Device and method for measuring object mass center

A measuring device and center-of-mass technology, which is applied in the direction of measuring device, measuring force, vehicle testing, etc., can solve problems such as inconvenient installation, inconvenient operation, and complex structure of mechanical devices, and achieve easy error, simple device structure, and quick operation Effect

Inactive Publication Date: 2009-04-22
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its shortcomings are that it is not suitable for complex objects such as automobile powertrains, lacks the relationship with the reference coordinate system of the entire vehicle, and has complex mechanical device structures, inconvenient installation and operation

Method used

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  • Device and method for measuring object mass center
  • Device and method for measuring object mass center
  • Device and method for measuring object mass center

Examples

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Embodiment Construction

[0041] Example figure 1 , 2 As shown, a device for measuring the center of mass of an object is composed of three load cells 3, a measuring table 5, a triangular base 2, a height-adjustable support foot 1, and a computer. The three load cells are electrically connected to the computer. Three height-adjustable supporting feet 1 are respectively installed under the three corners of the triangular base 2, and three load cells 3 are installed on the three corners, and the three load cells are precisely positioned, and the position points are respectively A, B, C, distributed in an equilateral triangle; a measuring table is arranged on the three load cells, and the level of this table needs to be adjusted during measurement. A scale is engraved on the table to establish rectangular coordinates. The load cell achieves point contact with the horizontal surface for precise positioning. When installing the measured object, in order to protect the three force sensors from excessive ...

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Abstract

A device for measuring the mass center of an object consists of weighing sensors, a measuring table, a tribrach, supporting legs and a computer. Three height adjustable supporting legs are arranged below three feet of the tribrach, three weighting sensors are arranged on the three feet, the three weighting sensors are accurately positioned, and the position points are respectively A, B and C which take an equiangular triangle distribution; the measuring table is arranged on the three weighting sensors, and needs leveling during measurement, the table is marked with marking scales, and rectangular coordinates are established; and three protective supporting studs are also arranged between the tribrach and the measuring table. The three points of A, B and C bear different forces when an object to be measured is put on a horizontal table, the 2D coordinates of the mass center of the measured object are obtained by moment balance calculation, and the 3D coordinate of the mass center can be obtained only by measuring the 2D coordinates of the mass center after the measured object is turned by 90 degrees. The mass center can be obtained quickly and reliably by adopting the computer to acquire and process data.

Description

technical field [0001] The invention relates to a device and method for measuring the center of mass of an object, in particular to a device and method for measuring the center of mass of an automobile power assembly. Background technique [0002] The position of the center of mass of an object is a basic property of the object. For example, the coordinates of the center of mass of the automobile powertrain are directly related to the design and layout of the engine mount. Therefore, it is of great significance to accurately measure the coordinates of the center of mass of the automobile powertrain. Automotive powertrain refers to all automotive components including the engine, gearbox and the rigid connection between the two. It is the core part of the car, its performance directly affects the various performances of the car, and the position and installation method of the suspension point are also directly related to the vibration performance of the car. The center of mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/12G01M17/00G01L1/00
Inventor 阳轩铎张厚平郭喜晨
Owner CHERY AUTOMOBILE CO LTD
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