Anchor testing machine

This machine is mainly used for static load anchoring efficiency coefficient, ultimate tensile total strain, anchor plate strength and cyclic load performance testing of steel strands and anchors in the construction of railways, highways, bridges, water conservancy and other infrastructure; clamps and connectors.The prestressed anchor components can be tested under servo control conditions according to the standard requirements of GB/T14370-2015 "Anchors and Clamps for Prestressed Tendons".It is a special equipment for factory inspection and type testing of prestressed anchor manufacturers, on-site acceptance of anchors by large project users, and product quality supervision departments for testing prestressed anchor assemblies.This equipment consists of a wide speed range digital servo valve and microcomputer measurement and control technology to form a fully automatic closed-loop speed control system, which can accurately control and measure the entire test process.This testing machine is designed and manufactured in accordance with national standards such as GB/T14370-2015 "Anchors, Clamps and Connectors for Prestressed Tendons" and GB/T2611-2007 "General Technical Conditions for Testing Machines". The whole machine consists of a horizontal main engine, high-pressure servo hydraulic source, front card jack, movable high-pressure oil source, and microcomputer measurement and control system.

■ The prestressed anchor components can be tested under servo control conditions as required by the standard GB/T14370-2015 "Anchors, Clamps and Connectors for Prestressed Tendons".

■It has two control channels of load and displacement and three corresponding control modes of force, stress and displacement. The control modes can be switched randomly/arbitrarily.PID parameters can be adjusted online.

■Can carry out constant rate load, stress, displacement control and constant load, stress, displacement control and adopt stepless speed regulation.

■Automatically draw various test curves such as force-displacement, force-time, displacement-time, etc., automatically edit test reports and print them out in a timely manner.

■The measurement system has automatic clearing and automatic calibration functions, and the measurement is continuous and not divided into stages.

■Can conduct group style multi-color curve comparison tests, and select any segment on the test curve for regional enlargement analysis. During the test process, various test curves can be switched to display.

■It has a powerful database and a variety of interface formats for users to choose from to help users achieve local area network communication.

■With original test parameter input function.It has various protection measures such as pressure and piston limit.

■The cylinder piston pair (tensioner jack) is a high-pressure through-core type and can withstand pressure >50MPa.

■The protective component is divided into two parts: protective mesh cover and movable sand retaining wall.The protective grille is made of steel and metal mesh and is installed on the upper part and both sides of the main unit. There are two combinations, left and right.The mobile sand retaining wall is made of welded steel plates, and the lower part is equipped with moving wheels.

Main technical parameters