CN216648814U

CN216648814U - Double-fed type cable-twisting slip ring rotor conducting ring structure and rotor mechanism

Info

Publication number: CN216648814U
Application number: CN202123313635.1U
Authority: CN
Inventors: 王天子; 钱燕
Original assignee: Shanghai Moteng Carbon Co ltd
Current assignee: Shanghai Moteng Carbon Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-05-31
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a double-fed twisted cable slip ring rotor conducting ring structure, which comprises: a ring body; the connecting assemblies are distributed around the central axis of the ring body in an annular array, and the connecting assemblies are positioned on the inner wall of the ring body; the grooves are continuously arranged along the circumferential direction of the ring body and are obliquely arranged on the periphery of the ring body; the periphery of the ring body and the groove form a contact surface, and the contact surface is in contact with the carbon brush. In the embodiment of the utility model, the groove is arranged on the periphery of the ring body, and the groove is obliquely arranged on the periphery of the ring body. When the carbon brush contacts with the upper periphery of the ring body, namely the carbon brush contacts with the contact surface, the falling carbon powder on the carbon brush falls through the groove, and the carbon powder is prevented from being accumulated on the surface of the ring body when the carbon brush contacts with the contact surface. Solves the problem of easy accumulation of carbon powder in the prior art. The requirements of the conductive ring in practical operation are met.

Description

Double-fed type cable-twisting slip ring rotor conducting ring structure and rotor mechanism

Technical Field

The utility model relates to the technical field of motors, in particular to a double-fed twisted cable slip ring rotor conducting ring structure and a rotor mechanism.

Background

With the continuous development of wind power generation systems in China, the wind power industry has higher requirements on the reliability and the power generation efficiency of a wind turbine generator, and in order to solve the problem that a power cable is seriously abraded by twisting the yaw guide force of a cabin, a cable twisting slip ring is gradually favored by users. In actual operation, a slip ring is generally used to avoid strain on the lead during rotation. Collector rings are also called conducting rings, slip rings, collector rings, etc. It can be used in any electromechanical system that requires continuous rotation while transmitting power and signals from a fixed position to a rotating position.

In the prior art, as the slip ring assembly and the wind generating set of the chinese patent invention (CN109737018A) and the yawing slip ring rotor structure of (CN111162642A), a rotor structure of a yawing slip ring is disclosed, wherein a central tube is fixed between a top plate and a bottom plate of the slip ring, the slip ring rotor rotates relative to the central tube, the slip ring is positioned by an upper large bearing and a lower large bearing or positioned by a large bearing below three small bearings, and a communication cable through hole is arranged in the central tube.

In the prior art, the outer wall of the conductive ring is in contact with the carbon brush. Carbon powder on the carbon brush is easy to hang and accumulate in the contact process and is not convenient to fall off, so that the operation of the conducting ring is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defect that carbon powder is easy to accumulate in the prior art, and provides a double-fed twisted cable slip ring rotor conducting ring structure.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a doubly-fed twisted cable slip ring rotor conducting ring structure, comprising: a ring body; the connecting assemblies are distributed in an annular array around the central axis of the ring body and are positioned on the inner wall of the ring body; the groove is continuously arranged along the circumferential direction of the ring body, and is obliquely arranged on the periphery of the ring body; the periphery of the ring body and the groove form a contact surface, and the contact surface is in contact with the carbon brush.

Optionally, the groove is configured as a corner structure.

Optionally, the number of the grooves is multiple.

Optionally, the contact surface is made of hard silver plating.

Optionally, the connection assembly includes: the connecting pieces are distributed in an annular array around the central axis of the ring body and are connected with the inner wall of the ring body; the first connecting holes are distributed in an annular array around the central axis of the ring body and are positioned on the connecting pieces; the second connecting holes are distributed in an annular array around the central axis of the ring body and are connected with the inner wall of the ring body; the plurality of groups of third connecting holes are distributed along the inner wall of the ring body and are positioned on the connecting piece; the connecting piece is in a shape like a Chinese character 'pin', the first connecting hole is close to the central axis of the ring body, and the third connecting hole is close to the inner wall of the ring body.

Optionally, the number of the first connecting holes is 3, the number of the second connecting holes is 4, and the number of the third connecting holes is 6; the second connecting hole is located on the connecting piece, and the second connecting hole and the third connecting hole are arranged in the same hole.

A rotor mechanism based on a double-fed twisted cable slip ring rotor conducting ring structure adopts the double-fed twisted cable slip ring rotor conducting ring structure.

The utility model has the beneficial effects that:

in the embodiment of the utility model, the groove is arranged on the periphery of the ring body, and the groove is obliquely arranged on the periphery of the ring body. When the carbon brush contacts with the upper periphery of the ring body, namely the carbon brush contacts with the contact surface, the falling carbon powder on the carbon brush falls through the groove, and the carbon powder is prevented from being accumulated on the surface of the ring body when the carbon brush contacts with the contact surface. Solves the problem of easy accumulation of carbon powder in the prior art. The requirements of the conductive ring in practical operation are met.

Drawings

Fig. 1 is a schematic plan view (in a top view) of an overall structure of a double-fed twisted cable slip ring rotor conducting ring structure according to an embodiment of the present invention;

fig. 2 is a schematic plan view of a groove structure of a doubly-fed twisted cable slip ring rotor conducting ring structure according to a first embodiment of the present invention.

The symbols in the figures are as follows:

1. a ring body;

11. a first connection hole; 12. a second connection hole; 13. connecting sheets; 131. a third connection hole; 14. a trench; 15 contact surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Example one

Referring to fig. 1-2, the present invention provides a double-fed twisted cable slip ring rotor conducting ring structure, which is provided in plurality in practical application. The conducting rings are coaxially arranged, and every two conducting rings which are close to each other are coaxially arranged in a staggered mode. Namely, one of the conductive rings rotates around the coaxial position for a certain angle and is arranged in a staggered way, and the position direction of the other conductive ring is unchanged. In this embodiment, the rotation angles of the conductive rings are consistent. I.e. the conducting rings with unchanged directions are parallel to each other. The conducting rings after rotating for a certain angle are also parallel to each other.

Specifically, the conductive ring structure includes: ring body 1, groove 14 and connecting assembly. The grooves 14 are arranged along the circumference of the ring body 1, i.e. the grooves 14 are located on the outer circumference of the ring body 1. And the groove 14 is arranged obliquely, that is, the groove 14 is an inclined groove. The connecting assembly is arranged inside the ring body 1, and the connecting assembly is distributed in an annular array around the central axis of the ring body 1. The outer circumference of the ring body 1, where the groove 14 is not provided, forms a contact surface 15, which contact surface 15 is intended to be in contact with a carbon brush in practice. In this embodiment, preferably, the groove 14 is a corner structure, so that when the carbon brush contacts the contact surface 15, the carbon powder on the contact surface 15 falls through the groove 14, and the possibility of carbon powder accumulation is reduced. In this embodiment, the number of the grooves 14 may be set according to the rotation speed of the rotor, and multiple sets may be provided to facilitate the falling of the toner.

In one embodiment, to ensure the working effect of the ring body 1. The contact surface 15 adopts a hard silver plating mode, so that the surface smoothness is effectively improved, and the pull ring risk is reduced. Thereby ensuring the effect of the contact surface 15 being in contact with the carbon brush.

In this embodiment, the connection assembly includes: a connecting piece 13 and a second connecting hole 12. The connecting pieces 13 are distributed in the ring body 1 around the central axis of the ring body 1 in an annular array mode, and the connecting pieces 13 are distributed along the inner wall of the ring body 1. The second connecting holes 12 are distributed in an annular array around the central axis of the ring body 1, and the second connecting holes 12 are distributed along the inner wall of the ring body 1. Wherein, a first connecting hole 11 and a second connecting hole 12 are arranged on the connecting sheet 13. The first connecting holes 11 are distributed in an annular array around the central axis of the ring body 1. The third connection hole 131 is formed along the inner wall of the ring body 1. The first connecting hole 11 on the connecting piece 13 is close to the central axis of the ring body 1, and the second connecting hole 12 on the connecting piece 13 is close to the inner wall of the ring body 1. Namely, the first connection hole 11 and the third connection hole 131 are layered on the connection piece 13. In this embodiment, the connecting piece 13 is in a delta shape.

In one embodiment, the number of the first connection holes 11 is 3, the number of the second connection holes 12 is 4, and the number of the third connection holes 131 is 6. One of the second connection holes 12 is located on the connection sheet 13, and the second connection hole 12 and one of the third connection holes 131 are arranged in the same hole. That is, in this embodiment, one third connection hole 131 is overlapped with one second connection hole 12 to form 12 holes. The two conducting rings are arranged in a vertically staggered mode, namely one conducting ring rotates around the central axis of the ring body 1 by a certain angle, and the other conducting ring is unchanged, so that 24 conducting rings can be connected through the two conducting rings arranged in the mode. The installation requirement of 24 wiring in a rotor mechanism of a double-fed twisted cable slip ring rotor conducting ring structure is met. In this embodiment, the first connection hole 11 is a fixing hole of the conductive ring. The second connecting hole 12 is a conducting rod fixing hole position. The third connecting hole 131 is a fixing hole for other phase conducting rods. The requirement of 24 connecting wires is met.

Example two

In practical applications, the number of the conductive ring structures is multiple. The conducting rings are coaxially arranged, and every two conducting rings which are close to each other are coaxially arranged in a staggered mode. Namely, one of the conductive rings rotates around the coaxial position for a certain angle and is arranged in a staggered way, and the position direction of the other conductive ring is unchanged. In this embodiment, the rotation angles of the conductive rings are consistent. I.e. the conducting rings with unchanged directions are parallel to each other. The conducting rings after rotating a certain angle are also parallel to each other. The number of conducting rings in this embodiment is set according to the actual installation requirement.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A doubly-fed cable-twisted slip ring rotor conducting ring structure is characterized by comprising:

a ring body;

the connecting assemblies are distributed in an annular array around the central axis of the ring body and are positioned on the inner wall of the ring body;

the groove is continuously arranged along the circumferential direction of the ring body, and is obliquely arranged on the periphery of the ring body;

the periphery of the ring body and the groove form a contact surface, and the contact surface is in contact with the carbon brush.

2. The structure of a double-fed twisted cable slip ring rotor conducting ring as claimed in claim 1, wherein the grooves are arranged in a corner-of-repose configuration.

3. The structure of claim 2, wherein the number of the grooves is multiple.

4. The structure of a double-fed twisted cable slip ring rotor conducting ring as claimed in any one of claims 1 to 3, wherein the contact surface is plated with hard silver.

5. The doubly-fed twisted cable slip ring rotor conducting ring structure as claimed in claim 4, wherein said connection assembly comprises:

the connecting pieces are distributed in an annular array around the central axis of the ring body and are connected with the inner wall of the ring body;

the first connecting holes are distributed in an annular array around the central axis of the ring body and are positioned on the connecting pieces;

the second connecting holes are distributed in an annular array around the central axis of the ring body and are connected with the inner wall of the ring body;

the plurality of groups of third connecting holes are distributed along the inner wall of the ring body and are positioned on the connecting piece;

the connecting piece is in a shape like a Chinese character 'pin', the first connecting hole is close to the central axis of the ring body, and the third connecting hole is close to the inner wall of the ring body.

6. The rotor conducting ring structure of the doubly-fed twisted cable slip ring as claimed in claim 5, wherein the number of the first connecting holes is 3, the number of the second connecting holes is 4, and the number of the third connecting holes is 6;

the second connecting hole is located on the connecting piece, and the second connecting hole and the third connecting hole are arranged in the same hole.

7. A rotor mechanism based on a double-fed twisted cable slip ring rotor conducting ring structure is characterized in that the double-fed twisted cable slip ring rotor conducting ring structure as claimed in any one of claims 1 to 6 is adopted.