Disassembling tool for roller bearing

Abstract

The utility model discloses a dismounting tool for a roller bearing. The dismounting tool comprises an upper pressure plate and a lower pressure plate which are fixedly mounted into a whole through a suspender, wherein the upper pressure plate and the lower pressure plate are vertically distributed at an interval, the upper pressure plate is used for being fixedly matched with the upper end face of a to-be-disassembled roller bearing, and the lower pressure plate is used for being fixedly matched with the lower end face of the to-be-disassembled roller bearing; a lifting ring nut matched with a crane is mounted at the upper end part of the lifting rod; according to the utility model, the dismounting work of the roller bearing can be quickly and conveniently completed; the roller bearing dismounting device is simple in structure, easy to manufacture, low in cost and very convenient to operate, and the safety and the working efficiency of dismounting the roller bearing can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of rolling mill equipment in strip steel production lines, and specifically relates to a disassembly tool for roll bearings. Background Technology

[0002] Roll bearings are crucial equipment in single-stand six-high reciprocating rolling mills and require regular disassembly and inspection. However, the bearings and bearing housings have complex structures, with individual bearings weighing tens of kilograms, making disassembly difficult, labor-intensive, and posing a significant risk of mechanical injury during operation.

[0003] Therefore, the applicant urgently needs to find technical solutions to address the above-mentioned technical problems. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a tool for disassembling roll bearings, which can quickly and conveniently complete the disassembly of roll bearings; moreover, this utility model has a simple structure, is easy to manufacture, has low cost and is very easy to operate, and can effectively improve the safety and work efficiency of disassembling roll bearings.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A disassembly tool for a rolling mill bearing includes an upper pressure plate and a lower pressure plate that are fixedly mounted as one unit by a lifting rod; wherein,

[0007] The upper pressure plate and the lower pressure plate are distributed at an interval between the upper and lower parts. The upper pressure plate is used to fix and cooperate with the upper end face of the roll bearing to be disassembled, and the lower pressure plate is used to fix and cooperate with the lower end face of the roll bearing to be disassembled.

[0008] The upper end of the boom is fitted with a lifting eye nut that works with the crane.

[0009] Preferably, the outer circumferential surface of the upper pressure plate is provided with a pressure plate recess structure, which is used to fix and fit against the upper end face of the roll bearing to be disassembled.

[0010] Preferably, a first chuck and a second chuck are fixedly installed on the upper end face of the lower pressure plate, which are symmetrically spaced apart; wherein the first chuck and the second chuck are respectively provided with a chuck notch structure, which is fixedly attached to the lower end face of the corresponding roll bearing to be disassembled through the chuck notch structure.

[0011] Preferably, the first chuck is provided with mounting holes, and the first chuck is fixedly mounted on the upper end face of the lower pressure plate by fastening the mounting holes with the internal hex screws.

[0012] Preferably, the mounting hole is waist-shaped, with a length of 38-42mm and a width of 10-14mm; the socket head cap screw is an M10 socket head cap screw.

[0013] Preferably, the upper end and lower end of the boom are respectively provided with upper threads and lower threads, wherein the upper pressure plate is fixedly installed and connected to the boom by the fastening fit of the upper thread and the upper nut, and the lower pressure plate is fixedly installed and connected to the boom by the fastening fit of the lower thread and the lower nut.

[0014] Preferably, the boom is made of round steel with an outer diameter of 16-20mm and the material is 42CrMo.

[0015] Preferably, the upper thread is an M16 thread and the lower thread is an M12 thread; the upper nut is an M16 nut and the lower nut is an M12 nut.

[0016] Preferably, the upper pressure plate has weight-reducing holes that are symmetrically arranged on the left and right sides.

[0017] Preferably, the roll bearing to be disassembled is installed on the inner circumference of the bearing housing, and the lower pressure plate is attached to the bottom of the bearing housing during disassembly.

[0018] This invention proposes a disassembly tool for roll bearings, consisting of an upper pressure plate, a lower pressure plate, a lifting rod, and a lifting ring nut. This tool can quickly and conveniently disassemble roll bearings. Furthermore, this invention has a simple structure, is easy to manufacture, has low cost, and is very easy to operate, effectively improving the safety and efficiency of disassembling roll bearings. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the disassembly tool for the roll bearing in a specific embodiment of this utility model. Detailed Implementation

[0020] This utility model discloses a disassembly tool for a rolling mill bearing, including an upper pressure plate and a lower pressure plate fixedly installed as one unit by a lifting rod; wherein, the upper pressure plate and the lower pressure plate are distributed vertically at intervals, the upper pressure plate is used to fix and cooperate with the upper end face of the rolling mill bearing to be disassembled, and the lower pressure plate is used to fix and cooperate with the lower end face of the rolling mill bearing to be disassembled; a lifting eye nut for cooperation with a crane is installed at the upper end of the lifting rod.

[0021] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] Please see Figure 1 As shown, a disassembly tool 1 for a rolling mill bearing includes an upper pressure plate 11 and a lower pressure plate 12 fixedly mounted as one unit by a lifting rod 14; wherein, the upper pressure plate 11 and the lower pressure plate 12 are distributed vertically at intervals, the upper pressure plate 11 is used to fix and cooperate with the upper end face of the rolling mill bearing to be disassembled, and the lower pressure plate 12 is used to fix and cooperate with the lower end face of the rolling mill bearing to be disassembled; a lifting eye nut 15 cooperating with a crane is installed at the upper end of the lifting rod 14; preferably, in this embodiment, the rolling mill bearing 2 to be disassembled is installed on the inner circumference of the bearing seat 3, and when the disassembly operation is performed, the lower pressure plate 12 is attached to the bottom of the bearing seat 3.

[0023] Preferably, in this embodiment, the outer peripheral surface of the upper pressure plate 11 is provided with a pressure plate recess structure, which is fixedly attached to the upper end face of the roll bearing to be disassembled through the pressure plate recess structure. Specifically, preferably, in this embodiment, the cross-sectional size of the pressure plate recess structure is 7.5*5mm. Preferably, in this embodiment, the upper pressure plate 11 is provided with weight reduction holes 11a that are symmetrically arranged on the left and right sides.

[0024] Preferably, in order to facilitate quick positioning and fitting during disassembly, in this embodiment, a first chuck 13a and a second chuck 13b are fixedly installed on the upper end face of the lower pressure plate 12, which are symmetrically spaced apart. The first chuck 13a and the second chuck 13b are respectively provided with chuck recess structures, which are fixedly fitted to the lower end face of the corresponding roll bearing to be disassembled through the chuck recess structures.

[0025] Preferably, in this embodiment, the first chuck 13a is provided with a mounting hole 19, and the first chuck 13a is fixedly installed on the upper end face of the lower pressure plate 12 by the fastening cooperation between the mounting hole 19 and the internal hex screw 18; more preferably, the mounting hole 19 is waist-shaped, with a length of 38-42mm (specifically 40mm in this embodiment) and a width of 10-14mm (specifically 12mm in this embodiment); the internal hex screw 18 is an M10 internal hex screw.

[0026] Preferably, in this embodiment, the upper end and lower end of the boom 14 are respectively provided with upper threads and lower threads. The upper pressure plate 11 is fixedly installed and connected to the boom 14 by the fastening cooperation of the upper thread and the upper nut 16, and the lower pressure plate 12 is fixedly installed and connected to the boom 14 by the fastening cooperation of the lower thread and the lower nut 17.

[0027] Preferably, in this embodiment, the rod 14 is made of round steel with an outer diameter of 16-20mm (specifically 18mm in this embodiment), and the material is 42CrMo.

[0028] Preferably, in this embodiment, the upper thread is an M16 thread and the lower thread is an M12 thread; the upper nut 16 is an M16 nut and the lower nut 17 is an M12 nut.

[0029] It should be noted that, in this embodiment, during disassembly, the chuck recess structure is fixedly attached to the lower end face of the roll bearing to be disassembled, and then the first chuck 13a and the second chuck 13b are locked and fixed using hexagonal screws 18 respectively; the pressure plate recess structure is fixedly attached to the upper end face of the roll bearing to be disassembled; the lifting rod 14 is locked and fixed using the upper nut 16 and the lower nut 17 respectively to prevent the entire bearing seat 3 from shaking when the crane lifts the lifting ring nut 15 of the disassembly tool 1; finally, the crane lifts the disassembly tool 1 carrying the roll bearing 2, which can quickly and conveniently complete the disassembly of the roll bearing 2; and the structure of this utility model is simple, easy to manufacture, low in cost, and very easy to operate, which can effectively improve the safety and work efficiency of disassembling the roll bearing.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tool for disassembling rolling mill bearings, characterized in that, This includes an upper pressure plate (11) and a lower pressure plate (12) that are fixedly installed as a single unit via a hanger rod (14); wherein, The upper pressure plate (11) and the lower pressure plate (12) are distributed at an interval between the upper and lower parts. The upper pressure plate (11) is used to fix and cooperate with the upper end face of the roll bearing to be disassembled, and the lower pressure plate (12) is used to fix and cooperate with the lower end face of the roll bearing to be disassembled. The upper end of the boom (14) is equipped with a lifting eye nut (15) that cooperates with the crane. The outer circumferential surface of the upper pressure plate (11) is provided with a pressure plate recess structure, which is used to fix and fit against the upper end face of the roll bearing to be disassembled.

2. The disassembly tool for the roll bearing according to claim 1, characterized in that, The upper end face of the lower pressure plate (12) is fixedly equipped with a first chuck (13a) and a second chuck (13b) that are symmetrically spaced on the left and right sides; wherein, the first chuck (13a) and the second chuck (13b) are respectively provided with a chuck recess structure, and the chuck recess structure is fixedly attached to the lower end face of the corresponding roll bearing to be disassembled.

3. The disassembly tool for the roll bearing according to claim 2, characterized in that, The first chuck (13a) is provided with mounting holes, and the first chuck (13a) is fixedly installed on the upper end face of the lower pressure plate (12) by fastening the mounting holes with the internal hex screws (18).

4. The disassembly tool for the roll bearing according to claim 3, characterized in that, The mounting hole is waist-shaped, with a length of 38-42mm and a width of 10-14mm; the internal hex screw (18) is an M10 internal hex screw.

5. The disassembly tool for the roll bearing according to claim 1, characterized in that, The upper end and lower end of the boom (14) are respectively provided with upper thread and lower thread. The upper pressure plate (11) is fixedly installed and connected to the boom (14) by the fastening of the upper thread and the upper nut (16), and the lower pressure plate (12) is fixedly installed and connected to the boom (14) by the fastening of the lower thread and the lower nut (17).

6. The disassembly tool for the roll bearing according to claim 1 or 5, characterized in that, The boom (14) is made of round steel with an outer diameter of 16-20mm and is made of 42CrMo material.

7. The disassembly tool for the roll bearing according to claim 5, characterized in that, The upper thread is an M16 thread, and the lower thread is an M12 thread; the upper nut (16) is an M16 nut, and the lower nut (17) is an M12 nut.

8. The disassembly tool for the roll bearing according to claim 1, characterized in that, The upper pressure plate (11) is provided with weight reduction holes (11a) that are symmetrically arranged on the left and right sides.

9. The disassembly tool for the roll bearing according to claim 1, characterized in that, The roll bearing (2) to be disassembled is installed on the inner circumference of the bearing housing (3). When disassembly is performed, the lower pressure plate (12) is attached to the bottom of the bearing housing (3).

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