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Fixed section guide roller of continuous casting machine

A technology of fixed sections and guide rollers, which is applied in the field of steelmaking and continuous casting equipment, can solve the problems of production loss in steel plants, low efficiency of continuous casting slabs, and affecting the quality of slabs, so as to increase production, facilitate disassembly, assembly, maintenance and replacement, and increase production. the effect of time

Active Publication Date: 2015-10-14
JIANGSU LIANFENG ENERGY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The idler rollers in the fixed section of the existing continuous casting machine adopt a structure in which the roller shaft and the roller are directly welded and connected. A cooling water tank is provided on the roller shaft and cooling water is passed into it to perform internal water cooling on the roller to prevent the roller from being damaged by high temperature. The slab is baked bad, but due to the thermal expansion and contraction effect of high temperature, there is a gap between the roller shaft and the roller, resulting in water leakage, which makes the cooling water flow to the slab and affects the quality of the slab
At present, domestic manufacturers have not found an effective solution to this problem. They have to stop production frequently to maintain the rollers. This wastes both manpower and funds, and also leads to low efficiency of continuous casting billets, which brings great losses to the production of steel plants. huge loss

Method used

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  • Fixed section guide roller of continuous casting machine
  • Fixed section guide roller of continuous casting machine
  • Fixed section guide roller of continuous casting machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: as figure 1 As shown, a guide roller in the fixed section of a continuous casting machine includes a roller 2, a roller shaft 1, a rib plate 3, a bearing seat 10 and a transparent cover, and the transparent cover is divided into a first transparent cover 6 and a second transparent cover 12, Both ends of the roller shaft 1 are provided with cooling water tanks 16, and the middle part of the roller 2 is provided with a through hole, the roller shaft 1 is arranged in the through hole of the roller 2, and the roller 2 and the roller shaft 1 pass through the sleeve The rib plate 3 connected to the roller shaft 1 is welded into an integral roller, and bearing seats 10 are sleeved at both ends of the roller shaft 1, and bearings 11 are installed on the bearing seats 10, and the first transparent cover 6 and The second transparent cover 12 is fixedly installed on the bearing seat 10 through M12×110 bolts 7, M12 nuts 8 and gaskets 9 with a diameter of 12 mm. Betwee...

Embodiment 2

[0029] Embodiment 2: as Figure 1-3 And as shown in 9, as an improvement of the present invention, the roller 2 and the roller shaft 1 are made of 45# steel, which are subjected to normalizing HB210-230 treatment after rough machining, and the cooling water tank on the roller shaft 1 There is a gap reserved between 16 and the inner wall of the through hole of the roller, so as to facilitate the uniform and comprehensive cooling treatment of the roller by the cooling water. The rest of the structures and advantages are exactly the same as in Embodiment 1.

Embodiment 3

[0030] Embodiment 3: as image 3 As shown, as an improvement of the present invention, an Rc3 / 4 thread is provided at the notch of the cooling water tank of the roller shaft 1. The advantage of this thread is that it has a taper and a sealing effect, and prevents the shaft from being doubled after passing water. There is water leakage at the end; the thread size is determined according to the water flow in the roller during production. The rest of the structures and advantages are exactly the same as in Embodiment 1.

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Abstract

The invention relates to a fixed section guide roller of a continuous casting machine. The fixed section guide roller of the continuous casting machine comprises a roller body, a roll shaft, rib plates, bearing pedestals and transparent covers, wherein the transparent covers are divided into the first transparent covers and the second transparent covers; cooling water channels are formed in the two ends of the roll shaft; a through hole is formed in the middle of the roller body; the roll shaft is arranged in the through hole of the roller body; the roller body and the roll shaft are welded into an integrated roller barrel through the rib plates connected to the roll shaft in a sleeving mode; the bearing pedestals are connected to the two ends of the roll shaft in a sleeving mode; bearings are installed on the bearing pedestals; each first transparent cover and the corresponding second transparent cover are fixedly installed on the corresponding bearing pedestal through a fastener; each first transparent cover and the corresponding bearing pedestal are fixedly sealed through packing and a baffle ring; each second transparent cover and the corresponding bearing pedestal are also fixedly sealed through packing and a baffle ring; a spacer sleeve is arranged between each second transparent cover and the roll shaft; packing is arranged between each spacer sleeve and the roll shaft; threaded holes connected with rotary connectors are formed in the two ends of the roll shaft; the two ends of the roll shaft are sleeved with axial elastic retainer rings.

Description

technical field [0001] The invention belongs to the technical field of steelmaking and continuous casting equipment, in particular to a fixed section guide roller device in a continuous casting machine. Background technique [0002] In the steel continuous casting production process, the durability of the fixed section idler directly affects the efficiency of billet production. The idler rollers in the fixed section of the existing continuous casting machine adopt a structure in which the roller shaft and the roller are directly welded and connected. A cooling water tank is provided on the roller shaft and cooling water is passed into it to perform internal water cooling on the roller to prevent the roller from being damaged by high temperature. The steel slab is baked bad, but due to the thermal expansion and contraction effect of high temperature, there is a gap between the roller shaft and the roller, and water leakage occurs, which makes the cooling water flow to the ste...

Claims

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Application Information

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IPC IPC(8): B22D11/128
Inventor 刘昭宁翟兴标迟圣君
Owner JIANGSU LIANFENG ENERGY EQUIP