A steel beam hoisting apparatus

Abstract

The utility model provides a kind of steel beam hoisting equipment.The steel beam hoisting equipment includes first winch, first steel wire that revolves on the first winch, second winch located in the side of the first winch, and second steel wire that revolves on second winch, the end of the first steel wire away from the first winch is equipped with the first lifting ring for being detachably connected with the upper end of steel beam, the end of the second steel wire away from the second winch is equipped with the second lifting ring for being detachably connected with the lower end of steel beam.The utility model uses two winches and is matched with two steel wires, respectively pulls the two ends of steel beam, can realize steel beam vertical hoisting again turns into horizontal, greatly reduces the swing when steel beam horizontal hoisting, and this hoisting equipment can adapt to the erection demand of restricted site, solves the problem that large equipment cannot be erected and hoisting stability is poor.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower technology, and in particular to a steel beam hoisting device. Background Technology

[0002] A steel beam needs to be erected between the water intake tower (approximately 40 meters high) and the mountainside to form a traffic bridge. The steel beams are typically hoisted using large lifting equipment (such as tower cranes), which lifts the horizontally placed beams and places them between the water intake tower and the mountainside. Large lifting equipment requires sufficient lifting space; when the distance between the water intake tower and the mountainside is close, large lifting equipment cannot be used. If small lifting equipment is used, its electric winch lacks sufficient traction and has low power control precision, causing the steel beams to sway during transport, posing a safety hazard. Furthermore, this horizontal lifting method can cause the steel beams to rotate and swing, easily colliding with other equipment, walls, etc., resulting in damage. Utility Model Content

[0003] The purpose of this utility model is to provide a steel beam hoisting equipment that can adapt to the erection needs of restricted sites and solve the problems of large equipment being unable to be erected and poor hoisting stability.

[0004] The technical solution of this utility model is: a steel beam hoisting device, including a first winch, a first wire rope wound around the first winch, a second winch located next to the first winch, and a second wire rope wound around the second winch. The end of the first wire rope away from the first winch is provided with a first lifting ring for detachably connecting to the upper end of the steel beam, and the end of the second wire rope away from the second winch is provided with a second lifting ring for detachably connecting to the lower end of the steel beam.

[0005] Preferably, the first winch is installed on the upper end of the water intake tower via a first support truss, and the second winch is installed on the upper end of the concrete foundation via a second support truss. The upper ends of the first support truss and the upper ends of the second support truss extend inclined towards each other. The first winch is installed on the upper end of the first support truss, and the second winch is installed on the upper end of the second support truss.

[0006] Preferably, the second support truss is connected to the concrete foundation by expansion bolts, and the first support truss is connected to the water intake tower by high-strength bolts.

[0007] Preferably, both the first and second support trusses include an upper wing plate, a lower wing plate, and a web plate inclinedly connected between the upper and lower wing plates. The first and second winches are respectively installed on the upper wing plate, and the water intake tower and the concrete foundation are respectively connected to the lower wing plate.

[0008] Preferably, the water intake tower is provided with a first mounting groove for placing one end of the steel beam, and the concrete foundation is provided with a second mounting groove for placing the other end of the steel beam. The first mounting groove and the second mounting groove are arranged face to face and at the same height.

[0009] Preferably, the breaking tensile force of the first and second wire ropes is greater than three times the weight of the steel beam.

[0010] Preferably, both the first winch and the second winch are hydraulic winches.

[0011] Preferably, both the first and second lifting rings are provided with bushings that come into contact with the wire rope.

[0012] Compared with related technologies, the beneficial effects of this utility model are as follows: I. This utility model uses two winches and two steel wire ropes to pull the two ends of the steel beam, which can realize the vertical lifting of the steel beam and then turn it into a horizontal position. This greatly reduces the swaying of the steel beam when it is horizontally lifted. Moreover, this hoisting equipment can adapt to the erection needs of restricted sites and solve the problems of large equipment that cannot be erected and poor hoisting stability. Second, this utility model adopts a hydraulic winch, which realizes stepless adjustment of traction force and speed through its electro-hydraulic proportional valve, and is combined with oil circuit series control to ensure the traction stability of the two sets of winches; in addition, the hydraulic winch has a normally closed brake, which realizes a positive and rapid braking response, and the braking is reliable, ensuring safety. Third, this utility model provides bushings on the first and second lifting rings, which have wear-resistant properties, reduce wire rope wear, and extend the service life of the wire rope. Attached Figure Description

[0013] Figure 1 A schematic diagram of the steel beam hoisting equipment provided by this utility model.

[0014] In the attached diagram: 1. First winch; 2. First support truss; 3. First lifting ring; 4. Steel beam; 5. First wire rope; 6. Second winch; 7. Second support truss; 8. Second wire rope; 9. Second lifting ring; 10. Mountain; 11. Water intake tower; 111. First mounting slot; 12. Concrete foundation; 121. Second mounting slot; 13. Ground. Detailed Implementation

[0015] The present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0016] like Figure 1 As shown, the water intake tower 11 is built on the ground 13, with a mountain 10 on its side. A first mounting groove 111 is provided on the side of the water intake tower 11 facing the mountain 10. According to the height of the first mounting groove 111 on the water intake tower 11, a concrete foundation 12 is constructed on the mountain 10. A second mounting groove 121 is provided on the side of the concrete foundation 12 facing the water intake tower 11. The first mounting groove 111 and the second mounting groove 121 are located at the same height.

[0017] The steel beam hoisting equipment provided in this embodiment includes a first winch 1, a first support truss 2, a first lifting ring 3, a first wire rope 5, a second winch 6, a second support truss 7, a second wire rope 8, a second lifting ring 9, and a second support truss 7.

[0018] Both the first support truss 2 and the second support truss 7 include an upper wing plate, a lower wing plate, and a web plate inclinedly connected between the upper and lower wing plates. The lower wing plate of the first support truss 2 is mounted to the water intake tower 11 using high-strength bolts, and the upper wing plate of the first support truss 2 is mounted to the first winch 1 using high-strength bolts. The lower wing plate of the second support truss 7 is mounted to the concrete foundation 12 using expansion bolts, and the upper wing plate of the second support truss 7 is mounted to the second winch 6 using high-strength bolts. The upper ends of the first support truss 2 and the upper ends of the second support truss 7 extend inclined towards each other. After installation, the verticality deviation of the first support truss 2 and the second support truss 7 is ≤1%, and the horizontality deviation of the upper wing plate is ≤2mm / m.

[0019] Both the first winch 1 and the second winch 6 are hydraulic winches (purchased components) equipped with a hydraulic control system. This system includes a hydraulic pump, relief valve, flow control valve, directional valve, and brake. It enables precise control of traction force and lifting speed. For example, when the lifting load exceeds 1.2 times the rated load, the relief valve automatically opens to unload, achieving overload protection.

[0020] One end of the first wire rope 5 is wound around the first winch 1 using a "multi-turn winding + pressure block tightening" method, and the other end of the first wire rope 5 is equipped with a first lifting ring 3. One end of the second wire rope 8 is also wound around the second winch 6 using a "multi-turn winding + pressure block tightening" method, and the other end of the second wire rope 8 is equipped with a second lifting ring 9. Both ends of the steel beam 4 are equipped with shackles, which are connected to the first lifting ring 3 and the second lifting ring 9 respectively. The inner sides of the first lifting ring 3 and the second lifting ring 9 are equipped with anti-wear bushings, and the load-bearing capacity of the lifting rings is not less than 1.5 times the weight of the steel beam. The breaking tensile strength of the first wire rope 5 and the second wire rope 8 is not less than 3 times their load-bearing weight.

[0021] In use, steel beams 4 are assembled vertically on-site using steel beam hoisting equipment and scaffolding next to the water intake tower 11. The first lifting ring 3 on the first wire rope 5 is connected to the upper end of the steel beam 4 via a shackle, and the second lifting ring 9 on the second wire rope 8 is connected to the lower end of the steel beam 4 via a shackle. The first winch 1 is started to vertically lift the steel beam 4 at a suitable speed, pausing to check every 500mm until the desired height is reached, at which point the first winch 1 is locked. The second winch 6 is started to pull the lower end of the steel beam 4, turning it from vertical to horizontal, checking the angle during this process, and locking the second winch 6 once it is in position. Simultaneously, the first winch 1 and the second winch 6 are started to pull synchronously, maintaining the horizontal position of the steel beam 4, gradually lowering it into the first mounting slot 111 and the second mounting slot 121, completing the erection of the steel beam 4.

[0022] The steel beam hoisting equipment of this utility model has a simple design, requires little site space during construction, is easy to operate, has a concise procedure, facilitates and stabilizes the hoisting of steel beams, improves construction efficiency, has long-term economic benefits, and has broad application prospects.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A steel beam hoisting device, characterized in that, It includes a first winch (1), a first wire rope (5) wound around the first winch (1), a second winch (6) located next to the first winch (1), and a second wire rope (8) wound around the second winch (6). The first wire rope (5) is provided with a first lifting ring (3) for detachable connection to the upper end of the steel beam (4) at one end away from the first winch (1), and the second wire rope (8) is provided with a second lifting ring (9) for detachable connection to the lower end of the steel beam (4) at one end away from the second winch (6).

2. The steel beam hoisting equipment according to claim 1, characterized in that, The first winch (1) is installed on the upper end of the water intake tower (11) via the first support truss (2), and the second winch (6) is installed on the upper end of the concrete foundation (12) via the second support truss (7). The upper ends of the first support truss (2) and the upper ends of the second support truss (7) extend inclined towards each other. The first winch (1) is installed on the upper end of the first support truss (2), and the second winch (6) is installed on the upper end of the second support truss (7).

3. The steel beam hoisting equipment according to claim 2, characterized in that, The second support truss (7) is connected to the concrete foundation (12) by expansion bolts, and the first support truss (2) is connected to the water intake tower (11) by high-strength bolts.

4. The steel beam hoisting equipment according to claim 2, characterized in that, The first support truss (2) and the second support truss (7) both include an upper wing plate, a lower wing plate and a web plate that is inclined between the upper wing plate and the lower wing plate. The first winch (1) and the second winch (6) are respectively installed on the upper wing plate, and the water intake tower (11) and the concrete foundation (12) are respectively connected to the lower wing plate.

5. The steel beam hoisting equipment according to claim 2, characterized in that, The water intake tower (11) is provided with a first mounting groove (111) for placing one end of the steel beam (4), and the concrete foundation (12) is provided with a second mounting groove (121) for placing the other end of the steel beam (4). The first mounting groove (111) and the second mounting groove (121) are arranged face to face and at the same height.

6. The steel beam hoisting equipment according to claim 1, characterized in that, The breaking tensile force of the first wire rope (5) and the second wire rope (8) is more than three times the weight of the steel beam (4).

7. The steel beam hoisting equipment according to claim 1, characterized in that, Both the first winch (1) and the second winch (6) are hydraulic winches.

8. The steel beam hoisting equipment according to claim 1, characterized in that, Both the first lifting ring (3) and the second lifting ring (9) are provided with bushings that come into contact with the wire rope.

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