WO2015032049A1

WO2015032049A1 - Boom structure and method for manufacturing same, boom and method for arranging same, and pumping device

Info

Publication number: WO2015032049A1
Application number: PCT/CN2013/082988
Authority: WO
Inventors: 黄大为
Original assignee: 中联重科股份有限公司; 湖南中联重科智能技术有限公司
Priority date: 2013-09-05
Filing date: 2013-09-05
Publication date: 2015-03-12

Abstract

Disclosed are a boom structure and a method for manufacturing same, a boom comprising the boom structure and a method for arranging same, and a pumping device. The boom structure comprises an integrally formed boom body and an installation portion provided on the boom body, and the installation portion is provided with a connection structure for connecting other boom structures or oil cylinders. The boom body is an integrated part formed in one piece. Assembling of adjacent boom structures and of a boom structure with an oil cylinder can be realized by means of the installation portion without the need of bending, simplifying the manufacture process. In addition, the boom body can be made of a light-weight material, so that the overall weight of the boom can be reduced.

Description

Boom structure and manufacturing method thereof, arm frame and arrangement method thereof, and pumping device

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a construction machine, and more particularly to a boom structure for a construction machine, and to a method of manufacturing the boom structure, a boom including the boom structure, a method of arranging the boom, and a pumping apparatus. Background technique

In construction machinery with booms (such as concrete pump trucks, etc.), since the length record of the boom is continuously refreshed, it is necessary to make the boom lighter while ensuring the strength and rigidity of the boom. Therefore, there is a tendency to manufacture a boom using materials such as aluminum alloy. However, the mechanical processing and welding properties of these materials have limitations and cannot meet the requirements of the traditional manufacturing process of the boom. E.g

In the boom of CN102900235A, when manufacturing the boom structure for forming the boom, it is first necessary to form an arm body having a box-shaped cross section, and then bending the two ends of the arm body to different degrees to initially form the head of the boom structure and The roots then need to be machined (eg, milled) at the head and tail to form the head hinge and root hinge, and also need to be milled to the lower edge of the side panel of the arm and machined at the lower edge of the side panel in the middle of the arm Out of the cylinder block. Finally, in order to locally increase the strength and stability of the boom structure, it is also necessary to provide reinforcing members (such as a clad plate, a reinforcing plate, etc.) at positions such as the head hinge seat, the root hinge seat, and the cylinder block.

Since the hinged joints at both ends of the boom need to be pretreated by different degrees of bending, the operation is difficult. The aluminum alloy arm body is a box-shaped structure, and the reinforcing ribs are arranged on the side plates, so that the bending of the structural members with strong rigidity, especially the bending of a large radius of curvature, is difficult to implement. In addition, when the box-shaped structural member is bent, the bending radius of the top plate and the bottom plate of the arm body are inevitably inconsistent, which may cause defects such as uneven deformation or micro-cracking of the plate surface. In addition, the cylinder block is obtained by milling the lower half of the side plate of the entire boom. The processing capacity is quite large, the material utilization rate is extremely low, and the straight This leads to an increase in manufacturing costs. In addition, the hinged seat at both ends of the boom and the opening position of the cylinder seat in the middle are required to be welded with a clad plate or a reinforcing plate. For aluminum alloys, whether it is ordinary welding (TIG welding, MIG welding) or agitating friction welding, the strength of the base metal near the heat affected zone of the welding will be reduced. The ordinary welding will reduce the strength of the base metal by about 30%, stirring friction The welding effect is relatively small about 10%. The end of the boom and the cylinder block are the key parts of the concentrated load. Welding operations in these high stress areas can cause cracking or even failure of the aluminum alloy arm.

Therefore, in the prior art, there is a problem that it is impossible to achieve both lightweightness and manufacturing convenience. Summary of the invention

It is an object of the present invention to provide a boom structure that is easy to manufacture.

In order to achieve the above object, the present invention provides a boom structure, characterized in that the boom structure includes an integrally formed arm body and a mounting portion provided on the arm body, the mounting portion having a connection for connecting other arms The structure of the frame structure or the cylinder.

The present invention also provides a boom, wherein the boom includes the boom structure of the present invention. The present invention also provides a pumping apparatus, the pumping apparatus comprising a cloth arm, wherein the cloth arm is a boom of the present invention.

The present invention also provides a method of manufacturing a boom structure, the method comprising: a. providing an integrally formed arm body; b, providing a mounting portion on the arm body, the mounting portion having a structure for connecting other arm frames Or the connection structure of the cylinder.

The present invention also provides a method of arranging a boom comprising arranging the boom using the boom structure of the present invention.

Through the above technical solution, the arm body is a unitary piece integrally formed without bending, and the installation of the adjacent arm frame structure and the arm frame structure and the oil cylinder can be realized by the mounting portion, which simplifies the manufacturing process. In addition, the arm body can be made of a lightweight material, thereby reducing the total weight of the boom.

Other features and advantages of the invention will be described in detail in the detailed description which follows. DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are in the In the drawing:

Figure 1 is a front elevational view showing a first embodiment of the boom structure of the present invention;

Figure 2 is an exploded perspective view of the boom structure of Figure 1;

Figure 3 is a front elevational view showing a second embodiment of the boom structure of the present invention;

Figure 4 is an exploded perspective view of the boom structure of Figure 3;

Figure 5 is a front elevational view showing a third embodiment of the boom structure of the present invention;

Figure 6 is an exploded perspective view of the boom structure of Figure 5;

Figure 7 is a perspective view showing the connection of the boom structure of the first embodiment of the present invention and the boom structure of the second embodiment;

Figure 8 is an exploded perspective view of Figure 7;

Figure 9 is a perspective view showing the connection of the boom structure of the second embodiment of the present invention and the boom structure of the third embodiment;

Figure 10 is an exploded perspective view of Figure 9;

Figure 11 is a cross-sectional view showing the structure of a boom of an embodiment of the present invention;

Fig. 12 is a front elevational view showing a state in which the third connecting structure is formed using the boom structure of Fig. 5. Description of the reference numerals

1 first connecting plate la reinforcing connecting piece 2 second connecting plate 3 third connecting plate

10 first boom structure 11 first arm body 12 first cylinder

20 second boom structure 21 second arm body 22 second cylinder

30 third boom structure 31 third arm 32 second gap

40 first external link 50 second external link S rib

HI first reaming H2 second reaming H3 third reaming H4 fourth reaming H5 fifth reaming H6 cylinder reaming H7 boom reaming

PI first pin P2 second pin P3 third pin P4 fourth pin P5 fifth pin P6 sixth pin P7 seventh pin P8 cylinder pin

P9 link pin

F1 side F2 surface F3 bottom surface

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are intended to be illustrative and not restrictive.

In the present invention, the orientation words such as "up, down, left, and right" as used herein generally refer to the upper, lower, left, and right as shown in the accompanying drawings; "inside and outside". It refers to the inside and outside of the outline of each component itself.

According to an aspect of the invention, a boom structure is provided, wherein the boom structure includes an integrally formed arm body and a mounting portion disposed on the arm body, the mounting portion having a structure for connecting other arm frames Or the connection structure of the cylinder.

In the boom structure of the present invention, the arm body is an integrally formed unitary piece, which does not need to be bent to form, for example, a hinge seat and a cylinder block in the prior art, and the adjacent arm frame structure and the installation between the arm frame structure and the oil cylinder can be It is realized by the mounting portion, thus simplifying the manufacturing process.

In addition, the arm body can be made of a lightweight material, thereby reducing the total weight of the boom. For example, the arm body can be made of an aluminum alloy, carbon fiber or the like (for example, extruded by aluminum alloy or hot-pressed with carbon fiber) to achieve light weight while ensuring desired mechanical properties such as strength.

In addition, the mounting portion can be provided in a variety of suitable manners, such as welding or using fasteners.

Preferably, the mounting portion may include a first connecting plate mounted on both sides of the root of the arm body 1. The root portion and the first connecting plate 1 are provided with first reaming holes HI corresponding to each other, and the first connecting plate 1 is further provided with a second reaming hole H2. Wherein, the first reaming hole HI and the second reaming hole H2 may be selected as needed to connect or install corresponding components. For example, the first reaming hole HI may be used to connect the external connecting rod, and the second reaming hole H2 may be used for connecting. The head of the upstream boom structure.

In a first preferred embodiment of the boom structure of the present invention, the arm body may be formed in a box structure, and the mounting portion may further include a second connecting plate 2 and/or mounted in a middle portion of the arm body. Or a third connecting plate 3 mounted on the head of the arm body (hereinafter the first boom structure 10 is an embodiment including the second connecting plate 2 and the third connecting plate 3, as shown in FIGS. 1 and 2 The middle portion and the second connecting plate 2 are provided with corresponding third reaming holes H3; the head portion and the third connecting plate 3 are provided with corresponding fourth reaming holes H4, The third connecting plate 3 is also provided with a fifth reaming hole H5. Wherein, the third reaming hole H3, the fourth reaming hole H4 and the fifth reaming hole H5 may be selected as needed to connect or install corresponding components. For example, the third reaming hole H3 is used for one end of the articulating cylinder, and the fifth reaming hole H5 The root portion for connecting the downstream boom structure, and the fourth reaming hole H4 is for connecting the external link. The boom structure of the present embodiment is suitable for the type in which the cylinder is disposed outside the arm body, and the type in which the reaming cannot be formed on the arm body under the restriction of the use condition.

Further, as described above, it is not necessary to have both the second connecting plate 2 and the third connecting plate 3 at the same time. For example, a reaming hole may be provided in the middle or the head of the arm body instead of the second connecting plate 2 or the third connecting plate 3.

In a second preferred embodiment of the boom structure of the present invention (i.e., the second boom structure 20 below), as shown in Figures 3 and 4, the arm body is formed as a box structure, the arm body The middle portion is provided with a cylinder reaming H6 for an articulated cylinder, and the head is provided with a boom reaming H7 for articulating an adjacent boom structure, and the bottom surface of the arm body is provided with a bottom portion extending from the head to the middle portion The first gap. In this embodiment, the second web 2 and the third web 3 are omitted from the first embodiment. Specifically, by providing the cylinder reaming H6 in the middle portion, the provision of the second web 2 is omitted, and by providing the boom reaming H7 in the head, the provision of the third web 3 is omitted. In other words, the cylinder reaming H6 can be used for one end of the articulated cylinder, the boom reaming H7 is used to articulate the root of the downstream boom structure, and the other end of the cylinder can pass through the second reaming H2 of the root of the downstream boom structure or additional Outside The linkage is hinged (as explained in detail below). In the present embodiment, since the first notch is opened, the cylinder can be placed inside the arm body, so that it is suitable for the third embodiment in which the boom is disposed on the inner side of the arm body in the boom structure of the present invention ( That is, in the following third boom structure 30), as shown in FIGS. 5 and 6, the arm body is formed in a box type structure, and the bottom surface of the root portion is provided with a second notch 32. The boom structure of the present embodiment also omits the second web 2 and the third web 3 as compared with the first embodiment, and is particularly suitable for being disposed at the extreme end of the boom. In the present embodiment, the boom structure may be connected to the upstream by the first reaming hole HI, and the cylinder may be hinged by the second reaming hole H2. Wherein, due to the opening of the second notch 32, the end of the cylinder hinged to the boom structure of the present embodiment may be disposed inside the arm body of the boom structure.

Further, as shown in Fig. 4, the first connecting plates 1 on both sides may be connected by a reinforcing connecting member la to increase the stability at the root of the boom structure. Among them, the reinforcing connecting member la may be in various suitable forms, such as a rod member or a connecting sleeve as shown.

Further, as described above, in the boom structure of the present invention, the arm body can be integrally molded in an appropriate manner, and a lightweight material can be employed. In order to ensure that the arm body has an appropriate strength, preferably, the inner side of the arm body may be integrally formed with a reinforcing rib S. The rib S can be formed into various appropriate shapes and placed in an appropriate position as long as the arm body can be reinforced and molded. For example, as shown in FIG. 11, the arm body is a box-shaped structure, and the reinforcing ribs S may be disposed at four corners of the box-shaped structure and formed to connect adjacent two faces (connecting side faces F1 and top faces F2, and connecting sides) The bent form of F1 and bottom surface F3).

According to another aspect of the present invention, a boom is provided, wherein the boom includes the boom structure of the present invention.

Preferably, the mounting portion may include a first connecting plate 1 mounted on both sides of the root of the arm body, and the root portion and the first connecting plate 1 are provided with first reaming holes HI corresponding to each other, The first connecting plate 1 is also provided with a second reaming hole H2. Wherein, the first reaming hole HI and the second reaming hole H2 may be selected as needed to connect or install corresponding components, for example, the first reaming hole HI may be used for connection The connecting rod, the second reaming H2, can be used to connect the head of the upstream boom structure. Additionally, the boom structure can include at least one of the first boom structure 10, the second boom structure 20, and the third boom structure 30.

As shown in FIGS. 1 and 2, the first boom structure 10 may include a first arm body 11 formed in a box structure, and the mounting portion of the first arm frame structure 10 further includes a first arm mounted structure. a second connecting plate 2 in the middle of the arm body 11 and a third connecting plate 3 mounted on the head of the first arm body 11, wherein: the middle portion and the second connecting plate 2 are provided with corresponding third The reaming hole H3; the head and the third connecting plate 3 are provided with corresponding fourth reaming holes H4, and the third connecting plate 3 is further provided with a fifth reaming hole H5.

As shown in FIG. 3 and FIG. 4, the second boom structure 20 includes a second arm body 21 formed in a box structure, and a middle portion of the second arm body 21 is provided with a cylinder reaming hole H6 for a hinge cylinder. The head of the second arm body 21 is provided with a boom reaming H7 for articulating an adjacent boom structure, and the bottom surface of the second arm body 21 is provided with an extension from the head of the second arm body 21. The first gap to the middle.

As shown in FIGS. 5 and 6, the third boom structure 30 may include a third arm body 31 formed in a box structure, and a second notch 32 is disposed on a bottom surface of the root portion of the third arm body 31.

Here, any of the first boom structure 10, the second boom structure 20, and the third boom structure 30 may be connected to each other. Preferably, the third boom structure 30 serves as the extreme end of the boom. For example, the boom may include at least one of a first connection structure, a second connection structure, and a third connection structure.

As shown in FIG. 7 and FIG. 8 , the first connecting structure may include the first boom structure 10 , the second boom structure 20 , the first external link 40 , and the second external link 50 . And a first cylinder 12, a root of the second boom structure 20 is disposed inside the head of the first boom structure 10, and the second external link 50 is disposed at the second boom structure 20. The first outer link 40 is disposed outside the first arm structure 10 and the second outer link 50, the first arm structure 10 and the first external link 40 passes through the first pin shaft of the fourth reaming hole H4 Connected to P1, the second boom structure 20 and the second external link 50 are connected by a second pin P2 passing through the first reaming hole HI, the first external link 40 and the The two outer links 50 are hinged to each other (e.g., by a link pin P9), and the first boom structure 10 and the second boom structure 20 pass through a fifth reaming through the first boom structure 10. H5 is coupled to the third pin P3 of the second reaming H2 of the second boom structure 20, and one end of the first cylinder 12 is hinged to the fourth pin P4 passing through the third reaming hole H3. The first boom structure 10, the other end of the first cylinder 12 is hinged to the first outer link 40 (for example, via a cylinder pin P8).

As shown in FIGS. 9 and 10, the second connecting structure may include the second boom structure 20, the third boom structure 30, and the second cylinder 22, the root of the third boom structure 30. Provided inside the head of the second boom structure 20, the second boom structure 20 and the third boom structure 30 pass through the boom reaming H7 of the second boom structure 20 and a fifth pin P5 of the first reaming hole HI of the three-arm structure 30 is connected, and one end of the second cylinder 22 is hinged to the second by a sixth pin P6 passing through the cylinder reaming H6 The boom structure 20, the other end of the second cylinder 22 is hinged to the third boom structure 30 by a seventh pin P7 passing through the second reaming H2 of the third boom structure 30.

The third connecting structure (not shown) may include the first boom structure 10, the third boom structure 30, the third external link, the fourth external link, and the third cylinder. The root of the third boom structure 30 is disposed inside the head of the first boom structure 10, and the fourth external link is disposed outside the third boom structure 30, the third outer a connecting rod is disposed outside the first boom structure 10 and the fourth external link, and the first boom structure 10 and the third external link pass through the fourth hinge hole H4 An eighth pin connection, the third boom structure 30 and the fourth outer link are connected by a ninth pin shaft passing through the first reaming hole HI, the third external link and The fourth external links are hinged to each other, and the first boom structure 10 and the third boom structure 30 pass through the fifth reaming H5 and the third boom passing through the first boom structure 10. The tenth pin shaft of the second reaming hole H2 of the structure 30 is connected, and one end of the third cylinder is hinged to the first boom structure 10 by an eleventh pin shaft passing through the third reaming hole H3. , the third cylinder One end is hinged to the third outer link.

It will be appreciated that when the first boom structure 10 is used to form a joint structure with other boom structures, an additional external link is required. In addition, the present invention does not exclude the connection of the root of the first boom structure 10 to the head of the second boom structure 20, and the connection manner is similar to that of the second connection structure, which will not be described in detail herein.

The boom of the present invention may be various booms in the field of construction machinery, such as cloth arms and the like.

According to another aspect of the present invention, there is provided a pumping apparatus (e.g., a concrete pump truck), the pumping apparatus comprising a cloth arm formed as a boom of the present invention.

According to another aspect of the present invention, a method of manufacturing a boom structure is provided, the method comprising: a. providing an integrally formed arm body; b, providing a mounting portion on the arm body, the mounting portion having Connect the connection structure of other boom structures or cylinders.

The arm body is an integrally formed one piece, which does not need to be bent to form, for example, a hinge seat and a cylinder block in the prior art, and the installation of the adjacent arm frame structure and the arm frame structure and the oil cylinder can be realized by the mounting portion, thereby simplifying Manufacturing process.

Preferably, in the step b, the method may include installing a first connecting plate 1 on both sides of the root of the arm body, and providing a first reaming corresponding to each other on the root portion and the first connecting plate 1 HI , and a second reaming hole H2 is provided on the first connecting plate 1 .

In order to form the first preferred embodiment of the boom structure of the present invention (ie, the first boom structure 10), in step a, the arm body is formed into a box structure; in step b, the method further includes Mounting a second web 2 in the middle of the arm body and a third web in the head of the arm body 3, wherein: a corresponding third reaming hole H3 is disposed on the middle portion and the second connecting plate 2; a corresponding fourth reaming hole H4 is disposed on the head portion and the third connecting plate 3, and A fifth reaming hole H5 is provided on the third web 3 .

In order to form a second preferred embodiment of the boom structure of the present invention (ie, the second boom structure 20), in step a, the arm body is formed into a box structure; in step b, the method further includes A cylinder reaming H6 for a hinge cylinder is provided in a middle portion of the arm body, a boom reaming H7 for articulating an adjacent boom structure is provided at the head, and a slave bottom is provided on the bottom surface of the arm body The head extends to a first gap in the middle.

A third preferred embodiment of the boom structure of the present invention (ie, the third boom structure 30), in step a, forming the arm body into a box structure; in step b, the method further includes A second notch 32 is provided on the bottom surface of the root portion.

Additionally, preferably, the method may include providing a reinforcing connector la between the first webs 1 on both sides to increase stability at the root of the boom structure. Among them, the reinforcing connecting member la may be in various suitable forms, such as a rod member or a connecting sleeve as shown.

Further, as described above, the arm body can be integrally molded by a suitable method, and a lightweight material can be employed. To ensure proper strength of the arm body, preferably, the method includes integrally forming a rib S on the inside of the arm body. The rib S can be formed into various appropriate shapes and placed in an appropriate position as long as the arm body can be reinforced and molded. For example, as shown in FIG. 11, the arm body is a box-shaped structure, and the reinforcing ribs S may be disposed at four corners of the box-shaped structure and formed to connect adjacent two faces (connecting side faces F1 and top faces F2, and connecting sides) The bent form of F1 and bottom surface F3).

In accordance with another aspect of the invention, a method of arranging a boom is provided, the method comprising arranging a boom using the boom structure of the present invention.

Preferably, the mounting portion may include a first connecting plate 1 mounted on both sides of the root of the arm body, and the root portion and the first connecting plate 1 are provided with first reaming holes HI corresponding to each other, The first connecting plate 1 is also provided with a second reaming hole H2. Among them, the first reaming HI and the first can be selected as needed The two reaming holes H2 are used to connect or mount corresponding components. For example, the first reaming hole HI may be used to connect an external link, and the second reaming hole H2 may be used to connect the head of the upstream boom structure. Additionally, the method can include arranging the boom using at least one of the first boom structure 10, the second boom structure 20, and the third boom structure 30.

Here, any of the first boom structure 10, the second boom structure 20, and the third boom structure 30 may be connected to each other. Preferably, the third boom structure 30 serves as the extreme end of the boom. For example, the method includes forming at least one of a first connection structure, a second connection structure, and a third connection structure.

It will be appreciated that when the first boom structure 10 is used to form a joint structure with other boom structures, an additional external link is required. In addition, the method of the present invention does not exclude the formation of the connection between the root of the first boom structure 10 and the head of the second boom structure 20, forming the root of the first boom structure 10 and the other first boom structure. The connection of the head connection of 10 (the connection is similar to the second connection structure), and the way in which the root of the second boom structure 20 is connected to the head of the other second boom structure 20 (the connection is similar) The third connection structure) will not be described in detail herein.

In addition, the connecting plates may be formed in a triangular shape for ease of installation and to obtain a stable structure. Those skilled in the art can set the positions of the reaming holes of the respective plates and the mounting holes (when the fasteners are mounted) as needed. In various embodiments, the positions of the reaming holes and the mounting holes on the first connecting plate 1 can also be adjusted accordingly. Preferably, the first connecting plate 1 may be provided with three reaming holes, two of which serve as the first reaming hole HI and the second reaming hole H2, and the other serves as a mounting hole for the connecting arm body and the first connecting plate 1. To this end, the root of the arm body is also provided with two reaming holes, which respectively correspond to the first reaming hole HI and the mounting hole of the first connecting plate 1. In other words, in addition to the mounting hole, among the two reaming holes on the first connecting plate 1, the first reaming hole HI corresponding to the reaming hole of the root portion, and the other reaming hole not corresponding to the reaming hole of the root portion are Second reaming H2. Among them, an appropriate reaming hole can be selected as the first reaming hole H1 as needed. For example, when forming the second connecting structure, the root of the third boom structure 30 can adopt the structure shown in FIG. 5, that is, the reaming of the upper right side of the first connecting plate 1 as an annulus. The hole is fixed, and the reaming hole on the left side is used as the first reaming hole HI; when the third connecting structure is formed, the root of the third arm frame structure 30 can adopt the structure shown in FIG. 12, that is, the upper left side of the first connecting plate 1 The reaming hole serves as a mounting hole, and the right reaming hole serves as a first reaming hole HI.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments, and various simple modifications of the technical solutions of the present invention may be made within the scope of the technical idea of the present invention. These simple variations are within the scope of the invention.

It should be further noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not be further described in various possible combinations.

In addition, any combination of various embodiments of the invention may be made, as long as it does not deviate from the idea of the invention, and should also be regarded as the disclosure of the invention.

Claims

Rights request

1. A boom structure, characterized in that the boom structure includes an integrally formed arm body and a mounting portion provided on the arm body, and the mounting portion has a connection for connecting to other boom structures or oil cylinders. structure.

2. The boom structure according to claim 1, wherein the mounting part includes first connecting plates (1) installed on both sides of the root of the arm body, and the root and the first connecting plate The plate (1) is provided with first reaming holes (HI) corresponding to each other, and the first connecting plate (1) is also provided with a second reaming hole.

(H2).

3. The arm structure according to claim 2, wherein the arm body is formed into a box-shaped structure, and the mounting part includes a second connecting plate (2) installed in the middle of the arm body and/or The third connecting plate (3) installed on the head of the arm body, where:

The middle part and the second connecting plate (2) are provided with corresponding third reaming holes (H3);

The head and the third connecting plate (3) are provided with corresponding fourth reaming holes (H4), and the third connecting plate (3) is also provided with a fifth reaming hole (H5).

4. The boom structure according to claim 2, characterized in that the arm body is formed into a box-shaped structure, the middle part of the arm body is provided with an oil cylinder reaming hole (H6) for articulating the oil cylinder, and the head is provided with There is an arm reaming hole (H7) for hinged adjacent arm structures, and a first notch extending from the head to the middle is provided on the bottom surface of the arm body.

5. The arm structure according to claim 2, wherein the arm body is formed into a box-shaped structure, and a second notch (32) is provided on the bottom surface of the root portion.

6. The boom structure according to any one of claims 2-5, characterized in that the first connecting plates (1) on both sides are connected through reinforced connectors (la).

7. The boom structure according to any one of claims 1-5, characterized in that the inner side of the arm body is integrally formed with reinforcing ribs (S).

8. The arm structure according to any one of claims 1-5, characterized in that the arm body is made of lightweight material.

9. A boom, characterized in that the boom includes the boom structure according to any one of claims 1-8.

10. The arm according to claim 9, characterized in that, the mounting part includes first connecting plates (1) installed on both sides of the root of the arm body, the root and the first connecting plate (1) are provided with first reaming holes (HI) corresponding to each other, the first connecting plate (1) is also provided with a second reaming hole (H2), and the arm frame structure includes a first arm frame structure (10) , at least one of the second boom structure (20) and the third boom structure (30), wherein:

The first arm structure (10) includes a first arm body (11) formed into a box-shaped structure, and the mounting portion of the first arm structure (10) also includes a first arm body (11) mounted on the first arm body (11). ) and a third connecting plate (3) installed on the head of the first arm body (11), wherein: the middle part and the second connecting plate (2) A corresponding third reaming hole (H3) is provided; the head and the third connecting plate (3) are provided with a corresponding fourth reaming hole (H4), and the third connecting plate (3) is also provided with a The fifth reaming hole (H5);

The second arm structure (20) includes a second arm body (21) formed into a box-shaped structure, and an oil cylinder reaming hole (H6) for articulating the oil cylinder is provided in the middle of the second arm body (21), so second arm The head of the body (21) is provided with an arm hinge hole (H7) for hinged adjacent arm structure, and the bottom surface of the second arm body (21) is provided with a reaming hole (H7) from the second arm body (21). The head extends to the first notch in the middle;

The third arm structure (30) includes a third arm body (31) formed into a box-shaped structure, and a second notch (32) is provided on the bottom surface of the root of the third arm body (31).

11. The arm according to claim 10, characterized in that the arm includes at least one of a first connection structure, a second connection structure and a third connection structure, wherein:

The first connection structure includes the first arm structure (10), the second arm structure (20), a first external link (40), a second external link (50) and a third An oil cylinder (12), the root of the second boom structure (20) is arranged inside the head of the first boom structure (10), and the second external connecting rod (50) is arranged on the inside of the head of the first boom structure (10). Outside the second boom structure (20), the first external link (40) is provided outside the first boom structure (10) and the second external link (50), so The first boom structure (10) and the first external link (40) pass through the fourth hinge? The first pin connection (P1) of L (H4), the second boom structure (20) and the second external link (50) pass through the first reaming hole (HI) Two pins (P2) are connected, the first external link (40) and the second external link (50) are hinged to each other, the first arm structure (10) and the second arm structure (20) Through the third pin (P3) passing through the fifth reaming hole (H5) of the first boom structure (10) and the second reaming hole (H2) of the second boom structure (20) ) connection, one end of the first oil cylinder (12) is hinged to the first boom structure (10) through a fourth pin (P4) passing through the third reaming hole (H3), and the first The other end of the oil cylinder (12) is hinged to the first external connecting rod (40);

The second connection structure includes the second boom structure (20), the third boom structure (30) and a second oil cylinder (22). The root of the third boom structure (30) is arranged on The inner side of the head of the second boom structure (20), the second boom structure (20) and the third boom structure (30) The fifth pin (P5) passing through the arm reaming hole (H7) of the second arm frame structure (20) and the first reaming hole (HI) of the three-arm frame structure (30) is connected, so One end of the second oil cylinder (22) is hinged to the second boom structure (20) through a sixth pin (P6) passing through the reaming hole (H6) of the oil cylinder. The other end is hinged to the third boom structure (30) through a seventh pin (P7) that passes through the second reaming hole (H2) of the third boom structure (30);

The third connection structure includes the first boom structure (10), the third boom structure (30), a third external connecting rod, a fourth external connecting rod and a third oil cylinder. The root of the three-arm structure (30) is arranged inside the head of the first arm structure (10), and the fourth external link is arranged outside the third arm structure (30), so The third external link is arranged outside the first boom structure (10) and the fourth external link, and the first boom structure (10) and the third external link pass through The third arm structure (30) and the fourth external link are connected through the eighth pin passing through the fourth reaming hole (H4). Nine-pin connection, the third external link and the fourth external link are hinged to each other, the first arm structure (10) and the third arm structure (30) pass through the The fifth reaming hole (H5) of a boom structure (10) is connected to the tenth pin of the second reaming hole (H2) of the third boom structure (30), and one end of the third oil cylinder passes through The eleventh pin passing through the third reaming hole (H3) is hinged to the first boom structure (10), and the other end of the third oil cylinder is hinged to the third external connecting rod.

12. A pumping equipment, the pumping equipment includes a distribution arm, characterized in that the distribution arm is the arm frame according to any one of claims 9-11.

13. A method of manufacturing a boom structure, the method comprising:

a. Provide an integrated arm body;

b. A mounting part is provided on the arm body, and the mounting part has a connection structure for connecting to other arm structures or oil cylinders.

14. The method of manufacturing an arm structure according to claim 13, characterized in that, in step b, the method includes installing first connecting plates (1) on both sides of the root of the arm body, and in the First reaming holes (HI) corresponding to each other are provided on the root portion and the first connecting plate (1), and a second reaming hole (H2) is provided on the first connecting plate (1).

15. The method of manufacturing an arm structure according to claim 14, characterized in that, in step a, the arm body is formed into a box-shaped structure;

In step b, the method also includes installing a second connecting plate (2) in the middle of the arm body and installing a third connecting plate (3) at the head of the arm body, where:

A corresponding third reaming hole (H3) is provided on the middle part and the second connecting plate (2);

Corresponding fourth reaming holes (H4) are provided on the head and the third connecting plate (3), and a fifth reaming hole (H5) is provided on the third connecting plate (3).

16. The method of manufacturing an arm structure according to claim 14, characterized in that, in step a, the arm body is formed into a box-shaped structure;

In step b, the method also includes setting an oil cylinder reaming hole (H6) for articulating the oil cylinder in the middle of the arm body, and providing an arm reaming hole (H6) for articulating the adjacent arm structure at the head. H7), and a first notch extending from the head to the middle is provided on the bottom surface of the arm body.

17. The method of manufacturing an arm structure according to claim 14, characterized in that, in step a, the arm body is formed into a box-shaped structure;

In step b, the method also includes setting a second notch (32) on the bottom surface of the root.

18. The method for manufacturing a boom structure according to any one of claims 14 to 17, characterized in that the method includes arranging reinforcing connectors (1) between the first connecting plates (1) on both sides. la).

19. The method of manufacturing an arm structure according to any one of claims 13 to 17, characterized in that the method includes integrally forming reinforcing ribs (S) on the inside of the arm body.

20. The method of manufacturing an arm structure according to any one of claims 13-17, wherein in step a, the arm body is made of lightweight material.

21. A method of arranging a boom, the method comprising arranging the boom using the boom structure according to any one of claims 1-8.

22. The method of arranging an arm according to claim 21, characterized in that the installation part includes a first connecting plate (1) installed on both sides of the root of the arm body, and the root and the third A connecting plate (1) is provided with first reaming holes (HI) corresponding to each other, and the first connecting plate (1) is also provided with a second reaming hole (H2). The method includes using a first arm structure ( The boom is arranged in at least one of 10), a second boom structure (20) and a third boom structure (30), wherein:

The second arm structure (20) includes a second arm body (21) formed into a box-shaped structure, and an oil cylinder reaming hole (H6) for articulating the oil cylinder is provided in the middle of the second arm body (21), so The head of the second arm body (21) is provided with an arm reaming hole (H7) for hinged adjacent arm structure, and the bottom surface of the second arm body (21) is provided with an arm reaming hole (H7) from the second arm body. (21) The head extends to the middle of the first gap; gap;

23. The method of arranging a boom according to claim 22, wherein the method includes forming at least one of a first connection structure, a second connection structure and a third connection structure, wherein: the first connection structure The connection structure includes the first boom structure (10), the second boom structure (20), a first external connecting rod (40), a second external connecting rod (50) and a first oil cylinder (12 ), the root of the second boom structure (20) is arranged inside the head of the first boom structure (10), and the second external link (50) is arranged on the second boom structure (10). Outside the structure (20), the first external link (40) is provided outside the first arm structure (10) and the second external link (50), and the first arm The frame structure (10) and the first external link (40) are connected (P1) through the first pin passing through the fourth reaming hole (H4), and the second arm frame structure (20) and the The second external connecting rod (50) is connected by a second pin (P2) passing through the first reaming hole (HI), and the first external connecting rod (40) and the second external connecting rod ( 50) are hinged to each other, and the first boom structure (10) and the second boom structure (20) pass through the fifth hinge hole (H5) of the first boom structure (10) and the The second reaming hole (H2) of the second boom structure (20) is connected to the third pin (P3), and one end of the first oil cylinder (12) passes through the third reaming hole (H3). The four-pin shaft (P4) is hinged to the first boom structure (10), and the other end of the first oil cylinder (12) is hinged to the first external connecting rod (40);

The second connection structure includes the second boom structure (20), the third boom structure (30) and a second oil cylinder (22). The root of the third boom structure (30) is arranged on Inside the head of the second arm structure (20), the second arm structure (20) and the third arm structure (30) pass through the second arm structure (20) The arm reaming hole (H7) is connected to the fifth pin (P5) of the first reaming hole (HI) of the three-arm structure (30), and one end of the second oil cylinder (22) passes through The sixth pin (P6) passing through the reaming hole (H6) of the oil cylinder is hinged to the second arm frame structure (20), and the other end of the second oil cylinder (22) passes through the third arm. The seventh pin (P7) of the second reaming hole (H2) of the frame structure (30) is hinged to the third arm structure (30);