EP3849873A1 - Point machine arrangement and method for point diagnosis - Google Patents
Point machine arrangement and method for point diagnosisInfo
- Publication number
- EP3849873A1 EP3849873A1 EP19795117.1A EP19795117A EP3849873A1 EP 3849873 A1 EP3849873 A1 EP 3849873A1 EP 19795117 A EP19795117 A EP 19795117A EP 3849873 A1 EP3849873 A1 EP 3849873A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant
- drive arrangement
- switch drive
- determined
- measured values
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003745 diagnosis Methods 0.000 title claims abstract description 7
- 239000000314 lubricant Substances 0.000 claims abstract description 108
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 4
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 15
- 238000011156 evaluation Methods 0.000 description 8
- 238000010183 spectrum analysis Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
- B61L5/02—Mechanical devices for operating points or scotch-blocks, e.g. local manual control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
- B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions
-
- 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
- F16N—LUBRICATING
- F16N11/00—Arrangements for supplying grease from a stationary reservoir or the equivalent in or on the machine or member to be lubricated; Grease cups
-
- 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
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
-
- 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
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/20—Amount of lubricant
Definitions
- the invention relates to a switch drive arrangement with at least one movably arranged part and with at least one lubricant, which is provided for lubricating the part.
- the invention relates to a method for switch diagnosis, in which a state of wear of at least one switch drive arrangement is determined, the switch drive arrangement having at least one movably arranged part and at least one lubricant provided for lubricating the part.
- Switch drive arrangement also referred to briefly as switch drives, are electromechanical arrangements and are used for mechanically switching a switch in track-bound traffic, for example a railway switch. Together with the switch, the switch drive arrangement is one of the most important infrastructure components in track-bound traffic.
- a switch drive arrangement In order to achieve a long service life of, for example, more than 25 years, a switch drive arrangement must be serviced at regular intervals. A main part of the maintenance consists in the lubrication and oiling of the mechanically movable parts to minimize their friction. These parts can be subject to considerable mechanical wear. In order to determine the state of wear of a switch drive arrangement, regular inspections and visual inspections of the switch drive arrangement by maintenance personnel are common. These checks represent a considerable effort with the resulting high costs.
- the object of the present invention to provide a switch drive arrangement and a method of the type mentioned above, with which the maintenance effort and the costs can be reduced.
- the object is achieved according to the invention in that the switch drive arrangement has at least one sensor device, by means of whose measured values a characteristic value representative of a quantity of lubricant present on the part can be determined.
- the object for the method for switch diagnosis mentioned at the outset is achieved in that a quantity of lubricant which is sensitive to the part and / or a characteristic value representative of a quantity of lubricant present on the part is determined and by means of the quantity of lubricant
- the invention is based on the idea to check a sufficient wetting with lubricant of the moving parts of the turnout drive arrangement.
- a maintenance measure only needs to be triggered when it is really necessary.
- maintenance intervals can be increased or even periodic maintenance can be abandoned. Consequently, maintenance operations can be reduced by the invention and therefore with maintenance costs.
- the solution according to the invention makes an inspection of the switch drive arrangement with the purpose of determining the amount of lubricant present superfluous. An early consumption of lubricant can be recognized by the solution according to the invention, individual maintenance can subsequently be triggered and the service life of the switch drive arrangement can thereby be increased. The risk of failure of the switch drive arrangement and the risk of unplanned downtime or failure of the switch drive arrangement can thus be minimized.
- the solution according to the invention can be further developed by advantageous configuration, which are described below.
- the sensor device can thus comprise at least one lubricant sensor, by means of whose measured values an amount of lubricants on the part or at least on a section of the part can be determined. This has the advantage that the amount of lubricant on the moving part can be determined directly. It can be recognized very reliably if there is too little or no lubricant on the movable part or at least on a certain section thereof.
- the lubricant sensor can immerse, for example, in the lubricant in order to recognize it.
- the sensor device can use at least one lubricant
- composition or a signature of the lubricant include substance sensor, by means of whose measured values a composition or a signature of the lubricant can be determined.
- the lubricant can change and lose its lubricating properties due to strong mechanical stress. By determining the composition or signature of the lubricant, this can be recognized and appropriate measures triggered.
- the composition or signature of the lubricant can be determined, for example, by spectral analysis by the lubricant sensor.
- the sensor device can comprise at least one lubricant sensor, by means of whose measured values representative characteristic values for the lubricants fat and / or for oil can be determined.
- This has the advantage that separate lubricant sensors for grease and oil can be used.
- certain moving parts are usually provided with oil as a lubricant and other moving parts with grease as a lubricant.
- the sensor device can at least include a lubricant sensor, by means of whose measured values a lubricant delivered to the part over time amount of substance can be determined.
- Track-side devices in rail transport are known from the prior art, in which a lubricant reservoir is provided for the automatic dispensing of lubricant.
- a lubricant reservoir is described, for example, in EP 2 789 891 A2.
- the lubricant sensor mentioned can determine a quantity of lubricant emitted from a lubricant reservoir and thereby indirectly infer the quantity of lubricant present on the component.
- a combination with the other embodiments of the switch drive arrangement according to the invention is also possible.
- the point machine drive arrangement can have at least one transmission device through which the amount of lubricant or the measured values can be transmitted to an external center.
- the transmission device can, for example, be designed for wireless data communication via WiFi or GSM, or use wired communication.
- the movable part can be a gear wheel, a chain, a ball screw, an actuating rod or adjusting slide, a monitoring rod or test slide, a tongue tester and / or a slide.
- These parts usually belong to the lubricated, movably arranged parts of a switch drive arrangement.
- the invention also relates to a traffic engineering system, for example a railway engineering system, with a large number of switches with switch drive arrangements, at least some of the switch drive arrangements being designed according to one of the aforementioned embodiments.
- the system can have at least one control center to which the respective current lubricant quantities or the measured values are transmitted and in which the determined quantities of lubricant are recorded for the respective point machine arrangements.
- the method according to the invention can be predicted when an amount of lubricant and / or a state of wear will be reached which makes further measures necessary.
- the further measures can then be, for example, the use of maintenance personnel who check the condition of the switch drive arrangement on site and, if necessary, provide new lubricant.
- the prognosis of a point in time at which this state will be reached is particularly advantageous because it enables predictive maintenance planning.
- Figure 1 is a schematic representation of an example
- Figure 2 is a schematic representation of an example
- FIG. 1 shows a schematic representation of an exemplary embodiment of a turnout drive arrangement 1 according to the invention, which has a plurality of movably arranged parts, a housing 2, a drive motor 3 and a Sensoreinrich device 4.
- the moving parts of the switch drive arrangement 1 are here a plurality of gears of a transmission 5, a ball screw 6, an actuating rod 7 and a monitoring rod 8.
- the switch drive arrangement 1 is designed as a mechanical drive for mechanical changeover of a railway switch.
- the switch drive arrangement 1 continues to point Lubricant (not shown), which is arranged on the movably arranged parts for lubrication.
- the switch drive arrangement 1 is shown in FIG. 1 without the housing cover, in the open state. In operation Be the housing 2 is of course closed.
- the sensor device 4 comprises a plurality of lubricant sensors 9 and an evaluation and transmission device 10 connected to the lubricant sensors 9.
- the lubricant sensors 9 are each assigned to one of the moving parts of the point machine drive arrangement 1 and arranged on or in the area thereof.
- a lubricant sensor 9 can be arranged on the ball screw 6 in the end position of the switch drive arrangement 1, because in this area lubricant is usually applied.
- a further lubricant sensor 9 can be fitted in such a way that the oiling of a drive chain (not shown) is detected.
- the lubricant sensors 9 detect the lubricant located on the corresponding part and output a representative measured value.
- one or more of the lubricant sensors 9 can be designed to determine a composition or a signature of the lubricant. This can be done, for example, by means of spectral analysis of the lubricant.
- the different lubricant sensors can determine representative characteristic values for both the grease lubricant and the oil lubricant.
- the lubricant sensors 9 can, for example, be laser sensors with spectral analysis, micro-bio sensors or infrared spectroscopic sensors (infrared spectroscopic sensors).
- the measured values of the lubricant sensors 9 are passed on to the evaluation and transmission device 10 and evaluated.
- the evaluation and transmission device 10 determines what amount of lubricant has been detected on the respective movable part of the switch drive arrangement 1.
- the evaluation and transmission device 10 for each of the movable part and / or for the entire turnout drive arrangement 1 can determine whether a limit value for a sufficient amount of lubricant has been met or fallen below.
- the result or the results are transmitted from the evaluation and transmission device 10 to a control center, which is described in more detail below with reference to FIG. 2.
- the evaluation and transmission device 10 is designed, for example, for wireless data transmission and includes, for example, a WLAN module.
- cable-based data transmission or wireless transmission can of course also be carried out according to another principle.
- the sensor device 4 of the switch drive arrangement 1 according to the invention thus determines whether and in what quantity of lubricant is present at important points of the switch drive arrangement 1. These important points are the above-mentioned moving parts, as they are subject to increased wear without sufficient lubricant.
- the lubricant sensors can monitor suitable areas or parts.
- the evaluation and transmission device 10 If the value falls below a predefined limit value, which can be predefined individually for each moving part, this is detected by the evaluation and transmission device 10 and a corresponding warning signal is output.
- the warning signal can also be issued if the composition or the signature of the lubricant has changed in an impermissible manner. From the ascertained quantities of lubricant on the moving parts and their course over time, the evaluation and transmission device 10 can predict a point in time at which it will reach or fall below the limit value. For the determined As a result, maintenance for the corresponding drive arrangement 1 can be scheduled in advance.
- the mechanical drive arrangement 1 can also have a lubricant reservoir, not shown here, from which new lubricant can be dispensed to the moving parts.
- a lubricant reservoir is, for example, from the
- EP 2 789 891 A2 known.
- an activation of a lubricant pump can also follow, which provides a predetermined amount of new lubricant from the lubricant reservoir.
- Another lubricant sensor which monitors the dispensing of the lubricant reservoir, can be arranged on the lubricant reservoir. The sensor can determine the amount of lubricant dispensed over time and thus indirectly determine the amount of lubricant on the parts.
- FIG. 2 schematically shows a part of a railway system 11 according to the invention, which comprises a rail network with a large number of switches 12 and switch drive arrangements 1. Furthermore, the railway system 11 comprises a control center 13 to which the point machine arrangements 1 according to the invention transmit the respectively determined lubricant state, the determined lubricant quantities or also the measured values of the lubricant sensors. If only the measured values of the lubricant sensors are transmitted to the control center 13, the respective amounts of lubricant can also be determined in the control center 13. The measured values can also be transmitted to a cloud, from which the central office 13 retrieves this. Subsequently, a visualization of the lubricant quantities for the respective switch machine arrangements 1 can be shown in the control center 13, for example in a map of the railway system 11.
- the determined lubricant quantities or the determined lubricant supply can also be integrated into an existing monitoring system in which, for example, further diagnostic data of the point machine arrangements 1 are shown and processed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018219137.9A DE102018219137A1 (en) | 2018-11-09 | 2018-11-09 | Switch drive arrangement and method for switch diagnosis |
PCT/EP2019/077961 WO2020094345A1 (en) | 2018-11-09 | 2019-10-15 | Point machine arrangement and method for point diagnosis |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3849873A1 true EP3849873A1 (en) | 2021-07-21 |
Family
ID=68387278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19795117.1A Pending EP3849873A1 (en) | 2018-11-09 | 2019-10-15 | Point machine arrangement and method for point diagnosis |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3849873A1 (en) |
CN (1) | CN112996708A (en) |
DE (1) | DE102018219137A1 (en) |
WO (1) | WO2020094345A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113445371A (en) * | 2020-03-25 | 2021-09-28 | 四川鑫力智信科技有限公司 | Intelligent oil injection protection device for turnout lock hook |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT399401B (en) * | 1988-05-27 | 1995-05-26 | Voest Alpine Eisenbahnsysteme | DEVICE FOR DETECTING THE CONDITION OF RAILS OR CROSSINGS |
AT399696B (en) * | 1992-11-04 | 1995-06-26 | Alcatel Austria Ag | SWITCH DRIVE |
US7513335B2 (en) * | 2003-05-29 | 2009-04-07 | Tranergy Corporation | Railroad switch lubricator |
DE102007042254A1 (en) * | 2007-09-06 | 2009-04-02 | Carl Freudenberg Kg | Measuring device and method for analyzing the lubricant of a bearing |
DE102010015722A1 (en) * | 2010-04-21 | 2011-10-27 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement, in particular for a spindle bearing |
EP2895786B2 (en) * | 2012-08-01 | 2023-09-27 | Vestas Wind Systems A/S | Method and system of lubricating consumers to be monitored via their lubricant |
CN202955452U (en) * | 2012-10-29 | 2013-05-29 | 中国铁道科学研究院通信信号研究所 | Lubricating device |
DE202013003449U1 (en) | 2013-04-12 | 2013-05-13 | Schwihag Ag | Lubrication device for switch locks |
EP3305622A1 (en) * | 2016-10-06 | 2018-04-11 | Siemens Schweiz AG | Method for diagnosis of spatially distributed technical components |
CN107054410B (en) * | 2017-04-01 | 2019-06-11 | 广州地铁集团有限公司 | The intelligent diagnosis system and diagnostic method of point machine |
CN206945059U (en) * | 2017-07-13 | 2018-01-30 | 上海邦诚电信技术股份有限公司 | Electric casement goat composite monitoring device |
-
2018
- 2018-11-09 DE DE102018219137.9A patent/DE102018219137A1/en not_active Withdrawn
-
2019
- 2019-10-15 CN CN201980073777.1A patent/CN112996708A/en active Pending
- 2019-10-15 EP EP19795117.1A patent/EP3849873A1/en active Pending
- 2019-10-15 WO PCT/EP2019/077961 patent/WO2020094345A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102018219137A1 (en) | 2020-05-14 |
CN112996708A (en) | 2021-06-18 |
WO2020094345A1 (en) | 2020-05-14 |
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