Lifting appliance for adjusting gravity center of steel tower section in lifting process

Abstract

The utility model relates to the technical field of steel tower section lifting appliances, in particular to a lifting appliance for adjusting the gravity center of a steel tower section in the lifting process, which comprises a supporting cross beam, lifting chains are connected to the left end and the right end of the bottom of the supporting cross beam, lifting hooks are connected to the bottoms of the lifting chains, and a lifting seat is sleeved on the outer side of the supporting cross beam. A plurality of groups of guide pulleys at equal intervals are rotatably mounted at the bottom of the lifting seat, a lifting ring is arranged at the top of the lifting hook, a rectangular groove is inwards formed in the top of the supporting cross beam, a folding type support is mounted in the rectangular groove, and a rotating lead screw is rotatably connected to the interior of the folding type support; according to the lifting appliance, the lifting point of the lifting appliance can be adjusted according to the gravity center position of a lifted object, the lifting appliance and the lifted object are guaranteed to be in a horizontal state, the requirement for the inclination of the lifted object is met, the frequency of replacing the lifting appliance is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel tower segment hoists, in particular to a hoist for adjusting the center of gravity of a steel tower segment during the hoisting process. Background Art

[0002] The existing lifting equipment for lifting steel tower segments does not have the function of adjusting the center of gravity during use. Due to the deviation of the lifting position of the lifting ring or the deviation of the center of gravity of the lifted object from the lifting center line of the lifting equipment, the center of gravity will deviate slightly during use, resulting in a small angle of tilt when lifting the steel tower segment, affecting construction.

[0003] Therefore, it is particularly important to design a lifting device for adjusting the center of gravity of the steel tower segment during the lifting process to change the above-mentioned technical defects and improve the overall practicality. Utility Model Content

[0004] The utility model aims to provide a hoist for adjusting the center of gravity of a steel tower segment during the hoisting process, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The yoke is provided with a lifting gear at the bottom end of the support beam, and the lifting gear is connected with a lifting gear at the bottom end of the support beam to lift the lifting gear.

[0007] As a preferred solution of the utility model, a slide groove extending along the length direction of the support beam is provided at the bottom of the support beam, and the connection between the guide pulley and the slide groove is a sliding connection.

[0008] As a preferred solution of the utility model, the folding bracket is fixedly installed inside the rectangular groove by bolts.

[0009] As a preferred solution of the utility model, both ends of the rotating screw are rotatably connected to the inside of the folding bracket through a bearing seat.

[0010] As a preferred solution of the utility model, the forward and reverse motors are remotely connected to a remote controller via a local area network.

[0011] As a preferred solution of the utility model, the connection between the sliding seat and the rotating screw is a threaded connection, and the connection between the sliding seat and the slide rail is a sliding connection.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, by setting up a sling for adjusting the center of gravity of the steel tower segment during the lifting process, the lifting point of the sling can be adjusted according to the center of gravity position of the lifted object, ensuring that the sling and the lifted object are in a horizontal state, meeting the inclination requirements of the lifted object, reducing the frequency of replacing the sling and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the main view of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0017] In the figure: 1. Support beam; 2. Lifting chain; 3. Hook; 4. Lifting seat; 5. Guide pulley; 6. Lifting ring; 7. Rectangular groove; 8. Folding bracket; 801. Rotating screw; 802. Forward and reverse motor; 803. Drive pulley; 804. Drive belt; 805. Slide rail; 806. Sliding seat. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0020] A lifting device for adjusting the center of gravity of a steel tower segment during the lifting process comprises a supporting crossbeam 1, the left and right ends of the bottom of the supporting crossbeam 1 are connected with lifting chains 2, the bottom of the lifting chain 2 is connected with a hook 3, the outer side of the supporting crossbeam 1 is sleeved with a lifting seat 4, the bottom of the lifting seat 4 is rotatably installed with multiple groups of guide pulleys 5 with the same interval, the top of the hook 3 is provided with a lifting ring 6, the top of the supporting crossbeam 1 is provided with a rectangular groove 7 inwardly, and a folding bracket 8 is installed inside the rectangular groove 7;

[0021] A slide groove extending along the length direction of the supporting beam 1 is provided at the bottom of the supporting beam 1, the guide pulley 5 is connected to the slide groove by sliding connection, and the folding bracket 8 is fixedly installed inside the rectangular groove 7 by bolts.

[0022] In this embodiment, please refer to Figure 3 , the internal rotation of the folding bracket 8 is connected with a rotating screw 801, and a forward and reverse motor 802 is installed on the left side of the bottom of the supporting beam 1. The output end of the forward and reverse motor 802 and the through end of the rotating screw 801 are both sleeved with a transmission pulley 803, and a transmission belt 804 is connected between the two sets of transmission pulleys 803. The front and rear sides of the folding bracket 8 are provided with slide rails 805, and a sliding seat 806 is connected between the rotating screw 801 and the slide rail 805. The top of the sliding seat 806 is fixedly connected to the hanging seat 4;

[0023] Both ends of the rotating screw 801 are rotatably connected to the inside of the folding bracket 8 through the bearing seat, the forward and reverse motor 802 is remotely connected to the remote controller through the local area network, the connection between the sliding seat 806 and the rotating screw 801 is a threaded connection, and the connection between the sliding seat 806 and the slide rail 805 is a sliding connection.

[0024] The working process of the utility model is as follows: when in use, the steel tower segment is lifted by the lifting chain 2 and the hook 3. When the center of gravity shifts to one side, the forward and reverse motor 802 is started remotely through the remote control. The forward and reverse motor 802 drives the transmission pulley 803 to rotate by the transmission belt 804, thereby driving the rotating screw 801 to rotate. The sliding seat 806 is driven to move left and right under the threaded drive of the rotating screw 801 and the sliding cooperation of the slide rail 805, and the lifting seat 4 is moved on the supporting beam 1 for adjustment under the sliding cooperation of the guide pulley 5. The lifting point of the sling can be adjusted according to the center of gravity position of the lifted object to ensure that the sling and the lifted object are in a horizontal state, meet the requirements of the inclination of the lifted object, reduce the frequency of replacing the sling, and improve production efficiency.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting device for adjusting the center of gravity of a steel tower segment during lifting, comprising a supporting beam (1), characterized in that: The left and right ends of the bottom of the supporting crossbeam (1) are connected to lifting chains (2), the bottom of the lifting chain (2) is connected to a hook (3), the outer side of the supporting crossbeam (1) is sleeved with a lifting seat (4), the bottom of the seat (4) is rotatably mounted with multiple groups of guide pulleys (5) with the same spacing, the top of the hook (3) is provided with a lifting ring (6), the top of the supporting crossbeam (1) is provided with a rectangular groove (7) inwardly, the inside of the rectangular groove (7) is provided with a folding bracket (8), and the inside of the folding bracket (8) is rotatably connected with a rotating wire The support beam (801) is provided with a forward and reverse motor (802) on the left side of the bottom of the support beam (1), the output end of the forward and reverse motor (802) and the through end of the rotating screw rod (801) are both sleeved with a transmission pulley (803), a transmission belt (804) is connected between the two groups of the transmission pulleys (803), the front and rear sides of the folding bracket (8) are both provided with slide rails (805), a sliding seat (806) is connected between the rotating screw rod (801) and the slide rail (805), and the top of the sliding seat (806) is fixedly connected to the hanging seat (4).

2. The lifting device for adjusting the center of gravity of a steel tower segment during the lifting process according to claim 1 is characterized in that: The bottom of the supporting crossbeam (1) is provided with a slide groove extending along the length direction of the supporting crossbeam (1), and the connection between the guide pulley (5) and the slide groove is a sliding connection.

3. The lifting device for adjusting the center of gravity of a steel tower segment during the lifting process according to claim 1 is characterized in that: The folding bracket (8) is fixedly installed inside the rectangular groove (7) by means of bolts.

4. The lifting device for adjusting the center of gravity of a steel tower segment during the lifting process according to claim 1 is characterized in that: Both ends of the rotating screw rod (801) are rotatably connected to the inside of the folding bracket (8) via a bearing seat.

5. The lifting device for adjusting the center of gravity of a steel tower segment during the lifting process according to claim 1 is characterized in that: The forward and reverse motor (802) is remotely connected to a remote controller via a local area network.

6. The lifting device for adjusting the center of gravity of a steel tower segment during the lifting process according to claim 1 is characterized in that: The connection between the sliding seat (806) and the rotating screw rod (801) is a threaded connection, and the connection between the sliding seat (806) and the slide rail (805) is a sliding connection.

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