Solution to the buffer problem of hydraulic universal machine

Hydraulic universal testing machineIt is used in large test forces and is widely used in the steel casting industry. Different models are divided by different test forces, and different attachments can be configured to perform different tests. The following are the solutions to the buffer problem provided by Hengsi Shanda:

Normally, just rotate the buffer to the appropriate position. However, if the oil hole of the buffer is blocked, or the steel ball of the buffer valve has a stolen property with the inlet contact part or the gap is too large, the buffer will fail. The solution is to clean the buffer valve and adjust the gap between the steel ball and the valve seat.0.5mmabout. Place the oil needle knob to reduce the gap between the oil needle and the valve body, and relist itA.B.CThe sign of the weight. Also, when the temperature has a great influence, the oil can be replaced appropriately. Most deformation units now use single chiptwenty fourBit ultra-low noise analog-to-digital converter, this chipset signal amplification,A/DConvert in one. Since this deformation unit has“With a single chip as the core, few peripheral circuits”Therefore, this system has the characteristics of high accuracy, good stability performance, small linear error, and strong anti-interference ability. Reasonable design and good process layout make the amplifier extremely stable. Its monolithic computer unit connected to the amplifier, as the heart of the host, is responsible for the amplifier range conversion, data acquisition, data transmission, test method selection and LCD display of the entire machine, and the digital quantization of direct reading, and at the same time, the data can be passed throughRS232Port output, throughRS232The port can also accept instructions from other devices. Due to the use of single-chip computer control, this unit has the function of automatically zeroing. When zeroing, you only need to press the clear key on the main interface to automatically clear the entire process, and the clearing time is extremely short. High-pressure hydraulic source is used as the power source. Manual valve, servo valve or proportional valve are used as control elements for control. Hydraulic universalMaterial testing machineIt can only be manually loaded, which belongs to an open-loop control system. Affected by price factors, the force sensor generally uses hydraulic pressure sensors. Electro-hydraulic servo hydraulic universal material testing machines use servo valves or proportional valves as control components for control, and some domestic manufacturers have also used high-precision load sensors to measure force. Therefore, it is cleaner and more convenient to use and maintain. Its test speed range can be adjusted and the test speed can be reached0.001mm/min-1000mm/min, speed ratio can reach100As many as ten thousand times, the test itinerary can be determined according to needs, making it more flexible.

The above isHydraulic universal testing machineI hope it will be helpful to customers.