WO2014129954A1 - Crane arm that carries a rotator - Google Patents

Crane arm that carries a rotator Download PDF

Info

Publication number
WO2014129954A1
WO2014129954A1 PCT/SE2014/050147 SE2014050147W WO2014129954A1 WO 2014129954 A1 WO2014129954 A1 WO 2014129954A1 SE 2014050147 W SE2014050147 W SE 2014050147W WO 2014129954 A1 WO2014129954 A1 WO 2014129954A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotator
shaft
crane arm
carries
hoses
Prior art date
Application number
PCT/SE2014/050147
Other languages
French (fr)
Inventor
Magnus Lindström
Original Assignee
Cranab Ab
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 Cranab Ab filed Critical Cranab Ab
Publication of WO2014129954A1 publication Critical patent/WO2014129954A1/en

Links

Classifications

    • 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
    • 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
    • B66C3/005—Grab supports, e.g. articulations; Oscillation dampers; Orientation

Definitions

  • the invention relates to a crane arm that carries a rotator in a Cardan suspension with an upper hinge and a lower hinge, each of which has two coaxial bearings at a distance from one another, wherein hydraulic hoses to the hose connections of the rotator pass the hinges.
  • EP 1448471 shows two open hinges without a through shaft and the hoses run through both hinges down to the top connections on the rotator. This embodiment protects the hoses.
  • EP1889808 shows the hose connections of the rotator on the side of the rotator.
  • the hoses run through the upper hinge and out between the hinges to the side connections of the rotator, that are unprotected.
  • the invention has the goal of making available a protected hose run-through even in the case where the lower hinge is not an open hinge.
  • Figure 1 shows the end of a crane arm that carries a rotator.
  • Figure 2 is an end view as indicated with arrow 2.
  • the figures show the end of a crane arm 11 that carries a rotator 12 via a Cardan suspension 13. Only the rotator's upper part is shown and its lower part is adapted in a conventional manner to carry a working tool.
  • the end of the crane arm has two ears 14, 15 in which the housing 16 of the Cardan suspension is supported by two bearings 17, 18 connected together by a shaft 19.
  • the rotator is supported in two bearings 20, 21 connected together by a shaft 22.
  • the crane arm has four connections 23-26 for hoses 31- 34 that are coupled to the four hydraulic connections of the rotator with angle couplings 27-29, two on each side of the shaft 22 but only three are visible in the figures.
  • the hoses 31 , 32 on the right in the figures extend down around the shaft 22 and are coupled to angle couplings 27, 28 on the left of the shaft 22 in the figures.
  • hoses 33, 34 extend down at the left of the shaft 22 and extend in a curve under the shaft 22 and are coupled with angle couplings on the right of the shaft 22. Due to the fact that half of the rotator's connections are placed on the one side of the shaft 22 and the others on the other side, the connections are placed in protection and due to the fact that the they extend in a bend under the shaft the hoses can absorb the movements during the swinging about the shafts 19, 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Golf Clubs (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Jib Cranes (AREA)

Abstract

A crane arm (11) carries a rotator (12) in a Cardan suspension. Some of the hydraulic hoses (31, 32) to the rotator run down on one side of the shaft (22) and run in a bend under it and are coupled to the rotator on the other side of the shaft with angle couplings (27, 28), and some of the hydraulic hoses run down on the other side of the shaft and is coupled in a reversed manner.

Description

Crane Arm That Carries a Rotator
Area of the invention
The invention relates to a crane arm that carries a rotator in a Cardan suspension with an upper hinge and a lower hinge, each of which has two coaxial bearings at a distance from one another, wherein hydraulic hoses to the hose connections of the rotator pass the hinges.
Background of the invention
Conventionally, the hydraulic hoses to the rotator have been drawn outside of the Cardan suspension of the rotator. The hoses are then entirely unprotected.
EP 1448471 shows two open hinges without a through shaft and the hoses run through both hinges down to the top connections on the rotator. This embodiment protects the hoses.
EP1889808 shows the hose connections of the rotator on the side of the rotator. The hoses run through the upper hinge and out between the hinges to the side connections of the rotator, that are unprotected.
Purpose of the invention
The invention has the goal of making available a protected hose run-through even in the case where the lower hinge is not an open hinge.
Short description of the drawings
Figure 1 shows the end of a crane arm that carries a rotator.
Figure 2 is an end view as indicated with arrow 2.
Short description of the invention
When the lower hinge has a shaft between its coaxial bearings the hydraulic hoses are protected when hydraulic hoses pass down on the one side of the shaft and run in a curve underneath it and hydraulic hoses pass down on the other side of the shaft and run in a curve underneath it and when the hoses are coupled with angle couplings on the top of the rotator. The invention is defined by the claims.
Description of the shown and preferred example of the invention
The figures show the end of a crane arm 11 that carries a rotator 12 via a Cardan suspension 13. Only the rotator's upper part is shown and its lower part is adapted in a conventional manner to carry a working tool. The end of the crane arm has two ears 14, 15 in which the housing 16 of the Cardan suspension is supported by two bearings 17, 18 connected together by a shaft 19. The rotator is supported in two bearings 20, 21 connected together by a shaft 22. The crane arm has four connections 23-26 for hoses 31- 34 that are coupled to the four hydraulic connections of the rotator with angle couplings 27-29, two on each side of the shaft 22 but only three are visible in the figures.
The hoses 31 , 32 on the right in the figures extend down around the shaft 22 and are coupled to angle couplings 27, 28 on the left of the shaft 22 in the figures. In a
corresponding manner, hoses 33, 34 extend down at the left of the shaft 22 and extend in a curve under the shaft 22 and are coupled with angle couplings on the right of the shaft 22. Due to the fact that half of the rotator's connections are placed on the one side of the shaft 22 and the others on the other side, the connections are placed in protection and due to the fact that the they extend in a bend under the shaft the hoses can absorb the movements during the swinging about the shafts 19, 22.

Claims

Claim
1. Crane arm that carries a rotator (12) in a Cardan suspension (13) with an upper hinge (I) and a lower hinge (II), each of which has two coaxial bearings (17, 18; 20, 21) at a distance from one another, and hydraulic hoses (31-34) to the hose connections of the rotator pass the hinges,
characterized in that
at least the lower hinge (II) has a shaft (22) between its coaxial bearings (20, 21) and a some of the hydraulic hoses (31 , 32) pass down on one side of the shaft (22) and run in a bend under it and are coupled to the rotator on the other side of the shaft with angle couplings (27, 28), and some of the hydraulic hoses (33, 34) pass down on said other side of the shaft (22) and run in a bend under it and are coupled to the rotator with angle couplings (29) on said one side around the shaft.
PCT/SE2014/050147 2013-02-20 2014-02-05 Crane arm that carries a rotator WO2014129954A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1300134A SE1300134A1 (en) 2013-02-20 2013-02-20 Crane arm carrying a rotator
SE1300134-2 2013-02-20

Publications (1)

Publication Number Publication Date
WO2014129954A1 true WO2014129954A1 (en) 2014-08-28

Family

ID=51302815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2014/050147 WO2014129954A1 (en) 2013-02-20 2014-02-05 Crane arm that carries a rotator

Country Status (2)

Country Link
SE (1) SE1300134A1 (en)
WO (1) WO2014129954A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017191357A1 (en) * 2016-05-03 2017-11-09 Ponsse Oyj Arrangement in the hoisting apparatus of a work machine, hoisting apparatus of a work machine, and work machine
WO2017217917A1 (en) * 2016-06-16 2017-12-21 Komatsu Forest Ab Hose guiding devi ce for a crane tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE541217C2 (en) 2017-09-08 2019-05-07 Epiroc Rock Drills Ab Mining or construction vehicle
SE542480C2 (en) 2017-09-08 2020-05-19 Epiroc Rock Drills Ab Mining or construction vehicle enclosing a conduit arrangement

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120897A (en) * 1962-12-03 1964-02-11 Deere & Co Backhoe
US20050017528A1 (en) * 2001-11-26 2005-01-27 Tommy Ekman Device for mounting of a turnable implement
US20060254415A1 (en) * 2005-05-16 2006-11-16 Kubota Corporation Tractor with backhoe
EP1889808A1 (en) * 2006-04-03 2008-02-20 Epsilon Kran GmbH Crane arm with connecting device for a working implement
KR20090118866A (en) * 2008-05-14 2009-11-18 히다치 겡키 가부시키 가이샤 Handling device for hydraulic hose of hanging grapple
WO2011142704A1 (en) * 2010-04-13 2011-11-17 Indexator Ab Arrangement related to guiding of hoses and/or cables
WO2012081748A1 (en) * 2010-12-16 2012-06-21 볼보 컨스트럭션 이큅먼트 에이비 Device for fixing hydraulic pipe of boom swing type excavator

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120897A (en) * 1962-12-03 1964-02-11 Deere & Co Backhoe
US20050017528A1 (en) * 2001-11-26 2005-01-27 Tommy Ekman Device for mounting of a turnable implement
US20060254415A1 (en) * 2005-05-16 2006-11-16 Kubota Corporation Tractor with backhoe
EP1889808A1 (en) * 2006-04-03 2008-02-20 Epsilon Kran GmbH Crane arm with connecting device for a working implement
KR20090118866A (en) * 2008-05-14 2009-11-18 히다치 겡키 가부시키 가이샤 Handling device for hydraulic hose of hanging grapple
WO2011142704A1 (en) * 2010-04-13 2011-11-17 Indexator Ab Arrangement related to guiding of hoses and/or cables
WO2012081748A1 (en) * 2010-12-16 2012-06-21 볼보 컨스트럭션 이큅먼트 에이비 Device for fixing hydraulic pipe of boom swing type excavator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017191357A1 (en) * 2016-05-03 2017-11-09 Ponsse Oyj Arrangement in the hoisting apparatus of a work machine, hoisting apparatus of a work machine, and work machine
CN109071185A (en) * 2016-05-03 2018-12-21 蓬塞有限公司 The lifting equipment and Work machine of arrangement, Work machine in the lifting equipment of Work machine
RU2735563C2 (en) * 2016-05-03 2020-11-03 Понссе Ойй System in lifting mechanism of working machine, lifting mechanism of working machine and working machine
US11028552B2 (en) 2016-05-03 2021-06-08 Ponsse Oyj Arrangement in the hoisting apparatus of a work machine, hoisting apparatus of a work machine, and work machine
WO2017217917A1 (en) * 2016-06-16 2017-12-21 Komatsu Forest Ab Hose guiding devi ce for a crane tool
US11167958B2 (en) 2016-06-16 2021-11-09 Komatsu Forest Ab Hose guiding device for a crane tool

Also Published As

Publication number Publication date
SE536794C2 (en) 2014-08-19
SE1300134A1 (en) 2014-08-19

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