HYDRAULIC ARRANGEMENT HAVING LINKED HYDRAULIC UNITS, CLIMBING FORMWORK, AND METHOD FOR MOVING THE CLIMBING FORMWORK USING SUCH A HYDRAULIC ARRANGEMENT

Abstract

The invention relates to a hydraulic arrangement (24). The hydraulic arrangement (24) has multiple hydraulic units (20a, 20b), the control units (26a, 26b) of which are connected, in particular in series, via a data connection (28). The control units (26a, 26b) are preferably designed to control selectively only hydraulic cylinders (16a-16d) directly associated with said units, or also indirectly control, via the data connection (28) and the control unit (26a, 26b) of an additional hydraulic unit (20a, 20b), the hydraulic cylinders (16a-16d) associated with said additional hydraulic unit (20a, 20b). The invention also relates to a climbing formwork (22) having at least one climbing unit (10), in particular multiple climbing units (10). The hydraulic units (20a, 20b) can be linked via the data connection (28) such that synchronous lifting and/or lowering of all climbing units (10) can be or is achieved. The hydraulic units (20a, 20b) are preferably connected in a master-slave arrangement or are preferably controlled in a master-slave mode. Also preferably, the hydraulic units (20a, 20b) are designed to switch from the master-slave mode to the stand-alone mode.

Claims

1. Hydraulic arrangement (24) for a climbing formwork (22), the hydraulic arrangement (24) comprising the following: a) at least two hydraulic cylinders (16a-16d) for raising and/or lowering a portion of the climbing formwork (22); b) at least two hydraulic power units (20, 20a-20d), wherein each hydraulic power unit (20, 20a-20d) comprises at least one pump for delivering a fluid into the hydraulic cylinders (16a-16d) and a control unit (26a-26d) for controlling the fluid flow, wherein in particular each hydraulic power unit (20, 20a-20d) is connected to at most four hydraulic cylinders (16a-16d) of a climbing unit (10, 10a, 10b) of the climbing formwork (22); c) a data link (28) between at least two control units (26a-26d) of the hydraulic power unit (20, 20a-20d), in order to allow for synchronous raising and/or lowering of the hydraulic cylinders (16a-16d).

2. Hydraulic arrangement according to claim 1, in which each hydraulic power unit (20, 20a-20d) is connected to at most one or two hydraulic cylinders (16a-16d) of a climbing unit (10, 10a, 10b).

3. Hydraulic arrangement according to either claim 1 or claim 2, in which the data link (28) is designed in the form of a BUS data link.

4. Hydraulic arrangement according to any of the preceding claims, in which the control units (26a-26d) of the hydraulic power units (20, 20a-20d) are coupled together, such that i) the hydraulic cylinders (16a-16d) are extended only if all the control units (26a-26d) order or allow the extension of the hydraulic cylinders (16a-16d) associated therewith, and/or ii) the hydraulic cylinders (16a-16d) are retracted only if all the control units (26a-26d) order or allow the retraction of the hydraulic cylinders (16a-16d) associated therewith.

5. Hydraulic arrangement according to any of the preceding claims, in which the hydraulic arrangement (24) comprises a first remote control (36a-36c) that is connected to a first control unit (26a-26d) of a first hydraulic power unit (20, 20a-20d).

6. Hydraulic arrangement according to claim 5, in which the hydraulic arrangement (24) comprises a second remote control (36a-36c) that is connected to a second control unit (26a-26d) of a second hydraulic power unit (20, 20a-20d).

7. Hydraulic arrangement according to any of the preceding claims, in which the hydraulic arrangement (24) comprises a superordinate control unit (28a, 28b) that is connected to the control unit (26a-26d) of a first hydraulic power unit (20, 20a-20d) in order to control the control units (26a-26d) of a plurality of hydraulic power units (20, 20a-20d).

8. Hydraulic arrangement according to any of the preceding claims, in which a first hydraulic power unit (20, 20a-20d) is connected to a line voltage, wherein the hydraulic arrangement (24) comprises an electrical connection (34, 34a, 34b) between the first hydraulic power unit (20, 20a-20d) and a second hydraulic power unit (20, 20a-20d), in order to also supply the second hydraulic power unit (20, 20a-20d) with line voltage.

9. Hydraulic arrangement according to any of the preceding claims, in which at least one first hydraulic power unit (20, 20a-20d) comprises a motor, at least two pumps and a shaft, where the at least two pumps can be driven by means of the motor, via the same shaft.

10. Hydraulic arrangement according to any of the preceding claims, in which the motor of a first hydraulic power unit (20, 20a-20d) is designed in the form of an oil-immersion motor.

11. Hydraulic arrangement according to any of the preceding claims, in which the motor of a first hydraulic power unit (20, 20a-20d) is designed in the form of an oil-immersed motor.

12. Climbing formwork (22) comprising at least one climbing unit (10, 10a, 10b), in particular a plurality of climbing units (10, 10a, 10b), and a hydraulic arrangement (24) according to any of the preceding claims, wherein each climbing unit (10, 10a, 10b) comprises a hydraulic power unit (20, 20a-20d) and at most four hydraulic cylinders (16a-16d) that are actuated by a hydraulic power unit (20, 20a-20d).

13. Method for moving a climbing formwork (22) according to claim 12, wherein the method comprises the following method steps: A) actuating a second control unit (26a-26d) of a second hydraulic power unit (20, 20a-20d) using a first control unit (26a-26d) of a first hydraulic power unit (20, 20a-20d), by means of the data link (28); B) moving the hydraulic cylinder (16a-16d) associated with a first climbing unit (10, 10a, 10b) synchronously with the hydraulic cylinder (16a-16d) associated with a second climbing unit (10, 10a, 10b).

14. Method according to claim 13 in conjunction with claim 4, in which the movement of the climbing units (10, 10a, 10b) is stopped if the two control units (26a-26d) are actuated differently.

15. Method according to either claim 13 or claim 14, in which the control unit (26a-26d) of more than one hydraulic power unit (20, 20a-20d), in particular the control unit (26a-26d) of more than two hydraulic power units (20, 20a-20d), preferably the control units (26a-26d) of more than three hydraulic power units (20, 20a-20d), particularly preferably more than four hydraulic power units (20, 20a-20d), is/are controlled by the control unit (26a-26d) of the first hydraulic power unit (20, 20a-20d) or by a superordinate control unit (30a, 30b).

16. Hydraulic power unit (20, 20a-20d) of a hydraulic arrangement (24) according to any of claims 1 to 11 for connecting at least one hydraulic cylinder (16a-16d).

Description

[0049] The features shown schematically in the drawings are not necessarily to be considered as being to scale, and are set out such that the particularities according to the invention can be made clearly visible. For reasons of clarity, often just one component or a few of the same components are provided with reference signs in the drawings. The various features can be achieved individually, in each case, or together in any desired combinations, in variants of the invention.

[0050] In the figures:

[0051] FIG. 1 shows a climbing unit comprising two hydraulic cylinders that are supplied by means of one hydraulic power unit;

[0052] FIG. 2 shows a climbing unit comprising two hydraulic cylinders that are each supplied by means of one hydraulic power unit, respectively;

[0053] FIG. 3 shows a climbing formwork comprising a plurality of climbing units;

[0054] FIG. 4 shows a climbing formwork comprising a plurality of climbing units and a superordinate control unit;

[0055] FIG. 5 shows a climbing formwork comprising four coupled climbing units;

[0056] FIG. 6 shows a climbing formwork comprising eight coupled climbing units;

[0057] FIG. 7 shows a climbing formwork comprising ten coupled climbing units;

[0058] FIG. 8 shows a climbing formwork comprising twenty coupled climbing units;

[0059] FIG. 9 shows a climbing formwork comprising a plurality of climbing units, the climbing units comprising a different number of hydraulic cylinders;

[0060] FIG. 10 shows a climbing formwork comprising a single climbing unit having four hydraulic cylinders;

[0061] FIG. 11 shows a climbing formwork comprising two remote controls;

[0062] FIG. 12 shows a climbing formwork comprising three remote controls; and

[0063] FIG. 13 is a partial view of a climbing unit comprising a hydraulic power unit.

[0064] FIG. 14 shows a hydraulic power unit assembly comprising two pumps that are driven by a common motor.

[0065] FIG. 1 shows a climbing unit 10 comprising a platform 12. The platform 12 can be moved up and down, along climbing rails 14a, 14b. In this case, the movement is achieved by means of hydraulic cylinders 16a, 16b. The hydraulic cylinders 16a, 16b are connected to a hydraulic power unit 20 by means of hydraulic lines 18a, 18b. Since the hydraulic power unit 20 has to supply only the two hydraulic cylinders 16a, 16b with fluid, the hydraulic lines 18a, 18b can be designed so as to be short. The oscillating volume of the hydraulic power unit 20 is also correspondingly small, and therefore the hydraulic power unit 20 can be of a correspondingly small size.

[0066] FIG. 2 shows a climbing unit 10 comprising two hydraulic cylinders 16a, 16b, in which each hydraulic cylinder 16a, 16b is assigned its own hydraulic power unit 20a, 20b. As a result, hydraulic lines between the hydraulic power units 20a, 20b and the hydraulic cylinders 16a, 16b can be designed so as to be very short, or can be omitted entirely.

[0067] FIG. 3 shows a climbing formwork 22 comprising a plurality of climbing units 10a, 10b. The climbing units 10a, 10b of the climbing formwork 22 are provided with a hydraulic arrangement 24 that is designed to move all the climbing units 10a, 10b of the climbing formwork 22 synchronously. For this purpose, the climbing units 10a, 10b each comprise a hydraulic power unit 20a, 20b that is hydraulically connected to the hydraulic cylinder 16a, 16b.

[0068] The hydraulic power units 20a, 20b each comprise a control unit 26a, 26b. The control units 26a, 26b are connected by means of a data link 28. The data link 28 is designed in the form of a BUS data link that allows for the synchronous actuation of all the control units 26a, 26b. In this case, a user of one of the control units 26a, 26b, for example the control unit 26a, actuates all the control units 26a, 26b. In the embodiment according to FIG. 3, the data link 28 connects all the control units 26a, 26b of the hydraulic arrangement 24. In the present case, the data link 28 is designed in the manner of a loop.

[0069] FIG. 4 shows a further climbing formwork 22. Control units 26a, 26b, 26c, 26d of the climbing formwork 22 are controlled by superordinate control units 30a, 30b. A line voltage connection 32a, 32b for hydraulic power units 20a-20d can be provided on the superordinate control units 30a, 30b.

[0070] FIG. 5 shows a climbing formwork 22 comprising a plurality of climbing units 10a, 10b. All the climbing units 10a, 10b of the climbing formwork 22 are connected by means of a data line or data link 28. The data link 28 synchronizes the control units 26a, 26b of the hydraulic power units 20a, 20b. As a result, the hydraulic power units 20a, 20b can be designed so as to be small and effective.

[0071] FIG. 6 shows a climbing formwork 22 comprising a plurality of climbing units 10a, 10b that are connected in series by means of a data link 28. Furthermore, the climbing formwork 22 comprises just one line voltage connection 32 which supplies all the climbing units 10a, 10b with line voltage. In this case, an electrical connection 34 serially connects a plurality of climbing units 10a, 10b, in particular all the climbing units 10a, 10b, to the line voltage connection 32.

[0072] FIG. 7 shows a climbing formwork 22, the climbing units 10a, 10b of which are supplied by means of line voltage connections 32a, 32b. Electrical connections 34a, 34b are provided for this purpose. In contrast, all the climbing units 10a, 10b are connected by means of a single data link 28.

[0073] FIG. 8 shows a climbing formwork 22 comprising a control unit 26a that is connected to a remote control 36a. The remote control 36a is designed for controlling the control unit 26a. If the further control units 26b-26d of the climbing formwork 22 are switched to operate synchronously with the control unit 26a, it is thus possible for all the hydraulic cylinders 16a, 16b of the climbing formwork 22 to be controlled synchronously by the remote control 36a.

[0074] FIG. 9 shows a climbing formwork 22 comprising a climbing unit 10 that comprises two hydraulic power units 20a, 20b. In this case, the hydraulic power unit 20a is connected to two hydraulic cylinders 16a, 16b, and the hydraulic power unit 20b is connected to one hydraulic cylinder 16c. The hydraulic power units 20a, 20b are designed identically and can electively be connected to one or two hydraulic cylinders 16a-16c.

[0075] FIG. 10 shows a climbing formwork 22 comprising a single climbing unit 10. The climbing unit 10 comprises two hydraulic power units 20a, 20b, the control units 26a, 26b of which are designed for synchronous control of hydraulic cylinders 16a, 16b, 16c, 16d. The adjustment of the control units 26a, 26b is made possible by means of the data link 28. The control unit 26a is operated, and thus the control unit 26b is also influenced, by means of a remote control 36a. A line voltage connection 32a supplies the hydraulic power unit 20a directly, and, by means of an electrical connection 34 supplies the hydraulic power unit 20b indirectly, with supply voltage. The hydraulic arrangement 24 of the climbing unit 10 can in particular be used for climbing in a shaft.

[0076] FIG. 11 shows a climbing formwork 22, the climbing units 10a, 10b of which communicate by means of a data link 28. The data link 28 is connected directly or, as shown in FIG. 11, indirectly, by means of a control unit 26a, to a remote control 36a. Furthermore, the data link 28 is connected directly or, as shown in FIG. 11, indirectly, by means of a control unit 26b, to a remote control 36b. The hydraulic arrangement 24 can electively be controlled by the remote control 36a or the remote control 36b. The other remote control 36a, 36b in each case can be used for monitoring or observation, e.g. if an operator cannot see the entire climbing formwork 22.

[0077] FIG. 12 shows a climbing formwork 22, in which the control units 26a, 26b of the climbing formwork 22 can be electively controlled by means of a remote control 36a, a remote control 36b or a remote control 36c. The remaining two remote controls 36a-36c can be used for monitoring the climbing process.

[0078] FIG. 13 shows a portion of a climbing unit 10 comprising a hydraulic power unit 20. The hydraulic power unit 20 comprises a hydraulic unit 38 having a hydraulics housing 40. The hydraulic power unit 20 furthermore comprises a control unit 26a which is arranged in a control case 42. In the present case, the control case 42 is formed in a frame-like manner. The hydraulics housing 40 is arranged on the control case 42 so as to be reversibly detachable, with the result that the hydraulic power unit 20 is formed in a modular manner. This facilitates the servicing of the hydraulic power unit 20. The hydraulic power unit 20 is designed for being placed on the ground and/or for being fastened to a railing 44 of the climbing unit 10.

[0079] The hydraulic unit 38 comprises a motor (not shown) in the form of an oil-immersed motor. The motor actuates two pumps (not shown) in the hydraulic unit 38. The pumps supply hydraulic lines 18a, 18b with fluid, the hydraulic lines 18a, 18b supplying hydraulic cylinders (not shown).

[0080] The control unit 26a controls the motor. Alternatively or in addition thereto, the control unit 26a can control valves and/or throttles 46 which are connected to the hydraulic lines 18a, 18b. Pressure gages 48a, 48b check the pressure in the hydraulic lines 18a, 18b, so that the control unit 26a can carry out pressure regulation.

[0081] A line voltage connection 32 and a data link 28 are connected to the control unit 26a. It is furthermore possible for a remote control 36a to be connected to the control unit 26a, the connection cable of which remote control is visible in FIG. 13.

[0082] The control unit 26a can comprise a switch 50, at which actuation of a first hydraulic cylinder and/or of a second hydraulic cylinder or of the hydraulic lines 18a, 18b can be selected. Furthermore, it is possible to select, at the switch 50, control of the control unit 26a by means of a further control unit (not shown) that is connected to the control unit 26a via the data link 28.

[0083] FIG. 14 shows a hydraulic power unit assembly that comprises a motor 104. The motor 104 drives two pumps 105a, 105b by means of a common shaft of the motor 104. In this case, the pump 105a is associated with the hydraulic cylinder 16a, and the pump 105b is associated with the hydraulic cylinder 16b, the hydraulic cylinders 16a, 16b being connected to the two pumps 105a, 105b by means of hydraulic lines 18a, 18b. Furthermore, two directional valves 102a, 102b, two pressure limiters 103a 103b and a filter 106 are integrated into the hydraulic lines 18a, 18b. In particular the integration of the directional valves 102a, 102b makes it possible for the hydraulic cylinders 16a, 16b to be able to be actuated selectively. It is thus possible, for example, in one embodiment, for just one of the two hydraulic cylinders 16a, 16b to be operated. Complete shutdown of the cylinders is likewise possible.

[0084] Considering all the figures of the drawings in overview, the invention relates, in summary, to a hydraulic arrangement 10, 10a, 10b. The hydraulic arrangement 10, 10a, 10b comprises a plurality of hydraulic power units 20, 20a-20d, the control units 26a-26d of which are connected, in particular in series, by means of a data link 28. The control units 26a-26d are preferably designed to electively control only the directly associated hydraulic cylinders 16a-16d thereof or to also control, indirectly via the data link 28 and the control unit 26a-26d of a further hydraulic power unit 20, 20a-20d, the hydraulic cylinders 16a-16d associated with said hydraulic power unit 20, 20a-20d. The invention further relates to a climbing formwork 22 comprising at least one climbing unit 10, 10a, 10b, in particular a plurality of climbing units 10, 10a, 10b. The hydraulic power units 20, 20a-20d can be interconnected, by means of the data link 28, such that synchronous raising and/or lowering of all the climbing units 10, 10a, 10b can be achieved or is achieved. The hydraulic power units 20, 20a-20d are preferably connected in a master/slave arrangement or are preferably controlled in master/slave operation. More preferably, the hydraulic power units 20, 20a-20d are designed for switching from master/slave operation to standalone operation.