A puller device and method for disassembling a bearing outer ring

Abstract

The application discloses a pulling device and method for disassembling bearing outer rings and relates to the technical field of bearing disassembling auxiliary tools. The inner wall of the barrel rod is slidably connected with a cylindrical rod, the bottom end of the cylindrical rod is rotationally connected with a pressing plate, the inner wall of the pressing plate is slidably connected with sliding plates at both ends, the bottom end of the pressing plate is provided with an adjusting device, the adjusting device comprises a threaded barrel, a groove and two rectangular grooves are formed in the bottom end of the pressing plate, and first screw rods are fixedly connected with one side of the two rectangular blocks respectively. The adjusting device is arranged, when the pulling device is used, the threaded barrel at the bottom end of the pressing plate is rotated to control the movement of the two first screw rods, the two sliding plates are driven to slide on the inner wall of the pressing plate, the length of the sliding plates extending out of or into the pressing plate is changed and fixed, the total length of the pressing plate and the sliding plates can be adapted to bearings of different sizes, and the practicality and flexibility of the pulling device are improved.

Description

Technical Field

[0001] This invention relates to the field of bearing disassembly and assembly auxiliary tools, and in particular to a disassembly device and method for disassembling the outer ring of a bearing. Background Technology

[0002] Currently, during the assembly of aero engines, the disassembly of the bearing outer ring fixed to the bearing housing is mostly carried out using hydrostatic disassembly. The principle is to utilize a multi-jaw structure with three or more jaws, a certain degree of telescopic release function, and a threaded pressing disassembly method. During operation, the jaws are first retracted to the converged state, the fixture is placed on the surface of the housing, the jaws are released downwards to the designated position, and then the jaws are extended outwards until the end face of the bearing outer ring is fixed. Then, the threaded connecting rod is pressed until the bearing outer ring is removed.

[0003] The inventors discovered that when using the hydrostatic decomposition method, a multi-jaw structure with three or more jaws must be selected, and it must also have a telescopic function and a threaded structure for spin extraction. This results in a tooling structure that is heavy and bulky, and complex to operate. Furthermore, since the release and extension of the jaws are both done blindly, decomposition failure is very likely to occur.

[0004] To address the issues of heavy and bulky tooling structures, complex operation, and the high risk of disassembly failure due to blind operation during the release and extension of the puller claws, existing technology employs a rotating connection design for the pressure plate assembly. This assembly consists of a pressure plate and a connecting rod, allowing the pressure plate to rotate a certain angle to the left and right. During bearing outer ring removal, the pressure plate tilts at a certain angle to enter the bottom of the bearing outer ring and is quickly positioned via an arc-shaped step. Pulling the connecting rod through the pressure plate completes the bearing removal. However, when removing bearings of different sizes, the pressure plate assembly at the bottom of the pull rod needs to be removed and replaced with a different sized pressure plate, resulting in low flexibility and practicality when using the removal device. Summary of the Invention

[0005] This invention addresses the problem that when removing bearings of different sizes, it is necessary to disassemble the pressure plate assembly at the bottom of the pull rod and replace it with a pressure plate of a different size, resulting in low flexibility and practicality when using the removal device. Therefore, this invention proposes a removal device and method for disassembling the outer ring of a bearing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a device and method for disassembling the outer ring of a bearing, comprising a cylindrical rod, a lifting hammer fixedly connected to the outer surface of the cylindrical rod, a cylindrical rod slidably connected to the inner wall of the cylindrical rod, a pressure plate rotatably connected to the bottom end of the cylindrical rod, sliding plates slidably connected to both ends of the inner wall of the pressure plate, an arc-shaped step provided at the end of the sliding plate away from the pressure plate, an adjusting device provided at the bottom end of the pressure plate, the adjusting device comprising a threaded cylinder, a groove and two rectangular slots opened at the bottom end of the pressure plate, the two rectangular slots being located on the left and right sides of the groove respectively, the two ends of the outer surface of the threaded cylinder being rotatably connected to the two ends of the inner wall of the groove, rectangular blocks being fixedly connected to the bottom ends of the two sliding plates respectively, and first screws being fixedly connected to one side of the two rectangular blocks respectively, the thread directions of the two first screws being opposite.

[0007] The effect achieved by the above components is as follows: By setting the first screw, when using the removal device to separate the outer ring of the bearing from the bearing seat, the threaded cylinder is first pushed to rotate at the groove at the bottom of the pressure plate according to the diameter of the bearing, so that the two ends of the threaded cylinder rotate on the inner wall of the groove. The two first screws are controlled to move in the same or opposite directions on the inner wall of the threaded cylinder, which drives the rectangular blocks at the bottom of the two sliding plates to slide on the inner wall of the two rectangular grooves respectively. At the same time, the sliding plates will slide on the inner wall of the pressure plate, and the length of the two sliding plates extending or retracting into the pressure plate is adjusted synchronously to change the length of the two sliding plates extending or retracting into the pressure plate. The total length of the pressure plate and the two sliding plates is fixed. Then, the pressure plate is pushed to rotate at a certain angle to the cylindrical rod. The sliding plate with one end of the pressure plate at the bottom is inserted into the bearing and positioned between the outer ring and the bearing seat. The curved step at one end of the sliding plate is used for positioning. Then, the lifting hammer is pushed down to flatten the other end of the sliding plate. The lifting hammer is pulled up, and the amount of movement of the outer ring of the bearing is observed. Based on the amount of movement, the lifting force and frequency are determined. When the outer ring of the bearing is about to come out of the bearing seat, the lifting action is stopped, and then the outer ring of the bearing is removed.

[0008] Preferably, positioning blocks are fixedly connected to both sides of the rectangular block, and one side of the positioning block slides on the outer surface of the pressure plate.

[0009] The effect achieved by the above components is as follows: when the rotating threaded cylinder drives the two first screws and the rectangular block to move, the positioning blocks on both sides of the rectangular block will slide on one side of the bottom of the pressure plate, further restricting the angle between the rectangular block and the rectangular groove, and between the sliding plate and the pressure plate, so as to avoid shaking when the rectangular block and the sliding plate move.

[0010] Preferably, a plurality of protruding strips are fixedly connected to the outer surface of the threaded cylinder. The protruding strips are made of rubber and are distributed circumferentially on the outer surface of the threaded cylinder.

[0011] The effect achieved by the above components is that: pressing the rubber protrusion on the outer surface of the threaded cylinder with your hand increases the friction between your hand and the outer surface of the threaded cylinder, making it more convenient and less likely to slip when pushing the threaded cylinder to rotate and adjust the position of the two first screws and the sliding plate.

[0012] Preferably, the bottom end of the sliding plate is fixedly connected to two inclined rods, which form a certain angle with the sliding plate. The end of the inclined rod away from the sliding plate is fixedly connected to a collar, and the inner wall of the collar is fixedly connected to the outer surface of the first screw.

[0013] The effect achieved by the above components is that when the outer ring of the bearing is lifted upward by the sliding plate, the bottom end of the sliding plate can be supported by the diagonal bar, so as to avoid uneven force on the end of the sliding plate with the arc step and the end near the pressure plate, which would cause deformation of the sliding plate and improve the durability of the removal device.

[0014] Preferably, two round rods are fixedly connected to one side of the collar, and a plurality of positioning holes are provided on the outer surface of the pressure plate. The outer surface of the round rods slides on the inner wall of the positioning holes. A positioning ring is fixedly connected to the end of the two round rods away from the collar, and the positioning ring slides on the outer surface of the threaded cylinder.

[0015] The effect achieved by the above components is as follows: when the rotating threaded cylinder controls the movement of the two first screws and the sliding plate, the round rod will slide on the inner wall of the positioning hole, and the positioning ring will slide on the outer surface of the threaded cylinder. The round rod and the positioning ring can further limit the angle between the rectangular block, the sliding plate and the pressure plate, and avoid the angle between the sliding plate and the pressure plate from deflecting as much as possible, so as to affect the normal use of the unloading device.

[0016] Preferably, the outer surface of the cylindrical rod is provided with a telescopic device, the telescopic device including a second screw, one end of the second screw being fixedly connected to one side of the top end of the cylindrical rod, a sector block being slidably connected to the outer surface of the second screw, a threaded ring being threadedly connected to the outer surface of the second screw, the sector block being located between the threaded ring and the cylindrical rod, and a sliding groove being opened on the outer surface of the cylindrical rod, the outer surface of the second screw sliding on the inner wall of the sliding groove.

[0017] The effects achieved by the above components are as follows: When using the extraction device, the cylinder rod can be pulled or pushed to slide up and down on the outer surface of the cylindrical rod to adjust the relative position of the cylinder rod and the cylindrical rod, changing the total length of the cylinder rod and the cylindrical rod for use according to different needs. At the same time, the second screw will slide on the inner wall of the groove. Rotating the threaded ring causes the threaded ring to move on the outer surface of the second screw, pushing the sector block to slide towards the cylindrical rod. Pressing one side of the sector block against the outer surface of the cylinder rod can fix the relative position of the cylinder rod and the cylindrical rod. When the extraction device is not used, most of the cylindrical rod can be retracted into the cylinder rod, shortening the total length of the cylinder rod and the cylindrical rod, making it easier to store the extraction device.

[0018] Preferably, a plurality of anti-slip strips are fixedly connected to one side of the sector block. The anti-slip strips are made of rubber and are linearly distributed on one side of the sector block.

[0019] The effect achieved by the above components is as follows: when the threaded ring is rotated and pushes the sector block to press the side of the sector block with the rubber anti-slip strip against the outer surface of the cylinder, the friction between the sector block and the outer surface of the cylinder can be increased, making the sector block more stable and less prone to accidental slippage when it is pressed against the outer surface of the cylinder and fixed in position.

[0020] Preferably, a stop block is fixedly connected to the end of the second screw away from the cylindrical rod, and the length of the stop block is greater than the diameter of the second screw.

[0021] The effect achieved by the above components is that the movement range of the threaded ring on the outer surface of the second screw can be limited by the stop block, so as to avoid the threaded ring from falling off the surface of the second screw and being lost when it is rotated to move away from the cylindrical rod.

[0022] Preferably, a sliding rod is fixedly connected to one side of the top end of the cylindrical rod, the outer surface of the sliding rod slides on the inner wall of the groove, and a slider is fixedly connected to one end of the sliding rod, the side of the slider slides on the outer surface of the cylindrical rod.

[0023] The effect achieved by the above components is that when the push rod slides on the outer surface of the cylindrical rod, the sliding rod slides on the inner wall of the groove and the slider slides on the outer surface of the rod, further limiting the angle between the cylindrical rod and the push rod, and minimizing the deviation of the angle between the push rod and the cylindrical rod when the hammer is pulled upward.

[0024] Preferably, it also includes a removal method for a removal device for disassembling the bearing outer ring, comprising the following steps: S1. First, place the pressure plate on the ground. According to the usage requirements, push the cylinder rod to slide up and down on the outer surface of the cylindrical rod to adjust the total length of the cylinder rod and the cylindrical rod. Then, fix it with the telescopic device for easy use. S2. Adjust the horizontal position of the two sliding plates inside the pressure plate according to the size of the bearing using the adjusting device, change the total length of the pressure plate and the two sliding plates, and then fix it. S3. Push the pressure plate to rotate at a certain angle to the cylindrical rod. Insert the sliding plate with one end of the pressure plate at the bottom into the bearing, between the outer ring and the bearing seat. Use the arc-shaped step at one end of the sliding plate for positioning. Then push the lifting hammer down to flatten the sliding plate at the other end. Pull the lifting hammer up and observe the amount of movement of the outer ring of the bearing. Based on the amount of movement, determine the lifting force and frequency. When the outer ring of the bearing is about to come out of the bearing seat, stop the lifting action and then remove the outer ring of the bearing.

[0025] In summary, the beneficial effects of the present invention are as follows: By setting an adjustment device, when using the removal device, the two first screws are moved by rotating the threaded cylinder at the bottom of the pressure plate, which drives the two sliding plates to slide on the inner wall of the pressure plate. This changes the length of the sliding plates extending or retracting into the pressure plate and fixes them, so that the total length of the pressure plate and the sliding plates can be adapted to bearings of different sizes, thus improving the practicality and flexibility of the removal device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the cylinder rod of the present invention; Figure 3 This is the present invention. Figure 2 A magnified three-dimensional structural diagram of point A; Figure 4 This is a three-dimensional structural diagram of the pressure plate of the present invention; Figure 5 This is a three-dimensional structural diagram of the threaded cylinder of the present invention; Figure 6 This is a three-dimensional structural diagram of the sliding plate of the present invention; Figure 7 This is a three-dimensional structural diagram of the slider of the present invention; Figure 8 This is a three-dimensional structural diagram of the cylindrical rod of the present invention; Figure 9 This is the present invention. Figure 8 A magnified three-dimensional structural diagram of part B.

[0027] Explanation of reference numerals in the attached figures: 1. Cylinder rod; 2. Adjusting device; 3. Telescopic device; 4. Cylindrical rod; 5. Lifting hammer; 6. Pressure plate; 7. Sliding plate; 21. Groove; 22. Threaded cylinder; 23. Rectangular block; 24. Rectangular slot; 25. First screw; 26. Positioning block; 27. Protruding strip; 28. Diagonal rod; 29. ​​Collar; 210. Round rod; 211. Positioning hole; 212. Positioning ring; 31. Slide groove; 32. Second screw; 33. Threaded ring; 34. Sector block; 35. Anti-slip strip; 36. Stop block; 37. Sliding rod; 38. Sliding block. Detailed Implementation

[0028] Reference Figure 1-4As shown, this embodiment discloses a device and method for disassembling the outer ring of a bearing, including a cylindrical rod 1. A lifting hammer 5 is fixedly connected to the outer surface of the cylindrical rod 1. A cylindrical rod 4 is slidably connected to the inner wall of the cylindrical rod 1. A pressure plate 6 is rotatably connected to the bottom end of the cylindrical rod 4. Sliding plates 7 are slidably connected to both ends of the inner wall of the pressure plate 6. An arc-shaped step is provided at the end of the sliding plate 7 away from the pressure plate 6. An adjusting device 2 is provided at the bottom end of the pressure plate 6. The adjusting device 2 includes a threaded cylinder 22. A groove 21 and two rectangular slots 24 are opened at the bottom end of the pressure plate 6. The two rectangular slots 24 are located on the left and right sides of the groove 21, respectively. The two ends of the outer surface of the threaded cylinder 22 are rotatably connected to the two ends of the inner wall of the groove 21. Rectangular blocks 23 are fixedly connected to the bottom ends of the two sliding plates 7, and first screws 25 are fixedly connected to one side of each of the two rectangular blocks 23. The threads on the outer surfaces of the two first screws 25 are in opposite directions. By setting the first screws 25, when using the removal device to separate the bearing outer ring from the bearing seat, the threaded cylinder 22 is first pushed to rotate at the groove 21 at the bottom end of the pressure plate 6 according to the bearing diameter, causing the two ends of the threaded cylinder 22 to rotate on the inner wall of the groove 21, thus controlling the two first screws 25 to rotate in the same or opposite directions on the inner wall of the threaded cylinder 22. The direction of movement causes the rectangular blocks 23 at the bottom of the two sliding plates 7 to slide on the inner walls of the two rectangular grooves 24 respectively. At the same time, the sliding plates 7 will slide on the inner wall of the pressure plate 6. The length of the two sliding plates 7 extending or retracting into the pressure plate 6 is adjusted synchronously, changing the total length of the pressure plate 6 and the two sliding plates 7 and fixing it. Then, the pressure plate 6 is pushed to rotate at a certain angle with the cylindrical rod 4. The sliding plate 7 with one end of the pressure plate 6 at the bottom is first inserted into the bearing, located between the outer ring and the bearing seat, and positioned using the arc-shaped step at one end of the sliding plate 7. Then, the lifting hammer 5 is pushed down to flatten the other end of the sliding plate 7, and the lifting hammer is pulled up. Pull the hammer 5 and observe the amount of movement of the outer ring of the bearing. Based on the amount of movement, determine the pulling force and frequency. When the outer ring of the bearing is about to come out of the bearing seat, stop the pulling action and then take out the outer ring of the bearing. By setting the adjustment device 2, when using the removal device, the two first screws 25 are moved by rotating the threaded cylinder 22 at the bottom of the pressure plate 6, which drives the two sliding plates 7 to slide on the inner wall of the pressure plate 6. The length of the sliding plates 7 extending or retracting into the pressure plate 6 is changed and fixed, so that the total length of the pressure plate 6 and the sliding plates 7 can be adapted to bearings of different sizes, improving the practicality and flexibility of the removal device.

[0029] Reference Figure 2-6As shown, this embodiment discloses that positioning blocks 26 are fixedly connected to both sides of the rectangular block 23. One side of the positioning block 26 slides on the outer surface of the pressure plate 6. When the threaded cylinder 22 is rotated to drive the two first screws 25 and the rectangular block 23 to move, the positioning blocks 26 on both sides of the rectangular block 23 will slide on the bottom side of the pressure plate 6, further restricting the angle between the rectangular block 23 and the rectangular groove 24, the sliding plate 7 and the pressure plate 6, and minimizing the shaking of the rectangular block 23 and the sliding plate 7 when they move. Several protrusions 27 are fixedly connected to the outer surface of the threaded cylinder 22. The protrusions 27 are made of rubber and are distributed circumferentially on the outer surface of the threaded cylinder 22. Pressing the rubber protrusions 27 on the outer surface of the threaded cylinder 22 with your hand can increase the friction when your hand contacts the outer surface of the threaded cylinder 22, making it more convenient and less likely to slip when pushing the threaded cylinder 22 to rotate and adjust the position of the two first screws 25 and the sliding plate 7.

[0030] Reference Figure 2-6 As shown in the figure, this embodiment discloses that the bottom end of the sliding plate 7 is fixedly connected to two inclined rods 28. The two inclined rods 28 form a certain angle with the sliding plate 7. The end of the inclined rod 28 away from the sliding plate 7 is fixedly connected to a collar 29. The inner wall of the collar 29 is fixedly connected to the outer surface of the first screw 25. When the outer ring of the bearing is lifted upward by the sliding plate 7, the bottom end of the sliding plate 7 can be supported by the inclined rods 28, so as to avoid the uneven force on the end of the sliding plate 7 with the arc step and the end near the pressure plate 6, which would cause the sliding plate 7 to deform and improve the durability of the unloading device.

[0031] Reference Figure 2-6 As shown in the figure, this embodiment discloses two round rods 210 fixedly connected to one side of the collar 29. The outer surface of the pressure plate 6 is provided with a plurality of positioning holes 211. The outer surface of the round rods 210 slides on the inner wall of the positioning holes 211. The two round rods 210 are fixedly connected to a positioning ring 212 at the end away from the collar 29. The positioning ring 212 slides on the outer surface of the threaded cylinder 22. When the threaded cylinder 22 is rotated to control the movement of the two first screws 25 and the sliding plate 7, the round rods 210 will slide on the inner wall of the positioning holes 211 and the positioning ring 212 will slide on the outer surface of the threaded cylinder 22. The round rods 210 and the positioning ring 212 can further limit the angle between the rectangular block 23, the sliding plate 7 and the pressure plate 6, and avoid the angle between the sliding plate 7 and the pressure plate 6 from being skewed, so as to affect the normal use of the unloading device.

[0032] Reference Figure 1 , Figure 2 , Figure 7 and Figure 8 as well as Figure 9As shown, this embodiment discloses a telescopic device 3 provided on the outer surface of the cylindrical rod 4. The telescopic device 3 includes a second screw 32, one end of which is fixedly connected to one side of the top end of the cylindrical rod 4. A sector-shaped block 34 is slidably connected to the outer surface of the second screw 32, and a threaded ring 33 is threadedly connected to the outer surface of the second screw 32. The sector-shaped block 34 is located between the threaded ring 33 and the cylindrical rod 4. A groove 31 is provided on the outer surface of the cylindrical rod 1, and the outer surface of the second screw 32 slides on the inner wall of the groove 31. When using the removal device, the cylindrical rod 1 can be pulled or pushed to slide up and down on the outer surface of the cylindrical rod 4. The relative positions of the cylindrical rod 1 and the cylindrical rod 4 are adjusted to change the total length of the cylindrical rod 1 and the cylindrical rod 4 for use according to different needs. At the same time, the second screw 32 will slide on the inner wall of the slide groove 31. Rotating the threaded ring 33 causes the threaded ring 33 to move on the outer surface of the second screw 32, pushing the sector block 34 to slide towards the cylindrical rod 4. Pressing one side of the sector block 34 against the outer surface of the cylindrical rod 1 can fix the relative positions of the cylindrical rod 1 and the cylindrical rod 4. When the unloading device is not used, most of the cylindrical rod 4 can be retracted into the cylindrical rod 1, shortening the total length of the cylindrical rod 1 and the cylindrical rod 4, which is convenient for storing the unloading device.

[0033] Reference Figure 2 , Figure 7 and Figure 8 as well as Figure 9 As shown, this embodiment discloses that a plurality of anti-slip strips 35 are fixedly connected to one side of the sector block 34. The anti-slip strips 35 are made of rubber and are linearly distributed on one side of the sector block 34. When the threaded ring 33 is rotated to push the sector block 34 and press the side of the sector block 34 with the rubber anti-slip strips 35 against the outer surface of the cylinder rod 1, the friction between the sector block 34 and the outer surface of the cylinder rod 1 can be increased. This makes the sector block 34 more stable and less prone to accidental slippage when it is pressed against the outer surface of the cylinder rod 1. A stop block 36 is fixedly connected to the end of the second screw 32 away from the cylindrical rod 4. The length of the stop block 36 is greater than the diameter of the second screw 32. The stop block 36 can limit the movement range of the threaded ring 33 on the outer surface of the second screw 32, and prevent the threaded ring 33 from falling off the surface of the second screw 32 and being lost when it is rotated to move away from the cylindrical rod 4.

[0034] Reference Figure 2 , Figure 7 and Figure 8 as well as Figure 9As shown, this embodiment discloses a sliding rod 37 fixedly connected to one side of the top end of the cylindrical rod 4. The outer surface of the sliding rod 37 slides on the inner wall of the groove 31. A slider 38 is fixedly connected to one end of the sliding rod 37. One side of the slider 38 slides on the outer surface of the cylindrical rod 1. When the cylindrical rod 1 is pushed to slide on the outer surface of the cylindrical rod 4, the sliding rod 37 will slide on the inner wall of the groove 31 and the slider 38 will slide on the outer surface of the cylindrical rod 1. This further restricts the angle between the cylindrical rod 4 and the cylindrical rod 1, and avoids the angle between the cylindrical rod 1 and the cylindrical rod 4 from deflecting when the lifting hammer 5 is pulled upward as much as possible.

[0035] The working principle is as follows: When using the removal device to separate the outer ring of the bearing from the bearing seat, first place the pressure plate 6 on the ground, pull or push the cylinder rod 1 to slide up and down on the outer surface of the cylindrical rod 4 to adjust the relative position of the cylinder rod 1 and the cylindrical rod 4, and change the total length of the cylinder rod 1 and the cylindrical rod 4 to facilitate use according to different needs. At the same time, the second screw 32 will slide on the inner wall of the slide groove 31. Rotate the threaded ring 33 to move the threaded ring 33 on the outer surface of the second screw 32 and push the sector block 34 to slide towards the cylindrical rod 4. Press one side of the sector block 34 against the outer surface of the cylinder rod 1 to fix the relative position of the cylinder rod 1 and the cylindrical rod 4. Then, according to the diameter of the bearing, push the threaded cylinder 22 to rotate at the groove 21 at the bottom of the pressure plate 6, so that the two ends of the threaded cylinder 22 rotate on the inner wall of the groove 21, and control the two first screws 25 on the inner wall of the threaded cylinder 22. Move in the same or opposite directions, causing the rectangular blocks 23 at the bottom of the two sliding plates 7 to slide on the inner walls of the two rectangular grooves 24 respectively. At the same time, the sliding plates 7 will slide on the inner wall of the pressure plate 6. Simultaneously adjust the length of the two sliding plates 7 extending or retracting into the pressure plate 6, change the total length of the pressure plate 6 and the two sliding plates 7 and fix it. Then push the pressure plate 6 to rotate at a certain angle with the cylindrical rod 4. Insert the sliding plate 7 with one end of the pressure plate 6 at the bottom into the bearing, between the outer ring and the bearing seat, and use the arc-shaped step at one end of the sliding plate 7 for positioning. Then push the lifting hammer 5 downward to flatten the sliding plate 7 at the other end. Pull the lifting hammer 5 upward and observe the amount of movement of the outer ring of the bearing. Based on the amount of movement, confirm the lifting force and frequency. When the outer ring of the bearing is about to come out of the bearing seat, stop the lifting action and then take out the outer ring of the bearing.

Claims

1. A disassembly device for disassembling the outer ring of a bearing, comprising a cylinder (1), characterized in that: A lifting hammer (5) is fixedly connected to the outer surface of the cylinder rod (1). A cylindrical rod (4) is slidably connected to the inner wall of the cylinder rod (1). A pressure plate (6) is rotatably connected to the bottom end of the cylindrical rod (4). Sliding plates (7) are slidably connected to both ends of the inner wall of the pressure plate (6). An arc-shaped step is provided at the end of the sliding plate (7) away from the pressure plate (6). An adjusting device (2) is provided at the bottom end of the pressure plate (6). The adjusting device (2) includes a threaded cylinder (22). A groove (21) and two rectangular slots (24) are opened at the bottom end of the pressure plate (6). The two rectangular slots (24) are located on the left and right sides of the groove (21) respectively. The two ends of the outer surface of the threaded cylinder (22) are connected to the inner wall of the groove (21). The two sliding plates (7) are connected by a rotating joint. A rectangular block (23) is fixedly connected to the bottom of each sliding plate (7). A first screw (25) is fixedly connected to one side of each rectangular block (23). The threads on the outer surfaces of the two first screws (25) are opposite in direction. A positioning block (26) is fixedly connected to both sides of each rectangular block (23). One side of the positioning block (26) slides on the outer surface of the pressure plate (6). Several protruding strips (27) are fixedly connected to the outer surface of the threaded cylinder (22). The protruding strips (27) are made of rubber and are circumferentially distributed on the outer surface of the threaded cylinder (22). Two inclined rods (28) are fixedly connected to the bottom of each sliding plate (7). The two inclined rods (28) are connected to... The sliding plates (7) are at a certain angle to each other. The end of the inclined rod (28) away from the sliding plate (7) is fixedly connected to a collar (29). The inner wall of the collar (29) is fixedly connected to the outer surface of the first screw (25). Two round rods (210) are fixedly connected to one side of the collar (29). The outer surface of the pressure plate (6) is provided with several positioning holes (211). The outer surface of the round rods (210) slides on the inner wall of the positioning holes (211). The end of the two round rods (210) away from the collar (29) is fixedly connected to a positioning ring (212). The positioning ring (212) slides on the outer surface of the threaded cylinder (22). The outer surface of the cylindrical rod (4) is provided with a telescopic device (3). (3) Includes a second screw (32), one end of which is fixedly connected to one side of the top end of the cylindrical rod (4), a sector block (34) is slidably connected to the outer surface of the second screw (32), a threaded ring (33) is threadedly connected to the outer surface of the second screw (32), the sector block (34) is located between the threaded ring (33) and the cylindrical rod (4), a groove (31) is opened on the outer surface of the cylindrical rod (1), and the outer surface of the second screw (32) slides on the inner wall of the groove (31); a number of anti-slip strips (35) are fixedly connected to one side of the sector block (34), the anti-slip strips (35) are made of rubber, and the anti-slip strips (35) are linearly distributed on one side of the sector block (34);A stop block (36) is fixedly connected to the end of the second screw (32) away from the cylindrical rod (4), the length of which is greater than the diameter of the second screw (32); a sliding rod (37) is fixedly connected to one side of the top end of the cylindrical rod (4), the outer surface of which slides on the inner wall of the groove (31), and a slider (38) is fixedly connected to one end of the sliding rod (37), one side of which slides on the outer surface of the cylindrical rod (1).

2. A method for removing parts, characterized in that: The removal device for the removal device for disassembling the outer ring of a bearing as described in claim 1 includes the following steps: S1. First, place the pressure plate (6) on the ground. According to the usage requirements, push the cylinder rod (1) to slide up and down on the outer surface of the cylindrical rod (4) to adjust the total length of the cylinder rod (1) and the cylindrical rod (4), and fix it with the telescopic device (3) for easy use. S2. Adjust the horizontal position of the two sliding plates (7) inside the pressure plate (6) according to the size of the bearing by adjusting the device (2), change the total length of the pressure plate (6) and the two sliding plates (7) and fix them; S3. Push the pressure plate (6) to rotate at a certain angle to the cylindrical rod (4). Insert the sliding plate (7) with one end of the pressure plate (6) at the bottom into the bearing, between the outer ring and the bearing seat. Use the arc-shaped step at one end of the sliding plate (7) to position it. Then push the lifting hammer (5) down to flatten the sliding plate (7) at the other end. Pull the lifting hammer (5) up and observe the amount of movement of the outer ring of the bearing. Based on the amount of movement, confirm the lifting force and frequency. When the outer ring of the bearing is about to come out of the bearing seat, stop the lifting action and then take out the outer ring of the bearing.

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