DE1945295A1 - Device for supplying energy to consumers moving on circular tracks - Google Patents

Description

19452S5

Patent application

of the Lord

Dipl.-Ing. Fritz Kühna, 404 Neuss, Further Str. 159

Device for supplying energy to consumers that move on circular paths

The invention relates to a device for supplying energy to consumers which can be moved on circular paths with the aid of flexible power lines firmly connected at both ends.

In technology there is often the task of generating energy, e.g. Supply electricity, compressed air or hydraulic fluid to movable consumers. If the consumer, e.g. an overhead crane, Can move back and forth on a relatively long path, so-called power lines are used to support the power supply lines Support car pulls or chains that can only be buckled to one side. This ensures that the lines of excessive Bending stresses kept free and always properly stored or stored in a trough or similar device. can be taken from this.

As soon as the consumer moves on a circular path, difficulties arise which cannot be solved with these known means. For example, it is customary to route the power supply line between the lower part and the rotatable upper part of a mobile crane or excavator through the Dremuitte and to arrange sliding contacts concentric to the axis of rotation when electrical energy is to be transmitted. Is ea is Druckülttelleitungen so

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these must also be guided through the center of rotation and equipped with rotatable couplings.

Sliding contacts as well as rotatable couplings have the disadvantage that they are relatively large structural Often serviced and yet replaced after a certain period of operation due to wear and tear have to. There are therefore such devices to be preferred in which the power lines at both ends, namely on the one hand on the fixed and on the other hand on the rotatable part, are firmly connected. With such a solution It is customary to provide a device from which a corresponding length of the Energy supply line is tightened and which pulls the line back again when rotated in the opposite direction. Such Devices are expensive, especially when the rotatable part moves in both directions, starting from a middle position to rotate more than 180 °.

The object of the invention is therefore to create a device of the type mentioned at the outset which is simply constructed and can therefore be manufactured at low cost, and in a wide variety of arrangements from to circular Railways moving consumers can be used. The invention proposed to solve this problem consists in that at least one rotatable washer is arranged on a stationary cylindrical ring, on the outer circumference there are supports for the power line and at least one deflection device, and that the power supply from a stationary bushing on the stationary ring in two strands of equal length in mutually opposite circumferential directions over the outside of the stationary ring each up to the deflection device out, wrapped around this to the outside and, over the supports on the rotatable ring disc in now to the section lying on the stationary ring

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running in the opposite circumferential direction, is combined again at the outlet parts.

A device designed in this way has the advantage that the entire space within the fixed cylindrical ring is free. This makes it mobile No need for cranes or excavators, the! Pivot pin for To accommodate the lines to form hollow. In addition, the device according to the invention can be used for such purposes in which the area of the axis of rotation must remain free and in which therefore so far only with electrical Energy transfer could be worked with sliding contacts, with which the Eontakt seemed rings with proportionally large diameters. The power supply with the help of pressure fluid hoses was among such Relationships so far only possible in an extremely complex way.

An essential advantage achieved by the invention is that the power lines are not in any operating state go limp and need to be coiled or pulled back in some way. Nevertheless already allows the device according to the invention in its simplest embodiment, starting from a central position, rotations of the rotatable part relative to the fixed part by in each case almost 360 ° or a total of almost two full turns from one end position to the other end position.

In many cases, emphasis will be placed on the power lines to protect against damage. In this case the device according to the invention is expedient in the manner configured that the stationary ring of two parallel, spaced apart, rotatably fixed interconnected annular disks is surrounded, between which the supports and the deflection device are attached are.

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Ba occur between the power lines and the supports and the deflection device relative movements exist According to a further proposal of the invention, the supports and the deflecting device from rotatable rollers.

So that they move in mutually opposite circumferential directions running strands of the power line on the deflection device do not rub against each other and become one of the course deviating from the plane perpendicular to the axis of rotation are forced, it is provided that the deflection device consists of two rollers arranged one behind the other in the circumferential direction, of which at least one is preferably in Is adjustable in the circumferential direction and / or resiliently mounted. It is thereby achieved at the same time that the desired tension to keep the line taut in the line, even if there is a subsequent elongation is maintained.

If the support and deflection rollers have the same diameter, the device can only use one roll size can be built.

For the Pail, that the power line is not divided into two, allows the device to subdivide strands looping around one another in opposite circumferential directions the per se required second strand can be replaced by a traction device.

Although the one with a simple device according to the invention Achievable rotation angle of around 720 ° should be sufficient for most applications, it is still possible to increase the angle of rotation beyond the specified dimension, that several independently rotatable ring disks are provided, which are either centric include or are arranged axially next to one another, in the latter pail each in the direction of the point of departure

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next ring disk arrangement compared to one with the previous one Ring disk assembly rotatably connected cylindrical ring is rotatable. In this case it takes over the cylindrical ring guided on the preceding washer has the task of the stationary cylindrical ring the first washer met. Since, for example, the second washer compared to the first washer by about can be rotated at the same angle as the first annular disk with respect to the stationary cylindrical ring, thus assumes the largest possible angle of rotation with each additional ring disk by almost two full turns.

An additional protection for the power line against pollution and damage from external influences can be achieved by placing the between a pair of ring disks located annulus to the outside through a freely rotatable on the annular disks, in the circumferential direction continuous cover provided with a feed-through opening at the point of departure for the power line is locked.

The invention is explained in more detail with reference to exemplary embodiments shown schematically in the drawing.

It shows:

if'ig. 1 shows a section through the device for supplying energy, wherein the cut is made in a plane that intersects the axis of rotation perpendicularly,

Jb ¹ Ig. 2 shows an enlarged section through J? Ig. 1 on line II - II,

3 shows a schematic representation of the device mch Fig. 1 at the end of the greatest possible counter-clockwise rotation,

Ki #. 4 one of the years. 3 corresponding representation of the

End division, dLe the device according to the largest oil Clockwise rotation,

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Pig. 5 shows another embodiment of the invention in FIG schematic representation,

Pig. 6- another possible embodiment of the invention, also shown seliematically,

fig. 7 one of the pig. 2 corresponding section through another embodiment of the invention,

8 shows a possibility of two devices according to the invention to be arranged concentrically to each other and

9 shows two devices according to the invention in an axial view Arrangement side by side, also shown in the section corresponding to the figure.

The device for supplying energy shown in FIG. 1 consists of a stationary, ie, cylindrical ring 1 'connected to the non-rotatable part of the machine, the width of which in the axial direction is adapted to the line to be accommodated. The inner cylindrical ring is surrounded by two annular disks 2 parallel to one another, arranged at a distance from one another and firmly connected to one another in the transverse direction, which are rotatably guided on the inner ring 1. Between the annular disks 2, of which the front one is not shown in FIG.

Furthermore, between the annular disks 2 in the part of the device located at the bottom in FIG. 1, there are two deflection rollers 4a and 4b, the diameter of which is matched to the bending radius of the power supply line. According to the schematic 1, the deflecting rollers 4a and 4b are arranged so as to be adjustable in a limited manner in the circumferential direction, for example in that their axes are mounted in elongated holes concentric to the inner ring 1. Between the pulleys 4a and 4b there is a tension spring 5 or a tensioning device which seeks to bring the rollers closer together.

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At the pulleys 4a and 4b at (the one shown in Pig. 1) Normal position diametrically opposite point is in the inner ring 1 at 7 an opening through which is passed through a power line 6 τοη inside to the outside. The power line can consist of electrical cables exist, which are summarized, for example, on a cable band, or pressure fluid hoses for the supply of Air, water, oil or the like can be formed.

The power line 6 "divides" immediately behind the opening 7 into two strands 6a and 6b, which, starting out from the opening 7, in mutually opposite circumferential directions around the outer surface of the inner ring 1 are lying around. The strand 6a is over the pulley 4a and from there, now in the opposite direction, over the in the vicinity of the outer circumference of the annular disks 2 supported support rollers 3 returned. Proceeds in a corresponding manner the strand 6b first on the outside of the ring 1 up to the pulley 4b, there changes its direction and goes back over the outside of the support rollers 3 to a point that is offset to the outside compared to the starting point. The two strands 6a and 6b are of equal length and are connected to one another at 8. The continuing from the connection point 8 Cable pull is connected to the rotating machine part.

From own. 2 showing a cut through Pig. 1 on the line II - II shows that the annular disks 2 except through the axes of the near the outer circumference provided support rollers 3 are connected further inside by rods 9 or the like. With their inside At the edges, the annular disks 2 engage in sliding guides 10 which are attached to the inner ring 1. Of course you can the sliding guide 10 can be replaced by other elements, for example by rollers or balls. Is essential only that the annular disks 2 are rotatably guided on the inner ring 1 smoothly.

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19452S5

The wiring harness 6a is in Pig. 1 shown as a cable tie. The width of the space between the ring disks 2 depends on the width of the cable tape or according to the number of lines to be accommodated ..

The space located between the annular disks 2 can, as indicated in FIG. 2, to the outside through a cover 11 must be locked. The cover 11, which has the shape of a cylinder jacket, is on the outer periphery of the disks movable. At the point of departure 8 for the line, a feed-through opening is provided in the cover 11.

If, starting from the position shown in Fig. 1, the Exit point 8 of the continuing line is rotated counterclockwise, is a rotation of almost 360 ° possible up to the first end position shown schematically in FIG. 3. This rotation becomes the one on the outside Cable loom 6b pulled, with the inner cable loom 6b moving away from the ring 1 on the pulley, which also moves counter to the clockwise direction due to this pulling movement with the ring disks 4b takes off. The rotation of the ring disks 2, which is generated by the retightening of the deflection roller 4b, is also the deflection roller 4a moves in the indicated direction. The one in front of the exit point 8 in the direction of rotation the outer part of the cable loom 6a is thus drawn in by the pulley 4a and onto the outer surface of the Inner ring 1 filed.

The same conditions arise if, according to FIG. 4, the rotation, starting from the central position shown in FIG. 1, clockwise. The departure point 8 places almost two between the two possible end positions full turns back. The closer the pulleys 4a and 4b are arranged side by side and the closer the

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Said roles can be moved to die.Zuführstelle 7 or the departure point 8, the greater the Angle of rotation between the two end positions.

If it is a Εηβ ^ ίβίβΐίμ ^ which cannot or should not be divided into two strands 6a and 6b, one of the strands 6a or 6b is replaced by a traction device.

Since the pulleys 4a and 4b rotate in the same direction with every movement of the device, it is also possible to only one of these roles, if applicable. with a medium splash, or two side by side freely rotatable rollers on one axis to use, over which the cable strands 6a and 6b are passed from opposite sides. Here is however, full utilization of the space located between the annular disks 2 by means of a correspondingly wide line arrangement not possible; however, a slightly larger angle of rotation is achieved.

■ Venn the cable strands 6a and 6b from two one above the other-Ij The relevant cables, cable ties, hoses or the like can be used instead of a pulley 4a or 4b uses two rolls lying close behind one another v / he the. The rollers have the same flange diameter, je-'JOWi The core diameter of the role that serves to deflect the somewhat shorter strand is twice as large the cable or hose thickness is smaller than that of the other roll.

Rosse odor small Abötützrollen used; - Jo on the size of the diameter of the device to be _f. In some j'iiifin you will use small and large reels at the same time, since the costs for large reels are considerably higher than for small reels. All rollers have flanges to allow the cables, hoses or the

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1945 285

to ensure the same and to avoid slipping. The risk of sliding sideways arises because the device is also in a horizontal or inclined position Position is used and the tension of the cable is not too high taking into account the ease of movement may be.

Pur cables with a round cross-section are expediently used Grooved rollers for deflection and support. In most cases it is best to do each strand Provide separate roles that run next to each other on fixed axes.

The ring disks can, if necessary. also as a lattice construction, e.g. for reasons of weight saving and lighter Mobility through reduced mass.

In Pig. 5 schematically indicated modified embodiment, the support rollers 4c are just as large like the pulleys 4a and 4b. This simplifies the production of the device, which is therefore only with needs to be equipped with a type of roller.

According to FIG. 6, it is also possible, in addition to the in arranged in the vicinity of the outer circumference of the annular disks 2 Support rollers 3 further rollers 3a near the inner circumference of the panes.

When the angle of rotation of the device is less than about two should be full revolutions, the pulleys 4a and 4b are arranged with a correspondingly larger distance from one another. The angle of rotation of the device decreases with the distance between the pulleys. Shortened accordingly the length of the cable strands 6a and 6b.

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In Pig. 7 is a section through corresponding to FIG reproduced a simpler embodiment of the invention. Here is only one on the cylindrical inner ring 1a Ring disk 2a rotatably arranged. In the vicinity of the outer circumference of the annular disk 2a, there are again support rollers 3 stored, which protrude on one side and are provided with side flanges. Of course, it is also possible here, to replace the support rollers 3 with larger rollers that match the pulleys. The sliding guide at 10 the one-sided loading of the annular disk 2a that now occurs is adapted.

If the angle of rotation that can be achieved with a simple device according to the preceding figures for the case of need is not sufficient, two or more devices can be connected in series which increases the angle of rotation by around 720 ° for each additional device.

One way to double the angle of rotation is in Mg. 8 shown schematically. In this embodiment, the annular disks 2, as mentioned, are opposite the fixed inner ring 1 are rotatable, of a further substantially matching arrangement surrounded by annular disks 2b. The annular disks 2b are rotatable at 10a on a cylindrical ring 1b, which in turn is rotatable on the annular disks 2 of the inner assembly.

It is also possible to let the annular disks 2 and 2b slide or roll directly on one another, wherein they are guided with the help of additional, externally arranged side walls. In this case, too, one is opposite to both Provide pairs of annular disks 2, 2b rotatable ring 1b.

In this exemplary embodiment, the point of departure of the lines from the inner device coincides with the feed point

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_. _12th 19452S5

the lines for the external device together. In this case, the cable clamp in question, at which the cable strands of the inner device are grouped together at the outlet to the outside, is expediently firmly connected to the ring 1b. "■ -

The mode of operation of the individual devices according to Pig. 8 is no different from that of the simple ones Device according to the preceding figures, apart from the fact that initially the inner, from the annular disks 2 and the device consisting of the ring 1b opposite the external device consisting of the ring disks 2b Task of a fixed inner ring fulfilled. For example, the external device has to be provided with appropriate stops to prevent the deflection pulleys Passing over the feed, rotated, the outer device now rotates including the ring 1b further, the internal device now taking effect. The ring disks 2 rotate at about half the rate Angular velocity of the external device.

Instead of arranging two or more devices concentrically to one another, there is also an embodiment according to FIG. 9 possible with several axially juxtaposed annular disk arrangements. As evidenced by Pig. 9 results in the one shows the horizontal arrangement, the fixed inner ring 12 is made wider. On the ring 12 and between its side disks 12a and 12b, there are two next to each other, each made up of annular disks 13a, 13b and 14a and 14b as well as support rollers 3 existing devices rotatably arranged in respective bearings 15a and 15b. The ring forms at 16 a stationary ring cylinder-shaped storage surface for the cable or hose strands of the lower device, which corresponds to the inner device according to FIG. 8.

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The upper one formed from the annular disks Ha and 14b The device is a ring-cylindrical storage surface for the cable or the like on the stationary ring 12 assigned with the aid of a bearing 19 rotatable ring 17, from which a driver arm 18 extends. This is done via the arm 18 Cable or the like of the lower device conductively with connected to the cable of the upper device. In this arrangement, too, is about twice the angle of rotation compared to a simple device achieved because after exhaustion of the angle of rotation of the upper device, the lower one becomes effective.

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Claims (1)

1945 285 Patent claims: Device for supplying energy to on circular. Railways of mobile consumers with the help of flexible power lines permanently connected at both ends, d a d μ_ ρ c h marked that on at least one rotatable annular disk (2, 2a) is arranged on a stationary cylindrical ring (1, 1b) the outer circumference of which are supports (3) for the power line (6a, 6b) and at least one deflection unit (4a, 4b) are located, and that the power line (6) from a stationary bushing (7) on the stationary ring (1) in two equally long strands (6a, 6b) in mutually opposite circumferential directions over the outside of the stationary ring (1) in each case up to the deflection device (4a, 4b), around this to the outside - placed and, over the supports (3) on the rotatable Ring washer (2) in now to the one on the fixed Ring (1) lying section in the opposite circumferential direction running, is summarized again at the point of departure (8). 2, device according to claim 1, characterized in that the stationary ring (t) is surrounded by two parallel, spaced-apart annular disks (Z) connected to one another in a rotationally fixed manner, between which the supports (3) and the Deflection device (4a, 4b) are attached. 3 ♦ Device according to claim 1 and / or 2, characterized g e k e an ζ e i c h η e t that the supports (3) and the deflection device (4a »4b) made up of rotatable rollers divided " 4. Device according to one or more of the preceding claims, characterized in that that the deflection device consists of two rollers (4a, 4b) "arranged one behind the other in the circumferential direction, of which preferably at least one is adjustable in the circumferential direction and / or resiliently mounted. 5. Device according to one or more of the preceding claims, characterized in that that the support and deflection rollers (4a, 4b, 4c) have the same diameter. 6. Device according to one or more of the preceding claims, characterized in that that when using only one strand of the power line, the second strand (6a or 6b) consists of a traction device. 7. Device according to one or more of the preceding claims, characterized in that that to achieve a larger angle of rotation of the outlet point (8) several independently rotatable against each other Ring disks (2, 2b; 13a, 13b, 14a, 14b) are provided, which either surround one another centrally or axially next to one another are arranged, in the latter pail the respectively in the direction of the point of departure next annular disk arrangement (14a, 14b) opposite one with the preceding annular disk arrangement (13a, 13b) rotatably connected cylindrical Ring (17) is rotatable. 8. Device according to one or more of the preceding claims, characterized in that that the annular space located between a pair of annular disks (2) is free to the outside through one on the annular disks rotatable, continuous in the circumferential direction and with a feed-through opening at the point of departure for the power line provided cover (11) is closed. 1 0 ci P- ^f 3 '* R