EP3500763A1 - Schraubverbindung mit einer überwachungseinrichtung - Google Patents
Schraubverbindung mit einer überwachungseinrichtungInfo
- Publication number
- EP3500763A1 EP3500763A1 EP17745339.6A EP17745339A EP3500763A1 EP 3500763 A1 EP3500763 A1 EP 3500763A1 EP 17745339 A EP17745339 A EP 17745339A EP 3500763 A1 EP3500763 A1 EP 3500763A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- connection
- sensor
- encoder
- screw connection
- 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.)
- Withdrawn
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 3
- 230000008878 coupling Effects 0.000 claims description 17
- 238000010168 coupling process Methods 0.000 claims description 17
- 238000005859 coupling reaction Methods 0.000 claims description 17
- 238000011156 evaluation Methods 0.000 claims description 10
- 230000005672 electromagnetic field Effects 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000013461 design Methods 0.000 description 15
- 230000000295 complement effect Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
- F16B41/005—Measures against unauthorised operation of bolts, nuts or pins
Definitions
- the invention relates to a screw connection, formed from a screw element and a counter element with a monitoring device, in detail with the features of the preamble of claim 1.
- the invention further relates to a use of such a screw connection in a rail-bound vehicle.
- the connection of coupling devices on a rail vehicle is realized inter alia via fastening devices in the form of screw.
- the coupling device itself consists of a plurality of individual components, which are also connected to each other by means of screw. Additional components are often also connected via screw with the coupling device. Screw connections are also used in the direct connection of components or the clamping of components against each other use. For example, reference is made to securing a pull rod relative to another component via a securing element in the form of a lock nut.
- the screw for this purpose include a threaded element, which is referred to as a screw member and a counter-element, which is designed for example as a mother or is formed by a component.
- the screw element can be designed as a screw, with respect to the nature and design of this no restrictions exist. Conceivable, however, is the design as a bolt with thread-bearing portion.
- Such screw are subjected to very high stresses, especially since these serve in the power flow of the transmission of tensile and compressive forces and other influences, such as vibrations are exposed. The monitoring of such screw is usually done by optical inspections.
- the problem is the monitoring of screw connections, which are either not freely accessible, as they are installed by other components such that they are not visible. Also problematic is the monitoring of screw that, although freely accessible, but should be continuously monitored due to the high safety relevance, which is not possible with the manual optical detection. Also, it is difficult with a variety of screw due to their arrangement and design difficult to automate the monitoring, since the required arrangement of sensors is not readily possible or for this, the components in the environment must be specified to receive a sensor. Another problem is the possibility of retrofitting in existing systems.
- the invention is therefore based on the object to provide a screw connection with a monitoring device for continuous monitoring during operation of a system with such a screw connection. It should be possible to detect early changes to the screw and signal to initiate preventive measures.
- a screw is to be further developed for use in and for connection of coupling systems of rail vehicles such that optimal monitoring of this is given even with difficult accessibility to the individual screw and the monitoring device can be retrofitted with little effort.
- a screw connection formed by a thread-carrying element extending along a longitudinal axis, in particular a screw element and a counter element and having a monitoring device for monitoring the integrity of the screw connection, comprising a detection device, arranged twisting and / or shifting one of the elements of the screw against each other or opposite
- the detection device has at least one on one of the elements of the screw - screw or counter element - arranged or integrated transmitter and a sensor for detecting the encoder, and the sensor on or in the arrangement region of the encoder attached to an element of the screw cover is attached, wherein the cover mit casserolefest with one of the elements of the screw - screw element or counter element - is connected.
- a thread-carrying element in particular a screw element, is understood to mean an element which has a cylindrical or hollow-cylindrical region extending along a longitudinal axis, which is formed with a thread at least over a partial region of its extension in the longitudinal direction.
- the screw element is designed as a screw formed from screw head and shank or bolt or threaded rod which carries at least in a portion of its extension in the longitudinal direction of a thread executed.
- the function of the screw element can also be taken over by functional components, for example a pull rod or a tie rod.
- a counter element is understood to be a component which forms the second element of the screw pairing realized with the screw connection.
- This may be a securing element in the form of a nut or another component, which has a thread complementary to the screw element and designed to cooperate with this thread.
- Screw element and counter element each carry a threaded area.
- each one of the elements - screw element or counter element - an external thread and the other - counter element or screw element - the complementary internal thread on.
- Carrying in the sense of the invention means that an attachment, fixation or connection is made such that the connection is free from the possibility of relative movement of the two components to be connected, in particular between the cover and one of the elements of the screw connection.
- the solution according to the invention offers the advantage that the provision of a cover makes it possible to position sensors in a simply selectable way and to select them with little effort.
- the arrangement of the required sensors can be carried out regardless of the configuration of the environment of the screw.
- the arrangement of a sensor in or on one of the screw associated and connected to an element of this cover offers the advantage of creating a monitoring device, which is easy to retrofit in existing systems, units or assemblies and also a continuous monitoring during operation of the respective component allowed. Since the cover usually does not have to be particularly space-consuming, this can also be used for screw, which are not freely accessible.
- covers are preferably designed so as to observe the arrangement region of the encoder in the circumferential direction about the longitudinal axis of the screw element and to enclose in the longitudinal direction at least over the extension region of the arrangement region of the transmitter while forming a distance to the encoder.
- This version protects the encoder from environmental influences.
- this also has the advantage of shielding the screw connection and the most essential components of the monitoring device - encoder and sensor - against environmental influences. Therefore, covers are preferably selected which provide encapsulation of the arrangement area for the encoder and the sensor. This is particularly advantageous in applications such as coupling devices of rail vehicles, since these are often exposed to weather conditions, not optimal environmental influences such as dust, etc.
- the cover of a one-sided open and at least one interior for receiving the arrangement region of the encoder on the screw member or the counter element and the sensor forming cap-like member is formed, which has a connection region for connection to the screw member or the counter element at the opening end portion ,
- the tamper-proof connection between the cover and an element of the screw connection - screw element or counter element is preferably formed as a compound or combination of compounds selected from the following group of compounds:
- the tamper-resistant connection between the cover and an element of the screw - screw element or counter element - designed as a detachable connection. This allows one if necessary Access to the screw free from destruction of the cover or the connection and the reuse of the cover and the sensor arranged on or in this.
- the attachment of the individual encoder on one of the elements of the screw - screw element or counter element - and / or the sensor is on or in the cover solvable.
- the advantage here is also in the interchangeability, especially if it is to be switched to monitoring systems for other physical principle or defect. Inseparable compounds are chosen in particular if it does not depend on the reusability in the exchange.
- the encoder is designed as an optical encoder, in particular as attached to an element of the screw - screw element or counter element - mounted mark, a color wheel or a color scale and the sensor of an optical sensor.
- the sensor for contactless detection of the transmitter is set up on the basis of the field, wherein the transmitter and the sensor are preferably designed according to one of the following embodiments:
- the transmitter comprises a permanent magnet for providing a magnetic field and the sensor comprises a magnetic field sensor;
- the sensor comprises a coil for providing an electromagnetic field and the encoder comprises an element for influencing the electromagnetic field;
- the sensor comprises a voltage source and the encoder comprises a dielectric element.
- a magnetic determination is performed.
- the encoder may comprise a permanent magnet for providing a magnetic field and the sensor may comprise a magnetic field sensor.
- the magnetic field sensor can be made active, for example as a Hall sensor, or passively, for example as a reed contact.
- the magnetic field can be easily and reliably detected as long as the sensor is attached to the encoder.
- a magnetic guide element may be provided to shape the magnetic field in the region of the sensor, so that it is amplified in the region of the sensor, as long as no dissolution has taken place.
- the senor may comprise a coil for providing an electromagnetic field and the encoder an element for influencing the electromagnetic field.
- the encoder may comprise a soft magnetic element to form the electromagnetic field, so that the field strength in the region of the sensor or a current consumption of the coil may be influenced in the presence of the encoder.
- the coil is driven with an alternating current, wherein the voltage source comprises the sensor or can be realized externally.
- the electromagnetic field is preferably determined on the basis of a current flowing through the coil or a voltage applied to the coil. In further embodiments, however, a dedicated sensor for determining the electromagnetic field may also be provided.
- a capacitive determination is carried out, the sensor preferably being a voltage source and the encoder being a dielectric element includes. There is an electric field between the sensor and the transmitter whose field strength can be influenced and in particular amplified by the dielectric element. If the transmitter is disconnected from the sensor, in particular a change in the capacitance between terminals of the voltage source can take place, which can be determined by means of a suitable evaluation device.
- the evaluation device can be comprised by the sensor or provided externally.
- a further sensor in the form of a magnetic field sensor for absolute position determination of the elements of the screw connection is provided to one another.
- the counter-element is formed by a nut and the transmitter is preferably arranged on the shaft end, in particular the end face of the shank of the screw element, wherein the cover is connected with the mother taker-proof.
- a second variant is characterized in that the screw element is formed by a screw and the counter element by a female thread having a base body, wherein the encoder is arranged on the screw head, in particular the front side or the outer periphery and the cover is connected to the base body.
- a third possible variant is characterized in that the encoder is attached to a counter element in the form of a nut or a base body and the cover on the screw member. All versions have the advantage of being able to design the cover with an integrated or attached sensor as a complete unit. This can be provided for example as a preassembled unit.
- the monitoring device comprises at least one further sensor for monitoring the environment of the screw connection. Such sensors can also be easily obtained from the Cover taken or arranged on this.
- the cover may additionally have prepared receiving or arrangement regions for further sensors.
- the cover is designed so as to have a plurality of prepared arrangement areas for the standardized embodiment of covers. These can then be occupied by the sensors depending on the arrangement of the encoder and assignment to this in mounted position.
- the power supply of the individual sensor can be done locally by a battery or a rechargeable battery and / or by the electrical supply of the train when used in a traction coupling or by the electrical supply of a system.
- the energy supply can also be done by energy harvesting.
- the sensor can be set up in particular for connection to an electrical evaluation device in that the sensor provides a signal which indicates a deviation from the nominal state of the screw connection (change in position between screw element and counter element in the longitudinal direction and / or circumferential direction).
- the evaluation device may be part of a controller or else be integrated into a higher-level control and / or regulating system for the module in which the monitoring of the screw connection takes place.
- a prescribed screw with monitoring device with arranged in or on a cover sensor according to one of claims in a coupling device, in particular central buffer coupling of a rail vehicle for connecting and / or clamping of components of the coupling device with each other, the connection of the coupling device to a rail-bound vehicle and / or the connection of connection components with the coupling device.
- the use in rail-bound vehicles allows a continuous and automated monitoring and detection of relative movements of the elements of the screw to each other also in the Operation of the vehicle.
- the complex manual control can be omitted and it can be relatively quickly responding to an impending failure of safety-relevant compounds.
- a particularly advantageous application is the monitoring of a screw connection, in which the screw element is formed by a pull rod and the counter element by a lock nut.
- FIG. 1a shows by way of example a screw connection
- Figure 1 b shows in a view of the end face of a screw head the
- Figure 1 c illustrates an embodiment of the cover in three views
- Figure 2 shows an example of a screw
- FIG. 3 shows an example of a screw according to Figure 2 with a
- Figure 4 shows an example of a screw according to Figure 1 with a
- FIG. 5 shows a design of a screw connection with an alternative
- Figure 6 shows an example of a screw for use in a
- Rail vehicle in particular formed between a pull rod and a lock nut.
- FIG. 1a illustrates, in a greatly simplified schematic illustration, a screw connection 1 formed by a screw element 2 and a counter element 3 with a monitoring device 4 in a first embodiment.
- the screw member 2 is extended by an extension in a longitudinal direction characterized.
- the longitudinal axis is denoted by L.
- the screw element 2 extends with its shaft 5 through in each case one through opening 9 and 10 of the components 7, 8 and is by means of the counter element. 3 secured in the form of a nut relative to the components 7 and 8.
- the screw head is supported on an end face 1 1 of a component 7, while the fuse is made via the counter element 3, which braces the two components 7, 8 against each other.
- the arrangement of the counter-element 3 takes place on the front side facing away from the end face 1 1 12 on the component 8.
- the screw shaft 5 stands on the interconnected components 7 and 8 also.
- the monitoring device 4 is provided.
- This comprises a detection device, configured to detect a twisting and / or axial displacement of the two elements of the screw connection - screw element 2 and / or counter element 3.
- This has one, on an element of the screw 1, here on the screw member 2, preferably the end face 13, arranged on the end portion of the shaft 5 encoder 14.
- the detection device further comprises at least one sensor 15 for detecting at least one of the following variables:
- the sensor is designated 15, the active sensor surface 15a.
- the arrangement of the sensor 15 is carried out on or in a cover 17, preferably on a provided on the inner circumference 16 of the cover 17 arrangement area.
- the cover 17 is in this case with a Element of the screw 1 - screw 2 or counter element 3 -, here the counter element 3 in the form of the nut 6, connected.
- the cover 17 surrounds the arrangement region 24 of the encoder 14 on the screw member 2 in the circumferential direction about the longitudinal axis L of the screw member 2 and viewed in the longitudinal direction at least over the arrangement region of the encoder 14 on the screw member 2.
- the cover 17 thus encloses the end portion of the screw 1, in particular the freely over the interconnected components 7, 8 protruding parts of the screw. 1
- the cover 17 is formed by a cap-like element 18 to form an inner space 19, which is attached to an element of the screw 1, in this case the mating element 4 mit casserolefest.
- the interior space 19 is designed to enclose the arrangement area 24 of the sensor 14 and furthermore to receive the sensor 15.
- the cap-like element 18 is characterized by a wall area which extends circumferentially around the longitudinal axis L at least over the extent of the arrangement area 24.
- the cap-like member 18 is further formed open to receive the locating portion 24 and the sensor 15 into the inner space 19 at an end portion 20. In this end region, the cap-like element has a connection region to 26.
- connection means for cooperation and the formation of a catch connection 21 of the cap-like element 18 with the counter element 3, here the nut 6.
- the cap-like element 18 at the of the connection 1 cybersecurity end area executed closed.
- the cap-like element 18 can be designed in many forms.
- the wall area in the attachment area on the counter element 3 when mounted on the outer circumference of the counter element 3 with respect to the inner circumference is complementary to the outer circumference of the counter element. 3 educated.
- the cap-like element 18 is attached in this case to the counter element 3 in the axial direction.
- the connection 21 may be formed by selecting the fits as a press connection, Preferably, the connection 21 is realized as a cohesive connection by gluing. Thereby, a relative movement between the counter-element and the cover 17 is avoided both in the longitudinal direction and in the circumferential direction, that is, the cover 17 is firmly connected with the mating element 3. It is also conceivable to make the fits between the inner circumference of the cap-like element in the connection region 26 and on the outer circumference of the counter element 3 such that a press fit is produced. Another possibility is to realize the connection 21 by positive engagement.
- a cover 17 formed by a cap-like element 18 is shown by way of example in Figure 1 c in three views. Visible is complementary design of the wall profile on the inner circumference 16 to the outer periphery of the counter element. 3
- the arrangement of the sensor 15 is preferably carried out contactless to the encoder 14, preferably at a distance opposite the encoder 14. In the case shown, the arrangement is carried out in a particularly advantageous manner on the bottom 22 of the cap-like element 18 via corresponding through holes 23 on the cap-like element 18 takes place the power supply and / or coupling of the sensor to corresponding means for forwarding and evaluation of the detected variables, such as a Evaluation device 25.
- the coupling is denoted by 28.
- the evaluation device 25 can also enable the function of displaying a case of relative movement of the elements of the screw connection to each other, in particular optically or acoustically or otherwise.
- the evaluation device may be part of a control and / or regulating device assigned to the respective module.
- the encoder 14 there are a number of possibilities.
- This can be either an optical encoder, for example in the form of a marking applied to the screw element 2, in particular the end face 13, or a color wheel or a color scale.
- the encoder 14 can also be applied magnetically or capacitively.
- the sensor 15 then performs a position determination. Twists an element of the screw 1, in particular the screw element 2, then the position of the encoder 14 is changed relative to the sensor 15, so that the sensor 15 can detect a change and this can report a parent device, such as control.
- FIG. 1 a schematically illustrates in simplified form the arrangement of the monitoring device 4 on a screw connection 1 by means of encoders 14 and sensors 15 arranged in a cover 17,
- FIG. 2 illustrates the monitoring on the screw head of the screw element 2.
- the screw element 2 is in the counter element in the illustrated case 3 screwed.
- the screw head is provided with an encoder 14 on its end face 27 oriented perpendicular to the longitudinal axis.
- the arrangement of the cooperating with this sensor 15 is carried out in analogy to the training described in Figure 1 a by arranging on or in a cover 17 which is fixed to the counter element 3.
- the attachment can be non-positive or positive or cohesive.
- the operation is analogous to that described in Figures 1 a to 1 c.
- FIG. 1 and 2 show simple embodiments of the cover 17 in the form of cap-like elements 18. These are either hollow cylindrical in design according to Figure 2 or adapted at least on the inner circumference 16 to the contour of the counter element 3, as in Figure 1 a and via connecting devices 21 connected to an end face or an outer periphery of the counter element 3.
- FIG. 3 illustrates an alternative arrangement of sensor 14 and sensor 15 of monitoring device 4 in a mounting situation of a screw connection 1 according to FIG. 2.
- Connection region 26 of the cover with an element of screw connection 1 and the arrangement of the unit consisting of sensor 15 and sensor 14 takes place here radial direction with offset, but preferably in an axial extension region based on the extension of the longitudinal axis.
- the screw element 2 extends with the longitudinal axis L through a threaded through hole 29 on a counter element 3 and is secured thereto.
- This may be a base body or another component, for example a wall region of a component, etc.
- the screw head bears against an end face of the main body or counter element 3.
- the cover 17 is here connected to the screw head 30 and adapted to detect a sensor 15 for detecting an encoder information of an arranged on the counter-element 3 encoder.
- the cover 17 is for this purpose designed such that it has a connection region 26 for connection to the screw head 30 and also a further region 31 for the arrangement of the sensor and for receiving or enclosing the encoder 14 when mounted on the screw head 30.
- the encoder 14 relative to the longitudinal axis L of the screw member 2 outside the screw head 30 mounted on the end face 32 of the base body or counter element 3, preferably the arrangement is in a plane with the contact surface of the screw head 30 on the end face 32 of the main body or counter element.
- the cover 17 comprises for this purpose two wall regions, a first wall region and a second wall region, wherein the first wall region has a first interior 19.1 for receiving the screw head 30 and a second interior 19.2, which in the radial direction relative to the longitudinal axis L of the cover 17 on a larger diameter than the first, is arranged.
- the second interior space 19.2 serves to receive the encoder 14 and the sensor 15.
- connection 21 of the cover 17 with the screw head 30 takes place, for example, by gluing, that is, by material bonding.
- Other designs, for example by adhesion or positive locking, are conceivable, however, require a corresponding design of cover and Screw head 30 with press fit or with additional connecting elements.
- the cover 17 is formed attachable to the connecting portion 26 on the screw head 30.
- the encoder 314 is arranged here on the counter element 3, in particular the end face 32.
- FIG. 4 illustrates a design of the use of a cover 17 according to FIG. 3 in a design of the screw connection 1 according to FIG. 1.
- the cover 17 forms here also two interiors 19.1, 19.2, each of which serves to enclose an arrangement region 24 of an encoder 14 on an element of the screw 1 in the circumferential direction about the longitudinal axis L and the arrangement or assignment of a sensor 15 to this encoder 14 to detect a relative movement between the elements of the screw pairing.
- the other further sensor 33 is arranged here on the component 8 and connected thereto.
- the connection can be made non-positively or positively or materially or a combination of these. With the sensor 33, the component 7 can be monitored.
- FIG. 1 illustrates a design of the use of a cover 17 according to FIG. 3 in a design of the screw connection 1 according to FIG. 1.
- FIG. 5 illustrates an alternative arrangement of an encoder and sensor on the screw element and counter element or cover in a situation according to FIG. 1, that is to say in the end region of a shank 5 of a screw connection 1, which is secured by a securing element in the form of a nut 6.
- the attachment of the cover 17 takes place here on the counter element 3, but on the screw member 2, wherein the attachment via a through the screw member, in particular the screw shaft, perpendicular to the longitudinal direction extending pin takes place.
- FIG. 6 illustrates an example of an embodiment according to Figure 1, in which the screw member 2 is formed by a tie rod or tie rod and the counter element 3 of a lock nut, wherein the tie rod is guided by a base body and this braced against another, not shown here component.
- the solution according to the invention is not limited to the embodiments shown in FIGS. 1 to 6. Furthermore, this includes all embodiments, which are characterized by the arrangement of a sensor 14 on an element of the screw 1 - screw 2 or counter element 3 -, wherein the arrangement of the encoder 14 takes place in a region which is normally cantilevered, which is why the arrangement of the The sensor 15 detecting the sensor information takes place on or in a cover 17, which surrounds the arrangement region 24 of the sensor 14 in the circumferential direction and is further connected with an element of the screw connection 1 - screw element 2 or counter element 3.
- This connection 21 may be formed non-positively, positively or materially. There are no restrictions in this regard.
- releasable compounds are chosen. These are then formed non-positively or cohesively.
- a material connection will be used alternatively or additionally.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016215202.5A DE102016215202A1 (de) | 2016-08-16 | 2016-08-16 | Schraubverbindung mit einer Überwachungseinrichtung |
PCT/EP2017/069159 WO2018033368A1 (de) | 2016-08-16 | 2017-07-28 | Schraubverbindung mit einer überwachungseinrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3500763A1 true EP3500763A1 (de) | 2019-06-26 |
Family
ID=59416706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17745339.6A Withdrawn EP3500763A1 (de) | 2016-08-16 | 2017-07-28 | Schraubverbindung mit einer überwachungseinrichtung |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3500763A1 (de) |
JP (1) | JP2019534993A (de) |
KR (1) | KR20190040004A (de) |
CN (1) | CN109642602A (de) |
DE (1) | DE102016215202A1 (de) |
WO (1) | WO2018033368A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3743690A1 (de) * | 2019-03-26 | 2020-12-02 | Salunda Limited | Sensoreinheit für befestigungsanordnung |
GB2604575A (en) * | 2020-12-31 | 2022-09-14 | Salunda Ltd | Monitoring indicators and rigid structures |
CN112922763B (zh) * | 2021-01-29 | 2023-03-10 | 华电电力科学研究院有限公司 | 水轮发电机组顶盖螺栓失效监测与预警装置及其工作方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI20035142A0 (fi) * | 2003-09-03 | 2003-09-03 | Ari Paeaekkoe | Mutterin/pultin löystymisen ilmaisin |
DE102007015927A1 (de) * | 2007-04-02 | 2008-10-09 | Continental Automotive Gmbh | Drehelementbefestigungseinrichtung |
DE102011053150B9 (de) * | 2011-08-31 | 2014-03-27 | Björn Maile | System und Verfahren zur klemmkrafterzeugenden Verschraubung von Bauteilen |
DE102013206997A1 (de) * | 2013-04-18 | 2014-11-06 | Voith Patent Gmbh | Überwachungssystem |
CN104405750A (zh) * | 2014-11-21 | 2015-03-11 | 无锡科思电子科技有限公司 | 一种智能感应式电螺丝 |
CN204610526U (zh) * | 2015-04-21 | 2015-09-02 | 杨志强 | 一种带预紧力和温升监测的智能螺栓 |
DE102015115508A1 (de) * | 2015-09-15 | 2017-03-16 | Manfred Holtkamp Elektronik Gmbh | Vorrichtung und Verfahren zur Überwachung lösbarer Bolzen-Mutterverbindungen |
-
2016
- 2016-08-16 DE DE102016215202.5A patent/DE102016215202A1/de not_active Withdrawn
-
2017
- 2017-07-28 WO PCT/EP2017/069159 patent/WO2018033368A1/de unknown
- 2017-07-28 EP EP17745339.6A patent/EP3500763A1/de not_active Withdrawn
- 2017-07-28 KR KR1020197007228A patent/KR20190040004A/ko not_active Application Discontinuation
- 2017-07-28 CN CN201780050134.6A patent/CN109642602A/zh active Pending
- 2017-07-28 JP JP2019508831A patent/JP2019534993A/ja not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2019534993A (ja) | 2019-12-05 |
CN109642602A (zh) | 2019-04-16 |
DE102016215202A1 (de) | 2018-02-22 |
WO2018033368A1 (de) | 2018-02-22 |
KR20190040004A (ko) | 2019-04-16 |
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