An auxiliary device for hot-dip galvanizing furnace area direct combustion section furnace bottom roller

Abstract

The utility model relates to an auxiliary device for hot galvanizing furnace area direct combustion section furnace bottom roll belongs to metallurgical industry equipment maintenance equipment technical field. Technical scheme is: containing support frame (1), bearing (2), U-shaped pipe card (3), nut A (5) and bolt (7), U-shaped pipe card (3) are two, two U-shaped pipe card (3) symmetry fixed in support frame (1) both ends, bearing (2) are two groups, two groups of bearings (2) are located between two U-shaped pipe card (3), the distance between two groups of bearings (2) and the size of furnace bottom roll axle cooperate with each other, each group bearing (2) is rotatably connected on a bolt (7) respectively, two bolts (7) are fixed on support frame (1) through a nut A (5) respectively. The utility model has the beneficial effects that when the bearing in direct combustion section furnace bottom roll bearing seat is damaged, the normal rotation of furnace bottom roll can be ensured, the normal production is not affected, and when parking overhauls for a long time, it is completely treated again.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for the bottom roller of the direct-fired section in a hot-dip galvanizing furnace, belonging to the technical field of equipment maintenance in the metallurgical industry. Background Technology

[0002] The bearings in the bottom roller bearing housings of the direct-fired section of the hot-dip galvanizing line in the cold rolling mill are prone to damage and abnormal rotation due to the high operating temperature. This can disrupt normal production if lubrication and inspection are not performed promptly. If the bearings in the bottom roller bearing housings of the direct-fired section are damaged and the furnace is shut down for replacement, the furnace temperature must drop below 200°C before the bottom rollers can be stopped for replacement. However, it takes at least 24 hours for the furnace temperature to drop from the normal production temperature of 1200°C to below 200°C. Even after the temperature drops to 200°C, immediately organizing personnel to replace the bearing takes at least 4 hours due to the slightly higher temperature, and there is a risk of burns to personnel. This is time-consuming, labor-intensive, and severely disrupts the normal production rhythm of hot-dip galvanizing.

[0003] Therefore, how to ensure the normal rotation of the furnace bottom roller when the bearing in the bearing housing of the direct-fired section is damaged, so as not to affect normal production, and to thoroughly repair it when there is a long-term shutdown for maintenance, is an urgent problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary device for the bottom roller of the direct-fired section of the hot-dip galvanizing furnace. When the bearing in the bearing seat of the bottom roller of the direct-fired section is damaged, it can ensure that the bottom roller rotates normally and does not affect normal production. When there is a long-term shutdown for maintenance, it can be thoroughly repaired, thus solving the problems existing in the background technology.

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

[0006] An auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace includes a support frame, bearings, U-shaped pipe clamps, nuts A, and bolts. There are two U-shaped pipe clamps, which are symmetrically fixed at both ends of the support frame. There are two sets of bearings, which are located between the two U-shaped pipe clamps. The distance between the two sets of bearings is matched with the size of the bottom roller shaft. Each set of bearings is rotatably connected to a bolt, and the two bolts are fixed to the support frame by a nut A.

[0007] Each bearing set has a positioning sleeve on the bolts on both sides that mates with the bearing.

[0008] The opening of the U-shaped tube clamp faces downwards.

[0009] Both ends of the U-shaped pipe clamp are fixed to the support frame by nuts B.

[0010] The supporting frame is a U-shaped structure.

[0011] The beneficial effects of this utility model are: when the bearing in the bearing seat of the bottom roller of the direct-fired section is damaged, it can ensure that the bottom roller rotates normally and does not affect normal production. When there is a long-term shutdown for maintenance, it can be thoroughly repaired. Attached Figure Description

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

[0013] Figure 2 A structural diagram of the supporting frame;

[0014] Figure 3 This is a schematic diagram of the structure of this utility model without U-shaped pipe clamps;

[0015] Figure 4 This is a schematic diagram of the usage state of this utility model;

[0016] In the diagram: 1. Support frame; 2. Bearing; 3. U-shaped pipe clamp; 4. Positioning sleeve; 5. Nut A; 6. Nut B; 7. Bolt; 8. Furnace bottom roller bearing seat support; 9. Furnace bottom roller; 10. Furnace bottom roller bearing seat; 11. Chain hoist; 12. Rotary joint; 13. Cooling water pipe;

[0017] 1a. Through hole A; 1b. Through hole B. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and examples.

[0019] See attached document Figure 1-4 An auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace includes a support frame 1, bearings 2, U-shaped pipe clamps 3, nuts A5, and bolts 7. There are two U-shaped pipe clamps 3, which are symmetrically fixed at both ends of the support frame 1. There are two sets of bearings 2, which are located between the two U-shaped pipe clamps 3. The distance between the two sets of bearings 2 is matched with the size of the bottom roller shaft. Each set of bearings 2 is rotatably connected to a bolt 7, and the two bolts 7 are fixed to the support frame 1 by a nut A5.

[0020] In this embodiment, reference Figure 1 The auxiliary device includes a support frame 1, a bearing 2, a U-shaped pipe clamp 3, a positioning sleeve 4, a nut A5, a nut B6, and a bolt 7. There are two sets of bearing 2, U-shaped pipe clamp 3, nut A5, and bolt 7, and four sets of positioning sleeve 4 and nut B6.

[0021] refer to Figure 2The support frame 1 has a U-shaped structure and is provided with through holes B1b and A1a. Two sets of U-shaped pipe clamps 3 are made of iron and pass through the through hole B1b of the support frame 1 respectively. They are symmetrically fixed on the support frame 1 by nuts B6.

[0022] refer to Figure 3 Two sets of bolts 7 pass through the through holes A1a of the support frame and are fixedly installed on the support frame 1 by nuts A5. Four sets of positioning sleeves 4 and two sets of bearings 2 are equally installed on the two sets of bolts 7, and the bearings 2 are located in the middle of the two sets of positioning sleeves 4. The positioning sleeves 4 and the bearings 2 are clearance fits with the bolts 7. The positioning sleeves 4 are used for axial positioning of the bearings 2 on the bolts 7.

[0023] refer to Figure 4 When the bearing in the bearing seat 10 of the bottom roller 9 in the direct-fired section is damaged and rotates abnormally, we do not need to disassemble the cooling water pipe 13 and rotary joint 12 on the bottom roller 9. We only need to use the chain hoist 11 to lift the auxiliary device, hang it in a suitable position, and then pull the chain hoist 11 until the auxiliary device lifts the shaft end of the bottom roller 9, so that the bearing of the bottom roller 9 is no longer under stress. This can ensure that the bottom roller 9 rotates normally and does not affect production. When there is a planned shutdown, roller replacement or other long-term shutdown, it can be completely restored. The device has a simple structure, is easy to use, and is safe and reliable.

Claims

1. An auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace, characterized in that: It includes a support frame (1), bearings (2), U-shaped pipe clamps (3), nuts A (5) and bolts (7). There are two U-shaped pipe clamps (3), which are symmetrically fixed at both ends of the support frame (1). There are two sets of bearings (2), which are located between the two U-shaped pipe clamps (3). The distance between the two sets of bearings (2) matches the size of the furnace bottom roller shaft. Each set of bearings (2) is rotatably connected to a bolt (7). The two bolts (7) are fixed to the support frame (1) by a nut A (5).

2. The auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace according to claim 1, characterized in that: Each bearing (2) has a positioning sleeve (4) on the bolts (7) on both sides that cooperates with the bearing (2).

3. The auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace according to claim 1, characterized in that: The opening of the U-shaped tube clamp (3) faces downward.

4. An auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace according to claim 3, characterized in that: The two ends of the U-shaped pipe clamp (3) are fixed to the support frame (1) by nuts B (6).

5. An auxiliary device for the bottom roller of the direct-fired section of a hot-dip galvanizing furnace according to claim 1, characterized in that: The supporting frame (1) is a U-shaped structure.

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