EP3782250A1 - Système de surveillance du fonctionnement d'une chaîne porte-câbles - Google Patents

Système de surveillance du fonctionnement d'une chaîne porte-câbles

Info

Publication number
EP3782250A1
EP3782250A1 EP19718595.2A EP19718595A EP3782250A1 EP 3782250 A1 EP3782250 A1 EP 3782250A1 EP 19718595 A EP19718595 A EP 19718595A EP 3782250 A1 EP3782250 A1 EP 3782250A1
Authority
EP
European Patent Office
Prior art keywords
line
chain
strain relief
measuring device
forces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19718595.2A
Other languages
German (de)
English (en)
Inventor
Konstantin SCHMER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Igus GmbH
Original Assignee
Igus GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Igus GmbH filed Critical Igus GmbH
Publication of EP3782250A1 publication Critical patent/EP3782250A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/12—Hauling- or hoisting-chains so called ornamental chains
    • F16G13/16—Hauling- or hoisting-chains so called ornamental chains with arrangements for holding electric cables, hoses, or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/18—Chains having special overall characteristics
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/103—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means using sensors fixed at one end of the flexible member
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/02—Gearings; Transmission mechanisms
    • G01M13/023—Power-transmitting endless elements, e.g. belts or chains
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G11/00—Arrangements of electric cables or lines between relatively-movable parts
    • H02G11/006—Arrangements of electric cables or lines between relatively-movable parts using extensible carrier for the cable, e.g. self-coiling spring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps

Definitions

  • the invention relates to a monitoring system for the operation of an energy guiding chain according to the preamble of claim 1.
  • Cable drag chains with these led lines are exposed to a great deal of stress, both with regard to the chain itself and with respect to the lines routed in it.
  • this relates to wear of components of the energy guiding chain, for example joint areas of the chain links.
  • the chain is arranged between the two relatively movable connection points with the formation of a order directing area, which connects, for example, a top and bottom strand of the chain.
  • this deflection area moves through the chain. Consequently, the lines routed in the energy guiding chain are also subject to a deformation when a predefined line section is transferred from a less curved, for example, linear state, to a more curved state, as present in the deflection region.
  • the desired position of the line is usually determined so that in the process of chain line sections do not come into contact with other components such as.
  • the chain links inner sides, including other Lei, undesirable. Changes the line at least in a partial area in deviation from the desired position, so the line section undesirable another component of the chain, such as one that defines the chain interior, or come into contact with another line.
  • contact in particular rubbing, bumping or hitting, can also lead to considerable wear of the pipe.
  • the invention is therefore based on the object to provide a monitoring system for the operation of an energy chain with at least one guided in this line, through which the maintenance intervals can be optimized for checking the condition of the lines and / or incipient damage to a line without shutting down the energy chain can be detected early.
  • This object is achieved by a monitoring system according to claim 1 and by the provision of a strain relief device for such a monitoring system according to claim 16.
  • Advantageous embodiments result from the subclaims.
  • At least one measuring device for measuring forces is provided for solving the task, which are exercised when loading the energy chain on the Festge to be determined or Festge laid line and / or which during operation of the chain of the at least one line in the direction of and / or be transferred into the carrier part.
  • WO 2004/090375 Al a monitoring device for a power transmission chain is already known. By means of this, the wear of chain links and the joints between them can be monitored. However, the wear of the chain or the joint connections of chain sections correlated with each other in no way with the wear of in-line guided lines, as other materials and other conditions are mechanical Belastun given. This is especially true if lines of different types are routed in the chain.
  • the Kausver wear at a given Kettenv composite depends here on the one hand on the type of conduit, but possibly also on the arrangement of the line within the chain, for example. Whether the line is located near or away from the line connecting the chain link elements. Also, the sensitivity of the lines for mechanical Belas tungsspitzen, eg. With rapid acceleration of the chain, from depend on concrete line structure.
  • the monitoring device of WO 2004/090375 Al thus does not solve the invention underlying lowing task.
  • Such a change may, for example, result from (i) abrasion of a cable sheath varying its wall thickness, (ii) due to repeated mechanical stresses, individual layers of a conductor sheath detach from each other or their adhesion to each other changes, (iii) individual layers Due to aging, the line changes its properties, such as changing its strength or stiffness and / or (iv) the conduit changes its extension shape and plastically deforms with respect to its longitudinal extension, for example, spirally twisted ver in the longitudinal direction.
  • the aging of the line can thus be monitored on the basis of the forces exerted on or in the direction of the strain relief or the carrier part.
  • forces exerted on or in the direction of the strain relief or the carrier part For example, tensile forces and / or shear forces, but also, for example, torsional forces or other forces, can be carried out "Maintenance or replacement of the line can take place when the age-related change and thus also the exerted
  • the maintenance intervals of the lines themselves can be optimized, for example under consideration of the stresses or operating times of the respective chain.
  • the component should be understood that fixes the strain relief at the junction of this against stationary, for example, is firmly screwed to this, and forces derives from the strain relief in the connection point
  • the carrier part must not for the most part be changed in position relative to the environment or the chain and / or the lines.
  • the carrier part can be, for example, a retaining rail for the strain relief which is fixedly fixed to the ground, for example screwed in. If, for example, there is a final fastening part opposite side tabs, wherein the side flaps are fixedly fixed to the ground, and is a retaining rail for the strain relief only in the se tenlaschen plugged, the retaining rail is assigned to the strain relief.
  • the strain relief outside or within the energy chain for example, at a Endbefest Trentsteil the chain, be set, the Endbefest onlysteil can be fixed and force-receiving fixed to the junction, for example by screwing.
  • the strain relief on the Endbefestigsteil the chain set so the Endbefesti can supply part understood in the context of the invention as a support member.
  • the strain relief can also be arranged outside the chain, for example in the chain longitudinal direction behind the Endbefest onlys part of the chain.
  • a Switzerlandent load may also be arranged in a central region of the chain with respect to its longitudinal extent.
  • the term "energy guide chain” is understood to mean a cable guide device with relatively mutually displaceable chain links, in particular articulated interconnected Kettenab, wherein the individual chain links can be releasably or non-releasably fixed to each other beispielswei se, the energy chain with the multiple chain links
  • the chain provides a chain interior in which the at least one line or a multiplicity of lines is routed,
  • the chain interior is structurally limited to guide the lines within the chain, preferably for surrounding purposes.
  • the chain is preferably arranged with the formation of an upper run, Un trum and an arranged between these deflecting, wherein the connection points are provided at the end regions of the upper and lower run.
  • the chain can also be arranged spirally wound and at least one of the connection points to be moved about an axis of rotation. Other spatial arrangements of the chain and travel paths thereof are also included in the invention.
  • the measuring device for measuring shear and / or tensile forces and / or torsional forces and / or Biegekräf th, particularly preferably for the measurement of shear and / or Switzerlandkräf th, trained, which exercised in the operation of the energy supply chain on the festunde or fixed line be and / or which are transmitted during operation of the chain of the at least one line in the direction of and / or in the carrier part.
  • the measuring device may also be designed to measure other forces which act on the line and / or transmitted from this.
  • the at least one sensor of the measuring device can each couple directly to the line.
  • the coupling of the sensor to the line can in this case in power transmission direction of the line in the direction of the support member in particular before the strain relief on the line couple, possibly also behind the strain relief.
  • the at least one sensor of the measuring device does not directly connect to the line, which may also apply to all sensors of the measuring device.
  • the term "couple" with respect to the sensor is generally understood as a measuring pickup coupling for detecting the measured variable.
  • the term “sensor” also encompasses the arrangement of a plurality of sensors, unless otherwise stated in the context.
  • the measuring device with respect to the direction of a power flow of the at least one gent gentetermination to be determined or specified line in the carrier part force measuring effectively arranged between the line and the support member.
  • the measuring device can in this case measure effectively coupled to a component, which is directly in the power flow of the power transmission from the line, in particular fixed to the strain relief line area or line end, on the strain relief in the direction of the support member or in the support member.
  • compo le which are not directly in said power flow, but whose position or state, such as mechanical stress or torsion state, by the said power flow changes (or by its changes).
  • one sensor of the measuring device can be attached to the said construction part or coupled to it by force measurement Sensor for measurement is activated or can be activated for this purpose.
  • the measuring device force measuring effectively directly to the line itself, especially in the power transmission direction before the strain relief of this line, so that forces acting on the line can be measured directly ge.
  • the measuring device does not directly connect to the line, which has the advantage that, when replacing the line, the measuring device is not decoupled from the line to be replaced and must be coupled to the new line.
  • the force measurement by the measuring device the force acting on the respective component when moving the chain or from the line in the direction of the support part transmis gene force is measured directly or can be measured, or a physical size, which with correlated to said force.
  • the force can be measured, for example, by a slight change in position of the respective component due to the forces transmitted by the Lei device in the direction of the support member, but for example on the basis of voltages which will carry on the component through the forces exerted by the line, elastic deformations of the component as Verbie supply or torsion thereof or the like.
  • the forces exerted by the line in the direction of the carrier part can also be measured by a slight change in position of a component lying in the direction of force flow, which may also be determined optically or by other measuring methods, for example by acceleration sensors or the like.
  • the measuring device is designed as a force measuring device, that is, for example, in the form of a load cell, strain gauge, load cell, piezoelectric element, capacitive sensor, inductive sensor or the like, or this as measuring-active element.
  • the measuring devices comprises at least one or more load cells for detecting the respective measured variable.
  • the force measurement can be done as a direct or indi rect force measurement. For example, physical quantities resulting from the transmission of force, such as vibration or vibration of the corresponding one in the force flow, can also be generated. direction lying component are measured.
  • the measuring device When coupling the measuring device to the said, between the line and the support member lying in the direction of force flow between the measuring device can generally when needed to couple to a reference part with anchor point to measure the transmitted from the line on the component forces.
  • the reference point may be a stationary anchor point located outside the chain.
  • the Kraftauf participants of the measuring device can generally on the one hand to the respective component to which conduction forces are transmitted, and on the other hand to couple to the anchor point to measure the force exerted on the component conduction forces.
  • the measuring device is coupled to the strain relief force-measuring in order to measure the force exerted on a passage of the chain from the line to the strain relief forces.
  • the measuring device for example, not to decouple from the Lei device and is to be coupled to the new line.
  • the forces exerted at a V pertain the chain of the conditions conditions are largely or virtually completely absorbed by the strain relief of the respective line, so that the transmitted forces are comparatively accurate and thus measurable changes in power transmission due to wear of the lines or these causing events such as a stop of the line on a chain link, for example in the region of the inner radius of the chain, in particular in the deflection of the same.
  • the measuring device can also be coupled to different areas of the strain relief device in a force-measuring manner, for example in order to measure relative force changes between these areas.
  • the measuring device can also have several sensors, such as force transducers which couple force-measuring to strain-relieved brackets provided for different lines in order to measure the forces exerted by the line on the strain relief during the chain movement If several lines are provided which are mounted on a strain relief device for strain relief, then a single line or one can be used smaller subgroup of the larger total number of lines specified at the be identified which wear due to changing de forces exert on the strain relief.
  • the measuring device may have at least one or more sensors, which couple in each case force-measuring at least or to exactly one line holding means of the strain relief.
  • the conductor holding means is in this case the means of strain relief, which cooperates directly zugentlastend with the line.
  • the strain relief for example, a
  • the line holding means can be designed as Klemmmit tel as jaws.
  • the measuring device By coupling the measuring device to the line holding means, the forces exerted by the line on the strain relief forces can be measured very accurately, as they are transmitted from the line directly to the line holding means.
  • the coupling of the measuring device or the sensor to the line holding means can be maintained, which substantially facilitates the maintenance of the chain and / or a line exchange.
  • the Switzerlandent utilization device on a support region, by means of which the at least one conductor holding means is attached to the device Anlagenentlastungseinrich, wherein the measuring device couples with the support region of the strain relief force-measuring.
  • a Stützbe rich for example, be the strap of a strap clamp on which are set zugentlastend several lines.
  • a strain relief of a chain often includes several such support areas, wherein at a support area a smaller sub-group of the total number of run in the chain lines is relieved of strain.
  • Such a support region may for example also be a strain relief block of a strain relief, which comprises a plurality of such line holding means for a plurality of lines.
  • Such a support region may for example also be a holding block of a strain relief, which connects a plurality of strain relief blocks with each other.
  • Lastungs are preferably removable det as separate components, so that, for example, by exchanging the Bergshaltemit tel with different cross sections lines under different diameters of the strain relief can be fixed. If, for example, when retrofitting a chain on lines with other outer diameter or other line media to exchange the Lei tion holding means, so the support areas may optionally remain at the strain relief and / or the sensors of the measuring device must not be decoupled from the support area. A conversion of the chain is thus much easier. Nevertheless, the support area is arranged with respect to the power transmission of the lines in the direction of the support member in the direction of force flow near the lines, so that the forces exerted by the lines and their changes over the operating life of the chain are comparatively accurately measurable.
  • the strain relief device comprises a base element with which the gent gent is held on the support member and fixed.
  • the measuring device is preferably coupled to the base element in a force-measuring manner.
  • a base element may, for example, be the foot of a strain relief, for example the foot of a strap clamp designed as a strain relief, with which said tension clamp is held force-absorbing on the support member, for example, a retaining rail thereof.
  • the base element can beispielswei se also be designed as a bar or block, which sets the gent gent to the support member, for example by Ver screw connection.
  • the base element is in this case usually arranged outside of the cable-guiding overall cross-section of the chain.
  • the support element and / or base element to which the sensor of the measuring device respectively according to the invention couples may be a sepa rate component of the strain relief or integrally formed on another element thereof.
  • Stauerbe rich and base area can be integrally formed with each other.
  • the individual embodiments can be realized with force-transmitting coupling of the measuring device to the individual elements or regions of the strain relief, such as line holding means and / or support region and / or base region, in combination with each other.
  • the measuring device has a plurality of sensors for measurement according to the invention, which are coupled to different components, for example to a plurality of parts of the strain relief, then these sensors can be mounted prepositioned on a sensor holding device.
  • the Sensorhaite beautiful can be positioned in the region of the chain, for example.
  • At the strain relief to couple the sensors by measurement to the desired components for Kraftmes solution.
  • the assembly cost of the sensors is so wesent Lich easier.
  • the measuring device has two or more sensors, such as force transducers, for example. which, with different areas of one and the same component to which conduction forces are transmitted, receive measurement value in order to measure relative force differences between the two named areas of the same component.
  • the construction part may also be a component group, wherein the individual components of this group are preferably fixed force-transmitting to each other, particularly preferably relative to each other lageunver changeable.
  • strain gauges or other transducers, in particular force transducers can be coupled to various areas of a component such as a support region and / or a base region of the strain relief device and / or the line itself.
  • the measuring device has a plurality of sensors such as force sensors, which couple reading different components, which arranged in the transmission direction of the line forces in the direction of the support member between the line or in the region of Switzerlandentlas device line end and the support member are, for example, at differenttechnischsend Schemeen, and / or various components of the strain relief and / or the carrier part.
  • this coupling of the multiple Sen sensors may refer to various components of the strain relief, which serve the strain relief of different lines, so example, different conduction and / or various support elements and / or various base elements for fixing various lines.
  • a strain relief device is preferably provided at both connection points of the energy guiding chain, which loads the at least one line to be determined with regard to tensile forces acting on it in the process of the energy transmission chain. It can be provided at one or both of the connection points measuring devices according to the invention.
  • the connection points measuring devices can be recorded separately by means of the measuring device arranged on the latter, if appropriate on both. Since the force is introduced into the chain and thus also into the lines at the movable connection point on the basis of their V flesh, different alternating stresses can act on the lines at both connection points. The line monitoring can thereby be made more efficient or more sensitive in certain applications.
  • the monitoring system preferably has an evaluation unit in order to store the measured values of the sensors detected by the measuring device and / or to evaluate them with regard to a possible or given wear of the lines.
  • the evaluation unit can be configured to determine, for example, deviations of the actual values of the determined measured variables or of variables derived therefrom from predetermined desired values taking into account predetermined tolerances.
  • the derived sizes can be derived from the measured values, for example on the basis of a given physical and / or mathematical dependency.
  • a measured force can be converted into a pressure taking into account a predetermined area.
  • the setpoints with tolerances may be set to ensure proper operation of the lines over a period of time, such as a timed maintenance interval.
  • the evaluation unit can be configured to determine, for example, temporal changes of the actual values or of variables derived therefrom over a period of time which can be within the maintenance interval, for example after each or after a given number of travel cycles of the chain. Changes in the operating state of the lines can be detected. In this way can be extrapolated to reaching the tolerance limit in time and estimated the remaining operating time of the line up to a required maintenance.
  • the evaluation unit is signal-transmitting connected to a signal device which transmits a monitoring signal or interference signal to a monitoring person.
  • a signal device which transmits a monitoring signal or interference signal to a monitoring person.
  • an interference signal can be emitted by means of the signal device, which indicates, for example, a maintenance requirement or stops the relative movement of the connection points relative to one another.
  • the evaluation unit can also store further operating parameters of the chain, which are preferably present in the same traversing cycle of the chain or at the same time as the detection of the forces acting on the line or transmitted from the line in the direction of the carrier part by the measuring device.
  • These operating parameters of the chain can be measured by other suitable measuring devices.
  • Such operating parameters may be, for example, the travel speed of the chain or the acceleration of the chain during the travel movement, in particular the maximum travel speed of the chain or the maximum acceleration of the chain in the travel cycle of the force measurement according to the invention. At maximum acceleration of the chain also maximum loads are exerted on the lines of the chain usually.
  • the different traversing cycles of the chain can always be the same, ie the same time-dependent profiles of the chain traversing speed and chain acceleration can be given, which is understood here as "uniform operation of the chain.” This can be the case if the consumer operates an automated For such cases, with always at least substantially identical recurring chain traverse cycles, it is usually sufficient to measure only the forces transmitted by the respective line in the direction of the carrier element by means of the measuring device according to the invention. It should be understood that, for the sake of completeness, the chain operating pair is also used here to determine the forces exerted by the respective line in the direction of the carrier element and their deviation from a nominal value or temporal changes of these line forces can be detected and displayed in the Auswer te planted and / or stored together with or in relation to the conduction forces of the respective gene Verfahrzyklus.
  • the chain is traversed with a predefined traversing cycle, that is to say with a defined traverse path of the at least one movable connection point, speeds of the chain movement defined by the traverse path and defined accelerations.
  • this traversing cycle (reference cycle)
  • the line forces are measured and stored by the evaluation unit as a reference value.
  • the reference cycle can also be a selected travel cycle.
  • the reference measurements can, for example, take place after a number of chain traversing cycles.
  • a reference measurement of the conduction forces can take place with predefined running of the chain, or any traversing cycle can be selected as the reference measurement.
  • the essential traversing parameters of the chain such as length and / or direction of travel, speeds of the chain travel during a travel cycle, in particular the maximum speed, chain acceleration or maximum chain acceleration during a travel cycle, etc., can be measured and stored in the evaluation unit , It is understood that these values can be determined for each travel cycle or only for part of the travel cycles, preferably at fixed intervals.
  • the measurement of the line forces of different Ver driving cycles can be compared with each other, in which the chain performs an at least substantially similar traversing movement, so for example, predetermined motion parameters
  • the chain differ only in a predetermined tolerance range, so for example, deviations of the maximum speed and / or maximum acceleration of the chain movement in the traversing cycle differ by less than 10% or less than 5% of the ent speaking parameters of the reference cycle.
  • a plurality of predetermined reference cycles can be traversed, which are defined in relation to the parameters of the chain chain, but in significant operating parameters of the chain such as maximum Kettenge speed and / or maximum chain acceleration, etc. signi fikant differ , As a result, a plurality of reference cycles can be defined, which can be distributed over the bandwidth of different operating modes of the chain.
  • a further variant of the monitoring system consists in that the evaluation unit is configured in such a way as to compare different traverse cycles of the chain by calculation with the reference cycle. For example, it is to be expected that when the maximum acceleration of the chain is doubled, the cable forces will increase, for example by a factor of four. hen.
  • the operating parameters of the chain determined with a certain movement of the chain can hereby be converted to the reference values by a predetermined algorithm.
  • the algorithm can be based on assumptions of how the conduction forces change with changes in an operating parameter, or these dependencies can be determined experimentally, in which the chain is operated on different operating parameters, the line forces are measured and a mathematical compensation calculation is performed to determine the physical dependencies of the changing operating parameters to determine changing line forces.
  • a Switzerlandentlastungsein direction for one or more ge in a power transmission chain leading lines comprising a line holding means for zugent constricting fixing the at least one line and with at least one sensor such as force transducer, which rich on a Sectionbe or a component of the strain relief device is coupled or can be coupled and which part of a measuring device for measuring the line forces, ie the forces exerted on the fixed or fixed line during operation of the energy supply chain and / or which during operation of the chain of the at least one line in the direction the carrier part will be transferred.
  • the measuring device or at least the at least one sensor is also part of the thus further developed strain relief device.
  • the invention further developed strain relief device is configured and provided to be set in a monitoring system according to the invention.
  • Said force transducer or sensor can be coupled to the cable management means of the strain relief device or configured for coupling to the coupling.
  • the load cell or sensor can be coupled to the coupling device to a support area and / or base area of the gent gents adopted to be configured or for coupling to this. It is understood that the various Vari can also be provided in combination with each other.
  • the force transducer or sensor can be coupled to a region of the strain relief device, which between the Line holding means and the attachment portion of Switzerlandentlas processing device for fixing the same is arranged on the support member is. It is understood that the "coupling" of the force sensor or sensor on the strain relief device or the respectively described area thereof represents a measured-receiving coupling with respect to the line forces.
  • Also included in the invention is a method for monitoring the operation of an energy guiding chain, in particular for monitoring at least one line guided in an energy guiding chain during operation of the chain, using the monitoring system according to the invention.
  • the monitoring system comprises an evaluation device and / or a signal device.
  • FIG. 1 shows a schematic representation of an energy supply chain with monitoring device
  • FIG. 2 shows a detail view according to FIG. 1;
  • FIG. 3 shows a schematic representation of a strain relief of a first embodiment with sensors of the measuring device coupled thereto;
  • FIG. 4 shows a schematic representation of a strain relief of a second embodiment with sensors of the measuring device coupled thereto;
  • Fig. 5 is a schematic representation of another embodiment form of a monitoring device according to the invention.
  • Figure 1 shows a schematic representation of a Matterwachungssys system 1 for the operation of an energy guiding chain 10, wherein the chain at least one or more lines 12 such as in the form of cables, hoses or the like between two relative to each other movable connection points 13a, 13b leads.
  • lines 12 such as in the form of cables, hoses or the like between two relative to each other movable connection points 13a, 13b leads.
  • the line transmits media and / or energy from one connection point to the other, or from a supply device to a consumer.
  • the lines are in this case arranged in a chain inner space 10a.
  • the energy guiding chain comprises a plurality of hingedly connected chain links 11, which change their position relative to each other during the movement of movement of the chain.
  • the chain can also be formed in another form of a line guide device with mutually positionally variable sections, such as, for example, as a hose, joint tube or the like.
  • One of the connection points, here the connection point 13a is formed as a fixed connection point or fixed point, the connection point 13b can represent a driver of a moving machine part or derglei surfaces, wherein both connection points 13a, 13b may be movable locations.
  • the chain can be arranged to form a lower strand 10b, an upper strand 10c and a deflection region 10d connecting them, wherein the upper strand and / or upper strand can be rectilinear but also arcuate with respect to their extension direction.
  • the chain can also be arranged spatially differently and / or moved.
  • the movable connection point 13b is traversable between themaschined points VI and V2, which defi ned, for example by the movement of the machine part coupled to this.
  • the Maschinenddiv VI and V2 thus define the maxima len travel path of the chain in their operation, for example over the period of a maintenance interval.
  • the movement of the movable junction point 13b from the first traversing point VI to the second traversing point V2 and back to the first procedural end point VI defines a traversing cycle of the chain.
  • the procedural end points VI, V2 may be defined longitudinally by the position of the connection points or another predefined point of the chain in chains, for example by the position of the end fastening part, which fixes the chain at the connection point, the position of the strain relief 20 on said Chain end or the like.
  • Themaschinedness VI and / or V2 can, where appropriate, at each traversing cycle of the chain another spatial position in the chain receiving space such as. occupy the machine hall.
  • the force exerted on the respective line forces are on the line end portions 12 b, 12 c, with which the The strain relief 20 has a line holding means 21, which cooperates zugentlastend directly with the line 12, for example, on the Werentlas processing device 20 zugentlastend fixed to the Werent load device 20 and transmitted in the form of a Klemmver connection load 20 is determined here on the carrier part 30 in order to be able to dissipate the forces exerted on the strain relief during chain travel by the line into the carrier part.
  • the derivative of the forces of the specified line end area 12 b, 12 c on the strain relief 20 and further in the direction of or in the support member 30 is here as the direction of the force flow KF from the line in the direction of the support member 30 was ver.
  • the lines 12 Due to the forces exerted on the lines 12 during the movement of the chain 10, the lines 12 are subjected to a connection. Wear, which may require an exchange of the line 12 to ensure safe operation of the supplied via the lines 12 Ma machine. Such wear can occur when the lines 12 change their desired position during continuous operation of the chain, up to a stop or rubbing the respec gene line to another component, such as another line, the inner wall of a chain link or arranged in this device such as a chain link interior layout or the like. Also, due to the constant alternating loads of the line at the Kettenv composite wear of the Lei device 12 can occur, which can manifest themselves already in a certain permanent strain or compression or other permanent Defor mation or change in cross section of the line.
  • the state or a wear-related impairment of the line 12 can be monitored on the basis of the experience of the chain, in particular regardless of any wear of parts of the energy supply chain such as wear of the joints between the individual chain links.
  • a measuring device 50 is provided which is arranged and configured to measure forces acting on the pipe 12 during operation of the chain 10 and / or from the pipe 12 be transmitted in the direction of the support member 30.
  • the measuring device 50 can couple to components which are transferred in the direction of the force flow from the end region 12b of the line via the strain relief 20 in the direction of the carrier part 30 or into the carrier part 30 which holds and fixes the strain relief 20.
  • the forces transmitted during operation of the chain from the line 12 in the direction of the carrier part 30 can be detected by means of the measuring device 50.
  • Due to changing forces, which are transmitted from the line end portion 12b on the Werentlas device 20 and further in the direction of the support member 30 or in the support member 30 inside (hereinafter called “line forces") can be measured ge undesirable loads on the line.
  • these forces can be reinforced
  • Represent power transmission of the line on the strain relief for example, when the line strikes when moving the chain to another component.
  • a reduction of the conduction forces can occur during operation of the chain, for example when the line due to the alternating stresses a weakening such as a permanent strain or fatigue experiences, which can lead to a lower bending stiffness of the line.
  • a weakening such as a permanent strain or fatigue experiences
  • connection point 13 a the connection point 13 a
  • connection point 13b the connection point 13b or in particular both connection points 13a, 13b can be designed according to the invention.
  • the measuring device 50 is to be formed according to the embodiment as a force measuring device in the strict sense, so that as a physical size forces are measured by means of at least one or more rer sensors 51 which from the line 12 in the direction of force flow KF toward or on the support member 30th to be transmitted.
  • the measuring device 50 may be formed in a modification by means of suitable sensors 51 for measuring physi cal sizes, which result from the Kraftaus exercise the line 12 on the strain relief 20 and optionally further towards and / or in the support member 30, for example Changes in position of a region of the strain relief 20, which are, for example, optically detectable, or derglei chen.
  • the type of force measurement of the conduction forces is not limited to certain physical measurement principles, it can be used in example power cans, strain gauges or the like. As particularly preferred, however, load cells, Deh voltage gauges and / or piezo elements are used taking into account the amount of forces to be measured and their temporal changes and the accuracy of measurement.
  • the term "sensor” may each be a single sensor or a plurality of sensors.
  • the measuring device 50 is in the region of the power transmission of a force flow KF of the at least one of the strain relief 20th to be determined or specified line 12 coupled in a force-measuring manner in the direction of the support member 30.
  • the Sen sor 51 of the measuring device such as a force transducer, in the field of power transmission of said force flow KF is arranged to detect the forces acting here.
  • the sensor 51 of the measuring device may in particular lie directly in the power flow or possibly be pelt on a component such as the strain relief 20a force measuring angekop pelt, which is not directly in the power flow KF but is subjected to force by the said power flow KF and here, for example, its location the forces transmitted by means of Kraftflus ses changes or strains or stresses undergoes due to the power flow or its changes in particular in the chain experience experiences, which by means of the sensor 51 of the measuring device 50 can be detected.
  • the measuring device 50 is coupled with the strain relief device 20 in a force-measuring manner or configured for coupling to it.
  • the sensor 51 of the measuring device 50 may be coupled to the strain relief 20 in a force-measuring manner or be configured for coupling to it.
  • the sensor 51 is coupled to a base element 25 of the strain relief 20 in a force-measuring manner.
  • the base element 25 is integrally formed on the strain relief 20 or may be formed as a separate component of the strain relief 20.
  • the base member 25 represent the foot of a strap used as Werentlas strap, with which the Glasent load 20 fixed to a mounting portion 31 of the support member 30, which may be formed as a support rail, for example, to the management forces on the strain relief 20 gerteil in the Trä 30 can dissipate.
  • the measuring device 50 with at least one line holding means 21 of the strain relief 20 kraftmes send coupled or configured for coupling to this (see Figures 2 to 4), wherein the line holding means 21 immedi applicable zugkraftaufianad with the respective line 12 cooperates.
  • the line holding means 21 may in this case be designed, for example, as a clamping jaw, which clampingly locks on the line. is placed.
  • the strain relief 20 has a support region 22 (see FIGS. 2 to 4) which supports or supports the conduit support 21 and connects it directly or optionally via further components of the strain relief 20 to the base element 25 of the strain relief and from the conduit end area on the line holding means transmitted forces to the carrier part derived.
  • the support region can be seen easily a support element which is formed over the line holding means as separa tes component.
  • the support region 22 is not restricted to specific spatial orientations to the conduction-holding means 21 and the base element 25.
  • the support area can thus be arranged, for example, laterally and / or above and / or below the line holding means with respect to the vertical and / or horizontal direction of a Cartesian space coordinate system of the room in which the monitoring system with the energy guiding chain is arranged.
  • the vertical direction corresponds to the direction of gravity.
  • the support portion 22 is formed here, for example, as a leg of a strap clamp, wherein the Bügelschel le a plurality of superposed line holding means 21 for supporting a plurality of lines may have one above the other.
  • the sensor 51 of the measuring device may in this case be arranged on the support part 30 facing region 22a of the support region or else on the side facing away from the carrier 12 in relation to the support member 30 22b of the support portion 22 or at both regions 22a, 22b.
  • denominated evaluation device 60 are also derived from the surfaces of the preparation chen 22a, 22b derived variables as in example difference values determinable.
  • the sensor 51 e.g. as a load cell, coupled on the one hand to the component to be measured to the acting force, on the other hand at a fixed anchor point 51a as a reference point. This principle can apply independently of the embodiment.
  • the strain relief 20 can also be designed for tension-relieving attachment of a multiplicity of lines 12.
  • the strain relief can be several lines holding means 21 which respectively support individual lines 12 or sub-groups 12U of lines 12 with respect to the larger total number of lines fixed to the strain relief 20.
  • separate sensors 51 of the measuring device 50 can be coupled to transmit a plurality of separate conducting means 21 in order to measure forces acting on the various line holding means 21 or physical quantities derived from these forces.
  • the corresponding measured values transmitted by the measuring device 50 to the evaluation device 60 can then be displayed individually or processed in relation to one another, for example by subtraction or the like. This makes it possible, for example, to monitor individual lines or sub-groups of lines independently and inde pendent of other lines of strain relief.
  • the measuring device 50 may be coupled with the Garbe 31 of the carrier part 30 metrologically (Fig. 2), wherein the mounting portion 31, the strain relief 20 sets.
  • the sensor 51 may in particular be designed and configured to detect stresses generated in the holding region 31 on the basis of the applied line forces.
  • a strain relief 20 is exemplified, which defines a plurality of lines 12.
  • the strain relief 20 in this case comprises a plurality of line holding means or line holding elements 21, a plurality of supporting areas or supporting elements 22 and at least one or optionally a plurality of base elements 25.
  • the sensors 51 of the measuring device 50 can in each case be connected to a plurality of said elements or areas 21, 22, 25 measured value receiving coupled.
  • the measuring device 50 can have at least two sensors 51 of the generally two force measuring devices, which are coupled with different regions of one and the same construction in the force transmission direction from the line 12 in the direction of the carrier part 30 in a measuring-receiving manner. to measure relative differences in forces between the two areas mentioned above.
  • the calculation of the differences in forces can suc in the connected to the measuring device 50 evaluation unit 60 suc.
  • the sensors can be designed in particular as Dehnungsmessstrei fen, it can also be provided an other strain ermit telnde sensors.
  • the longitudinal extent of the strain gauges is preferably arranged in the direction of the force flow KF.
  • stresses as well as bending and / or torsional stresses on the respective component of the strain relief 20 and the strain relief 20 can be determined in total.
  • one of the strain gauges can be stretched and the other gashed.
  • the force acting on the strain relief 20 line forces can be measured here with very high sensitivity.
  • the verse with the at least two connected sensors 51 hene component may be a line holding means, support area or So ckel Scheme the strain relief or the mounting portion of the support element.
  • support region or base region of the strain relief can be formed as separate components, in particular also separately from the line holding means.
  • a plurality of sensors of the measuring device can be arranged on a common sensor holder with a predefined arrangement of the plurality of sensors relative to one another.
  • the positions of the sensors on the sensor holder can the Sollpo positions of the same in the measured value of the invention correspond to the executives mentioned above.
  • the plurality of sensors can be positioned at the same time in their desired position for measuring value, which facilitates the assembly or disassembly of the sensors.
  • the monitoring device 1 further comprises a Ausnceeinrich device 60 for the evaluation of the sensed by the sensors Messgeb measurements, which may be signal transmitting connected to a signaling device 70.
  • a Ausnceeinrich device 60 for the evaluation of the sensed by the sensors Messgeb measurements, which may be signal transmitting connected to a signaling device 70.
  • the signal device 70 sends a monitoring signal to an operator or stops the drive for moving the movable connection point.
  • the evaluation unit 60 is optionally configured to determine deviations of the actual values of the measured variables determined by the sensors 51 or of the variables derived therefrom from predetermined desired values taking into account predetermined tolerances.
  • the setpoints with tolerances are set to ensure proper operation of the lines over a certain period of time, such as a timed maintenance interval.
  • the evaluation unit 60 is optionally configured to determine temporal changes of the actual values or of variables derived therefrom over a period of time which can be within a normal maintenance interval, for example after every 10th or every 100th traversing cycles of the chain. Furthermore, the evaluation unit comprises a computer for temporally extrapolating the actual values measured at different times, for example by adapting a polynomial to the temporal sequence of actual values by means of known mathematical methods. The remaining operating time of the line up to a required maintenance can thus be estimated.
  • the evaluation unit 60 further stores further operating parameters of the chain, which are measured by other suitable measuring devices, preferably in the same traversing cycle of the chain or at the same time as the measurement of the actual values by the sensors 51. These operating parameters are, according to the,sbei game, the traversing speed of the chain and / or the acceleration of the chain during the movement of the chain. These further operating parameters of the chain are displayed and stored together with the measured values of the sensors 51 with respect to the line forces.
  • the evaluation unit 60 transmits the signal transmission device 70 a signal for triggering the signal.
  • one or more reference cycles are passed through and the line forces exerted by the lines are determined by means of the sensors 51 and the operating parameters of the chain and stored as reference values.
  • the reference cycle with a predefined chain run is defined here by the two travel end points VI and V2 of the chain as well as the travel path and chain speed and / or chain acceleration during the travel path.
  • a reference movement of the chain is again carried out and the stated values relating to the line forces and chain traversing parameters are determined again.
  • the measured values determined by means of the sensors 51 in the various reference cycles of the chain can then be compared with one another by the evaluation unit and in the case of deviations outside the tolerance range, a signal can be transmitted to the signal device 70.
  • a reference measurement of the conduction forces at predefined V foster the chain Runaway leads or any traversing cycle be selected as a reference measurement out.
  • the driving parameters of the chain such as length and / or direction of Verfahrwe ges, speeds of chain experience during a travel cycle and chain acceleration measured during a travel cycle and stored in the evaluation unit. This may refer to each individual travel cycle or multiple cycles in a maintenance interval, for example, every 10th cycle.
  • the measurements of the line forces of different travel cycles are compared with each other, in which the chain each performs an at least substantially similar traversing movement. It is also possible to run through a plurality of predetermined reference cycles, which in each case differ significantly in relation to the movement parameters of the chain and can cover the bandwidth of different modes of operation of the chain.
  • a further variant of the monitoring system 1 consists in that the evaluation unit 60 is configured in such a way that it can be computationally compared with the reference cycle under different travel cycles of the chain.
  • the operating parameters of the chain determined with a certain movement of the chain can hereby be converted to the reference values by a predetermined algorithm.
  • the algorithm may be based on assumptions or experiments as to how the conduction forces change as the operating parameter of the chain changes. If the actual characteristic value characteristic for the line forces deviates from the expected value of the line forces for the chain forces, which results from the reference value as the expected value, then there is an impermissible deviation which suggests a line closure.
  • the Auswer teech 60 then outputs a signal to the Signalübertragungsein direction 70 for outputting a noise signal, including signal for switching off the drive of the movable connection point.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Supports For Pipes And Cables (AREA)
  • Electric Cable Arrangement Between Relatively Moving Parts (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Pipeline Systems (AREA)

Abstract

L'invention concerne un système de surveillance (1) d'une chaîne porte-câbles (10) qui guide au moins un câble (12) entre deux points de raccordement (13a, 13b) mobiles l'un par rapport à l'autre, et qui présente en tant que parties de guidage du ou des câbles (12) des segments de chaîne changeant de position les uns par rapport aux autres lors d'un mouvement relatif des points de raccordement (13a, 13b). Le système de surveillance (1) présente par ailleurs au moins un dispositif de décharge de traction (20) muni d'un moyen de retenue (21) de câble se raccordant au câble (12), un élément de support (30) en au moins un des points de raccordement (13a, 13b), fixé à demeure au dispositif de décharge de traction (20) et au moyen duquel le ou les câbles (12) sont fixés côté extrémité de manière à détendre la traction, et au moins un dispositif de mesure (50) permettant de surveiller le fonctionnement de la chaîne porte-câbles (10). Le dispositif de mesure (50) est agencé et configuré pour mesurer des forces qui sont exercées sur le câble (12) fixé lorsque la chaîne porte-câbles (10) fonctionne et/ou qui sont transmises par le ou les câbles (12) dans la direction de l'élément de support (30).
EP19718595.2A 2018-04-20 2019-04-05 Système de surveillance du fonctionnement d'une chaîne porte-câbles Pending EP3782250A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202018102217.2U DE202018102217U1 (de) 2018-04-20 2018-04-20 Überwachungssytem für den Betrieb einer Energieführungskette
PCT/EP2019/058662 WO2019201626A1 (fr) 2018-04-20 2019-04-05 Système de surveillance du fonctionnement d'une chaîne porte-câbles

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Publication Number Publication Date
EP3782250A1 true EP3782250A1 (fr) 2021-02-24

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EP (1) EP3782250A1 (fr)
JP (1) JP7386806B2 (fr)
KR (1) KR20210005088A (fr)
CN (1) CN112703647B (fr)
AU (1) AU2019254266A1 (fr)
BR (1) BR112020021019A2 (fr)
CA (1) CA3097052A1 (fr)
DE (1) DE202018102217U1 (fr)
SG (1) SG11202010392UA (fr)
TW (1) TWI826437B (fr)
WO (1) WO2019201626A1 (fr)

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KR102613636B1 (ko) 2021-08-11 2023-12-13 이민우 케이블 수명 예측이 가능한 케이블 가이드 체인
CN117191612B (zh) * 2023-11-06 2024-02-02 四川耀强科技有限公司 一种手机数据线用性能检测装置及其检测方法

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Publication number Priority date Publication date Assignee Title
DE4413303C1 (de) * 1994-04-18 1995-05-24 Kabelschlepp Gmbh Traverse für eine Energieführungskette
DE20305479U1 (de) * 2003-04-03 2003-06-12 Igus Gmbh Zugentlastungselement für Energieführungsketten und Energieführungskette mit Zugentlastungselement
WO2004090375A1 (fr) 2003-04-04 2004-10-21 Igus Gmbh Systeme de surveillance pour le fonctionnement d'au moins une chaine de guidage d'elements de transport d'energie
JP4104613B2 (ja) * 2005-04-22 2008-06-18 株式会社椿本チエイン ケーブル類保護案内装置のケーブル類クランプ部材
DE102007005859A1 (de) * 2007-02-06 2008-08-07 Siemens Ag Vorrichtung zum Erkennen eines mechanischen Defekts in einem Draht einer Oberleitung
DE102011011868A1 (de) * 2011-02-21 2012-08-23 Icotek Project Gmbh & Co. Kg Halterung zur Verwendung bei einer Energieführungskette
DE202012003907U1 (de) * 2012-04-19 2012-05-15 Igus Gmbh Überwachungssystem für Zug- und Druckkräfte in einer Energieführungskette und entsprechender Kraftaufnehmer
CA2832525C (fr) * 2013-11-05 2017-02-07 Honda Motor Co., Ltd. Systeme et procede de surveillance de chemin de cable
DE202014100540U1 (de) * 2014-02-07 2014-03-20 Igus Gmbh Energieführungskette und Überwachungssystem zum Schutz gegen Leitungsabriss
DE202014008413U1 (de) * 2014-10-21 2014-10-29 Schmidberger Gmbh Zugentlastungselement für Energieführungsketten
DE202016107316U1 (de) * 2016-12-23 2017-03-27 Igus Gmbh Überwachungssystem für den Betrieb einer Energieführungskette
DE202016107317U1 (de) * 2016-12-23 2017-03-27 Igus Gmbh Systeme zur Überwachung des Betriebs einer Energieführungskette
DE202017102147U1 (de) * 2017-04-10 2017-05-05 Igus Gmbh Leitungsdurchführung, insbesondere Zugentlastung für eine Energieführungskette
DE202017102410U1 (de) * 2017-04-24 2017-07-31 Igus Gmbh System zur Lage- und/oder Leitungsüberwachung in einer Energieführungskette

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CN112703647A (zh) 2021-04-23
JP2021522764A (ja) 2021-08-30
CN112703647B (zh) 2022-06-17
US20210164872A1 (en) 2021-06-03
AU2019254266A1 (en) 2020-11-26
KR20210005088A (ko) 2021-01-13
TWI826437B (zh) 2023-12-21
TW201944044A (zh) 2019-11-16
CA3097052A1 (fr) 2019-10-24
SG11202010392UA (en) 2020-11-27
BR112020021019A2 (pt) 2021-01-19
DE202018102217U1 (de) 2019-07-23
JP7386806B2 (ja) 2023-11-27
WO2019201626A1 (fr) 2019-10-24

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