Device for disassembling built-in bearing of roller

Abstract

The utility model relates to a device for disassembling a built-in bearing of a roller, and belongs to the technical field of plate production unit equipment in the metallurgical industry. According to the technical scheme, the device comprises a rotating disc (1), a lead screw (2), a front baffle (3), a connecting shaft (4), pull claws (5) and a pull rod (10), one end of the lead screw (2) is fixedly connected with the rotating disc (1), the other end of the lead screw (2) is rotationally connected with the pull rod (10) through the connecting shaft (4), the pull claws (5) matched with built-in bearings are arranged at the two ends of the pull rod (10) respectively, and the lead screw (2) is in threaded connection with the front baffle (3); one end of the connecting shaft (4) is rotationally connected with the lead screw (2) through a rotating shaft (8), and the other end of the connecting shaft (4) is rotationally connected with the pull rod (10). The device has the beneficial effects that the built-in bearing of the roller can be conveniently and quickly dismounted, and the bearing is prevented from being damaged in the roller dismounting process.

Description

Technical Field

[0001] This utility model relates to a device for disassembling the built-in bearing of a roller, belonging to the technical field of sheet metal production unit equipment in the metallurgical industry. Background Technology

[0002] Rollers are common components in sheet metal production lines. Common types of rollers include forming rollers, rubber rollers, tension rollers, and tension gauge rollers. Some rollers have external bearings, while others have internal bearings. Rollers with external bearings have the bearing housing on the roller shaft, making them easy to disassemble and install. Rollers with internal bearings have the bearing installed inside the roller body, making bearing removal more difficult. Furthermore, without suitable tools, disassembly can easily damage or even render the bearing unusable.

[0003] Tension gauge rolls, commonly used in rolling mills and leveling machines of plate rolling mills, have built-in bearings. These rolls require periodic surface repairs, which necessitate disassembling the internal parts and bearings to prevent damage during the repair process. In actual production, problems frequently arise during the disassembly and assembly of tension gauge rolls, such as damage to the bearing cage, rolling elements, and wear on the inner and outer rings, leading to unnecessary spare parts consumption.

[0004] To solve the above problems, it is necessary to design a convenient, simple, economical and practical tool for disassembling the internal bearings of the roller. Utility Model Content

[0005] The purpose of this invention is to provide a device for disassembling the internal bearing of a roller, which can conveniently and quickly disassemble the internal bearing of the roller, avoid damage to the bearing during the disassembly process, and solve the problems existing in the background art.

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

[0007] A device for disassembling the built-in bearing of a roller includes a turntable, a lead screw, a front baffle, a connecting shaft, a claw, and a pull rod. One end of the lead screw is fixedly connected to the turntable, and the other end of the lead screw is rotatably connected to the pull rod through the connecting shaft. Both ends of the pull rod are provided with claws that cooperate with the built-in bearing. The lead screw is threadedly connected to the front baffle.

[0008] One end of the connecting shaft is rotatably connected to the lead screw via a rotating shaft, and the other end of the connecting shaft is rotatably connected to the pull rod.

[0009] The pull rod has a circular hole in the middle that mates with the connecting shaft.

[0010] The pull claws at both ends of the pull rod that mate with the built-in bearings are arc-shaped, with a diameter larger than the inner ring diameter of the built-in bearing and smaller than the outer ring diameter of the built-in bearing.

[0011] The front baffle has evenly arranged bolt holes along its circumference.

[0012] The advantages of this utility model are: simple structure, easy to use, and low price. It can easily and quickly disassemble the roller's built-in bearing, improve maintenance efficiency, prevent bearing damage during disassembly, and reduce spare parts costs. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the pull claw of this utility model after rotation;

[0015] Figure 3 This is a cross-sectional view of the present invention in use.

[0016] Figure 4 This is a schematic diagram of the connecting shaft of this utility model;

[0017] Figure 5 This is a schematic diagram of the lead screw of this utility model;

[0018] In the diagram: 1. Turntable, 2. Lead screw, 3. Front baffle, 4. Connecting shaft, 5. Pull claw, 6. Bearing, 7. Roller, 8. Shaft, 9. Cylinder, 10. Pull rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] See attached document Figure 1-5 A device for disassembling the built-in bearing of a roller includes a turntable 1, a lead screw 2, a front baffle 3, a connecting shaft 4, pull claws 5, and a pull rod 10. One end of the lead screw 2 is fixedly connected to the turntable 1, and the other end of the lead screw 2 is rotatably connected to the pull rod 10 through the connecting shaft 4. Both ends of the pull rod 10 are respectively provided with pull claws 5 that cooperate with the built-in bearing. The lead screw 2 is threadedly connected to the front baffle 3.

[0021] In this embodiment, refer to the appendix Figure 1-5 The device includes a turntable 1, a lead screw 2, a front baffle 3, a connecting shaft 4, pull claws 5, and a pull rod 10. The turntable 1 is installed at one end of the lead screw 2 and is fixed perpendicularly to the lead screw 2. The turntable 1 can drive the lead screw 2 to rotate. The front baffle 3 is arranged parallel to the turntable 1, and a threaded hole is provided in the center of the front baffle 3. The lead screw 2 passes through the threaded hole in the center of the front baffle 3. A connecting shaft 4 is installed at the other end of the lead screw 2. The connecting shaft 4 is connected to the lead screw 2 through a rotating shaft 8. The connecting shaft 4 can swing freely around this rotating shaft 8. The other end of the connecting shaft 4 is connected to the pull rod 10. The pull rod 10 can rotate 360 ​​degrees around the connecting shaft 4. Pull claws 5 are provided at both ends of the pull rod 10.

[0022] See attached document Figure 1 , 2 4, 5. Turntable 1 is annular with a three-pronged support, possessing high torsional strength. The center of turntable 1 is fixedly welded to lead screw 2. Four small holes are evenly distributed along the edge of the front baffle 3. One end of connecting shaft 4 is connected to lead screw 2, and the other end is connected to a pull rod 10. Connecting shaft 4 and lead screw 2 are connected via rotating shaft 8 and can swing freely. Pull rod 10 has a round hole in the middle that fits onto the cylinder 9 at the other end of connecting shaft 4. Pull rod 10 can rotate around this cylinder 9, thus achieving rotation at any angle in space. Both ends of pull rod 10 have arc-shaped claws 5, used to pull bearing 6 when disassembling it. The outer diameter of claw 5 is larger than the inner diameter of bearing 6 but smaller than the outer diameter of bearing 6, and smaller than the inner diameter of roller 7.

[0023] When using, first rotate the connecting shaft 4 in the device to adjust the pull claw 5. Figure 3 The position of the pull claw 5 is adjusted to allow it to pass through the inner hole of the bearing 6. Then, the position of the pull claw 5 is adjusted so that it fully contacts the side of the bearing 6. Next, the front baffle 3 is rotated to contact the end face of the roller 7, and bolts are installed to fix the front baffle 3 to the end face of the roller 7. At this point, the turntable 1 is rotated counterclockwise, causing the lead screw 2 to rotate counterclockwise. The thread in the center hole of the front baffle 3 engages with the thread of the lead screw 2. With the baffle 3 stationary, the lead screw 2 slowly moves outward, causing the pull claw 5 to move. The pull claw 5 will then press against the side of the bearing 6, exerting an outward pulling force on the bearing. Under this force, the bearing 6 is slowly pulled out until it is completely removed. Throughout the entire disassembly process, the bearing 6 is not subjected to any external impact or wear on parts, thus protecting the bearing 6 and preventing damage.

Claims

1. A device for disassembling the internal bearing of a roller, characterized in that: The assembly includes a turntable (1), a lead screw (2), a front baffle (3), a connecting shaft (4), pull claws (5), and a pull rod (10). One end of the lead screw (2) is fixedly connected to the turntable (1), and the other end of the lead screw (2) is rotatably connected to the pull rod (10) through the connecting shaft (4). The pull rod (10) has pull claws (5) at both ends that cooperate with the built-in bearing. The pull claws (5) are arc-shaped, and their diameter is larger than the inner ring diameter of the built-in bearing and smaller than the outer ring diameter of the built-in bearing. The lead screw (2) is threaded onto the front baffle (3). One end of the connecting shaft (4) is rotatably connected to the lead screw (2) through a rotating shaft (8), and the other end of the connecting shaft (4) is rotatably connected to the pull rod (10). The pull claws (5) at both ends of the pull rod (10) that cooperate with the built-in bearing are arc-shaped, and their diameter is larger than the inner ring diameter of the built-in bearing and smaller than the outer ring diameter of the built-in bearing.

2. The device for disassembling the built-in bearing of a roller according to claim 1, characterized in that: The pull rod (10) has a round hole in the middle that mates with the connecting shaft (4).

3. The device for disassembling the built-in bearing of a roller according to claim 1, characterized in that: The front baffle (3) has evenly arranged bolt holes in the circumferential direction.

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