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Mechanical and non-contact composite slip ring and its working method

A non-contact, composite technology, applied in the direction of connection, rotating current collector, current collector, etc., can solve the problems of immature technology, late start of non-contact slip ring, poor reliability of power transmission efficiency and overload capacity, etc., to achieve Solve the effect of mechanical wear

Inactive Publication Date: 2017-07-18
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, compared with traditional contact slip rings, non-contact slip rings started late, the technology is immature, the power transmission efficiency is restricted by loosely coupled transformers, and the reliability and overload capacity in some harsh environments are slightly inferior.

Method used

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  • Mechanical and non-contact composite slip ring and its working method
  • Mechanical and non-contact composite slip ring and its working method
  • Mechanical and non-contact composite slip ring and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] See attached figure 2 , 3 , Non-contact slip rings and mechanical slip rings are disc-shaped structures. The non-contact slip ring rotor and the mechanical slip ring rotor are fixed on the main drive shaft. The composite stator is located between the non-contact slip ring rotor and the mechanical slip ring rotor, and is installed on the main drive shaft through linear bearings. The composite stator is composed of two kinds of slip ring stators combined, and the matching brushes and collector rings are respectively installed on the mechanical slip ring rotor.

[0029] Axial feeding device The axial feeding device is composed of a lead screw nut installed in a compound stator, a screw rod matched with the lead screw nut, and a motor connected with the screw rod. The motor provides rotational power to the threaded rod to push and pull the compound stator to move between the non-contact slip ring rotor and the mechanical slip ring rotor.

Embodiment 2

[0031] See attached Figure 4 , 5 , Non-contact slip rings and mechanical slip rings are disc-shaped structures. The composite rotor is fixed on the main power shaft. The non-contact slip ring stator and the mechanical slip ring rotor are located on both sides of the composite rotor, both of which are installed on the main drive shaft through linear bearings and fixed to each other to form a stator assembly. The composite rotor is composed of two kinds of slip ring rotors, and the matching collector ring and brush are respectively installed on the mechanical slip ring stator;

[0032]Axial feeding device The axial feeding device is composed of a lead screw nut installed in the stator assembly, a screw rod matched with the lead screw nut, and a motor connected with the screw rod. The auxiliary motor provides rotational power for the threaded rod to push and pull the stator assembly to cooperate with the non-contact slip ring rotor and the mechanical slip ring rotor respectiv...

Embodiment 3

[0034] See attached Image 6 , 7 , The non-contact slip ring rotor is a cylindrical structure, the mechanical slip ring is a disc structure, and the composite stator is a pot structure. The non-contact slip ring rotor and the mechanical slip ring rotor are fixed on the main drive shaft. The composite stator is located between the non-contact slip ring rotor and the mechanical slip ring rotor, and is installed on the main drive shaft through linear bearings. The composite stator is composed of two kinds of slip ring stators combined, and the matching brushes and collector rings are respectively installed on the mechanical slip ring rotor.

[0035] The opening of the composite stator pot-shaped structure faces the non-contact slip ring rotor, and the cylindrical inner wall of the composite stator pot-shaped structure cooperates with the cylindrical outer wall of the non-contact slip ring rotor; the end face of the composite stator pot-shaped structure and The mechanical slip ...

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Abstract

The invention relates to a mechanical / non-contact compound slip ring and a working mode, and belongs to the fields of electric energy transmission and electric energy conversion. During normal operation of a system, a stator moves towards the side of a non-contact slip ring rotor, the optimal working clearance between the stator and the non-contact slip ring rotor is maintained, a way is opened with a mechanical slip ring rotor, and at that time, the electric energy transmission is realized through a non-contact slip ring; when the non-contact slip ring breaks down, an auxiliary power unit applies force for the stator, so that the stator breaks away from the non-contact slip ring rotor and moves towards the side of a mechanical slip ring rotor, an electric brush of the compound stator is in contact with a collecting ring of the mechanical slip ring rotor, and at that time, the electric energy transmission is realized through a mechanical slip ring; when the non-contact slip ring goes back to normal, the stator is then switched back to the side of the non-contact slip ring in the above manner. The mechanical / non-contact compound slip ring can utilize the advantages of the non-contact slip ring to solve the problem such as mechanical wear existing in a traditional contact slip ring, and can also be switched to the mechanical slip ring when the non-contact slip ring breaks down, so that reliable operation of the system is guaranteed. The mechanical / non-contact compound slip ring is suitable for the electric energy transmission of most rotary electronic equipment.

Description

technical field [0001] The invention relates to a mechanical and non-contact composite slip ring and its working method, belonging to the field of electric energy transmission and electric energy transformation. Background technique [0002] Rotating electronic devices are widely used in aerospace applications, such as rotating radars, inertial platforms, tethered platforms, gyro instruments, satellite power supplies, and aeronautical generator excitation systems. How to ensure efficient and reliable transmission of electric energy from the fixed side to the rotating side, and realize accurate and timely information interaction between the fixed side and the rotating side, has become the key to ensuring the realization of the functions of rotating electronic devices. [0003] The current rotating electronic equipment mostly uses a sliding electrical contact device matched with a conductive ring and a brush, also known as a conductive slip ring, for power and signal transmiss...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/14H01R39/64H01R43/00
CPCH01F38/14H01R39/64H01R43/00
Inventor 陈乾宏姜立信黄君涛李圆圆
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS