Conductive slip ring structure

Abstract

The utility model relates to the technical field of conductive slip rings, and discloses a conductive slip ring structure, which comprises a shell and an end cover positioned at one end of the shell, a rotor is jointly mounted in the shell and the end cover, and the rotor comprises a rotating shaft positioned at the central positions of the inner sides of the shell and the end cover. A plurality of metal rings are installed on the outer side of the rotating shaft in the axial direction, one end of the rotating shaft is connected with a rotor connecting assembly, and a junction box assembly is installed on the outer side of the shell. According to the utility model, the U-shaped metal plate and the circuit board assembly are fixed together through the second bolt, and then the carbon brush is installed on the U-shaped metal plate, so that the U-shaped metal plate can be directly pulled to deform, and pressure adjustment between the carbon brush and the metal ring is realized; the transmission stability of signals or electric energy is realized; the circuit board assembly is fixed on the aluminum base through the first bolt 1, so that the U-shaped metal plate, the circuit board assembly or the carbon brush is convenient to replace, the maintenance is convenient, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive slip rings, in particular to a conductive slip ring structure. Background Art

[0002] The main function of the conductive slip ring is to solve the problem of wire winding during the 360° rotation of the equipment, and it plays a vital role in meeting the needs of dynamic power supply and data signal transmission of various types of equipment, especially in the use of wind power generation pitch slip rings, its role is more prominent. The conductive slip ring plays a vital role in the safe operation of the unit pitch system, and has a very important impact on the communication and power supply of the pitch system. When the unit is working, if there is no conductive slip ring, the communication and power supply of the wind turbine pitch system will not be realized. Therefore, the conductive slip ring can ensure that the communication and power supply of the wind turbine pitch system work stably during rotation.

[0003] A Chinese patent discloses a conductive slip ring (authorization announcement number CN202231280U). The patented technology includes a stator, a rotor, a brush wire, a rotor metal ring, a stator circuit board and a stator pin, and a rotor circuit board and a rotor pin. The brush wire is arranged on the stator, the stator circuit board is arranged on the stator, the stator pin is arranged at the root of the stator circuit board, and the brush wire and the stator pin are connected correspondingly through the wiring on the stator circuit board; the rotor metal ring is arranged on the rotor, the rotor circuit board is arranged on the rotor, the rotor pin is arranged at the root of the rotor circuit board, and the rotor metal ring and the rotor pin are connected correspondingly through the wiring on the rotor circuit board. The brush wire and the rotor metal ring are slidably connected. Thus, the signal is connected from the stator pin to the rotor pin. Its structural design can not only ensure the accuracy of its signal transmission, but also facilitate installation and shorten the production cycle, but it has the following shortcomings: 1. It is impossible to adjust the pressure of the brush wire on the metal ring, which will affect the transmission stability of the signal or electric energy in the long run. 2. The brush wire is not convenient to replace, resulting in high maintenance costs. Utility Model Content

[0004] The purpose of the utility model is to provide a conductive slip ring structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A conductive slip ring structure comprises a shell and an end cover at one end of the shell, wherein a rotor is installed inside the shell and the end cover, wherein the rotor comprises a rotating shaft located at the center of the inner side of the shell and the end cover, wherein a plurality of metal rings are installed along the axial direction on the outer side of the rotating shaft, and a rotor connecting assembly is connected to one end of the rotating shaft, an aviation plug-in is installed on the inner side of the rotor connecting assembly, and a junction box assembly is installed on the outer side of the shell; an insulating sleeve is arranged between the rotating shaft and the metal ring, and a stator is rotatably connected to the outer side of the metal ring, wherein the stator comprises a U-shaped metal plate, a circuit board assembly is arranged on the outer side of the U-shaped metal plate, and a group of carbon brushes are arranged on the inner side of the U-shaped metal plate, a terminal is connected to the circuit board assembly, and the carbon brush is slidably connected to the metal ring.

[0007] As a further solution of the utility model: an insulating layer is provided between every two adjacent metal rings.

[0008] As a further solution of the utility model: the U-shaped metal plate and the circuit board assembly are fixedly connected by a second bolt, and both ends of the circuit board assembly are fixedly connected to an aluminum base by a first bolt, and the aluminum base is fixed to the inner wall of the shell.

[0009] As a further solution of the present invention: a flange is installed at one end of the rotor connecting assembly, the rotating shaft and the end cover are rotatably connected through a first bearing, one end of the rotor connecting assembly is embedded and installed on the inner side of the end cover, and the rotor connecting assembly and the end cover are rotatably connected through a second bearing.

[0010] As a further solution of the utility model: the interior of the junction box assembly is connected with a hub, one end of which is connected to a wiring terminal, one end of the aviation plug-in is connected with a soft wire, and the soft wire is connected to a metal ring.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model fixes the U-shaped metal plate and the circuit board assembly together by the second bolt, and then installs the carbon brush on the U-shaped metal plate, so that the U-shaped metal plate can be directly moved to deform the U-shaped metal plate, thereby realizing pressure adjustment between the carbon brush and the metal ring; realizing the transmission stability of signals or electric energy; and fixing the circuit board assembly on the aluminum base by the first bolt 1, thereby facilitating the replacement of the U-shaped metal plate, the circuit board assembly or the carbon brush, and achieving convenient maintenance and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of a main view of a conductive slip ring structure;

[0014] Figure 2 It is a left view schematic diagram of a conductive slip ring structure;

[0015] Figure 3 A partial schematic diagram of a conductive slip ring structure.

[0016] In the figure: 1. Insulating sleeve; 2. Circuit board assembly; 3. Housing; 4. Rotor connection assembly; 5. U-shaped metal plate; 6. Terminal block; 7. Carbon brush; 8. Rotating shaft; 9. Metal ring; 10. Aviation plug-in; 11. Junction box assembly; 12. First bearing; 13. Second bearing; 14. Aluminum base; 15. First bolt; 16. Second bolt; 17. Flange; 18. End cover. DETAILED DESCRIPTION

[0017] See also Figures 1 to 3 In the embodiment of the utility model, a conductive slip ring structure includes a housing 3 and an end cover 18 located at one end of the housing 3. A rotor is installed inside the housing 3 and the end cover 18. The rotor includes a rotating shaft 8 located at the center of the inner side of the housing 3 and the end cover 18. A plurality of metal rings 9 are installed along the axial direction on the outer side of the rotating shaft 8. A rotor connecting component 4 is connected to one end of the rotating shaft 8. An aviation plug-in 10 is installed on the inner side of the rotor connecting component 4. A junction box assembly 11 is installed on the outer side of the housing 3. A connecting rod 11 is installed between the rotating shaft 8 and the metal ring 9. An insulating sleeve 1 is provided, through which insulation is maintained between the rotating shaft 8 and the metal ring 9; a stator is rotatably connected to the outer side of the metal ring 9, and the stator includes a U-shaped metal plate 5, a circuit board assembly 2 is provided on the outer side of the U-shaped metal plate 5, and a group of carbon brushes 7 are provided on the inner side of the U-shaped metal plate 5, a wiring terminal 6 is connected to the circuit board assembly 2, and the carbon brush 7 is slidably connected to the metal ring 9, so that when the rotating shaft 8, the insulating sleeve 1 and the metal ring 9 rotate together, the carbon brush 7 is always connected to the metal ring 9, so as to achieve the purpose of always conducting electricity.

[0018] Preferably, an insulating layer is provided between every two adjacent metal rings 9 so that any two metal rings 9 are insulated to prevent a short circuit.

[0019] Preferably, the U-shaped metal plate 5 is fixedly connected to the circuit board assembly 2 by a second bolt 16, and both ends of the circuit board assembly 2 are fixedly connected to an aluminum base 14 by a first bolt 15, and the aluminum base 14 is fixed to the inner wall of the outer shell 3, so that the circuit board assembly 2, the U-shaped metal plate 5, the terminal 6 and the carbon brush 7 remain stable.

[0020] Preferably, a flange 17 is installed at one end of the rotor connecting component 4, and is connected to the external main component through the flange 17; the rotating shaft 8 and the end cover 18 are rotatably connected through the first bearing 12, one end of the rotor connecting component 4 is embedded and installed on the inner side of the end cover 18, and the rotor connecting component 4 and the end cover 18 are rotatably connected through the second bearing 13. Therefore, when the external main component rotates, the flange 17, the carbon brush 7, the rotating shaft 8, the insulating sleeve 1 and the metal ring 9 are driven to rotate together; and during the rotation process, the metal ring 9 is always in a conductive state with the carbon brush 7, thereby achieving the purpose of transmitting signals.

[0021] Preferably, the interior of the junction box assembly 11 is connected with a hub, one end of which is connected to the terminal 6, one end of the aviation plug-in 10 is connected with a soft wire, and the soft wire is connected to the metal ring 9, thereby forming a passage between the junction box assembly 11, the terminal 6, the circuit board assembly 2, the U-shaped metal plate 5, the carbon brush 7, the metal ring 9 and the aviation plug-in 10.

[0022] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A conductive slip ring structure, comprising a housing (3) and an end cover (18) located at one end of the housing (3), wherein a rotor is installed inside the housing (3) and the end cover (18), characterized in that: The rotor comprises a rotating shaft (8) located at the center position of the inner side of the housing (3) and the end cover (18); a plurality of metal rings (9) are axially mounted on the outer side of the rotating shaft (8); a rotor connecting assembly (4) is connected to one end of the rotating shaft (8); an aviation plug-in (10) is mounted on the inner side of the rotor connecting assembly (4); and a terminal box assembly (11) is mounted on the outer side of the housing (3); an insulating sleeve (1) is arranged between the rotating shaft (8) and the metal ring (9); a stator is rotatably connected to the outer side of the metal ring (9); the stator comprises a U-shaped metal plate (5); a circuit board assembly (2) is arranged on the outer side of the U-shaped metal plate (5); and a group of carbon brushes (7) are arranged on the inner side of the U-shaped metal plate (5); a terminal (6) is connected to the circuit board assembly (2); and the carbon brush (7) is slidably connected to the metal ring (9).

2. A conductive slip ring structure according to claim 1, characterized in that: An insulating layer is provided between every two adjacent metal rings (9).

3. A conductive slip ring structure according to claim 1, characterized in that: The U-shaped metal plate (5) and the circuit board assembly (2) are fixedly connected via a second bolt (16); both ends of the circuit board assembly (2) are fixedly connected to an aluminum base (14) via a first bolt (15); and the aluminum base (14) is fixed to the inner side wall of the housing (3).

4. A conductive slip ring structure according to claim 1, characterized in that: A flange (17) is mounted on one end of the rotor connection assembly (4); the rotating shaft (8) and the end cover (18) are rotatably connected via a first bearing (12); one end of the rotor connection assembly (4) is embedded and mounted on the inner side of the end cover (18); and the rotor connection assembly (4) and the end cover (18) are rotatably connected via a second bearing (13).

5. The conductive slip ring structure according to claim 1, characterized in that: The junction box assembly (11) is internally connected with a wiring hub, one end of which is connected to a wiring terminal (6), and one end of the aviation plug-in unit (10) is connected with a soft wire, which is connected to a metal ring (9).

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