US20090250971A1 - Material handling machine - Google Patents

Material handling machine Download PDF

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Publication number
US20090250971A1
US20090250971A1 US12/070,764 US7076408A US2009250971A1 US 20090250971 A1 US20090250971 A1 US 20090250971A1 US 7076408 A US7076408 A US 7076408A US 2009250971 A1 US2009250971 A1 US 2009250971A1
Authority
US
United States
Prior art keywords
arm
material handling
handling machine
cabin
machine 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.)
Abandoned
Application number
US12/070,764
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English (en)
Inventor
Jan Breitenfeldt
Reinhard Remiger
Bernd Wager
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.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger 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 Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Assigned to LIEBHERR-HYDRAULIKBAGGER GMBH reassignment LIEBHERR-HYDRAULIKBAGGER GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BREITENFELDT, JAN, REMIGER, REINHARD, WAGER, BERND
Publication of US20090250971A1 publication Critical patent/US20090250971A1/en
Abandoned 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
    • B66C13/00—Other constructional features or details
    • B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
    • B66C13/54—Operator's stands or cabins
    • 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
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
    • 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
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins

Definitions

  • the present invention relates to a material handling machine with a material handling boom and a cabin boom, wherein the cabin boom comprises first and second arms, which are pivotally connected with each other via a connecting element, and a first actuator for moving the first arm.
  • material handling machines are understood to be material handling machines for instance for wood, scrap or any other goods, but also excavators and cranes.
  • the material handling boom By means of the material handling boom, the corresponding goods can be handled, whereas the cabin boom serves to adjust the position of the operator cabin.
  • This provides the operator with an improved vision of the working area, for instance cargo hatches, railway waggons or the like.
  • the cabin boom includes the pivotally connected arms, by means of which the position of the cabin with respect to the material handling machine can be adjusted. Due to the improved vision, more precise and faster working cycles can be performed.
  • the material handling machine usually includes a material handling boom and a separate cabin boom, which can be moved independently.
  • the material handling boom usually is disposed on the uppercarriage, which is rotatable with respect to the undercarriage.
  • the cabin boom likewise is pivotally mounted on the uppercarriage of the material handling machine and is laterally offset with respect to the material handling boom.
  • the cabin boom On its free end, the cabin boom carries the operator cabin, which thus is movable with respect to the uppercarriage.
  • both arms consist of parallel steering transmissions.
  • the lower parallel steering elements of both arms include a common pivot axis on the connecting element, which leads to an unfavorable distribution of forces and a greatly restricted sequence of movements.
  • the actuators for moving the parallel steering arms either are disposed inside the parallelogram, so that they are under a tensile load, or the actuator for moving the first arm is disposed between the first arm and the second arm, which in turn means a restricted geometry of adjustment.
  • the actuator for moving the first arm is pivotally mounted on the connecting element via a pivot point, which is disposed below the pivot point(s) of the first arm.
  • the present invention furthermore comprises a material handling machine, in which in accordance with the invention the first and second arms each are pivotally mounted on the connecting element via separate pivot axes.
  • the material handling machines of the invention merely the arms must be lengthened or shortened, in order to achieve different reaching heights or widths, whereas the kinematics with the actuators always can remain the same. In this case, only the piston diameter of the hydraulic cylinders used as actuators must at best be adapted.
  • the material handling machine of the invention can be adapted in terms of reaching height and width for different operating conditions with a minimum constructive effort.
  • the actuator of the second arm is disposed on the lower surface of the second arm.
  • this actuator also merely is under a compressive load by the weight of the cabin, so that here as well a larger effective surface is obtained.
  • the cramped conditions inside the parallel steering arms are avoided.
  • the actuators of the first and/or second arm are under a compressive load by the weight of the cabin in accordance with the invention. This involves the advantages already mentioned above in terms of force dissipation and geometry of adjustment.
  • the operator cabin is forcibly guided parallel to or at a certain angle with respect to the ground by means of a positive connection.
  • the alignment of the cabin need not be readjusted upon movement of the cabin boom, but is effected automatically by positive connection.
  • the operator can move the cabin into the desired position without changing the angle of the cabin with respect to the ground.
  • first and/or the second arm advantageously are configured as parallel steering arms. This provides for a forced parallel guidance of the operator cabin in a relatively simple way.
  • the first and/or the second arm of the cabin boom of the invention comprises at least one supporting element, which includes a closed box profile.
  • This provides a stable construction, which at the same time is of light weight and nevertheless reacts stiff to bending and torsional load.
  • the first and/or the second arm is configured as a parallel steering arm and comprises a main supporting element disposed at the bottom, which includes a closed box profile.
  • this main supporting element carries the main load, and the coupling rods and the connecting element can be configured more simple and optimized in terms of weight.
  • the first and/or the second arm of the cabin boom are configured as parallel steering arms, wherein the actuator associated to this arm engages the lower arm from outside the parallelogram.
  • the first and/or the second arm includes at least one hollow section in its interior for receiving the cables or tubes extending to the operator cabin.
  • the same advantageously can extend inside the closed box profile.
  • the connecting element of the invention includes a joint whose swivel axis is vertical to the pivot axes of the first and/or the second arm.
  • the cabin thus can not only be adjusted in terms of height and boom reach, but can also be swivelled laterally.
  • the swivel axis of the joint extends in vertical direction.
  • an actuator is associated to the joint of the connecting element. Via this actuator, the cabin then can be swivelled correspondingly.
  • the joint of the connecting element pivotally connects a first part and a second part of the connecting element, wherein the first arm and the second arm each are pivotally mounted on the first or second part of the connecting element.
  • the first and the second arm each are pivotally mounted on the connecting element via separate pivot axes and the actuator neither is disposed between the two arms.
  • the connecting element includes at least five separate pivot axes, namely two each for the arms of the cabin boom configured as parallel steering arms and one for the actuator of the first arm.
  • the three bearing points for bearing and adjusting the first arm can be arranged as desired with respect to the two bearing points of the second arm, so that the geometry of movement and adjustment of the boom can be adapted to the respective application as desired.
  • the cabin boom includes a docking position on the material handling machine, in particular on the uppercarriage of the material handling machine.
  • the operator can climb onto the material handling machine or the uppercarriage e.g. for maintenance work by moving the cabin into the docking position.
  • the cabin can be lowered to ground level by the cabin boom.
  • the operator can get into the same either from the ground already or he can use the cabin boom for transporting spare parts onto the material handling machine or onto the uppercarriage.
  • the material handling machine advantageously includes a platform for the transport of material, which is disposed at the cabin. With this platform, larger elements also can be transported onto the material handling machine by means of the cabin boom.
  • Access to the operator cabin either is effected from the ground, when the cabin has been lowered to ground level, or in the docking position on the uppercarriage. It is likewise conceivable that the cabin boom has a further access position, which provides for easy access to the operator cabin.
  • FIG. 1 shows a side view of an embodiment of the material handling machine of the invention
  • FIG. 2 shows a further side view of the embodiment of the material handling machine of the invention
  • FIG. 3 shows a side view of the embodiment of the material handling machine of the invention with lowered cabin
  • FIG. 4 shows a side view of the embodiment of the material handling machine of the invention with the cabin in the docking position on the uppercarriage, and
  • FIG. 5 shows a side view of a further embodiment of the material handling machine of the invention with three detailed views.
  • FIG. 1 shows an embodiment of the material handling machine of the invention with a material handling boom 1 and a cabin boom 2 , which are disposed on the uppercarriage 5 of the material handling machine of the invention.
  • the material handling machine is a mobile excavator, which can be moved via the undercarriage 6 .
  • the present invention likewise can be used for crawler excavators and other material handling excavators.
  • the material handling boom 1 includes two pivotally connected arms, which can be moved via corresponding actuators. On the tip of the material handling boom, a corresponding grab then is mounted depending on the application, with which the material to be handled can be grabbed.
  • Material handling boom 1 and cabin boom 2 are disposed one beside the other on the uppercarriage 5 such that the planes of movement of the two booms are substantially parallel to each other.
  • the uppercarriage 5 is rotatably mounted on the undercarriage 6 , so that both the material handling boom and the cabin boom, which both are pivotally mounted on the uppercarriage 5 , are equally rotated by rotating the uppercarriage 5 .
  • the cabin boom 2 of the invention comprises a first arm 10 and a second arm 20 , which are pivotally connected with each other via a connecting element 30 .
  • the first arm 10 carries the operator cabin 3 of the material handling machine.
  • a bracket 4 is disposed on the first arm 10 , which is of L-shaped configuration and on which the operator cabin 3 is mounted.
  • the second arm 20 is pivotally mounted on the material handling machine, here on the uppercarriage 5 .
  • the first arm 10 is moved via an actuator 15 , the second arm 20 via an actuator 25 . Both actuators are configured as hydraulic cylinders.
  • the first actuator 15 for moving the first arm 10 is pivotally mounted on the connecting element 30 via a pivot point 33 , which is disposed below the pivot points 31 of the first arm 10 .
  • the first actuator 15 merely is under a compressive load.
  • an improved geometry of adjustment is obtained, in which the first and second arms can be moved independently.
  • first arm and the second arm 20 each are pivotally mounted on the connecting element via separate pivot axes 31 and 32 . Due to the fact that the first arm 10 and the second arm 20 have no common pivot axes, the geometry of adjustment and movement of the cabin boom 2 can in turn optimally be adjusted.
  • the actuator 25 of the second arm 20 also is disposed below the second arm 20 , so that the same likewise only is under a compressive load.
  • the first and second arms of the cabin boom 2 both are configured as parallel steering arms, so that the operator cabin is forcibly guided parallel to the ground by means of a positive connection. Due to this configuration as parallel steering arms, only the position of the operator cabin 3 , but not its inclination, thus is changed by adjusting the cabin boom 2 .
  • the first arm 10 consists of a main supporting element 12 and a coupling rod 10 , which each are pivotally mounted via pivot points 11 on the bracket 4 and via pivot points 31 on the connecting element 30 .
  • the second arm 20 likewise consists of a main supporting element 22 and a coupling rod 23 , which are pivotally mounted via pivot points 21 on the uppercarriage 5 and via pivot points 32 on the connecting element 30 .
  • the alignment of the pivot points 21 of the second arm 20 on the uppercarriage 5 with respect to each other is obtained automatically from the desired boom reach or height of the cabin boom.
  • the pivot points 21 therefore rather are arranged on a horizontal line, but if a great boom reach is required, the pivot points 21 will be arranged more on a vertical line.
  • the oblique arrangement shown here therefore represents a compromise of boom height and boom reach.
  • the radius of movement of the boom of the invention also can be adjusted correspondingly via the alignment of the pivot points 31 of the first arm 10 on the connecting element.
  • the use of separate pivot axes 31 and 32 of the first and second arms on the connecting element 30 here provides an increased flexibility, with which the desired radii of movement can easily be achieved.
  • the main supporting elements 12 and 22 are configured as closed box profiles, which provides them with an increased stability with a light construction. Cables and tubes to the operator cabin likewise can be passed through the hollow sections in the main supporting elements 12 and 22 .
  • the first actuator 15 associated to the first arm 10 is pivotally mounted on the connecting element 30 via a pivot point 33 , which is located below the pivot points 31 of main supporting element 12 and coupling rod 13 .
  • the first actuator 15 is disposed below the first arm 10 and only is under a compressive load.
  • the first actuator 15 still is pivotally mounted on the first arm 10 via a pivot point 14 , namely on the main supporting element 12 of the parallel steering arm disposed at the bottom.
  • the second actuator 25 associated to the second arm 20 is pivotally mounted on the main supporting element 22 of the second arm 20 likewise configured as a parallel steering arm via a pivot point 24 and via a further pivot point on the uppercarriage of the material handling machine 5 .
  • the actuators are not disposed inside the parallel steering arms, but engage one of the two parallel steering elements from outside, here the main supporting element disposed at the bottom. This provides the advantages already described above in terms of force dissipation and geometry of adjustment.
  • the cabin 3 has been lowered to ground level by the cabin boom and now is located at the level of the undercarriage 6 .
  • the operator either can get into the cabin or material can be loaded onto the platform 7 , which is disposed beside the cabin 3 .
  • the platform 7 likeweise is disposed on the bracket 4 , which is connected with the first arm 10 of the cabin boom.
  • the platform 7 has a railing 9 with an access opening to be closed by a chain.
  • the cabin 3 with the platform 7 is shown again on the left in a front view.
  • the actuators 15 and 25 of the first and second arms 10 and 20 of the cabin boom are within their minimum length in the illustrated position.
  • the arms or the pivot points it would, however, likewise be possible to configure the cabin boom lowerable below ground level, so that it can be positioned e.g. below a quay wall.
  • the cabin boom can be designed correspondingly depending on the application, wherein an increased reach is possible in particular by simply lengthening the arms 10 and 20 , without having to change the geometry of adjustment of the actuators 15 and 25 .
  • FIG. 4 now shows the cabin boom in its docking position on the material handling machine, in which the platform 7 docks onto a platform 8 disposed on the uppercarriage 5 .
  • this provides for directly getting from the operator cabin to the uppercarriage, e.g. for maintenance work. It is likewise possible to transport material onto the uppercarriage 5 and thus use the cabin boom as a material elevator.
  • the platform 8 on the uppercarriage 5 likewise has a railing 40 and can also be reached from the undercarriage 6 via a ladder 41 .
  • FIG. 5 shows a second embodiment of the material handling machine of the invention, which differs from the first embodiment merely in the configuration of the connecting element 30 .
  • the connecting element 30 which on the right is shown again on an enlarged scale in separate views, includes a joint 34 whose swivel axis is vertical to the pivot axes 31 and 32 of the first and second arms. Via this joint 34 , whose swivel axis 34 is arranged vertically, the first arm 10 of the cabin boom and hence the operator cabin itself can laterally be swivelled against the second arm 20 , so that the cabin can be swivelled away from the material handling boom not shown in FIG. 5 , which in the Figure would be disposed behind the cabin boom.
  • the connecting element includes an actuator 35 , by means of which the joint 34 can be moved.
  • the connecting element 30 has a first part 38 and a second part 39 , which are pivotally connected with each other via the joint 34 .
  • first part 38 On the first part 38 , the pivot points 31 of the first arm 10 and the pivot point 33 of the first actuator 15 are located.
  • second part 39 On the second part 39 , the pivot points 32 of the second arm 20 are located.
  • the actuator 35 of the joint 34 is pivotally connected with the first part 38 and the second part 39 of the connecting element 30 via pivot points and thus can adjust the slewing position.
  • the joint 34 on the connecting element 30 thus provides for adjusting the boom height and reach and also the lateral position of the operator cabin, so that almost any desired three-dimensional positioning of the operator cabin becomes possible, which provides for an optimum vision of the material handling site without the material handling boom being impaired in its function. In particular, even with bulky goods to be handled, in which the operator cabin must have a certain distance from the material handling boom, an optimum vision can still be ensured.

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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)
  • Forklifts And Lifting Vehicles (AREA)
  • Manipulator (AREA)
US12/070,764 2007-02-22 2008-02-21 Material handling machine Abandoned US20090250971A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007008776A DE102007008776A1 (de) 2007-02-22 2007-02-22 Umschlaggerät
DE102007008776.6 2007-02-22

Publications (1)

Publication Number Publication Date
US20090250971A1 true US20090250971A1 (en) 2009-10-08

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ID=39323587

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/070,764 Abandoned US20090250971A1 (en) 2007-02-22 2008-02-21 Material handling machine

Country Status (4)

Country Link
US (1) US20090250971A1 (fr)
EP (1) EP1961691B1 (fr)
AT (1) ATE553058T1 (fr)
DE (1) DE102007008776A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016030945A (ja) * 2014-07-29 2016-03-07 コベルコ建機株式会社 建設機械
JP2016030953A (ja) * 2014-07-29 2016-03-07 コベルコ建機株式会社 建設機械
JP2016030944A (ja) * 2014-07-29 2016-03-07 コベルコ建機株式会社 建設機械
US11072000B2 (en) * 2019-05-24 2021-07-27 Scaip S.P.A. Machine, in particular padding machine, to backfill pipelines
US20230078475A1 (en) * 2021-09-14 2023-03-16 Caterpillar Global Mining Equipment Llc System and method for automatic tilting of operator cabin

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2319995B1 (fr) * 2009-11-06 2012-10-03 Caterpillar, Inc. Appareil pour déplacer une plateforme.
RU2761428C1 (ru) * 2021-03-26 2021-12-08 Федеральное государственное бюджетное образовательное учреждение высшего образования «Псковский государственный университет» Устройство аварийного спуска кабины

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US2927705A (en) * 1956-03-07 1960-03-08 Girardi Antonio Lawrence Orchard apparatus
US3253677A (en) * 1963-12-24 1966-05-31 Sterling Prec Corp Vehicle carried boom
US3337000A (en) * 1965-02-03 1967-08-22 Giladi Nachman Aerial platform for picking fruit
US3807575A (en) * 1972-06-13 1974-04-30 Merrick Hydraulics Inc Elevating devices
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016030945A (ja) * 2014-07-29 2016-03-07 コベルコ建機株式会社 建設機械
JP2016030953A (ja) * 2014-07-29 2016-03-07 コベルコ建機株式会社 建設機械
JP2016030944A (ja) * 2014-07-29 2016-03-07 コベルコ建機株式会社 建設機械
US11072000B2 (en) * 2019-05-24 2021-07-27 Scaip S.P.A. Machine, in particular padding machine, to backfill pipelines
US11717855B2 (en) 2019-05-24 2023-08-08 Scaip S.P.A. Machine, in particular padding machine, to backfill pipelines
US12233437B2 (en) 2019-05-24 2025-02-25 Scaip S.P.A. Machine, in particular padding machine, to backfill pipelines
US20230078475A1 (en) * 2021-09-14 2023-03-16 Caterpillar Global Mining Equipment Llc System and method for automatic tilting of operator cabin
US11959249B2 (en) * 2021-09-14 2024-04-16 Caterpillar Global Mining Equipment Llc System and method for automatic tilting of operator cabin

Also Published As

Publication number Publication date
ATE553058T1 (de) 2012-04-15
DE102007008776A1 (de) 2008-08-28
EP1961691A3 (fr) 2011-05-11
EP1961691B1 (fr) 2012-04-11
EP1961691A2 (fr) 2008-08-27

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