CN114772478A - Truss arm section, truss arm and operation machine - Google Patents
Truss arm section, truss arm and operation machine Download PDFInfo
- Publication number
- CN114772478A CN114772478A CN202210254302.6A CN202210254302A CN114772478A CN 114772478 A CN114772478 A CN 114772478A CN 202210254302 A CN202210254302 A CN 202210254302A CN 114772478 A CN114772478 A CN 114772478A
- Authority
- CN
- China
- Prior art keywords
- arms
- arm
- truss arm
- pin
- truss
- 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
Images
Classifications
-
- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
-
- 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
- B66C23/18—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 specially adapted for use in particular purposes
- B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
-
- 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
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of engineering machinery, and provides a truss arm section, a truss arm and an operation machine, wherein the truss arm section comprises two half arms, the extending directions of the two half arms are parallel to each other, and the distribution directions of the two half arms are vertical to the extending directions of the half arms; the connecting assembly is arranged between the two half arms and comprises a locking piece and at least two connecting pieces, two ends of each connecting piece are respectively connected with the two half arms in a rotating mode, the rotating axis is perpendicular to the distribution direction of the two half arms, the locking piece can be switched between a first state and a second state, the connecting pieces can rotate relative to the half arms in the first state, and the locking piece limits the connecting pieces to rotate relative to the half arms in the second state. So set up, switch over the locking piece to first state, through making the connecting piece rotate for half arm, can adjust the distance between two half arms, reduce the holistic transverse width of truss arm section, solved the restricted problem of crawler crane's the cantilever crane transportation that exists among the prior art.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a truss arm section, a truss arm and operation machinery.
Background
The large-tonnage and super-tonnage crawler cranes have high requirements on the bearing capacity, so the width of the arm support is relatively large. However, due to the clear limitation of the road transportation regulations on the width dimension of the transported objects, if the width dimension of the arm support exceeds the specified limitation dimension, the transportation cost is increased, and even the transportation is impossible.
Therefore, how to solve the problem of limited boom transportation of the crawler crane in the prior art becomes an important technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention provides a truss arm section, a truss arm and an operating machine, which are used for solving the defect that the boom transportation of a crawler crane is limited in the prior art.
The invention provides a truss arm section, comprising:
the extending directions of the two half arms are parallel to each other, and the distribution direction of the two half arms is vertical to the extending direction of the half arms;
coupling assembling sets up two between half arm, coupling assembling includes lock piece and two at least connecting pieces, the both ends of connecting piece respectively with two half arm is rotated and is connected, and axis of rotation is perpendicular with two half arm's distribution direction, the lock piece can switch between first state and second state under the first state, the connecting piece can for half arm rotates under the second state, the restriction of lock piece the connecting piece for half arm rotates.
According to the truss arm section provided by the invention, two ends of the locking piece are respectively connected with the two half arms, included angles are formed between the extending direction of the connecting piece and the extending direction of the half arms and the extending direction of the locking piece, and at least one end of the locking piece is detachably connected with the half arms.
According to the arm section of the truss arm, the locking piece is of a rod-shaped structure, and two ends of the locking piece are hinged with the half arm through the first pin shaft;
the connecting piece is of a rod-shaped structure, and two ends of the connecting piece are hinged to the half arms through second hinge pins.
According to the arm joint of the truss arm, the opposite sides of the two half arms are provided with the first connecting seats, the first connecting seats are hinged with the locking pieces through the first pin shafts, the first ends of the first pin shafts are provided with the first limiting structures, the second ends of the first pin shafts are provided with the first clamping pieces, the first clamping pieces are detachably connected with the first pin shafts, and the first limiting structures and the first clamping pieces are arranged to limit the first pin shafts from falling off the first connecting seats and the locking pieces.
According to the arm joint of the truss arm, one side of each of the two half arms opposite to each other is provided with a second connecting seat, the second connecting seats are hinged to the connecting pieces through second hinge pins, a first end of each second hinge pin is provided with a second limiting structure, a second end of each second hinge pin is provided with a second clamping piece, the second clamping pieces are detachably connected with the second hinge pins, and the second limiting structures and the second clamping pieces are arranged to limit the second hinge pins from falling off from the second connecting seats and the connecting pieces.
According to the arm section of the truss arm, the number of the locking pieces is two, and the two locking pieces are distributed along the extending direction of the half arm.
According to the arm section of the truss arm provided by the invention, the connecting piece is pairwise vertical to the rotating axis of the half arm, the distribution direction of the two half arms and the extending direction of the half arms;
the connecting component is provided with two groups, and the two groups of connecting components are distributed along the rotating axis direction of the connecting piece relative to the half arm.
According to the invention, the arm section of the truss arm comprises the following half arms:
the two main chords are parallel to each other and are arranged at intervals, and the end parts of the main chords are provided with connecting parts used for being connected with the arm sections of the adjacent truss arms;
the two first web members are arranged at intervals and are parallel to the main chord member, and the connecting member and the locking member are connected with the first web members;
a plurality of second web members are respectively arranged between and adjacent to the main chord members, between and adjacent to the first web members between the main chord members and between the first web members.
The invention also provides a truss arm, which comprises the truss arm section.
The invention also provides a working machine which comprises the truss arm.
The truss arm section provided by the invention comprises two half arms and a connecting assembly arranged between the two half arms, wherein the connecting assembly comprises at least two connecting pieces and a locking piece, the connecting pieces are arranged between the two half arms and are in rotating connection with the half arms to form a parallelogram structure, and the distance between the two half arms can be adjusted by rotating the connecting pieces relative to the half arms, so that the overall transverse width of the truss arm section is adjusted. The locking piece can be switched between the first state and the second state, and when the truss arm is assembled, the locking piece is switched to the second state after the connecting piece rotates to the target position relative to the half arm, so that the connecting piece is limited to rotate relative to the half arm, and the stability of a connecting structure between the two half arms is ensured. When the truss arm section needs to be transported, the locking piece is switched to the first state, the connecting piece rotates relative to the half arms, and the truss arm section is folded, so that the distance between the two half arms is reduced, and further the overall transverse width of the truss arm section is reduced. So set up, according to the width size requirement of road transportation regulation to the transported substance, design the horizontal size of two half arms to combine the whole width size requirement of truss arm section, further design the size of connecting piece, make truss arm section can satisfy bearing capacity requirement, can satisfy road transportation requirement again, solved the limited problem of crawler crane's cantilever crane transportation that exists among the prior art.
Further, the truss arm provided by the present invention has the above-described various advantages because the truss arm section is provided.
Further, the present invention provides a working machine including the above-described truss arm, and therefore, also having various advantages as described above.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of a truss arm section provided by the invention in an assembled state;
FIG. 2 is an enlarged view of I of FIG. 1;
FIG. 3 is a front view of the truss arm section of FIG. 1;
FIG. 4 is a top view of the truss arm section of FIG. 1;
FIG. 5 is a side view of the truss arm section of FIG. 1;
FIG. 6 is a schematic structural view of arm sections of a truss arm provided by the invention in a transportation state;
FIG. 7 is an enlarged view of Y in FIG. 6;
FIG. 8 is a front view of the truss arm section of FIG. 6;
FIG. 9 is a top view of the truss arm section of FIG. 6;
FIG. 10 is a side view of the truss arm section of FIG. 6;
FIG. 11 is a schematic structural view of a half-arm provided by the present invention;
FIG. 12 is a schematic view of the connection between two adjacent truss arm sections provided by the present invention;
fig. 13 is an enlarged view of X in fig. 12.
Reference numerals:
1: a half arm; 2: a connecting member; 3: a locking member; 4: a first pin shaft; 5: a second pin shaft; 6: a first connecting seat; 7: a first clip member; 8: a second connecting seat; 9: a second clip member; 10: a main chord; 11: a connecting portion; 12: a first web member; 13: a second web member; 14: a third pin shaft; 15: and a third clamping piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The truss arm joint of the present invention is described below in conjunction with fig. 1-13.
As shown in fig. 1 to 13, the truss arm section provided by the embodiment of the invention includes a connecting assembly and two half arms 1, specifically, the extending directions of the two half arms 1 are parallel to each other, and the distribution direction of the two half arms 1 is perpendicular to the extending direction of the half arms 1. The two half-arms 1 have a spacing therebetween, and the connecting assembly is disposed between the two half-arms 1.
The connecting assembly comprises a locking piece 3 and at least two connecting pieces 2, two ends of each connecting piece 2 are respectively rotatably connected with the two half arms 1, and the rotating axis is perpendicular to the distribution direction of the two half arms 1. The two half arms 1 are identical in structural size, the connecting pieces 2 are identical in structural size, the two half arms 1 and the connecting pieces 2 form a parallelogram structure, the distance between the two half arms 1 can be adjusted by enabling the connecting pieces 2 to rotate relative to the half arms 1, and then the overall transverse width of the arm joint of the truss arm is adjusted.
The locking member 3 can be switched between a first state and a second state, when the locking member 3 is switched to the first state, the link 2 can rotate relative to the half arm 1, and when the locking member 3 is switched to the second state, the locking member 3 restricts the link 2 from rotating relative to the half arm 1.
When assembling the truss arm, the link 2 is rotated to a target position with respect to the half arm 1, and then the lock member 3 is switched to the second state to restrict the rotation of the link 2 with respect to the half arm 1, thereby ensuring the stability of the connection structure between the two half arms 1.
The target position is a position where the distance between the two half arms 1 can be maximized, for example, the extending direction of the link 2 is perpendicular to the extending direction of the half arms 1.
When the truss arm section needs to be transported, the locking piece 3 is switched to the first state, the connecting piece 2 rotates relative to the half arm 1, and the truss arm section is folded, so that the distance between the two half arms 1 is reduced, and the transverse width of the whole truss arm section is further reduced.
So set up, according to the width size requirement of road transportation regulation to the transported substance, design the horizontal size of two half arms 1 to combine the whole width size requirement of truss arm festival, further design the size of connecting piece 2, make truss arm festival can satisfy bearing capacity requirement, can satisfy the road transportation requirement again, solved the limited problem of crawler crane's cantilever crane transportation that exists among the prior art.
In the embodiment of the present invention, two ends of the locking member 3 are respectively connected to the two half arms 1, and the extending direction of the connecting member 2 and the extending direction of the half arms 1 both have included angles with the extending direction of the locking member 3, and the locking member 3, the half arms 1 and the connecting member 2 can jointly form a triangular structure or a trapezoidal structure to limit the connecting member 2 from rotating relative to the half arms 1, that is, the locking member 3 is in the second state, as shown in fig. 1 to 5.
At least one end of the lock member 3 is detachably connected to the half-arm 1, so that one end of the lock member 3 is disconnected from the half-arm 1, or both ends of the lock member 3 are disconnected from the half-arm 1, and the link member 2 is allowed to rotate relative to the half-arm 1, that is, the lock member 3 is in the first state, as shown in fig. 6 to 10 (the second clip member 9 is not shown in fig. 6 to 10).
Namely, through dismouting locking piece 3, can realize the switching of locking piece 3 between second state and first state, simple process, easy dismounting, and manufacturing cost is lower.
After the lock member 3 is removed, it can be placed in the state shown in fig. 6 by a machine such as a crane.
The number of the above-mentioned links 2 is determined according to the length of the half-arm 1 in the extending direction.
In the embodiment of the invention, the two locking pieces 3 are arranged, the two locking pieces 3 are distributed along the extending direction of the half arm 1, when the truss arm section or the truss arm section is assembled to work, the two locking pieces 3 are utilized to limit the relative position between the connecting piece 2 and the half arm 1, the connecting strength between the two half arms 1 is increased, and the bearing capacity and the stability of the truss arm section are improved. Specifically, two lock members 3 may be provided at both ends of the half arm 1, respectively.
In this embodiment, the locking member 3 is configured to be a rod-shaped structure, so that two ends of the locking member 3 are respectively hinged to the two half arms 1 through the first pin 4. Correspondingly, the connecting member 2 is also provided with a rod-shaped structure, so that two ends of the connecting member 2 are respectively hinged with the two half arms 1 through second pin shafts 5.
The locking piece 3 and the connecting piece 2 only bear acting force along the axis direction of the locking piece and the connecting piece, and the strength and the bearing capacity of the arm section of the truss arm are improved.
In the embodiment, a first connecting seat 6 is provided at the opposite side of the two half arms 1, a through hole is provided on the first connecting seat 6, and a corresponding through hole is provided at the end of the locking member 3, so that the first pin 4 can simultaneously pass through the through hole on the first connecting seat 6 and the through hole at the end of the locking member 3. First round pin axle 4's first end has first limit structure, and first round pin axle 4 runs through behind the tip of first connecting seat 6 and locking piece 3 can dismantle with first joint piece 7 and be connected.
Two connecting lug plates are respectively arranged at two ends of the locking piece 3, the two connecting lug plates are parallel to each other, and a space is reserved between the two connecting lug plates so as to allow the first connecting seat 6 to stretch into the connecting lug plates.
The first limiting structure may be, but is not limited to, a flange disposed at the first end of the first pin 4.
The first latch 7 may be, but not limited to, a latch spring.
In a specific embodiment, the first clip member 7 may be in the form of a pin, as shown in fig. 2, a through hole extending along a radial direction of the second end of the first pin 4 is disposed at the second end of the first pin 4, the first clip member 7 is bent into an annular structure, a hook portion is disposed at one end of the first clip member 7, and the other end of the first clip member passes through the through hole at the second end of the first pin 4 and then is engaged with the hook portion. Therefore, the first clamping piece 7 is convenient to disassemble and assemble.
Similarly, a second connecting seat 8 is arranged on one side of the two half arms 1 opposite to each other, a through hole is formed in the second connecting seat 8, and a corresponding through hole is formed in the end portion of the connecting piece 2, so that the second pin shaft 5 simultaneously penetrates through the through hole in the second connecting seat 8 and the through hole in the end portion of the connecting piece 2. The first end of second round pin axle 5 has second limit structure, and second round pin axle 5 runs through behind the tip of second connecting seat 8 and connecting piece 2 can dismantle with second joint spare 9 and be connected.
Two connecting lug plates are arranged at two ends of the connecting piece 2 respectively and are parallel to each other, and a space is reserved between the two connecting lug plates for the second connecting seat 8 to extend into.
The second limiting structure may be, but is not limited to, a flange provided at the first end of the second pin 5.
The second latch 9 may be, but not limited to, a latch spring. The second engaging member 9 can also be provided in the form of a pin, which is the same as the first engaging member 7 in structure and is not described herein again.
In the embodiment of the present invention, the connecting members 2 are perpendicular to each other with respect to the rotation axis of the half arm 1, the distribution direction of the two half arms 1, and the extending direction of the half arm 1. The two groups of connecting assemblies are arranged and distributed along the rotating axis direction of the connecting piece 2 relative to the half arm 1, and as shown in fig. 1, the structural strength and stability of the arm section of the truss arm can be further improved.
In the embodiment of the present invention, the half-boom 1 includes two main chords 10, two first web members 12 and a plurality of second web members 13, as shown in fig. 11, the two main chords 10 are parallel to each other and are arranged at intervals, the two first web members 12 are arranged at intervals and are parallel to the main chords 10, and a distance is provided between the first web members 12 and the main chords 10.
The second web members 13 are provided between the adjacent main chords 10, between the adjacent first web members 12, and between the adjacent main chords 10 and the first web members 12. Between the tip of second web member 13 and main chord 10, be fixed connection between the tip of second web member 13 and first web member 12, can fix through the welded mode specifically.
The first web members 12 of the two half-arms 1 are connected to the connecting element 2 and the locking element 3.
At the end of the main chord 10 there is provided a connection 11 for connection to the main chord 10 of an adjacent truss arm section. The structure of two adjacent truss arm sections connected together is shown in fig. 12.
In an embodiment, the connecting portion 11 includes a connecting ear plate disposed at an end of the main chord 10, and the ends of the main chord 10 of the arm sections of the adjacent truss arms can be hinged together by a third pin 14.
Specifically, one connecting ear plate is disposed at a first end of the main chord 10, and two connecting ear plates are disposed at a second end of the main chord 10 and spaced apart from each other. When two adjacent truss arm sections are connected, the connecting lug plate at the first end of the main chord 10 of one truss arm section extends into the space between two connecting lug plates at the second end of the main chord 10 of the other truss arm section, and the third pin 14 passes through the connecting lug plates of the main chords 10 of the two adjacent truss arm sections and is detachably connected with the third clamping member 15, as shown in fig. 13. The structure of the third pin 14 is the same as the structure of the first pin 4 and the second pin 5, and the structure of the third clamping member 15 is the same as the structure of the first clamping member 7 and the second clamping member 9, which will not be described herein again.
On the other hand, the embodiment of the invention also provides a truss arm, which comprises the truss arm section provided by any one of the embodiments. All the advantages of the above-described boom arm section are provided and will not be described in detail herein. The derivation process of the beneficial effect of the truss arm in the embodiment of the present invention is substantially similar to the derivation process of the beneficial effect of the truss arm section, and therefore, details are not repeated here.
In another aspect, an embodiment of the present invention further provides a working machine, including the truss arm in the above embodiment, which has all the advantages of the truss arm described above, and therefore, details are not described herein again. The process of deriving the advantageous effects of the working machine according to the embodiment of the present invention is substantially similar to the process of deriving the advantageous effects of the truss arm, and therefore, the description thereof is omitted here.
The working machine in the embodiment can be a large-tonnage and ultra-large-tonnage crawler crane and the like.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A truss arm knuckle comprising:
the extending directions of the two half arms are parallel to each other, and the distribution direction of the two half arms is vertical to the extending direction of the half arms;
coupling assembling sets up two between half arm, coupling assembling includes lock piece and two at least connecting pieces, the both ends of connecting piece respectively with two half arm is rotated and is connected, and axis of rotation is perpendicular with two half arm's distribution direction, the lock piece can switch between first state and second state under the first state, the connecting piece can for half arm rotates under the second state, the restriction of lock piece the connecting piece for half arm rotates.
2. The truss arm section according to claim 1, wherein two ends of the locking piece are respectively connected with the two half arms, the extending direction of the connecting piece and the extending direction of the half arms form included angles with the extending direction of the locking piece, and at least one end of the locking piece is detachably connected with the half arms.
3. The truss arm section as defined in claim 1 or 2 wherein the locking member is of a rod-shaped structure, and both ends of the locking member are hinged to the half arms through first pin shafts;
the connecting piece is of a rod-shaped structure, and two ends of the connecting piece are hinged to the half arms through second hinge pins.
4. The truss arm section as defined in claim 3, wherein a first connecting seat is arranged on one side of the two half arms opposite to each other, the first connecting seat is hinged to the locking member through the first pin, a first limiting structure is arranged at a first end of the first pin, a first clamping member is arranged at a second end of the first pin, the first clamping member is detachably connected to the first pin, and the first limiting structure and the first clamping member are arranged to limit the first pin from falling off the first connecting seat and the locking member.
5. The truss arm section as defined in claim 3 wherein a second connecting seat is provided on the opposite side of the two half arms, the second connecting seat is hinged to the connecting member via a second pin, a first end of the second pin has a second limit structure, a second end of the second pin is provided with a second clamping member, the second clamping member is detachably connected to the second pin, and the second limit structure and the second clamping member are configured to limit the second pin from falling off the second connecting seat and the connecting member.
6. Truss arm section as claimed in claim 1 wherein there are two locking members, two locking members being distributed along the extension of the half-arm.
7. The truss arm joint as defined in claim 1 wherein the connecting members are perpendicular two by two with respect to the axis of rotation of the half-arms, the direction of distribution of the two half-arms and the direction of extension of the half-arms;
the connecting assembly is provided with two groups, and the two groups of connecting assemblies are distributed along the rotating axis direction of the connecting piece relative to the half arm.
8. The truss arm leg section of claim 1 wherein the half-arm comprises:
the two main chords are parallel to each other and are arranged at intervals, and the end parts of the main chords are provided with connecting parts used for being connected with the arm sections of the adjacent truss arms;
the two first web members are arranged at intervals and are parallel to the main chord member, and the connecting member and the locking member are connected with the first web members;
a plurality of second web members are respectively arranged between and adjacent to the main chord members, between and adjacent to the first web members between the main chord members and between the first web members.
9. A truss arm including a truss arm section as defined in any one of claims 1 to 8.
10. A work machine comprising a truss arm as defined in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254302.6A CN114772478B (en) | 2022-03-15 | 2022-03-15 | Truss arm joint, truss arm and working machine |
| PCT/CN2022/101588 WO2023173621A1 (en) | 2022-03-15 | 2022-06-27 | Truss arm joint, truss arm and operation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210254302.6A CN114772478B (en) | 2022-03-15 | 2022-03-15 | Truss arm joint, truss arm and working machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114772478A true CN114772478A (en) | 2022-07-22 |
| CN114772478B CN114772478B (en) | 2023-06-20 |
Family
ID=82424648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210254302.6A Active CN114772478B (en) | 2022-03-15 | 2022-03-15 | Truss arm joint, truss arm and working machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114772478B (en) |
| WO (1) | WO2023173621A1 (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3246217A1 (en) * | 1982-12-14 | 1984-06-14 | Gottwald GmbH, 4000 Düsseldorf | Lattice jib for a jib crane |
| DE202004004942U1 (en) * | 2004-03-26 | 2004-06-03 | Stöcker, Joachim | Cross beam, especially for stage scaffolding, has collapsible structure comprising bars, straps and pivot joint arrangement |
| EP1935833A1 (en) * | 2006-12-20 | 2008-06-25 | Liebherr-Werk Ehingen GmbH | Framework unit for a large mobile crane and method for its erection |
| CN201850085U (en) * | 2010-03-30 | 2011-06-01 | 长沙中联重工科技发展股份有限公司 | Primary truss arm and crawler crane with the same |
| CN102216538A (en) * | 2008-10-22 | 2011-10-12 | 普罗德尔塔投资有限公司 | Lattice framework |
| CN102372233A (en) * | 2010-08-06 | 2012-03-14 | 利勃海尔爱茵根有限公司 | Lattice piece and crane |
| CN102530745A (en) * | 2012-03-20 | 2012-07-04 | 中联重科股份有限公司 | Arm joint for truss arm, truss arm, and crane with truss arm |
| CN105705453A (en) * | 2013-11-08 | 2016-06-22 | 伊特里克公司 | Crane boom segment for assembling a crane boom and method for assembling a crane boom |
| CN110304559A (en) * | 2019-06-24 | 2019-10-08 | 浙江三一装备有限公司 | Truss arm and crane |
| CN110697595A (en) * | 2019-11-19 | 2020-01-17 | 浙江三一装备有限公司 | Truss arm and crane |
| CN210214629U (en) * | 2019-06-24 | 2020-03-31 | 浙江三一装备有限公司 | Truss arm and crane |
| CN111348565A (en) * | 2020-04-22 | 2020-06-30 | 浙江三一装备有限公司 | Detachable crane boom and crane |
| CN113911938A (en) * | 2020-07-10 | 2022-01-11 | 利勃海尔爱茵根有限公司 | Detachable lattice component for crane boom |
-
2022
- 2022-03-15 CN CN202210254302.6A patent/CN114772478B/en active Active
- 2022-06-27 WO PCT/CN2022/101588 patent/WO2023173621A1/en unknown
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3246217A1 (en) * | 1982-12-14 | 1984-06-14 | Gottwald GmbH, 4000 Düsseldorf | Lattice jib for a jib crane |
| DE202004004942U1 (en) * | 2004-03-26 | 2004-06-03 | Stöcker, Joachim | Cross beam, especially for stage scaffolding, has collapsible structure comprising bars, straps and pivot joint arrangement |
| EP1935833A1 (en) * | 2006-12-20 | 2008-06-25 | Liebherr-Werk Ehingen GmbH | Framework unit for a large mobile crane and method for its erection |
| CN102216538A (en) * | 2008-10-22 | 2011-10-12 | 普罗德尔塔投资有限公司 | Lattice framework |
| CN201850085U (en) * | 2010-03-30 | 2011-06-01 | 长沙中联重工科技发展股份有限公司 | Primary truss arm and crawler crane with the same |
| CN102372233A (en) * | 2010-08-06 | 2012-03-14 | 利勃海尔爱茵根有限公司 | Lattice piece and crane |
| CN102530745A (en) * | 2012-03-20 | 2012-07-04 | 中联重科股份有限公司 | Arm joint for truss arm, truss arm, and crane with truss arm |
| CN105705453A (en) * | 2013-11-08 | 2016-06-22 | 伊特里克公司 | Crane boom segment for assembling a crane boom and method for assembling a crane boom |
| CN110304559A (en) * | 2019-06-24 | 2019-10-08 | 浙江三一装备有限公司 | Truss arm and crane |
| CN210214629U (en) * | 2019-06-24 | 2020-03-31 | 浙江三一装备有限公司 | Truss arm and crane |
| CN110697595A (en) * | 2019-11-19 | 2020-01-17 | 浙江三一装备有限公司 | Truss arm and crane |
| CN111348565A (en) * | 2020-04-22 | 2020-06-30 | 浙江三一装备有限公司 | Detachable crane boom and crane |
| CN113911938A (en) * | 2020-07-10 | 2022-01-11 | 利勃海尔爱茵根有限公司 | Detachable lattice component for crane boom |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023173621A1 (en) | 2023-09-21 |
| CN114772478B (en) | 2023-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104603378A (en) | Concrete distributor mast | |
| CN102556861A (en) | Counterweight pulling plate device for crane and crane | |
| WO2023185528A1 (en) | Hollowed-out boom segment, segmented type boom, and boom assembly | |
| CN114772478A (en) | Truss arm section, truss arm and operation machine | |
| CN110697595A (en) | Truss arm and crane | |
| CN102674167A (en) | Integrated arm frame and crane with arm frame | |
| CN111348565A (en) | Detachable crane boom and crane | |
| CN113562087A (en) | Crawler chassis device and crawler crane | |
| CN202643169U (en) | Multiple arm frame truss type strengthening structure | |
| JP2019034826A (en) | Coupling unit of lattice structure included in work machine | |
| WO2013139116A1 (en) | Arm joint for truss arm, truss arm, and crane with truss arm | |
| CN202449768U (en) | Counterweight strap device for crane and crane | |
| CN112623974A (en) | Assembled truss arm and operation machinery | |
| CN202897878U (en) | Assembled arm joint, arm frame, boom and tower crane | |
| CN102674168B (en) | Reinforced boom and crane with reinforced boom | |
| CN111302242A (en) | Transition joint assembly, crane boom and crane | |
| CN217102830U (en) | Truss arm and working machine | |
| CN103086270B (en) | Flexible connecting and fixing structure and equalizing beam | |
| CN111689408A (en) | Transition arm section, double-arm connecting assembly, double-arm support and light arm support | |
| CN214243562U (en) | Assembled truss arm and operation machinery | |
| CN215287775U (en) | Engineering machinery, transverse joint arm assembly and arm support thereof | |
| CN211998571U (en) | Transition joint assembly, crane boom and crane | |
| CN217076791U (en) | Assembled arm support, arm support device and operation machinery | |
| CN109761154A (en) | Crane | |
| CN114195026A (en) | Crane inhaul cable mechanism and crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |