CN113572386B - Strip-shaped friction nano generator for monitoring broken teeth - Google Patents
Strip-shaped friction nano generator for monitoring broken teeth Download PDFInfo
- Publication number
- CN113572386B CN113572386B CN202110872325.9A CN202110872325A CN113572386B CN 113572386 B CN113572386 B CN 113572386B CN 202110872325 A CN202110872325 A CN 202110872325A CN 113572386 B CN113572386 B CN 113572386B
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- friction
- detection
- conductor
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a strip-shaped friction nano generator for monitoring broken teeth, which relates to the technical field of nano generators and comprises the following components: a base; the detection part comprises a first rotating shaft, a detection wheel, a conductive sliding ring and a friction conductor piece, wherein two ends of the first rotating shaft are fixed on the base through first supporting seats, the detection wheel and the conductive sliding ring are fixedly arranged on the first rotating shaft, the friction conductor piece is sequentially wound on the surface of the detection wheel along the axial direction of the first rotating shaft, and two ends of the friction conductor piece are connected with the conductive sliding ring; a second rotating shaft for fixing the gear to be detected, each tooth top of the gear to be detected being capable of contacting the friction conductor member fixed on the surface of the detection wheel during the detection; and the transmission part is used for realizing the linkage of the first rotating shaft and the second rotating shaft. The invention contacts the gear tooth top of the detected gear with the friction conductor in the detection process and generates an electric signal, thereby realizing the detection of the broken gear state of the detected gear.
Description
Technical Field
The invention relates to the technical field of nano generators, in particular to a strip-shaped friction nano generator for monitoring broken teeth.
Background
The gear transmission is widely applied to various fields such as aerospace, carrying engineering, agricultural engineering and the like as an important mechanical transmission mode. However, gears are generally used in sealed environments, such as transmission gears, and therefore, the gear is difficult to detect after tooth breakage, which further damages the whole transmission and causes more loss.
Therefore, the method has great practical value for monitoring the failure of broken teeth of the gear. Most of the existing gear failure monitoring needs to provide electric energy, energy waste is brought, meanwhile, the difficulty is increased for implementation of monitoring, the friction nanometer generator can generate electricity through a contact electrification and static induction principle, and the self-powered gear failure monitoring device is quite suitable for serving as a self-powered sensor for monitoring broken teeth failure of gears.
The existing friction nano generator can only be applied to a specific scene generally, and the redesign and manufacturing are often needed after the working scene is changed.
Therefore, how to provide a friction nano generator which has strong adaptability, can be self-powered and can be used for tooth breakage monitoring is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a strip-type friction nano-generator for monitoring broken teeth, which aims to solve one of the problems in the background art and detect broken teeth of a gear, so as to avoid secondary failure caused by broken teeth of the gear.
In order to achieve the purpose, the invention adopts the following technical scheme:
a strip-type friction nanogenerator for broken tooth monitoring, comprising:
a base;
the detection part comprises a first rotating shaft, a detection wheel, a conductive slip ring and a friction conductor, wherein two ends of the first rotating shaft are fixed on the base through first supporting seats, the first rotating shaft is rotatably connected with the first supporting seats, the detection wheel and the conductive slip ring are fixedly arranged on the first rotating shaft, the friction conductor is sequentially wound on the surface of the detection wheel along the axial direction of the first rotating shaft, and two ends of the friction conductor are connected with the conductive slip ring;
the second rotating shaft is used for fixing the detected gear, two ends of the second rotating shaft are fixedly connected with the base through second supporting seats respectively, the second rotating shaft is rotatably connected with the second supporting seats, the second rotating shaft is arranged in parallel with the first rotating shaft, and each tooth crest of the detected gear can be in contact with the friction conductor fixed on the surface of the detection wheel in the detection process;
and the transmission part is used for realizing linkage of the first rotating shaft and the second rotating shaft.
Further, the number of the friction conductors on the surface of the detection wheel along the axial direction thereof is equal to the number of the teeth of the detected gear, and the vertex radius of the tooth of the detected gear is equal to the axial distance of the friction conductors from the first rotating shaft.
Furthermore, the transmission part comprises a motor, a first transmission wheel and a second transmission wheel, the motor is connected with the second rotating shaft, the first transmission wheel is fixed on the first rotating shaft, the second transmission wheel is fixed on the second rotating shaft, and the first transmission wheel and the second transmission wheel are meshed with each other and used for ensuring that the first transmission wheel and the second transmission wheel are synchronous.
Further, the strip-shaped friction nanometer generator for monitoring broken teeth further comprises a coupler, and the coupler is used for connecting the motor and the second rotating shaft.
Furthermore, a plurality of grooves used for installing the friction conductors are arranged on the outer surface of the detection wheel in an axial array mode, and the number of the grooves is equal to that of the teeth of the detected gear.
Furthermore, the detection wheel comprises a shaft sleeve, a first baffle, a second baffle and a partition plate, the shaft sleeve is sleeved on the first rotating shaft, the first baffle and the second baffle are fixed at two ends of the shaft sleeve respectively, the number of the partition plate and the number of the teeth of the detected gear are equal, and a groove for installing the friction conductor is formed in one end, far away from the shaft sleeve, of the partition plate.
Further, the axial sectional shape of the friction conductor is circular.
Furthermore, the friction conductor piece comprises a conductive layer, a metal layer and a friction layer which are sequentially arranged from inside to outside.
According to the technical scheme, compared with the prior art, the strip-shaped friction nano-generator for monitoring broken teeth is provided, through the arrangement of the detection wheel on the first rotating shaft, the friction conductor part is arranged on the surface of the detection wheel, the detected gear is arranged on the second rotating shaft in a combined mode, the tooth top of the detected gear is in contact with the friction conductor part in the detection process and generates an electric signal, and therefore the detection of the broken teeth state of the detected gear is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a strip-type friction nano-generator for tooth breakage monitoring provided by the invention;
FIG. 2 is a top view of a strip-shaped friction nano-generator for tooth breakage monitoring provided by the invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of a state structure of the detecting wheel contacting with the gear to be detected according to the present invention;
FIG. 5 is a schematic view of a state structure of the detecting wheel and the detected gear separated according to the present invention;
FIG. 6 is a schematic view of the structure of the friction conductor and the detection wheel provided by the present invention;
FIG. 7 is a schematic structural view of a friction conductor provided by the present invention;
figure 8 the accompanying drawing is a cross-sectional view of an axial section of a friction conductor provided by the invention.
Wherein: 1 is a base; 2 is a first rotating shaft; 3 is a detection wheel; 31 is a shaft sleeve; 32 is a first baffle; 33 is a second baffle; 34 is a clapboard; 4 is a conductive slip ring; 5 is a friction conductor; 51 is a conductive layer; 52 is a metal layer; 53 is a friction layer; 6 is a second rotating shaft; 7 is a first supporting seat; 8 is a detected gear; 9 is a second supporting seat; 10 is a motor; 11 is a first driving wheel; 12 is a second driving wheel; 13 is a motor bracket; 14 is a coupling.
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 to 8, an embodiment of the present invention discloses a strip-type friction nano-generator for tooth breakage monitoring, including: the gear detection device comprises a base 1, a detection part, a second rotating shaft 6 for fixing a gear to be detected 8 and a transmission part.
The detection portion includes first axis of rotation 2, detect wheel 3, lead electrical slip ring 4 and friction conductor piece 5, the both ends of first axis of rotation 2 are all fixed in on base 1 through first supporting seat 7, first axis of rotation 2 rotates with first supporting seat 7 to be connected, it all sets up on first axis of rotation 2 to detect wheel 3 and lead electrical slip ring 4, friction conductor piece 5 is around locating the surface that detects wheel 3 along the axial of first axis of rotation 2 in proper order, and the both ends of friction conductor piece 5 are connected with electrical slip ring 4.
The second rotating shaft 6 is used for fixing the detected gear 8, the second rotating shaft 6 is parallel to the first rotating shaft 2, two ends of the second rotating shaft 6 are fixedly connected with the base 1 through second supporting seats 9 respectively, the second rotating shaft 6 is rotatably connected with the second supporting seats 9, and in the detection process, each tooth crest of the detected gear 8 can be in contact with the friction conductor 5 fixed on the surface of the detection wheel 3; wherein, preferably, the number of the friction conductor pieces 5 on the surface of the detection wheel 3 along the axial direction thereof is equal to the number of teeth of the detected gear 8, and the addendum circle radius of the detected gear 8 is equal to the axial distance between the friction conductor piece 5 and the first rotating shaft 2, so as to ensure that the friction conductor pieces 5 are in contact with the addendum of the detected gear 8.
The transmission portion is used for achieving linkage of the first rotating shaft 2 and the second rotating shaft 6, and specifically comprises a motor 10, a first transmission wheel 11 and a second transmission wheel 12, wherein the first transmission wheel 11 and the second transmission wheel 12 are identical in structure, the motor 10 is fixed on the base 1 through a motor support 13, the motor 10 is connected with the second rotating shaft 6 through a coupler 14, the first transmission wheel 11 is fixed on the first rotating shaft 2, the second transmission wheel 12 is fixed on the second rotating shaft 6, the motor 10 and the second transmission wheel 12 are respectively located at two ends of the second rotating shaft 6, and the first transmission wheel 11 and the second transmission wheel 12 are meshed with each other to ensure that the first transmission wheel 11 and the second transmission wheel 12 are synchronous, so that in the rotating process of the detection wheel 3 and the wheel 3 to be detected, tooth crests of each detected gear 8 can be in contact with corresponding friction conductor pieces 5.
In this embodiment, a plurality of grooves for installing the friction conductor 5 are arranged on the outer surface of the detection wheel 3 in a shaft array manner, the number of the grooves is equal to the number of teeth of the detected gear 8, and the length of each groove is greater than or equal to the thickness of the detected gear 8, so that the tooth top area of the detected gear 8 completely falls within the area of the friction conductor 5.
In other embodiments, the detection wheel 3 includes a shaft sleeve 31, a first baffle 32, a second baffle 33 and a partition 34, the shaft sleeve 31 is sleeved on the first rotating shaft 2, the first baffle 32 and the second baffle 33 are respectively fixed at two ends of the shaft sleeve 31, the number of teeth of the partition 34 and the detected gear 8 is equal, one end of the partition 34, far away from the shaft sleeve 31, is provided with a groove for mounting the friction conductor 5, one end of the partition 34, close to the shaft sleeve 31, is fixedly connected with the shaft sleeve 31, the length of the partition 34 is greater than or equal to the thickness of the detected gear 8, and it is achieved that the addendum area of the detected gear 8 completely falls within the area of the friction conductor 5.
In the above embodiment, the axial cross-sectional shape of the friction conductor 5 is circular, the friction conductor 5 includes a conductive layer 51, a metal layer 52 and a friction layer 53, which are sequentially disposed from inside to outside, wherein the conductive layer 51 is a conductive wire, and the friction layer 53 is a perfluoroethylene-propylene copolymer, and in a high temperature state, the rigidity of the friction conductor 5 decreases, that is, when the temperature is higher than the melting point of the metal layer 52, the shape of the friction conductor 5 can be changed to adapt to the structural requirements of different detection wheels 3, so that the purpose that one friction conductor 5 can adapt to different detection wheels 3 is achieved, and an electrical signal generated by the friction conductor 5 is transmitted through the conductive slip ring 4.
In the detection process of the broken teeth of the detected gear 8, when the detected gear 8 rotates, the tooth top of each tooth can be in contact with the friction conductor 5 arranged on the detection wheel 3 along the axial direction of the detection wheel 3, and according to the principles of contact electrification and electrostatic induction, each contact can generate a corresponding electric signal which is transmitted by the conductive slip ring 4; when the gear to be detected 8 is broken and fails, the tooth crest does not contact the friction conductor 5 at the position, so that the loss of the electric signal is generated at the moment, and the broken gear condition of the gear to be detected 8 is detected. The friction conductor 5 can be softened at high temperatures, i.e. temperatures higher than the melting point of the metal layer 52, which facilitates the removal of the friction conductor 5, thereby enabling the reuse and replacement of the friction conductor 5.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A bar friction nanogenerator for broken tooth monitoring, comprising:
a base;
the detection part comprises a first rotating shaft, a detection wheel, a conductive slip ring and a friction conductor, wherein two ends of the first rotating shaft are fixed on the base through first supporting seats, the first rotating shaft is rotatably connected with the first supporting seats, the detection wheel and the conductive slip ring are fixedly arranged on the first rotating shaft, the friction conductor is sequentially wound on the surface of the detection wheel along the axial direction of the first rotating shaft, and two ends of the friction conductor are connected with the conductive slip ring;
the second rotating shaft is used for fixing the detected gear, two ends of the second rotating shaft are respectively and fixedly connected with the base through second supporting seats, the second rotating shaft is rotatably connected with the second supporting seats, the second rotating shaft is arranged in parallel with the first rotating shaft, and each tooth crest of the detected gear can be in contact with the friction conductor fixed on the surface of the detection wheel in the detection process;
and the transmission part is used for realizing linkage of the first rotating shaft and the second rotating shaft.
2. The strip-type friction nanogenerator for broken tooth monitoring according to claim 1, wherein the number of the friction conductors on the surface of the detection wheel along the axial direction thereof is equal to the number of the teeth of the detected gear, and the radius of the addendum circle of the detected gear is equal to the axial distance between the friction conductor and the first rotating shaft.
3. The strip-type friction nanogenerator for broken tooth monitoring of claim 2, wherein the transmission part comprises a motor, a first transmission wheel and a second transmission wheel, the motor is connected with the second rotating shaft, the first transmission wheel is fixed on the first rotating shaft, the second transmission wheel is fixed on the second rotating shaft, and the first transmission wheel and the second transmission wheel are meshed with each other to ensure that the first transmission wheel and the second transmission wheel are synchronous.
4. The strip-shaped friction nanogenerator for broken tooth monitoring according to claim 3, further comprising a coupler, wherein the coupler is used for connecting the motor and the second rotating shaft.
5. The strip-type friction nanogenerator for broken tooth monitoring according to claim 1, wherein a plurality of grooves for installing the friction conductor are arranged on the outer surface of the detection wheel in an axial array manner, and the number of the grooves is equal to that of the teeth of the detected gear.
6. The strip-type friction nanogenerator for monitoring broken teeth according to claim 1, wherein the detection wheel comprises a shaft sleeve, a first baffle, a second baffle and a partition plate, the shaft sleeve is sleeved on the first rotating shaft, the first baffle and the second baffle are respectively fixed at two ends of the shaft sleeve, the number of teeth of the partition plate is equal to that of the detected gear, and one end, far away from the shaft sleeve, of the partition plate is provided with a groove for mounting the friction conductor.
7. The strip-shaped friction nanogenerator for broken tooth monitoring according to any one of claims 1 to 6, wherein the axial cross-sectional shape of the friction conductor is circular.
8. The strip-shaped friction nanogenerator for broken tooth monitoring according to claim 7, wherein the friction conductor comprises a conductive layer, a metal layer and a friction layer which are sequentially arranged from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872325.9A CN113572386B (en) | 2021-07-30 | 2021-07-30 | Strip-shaped friction nano generator for monitoring broken teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110872325.9A CN113572386B (en) | 2021-07-30 | 2021-07-30 | Strip-shaped friction nano generator for monitoring broken teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113572386A CN113572386A (en) | 2021-10-29 |
| CN113572386B true CN113572386B (en) | 2023-01-24 |
Family
ID=78169586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110872325.9A Active CN113572386B (en) | 2021-07-30 | 2021-07-30 | Strip-shaped friction nano generator for monitoring broken teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113572386B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170013512A (en) * | 2015-07-28 | 2017-02-07 | 성균관대학교산학협력단 | Electricity generating device using rack and pinion gear |
| CN110460261A (en) * | 2019-09-04 | 2019-11-15 | 东华大学 | A kind of gear engagement structure DC rotation friction nanometer generating device |
| CN111541393A (en) * | 2020-04-19 | 2020-08-14 | 季华实验室 | Flexible friction nano generator and passive tire monitoring system |
| CN111551363A (en) * | 2020-05-21 | 2020-08-18 | 青岛理工大学 | System and method for measuring friction of gear transmission tooth surface |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3650830B1 (en) * | 2018-11-08 | 2023-07-19 | Goodrich Actuation Systems SAS | Twin-disc tribometer capable of reciprocating and/or non-collinear motion |
-
2021
- 2021-07-30 CN CN202110872325.9A patent/CN113572386B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170013512A (en) * | 2015-07-28 | 2017-02-07 | 성균관대학교산학협력단 | Electricity generating device using rack and pinion gear |
| CN110460261A (en) * | 2019-09-04 | 2019-11-15 | 东华大学 | A kind of gear engagement structure DC rotation friction nanometer generating device |
| CN111541393A (en) * | 2020-04-19 | 2020-08-14 | 季华实验室 | Flexible friction nano generator and passive tire monitoring system |
| CN111551363A (en) * | 2020-05-21 | 2020-08-18 | 青岛理工大学 | System and method for measuring friction of gear transmission tooth surface |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113572386A (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5241180B2 (en) | A small slip ring that incorporates the technology of bringing the tip into contact with a fiber | |
| WO2013099008A1 (en) | Power generator | |
| JP3546866B2 (en) | Starting charging rotary electric machine for vehicles | |
| CN113572386B (en) | Strip-shaped friction nano generator for monitoring broken teeth | |
| JP5032471B2 (en) | Device for assisting movements that produce variable capacitance | |
| JP2008148453A (en) | Insulation ring and rotary electric machine | |
| US20200200215A1 (en) | Fractal structure for power-generation of bearing rotating vibration | |
| CN107968304A (en) | Communication device of wind driven generator slip ring and slip ring | |
| CN208028350U (en) | A kind of multilayer electrical brush group | |
| JP5873841B2 (en) | Tap selector | |
| CN215008867U (en) | Double-layer column type conductive slip ring | |
| CN213243075U (en) | Variable-pitch conductive slip ring | |
| CN101738311B (en) | Dynamic detection device for rotating component | |
| CN113161838A (en) | Tightness adjusting device for current collector carbon brush shell | |
| CN204760220U (en) | Rotary transformer | |
| KR101376622B1 (en) | Electric motor and electric vehicle having the same | |
| JP2004273406A (en) | Method of current collection without slippage | |
| CN217334620U (en) | Rotary power transmission device | |
| CN215221225U (en) | Tightness adjusting device for current collector carbon brush shell | |
| CN216121132U (en) | Collecting ring power supply structure | |
| CN112834213B (en) | Gearbox state monitoring system | |
| JP2016063628A (en) | Rotary electric machine | |
| CN205478960U (en) | Integrated sliding ring formula bearing arrangement of sensor | |
| CN110416852A (en) | Conductive shaft | |
| CN219144676U (en) | Slip ring structure assembly and precision electronic equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |