Roller fixing device for rough and medium rolling of high-speed wire rod

Abstract

The utility model discloses a high-speed wire rod rough and medium rolling roller fixing device, and relates to the technical field of roller fixing. The device comprises a roller and a cardan shaft, a shaft head of the roller is sleeved with a flat head of the cardan shaft, a plurality of positioning grooves are formed in the shaft head of the roller, limiting holes are formed in the positions, corresponding to the positioning grooves in the shaft head of the roller, of the flat head of the cardan shaft, and threaded jackscrews are installed in the limiting holes in a matched mode. One end of the threaded jackscrew penetrates through the limiting hole and then abuts against the interior of the positioning groove. The device is simple in structure and convenient to install, the roller and the cardan shaft are limited through the threaded jackscrews, disassembly is convenient, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of roller fixing, in particular to a high-speed wire roughing and intermediate rolling roller fixing device. Background Art

[0002] There are a total of 14 roughing and medium rolling mill equipment sets, of which 7 sets have the roughing and medium rolling horizontal rollers horizontally connected to the universal shaft. There is a risk of detachment during rotation. Now 50mm*70mm*6mm welding pieces are used to weld and fix the positioning rings of the roughing and medium rolling horizontal rollers and the flat head sleeve of the universal shaft. The welding operation is not only time-consuming and labor-intensive, but also easy to cause scalds, arc burns and other injuries to the operators due to the small working environment. Utility Model Content

[0003] In view of the above technical problems, the utility model provides a high-speed wire roughing and intermediate rolling roller fixing device, which is used to solve the problem that the roughing and intermediate rolling horizontal rollers are fixed to the universal shaft through a welding process, the welding process is time-consuming and labor-intensive, and the disassembly after welding is inconvenient.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A high-speed wire roughing and medium rolling roller fixing device, the utility model comprises a roller and a universal shaft, the shaft head of the roller is sleeved in the flat head of the universal shaft, a plurality of positioning grooves are provided on the shaft head of the roller, and a limiting hole is provided on the flat head of the universal shaft corresponding to the position of the positioning groove on the shaft head of the roller, a threaded top screw is installed in the limiting hole, and one end of the threaded top screw passes through the limiting hole and abuts against the positioning groove.

[0006] After the threaded top screw is installed, roller bearing grease is applied around the threaded top screw.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: by modifying the connection and fixing method of the flat head and the rolling roller, the original welding fixation using welding sheets is changed to threaded top screw fixation, and when changing the roller, only the top screw needs to be disassembled and assembled, and there is no need to weld and fix the positioning ring and the flat head sleeve, which greatly saves the disassembly and installation time before and after changing the roller, and fundamentally eliminates the dangerous factors such as scalds and arc burns caused by cutting and welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the utility model;

[0009] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model at AA.

[0010] In the attached figure:

[0011] 1. Universal joint; 2. Roller; 3. Positioning groove; 4. Limiting hole; 5. Threaded top screw. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0013] A high-speed wire roughing and medium rolling roller fixing device comprises a roller 2 and a universal shaft 1. The shaft head of the roller 2 is sleeved in the flat head of the universal shaft 1. A plurality of positioning grooves 3 are provided on the shaft head of the roller 2. A limiting hole 4 is provided on the flat head of the universal shaft 1 corresponding to the position of the positioning groove 3 on the shaft head of the roller 2. A threaded top screw 5 is installed in the limiting hole 4. One end of the threaded top screw 5 passes through the limiting hole 4 and abuts against the positioning groove 3.

[0014] After the threaded top screw 5 is installed, the roller 2 bearing grease is applied around it.

[0015] Embodiment 1,

[0016] Two positioning grooves 3 with a length of 36 mm are symmetrically arranged at a position 189.50 mm from the end of the roller 2, and a limiting hole 4 is provided on the flat head of the universal shaft 1 at a position 189.50 mm from the end of the universal shaft 1, which is deflected 30° in the vertical direction. A threaded top screw 5 is installed in the limiting hole 4, and one end of the threaded top screw 5 is abutted against the positioning groove 3 after passing through the limiting hole 4. A positioning groove 3 is made on the roller 2 itself to control the relative position of the flat head and the roller 2 after installation, improve the flat head structure of the rolling mill, and ensure that it can perfectly match the roller 2. By transforming the connection and fixing method of the flat head and the roller 2, the original welding fixation using a welding sheet is changed to fixing with a threaded top screw 5. When changing the roller, only the top screw is disassembled and assembled, and there is no need to weld and fix the positioning ring and the flat head sleeve, which greatly saves the disassembly and installation time before and after changing the roller, and fundamentally eliminates the dangerous factors such as scalds and arc burns caused by cutting and welding operations.

[0017] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed wire rod roughing and intermediate rolling roller fixing device, comprising a roller (2) and a universal shaft (1), wherein the shaft head of the roller (2) is sleeved in the flat head of the universal shaft (1), characterized in that: A plurality of positioning grooves (3) are provided on the shaft head of the rolling roller (2); a limiting hole (4) is provided on the flat head of the universal shaft (1) at a position corresponding to the positioning grooves (3) on the shaft head of the rolling roller (2); a threaded top screw (5) is installed in the limiting hole (4); one end of the threaded top screw (5) passes through the limiting hole (4) and abuts against the positioning groove (3).

2. The high-speed wire rod roughing and intermediate rolling roller fixing device according to claim 1 is characterized in that: After the threaded top screw (5) is installed, the roller (2) bearing grease is applied around the threaded top screw (5).

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