Specification

roduct introduction

YZW-Y series microcomputer controlled electro-hydraulic servo rock direct shear apparatus is developed in accordance with the national industrial standard (SL264-2001) Code for Rock Tests of Hydroelectric and Water Conservancy Engineering, (JTG E41-2005) Test Methods of Rock for Highway Engineering, and the national standard (GB/T50266-2013) Standard for Test Methods of Engineering Rock Mass, and based on the existing products at home and abroad, the testing machine is the new-generation rock and concrete testing equipment adopting double-circuit electro-hydraulic servo technology to apply loads (or independently adopts one-circuit vertical or horizontal load applying to complete the single-axis loading test requirement), double-sensor technology, microcomputer control and software processing technology, and it can be used for direct shear tests of rock structural surface (such positions as joint surface, bedding surface, schistosity plane and splitting plane), rock and cement planes of concrete or mortar and rock, and shearing strength tests of bonding surfaces of concrete and other materials. The control unit of this machine consists of computer and servo oil pump control system, and it has (normal @ horizontal) stress, (normal @ horizontal) displacement double-circuit double-channel closed control modes, and during the test process, it can realize multi-stage load holding and multi-stage shear tests. The instrument is featured by compact design structure and beautiful style, easy maintenance and convenient operation, and the whole test process can realize automatic control under WIN7 through the microcomputer; it is initiative at home, and at the international advanced level. It is applied to water conservancy and hydropower (geology) survey and junior colleges and other scientific research institutions.
Main technical parameters

Model：YZW-500Y、YZW-1000Y

Normal load P：20~500KN、40-1000kN

Normal overload protection：Exceed 2% of the full load

Normal working travel S：0~100mm

Lateral load Q：20~500KN、40-1000kN

Lateral overload protection：Exceed 2% of the full load

Lateral working travel S：0~150mm

Normal space：≤450mm

Lateral space：≤200mm

Shear load speed V：0.1~30KN/S (adjustable)

Load indication mode：Microcomputer screen display

Load indication accuracy：±1%

Displacement measurement accuracy：±1%

Loading mode：Double-circuit electro-hydraulic servo load applying, full-automatic closed-loop control

Dimension of direct shear box：100×100×100mm ;φ50×50

Motor power：0.75KW

Working voltage：380V/220V

Weight of whole machine：1500Kg

Boundary dimension：1100x702x1800mm