Water-cooling back-up roll for withdrawal and straightening machine

Abstract

A water-cooling back-up roll for a withdrawal and straightening machine comprises a back-up roll, the back-up roll comprises a shaft body and a roll body which are fixed together, the two ends of the shaft body are connected with a shaft seat through bearings, an annular space between the shaft body and the roll body is a water storage cavity, a plurality of water return channels are formed in the end face of the roll body, and a hollow part of the shaft body is a water flowing channel. A plurality of water diversion channels are arranged in the radial direction of the shaft body and enable the water flowing channels to be communicated with the water storage cavity, and the water return channels enable the water storage cavity to be communicated with the outside. Compared with the prior art, the utility model has the technical effects that only one water channel is arranged in the roll shaft, and the water channel can be made to be thicker, so that the water passing efficiency is higher.

Description

Technical Field

[0001] This utility model belongs to the technical field of tension leveling machines, specifically relating to a water-cooled support roller for tension leveling machines. Background Technology

[0002] On the continuous casting production line of a steelmaking plant, the billet needs to be shaped into a billet that meets the requirements under the traction and straightening action of a straightening machine. The straightening support roller is an important component of the straightening machine. It is a free roller of the straightening machine. The straightening machine drive roller works in conjunction with the straightening support roller to complete functions such as transmitting torque, pulling out and extruding the billet, and conveying the dummy bar.

[0003] Technical problem: The support roller is in continuous contact with the high temperature of the cast billet and needs to be cooled by water. Currently, there are two water channels in the roller shaft, one is the water inlet pipe and the other is the water return pipe, which results in low water flow efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to design a water-cooled support roller for a tension leveling machine with high water flow efficiency.

[0005] The specific technical solution of this utility model is as follows:

[0006] A water-cooled support roller is provided for a tension leveling machine. The support roller includes a shaft and a roller body fixed together. Both ends of the shaft are connected to a bearing seat. The annular space between the shaft and the roller body is a water storage cavity. Multiple return water channels are provided on the end face of the roller body. The hollow part of the shaft is a water flow channel. One end of the water flow channel is connected to a water inlet through a rotary seal. Multiple branch water channels are provided in the radial direction of the shaft body. The branch water channels connect the water flow channel to the water storage cavity, and the return water channels connect the water storage cavity to the outside.

[0007] The return water channels are divided into two groups, and each group of return water channels is located in a spatial plane perpendicular to the axis.

[0008] The roller body has return water channels on both end faces.

[0009] Compared with the prior art, the technical effect of this utility model is that the roller shaft of this utility model has only one water channel, and the water channel can be made relatively thick, resulting in higher water flow efficiency. Attached Figure Description

[0010] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0011] Figure 2 This is a three-dimensional schematic diagram of the present invention. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0013] like Figure 1-2 A water-cooled support roller is provided for a tension leveling machine. The support roller includes a shaft 20 and a roller body 30 fixed together. Both ends of the shaft 20 are connected to the bearing 11 of the bearing seat 10.

[0014] The annular space between the shaft 22 and the roller 30 is a water storage cavity 31. Multiple return water channels 32 are provided on the end face of the roller 30. The hollow part of the shaft 22 is a water flow channel 21. One end of the water flow channel 21 is connected to the water inlet 22 through a rotary seal. Multiple branch water channels 23 are provided in the radial direction of the shaft 22. The branch water channels 23 connect the water flow channel 21 with the water storage cavity 31. The return water channels 32 connect the water storage cavity 31 with the outside.

[0015] In order to make the cold water distribution more uniform, the return water channel 32 is divided into two groups, and each group of return water channels 32 is located in a spatial plane perpendicular to the axis 20.

[0016] To make the cold water distribution more uniform, return water channels 32 are provided on both end faces of the roller body 30.

[0017] Its working principle is as follows:

[0018] When the support roller is working, the inlet 22 is connected to the outlet of the water pump. Cold water enters the flow channel 21 from the inlet 22, and then enters the water storage chamber 31 from the branch channel 23 to buffer and cool the roller body 30. Then, it flows out to the outside of the roller body 30 from the return water channel 32. This water can directly cool the outer surface of the roller body 30, and the cooling effect is good.

[0019] Features of this application:

[0020] S1. The roller shaft of this utility model has only one water channel. The water channel can be made relatively thick, resulting in higher water flow efficiency and better cooling effect.

[0021] S2. The water buffered in the water storage chamber can stay for a longer period of time, resulting in a longer cooling time and a better cooling effect.

[0022] S3. The water flowing from the return water channel 32 to the outside of the roller body 30 can directly cool the outer surface of the roller body 30, and the cooling effect is good.

[0023] For other details, please refer to the existing technology.

[0024] 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 water-cooled support roller for a tension leveling machine, comprising a support roller, the support roller comprising a shaft (20) and a roller body (30) fixed together, both ends of the shaft (20) being connected to a bearing seat (10) via bearings (11), characterized in that: The annular space between the shaft (20) and the roller (30) is a water storage cavity (31). Multiple return water channels (32) are provided on the end face of the roller (30). The hollow part of the shaft (20) is a water channel (21). One end of the water channel (21) is connected to the water inlet (22) through a rotary seal. Multiple branch water channels (23) are provided in the radial direction of the shaft (20). The branch water channels (23) connect the water channel (21) with the water storage cavity (31). The return water channels (32) connect the water storage cavity (31) with the outside.

2. The tension leveling machine as described in claim 1 uses water-cooled support rollers, characterized in that: The return water channel (32) is divided into two groups, and each group of return water channels (32) is located in a spatial plane perpendicular to the axis (20).

3. The tension leveling machine as described in claim 2 uses water-cooled support rollers, characterized in that: The roller body (30) has a return water channel (32) on both end faces.

Images