TWI867974B - Bearing seat removal auxiliary tool - Google Patents

Abstract

This invention is a bearing seat disassembly auxiliary tool, which is used to disassemble the bearing seat. The bearing seat is assembled on the shaft center by means of a built-in shaft sleeve thread and a shaft sleeve nut. The bearing seat disassembly auxiliary tool includes a clamping steel plate, a screw and a clamping nut. The clamping steel plate can be inserted into the shaft center and abut against the shaft sleeve nut. The screw can connect the clamping steel plate and the bearing seat. The clamping nut can be screwed on the screw and pushed against the clamping nut. The steel plate is tightened, and the locking nut is rotated evenly so that the locking steel plate applies an even force to the sleeve nut, thereby pushing the sleeve up and loosening it, so as to complete the disassembly of the bearing seat. In this way, the user can use the bearing seat disassembly auxiliary tool to apply an even force to push the sleeve evenly when the working space is limited, thereby preventing the sleeve from deviating or getting stuck due to uneven force application, and increasing the convenience of the disassembly operation.

Description

Bearing seat removal auxiliary tool

The invention is a bearing seat disassembly auxiliary tool, in particular a bearing seat disassembly auxiliary tool for disassembling a bearing seat.

Bearings are components that support rotating shafts and are an indispensable part of power machinery. As Taiwan's industrial sector moves toward high automation, the demand for power machinery maintenance is growing year by year, and the disassembly of bearing equipment is an indispensable step in maintenance. Therefore, how to conveniently and accurately disassemble bearings without damaging the bearing structure or the machine itself during the disassembly process, while saving disassembly time to improve maintenance efficiency, has become an important issue. A bearing consists of five parts, including a nut, a sunshade, a screw, a bearing seat and a sleeve. The traditional disassembly method is to first loosen the nut and the sunshade to keep a proper distance between the nut and the bearing seat, then use a socket to hold the nut and use a pitot to knock the socket to loosen the sleeve, and then remove the nut, screw, bearing seat and sleeve.

However, since the disassembly of bearing equipment must be carried out inside the mechanical device, the working space is narrow, and it is difficult for maintenance personnel to knock accurately and evenly to apply force to the sleeve, which causes the sleeve to deviate or even get stuck tighter, forcing maintenance personnel to use handheld grinders or acetylene for hot work and destructive disassembly, which increases maintenance time and bearings cannot be reused, increasing maintenance costs. At the same time, the knocking process is not only easy to injure maintenance personnel, but also causes considerable vibration on the machine, which is very destructive to the mechanical structure of the machine itself used in the precision industry, not only reducing the service life of the mechanical equipment but also requiring additional maintenance costs, so there is still a need for improvement.

The main purpose of this invention is to provide a bearing seat disassembly auxiliary tool, hoping to improve the current bearing seat disassembly auxiliary tool which can only disassemble the bearing by knocking. When working in the narrow space inside the machine, the sleeve is not evenly applied, which causes the bearing seat to be difficult to disassemble. And for some machines used in precision industries, there will be problems such as vibration during knocking that damages the structure of the machine itself, thus making it difficult to apply and causing inconvenience.

To achieve the above-mentioned purpose, the present invention provides a bearing seat disassembly auxiliary tool, which is used to disassemble a bearing seat mounted on an axle. The bearing seat is assembled on the axle by screwing a built-in axle sleeve and a axle sleeve nut. The bearing seat disassembly auxiliary tool includes: A clamping steel plate, the center of which is formed with an opening, and the outer edge of the clamping steel plate is formed with a plurality of drill holes at intervals around it. The axle passes through the opening of the clamping steel plate, so that the clamping steel plate is mounted on the axle and abuts against the axle sleeve nut; A plurality of screws, which pass through the plurality of drill holes and are screwed on the bearing seat; and Multiple locking nuts are respectively screwed on the multiple screw rods and can abut against the front side of the locking steel plate so that the locking steel plate pushes the bushing nut.

The bearing seat disassembly auxiliary tool of the invention can be used to disassemble the bearing seat inside the machine, thereby completing the maintenance of the mechanical device. The bearing seat disassembly auxiliary tool of the invention can fix the clamping steel plate to the front side of the bearing seat by the plurality of screws, and then evenly rotate the plurality of clamping nuts so that the clamping steel plate evenly applies pressure to the sleeve nut screwed on the sleeve, thereby pushing the sleeve until it falls off the bearing seat, and removing the bearing seat from the axis, thereby completing the bearing seat disassembly operation inside the machine.

In this way, the user can use the bearing seat disassembly auxiliary tool to evenly apply force to the push sleeve evenly when the working space is limited. This can not only effectively prevent the sleeve from deviating or getting stuck due to uneven force application, but also increase the convenience of the disassembly operation. At the same time, since the entire disassembly operation does not involve any knocking steps, the safety of the disassembly operation is greatly improved and the damage to the machine structure caused by irregular vibration during the operation is reduced. The applicability of the bearing seat disassembly auxiliary tool in the disassembly of machine bearings in the precision industry is also increased.

In addition, the bearing seat disassembly auxiliary tool can further include a reinforcing steel plate and a plurality of fixing nuts, the reinforcing steel plate forms a notch extending from the center to the outer edge, and the diameter of the notch is larger than the outer diameter of the shaft, and the outer edge of the reinforcing steel plate is formed with a plurality of locking holes corresponding to the drilled holes of the clamping steel plate. The reinforcing steel plate can be inserted into the shaft from the notch and abut against the rear side of the bearing seat, and the plurality of fixing nuts can be inserted into the shaft from the notch and abut against the rear side of the bearing seat. The screw rods are respectively passed through the plurality of locking holes and screwed on the rear side of the bearing seat, and then a plurality of fixing nuts are respectively screwed on the plurality of screw rods and abut the reinforcing steel plate. When the operator rotates the clamping nut and pushes the bushing nut through the clamping steel plate, the reinforcing steel plate disperses the stress applied by the clamping steel plate to the bearing seat, thereby preventing the bearing seat from being deformed or causing unexpected damage due to excessive force.

In addition, the bearing seat disassembly auxiliary tool of the invention includes a plurality of self-lubricating gaskets, and an annular groove filled with lubricating oil is formed on two opposite sides of each self-lubricating gasket, and the plurality of self-lubricating gaskets are respectively arranged between the clamping steel plate and the plurality of clamping nuts. This allows the user to squeeze out the lubricating oil from the annular groove of the self-lubricating gasket when rotating the plurality of clamping nuts and applying force to the clamping steel plate, thereby reducing the friction between the clamping nut and the clamping steel plate, thereby reducing damage to the surface of the clamping steel plate, and at the same time increasing the convenience of the operation process.

Please refer to Figures 1 to 3, which are preferred embodiments of the bearing seat disassembly auxiliary tool of the present invention. The bearing seat disassembly auxiliary tool is used to disassemble a bearing seat 21 sleeved on a shaft 20. The bearing seat 21 is assembled on the shaft 20 by screwing a sleeve nut 23 on a built-in sleeve 22. The bearing seat disassembly auxiliary tool includes a clamping steel plate 10a, a plurality of screws 12 and a plurality of clamping nuts 13.

As shown in FIGS. 1 to 3 , the clamping steel plate 10a has an opening 101 in the center, and the outer edge of the clamping steel plate 10a forms a plurality of drill holes 102 that are spaced around. The axis 20 passes through the opening 101, so that the clamping steel plate 10a can be sleeved on the axis 20 and abut against the bushing nut 23. The plurality of screw rods 12 can pass through the plurality of drill holes 102 and be screwed on the bearing seat 21, respectively. The plurality of clamping nuts 13 are respectively screwed on the plurality of screw rods 12 and can abut against the front side of the clamping steel plate 10a.

As shown in FIG. 1, FIG. 2, and FIG. 5, a reinforcing steel plate 11 is provided at the rear side of the bearing seat 21. The reinforcing steel plate 11 forms a notch 111 extending from the center to the outer edge, and the diameter of the notch 111 is larger than the outer diameter of the shaft 20. The outer edge of the reinforcing steel plate 11 is formed with a plurality of locking holes 102 corresponding to the positions of the drill holes 102 of the clamping steel plate 10a. 12, the reinforcing steel plate 11 can be inserted into the shaft 20 from the notch 111 and abut against the rear side of the bearing seat 21, and the plurality of screws 12 are respectively passed through the plurality of locking holes 112 and screwed on the rear side of the bearing seat 21, and then a plurality of fixing nuts 15 are respectively screwed on the plurality of screws 12 and abut against the reinforcing steel plate 11.

As shown in FIG. 1 , FIG. 2 , and FIG. 6 , the bearing seat disassembly auxiliary tool of the present invention includes a plurality of self-lubricating gaskets 14 , and an annular groove 141 filled with lubricating oil is formed on two opposite sides of each self-lubricating gasket 14 , and the plurality of self-lubricating gaskets 14 are respectively arranged between the clamping steel plate 10 a and the plurality of clamping nuts 13 .

The clamping steel plates 10a, 10b of the present invention bearing seat disassembly auxiliary tool can be set into a variety of preferred embodiments according to the use requirements. As shown in FIG. 3, in the first preferred embodiment of the present invention bearing seat disassembly auxiliary tool, the clamping steel plate 10a is an integrally formed component; and as shown in FIG. 4, in the second preferred embodiment of the present invention bearing seat disassembly auxiliary tool, the clamping steel plate 10b can include an outer ring 103 and an inner sleeve 104, and the outer edge of the outer ring 103 is The plurality of drill holes 102 are formed with circumferential intervals, an assembly groove 105 and a through assembly hole 106 are formed at the center of one side surface of the outer ring 103, one side of the outer edge of the inner sleeve 104 protrudes to form an assembly convex portion 107, and the inner sleeve 104 forms the opening 101 at the center, the inner sleeve 104 can be detachably arranged in the assembly hole 106 of the outer ring 103, and the assembly convex portion 107 can cooperate with the assembly groove 105 of the outer ring 103.

Please refer to Figures 7 to 9 for a second preferred embodiment of the bearing seat disassembly auxiliary tool of the present invention and the implementation steps of the embodiment. As shown in Figure 7, before installing the bearing seat disassembly auxiliary tool, the operator can first loosen the sleeve nut 23 located at the front side of the bearing seat 21 and screwed on the sleeve 22, so that the sleeve nut 23 is at an appropriate distance from the bearing seat 21, and unscrew the screws fixing the bearing seat 21 and the mechanism body.

As shown in FIG8 , the operator can insert the reinforcing steel plate 11 into the shaft 20 from the notch 111 and abut against the rear side of the bearing seat 21, respectively pass the plurality of screws 12 through the plurality of locking holes 112 and screw through the bearing seat 21, and then respectively screw the plurality of fixing nuts 15 on the plurality of screws 12 and abut against the reinforcing steel plate 11, and then respectively align the plurality of drilled holes 102 of the clamping steel plate 10b on the front side of the bearing seat 21 and insert the plurality of screws 12. The shaft 20 is passed through the opening 101 of the clamping steel plate 10b, and the assembly protrusion 107 of the inner sleeve 104 can abut against the loosened bushing nut 23. After the plurality of self-lubricating washers 14 are respectively inserted into the front side of the clamping steel plate 10b on the plurality of screw rods 12, the plurality of clamping nuts 13 are respectively screwed on the plurality of screw rods 12, and the plurality of clamping nuts 13 and the plurality of self-lubricating washers 14 abut against the clamping steel plate 10b, so as to complete the setting of the bearing seat disassembly auxiliary tool.

As shown in FIG. 9 , when the operator is disassembling the bearing seat 21, the operator can evenly rotate and lock the plurality of locking nuts 13, so that the locking steel plate 10b evenly applies pressure to the sleeve nut 23, thereby pushing the sleeve 22 until it falls off the bearing seat 21, and removing the bearing seat 21 from the shaft 20, thereby completing the disassembly of the bearing seat 21.

As shown in FIG. 9 , when the clamping steel plate 10b applies force to push up the bushing nut 23, the assembly protrusion 107 of the inner sleeve 104 can push against the assembly groove 105 of the outer ring 103 to prevent the inner sleeve 104 and the outer ring 103 from loosening when force is applied, and the opening 101 of the inner sleeve 104 can be set to different inner diameters. The operator can replace the inner sleeve 104 with an opening 101 of different inner diameters according to the use requirements to fit the shaft 20 of different sizes, so that the bearing seat disassembly auxiliary tool of the present invention can be applied to disassembly of bearings of different sizes.

In addition, as shown in FIG. 2 and FIG. 9, when the operator rotates the locking nut 13 and pushes the sleeve nut 23 through the locking steel plates 10a, 10b, the reinforcing steel plate 11 can disperse the stress applied by the locking steel plates 10a, 10b to the mechanical equipment body, thereby preventing excessive force from causing damage to the equipment or other unexpected damage; When the operator rotates the locking nut 13, the lubricating oil is squeezed out from the annular groove 141 of the self-lubricating gasket 14 to reduce the friction between the locking nut 13 and the locking steel plates 10a, 10b, and reduce the force applied by the operator when rotating the locking nut 13, thereby reducing damage to the surface of the locking steel plates 10a, 10b.

In addition, as shown in FIGS. 1 to 4 , the plurality of drill holes 102 and the plurality of locking holes 112 are long slot holes. The provision of the long slot holes not only enables the processing of the clamping steel plates 10a, 10b and the reinforcing steel plate 11 to be applicable to the bearing seats 21 of different sizes, thereby reducing the manufacturing cost of the present bearing seat disassembly auxiliary tool, but also reduces the bending stress generated on the screw rod 12 when the clamping nut 13 pushes the clamping steel plates 10a, 10b, thereby improving the service life of the present bearing seat disassembly auxiliary tool.

In summary, the bearing seat disassembly auxiliary tool of the present invention can evenly rotate the plurality of locking nuts 13 to make the locking steel plates 10a, 10b evenly apply pressure to the sleeve nut 23, and push the sleeve 22 until it falls off, so as to complete the disassembly operation of the bearing seat 21. In this way, the user can use the bearing seat disassembly auxiliary tool to evenly apply force to push the sleeve evenly when the working space is limited. 22, not only can it effectively prevent the sleeve 22 from deviating or getting stuck due to uneven force application, and increase the convenience of the disassembly operation, but also because the entire disassembly operation does not involve any knocking steps, it also greatly improves the safety of the disassembly operation and reduces the damage to the machine structure caused by irregular vibration during the operation, and also increases the applicability of the bearing seat disassembly auxiliary tool in the disassembly of precision industrial machine bearings.

In addition, the reinforcing steel plate 11 is disposed at the rear side of the bearing seat 21, and the reinforcing steel plate 11 can disperse the stress applied to the bearing seat 21 when the pressing steel plates 10a, 10b push the sleeve 22, thereby preventing the bearing seat 21 from being deformed or unexpectedly damaged due to excessive force. At the same time, the plurality of self-lubricating gaskets 14 are also arranged between the clamping steel plates 10a, 10b and the plurality of clamping nuts 13, so that when the user rotates the plurality of clamping nuts 13 and applies force to the clamping steel plates 10a, 10b, the lubricating oil can be squeezed out from the self-lubricating gaskets 14 to reduce the friction between the clamping nuts 13 and the clamping steel plates 10a, 10b, and reduce the force applied by the operator when rotating the clamping nuts 13, thereby reducing damage to the surface of the clamping steel plates 10a, 10b, and increasing the convenience of the operation process.

10a, 10b: Clamping steel plate 101: Opening 102: Drilling hole 103: Outer ring 104: Inner sleeve 105: Assembly groove 106: Assembly hole 107: Assembly convex part 11: Reinforcement steel plate 111: Notch 112: Locking hole 12: Screw 13: Clamping nut 14: Self-lubricating gasket 141: Annular groove 15: Fixing nut 20: Shaft 21: Bearing seat 22: Bushing 23: Bushing nut

Figure 1: A three-dimensional schematic diagram of the first preferred embodiment of the bearing seat disassembly auxiliary tool of the present invention applied to the bearing seat. Figure 2: A three-dimensional schematic diagram of the first preferred embodiment of the bearing seat disassembly auxiliary tool of the present invention applied to the bearing seat. Figure 3: A plane view of the clamping steel plate of the first preferred embodiment of the bearing seat disassembly auxiliary tool of the present invention. Figure 4: A three-dimensional schematic diagram of the outer ring and inner sleeve of the clamping steel plate of the second preferred embodiment of the bearing seat disassembly auxiliary tool of the present invention. Figure 5: A plane view of the reinforcing steel plate of the bearing seat disassembly auxiliary tool of the present invention. Figure 6: A three-dimensional cross-sectional diagram of the self-lubricating pad of the bearing disassembly auxiliary tool of the present invention. Figure 7: A schematic diagram of the operation flow of the second preferred embodiment of the bearing disassembly auxiliary tool of the present invention applied to the disassembly of the bearing seat (I). Figure 8: A schematic diagram of the operation flow of the second preferred embodiment of the bearing disassembly auxiliary tool of the present invention applied to the disassembly of the bearing seat (II). Figure 9: A schematic diagram of the operation flow of the second preferred embodiment of the bearing disassembly auxiliary tool of the present invention applied to the disassembly of the bearing seat (III).

10a: Clamping steel plate

102: Drilling

11: Reinforcement steel plate

12: Screw

13: Tighten the nut

14: Self-lubricating pad

15:Fixing nut

20: Axis

21: Bearing seat

Claims (8)

A bearing seat disassembly auxiliary tool is used to disassemble a bearing seat sleeved on a shaft center. The bearing seat is assembled on the shaft center by screwing a shaft sleeve nut on a built-in shaft sleeve. The bearing seat disassembly auxiliary tool comprises: a clamping steel plate with an opening formed in the center and a plurality of drill holes formed on the outer edge of the clamping steel plate at intervals. The shaft center is The opening of the clamping steel plate allows the clamping steel plate to be sleeved on the shaft center and abut against the bushing nut; a plurality of screws, which pass through the plurality of drill holes and are screwed on the bearing seat; and a plurality of clamping nuts, which are screwed on the plurality of screws and can abut against the front side of the clamping steel plate, so that the clamping steel plate pushes the bushing nut. The bearing seat disassembly auxiliary tool as described in claim 1, wherein the bearing seat disassembly auxiliary tool comprises a reinforcing steel plate and a plurality of fixing nuts, the reinforcing steel plate forms a notch extending from the center to the outer edge, the diameter of the notch is larger than the outer diameter of the axis, and the outer edge of the reinforcing steel plate is formed with a position corresponding to the drill hole of the clamping steel plate. Multiple locking holes, the multiple locking holes are long slot holes, the reinforcing steel plate can be inserted into the axis from the notch and abut against the rear side of the bearing seat, and the multiple screws are respectively passed through the multiple locking holes and screwed on the rear side of the bearing seat, and the multiple fixing nuts are respectively screwed on the multiple screws and abut against the reinforcing steel plate. A bearing seat disassembly assisting tool as described in claim 1 or 2, wherein the bearing seat disassembly assisting tool comprises a plurality of self-lubricating gaskets, and an annular groove filled with lubricating oil is formed on two opposite sides of each self-lubricating gasket, and the plurality of self-lubricating gaskets are respectively arranged between the clamping steel plate and the plurality of clamping nuts. The bearing seat disassembly auxiliary tool as described in claim 1 or 2, wherein the clamping steel plate comprises an outer ring and an inner sleeve, the outer edge of the outer ring forms the plurality of drill holes spaced around, the center of one side of the outer ring forms an assembly groove and a through assembly hole, one side of the outer edge of the inner sleeve protrudes to form an assembly convex portion, and the inner sleeve forms the opening at the center, the inner sleeve can be disassembled and arranged in the assembly hole of the outer ring, and the assembly convex portion can cooperate with the assembly groove of the outer ring. As described in claim 3, the bearing seat disassembly auxiliary tool, wherein the clamping steel plate includes an outer ring and an inner sleeve, the outer edge of the outer ring forms the plurality of drill holes spaced around, the center of one side of the outer ring forms an assembly groove and a through assembly hole, one side of the outer edge of the inner sleeve protrudes to form an assembly convex portion, and the inner sleeve forms the opening at the center, the inner sleeve can be disassembled and arranged in the assembly hole of the outer ring, and the assembly convex portion can cooperate with the assembly groove of the outer ring. A bearing seat disassembly auxiliary tool as described in claim 1 or 2, wherein the plurality of drill holes are long slot holes. A bearing seat disassembly auxiliary tool as described in claim 3, wherein the plurality of drill holes are long slot holes. A bearing seat disassembly auxiliary tool as described in claim 4, wherein the plurality of drill holes are long slot holes.

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