CN204202810U - Dynamic force calibrating installation - Google Patents
Dynamic force calibrating installation Download PDFInfo
- Publication number
- CN204202810U CN204202810U CN201420551733.XU CN201420551733U CN204202810U CN 204202810 U CN204202810 U CN 204202810U CN 201420551733 U CN201420551733 U CN 201420551733U CN 204202810 U CN204202810 U CN 204202810U
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- dynamic force
- footstock
- drive link
- calibrating installation
- hole
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Abstract
The utility model discloses dynamic force calibrating installation, relate to dynamics experimental device, be specifically related to the dynamic force calibrating installation that electro-hydraulic servo drives.Comprise base (2), weights (3), dynamic force sensor (4), column (5), footstock (6) and drive link (8); Footstock (6) is arranged at directly over base (2), footstock (6) is along the circumferential direction provided with at least three columns (5) above, and column (5) upper end is fixedly connected in the through hole on footstock (6); The upper center of footstock (6) is provided with the through hole of a up/down perforation, drive link (8) is arranged in through hole, drive link (8) upper end connects top cover (7), drive link (8) lower end is provided with dynamic force sensor (4), and dynamic force sensor (4) connects weights (3) below.There is low, the baroque problem of precision in the dynamic force calibrating installation that the utility model solves the driving of existing electro-hydraulic servo.
Description
Technical field
The utility model relates to dynamics experimental device, is specifically related to the dynamic force calibrating installation that electro-hydraulic servo drives.
Background technology
There is low, the baroque problem of precision in the dynamic force calibrating installation that existing electro-hydraulic servo drives.
Summary of the invention
The utility model provides dynamic force calibrating installation, and the dynamic force calibrating installation that the utility model solves the driving of existing electro-hydraulic servo exists low, the baroque problem of precision.
For solving the problem, the utility model adopts following technical scheme: dynamic force calibrating installation, comprises base 2, weights 3, dynamic force sensor 4, column 5, footstock 6 and drive link 8; Footstock 6 is arranged at directly over base 2, and footstock 6 is along the circumferential direction provided with at least three columns 5 above, and column 5 upper end is fixedly connected in the through hole on footstock 6; On footstock 6, center is provided with the through hole of a up/down perforation, and drive link 8 is arranged in through hole, and drive link 8 upper end connects top cover 7, and drive link 8 lower end is provided with dynamic force sensor 4, and dynamic force sensor 4 connects weights 3 below.
Dynamic force calibrating installation of the present utility model can realize load, displacement, distortion three kinds of control modes to realize tracing to the source of dynamic force.The utility model, according to the definition of Newton second law to power, realizes the calibration of dynamic force, realizes the on-line system dynamic calibration of fatigue tester.It is simple that the utility model has structure, and measurement data is advantage accurately.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Symbol description in figure: bearing 1, base 2, weights 3, dynamic force sensor 4, column 5, footstock 6, top cover 7, drive link 8.
Embodiment
By best embodiment, the utility model is described in detail below
.
As shown in Figure 1, dynamic force calibrating installation, comprises base 2, weights 3, dynamic force sensor 4, column 5, footstock 6 and drive link 8; Bearing 1 is installed below base.Footstock 6 is arranged at directly over base 2, and footstock 6 is along the circumferential direction provided with three columns 5 above, and column 5 upper end is connected in the through hole on footstock 6, and through hole side arranges screw and fixed by column.On footstock 6, center is provided with the through hole of a up/down perforation, and drive link 8 is arranged in through hole, and drive link 8 upper end connects top cover 7, top cover endoporus and drive link wringing fit.Drive link 8 lower end is provided with dynamic force sensor 4, and dynamic force sensor 4 connects weights 3 below, and weights is that suspension type is arranged.
The utility model can be used for the dynamic force calibration that electro-hydraulic servo drives, its basic functional principle is similar to Tank and Armoured Vehicle fatigue test of materials platform, the key distinction is to have carried out perfect design to the frequency response of whole dynamic system, the control accuracy in the steady-state sine dynamic force source that electro-hydraulic servo drives, main machine structure and technical indicator are more suitable for measurement and calibration.Concrete difference comprises the intensity in steady-state sine dynamic force source, fatigue and rigidity Design; The selection design of dynamic force sensor; Increase the accelerometer being used for acceleration analysis; The structural design of main frame; The selection design of servo-valve and actuator; The control design case of servo-drive system; The Dynamic controlling accuracy of control system; The reliability design in steady-state sine dynamic force source and Anti-interference Design etc.
The steady-state sine dynamic force source that electro-hydraulic servo drives determines along with the development of electro-hydraulic servo technology to design to use.Because it can provide dynamic high and low cycle fatigue power source, the tired power source of programmed control, also can use as the power source under the constant speed of static state, constant strain, constant stress controlled, vibration and the impulsive force source of part also can be provided as required, therefore have the advantage can not compared in the power source of other any kind, this device have selected this kind of power source.
The utility model technical indicator: steady-state sine dynamic force scope is (1 ~ 50) kN; Frequency range is (0 ~ 50) Hz.
The utility model adopts steady-state sine dynamic force source to drive dynamic force sensor, can also utilize the dynamic measuring instrument stable state of motion of accelerometer and data acquisition process unit composition, realize the demarcation of dynamic measuring instrument.
Last it is noted that obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (1)
1. dynamic force calibrating installation, is characterized in that, comprises base (2), weights (3), dynamic force sensor (4), column (5), footstock (6) and drive link (8); Footstock (6) is arranged at directly over base (2), footstock (6) is along the circumferential direction provided with at least three columns (5) above, and column (5) upper end is fixedly connected in the through hole on footstock (6); The upper center of footstock (6) is provided with the through hole of a up/down perforation, drive link (8) is arranged in through hole, drive link (8) upper end connects top cover (7), drive link (8) lower end is provided with dynamic force sensor (4), and dynamic force sensor (4) connects weights (3) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551733.XU CN204202810U (en) | 2014-09-25 | 2014-09-25 | Dynamic force calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420551733.XU CN204202810U (en) | 2014-09-25 | 2014-09-25 | Dynamic force calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204202810U true CN204202810U (en) | 2015-03-11 |
Family
ID=52660755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420551733.XU Expired - Fee Related CN204202810U (en) | 2014-09-25 | 2014-09-25 | Dynamic force calibrating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204202810U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716786A (en) * | 2016-01-13 | 2016-06-29 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibration apparatus special-purpose counterweight and loading method |
| CN106894453A (en) * | 2015-12-18 | 2017-06-27 | 中国计量学院 | A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument |
| CN110082029A (en) * | 2019-04-19 | 2019-08-02 | 天津大学 | A kind of PVDF piezoelectric film sensor dynamic characteristics scaling method |
-
2014
- 2014-09-25 CN CN201420551733.XU patent/CN204202810U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894453A (en) * | 2015-12-18 | 2017-06-27 | 中国计量学院 | A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument |
| CN106894453B (en) * | 2015-12-18 | 2018-12-11 | 中国计量学院 | A kind of dynamic strain calibrating installation of foundation pile movable measurement instrument |
| CN105716786A (en) * | 2016-01-13 | 2016-06-29 | 黑龙江华安精益计量技术研究院有限公司 | Dynamic force calibration apparatus special-purpose counterweight and loading method |
| CN110082029A (en) * | 2019-04-19 | 2019-08-02 | 天津大学 | A kind of PVDF piezoelectric film sensor dynamic characteristics scaling method |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20200925 |