DE8514658U1 - Storage for an excavator drum cable with torsion-free lead out by means of a line storage - Google Patents

Description

Storage for an excavator drum cable with torsion-free lead-out by means of a line memory

The invention relates to a memory for an excavator drum cable including the cable which, in addition to the power cable cores, has a communication line Contains / consists of a bearing block to be attached to the excavator, in which the hollow shaft of a cable drum is mounted, on which the cable to be wound and unwound is located. Its purpose is a torsion-free leading out of the communication line from the store to the excavator, v / as happens by means of a line store.

The supply of electrical energy to excavators is usually done with cables. To provide the necessary mobility To reach the site, the excavators carry a cable drum with a sufficiently long cable on it. It will depend on the requirements unwound only such a cable length from the drum, as for connection to the stationary supply station is necessary. The drum guides only a limited number of cables depending on the length of the cable located on it Turns off.

As a rule, they are used to transfer the energy cable cores, or more precisely their conductors, from the rotating cable drum to the excavator four slip rings. The transfer becomes difficult if there are a large number of people of telecommunication wires or a plurality of optical fibers, which are housed in the power cable, are led to the excavator target. The usual slip rings are ruled out here.

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Fl 4762a 2 14.05.85

The invention is based on the object * in a memory for an excavator drum cable of the type mentioned at the outset, the multi-core message line routed in the cable next to the power cable cores without leading slip rings to the excavator.

This task is achieved by the characterizing features of the claim 1 solved. The solution is essentially that according to the feature group a) in the axis of the hollow shaft Cable drum a torsion-free storage is arranged, dssssn basic training from DE-OS 30 08 544 is known, and that the message line according to the feature group b) the excavator-side cable end is guided out via this memory to the excavator. With that a line connection is over a rotating link without separating the lines (telecommunication wheels or fiber optic cables) is possible.

The further development of the invention is specified in the subclaims. They concern the holder of the line storage the length of the drum of the line storage and the cores of the communication line. When these optical fibers are / are coming the advantages of the invention particularly come into their own.

An embodiment of the invention is shown in the drawing and is described in more detail below. The schematic diagram shows, in longitudinal section, a storage facility for an excavator drum cable, a communication line next to the power cable cores with several optical fibers (LWL), with a torsion-free cable lead-out by means of a cable storage.

Are marked with

1 bearing block for the shaft of the cable drum

2 hollow shaft of the cable drum

3 cable reels, rotatable

4 excavator housing wall

5 excavator drum cables

5a - branch to the stationary supply station 5b - end of the excavator side, power cable cores to slip rings

Fl 4762a "'3'" "'" 05/14/85

6 Fiber optic cable rait several fiber optic cables from the excavator drum cable led out

7 LWL ^ cable terminations with fixed fiber optic connections

8 Fiber optic double-ended cable from the termination to the excavator j 8a - branch to line memory

ι 8b - branch to the excavator

\ 9 FO cable storage (10-14), torsion-free

! lOa - rotating drum

ι lob - fixed Tironunel

11 - left memory bracket, plate, or bridge

12 - right storage bracket / arm

13 - Layers for fiber optics

14 - shaft, between the drums the laying spindle.

The memory for the excavator drum cable 5 consists of an am

Excavator 4 to be fastened bearing block 1, in which the hollow shaft 2

the cable drum 3 is stored on which the winding and unwinding Cable 5 is located.

In the axis of the hollow shaft 2 of the cable drum is a torsion-free Memory 9 arranged / which is designed as indicated in DE-OS 30 08 544 / that a shaft in its longitudinal axis 14 is arranged / to which a drum is firmly attached at one end, with a drum at a distance from it on the other end is rotatably mounted and secured against shifting, and the shaft between the drums 10a and b as a spindle for a publisher 13 is formed, which has a parallel to the shaft, reaching from one drum to the other laying arm around the shaft revolves and is axially displaceable, and that with the rotating drum via a differential element that controls the traversing speed is reduced / connected to half the drum speed. The lowering of the publisher speed is necessary because the laying arm of which changes with the number of revolutions of the cable drum 3 rotating storage drum 10a from (via the differential member) is driven and he the fiber optic line 8 from the must move rotating on the stationary storage drum 10b (and vice versa).

Fl 4762a

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if. The fiber optic line 6 of the dredger drum cable is from the dredger-side Cable end 5b out to an end connector 7 arranged on the flange of the cable drum 3 and from there a fiber optic connecting line 8 via the rotatable drum 10a, the publisher 13 and the fixed drum 10b of the store to the bearing block 1 and on to the excavator, while the Power cable cores are guided out of the cable end 5b in the usual manner via slip rings to the excavator.

The line storage device 9 is at the end of the rotatable drum 10 a by means of a plate or a web 11 in the hollow shaft 2 (~) the cable drum and at the end of the fixed drum 10b supported on the bearing block 1 by means of an arm 12.

By the Konsiopt of the line memory 9 is at a full

I rotation of the excavator cable drum 3 on the two storage

* my 10a and b only one line laying (unwinding and winding)

j executed by half a turn. Since the memory only

% then works when the line 8 is used as a single layer coil

I is wound on the drums, and each drum is the lead

. «Must be able to record in full length, it is necessary

■ 'j' that with a given maximum number of turns η of the excavator

4 cables 5 on the cable drum 3 and a diameter d of

I. Message trunk 8 is the length of each memory ^{stream J [} 'mel 1 = d χ n / 2.

^ The traverser 13 of the line storage has the windings (beats.

«The line 8 close to each other on the storage drums 10a

I or b to place, for which purpose he shifted the distance fjj 1 = drum length must be able to do what it means by means of the between I the two drums located spindle 14 and a rod I does. It follows that the length of the memory 9 with a little more <| is to be regarded as 3 1. For example, if you set the capacity of the cable drum with η = 200 cable windings and the cable diameter with d = 6, one obtains a storage length of about more than 1800 mm, which is practical. Also the

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Fl 4762a

05/14/85

The diameter of the hollow shaft 2 of the cable drum is sufficient for accommodating the line storage device 9, since the radii of curvature a communication line with several telecommunication addresses or a few fiber-optic cables in the cm range.

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Claims (4)

Fl 4762a 1 05/14/85 Claims: 1. Storage for an excavator drone cable including the cable next to ^ ■ the power cable cores contains a communication line, consisting from a bearing block to be attached to the excavator (4) (1), in which the hollow shaft (2) of a cable drum (3) is mounted, on which the cable to be wound and unwound (5) located, characterized in that a) a torsion-free accumulator in the axis of the hollow shaft (2) (9) is arranged which, as is known per se, is designed so that a shaft (14) is arranged in its longitudinal axis is, on which a drum is firmly attached at one end, with a distance to it on the other end a drum is rotatably mounted and secured against displacement, and the shaft between the drums (10a and b) as a spindle for (A traverse (13) is formed, the one to the shaft parallel laying arm reaching from one drum to the other, which revolves around the shaft and axially displaceable t is bar, and the one with the rotating drum over one Differential member, which reduces the publisher speed to half of the drum speed, is connected, and that b) the communication line (6) from the excavator-side Kabelij end (5b) out to one on the flange of the cable drum (3) \ arranged end closure (7) is guided, and from there a communication connection line (8) via the rotatable Drum (10a), the traverse (13) and the fixed drum (10b) of the store on the bearing block (1) And on to Excavator is guided, whereas the power cable cores from the cable end (5b) out in a manner known per se Slip rings are led to the excavator. ft ft ft t ■ Fl 4762a 05/14/85 2. Memory for an excavator drum cable according to claim 1, d a through characterized in that the line memory (9) at the end of the rotatable drum (10a) by means of a plate or a web (11) in the hollow shaft (2) of the cable drum and at the end of the fixed drum (10b) is held by means of an arm (12) on the bearing block (1). 3. memory for an excavator drum cable according to claim 1 or 2, characterized in that at a given maximum number of turns η of the bagging navel (5) on the cable drum (3) and a diameter d of the communication connection line (8) the length of each storage drum (10a and b) is 1 = d χ n / 2. 4. Memory for an excavator drum cable according to one of the claims 1 to 3, characterized in that the communication line (6, 8) contains several optical waveguides.