CN208968780U - A kind of two component low-frequency vibration tables - Google Patents
A kind of two component low-frequency vibration tables Download PDFInfo
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- CN208968780U CN208968780U CN201821865186.7U CN201821865186U CN208968780U CN 208968780 U CN208968780 U CN 208968780U CN 201821865186 U CN201821865186 U CN 201821865186U CN 208968780 U CN208968780 U CN 208968780U
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- platform
- guiding axis
- frequency vibration
- driving assembly
- locating part
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Abstract
The utility model discloses a kind of two component low-frequency vibration tables, including the pedestal, the first platform and the second platform set gradually from bottom to up；The first guiding axis and the first driving assembly are provided between the pedestal and the first platform, first mesa base is provided with the first air axle sleeve, the first air axle sleeve is set on the first guiding axis, and first driving assembly can drive the first platform to move along the first guiding axis；The second guiding axis and the second driving assembly are provided between first platform and the second platform, the bottom of second platform is provided with the second air axle sleeve, the second air axle sleeve is set on the second guiding axis, and second driving assembly can drive the second platform to move along the second guidance set；First guiding axis is vertically arranged with the second guiding axis.It is able to carry out the coupling low-frequency vibration of two components, and reliable performance meets the requirement that two component low-frequency shock transducers are carried out with measurement and calibration and two component coupling measurements.
Description
Technical field
The utility model relates to mechanical test technical fields, and in particular to a kind of two component low-frequency vibration tables.
Background technique
General low-frequency vibration table is uniaxial vibration mode, can only test the low-frequency shock transducer performance of single axial.
With the development of test science and technology, two component low-frequency shock transducers are widely applied.To guarantee measuring accuracy, sensing
Device must periodically carry out measurement and calibration work.For two component low-frequency shock transducers, general low-frequency vibration table can only be carried out
The measurement and calibration of single component works, and can not carry out two component coupling measurements, therefore cannot really reflect two component low-frequency vibrations
The actual performance of sensor.
There is presently no the meters that can two component low-frequency shock transducers be carried out with measurement and calibration and two component coupling measurements
Measure calibrator (-ter) unit.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of two component low-frequency vibration tables, are able to carry out two components
Low-frequency vibration is coupled, reliable performance meets and carries out measurement and calibration and the coupling survey of two components to two component low-frequency shock transducers
The requirement of examination.
In order to solve the above-mentioned technical problem, the utility model provides a kind of two component low-frequency vibration tables, including from down toward
On the pedestal, the first platform and the second platform that set gradually；The first guiding axis and are provided between the pedestal and the first platform
One driving assembly, first mesa base are provided with the first air axle sleeve, and the first air axle sleeve is set in the first guiding
On axis, first driving assembly can drive the first platform to move along the first guiding axis；First platform and the second platform
Between be provided with the second guiding axis and the second driving assembly, the bottom of second platform is provided with the second air axle sleeve, described
Two air axle sleeves are set on the second guiding axis, and second driving assembly can drive the second platform to transport along the second guidance set
It is dynamic；First guiding axis is vertically arranged with the second guiding axis.
Preferably, first driving assembly is first straight line motor, the first straight line motor includes matching
The first motor stator and first motor mover of setting, the first motor stator and pedestal are fixedly installed, the first motor
Mover and the first platform are fixedly installed.
Preferably, second driving assembly is second straight line motor, the second straight line motor includes matching
The second motor stator and the second electric mover being arranged, second motor stator and the first platform are fixedly installed, and described second
Electric mover and the second platform are fixedly installed.
Preferably, there are two the first supports, first guiding axis to be arranged at two for fixed setting on the pedestal
Between first support.
Preferably, there are two the second supports, the second guiding axis setting to exist for fixed setting on first platform
Between two the second supports.
Preferably, the upper surface of second platform offers groove body, the groove body bottom is multiple through offering
Mounting hole is provided with the first locating part and the second locating part for abutting sensor in the groove body.
Preferably, first locating part and the second locating part are all L-shaped, first locating part and the second limit
Part is symmetrical arranged relative to sensor.
Preferably, having multiple groove bodies on second platform.
The utility model has the beneficial effects that
1, the utility model drives the first platform to move along the first guiding axis by the first driving assembly, the second driving assembly
The second platform can be driven to move along the second guidance set, and the first guiding axis is vertically arranged with the second guiding axis, to realize
Two component motions of the second platform.
2, the utility model can effectively prevent rubbing, reduce waveform by emptying gas axle sleeve in guiding axis peripheral hardware
The distortion factor improves test accuracy, carries out measurement and calibration and two points particularly suitable for two component low-frequency shock transducers
Measure coupling measurement.
3, the utility model is compact-sized, and stability is good, practical.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is schematic enlarged-scale view of the Fig. 1 in a-quadrant.
Figure label explanation: 10, pedestal；11, the first support；20, the first platform；21, the second support；30, the second platform；
31, groove body；32, mounting hole；33, the first locating part；34, the second locating part；40, the first guiding axis；41, the first air axle sleeve；
42, first motor stator；43, first motor mover；50, the second motor stator；51, the second electric mover；52, the second guiding
Axis；53, the second air axle sleeve；60, sensor.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Referring to Fig.1 shown in-Fig. 2, the utility model discloses a kind of two component low-frequency vibration tables, including from bottom to up according to
The pedestal 10 of secondary setting, the first platform 20 and the second platform 30, pedestal 10, the first platform 20 and the second platform 30 are arranged in parallel.
The first guiding axis 40 and the first driving assembly, 20 bottom of the first platform are provided between pedestal 10 and the first platform 20
It is provided with the first air axle sleeve 41, the first air axle sleeve 41 is set on the first guiding axis 40, and the first driving assembly can drive
First platform 20 is moved along the first guiding axis 40.The second guiding axis 52 and second is provided between first platform 20 and the second platform 30
Driving assembly, the bottom of the second platform 30 are provided with the second air axle sleeve 53, and the second air axle sleeve 53 is set in the second guiding axis
On 52, the second driving assembly can drive the second platform 30 to move along the second guidance set.Air axle sleeve includes a through-hole, and this
Through-hole internal diameter is greater than 0.02~0.03mm of outer diameter of guiding axis.When work, compressed air is passed through in air axle sleeve, i.e., in air axis
Air film is formed in gap between set and guiding axis, makes air axle sleeve and guiding axis in contactless state.Therefore, in the first air
Under the action of axle sleeve 41, friction is small when the first platform 20 is along the axial movement of the first guiding axis 40；In the second air axis
Under the action of set 53, friction is small when the second plane is along the axial movement of the second guiding axis 52.
First guiding axis 40 is vertically arranged with the second guiding axis 52.First support 11 there are two fixed settings on pedestal 10,
First guiding axis 40 is arranged between two the first supports 11.Second support 21 there are two fixed settings on first platform 20, second
Guiding axis 52 is arranged between two the second supports 21.Therefore, under the collective effect of the first driving assembly and the second driving assembly,
Second platform 30 can do the movement of two components.
First driving assembly is first straight line motor, and first straight line motor includes the first motor stator 42 for matching setting
With first motor mover 43, first motor stator 42 and pedestal 10 are fixedly installed, and first motor mover 43 and the first platform 20 are solid
Fixed setting.
Second driving assembly is second straight line motor, and second straight line motor includes the second motor stator 50 for matching setting
With the second electric mover 51, the second motor stator 50 and the first platform 20 are fixedly installed, the second electric mover 51 and the second platform
30 fixed settings.The design of linear motor can save space.Both motor stator and electric mover are contactless structure, fortune
Without friction when dynamic, kinematic accuracy is improved.
Groove body 31 is offered in the upper surface of the second platform 30,31 bottom of groove body, which is run through, offers multiple mounting holes 32, slot
The first locating part 33 and the second locating part 34 for abutting sensor 60 are provided in body 31.Sensor 60 can be locked in by screw
On mounting hole 32.And the first locating part 33 can further fix the side of sensor 60, so that sensor 60 is more steady
Admittedly be fixed on the second platform 30, improve test accuracy.
First locating part 33 and the second locating part 34 are all L-shaped, and the first locating part 33 and the second locating part 34 are relative to biography
Sensor 60 is symmetrical arranged.L-shaped first locating part 33 abuts two sides of sensor 60, and L-shaped second locating part 34 abuts
The another two side of sensor 60 may make sensor 60 more by 34 collective effect of the first locating part 33 and the second locating part
To be stably fixed on the second platform 30.Due under the action of the first driving assembly and the second driving assembly, the second platform
30 take exercises, at this point, if fixed not tight enough of sensor 60, is easy to produce kinematic error, influences measuring accuracy.So, pass through
L-shaped first locating part 33 and the second locating part 34 are set, and sensor is fixed in locating part, so that sensor and second
Table top forms more firm overall structure, reduces sensor vibration error.
There are multiple groove bodies 31 on second platform 30.An all mountable sensor 60 in each groove body 31, to realize
Multiple tests jointly of sensor 60.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (8)
1. a kind of two component low-frequency vibration tables, which is characterized in that including pedestal, the first platform and the set gradually from bottom to up
Two platforms；The first guiding axis and the first driving assembly are provided between the pedestal and the first platform, first mesa base is set
It is equipped with the first air axle sleeve, the first air axle sleeve is set on the first guiding axis, and first driving assembly can drive
First platform is moved along the first guiding axis；The second guiding axis and the second driving group are provided between first platform and the second platform
Part, the bottom of second platform are provided with the second air axle sleeve, and the second air axle sleeve is set on the second guiding axis, institute
Stating the second driving assembly can drive the second platform to move along the second guidance set；First guiding axis and the second guiding axis hang down
Straight setting.
2. two components low-frequency vibration table as described in claim 1, which is characterized in that first driving assembly is first straight line
Motor, the first straight line motor include the first motor stator and first motor mover for matching setting, the first motor
Stator and pedestal are fixedly installed, and the first motor mover and the first platform are fixedly installed.
3. two components low-frequency vibration table as described in claim 1, which is characterized in that second driving assembly is second straight line
Motor, the second straight line motor include the second motor stator and the second electric mover for matching setting, second motor
Stator and the first platform are fixedly installed, and second electric mover and the second platform are fixedly installed.
4. two components low-frequency vibration table as described in claim 1, which is characterized in that there are two for fixed setting on the pedestal
One support, first guiding axis are arranged between two the first supports.
5. two components low-frequency vibration table as described in claim 1, which is characterized in that be fixedly installed two on first platform
A second support, second guiding axis are arranged between two the second supports.
6. two components low-frequency vibration table as described in claim 1, which is characterized in that the upper surface of second platform offers
Groove body, the groove body bottom are provided with the first locating part for abutting sensor through multiple mounting holes are offered in the groove body
With the second locating part.
7. two components low-frequency vibration table as claimed in claim 6, which is characterized in that first locating part and the second locating part
All L-shaped, first locating part and the second locating part are symmetrical arranged relative to sensor.
8. two components low-frequency vibration table as claimed in claim 6, which is characterized in that have multiple slots on second platform
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865186.7U CN208968780U (en) | 2018-11-13 | 2018-11-13 | A kind of two component low-frequency vibration tables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821865186.7U CN208968780U (en) | 2018-11-13 | 2018-11-13 | A kind of two component low-frequency vibration tables |
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| Publication Number | Publication Date |
|---|---|
| CN208968780U true CN208968780U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821865186.7U Active CN208968780U (en) | 2018-11-13 | 2018-11-13 | A kind of two component low-frequency vibration tables |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702946A (en) * | 2019-09-24 | 2020-01-17 | 中国计量科学研究院 | Monocular vision-based low-frequency multi-axis accelerometer sensitivity calibration method |
| CN112763055A (en) * | 2020-12-29 | 2021-05-07 | 江柴发动机徐州有限公司 | Low-frequency vibration detection device of generator set and working method thereof |
-
2018
- 2018-11-13 CN CN201821865186.7U patent/CN208968780U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702946A (en) * | 2019-09-24 | 2020-01-17 | 中国计量科学研究院 | Monocular vision-based low-frequency multi-axis accelerometer sensitivity calibration method |
| CN110702946B (en) * | 2019-09-24 | 2021-11-05 | 中国计量科学研究院 | Monocular vision-based low-frequency multi-axis accelerometer sensitivity calibration method |
| CN112763055A (en) * | 2020-12-29 | 2021-05-07 | 江柴发动机徐州有限公司 | Low-frequency vibration detection device of generator set and working method thereof |
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