CN113871991A - A kind of high-reliability 100 million-turn rolling electric contact structure and installation method - Google Patents
A kind of high-reliability 100 million-turn rolling electric contact structure and installation method Download PDFInfo
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- CN113871991A CN113871991A CN202111270491.8A CN202111270491A CN113871991A CN 113871991 A CN113871991 A CN 113871991A CN 202111270491 A CN202111270491 A CN 202111270491A CN 113871991 A CN113871991 A CN 113871991A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009434 installation Methods 0.000 title claims description 11
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000005489 elastic deformation Effects 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 abstract description 3
- 230000009351 contact transmission Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
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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
- H01R39/18—Contacts for co-operation with commutator or slip-ring, e.g. contact brush
- H01R39/28—Roller contacts; Ball contacts
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Abstract
本发明公开了一种高可靠亿转滚动电接触结构及装调方法，涉及滚动旋转电接触传输技术领域。该发明包括外绝缘圈，外绝缘圈内部放置有内绝缘圈，外绝缘圈一侧安装有外导电环，内绝缘圈一侧安装有内导电环，内导电环和外导电环之间依次间隔布置有弹性环和惰轮，外导电环的平面度在0.01mm内，弹性环的圆度在0.01mm‑0.03mm内，惰轮的圆度0.01mm‑0.03mm内，弹性环的弹性变形量大于弹性环壁厚的2倍，弹性环的弹性变形应力控制在亿转疲劳应力的30％。本发明通过弹性环与惰轮的作用，滚动导电摩擦因圆周布置多个弹性导电体，传输功率大，载流密度大；滚动导电摩擦的摩擦阻力矩下，滚动阻力矩比滑动阻力矩可小两个数量级，滚动磨损量小。
The invention discloses a high-reliability 100-million-turn rolling electric contact structure and an adjustment method, and relates to the technical field of rolling and rotating electric contact transmission. The invention includes an outer insulating ring, an inner insulating ring is placed inside the outer insulating ring, an outer conductive ring is installed on one side of the outer insulating ring, an inner conductive ring is installed on one side of the inner insulating ring, and the inner conductive ring and the outer conductive ring are sequentially spaced An elastic ring and an idler are arranged. The flatness of the outer conductive ring is within 0.01mm, the roundness of the elastic ring is within 0.01mm‑0.03mm, the roundness of the idler is within 0.01mm‑0.03mm, and the elastic deformation of the elastic ring is within 0.01mm‑0.03mm. More than twice the wall thickness of the elastic ring, the elastic deformation stress of the elastic ring is controlled at 30% of the fatigue stress of 100 million revolutions. Through the action of the elastic ring and the idler, the rolling conductive friction has large transmission power and high current-carrying density due to the circumferential arrangement of multiple elastic conductors; under the frictional resistance torque of the rolling conductive friction, the rolling resistance torque can be smaller than the sliding resistance torque. Two orders of magnitude, the amount of rolling wear is small.
Description
Technical Field
The invention belongs to the technical field of rolling rotation electric contact transmission, and particularly relates to a high-reliability hundred million-turn rolling electric contact structure and an installation and adjustment method.
Background
The technical capability of the rolling electric rotary transmission technology is related to the on-orbit functional performance of a spacecraft, and restricts the improvement of the overall capability level of a spacecraft platform and a load, and an electric contact friction pair material of the device mainly bears the transmission of electric power and electric signals in the rotating process, so that the reliability requirement is extremely high.
The existing device has the problems of low transmission power, low current-carrying density and difficult installation, and can not well meet the market demand.
Disclosure of Invention
The invention aims to provide a highly reliable hundred million-turn rolling electric contact structure, through the action of an elastic ring and an idler wheel, rolling conductive friction is large in transmission power and current-carrying density due to the fact that a plurality of elastic electric conductors are circumferentially arranged; under the friction resistance moment of rolling conductive friction, the rolling resistance moment can be two orders of magnitude less than the sliding resistance moment, and the rolling wearing capacity is little, has solved current device and has had the problem that transmission power is low, current-carrying density is little and the installation is difficult, the unable fine demand in satisfying market's problem.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a high-reliability hundred million-turn rolling electric contact structure which comprises an outer insulating ring, wherein an inner insulating ring is arranged in the outer insulating ring;
an outer conducting ring is arranged on one side of the outer insulating ring, and an inner conducting ring is arranged on one side of the inner insulating ring;
and an elastic ring and an idler wheel are sequentially arranged between the inner conductive ring and the outer conductive ring at intervals.
Further, the flatness of the outer conductive ring is within 0.01mm, the roundness of the elastic ring is within 0.01mm-0.03mm, and the roundness of the idler wheel is within 0.01mm-0.03 mm.
Further, the elastic deformation amount of the elastic ring is more than 2 times of the wall thickness of the elastic ring, and the elastic deformation stress of the elastic ring is controlled to be 30% of the hundred million-year fatigue stress.
Furthermore, the elastic ring is made of high-elasticity fatigue-resistant strength alloy.
Further, the elastic ring is in contact with the idler wheel, and two sides of the outer cylindrical surface of the elastic ring are designed with an arc of R0.3mm in contact with the arc of the idler wheel.
Further, the idler wheel has a contact gap of 0.3mm between the inner conductive ring and the outer conductive ring in the diameter direction.
Furthermore, step round hole design is adopted on both sides of the idler wheel, and a gap of 0.1mm is formed between the idler wheel and the inner insulating ring and between the idler wheel and the outer insulating ring in the axial direction.
Further, the invention provides a method for adjusting a high-reliability multi-hundred million-turn rolling electric contact structure, which comprises the following steps:
SS01 taking the mounting surfaces of the inner insulating ring and the outer insulating ring as reference surfaces, controlling the height difference between the inner insulating ring and the outer insulating ring within 0.01-0.02mm after the inner insulating ring and the outer insulating ring are mounted, and then mounting the inner conducting ring and the outer conducting ring on the inner insulating ring and the outer insulating ring, wherein the coaxiality of the inner conducting ring and the outer conducting ring is controlled to be 0.01-0.03mm in the mounting process;
SS02 installs the elastic ring, idler in order between the inner and outer conducting ring, when the last elastic ring and idler, arranges N-1 idler and elastic ring, makes idler and elastic ring keep relative fixed position by the friction of elastic ring, puts the last idler in the last idler and elastic ring position, then uses the reverse mouth opening pliers, controls the opening angle of mouth opening pliers, makes the elastic ring deformation control in the elastic deformation range, puts the last elastic ring in the installation area, after the installation, according to the running-in of the rotation speed less than 1r/min in the positive and negative direction, uniforms the installation position of elastic ring and idler;
SS03 elastic ring and idler are arranged between inner and outer conducting rings at intervals in turn, the size and number of the elastic ring determine the rolling rotation electricity transmission capacity of the inner and outer conducting rings, the size of the elastic ring determines the circumferential arrangement space of the inner and outer conducting rings, in order to improve the space utilization rate, the elastic ring is especially suitable for the space utilization in the diameter direction, by designing the size structure of the elastic ring and the idler, the more the space in the diameter direction is, the more the number of the elastic ring and the idler are arranged, the current carrying capacity and the electric contact reliability of the rolling electricity transmission are improved, and meanwhile, the limit size of the elastic ring is controlled within 8 mm;
the SS04 elastic ring is contacted with the idler wheel, and the two sides of the outer cylindrical surface of the elastic ring are provided with the circular arcs with R0.3mm which are contacted with the circular arcs of the idler wheel, thereby realizing the self-stabilization of the idler wheel and the elastic ring, and in the process of matching the rolling speed, the elastic ring is matched with the idler wheel in the speed of revolution and rotation, and the principle of a rolling electricity transmission structure is kept;
SS05 idler is in the diameter direction, it has 0.3mm contact clearance to design with inside and outside conducting ring, under the state of being equipped with flexible ring, the elastic ring promotes the idler toward outer contact, make the circular arc of idler and outer conducting ring edge carry out rolling contact, realize the operation separately of elastic ring and idler, in the both sides of idler, adopt the design of step round hole, the sliding contact of idler with interior insulating collar and outer insulating collar has been reduced, simultaneously, in idler and interior insulating collar and outer insulating collar axial direction, design has 0.1mm clearance, guarantee that the idler can not take place sliding friction with insulating collar and outer insulating collar, simultaneously, outer insulating collar and interior insulating collar form an observation annular, can observe the running condition of idler and elastic ring, simultaneously outer insulating collar and interior insulating collar have restricted the running orbit of idler, keep relative independence between each ring, mutually noninterfere.
The invention has the following beneficial effects:
1. according to the invention, through the action of the elastic ring and the idler wheel, rolling conductive friction is large in transmission power and current-carrying density due to the fact that a plurality of elastic conductors are circumferentially arranged; under the friction resistance moment of the rolling conductive friction, the rolling resistance moment can be two orders of magnitude smaller than the sliding resistance moment, and the rolling abrasion loss is small.
2. Through the action of the inner conducting ring and the outer conducting ring, the rolling conducting friction contact resistor is stable, the contact electrical noise is low, and the requirement of high-quality signal transmission is met; the rolling conductive friction pair is in contact with roller ways of the inner conductive ring and the outer conductive ring mainly by means of deformation pretightening force of the rolling conductive elastic circular ring to transmit electric power and electric signals.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an assembly view of the present invention;
FIG. 2 is a view of the idler and elastomeric ring arrangement of the present invention;
FIG. 3 is a schematic cross-sectional view taken at A-A of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic cross-sectional view taken at B-B of FIG. 1 in accordance with the present invention;
FIG. 5 is a schematic cross-sectional view taken at C-C of FIG. 1 in accordance with the present invention;
FIG. 6 is a view of the elastomeric ring in contact with an idler gear in accordance with the present invention;
FIG. 7 is a diagram illustrating a contact relationship between an elastic ring and inner and outer conductive rings according to the present invention;
FIG. 8 is a view of the idler in operative contact with the idler of the present invention;
FIG. 9 illustrates a side-to-side contact of the idler of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-outer insulating ring, 2-inner insulating ring, 3-elastic ring, 4-idle wheel, 5-inner conducting ring and 6-outer conducting ring.
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.
Referring to fig. 1-9, the present invention is a highly reliable hundred million rotary rolling electrical contact structure, which includes an outer insulating ring 1, an inner insulating ring 2 disposed inside the outer insulating ring;
an outer conducting ring 6 is arranged on one side of the outer insulating ring 1, and an inner conducting ring 5 is arranged on one side of the inner insulating ring 2;
the elastic ring 3 and the idle wheel 4 are arranged between the inner conductive ring 5 and the outer conductive ring 6 at intervals in sequence.
Wherein, the planeness of the outer conductive ring 6 is within 0.01mm, the roundness of the elastic ring 3 is within 0.01mm-0.03mm, and the roundness of the idle wheel 4 is within 0.01mm-0.03 mm;
the installation surfaces of the inner insulating ring 2 and the outer insulating ring 1 are used as reference surfaces, after the inner insulating ring 2 and the outer insulating ring 1 are installed, the height difference between the inner insulating ring 2 and the outer insulating ring 1 is controlled within 0.01-0.02mm, then the inner conducting ring 5 and the outer conducting ring 6 are installed on the inner insulating ring 2 and the outer insulating ring 1, and in the installation process, the coaxiality of the inner conducting ring 5 and the outer conducting ring 6 is controlled to be 0.01-0.03 mm.
Wherein the elastic deformation of the elastic ring 3 is 2 times greater than the wall thickness of the elastic ring 3, and the elastic deformation stress of the elastic ring 3 is controlled to be 30% of the fatigue stress of hundred million revolutions;
the elastic ring 3 is made of high-elasticity fatigue-resistant alloy.
Wherein, the elastic ring 3 is contacted with the idle wheel 4, and the two sides of the outer cylindrical surface of the elastic ring 3 are provided with an arc of R0.3mm which is contacted with the arc of the idle wheel 4; the contact area is used for contacting with the idler wheel 4, so that the contact area of the electric transmission and rolling structure is in contact with the contact area in a partitioning mode, and the reliability of the electric transmission is improved.
Wherein, a contact gap of 0.3mm is arranged between the idler pulley 4 and the inner and outer conducting rings 6 in the diameter direction;
two sides of the idle wheel 4 are designed by step round holes, and a gap of 0.1mm is formed between the idle wheel 4 and the inner insulating ring 2 and between the idle wheel 4 and the outer insulating ring 1 in the axial direction;
guarantee that idler 4 can not take place sliding friction with insulating circle and outer insulating circle 1, simultaneously, outer insulating circle 1 and interior insulating circle 2 form an observation annular, can observe the operation condition of idler 4 and elastic ring 3, and outer insulating circle 1 and interior insulating circle 2 have restricted idler 4's operation track simultaneously, keep relatively independent, mutually noninterfere between each ring.
The invention relates to a high-reliability debugging method of a hundred million-turn rolling electric contact structure, which comprises the following steps of:
SS01 takes the mounting surfaces of the inner insulating ring 2 and the outer insulating ring 1 as datum surfaces, after the inner insulating ring 2 and the outer insulating ring 1 are mounted, the height difference between the two is controlled within 0.01-0.02mm, then the inner conducting ring 5 and the outer conducting ring 6 are mounted on the inner insulating ring 2 and the outer insulating ring 1, and in the mounting process, the coaxiality of the inner conducting ring 5 and the outer conducting ring 6 is controlled within 0.01-0.03 mm;
SS02 sequentially arranging the elastic ring 3 and the idler wheel 4 between the inner conductive ring and the outer conductive ring 6, arranging N-1 idler wheels 4 and the elastic ring 3 when the last elastic ring 3 and the idler wheels 4 are arranged, enabling the idler wheels 4 and the elastic ring 3 to keep a relatively fixed position by means of friction force of the elastic ring 3, firstly placing the last idler wheel 4 at the position of the last idler wheel 4 and the elastic ring 3, then adopting reverse mouth opening pliers to control the opening angle of the mouth opening pliers so that the elastic ring 3 deforms and is controlled within an elastic deformation range, placing the last elastic ring 3 in a mounting area, and after mounting is completed, uniformly arranging the mounting positions of the elastic ring 3 and the idler wheels 4 according to running-in the positive and reverse directions of the rotating speed lower than 1 r/min;
SS03 elastic ring 3 and idler wheel 4 are arranged between inner and outer conducting rings 6 at intervals in turn, the size and number of elastic ring 3 determine the rolling rotation electricity transmission capacity of inner and outer conducting rings 6, the size of elastic ring 3 determines the circumferential arrangement space of inner and outer conducting rings 6, in order to improve the space utilization rate, especially suitable for the space utilization in the diameter direction, by designing the size structure of elastic ring 3 and idler wheel 4, the more the space in the diameter direction is limited, the more the number of elastic ring 3 and idler wheel 4 are arranged, the current carrying capacity and the electric contact reliability of rolling electricity transmission are improved, and the limit size of elastic ring 3 is controlled within 8 mm;
the SS04 elastic ring 3 contacts with the idler pulley 4, the two sides of the outer cylindrical surface of the elastic ring 3 are designed with the circular arc of R0.3mm to contact with the circular arc of the idler pulley 4, so that the self-stabilization of the idler pulley 4 and the elastic ring 3 is realized, in the rolling speed matching process, the elastic ring 3 and the idler pulley 4 are matched in revolution and rotation speed, and the rolling electric transmission structure principle is kept;
the SS05 idler 4 is designed with 0.3mm contact gap with the inner and outer conducting rings 6 in the diameter direction, under the state that the flexible ring is assembled, the elastic ring 3 pushes the idler 4 to contact outwards, so that the circular arc of the idler 4 is in rolling contact with the edge of the outer conducting ring 6, the respective operation of the elastic ring 3 and the idler 4 is realized, the sliding contact of the idler 4 with the inner insulating ring 2 and the outer insulating ring 1 is reduced by adopting the step round hole design on the two sides of the idler 4, meanwhile, the gap of 0.1mm is designed in the axial direction of the idler 4, the inner insulating ring 2 and the inner insulating ring 2 to ensure that the idler 4 can not generate sliding friction with the insulating ring and the outer insulating ring 1, meanwhile, the outer insulating ring 1 and the inner insulating ring 2 form an observation ring groove, the operation condition of the idler 4 and the elastic ring 3 can be observed, and the operation track of the idler 4 is limited by the outer insulating ring 1 and the inner insulating ring 2, keep the relative independence between each ring, mutual noninterference.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111270491.8A CN113871991A (en) | 2021-10-29 | 2021-10-29 | A kind of high-reliability 100 million-turn rolling electric contact structure and installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111270491.8A CN113871991A (en) | 2021-10-29 | 2021-10-29 | A kind of high-reliability 100 million-turn rolling electric contact structure and installation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015102200A (en) * | 2013-11-27 | 2015-06-04 | 日本精工株式会社 | Rolling bearing for on-vehicle motor |
| CN105226477A (en) * | 2015-10-23 | 2016-01-06 | 九江精达检测技术有限公司 | A kind of electric rotation transmission device that rolls |
| CN107834332A (en) * | 2017-09-12 | 2018-03-23 | 中国兵器装备集团上海电控研究所 | It is a kind of can modularization assembling rolling electricity rotation transmission device |
| CN112928568A (en) * | 2021-02-07 | 2021-06-08 | 河南科技大学 | Rotary conductive device |
| CN216389987U (en) * | 2021-10-29 | 2022-04-26 | 中船九江精达科技股份有限公司 | High-reliability hundred million-rotation rolling electric contact structure |
-
2021
- 2021-10-29 CN CN202111270491.8A patent/CN113871991A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015102200A (en) * | 2013-11-27 | 2015-06-04 | 日本精工株式会社 | Rolling bearing for on-vehicle motor |
| CN105226477A (en) * | 2015-10-23 | 2016-01-06 | 九江精达检测技术有限公司 | A kind of electric rotation transmission device that rolls |
| CN107834332A (en) * | 2017-09-12 | 2018-03-23 | 中国兵器装备集团上海电控研究所 | It is a kind of can modularization assembling rolling electricity rotation transmission device |
| CN112928568A (en) * | 2021-02-07 | 2021-06-08 | 河南科技大学 | Rotary conductive device |
| CN216389987U (en) * | 2021-10-29 | 2022-04-26 | 中船九江精达科技股份有限公司 | High-reliability hundred million-rotation rolling electric contact structure |
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