CN207036417U - Analysis harmonic gear motion transmission communications device is measured based on high speed camera - Google Patents
Analysis harmonic gear motion transmission communications device is measured based on high speed camera Download PDFInfo
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- CN207036417U CN207036417U CN201720869885.8U CN201720869885U CN207036417U CN 207036417 U CN207036417 U CN 207036417U CN 201720869885 U CN201720869885 U CN 201720869885U CN 207036417 U CN207036417 U CN 207036417U
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Abstract
Experimental bench, firm banking, AC servo motor, flange-face coupling, single-stage harmonic drive decelerator, ring flange, calibration substrate, scaling board, industrial lens, annular light source and high-speed industrial camera are included based on high speed camera measurement analysis harmonic gear motion transmission communications device, device the utility model discloses one kind；Firm banking is fixed on the experimental bench, and AC servo motor is fixed on firm banking；AC servo motor is connected by flange-face coupling and drives single-stage harmonic drive decelerator, and single-stage harmonic drive decelerator is fixed on experimental bench；Single-stage harmonic drive decelerator, ring flange, calibration substrate and scaling board are connected with one heart, and high-speed industrial camera is fixed on experimental bench by a camera fixing support.The moment high-resolution that the utility model employs high-speed industrial camera is taken pictures ability, accurately record calibration point at different moments position the characteristics of, realize and the accurate measurement of harmonic speed reducer harmonic vibration characteristic and anharmonic wave vibration characteristics analyzed.
Description
Technical field
Positioning and the vibration control technology field of flexible structure are the utility model is related to, more particularly to one kind is based on high speed phase
Machine measurement analysis harmonic gear motion transmission communications device.
Background technology
With the high speed development of current space flight and aviation cause, the mankind are increasing to the scope of space space exploration, distance
More and more remote, so as to also drastically be lifted to the requirement of the various aspects of performance of spacecraft, and the breakthrough of problems is to aerospace industry
Development play very important effect, therefore high, the large quantities of research people of the attention degree to problems in global range
Member has carried out the research of correlation to it.
Wherein more distinct issues are the extensive application of flexible material, and flexible material is by the complexity of space environment
Influence, make to realize that the control of set functional requirement becomes difficulty further.Flexible structure material has small damping, lightweight and low
The features such as modal frequency, requirement of the Future Spacecraft to material can be met well, so to the effective of flexible material
Control be determine apply flexible material spacecraft can normal operation important step, wherein being shaken to the dynamic of flexible material
The control of dynamic characteristic is main.Therefore, there is the characteristic of motion transmission using flexbile gear in harmonic speed reducer, measure and divide
Analyse the motion transmission characteristic of harmonic speed reducer, you can draw the dynamic vibration characteristics of flexbile gear.
In the range of prior art, the dynamic vibration characteristics of flexible material are studied, are carried out more using contact type measurement sensor
Dynamic measurement, analysis, such as acceleration transducer, piezoceramic transducer etc., though acceleration transducer is with small volume and again
Light feature is measured, with measurement space acceleration, can comprehensively accurately reflect the kinetic property of object, but the limited precision of its measurement
And be easy to because external shock interference is damage, failed, while because its contact type measurement can produce additional mass to flexible material,
Influence the measurement of result.
Therefore, measured from the very high high-speed industrial camera of measurement accuracy, analysis harmonic wave can be accurately measured
The motion transmission characteristic of decelerator, while supplemented by Wireless Acceleration Sensor measuring system.Again because present apparatus measurement is different
Under additional mass, the motion transmission characteristic of harmonic gear, so, the quality of Wireless Acceleration Sensor node is to measurement result shadow
Sound is very faint.
Utility model content
In order to overcome shortcoming and deficiency existing for prior art, the utility model provides a kind of based on high speed camera measurement point
Harmonic gear motion transmission communications device is analysed, the progressive scan sensor and global shutter of high-speed industrial camera are employed, in pole
The advantages of information in what comes into a driver's can be clearly recorded in short time, realize and the drive characteristic of harmonic gear in harmonic speed reducer is carried out
Real-time dynamically recording, to analyze the motion transmission characteristic of harmonic gear exactly.
In order to solve the above technical problems, the utility model provides following technical scheme：One kind is based on high speed camera measurement point
Analysis harmonic gear motion transmission communications device, including experimental bench, firm banking, AC servo motor, flange-face coupling, single-stage are humorous
Ripple gearing speed-reducer, ring flange, calibration substrate, scaling board, industrial lens, annular light source and high-speed industrial camera；
The firm banking is fixed on the experimental bench, and AC servo motor is fixed on firm banking；The friendship
Flow servo motor is connected by the flange-face coupling and drives the single-stage harmonic drive decelerator, the single-stage harmonic drive
Decelerator is fixed on the experimental bench；
Single-stage harmonic drive decelerator, ring flange, calibration substrate and the scaling board connect with one heart, the single-stage harmonic
Gearing speed-reducer passes through calibration substrate and scaling board synchronous axial system described in the flange dish driving；
The high-speed industrial camera is fixed on the experimental bench by a camera fixing support；The industrial lens are just
To the scaling board, and it is fixed on described high-speed industrial camera one end；The annular light source is set around industrial lens, and industry
Camera lens annular light source and scaling board are concentric.
Further, in addition to Wireless Acceleration Sensor node, radio network gateway, encoder and industrial computer；Its
In
The Wireless Acceleration Sensor node installation is on the calibration substrate, for measuring the acceleration of calibration substrate
Degree, and corresponding acceleration information is transmitted to the industrial computer by radio network gateway；
The industrial computer is used to receiving and handling the Wireless Acceleration Sensor and high-speed industrial camera is sent
The data to come over；
The encoder is integrated on AC servo motor, for measuring angular displacement and the angular speed of AC servo motor,
Handled industrial computer is input to after the encoded device resolving card of the code device signal of measurement.
Further, the Wireless Acceleration Sensor quantity is 2.
Further, in addition to safety guard plate, the safety guard plate are fixed on the experimental bench, and the fixation
Base, AC servo motor, flange-face coupling, single-stage harmonic drive decelerator, ring flange, calibration substrate and scaling board are all provided with
It is placed in the inside of safety guard plate.
Further, the experimental bench includes T-slot cast iron platform, T-slot bolt, solid square steel profile frame, sheet material
And fixing bolt, T-slot cast iron platform is poured by cement to be horizontally fixed on ground with foundation bolt, solid square steel profile
Frame is fixedly mounted on T-slot cast iron platform medium position using multiple symmetrical uniform T-slots with bolt, and sheet material passes through fixed spiral shell
Bolt is fixedly mounted on solid square steel profile frame.
Further, the firm banking includes bottom plate, side plate, supporting plate, limit support board I and limit support board II,
Bottom plate one end fixed side, the other end fix limit support board II, and supporting plate is fixed on side plate, and limit support board I is fixed on support
On plate；
The AC servo motor is arranged on the supporting plate of firm banking, its output end and the spacing hole of limit support board I
With one heart, coincidence assembling, the redundancy positioning to AC servo motor is formed；Bottom plate is fixed on the sheet material of experimental bench by nut bolt
On；
The single-stage harmonic drive decelerator is arranged on the limit support board II of firm banking, keeps single-stage harmonic drive
The arbor of decelerator and AC servo motor is concentric.
After adopting the above technical scheme, the utility model at least has the advantages that：
(1) the utility model AC servo motor has the very wide range of speeds, can realize that wider array of oscillating region is surveyed
Amount analysis, while servomotor can be controlled to be rotated with the different characteristics of motion easily, such as uniform rotation, even speed change rotate,
Phase step type rotation etc.；
(2) output shaft of single-stage harmonic drive decelerator of the present utility model is directly connected to scaling board, moves harmonic gear
State drive characteristic almost nondestructively can be shown through scaling board, and the use of high-speed industrial camera improves it and scaling board is moved
The measurement precise degrees of state drive characteristic, the precision of each transmission link is controlled, realize that final result can be measured well
Analysis；
(3) the utility model has very strong replaceability, can change the calibration substrate of different quality, realize different loads
In the case of, the dynamic characteristic measuring analysis of Harmonic Gears, and use planetary reduction gear instead and slow down instead of single-stage harmonic drive
Device measures analysis；
(4) application of the utility model Wireless Acceleration Sensor, Wireless Acceleration Sensor node can and scaling board
Synchronous axial system, and dynamic measures its amount of acceleration, realizes that the dynamic that Harmonic Gears are together measured with high-speed industrial camera is special
Property, improve the measurement accuracy of device.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera
Figure；
Fig. 2 is the scaling board side that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera
Direction view；
Fig. 3 is the top view that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera；
Fig. 4 is the side view that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera；
Fig. 5 is the firm banking that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera
Schematic diagram；
Fig. 6 is the single-stage harmonic that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera
The isometric view of gearing speed-reducer；
Fig. 7 is experimental bench that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera etc.
Axonometric drawing；
Fig. 8 is the calibration substrate that the utility model measures analysis harmonic gear motion transmission communications device based on high speed camera
Figure.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine, the application is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in Figures 1 to 8, the utility model provides a kind of based on high speed camera measurement analysis harmonic gear motion transmission
Communications device, main body include telecontrol equipment body part, cast iron platform and the solid square that servomotor is formed with harmonic wave speed reducing machine
The experiment porch part and monocular camera machine vision measuring and analysis system part of steel profile frame composition, are carried out to each section below
It is described in detail.
Telecontrol equipment body part：AC servo motor 2, it is fixedly mounted on the firm banking 1 for having attached to experimental bench 12
On, drive single-stage harmonic drive decelerator 5 to rotate by flange-face coupling 4, single-stage harmonic drive decelerator 5 passes through ring flange 6
Drive calibration substrate 8 and the synchronous axial system of scaling board 14；The base of AC servo motor 2 is located in the middle part of the width of experimental bench 12, with
At a distance of 155mm, the motor back side and the side of experimental bench 12 overlap the working face of experimental bench 12, firm banking 1 by transverse direction using distance as
85mm is uniform 5, M12 nut bolt combination array of the longitudinal direction with distance for uniform 2 of 150mm, is fixed on the plate of experimental bench 12
On material 122；The output shaft axis collinear of the input shaft axis of single-stage harmonic drive decelerator 5 and AC servo motor 2, two axial ends face
Two axles are fixedly connected at a distance of 16mm, and with flange-face coupling 4, with half between the output shaft of AC servo motor 2 and flange-face coupling 4
Round end key I connects, and flange-face coupling 4 and single-stage harmonic drive decelerator 5 input between centers round end key connection；
The firm gear 52 of single-stage harmonic drive decelerator 5 is fixedly mounted on inside it with one heart, and the wave producer 54 of rotation passes through
Flexible bearing 53 makes flexbile gear 51 that cycle period deformation occur, and flexbile gear 51 is intermeshed using its external tooth and the internal tooth of firm gear 52, real
Its existing cyclomorphosis is converted to cycle rotation and very big gearratio；The structure of single-stage harmonic drive decelerator 5 is as shown in Figure 6；
Calibration substrate 8, scaling board 14, the output shaft of ring flange 6 and single-stage harmonic drive decelerator 5 are installed with one heart, are marked
14 non-demarcation face of fixed board passes through uniform 6 of path (PCD 80mm) and the M4 bolt weights of big uniform 12 of warp (PCD 320mm)
Conjunction is fixed on the end face of calibration substrate 8, and the M6 bolts of uniform 6 of the large end face of ring flange 6 (PCD 110mm), which overlap, is fixed on mark
Determine the other end of substrate 8, the output shaft intersection of ring flange 6 and single-stage harmonic drive decelerator 5 is 40mm, single-stage harmonic
Connected between the output shaft of gearing speed-reducer 5 and ring flange 6 with cup head key II and holding screw.
In the present embodiment, AC servo motor 2 rises that company is grand to open up numerical control board from Guangzhou, and main shaft fundamental frequency is watching for 50Hz
Take motor, model TH08-3-9.5-1.5/2.2-4-1500, power 1.5kW, torque 9.5N.m；Cup head key I selects
With model key C 8 × 7 × 45CB1096-1979, common round end key selects model key 5 × 5 × 20CB1096-1979,
Holding screw selects interior hexagonal flush end holding screw, and model standard is GB/T 77-2000-M8 × 25, and cup head key II is selected
CB1096-1979 of model key C 10 × 8 × 40, the selection standard part of flange-face coupling 4, model GY2 shaft couplings J1
24x38/J1 16x30；Single-stage harmonic drive decelerator 5 is passed from the XB1 single-stage harmonics of Beijing Zhong Jikemei harmonic drives company
Dynamic decelerator, type 100, speed is than being 160.
Experiment porch part：The main body of experimental bench 12 is by T-slot cast iron platform 125, solid square steel profile frame 123 and sheet material
122 are formed；T-slot width (basic size) A of T-slot cast iron platform 125 is 18mm, and T-slot spacing p is 100mm；It is solid
The transverse section of section material of square steel section material frame 123 is 50mm × 50mm, and its profile length formed is respectively：1250mm, 550mm and
600mm；What is be connected with each other is fixed using high-strength bolt between the two, T-slot cast iron platform 125 and solid square steel profile frame 123
Between connected with M16 T type grooves with nut bolt, laterally using 150mm uniform 6 as spacing, longitudinally using 100mm as spacing uniform 5
It is individual, M8 coarse thread bolt connections are used between solid square steel profile frame 123 and sheet material 122, laterally using 150mm uniform 9 as spacing, are indulged
To using 200mm uniform 4 as spacing, to ensure that under huge effect of vibration experimental bench 12 remains to keep stable；Experimental bench 12
Structure it is as shown in Figure 7.
In the present embodiment, T-slot platform of the T-slot cast iron platform 125 from Botou City Li Sheng Foundry Inc.；Solid square steel
Section material frame 123 material Q235, is consolidated each adjacent square steel section bar using welding manner from the cold drawn square steel of Xing Yu square steel company
Fixed connection；Sheet material 122 plays the cut deal of Rui Jin category Materials Co., Ltd from Shandong, the size of cut deal for 1250mm × 650mm ×
20mm。
Safety guard plate 3 is arranged on AC servo motor 2 to the outside between calibration substrate 8, wireless during to prevent rotating at a high speed
The object such as acceleration transducer or bolt flies out, and accidentally injures surrounding people, while more preferably effectively can be sent out using annular light source 13
The illumination shot out, high-speed industrial camera 10 is set to obtain high-quality photos；
The device is measured using high speed camera 10 to loading disk of the harmonic speed reducer output with mark, measures harmonic wave
For decelerator in the case of different input speeds, and in the case of different inertia loads, the resonance harmonic characterisitic of output and gap are special
Influence and analysis of the property to output loading temporal properties.
Monocular camera machine vision measuring and analysis system part：High-speed industrial camera 10 and industrial lens 9 form measurement analysis system
System major part, two Wireless Acceleration Sensor nodes 7 and radio network gateway 16 (base station) composition measuring and analysis system assisted parts
Point；
Industrial lens 9, annular light source 13 and scaling board 14 are concentric, the calibration point of 10 face scaling board of high-speed industrial camera 14
Plane, it is fixed on through camera fixing support 11 on experimental bench 12, two Wireless Acceleration Sensor nodes 7 are symmetrically mounted on demarcation
The both sides of substrate 8；
High-speed industrial camera 10, it is symmetrically and fixedly mounted to have attached to the camera fixing support of experimental bench 12 by M4 bolts
On 11, experimental bench is fixed in the M8 nut bolts combination that wherein camera fixing support 11 is 50mm by symmetrical each uniform spacing
On 12 sheet material 122, annular light source 13 is indirectly fixed to camera fixing support 11 by M4 bolts and two pieces of triangle extension boards
Two camera frame riser front end faces, and annular light source 13, industrial lens 9 and the three of scaling board 14 is installed with one heart, industrial lens 9
End face distance scaling board 14 is 250mm；Two Wireless Acceleration Sensor nodes 7 are symmetrically mounted on the side plane of calibration substrate 8,
Two sensor node bottom surfaces are at a distance of 340mm；Safety guard plate 3 is symmetrically mounted on the width center line of experimental bench 12, is located at
Length 660mm, width 430mm, highly it is 470mm outside firm banking 1, thickness 2mm, thermal vias size isIts end face of end face distance industrial lens 9 is 160mm.
In the present embodiment, high-speed industrial camera 10 reaches the high-speed industrial camera of high-tech information technology companies from Hefei monarch,
Thousand wolf 5KF10 of model, sensitive chip type are COMS, and sensitive chip size is 17.92mm × 12.04mm, pixel dimension
For 14 μm of 14 μ m, resolution ratio (pixel) is 1280 × 860, and pixel locating depth is 10bit, and shutter is global shutter；Industrial lens
It is from the camera lens of company of Ricoh, model FL-CC0814-2M, focal length 8mm, length 44mm, appearance and sizeC-type interface, picture dimension are 2/3 ＂, and maximum caliber ratio is 1：1.4；Wireless Acceleration Sensor section
Point 7 and its supporting radio network gateway (base station) select the sensor of Beijing Bi Chuan scientific ＆ technical corporation, model A302, and node power consumption is
25mA, air transfer rate are 250K BPS, and the size of main body is 60mm × 52mm × 33mm；Annular light source 13 selects Dongguan
LeEco automates the annular shadow-free light source of scientific ＆ technical corporation, model LTS-HPR180-B/G/W, and external diameter isInternal diameter
ForAppearance and size is W196mm × H25.5mm.
In addition, the utility model device also includes encoder 15, radio network gateway 16 (base station) and industrial computer 17, institute
Wireless Acceleration Sensor node installation is stated on the calibration substrate, for measuring the acceleration of calibration substrate, and is incited somebody to action corresponding
Acceleration information transmitted by radio network gateway to the industrial computer；The industrial computer is used to receiving and handling institute
State Wireless Acceleration Sensor and data that high-speed industrial camera sends over；The encoder is integrated in AC servo motor
On, for measuring angular displacement and the angular speed of AC servo motor, after the encoded device of the code device signal of measurement is resolved into card
Industrial computer is input to be handled.
A kind of application method that analysis harmonic gear motion transmission communications device is measured based on high speed camera of the utility model,
Specifically comprise the following steps：
The AC servo motor 2 that the first step rotates at a high speed drives single-stage harmonic drive decelerator 5, subtracts single-stage harmonic drive
The output shaft of fast device 5 produces vibration characteristics, then is amplified by scaling board in favor of being identified, recording by high-speed industrial camera 10；
Second step high-speed industrial camera 10 is shot with the speed of 1000 frame even more high per second, is indicated on record scaling board 14
The positional information of point, then the position picture of all index points is passed into industrial computer 17；
Acceleration information measured by it is passed through what is matched by the 3rd Wireless Acceleration Sensor node 7 of step two in real time
After radio network gateway (base station) receives, it is transferred in industrial computer 17 with pending；
Index point information in the corresponding algorithm process picture of 4th step industrial computer 17 application, and radio acceleration
Sensor node obtains information, analysis AC servo motor 2 at the uniform velocity, a variety of situations such as even speed change and the irregular change of speed
Under, the physics such as gear dynamic harmonic characterisitic, anharmonic wave property between the inside flexbile gear 51 of single-stage harmonic drive decelerator 5 and firm gear 52
Characteristic.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is understood that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of etc.
The change, modification, replacement and modification of effect, the scope of the utility model are limited by appended claims and its equivalency range.
Claims (6)
1. one kind based on high speed camera measurement analysis harmonic gear motion transmission communications device, it is characterised in that including experimental bench,
Firm banking, AC servo motor, flange-face coupling, single-stage harmonic drive decelerator, ring flange, calibration substrate, scaling board, work
Industry camera lens, annular light source and high-speed industrial camera；
The firm banking is fixed on the experimental bench, and AC servo motor is fixed on firm banking；The exchange is watched
Take motor to connect by the flange-face coupling and drive the single-stage harmonic drive decelerator, the single-stage harmonic drive slows down
Device is fixed on the experimental bench；
Single-stage harmonic drive decelerator, ring flange, calibration substrate and the scaling board connect with one heart, the single-stage harmonic drive
Decelerator passes through calibration substrate and scaling board synchronous axial system described in the flange dish driving；
The high-speed industrial camera is fixed on the experimental bench by a camera fixing support；The industrial lens face institute
Scaling board is stated, and is fixed on described high-speed industrial camera one end；The annular light source is set around industrial lens, and industrial lens
Annular light source and scaling board are concentric.
2. existed as claimed in claim 1 based on high speed camera measurement analysis harmonic gear motion transmission communications device, its feature
In, in addition to Wireless Acceleration Sensor node, radio network gateway, encoder and industrial computer；Wherein
The Wireless Acceleration Sensor node installation is on the calibration substrate, for measuring the acceleration of calibration substrate, and
Corresponding acceleration information is transmitted to the industrial computer by radio network gateway；
The industrial computer is used to receiving and handling the Wireless Acceleration Sensor and high-speed industrial camera sends over
Data；
The encoder is integrated on AC servo motor, for measuring angular displacement and the angular speed of AC servo motor, will be surveyed
Industrial computer is input to after the encoded device resolving card of code device signal of amount to be handled.
3. existed as claimed in claim 2 based on high speed camera measurement analysis harmonic gear motion transmission communications device, its feature
In the Wireless Acceleration Sensor quantity is 2.
4. as claimed in claim 1 or 2 based on high speed camera measurement analysis harmonic gear motion transmission communications device, its feature
It is, in addition to safety guard plate, the safety guard plate are fixed on the experimental bench, and the firm banking, exchange are watched
Motor, flange-face coupling, single-stage harmonic drive decelerator, ring flange, calibration substrate and scaling board is taken to may be contained within protecting safely
The inside of shield.
5. as claimed in claim 1 or 2 based on high speed camera measurement analysis harmonic gear motion transmission communications device, its feature
It is, the experimental bench includes T-slot cast iron platform, T-slot bolt, solid square steel profile frame, sheet material and fixing bolt,
T-slot cast iron platform is poured by cement to be horizontally fixed on ground with foundation bolt, and solid square steel profile frame is using multiple right
Uniform T-slot is claimed to be fixedly mounted on T-slot cast iron platform medium position with bolt, sheet material is fixedly mounted on by fixing bolt
On solid square steel profile frame.
6. existed as claimed in claim 1 based on high speed camera measurement analysis harmonic gear motion transmission communications device, its feature
In the firm banking includes bottom plate, side plate, supporting plate, limit support board I and limit support board II, bottom plate one end affixed side
Plate, the other end fix limit support board II, and supporting plate is fixed on side plate, and limit support board I is fixed on supporting plate；
The AC servo motor is arranged on the supporting plate of firm banking, the spacing hole of its output end and limit support board I is concentric,
Coincidence assembling, form the redundancy positioning to AC servo motor；Bottom plate is fixed on the sheet material of experimental bench by nut bolt；
The single-stage harmonic drive decelerator is arranged on the limit support board II of firm banking, keeps single-stage harmonic drive to slow down
The arbor of device and AC servo motor is concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720869885.8U CN207036417U (en) | 2017-07-18 | 2017-07-18 | Analysis harmonic gear motion transmission communications device is measured based on high speed camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720869885.8U CN207036417U (en) | 2017-07-18 | 2017-07-18 | Analysis harmonic gear motion transmission communications device is measured based on high speed camera |
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| Publication Number | Publication Date |
|---|---|
| CN207036417U true CN207036417U (en) | 2018-02-23 |
Family
ID=61464514
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| CN201720869885.8U Expired - Fee Related CN207036417U (en) | 2017-07-18 | 2017-07-18 | Analysis harmonic gear motion transmission communications device is measured based on high speed camera |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114760396A (en) * | 2022-03-24 | 2022-07-15 | 杭州海康威视数字技术股份有限公司 | Image capturing apparatus |
| DE102022105681A1 (en) | 2022-03-10 | 2023-09-14 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Method for determining vibration of a ventilation system |
| CN117367791A (en) * | 2023-12-08 | 2024-01-09 | 珠海市钧兴机电有限公司 | Gear testing assembly and testing device |
-
2017
- 2017-07-18 CN CN201720869885.8U patent/CN207036417U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022105681A1 (en) | 2022-03-10 | 2023-09-14 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Method for determining vibration of a ventilation system |
| CN114760396A (en) * | 2022-03-24 | 2022-07-15 | 杭州海康威视数字技术股份有限公司 | Image capturing apparatus |
| CN114760396B (en) * | 2022-03-24 | 2023-09-29 | 杭州海康威视数字技术股份有限公司 | Image photographing device |
| CN117367791A (en) * | 2023-12-08 | 2024-01-09 | 珠海市钧兴机电有限公司 | Gear testing assembly and testing device |
| CN117367791B (en) * | 2023-12-08 | 2024-02-06 | 珠海市钧兴机电有限公司 | Gear testing assembly and testing device |
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Granted publication date: 20180223 Termination date: 20190718 |