EP4392312A1 - Élément de support destiné à supporter une chenille sans fin et agencement dans une unité de chenille d'un véhicule à chenille - Google Patents

Élément de support destiné à supporter une chenille sans fin et agencement dans une unité de chenille d'un véhicule à chenille

Info

Publication number
EP4392312A1
EP4392312A1 EP22860692.7A EP22860692A EP4392312A1 EP 4392312 A1 EP4392312 A1 EP 4392312A1 EP 22860692 A EP22860692 A EP 22860692A EP 4392312 A1 EP4392312 A1 EP 4392312A1
Authority
EP
European Patent Office
Prior art keywords
track
support
support plate
support element
tracked vehicle
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
EP22860692.7A
Other languages
German (de)
English (en)
Inventor
Jani Karvanen
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.)
Reformet Oy
Original Assignee
Reformet Oy
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 Reformet Oy filed Critical Reformet Oy
Publication of EP4392312A1 publication Critical patent/EP4392312A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/20—Tracks of articulated type, e.g. chains
    • B62D55/205—Connections between track links
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C27/00—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels
    • B60C27/20—Non-skid devices temporarily attachable to resilient tyres or resiliently-tyred wheels having ground-engaging plate-like elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/26—Ground engaging parts or elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/18—Tracks
    • B62D55/26—Ground engaging parts or elements
    • B62D55/28—Ground engaging parts or elements detachable

Definitions

  • Support element for supporting a continuous track as well as arrangement in a track unit of a tracked vehicle
  • the invention relates to an arrangement in a track unit of a tracked vehicle .
  • 360 -degree rotating tracked chassis comprising a lower body and an upper body are used in excavators and similar heavy working machines .
  • the lower bodies are equipped with two track units , both of them including a continuous track and a track body supporting turning and support rollers .
  • the track pads of the continuous track may turn in such a way that the working machine loses some of its ability to move and of its stability . Therefore , different kinds of support elements , so-called support skis , have been developed to support the continuous tracks towards the driving surface as the track pads tend to incline .
  • the current support elements have been found to pose problems , especially concerning their operability .
  • the idea of the invention is to provide a novel and improved support element and arrangement for a track unit of a tracked vehicle ' s undercarriage .
  • the characteristics of the support element according to the invention are set forth in the characteri zing part of the first independent apparatus claim .
  • the characteristics of the arrangement according to the invention are set forth in the characteri zing part of the second independent apparatus claim .
  • the support element comprises a support plate having several fastening openings .
  • the support element is intended to be fastened in a substantially vertical position .
  • the support element comprises several separate fastening pins transversal to the support plate .
  • the first ends of the fastening pins are fastened to the track body while their second ends compri se fasteners to be fastened in the fastening openings of the support plate .
  • the support element provides a simple and easily modifiable fastening solution .
  • the support element has a rigid structure and it can give good protection to the track unit as well as improve the tracked vehicle ' s operability .
  • any loads to which the support element is subj ected through the continuous track are distributed over the entire structure of the support plate and, through the fastening pins , over the track body .
  • the support plate has a lower edge comprising a bottom rail .
  • the bottom rail may comprise a plate transversal to the lateral surface of the support plate , or a portion whose outer surface can be positioned to face the continuous track .
  • the support plate of the support element is easily removable and movable to another tracked vehicle . This allows the support element to be used not only in one tracked vehicle but in many similar working machines , provided that they are equipped with an identical set of fastening pins .
  • the distal second ends of the fastening pins are provided with threaded holes for fastening bolts .
  • the support element compri ses a cup-shaped washer between the fastening screw and the outer face of the support plate .
  • the cup-shaped washer comprises a space or seat to receive the head of the fastening bolt , the head of the bolt being protected by the washer .
  • the support element is dimensioned to extend over the entire length of the continuous track between the turning rollers .
  • the tracked vehicle is an excavator especially intended to be used for forest work or ditch digging and whose boom is equipped with a forest work device , such as a harvester head or a mounding device , or a ditching bucket .
  • a forest work device such as a harvester head or a mounding device , or a ditching bucket .
  • the support element comprises a bottom rail .
  • the bottom rail is mounted to the support plate unsymmetrically so that the bottom rail is offset in relation to the support plate .
  • the bottom rail extends dif ferent lateral distances on opposite sides of the support plate .
  • the support element can be mounted so that the longer portion of the bottom rail faces inwards , or it can be alternatively mounted to face outwards on the opposite s ide of the tracked vehicle . This way it is possible to select the mounting method of the support element and to thereby provide support for tracks with different widths .
  • the same support element can be used for at least two track widths without making modifications to the fastening pins and other fixed structures .
  • Figure 1 is a schematic view of a tracked vehicle whose chassis includes track units which can be equipped with support elements as disclosed herein,
  • Figure 2 is a schematic and lateral view of a track unit without a support plate for the support element ,
  • Figure 4 is a schematic and lateral view of a track unit equipped with a support element as disclosed herein
  • Figure 5 shows , schematically and viewed from the driving direction, an arrangement where a bolt j oins a support plate to a fastening pin provided on one side of the track body,
  • Figure 6 shows , schematically and viewed from the driving direction, another arrangement where support plates are attached to both sides of the track body,
  • Figure 12 is a schematic and cross-sectional view of a support plate arrangement comprising two support plates and provided with an offset mounted bottom rail ,
  • the support plate 17 of Figure 3 has fastening openings 18 as well as a bottom rail 19 which is provided on the lower surface of the support plate 17 .
  • the bottom rail 19 may have end sections 19a, 19b which are directed upwards .
  • the ends of the support plate 17 can be rounded .
  • Figure 4 shows the track unit 9 after it has been equipped with a support element 20 comprising the support plate 17 and the fastening pins 16 .
  • the support plate 17 may extend, in the vertical direction, beyond than the track body 15 and towards the upper track pad 24b .
  • Figure 6 illustrates a solution where the outer part 15a of the track body 15 and the outer part 15b of the track body 15 are equipped with a first support element 20a and a second support element 20b, respectively .
  • the dimensions of the support plates 17a, 17b may differ from each other , and, likewise , the fastening points of the fastening pins 16a, 16b can be positioned differently from each other .
  • the dimens ions of the fastening pins 16a , 16b can be selected case by case .
  • Figure 7 shows the components and the fastening principle of the support element 20 .
  • the fastening pin 16 is j oined to the track body 15 by weld j oints 27 .
  • Figure 8 shows an alternative support plate 17 whose lower edge is provided with a transversal bottom rail 19 extending on one side .
  • the whole has a substantially L-shaped cross-sectional profile at A-A, as shown in Figure 9 .
  • the washer may di ffer from the one shown in the figures .
  • the fastening pins can be shoulderless .
  • the ends of the support plate can be unrounded . It is also possible to construct a support plate only extending, as an integral piece , over a portion of the distance between the turning rollers . This allows a portion of said distance to be unsupported, or two or more support plates can be used one after another and to cover all , or a significant portion, of the distance .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un élément de support destiné à supporter une chenille sans fin d'un véhicule à chenille et un agencement dans une unité de chenille d'un véhicule à chenille. L'élément de support (20) est une pièce allongée fixée, par des éléments de fixation, à un corps de chenille (15) appartenant à une unité de chenille (9) du véhicule à chenille (1) pour supporter la chenille sans fin (10) vers la surface d'entraînement. L'élément de support comprend une plaque de support (17) ayant plusieurs ouvertures de fixation (18) et plusieurs broches de fixation (16) séparées qui sont transversales par rapport à la plaque de support (17) et dont les premières extrémités peuvent être fixées au corps de chenille (15). Les deuxièmes extrémités des broches comprennent des éléments de fixation destinés à être fixés dans les ouvertures de fixation de la plaque de support.
EP22860692.7A 2021-08-25 2022-08-24 Élément de support destiné à supporter une chenille sans fin et agencement dans une unité de chenille d'un véhicule à chenille Pending EP4392312A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FIU20214087U FI13035Y1 (fi) 2021-08-25 2021-08-25 Tukielin telaketjun tukemiseksi ja järjestely tela-ajoneuvon telayksikössä
PCT/FI2022/050547 WO2023025991A1 (fr) 2021-08-25 2022-08-24 Élément de support destiné à supporter une chenille sans fin et agencement dans une unité de chenille d'un véhicule à chenille

Publications (1)

Publication Number Publication Date
EP4392312A1 true EP4392312A1 (fr) 2024-07-03

Family

ID=78475469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22860692.7A Pending EP4392312A1 (fr) 2021-08-25 2022-08-24 Élément de support destiné à supporter une chenille sans fin et agencement dans une unité de chenille d'un véhicule à chenille

Country Status (3)

Country Link
EP (1) EP4392312A1 (fr)
FI (1) FI13035Y1 (fr)
WO (1) WO2023025991A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1992702A (en) * 1934-04-16 1935-02-26 Marion T Koop Dirt guard for track type tractors
US4082371A (en) * 1976-08-02 1978-04-04 Deere & Company Support and guide for a track of a track-laying vehicle
JP3354044B2 (ja) * 1996-03-08 2002-12-09 日立建機株式会社 装軌式車両の下部走行体

Also Published As

Publication number Publication date
WO2023025991A1 (fr) 2023-03-02
FI13035Y1 (fi) 2021-10-14

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