Dual channel water hinge

Abstract

This invention relates to the field of water hinge technology, specifically a dual-channel water hinge, comprising a rotating ring with a rotating structure on its exterior, and a docking structure for connecting water channels connected to the rotating ring; an overflow structure connected within the rotating ring; the rotating structure is sealed using a third sealing structure, and the rotating ring and the rotating structure are sealed using a first sealing structure and a second sealing structure. The embedded dual-channel design saves on the number of parts and installation space, reduces weight, and improves the power-to-weight ratio; effectively reducing processing costs. The sealing assembly uses dynamic and static ring mechanical seals, which have advantages such as reliable performance, low leakage, long service life, automatic compensation, and no frequent maintenance, and can meet the sealing requirements of harsh working conditions such as high temperature, low temperature, high pressure, high vibration, and highly corrosive media.

Description

Technical Field

[0001] This invention relates to the field of water hinge technology, specifically a dual-channel water hinge. Background Technology

[0002] Water-cooled hinges are used in the field of radar antenna array cooling technology. They serve as a rotary connection in radar cooling systems, enabling the supply and recovery of coolant between the radar ground equipment and the radar antenna array equipment during mutual rotation, and ensuring the circulation of coolant.

[0003] As radar power increases, transmission flow and pressure resistance levels are continuously improved, which in turn places higher demands on liquid rotary joints, such as high reliability, long life, large flow, high pressure resistance, and sealing performance. Therefore, there is an urgent need for a dual-channel water hinge. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a dual-channel water hinge.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a dual-channel water hinge, including a moving ring, a rotating structure is provided on the outside of the moving ring, and a docking structure for connecting water channels is connected on the moving ring; an overflow structure is connected in the moving ring; the rotating structure is sealed by a third sealing structure, and the moving ring and the rotating structure are sealed by a first sealing structure and a second sealing structure.

[0006] Specifically, the rotating structure includes a return water inlet pipe and a water inlet outlet pipe, both of which rotate outside the rotating ring, and are connected by bolts.

[0007] Specifically, the opposite ends of the return water inlet pipe and the inlet water outlet pipe are bolted with end flanges and mounting flanges. The end flanges and mounting flanges are rotatably connected to the rotating ring through angular contact bearings. A limit pin is provided between the return water inlet pipe and the end flange, and a limit pin is provided between the inlet water outlet pipe and the mounting flange.

[0008] Specifically, both the end flange and the mounting flange are bolted to end caps, and a dustproof ring is provided between the end cap and the moving ring.

[0009] Specifically, the first sealing structure includes a first pressure ring and a first energy storage sealing ring. The first energy storage sealing ring is fixed on both the end flange and the mounting flange by the first pressure ring, and the first pressure ring is fixed by bolt connection.

[0010] Specifically, the third sealing structure includes a second energy storage sealing ring and a fourth pressure ring; the second energy storage sealing ring is fixed on the water inlet and outlet pipe by the fourth pressure ring, and the fourth pressure ring is bolted to the water inlet and outlet pipe.

[0011] Specifically, the second sealing structure includes a static sealing ring and a second pressure ring. The static sealing ring is fixed to both the end flange and the mounting flange by the second pressure ring. The static sealing ring abuts against the dynamic sealing ring. The dynamic sealing ring is fixed to the ring sleeve by a third pressure ring. The ring sleeve is slidably connected to the guide pin. The guide pin is fixed to the fixed seat. The fixed seat is fixed to the dynamic ring by bolts. A positioning pin is provided between the fixed seat and the dynamic ring. A spring abuts against the ring sleeve and the fixed seat.

[0012] Specifically, the docking structure includes an inlet bend, which is fixed to the moving ring by a first fork ring, and the inlet bend is connected to the inlet and outlet pipes.

[0013] Specifically, a return water bend is fixed on the moving ring via a second fork ring, and the return water bend is connected to the return water inlet pipe.

[0014] Specifically, the overflow structure includes an overflow pipe and a connecting pipe. The dynamic ring is provided with overflow pipes at the first energy storage sealing ring, the dynamic sealing ring, and the second energy storage sealing ring. The connecting pipe connected to the overflow pipe extends to the outside of the dynamic ring; it is used for the outflow of overflow liquid when the liquid rotary joint rotates.

[0015] The beneficial effects of this invention are:

[0016] (1) The dual-channel water hinge of the present invention is made of 316L stainless steel for its main parts, which effectively solves the problem of corrosion resistance of water hinge in various harsh environments.

[0017] (2) The dual-channel water hinge described in this invention adopts an embedded dual-channel design, which effectively reduces the number of parts and the space occupied. The reduction in the number and types of parts leads to a reduction in the process flow during assembly, optimizing labor costs, raw material costs, and processing costs. The product structure based on the embedded design is more reliable and stable than similar products in the market launch stage. The dual-channel design increases the flow input of the liquid cooling unit to the surface liquid supply.

[0018] (3) The dual-channel water hinge of the present invention adopts a dynamic and static ring end face sealing structure for the sealing component. It is automatically compensated by springs. The silicon carbide and graphite materials have low friction loss and long service life. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 A cross-sectional view of the overall structure of a preferred embodiment of the dual-channel water hinge provided by the present invention;

[0021] Figure 2This is a schematic diagram of the connection structure between the return water inlet pipe and the water inlet / outlet pipe of the present invention.

[0022] Figure 3 for Figure 1 The diagram shown is an enlarged view of the structure of part A.

[0023] Figure 4 for Figure 1 The diagram shown is an enlarged view of the structure of section B.

[0024] Figure 5 for Figure 1 The diagram shown is an enlarged view of the C-section structure.

[0025] Figure 6 for Figure 2 The diagram shown is an enlarged view of the structure of part D.

[0026] Figure 7 for Figure 2 The diagram shown is an enlarged view of the E-section structure.

[0027] Figure 8 This is a perspective view of the present invention.

[0028] In the diagram: 1. Moving ring; 2. Connecting structure; 201. First shift fork ring; 202. Inlet bend; 203. Second shift fork ring; 204. Return bend; 3. Rotating structure; 301. End flange; 302. Return water inlet pipe; 303. Inlet and outlet pipes; 304. Mounting flange; 305. Angular contact bearing; 306. End cap; 307. Limit pin; 4. Overflow structure; 401. Connecting pipe; 402. Overflow pipe; 5. 6. Dustproof ring; 7. First sealing structure; 8. First pressure ring; 9. First energy storage sealing ring; 10. Second sealing structure; 11. Static sealing ring; 12. Second pressure ring; 13. Third pressure ring; 14. Dynamic sealing ring; 15. Ring sleeve; 16. Spring; 17. Fixed seat; 18. Positioning pin; 19. Guide pin; 20. Third sealing structure; 10. Second energy storage sealing ring; 11. Fourth pressure ring. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] like Figures 1-8 As shown, the dual-channel water hinge of the present invention includes a moving ring 1, a rotating structure 3 is provided on the outside of the moving ring 1, and a docking structure 2 for connecting water channels is connected to the moving ring 1; an overflow structure 4 is connected in the moving ring 1; the rotating structure 3 is sealed by a third sealing structure 8, and the moving ring 1 and the rotating structure 3 are sealed by a first sealing structure 6 and a second sealing structure 7.

[0031] Specifically, the rotating structure 3 includes a return water inlet pipe 302 and a water inlet outlet pipe 303. Both the return water inlet pipe 302 and the water inlet outlet pipe 303 rotate outside the rotating ring 1, and the return water inlet pipe 302 and the water inlet outlet pipe 303 are connected by bolts.

[0032] Specifically, the opposite ends of the return water inlet pipe 302 and the inlet water outlet pipe 303 are bolted with end flange 301 and mounting flange 304. The end flange 301 and the mounting flange 304 are rotatably connected to the moving ring 1 through angular contact bearing 305. A limit pin 307 is provided between the return water inlet pipe 302 and the end flange 301, and a limit pin 307 is provided between the inlet water outlet pipe 303 and the mounting flange 304.

[0033] Specifically, both the end flange 301 and the mounting flange 304 are bolted to end caps 306, and a dustproof ring 5 is provided between the end cap 306 and the moving ring 1.

[0034] Specifically, the first sealing structure 6 includes a first pressure ring 601 and a first energy storage sealing ring 602. The first energy storage sealing ring 602 is fixed on both the end flange 301 and the mounting flange 304 by the first pressure ring 601. The first pressure ring 601 is fixed by bolt connection.

[0035] Specifically, the third sealing structure 8 includes a second energy storage sealing ring 801 and a fourth pressure ring 802; the second energy storage sealing ring 801 is fixed on the water inlet and outlet pipe 303 by the fourth pressure ring 802, and the fourth pressure ring 802 is bolted to the water inlet and outlet pipe 303.

[0036] Specifically, the second sealing structure 7 includes a static sealing ring 701 and a second pressure ring 702. The static sealing ring 701 is fixed to both the end flange 301 and the mounting flange 304 by the second pressure ring 702. The static sealing ring 701 abuts against the dynamic sealing ring 704. The dynamic sealing ring 704 is fixed to the ring sleeve 705 by a third pressure ring 703. The ring sleeve 705 is slidably connected to the guide pin 709. The guide pin 709 is fixed to the fixed seat 707. The fixed seat 707 is fixed to the dynamic ring 1 by bolts. A positioning pin 708 is provided between the fixed seat 707 and the dynamic ring 1. A spring 706 abuts between the ring sleeve 705 and the fixed seat 707.

[0037] Specifically, the docking structure 2 includes an inlet bend 202, which is fixed to the moving ring 1 by a first fork ring 201, and the inlet bend 202 is connected to the inlet outlet pipe 303.

[0038] Specifically, a return water bend 204 is fixed on the moving ring 1 by a second fork ring 203, and the return water bend 204 is connected to the return water inlet pipe 302.

[0039] Specifically, the overflow structure 4 includes an overflow pipe 402 and a connecting pipe 401. The moving ring 1 is provided with an overflow pipe 402 at the first energy storage sealing ring 602, the moving sealing ring 704 and the second energy storage sealing ring 801. The connecting pipe 401 connected to the overflow pipe 402 extends to the outside of the moving ring 1; it is used for the overflow of liquid when the liquid rotating joint is rotating.

[0040] In use, the water inlet / outlet pipe 303 and the water return inlet pipe 302 are connected to the liquid cooling pipeline in the radar antenna array equipment to provide coolant supply and recovery for the radar antenna array equipment. The main structural components such as the mounting flange 304, end cap 306, and inner ring 1 require a high level of corrosion resistance, so 022Cr17Ni12Mo2 stainless steel is selected for processing. The 706 spring is made of 07Cr17Ni7Al stainless steel wire, ensuring both corrosion resistance and spring strength. O-ring seals are used at static seals on all non-moving parts. Three types of seals are used at dynamic seals on all moving parts of the liquid rotating joint. Rotary mechanical seals are used at the connection points between the internal flow channels and the external rotating parts. These seals are reliable, have low leakage, long service life, automatic end-face compensation, no shaft wear, and require minimal maintenance. A spring-energy-storing seal is used between the inlet and outlet in the internal cavity, with the opening of the spring-energy-storing seal facing the inlet. A spring-energy-storing seal is also used for auxiliary sealing on the outside of the mechanical seal, with the opening of the spring-energy-storing seal facing the mechanical seal. A dustproof ring 5 is installed at the outermost end cap 306 for external waterproofing and dustproofing.

[0041] The main sealing surfaces of the rotating pair are composed of dynamic and static sealing rings made of silicon carbide and graphite friction pairs. The static sealing ring 701 is assembled in the stepped hole of the mounting flange 304, and its outer circle and bottom plane are sealed with an O-ring. It is pressed by the second pressure ring 702, and a certain gap is left between the inner hole and the rotating ring 1. The dynamic sealing ring 704 is assembled in the stepped hole of the ring sleeve 705, and its outer circle and bottom plane are sealed with an O-ring. A certain gap is left between the inner hole and the rotating ring 1. The dynamic sealing ring adopts a multi-spring compression structure.

[0042] The rotating ring 1 is a major component constituting the main body. It is made of 022Cr17Ni12Mo2 stainless steel and machined as a single piece. The rotating sealing surface in contact with the spring energy storage seal is coated with ceramic to increase hardness and wear resistance. Water channels are machined inside for the circulation of coolant in the liquid cooling device. Rotary fork interfaces are designed at both ends according to the interface dimensions in the provided two-dimensional drawing for the transmission of rotational power. Overflow holes are machined at corresponding positions for overflow liquid to flow out.

[0043] The mounting flange 304 is a major component forming the main body, and it is made of 022Cr17Ni12Mo2 stainless steel and machined as a whole. It has multiple steps for assembling end caps 306, angular contact bearings 305 and other components, and multiple sealing grooves for installing O-rings and spring energy storage rings.

[0044] The inlet and outlet pipes 303 are the main components of the main body. They are made of 022Cr17Ni12Mo2 stainless steel and are machined as a whole. The flanges at both ends are used to connect to the installation pipe 304 and the return water inlet pipe 302. The outer circle has a connecting flange for the inlet and outlet, and the inner hole has a mounting wall for a spring energy storage sealing ring that separates the inlet cavity from the outlet cavity.

[0045] The return water outlet pipe 302 is the main component of the main body. It is made of 022Cr17Ni12Mo2 stainless steel and is machined as a whole. The flanges at both ends are used to connect to the end pipe 306 and the inlet and outlet pipe 303. The inlet and outlet connecting flanges are machined on one side of the outer circle.

[0046] The inlet and outlet elbows are machined from 022Cr17Ni12Mo2 stainless steel castings. One side has a mounting flange machined according to the provided 2D drawing interface dimensions, and the other side has a groove for assembling an O-ring seal at the connection point with the rotating ring. The mounting flange is made of 304 stainless steel and is machined from 022Cr17Ni12Mo2 stainless steel forgings. The mounting flange has a ring-shaped rotating structure; therefore, ring forgings are selected for material preparation. The forging material grade is 022Cr17Ni12Mo2, and the forging dimensions are...

[0047] When assembling this water hinge, first install the fixing seat 707 of the dynamic sealing ring 704 into the O-ring, and then assemble it at the step on one side of the shift fork hole of the dynamic ring 1. Install the spring 706 and guide pin 709 at the fixing seat 707. Install the ring sleeve 705 into the sealing ring, and then install the dynamic sealing ring 704. Install the assembled ring sleeve 705 into the fixing seat 707. Assemble the first energy storage sealing ring 602 at the mounting flange 304, and then assemble the first pressure ring 601. After assembling the O-ring, assemble the static sealing ring 701 and tighten it with the second pressure ring 702. Assemble the assembled mounting flange 304 at the dynamic ring 1. After placing the sealing ring in the outer groove, assemble the inlet and outlet pipes 303. After installing the O-ring, assemble the dynamic fixing seat 707 into the inlet and outlet of the dynamic ring 1. At one side of the step, a spring 706 and a guide pin 709 are installed at the movable fixed seat 707. After the sealing ring is installed, the ring 705 is installed and the movable sealing ring 704 is installed. The assembled ring 705 is then installed at the movable fixed seat 707. The first energy storage sealing ring 602 is installed at the end flange 301, followed by the first pressure ring 601. After the O-ring is installed, the static sealing ring 701 is installed and then pressed with the second pressure ring 702. The O-ring is placed in the outer groove of the inlet / outlet pipe 303 and then installed into the return water outlet pipe 302. The O-ring is then installed in the outer groove of the assembled end flange 301 and then installed at the return water inlet pipe 302. Angular contact bearings 305 are installed on both sides of the movable ring 1. After assembly, static pressure test, dynamic pressure test, and torque test are performed. After the test, pour out and drain the ethylene glycol coolant in the internal sealed cavity. Install protective covers on the exposed flanges of each inlet and outlet for sealing protection. Mark each inlet and outlet on the protective covers and wrap them with bubble wrap for protection.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-channel water hinge, characterized in that, The system includes a rotating ring (1), which has a rotating structure (3) on its outside. The rotating structure (3) includes a return water inlet pipe (302) and a water inlet outlet pipe (303). Both the return water inlet pipe (302) and the water inlet outlet pipe (303) rotate outside the rotating ring (1). The return water inlet pipe (302) and the water inlet outlet pipe (303) are connected by bolts. The opposite ends of the return water inlet pipe (302) and the water inlet outlet pipe (303) are bolted with end flanges (301) and mounting flanges (304). All flanges (304) are rotatably connected to the rotating ring (1) via angular contact bearings (305). A limit pin (307) is provided between the return water inlet pipe (302) and the end flange (301), and a limit pin (307) is provided between the inlet water outlet pipe (303) and the mounting flange (304). A docking structure (2) for connecting water circuits is connected to the rotating ring (1). An overflow structure (4) is connected in the rotating ring (1). The rotating structure (3) is sealed by a third sealing structure (8), and a first sealing structure (6) is used between the rotating ring (1) and the rotating structure (3). The second sealing structure (7) provides a seal; the third sealing structure (8) includes a second energy storage sealing ring (801) and a fourth pressure ring (802); the second energy storage sealing ring (801) is fixed on the water inlet / outlet pipe (303) by the fourth pressure ring (802), and the fourth pressure ring (802) is bolted to the water inlet / outlet pipe (303); the second sealing structure (7) includes a static sealing ring (701) and a second pressure ring (702), and the static sealing ring (701) is fixed on both the end flange (301) and the mounting flange (304) by the second pressure ring (702). 01), the static sealing ring (701) and the dynamic sealing ring (704) abut against each other. The dynamic sealing ring (704) is fixed to the ring sleeve (705) by the third pressure ring (703). The ring sleeve (705) is slidably connected to the guide pin (709). The guide pin (709) is fixed to the fixed seat (707). The fixed seat (707) is fixed to the dynamic ring (1) by bolts. A positioning pin (708) is provided between the fixed seat (707) and the dynamic ring (1). A spring (706) abuts between the ring sleeve (705) and the fixed seat (707). The docking structure (2) includes an inlet bend (202), which is fixed to the moving ring (1) by a first fork ring (201). The inlet bend (202) is connected to the inlet outlet pipe (303). A return bend (204) is fixed to the moving ring (1) by a second fork ring (203). The return bend (204) is connected to the return inlet pipe (302). The overflow structure (4) includes an overflow pipe (402) and a connecting pipe (401). The moving ring (1) is provided with an overflow pipe (402) at the first energy storage sealing ring (602), the moving sealing ring (704), and the second energy storage sealing ring (801). The connecting pipe (401) connected to the overflow pipe (402) extends to the outside of the moving ring (1). It is used for the overflow of liquid when the liquid rotating joint is rotating.

2. The dual-channel water hinge according to claim 1, characterized in that: Both the end flange (301) and the mounting flange (304) are bolted to end caps (306), and a dustproof ring (5) is provided between the end cap (306) and the moving ring (1).

3. The dual-channel water hinge according to claim 1, characterized in that: The first sealing structure (6) includes a first pressure ring (601) and a first energy storage sealing ring (602). The first energy storage sealing ring (602) is fixed on both the end flange (301) and the mounting flange (304) by the first pressure ring (601). The first pressure ring (601) is fixed by bolt connection.

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