Connecting structure for lifting appliance of girder erection crane

Abstract

The utility model relates to the technical field of bridging construction, in particular to a connecting structure for a lifting appliance of a girder erection crane, which comprises a bridge crane main body, the bridge crane main body is connected with a lifting appliance body through a lifting rope, the lifting appliance body comprises a main girder body, a connecting piece is arranged at the top of the main girder body, and the connecting piece is connected with the lifting appliance body. The surface of the connecting piece is movably connected with a lifting rope, sling mounting parts are arranged at the two ends of the top of the main beam body correspondingly, slings are arranged on the inner sides of the two sling mounting parts, lifting hoops are arranged at the bottom ends of the two slings correspondingly, and quick connecting structures are arranged outside the lifting hoops. The quick connecting structure comprises a main body arranged on the surface of the hanging hoop, the main body is connected with the hanging hoop through a flange, a wheel disc is arranged on the side, away from the hanging hoop, of the main body, a screw rod is fixedly connected to the side, close to the main body, of the wheel disc, the other end of the screw rod extends into the main body, and the lifting appliance and the lifting lug can be quickly connected.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge erection construction, in particular to a connection structure for a beam erection crane sling. Background Art

[0002] At present, in the construction of large-span steel bridges, the assembly and pre-assembly of steel beam segments are usually completed in the factory, and then the beam segments are transported to the bridge site by transportation equipment such as floating cranes, and assembled by bridge cranes. Therefore, bridge cranes are key equipment for the erection of large-scale cross-river and cross-river steel bridges, and hoists are key load-bearing components; existing hoists cannot quickly connect with the lifting ears of steel beams, and require the cooperation of multiple people, which increases the trouble of work. Utility Model Content

[0003] The purpose of the utility model is to provide a connection structure for a beam erecting crane sling to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A connection structure for a beam erection crane sling, comprising a bridge crane body, the bridge crane body being connected to a sling body through a sling rope, the sling body comprising a main beam body, a connecting piece being arranged on the top of the main beam body, a surface of the connecting piece being movably connected to the sling rope, sling cable mounting parts being arranged at both ends of the top of the main beam body, sling cables being arranged on the inner sides of the two sling cable mounting parts, hoists being arranged at the bottom ends of the two sling cables, and a quick connection structure being arranged on the outside of the hoist rope;

[0006] The quick connection structure includes a main body arranged on the surface of the hoop, the main body and the hoop are connected by a flange, a wheel disc is arranged on the side of the main body away from the hoop, a screw is fixedly connected to the side of the wheel disc close to the main body, the other end of the screw extends to the inside of the main body, a threaded barrel is sleeved on the outside of the screw, the inner wall of the threaded barrel is threadedly connected to the outer wall of the screw, the other end of the threaded barrel extends to the outside of the main body, a slot is opened in the middle of the hoop on one side, a top plate is fixedly connected to the end of the threaded barrel away from the screw, and the top plate extends to the inside of the slot.

[0007] As a preferred solution of the utility model, the bridge crane body includes a lower main beam, and a rear pull rod is provided on one side of the top of the lower main beam.

[0008] As a preferred solution of the utility model, the rear pull rod is arranged obliquely, and one end of the rear pull rod away from the bridge crane body is fixedly connected to the upper main beam.

[0009] As a preferred solution of the utility model, a column is arranged between the lower main beam and the rear pull rod, a front support rod is arranged at one end of the lower main beam away from the rear pull rod, and the front support rod is arranged parallel to the rear pull rod.

[0010] As a preferred solution of the utility model, one end of the front support rod away from the lower main beam is fixedly connected to one end of the upper main beam away from the rear pull rod, and a front end truss is provided at one end of the top of the upper main beam away from the rear pull rod.

[0011] As a preferred solution of the utility model, a walking part is arranged below the lower main beam.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the sling body and the lifting lugs can be quickly connected through the quick connection structure, which can be operated by a single person. The screw rod is driven to rotate by rotating the wheel, so that the threaded tube pushes the top plate to move, so that the top plate is clamped between the lifting lugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the main body of the utility model sling;

[0017] Figure 4 It is a structural schematic diagram of the quick connection structure of the utility model.

[0018] In the figure: 1. bridge crane body; 101. lower main beam; 102. rear pull rod; 103. column; 104. upper main beam; 105. front truss; 106. front support rod; 2. walking part; 3. lifting rope; 4. lifting device body; 401. main beam body; 402. connecting part; 403. lifting cable installation part; 404. lifting cable; 405. lifting hoop; 5. quick connection structure; 501. main body; 502. pulley; 503. screw; 504. threaded barrel; 505. slot; 506. top plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] For examples, see Figure 1 , Figure 3 , Figure 4 , the utility model provides a technical solution:

[0022] A connection structure for a beam erecting crane sling, comprising a bridge crane body 1, the bridge crane body 1 is connected to a sling body 4 through a sling rope 3, the sling body 4 comprises a main beam body 401, a connecting piece 402 is arranged on the top of the main beam body 401, the surface of the connecting piece 402 is movably connected to the sling rope 3, both ends of the top of the main beam body 401 are provided with sling installation parts 403, slings 404 are arranged on the inner sides of the two sling installation parts 403, the bottom ends of the two slings 404 are provided with hoop 405, the outside of the hoop 405 is provided with a quick connection structure 5, the quick connection structure 5 comprises a main body 501 arranged on the surface of the hoop 405, the main body 50 1 is connected to the hoop 405 through a flange, a wheel disc 502 is provided on the side of the main body 501 away from the hoop 405, a screw rod 503 is fixedly connected to the side of the wheel disc 502 close to the main body 501, the other end of the screw rod 503 extends to the inside of the main body 501, a threaded barrel 504 is sleeved on the outside of the screw rod 503, the inner wall of the threaded barrel 504 is threadedly connected to the outer wall of the screw rod 503, the other end of the threaded barrel 504 extends to the outside of the main body 501, a slot 505 is provided in the middle of the hoop 405 on one side, a top plate 506 is fixedly connected to the end of the threaded barrel 504 away from the screw rod 503, and the top plate 506 extends to the inside of the slot 505.

[0023] like Figure 1 , Figure 2 As shown, the bridge crane body 1 includes a lower main beam 101, a rear tie rod 102 is arranged on one side of the top of the lower main beam 101, the rear tie rod 102 is inclined, and the end of the rear tie rod 102 away from the bridge crane body 1 is fixedly connected to the upper main beam 104, a column 103 is arranged between the lower main beam 101 and the rear tie rod 102, a front strut 106 is arranged at the end of the lower main beam 101 away from the rear tie rod 102, the front strut 106 is arranged parallel to the rear tie rod 102, the end of the front strut 106 away from the lower main beam 101 is fixedly connected to the end of the upper main beam 104 away from the rear tie rod 102, a front end truss 105 is arranged at the end of the top of the upper main beam 104 away from the rear tie rod 102, and a walking part 2 is arranged below the lower main beam 101.

[0024] The working process of the utility model is as follows: when in use, all the sling bodies 4 on the bridge crane body 1 are lowered onto the steel bridge under construction, and when all the sling bodies 4 fall onto the bridge deck, the preset length of the sling rope 3 is continued to be lowered, and the walking part 2 moves. At this time, the sling rope 3 connected to the sling body 4 will be gradually tightened. When the sling rope 3 is fully tightened, the sling rope 3 is in an inclined state, and the inclined sling rope 3 will pull the sling body 4 to move with the movement of the walking part 2, and the lifting ear is placed between the hoisting hoop 405, and the screw rod 503 is driven to rotate by the wheel plate 502, so that the threaded barrel 504 on the surface of the screw rod 503 pushes the top plate 506 to move to the inside of the lifting ear, completing the connection between the sling body 4 and the lifting ear, so that the sling and the lifting ear can be quickly connected, and it can be done by one person.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for a beam erecting crane sling, comprising a bridge crane body (1), characterized in that: The bridge crane body (1) is connected to a sling body (4) via a sling rope (3), the sling body (4) comprising a main beam (401), a connecting piece (402) being arranged at the top of the main beam (401), a surface of the connecting piece (402) being movably connected to the sling rope (3), sling cable mounting parts (403) being arranged at both ends of the top of the main beam (401), sling cables (404) being arranged on the inner sides of the two sling cable mounting parts (403), hoists (405) being arranged at the bottom ends of the two sling cables (404), and a quick connection structure (5) being arranged on the outside of the hoist (405); The quick connection structure (5) comprises a main body (501) arranged on the surface of a hoop (405), the main body (501) and the hoop (405) being connected via a flange, a wheel disc (502) being arranged on a side of the main body (501) away from the hoop (405), a screw rod (503) being fixedly connected to a side of the wheel disc (502) close to the main body (501), the other end of the screw rod (503) extending into the interior of the main body (501), and the screw rod (503) A threaded barrel (504) is sleeved on the outside of the main body (501), the inner wall of the threaded barrel (504) is threadedly connected to the outer wall of the screw rod (503), the other end of the threaded barrel (504) extends to the outside of the main body (501), a slot (505) is opened in the middle of the hoop (405) on one side, and a top plate (506) is fixedly connected to one end of the threaded barrel (504) away from the screw rod (503), and the top plate (506) extends to the inside of the slot (505).

2. A connection structure for a beam erecting crane sling according to claim 1, characterized in that: The bridge crane body (1) comprises a lower main beam (101), and a rear tie rod (102) is provided on one side of the top of the lower main beam (101).

3. A connection structure for a beam erecting crane sling according to claim 2, characterized in that: The rear tie rod (102) is arranged obliquely, and one end of the rear tie rod (102) away from the bridge crane body (1) is fixedly connected to an upper main beam (104).

4. A connection structure for a beam erecting crane sling according to claim 2, characterized in that: A column (103) is provided between the lower main beam (101) and the rear pull rod (102); a front support rod (106) is provided at one end of the lower main beam (101) away from the rear pull rod (102); and the front support rod (106) is arranged parallel to the rear pull rod (102).

5. A connection structure for a beam erecting crane sling according to claim 4, characterized in that: One end of the front support rod (106) away from the lower main beam (101) is fixedly connected to one end of the upper main beam (104) away from the rear tie rod (102), and a front end truss (105) is provided at one end of the top of the upper main beam (104) away from the rear tie rod (102).

6. A connection structure for a beam erecting crane sling according to claim 2, characterized in that: A walking part (2) is arranged below the lower main beam (101).

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