An airborne high speed slip ring

Abstract

The utility model provides a kind of airborne high-speed slip ring, it is related to the technical field of busbar, including shell, the top of shell is equipped with cover, the inside of shell is equipped with rotor cover, the inside of rotor cover is equipped with stator shaft, electric brush is equipped between rotor cover and stator shaft.The utility model is provided with heat dissipation hole by being set in shell bottom end, and detachable filter screen is installed inside, filter screen is positioned by sliding into the clamping groove on the surface of shell through the clamping block of side, then locking is realized by inserting the limiting hole of the limiting block in the side of filter screen, limiting block is guided by guide rod, and it is automatically reset and locked under the action of tension spring, when needing to clean or replace filter screen, just push limiting block to separate from limiting hole, filter screen can be slid along clamping groove, it is convenient to maintain, the structure guarantees that internal heat is effectively dissipated at the same time, prevent external impurities from entering equipment interior through heat dissipation hole to cause electric brush wear or short circuit, the synergistic effect of efficient heat dissipation and reliable dust prevention is realized.

Description

Technical Field

[0001] This utility model relates to the field of busbar technology, and in particular to an airborne high-speed slip ring. Background Technology

[0002] Slip rings are key components in rotating electromechanical systems such as aviation, aerospace, radar, and optoelectronic pods. Also known as slip rings or collector rings, their main function is to achieve stable transmission of power, control signals, and high-speed data between stationary and continuously rotating components. In airborne equipment, such as optoelectronic turrets of UAVs, airborne radar antennas, infrared detection systems, and communication antennas, 360° continuous rotation is often required to maintain uninterrupted power supply and real-time communication with the airborne control system. Therefore, slip rings have become a core component to ensure the normal operation of the system.

[0003] In existing technologies, traditional airborne bus rings cannot simultaneously achieve both heat dissipation and dust protection. Traditional bus rings mostly rely on natural heat dissipation and do not have efficient heat dissipation channels designed for the concentrated heat generated by brush friction and bearing operation under high-speed rotation, which leads to increased internal temperature and accelerated aging of insulating components. If heat dissipation holes are opened, there is a lack of reliable dust protection structure, or the dust protection screen is fixed with bolts, and the entire shell needs to be disassembled for cleaning and replacement, which is cumbersome, results in long downtime maintenance time, and affects the continuous operation of airborne equipment. Utility Model Content

[0004] The purpose of this invention is to solve the problems of insufficient heat dissipation capacity and unreliable dust protection of existing airborne bus rings, and to propose an airborne high-speed slip ring.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an airborne high-speed slip ring, comprising a housing, a cap at the top of the housing, a rotor sleeve inside the housing, a stator shaft inside the rotor sleeve, a brush between the rotor sleeve and the stator shaft, bearings at both ends of the stator shaft inside the rotor sleeve, one end of the stator shaft penetrating the housing and connected to a first wire sealing sleeve, one end of the rotor sleeve penetrating the cap and connected to a second wire sealing sleeve, a positioning pin fixedly connected to the lower surface of the cap, and a positioning pin formed on the surface of the housing. A fixing bolt passes through the outer shell and the cover. A sealing ring is fixedly connected to the outer surface of the cover. A sealing groove is opened on the inner side of the outer shell. A sealing ring is provided on the inner side of the cover. A heat dissipation hole is opened through the bottom of the outer shell. A filter screen is provided on the inner side of the bottom of the outer shell. A locking block is fixedly connected to the side of the filter screen. A locking groove is opened on the surface of the outer shell. A limiting block is slidably connected inside the outer shell. A limiting hole is opened on the side of the filter screen. A guide rod is fixedly connected inside the outer shell. A tension spring is sleeved on the surface of the guide rod.

[0006] Preferably, the positioning pins are fitted into the positioning holes, and there are four sets of positioning pins.

[0007] Preferably, the fixing bolts penetrate the outer shell and are threadedly connected to the cover, and there are four sets of fixing bolts.

[0008] Preferably, the sealing ring is fitted into the sealing groove.

[0009] Preferably, the inner side of the second sealing ring is in contact with the outer surface of the stator shaft, and the outer side of the second sealing ring is in contact with the inner wall of the cover.

[0010] Preferably, the first sealing ring is made of high and low temperature resistant fluororubber, and the second sealing ring is made of a composite material of polytetrafluoroethylene and nitrile rubber.

[0011] Preferably, the inner ring of the bearing is interference-fitted with the surface of the stator shaft, and the outer ring of the bearing is interference-fitted with the inner side of the rotor sleeve.

[0012] Preferably, the card block and the card slot are slidably connected.

[0013] Preferably, the limiting block is slidably connected to the limiting hole, and the limiting block is slidably connected to the guide rod.

[0014] Preferably, one end of the tension spring is fixedly connected to the side of the limiting block, and the other end of the tension spring is fixedly connected to the inner side of the outer shell.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, a positioning pin and a positioning hole are fitted between the cover and the outer shell, and a fixing bolt is used to achieve precise alignment and secure locking. At the same time, the sealing ring 1 on the outer surface of the cover is embedded in the sealing groove on the inner side of the outer shell. The sealing ring 1 is made of high and low temperature resistant fluororubber, which can effectively prevent external dust, moisture and corrosive media from entering the slip ring. The sealing ring 2 on the inner side of the cover is made of polytetrafluoroethylene and nitrile rubber composite material, thus forming a double sealing structure, further preventing contaminants from entering along the rotating shaft, ensuring the contact reliability between the brush and the conductive ring, and improving the operating stability and service life of the slip ring under high-speed rotation conditions.

[0017] 2. In this utility model, heat dissipation holes are provided at the bottom of the outer shell, and a detachable filter screen is installed inside. The filter screen is positioned by sliding into the slot on the surface of the outer shell through the side locking block, and then locked by inserting the limiting block into the limiting hole on the side of the filter screen. The limiting block is guided by the guide rod and automatically resets and locks under the action of the tension spring. When it is necessary to clean or replace the filter screen, simply push the limiting block away from the limiting hole, and the filter screen can be slid out along the slot. Maintenance is convenient. This structure ensures that the internal heat is effectively dissipated while preventing external impurities from entering the equipment through the heat dissipation holes and causing brush wear or short circuit, thus achieving a synergistic effect of efficient heat dissipation and reliable dust prevention. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of an airborne high-speed slip ring is provided for this utility model;

[0019] Figure 2 A bottom view of an airborne high-speed slip ring is provided for this utility model;

[0020] Figure 3 A cross-sectional view of an airborne high-speed slip ring is provided for this utility model;

[0021] Figure 4 An exploded view of the cover and sealing ring of an airborne high-speed slip ring is provided for this utility model;

[0022] Figure 5 An exploded view of the filter screen of an airborne high-speed slip ring is provided for this utility model;

[0023] Figure 6 This invention proposes an airborne high-speed slip ring. Figure 5 Enlarged view of point A in the middle.

[0024] Legend: 1. Outer shell; 2. Cover; 3. Rotor sleeve; 4. Stator shaft; 5. Brush; 6. Bearing; 7. Wire sealing sleeve one; 8. Wire sealing sleeve two; 9. Positioning pin; 10. Positioning hole; 11. Fixing bolt; 12. Sealing ring one; 13. Sealing groove; 14. Sealing ring two; 15. Heat dissipation hole; 16. Filter screen; 17. Locking block; 18. Locking groove; 19. Limiting block; 20. Limiting hole; 21. Guide rod; 22. Tension spring. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1: As Figures 1-6 As shown, this utility model provides a technical solution: an airborne high-speed slip ring, including a housing 1, a cap 2 at the top of the housing 1, a rotor sleeve 3 inside the housing 1, a stator shaft 4 inside the rotor sleeve 3, a brush 5 between the rotor sleeve 3 and the stator shaft 4, bearings 6 at both ends of the stator shaft 4 inside the rotor sleeve 3, one end of the stator shaft 4 penetrating the housing 1 and connected to a wire sealing sleeve 7, and one end of the rotor sleeve 3 penetrating the cap 2 and connected to a wire sealing sleeve 8. The lower surface of the cap 2 is fixedly connected to... The housing 1 has a positioning pin 9, a positioning hole 10 on its surface, a fixing bolt 11 passing through the housing 1 and the cover 2, a sealing ring 12 fixedly connected to the outer surface of the cover 2, a sealing groove 13 on the inner side of the housing 1, a sealing ring 14 on the inner side of the cover 2, a heat dissipation hole 15 passing through the bottom of the housing 1, a filter screen 16 on the inner side of the bottom of the housing 1, a locking block 17 fixedly connected to the side of the filter screen 16, a locking groove 18 on the surface of the housing 1, and a limit block 19 slidingly connected inside the housing 1. The filter screen 16 has a limiting hole 20 on its side. A guide rod 21 is fixedly connected inside the outer shell 1. A tension spring 22 is sleeved on the surface of the guide rod 21. The positioning pin 9 is fitted with the positioning hole 10. There are four sets of positioning pins 9. The sealing ring 12 is fitted with the sealing groove 13. The inner side of the sealing ring 14 is in contact with the outer surface of the stator shaft 4. The outer side of the sealing ring 14 is in contact with the inner wall of the cover 2. The inner side of 4 is in contact with the outer surface of the stator shaft 4, the outer side of the sealing ring 14 is in contact with the inner wall of the cover 2, the inner ring of the bearing 6 is in interference fit with the surface of the stator shaft 4, the outer ring of the bearing 6 is in interference fit with the inner side of the rotor sleeve 3, the locking block 17 is slidably connected with the locking groove 18, the limiting block 19 is slidably connected with the limiting hole 20, the limiting block 19 is slidably connected with the guide rod 21, one end of the tension spring 22 is fixedly connected to the side of the limiting block 19, and the other end of the tension spring 22 is fixedly connected to the inner side of the outer shell 1.

[0028] In this embodiment, sealing ring 12 is embedded in the sealing groove 13 of the outer shell 1 and fits tightly against the outer surface of the cover 2. It is made of high and low temperature resistant fluororubber, which can effectively prevent external moisture, dust and corrosive gases from entering under extreme temperature environments. At the same time, sealing ring 14 is made of polytetrafluoroethylene and nitrile rubber composite material. Its inner side fits against the outer surface of the stator shaft 4 and its outer side fits against the inner wall of the cover 2, forming a double seal for the through part of the rotating shaft, further preventing contaminants from entering the contact area of ​​the brush 5. During the operation of the equipment, the heat generated inside is dissipated to the outside through the heat dissipation hole 15 at the bottom of the outer shell 1, improving the heat dissipation efficiency. The filter screen 16 slides into and is positioned along the slot 18 via the locking block 17. The limiting block 19 automatically inserts into the limiting hole 20 of the filter screen 16 under the action of the tension spring 22, achieving quick locking and effectively preventing external dust from entering the housing and blocking the heat dissipation channel or contaminating the brush 5 assembly. When it is necessary to clean the filter screen 16, simply push the limiting block 19 to disengage it from the limiting hole 20. After overcoming the elastic force of the tension spring 22, the filter screen 16 can be slid out along the slot 18 for cleaning or replacement. The maintenance operation is simple and does not require disassembling the entire housing 1 structure, ensuring the long-term stable operation of the airborne high-speed slip ring in complex flight environments.

[0029] The working principle of this embodiment is as follows: In use, the outer casing 1 is first fixed to the stationary component of the airborne equipment. Precise alignment is achieved by engaging the positioning pin 9 on the lower surface of the cover 2 with the positioning hole 10 on the outer casing 1. Four sets of fixing bolts 11 are used to securely lock the outer casing 1 and the cover 2 together. The sealing ring 12 on the outer surface of the cover 2 is embedded in the sealing groove 13 on the inner side of the outer casing 1, ensuring that dust, moisture, and corrosive media from the external environment cannot enter the slip ring. Simultaneously, the sealing ring 14 on the inner side of the cover 2 adheres to the outer surface of the stator shaft 4 and the inner wall of the cover 2, forming a double sealing structure to further prevent contaminants from intruding into the contact area of ​​the brush 5 along the rotating shaft. Next, the rotor sleeve 3 is installed inside the outer casing 1, with the bearings 6 at both ends of the rotor sleeve 3 interference-fitted with both ends of the stator shaft 4, ensuring that the rotor sleeve 3 can rotate smoothly without wobbling. One end of the stator shaft 4 is connected to an external power supply and signal source via a wire sealing sleeve 7, and the other end is connected to the actuator at the rotating end via a wire sealing sleeve 8. When the rotating components are working, the rotor sleeve 3 rotates synchronously at high speed. The brush 5 maintains sliding contact with the conductive ring on the surface of the stator shaft 4, realizing continuous transmission of electricity and high-speed signals. During equipment operation, the heat generated inside is dissipated to the outside through the heat dissipation holes 15 at the bottom of the outer casing 1 to maintain a suitable working temperature. The filter screen 16 is positioned by sliding into the slot 18 on the surface of the outer casing 1 through the side locking block 17, and is locked by the limiting block 19 inserted into the limiting hole 20 on the side of the filter screen 16. The limiting block 19 is guided by the guide rod 21 and automatically resets and locks under the action of the tension spring 22. To ensure the filter screen 16 is securely installed, when cleaning or replacing the filter screen 16 is required, simply push the limit block 19 to overcome the elastic force of the tension spring 22 and disengage it from the limit hole 20. Then slide the filter screen 16 out along the slot 18 to complete the maintenance operation. There is no need to disassemble the entire housing 1 structure. This design not only effectively ensures the effective dissipation of internal heat, but also prevents external impurities from entering the equipment through the heat dissipation hole 15 and causing wear or short circuit of the brush 5. It achieves the synergistic effect of efficient heat dissipation and reliable dust prevention. Through the above structural design, the entire slip ring system ensures long-term stable operation in complex flight environments.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An airborne high-speed slip ring, comprising a housing (1), characterized in that: The top of the outer casing (1) is provided with a cover (2). Inside the outer casing (1) is a rotor sleeve (3). Inside the rotor sleeve (3) is a stator shaft (4). Between the rotor sleeve (3) and the stator shaft (4) is a brush (5). Inside the rotor sleeve (3) and at both ends of the stator shaft (4) are bearings (6). One end of the stator shaft (4) passes through the outer casing (1) and is connected to a wire sealing sleeve one (7). One end of the rotor sleeve (3) passes through the cover (2) and is connected to a wire sealing sleeve two (8). A positioning pin (9) is fixedly connected to the lower surface of the cover (2). A positioning hole (10) is opened on the surface of the outer casing (1). A fixing bolt (11) passes through the outer casing (1) and the cover (2). A sealing ring (12) is fixedly connected to the outer surface of the cover (2). A sealing groove (13) is provided on the inner side of the outer shell (1). A sealing ring (14) is provided on the inner side of the cover (2). A heat dissipation hole (15) is provided through the bottom end of the outer shell (1). A filter screen (16) is provided on the inner side of the bottom end of the outer shell (1). A locking block (17) is fixedly connected to the side of the filter screen (16). A locking groove (18) is provided on the surface of the outer shell (1). A limiting block (19) is slidably connected inside the outer shell (1). A limiting hole (20) is provided on the side of the filter screen (16). A guide rod (21) is fixedly connected inside the outer shell (1). A tension spring (22) is sleeved on the surface of the guide rod (21).

2. The airborne high-speed slip ring according to claim 1, characterized in that: The positioning pin (9) is fitted into the positioning hole (10), and there are four sets of positioning pins (9).

3. The airborne high-speed slip ring according to claim 1, characterized in that: The fixing bolt (11) passes through the outer shell (1) and is threadedly connected to the cover (2). There are four sets of fixing bolts (11).

4. The airborne high-speed slip ring according to claim 1, characterized in that: The sealing ring (12) is fitted into the sealing groove (13).

5. The airborne high-speed slip ring according to claim 1, characterized in that: The inner side of the second sealing ring (14) is in contact with the outer surface of the stator shaft (4), and the outer side of the second sealing ring (14) is in contact with the inner wall of the cover (2).

6. The airborne high-speed slip ring according to claim 1, characterized in that: The sealing ring one (12) is made of high and low temperature resistant fluororubber, and the sealing ring two (14) is made of polytetrafluoroethylene and nitrile rubber composite material.

7. The airborne high-speed slip ring according to claim 1, characterized in that: The inner ring of the bearing (6) is interference-fitted with the surface of the stator shaft (4), and the outer ring of the bearing (6) is interference-fitted with the inner side of the rotor sleeve (3).

8. The airborne high-speed slip ring according to claim 1, characterized in that: The card block (17) and the card slot (18) are slidably connected.

9. The airborne high-speed slip ring according to claim 1, characterized in that: The limiting block (19) is slidably connected to the limiting hole (20), and the limiting block (19) is slidably connected to the guide rod (21).

10. The airborne high-speed slip ring according to claim 1, characterized in that: One end of the tension spring (22) is fixedly connected to the side of the limiting block (19), and the other end of the tension spring (22) is fixedly connected to the inner side of the outer shell (1).

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