EP2568084B1 - Teleskopierbarer Kranarm - Google Patents

Teleskopierbarer Kranarm Download PDF

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Publication number
EP2568084B1
EP2568084B1 EP11007266.7A EP11007266A EP2568084B1 EP 2568084 B1 EP2568084 B1 EP 2568084B1 EP 11007266 A EP11007266 A EP 11007266A EP 2568084 B1 EP2568084 B1 EP 2568084B1
Authority
EP
European Patent Office
Prior art keywords
tube
crane arm
hydraulic line
boom
crane
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.)
Not-in-force
Application number
EP11007266.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2568084A1 (de
Inventor
Johannes Steindl
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.)
Epsilon Kran GmbH
Original Assignee
Epsilon Kran 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 Epsilon Kran GmbH filed Critical Epsilon Kran GmbH
Priority to EP11007266.7A priority Critical patent/EP2568084B1/de
Priority to ES11007266.7T priority patent/ES2457238T3/es
Priority to RU2012138149/11A priority patent/RU2012138149A/ru
Priority to US13/605,185 priority patent/US20130055658A1/en
Priority to ZA2012/06721A priority patent/ZA201206721B/en
Priority to CN2012105062452A priority patent/CN102992208A/zh
Priority to CA2788882A priority patent/CA2788882A1/en
Publication of EP2568084A1 publication Critical patent/EP2568084A1/de
Application granted granted Critical
Publication of EP2568084B1 publication Critical patent/EP2568084B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02F3/30—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/306—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 with a dipper-arm pivoted on a cantilever beam, i.e. boom with telescopic dipper-arm or boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/12—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices
    • B66C13/14—Arrangements of means for transmitting pneumatic, hydraulic, or electric power to movable parts of devices to load-engaging elements or motors associated therewith
    • 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
    • B66C23/54—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 with pneumatic or hydraulic motors, e.g. for actuating jib-cranes on tractors
    • 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
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2217—Hydraulic or pneumatic drives with energy recovery arrangements, e.g. using accumulators, flywheels
    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor

Definitions

  • the invention relates to a telescopic crane arm for a crane, in particular a mobile crane, with at least one boom and at least one telescopic movable relative to the boom Schububsverinrung and at least one arranged in the crane arm hydraulic line for attachable to the crane arm and hydraulically actuated implement, wherein the hydraulic line at least a first pipe and a second tube slidable with respect to the first tube, wherein a connection from the first tube and / or the second tube to at least one oil compensation space arranged in the interior of the crane arm is provided to compensate for effects of change in length of the crane arm.
  • the invention relates to a crane with at least one telescopic crane arm of the type specified.
  • Such telescopic crane crane jibs are already known in a variety of the prior art.
  • the hydraulic line which is normally designed as an oil hose. Due to the telescoping of the crane arm and the resulting change in length of the crane arm, it is also necessary that the hydraulic hose "grows" with the change in length of the crane arm. This is usually accomplished so that the hydraulic hose loops when the telescoping crane arm is retracted and these loops decrease or disengage during extension of the pusher extension when the pusher extension is extended.
  • the disadvantage here is that the loops of the hydraulic line thereby hang down from the crane arm and it is thus possible that This hydraulic line is damaged - be it while maneuvering the crane arm or when extending or retracting the Schub consortiumverbierung.
  • the object of the invention is to provide a comparison with the prior art improved telescoping crane arm for a crane.
  • the oil compensation chamber is designed to be variable in its volume, whereby a total spatial content of the first tube, the second tube and the oil compensation chamber in each Displacement position of the first tube relative to the second tube is the same size.
  • the oil compensation chamber is designed to be variable in shape, whereby the oil compensation chamber changes its longitudinal extension in each displacement position of the first tube relative to the second tube.
  • the oil compensation chamber with an extending crane arm increases its length or shortens its length with an entering crane arm.
  • the oil compensation chamber is formed in or on the hydraulic line. This measure can contribute to achieving a compact design.
  • the crane arm has at least one thrust cylinder for moving the Schubs Suiteveraterung relative to the boom.
  • the hydraulic line is fastened on the one hand to the boom and on the other hand is fastened to the push piece extension.
  • the thrust piece cylinder is formed in the interior of the thrust piece extension.
  • the thrust piece extension is formed in the interior of the thrust piece extension.
  • first hydraulic line is attached to the second hydraulic line, whereby the first hydraulic line moves together with the second hydraulic line when the push piece extension extends or retracts.
  • the first hydraulic line is designed as an oil supply line for a working device that can be fastened to the crane arm
  • the second hydraulic line is designed as an oil discharge line for the working device that can be fastened to the crane arm.
  • protection is desired for a crane with at least one telescopic crane arm according to at least one of the described embodiments.
  • FIG. 1 shows a crane 100, which is formed in this preferred embodiment as a vehicle crane.
  • the crane 100 in this case has a crane column 102, and a plurality of arms 103, 104 and 21.
  • the laying 104 and 21 are pivotable via a plurality of lifting cylinders via joints.
  • the implement 101 - in this embodiment a rotator - attached.
  • a tool to attach - which can be hydraulically operated among other things - such as the head of a Holz meetnters.
  • This tool would in this preferred embodiment via hydraulic lines 10 and 50 (not shown, see FIG. 2 ) operated.
  • These hydraulic lines 10 and 50 are in the interior of the crane arm 20 - ie in the interior of the boom 21 and the Schub Federationveraterung 22 - formed.
  • FIG. 2 shows a section through the telescopic crane arm 20. In the interior 24 of the pusher extension 22 while the pusher cylinder 23 and the two hydraulic lines 10 and 50 is formed.
  • hydraulic line 10 and 50 is not attached to the boom 21 and the thrust piece extension 22, but that the hydraulic line 10 and 50 is fixed to the thrust cylinder 23 and extends together with this or retracts.
  • the hydraulic line 10 is formed as an oil supply line 105 for the attached to the crane arm 20 implement 101 and the second hydraulic line 50 as ⁇ labtechnisch Gustav 106 for the crane arm 20th attached working device 101 formed. It is of course also conceivable that these hydraulic lines 10 and 50 can also be used for other purposes or it is also conceivable to form further hydraulic lines in the interior 24 of the thrust piece extension 22.
  • FIG. 2 is the embodiment of a hydraulic line 10 and 50 of FIGS. 3a and 3b shown, also it is of course possible, the embodiments of FIGS. 4a and 4b as well as the FIGS. 5a and 5b in this crane arm 20 or this Schub Federationveraterung 22 form.
  • FIG. 3a shows a section through the hydraulic lines 10 and 50 in the retracted state and FIG. 3b shows a section through the hydraulic line 10 and 50 in the extended state.
  • the hydraulic line 10 or 50 has a first tube 1 and a second tube 2 which is displaceable relative to the first tube 1, wherein a connection 3 from the first tube 1 and / or the second tube 2 to at least one oil compensation chamber 4 which varies in its volume 33 is formed, whereby a total spatial content 30 of the second tube 2, the first tube 1 and the oil compensation chamber 4 in each extension position of the second tube 2 relative to the first tube 1 is the same size.
  • the entire spatial content 30 is formed by the second pipe space content 32, the first pipe space content 31 and the volume 33 of the oil equalization space 4. Strictly speaking, the volume of the compound 3 is also added to the entire spatial content 30, since this volume of compound 3 but not changed, this can be disregarded.
  • the volume 33 of the variable oil compensation chamber 4 is the largest and the second tube space content 32 of the second tube 2 smallest. If the second tube 2 now moves relative to the first tube 1, the second tube space content 32 increases and the volume 33 of the oil compensation chamber 4 is made possible, in that oil flows from the oil equalization chamber 4 via the connection 3 into the second tube 2. It can thereby be achieved that the oil pressure within the hydraulic line 10 or 50 in each extension position of the second tube 2 relative to the first tube 1 is constant.
  • the second tube 2 is moved together with the thrust piece extension 22 and the first tube 1 is fixedly secured to the boom 21.
  • first tube 1 could be moved together with the thrust piece extension 22 and that the second tube 2 could be fixedly secured to the boom 21.
  • the compensation chamber 4 is formed outside the first tube 1 and outside the second tube 2. It is also conceivable, of course, that the oil compensation chamber 4 is formed between the two pipes 1 and 2. Furthermore, it would also be conceivable that the oil compensation chamber 4 is formed in the first tube 1 or in the second tube 2. In this preferred embodiment, further, the first tube 1 is formed as an inner tube and the second tube 2 as an outer tube.
  • FIG. 4a shows a further embodiment of a hydraulic line 10 and 50 in the retracted state.
  • the oil compensation chamber 4 is still formed in the interior 24 of the pusher extension 22 (not shown, see FIG. 2 However, not directly on the pipes 1 and 2. Nevertheless, the oil compensation chamber 4 is connected via the connection 3 with the pipes 1 and 2. Process the two tubes 1 and 2 relative to each other (as in FIG. 4b shown) so oil passes from the oil compensation chamber 4 via the connection 3 in the interior of the first tube 1 whereby the first tube space content 31 increases.
  • the hydraulic line 10 and 50 at least a first tube 1 and a second tube 2 displaceable in the first tube 2, wherein the compound 3 from the first tube 1 to a arranged in the interior 24 of the pusher extension 22 oil compensation chamber 4 to compensate Effects of the change in length of the crane arm (20) is formed.
  • FIG. 5a and Figure 5b show a further variant of an embodiment of a hydraulic line 10 and 50.
  • both tubes 1 and 2 during the extension of the thrust piece extension 22 are moved.
  • connection 3 between the two tubes 1 and 2 is substantially straight from the tube opening 43 of the second tube 2 to the oil compensation chamber 4 and from this via the tube opening 42 of the first tube 1 in the first tube.
  • the oil compensation chamber 4 changes its shape.
  • the connection 3 still exists via the tube opening 43 of the second tube 2 to the oil compensation chamber 4 and from this via the tube opening 42 of the first tube 1 in the first tube 1, while the oil compensation chamber 4 was stretched by the extension around the two channels 44th
  • the volume 32 of the second tube 2 and the volume 31 of the first tube 1 and the volume 33 of the compensation chamber 4 changes neither in total nor individually, it only changes the longitudinal extent of the compensation chamber 4.
  • the volume 33 of the compensation chamber 4 is due to the fact that the channels 44 are filled even in the retracted state of the two tubes 1 and 2, also constant.
  • the amount of oil in the hydraulic line is constant in each telescoping position, ie there is no oil flow at the inlet or at the inlet Output of the hydraulic line comes when the pusher extension extends or retracts. That is, the pressure is constant at all times in any position in the hydraulic line - without the intervention of a pump or the like.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
EP11007266.7A 2011-09-07 2011-09-07 Teleskopierbarer Kranarm Not-in-force EP2568084B1 (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP11007266.7A EP2568084B1 (de) 2011-09-07 2011-09-07 Teleskopierbarer Kranarm
ES11007266.7T ES2457238T3 (es) 2011-09-07 2011-09-07 Brazo de grúa telescópico
US13/605,185 US20130055658A1 (en) 2011-09-07 2012-09-06 Telescopic crane arm
RU2012138149/11A RU2012138149A (ru) 2011-09-07 2012-09-06 Телескопическая стрела крана
ZA2012/06721A ZA201206721B (en) 2011-09-07 2012-09-07 Telescopic crane arm
CN2012105062452A CN102992208A (zh) 2011-09-07 2012-09-07 可伸缩的起重臂以及具有该可伸缩的起重臂的起重机
CA2788882A CA2788882A1 (en) 2011-09-07 2012-09-07 Telescopic crane arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11007266.7A EP2568084B1 (de) 2011-09-07 2011-09-07 Teleskopierbarer Kranarm

Publications (2)

Publication Number Publication Date
EP2568084A1 EP2568084A1 (de) 2013-03-13
EP2568084B1 true EP2568084B1 (de) 2014-01-08

Family

ID=44658552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11007266.7A Not-in-force EP2568084B1 (de) 2011-09-07 2011-09-07 Teleskopierbarer Kranarm

Country Status (7)

Country Link
US (1) US20130055658A1 (es)
EP (1) EP2568084B1 (es)
CN (1) CN102992208A (es)
CA (1) CA2788882A1 (es)
ES (1) ES2457238T3 (es)
RU (1) RU2012138149A (es)
ZA (1) ZA201206721B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759570A (zh) * 2016-11-30 2017-05-31 广西大学 一种伺服电机驱动具有可变活动度连杆机构
CN106759572A (zh) * 2016-11-30 2017-05-31 广西大学 一种采用伺服电机驱动可变活动度连杆机构进行工业废料抓装作业方法
FR3073584B1 (fr) * 2017-11-10 2020-07-03 Guima Palfinger Systeme telescopique comprenant en extremite un equipement actionne par un verin
SE543577C2 (en) * 2019-08-26 2021-04-06 Epiroc Rock Drills Ab A mining machine and a method for rock excavations, as well as a method for conveying hydraulic fluid using the mining machine
SE543971C2 (sv) * 2019-12-12 2021-10-12 Virdenaes Hans Gunnar Ledad lyftarm

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187916A (en) * 1962-06-06 1965-06-08 Shaft Machines Ltd Mucking machines and excavators of the telescopic boom-type
US3207044A (en) * 1963-05-20 1965-09-21 Thomas R Hall Feeder tube cylinder
US3666125A (en) * 1970-09-10 1972-05-30 Warner Swasey Co Boom assembly
FR2194895B1 (es) 1972-08-02 1976-05-14 Poclain Sa
US4080870A (en) * 1977-01-10 1978-03-28 Stearns Roger Corporation Multiple position fluid conductor apparatus
US4294572A (en) * 1978-04-10 1981-10-13 Pattison Jack E Internal fluid communication system for power cylinders
US5638616A (en) * 1994-12-21 1997-06-17 Nikken Corporation Oil supply mechanism in a deep excavator
DE29722394U1 (de) * 1997-12-18 1999-04-22 Oberniehaus Rainer Arbeitsgerät
CN201747694U (zh) * 2010-07-15 2011-02-16 徐州重型机械有限公司 单缸插销油缸及具有该油缸的伸缩臂、起重机
CN102070089B (zh) * 2010-12-29 2012-12-26 三一汽车起重机械有限公司 具有单缸插销式工作臂的起重机及其臂长测量方法和装置

Also Published As

Publication number Publication date
EP2568084A1 (de) 2013-03-13
CA2788882A1 (en) 2013-03-07
RU2012138149A (ru) 2014-03-20
CN102992208A (zh) 2013-03-27
ZA201206721B (en) 2013-05-29
ES2457238T3 (es) 2014-04-25
US20130055658A1 (en) 2013-03-07

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