CN217398276U - Boom assembly and work machine - Google Patents
Boom assembly and work machine Download PDFInfo
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- CN217398276U CN217398276U CN202221120700.0U CN202221120700U CN217398276U CN 217398276 U CN217398276 U CN 217398276U CN 202221120700 U CN202221120700 U CN 202221120700U CN 217398276 U CN217398276 U CN 217398276U
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Abstract
The utility model relates to an operation machinery technical field provides a jib subassembly and operation machinery. The arm support assembly comprises a first arm support, a second arm support and a connecting frame. The first arm support comprises a first arm support extension section formed by mutually splicing a plurality of arm sections. The second arm support comprises a second arm support extension section formed by mutually splicing a plurality of arm sections. The connecting frame is detachably connected between the arm section side surface of the first arm support extension section and the arm section side surface of the second arm support extension section. Through the structural arrangement, when the single-arm support is required to be used, the connecting frame can be directly disassembled; when the connecting frame is required to be used as a double-arm frame, the connecting frame is arranged between the arm section side surface of the first arm frame extension section and the arm section side surface of the second arm frame extension section. Therefore, on the one hand, the disassembly and assembly process of the arm frame assembly is simple, and the disassembly and assembly efficiency is high. On the other hand, the arm frame assembly can be used as a single arm frame and also can be used as a double-arm frame, and the use flexibility is improved.
Description
Technical Field
The utility model relates to an operating machinery technical field especially relates to an arm frame subassembly and operating machinery.
Background
The boom system is a key bearing structure of the hoisting equipment. In different operating environments, the tonnage requirements of the hoisting equipment are different. With the continuous development of the fields of petrifaction, maritime work and the like, the demand of large-tonnage cranes is continuously increased. In order to improve the carrying capacity of the boom system, it is usually necessary to adjust the single-arm boom system to the double-arm boom system. Transition connecting arm supports are generally arranged in a traditional double-arm support system. The transitional connection arm supports are arranged between adjacent arm sections of the single arm supports and between the two single arm supports so as to realize the splicing of the adjacent arm sections and the connection of the double arm supports at the same time. The double-arm frame system with the structure has the advantages of complex disassembly and assembly process and low disassembly and assembly efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a jib subassembly and operation machinery for the dismouting process of solving current jib subassembly is comparatively complicated, the lower problem of dismouting efficiency.
According to a first aspect of the present invention, there is provided an arm rest assembly, comprising: the device comprises a first arm support, a second arm support and a connecting frame.
The first arm support comprises a first arm support extension section formed by mutually splicing a plurality of arm sections. The second arm support comprises a second arm support extension section formed by mutually splicing a plurality of arm sections. The connecting frame is detachably connected between the arm section side surface of the first arm support extension section and the arm section side surface of the second arm support extension section.
According to the utility model provides a pair of cantilever crane subassembly, the link is by an at least section the arm festival concatenation constitutes.
According to the utility model provides a pair of cantilever crane subassembly, first cantilever crane still includes first last cantilever crane and first cantilever crane down. The first upper arm support is connected to one end of the first arm support extension section, and the first lower arm support is connected to the other end of the first arm support extension section.
The second arm support further comprises a second upper arm support and a second lower arm support. The second upper arm support is connected to one end of the second arm support extension section, and the second lower arm support is connected to the other end of the second arm support extension section.
According to the utility model provides a pair of cantilever crane subassembly, first go up the cantilever crane with the tip of cantilever crane all is provided with hoist and mount loose pulley assembly on the second. The hoisting pulley assembly is used for hoisting a heavy object. The end parts of the first lower arm support and the second lower arm support are both provided with a rotary table connecting part. The turntable connecting part is used for being connected with a turntable of the working machine.
According to the utility model provides a pair of cantilever crane subassembly, it is each adjacent between the arm festival the link with first cantilever crane reaches between the second cantilever crane first last cantilever crane reaches first cantilever crane with between the first cantilever crane extension section the second is gone up the cantilever crane and is reached under the second cantilever crane with be the connection of dismantling between the second cantilever crane extension section.
According to the utility model provides a pair of cantilever crane subassembly, it is each adjacent between the arm festival the link with first cantilever crane reaches between the second cantilever crane first last cantilever crane reaches first cantilever crane with between the first cantilever crane extension section the second goes up the cantilever crane and the second cantilever crane reaches under the second cantilever crane with all connect through coupling assembling between the second cantilever crane extension section.
According to the utility model provides a pair of cantilever crane subassembly, coupling assembling is including connecting public head and connecting female head. The connecting male head and/or the connecting female head are respectively arranged on each arm section, the side wall of the first arm support extension section, the side wall of the second arm support extension section, the first upper arm support, the first lower arm support, the second upper arm support and the second lower arm support.
The adjacent arm sections, the connecting frame, the first arm support and the second arm support, the first upper arm support and the first arm support extension section, the first lower arm support and the first arm support extension section, the second upper arm support and the second arm support extension section, and the second lower arm support and the second arm support extension section are connected in a matched mode through the connecting male head and the connecting female head.
According to the utility model provides a pair of cantilever crane subassembly, connect public head including first otic placode, second otic placode and round pin axle. The first ear plate and the second ear plate are arranged in parallel and at intervals. The female connection head comprises a third lug plate, a fourth lug plate and a fifth lug plate. The third ear plate, the fourth ear plate and the fifth ear plate are arranged in parallel and at intervals. A first insertion cavity is formed between the third lug plate and the fourth lug plate. And a second insertion cavity is formed between the fourth lug plate and the fifth lug plate. The first lug plate is inserted into the first insertion cavity. The second lug plate is inserted into the second insertion cavity. The first ear plate, the second ear plate, the third ear plate, the fourth ear plate and the fifth ear plate are respectively provided with connecting holes which are mutually matched. The pin shaft sequentially penetrates through each connecting hole, so that the connecting male head is connected with the connecting female head.
According to the utility model provides a pair of cantilever crane subassembly, first cantilever crane with the interval connection has a plurality ofly between the second cantilever crane the link.
According to a second aspect of the present invention, there is provided a work machine comprising a boom assembly as described above.
The utility model provides an among the jib subassembly, first cantilever crane includes the first cantilever crane extension section that constitutes by the mutual concatenation of multisection arm festival. The second arm support comprises a second arm support extension section formed by mutually splicing a plurality of arm sections. The connecting frame is detachably connected between the arm section side surface of the first arm support extension section and the arm section side surface of the second arm support extension section.
Through the structural arrangement, when the single-arm support is required to be used, the connecting frame can be directly disassembled; when the connecting frame is required to be used as a double-arm frame, the connecting frame is arranged between the arm section side surface of the first arm frame extension section and the arm section side surface of the second arm frame extension section. From this, on the one hand, this jib subassembly's dismouting process is comparatively simple, and dismouting efficiency is higher. On the other hand, the arm frame assembly can be used as a single arm frame and also can be used as a double-arm frame, and the use flexibility is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a boom assembly provided by the present invention;
fig. 2 is a schematic structural view of a connection assembly in a boom assembly provided by the present invention;
reference numerals:
100. a first arm support; 101. a first boom extension section; 102. a first upper arm support; 103. a first lower arm support; 200. a second arm support; 201. a second boom extension section; 202. a second upper arm support; 203. a second lower arm support; 300. a connecting frame; 400. an arm section; 501. hoisting the pulley assembly; 502. a turntable connecting portion; 601. a first ear plate; 602. a second ear plate; 603. a third ear panel; 604. a fourth ear plate; 605. a fifth ear plate; 606. a first insertion cavity; 607. a second plug-in mounting cavity; 608. and (7) a pin shaft.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, without mutual contradiction, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification to make the objects, technical solutions, and advantages of the embodiments of the present invention clearer, and the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
A boom assembly and a work machine according to embodiments of the present invention will be described with reference to fig. 1 and 2. It should be understood that the following description is only exemplary of the present invention, and is not intended to limit the present invention in any way.
An embodiment of the first aspect of the present invention provides an arm support assembly, as shown in fig. 1, the arm support assembly includes: a first arm support 100, a second arm support 200 and a connecting frame 300.
The first boom 100 includes a first boom extension section 101 formed by mutually splicing a plurality of boom sections 400. The second boom 200 comprises a second boom extension 201 formed by mutually splicing a plurality of boom sections 400. The connecting frame 300 is detachably connected between the side of the arm section 400 of the first arm support extension 101 and the side of the arm section 400 of the second arm support extension 201.
Through the structure arrangement, when the single-arm support is required to be used, the connecting frame 300 can be directly disassembled; when it is desired to use the connection frame 300 as a double boom, it is mounted between the side of the arm section 400 of the first boom extension 101 and the side of the arm section 400 of the second boom extension 201. From this, on the one hand, this jib subassembly's dismouting process is comparatively simple, and dismouting efficiency is higher. On the other hand, the arm support assembly can be used as a single arm support and can also be used as a double-arm support, and the use flexibility is improved.
In one embodiment of the present invention, the connecting frame 300 is formed by splicing at least one arm segment 400.
According to the above-described embodiments, the first boom extension 101, the second boom extension 201, and the connecting frame 300 are all composed of one or more boom sections 400. Therefore, the first boom extension section 101, the second boom extension section 201 and the connecting frame 300 have universal interchangeability, and on one hand, the processing cost of the boom assembly can be greatly reduced. On the other hand, the lengths of the first boom extension section 101, the second boom extension section 201 and the connecting frame 300 can be flexibly adjusted, so that the boom assembly is suitable for different working conditions, and the use flexibility of the boom assembly is greatly improved.
In the using process, when the cantilever crane is required to be used as a single-arm cantilever crane, the connecting frame 300 can be detached, so that the first cantilever crane 100 and the second cantilever crane 200 are independent from each other and can be respectively used as the single-arm cantilever crane. When the cantilever crane is required to be used as a dual-arm cantilever crane, the connecting frame 300 can be installed between the first cantilever crane 100 and the second cantilever crane 200, so that the first cantilever crane 100 and the second cantilever crane 200 form a connecting whole and can be used as the dual-arm cantilever crane. Alternatively, when the length of the connecting frame 300 needs to be extended for the first time, a proper amount of arm sections 400 on the first arm extension section 101 or/and the second arm extension section 201 may be detached and connected to the connecting frame 300. Or when the first boom extension 101 or the second boom extension 201 needs to be extended, the connection frame 300 or the second boom extension 201 or the appropriate amount of arm sections 400 on the first boom extension 101 may be detached and connected to the first boom extension 101 or the second boom extension 201. Therefore, the arm frame assembly meets the use requirements of different working conditions.
It should be noted here that the present invention is not limited to any particular number of the connection frames 300. For example, in an embodiment of the present invention, a plurality of connection frames 300 are connected between the first arm support 100 and the second arm support 200 at intervals. In the embodiment shown in fig. 1, 3 connecting frames 300 are spaced between the first arm support 100 and the second arm support 200. By providing the plurality of connection frames 300 between the first boom 100 and the second boom 200, the connection strength between the first boom 100 and the second boom 200 can be improved.
In an embodiment of the present invention, the first arm support 100 further includes a first upper arm support 102 and a first lower arm support 103. The first upper boom 102 is connected to one end of the first boom extension 101, and the first lower boom 103 is connected to the other end of the first boom extension 101.
The second boom 200 further comprises a second upper boom 202 and a second lower boom 203. The second upper boom 202 is connected to one end of the second boom extension 201. The second lower boom 203 is connected to the other end of the second boom extension end 201.
Further, in an embodiment of the present invention, the ends of the first upper arm support 102 and the second upper arm support 202 are provided with hoisting pulley assemblies 501. The hoisting pulley assembly 501 is used for hoisting heavy objects. The end parts of the first lower arm support 103 and the second lower arm support 203 are both provided with a turntable connecting part 502. The turret connecting portion 502 is used to connect with a turret of a work machine.
For example, as shown in fig. 1, a right end of the first boom extension 101 is connected to a left end of the first upper boom 102, and a left end of the first boom extension 101 is connected to a right end of the first lower boom 103. The right end of the second arm support extension 201 is connected with the left end of the second upper arm support 202, and the left end of the second arm support extension 201 is connected with the right end of the second lower arm support 203. The hoisting pulley assemblies 501 are respectively arranged at the right ends of the first upper arm support 102 and the second upper arm support 202. Hoisting pulley assembly 501 includes a plurality of pulleys arranged side by side at intervals, and the pulleys are wound and connected with a steel wire rope for hoisting heavy objects. The left ends of the first lower arm support 103 and the second lower arm support 203 are respectively provided with a turntable connecting part 502. The turret connecting portion 502 is connected to a turret of the work machine. The turntable of the working machine can drive the first boom 100 and the second boom 200 to rotate, so as to adjust the hoisting position.
In an embodiment of the present invention, the connection between each adjacent arm section 400, the connection frame 300 and the first arm support 100 and the second arm support 200, the first upper arm support 102 and the first lower arm support 103 and the first arm support extension 101, and the second upper arm support 202 and the second lower arm support 203 and the second arm support extension 201 are detachably connected.
Further, in an embodiment of the present invention, the adjacent arm sections 400, the connection frame 300, the first arm support 100 and the second arm support 200, the first upper arm support 102, the first lower arm support 103, and the first arm support extension 101, and the second upper arm support 202, the second lower arm support 203, and the second arm support extension 201 are all connected by a connection assembly.
More specifically, in one embodiment of the present invention, the connection assembly includes a connection male and a connection female. A connecting male head and/or a connecting female head are respectively arranged on each arm section 400, the side wall of the first arm support extension section 101, the side wall of the second arm support extension section 201, the first upper arm support 102, the first lower arm support 103, the second upper arm support 202 and the second lower arm support 203.
The adjacent arm sections 400, the connecting frame 300, the first arm support 100 and the second arm support 200, the first upper arm support 102 and the first arm support extension section 101, the first lower arm support 103 and the first arm support extension section 101, the second upper arm support 202 and the second arm support extension section 201, and the second lower arm support 203 and the second arm support extension section 201 are connected in a matched manner through a connecting male head and a connecting female head.
For example, as shown in fig. 1 and 2, one end of the arm section 400 is provided with a connecting male head, and the other end of the arm section 400 is provided with a connecting female head. The connecting male head of each arm section 400 is connected with the connecting female head of the adjacent arm section 400 in a matching way.
The left end of the first upper arm support 102 is provided with a connecting male head or a connecting female head, the right end of the arm section 400 adjacent to the first upper arm support 102 is provided with a connecting female head or a connecting male head, and the connecting male head and the connecting female head are connected in a matching manner. Similarly, the left end of the second upper arm support 202 is provided with a connecting male head or a connecting female head, and the right end of the arm section 400 adjacent to the second upper arm support 202 is provided with a connecting female head or a connecting male head, which are connected with the connecting female head through the connecting male head in a matching manner.
The right end of the first lower arm support 103 is provided with a connecting male head or a connecting female head, the left end of the arm section 400 adjacent to the first lower arm support 103 is provided with a connecting female head or a connecting male head, and the two are connected in a matching manner through the connecting male head and the connecting female head. Similarly, the right end of the second lower arm support 203 is provided with a connecting male head or a connecting female head, the left end of the arm section 400 adjacent to the second lower arm support 203 is provided with a connecting female head or a connecting male head, and the two are connected in a matching manner through the connecting male head and the connecting female head.
The side walls of the first boom extension section 101 and the second boom extension section 201 are respectively provided with a male connection head or a female connection head for connecting with the connecting frame 300.
Through the structural arrangement, the same connecting components are used among the arm sections 400, between the first arm support 100 and the connecting frame 100, between the first upper arm support 102 and the first lower arm support 103 and the first arm support extension section 101, and between the second upper arm support 202 and the second lower arm support 203 and the second arm support extension section 201, so that the arm sections 400 before the first arm support extension section 101, the second arm support extension section 201 and the connecting frame 300 can be conveniently exchanged, and the processing cost of the arm frame assembly is saved.
In one embodiment of the present invention, the connecting male portion includes a first ear plate 601, a second ear plate 602, and a pin 608. The first ear plate 601 and the second ear plate 602 are disposed in parallel and spaced apart. The female connection head includes a third ear plate 603, a fourth ear plate 604 and a fifth ear plate 605. The third, fourth and fifth ear plates 603, 604, 605 are disposed in parallel and spaced apart relation. A first insertion cavity 606 is formed between the third ear plate 603 and the fourth ear plate 604. A second insertion cavity 607 is formed between the fourth ear plate 604 and the fifth ear plate 605. The first ear plate 601 is inserted into the first insertion cavity 606. The second ear plate 602 is inserted into the second insertion cavity 607. The first ear plate 601, the second ear plate 602, the third ear plate 603, the fourth ear plate 604 and the fifth ear plate 605 are respectively provided with connecting holes which are mutually matched. The pin 608 is inserted into each connecting hole in sequence, so that the connecting male head is connected with the connecting female head.
Taking the connection assembly between the connection frame 300 and the first boom extension 101 as an example, as shown in fig. 2, a first ear plate 601 and a second ear plate 602 are connected to a sidewall of the first boom extension 101 at intervals. For example, the first lug plate 601 and the second lug plate 602 may be welded to the side wall of the first boom extension 101. The end arm section 400 of the connecting frame 300 is provided with a third ear plate 603, a fourth ear plate 604 and a fifth ear plate 605 at intervals. A first insertion cavity 606 is formed between the third ear plate 603 and the fourth ear plate 604, and the first ear plate 601 is inserted into the first insertion cavity 606. A second insertion cavity 607 is formed between the fourth ear plate 604 and the fifth ear plate 605, and the second ear plate 602 is inserted into the second insertion cavity 607. The pin 608 passes through the connecting holes of the third ear plate 603, the first ear plate 601, the fourth ear plate 604, the second ear plate 602 and the fifth ear plate 605 in sequence. Thereby, the connection frame 300 is connected with the first boom extension 101.
Through inserting first otic placode 601 to the first cartridge cavity 606 that is formed by third otic placode 603 and fourth otic placode 604, insert second otic placode 602 to the second cartridge cavity 607 that is formed by fourth otic placode 604, can greatly promote the joint strength between each part, and then promote the reliability of jib subassembly.
It should be noted here that the connection manner between the first ear plate 601, the second ear plate 602, the third ear plate 603, the fourth ear plate 604, and the fifth ear plate 605 and each arm section 400, the first upper arm support 102, the first lower arm support 103, the second upper arm support 202, the second lower arm support 203, the first arm support extension 101, and the second arm support extension 201 includes, but is not limited to, welding connection.
An embodiment of a second aspect of the present invention provides a work machine, comprising a boom assembly as described above.
It should be noted that the present invention is not limited to the specific type of the work machine. For example, in one embodiment of the present invention, the work machine includes a crane.
Further, since the work machine comprises the boom assembly as described above, it also has the advantages as described above.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An arm support assembly is characterized by comprising a first arm support, a second arm support and a connecting frame,
the first arm support comprises a first arm support extension section formed by mutually splicing a plurality of arm sections, the second arm support comprises a second arm support extension section formed by mutually splicing a plurality of arm sections, and the connecting frame is detachably connected between the arm section side surface of the first arm support extension section and the arm section side surface of the second arm support extension section.
2. The arm support assembly of claim 1, wherein the connecting frame is formed by splicing at least one section of the arm segment.
3. The boom assembly of claim 2, wherein the first boom further comprises a first upper boom connected to one end of the first boom extension and a first lower boom connected to the other end of the first boom extension,
the second arm support further comprises a second upper arm support and a second lower arm support, the second upper arm support is connected to one end of the second arm support extension section, and the second lower arm support is connected to the other end of the second arm support extension section.
4. The boom assembly of claim 3, wherein the ends of the first upper boom and the second upper boom are each provided with a hoisting pulley assembly for hoisting a weight; the end parts of the first lower arm support and the second lower arm support are both provided with a rotary table connecting part, and the rotary table connecting part is used for being connected with a rotary table of the operation machinery.
5. The boom assembly of claim 3, wherein each adjacent boom section, the connection frame and the first boom and the second boom, the first upper boom and the first lower boom and the first boom extension, and the second upper boom and the second lower boom and the second boom extension are detachably connected.
6. The boom assembly of claim 5, wherein the adjacent boom sections, the connecting frame and the first boom and the second boom, the first upper boom and the first lower boom and the first boom extension, and the second upper boom and the second lower boom and the second boom extension are connected by connecting components.
7. The boom frame assembly of claim 6, wherein the connecting assembly comprises a connecting male head and a connecting female head, the connecting male head and/or the connecting female head are respectively arranged on each of the boom sections, the side wall of the first boom extension section, the side wall of the second boom extension section, the first upper boom, the first lower boom, the second upper boom and the second lower boom,
the adjacent arm sections, the connecting frame, the first arm support and the second arm support, the first upper arm support and the first arm support extension section, the first lower arm support and the first arm support extension section, the second upper arm support and the second arm support extension section, and the second lower arm support and the second arm support extension section are connected in a matched mode through the connecting male head and the connecting female head.
8. The boom assembly of claim 7, wherein the male connecting head comprises a first ear plate, a second ear plate and a pin, the first ear plate and the second ear plate are parallel and spaced, the female connecting head comprises a third ear plate, a fourth ear plate and a fifth ear plate, the third ear plate, the fourth ear plate and the fifth ear plate are parallel and spaced, a first inserting cavity is formed between the third ear plate and the fourth ear plate, a second inserting cavity is formed between the fourth ear plate and the fifth ear plate, the first ear plate is inserted into the first inserting cavity, the second ear plate is inserted into the second inserting cavity, the first ear plate, the second ear plate, the third ear plate, the fourth ear plate and the fifth ear plate are respectively provided with connecting holes which are mutually adaptive, and the pin is sequentially inserted into the connecting holes, so that the connecting male head is connected with the connecting female head.
9. The boom frame assembly of any one of claims 1-8, wherein a plurality of the connecting frames are connected between the first boom and the second boom at intervals.
10. A work machine comprising an arm support assembly according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120700.0U CN217398276U (en) | 2022-05-10 | 2022-05-10 | Boom assembly and work machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221120700.0U CN217398276U (en) | 2022-05-10 | 2022-05-10 | Boom assembly and work machine |
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| CN217398276U true CN217398276U (en) | 2022-09-09 |
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| CN202221120700.0U Active CN217398276U (en) | 2022-05-10 | 2022-05-10 | Boom assembly and work machine |
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