CN220605164U

CN220605164U - Slip ring device

Info

Publication number: CN220605164U
Application number: CN202322042812.XU
Authority: CN
Inventors: 王晓磊; 李�杰; 王俊杰; 杨文强; 杨新宇; 张兰庆; 康夜雨
Original assignee: Dezhou Power Plant of Huaneng International Power Co Ltd; Huaneng Shandong Power Generation Co Ltd
Current assignee: Dezhou Power Plant of Huaneng International Power Co Ltd; Huaneng Shandong Power Generation Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-03-15
Anticipated expiration: 2033-07-31
Also published as: DE202023105206U1

Abstract

The utility model belongs to the technical field of wind power generation, and particularly relates to a slip ring device, which comprises a rotor assembly and a stator assembly sleeved outside the rotor assembly, wherein a rolling assembly is arranged between the stator assembly and the rotor assembly; the stator assembly is fixedly arranged between the mounting plates, the rotor assembly is arranged between the mounting plates in a rolling way through a first bearing, and the rolling assembly is arranged between the two groups of mounting plates in a rolling way through a second bearing; the rolling assembly comprises a plurality of rolling conductive rings, and a plurality of groups of brush wires are arranged on the rolling conductive rings along the radial direction. The utility model can reduce the friction between the brush wires and the rotor, reduce the loss of the brush wires, prolong the maintenance period and save the time.

Description

Slip ring device

Technical Field

The utility model belongs to the technical field of wind power generation, and particularly relates to a slip ring device.

Background

In wind-driven generators, slip rings play a vital role as important component parts, and electric conduction between a stator and a rotor is realized by means of brushes in the slip rings, so that electric connection of signals such as a power supply, temperature feedback, a control bus and the like in a system between an executing mechanism and a control system is realized. The current-stage brush is in sliding contact with the rotor conducting ring, the contact area of the brush and the rotor is large, loss exists in long-time friction, powder generated by friction is accumulated in the slip ring to influence conductivity, signal transmission is influenced, and maintenance and cleaning and special lubricant smearing are required periodically.

Disclosure of Invention

Aiming at the technical problem that the electric conductivity is affected by the electric brush loss caused by friction between an electric brush and a rotor in the background art, the utility model provides a slip ring device which can reduce the friction between brush wires and the rotor, reduce the loss of the brush wires, prolong the maintenance period and save the time.

In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:

the slip ring device comprises a rotor assembly and a stator assembly sleeved outside the rotor assembly, wherein a rolling assembly is arranged between the stator assembly and the rotor assembly; the stator assembly is fixedly arranged between the mounting plates, the rotor assembly is arranged between the mounting plates in a rolling way through a first bearing, and the rolling assembly is arranged between the two groups of mounting plates in a rolling way through a second bearing; the rolling assembly comprises a plurality of rolling conductive rings, and a plurality of groups of brush wires are arranged on the rolling conductive rings along the radial direction.

Further, the rotor assembly comprises a rotor mounting shaft and a plurality of insulating rings arranged on the rotor mounting shaft, rotor conducting rings are arranged among the insulating rings, and the rotor conducting rings are aligned with the brush wires.

Further, the two ends of the rotor mounting shaft penetrate through the mounting plate, a first bearing is arranged on one side, away from the rotor assembly, of the mounting plate, and an inner ring of the first bearing is connected with the rotor mounting shaft.

Further, a groove is formed in one side, provided with the first bearing, of the mounting plate, the first bearing is located in the groove, a through hole is further formed in the groove, and one end of the rotor mounting shaft penetrates through the through hole and is connected with the first bearing.

Further, the rolling assembly comprises a rolling installation shaft and the rolling conductive ring installed on the rolling installation shaft, second bearings are arranged at two ends of the rolling installation shaft, and the second bearings are fixedly installed on the installation plate.

Further, the second bearing is fixedly arranged on one side, close to the rolling assembly, of the mounting plate; the brush filaments are aligned with and in contact with the rotor conductive ring.

Further, the stator assembly comprises a plurality of insulators, a plurality of stator conducting rings are arranged between the insulators, the insulators at two ends of the stator assembly are fixedly connected with the mounting plate, and the stator conducting rings are in contact with the brush wires.

Further, a housing is further installed outside the stator assembly, and the housing is fixedly connected with the mounting plate.

The utility model has the following advantages and beneficial effects:

the brush wires are used for replacing the original brushes, sliding friction between the brushes and the rotor is changed into rolling friction between the brushes and the rotor and between the brushes and the stator, friction area reduction loss can be reduced, the rolling assembly where the brushes are located rotates along with rotation of the rotor assembly, a plurality of brushes are alternately contacted with the rotor assembly and the stator assembly, friction is further reduced, friction loss of conductive parts is reduced, powder generated by friction inside the slip ring is further reduced, conductivity of the slip ring is further improved on the original basis, maintenance period is prolonged, and time of operators is saved.

Drawings

FIG. 1 is a front cross-sectional view of a slip ring apparatus provided by the present utility model;

FIG. 2 is a schematic cross-sectional view of a rolling conductive ring of a slip ring device according to the present utility model;

FIG. 3 is a schematic diagram of connection among a rotor conducting ring, a rolling conducting ring and a stator conducting ring of a slip ring device provided by the utility model through brush wires;

icon: 1-stator assembly, 101-insulator, 102-stator conducting ring, 2-rolling assembly, 201-brush wire, 202-rolling mounting shaft, 203-rolling conducting ring, 204-second bearing, 3-rotor assembly, 301-rotor mounting shaft, 302-insulating ring, 303-rotor conducting ring, 304-first bearing, 4-mounting plate, 5-housing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1, the slip ring device comprises a rotor assembly 3 and a stator assembly 1 sleeved outside the rotor assembly 3, wherein a rolling assembly 2 is arranged between the stator assembly 1 and the rotor assembly 3, and the stator assembly 1, the rotor assembly 3 and the rolling assembly 2 are in rolling contact to realize electric connection; the stator assembly 1 is fixedly arranged between the mounting plates 4, the rotor assembly 3 is arranged between the mounting plates 4 in a rolling way through a first bearing 304, the rolling assembly 2 is arranged between the mounting plates 4 in a rolling way through a second bearing 204, a plurality of assemblies can be firmly fixed through the mounting plates 4, a shell 5 is further arranged outside the stator assembly 1, the shell 5 is fixedly connected with the mounting plates 4, and due to the influence of an external air working environment, the shell 5 is required to have good waterproof, oil-releasing and dust-proof performances, and the shell 5 in the embodiment has an IP65 protection level, so that the damage of moisture, dust and internal cleaning lubricating oil in the external air can be effectively prevented; the rolling assembly 2 comprises a plurality of rolling conductive rings 203, a plurality of rows of brush wires 201 are arranged on the rolling conductive rings 203 along the radial direction, the contact area of the brush wires 201 can be reduced, friction is reduced, meanwhile, the brush wires 201 roll along with the rotation of a rotor, sliding friction is reduced, and the brush wires 201 electrically connect the rotor assembly 3 with the stator assembly 1 in the rolling process.

The rotor assembly 3 comprises a rotor mounting shaft 301 and a plurality of insulating rings 302 arranged on the rotor mounting shaft 301, rotor conducting rings 303 are arranged among the insulating rings 302, the rotor conducting rings 303 are aligned with the brush wires 201, and the rotor insulating rings 302 are in close connection with the conducting rings.

The two ends of the rotor mounting shaft 301 penetrate through the mounting plate 4, a first bearing 304 is arranged on one side, away from the rotor assembly 3, of the mounting plate 4, and an inner ring of the first bearing 304 is connected with the rotor mounting shaft 301. The mounting plate 4 is equipped with the recess in one side that is equipped with first bearing 304, first bearing 304 is located in the recess, still be equipped with the through-hole in the recess, rotor mounting shaft 301's one end pass the through-hole with first bearing 304 is connected. The caliber of the through hole is required to be larger than the diameter of the inner ring of the first bearing 304, so that the rotor mounting shaft 301 connected with the first bearing 304 can be suspended in the through hole, and friction between the rotor mounting shaft 301 and the through hole is reduced.

The rolling assembly 2 comprises a rolling installation shaft 202 and the rolling conductive ring 203 installed on the rolling installation shaft 202, wherein two ends of the rolling installation shaft 202 are provided with second bearings 204, and the second bearings 204 are fixedly installed on the installation plate 4. The mounting plate 4 is close to one side of the rolling assembly 2 and fixedly provided with the second bearing 204, the brush wires 201 are tightly attached to the rotor conductive ring 303, when the rotor assembly 3 rotates, the rolling assembly 2 is driven to rotate together, a plurality of brush wires 201 are alternately attached to the rotor conductive ring 303 along with rolling, uninterrupted contact is realized while rolling, the rolling mounting shaft 202 is made of non-conductive materials, and a structural diagram of the brush wires 201 and the rolling conductive ring 203 is shown in fig. 2.

The stator assembly 1 comprises stator conducting rings 102 and insulators 101 which are arranged in a crossed mode, and two ends of the stator assembly 1 are the insulators 101 and fixedly connected with the mounting plate 4.

The stator assembly 1 includes a plurality of insulators 101, a plurality of stator conductive rings 102 are arranged between the insulators 101, the insulators 101 at two ends of the stator assembly 1 are fixedly connected with the mounting plate 4, the stator conductive rings 102 are in contact with the brush wires 201, and a current path is formed among the rotor conductive rings 303, the brush wires 201, the rolling conductive rings 203 and the stator conductive rings 102, as shown in fig. 3.

The working principle of the utility model is as follows: through the rolling component 2, the rolling component 2 is driven to rotate along with the rotation of the rotor component 3, and brush wires 201 of the rolling component 2 are closely contacted with conductive rings of the rotor and the stator, so that the electrical connection between the rotor and the stator is realized in the rotation process of the rotor component 3, and the transmission of power and communication is realized; the sliding friction between the brush and the rotor is changed into rolling friction between the brush wires 201, the rotor assembly 3 and the stator assembly 1, more friction can be reduced, the brush wires 201 can be bent under force, and even if the rotor assembly 3 moves and shakes in the slip ring, sliding contact can be continuously maintained.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The slip ring device is characterized by comprising a rotor assembly (3) and a stator assembly (1) sleeved outside the rotor assembly (3), wherein a rolling assembly (2) is arranged between the stator assembly (1) and the rotor assembly (3);

the stator assembly (1) is fixedly arranged between the mounting plates (4), the rotor assembly (3) is arranged between the mounting plates (4) in a rolling way through a first bearing (304), and the rolling assembly (2) is arranged between the two groups of mounting plates (4) in a rolling way through a second bearing (204);

the rolling assembly (2) comprises a plurality of rolling conductive rings (203), and a plurality of groups of brush wires (201) are arranged on the rolling conductive rings (203) along the radial direction.

2. Slip ring device according to claim 1, characterized in that: the rotor assembly (3) comprises a rotor mounting shaft (301) and a plurality of insulating rings (302) arranged on the rotor mounting shaft (301), rotor conducting rings (303) are arranged between the insulating rings (302), and the rotor conducting rings (303) are aligned with the brush wires (201).

3. Slip ring device according to claim 2, characterized in that: the two ends of the rotor mounting shaft (301) penetrate through the mounting plate (4), a first bearing (304) is arranged on one side, away from the rotor assembly (3), of the mounting plate (4), and an inner ring of the first bearing (304) is connected with the rotor mounting shaft (301).

4. Slip ring device according to claim 3, characterized in that: one side of mounting panel (4) is equipped with first bearing (304) is equipped with the recess, first bearing (304) are located in the recess, still be equipped with the through-hole in the recess, the one end of rotor installation axle (301) pass the through-hole with first bearing (304) are connected.

5. Slip ring device according to claim 2, characterized in that: the rolling assembly (2) comprises a rolling installation shaft (202) and rolling conductive rings (203) installed on the rolling installation shaft (202), second bearings (204) are arranged at two ends of the rolling installation shaft (202), and the second bearings (204) are fixedly installed on the installation plate (4).

6. Slip ring device according to claim 5, characterized in that: the second bearing (204) is fixedly arranged on one side, close to the rolling assembly (2), of the mounting plate (4); the brush filaments (201) are aligned with and in contact with the rotor conductive ring (303).

7. Slip ring device according to claim 1, characterized in that: the stator assembly (1) comprises a plurality of insulators (101), a plurality of stator conducting rings (102) are arranged between the insulators (101), the insulators (101) at two ends of the stator assembly (1) are fixedly connected with the mounting plate (4), and the stator conducting rings (102) are in contact with the brush wires (201).

8. Slip ring device according to claim 1, characterized in that: and a shell (5) is further arranged outside the stator assembly (1), and the shell (5) is fixedly connected with the mounting plate (4).