EP3927893A1 - Hubantrieb für ein schienengeführtes freivorbaugerät - Google Patents
Hubantrieb für ein schienengeführtes freivorbaugerätInfo
- Publication number
- EP3927893A1 EP3927893A1 EP20709479.8A EP20709479A EP3927893A1 EP 3927893 A1 EP3927893 A1 EP 3927893A1 EP 20709479 A EP20709479 A EP 20709479A EP 3927893 A1 EP3927893 A1 EP 3927893A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- fixing
- lifting
- lifting device
- main frame
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
-
- 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
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G3/34—Mobile scaffolds; Scaffolds with mobile platforms characterised by supporting structures provided on the roofs
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
- E04G2003/283—Mobile scaffolds; Scaffolds with mobile platforms mobile horizontally
Definitions
- the invention relates to a lifting drive for a rail-guided cantilever device, in particular for use in bridge construction, the cantilever construction device comprising a main frame guided by at least one rail for receiving at least one formwork.
- the invention further relates to a rail-guided cantilever cantilever device comprising a lifting drive according to one of the preceding claims, and a method for displacing a rail-guided cantilever cantilever device, in particular for use in bridge construction, with this lifting drive.
- a previously known lifting drive with hydraulic cylinder is described in German laid-open specification DE 10 2007 047 443 A1 on a formwork arrangement for cantilevered bridges.
- Cantilever devices are used, for example, in the construction of bridges.
- the cantilever devices are usually moved on rails, for example from a bridge pier that has already been concreted, in order to then continue concreting the bridge. If there is even a slight slope or a bridge inclination, the cantilever device can constantly move in an uncontrolled manner and in the worst case fall.
- plain bearings are considered to be advantageous compared to the roller bearings used up to now, since with roller bearings even with small bridge radii there is the risk that the rollers will get out of the rail provided for them and run into flanges or the like, for example (paragraph [0007], Lines 1-10).
- the disadvantage of the plain bearing solution is that the coefficient of sliding friction is dependent on factors influencing the friction. For example, if there is ice, oil, dirt and / or water on the contact points of the sliding bearing components, the friction can be reduced to such an extent that the required braking effect is no longer guaranteed.
- the sliding components are subject to a wear that is higher than that of a roller or roller bearing.
- the object of the present invention is to provide a Huban drive for a rail-guided cantilevered cantilever device, which enables the cantilevered cantilever unit to be moved safely with little friction and without the risk of uncontrolled movement of the cantilevered cantilever unit, especially when a structure is inclined greater than 2 °.
- a simple and compact lifting drive is to be provided with which the cantilevered cantilever device can be safely moved both forwards and backwards in such a way that the lifting drive or cantilevered cantilever unit does not need to be converted and a person is not in the immediate vicinity Must be in the danger area of the lifting drive or the cantilever device.
- a lifting drive for a rail-guided cantilever cantilever device in particular for use in bridge construction
- the cantilever construction device comprising a main frame guided by at least one rail for receiving at least one formwork, with a lifting device, with a first end of the lifting device is designed to be connected to the main frame, and a second end of the lifting device opposite the first end when the first end of the lifting device is connected to the main frame is movable relative to the main frame, with a first fixing device connected to the first end of the lifting device is connected and designed to fix the first end of the lifting device with respect to the at least one rail, and with a second fixing device, which is connected and designed with the second end of the lifting device, the second end of the lifting device with respect to the at least one Rail to fixi eren, wherein the first and second fixing devices are each reversibly releasably fixable with respect to the at least one rail.
- the first end of the lifting device is designed to be connected to the main frame directly or indirectly, for example via the first fixing device. So if the main frame is connected to the first Fixiervor direction and the first fixing device is connected to the first end of the lifting device, the first end of the Hubvorrich device is designed to be indirectly connected to the main frame or to be indirectly attached to the main frame .
- the first fuser device can be connected directly to the first end of the lifting device or to the main frame, provided that this is connected to the first end of the lifting device.
- the rail can also be connected to a fixing rail via one or more connecting components, which preferably runs parallel to the at least one rail, the first fixing device via one or more Coupling element with which is connected to the first end of the lifting device and can be fixed relative to the fixing rail.
- the fixing rail enables the lifting drive according to the invention to be retrofitted to a conventional lifting drive with a locking head.
- one or more components can be present between the second fixing device and the second end of the lifting device, as long as the second fixing device is connected to the second end of the lifting device in such a way that it relates to the second end of the lifting device, and thus the cantilever device Lich can fix at least one rail.
- the second fixing device which can be connected to the second end of the lifting device via one or more coupling elements, can be fixed to the fixing rail connected to the at least one rail by means of one or more connecting components.
- the connection of the first and second fixing devices to the ends of the lifting device can be reversibly releasable, for. B. as a screw connection, or irreversibly detachable, e.g. B.
- the Hubvor direction is designed to hold the cantilever device.
- the first end cannot be an end of a cylinder of the lifting device or an end of a piston of the lifting device.
- the lifting drive can also be used in tunnel construction or in climbing construction.
- the lifting device can be fixed / fastened with respect to the at least one rail by the first fixing device and / or the second fixing device
- the cantilever device when the cantilever device is connected to the first end of the lifting device, the cantilever device can be moved safely without that the cantilever device can set itself in motion independently, for example due to an inclination of the bridge to be built, in or against the direction of travel.
- the bridge has a high pitch, i.e. Bridge inclinations greater than 2 °, which corresponds to 3.5%, can be avoided and / or braked by one or both of the first and second fixing devices, an uncontrolled movement of a roller or roller bearing cantilever device.
- the first and second fixing devices therefore form a braking system for the secure displacement of the cantilever device.
- the braking system prevents uncontrolled movement, for example sliding or slipping, of the cantilever device. It is not necessary to intervene in the bearing of the cantilever device. Since only two fixing devices have to be attached to the lifting device, which fix the lifting device in each case with respect to the rail, the lifting drive is simple and compact.
- the lifting device can be attached to the second end of the rail when the with the first end connected main frame is moved due to an extension or retraction of the lifting device.
- the main frame can then be attached to the rail via the first fixing device and the second fixing device can be detached from the rail in order to enable the lifting device to be moved in or out without moving the main frame.
- the lifting device can then be used again to move the main frame.
- the main frame is therefore always fixed by one of the two fixing devices with respect to the rail during the displacement in such a way that the cantilevered cantilever device can be safely moved without the cantilevered cantilever device being able to move in an uncontrolled manner.
- the first and second fixing devices acting as a braking system do not intervene in the bearing of the cantilever construction device, but are each connected to one of the two ends of the lifting device. Therefore, the cantilever device can be safely moved, regardless of its storage, even with high longitudinal inclinations of the bridge greater than 2 °, corresponding to 3.5%. This applies to both forwards and backwards travel, whereby a conversion of the lifting drive or the cantilever device is not required.
- the fixing devices can, for example, be controlled hydraulically.
- the controlled movement of the cantilever device is ensured according to the invention by fastening each of the two fixing devices with respect to the rail by positive or non-positive locking.
- a plain bearing which is why it can be safely moved on rollers or rollers so that agents that influence friction, such as ice, oil, dirt, water, do not affect the braking process of the cantilever device.
- the movement of the cantilevered cantilever device can take place with minimal friction using rollers and can be easily controlled via a lifting movement of the Hubvor direction. If the plain bearing is omitted, wear parts such.
- B. sliding components such as sliding plates away.
- the efficiency of the arrangement of the lifting drive and cantilever device can be increased due to the lower friction. Even the friction of a roller or roller bearing can be reduced, since uncontrolled movement of the cantilever device can be avoided solely by the lifting drive according to the invention with two fixing devices. As the bearing friction decreases, the loss of efficiency of the arrangement of the lifting drive and cantilever device increases, since less energy has to be used to move the cantilever device.
- a form-fitting fixation of the first and / or second fixing device (s) with respect to the rail e.g. B. by means of a wedge which engages in a recess or depression in the rail, against a force-locking fixation, for. B.
- the lifting device is fixed with respect to the at least one rail in such a way that when the first end of the lifting device is moved in a direction relative to the at least one rail to move the main frame relative to the at least one rail, the second fixing device is fixed with respect to the at least one rail is fixed, and that during a lifting movement of the second end of the lifting device in one direction relative to the at least one rail, the first fixing device is fixed with respect to the at least one rail.
- a given stroke of the lifting device can be used effectively to move the main frame and thus the cantilever device.
- the Hubvor direction is extended to move the main frame relative to the rail to ver, and with the main frame resting relative to the rail is moved in to perform the next stroke.
- the lifting device and the fixing devices thus form a caterpillar to which the main frame is connected and which is designed to execute a caterpillar movement relative to the rail, in particular in order to move the main frame relative to the rail.
- the main frame can be guided over a roller or roller bearing of the at least one rail, the first and second Fixiervorrichtun conditions according to the invention in the same or the same form are made.
- Corresponding designs of the two fixing devices allow a cost-effective and simplified structure of the fixing devices compared to different designs. Roller and roller bearings offer a lower coefficient of friction than plain bearings.
- identical designs of the fixing devices allow series or mass production and are also advantageous for safety reasons, since only one fixing device has to be certified.
- the first and second fixing devices can each be fixable with respect to the at least one rail by means of a form fit and / or force fit, in particular can be fastened to the rail and / or to at least one fixing rail connected to the rail.
- a slide bearing can then be dispensed with and a safe and friction-minimized shifting on rollers or cylinders is possible.
- At least one of the fixing devices advantageously comprises at least one fixing layer or one fixing element, for example a brake lining, for resting on the at least one rail or on the at least one fixing rail connected to the rail in the fixed state.
- An unlocking lifting device e.g. B. a pneumatic or hydraulic flub device is set up here with the fixing layer or the fixing element and an elastic means, for. B. one or more plate or leaf springs to work together in such a way that the fixing layer or the fixing element rests against the at least one rail or the at least one fixing rail connected to the rail for fixing the fixing device when the unlocking device is retracted and / or is out of order.
- a simply constructed, reliable and inexpensive to adjust self-locking fixing device which is fixed without control, which increases the safety on the construction site.
- At least one of the fixing devices preferably comprises at least one latching / snap element, for example in the form of a pawl or hinged latch, the at least one rail or fixing rail comprising recesses and / or depressions in its longitudinal direction into which the at least one latch / snap element can intervene to fix the fixing device with respect to the at least one rail.
- each fixing device can comprise a bracket which is designed to engage under a collar which is present in the longitudinal direction on one side of the rail or fixing rail. The end of the bracket engaging under the collar is designed to be able to be connected to the collar in a non-positive manner, e.g. B.
- a length of a stroke of the lifting device is selected to be greater than or equal to a distance from the recesses and / or depressions lying next to one another in the longitudinal direction of the at least one rail or fixing rail, so that the length of the stroke is sufficient when the fixing device is fixed with respect to the at least one rail to move the main frame by the distance between the adjacent recesses and / or depressions.
- the recesses and / or depressions have the same spacings over a length of the at least one rail or fixing rail or a part thereof. The distance between adjacent recesses and / or depressions is then selected so that each of the recesses and / or depressions can be used by the fixing devices to fix or "support" the lifting device on the rail.
- the fixing device preferably comprises at least one manual, hydraulic, pneumatic or electromotive lifting device for executing a linear translational movement, which is designed to ensure reversible engagement of the at least one latching / snap-in element in the recess or depression of the at least one rail or fixing rail .
- This lifting device can be used to raise and lower a pawl, that is, to loosen the pawl from and to fasten it the latch on the rail or fixing rail.
- An electric lifting device allows a more flexible control compared to a hydraulic lifting device, but requires site power, which is why hydraulic and pneumatic lifting devices are often preferred over electric lifting devices. It is advantageous that a hydraulic / pneumatic lifting device can be exchanged for an electric lifting device or an electric lifting device can be added.
- the cantilever device is guided by two or four parallel rails, the first and second fixation devices each comprising a pawl per rail, so that each rail ne a total of two pawls of the first and second fixation devices are assigned to together and the lifting drive of the Cantilever device comprises either two rails and four latches or four rails and eight latches.
- the maximum permissible load of the cantilever device is increased in this embodiment of the lifting drive.
- Such a lifting drive can move and brake cantilever devices such as those used in bridge construction.
- the pawls of the respective first and / or second fixing devices of both rails which are opposite one another in a direction perpendicular to the longitudinal direction of each rail, can be connected to one another via a web which is designed to move the pawls together.
- the manual lifting device advantageously comprises rotatable toggle lever, for example in the form of a rod, shaft or rod, the sen of a lever arm end is rotatably coupled approximately centrally between the pawls opposite each other perpendicular to the longitudinal direction of each rail to the web, which is formed over the Bar interconnected pawls of the first fixing devices of both rails and / or to move the second fixing devices of both rails together.
- the jointly acting toggle lever on both pawls allows a simple construction of the manual fixing device and a zeitglei hewing and / or lowering the pawls. In this way, the respective fixing device can be operated manually quickly and effectively.
- the toggle lever can be coupled to the web via a clamp that is displaceable along the web. When the toggle lever is not in use, the clamp can be moved to one end of the web in order to align the end of the toggle lever facing away from the web parallel or essentially parallel to the web. In this way, installation space can be saved.
- At least one hydraulic, pneumatic or electromotive lifting device is / are coupled to the web, the pawls of the first fixing devices of both rails and / or the second fixing devices of both rails connected to one another via the web Moving rails together. This results in a simple and automatically controllable lifting drive which is designed to move the pawls together.
- the lifting drive can comprise a controller which is set up so that the hydraulic or pneumatic lifting device can be connected to an already existing hydraulic or pneumatic unit, for example for moving the main frame by means of the lifting device or for moving an upper and / or lower support assembly relative to the main frame, or a separate hydraulic or pneumatic unit from the existing hydraulic or pneumatic unit can be controlled.
- an existing unit reduces the number of components to be purchased and stored, which is particularly important on the construction site due to the limited storage space is advantageous.
- the control allows automated or fully automatic operation of the first fixing device and / or the second fixing device.
- each latching / snap element can be controlled individually or several latching / snap elements, for example all latching / snap elements of the first or second Fi xiervorraumen, jointly via a hydraulic or pneumatic unit gat. This results in a simple and reliable lifting drive
- the control can be set up so that the locking / snap elements can be released from the rail or fixing rail by means of the one or more hydraulic, pneumatic or electromotive lifting device (s), and the locking / snap elements can be released independently by gravity and / or a other force, e.g. B. a spring force of a spring or some other elastic means, so avoiding the control of the one or more hydraulic, pneumatic or electromotive lifting device (s), can engage in the recesses and / or depressions of the at least one rail or fixing rail. Since the latching / snap-on elements only have to be raised, the amount of energy required to operate the lifting drive is reduced compared to a lifting drive in which the latching / snap-on elements have to be controlled for lowering.
- the lifting device is advantageously designed as a hydraulic cylinder, Spindelan drive or rack and pinion drive, wherein the Spindel- or Zahnstangenan drive is driven, for example, by an electric motor, actuator or linear drive.
- These types of lifting devices are reliable and can have different stroke lengths and lifting capacities be obtained.
- the invention also comprises a rail-guided cantilever device which comprises the lifting drive according to the invention.
- a method for moving a rail-guided Freivorbaugerä tes, in particular for use in bridge construction, with the linear actuator according to the invention also belongs to the invention.
- the procedure consists of the following steps:
- One direction can be defined as the forward or backward direction of the main frame.
- the first end of the lifting device can be an end of a lifting cylinder or an end of a piston of the lifting device.
- the lifting device ie the piston opposite the Hubzylin, can be extended to move the main frame relative to the at least one rail, and retracted with the main frame resting relative to the rail in order to perform the next stroke.
- the lifting device that is to say the lifting piston with respect to the lifting cylinder, is retracted in order to move the main frame relative to the rail, and extended with the main frame resting relative to the rail in order to carry out the next stroke.
- the lifting device and the fixing devices thus form a caterpillar to which the main frame is connected and which carries out a caterpillar movement relative to the rail and thereby displaces the main frame relative to the rail.
- the process allows a structure that is unchanged over the retraction and extension movement of both fixing devices.
- the lifting device does not have to be separated from the main frame and reconnected to the main frame. Instead, the arrangement of lifting device and fixing devices can be used in unchanged form both for forward and reverse travel. This simplifies the operation of the lifting drive and increases work safety.
- the main frame is fixed by both fixing devices with respect to the at least one rail when it is at rest relative to the rail. This increases the security of the fixation compared to a fixation of the main frame with respect to the rail by only one of the fixation devices. Uncontrolled movement of the main frame, e.g. B. in a separation of the piston from the cylinder of the lifting device in fixation only by the second Fixiervorrich device is effectively avoided in this way.
- the execution of the lifting movement of the lifting device in one direction and the other is advantageously carried out partially or completely and to the same extent in terms of the length of the stroke. If the same, in particular complete, stroke length is used in both directions of the lifting movement, i.e. when the lifting device is retracted and extended, a predetermined shift to be carried out can be carried out with a minimized number of fastening and releasing operations of the first and second fixing devices . This minimizes the work and energy expenditure when operating the lifting drive.
- the process steps according to the invention are preferably defined as a cycle and the cycle is run through until the main frame is displaced by a predetermined displacement in one direction, for example a length of a concreting section to be concreted with the cantilever device, relative to the at least one rail is.
- the fixing devices advantageously each comprise at least one manual, hydraulic, pneumatic or electromotive lifting device for executing a linear translational movement, which is formed, the fixing devices are each reversibly releasable with respect to the to fix at least one rail and to solve with respect to the at least one rail, and the fixing of the respective fixing device bezü Lich of the at least one rail independently by using the gravity force and / or by another force, for.
- B a spring force of a spring or some other elastic means, avoiding actuation and / or control of the respective manual, hydraulic, pneumatic or electromotive flow device by engaging at least one latching / snap element in a recess or recess of the at least one rail or the fixing rail connected to the rail.
- the amount of energy required to operate the lifting drive is reduced compared to a solution in which the latching / snap-on elements are lowered manually or have to be activated in order to be lowered. If the locking / snap-in elements are raised manually without manually lowering the locking / snap-in elements, the fixing devices are actuated semi-automatically. When the locking / snap-in elements are raised by means of activation without lowering the locking / snap-in elements by means of activation, the fixing devices are activated fully automatically.
- Fig. 1 shows a cantilever device in use in bridge construction with a main frame guided by four rails, which is attached to a lifting drive according to the invention
- 3a, b show a fixing device with form-fitting fixing on one
- FIG. 4a, b the fixing device shown in Figure 3b as a combination of two fixing components with a common manual Hubeinrich device in the locked state in a front view (a) and in a spatial external view (b) according to a second Ausense approximate form of the invention
- Fig. 5a, b the fixing device shown in Fig. 3b as a combination of two he fixing components with a common hydraulic Hubein direction in the locked state in a front view (a) and in spatial external view (b) according to a third embodiment of the invention
- Fig. 6a-c the Flub drive according to the invention shown in Fig.
- FIGS. 6a-c show the lifting drives according to the invention shown in FIGS. 6a-c, each in a spatial external view with the difference that the fixing device is unlocked in FIG. 7a at the end of the lifting device to which the main frame is attached;
- Fig. 7d-f the lifting drive according to the invention shown in Fig. 2b in a spatial external view with locked fixing device at the end of the lifting device on which the main frame is fastened, and extended lifting device (a) and partially retracted lifting device (b), and with retracted Lifting device and locked fixation devices (c);
- Fixing devices according to the Fi xi device shown in Figures 8a, b in a second embodiment; 10 shows a fixing device which can be fixed on a fixing rail and has form-fitting fixing in a plan view in cross section according to a second embodiment of the invention; 11 shows the flub drive according to the invention with lifting device and
- Fixing devices according to the fixation device shown in FIG. 10 in a second embodiment are identical to the fixation device shown in FIG. 10 in a second embodiment.
- the cantilever device 2 comprises a base frame with two main frames 3, 3 '. For concreting the next bridge section, the cantilever construction device 2 can be moved in the direction of RI in the Z direction.
- the main frame 3 comprises several struts 3a-3c that are connected to one another.
- the main frame 3 comprises, at the end of the strut 3a facing the bridge 1, a frame base 3d which is supported on two rails 4a, 4b which are aligned parallel to each other and which are each attached to a surface la of the bridge, via a roller bearing (not shown) rests.
- the main frame 3 is connected to the further main frame 3 'via cross struts Q1-Q3 and has struts 3'a-3'c which are connected to one another.
- the further main frame 3 ' is guided over a further frame base 3'd by means of two parallel rails 4'a, 4'b, so that the main frames 3, 3' together in the forward direction (Z-direction) and / or in the backward direction ( negative Z-direction).
- the main frame 3 'with a further frame base 3'd rests on rails 4'a, 4'b.
- the rails 4a, 4b, 4'a, 4'b lie parallel to one another on the surface la and are connected to it so that the rails cannot lift off in the Y direction.
- the frame bases 3d, 3'd comprise brackets which engage under the rails 4a-4'b and are against lifting in the Y direction secured.
- the cantilever construction device 2 comprises an upper carrier arrangement 3 "and a lower carrier arrangement 3"'.
- the frame bases 5, 5 ' are each attached to lifting devices 5, 5' which adjoin the frame bases 5, 5 'in the negative Z direction.
- the area of the lifting device 5 shows section A and the area of the lifting device 5 'shows section A'.
- the main frames 3, 3, 3 ' are each connected to the lifting drive according to the invention, the lifting drive for driving the main frame 3 comprising the lifting device 5 and the lifting drive for driving the main frame 3' comprising the lifting device 5 '.
- FIG. 2a shows a detail from FIG. 1 with the main frame 3 and the lifting device 5, the lifting device 5 being fastened in the Z direction to the frame base 3d of the main frame 3.
- the frame base is connected to the struts 3a, 3b, which in turn are connected to one another via the strut 3c.
- more struts connect to the strut 3a, which are connected to a further frame mensockel which can be fastened to the rails 4a, 4b and is designed to be a counterweight to the upper support assembly 3 "and the Form lower support assembly 3 '''.
- the rails 4a, 4b extend in the Z direction and are aligned parallel to one another in such a way that the frame base 3d is on both rails 4a, 4b can rest rolling in order to allow forward travel in the Z direction or reverse travel in the negative Z direction.
- a support of the frame base 3d via a slide bearing on the rails 4, 4b or on only one of these rails is also possible.
- Fig. 2b an enlarged section of Fig. 2a is shown in a spatial external view, wherein the flub drive according to the invention, in addition to the flub device 5, a first fixing device 6 with first fixing components 6a, 6b and a second fixing device 7 with second fixing components 7a, 7b Opposite first and second ends of the flow device 5 comprises.
- the two first fixing components 6a, 6b are both connected to the first end of the flub device 5 to which the frame base 3d is attached.
- the first fixing component 6a is designed to fix the first end of the floating device 5 on the rail 4a and the further first fixing component 6b is designed to fix the first end of the floating device 5 on the rail 4b.
- One fixation component 6a or 6b would be sufficient for the first fixation device 6, but the flaup frame 3 is more securely fixed to the rails 4a, 4b via the frame base 3d if both first fixation components 6a, 6b are fixed together on the rails.
- a second fixing device 7 with second fixing components 7a, 7b is connected to the flub device 5.
- the second fixing components 7a, 7b are each connected to the second end of the flow device.
- the second fixing component 7a is designed to fix the second end of the flub device to the rail 4a and the second fixing component 7b is designed to fix the second end of the flub device to the rail 4b.
- the frame base 3d is fastened in such a way that it can be fixed over the first fixing components 6a, 6b of the first fixing device 6 at the first end of the lifting device 5 is attached.
- the frame base 3d does not have to be fastened in the Z-direction to the lifting drive according to the invention with the lifting device 5 and the first fixing device 6 and the second fixing device 7, but the frame base 3d and thus the cantilever device can also be attached in the negative Z-direction to the first Be attached to the end of the lifting device 5.
- the frame 3 can also be arranged via the frame base 3d between the first end of the lifting device 5 and the first fixing device 6, as long as the main frame 3 is fastened to the first end of the lifting device 5 and the first fixing device to the first end of the lifting device 5 is connected so that the first fixing device can fix the first end of the lifting device 5 on at least one of the rails 4a or 4b.
- the main frame 3 rests on the upper surface la of the bridge 1 via the two rails 4a, 4b, it is also possible that the main frame 3 rests on only one of the two rails 4a, 4b.
- only a first fixing component 6a or 6b is connected as a first fixing device 6 to the first end of the lifting device 5 and only one of the second fixing components 7a or 7b is connected to the lifting device 5 as a second fixing device 7 on the second end of the lifting device 5 .
- Two rails 4a, 4b allow a higher load capacity than just a rail 4a or 4b.
- the fixing components 6a, 6b have a corresponding structure with identical parts, which lowers the costs for the manufacture of the linear actuator according to the invention, but is not essential to the invention.
- the first fixing component 6b comprises a base plate 6bl on which a first guide plate 6b3 is attached in the Y direction.
- a holding plate 6b2 is attached to the base plate 6bl in the negative Z direction in such a way that the holding plate 6bl can engage below the rail 4b in the negative Y direction.
- the holding plate 6b2 is designed so that the first fixing component 6b and thus the first fixing device 6 are not lifted off the rail 4b in the Y direction.
- a distance between the holding plate 6bl and the base plate 6b3 is selected to be greater than the height of the rail 4b.
- the first guide plate 6b3 there is an elongated hole in the Y direction, as shown in FIG. 3b, in which a web 8 is guided, at one end of the web 8 in the X direction (out of the plane of the sheet) a latching / snap element in the form of a pawl 6b5 at the end of the web 8 is brought to.
- the pawl 6b5 is next to the elongated hole of a recess 6b ′′ in the base plate 6bl such that a width 6b 'of the blade 6b5 is selected to be equal to or smaller than a width 6b ′′ of a recess in the base plate 6bl.
- a width 6b 'of the blade 6b5 is selected to be equal to or smaller than a width 6b ′′ of a recess in the base plate 6bl.
- the pawl 6b5 i is in a position facing away from the rail 4b at the end, in particular at the stop, of the elongated hole in the Y direction such that the fixing component 6b is unlocked relative to the rail 4b.
- the pawl 6b5 is therefore in an unlocking position PE opposite the rail 4b and / or the guide plate 6b3.
- a width 6b '′′ of a recess in the holding plate 6b2 is greater than the width 6b' of the pawl 6b5 such that when the pawl 6b5 is moved in the negative Y direction, the end of the pawl 6b5 facing the rail 4b (in the negative Y direction ) can pass through the recess in the retaining plate 6b2 in addition to the recess in the base plate 6bl.
- the end of the pawl 6b5 facing the rail 4b is in an area of the rail 4b facing away from the surface la (above the rail 4b) That the fixing component 6b can be displaced in the forward or backward direction of the main frame 3.
- the first fixing device 6 has a first connecting element 9 in the Z-direction for fixing the first fixing device 6 to the frame base 3d and thus the main frame 3.
- the first fixing device 6 is connected in the negative Z direction to the lifting device 5 in such a way that it has the first end in the Z direction of the lifting device 5 on the Can fix rail 4b.
- the first fixing component 6b is shown in a lateral cross-sectional view in the locked state relative to the rail 4b.
- the elongated hole present in the first guide plate 6b3 has a width which is equal to or less than a width of the web 8.
- the pawl 6b5 is located in a position facing the rail 4b at the end, in particular at the stop, of the elongated hole in the negative Y direction such that the fixing component 6b and thus the lifting device 5, which is connected to the first fixing component 6b at its first end, is fixed . Therefore, the pawl 6b5 is in a locking position PV.
- the pawl 6b5 passes through a recess 4b1 made in the rail 4b and having a width 4b 'which is equal to or greater than the width 6b' of the pawl 6b5.
- a distance PA between the unlocking position PE and the locking position PV is chosen so that the pawl 6b5 the recess in the base plate 6bl with the width 6b ", the recess in the rail 4b with the width 4b 'and at least part of the recess in the holding plate 6b2 with the width 6b '"passes through.
- the first fixing component is locked in a stable and reliable manner 6b of the first fixing device 6 and thus the first end of the lifting device 5 and the main frame 3 attached to it on the rail 4b.
- the further first fixing component 6b is constructed in accordance with the first fixing component 6b and comprises a base plate 6a1 with a direction facing it in the rail 4a, i.e. negative Y-direction, attached holding plate 6a2 and in the direction facing away from it in the rail 4a, i.e. the Y-direction first guide plate 6a3 and second guide plate 6a3 '.
- a pawl 6a5 is guided, which extends in the Y direction and, in terms of the geometrical dimensions of the pawl 6b5, essentially corresponds to the first fixing component 6b, which is between the first guide plate 6b3 and a pawl in the Is guided substantially parallel second guide plate 6b4.
- Both first fixing components 6a, 6b are connected to one another via a first connecting plate 10.
- the base plates 6al, 6bl are designed as a common plate, which simplifies the structure of both Fixierkom components, but can also be in different plates that can be connected to one another.
- Both fixing components 6a, 6b share the web 8, at one end of which the pawl 6b5 is attached in the X direction and the pawl 6a5 is attached to the other end in the negative X direction.
- one end of a toggle lever 20 is rotatably coupled to the web via a clamp 18.
- the approximately central position 18 'of the clamp 18 relative to the web 8 allows a movement of the web 8 in a direction facing away from the rails 4a, b, i.e. in the Y direction, or a movement in a direction facing the rails 4a, b , so in the negative Y direction, with approximately the same masses on both sides of the clamp 18.
- the clamp 18 has a recess 19 such that the end of the toggle lever 20 coupled to the web 8, for example, via a screw connection with the Clamp 18 can be rotatably connected.
- the toggle lever 20 rests in a recess 6a3 'of the first guide plate 6a3 and is via guide means 19', 19 "which are connected to the toggle lever 20 and are on opposite sides of the first guide plate 6a3 when the toggle lever 20 is removed from the recess 6a3 'is guided relative to the first base plate 6a3.
- the guide means 19', 19 can each be implemented by a screw connection in which a screw passes through a through hole in Z Direction is guided in the toggle lever 20 and secured by a nut.
- the toggle lever 20 is guided through the head of the screw and the nut opposite this head on the other side of the toggle lever when the toggle lever is arranged or offset in the recess 6a3 '.
- the first guide plate 6b3 also has a recess at its end facing away from the rails 4a, 4b, i.e. in the Y direction, in such a way that the toggle lever 20 is not only in the recess 6a3 'of the first fixing component 6a, but alternatively in the recess on the The end of the first guide plate 6b3 of the first fixing component 6b can be guided or offset.
- the clamp 18 can be attached to the web 8 or movably attached to it, as is the case with the first fixing device 6 in FIGS. 4a, b.
- the clamp is arranged along the web 8, that is, in the X direction and the negative X direction, displaceably on the web. In this way, when the toggle lever 20 is lifted out of the recess 6a3 'by lifting in a direction facing away from the rails 4a, 4b, ie in the Y direction, it can be aligned essentially parallel to the web 8 in a space-saving manner. If the clamp 18 is minimally spaced from the first guide plate 6a3 or the further first guide plate 6b3 or rests against it, the space requirement of the toggle lever 20 is minimized, which serves the safety of work.
- first connecting plate 10 On the first connecting plate 10, second connecting plates 11 are attached and connected via a bolt 12 with a locking pin 13 for fastening, for example, the first end of the lifting device 5 miteinan the.
- the first connecting element 9 for fastening, for example, the frame base 3d of the main frame 3 is on the connec tion plates 11 and thus on the first connecting plate 10 and thus on the first fixing components 6a, 6b and thus on the first fixing Device 6 attached.
- Third connecting plates 14 and a second connecting element 15 with a through-hole 16 for fastening the frame base 3d are connected to the first connecting element 9.
- the structures of the first fixing components 6a, 6b are constructed axially symmetrically in the Y / Z direction with regard to a plane formed centrally between the fixing components, which simplifies the common structure.
- the common structure of the first Fixiervor device 6 is additionally simplified.
- each of the pawls 6a5, 6b5 falls into the respective recess 4al, 4bl of each of the rails 4a, 4b due to the force of gravity.
- another force e.g. B.
- both the first fixing component 6b can be reversibly and detachably fastened to the rail 4a and the further first fastening component 6a can be fastened reversibly and detachably to the rail 4b.
- the first fixing component 6a is released from the rail 4a and, at the same time, the further first fixing component 6b is released from the rail 4b in this position.
- the fixing component 6a is attached to the rail 4a and the fixing component 6b is attached to the rail 4b.
- the first fixation component 6a and the further first fixation component 6b can be locked and unlocked together with the web 8 and the toggle lever 20 according to a particularly advantageous embodiment of the first fixation device and thus according to the flub drive according to the invention.
- the second fixing device 7 with the second fixing components 7a, 7b has a structure that corresponds to or is the same as that of the first fixing device 6.
- first and second fixing devices 6, 7 each comprise only one pawl which can engage in one of the rails 4a, 4b or in both rails 4a, 4b.
- the first fixing device 6 and / or the second fixing device 7 can also comprise / comprise more than two pawls that can be actuated individually, partially together or completely together.
- the first fixing device 6 shown in Fig. 3b is shown as a combination of the two fixing components 6a, 6b with a common hydraulic Hubein direction in the locked state in the locking position PV in Fig. 5a in a front view and in Fig. 5b in a spatial external view. Because of the large number of identical parts / components, only the parts / components that are different or additional to the first fixing device 6 shown in FIGS. 4a, 4b are discussed.
- the first fixing component 6a of the first fixing device 6 is assigned a first hydraulic cal lifting device 21a-24a, which is arranged between the web 8 and the base plate 6al.
- a lifting cylinder 21a with retracted A piston (not shown) is connected to the base plate 6al via a first flange 24a, which engages in a socket 22a of the base plate 6al, and the piston is connected to the web 8 via a second flange 23a.
- a through hole 25a in the socket 22a is shown, which is designed to merge into a corresponding through hole of the first flange 24a, for example by means of a screw connection to fasten the lifting cylinder 21a to the base plate 6al.
- the lifting cylinder 21a is designed to extend the piston in a direction facing away from the rail 4a, ie in the Y direction, and to retract it in a direction facing the rail 4a, ie in the negative Y direction.
- the first fixing component 6a In the extended state of the lifting device, the first fixing component 6a is in the unlocking position PE and in the retracted state of the lifting device, the first fixing component 6a is in the locking position PV.
- the further first fixing component 6b of the fixing device 6 has a further lifting device 21b-24b, the further lifting cylinder 21b being constructed with the piston retracted (not shown) corresponding to the lifting cylinder 21a.
- a further mount 22b is attached to the base plate 6bl, in which a further first flange 24b of the lifting cylinder 21b is connected to the base plate 6bl.
- the further lifting cylinder 21b is designed to extend the piston in the direction facing away from the rail 4b, i.e.
- the construction of the lifting devices 21a-24a and 21b-24b is the same, so that a simple construction of the fixing device 6 results. Both lifting devices are adjusted together controlled to ensure that both lifting devices run synchronously.
- first fixing device 6 shown in each case in Figures 5a, 5b, the second connecting element 15 is used to attach the fixing device to the frame base 3d and the first connecting plates 11 to attach the fixing device to the first end of the lifting device 5.
- the first fixing device 6 can be used as second fixing device 7 can be used, both fixing devices then being aligned with one another rotated by 180 ° in the X / Z plane.
- FIG. 6a shows the lifting drive according to the invention shown in FIG. 2b in a lateral cross-sectional view with retracted lifting device 5 and locked fixing devices 6, 7.
- the cross-sectional view corresponds The cross-sectional view in FIGS. 3a, 3b and in addition to the pawl 6b5 of the further first fixing component 6b of the first fixing device 6, the pawl 7b5 of the further second fixing component 7b of the second fixing device 7 is shown. Both pawls are in the negative Y direction in the locking position PV, whereby both ends of the lifting device 5 are fixed with the lifting cylinder 5b on the rail 4b.
- the lifting device 5 is on the rails 4a via four pawls and 4b fixed, the first and second fixing devices 6, 7 each being fastened reversibly releasably to the rails 4a, 4b with two pawls.
- the rail 4b has recesses 4bl-4b4, the pawl 6b5 of the first fixing device 6 engaging in the recess 4b3 and the pawl 7b5 of the second fixing device 7 engaging in the recess 4bl in the locked or fastened state.
- the main frame 3 is connectable and connected to the first end of the lifting device 5 via its frame base 3 d via the first fixing device 6.
- the first fixing device 6 is connected to the first end of the lifting device 5 in such a way that the first end of the lifting device 5 can be fixed to the rail 4b via the first fixing device 6, and a position 6P corresponds to the first fixing device 6 in the Z direction relative to the rail 4a, 4b a position of the first end of the lifting device 5.
- a position 6P corresponds to the first fixing device 6 in the Z direction relative to the rail 4a, 4b a position of the first end of the lifting device 5.
- the bolt 12 to the connection of the first end of the lifting device 5 in the X / Y plane approximately at the level of the web 8 in Z- Direction is located.
- a corresponding definition applies to a position 7P, 7P2, 7P3 of the second fixing device.
- the first end of the lifting device 5 can be offset to the web 8 in the longitudinal direction of the rail 4a, 4b and / or in the direction facing away from the rail 4a, 4b transversely to the longitudinal direction.
- the frame base 3d and thus the main frame 3 can be connected to the first fixing device 6 in the Z direction. In the starting position 6P there is no displacement 6A of the first fixing device 6 and thus also no displacement of the first end of the lifting device 5 and no displacement of the main frame 3 relative to the rails 4a, 4b in their longitudinal direction.
- FIG. 6b the lifting drive shown in FIG. 6a is shown at a later point in time compared to the state of the lifting drive in FIG. 6a.
- a piston 5a of the lifting device 5 is partially extended relative to the lifting cylinder 5b with a stroke of length 5aAl. Since the first fixing device 6 is in the unlocked state relative to the rails 4a, 4b according to the unlocking position PE of the pawl 6b5 and the second fixing device 7 is still in a locked state according to the locking position PV of the pawl 7b5 the lifting movement of the lifting device 5 with the stroke length 5aAl to a displacement 6A1 of the first fixing device 6.
- the stroke length 5aAl therefore corresponds to the displacement 6A1 of the first end of the lifting device 5 and the main frame 3 and thus the cantilever device 2 in the longitudinal direction of the rails 4a, 4b in the Z direction.
- the position of the first fixing device 6 has therefore shifted from the position 6P to the new position 6P1 in the Z direction.
- a distance 4bA between adjacent recesses 4b2, 4b3 in the rail 4b is greater than the stroke length 5aAl and the pawl 6b5 cannot engage in another recess of the rail 4b that is spaced by the distance 4bA from the recess 4b3, in which has engaged the pawl 6b5 in the initial state in the position 6P.
- the essentially complete stroke length 5aA2 corresponds at least to the distance 4bA between adjacent recesses 4b2, 4b3 in the rail 4b and because of the engagement of the pawl 6b5 in the recess 4b4 adjacent to the recess 4b3, the first fixing device 6 is the distance to the starting position 6P 4bA shifted ver, which corresponds to a shift 6A2 of the first fixing device 6.
- the position 6P2 of the first fixing device 6 consequently lies in the X / Y plane in which the center of the recess 4b4 lies in the rail 4b in which the pawl 6b5 engages.
- the pawl 6b5 is in the Verrie gelungsposition PV and the first fixing device 6, like the second fixing device 7, is attached to the rail 4b.
- the first end of the lifting device 5 and thus the main frame 3 and thus the cantilever device 2 is shifted by the shift 6A2 in the longitudinal direction of the rail 4a, 4b, i.e. in the Z direction.
- the position of the second fixing device 7 has remained unchanged according to the locking position PV of the pawl 7b5 during the displacement process from position 6P to 6P2 of the first fixing device 6 relative to the rail 4b.
- FIGS. 7a to 7c the states of the lifting drive according to the invention shown in FIGS. 6a-6c are each shown in a spatial external view, a difference between the state of the lifting drive in FIGS. 6a and 7a being that, in contrast to the locked State of the first fixing device 6 in Fig. 6a, the first Fixiervorrich device 6 in Fig. 7a is unlocked and is in the unlocking position PE be.
- the frame base 3d connects in the Z direction to the first Fi xiervoriques 6 and is attached to this.
- the first and second fixing devices 6, 7 each include the toggle lever 20 for manual locking and unlocking of the respective fixing device 6, 7.
- the starting positions 6P without the displacement 6A of the first fixing device 6 when the lifting device 5 is retracted without the stroke length 5aA is in 7a shown.
- the frame base 3d is spaced from an edge of the marking 4bP of the rail 4b by the frame base spacing 4bP in the longitudinal direction of the rail 4b.
- the starting position 6P of the first fixing device 6 is spaced from the edge of the marking 4bP in the longitudinal direction of the rail 4b by the distance 6P '.
- the lifting device 5 is extended by the stroke length 5aAl with the second fixing device 7 fixed on each of the rails 4a, 4b.
- the first fixing device 6 is displaced in relation to the starting position 6P by the displacement 6A2 in the longitudinal direction of the rails 4a, 4b in the Z direction into the new position 6P2. While the position 6P of the first fixing device 6 of the lifting drive in FIG. 7a has shifted by the displacement 6A2 into the new position 6P2 in the longitudinal direction of the rails 4a, 4b, i.e. in the direction of RI, position 7P2 is the second Fixing device 7, which is spaced apart by the distance 7a2 from the edge of the marking 4bP in the longitudinal direction of the rail 4b in the negative Z direction, has remained unchanged in relation to the retracted state of the lifting device 5 in FIG. 7a in FIG. 7c.
- the toggle lever 20 of the first fixing device 6 is guided in the X direction onto the first guide plate 6b3
- the toggle lever 20 of the second fixing device 7 is guided in the negative X direction onto the first guide plate 7a3.
- the toggle lever 20 for both fixing devices 6, 7 can be folded over in the X direction or in the negative X direction.
- the first fixing device 6 is at rest relative to the rails 4a, 4b and the second fixing device 7 is relative to the rails 4a, 4b shifted in the longitudinal direction of the rails 4a, 4b in the Z direction.
- the lifting device 5 is fully extended with a stroke length 5aA2, so that the first fixing device 6 is in the position 6P2.
- the first fixing device 6 is locked and fastened to the rail 4b so that the first fixing device 6, the first end of the lifting device 5 and the frame base 3d and thus the cantilever device 2 remain at rest relative to the rails 4a, 4b.
- the second fixing device 7 is unlocked and can therefore be moved in the RI direction in the Z direction.
- the lifting device 5 is partially retracted, so that a shorter stroke length 5aA3 results in relation to the stroke length 5aA2 when the lifting device 5 is fully extended.
- the partially retracted lifting device which is fixed at the first end of the lifting device on the rail 4b, leads to a position 7P3 of the second fixing device which is shifted relative to the position 7P2 when the lifting device 5 is fully extended in the direction RI, i.e. in the Z direction.
- FIG. 7f the lifting device 5 is completely retracted without a lift, as can be seen from the non-existent lift length 5aA.
- the second fixing device 7 is spaced apart by the distance 7Aa from the edge of the marking 4bP in the longitudinal direction of the rail 4b in the negative Z direction.
- the piston 5b is relative to the lifting cylinder 5a during the extension movement of the lifting device 5 (see Fig. 7b) in the negative Z-direction drive ver.
- the piston 5b is relative to the lifting cylinder 5a when retracting the lifting device 5 (see Fig. 7e) in the Z direction drive ver.
- a comparison between the states of the lifting drive in Figures 7a and 7f shows that the frame base 3d and thus the cantilever device 2 is shifted by a difference 3dAl-3dA in the longitudinal direction of the rail 4a, 4b, i.e. in the Z direction, this difference corresponds to the displacement 6A2 of the first fixing device 6 and the essentially complete stroke length 5aA2.
- the extension and retraction cycle of the lifting drive according to the invention with the lifting device 5 and the first and second fixing devices 6, 7 shown in Figures 7a-f is repeated until a predetermined shift of the cantilever device in the forward or backward direction is achieved.
- the cantilever device 2 can also be displaced by retracting the lifting device when the second fixing device 7 is fixed.
- FIG. 8a shows a fixing device 6 with positive fixing by means of a fixing layer 26 at one end of the lifting device 5 (not shown) in a lateral cross-sectional view in the unlocked state in the unlocking position PE.
- an elastic means housing 27 is a Elastic means 28 in the form of several leaf or plate springs angeord net.
- the elastic means has a spring force of 300 kN, for example.
- the elastic means housing 27 is connected to a guide housing 34 which engages around an upper part of the double-T-shaped rail 4b and is displaceable relative to the rail 4b in the Z-direction (out of the plane of the sheet).
- the counterpressure fixing layers and / or the guide housing are connected to the elastic means housing 27 via counterpressure arms 32.
- the elastic means 28 is connected to the fixing layer 26 in the form of a brake lining via a pretensioning means 29 and a pretensioning fixing means 29S.
- An unlocking lifting device 30, which comprises an unlocking lifting device piston 30a and an unlocking lifting device cylinder 30b, is arranged between the pretensioning fixing means 29S and an upper side of the elastic means housing 27.
- the unlocking lifting device has an unlocking lifting device connection 31 on the lifting cylinder 30b for connection to a hydraulic line.
- a depth 28a of the elastic means 28 is 85.6 mm, for example, which leads to an air gap 26L1 between a lower side of the fixing layer 26 and an upper side of the rail 4b of 7 mm, for example.
- the piston 30a of the unlocking lifting device 30 is extended such that the elastic means 28 is compressed in the Y direction and thereby the fixing layer 26 is lifted from the rail 4b, so that the air gap 26L1 is formed.
- the fixing device 6 is opposite the Rail 4b displaceable in the Z direction or in the negative Z direction.
- the fixing device 6 shown in Figure 8a is shown in the locking position PV.
- the air gap 26L2 is 0 mm, which leads to an expansion of the depth 28A of, for example, 92.6 mm compared to the depth 28A in FIG. 8a of, for example, 85.6 mm.
- FIG. 9 shows a lifting drive according to the invention with two of the fixing devices 6, 7 shown in FIGS. 8a, 8b, which are each arranged at one of the two ends of the lifting device 5 with the piston 5a and the lifting cylinder 5b.
- the first fixing device 6 is in the locking position PV and the second fixing device 7 is in the unlocking position PE (see PE in Figure 8a and PV in Figure 8b).
- the lifting device 5 is designed as a double-acting lifting device in such a way that the lifting device 5 can both be extended via a hydraulic line and retracted via a further hydraulic line.
- the lifting cylinder 5b of the lifting device 5 is connected via a first connection A and via a second connection B of the lifting device 5 to a pressure source 35 in the form of a hydraulic pressure source.
- a directional valve 36 in the form of a 4/3-way valve includes the further ports P and T in the form of a pressure port P and a tank port T.
- the directional valve has three mechanically actuatable positions, in In a first position, the port P is connected to the port A and, independently of this, the port T is connected to the port B; in a middle position between P and T there is a pressureless circulation such that A and B are relieved towards a tank and In addition to the unpressurized circulation, a floating position is assumed so that the Directional control valve 36 can be moved easily by an external force you can actuate. In the third position, port P is connected to port B and port A is connected to port T independently of this. The connection A is connected to a shuttle valve 37 via a first connection line 36a and a first shuttle valve line 36A1.
- connection B is connected to the changeover valve 37 via a second connection line 36b and a second changeover valve line 36B1.
- the first shuttle valve line 36A1 and the second shuttle valve line 36B1 with a line 37A to the first fixation device 6 and with a line 37b to the second fixation device 7, each by connection to the connection 31 of the unlocking lifting devices 30 of the first and second Fixing devices 6, 7 connected.
- a first branch point VI such that connection A not only with the changeover valve 37, but also with a first connection of the lifting cylinder 5b via a first lifting device line 36A2 for extending the piston of the Lifting device 5 is connected.
- connection B is connected via a second branch point V 2 via the second connection line 36b and the second line 36B2 of the lifting device 5 to a second connection of the lifting cylinder 5b of the lifting device 5 for retracting the piston 5a of the lifting device 5.
- the first fixing device 6 is unlocked and the second fixing device 7 is locked or vice versa.
- the locking and unlocking of the fixing devices 6, 7 takes place alternately in such a way that the connections A and B on the lifting cylinder 5b are controlled in such a way that the fixing device 6, 7 that is required for the extension or retraction of the piston 5a is locked Moving the cantilever device 2 (not shown) must be locked.
- FIG. 10 shows a fixing device 6 which can be fixed on a fixing rail 40 with an axis 40A and which is positively fixed by means of one or more fixing elements 46 on a surface of the fixing rail 40 in a plan view in cross section.
- the fixing device 6, which can be fixed in a form-fitting manner, has an elastic center frame 47, with an elastic center 28 in the form of one or more leaf or plate springs being arranged in the elastic center frame 47.
- the elastic means 28 can consist of eight disc springs with a spring force of 14 kN.
- a counter-pressure element 48 in the form of a conically shaped flea cylinder which is connected via at least one connecting web 44 with the piston 30a of the Unriegelungshubvorraum 30 connected is.
- the counterpressure element is connected to the piston 30a of the unlocking lifting device 30 via two connecting webs 44 for the introduction of corresponding forces by the piston of the unlocking lifting device 30.
- the connecting webs 44 press the counter-pressure element against the Elastic means 28, whereby at least one fixing element 46, which is arranged between the counter-pressure element 48 and the fixing rail 40, is released.
- a fixing element 46 shown in FIG. 10 above the fixing rail 40 in the form of a wedge can be moved in the positive X direction, and a further fixing element, which is different from the upper fixing element 46 and shown in FIG. 10 below the fixing rail 40, can be moved in negative X -Direction are moved when the Kol ben 30a of the unlocking lift 30 is extended.
- a gap 48A between the counter-pressure element 46 and the elastic middle frame 47 is enlarged.
- the fixing element 46 is formed by a projection 47V in the elastic middle frame 47, which creates a recess in the elastic middle frame 47 into which a projection 46V of the Fixing element 46 can intervene in such a way that when the fixing device 6 is unlocked, the fixing element 46 does not migrate in the negative Z-direction and can become wedged between the fixing rail 40 and the counter-pressure element 48.
- the counter-pressure element 48 can also consist of a plurality of wedge-shaped elements that are not directly connected to one another.
- the elastic middle frame 47 has on opposite sides of the fixing rail 40 base 43 for connec tion with one end of the lifting device 5.
- the lifting cylinder 30b of the unlocking lifting device 30 is connected to the elastic center frame 47 in such a way that when the piston 30A is extended, the piston 30A is can move relative to the elastic center frame 47 (in the negative Z direction).
- a fixing force in direction 46F which is generated by fixing element 46 through contact with fixing rail 40, of for example 133 kN be generated.
- the gap between the counterpressure element 48 and the elastic center frame 47 can have a width of 20 mm, for example.
- the fixing element 46 can consist of three separate elements, in particular arranged in an X / Y plane at angles of 120 ° to one another.
- a pressure of 180 bar can be applied to the connection 31 of the unlocking lifting device.
- a fixing rail 40 with a round cross section can have a diameter of 60 mm, for example.
- FIG. 11 shows a further embodiment of the floating drive according to the invention with the floating device 5 and fixing devices according to the fixing device 6 shown in FIG. 10 as fixing devices 6, 7.
- the hydraulic control of the fixing devices 6, 7 and of the flow cylinder 5b of the flow device 5 for extending or retracting the piston 5a corresponds to the fly hydraulic circuit shown in FIG. Reference is therefore made to the description of the fly hydraulic circuit in FIG. 9 for explaining the fly hydraulic circuit in FIG.
- the rail 4b, on which the flub cylinder 5 and a locking head 49 is guided at one end of the Flubvor device 5 and the frame base 3d at one end opposite the other end of the flub device 5, over at least one connection component 41 is connected to the fixing rail 40.
- An axis 40A of the fixing rail 40 runs parallel to the Rail 4b, the fixing rail 40 being connected to the rail 4b via the connecting component 41 in such a way that a fixing effect of one or both of the fixing devices 6, 7 leads to a fixation of one and / or the other end of the floating device 5 with respect to the rail 4b.
- a fixing rail 40 additionally attached to the rail allows the use of conventional lifting drives for moving the rail-guided cantilever device 2, in which the latching head 49 is attached at one end, which is arranged relative to a latching device 42 such that when the latching head 49 rests on the latching device 42 the cantilever device can be pushed ver when extending the piston 5a in the Z direction.
- the latching head 49 is attached at one end, which is arranged relative to a latching device 42 such that when the latching head 49 rests on the latching device 42 the cantilever device can be pushed ver when extending the piston 5a in the Z direction.
- the fixing device 7 can be fixed on the fixing rail 40 in the locking position PV with the piston 30a of the unlocking lifting device 30 retracted and the fixing device 7 can use its fixed position with respect to the rail 4b pass on first coupling element 50 and a second coupling element 51 to latching head 49 and thus to one end of lifting device 5.
- first coupling element 50 is connected to the latching head and another end of the first coupling element 50, which is opposite one end, is connected to the sockets 43 of the fixing device 7.
- each of the fixing devices can Lines 6, 7 can also be connected to one or the other end of the lifting device 5 via just one coupling element.
- the two Fixiervor devices 6, 7 unlock and lock each in order to move the cantilever device 2 (not shown) or to brake or to fix it.
- the fixing rail 40 which is connected to the rail 4b by means of the connecting component 41 or several connecting components 41, the fixing devices 6, 7 can each have their fixing / braking / or supporting effect at each of the two ends of the lifting device 5 relative to the rail 4b unfold.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019104548.7A DE102019104548A1 (de) | 2019-02-22 | 2019-02-22 | Hubantrieb für ein schienengeführtes freivorbaugerät |
| PCT/DE2020/100112 WO2020169149A1 (de) | 2019-02-22 | 2020-02-18 | Hubantrieb für ein schienengeführtes freivorbaugerät |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3927893A1 true EP3927893A1 (de) | 2021-12-29 |
| EP3927893C0 EP3927893C0 (de) | 2024-10-23 |
| EP3927893B1 EP3927893B1 (de) | 2024-10-23 |
Family
ID=69770326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20709479.8A Active EP3927893B1 (de) | 2019-02-22 | 2020-02-18 | Hubantrieb für ein schienengeführtes freivorbaugerät |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US12173458B2 (de) |
| EP (1) | EP3927893B1 (de) |
| CN (2) | CN119121808A (de) |
| DE (1) | DE102019104548A1 (de) |
| ES (1) | ES3001335T3 (de) |
| MX (1) | MX2021010104A (de) |
| PL (1) | PL3927893T3 (de) |
| WO (1) | WO2020169149A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019104548A1 (de) * | 2019-02-22 | 2020-08-27 | Peri Gmbh | Hubantrieb für ein schienengeführtes freivorbaugerät |
| CN112609950B (zh) * | 2020-11-28 | 2022-09-16 | 中建二局第一建筑工程有限公司 | 一种用于建筑物外立面施工便捷可移动式操作架 |
| DE102021102727A1 (de) * | 2021-02-05 | 2022-08-11 | Peri Se | Verschiebevorrichtung |
| CN113735009B (zh) * | 2021-09-08 | 2022-12-16 | 武汉船舶职业技术学院 | 一种用于预制件提升的桥梁机械 |
| US20230090066A1 (en) * | 2021-09-17 | 2023-03-23 | Fritel & Associates, LLC | Trailer stacking device |
| CN115341486B (zh) * | 2022-08-30 | 2024-03-01 | 湖南中铁五新模板工程服务有限公司 | 一种悬臂浇筑施工用造桥机 |
| CN115418977B (zh) * | 2022-09-16 | 2025-06-06 | 江苏瑞沃建设集团有限公司 | 桥梁悬臂浇筑施工挂篮非对称加载预压装置 |
| CN115749235B (zh) * | 2022-12-28 | 2024-07-30 | 重庆迈高电梯有限公司 | 一种电梯井道升降脚手架及装配方法 |
| CN118958174B (zh) * | 2024-10-15 | 2025-03-04 | 中铁五局集团第一工程有限责任公司 | 一种桥梁施工用超大节段前支点挂篮装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA782842B (en) * | 1978-05-18 | 1979-07-25 | Zingwe Plant Hire Co Ltd | Improvements in or relating to building apparatus |
| DE102005030333C5 (de) * | 2005-06-29 | 2017-09-28 | Peri Gmbh | Teilbarer Kletterschuh einer Kletterschalung |
| MY143851A (en) | 2006-12-05 | 2011-07-15 | Inventio Ag | Braking device for holding and braking a lift cabin in a lift facility |
| DE102007047443A1 (de) * | 2007-10-04 | 2009-04-16 | Doka Industrie Gmbh | Schalungsanordnung für den Freivorbau von Brücken |
| GB2488983C (en) * | 2011-03-08 | 2014-12-03 | Suspended structure, scaffolding or formwork system | |
| CN202031021U (zh) * | 2011-03-21 | 2011-11-09 | 武桥重工集团股份有限公司 | 一种用于拱型桥梁检查车的走行机构 |
| ES2435505B1 (es) * | 2011-11-30 | 2014-09-23 | Rubrica Ingenieria Y Arquitectura, S.L. | Carro para ejecución de obras |
| US9016025B2 (en) * | 2012-06-11 | 2015-04-28 | Zhejiang Construction Engineering Group Co., Ltd | Constructing method for concrete cylinder of construction steel bar of high-rise steel structure |
| CN203383155U (zh) * | 2013-07-01 | 2014-01-08 | 北京东风世景模板有限公司 | 一种全自动行走装置 |
| WO2016015759A1 (fr) * | 2014-07-30 | 2016-02-04 | Gravity Transport System S.A. | Système de freinage de véhicule sur rail |
| ES1132730Y (es) * | 2014-10-27 | 2015-02-03 | Rubrica Ingenieria Y Arquitectura Sl | Carro para la construccion de un tablero de unpuente en avance progresivo |
| DE102016205956A1 (de) * | 2016-04-08 | 2017-10-12 | Peri Gmbh | Selbstklettersystem, Selbstklettereinheit sowie Verfahren zum Umsetzen einer solchen Selbstklettereinheit an einem Betonbaukörper |
| CN205838369U (zh) * | 2016-06-02 | 2016-12-28 | 成都飞机工业(集团)有限责任公司 | 一种防止起重机在悬挂轨道上运行时打滑的装置 |
| CN206015534U (zh) * | 2016-07-28 | 2017-03-15 | 中铁十四局集团第一工程发展有限公司 | 悬浇箱梁挂篮的自行式行走系统 |
| CN206189285U (zh) * | 2016-08-31 | 2017-05-24 | 中铁十八局集团第五工程有限公司 | 一种桥梁悬臂浇筑挂篮的行走装置 |
| CN106836012A (zh) | 2017-03-14 | 2017-06-13 | 中铁二十四局集团有限公司 | 一种挂篮自动前移装置 |
| CN208167564U (zh) * | 2018-05-02 | 2018-11-30 | 江苏省交通工程集团有限公司 | 一种设有推进装置的挂篮 |
| CN109252446B (zh) * | 2018-08-28 | 2020-07-10 | 中交武汉港湾工程设计研究院有限公司 | 钢箱梁纵向顶推合龙施工装置及其施工方法 |
| DE102019104548A1 (de) * | 2019-02-22 | 2020-08-27 | Peri Gmbh | Hubantrieb für ein schienengeführtes freivorbaugerät |
| DE102019115346A1 (de) * | 2019-06-06 | 2020-12-10 | Peri Gmbh | Anordnung von einer kletterschiene und einer kletterhubschiene für ein schienengeführtes klettersystem |
| DE102020124646A1 (de) * | 2020-09-22 | 2022-03-24 | Peri Ag | Selbstklettersystem für einen Betonbaukörper und Selbstkletterverfahren |
-
2019
- 2019-02-22 DE DE102019104548.7A patent/DE102019104548A1/de not_active Withdrawn
-
2020
- 2020-02-18 US US17/433,115 patent/US12173458B2/en active Active
- 2020-02-18 ES ES20709479T patent/ES3001335T3/es active Active
- 2020-02-18 EP EP20709479.8A patent/EP3927893B1/de active Active
- 2020-02-18 MX MX2021010104A patent/MX2021010104A/es unknown
- 2020-02-18 PL PL20709479.8T patent/PL3927893T3/pl unknown
- 2020-02-18 CN CN202411248351.4A patent/CN119121808A/zh active Pending
- 2020-02-18 CN CN202080015979.3A patent/CN113454287A/zh active Pending
- 2020-02-18 WO PCT/DE2020/100112 patent/WO2020169149A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US20220195678A1 (en) | 2022-06-23 |
| EP3927893C0 (de) | 2024-10-23 |
| EP3927893B1 (de) | 2024-10-23 |
| PL3927893T3 (pl) | 2025-02-24 |
| US12173458B2 (en) | 2024-12-24 |
| DE102019104548A1 (de) | 2020-08-27 |
| MX2021010104A (es) | 2021-10-13 |
| WO2020169149A1 (de) | 2020-08-27 |
| CN119121808A (zh) | 2024-12-13 |
| CN113454287A (zh) | 2021-09-28 |
| ES3001335T3 (en) | 2025-03-05 |
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