A slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals

Abstract

The present invention relates to a slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals, comprising a rotor part and a stator part. An A optical signal transmission unit and an A radio frequency signal transmission unit are arranged on the stator part, and a B optical signal transmission unit and a B radio frequency signal transmission unit are arranged on the rotor part. The A radio frequency signal transmission unit and the B radio frequency signal transmission unit are arranged in a matching manner for transmitting radio frequency signals, and the A optical signal transmission unit and the B optical signal transmission unit are arranged in a matching manner for transmitting n optical signals, where n≥2. An optical path compensation unit is provided between the A optical signal transmission unit and the B optical signal transmission unit. The above solution provided by the present invention can effectively realize the simultaneous transmission of radio frequency signals and multiple optical signals, and increase the application range of the slip ring.

Description

Technical Field

[0001] The present invention relates to the field of slip rings, and particularly to a slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals. Background Art

[0002] Slip rings are classified into smooth rings, electrical slip rings, radio frequency slip rings, etc. according to their working principles. Slip rings are applied to systems that need relative rotation to transmit signals and currents. Since they need to rotate 360° without restriction to send and receive signals, a slip ring needs to be sleeved at the rotation center to ensure the smooth and uninterrupted transmission of radio frequency coaxial signals and currents during the rotation process. They have wide applications in military, industrial, commercial and other fields, such as in mobile communication, radar, high-definition cameras, video surveillance, etc. At present, the types of slip rings on the market are single and the integration degree is poor. One type of slip ring can only transmit one type of signal, or can only transmit one optical signal and one radio frequency signal, and cannot simultaneously transmit radio frequency signals and multiple optical signals, which urgently needs to be improved. Summary of the Invention

[0003] The purpose of the present invention is to provide a slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals, which can achieve the simultaneous transmission of radio frequency signals and multiple optical signals.

[0004] The technical solutions adopted by the present invention are specifically as follows.

[0005] A slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals, characterized in that: it includes a rotor part and a stator part. An A optical signal transmission unit and an A radio frequency signal transmission unit are provided on the stator part, and a B optical signal transmission unit and a B radio frequency signal transmission unit are provided on the rotor part. The A radio frequency signal transmission unit and the B radio frequency signal transmission unit are arranged in a matching manner for transmitting radio frequency signals, and the A optical signal transmission unit and the B optical signal transmission unit are arranged in a matching manner for transmitting n optical signals, n≥2. An optical path compensation unit is provided between the A optical signal transmission unit and the B optical signal transmission unit.

[0006] A further solution is: the A optical signal transmission unit includes an optical signal input connector, the B optical signal transmission unit includes an optical signal output connector, and the optical path compensation unit includes an image rotator located between the optical signal input connector and the optical signal output connector. The image rotator is a Dove prism installed for rotation.

[0007] The Dove prism is connected to a rotation adjustment component, and the rotation speed ratio of the Dove prism to the optical signal output connector is 2:1.

[0008] The A radio frequency signal transmission unit includes a radio frequency signal input connector and an A radio frequency signal transmission component. The radio frequency signal input connector and the A radio frequency signal transmission component are connected by an A radio frequency signal line. The B radio frequency signal transmission unit includes a radio frequency signal output connector and a B radio frequency signal transmission component. The radio frequency signal output connector and the B radio frequency signal transmission component are connected by a B radio frequency signal line. The A radio frequency signal transmission component and the B radio frequency signal transmission component are in contact and relatively rotatable cooperation for radio frequency signal transmission.

[0009] It further includes a housing, a fixed mounting seat, and a movable mounting seat. The fixed mounting seat is fixedly assembled at one end of the housing. The movable mounting seat is rotatably mounted on the fixed mounting seat through a bearing assembly. The B radio frequency signal transmission component is mounted on the movable mounting seat, and the A radio frequency signal transmission component is mounted on the fixed mounting seat.

[0010] The optical signal output connector and the radio frequency signal output connector are fixedly mounted on the movable mounting seat. The stator part is fixedly assembled on the housing. The rotor part is rotatably assembled relative to the stator part. The radio frequency signal input connector is fixedly assembled on the housing, and the optical signal input connector is fixedly assembled on the housing / stator part. The movable mounting seat is connected to the rotor part through a transmission member.

[0011] The transmission member is a hollow shaft body. One end of the transmission member is assembled and connected with the movable mounting member and is correspondingly arranged with the optical signal output connector. The middle part of the transmission member is inserted into the through hole in the middle of the fixed mounting seat in a hollow manner. The other end of the transmission member is assembled and connected with the rotor part.

[0012] The Dove prism is installed in the hollow shaft. An installation seat is arranged in the middle of the hollow shaft. The rotation adjustment assembly includes a C bevel gear rotatably assembled on the installation seat. The two ends of the hollow shaft are respectively rotatably installed in the A pipe body and the B pipe body. An A bevel gear is arranged at the end of the A pipe body, and a B bevel gear is arranged at the end of the B pipe body. The A bevel gear and the B bevel gear are the same. The A bevel gear and the B bevel gear are respectively arranged on the two outer sides of the C bevel gear and are both meshed and assembled with the C bevel gear. The center lines of the A bevel gear and the B bevel gear are arranged parallel to the center line of the hollow shaft. The center line of the C bevel gear is arranged perpendicular to the center line of the hollow shaft. The A pipe body is fixedly assembled on the stator part, and the B pipe body is assembled on the rotor part. Preferably, two C bevel gears are arranged at intervals along the circumferential direction of the hollow shaft.

[0013] The A radio frequency signal transmission component is composed of brush blocks, and the B radio frequency signal transmission component is composed of a ring-shaped brush plate. The outer plate surfaces of the brush blocks and the ring-shaped brush plate are in contact and relatively rotatable cooperation.

[0014] The above solution provided by the present invention can effectively realize the simultaneous transmission of radio frequency signals and multiple optical signals, and increase the application range of the slip ring. Brief Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 is Figure 1 a cross-sectional view.

[0017] Figure 3 is an assembly schematic diagram of a Dove prism and a rotation adjustment assembly.

[0018] The corresponding relationship between the components and the attached reference numerals is as follows: 100 - housing, 101 - movable mounting seat, 102 - fixed mounting seat, 103 - bearing assembly, 111 - optical signal input connector, 112 - optical signal output connector, 121 - RF signal input connector, 122 - RF signal output connector, 123 - RF signal line A, 124 - RF signal line B, 125 - brush block, 126 - annular brush plate, 131 - stator part, 132 - rotor part, 133 - transmission part, 140 - optical path compensation unit, 141 - Dove prism, 142 - hollow shaft, 143 - tube body A, 144 - tube body B, 145 - bevel gear A, 146 - bevel gear B, 147 - bevel gear C. Specific embodiments

[0019] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0020] As Figure 1 、 2 、and as shown in Fig. 3, a slip ring capable of simultaneously transmitting RF signals and multiple optical signals includes a rotor part 132 and a stator part 131. An A optical signal transmission unit and an A RF signal transmission unit are provided on the stator part 131, and a B optical signal transmission unit and a B RF signal transmission unit are provided on the rotor part 132. The A RF signal transmission unit and the B RF signal transmission unit are arranged in a matching manner for transmitting RF signals, and the A optical signal transmission unit and the B optical signal transmission unit are arranged in a matching manner for transmitting n optical signals, where n ≥ 2 (specifically, n = 4 can be selected). An optical path compensation unit 140 is provided between the A optical signal transmission unit and the B optical signal transmission unit. A further solution is that the A optical signal transmission unit includes an optical signal input connector 111, the B optical signal transmission unit includes an optical signal output connector 112, and the optical path compensation unit 140 includes an image rotator located between the optical signal input connector 111 and the optical signal output connector 112. The image rotator is a rotatably mounted Dove prism 141. The Dove prism 141 is connected to a rotation adjustment assembly, and the rotation speed ratio of the Dove prism 141 to the optical signal output connector 112 is 2:1. The above solution provided by the present invention can effectively realize the simultaneous transmission of RF signals and multiple optical signals, and increase the application range of the slip ring.

[0021] Specifically, the A radio frequency signal transmission unit includes a radio frequency signal input connector 121 and an A radio frequency signal transmission member. The radio frequency signal input connector 121 and the A radio frequency signal transmission member are connected by an A radio frequency signal line 123. The B radio frequency signal transmission unit includes a radio frequency signal output connector 122 and a B radio frequency signal transmission member. The radio frequency signal output connector 122 and the B radio frequency signal transmission member are connected by a B radio frequency signal line 124. The A radio frequency signal transmission member and the B radio frequency signal transmission member are in contact and relatively rotatable cooperation for radio frequency signal transmission. It further includes a housing 100, a fixed mounting seat 102, and a movable mounting seat 101. The fixed mounting seat 102 is fixedly assembled at one end of the housing 100. The movable mounting seat 101 is rotatably mounted on the fixed mounting seat 102 through a bearing assembly 103. The B radio frequency signal transmission member is mounted on the movable mounting seat 101, and the A radio frequency signal transmission member is mounted on the fixed mounting seat 102. The optical signal output connector 112 and the radio frequency signal output connector 122 are fixedly mounted on the movable mounting seat. The stator portion 131 is fixedly assembled on the housing 100. The rotor portion 132 is rotatably assembled relative to the stator portion 131. The radio frequency signal input connector 121 is fixedly assembled on the housing 100. The optical signal input connector 111 is fixedly assembled on the housing 100 / stator portion 131. The movable mounting seat 101 is connected to the rotor portion 132 through a transmission member 133. The transmission member 133 is a hollow shaft body. One end of the transmission member 133 is assembled and connected to the movable mounting member and is arranged corresponding to the optical signal output connector 112. The middle of the transmission member 133 is inserted into the through hole in the middle of the fixed mounting seat 102. The other end of the transmission member 133 is assembled and connected to the rotor portion 132. During use, the transmission member 133 is connected to a drive motor through a transmission assembly. The Dove prism 141 is installed in the hollow shaft 142. There is a mounting seat in the middle of the hollow shaft 142. The rotation adjustment assembly includes a C bevel gear 147 rotatably assembled on the mounting seat. The two ends of the hollow shaft 142 are respectively rotatably mounted in an A pipe body 143 and a B pipe body 144. An A bevel gear 145 is provided at the end of the A pipe body 143. A B bevel gear 146 is provided at the end of the B pipe body 144. The A bevel gear 145 and the B bevel gear 146 are the same. The A bevel gear 145 and the B bevel gear 146 are respectively arranged on two outer sides of the C bevel gear 147 and are both meshed and assembled with the C bevel gear 147. The center lines of the A bevel gear 145 and the B bevel gear 146 are arranged parallel to the center line of the hollow shaft 142. The center line of the C bevel gear 147 is arranged perpendicular to the center line of the hollow shaft 142. The A pipe body 143 is fixedly assembled on the stator portion 131. The B pipe body 144 is assembled on the rotor portion 132. Specifically, the tooth number ratio of the A bevel gear 145 to the C bevel gear 147 is 2:1. Two C bevel gears 147 are evenly spaced on the outer periphery of the hollow shaft 142.The above structure can effectively make the rotation speed ratio of the B bevel gear 146 and the Dove prism 141 be 2:1. The A bevel gear 145 is fixed, and the rotation speed of the B bevel gear 146 is the same as that of the optical signal output connector 112, so that the rotation speed ratio of the Dove prism 141 and the optical signal output connector 112 is 2:1. The A radio frequency signal transmission member is composed of the brush block 125, and the B radio frequency signal transmission member is composed of the annular brush plate 126. The outer plate surfaces of the brush block 125 and the annular brush plate 126 are in contact and relatively rotate in cooperation. The brush block 125 and the annular brush plate 126 can be in elastic abutting contact formed by an elastic strip plate, or can be in elastic abutting contact formed by elastic brush filaments.

[0022] The above solution provided by the present invention has a simple structure and low implementation cost, and can effectively adapt to the simultaneous transmission of multiple optical signals and radio frequency signals.

[0023] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, mechanisms, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals, characterized in that: It includes a rotor part and a stator part. An A optical signal transmission unit and an A radio frequency signal transmission unit are arranged on the stator part, and a B optical signal transmission unit and a B radio frequency signal transmission unit are arranged on the rotor part. The A radio frequency signal transmission unit and the B radio frequency signal transmission unit are arranged in a matching manner for transmitting radio frequency signals, and the A optical signal transmission unit and the B optical signal transmission unit are arranged in a matching manner for transmitting n optical signals, where n≥2. An optical path compensation unit is arranged between the A optical signal transmission unit and the B optical signal transmission unit; The A optical signal transmission unit includes an optical signal input connector, the B optical signal transmission unit includes an optical signal output connector, and the optical path compensation unit includes a Dove prism rotatably installed between the optical signal input connector and the optical signal output connector; the Dove prism is connected to a rotation adjustment component, and the rotation speed ratio of the Dove prism to the optical signal output connector is 2:1; The A radio frequency signal transmission unit includes a radio frequency signal input connector and an A radio frequency signal transmission component. The radio frequency signal input connector and the A radio frequency signal transmission component are connected by an A radio frequency signal line. The B radio frequency signal transmission unit includes a radio frequency signal output connector and a B radio frequency signal transmission component. The radio frequency signal output connector and the B radio frequency signal transmission component are connected by a B radio frequency signal line. The A radio frequency signal transmission component and the B radio frequency signal transmission component are in contact and relatively rotate to transmit radio frequency signals; it also includes a housing, a fixed mounting seat, and a movable mounting seat. The fixed mounting seat is fixedly assembled at one end of the housing, and the movable mounting seat is rotatably installed on the fixed mounting seat through a bearing assembly. The B radio frequency signal transmission component is installed on the movable mounting seat, and the A radio frequency signal transmission component is installed on the fixed mounting seat; The Dove prism is installed in a hollow shaft. A mounting seat is arranged in the middle of the hollow shaft. The rotation adjustment component includes a C bevel gear rotatably assembled on the mounting seat. The two ends of the hollow shaft are respectively rotatably installed in an A pipe body and a B pipe body. An A bevel gear is arranged at the end of the A pipe body, and a B bevel gear is arranged at the end of the B pipe body. The A bevel gear and the B bevel gear are the same. The A bevel gear and the B bevel gear are respectively arranged on both outer sides of the C bevel gear and are meshed and assembled with the C bevel gear. The center lines of the A bevel gear and the B bevel gear are arranged parallel to the center line of the hollow shaft, and the center line of the C bevel gear is arranged perpendicular to the center line of the hollow shaft. The A pipe body is fixedly assembled on the stator part, and the B pipe body is assembled on the rotor part; Two C bevel gears are arranged at intervals along the circumferential direction of the hollow shaft; The A radio frequency signal transmission component is composed of brush blocks, and the B radio frequency signal transmission component is composed of a ring-shaped brush plate. The outer plate surfaces of the brush blocks and the ring-shaped brush plate are in contact and relatively rotate.

2. The slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals according to claim 1, characterized in that: The optical signal output connector and the radio frequency signal output connector are fixedly installed on the movable mounting seat. The stator part is fixedly assembled on the housing, the rotor part is rotatably assembled relative to the stator part, the radio frequency signal input connector is fixedly assembled on the housing, the optical signal input connector is fixedly assembled on the stator part, and the movable mounting seat is connected to the rotor part through a transmission part.

3. The slip ring capable of simultaneously transmitting radio frequency signals and multiple optical signals according to claim 2, characterized in that: The transmission member is a hollow shaft body. One end of the transmission member is assembled and connected with the movable mounting member and is arranged corresponding to the optical signal output connector. The middle part of the transmission member is inserted into the through hole in the middle of the fixed mounting seat in a hollow manner, and the other end of the transmission member is assembled and connected with the rotor part.

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