WO2010089270A1 - Soupape pour appareil de levage à vide - Google Patents

Soupape pour appareil de levage à vide Download PDF

Info

Publication number
WO2010089270A1
WO2010089270A1 PCT/EP2010/051160 EP2010051160W WO2010089270A1 WO 2010089270 A1 WO2010089270 A1 WO 2010089270A1 EP 2010051160 W EP2010051160 W EP 2010051160W WO 2010089270 A1 WO2010089270 A1 WO 2010089270A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
valve
vacuum
valve according
openings
Prior art date
Application number
PCT/EP2010/051160
Other languages
German (de)
English (en)
Inventor
Dieter Geissler
Original Assignee
J. Schmalz Gmbh
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 J. Schmalz Gmbh filed Critical J. Schmalz Gmbh
Priority to EP10702293A priority Critical patent/EP2393747B1/fr
Publication of WO2010089270A1 publication Critical patent/WO2010089270A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0212—Circular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0237—Multiple lifting units; More than one suction area
    • B66C1/0243—Separate cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0256—Operating and control devices

Definitions

  • the invention relates to a valve for a vacuum lifting device with two
  • Suction ports for two vacuum sources and two connections for two vacuum consumers which are provided for example in a suction device, and a four-terminal interconnecting handle
  • the four ports are provided on a two axial bores having tubular valve body on which the handle slidably is mounted adjustably between two end positions, the valve body for each bore has an axial partition and both sides of each partition, a radial opening are provided, and wherein the handle in one end position connects the openings together and seals in their other end position, the openings against each other, and wherein a radially movable push button is provided which locks the handle in at least one end position, and the push button is integrated in the handle and is moved when moving the handle.
  • a lifting device with a suction box is known, to which a handle is attached for manipulation of the suction box.
  • a ventilation valve is provided, which is designed as a slide.
  • a vacuum chamber which is connected via a hose to a vacuum source, and through which an object to be lifted is sucked in, ventilated, so that the object can be stored at the desired location.
  • This vent valve can also be provided directly in the handle, wherein the handle forms the tubular valve body and a handle is arranged displaceably or rotatable about this valve body, whereby the suction chamber can either be connected to the vacuum source or vented.
  • the handle In order to prevent accidental venting of the suction chamber and thereby an untimely ejection of the sucked object is the handle is locked in its suction position by a push-button obstructing the displacement of the handle. In order to release this lock, the push button is to be pressed in before the handle is actuated, whereby it is removed from the displacement path. However, there is a risk that the simultaneous pressing of the push button and moving the handle, the operator injured by the finger is trapped between the push button and the handle.
  • valve as is known from DE 20 2005 016 147 U1.
  • the push button is integrated into the handle and is moved when moving the handle.
  • the known valve therefore has the significant advantage that in the direction of the handle no relative movement between the push button and the handle longer exists, i. that the push button is moved together with the handle.
  • the push button only has to be pressed in to unlock the handle in its end position.
  • such valves are only for the ground-level lifting of loads, in which the center of gravity is not more than 1, 8 m above the ground, allowed.
  • the standard EN 13155 prescribes two redundant vacuum circuits. Their control has hitherto been realized by the use of two manual slide valves, wherein a valve is used for each vacuum circuit. For this purpose, two valves are arranged independently of each other, and the operator must operate both valves or the two valves are switched simultaneously via a higher mechanical entrainment.
  • the one suction function can be achieved only by operating two valves, each with two-way operation (pressing + pushing). Also the Mechanical coupling of two valves by a higher-level actuator represents a great technical effort. According to standard, the actuator should be executed here with a double operation.
  • the invention is therefore an object of the invention to provide a valve with which both vacuum circuits can be switched easily.
  • the valve according to the invention therefore has the significant advantage that both vacuum circuits can be opened and closed with a single handle and thus only a single valve must be pressed.
  • the operator has the other hand free e.g. for targeted guidance of the vacuum lifting device.
  • the valve according to the invention has two (or more) 3/2 way valves, which are actuated via a sliding nozzle, in particular at the same time.
  • the valve is fail-safe and ergonomically operated.
  • the functional equipment is analogous to DE 20 2005 016 147 111, but at least two 3/2-way valve are provided so that the required redundancy can be achieved. Since the application mainly relates to the lifting of heavy loads, such as windows and facade elements, and in these special cases to be sucked workpieces are absolutely tight, small cross sections are sufficient.
  • the push-button with spring return arranged sliding sleeve actuates both valves simultaneously, so that the two redundant vacuum circuits are always in the same position. Due to the coupled operation "pushing and pushing", the operator is not sure about the operation safety, because the integrated compression spring does not allow the system to remain on the path of travel, it is automatically guided to the safe position "suction" (NO (normally open) version).
  • the contact surface of the sliding sleeve of the hand adapted and executed crowned or barrel-shaped.
  • the controls are designed so large that the operation can also be done with work gloves.
  • this surface may be provided with a soft-touch structure.
  • the handle is manually, hydraulically or pneumatically adjustable.
  • the valve is also remotely controllable.
  • Figure 1 is a perspective view of a vacuum lifting device
  • Figure 2 is a circuit diagram of the vacuum circuits of the vacuum lifting device
  • FIG 3 shows a longitudinal section through a preferred embodiment of the valve according to the invention in the open position
  • Figure 4 shows a longitudinal section through the valve in the closed position.
  • Figure 1 shows a generally designated 10 vacuum lifting device, which has a support frame 12 to which a support arm 14 is pivotally and lockably attached.
  • a robot arm or another manipulation device engages on the support arm 14.
  • On the support frame 12 four booms 16 are also attached, to each of which two suction pads 18 and 20 are arranged, the suction side facing in Figure 1 down.
  • Within the support frame 12 components for vacuum generation, vacuum reservoirs and components for distributing the negative pressure are housed.
  • a circumferential handrail 22 can be seen, with which the vacuum lifting device 10 can be operated ergonomically.
  • a generally designated 24 valve which is mounted so that it easily by an operator can be grasped and operated with one hand.
  • FIG. 2 shows a circuit diagram of the vacuum circuits of FIG
  • Vacuum lifting device 10 Within the schematically illustrated support frame 12 is an electric drive 26 for a vacuum pump 28, the output 30 opens into a silencer 32 and the input 34 is connected via two check valves 36 with two vacuum accumulator 38.
  • the two check valves 36 and the two vacuum accumulators 38 are part of two independent vacuum circuits 40 and 42, which are required in vacuum lifting devices 10 for off-center lifting. In the following we will describe one of the two vacuum circuits 40, 42 in more detail, this description also applies to the other vacuum circuit.
  • the input 34 and the two vacuum circuits 40, 42 are monitored by vacuum switches 44 and 46.
  • a warning device 48 is integrated into the electrical circuit, which indicates malfunction acoustically and / or visually.
  • the vacuum switch 44 controls the electric drive 26 and the vacuum switch 46 controls the warning device 48.
  • the vacuum accumulator 38 are connected to the valve 24, which in turn are connected via filter elements 50 with the suction pads 18 and 20. Between the filter elements 50 and the individual suction pads 18 and 20 are still each a quick coupling 52. In addition, a pressure gauge 54 is connected to each vacuum circuit 40, 42.
  • FIG. 3 shows the valve 24 in its open or let-through position
  • FIG. 4 shows the valve 24 in its closed position
  • the valve 24 has a tubular valve body 56 which is surrounded by a handle 58.
  • the valve body 56 has two pipe sections 60 and 62, which are screwed together and sealed by two seals 64 and 66 (O-rings).
  • the valve body 56 is penetrated by two axial bores 68 and 70, both bores open at the free end 72 of the tube section 60 radially via two suction ports 6 and at the handle 58 located in the end of the bore 68 radially and the bore 70 opens axially out of the pipe section 60.
  • the two holes 68 and 70 open at the free end 74 of the pipe section 62 via terminals 8 radially.
  • the bore 68 opens at the end located in the handle 58 radially and the bore 70 axially from the pipe section 62.
  • the valve body 56 has a partition wall 76, with which the axial course of the bore 68, and a partition wall 78, with the axial course of the bore 70 is interrupted.
  • the pipe sections 60 and 62 have wall openings 80 to 86, via which the fluid radially out or is introduced into the valve body 56 ,
  • the handle 58 is in the illustrated embodiment in
  • valve body 56 Slidably mounted longitudinally displaceable on the valve body 56, wherein it can be arranged according to another embodiment, also rotatable in the circumferential direction.
  • the respective components and openings are then arranged correspondingly in the circumferential direction one behind the other on the handle 58 or on the valve body 56.
  • the handle 58 in FIG. 3 assumes a position in which the vacuum pump 28 is connected to the suction grippers 18 and 20. This position corresponds to the suction position.
  • the handle 58 has an inner circumferential groove 88, with which the wall openings 80 and 82 are pneumatically connected to each other.
  • the handle 58 has an inner circumferential groove 94, with which the wall openings 84 and 86 are pneumatically connected to each other.
  • Inner circumferential grooves 88 and 94 are laterally offset relative to the positions shown in FIG 3, i. are arranged next to the partitions 76 and 78.
  • the wall openings 80 and 82 and the wall openings 84 and 86 can therefore not be interconnected. Rather, the wall opening 82 is connected via a radial ventilation opening 100 in the handle 58 with the environment, so that via the bore 68 in the pipe section 62 fluid can flow, which is shown by the arrow 102.
  • the free end 74 facing the free end 104 of the handle 58 is dimensioned and provided with an undercut 106 that the wall opening 86 opens into the undercut 106 and is connected to the environment when, as shown in Figure 4, the Handle 58 is in its closed position. In this way, fluid can flow in through the bore 70 in the tube section 62, which is represented by the arrow 108.
  • the handle 58 has in the region of its free end 110 to a radial stepped bore 112 into which a push button 114 is inserted captive radially from the inside.
  • the push button 114 projects beyond the outside in such a way that it can be pressed radially into the handle 58 with the thumb, for example.
  • a cup-shaped locking element 118 At the radially inner end 116 of the push button 114 is a cup-shaped locking element 118, which in turn is mounted in a radial blind hole 120 in the valve body 56.
  • the cup-shaped locking element 118 surrounds a compression spring 122 which urges the locking element 118 radially outward and in the direction of the push button 114, wherein the locking element 118 engages partially in the handle 58 and locks it.
  • Figure 3 shows the handle 58 in a position in which the vacuum pump 28 is connected to the suction pads 18 and 20, i. E. a negative pressure in the vacuum circuits 40 and 42 prevails.
  • This position of the handle 56 is locked by engagement of the locking element 118 in the stepped bore 112. If the push button 114 is pressed radially, then the locking element 118 is released from the stepped bore 112 and the handle 56 can be moved to the left in its other end position. In this position, a second blocking element 124 is aligned with the stepped bore 112, so that upon release of the push button 114, the blocking element 124 is displaced by the compression spring 126 into the blind hole 120. This position of the handle 58 is then also locked.
  • the locking element 124 is pushed radially so far until it comes free from the stepped bore 112 and the handle 58 can be moved to the right.
  • the displacement of the handle 58 is automatic, since a compression spring 130 is supported on a support collar 128, which rests against an inner peripheral collar 132 of the handle 58 and moves it to the right.
  • the locking member 118 engages the stepped bore 112 and the handle 58 takes its end position for the suction and is locked in this.
  • the executed displacement position does not change automatically into an end position.
  • the valve 24 according to the invention therefore has the significant advantage that during displacement (or twisting) of the handle 58, the push button 114 is also displaced (or twisted) and thus a risk of entrapment is avoided.
  • the valve 24 has the advantage that its end positions for sucking and venting are lockable end positions and that the handle 58 is moved due to the forced displacement via the compression spring 130 is moved to the end position for sucking. Intermediate positions between these end positions are not possible because the handle 58 is moved from any undefined intermediate position in any case in the end position for sucking and locked there. Without operating the push button 114, the handle 58 can not be moved from this end position. Accidental venting of the suction pads 18 and 20 is therefore not possible. With the valve 24 according to the invention can therefore with a single

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Manipulator (AREA)

Abstract

L'invention concerne une soupape (24) pour un appareil de levage à vide (10), comprenant deux raccords d'aspiration (6) pour deux sources de dépression (38) et deux raccords (8) pour deux consommateurs à dépression (18, 209), agencés par exemple dans un dispositif d'aspiration, ainsi qu'une poignée (58) (68,70) reliant les quatre raccords (6-8) les uns aux autres. Les quatre raccords sont agencés sur un corps de soupape (56) tubulaire qui présente deux trous axiaux et sur lequel la poignée est montée de façon à pouvoir être déplacée entre deux positions finales, le corps de soupape présentant pour chaque trou une paroi de séparation axiale (76,78) et des ouvertures radiales (80, 86) étant ménagées des deux côtés de chaque paroi de séparation. La poignée relie les ouvertures dans sa première position finale et assure l'étanchéité des ouvertures l'une par rapport à l'autre dans sa seconde position finale, un bouton-poussoir radialement mobile (114) étant agencé de manière à bloquer la poignée dans au moins une position finale, et le bouton-poussoir étant intégré à la poignée et déplacé conjointement avec la poignée. En outre, les parois de séparation sont agencées de manière axialement décalées et des canaux de trop-plein sont disposés dans la poignée, dans la zone des parois de séparation, de manière à relier les ouvertures.
PCT/EP2010/051160 2009-02-04 2010-02-01 Soupape pour appareil de levage à vide WO2010089270A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10702293A EP2393747B1 (fr) 2009-02-04 2010-02-01 Soupape pour appareil de levage à vide

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009008203.4 2009-02-04
DE200910008203 DE102009008203B3 (de) 2009-02-04 2009-02-04 Ventil für ein Vakuum-Hebegerät

Publications (1)

Publication Number Publication Date
WO2010089270A1 true WO2010089270A1 (fr) 2010-08-12

Family

ID=41795349

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/051160 WO2010089270A1 (fr) 2009-02-04 2010-02-01 Soupape pour appareil de levage à vide

Country Status (3)

Country Link
EP (1) EP2393747B1 (fr)
DE (1) DE102009008203B3 (fr)
WO (1) WO2010089270A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022132993A1 (de) 2022-12-12 2024-06-13 Timmer Gmbh Vakuum-Hebevorrichtung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010008290U1 (de) * 2010-08-16 2011-12-22 Winden- Und Maschinenbau Gressbach Gmbh Saugvorrichtung zum Anheben eines Werkstücks mittels Unterdruck
EP2460757B1 (fr) * 2010-12-02 2013-03-27 Albert Fezer Maschinenfabrik GmbH Dispositif de retenue sous vide
DE202016101453U1 (de) * 2016-03-16 2017-06-19 KS CONTROL Schneider/Ruhland GmbH Vorrichtung zum Aufnehmen, Halten- und/oder Positionieren von flächigen Werkstücken, insbesondere Glasplatten
CN106144875A (zh) * 2016-08-25 2016-11-23 上海涵勋自动化设备有限公司 一种无线遥控真空吸吊机
CN109795943A (zh) * 2019-02-13 2019-05-24 陈金芽 一种高空作业玻璃吊装设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2249044A1 (de) * 1971-10-07 1973-04-12 Hoogovens Ijmuiden Bv Vorrichtung zum versetzen schwerer gegenstaende
DE3618704C1 (en) 1986-06-04 1990-06-21 Kurt Dr Schmalz Lifting device with a suction box
DE202005016147U1 (de) 2005-10-07 2005-12-22 J. Schmalz Gmbh Ventil für ein Vakuum-Hebegerät
WO2007094720A1 (fr) * 2006-02-17 2007-08-23 Pronomic Ab Dispositif de levage par aspiration

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995012541A1 (fr) * 1993-11-04 1995-05-11 Comalco Aluminium Limited Dispositif de levage par le vide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2249044A1 (de) * 1971-10-07 1973-04-12 Hoogovens Ijmuiden Bv Vorrichtung zum versetzen schwerer gegenstaende
DE3618704C1 (en) 1986-06-04 1990-06-21 Kurt Dr Schmalz Lifting device with a suction box
DE202005016147U1 (de) 2005-10-07 2005-12-22 J. Schmalz Gmbh Ventil für ein Vakuum-Hebegerät
WO2007094720A1 (fr) * 2006-02-17 2007-08-23 Pronomic Ab Dispositif de levage par aspiration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022132993A1 (de) 2022-12-12 2024-06-13 Timmer Gmbh Vakuum-Hebevorrichtung

Also Published As

Publication number Publication date
EP2393747A1 (fr) 2011-12-14
EP2393747B1 (fr) 2012-12-19
DE102009008203B3 (de) 2010-04-08

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