AU2021250918B2 - Frame structure with umbrella-shaped carrying device - Google Patents
Frame structure with umbrella-shaped carrying device Download PDFInfo
- Publication number
- AU2021250918B2 AU2021250918B2 AU2021250918A AU2021250918A AU2021250918B2 AU 2021250918 B2 AU2021250918 B2 AU 2021250918B2 AU 2021250918 A AU2021250918 A AU 2021250918A AU 2021250918 A AU2021250918 A AU 2021250918A AU 2021250918 B2 AU2021250918 B2 AU 2021250918B2
- Authority
- AU
- Australia
- Prior art keywords
- seat ring
- caterpillar
- frame
- umbrella
- hinge pin
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000009466 transformation Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000000844 transformation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/10—Bogies; Frames
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Holders For Apparel And Elements Relating To Apparel (AREA)
- Chain Conveyers (AREA)
- Body Structure For Vehicles (AREA)
- Jib Cranes (AREA)
Abstract
The present invention discloses a frame structure with an umbrella-shaped carrying
device, which belongs to the technical field of caterpillar cranes, and includes a main frame
structure. An umbrella-shaped carrying device is welded or assembled at the top of the main
frame structure, and the left and right sides of the main frame structure are rotatably
connected to frame swing legs in the front and back directions, respectively; the frame swing
legs are connected to square holes on a caterpillar rack; a connection part is disposed below a
front end of each frame swing leg; a frame swing leg fixing hinge pin and a limiting hinge pin
are respectively provided at an inner end and an outer end on the connection part; and a first
fixing hole and a second fixing hole in cooperative use with the frame swing leg fixing hinge
pin and the limiting hinge pin are respectively formed at a lower bottom surface in the square
hole. The frame structure with an umbrella-shaped carrying device provided in the present
invention can enable the frame to be adapted to the high carrying capability for a pivoting
support with a large diameter and a high lifting performance requirement when a caterpillar
chassis is in a wide track state, and also meet, when retracted to a small size of an extremely
narrow track, the requirements that the transmission width of the caterpillar chassis does not
exceed a limitation and the frame does not interfere with the caterpillar rack.
3/3
FIG. 5
0~ 0 0
FIG. 6
Description
3/3
FIG. 5
~ 0 0
FIG. 6
The present invention relates to a frame structure with an umbrella-shaped carrying device,
and belongs to the technical field of caterpillar cranes.
A frame is an important force-carrying component of a caterpillar crane, for carrying an
upper load delivered through a pivoting support, and delivering the load to a caterpillar rack.
Threaded holes are evenly distributed on the frame to be connected to the pivoting support.
With transport regulations, the use of environmental requirements more and more stringent, to
be adapted to the limitations of the work sites and regulations, the frame structure of the
caterpillar crane more and more needs to be in a more compact structure to meet requirements
of higher carrying capacity.
For the caterpillar crane to meet the lifting performance requirement, entire machine
stability requirement, and proper grounding specific pressure requirement during lifting
operations, a correspondingly and relatively large size is required; a relatively large track
distance between two caterpillars is also needed; moreover, the caterpillar plate also needs the
sufficient width to disperse the pressure of the entire machine on the ground. For a retractable
caterpillar chassis, the total width of a retracted state is basically decided by the widths of the
two caterpillar and the diameter of the pivoting support; for the conventional product with 50
tons or more, the external width during retracted basically cannot meet less than 3 m. For some
caterpillar crane apparatuses operating in special occasions, no on-site assembling condition is
not met, and a road to be driven is also particularly narrow; it is required to control the external
width of the chassis to be less than 3.0 meters; however, the lifting performance corresponding
to the product of the level of tons is still required. The width of the caterpillar plate is affected
by the grounding specific pressure, and cannot be greatly reduced, which means that the size of
the middle of the frame can only be compressed.
In the prior art, the forms of the frame in the caterpillar crane chassis mainly have the
following two modes: solution I: the frame is connected to the caterpillar rack though the axis pin; at the same time, an extrusion block is disposed on both the frame and the caterpillar rack for balancing the stress of the chassis structure. The frame structure connected to the caterpillar rack through the axis pin can implement the separate transmission of the caterpillar rack and the frame but cannot change the track distance and cannot be operated at a site with limited width. Solution II: the frame and the caterpillar rack are connected through the swing leg (or without a swing leg) and the square hole. For the inserted-typed chassis, the frame and the caterpillar rack are connected to the swing leg and the square hole; the separate transmission of the caterpillar rack and the frame can be implemented, the track can also be changed, and the transmission adaptation and construction site adaptation are stronger. However, for the caterpillar chassis in the narrow track state, it is hard to solve the problem of interference between the frame ring beam and the caterpillar rack, and the width of the conventional products of 50 tons or more is hard to be controlled with in 3 meters.
According to a first aspect, there is provided a frame structure with an umbrella-shaped carrying device, comprising a main frame structure, provided with an umbrella-shaped carrying device; wherein the umbrella-shaped carrying device comprises an upper seat ring and a lower seat ring connected up and down; a diameter of the upper seat ring is greater than a diameter of the lower seat ring; the main frame structure is connected to square holes on a caterpillar rack through frame swing legs; a connection part is disposed at a lower end of a distal part of each frame swing leg; a frame swing leg fixing hinge pin and a limiting hinge pin are respectively provided at an inner end and an outer end on the connection part; a first fixing hole and a second fixing hole in cooperative use with the frame swing leg fixing hinge pin and the limiting hinge pin are respectively formed at a lower bottom surface in the square hole; and a third fixing hole in cooperative use with the frame swing leg fixing hinge pin is separately disposed on a web of the caterpillar rack and located at front and rear sides of two of the square holes, wherein in a first state, each frame swing leg is parallel to the square hole and is perpendicular to the caterpillar rack, the frame swing leg fixing hinge pin is connected to the opposite fixing hole on the caterpillar rack and the limiting hinge pin is connected to the second fixing hole to implement limitation, and wherein in a second state, each frame swing leg is perpendicular to the square hole and is parallel to the caterpillar rack, the frame swing leg fixing hinge pin is connected to the third fixing hole on the caterpillar rack to implement limitation.
In one form, the upper seat ring and the lower seat ring are connected through multiple
vertical plates distributed along a circumferential direction; and inner rings and outer rings of
the multiple vertical plates are respectively fixed through inner rib plates and outer rib plates.
In one form, the upper seat ring and the lower seat ring are connected through a taper ring
plate.
In one form, a backing plate is disposed at an outer side on the frame swing leg.
In one form, lower ends of the vertical plates, the inner rib plates, and the upper seat ring
are in welded connection to the lower seat ring and to the upper seat ring.
In one form, the lower ends of the vertical plates, the inner rib plates, and the upper seat
ring are connected to a bottom plate, the lower seat ring is located below the bottom plate, and
the bottom plate is detachably connected to the lower seat ring.
In one form, threaded holes are formed on both the bottom plate and the lower seat ring,
and the bottom plate is fixed with the lower seat ring through a bolt.
According to a second aspect there is provided a frame structure with an umbrella-shaped
carrying device including a main frame structure, provided with an umbrella-shaped carrying
device; where the umbrella-shaped carrying device comprises an upper seat ring and a lower
seat ring connected up and down; a diameter of the upper seat ring is greater than a diameter of
the lower seat ring; left and right sides of the main frame structure are respectively and rotatably
connected to frame swing legs in a front and back direction; the frame swing legs are connected
to square holes on caterpillar rack; a connection part is disposed at a lower end of a distal part
of the frame swing leg; a frame swing leg fixing hinge pin and a limiting hinge pin are
respectively opened at an inner end and an outer end on the connection part; a first fixing hole
and a second fixing hole in cooperative use with the frame swing leg fixing hinge pin and the
limiting hinge pin are respectively disposed at a lower bottom surface in the square hole; and a third fixing hole in cooperative use with the frame swing leg fixing hinge pin is separately disposed on a web of the caterpillar rack and located at front and rear sides of two of the square holes.
In one form, the upper seat ring and the lower seat ring are connected through multiple vertical plates distributed along a circumferential direction; and inner rings and outer rings of multiple vertical plates are respectively fixed through inner rib plates and outer rib plates.
In one form, the upper seat ring and the lower seat ring are connected through a taper ring plate.
In one form, a backing plate is disposed at an outer side on the frame swing leg.
In one form, lower ends of the vertical plates, the inner rib plates, and the upper seat ring are in welded connection to the lower seat ring and to the upper seat ring.
In one form, the lower ends of the vertical plates, the inner rib plates, and the upper seat ring are connected to a bottom plate, the lower seat ring is located below the bottom plate, and the bottom plate is detachably connected to the lower seat ring.
In one form, threaded holes are disposed on both the bottom plate and the lower seat ring, and the bottom plate is fixed with the lower seat ring through a bolt.
Beneficial effects of the present invention are as follows.
1. The umbrella-shaped carrying device includes an upper seat ring and a lower seat ring connected up and down; a diameter of the upper seat ring is greater than a diameter of the lower seat ring. The upper seat ring and the lower seat ring are connected through multiple vertical plates distributed along a circumferential direction; through transformation, the frame structure can both consider two pivoting supports; the frame with an umbrella-shaped carrying device can use the pivoting support with the large diameter and when removing the umbrella-shaped carrying device, the pivoting support with the small diameter can be used.
2. A connection part is disposed at a lower end of a distal part of the frame swing leg; a frame swing leg fixing hinge pin and a limiting hinge pin are respectively opened at an inner end and an outer end on the connection part; a first fixing hole and a second fixing hole in cooperative use with the frame swing leg fixing hinge pin and the limiting hinge pin are respectively disposed at a lower bottom surface in the square hole; and a third fixing hole in cooperative use with the frame swing leg fixing hinge pin is separately disposed on a web of the caterpillar rack and located at front and rear sides of two of the square holes, so as to facilitate the fixation of the swing leg in a narrow track state; in the most compact structure size, the carrying capability, the rigidity, and the strength are maximized; the width of the caterpillar chassis in the narrow track state does not exceed 3 meters. For the product less than the level of 50 tons, the total width size may be more extreme.
3. According to actual usage requirements, the umbrella-shaped carrying device may be welded on the frame structure, may also be made into an assembling structure, and is connected to the frame structure through bolts to form a new frame structure.
FIG. 1 is a schematic structural diagram of an umbrella-shaped carrying device on a main frame structure in the present invention.
FIG. 2 is a schematic structural diagram of the umbrella-shaped carrying device in the present invention.
FIG. 3 is a schematic structural diagram of a frame structure with an umbrella-shaped carrying device in the present invention.
FIG. 4 is a schematic diagram of a square hole structure and a swing leg axis pin fixing hole on a caterpillar rack in the present invention.
FIG. 5 is a schematic diagram of retraction of a left caterpillar rack extending from a right caterpillar rack in the present invention.
FIG. 6 is a schematic diagram of retraction of caterpillars at two sides to a narrow track state in the present invention.
The reference numerals in the drawings are as follows: 1, frame swing leg; 2, frame swing leg fixing hinge pin; 3, limiting hinge pin; 4, backing plate; 5, square hole; 6, first fixing hole;
7, second fixing hole; 8, third fixing hole; 9, main frame structure; 10, vertical plate; 11,
inner rib plate; 12, upper seat ring; 13, lower seat ring; 14, outer rib plate.
The present invention is further described by combining with the accompanying
drawings; the following embodiments are merely used for more clearly explaining the
technical solutions of the present invention rather than limiting the scope of protection of
the present invention.
As shown in FIG. 3 to FIG. 6, the present invention discloses a frame structure with
an umbrella-shaped carrying device, including a main frame structure 9. Left and right
sides of the main frame structure 9 are respectively and rotatably connected to frame swing
legs 1 in a front and back direction. To meet a greater track distance change requirement, a
swing leg is lengthened, and is changed into a single swing leg to be adapted to a limited
space of the caterpillar rack when the swing leg in a narrow-track traveling state swings
back to be fixed on the caterpillar rack. The frame swing leg 1 is connected to a square hole
on the caterpillar rack; a connection part is disposed at a lower end of a distal part of the
frame swing leg 1; a frame swing leg fixing hinge pin 2 and a limiting hinge pin 3 are
respectively opened at an inner end and an outer end on the connection part; a first fixing
hole 6 and a second fixing hole 7 in cooperative use with the frame swing leg fixing hinge
pin 2 and the limiting hinge pin 3 are respectively disposed at a lower bottom surface in
the square hole 5; and a third fixing hole 8 in cooperative use with the frame swing leg
fixing hinge pin 2 is separately disposed on a web of the caterpillar rack and located at
front and rear sides of two of the square holes 5. A backing plate 4 is disposed at an outer
side on the caterpillar rack through the frame swing leg 1. Adjusting the thickness of the
backing plate 4 can fill a gap between the frame swing leg 1 and the caterpillar rack square
hole 5.
The use mode of the frame structure with the umbrella-shaped carrying device is as
follows: in a working state, the frame swing leg 1 is parallel to the square hole 5 and is
perpendicular to the caterpillar rack web; the frame swing leg fixing hinge pin 2 is
connected to the opposite first fixing hole 6 on the caterpillar rack and the limiting hinge pin 3 is connected to the second fixing hole 7 to implement limitation. The frame swing leg 1 in a narrow track state is perpendicular to the square hole 5 and is parallel to the caterpillar rack web and the frame swing leg fixing hinge pin 2 is connected to the third fixing hole 8 on the caterpillar rack to implement limitation.
On the basis of a frame structure of a traditional inserting-typed caterpillar chassis, in the
present invention, an umbrella-shaped carrying device is added, as shown in FIG. 1 and FIG. 2.
The umbrella-shaped carrying device diverges outwards from a middle structure of the frame;
the frame structure may be connected to a pivoting support with a large diameter; the structure
is compact; and it can be ensured that the caterpillar rack would not be interfered with the frame
when retracted into an extremely narrow track state. The umbrella-shaped carrying device
consists of an upper seat ring 12, a lower seat ring 13, vertical plates 10, inner rib plates 11, and
outer rib plates 14, and gradually diverges from bottom to top, to ensure that the upper seat ring
12 can be connected to the pivoting support with a large diameter. The diameter of the upper
seat ring 12 is greater than the diameter of the lower seat ring 13. The upper seat ring 12 and
the lower seat ring 13 are connected through multiple vertical plates 10 distributed along a
circumferential direction; and a ring of vertical plates 10 functions as supporting the upper seat
ring 12. Inner rings and outer rings of the multiple vertical plates 10 are respectively fixed
through the inner rib plates 11 and outer rib plates 14. The inner rib plates 11 and outer rib plates
14 constitute a polygon to connect the vertical plates 10 to the lower seat ring 13 and the upper
seat ring 12, to form a box-shaped structure, which has good strength and rigidity. At the same
time, the upper and lower seat ring connection structure constituted by the vertical plates 10,
the inner rib plates 11, and the outer rib plates 14 can also be connected using different numbers
of taper ring plates with or without the rib plates.
The umbrella-shaped carrying device may be a welded type or assembled type; the welded
type refers to the structure shown in FIG. 2; the lower ends of the vertical plates 10, the inner
rib plates 11, and the outer rib plates 14 are welded and connected to the lower seat ring 13. If
the lower seat ring 13 is reserved, the inner rib plates 11, the outer rib plates 14, and the vertical
plates 10, and the upper seat ring 12 are removed by cutting, to be adapted to a pivoting support
with a small diameter. The assembled type may add a bottom plate below the vertical plates 10, the inner rib plates 11, and the outer rib plates 14. The lower seat ring 13 is located below the bottom plate; the bottom plate is detachably connected to the lower seat ring 13.
Specifically, the bottom plate is provided with the threaded holes and is connected to the
lower seat ring 13 through bolts. The upper seat ring 12, the vertical plates 10, the inner rib
plates 11, the outer rib plates 14, and the bottom plate form an assembled type umbrella
shaped carrying device; after detaching the bottom plate, the lower seat ring 13 can be
adapted to the pivoting support with a small diameter.
It will be appreciated that the above described arrangement enables the frame to both
be adapted to the high carrying capability for the pivoting support with a large diameter
and a high lifting performance requirement when the caterpillar chassis is in a wide track
state, and also meet, when retracted to a small size of an extremely narrow track, the
requirements that the transmission width of the caterpillar chassis does not exceed a
limitation and the frame does not interfere with the caterpillar rack.
The contents above only relate to preferable implementations of the present invention.
It should be indicated that: for a person of ordinary skill in the art, several transformations
and improvements can further be made without departing from the idea of the present
invention. These transformations and improvements should also be regarded as the
protection scope of the present invention.
The reference to any prior art in this specification is not, and should not be taken as,
an acknowledgement or any form of suggestion that such prior art forms part of the
common general knowledge.
It will be understood that the terms "comprise" and "include" and any of their
derivatives (e.g. comprises, comprising, includes, including) as used in this specification,
and the claims that follow, is to be taken to be inclusive of features to which the term refers,
and is not meant to exclude the presence of any additional features unless otherwise stated
or implied.
In some cases, a single embodiment may, for succinctness and/or to assist in
understanding the scope of the disclosure, combine multiple features. It is to be understood that in such a case, these multiple features may be provided separately (in separate embodiments), or in any other suitable combination. Alternatively, where separate features are described in separate embodiments, these separate features may be combined into a single embodiment unless otherwise stated or implied. This also applies to the claims which can be recombined in any combination. That is a claim may be amended to include a feature defined in any other claim. Further a phrase referring to "at least one of' a list of items refers to any combination of those items, including single members. As an example, "at least one of: a, b, or c" is intended to cover: a, b, c, a-b, a-c, b-c, and a-b-c.
Claims (7)
1. A frame structure with an umbrella-shaped carrying device, comprising a main
frame structure, provided with an umbrella-shaped carrying device; wherein the umbrella
shaped carrying device comprises an upper seat ring and a lower seat ring connected up
and down; a diameter of the upper seat ring is greater than a diameter of the lower seat
ring; the main frame structure is connected to square holes on a caterpillar rack through
frame swing legs; a connection part is disposed at a lower end of a distal part of each frame
swing leg; a frame swing leg fixing hinge pin and a limiting hinge pin are respectively
provided at an inner end and an outer end on the connection part; a first fixing hole and a
second fixing hole in cooperative use with the frame swing leg fixing hinge pin and the
limiting hinge pin are respectively formed at a lower bottom surface in the square hole;
and a third fixing hole in cooperative use with the frame swing leg fixing hinge pin is
separately disposed on a web of the caterpillar rack and located at front and rear sides of
two of the square holes, wherein in a first state, each frame swing leg is parallel to the
square hole and is perpendicular to the caterpillar rack, the frame swing leg fixing hinge
pin is connected to the first fixing hole on the caterpillar rack and the limiting hinge pin is
connected to the second fixing hole to implement limitation, and wherein in a second state,
each frame swing leg is perpendicular to the square hole and is parallel to the caterpillar
rack, the frame swing leg fixing hinge pin is connected to the third fixing hole on the
caterpillar rack to implement limitation.
2. The frame structure with an umbrella-shaped carrying device according to claim 1,
wherein the upper seat ring and the lower seat ring are connected through multiple vertical
plates distributed along a circumferential direction; and inner rings and outer rings of the
multiple vertical plates are respectively fixed through inner rib plates and outer rib plates.
3. The frame structure with an umbrella-shaped carrying device according to claim 1,
wherein the upper seat ring and the lower seat ring are connected through a taper ring plate.
4. The frame structure with an umbrella-shaped carrying device according to claim 1,
wherein a backing plate is disposed at an outer side on the frame swing leg.
5. The frame structure with an umbrella-shaped carrying device according to claim 2,
wherein lower ends of the vertical plates, the inner rib plates, and the upper seat ring are in
welded connection to the lower seat ring and to the upper seat ring.
6. The frame structure with an umbrella-shaped carrying device according to claim 2,
wherein the lower ends of the vertical plates, the inner rib plates, and the upper seat ring are
connected to a bottom plate, the lower seat ring is located below the bottom plate, and the
bottom plate is detachably connected to the lower seat ring.
7. The frame structure with an umbrella-shaped carrying device according to claim 6,
wherein threaded holes are formed on both the bottom plate and the lower seat ring, and the
bottom plate is fixed with the lower seat ring through a bolt.
),*
),*
),* ),*
),* ),*
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021109522613 | 2021-08-19 | ||
| CN202110952261.3A CN113619699B (en) | 2021-08-19 | 2021-08-19 | Frame structure with umbrella-shaped bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2021250918A1 AU2021250918A1 (en) | 2023-03-09 |
| AU2021250918B2 true AU2021250918B2 (en) | 2023-08-24 |
Family
ID=78386512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021250918A Active AU2021250918B2 (en) | 2021-08-19 | 2021-10-14 | Frame structure with umbrella-shaped carrying device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113619699B (en) |
| AU (1) | AU2021250918B2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402377A (en) * | 2008-11-21 | 2009-04-08 | 北京市三一重机有限公司 | Expandable caterpillar band underpan and caterpillar band type engineering machine with the underpan |
| CN102900363A (en) * | 2012-11-09 | 2013-01-30 | 上海中联重科桩工机械有限公司 | Crawler chassis, rotary drilling rig and transportation method of crawler chassis |
| CN204846097U (en) * | 2015-07-24 | 2015-12-09 | 上海中联重科桩工机械有限公司 | Lower frame structure of rotary drilling rig and rotary drilling rig |
| US10780919B2 (en) * | 2017-01-10 | 2020-09-22 | Tadano Mantis Corporation | Asymmetrical track crawler positioning system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4220807B2 (en) * | 2003-03-10 | 2009-02-04 | 株式会社小松製作所 | Construction machinery crawler frame |
| CN201762037U (en) * | 2010-08-31 | 2011-03-16 | 辽宁抚挖重工机械股份有限公司 | Lower car body of caterpillar crane |
| GB2504135A (en) * | 2012-07-20 | 2014-01-22 | Bamford Excavators Ltd | Work Machine Chassis |
| CN102774438A (en) * | 2012-08-09 | 2012-11-14 | 徐工集团工程机械股份有限公司 | Crawler-type chassis structure and engineering mechanical device |
| CN203666774U (en) * | 2013-11-06 | 2014-06-25 | 徐州重型机械有限公司 | Base ring support and wheeled crane chassis frame structure |
-
2021
- 2021-08-19 CN CN202110952261.3A patent/CN113619699B/en active Active
- 2021-10-14 AU AU2021250918A patent/AU2021250918B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402377A (en) * | 2008-11-21 | 2009-04-08 | 北京市三一重机有限公司 | Expandable caterpillar band underpan and caterpillar band type engineering machine with the underpan |
| CN102900363A (en) * | 2012-11-09 | 2013-01-30 | 上海中联重科桩工机械有限公司 | Crawler chassis, rotary drilling rig and transportation method of crawler chassis |
| CN204846097U (en) * | 2015-07-24 | 2015-12-09 | 上海中联重科桩工机械有限公司 | Lower frame structure of rotary drilling rig and rotary drilling rig |
| US10780919B2 (en) * | 2017-01-10 | 2020-09-22 | Tadano Mantis Corporation | Asymmetrical track crawler positioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2021250918A1 (en) | 2023-03-09 |
| CN113619699B (en) | 2022-05-24 |
| CN113619699A (en) | 2021-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3830376A (en) | Telescopic jib and bearing means therefor | |
| US7478835B2 (en) | Travel unit for mobile machines | |
| US20140224555A1 (en) | Telescopic Crawler Chassis and Engineering Machinery Having the Same | |
| CN102229415A (en) | Crane and movable-type balance weight mechanism thereof | |
| US4160558A (en) | Carrier frame for mobile crane | |
| US10112661B2 (en) | Track hitching structure for wheeled crane and wheeled crane | |
| CN101717049A (en) | Trunnion transportation system and crane using same | |
| CN202491789U (en) | Track chassis provided with constant-pressure landing leg systems | |
| CN102320331B (en) | Traveling vehicle chassis | |
| AU2021250918B2 (en) | Frame structure with umbrella-shaped carrying device | |
| US20130142606A1 (en) | Implement with a boom | |
| US20100155355A1 (en) | Rotary Joint | |
| CN102491192A (en) | Tower crane introduction platform structure | |
| US6360905B1 (en) | Crawler-mounted crane with detachable lateral stablizers | |
| JP2006348701A (en) | Crawler type working vehicle | |
| US4609204A (en) | Extension for outrigger beam | |
| AU2019408142B2 (en) | Front axle structure of mining dump truck | |
| US20140326330A1 (en) | Wheeled material distributing machinery | |
| CN216865309U (en) | Chassis and working machine | |
| CN204661179U (en) | Jib structure, boom system and hoisting crane | |
| CN206344905U (en) | A kind of transport trailer and parts transportation system | |
| US20040124166A1 (en) | Mobile crane substructure | |
| CN212981755U (en) | Container turnover straddle carrier | |
| CN210653405U (en) | Crawler chassis and engineering vehicle | |
| CN207524923U (en) | A kind of double-deck auxiliary frame structure of high-altitude operation vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |