Energy supply system

Abstract

The invention relates to an energy supply system (1), in particular an energy supply system for a working device which can be fixed or fixed to a crane (2), comprising a line storage (3) for winding and unwinding at least one energy line (4) around a coil center (5) of the line storage (3), wherein at least one support (6) is provided for the at least one energy line (4) and the line storage (3) has an opening (7) for the support (6) and the energy line (4) to enter and exit, wherein the at least one support (6) can be opened by means of a hole for opening the line storage. The opening (7) for partially guiding the support (6) and the energy line (4) in the device (3) is guided by means of a guide mechanism (8) via a first guide section (9) through a first guide arc (10) and via a second guide section (11) connected to the first guide arc (10) through a second guide arc (12) and via a third guide section (13) connected to the second guide arc (12) and located further inward relative to the coil center (5) than the first guide section (9) and, if necessary, via further guide arcs and guide sections to the coil center (5) of the line storage device (3).

Description

Technical Field

[0001] The invention relates to an energy supply system having a line storage for winding and unwinding at least one energy line around a coil center of the line storage, wherein at least one holder for the at least one energy line is provided and the line storage has an opening for the entry and exit of the holder and the energy line. Background Art

[0002] This type of energy supply system is known, for example, from EP 2 610 208 A1. A support is guided in a guide device for winding onto or unwinding from a winding device. The guide device comprises a transport tray with a plurality of concentrically arranged stepped rails. The support has sections of varying widths that can be wound onto or unwound from the stepped rails, depending on the width. Winding proceeds from the innermost rail to the outermost rail. Changing lanes between the rails is achieved by varying the width of the rails and the support.

[0003] However, such an energy supply system has several disadvantages. For example, the design of the support is very complex. Winding devices with different storage capacities each require a specially mass-produced support. Furthermore, the height of the coil varies around the winding layer at the exit of the winding device. Summary of the Invention

[0004] The object of the present invention is to specify an improved energy supply system which does not exhibit the disadvantages discussed above.

[0005] This object is achieved by the energy supply system according to the invention.

[0006] The energy supply system has a cable accumulator for winding and unwinding at least one energy cable around a coil center of the cable accumulator.

[0007] The line accumulator can be used to hold the parts of the energy line that have not been removed from the line accumulator in a space-saving and sequential manner.

[0008] A coil center is understood to mean a point located essentially in the center of the cable accumulator, from which (or ending at which) the at least one power cable can be wound in one or more coils in the cable accumulator. This path can be similar to a flat spiral or helical line, for example.

[0009] In general, it can be provided for the energy supply system that the at least one energy line opens into a line reservoir in the center of the coil, for example via a suitable guide passage. Thus, it can be provided that the energy line opens into the line reservoir in the center of the coil, extends from there as a partially guided coil to an opening, and exits the line reservoir through this opening.

[0010] The energy supply system can be provided for a working device that can be fixed or fixed to a crane.

[0011] The energy supply system generally allows for relative movement of the working device (or generally the free end of the energy line) relative to the line reservoir. The working device can remain connected to the energy line during this movement. By winding or unwinding the at least one energy line into or from the line reservoir, the length of the energy line section removed from the line reservoir can be adapted to the relative movement between the working device and the line reservoir.

[0012] The at least one energy line may include at least one hydraulic supply line and / or at least one electrical supply line.

[0013] The energy supply system includes at least one support for the at least one energy-carrying line. The energy line can be arranged in the support (in other words, the support can surround the energy line) so that the energy line can be wound and unwound in the line storage by winding and unwinding the support. It is conceivable that the support comprises a jacket for one or more lines.

[0014] The line accumulator has an opening for allowing the support and the energy line to enter and exit. Thus, a section of the support can be introduced into the line accumulator through the opening or partially removed from the line accumulator through the opening.

[0015] To partially guide the holder in the cable accumulator, the holder of the energy supply system according to the invention (and therefore the power cable) can be guided by a guide mechanism via a guide section and a guide arc to the center of the coil of the cable accumulator.

[0016] The support can generally have a section with guides and a section without guides.

[0017] Here, a first guide section and a first guide arc portion connected thereto, a second guide section connected to the first guide arc portion and a second guide arc portion connected thereto are provided, and a third guide section connected to the second guide arc portion and located further inward relative to the center of the coil than the first guide section is also provided.

[0018] The first guide section and the second guide section can have essentially the same distance relative to the coil center (for example measured as a normal distance).

[0019] The first guide arc and the second guide arc can have substantially the same distance relative to the coil center (eg, measured as a normal distance to the center of curvature).

[0020] The first guide section and the second guide section can be arranged opposite one another with respect to the coil center.

[0021] The first guide arc and the second guide arc can be arranged opposite each other relative to the coil center. Additional guide arcs and guide sections can be provided as needed. Thus, for example, a third guide arc connected to the third guide section can be provided, located further inward relative to the coil center than the first guide arc, and a fourth guide section connected to the third guide arc, located further inward relative to the coil center than the second guide section. It should not be excluded that additional guide arcs and guide sections may also be provided.

[0022] The guide section and the guide arc can form a guide track, wherein the guide track can have a substantially helically wound course from the opening to the coil center, tapering toward the coil center (ie having a substantially decreasing radius of curvature).

[0023] This arrangement of the guide section and the guide curve makes it possible for them to have a substantially helical course from the opening toward the coil center and for the at least one carrier to be partially wound and unwound substantially helically in the cable accumulator toward the coil center.

[0024] In other words, such an arrangement of the guide section and the guide curve can have a substantially narrowing (tightly wound), spiral course starting from the opening of the cable accumulator toward the center of the coil of the cable accumulator.

[0025] This makes it possible to wind sections of the stent (and therefore the energy line) essentially helically, in multiple layers, and in the same direction (in the same winding direction) in the line storage and unwind them.

[0026] Due to the guide arch and the guide path and the corresponding guide means, the line accumulator itself can be designed essentially without movable parts.

[0027] The guide arches and guide sections as well as the corresponding guide means allow for better distribution of the forces that occur, thereby minimizing wear.

[0028] The guide arch and the guide path and the corresponding guide mechanism allow a sliding movement of the support relative to the guide arch and the guide path.

[0029] The guide section need not be connected to the guide arch (or vice versa) directly, uninterruptedly, or immediately. In exemplary embodiments of the guide section and the guide arch in the form of tabs or recesses, a certain gap or interruption may exist, for example, between the guide arch and the following guide section. However, the dimensions of this gap or interruption should be such that guidance of the support by its guide mechanism is ensured.

[0030] Provision is made for the third guide section to be arranged further inward relative to the coil center than the first guide section. The first guide section and the third guide section can, for example, be arranged opposite each other relative to the coil center, wherein the third guide section is located closer to the coil center.

[0031] The guide sections and also the guide arcs, in particular the first and the third guide sections, can be arranged and spaced apart in such a way that the support wound thereon does not touch itself between adjacent guide sections or guide arcs. This results in a reduction in the frictional forces that occur.

[0032] By means of the guide arch and the guide path as well as the corresponding guide means, the carrier can be partially guided in a forced manner in the pipeline storage.

[0033] The guide arch, guide path, and corresponding guide mechanism allow the support to be partially guided in the pipeline storage device in a shear-resistant manner. When a tensile or thrusting force is applied to the support in the direction of the support, the support can move along the guide arch and guide path. The guide arch, guide path, and corresponding guide mechanism can be engaged with each other so that the support can only move along the guide arch and guide path. This prevents longitudinal bending and the resulting unordered winding and unwinding.

[0034] The support can be designed in the form of at least one jacket for an energy line or in the form of at least one chain having chain links connected in an articulated manner to one another. Such chains are known in the prior art as energy chains or energy guide chains. The at least one energy line can be arranged in the inner region of the chain.

[0035] The stent is substantially freely bendable or rollable in at least one direction.

[0036] In the embodiment of the stent as a sheath for an energy line, the stent may have a certain transverse rigidity but can nevertheless be bent up to a certain minimum bending radius and thus be coiled.

[0037] In the embodiment of the support as a chain, the support can be bent or wound substantially freely in at least one direction (for example, at least in the winding direction) up to a certain minimum bending radius. Bending or winding in a certain direction can be prevented by the self-locking of the chain.

[0038] In one embodiment of the invention, it can be provided that the guide of the carrier is designed as an axial projection extending from at least a part of the carrier, in particular from the outer sleeve or from a part of the chain link.

[0039] Axial extension can generally be understood as an extension transverse to the longitudinal extension of the support. The axial protrusion can be provided with rollers or a friction-reducing coating to reduce friction. The protrusion can have a cylindrical or web-shaped shape.

[0040] The line accumulator can have at least one flat support plate, and the guide arches and guide paths can be designed in the form of guide rails in the support plate that correspond to the guide mechanism of the support. The guide rails can be designed in the form of steps, grooves, or recesses in the support plate. The guide rails can be designed continuously or partially, i.e., in sections arranged one next to the other.

[0041] In one embodiment of the invention, it is conceivable that the guide rail is designed as a single continuous groove or recess in the at least one support plate of the line accumulator.

[0042] In another embodiment of the present invention, it is possible to provide that the guide mechanism of the support is configured as a guide track in the form of a plurality of separate guide tracks in at least a portion of the outer shell or at least a portion of the chain link. Each guide track can for example be configured as a groove or a gap in the support.

[0043] The guide arches and the guide paths can be designed in the form of an arrangement or sequence of projections extending from the carrier plate.

[0044] The term "extending from the support plate" generally refers to extending from the plane of the support plate. The protrusions may be provided with rollers or a friction-reducing coating to reduce friction. The protrusions may have a cylindrical or web-shaped shape.

[0045] In another embodiment of the present invention, it can be provided that for the energy supply system,

[0046] - the bracket has an outer first end and an inner second end, and

[0047] the support comprises a section with a guide and a section without a guide, wherein the section without a guide extends from the second end to the section with a guide, and

[0048] The support is connected to the coil center at its second end, and the section without the guide mechanism is not guided in the cable accumulator.

[0049] In other words, it can be provided that the support in the cable accumulator has a guided section and an unguided section. The guided section can extend essentially from the opening of the cable accumulator via the guide path and the guide arc to the end of the section of the support with the guide means or to the beginning of the section of the support without the guide means. The unguided section can extend from there to the center of the coil.

[0050] The support can also have guides outside the line reservoir.

[0051] The first end of the holder can be arranged on the section of the holder that is removed from the line storage.

[0052] An unguided section can generally be understood as a section of the support that is not guided through a guide arch or guide path and a corresponding guide mechanism. Such an unguided section can be constructed similarly to a drag chain.

[0053] In this embodiment, it can be provided that the unguided section of the stent can be wound essentially helically around the coil center, and that the coil radius of the unguided section of the stent increases or decreases when the guided portion of the section is wound and unwound by the stent guide mechanism. During the transition to a loose or tight coil, the coil radius of the unguided section can increase or decrease.

[0054] In this case, it is possible to introduce the energy line into the line reservoir at the center of the coil via a rotationally rigid guide passage. The resulting twisting of the unguided section (which has a second end held rotationally rigidly in the center of the coil, for which a technically complex rotating passage is provided in other embodiments) during winding and unwinding of the guided portion of the section by the guide mechanism of the support can be accommodated by the substantially helical coil around the coil center and the increasing or decreasing coil radius. Space in the line reservoir required or freed by winding or unwinding the unguided section can be provided or filled by the guided portion of the support exiting or entering the line reservoir.

[0055] Alternatively, for this embodiment, provision can be made for a rotational guide to be provided for the energy line in the center of the coil. Twisting of the unguided section that occurs when winding and unwinding the guided section of the stent can be permitted or prevented by connecting the second end of the stent to the rotational guide.

[0056] As another alternative, but also in conjunction with the previously described substantially helical coil, it can be provided that the unguided section of the stent can be wound and unwound around the coil center in an opposite position when the guided section of the stent is wound and unwound. The movement of the unguided section of the stent can be similar to that of a two-layered drag chain that can be wound around the coil center in a sliding arrangement.

[0057] When the unguided section of the support is wound around the center of the coil, it can generally be provided that the unguided section rests on and slides along the section of the support that is guided along the guide path and the guide arc. In particular, this can occur when the winding radius of the unguided section of the support increases (transition to the unwound coil) during the winding of the guided section.

[0058] For energy supply systems, it can generally be provided that the distance between the guide arches is essentially invariable.

[0059] The winding of the holder (and therefore the energy line) into the line storage or the unwinding from the line storage can take place along a fixedly predeterminable or predefined guide path formed by a guide section and a guide curve.

[0060] For the energy supply system, it can generally be stipulated that

[0061] - the guide arc has a winding angle of substantially 180°, and / or

[0062] the guide curves have the same and / or different radii of curvature, wherein the guide curves with different radii of curvature have a decreasing radius of curvature from the opening of the line reservoir towards the center of the coil, and / or

[0063] - The corresponding curvature radius of the guide arc is constant.

[0064] The guide arcs can each be of semicircular design.

[0065] Groups of guide curves with different curvature radii (these guide curves have a decreasing curvature radius from the opening of the line reservoir toward the coil center) can be arranged concentrically. The grouping can be performed, for example, on opposite sides relative to the coil center.

[0066] For the energy supply system, it can generally be provided that the respective guide sections have a substantially straight course and / or have substantially the same longitudinal extension.

[0067] For the energy supply system, it can generally be provided that the line accumulator has a substantially elongated shape with a longitudinal extension that is greater than a transverse extension, and that the guide section extends substantially along the longitudinal extension of the line accumulator.

[0068] Due to the elongated shape of the cable storage, the length of the energy cable that can be wound up in the cable storage or unwound from the cable storage can be optimized.

[0069] The line accumulator can, for example, have a substantially rectangular shape, wherein the guide arches are arranged on the short sides of the rectangle and the guide sections are arranged along the long sides of the rectangle.

[0070] For the energy supply system, it can generally be provided that the winding and unwinding of the at least one stent takes place essentially in one plane, thereby enabling a cross-free winding of the stent.

[0071] For the energy supply system, it can generally be provided that the entry and exit of the at least one support through the opening takes place at a fixed position of the pipeline storage device. This can be achieved by connecting the first guide section to the opening.

[0072] In energy supply systems known from the prior art, the position of entry into or exit from the cable storage varies depending on the length of the stent wound or unwound in the cable storage. In contrast, the energy supply system according to the present invention can provide for this to take place at a fixed position in the cable storage, thereby making the path of the stent removed from the cable storage more predictable.

[0073] For energy supply systems, it can generally be provided that the at least one support has a substantially constant transverse extension, thereby enabling a simple adaptation of the support to the length that can be wound up in the cable storage.

[0074] The energy supply system may include a drive device acting on the at least one support for winding and unwinding the at least one support. The drive device may be in the form of one or more driven rollers or driven gears. The drive device may include a force accumulator, for example, in the form of a spring, or a motor.

[0075] The energy supply system can generally provide for an adjustable position of the coil center in the line reservoir. For example, the coil center can be arranged in the line reservoir so as to be linearly movable. For this purpose, a drive device can preferably be provided. Preferably, the coil center in the line reservoir can be arranged so as to be linearly movable in the direction of the guide section and / or transversely to the guide section.

[0076] By making the position of the coil center adjustable in the cable accumulator, the length of the unguided section of the support can be reduced.

[0077] Protection is also claimed for a crane, in particular a crane, having an energy supply system as described above.

[0078] The crane can have a working device, wherein the energy supply system can allow relative movement of the working device relative to the line reservoir. The working device can remain connected to the energy line during the movement, and the length of the section of the energy line removed from the line reservoir can be adapted to the relative movement between the working device and the line reservoir.

[0079] In such a crane, the energy supply system can be fastened to a boom of the crane, for example to an arm of a boom system.

[0080] Advantageously, the energy supply system can be arranged on an internal boom, for example at the beginning of a telescopic arm system, and the working device supplied by the energy supply system can be arranged on an external boom movable relative to the working device, for example at the end of a telescopic boom of the telescopic arm system.

[0081] When the telescopic arm system is extended and retracted, the length of the section of the support removed from the line accumulator and thus the length of the power line can be adapted to the relative movement between the working device and the line accumulator.

[0082] Other applications of the energy store according to the invention are likewise conceivable, for example for CNC machining centers, industrial robots or generally movable machine parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] Embodiments of the present invention are discussed with reference to the accompanying drawings. In the drawings:

[0084] Figure 1 In a first embodiment, an energy system arranged on a cantilever is shown.

[0085] Figure 2 An energy storage device according to a second embodiment is shown in isolation,

[0086] FIG3 shows an energy storage device according to a first embodiment in isolation,

[0087] FIG4 shows a further view of the energy storage device according to the first embodiment in isolation,

[0088] 5a to 5j show sectional views of the unwinding or winding process of a support according to a first embodiment from a line accumulator of an energy store,

[0089] Figure 6shows a cross section through an energy storage device according to a first embodiment,

[0090] Figure 7a 、 7b 7c shows schematic diagrams of different embodiments of the stent and the stent guidance,

[0091] Figure 8 An embodiment of an energy storage device with a rotary feed-through is shown,

[0092] Figure 9 An embodiment of an energy storage device with multi-layered, opposing coils of the unguided part of the support is shown.

[0093] Figure 10a and 10b shows an embodiment of an energy storage device with a movable coil center,

[0094] Figure 11a and 11b An embodiment of an energy storage device with a drive is shown, and

[0095] Figures 12a to 12d A view showing a crane with an energy guide. DETAILED DESCRIPTION

[0096] exist Figure 1 The energy supply system 1 is shown, which is arranged on a crane (not shown in detail here) with a housing 20 accommodating a line reservoir 3 (see Figures 12a to 12d ) on an inner cantilever arm 36. The holder 6, which can be wound in or unwound from the line storage 3, is fixed with a first end 30 on an outer cantilever arm 40 which is movable relative to the line storage 3.

[0097] exist Figure 2 In FIG, an embodiment of an energy supply system 1 is shown in isolation, which has a line reservoir 3 arranged in a housing 20, with a portion of a support 6 being removed from an opening 7 of the line reservoir. In this embodiment, the support 6 consists of a chain 22 with chain links 23, on which guide means 8 are arranged in the form of two axial projections 24 per chain link 23. In this embodiment, the line reservoir 3 has an elongated, approximately rectangular shape. This embodiment of the support 6 is also Figure 11a and 11b An embodiment of an energy storage device 1 is shown.

[0098] FIG3 shows another embodiment of an energy supply system 1 in isolation, wherein the energy supply system 1 again has a line reservoir 3 arranged in a housing 20, from whose opening 7 a portion of a support 6 is removed. In this embodiment, the support 6 is formed by a chain 22 having chain links 23, on which guide means 8 are arranged in the form of an axial projection 24 per chain link 23. In this illustration, the support plate 26 of the line reservoir 3 is visible due to the partially concealed cover of the housing 20.

[0099] FIG4 shows the view of FIG3 , wherein the cover of the housing 20 is completely hidden. It can be seen that at least one energy-conducting line (not visible here, see FIG5a to 5j and FIG5b ) is provided. Figure 6 ) is guided by a guide mechanism 8 via a first guide section 9, a first guide arch 10, a second guide section 11 connected to the first guide arch 12, and a third guide section 13 connected to the second guide arch 12 and located further inward relative to the coil center 5 (see also 5 a) than the first guide section 9, and similarly via further guide arches 15, 17 and guide sections 14, 16, 18, to the coil center 5 of the cable accumulator 3, so that the holder 6 can be introduced and removed through an opening 7 for partially guiding the holder 6 and the energy cable in the cable accumulator 3. The further course of the holder 6 between the end of the innermost guide section 18 and the coil center 5 is shown in dashed lines in FIG4 and can be seen in detail in FIG5 a.

[0100] The third guide section 13 is arranged further inward relative to the coil center 5 than the first guide section 9. The first guide section 9 and the third guide section 13 are arranged opposite each other relative to the coil center 5, wherein the third guide section 13 is located closer to the coil center 5.

[0101] Furthermore, a third guide arc 14 is shown connected to the third guide section 13 and located further inward relative to the coil center 5 than the first guide arc 10. A fourth guide section 15 is also shown connected to the third guide arc and located further inward relative to the coil center 5 than the second guide section 11. Similar considerations apply to the other guide arcs 16 and 18 and the wide guide sections 17 and 19. It should not be excluded that further guide arcs and guide sections other than those shown may be provided.

[0102] In the embodiment shown, the guide sections 9 , 11 , 13 , 15 , 17 , 19 and the guide arches 10 , 12 , 14 , 16 , 18 form a guide track 27 , wherein the guide track 27 has a substantially helically wound course from the opening 7 toward the coil center 5 , which tapers toward the coil center 5 .

[0103] In the embodiment shown, it can also be seen that

[0104] The guide arcs 10, 12, 14, 16, 18 have a winding angle of substantially 180°, and

[0105] the guide curves 10, 14, 18 or the guide curves 12, 16 have the same and / or different radii of curvature, wherein the guide curves 10, 14, 18 or the guide curves 12, 16 with different radii of curvature have a decreasing radius of curvature from the opening 7 of the line reservoir 3 toward the coil center 5, and

[0106] The respective radii of curvature of the guide arcs 10 , 12 , 14 , 16 , 18 are constant.

[0107] In the embodiment shown, the guide arches 10 , 12 , 14 , 16 , 18 are each substantially semicircular in design.

[0108] Groups of guide curves 10, 14, 18 and 12, 16 with different radii of curvature (these guide curves have a decreasing radius of curvature from the opening 7 of the line reservoir 3 toward the coil center 5) can be arranged concentrically. The grouping of guide curves 10, 14, 18 and 12, 16 can be performed on opposite sides relative to the coil center 5.

[0109] In the embodiment shown, the guide sections 9 , 11 , 13 , 15 , 17 , 19 have a substantially rectilinear course and substantially the same longitudinal extension.

[0110] In the embodiment shown, the line accumulator 3 has a substantially elongated shape with a longitudinal extension that is greater than a transverse extension, and the guide sections 9 , 11 , 13 , 15 , 17 , 19 extend substantially along the longitudinal extension of the line accumulator 3 .

[0111] 5a to 5j show the unwinding of the support 6 from the line storage 3 according to the embodiment of Fig. 4. The winding of the support 6 into the line storage 3 is in reverse order as can be inferred from the figures.

[0112] 5a shows a substantially completely wound line reservoir 3. The guided portion of the section 33 of the support 6 with the guide means 8 extends substantially over the entire length of the guide track 27 formed by the guide sections 9, 11, 13, 15, 17, 19 and the guide arches 10, 12, 14, 16, 18.

[0113] exist Figure 5j, the cable reservoir 3 is shown essentially completely unwound. The guided part of the section 33 extends essentially over the minimum length of the guide section 9 connected to the opening 7. The unguided section 32 (determined by the rotationally fixed guide passage 37) is essentially completely wound around the coil center 5.

[0114] In contrast to FIG4 , only the support plate 26 shown in FIG4 is omitted in FIG5 a to 5 j , except for the partial length of the support 6 removed from the line accumulator 3 . It can be seen that the line accumulator 3 has a further support plate 26 on the back side (located perspectively behind the support 6 in the views of FIG5 a to 5 j ), which in turn has guide sections 9, 11, 13, 15, 17, 19 and guide curves 10, 12, 14, 16, 18 . The support 6 is partially guided along the guide sections 9, 11, 13, 15, 17, 19 and guide curves 10, 12, 14, 16, 18 to the coil center 5 of the line accumulator 3 . Due to the presence of two support plates 6 , the support 6 is guided on both sides (see also FIG5 a). Figures 7a to 7c ). However, this does not necessarily have to be the case, as unilateral guidance is also conceivable.

[0115] In the embodiment shown, the guide rail 27 is designed as a single continuous groove in the support plate 26 of the line accumulator 3 .

[0116] The guide sections 9 , 11 , 13 , 15 , 17 , 19 and the guide arches 10 , 12 , 14 , 16 , 18 are arranged and spaced apart such that the support 6 wound thereon does not touch itself between adjacent guide sections 9 , 11 , 13 , 15 , 17 , 19 and guide arches 10 , 12 , 14 , 16 , 18 .

[0117] The support 6 has a section 33 with guides 8 and a section 32 without guides. The section 32 without guides extends from the second end 31 of the support 6 to the beginning of the section 33 with guides 8, at which a first guide 41 of the guided portion of the section 33 with guides 8 is arranged. The support 6 is connected to the coil center 5 at its second end 31. The section 32 without guides is not guided in the line accumulator 3, that is, it is not guided by the guide sections 9, 11, 13, 15, 17, 19 and the guide arches 10, 12, 14, 16, 18.

[0118] In other words, the support 6 in the cable accumulator 3 has a guided section 33 with guide means 8 and an unguided section 32 without guide means. The guided portion of the section 33 extends essentially from the opening 7 of the cable accumulator 3 via the guide sections 9, 11, 13, 15, 17, 19 and the guide sections 10, 12, 14, 16, 18 to the end of the section 33 of the support 6 with guide means 8 or to the beginning of the section 32 of the support 6 without guide means 8. From there, the unguided section 32 extends to the coil center 5.

[0119] In Figures 5a to Figure 5j In the embodiment shown in , the unguided section 32 of the support 6 can be wound essentially helically around the coil center 5, and the coil radius of the unguided section 32 of the support 6 increases or decreases when the guided part of the section 33 is wound and unwound by the guide mechanism 8 of the support 6. The enlargement (for example, in the transition from FIG. 5 b to FIG. 5 a) or reduction (for example, in the transition from FIG. 5 a to FIG. 5 b) of the coil radius of the unguided section 32 can occur during the transition to a loose (wound) or tight (unwound) coil.

[0120] In the illustrated embodiment, at least one energy line 4 leads into the line reservoir 3 in the coil center 5 via a rotationally fixed guide passage 37. The support 6 adjoins the rotationally fixed guide passage 37 tangentially in the direction of the guide sections 9, 11, 13, 15, 17, and 19. The twisting of the unguided section 32 (which has a second end 31 held rotationally fixed in the coil center 5, for which a rotation passage 34 is provided in this embodiment) that occurs during the winding and unwinding of the guided portion of the section 33 by the guide mechanism 8 of the support 6 is permitted by the substantially helical winding of the section 32 around the coil center 5 and the increasing or decreasing coil radius. The space required or freed up in the line reservoir 3 by the winding or unwinding of the unguided section 32 can be provided or filled by the guided portion of the support 6 from or into the line reservoir 3 (for this purpose, see, in particular, FIG. 5 a and FIG. 5 b). Figure 5j ).

[0121] When the unguided section 32 of the support 6 is wound around the coil center 5, the unguided section 32 rests on and slides along the section 33 of the support 6 that is guided on the guide sections 9, 11, 13, 15, 17, 19 and the guide strips 10, 12, 14, 16, 18. In particular, this can occur when the winding radius of the unguided section 32 increases (transition to the unwound coil) during the winding of the section 33.

[0122] In Figures 5a to Figure 5jWhen removing the holder 6 from the line storage 3, the first guide 41 of the guided part of the section 33 is moved from the innermost guide section 19 along the guide track 27 formed by the guide sections 9, 11, 13, 15, 17, 19 and the guide arches 10, 12, 14, 16, 18 in the direction of the opening 7. The holder 6 is removed from the line storage 3 at a fixed position.

[0123] The guide sections 9, 11, 13, 15, 17, 19, guide rails 10, 12, 14, 16, 18, and corresponding guide means 8 allow the support 6 to be partially guided in the pipeline storage 3 in a shear-resistant manner. When a tensile or thrust force is applied to the support 3 in the direction of the support 6, the support 6 can be guided and moved along the guide sections 9, 11, 13, 15, 17, 19, and guide rails 10, 12, 14, 16, 18. The guide sections 9, 11, 13, 15, 17, 19, and guide arches 10, 12, 14, 16, 18 engage with the corresponding guide means 8 so that the support 6 can only move along the guide sections 9, 11, 13, 15, 17, 19, and guide arches 10, 12, 14, 16, 18. This prevents longitudinal bending of the support 6 and, consequently, unsequential winding and unwinding.

[0124] exist Figure 6 5 a shows a cross section through an energy storage device 1 according to the embodiment of FIG. 5 a .

[0125] Here, a plurality of energy lines 4 arranged in the interior of the support 6 can be seen. In the section 33 having the guide 8, the support 6 has an axial projection extending from the support 6. This projection has rollers 25 mounted thereon, which engage in guide sections 9, 11, 13, 15, 17, 19 and guide arches (not visible here) in the support plate 6. The unguided section 32 without a guide is not guided by the guide sections or guide arches.

[0126] It can be seen that the winding and unwinding of the support 6 takes place approximately in a plane parallel to the support plate 6. It can also be seen that the support 6 has a substantially constant transverse extension.

[0127] exist Figure 7a , an embodiment of a support 6 is schematically shown, wherein the support has projections 24 extending axially from the support and engaging in groove-shaped guide rails 27 of a support plate 26 of the line accumulator 3. The energy line 4 is arranged inside the support 6. This embodiment essentially corresponds to the embodiment of FIGS. 5 and 6 .

[0128] exist Figure 7bSchematically shows an embodiment of a support 6, wherein the support 6 is designed in the form of a jacket 21 of the energy line 4. Figure 7b Similar to the embodiment of FIG, the guide element of the bracket 6 is configured with an axially protruding protrusion 24 and a guide track 27.

[0129] exist Figure 7c , an embodiment of a support 6 is schematically shown in FIG, wherein the guide means of the support 6 are designed as guide rails 28, here in the form of a groove, in at least a part of the support 6, and the guide arcs and the guide sections are designed in the form of an arrangement of projections 29 extending from the support plate 6. When the support 6 is designed as a chain with chain links, the guide rails 28 can be designed in the form of guide rails arranged in a row with each other in the individual chain links. The arrangement of projections 29 extending from the support plate 6 can be designed as shown in FIG. Figure 6 The embodiment of the invention is based on the course of the guide rail 27 consisting of the guide sections 9, 11, 13, 15, 17, 19 and the guide arches 10, 12, 14, 16, 18. It is also conceivable that the support 6 in the form of the jacket 21 of the energy line 4 is connected to the guide rail 27. Figure 7b Schematic diagram of a similar embodiment.

[0130] exist Figure 8 5 shows an embodiment of an energy storage device 1 similar to that of FIG. 5 , except that, unlike the embodiment of FIG. 5 , a rotational guide 34 is provided in the wire coil center 5 . As described with respect to the embodiment of FIG. 5 , the twisting of the unguided section 32 that occurs when winding and unwinding the guided section 33 of the support 6 can be permitted or prevented by connecting the second end 31 of the support 6 to the rotational guide 34 . Because the unguided section 32 is not helically wound around the coil center 5 when the support 6 is removed from the line storage 3 , the unguided section 32 can be made shorter in its longitudinal extent. This also reduces the transverse expansion of the line storage 3 .

[0131] Figure 9 5 , wherein here too, a rotationally fixed guide passage 37 is provided in the coil center 5 . However, unlike the embodiment of FIG. 5 , the unguided section 32 of the support 6 can be wound and unwound in opposite positions around the coil center 5 during winding and unwinding of the guided section 33 of the support 6 . During progressive unwinding of the support 6 from the cable accumulator 3 or at the start of winding of the support 6 in the cable accumulator 3 , the unguided section 32 can be wound substantially helically around the coil center 5 .

[0132] exist Figure 10aFIG. 1 shows an embodiment of an energy storage device 1 in which the position of the coil center 5 in the line storage device 3 is adjustable. The adjustment range is indicated by a dashed line. Figure 10a The guide rail 9 , 11 , 13 , 15 , 17 , 19 is arranged linearly in the line accumulator 3 so as to be displaceable in the direction of the guide sections 9 , 11 , 13 , 15 , 17 , 19 .

[0133] exist Figure 10b FIG. 1 shows an embodiment of an energy storage device 1 in which the position of the coil center 5 in the line storage device 3 is adjustable. The adjustment range is again indicated by a dashed line. Figure 10b The guide rails 9 , 11 , 13 , 15 , 17 , 19 are arranged in the line accumulator 3 so as to be displaceable linearly and transversely to the guide sections 9 , 11 , 13 , 15 , 17 , 19 .

[0134] By making the position of the coil center 5 in the cable accumulator 3 adjustable, the length of the unguided section 32 of the support 6 can be reduced.

[0135] exist Figure 11a and 11b , a drive 38 acting on the holder 6 is shown for winding and unwinding the at least one holder 6. The drive 38 has a gear 39 that engages in a guide 8 in the form of a projection 24 of the section 33 of the holder 6 guided in the line accumulator 3. In this embodiment, the drive 38 acting on the holder 6 with the gear 39 is arranged at the beginning of the guide rail 27 adjacent to the opening 7. An arrangement at another position on the guide rail is also conceivable.

[0136] exist Figures 12a to 12c 2 shows a crane 2 with an energy supply system 1 .

[0137] The energy supply system 1 is fastened to an internal boom 36 of the crane 2, for example, the arm of a telescopic boom system, by means of a housing 20. The working equipment (not shown here) supplied by the energy supply system 1 can be arranged on an external boom 40 that is movable for this purpose, for example, at the end of a telescopic boom of a telescopic boom system. The support 6 can be connected to the working equipment or the external boom 40 by its first end 30.

[0138] The energy supply system 1 allows for a relative movement of the boom 40, and therefore of the working device, relative to the line reservoir 3. The working device can remain connected to the support 6 and the energy line 4 during the movement, and the length of the support 6 and of the section of the energy line 4 removed from the line reservoir 3 can be adapted to the relative movement between the working device and the line reservoir 3.

[0139] Reference Signs List

[0140] 1Energy supply system

[0141] 2 cranes

[0142] 3-pipeline memory

[0143] 4 Energy pipelines

[0144] 5 Coil Center

[0145] 6 brackets

[0146] 7 openings

[0147] 8 guide mechanism

[0148] 9The first guiding section

[0149] 10 first guide arc portion

[0150] 11 Second guide section

[0151] 12 second guide arc portion

[0152] 13Third guide section

[0153] 14 third guide arc portion

[0154] 15 Fourth guide section

[0155] 16 fourth guide arc portion

[0156] 17 The fifth guiding section

[0157] 18 fifth guide arc portion

[0158] 19 Sixth guide section

[0159] 20 shell

[0160] 21 coat

[0161] 22 chains

[0162] 23 links

[0163] 24 protrusion of the guide mechanism

[0164] 25 rollers

[0165] 26 bracket plate

[0166] 27 Guide rails for bracket plates

[0167] 28 jacket guide rails

[0168] 29 protrusion of the bracket plate

[0169] 30 First end portion of the bracket

[0170] 31 Second end of the bracket

[0171] 32 Sections without guide mechanism

[0172] 33 Section with guide mechanism

[0173] 34 Rotating through part

[0174] 35 cranes

[0175] 36 cantilever

[0176] 37 Anti-torsion guide through part

[0177] 38 drive device

[0178] 39 gears

[0179] 40 cantilever

[0180] 41 First guide mechanism

Claims

1. An energy supply system (1) comprising a line storage (3) for winding and unwinding at least one energy line (4) around a coil center (5) of the line storage (3), wherein: At least one support (6) for the at least one energy line (4) is provided and the line storage (3) has an opening (7) for allowing the support (6) and the energy line (4) to enter and exit, characterized in that the at least one support (6) can be guided to the coil center (5) of the line storage (3) by means of a guide mechanism (8) via a first guide section (9) through a first guide arc (10) and via a second guide section (11) connected to the first guide arc (10) through a second guide arc (12) and via a third guide section (13) connected to the second guide arc (12) and located further inwardly relative to the coil center (5) than the first guide section (9), the support (6) having an outer first end (30) and an inner second end (31). The invention relates to a support (6) having an end (31), and the support (6) having a first section (33) with a guide mechanism (8) and a second section (32) without a guide mechanism, wherein the second section (32) without a guide mechanism extends from the second end (31) to the first section (33) with the guide mechanism, and the support (6) is connected to the coil center (5) at the second end (31) of the support (6), and the second section (32) without a guide mechanism is not guided in the pipeline storage (3), the unguided second section (32) of the support (6) can be wound around the coil center (5) in a substantially spiral shape, and the coil radius of the unguided second section (32) of the support (6) increases or decreases when the guided part of the first section (33) of the support (6) is wound and unwound, and the energy pipeline (4) is introduced into the pipeline storage (3) in the coil center (5) through a torsion-resistant guide passage.

2. The energy supply system according to claim 1, wherein: The support is designed in the form of at least one jacket (21) of the energy line (4) or in the form of at least one chain (22) having chain links (23) connected to one another in an articulated manner.

3. The energy supply system according to claim 1 or 2, wherein: - the guide means (8) of the support (6) is designed as an axial projection (24) extending from at least one part of the support (6), and the line reservoir (3) has at least one flat support plate (26), and the guide arch and the guide path are designed in the form of a guide rail (27) in the support plate (26), or The guide means (8) of the support (6) is constructed as a guide rail (28) in at least one part of the support (6) in the form of a guide rail, and the guide arc and the guide section are constructed in the form of an arrangement consisting of projections (29) extending from the support plate.

4. The energy supply system according to claim 1 or 2, wherein: For the energy line (4), a rotation passage (34) is provided in the center of the coil (5).

5. The energy supply system according to claim 1 or 2, wherein: The unguided second section (32) of the support (6) can be wound and unwound around the coil center (5) in an opposite position when the guided part of the first section (33) of the support (6) is wound and unwound.

6. The energy supply system according to claim 1 or 2, wherein: The distance between the guide arches is essentially invariable.

7. The energy supply system according to claim 1 or 2, wherein: The guide arc has a winding angle of substantially 180°, and / or - the guide arcs have the same and / or different radii of curvature, wherein the guide arcs with different radii of curvature have a decreasing radius of curvature from the opening (7) of the line reservoir (3) towards the coil center (5), and / or - The corresponding curvature radius of the guide arc is constant.

8. The energy supply system according to claim 1 or 2, wherein: The respective guide sections have a substantially straight course and / or have substantially the same longitudinal extension.

9. The energy supply system according to claim 1 or 2, wherein: The line accumulator (3) has a substantially elongated shape with a longitudinal extension that is greater than a transverse extension, and the guide section extends substantially along the longitudinal extension of the line accumulator (3).

10. The energy supply system according to claim 1 or 2, wherein: The winding and unwinding of the at least one support (6) are performed essentially in one plane.

11. The energy supply system according to claim 1 or 2, wherein: The entry and exit of the at least one support (6) through the opening (7) takes place at a fixed position in the line accumulator (3).

12. The energy supply system according to claim 1 or 2, wherein: The at least one support (6) has a substantially constant transverse extension.

13. The energy supply system according to claim 1 or 2, wherein: The guide arc and the guide path have a substantially helical course from the opening (7) toward the coil center (5), and the at least one support (6) can be partially wound and unwound substantially helically in the line storage (3) toward the coil center (5).

14. The energy supply system according to claim 1 or 2, wherein: The position of the coil center (5) in the line accumulator (3) is designed to be adjustable.

15. The energy supply system according to claim 1, wherein: The energy supply system is an energy supply system for a working device that can be fastened to a crane.

16. The energy supply system according to claim 1, wherein: The at least one support (6) can be guided via further guide arches and guide sections to the coil center (5) of the line reservoir (3).

17. The energy supply system according to claim 3, wherein: The axial projection (24) has a roller (25) arranged thereon.

18. The energy supply system according to claim 1 or 2, wherein: - the guide means (8) of the support (6) is designed as an axial projection (24) extending from at least one part of the support (6), and the line reservoir (3) has at least one flat support plate (26), and the guide arch and the guide path are designed in the form of a groove in the support plate (26), or The guide means (8) of the support (6) is constructed as a guide rail (28) in at least one part of the support (6) in the form of a guide rail, and the guide arc and the guide section are constructed in the form of an arrangement consisting of projections (29) extending from the support plate.

19. The energy supply system according to claim 1 or 2, wherein: - the guide means (8) of the support (6) is designed as an axial projection (24) extending from at least one part of the support (6), and the line reservoir (3) has at least one flat support plate (26), and the guide arch and the guide path are designed in the form of a guide rail (27) in the support plate (26), or The guide means (8) of the support (6) is constructed as a guide rail (28) in the form of a groove in at least one part of the support (6), and the guide arc and the guide section are constructed in the form of an arrangement consisting of projections (29) extending from the support plate.

20. The energy supply system according to claim 3, wherein: The projection (29) has a roller arranged thereon.

21. The energy supply system according to claim 14, wherein: The coil center (5) is arranged in a linearly displaceable manner in the line accumulator (3).

22. The energy supply system according to claim 14, wherein: The coil center (5) is arranged in the pipeline storage (3) so as to be linearly displaceable in the direction of the guide section and / or transversely to the guide section.

23. Crane having an energy supply system (1) according to any one of claims 1 to 22.

24. The crane according to claim 23, wherein: The energy supply system (1) is fixed to the boom (36) of the crane.

25. The crane according to claim 23, wherein: The crane is a crane.

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