EP2300666A1 - Dispositif mobile muni d'un systeme d'enlevement - Google Patents

Dispositif mobile muni d'un systeme d'enlevement

Info

Publication number
EP2300666A1
EP2300666A1 EP09737895A EP09737895A EP2300666A1 EP 2300666 A1 EP2300666 A1 EP 2300666A1 EP 09737895 A EP09737895 A EP 09737895A EP 09737895 A EP09737895 A EP 09737895A EP 2300666 A1 EP2300666 A1 EP 2300666A1
Authority
EP
European Patent Office
Prior art keywords
mobile device
separation unit
separation
particles
contents
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.)
Granted
Application number
EP09737895A
Other languages
German (de)
English (en)
Other versions
EP2300666B1 (fr
Inventor
Johann Owegeser
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.)
SMG Sportplatzmaschinenbau GmbH
Original Assignee
SMG Sportplatzmaschinenbau 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 SMG Sportplatzmaschinenbau GmbH filed Critical SMG Sportplatzmaschinenbau GmbH
Publication of EP2300666A1 publication Critical patent/EP2300666A1/fr
Application granted granted Critical
Publication of EP2300666B1 publication Critical patent/EP2300666B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
    • E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
    • E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/02—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt
    • E01H1/04—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading
    • E01H1/045—Brushing apparatus, e.g. with auxiliary instruments for mechanically loosening dirt taking- up the sweepings, e.g. for collecting, for loading the loading means being a rotating brush with horizontal axis

Definitions

  • the invention relates to a mobile device with a removal device for the removal of at least a portion of the possibly mixed with particles filling material from an artificial turf field, wherein the device has a separation unit, and the separation unit separates the particles from the contents.
  • Generic devices have a rotating brush that ausquit from the artificial turf pitch or plastic turf the filling material, for example, sand and / or rubber granules, while also resting on the place dirt like Leaves, paper and so on.
  • the filling material for example, sand and / or rubber granules
  • these particles are separated from the contents and afterwards the contents are again applied to the artificial turf pitch in a suitable manner.
  • the invention is based on a mobile device as described above and proposes that a variable, in particular continuously variable separation dimension for the separation of the particles is provided by the contents.
  • the separation measure which is used in the separation unit and used to separate the particles of the contents (ie dirt from the interspersed sand or rubber granules)
  • the separation measure is variable, for example, to the special conditions of the war- to in the short term to correspond to the artificial turf pitch to be cleaned and cleaned.
  • the degree of separation is also variable based on the nature of the particle.
  • the separation dimension is variable based on the particle mass.
  • the admission of the particle mixture with an air flow is controlled via the variable separation measure, which causes only the particles are sorted out in a defined mass range.
  • particle texture does not exclusively cover the abovementioned physical parameters of the particles.
  • the particles are selected on the basis of the chemical nature, so that the separation dimension is changed on the basis of this particle property in a correspondingly designed separation unit.
  • the mobile device according to the invention Due to the particular stepless variability of the separation measure, it is also possible to use the mobile device according to the invention not only for cleaning tasks, but also, for example, for maintenance purposes.
  • the contents of two different types of particles for example, sand and granules, each with different grain size. Since the grain sizes may differ only by a few 1/10 mm under certain circumstances, with the help of the proposal according to the invention, a separation of the contents in the different two types of particles can be made, that is, the invention is not limited to the cleaning task of a corresponding artificial turf pitch.
  • the device according to the invention in addition to the known cleaning tasks of the artificial turf field, the device according to the invention additionally to use for maintenance tasks, if For example, the contents to change or edit accordingly.
  • a separation unit for the separation and partial recycling of the particles or the filling material is provided on the artificial turf pitch, wherein the return takes place directly from the separation unit.
  • the device according to the invention can also be designed so that the separation unit has a variable, in particular continuously variable range, and the particles are separated from the contents in this variable region of the separation unit. Furthermore, it is provided that the separation unit is also due to the design with multiple areas, of which a single area is changeable, even after changing the separation dimension is able to continuously, in particular interruption-free particles to be separated from the contents.
  • a further embodiment of the invention provides that the mobile device according to the invention not only has a variable range, but a plurality of variable regions, which are arranged one behind the other.
  • the arrangement one behind the other means in the present case that the areas can be arranged both processually and spatially one behind the other. According to the invention, however, it is provided that the area as well as the areas with respect to the separation dimension is or are changeable. According to the invention, it is provided that the individual constituents of the filling material as a particle of the remaining contents can be separated by the invention.
  • the separation unit has a plurality of openings for the passage of the contents and so the separation unit separates the particles from the contents and the opening width is variable, in particular continuously variable.
  • the opening width of the openings of the separation unit is variable, in particular continuously variable.
  • the invention is not limited to this, and other variants of a separation unit can likewise be used according to the invention in the same way.
  • the separation properties of a separation unit so equipped are set.
  • the separation unit has openings, these are conveniently arranged in one plane. Due to this arrangement, particle blockages in the separation unit are avoided since only a single separation process takes place.
  • an adjustment device for the separation dimension is provided on the mobile device. This makes it possible to adapt the mobile device to the respective conditions on the artificial turf pitch directly and at short notice, since the adjusting device is always available on the device because it moves along with it.
  • a brush rotating about an axis to be provided as the removal device.
  • a corresponding extraction system can also be used as the removal device.
  • the suction on the artificial turf pitch particles and contents, similar to a vacuum cleaner sucks.
  • the use of a rotating brush is possibly more effective, since a larger proportion of contents from the artificial turf can be worked out.
  • the brush has, for example bristles, which intervene due to the rotating movement between the blades of the artificial turf and thus sweep the contents including particles.
  • the axis of rotation is preferably parallel to the plane of the artificial turf, usually oriented horizontally.
  • a brush with bristles In addition to the realization of a brush with bristles but also a variant is provided according to the invention, according to which on the brush according to individual massive tines are arranged, which optionally cooperate in combination with a bristle brush.
  • the tines may optionally have a slightly greater length and thus engage more deeply in the interspersed in the artificial turf product and this loosen up accordingly. It is then possibly a lesser part with also turned out, but there is also a loosening of the interspersed filling in artificial turf.
  • machining operation that is, with one shutdown of the entire lawn, several operations, namely a removal of dirt particles and other particles, ie a cleaning of the place, possibly also a cleaning of the swept filling, connected with a loosening of not sweetened and at the same time a raising of the stalks of the artificial turf.
  • a height adjustment of the removal device is provided according to the invention, whereby the effectiveness range of the removal device can be adjusted.
  • the height adjustment usually acts at right angles to the artificial turf pitch and ultimately determines the penetration depth of the removal device, for example, in the embodiment of the removal device as a rotating brush (possibly also with tines), up to which level the bristles of the brush particles and contents from the lawn.
  • the separation unit is designed as a double screen, with a first and a second arranged parallel thereto, the first relatively movable second sieve, wherein the sieves each having a plurality of sieve openings and the sieve openings arranged one above the other openings of the Form separation unit.
  • the two screens used in the twin-wire are designed identically and to a certain extent relative to each other relatively movable, for example by the adjustment.
  • both screens are, for example, in opposite directions to each other movable.
  • both screens are oriented parallel to each other, this does not preclude an arrangement in which these two screens also include a small angle to each other. This too is still covered by the term "parallel”.
  • Cleverly an arrangement that is as parallel as possible is selected in order to avoid jamming of the contents to be screened due to the inclination between the two screens.
  • An advantage of this embodiment with the screens according to the invention lies in the fact that it is very easy to solve and extremely effective.
  • it is provided according to the invention to realize the separation unit for example, by an air-sighting arrangement.
  • the screen openings are rectangular or square and the sliding movement between the two screens is diagonal thereto.
  • a square configuration of the sieve opening which is located in many ways on the respective sieves, sought, since in a simple manner, as proposed, the edge length of the sieve opening can be reduced or changed in both directions similar. If the sliding movement, as described, in the diagonal direction of a square, so emerges in a proportionate same way the second sieve under the first sieve and the webs of the second sieve similarly reduce the sieve opening of the first sieve to a resulting opening of the separation unit. Such an arrangement therefore ensures a similar adjustability of the separation unit with high quality of the separation result.
  • a slider or a thumbwheel is provided as an adjustment, the operation of which acts on the relative position of the two screens.
  • the setting device has a corresponding determination of the slide or setting wheel, so that the once selected separating measure does not change again automatically.
  • the adjustment device is also equipped with a corresponding display in order to display the currently used degree of separation to the user. This can be done in a simple manner by appropriately mechanically moving hands and the like.
  • both the removal device, as well as the separation unit extend skillfully over the entire width of the mobile device in order to achieve the highest possible degree of coverage and thus to provide the largest possible processing width available.
  • the result of this is that, under certain circumstances, a relatively high flow of expanded product has reached the separating unit, which has to be guided over the separating unit extending in the direction of travel.
  • the Separating unit has a transport arrangement for the contents to provide within the device according to the invention for a corresponding onward transport of the contents.
  • the transport arrangement is realized in such a way that the filling material removed at the removal device arranged in front in the direction of travel is treated accordingly on the separation unit following in the direction of travel and is immediately re-installed into the space after the separation unit, if possible at the location it was expanded. It is therefore cleverly provided, if appropriate, a regulation or control for the speed of the filling material by the transport arrangement in the separation unit.
  • the twin wire is inclined at an acute angle, such that the collecting area located in front in the direction of travel is higher than the end area of the twin wire.
  • an angle of inclination relative to the horizontal of approximately 1 ° to 15 °, in particular approximately 3 ° to 9 ° is provided.
  • an inclination angle of about 5 ° is selected.
  • the inclined arrangement of the twin wire but also helps that on the screen approaching product as evenly as possible to distribute the width, but also in the direction of travel.
  • the transport arrangement is realized by a trained as a vibrating screen twin-wire.
  • a vibrating screen twin-wire By shaking or vibrating the twin wire transporting is already achieved when this vertical movement is done namely with an inclined double screen.
  • the configured as bulk material sand, rubber granules or other pourable goods
  • dance downright on the twin wire are transported due to the inclined position of the higher to the lower area.
  • the contents gradually falls through the openings of the screen, but the particles to be filtered out are transported by the shaking movement in the lower end of the separation unit.
  • an eccentric drive is provided for the shaker screen. Due to the eccentric drive not only a high spin (only a vertical movement) of the contents is achieved, but the eccentric movement also includes a horizontal component of movement. This results in a high and back-to-move of the product-particle mixture to be separated.
  • the arrangement is chosen so that in the end of the screen, so at the lowest point of the screen, actually only a vertical movement is observed.
  • another transport movement usually no longer necessary, since then other mechanisms take effect.
  • the separation unit the Particles are separated according to the set separation size, for example, the grain size or the Sieb shortcomingses, from the contents.
  • the contents fall through, for example, by the inventively provided double screen down and is immediately reinstalled in the artificial turf by falling through the bottom open double screen directly on the floor.
  • the invention is not limited to the fact that the contents after the separation unit immediately falls back into the artificial turf pitch, as provided in a first variant of the invention, but it is also possible to dissipate the so treated (because separate) contents in such a container or to reinstall at a later date.
  • a corresponding delivery option must also be provided for the particles separated from the contents.
  • one or more conveying units are provided for this purpose, which convey the particles after the separating unit, in particular into a collecting area.
  • the particles usually corresponding dirt particles, paper, bags, but also leaves, etc., just what can rest on a sports field or artificial turf are collected accordingly in a collection area.
  • the invention also provides several different conveyor units according to the invention.
  • the collecting area is designed as a dirt trough.
  • the collecting area is provided on the device, that is, the dirt pan is provided, for example, as an emptying drawer on the mobile device. It is also possible that the collecting area according to the invention on the towing device moving towing vehicle or a therefrom separate other vehicle, which mittool with the mobile device is located. As a result, if necessary, significantly larger collection areas can be realized.
  • a conveying device for the particles several variants are provided according to the invention.
  • a cross conveyor is provided.
  • a transverse conveyor for example a rotating conveyor worm with screws arranged in opposite directions, it is possible to collect the dirt accumulating, for example, in the side area of the mobile device, in a central area and to extract it centrally there, for example.
  • a transverse conveyor for example a rotating conveyor worm with screws arranged in opposite directions.
  • both groups of conveyors are combined with each other and, for example, first a transverse conveying (transverse to the direction of travel of the movable device) and afterwards a corresponding suction are combined.
  • a level indicator is provided by present in the separation unit filling material.
  • a fill level indicator is preferably arranged, for example, at the end of the twin-wire, so as to indicate when too much filling material accumulates in the mobile device. In such a situation, the speed of travel of the device relative to the ground is then too high and therefore to be reduced in order to allow sufficient time for the product to be cleaned to fall back to the ground through the twin-wire screen.
  • the arrangement is to be operated in such a way that the current is absorbed by the removal device. and the flow of product cleaned by the separation unit is the same.
  • a central drive for the rotation of the brush, the conveyor and / or the transport arrangement is provided.
  • the mobile device is towed by a separate vehicle, for example a towing vehicle, a tractor or the like.
  • tractors usually have a sufficiently strong engine, since the arrangement is usually dimensioned so that with this engine, other mechanical parts can be driven.
  • a corresponding Zapfaufnähme for transmitting the torque is standardized and the central drive according to the invention has a coupling point in order to connect this to the drive of the device moving towing vehicle.
  • a central drive does not exclude according to the invention in any way that the individual elements, the brush and the conveyor or the transport arrangement, have independent drives.
  • a separate, serving as a central drive motor is provided on the device along. This can be for example an electric motor or an internal combustion engine. From this centrally located engine is then transmitted in a suitable manner via appropriate gear or shafts, etc., the torque to the respective intended elements.
  • the mobile device as a towed device, for example by means of a towing vehicle, or as a self-propelled device, for example in a corresponding vehicle, feasible.
  • the inventive concept presented here is usually wise designed for a processing width of about 900 mm.
  • the structure of the individual devices is symmetrical to each other, which, for example, in the middle, for example, in the first device on the left or in the second device on the right of the suction arranges, the central for both Devices is arranged on the towing vehicle.
  • the arrangement of the two devices must not be at the same height next to each other, they can with respect to the
  • Driving direction also be slightly offset side by side according to the invention.
  • Fig. 1 shows a mobile device according to the invention in a vertical section along the line I - I of FIG. 2;
  • FIG. 3 is a plan view of the twin-wire according to the invention.
  • the mobile device 2 is shown schematically. It consists of a relatively long but compact, low-housing, which is movable over front wheels 21 and rear wheels 22 on the artificial turf. The preferred direction of travel is given by the arrow 20 (drawn here to the left).
  • a corresponding connection arrangement for example for a towing vehicle, is provided, since the embodiment shown here is implemented as a towed mobile device 2.
  • the front wheels 21 are rotatable about a vertical axis of rotation and therefore the entire arrangement can also be driven in curves.
  • the arrangement is such that the essential elements of the device 2 are arranged in a housing 23 and the height position of this housing 23 with its built-in parts relative to the front wheels 21 by the height adjustment 12 is variable. This results in a vertical adjustability, which is indicated by the double arrow 13.
  • the height adjustment 12 is realized here, for example, as a handwheel. It can also be a motor drive. In the direction of travel 20 after the front wheels 21 closes in the housing 23, immediately after the height adjustment 12, first a removal device 1 at.
  • This removal device 1 is realized in the embodiment shown here as a rotating brush 10 which rotates about the horizontal axis 11. The necessary drive is not shown for clarity.
  • the circle of the brush 10 is slightly opposite the turf surface characterized by the connections of the tires 21,22. This engagement of the brush 10 in the artificial turf makes it possible to sweep out correspondingly discharged there from him contents. Due to the adjustability of the altitude by means of the height adjustment 12, this can be varied.
  • the direction of rotation of the brush 10 is, for example, here in the clockwise direction, whereby it follows that the lower portion of the brush, which engages in the artificial turf, in the same direction as the direction of travel 20. Filled out of the artificial turf with particulate particles is from the Brush transported in the upper region of the housing 23 and conveyed into the collecting area 33 of a downstream in the direction of travel 20 of the removal device 1 separation unit.
  • the separation unit 3 consists of a tilted double screen 30, the front fifth is provided approximately as a collecting area 33.
  • This adjustment flap 34 is pivotable about a horizontal axis and extends over the entire width of the housing 23 or the movable device 2. This results in the possibility to adjust the size of the collecting area (that is, the longitudinal extent seen in the direction of travel). The position of the adjustment flap 34 thus ultimately determines the point of impact of the product conveyed by the brush 10 into the separation unit 3. This damper controls thus the delivery of the purified filling material with the aim to achieve the most homogeneous, uniform installation of the cleaned material.
  • the twin wire 30 is disposed inclined so that the catching portion 33 is higher than the end portion 301.
  • the twin-wire 30 can be set in vibration by the eccentric drive 300 in such a way that a transport arrangement for the filling material in the separation unit 3 results.
  • the eccentric drive generates not only an up and down movement, but also a horizontal component of movement, whereby the resting on the double screen 30 filling material is pushed upwards and backwards. It follows, therefore, of course, a homogeneous distribution of the contents on the twin wire 30th
  • twin wire 30 results in particular from FIGS. 4a to 4c.
  • the arrangement is chosen so that the contents through the twin wire 30, if the opening width of the screen is correspondingly suitable to fall through and thus is immediately installed again in the artificial turf.
  • appropriate particles such as dirt, paper, leaves or other objects, whose diameter is greater than the separation size or the screen diameter, then remain.
  • a conveyor 5 which is inventively designed to be very variable.
  • a suction device 50 is indicated as conveying device 5.
  • the fan of the turbine of the exhaust system 50 is not shown here. It is located, for example, on a towing device 2 trailing vehicle. Therefore, the exhaust system 50 here only includes the suction channel 52 which is surrounded by the housing 51. On the housing 51 is a corresponding Suction hose leading to the fan or the turbine, connectable. Of course, a fan can also be attached to the device as an alternative.
  • the housing 51 expand, seen in the direction of travel, funnel-like.
  • the separation unit 3 is shown schematically in one embodiment.
  • the separation unit 3 is realized here as a double screen 30.
  • the double screen 30 consists of two superimposed screens 37, 38, which are movable in a certain manner relative to each other, this relative or displacement movement is indicated by the double arrow 32.
  • the openings 31 of the separation unit 3 are square and the direction of the relative or displacement movement 32 of the two screens 37, 38 is parallel to one another to a diagonal of these square openings 31.
  • Fig. 4a, 4b and 4c three different positions of the twin wire 30 are indicated, leading to different separation dimensions, as shown in Fig. 5a, 5b and 5c lead.
  • a setting is selected, which gives the largest separation measure (here, for example edge length of the square 10 mm).
  • a first screen 37 is fixedly disposed below the second screen 38.
  • the first sieve 37 and the second sieve 38 are largely identical, in particular they have the same configuration of the respective sieve openings 39 and their webs 302. That is, the length and width of the lands 302 are the same. In the variant shown in FIGS. 4 a and 5 a, therefore, the second sieve 38 completely covers the underlying first sieve 37.
  • an adjusting device 4 is provided on the mobile device, which is here for example a corresponding adjusting screw or a sliding clamp closure.
  • Fig. 4b the effect of the adjusting device 4 is indicated.
  • the second screen 38 is slightly offset to the left along the arrow 32 and it emerges below the first sieve 37, filled out for clearer identification with black out.
  • opening 31 of the separation unit 3 which has indeed been defined in FIG. 5 a by the clear screen opening 39, is now reduced in FIG. 5 b to an edge length of 7 mm, cf. Opening 31 '.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

L'invention concerne un dispositif mobile muni d'un système d'enlèvement pour l'enlèvement d'au moins une partie du matériau de remplissage mélangé le cas échéant à des particules d'un site de pelouse artificielle, le dispositif présentant une unité de séparation pour séparer les particules du matériau de remplissage. L'invention est caractérisée en ce que l'unité de séparation présente une mesure de séparation variable, en particulier à variation continue, pour la séparation des particules du matériau de remplissage.
EP09737895.4A 2008-04-30 2009-04-30 Dispositif mobile muni d'un systeme d'enlevement Not-in-force EP2300666B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008006019U DE202008006019U1 (de) 2008-04-30 2008-04-30 Fahrbare Vorrichtung mit einer Abtragvorrichtung
PCT/EP2009/003140 WO2009132851A1 (fr) 2008-04-30 2009-04-30 Dispositif mobile muni d’un système d’enlèvement

Publications (2)

Publication Number Publication Date
EP2300666A1 true EP2300666A1 (fr) 2011-03-30
EP2300666B1 EP2300666B1 (fr) 2018-03-21

Family

ID=40935695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09737895.4A Not-in-force EP2300666B1 (fr) 2008-04-30 2009-04-30 Dispositif mobile muni d'un systeme d'enlevement

Country Status (4)

Country Link
EP (1) EP2300666B1 (fr)
CN (1) CN102016180A (fr)
DE (1) DE202008006019U1 (fr)
WO (1) WO2009132851A1 (fr)

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DE102010011418B4 (de) * 2010-03-15 2012-10-18 Wolfgang Seeholzer Vorrichtung, System und Verfahren zum Nassreinigen von Kunstrasen
DK2796034T3 (en) 2010-05-17 2016-01-18 Schuurman Holding B V Filler material removal device for removing filling material from a web of artificial grass court
DE102010033366A1 (de) * 2010-08-04 2012-02-09 Handschuh Gmbh Vorrichtung und Verfahren zum Abziehen des Bodens eines Reitplatzes
DE102010033367A1 (de) * 2010-08-04 2012-02-09 Handschuh Gmbh Vorrichtung und Verfahren zum Abziehen des Bodens eines Reitplatzes
DE102013004948B4 (de) * 2013-03-21 2021-09-02 Bomag Gmbh Arbeitszug mit von einer Bodenfräsmaschine gezogenem Siloanhänger und Anhängeeinrichtung für einen solchen Arbeitszug
CN104641952A (zh) * 2013-11-22 2015-05-27 Smg运动场工程有限公司 清洁机器设备
DE202016101311U1 (de) * 2016-03-09 2017-06-12 Smg Sportplatzmaschinenbau Gmbh Reinigungsvorrichtung
CN106337385B (zh) * 2016-08-30 2018-02-27 余婷 一种动车铁轨中部自动除杂装置

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Also Published As

Publication number Publication date
EP2300666B1 (fr) 2018-03-21
WO2009132851A1 (fr) 2009-11-05
CN102016180A (zh) 2011-04-13
DE202008006019U1 (de) 2009-09-10

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