Lifting device for bridge construction

Abstract

The utility model discloses a lifting device for bridge construction, and particularly relates to the field of lifting devices, which comprises a base, a support column fixedly mounted at the top of the base, a lifting screw rotatably connected in the support column, a gear box fixedly mounted at the top of the support column, and a lifting transmission part in threaded connection with the outer side of the lifting screw. The lifting transmission part is slidably connected into the supporting column, a first stabilizing frame is hinged to one side of the lifting transmission part, a second stabilizing frame is hinged to one end of the first stabilizing frame, a motor is fixedly installed in the gearbox, and a first bevel gear is fixedly installed at the output end of the motor. According to the utility model, the first stabilizing frame and the second stabilizing frame are arranged, and the hoisting fixing piece is limited through the first stabilizing frame and the second stabilizing frame on the two sides, so that the hoisting fixing piece cannot swing, the phenomenon that the hoisting fixing piece swings due to the influence of severe weather such as strong wind is avoided, and the safety guarantee is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting devices, and more specifically, to a lifting device used for bridge construction. Background Art

[0002] In the process of bridge construction, lifting devices are often used to lift the required items from low places to high places. Lifting devices are indispensable devices in bridge construction. Existing lifting devices are mostly lifted by lifting ropes such as steel cables, but this type of device is prone to swaying in windy and bad weather, which increases the risk of lifting and is not conducive to safe construction. Therefore, in response to this problem, how to design a lifting device for bridge construction has become a problem that we currently need to solve. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a lifting device for bridge construction, by setting a first stabilizing frame and a second stabilizing frame, the lifting fixture is limited by the first stabilizing frame and the second stabilizing frame on both sides, so that the lifting fixture will not swing, thereby avoiding the lifting fixture from swinging due to bad weather such as strong winds, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for bridge construction, comprising a base, a support column is fixedly installed on the top of the base, a lifting screw is rotatably connected inside the support column, a gear box is fixedly installed on the top of the support column, a lifting transmission member is threadedly connected to the outer side of the lifting screw, the lifting transmission member is slidably connected to the inside of the support column, a first stabilizing frame is hinged on one side of the lifting transmission member, a second stabilizing frame is hinged on one end of the first stabilizing frame, a motor is fixedly installed inside the gear box, and a first bevel gear is fixedly installed on the output end of the motor.

[0005] In a preferred embodiment, a second bevel gear is fixedly mounted on the top end of the lifting screw, and the first bevel gear is meshed with the second bevel gear.

[0006] In a preferred embodiment, a third bevel gear is meshed on the outer side of the second bevel gear, and a connecting shaft is fixedly mounted on one side of the third bevel gear.

[0007] In a preferred embodiment, the connecting shaft is rotatably connected to the interior of the gear box, and a lifting arm is fixedly mounted on one side of the gear box.

[0008] In a preferred embodiment, a winding roller is fixedly mounted on one end of the connecting shaft, and the winding roller is rotatably connected to the inside of the lifting arm.

[0009] In a preferred embodiment, a steel cable is wound around the outer side of the winding roller, and a lifting fixture is fixedly mounted on one end of the steel cable.

[0010] In a preferred embodiment, a limiting frame is fixedly mounted on one side of the lifting fixture, the second stabilizing frame is slidably connected to the inner side of the limiting frame, and a positioning pin is inserted into the interior of the limiting frame.

[0011] Technical effects and advantages of the utility model:

[0012] 1. The utility model sets a first stabilizing frame and a second stabilizing frame, and limits the lifting fixture by the first stabilizing frame and the second stabilizing frame on both sides, so that the lifting fixture will not swing, and the rising speed of the lifting transmission part is consistent with the lifting fixture, so that the lifting can be carried out normally, thereby avoiding the lifting fixture from swinging due to bad weather such as strong winds, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A magnified view of the structure of part A;

[0015] Figure 3 For this utility model Figure 1 A magnified view of the structure of part B;

[0016] Figure 4 For this utility model Figure 1 A magnified view of the C-section structure;

[0017] Figure 5 For this utility model Figure 1 Enlarged view of the D structure.

[0018] The accompanying drawings are marked as follows: 1. base; 2. support column; 3. lifting screw; 4. gear box; 5. lifting transmission member; 6. first stabilizing frame; 7. second stabilizing frame; 8. motor; 9. first bevel gear; 10. second bevel gear; 11. third bevel gear; 12. connecting shaft; 13. lifting arm; 14. winding roller; 15. steel cable; 16. lifting fixing member; 17. limit frame; 18. positioning pin. DETAILED DESCRIPTION

[0019] 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.

[0020] Refer to the instruction manual Figure 1-5 ,like Figure 1 As shown, a lifting device for bridge construction according to an embodiment of the utility model comprises a base 1, a support column 2 is fixedly installed on the top of the base 1, a lifting screw 3 is rotatably connected inside the support column 2, and a gear box 4 is fixedly installed on the top of the support column 2. Figure 2 As shown, the outer side of the lifting screw 3 is threadedly connected to a lifting transmission member 5, and the lifting transmission member 5 is slidably connected to the inside of the support column 2. One side of the lifting transmission member 5 is hinged to a first stabilizing frame 6, as shown in FIG. Figure 5 As shown, one end of the first stabilizing frame 6 is hinged to the second stabilizing frame 7. Figure 3 As shown, a motor 8 is fixedly installed inside the gear box 4, a first bevel gear 9 is fixedly installed at the output end of the motor 8, a second bevel gear 10 is fixedly installed at the top of the lifting screw 3, the first bevel gear 9 is meshed with the second bevel gear 10, a third bevel gear 11 is meshed on the outer side of the second bevel gear 10, a connecting shaft 12 is fixedly installed on one side of the third bevel gear 11, the connecting shaft 12 is rotatably connected to the inside of the gear box 4, and a lifting arm 13 is fixedly installed on one side of the gear box 4, as shown in FIG. Figure 1 As shown, a winding roller 14 is fixedly mounted on one end of the connecting shaft 12, and the winding roller 14 is rotatably connected to the inside of the lifting arm 13, and a steel cable 15 is wound around the outside of the winding roller 14. Figure 4 As shown, a lifting fixture 16 is fixedly installed at one end of the steel cable 15, a limiting frame 17 is fixedly installed on one side of the lifting fixture 16, the second stabilizing frame 7 is slidably connected to the inner side of the limiting frame 17, and a positioning pin 18 is inserted into the interior of the limiting frame 17.

[0021] It should be noted that, when the bridge construction tools are hoisted in severe weather such as strong winds, the first stabilizing frame 6 and the second stabilizing frame 7 on both sides are flipped over to enter the inner side of the limiting frame 17, and the second stabilizing frame 7 is limited by inserting the positioning pin 18, so that the second stabilizing frame 7 will not be separated from the inner side of the limiting frame 17. After the lifting object is fixed by the lifting fixture 16, the first bevel gear 9 is driven to rotate by starting the motor 8, thereby engaging with the second bevel gear 10 to drive the lifting screw 3 to rotate. At the same time, when the second bevel gear 10 rotates, it will engage with the third bevel gear 11, thereby driving the connecting shaft 12 to rotate. The lifting device 16 is moved, thereby causing the winding roller 14 to rotate to reel in the steel cable 15, thereby driving the hoisted object to rise. At the same time, when the lifting screw 3 rotates, the lifting transmission member 5 will rise, and the rising speed will be consistent with the lifting fixture 16. The lifting fixture 16 is limited by the first stabilizing frame 6 and the second stabilizing frame 7 on both sides, so that the lifting fixture 16 will not swing, thereby avoiding the lifting fixture 16 from swinging due to bad weather such as strong winds, thereby improving safety. When there is no need to limit the lifting fixture 16, the first stabilizing frame 6 and the second stabilizing frame 7 can be flipped over and folded to one side, thereby not affecting normal lifting.

[0022] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0023] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0024] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A lifting device for bridge construction, comprising a base (1), characterized in that: A support column (2) is fixedly installed on the top of the base (1), a lifting screw (3) is rotatably connected inside the support column (2), a gear box (4) is fixedly installed on the top of the support column (2), the outer side of the lifting screw (3) is threadedly connected to a lifting transmission member (5), the lifting transmission member (5) is slidably connected inside the support column (2), a first stabilizing frame (6) is hinged on one side of the lifting transmission member (5), a second stabilizing frame (7) is hinged on one end of the first stabilizing frame (6), a motor (8) is fixedly installed inside the gear box (4), and a first bevel gear (9) is fixedly installed on the output end of the motor (8).

2. A lifting device for bridge construction according to claim 1, characterized in that: A second bevel gear (10) is fixedly mounted on the top end of the lifting screw rod (3), and the first bevel gear (9) and the second bevel gear (10) are arranged in a meshing state.

3. A lifting device for bridge construction according to claim 2, characterized in that: A third bevel gear (11) is meshed on the outer side of the second bevel gear (10), and a connecting shaft (12) is fixedly mounted on one side of the third bevel gear (11).

4. A lifting device for bridge construction according to claim 3, characterized in that: The connecting shaft (12) is rotatably connected to the inside of the gear box (4), and a lifting arm (13) is fixedly installed on one side of the gear box (4).

5. A lifting device for bridge construction according to claim 4, characterized in that: A winding roller (14) is fixedly mounted on one end of the connecting shaft (12), and the winding roller (14) is rotatably connected to the inside of the lifting arm (13).

6. A lifting device for bridge construction according to claim 5, characterized in that: A steel cable (15) is wound around the outer side of the winding roller (14), and a lifting fixture (16) is fixedly mounted on one end of the steel cable (15).

7. A lifting device for bridge construction according to claim 6, characterized in that: A limiting frame (17) is fixedly mounted on one side of the lifting fixture (16); the second stabilizing frame (7) is slidably connected to the inner side of the limiting frame (17); and a positioning pin (18) is inserted into the interior of the limiting frame (17).

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