CN112623974A - Assembled truss arm and operation machinery - Google Patents
Assembled truss arm and operation machinery Download PDFInfo
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- CN112623974A CN112623974A CN202110008123.XA CN202110008123A CN112623974A CN 112623974 A CN112623974 A CN 112623974A CN 202110008123 A CN202110008123 A CN 202110008123A CN 112623974 A CN112623974 A CN 112623974A
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- web member
- chord
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention provides an assembled truss arm and a working machine, which comprise a diagonal web member assembly and a plurality of chord member assemblies; the diagonal web member assembly includes: a plurality of diagonal web members which are sequentially installed at an angle; two ends of each diagonal web member are hinged with two adjacent chord member assemblies; an at least oblique web member of adjacent setting is for dismantling oblique web member, includes: first oblique web member connecting rod and the oblique web member connecting rod of second of mutual detachable connection. The assembled truss arm provided by the invention is provided with the diagonal web member assembly and the plurality of chord member assemblies, the adjacent chord member assemblies are hinged through the diagonal web members, and at least one diagonal web member arranged adjacently is arranged as a detachable diagonal web member. When the movable diagonal web member is in the unfolding state, the detachable diagonal web member is matched with other diagonal web members to be supported in the adjacent chord member assemblies, and the movable diagonal web member is assembled to be integrally matched with the operation machinery to work. When the boom is transported in a transition, the corresponding diagonal web members can be disassembled to enable the whole matched truss arm to be in a folding posture, so that the space of the profile of the boom is reduced, the cost is reduced, and the transportation requirement is met.
Description
Technical Field
The invention relates to the technical field of operation machinery, in particular to an assembled truss arm and operation machinery.
Background
A traditional crawler crane arm support is a welded lattice type truss arm and is formed by welding four main chords and web pipes in four planes. With the installation of equipment such as energy and chemical engineering and the like, the requirement on the hoisting capacity of a crane is higher and higher, the section of the arm support is larger and larger, but the road transportation regulations have clear requirements on the length, the width and the height of transported objects, so that the condition that the section of the arm support cannot be over-wide or over-high and cannot exceed the requirements of the regulations is limited. At present, the large-tonnage crawler crane adopts a double-boom type and an assembly type boom to solve the problems, and the two types of booms have the following defects:
1) for the double-arm type, the section of the arm support is large, the number of the arm supports is doubled, and the transportation cost is high.
2) For the assembled arm support, the assembly is needed to be carried out again each time of transition, so the assembly quantity is large and the efficiency is low.
Disclosure of Invention
The invention provides an assembled truss arm and an operating machine, which are used for solving the problem that the existing truss arm is difficult to transfer and assemble.
The present invention provides a fabricated truss arm comprising:
a diagonal web member assembly and a plurality of chord members;
the diagonal web member assembly comprises: a plurality of diagonal web members which are sequentially installed at an angle; two ends of each diagonal web member are hinged with two adjacent chord member assemblies; adjacent one that sets up oblique web member is for dismantling oblique web member, can dismantle oblique web member includes: a first diagonal web member connecting rod and a second diagonal web member connecting rod; the first end of the first diagonal web member connecting rod and the first end of the second diagonal web member connecting rod are detachably connected, and the second end of the first diagonal web member connecting rod and the second end of the second diagonal web member connecting rod correspond to the chord member assembly in a hinged mode.
According to the present invention, there is provided a fabricated truss arm further comprising: a straight web bar assembly;
the straight web bar assembly comprises: a first straight web member and a second straight web member;
the first end of first straight web member with one of them the chord member subassembly is articulated, the second end of first straight web member with the first end of second straight web member can be dismantled and be connected, the second end of second straight web member with adjacent another the chord member subassembly is articulated.
According to the fabricated truss arm provided by the invention, the number of the straight web components is multiple, the first end of the first straight web member in each straight web component is hinged with the end part of one chord component, and the second end of the second straight web member in each straight web component is hinged with the end part of the other adjacent chord component.
According to the fabricated truss arm provided by the invention, the first straight web member and the second straight web member are respectively provided with a plurality of pin shaft holes which are correspondingly arranged; and the pin shaft is inserted in the pin shaft holes corresponding to the first straight web member and the second straight web member.
According to the fabricated truss arm provided by the invention, the lengths of the first straight web member and the second straight web member are different, and the first straight web member and the second straight web member in two straight web members connected between the same adjacent chord members are installed in opposite directions.
According to the fabricated truss arm provided by the invention, the adjacent diagonal web members are divided into a first diagonal web member and a second diagonal web member; wherein, first oblique web member is for dismantling oblique web member, the oblique web member of second is for dismantling oblique web member.
According to the present invention there is provided a fabricated truss arm, the chord member assembly comprising: the chord member and a plurality of connecting pieces are sequentially arranged on the chord member at intervals; the adjacent oblique web members are hinged with the same connecting piece.
According to the fabricated truss arm provided by the invention, the number of the chord components is four, and the four chord components are respectively a first chord component, a second chord component, a third chord component and a fourth chord component which are arranged in parallel in pairs;
the first side of the first chord component is hinged to the first side of the second chord component through the corresponding diagonal web members, the second side of the second chord component is hinged to the first side of the third chord component through the corresponding diagonal web members, the second side of the third chord component is hinged to the first side of the fourth chord component through the corresponding diagonal web members, and the second side of the fourth chord component is hinged to the second side of the first chord component through the corresponding diagonal web members.
According to the fabricated truss arm provided by the invention, the number of the chord components is three, and the three chord components are respectively a first chord component, a second chord component and a third chord component which are sequentially and parallelly installed;
the first chord component is hinged with the second chord component through the corresponding diagonal web members, and the second chord component is hinged with the third chord component through the corresponding diagonal web members.
The invention also provides a work machine comprising a fabricated truss arm; the fabricated truss arm includes: a diagonal web member assembly and a plurality of chord members;
the diagonal web member assembly comprises: a plurality of diagonal web members which are sequentially installed at an angle; two ends of each diagonal web member are hinged with two adjacent chord member assemblies; at least one of adjacent setting oblique web member is for dismantling oblique web member, includes: first oblique web member connecting rod and the oblique web member connecting rod of second of mutual detachable connection.
The assembled truss arm and the operation machine provided by the invention are provided with the diagonal web member assembly and the plurality of chord member assemblies, the adjacent chord member assemblies are hinged through the diagonal web members, and at least one diagonal web member arranged adjacently is set as a detachable diagonal web member. When the movable diagonal web member is in the unfolding state, the detachable diagonal web member is matched with other diagonal web members to be supported in the adjacent chord member assemblies, and the movable diagonal web member is assembled to be integrally matched with the operation machinery to work. When the boom is transported in a transition, the corresponding diagonal web members can be disassembled to enable the whole matched truss arm to be in a folding posture, so that the space of the profile of the boom is reduced, the cost is reduced, and the transportation requirement is met.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a fabricated truss arm in an expanded configuration provided by an embodiment of the present invention;
FIG. 2 is a schematic structural view of a fabricated truss arm in a collapsed condition provided by an embodiment of the present invention;
figure 3 is an exploded view of a fabricated truss arm provided in accordance with one embodiment of the present invention;
FIG. 4 is a flow chart of the assembled truss arm state switching provided by one embodiment of the present invention;
FIG. 5 is a schematic structural view of a fabricated truss arm in an expanded configuration provided by another embodiment of the present invention;
FIG. 6 is a schematic structural view of a fabricated truss arm in a collapsed condition provided in accordance with another embodiment of the present invention;
reference numerals:
1: a diagonal web member; 11: a first diagonal web member; 111: a first diagonal web member connecting rod;
112: a second diagonal web member connecting rod; 12: a second diagonal web member; 2: a chord member;
21: a chord member; 22: a connecting member; 23: a first chord member;
24: a second chord member; 25: a third chord assembly; 26: a fourth chord assembly;
3: a straight web bar assembly; 31: a first right web member; 32: a second web member.
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 present invention will be described with reference to fig. 1 to 3, which provide a fabricated truss arm comprising: a diagonal web member assembly and a plurality of chord members 2. The diagonal web member assembly includes: a plurality of diagonal web members 1 which are sequentially installed at an angle. The two ends of each diagonal web member 1 are hinged with two adjacent chord members 2. An at least oblique web member 1 of adjacent setting is for dismantling oblique web member, can dismantle oblique web member and include: a first diagonal web link 111 and a second diagonal web link 112. The first end of first diagonal web member connecting rod 111 and the first end of second diagonal web member connecting rod 112 are connected in a detachable mode, and the second end of first diagonal web member connecting rod 111 and the second end of second diagonal web member connecting rod 112 are hinged to the corresponding chord member 2.
In this embodiment, the adjacently disposed diagonal web members 1 are divided into a first diagonal web member 11 and a second diagonal web member 12. Wherein, first oblique web member 11 is for dismantling oblique web member, and second oblique web member 12 is undetachable oblique web member.
When the fabricated truss arm is in a deployed state, as shown in fig. 1, the first diagonal web member 11 is integrally assembled with the second diagonal web member 12 and is simultaneously installed between the two chord members 2, and at this time, the first diagonal web member 11 and the second diagonal web member 12 support the two chord members 2, so that the truss arm can normally operate. When it is necessary to transfer the fabricated truss arm, as shown in fig. 2, the first diagonal web member 11 can be detached and separated into a first diagonal web member link 111 and a second diagonal web member link 112. At this time, only the second diagonal web member 12 hinged to the two chord members 2 is arranged in the two chord members 2, and the whole matched truss arm can be folded by properly pressing the chord members 2.
It should be noted that, according to actual conditions, can dismantle oblique web member and still continue the segmentation on the basis of two connecting rods, can dismantle oblique web member and can include a plurality of oblique web member connecting rods of mutual detachable connection, utilize the assembly form structure of many oblique web member connecting rods to satisfy different transportation requirements.
The assembled truss arm provided by the invention is provided with the diagonal web member assembly and the plurality of chord member assemblies, the adjacent chord member assemblies are hinged through the diagonal web members, and at least one diagonal web member arranged adjacently is arranged as a detachable diagonal web member. When the movable diagonal web member is in the unfolding state, the detachable diagonal web member is matched with other diagonal web members to be supported in the adjacent chord member assemblies, and the movable diagonal web member is assembled to be integrally matched with the operation machinery to work. When the boom is transported in a transition, the corresponding diagonal web members can be disassembled to enable the whole matched truss arm to be in a folding posture, so that the space of the profile of the boom is reduced, the cost is reduced, and the transportation requirement is met.
Based on the above embodiments, in a preferred embodiment, as shown in fig. 1 to 3, the fabricated truss arm further includes: a straight web bar assembly 3. The straight web members 3 serve to cooperate with the diagonal web members and at the same time serve to support the adjacent chord members 2.
Wherein, straight web bar assembly 3 includes: a first straight web member 31 and a second straight web member 32. The first end of the first straight web member 31 is hinged with one chord member 2, the second end of the first straight web member 31 is detachably connected with the first end of the second straight web member 32, and the second end of the second straight web member 32 is hinged with the other adjacent chord member 2.
When the fabricated truss arm is in an unfolded state, as shown in fig. 1, the straight web member 3 and the first diagonal web member 11 are assembled integrally with the second diagonal web member 12 and are installed between the two chord members 2, and at this time, the straight web member 3, the first diagonal web member 11 and the second diagonal web member 12 support the two chord members 2, and the truss arm can normally operate.
If the assembled truss arm needs to be transferred, as shown in fig. 2, the straight web member 3 and the first diagonal web member 11 can be disassembled, the straight web member 3 is disassembled into the first straight web member 31 and the second straight web member 32, and the first diagonal web member 11 is disassembled into the first diagonal web member connecting rod 111 and the second diagonal web member connecting rod 112. At this time, only the second diagonal web member 12 and the first straight web member 31 or the second straight web member 32 hinged thereto are provided in the two chord members 2, and the entire lattice arm can be folded by appropriately pressing the chord members 2, and finally the first straight web member 31 or the second straight web member 32 can support the two chord members 2 as required.
The number of the straight web components 3 is multiple, the first end of the first straight web member 31 in each straight web component 3 is hinged with the end of one chord component 2, and the second end of the second straight web member 32 in each straight web component 3 is hinged with the end of the other adjacent chord component 2.
In general, two straight web members 3 may be provided on two adjacent chord members 2. Straight web member 3 sets up the tip at chord member subassembly 2, through setting up the intensity that straight web member 3 not only can strengthen the truss arm, owing to be equipped with two sections straight web members in the straight web member 3 moreover for when being folding gesture, one of them section in the straight web member 3 can be used for supporting two chord member subassemblies 2, and the control is the distance between two chord member subassemblies 2 when folding gesture.
In order to precisely control the folding posture and the distance between the two chord members 2, the lengths of the first and second straight web members 31 and 32 may be adjusted so that the lengths of the first and second straight web members 31 and 32 are different from each other, and the first and second straight web members 31 and 32 of the two straight web members 3 connected between the adjacent chord members 2 are installed in opposite directions. Therefore, when the truss arm is folded, only the shorter straight web member of the first straight web member 31 and the second straight web member 32 can be used for supporting the chord member assembly 2, and the contour space of the arm support can be further reduced.
The first straight web member 31 and the second straight web member 32 in the straight web member assembly 3 can be hinged by pin shafts, and a plurality of pin shaft holes which are correspondingly arranged are arranged on the first straight web member 31 and the second straight web member 32. The pin shaft is inserted into the pin shaft holes corresponding to the first straight web member 31 and the second straight web member 32, and the first straight web member 31 and the second straight web member 32 are detachably connected by detaching the pin shaft.
In the present embodiment, the chord member assembly 2 includes: a chord 21 and a plurality of connecting pieces 22 which are sequentially arranged on the chord at intervals. The oblique web members 1 which are adjacently arranged are hinged to the same connecting piece 22, and the connecting piece 22 can adopt a bearing seat, so that two ends of each oblique web member 1 are hinged to the two adjacent chords 21 through the bearing seat and a pin shaft. If the boom arm is also provided with a straight web member, the adjacently arranged diagonal web members 1 and straight web members may also be hinged by the same connecting member 22.
In the present embodiment, as shown in fig. 4, the number of the chord members 2 is four, and the four chord members are a first chord member 23, a second chord member 24, a third chord member 25, and a fourth chord member 26 which are installed in parallel in pairs. A first side of the first chord assembly 23 is hinged to a first side of the second chord assembly 24 by the diagonal web members 1, a second side of the second chord assembly 24 is hinged to a first side of the third chord assembly 25 by the corresponding diagonal web members 1, a second side of the third chord assembly 25 is hinged to a first side of the fourth chord assembly 26 by the corresponding diagonal web members 1, and a second side of the fourth chord assembly 26 is hinged to a second side of the first chord assembly 23 by the corresponding diagonal web members 1.
When the fabricated truss arm is in an unfolded state (assuming that no straight web members 3 are installed between the chord members 2), as shown in a in fig. 4, the corresponding diagonal web members 1 are supported in the adjacent chord members 2, and at this time, the straight web members 3 and the diagonal web members 1 support two chord members 2, and the truss arm can normally work.
If it is necessary to transfer the fabricated truss arm, as shown in fig. 4B, the diagonal web member 1 corresponding to the second side of the fourth chord member assembly 26 and the diagonal web member 1 corresponding to the second side of the second chord member assembly 24 can be disassembled, and the upper and lower sides of the truss arm are in a folded posture. If the boom profile space needs to be reduced, as shown in fig. 4C, the web member 1 corresponding to the first side of the first chord member assembly 23 and the web member 1 corresponding to the second side of the third chord member assembly 25 can be disassembled, and at this time, the boom is folded up, down, left, and right. If it is necessary to fold the truss arm left and right first, as shown in fig. 4D, the diagonal web member 1 corresponding to the first side of the first chord member 23 and the diagonal web member 1 corresponding to the second side of the third chord member 25 can be disassembled, and the truss arm left and right sides are in a folded posture. If the boom profile space needs to be reduced continuously, as shown in fig. 4C, the diagonal web member 1 corresponding to the second side of the fourth chord member assembly 26 and the diagonal web member 1 corresponding to the second side of the second chord member assembly 24 are disassembled, and at this time, the truss arms are in a folded posture in the vertical and horizontal directions. In the same way, the truss arm in the folding posture can be adjusted to the unfolding state according to the adjustment of the diagonal web members 1.
In the present embodiment, as shown in fig. 5 and 6, the number of the chord members 2 is three, and the three chord members are respectively a first chord member 23, a second chord member 24 and a third chord member 25 which are sequentially installed in parallel. The first chord member 23 is hinged to the second chord member 24 through the corresponding diagonal web member 1, and the second chord member 24 is hinged to the third chord member 25 through the corresponding diagonal web member 1. Meanwhile, a straight web component 3 is connected between the first chord component 23 and the second chord component 24, and a straight web component 3 is connected between the second chord component 24 and the third chord component 25.
In the unfolded state of the fabricated truss arm, as shown in fig. 5, the straight web members 3 and the first diagonal web members 11 between the first chord member 23 and the second chord member 24 are integrally assembled with the second diagonal web members 12 to support the first chord member 23 and the second chord member 24. The straight web components 3 and the first diagonal web members 11 between the second chord components 24 and the third chord components 25 are assembled into a whole by matching with the second diagonal web members 12, the second chord components 24 and the third chord components 25 are supported, and the whole truss arm can work normally.
If the assembled truss arm needs to be transferred, as shown in fig. 6, the straight web member 3 and the first diagonal web member 11 between the first chord member 23 and the second chord member 24 may be disassembled, the straight web member 3 may be disassembled into the first straight web member 31 and the second straight web member 32, and the first diagonal web member 11 may be disassembled into the first diagonal web member connecting rod 111 and the second diagonal web member connecting rod 112. At this time, only the second diagonal web member 12 and the first straight web member 31 or the second straight web member 32 hinged thereto are provided in the first chord member assembly 23 and the second chord member assembly 24, and the first chord member assembly 23 and the second chord member assembly 24 can be brought into the folded posture by appropriately pressing the first chord member 23 and the second chord member 24. At this time, the straight web member 3 and the first diagonal web member 11 between the second chord member 24 and the third chord member 25 are detached, the straight web member 3 is detached into the first straight web member 31 and the second straight web member 32, and the first diagonal web member 11 is detached into the first diagonal web member link 111 and the second diagonal web member link 112. At this time, only the second diagonal web member 12 and the first straight web member 31 or the second straight web member 32 hinged to the second chord member assembly 24 and the third chord member 25 are provided in the second chord member assembly 24 and the third chord member 25, and the second chord member assembly 24 and the third chord member 25 can be folded by appropriately pressing the second chord member assembly 24 and the third chord member 25, so that the entire truss arm can be folded.
It should be noted that, on this basis, the number of the chord members 2 can be continuously increased or decreased, and only the diagonal web member assembly and the straight web member 3 are directly arranged on the corresponding chord members 2, and the transfer assembly of different truss arms can be effectively realized by using the diagonal web member assembly and the straight web member 3 hinged thereto.
The present invention also provides a working machine, which may be an excavator, a pump truck, a crane, or the like, comprising: a fabricated truss arm. The fabricated truss arm includes: a diagonal web member assembly and a plurality of chord members 2. The diagonal web member assembly includes: a plurality of diagonal web members 1 which are sequentially installed at an angle. The two ends of each diagonal web member 1 are hinged with two adjacent chord members 2. An at least oblique web member 1 of adjacent setting is for dismantling oblique web member, can dismantle oblique web member and include: a first diagonal web member link 111 and a second diagonal web member link 112 detachably connected to each other. The specific structure of the fabricated truss arm can refer to the above-mentioned embodiments related to fig. 1 to 6, and is not described herein again.
When the working machine is in the unfolded state, as shown in fig. 1, the first diagonal web member 11 is integrally assembled with the second diagonal web member 12 while being installed between the two chord members 2, and at this time, the first diagonal web member 11 and the second diagonal web member 12 support the two chord members 2, and the truss arm can normally operate. When the fabricated truss arm of the working machine needs to be transferred, as shown in fig. 2, the first diagonal web member 11 can be detached and separated into a first diagonal web member link 111 and a second diagonal web member link 112. At this time, only the second diagonal web member 12 hinged to the two chord members 2 is arranged in the two chord members 2, and the whole matched truss arm can be folded by properly pressing the chord members 2.
The invention provides a working machine which is provided with an assembled truss arm, wherein adjacent chord member assemblies are hinged through diagonal web members, and at least one diagonal web member arranged adjacently is set as a detachable diagonal web member. When the movable diagonal web member is in the unfolding state, the detachable diagonal web member is matched with other diagonal web members to be supported in the adjacent chord member assemblies, and the movable diagonal web member is assembled to be integrally matched with the operation machinery to work. When the cantilever crane is transported in a transition place, the corresponding diagonal web members can be disassembled to enable the whole matched truss arm to be in a folding posture, so that the space of the outline of the cantilever crane is reduced, the cost is reduced, the outline size of the cantilever crane with the super-large section can be reduced, and the requirements of transportation regulations can be met.
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 fabricated truss arm, comprising:
a diagonal web member assembly and a plurality of chord members;
the diagonal web member assembly comprises: a plurality of diagonal web members which are sequentially installed at an angle; two ends of each diagonal web member are hinged with two adjacent chord member assemblies; adjacent one that sets up oblique web member is for dismantling oblique web member, can dismantle oblique web member includes: a first diagonal web member connecting rod and a second diagonal web member connecting rod; the first end of the first diagonal web member connecting rod and the first end of the second diagonal web member connecting rod are detachably connected, and the second end of the first diagonal web member connecting rod and the second end of the second diagonal web member connecting rod correspond to the chord member assembly in a hinged mode.
2. The fabricated truss arm of claim 1, further comprising: a straight web bar assembly;
the straight web bar assembly comprises: a first straight web member and a second straight web member;
the first end of first straight web member with one of them the chord member subassembly is articulated, the second end of first straight web member with the first end of second straight web member can be dismantled and be connected, the second end of second straight web member with adjacent another the chord member subassembly is articulated.
3. The fabricated truss arm of claim 2 wherein the number of straight web assemblies is plural, the first end of the first straight web member of each straight web assembly being hingedly connected to the end of one of the chord assemblies, and the second end of the second straight web member of each straight web assembly being hingedly connected to the end of the adjacent other chord assembly.
4. The fabricated truss arm of claim 2, wherein the first straight web member and the second straight web member are provided with a plurality of pin shaft holes correspondingly; and the pin shaft is inserted in the pin shaft holes corresponding to the first straight web member and the second straight web member.
5. The fabricated truss arm of claim 3 wherein said first and second straight web members have different lengths, and wherein said first and second straight web members of two of said straight web members connected between adjacent ones of said chord members are mounted in opposite directions.
6. The fabricated truss arm of claim 1 wherein the adjacently disposed diagonal web members are divided into a first diagonal web member and a second diagonal web member; wherein, first oblique web member is for dismantling oblique web member, the oblique web member of second is for dismantling oblique web member.
7. The fabricated truss arm of any of claims 1-6 wherein the chord assembly comprises: the chord member and a plurality of connecting pieces are sequentially arranged on the chord member at intervals; the adjacent oblique web members are hinged with the same connecting piece.
8. The fabricated truss arm of any of claims 1-6, wherein the number of chord components is four, respectively a first chord component, a second chord component, a third chord component and a fourth chord component mounted in parallel two by two;
the first side of the first chord component is hinged to the first side of the second chord component through the corresponding diagonal web members, the second side of the second chord component is hinged to the first side of the third chord component through the corresponding diagonal web members, the second side of the third chord component is hinged to the first side of the fourth chord component through the corresponding diagonal web members, and the second side of the fourth chord component is hinged to the second side of the first chord component through the corresponding diagonal web members.
9. The fabricated truss arm of any of claims 1-6, wherein the number of chord components is three, respectively a first chord component, a second chord component and a third chord component mounted in parallel in that order;
the first chord component is hinged with the second chord component through the corresponding diagonal web members, and the second chord component is hinged with the third chord component through the corresponding diagonal web members.
10. A work machine, characterized in that the work machine comprises a fabricated truss arm as claimed in any one of claims 1-9.
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| CN202110008123.XA CN112623974A (en) | 2021-01-05 | 2021-01-05 | Assembled truss arm and operation machinery |
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| CN202110008123.XA CN112623974A (en) | 2021-01-05 | 2021-01-05 | Assembled truss arm and operation machinery |
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| CN112623974A true CN112623974A (en) | 2021-04-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550427A (en) * | 2021-08-16 | 2021-10-26 | 上海城建建设实业集团新型建筑材料丽水有限公司 | Web member assembly type truss of outer wrapping type lower chord member propeller strut |
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2021
- 2021-01-05 CN CN202110008123.XA patent/CN112623974A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550427A (en) * | 2021-08-16 | 2021-10-26 | 上海城建建设实业集团新型建筑材料丽水有限公司 | Web member assembly type truss of outer wrapping type lower chord member propeller strut |
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