CN107271030A - Test device for determining rod member resonant frequency - Google Patents
Test device for determining rod member resonant frequency Download PDFInfo
- Publication number
- CN107271030A CN107271030A CN201710585626.7A CN201710585626A CN107271030A CN 107271030 A CN107271030 A CN 107271030A CN 201710585626 A CN201710585626 A CN 201710585626A CN 107271030 A CN107271030 A CN 107271030A
- Authority
- CN
- China
- Prior art keywords
- rod member
- resonant frequency
- test device
- frequency
- vibration source
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses a kind of test device, a kind of test device for being used to determine rod member resonant frequency is especially disclosed, belongs to theoretical test test equipment design and manufacturing technology field.There is provided a kind of simple in construction, convenient and easy, it is adaptable to need the quick test device for being used to determine rod member resonant frequency for determining rod member resonant frequency.Described test device includes support, tachograph and with the vibration source for centrifuging rotatable parts, it is necessary to which the rod member for determining resonant frequency is clamped on described support, and described vibration source is packed in the middle part for the rod member for needing to determine resonant frequency；In the continuous mode of rod member resonant frequency, the rotating speed of the centrifugation rotatable parts is determined by described tachograph.
Description
Technical field
The present invention relates to a kind of test device, more particularly, to a kind of test device for being used to determine rod member resonant frequency,
Belong to theoretical test test equipment design and manufacturing technology field.
Background technology
The resonant frequency for how determining rod member is an indispensable job during current production and living are built.Prior art
In be used for determine rod member resonant frequency device it is sufficiently complex, be in the previous work in heavy construction mostly.For theory
For the convenient simple and effective demand for determining rod member resonant frequency of some energy needed of research, without directive significance.Therefore such as
What simple, efficiently measure rod member resonant frequency becomes the technical problem for being badly in need of solution for those skilled in the art.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of simple in construction, convenient and easy, it is adaptable to need quick true
The test device for being used to determine rod member resonant frequency of fixed pole part resonant frequency.
It is to solve the technical scheme that is used of above-mentioned technical problem：A kind of test dress for being used to determine rod member resonant frequency
Put, described test device includes support, tachograph and vibration source with centrifugation rotatable parts, it is necessary to determine resonant frequency
Rod member it is clamped on described support, described vibration source be packed in need determine resonant frequency rod member middle part；In rod member
In the continuous mode of resonant frequency, the rotating speed of the centrifugation rotatable parts is determined by described tachograph.
The beneficial effects of the invention are as follows：The application is by setting one to include support, tachograph and turn with centrifugation
The test device of the vibration source of dynamic component, and the rod member for determining resonant frequency will be needed clamped on described support, vibration source is consolidated
An environment easy to be convenient and that rod member resonance can be determined is constituted mounted in the middle part for the rod member for needing to determine resonant frequency.Entering
Row rod member resonant frequency is determined, and starts described vibration source, and vibration is produced at the middle part of rod member, and by changing the vibration frequency of vibration source
Rate, reaches the vibration frequency that vibration source is recorded when being resonated with rod member, you can fast, easily determine the resonance frequency of rod member.Gram
Take and showed in the art, large-scale, professional sensing equipment is needed when determining rod member resonant frequency and many small-sized, universal bars are caused
Part, or trial stem can not carry out the situation of resonant frequency measure.Due to it is described herein measure device only include support, turn
Speed recording instrument and a vibration source with centrifugation rotatable parts, so that can also make the structure of device described herein becomes
Very simple, build it is very convenient, fast, be particularly suitable for use in needing quick some simple rod members for determining rod member resonant frequency or
Theoretical test rod member.
It is further that described vibration source includes a variable speed electric motors, particularly, described centrifugation rotatable parts are installed in described
Eccentric runner on the output shaft of variable speed electric motors, particularly.
Such scheme it is preferable that, described vibration source also includes frequency modulator, and the output shaft of the variable speed electric motors, particularly turns
Speed is adjusted by described frequency modulator.
It is further that described tachograph is a Handheld laser recorder.
Such scheme it is preferable that, described support includes platform chassis and the support being arranged on the platform chassis
Frame is, it is necessary to which the rod member for determining resonant frequency is clamped on described platform chassis by described bracket.
It is further that described support includes platform chassis and the bracket being arranged on the platform chassis, it is necessary to determine
The rod member of resonant frequency is clamped on described platform chassis by described bracket, and described frequency modulator is arranged on described bottom
On body panel, described tachograph is an electronic type photoelectric recording instrument.
Such scheme it is preferable that, described test device also includes central control system, described center control
System includes input touch screen and PLC module, and the signal output part of the electronic type photoelectric recording instrument connects with described PLC module
Connect, the signal pipeline of the frequency modulator is connected with described PLC module.
It is further that described bracket edge needs the length direction for determining the rod member of resonant frequency is adjustable to be packed in
On described platform chassis.
Be further, it is necessary to determine the rod member and described bracket of resonant frequency between be additionally provided with buffering transition knot
Structure.
Such scheme it is preferable that, described buffering transition structure is cork cushion block.
Brief description of the drawings
Fig. 1 is used for the structural representation for the test device for determining rod member resonant frequency for the present invention.
Marked in figure：Support 1, tachograph 2, centrifugation rotatable parts 3, vibration source 4, rod member 5, frequency modulator 6, underframe are put down
Platform 7, bracket 8, central control system 9, input touch screen 10, PLC module 11, buffering transition structure 12.
Embodiment
Be as shown in Figure 1 the present invention provide it is a kind of simple in construction, convenient and easy, it is adaptable to need quick to determine that rod member is common
The test device for being used to determine rod member resonant frequency of vibration frequency.Described test device includes support 1, the and of tachograph 2
Vibration source 4 with centrifugation rotatable parts 3 is, it is necessary to which the rod member 5 for determining resonant frequency is clamped on described support 1, and described shakes
Source 4 is packed in the middle part for the rod member 5 for needing to determine resonant frequency；In the continuous mode of the resonant frequency of rod member 5, the centrifugation turns
The rotating speed of dynamic component 3 is determined by described tachograph 2.The application includes support 1, tachograph by setting one
2 and with centrifugation rotatable parts 3 vibration source 4 test device, and will need determine resonant frequency rod member 5 it is clamped described
On support 1, the middle part that vibration source 4 is packed in the rod member 5 for needing to determine resonant frequency constitutes an easy convenience and can determined
The environment that rod member 5 resonates.Determined carrying out the resonant frequency of rod member 5, start described vibration source 4, produced and shake at the middle part of rod member 5
It is dynamic, and by changing the vibration frequency of vibration source 4, the vibration frequency of vibration source 4 is recorded when reaching and being resonated with rod member 5, you can fast
Speed, the convenient resonance frequency for determining rod member 5.Overcome and show in the art, large-scale, specialty is needed when determining 5 resonant frequency of rod member
Sensing equipment and cause many small-sized, general rod members, or trial stem can not carry out the situation of resonant frequency measure.Due to this
The described measure device of application only includes support 1, tachograph 2 and a vibration source 4 with centrifugation rotation section 3, from
And the structure of device described herein can also be made to become very simple, build very convenient, fast, it is particularly suitable for use in needs
Quick some simple rod member or theoretical test rod members for determining rod member resonant frequency.
In above-mentioned embodiment, in order to improve the versatility and simple easily building property, described vibration source 4 of herein described device
Using a variable speed electric motors, particularly, described centrifugation rotatable parts 3 are turned using the bias on the output shaft of the variable speed electric motors, particularly
Wheel；Described tachograph 2 is a Handheld laser recorder.Meanwhile, it is described for convenience to the control of electric machine frequency
Vibration source 4 also include frequency modulator 6, the rotating speed of the output shaft of the variable speed electric motors, particularly adjusted by described frequency modulator 6.Equally be for
The versatility of the herein described device of raising and simple easily building property, support 1 described herein include platform chassis 7 and arrangement
Bracket 8 on the platform chassis 7 is, it is necessary to which the rod member 5 for determining resonant frequency is clamped in described underframe by described bracket 8
On platform 7, described frequency modulator 6 is arranged on described platform chassis 7, and described tachograph 2 is an electronic type light
Electrographic recording instrument；Length direction of the described bracket 8 along the rod member 5 for needing to determine resonant frequency is adjustable to be packed in described bottom
On body panel 7.
Certainly, in order to improve the accuracy that herein described measure device is determined to rod member resonant frequency, meanwhile, it can carry again
The operability of high device, test device described herein also includes central control system 9, described central control system 9
Including input touch screen 10 and PLC module 11, the signal output part of the electronic type photoelectric recording instrument connects with described PLC module 11
Connect, the signal pipeline of the frequency modulator 6 is connected with described PLC module 11；Need determine resonant frequency rod member 5 with it is described
Bracket 8 between be additionally provided with buffering transition structure 12.Now, the preferred structure of described buffering transition structure 12 is cork pad
Block.
Embodiment one
Rod member resonant frequency detection means, workbench is fixed on ground by fastening bolt；Bearing is passed through into fastening
It is bolted on workbench, bearing adjustable interval；Rod member to be measured is fixed on bearing by fastening bolt, fastening bolt
Middle pad cork cushion block；Motor with eccentric runner is fixed on to the midpoint of rod member；Turn on the power switch, make the eccentric runner of band
Motor rotate, by frequency modulator change electric machine frequency, and then change motor speed, with hand-held rotational speed meters record rotating speed, test
Demonstrate,prove electric machine frequency.Rod member records the resonant frequency of frequency modulator frequency, as rod member when being resonated with motor.
Claims (10)
1. a kind of test device for being used to determine rod member resonant frequency, it is characterised in that：Described test device includes support
(1), tachograph (2) and with centrifugation rotatable parts (3) vibration source (4), it is necessary to which the rod member (5) for determining resonant frequency is clamped
On described support (1), described vibration source (4) is packed in the middle part for the rod member (5) for needing to determine resonant frequency；In rod member
(5) in the continuous mode of resonant frequency, the rotating speed of the centrifugation rotatable parts (3) is determined by described tachograph (2).
2. the test device according to claim 1 for being used to determine rod member resonant frequency, it is characterised in that：Described vibration source
(4) variable speed electric motors, particularly is included, described centrifugation rotatable parts (3) are the bias on the output shaft of the variable speed electric motors, particularly
Runner.
3. the test device according to claim 2 for being used to determine rod member resonant frequency, it is characterised in that：Described vibration source
(4) frequency modulator (6) is also included, the rotating speed of the output shaft of the variable speed electric motors, particularly is adjusted by described frequency modulator (6).
4. being used for according to claim 1,2 or 3 determines the test device of rod member resonant frequency, it is characterised in that：It is described
Tachograph (2) be Handheld laser recorder.
5. the test device according to claim 4 for being used to determine rod member resonant frequency, it is characterised in that：Described support
(1) platform chassis (7) and the bracket (8) being arranged on the platform chassis (7) are included, it is necessary to determine the rod member (5) of resonant frequency
It is clamped on described platform chassis (7) by described bracket (8).
6. the test device according to claim 3 for being used to determine rod member resonant frequency, it is characterised in that：Described support
(1) platform chassis (7) and the bracket (8) being arranged on the platform chassis (7) are included, it is necessary to determine the rod member (5) of resonant frequency
Clamped on described platform chassis (7) by described bracket (8), described frequency modulator (6) is flat installed in described underframe
On platform (7), described tachograph (2) is an electronic type photoelectric recording instrument.
7. the test device according to claim 6 for being used to determine rod member resonant frequency, it is characterised in that：Described test
Device also includes central control system (9), and described central control system (9) includes input touch screen (10) and PLC module (11),
The signal output part of the electronic type photoelectric recording instrument is connected with described PLC module (11), and the signal of the frequency modulator (6) is defeated
Line sending is connected with described PLC module (11).
8. the test device according to claim 7 for being used to determine rod member resonant frequency, it is characterised in that：Described bracket
(8) edge needs the length direction for determining the rod member (5) of resonant frequency is adjustable to be packed on described platform chassis (7).
9. the test device according to claim 6 for being used to determine rod member resonant frequency, it is characterised in that：Need to determine altogether
Buffering transition structure (12) is additionally provided between the rod member (5) of vibration frequency and described bracket (8).
10. the test device according to claim 9 for being used to determine rod member resonant frequency, it is characterised in that：Described is slow
Transition structure (12) is rushed for cork cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710585626.7A CN107271030A (en) | 2017-07-18 | 2017-07-18 | Test device for determining rod member resonant frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710585626.7A CN107271030A (en) | 2017-07-18 | 2017-07-18 | Test device for determining rod member resonant frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107271030A true CN107271030A (en) | 2017-10-20 |
Family
ID=60077769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710585626.7A Pending CN107271030A (en) | 2017-07-18 | 2017-07-18 | Test device for determining rod member resonant frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107271030A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09171008A (en) * | 1995-12-20 | 1997-06-30 | Suzuki Motor Corp | Inspection method for product |
| CN101700157A (en) * | 2009-07-31 | 2010-05-05 | 靳志建 | Economic type electric vibration seat |
| CN202711540U (en) * | 2012-07-19 | 2013-01-30 | 四川理工学院 | Experimental teaching aid for demonstrating determinants of inherent frequency of upper standing wave of chord wire |
| CN202809552U (en) * | 2012-07-12 | 2013-03-20 | 厦门宇龙机械有限公司 | Mechanical resonant deicer |
-
2017
- 2017-07-18 CN CN201710585626.7A patent/CN107271030A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09171008A (en) * | 1995-12-20 | 1997-06-30 | Suzuki Motor Corp | Inspection method for product |
| CN101700157A (en) * | 2009-07-31 | 2010-05-05 | 靳志建 | Economic type electric vibration seat |
| CN202809552U (en) * | 2012-07-12 | 2013-03-20 | 厦门宇龙机械有限公司 | Mechanical resonant deicer |
| CN202711540U (en) * | 2012-07-19 | 2013-01-30 | 四川理工学院 | Experimental teaching aid for demonstrating determinants of inherent frequency of upper standing wave of chord wire |
Non-Patent Citations (1)
| Title |
|---|
| 路峻岭: "锯条马达演示受迫振动", 《物理演示实验手册》 * |
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Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |