CN221226778U - Conductive slip ring - Google Patents

Abstract

The utility model discloses an electric conduction slip ring, which comprises a stator and a rotor, wherein the stator is sleeved on the periphery of the rotor, the rotor can rotate relative to the stator, the stator comprises a shell, an integrally formed brush frame is arranged in the shell and is connected with the shell, the brush frame is sleeved on the periphery of the rotor, the brush frame is of a hollow structure, the central axis of an inner hole of the brush frame coincides with the central axis of the rotor, a plurality of brush bundles are arranged on the brush frame and are connected with the outer side wall of the rotor, and the brush bundles can slide on the outer side wall of the rotor. The concentricity of the brush holder and the rotor is improved, the brush holder and the rotor are applicable to high-rotation-speed equipment, and the universality is improved; moreover, the brush holder formed integrally is adopted, so that the assembling difficulty of the conductive slip ring can be reduced, and the efficiency is improved.

Description

Conductive slip ring

Technical Field

The utility model relates to the technical field of electric signal transmission devices, in particular to a conductive slip ring.

Background

Slip rings are the electrical components responsible for the communication and delivery of energy and signals to the rotating body. The slip rings are classified into electric slip rings, fluid slip rings and smooth rings according to transmission media, and can be commonly called as rotary communication or rotary communication. The conductive slip ring is a device for communicating two relatively rotating electrical devices, and includes a stator and a rotor, wherein the rotor can rotate relative to the stator, so that the conductive slip ring can transmit current and signals while realizing the relative rotation of the two electrical devices. The current and the signal are transmitted between the two electric devices through the lead wire of the slip ring, specifically, the current and the signal are transmitted through the stator lead wire, the brush wire, the conducting ring and the rotor lead wire, the brush wire is mainly arranged on the brush frame, and the brush frame is arranged on the periphery of the conducting ring and fixedly connected with the stator. Most of brush holders on the existing conductive slip rings adopt arc-shaped block structures, and each brush holder is spliced together through connecting pieces during assembly. However, in the assembling process, concentricity of each brush holder is difficult to ensure, so that the rotating speed of the existing conductive slip ring is limited, and the conductive slip ring cannot be suitable for high-rotating-speed equipment; moreover, the assembling difficulty of the conductive slip ring is increased by adopting the assembled brush holder.

Disclosure of utility model

In order to solve the problems in the prior art, the utility model provides a conductive slip ring, which comprises a stator and a rotor, wherein the stator is sleeved on the periphery of the rotor, the rotor can rotate relative to the stator, the stator comprises a shell, an integrally formed brush holder is arranged in the shell and connected with the shell, the brush holder is sleeved on the periphery of the rotor, the brush holder is of a hollow structure, the central axis of an inner hole of the brush holder coincides with the central axis of the rotor, a plurality of brush bundles are arranged on the brush holder, the brush bundles are connected with the outer side wall of the rotor, and the brush bundles can slide on the outer side wall of the rotor.

As a further improvement of the utility model, the rotor comprises a main shaft, the main shaft is rotatably connected with the shell, a plurality of conducting rings and insulating sheets are sleeved on the periphery of the main shaft, the conducting rings and the insulating sheets are distributed in a staggered manner, and one end of the brush bundle, which is far away from the brush frame, is connected with the outer side wall of the conducting rings.

As a further improvement of the utility model, the outer side wall of the main shaft is provided with a limiting step, one insulating sheet is abutted with the limiting step, the outer side wall of the main shaft is sleeved with a fixing ring, the conducting ring and the insulating sheet are limited between the limiting step and the fixing ring, and one insulating sheet is abutted with the end face of the fixing ring.

As a further improvement of the utility model, the main shaft is provided with a wire passing groove which is respectively communicated with the conducting ring and one end of the main shaft extending out of the shell.

As a further improvement of the utility model, the brush holder is provided with a plurality of mounting holes, the brush bundles comprise wire pressing terminals, the wire pressing terminals are respectively connected with the corresponding mounting holes, a plurality of brush wires are arranged in each wire pressing terminal, one end of each brush wire is used for being connected with a stator lead wire, and the other end of each brush wire is connected with the outer side wall of the conductive ring in a sliding manner.

As a further improvement of the utility model, the outer side wall of the brush holder is provided with a mounting plane, the mounting hole is arranged on the mounting plane, the brush holder is provided with a wire passing hole, and the wire passing hole is respectively communicated with the mounting plane and the end face of the brush holder.

As a further improvement of the utility model, the shell comprises a front end cover, a rear end cover and a shell, wherein two ends of the brush frame are respectively abutted against the front end cover and the rear end cover, the shell is sleeved on the periphery of the brush frame, and the shell is respectively connected with the front end cover and the rear end cover.

As a further improvement of the utility model, two bearings are sleeved on the outer side wall of the main shaft, one bearing is connected with the front end cover, and the other bearing is connected with the rear end cover.

As a further improvement of the utility model, the rear end cover is provided with a plurality of connecting screws, the connecting screws are in limit connection with the rear end cover, axial connecting holes are respectively arranged at the positions corresponding to the connecting screws on the brush holder, and the connecting screws penetrate through the corresponding axial connecting holes and then are connected with the front end cover.

As a further improvement of the utility model, one end of the rear end cover, which is close to the brush holder, is provided with a mounting boss, the shell is sleeved on the periphery of the mounting boss, and the end face of the shell is abutted with the end face of the rear end cover; the novel front end cover is characterized in that a first mounting groove is formed in the outer side wall of the front end cover, a first sealing ring is arranged in the first mounting groove, the first sealing ring is in sealing connection with the inner side wall of the shell, a second mounting groove is formed in the outer side wall of the mounting boss, a second sealing ring is arranged in the second mounting groove, and the second sealing ring is in sealing connection with the inner side wall of the shell.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the inner hole central axis of the brush holder is coincident with the central axis of the rotor, so that the concentricity of the brush holder and the rotor is improved, the concentricity is improved, the conductive slip ring can be suitable for high-rotation-speed equipment, and the universality is improved; moreover, the brush holder formed integrally is adopted, so that the assembling difficulty of the conductive slip ring can be reduced, and the efficiency is improved.

Drawings

In order to more clearly illustrate the utility model or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of an embodiment of the present utility model;

FIG. 3 is an exploded view of an embodiment of the present utility model;

FIG. 4 is a schematic view of a brush holder according to an embodiment of the present utility model;

Fig. 5 is a schematic view of a brush bundle structure according to an embodiment of the present utility model.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the utility model may be combined with other embodiments.

In order to enable those skilled in the art to better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-5, an electrically conductive slip ring includes a stator and a mover, the stator is sleeved on the periphery of the mover, and the mover is capable of rotating relative to the stator. The stator comprises a shell, the inside of the shell is fixedly provided with an integrally formed brush holder 1, the brush holder 1 can be formed by injection molding or machining, and the integrally formed brush holder 1 can reduce the assembly difficulty of the conductive slip ring relative to the existing block structure, so that the efficiency is improved. The brush holder 1 is sleeved on the periphery of the rotor, the brush holder 1 is of a hollow structure, and the central axis of an inner hole of the brush holder 1 coincides with the central axis of the rotor, so that the center of the brush holder 1 coincides with the center of the rotor, the concentricity of the brush holder 1 and the rotor is improved, and the brush holder can be suitable for high-rotation-speed equipment. The brush holder 1 is provided with a plurality of brush bundles which are connected with the outer side wall of the mover and can slide on the outer side wall of the mover.

When the conductive slip ring is installed, the leads on the stator are respectively electrically connected with one end, far away from the rotor, of the brush bundles, the rotor leads are connected with the outer side wall of the rotor, and the stator leads and the rotor leads are communicated through the cooperation of the brush bundles and the rotor. When the rotor is in operation, the rotor rotates in the shell, the brush bundles slide on the outer side wall of the rotor, and the brush bundles cannot be separated from the outer side wall of the rotor, so that the bundles and the rotor are always in a conducting state, namely the rotor lead wire is conducted with the stator lead wire, and the function of transmitting current or signals between the rotating bodies is realized.

The active cell includes main shaft 2, but main shaft 2 and casing swivelling joint, but main shaft 2's periphery has cup jointed three conducting ring 3 and four insulating piece 4, conducting ring 3 and insulating piece 4 dislocation distribution, and the both ends of every conducting ring 3 respectively with insulating piece 4 butt, brush the one end that brush bundle kept away from brush holder 1 meets with the lateral wall of conducting ring 3, and every conducting ring 3 corresponds at least to meet and has had a brush bundle, make can not switch on between each conducting ring 3 through setting up insulating piece 4, can improve the withstand voltage performance of this conducting slip ring, improve the stability of work. In other embodiments, the number of the conductive rings 3 and the insulating sheets 4 may be any number, so long as the two ends of each conductive ring 3 are respectively abutted against the insulating sheets 4. In this embodiment, the conductive ring 3 is a copper ring, and in other embodiments, the conductive ring 3 may be made of other conductive materials.

Specifically, a limiting step 21 is arranged on the outer side wall of the main shaft 2, one insulating sheet 4 at the leftmost side is abutted against the limiting step 21, a fixed ring 5 is sleeved on the outer side wall of the main shaft 2, the fixed ring 5 is fixedly connected with the main shaft 2, one insulating sheet 4 at the rightmost side is abutted against the end face of the fixed ring 5, and the fixed ring 5 is used for limiting the installation positions of the conducting ring 3 and the insulating sheet 4; the conducting strip 3 and the insulating sheet 4 are arranged between the limiting step 21 and the fixed ring 5 in a limiting mode, the fixed ring 5 is arranged to limit the positions of the insulating sheet 4 and the conducting strip 3, the compactness of a rotor structure is improved, and the stability of the structure is improved.

The main shaft 2 is provided with a wire passing groove 22, the wire passing groove 22 is respectively communicated with the conducting ring 3 and one end of the main shaft 2 extending out of the shell, and the wire passing groove 22 is used for accommodating a rotor lead; through setting up wire casing 22 on main shaft 2, be convenient for penetrate the active cell lead wire in the active cell, make it link to each other with conducting ring 3, can reduce the equipment degree of difficulty of this conducting slip ring, improve assembly efficiency.

A plurality of mounting planes 101 are arranged on the outer side wall of the brush holder 1, mounting holes 102 are arranged on the mounting planes 101, and the mounting holes 102 are used for mounting brush bundles. The brush bundle comprises wire pressing terminals 6, the wire pressing terminals 6 are fixedly connected with the mounting holes 102, a plurality of brush wires 7 are wrapped in each wire pressing terminal 6, one end of each brush wire 7 is used for being connected with a stator lead, the other end of each brush wire 7 is connected with the outer side wall of the corresponding conducting ring 3 in a sliding mode, the wire pressing terminals 6 are arranged to facilitate fixing of the brush wires 7, and the brush wires 7 are also convenient to connect with the stator lead. The brush holder 1 is provided with a wire through hole 103, the wire through hole 103 is respectively communicated with the mounting plane 101 and the end face of the brush holder 1, and the wire through hole 103 is used for penetrating a setting sub-lead wire. During assembly, the stator lead penetrates into the installation plane 101 through the wire through hole 103 and is connected with the brush wire 7 on the installation plane 101, so that the stator lead is conducted with the brush wire 7; the brush wire 7 is connected with the conducting ring 3, so that the stator lead wire is communicated with the rotor lead wire, and the function of transmitting current or signals is realized.

The shell comprises a front end cover 8, a rear end cover 9 and a shell 10, wherein two ends of the brush holder 1 are respectively abutted against the front end cover 8 and the rear end cover 9, the shell 10 is sleeved on the periphery of the brush holder 1, and the shell 10 is respectively connected with the front end cover 8 and the rear end cover 9. Two bearings 11 are sleeved on the outer side wall of the main shaft 2, one bearing 11 is connected with the front end cover 8, and the other bearing 11 is connected with the rear end cover 9, so that the main shaft 2 can rotate in the shell.

Specifically, four connecting screws 12 are arranged on the rear end cover 9, the connecting screws 12 can penetrate through the rear end cover 9 and are in limit connection with the rear end cover 9, axial connecting holes 104 are respectively formed in positions, corresponding to the connecting screws 12, of the brush holder 1, and one end of each connecting screw 12 sequentially penetrates through the rear end cover 9 and the corresponding axial connecting hole 104 and then is in threaded connection with the front end cover 8; the front end cover 8, the brush holder 1 and the rear end cover 9 can be fixedly connected by arranging four connecting screws 12, so that the structural stability of the conductive slip ring is improved. The one end that rear end cover 9 is close to brush holder 1 is equipped with installation boss 91, and shell 10 cup joints in the periphery of installation boss 91, and the terminal surface of shell 10 and the terminal surface butt of rear end cover 9 to make shell 10 cup joint on rear end cover 9 and rear end cover 9 spacing fixed, shell 10 and front end cover 8 pass through screw fixed connection. The outer side wall of the front end cover 8 is provided with a first mounting groove 81, a first sealing ring 13 is arranged in the first mounting groove 81, and the first sealing ring 13 is in sealing connection with the inner side wall of the shell 10; the outer side wall of the mounting boss 91 is provided with a second mounting groove 92, a second sealing ring 14 is arranged in the second mounting groove 92, and the second sealing ring 14 is in sealing connection with the inner side wall of the shell 10; by providing the first seal ring 13 and the second seal ring 14, the housing 10 is connected and fixed to the front end cover 8 and the rear end cover 9, respectively, and foreign matter such as dust can be prevented from entering the inside of the housing.

The foregoing embodiments are preferred embodiments of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the appended claims, but rather by the following claims.

Claims (10)

1. The utility model provides a conductive slip ring, includes stator and rotor, the stator cup joints the periphery of rotor, and the rotor can for stator rotary motion, its characterized in that: the stator comprises a shell, an integrally formed brush holder is arranged in the shell and connected with the shell, the brush holder is sleeved on the periphery of the rotor, the brush holder is of a hollow structure, the central axis of an inner hole of the brush holder coincides with the central axis of the rotor, a plurality of brush bundles are arranged on the brush holder, the brush bundles are connected with the outer side wall of the rotor, and the brush bundles can slide on the outer side wall of the rotor.

2. The conductive slip ring of claim 1 wherein: the rotor comprises a main shaft, the main shaft is rotatably connected with the shell, a plurality of conducting rings and insulating sheets are sleeved on the periphery of the main shaft, the conducting rings and the insulating sheets are distributed in a staggered mode, and one end, far away from the brush holder, of the brush bundle is connected with the outer side wall of the conducting rings.

3. The conductive slip ring of claim 2 wherein: the main shaft is characterized in that a limiting step is arranged on the outer side wall of the main shaft, one insulating sheet is abutted to the limiting step, a fixing ring is sleeved on the outer side wall of the main shaft, the conducting ring and the insulating sheet are limited between the limiting step and the fixing ring, and one insulating sheet is abutted to the end face of the fixing ring.

4. The conductive slip ring of claim 2 wherein: the main shaft is provided with a wire passing groove which is respectively communicated with the conducting ring and one end of the main shaft extending out of the shell.

5. The conductive slip ring of claim 2 wherein: the brush is characterized in that a plurality of mounting holes are formed in the brush frame, the brush bundles comprise wire pressing terminals, the wire pressing terminals are respectively connected with the corresponding mounting holes, a plurality of brush wires are arranged in each wire pressing terminal, one end of each brush wire is used for being connected with a stator lead wire, and the other end of each brush wire is connected with the outer side wall of the conducting ring in a sliding mode.

6. The conductive slip ring of claim 5 wherein: the electric brush comprises a brush frame, and is characterized in that an installation plane is arranged on the outer side wall of the brush frame, the installation hole is arranged on the installation plane, a wire passing hole is arranged on the brush frame, and the wire passing hole is respectively communicated with the installation plane and the end face of the brush frame.

7. The conductive slip ring as set forth in any one of claims 2-6 wherein: the shell comprises a front end cover, a rear end cover and a shell, wherein two ends of the brush holder are respectively abutted with the front end cover and the rear end cover, the shell is sleeved on the periphery of the brush holder, and the shell is respectively connected with the front end cover and the rear end cover.

8. The conductive slip ring of claim 7 wherein: two bearings are sleeved on the outer side wall of the main shaft, one bearing is connected with the front end cover, and the other bearing is connected with the rear end cover.

9. The conductive slip ring of claim 7 wherein: the rear end cover is provided with a plurality of connecting screws, the connecting screws are in limit connection with the rear end cover, axial connecting holes are respectively formed in positions, corresponding to the connecting screws, of the brush holder, and the connecting screws penetrate through the corresponding axial connecting holes and then are connected with the front end cover.

10. The conductive slip ring of claim 7 wherein: the end face of the shell is abutted with the end face of the rear end cover;

The novel front end cover is characterized in that a first mounting groove is formed in the outer side wall of the front end cover, a first sealing ring is arranged in the first mounting groove, the first sealing ring is in sealing connection with the inner side wall of the shell, a second mounting groove is formed in the outer side wall of the mounting boss, a second sealing ring is arranged in the second mounting groove, and the second sealing ring is in sealing connection with the inner side wall of the shell.