Gear ring disassembly system and method

Abstract

The present invention relates to the field of disassembly technology, and in particular, to a gear ring disassembly system and method. The gear ring disassembly system includes a shaft device and a disassembly device. The shaft device includes a shaft body and a gear ring; the gear ring includes a gear ring and a plurality of gear teeth; the inner circumferential wall of the gear ring is interference fit with the outer circumferential wall of the shaft body; the shaft body includes a disassembly side; the outer diameter of the disassembly side is less than or equal to the inner diameter of the gear ring; the plurality of gear teeth are fixedly connected to the outer circumferential wall of the gear ring; the plurality of gear teeth are arranged at intervals along the circumferential direction of the gear ring; the disassembly device includes a support assembly and a plurality of abutment assemblies; the abutment assembly includes an abutment unit and a plurality of first abutment teeth; the gear ring disassembly system includes a disassembly state; the disassembly state includes the abutment unit being evenly arranged along the circumferential direction of the gear ring; the first abutment tooth being arranged between two adjacent gear teeth; the first abutment tooth abutting against the gear tooth and / or the first abutment tooth abutting against the outer circumferential surface of the gear ring. In this way, the problem that the axial space at one end of the gear ring is too small and the gear ring cannot be disassembled is solved.

Description

Technical Field

[0001] The present invention relates to the field of disassembly technology, and in particular to a gear ring disassembly system and method. Background Art

[0002] At present, the gear ring on the outer ball cage of the drive shaft is usually combined with a sensor to measure the speed of the drive shaft. When the gear ring is damaged or needs to be repaired and removed, it is usually removed by a hydraulic puller or a mechanical puller. The hydraulic puller provides a strong and stable pulling force through hydraulic power. Its working principle is to use the extension and contraction of the hydraulic cylinder to drive the claw to pull the gear ring out of the installation position. The mechanical puller uses a mechanical structure such as a screw to transmit the pulling force. Its working principle is to rotate the screw to make the claw extend and contract to drive the claw, thereby removing the gear ring.

[0003] However, the device for disassembling the gear ring usually abuts against one end face of the gear ring along the axial direction, and this end face needs to have sufficient operating space during disassembly. When the operating space at one end of the gear ring is small, it is difficult to implement disassembly with a conventional disassembly device. Summary of the invention

[0004] In order to solve the problem that the space at one axial end of the gear ring is too small and the gear ring cannot be disassembled, the present invention provides a gear ring disassembly system and method.

[0005] In a first aspect, the present invention provides a gear ring disassembly system, comprising:

[0006] A shaft device, the shaft device comprises a shaft body and a gear ring; the gear ring comprises a gear ring and a plurality of gear teeth; the inner peripheral wall of the gear ring is interference fit with the outer peripheral wall of the shaft body; the shaft body comprises a disassembly side; the outer diameter of the disassembly side is less than or equal to the inner diameter of the gear ring; the plurality of gear teeth are fixedly connected to the outer peripheral wall of the gear ring; the plurality of gear teeth are arranged at intervals along the circumferential direction of the gear ring;

[0007] A disassembly device, the disassembly device comprises a support assembly and a plurality of abutment assemblies; the abutment assembly comprises an abutment unit and a plurality of first abutment teeth; the abutment unit is detachably connected to the support assembly; the plurality of abutment units are arranged at intervals; the first abutment teeth are fixedly connected to the abutment unit; the abutment unit is arranged in a long strip shape; the plurality of first abutment teeth are arranged at intervals along the length direction of the abutment unit;

[0008] The gear ring disassembly system includes a disassembly state; the disassembly state includes the abutment units being evenly arranged along the circumferential direction of the gear ring; the first abutment teeth being arranged between two adjacent gear teeth; the first abutment teeth abutting against the gear teeth and / or the first abutment teeth abutting against the outer circumferential surface of the gear ring; the abutment assembly drives the gear ring and the shaft body to move relative to each other, and the gear ring moves toward the disassembly side.

[0009] In some embodiments, the tooth thickness of the first abutment tooth gradually decreases along the height direction of the abutment unit; the tooth thickness of the first abutment tooth at one end along the height direction of the abutment unit is greater than the tooth pitch of two adjacent gear teeth;

[0010] The disassembly state also includes the abutment assembly driving the gear ring to move relative to the shaft body along a direction in which the tooth thickness of the first abutment tooth gradually decreases, and the gear ring moves toward the disassembly side.

[0011] In some embodiments, the first abutting tooth includes a first tooth portion and a second tooth portion; the first tooth portion and the second tooth portion are fixedly connected along the height direction of the abutting unit; the first tooth portion and the second tooth portion are fixedly connected to the abutting unit respectively; the tooth thickness of the first tooth portion is adapted to the tooth pitch of two adjacent gear teeth; the tooth thickness of the second tooth portion gradually decreases from the second tooth portion to the first tooth portion; the tooth thickness of at least part of the second tooth portion is greater than the tooth pitch of two adjacent gear teeth;

[0012] The disassembly state also includes the abutment assembly driving the gear ring to move relative to the shaft body along a direction from the second tooth portion to the first tooth portion, and the gear ring moves toward the disassembly side.

[0013] In some embodiments, the abutment unit includes two first abutment portions and a second abutment portion; one of the first abutment portion and the second abutment portion is fixedly connected at one end along the length direction of the first abutment portion, and the other of the first abutment portion and the second abutment portion is fixedly connected at the other end along the length direction of the first abutment portion; the first abutment tooth is fixedly connected to the first abutment portion; the second abutment portion is detachably connected to the support assembly;

[0014] The abutment assembly further includes a second abutment tooth; the second abutment tooth is fixedly connected to the second abutment portion;

[0015] The disassembled state further includes the second abutment tooth abutting against the gear tooth and / or the second abutment tooth abutting against the outer peripheral surface of the gear ring.

[0016] In some embodiments, the support assembly includes a support portion, a driving portion, and a plurality of connecting portions; the driving portion is movably connected to the support portion; one end of the connecting portion is detachably connected to the support portion, and the other end extends away from the support portion; one end of the connecting portion away from the support portion is detachably connected to the second abutting portion; the connecting portion is adapted to fit the second abutting portion;

[0017] The disassembly state also includes an end of the driving portion away from the supporting portion abutting against an end of the shaft body along the axis close to the disassembly side.

[0018] In some embodiments, the second abutting tooth includes a third tooth portion and a fourth tooth portion; the third tooth portion and the fourth tooth portion are fixedly connected along the height direction of the second abutting portion; the third tooth portion and the fourth tooth portion are fixedly connected to the second abutting portion respectively; the tooth thickness of the third tooth portion is adapted to the tooth pitch of two adjacent gear teeth; the tooth thickness of the fourth tooth portion gradually decreases along the direction from the fourth tooth portion to the third tooth portion; the tooth thickness of at least part of the fourth tooth portion is greater than the tooth pitch of two adjacent gear teeth;

[0019] The disassembly state also includes the abutment assembly driving the gear ring to move relative to the shaft body along the direction from the fourth tooth portion to the third tooth portion, and the gear ring moves toward the disassembly side.

[0020] In some embodiments, a diameter of an inscribed circle of an end of the connecting portion close to the supporting portion is smaller than a diameter of an inscribed circle of an end of the connecting portion far from the supporting portion.

[0021] In some embodiments, a tooth thickness of the fourth tooth portion is smaller than a tooth thickness of the second tooth portion.

[0022] In some embodiments, R1=R0; R0>R2≥0.95*R0; wherein R1 is the radius of the tooth top circle of the second abutting tooth, R0 is the radius of the tooth root circle of the gear tooth; and R2 is the radius of the first abutting tooth.

[0023] In a second aspect, the present invention provides a gear ring disassembly method, the gear ring disassembly method is applied to any of the gear ring disassembly systems in the first aspect, the gear ring disassembly method comprising:

[0024] Step S10, based on the disassembly instruction trigger, driving the abutment assembly to move toward the gear ring;

[0025] Step S20, based on the first abutment tooth of the abutment assembly being disposed between two adjacent gear teeth and the first abutment tooth abutting against the gear teeth and / or the first abutment tooth abutting against the outer peripheral surface of the gear ring, the abutment assembly drives the gear ring and the shaft body to move relative to each other;

[0026] Step S30, based on the spacing between at least a portion of the inner circumference of the gear ring and the outer circumference of the shaft body, the disassembly is completed.

[0027] In order to solve the problem that the space at one axial end of the gear ring is too small and the gear ring cannot be disassembled, the present invention has the following advantages:

[0028] When disassembling the gear ring, there is no need to consider the size of the operating space of the gear ring along the axial direction of the shaft body. It is only necessary to abut the first abutment tooth against the wheel tooth and / or the first abutment tooth against the outer peripheral surface of the gear ring, so that the multiple first abutment teeth and the gear ring are in full contact, and then the friction force between the multiple first abutment teeth and the gear ring can be used to firmly grasp the gear ring, and then the abutment assembly drives the gear ring and the shaft body to move relative to each other, and finally complete the removal of the gear ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram showing a gear ring disassembly system according to an embodiment;

[0030] Figure 2 A schematic diagram of a shaft device according to an embodiment is shown;

[0031] Figure 3 A schematic diagram showing a disassembly device according to an embodiment;

[0032] Figure 4 A schematic diagram of an abutment assembly according to an embodiment is shown;

[0033] Figure 5 A flow chart of a method for disassembling a ring gear according to an embodiment is shown.

[0034] Figure markings: disassembly device 01; support assembly 11; support part 111; drive part 112; connecting part 113; abutment assembly 12; abutment unit 121; first abutment part 1211; second abutment part 1212; first abutment tooth 122; first tooth part 1221; second tooth part 1222; second abutment tooth 123; third tooth part 1231; fourth tooth part 1232; shaft device 02; shaft body 21; gear ring 22; gear ring 221; gear teeth 222. DETAILED DESCRIPTION

[0035] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.

[0036] As used herein, the term "including" and its variants are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "based at least in part on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like is based on the orientation or position relationship shown in the accompanying drawings. These terms are mainly for better describing the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate an orientation or position relationship, some of the above terms may also be used to indicate other meanings, such as the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances. In addition, the terms "install", "set", "provided with", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0037] In this embodiment, when the gear ring is damaged or needs to be repaired and removed, a hydraulic puller or a mechanical puller is usually used to remove the gear ring. However, the pull claws for removing the gear ring need to abut against one end face of the gear ring along the axial direction, and this end face needs to have enough operating space during removal. Otherwise, it is difficult for conventional removal devices to remove the gear ring. Therefore, in order to solve the above problems, the present invention provides a gear ring removal system, such as Figure 1 As shown, a gear ring disassembly system may include a shaft device and a disassembly device.

[0038] like Figure 2As shown, the shaft device 02 may include a shaft body 21 and a gear ring 22. The gear ring 22 may include a gear ring 221 and a plurality of gear teeth 222. The inner circumferential wall of the gear ring 221 may be interference fit with the outer circumferential wall of the shaft body 21, so that when the shaft body 21 rotates, the gear ring 22 will rotate with the shaft body 21 due to the friction force generated by the interference fit. The shaft body 21 may include a disassembly side, and the outer diameter of the disassembly side may be less than or equal to the inner diameter of the gear ring 221, so that when the gear ring 221 is disassembled or installed, the gear ring 221 can be installed or disassembled with the shaft body 21 through the disassembly side. The plurality of gear teeth 222 may be fixedly connected to the outer circumferential wall of the gear ring 221, and the plurality of gear teeth 222 may be arranged at intervals along the circumferential direction of the gear ring 221. When the drive shaft body 21 rotates, the gear ring 22 rotates accordingly, and then the sensor can detect the rotation speed of the plurality of gear teeth 222, thereby obtaining the test result.

[0039] like Figure 3 As shown, the disassembly device 01 may include a support assembly 11 and a plurality of abutment assemblies 12. The abutment assembly 12 may include an abutment unit 121 and a plurality of first abutment teeth 122. The abutment unit 121 may be detachably connected to the support assembly 11. The plurality of abutment units 121 may be arranged at intervals, so that the contact area with the gear ring 22 may be increased by the plurality of abutment units 121, thereby increasing the friction force. The first abutment tooth 122 may be fixedly connected to the abutment unit 121, the abutment unit 121 may be arranged in a long strip shape, and the plurality of first abutment teeth 122 may be arranged at intervals along the length direction of the abutment unit 121.

[0040] like Figure 1 As shown, the disassembly system of the gear ring 22 may include a disassembly state. The disassembly state may include that the abutment units 121 are evenly arranged along the circumferential direction of the gear ring 221, and the first abutment teeth 122 are arranged between two adjacent gear teeth 222. The first abutment teeth 122 may abut against the gear teeth 222 and / or the first abutment teeth 122 may abut against the outer circumferential surface of the gear ring 221. The abutment assembly 12 drives the gear ring 22 to move relative to the shaft body 21, and the gear ring 22 may move toward the disassembly side. In this way, there is no need to consider the size of the operating space of the gear ring 22 along the axial direction of the shaft body 21. It is only necessary to abut the first abutting teeth 122 against the gear teeth 222 and / or the first abutting teeth 122 against the outer peripheral surface of the gear ring 221, so that the multiple first abutting teeth 122 and the gear ring 22 can be fully contacted, so as to utilize the friction force between the multiple first abutting teeth 122 and the gear ring 22 to firmly grasp the gear ring 22, and then the abutment assembly 12 drives the gear ring 22 and the shaft body 21 to move relative to each other, and finally complete the removal of the gear ring 22.

[0041] In this embodiment, if Figure 4As shown, the tooth thickness of the first abutting tooth 122 can be gradually reduced along the height direction of the abutting unit 121. The tooth thickness of the first abutting tooth 122 at one end along the height direction of the abutting unit 121 can be greater than the tooth pitch of two adjacent gear teeth 222, wherein the first abutting tooth 122 can be made of a flexible material. When there is a substance that affects the friction force (such as lubricating oil, etc.) on the surface of the gear ring 22, the first abutting tooth 122 can be engaged with the two adjacent gear teeth 222, and the engaging force is more reliable than the friction force. In this way, through the combination of friction force and engaging force, the first abutting tooth 122 can be used to firmly grasp the gear ring 22, thereby effectively improving the disassembly efficiency.

[0042] The disassembly state can also include the abutment component 12 driving the gear ring 22 to move relative to the shaft body 21 in the direction in which the tooth thickness of the first abutment tooth 122 gradually decreases, and the gear ring 22 moves toward the disassembly side. In this way, since the abutment component 12 drives the first abutment tooth 122 to move relative to the gear ring 22, the end of the first abutment tooth 122 with a thicker tooth thickness will be more and more tightly engaged with the abutment component 12 as the gear ring 22 moves relative to each other. Since the first abutment tooth 122 is made of flexible material, the first abutment tooth 122 will undergo a certain deformation and be squeezed toward the tooth surface of the gear tooth 222, so that the first abutment tooth 122 can grasp the gear ring 22 more firmly.

[0043] In this embodiment, if Figure 1 , Figure 4 As shown, the first abutting tooth 122 may include a first tooth portion 1221 and a second tooth portion 1222. The first tooth portion 1221 and the second tooth portion 1222 may be fixedly connected along the height direction of the abutting unit 121. The first tooth portion 1221 and the second tooth portion 1222 may be fixedly connected to the abutting unit 121, respectively. The tooth thickness of the first tooth portion 1221 may be adapted to the pitch of two adjacent gear teeth 222. Since the first abutting tooth 122 is a flexible material, the first abutting tooth 122 is pressed toward the outer peripheral surface of the part of the gear ring 221 between the two adjacent gear teeth 222 and the tooth surface of the two adjacent gear teeth 222 during disassembly, causing the first abutting tooth 122 to deform, but the deformation will make the first abutting tooth 122 fit more closely to the gear ring 22. Therefore, when the gear ring 22 is disassembled, the friction between the first abutting tooth 122 and the gear ring 22 can be further increased. The tooth thickness of the second tooth portion 1222 can gradually decrease along the direction from the second tooth portion 1222 to the first tooth portion 1221, and the tooth thickness of at least part of the second tooth portion 1222 can be greater than the tooth pitch of two adjacent gear teeth 222, so that at least part of the second tooth portion 1222 can be at least partially engaged with the two adjacent gear teeth 222, and the first tooth portion 1221 is tightly fitted with the two adjacent gear teeth 222, so that the gear ring 22 can be grasped more firmly through friction and engagement force.

[0044] The disassembly state may also include the abutment assembly 12 driving the gear ring 22 to move relative to the shaft body 21 along the direction from the second tooth portion 1222 to the first tooth portion 1221, and the gear ring 22 moves toward the disassembly side. Since the tooth thickness of at least part of the second tooth portion 1222 is greater than the pitch of two adjacent gear teeth 222, when the gear ring 22 moves relative to the shaft body 21 along the direction from the second tooth portion 1222 to the first tooth portion 1221, at least part of the second tooth portion 1222 and the adjacent gear teeth 222 will be more and more tightly engaged, thereby improving the disassembly efficiency of the gear ring 22 by the first abutment tooth 122.

[0045] In this embodiment, if Figure 1 As shown, the abutment unit 121 may include two first abutment portions 1211 and a second abutment portion 1212. One first abutment portion 1211 may be fixedly connected to one end of the second abutment portion 1212 along the length direction of the first abutment portion 1211, and the other first abutment portion 1211 may be fixedly connected to the other end of the second abutment portion 1212 along the length direction of the first abutment portion 1211. The first abutment tooth 122 may be fixedly connected to the first abutment portion 1211. The second abutment portion 1212 may be detachably connected to the support assembly 11.

[0046] The abutting assembly 12 may further include a second abutting tooth 123. The second abutting tooth 123 may be fixedly connected to the second abutting portion 1212.

[0047] The disassembly state may also include the second abutting teeth 123 abutting against the gear teeth 222 and / or the second abutting teeth 123 abutting against the outer peripheral surface of the gear ring 221. When the gear ring 22 is disassembled, since the second abutting teeth 123 abut against the gear teeth 222 and / or the second abutting teeth 123 abut against the outer peripheral surface of the gear ring 221, the first abutting teeth 122 abut against the gear teeth 222 and / or the first abutting teeth 122 abut against the outer peripheral surface of the gear ring 221, the abutting area between the gear ring 22 and the abutting unit 121 is larger, and the friction force is also increased. Finally, the disassembly efficiency of the abutment assembly 12 on the gear ring 22 is improved.

[0048] In this embodiment, if Figure 1 , Figure 4 As shown, the support assembly 11 may include a support portion 111, a driving portion 112, and a plurality of connecting portions 113. The driving portion 112 may be movably connected to the support portion 111. One end of the connecting portion 113 may be detachably connected to the support portion 111, and the other end may extend in a direction away from the support portion 111. The connecting portion 113 may quickly change the gap between the plurality of connecting portions 113 according to the diameter of different gear rings 22, thereby being more convenient. One end of the connecting portion 113 away from the support portion 111 may be detachably connected to the second abutting portion 1212, and the connecting portion 113 may be adapted to the second abutting portion 1212.

[0049] The disassembly state may also include that one end of the driving part 112 away from the supporting part 111 abuts against one end of the shaft body 21 along the axis close to the disassembly side, and the driving part 112 drives the shaft body 21 along the axis of the shaft body 21 to move in a direction away from the supporting part 111, so that the gear ring 22 moves relative to the shaft body 21. In order to ensure that the gear ring 22 can be smoothly detached during the disassembly process, a support assembly 11 is required. The support assembly 11 can fix the components connected to the gear ring 221 to prevent them from being displaced or shaken during the pulling process, thereby ensuring the smooth progress of the disassembly work.

[0050] In this embodiment, if Figure 1 , Figure 4 As shown, the second abutting tooth 123 may include a third tooth portion 1231 and a fourth tooth portion 1232. The third tooth portion 1231 and the fourth tooth portion 1232 may be fixedly connected along the height direction of the second abutting portion 1212. The third tooth portion 1231 and the fourth tooth portion 1232 may be fixedly connected to the second abutting portion 1212, respectively. The tooth thickness of the third tooth portion 1231 may be adapted to the pitch of two adjacent gear teeth 222. Since the second abutting tooth 123 is a flexible material, the second abutting tooth 123 is pressed toward the outer peripheral surface of the part of the gear ring 221 between the two adjacent gear teeth 222 and the tooth surface of the two adjacent gear teeth 222 during disassembly, causing the second abutting tooth 123 to deform, but the deformation will make the second abutting tooth 123 fit the gear ring 22 more closely. Therefore, when the gear ring 22 is disassembled, the friction between the second abutting tooth 123 and the gear ring 22 can be further increased. The tooth thickness of the fourth tooth portion 1232 may gradually decrease in the direction from the fourth tooth portion 1232 to the third tooth portion 1231. The tooth thickness of at least part of the fourth tooth portion 1232 may be greater than the pitch of two adjacent gear teeth 222, so that at least part of the fourth tooth portion 1232 may at least partially engage with two adjacent gear teeth 222, and the third tooth portion 1231 is tightly fitted with two adjacent gear teeth 222, so that the gear ring 22 may be disassembled more stably through friction and engagement force.

[0051] The disassembly state may also include the abutment assembly 12 driving the gear ring 22 to move relative to the shaft body 21 along the direction from the fourth tooth portion 1232 to the third tooth portion 1231, and the gear ring 22 moves toward the disassembly side. Since the tooth thickness of at least part of the fourth tooth portion 1232 is greater than the pitch of two adjacent gear teeth 222, when the gear ring 22 moves relative to the shaft body 21 along the direction from the fourth tooth portion 1232 to the third tooth portion 1231, at least part of the fourth tooth portion 1232 and the adjacent gear teeth 222 will be more and more tightly engaged, so that the fourth tooth portion 1232 can be used to improve the disassembly efficiency of the gear ring 22.

[0052] In this embodiment, if Figure 1 , Figure 4As shown, the diameter of the inscribed circle of the end of the connecting portion 113 close to the supporting portion 111 can be smaller than the diameter of the inscribed circle of the end of the connecting portion 113 away from the supporting portion 111. In this way, during the disassembly process, the first abutting tooth 122 and the second abutting tooth 123 will move toward the direction close to the gear ring 221. Since the first abutting tooth 122 and the second abutting tooth 123 are both made of flexible materials, when moving in the opposite direction toward the gear ring 221, the first abutting tooth 122 and the second abutting tooth 123 squeeze the outer peripheral surface of the part of the gear ring 221 between two adjacent gear teeth 222 and the tooth surface of two adjacent gear teeth 222, causing the first abutting tooth 122 to deform, but the deformation will make the first abutting tooth 122 fit the gear ring 22 more closely. Thereby, the disassembly efficiency of the abutting assembly 12 to the gear ring 22 is improved.

[0053] In this embodiment, if Figure 1 , Figure 4 As shown, the tooth thickness of the fourth tooth portion 1232 may be smaller than the tooth thickness of the second tooth portion 1222. Because the second abutting tooth 123 is disposed on the second abutting portion 1212, and the second abutting portion 1212 is fixedly connected to the connecting portion 113, the fourth tooth portion 1232 of the second abutting tooth 123 is closer to the connecting portion 113 than the second tooth portion 1222. Therefore, when disassembling, the distance that the second abutting portion 1212 moves toward the gear ring 221 along the radial direction of the gear ring 221 is greater than the distance that the first abutting portion 1211 moves toward the gear ring 221 along the radial direction of the gear ring 221. Therefore, the area where the second abutting tooth 123 abuts against the gear ring 221 is larger than the area where the first abutting tooth 122 abuts against the gear ring 221. Meanwhile, the second abutting tooth 123 can be made of a flexible material. After the second abutting tooth 123 abuts against the gear ring 221, the second abutting tooth 123 is squeezed and moves toward the tooth surface of the gear tooth 222 adjacent to the second abutting tooth 123, thereby increasing the friction between the second abutting tooth 123 and the gear tooth 222, and between the second abutting tooth 123 and the gear ring 221. Due to the sufficient friction, the tooth thickness of the fourth tooth portion 1232 can be designed to be thinner than the tooth thickness of the second abutting tooth 123, thereby reducing the cost of the fourth tooth portion 1232.

[0054] In this embodiment, if Figure 1 , Figure 4As shown, R1=R0. R0>R2≥0.95*R0. Among them, R1 can be the radius of the tooth top circle of the second abutting tooth 123, R0 can be the radius of the tooth root circle radius of the gear tooth 222, and R2 can be the radius of the first abutting tooth 122. Since the abutting component 12 may have a certain processing error, if R1 is larger than R0, it will cause a part of the second abutting teeth 123 to always fail to abut against the gear ring 22 or the abutting area is small. Therefore, R0>R2≥0.95*R0, which will cause a certain gap between the second abutting portion 1212 and the gear ring 22. However, when the driving portion 112 drives the gear ring 22 and the shaft body 21 to move relative to each other, the diameter of the inscribed circle of the connecting portion 113 close to the support portion 111 is smaller than the diameter of the inscribed circle of the connecting portion 113 away from the support portion 111, so that the second abutting portion 1212 will gradually deform, allowing the teeth on the second abutting portion 1212 to move toward the gear ring 22 to abut, thereby satisfying the friction force required for disassembling the gear ring 22.

[0055] In this embodiment, if Figure 5 As shown, in step S10 , based on the triggering of the disassembly instruction, the abutment assembly 12 can be driven to approach the ring gear 221 to prepare for disassembling the ring gear 22 .

[0056] Step S20, based on the first abutment tooth 122 of the abutment component 12 being arranged between two adjacent gear teeth 222 and the first abutment tooth 122 abutting against the gear teeth 222 and / or the first abutment tooth 122 abutting against the outer peripheral surface of the gear ring 221, the abutment component 12 can drive the gear ring 22 and the shaft body 21 to move relative to each other by utilizing the abutment friction force or clamping force, and in the process of movement, the first abutment tooth 122 and the gear ring 221 can abut against each other more and more tightly, thereby ensuring that the abutment component 12 will not suddenly detach from the gear ring 22, thereby completing the disassembly.

[0057] Step S30, based on the spacing between the inner circumference of at least part of the gear ring 221 and the outer circumference of the shaft body 21, the first abutment tooth 122 of the abutment assembly 12 abuts against the gear teeth 222 and / or the first abutment tooth 122 abuts against the outer circumference of the gear ring 221, the first abutment tooth 122 fits tightly against the gear teeth 222, thereby completing the disassembly of the gear ring 22.

[0058] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A gear ring disassembly system, characterized in that: The gear ring disassembly system comprises: A shaft device, the shaft device comprises a shaft body and a gear ring; the gear ring comprises a gear ring and a plurality of gear teeth; the inner peripheral wall of the gear ring is interference fit with the outer peripheral wall of the shaft body; the shaft body comprises a disassembly side; the outer diameter of the disassembly side is less than or equal to the inner diameter of the gear ring; the plurality of gear teeth are fixedly connected to the outer peripheral wall of the gear ring; the plurality of gear teeth are arranged at intervals along the circumferential direction of the gear ring; A disassembly device, the disassembly device comprises a support component and a plurality of abutment components; the abutment component comprises an abutment unit and a plurality of first abutment teeth; the abutment unit is detachably connected to the support component; a plurality of abutment units are arranged at intervals; the first abutment tooth is fixedly connected to the abutment unit; the abutment unit is arranged in a strip shape; a plurality of first abutment teeth are arranged at intervals along the length direction of the abutment unit; the tooth thickness of the first abutment tooth gradually decreases along the height direction of the abutment unit; the tooth thickness of the first abutment tooth at one end along the height direction of the abutment unit is greater than the tooth pitch of two adjacent gear teeth; the first abutment tooth comprises a first tooth portion and a second tooth portion; the first tooth portion and the second tooth portion are fixedly connected along the height direction of the abutment unit; the first tooth portion and the second tooth portion are fixedly connected to the abutment unit respectively; the tooth thickness of the first tooth portion is adapted to the tooth pitch of two adjacent gear teeth; the tooth thickness of the second tooth portion gradually decreases along the direction from the second tooth portion to the first tooth portion; the tooth thickness of at least part of the second tooth portion is greater than the tooth pitch of two adjacent gear teeth; The gear ring disassembly system includes a disassembly state; the disassembly state includes the abutment units being evenly arranged along the circumferential direction of the gear ring; the first abutment teeth being arranged between two adjacent gear teeth; the first abutment teeth abutting against the gear teeth and / or the first abutment teeth abutting against the outer circumferential surface of the gear ring; the abutment assembly driving the gear ring and the shaft body to move relative to each other, and the gear ring moving toward the disassembly side; The disassembly state further includes the abutment assembly driving the gear ring to move relative to the shaft body in a direction in which the tooth thickness of the first abutment teeth gradually decreases, and the gear ring moves toward the disassembly side; The disassembly state also includes the abutment assembly driving the gear ring to move relative to the shaft body along a direction from the second tooth portion to the first tooth portion, and the gear ring moves toward the disassembly side.

2. A gear ring disassembly system according to claim 1, characterized in that: The abutment unit comprises two first abutment parts and a second abutment part; one of the first abutment part and the second abutment part is fixedly connected at one end along the length direction of the first abutment part, and the other of the first abutment part and the second abutment part is fixedly connected at the other end along the length direction of the first abutment part; the first abutment tooth is fixedly connected to the first abutment part; the second abutment part is detachably connected to the support assembly; The abutment assembly further includes a second abutment tooth; the second abutment tooth is fixedly connected to the second abutment portion; The disassembled state further includes the second abutment tooth abutting against the gear tooth and / or the second abutment tooth abutting against the outer peripheral surface of the gear ring.

3. A gear ring disassembly system according to claim 2, characterized in that: The support assembly comprises a support portion, a driving portion, and a plurality of connecting portions; the driving portion is movably connected to the support portion; one end of the connecting portion is detachably connected to the support portion, and the other end extends in a direction away from the support portion; one end of the connecting portion away from the support portion is detachably connected to the second abutting portion; the connecting portion is adapted to fit the second abutting portion; The disassembly state also includes an end of the driving portion away from the supporting portion abutting against an end of the shaft body along the axis close to the disassembly side.

4. A gear ring disassembly system according to claim 3, characterized in that: The second abutting tooth comprises a third tooth portion and a fourth tooth portion; the third tooth portion and the fourth tooth portion are fixedly connected along the height direction of the second abutting portion; the third tooth portion and the fourth tooth portion are respectively fixedly connected to the second abutting portion; the tooth thickness of the third tooth portion is adapted to the tooth pitch of two adjacent gear teeth; the tooth thickness of the fourth tooth portion gradually decreases along the direction from the fourth tooth portion to the third tooth portion; the tooth thickness of at least part of the fourth tooth portion is greater than the tooth pitch of two adjacent gear teeth; The disassembly state also includes the abutment assembly driving the gear ring to move relative to the shaft body along the direction from the fourth tooth portion to the third tooth portion, and the gear ring moves toward the disassembly side.

5. A gear ring disassembly system according to claim 4, characterized in that: The diameter of the inscribed circle of the connecting portion at one end close to the supporting portion is smaller than the diameter of the inscribed circle of the connecting portion at one end far from the supporting portion.

6. A gear ring disassembly system according to claim 5, characterized in that: The tooth thickness of the fourth tooth portion is smaller than the tooth thickness of the second tooth portion.

7. A gear ring disassembly system according to claim 5, characterized in that: R1=R0; R0>R2≥0.95*R0; wherein R1 is the radius of the tooth top circle of the second abutting tooth, R0 is the radius of the tooth root circle of the gear tooth; and R2 is the radius of the first abutting tooth.

8. A method for disassembling a gear ring, characterized in that: The gear ring disassembly method is applied to a gear ring disassembly system as described in any one of claims 1 to 6, and the gear ring disassembly method comprises: Step S10, based on the disassembly instruction trigger, driving the abutment assembly to move toward the gear ring; Step S20, based on the first abutment tooth of the abutment assembly being disposed between two adjacent gear teeth and the first abutment tooth abutting against the gear teeth and / or the first abutment tooth abutting against the outer peripheral surface of the gear ring, the abutment assembly drives the gear ring and the shaft body to move relative to each other; Step S30, based on the spacing between at least a portion of the inner circumference of the gear ring and the outer circumference of the shaft body, the disassembly is completed.

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