Lifting appliance for lifting bridge prefabricated part

Abstract

The utility model discloses a lifting appliance for lifting bridge prefabricated parts, which relates to the technical field of bridge lifting appliances and comprises a lifting beam, fixing boxes are arranged at two ends of the bottom of the lifting beam, fixing rings are fixed at the bottoms of two ends of the lifting beam outside the fixing boxes, and a fixing seat is fixed at the bottom of the lifting beam between the fixing boxes. A double-shaft motor is installed in the fixing base, side bottom grooves are formed in the two ends of the bottom of the fixing box, bottom blocks are slidably connected into the side bottom grooves, a fixing ring at the bottom of the hanging beam serves as a fixing hanging ring, a moving ring serves as a moving hanging ring, and the double-shaft motor drives a lead screw to rotate after working. The movable ring can be driven to horizontally move through threaded connection of the lead screw and the middle block and sliding of the bottom block in the side bottom groove, so that the position of the movable ring can be changed through movement, and then the lifting appliance can be adjusted according to balance lifting positions of different prefabricated parts and then is adaptively lifted.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge hoisting equipment, in particular to a hoisting equipment used for hoisting prefabricated bridge components. Background Art

[0002] As the core auxiliary tools in bridge construction, the hoisting slings for prefabricated bridge components are exquisitely designed and powerful. These slings are usually made of high-strength alloy steel materials to ensure stability and safety during the hoisting process. They have excellent load-bearing capacity and can easily handle prefabricated components of various specifications and weights. The structural design of the slings takes into account various possible situations during hoisting to ensure balance and stability during the hoisting process to avoid any damage to the components.

[0003] In the process of implementing this solution, the inventors found that the following problems in the prior art have not been well solved: the hoist is connected to the crane through a steel rope, and a hanging ring is provided at the bottom. The hanging ring is connected to the hanging ring on the prefabricated part through a steel chain for hoisting. However, different prefabricated parts have different lengths, and the spacing between the hanging rings at the bottom of the hanging beam is fixed, and it cannot be adjusted to adapt to the optimal balance position when the prefabricated part is being hoisted. Utility Model Content

[0004] The main purpose of the utility model is to provide a hoisting device for hoisting prefabricated bridge components, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A hoisting device for hoisting prefabricated components of a bridge comprises a hanging beam, wherein both ends of the bottom of the hanging beam are provided with fixing boxes, and the bottom of the hanging beam located at both ends outside the fixing boxes is fixed with fixing rings, the bottom of the hanging beam located between the fixing boxes is fixed with a fixing seat, a double-axis motor is installed inside the fixing seat, both ends of the bottom of the fixing box are chiseled with side bottom grooves, the insides of the side bottom grooves are slidably connected with bottom blocks, the fixing box is chiseled with an intermediate groove at the position between the side bottom grooves, the inner top of the fixing box located between the side bottom grooves is chiseled with a top groove, a top block is arranged inside the top groove, the bottom of the top block is respectively fixed to the top of the bottom block, the bottom of the top block located at the position of the intermediate groove is fixed with an intermediate block, the intermediate block is connected with the intermediate groove through the intermediate groove, a moving ring is welded to the bottom of the bottom block, support plates are welded to both ends of the hanging beam located at the fixing boxes, a screw rod is arranged between the support plates, and one end of the screw rod close to the position of the dual-axis motor is connected with the support plate through the support plate.

[0007] Preferably, the hanging beam, the fixing seat and the fixing box are all connected by welding, and the welding method is full welding.

[0008] Preferably, the output ends at both ends of the dual-axis motor are respectively fixedly connected to one end of the lead screw passing through the support plate.

[0009] Preferably, both ends of the screw rod are rotatably connected to the support plate respectively.

[0010] Preferably, one end of the screw rod located between the support plates passes through the middle block and is threadedly connected thereto.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The fixed ring at the bottom of the lifting beam serves as a fixed hanging ring, while the movable ring serves as a movable hanging ring. After the dual-axis motor works, it drives the screw to rotate. The threaded connection between the screw and the middle block and the sliding of the bottom block in the side bottom groove can drive the movable ring to move horizontally, so that the movable ring can change its position by moving, and then the hoist can be adjusted according to the balanced hanging position of different prefabricated components to adapt to the hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a hoisting device for hoisting prefabricated bridge components according to the utility model;

[0014] Figure 2 This is a partial structural schematic diagram of a hoisting device for hoisting prefabricated bridge components according to the utility model;

[0015] Figure 3 This is a structural schematic diagram of the position of a fixing box of a hoisting device for hoisting prefabricated bridge components according to the utility model;

[0016] Figure 4 The utility model is a schematic structural diagram of a cross-section of a fixing box of a hoisting device for hoisting prefabricated bridge components.

[0017] In the figure: 1. hanging beam; 2. fixed seat; 3. double-axis motor; 4. fixed box; 5. fixed ring; 6. side bottom groove; 7. top groove; 8. middle groove; 9. bottom block; 10. top block; 11. middle block; 12. moving ring; 13. support plate; 14. screw rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-4As shown, a hoisting device for hoisting prefabricated components of a bridge comprises a hanging beam 1, both ends of the bottom of the hanging beam 1 are provided with fixing boxes 4, the bottom of the hanging beam 1 at both ends outside the fixing boxes 4 is fixed with fixing rings 5, the bottom of the hanging beam 1 between the fixing boxes 4 is fixed with a fixing seat 2, a double-axis motor 3 is installed inside the fixing seat 2, both ends of the bottom of the fixing box 4 are chiseled with side bottom grooves 6, the inside of the side bottom grooves 6 are slidably connected with bottom blocks 9, the fixing box 4 is located between the side bottom grooves 6 and has an intermediate groove 8, and the fixing box 4 is located between the side bottom grooves 6. A top groove 7 is excavated at the inner top between the side bottom grooves 6, and a top block 10 is arranged inside the top groove 7. The bottom of the top block 10 is fixed to the top of the bottom block 9, and an intermediate block 11 is fixed to the bottom of the top block 10 located at the position of the intermediate groove 8. The intermediate block 11 is connected to the intermediate groove 8. A movable ring 12 is welded to the bottom of the bottom block 9, and support plates 13 are welded at both ends of the hanging beam 1 located at the fixed box 4. Screw rods 14 are arranged between the support plates 13, and one end of the screw rod 14 close to the position of the dual-axis motor 3 is connected to the support plate 13.

[0020] Specifically, the hanging beam 1 and the fixing seat 2 and the fixing box 4 are all connected by welding, and the welding method is full welding, so that the connection between them is more stable.

[0021] Specifically, the output ends at both ends of the dual-axis motor 3 are respectively fixedly connected to one end of the lead screw 14 passing through the support plate 13 .

[0022] Specifically, both ends of the screw rod 14 are rotatably connected to the support plate 13 respectively.

[0023] Specifically, one end of the screw rod 14 located between the support plates 13 passes through the middle block 11 and is threadedly connected thereto.

[0024] Working principle:

[0025] The fixed ring 5 at the bottom of the lifting beam 1 serves as a fixed hanging ring, while the movable ring 12 serves as a movable hanging ring. After the dual-axis motor 3 works, it drives the screw rod 14 to rotate. The threaded connection between the screw rod 14 and the intermediate block 11 and the sliding of the bottom block 9 in the side bottom groove 6 can drive the movable ring 12 to move horizontally, so that the movable ring 12 can change its position by moving, and then the hoist can be adjusted according to the balanced hanging position of different prefabricated components to adapt to the hoisting.

[0026] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A hoisting device for hoisting prefabricated bridge components, comprising a hoisting beam (1), characterized in that: Both ends of the bottom of the hanging beam (1) are provided with fixing boxes (4), and fixing rings (5) are fixed to the bottom of the hanging beam (1) at both ends outside the fixing boxes (4). A fixing seat (2) is fixed to the bottom of the hanging beam (1) between the fixing boxes (4), and a dual-axis motor (3) is installed inside the fixing seat (2). Both ends of the bottom of the hanging beam (4) are provided with side bottom grooves (6), and the inside of the side bottom grooves (6) is slidably connected with a bottom block (9). The fixing box (4) is provided with an intermediate groove (8) at the position between the side bottom grooves (6), and the fixing box (4) is provided with a top groove between the side bottom grooves (6). A top groove (7) is provided, a top block (10) is arranged inside the top groove (7), the bottom of the top block (10) is respectively fixed to the top of the bottom block (9), an intermediate block (11) is fixed to the bottom of the top block (10) located at the position of the intermediate groove (8), the intermediate block (11) is connected to the intermediate groove (8), a moving ring (12) is welded to the bottom of the bottom block (9), support plates (13) are welded at both ends of the suspension beam (1) located at the fixed box (4), a screw rod (14) is arranged between the support plates (13), and one end of the screw rod (14) close to the position of the dual-axis motor (3) is connected to the support plate (13).

2. The lifting device for lifting prefabricated bridge components according to claim 1, characterized in that: The hanging beam (1), the fixing seat (2) and the fixing box (4) are all connected by welding, and the welding method is full welding.

3. The lifting device for lifting prefabricated bridge components according to claim 1, characterized in that: The output ends at both ends of the dual-axis motor (3) are respectively fixedly connected to one end of the lead screw (14) passing through the support plate (13).

4. The lifting device for lifting prefabricated bridge components according to claim 1, characterized in that: Both ends of the screw rod (14) are rotatably connected to the support plate (13) respectively.

5. The lifting device for lifting prefabricated bridge components according to claim 1, characterized in that: One end of the screw rod (14) located between the support plates (13) passes through the middle block (11) and is threadedly connected thereto.

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