EP3929361A1 - Dispositif porte-outil et machine de travail mobile - Google Patents

Dispositif porte-outil et machine de travail mobile Download PDF

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Publication number
EP3929361A1
EP3929361A1 EP20182123.8A EP20182123A EP3929361A1 EP 3929361 A1 EP3929361 A1 EP 3929361A1 EP 20182123 A EP20182123 A EP 20182123A EP 3929361 A1 EP3929361 A1 EP 3929361A1
Authority
EP
European Patent Office
Prior art keywords
holding
guide
tool
housing
bolt
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
EP20182123.8A
Other languages
German (de)
English (en)
Inventor
Lorenz PFAFFENWIMMER
Thomas Lohmann
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.)
Wacker Neuson Linz GmbH
Original Assignee
Wacker Neuson Linz 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 Wacker Neuson Linz GmbH filed Critical Wacker Neuson Linz GmbH
Priority to EP20182123.8A priority Critical patent/EP3929361A1/fr
Publication of EP3929361A1 publication Critical patent/EP3929361A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3627—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a longitudinal locking element
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

Definitions

  • the invention relates to a tool holding device, in particular a quick tool change coupling, for holding a releasably connectable working tool according to the preamble of claim 1.
  • the locking is correct, i.e. after the so-called front bolt has been picked up with the quick coupler, the detent moves under the rear bolt and secures it.
  • the front bolt is picked up by the quick coupler, but the attachment is not correctly seated on the quick coupler, e.g. due to the trapping of stones etc., and the catch moves over the so-called rear bolt and therefore does not secure it. If you now turn off the quick coupler, the attachment falls down.
  • the attachment is picked up by the so-called front bolt.
  • the notch strikes the so-called rear bolt more in the middle, thus clamping the attachment on the quick coupler and providing a certain hold, although the attachment is not correctly locked.
  • the attachment can jump off at any time due to the unstable position of the bolt and notch and the attachment can fall off.
  • This case is also the most critical case, as it appears here as if the attachment is already connected to the quick coupler. The attachment must always be prevented from falling.
  • the object of the invention is to propose a tool holding device which at least partially improves the disadvantages of the prior art, in particular is structurally and / or economically favorable and / or has comparatively little installation space.
  • the constructive and also the economic effort as well as the space requirement for securing the first / front retaining element are comparatively small or very small.
  • a high safety standard can be achieved, since, among other things, a spiral spring cannot be damaged or even broken as in the prior art.
  • the advantageous massive mechanical components ensure a high level of security.
  • the hydraulic cylinder unit can be pivoted about a fixing axis with respect to the housing in order to be able to advantageously adapt to the other or second end / side, ie the piston side or the piston element.
  • This advantageous embodiment enables a particularly structurally and economically favorable and space-saving implementation according to the invention.
  • the guide according to the invention is designed as a link guide or the like.
  • the guideway is the Guide element and / or the guide device designed as a guide groove.
  • the guide groove advantageously enables a transverse or lateral, in particular bilateral, guide in relation to the guide direction or the guide path, so that a high level of operational reliability and precise control of the guide is achieved.
  • the guide groove can be a part or an essential component of a link guide.
  • FIG 1 a tool holding device 1 or a so-called quick changer 1 according to the invention in a locked position with two secured bolts 2, 3 of a working tool 4 is shown schematically.
  • the quick coupler 1 includes, inter alia, a housing 5 with eyelets or openings for an excavator arm or the like, not shown in detail.
  • a hydraulic cylinder 6 which can adjust a notch 7 along a linear adjustment path.
  • this catch 7 secures the so-called second or rear bolt 3 in the working position or in the extended position.
  • this catch 7 releases the so-called second or rear bolt 3 in the release position or in the retracted position, so that the bolt 3 is not secured or locked.
  • first or front bolt 2 of the working tool 4 or attachment tool 4 is advantageously held by means of locking lugs 10.
  • this first / front bolt 2 is additionally secured / held with two bolts 11.
  • These bolts 11 are confirmed or adjusted with the aid of the hydraulic cylinder 6.
  • the bolts 11 advantageously have levers 12 which have rollers 13 arranged at the ends. These rollers 13 are guided by means of a guide groove 14.
  • the lever 12 is pivoted about a pivot axis 16 and thus at the same time the bolt 11 (cf. Figures 3 and 4 ).
  • the first / front bolt 2 is therefore not only held by the ratchet lugs 10, but also by the bolts 11.
  • the lever element 12 actuated by the link guide according to the invention can actuate a wide variety of locking elements 11.
  • the lever element 12 can be designed directly as a hook 11 which secures the front bolt 2.
  • the lever element 12 can also actuate other locking elements 11, for example move a slide up / down, open / close the latch or the like.
  • the lever element 12 has a defined shape or curved / angled shape (cf., for example, the shape of the groove 14) and, for example, two rollers are attached to the catch 2 or the movable part of the hydraulic cylinder 6, which are attached to the corresponding levers are arranged / guided.
  • the lever element runs between these rollers and its shape moves it up and down.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
EP20182123.8A 2020-06-25 2020-06-25 Dispositif porte-outil et machine de travail mobile Pending EP3929361A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20182123.8A EP3929361A1 (fr) 2020-06-25 2020-06-25 Dispositif porte-outil et machine de travail mobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20182123.8A EP3929361A1 (fr) 2020-06-25 2020-06-25 Dispositif porte-outil et machine de travail mobile

Publications (1)

Publication Number Publication Date
EP3929361A1 true EP3929361A1 (fr) 2021-12-29

Family

ID=71143613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20182123.8A Pending EP3929361A1 (fr) 2020-06-25 2020-06-25 Dispositif porte-outil et machine de travail mobile

Country Status (1)

Country Link
EP (1) EP3929361A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1318242B1 (fr) 2001-12-06 2006-10-11 Geith Patents Limited Attache rapide pour accoupler un accessoire à un bras de godet et un tel attache rapide comprenant un système de commande
WO2009110808A1 (fr) * 2008-03-07 2009-09-11 Wedgelock Equipment Limited Dispositif d’accouplement pour machine de manutention de matériaux ou de terrassement
US20160002877A1 (en) * 2014-07-03 2016-01-07 Norm Engineering Pty Ltd. Coupler for Coupling Attachments to Excavation Machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1318242B1 (fr) 2001-12-06 2006-10-11 Geith Patents Limited Attache rapide pour accoupler un accessoire à un bras de godet et un tel attache rapide comprenant un système de commande
WO2009110808A1 (fr) * 2008-03-07 2009-09-11 Wedgelock Equipment Limited Dispositif d’accouplement pour machine de manutention de matériaux ou de terrassement
US20160002877A1 (en) * 2014-07-03 2016-01-07 Norm Engineering Pty Ltd. Coupler for Coupling Attachments to Excavation Machines

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