Hydraulic cylinder performance test device
A testing device and hydraulic cylinder technology, which is applied to fluid pressure actuation devices, fluid pressure actuation system testing, mechanical equipment, etc., can solve the problems of signal analysis and processing that cannot be converted, scattered functions of multiple instruments, and low degree of automation. , to reduce the difficulty of test operation, simplify programming tasks, and achieve the effect of high degree of automation
Inactive Publication Date: 2010-09-29
JIANGHAN UNIVERSITY
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Problems solved by technology
[0004] 1. Low degree of automation: At present, the data acquisition card is generally used as the signal conversion device between the computer system and the hydraulic cylinder system, and the converted signal cannot be directly analyzed and processed. The signal analysis and processing function must be completed by computer-aided testing software. The computer system cannot complete the hydraulic cylinder performance test task
[0005] 2. Complex structure and high cost: When displaying sensor signals such as pressure, flow, displacement, and temperature in the hydraulic system, expensive secondary instruments need to be connected externally, and the functions of multiple instruments are scattered, which makes the entire test system complex and costly.
[0006] 3. Plug and play cannot be realized, which makes the computer-aided test work complicated: the data acquisition card needs to be installed on the main board of the host computer and the driver is installed when it is used, and various functions of the data acquisition card must be called when the computer-aided test software is compiled. Application programming interface functions, unable to achieve plug-and-play, making computer-aided testing work complicated
[0007] 4. The task of testing the performance of all hydraulic cylinders cannot be realized: the parameter measurement ranges of different types of hydraulic cylinders are different, and the alarm threshold values are also different. Cylinder Performance Test Tasks
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[0022] Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:
[0023] see figure 1 As shown, the hydraulic cylinder performance test device provided by the present invention includes a microcontroller chip 3 embedded with a control hydraulic cylinder performance test program, a display chip 1 connected to the microcontroller chip 3, a memory chip 2, a watchdog Chip 8, an analog / digital conversion chip 4 for collecting external sensor signals, a digital / analog conversion chip 5, a serial port communication chip 6 and peripheral circuits, are characterized in that: the analog / digital conversion chip 4 is externally connected with signal conditioning for collecting multiple signals The digital / analog conversion chip 5 is externally connected with a servo controller 10 that receives and processes given signals and dither signals for feedback. The channels A / D0-A / D6 of the analog / digital conversion chip 4 are respe...
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The invention discloses a hydraulic cylinder performance test device, which comprises a microcontroller chip, a display chip, a storage chip, a watchdog chip, an analog-to-digital conversion chip, a digital-to-analog conversion chip, a serial port communication chip and a peripheral circuit, wherein program used for controlling the performance test of a hydraulic cylinder is embedded inside the microcontroller chip, the display chip, the storage chip and the watchdog chip are respectively connected with the microcontroller chip, the analog-to-digital conversion chip collects signals of an external sensor, a signal regulator used for collecting multi-path signals is externally connected with the analog-to-digital conversion chip, and a servo controller used for receiving and processing given signals and chatter signals to be used for feedback is externally connected with the digital-to-analog conversion chip. The invention has the advantages of simple structure, high automatic degree and cost reduction, can realize the plug and play effect, has simple program compiling and reduced test operation difficulty, and is suitable for all hydraulic cylinder performance tests.
Description
technical field [0001] The invention relates to the technical field of hydraulic component testing, in particular to a hydraulic cylinder performance testing device. Background technique [0002] The hydraulic cylinder is one of the key components in the hydraulic system. It is widely used in industrial production, and its performance has a direct and important impact on the entire hydraulic system. Because hydraulic cylinders generally work in harsh production environments, with heavy loads, long working hours, and fast response, they are prone to failure. Once the hydraulic cylinder fails without timely and accurate testing and maintenance and replacement, it will affect production at least, and cause safety accidents at worst. Therefore, it is very important to test the performance of hydraulic cylinders. [0003] At present, there are mainly the following problems in the testing of hydraulic cylinders: [0004] 1. Low degree of automation: At present, the data acquisit...
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Inventor易建钢李尧徐传杰曾鹏谭昕彭和平黄卫平沈利霞
OwnerJIANGHAN UNIVERSITY