Bearing disassembling and assembling device for main shaft system

Abstract

The utility model discloses a bearing dismounting device for a main shaft system, which relates to the technical field of wind generating sets and comprises a dismounting component, and a main shaft is arranged in a bearing seat; the rear bearing outer ring is sleeved on the rear bearing inner ring, the rear bearing outer ring is arranged on the bearing seat, and the rear bearing inner ring is sleeved on the main shaft; the front bearing outer ring is sleeved on the front bearing inner ring, the front bearing outer ring is arranged on the bearing seat, and the front bearing inner ring is sleeved on the main shaft; the dismounting assembly comprises a cooling piece and a heating piece; the cooling piece is attached to the main shaft, the outer ring of the rear bearing and the outer ring of the front bearing; the heating piece is arranged on the bearing seat, the inner ring of the rear bearing and the inner ring of the front bearing; and gaps are formed between the inner ring of the rear bearing and the main shaft, between the outer ring of the rear bearing and the bearing seat, between the outer ring of the front bearing and the bearing seat and between the inner ring of the front bearing and the main shaft. And the equipment is prevented from being strained during dismounting.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind generating set technical field especially relates to a main shaft system bearing dismounting device. BACKGROUND

[0002] At present in prior art, for the large equipment of wind generating set, the main shaft system tapered roller bearing usually adopts mechanical method to forcibly dismount, which is easy to cause strain, and the oil pressure method cannot form oil film molecules to keep pressure on the bearing matching surface, so the scheme is not applicable. CONTENT OF UTILITY MODEL

[0003] The utility model discloses a main shaft system bearing dismounting device, which aims to solve the technical problems of single dismounting mode, poor dismounting effect and easy to cause strain of the equipment in the prior art.

[0004] To achieve the above-mentioned purpose, the utility model provides a main shaft system bearing dismounting device, which comprises:

[0005] A main shaft and a bearing seat, the main shaft is arranged in the bearing seat;

[0006] A rear bearing inner ring and a rear bearing outer ring, the rear bearing outer ring is sleeved on the rear bearing inner ring, the rear bearing outer ring is arranged on the bearing seat, and the rear bearing inner ring is sleeved on the main shaft;

[0007] A front bearing outer ring and a front bearing inner ring, the front bearing outer ring is sleeved on the front bearing inner ring, the front bearing outer ring is arranged on the bearing seat, and the front bearing inner ring is sleeved on the main shaft;

[0008] A dismounting assembly, the dismounting assembly comprises a cooling piece and a heating piece, the cooling piece is attached to the main shaft, the rear bearing outer ring and the front bearing outer ring; the heating piece is arranged on the bearing seat, the rear bearing inner ring and the front bearing inner ring; for forming gaps between the rear bearing inner ring and the main shaft, between the rear bearing outer ring and the bearing seat, between the front bearing outer ring and the bearing seat, and between the front bearing inner ring and the main shaft.

[0009] In an embodiment, the dismounting assembly further comprises:

[0010] A fixing tool, the fixing tool is used for fixing on the bearing seat;

[0011] A first ejector, one end of the first ejector is used for abutting against the fixing tool, and the other end is used for abutting against the main shaft;

[0012] When the cooling member is attached to the main shaft to shrink the main shaft and the heating member is arranged in the rear bearing inner ring to expand the rear bearing inner ring, the first ejector is ejected to eject the main shaft and the rear bearing inner ring together from the bearing seat.

[0013] In an embodiment, the end of the main shaft corresponding to the rear bearing inner ring has a plurality of mounting holes, and the cooling member is arranged in the mounting holes.

[0014] In an embodiment, the rear bearing outer ring has a first accommodating groove, and a pull ring is arranged on the first accommodating groove, and the pull ring is connected with an external hoist through a connecting member.

[0015] When the cooling member is attached to the rear bearing outer ring and the heating member is arranged at a position of the outer wall of the bearing seat corresponding to the rear bearing outer ring, the hoist pulls the rear bearing outer ring and the first accommodating groove out of the bearing seat.

[0016] In an embodiment, the rear bearing outer ring has a first accommodating groove, and the opening of the first accommodating groove is directed to a side away from the bearing seat, and the first accommodating groove is used to arrange the cooling member.

[0017] In an embodiment, the inner wall of the bearing seat has a flange extending to the inside, the front bearing outer ring is arranged on the flange, the flange is provided with an ejection hole, and the ejection hole is provided with an ejection screw.

[0018] When the cooling member is attached to the front bearing outer ring and the heating member is arranged at a position of the outer wall of the bearing seat corresponding to the front bearing outer ring, the ejection screw is screwed to eject the front bearing outer ring out of the bearing seat.

[0019] In an embodiment, the front bearing outer ring has a second accommodating groove, and the opening of the second accommodating groove is directed to a side away from the bearing seat, and the second accommodating groove is used to arrange the cooling member.

[0020] In an embodiment, the dismounting assembly further comprises:

[0021] A support tool is arranged on the outer wall of the main shaft and is arranged opposite to the front bearing inner ring.

[0022] A second ejector is arranged at one end of the support tool and is in abutment with the front bearing inner ring at the other end.

[0023] When the heating member is arranged on the front bearing inner ring and the cooling member is attached to the inner wall of the main shaft at a position corresponding to the front bearing inner ring, the second ejector is ejected to eject the front bearing inner ring out of the main shaft.

[0024] In an embodiment, the dismounting assembly further comprises an adjusting tool arranged on the inner wall of the main shaft;

[0025] The adjusting tool is used to adjust the position of the cooling member to correspond to the position of the inner ring of the front bearing.

[0026] In an embodiment, the heating member is arranged on the bearing seat, the inner ring of the rear bearing and the inner ring of the front bearing after the cooling member cools the main shaft, the outer ring of the rear bearing and the outer ring of the front bearing for a preset time length.

[0027] The technical scheme of the utility model sets up cooling members for cooling treatment on one side of the main shaft, the outer ring of the rear bearing and the outer ring of the front bearing, and sets up heating members for heating treatment on one side of the bearing seat, the inner ring of the rear bearing and the inner ring of the front bearing, thereby forming gaps between the inner ring of the rear bearing and the main shaft, between the outer ring of the rear bearing and the bearing seat, between the outer ring of the front bearing and the bearing seat and between the inner ring of the front bearing and the main shaft, which is beneficial to the disengagement between them and avoids the pulling injury to the equipment, and improves the reliability in the dismounting process of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0029] Figure 1 It is a structural schematic view of the main shaft system bearing dismounting device of the utility model;

[0030] Figure 2 It is a structural schematic view of the first embodiment of the main shaft system bearing dismounting device of the utility model;

[0031] Figure 3 It is a structural schematic view of the inner ring of the rear bearing in the main shaft system bearing dismounting device of the utility model;

[0032] Figure 4 It is a structural schematic view of the second embodiment of the main shaft system bearing dismounting device of the utility model;

[0033] Figure 5 It is a structural schematic view of the outer ring of the rear bearing in the main shaft system bearing dismounting device of the utility model;

[0034] Figure 6The utility model discloses a structure schematic drawing of the third embodiment of main shaft system bearing dismounting device.

[0035] Figure 7 The utility model discloses a structure schematic drawing of the front bearing inner ring in main shaft system bearing dismounting device.

[0036] Figure 8 The utility model discloses a structure schematic drawing of the fourth embodiment of main shaft system bearing dismounting device.

[0037] Figure 9 The utility model discloses a structure schematic drawing of the front bearing inner ring in main shaft system bearing dismounting device.

[0038] Explanation of the attached drawings:

[0039] 10, main shaft;11, mounting hole;20, bearing seat;21, flanging;31, cooling piece;32, heating piece;33, fixed tool;34, first ejection piece;35, ejection screw rod;36, support tool;37, second ejection piece;38, adjusting tool;40, rear bearing inner ring;50, rear bearing outer ring;51, pull ring;52, connecting piece;53, first containing groove;60, front bearing outer ring;61, second containing groove;70, front bearing inner ring.

[0040] The utility model discloses the realization, functional characteristics and advantages will be further explained with reference to the attached drawings. Specific implementation

[0041] The technical scheme in the utility model embodiment will be clearly and completely described below with reference to the attached drawings in the utility model embodiment, and obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor belong to the range of the utility model protection.

[0042] It needs to be explained that if the embodiment of the utility model has involved the directionality indication (such as upper, lower, left, right, front, back……), then the directionality indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture, if the specific posture changes, then the directionality indication also changes accordingly.

[0043] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the same or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes include "A and / or B", including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0044] The utility model provides a main shaft system bearing dismounting device.

[0045] In an embodiment of the utility model, the main shaft system bearing dismounting device is mainly composed of main shaft 10 and bearing seat 20, please refer to Figure 1 , the main shaft 10 and bearing seat 20 are placed vertically, and the bearing seat 20 is sleeved on the outside of the main shaft 10. Among them, the top of the main shaft 10 is provided with a rear bearing, and the bottom of the main shaft 10 is provided with a front bearing.

[0046] Among them, the rear bearing includes a rear bearing inner ring 40 and a rear bearing outer ring 50, and the rear bearing outer ring 50 is sleeved on the rear bearing inner ring 40. The inner wall of the rear bearing inner ring 40 abuts against the outer wall of the main shaft 10, and the outer wall of the rear bearing outer ring 50 abuts against the inner wall of the bearing seat 20. Similarly, the front bearing also includes a front bearing inner ring 70 and a front bearing outer ring 60, and the front bearing outer ring 60 is sleeved on the front bearing inner ring 70. The inner wall of the front bearing inner ring 70 abuts against the outer wall of the main shaft 10, and the outer wall of the front bearing outer ring 60 abuts against the inner wall of the bearing seat 20.

[0047] And in the embodiment, the rear bearing inner ring 40 and the main shaft 10, the front bearing inner ring 70 and the main shaft 10, the rear bearing outer ring 50 and the bearing seat 20, and the front bearing outer ring 60 and the bearing seat 20 are connected by interference fit.

[0048] In the embodiment, the main shaft 10 and the bearing seat 20 are used for wind turbine generators, which are large in size and heavy in weight. When the front bearing and the rear bearing need to be removed, the dismounting assembly can be used to assist in the removal.

[0049] The dismounting assembly specifically includes a cooling member 31 and a heating member 32. The cooling member 31 can be made of, for example, dry ice, liquid nitrogen, solid hydrogen, etc. The heating member 32 can be made of, for example, a medium-high frequency induction heater, a silica gel heating sheet, a heating resistor, etc., and is connected to an external power supply through a flexible coil.

[0050] In order to improve the efficiency of disassembly, the rear bearing inner ring 40, the rear bearing outer ring 50, the front bearing outer ring 60 and the front bearing inner ring 70 are sequentially disassembled according to the preset order in the embodiment.

[0051] Specifically, when disassembling the rear bearing inner ring 40, please refer to Figure 2 and Figure 3 A fixing tool 33 is arranged on the top of the bearing seat 20, the fixing tool 33 is a metal steel frame, the size of which is matched with the bearing seat 20, and the edge of the fixing tool 33 is connected and fixed with the edge of the bearing seat 20 through screws or bolts. A first ejector 34 is arranged between the fixing tool 33 and the main shaft 10. The first ejector 34 can be, for example, a jack.

[0052] Then, the cooling tool 31 is arranged on the main shaft 10, and the heating tool 32 is arranged on the outer wall of the bearing seat 20, so that the main shaft 10 is cooled, and the main shaft 10 shrinks inward after being cooled, while the bearing seat 20 expands outward after being heated, thereby forming a gap between the main shaft 10 and the rear bearing inner ring 40.

[0053] After the main shaft 10 is cooled and the rear bearing inner ring 40 is heated respectively, the first ejector 34 is extended, thereby ejecting the rear bearing inner ring 40 from the main shaft 10. When the rear bearing inner ring 40 is taken out of the main shaft 10, the main shaft 10 is separated from the bearing seat 20, and the rear bearing outer ring 50 and the front bearing outer ring 60 remain on the bearing seat 20, while the front bearing inner ring 70 remains on the main shaft 10.

[0054] The preset time length can be set to 30 minutes or more to ensure that the main shaft 10 is completely cooled. The preset temperature can be set to between 90°C and 100°C.

[0055] It should be noted that while the rear bearing inner ring 40 is heated by the heating tool 32, the cooling tool 31 continues to cool the main shaft 10, so as to ensure that a stable gap is formed between the main shaft 10 and the rear bearing inner ring 40.

[0056] Further, please refer to Figure 3 The end of the main shaft 10 corresponding to the rear bearing inner ring 40 is a top end, and a plurality of mounting holes 11 are arranged on the top end of the main shaft 10. The mounting holes 11 can be pin holes and / or threaded holes. When disassembling, the cooling tool 31 can be inserted into the mounting holes 11.

[0057] Continuing to refer to Figure 4 After the main shaft 10 is ejected from the bearing seat 20, the rear bearing outer ring 50 is still connected to the bearing seat 20 by interference fit. Therefore, the cooling tool 31 continues to cool the rear bearing outer ring 50, and the heating tool 32 continues to heat the outer wall of the bearing seat 20.

[0058] It should be noted that, whether it is to remove the rear bearing outer ring 50, the rear bearing inner ring 40, the front bearing outer ring 60, the front bearing inner ring 70, it is necessary to cool the preset duration through the cooling member 31, and then heat it with the heating member 32 at a preset temperature.

[0059] In this embodiment, please refer to Figure 5 The cooling member 31 is placed on the side of the rear bearing outer ring 50 close to its inner wall. The heating member 32 is arranged on the outer wall of the bearing seat 20, and the position of the heating member 32 corresponds to the mounting position of the rear bearing outer ring 50.

[0060] When the rear bearing outer ring 50 is cooled by the cooling member 31 and the outer wall of the bearing seat 20 is heated by the heating member 32, a gap is formed between them to facilitate the removal of the rear bearing outer ring 50 from the bearing seat 20.

[0061] Specifically, the first accommodating groove 53 is formed on the rear bearing outer ring 50, and the pull ring 51 is arranged on the first accommodating groove 53. One end of the connecting member 52 is connected with the pull ring 51, and the other end is used to connect with an external hoist. The connecting member 52 can be a metal chain, for example, to improve its load capacity. The first accommodating groove 53 is pulled up from the bearing seat 20 by the external hoist, and the rear bearing outer ring 50 is taken out from the bearing seat 20 at the same time.

[0062] To ensure that the cooling member 31 can fully contact the rear bearing outer ring 50, the first accommodating groove 53 is formed on the rear bearing outer ring 50, so that dry ice can be filled into the first accommodating groove 53. The slot of the first accommodating groove 53 is arranged upward to prevent the dry ice from falling out of the first accommodating groove 53.

[0063] The depth of the first accommodating groove 53 is matched with the thickness of the rear bearing outer ring 50 to ensure that the cooling member 31 can fully contact the rear bearing outer ring 50 to cool it down.

[0064] After the rear bearing inner ring 40 is removed from the bearing seat 20, the front bearing outer ring 60 is continued to be removed from the bearing seat 20. Please refer to Figure 6 The bottom of the bearing seat 20 has a flange 21, and the top of the front bearing outer ring 60 abuts against the flange 21 to limit it.

[0065] The flange 21 is arranged in a ring shape along the edge of the bearing seat 20, and a plurality of ejection holes are arranged on the flange 21, and an ejection screw 35 is arranged in the ejection hole.

[0066] When the front bearing outer ring 60 needs to be removed from the bearing seat 20, please refer to Figure 7 The cooling member 31 is placed in the front bearing outer ring 60, and the heating member 32 is arranged on the outer wall of the bearing seat 20. The position of the heating member 32 corresponds to the mounting position of the front bearing outer ring 60.

[0067] When the front bearing outer ring 60 is cooled by the cooling member 31 and the outer wall of the bearing seat 20 is heated by the heating member 32, a gap is formed between them to facilitate the removal of the front bearing outer ring 60 from the bearing seat 20.

[0068] Specifically, the ejection screw 35 at each position is alternately twisted to eject the front bearing outer ring 60 from the bearing seat 20.

[0069] To ensure that the cooling member 31 can fully contact the front bearing outer ring 60, a second accommodating groove 61 is formed on the front bearing outer ring 60 to facilitate the filling of dry ice into the second accommodating groove 61. The opening of the second accommodating groove 61 is upwardly arranged to prevent the dry ice from falling out of the second accommodating groove 61.

[0070] The depth of the second accommodating groove 61 is matched with the thickness of the front bearing outer ring 60 to ensure that the cooling member 31 can fully contact the front bearing outer ring 60 to cool it down.

[0071] Further, after the front bearing inner ring 70 is removed from the bearing seat 20, the front bearing inner ring 70 is continuously removed from the main shaft 10. Please refer to Figure 8 , the front bearing inner ring 70 is sleeved on the outer wall of the main shaft 10. To smoothly remove the front bearing inner ring 70 from the main shaft 10, the disassembly assembly further includes a support tool 36 and a second ejector 37.

[0072] The second ejector 37 can also be a jack, please refer to Figure 8 , the bottom of the main shaft 10 is wider in size and can be used to place the support tool 36. After the support tool 36 is fixed, the top surface thereof is arranged opposite to the bottom surface of the front bearing inner ring 70. The bottom of the second ejector 37 is clamped on the top surface of the support tool 36, and the top of the second ejector 37 is clamped on the bottom surface of the front bearing inner ring 70.

[0073] The inner wall of the main shaft 10 is cooled by the cooling member 31, and the front bearing inner ring 70 is heated by the heating member 32, so as to form a gap between the front bearing inner ring 70 and the main shaft 10.

[0074] After the gap is formed between the front bearing inner ring 70 and the main shaft 10, the second ejector 37 is controlled to extend, so as to eject the front bearing inner ring 70 from the main shaft 10.

[0075] To ensure that the inner wall of the main shaft 10 can fully contact the cooling member 31, the disassembly assembly further includes an adjusting tool 38. The adjusting tool 38 can adopt a similar structure to the fixing tool 33. The height of the adjusting tool 38 is adjusted to make the position of the adjusting tool 38 correspond to the position of the front bearing inner ring 70.

[0076] The third accommodating groove is arranged at the edge of the adjusting tool 38, dry ice is filled in the third accommodating groove, so that the dry ice can be in full contact with the inner wall of the main shaft 10 and can be cooled.

[0077] Further, in order to ensure that the gaps formed between the rear bearing inner ring 40 and the main shaft 10, the front bearing inner ring 70 and the main shaft 10, the rear bearing outer ring 50 and the bearing seat 20, and the front bearing outer ring 60 and the bearing seat 20 meet the disassembly requirements.

[0078] Specifically, in order to ensure stable disassembly, the gap should be greater than or equal to a preset size, and the size of the gap can be measured by a plug gauge.

[0079] The preset size can be 0.02 mm. That is, when the gaps formed between the rear bearing inner ring 40 and the main shaft 10, the front bearing inner ring 70 and the main shaft 10, the rear bearing outer ring 50 and the bearing seat 20, and the front bearing outer ring 60 and the bearing seat 20 are greater than or equal to 0.02 mm, the rear bearing inner ring 40, the rear bearing outer ring 50, the front bearing outer ring 60, and the front bearing inner ring 70 can be disassembled.

[0080] The above is only an exemplary embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields within the technical concept of the present application is included in the patent protection scope of the present application.

Claims

1. A spindle system bearing disassembly and assembly device, characterized in that, The spindle system bearing disassembly and assembly device includes: A main shaft (10) and a bearing housing (20), wherein the main shaft (10) is disposed within the bearing housing (20); The rear bearing inner ring (40) and the rear bearing outer ring (50) are provided. The rear bearing outer ring (50) is sleeved on the rear bearing inner ring (40). The rear bearing outer ring (50) is provided on the bearing seat (20). The rear bearing inner ring (40) is sleeved on the main shaft (10). The front bearing outer ring (60) and the front bearing inner ring (70) are provided. The front bearing outer ring (60) is sleeved on the front bearing inner ring (70). The front bearing outer ring (60) is disposed on the bearing housing (20). The front bearing inner ring (70) is sleeved on the main shaft (10). The dismantling assembly includes a cooling element (31) and a heating element (32). The cooling element (31) is attached to the spindle (10), the rear bearing outer ring (50), and the front bearing outer ring (60). The heating element (32) is disposed on the bearing housing (20), the rear bearing inner ring (40), and the front bearing inner ring (70). It is used to create gaps between the rear bearing inner ring (40) and the spindle (10), between the rear bearing outer ring (50) and the bearing housing (20), between the front bearing outer ring (60) and the bearing housing (20), and between the front bearing inner ring (70) and the spindle (10).

2. The spindle system bearing disassembly and assembly device as described in claim 1, characterized in that, The dismantling assembly also includes: Fixture (33) is used to fix the bearing housing (20); The first ejector (34) has one end for abutting against the fixed fixture (33) and the other end for abutting against the spindle (10); When the cooling element (31) is attached to the spindle (10) to shrink the spindle (10) and the heating element (32) is disposed on the inner ring (40) of the rear bearing to expand the inner ring (40), the first ejector (34) ejects to eject the spindle (10) and the inner ring (40) of the rear bearing together from the bearing seat (20).

3. The spindle system bearing disassembly and assembly device as described in claim 2, characterized in that, The spindle (10) has a plurality of mounting holes (11) at one end corresponding to the inner ring (40) of the rear bearing, and the cooling element (31) is used to be placed in the mounting holes (11).

4. The spindle system bearing disassembly and assembly device as described in claim 1, characterized in that, The rear bearing outer ring (50) has a first receiving groove (53) for placing the cooling component (31).

5. The spindle system bearing disassembly and assembly device as described in claim 4, characterized in that, The first receiving groove (53) is provided with a pull ring (51), which is used to connect to an external lifting device through a connector (52); When the cooling component (31) is attached to the outer ring (50) of the rear bearing and the heating component (32) is positioned on the outer wall of the bearing housing (20) corresponding to the outer ring (50) of the rear bearing, the hoist pulls the outer ring (50) of the rear bearing and the first receiving groove (53) out of the bearing housing (20).

6. The spindle system bearing disassembly and assembly device as described in claim 1, characterized in that, The bearing housing (20) has an inwardly extending flange (21) on its inner wall. The outer ring (60) of the front bearing is disposed on the flange (21). The flange (21) is provided with an ejection hole, and an ejection screw (35) is provided in the ejection hole. When the cooling component (31) is attached to the outer ring (60) of the front bearing and the heating component (32) is located on the outer wall of the bearing seat (20) at a position corresponding to the outer ring (60) of the front bearing, the ejector screw (35) is turned to eject the outer ring (60) of the front bearing from the bearing seat (20).

7. The spindle system bearing disassembly and assembly device as described in claim 6, characterized in that, The outer ring (60) of the front bearing has a second receiving groove (61), the opening of the second receiving groove (61) facing away from the bearing seat (20), and the second receiving groove (61) is used to place the cooling component (31).

8. The spindle system bearing disassembly and assembly device as described in claim 1, characterized in that, The dismantling assembly also includes: A support fixture (36) is provided on the outer wall of the main shaft (10) and is disposed opposite to the inner ring (70) of the front bearing; The second ejector (37) has one end disposed on the support fixture (36) and the other end abutting against the inner ring (70) of the front bearing; When the heating element (32) is disposed on the inner ring (70) of the front bearing and the cooling element (31) is attached to the inner wall of the main shaft (10) at the position corresponding to the inner ring (70) of the front bearing, the second ejector (37) ejects to eject the inner ring (70) of the front bearing from the main shaft (10).

9. The spindle system bearing disassembly and assembly device as described in claim 8, characterized in that, The dismantling assembly also includes an adjustment fixture (38), which is disposed on the inner wall of the main shaft (10); The adjusting fixture (38) is used to adjust the position of the cooling component (31) so that it corresponds to the position of the inner ring (70) of the front bearing.

10. The spindle system bearing disassembly and assembly device as described in any one of claims 1 to 9, characterized in that, The heating element (32) is used to be placed on the bearing housing (20), the rear bearing inner ring (40), and the front bearing inner ring (70) after the cooling element (31) has cooled the spindle (10), the rear bearing outer ring (50), and the front bearing outer ring (60) for a preset time.

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