A combined high-shielding slip ring for a turntable

Abstract

The present invention discloses a combined high-shielding slip ring for a turntable, which relates to the technical field of conductive slip rings. The present invention includes a power slip ring and a signal slip ring; the power slip ring is drivingly connected to the signal slip ring; the power slip ring includes a power shaft body assembly, a power combination bracket, a power brush assembly, a power isolation cover and a power protection cover arranged coaxially; the signal slip ring includes a signal shaft body assembly, a signal combination bracket, a signal brush assembly, a signal isolation cover and a signal protection cover arranged coaxially. Through the design of the power slip ring and the signal slip ring, the two slip rings not only have a good shielding effect when used alone, but also have a shielding cavity design for their respective wiring after combination, greatly reducing the electromagnetic interference between the power and the signal inside the slip ring, thereby improving the working reliability, further reducing the error rate of the turntable during operation, and greatly improving the working efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of conductive slip rings, and in particular relates to a combined high-shielding slip ring for a turntable. Background Art

[0002] Conductive slip rings are a special type of rotary connector. They are power transmission devices that realize signal and electric power transmission between two relatively rotating mechanisms. They realize sliding electrical contact during rotation through sliding friction between the stator and rotor parts. Ordinary conductive slip rings usually do not mix high-power rings with low-frequency signal rings to avoid interference of power rings on signal rings. They are usually used in pods, locking mechanisms, artillery and other platforms, where there is no complex electromagnetic environment outside.

[0003] When ordinary slip ring users test special turntable test equipment, due to the high power of the turntable's own motor and the need to transmit power through the slip ring, it will cause certain electromagnetic interference to the inside and outside of the product; and the turntable is used in special test sites, where there are various high-power machines, complex electromagnetic fields, and complex and changeable electromagnetic interference from the outside world. This makes ordinary conductive slip rings unable to be applied to this environment and the equipment cannot complete the detection work normally. Summary of the invention

[0004] The object of the present invention is to provide a combined high-shielding slip ring for a turntable, which can isolate the interference of the high-power motor of the slip ring itself on the signal transmission of the signal loop from the inside of the slip ring, and can also isolate the influence of the external electromagnetic field on the transmission of various electrical signals of the slip ring.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention discloses a combined high-shielding slip ring for a turntable, comprising a power slip ring and a signal slip ring; the power slip ring is transmission-connected with the signal slip ring; wherein the power slip ring comprises a coaxially arranged power shaft assembly, a power combination bracket, a power brush assembly, a power isolation cover and a power protective cover; the power combination bracket is fixedly installed on the outside of the power shaft assembly, the power isolation cover is fixedly installed on one end of the power combination bracket, the power protective cover is fixedly installed between the power combination bracket and the power isolation cover, and the power brush assembly is fixedly installed between the power isolation cover and the power shaft assembly; the signal slip ring comprises a coaxially arranged signal shaft assembly, a signal combination bracket, a signal brush assembly, a signal isolation cover and a signal protective cover; the signal combination bracket is fixedly installed on the outside of the signal shaft assembly, the signal isolation cover is fixedly installed on the outside of the signal combination bracket, the signal protective cover is fixedly installed on the outside of the signal isolation cover, and the signal brush assembly is fixedly installed between the signal isolation cover and the signal shaft assembly.

[0007] Further, the stator of the power slip ring is fixedly connected to the stator of the signal slip ring by screws, and the boss on the power slip ring rotor is in clearance fit with the concave groove on the signal slip ring rotor.

[0008] Further, the power shaft body assembly is provided with a plurality of power outgoing holes uniformly distributed in the circumferential direction and a single signal outgoing hole; the signal outgoing hole is located on the axis of the power shaft body assembly, and the power outgoing holes are arranged in the circumferential direction around the signal outgoing hole.

[0009] Further, the signal combination bracket is provided with a plurality of signal ring brush lead outgoing holes uniformly distributed in the circumferential direction and a plurality of power ring brush lead outgoing holes uniformly distributed in the circumferential direction; the power ring brush lead outgoing holes are arranged outside the signal ring brush lead outgoing holes.

[0010] Further, the quantity ratio of the power ring brush lead outgoing holes to the signal ring brush lead outgoing holes is 1:1, and the quantity ratio of the power outgoing holes to the power ring brush lead outgoing holes is 1:1.

[0011] Further, both the power isolation cover and the signal isolation cover are made of non-magnetic 2Cr13 material; the power shaft body assembly, the power combination bracket and the power protection cover are all made of non-magnetic 2Cr13 material; the signal shaft body assembly, the signal combination bracket and the signal protection cover are all made of non-magnetic 2Cr13 material.

[0012] The present invention has the following beneficial effects:

[0013] 1. Through the design of the power slip ring and the signal slip ring, the two slip rings not only have good shielding effects when used alone, but also have a shielding cavity design for their respective wiring after combination, greatly reducing the electromagnetic interference between the power and the signal inside the slip ring, thereby improving the working reliability, further reducing the error rate of the turntable during operation, and greatly improving the working efficiency.

[0014] 2. The whole product of the present invention is shielded from the outside world, greatly reducing the electromagnetic interference from the external environment to the inside of the power slip ring and the signal slip ring, and effectively ensuring the signal stability during the operation of the turntable.

[0015] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings without creative efforts based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a combined high-shielding slip ring for a turntable.

[0018] Figure 2 It is a schematic structural diagram of one end part of a combined high-shielding slip ring for a turntable.

[0019] Figure 3 It is a schematic structural diagram of the other end part of a combined high-shielding slip ring for a turntable.

[0020] Figure 4 It is a schematic structural diagram of a power slip ring.

[0021] Figure 5 For Figure 4 It is a schematic structural diagram of the left end part of the power slip ring shown in

[0022] Figure 6 For Figure 4 It is a schematic structural diagram of the right end part of the power slip ring shown in

[0023] Figure 7 It is a schematic structural diagram of a signal slip ring.

[0024] Figure 8 For Figure 7 It is a schematic structural diagram of the left end part of the signal slip ring shown in

[0025] Figure 9 For Figure 7 It is a schematic structural diagram of the right end part of the signal slip ring shown in

[0026] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0027] 1 - Power slip ring, 11 - Power shaft body assembly, 12 - Power combined bracket, 13 - Power brush assembly, 14 - Power isolation cover, 15 - Power protection cover, 2 - Signal slip ring, 21 - Signal shaft body assembly, 22 - Signal combined bracket, 23 - Signal brush assembly, 24 - Signal isolation cover, 25 - Signal protection cover. Detailed implementation manners

[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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-9, the present invention is a combined high-shielding slip ring for a turntable, including a power slip ring 1 and a signal slip ring 2; the power slip ring 1 is drivingly connected to the signal slip ring 2, enabling the power slip ring 1 and the signal slip ring 2 to be combined into a slip ring for a turntable; the self-structural materials of the power slip ring 1 and the signal slip ring 2 are both non-magnetic 2Cr13 materials, and each has good magnetic isolation performance for the outside world when used alone;

[0030] Among them, the power slip ring 1 includes a power shaft body assembly 11, a power combination bracket 12, a power brush assembly 13, a power isolation cover 14, and a power protection cover 15 arranged coaxially;

[0031] The power combination bracket 12 is fixedly installed outside the power shaft body assembly 11, the power isolation cover 14 is fixedly installed at one end of the power combination bracket 12, the power protection cover 15 is fixedly installed between the power combination bracket 12 and the power isolation cover 14, and the power brush assembly 13 is fixedly installed between the power isolation cover 14 and the power shaft body assembly 11;

[0032] The signal slip ring 2 includes a signal shaft body assembly 21, a signal combination bracket 22, a signal brush assembly 23, a signal isolation cover 24, and a signal protection cover 25 arranged coaxially;

[0033] The signal combination bracket 22 is fixedly installed outside the signal shaft body assembly 21, the signal isolation cover 24 is fixedly installed outside the signal combination bracket 22, the signal protection cover 25 is fixedly installed outside the signal isolation cover 24, and the signal brush assembly 23 is fixedly installed between the signal isolation cover 24 and the signal shaft body assembly 21.

[0034] In this embodiment, the stator of the power slip ring 1 and the stator of the signal slip ring 2 are fixedly connected by screws, and the boss on the rotor of the power slip ring 1 and the concave groove on the rotor of the signal slip ring 2 are in clearance fit, thereby realizing the transmission between the power slip ring 1 and the signal slip ring 2.

[0035] In this embodiment, the power shaft body assembly 11 is provided with a plurality of power outlet holes evenly distributed in the circumferential direction and a single signal outlet hole; the signal outlet hole is located on the axis of the power shaft body assembly 11, and the power outlet holes are arranged in the circumferential direction around the signal outlet hole;

[0036] Considering the electromagnetic interference between the internal wiring of the ring leads of the power slip ring 1 and the signal slip ring 2, the power shaft body assembly 11 is designed with 4 power outlet holes and 1 signal outlet hole. Among them, the middle signal outlet hole separates the signal line from the power line completely through the envelope design of the power shaft body assembly 11, so that electromagnetic isolation is achieved between the power ring ring leads and the signal ring ring leads in the ring body.

[0037] In this embodiment, the signal combination bracket 22 is provided with a plurality of circumferentially evenly distributed signal loop brush lead outlet holes and a plurality of circumferentially evenly distributed power loop brush lead outlet holes; the power loop brush lead outlet holes are arranged outside the signal loop brush lead outlet holes;

[0038] Considering the electromagnetic interference between the internal wiring of the brush leads of the power slip ring 1 and the signal slip ring 2, the signal combination bracket 22 is designed with 8 circumferential outlet holes, among which 4 circumferential outlet holes in the inner circle are signal loop brush lead outlet holes, and 4 circumferential outlet holes in the outer circle are power loop brush lead outlet holes.

[0039] In this embodiment, the ratio of the number of power loop brush lead outlet holes to the number of signal loop brush lead outlet holes is 1:1, and the ratio of the number of power outlet holes to the number of power loop brush lead outlet holes is 1:1; both the power isolation cover 14 and the signal isolation cover 24 are made of magnetic isolation 2Cr13 material; the electromagnetic interference during the internal wiring is shielded between the signal loop brush lead and the power loop brush lead through the power isolation cover 14 and the signal isolation cover 24, and the electromagnetic interference between the brush lead and the power brush assembly 13 and the signal brush assembly 23 is also shielded.

[0040] In this embodiment, the power shaft body assembly 11, the power combination bracket 12, and the power protective cover 15 are all made of magnetic isolation 2Cr13 material; the signal shaft body assembly 21, the signal combination bracket 22, and the signal protective cover 25 are all made of magnetic isolation 2Cr13 material; these magnetic isolation materials isolate the slip ring itself from external electromagnetic interference, so that the product has a very strong shielding effect on external electromagnetic interference.

[0041] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A combined high-shielding slip ring for a turntable, characterized in that: it includes a power slip ring (1) and a signal slip ring (2); the power slip ring (1) is drivingly connected to the signal slip ring (2); wherein, the power slip ring (1) includes a power shaft body assembly (11), a power combined bracket (12), a power brush assembly (13), a power isolation cover (14) and a power protection cover (15) which are coaxially arranged; the power combined bracket (12) is fixedly installed outside the power shaft body assembly (11), the power isolation cover (14) is fixedly installed at one end of the power combined bracket (12), the power protection cover (15) is fixedly installed between the power combined bracket (12) and the power isolation cover (14), and the power brush assembly (13) is fixedly installed between the power isolation cover (14) and the power shaft body assembly (11); the signal slip ring (2) includes a signal shaft body assembly (21), a signal combined bracket (22), a signal brush assembly (23), a signal isolation cover (24) and a signal protection cover (25) which are coaxially arranged; the signal combined bracket (22) is fixedly installed outside the signal shaft body assembly (21), the signal isolation cover (24) is fixedly installed outside the signal combined bracket (22), the signal protection cover (25) is fixedly installed outside the signal isolation cover (24), and the signal brush assembly (23) is fixedly installed between the signal isolation cover (24) and the signal shaft body assembly (21); the power shaft body assembly (11) is provided with a plurality of power outlet holes evenly distributed in the circumferential direction and a single signal outlet hole; the signal outlet hole is located on the axis of the power shaft body assembly (11), and the power outlet holes are arranged in the circumferential direction around the signal outlet hole; the signal combined bracket (22) is provided with a plurality of signal ring brush lead outlet holes evenly distributed in the circumferential direction and a plurality of power ring brush lead outlet holes evenly distributed in the circumferential direction; the power ring brush lead outlet holes are arranged outside the signal ring brush lead outlet holes.

2. The combined high-shielding slip ring for a turntable according to claim 1, characterized in that, the stator of the power slip ring (1) is fixedly connected to the stator of the signal slip ring (2) by screws, and the boss on the rotor of the power slip ring (1) is in clearance fit with the concave groove on the rotor of the signal slip ring (2).

3. The combined high-shielding slip ring for a turntable according to claim 1, characterized in that, the quantity ratio of the power ring brush lead outlet holes to the signal ring brush lead outlet holes is 1:1, and the quantity ratio of the power outlet holes to the power ring brush lead outlet holes is 1:

1.

4. The combined high-shielding slip ring for a turntable according to claim 1, characterized in that, both the power isolation cover (14) and the signal isolation cover (24) are made of non-magnetic 2Cr13 material.

5. The combined high-shielding slip ring for a turntable according to claim 1, characterized in that, both the power shaft body assembly (11), the power combined bracket (12) and the power protection cover (15) are made of non-magnetic 2Cr13 material.

6. The combined high-shielding slip ring for a turntable according to claim 1, characterized in that, The signal shaft body assembly (21), the signal combination bracket (22), and the signal protective cover (25) are all made of non-magnetic 2Cr13 material.

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