A high temperature workpiece conveying supporting roller for a bar and wire rod rolling mill

Abstract

The utility model relates to a kind of steel roller of rod wire mill conveying high-temperature rolled piece, belong to metallurgical industry rod wire rolling production equipment technical field.The technical scheme is: including guide roller (1), roll shaft (2), gland (3), bearing seat (4), bottom plate (5) and bearing (7), the roll face of guide roller (1) is the concave surface structure of small middle diameter, large diameter of two ends, the both ends of guide roller (1) are respectively equipped with roll shaft (2), the roll shaft (2) is integrated with guide roller (1), roll shaft (2) is rotatably connected on bearing seat (4) by bearing (7), bearing (7) outside is equipped with gland (3), bearing seat (4) is fixed on bottom plate (5).The utility model has the beneficial effects that: the steel roller bearing uses dry oil lubrication, reduces oil gas consumption, does not need to use water cooling bearing, reduces the rust of bearing.Can guarantee the rolling friction between the steel roller roll face and rolled piece, avoid scratching rolled piece surface, improve product surface quality.

Description

Technical Field

[0001] This utility model relates to a steel support roller for conveying high-temperature rolled products in a bar and wire rod rolling mill, belonging to the technical field of bar and wire rod rolling production equipment in the metallurgical industry. Background Technology

[0002] In the production of bar and wire rod, the steel billet is heated and then enters the rolling line for rolling. The initial rolling temperature is usually between 920-1100℃. Due to the high temperature, a large amount of water is needed to cool the rolling mill, rolls and roller conveyor during the rolling process. At the same time, high requirements are also placed on the lubrication and protection of the bearings and other parts of the equipment itself.

[0003] After the No. 16 rolling mill, the rolling line is equipped with support rollers. The roller surface and the roller shaft are connected by bearings. As the workpiece passes over it, the support roller rotates by rotating the bearings between it and the shaft, which drives the workpiece forward and plays a guiding role. The bearings are lubricated by oil and air.

[0004] When conveying high-temperature rolled workpieces, the steel support rollers of this structure operate in a harsh environment. The bearings are located close to the workpieces, subjecting them to temperatures of approximately 900-1000°C and subjected to long-term impact / scouring from internal cooling water or external rolling mill water. This makes them highly susceptible to lubrication failure and bearing burnout, preventing the steel support rollers from rotating properly. Consequently, the rolling friction between the roller surface and the workpiece transforms into sliding friction, causing scratches on the workpiece surface. This is particularly problematic for high-speed wire rods in special steel production, where surface quality requirements are extremely stringent. The shift from rolling friction to sliding friction has a very negative impact on the final surface quality and process control of the wire rods. Utility Model Content

[0005] The purpose of this invention is to provide a support roller for conveying high-temperature rolled products in a bar and wire rod mill, which can ensure rolling friction between the roller surface and the rolled product, avoid scratching the surface of the rolled product, and solve the problems existing in the background art.

[0006] The technical solution of this utility model is:

[0007] A steel support roller for conveying high-temperature rolled products in a bar and wire rod mill includes a guide roller, a roller shaft, a pressure cap, a bearing seat, a base plate, and bearings. The roller surface of the guide roller has a concave structure with a small diameter in the middle and a large diameter at both ends. Roller shafts are respectively provided at both ends of the guide roller. The roller shafts are integral with the guide rollers. The roller shafts are rotatably connected to the bearing seat through bearings. A pressure cap is provided on the outside of the bearings. The bearing seat is fixed on the base plate.

[0008] The size of the concave surface of the guide roller is matched with the workpiece.

[0009] The gland is fixed to the bearing housing by gland bolts.

[0010] The bearing housing is fixed to the base plate by base bolts and base nuts.

[0011] The beneficial effects of this utility model are as follows: the steel support roller bearing can use dry oil lubrication, eliminating the need for oil-air lubrication, thus reducing oil and air consumption. Furthermore, by keeping the bearing away from the high-temperature workpiece via the roller shaft, water cooling is unnecessary, reducing bearing corrosion. The bearing's service life is significantly extended, effectively ensuring the guide roller can rotate freely and normally when the workpiece passes through. The roller surface adopts a concave structure and has rolling contact with the workpiece, effectively reducing surface scratches and quality defects caused by sliding friction, improving product surface quality. This steel support roller does not require an additional motor, reducing electrical energy consumption. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is the left view of the present invention;

[0014] Figure 3 This is a top view of the present invention;

[0015] In the diagram: 1. Guide roller; 2. Roller shaft; 3. Pressure cap; 4. Bearing seat; 5. Base plate; 6. Pad plate; 7. Bearing; 8. Pressure cap bolt; 9. Base bolt; 10. Base nut. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and examples.

[0017] See attached document Figure 1-3 A steel support roller for conveying high-temperature rolled products in a bar and wire rod rolling mill includes a guide roller 1, a roller shaft 2, a pressure cover 3, a bearing seat 4, a base plate 5, and a bearing 7. The roller surface of the guide roller 1 is a concave structure with a small diameter in the middle and a large diameter at both ends. Roller shafts 2 are respectively provided at both ends of the guide roller 1. The roller shafts 2 are integral with the guide roller 1. The roller shafts 2 are rotatably connected to the bearing seat 4 through the bearing 7. A pressure cover 3 is provided on the outside of the bearing 7. The bearing seat 4 is fixed on the base plate 5.

[0018] In this embodiment, refer to the appendix Figure 1-3 The size of the concave surface of the guide roller 1 matches the workpiece, facilitating the guidance of the high-temperature workpiece. The two ends of the guide roller 1 are integrally formed with the roller shaft 2, without bearings between them. The roller shaft 2 is supported by the bearing seats 4 at both ends and the bearings 7 on them. The two ends are fixed and allowed to rotate freely by the bearings 7 respectively. The outer side of the bearings 7 is sealed and protected by the pressure caps 3 respectively. The bearing seats 4 are firmly fixed to the base plate 5 by the base bolts 9 and the base nuts 10 according to the structure shown in the figure. The pad 6 is installed between the base bolts 9 and the base plate 5.

[0019] When the high-temperature rolled workpiece passes through the guide roller 1, it undergoes rolling friction, eliminating the need for a motor. The bearing 7 can be used for rotation, reducing surface scratches. Because the extended roller shaft 2 keeps the bearing 7 away from the high-temperature workpiece, it can use dry oil lubrication, reducing production costs and minimizing environmental pollution from oil vapor emissions. Furthermore, being away from the red-hot steel, the bearing does not require water cooling, reducing corrosion and preventing wear, thus significantly lowering production costs.

Claims

1. A support roll for conveying high-temperature rolled products in a bar and wire rod rolling mill, characterized in that: It includes a guide roller (1), a roller shaft (2), a pressure cap (3), a bearing seat (4), a base plate (5), and a bearing (7). The roller surface of the guide roller (1) is a concave structure with a small diameter in the middle and a large diameter at both ends. The two ends of the guide roller (1) are respectively provided with roller shafts (2). The roller shafts (2) are integrated with the guide roller (1). The roller shafts (2) are rotatably connected to the bearing seat (4) through the bearing (7). The bearing (7) is provided with a pressure cap (3) on the outside. The bearing seat (4) is fixed on the base plate (5).

2. The steel support roll for conveying high-temperature rolled products in a bar and wire rod mill according to claim 1, characterized in that: The size of the concave surface of the guide roller (1) is matched with that of the rolled piece.

3. The steel support roll for conveying high-temperature rolled products in a bar and wire rod rolling mill according to claim 1, characterized in that: The pressure cap (3) is fixed to the bearing seat (4) by pressure cap bolts (8).

4. A support roller for conveying high-temperature rolled products in a bar and wire rod mill according to claim 1, characterized in that: The bearing housing (4) is fixed to the base plate (5) by the base bolt (9) and the base nut (10).

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