EP2789747A1 - Machine de compaction d'un sol - Google Patents

Machine de compaction d'un sol Download PDF

Info

Publication number
EP2789747A1
EP2789747A1 EP14001097.6A EP14001097A EP2789747A1 EP 2789747 A1 EP2789747 A1 EP 2789747A1 EP 14001097 A EP14001097 A EP 14001097A EP 2789747 A1 EP2789747 A1 EP 2789747A1
Authority
EP
European Patent Office
Prior art keywords
nut
bandage
screw
recess
fastening nut
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
EP14001097.6A
Other languages
German (de)
English (en)
Other versions
EP2789747B1 (fr
Inventor
Manfred Darscheid
Werner Grings
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.)
Bomag GmbH and Co OHG
Original Assignee
Bomag GmbH and Co OHG
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 Bomag GmbH and Co OHG filed Critical Bomag GmbH and Co OHG
Publication of EP2789747A1 publication Critical patent/EP2789747A1/fr
Application granted granted Critical
Publication of EP2789747B1 publication Critical patent/EP2789747B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
    • E02D3/039—Slope rollers

Definitions

  • the invention relates to a construction machine for soil compaction, in particular a compactor, a bandage casing segment and a padfoot of a Budapeststbaren on a bandage body, segmented compression jacket.
  • Construction machinery for soil compaction or soil compaction machines are used wherever an increase in the density of the soil substrate is desired. This is the case, for example, regularly in the road, path and train construction, this list is by no means to be understood as limiting. Often, such construction machines are designed as rollers, the essential feature of which lies in at least one existing bandage or compaction bandage, via which the soil compaction is achieved. Such soil compaction machines with at least one bandage are known in the art. A subgroup of this soil compaction machines are so-called compactors, whose essential feature lies in their equipment with a compression bandage and pneumatic tires. The basic structure of such a compactor is for example in the WO 2012 116 812 A2 disclosed. In particular, compactors are often used specifically for soil compaction.
  • Schaffuß or padfoot bandages are also known in the prior art. These are characterized by the over the outer shell of the bandage arranged compression bumps ("stamp feet"), which protrude at least partially in the radial direction of the outer circumferential surface of the compression bandage.
  • This type of compression bandages are known in the art, for example from the DE 197 11 649 A1 ,
  • sheath segments can be mounted around the outer sheath of the smooth bandage, which in turn stamps on its outside exhibit. By attaching and removing this at least one sheath segment can thus be changed between the two modes of operation "smooth bandage" and "padfoot bandage".
  • Such a construction machine for soil compaction thus comprises at least one compression bandage with a bandage base body and at least one mounted on the outer circumferential surface of the bandage body shell shell segment with a connecting device.
  • the bandage main body particularly designates the entirety of the smooth bandage and has a substantially cylindrical shape with a circumferential outer circumferential surface.
  • the essential function of the connecting device is to achieve the attachment of at least one shell segment per se.
  • further connecting devices may be provided which, for example, allow direct attachment, for example screwing of the at least one jacket segment to the bandage base body.
  • the at least one jacket segment is thus essentially placed on the outer jacket of the bandage base body.
  • flexible sheath segments it is basically possible that even a single sheath segment is wrapped around the bandage base body.
  • shroud segments which effect in their entirety an outer sheath casing of the bandage base body.
  • Essential elements of the connecting device are two retaining devices arranged opposite one another in the circumferential direction of the bandage base body, which are spaced apart from one another by a segment gap.
  • the holding devices are further arranged opposite one another in the circumferential direction of the bandage base body.
  • the circumferential direction is the direction around the outer circumference around the rotation axis.
  • the connecting device further comprises a connecting screw extending across the segment gap between the two holding devices. This connecting screw has a screw head and a screw shank, on whose end facing away from the screw head, in particular an external thread is provided.
  • the head holding device comprises a fferably arranged on the screw head side (also referred to below as “head holding device”).
  • the head holding device comprises a ffermannausnaturalung which is provided for receiving the screw head in the assembled state of the at least one shell segment.
  • the counterpart to the head holding device forms the other holding device (hereinafter also called “nut holding device”), which has a ffermutterausnaturalung for a fastening nut.
  • the Recesses are basically characterized in that they constitute in the holding means an opening extending inwardly from its outer surface. From the two recesses, specifically the directionalkopfausEnglishung and the ringmutterausEnglishung, starting, the connecting device further comprises in each case in the direction of the respective opposite holding means has a through hole.
  • the through-hole is provided so that the connecting screw, specifically the shank of the connecting screw, is at least partially guided by the one holding device to the other holding device through it, so that overall the screw establishes a connection between the two holding devices.
  • the through-holes have a diameter which is slightly larger than the diameter of the screw shaft but significantly smaller than the diameter of the fastening nut and the screw head.
  • the screw head and the fastening nut are thus ideally in the mounted state at the foot or bottom of the nut recess or sterkopfaus fundamentalung, in particular the entry into the respective through hole, so that when tightening the screw clamping force between the two holding means of the connecting device is obtained.
  • the object of the invention is therefore to provide a construction machine for soil compaction, in which the assembly of at least one shell segment is simplified and in particular the connection device can be solved after a labor without destructive measures again.
  • the object is achieved with a construction machine for soil compaction, in particular a compactor, a shell segment for use with a connecting device and a padfoot one aufmontierbaren on a bandage body and segmented formed compression jacket according to the independent claims. Preferred developments are specified in the dependent claims.
  • An essential basic idea of the invention is that the fastening nut is received in a rotationally secured manner in the screw nut recess.
  • the ffermutteraus Firstung on a at least partially in the axial direction of the connecting screw extending anti-rotation area, which is provided for at least partially receiving the mounting nut.
  • the axial direction of the connecting screw is the longitudinal axis of the screw shaft and thus extends over the segment gap away from the head holding device towards the nut holding device.
  • An anti-rotation region is understood to mean a region within the screw-recess, which, in cooperation with the fastening nut, effects an anti-rotation lock of the fastening nut so that it can not rotate about the longitudinal axis or the screw-in and anti-clockwise axis.
  • the anti-rotation region for example, form-fitting surfaces which extend at least partially in the axial direction and to which an at least partially positive engagement system of the fastening nut is possible.
  • the anti-rotation region can additionally or alternatively also be designed as a frictional engagement region, by correspondingly achieving a frictional locking against rotation between the screw-head recess and the fastening nut around the mounted state.
  • the fastening nut is formed in such a way that it partially in this anti-rotation region partially positive and / or frictionally rests to obtain an anti-rotation in the assembled state of at least one Bandagenmantelsegments.
  • the connecting screw can be screwed into the fastening nut, without the fastening nut has to be secured separately from, for example, another fitter. Rather, the fastening nut is secured against rotation by the specially coordinated design of the screw nut recess and the fastening nut in the anti-rotation region.
  • the anti-rotation region it is expediently provided for the formation of the anti-rotation region, that this, seen in the axial direction of the connecting screw, is in the assembled state at the level of the fastening nut in order to be able to prevent the fastening nut from rotating during the assembly and disassembly process.
  • the anti-rotation region from the bottom of ffermutterausEnglishung starting in the axial direction of the connecting screw away in the direction of the receiving opening for the nut extends out.
  • An essential feature of this embodiment is thus the outgoing from the bottom of the ffermutterausnaturalung training of anti-rotation area. This ensures that the mounting nut in the assembled state in the anti-rotation area in any case is. Accordingly, relatively easily be changed between different longitudinal extents of the fastening nut in the axial direction of the connecting screw.
  • the mantle segments specified are used in particular in so-called padfoot bandages. It has now been found that the formation of the connecting device in such a way that the holding devices are formed in the radial direction by the lateral surface of the at least one Bandagenmantelsegments outwardly protruding elevations and in particular stamp feet, is particularly preferred.
  • the stamp feet project radially from the outer surface. As a result, a component is obtained, via which a guidance of the connecting screw outside the outer circumferential surface is possible.
  • the design of the fastening nut with a knurling which is at least partially arranged in the outer peripheral region and has a form-fitting and / or frictionally engaged manner in the anti-rotation region of the screw nut recess has proved to be particularly preferred.
  • knurling is understood in the present case obtained by knurling structuring, such as grooves or in particular intersecting right and left running spirals.
  • Knurling has the advantage that on the one hand it can be obtained comparatively easily and on the other hand it enables optimal frictional and / or positive locking by partial deformation during the screwing in of the connecting screw into the fastening nut.
  • the knurling or the outer circumference of the fastening nut optimally adapts to the anti-rotation region in the screw nut recess, so that a particularly stable positive and / or frictional engagement is obtained by the interference fit obtained.
  • the fastening nut can also be designed at least partially as a polygon, in particular as a square.
  • a polygon is generally characterized by the presence of several edges in the outer peripheral region transverse to the axial direction of the internal thread.
  • Particularly suitable here are external square or external hexagonal fastening nuts. Accordingly, in these embodiments, the anti-rotation region of the ffermutterausEnglishung is at least partially formed for positive reception of the polygon and thus has a polygonal complementary peripheral structure in the anti-rotation area.
  • An anti-rotation locking is obtained in particular when the positive locking areas between the fastening nut and the nut recess in the rotation locking area in the radial direction to the screw axis of the connecting screw in a plane perpendicular to this axis are spaced differently.
  • Both the ffermutterausnaturalung and the ringkopfausnaturalung are often comparatively spacious designed to allow, especially on the part of the screw head, the introduction of the screw head in the outer peripheral region encompassing tools for mounting and dismounting. Due to the inventive design of the ffermutterausappelung a corresponding introduction of a counter and / or sterwerkmaschinees in the ffermutterausappelung is no longer necessary. Already therefore, the nut recess can be made smaller compared to the prior art. In order to prevent the penetration of dirt into this recess as possible, it is particularly preferably provided that the fastening nut is formed in such a way that it terminates substantially flush with the outer surface of the nut holding device to the outside of the stermutterausappelung.
  • the fastening nut is thus formed so that it forms a kind of cover to the outside and in this way prevents the ingress of dirt into the ffermutterausappelung inside.
  • Substantially flush is to be understood as meaning that, of course, a comparatively small minimum step inwards or outwards to the screw nut recess is likewise encompassed by the invention.
  • the fastening nut and the connecting bolt are formed to each other in such a way that the connecting screw does not protrude to the outside of the fastening nut. It is optimal, however, if the internal thread of the fastening nut is formed in a blind hole.
  • a blind hole is a hole in the fastening nut which does not completely penetrate it in the axial direction of the bore. To the connecting screw side facing away from the fastening nut is thus formed closed.
  • the fastening nut is thus formed in the manner of a cap nut. Also by this measure, a protection of the threaded portion is obtained from both the fastening nut and the connecting screw.
  • a seal in particular a sealing ring, is arranged in the entry of the through-bore.
  • the mother holding device is thus additionally sealed by the head holding device side facing out, so that the penetration of dirt over the segment gap in the through hole and ultimately in the ffermutterausappelung is largely prevented.
  • a seal can be provided in accordance with complementary or alternatively also for the through hole on the side of the head holding device.
  • bandage casing segment for use with a connection device as described above.
  • the bandage casing is designed so that a total of three bandage casing segments allow a circumferential sheathing of the bandage base body.
  • the three bandage segments are also ideally constructed identical and thus each cover a cylinder jacket surface in the range of 120 °.
  • a padfoot of a segmented compression jacket which can be mounted on a bandage base body and has at least one bandage casing segment. Also for the specific embodiment of the padfoot according to the invention, the entire above disclosure is referred to.
  • the padfoot comprises a padfoot base body with two padfoot halves which are detachably connected to one another by a connecting device comprising a connecting screw and a fastening nut, wherein in one padfoot half (corresponding to the head holder) a screw-head recess and in the other padfoot half (corresponding to the nut holder) a screw nut recess is present, each having one of the recess in the direction of the other Stampffußhconnect extending through bore through which the connecting screw is guided.
  • a connecting device comprising a connecting screw and a fastening nut
  • the massive stamp foot body in the connection area consists in each case of two stamp foot basic bodies is constructed.
  • the halves can thus be different in size.
  • the ffermutterausEnglishung in one half of the padfoot has a extending in the axial direction of the connecting screw anti-rotation region for at least partially receiving the mounting nut, wherein the fastening nut is formed in such a way that they at least partially form and / or in this anti-rotation area frictionally engaged.
  • Essential elements of a trained as a compactor 1 self-propelled soil compaction machine are in the present embodiment, a machine frame 2, a drive motor 3, a compression bandage 4, a rubber 5 and a cab 6.
  • the machine frame 2 is designed as articulated machine frame with a bending steering 7, which of course not articulated compactors are included.
  • the compactor 1 it is provided, for example, in particular for Erdverdichtungs than that in Fig. 1 To complete as a smooth bandage bandage 4 with a Stampffußummantelung.
  • the construction and operating principle of this Stampffußummantelung is in the FIGS. 2a and 2b specified.
  • the padfoot casing forms a cylindrical casing M resting on the outer casing surface AM of the smooth bandage 4, which is constructed from the total of three bandage casing segments 8a, 8b and 8c.
  • the bandage casing segments 8a, 8b and 8c are thus shell elements, which are distributed around the circumference of the bandage 4 and each extend over an angular range of 120 ° about the outer circumferential surface AM of the smooth bandage 4.
  • stamp feet 9 are arranged distributed in the radial direction to the axis of rotation R of the bandage 4 to the outside project out.
  • the stamp feet 9 are roughly formed in the form of capped pyramidal projections. The vast majority of stamp feet 9 are formed as a solid protruding body.
  • a plurality of connecting devices 10 are now provided which are arranged in the transition between two of the bandage casing segments 8a to 8c to each other across the width B of the bandage 4 side by side.
  • the concrete structure of the connecting devices 10 is explained in more detail in the following figures.
  • the connecting devices 10 each include a mutually spaced over a segment gap 11 in the circumferential direction U of the bandage 4 arranged head holding device 12 and nut holding device 13. Details arise for this purpose, for example, from the in FIG. 3 enlarged detail A shown FIG. 2a , The head holding device 12 and the nut holding device 13 are arranged in the circumferential direction U of the bandage 4 opposite one another.
  • the essential elements of the connecting device 10 are, in addition to the head holding device 12 and the nut holding device 13, a connecting screw 14 and a fastening nut 15.
  • the connecting screw 14 has a screw head 16 and an adjoining screw shank 17, which in its end remote from the screw head 16 an external thread 18th has (in FIG. 4 not specified).
  • a washer 26 is provided.
  • the fastening nut 15 comprises a hole 19 with an internal thread and a knurled region 20, whose task and function will be described in more detail below.
  • a fferkopfaus Principleung 21 present, which is designed to receive the screw head 16.
  • FIG. 4 is thus an exploded view of the connecting device 10th
  • FIG. 5 shows a longitudinal section along the direction of rotation U and transverse to the axis of rotation R by the connecting device 10 in the assembled state. It is essential that the mounting nut 15 in the mounted state of the connecting device 10 with its knurling 20 in a rotation locking area 25 inside the nut recess 22 form and frictionally applied and thereby rotationally secured about the longitudinal axis L of the connecting screw 14.
  • the anti-rotation thus takes place directly between the mounting nut 15 and the nut holding device 13, specifically on the anti-rotation area 25, so that no additional, for example via a corresponding tool, anti-rotation measure is required for mounting and dismounting the connection between the connecting screw 14 and the fastening nut.
  • the anti-rotation region 25 extends from the foot region 27 of the nut recess 22, which represents the passage of the nut recess 22 to the through hole 24, in the direction of the longitudinal axis L to the outlet of the nut recess 22.
  • the tightening or tightening force between the holding devices 12 and 13 of the connecting device 10 occurring through the screw connection between the connecting screw 14 and the fastening nut 15 when tightening the connecting screw 14 is achieved by connecting the connecting screw 14 with its screw head or via the washer at the bottom of the head recess 21 rests on the through hole 23 and on the opposite side, the fastening nut 15 rests on the bottom of the nut recess 22 around the through hole 24, so that through these investment areas the tightening force of the screw connection is transferred to the holding means 12 and 13 and thus to the respective bandage casing segments.
  • the bandage casing segments are also partially connected directly to the bandage 4, for example via separate connection devices 30 between the respective casing segment and the bandage 4.
  • the essential advantage of the connecting device 10 is thus that over the anti-rotation region 25 and the partially positive and / or frictional engagement of the fastening nut 15 in this area, a rotational movement of the fastening nut 15 is prevented by the nut recess 22 itself.
  • a further essential aspect in the design of the connecting device 10 is the formation of the internal thread of the fastening nut 15 in a blind hole 28.
  • the fastening nut 15 is thus formed as a cap nut and thus shields the connecting region between the connecting screw 14 and the fastening nut 15 to the output of the nut recess 22 down. This prevents dirt from entering the threaded areas from this side.
  • a sealing ring 29 may further be provided, which seals the entry region of the connecting screw 14 in the through hole 24 in the nut holding device 13 to the outside and also prevents dirt entry there.
  • FIG. 6 a further alternative embodiment of the connecting device 10 is indicated, wherein the essential difference lies in the design of the fastening nut 15. This fills almost the entire inner region of the nut recess 22 and closes outwardly in the region of the inlet opening in the nut recess 22 almost flush with the outer surface of the nut holding device 13 from. In this way, an almost closed and substantially smooth surface is obtained over the region of the nut recess 22, or the fastening nut 15 closes off the nut recess 22 toward the outside, so that the dirt entry into the nut recess 22 is considerably reduced.
  • the fastening nut is in FIG. 6 formed as a square and is positively in the anti-rotation region 25 on the inner wall of the nut recess 22 at.
  • FIGS. 3 to 6 illustrate, moreover, that the head holding device 12 and the nut holding device 13 are formed on the whole in accordance with a padfoot 9 and also act accordingly in labor input.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Plates (AREA)
EP14001097.6A 2013-04-12 2014-03-25 Machine de compaction d' un sol Active EP2789747B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013006321.3A DE102013006321A1 (de) 2013-04-12 2013-04-12 Baumaschine zur Bodenverdichtung, insbesondere Walzenzug, Bandagenmantelsegment sowie Stampffuß

Publications (2)

Publication Number Publication Date
EP2789747A1 true EP2789747A1 (fr) 2014-10-15
EP2789747B1 EP2789747B1 (fr) 2018-05-02

Family

ID=50396840

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14001097.6A Active EP2789747B1 (fr) 2013-04-12 2014-03-25 Machine de compaction d' un sol

Country Status (2)

Country Link
EP (1) EP2789747B1 (fr)
DE (1) DE102013006321A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111877097A (zh) * 2016-04-21 2020-11-03 哈姆股份公司 压路机
CN114059520A (zh) * 2020-08-03 2022-02-18 哈姆股份公司 用于地面整修机的地面整修辊

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017129932A1 (de) 2017-12-14 2019-06-19 Hamm Ag Bodenbearbeitungswalze
DE102020120381A1 (de) 2020-08-03 2022-02-03 Hamm Ag Bodenbearbeitungswalzensystem für eine Bodenbearbeitungsmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807001A1 (de) * 1988-03-01 1989-09-14 Hubert Combe Vorrichtung zur verbindung von zwei werkstuecken
DE19711649A1 (de) 1997-03-20 1998-09-24 Lobbe Xenex Gmbh Verdichtungsvorrichtung
WO2012116812A2 (fr) 2011-03-01 2012-09-07 Bomag Gmbh Dispositif de compactage du sol et procédé de remise sur rails d'un dispositif de compactage du sol

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1853591U (de) * 1962-01-31 1962-06-14 Henschel Werke G M B H Auf stahlbandagen von strassenglattwalzen anbringbarer ring.
DE2236607A1 (de) * 1972-07-26 1974-02-07 Rheinstahl Ag Hanomag Baumasch Verdichterrad fuer boden, muell, schrott od. dgl. verdichtende fahrzeuge
CH681095A5 (en) * 1990-06-29 1993-01-15 Michel Federspiel Ice breaker device for roads and pavements - consists of ribbed jacket, mounted on roller of road vehicle
US5511901A (en) * 1994-10-25 1996-04-30 Ingersoll-Rand Company Removable padfoot shell conversion device
WO1996028613A1 (fr) * 1995-03-15 1996-09-19 Caron Compactor Company Roues ameliorees pour postes de transfert

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3807001A1 (de) * 1988-03-01 1989-09-14 Hubert Combe Vorrichtung zur verbindung von zwei werkstuecken
DE19711649A1 (de) 1997-03-20 1998-09-24 Lobbe Xenex Gmbh Verdichtungsvorrichtung
WO2012116812A2 (fr) 2011-03-01 2012-09-07 Bomag Gmbh Dispositif de compactage du sol et procédé de remise sur rails d'un dispositif de compactage du sol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111877097A (zh) * 2016-04-21 2020-11-03 哈姆股份公司 压路机
CN114059520A (zh) * 2020-08-03 2022-02-18 哈姆股份公司 用于地面整修机的地面整修辊

Also Published As

Publication number Publication date
EP2789747B1 (fr) 2018-05-02
DE102013006321A1 (de) 2014-10-16

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