CN113979336B - Auxiliary arm structure of crane and crane - Google Patents
Auxiliary arm structure of crane and crane Download PDFInfo
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- CN113979336B CN113979336B CN202111279801.2A CN202111279801A CN113979336B CN 113979336 B CN113979336 B CN 113979336B CN 202111279801 A CN202111279801 A CN 202111279801A CN 113979336 B CN113979336 B CN 113979336B
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- 230000008602 contraction Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/68—Jibs foldable or otherwise adjustable in configuration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
Abstract
The invention discloses a crane auxiliary arm structure and a crane, wherein the auxiliary arm structure comprises: the auxiliary arm comprises an auxiliary arm main body and an arm head; the support structure comprises two supports connected to two sides of the auxiliary arm main body, the supports comprise a first chord member and a second chord member, the two ends of the first chord member and the second chord member are respectively connected with the auxiliary arm main body and the arm head, the first chord member comprises a first rod section connected with the auxiliary arm main body and a second rod section connected with the arm head, the second chord member comprises a third rod section connected with the auxiliary arm main body and a fourth rod section connected with the arm head, and the support further comprises a web member for connecting the second rod section and the fourth rod section; the included angle of the first pole section and the second pole section and the included angle of the third pole section and the fourth pole section are adjustable, and at least one of the distance between the connecting point of the first pole section and the second pole section and the connecting point of the first pole section and the auxiliary arm main body and the distance between the connecting point of the third pole section and the fourth pole section and the connecting point of the third pole section and the auxiliary arm main body is adjustable.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a crane and a subsidiary arm structure thereof.
Background
Engineering machinery is an important component of modern construction, and in recent years, with the continuous improvement of the degree of modernization, the great height and the great performance of the working condition of the auxiliary arm of the all-terrain crane are increasingly favored by customers and markets. The auxiliary arm comprises an auxiliary arm main body with one end connected with the main arm and an arm head connected with the other end of the auxiliary arm main body, a double-support structure is further arranged on the auxiliary arm main body, one end of the support is connected with the auxiliary arm main body, and the other end of the support is connected with the arm head through a pulling plate and connected with the main arm through a rope. The smaller the included angle between the two brackets is, the higher the bearing capacity of the auxiliary arm on the amplitude-variable plane is, the larger the included angle between the two brackets is, the stronger the bearing capacity of the auxiliary arm on the revolving plane is, the more the included angle between the two brackets of the existing crane with the working condition of the auxiliary arm is kept fixed, the crane is difficult to adjust, and the crane is difficult to adapt to different working condition changes better.
Disclosure of Invention
The invention aims to provide a secondary arm structure, wherein the included angle between two supports of a support structure of the secondary arm structure is easy to adjust, and the working condition adaptability is good.
The invention discloses a crane auxiliary arm structure, which comprises:
the auxiliary arm comprises an auxiliary arm main body and an arm head;
the support structure comprises two supports connected to two sides of the auxiliary arm main body, the supports comprise a first chord member and a second chord member, two ends of the first chord member and the second chord member are respectively connected with the auxiliary arm main body and the arm head, the first chord member comprises a first pole section connected with the auxiliary arm main body and a second pole section connected with the arm head, the second chord member comprises a third pole section connected with the auxiliary arm main body and a fourth pole section connected with the arm head, and the support further comprises a web member for connecting the second pole section and the fourth pole section; the included angle between the first pole section and the second pole section and the included angle between the third pole section and the fourth pole section are adjustable, and at least one of the distance between the connection point of the first pole section and the second pole section and the connection point of the first pole section and the auxiliary arm main body and the distance between the connection point of the third pole section and the fourth pole section and the connection point of the third pole section and the auxiliary arm main body is adjustable.
In some embodiments of the present invention, in some embodiments,
the first rod section comprises a connecting rod body connected with the auxiliary arm main body and an adjusting rod body with two ends detachably connected with the connecting rod body and the second rod section respectively, and the adjusting rod body is hinged with the second rod section; and/or
The third rod section comprises a connecting rod body connected with the auxiliary arm main body, and an adjusting rod body with two ends detachably connected with the connecting rod body and the fourth rod section respectively, and the adjusting rod body is hinged with the fourth rod section.
In some embodiments of the present invention, in some embodiments,
the first rod section comprises a connecting rod body and an adjusting rod body which are connected with the auxiliary arm main body, the adjusting rod body comprises a first rod section and a second rod section which can relatively stretch out and draw back, the first rod section is connected with the auxiliary arm main body, and the second rod section is hinged with the second rod section; and/or
The third pole section includes with the connecting rod body and the regulation body of rod that the auxiliary arm main part is connected, the regulation body of rod includes the first pole section and the second pole section of telescopic relatively, first pole section with the auxiliary arm main part is connected, the second pole section with the fourth pole section articulates.
In some embodiments, the hydraulic control device further comprises a telescopic oil cylinder, one of the first rod section and the second rod section is fixedly connected with a cylinder barrel of the telescopic oil cylinder, and the other one of the first rod section and the second rod section is fixedly connected with a cylinder rod of the telescopic oil cylinder.
In some embodiments, the two brackets are symmetrically distributed on both sides of the auxiliary arm body.
The second aspect of the invention discloses a crane, comprising a main arm and a subsidiary arm structure of any one of the cranes connected to the end of the main arm.
In some embodiments, the second pole segment is connected to the arm head by a pulling plate, and the second pole segment is connected to the main arm by a rope.
According to the auxiliary arm structure provided by the invention, the brackets are provided with the first chord member and the second chord member, the first chord member and the second chord member are provided with the two chord member sections with adjustable included angles, the distance between the connecting point of the two chord member sections of at least one chord member and the connecting point of the chord member and the auxiliary arm main body is adjustable, the included angle between the two brackets can be conveniently and flexibly adjusted by adjusting the distance, the chord member is provided with the two chord member sections, the included angle between the two brackets is adjusted by changing the included angle between the two chord member sections, the included angle adjusting range of the brackets is larger, and in addition, the positions of the chord member sections connected with the auxiliary arm main body are kept fixed, so that the connection between the chord member and the auxiliary arm main body is convenient, and the universality of the connection of the bracket structure and the auxiliary arm main body is improved.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic structural view of a sub-arm structure of a crane according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a bracket of the sub-arm structure of the crane shown in FIG. 1;
FIG. 3 is a schematic diagram illustrating a process of adjusting an included angle between two brackets of a crane jib structure according to another embodiment of the present invention;
fig. 4 is a schematic structural view of an adjusting lever body of a sub-arm structure of a crane according to still another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, the sub-arm structure of the crane of the present embodiment includes a sub-arm and a bracket structure.
The auxiliary arm comprises an auxiliary arm main body 1 and an arm head 2, wherein the arm head 2 is used for installing a hoisting piece such as a hoisting pulley and the like to carry out hoisting.
As shown in fig. 1 and 3, the bracket structure includes two brackets connected to both sides of the sub-arm body 1, and as shown, includes a first bracket 31 and a second bracket 32 located at both left and right sides of the sub-arm body 1. As shown in fig. 2 and 3, the bracket includes a first chord member and a second chord member, both ends of which are connected to the sub-arm body 1 and the arm head 2, respectively, the first chord member including a first pole section 41 connected to the sub-arm body 1 and a second pole section 42 connected to the arm head 2. In the embodiment shown in fig. 1, the first pole section 41 is directly connected to the sub-arm body 1, and the second pole section 42 is connected to the arm head by a pulling plate, a rope, or the like. The second chord member comprises a third leg 51 connected to the sub-arm body 1 and a fourth leg 52 connected to the arm head 2. In the embodiment shown in fig. 1, the third leg 51 is directly connected to the sub-arm body 1 and the fourth leg 52 is connected to the arm head by means of a tie plate, rope or the like. The stent further comprises web members 6 connecting the second 42 and fourth 52 segments, the web members 6 may be one or more, such that the stent is an H-shaped or a-shaped stent.
The included angle of the first and second pole sections 41 and 42 and the included angle of the third and fourth pole sections 51 and 52 are adjustable, and at least one of the distance between the connection point of the first and second pole sections 41 and 42 and the connection point of the first and second pole sections 41 and 1 and the distance between the connection point of the third and fourth pole sections 51 and 52 and the connection point of the third and fourth pole sections 51 and 1 is adjustable.
When only one distance is adjustable, for example, when the distance between the connection point of the first and second pole sections 41 and 42 and the connection point of the first pole section 41 and the sub-arm body 1 is adjustable, by increasing or decreasing the distance between the connection point of the first and second pole sections 41 and 42 and the connection point of the first pole section 41 and the sub-arm body 1, the distance between the connection point of the third and fourth pole sections 51 and 52 and the connection point of the third and sub-arm bodies 1 is unchanged, the third pole section 51 rotates relative to the fourth pole section 52, the first pole section 41 also rotates relative to the second pole section 42, and thus the upper parts of the brackets including the second pole section 42, the fourth pole section 52 and the web member 6 integrally rotate relative to the first pole section 41 and the third pole section 51, so that the angle of both brackets can be adjusted.
When the two distances are adjustable, the included angle of the whole upper part of the bracket relative to the whole first rod section 41 and the whole third rod section 51 can be adjusted by adjusting one distance or simultaneously adjusting the two distances, so that the included angle of the two brackets can be adjusted.
The auxiliary arm structure of this embodiment is through setting up the support to have first chord member and second chord member, and set up first chord member and second chord member into two pole sections that the contained angle is adjustable, and the distance of the tie point of two pole sections of at least one chord member and the tie point of chord member and auxiliary arm main part 1 is adjustable, can conveniently adjust the contained angle between two supports in a flexible way through adjusting this distance, set up the chord member into two pole sections, when adjusting the contained angle between two supports through the contained angle change between two pole sections, because only need rotate the partial structure of support (including the upper portion of support of second pole section 42, fourth pole section 52 and web member 6 promptly, and the auxiliary arm main part is kept away from to the pivoted part, the interference of auxiliary arm main part structure to pivoted has been reduced, the contained angle of support is adjusted more conveniently and reliably, accommodation is bigger. In addition, the positions of the pole segments connected with the auxiliary arm main body 1 are kept fixed, so that the chord members and the auxiliary arm main body 1 are convenient to connect, and the universality of the connection of the bracket structure and the auxiliary arm main body 1 is improved.
In some embodiments, as shown in fig. 2 and 3, the first lever section 41 includes a connection lever 71 connected to the sub-arm body 1 and an adjustment lever 72 having both ends detachably connected to the connection lever 71 and the second lever section 42, respectively, and the adjustment lever 72 is hinged to the second lever section 42; that is, the adjustment of the distance between the connection point of the first pole section 41 and the second pole section 42 and the connection point of the first pole section 41 and the sub-arm main body 1 can be achieved by adjusting the length of the adjustment lever 72, and in the embodiment shown in fig. 3, by replacing the adjustment lever 72 with a different length, fig. 3 shows the structure after the adjustment lever 72 is detached from the first pole section 41 and the second pole section 42. In the case of angle adjustment, the adjustment rod 72 is first removed, the second rod 42 is then rotated relative to the first rod 41 and the fourth rod 52 is rotated relative to the third rod 51, and the adjustment rod 72 of different lengths is then reconnected directly to the first rod 41 and the second rod 42.
And/or the third pole section 51 includes a connection pole body 71 connected with the auxiliary arm body 1 and an adjustment pole body 72 with both ends detachably connected with the connection pole body 71 and the fourth pole section 52, respectively, and the adjustment pole body 72 is hinged with the fourth pole section 52, i.e. the adjustment of the distance between the connection point of the third pole section 5 and the fourth pole section 52 and the connection point of the third pole section 51 and the auxiliary arm body 1 can be achieved by changing the length of the adjustment pole body 72,
in some embodiments, as shown in fig. 4, the first lever section 41 includes a connecting lever 71 connected to the auxiliary arm body 1 and an adjusting lever 72, the adjusting lever 72 includes a relatively telescopic first lever section connected to the auxiliary arm body 1 and a second lever section hinged to the second lever section 42; and/or the third lever section 51 comprises a connecting lever 71 connected to the auxiliary arm body 1 and an adjusting lever 72, the adjusting lever 72 comprising a first lever section and a second lever section which are relatively telescopic, the first lever section being connected to the auxiliary arm body 1 and the second lever section being articulated to the fourth lever section 52. That is, the length adjustment of the adjustment lever 72 of the present embodiment is achieved by relative expansion and contraction between the first lever section and the second lever section
In some embodiments, the auxiliary arm structure further comprises a telescopic cylinder 8, one of the first rod section and the second rod section is fixedly connected with a cylinder barrel of the telescopic cylinder 8, and the other of the first rod section and the second rod section is fixedly connected with a cylinder rod of the telescopic cylinder 8. I.e. the relative telescopic movement between the first rod section and the second rod section is achieved by a relative telescopic drive of the cylinder barrel and the cylinder rod of the telescopic cylinder 8. In some embodiments not shown in the drawings, the relative expansion and contraction between the first pole section and the second pole section may also be driven by a motor, winch, or the like.
In some embodiments, as shown in fig. 1, the two brackets are symmetrically distributed on both sides of the auxiliary arm body 1.
Also disclosed in some embodiments is a crane comprising a main arm and a secondary arm structure of the crane attached to either of the ends of the main arm.
In some embodiments, the second pole segment 42 is connected to the arm head 2 by a pulling plate, and the second pole segment 42 is connected to the main arm by a rope.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (7)
1. The utility model provides a crane's auxiliary arm structure which characterized in that includes:
the auxiliary arm comprises an auxiliary arm main body (1) and an arm head (2);
the support structure comprises two supports connected to two sides of the auxiliary arm main body (1), each support comprises a first chord member and a second chord member, two ends of each first chord member are respectively connected with the auxiliary arm main body (1) and the arm head (2), each first chord member comprises a first rod section (41) connected with the auxiliary arm main body (1) and a second rod section (42) connected with the arm head (2), each second chord member comprises a third rod section (51) connected with the auxiliary arm main body (1) and a fourth rod section (52) connected with the arm head (2), and each support further comprises a web member (6) connected with the second rod section (42) and the fourth rod section (52); -the angle between the first pole segment (41) and the second pole segment (42) and the angle between the third pole segment (51) and the fourth pole segment (52) are adjustable, and-the distance between the connection point of the first pole segment (41) and the second pole segment (42) and the connection point of the first pole segment (41) and the auxiliary arm body (1) and the distance between the connection point of the third pole segment (51) and the fourth pole segment (52) and the connection point of the third pole segment (51) and the auxiliary arm body (1) are adjustable, wherein:
the first lever section (41) comprises a connecting lever body (71) connected with the auxiliary arm main body (1) and an adjusting lever body (72) with two ends detachably connected with the connecting lever body (71) and the second lever section (42) respectively, and the adjusting lever body (72) is hinged with the second lever section (42) so as to adjust the distance between the connecting point of the first lever section (41) and the second lever section (42) and the connecting point of the first lever section (41) and the auxiliary arm main body (1) by replacing adjusting lever bodies with different lengths; and/or
The third rod section (51) comprises a connecting rod body (71) connected with the auxiliary arm main body (1) and an adjusting rod body (72) with two ends detachably connected with the connecting rod body (71) and the fourth rod section (52), and the adjusting rod body (72) is hinged with the fourth rod section (52), so that the distance between the connecting point of the third rod section (51) and the fourth rod section (52) and the connecting point of the third rod section (51) and the auxiliary arm main body (1) can be adjusted by replacing adjusting rod bodies with different lengths.
2. The jib structure of a crane according to claim 1, characterized in that the two brackets are symmetrically distributed on both sides of the jib body (1).
3. The utility model provides a crane's auxiliary arm structure which characterized in that includes:
the auxiliary arm comprises an auxiliary arm main body (1) and an arm head (2);
the support structure comprises two supports connected to two sides of the auxiliary arm main body (1), each support comprises a first chord member and a second chord member, two ends of each first chord member are respectively connected with the auxiliary arm main body (1) and the arm head (2), each first chord member comprises a first rod section (41) connected with the auxiliary arm main body (1) and a second rod section (42) connected with the arm head (2), each second chord member comprises a third rod section (51) connected with the auxiliary arm main body (1) and a fourth rod section (52) connected with the arm head (2), and each support further comprises a web member (6) connected with the second rod section (42) and the fourth rod section (52); -the angle between the first pole segment (41) and the second pole segment (42) and the angle between the third pole segment (51) and the fourth pole segment (52) are adjustable, and-the distance between the connection point of the first pole segment (41) and the second pole segment (42) and the connection point of the first pole segment (41) and the auxiliary arm body (1) and the distance between the connection point of the third pole segment (51) and the fourth pole segment (52) and the connection point of the third pole segment (51) and the auxiliary arm body (1) are adjustable, wherein:
the first lever section (41) comprises a connecting lever body (71) connected with the auxiliary arm main body (1) and an adjusting lever body (72), the adjusting lever body (72) comprises a first lever section and a second lever section which can relatively stretch, the first lever section is connected with the auxiliary arm main body (1), and the second lever section is hinged with the second lever section (42); and/or
The third rod section (51) comprises a connecting rod body (71) and an adjusting rod body (72) which are connected with the auxiliary arm main body (1), the adjusting rod body (72) comprises a first rod section and a second rod section which can be relatively telescopic, the first rod section is connected with the auxiliary arm main body (1), and the second rod section is hinged with the fourth rod section (52).
4. A crane jib arrangement according to claim 3, further comprising a telescopic cylinder (8), one of the first and second bar sections being fixedly connected to a cylinder barrel of the telescopic cylinder (8), the other of the first and second bar sections being fixedly connected to a cylinder rod of the telescopic cylinder (8).
5. The jib structure of a crane according to claim 3 or 4, characterized in that the two brackets are symmetrically distributed on both sides of the jib body (1).
6. A crane comprising a main arm and a sub-arm structure of the crane as claimed in any one of claims 1 to 4 attached to an end of the main arm.
7. Crane according to claim 6, wherein the second pole section (42) is connected to the arm head (2) by means of a pulling plate and the second pole section (42) is connected to the main arm by means of a rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111279801.2A CN113979336B (en) | 2021-10-29 | 2021-10-29 | Auxiliary arm structure of crane and crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111279801.2A CN113979336B (en) | 2021-10-29 | 2021-10-29 | Auxiliary arm structure of crane and crane |
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| Publication Number | Publication Date |
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| CN113979336A CN113979336A (en) | 2022-01-28 |
| CN113979336B true CN113979336B (en) | 2024-04-09 |
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