Hydraulic breaking hammer performance detection device sampling analysis system
A hydraulic breaking hammer, sampling analysis technology, applied in the direction of measuring device, force/torque/work measuring instrument, machine/structural component testing, etc., can solve resistance strain gauge shedding, inaccurate measurement data, and resistance strain gauge response speed Slow and other problems, to achieve the effect of improving the accuracy of measurement
Inactive Publication Date: 2009-01-07
NANYANG KAITIAN ENG MACHINERY +1
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Problems solved by technology
[0002] At present, the known performance detection devices of hydraulic breakers all use resistance strain gauges as sampling elements, and the resistance strain gauges are mounted on the test drill rod during the production process. Very high requirements, generally technical personnel in the field are not competent. In addition, hydraulic breakers of different specifications need to make and mount different resistance strain gauges, which increases the difficulty and complexity of the work.
Moreover, during the test process, the resistance strain gauge often falls off due to the strong impact force of the breaking hammer, so it needs to be remounted.
Furthermore, because the response speed of the resistance strain gauge is too slow to catch up with the running speed of the breaker, the peak value of the impact force of the hydraulic breaker cannot be accurately measured, which directly leads to inaccurate measurement data
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[0015] Such as figure 2 As shown, as the second embodiment of the present invention, a flow transmitter FC and another pressure transmitter PC are arranged in parallel between the inlet pipe of the pressure sensor and the data acquisition card 1 . After the pressure sensor of the hitting piston is hit by the breaker, the hitting piston turns the hydraulic oil in the cylinder into high-pressure oil, and the pressure sensor converts the pressure into a pressure sensing signal, which is transmitted through the pressure transmitter PC 2 The pressure sensing signal is converted into a pressure data signal and transmitted to the data acquisition card. After the data acquisition card collects the pressure data signal, it is transmitted to the industrial computer, and the industrial computer displays and calculates the data signal. The flow transmitter FC converts the hydraulic oil flow of the pressure sensor inlet pipe into a flow data signal and transmits it to the data acquisitio...
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The invention discloses a sampling and analyzing system of performance testing device of hydraulic breaking hammer. The sampling and analyzing system comprises a pressure sensor with a striking piston, a pressure transmitter PC2 which is arranged on the outlet pipe of the pressure sensor, a data acquisition card which is connected with the pressure transmitter, a work controlling machine which is used for displaying and calculating the data signals of the data acquisition card, and a stored oil discharging mechanism. One end of the stored oil discharging mechanism is communicated with the outlet pipe of the pressure sensor, and the other end is communicated with the inlet pipe of the pressure sensor through a non-reversing valve. Because the pressure sensor is used for measuring the impact of the hydraulic breaking hammer, the sampling and analyzing system solves the problem of difficult pasting of the electric resistance strain gage, improves the accuracy of measurement. The data acquisition card and the work controlling table can be used for direct and clear on-line measurement, display and calculation of the impact of the hydraulic breaking hammer.
Description
technical field [0001] The invention relates to a performance detection device of a hydraulic breaker, in particular to a sampling analysis system of the performance detection device of a hydraulic breaker. Background technique [0002] At present, the known performance detection devices of hydraulic breakers all use resistance strain gauges as sampling elements, and the resistance strain gauges are mounted on the test drill rod during the production process. The requirements are very high, and generally technical personnel in the field are not competent. In addition, hydraulic breakers of different specifications need to make and mount different resistance strain gauges, which increases the difficulty and complexity of the work. Moreover, during the test process, the resistance strain gauges often fall off due to the powerful impact force of the breaking hammer, which requires remounting. Furthermore, because the response speed of the resistance strain gauge is too slow to...
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IPC IPC(8): G01M19/00G01L5/00G01M99/00
Inventor 陈祥光杨旭温玉民
Owner NANYANG KAITIAN ENG MACHINERY