CN203053919U - Testing device for vibrating dynamic characteristic transfer tests of trees - Google Patents
Testing device for vibrating dynamic characteristic transfer tests of trees Download PDFInfo
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- CN203053919U CN203053919U CN 201220523695 CN201220523695U CN203053919U CN 203053919 U CN203053919 U CN 203053919U CN 201220523695 CN201220523695 CN 201220523695 CN 201220523695 U CN201220523695 U CN 201220523695U CN 203053919 U CN203053919 U CN 203053919U
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Abstract
The utility model relates to a testing device, specifically relates to a device for testing vibrating dynamic characteristic transfer tests of trees and belongs to the technical field of testing agricultural and forestal fruit tree harvesting equipment. The testing device comprises a fixing device, a vibration excitation device, a vibration acceleration testing device and a vibration displacement testing device. During testing, the bottom end of the trunk of a sample tree is placed in the hole of a base and the trunk is clamped by a clamping mechanism; the vibration excitation device is selected, a vibrating motor or a vibration exciter is fixed in the vibration excitation point position of the sample tree, and the vibration excitation point position is adjustable; analogue signals acquired by an acceleration sensor and a laser displacement sensor are converted in data type through USB (Universal Serial Bus) data acquisition equipment and then input into a computer; the positions of the acceleration sensor and the laser displacement sensor are set so that vibration response values of different points of the sample tree can be obtained; then the transfer characteristic of dynamic response of the tree is obtained through data processing; and therefore, certain basis is provided for designing higher-efficiency harvesting machinery.
Description
Technical field
The utility model relates to a kind of proving installation, is used for the device that test trees vibrational system dynamic perfromances (frequency, phasing degree, amplitude, acceleration etc.) are transmitted, and belongs to the agriculture and forestry fruit tree testing of equipment technical field of gathering.
Background technology
Modern woods fruit industry is the important component part of modern agriculture and forestry, and the operation of gathering is the important step in the woods fruit industry; The height of its efficient of gathering has determined woods fruit Industrial economic benefit.At present, external main woods fruit producing country has generally all realized the woods mechanization of really gathering, the operation of really gathering of domestic woods progressively is tending towards mechanization, and trees vibration dynamic perfromance transfer study has significant meaning to improving fruit harvesting efficient, domestic research in this regard is very few, therefore, to the accurate assurance that the trees dynamic perfromance is transmitted, lay a good foundation for designing more high efficiency picker system.
Summary of the invention
The purpose of this utility model is: at really the gather operation and improve really the gather actual demand of efficient of woods of modern woods, proposed a certain position of a kind of exciting trunk, the trees vibration dynamic perfromance of the multinomial test functions such as spectral characteristic of the geometric locus of the dynamic characteristic parameter (frequency, phasing degree, amplitude, acceleration etc.) of the three-dimensional response of difference, trunk forced vibration responsing center and side shoot at different levels response is transmitted experiment test device on the test trees.
In order to achieve the above object, trees of the present utility model vibration dynamic perfromance is transmitted experiment test device and is comprised: exciting device, stationary installation, and vibration-testing apparatus; Described exciting device refers to provide different excited frequencies to produce the device of different exciting forces to the sample tree in process of the test, vibrating motor or vibrator all can produce exciting force, if select vibrating motor for use, should supportingly select for use frequency converter to regulate excited frequency, wherein vibrating motor is fixed on the trunk by grip block, if select vibrator (electrodynamic type vibrator) for use, answer supporting signal generator and the power amplifier selected for use, by changing the signal that signal generator sends, comprise sinusoidal signal, function signal, pulse signal etc., can obtain the exciting force of multi-form and different frequency, vibrator acts on the trunk by the exciting connecting rod, not only guarantees the transmission of exciting force but also reduce greatly being swashed the additional constraint of trees; Described stationary installation refers to fix and clamp the device of sample tree in process of the test, comprise base and clamp system, the effect of base is fixed sample tree bottom, and guarantee in process of the test, not produce any movement, clamp system is leading screw bolt clamp system, by the detachable sample tree of rotary handle; If the outdoor tree experiment of living then need not stationary installation; Described vibration-testing apparatus involving vibrations accelerating testing device and vibration displacement proving installation, the vibration acceleration proving installation refers to the device of specimen tree difference, different directions vibration acceleration in experimentation, comprises piezoelectric acceleration sensor, charge amplifier, usb data collector (A/D converter), notebook computer and vibration test system software; The vibration displacement proving installation refers to that specimen is set the device that certain puts vibration displacement in experimentation, comprises laser displacement sensor, usb data vasculum, 12V stabilized voltage supply and data acquisition software.
During test, sample tree trunk bottom places in the hole of base, adopt clamp system that trunk is clamped, further stablize trunk in the space with several dowels insertion trunk bottoms and side, hole, select exciting device for use, vibrating motor or vibrator are fixed on the exciting point position that sample is set, exciting point position is adjustable, the simulating signal that acceleration transducer and laser displacement sensor are gathered, by usb data collecting device translation data type input computer, vibration test system software or data acquisition software are analyzed the signal that collects, set the position of acceleration transducer and laser displacement sensor, and degree of will speed up sensor is fixed on the point position, displacement transducer is fixed on setting position, can record the vibratory response value of sample tree difference, handles by data, thereby obtain the transmission characteristic of trees dynamic response, for the more high efficiency machinery of gathering of design provides certain foundation.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 (a) is structural representation of the present utility model (b).
Fig. 2 is the utility model embodiment one structural representation.The structural representation of indoor sample tree vibration displacement proving installation.
Fig. 3 is the utility model embodiment two structural representations.The structural representation of indoor sample tree vibration acceleration proving installation.
Fig. 4 is the outdoor tree vibration experiments proving installation figure that lives of the utility model.
Embodiment
Embodiment one
Present embodiment is that trees vibration dynamic perfromance is transmitted experiment test device, its major function is the test of finishing the dynamic characteristic parameter (frequency, phasing degree, amplitude, acceleration etc.) of the three-dimensional response of difference on the trees, obtains the rule that trees vibration dynamic perfromance is transmitted.Its structure as Fig. 1 (a) (b) shown in, figure (a), figure (b) has selected different exciting devices respectively for use, wherein the exciting device of figure (a) comprises signal generator 1, power amplifier 2 and vibrator 3, the exciting device of figure (b) comprises frequency converter 1 (1), pulley mechanism 2 (1) and vibrating motor 3 (1), proving installation also comprises stationary installation 4, acceleration transducer 5, charge amplifier 9, usb data collector 11 (A/D converter), laser displacement sensor 6,12V stabilized voltage supply 8, usb data vasculum 10 and displacement has been installed, the notebook computer 12 of acceleration information acquisition software, laser displacement sensor 6 are installed on the tripod 7.
When the specimen tree is subjected to the different frequency exciting at the trunk place, but specimen tree trunk position differing heights, the vibration amplitude of different directions or dynamic displacement, the vibration displacement proving installation as shown in Figure 2, the bottom of sample tree vertically is placed in the hole of base 4-3, and several dowels 4-4 is filled in the space of trunk bottom and side, hole, sample tree lower end is fixedly clamped, the trunk of leading screw bolt clamp system 4-2 clamps, the size adjustment rotary handle 4-1 of trunk portion diameter per sample, clamped until the sample tree, 12V stabilized voltage supply 8 power supply laser displacement sensors 6, laser displacement sensor is fixed on the tripod 7, by regulating height and the angle of tripod, can specimen set differing heights, the vibration displacement of different directions, usb data vasculum 10 is connected with notebook computer 12 by the usb data line, vibrating motor 3 (1) is fixed on the exciting point position of the sample tree of test setting, in order to reduce the vibrating motor deadweight to the influence of test result, so designed pulley mechanism 2 (1) as shown in the figure, in the test process, by regulating frequency converter 1 (1), the vibration displacement of sample tree under the test different frequency, after the end of test (EOT), with the signal that collects, by data acquisition software analysis and processing, the curve map of vibration displacement and time can be shown intuitively, and amplitude size and the vibration phase angle of vibration displacement can be shown.
Embodiment two
Stationary installation according to embodiment one described test macro, sample tree vibration acceleration proving installation as shown in Figure 3, vibrator 3 is by exciting connecting rod 3-1 effect trunk exciting point place, after the signal of signal generator 1 amplifies by power amplifier 2, produce multi-form (sinusoidal signal via vibrator 3, pulse signal, function signal etc.) and the exciting force of different frequency, acceleration transducer 5 links to each other with the signal sampling channel of charge amplifier 9 by the adapted data line, select the charge amplifier of different passages for use according to test required acceleration number of sensors, charge amplifier is remembered this computer 12 by usb data collector 11 (A/D converter) with the input sum signal that collects, because sensor can not be directly installed on trunk or the branch, so it is light to have processed a series of materials, ganoid wooden unit, earlier with sensor by being bolted on the wooden unit, direction according to the required test point of test, wooden unit is fixed on the test point of trunk or branch by hot melt adhesive, can study different paths transmission characteristic simultaneously, as figure path I, path II and path III, in the test process, by changing the signal that signal generator 1 sends, obtain under the different exciting forces, the vibration acceleration of trunk or each test point of branch, after the end of test (EOT), by vibration test system software the signal that collects is handled and analyzed, can obtain the acceleration time history plot of each test point on trunk or the branch, each test point spectrum analysis figure, movement locus figure etc., can mark peak value in the curve map, peak-to-peak value, data such as effective value, the data that obtain can derive by EXCEL, are convenient to editor and use.
Embodiment three
The outdoor test that trees vibrations dynamic perfromance is transmitted experiment test device as shown in Figure 4, the eccentric block formula vibrating motor 2 that is carried by vibration harvester 1 provides exciting force, other implementation step is identical with embodiment one, embodiment two.
It is many that this trees vibration dynamic perfromance is transmitted the experiment test device content measurement, during test, displacement transducer and acceleration transducer test signal are transferred in the computing machine, automatically handle by analysis software, directly show test point vibration displacement, the time dependent performance parameter family curve of vibration acceleration, with diagrammatic form with the test report printout.This enforcement trees vibration dynamic perfromance is transmitted the experiment test device design and is met relevant national standard and iso standard.Its performance parameter is as follows:
In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (3)
1. a trees vibration dynamic perfromance is transmitted experiment test device, it is characterized in that being made up of exciting device, stationary installation, vibration displacement proving installation and vibration acceleration proving installation.
2. transmit experiment test device according to the described trees vibration of claim 1 dynamic perfromance, it is characterized in that: vibration displacement proving installation connected mode: displacement transducer, 12V stabilized voltage supply, usb data vasculum and notebook computer are linked in sequence; Vibration acceleration proving installation connected mode: acceleration transducer, charge amplifier, usb data collector and notebook computer are linked in sequence.
3. trees vibration dynamic perfromance according to claim 2 is transmitted experiment test device, it is characterized in that: described vibration displacement proving installation adopts tripod fixed displacement sensor, steady and the adjustable arbitrary height of tripod can be tested the vibration displacement of different directions by the connecting link of rotation on the tripod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523695 CN203053919U (en) | 2012-10-15 | 2012-10-15 | Testing device for vibrating dynamic characteristic transfer tests of trees |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220523695 CN203053919U (en) | 2012-10-15 | 2012-10-15 | Testing device for vibrating dynamic characteristic transfer tests of trees |
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| CN203053919U true CN203053919U (en) | 2013-07-10 |
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| CN 201220523695 Expired - Fee Related CN203053919U (en) | 2012-10-15 | 2012-10-15 | Testing device for vibrating dynamic characteristic transfer tests of trees |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115545A (en) * | 2015-09-15 | 2015-12-02 | 绍兴文理学院 | Supersonic wave ridge buster test board |
| CN105334037A (en) * | 2015-11-23 | 2016-02-17 | 华南农业大学 | Vibration parameter testing device for vibratory harvesting of fruits |
| ES2563244A1 (en) * | 2015-09-14 | 2016-03-11 | Universidad de Córdoba | Test bench for log vibrators (Machine-translation by Google Translate, not legally binding) |
| CN105653853A (en) * | 2015-12-29 | 2016-06-08 | 南京林业大学 | Testing method for inherent characteristic of fruit tree |
| CN106404653A (en) * | 2016-06-29 | 2017-02-15 | 浙江理工大学 | A bionic intelligent electronic fruit vibration detecting device |
| CN107295856A (en) * | 2017-07-13 | 2017-10-27 | 浙江理工大学 | A kind of novel clamping vibrating picker for woods fruit |
| CN107436284A (en) * | 2017-09-08 | 2017-12-05 | 南京林业大学 | A kind of vibration parameters test device of the fruit vibrating response mode based on vibration harvesting |
| CN107624374A (en) * | 2017-10-25 | 2018-01-26 | 南京林业大学 | The establishing method of fruit tree vibration harvesting frequency based on spectral characteristic |
| CN111316075A (en) * | 2017-10-03 | 2020-06-19 | Pnat有限责任公司 | Plant growth analysis device |
| CN113865817A (en) * | 2021-09-30 | 2021-12-31 | 电子科技大学 | Using method of phenolic aldehyde laminated cloth rod in osteotomy vibration test |
| CN113959479A (en) * | 2021-10-20 | 2022-01-21 | 中国科学院地理科学与资源研究所 | Standing tree phenological monitoring device and method based on trunk swinging acceleration |
| CN114563079A (en) * | 2022-03-07 | 2022-05-31 | 哈尔滨理工大学 | Fruit tree forced vibration soil fluctuation measurement method for blueberry picking |
| CN115250740A (en) * | 2022-08-19 | 2022-11-01 | 华南农业大学 | Fruit separation simulation device and method for fruit vibration harvesting test |
| CN115378219A (en) * | 2022-10-25 | 2022-11-22 | 东北林业大学 | Branch vibration power generation device |
| CN113959479B (en) * | 2021-10-20 | 2024-04-26 | 中国科学院地理科学与资源研究所 | Living tree climate monitoring device and method based on trunk swing acceleration |
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2012
- 2012-10-15 CN CN 201220523695 patent/CN203053919U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2563244A1 (en) * | 2015-09-14 | 2016-03-11 | Universidad de Córdoba | Test bench for log vibrators (Machine-translation by Google Translate, not legally binding) |
| CN105115545A (en) * | 2015-09-15 | 2015-12-02 | 绍兴文理学院 | Supersonic wave ridge buster test board |
| CN105334037A (en) * | 2015-11-23 | 2016-02-17 | 华南农业大学 | Vibration parameter testing device for vibratory harvesting of fruits |
| CN105334037B (en) * | 2015-11-23 | 2018-01-09 | 华南农业大学 | A kind of vibration parameters test device for fruit vibration harvesting |
| CN105653853A (en) * | 2015-12-29 | 2016-06-08 | 南京林业大学 | Testing method for inherent characteristic of fruit tree |
| CN106404653B (en) * | 2016-06-29 | 2020-02-07 | 浙江理工大学 | Bionic intelligent electronic fruit vibration detection device |
| CN106404653A (en) * | 2016-06-29 | 2017-02-15 | 浙江理工大学 | A bionic intelligent electronic fruit vibration detecting device |
| CN107295856A (en) * | 2017-07-13 | 2017-10-27 | 浙江理工大学 | A kind of novel clamping vibrating picker for woods fruit |
| CN107436284A (en) * | 2017-09-08 | 2017-12-05 | 南京林业大学 | A kind of vibration parameters test device of the fruit vibrating response mode based on vibration harvesting |
| CN111316075A (en) * | 2017-10-03 | 2020-06-19 | Pnat有限责任公司 | Plant growth analysis device |
| CN111316075B (en) * | 2017-10-03 | 2023-01-20 | Pnat有限责任公司 | Plant growth control system and plant growth analysis method |
| CN107624374A (en) * | 2017-10-25 | 2018-01-26 | 南京林业大学 | The establishing method of fruit tree vibration harvesting frequency based on spectral characteristic |
| CN113865817A (en) * | 2021-09-30 | 2021-12-31 | 电子科技大学 | Using method of phenolic aldehyde laminated cloth rod in osteotomy vibration test |
| CN113959479A (en) * | 2021-10-20 | 2022-01-21 | 中国科学院地理科学与资源研究所 | Standing tree phenological monitoring device and method based on trunk swinging acceleration |
| CN113959479B (en) * | 2021-10-20 | 2024-04-26 | 中国科学院地理科学与资源研究所 | Living tree climate monitoring device and method based on trunk swing acceleration |
| CN114563079A (en) * | 2022-03-07 | 2022-05-31 | 哈尔滨理工大学 | Fruit tree forced vibration soil fluctuation measurement method for blueberry picking |
| CN115250740A (en) * | 2022-08-19 | 2022-11-01 | 华南农业大学 | Fruit separation simulation device and method for fruit vibration harvesting test |
| CN115250740B (en) * | 2022-08-19 | 2023-08-29 | 华南农业大学 | Fruit separation simulation device and method for fruit vibration harvesting test |
| CN115378219A (en) * | 2022-10-25 | 2022-11-22 | 东北林业大学 | Branch vibration power generation device |
| CN115378219B (en) * | 2022-10-25 | 2023-01-24 | 东北林业大学 | Branch vibration power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20141015 |
|
| EXPY | Termination of patent right or utility model |