Mass and centroid testing system for large centrifugal machine
A testing system and centrifuge technology, applied in the testing of machine/structural components, static/dynamic balance testing, weighing, etc., can solve the problems of low accuracy and complex process, and achieve the effect of improving the measurement accuracy
Pending Publication Date: 2021-04-27
DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND +1
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- Application Information
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Problems solved by technology
[0003] According to the above-mentioned technical problems with complex process and low precision, we provide centrifuge quality and centroid test system
Method used
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Effect test
Embodiment
[0039] As an embodiment of the present invention, a detection method using the above-mentioned system:
[0040] 1. Firstly, the tested part is accurately placed on the large pallet through the positioning spindle and the positioning taper sleeve;
[0041] 2. Lifting hydraulic pressure 1, at this time, jacking up the positioning spindle 2 section, through transmission, jacking up the turntable bearing and the large tray, that is, jacking up the tested piece. Using the method of three-point weighing, place three load cells, drop the tray, make it fully act on the load cells, and read out the data (participate in the calculation).
[0042] Then jack up, take down the load cell, and drop it to make the tested part act on the measuring platform.
[0043] 3. Lift the hydraulic cylinder 2, place the load cell at position 1, drop the hydraulic cylinder 2, make the cantilever act on the load cell, and read out the data;
[0044] 4. Pull out the positioning pin, rotate the tested part t...
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The invention provides a mass and centroid testing system for a large centrifugal machine. The mass and centroid testing system comprises a measuring platform, a sensor and a data collecting and processing system. The measuring platform comprises a base, a cantilever platform with a hinge point, a main shaft lifting mechanism and a tray, the base is used for supporting the measuring platform and is arranged at the bottom; a cantilever platform is connected with the base through a hinge point, and a main shaft lifting mechanism for lifting is arranged in the platform; the tray is arranged above the cantilever platform with the hinge point; the base is connected through welding, and the base is horizontally placed; the base is hinged to the measuring platform through a pin shaft, so that the measuring platform can rotate around a hinge point by 30 degrees and is controlled by a hydraulic cylinder at the front end of the platform. According to the invention, the reference plane of centroid measurement is changed, the measurement precision is improved, and the blank of high-precision measurement of the centroid of a part with large weight, large volume and large turning radius in China is filled.
Description
technical field [0001] The invention relates to the technical field of mass and centroid testing, in particular to a centrifuge mass and centroid testing system. Background technique [0002] At present, there are center-of-mass testing systems for shells in China. Small pieces such as shells adopt the horizontal method, and the radius of rotation along the axis is small; there are also knife-edge method and hanging wire method. However, there is a center of mass test system for shells in China, which is only for light weight and small size equipment, and cannot test heavy weight, large volume, and irregular equipment. Cannonballs and other small parts are horizontally rotated, and the radius of rotation along the axis can be small. However, the arm of a large centrifuge is more than 13 meters long. It is difficult to achieve horizontal rotation around the center, and it is difficult to guarantee the accuracy of vertical measurement. The key is The entire structure and test...
Claims
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Login to View More IPC IPC(8): G01M1/12G01G19/00
CPCG01M1/122G01G19/00
Inventor 焦续伟周健伟芦晶王健
Owner DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND