DE4418785A1 - Weight equaliser for heavy load, tracked crane - Google Patents

Weight equaliser for heavy load, tracked crane

Info

Publication number
DE4418785A1
DE4418785A1 DE19944418785 DE4418785A DE4418785A1 DE 4418785 A1 DE4418785 A1 DE 4418785A1 DE 19944418785 DE19944418785 DE 19944418785 DE 4418785 A DE4418785 A DE 4418785A DE 4418785 A1 DE4418785 A1 DE 4418785A1
Authority
DE
Germany
Prior art keywords
rope
pulley
travel
cable
pivot
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Withdrawn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
DE19944418785
Other languages
German (de)
Inventor
Jan Dr Ing Otten
Alexander Dipl Ing Knecht
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to DE19944418785 priority Critical patent/DE4418785A1/en
Publication of DE4418785A1 publication Critical patent/DE4418785A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/62Constructional features or details
    • B66C23/72Counterweights or supports for balancing lifting couples
    • B66C23/74Counterweights or supports for balancing lifting couples separate from jib
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D7/00Steering linkage; Stub axles or their mountings
    • B62D7/02Steering linkage; Stub axles or their mountings for pivoted bogies
    • B62D7/026Steering linkage; Stub axles or their mountings for pivoted bogies characterised by comprising more than one bogie, e.g. situated in more than one plane transversal to the longitudinal centre line of the vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00Travelling gear incorporated in or fitted to trolleys or cranes
    • B66C9/04Travelling gear incorporated in or fitted to trolleys or cranes to facilitate negotiation of curves

Abstract

The crane largest load movement exceeds 1000 tm and it has a chassis (9) for equalising weights, whose wheel sets are steerable under load about a vertical axis. To end wheel axle (19) is allocated a swivel (steering) drive (17), consisting of a pair of rams (20) and a cable line drive. The cable ends (22, 23) are secured each to the piston rod ends (24) and to a cable pulley (25), after looping round it. The cable pulley is non-rotatably fitted to a vertical rotary pin (26, 27) rotatably mounted on the chassis for the wheel axle. Pref. the rams extend approx. in the travel direction with their longitudinal centre axes.

Description

The invention relates to a weight compensation device for Lifting devices, in particular for heavy-duty crawler cranes, the maximum load moment is over 1000 tm, with a traveling frame for the Balance weights, the wheelsets under load by means of a Swivel drive are pivotable about a vertical axis.

Such weight balancing devices are mobile to the Follow movements of a crane or superstructure. Has the crane a counterweight balancing device that is not mobile, so the crane can only be moved or rotated when the load on the hook is Counterweight balancing device to lift off. In case that the counterweight balancer has a chassis, the Wheels or wheel sets according to the desired direction of movement of the crane be aligned. If the steering drive is strong enough, the Steering movement when the counterbalance carriage is loaded. in the otherwise, if the steering drive is weaker, the  Steering movement takes place when the car is only partially ballasted or the wagon is supported or there is a load on the hook of the crane, so that the chassis of the car is at least partially relieved. Conventional steering drives consist of a crank mechanism operated by one Hydraulic cylinder is driven. Because of this principle, the Steering angle here limited to approx. 100 degrees.

The invention specified in claim 1 is based on the problem Avoiding an uneconomical design larger swivel angle than 95 degrees, i.e. H. Rotational movements between 0 degrees and approx. 180 degrees and these to achieve under high load.

The object is achieved according to the invention in that each wheel axle is assigned a swivel drive consisting of a pair of piston-cylinder units and a cable drive, the cable ends
In each case on the piston rod heads and, wrapping a rope pulley, are fastened to the rope pulley and that the rope pulley is arranged in a rotationally fixed manner on the vertical pivot pin for the wheel axle, which is rotatably mounted on the traveling frame. Such a design is economically feasible to manufacture, the requirement for a rotation angle of up to 180 degrees is met, and the advantage is achieved that the crane with universal counterweight carriage can be maneuvered universally.

In an embodiment of the invention it is provided that the piston-cylinder Units with their central longitudinal axes approximately in the direction of travel run. This arrangement corresponds to the starting position of several in Direction of aligned wheel sets.

Another embodiment is that the piston-cylinder Units with their cylinder housings in the direction of travel Frame parts are automatically pivoted. These  The design enables the cylinder housing to be adjusted even if it is inaccurate attached attachment point on the pulling direction of the rope or Diameter of the rope sheave.

An improvement is given by the fact that on the piston rod heads a first rope thimble, consisting of a small reel with Rope wrap and crimping is provided. This will make the High rope tensile forces are absorbed.

According to other features, it is provided that the pulley two Has rope grooves. The high swivel angle of up to 180 degrees requires a corresponding loop around the sheave, making it advantageous is to assign a separate rope groove to each rope.

This basic idea becomes another significant advantage further developed in that each of the two rope ends in the Inserted rope pulley and there each with a rope thimble and are connected to the sheave by means of a bolt. This will So the desired high angle of rotation with high supporting forces Allows wheelsets.

The further construction provides that the vertical pivot in one vertical bearing tube runs and that on the pivot an axle beam is attached.

According to other features, it is therefore possible that on the axle beam a pendulum axis is arranged.

It is also advantageous that the pendulum axis is without drive or with a travel drive is connected. The intended swing axis is therefore can be used in their arrangement in different functions.  

Finally, it is suggested that the cross to the direction of travel successive wheel sets with their trunnions alternately are pivotally mounted on the chassis, so that alternately forward and after running wheelsets arise. Such an arrangement of the wheel sets also supports the steerability or swiveling of the wheel sets under high load with large swivel angles.

An embodiment of the invention is shown in the drawing and is described in more detail below. Show it

Fig. 1 is an overview illustration in side view of a heavy duty crawler crane with a counterweight device, which consists of a Superlift- counterweight carriage,

Fig. 2 is a perspective view of the weight balancer,

Fig. 3 is a side view of the weight balancer,

Fig. 4 shows a detail A of FIG. 3 in an enlarged view and

Fig. 5 is a vertical section through the pulley with attachment.

As a lifting device 1 according to Fig., A heavy duty crawler crane 1 with a long lattice mast-boom 2, fitted to a counterweight boom 3, which are articulated on a rotatable upper carriage 4. Here, a mobile weight compensation device 6 - connected as a superlift counterweight - is connected to the counterweight boom 3 via a rope or a rod 5 . Is located at the upper carriage 4, a balance weight 7, and the upper carriage 4 is a hinged or by means of a connection 8 to a carriage frame 9 with catwalk 9 for balance weights 10 and 11 of the weight compensation device 6 on both sides. The driving frame 9 is raised by means of support cylinders 12 , which have support plates 12 a, after which the wheel sets 13 , 14 , 15 and 16 , each with two tires 13 a, can be pivoted in the unloaded state by means of a swivel drive 17 , that is to say can be steered by being perpendicular Axes 18 can be rotated. Furthermore, a steering system for a counterbalance car is described, the wheelsets of which can be steered under load. The mentioned support, on the other hand, is used for "parking" (longer standing times with ballast loaded) and for assembly.

The swivel drive 17 is assigned to each wheel axle 19 with the wheel sets 13 to 16 . This consists of a pair of piston-cylinder units 20 , each with a cable drive 21 , the cable ends 22 and 23 on the one hand on the piston rod heads 24 and on the other hand placed around a cable pulley 25 b (with cover plate 25 a) and there, the cable pulley 25 b looping, are attached to the pulley 25 b. The rope pulley 25 b is mounted on a vertical pivot 26, which is rotatably mounted on the traveling frame 9, of a driven pendulum axis 30 or a rotatably supported pivot 27 of a non-driven pendulum axis 31 .

The pivots 26 and 27 each consist of a lower pivot part 28 a and an upper pivot part 28 b. At each of the lower pivot part 28 a there is an axis. The axis consists of a driven pendulum axis 30 or a non-driven pendulum axis 31 . It is driven by a hydraulic motor 32 and a gear 60 .

The upper pivot parts 28 b are each mounted in a bearing tube 33 . Each wheel set 13 to 16 has two tires 13 a in the exemplary embodiment ( FIGS. 1 and 2).

As can still be seen from FIG. 2, the pairs of piston-cylinder units (so-called steering cylinders) 20 with their central longitudinal axes 20 a approximate in the direction of travel 36 (when driving behind - see FIG. 3). They are mounted with their cylinder housing 20 b on frame parts 9 b and pivot pin 9 c which run in the direction of travel 36 and can be set automatically.

The Seilumschlingungen 39 are secured with a first thimble 38 and a bolt 37 to the piston rod heads 24th A compression 40 is used to fasten the rope end 22 or 23 to the rope thimble 38 . An angular encoder 45 , which is held on a fastening 46 , is driven on a vertical axis of rotation 43 via a toothed belt drive 44 . The angle encoder 45 with toothed belt drive 44 is protected by a cover 48 .

According to Fig. 5 end 22 and 23, respectively (see. Fig. 4) a second thimble 49, and a third thimble 50 in the interior of the pulley 25 are in the sheave 25 b housed b for the respective rope.

The cover plate 25 a, the pulley 25 b and the plate 53 are connected to one another and to the pivots 26 , 27 by means of dowel pins 56 and screws 52 . The pivots 26 and 27 are each guided radially via pivot bearings 57 in the bearing tube 33 and abutting against a collar 59 via an axial bearing disk 58 .

The pendulum axis 30 or 31 can be driveless or provided with a travel drive, the z. B. consists of the aforementioned hydraulic motor 32 and the transmission 60 .

Reference list

1 crawler crane
2 lattice booms
3 counterbalance arms
4 superstructures, rotatable
5 rope or rod
6 weight compensation device
7 balance weight
8 connection
9 traveling frames
9 a catwalk
9 b frame parts
9 c pivot pin
10 balance weight
11 balance weight
12 support cylinders
12 a support plate
13 wheelset
13 a tires
14 wheelset
15 wheelset
16 wheelset
17 rotary actuator
18 vertical axis
19 wheel axle
20 piston-cylinder unit
20 a central longitudinal axis
20 b cylinder housing
21 cable gearbox
22 rope end
23 rope end
24 piston rod head
25 pulley
25 a cover plate
25 b rope pulley
26 pivots
27 pivots
28 a lower pivot part
28 b upper pivot part
29
30 swing axle, driven
31 swing axle, not driven
32 hydraulic motor
33 bearing tube
34 limit switches
35 Operator console
36 Direction of travel
37 bolts
38 first rope thimble
39 rope wrap
40 pressing
41
42
43 vertical axis of rotation
44 toothed belt drive
45 encoders
46 attachment
47 marks
48 cover
49 second thimble
50 third rope thimble
51 bolts
52 screws
53 disc
54 thrust bearing washer
55 fastening screws
56 spring pins
57 pivot bearings
58 thrust bearing washer
59 bunch
60 gears
61 disc wheel

Claims (10)

1. Weight compensation device for lifting devices, in particular for heavy-duty crawler cranes, the greatest load moment of which is over 1000 tm, with a travel frame for the counterweights, the wheelsets of which can be swiveled, ie steerable, about a vertical axis by means of a swivel drive, characterized in that each wheel axis ( 19 ) a swivel drive ( 17 ) consisting of a pair of piston-cylinder units ( 20 ) and a cable pull gear is assigned, the cable ends ( 22 ; 23 ) of which are each on the piston rod heads ( 24 ) and a cable pulley ( 25 ) are attached to the rope pulley ( 25 ) and that the rope pulley ( 25 ) is arranged on the vertical pivot ( 26 ; 27 ) for the wheel axle ( 19 ), which is rotatably mounted on the traveling frame ( 9 ).
2. Device according to claim 1, characterized in that the piston-cylinder units ( 20 ) with their central longitudinal axes ( 20 a) approximately in the direction of travel ( 36 ).
3. Device according to one of claims 1 and 2, characterized in that the piston-cylinder units ( 20 ) with their cylinder housing ( 20 b) on in the direction of travel ( 36 ) extending frame parts ( 9 b) are automatically pivotally mounted.
4. Device according to one of claims 1 to 3, characterized in that on the piston rod heads ( 24 ) a first rope thimble ( 38 ), consisting of a small reel with rope wrap ( 39 ) and pressing ( 40 ), is provided.
5. Device according to one of claims 1 to 4, characterized in that the rope sheave ( 25 b) has at least two rope grooves.
6. Device according to one of claims 1 to 5, characterized in that each of the two rope ends ( 22 ; 23 ) in the pulley ( 25 b) and there each with a rope thimble ( 38 ; 49 ; 50 ) and by means of a Bolts ( 37 ) are connected to the pulley ( 25 b).
7. Device according to one of claims 1 to 6, characterized in that the vertical pivot ( 26 ; 27 ) extends in a vertical bearing tube ( 33 ) and that on the pivot ( 26 ; 27 ) an axle bracket ( 60 ) is attached.
8. Device according to one of claims 1 to 7, characterized in that a pendulum axis ( 30 ; 31 ) is arranged on the axle support ( 60 ).
9. Device according to one of claims 1 to 8, characterized in that the pendulum axis ( 30 ; 31 ) is driveless or connected to a travel drive.
10. Device according to one of claims 1 to 9, characterized in that the transverse to the direction of travel ( 36 ) successive wheel sets ( 13 to 16 ) with their pivot ( 26 or 27 ) are pivotally mounted so that alternating leading and trailing wheel sets ( 13 to 16 ) arise.
DE19944418785 1994-05-24 1994-05-24 Weight equaliser for heavy load, tracked crane Withdrawn DE4418785A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944418785 DE4418785A1 (en) 1994-05-24 1994-05-24 Weight equaliser for heavy load, tracked crane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944418785 DE4418785A1 (en) 1994-05-24 1994-05-24 Weight equaliser for heavy load, tracked crane

Publications (1)

Publication Number Publication Date
DE4418785A1 true DE4418785A1 (en) 1995-11-30

Family

ID=6519290

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19944418785 Withdrawn DE4418785A1 (en) 1994-05-24 1994-05-24 Weight equaliser for heavy load, tracked crane

Country Status (1)

Country Link
DE (1) DE4418785A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989087A1 (en) * 1998-09-11 2000-03-29 Liebherr-Werk Ehingen GmbH Crane, preferably Derrick crane
DE19857779A1 (en) * 1998-12-04 2000-06-15 Mannesmann Ag Crane, especially mobile crane
WO2002020333A1 (en) * 2000-09-04 2002-03-14 Aisle-Master Research & Development Limited Steering device for an articulated vehicle
WO2007056970A1 (en) * 2005-11-17 2007-05-24 Terex-Demag Gmbh & Co. Kg Modular counterweight carriage for cranes, in particular for large cranes
DE202006019192U1 (en) * 2006-12-20 2008-05-08 Liebherr-Werk Ehingen Gmbh Mobile large crane
EP2354077A1 (en) * 2010-02-09 2011-08-10 Kobelco Cranes Co., Ltd. Mobile crane having counterweight
EP2289834A3 (en) * 2009-08-26 2013-03-06 Liebherr-Werk Ehingen GmbH Crane
JP2013095283A (en) * 2011-11-01 2013-05-20 Kobelco Cranes Co Ltd Counterweight truck controlling device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676664A (en) * 1952-02-25 1954-04-27 Wooldridge Mfg Company Steering apparatus for motor powered vehicles
US3130597A (en) * 1961-11-22 1964-04-28 Goldberg Max Servo-mechanisms
DE1811176A1 (en) * 1967-12-05 1969-06-19 Nl Kabelfabrieken Nv Cable winder
US3696881A (en) * 1971-06-16 1972-10-10 Harnischfeger Corp Vehicle steering system of the fluid power type and spring centered, spring modulated control cylinder therefor
GB1489680A (en) * 1974-11-11 1977-10-26 Eaton Gmbh Vehicle steering mechanism with hydraulically activated steering cylinder
DE3640183C2 (en) * 1986-01-27 1989-12-21 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Kobe, Jp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676664A (en) * 1952-02-25 1954-04-27 Wooldridge Mfg Company Steering apparatus for motor powered vehicles
US3130597A (en) * 1961-11-22 1964-04-28 Goldberg Max Servo-mechanisms
DE1811176A1 (en) * 1967-12-05 1969-06-19 Nl Kabelfabrieken Nv Cable winder
US3696881A (en) * 1971-06-16 1972-10-10 Harnischfeger Corp Vehicle steering system of the fluid power type and spring centered, spring modulated control cylinder therefor
GB1489680A (en) * 1974-11-11 1977-10-26 Eaton Gmbh Vehicle steering mechanism with hydraulically activated steering cylinder
DE3640183C2 (en) * 1986-01-27 1989-12-21 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Kobe, Jp

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0989087A1 (en) * 1998-09-11 2000-03-29 Liebherr-Werk Ehingen GmbH Crane, preferably Derrick crane
DE19857779A1 (en) * 1998-12-04 2000-06-15 Mannesmann Ag Crane, especially mobile crane
WO2002020333A1 (en) * 2000-09-04 2002-03-14 Aisle-Master Research & Development Limited Steering device for an articulated vehicle
WO2007056970A1 (en) * 2005-11-17 2007-05-24 Terex-Demag Gmbh & Co. Kg Modular counterweight carriage for cranes, in particular for large cranes
CN101309850B (en) * 2005-11-17 2011-02-09 特雷克斯德马格有限公司 Cranes
US8162160B2 (en) 2005-11-17 2012-04-24 Terex Demag Gmbh Modular counterweight carriage for cranes, in particular for large crane
DE202006019192U1 (en) * 2006-12-20 2008-05-08 Liebherr-Werk Ehingen Gmbh Mobile large crane
EP2289834A3 (en) * 2009-08-26 2013-03-06 Liebherr-Werk Ehingen GmbH Crane
EP2354077A1 (en) * 2010-02-09 2011-08-10 Kobelco Cranes Co., Ltd. Mobile crane having counterweight
US8528755B2 (en) 2010-02-09 2013-09-10 Kobelco Cranes Co., Ltd. Mobile crane having counterweight
JP2013095283A (en) * 2011-11-01 2013-05-20 Kobelco Cranes Co Ltd Counterweight truck controlling device

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