The basic composition of the concrete pressure testing machine
The basic composition of the concrete pressure testing machine
The concrete pressure testing machine is mainly used for the compressive strength test of building materials such as bricks, cement mortar and concrete. It can also be used for the mechanical performance test of other materials. The concrete pressure testing machine adopts hydraulic loading, electronic force measurement, load digital display, maximum load retention, and power-off data protection functions. The test data is automatically processed and the test report is printed out. Main technical parameters Pressure testing machine Main structure This machine is mainly composed of the main engine, hydraulic system and force measuring unit. 1. The main engine is mainly composed of upper beam, column, adjusting screw and hand wheel, bearing plate, oil cylinder and piston. There is a movable ball seat between the end of the screw and the upper pressure plate. When the bottom surface of the upper pressure plate contacts the top surface of the test piece during operation, it can automatically adapt to the slight inclination of the height direction of the test piece, so that the two planes are in full contact with each other, so that the piece Even by force. According to the size of the test piece, the handwheel and lead screw can be turned to adjust the test space appropriately. A positioning wire frame is engraved on the top surface of the lower plate to facilitate placing the test piece in the center position. 2. The hydraulic system is composed of hydraulic pump, oil delivery valve, oil return valve, oil tank, oil filter and oil pipe. The hydraulic pump is an axial five-plunger ultra-high pressure pump, which is directly driven by an electric motor. A safety valve is installed on the oil delivery valve. Overload can overflow, which plays a safety role. Operate the oil delivery valve handwheel to adjust the oil intake of the oil cylinder to achieve the required loading rate. Open the oil return valve, so that all the oil in the oil cylinder and the oil pump can flow back to the oil tank. 3. The force measurement unit mainly includes measurement and control system, printer and pressure sensor. 4. Electrical system: consists of a motor, start button, stop button, AC contactor, fuse, etc.
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