Water lubricated bearing rubber inner ring stripping and recycling device

Abstract

The invention discloses a water lubricated bearing rubber inner ring stripping and recycling device which comprises a power system, the power system is used for driving a stripping tool to move axially, the stripping tool can be inserted between a rubber inner ring of a water lubricated bearing and a shell, and the stripping tool adopts a cylindrical cutter; the water-lubricated bearing stripping device further comprises a clamping mechanism, the clamping mechanism is used for clamping the water-lubricated bearing, and the water-lubricated bearing in the clamping state and the stripping tool are coaxially arranged. The scheme provided by the invention is particularly suitable for stripping and recycling a large-size water-lubricated bearing, the rubber inner ring can be smoothly and quickly stripped out in an approximately lossless manner, and the operation difficulty is remarkably reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of recycling and reusing water-lubricated bearings, and in particular relates to a device for stripping and recycling a rubber inner ring of a water-lubricated bearing. Background Art

[0002] Water-lubricated bearings refer to bearings used directly in water, mainly divided into phenol bearings, rubber bearings, ceramic bearings, graphite bearings, PTFE and other polymer bearings. It does not require any sealing device. The bearings are directly lubricated by water, avoiding water pollution caused by lubricating oil or grease, and can effectively control the temperature rise of the bearings. It is safe and reliable.

[0003] Rubber bearings are typical water-lubricated bearings, mainly composed of a brass shell and a rubber inner ring, which is bonded to the inner wall of the brass shell by a strong adhesive. When the use time of a rubber bearing exceeds the allowable use time (service life) or its rubber inner ring is damaged, it is usually necessary to disassemble it and replace it with a new rubber bearing, but because its brass shell rarely breaks, it can be recycled and reused. At present, there are two main ways to recycle rubber bearings: one is to burn the rubber bearing in a high-temperature environment (a furnace higher than the melting point of rubber but lower than the melting point of the shell) to melt or burn the rubber inner ring, but this method is extremely polluting to the environment, and rubber plaques are likely to remain on the inner wall of the shell, which is usually only suitable for rubber bearings with a length of no more than 500mm; the second is to use a customized tool to peel off the rubber inner ring piece by piece, but this method is very time-consuming and labor-intensive, extremely inefficient, and easy to damage the operator's hands. Taking a DN150mm*1000mm rubber bearing as an example, it takes about two hours to completely peel off its rubber inner ring.

[0004] More importantly, the existing recycling methods for rubber bearings are all destructive methods, that is, only the brass shell can be recycled intact, and the rubber inner ring cannot be recycled. Therefore, if the rubber inner ring can be stripped and recycled as a whole, the manufacturing cost of recycled and reused rubber bearings can be greatly reduced. Summary of the invention

[0005] At least in order to solve the technical problems mentioned in the background technology, one of the purposes of the present invention is to provide a water-lubricated bearing rubber inner ring stripping and recovery device.

[0006] The present invention adopts the following technical solution.

[0007] A water-lubricated bearing rubber inner ring stripping and recovery device comprises a power system, the power system is used to drive a stripping tool to move axially, the stripping tool can be inserted between the rubber inner ring and the outer shell of the water-lubricated bearing; it also comprises a clamping mechanism, the clamping mechanism is used to clamp the water-lubricated bearing, and the water-lubricated bearing in the clamped state is coaxially arranged with the stripping tool.

[0008] In order to improve the stability during the stripping and recovery process of the rubber inner ring of the water-lubricated bearing, the power system adopts a worm gear mechanism; the clamping mechanism adopts a clamping clamping assembly, and a stopper is provided on the outside of the clamping clamping assembly for pressing against the end face of the water-lubricated bearing.

[0009] In order to further improve the stability and efficiency of the stripping and recovery process of the rubber inner ring of the water-lubricated bearing, the stripping tool includes a tool holder, which is fixedly connected to the worm of the worm gear mechanism, and the lower edge of the tool holder is abutted against the guide groove. A cylindrical tool is arranged in front of the tool holder, and a plurality of cylindrical plugs of the same specifications are arranged between the cylindrical tool and the tool holder. The cylindrical plug body is coaxially arranged with the cylindrical tool, and the cylindrical tool and the cylindrical plug body can be separated, and the outer diameter of the cylindrical tool is equal to the inner diameter of the outer shell.

[0010] In order to improve the stability during the stripping and recovery process of the rubber inner ring of the water-lubricated bearing and reduce the difficulty of operation, the power system adopts a stamping mechanism; the clamping mechanism adopts a clamping clamping assembly, and a baffle body for pressing against the end face of the water-lubricated bearing is arranged on the outside of the clamping clamping assembly; the stripping tool includes a tool holder, the tool holder is fixedly connected to the punch of the stamping mechanism, the tool holder is abutted against the guide groove, a cylindrical tool is arranged in front of the tool holder, and a number of cylindrical plugs of the same specifications are arranged between the cylindrical tool and the tool holder, the cylindrical plug body is coaxially arranged with the cylindrical tool, and the cylindrical tool and the cylindrical plug body can be separated, and the outer diameter of the cylindrical tool is equal to the inner diameter of the outer shell.

[0011] As a preferred solution, the outer diameter corresponding to the blade of the cylindrical cutter is equal to the inner diameter of the housing.

[0012] In order to prevent the cylindrical tool from getting stuck during the stripping process, the blades at different parts of the cylindrical tool have height differences, and the blade has an overall tooth-shaped structure.

[0013] As a preferred solution, a boss is provided on the knife seat, and the outer diameter of the boss is equal to the inner diameter of the cylindrical plug.

[0014] A method for stripping and recovering the rubber inner ring of a water-lubricated bearing using the above-mentioned device, comprising the following steps: Step 1, placing the water-lubricated bearing on the clamping mechanism and clamping it, at which time the distal end of the water-lubricated bearing abuts against the block body; in the present invention, the distal end of the water-lubricated bearing refers to the end of the water-lubricated bearing away from the power system, and the proximal end of the water-lubricated bearing refers to the end of the water-lubricated bearing close to the power system; Step 2, place the cylindrical tool in the guide groove in front of the tool holder, at this time, the blade of the cylindrical tool is just aligned with the interface between the rubber inner ring and the outer shell; Step 3, controlling the power system to run forward to move the driving tool holder forward, thereby driving the cylindrical tool to move forward and insert into the interface between the rubber inner ring and the outer shell. During the forward movement of the cylindrical tool, the rubber inner ring is gradually peeled off; Step 4, when the cylindrical tool moves to the target position, the power system is controlled to run in reverse to make the driving tool holder retreat a standard length, and then the cylindrical plug body is placed in the guide groove; Step 5, control the power system to run forward again to move the drive tool holder forward, and when the tool holder moves forward a standard length, control the power system to run reversely again to move the drive tool holder back a standard length, and then continue to put a new cylindrical plug into the guide groove; Step 6, repeat step 5 several times until the blade of the cylindrical tool is brought against the block and stops, then control the tool holder to reset and pull out the rubber inner ring.

[0015] As a preferred solution, the standard length distance is 10 to 20 mm greater than the length of the cylindrical plug body.

[0016] Beneficial effects: The scheme of the present invention is particularly suitable for stripping and recycling large-sized (length not less than one meter, inner diameter not less than DN100mm) water-lubricated bearings, and can smoothly and quickly strip out the rubber inner ring in a nearly non-destructive manner. Taking the rubber bearing of DN150~200mm*1000~1200mm as an example, it only takes about five minutes to completely strip its rubber inner ring. The rubber inner ring after stripping is cylindrical and can be reused after only surface treatment. The outer shell after stripping only needs to deal with the adhesive material on the inner wall before it can be reused; when the scheme of the present invention is used to strip and recycle water-lubricated bearings, there are only individual rubber patches on the inner wall of the outer shell, there is no air pollution caused by incineration, and it will not damage the operator's hands, which significantly reduces the difficulty of operation; the water-lubricated bearing rubber inner ring stripping and recycling device of the present invention also has the advantages of good stability and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the water-lubricated bearing rubber inner ring stripping and recovery device in Example 1; Figure 2 This is a cross-sectional schematic diagram of the water-lubricated bearing rubber inner ring stripping and recovery device in Example 1; Figure 3 This is a schematic diagram of the appearance of the cylindrical tool in Example 1; Figure 4 Schematic diagram of the cross section of the cylindrical tool in Example 1; Figure 5 This is a schematic diagram of the cylindrical plug body in Example 1; Figure 6 This is a cross-sectional schematic diagram of the water-lubricated bearing rubber inner ring stripping and recovery device in Example 2. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0019] Combination Figures 1 to 5 As shown, a water-lubricated bearing rubber inner ring stripping and recovery device includes a power system, which is used to drive a stripping tool 1 to move axially, and the stripping tool 1 can be inserted between the rubber inner ring 12 and the outer shell 11 of the water-lubricated bearing 10; it also includes a clamping mechanism, which is used to clamp the water-lubricated bearing 10, and the water-lubricated bearing 10 in the clamped state is coaxially arranged with the stripping tool 1.

[0020] In this embodiment, the power system adopts a horizontally arranged worm gear mechanism 9; the clamping mechanism adopts a plurality of spaced-apart clamping assemblies 3, and a baffle 2 for pressing against the end face of the water-lubricated bearing 10 is provided on the outside of the clamping assemblies 3 (away from the side of the clamping assemblies 3 of the power system).

[0021] In this embodiment, the stripping tool 1 includes a knife seat 4, which is fixedly connected to the worm of the worm gear mechanism 9, and the lower edge of the knife seat 4 is against the guide groove 8. A cylindrical tool 5 that can be flexibly placed and taken out is arranged in front of the knife seat 4, and a plurality of cylindrical plugs 6 of the same specifications are arranged between the cylindrical tool 5 and the knife seat 4. The cylindrical plug 6 is coaxially arranged with the cylindrical tool 5, and the cylindrical tool 5 and the cylindrical plug 6 can be separated, and the outer diameter of the cylindrical tool 5 is equal to the inner diameter of the shell 11. Among them, the outer diameter corresponding to the blade 14 of the cylindrical tool 5 is equal to the inner diameter of the shell 11; the blades 14 at different parts of the cylindrical tool 5 have height differences, and the blade 14 is a toothed structure as a whole (such as Figure 3 and Figure 4 ). A boss 7 is provided on the tool holder 4, and the outer diameter of the boss 7 is equal to the inner diameter of the cylindrical plug body 6. The stripping tool 1, the power system and the block body 2 are all installed on the base 13.

[0022] A method for stripping and recovering the rubber inner ring of a water-lubricated bearing according to the present embodiment comprises the following steps: Pretreatment: first use a knife or a spike tool to peel or pry open the bonding part between the end of the rubber inner ring 12 and the outer shell 11, and the axial depth of peeling or prying is controlled to be 5-10mm, so that the blade 14 of the cylindrical knife 5 in step 3 can be smoothly inserted at the initial stage of peeling; Step 1, placing the water-lubricated bearing 10 on the clamping mechanism and clamping it after adjusting the position of the water-lubricated bearing 10, at which time the far end of the water-lubricated bearing 10 abuts against the block body 2; Step 2, placing the cylindrical cutter 5 in the guide groove 8 in front of the cutter seat 4, at this time, the blade 14 of the cylindrical cutter 5 is just aligned with the interface between the rubber inner ring 12 and the outer shell 11; Step 3, controlling the power system to run forward (substantially, controlling the motor shaft of the worm gear mechanism 9 to rotate clockwise, the same below) to move the drive cutter seat 4 forward, thereby driving the cylindrical cutter 5 to move forward and insert into the interface between the rubber inner ring 12 and the outer shell 11. During the forward movement of the cylindrical cutter 5, the rubber inner ring 12 is gradually peeled off; Step 4, after the cylindrical cutter 5 moves to the target position, the power system is controlled to run in the reverse direction (essentially, the motor shaft of the worm gear mechanism 9 is controlled to rotate counterclockwise) to drive the cutter holder 4 to retreat a standard length. At this time, there is no space between the cylindrical cutter 5 and the cutter holder 4, and the cylindrical cutter 5 is embedded between the rubber inner ring 12 and the outer shell 11. Then, the cylindrical plug body 6 is placed in the guide groove 8; wherein, the standard length is 10 mm greater than the length of the cylindrical plug body 6; Step 5, the power system is controlled to run forward again to move the drive knife seat 4 forward. After the knife seat 4 moves forward a standard length, the power system is controlled to run reversely again to move the drive knife seat 4 back a standard length, and then a new cylindrical plug body 6 is continuously placed in the guide groove 8; Step 6, repeat step 5 several times until the blade 14 of the cylindrical cutter 5 is stopped after being pressed against the block body 2, then the cutter holder 4 is controlled to reset, and the rubber inner ring 12 is pulled out, so that the cylindrical rubber inner ring 12 of the integral structure can be obtained. Subsequently, the adhesive material on the inner wall of the outer shell 11 is cleaned, and the outer wall and inner wall of the rubber inner ring 12 are re-grinded or repaired, and the rubber inner ring 12 and the outer shell 11 can be reused. Example 2

[0023] Combination Figure 6 As shown, a water-lubricated bearing rubber inner ring stripping and recovery device includes a power system, which is used to drive a stripping tool 1 to move axially, and the stripping tool 1 can be inserted between the rubber inner ring 12 and the outer shell 11 of the water-lubricated bearing 10; it also includes a clamping mechanism, which is used to clamp the water-lubricated bearing 10, and the water-lubricated bearing 10 in the clamped state is coaxially arranged with the stripping tool 1.

[0024] In this embodiment, the power system adopts a vertically arranged stamping mechanism; the clamping mechanism adopts a clamping clamping assembly 3, and a baffle 2 for pressing against the end face of the water-lubricated bearing 10 is arranged on the outside of the clamping clamping assembly 3 (away from the bottom of the clamping clamping assembly 3 of the power system); the stripping tool 1 includes a tool holder 4, the tool holder 4 is fixedly connected to the punch 15 of the stamping mechanism, the tool holder 4 is abutted against the guide groove 8, a cylindrical tool 5 is arranged in front of the tool holder 4, and a number of cylindrical plugs 6 of the same specifications are arranged between the cylindrical tool 5 and the tool holder 4, the cylindrical plug 6 is coaxially arranged with the cylindrical tool 5, and the cylindrical tool 5 and the cylindrical plug 6 can be separated, and the outer diameter of the cylindrical tool 5 is equal to the inner diameter of the outer shell 11.

[0025] In this embodiment, the stripping tool 1 includes a tool holder 4, which is fixedly connected to the punch of the stamping mechanism. The lower edge of the tool holder 4 is against the guide groove 8. A cylindrical tool 5 that can be flexibly placed and taken out is arranged in front of the tool holder 4. A plurality of cylindrical plugs 6 of the same specifications are arranged between the cylindrical tool 5 and the tool holder 4. The cylindrical plug 6 is coaxially arranged with the cylindrical tool 5, and the cylindrical tool 5 and the cylindrical plug 6 can be separated. The outer diameter of the cylindrical tool 5 is equal to the inner diameter of the shell 11. Among them, the outer diameter corresponding to the blade 14 of the cylindrical tool 5 is equal to the inner diameter of the shell 11; the blades 14 at different parts of the cylindrical tool 5 have a height difference, and the blade 14 is a tooth-shaped structure as a whole. A boss 7 is arranged on the tool holder 4, and the outer diameter of the boss 7 is equal to the inner diameter of the cylindrical plug 6.

[0026] A method for stripping and recovering the rubber inner ring of a water-lubricated bearing according to the present embodiment comprises the following steps: Pretreatment: first use a knife or a spike tool to peel or pry open the bonding part between the end of the rubber inner ring 12 and the outer shell 11, and the axial depth of peeling or prying is controlled to be 5-10mm, so that the blade 14 of the cylindrical knife 5 in step 3 can be smoothly inserted at the initial stage of peeling; Step 1, placing the water-lubricated bearing 10 on the clamping mechanism and clamping it after adjusting the position of the water-lubricated bearing 10, at which time the far end of the water-lubricated bearing 10 abuts against the block body 2; Step 2, placing the cylindrical cutter 5 in the guide groove 8 in front of the cutter seat 4, at this time, the blade 14 of the cylindrical cutter 5 is just aligned with the interface between the rubber inner ring 12 and the outer shell 11; Step 3, controlling the power system to run forward (essentially controlling the punch of the punching mechanism to move downward) to move the driving tool holder 4 forward, thereby driving the cylindrical tool 5 to move forward and insert into the interface between the rubber inner ring 12 and the outer shell 11. During the forward movement of the cylindrical tool 5, the rubber inner ring 12 is gradually peeled off; Step 4, after the cylindrical cutter 5 moves to the target position, the power system is controlled to run in the reverse direction (essentially, the punch of the punching mechanism is controlled to move upward) to drive the cutter holder 4 to retreat a standard length. At this time, there is no space between the cylindrical cutter 5 and the cutter holder 4, and the cylindrical cutter 5 is embedded between the rubber inner ring 12 and the outer shell 11. Then, the cylindrical plug body 6 is placed in the guide groove 8; wherein, the standard length is 20 mm greater than the length of the cylindrical plug body 6; Step 5, the power system is controlled to run forward again to move the drive knife seat 4 forward. After the knife seat 4 moves forward a standard length, the power system is controlled to run reversely again to move the drive knife seat 4 back a standard length, and then a new cylindrical plug body 6 is continuously placed in the guide groove 8; Step 6, repeat step 5 several times until the blade 14 of the cylindrical cutter 5 is stopped after being pressed against the block body 2, then the cutter holder 4 is controlled to reset, and the rubber inner ring 12 is pulled out, so that the cylindrical rubber inner ring 12 of the integral structure can be obtained. Subsequently, the adhesive material on the inner wall of the outer shell 11 is cleaned, and the outer wall and inner wall of the rubber inner ring 12 are re-grinded or repaired, and the rubber inner ring 12 and the outer shell 11 can be reused.

[0027] For the rubber bearing of DN200mm*1200mm, the wall thickness of the rubber inner ring is 15mm and the wall thickness of the outer shell is 12mm. A cylindrical plug body 6 with a length of 200mm and a wall thickness of 10mm is selected, and a cylindrical cutter 5 with a length of 150mm and a wall thickness of 10mm is used. Using the scheme in Example 1, it takes about six minutes and fifteen seconds to completely peel off the rubber inner ring (including about one minute to place the rubber bearing), and the rubber inner ring after peeling is cylindrical, and there are only seven individual rubber patches on the inner wall of the outer shell after peeling (rubber patches refer to rubber blocks that remain on the inner wall of the outer shell and have a diameter of no more than 2mm); using the scheme in Example 2, it takes five minutes and three seconds to completely peel off the rubber inner ring (including one minute to place the rubber bearing), and the rubber inner ring after peeling is cylindrical, and there are only five individual rubber patches on the inner wall of the outer shell after peeling. When the outer shell is recycled by the traditional incineration method, the adhesive is also burned, and there are at least hundreds of rubber patches remaining on the roughening points of the inner wall of the outer shell (i.e., small pits on the inner wall of the outer shell).

[0028] In the implementation scheme, it is critical to use a power system in conjunction with a specific stripping tool, which can strip the rubber inner ring in a nearly non-destructive manner. During the stripping process, the axial force provided by the power system is cleverly converted into a radial force to tear off the rubber inner ring, and the stripped portion of the rubber inner ring is guided with the help of a cylindrical tool and the inner cavity of the cylindrical plug.

[0029] The scheme of the embodiment is particularly suitable for stripping and recycling large-sized (length not less than one meter, inner diameter not less than DN100mm) water-lubricated bearings, and can smoothly and quickly strip out the rubber inner ring in a nearly non-destructive manner. Taking the rubber bearing of DN150~200mm*1000~1200mm as an example, it only takes about five minutes to completely strip the rubber inner ring. The peeled rubber inner ring is cylindrical and can be reused after only surface treatment. The peeled outer shell only needs to deal with the adhesive material on the inner wall before it can be reused, truly realizing the recycling of the rubber inner ring and the outer shell; when the water-lubricated bearings are stripped and recycled using the scheme of the embodiment, there are only individual rubber patches on the inner wall of the outer shell, there is no air pollution caused by incineration, and it will not damage the operator's hands, which significantly reduces the difficulty of operation and has the advantages of good stability and simple structure.

Claims

1. A water-lubricated bearing rubber inner ring stripping and recovery device, comprising a power system, characterized in that: The power system is used to drive the stripping tool (1) to move axially, and the stripping tool (1) can be inserted between the rubber inner ring (12) and the outer shell (11) of the water-lubricated bearing (10); and also includes a clamping mechanism, the clamping mechanism is used to clamp the water-lubricated bearing (10), and the water-lubricated bearing (10) in the clamped state is coaxially arranged with the stripping tool (1).

2. The water-lubricated bearing rubber inner ring stripping and recovery device according to claim 1 is characterized in that: The power system adopts a worm gear mechanism (9); the clamping mechanism adopts a clamping hoop type clamping assembly (3), and a stopper (2) for pressing against the end surface of a water-lubricated bearing (10) is provided on the outside of the clamping hoop type clamping assembly (3).

3. The water-lubricated bearing rubber inner ring stripping and recovery device according to claim 2 is characterized in that: The stripping tool (1) comprises a knife seat (4), the knife seat (4) is fixedly connected to the worm of the worm gear mechanism (9), the lower edge of the knife seat (4) is abutted against the guide groove (8), a cylindrical tool (5) is arranged in front of the knife seat (4), and a plurality of cylindrical plugs (6) of the same specification are arranged between the cylindrical tool (5) and the knife seat (4), the cylindrical plug (6) and the cylindrical tool (5) are coaxially arranged, and the cylindrical tool (5) and the cylindrical plug (6) can be separated, and the outer diameter of the cylindrical tool (5) is equal to the inner diameter of the housing (11).

4. The water-lubricated bearing rubber inner ring stripping and recovery device according to claim 1 is characterized in that: The power system adopts a stamping mechanism; the clamping mechanism adopts a clamping hoop type clamping assembly (3), and a stopper (2) for pressing against the end face of a water-lubricated bearing (10) is arranged on the outside of the clamping hoop type clamping assembly (3); the stripping tool (1) comprises a tool holder (4), the tool holder (4) is fixedly connected to a punch (15) of the stamping mechanism, the tool holder (4) is abutted against a guide groove (8), a cylindrical tool (5) is arranged in front of the tool holder (4), a plurality of cylindrical plug bodies (6) of the same specification are arranged between the cylindrical tool (5) and the tool holder (4), the cylindrical plug body (6) and the cylindrical tool (5) are coaxially arranged, and the cylindrical tool (5) and the cylindrical plug body (6) can be separated, and the outer diameter of the cylindrical tool (5) is equal to the inner diameter of the housing (11).

5. The water-lubricated bearing rubber inner ring stripping and recovery device according to claim 3 or 4, characterized in that: The outer diameter corresponding to the blade (14) of the cylindrical cutter (5) is equal to the inner diameter of the housing (11).

6. The water-lubricated bearing rubber inner ring stripping and recovery device according to claim 5 is characterized in that: The blades (14) at different positions of the cylindrical cutter (5) have height differences, and the blades (14) are in a toothed structure as a whole.

7. The water-lubricated bearing rubber inner ring stripping and recovery device according to claim 6 is characterized in that: A boss (7) is provided on the knife seat (4), and the outer diameter of the boss (7) is equal to the inner diameter of the cylindrical plug body (6).

8. A method for stripping and recovering the rubber inner ring of a water-lubricated bearing using the device according to any one of claims 5 to 7, characterized in that the steps include: Step 1, placing the water-lubricated bearing (10) on the clamping mechanism and clamping it, wherein the distal end of the water-lubricated bearing (10) abuts against the stopper (2); Step 2, placing the cylindrical cutter (5) in the guide groove (8) in front of the cutter seat (4), at this time, the blade (14) of the cylindrical cutter (5) is just aligned with the interface between the rubber inner ring (12) and the outer shell (11); Step 3, controlling the power system to run in a forward direction to move the drive tool holder (4) forward, thereby driving the cylindrical tool (5) to move forward and insert into the interface between the rubber inner ring (12) and the outer shell (11), and during the process of the cylindrical tool (5) moving forward, the rubber inner ring (12) is gradually peeled off; Step 4, when the cylindrical tool (5) moves to the target position, the power system is controlled to run in reverse to make the driving tool holder (4) retreat a standard length, and then the cylindrical plug body (6) is placed in the guide groove (8); Step 5, the power system is controlled to run forward again to move the driving knife seat (4) forward. After the knife seat (4) moves forward a standard length, the power system is controlled to run reversely again to move the driving knife seat (4) backward a standard length, and then a new cylindrical plug body (6) is continuously placed in the guide groove (8); Step 6, repeat step 5 several times until the blade (14) of the cylindrical tool (5) is brought into contact with the blocking body (2) and stops, then the tool holder (4) is controlled to reset and the rubber inner ring (12) is pulled out.

9. The method for stripping and recovering the rubber inner ring of a water-lubricated bearing according to claim 8, characterized in that: The standard length is 10-20 mm greater than the length of the cylindrical plug body (6).

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