Annealing furnace roller mounting tool

Abstract

The utility model discloses an annealing furnace roller mounting tool which comprises a stand column vertically mounted on a base, and a left-right through hole is formed in the stand column and used for mounting a telescopic arm. The part, extending out of the stand column, of the extension end of the telescopic arm is formed by overlapping steel pipes; during installation, the bearing seat penetrates through the telescopic arm, the roller core penetrates into the steel pipe of the telescopic arm, the carbon sleeve penetrates into the roller core, and installation of the furnace roller, the carbon sleeve and the bearing seat is completed. Due to the arrangement of the telescopic arm, during installation, the bearing seat penetrates through the telescopic arm, the roller core penetrates into the steel pipe of the telescopic arm, the carbon sleeve penetrates into the roller core, installation of the furnace roller, the carbon sleeve and the bearing seat is completed, installation efficiency is improved, and time is saved.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical equipment installation and maintenance technology, and in particular to an installation tool for annealing furnace rollers. Background Technology

[0002] The furnace roller is one of the important heating components in the annealing furnace production line. A furnace roller generally consists of a roller core and a carbon sleeve fixed to its outer side. The furnace roller typically operates at high temperatures and high speeds, causing severe wear on the outer carbon sleeve, which needs to be replaced periodically.

[0003] For example, the invention disclosed in publication number CN214115657U, entitled "An Invention of a Carbon Sleeve Bottom Roller for an Annealing Furnace," describes a carbon sleeve bottom roller comprising a roller core, a carbon sleeve, and four fixing keys. The carbon sleeve is connected to the roller core via the four fixing keys, which are connected by bolts along the roller core's axis. This design ensures a good connection between the fixing keys and the roller core, preventing damage to the carbon sleeve. Consequently, it avoids quality problems such as irregular edge ripples and creases on the strip edges caused by wear of the carbon sleeve bottom roller, ensuring smooth and stable operation of the continuous annealing unit. Furthermore, it extends the service life of the roller core, reduces spare parts repair costs, and lowers production costs.

[0004] However, in actual use, due to the heavy weight of the furnace roller, the high working temperature, and the periodic damage, and the fact that the carbon sleeve is made of graphite with weak mechanical strength, how to improve the protective performance of the carbon sleeve during installation is also one of the important problems that need to be solved. Summary of the Invention

[0005] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide a tool for mounting furnace rollers, carbon sleeves, and bearing seats in annealing furnaces that can effectively improve the protective properties of carbon sleeves during installation.

[0006] To solve the above problems, the present invention adopts the following technical solution: an annealing furnace roller installation tool, comprising a column vertically installed on a base, wherein the column is provided with a through hole for installing a telescopic arm; the extended end of the telescopic arm extending out of the column is composed of stacked steel pipes; during installation, the bearing seat is passed through the telescopic arm, the roller core is inserted into the steel pipe of the telescopic arm, and the carbon sleeve is inserted into the roller core, thereby completing the installation of the furnace roller, the carbon sleeve, and the bearing seat.

[0007] At least two columns are provided, and diagonal bracing is provided between adjacent columns.

[0008] The base is equipped with rollers at its bottom, which drive the base and the column on it to move to the designated position.

[0009] It includes a fixing mechanism, which includes a first fixing point fixed to a steel plate and a second fixing point fixed to a column, and the chain hoist is connected to the first fixing point through the second fixing point.

[0010] The telescopic arm is composed of four seamless steel pipes stacked together, with steel plates welded to the bottom of the steel pipes, and steel balls are placed between the stacked steel pipes.

[0011] The seamless steel pipe is provided with a handle hole at the end for inserting a handle, which can be used to extend or retract the seamless steel pipe by pulling the handle.

[0012] It includes a limiting ring, which is sleeved on the top of the steel pipe.

[0013] The outer edge of the chain hoist is lined with a rubber sheet.

[0014] The base is equipped with a counterweight.

[0015] A pad is provided between the base and the counterweight.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] This application incorporates a telescopic arm. During installation, the bearing housing is passed through the telescopic arm, the roller core is inserted into the steel pipe of the telescopic arm, and the carbon sleeve is inserted into the roller core, thus completing the installation of the furnace roller, carbon sleeve, and bearing housing, improving installation efficiency and saving time.

[0018] This application improves ease of use by setting the telescopic arm as a stacked structure and providing a handle hole at the end of the steel pipe. The handle is inserted into the handle hole, pushed to extend and pull into the furnace until the furnace roller is fully inside the furnace. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of this application;

[0020] Figure 2 This is a side view of an embodiment of this application;

[0021] Figure 3 This is a top view of an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of the telescopic boom assembly.

[0023] Among them, 1. Column, 2. Base, 3. Telescopic arm assembly, 4. First fixed point, 5. Wheel, 6. Diagonal brace, 7. Counterweight, 8. Pad, 9. Chain hoist, 31. First steel pipe, 32. Second steel pipe, 33. Third steel pipe, 34. Fourth steel pipe, 35. Limiting ring, 36. Handle hole, 37. Limiting indicator area, 38. Steel ball. Detailed Implementation

[0024] The technical solution of this utility model will be further described clearly and in detail below with reference to the embodiments and accompanying drawings. Example

[0025] Please see Figures 1-3A tool for installing furnace rollers, carbon sleeves, and bearings in an annealing furnace includes a column 1 vertically mounted on a base. The column 1 has a through hole for installing a telescopic arm assembly 3. The extended portion of the telescopic arm assembly 3 extending out of the column 1 is composed of stacked steel pipes. During installation, the bearing housing is passed through the telescopic arm assembly 3, the roller core is inserted into the steel pipe of the telescopic arm assembly 3, and the carbon sleeve is inserted into the roller core, thus completing the installation of the furnace roller, carbon sleeve, and bearing housing.

[0026] In some embodiments, at least two columns 1 are provided, and diagonal bracing 6 is provided between two adjacent columns 1.

[0027] The base is equipped with rollers at its bottom, which drive the base and the column 1 on it to move to the designated position.

[0028] In some embodiments, a fixing mechanism is included, which includes a first fixing point 4 fixed to the steel plate 2 and a second fixing point fixed to the column 1, wherein the chain hoist 9 is connected to the first fixing point 4 through the second fixing point.

[0029] As an example, this embodiment provides the manufacturing and usage process of the tooling. The tooling consists of 3 meters of H150X150 H-beams, 1.1 meters of Φ40*3 seamless steel pipe, 1.1 meters of Φ50*3 seamless steel pipe, 1.1 meters of Φ60*3 seamless steel pipe, 1.1 meters of Φ70*3 seamless steel pipe, 2 pieces of 300mm×800mm×5mm steel plates, 54 wheels, 3832 5mm steel balls, 9 construction chain hoists, 1 hook, and 15cm*8mm insert handle.

[0030] The production process is as follows:

[0031] A 3-meter H150X150 H-beam is cut into two sections of 1.5 meters each to form the column 1. A steel plate 2 is used as the base, which is vertically welded to the H-beam. Holes are drilled in the steel plate 2 as the first fixing point 4, and a second fixing point is set on the column 1. The first fixing point 4 and the second fixing point are reserved for the guide chain fixation. Wheels 5 are set at the four corners of the bottom of the base. Two through holes are set on the column 1 at corresponding positions. The holes are used to place the telescopic arm assembly 3.

[0032] like Figure 4As shown, the telescopic boom assembly 3 is formed by four seamless steel pipes stacked together: the first steel pipe 31 (Φ70*3 seamless steel pipe, 1.1 meter), the second steel pipe 32 (Φ60*3 seamless steel pipe, 1.1 meter), the third steel pipe 33 (Φ50*3 seamless steel pipe, 1.1 meter), and the fourth steel pipe 34 (Φ40*3 seamless steel pipe, 1.1 meter). The first steel pipe 31, the second steel pipe 32, the third steel pipe 33, and the fourth steel pipe 34 are stacked sequentially, and each steel pipe has a handle hole 36 with a diameter of 10mm at its end. A steel plate 2 is welded to the bottom of each steel pipe, and steel balls 38 are filled between the steel pipes to form a simple bearing, which is then coated with lubricating oil. Limiting rings 35 are provided at both ends of the steel pipes to limit the travel position of the steel pipes. After confirming that the telescopic boom assembly 3 has no problems with sliding and telescopic effects, it is assembled and welded to the opening position of the H-shaped steel frame.

[0033] As an example, this embodiment provides the usage process of the aforementioned tooling. A tooling for installing furnace rollers, carbon sleeves, and bearing seats in an annealing furnace, the specific usage process includes the following steps:

[0034] 1. Using two H-beams as columns 1, two Φ60 holes are made at a height of 1345mm from the base of the column 1. The holes are through the left and right sides. The telescopic arm assembly 3 is inserted into the holes of the column 1.

[0035] 2. Steel plate 2 serves as the base plate, with two 80mm long grooves opened 80mm from the edge, and the grooves are 5mm apart to form the first fixing point 4. On the upper part of the column 1, a Φ60 hole is opened 100mm from the top of the column 1 to form the second fixing point.

[0036] 3. Wheel 5 drives the base plate to the designated position, the center of the furnace roller hole is 1360mm away from the platform plate; the furnace hole diameter is 205mm, the telescopic arm group 3 is close to the center, and the furnace roller diameter is 180mm;

[0037] 4. After the position described in step 3 is determined, fix one end of the chain hoist 9 to the platform process steel structure and protect it with rubber lining; pass the other end through the second fixing point and then fix it to the first fixing point 4 on the bottom plate; in some embodiments, a counterweight 7 is added to form an anti-tipping guarantee;

[0038] In some preferred embodiments, a stabilizing fixture is provided by placing a pad block 8 at the lower end of the base plate;

[0039] 5. The worker first passes the bearing housing through the telescopic arm assembly 3, inserts the roller core into the DN40 seamless steel pipe, lifts the carbon sleeve, and inserts it into the roller core;

[0040] 6. Insert the handle into the handle hole of the fourth steel pipe 34, and pull the telescopic arm assembly 3 to extend it until the furnace roller enters the furnace. When the fourth steel pipe 34 travels to the limit indicator area 37, the red area will be exposed. Pull out the handle and insert it into the handle holes at the ends of the third steel pipe 33, the second steel pipe 32, and the first steel pipe 31 in sequence until the furnace roller is completely inserted into the furnace. Position and install the bearing seat at this end, and install the other end at the same time. Retract the telescopic arm assembly 3, remove the tooling and fix it, and proceed to the next set of installations.

[0041] Finally, it should be pointed out that the above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool for installing furnace rollers in an annealing furnace, characterized in that, The system includes a column (1) vertically mounted on a base (2), with a through hole on the column (1) for installing a telescopic arm assembly (3); the extended end of the telescopic arm assembly (3) extending out of the column (1) is composed of stacked steel pipes; the telescopic arm assembly (3) is composed of four seamless steel pipes stacked together, with steel plates welded to the bottom of the steel pipes, and steel balls (38) are placed between the stacked steel pipes; during installation, the bearing seat is passed through the telescopic arm assembly (3), the roller core is inserted into the steel pipe of the telescopic arm assembly (3), and the carbon sleeve is inserted into the roller core to complete the installation of the furnace roller, carbon sleeve and bearing seat.

2. The annealing furnace roller installation tool according to claim 1, characterized in that, At least two columns (1) are provided, and diagonal bracing (6) is provided between two adjacent columns (1).

3. The annealing furnace roller installation tool according to claim 1, characterized in that, The base (2) is equipped with wheels (5) at the bottom, which drive the base (2) and the column (1) on it to move to the designated position.

4. The annealing furnace roller installation tool according to claim 1, characterized in that, The device includes a fixing mechanism, which includes a first fixing point (4) fixed to a steel plate and a second fixing point fixed to a column (1). The chain hoist (9) is connected to the first fixing point (4) through the second fixing point.

5. The annealing furnace roller installation tool according to claim 1, characterized in that, The seamless steel pipe is provided with a handle hole (36) at the end for inserting a handle, which can be used to extend or retract the seamless steel pipe by pulling the handle.

6. The annealing furnace roller installation tool according to claim 1, characterized in that, Includes a limiting ring (35), which is sleeved on the top of the steel pipe.

7. The annealing furnace roller installation tool according to claim 4, characterized in that, The outer edge of the chain hoist (9) is lined with rubber.

8. The annealing furnace roller installation tool according to claim 1, characterized in that, The base (2) is provided with a counterweight (7).

9. The annealing furnace roller installation tool according to claim 8, characterized in that, A pad (8) is provided between the base (2) and the counterweight (7).

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