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An on-site calibration device for a hydraulic displacement servo system

A servo system, on-site calibration technology, applied in the field of geometric measurement, can solve the problem of inability to calibrate hydraulic displacement servo system, and achieve the effect of eliminating disturbance influence, eliminating Abbe error and improving calibration accuracy

Active Publication Date: 2017-04-12
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the current problem that the hydraulic displacement servo system cannot be calibrated on-site and realize the traceability of the on-site displacement, and proposes an on-site calibration device for the hydraulic displacement servo system, which can realize on-site calibration and traceability of the on-site displacement

Method used

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  • An on-site calibration device for a hydraulic displacement servo system
  • An on-site calibration device for a hydraulic displacement servo system
  • An on-site calibration device for a hydraulic displacement servo system

Examples

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Embodiment 1

[0026] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, an on-site calibration device for a hydraulic displacement servo system includes a two-way laser displacement sensor 5, a sensor pose adjustment mechanism 4, a column 2, a laser reflector 7, a magnetic target 6, and a guiding mechanism.

[0027] The two columns 2 are fixedly installed on the diagonally opposite positions of the hydraulic cylinder base, and the bottom of the column 2 is fixed by screws or the bottom of the column 2 is large and heavy enough so that the sensor pose adjustment mechanism can be placed stably, and it is placed directly on the hydraulic cylinder base. Yes, in order to make the device of the present invention highly versatile, the latter is adopted in this embodiment. The column can be made of aluminum profile, cast iron, steel and other materials, and the cross-sectional shape can be a stable shape such as a circle or a square. In addition, in order to facilitate installation a...

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Abstract

The invention relates to a field calibration device for a hydraulic displacement servo system and belongs to the technical field of geometrical measurement. The field calibration device comprises two ways of laser displacement sensors (5), sensor pose adjustment mechanisms (4), stand columns (2), laser reflecting plates (7) and magnetic targets (6) and a working table guiding mechanism, wherein the two stand columns are symmetrically disposed on a hydraulic cylinder base; the sensor pose adjustment mechanisms are mounted on the stand columns through magnetic force; the laser displacement sensors are fixedly mounted on the sensor pose adjustment mechanisms; the laser reflecting plates are disposed on a hydraulic displacement servo system working table; the magnetic targets are attracted to the laser reflecting plates through magnetic force; the working table guiding mechanism is fixedly mounted on the hydraulic cylinder base. Field calibration for the hydraulic displacement servo system can be performed; displacement tracing is achieved; the two ways of laser displacement sensors are symmetrically disposed, so that Abbe errors due to the fact the laser displacement sensors cannot be mounted in the center of a moving axis are effectively eliminated, and the calibration accuracy is improved.

Description

technical field [0001] The invention relates to an on-site calibration device, in particular to an on-site calibration device for a hydraulic displacement servo system, belonging to the technical field of geometric quantity measurement. Background technique [0002] The hydraulic displacement servo system can be used as a vertical motion excitation system to provide a simulated vehicle motion environment, and to study the impact of vibration on vehicle comfort, dynamic loads of various systems, strength and life of parts when the vehicle is running, and can be used for centering, The complete vehicle, related systems, and assembly parts of heavy-duty and off-road vehicles are subjected to simulation tests and routine tests in road and vibration environments. [0003] The hydraulic displacement servo system is a comprehensive test system composed of single or multiple sets of hydraulic cylinders with fixed installation and complex structure. When the servo system is working, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B19/00
Inventor 何小妹王爱军唐志锋李昆王一璋
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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