Portal rigid frame beam hoisting device suitable for limited hoisting height

Abstract

The utility model discloses a portal rigid frame beam hoisting device suitable for limited hoisting height, which comprises a truck crane, a hoisting cross beam and a plurality of clamp main bodies, the plurality of clamp main bodies are sleeved on the hoisting cross beam at intervals, and two steel wire ropes of the truck crane are connected to the tops of two of the plurality of clamp main bodies. The bottoms of the plurality of clamp main bodies are used for hanging a portal rigid frame beam; a mounting hole matched with a hoisting cross beam in shape is formed in the fixture main body, hoisting parts are arranged at the two ends of the top and the two ends of the bottom of the fixture main body, a plurality of fastening assemblies are symmetrically arranged on the front side face and the rear side face of the fixture main body, and the fixture main body is fixed to the hoisting cross beam through the fastening assemblies. According to the device, the portal rigid frame beam with the limited hoisting height can be efficiently, rapidly and accurately mounted, mounting and dismounting are convenient, the mounting operation efficiency is remarkably improved, and the safety coefficient in the mounting process is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steel structure hoisting construction technical field, concretely relates to a portal frame beam hoisting device suitable for limited hoisting height. BACKGROUND

[0002] In the contemporary architectural field, the portal frame structure is widely applied in the main structure design of large-scale exhibition halls, large-span workshops and freight station buildings due to the traditionality of its structural system. The structural system mainly comprises cup mouth columns, rigid frame beams, inclined braces, column braces, purlins, tie rods, water braces and stay bars. It has the remarkable characteristics of simple stress mode, clear force transmission path, fast and efficient component manufacturing, convenient factory standardization processing and short construction period. Based on the traditional construction method of the portal frame structure, most projects tend to select reasonable hoisting machinery and hoisting process for portal frame structure hoisting. The construction process is relatively simple and is not affected by other external factors. However, for steel structure hoisting projects in limited hoisting height, engineering and technical personnel often fail to give sufficient attention, and the existing hoisting technology cannot meet the construction requirements under the condition of limited height. Therefore, designing a portal frame structure hoisting device suitable for limited hoisting height has become a hot issue of concern and research in the engineering field.

[0003] At present, for the installation of portal frame beams under the condition of limited height, the single-machine two-point hoisting and double-machine lifting construction methods are generally adopted. The traditional construction technology has defects, including a large amount of manpower, machinery and tooling material investment, and high construction cost. In addition, the problem of hoisting operation under strict height limitation has not been effectively solved, the hoisting safety factor is low, and the hoisting precision and efficiency cannot be fully guaranteed, which makes the construction process face many challenges. Especially within the flight area limit of the airport, due to the extremely strict height limitation requirement, it is necessary to strictly control the lifting height of the hoisting machinery within the specified limit height to ensure the smooth construction of the portal frame structure within the limited hoisting height and meet the requirements of safety, quality and efficiency. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a portal frame beam hoisting device suitable for limited hoisting height, which solves the problem of portal frame beam hoisting in steel structure projects with limited hoisting height.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A portal frame beam hoisting device suitable for limited hoisting height comprises a steel wire rope, a hoisting cross beam and a plurality of clamp bodies. The hoisting cross beam is sleeved with the plurality of clamp bodies at intervals. The steel wire rope connected to the sling of the automobile crane is connected to the top of two clamp bodies among the plurality of clamp bodies at both ends. The bottom of the plurality of clamp bodies is used for hoisting the portal frame beam.

[0007] The mounting hole is arranged on the clamp body and matched with the shape of the hoisting beam, the hoisting parts are arranged at the top and bottom of the clamp body, and a plurality of fastening assemblies are symmetrically arranged on the front and back sides of the clamp body.

[0008] Preferably, the clamp body and the two hoisting parts are integrally made of a steel plate.

[0009] Preferably, the hoisting hole is arranged on the hoisting part.

[0010] Preferably, the hoisting hole at the top is connected with the end of the steel wire rope, and the hoisting hole at the bottom is connected with the door type rigid frame beam through the connecting rope.

[0011] Preferably, the fastening assembly comprises a base fixed on the clamp body and an adjusting bolt adjustably mounted on the base through screw threads.

[0012] Preferably, a locking nut is arranged on the adjusting bolt.

[0013] Preferably, four fastening assemblies are arranged on the front side and the back side of the clamp body, two of which are arranged on the left side or the right side of the mounting hole and used for abutting against the web plate of the hoisting beam, and the other two are arranged on the upper side and the lower side of the mounting hole and used for abutting against the upper flange and the lower flange of the hoisting beam.

[0014] Preferably, a connecting hole is arranged on the clamp body, and a threaded hole is arranged on the base, and the base is connected to the clamp body through a bolt.

[0015] In the utility model, the clamp body is sleeved on the hoisting beam through the mounting hole arranged thereon, different numbers of clamps are selected and installed according to the span of the door type rigid frame beam during use, and the stability during hoisting is improved. The fastening assembly arranged can quickly fix the clamp body, is convenient to install and disassemble, can be repeatedly used, and the hoisting efficiency is improved.

[0016] The utility model changes the connecting position of the steel wire rope, when a construction project with limited height requirement is encountered, the steel wire rope is connected with two clamp bodies located at the outermost ends of a plurality of clamp bodies, or the clamp bodies are moved outward, so that the distance between the lifting point of the automobile crane and the hoisting beam is shortened according to requirements, the lifting height of the automobile crane is greatly reduced, the overheight condition is avoided, and the safety and controllability of the airport flight area are ensured.

[0017] The hoisting device is simple in structure and convenient in processing, mainly uses common steel materials in a steel structure processing factory as main materials, and the steel materials are not only easy to obtain, but also can be recycled and reused after use.

[0018] Compared to traditional hoisting methods, this method greatly enables the hoisting of portal frame beams under height-limited conditions and improves hoisting efficiency. In construction areas with stricter height restrictions, the hoisting point can be quickly changed by adjusting the position of the clamp body, significantly reducing the lifting height of the truck crane and ensuring that the clearance conditions of the flight area are fully maintained.

[0019] Furthermore, the device possesses high adaptability and flexibility, enabling rapid adjustments based on diverse hoisting requirements and site conditions. Overall, while ensuring construction quality, the device significantly improves construction efficiency and safety, providing an innovative solution for portal frame structure construction within limited hoisting heights, and exhibits considerable economic potential, making it suitable for widespread use in projects within height-restricted areas.

[0020] This device enables efficient and rapid precise installation of portal frame beams with limited lifting height, facilitating installation and disassembly, significantly improving installation efficiency, and increasing the safety factor during installation. The clamp body has the ability to change the lifting point, effectively reducing the height required for the truck crane during construction, thereby reducing construction difficulty. At the same time, it also ensures the overall stability of the portal frame beam during lifting, providing strong protection for construction safety. Attached Figure Description

[0021] Fig. 1 This is a schematic diagram of the overall structure of this utility model in its installation state;

[0022] Fig. 2 This is a schematic diagram of the structure of this utility model;

[0023] Fig. 3 This is a schematic diagram of the hoisting structure of this utility model;

[0024] In the diagram: 1. Fixture body; 2. Portal frame beam; 3. Lifting section; 4. Lifting hole; 5. Fastening assembly; 6. Lifting crossbeam; 7. Wire rope; 8. Connecting rope; 10. Mounting hole; 50. Base; 51. Adjusting bolt; 52. Locking nut. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figs. 1-3 The diagram shows a portal frame beam hoisting device suitable for limited hoisting height, including a wire rope 7, a hoisting beam 6 and multiple clamp bodies 1. Multiple clamp bodies 1 are spaced apart on the hoisting beam 6. The two ends of the wire rope 7, which is attached to the sling of the truck crane, are connected to the top of two clamp bodies 1. The bottom of the multiple clamp bodies 1 is used to hoist the portal frame beam 2.

[0027] The mounting hole 10 is arranged on the clamp body 1 and is matched with the shape of the hoisting beam 6. The clamp body 1 is sleeved on the hoisting beam 6 through the mounting hole, and is adjusted to a specified position.

[0028] The hoisting part 3 is arranged at the top and bottom of the clamp body 1. The clamp body 1 and the two hoisting parts 3 are integrally made of a steel plate, thereby reducing the manufacturing cost. The top of the hoisting part 3 is in a circular arc shape. In a preferred embodiment, the clamp body 1 is spliced by left and right two single bodies.

[0029] The hoisting hole 4 is arranged on the hoisting part 3. The hoisting hole 4 at the top is connected with the end of the steel wire rope 7. The hoisting hole 4 at the bottom is hoisted with the portal frame beam 2 through the connecting rope 8.

[0030] The plurality of fastening assemblies 5 are symmetrically arranged on the front and rear sides of the clamp body 1. The plurality of fastening assemblies 5 fix the clamp body 1 on the hoisting beam 6. The fastening assembly 5 includes the base 50 fixedly installed on the clamp body 1 and the adjusting bolt 51 adjustably installed on the base 50 through a thread. The locking nut 52 is arranged on the adjusting bolt 51.

[0031] In a preferred embodiment, four fastening assemblies 5 are arranged on the front and rear sides of the clamp body 1. Two fastening assemblies 5 are located on the left or right side of the mounting hole 10 and are used to abut against the web of the hoisting beam 6. The other two fastening assemblies 5 are located on the upper and lower sides of the mounting hole 10 and are used to abut against the upper and lower flanges of the hoisting beam 6, so as to fix the hoisting beam 6 from multiple directions. After the clamp body 1 is sleeved on the hoisting beam 6, the adjusting bolt 51 is abutted against the web and the upper and lower flanges of the hoisting beam 6. Then, the position of the adjusting bolt 51 is locked by using the locking nut 52, so as to fix the clamp body 1 on the hoisting beam 6.

[0032] In a preferred embodiment, the connecting hole is arranged on the clamp body 1. The threaded hole is arranged on the back of the base 50. The bolt is connected in the threaded hole through the connecting hole, so as to fix and connect the base 50 on the clamp body 1. Of course, the base 50 can also be fixedly installed on the clamp body 1 by welding.

[0033] The portal frame beam hoisting steps are as follows:

[0034] (1) In order to ensure the smooth progress and safety of the portal frame beam hoisting operation, the hoisting beam is first placed on a flat and solid site. Then, experienced operators put a plurality of clamp bodies from both ends of the beam into the beam and move to the predetermined hoisting point position.

[0035] (2) the 8 groups of adjusting bolts on both sides of each clamp body are fastened in sequence, and are closely attached to the flanges and webs of the hoisting beam, so as to prevent the clamp body from slipping due to vibration or gravity during hoisting.

[0036] (3) the automobile crane starts its hoisting arm, slowly lifts the lifting hook, then installs the steel wire rope on the lifting hook, and the operator connects the steel wire rope and the hoisting holes on the upper parts of the two clamp bodies on the beam by using the shackles, so as to ensure the safety and stability of the whole hoisting process.

[0037] (4) the portal frame beam is in place, then 6 groups of shackles and connecting ropes are prepared to be connected with the 6 hoisting holes on the lower part of the clamp body, the lower section of the steel wire rope is connected with the lifting lug of the portal frame beam through the shackles, in order to ensure the safety of hoisting, all the shackles must be fastened in place, that is, the connection and installation of the hoisting device and the portal frame beam are completed, which lays a foundation for the subsequent hoisting operation.

[0038] (5) after the above preliminary preparation work is completed, the automobile crane lifts the portal frame beam to the designated position, and the construction personnel need to closely combine to install the portal frame structure. After the portal frame beam is installed in place and all the connecting nodes are firm and correct, the 6 groups of shackles and the lifting lug of the portal frame beam are separated, that is, the portal frame beam hoisting is completed.

[0039] During hoisting, the steel wire rope is connected with the two clamp bodies located at the outermost ends of the multiple clamp bodies, or the clamp bodies are moved outward, so as to shorten the distance between the lifting point of the automobile crane and the hoisting beam according to the requirements, greatly reduce the lifting height of the automobile crane, avoid the overheight situation, and ensure safety and controllability.

[0040] The above embodiments are only a number of descriptions of the concept and implementation of the present application, and do not limit the present application. Under the concept of the present application, the technical solutions without substantial transformation are still within the protection scope.

Claims

1. A portal frame beam lifting device suitable for limited lifting height, characterized in that: Including steel wire rope (7), hoisting beam (6) and multiple clamp bodies (1), multiple clamp bodies (1) are sleeved on hoisting beam (6) at intervals, and the two ends of the steel wire rope (7) hung on the cable of the automobile crane are connected to the top of two clamp bodies (1) in multiple clamp bodies (1), and the bottom of multiple clamp bodies (1) is used for hoisting portal frame beam (2); The mounting hole (10) matched with the shape of the hoisting beam (6) is arranged on the clamp body (1), the hoisting part (3) is arranged at the top and bottom of the clamp body (1), multiple fastening assemblies (5) are arranged on the front and rear sides of the clamp body (1) symmetrically, and the clamp body (1) is fixed on the hoisting beam (6) by multiple fastening assemblies (5).

2. The portal frame beam lifting device suitable for limited lifting height according to claim 1, characterized in that: The clamp body (1) and the two hoisting parts (3) are integrally made of steel plate.

3. The portal frame beam lifting arrangement suitable for limited lifting height according to claim 2, characterized in that: The hoisting hole (4) is arranged on the hoisting part (3).

4. The portal frame beam lifting arrangement suitable for limited lifting height according to claim 3, characterized in that: The hoisting hole (4) at the top is connected with the end of the steel wire rope (7); the hoisting hole (4) at the bottom hoists the portal frame beam (2) through the connecting rope (8).

5. The portal frame beam lifting device suitable for limited lifting height according to claim 1 or 4, characterized in that: The fastening assembly (5) comprises a base (50) fixed on the clamp body (1) and an adjusting bolt (51) adjustably installed on the base (50) through threads.

6. The portal frame beam lifting arrangement suitable for limited lifting height according to claim 5, characterized in that: A locking nut (52) is arranged on the adjusting bolt (51).

7. A portal gantry beam lifting arrangement suitable for use with limited lifting heights as claimed in claim 6, characterised in that: Four fastening assemblies (5) are arranged on the front and rear sides of the clamp body (1), two fastening assemblies (5) are arranged on the left or right side of the mounting hole (10) and used for abutting against the web plate of the hoisting beam (6), and the other two fastening assemblies (5) are arranged on the upper and lower sides of the mounting hole (10) and used for abutting against the upper and lower wing plates of the hoisting beam (6).

8. The portal frame beam lifting arrangement suitable for limited lifting height according to claim 7, characterized in that: A connecting hole is arranged on the clamp body (1), and a threaded hole is arranged on the base (50), so that the base (50) is connected to the clamp body (1) through a bolt.

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