CN216336192U

CN216336192U - Main beam connecting structure of double-beam crane

Info

Publication number: CN216336192U
Application number: CN202122778109.6U
Authority: CN
Inventors: 徐佳斌; 汪海裕; 戴盈娜
Original assignee: Ningbo Aotu Heavy Industries Co ltd
Current assignee: Ningbo Aotu Heavy Industries Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12

Abstract

The utility model provides a main beam connecting structure of a double-beam crane, which comprises a plurality of fixing components, a first beam body and a second beam body, wherein the first beam body and the second beam body are hollow and have rectangular cross sections; one part of the outer flitch is attached to the outer wall of the end part of the first beam body, the other part of the outer flitch is attached to the outer wall of the end part of the second beam body, one part of the inner flitch is attached to the inner wall of the end part of the first beam body and corresponds to the position of the outer flitch, and the other part of the inner flitch is attached to the inner wall of the end part of the second beam body and corresponds to the position of the outer flitch; the outer flitch, the inner flitch, the first beam side wall and the second beam side wall are respectively fixed through connecting bolts, so that the first beam and the second beam are axially connected to form an integral main beam. The utility model provides a main beam connecting structure of a double-beam crane, which has the advantages of simple structure, convenience in installation and high structural strength, and ensures the stability of the main beam in use.

Description

Main beam connecting structure of double-beam crane

Technical Field

The utility model relates to the technical field of crane equipment, in particular to a main beam connecting structure of a double-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 main beam is also a very key link in a crane system, the structural strength of the main bearing part of the crane main beam is required to be ensured, wherein a bridge frame of the double-beam bridge crane generally comprises two end beams, the two main beams are mutually overlapped to form a rectangular bridge structure, the two end beams are respectively positioned at two ends of the main beams, one sides of the two main beams, which are close to each other, are respectively provided with a guide rail extending along the length direction of the main beams, and a hoist trolley is connected onto the two guide rails in a sliding manner, so that the movement of hoisted objects is realized.

Two main beams of the existing double-beam crane are generally completely spliced; however, in export transportation, the existing crane main beam is usually too long to be installed in a standard container, so that the too long main beam needs to be segmented, and therefore, the connection structure between the segmented main beams becomes a crucial part.

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 double-beam crane is provided, has a simple structure, is convenient to install, has high structural strength, and ensures the stability of the main beam in use.

In order to solve the problems, the utility model provides a main beam connecting structure of a double-beam crane, which comprises a plurality of fixing components, a first beam body and a second beam body, wherein the first beam body and the second beam body are hollow and have rectangular cross sections; one part of the outer flitch is abutted against the outer wall of the first beam end, the other part of the outer flitch is abutted against the outer wall of the second beam end, one part of the inner flitch is abutted against the inner wall of the first beam end and corresponds to the position of the outer flitch, and the other part of the inner flitch is abutted against the inner wall of the second beam end and corresponds to the position of the outer flitch; the outer flitch, the inner flitch, the first beam side wall and the second beam side wall are respectively fixed through connecting bolts, so that the first beam and the second beam are axially connected to form an integral main beam.

Compared with the prior art, the main beam connecting structure of the double-beam crane has the following advantages:

according to the main beam connecting structure of the double-beam crane, when the first beam body is axially connected with the second beam body, the outer attachment plate and the inner attachment plate are respectively attached to the outer portion and the inner portion of the side wall of the beam body at the connecting position, so that the side walls of the connecting position of the first beam body and the second beam body are connected and fixed through the three layers of plate bodies, the structural strength of the connecting position is effectively improved, and the structural stability of the whole main beam in the using process is guaranteed.

As an improvement, a plurality of concentric connecting through holes which are through along the radial direction of the main beam are formed in the left and right parts of the outer attachment plate and the inner attachment plate and the side walls of the corresponding end parts of the first beam body and the second beam body, the connecting bolts are assembled in the connecting through holes, and the end parts of the connecting bolts penetrating out of the inner attachment plate or the outer attachment plate are connected with fastening nuts; and the side walls of the first beam body and the second beam body close to one end of the fixed component are provided with operating hand holes. In the structure, the arrangement of the operating hand hole structure realizes that the connecting bolt or the fastening nut can be operated from the inner cavity of the main beam.

And in the improvement, positioning components are arranged between the left part and the right part of the outer flitch and the inner flitch and between the side walls of the first beam body and the second beam body. The positioning assembly structure arranged in the improved structure is used for limiting the positions of the connecting through holes when the beam body is butted, so that the connecting bolts can smoothly pass through the connecting through holes, the mounting is convenient, and the efficiency is improved.

And the positioning assembly comprises a positioning pin, the outer flitch, the inner flitch and the end side walls corresponding to the first beam body and the second beam body are respectively provided with a plurality of positioning pin holes which are radially communicated and concentric with the main beam, and the positioning pin is inserted and matched in the positioning pin holes. In the improved structure, when the side walls of the outer flitch, the inner flitch and the corresponding beam body are attached to each other through the simple positioning pin and the positioning pin hole structure, the position of each connecting through hole is limited, so that the connecting bolt can smoothly pass through the connecting through hole and be assembled with the fastening nut.

In a further improvement, a protective lantern ring is assembled in the operating hand hole. Among the above-mentioned improvement structure, the setting of lag ring structure makes the operation workman carry out the operation of connecting piece through the operation hand hole when, is difficult for by the lateral wall fish tail in operation hand hole, improves the security.

In a further improvement, a trolley track extending along the length direction of the main beam is arranged on the upper end face of the main beam and close to one side wall of the main beam, a first apron board and a second apron board are convexly arranged on one sides of the first beam and the second beam close to the trolley track respectively, a first reinforcing plate is arranged at the upper end of the first apron board, and the other part of the first reinforcing plate is connected to the upper end of the second apron board; the lower end of the first apron board is provided with a second reinforcing plate, and the other part of the second reinforcing plate is connected to the lower end of the second apron board. In the above-mentioned improvement structure, set up first skirtboard, second skirtboard and the first reinforcing plate that corresponds, second reinforcing plate structure on being close to the orbital roof beam body of dolly, the structural strength of the junction of further reinforcing dolly track both sides guarantees the stationarity when the dolly moves.

And in a further improvement, a plurality of connecting holes which are communicated up and down are formed in the left part and the right part of the first reinforcing plate and the second reinforcing plate, the first apron plate and the second apron plate, connecting bolts penetrate through the connecting holes, and fastening nuts are connected to the end parts of the connecting bolts penetrating out of the first apron plate or the second apron plate. In the above-mentioned improvement structure, when first reinforcing plate, second reinforcing plate and being connected of first skirtboard, second skirtboard are fixed, need not process the screw hole on first reinforcing plate or second reinforcing plate, all set up the round through-hole on each plate body, realize the connection of each plate body fixed through corresponding connecting bolt and fastening nut cooperation, processing is convenient, and the dismouting is simple.

Drawings

Fig. 1 is a partial schematic view of a main beam connection structure of a double-beam crane of the present invention.

Fig. 2 is a bottom view of 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 structural view at X in fig. 3.

Fig. 5 is an enlarged view of the structure at Y in fig. 3.

Description of reference numerals:

1-a first beam body, 1.1-a first apron board, 2-a second beam body, 2.1-a second apron board, 3-an outer flitch, 4-an inner flitch, 5-an operation hand hole, 6-a connecting through hole, 7-a positioning pin, 8-an anti-skidding lantern ring, 9-a trolley track, 10-a first reinforcing plate, 11-a second reinforcing plate and 12-a connecting hole.

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 should be noted that the terms "end portion", "outer wall", "inner, outer", "side wall", "left and right", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. 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.

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.

As shown in fig. 1, 2 and 3, the utility model provides a main beam connection structure of a double-beam crane, which includes a plurality of fixing assemblies, a first beam body 1 and a second beam body 2 which are hollow and have rectangular cross sections, specifically, the plurality of fixing assemblies are respectively arranged on four side surfaces of the first beam body 1 or the second beam body 2, and more specifically, the plurality of fixing assemblies in this embodiment include an outer attachment plate 3 and an inner attachment plate 4; wherein, one part of the outer flitch 3 is clung to the outer wall of the end part of the first beam body 1, the other part of the outer flitch 3 is clung to the outer wall of the end part of the second beam body 2, one part of the inner flitch 4 is clung to the inner wall of the end part of the first beam body 1 and corresponds to the position of the outer flitch 3, and the other part of the inner flitch 4 is clung to the inner wall of the end part of the second beam body 2 and corresponds to the position of the outer flitch 3; the two ends of the outer flitch 3 and the inner flitch 4 are respectively fixed with the side wall of the first beam body 1 and the side wall of the second beam body 2 through connecting bolts, so that the first beam body 1 and the second beam body 2 are connected along the axial direction to form an integral main beam. In the structure, the left half parts of the outer flitch 3 and the inner flitch 4 are fixedly connected with the first beam body 1, and the right half parts of the outer flitch 3 and the inner flitch 4 are fixedly connected with the second beam body 2.

In the above structure, as shown in fig. 3 and 4, the outer flitch 3 and the inner flitch 4 are fixed to the side wall of the first beam body 1 and the side wall of the second beam body 2 respectively through the connecting bolts, specifically, a plurality of concentric connecting through holes 6 which are radially communicated along the main beam are respectively arranged on the left and right parts of the outer pasting plate 3 and the inner pasting plate 4 and the corresponding end side walls of the first beam body 1 and the second beam body 2, connecting bolts are assembled in the connecting through holes 6, the concentric connecting through holes 6 mean that the connecting through holes 6 are respectively arranged on the corresponding side walls of the outer pasting plate 3, the inner pasting plate 4 and the first beam body 1 and the second beam body 2, when the outer flitch 3 and the inner flitch 4 are respectively attached to the corresponding side walls of the first beam body 1 and the second beam body 2, the connecting through holes 6 on the multilayer plate body at the same position are concentric, at this time, the connecting bolt can pass through each connecting through hole 6 along the radial direction of the main beam for connection and fixation.

Specifically, connecting bolt can wear to establish or wear to establish from inside to outside along the girder cavity, and what correspond, connecting bolt wore out interior flitch 4 or the end connection of outer flitch 3 has fastening nut to two parts are connected fixedly with first roof beam body 1, second roof beam body 2 respectively about realizing outer flitch 3, interior flitch 4. In addition, in the above connection structure, because the connection bolt or the fastening nut needs to be operated in the inner cavity of the main beam, for this reason, in this embodiment, the operation hand holes 5 are respectively arranged on the side walls of the first beam body 1 and the second beam body 2 near the fixing component, so that an operation worker can conveniently extend hands into the inner cavity of the main beam from the operation hand holes 5 to perform the operation of the connection bolt or the fastening nut. During the concrete connection in the above-mentioned structure, at first fix outer flitch 3, some of interior flitch 4 on four lateral walls at first roof beam body 1 one end through corresponding connecting bolt, fastening nut, then will be equipped with outer flitch 3, the first roof beam body 1 and the 2 axial butt joints of second roof beam body of interior flitch 4 for outer flitch 3, another part of interior flitch 4 pastes outside and inside of leaning on each lateral wall of second roof beam body 2 respectively, realize outer flitch 3 through connecting bolt, fastening nut that the connection of four lateral walls of outer flitch 4, interior flitch 4 and second roof beam body 4 is fixed at last.

More specifically, in the above structure, it is inconvenient to provide the corresponding hand holes 5 on the first beam 1 and the second beam 2, and burrs are easily generated on the side walls of the hand holes 5 currently processed by the conventional cutting method, so that there is a risk of injury when an operator extends a hand into the hand hole 5, and therefore, in this embodiment, the corresponding hand hole 5 is further provided with the protection collar 8 to ensure the safety of operation, as shown in fig. 1.

In other embodiments, the fixing of the two ends of the outer and

inner panels

3 and 4 and the side walls of the first and

second beam bodies

1 and 2 by the connecting bolts may also be: through holes are formed in the side walls of the outer attachment plate 3 and the beam body, corresponding threaded holes are formed in the inner attachment plate 4, connecting bolts sequentially penetrate through the side walls of the outer attachment plate 3 and the beam body, and finally the connecting bolts are in threaded fit with the threaded holes in the inner attachment plate 4; or the outer flitch 4 is provided with a threaded hole, the inner flitch 4 and the beam side wall are provided with a through hole, and the connecting bolt is connected from inside to outside and finally fixed on the outer flitch 3, which is not shown in the specific structure diagram of the embodiment.

In addition, in order to ensure that the positions of the connecting through holes 6 are accurately aligned when the left and right parts of the outer pasting plate 3 and the inner pasting plate 4 are pasted on the corresponding side walls of the first beam body 1 and the second beam body 2, positioning assemblies are arranged between the left and right parts of the outer pasting plate 3 and the outer pasting plate 4 and the side walls of the first beam body 1 and the second beam body 2, so as to ensure the concentricity of the connecting through holes 6 on the side walls of the outer pasting plate 3 and the inner pasting plate 4 and the corresponding beam body. Specifically, the positioning assembly in the above structure includes a positioning pin 7, a plurality of positioning pin holes penetrating in the radial direction of the main beam and concentric with each other are formed in the end side walls corresponding to the outer flitch 3, the inner flitch 4, the first beam body 1 and the second beam body 2, and the positioning pin 7 is inserted and matched in the positioning pin holes, as shown in fig. 1 and 2. Preferably, the positioning pin 7 in the structure is a spring pin, so that the insertion is convenient and the positioning is more stable. In the connection process, when the outer flitch 3 and the inner flitch 4 are respectively attached to the outer wall and the inner wall of the corresponding beam body, the positioning pin holes are firstly ensured to be positioned at the concentric positions, the corresponding positioning pins 7 are inserted into the positioning pin holes, and the outer flitch and the inner flitch 4 are ensured to be concentric with the connecting through holes 6 on the side walls of the first beam body 1 and the second beam body 2, so that the connecting bolts can be conveniently inserted into the connecting through holes 6 to be fixedly connected.

As shown in fig. 2, 3 and 5, in the above structure, a trolley track 9 extending along the length direction is provided at a position on the upper end face of the main girder and close to one of the side walls, in order to further ensure the structural strength of the main girder at a position close to the trolley track 9, a first apron plate 1.1 and a second apron plate 2.1 are respectively provided at the sides of the first girder body 1 and the second girder body 2 protruding outwards near the trolley track 9, and a first addition plate 10 is provided at the upper end of the first apron plate 1.1, and the other part of the first reinforcement plate 10 is connected to the upper end of the second apron plate 2.1; a second reinforcement plate 11 is provided at the lower end of the first apron 1.1, and another portion of the second reinforcement plate 12 is connected to the lower end of the second apron 2.1. Specifically, a plurality of through connecting holes 12 are formed in the left and right parts of the first reinforcing plate 10 and the second reinforcing plate 11 and the first apron plate 1.1 and the second apron plate 2.1, connecting bolts penetrate through the connecting holes 12, specific connecting bolts can penetrate from top to bottom, and fastening nuts are connected to the end parts, penetrating out of the second reinforcing plate 11, of the corresponding connecting bolts; or the connecting bolts are penetrated from bottom to top, and the corresponding connecting bolts penetrate out of the end part of the first reinforcing plate 10 and are connected with fastening nuts. The first reinforcing plate 10 and the second reinforcing plate 11 are connected with the first apron plate 1.1 and the second apron plate 2.1 through connecting bolts and fastening nuts in the structure more conveniently and quickly.

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

1. The utility model provides a girder connection structure of two roof beam hoist which characterized in that: the fixing device comprises a plurality of fixing components, a first beam body (1) and a second beam body (2), wherein the first beam body and the second beam body are hollow and have rectangular cross sections, and the plurality of fixing components comprise outer flitch plates (3) and inner flitch plates (4); one part of the outer flitch (3) is attached to the outer wall of the end part of the first beam body (1), and the other part of the outer flitch (3) is attached to the outer wall of the end part of the second beam body (2); one part of the inner flitch (4) is attached to the inner wall of the end part of the first beam body (1) and corresponds to the position of the outer flitch (3), and the other part of the inner flitch (4) is attached to the inner wall of the end part of the second beam body (2) and corresponds to the position of the outer flitch (3); the outer flitch (3), the inner flitch (4), the side wall of the first beam body (1) and the side wall of the second beam body (2) are fixed through connecting bolts respectively, so that the first beam body (1) and the second beam body (2) are connected in the axial direction to form an integral main beam.

2. The main beam connection structure of a double-beam crane according to claim 1, wherein: a plurality of concentric connecting through holes (6) which run through along the radial direction of the main beam are formed in the left part and the right part of the outer attachment plate (3) and the inner attachment plate (4) and the corresponding end side walls of the first beam body (1) and the second beam body (2), the connecting bolts are assembled in the connecting through holes (6), and the end parts of the connecting bolts penetrating out of the inner attachment plate (4) or the outer attachment plate (3) are connected with fastening nuts; the first beam body (1) and the second beam body (2) are close to the side wall of one end of the fixing component, and operation hand holes (5) are formed in the side wall of one end of the fixing component.

3. The main beam connection structure of a double-beam crane according to claim 2, characterized in that: and positioning components are arranged between the left part and the right part of the outer flitch (3) and the inner flitch (4) and the side walls of the first beam body (1) and the second beam body (2).

4. The main beam connection structure of a double-beam crane according to claim 3, wherein: the positioning assembly comprises a positioning pin (7), the outer flitch (3), the inner flitch (4) and the end side walls corresponding to the first beam body (1) and the second beam body (2) are provided with a plurality of edges, the main beam is radially penetrated through and concentric positioning pin holes, and the positioning pin (7) is inserted and matched in the positioning pin holes.

5. The main beam connection structure of a double-beam crane according to claim 2, characterized in that: a protective lantern ring (8) is assembled in the operating hand hole (5).

6. The main beam connection structure of a double-beam crane according to any one of claims 1 to 5, wherein: a trolley track (9) extending along the length direction of the main beam is arranged on the upper end face of the main beam and close to one side wall of the main beam, a first apron board (1.1) and a second apron board (2.1) are arranged on one sides of the first beam body (1) and the second beam body (2) close to the trolley track (9) in a protruding mode respectively, a first reinforcing plate (10) is arranged at the upper end of the first apron board (1.1), and the other part of the first reinforcing plate (10) is connected to the upper end of the second apron board (2.1); the lower end of the first apron board (1.1) is provided with a second reinforcing plate (11), and the other part of the second reinforcing plate (11) is connected to the lower end of the second apron board (2.1).

7. The main beam connection structure of a double-beam crane according to claim 6, wherein: the left and right parts of the first reinforcing plate (10) and the second reinforcing plate (11) and the first apron plate (1.1) and the second apron plate (2.1) are respectively provided with a plurality of connecting holes (12) which are vertically communicated, connecting bolts penetrate through the connecting holes (12), and fastening nuts are connected to the end parts of the connecting bolts penetrating out of the first reinforcing plate (10) or the second reinforcing plate (11).