GB2140366A - Side-support system for crawler-driven units - Google Patents
Side-support system for crawler-driven units Download PDFInfo
- Publication number
- GB2140366A GB2140366A GB08407510A GB8407510A GB2140366A GB 2140366 A GB2140366 A GB 2140366A GB 08407510 A GB08407510 A GB 08407510A GB 8407510 A GB8407510 A GB 8407510A GB 2140366 A GB2140366 A GB 2140366A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crawler
- support
- driven unit
- unit
- platform
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
- B62D49/08—Tractors having means for preventing overturning or tipping
-
- 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
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/78—Supports, e.g. outriggers, for mobile cranes
- B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
-
- 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
- E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Transportation (AREA)
- Combustion & Propulsion (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
- Road Paving Machines (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Framework For Endless Conveyors (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
A side-support system for increasing the stability of a crawler- driven unit, in which within a space encircled by a track assembly (2) of the unit at least one hydraulic laterally-swingable side-support platform (1) is provided. <IMAGE>
Description
SPECIFICATION
Side-support system for crawler-driven
units
The invention relates to a side-support system
for use on crawler-driven units for increasing
their stability.
Side-support systems for excavators, cranes
and other mobile hoisting or lifting machines are already known and may consist, for example, of support devices which are con
nected to the chassis or the under-carriage via a multi-link hinged system. However, known side-support systems are limited in their extent. In the case of crawler-driven units, the pivot-point of a hinged system, for example, is at best mountable outside the space encircled by the track assembly, at the front or the rear part of such a unit and this results in a limitation of the ground area of the support platforms and consequently also a limitation of the side-thrust of such a unit.Also, because they have to compensate for the small ground area of the side-support platforms by pivotpoints which are far away from the vehicle, such systems limit the working possibilities of crawler-driven units, particularly excavators with a backhoe attachment, since a sufficient compactness of the ground-support area has to be retained.
It is an object of the invention to enable the stability of crawler-driven units to be increased without also increasing the sideways travelling width.
The present invention provides a side support for a crawler-driven unit, in which at least one hydraulic laterally-swingable side-support platform is provided within a space encircled by a track assembly of the unit.
Advantageously, the side-support platform has an area of at least one third of the space encircled by the track assembly.
Preferably, the side-support platform is torsionally-stiff.
In an embodiment of the invention, at least one support bracket is provided perpendicular to the main support surface of the platform, the support bracket being pivotally-coupled to the crawler-driven unit. The support bracket may be pivotally-coupled to the crawler-driven unit at two spaced-apart points. For example, the support bracket may be pivotally-coupled at one of the points to a canter support bracket located between track rollers on the crawler-driven unit and may be pivotally-coupled at one of the points to one end of a hydraulic piston-and cylinder assembly. The piston-and-cylinder assembly may be pivotallycoupled at its other end to a central frame of the crawler-driven unit and may extend through a side plate of the track frame of the crawler-driven unit. Preferably, the piston-andcylinder assembly is provided with non-return valves.
In use, the side-support platform is swingable laterally-outwards to a level below the level of the ground surface to compact the ground. Advantageously the side-support platform is movable into a ground-engaging position, to support the crawler-driven unit, by a force which is less than half the weight of the crawler-driven unit but, when the crawlerdriven unit is an excavator, provides a stability against tipping loads which is larger than the weight of the excavator including a surcharge due to digging.
Preferably, the system includes means operable to ensure that the side-support platform is automatically swung in or has already been swung in prior to the execution of an order to travel for the crawler-driven unit.
By way of example, an embodiment of the invention will now be described with reference to the accompanying drawing, in which:
Figure 1 shows the side-view of a crawlerdriven unit,
Figure 2 shows a section on the line A-B of
Fig. 1, and
Figure 3 shows the plan view of the crawler unit of Fig. 1.
Identical components in the individual figures are marked with identical reference numbers.
Fig. 1 shows the running gear of a crawlerdriven unit with a side-support platform (1) swung out to the side. From the dotted lines, the position of the platform when it is swung in can also be seen and, from this, it is apparent that the side-support platform (1) is designed to be located in the space within the track assembly (2). The side-support platform (1) is large and designed to cover more than one third of the space encircled by the track assembly (2) and, as shown in Fig. 2, it is of box-design so that it is torsionally-stiff. The arrangement (described below) for moving the platform into its outer position is such that although the platform is kept in the direct vicinity of the crawler-driven unit it is far enough out from the unit to increase considerably this ground area of the unit adjacent the tracks.
Fig. 2 shows that at least one support bracket (3) is provided perpendicular to the main plane of each platform (1) and connected to the latter, with the support bracket (3) having a pivot point (4) and a pivot-point fork (5) in its support head. In this embodiment, two support brackets (3) are provided for each platform and, for each bracket, the space between two track rollers (6a and 6b) (see Fig. 1), a respective counter-support bracket (8) is provided at the steel track-frame (7). The pivot point (4) of the support bracket (3) is movably mounted in this counter-support bracket.
Fig. 2 also shows that pivot-point forks with bearing-supports (10a and 10b) are provided in a center frame of the crawler-driven unit, to which bearing-supports, hydraulic cylinders (11 a and 11 b) are connected, there being two cylinders for each support platform (1). Each side-support platform would, in practice, be equipped with two supports for the hydraulic cylinders in order to keep bending-damages as small as possible. Each hydraulic cylinder (see, for example cylinder 1 lea) is led through ports{12a, 12b) in the side plates (13 and 14) of the steel track-frame and the cylinder is at its other end supported in the pivot-point fork (5) of a respective support bracket (3).
Each hydraulic cylinder is equipped in known manner with non-return valves (not shown).
Shown in Fig. 3 are cylinder casings (15 and 16) in the center frame (9) which provide a safe housing for the hydraulic cylinders (11 a, 11 b) of each platform.
In use of the support system shown in the drawings, in order to achieve a certain compacting of the ground in the area contacted by the platforms, the latter are moved by the hydraulic cylinders (11 a, 11 b) until they are below the level of the ground surface. The force of these hydraulic cylinders for this purpose is less than half the weight of the excavator. On the other hand, it is necessary to ensure the stability of the side-support platforms (1) when swung out in case of tipping-loads, which stability should be greater than the force of the weight of the excavator plus a surcharge from digging. In order to ensure this stability, and also in order not to expose the hydraulic hoses and pipes to such stresses, non-return valves are installed in the hydraulic cylinders, as has already been mentioned.
In order not to limit the crawler-driven unit in its mobility, it is ensured (by an automatic inter-connection of all control orders) that each side-support platform (1) is swung in prior to the execution of a travelling control order or, alternatively, a gauge indication may be provided to ensure that it has already been swung in.
The advantage offered by the arrangement shown in the drawing is that a large-sized side-support platform (1) is installed within the space encircled by a track assembly (2), thus giving to the crawler-driven unit an effective support and with it an increase in stability to the sides to such an extent that, over 360 , an almost constant load capacity can be achieved. It is here of importance to note that the travelling width of the crawler-driven unit is not enlarged.
Claims (14)
1. A side-support system for a crawlerdriven unit, in which at least one hydraulic laterally-swingable side-support platform is provided within a space encircled by a track assembly of the unit.
2. A system according to claim 1, in which the side-support platform has an area of at least one third of the space encircled by the track assembly.
3. A system according to claim 1 or claim 2, in which the side-support platform is torsionally-stiff.
4. A system according to any of the preceding claims in which at least one support bracket is provided perpendicular to the main support surface of the platform, the support bracket being pivotally-coupled to the crawlerdriven unit.
5. A system according to claim 4, in which the support bracket is pivotally-coupled to the crawler-driven unit at two spaced-apart points.
6. A system according to claim 5, in which the support bracket is pivotally-coupled at one of the points to a canter support bracket located between track rollers on the crawler-driven unit.
7. A system according to claim 5, in which the support bracket is pivotally-coupled at one of the points to one end of a hydraulic piston-and cylinder assembly.
8. A system according to claim 7, in which the piston-and cylinder assembly is pivotally-coupled at its other end to a central frame of the crawler-driven unit.
9. A system according to claim 8 or claim 9, in which the piston-and cylinder assembly extends through a side plate of the track frame of the crawler-driven unit.
10. A system according to any one of claims 7 to 9, in which the piston-and-cylinder assembly is provided with non-return valves.
11. A system according to any one of the preceding claims, in which the side-support platform is swingable laterally-outwards to a level below the level of the ground surface to compact the ground.
1 2. A system according to any one of the preceding claims, in which the side-support platform is movable into a ground-engaging position, to support the crawler-driven unit, by a force which is less than half the weight of the crawler-driven unit.
1 3. A system according to any one of the preceding claims in which the crawler-driven unit is an excavator and the side-support platform, when in a ground-engaging position has a stability against tipping loads which is larger than the weight of the excavator including a surcharge due to digging.
14. A system according to any one of the preceding claims, including means operable to ensure that the side-support platform is automatically swung in or has already been swung in prior to the execution of an order to travel for the crawler-driven unit.
1 5. A side-support system for a crawlerdriven unit substantially as described herein with reference to, and as shown in, the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833310491 DE3310491A1 (en) | 1983-03-23 | 1983-03-23 | SUPPORT DEVICE ON CHAIN VEHICLES |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8407510D0 GB8407510D0 (en) | 1984-05-02 |
| GB2140366A true GB2140366A (en) | 1984-11-28 |
| GB2140366B GB2140366B (en) | 1986-06-04 |
Family
ID=6194373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08407510A Expired GB2140366B (en) | 1983-03-23 | 1984-03-22 | Side-support system for crawler-driven units |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS59179462A (en) |
| DE (1) | DE3310491A1 (en) |
| FR (1) | FR2543088A1 (en) |
| GB (1) | GB2140366B (en) |
| IT (1) | IT1178373B (en) |
| SE (1) | SE8401589L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590957A (en) * | 2020-12-16 | 2021-04-02 | 深圳先进技术研究院 | Six-foot crawler type construction robot moving platform |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4139881A1 (en) * | 1991-11-29 | 1993-08-26 | Frenzel Otto Bauunternehmen | Construction plant with two methods of locomotion - has caterpillar tracks and hydraulic supports to allow plant to position itself on and off railway tracks |
| DE19544732A1 (en) * | 1995-11-30 | 1997-06-05 | Siegfried Riebsamen | Lifting crane mounted on utility vehicle |
| JP4763119B2 (en) | 1999-08-04 | 2011-08-31 | リープヘル−ヴェルク エーインゲン ゲーエムベーハー | Crawler mounted crane |
| DE29915375U1 (en) * | 1999-08-04 | 2001-01-18 | Liebherr-Werk Ehingen Gmbh, 89584 Ehingen | Crawler crane |
| DE102005047745A1 (en) | 2005-09-28 | 2007-03-29 | Terex-Demag Gmbh & Co. Kg | Movable crane e.g. crawler crane, for lifting load, has four supports, in which two supports are aligned longitudinal to driving direction within track of truck and other supports are aligned transverse to driving direction outside track |
| CN103318146A (en) * | 2012-03-23 | 2013-09-25 | 徐工集团工程机械股份有限公司 | Caterpillar band chassis with constant-voltage landing leg system |
| EP3075914A1 (en) * | 2015-04-02 | 2016-10-05 | Caterpillar SARL | Undercarriage with augmented lateral stability |
| CN112278102A (en) * | 2020-10-31 | 2021-01-29 | 绍兴威格隆泵业有限公司 | Intelligent transportation emergency crawler |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1573651A (en) * | 1967-07-19 | 1969-07-04 | ||
| FR1554844A (en) * | 1967-12-07 | 1969-01-24 | ||
| FR1582095A (en) * | 1968-06-07 | 1969-09-26 | ||
| FR2109307A5 (en) * | 1970-10-12 | 1972-05-26 | Richier Sa | |
| DE3105149C2 (en) * | 1981-01-16 | 1983-03-24 | Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf | Support device for excavators, cranes or the like. |
-
1983
- 1983-03-23 DE DE19833310491 patent/DE3310491A1/en active Granted
-
1984
- 1984-03-20 IT IT47889/84A patent/IT1178373B/en active
- 1984-03-21 FR FR8404368A patent/FR2543088A1/en not_active Withdrawn
- 1984-03-22 GB GB08407510A patent/GB2140366B/en not_active Expired
- 1984-03-22 SE SE8401589A patent/SE8401589L/en not_active Application Discontinuation
- 1984-03-23 JP JP59054563A patent/JPS59179462A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112590957A (en) * | 2020-12-16 | 2021-04-02 | 深圳先进技术研究院 | Six-foot crawler type construction robot moving platform |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59179462A (en) | 1984-10-12 |
| IT8447889A0 (en) | 1984-03-20 |
| FR2543088A1 (en) | 1984-09-28 |
| SE8401589D0 (en) | 1984-03-22 |
| DE3310491A1 (en) | 1984-10-04 |
| DE3310491C2 (en) | 1987-07-16 |
| SE8401589L (en) | 1984-09-24 |
| GB2140366B (en) | 1986-06-04 |
| IT1178373B (en) | 1987-09-09 |
| IT8447889A1 (en) | 1985-09-20 |
| GB8407510D0 (en) | 1984-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |