EP2712827A1 - Hebevorrichtung und Kettenschmieranordnung einer Hebevorrichtung - Google Patents

Hebevorrichtung und Kettenschmieranordnung einer Hebevorrichtung Download PDF

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Publication number
EP2712827A1
EP2712827A1 EP12186480.5A EP12186480A EP2712827A1 EP 2712827 A1 EP2712827 A1 EP 2712827A1 EP 12186480 A EP12186480 A EP 12186480A EP 2712827 A1 EP2712827 A1 EP 2712827A1
Authority
EP
European Patent Office
Prior art keywords
chain
lubrication
lifting device
arrangement
deflection roller
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
EP12186480.5A
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English (en)
French (fr)
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EP2712827B1 (de
Inventor
Rami Salmi
Tuomo Ylikoski
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.)
Mesera Cranes Finland Oy
Original Assignee
MESERA CRANES FINLAND 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.)
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Publication date
Application filed by MESERA CRANES FINLAND Oy filed Critical MESERA CRANES FINLAND Oy
Priority to ES12186480.5T priority Critical patent/ES2555869T3/es
Priority to EP12186480.5A priority patent/EP2712827B1/de
Publication of EP2712827A1 publication Critical patent/EP2712827A1/de
Application granted granted Critical
Publication of EP2712827B1 publication Critical patent/EP2712827B1/de
Not-in-force legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/08—Masts; Guides; Chains

Definitions

  • the present invention relates to the field of lifting equipment as well as cranes and other lifting devices used for lifting and loading within the transportation industry, energy industry, process industry and manufacturing industry, and more particularly to a lifting device and a chain lubrication arrangement of a lifting device.
  • a crane is generally defined as a machine for lifting and moving heavy objects by means of ropes or cables suspended from a movable arm.
  • One of the most common crane types is a telescopic crane.
  • Telescopic cranes are special type of jib cranes having a telescopic jib or boom. Telescopic cranes are also often referred to as loader cranes, articulating cranes or knuckle-boom cranes.
  • a telescopic crane has typically a hydraulically-powered articulated arm having one or more of the arm sections telescopic. Other lifting devices are for example forklift stackers and other lifting machinery.
  • Telescopic cranes are used in industry for different applications these including handling of bulk material, such as coal, mineral, scrap metal and other material within the process and manufacturing industry as well as within the energy industry. Telescopic cranes are also typically used within the transportation industry as loading and unloading material these including loading and unloading of timber, bulk material, scrap metal and other material.
  • the telescopic crane may also be a mobile crane or a truck-mounted crane.
  • a truck-mounted telescopic crane is often a crane in which the numerous telescopic arm sections may be folded into a small space when the crane is not in use.
  • Within forestry telescopic cranes are used in e.g. timber trucks for loading and unloading of timber.
  • Some of the typical telescopic cranes according to the prior art are designed to have the hydraulic hoses and pipes fitted inside the articulated arm and the telescopic end-side inner arm portion of the telescopic crane.
  • Two typical examples of this type of telescopic cranes according to the prior art may be seen in US Patent documents US 5,924,837 and US 6,530,742 B2 .
  • the hoses and pipes may be somewhat safe from external objects these types of hoses are difficult to maintain or adjust.
  • US Patent documents US 5,924,837 there is presented a chain leading inside the articulated arm of the telescopic crane and the associated chain deflection roller or an idler deflecting the chain inside said articulated arm. The lubrication of the chain inside the articulated arm of the telescopic crane is very problematic to arrange satisfactorily.
  • European Patent documents EP 1842823 B1 and EP 2135836 B1 show a telescopic crane according to the prior art where in the connections for the hydraulic hoses are fitted to a special mounting block arranged in the end region of the articulated arm and in the interior of the crane arm pipe conduits lead to connections fitted to said mounting block.
  • the prior art telescopic cranes where both the hydraulic pipe conduits and the hydraulic hoses are fitted inside the telescopic crane structure have some problems. As the hydraulic hoses are tight and confined fitted inside the telescopic crane structure the hoses may wear against the moving telescopic boom parts.
  • the special mounting block of a telescopic crane according to the prior art is complex and expensive to manufacture.
  • the chain leading inside the lifting device such as chain leading inside the articulated arm of a telescopic crane is one of the key components subjected to wear and tear.
  • a good and satisfactory lubrication arrangement for the chain leading inside the lifting device would ensure the proper function and lifetime of the chain.
  • An object of the present invention is thus to provide a method and an apparatus for implementing the method so as to overcome the above problems and to alleviate the above disadvantages.
  • a lifting device comprising a chain element leading inside said lifting device and a chain deflection roller deflecting the chain element inside the lifting device and a lubrication nipple, which said lifting device further comprises lubrication channel arrangement leading the lubricant through a bearing arrangement to an outer surface of said chain deflection roller to provide lubrication for said chain element.
  • said lifting device is a telescopic crane comprising an articulated arm and at least one extendable arm.
  • a chain lubrication arrangement of a lifting device comprising a chain element leading inside said lifting device and a chain deflection roller deflecting the chain element inside the lifting device and a lubrication nipple
  • said chain lubrication arrangement of a lifting device comprises lubrication channel arrangement leading the lubricant through a bearing arrangement to an outer surface of said chain deflection roller to provide lubrication for said chain element.
  • the lubrication channel arrangement comprises a lubricant channel and a lubrication chamber.
  • the lubrication channel arrangement comprises lubrication channels in the chain deflection roller leading the lubricant to the lubricant to said bearing arrangement.
  • the bearing arrangement of the lubrication arrangement comprises a bushing bearing. More preferably, the bushing bearing of the lubrication arrangement comprises holes leading the lubricant towards an inner surface of said chain deflection roller. Preferably, said bushing bearing is fixed to the inner surface of the chain deflection roller. Preferably, said bushing bearing has a sliding surface of suitable sliding bearing material, such as e.g. bronze, sintered tin bronze, plastic, bearing plastic, composite, polytetrafluoroethylene or polyoxymethylene.
  • suitable sliding bearing material such as e.g. bronze, sintered tin bronze, plastic, bearing plastic, composite, polytetrafluoroethylene or polyoxymethylene.
  • the bearing arrangement of the lubrication arrangement comprises two or more rolling bearings and a channel between said rolling bearings. More preferably, said channel between said rolling bearings leads the lubricant towards an inner surface of said chain deflection roller.
  • the lubrication channel arrangement comprises one or more lubrication channels in the chain deflection roller leading the lubricant to the lubricant to the outer surface of said chain deflection roller to provide lubrication for said chain element.
  • said chain lubrication arrangement comprises distribution grooves to help the grease distribution to the one or more channels in said chain deflection roller.
  • said chain element is a chain, wire, belt, cable, hydraulic hose or another suitable chain element for transferring power or energy.
  • said chain element is connected to a chain tensioner.
  • Figure 1 shows one embodiment of a telescopic boom arrangement of a telescopic crane according to the present invention.
  • the telescopic boom arrangement of a telescopic crane according to the present invention comprises an articulated arm 1, an extendable crane-side outer arm 2 and a further extendable end-side inner arm 3.
  • the telescopic boom arrangement of a telescopic crane further comprises hydraulic pipe conduits arranged on top of the articulated arm 1 of the telescopic crane, which hydraulic pipe conduits are at least partially covered with a cover.
  • the articulated arm 1 of the telescopic boom arrangement of a telescopic crane has an opening for the hydraulic pipe conduits on the upper face of the articulated arm, which opening may be at least partially covered with a removable cover arranged at the arm region of the articulated arm 1.
  • the telescopic boom arrangement of a telescopic crane also comprises a chain element 4 which extends from the articulated arm over a chain wheel arranged at the crane-side outer arm 2 leading inside the articulated arm 1 of the telescopic crane and the associated chain deflection roller or and idler deflecting the chain inside said articulated arm further to the end-side inner arm 3, and which chain element 4 may be connected to a chain tensioner arranged at the end region of the articulated arm 1 of the telescopic crane.
  • the chain element 4 may be a chain 4, wire 4, belt 4, cable 4, hydraulic hose 4 or any other suitable chain element 4 for transferring power or energy.
  • FIG. 2 shows a detail of a longitudinal sectional view of an articulated arm of one embodiment of a telescopic boom arrangement of a telescopic crane according to the present invention.
  • the telescopic boom arrangement of a telescopic crane according to the present invention comprises a chain element 4 leading inside an articulated arm 1 of the telescopic crane and a chain deflection roller 5 deflecting the chain inside said articulated arm 1.
  • the chain element 4 may be a chain 4, wire 4, belt 4, cable 4, hydraulic hose 4 or any other suitable chain element 4 for transferring power or energy.
  • FIG 3 shows a detail of a longitudinal view of an articulated arm of one embodiment of a telescopic boom arrangement of a telescopic crane according to the present invention.
  • the telescopic boom arrangement of a telescopic crane according to the present invention comprises a lubricating nipple 6 on outer face of an articulated arm 1 of the telescopic crane.
  • the lubricating nipple 6 is used to lubricate a chain deflection roller 5 and a bearing arrangement of said chain deflection roller 5 as well as a chain element 4 leading inside the articulated arm 1 of the telescopic crane.
  • the chain element 4 may be a chain 4, wire 4, belt 4, cable 4, hydraulic hose 4 or any other suitable chain element 4 for transferring power or energy.
  • Figure 4 shows a chain lubrication arrangement of a lifting device according to the present invention.
  • the lifting device according to the present invention comprises a lubricating nipple 6 on outer face of the lifting device.
  • the lubricating nipple 6 is used to lubricate a chain deflection roller 5 and a bearing arrangement of said chain deflection roller 5 as well as a chain element 4 leading inside the lifting device.
  • the chain element 4 may be a chain 4, wire 4, belt 4, cable 4, hydraulic hose 4 or any other suitable chain element 4 for transferring power or energy.
  • lubricant e.g. grease is applied to the lubricating nipple 6 of the lifting device according to the present invention
  • first the lubricant enters through a lubricant channel 7 of the lubricating nipple 6.
  • the chain deflection roller 5 according to the present invention has a lubrication chamber 8 as well as one or more lubrication channels 9, 10 inside the chain deflection roller 5. From the lubricant channel 7 of the lubricating nipple 6 the lubricant e.g. grease enters to the lubrication chamber 8 of the chain deflection roller 5 and thereafter to the lubrication channels 9, 10 of the chain deflection roller 5.
  • the chain deflection roller 5 according to the present invention also comprises a bearing arrangement 11.
  • Said bearing arrangement 11 may comprise a bushing bearing 11 or two or more rolling bearings 11 and a channel between said rolling bearings 11.
  • Said bushing bearing 11 may be fixed to the inner surface 13 of the chain deflection roller 5.
  • a bushing bearing 11 according to the present invention has holes along said bushing bearing 11. From the lubrication channels 9, 10 of the chain deflection roller 5 the grease enters to a shaft surface 12 of the chain deflection roller 5 and thereafter through said holes along said bushing bearing 11 or through said channel between said rolling bearings 11 towards inner surface 13 of the chain deflection roller 5. Thereafter the grease enters further to one or more 16, 17 channels in the chain deflection roller 5 to an outer surface 18 of the chain deflection roller 5.
  • the lubricant provides lubrication for said chain element 4.
  • the inner surface 13 of the chain deflection roller 5 there may be distribution grooves 14, 15 to help the grease distribution along the inner surface 13 of the chain deflection roller 5 and on to the one or more 16, 17 channels in the chain deflection roller 5.
  • the said bushing bearing 11 may have a sliding surface made of any kind of suitable sliding bearing material, such as e.g. bronze, sintered tin bronze, plastic, bearing plastic, composite, polytetrafluoroethylene or polyoxymethylene.
  • suitable sliding bearing material such as e.g. bronze, sintered tin bronze, plastic, bearing plastic, composite, polytetrafluoroethylene or polyoxymethylene.
  • the lubrication solution according to the present invention provides a no good lubrication of the chain in the tight and cramped space inside the lifting device e.g. inside the articulated arm of the telescopic crane.
  • the lubrication solution according to the present invention ensures the proper function and lifetime of the chain.
  • the chain lubrication solution according to the present invention can be used in any kind of lifting equipment such as cranes, telescopic cranes, loader cranes, articulating cranes or knuckle-boom cranes and in other lifting devices such as forklift stackers and other lifting machinery.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Jib Cranes (AREA)
EP12186480.5A 2012-09-28 2012-09-28 Hebevorrichtung und Kettenschmieranordnung einer Hebevorrichtung Not-in-force EP2712827B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES12186480.5T ES2555869T3 (es) 2012-09-28 2012-09-28 Un dispositivo de elevación y una disposición de lubricación de la cadena de un dispositivo de elevación
EP12186480.5A EP2712827B1 (de) 2012-09-28 2012-09-28 Hebevorrichtung und Kettenschmieranordnung einer Hebevorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12186480.5A EP2712827B1 (de) 2012-09-28 2012-09-28 Hebevorrichtung und Kettenschmieranordnung einer Hebevorrichtung

Publications (2)

Publication Number Publication Date
EP2712827A1 true EP2712827A1 (de) 2014-04-02
EP2712827B1 EP2712827B1 (de) 2015-10-21

Family

ID=46970097

Family Applications (1)

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EP12186480.5A Not-in-force EP2712827B1 (de) 2012-09-28 2012-09-28 Hebevorrichtung und Kettenschmieranordnung einer Hebevorrichtung

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EP (1) EP2712827B1 (de)
ES (1) ES2555869T3 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180258278A1 (en) * 2017-03-10 2018-09-13 Celanese Sales Germany Gmbh Low Emission, Wear Resistant Polyoxymethylene Composition
US10538717B2 (en) 2016-10-11 2020-01-21 Celanese Sales Germany Gmbh Wear resistant polymer composition having improved surface appearance
US10676558B2 (en) 2017-04-07 2020-06-09 Ticona Llc Low emission polyoxymethylene composition
CN114655893A (zh) * 2022-03-22 2022-06-24 宁波意宁码头经营有限公司 一种润滑的堆高机门架组件

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1427724A (en) * 1921-02-18 1922-08-29 Clay James Richard Sling for handling cargo and other goods
US3893480A (en) 1973-12-26 1975-07-08 Glenn G Dunbar Hydraulic line assembly
US4252217A (en) * 1978-02-28 1981-02-24 Litton Systems, Inc. Semi-automated warehousing system
US5924837A (en) 1996-03-29 1999-07-20 Spitznas Maschinenfabrik Gmbh Extensible telescopic machine part
JP2003012291A (ja) * 2001-06-29 2003-01-15 Hitachi Constr Mach Co Ltd 伸縮ブームの伸縮用部材の給脂装置
US6530742B2 (en) 2000-07-05 2003-03-11 Deere & Company Telescopic boom routing assembly for transmission lines
US7311489B2 (en) 2001-11-26 2007-12-25 Komatsu Forest Ab Device for mounting of a turnable implement
EP1842823B1 (de) 2006-04-03 2009-09-16 Epsilon Kran GmbH Zweiteiliger Teleskoparm eines Kranes

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1427724A (en) * 1921-02-18 1922-08-29 Clay James Richard Sling for handling cargo and other goods
US3893480A (en) 1973-12-26 1975-07-08 Glenn G Dunbar Hydraulic line assembly
US4252217A (en) * 1978-02-28 1981-02-24 Litton Systems, Inc. Semi-automated warehousing system
US5924837A (en) 1996-03-29 1999-07-20 Spitznas Maschinenfabrik Gmbh Extensible telescopic machine part
US6530742B2 (en) 2000-07-05 2003-03-11 Deere & Company Telescopic boom routing assembly for transmission lines
JP2003012291A (ja) * 2001-06-29 2003-01-15 Hitachi Constr Mach Co Ltd 伸縮ブームの伸縮用部材の給脂装置
US7311489B2 (en) 2001-11-26 2007-12-25 Komatsu Forest Ab Device for mounting of a turnable implement
EP1842823B1 (de) 2006-04-03 2009-09-16 Epsilon Kran GmbH Zweiteiliger Teleskoparm eines Kranes
EP2135836B1 (de) 2006-04-03 2010-10-13 EPSILON Kran GmbH. Zweiteiliger Teleskoparm eines Kranes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10538717B2 (en) 2016-10-11 2020-01-21 Celanese Sales Germany Gmbh Wear resistant polymer composition having improved surface appearance
US11407957B2 (en) 2016-10-11 2022-08-09 Celanese Sales Germany Gmbh Wear resistant polymer composition having improved surface appearance
US20180258278A1 (en) * 2017-03-10 2018-09-13 Celanese Sales Germany Gmbh Low Emission, Wear Resistant Polyoxymethylene Composition
WO2018163099A1 (en) * 2017-03-10 2018-09-13 Celanese Sales Germany Gmbh Low emission, wear resistant polyoxymethylene composition
US10676558B2 (en) 2017-04-07 2020-06-09 Ticona Llc Low emission polyoxymethylene composition
CN114655893A (zh) * 2022-03-22 2022-06-24 宁波意宁码头经营有限公司 一种润滑的堆高机门架组件
CN114655893B (zh) * 2022-03-22 2023-09-19 宁波意宁码头经营有限公司 一种润滑的堆高机门架组件

Also Published As

Publication number Publication date
ES2555869T3 (es) 2016-01-11
EP2712827B1 (de) 2015-10-21

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