Dismounting device for bearing seat of four-roll crusher

Abstract

The utility model relates to a dismounting device for a bearing seat of a four-roll crusher, which aims to solve the technical problem that the existing bearing needs to be dismounted by cutting, and adopts the technical scheme that the dismounting device comprises an ejector rod, an adjusting plate, two guide pull rods, a plurality of nuts and two fixed grapnels, the upper flat plate and the lower flat plate are connected through the supporting beam, one side of the supporting beam is a clamping portion, the other side of the supporting beam is a connecting portion, connecting holes are formed in the upper flat plate and the lower flat plate of the connecting portion, the connecting portions of the two fixed grapnels are symmetrically arranged outwards, the two guide pull rods are connected with the connecting holes of the two connecting portions, and the other ends of the guide pull rods are connected with the two sides of the adjusting plate. The ejector rod penetrates through a screw hole in the middle of the adjusting plate, the end of the ejector rod is aligned with a roller shaft in the middle of the four-roller crusher bearing seat, and a nut is arranged at the joint of the ejector rod and the adjusting plate. According to the utility model, the bearing seat is separated from the roll shaft by fixing the claw hook and the ejector rod, so that the damage to the bearing seat and the roll shaft in the dismounting process is avoided, and the cost consumption of spare parts is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of bearing housing disassembly equipment, specifically relating to a disassembly device for a bearing housing of a four-roll crusher. Background Technology

[0002] Four-roll crushers are widely used material crushing equipment in industries such as mining, metallurgy, and cement. They mainly utilize four wear-resistant alloy rollers that rotate continuously relative to each other to generate extrusion and shearing forces to crush materials. During operation, due to the high strength of the materials, the alloy rollers often experience severe wear or even breakage, which directly affects the crushing effect. Considering the high cost of directly replacing the alloy rollers, it is generally sufficient to replace the alloy roller skin before continued use.

[0003] However, replacing the alloy roller skin requires first removing the bearing housing. The traditional method of disassembling the bearing housing is to use a flame cutting tool to break the bearing, and only after breaking it can the bearing housing be removed. This disassembly method is inefficient and has a high risk factor. During the disassembly process, not only is the internal bearing damaged and the consumption of spare parts increased, but it may also cause some damage to the shaft. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems and provide a disassembly device for the bearing housing of a four-roll crusher.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A disassembly device for a bearing seat of a four-roll crusher includes a top rod, an adjusting plate, two guide rods, several nuts, and two fixed hooks. The fixed hooks are generally of an "I" shape, with upper and lower plates connected by a support beam. One side of the support beam is a snap-fit ​​part, and the other side is a connecting part. The upper and lower plates of the connecting part have connecting holes. The connecting parts of the two fixed hooks are symmetrically arranged facing outwards. One end of each of the two guide rods is connected to the connecting holes of the two connecting parts by threads and nuts. The other end of each guide rod is connected to both sides of the adjusting plate by threads and nuts. The top rod passes through the threaded hole in the middle of the adjusting plate by a threaded connection, with its end aligned with the roller shaft in the middle of the bearing seat of the four-roll crusher. A nut is provided at the connection between the top rod and the adjusting plate.

[0007] Furthermore, the length of the top rod is greater than the length of the guide rod, and a pin hole is provided at the free end of the top rod, in which a rotating rod is provided.

[0008] Furthermore, the distance between the support beams of the two fixed hooks is equal to the length of the two ends of the bearing seat.

[0009] Furthermore, the dimensions of the snap-fit ​​portion match the dimensions of the bearing housing end, and the support beam on one side of the snap-fit ​​portion has an arc-shaped structure adapted to the bearing housing end.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model uses a fixed hook to hold the bearing seat and a push rod to apply a pushing force to the roller shaft, so that the bearing seat is separated from the roller shaft. The whole process avoids damage to the bearing seat and shaft during disassembly and reduces the cost of spare parts.

[0012] 2. This utility model can be operated simply by rotating the rotating rod and adjusting the position of the adjusting plate, which is easy to operate, improves work efficiency and safety, and reduces the labor intensity of employees;

[0013] 3. This utility model has a simple structure, is easy to manufacture, and has low cost, effectively solving the problem of disassembling the bearing seat of a four-roll crusher. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0016] Figure 3 This is a schematic diagram of the fixed gripper structure of this utility model;

[0017] In the diagram: 1. Top rod; 2. Adjusting plate; 3. Guide rod; 4. Nut; 5. Bearing seat; 6. Fixed grab hook; 7. Crusher; 8. Rotating rod;

[0018] 6.1 Snap-fit ​​part; 6.2 Support beam; 6.3 Connecting part. Detailed Implementation

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

[0020] like Figure 1-3As shown, a disassembly device for a bearing housing of a four-roll crusher includes a top rod 1, an adjusting plate 2, two guide rods 3, several nuts 4, and two fixing hooks 6. The fixing hooks 6 are generally of an "I" shape, with the upper and lower plates connected by a support beam 6.2. One side of the support beam 6.2 is a snap-fit ​​part 6.1, the size of which matches the size of the end of the bearing housing 5. The support beam 6.2 on one side of the snap-fit ​​part 6.1 has an arc-shaped structure adapted to the end of the bearing housing 5. The other side is a connecting part 6.3, with connecting holes on the upper and lower plates of the connecting part 6.3. The connecting parts 6.3 of the two fixing hooks 6 are symmetrically arranged outwards. The distance between the support beams 6.2 is equal to the length of both ends of the bearing seat 5, which facilitates the snap-fit ​​connection between the two ends of the bearing seat 5. One end of each of the two guide rods 3 is connected to the connecting holes of the two connecting parts 6.3 by threads and nuts 4. The other end of each of the two guide rods 3 is connected to both sides of the adjusting plate 2 by threads and nuts 4. The top rod 1 passes through the screw hole in the middle of the adjusting plate 2 by a threaded connection, and its end is aligned with the roller shaft in the middle of the bearing seat 5 of the four-roll crusher. A pin hole is opened at the free end, and a rotating rod 8 is provided in the pin hole to facilitate the rotation of the top rod 1. The length of the top rod 1 is greater than the length of the guide rod 3, and a nut 4 is provided at the connection between the top rod 1 and the adjusting plate 2.

[0021] The working process of this utility model:

[0022] In use, first rotate the rotating rod 8 to rotate the top rod 1 away from the bearing seat 5, connect the guide rod 3 to the fixed hook 6 and the adjusting plate 2, align the two fixed hooks 6 with the two ends of the bearing seat 5, and move the fixed hooks 6 downward from above so that the locking part 6.1 locks the two ends of the bearing seat 5. Rotate the top rod 1 by rotating the rotating rod 8 so that the end of the top rod 1 presses against the roller shaft of the bearing seat 5 of the crusher 7. Then continue to rotate the top rod 1 to continuously apply force to the roller shaft. The top rod 1 applies a forward force to the roller shaft, while the guide rod 3 pulls the fixed hook 6 to fix the bearing seat 5. This is equivalent to the guide rod 3 pulling the bearing seat 5 backward in the opposite direction. As the top rod 1 rotates, the applied force increases, causing the roller shaft to loosen and separate from the bearing seat 5, thus completing the disassembly of the bearing seat 5.

[0023] During the process of disassembling the bearing housing 5, if the push rod 1 cannot push forward due to insufficient pushing distance, simply adjust the position of the adjusting plate 2 on the guide rod 3 to bring it closer to the bearing housing 5, and then continue to adjust the push rod 1 to push the roller shaft, thereby achieving the purpose of disassembling the bearing housing 5.

Claims

1. A disassembly device for a bearing housing of a four-roll crusher, characterized in that, The device includes a top rod (1), an adjusting plate (2), two guide rods (3), several nuts (4), and two fixed hooks (6). The fixed hooks (6) are in the shape of an "I". The upper and lower plates are connected by a support beam (6.2). One side of the support beam (6.2) is a snap-fit ​​part (6.1), and the other side is a connecting part (6.3). The upper and lower plates of the connecting part (6.3) are provided with connecting holes. The connecting parts (6.3) of the two fixed hooks (6) are symmetrically arranged outward. One end of the two guide rods (3) is connected to the connecting holes of the two connecting parts (6.3) by threads and nuts (4). The other end of the two guide rods (3) is connected to both sides of the adjusting plate (2) by threads and nuts (4). The top rod (1) passes through the screw hole in the middle of the adjusting plate (2) by a threaded connection, and the end is aligned with the roller shaft in the middle of the bearing seat (5) of the four-roll crusher. Nuts (4) are provided at the connection between the top rod (1) and the adjusting plate (2).

2. The disassembly device for a bearing housing of a four-roll crusher according to claim 1, characterized in that, The length of the top rod (1) is greater than the length of the guide rod (3), and a pin hole is provided at the free end of the top rod (1), in which a rotating rod (8) is provided.

3. The disassembly device for a bearing housing of a four-roll crusher according to claim 1, characterized in that, The distance between the support beams (6.2) of the two fixed hooks (6) is equal to the length of the two ends of the bearing seat (5).

4. The disassembly device for a bearing housing of a four-roll crusher according to claim 1, characterized in that, The dimensions of the snap-fit ​​part (6.1) match the dimensions of the end of the bearing seat (5), and the support beam (6.2) on one side of the snap-fit ​​part (6.1) is an arc-shaped structure adapted to the end of the bearing seat (5).

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