Rotating module and polishing device
By designing a rotating module including seals, shaft seals and elastic parts, the problem of polishing liquid leakage in the wet-polishing machine is solved, achieving more efficient rotation and longer service life.
Patent Information
- Application Number
- CN202421220372.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-30
AI Technical Summary
When using a wet-polishing machine to polish aluminum alloy workpieces with low hardness, the polishing liquid is prone to leak from the connection between the polishing liquid pipeline, rotary shaft, and spindle, causing corrosion of the seal ring, bearing and other components, which in turn causes the shaft bearing to be stuck. , spindle motor burns out and other problems.
A rotating module is designed, including a shaft seat, a rotating shaft, a seal, a shaft seal and an elastic member. By providing seals and through holes in the passage and using elastic members between the shaft seal and seal to compensate for wear, ensure that the seal remains in a resilient state at all times and avoiding leakage of polishing liquid.
It effectively avoids leakage of polishing liquid during rotation, improves the rotation efficiency of the rotating module, extends the service life of the seal and shaft seal, and reduces the maintenance frequency of the polishing device.
Smart Images
Figure CN222511692U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of polishing equipment, and in particular to a rotating module and a polishing device. Background Art
[0002] When polishing aluminum alloy workpieces with lower hardness, a wet polishing machine is generally used. The polishing liquid is directly transported to the polishing wheel through the polishing liquid pipeline to wet the polishing wheel and polish the workpiece. The polishing liquid in the wet polishing machine is usually transported from the polishing liquid pipe to the polishing wheel via the rotating shaft and the main shaft. However, when the polishing machine is working, the polishing wheel and the main shaft rotate at high speed together, which makes the connection between the polishing liquid pipeline, the rotating shaft, and the main shaft prone to wear and gaps after long-term work. The polishing liquid can easily leak from these gaps, and then corrode the sealing ring, bearings and other components, causing the gaps to become larger and larger. The polishing liquid will further overflow in large quantities, and even cause the rotating shaft bearings to get stuck, the spindle motor to burn out and other problems. Utility Model Content
[0003] In view of this, the embodiments of the present application provide a rotating module and a polishing device, which can prevent the polishing liquid from leaking during the rotation process to improve the rotation efficiency.
[0004] The present application provides a rotating module, including:
[0005] The shaft seat is provided with a passage, wherein the passage includes an inlet and an outlet which are connected;
[0006] A rotating shaft, rotatably connected to the shaft seat, one end of the rotating shaft is inserted into the channel, the other end of the rotating shaft protrudes from the outlet, and the rotating shaft is provided with a flow channel connected to the channel;
[0007] A sealing member is disposed in the channel and between the rotating shaft and the inlet, wherein the sealing member is provided with a through hole, and the through hole is disposed opposite to the flow channel;
[0008] A shaft seal, movably sleeved on the rotating shaft and abutting against a side of the sealing member away from the inlet; and
[0009] The elastic member is sleeved on the shaft seal and is used for elastically pushing the shaft seal against the sealing member.
[0010] When the rotating module is used, the polishing liquid is injected into the channel from the inlet, and the polishing liquid flows from the channel into the flow channel of the rotating shaft through the through hole of the seal, and flows out from one end of the rotating shaft protruding the outlet. When the rotating module is working, the rotating shaft rotates relative to the shaft seat, and drives the shaft seal to rotate together. When the contact surface of the shaft seal and the seal is worn due to relative friction, the elastic member can elastically push the shaft seal to move toward the seal, thereby compensating for the wear, so that the shaft seal and the seal always maintain abutment state, which can prevent the polishing liquid from leaking between the shaft seal and the seal when the rotating shaft rotates, thereby improving the rotation efficiency of the rotating module.
[0011] In some embodiments, the shaft seal includes a base, a limit body and a telescopic body connected between the base and the limit body, and the limit body abuts against the sealing member; the elastic member is sleeved on the telescopic body, one end of the elastic member abuts against the base, and the other end of the elastic member abuts against the limit body.
[0012] In some embodiments, the shaft seat includes a shaft sleeve and a bearing, the shaft sleeve is provided with a receiving cavity; the bearing is received in the receiving cavity and is rotatably connected to the rotating shaft, and the bearing and the receiving cavity form the channel.
[0013] In some embodiments, the receiving cavity includes a first hole, a second hole, a third hole and a fourth hole whose diameters increase successively from the inlet to the outlet; the seal, the shaft seal and the bearing are respectively installed in the second hole, the third hole and the fourth hole.
[0014] In some embodiments, the axial length of the third hole is greater than the axial length of the shaft seal, so that the limiting body moves in a direction away from the base under the action of the elastic member.
[0015] In some embodiments, an extension direction of the inlet intersects with an extension direction of the outlet.
[0016] In some embodiments, the rotating module further comprises:
[0017] A flow guide tube, one end of which is embedded in the inlet, and the other end of which protrudes out of the inlet for connecting to an external liquid inlet.
[0018] In some embodiments, a guide surface is provided on the end surface of the rotating shaft facing the sealing element, and the guide surface is arranged along the circumference of the rotating shaft.
[0019] In some embodiments, the rotating module further comprises:
[0020] A protective member is received in the passage and sleeved on an end of the sealing member away from the shaft seal.
[0021] An embodiment of the present application also provides a polishing device, comprising a rotating module as described in the above embodiment, a main shaft connected to the rotating module, a polishing wheel connected to the main shaft, and a liquid supply pipe connected to the inlet, wherein the liquid supply pipe is used to introduce polishing liquid to pass through the channel, the flow channel and the main shaft in sequence and flow to the polishing wheel. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 A schematic diagram of the structure of the rotating module provided in an embodiment of the present application.
[0023] Figure 2 for Figure 1 The cross-sectional schematic diagram of the rotating module shown is along the II-II direction.
[0024] Figure 3 for Figure 1 The exploded schematic diagram of the rotating module is shown.
[0025] Figure 4 for Figure 3 The schematic cross-sectional view of the shaft sleeve in the rotating module shown is along the IV-IV direction.
[0026] Figure 5 A schematic diagram of the structure of the polishing device provided in an embodiment of the present application.
[0027] Main component symbols
[0028] Rotating module 100
[0029] Axle seat 10
[0030] Bushing 11
[0031] Channel 12
[0032] Supply Department 121
[0033] Mounting section 122
[0034] Bearing 13
[0035] Entrance 14
[0036] Accommodation chamber 15
[0037] First hole 151
[0038] Second hole 152
[0039] The third hole 153
[0040] Fourth hole 154
[0041] Exit 16
[0042] Axis 20
[0043] Runner 22
[0044] Guide surface 24
[0045] Seal 30
[0046] Through hole 32
[0047] Shaft seal 40
[0048] Base 42
[0049] Limiting body 44
[0050] Telescopic body 46
[0051] Elastic member 50
[0052] Flow tube 60
[0053] Protective parts 70
[0054] Polishing device 200
[0055] Spindle 210
[0056] Polishing wheel 220
[0057] Liquid supply pipe 230 DETAILED DESCRIPTION
[0058] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0060] The following is a detailed description of the various embodiments of the present invention in conjunction with the accompanying drawings.
[0061] like Figure 1 , Figure 2 and Figure 3As shown, an embodiment of the present application provides a rotating module 100, which includes a shaft seat 10, a rotating shaft 20, a sealing member 30, a shaft seal 40 and an elastic member 50. The rotating module 100 is used to supply polishing liquid to the polishing wheel while the polishing machine rotates the polishing product, and at the same time can avoid leakage of the polishing liquid during the rotation process, thereby improving the rotation efficiency.
[0062] Specifically, the shaft seat 10 is provided with a channel 12, and the channel 12 includes an inlet 14 and an outlet 16 that are connected. The shaft 20 is rotatably connected to the shaft seat 10, one end of the shaft 20 is inserted in the channel 12, and the other end of the shaft 20 protrudes from the outlet 16. The shaft 20 is provided with a flow channel 22, and the flow channel 22 is connected to the channel 12. The seal 30 is provided in the channel 12 and is located between the shaft 20 and the inlet 14. The seal 30 is provided with a through hole 32, and the through hole 32 is arranged opposite to the flow channel 22. The shaft seal 40 is movably sleeved on the shaft 20 and abuts against the seal 30. The elastic member 50 is sleeved on the shaft seal 40, and is used to elastically push the shaft seal 40 against the seal 30. Exemplarily, the elastic member 50 can be a spring.
[0063] When in use, the polishing liquid is injected into the channel 12 from the inlet 14, and the polishing liquid flows from the channel 12 into the flow channel 22 of the rotating shaft 20 through the through hole 32 of the seal 30, and flows out from the end of the rotating shaft 20 protruding from the outlet 16. When the rotating module 100 is working, the rotating shaft 20 rotates relative to the shaft seat 10, and drives the shaft seal 40 to rotate together. When the contact surface of the shaft seal 40 and the seal 30 is worn due to relative friction, the elastic member 50 can elastically push the shaft seal 40 to move toward the seal 30, thereby compensating for the wear, so that the shaft seal 40 and the seal 30 always maintain abutment state, which can prevent the polishing liquid from leaking between the shaft seal 40 and the seal 30 when the rotating shaft 20 rotates, thereby improving the rotation efficiency of the rotating module 100.
[0064] See also Figure 2 and Figure 3 In some embodiments, the shaft seal 40 includes a base 42, a stopper 44, and a telescopic body 46 connected between the base 42 and the stopper 44. An elastic member 50 is sleeved on the telescopic body 46, one end of the elastic member 50 abuts against the base 42, and the other end of the elastic member 50 abuts against the stopper 44, so that the stopper 44 abuts against the seal 30.
[0065] During use, the telescopic body 46 and the elastic member 50 are in a compressed state to ensure that the limiting body 44 is always in a state of abutting the sealing member 30. After the contact between the limiting body 44 and the sealing member 30 is worn, the elastic member 50 elastically pushes the limiting body 44, stretches the telescopic body 46, and ensures that the limiting body 44 abuts against the sealing member 30.
[0066] In this embodiment, the contact surface between the shaft seal 40 and the seal 30 is set to a high-gloss mirror contact to improve the sealing effect. As the shaft seal 40 and the seal 30 continue to rub, the contact surface between the shaft seal 40 and the seal 30 will wear, and the elastic member 50 can elastically push the shaft seal 40 to move toward the seal 30, thereby compensating for the wear, maintaining the contact between the shaft seal 40 and the seal 30, and ensuring the sealing effect. In this embodiment, the seal 30 is made of a high-hardness material, such as carbide such as tungsten carbide, and the contact between the shaft seal 40 and the seal 30 is made of a material with a lower hardness than the seal 30, such as stainless steel. In this way, during use, the shaft seal 40 will wear, and the elastic member 50 elastically pushes the shaft seal 40 to move toward the seal 30 to compensate for the wear and maintain the sealing state. It should be understood that in other embodiments, the contact point between the shaft seal 40 and the seal 30 can also be made of a material with a higher hardness than the seal 30. In this way, during use, the seal 30 will wear, and the elastic member 50 will elastically push the shaft seal 40 to move toward the seal 30 to compensate for the wear and maintain the sealing state.
[0067] In this embodiment, if Figure 2 and Figure 3 As shown, the shaft seat 10 includes a shaft sleeve 11 and a bearing 13. The shaft sleeve 11 is provided with a receiving cavity 15. The bearing 13 is received in the receiving cavity 15 and is rotatably connected to the rotating shaft 20. The bearing 13 and the receiving cavity 15 form a channel 12. In this way, the shaft seat 10 uses the rotating shaft 20 and the bearing 13 to facilitate the disassembly and assembly of the rotating module 100.
[0068] like Figure 2 and Figure 4 As shown, in this embodiment, the receiving cavity 15 includes a first hole 151, a second hole 152, a third hole 153 and a fourth hole 154 with increasing diameters from the inlet 14 to the outlet 16, and the seal 30, the shaft seal 40 and the bearing 13 are respectively installed in the second hole 152, the third hole 153 and the fourth hole 154. In this way, by providing the first hole 151, the second hole 152, the third hole 153 and the fourth hole 154 with increasing sizes, the seal 30, the shaft seal 40 and the bearing 13 can be installed in place more smoothly, and it is convenient for disassembly and assembly during subsequent use.
[0069] In this embodiment, the axial length of the third hole 153 is greater than the axial length of the shaft seal 40 , so that the limiting body 44 moves in a direction away from the base 42 under the action of the elastic member 50 .
[0070] In this embodiment, the extension direction of the inlet 14 intersects with the extension direction of the outlet 16. Preferably, the angle between the extension direction of the inlet 14 and the extension direction of the outlet 16 is 90°.
[0071] In this way, the polishing liquid will change direction when flowing through the rotating module 100, thereby preventing the polishing liquid from flowing too fast when leaving the rotating module 100.
[0072] like Figure 4 As shown, the channel 12 includes a supply portion 121 connected to the inlet 14 and a mounting portion 122 connected to the outlet 16. The accommodating cavity 15 is opened in the mounting portion 122 for installing the seal 30, the shaft seal 40 and the bearing 13. The supply portion 121 is used to connect to an external liquid inlet (not shown) to supply polishing liquid to the channel 12.
[0073] like Figure 1 and Figure 2 As shown, the rotating module 100 further includes a guide tube 60, one end of which is embedded in the inlet 14, and the other end of the guide tube 60 protrudes from the inlet 14, and is used to connect to an external liquid inlet member to supply polishing liquid to the channel 12. In this way, an external polishing liquid supply source can be connected to the guide tube 60, and the polishing liquid is supplied to the rotating module 100 through the guide tube 60.
[0074] like Figure 2 and Figure 3 As shown, a guide surface 24 is provided on the end surface of the rotating shaft 20 facing the sealing member 30 . The guide surface 24 is arranged along the circumference of the rotating shaft 20 to guide the polishing liquid to flow quickly from the channel 12 into the flow channel 22 .
[0075] In this embodiment, the guide surface 24 is formed as a conical surface inclined toward the flow channel 22, so that the outer surface of the rotating shaft 20 and the shaft seal 40 that are in contact with each other at the guide surface 24 is higher than the inner surface. In this way, when the polishing liquid flows from the channel 12 into the flow channel 22, it can quickly flow into the flow channel 22 under the guidance of the guide surface 24, and avoid staying at the rotating shaft 20.
[0076] like Figure 2 and Figure 3 As shown, the rotating module 100 further includes a protective member 70, which is received in the channel 12 and sleeved on an end of the seal 30 away from the shaft seal 40. Therefore, the protective member 70 can prevent the seal 30 from directly contacting the shaft sleeve 11, reduce the wear of the seal 30 during use, and thus increase the service life of the seal 30. In addition, the protective member 70 can be made of a flexible material, such as a plastic material such as rubber, so that after a period of use, even if the wear of the contact surface of the seal 30 and the shaft seal 40 is slightly uneven, with the help of the protective member 70, the seal 30 and the shaft seal 40 can still be aligned and maintain surface contact, thereby extending the service life of the rotating module 100.
[0077] like Figure 5As shown, the present application embodiment also provides a polishing device 200, the polishing device 200 includes the rotating module 100 as described in the above embodiment, a spindle 210 connected to the rotating module 100, a polishing wheel 220 and a polishing wheel 220 connected to the inlet 14 (such as Figure 2 The liquid supply pipe 230 is used to introduce the polishing liquid through the channel 12 (as shown in FIG. Figure 2 As shown) and flow channel 22 (as Figure 2 As shown), it flows to the polishing wheel 220.
[0078] Please refer to Figure 2 and Figure 5 When the polishing device 200 is used, the polishing liquid is injected into the channel 12 from the liquid supply pipe 230 through the guide pipe 60 from the inlet 14, and then flows from the channel 12 through the through hole 32 of the seal 30 into the flow channel 22 of the rotating shaft 20, and is supplied to the polishing wheel 220 through the flow channel 22 and the main shaft 210, so as to provide the polishing liquid for the polishing wheel 220 in real time. When the polishing device 200 is working, the polishing wheel 220, the main shaft 210 and the rotating shaft 20 rotate relative to the shaft seat 10, and drive the shaft seal 40 to rotate together. When the contact surface of the shaft seal 40 and the seal 30 is worn due to relative friction, the elastic member 50 can elastically push the shaft seal 40 to move toward the seal 30, thereby compensating for the wear amount, so that the shaft seal 40 and the seal 30 always maintain abutment state, and can prevent the polishing liquid from leaking from between the shaft seal 40 and the seal 30 when the rotating shaft 20 rotates, causing the failure of the polishing device 200, thereby reducing the maintenance frequency of the polishing device 200 and extending its service life.
[0079] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.
[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.
Claims
1. A rotating module, characterized in that: include: The shaft seat is provided with a passage, wherein the passage includes an inlet and an outlet that are connected; A rotating shaft, rotatably connected to the shaft seat, one end of the rotating shaft is inserted into the channel, the other end of the rotating shaft protrudes from the outlet, and the rotating shaft is provided with a flow channel connected to the channel; A sealing member is disposed in the channel and between the rotating shaft and the inlet, wherein the sealing member is provided with a through hole, and the through hole is disposed opposite to the flow channel; A shaft seal, movably sleeved on the rotating shaft and abutting against a side of the sealing member away from the inlet; and The elastic member is sleeved on the shaft seal and is used for elastically pushing the shaft seal against the sealing member.
2. The rotating module according to claim 1, characterized in that: The shaft seal comprises a base, a limiting body and a telescopic body connected between the base and the limiting body, wherein the limiting body abuts against the sealing member; The elastic member is sleeved on the telescopic body, one end of the elastic member is in contact with the base, and the other end of the elastic member is in contact with the limiting body.
3. The rotating module according to claim 2, characterized in that: The shaft seat comprises: The shaft sleeve is provided with a receiving cavity; A bearing is received in the receiving cavity and is rotatably connected to the rotating shaft, and the bearing and the receiving cavity form the channel.
4. The rotating module according to claim 3, characterized in that: The receiving cavity includes a first hole, a second hole, a third hole and a fourth hole with increasing diameters in sequence from the inlet to the outlet; The sealing member, the shaft seal and the bearing are installed in the second hole, the third hole and the fourth hole respectively.
5. The rotating module according to claim 4, characterized in that: The axial length of the third hole is greater than the axial length of the shaft seal, so that the limiting body moves in a direction away from the base under the action of the elastic member.
6. The rotating module according to claim 1, characterized in that: An extending direction of the inlet intersects with an extending direction of the outlet.
7. The rotating module according to claim 1, characterized in that: The rotating module also includes: A flow guide tube, one end of which is embedded in the inlet, and the other end of which protrudes out of the inlet for connecting to an external liquid inlet.
8. The rotating module according to claim 1, characterized in that: The end surface of the rotating shaft facing the sealing member is provided with a flow guiding surface, and the flow guiding surface is arranged along the circumference of the rotating shaft.
9. The rotating module according to claim 1, characterized in that: The rotating module also includes: A protective member is received in the passage and sleeved on an end of the sealing member away from the shaft seal.
10. A polishing device, characterized in that: include: The rotating module according to any one of claims 1 to 9; A main shaft connected to the rotating module; A polishing wheel connected to the main shaft; A liquid supply pipe is connected to the inlet and is used to introduce polishing liquid to sequentially pass through the channel, the flow channel and the main shaft and flow to the polishing wheel.