Multifunctional digital display dynamometer

A dynamometer and multifunctional technology, applied in the field of multifunctional digital display dynamometers, can solve problems such as unsuitable work, affecting the stability and correctness of motion, and stability effects, so as to be easy to carry and use on site, and realize replaceable performance and accuracy

Inactive Publication Date: 2008-07-23
SHANDONG PROVINCIAL ACAD OF BUILDING RES
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AI Technical Summary

Problems solved by technology

[0010] 1. During the transmission process, the energy needs to be converted twice, and the transmission efficiency is low
[0011] 2. Due to the influence of factors such as the compressibility and leakage of the transmission medium, as well as the deformation of the cylinder body and the pipeline, the stability and correctness of the movement are affected, so that the hydraulic transmission cannot guarantee a strict transmission ratio, which is manifested as poor stability of the indication value
[0012] 3. Since the piston and the cylinder cannot be completely seamless, the hydraulic oil cannot completely seep back. When the piston does not work, the pressure is not easy to maintain constant
[0013] 4. Hydraulic transmission is sensitive to changes in oil temperature. When the temperature changes, the viscosity of the liquid changes, causing changes in motion characteristics and affecting the stability of the work. Therefore, it is not suitable to work under envi

Method used

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Embodiment Construction

[0046] The existing testing instruments can no longer meet the requirements. In order to improve the testing accuracy and control the loading speed, we invented multifunctional digital force measuring instruments with measuring ranges of 10kN, 20kN, 30kN, and 50kN.

[0047] As shown in Figure 1, Figure 5-8, before testing, determine the measuring range according to the testing items, select the appropriate sensor 4 and reaction support frame 2, the sensors are divided into 1T (10kN), 2T (20kN), 5T (50kN), The reaction force support frame 2 is divided into three-point support and circular support, and the sensor 4 is installed on the reaction force support frame 2 through four positioning bolts on the platform of the reaction force support frame 2 .

[0048] The digital display instrument of the invention is suitable for all resistance strain type load cells, and can be used in conjunction with various range sensors to measure, display and precisely control tension and pressure....

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Abstract

The invention relates to a multifunctional digital display force measuring instrument, which comprises a reverse force holding frame. The multifunctional digital display force measuring instrument is characterized in that: a force applying mechanism with a pull rod is arranged on the reverse force holding frame, the pull rod arranged above the reverse force holding frame is sleeved with a cylinder bushing type pressure sensor and a digital display instrument connected with the cylinder bushing type pressure sensor. The multifunctional digital display force measuring instrument is mainly used for force value inspection in architectural engineering.

Description

technical field [0001] The invention relates to an instrument for detecting force values ​​in construction engineering, in particular to a multifunctional digital display force measuring instrument. Background technique [0002] At present, there are facing brick bond strength testers, carbon fiber bond strength testers, concrete strength testers, anchorage force testers, etc. produced by some manufacturers on the market. These instruments all use hydraulic transmission technology. The basic principle of hydraulic transmission is: the hydraulic cylinder and the one-way valve complete oil suction and oil discharge, and convert the mechanical energy of the lever into the pressure energy of the oil for output. The large hydraulic cylinder converts the pressure energy of the oil into mechanical energy output, and lifts heavy objects. The large and small hydraulic cylinders form the simplest hydraulic transmission system, which realizes the transmission of force and motion. [0...

Claims

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Application Information

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IPC IPC(8): G01L1/08G01N19/04G01N3/00
Inventor 崔士起孔旭文王瑞元赵晶张海宁
Owner SHANDONG PROVINCIAL ACAD OF BUILDING RES
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