Roll changing device for a leveler

Abstract

This utility model discloses a roller changing device for a leveling machine, including a roller changing assembly one and a roller changing assembly two. Roller changing assembly one includes a suspension beam and a support roller upper frame. The suspension beam is placed on a crossbeam inside the leveling machine, and the support roller upper frame is placed on a lower support roller. Roller changing assembly two includes a track and a moving trolley. The track is located outside the leveling machine's entrance, and the wheels of the moving trolley are located on the track. This utility model is suitable for changing rollers inside and at the entrance of a leveling machine; it is simple, convenient, and highly practical.

Description

Technical Field

[0001] This utility model relates to the field of leveling machine maintenance, and more specifically, to a roller changing device for leveling machines. Background Technology

[0002] Currently, in the cold rolling continuous annealing production line, the rollers inside the leveling mill need to be replaced and maintained regularly. Due to the design of the production line, the rolling mill rollers, tension rollers, and anti-wrinkle rollers (hereinafter referred to as "rollers") of the leveling mill cannot be replaced using the equipment's built-in roller changing trolley. The rollers have diameters of 500mm and 350mm, and a length of 2300mm; traditional disassembly requires the use of a hand-operated hoist and an overhead crane for transport. Problems exist: 1. There are significant safety hazards for maintenance personnel disassembling and removing them from the line, potentially leading to tilting and lifting by the overhead crane, which could easily cause an accident. 2. High labor input, long construction period, and heavy workload. 3. The space inside the leveling mill and at the leveling mill entrance is small, making it impossible to use a crane. Furthermore, the tension rollers and anti-wrinkle rollers inside the leveling mill are currently located above and to the side of the support rollers. If the tension rollers and anti-wrinkle rollers are placed directly on the support rollers, they will roll off and cannot be removed. Also, removing them directly from the leveling mill using a crane would increase the replacement time. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a roller changing device for a leveling machine, which is suitable for changing rollers inside the leveling machine and at the inlet. It is simple and convenient to operate and construct, and has strong practicality.

[0004] The present invention adopts the following technical solution:

[0005] A roller changing device for a leveling machine includes roller changing assembly one and roller changing assembly two, wherein:

[0006] The roller changing assembly includes a suspension beam and a support roller upper frame. The suspension beam is placed on a crossbeam inside the leveling machine, and the support roller upper frame is placed on the support roller below.

[0007] The roller changing assembly 2 includes a track and a moving trolley. The track is located outside the entrance of the leveling machine, and the wheels of the moving trolley are located on the track.

[0008] Furthermore, the lifting beam includes a beam body and lifting lugs. The lifting lugs are installed at the middle of the lower end of the beam body, and a lifting hole is provided in the middle of the lifting lugs. Limiting plates are installed on both sides of the beam body. The beam body is placed on the crossbeam inside the leveling machine, and the two limiting plates are located on both sides of the crossbeam.

[0009] Furthermore, the upper frame of the support roller includes two longitudinal beams, two transverse beams, and four uprights. The ends of the two longitudinal beams and two transverse beams are connected. The uprights are installed at the lower end of the connection between the longitudinal beams and the transverse beams. The uprights are placed on the bearing seats on both sides of the support roller. The inner side of the lower end of the uprights is in contact with the upper surface of the support roller.

[0010] Furthermore, the two longitudinal beams are I-beams, while the crossbeam and column are both channel steel, and two reinforcing plates are installed between the two longitudinal beams.

[0011] Furthermore, the mobile vehicle includes a body and wheels, with the wheels mounted on both sides of the body.

[0012] Furthermore, there are two tracks, and a limiting device is provided above the end of each track. The length of the limiting device is greater than the distance between the outer sides of the two tracks. Fixing rods are installed on both sides of the limiting device, and the fixing rods are fixedly connected to the platform at the lower end.

[0013] Furthermore, the limiting device is made of channel steel.

[0014] Beneficial effects

[0015] This invention utilizes the lifting beam of the roller changing assembly one to suspend the rollers to be removed and replaced, and then places the upper frame of the support roller on the support roller. In this way, when the roller is lowered, the roller will not come into contact with the support roller below, thus avoiding affecting the support roller. At the same time, the support roller can drive the upper roller to move, realizing the entry and exit of the balancing machine. Meanwhile, the roller changing assembly two is used to remove and install the roller at the exit, which can replace the roller in spaces where a crane cannot be used, thus improving the replacement efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the roller changing mechanism for a balancing machine.

[0017] Figure 2 This is a schematic diagram of the lifting beam of this utility model;

[0018] Figure 3 This is a schematic diagram of the lifting beam of this utility model from another perspective;

[0019] Figure 4 This is a schematic diagram of the upper frame of the support roller of this utility model;

[0020] Figure 5 This is a schematic diagram of the upper frame of the support roller of this utility model from another perspective;

[0021] Figure 6 This is a schematic diagram of the second roller changing assembly of this utility model;

[0022] Figure 7 This is a schematic diagram of the mobile trolley of this utility model;

[0023] Figure 8This is a schematic diagram of the mobile trolley of this utility model from another perspective;

[0024] Figure 9 This is a schematic diagram of the track portion of this utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] As shown in the figure, the current position of leveling machine 1 on production line 2 is as follows: Figure 1 As shown, the support roller 3 is located inside the leveling machine 1. The rolling mill roller, tension roller, anti-wrinkle roller 4, etc., located inside the leveling machine 1 are located at the upper end of the support roller 3. Tension rollers are also provided on the outside of the leveling machine 1.

[0027] This utility model discloses a roller changing device for a leveling machine, comprising a roller changing assembly one and a roller changing assembly two, wherein:

[0028] The roller changing assembly includes a suspension beam and a support roller upper frame. The suspension beam is placed on the crossbeam inside the leveling machine, and the support roller upper frame is placed on the support roller 3 below.

[0029] The roller changing assembly 2 includes a track 5 and a moving trolley 6. The track 5 is located outside the entrance of the leveling machine 1, and the wheels 61 of the moving trolley 6 are located on the track 5.

[0030] When replacing the rollers inside the balancing machine 1, first place the upper frame of the support roller on the support roller 3 for disassembly. Place the lifting beam on the crossbeam inside the balancing machine 1, then suspend a hand-operated hoist from the lifting lug 8 of the lifting beam. Remove the fixing bolts of the roller, use the hand-operated hoist to lift the roller out and place it on the upper frame of the support roller, and use a hydraulic cylinder to pull out the support roller. This removes the upper frame of the support roller and the roller from the balancing machine. Reassembly is the reverse process. This invention utilizes the lifting beam and the upper frame of the support roller to remove the rollers from the balancing machine 1 without the need for a crane, enabling roller removal in confined spaces and shortening the removal time.

[0031] In one embodiment of this utility model, the lifting beam includes a beam body 7 and lifting lugs 8. The lifting lugs 8 are installed at the middle of the lower end of the beam body 7, and a lifting hole 81 is provided in the middle of the lifting lugs 8. Limiting plates 9 are installed on both sides of the beam body 7. The beam body 7 is placed on the crossbeam inside the leveling machine 1, and the two limiting plates 9 are located on both sides of the crossbeam. The two limiting plates 9 limit the beam body 7 to prevent it from moving and ensure safety.

[0032] In one embodiment of this utility model, the upper frame of the support roller includes two longitudinal beams 10, two transverse beams 11, and four uprights 12. The ends of the two longitudinal beams 10 and the two transverse beams 11 are connected. The uprights 12 are installed at the lower end of the connection between the longitudinal beams 10 and the transverse beams 11. The uprights 12 are placed on bearing seats on both sides of the support roller 3, with the top of the bearing seats lower than the top of the support roller 3. The inner side of the lower end of the uprights 12 is in contact with the upper surface of the support roller 3. The roller can only fall on the two longitudinal beams 10 and the two transverse beams 11, avoiding direct contact between the roller and the support roller 3 and protecting the surface of the roller. At the same time, it prevents the roller from rolling on the support roller 3, making it easy to remove the roller.

[0033] In one embodiment of this utility model, the two longitudinal beams 10 are I-beams, the crossbeam 11 and the column 12 are channel steel, and two reinforcing plates 13 are installed between the two longitudinal beams 10. The reinforcing plates 13 serve to strengthen the two longitudinal beams 10.

[0034] In one embodiment of the present invention, the mobile trolley includes a body 62 and wheels 61, with the wheels 61 mounted on both sides of the body 62.

[0035] In one embodiment of this utility model, two tracks 5 are provided, and a limiting device 14 is provided above the end of each track 5. The length of the limiting device 14 is greater than the distance between the outer sides of the two tracks 5. Fixing rods 15 are installed on both sides of the limiting device 14, and the fixing rods 15 are fixedly connected to the lower platform. Since the track 5 is very long, the lower end of the track 5 is not fixed to the platform. During use, the limiting device 14 prevents one end from tilting up due to the pressure of the moving trolley.

[0036] In one embodiment of this utility model, the limiting device is a channel steel.

[0037] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. Roll changing device for a leveler, characterized in that: It includes roller changing assembly one and roller changing assembly two, wherein: The roller changing assembly includes a suspension beam and a support roller upper frame. The suspension beam is placed on a crossbeam inside the leveling machine, and the support roller upper frame is placed on the support roller below. The roller changing assembly 2 includes a track and a moving trolley. The track is located outside the entrance of the leveling machine, and the wheels of the moving trolley are located on the track.

2. The roller changing device for a leveling machine according to claim 1, characterized in that: The lifting beam consists of a beam body and lifting lugs. The lifting lugs are installed at the middle of the lower end of the beam body, and there is a lifting hole in the middle of the lifting lugs. Limiting plates are installed on both sides of the beam body. The beam body is placed on the crossbeam inside the leveling machine, and the two limiting plates are located on both sides of the crossbeam.

3. The roller changing device for a leveling machine according to claim 1, characterized in that: The upper frame of the support roller includes two longitudinal beams, two transverse beams, and four uprights. The ends of the two longitudinal beams and two transverse beams are connected. The uprights are installed at the lower end of the connection between the longitudinal beams and the transverse beams. The uprights are placed on the bearing seats on both sides of the support roller. The inner side of the lower end of the uprights is in contact with the upper surface of the support roller.

4. The roller changing device for a leveling machine according to claim 3, characterized in that: The two longitudinal beams are I-beams, while the crossbeam and column are both channel steel. Two reinforcing plates are also installed between the two longitudinal beams.

5. The roller changing device for a leveling machine according to claim 1, characterized in that: The mobile vehicle consists of a body and wheels, with the wheels mounted on both sides of the body.

6. The roller changing device for a leveling machine according to claim 5, characterized in that: There are two tracks, and a limiting device is installed above the end of each track. The length of the limiting device is greater than the distance between the outer sides of the two tracks. Fixing rods are installed on both sides of the limiting device, and the fixing rods are fixedly connected to the platform at the lower end.

7. The roller changing device for a leveling machine according to claim 6, characterized in that: The limiting device is made of channel steel.

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