EP4170096A1 - Walzenwerkzeug für eine bodenbearbeitungswalze - Google Patents

Walzenwerkzeug für eine bodenbearbeitungswalze Download PDF

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Publication number
EP4170096A1
EP4170096A1 EP22196447.1A EP22196447A EP4170096A1 EP 4170096 A1 EP4170096 A1 EP 4170096A1 EP 22196447 A EP22196447 A EP 22196447A EP 4170096 A1 EP4170096 A1 EP 4170096A1
Authority
EP
European Patent Office
Prior art keywords
clamping
tool
roller
holder
counter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22196447.1A
Other languages
German (de)
English (en)
French (fr)
Inventor
Matthias Meier
Günter Rath
Johannes Malzer
Stefan Bäuml
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.)
Hamm AG
Original Assignee
Hamm AG
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 Hamm AG filed Critical Hamm AG
Publication of EP4170096A1 publication Critical patent/EP4170096A1/de
Pending legal-status Critical Current

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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
    • E02D3/0265—Wheels specially adapted therefor; Cleats for said wheels
    • 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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/236—Construction of the rolling elements, e.g. surface configuration, rolling surface formed by endless track
    • 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
    • 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
    • E02D3/032—Trench rollers

Definitions

  • the present invention relates to a roller tool for a soil tillage roller of a soil tillage machine.
  • a roller tool for a soil-cultivating roller which includes a quick-change holder fixed with its attachment area by welding to an outer peripheral surface of a roller shell of a soil-cultivating roller.
  • a tool holder opening into which a changing tool shank of a tool designed as a chisel, for example, is inserted by moving it in the direction of a longitudinal axis of the tool holder opening and locked therein by latching.
  • the changing tool can be pressed out of the changing tool holder opening by means of a tool that is to be inserted through a lateral opening in the changing tool holder part and positioned behind the changing tool shank.
  • closing elements are inserted from both sides into lateral openings provided on the interchangeable tool holder, which on the one hand close the lateral openings provided in the interchangeable tool holder against the ingress of dirt and on the other hand engage with the interchangeable tool shaft and thereby lock the interchangeable tool on the interchangeable tool holder .
  • the object of the present invention is to provide a roller tool for a soil tillage roller of a soil tillage machine, in which a change tool can be reliably fixed to a change holder and can be easily detached from the change holder even after a long period of operation.
  • both the process for releasably fixing a change holder on a tool carrier and the process for removing a change holder can be carried out in a simple manner from a tool carrier merely by positioning the clamping member in a clamping state that produces the clamping interaction or by removing it from this state.
  • the change holder clamping area on the tool carrier can comprise a tool carrier clamping recess, the tool carrier clamping recess being delimited by a first clamping surface and a second clamping surface opposite the first clamping surface, and the change holder counter-clamping area on the change holder can have a Tool holder clamping recess to be positioned in an engaging manner, wherein a first counter-clamping surface to be brought into contact with the first clamping surface in order to generate the clamping interaction is provided on the change-holder clamping projection, and wherein on the clamping element there is a counter-clamping surface for generating the clamping interaction second counter-clamping surface to be brought into contact with the second clamping surface is provided.
  • first clamping surface and the second clamping surface are inclined towards one another in a direction away from the connection area, and/or that the first clamping surface and the second clamping surface are inclined towards one another in a direction orthogonal to the direction away from the connection area, and/or that the first clamping surface, the second clamping surface, the first counter-clamping surface and the second counter-clamping surface are substantially uncurved.
  • a third clamping surface can be provided on the changing tool shank, and a third counter-clamping surface to be brought into contact with the third clamping surface to generate the clamping interaction can be provided on the clamping member.
  • the interchangeable tool is also included in the clamping interaction, so that both an interchangeable tool holder can be releasably fixed to a tool carrier by generating the clamping interaction, and an interchangeable tool involved in this clamping interaction can be fixed to the interchangeable tool holder and thus also to the tool carrier can be releasably determined.
  • a change tool clamping recess which is open essentially transversely to the longitudinal axis of the shank and provides the third clamping surface can be provided on the change tool shank.
  • the third clamping surface can be concavely curved, for example, and the third counter-clamping surface can be convexly curved, complementary to the third clamping surface.
  • the clamping element In order to be able to bring the clamping element into clamping interaction with the various system areas to be clamped on the one hand and to be able to position it stably on the change holder on the other hand, it is proposed that the clamping element have a clamping element shaft that is elongated in the direction of a longitudinal axis of the clamping element and, for example, a clamping element head, and that the clamping element shaft in the direction the longitudinal axis of the clamping element, for example away from the head of the clamping element, is designed to taper at least in certain areas.
  • the convexly curved third counter-clamping surface can essentially have the shape of a peripheral section of a truncated cone to provide the structure of the clamping element shaft that tapers in the direction of the longitudinal axis of the shaft.
  • a clamping element passage opening and a fastening element passage opening opposite the clamping element passage opening can be provided in the change holder, with the clamping element being positioned so as to pass through the clamping element passage opening and a clamping element in the clamping member reach-through opening holding fastening element is to be positioned passing through the fastening element reach-through opening.
  • a fastening thread area be provided on the clamping element, and that on the fastening element a counter to be brought into threaded engagement with the fastening thread area in order to hold the clamping element in the clamping element passage opening -Mounting thread area is provided.
  • the fastening thread area can comprise an internal thread formed in an opening of the clamping element, and the counter-fastening thread area can comprise an external thread formed on a fastening element shaft of the fastening element.
  • the change holder comprises a change holder body with a tool carrier receiving cutout that essentially completely accommodates the tool carrier.
  • the tool holder clamping projection can be designed to extend from the tool holder body into the tool carrier receiving recess.
  • the invention also relates to a soil tillage roller, comprising a plurality of roller tools constructed according to the invention, the tool carriers of the roller tools being firmly connected to a carrier shell by screwing or welding, preferably in each case a weld seam surrounding the connection area of a respective tool carrier essentially without interruption.
  • the carrier shell can be a roll shell of the soil-cultivating roller or can be a casing shell to be arranged in the roll shell of the soil-cultivating roller so as to surround it.
  • the invention also relates to a soil tillage machine comprising at least one soil tillage roller constructed according to the invention.
  • a soil tillage roller for a soil tillage machine constructed, for example, in the manner of a soil compactor is denoted generally by 10 .
  • the soil tillage roller 10 comprises a roller shell 12 surrounding a roller axis of rotation A and having an outer peripheral surface 14.
  • a plurality of tool carriers 16 for interchangeable holders, generally designated 18, of roller tools generally designated 20 are screwed or welded to the outer peripheral surface 14 of the roller shell 12 fixed.
  • the tool carriers 16 are arranged in a plurality of rings following one another in the direction of the roll axis of rotation A, one after the other in the circumferential direction, with the tool carriers 16 arranged in rings directly following one another in the axial direction being offset from one another in the circumferential direction, for example.
  • the 2 shows the tillage roller 10 of 1 with the complete roll tools 20.
  • these include change tools 24 in the form of chisels held on change holders 18.
  • the soil tillage roller 10 shown includes the roller tools 20 carried on the change holders 18 roller tools 24 'in the form of pad feet.
  • the change holder 18 of the roller tools 20 are fixed directly to the roller shell 12 providing a carrier shell 26.
  • a cladding jacket constructed, for example, with a plurality of shell segments could be used as the carrier jacket 26, which can be arranged surrounding the roller jacket 12 of such a soil tillage roller 10 if required.
  • the 4 shows a in the 2 and 3 roller tool 20 shown when attached to a soil tillage roller 10 with the two different types of interchangeable tools 24, 24' in an exploded view.
  • the other essential system areas can be seen: tool carrier 16, interchangeable holder 18 and a clamping element 28, which is explained in more detail below, and a fastening element 30 assigned to it.
  • the tool carrier 16 to be defined on the outer peripheral surface 14 of the carrier shell 26, for example the roll shell 12, by material connection, in particular welding, is in the Figures 5 and 6 shown in more detail.
  • the tool carrier 16 comprises a connection region 32 of essentially plate-like design, which is designed to be curved to match the circularly curved outer peripheral contour of the carrier casing 26 and is surrounded by a chamfer 34 .
  • a weld seam, with which the connection area 32 can be connected materially to the outer peripheral surface 14 can be produced, essentially completely surrounding the connection area 32 , engaging in the chamfer 34 and thus realizing a stable mounting of the tool carrier 16 .
  • a tool carrier clamping recess 36 is formed on the tool carrier 16 in such a way that it extends in a direction R 1 away from the connection area 32, which essentially corresponds to a direction radially with respect to the roller axis of rotation A, and also in a direction R 2 , which is in the direction R 1 in the Is substantially orthogonal and is oriented parallel to the roll axis of rotation A substantially, is open.
  • the tool carrier clamping recess is delimited by a first clamping surface 38 and a second clamping surface 40 lying opposite thereto.
  • the two clamping surfaces 38, 40 are preferably also positioned with respect to one another in such a way that their mutual distance in direction R 2 is not constant, but here too the distance in this direction R 2 decreases.
  • the design can be such that the distance between the two clamping surfaces 38, 40 with respect to each other in the direction R 2 in the representation of figure 5 decreases slightly from front right to rear left.
  • the two clamping surfaces 38, 40 are preferably designed as flat, essentially non-curved surfaces.
  • the change holder 18 shown is designed with a hood-like or cap-like change holder body 42 .
  • the tool holder body 42 completely covers the tool holder 16 and also the weld seam connecting this to the holder jacket 26, so that the tool holder 16 is protected against external influences.
  • a change holder opening 52 is formed in the change holder 18 or in the change holder body 42 . This is oriented essentially orthogonally to the roller axis of rotation A and is thus elongated with respect to this longitudinal axis L of the opening, which extends radially, and is surrounded by an annular support surface 54 .
  • An interchangeable tool body 56 of the interchangeable tool 24 or 24' can be supported on this with a counter-support surface 60 surrounding an interchangeable tool shaft 58 of the same in the manner of a ring.
  • first clamping surface 38 On the change holder clamping projection 62 is in association with the first clamping surface 38 of the tool carrier 16 a substantially non-curved trained and in the 15 and 17 recognizable first counter-clamping surface 66 is formed.
  • the first counter-clamping surface 66 is employed and thus angled with respect to the longitudinal axis L of the opening such that the distance between the first counter-clamping surface 66 in the direction of the Opening longitudinal axis L increases away from the support surface 54 .
  • the tool carrier clamping recess 36 and the two clamping surfaces 38, 40 delimiting the tool carrier clamping recess 36 essentially provide a change holder clamping area 41 of the tool carrier 16, while the change tool clamping projection 62 essentially with its first counter -Clamping surface 66 provides a change holder counter-clamping area 43 of the change holder 18 .
  • the clamping element 28 shown is formed with a clamping element shaft 68 that is elongated in the direction of a longitudinal axis K of the clamping element and a clamping element head 70 .
  • a clamping element penetration opening 72 with a clamping element head receiving area 74 is formed in the tool holder body 42, in which, as in FIG 18
  • the clamp member head 70 can be substantially fully received and supported with respect to the tool changer body 42 .
  • a fastening element passage opening 76 through which the fastening element 30 can be passed with a fastening element shaft 78 for fastening interaction with the clamping element 28 is formed in the change holder body 42 opposite the clamping element passage opening 72 .
  • the fastener reach-through opening 76 has an enlarged fastener head receiving area 82 .
  • the clamping element 28 has a second counter-clamping surface 84 on its clamping element shaft 68 in association with the second clamping surface 40 of the tool carrier 16 .
  • the second counter-clamping surface 84 like the second clamping surface 40, is essentially flat, i.e. not curved, so that in 17 shown In the assembled state, the clamping element 28 is in surface contact with the second clamping surface 40 with its second counter-clamping surface 84 .
  • the clamping element 28 can have a holding surface 86, for example orthogonally to the second counter-clamping surface 84, which is essentially in one direction on a counter-holding surface 89 formed on the tool carrier 16 and arranged essentially orthogonally to the second clamping surface 40 can be supported radially inwards.
  • the clamping element 28 is designed in particular in the area of its clamping element shaft 68 with a generally wedge-like structure such that the clamping element shaft 68 has a tapering contour in the direction of the clamping element longitudinal axis K away from the clamping element head 70 .
  • the 10 and 11 also show that an opening 90 is formed in the clamping element shaft 68, which is open in the direction of the clamping element longitudinal axis K in the direction away from the clamping element head 70. Internal threads are formed in opening 90 providing a mounting thread portion 92 .
  • An external thread is provided on the fastening element shaft 78 of the fastening element 30, providing a counter-fastening threaded area 94, so that in order to fix the clamping element 28, the fastening element 30 with its fastening element shaft 78 or the external thread provided thereon can be inserted into the Internal threads in the opening 90 of the clamp member shaft 68 in the in 18 recognizable way can be screwed.
  • a changing tool clamping recess 94 is formed which is essentially open transversely to a longitudinal axis S of the shank. This is concave to complement the third counter-clamping surface 88 and provides a correspondingly curved third clamping surface 96 .
  • the third clamping surface 96 corresponding to the contour of the third counter-clamping surface 88, which tapers like a truncated cone or tapers like a cone, can also be designed to taper in a direction essentially orthogonal or skewed to the longitudinal axis S of the shank, so that in the assembled state there is a flat contact between the third Counter-clamping surface 88 and the third clamping surface 96 is reached.
  • the procedure can be such that firstly a change holder 18 covering an associated tool carrier 16 is brought up to the carrier shell 26 from the radial outside.
  • the tool holder clamping projection 62 enters the tool carrier clamping recess 36 .
  • the change holder 18 can be positioned, for example, in such a way that its first counter-clamping surface 66 is already in contact with the first clamping surface 38 or is opposite it at a small distance.
  • the change holder 18 can rest against the connection area 32 of the tool carrier 16 with an end face 98 formed on the change holder clamping projection 62 and oriented essentially orthogonally to the longitudinal axis L of the opening.
  • the tool changer 24 Before or after the above-described positioning of the tool holder 18 with respect to a tool carrier 16 , the tool changer 24 , for example, can already be inserted into the tool holder opening 52 so that its tool shaft 58 is positioned so that it engages in the tool holder opening 52 .
  • the changing tool 24 or 24 ' is in the circumferential direction with respect to the The longitudinal axis L of the opening is positioned in such a way that the changing tool clamping recess 94 is oriented away from the first counter-clamping surface 66 provided on the changing tool clamping projection 62 .
  • this orientation of the changing tool clamping recess 94 can also be provided by rotating the changing tool 24 or 24 ′ when the changing holder 18 is already positioned on the tool carrier 16 .
  • the clamping element 28 is then passed with its clamping element shaft 68 through the clamping element reach-through opening 72 in the change holder body 42 with such an orientation that the second counter-clamping surface 84 is opposite the second clamping surface 40 and the holding surface 86 is opposite the counter-holding surface 89 or rests against it .
  • the clamping element 28 is automatically oriented in such a way that the third counter-clamping surface 88 formed thereon is opposite the third clamping surface 96 on the changing tool shank 58 .
  • the clamping element 28 which is supported directly with respect to the tool carrier 16 and indirectly via the changing tool 24, 24' or the changing tool shank 58 with respect to the tool holder 18, thus generates a clamping interaction which ensures both stable mounting of the Interchangeable holder 18 on the tool carrier 16, as well as stable mounting of the interchangeable tool 24, 24' on the interchangeable holder 18.
  • the clamping element 28 presses the changing tool shank 58 not only essentially orthogonally to its longitudinal axis S against the quick-change holder 18, but also a force component directed towards the interchangeable tool shank 58 in the direction of the longitudinal axis S of the shank towards the connection area 32 of the tool carrier 16 is generated, and this in turn causes the interchangeable tool 24 or 24' to be pressed with the counter-support surface 60 formed on the interchangeable tool body 56 against the Change holder 18 formed support surface 54 is pressed.
  • a recess or opening 106 accommodating the axial end area of the exchangeable tool shank 58 can be formed in the connection area 32 of the tool carrier 16 .
  • the tension of the various system areas of the roller tool 20 in relation to each other caused by the wedge effect of the clamping element 28 can be generated in a particularly simple manner in that, after the clamping element 28 has been completely inserted into the change holder 18 in the manner described above, the fastening element 30 is screwed with its external thread into the internal thread of the clamping element 28 and thus the clamping element 28 is subjected to increased pressure in the direction of the longitudinal axis K of the clamping element until a maximum clamping effect is achieved.
  • the head of the clamping element 70 can be supported on the interchangeable holder 18 in the direction of the longitudinal axis K of the clamping element, or it can still be at a slight distance from it.
  • the fastener head 80 is supported in the fastener head receiving area 82 on the change holder 18 .
  • the tool holder 18 can be moved in relation to the tool carrier 16 in the direction of the roller axis of rotation A, since or if the change holder counter-clamping area 43 or the change holder clamping projection 62 has a slightly larger extension in the direction of the roller axis of rotation A than the tool carrier 16 in the area of its change holder clamping area 41 or its two clamping surfaces 38, 40.
  • a fine adjustment of the change holder 18 in the direction of the roll axis of rotation can thus be made possible.
  • the attachment and also the dismantling of an interchangeable holder on or from an associated tool carrier are made possible with structurally simple measures.
  • the change holder and the tool carrier can be designed as forged components, in which case the surfaces to be brought into contact with one another can be provided, for example, by high-precision machining.
  • the change holder can be designed with a substantially constant wall thickness in the area of its change holder body and thus provide reliable protection for the associated tool holder which is to be attached to a holder jacket in a material-locking manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Earth Drilling (AREA)
  • Harvester Elements (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Soil Working Implements (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
EP22196447.1A 2021-10-22 2022-09-20 Walzenwerkzeug für eine bodenbearbeitungswalze Pending EP4170096A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021127443.5A DE102021127443A1 (de) 2021-10-22 2021-10-22 Walzenwerkzeug für eine Bodenbearbeitungswalze

Publications (1)

Publication Number Publication Date
EP4170096A1 true EP4170096A1 (de) 2023-04-26

Family

ID=83398163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22196447.1A Pending EP4170096A1 (de) 2021-10-22 2022-09-20 Walzenwerkzeug für eine bodenbearbeitungswalze

Country Status (6)

Country Link
US (1) US20230130272A1 (zh)
EP (1) EP4170096A1 (zh)
CN (2) CN116005533A (zh)
AU (1) AU2022256149B2 (zh)
BR (1) BR102022021271A8 (zh)
DE (1) DE102021127443A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020131448A1 (de) * 2020-11-27 2022-06-02 Hamm Ag Walzenwerkzeug für eine Bodenbearbeitungswalze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297042B (de) * 1965-06-03 1969-06-04 Caterpillar Tractor Co Schaffuss fuer Schaffusswalze
US20040033107A1 (en) * 2000-05-05 2004-02-19 Caron James O. Fill and compaction roller using replaceable cleat assemblies with extended service life
EP2843135A1 (de) * 2013-08-27 2015-03-04 Hamm AG Wechselhalter für eine Verdichterwalze für einen Bodenverdichter
EP3093393A1 (de) 2012-01-16 2016-11-16 Hamm AG Verdichterwalze für einen bodenverdichter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6682262B2 (en) 2000-05-05 2004-01-27 Caron Compactor Company Fill and compaction roller using replaceable cleat assemblies with extended service life
DE102013217043A1 (de) 2013-08-27 2015-03-05 Hamm Ag Wechselhalteranordnung für eine Verdichterwalze für einen Bodenverdichter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297042B (de) * 1965-06-03 1969-06-04 Caterpillar Tractor Co Schaffuss fuer Schaffusswalze
US20040033107A1 (en) * 2000-05-05 2004-02-19 Caron James O. Fill and compaction roller using replaceable cleat assemblies with extended service life
EP3093393A1 (de) 2012-01-16 2016-11-16 Hamm AG Verdichterwalze für einen bodenverdichter
EP2843135A1 (de) * 2013-08-27 2015-03-04 Hamm AG Wechselhalter für eine Verdichterwalze für einen Bodenverdichter
DE102013217042A1 (de) 2013-08-27 2015-03-05 Hamm Ag Wechselhalter für eine Verdichterwalze für einen Bodenverdichter

Also Published As

Publication number Publication date
US20230130272A1 (en) 2023-04-27
AU2022256149B2 (en) 2024-05-16
DE102021127443A1 (de) 2023-04-27
BR102022021271A8 (pt) 2024-03-05
CN219080054U (zh) 2023-05-26
BR102022021271A2 (pt) 2023-05-09
CN116005533A (zh) 2023-04-25
AU2022256149A1 (en) 2023-05-11

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