Steel billet conveying roller with cooling structure

Abstract

The utility model discloses a steel billet conveying roller with a cooling structure, which comprises a roller body and a roller shaft, and the roller shaft is matched with a base through a bearing seat. The device is characterized by further comprising a cooling structure, the cooling structure comprises a bearing seat cooling unit and a conveying roller cooling unit; the bearing seat cooling unit comprises a bearing seat water channel arranged in the bearing seat, and a first water inlet pipe and a first water outlet pipe are respectively communicated with two ends of the bearing seat water channel; the conveying roller cooling unit comprises a rotary joint arranged on the right side end cover and a cooling core pipe; the right end of the cooling core pipe is communicated with the inner pipe of the rotary joint, and the left end of the cooling core pipe is opened in the cavity of the left roll shaft; and a second water inlet pipe and a second water outlet pipe are arranged outside the rotary joint. According to the structure, a same-side water inlet and outlet mode is adopted, meanwhile, the bearing seats are independently cooled, and the cooling effect of the continuous casting roller is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of continuous casting machine structures in the metallurgical industry, and in particular relates to a steel billet conveying roller with a cooling structure. Background Art

[0002] In the metallurgical industry, the roller table of the slab continuous casting machine in the steel plant is composed of a large number of continuous casting rollers, which play the role of conveying red-hot steel billets. During the continuous production process, the roller body of the continuous casting roller is in contact with the high-temperature red-hot steel billet surface for a long time. The traditional continuous casting roller is a hollow water-cooled structure, with water entering on one side and water exiting on the other side. In the actual production process, the cooling effect of the bearing seat is poor. The method of water entering on one side and water exiting on the other side may cause differences in the cooling effect on both sides. At the same time, the continuous casting roller may also be affected by the water flow state inside the roller body, water pressure fluctuations, etc. The heat of the roller body cannot be discharged in time, resulting in poor cooling effect of the continuous casting roller, causing the roller to deform or get stuck, reducing the service life of the continuous casting roller, and affecting the stability of production. Utility Model Content

[0003] The utility model aims to provide a steel billet conveying roller with a cooling structure to solve the problems in the prior art.

[0004] The utility model is realized through the following technical solutions:

[0005] A billet conveying roller with a cooling structure, the billet conveying roller comprises a roller body and a roller shaft, the roller shaft is matched with a base through a bearing seat, an end cover is arranged outside the bearing seat, and a connected cavity is arranged inside the roller body and the roller shaft; the characteristic is that: it also comprises a cooling structure; the cooling structure comprises a bearing seat cooling unit and a conveying roller cooling unit;

[0006] The bearing seat cooling unit includes a bearing seat water channel arranged in the bearing seat, and a first water inlet pipe and a first water outlet pipe are respectively connected to the two ends of the bearing seat water channel; the conveyor roller cooling unit includes a rotary joint arranged on the right end cover, and a cooling core tube; the right end of the cooling core tube is connected to the inner tube of the rotary joint, and the left end of the cooling core tube opens in the cavity of the left roller shaft; a second water inlet pipe and a second water outlet pipe are arranged on the outside of the rotary joint.

[0007] Furthermore: an end cover water channel is arranged in the end cover, and two ends of the end cover water channel are connected with two ends of the bearing seat water channel through through holes respectively.

[0008] Further: the rotary joint is a two-way flow type rotary joint, including an outer tube connected to the end cover and a rotatable inner tube matched with the inner diameter of the roller shaft.

[0009] Further: the bearing seat water channel is "n"-shaped or "C"-shaped.

[0010] The beneficial effects of the utility model are:

[0011] The utility model adopts the method of water inlet and outlet on the same side, the temperature difference of the overall cooling water is small, the cooling uniformity is good, the bearing seat is cooled separately, and the cooling effect of the bearing seat is improved. At the same time, by improving the cooling form of the continuous casting roller, the influence of the water flow state and water pressure fluctuation on the cooling effect of the continuous casting roller is reduced, the cooling effect of the continuous casting roller is improved, the occurrence of failures is effectively reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the overall axial side structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the waterway position structure of the utility model;

[0015] Figure 4 yes Figure 1 Enlarged structural diagram at A in the middle.

[0016] The reference numerals are as follows:

[0017] 1-base, 2-bearing seat, 3-end cover, 4-roller, 6-bearing, 7-roller body, 8-cooling core tube, 10-rotating joint, 12-bearing seat water channel, 13-first water inlet pipe, 14-first water outlet pipe, 15-second water inlet pipe, 16-second water outlet pipe. DETAILED DESCRIPTION

[0018] like Figure 1-4 As shown, the utility model discloses a billet conveying roller with a cooling structure, the billet conveying roller comprises a roller body 7 and a roller shaft 4, the roller shaft cooperates with a base 1 through a bearing seat 2, an end cover 3 is arranged outside the bearing seat, a connected cavity is arranged inside the roller body and the roller shaft, and the roller shaft and the bearing seat are rotatably matched through a bearing 6. Its technical points are that it also includes a cooling structure; the cooling structure includes a bearing seat cooling unit and a conveying roller cooling unit; the bearing seat cooling unit includes a bearing seat waterway 12 arranged in the bearing seat, and a first water inlet pipe 13 and a first water outlet pipe 14 are respectively connected to the two ends of the bearing seat waterway;

[0019] The conveyor roller cooling unit includes a rotary joint 10 arranged on the right end cover, and a cooling core tube 8; the right end of the cooling core tube is connected to the inner tube of the rotary joint, and the left end of the cooling core tube opens into the cavity of the left roller shaft; a second water inlet pipe 15 and a second water outlet pipe 16 are arranged outside the rotary joint.

[0020] Preferably, an end cover water channel 9 is provided in the end cover, and the two ends of the end cover water channel are connected to the two ends of the bearing seat water channel through through holes. The water channel is equivalent to a cavity, and the through hole connects the cavities of the end cover water channel and the bearing seat water channel. The through hole has two parts, which are respectively located on the end cover and the bearing seat. When the end cover and the bearing seat are tightly matched, the two parts are connected to form a through hole, and the cooling water is divided into the two water channels to form cooling. The connection of the through hole can be sealed by a sealing ring to ensure the circulation of water.

[0021] Preferably, the rotary joint is an existing product, specifically a two-way flow rotary joint, that is, a rotary joint can realize water inlet and water return, which includes an outer tube that seals with the end cover and a rotatable inner tube that matches the inner diameter of the roller. Water flows from the water inlet pipe through the inner tube into the roller for circulation and then flows out through the outer tube to the water outlet pipe.

[0022] Preferably, the bearing seat water channel is in an "n" shape or a "C" shape with an opening facing downward.

[0023] Preferably: one end of the first water inlet pipe and the first water outlet pipe are respectively connected to the water channel of the bearing seat by welding or threaded connection or by an existing quick connector, and the other end is respectively connected to the main water inlet or return water pipeline. At the same time, a control valve is provided on the first water inlet pipe and the first water outlet pipe. One end of the second water inlet pipe and the second water outlet pipe are respectively connected to the return water port of the water inlet on the rotary joint, and the other end is respectively connected to the main water inlet or return water pipeline. At the same time, a control valve is also provided on the second water inlet pipe and the second water outlet pipe.

[0024] In this scheme, the description of directions such as "left" and "right" is for the convenience of explanation. Figure 1 The connection structures not described in detail in this solution are all prior art.

[0025] The working process of the utility model structure is as follows:

[0026] When cooling is required, the control valves on the first water inlet pipe and the first water outlet pipe are opened, and the cooling water enters the bearing seat water channel from the first water inlet pipe, and at the same time, enters the end cover water channel through the through hole, and is discharged from the first drain pipe after confluence, so as to cool the bearing seat and the end cover; at the same time, the control valves on the second water inlet pipe and the second water outlet pipe are opened, and the cooling water enters from the second water inlet pipe, flows into the cooling core tube through the inner tube of the rotary joint, flows out from the left opening of the cooling core tube into the inner cavity of the roller shaft, so as to cool the roller shaft, and the cooled water is discharged through the outer tube of the rotary joint and enters the second water outlet pipe.

[0027] The structure of the utility model adopts the method of water inlet and outlet on the same side, and the water inlet and water outlet play a role of heat exchange through the cooling core tube. The temperature difference of the overall cooling water is small and the cooling uniformity is good. At the same time, this scheme cools the bearing seat separately, which improves the cooling effect of the bearing seat. At the same time, the cooling form of the continuous casting roller is improved. The drain port is set on the axis, and there is always cooling water in the roller, thereby reducing the influence of the water flow state and water pressure fluctuation on the cooling effect of the continuous casting roller, improving the cooling effect of the continuous casting roller, effectively reducing the occurrence of failures, and improving production efficiency.

Claims

1. A billet conveying roller with a cooling structure, the billet conveying roller comprising a roller body and a roller shaft, the roller shaft cooperates with the base through a bearing seat, an end cover is arranged outside the bearing seat, and a connected cavity is arranged inside the roller body and the roller shaft; characterized in that: Also includes a cooling structure; The cooling structure includes a bearing seat cooling unit and a conveying roller cooling unit; The bearing seat cooling unit comprises a bearing seat water channel arranged in the bearing seat, and a first water inlet pipe and a first water outlet pipe are respectively connected to two ends of the bearing seat water channel; The conveyor roller cooling unit includes a rotary joint arranged on the right end cover, and a cooling core tube; the right end of the cooling core tube is connected to the inner tube of the rotary joint, and the left end of the cooling core tube opens into the cavity of the left roller shaft; a second water inlet pipe and a second water outlet pipe are arranged outside the rotary joint.

2. The billet conveying roller with a cooling structure according to claim 1, characterized in that: An end cover water channel is arranged in the end cover, and two ends of the end cover water channel are connected with two ends of the bearing seat water channel through through holes respectively.

3. The billet conveying roller with a cooling structure according to claim 1, characterized in that: The rotary joint is a two-way flow type rotary joint, comprising an outer tube connected to the end cover and a rotatable inner tube matched with the inner diameter of the roller shaft.

4. The billet conveying roller with a cooling structure according to claim 1, characterized in that: The bearing seat water channel is "n"-shaped or "C"-shaped.

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