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EP2653612B1 - Protection de bord pour une machine à fraiser la chaussée - Google Patents

Protection de bord pour une machine à fraiser la chaussée Download PDF

Info

Publication number
EP2653612B1
EP2653612B1 EP13157055.8A EP13157055A EP2653612B1 EP 2653612 B1 EP2653612 B1 EP 2653612B1 EP 13157055 A EP13157055 A EP 13157055A EP 2653612 B1 EP2653612 B1 EP 2653612B1
Authority
EP
European Patent Office
Prior art keywords
plug
lug
skid
edge protection
protection according
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.)
Not-in-force
Application number
EP13157055.8A
Other languages
German (de)
English (en)
Other versions
EP2653612A3 (fr
EP2653612A2 (fr
Inventor
Herbert Ley
Philip Verhaelen
Markus Roth
Cyrus Barimani
Günter HÄHN
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.)
Wirtgen GmbH
Original Assignee
Wirtgen 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 Wirtgen GmbH filed Critical Wirtgen GmbH
Publication of EP2653612A2 publication Critical patent/EP2653612A2/fr
Publication of EP2653612A3 publication Critical patent/EP2653612A3/fr
Application granted granted Critical
Publication of EP2653612B1 publication Critical patent/EP2653612B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/088—Rotary tools, e.g. milling drums

Definitions

  • the invention relates to an edge protection for a road milling machine or the like tillage machine
  • Road milling machines are used in road and road construction. They serve to remove the existing road surface completely or preferably partially.
  • a milling drum is used, which is housed protected within a milling box.
  • the milling drum is usually equipped with chisels, which engage the road surface in the substrate to be processed.
  • At the running in the direction of the road milling machine sides of the milling box protective elements are used, which are referred to as edge protection.
  • the edge protection covers the milling drum from the side and thus prevents access to the milling drum during milling operation. On the other hand, ejection of milled material into the environment is prevented.
  • the edge protector stands on the road surface with a lower runner so that complete coverage of the milling drum is achieved.
  • the skid pushes on the unprocessed road surface, which is located after the milling drum outside the work area. Accordingly, the edge protection thus forms an abutment which prevents a breaking of the laterally adjoining road surface during the milling process.
  • the skid is composed of skid segments, which are subject to wear and therefore must be replaced after reaching their wear limit.
  • the screw heads of the skid segments are sometimes exposed to the abrasive attack of removed material and are then abraded. They can then no longer be solved with the intended tool.
  • it is possible that the connection surfaces between the edge protection and the skid segments are washed out. Then the skid segments can no longer be positioned exactly reproducible.
  • US 2011/0315465 A1 discloses a snow clearing device. This has a conveyor spiral, with the snow can be moved in a broaching box. The broach has skids on opposite sides.
  • the attachment portion of the skid segment is formed as a plug-in approach.
  • the runner segment can be plugged with the plug-in approach in a suitably trained plug-in receptacle of the edge protection, so that it can be easily exchanged in rough construction site operation.
  • the plug-in approach is arranged in the plug-in receptacle in a wear-protected area, so that a reproducible assignment of the skid segment is supported for edge protection.
  • the skid segments can be easily inserted into the plug-in receptacles, preferably without tools.
  • At least one stop surface is provided which extends transversely to the direction of insertion predetermining central longitudinal axis of the plug extension extends. Consequently, the runner segment can be inserted with its insertion projection, that is, into the edge protector, until the stop surface defines the insertion movement.
  • the plug-in approach has a stop with which the insertion movement can be limited. The stop is thus accommodated wear-protected in the area of the plug-in extension.
  • the assembly can be further simplified in that the plug-in approach is provided in the region of its free end with at least one integrally formed Ein Industrieszentritation.
  • the plug-in approach has on opposite sides supporting flanks extending transversely to the direction of the runner segment, then a positive support in the main force direction can be achieved at the edge protection during operation.
  • the support flanks are parallel to each other or they converge in the insertion direction of the plug-in approach.
  • converging surface areas also results in a tapered geometry of the plug-in approach, which facilitates the introduction into the plug-in receptacle.
  • the road milling machine is moved transversely to the main direction of travel.
  • the plug approach on opposite sides extending in the running direction of the skid segment side surfaces having. With these side surfaces, the runner segment can be positively supported on corresponding mating surfaces of the edge protector.
  • the plug approach to a running through the central longitudinal axis of the plug approach and extending transversely to the direction of the skid segment transverse central plane has an asymmetrical geometry.
  • At least one projecting in the direction of projection is provided which protrudes in or opposite to the direction over the plug-in approach.
  • the projection serves to bridge between standing edge protection areas between the individual segments segments and thus enables the most distance-free skid training.
  • a compact design of the skid segment is supported by the fact that directly or indirectly connected to the plug-in approach, which carries the runner section.
  • the runner section has a greater width than the approach.
  • a high wear resistance of the skid segment can be achieved by applying a hard material element, for example a build-up weld, a cemented carbide element, a hard material coating or the like, to the runner section.
  • a hard material element for example a build-up weld, a cemented carbide element, a hard material coating or the like
  • a particularly preferred variant of the invention is such that a clamping element is used which has one or more elastic functional parts.
  • the clamping element With the clamping element, the runner segment can be clamped in a simple manner with the edge protection, the compound can be simply joined and released due to the elasticity of the functional tion parts.
  • the clamping element is held in the region of the plug-in approach, so that it is housed protected from wear.
  • a particularly simple assignment of the clamping element to Kufensegment can be achieved if the plug has a receptacle in the form of a recess or recess into which the clamping element is introduced.
  • the elasticity of the clamping element can also be utilized in order to achieve a tension in the receptacle, so that additional fastening measures can be dispensed with.
  • the plug receptacles are pocket-shaped and open to the underside of the edge protector.
  • a simple production of the edge protector is then possible if it is provided that the edge has comb-like recesses which are at least partially closed to form the receptacles with mutually parallel spaced walls.
  • FIG. 1 shows an edge protector 10 for a road milling machine with a plate-like base part 10.1.
  • This base part 10.1 forms a fastening side 11 for coupling to the road milling machine in the region of a milling box.
  • the edge protector 10 has an edge 12.
  • This edge 12 is provided with recesses, which are arranged spaced from each other via webs 13, so that a comb-like geometry results.
  • walls 16, consisting of sheet metal are used.
  • two walls 16 are used in each recess, which are arranged spaced apart from each other in parallel. In this way, results between the walls 16 and the webs 13, a plug-in receptacle 14, as the FIGS. 2 and 3 illustrate.
  • the walls 16 are welded by welds 17 with the edge 12 of the edge protector 10. In this way, a plurality of spaced from each other in a uniform pitch arranged receptacles 14th created. These plug-in receptacles 14 are used to accommodate Kufensegmenten 30, as example closer in the FIGS. 4 to 9 are shown.
  • the skid segments 30 are constructed substantially similarly in the basic structure. They have a skid portion 36 which is covered on its underside with a hard material element 37. As a hard material element 37 may, for example, be used an order consisting of metal powder. It is also conceivable that is applied to the runner section hard metal elements or a Panzersch dentation. At the runner portion 36, a projection 31 is formed.
  • the lug 31 has a smaller width than the runner section 36 transversely to the running direction L running in the main movement direction of the road milling machine. In this way, on both sides of the approach 31 paragraph-like sections that form contact surfaces 36.1.
  • the projection 31 has two projections 32 projecting on both sides in the running direction L via a plug projection 38.
  • the projections 32 form stop surfaces 33, which pass over rounding transitions 34 in side walls 35.
  • the plug-in approach 38 is limited by two extending in the direction L side surfaces 38.3.
  • the side surfaces 38.3 are parallel to each other.
  • the side surfaces 38.3 go without offset into the projection 31.
  • the insertion projection 38 has two supporting flanks 38.2 which are perpendicular to the side surfaces 38.3 and which are mutually parallel spaced. Each supporting flank 38.2 merges via an insertion centering 38.1 into an end face 38.4.
  • the clamping element 40 has elastic functional parts 42, which are formed predominantly as lamellae, as this FIG. 5 lets recognize. It is also conceivable to use a clamping element which is block-shaped and formed from an elastic material, in which case a part of this block or the whole block forms the functional part with elastic properties.
  • the lamellar functional parts 42 are employed in an arrow-shaped manner with respect to one another and are inclined in the direction of the stub axle defining the central longitudinal axis M of the plug-in extension. As figure 5 can recognize, the clamping element 40, a base member 41, to which the functional parts 42 are integrally formed.
  • a pocket-shaped receptacle 39 is recessed in the form of a recess.
  • the clamping element 40 is inserted with its base part 41 in this receptacle 39, wherein it is supported with the base part 41 on a bottom 39.1 of the receptacle.
  • the clamping element 40 is designed such that also the base part 41 has elastic properties. It can then be pressed with excess into the receptacle 39, so that no additional fastening means are required.
  • the clamping element 40 may also be glued, for example, in the receptacle 39.
  • the functional parts 42 are slightly above the side surface 38.3, like this FIG. 5 lets recognize. The supernatant is in FIG.
  • skid segment 30 For mounting in the FIGS. 4 and 5 shown skid segment 30 in the edge protector 10 according to FIG. 1 the skid segment 30 is first recognized with its plug-in approach 38 to the downwardly open receptacle 14. The Ein Industrieszentrierungen thread 38.1 at the adjacent webs 13, so that the assembly is facilitated. Then, the runner segment 30 is inserted with its web extension 30 in the direction of the central longitudinal axis M in the plug receptacle 14. This can first be done powerless or with little effort until the functional parts 42 come on the inner sides of the walls 16 for engagement. When inserting the runner segment 30, the functional parts 42 must be elastically deformed.
  • the insertion movement of the skid segment 30 into the plug-in receptacle 14 is limited by means of the abutment surfaces 33 of the protrusions 32. These attach themselves to the end faces 15 of the webs 13.
  • the contact surface 36.1 of the runner section 36 is at a short distance from a front-side counter-surface 19 of the walls 16, as this FIG. 3 lets recognize.
  • the face 38.4 is also at a distance from an opposite bottom surface of the plug receptacle 14.
  • the assignment can be selected such that the runner segment 30 with the end face 38.4 is supported on a bottom surface of the plug receptacle 14. Accordingly, then the stop surface 33 is at a small distance to the front side of the webs 13.
  • the stop geometry between the runner segment 30 and the plug receptacle 14 is protected in the plug receptacle 14 housed.
  • the Clamping element 40 may alternatively be accommodated on the base part 10.1, in particular protected in the plug-in receptacle 14.
  • the runner segments 30 with their hard material elements 37 drag over the substrate and are continuously worn away. After reaching the wear limit, the runner segments 30 can be easily replaced.
  • window-like openings 18 are provided in the outside walls 16.
  • a tool 20 can be adjusted with a Austreibdorn 21.
  • the Austreibdorn 21 then supported on the contact surface 36.1 of the runner portion 36.
  • a expelling force can then be introduced vertically downwards into the skid segment 30.
  • the frictional connection between the inside of the wall 16 and the clamping element 14 is then separated by pushing out the runner segment 30. Subsequently, the runner segment 30 can be completely pulled out of the plug receptacle 14 and replaced with a new runner segment 30.
  • FIG. 6 an alternative embodiment variant of a skid segment 30 is shown.
  • the design of this skid segment 30 essentially corresponds to the skid segment 30 according to FIGS FIGS. 4 and 5 , so that reference can be made to avoid repetition of the above statements.
  • the support flanks 38.2 are not parallel to each other, but V-shaped and converge toward the free end of the plug-in projection 38.
  • the webs 13 are preferably designed such that they form adapted angled stop surface areas in the plug-in receptacle 14 toward the lower side Diverge towards the opening. This has the advantage that already after penetration of a small expulsion movement in the direction of the central longitudinal axis M, the support flanks 38.2 out of engagement with the corresponding mating surfaces of the webs 13 reach, so here when expelling no frictional forces arise.
  • FIG. 7 shows, are in the plug-in projection 38 two pocket-shaped receptacles 39 according to the embodiment according to the FIGS. 4 and 5 brought in.
  • the receptacles 39 are mutually offset in the direction of L and the elastic functional parts 42 of the clamping elements 40 are on both sides of the plug-in projection 38 before. In this way, a double-sided jamming of the plug-in projection 38 is achieved in the socket 14.
  • this type of clamping is possible with all the skid segments 30.
  • the skid portion 36 and thus the hard material element 37 is convex.
  • FIGS. 8 and 9 a further embodiment variant of a skid segment 30 is shown. Again, reference is made to avoid repetition with respect to the same reference numerals to the above statements. In the following, only the differences will be explained.
  • the plug-in approach 38 on two opposite support flanks 38.2. These first have surface areas which are connected to the stop surfaces 33 and which are at an angle to each other. These surface areas converge towards the free end of the plug-in extension 38. Following the converging surface areas, convex surface areas of the supporting flank 38.2 are connected without offset. These convex portions of the support flanks 38.2 are flush with one another via a likewise convex insertion centering. Even with this geometry, a precise and simple assignment of the plug-in projection 38 to corresponding mating surfaces of the webs 13 is possible.
  • the clamping element 40 has, as this FIG. 9 shows, a base member 41, on both sides of the lamellar elastic functional parts 42 are connected.
  • the elastic functional parts 42 are again made arrow-shaped for easier insertion of the plug-in projection 38 in the plug-in receptacle 14 and project slightly on both sides over the side surfaces 38.3 of the plug-in projection 38.
  • the Recording 39 is excluded as a breakthrough from the insertion projection 38.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Road Paving Structures (AREA)
  • Connection Of Plates (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (15)

  1. Protection de bord (10) pour une machine à fraiser la chaussée ou machine de traitement du sol similaire, comprenant un rebord (12) et des segments de patin (30), dans laquelle le rebord (12) est conçu pour recevoir les segments de patin (30),
    caractérisée en ce que
    le rebord (12) présente des logements d'enfichage (14) pour la réception des segments de patin (30),
    en ce que le segment de patin (30) présente une section de patin (36), sur laquelle une section de fixation est formée, indirectement ou directement et en ce que la section de fixation est conçue comme un raccord d'enfichage (38).
  2. Protection de bord selon la revendication 1,
    caractérisée en ce que
    au moins une surface de butée (33) est prévue sur le segment de patin, qui s'étend transversalement à l'axe longitudinal intermédiaire du raccord d'enfichage (38) définissant la direction d'enfichage et/ou
    en ce que le raccord d'enfichage (38) présente une butée par laquelle le mouvement d'enfichage peut être délimité.
  3. Protection de bord selon une des revendications 1 ou 2,
    caractérisée en ce que
    le raccord d'enfichage (38) comprend, dans la zone de son extrémité libre, au moins un centrage d'insertion (38.1) formé.
  4. Protection de bord selon une des revendications 1 à 3,
    caractérisée en ce que
    le raccord d'enfichage (38) présente, sur les côtés opposés, des flancs de protection (38.2) qui s'étendent transversalement à la direction d'extension (L) du segment de patin (30).
  5. Protection de bord selon la revendication 4,
    caractérisée en ce que
    les flancs de protection (38.2) présentent des zones de surface qui s'étendent parallèle les unes aux autres ou qui convergent dans la direction d'enfichage du raccord d'enfichage (38).
  6. Protection de bord selon la revendication 4 ou 5,
    caractérisée en ce que
    les flancs de protection (38.2) présentent des zones de surface qui sont formées convexes ou concaves.
  7. Protection de bord selon une des revendications 1 à 6,
    caractérisée en ce que
    le raccord d'enfichage (38) présente, sur les côtés opposés, des surfaces latérales (38.3) s'étendant dans la direction d'extension (L) du segment de patin (30).
  8. Protection de bord selon une des revendications 1 à 7,
    caractérisée en ce que
    le raccord d'enfichage (38) présente une géométrie asymétrique par rapport à un plan transversal intermédiaire s'étendant à travers l'axe longitudinal intermédiaire (M) du raccord d'enfichag et s'étendant transversalement à la direction d'extension (L) du segment de patin (30).
  9. Protection de bord selon une des revendications 1 à 8,
    caractérisée en ce que
    sur le segment de patin (30), au moins une saillie (32) saillante dans la direction d'extension (L) est prévue, qui dépasse dans ou à l'opposé de la direction d'extension (L) au-dessus du raccord d'enfichage (38).
  10. Protection de bord selon une des revendications 1 à 9,
    caractérisée en ce que
    sur le raccord d'enfichage (38), un raccord (31) est raccordé directement ou indirectement, qui porte la section de patin (36), moyennant quoi il est de préférence prévu que la section de patin (36) présente une largeur supérieure à celle du raccord (31).
  11. Protection de bord selon une des revendications 1 à 10,
    caractérisée en ce que
    la section de patin (36) présente un élément en matériau dur (37), par exemple une soudure de superposition, un élément métallique dur, un revêtement en matériau dur ou analogue.
  12. Protection de bord selon une des revendications 1 à 11,
    caractérisée en ce que
    un élément de serrage (40) est utilisé, qui présente une ou plusieurs parties fonctionnelles élastiques (42).
  13. Protection de bord selon la revendication 12,
    caractérisée en ce que
    l'élément de serrage (40) est maintenu dans la zone du raccord d'enfichage (38).
  14. Protection de bord selon une des revendications 12 ou 13,
    caractérisée en ce que
    le raccord d'enfichage (38) présente un logement (39) sous la forme d'une cavité ou d'une encoche, dans lequel l'élément de serrage (40) est introduit.
  15. Protection de bord selon une des revendications 1 à 14,
    caractérisée en ce que
    les logements d'enfichage (14) sont conçus en forme de poches et sont ouverts vers le côté inférieur de la protection de bord (10) et/ou
    en ce que le rebord (12) présente des cavités en forme de chambre, qui sont fermées au moins par sections, pour la formation des logements, avec des parois (18) espacées parallèles les unes aux autres.
EP13157055.8A 2012-04-19 2013-02-27 Protection de bord pour une machine à fraiser la chaussée Not-in-force EP2653612B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012103440.0A DE102012103440B4 (de) 2012-04-19 2012-04-19 Kufensegment für einen Kantenschutz einer Straßenfräsmaschine und Kantenschutz für eine Straßenfräsmaschine

Publications (3)

Publication Number Publication Date
EP2653612A2 EP2653612A2 (fr) 2013-10-23
EP2653612A3 EP2653612A3 (fr) 2014-11-12
EP2653612B1 true EP2653612B1 (fr) 2018-09-05

Family

ID=47900593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13157055.8A Not-in-force EP2653612B1 (fr) 2012-04-19 2013-02-27 Protection de bord pour une machine à fraiser la chaussée

Country Status (10)

Country Link
EP (1) EP2653612B1 (fr)
JP (2) JP5755280B2 (fr)
KR (1) KR101633050B1 (fr)
CN (2) CN203174483U (fr)
AU (1) AU2013201368B2 (fr)
BR (1) BR102013009509A2 (fr)
DE (1) DE102012103440B4 (fr)
RU (1) RU2530803C1 (fr)
SG (1) SG194294A1 (fr)
TW (1) TWI580841B (fr)

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DE102012103440B4 (de) * 2012-04-19 2016-01-21 Wirtgen Gmbh Kufensegment für einen Kantenschutz einer Straßenfräsmaschine und Kantenschutz für eine Straßenfräsmaschine
DE102016123662A1 (de) 2016-12-07 2018-06-07 Wirtgen Gmbh Kufensegment für einen Kantenschutz einer Straßenfräsmaschine und Kantenschutz für eine Straßenfräsmaschine
DE102017116757B4 (de) * 2017-07-25 2020-11-12 Betek Gmbh & Co. Kg Abstreifleiste für ein Abstreifschild einer Straßenfräsmaschine
USD858598S1 (en) 2017-08-25 2019-09-03 Wirtgen Gmbh Part of milling machine

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Also Published As

Publication number Publication date
RU2013115175A (ru) 2014-10-10
JP2015145615A (ja) 2015-08-13
TWI580841B (zh) 2017-05-01
DE102012103440B4 (de) 2016-01-21
SG194294A1 (en) 2013-11-29
AU2013201368A1 (en) 2013-11-07
TW201344011A (zh) 2013-11-01
JP6195862B2 (ja) 2017-09-13
KR101633050B1 (ko) 2016-06-23
AU2013201368B2 (en) 2016-04-14
RU2530803C1 (ru) 2014-10-10
BR102013009509A2 (pt) 2016-01-26
JP5755280B2 (ja) 2015-07-29
KR20130118272A (ko) 2013-10-29
JP2013224577A (ja) 2013-10-31
EP2653612A3 (fr) 2014-11-12
CN203174483U (zh) 2013-09-04
DE102012103440A1 (de) 2013-10-24
CN103374874A (zh) 2013-10-30
CN103374874B (zh) 2016-12-28
EP2653612A2 (fr) 2013-10-23

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