CN215886139U

CN215886139U - Arm support

Info

Publication number: CN215886139U
Application number: CN202122185944.9U
Authority: CN
Inventors: 潘丹丹; 周玉龙; 张晨
Original assignee: Construction Machinery Branch of XCMG
Current assignee: Construction Machinery Branch of XCMG
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-22
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an arm support which comprises a cuboid frame, an ear plate assembly and a pin shaft piece, wherein the ear plate assembly comprises a rectangular base and a pin shaft piece; the cuboid frame is provided with a plurality of groups; the ear plate assemblies are arranged on eight vertexes of the rectangular frame and are arranged along the length direction of the rectangular frame, through holes are formed in the ear plate assemblies, each ear plate assembly comprises a first ear plate and a second ear plate, and the first ear plate and the second ear plate are arranged on two adjacent vertexes respectively; the pin shaft pieces are provided with a plurality of groups, and the two cuboid frames are connected with the ear plate assemblies through the pin shaft pieces; the two ends of the arm support provided by the utility model can be interchanged, and the front end and the rear end are not needed to be distinguished when the two rectangular frames are connected, so that the temporary turning direction caused by different lug plates is avoided, the assembling speed is accelerated, and the assembling efficiency is improved.

Description

Arm support

Technical Field

The utility model relates to an arm support, and belongs to the field of crane connecting pieces.

Background

The crawler crane is a truss type arm support structure crane adopting a crawler traveling chassis, and the arm support is a structural member which has a certain amplitude and lifting height and is used for suspending articles; the upper vehicle structure of the crawler crane mainly comprises a truss arm, and comprises a main arm, an auxiliary arm, an amplitude variation arm support, a main arm mast, an auxiliary arm mast, a tower arm, a super-lift device and the like, wherein the arm supports are assembled by arm sections, and the arm sections are hinged with each other by arm section joints through pin shafts; in the installation process of the whole machine, the connection of various arm supports also takes a considerable part of time, and the assembly efficiency is reduced, so that the research and development of an easily-assembled arm support joint to improve the assembly efficiency is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an arm support, which improves the assembly efficiency of a crawler crane.

In order to realize the purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides an arm support which comprises a cuboid frame, an ear plate assembly and a pin shaft piece, wherein the ear plate assembly comprises a rectangular base and a pin shaft piece; the cuboid frame is provided with a plurality of groups; the ear plate assemblies are arranged on eight vertexes of the rectangular frame and are arranged along the length direction of the rectangular frame, through holes are formed in the ear plate assemblies, each ear plate assembly comprises a first ear plate and a second ear plate, and the first ear plate and the second ear plate are arranged on two adjacent vertexes respectively; the pin shaft parts are provided with a plurality of groups, and the two cuboid frames are connected with the through holes on the lug plate components through the pin shaft parts.

Furthermore, the number of the pin shaft elements is the same as that of the first lug plates.

Furthermore, the pin shaft part comprises a pin shaft and a clamp, the pin shaft is accommodated in a through hole in the lug plate assembly, and a hole matched with the clamp is formed in the pin shaft.

Furthermore, an oblique beam is further arranged on the cuboid frame and connected with adjacent longitudinal beams on the cuboid frame for stabilizing the arm support.

Furthermore, the oblique beam is provided with a plurality of groups.

Further, the second ear plate is configured with one more through hole than the first ear plate.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model provides an arm support which comprises a cuboid frame, an ear plate assembly and a pin shaft element; the cuboid frames are provided with a plurality of groups, and the cuboid frames also provide a foundation for the exchange of the two ends of the subsequent arm support; the arm support comprises a rectangular frame, wherein the lug plate components are arranged on eight vertexes of the rectangular frame and are arranged along the length direction of the rectangular frame, the lug plate components are provided with through holes and comprise a first lug plate and a second lug plate, a plurality of groups of pin shaft parts are arranged on the pin shaft parts, the two rectangular frames are connected with the lug plate components through the pin shaft parts, and the first lug plate and the second lug plate are respectively arranged on the two adjacent vertexes due to the shape of the rectangular frame and the lug plate components arranged on the eight vertexes.

Drawings

Fig. 1 is a structural diagram of an arm support provided in an embodiment of the present invention;

fig. 2 is a connection relationship diagram of the arm support provided in the embodiment of the present invention;

fig. 3 is a top view of a connection relationship of the arm support according to the embodiment of the present invention;

fig. 4 is a connection diagram of an ear plate assembly and a pin member according to an embodiment of the utility model.

In the figure: 1. a rectangular parallelepiped frame; 1-1, longitudinal beams; 1-2, a cross beam; 1-3, oblique beam; 2-1, a first ear plate; 2-2, a second ear plate; 3. a pin member.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood 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 description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example one

As shown in fig. 1 to 4, an arm support provided by an embodiment of the present invention includes a rectangular frame 1, an ear plate assembly, and a pin member 3.

The cuboid frame 1 is provided with a plurality of groups, and the number is designed according to the actual situation; the cuboid frame 1 is composed of four longitudinal beams 1-1, eight cross beams 1-2 and a plurality of oblique beams 1-3, the four longitudinal beams 1-1 and the eight cross beams 1-2 form a frame body, and the longitudinal beams 1-1 are connected with each other through the oblique beams 1-3 to stabilize the cuboid frame 1 and enhance the stability of the cuboid frame 1.

The eight vertexes of the rectangular frame 1 are provided with ear plate assemblies which are arranged along the length direction; the ear plate assembly is a connecting member provided with a through hole, and comprises a first ear plate 2-1 and a second ear plate 2-2, wherein the second ear plate 2-2 is configured with one more through hole than the first ear plate 2-1, the first ear plate 2-1 is a single-hole ear plate in the embodiment of the utility model, and the second ear plate 2-2 is a double-hole ear plate.

A single-hole ear plate and a double-hole ear plate are respectively arranged on any adjacent vertexes of the cuboid frame 1, namely the single-hole ear plate and the double-hole ear plate are arranged in a diagonal manner, and the rear views of the cuboid frame 1 projected from two ends in the length direction are the same; therefore, two ends of the arm support provided by the utility model can be interchanged, and the front end and the rear end are not needed to be distinguished when the two cuboid frames 1 are connected, so that the temporary turning direction caused by different lug plates is avoided, the assembling speed is accelerated, and the assembling efficiency is improved.

The pin shaft pieces 3 are provided with a plurality of groups, the two cuboid frames 1 are connected with the lug plate assemblies through the pin shaft pieces 3, and the number of the pin shaft pieces 3 is the same as that of the first lug plates 2-1; the pin shaft part 3 comprises a pin shaft and a clamp, a hole matched with the clamp is formed in the pin shaft, the pin shaft penetrates through a through hole in the lug plate assembly, the clamp penetrates through the hole in the pin shaft, and the lug plate assembly is fixed, so that the connection of the two cuboid frames 1 is realized.

Example two

The arm support provided by the embodiment of the utility model comprises a cuboid frame 1, an ear plate assembly and a pin shaft element 3.

The eight vertexes of the rectangular frame 1 are provided with ear plate assemblies which are arranged along the length direction; the lug plate assembly is a connecting piece provided with through holes and comprises a first lug plate 2-1 and a second lug plate 2-2, wherein the second lug plate 2-2 is configured to have one more through hole than the first lug plate 2-1, the first lug plate 2-1 is a double-hole lug plate in the embodiment of the utility model, and the second lug plate 2-2 is a three-hole lug plate, so that the effect of enhancing the connection stability can be achieved in a large-volume crawler crane.

A double-hole ear plate and a three-hole ear plate are respectively arranged on any adjacent vertexes of the cuboid frame 1, namely a form that the double-hole ear plate and the three-hole ear plate are crossed is adopted, and rear views projected from two ends of the cuboid frame 1 in the length direction are the same; therefore, when the two ends of the arm support provided by the utility model are adjusted, the assembly can still be realized, the front end and the rear end do not need to be distinguished when the two cuboid frames 1 are connected, the upper end, the lower end, the left end and the right end do not need to be distinguished, the assembly can be carried out nearby according to the actual situation, the temporary turning directions caused by different lug plates are avoided, the assembly speed is accelerated, and the assembly efficiency is improved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. An arm support is characterized by comprising a cuboid frame, an ear plate assembly and a pin shaft element; the cuboid frame is provided with a plurality of groups; the ear plate assemblies are arranged on eight vertexes of the rectangular frame and are arranged along the length direction of the rectangular frame, through holes are formed in the ear plate assemblies, each ear plate assembly comprises a first ear plate and a second ear plate, and the first ear plate and the second ear plate are arranged on two adjacent vertexes respectively; the pin shaft parts are provided with a plurality of groups, and the two cuboid frames are connected with the through holes on the lug plate components through the pin shaft parts.

2. The arm support according to claim 1, wherein the number of the pin members is the same as the number of the first ear plates.

3. The arm support according to claim 1, wherein the pin member comprises a pin and a clip, the pin is received in the through hole of the ear plate assembly, and the pin is provided with a hole matching with the clip.

4. The boom according to claim 1, wherein the rectangular frame is further provided with an oblique beam, and the oblique beam is connected with an adjacent longitudinal beam on the rectangular frame and used for stabilizing the boom.

5. The boom according to claim 4, characterized in that the oblique beams are provided with a plurality of groups.

6. An arm support according to claim 1, wherein the second lug is configured with one more through hole than the first lug.