Electric-hydraulic hybrid anti-rupture anti-compression synchronous test machine

Abstract

The invention discloses an electric-hydraulic hybrid anti-rupture anti-compression synchronous test machine, and relates to a test instrument for anti-rupture and anti-compression materials. The test machine mainly comprises an electric hydraulic cylinder, an anti-compression oil cylinder, an anti-rupture beam, an anti-compression beam, a reducing valve, a digital valve, an oil tank, an oil pump, a double-action bearing test table, a data control program, a servo controller, a host computer and a display. Double actions are accomplished under control of a computer; a load sensor measures forces with a small error, and the measurement with good stability is not influenced by the oil temperature of the oil cylinder. The anti-compression and anti-rupture test can be simultaneously performed, or separately performed. The invention solves conventional problems that an anti-rupture anti-compression synchronous test machine in the prior art has a heavy structure, and is not agilely operated; the anti-rupture test and anti-compression tests cannot be performed simultaneously; and the oil of the anti-rupture test and the oil of the anti-compression test influence with each other when anti-rupture and anti-compression oil paths share one oil cylinder so that the test machine is promoted in work efficiency and measuring accuracy and noise is effectively reduced.

Description

technical field [0001] The patented electric-hydraulic hybrid anti-bending and anti-compression synchronous testing machine belongs to the field of construction engineering and relates to an anti-fracture and anti-compression material testing instrument. Background technique [0002] The anti-bending and compression parts of the current technology anti-bending and compression testing machine are all hydraulic cylinder structures. The power part of the same oil source needs to control not only the large-tonnage compression part, but also the small-tonnage anti-bending part. The tonnage of the anti-bending part is small, the oil pressure is low, and it is sensitive to oil temperature and leakage, which often results in poor control effect and low control accuracy of the anti-bending part. [0003] Traditional flexural and compressive testing machines cannot perform flexural and compressive tests at the same time, but can only perform compressive or flexural tests alone. The te...

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Problems solved by technology

[0002] The anti-bending and compression parts of the current technology anti-bending and compression testing machine are all hydraulic cylinder structures. The power part of the same oil source needs to control not only the large-tonnage compression part, but also the small-tonnage anti-bending part. The tonnage of the anti-bending part is small, the oil pressure is low, and it is sensitive to oil temperature and leakage, which often results in poor control effect and low control accuracy of the anti-bending part

[0003] Traditional flexural and compressive testing machines cannot perform flexural and compressive tests at the same time, but can only perform compressive or flexural tests alone. The test operation steps are many, the operation is cumbersome, the operator is prone to fatigue, and the failure rate is high. When working all the way, The other channel is idle, and the utilization rate of the machine is low

[0004] The flexural and compressive testing machine of the current technology, the flexural and compressive testing machine shares a hydraulic oil tank. During the test, oil leakage and pollution in one way will affect the working stability of the other way.

If two fuel tanks are used, the volume of the test bench is too large, it is inconvenient to carry, and it takes up too much space

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