CN206819148U - Portable numerical control stem dynamic characteristic test system verdant and thick greatly - Google Patents
Portable numerical control stem dynamic characteristic test system verdant and thick greatly Download PDFInfo
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- CN206819148U CN206819148U CN201720800946.5U CN201720800946U CN206819148U CN 206819148 U CN206819148 U CN 206819148U CN 201720800946 U CN201720800946 U CN 201720800946U CN 206819148 U CN206819148 U CN 206819148U
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- stepper motor
- host computer
- verdant
- pressure sensor
- fixture
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Abstract
It the utility model is related to a kind of portable numerical control stem dynamic characteristic test system verdant and thick greatly, including testing stand, control system and host computer；Testing stand includes fixture, pull pressure sensor, guide pillar, lead screw, counterweight post, support bar, bottom plate, support column, stepper motor and shaft coupling；Control system includes STM32 master controllers, Switching Power Supply, stepper motor driver, power switch and control button；STM32 master controllers are connected with host computer, host computer display interface can real-time display experiment during pressure change curve and store data in host computer.The utility model is simple in construction, small volume, is easy to carry, shallot growth onsite application can be taken to, extruded, rise and the mechanical test such as pull out, fixture size is adjustable, the experiment of different cultivars, different-diameter shallot mechanical characteristic is can be suitably used for, and test data can real-time display storage.
Description
Technical field
A kind of portable numerical control stem dynamic characteristic test system verdant and thick greatly is the utility model is related to, belongs to crops material power
Field.
Background technology
With developing rapidly for Agriculture Engineering Subject, the agricultural material dynamic problem that agriculture project is related to is furtherd investigate, more
Benefit seems important.In order to develop more preferable agricultural machinery product, it is necessary to grasp the mechanical property of its service object's crops stalk, be
The development of such agricultural machinery product provides theoretical foundation.The method of testing of metal material mechanics performance is very ripe at present, and gathers around
There is perfect test device, but, testable dress still immature for the method for testing of the crops stalk mechanical characteristic such as shallot
Put seldom, mainly there is universal testing machine and some small-scale test instruments.Although universal testing machine is a kind of high-precision measuring instrument
Device, application is wider, but bulky, can only be tested indoors, and some stalk dynamic characteristic tests need reality
When measure on the spot, such as shallot, garlic, wheat etc. limit test site；And this testing machine price and its high
It is expensive, can not large-scale application.Although small-sized test instrument can carry out the measurement of stalk mechanical characteristic, volume is also smaller,
Its use condition receives many limitations：Precision is relatively low；Control manually it is more, it is artificial caused by error it is larger；Test site will
Ask limited, can only be used in specific environment；It is some to test the platform structure limitation that is put to the test, it can not measure, such as shallot, garlic
The measurement of pulling force.
The content of the invention
To improve the method for testing and measurement accuracy of big verdant and thick stem mechanical characteristic, the utility model provides a kind of portable
Numerical control stem dynamic characteristic test system verdant and thick greatly.The utility model can take shallot growth onsite application to, extruded, rise and pull out
Mechanical test, fixture size is adjustable, can be suitably used for the experiment of different cultivars, different-diameter shallot mechanical characteristic, and test data
Can real-time display storage.
Technical scheme is used by the utility model：
A kind of portable numerical control stem dynamic characteristic test system verdant and thick greatly, including testing stand, control system and host computer.
The testing stand includes fixture, pull pressure sensor, guide pillar, lead screw, counterweight post, support bar, bottom plate, support
Post, stepper motor and shaft coupling.
The fixture is fixed on the underface of pull pressure sensor, and fixture is U-type groove structure；Both sides are respectively set inside U-type groove
There is a holding shim；The holding shim of side is fixed, and the holding shim of opposite side is movable to be connected in U-type groove；Two folders
The spacing held between pad is adjustable；Spacing between two holding shims is adjusted by regulation button, it is different big verdant and thick to adapt to
The diameter of stem；It is relative on holding shim to be provided with rubber blanket.
The lead screw lower end is vertically mounted on the bottom plate；Right angle setting on the bottom plate of lead screw front and rear sides
There is guide pillar；Two guide pillar lower ends are located on same horizontal line with lead screw lower end；Bottom plate front end is provided with rectangular channel；Rectangular channel
Immediately below fixture；Fixture can move up and down in rectangular channel；Support bar is parallel with bottom plate while movable is connected to guide pillar
With lead screw top；Support bar can move up and down under the drive of lead screw along guide pillar, and then drive pull pressure sensor
Move up and down, realize the synchronizing moving of support bar, pull pressure sensor and fixture；The support bar front end and pull pressure sensor
Connection；The movable connection counterweight post in its rear end；The counterweight post is the cylinder that two sizes are identical, weight is respectively 2kg, purpose
It is to test the stress balance of process, reduces test error；According to the thickness selection of experiment green onion stem using a counterweight post or
Two counterweight posts.
The stepper motor is fixed on bottom plate bottom surface；Stepper motor is connected by shaft coupling with lead screw；Stepper motor
During rotating, lead screw rotation is driven, and then drives support bar to move up and down, completes motion process.
The pull pressure sensor is connected to controller by transmitter, and transmitter can believe the millivolt of pull pressure sensor
The voltage signal of standard number is enlarged into, is easy to the processing of data.
The control system includes controller, Switching Power Supply, stepper motor driver, power switch and control button.Institute
State the analog-signal transitions that controller transmits pressure and be sent to host computer (computer) through serial communication for data signal；
The Switching Power Supply is connected with general supply, and controller power supply is supplied electricity to for 220V alternating currents to be changed into 5V direct currents；The stepping
Motor driver side is connected with stepper motor, and opposite side is connected with controller, for controlling rotating speed and the steering of stepper motor,
And then the speed that executing agency rises or falls during Control experiment；The control button is connected with controller；The control button
Including rising, declining, pulling force, pressure, reset and stop six buttons, pin corresponding with controller connects each button respectively
Connect；Wherein, rise, decline the lifting of button difference Control experiment platform executing agency；Pulling force, pressure-button are corresponding for selecting
Mechanical test；SR is used to make testing stand return to initial position；Stop button is used to stop test bench running.
Serial communication between the controller and host computer, host computer display interface can be drawn during real-time display experiment
The change curve of pressure is simultaneously stored data in host computer.
The controller can use STM32 single-chip microcomputers.
The beneficial effects of the utility model：
, can be according to the diameter adjustment fixture size of big verdant and thick stem, suitable for different cultivars 1. the utility model uses fixture
The measurement request of big verdant and thick stem mechanical characteristic, application are wider.
2. the utility model is simple in construction, small volume, in light weight, it is easy to carry, measurement accuracy is high, can be grown in shallot
Tested at scene.
3. the utility model uses stepper motor as drive mechanism, when eliminating manually operated caused by speed is non-constant
Error, while alleviate labor intensity.
4. the utility model can show boundary by the serial communication between STM32 master controllers and host computer in host computer
The functions such as the real-time display of test data, historical query, data download, Drawing of Curve are realized in face, can be shown by host computer
The changing rule of interface Real Time Observation stem mechanical characteristic verdant and thick greatly.
5. the utility model is equally applicable to the experiment of other crops stalk mechanical characteristics, such as garlic, wheat, application
Scope is wider.
Brief description of the drawings
Fig. 1 is the structure chart of the utility model testing stand；
Fig. 2 is the utility model testing stand front view；
Fig. 3 is the utility model testing stand left view；
Fig. 4 is the three-dimensional structure diagram of the utility model control cabinet；
In figure：1. support column, 2. bottom plates, 3. stepper motors, 4. shaft couplings, 5. lead screws, 6. guide pillars, 7. support bars,
8. pull pressure sensor, 9. fixtures, 10. adjusting knobs, 11. counterweight posts, 12. casings, 13. Switching Power Supplies, 14. stepper motors drive
Dynamic device, 15. controllers, 16. pull test buttons, 17. pressure test buttons, 18. rise control button, and 19. decline controls are pressed
Button, 20. SRs, 21. stop buttons
Embodiment
The utility model is described further with embodiment below in conjunction with the accompanying drawings.This testing stand integrally uses steelframe knot
Structure, to mitigate weight as far as possible, overall dimensions are designed as 20cm × 12cm × 35cm, and small volume is simple in construction, can take to big
Green onion grows onsite application.
The utility model includes support column 1, bottom plate 2, stepper motor 3, shaft coupling 4, lead screw 5, guide pillar 6, support bar
7th, pull pressure sensor 8, fixture 9, adjusting knob 10, counterweight post 11, casing 12, Switching Power Supply 13, stepper motor driver 14,
STM32 master controllers 15, control button.The control button includes pull test button 16, pressure test button 17, rises control
Button 18 processed, decline control button 19, SR 20, stop button 21.To ensure the stabilization of whole system experiment, testing stand
Main body selects steel frame construction.Serial communication between the controller 15 and host computer, host computer display interface can real-time display
The change curve of pressure and stored data in during experiment in host computer；Host computer can use existing common computer.
The support column 1 is fastened on the downside of bottom plate 2 by thread tapping, plays a supportive role；The guide pillar 6 perpendicular to
The top of bottom plate 2 be arranged in parallel, is fixed through support bar 7, guide pillar 6 welds on a base plate 2；The middle part tapping of support bar 7 passes through helical pitch
Leading screw 5, when lead screw 5 rotates, drive support bar 7 to be moved on guide pillar 6, and then drive pull pressure sensor 8 to move up and down,
Realize the synchronizing moving of support bar 7, pull pressure sensor 8 and fixture 9；The front end of support bar 7 is passed by bolt and pressure
Sensor 8, fixture 9 connect, and rear end leads to more bolt connection counterweight posts 11；The counterweight post 11 is two sizes, weight (2kg) is identical
Cylinder, in order to test the stress balance of process, reduce test error.
The fixture 9 is bolted on the underface of pull pressure sensor 8.Influence factor and behaviour in view of experiment
That makees is convenient and strength-saving, and fixture 9 is designed as U-type groove structure, and both sides respectively add a holding shim in U-type groove, and adjusting knob 10 can be with
According to the diameter adjustment distance for surveying big verdant and thick stem, suitable for the measurement of various big verdant and thick stem mechanical characteristics.Exist to reduce green onion stem
Damage during experiment, one layer of 2mm rubber blanket is padded on pad.
The stepper motor 3 is fixed on the downside of bottom plate 2, and top rotating shaft is connected by shaft coupling 4 with lead screw 5, bottom
Wiring is connected to the M542 types stepper motor driver 14 in control cabinet；The pull pressure sensor 8 is connected to by transmitter
On control cabinet, enter row data communication with controller 15, transmitter (BSQW-V types) can put the millivolt signal of pull pressure sensor 8
The greatly voltage signal of standard, it is easy to the processing of data.(the line stepping of two-phase four electricity of the series of thunder match 86 of stepper motor 3 used
Machine), pull pressure sensor 8 is the MIK-LCS1 type sensors of 0-40kg ranges.
The control cabinet includes：Casing 12, Switching Power Supply 13, stepper motor driver 14, controller 15, control button.
The control button includes：Pull test button 16, pressure test button 17, rise control button 18, decline control button 19,
SR 20, stop button 21.
When carrying out the experiment of field shallot pulling force, testing stand is placed on big verdant and thick stem and is located at the location directly below of fixture 9,
By rising control button 18 or declining the position of the alignment jig 9 of control button 19 clamping green onion stem, rotate adjusting knob 10 and clamp
Green onion stem is tested, makes green onion stem, fixture 9, pull pressure sensor 8 on same vertical line；Pass through host computer adjustment control device 15
Relative program, and then pass through the rotating speed of the control stepper motor 3 of stepper motor driver 14；ON switch power supply 13, by lower pulling force
Test button 16, proceed by pulling force experiment；Stepper motor 3 rotates, and drives lead screw 5 to rotate, and lead screw 5 drives branch
Strut 7 moves up, and then drives synchronously moving up for pull pressure sensor 8, fixture 9 and green onion stem, completes whole measurement experiment；Tested
Cheng Zhong, test data are real-time transmitted to host computer display interface by the communication between controller 15 and host computer, and with curve
The form of change is shown, is easy to the processing of data；When shallot is pulled out, stop button 21, off-test are pressed, and press
Lower SR 20 makes testing stand return to initial position, and test data is stored automatically in computer.
Finally it should be noted that above example is merely to illustrate the technical solution of the utility model rather than to this practicality
The limitation of novel protected scope.Although being explained in detail with reference to preferred embodiment to the utility model, the common skill of this area
Art personnel should be appreciated that and the technical solution of the utility model can be modified or equivalent substitution, without departing from this practicality
The spirit and scope of new technique scheme.
Claims (4)
- A kind of 1. portable numerical control stem dynamic characteristic test system verdant and thick greatly, it is characterised in that including testing stand, control system and Host computer；The testing stand include fixture, pull pressure sensor, guide pillar, lead screw, counterweight post, support bar, bottom plate, support column, Stepper motor and shaft coupling；The fixture is fixed on the underface of pull pressure sensor, and fixture is U-type groove structure；Both sides are respectively provided with one inside U-type groove Individual holding shim；The holding shim of side is fixed, and the holding shim of opposite side is movable to be connected in U-type groove；Two gripper pads Spacing between piece is adjustable；Spacing between two holding shims is adjusted by regulation button, to adapt to different big verdant and thick stems Diameter；It is relative on holding shim to be provided with rubber blanket；The lead screw lower end is vertically mounted on the bottom plate；It is vertically installed with and leads on the bottom plate of lead screw front and rear sides Post；Two guide pillar lower ends are located on same horizontal line with lead screw lower end；Bottom plate front end is provided with rectangular channel；Rectangular channel is located at Immediately below fixture；Fixture can move up and down in rectangular channel；Support bar is parallel with bottom plate while movable be connected to guide pillar and lead Journey leading screw top；Support bar can move up and down under the drive of lead screw along guide pillar, and then drive above and below pull pressure sensor It is mobile, realize the synchronizing moving of support bar, pull pressure sensor and fixture；The support bar front end connects with pull pressure sensor Connect；The movable connection counterweight post in its rear end；The stepper motor is fixed on bottom plate bottom surface, and stepper motor is connected by shaft coupling with lead screw；Stepper motor is positive and negative When turning, lead screw rotation is driven, and then drives support bar to move up and down, completes motion process；The pull pressure sensor connects controller by transmitter, and the millivolt signal of pull pressure sensor is enlarged into by transmitter The voltage signal of standard, it is easy to the processing of data；The control system includes controller, Switching Power Supply, stepper motor driver, power switch and control button；The control The analog-signal transitions that device processed transmits pressure are that data signal is sent to host computer through serial communication；The switch electricity Source is connected with general supply, and controller power supply is supplied electricity to for 220V alternating currents to be changed into 5V direct currents；The stepper motor driver Stepper motor and controller are connected respectively, for controlling rotating speed and the steering of stepper motor, and then executing agency during Control experiment The speed risen or fallen；The control button is connected with controller；Serial communication between the controller and host computer, host computer display interface can real-time display experiment during pressure Change curve and store data in host computer.
- 2. a kind of portable numerical control as claimed in claim 1 stem dynamic characteristic test system verdant and thick greatly, it is characterised in that described Counterweight post is two, and each counterweight post weight is 2kg, is matched somebody with somebody according to the thickness selection of experiment green onion stem using a counterweight post or two Weight post.
- 3. a kind of portable numerical control as claimed in claim 1 stem dynamic characteristic test system verdant and thick greatly, it is characterised in that described Control button includes rising, decline, pulling force, pressure, reset and stops six buttons；Wherein, rise, decline button controls respectively The lifting of testing stand executing agency；Pulling force, pressure-button are used to select corresponding mechanical test；SR is used to make testing stand Return to initial position；Stop button is used to stop test bench running.
- 4. a kind of portable numerical control as claimed in claim 1 stem dynamic characteristic test system verdant and thick greatly, it is characterised in that described Controller is STM32 single-chip microcomputers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720800946.5U CN206819148U (en) | 2017-07-04 | 2017-07-04 | Portable numerical control stem dynamic characteristic test system verdant and thick greatly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720800946.5U CN206819148U (en) | 2017-07-04 | 2017-07-04 | Portable numerical control stem dynamic characteristic test system verdant and thick greatly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206819148U true CN206819148U (en) | 2017-12-29 |
Family
ID=60761843
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720800946.5U Expired - Fee Related CN206819148U (en) | 2017-07-04 | 2017-07-04 | Portable numerical control stem dynamic characteristic test system verdant and thick greatly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206819148U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702668A (en) * | 2019-01-29 | 2019-05-03 | 山东省建筑科学研究院 | A kind of wire conductor resistance test special fixture and its application method |
| CN111176148A (en) * | 2018-11-13 | 2020-05-19 | 常州星宇车灯股份有限公司 | Intelligent weight lifting control system and control method |
| CN114739552A (en) * | 2022-02-28 | 2022-07-12 | 北京市农林科学院智能装备技术研究中心 | System and method for synchronously measuring clamping force and deformation of seedling stem |
-
2017
- 2017-07-04 CN CN201720800946.5U patent/CN206819148U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111176148A (en) * | 2018-11-13 | 2020-05-19 | 常州星宇车灯股份有限公司 | Intelligent weight lifting control system and control method |
| CN109702668A (en) * | 2019-01-29 | 2019-05-03 | 山东省建筑科学研究院 | A kind of wire conductor resistance test special fixture and its application method |
| CN109702668B (en) * | 2019-01-29 | 2023-08-15 | 山东省建筑科学研究院 | Special clamp for testing electric wire conductor resistance and application method thereof |
| CN114739552A (en) * | 2022-02-28 | 2022-07-12 | 北京市农林科学院智能装备技术研究中心 | System and method for synchronously measuring clamping force and deformation of seedling stem |
| CN114739552B (en) * | 2022-02-28 | 2023-12-05 | 北京市农林科学院智能装备技术研究中心 | Synchronous measurement system and method for seedling stem clamping force and deformation |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20180704 |