Overhead crane main hook maintenance support

Abstract

The utility model relates to the technical field of crown block main hook overhauling in metallurgical projects, in particular to a crown block main hook overhauling support which comprises a bottom frame and a top frame, a plurality of supporting columns are fixed between the bottom frame and the top frame, the bottoms of the supporting columns penetrate through the bottom frame, and the lower surfaces of the supporting columns are flush with the lower surface of the bottom frame. A containing hole is formed in the lower surface of the supporting column, an electric telescopic rod and a rolling wheel are arranged in the containing hole, the electric telescopic rod is fixed to the hole wall of the containing hole, the rolling wheel is installed on a piston rod of the electric telescopic rod, and a crawling ladder is installed on one side of the top frame and one side of the bottom frame. The maintenance platform has the technical effects that maintenance personnel can climb up the bracket conveniently, and the bracket can be moved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance of a main hook of a crane in a metallurgical project, in particular to a maintenance bracket for a main hook of a crane. Background Art

[0002] At present, in smelting projects, especially in the workshops of blast furnace, steelmaking, cold rolling and other projects, there are many overhead cranes used for production and maintenance. The main hook of the overhead crane is heavy and irregular in shape. In the production workshop, the main hook of the overhead crane is often temporarily overhauled or temporarily placed, and the main hook of the overhead crane is placed on the supporting platform.

[0003] For example, the Chinese utility model patent with publication number CN210421857U discloses a platform device for replacing the movable pulley block of the main hook of a crane, which includes two movable platforms and a fence. The movable platform includes a frame base formed by splicing a number of channel steels and a steel plate arranged on the upper part of the base. The two bases are placed side by side to form a movable platform, and fences are arranged on both sides of the movable platform. When inspecting the main hook, the main hook is placed on the movable platform, and the maintenance worker climbs onto the movable platform to repair the main hook.

[0004] When maintenance personnel repair the main hook through the above platform, it is inconvenient for the maintenance personnel to climb onto the platform, and it is also inconvenient to move the platform when the platform is not in use. Utility Model Content

[0005] The embodiment of the utility model provides a maintenance bracket for a main hook of a crane, so as to achieve the technical effect of making it convenient for maintenance personnel to climb onto the bracket and move the bracket.

[0006] A crane main hook maintenance bracket adopts the following technical solutions:

[0007] A maintenance bracket for a main hook of an overhead crane comprises a bottom frame and a top frame, a plurality of support columns are fixed between the bottom frame and the top frame, the bottoms of the support columns pass through the bottom frame, the lower surfaces of the support columns are flush with the lower surface of the bottom frame, a receiving hole is provided on the lower surface of the support columns, an electric telescopic rod and a roller are arranged in the receiving hole, the electric telescopic rod is fixed on the hole wall of the receiving hole, the roller is installed on the piston rod of the electric telescopic rod, and a ladder is installed on one side of the top frame and the bottom frame.

[0008] Furthermore, a clamping assembly for clamping and fixing the main hook is provided on the top frame.

[0009] Furthermore, the clamping assembly includes a fixing plate and a mounting plate fixed above the top frame, a clamping plate is arranged on the side of the mounting plate close to the fixing plate, a cylinder for driving the clamping plate to move is fixed on the side of the mounting plate away from the fixing plate, and the main hook is located between the clamping plate and the fixing plate.

[0010] Furthermore, a stabilizing plate for pressing the top of the overhead crane is provided on the top of the clamping plate.

[0011] Furthermore, one end of the stabilizing plate is hinged to the clamping plate, and the other end of the stabilizing plate is provided with a locking bolt, which fixes the stabilizing plate and the fixing plate.

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

[0013] Maintenance workers can easily climb the main hook bracket by climbing a ladder. When the main hook bracket needs to be moved, the electric telescopic rod extends the roller out of the receiving hole, and the roller contacts the ground, making it easier to move the main hook bracket. The pneumatically driven clamping plate clamps the main hook, thereby increasing the stability of the main hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. In the drawings:

[0015] Figure 1 A three-dimensional structural diagram showing the present utility model;

[0016] Figure 2 A schematic diagram showing the support column, the receiving hole, the electric telescopic rod and the roller in the utility model;

[0017] Figure 3 A schematic diagram showing the clamping plate and the fixing plate clamping the main hook in the utility model;

[0018] Figure 4 A schematic diagram showing the stabilizing plate and locking bolts in the present invention;

[0019] Explanation of the accompanying drawings: 1. bottom frame; 2. top frame; 3. support column; 31. receiving hole; 32. roller; 33. electric telescopic rod; 4. reinforcing rod; 5. ladder; 6. support assembly; 61. first support rod; 62. second support rod; 7. clamping assembly; 71. fixing plate; 72. clamping plate; 73. mounting plate; 74. cylinder; 8. stabilizing plate; 81. locking bolt; 9. main hook. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in combination with the implementation mode and the accompanying drawings. Here, the schematic implementation mode of the utility model and its description are used to explain the utility model, but are not used as a limitation of the utility model.

[0021] Reference Figure 1 and Figure 2A main hook maintenance bracket for a crane comprises a bottom frame 1 and a top frame 2. Support columns 3 are fixedly connected between the four corners of the bottom frame 1 and the top frame 2, and reinforcing rods 4 are fixed between two adjacent support columns 3.

[0022] The bottom of the support column 3 passes through the bottom frame 1, and the lower surface of the support column 3 is flush with the lower surface of the bottom frame 1. A receiving hole 31 is provided at the bottom of each support column 3. A roller 32 and an electric telescopic rod 33 are provided in the receiving hole 31. The electric telescopic rod 33 is fixed on the hole wall of the receiving hole 31, and the roller 32 is installed on the piston rod of the electric telescopic rod 33. When the maintenance bracket needs to be moved, the electric telescopic rod 33 drives the roller 32 to extend out of the receiving hole 31, and the roller 32 contacts the ground, which facilitates the movement of the maintenance bracket. When the maintenance bracket supports the main hook 9, the roller 32 extends into the receiving hole 31, and the bottom of the support column 3 contacts the ground.

[0023] A ladder 5 is provided on the same side of the top frame 2 and the bottom frame 1 . The ladder 5 is welded and fixed to the top frame 2 and the bottom frame 1 . Maintenance workers can climb up the inspection bracket along the ladder 5 .

[0024] Four support assemblies 6 are connected to the side wall of the bottom frame 1. The support assemblies 6 include a first support rod 61 and a second support rod 62. The first support rod 61 is arranged horizontally and fixed to the side wall of the bottom frame 1. The second support rod 62 is arranged obliquely, one end of the second support rod 62 is fixed to the end of the first support rod 61 away from the bottom frame 1, and the other end of the second support rod 62 is fixed to the side wall of the support column 3. The support assembly 6 increases the overall stability of the maintenance bracket.

[0025] Reference Figure 3 and Figure 4 A clamping assembly 7 for clamping and fixing the main hook 9 is arranged above the top frame 2. The clamping assembly 7 includes a fixing plate 71, a clamping plate 72 and a mounting plate 73. The fixing plate 71 is fixed to the top of the top frame 2, the fixing plate 71 is located on the side close to the ladder 5, the mounting plate 73 is fixed to the side of the top frame 2 away from the ladder 5, and the clamping plate 72 is located between the fixing plate 71 and the mounting plate 73. A cylinder 74 is fixed to the side of the mounting plate 73 away from the fixing plate 71, and the piston rod of the cylinder 74 passes through the mounting plate 73 and is fixed to the clamping plate 72. The cylinder 74 drives the clamping plate 72 to clamp and fix the main hook 9.

[0026] A stabilizing plate 8 is provided on the top of the main hook 9, one end of which is hinged to the clamping plate 72, and a locking bolt 81 is provided on the other end of the stabilizing plate 8, which penetrates the stabilizing plate 8 and is threadedly connected to the top of the fixing plate 71. The stabilizing plate 8 can reduce the possibility of the main hook 9 shaking forward and backward.

[0027] The implementation principle of the main hook maintenance bracket of the utility model is: when the main hook 9 of the overhead crane needs to be repaired, the main hook 9 of the overhead crane is placed on the top frame 2, and then the pneumatic cylinder 74 is actuated, and the cylinder 74 drives the clamping plate 72 to move in the direction of the main hook 9, so that the main hook 9 is fixed between the clamping plate 72 and the fixing plate 71, and then the stabilizing plate 8 is rotated to make the stabilizing plate 8 press the top of the main hook 9, and the stabilizing plate 8 is fixed to the fixing plate 71 by the locking bolt 81, and finally the maintenance worker climbs up the bracket through the ladder 5 to repair the main hook 9.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A crane main hook maintenance support, comprising a bottom frame (1) and a top frame (2), wherein a plurality of support columns (3) are fixed between the bottom frame (1) and the top frame (2), characterized in that: The bottom of the support column (3) passes through the bottom frame (1), the lower surface of the support column (3) is flush with the lower surface of the bottom frame (1), the lower surface of the support column (3) is provided with a receiving hole (31), an electric telescopic rod (33) and a roller (32) are arranged in the receiving hole (31), the electric telescopic rod (33) is fixed on the hole wall of the receiving hole (31), the roller (32) is installed on the piston rod of the electric telescopic rod (33), and a ladder (5) is installed on one side of the top frame (2) and the bottom frame (1).

2. The overhead crane main hook maintenance bracket according to claim 1, characterized in that: A clamping assembly (7) for clamping and fixing the main hook (9) is provided on the top frame (2).

3. The main hook maintenance bracket of the overhead travelling crane according to claim 2, characterized in that: The clamping assembly (7) comprises a fixing plate (71) and a mounting plate (73) fixed above the top frame (2); a clamping plate (72) is arranged on a side of the mounting plate (73) close to the fixing plate (71); a cylinder (74) for driving the clamping plate (72) to move is fixed on a side of the mounting plate (73) away from the fixing plate (71); and a main hook (9) is located between the clamping plate (72) and the fixing plate (71).

4. The main hook maintenance bracket for a crane according to claim 3, characterized in that: A stabilizing plate (8) for pressing the top of the overhead crane is arranged on the top of the clamping plate (72).

5. The main hook maintenance bracket for a crane according to claim 4, characterized in that: One end of the stabilizing plate (8) is hinged to the clamping plate (72), and the other end of the stabilizing plate (8) is provided with a locking bolt (81), which fixes the stabilizing plate (8) and the fixing plate (71).

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