2502072A (en) * 1946-11-06 1950-03-28 John H Bender Hydraulic press attachment and frame
DE1084003B (en) * 1956-08-16 1960-06-23 Wilhelm Koenig Jun Hydraulic jack
FR2560938A1 (en) * 1984-03-12 1985-09-13 Antkowiak Stephane Hydraulic jack operated by a hand pump which may or may not be incorporated to the jack.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1626158A (en) * 1926-05-27 1927-04-26 R E Scheurer Hydraulic jack
FR664601A (en) * 1928-03-06 1929-09-05 Andre Pellerin Ets Hydraulic pressure lifter
CH189931A (en) * 1936-08-24 1937-03-31 Girsberger Emil Hydraulic yoke press.
US2502072A (en) * 1946-11-06 1950-03-28 John H Bender Hydraulic press attachment and frame
DE1084003B (en) * 1956-08-16 1960-06-23 Wilhelm Koenig Jun Hydraulic jack
FR2560938A1 (en) * 1984-03-12 1985-09-13 Antkowiak Stephane Hydraulic jack operated by a hand pump which may or may not be incorporated to the jack.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
\LHYDRAULIK UND PNEUMATIK, vol. 5, no. 8, août 1961, page 283; *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325367A1 (en) * 1993-07-28 1995-02-02 Well Make Industry Co Device for compressing cans
EP0674980A1 (en) * 1994-03-29 1995-10-04 MASS S.p.A. Press for forming small-dimension ceramic pieces
US6805844B1 (en) * 2000-03-03 2004-10-19 Tennessee Valley Authority Reactor vessel, method and system for treating, sampling, and transporting toxic waste
CN108724060A (en) * 2017-11-13 2018-11-02 江苏核电有限公司 A kind of reactor coolant pump mechanical seal maintenance bearing and its application method
CN108724060B (en) * 2017-11-13 2023-10-20 江苏核电有限公司 Mechanical seal maintenance support for reactor coolant pump and application method of mechanical seal maintenance support

Also Published As

Publication number Publication date
FR2590519B1 (en) 1990-02-02

Similar Documents

Publication Publication Date Title
US3782689A (en) Control means for hydraulic jack
US6450481B1 (en) Toe jack
US4395027A (en) Pressure intensifying device
FR2590519A1 (en) Hydraulic press with variable height table
FR2356583A1 (en) BOTTLE HOLDER
CH681070A5 (en)
FR2802250A3 (en) Hydraulic power converter consists of main oil tank, hydraulic pumps, motor, and two-circuit hydraulic cylinder mechanism
US1990004A (en) Jack
US3581499A (en) Quick raise adapter
CN218601053U (en) Thin-wall long pipe body hydrostatic test device
US3130675A (en) Hydraulic hand pump
EP0667112A1 (en) Hydraulically-operated nutcracker
US3615157A (en) Hydraulic jack
FR3079766A1 (en) CLAMPING JACK WITH INTEGRATED ANTI-VIBRATION SUPPORT SYSTEM
ES2190411T3 (en) HYDRAULIC PRESS WITH IMPROVED CONTROL OF THE OLEODYNAMIC CIRCUIT.
CN111197661A (en) Gate valve
JP4904558B2 (en) Safety bicycle saddle cylinder-base
CN114279695A (en) Spacing system of detection tool
CN220956564U (en) Piston balancer with self-lubricating structure
RU15761U1 (en) VALVE-SHUT-OFF
JP3657387B2 (en) Thermal analysis sample container sealing jig
JP2007238067A5 (en)
FR3106179B1 (en) Hydraulic Fastener Installation Tool Pressure Relief Valve
FR2744175A1 (en) High=pressure fluid injection pump for geological tests
BE518563A (en)

Legal Events

Date Code Title Description
ST Notification of lapse
RC Opposition against decision of lapse
DA Annulment of decision of lapse
ST Notification of lapse