Steel box girder hoisting equipment

Abstract

The utility model relates to the technical field of hoisting equipment, and discloses steel box girder hoisting equipment which comprises a fixing frame, a fixing rod is fixedly connected above the fixing frame, a rotating plate is arranged above the fixing rod, and the other end of the fixing rod penetrates through the rotating plate and is rotatably connected with the rotating plate. A motor is started to drive a connecting rod to rotate, a first gear drives a second gear to rotate, so that a fixing frame can rotate on a rotating plate, a steel box girder can be driven to adjust the rotating angle, the clamping rod is rotated by taking the connecting position of the clamping rod and a hook as a center point, and the rotating angle of the steel box girder can be adjusted. The other end of the clamping rod is overturned into the other end of the hook, one end of the insertion rod penetrates through the hook and the clamping rod and extends to the other side of the hook, the other end of the clamping rod can be fixed, the unhooking phenomenon is prevented, and the problems that an existing device is poor in use effect and safety are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a steel box girder hoisting equipment. Background Art

[0002] Steel box girder, also called steel plate box girder, is a common structural form for long-span bridges. It is generally used in bridges with large spans. Because of its box-like appearance, it is called steel box girder. In long-span cable-supported bridges, the span of steel box main beams is several hundred meters to thousands of meters. It is generally manufactured and installed in several beam sections. Its cross section has wide and flat appearance characteristics. During the construction process, the steel box girder needs to be hoisted by hoisting equipment.

[0003] After searching, a Chinese patent discloses a steel box girder lifting device (authorization announcement number: CN 218931463U), which includes: a lifting device, a fixed frame is installed at the bottom of the lifting device; a moving block, the moving blocks are slidably installed on the left and right sides of the bottom of the fixed frame, the bottom of the moving block is fixedly connected with a lifting rope, and the end of the lifting rope away from the moving block is fixedly connected with a hook; a hydraulic rod, a hydraulic rod is installed at the bottom of the fixed frame, a motor is installed on the right side of the fixed frame, and the output end of the motor is fixedly connected with a shaft rod; wherein the outer surface of the shaft rod is a two-way threaded structure, and the connection between the shaft rod and the moving block is a threaded connection, and the steel box girder body is suspended at the bottom of the hook. The steel box girder lifting device is not easy to shake the steel box girder during the lifting process, which prevents the steel box girder lifting position from shifting, and is convenient for lifting steel box girders of different sizes, and the device is highly flexible.

[0004] In the actual application process of this patented technology, the steel box girder can be guided and installed to facilitate the subsequent construction of the staff. However, during use, since the steel box girder will have a certain angle deviation when it is lifted and transported, the staff needs to correct the angle of the steel box girder during the lifting and installation to facilitate the accurate installation of the steel box girder. The above scheme lacks a mechanism that can adjust the angle of the steel box girder, so manual adjustment is required, which greatly reduces the practical effect of the device. At the same time, the above scheme sets a spring to conflict with the steel box girder to keep the lifting rope in a taut state. However, when the steel box girder is lifted and transported, the steel box girder will shake, and the spring is compressible. Therefore, under the action of the shaking force, the spring will be compressed to make the lifting rope in a relaxed state. At this time, the steel box girder is very easy to fall off from the hanging on the lifting rope, causing personal injury and damage and deformation of the steel box girder, thereby greatly reducing the safety of the device. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a steel box beam hoisting device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A steel box girder hoisting device comprises a fixed frame, a fixed rod is fixedly connected to the top of the fixed frame, a rotating plate is arranged above the fixed rod, the other end of the fixed rod passes through the rotating plate and is rotatably connected thereto, a hoist is fixedly connected to the top of the rotating plate, a rotating mechanism is arranged on one side above the fixed frame, an adjusting mechanism is arranged on the inner side below the fixed frame, a lifting rope is arranged below both ends of the adjusting mechanism, and the other end of the lifting rope is fixedly connected to a hook;

[0008] The rotating mechanism includes a motor, a connecting rod, a first gear and a second gear. The motor is fixedly connected to the upper side of the fixed frame. One end of the connecting rod is fixedly connected to the output end of the motor. The first gear is sleeved on the other end of the connecting rod and fixedly connected thereto. The second gear is sleeved under the rotating plate and fixedly connected thereto. The first gear is meshed with the second gear.

[0009] Preferably, one end of the hook is rotatably connected to a clamping rod, and the other end of the clamping rod is movably connected inside the other end of the hook. An insertion rod is provided on one side of the other end of the hook, and one end of the insertion rod passes through the hook and the clamping rod and extends to the other side of the other end of the hook. The insertion rod is slidably connected to the hook and the clamping rod.

[0010] Preferably, a placement groove is opened inside one end of the insertion rod, and a spring and a steel ball are arranged inside the insertion rod through the placement groove. The spring is arranged below the steel ball, and the other end of the steel ball passes through the insertion rod and is slidably connected thereto.

[0011] Preferably, the other end of the insertion rod is fixedly connected to a connecting rope, and the other end of the connecting rope is fixedly connected to one side of the hook.

[0012] Preferably, a bearing seat is provided at the connection between the fixed rod and the rotating plate, the bearing seat is sleeved on the other end of the fixed rod and fixedly connected thereto, and the outer side of the bearing seat is fixedly connected to the inner wall of the rotating plate.

[0013] Preferably, two limit plates are provided on the other end of the fixing rod, one limit plate is provided inside the rotating plate, and the other limit plate is provided below the rotating plate, and the rotating plate and the limit plate are rotatably connected.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the connecting rod is driven to rotate by starting the motor, so that the first gear drives the second gear to rotate the rod, so that the fixed frame can rotate on the rotating plate, and the steel box girder can be driven to adjust the rotation angle, which solves the problem of poor use effect of the current device.

[0016] 2. In the utility model, the clamping rod is rotated with the connection between the clamping rod and the hook as the center point, and the other end of the clamping rod is flipped to the inside of the other end of the hook. By passing one end of the insertion rod through the hook and the clamping rod and extending to the other side of the hook, the other end of the clamping rod can be fixed to prevent unhooking, thereby solving the problem of poor safety of the current device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the lifting equipment in the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the fixing frame in the utility model.

[0019] Figure 3 It is a schematic diagram of the connection structure of the rotating mechanism in the utility model.

[0020] Figure 4 For the utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0021] Figure 5 It is a schematic diagram of the connection structure between the clamping rod and the inserting rod in the utility model.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the insertion rod in the utility model.

[0023] Figure 7 It is a schematic diagram of the connection structure between the bearing seat and the limiting plate in the utility model.

[0024] Legend: DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-7The utility model provides an embodiment: a steel box girder hoisting device, comprising a fixed frame 1, a fixed rod 2 is fixedly connected to the top of the fixed frame 1, a rotating plate 3 is arranged above the fixed rod 2, the other end of the fixed rod 2 passes through the rotating plate 3 and is rotatably connected thereto, a sling 4 is fixedly connected to the top of the rotating plate 3, a rotating mechanism 5 is arranged on one side above the fixed frame 1, an adjusting mechanism 6 is arranged on the inner side below the fixed frame 1, the adjusting mechanism 6 is used to adjust the distance between the lifting ropes 7, lifting ropes 7 are arranged below both ends of the adjusting mechanism 6, the other end of the lifting rope 7 is fixedly connected to a hook 8, and the hook 8 is used to hang the steel box girder;

[0027] The rotating mechanism 5 includes a motor 51, a connecting rod 52, a first gear 53 and a second gear 54. The motor 51 is fixedly connected to the upper side of the fixed frame 1, one end of the connecting rod 52 is fixedly connected to the output end of the motor 51, the first gear 53 is sleeved on the other end of the connecting rod 52 and fixedly connected thereto, the second gear 54 is sleeved under the rotating plate 3 and fixedly connected thereto, and the first gear 53 and the second gear 54 are meshed with each other.

[0028] Through the above technical solution, by setting up the rotating mechanism 5, the connecting rod 52 is driven to rotate by starting the motor 51, so that the first gear 53 drives the second gear 54 to rotate the rod, so that the fixed frame 1 can rotate on the rotating plate 3, and the steel box girder can be driven to adjust the rotation angle.

[0029] Specifically, one end of the hook 8 is rotatably connected to the clamping rod 9, and the other end of the clamping rod 9 is movably connected inside the other end of the hook 8. An insertion rod 10 is provided on one side of the other end of the hook 8. One end of the insertion rod 10 penetrates the hook 8 and the clamping rod 9 and extends to the other side of the other end of the hook 8. The insertion rod 10 is slidably connected to the hook 8 and the clamping rod 9.

[0030] Through the above technical solution, by setting the clamping rod 9 and the insertion rod 10, by rotating the clamping rod 9 with the connection between the clamping rod 9 and the hook 8 as the center point, the other end of the clamping rod 9 is flipped to the inside of the other end of the hook 8, and by passing one end of the insertion rod 10 through the hook 8 and the clamping rod 9 and extending to the other side of the hook 8, the other end of the clamping rod 9 can be fixed to prevent unhooking.

[0031] Specifically, a placement groove 12 is opened inside one end of the insertion rod 10, and a spring 13 and a steel ball 14 are arranged inside the insertion rod 10 through the placement groove 12. The spring 13 is arranged below the steel ball 14, and the other end of the steel ball 14 passes through the insertion rod 10 and is slidably connected thereto.

[0032] Through the above technical solution, by setting the spring 13 and the steel ball 14, the other end of the steel ball 14 can be always pushed to the outside of the insertion rod 10 under the action of the spring 13, which can prevent the insertion rod 10 from detaching from the inside of the hook 8 and the clamping rod 9 for no reason.

[0033] Specifically, the other end of the insertion rod 10 is fixedly connected to a connecting rope 11 , and the other end of the connecting rope 11 is fixedly connected to one side of the hook 8 .

[0034] Through the above technical solution, by setting the connecting rope 11, the position of the insertion rod 10 can be fixed by the connecting rope 11, so as to prevent the staff from losing the insertion rod 10 by mistake, and also make it convenient for the staff to take it and use it at any time.

[0035] Specifically, a bearing seat 15 is provided at the connection between the fixed rod 2 and the rotating plate 3 . The bearing seat 15 is sleeved on the other end of the fixed rod 2 and fixedly connected thereto. The outer side of the bearing seat 15 is fixedly connected to the inner wall of the rotating plate 3 .

[0036] Through the above technical solution, by setting the bearing seat 15, the friction between the fixed rod 2 and the rotating plate 3 can be reduced through the bearing seat 15, which can facilitate the rotating mechanism 5 to easily drive the fixed frame 1 to rotate.

[0037] Specifically, two limit plates 16 are disposed on the other end of the fixed rod 2 , one limit plate 16 is disposed inside the rotating plate 3 , and the other limit plate 16 is disposed below the rotating plate 3 , and the rotating plate 3 and the limit plate 16 are rotatably connected.

[0038] Through the above technical solution, a limit plate 16 is set to fix the fixed rod 2 and the rotating plate 3, which plays a limiting role for the fixed rod 2 and also plays a protective role. When the bearing seat 15 and the rotating plate 3 are loose, the limit plate 16 can prevent the fixed rod 2 and the rotating plate 3 from detaching and causing the steel box girder to fall.

[0039] Working principle: When in use, first adjust the distance between the lifting ropes 7 according to the position of the hanging ring on the steel box girder by starting the adjustment mechanism 6, then the lifting ring on the steel box girder is connected with the hook 8 on the lifting rope 7, then the clamping rod 9 is rotated with the connection between the clamping rod 9 and the hook 8 as the center point, and the other end of the clamping rod 9 is flipped to the inside of the other end of the hook 8, and one end of the plug rod 10 is passed through the hook 8 and the clamping rod 9 and extends to the other side of the hook 8. The other end of the clamping rod 9 can be fixed to prevent unhooking, and then the hydraulic cylinder under the fixed frame 1 is started to make the limit frame conflict with the steel box girder, and then the steel box girder can be lifted and transported, and then when the steel box girder is in the installation position and the steel box girder has an angular offset, the connecting rod 52 is driven to rotate by starting the motor 51, so that the first gear 53 drives the second gear 54 to rotate the rod, so that the fixed frame 1 can be rotated on the rotating plate 3, and the steel box girder can be driven to adjust the rotation angle, so that it is convenient for the staff to install the steel box girder.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel box girder hoisting device, comprising a fixing frame (1), characterized in that: A fixing rod (2) is fixedly connected to the top of the fixing frame (1), a rotating plate (3) is arranged above the fixing rod (2), the other end of the fixing rod (2) passes through the rotating plate (3) and is rotatably connected thereto, a sling (4) is fixedly connected to the top of the rotating plate (3), a rotating mechanism (5) is arranged on one side of the top of the fixing frame (1), an adjusting mechanism (6) is arranged on the inner side of the bottom of the fixing frame (1), a sling rope (7) is arranged below both ends of the adjusting mechanism (6), and the other end of the sling rope (7) is fixedly connected to a hook (8); The rotating mechanism (5) comprises a motor (51), a connecting rod (52), a first gear (53) and a second gear (54); the motor (51) is fixedly connected to one side above the fixing frame (1); one end of the connecting rod (52) is fixedly connected to the output end of the motor (51); the first gear (53) is sleeved on the other end of the connecting rod (52) and fixedly connected thereto; the second gear (54) is sleeved on the bottom of the rotating plate (3) and fixedly connected thereto; the first gear (53) and the second gear (54) are meshed with each other.

2. The steel box girder hoisting equipment according to claim 1, characterized in that: One end of the hook (8) is rotatably connected to a clamping rod (9), and the other end of the clamping rod (9) is movably connected inside the other end of the hook (8). An insertion rod (10) is provided on one side of the other end of the hook (8), and one end of the insertion rod (10) penetrates the hook (8) and the clamping rod (9) and extends to the other side of the other end of the hook (8), and the insertion rod (10) is slidably connected to the hook (8) and the clamping rod (9).

3. The steel box girder hoisting equipment according to claim 2, characterized in that: A placement groove (12) is provided inside one end of the insertion rod (10), and a spring (13) and a steel ball (14) are arranged inside the insertion rod (10) through the placement groove (12). The spring (13) is arranged below the steel ball (14), and the other end of the steel ball (14) passes through the insertion rod (10) and is slidably connected thereto.

4. The steel box girder hoisting equipment according to claim 2, characterized in that: The other end of the insertion rod (10) is fixedly connected to a connecting rope (11), and the other end of the connecting rope (11) is fixedly connected to one side of the hook (8).

5. The steel box girder hoisting equipment according to claim 1, characterized in that: A bearing seat (15) is provided at the connection between the fixed rod (2) and the rotating plate (3); the bearing seat (15) is sleeved on the other end of the fixed rod (2) and fixedly connected thereto; the outer side of the bearing seat (15) is fixedly connected to the inner wall of the rotating plate (3).

6. The steel box girder hoisting equipment according to claim 1, characterized in that: Two limit plates (16) are arranged on the other end of the fixed rod (2), one of the limit plates (16) is arranged inside the rotating plate (3), and the other limit plate (16) is arranged below the rotating plate (3), and the rotating plate (3) and the limit plate (16) are rotatably connected.

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