Combined support type rotary table conductive slip ring

Abstract

The utility model discloses a combined support type rotary table conductive slip ring, which belongs to the technical field of conductive slip rings, and comprises a stator and a rotor, the stator comprises a first support and a second support, the first support and the second support are detachably connected, and the inner sides of the first support and the second support are fixedly connected with positioning rings. A plurality of electric brushes are arranged on the inner side of the positioning ring, the rotor comprises a first conducting ring and a second conducting ring, the first conducting ring is rotationally arranged on the inner side of the first support, and the second conducting ring is rotationally arranged on the inner side of the second support. According to the combined support type rotary table conductive slip ring, the first conductive ring and the second conductive ring are arranged separately, independent transmission of power current and signal current is achieved, and the shielding ring is matched to achieve isolation shielding of the power current and the signal current at the second conductive ring. The problem that power current interferes with weak current signals through space radiation and affects the signal transmission quality is solved, and the signal transmission effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of conductive slip rings, in particular to a combined bracket type turntable conductive slip ring. Background Art

[0002] Conductive slip ring is a special rotary connector. It is a power transmission device that realizes the transmission of signals and electric power between two relatively rotating mechanisms. It realizes sliding electrical contact during rotation through the sliding friction between the stator and rotor parts.

[0003] Ordinary conductive slip rings usually do not mix high-power rings and low-frequency signal rings to avoid interference between the power ring and the signal ring. They are usually used in platforms such as pods, locking mechanisms, and artillery, where there is no complex electromagnetic environment outside.

[0004] The shielding performance of the existing combined bracket turntable conductive slip ring is not ideal. At present, in the combined bracket turntable conductive slip ring that simultaneously transmits power current and signal current, since the power current is strong current and the signal current is weak current, the power current can easily interfere with the weak current signal through space radiation, affecting the signal transmission quality.

[0005] To this end, we propose a combined bracket turntable conductive slip ring to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problem of unsatisfactory shielding performance in the prior art and to propose a combined bracket type turntable conductive slip ring.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A combined bracket-type turntable conductive slip ring includes a stator and a rotor, wherein the stator includes a first bracket and a second bracket, the first bracket and the second bracket are detachably connected, and the first bracket and the second bracket are both fixedly connected to the inner side of a positioning ring, and the inner side of the positioning ring is provided with a plurality of brushes;

[0009] The rotor includes a first conductive ring and a second conductive ring, wherein the first conductive ring is rotatably arranged inside the first bracket, and the second conductive ring is rotatably arranged inside the second bracket, and the first conductive ring and the second conductive ring are fixedly connected, and the other end of the second conductive ring is fixedly connected to a mounting plate extending to the outside of the stator;

[0010] The first conductive ring is electrically connected to the brush in the first bracket, the second conductive ring is electrically connected to the brush in the second bracket, the middle parts of the facing surfaces of the first conductive ring and the second conductive ring are electrically connected, and an annular shielding layer is provided inside the second conductive ring.

[0011] Preferably, a shielding cover is fixedly mounted on the outer sides of the first bracket and the second bracket.

[0012] Preferably, the brushes are arranged in a staggered manner.

[0013] Preferably, a plurality of annular first conductive blocks are concentrically provided on a side of the first conductive ring facing the second conductive ring, and a plurality of annular second conductive blocks are correspondingly provided on a side of the second conductive ring facing the first conductive ring.

[0014] Preferably, the first conductive blocks correspond one-to-one to the brushes on the first bracket and are electrically connected.

[0015] Preferably, an annular insulating block is concentrically provided in the gaps between the plurality of first conductive blocks.

[0016] Preferably, the shielding layer is sleeved on the outside of the second conductive block.

[0017] To sum up, the technical effects and advantages of the utility model are as follows: the combined bracket-type turntable conductive slip ring realizes the independent transmission of power current and signal current through the separately arranged first conductive ring and the second conductive ring, and cooperates with the shielding ring to realize the isolation and shielding of power current and signal current at the second conductive ring. Compared with the existing device, it avoids the problem that the power current interferes with the weak current signal through spatial radiation and affects the signal transmission quality, thereby improving the signal transmission effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a cross-sectional front view of the utility model;

[0020] Figure 3 It is a cross-sectional side view of the utility model;

[0021] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0022] In the figure: 1. stator; 2. rotor; 3. first bracket; 4. second bracket; 5. positioning ring; 6. brush; 7. first conductive ring; 8. second conductive ring; 9. mounting plate; 10. shielding layer; 11. shielding cover; 12. first conductive block; 13. second conductive block; 14. insulating block; 15. first wire; 16. second wire; 17. third wire; 18. fourth wire. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Reference Figure 1-3 A combined bracket-type turntable conductive slip ring includes a stator 1 and a rotor 2. The stator 1 includes a first bracket 3 and a second bracket 4. The first bracket 3 and the second bracket 4 are detachably connected. A positioning ring 5 is fixedly connected to the inner side of the first bracket 3 and the second bracket 4. A plurality of brushes 6 are provided on the inner side of the positioning ring 5.

[0025] The rotor 2 includes a first conductive ring 7 and a second conductive ring 8. The first conductive ring 7 is rotatably arranged on the inner side of the first bracket 3, and the second conductive ring 8 is rotatably arranged on the inner side of the second bracket 4. The first conductive ring 7 and the second conductive ring 8 are fixedly connected. The other end of the second conductive ring 8 is fixedly connected to a mounting plate 9 extending to the outside of the stator 1.

[0026] The first conductive ring 7 is electrically connected to the brush 6 in the first bracket 3, the second conductive ring 8 is electrically connected to the brush 6 in the second bracket 4, the middle parts of the facing surfaces of the first conductive ring 7 and the second conductive ring 8 are electrically connected, and an annular shielding layer 10 is provided inside the second conductive ring 8.

[0027] In this combined bracket-type turntable conductive slip ring, a first conductor 15 and a second conductor 16 should be fixedly provided on the stator 1. The first conductor 15 is electrically connected to the positioning ring 5 on the first bracket 3, and the second conductor 16 is electrically connected to the positioning ring 5 on the second bracket 4. A third conductor 17 and a fourth conductor 18 should be fixedly provided on the rotor 2. The third conductor 17 is used to transmit the current of the first conductor 15, and the fourth conductor 18 is used to transmit the current of the second conductor 16.

[0028] During use, the signal current is transmitted through the first conductor 15, and the power current is transmitted through the second conductor 16. The signal current on the first conductor 15 passes through the positioning ring 5 and brush 6 on the first bracket 3, and is transmitted to the first conductive ring 7. The first conductive ring 7 then passes through the middle of the second conductive ring 8 to the third conductor 17. The power current on the second conductor 16 passes through the positioning ring 5 and brush 6 on the second bracket 4, and is transmitted to the outside of the second conductive ring 8, and then to the fourth conductor 18. The shielding layer 10 isolates and shields the signal current inside the second conductive ring 8 from the power current. The signal current is transmitted from the inside of the shielding layer 10 to the third conductor 17, and the power current is transmitted from the outside of the shielding layer 10 to the fourth conductor 18.

[0029] In order to reduce external interference, a shielding cover 11 is fixedly mounted on the outer sides of the first bracket 3 and the second bracket 4 . The outer side of the stator 1 should be made of metal and connected to the shielding cover 11 to provide electromagnetic shielding for the inner side of the stator 1 .

[0030] Reference Figure 2-4 The brushes 6 are staggered. This ensures the number of transmission channels while increasing the intervals between adjacent brushes 6, reducing interference and making the overall center of gravity more evenly distributed.

[0031] A plurality of annular first conductive blocks 12 are concentrically provided on one side of the first conductive ring 7 facing the second conductive ring 8 , and a plurality of annular second conductive blocks 13 are correspondingly provided on one side of the second conductive ring 8 facing the first conductive ring 7 .

[0032] The first conductive blocks 12 correspond to and are electrically connected to the brushes 6 on the first bracket 3 . The brushes 6 are made of elastic material, and the sides of the first conductive ring 7 and the second conductive ring 8 are provided with a plurality of conductive slots for the brushes 6 to slide.

[0033] An annular insulating block 14 is concentrically disposed in the gaps between the plurality of first conductive blocks 12. The insulating block 14 can prevent adjacent first conductive blocks 12 from being connected to each other and causing signal disorder, thereby ensuring that the signal currents are independent of each other.

[0034] The shielding layer 10 is sleeved on the outside of the second conductive block 13 to isolate and shield the signal current inside the second conductive ring 8 from the power current. The signal current is transmitted from the inside of the shielding layer 10 to the third wire 17, and the power current is transmitted from the outside of the shielding layer 10 to the fourth wire 18.

[0035] Insulating materials should be used on both sides of the shielding layer 10 and the shielding cover 11. The interior can be made of metal or carbon fiber. Metal materials (copper, aluminum, etc.) are cheaper, while carbon fiber materials have better shielding effects, but are more expensive. The corresponding material can be selected according to the application scenario. Both the shielding layer 10 and the shielding cover 11 need to be grounded. Grounding is relatively common in the field of electromagnetic shielding and will not be described in detail. The interior of the insulating block 14 mentioned above, the first wire 15, the second wire 16, the third wire 17, and the fourth wire 18 can also be shielded. The principle is the same as that of the shielding layer 10, so as to improve the anti-interference ability of the signal current.

[0036] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined support type turntable conductive slip ring, comprising a stator (1) and a rotor (2), characterized in that: The stator (1) comprises a first bracket (3) and a second bracket (4), the first bracket (3) and the second bracket (4) are detachably connected, a positioning ring (5) is fixedly connected to the inner side of each of the first bracket (3) and the second bracket (4), and a plurality of brushes (6) are provided on the inner side of the positioning ring (5); The rotor (2) comprises a first conductive ring (7) and a second conductive ring (8), wherein the first conductive ring (7) is rotatably arranged inside the first bracket (3), and the second conductive ring (8) is rotatably arranged inside the second bracket (4), and the first conductive ring (7) and the second conductive ring (8) are fixedly connected, and the other end of the second conductive ring (8) is fixedly connected to a mounting plate (9) extending to the outside of the stator (1); The first conductive ring (7) is electrically connected to the brush (6) in the first bracket (3), the second conductive ring (8) is electrically connected to the brush (6) in the second bracket (4), the middle parts of the facing surfaces of the first conductive ring (7) and the second conductive ring (8) are electrically connected, and an annular shielding layer (10) is provided inside the second conductive ring (8).

2. The combined support type turntable conductive slip ring according to claim 1, characterized in that: A shielding cover (11) is fixedly sleeved on the outer sides of the first bracket (3) and the second bracket (4).

3. The combined support type turntable conductive slip ring according to claim 1, characterized in that: The brushes (6) are arranged in a staggered manner.

4. The combined support type turntable conductive slip ring according to claim 1, characterized in that: A plurality of annular first conductive blocks (12) are concentrically provided on one side of the first conductive ring (7) facing the second conductive ring (8), and a plurality of annular second conductive blocks (13) are correspondingly provided on one side of the second conductive ring (8) facing the first conductive ring (7).

5. The combined support type turntable conductive slip ring according to claim 4, characterized in that: The first conductive blocks (12) correspond one to one with the brushes (6) on the first bracket (3) and are electrically connected.

6. The combined support type turntable conductive slip ring according to claim 5, characterized in that: An annular insulating block (14) is concentrically provided at the gaps between the plurality of first conductive blocks (12).

7. The combined support type turntable conductive slip ring according to claim 4, characterized in that: The shielding layer (10) is sleeved on the outside of the second conductive block (13).

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