CN109411976B

CN109411976B - Slip ring device

Info

Publication number: CN109411976B
Application number: CN201811288642.0A
Authority: CN
Inventors: 张宽
Original assignee: Sichuan Jingtong Electrical Equipment Co ltd
Current assignee: Sichuan Jingtong Electrical Equipment Co ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-05-19
Anticipated expiration: 2038-10-31
Also published as: CN109411976A

Abstract

The invention discloses a slip ring device which comprises a slip ring body, wherein the slip ring body comprises a brush holder and a conductive shaft, the conductive shaft penetrates through the brush holder and is rotatably connected with the brush holder, a speed measuring coded disc is arranged on the conductive shaft and is positioned in the brush holder, a slip ring sensor matched with the speed measuring coded disc is arranged on the inner wall of one side of the brush holder, close to the speed measuring coded disc, and a circuit board assembly is arranged on the outer side of the brush holder. According to the slip ring device, the slip ring sensor is arranged in the slip ring body, so that when the slip ring device works in environment change or severe environment, the slip ring sensor can be prevented from being influenced and interfered by various factors in external environment, the service performance of the slip ring sensor is effectively improved, and the service life of the slip ring sensor is effectively prolonged; meanwhile, the slip ring sensor and the speed measuring coded disc are arranged together for matching use, and the slip ring sensor and the speed measuring coded disc move relatively, so that the accuracy of the slip ring sensor is further improved.

Description

Slip ring device

Technical Field

The invention belongs to the technical field of electromechanical equipment, and particularly relates to a slip ring device.

Background

The slip ring, also called as a rotary electrical interface or an electrical rotary joint, is an electrical component responsible for communicating with the rotating body and transmitting energy and signals. The slip rings are classified into electrical slip rings, fluid slip rings and optical slip rings according to transmission media, and can also be commonly referred to as "rotary communication" or "rotary communication". The slip ring is usually installed at the rotation center of the equipment and mainly consists of two parts, namely a rotating part and a static part. Are commonly used in any electrical system that requires unlimited continuous rotation to transmit power and data signals from a fixed structure to a rotating structure.

In prior art, the sliding ring sensor is installed in the outside of sliding ring body, because there is not protection device, changes or the environment is abominable (like the great place of sand blown by the wind) place in the environment, and the sliding ring sensor receives the damage easily, and then makes the sliding ring sensor break down, has seriously influenced sliding ring sensor's performance and life. Therefore, it is necessary to design a slip ring device capable of protecting the slip ring sensor.

Disclosure of Invention

In view of the above-mentioned deficiencies in the prior art, the present invention provides a slip ring device, which is used for solving the problems existing in the prior art: the slip ring sensor is arranged outside the slip ring body, and the slip ring sensor cannot be protected.

In order to achieve the above purpose, the solution adopted by the invention is as follows: the sliding ring device comprises a sliding ring body, wherein the sliding ring body comprises a brush holder and a conductive shaft, the conductive shaft penetrates through the brush holder to be connected with the brush holder in a rotating mode, a speed measuring coded disc is arranged on the conductive shaft and located inside the brush holder, a sliding ring sensor matched with the speed measuring coded disc is arranged on the inner wall, on one side of the speed measuring coded disc, of the brush holder, and a circuit board assembly is arranged on the outer side of the brush holder.

Furthermore, a bearing is arranged at the joint of the conductive shaft and the brush holder, and the bearing is a radial ball bearing.

Furthermore, an elastic retainer ring is arranged at the contact position of the conductive shaft and the bearing.

Furthermore, the number of the slip ring sensors is a plurality, and the slip ring sensors are uniformly arranged along the circumferential direction of the speed measuring coded disc.

Further, the slip ring sensor is in threaded connection with the brush holder.

Furthermore, a shell is arranged outside the brush holder, and an upper cover plate and a lower cover plate are respectively arranged on the upper side and the lower side of the shell.

Furthermore, the joints of the upper cover plate and the lower cover plate with the shell are provided with cover plate sealing gaskets.

Furthermore, the circuit board assembly comprises a circuit board, a terminal is arranged on one side, away from the conductive shaft, of the circuit board, a signal positioning plate is arranged on one side, close to the conductive shaft, of the circuit board, a fiber bundle brush is arranged on the circuit board, and the fiber bundle brush penetrates through the signal positioning plate to be in contact with the conductive shaft.

Further, a connecting part is arranged on the shell.

The invention has the beneficial effects that: according to the slip ring device, the slip ring sensor is arranged in the slip ring body, so that when the slip ring device works in environment change or severe environment, the slip ring sensor can be prevented from being influenced and interfered by various factors in external environment, the service performance of the slip ring sensor is effectively improved, and the service life of the slip ring sensor is effectively prolonged; meanwhile, the slip ring sensor and the speed measuring coded disc are arranged together for matching use, and the slip ring sensor and the speed measuring coded disc move relatively, so that the accuracy of the slip ring sensor is further improved.

Drawings

FIG. 1 is a schematic view of the internal structure of a slip ring assembly according to the present invention;

FIG. 2 is a schematic structural view of a slip ring assembly according to the present invention;

FIG. 3 is a schematic structural diagram of a circuit board assembly according to the present invention;

in the drawings: 1-brush holder, 2-conductive shaft, 3-speed measuring code disc, 4-slip ring sensor, 5-circuit board assembly, 501-circuit board, 502-terminal, 503-signal positioning plate, 504-fiber bundle brush, 6-bearing, 7-shell, 701-upper cover plate, 702-lower cover plate and 8-connecting part.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

in order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention are described clearly and completely below, and it is obvious that the described embodiments are some, not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the invention provides a slip ring device, which comprises a slip ring body, wherein the slip ring body comprises a brush holder 1 and a conductive shaft 2, the conductive shaft 2 penetrates through the brush holder 1 to be rotatably connected with the brush holder 1, a speed measuring coded disc 3 is arranged on the conductive shaft 2, the speed measuring coded disc 3 is positioned in the brush holder 1, a slip ring sensor 4 matched with the speed measuring coded disc 3 for use is arranged on the inner wall of one side, close to the speed measuring coded disc 3, of the brush holder 1, the slip ring sensor 4 is arranged in the brush holder 1 to play a role in protecting the slip ring sensor 4, the slip ring sensor 4 is matched with the speed measuring coded disc 3 for use, the service performance of the slip ring sensor is improved, and a circuit board assembly 5.

Referring to fig. 1 and 2, in a further preferred embodiment, a bearing 6 is disposed at a joint of the conductive shaft 2 and the brush holder 1, and the bearing 6 is a radial ball bearing, so as to reduce friction between the conductive shaft 2 and the brush holder 1 and improve usability of the conductive shaft 2.

In a further preferred embodiment, a circlip is arranged at the contact position of the electric conduction shaft 2 and the bearing 6, and the circlip plays a role of protecting the electric conduction shaft 2.

Referring to fig. 1, further, in a preferred embodiment, the number of the slip ring sensors 4 is several, and several slip ring sensors 4 are uniformly arranged along the circumferential direction of the speed measuring code wheel 3.

In a further preferred embodiment, the slip ring sensor 4 is connected with the brush holder 1 in a threaded manner, so that the slip ring sensor can be mounted conveniently.

Referring to fig. 2, in a further preferred embodiment, a housing 7 is arranged outside the brush holder 1, an upper cover plate 701 and a lower cover plate 702 are respectively arranged on the upper side and the lower side of the housing 7, the housing 7 can protect the slip ring body, and the cover plate is arranged on the housing 7, so that the slip ring body can be conveniently overhauled.

Referring to fig. 2, in a further preferred embodiment, cover plate gaskets are disposed at the joints between the upper cover plate 701 and the lower cover plate 702 and the housing 7, so as to improve the sealing performance of the housing 7.

Referring to fig. 3, in a further preferred embodiment, the circuit board assembly 5 includes a circuit board 501, a terminal 502 is disposed on a side of the circuit board 501 away from the conductive shaft 2, a signal positioning plate 503 is disposed on a side of the circuit board 501 close to the conductive shaft 2, a fiber bundle brush 504 is disposed on the circuit board 501, and the fiber bundle brush 504 passes through the signal positioning plate 503 and contacts with the conductive shaft 2.

With reference to fig. 2, in a further preferred embodiment, the housing 7 is provided with a connection portion 8 for facilitating the installation of the slip ring body.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A slip ring device comprises a slip ring body and is characterized in that: the slip ring body comprises a brush holder (1) and a conductive shaft (2), the conductive shaft (2) penetrates the brush holder (1) to be connected with the brush holder (1) in a rotating mode, a speed measuring coded disc (3) is arranged on the conductive shaft (2), the speed measuring coded disc (3) is located inside the brush holder (1), the brush holder (1) is close to a slip ring sensor (4) which is arranged on the inner wall of one side of the speed measuring coded disc (3) and used in a matched mode with the speed measuring coded disc (3), and a circuit board assembly (5) is arranged on the outer side of the brush holder (1).

2. The slip ring assembly of claim 1, wherein: the connection part of the conductive shaft (2) and the brush holder (1) is provided with a bearing (6), and the bearing (6) is a radial ball bearing.

3. The slip ring assembly of claim 2, wherein: and an elastic check ring is arranged at the contact position of the conductive shaft (2) and the bearing (6).

4. The slip ring assembly of claim 1, wherein: the number of the slip ring sensors (4) is a plurality, and the slip ring sensors (4) are uniformly arranged along the circumferential direction of the speed measuring coded disc (3).

5. The slip ring assembly of claim 1, wherein: the slip ring sensor (4) is in threaded connection with the brush holder (1).

6. The slip ring assembly of claim 1, wherein: the brush holder (1) is externally provided with a shell (7), and the upper side and the lower side of the shell (7) are respectively provided with an upper cover plate (701) and a lower cover plate (702).

7. The slip ring assembly of claim 6, wherein: and cover plate sealing gaskets are arranged at the joints of the upper cover plate (701) and the lower cover plate (702) with the shell (7).

8. The slip ring assembly of claim 1, wherein: the circuit board assembly (5) comprises a circuit board (501), one side, away from the conductive shaft (2), of the circuit board (501) is provided with a terminal (502), one side, close to the conductive shaft (2), of the circuit board (501) is provided with a signal positioning plate (503), a fiber bundle brush (504) is arranged on the circuit board (501), and the fiber bundle brush (504) penetrates through the signal positioning plate (503) to be in contact with the conductive shaft (2).

9. The slip ring assembly of claim 6, wherein: the shell (7) is provided with a connecting part (8).