EP1020397A2 - Montage de roue - Google Patents

Montage de roue Download PDF

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Publication number
EP1020397A2
EP1020397A2 EP99660181A EP99660181A EP1020397A2 EP 1020397 A2 EP1020397 A2 EP 1020397A2 EP 99660181 A EP99660181 A EP 99660181A EP 99660181 A EP99660181 A EP 99660181A EP 1020397 A2 EP1020397 A2 EP 1020397A2
Authority
EP
European Patent Office
Prior art keywords
wheel mounting
frame
rocking arm
wheel
working machine
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.)
Withdrawn
Application number
EP99660181A
Other languages
German (de)
English (en)
Other versions
EP1020397A3 (fr
Inventor
Seppo Karppelin
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.)
Liftec Products Oy
Original Assignee
Liftec Products 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.)
Filing date
Publication date
Application filed by Liftec Products Oy filed Critical Liftec Products Oy
Publication of EP1020397A2 publication Critical patent/EP1020397A2/fr
Publication of EP1020397A3 publication Critical patent/EP1020397A3/fr
Withdrawn legal-status Critical Current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
    • B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/10—Undercarriages or bogies, e.g. end carriages, end bogies
    • B66C9/12—Undercarriages or bogies, e.g. end carriages, end bogies with load-distributing means for equalising wheel pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • B66C19/007—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries for containers

Definitions

  • the invention relates to a wheel mounting to be used in working machines for moving loads and transport containers in particular, such as carriages for lifting and moving and so-called straddle carriers.
  • the wheel mounting comprises at least two pairs of wheels arranged movable vertically with respect to the frame of the working machine.
  • the load to be supported is arranged to rest on the frame.
  • the purpose of this invention is to present a wheel mounting by means of which the drawbacks present in the prior art can be eliminated to a large extent, thus improving the state of art prevailing in the field.
  • the wheel mounting according to the invention is primarily characterized in that
  • an advantage attained with the present solution is that the loadings exerted on the wheel pairs in the horizontal direction either in the direction of motion of the wheels or in a direction transverse to the direction of motion of the wheels, and on the other hand the vertical loadings exerted on the wheels can be distributed in such a way that the horizontal loadings are received with vertical bearing means, especially with supporting bars, wherein the means which is effective in the vertical direction and is connected in an articulated manner to the middle part of the rocking arm to transmit the movements of the rocking arm, only receives the vertical loadings and movements exerted on the wheels, wherein the means in question can be advantageously used to balance the wheel loadings between the pairs of wheels located at the same point in the transverse direction of the working machine.
  • the above-presented loading distribution makes it possible to achieve an optimal structure in view of the strength of materials.
  • the wheels 1 of the wheel mounting according to the invention which are successive with respect to the frame R of a working machine, are mounted on bearings in the frame R of the working machine, especially in the presented embodiment in a case-like horizontal beam 2 extending in the longitudinal direction of the frame R, to move vertically with respect to the frame.
  • the length of the slide bearing arrangement i.e. the section in which the support bars 4 and the sleeves 5 face each other, can be approximately 1000 mm, preferably at least 700 to 800 mm.
  • the vertical bearing arrangement receives the horizontal loadings exerted by the wheels 1 on the wheel mounting, and the rest of the parts of the wheel mounting which are located above the horizontal beam 2, are only subjected to the forces which are exerted on the wheels 1 in the vertical direction.
  • the bearing means especially the supporting bars 4, are connected together in pairs in an articulated manner (articulation points 6 and 7) in the wheel mounting on the same longitudinal side of the working machine by means of a rocking arm 8, which is arranged to rotate around a horizontal joint 9 in the vertical plane.
  • the horizontal joint 9 is detached from the frame R, and thus the rocking arm 8 also moves as a whole in the vertical direction in accordance with the wheel loadings.
  • the middle part of the rocking arm 8, i.e. the horizontal joint 9 is connected to a member 10 which is effective in the vertical direction and transmits the movements of the rocking arm 8, the member 10 being attached with a horizontal joint 11 to the vertical beam 12 in the frame of the working machine according to the embodiment of Figs. 1 and 2.
  • the rocking arm 8 When unloaded, the rocking arm 8 extends in the horizontal direction, i.e. the articulation points 6 and 7 are on the same horizontal line.
  • the member 10 which is effective in the vertical direction and transmits the movements of the rocking arm 8 is a cylinder piston-combination 10' which operates by means of a pressurized medium, especially by means of hydraulic fluid.
  • the bearing means especially the supporting bars 4 are equipped with a horizontal bearing arrangement 13 in the upper part of the supporting bars, i.e. above the upper surface of the horizontal beam 2 and underneath the articulation points 6 and 7, wherein the lower part of the supporting bars 4 and the wheels connected thereto can be turned around the vertical axis of the supporting bars 4 by means of a turning apparatus which is attached to the supporting bars and corresponds to for example the apparatus shown in Fig. 4.
  • the upper part of the second bearing means such as the supporting bar 4 is provided with a means 14 for balancing the movements of the rocking arm 8 and the supporting bars 4.
  • the rocking bar 8 performs a vertical movement and a rotary movement around the joint 9 in the vertical direction as a result of the loadings exerted on the wheels 1).
  • the balancing means 14 is composed of a vertical (in the horizontal position of the rocking arm 8) articulated lug 15, which is journalled on one hand to the corresponding end of the rocking arm 8 with a joint 7, and on the other hand to the upper end of the supporting bar 4 with a horizontal joint 16.
  • the rotary movements of the rocking arm 8 around the joint 9 do not produce a deflection or flexural stresses to the supporting bars 4 via the rocking arm 8, because the joint 7 is capable of moving sufficiently (while the articulated lug 15 rotates on the vertical plane) also in the horizontal direction in accordance with the rotation of the rocking arm 8, and this movement compensates for the horizontal deviation in the distance caused by the rotary movement of the ends (articulation points 6 and 7) of the rocking arm along the periphery of a circle.
  • the wheel mounting according to the invention functions as an equalizer of the wheel loadings which are due to the unevenness of the ground on which the working machine is located in such a way according to the first embodiment of the invention that when the wheel pair in the first wheel mounting PR1 on the right in Fig.
  • the supporting bar 4 moves a corresponding distance in the vertical direction with respect to the frame R, thus transmitting a vertical motion effect S/2 (leverage effect) to a pressurized medium operated cylinder-piston combination 10 via the rocking arm 8, which effect is transmitted in a corresponding downward directed movement S/2 to a cylinder-piston combination 10a of the second wheel mounting PR2 located in a corresponding point in the transverse direction of the working machine, wherein the supporting bars 4a move vertically downward with respect to the frame R.
  • S/2 leadage effect
  • the frame R of the working machine has a downward directed U-shape when viewed from the end of the working machine, wherein a change of length H-S/2 takes place at the location of the first wheel mounting PR1, and a change of length H + S/2 takes place at the second wheel mounting PR2.
  • H is the height of the frame of the working machine when the frame is unloaded in the aforementioned way, i.e. the cylinder-piston combinations contain an equal amount of pressurized medium.
  • the pressurized medium is transferred from one cylinder-piston combination to another along a transfer line 17 for the pressurized medium coupled therebetween, in such a way that the total space for the pressurized medium which is filled by the pressurized medium remains constant in both cylinder-piston combinations.
  • the transfer line 17 is coupled between the same parts in their cylinder volumes.
  • the wheel mounting according to the invention has a second preferred embodiment for the part of the means transmitting the movements of the rocking arm, wherein the means which is effective in the vertical direction and transmits the movements of the rocking arm, is a vertical articulated arm 18 or the like connected to the joint 9 (cf. Figs. 1 and 2).
  • the articulated arms 18 are connected to the upper part the frame R, to rotate in the vertical plane by means of a centrally articulated connecting arm 19, a horizontal joint 20 being attached to the horizontal beam 21 of the frame R.
  • the articulated arms 18 are articulated with horizontal joints 18a to the ends of the connecting arm 19 in such a way that they are effective in the vertical direction.
  • arrows M indicate the effect of means intended for preventing the tilting of the frame R of the working machine, the more detailed structure of the means being described in connection with Fig. 5.
  • the means for preventing the tilting of the frame within the range of the vertical margin of motion of the wheel mountings pair PR1 and PR2 produce a torque M, which resists the tilting of the frame R in the lateral direction and thus allows the above-described equalizing function of the wheel mounting pairs PR1 and PR2.
  • Fig. 4 shows a common turning mechanism KM of two wheel mountings PR1a, PR1b, which are located successively on the same side of the working machine, the turning mechanism being coupled in connection with the horizontal beam 2.
  • the turning mechanism is driven by a pressurized medium operated actuator, such as a hydraulic cylinder-piston combination 22, connected to the pressurized medium system of the working machine.
  • the cylinder-piston combination 22 is articulated to the frame R in the horizontal direction.
  • One end of the cylinder-piston combination 22 is connected to a lug 23, one end thereof being articulated to the frame R.
  • the rotation of the lug 23 in the horizontal plane is transmitted to a transfer bar structure placed between the wheel mounting pairs PR1a, PR1b, especially to the lug 24 of the transfer bar structure, which is centrally articulated to rotate on the horizontal plane in accordance with the movements of the cylinder-piston combination 22 and the lug 23.
  • a transfer bar structure placed between the wheel mounting pairs PR1a, PR1b, especially to the lug 24 of the transfer bar structure, which is centrally articulated to rotate on the horizontal plane in accordance with the movements of the cylinder-piston combination 22 and the lug 23.
  • the articulation 28, in turn, is connected to the lugs 29 in both turning apparatuses 27.
  • the lug 29, in turn, is connected to the supporting bar 4 of the wheel mounting located at the point in question, underneath the bearing arrangement point as described above in connection with Fig. 1. Furthermore, both turning apparatuses 27 are provided with a transmission bar 30 which is articulated on one hand to the lug 29, and on the other hand to a lug 31 (articulation points 32 in the lug 29 and articulation point 33 in the lug 31), connected to the second wheel of the wheel mounting PR1a, PR1b in question.
  • the lug 31, in turn, is connected rigidly to the supporting bar 4 in question in the manner described in connection with Fig. 1.
  • the wheel mounting PR1a can constitute a part of the balancing structure of Figs. 1 to 3 for wheel loadings.
  • the second wheel mounting PR1b functions for example in a structure according to Fig. 5 as a part of the means for preventing the tilting of the frame, wherein the rocking arm 8 is directly journalled to the vertical beam 12 of the frame at the location of the joint 9, wherein the joint 9 is rigidly connected and stationary with respect to the frame, and at the location of the wheel mounting PR1b in question, there are no means 10 of Figs. 1 to 3 to transmit the vertical movements of the rocking arm.
  • the wheel mounting PR1b resists the tilting of the frame R and produces a torque effect, shown with an arrow M in Figs. 2 and 3 to produce the development of the balancing function.
  • a so-called three-point support is attained in the frame of the working machine, i.e. the wheel mountings PR1a on the balancing end of the wheel mountings produce a support reaction, which is shown with an arrow TT in Fig. 5, and which is located centrally in the horizontal beam 21 located at the respective wheel mounting pair PR1a of the frame R, the horizontal beam 21 extending horizontally between the vertical beams 12.
  • the three-point supports and other supporting points are produced at the location of the wheels of the wheel mounting pair PR1b. These supporting effects are shown with arrows TT1 and TT2.
  • TT1 and TT2 At the location of the wheel mounting pair PR1b there is a corresponding tier of beams (parts 12', 21') which has the shape of an upside-down turned U and which forms a part of the frame R.
  • the horizontal beams 2 connect the lower parts of the vertical beams 12, 12' to each other.
  • the transverse horizontal beams 21, 21' in the upper part of the frame R are connected to each other with at least one longitudinal and horizontal ridge beam 34.
  • Fig. 5 shows schematically a so-called straddle carrier, which is a working machine moving independently with a motorization of its own. It is obvious that the wheel mounting according to the invention can also be utilized in carriages for lifting and moving, in which the wheel mountings PR1b (Fig. 5) are replaced with a wheelwork of a driving vehicle, such as a forklift which is driven underneath the frame R. It is advantageous to equip the wheel mounting PR1, PR2 of Figs. 2 and 3 with locking devices to lock the frame R and the means 10 immovable with respect to each other when necessary.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Agricultural Machines (AREA)
  • Handcart (AREA)
EP99660181A 1999-01-11 1999-11-26 Montage de roue Withdrawn EP1020397A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990035A FI990035A0 (fi) 1999-01-11 1999-01-11 Pyöräripustus
FI990035 1999-01-11

Publications (2)

Publication Number Publication Date
EP1020397A2 true EP1020397A2 (fr) 2000-07-19
EP1020397A3 EP1020397A3 (fr) 2004-05-12

Family

ID=8553301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99660181A Withdrawn EP1020397A3 (fr) 1999-01-11 1999-11-26 Montage de roue

Country Status (2)

Country Link
EP (1) EP1020397A3 (fr)
FI (1) FI990035A0 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032706A1 (fr) * 2009-09-17 2011-03-24 Pfenning Elektroanlagen Gmbh Véhicule de levage à portique destiné aux terminaux de conteneurs, et à des tâches générales de transport
CN102431894A (zh) * 2011-11-23 2012-05-02 株洲天桥起重机股份有限公司 一种水平轮位移调节方法及位移可调的水平轮组
CN104944169A (zh) * 2014-03-26 2015-09-30 中国有色（沈阳）冶金机械有限公司 一种半门式刮板取料机的运行机构
KR101559095B1 (ko) 2014-04-24 2015-10-12 주식회사 알티자동화 클린 로봇

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348711A (en) 1965-06-28 1967-10-24 Emery T Gove Straddle type carrier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE368539C (de) * 1923-02-06 Stockfleth M Fahrgestell fuer schwere Hebezeuge
DE635694C (de) * 1936-09-22 Mitteldeutsche Stahlwerke Akt Anordnung zum Belastungsausgleich bei mehr als zwei Fahrwerksgruppen fuer Foerderbruecken o. dgl.
US3081883A (en) * 1960-08-03 1963-03-19 Manning Maxwell & Moore Inc Steerable gantry crane
SE449091B (sv) * 1984-11-19 1987-04-06 Hadar Jansson Kombinationstruck av typen grensletruck
DE4230854A1 (de) * 1992-09-15 1994-03-17 Panther Gmbh Herstellung Vertr Laufradanordnung
AU5238893A (en) * 1993-01-04 1994-07-14 Energy Absorption Systems Inc. Highway barrier transporter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348711A (en) 1965-06-28 1967-10-24 Emery T Gove Straddle type carrier

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011032706A1 (fr) * 2009-09-17 2011-03-24 Pfenning Elektroanlagen Gmbh Véhicule de levage à portique destiné aux terminaux de conteneurs, et à des tâches générales de transport
CN102686502A (zh) * 2009-09-17 2012-09-19 普芬宁埃列克特罗安拉根有限公司 用于集装箱码头和用于一般运输目的的跨车
CN102686502B (zh) * 2009-09-17 2015-01-21 普芬宁埃列克特罗安拉根有限公司 用于集装箱码头和用于一般运输目的的跨车
CN102431894A (zh) * 2011-11-23 2012-05-02 株洲天桥起重机股份有限公司 一种水平轮位移调节方法及位移可调的水平轮组
CN104944169A (zh) * 2014-03-26 2015-09-30 中国有色（沈阳）冶金机械有限公司 一种半门式刮板取料机的运行机构
KR101559095B1 (ko) 2014-04-24 2015-10-12 주식회사 알티자동화 클린 로봇

Also Published As

Publication number Publication date
FI990035A0 (fi) 1999-01-11
EP1020397A3 (fr) 2004-05-12

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