JP2015145615A - Slide segment for edge cover for road cutting machine, and edge cover for road cutting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide segment for an edge cover, which enables easy maintenance, and the edge cover for promoting the easy maintenance.SOLUTION: A slide segment for an edge cover 10 for a road cutting machine or a similar ground surface working machine includes a sliding part in which an attachment part is integrally molded in an indirect or direct manner. The attachment part is formed as an inserting protrusively-provided part. Additionally, the edge cover 10 for the road cutting machine or the similar ground surface working machine includes an edge 12 that is formed to accommodate the slide segment. The edge 12 has an inserting accommodation part 14 for accommodating the slide segment.

Description

  The present invention relates to an edge cover (Kantenschutz) of a road milling machine (Strassenfraesmaschine, hereinafter) or a similar ground processing machine, which has a sliding part whose mounting part is formed indirectly or directly integrally. ) For a sliding segment (Kufensegment).

  Road cutting machines are used for road construction and road construction. The road cutting machine serves to completely or preferably partially remove the existing road pavement. In this configuration, a rotary milling machine that is shielded and accommodated inside the milling box is used. A rotary milling machine is generally equipped with a chisel that engages a roadbed to be operated for removal of a traveling path. Cover elements are used on the sides of the milling box extending in the direction of travel of the road cutting machine. This cover element is referred to as an edge cover. The edge cover covers the rotating milling machine on the side, thereby preventing access to the rotating milling machine during milling on the one hand. On the other hand, the milled material is prevented from being released to the surroundings. Since the edge cover stands on the road surface with the lower sliding skid, the rotary milling machine is completely covered. In addition, the skid skid is pressed against the unworked road pavement that is outside the work area and that follows the rotary milling machine. Correspondingly, therefore, the edge cover forms a corresponding receiving part that prevents removal of the road pavement that continues to the side during the milling process. A sliding skid is made up of sliding body segments that are exposed to predetermined wear, that is, that must be replaced after reaching the wear limit. For this purpose, the slider segment has a mounting part. The sliding segment is screwed to the mounting portion on the side of the edge cover. The screw head of the slider segment is sometimes subjected to abrading erosion by the removed material and then worn away. The screw head can no longer be removed with a predetermined tool. Furthermore, it may happen that the connection surface between the edge cover and the sliding segment is worn away. Thus, the slider segment can no longer be positioned accurately and reproducibly.

  It is an object of the present invention to provide a slide segment for an edge cover that allows for easy maintenance.

  It is a further object of the present invention to provide such an edge cover that facilitates simple maintenance.

  To achieve the above object, according to the present invention, a sliding for an edge cover of a road cutting machine or similar ground processing machine comprising a sliding part in which the mounting part is formed integrally or indirectly directly. The body segment is designed so that the attachment portion is formed as an insertion protrusion.

  Preferably, at least one stopper surface is provided that extends laterally with respect to the central longitudinal axis defining the insertion direction of the insertion protrusion.

  Preferably, the insertion protrusion has a stopper capable of restricting the insertion movement.

  Preferably, the insertion projecting portion is provided with at least one integrally formed introduction centering portion in the region of the free end portion of the insertion projecting portion.

  Preferably, the insertion projecting portion has a supporting side surface extending in the lateral direction relative to the traveling direction of the sliding body segment.

  Preferably, the supporting side surface has a surface region that extends parallel to each other or converges in the insertion direction of the insertion protrusion.

  Preferably, the supporting side surface has a surface region that is integrally formed in a convex shape or a concave shape.

  Preferably, the insertion protrusion has a side surface extending in the traveling direction of the sliding body segment.

  Preferably, the plug-in protrusion is asymmetric with respect to a central cross-section extending through the central longitudinal axis of the plug-in protrusion and extending transversely to the direction of travel of the sliding segment. It has a typical shape.

  Preferably, at least one projecting portion projecting in the traveling direction is provided, and this projecting portion exceeds the insertion projecting portion in the traveling direction or in the direction opposite to the traveling direction.

  Preferably, the insertion projecting portion is followed indirectly or directly by a projecting portion having a sliding portion.

  Preferably, the sliding portion has a larger width than the protruding portion.

  Preferably, the sliding portion has a hard material element, for example, a built-up weld, a hard metal element, a hard material coating, or the like.

  Preferably, a clamping element having one or more elastic functional members is used.

  Preferably, the clamping element is held in the region of the insertion protrusion.

  Preferably, the plug-in projecting part has a receiving part in the form of a cutout or a notch into which the clamping element is inserted.

  Another object is an edge cover for a road cutting machine or similar ground processing machine with an edge formed to receive a slide segment, the edge receiving the slide segment. This is achieved by having an insertion receptacle.

  Preferably, the insertion housing portion is formed in a pocket shape and is open toward the lower surface of the edge cover.

  Preferably, the edge has a notch formed in a comb shape, the notch being at least partially closed with walls spaced apart parallel to each other so as to form a receiving part .

  Preferably, one or more slider segments are provided.

  With the above configuration, the sliding body segment with the insertion projecting portion can be inserted into the insertion housing portion corresponding to the edge cover, so that the sliding body segment can be operated during severe conditions at the construction site. Can be easily replaced. Since the plug-in projecting part is arranged in the plug-in receiving part in the region protected from wear, the reproducible corresponding arrangement of the sliding segment relative to the edge cover is supported.

  At least one stopper extending transversely to the central longitudinal axis of the plug-in projection, which defines the plug-in direction, so that an exact corresponding arrangement of the individual slider segments can be easily ensured A surface may be provided. Therefore, the insertion projecting portion of the sliding body segment can be inserted into the edge cover until the stopper surface restricts the insertion motion to a limited extent.

  Particularly preferably, in this configuration, the insertion protrusion may have a stopper that can limit the insertion movement. Accordingly, the stopper is housed in the region of the insertion projecting portion with wear protection.

  Further, the assembly can be facilitated by providing at least one integrally formed introduction centering portion in the region of the free end portion of the insertion projecting portion.

  When the insertion projecting portion has a support side surface (Stuetzflanke) extending in a direction transverse to the traveling direction of the sliding body segment on the opposite surface, the support by the shape connection in the main force direction during driving use, Can be achieved on the edge cover.

  Particularly preferably, in this configuration, the support side surfaces extend in parallel with each other, or the support side surfaces converge in the insertion direction of the insertion protrusion. Further, in the converging surface area, a tapered geometry of the plug-in projection is provided that facilitates introduction into the plug-in receptacle. Further, according to the alternative configuration of the present invention, the supporting side surface may have a surface region that is formed in a convex shape or a concave shape. The surface region provides a large support surface region (Abtragflaechenbreich) in view of a relatively small surface pressure.

  During driving use, the road cutting machine may move in a direction transverse to the main traveling direction. In this driving state, in order to maintain the fixed position fixing of the sliding body segment, the insertion projecting portion may have a side surface extending in the traveling direction of the sliding body segment on the opposite surface. With this side, the slider segment can be supported by a shape connection on the corresponding opposing surface of the edge cover.

  The road cutting machine frequently moves in the direction opposite to the main traveling direction during operation and use. Thereby, a load situation different from the situation at the time of driving in the main running direction occurs in the sliding body segment. In this configuration, according to yet another configuration of the present invention, so that a load-optimized configuration of the sliding segment can be achieved, the plug-in protrusion is the central longitudinal axis of the plug-in protrusion And has an asymmetric geometry with respect to a central cross section extending transversely to the direction of travel of the slider segment.

  According to yet another possible configuration of the invention, at least one projecting part projecting in the direction of travel may be provided. This protrusion is in the direction of travel or opposite the direction of travel, beyond the plug-in protrusion, the protrusion acts for bridging between the edge cover areas between the individual slider segments and thus A sliding body configuration with as little space as possible is possible.

  The compact construction of the sliding body segment is aided by the fact that the projecting part with the sliding part is connected to the plug-in projecting part indirectly or directly.

  Particularly in this configuration, the sliding portion may have a larger width than the protruding portion. A labyrinth-like overlap of the entrance into the plug-in receptacle can be achieved with the above-mentioned cross-sectional deviation. Thereby, the carrying-in of the dirt to an insertion accommodating part is reduced.

  High wear resistance of the sliding body segment can be achieved by providing the sliding part with a hard material element, eg a hard metal element, such as an overlay weld, a hard metal element, a hard material coating or the like.

  A particularly advantageous configuration of the invention uses a clamping element with one or two elastic functional members. With the clamping element, the slider segment can be easily clamped to the edge cover. In this configuration, the coupling can be easily formed and released based on the elasticity of the functional member. Particularly preferably, the clamping element is held in the region of the plug-in projection and is protected against wear.

  A particularly simple corresponding arrangement of the clamping element with respect to the slider segment can be achieved if the plug-in projection has a receptacle in the form of a cut-out or notch in which the clamping element is inserted. In this configuration, the elasticity of the clamping element may be used in particular for achieving the tightening in the receiving part, so that additional fixing means can be omitted.

  The above object of the present invention with respect to an edge cover for a road cutting machine or similar groundworking machine, with an edge formed to receive the slide segment, is that the edge contains the slide segment. This is achieved by having an insertion receiving part for the purpose. The slide segment can be introduced into the plug-in receptacle simply, preferably without the use of tools. The insertion projecting portion of the sliding body segment is housed in the insertion housing portion while being protected against wear, and the sliding body segment can be reproducibly introduced into the insertion housing portion. This clearly simplifies edge cover maintenance.

  Particularly preferably, the insertion housing part is formed in a pocket shape and is open toward the lower surface of the edge cover. A simple manufacture of the edge cover is possible if the edge has a notch formed in a comb shape. The comb-shaped cutouts are at least partially closed with walls spaced apart in parallel to form a receiving part.

It is a perspective view of the edge cover for road cutting machines. It is detail drawing of the cross section of line II-II shown in FIG. It is sectional drawing of line III-III shown in FIG. It is a perspective view which shows 1st Embodiment of a sliding body segment. FIG. 5 is a cross-sectional view of the sliding body segment shown in FIG. 4 along the extension of the line VV shown in FIG. 4. It is a perspective view which shows 2nd Embodiment of a sliding body segment. It is a side view of the sliding body segment shown in FIG. It is a perspective view which shows 3rd Embodiment of a sliding body segment. It is sectional drawing of the center horizontal plane extended along line IX-IX of the sliding body segment shown in FIG.

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 shows an edge cover 10 for a road cutting machine provided with a base portion 10.1 formed in a plate shape. This base part 10.1 forms a fixed surface 11 for connection to the road cutting machine in the area of the milling box. The edge cover 10 has an edge 12 opposite to the fixed surface 11. The edge 12 is provided with cutouts that are spaced apart from each other via the web 13, resulting in a comb-like geometry. A plurality of wall portions 16 made of a thin metal plate are inserted into a gap formed between the webs 13. In this embodiment, two wall portions 16 are inserted into each cutout portion. These wall portions 16 are spaced apart from each other in parallel. Thus, as shown in FIGS. 2 and 3, the insertion accommodating portion 14 is provided between the wall portion 16 and the web 13. The wall portion 16 is welded to the edge portion 12 of the edge cover 10 via a weld seam joint portion 17. Thus, a plurality of insertion accommodating portions 14 are formed that are spaced apart from each other at equal intervals. These plug receptacles 14 serve, for example, to accommodate the slide segment 30 shown in detail in FIGS. These sliding body segments 30 are substantially similar in basic structure. The sliding body segment 30 has a sliding portion 36, and a hard material element 37 is covered on the lower surface of the sliding portion 36. As the hard material element 37, for example, an outer layer (Auftrag) made of metal powder may be used. It is also possible that the sliding part is provided with a hard metal element or an armored weld (Panzerschweisserung). The protruding portion 31 is integrally formed with the sliding portion 36. In this embodiment, the projecting portion 31 has a smaller width than the sliding portion 36 in the lateral direction with respect to the traveling direction L extending in the main motion direction of the road cutting machine. In this way, stepped portions forming the contact surfaces 36.1 are provided on both sides of the projecting portion 31. The projecting portion 31 has two projecting portions 32 projecting on both sides in the traveling direction L beyond the insertion projecting portion 38. These protrusions 32 form a stopper surface 33 that is transferred to the side wall 35 via the round transfer portion 34.

  The insertion protrusion 38 is defined by two side surfaces 38.3 extending in the running direction L. In this configuration, the side surfaces 38.3 are parallel to each other. The side surface 38.3 shifts to the projecting portion 31 without a step.

  As shown in the embodiment in FIGS. 4 and 5, the plug-in protrusion 38 has two supporting side surfaces 38.2. These supporting side surfaces 38.2 are perpendicular to the side surface 38.3 and extend in parallel with each other. Each supporting side surface 38.2 transitions to the end surface 38.4 via the introduction centering part 38.1.

  A clamping element 40 is attached to the region of the insertion protrusion 38. As can be seen from FIG. 5, the clamp element 40 has an elastic functional member 42 mainly configured as a laminated plate. It is also conceivable to use a clamping element which is formed in the form of a block and is made of an elastic material, part or the whole of this block forming a functional member having elastic properties. The laminated plate-like functional members 42 are adjusted in an arrow shape or leaned against each other, and are inclined with respect to the insertion axis that defines the central longitudinal axis M of the insertion protrusion. As can be seen from FIG. 5, the clamping element 40 has a base portion 41. A functional member 42 is formed integrally with the base portion 41. A pocket-shaped accommodation portion 39 is formed as a recess in the insertion projecting portion 38. A base portion 41 of the clamp element 40 is inserted into the accommodating portion 39. In this embodiment, the clamping element 40 is supported by the base part 41 at the bottom 39.1 of the receiving part. In this embodiment, the clamping element 40 is configured such that the base portion 41 also has elastic properties. In this way, the clamp element 40 can be press-fitted into the accommodating portion 39 with a fastening margin, so that no additional fixing means is required. Alternatively, the clamp element 40 may be affixed to the accommodating portion 39, for example. As can be seen from FIG. 5, the functional member 42 slightly protrudes from the side surface 38.3 in the assembled state. This protrusion amount is indicated by a in FIG. In order to assemble the sliding body segment 30 shown in FIGS. 4 and 5 to the edge cover 10 shown in FIG. 1, first, the insertion projecting portion 38 of the sliding body segment 30 is inserted into the insertion receiving portion 14 opened downward. Applied. In this embodiment, since the introduction centering part 38.1 enters along the adjacent webs 13 (einfaedeln), the assembly is easy. Thus, the insertion projecting portion 38 of the sliding body segment 30 is pushed into the insertion receiving portion 14 with respect to the central longitudinal axis M. This can be done with little or no force required until the functional member 42 engages the inner surface of the wall 16. The functional member 42 needs to be elastically deformed when the sliding body segment 30 is pushed. The insertion movement of the sliding body segment 30 into the insertion housing part 14 is limited by the stopper surface 33 of the protrusion 32. These protrusions are in contact with the end face 15 of the web 13. In the assembled state, as can be seen from FIG. 3, the contact surface 36.1 of the sliding portion 36 is slightly spaced from the facing surface 19 on the end surface side of the wall portion 16. The end surface 38.4 is similarly spaced from the opposing bottom surface of the plug-in housing portion 14. Alternatively, the corresponding arrangement can be selected such that the slider segment 30 is supported on the bottom surface of the plug-in receptacle 14 with the end face 38.4. Accordingly, the stopper surface 33 has a small interval with respect to the end surface of the web 13. In this embodiment, the collision geometry (shape) between the sliding body segment 30 and the insertion accommodating portion 14 is provided so as to be shielded within the insertion accommodating portion 14. Alternatively, the clamping element 40 may be provided in the insertion housing 14 in a particularly shielded manner in the base part 10.1.

  During operation use, the rigid material element 37 of the slider segment 30 moves on the roadbed and wears continuously. After reaching the wear limit, the slider segment 30 can be easily replaced. A window-like opening 18 is provided in the outer wall 16 for removal. A tool 20 with a removal spindle (Austreibdorn) 21 in these openings 18 can be fitted. In this embodiment, the removal spindle 21 is supported on the abutment surface 36.1 of the sliding part 36. The removal force can be supplied to the sliding body segment 30 vertically downward by the impact of the hammer. In this embodiment, the frictional connection between the inner surface of the wall portion 16 and the clamp element 40 is released by the advancement of the sliding body segment 30. The sliding body segment 30 can then be completely withdrawn from the insertion receptacle 14 and replaced with a new sliding body segment 30.

  FIG. 6 shows an alternative embodiment of the slider segment 30. Since the form of the sliding body segment 30 substantially corresponds to the sliding body segment 30 shown in FIGS. 4 and 5, the above embodiment can be referred to in order to avoid repetition. Unlike the sliding body segment 30 shown in FIGS. 4 and 5, the support side surfaces 38.2 are not parallel to each other, but are adjusted to be V-shaped toward the free end of the plug-in projection 38. Have converged. Correspondingly, the web 13 is preferably configured to form a stop surface area with an appropriate angle. The stopper surface region is separated from the insertion housing portion 14 toward the opening on the lower surface side. This provides a conical support side pair between the web 13 and the slider segment 30. This is because, after a slight removal movement is introduced in the direction of the central longitudinal axis M, the support side 38.2 is already disengaged from the corresponding opposing surface of the web 13, so that no frictional force is generated during removal. Has the advantage of.

  As shown in FIG. 7, two pocket-shaped accommodation portions 39 corresponding to the embodiment shown in FIGS. In this embodiment, the accommodating portions 39 are arranged so as to be shifted from each other in the traveling direction L, and the elastic functional member 42 of the clamp element 40 protrudes on both sides of the insertion projecting portion 38. In this manner, clamping on both sides of the insertion projecting portion 38 is achieved in the insertion accommodating portion 14. Of course, this type of clamping is possible on any slider segment 30. Unlike the sliding body segment 30 shown in FIGS. 4 and 5, the sliding portion 36 and thus the hard material element 37 are formed in a convex shape. As shown in FIG. 1, the sliding body segment 30 is preferably disposed at the front end of the edge cover 10, for example, and thus forms an inclined climbing shape (Auflaufgeometrie).

  FIGS. 8 and 9 show another embodiment of the slider segment 30. Also in this embodiment, to avoid repetition, refer to the above embodiment for the same reference numerals. Only the differences will be described below. As shown in FIG. 8, the insertion protrusion 38 has two supporting side surfaces 38.2 facing each other. These support side surfaces 38.2 first have a surface area that follows the stopper surface 33 and that is angled with respect to each other. These surface regions converge toward the free end portion of the insertion projecting portion 38. Following the converging surface region is a stepless, convex surface region of the supporting side surface 38.2. The convex regions of the support side surface 38.2 are aligned with each other and shifted to each other via the convex introduction centering portion. With this shape, a simple corresponding arrangement in which the insertion projecting portion 38 is adapted to the corresponding facing surface of the web 13 can be realized.

  As shown in FIG. 9, the clamp element 40 has a base portion 41. Laminated plate-like elastic functional members 42 are connected to both sides of the base portion 41. The elastic functional member 42 is also adjusted in the shape of an arrow for easy introduction of the insertion projecting portion 38 into the insertion receiving portion 14, and slightly protrudes from the side surface 38.3 of the insertion projecting portion 38 on both sides. Yes. The accommodating part 39 is cut out from the insertion protrusion part 38 as a penetration part. When the insertion projecting portion 38 is introduced into the insertion accommodating portion 14 of the edge cover 10, the functional member 42 slides along the inner surfaces of both wall portions 16 and is deformed there.

  DESCRIPTION OF SYMBOLS 10 Edge cover, 10.1 Base part, 11 Fixing surface, 12 Edge part, 13 Web, 14 Insertion accommodating part, 15 End surface, 16 Wall part, 17 Welding seam joint part, 18 Opening, 19 Opposing surface, 20 Tool, 21 Removal spindle, 30 Slider segment, 31 Projection, 32 Projection, 33 Stopper surface, 34 Round transition, 35 Side wall, 36 Slider segment, 36.1 Abutment surface, 37 Hard material element, 38 Insertion projection Part, 38.1 introduction centering part, 38.2 support side face, 38.3 side face, 38.4 end face, 39 receiving part, 39.1 bottom part, 40 clamp element, 41 base part, 42 functional member, L traveling direction, M central longitudinal axis

Claims (20)

A slide segment for an edge cover (10) of a road cutting machine or similar ground processing machine, wherein the attachment part comprises a sliding part (36) formed indirectly or directly integrally,
Slider segment, characterized in that the mounting part is formed as a plug-in projection (38).   The at least one stop surface (33) extending in a direction transverse to a central longitudinal axis defining the insertion direction of the insertion protrusion (38) is provided. Sliding body segment.   3. A sliding body segment according to claim 1 or 2, characterized in that the insertion protrusion (38) has a stopper which can limit the insertion movement.   The insertion protrusion (38) is provided with at least one integrally formed introduction centering portion (38.1) in the region of the free end of the insertion protrusion (38). The sliding body segment according to any one of claims 1 to 3.   The insertion protrusion (38) has a support side surface (38.2) extending in a transverse direction with respect to a traveling direction (L) of the sliding body segment (30). The sliding body segment of any one of 1-4.   6. Sliding according to claim 5, characterized in that the supporting side surface (38.2) has a surface area extending parallel to each other or converging in the insertion direction of the insertion protrusion (38). Body segment.   7. A sliding segment according to claim 5 or 6, characterized in that the supporting side surface (38.2) has a surface area which is integrally formed in a convex or concave shape.   The plug insertion projecting portion (38) has a side surface (38.3) extending in the running direction (L) of the sliding body segment (30) relative to each other. A sliding body segment according to claim 1.   The insertion protrusion (38) extends through the central longitudinal axis (M) of the insertion protrusion and extends in a direction transverse to the travel direction (L) of the sliding body segment (30). 9. The sliding body segment according to claim 1, wherein the sliding body segment has an asymmetric shape with respect to the central cross section.   There is provided at least one projecting portion (32) projecting in the traveling direction (L), the projecting portion (32) in the traveling direction (L) or in the direction opposite to the traveling direction (L). 10. Slider segment according to any one of claims 1 to 9, characterized in that it exceeds the plug-in projection (38).   11. A projection as claimed in claim 1, characterized in that the insertion protrusion (38) is followed indirectly or directly by a protrusion (31) having the sliding part (36). The sliding body segment according to claim 1.   11. A sliding body segment according to claim 10, characterized in that the sliding part (36) has a larger width than the projecting part (31).   13. The sliding part (36) comprises a hard material element (37), for example a build-up weld, a hard metal element, a hard material coating, etc. Sliding body segment.   14. Slider segment according to any one of the preceding claims, characterized in that a clamping element (40) having one or more elastic functional members (42) is used.   15. Slider segment according to claim 14, characterized in that the clamping element (40) is held in the region of the plug-in projection (38).   16. Sliding according to claim 14 or 15, characterized in that the plug-in projecting part (38) has a receiving part (39) in the form of a cut-out or notch into which the clamping element (40) is inserted. Body segment. An edge cover (10) for a road cutting machine or similar ground processing machine with an edge (12) configured to receive a sliding body segment (30),
Edge cover, characterized in that the edge (12) has a plug receiving part (14) for receiving the sliding segment (30).   18. The edge cover according to claim 17, characterized in that the insertion receiving part (14) is formed in a pocket shape and is open toward the lower surface of the edge cover (10).   The edge (12) has a notch formed in a comb shape, and the notch is at least partly provided with wall portions (16) spaced apart in parallel to each other so as to form the accommodating portion. 19. An edge cover according to claim 17 or 18, characterized in that the edge cover is closed.   20. An edge cover according to any one of claims 17 to 19, comprising one or more sliding body segments (30) according to any one of claims 1 to 16.

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