Water, electricity and gas slip ring with high sealing performance

Abstract

The utility model discloses a water, electricity and gas slip ring with high sealing performance, which comprises a stator shell, end covers are fixedly mounted on the outer surfaces of two ends of the stator shell, a rotor is arranged in the stator shell, a threaded fixing hole is formed in the outer surface of one end of the rotor, and the rotor is in a stepped design. And a sealing mechanism is arranged between the rotor and the stator shell, so that the introduced refrigerant is prevented from leaking and causing short-circuit damage to the slip ring assembly through the sealing mechanism. According to the hydro-electric slip ring with the high sealing performance, the ball bearing, the framework oil seal and the supporting frame can be stably installed on the outer surface of the rotor through the step design of the rotor, the framework oil seal and the supporting frame are more stable through clamping of the ball bearing and the end cover, and the sealing performance of the hydro-electric slip ring is improved through the toughness and supporting performance of the framework oil seal and the supporting frame. When gas and liquid enter the space between the stator shell and the rotor, the framework oil seal does not deform to cause leakage of the liquid and the gas and damage of the slip ring.

Description

Technical Field

[0001] The utility model relates to the technical field of water, electricity and gas slip rings, in particular to a water, electricity and gas slip ring with high sealing performance. Background Technique

[0002] A water, electricity and gas slip ring is a rotary connection device used to transmit various media such as water, electricity and gas. Its main function is to achieve reliable media transmission between two relatively rotating components, and to supply power, cool and lubricate or meet other process requirements for rotating workpieces. It is widely used in various mechanical equipment and systems, such as wind turbines, industrial robots, offshore platforms, medical equipment, machining, etc., to ensure that it can meet specific application requirements. However, most of the water, electricity and gas slip rings on the market currently adopt the graphite compression ring sealing form. When transmitting water and gas, due to the high pressure, the graphite compression ring cannot seal the water and gas, resulting in easy leakage of water and gas and causing damage. Content of the Utility Model

[0003] The purpose of the utility model is to provide a water, electricity and gas slip ring with high sealing performance to solve the problem of easy leakage caused by too high pressure of water and gas proposed in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A water, electricity and gas slip ring with high sealing performance, including a stator housing, both ends of the outer surface of the stator housing are fixedly installed with end covers, and through holes are opened on the outer surface of the end covers, and an exhaust pipeline is fixedly installed on the outer surface of the end covers. A rotor is arranged inside the stator housing, and threaded fixing holes are opened on one end of the outer surface of the rotor, and the rotor is connected to a rotating workpiece disk. A cable passing hole is drilled on the outer surface of the stator housing, and the cable passing hole is inclined. One end of the rotor located inside the stator housing is inserted and installed with a slip ring assembly, and the slip ring assembly is concentric with the rotor, and the other end of the slip ring assembly is fixedly arranged inside the stator housing. The rotor is of a stepped design. A sealing mechanism is arranged between the rotor and the stator housing, and through the sealing mechanism, the introduced refrigerant will not leak and cause short-circuit damage to the slip ring assembly.

[0005] Preferably, the sealing mechanism includes: a skeleton oil seal, the skeleton oil seals are evenly inserted on the outer surface of the rotor, and the inner surface of the skeleton oil seals is closely attached to the outer surface of the rotor, and the outer surface of the skeleton oil seals is attached to the inner surface of the stator housing. The stator housing and the rotor are concentrically designed, and the rotor and the skeleton oil seals are concentrically designed. A support frame is arranged between the skeleton oil seals, and the side surface of the support frame is closely attached to the side surface of the skeleton oil seals. A wiring terminal is arranged inside the rotor, and through holes are opened on the outer surface of the rotor.

[0006] With the above technical solution, through the toughness of the skeleton oil seal and the support of the support frame, the skeleton oil seals can be spaced apart. Through the toughness and support of the skeleton oil seal itself, the stator housing and the rotor clamp the skeleton oil seal, strengthening the support of the skeleton oil seal, so that when water and gas move through the skeleton oil seal, they can withstand greater pressure, and water and gas will not leak and cause damage.

[0007] Preferably, a heat dissipation and circulation mechanism is provided between the stator housing and the rotor. The heat generated when the rotor rotates is removed through the heat dissipation and circulation mechanism, and the heat of the rotating workpiece is reduced.

[0008] With the above technical solution, the stator housing and the rotor itself can be cooled down, and the heat of the rotating workpiece disk can be taken away.

[0009] Preferably, the heat dissipation and circulation mechanism includes: a water inlet pipeline, which is arranged inside the stator housing, and one end of the water inlet pipeline is close to the end cover. An outlet water pipeline is arranged inside the stator housing, and one end of the outlet water pipeline is close to the end cover. The other end of the outlet water pipeline is higher than the water outlet end of the water inlet pipeline. An inlet water pipeline is arranged inside the rotor, and one end of the inlet water pipeline penetrates the outer surface of the rotor. One end of the inlet water pipeline is at the same height as one end of the water inlet pipeline, and the water inlet pipeline and the inlet water pipeline are located between the skeleton oil seals. A return water pipeline is arranged inside the rotor, and the height of one end of the return water pipeline is the same as the height of one end of the outlet water pipeline, and one ends of the outlet water pipeline and the return water pipeline are both located between the skeleton oil seals. The skeleton oil seal and the support frame are concentrically designed, and through holes are provided on the outer surface of the support frame. Sealing plugs are arranged at one ends of the inlet water pipeline and the return water pipeline, and the outer surfaces of the sealing plugs of the inlet water pipeline and the return water pipeline are attached to the outer surface of the rotating workpiece disk.

[0010] With the above technical solution, when in use, the refrigerant will be discharged into the space between the stator housing and the rotor through the water inlet pipeline and blocked by the skeleton oil seal. Then the refrigerant will pass through the through holes of the support frame and enter the inside of the rotor. The refrigerant will enter the rotating workpiece disk through the inlet water pipeline to take away heat, then enter the return water pipeline and be discharged into the space between the housing and the rotor again, and be blocked by the skeleton oil seal again, and then be discharged to the outside through the outlet water pipeline to take away the heat of the stator housing, the rotor and the rotating workpiece disk.

[0011] Preferably, a gas circulation mechanism is provided between the stator housing and the rotor. The heat generated when the slip ring assembly rotates and is energized is taken away through the gas circulation mechanism, reducing the poor contact caused by overheating and oxidation of the slip ring assembly.

[0012] With the above technical solution, the heat of the lower half of the rotor can be taken away, the heat generated when the slip ring assembly rotates and is energized can be reduced, and the poor contact caused by oxidation can be reduced.

[0013] Preferably, the gas circulation mechanism includes: a gas pipeline, which is arranged inside the stator housing, and the inside of the stator housing is penetrated by the gas pipeline, and the gas pipeline is located between the skeleton oil seals. An air outlet pipeline is arranged inside the rotor, and one end of the air outlet pipeline penetrates the outer surface of the rotor. The stator housing and the support frame are concentrically designed, and the support frame, the gas pipeline and the air outlet pipeline are at the same height. The inside of the rotor is hollow, and fixed heat sinks are inserted inside the rotor, and the fixed heat sinks are fixedly connected to the terminal blocks. The inner surface of the stator housing is attached to the side surface of the ball bearing. The outer surface of the rotor is attached to the outer surface of the rotating workpiece disc. The outer surface of the fixed heat sink is attached to the outer surface of the rotating workpiece disc. Heat dissipation fins are fixedly installed on the outer surface of the stator housing.

[0014] With the above technical solution, air is introduced into the inside of the stator housing through the gas pipeline, and the air will enter between the skeleton oil seals and take away heat. Then the gas will enter the air outlet pipelines through the support frame, and then enter the through holes of the rotor. At the same time, the gas will pass through the heat sinks to take away heat and be discharged outward from the exhaust pipeline again. At the same time, the heat dissipation fins can also dissipate the heat of the stator housing.

[0015] Preferably, a ball bearing is inserted and installed on the outer surface of the rotor, and the ball bearing is engaged with the rotor. The outer surface of the ball bearing is attached to the outer surface of the skeleton oil seal. An elastic snap ring is engaged and installed at one end of the rotor close to the slip ring assembly, and the outer surface of the elastic snap ring is engaged with the ball bearing. A support and fixing platform is engaged and installed at one end of the rotor, and the outer surface of the support and fixing platform is attached to the outer surface of the end cover. A ball bearing is inserted and installed on the outer surface of the support and fixing platform, and the outer surface of the ball bearing is attached to the end cover. The side surfaces of the ball bearings are all attached to the inner surface of the stator housing.

[0016] With the above technical solution, by snapping the elastic snap ring into the rotor, the ball bearing, the skeleton oil seal and the support frame can be limited to prevent the displacement of the skeleton oil seal and the support frame. And the rotor can be fixed by the end cover and the support and fixing platform. While preventing the displacement of the ball bearing, the skeleton oil seal and the support frame, the rotor can rotate stably, and it is convenient to replace the ball bearing, the skeleton oil seal and the support frame.

[0017] Compared with the prior art, the beneficial effects of the present utility model are: This highly sealed water, electricity and gas slip ring:

[0018] 1. Through the stepped design of the rotor, the ball bearing, skeleton oil seal and support frame can be stably installed on the outer surface of the rotor. Through the clamping of the ball bearing and the end cover, the skeleton oil seal and the support frame are more stable. Through the toughness and support of the skeleton oil seal and the support frame, when gas and liquid enter between the stator housing and the rotor, the skeleton oil seal will not be deformed, causing liquid and gas leakage and causing damage to the slip ring;

[0019] 2. The refrigerant is sent into the stator housing and the inside of the rotor through the water inlet pipe, blocked by the skeleton oil seal, and enters the water inlet pipe from the through hole of the support frame, and then enters the rotating workpiece disk from the water inlet pipe for cooling, and then is discharged from the rotating workpiece disk through the return pipe and then discharged back to the inside of the stator housing and the rotor, and discharged to the outside from the water outlet pipe. The heat of the stator housing, the rotor and the rotating workpiece disk is taken away by the refrigerant, so that the workpiece can also be cooled while rotating;

[0020] 3. When the gas is sent into the stator housing and the inside of the rotor through the gas pipeline, the skeleton oil seal will prevent the gas from leaking to the outside and discharge it to the outside through the outlet pipeline, so that the gas enters the through hole of the rotor, passes through the heat sink and takes away the heat, and finally is discharged to the outside from the exhaust pipeline to take away the heat transmitted from the slip ring assembly to the outer surface of the rotor, reduce the oxidation of the slip ring assembly due to excessive temperature, and reduce the probability of poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the stator housing and end cover of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the stator housing and the rotor of the utility model;

[0023] Figure 3 This is a schematic diagram of the cutaway three-dimensional structure of the water inlet pipeline and the gas pipeline of the utility model;

[0024] Figure 4 This is a schematic diagram of the exploded three-dimensional structure of the end cover and the skeleton oil seal of the utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional structure of the air outlet pipeline and the water inlet pipeline of the utility model;

[0026] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the stator housing and the heat dissipation fins of the utility model.

[0027] In the figure: 1. Stator housing; 2. Heat dissipation fins; 3. End cover; 4. Rotor; 5. Cable through hole; 6. Water inlet pipeline; 7. Water outlet pipeline; 8. Gas pipeline; 9. Exhaust pipeline; 10. Skeleton oil seal; 11. Support frame; 12. Slip ring assembly; 13. Elastic circlip; 14. Fixed heat sink; 15. Terminal; 16. Air outlet pipeline; 17. Water inlet pipe; 18. Return water pipe; 19. Support and fixing platform; 20. Ball bearing. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0029] Please refer to Figure 1-6 , the present invention provides a technical solution: a highly sealed water, electricity and gas slip ring, including a stator housing 1, end covers 3 are fixedly installed on the outer surfaces of both ends of the stator housing 1, and through holes are opened on the outer surface of the end cover 3, and an exhaust pipeline 9 is fixedly installed on the outer surface of the end cover 3. A rotor 4 is arranged inside the stator housing 1, and threaded fixing holes are opened on the outer surface of one end of the rotor 4, and the rotor 4 is connected to a rotating workpiece disk. A cable through hole 5 is drilled on the outer surface of the stator housing 1, and the cable through hole 5 is inclined. One end of the rotor 4 located inside the stator housing 1 is inserted and installed with a slip ring assembly 12, and the slip ring assembly 12 and the rotor 4 are concentrically designed, and the other end of the slip ring assembly 12 is fixedly arranged inside the stator housing 1. The rotor 4 is of a stepped design, and a sealing mechanism is arranged between the rotor 4 and the stator housing 1. Through the sealing mechanism, the introduced refrigerant will not leak and cause the slip ring assembly 12 to be short-circuited and damaged.

[0030] Due to the inclined design of the cable through hole 5, the cable can be more easily inserted into the stator housing 1, and the cable is connected to the slip ring assembly 12, and can be connected to the terminal 15 through the through hole on the outer surface of the rotor 4. The through hole of the rotor 4 can conveniently pass the circuit of the slip ring assembly 12 into the rotor 4. The stepped design of the rotor 4 enables the ball bearing 20, the skeleton oil seal 10 and the support frame 11 to be more easily fixed on the outer surface of the rotor 4.

[0031] The sealing mechanism includes: a skeleton oil seal 10, which is evenly inserted on the outer surface of the rotor 4. The inner surface of the rotor 4 is in close contact with the inner surface of the skeleton oil seal 10, and the outer surface of the skeleton oil seal 10 is in contact with the inner surface of the stator housing 1. The stator housing 1 and the rotor 4 are concentrically designed, and the rotor 4 and the skeleton oil seal 10 are concentrically designed. A support frame 11 is arranged between the skeleton oil seals 10, and the side surface of the support frame 11 is in close contact with the side surface of the skeleton oil seal 10. A terminal 15 is arranged inside the rotor 4, and through holes are formed on the outer surface of the rotor 4.

[0032] Through the skeleton oil seal 10 and the support frame 11, the skeleton oil seals 10 can be spaced apart. Due to the toughness and supportability of the skeleton oil seals 10, and through the clamping of the ball bearing 20, the skeleton oil seals 10 can be more stable. When the refrigerant is sent between the skeleton oil seals 10, the skeleton oil seals 10 will not deform and cause leakage, resulting in short - circuit damage to the slip - ring assembly 12.

[0033] A heat - dissipation circulation mechanism is arranged between the stator housing 1 and the rotor 4. Through the heat - dissipation circulation mechanism, the heat generated when the rotor 4 rotates is removed, and the heat of the rotating workpiece is reduced. The heat - dissipation circulation mechanism includes: a water inlet pipeline 6, which is arranged inside the stator housing 1, and one end of the water inlet pipeline 6 is close to the end cover 3. A water outlet pipeline 7 is arranged inside the stator housing 1, and one end of the water outlet pipeline 7 is close to the end cover 3. The other end of the water outlet pipeline 7 is higher than the water outlet end of the water inlet pipeline 6. An inlet water pipeline 17 is arranged inside the rotor 4, and one end of the inlet water pipeline 17 penetrates the outer surface of the rotor 4. One end of the inlet water pipeline 17 is at the same height as one end of the water inlet pipeline 6, and the water inlet pipeline 6 and the inlet water pipeline 17 are located between the skeleton oil seals 10. A return water pipeline 18 is arranged inside the rotor 4, and the height of one end of the return water pipeline 18 is the same as the height of one end of the water outlet pipeline 7. One ends of the water outlet pipeline 7 and the return water pipeline 18 are both located between the skeleton oil seals 10. The skeleton oil seals 10 and the support frame 11 are concentrically designed, and through holes are formed on the outer surface of the support frame 11. Sealing plugs are arranged at one ends of the inlet water pipeline 17 and the return water pipeline 18, and the outer surfaces of the sealing plugs of the inlet water pipeline 17 and the return water pipeline 18 are in contact with the outer surface of the rotating workpiece disk.

[0034] After the refrigerant is transported from the water inlet pipeline 6 to the inside of the stator housing 1, the refrigerant will enter between the stator housing 1 and the rotor 4, and enter the inlet water pipeline 17 through the through holes of the support frame 11. The sealing plug at one end of the inlet water pipeline 17 can prevent refrigerant leakage, enabling the refrigerant to enter the rotating workpiece disk to take away heat, and then return to between the stator housing 1 and the rotor 4 again through the return water pipeline 18, and be discharged from the water outlet pipeline 7 again to take away the heat of the stator housing 1, the rotor 4 and the rotating workpiece disk.

[0035] A gas circulation mechanism is provided between the stator housing 1 and the rotor 4. The heat generated when the slip ring assembly 12 rotates while being energized is carried away by the gas circulation mechanism, reducing the poor contact caused by oxidation due to overheating of the slip ring assembly 12. The gas circulation mechanism includes: a gas pipeline 8, which is arranged inside the stator housing 1, and the inside of the stator housing 1 is penetrated by the gas pipeline 8, and the gas pipeline 8 is located between the skeleton oil seals 10. An air outlet pipeline 16 is arranged inside the rotor 4, and one end of the air outlet pipeline 16 penetrates the outer surface of the rotor 4. The stator housing 1 and the support frame 11 are concentrically designed, and the support frame 11, the gas pipeline 8, and the air outlet pipeline 16 are at the same height. The inside of the rotor 4 is hollow-designed, and a fixed heat sink 14 is inserted inside the rotor 4, and the fixed heat sink 14 is fixedly connected to the terminal 15. The inner surface of the stator housing 1 is attached to the side surface of the ball bearing 20, the outer surface of the rotor 4 is attached to the outer surface of the rotating workpiece disk, and the outer surface of the fixed heat sink 14 is attached to the outer surface of the rotating workpiece disk. The outer surface of the stator housing 1 is fixedly installed with heat dissipation fins 2.

[0036] When the gas enters between the stator housing 1 and the rotor 4 through the gas pipeline 8, the gas will enter the air outlet pipeline 16 through the through holes of the rotor 4 and enter the through holes of the rotor 4, so that the gas contacts the fixed heat sink 14 to take away the temperature of the rotor 4, and is discharged to the outside through the exhaust pipeline 9, so as to take away the heat generated when the slip ring assembly 12 rotates while being energized, and the heat dissipation fins 2 can also take away part of the heat of the stator housing 1, reducing the oxidation caused by the temperature of the slip ring assembly 12 and reducing the poor contact caused by oxidation.

[0037] The outer surface of the rotor 4 is inserted and installed with a ball bearing 20, and the ball bearing 20 is engaged with the rotor 4. The outer surface of the ball bearing 20 is attached to the outer surface of the skeleton oil seal 10. An elastic snap ring 13 is engaged and installed at one end of the rotor 4 close to the slip ring assembly 12, and the outer surface of the elastic snap ring 13 is engaged with the ball bearing 20. A support and fixing platform 19 is engaged and installed at one end of the rotor 4, and the outer surface of the support and fixing platform 19 is attached to the outer surface of the end cover 3. The outer surface of the support and fixing platform 19 is inserted and installed with a ball bearing 20, and the outer surface of the ball bearing 20 is attached to the end cover 3. The side surfaces of the ball bearings 20 are all attached to the inner surface of the stator housing 1.

[0038] The support and fixing platform 19 and the end cover 3 can clamp and fix the ball bearing 20, the skeleton oil seal 10 and the support frame 11, and can make the rotor 4 rotate more smoothly through the ball bearing 20. Through the engagement of the elastic snap ring 13 and the rotor 4, the skeleton oil seal 10 and the support frame 11 can be fixed and restricted on the outer surface of the rotor 4, and the rotor 4 will not move axially through the end cover 3 and the support and fixing platform 19.

[0039] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A highly sealed water, electricity and gas slip ring, including a stator housing (1), both ends of the outer surface of the stator housing (1) are fixedly installed with end caps (3), and through holes are provided on the outer surface of the end caps (3), and an exhaust pipeline (9) is fixedly installed on the outer surface of the end caps (3). A rotor (4) is arranged inside the stator housing (1), and threaded fixing holes are provided on the outer surface of one end of the rotor (4), and the rotor (4) is connected to a rotating workpiece disc. A cable passing hole (5) is drilled on the outer surface of the stator housing (1), and the cable passing hole (5) is designed to be inclined. A slip ring assembly (12) is inserted and installed at one end of the rotor (4) inside the stator housing (1), and the slip ring assembly (12) is concentric with the rotor (4), and the other end of the slip ring assembly (12) is fixedly arranged inside the stator housing (1). The rotor (4) is designed in a stepped shape, and it is characterized in that: A sealing mechanism is provided between the rotor (4) and the stator housing (1), so that the introduced refrigerant will not leak through the sealing mechanism and cause short - circuit damage to the slip - ring assembly (12).

2. The high-sealing water, electricity and gas slip ring according to claim 1, characterized in that: The sealing mechanism includes: a skeleton oil seal (10), the skeleton oil seal (10) is uniformly inserted on the outer surface of the rotor (4), and the outer surface of the rotor (4) is in close contact with the inner surface of the skeleton oil seal (10), and the outer surface of the skeleton oil seal (10) is in contact with the inner surface of the stator housing (1). The stator housing (1) and the rotor (4) are concentrically designed, and the rotor (4) and the skeleton oil seal (10) are concentrically designed. A support frame (11) is provided between the skeleton oil seals (10), and the side surface of the support frame (11) is in close contact with the side surface of the skeleton oil seal (10). A terminal (15) is provided inside the rotor (4), and through - holes are provided on the outer surface of the rotor (4).

3. A highly sealed water, electricity and air slip ring according to claim 1, characterized in that: A heat - dissipation circulation mechanism is provided between the stator housing (1) and the rotor (4), and the heat generated when the rotor (4) rotates is removed through the heat - dissipation circulation mechanism, and the heat of the rotating workpiece is reduced.

4. The high-sealing water, electricity and gas slip ring according to claim 3, characterized in that: The heat - dissipation circulation mechanism includes: a water inlet pipeline (6), the water inlet pipeline (6) is arranged inside the stator housing (1), and one end of the water inlet pipeline (6) is close to the end cover (3). An outlet water pipeline (7) is arranged inside the stator housing (1), and one end of the outlet water pipeline (7) is close to the end cover (3). The other end of the outlet water pipeline (7) is higher than the water outlet end of the water inlet pipeline (6). An inlet water pipeline (17) is arranged inside the rotor (4), and one end of the inlet water pipeline (17) penetrates through the outer surface of the rotor (4). One end of the inlet water pipeline (17) is at the same height as one end of the water inlet pipeline (6), and the water inlet pipeline (6) and the inlet water pipeline (17) are located between the skeleton oil seals (10). A return water pipeline (18) is arranged inside the rotor (4), and the height of one end of the return water pipeline (18) is the same as the height of one end of the outlet water pipeline (7), and one ends of the outlet water pipeline (7) and the return water pipeline (18) are both located between the skeleton oil seals (10). The skeleton oil seal (10) and the support frame (11) are concentrically designed, and through - holes are provided on the outer surface of the support frame (11). Sealing plugs are provided at one ends of the inlet water pipeline (17) and the return water pipeline (18), and the outer surfaces of the sealing plugs of the inlet water pipeline (17) and the return water pipeline (18) are in contact with the outer surface of the rotating workpiece disc.

5. A highly-sealed water, electricity and gas slip ring according to claim 1, characterized in that: A gas - circulation mechanism is provided between the stator housing (1) and the rotor (4), and the heat generated when the slip - ring assembly (12) rotates while being energized is taken away through the gas - circulation mechanism, reducing the poor contact caused by overheating and oxidation of the slip - ring assembly (12).

6. The high-sealing water, electricity and gas slip ring according to claim 5, characterized in that: The gas circulation mechanism includes: a gas pipeline (8), which is arranged inside the stator housing (1), and the inside of the stator housing (1) is penetrated by the gas pipeline (8), and the gas pipeline (8) is located between the skeleton oil seals (10). An air outlet pipeline (16) is arranged inside the rotor (4), and one end of the air outlet pipeline (16) penetrates the outer surface of the rotor (4). The stator housing (1) and the support frame (11) are concentrically designed, and the support frame (11) is at the same height as the gas pipeline (8) and the air outlet pipeline (16). The inside of the rotor (4) is hollow-designed, and a fixed heat sink (14) is inserted inside the rotor (4), and the fixed heat sink (14) is fixedly connected to the terminal (15). The inner surface of the stator housing (1) is attached to the side surface of the ball bearing (20). The outer surface of the rotor (4) is attached to the outer surface of the rotating workpiece disc. The outer surface of the fixed heat sink (14) is attached to the outer surface of the rotating workpiece disc. The outer surface of the stator housing (1) is fixedly installed with heat dissipation fins (2).

7. A highly sealed water, electricity and air slip ring according to claim 1, characterized in that: A ball bearing (20) is inserted and installed on the outer surface of the rotor (4), and the ball bearing (20) is engaged with the rotor (4). The outer surface of the ball bearing (20) is attached to the outer surface of the skeleton oil seal (10). An elastic snap ring (13) is engaged and installed at one end of the rotor (4) close to the slip ring assembly (12), and the outer surface of the elastic snap ring (13) is engaged with the ball bearing (20). A support and fixing platform (19) is engaged and installed at one end of the rotor (4), and the outer surface of the support and fixing platform (19) is attached to the outer surface of the end cover (3). A ball bearing (20) is inserted and installed on the outer surface of the support and fixing platform (19), and the outer surface of the ball bearing (20) is attached to the end cover (3).

Images