CN110350375B - Slip ring - Google Patents
Slip ring Download PDFInfo
- Publication number
- CN110350375B CN110350375B CN201810292094.2A CN201810292094A CN110350375B CN 110350375 B CN110350375 B CN 110350375B CN 201810292094 A CN201810292094 A CN 201810292094A CN 110350375 B CN110350375 B CN 110350375B
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- China
- Prior art keywords
- rotating shaft
- contact
- slip ring
- support frame
- groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
- H01R39/12—Slip-rings using bearing or shaft surface as contact surface
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/26—Solid sliding contacts, e.g. carbon brush
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- Arrangements For Transmission Of Measured Signals (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a slip ring comprising: the transmission assembly comprises a first rotating shaft and a second rotating shaft; the mounting assembly comprises a first support frame arranged corresponding to the first rotating shaft and a second support frame arranged corresponding to the second rotating shaft; the contact pieces are respectively connected with the first rotating shaft and the second rotating shaft; and a plurality of fastening elements, each fastening element being connected to each contact piece. The slip ring is provided with the plurality of contact pieces which are respectively abutted with the first rotating shaft and the second rotating shaft to transmit electric signals, and each contact piece is arranged on the mounting assembly, so that the slip ring is convenient to mount and easy to process; the plurality of fastening elements are sleeved outside each contact piece, so that the abrasion of the contact pieces caused by friction in the rotating process is effectively compensated, and the connection relation between the contact pieces and the transmission assembly is further ensured, so that the transmission of electric signals is more reliable; and the capability of the slip ring for bearing vibration load is improved due to the sleeved fastening element.
Description
Technical Field
The invention relates to the field of signal transmission, in particular to a slip ring.
Background
The slip ring is an electrical component which is used for communicating the rotating body and transmitting energy and signals. Slip rings, also known as rotating electrical interfaces, electrical rotating joints, may be 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 the process of practical use, some larger current signals are often required to be transmitted, and in the prior art, the larger current signals are generally transmitted by using the mercury slip rings, but the mercury slip rings are difficult to assemble due to high machining precision.
Disclosure of Invention
Therefore, it is necessary to provide a slip ring to solve the problem of difficulty in machining and assembling.
A slip ring, comprising:
the transmission assembly comprises a first rotating shaft and a second rotating shaft;
the mounting assembly comprises a first supporting frame arranged corresponding to the first rotating shaft and a second supporting frame arranged corresponding to the second rotating shaft;
the contact pieces are respectively connected with the first rotating shaft and the second rotating shaft; the contact piece comprises an extension part, a first contact part and a second contact part which are respectively connected with the extension part; the first contact portion abuts against the first rotating shaft; the second contact part is abutted against the second rotating shaft; and
and the fastening elements are respectively connected with the contact pieces.
The slip ring is provided with the plurality of contact pieces which are respectively abutted with the first rotating shaft and the second rotating shaft to transmit electric signals, and each contact piece is arranged on the mounting assembly, so that the slip ring is convenient to mount and easy to process; the plurality of fastening elements are sleeved outside each contact piece, so that the abrasion of the contact pieces caused by friction in the rotating process is effectively compensated, and the connection relation between the contact pieces and the transmission assembly is further ensured, so that the transmission of electric signals is more reliable; and because the fastening element is sleeved, the capability of the slip ring for bearing vibration load is improved, and the electric signal can be effectively transmitted in the vibration process.
In one embodiment, a plurality of first positioning grooves are arranged on the first support frame; a plurality of second positioning grooves are formed in the second supporting frame; each first positioning groove corresponds to each second positioning groove. Through setting up each first constant head tank and second constant head tank can correspond each contact piece and correspondingly imbed, the location of easy to assemble.
In one embodiment, each of the contact pieces is correspondingly disposed in each of the first positioning slot and the second positioning slot. The installation component limits the contact pieces, and ensures that the contact pieces do not transversely move along the rotating direction in the working process.
In one embodiment, the contact further comprises a first slot portion and a second slot portion; the first clamping groove part corresponds to the first positioning groove; the second clamping groove part corresponds to the second positioning groove. The first clamping groove part and the second clamping groove part are arranged on the contact pieces, so that the contact pieces do not move along the axial direction in the working process.
In one embodiment, a plurality of guide grooves are arranged on one side of each contact piece away from the transmission assembly; each fastening element is correspondingly arranged in each guide groove. During the rotational vibration of the transmission assembly, the fastening element is secured against axial displacement by the fastening element arranged in the guide groove.
In one embodiment, the fastening element is arranged around the outside of each contact plate. Through the elastic contraction of the fastening element, the contact pieces are tightly attached to the transmission assembly, and the reliability of point signal transmission is further ensured.
In one embodiment, each of the fastening elements is disposed corresponding to the first contact portion and the second contact portion, respectively. The fastening elements are correspondingly arranged at the abutting positions of the contact pieces and the transmission assembly, so that the positive pressure of the abutting of the contact pieces and the transmission assembly is ensured, and the connection is more reliable.
In one embodiment, the first rotating shaft is provided with a limiting groove; the first contact part is correspondingly embedded in the limiting groove. Through the limiting groove and the first contact part embedded in the limiting groove, the first rotating shaft is guaranteed not to move axially in the rotating and vibrating working process.
In one embodiment, the second rotating shaft is provided with a limiting groove; the second contact part is correspondingly embedded in the limiting groove. Through spacing groove and the second contact site of embedding spacing inslot, guarantee that second pivot can not follow axial displacement at the working process of rotation and vibration.
In one embodiment, the fastening element is a spring.
Drawings
FIG. 1 is a schematic structural view of a slip ring according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of the slip ring of FIG. 1;
FIG. 3 is a schematic view of the contact sheet of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the slip ring of FIG. 1;
fig. 5 is a schematic structural view of a slip ring according to another embodiment of the present invention.
The reference numbers in the drawings have the meanings given below:
100-a slip ring;
10-a transmission component, 20-a first rotating shaft, 30-a second rotating shaft and 40-a limiting groove;
50-an installation component, 60-a first support frame, 65-a first positioning groove, 70-a second support frame and 75-a second positioning groove;
80-contact piece, 81-extension, 82-first contact, 83-second contact, 84-first bayonet part, 85-second bayonet part, 86-guide;
90-a fastening element;
200-a slip ring;
40 a-a first limit groove, 40 b-a second limit groove.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention 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.
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 invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 4, a slip ring 100 according to a preferred embodiment of the present invention includes a transmission assembly 10, a mounting assembly 50, a plurality of contact plates 80 respectively connected to the transmission assembly 10 and the mounting assembly 50, and a plurality of fastening elements 90 connected to each contact plate 80; the slip ring 100 is used to transmit large electrical signals between rotating bodies.
The transmission assembly 10 includes a first rotating shaft 20 and a second rotating shaft 30; the first rotating shaft 20 is extended in a cylindrical shape, the second rotating shaft 30 is extended in a cylindrical shape, and the central axes of the first rotating shaft 20 and the second rotating shaft 30 are overlapped to ensure that the first rotating shaft 20 and the second rotating shaft 30 rotate around the same axis. In this embodiment, the second rotating shaft 30 is provided with an annular limiting groove 40, and the limiting groove 40 is used for clamping the contact piece 80; the limiting groove 40 is used for limiting the second rotating shaft 30 in the axial direction during the rotating and vibrating processes, and preventing the second rotating shaft 30 from moving in the axial direction.
The mounting assembly 50 is disposed around the transmission assembly 10, and the mounting assembly 50 includes a first supporting frame 60 disposed corresponding to the first rotating shaft 20 and a second supporting frame 70 disposed corresponding to the second rotating shaft 30; the first support frame 60 is sleeved outside the first rotating shaft 20 in a circular ring shape, and the center of the first support frame 60 is overlapped with the axis of the first rotating shaft 20; the first support frame 60 is provided with a plurality of first positioning grooves 65; each first positioning groove 65 is arranged on one side of the first support frame 60 far away from the first rotating shaft 20 in a rectangular groove shape, each first positioning groove 65 is arranged around the first support frame 60 at intervals, and the first positioning grooves 65 extend from the outer side surface of the first support frame 60 to the inner side of the first rotating shaft 20; the second support frame 70 has the same structural shape as the first support frame 60, the second support frame 70 is sleeved outside the second rotating shaft 30, and the center of the second support frame 70 is overlapped with the axis of the second rotating shaft 30; the second supporting frame 70 is provided with a plurality of second positioning grooves 75; the second positioning grooves 75 correspond to the first positioning grooves 65 one by one. In the present embodiment, the number of the first positioning grooves 65 and the second positioning grooves 75 is six; the first positioning grooves 65 are uniformly spaced, and the second positioning grooves 75 are uniformly spaced corresponding to the first positioning grooves 65; it can be understood that the number of the first positioning grooves 65 is 3 to 8.
Each contact 80 extends along the direction of the transmission assembly 10, each contact 80 is correspondingly disposed in the first positioning groove 65 and the second positioning groove 75, each contact 80 is correspondingly disposed at the interval between the first rotating shaft 20 and the second rotating shaft 30, and the contacts 80 are respectively connected with the first rotating shaft 20 and the second rotating shaft 30 for transmitting electrical signals. In the present embodiment, the number of the contact pieces 80 is six, which is the same as the number of the first positioning grooves 65 and the second positioning grooves 75. The contact piece 80 includes an extension part 81, and a first contact part 82 and a second contact part 83 connected to the extension part 81, respectively; the extending portion 81 is disposed in an elongated shape and extends along the direction of the transmission assembly 10, and the extending assembly is disposed at the interval between the first rotating shaft 20 and the second rotating shaft 30; the first contact portion 82 is elongated and extends along the direction perpendicular to the extending portion 81, the first contact portion 82 is disposed between the extending portion 81 and the first rotating shaft 20, the first contact portion 82 extends from one side of the extending portion 81 close to the first rotating shaft 20 to the direction of the first rotating shaft 20, and one end of the first contact portion 82 abuts against the first rotating shaft 20. It is understood that when the first rotating shaft 20 is provided with the limiting groove 40, one end of the first contact portion 82 is correspondingly embedded in the limiting groove 40 of the first rotating shaft 20. The second contact portion 83 is disposed between the extending portion 81 and the second rotating shaft 30 in an elongated shape, the second contact portion 83 extends from a side of the extending portion 81 close to the second rotating shaft 30 to the direction of the second rotating shaft 30, and one end of the second contact portion 83 abuts against the second rotating shaft 30. It can be understood that, when the second rotating shaft 30 is provided with the limiting groove 40, one end of the second contact portion 83 is correspondingly embedded in the limiting groove 40 of the second rotating shaft 30.
Each contact 80 further includes a first slot portion 84 and a second slot portion 85; the first clamping groove part 84 is arranged on the extending part 81 in a rectangular groove shape, the first clamping groove part 84 extends outwards from one side of the extending part 81 close to the first rotating shaft 20 to a direction far away from the first rotating shaft 20, the first clamping groove part 84 is arranged corresponding to the first positioning groove 65, and the first clamping groove part 84 and the first positioning groove 65 are clamped with each other; the second slot portion 85 is a rectangular groove and is disposed on the extending portion 81, the second slot portion 85 extends from one side of the extending portion 81 close to the second shaft 30 to the outside in the direction away from the second shaft 30, the second slot portion 85 corresponds to the second positioning groove 75, and the second slot portion 85 is in mutual engagement with the second positioning groove 75. Further, each contact plate 80 further includes a plurality of guide slots 86; each guide groove 86 is disposed in an arc shape on a side of the extending portion 81 opposite to the first contact portion 82 and the second contact portion 83, and each guide groove 86 extends from the side of the extending portion 81 to the direction of the transmission assembly 10. In the present embodiment, each guide groove 86 is disposed corresponding to the first contact portion 82 and the second contact portion 83, and each guide groove 86 is disposed at one end of the first contact portion 82 away from the first rotating shaft 20 and one end of the second contact portion 83 away from the second rotating shaft 30. Further, the number of the guide grooves 86 is four; two are disposed at one end of the first contact portion 82 away from the first rotating shaft 20; two are disposed at one end of the second contact portion 83 away from the second rotating shaft 30.
The fastening elements 90 extend in a circular shape, the fastening elements 90 are respectively connected with the contact plates 80 and sleeved on the outer side surfaces of the contact plates 80, the fastening elements 90 are correspondingly arranged in the guide grooves 86, and the fastening elements 90 are embedded in the contact plates 80. In this embodiment, the fastening element 90 is a spring; the fastening elements 90 are provided in four corresponding to the number of the guide grooves 86; two corresponding positions are provided at which the first contact portions 82 are provided in the contact piece 80; the other two are correspondingly provided at positions where the contact pieces 80 are provided to meet the second contact portions 83.
The working principle of the slip ring 100 of the present invention is: when the device is installed, the first support frame 60 is sleeved on the first rotating shaft 20, and the second support frame 70 is sleeved on the second rotating shaft 30; rotating the first support frame 60 to make each first positioning groove 65 correspond to each second positioning groove 75 respectively; then, each contact piece 80 is arranged in the first positioning groove 65 and the second positioning groove 75, and the adjustment is performed to make the first clamping groove part 84 correspond to the first positioning groove 65 and the second clamping groove part 85 correspond to the second positioning groove 75, at this time, the contact pieces 80 are respectively abutted against the first rotating shaft 20 and the second rotating shaft 30; then, the fastening elements 90 are sleeved in the guide grooves 86 to fix the contact pieces 80; and finally, coaxially adjusting the first rotating shaft 20 and the second rotating shaft 30 to ensure that the rotating axes of the first rotating shaft 20 and the second rotating shaft 30 are overlapped. In the using process, the first rotating shaft 20 and the second rotating shaft 30 can rotate relatively, and both the first rotating shaft 20 and the second rotating shaft 30 can be used as input ends or output ends of signals. In the installation process, the first positioning groove 65 and the second positioning groove 75 are arranged correspondingly, so that the positions of the contact pieces 80 can be quickly positioned and installed, and the installation is more convenient and quicker; the slip ring 100 is simple and reliable in structure, and parts can be machined more easily, so that the machining cost is reduced; in the use process of the slip ring 100, not only loads for rotation are received, but also interference loads for enabling the transmission assembly 10 to generate vibration are generated, the contact piece 80 is axially fixed through the first clamping groove part 84 and the second clamping groove part 85, the transmission assembly 10 is axially fixed through the limiting groove 40 arranged according to specific use conditions, the capability of the slip ring 100 for resisting the vibration interference loads is improved, meanwhile, due to the fact that the fastening element 90 is sleeved, the reliability of connection between the contact piece 80 and the transmission assembly 10 is guaranteed through elastic shrinkage of the fastening element 90, and the load resisting performance of the slip ring 100 is further improved.
Referring to fig. 5, a slip ring 200 according to a second embodiment of the present invention is different from the slip ring 100 according to the first embodiment in that a first limiting groove 40a is disposed at a position where the first rotating shaft 20 is connected to each contact piece 80, and the first limiting groove 40a is annularly sleeved on the first rotating shaft 20 and is used for limiting the first rotating shaft 20 along an axis; the second rotating shaft 30 is provided with a second limiting groove 40b corresponding to the position where the contact pieces 80 are connected, for limiting the second rotating shaft 30 along the axis.
In the two embodiments, the transmission assembly is provided with an annular limiting groove for clamping the contact piece. In other embodiments, the first rotating shaft and the second rotating shaft may not have a limiting groove, i.e., the first rotating shaft and the second rotating shaft are not axially limited. It can be understood that whether the corresponding limiting grooves are arranged on the first rotating shaft and the second rotating shaft can be selected according to the use requirement.
The slip ring is provided with the plurality of contact pieces which are respectively abutted with the first rotating shaft and the second rotating shaft to transmit electric signals, and each contact piece is arranged on the mounting assembly, so that the slip ring is convenient to mount and easy to process; the plurality of fastening elements are sleeved outside each contact piece, so that the abrasion of the contact pieces caused by friction in the rotating process is effectively compensated, and the connection relation between the contact pieces and the transmission assembly is further ensured, so that the transmission of electric signals is more reliable; and because the fastening element is sleeved, the capability of the slip ring for bearing vibration load is improved, and the electric signal can be effectively transmitted in the vibration process.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A slip ring, comprising:
the transmission assembly comprises a first rotating shaft and a second rotating shaft;
the mounting assembly comprises a first supporting frame arranged corresponding to the first rotating shaft and a second supporting frame arranged corresponding to the second rotating shaft;
the contact pieces are respectively connected with the first rotating shaft and the second rotating shaft; the contact piece comprises an extension part, a first contact part and a second contact part which are respectively connected with the extension part; the first contact portion abuts against the first rotating shaft; the second contact part is abutted against the second rotating shaft; and
the fastening elements are respectively connected with the contact pieces;
the first support frame is sleeved outside the first rotating shaft in a circular ring shape, the second support frame and the first support frame are the same in structural shape, and the second support frame is sleeved outside the second rotating shaft; the extension is close to the one end and the first support frame joint of first contact site, the extension is close to the one end and the second support frame joint of second contact site.
2. Slip ring according to claim 1, characterized in that the fastening elements are arranged around the contact pieces and clamp the contact pieces against the transmission assembly.
3. Slip ring according to claim 2, characterized in that the fastening element has at least one corresponding to the first contact portion and at least one corresponding to the second contact portion.
4. Slip ring according to claim 3, characterized in that each contact plate is provided with a number of guide grooves; the guide grooves correspond to the fastening elements respectively, and the fastening elements are embedded in the guide grooves correspondingly.
5. The slip ring according to claim 1, wherein a plurality of first positioning grooves are formed on the first support frame; a plurality of second positioning grooves are formed in the second supporting frame; each first positioning groove corresponds to each second positioning groove.
6. The traveler of claim 5, wherein each of said contact pieces is disposed in a corresponding one of said first and second positioning slots.
7. The traveler of claim 6, wherein said contact piece further comprises a first bayonet portion and a second bayonet portion; the first clamping groove part corresponds to the first positioning groove; the second clamping groove part corresponds to the second positioning groove.
8. The slip ring of claim 1, wherein the first rotating shaft is provided with an annular limiting groove; the first contact part is correspondingly embedded in the limiting groove.
9. The slip ring of claim 1, wherein the second shaft is provided with an annular limiting groove; the second contact part is correspondingly embedded in the limiting groove.
10. Slip ring according to any one of claims 1-9, ch a racterized i n that the fastening element is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292094.2A CN110350375B (en) | 2018-04-03 | 2018-04-03 | Slip ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810292094.2A CN110350375B (en) | 2018-04-03 | 2018-04-03 | Slip ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110350375A CN110350375A (en) | 2019-10-18 |
| CN110350375B true CN110350375B (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810292094.2A Active CN110350375B (en) | 2018-04-03 | 2018-04-03 | Slip ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110350375B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7282469B2 (en) * | 2020-01-17 | 2023-05-29 | イーグル工業株式会社 | rotating connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5648799A (en) * | 1999-09-10 | 2001-04-17 | Inax Corporation | Hot and cold water mixing device |
| US6890160B2 (en) * | 2002-11-05 | 2005-05-10 | Visteon Global Technologies, Inc. | Fuel pump having electrically biased shell |
| CN202710789U (en) * | 2012-05-31 | 2013-01-30 | 中航光电科技股份有限公司 | Photoelectric composite rotary connector |
| CN105428951B (en) * | 2015-11-23 | 2018-04-24 | 中航光电科技股份有限公司 | A kind of electric rotary connector |
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2018
- 2018-04-03 CN CN201810292094.2A patent/CN110350375B/en active Active
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| Publication number | Publication date |
|---|---|
| CN110350375A (en) | 2019-10-18 |
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