CN219659118U - Bearing-free compact slip ring - Google Patents

Abstract

The utility model discloses a bearing-free compact slip ring, which comprises a rotor and a stator sleeved outside the rotor, wherein the rotor comprises a main shaft, insulating sheets and copper rings, the middle part of the outer surface of the main shaft is inwards concave to form a fixed groove, a plurality of copper rings are sleeved in the fixed groove, and the insulating sheets are arranged between the two copper rings; the stator comprises a shell, a cap sleeve and a brush wire, wherein the shell is sleeved on the outer side of the rotor, the cap sleeve is sleeved on the outer side of the shell, and the brush wire penetrates through the shell and is connected with the copper ring. The slip ring is sleeved by eliminating the bearing, and the slip ring is directly contacted with the stator by the rotor during rotation, so that the cost is reduced, and the slip ring is not limited to vertical installation and can be horizontally installed; the special tool is not needed in the transportation process and the installation of the clients, so that the cost is reduced and the convenience is improved; the stator of the slip ring is made of insulating materials, and a brush holder and a PCB (printed circuit board) are not used, so that the cost is saved, and the size of the slip ring is reduced.

Description

Bearing-free compact slip ring

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to a bearing-free compact slip ring.

Background

Along with the development of industry, many devices are miniaturized, the updating speed is faster, the devices are generalized, the diversity and the functionality of the slip ring are more and more, the compact slip ring is more and more required to be used, the size requirement of the slip ring is smaller and less, so that the quick installation with the devices is realized, the non-calibration manufacturing is reduced, the size reduction of the slip ring is very important on the premise of ensuring the functions, and the cost and the market response speed of customers are related;

some existing similar solutions of integrated joint and power slip ring combinations 1. As published (bulletin) number CN202023322410, title of utility model: a truck-mounted hanging slip ring adopts the following specific scheme: the slip ring is vertically arranged, no bearing is arranged, a shaft sleeve is arranged at the lower end of the slip ring, and the shaft sleeve is contacted with the rotor and the stator, so that the slip ring has an operation function.

2. As publication (bulletin) number CN201620879631, title of utility model: a bearingless slip ring structure adopts the following specific scheme: the design of no bearing is adopted, and the stator and the rotor of the slip ring are fixed by special tools, so that the transportation is ensured not to shift; and the special tool is used for assisting in the installation of the client equipment, and the tool is dismantled after the installation is completed.

However, the conventional slip ring design usually uses bearings to realize rotation, and the bearings are usually standard bearings, occupy a certain axial and radial space, and cannot be made smaller and shorter;

when the traditional slip ring stator is provided with the brush wire, the brush wire is usually fixed by adopting a brush holder or a PCB, so that part of space is occupied, the appearance of a product is larger, and the slip ring cannot be made smaller.

Disclosure of Invention

The present utility model aims to provide a bearingless compact slip ring which aims to solve the problems existing in the background art. In order to achieve the purpose, the utility model adopts the following technical scheme:

the compact slip ring without the bearing comprises a rotor and a stator sleeved outside the rotor, wherein the rotor comprises a main shaft, insulating sheets and copper rings, the middle part of the outer surface of the main shaft is concaved inwards to form a fixed groove, a plurality of copper rings are sleeved in the fixed groove, and the insulating sheets are arranged between the two copper rings; the stator comprises a shell, a cap sleeve and a brush wire, wherein the shell is sleeved on the outer side of the rotor, the cap sleeve is sleeved on the outer side of the shell, and the brush wire penetrates through the shell and is connected with the copper ring.

Preferably, the shell is provided with a brush wire mounting hole, the brush wire mounting hole is used for the brush wire to pass through, and the other end of the brush wire mounting hole is externally connected with a wire.

Preferably, the stator is made of an insulating material.

The utility model has the beneficial effects that:

1. the slip ring is sleeved by eliminating the bearing, and the slip ring is directly contacted with the stator by the rotor during rotation, so that the cost is reduced, and the slip ring is not limited to vertical installation and can be horizontally installed;

2. the special tool is not needed in the transportation process and the installation of the clients, so that the cost is reduced and the convenience is improved;

3. the stator of the slip ring is made of insulating materials, and a brush holder and a PCB (printed circuit board) are not used, so that the cost is saved, and the size of the slip ring is reduced.

Drawings

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

fig. 2 is a schematic diagram of a housing structure according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. a main shaft; 2. a housing; 3. a cap sleeve; 4. an insulating sheet; 5. a copper ring; 6. brushing a wire mounting hole; 7. and (5) conducting wires.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. The drawings illustrate preferred embodiments of the utility model. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiments, and the terms "upper," "lower," "left," "right," "front," "back," and the like are used herein with reference to the positional relationship of the drawings.

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 herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

As shown in fig. 1-2, the embodiment of the utility model provides a compact slip ring without a bearing, which comprises a rotor and a stator sleeved outside the rotor, wherein the rotor comprises a main shaft 1, an insulating sheet 4 and copper rings 5, the middle part of the outer surface of the main shaft 1 is concaved inwards to form a fixed groove, a plurality of copper rings 5 are sleeved in the fixed groove, and the insulating sheet 4 is arranged between the two copper rings 5; the stator comprises a shell 2, a cap sleeve 3 and a brush wire, wherein the shell 2 is sleeved outside the rotor, the cap sleeve 3 is sleeved outside the shell 2, and the brush wire penetrates through the shell 2 and is connected with the copper ring 5.

In this embodiment, a brush wire mounting hole 6 is formed in the housing 2, the brush wire mounting hole 6 is used for allowing a brush wire to pass through, and the other end of the brush wire mounting hole 6 is externally connected with a wire 7.

In this embodiment, the stator is made of an insulating material. In the concrete material selection and installation, the cap sleeve 3 and the shell 2 are fixed in a screw connection mode, so that the overall stability of the slip ring is ensured; the cap sleeve 3 protects the inner parts of the slip ring from the external environment, and can be fixedly connected with the client equipment through screw connection, so that the correct use of the product is ensured; the shell 2 is provided with a brush wire mounting hole 6, and the brush wire is fixed after being mounted, so that the brush wire can be smoothly contacted with the conductive copper ring 5, and the normal transmission of power and signals is ensured. For the rotor, according to different electrical parameters required by the requirements of customers, copper rings 5 and insulating sheets 4 with different specifications are matched, the copper rings 5 mainly play roles in transmitting power and signals, the insulating sheets 4 play roles in isolating and insulating between the rings, the copper rings 5 and the insulating sheets 4 are ensured to be firmly fixed on a main shaft 1, and wires can be led out through wire outlet holes reserved in the main shaft 1 for the customers to connect and use; the inner diameter end surface and the outer diameter end surface of the wear-resistant material in the rotor combination are respectively connected with the rotor and the stator, so that the slip ring can normally rotate according to the motion track of the wear-resistant material; the conductive copper ring 5 is made of high-quality copper, so that the abrasion resistance and corrosion resistance of the ring channel are improved, the conductivity is good, and the long-service-life operation of the whole slip ring is ensured.

In the integral design, the rotor and the stator of the slip ring are not installed by adopting a bearing, the bearing is eliminated, and the slip ring is directly made of wear-resistant materials so as to realize the rotary motion of the slip ring; the stator of the slip ring is made of insulating materials, a brush frame or a PCB (printed circuit board) is not used, and the brush wire is directly arranged on the stator.

1. The slip ring adopts wear-resistant materials to replace the traditional deep groove ball bearings, and is directly realized by the contact of a rotor and a stator during rotation. The slip ring can rotate under the condition of no bearing, and the limit of the bearing on the size of the slip ring is solved, so that the radial and axial sizes of the slip ring can be made smaller, and the slip ring is convenient for a customer to use in a space compact scene;

2. the slip ring utilizes the non-conductive material characteristic of plastic, can directly fix the brush wire on the shell, avoids the traditional brush holder or circuit board, reduces the overall dimension and saves the cost and weight of the product.

The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present utility model, and therefore, all equivalent technical solutions are also within the scope of the present utility model, and the scope of the present utility model is defined by the claims.

Claims (3)

1. A bearingless compact slip ring characterized by: the rotor comprises a main shaft, insulating sheets and copper rings, wherein the middle part of the outer surface of the main shaft is concavely provided with a fixed groove, a plurality of copper rings are sleeved in the fixed groove, and the insulating sheets are arranged between the two copper rings; the stator comprises a shell, a cap sleeve and a brush wire, wherein the shell is sleeved on the outer side of the rotor, the cap sleeve is sleeved on the outer side of the shell, and the brush wire penetrates through the shell and is connected with the copper ring.

2. A bearingless compact slip ring as defined in claim 1, wherein: the shell is provided with a brush wire mounting hole, the brush wire mounting hole is used for the brush wire to pass through, and the other end of the brush wire mounting hole is externally connected with a wire.

3. A bearingless compact slip ring as defined in claim 1, wherein: the stator is made of insulating materials.