CN216764075U - Main beam connecting structure of single-beam crane - Google Patents
Main beam connecting structure of single-beam crane Download PDFInfo
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- CN216764075U CN216764075U CN202122784635.3U CN202122784635U CN216764075U CN 216764075 U CN216764075 U CN 216764075U CN 202122784635 U CN202122784635 U CN 202122784635U CN 216764075 U CN216764075 U CN 216764075U
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Abstract
The utility model provides a main beam connecting structure of a single-beam crane, which comprises a hollow first beam body and a hollow second beam body, wherein one end of the first beam body is provided with a first flange plate, and the first flange plate is provided with a plurality of first connecting parts distributed along the circumferential direction; a second flange plate is arranged at one end of the second beam body, a plurality of second connecting parts distributed along the circumferential direction are arranged on the second flange plate, and when the first flange plate is abutted against the second flange plate, the plurality of first connecting parts and the plurality of second connecting parts are in one-to-one correspondence and are detachably connected, so that the first beam body is axially connected with the second beam body to form a hollow main beam; and a plurality of positioning assemblies are arranged between the first flange plate and the second flange plate. The utility model provides a main beam connecting structure of a single-beam crane, which is simple in structure and convenient to install, and can realize position positioning between end faces in the installation process and ensure the centering property after connection.
Description
Technical Field
The utility model relates to the technical field of crane equipment, in particular to a main beam connecting structure of a single-beam crane.
Background
The crane is a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range, the existing crane is generally arranged at a position with a higher height and can move, and when the crane moves, the existing crane has a limiting function and avoids the crane from moving beyond a stroke.
The crane girder is also a very critical link in a crane system, and the structural strength of the crane girder as a main bearing part needs to be ensured, so that the conventional girder is generally complete without splicing; however, as the use environment changes, the length of the existing crane main beam is longer and longer, and the complete main beam cannot be transported due to the limitation of the size of the container in the export transportation process, so that the main beam which is too long needs to be segmented, and the connection structure between the segmented main beams becomes a crucial part, and the connection structure in the prior art is complicated and has poor centering performance during installation.
SUMMERY OF THE UTILITY MODEL
The utility model solves the problem that in order to overcome the defects in the prior art, the main beam connecting structure of the single-beam crane is provided, the structure is simple, the installation is convenient, the position positioning between the end surfaces can be realized in the installation process, and the centering property after the connection is ensured.
In order to solve the problems, the utility model provides a main beam connecting structure of a single-beam crane, which comprises a hollow first beam body and a hollow second beam body, wherein one end of the first beam body is provided with a first flange plate, and the first flange plate is provided with a plurality of first connecting parts distributed along the circumferential direction; a second flange plate is arranged at one end of the second beam body, a plurality of second connecting parts distributed along the circumferential direction are arranged on the second flange plate, and when the first flange plate is abutted against the second flange plate, the plurality of first connecting parts and the plurality of second connecting parts are in one-to-one correspondence and are detachably connected, so that the first beam body and the second beam body are axially connected to form a hollow main beam; and a plurality of positioning assemblies are arranged between the first flange plate and the second flange plate.
Compared with the prior art, the main beam connecting structure of the single-beam crane has the following advantages:
in the main beam connecting structure of the single-beam crane, the beam body ends to be connected at the two ends are respectively connected with the corresponding flange plates, the respective flange plates are provided with the corresponding connecting parts, and more importantly, a positioning assembly is arranged between the two butted flange plates and used for limiting the position during butt joint, so that the accurate alignment of the positions of the connecting parts is ensured after the two flange plates are butted, the operation is easier and quicker, and the dismounting efficiency is improved.
As an improvement, the area of the first flange plate is larger than the cross-sectional area of the first beam body, and the first connecting part is arranged on the part, protruding outwards from the outer wall of the first beam body, of the first flange plate; the area of the second flange plate is larger than the cross sectional area of the second beam body, and the second connecting portion is arranged on the portion, protruding out of the outer wall of the second beam body, of the second flange plate. Among the above-mentioned improvement structure, with corresponding first connecting portion, second connecting portion setting in the position of circumference evagination in the girder lateral wall, make things convenient for the dismouting operation more.
And the positioning assembly comprises positioning pins and positioning pin holes, the positioning pins are convexly connected to the end face of the first flange plate close to one side of the second flange plate, and the positioning pin holes are formed in the second flange plate. In the above-mentioned improved structure, can realize through simple locating pin and locating pin hole structure that first flange board is injectd with the position of second flange board when joining in marriage the dress to guarantee the accurate counterpoint of first connecting portion and second connecting portion position, improve the installation effectiveness.
In a further improvement, avoidance notches for the hoist trolley to pass through are formed in the lower ends of the first flange plate and the second flange plate and located on two sides of the main beam; the first connecting portion of the lower end of the first flange plate and the second connecting portion of the lower end of the second flange plate are located in the inner cavity of the main beam, and operation holes are formed in the side wall of one end, close to the first flange plate, of the first beam body and the side wall of one end, close to the second flange plate, of the second beam body.
In another improvement, an annular sleeve is inserted into the operating hole. In the above-mentioned improvement structure, at the corresponding annular sleeve of inside cartridge of handle hole for when the operation workman carries out first connecting portion, second connecting portion through the handle hole and connects, be difficult for by the lateral wall fish tail of handle hole, improve the security.
As a structural form, the first connecting part is a first connecting hole penetrating through the first flange plate, and the second connecting part is a second connecting hole penetrating through the second flange plate; and a connecting bolt penetrates through the first connecting hole, and one end of the connecting bolt penetrating out of the second connecting hole is fixedly connected through a fastening nut.
As another structure, the first connection portion is a first connection hole penetrating through the first flange plate, a connection bolt penetrates through the first connection hole, the second connection portion is a threaded hole penetrating through the second flange plate, and the connection bolt is connected in the threaded hole.
And in the improvement, reinforcing rib plates are arranged at the joint of the first flange plate and the first beam body and the joint of the second flange plate and the second beam body. In the above-mentioned improvement structure, the joint strength between flange board and the roof beam body has effectively been promoted to the deep floor that increases to guarantee the structural strength of whole girder.
Drawings
Fig. 1 is a partial schematic view of a main beam connection structure of a single-beam crane of the present invention.
Fig. 2 is an enlarged structural view at X in fig. 1.
Fig. 3 is a sectional view taken along line a-a in fig. 1. (state without attaching connecting bolt and fastening nut)
Fig. 4 is an enlarged view of the structure at Y in fig. 3.
Fig. 5 is a sectional view taken along line B-B in fig. 3.
Description of reference numerals:
1-a first beam body, 2-a second beam body, 3-a first flange plate, 4-a connecting bolt, 5-a second flange plate, 6-a fastening nut, 7-a positioning pin, 8-a positioning pin hole, 9-an avoiding notch, 10-an operating hole, 11-an annular sleeve and 12-a reinforcing rib plate.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, the terms "first" and "second" are used for convenience of description and distinction, and have no specific meaning.
The first embodiment is as follows:
as shown in fig. 1, 2 and 3, the utility model provides a main beam connection structure of a single-beam crane, which comprises a hollow first beam body 1 and a hollow second beam body 2, and specifically, the first beam body 1 and the second beam body 2 both adopt a rectangular hollow tube structure formed by welding four steel plates. Specifically, a first flange plate 3 is arranged at one end of the first beam body 1, and a plurality of first connecting parts distributed along the circumferential direction are arranged on the first flange plate 3; a second flange plate 5 is arranged at one end of the second beam body 2, a plurality of second connecting parts distributed along the circumferential direction are arranged on the second flange plate 5, when in connection, the first flange plate 3 abuts against the second flange plate 5, and the plurality of first connecting parts and the plurality of second connecting parts are in one-to-one correspondence and are detachably connected, so that the first beam body 1 and the second beam body 2 are axially connected to form a hollow main beam; and in order to ensure that each first connecting part can be accurately connected with the corresponding position of the second connecting part when the first flange plate 3 and the second flange plate 5 are oppositely assembled, a plurality of positioning components are arranged between the first flange plate 3 and the second flange plate 5.
Specifically, the positioning assembly in the above structure includes a positioning pin 7 and a positioning pin hole 8, the positioning pin 7 is convexly connected to the end surface of the first flange plate 3 near the second flange plate 5, and correspondingly, the positioning pin hole 8 is formed in the second flange plate 5, as shown in fig. 3 and 5; or the positions of the positioning pin 7 and the positioning pin hole are arranged in an interchangeable way, namely, the positioning pin 7 is convexly connected to the end surface of the second flange plate 5 close to the first flange plate 3; the locating pin holes 8 are formed in the first flange plate 3, when the first beam body 1 is connected with the second beam body 2, the first flange plate 3 is attached to the second flange plate 5 in parallel, the locating pins are matched in the corresponding locating pin holes 8 in a plug-in mounting mode, the first flange plate 3 and the second flange plate 5 are located, and therefore the first connecting portions 4 are aligned to the second connecting portions 6, and connection is facilitated. Preferably, the positioning pin 7 in the structure is a spring pin, so that the plug-in mounting is convenient and the positioning is more stable.
More specifically, the first flange plate 3 is a rectangular structure, the area of the first flange plate 3 is larger than the cross-sectional area of the first beam body 1, and the first connecting part is arranged on the outer wall part of the first flange plate 3 protruding out of the first beam body 1; similarly, the area of the second flange plate 5 is larger than the cross-sectional area of the second beam body 2, and the second connecting part is arranged on the part, protruding out of the outer wall of the second beam body 2, of the second flange plate 5; thus arranged, the connection operation between the first connection portion 4 and the second connection portion 6 is facilitated. Similarly, the positioning pins 7 and the positioning pin holes 8 are also arranged at the positions where the first flange plate 3 and the second flange plate 5 protrude out of the side wall of the corresponding beam body.
In this embodiment, as shown in fig. 2, the first connecting portion is a first connecting hole penetrating through the first flange plate 3, and the second connecting portion is a second connecting hole penetrating through the second flange plate 5; and wear to be equipped with connecting bolt 4 in the first connecting hole, connecting bolt 4 wears out the one end of second connecting hole and passes through fastening nut 6 to be connected fixedly to realize first flange board 3 and the dismantlement of second flange board 5 and be connected. The specific positions of the connecting bolt 4 and the fastening nut 6 in the structure can be interchanged, namely, the connecting bolt 4 penetrates into one end of the second connecting hole and penetrates out towards the first connecting hole, and the fastening nut 6 is connected to one end, penetrating out of one end of the first connecting hole, of the connecting bolt 4.
In addition, in the practical application process, the hoist trolleys need to be installed on two sides of the lower end of the main beam, and the hoist trolleys need to move back and forth along the main beam in the use process, so that interference cannot be generated on the sliding of the hoist trolleys at the connection positions of the first beam body 1 and the second beam body 2, and avoidance notches 9 for the hoist trolleys to pass through are arranged at the lower ends of the first flange plate 3 and the second flange plate 5 and on two sides of the main beam, so that a space is reserved for the sliding of the hoist trolleys.
On the other hand, in order to ensure the connection strength between the first flange plate 3 and the second flange plate 5, that is, to ensure the uniform stress of the connection position, and avoid all the connection portions from being disposed outside the cross section of the main beam, in this embodiment, the first connection portion 4 at the lower end of the first flange plate 3 and the second connection portion 6 at the lower end of the second flange plate 5 are both located in the inner cavity portion of the main beam, as shown in fig. 3; in addition, when first connecting portion and second connecting portion set up in the girder inner chamber, for convenient operation, all be equipped with handle hole 10 on the lateral wall of the first roof beam body 1 nearly first flange board 3 one end and on the lateral wall of the second roof beam body 2 nearly second flange board 5 one end, during the dismouting, operative employee can penetrate handle hole 10 with corresponding instrument and carry out the connection of first flange board 3 and second flange board 5 lower extreme position and fix.
More specifically, in the prior art, it is inconvenient to form the corresponding operation holes 10 in the first beam body 1 and the second beam body 2, burrs are easily generated on the side walls of the operation holes 10 formed by the conventional steel plate cutting method, and there is a risk of injury when an operator extends a hand into the operation hole 10.
On the other hand, the joint of the first flange plate 3 and the first beam body 1 and the joint of the second flange plate 5 and the second beam body 2 are provided with reinforcing rib plates 12 to ensure the strength of the connecting structure of the first flange plate 3 and the first beam body 1 and the strength of the connecting structure of the second flange plate 5 and the second beam body 2. Specifically, the first flange plate 3, the first beam body 1 and the reinforcing rib plates 12 are fixed in a welding mode, and the second flange plate 5, the second beam body 2 and the reinforcing rib plates 12 are fixedly connected in a welding mode.
The second embodiment:
the structure of this embodiment is basically the same as that of the first embodiment, the difference in displacement is that the first connecting portion and the second connecting portion are different in connection mode, in this specific embodiment, the first connecting portion is a first connecting hole penetrating through the first flange plate 3, the first connecting hole is internally penetrated by the connecting bolt 4, the second connecting portion is a threaded hole penetrating through the second flange plate 5, and the connecting bolt 4 is connected in the threaded hole, the specific structure of this embodiment is simple, and the drawing is not specifically shown.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (8)
1. The utility model provides a girder connection structure of monospar hoist, includes the first roof beam body (1) and the second roof beam body (2) of hollow, its characterized in that: one end of the first beam body (1) is provided with a first flange plate (3), and the first flange plate (3) is provided with a plurality of first connecting parts distributed along the circumferential direction; a second flange plate (5) is arranged at one end of the second beam body (2), a plurality of second connecting parts distributed along the circumferential direction are arranged on the second flange plate (5), and when the first flange plate (3) abuts against the second flange plate (5), the plurality of first connecting parts and the plurality of second connecting parts are in one-to-one correspondence and are detachably connected, so that the first beam body (1) and the second beam body (2) are axially connected to form a hollow main beam; a plurality of positioning assemblies are arranged between the first flange plate (3) and the second flange plate (5).
2. The main beam connection structure of a single-beam crane according to claim 1, characterized in that: the area of the first flange plate (3) is larger than the cross sectional area of the first beam body (1), and the first connecting part is arranged on the part, protruding out of the outer wall of the first beam body (1), of the first flange plate (3); the area of the second flange plate (5) is larger than the cross sectional area of the second beam body (2), and the second connecting portion is arranged on the outer wall portion, protruding out of the second beam body (2), of the second flange plate (5).
3. The main beam connecting structure of the single-beam crane according to claim 2, wherein the positioning assembly comprises a positioning pin (7) and a positioning pin hole (8), the positioning pin (7) is convexly connected to the end surface of the first flange plate (3) close to the second flange plate (5), and the positioning pin hole (8) is formed in the second flange plate (5).
4. The main beam connection structure of a single-beam crane according to claim 2, characterized in that: avoidance notches (9) for the hoist trolley to pass through are formed in the lower ends of the first flange plate (3) and the second flange plate (5) and located on two sides of the main beam; the first connecting portion of first flange board (3) lower extreme and the second connecting portion of second flange board (5) lower extreme all are located the inner chamber part of girder, just all be equipped with handle hole (10) on the lateral wall of the nearly first flange board (3) one end of first roof beam body (1) and the nearly second flange board (5) one end of second roof beam body (2).
5. The main beam connection structure of a single-beam crane according to claim 4, characterized in that: an annular sleeve (11) is inserted in the operation hole (10).
6. The main beam connection structure of a single beam crane according to claim 1, wherein: the first connecting part is a first connecting hole penetrating through the first flange plate (3), and the second connecting part is a second connecting hole penetrating through the second flange plate (5); and a connecting bolt (4) penetrates through the first connecting hole, and one end of the connecting bolt (4) penetrating out of the second connecting hole is fixedly connected through a fastening nut (6).
7. The main beam connection structure of a single-beam crane according to claim 1, characterized in that: the first connecting portion are first connecting holes penetrating through the first flange plate (3), connecting bolts (4) penetrate through the first connecting holes, the second connecting portion are threaded holes penetrating through the second flange plate (5), and the connecting bolts (4) are connected in the threaded holes.
8. The main beam connection structure of a single-beam crane according to any one of claims 1 to 7, characterized in that: and reinforcing rib plates (12) are arranged at the joint of the first flange plate (3) and the first beam body (1) and the joint of the second flange plate (5) and the second beam body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122784635.3U CN216764075U (en) | 2021-11-12 | 2021-11-12 | Main beam connecting structure of single-beam crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122784635.3U CN216764075U (en) | 2021-11-12 | 2021-11-12 | Main beam connecting structure of single-beam crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216764075U true CN216764075U (en) | 2022-06-17 |
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ID=81962997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122784635.3U Active CN216764075U (en) | 2021-11-12 | 2021-11-12 | Main beam connecting structure of single-beam crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216764075U (en) |
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2021
- 2021-11-12 CN CN202122784635.3U patent/CN216764075U/en active Active
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