EP2787165A1 - Cylindre de soutènement et agencement de coffrage pour un cylindre de soutènement - Google Patents

Cylindre de soutènement et agencement de coffrage pour un cylindre de soutènement Download PDF

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Publication number
EP2787165A1
EP2787165A1 EP13162325.8A EP13162325A EP2787165A1 EP 2787165 A1 EP2787165 A1 EP 2787165A1 EP 13162325 A EP13162325 A EP 13162325A EP 2787165 A1 EP2787165 A1 EP 2787165A1
Authority
EP
European Patent Office
Prior art keywords
locking
cylinder
cone
support
piston
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
EP13162325.8A
Other languages
German (de)
English (en)
Other versions
EP2787165B1 (fr
Inventor
Reiner Kern
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.)
KERN TUNNELTECHNIK SA
Original Assignee
Kern Tunneltechnik SA
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.)
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Publication date
Application filed by Kern Tunneltechnik SA filed Critical Kern Tunneltechnik SA
Priority to EP13162325.8A priority Critical patent/EP2787165B1/fr
Publication of EP2787165A1 publication Critical patent/EP2787165A1/fr
Application granted granted Critical
Publication of EP2787165B1 publication Critical patent/EP2787165B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B66F3/30—Constructional features with positive brakes or locks
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/102—Removable shuttering; Bearing or supporting devices therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/20—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals

Definitions

  • the present invention relates to a support cylinder which is used in particular for formwork arrangements, in particular for tunneling.
  • a support cylinder includes a cylinder, a piston movable therein as well as a locking device arranged on the cylinder, by means of which the piston can be locked in a defined position relative to the cylinder.
  • Such support cylinders take in tunneling large loads, which is why it is necessary to lock a defined position, usually the extended end position of the cylinder by a locking device so that a further support can be done without pressurization of the hydraulic support cylinder.
  • the locking device has an actuating device, for example a hydraulic actuating cylinder, with an actuating element.
  • the adjusting element for example an actuating piston, is movable with a movement component transversely to the axis of the support cylinder between a release position and a locking position.
  • the expression "with a component of movement transverse to the axis of the support cylinder” is to be understood that for a locking of the piston by the actuator is required that the actuator at least one component of movement transverse to the support cylinder, otherwise it would not interact with the piston of the support cylinder.
  • the direction of movement of the actuating element is transverse to the support cylinder.
  • the locking element projects into the range of movement of the piston and penetrates with its locking cone a receiving bore in the piston.
  • the receiving bore is complementary to the locking cone of the adjusting element, or has complementary to the locking cone formed receiving surfaces, so that a positive connection between the locking cone and the piston over a large area is achieved, thus allowing a corresponding application of force to the support cylinder. Due to the conical shape, the actuator can be easily moved into its locking position and withdrawn from its locked position back to its release position.
  • the inventive design of the support cylinder thus allows easy locking and releasing the piston of the support cylinder.
  • the locking cone passes through the receiving bore of the piston in the locking position completely.
  • the locking device has a formed on the cylinder and the adjusting element opposite cone seat, which is designed to receive the end of the locking cone in its locking position.
  • the locking cone is thus held in the locking position at one end by the adjusting device and at its free end by the cone seat, so that the locking cone is mounted on both sides of the piston, whereby the locking cone is able to absorb extremely high forces.
  • the conical seat has a conical bearing surface, as the name Kegelability already says, is also from this Position a slight retraction of the actuator in the release position possible.
  • the cone receptacle has a display device which indicates the reaching of the locking position of the locking cone.
  • a display device can be formed in the simplest form, a glass plate at the end of the cone seat, through which the engagement of the locking cone in the bearing surface of the cone seat is visible. It can also be formed by a resiliently biased in the direction of the locking cone display part, which is pushed out in the locking position of the locking cone from the cone seat, so that a display portion of the display part protrudes from the conical seat.
  • Such a display part may for example be a bolt which is held on an end plate of the cone seat and biased by a coil spring against the locking cone.
  • the locking cone spring When the locking cone springs into its locking position, it pushes the piston against the spring force to the outside, so that a part of the bolt, which is preferably the bolt head or a bolt groove, is pressed outwards.
  • the protruding from the cone seat portion of the bolt clearly indicates that the locking cone has reached its locking position. In this way it can be reliably verified that a correct locking position has been achieved by the locking cone.
  • the hydraulic pressure can be removed from the support cylinder, since the force acting on the support cylinder high forces after removal of the Hydraulic pressure can be intercepted by the locking cone of the locking device.
  • a conical support surface for the locking cone in the locking position is formed on the cylinder on the side of the adjusting device. This causes the locking cone in the locking position is not supported on the adjusting device but on the cylinder wall of the support cylinder, which is designed for receiving high forces. The adjusting device is thereby relieved and can be functionally designed solely for moving the locking cone.
  • the locking cone or locking piston is preferably mounted in the locking position on both sides of the piston on complementary support or bearing surfaces on the cylinder. In this way, the actuator itself is not burdened with the forces acting on the locking cone supporting forces of the support cylinder.
  • the support surfaces may be formed on the cylinder wall itself or attached to the cylinder, e.g. by means of welded or mounted bearing elements.
  • the adjusting device preferably comprises a hydraulic actuating cylinder, in which an actuating piston forms the actuating element. Since in tunneling most of the functional elements are actuated anyway via hydraulic pressure, such as the support cylinder itself, so it makes sense to realize the adjusting device of the locking device by a hydraulic actuating cylinder with the associated hydraulic control.
  • the adjusting device could also be an electromotive adjusting device, in which the adjusting element is then movable, for example via a spindle drive between its release position and locking position.
  • the adjusting device could also be electromotive or electromagnetic.
  • the adjusting device is arranged transversely to the axis of the support cylinder, that is such that the direction of movement of the locking cone extends transversely to the cylinder axis of the support cylinder. In this way, the travel between the release position and the locking position is minimized and on the other hand, a reliable power absorption of the force acting on the piston support force by the locking cone possible, especially if the locking cone is mounted on both sides of the piston to the cylinder.
  • the invention also relates to a formwork arrangement which is designed in particular for tunneling, which formwork arrangement contains at least one hydraulic support cylinder as described above, which support cylinder is used for the movable support of at least one formwork part against a support arrangement of the formwork arrangement.
  • a formwork arrangement is on the one hand able to drive the shuttering parts relatively quickly into their end position for casting the tunnel walls, wherein the end position can be locked in a simple manner.
  • a grease nipple may still be formed in the taper receptacle, which allows the introduction of grease.
  • the cooperating with the piston parts of the locking device can be easily held without having to dismantle parts of the support cylinder. This cooperates in particular with the conical shape of the locking cone and the conical support and bearing surfaces.
  • Fig. 1 1 shows a formwork arrangement 10 for the construction of a tunnel 12, which formwork arrangement 10 comprises a support arrangement 14 and a plurality of support cylinders 16, which support arrangement and supporting cylinder formwork parts 26, 28 for support at points of support 20, 22, 24 against the tunnel 12, so that Interspace between the tunnel 12 and the formwork parts 26, 28 can be back-injected with concrete, so as to form a tunnel tube.
  • the support cylinder 16 is subsequently in the Fig. 2 and 3 described in more detail.
  • Fig. 2a shows the support cylinder 16 Fig. 1 in a collapsed position, Fig. 2b in disassembled support position.
  • the support cylinder 16 includes a cylinder 30 having a first attachment portion 32 at the free end and a piston 34 axially displaceable therein with a second attachment portion 36 at its free end.
  • a locking device 39 is formed, which comprises a transverse to the support cylinder 16 arranged hydraulic adjusting cylinder 42, in which a control piston 44 is movable.
  • the piston 44 On its side facing the support cylinder 16, the piston 44 is connected via an actuating rod 64 with a locking cone 46.
  • the piston 34 of the support cylinder 16 has a receiving bore 48 which passes through the piston 34 in the direction of movement of the adjusting cylinder 42.
  • the locking device 39 further has a formed on the cylinder 30 and the hydraulic actuating cylinder 42nd opposite cone seat 50, which has a conical bearing surface 71 for receiving the free end of the locking cone 46 in the locking position of the locking cone.
  • This locking position is in Fig. 2b shown when the hydraulic cylinder is extended to its maximum stroke.
  • the receiving bore 48 of the piston need not necessarily be arranged in the maximum extended position of the support cylinder 16.
  • a plurality of receiving bores 48 may be arranged at different axial positions in the piston, so that the piston can be locked in different axial positions relative to the cylinder 30. In his in Fig.
  • the locking cone 46 is fixedly mounted both on the piston 34 of the support cylinder 16 and on the cylinder 30 on both opposite sides of the piston 34, on the actuating cylinder side conical support surface 52 and on the conical bearing surface 71st the cone recording.
  • the piston is securely supported on both sides by the locking cone.
  • the two-point support of the locking cone 46 on the conical support surface 52 and the conical bearing surface 71 of the conical receptacle 50 allows in cooperation with the receiving bore 48 in the piston recording very high loads, as they are common in formwork, especially in supporting the formwork parts in tunneling.
  • the interaction of locking device 39 and support piston 16 is in the detailed view of Fig. 3 especially clear.
  • the hydraulic actuating cylinder 42 has a cylinder section 54, in which the actuating piston 44 is axially movable.
  • the actuating piston 44 is actuated by a hydraulic pressure control 56 which selectively directs hydraulic fluid into a first pressure chamber 58 or into a second pressure chamber 60.
  • the cylinder portion 54 is closed by a fixed end cap 62.
  • an actuating rod 64 is connected, which protrudes through the end cap 62 and is connected there to the locking cone 46.
  • the actuator is thus formed here by the actuator piston 44 and the actuating rod 64 in conjunction with the locking cone.
  • the end cap 62 guides the actuating rod 64.
  • the locking cone 46 is shown in the release position.
  • the hydraulic actuating cylinder 42 is connected via a cylinder portion 40 with a connecting tube 66 with a flange 68 on the cylinder 30 of the support cylinder 16.
  • the cylinder portion 40 receives the locking cone 46 in the release position, so that it does not collide with the piston 34 of the support cylinder.
  • the conical support surface 52 is arranged in the region of the flange 68 of the cylinder 30, the conical support surface 52 is arranged.
  • the conical support surface 52 is aligned in a corresponding position of the piston 34 with conical receiving surfaces 68, 70 in the receiving bore 48 of the piston 34.
  • These receiving surfaces 68, 70 are formed in the piston wall.
  • the hollow interior of the piston can be seen in the drawing by the rectangle 72, in which no support function is realized.
  • the conical support surface 52 is further aligned with the conical bearing surface 71 in the cone seat 50, which is arranged on the hydraulic adjusting cylinder 42 opposite side of the support cylinder 16.
  • the conical support surface 52 on the side of the hydraulic actuating cylinder 42, the conical receiving surfaces 68 and 70 in the piston skirt and the conical bearing surface 71 of the cone receptacle 50 thus form a receptacle which is formed or shaped exactly complementary to the locking cone 46 of the actuating element 44, 64 is.
  • the locking cone thus in his Latches locking position in the cone seat 50, he is vollfilumbleig on the conical support surface 52, to the conical receiving surfaces 68, 70 of the piston 34 and in the conical bearing surface 71 of the conical receptacle 50 at.
  • the locking cone 46 presses with its free end 74 against a pin 76 which is held on an end plate 78 in the axial extension of the cone seat 50 and biased by a coil spring 80 to the support cylinder 16 out.
  • the position of the piston is limited by the bolt head 82, which bears against the end plate 78 on the outside. Now drives the locking cone in his Fig.
  • a plurality of through-bores 48 may be formed in the piston for cooperation with the locking cone 46, which through-bores 48 are arranged at axially different positions of the piston 34 but parallel to each other.
  • an electromotive or electromagnetic actuator may be used to reciprocate the locking cone 46 between its release position and locked position.
  • the locking device with its movement axis does not have to be arranged exactly perpendicular to the support cylinder 16, but that the movement axis for the hydraulic adjustment cylinder 42 can deviate in many areas from the 90 ° orientation to the support cylinder.
  • the angle of the direction of movement of the hydraulic actuating cylinder 42 can thus vary, for example, in a direction between 65 ° and 115 ° relative to the axis of the support cylinder 16.
  • the display device which is formed in the present case by the resiliently biased pin 76, also may simply be formed by the fact that instead of the end plate 78, a glass plate is formed, is visible through when the free end 74 of Locking cone 46 is retracted into the conical bearing surface 71 of the cone seat 50 and thus lies just behind the glass.
  • the display device can also be formed by an electrical device, for example a position switch in connection with an electrical signaling device.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Actuator (AREA)
EP13162325.8A 2013-04-04 2013-04-04 Cylindre de soutènement et agencement de coffrage pour un cylindre de soutènement Active EP2787165B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13162325.8A EP2787165B1 (fr) 2013-04-04 2013-04-04 Cylindre de soutènement et agencement de coffrage pour un cylindre de soutènement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13162325.8A EP2787165B1 (fr) 2013-04-04 2013-04-04 Cylindre de soutènement et agencement de coffrage pour un cylindre de soutènement

Publications (2)

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EP2787165A1 true EP2787165A1 (fr) 2014-10-08
EP2787165B1 EP2787165B1 (fr) 2016-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863686A (zh) * 2016-04-27 2016-08-17 福州市尊品建设工程有限公司 仰拱模板吊装行走台车
CN111997666A (zh) * 2020-08-26 2020-11-27 甘肃路桥建设集团有限公司 一种液压缸动力式临时支撑体
CN114961809A (zh) * 2022-06-21 2022-08-30 中国十九冶集团有限公司 一种基于隧道洞口施工用的支撑装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203843C (fr) *
US2432076A (en) * 1941-10-28 1947-12-02 Rothery James Stewart Hydraulic ram
DE971121C (de) * 1948-10-02 1958-12-11 Alexander Schmidt Dr Ing Zweiteiliger eiserner Grubenstempel
DE1064710B (de) * 1954-08-19 1959-09-03 Josef Boessner Schalungseinrichtung zum Betonieren von Tonnengewoelben, Tunnels, Stollen oder Schaechten
US3173659A (en) * 1963-04-29 1965-03-16 George T Hemmeter Safety lift
US3706441A (en) * 1970-05-22 1972-12-19 Dudley Norman Forbes Jacking devices
DE2252308A1 (de) * 1971-12-31 1973-07-19 Tatabanyai Szenbanyak Verfahren und einrichtung fuer den aktiven mechanisierten ausbau von streckenvortrieben, tunnels oder anderen aehnlichen grubenraeumen und unterirdischen objekten

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE203843C (fr) *
US2432076A (en) * 1941-10-28 1947-12-02 Rothery James Stewart Hydraulic ram
DE971121C (de) * 1948-10-02 1958-12-11 Alexander Schmidt Dr Ing Zweiteiliger eiserner Grubenstempel
DE1064710B (de) * 1954-08-19 1959-09-03 Josef Boessner Schalungseinrichtung zum Betonieren von Tonnengewoelben, Tunnels, Stollen oder Schaechten
US3173659A (en) * 1963-04-29 1965-03-16 George T Hemmeter Safety lift
US3706441A (en) * 1970-05-22 1972-12-19 Dudley Norman Forbes Jacking devices
DE2252308A1 (de) * 1971-12-31 1973-07-19 Tatabanyai Szenbanyak Verfahren und einrichtung fuer den aktiven mechanisierten ausbau von streckenvortrieben, tunnels oder anderen aehnlichen grubenraeumen und unterirdischen objekten

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105863686A (zh) * 2016-04-27 2016-08-17 福州市尊品建设工程有限公司 仰拱模板吊装行走台车
CN111997666A (zh) * 2020-08-26 2020-11-27 甘肃路桥建设集团有限公司 一种液压缸动力式临时支撑体
CN114961809A (zh) * 2022-06-21 2022-08-30 中国十九冶集团有限公司 一种基于隧道洞口施工用的支撑装置
CN114961809B (zh) * 2022-06-21 2023-03-03 中国十九冶集团有限公司 一种基于隧道洞口施工用的支撑装置

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