EP1574473A1 - Greifwerkzeug - Google Patents
Greifwerkzeug Download PDFInfo
- Publication number
- EP1574473A1 EP1574473A1 EP04030355A EP04030355A EP1574473A1 EP 1574473 A1 EP1574473 A1 EP 1574473A1 EP 04030355 A EP04030355 A EP 04030355A EP 04030355 A EP04030355 A EP 04030355A EP 1574473 A1 EP1574473 A1 EP 1574473A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wear
- gripping tool
- gripper
- shell
- tool according
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- OCDRLZFZBHZTKQ-NMUBGGKPSA-N onetine Chemical compound C[C@@H](O)[C@@]1(O)C[C@@H](C)[C@@](C)(O)C(=O)OC\C2=C\CN(C)CC[C@@H](OC1=O)C2=O OCDRLZFZBHZTKQ-NMUBGGKPSA-N 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 239000003082 abrasive agent Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/04—Tine grabs
-
- 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
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/402—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors
- E02F3/404—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with means for facilitating the loading thereof, e.g. conveyors comprising two parts movable relative to each other, e.g. for gripping
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2816—Mountings therefor
- E02F9/2833—Retaining means, e.g. pins
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2808—Teeth
- E02F9/2858—Teeth characterised by shape
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/28—Small metalwork for digging elements, e.g. teeth scraper bits
- E02F9/2883—Wear elements for buckets or implements in general
Definitions
- the invention relates to a gripping tool, preferably a multi-shell gripper, with at least one prong.
- Clamshell grabs for material handling serve in particular for loading of bulk materials, fine and coarse scrap, demolition material or for loading of VA steels. These materials are abrasive materials that often have a much higher hardness than the receiving tool or the gripper. As a result, a considerable material removal occurs after a relatively short time the gripper shells on. For constructive reasons, especially because of the required Toughness, the claw shells are made of a not so tough Material produced, so that the total amount of wear is very high.
- the hook shells are currently regenerated by so-called armoring with an electrode. This surfacing is very time consuming and it is to this regeneration of the claw shells necessary to remove the entire grapple shell.
- the object of the invention is to extend the durability of the gripping tools and to simplify the possibly necessary regeneration of the gripping tools and thus lowering the regeneration costs.
- a gripping tool preferably a multi-shell gripper, created, the at least one claw shell with at least one Having tines, wherein at least one gripper cup at least one wear element is arranged such that the main wear areas through the at least one wear element are covered.
- the at least a wear element made of wear-resistant material.
- This wear-resistant On the one hand, material can be a highly wear-resistant material, which as such is not weldable, or even a highly tempered material, that is just weldable.
- the at least one wear element can advantageously via bolts and / or Screw with the gripper shell be releasably connected again. This is a particularly easy replacement of the wear element possible.
- the wear element via an adhesive connection with the hook shell be connected.
- a highly wear-resistant material which is not weldable as such, be connected to the gripper shell. This is of course also for the aforementioned case of the bolt and / or screw connection possible.
- the wear element and high-tempered Material exist, which is very resistant, but still weldable is.
- This wear element can be tack welded to the hook shell be connected.
- the wear element be made as a cast or forged part.
- the wear elements can each be designed as circular segments be, with the advantage that, depending on the wear, the individual circle segments then can be replaced individually.
- Fig. 1 is a single gripper shell 10 of a gripping tool according to the invention, consisting of a tine, shown.
- the gripper cup 10 is, as in the Fig. 1, executed curved.
- the gripper shell 10 has bearings in the usual way 12 and 14 on.
- the gripper shells 10 are made of a tough but not made of very resistant material.
- the wear elements 16, 18 and 20 executed as castings, all three parts in the form of circle segments are designed.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Crushing And Grinding (AREA)
- Gripping On Spindles (AREA)
- Fishing Rods (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
Description
- Fig. 1:
- eine Greiferschale eines erfindungsgemäßen Greifwerkzeugs in perspektivischer Ansicht.
- Fig. 2:
- das Greifwerkzeug nach Fig. 1 in frontaler Ansicht,
- Fig. 3:
- das Greifwerkzeug nach Fig. 1 in Seitenansicht und
- Fig. 4:
- das Greifwerkzeug gemäß Fig. 1 in Rückansicht.
Claims (7)
- Greifwerkzeug, vorzugsweise Mehrschalengreifer, mit mindestens einer Greiferschale mit mindestens einem Zinken,
dadurch gekennzeichnet, dass an der mindestens einen Greiferschale mindestens ein Verschleißelement derart angeordnet ist, daß die Hauptverschleißbereiche durch das mindestens eine Verschleißelement abgedeckt sind. - Greifwerkzeug nach Anspruch 1, dadurch gekennzeichnet, dass das mindestens eine Verschleißelement aus verschleißfestem Material besteht.
- Greifwerkzeug nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das mindestens eine Verschleißelement aus hoch verschleißbeständigem Material über Bolzen und/oder Schrauben mit der Greiferschale wieder lösbar verbunden ist.
- Greifwerkzeug nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das mindestens eine Verschleißelement aus hoch verschleißbeständigem Material über eine Klebeverbindung mit der Greiferschale verbunden ist.
- Greifwerkzeug nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das mindestens eine Verschleißelement aus hochvergütetem Material über eine Heftschweißverbindung mit der Greiferschale lösbar verbunden ist.
- Greifwerkzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das mindestens eine Verschleißelement als Guss- oder Schmiedeteil ausgebildet ist.
- Greifwerkzeug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Verschleißelemente als Kreissegmente gestaltet sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202004003910U DE202004003910U1 (de) | 2004-03-12 | 2004-03-12 | Greifwerkzeug |
| DE202004003910U | 2004-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1574473A1 true EP1574473A1 (de) | 2005-09-14 |
| EP1574473B1 EP1574473B1 (de) | 2008-05-14 |
Family
ID=34802090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04030355A Expired - Lifetime EP1574473B1 (de) | 2004-03-12 | 2004-12-21 | Greifwerkzeug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7344175B2 (de) |
| EP (1) | EP1574473B1 (de) |
| AT (1) | ATE395296T1 (de) |
| DE (2) | DE202004003910U1 (de) |
| ES (1) | ES2304577T3 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006059894A1 (de) * | 2006-12-19 | 2008-06-26 | Terex Gmbh | Verschleißelement sowie damit ausgerüstetes Bauteil |
| USD610592S1 (en) * | 2008-10-24 | 2010-02-23 | Miller International Limited | Excavator bucket |
| CN102167233B (zh) * | 2011-03-21 | 2013-12-18 | 何嘉诚 | 一种抓具的液压旋转装置 |
| USD702738S1 (en) | 2011-07-01 | 2014-04-15 | Timothy M. Molnar | Attachment for equipment bucket |
| US9138829B2 (en) | 2013-09-03 | 2015-09-22 | Robert David Reid | Pipe welding fixture |
| US20160153178A1 (en) * | 2016-02-04 | 2016-06-02 | Caterpillar Inc. | Ground engaging tool with replaceable wear resistant cover |
| US10150651B2 (en) | 2017-01-18 | 2018-12-11 | Cranemasters, Inc. | Tank car lifting apparatus |
| USD967592S1 (en) * | 2020-09-14 | 2022-10-18 | Cranemasters, Inc. | Lifting arm |
| USD968745S1 (en) * | 2020-09-14 | 2022-11-01 | Cranemasters, Inc. | Lifting arm |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1756642A1 (de) * | 1968-06-20 | 1970-05-06 | Demag Zug Gmbh | Greifer in Verbundkonstruktion |
| US4907356A (en) * | 1989-01-23 | 1990-03-13 | Labounty Kenneth R | Slipper bucket for grapple |
| DE3841940C1 (en) * | 1988-12-13 | 1990-05-23 | Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf, De | Crescent-shaped basic body of a blade of a multi-bladed grab |
| DE9102928U1 (de) * | 1990-11-30 | 1991-05-29 | Böhler Ladetechnik Vertriebs- u. Entwicklungsgesellschaft m.b.H., Kapfenberg | Greifereinrichtung für Ladeschaufeln |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8815474U1 (de) * | 1988-12-13 | 1989-05-03 | Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf | Sichelförmiger Grundkörper einer Schale eines Mehrschalengreifers |
| US6000108A (en) * | 1999-01-22 | 1999-12-14 | Roan; Jing-Wen | Towing hook structure |
| CA2358339C (en) * | 2001-10-05 | 2010-06-15 | Peninsula Alloy Inc. | Wear plate assembly |
| DE10350540A1 (de) * | 2003-10-29 | 2005-06-09 | Liebherr-Hydraulikbagger Gmbh | Grab- bzw.Greifwerkzeug |
-
2004
- 2004-03-12 DE DE202004003910U patent/DE202004003910U1/de not_active Expired - Lifetime
- 2004-12-21 EP EP04030355A patent/EP1574473B1/de not_active Expired - Lifetime
- 2004-12-21 DE DE502004007128T patent/DE502004007128D1/de not_active Expired - Lifetime
- 2004-12-21 AT AT04030355T patent/ATE395296T1/de active
- 2004-12-21 ES ES04030355T patent/ES2304577T3/es not_active Expired - Lifetime
-
2005
- 2005-03-11 US US11/077,848 patent/US7344175B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1756642A1 (de) * | 1968-06-20 | 1970-05-06 | Demag Zug Gmbh | Greifer in Verbundkonstruktion |
| DE3841940C1 (en) * | 1988-12-13 | 1990-05-23 | Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf, De | Crescent-shaped basic body of a blade of a multi-bladed grab |
| US4907356A (en) * | 1989-01-23 | 1990-03-13 | Labounty Kenneth R | Slipper bucket for grapple |
| DE9102928U1 (de) * | 1990-11-30 | 1991-05-29 | Böhler Ladetechnik Vertriebs- u. Entwicklungsgesellschaft m.b.H., Kapfenberg | Greifereinrichtung für Ladeschaufeln |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050200146A1 (en) | 2005-09-15 |
| EP1574473B1 (de) | 2008-05-14 |
| DE202004003910U1 (de) | 2005-07-21 |
| DE502004007128D1 (de) | 2008-06-26 |
| US7344175B2 (en) | 2008-03-18 |
| ES2304577T3 (es) | 2008-10-16 |
| ATE395296T1 (de) | 2008-05-15 |
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