High-speed stroke-type moving device with a supply line, and power transmission chain herefor

Patent metadata

Field	Value
Publication number	US-2019257388-A1
Application number	US-201716343118-A
Country	US
Kind code	A1
Filing date	Sep 15, 2017
Priority date	Oct 18, 2016
Publication date	Aug 22, 2019
Grant date	—

Abstract

A high-speed stroke-type moving device for an elongate flexible body having at least one supply line. The device has a guideway for guided displacement of the body, having a spiral portion, in which at least part of the body is compactly accommodatable in a plurality of spaced tracks which are not in mutual contact and extend substantially spirally inwards. The invention provides that the body has a line guideway for the at least one supply line. According to the invention, the line guideway here has a first sub-portion which is guided in the spiral portion and an unguided second sub-portion having a first end which is connected at the end to the first sub-portion and a second end which is connected at the end to a rotary feedthrough for the at least one supply line. A corresponding device having an energy chain is furthermore disclosed.

First claim

What is claimed is:

1 . A high-speed stroke-type moving device for an elongate, flexible body, having at least one supply line and comprising:
a guideway for guided displacement of the body, having a spiral portion, in which at least part of the body is compactly accommodatable in a plurality of spaced tracks which are not in mutual contact and extend spirally inwards, wherein the body has a line guideway for the at least one supply line, wherein the line guideway comprises a first sub-portion which is guided in the spiral portion, and wherein the line guideway comprises an unguided second sub-portion having a first end which is connected to the first sub-portion and a second end which is connected to a rotary feedthrough for the at least one supply line.

2 . The high-speed stroke-type moving device as claimed in claim 1 , wherein the second sub-portion has a small bending radius in a direction of rotation of the spiral course and in an opposite direction of rotation is configured with a large, backwards bending radius.

3 . The high-speed stroke-type moving device as claimed in claim 1 , wherein the spiral portion has an inlet and a length of the second sub-portion at least corresponds to a distance between an axis of rotation of the rotary feedthrough and the inlet.

4 . The high-speed stroke-type moving device as claimed in claim 2 , wherein the second sub-portion has a bending radius in the direction of rotation which is less than or equal to an innermost curvature of the spiral portion.

5 . The high-speed stroke-type moving device as claimed in claim 1 , wherein the flexible body forms the line guideway and has a line duct for the at least one supply line.

6 . The high-speed stroke-type moving device as claimed in claim 1 , wherein the line guideway is of separate construction, in the form of an energy chain, and is provided on the flexible body.

7 . A device comprising:
an energy chain for at least one supply line, and a high-speed guideway comprising a spiral portion in which at least part of the energy chain is compactly accommodatable in a plurality of spaced tracks which are not in mutual contact and extend substantially spirally inwards, wherein the energy chain has a plurality of chain links which are swivelable relative to one another, are connected together in pairs by an articulated joint and form a line duct for protected guidance of the at least one supply line, and wherein the energy chain comprises a first sub-portion which is guided in the spiral portion, and wherein the energy chain comprises an unguided second sub-portion having a first end which is connected to the first sub-portion and a second end which is connected to a rotary feedthrough for the at least one supply line.

8 . The device as claimed in claim 7 , wherein the rotary feedthrough as a stationary connection side and a rotatable connection side, and the second end is non-rotatably connected to the rotatable connection side.

9 . The device as claimed in claim 7 , furthermore comprising at least one supply line,
wherein the rotary feedthrough has a helical course with one or more first helical turns, in which the supply line is wound around an axis of rotation, and one or more second helical turns, in which the supply line is wound in an opposite direction around the axis of rotation, and wherein a deflection arc which connects the first and the second helical turns and in which the supply line is reversed.

10 . The device as claimed in claim 7 , wherein the rotary feedthrough takes a form of a rotary joint for gas or liquid, or a slipring arrangement for electrical power or signals.

11 . The device as claimed in claim 7 , wherein the guideway has two guide profiles, having a substantially U-shaped profile cross-section, arranged parallel opposite one another, the course of which profiles defines the spiral portion and a linear portion subsequent the spiral portion.

12 . The device as claimed in claim 7 , wherein the first sub-portion is carried by the guideway and the second sub-portion is not guided by the guideway.

13 . The device as claimed in claim 7 , wherein the spiral portion is configured with a constantly curved spiral shape.

14 . The device as claimed in claim 7 , wherein the spiral portion is elongate in a manner of an oval spiral with straight portions which connect spiral arcs.

15 . The device as claimed in claim 7 , wherein the chain links of the energy chain comprise at least in the second sub-portion, a swivel angle limit stop at each articulated joint such that the second sub-portion has a bending radius in a direction of rotation of the spiral which is less than or equal to an innermost curvature of the spiral portion, and an extension angle limit stop such that the second sub-portion extends in extended manner in the an opposite direction of rotation.

16 . The device as claimed in claim 7 , wherein the spiral portion has an inlet and a length of the second sub-portion at least corresponds to a distance between the axis of rotation of the rotary feedthrough and the inlet.

17 . The device as claimed in claim 7 , wherein a drive comprising an electric motor is in operative connection with the flexible body.

18 . The device as claimed in claim 7 , wherein the flexible body is used as at least one of:
a drive chain or cable to transmit thrust and/or tensile force in a machine; a roller shutter for a machine cover; or a slatted roller shutter of a high-speed lifting door.

Assignees

• Igus Gmbh

Inventors

• Theiss Georg

Classifications

• F16G13/20

  stiff; Push-pull chains · CPC title

• B65H75/4449

  Arrangements or adaptations to avoid movable contacts or rotary couplings, e.g. by the use of an expansion chamber for a lenght of the cord or hose · CPC title

• B65H2701/3911

  Chains · CPC title

• H02G3/0462

  Tubings, i.e. having a closed section · CPC title

• F16G13/16 Primary

  with arrangements for holding electric cables, hoses, or the like · CPC title