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Novel mechanical force measuring machine and calibration method

A mechanical, dynamometer technology, applied in the field of measuring instruments, can solve the problems of inconvenient installation and maintenance of the power mechanism, and the easy damage of the cycloidal pinwheel reducer, so as to reduce the volume and weight, improve the accuracy and reduce the cost. Effect

Inactive Publication Date: 2012-05-30
DALIAN CHUANGDA TECH TRADE MARKET
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Problems solved by technology

[0008] In order to overcome the major defects that the cycloidal pinwheel reducer in the above-mentioned side force equipment is installed upside down and is easily damaged, and the installation and maintenance of the power mechanism are extremely inconvenient, the present invention provides a high-precision mechanical (non-hydraulic) force measuring machine and the testing machine. tool calibration method

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  • Novel mechanical force measuring machine and calibration method
  • Novel mechanical force measuring machine and calibration method
  • Novel mechanical force measuring machine and calibration method

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, the present invention is described:

[0022] The high-precision mechanical lateral force machine is composed of a body, a frame, a load cell group 2 , a power mechanism, a pressurizing mechanism, a compression displacement doubling mechanism and an operating instrument 13 . The body is composed of a base 1 and a load-bearing platform 3, and a sensor group 2 composed of four load cells is placed between the base 1 and the load-bearing platform 3; the four-column frame 8 is on the top of the load-bearing platform 3; Between the table tops of the load-bearing platform 3, there is a compression displacement multiplication mechanism composed of four disc spring groups 4: a clamping mechanism composed of an adjusting screw 12, a handle 10 and an upper clamp 9 is installed on the beam 11 of the four-column frame. Adjust the corresponding position according to the size of the measured object. The clamping mechanism can also rotate...

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Abstract

The invention belongs to the field of measuring instruments, in particular to a large mechanical force measuring machine. The novel mechanical force measuring machine mainly consists of a machine body, a frame, a weighing sensor set, a power mechanism, a pressurizing mechanism, a compression displacement multiplication mechanism and an operating instrument, wherein the power mechanism is composed of a stepper motor and a cycloidal-pin wheel decelerator and fixed above a base of the machine body; the pressurizing mechanism is composed of a pressurizing screw rod and a screw nut, and a forced direction of the pressurizing mechanism is changed by a force transmission lever; for bringing convenience to calibration work of the force measuring machine, an integrated package-type frame is composed of a frame with four upright posts and the compression displacement multiplication mechanism on a surface of a bearing table; and the displacement of the frame is increased by ten times in comparison with the deformation of a sensor per se by compressing a disc spring in the compression displacement multiplication mechanism to shrink under pressure. In an embodiment of the invention, a measurement precision value can easily reach 1 / 640,000.

Description

technical field [0001] The invention belongs to the field of measuring instruments, in particular to a large-scale mechanical (non-hydraulic) force measuring machine. Background technique [0002] As we all know, large-scale high-precision lateral force machines usually use high-precision standard weights (each 1t). When weighing tens of tons, the size of the weights is large, requiring high equipment and environmental conditions. This type of side force machine is bulky, as high as several floors, and weighs tens of tons or even more than 100 tons, and the price is very high. [0003] There is also a common comparison type lateral force machine, which is measured by a single high-precision load cell as a standard after being pressurized by hydraulic equipment. Due to the inevitable impact of hydraulic source motor vibration, hydraulic pressure fluctuations and hydraulic leakage, as well as the constraints of a single load cell error, this type of side force machine has lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/08G01L25/00
Inventor 董海
Owner DALIAN CHUANGDA TECH TRADE MARKET
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