A roundness-stable reel

Abstract

The utility model discloses a kind of roundness stable reel, including reel body, at least one annular reinforcing rib is arranged in reel body, cross brace is provided in the inner wall of reel body middle part, and cross brace is taut on the inner wall of reel body.The utility model sets up annular reinforcing rib in the inner wall of large diameter or super-large diameter reel, can avoid the deformation of the large diameter or super-large diameter reel that is processed in storage or in the process of transshipment, guarantee the roundness of reel.Spare reel roundness process, substantially reduce maintenance cost.The utility model structure is simple, only need to be welded annular reinforcing rib in the inner wall of existing reel, and the purpose of stable reel roundness can be realized, convenient operation.Due to the setting of reinforcing rib, complex roundness process is saved, and production cost is substantially saved.

Description

Technical Field

[0001] This utility model relates to the drum of a crane lifting mechanism, specifically to a large-diameter or extra-large-diameter drum with high roundness stability. Background Technology

[0002] Currently, with the development of market demand, the demand for crane tonnage is increasing, and correspondingly, the diameter of the crane lifting mechanism drum is also increasing. For large-diameter drums, significant differences in roundness between the drum and the drum connecting flange can occur during transportation and storage. During use, the deformed drum needs to be placed on a roller frame, and the diagonal dimensions of the inner hole of drum flange 1 (both horizontal and vertical) need to be measured. The roller frame is then rotated 90 degrees, and the diagonal dimensions of the inner hole of drum flange 1 are measured again. The dimensions are compared before and after. If the difference is large, the roller frame is rotated 90 degrees and left to stand for a period of time before measuring again. The minimum diameter of the inner hole of drum flange number 1 is determined through these measurements. At this point, a cross jack is used near drum flange number 1 to round it again, ensuring that both sets of jacks are perpendicular when rounding. During the rounding process, the dimensions of the inner hole of drum flange 1 need to be measured multiple times to adjust the jack height. This rounding method is time-consuming and labor-intensive, increasing construction costs. Summary of the Invention

[0003] To solve the above problems, this utility model provides a roll with stable roundness. For rolls with large diameter or larger diameter, annular reinforcing ribs are provided on the inner wall of the roll body, which can prevent deformation caused by changes in the roundness of different parts of the processed roll during transportation or storage.

[0004] The objective of this utility model is achieved through the following means: A roundness-stable drum includes a drum body, with at least one annular reinforcing rib provided inside the drum body, and a cross brace provided on the inner wall of the middle part of the drum body, the cross brace being tensioned on the inner wall of the drum body.

[0005] In the aforementioned roundness-stable roll, the annular reinforcing ribs are two or three evenly arranged on the inner wall of the roll body.

[0006] The aforementioned roundness-stable drum has an annular reinforcing rib welded to the inner wall of the drum body.

[0007] The aforementioned roundness-stable drum has its cross brace welded to the inner wall of the drum body at its end.

[0008] Compared with the prior art, the present invention has the following technical effects: This invention features annular reinforcing ribs on the inner wall of large-diameter or extra-large-diameter drums, preventing deformation during storage or transport and ensuring the drum's roundness. It eliminates the need for drum rounding procedures, significantly reducing maintenance costs. Furthermore, the invention has a simple structure; simply welding annular reinforcing ribs to the existing inner wall of the drum achieves stable roundness, making operation convenient. The addition of reinforcing ribs eliminates the need for complex rounding procedures, greatly reducing production costs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 for Figure 1 AA view. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0012] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0013] The specific structure of this utility model is combined with the appendix. Figure 1 and Figure 2 Describe it in detail.

[0014] like Figure 1 and Figure 2 As shown, a roundness-stable reel includes a reel body 3. At least one annular reinforcing rib 2 is provided within the reel body. The reinforcing rib serves to maintain the roundness of the reel during transport or storage, preventing deformation. A cross brace is provided on the inner wall of the reel body in the middle section. The cross brace is tensioned on the inner wall 4 of the reel body. The cross brace further serves to maintain the roundness of the reel during transport or storage, preventing deformation.

[0015] The roundness-stable drum of this utility model has two or three annular reinforcing ribs evenly arranged on the inner wall of the drum body. One annular reinforcing rib is located near the flange 1 end of the drum, and the other annular reinforcing ribs are evenly arranged on the inner wall of the drum body.

[0016] The circularity-stable drum of this invention has an annular reinforcing rib welded to the inner wall of the drum body for easy operation.

[0017] The roundness-stable drum of this utility model has its cross brace welded to the inner wall of the drum body at its end.

[0018] This invention only requires welding annular reinforcing ribs and cross braces to the inner wall of existing large-diameter or extra-large-diameter drums, which can maintain the roundness of the flange end and other parts of the drum, eliminating the need for rounding procedures, greatly reducing maintenance costs, and thus significantly saving production costs.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present utility model, and these should also be considered within the protection scope of the present utility model.

Claims

1. A roundness-stable reel comprising a reel body (3), characterised in that: At least one annular reinforcing rib (2) is provided inside the drum body, and a cross brace (4) is provided on the inner wall of the middle part of the drum body. The cross brace is stretched and tightened on the inner wall of the drum body.

2. The roundness-stable drum according to claim 1, characterized in that: The annular reinforcing ribs are two or three evenly arranged on the inner wall of the roll body.

3. The roundness-stable drum according to claim 2, characterized in that: The annular reinforcing rib is welded to the inner wall of the roll body.

4. The roundness-stable drum according to claim 3, characterized in that: The ends of the cross brace are welded to the inner wall of the roll body.

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