Automatic opening and closing water-cooled rotary joint for silicon carbide wafers

Abstract

This utility model discloses an automatic opening and closing water-cooled rotary joint with silicon carbide wafers, comprising a first housing and a shaped bearing sleeve. A movable head is connected inside the first housing via two first sealing rings. One end of the movable head is connected to a water supply pipe via a first silicon carbide wafer and a second silicon carbide wafer. A return spring is provided between the movable head and the water supply pipe. A water-cooled heat dissipation shell is fitted onto the outer side of the shaped bearing sleeve. This utility model uses the first and second silicon carbide wafers for adjustable contact; that is, the first and second silicon carbide wafers are in contact when water is introduced, and are disconnected when not in operation, reducing friction during normal use and increasing lifespan. The water-cooled heat dissipation shell delivers cooling water to the spiral water channel on the inner wall through water-cooling inlet and outlet holes, allowing the cooling water to dissipate heat and cool the shaped bearing sleeve, thus maintaining the safety of the internal structure.

Description

Technical Field

[0001] This utility model applies to connectors, more specifically to water-cooled connectors, and relates to an automatic opening and closing water-cooled rotary joint with silicon carbide wafers. Background Technology

[0002] A rotary joint is a pipe connection device that allows the connected pipes to rotate relative to each other. It is used to transport various media such as gas, liquid, and oil. Its compact design and flanged connection allow for efficient integration into customer equipment.

[0003] Rotary joints typically consist of an internal bearing system and an external sealing assembly. The internal bearing system allows the rotary joint to rotate smoothly, while the external sealing assembly ensures that the medium does not leak. Typically, the design of a rotary joint allows one component to remain stationary while the other rotates, with the medium being transported through internal pipes or channels. This way, regardless of the rotation of the external component, it maintains connection to the stationary component without causing damage or leakage.

[0004] In the prior art, publication number CN222122515U, entitled "A High-Speed ​​Rotary Joint with Thermally Inserted Tungsten Carbide Seal," a housing is included. A bearing is housed inside the housing, and a hollow shaft is positioned on the front end face of the bearing. The bearing is mounted on the outer diameter of the hollow shaft using an interference fit. A shaft elastic retaining ring is located at the end of the bearing away from the hollow shaft. This invention, by using a hollow shaft, a shaft elastic retaining ring, and a bearing, and employing an interference fit to mount the bearing on the outer diameter of the hollow shaft, prevents the hollow shaft from slipping outwards. After the assembly of the hollow shaft and bearing is installed in the housing, the elastic retaining ring in the mounting hole makes the hollow shaft, bearing, and housing a unified whole, resulting in a low coefficient of friction, less frictional heat generated at the end face, high thermal conductivity, strong load-bearing capacity, and reduced likelihood of end face thermal cracking.

[0005] However, as mentioned above, the rotary joint experiences excessively high internal temperatures during use, making its internal structure prone to damage; and the two silicon carbide contact points inside are constantly in frictional contact, resulting in a short service life. Utility Model Content

[0006] One objective of this invention is to provide a new technical solution for an automatic opening and closing water-cooled rotary joint for silicon carbide wafers.

[0007] According to a first aspect of the present invention, an automatic opening and closing water-cooled rotary joint with silicon carbide wafers is provided, comprising a first housing and a shaped bearing sleeve. The interior of the first housing is connected to a movable head via two first sealing rings. One end of the movable head is connected to a water supply pipe via a first silicon carbide wafer and a second silicon carbide wafer. A return spring is provided between the movable head and the water supply pipe. A water-cooled heat dissipation shell is fitted onto the outer side of the shaped bearing sleeve.

[0008] Furthermore, a feed pipe is provided inside the first housing, one end of the movable head is movably connected to the inside of the feed pipe, and two first sealing rings are provided between the movable head and the feed pipe.

[0009] Furthermore, the first silicon carbide sheet is embedded in one end of the movable head, and the second silicon carbide sheet is embedded in one end of the water supply pipe. The first silicon carbide sheet and the second silicon carbide sheet are correspondingly arranged, and one end of the movable head is movably located inside one end of the water supply pipe.

[0010] Furthermore, the movable head has an inlet pipe inside, and the water supply pipe has an outlet pipe inside. The inlet pipe is connected to the feed pipe. One end of the inlet pipe passes through the first silicon carbide sheet and the second silicon carbide sheet in sequence. The outlet pipe is connected to the inlet pipe. The two ends of the return spring are respectively connected between the first housing and the irregular bearing sleeve. The first housing, the irregular bearing sleeve and the water-cooled heat dissipation housing are fixedly connected by an extended screw.

[0011] Furthermore, a positioning ring is fixedly provided at one end of the water supply pipe, and a support ring is engaged on the positioning ring. One end of the irregular bearing sleeve is attached to one end of the support ring, and the other end of the irregular bearing sleeve is sleeved on the water supply pipe.

[0012] Furthermore, one end of the water-cooled heat dissipation housing is movably connected to one end of the irregular bearing sleeve through a second sealing ring, and the irregular bearing sleeve is also movably connected to the support ring through a second sealing ring. Both ends of the irregular bearing sleeve are movably connected to the first housing and the water-cooled heat dissipation housing through the second sealing ring, respectively.

[0013] Furthermore, the water-cooled heat dissipation housing is provided with a water-cooled inlet hole and a water-cooled outlet hole, and a water-cooled cavity for cooling water flow is provided between the water-cooled heat dissipation housing and the irregular bearing sleeve. The water-cooled inlet hole and the water-cooled outlet hole are respectively connected to the water-cooled cavity.

[0014] Furthermore, the water-cooling cavity is configured to have a pre-reserved channel between the water-cooled heat dissipation shell and the irregular bearing sleeve.

[0015] Furthermore, the water-cooling cavity is configured to have spiral water channels on the inner wall of the water-cooled heat dissipation shell.

[0016] Furthermore, the water-cooling cavity is configured to have equally spaced water storage rings on the inner wall of the water-cooled heat dissipation shell.

[0017] The beneficial effects of this utility model are:

[0018] In use, this utility model adjusts the contact between the first silicon carbide sheet and the second silicon carbide sheet. Specifically, when water is supplied, the water pressure pushes the movable head, thereby enabling the first silicon carbide sheet to move and adjust, thus allowing the first and second silicon carbide sheets to contact each other for operation. In other words, the first and second silicon carbide sheets are in contact when water is supplied, and are in a disconnected state when not in use, reducing friction during normal use and increasing lifespan.

[0019] Furthermore, a water-cooled heat dissipation shell is fitted onto the outside of the irregular bearing sleeve. The water-cooled heat dissipation shell delivers cooling water to the spiral water channel on the inner wall through water-cooling inlet and outlet holes, allowing the cooling water to dissipate heat and cool the irregular bearing sleeve. The cooling water can reduce the temperature of the irregular bearing sleeve and maintain the safety of the internal structure.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of an automatic opening and closing water-cooled rotary joint for silicon carbide wafers in one embodiment.

[0023] Figure 2 This is a cross-sectional schematic diagram of the structure of an automatic opening and closing water-cooled rotary joint for silicon carbide wafers in one embodiment.

[0024] Figure 3 This is a partial structural schematic diagram of an automatic opening and closing water-cooled rotary joint for silicon carbide wafers in one embodiment.

[0025] Figure 4 This is a partial structural cross-sectional view of a water-cooled rotary joint for automatic opening and closing of silicon carbide wafers in one embodiment.

[0026] Figure 5 This is a schematic diagram of another part of the structure of the automatic opening and closing water-cooled rotary joint for silicon carbide wafers in one embodiment.

[0027] Figure 6 This is a cross-sectional view of another part of the structure of the water-cooled rotary joint for automatic opening and closing of silicon carbide wafers in one embodiment.

[0028] The diagram shows the following: 1. First housing; 2. Irregular bearing sleeve; 3. Moving head; 4. First sealing ring; 5. Inlet pipe; 6. Return spring; 7. First silicon carbide sheet; 8. Second silicon carbide sheet; 9. Water supply pipe; 10. Positioning ring; 11. Support ring; 12. Water-cooled inlet hole; 13. Water-cooled outlet hole; 14. Water-cooled heat dissipation housing; 15. Spiral water channel; 16. Feed pipe; 17. Discharge pipe; 18. Extended screw; 19. Second sealing ring. Detailed Implementation

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0032] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0033] like Figures 1-6 As shown, the silicon carbide wafer automatic opening and closing water-cooled rotary joint includes a first housing 1 and a special-shaped bearing sleeve 2. The inside of the first housing 1 is connected to a movable head 3 through two first sealing rings 4. One end of the movable head 3 is connected to a water supply pipe 9 through a first silicon carbide wafer 7 and a second silicon carbide wafer 8. A return spring 6 is provided between the movable head 3 and the water supply pipe 9. A water-cooled heat dissipation housing 14 is sleeved on the outside of the special-shaped bearing sleeve 2.

[0034] In this embodiment, preferably, a feed pipe 16 is provided inside the first housing 1, one end of the movable head 3 is movably connected to the inside of the feed pipe 16, and two first sealing rings 4 are provided between the movable head 3 and the feed pipe 16;

[0035] It should be noted that the feed pipe 16 is designed to input mechanical water flow. One end of the movable head 3 is connected to the inside of the feed pipe 16 to facilitate the conveying of mechanical water flow. The first sealing ring 4 is designed to maintain the seal between the movable head 3 and the feed pipe 16 to prevent leakage of mechanical water flow.

[0036] In this embodiment, preferably, the first silicon carbide sheet 7 is embedded in one end of the movable head 3, and the second silicon carbide sheet 8 is embedded in one end of the water supply pipe 9. The first silicon carbide sheet 7 and the second silicon carbide sheet 8 are arranged correspondingly, and one end of the movable head 3 is movably located inside one end of the water supply pipe 9.

[0037] It should be noted that the first silicon carbide sheet 7 is embedded in the movable head 3, and the second silicon carbide sheet 8 is embedded in one end of the water supply pipe 9. This allows the movable head 3 to contact the water supply pipe 9 when the water pressure is adjusted, facilitating the connection between the first silicon carbide sheet 7 and the second silicon carbide sheet 8. Furthermore, one end of the movable head 3 is located inside the water supply pipe 9, which facilitates the delivery of mechanical water flow. In addition, the gap between the first silicon carbide sheet 7 and the second silicon carbide sheet 8 is relatively large. When not in operation, the gap between the first silicon carbide sheet 7 and the second silicon carbide sheet 8 is controlled between 1mm and 10mm.

[0038] In this embodiment, preferably, a positioning ring 10 is fixedly provided at one end of the water supply pipe 9, a support ring 11 is engaged on the positioning ring 10, one end of the irregular bearing sleeve 2 is attached to one end of the support ring 11, and one end of the irregular bearing sleeve 2 is sleeved on the water supply pipe 9.

[0039] It should be noted that the fixed installation of the positioning ring 10 and the support ring 11 facilitates the positioning and installation of the irregular bearing sleeve 2, the stable installation and connection of the irregular bearing sleeve 2, and the installation and connection of the water supply pipe 9.

[0040] In this embodiment, preferably, one end of the water-cooled heat dissipation shell 14 is movably connected to one end of the irregular bearing sleeve 2 through the second sealing ring 19, and the irregular bearing sleeve 2 is also movably connected to the support ring 11 through the second sealing ring 19. The two ends of the irregular bearing sleeve 2 are respectively movably connected to the first shell 1 and the water-cooled heat dissipation shell 14 through the second sealing ring 19.

[0041] It should be noted that the second sealing ring 19 enables the irregular bearing sleeve 2 to be sealed to the support ring 11, and also enables it to be sealed to the first housing 1 and the water-cooled heat dissipation housing 14, which can effectively prevent leakage of mechanical water flow and cooling water.

[0042] In this embodiment, preferably, the water-cooled heat dissipation shell 14 is provided with a water-cooled inlet hole 12 and a water-cooled outlet hole 13, and a water-cooled cavity for cooling water flow is provided between the water-cooled heat dissipation shell 14 and the irregular bearing sleeve 2. The water-cooled inlet hole 12 and the water-cooled outlet hole 13 are respectively connected to the water-cooled cavity. The water-cooled cavity is configured to have a cavity reserved between the water-cooled heat dissipation shell and the irregular bearing sleeve. The water-cooled cavity is configured to have a spiral water channel on the inner wall of the water-cooled heat dissipation shell. The water-cooled cavity is configured to have equally spaced water storage rings on the inner wall of the water-cooled heat dissipation shell.

[0043] It should be noted that the water-cooling inlet hole 12 and water-cooling outlet hole 13 are designed to facilitate the circulation of cooling water. The spiral water channel 15 allows the cooling water to flow inside the water-cooled heat sink 14, which facilitates the heat dissipation of the irregular bearing sleeve 2. The spiral water channel 15 can also be omitted from the inner side of the water-cooled heat sink 14. That is, the hollow inner wall of the water-cooled heat sink 14 only has the water-cooling inlet hole 12 and water-cooling outlet hole 13, and the cooling water flows naturally by pressure. Various water channels can also be set, such as spiral or straight.

[0044] In this embodiment, preferably, the movable head 3 has an inlet pipe 5 inside, and the water supply pipe 9 has an outlet pipe 17 inside. One end of the inlet pipe 5 passes through the first silicon carbide sheet 7 and the second silicon carbide sheet 8 in sequence. The inlet pipe 5 is connected to the feed pipe 16, and the outlet pipe 17 is connected to the inlet pipe 5. The two ends of the return spring 6 are respectively connected between the first housing 1 and the irregular bearing sleeve 2. The first housing 1, the irregular bearing sleeve 2 and the water-cooled heat dissipation housing 14 are fixedly connected by an extension screw 18.

[0045] It should be noted that the two ends of the movable head 3 are connected to the inlet pipe 5 and the outlet pipe 17 respectively, which facilitates the transportation of mechanical water flow. The movable head 3 is also reset and adjusted by the return spring 6 to maintain its adjustability. The extended screw 18 is used to connect the first housing 1, the irregular bearing sleeve 2 and the water-cooled heat dissipation housing 14 to maintain the integrity of the whole. The length of the inlet pipe 5 can be greater than the gap between the first silicon carbide sheet 7 and the second silicon carbide sheet 8. In this case, both the first silicon carbide sheet 7 and the second silicon carbide sheet 8 are installed on the outside of the inlet pipe 5. Alternatively, the length of the inlet pipe 5 can be less than the gap between the first silicon carbide sheet 7 and the second silicon carbide sheet 8. In this case, the first silicon carbide sheet 7 is installed on the outside of the inlet pipe 5 and the second silicon carbide sheet 8 is installed on the outside of the outlet pipe 17.

[0046] The specific operational procedures for this application are as follows:

[0047] The two ends of the rotary joint are connected to the mechanical water flow conveying pipe, so that the first housing 1 is connected to the conveying pipe through the feed pipe 16, and one end of the water pipe 9 is connected to the conveying pipe, so that the mechanical water flow can be conveyed through the feed pipe 16, the inlet pipe 5 and the outlet pipe 17.

[0048] Furthermore, the water-cooled heat dissipation housing 14 is sleeved on the outside of the irregular bearing sleeve 2, and water-cooled water inlet hole 12 and water-cooled water outlet hole 13 are provided on the water-cooled heat dissipation housing 14. The external circulating cooling water is circulated through the water-cooled water inlet hole 12 and water-cooled water outlet hole 13. The water-cooled water inlet hole 12 and water-cooled water outlet hole 13 are connected to the spiral water channel 15 on the inner wall of the water-cooled heat dissipation housing 14, so that the cooling water transported by the water-cooled water inlet hole 12 and water-cooled water outlet hole 13 flows inside the spiral water channel 15, which facilitates the heat dissipation and cooling of the irregular bearing sleeve 2. The irregular bearing sleeve 2 is in contact with the cooling water flow on the outside, which effectively achieves the cooling treatment.

[0049] Mechanical water flows into the feed pipe 16, and the pressure of the mechanical water flow pushes the movable head 3, which in turn compresses the return spring 6. This causes the first silicon carbide sheet 7 and the second silicon carbide sheet 8 to tightly connect under pressure, enabling operation. When operation stops, the mechanical water flow is disconnected, the pressure is removed, and the elasticity of the return spring 6 separates the first silicon carbide sheet 7 and the second silicon carbide sheet 8, preventing them from contacting each other, reducing friction during normal use, and increasing lifespan. This method uses a spring structure, which is compressed tightly under water pressure and springs open when there is no pressure. Alternatively, a similar electromagnetic induction method could be used, where water flows in, the switch opens, and a magnet attracts the sheets into tight contact; water flows out, and the switch closes, or a magnetic repulsion method could be used to disconnect the sheets.

[0050] Furthermore, at the connection between the moving head 3 and the feed pipe 16, multiple first sealing rings 4 are provided to ensure that mechanical water flow does not enter the bearing, and multiple second sealing rings 19 are used to make the irregular bearing sleeve 2 sealed to the first housing 1, the water-cooled heat dissipation housing 14, the positioning ring 10, and the support ring 11, to ensure sealing and prevent leakage of mechanical water flow and cooling water flow.

[0051] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A water-cooled rotary joint with automatic opening and closing of silicon carbide wafers, characterized in that: It includes a first housing (1) and a special-shaped bearing sleeve (2). The inside of the first housing (1) is connected to a movable head (3) through two first sealing rings (4). One end of the movable head (3) is connected to a water supply pipe (9) through a first silicon carbide sheet (7) and a second silicon carbide sheet (8). A return spring (6) is provided between the movable head (3) and the water supply pipe (9). A water-cooled heat dissipation housing (14) is sleeved on the outside of the special-shaped bearing sleeve (2).

2. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 1, characterized in that: The first housing (1) has an inlet pipe (16) inside, and one end of the movable head (3) is movably connected to the inside of the inlet pipe (16). Two first sealing rings (4) are provided between the movable head (3) and the inlet pipe (16).

3. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 2, characterized in that: The first silicon carbide sheet (7) is embedded in one end of the movable head (3), and the second silicon carbide sheet (8) is embedded in one end of the water supply pipe (9). The first silicon carbide sheet (7) and the second silicon carbide sheet (8) are arranged correspondingly, and one end of the movable head (3) is movably located inside one end of the water supply pipe (9).

4. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 1, characterized in that: The water-cooled heat dissipation housing (14) is provided with a water-cooled inlet hole (12) and a water-cooled outlet hole (13). A water-cooled cavity for cooling water flow is provided between the water-cooled heat dissipation housing (14) and the irregular bearing sleeve (2). The water-cooled inlet hole (12) and the water-cooled outlet hole (13) are respectively connected to the water-cooled cavity.

5. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 4, characterized in that: The water-cooling cavity is configured to have a channel reserved between the water-cooled heat dissipation shell (14) and the irregular bearing sleeve (2).

6. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 4, characterized in that: The water-cooling cavity is configured such that a spiral water channel (15) is formed on the inner wall of the water-cooled heat dissipation shell (14).

7. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 4, characterized in that: The water-cooling cavity is configured such that water storage rings with equal spacing are formed on the inner wall of the water-cooled heat dissipation shell (14).

8. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 3, characterized in that: One end of the water supply pipe (9) is fixedly provided with a positioning ring (10), and a support ring (11) is engaged on the positioning ring (10). One end of the irregular bearing sleeve (2) is attached to one end of the support ring (11), and one end of the irregular bearing sleeve (2) is sleeved on the water supply pipe (9).

9. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 8, characterized in that: One end of the water-cooled heat dissipation housing (14) is movably connected to one end of the irregular bearing sleeve (2) through a second sealing ring (19). The irregular bearing sleeve (2) is also movably connected to the support ring (11) through a second sealing ring (19). The two ends of the irregular bearing sleeve (2) are movably connected to the first housing (1) and the water-cooled heat dissipation housing (14) through the second sealing ring (19) respectively.

10. The water-cooled rotary joint for automatic opening and closing of silicon carbide wafers according to claim 9, characterized in that: The movable head (3) has an inlet pipe (5) inside, and the water supply pipe (9) has an outlet pipe (17) inside. The inlet pipe (5) is connected to the feed pipe (16). One end of the inlet pipe (5) passes through the first silicon carbide sheet (7) and the second silicon carbide sheet (8) in sequence. The outlet pipe (17) is connected to the inlet pipe (5). The two ends of the reset spring (6) are respectively connected between the first housing (1) and the irregular bearing sleeve (2). The first housing (1), the irregular bearing sleeve (2) and the water-cooled heat dissipation housing (14) are fixedly connected by an extension screw (18).

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