CN207418163U - Truss arm, crane strengthen jib structure and crawler crane - Google Patents
Truss arm, crane strengthen jib structure and crawler crane Download PDFInfo
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- CN207418163U CN207418163U CN201721559585.6U CN201721559585U CN207418163U CN 207418163 U CN207418163 U CN 207418163U CN 201721559585 U CN201721559585 U CN 201721559585U CN 207418163 U CN207418163 U CN 207418163U
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Abstract
The utility model discloses a kind of truss arm, cranes to strengthen jib structure and crawler crane, is related to Crane Jib Structure technical field.The truss arm is used to be fixed at the arm support main body of crawler crane, and truss arm is frame structure and the fixed bit including that can be fixedly connected with arm support main body.Fixed bit includes the first main frame body, the first reinforcer being fixedly installed between the first main frame body and the first fixing piece that can be fixedly installed on arm support main body, first main frame body includes two the first principal arms, the quantity of first reinforcer is multiple and be fixedly installed on two the first principal arms successively, first fixing piece is fixedly connected with the first main frame body, and the first fixing piece is provided with multiple mounting portions.The truss arm design it is reasonable, simple in structure, in, the actual condition of large-tonnage crawler crane be combined use, so as to increase arm support rigidity and bending resistance, improve the load-carrying ability of crane.
Description
Technical field
The utility model is related to Crane Jib Structure technical fields, add in particular to a kind of truss arm, crane
Strong jib structure and crawler crane.
Background technology
The arm support of crawler crane mostly using single armed form, uses both arms frame system on a small number of super-tonnage crawler cranes
System uses two sets of parallel or chevron shaped arm supports.
However, this structure does not have dismoutability, it is not suitable for middle large-tonnage crawler crane.For large-tonnage in improving
The load-carrying ability of crawler crane, the lateral stability of boom system, the convenience of arm support dismounting and the weight of full single-piece transport
Amount and dimensional standard need to consider to carry out middle large-tonnage crawler crane boom into appropriate fractionation and combination.
It is the technology of this field in conclusion how to provide a kind of truss structure of middle large-tonnage crawler crane boom
The technical issues of personnel are urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide a kind of truss arms, are applied in combination according to actual condition, improve boom system
Rigidity, lateral stability and bending resistance, effectively improve the stability and stressing conditions of entire arm support, so as to improve lifting
The load-carrying ability of machine.
The purpose of this utility model, which also resides in, provides a kind of crane reinforcement jib structure, passes through the group for adjusting and increasing joint arm
Quantity is closed, it can be achieved that the selection of a variety of arm support operating modes, coverage are larger.
The purpose of this utility model, which also resides in, provides a kind of crawler crane, and there is above-mentioned crane to strengthen jib structure
The advantages of.
What the embodiment of the utility model was realized in：
Based on above-mentioned purpose, the embodiment of the utility model provides a kind of truss arm, is risen for being fixed at crawler belt
The arm support main body of heavy-duty machine, the truss arm are frame structure and the fixed bit including that can be fixedly connected with arm support main body；
The fixed bit include the first main frame body, the first reinforcer for being fixedly installed between first main frame body and
The first fixing piece of arm support main body can be fixedly installed on, first main frame body includes two the first principal arms, and described first adds
The quantity of strong part is multiple and be fixedly installed on two first principal arms successively, first fixing piece and first body frame
Body is fixedly connected, and first fixing piece is provided with multiple mounting portions.
In addition, the truss arm that embodiment according to the present utility model provides, can also have following additional technical characteristic：
In the alternative embodiment of the utility model, the truss arm is transition joint arm, and the transition joint arm includes connection
Position and reinforcement position, the connection position are located at the one side of the fixed bit length direction, and the reinforcement position is located at the fixed bit length
The opposite side in direction is spent, the connection position is fixed with the reinforcement position by linking arm；
The connection position is provided with multiple connecting portions, and the angle strengthened between position and the fixed bit is acute angle.
In the alternative embodiment of the utility model, the reinforcement position includes the second main frame body and the second reinforcer, described
Second main frame body includes two the second principal arms, and one end of second principal arm is fixedly connected with first principal arm, and described second
The quantity of reinforcer is multiple and is set in turn between two second principal arms；
The connection position includes the 3rd main frame body and the 3rd reinforcer, and the 3rd main frame body includes two the 3rd principal arms,
3rd principal arm is fixedly connected with one end away from first principal arm of second principal arm, the number of the 3rd reinforcer
It measures to be multiple and be set in turn between first principal arm and/or the 3rd principal arm.
In the alternative embodiment of the utility model, for the truss arm to increase joint arm, the increasing joint arm further includes connection position,
The quantity of the connection position is for two and respectively positioned at the both sides of the fixed bit along its length；
Each connection position is provided with multiple connecting portions, and the connecting portion can be with the connection of the adjacent connection position
Portion is fixedly connected.
In the alternative embodiment of the utility model, the connection position is the first connection position and the second connection position, described the
One connection position is arranged in parallel with second connection position；
First fixing piece includes wearing fixing piece, and the fixing piece that wears is passed through from first reinforcer, described
Installation position wears fixing piece in described；
It is fixed between two connection positions by the 4th principal arm and the 4th reinforcer.
The embodiment of the utility model additionally provides a kind of crane and strengthens jib structure, including arm support main body and truss
Arm, the truss arm are fixedly installed along the length direction of the arm support main body.
In the alternative embodiment of the utility model, the truss arm includes transition joint arm group and increases joint arm group；
The increasing joint arm group includes at least one increasing joint arm, at least one length for increasing joint arm along the arm support main body
Direction is sequentially connected fixed setting；
The transition joint arm group includes First Transition joint arm and the second transition joint arm, and the First Transition joint arm is located at described
Increase one end of joint arm group length direction, second transition joint arm is located at the other end of the increasing joint arm group length direction.
In the alternative embodiment of the utility model, the arm support main body includes the first side and second in the width direction
Side, the transition joint arm group and the quantity for increasing joint arm group are two, one of them transition joint arm group and the increasing
Joint arm group is located at the first side of the arm support main body, another described transition joint arm group and the increasing joint arm group are located at the arm support
The second side of main body.
In the alternative embodiment of the utility model, the truss arm includes two transition joint arm groups, two transition
Joint arm group is symmetrically disposed on the both sides of the arm support main body；
The transition joint arm group includes First Transition joint arm and the second transition joint arm, the First Transition joint arm and described the
Two transition joint arms fix company back to setting, the connecting portion of the First Transition joint arm and the connecting portion of second transition joint arm
It connects.
The embodiment of the utility model additionally provides a kind of crawler crane, including gantry body and crane reinforcement arm
Frame structure；
The gantry body is strengthened jib structure with the crane and is fixedly connected.
The advantageous effect of the utility model embodiment is：It is simple in structure, design is reasonable, large-tonnage crawler crane in raising
Load-carrying ability, the lateral stability of boom system, the weight and size mark of the convenience of arm support dismounting and the transport of full single-piece
Standard, it is convenient for disassembly and assembly, assembling adjusting is carried out according to different operating modes, meets the transport requirement of weight and size.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the schematic diagram for the truss arm that the utility model embodiment 1 provides；
Fig. 2 is the schematic diagram of transition joint arm in Fig. 1；
Fig. 3 is the schematic diagram for increasing joint arm in Fig. 1；
Fig. 4 is the schematic diagram that the crane that the utility model embodiment 2 provides strengthens jib structure；
Fig. 5 is the schematic diagram that the crane that the utility model embodiment 3 provides strengthens jib structure.
Icon：100- truss arms；200- cranes strengthen jib structure；10- fixed bits；The first main frame bodies of 102-；105-
Mounting portion；The second main frame bodies of 107-；13- connection positions；14- transition joint arms；142- First Transition joint arms；The second transition segments of 146-
Arm；15- increases joint arm；The first connection positions of 153-；The second connection positions of 155-；20- arm support main bodys.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to which explanation, term " first ", " second ", " the 3rd " etc. are only used for area in the description of the utility model
Divide description, and it is not intended that instruction or hint relative importance.
In the description of the utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
The embodiment of the utility model is described in detail below in conjunction with attached drawing, but the utility model can be by right
It is required that the multitude of different ways for limiting and covering is implemented.
Wherein Fig. 1-Fig. 3 corresponds to the embodiment 1 of the utility model, and Fig. 4 corresponds to the embodiment 2 of the utility model, Fig. 5 pairs
The embodiment 3 of the utility model is answered, the technical solution of the utility model embodiment is described in detail below in conjunction with attached drawing.
Embodiment 1
As shown in Figure 1-Figure 3, the truss arm 100 that the utility model embodiment 1 provides, for being fixed at crawler belt lifting
In the arm support main body 20 of machine, for improving the rigidity of arm support main body 20, lateral stability and bending resistance, work in crane
The stability and stressing conditions of entire arm support main body 20 are effectively improved in the process, so as to improve the load-carrying ability of crane.
The concrete structure to all parts of the truss arm 100 and mutual correspondence carry out specifically below
It is bright.
The truss arm 100 is frame structure and can be connected with arm support main body 20, specifically, the truss arm 100 wraps
It includes fixed bit 10, strengthen position and connection position 13, wherein, fixed bit 10 refers to that truss arm 100 is fixedly connected with arm support main body 20
Outer surface, it is the outer surface that possesses of intensity for strengthening the truss arm 100 to strengthen position, and connection position 13 is by multiple truss arms
100 are sequentially connected as the outer surface of an entirety.
In the utility model embodiment 1, strengthen the one side that position is located at 10 length direction of fixed bit, connection position 13 is located at solid
The opposite side of 10 length directions is positioned, wherein, fixed bit 10 includes the first main frame body 102, the first reinforcer and the first fixation
Part, the quantity of the first main frame body 102 is two and is arranged side by side, and the quantity of the first reinforcer is multiple and be fixedly installed on two
Between a first main frame body 102, the first fixing piece is fixedly connected with the first main frame body 102 and for being fixed at arm support main body
20。
Optionally, the first fixing piece is provided with multiple mounting portions 105, which is used for and arm support main body 20 passes through
Connector is fixedly connected.
It is the truss arm 100 of two kinds of different structures below, carrying out any combination according to the actual demand of arm support main body 20 makes
With the installation site of two kinds of truss arms 100 in arm support main body 20 differs, specific as follows：
The first, refer to shown in Fig. 2, define the truss arm 100 as transition joint arm 14, the connection in the transition joint arm 14
Position 13 is located at the one side of 10 length direction of fixed bit, strengthens the opposite side that position is located at 10 length direction of fixed bit, and connection position 13
It is fixed between reinforcement position by multiple linking arms.
Optionally, connection position 13 is provided with multiple connecting portions, and each connecting portion is provided with can be solid with other truss arms 100
Surely the connector connected when multiple truss arms 100 splice, is connected by the connecting portion in connection position 13, and multiple truss arms
100 connecting portion position matches, and connector here can be bolt, positioning pin etc., as long as can be by two neighboring truss
Arm 100 is fixedly connected as an entirety.
Optionally, strengthen position and be located at the opposite one side of connection position 13, the angle between the reinforcement position and fixed bit 10 is sharp
Angle.Specifically, strengthening position includes the second main frame body 107 and the second reinforcer, wherein, the second main frame body 107 includes two second
Principal arm, two second principal arms are arranged in parallel, and one end of its one end and the separate connection position 13 of the first principal arm of fixed bit 10 is consolidated
Fixed connection, the quantity of the second reinforcer is multiple, and multiple second reinforcers are set in turn between two the second principal arms, by two
Second principal arm is fixedly connected.
Optionally, connection position 13 includes the 3rd main frame body and the 3rd reinforcer, wherein, the 3rd main frame body includes two the 3rd
Principal arm, the 3rd principal arm is fixedly connected with one end away from the first principal arm of the second principal arm, and the 3rd principal arm is parallel with the first principal arm
Set, the quantity of the 3rd reinforcer be it is multiple and be set in turn between the first principal arm and the 3rd principal arm, the 3rd reinforcer also according to
It is secondary to be arranged between two the 3rd principal arms, the first principal arm, the second principal arm and the 3rd principal arm are fixed by the 3rd reinforcer and connected
It is connected in entirety.
The transition joint arm 14 can be arranged at the both sides of arm support main body 20 after multiple combinations, for enhancing arm support rigidity, side
To stability and bending resistance, specific combination is selected according to actual condition.
It second, refer to shown in Fig. 3, for the truss arm 100 to increase joint arm 15, increasing joint arm 15 includes fixed bit 10 and connection
Position 13, wherein, the quantity of connection position 13 is located at for two and respectively the both sides of fixed bit 10 along its length, and the connection position 13 was both
It can connect, can also be connected with the connection position 13 of above-mentioned transition joint arm 14 with the connection position 13 of adjacent increasing joint arm 15.
Optionally, connection position 13 is defined as the first connection position 153 and the second connection position 155, and the first connection position 153 and
Two connection positions 155 are arranged in parallel, and each connection position 13 is provided with multiple connecting portions, and connecting portion can be with adjacent connection position 13
Connecting portion is fixedly connected, so as to carry out the multiple combination of truss arm 100 connections.
Optionally, which includes the first fixing piece, the first reinforcer and the first main frame body 102, wherein, first
Main frame body 102 is two and is arranged in parallel, and the first reinforcer is multiple and is respectively arranged between two the first main frame bodies 102,
First fixing piece includes wearing fixing piece, this wears fixing piece and is passed through and compared with the first body frame from multiple first reinforcers successively
Body 102 is fixed, and wears and mounting portion 105 is provided on fixing piece, so as to be fixedly connected with arm support main body 20.
Optionally, which is rectangular box structure, and the is additionally provided between two connection positions 13 and fixed bit 10
Four principal arms and the 4th reinforcer, wherein, the quantity of the 4th principal arm is arranged in parallel for two and compared with the first principal arm, and the 4th strengthens
The quantity of part is multiple, and multiple 4th reinforcers can be arranged between the first principal arm and the 4th principal arm, two neighboring 4th master
Between arm, which is fixed as by an entirety by the 4th principal arm and the 4th reinforcer.
The truss arm 100 that the utility model embodiment 1 provides has an advantageous effect in that：
Design it is reasonable, simple in structure, in, the actual condition of large-tonnage crawler crane make choice use, pass through
Connector is fixedly installed in arm support main body 20, so as to increase arm support rigidity and bending resistance, improves the load-carrying ability of crane.
Embodiment 2
The utility model embodiment 2 provides a kind of crane and strengthens jib structure 200, refer to shown in Fig. 4, the lifting
Machine, which strengthens jib structure 200, includes the truss arm 100 that arm support main body 20 and embodiment 1 provide, and the truss arm 100 is along arm support main body
20 length direction fixed setting, is described as follows：
The truss arm 100 includes transition joint arm group and increases joint arm group, and transition joint arm group is located at the both ends for increasing joint arm group, according to
Actual condition come increase or reduce increase joint arm group quantity, so as to fulfill various combination so that the crane strengthen arm support knot
The coverage of structure 200 expands.
In the utility model embodiment 1, increasing joint arm group includes at least one increasing joint arm 15,15 edge of at least one increasing joint arm
The length direction of arm support main body 20 is sequentially connected fixed setting, when the quantity for increasing joint arm 15 is multiple, two neighboring increasing joint arm
15 are fixedly connected by connection position 13, and the fixed bit 10 of each increasing joint arm 15 is in the same plane.Transition joint arm group includes the
One transition joint arm 142 and the second transition joint arm 146, wherein, First Transition joint arm 142, which is located at, increases the one of joint arm group length direction
End, the second transition joint arm 146 be located at increase joint arm group length direction the other end, and the connection position 13 of First Transition joint arm 142 with
The connection position 13 for increasing 15 one end of joint arm is fixedly connected, the connection position 13 of the second transition joint arm 146 and the company for increasing 15 other end of joint arm
Position 13 is connect to be fixedly connected.
When truss arm 100 is influenced be subject to factors such as wind loads, arm support can be made to generate lateral force, arm support main body 20 and truss arm
100 rock-steady structures formed can effectively bear lateral force, so as to improve the lateral stability of jib structure.Optionally, arm
Frame body 20 includes the first side and the second side in the width direction, and transition joint arm group and the quantity for increasing joint arm group are two,
In transition joint arm group and increase the first side that joint arm group is located at arm support main body 20, another transition joint arm group and increasing joint arm group position
In the second side of arm support main body 20, when setting, two groups of transition joint arm groups and increasing joint arm group are symmetrically disposed on arm support main body 20
Both sides.
Truss arm 100 should be fixedly connected with arm support main body 20 by connectors such as axis pins so that the crane reinforcement arm
Frame structure 200 is convenient for disassembly and assembly, can demand any combination, increase large-tonnage crawler crane boom main body single-piece hauled weight
And size marking, it is convenient and practical, have a wide range of application.
Embodiment 3
Researcher strengthens jib structure 200, in above-described embodiment by research to crane provided by the utility model
On the basis of 2, following optional other structures schemes can be also made, the crane which provides strengthens jib structure 200
The crane reinforcement jib structure 200 provided with embodiment 2 is essentially identical, and difference is described as follows：
It refer to shown in Fig. 5, which includes two transition joint arm groups, and two transition joint arm groups are symmetrically disposed on
The both sides of arm support main body 20, each transition joint arm group include 142 and second transition joint arm 146 of First Transition joint arm, this first
142 and second transition joint arm 146 of transition joint arm is back to 13 and second transition segment of connection position of setting, i.e. First Transition joint arm 142
The connection position 13 of arm 146 matches, and is fixedly connected by connector, and the crane of the structure strengthens jib structure 200 can be
The rigidity and lateral stability of arm support main body 20 are improved in a certain range.
The crane that the utility model embodiment 3 provides is strengthened jib structure 200 and is had an advantageous effect in that：
The load-carrying ability of large-tonnage crawler crane, the lateral stability of boom system, the facility of arm support dismounting in raising
Property and the transport of full single-piece weight and dimensional standard, it is convenient for disassembly and assembly, carry out assembling adjusting according to different operating modes, meet weight and
The transport requirement of size.
Embodiment 4
The utility model embodiment 4 provides a kind of crawler crane, including gantry body and embodiment 2, embodiment 3
The crane of offer strengthens jib structure 200, and gantry body is strengthened jib structure 200 with crane and is fixedly connected.
The arm support of existing crawler crane using single armed form, in order to meet different duty requirements, need to mostly consider big by
Tonnage caterpiller crane arm support carries out appropriate fractionation and combination, strengthens jib structure 200 by the crane, can improve arm
Rigidity, lateral stability and the bending resistance of frame body 20 effectively improve the stability and stressing conditions of entire arm support, so as to
Improve the load-carrying ability of crane.
The truss arm 100 can be disassembled from arm support main body 20, effectively reduced the sectional dimension of arm support main body 20, made
It obtains the weight of arm support main body 20 and size meets transport requirement.
The crane, which is strengthened including in jib structure 200, increases joint arm 15 and transition joint arm 14, increases joint arm 15 by adjusting
Quantity realize multiple combinations, meet the selection of various working, the load energy of long arm support or variable-amplitude auxiliary arm (tower condition) can be improved
Power is up to 10% or higher.
It should be noted that in the case where there is no conflict, the feature in embodiment in the utility model can be tied mutually
It closes.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modifications, equivalent replacements and improvements are made should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of truss arm (100), for being fixed at the arm support main body (20) of crawler crane, which is characterized in that described
Truss arm (100) is frame structure and the fixed bit (10) including that can be fixedly connected with arm support main body (20)；
The fixed bit (10) includes the first main frame body (102), first be fixedly installed between first main frame body (102)
Reinforcer and the first fixing piece that can be fixedly installed on arm support main body (20), first main frame body (102) include two
First principal arm, the quantity of first reinforcer be it is multiple and be fixedly installed on two first principal arms successively, described first
Fixing piece is fixedly connected with first main frame body (102), and first fixing piece is provided with multiple mounting portions (105).
2. truss arm (100) according to claim 1, which is characterized in that the truss arm (100) is transition joint arm
(14), the transition joint arm (14) includes connection position (13) and strengthens position, and the connection position (13) is located at the fixed bit (10)
The one side of length direction, the position of strengthening are located at the opposite side of the fixed bit (10) length direction, the connection position (13) and
The reinforcement position is fixed by linking arm；
The connection position (13) is provided with multiple connecting portions, and the angle strengthened between position and the fixed bit (10) is sharp
Angle.
3. truss arm (100) according to claim 2, which is characterized in that the reinforcement position includes the second main frame body (107)
With the second reinforcer, second main frame body (107) includes two the second principal arms, one end of second principal arm and described first
Principal arm is fixedly connected, and the quantity of second reinforcer is multiple and is set in turn between two second principal arms；
The connection position (13) includes the 3rd main frame body and the 3rd reinforcer, and the 3rd main frame body includes two the 3rd principal arms,
3rd principal arm is fixedly connected with one end away from first principal arm of second principal arm, the number of the 3rd reinforcer
It measures to be multiple and be set in turn between first principal arm and/or the 3rd principal arm.
4. truss arm (100) according to claim 1, which is characterized in that the truss arm (100) is increasing joint arm (15),
The increasing joint arm (15) further includes connection position (13), and the quantity of the connection position (13) is for two and respectively positioned at the fixed bit
(10) both sides along its length；
Each connection position (13) is provided with multiple connecting portions, and the connecting portion can be with the adjacent connection position (13)
Connecting portion is fixedly connected.
5. truss arm (100) according to claim 4, which is characterized in that the connection position (13) is the first connection position
(153) it is arranged in parallel with the second connection position (155), first connection position (153) with second connection position (155)；
First fixing piece includes wearing fixing piece, and the fixing piece that wears is passed through from first reinforcer, the installation
Portion (105) wears fixing piece described in being located at；
It is fixed between two connection positions (13) by the 4th principal arm and the 4th reinforcer.
6. a kind of crane strengthens jib structure (200), which is characterized in that appoints including arm support main body (20) and claim 1-5
Truss arm (100) described in meaning one, the truss arm (100) are fixedly installed along the length direction of the arm support main body (20).
7. crane according to claim 6 strengthens jib structure (200), which is characterized in that truss arm (100) bag
It includes transition joint arm group and increases joint arm group；
The increasing joint arm group includes at least one increasing joint arm (15), and at least one joint arm (15) that increases is along the arm support main body
(20) length direction is sequentially connected fixed setting；
The transition joint arm group includes First Transition joint arm (142) and the second transition joint arm (146), the First Transition joint arm
(142) it is located at one end of the increasing joint arm group length direction, second transition joint arm (146) is located at the increasing joint arm group length
The other end in direction.
8. crane according to claim 7 strengthens jib structure (200), which is characterized in that the arm support main body (20)
Including the first side in the width direction and the second side, the transition joint arm group and the quantity for increasing joint arm group are two,
In a transition joint arm group and the joint arm group that increases be located at the first side of the arm support main body (20), another described transition
Joint arm group and the second side for increasing joint arm group and being located at the arm support main body (20).
9. crane according to claim 6 strengthens jib structure (200), which is characterized in that truss arm (100) bag
Two transition joint arm groups are included, two transition joint arm groups are symmetrically disposed on the both sides of the arm support main body (20)；
The transition joint arm group includes First Transition joint arm (142) and the second transition joint arm (146), the First Transition joint arm
(142) with second transition joint arm (146) back to setting, the connecting portion and described second of the First Transition joint arm (142)
The connecting portion of transition joint arm (146) is fixedly connected.
10. a kind of crawler crane, which is characterized in that including rising described in gantry body and claim 6-9 any one
Heavy-duty machine strengthens jib structure (200)；
The gantry body is strengthened jib structure (200) with the crane and is fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721559585.6U CN207418163U (en) | 2017-11-21 | 2017-11-21 | Truss arm, crane strengthen jib structure and crawler crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721559585.6U CN207418163U (en) | 2017-11-21 | 2017-11-21 | Truss arm, crane strengthen jib structure and crawler crane |
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| Publication Number | Publication Date |
|---|---|
| CN207418163U true CN207418163U (en) | 2018-05-29 |
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ID=62303610
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721559585.6U Active CN207418163U (en) | 2017-11-21 | 2017-11-21 | Truss arm, crane strengthen jib structure and crawler crane |
Country Status (1)
| Country | Link |
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| CN (1) | CN207418163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689408A (en) * | 2020-05-25 | 2020-09-22 | 中联重科股份有限公司 | Transition arm section, double-arm connecting assembly, double-arm support and light arm support |
-
2017
- 2017-11-21 CN CN201721559585.6U patent/CN207418163U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111689408A (en) * | 2020-05-25 | 2020-09-22 | 中联重科股份有限公司 | Transition arm section, double-arm connecting assembly, double-arm support and light arm support |
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