Electro-hydraulic servo dynamic and static fatigue test system introduction

Beijing Zhongsheng Huaye Technology Co., Ltd." is a high-tech enterprises specializing in the design and production of testing machines, has a number of senior research and development of testing machines, technical backbone have more than 20 years of experience in the design of testing machines, has a very strong research and development capabilities.The company has always been to new product development as the focus of work, so since the establishment of the company, not only developed electronic universal testing machine, electro-hydraulic servo universal testing machine dozen series of products, but also give full play to their own advantages, the non-standard product design and production as the company's core business, for a number of automotive production and testing units, universities and aerospace departments and so on, provides a large number of special testing equipment.

The company's leading products are DSS (dynamic-static-state) series of microcomputer-controlled electro-hydraulic servo static and fatigue test system. This series of products is based on the company's independent research and development of dynamic servo controller and measurement and control software as the core, the use of unitization, standardization, modularization of the design means, and different test machine host, hydraulic station and test accessories with the composition of different functions of the various types of fatigue test system, mainly used for materials, axle parts and components, as well as other assemblies of the loading, bending or torsion fatigue mechanical testing, including full digital multi-channel Coordinated loading test system, axle fatigue test system, torsion fatigue test system and so on.

These test systems can be widely used in many research fields such as aviation, aerospace, railway, vehicles, ships, automobiles, building structures, etc. for testing and evaluating the performance, quality and life of products. The product technology has reached the international advanced and domestic leading level, and has been recognized by many large and famous domestic production enterprises.

The entire test system is based on a horizontally mounted base plate with T-slots on the foundation, and each hydraulic actuator unit is designed as an independent module, using an independently removable portal frame and specialized fixtures. The portal frame is moved into position when required and bolted to the steel floor, while the hydraulic actuator cylinders are mounted on the upper beam of the portal frame or in a dedicated position.

The use of parallel sets of high pressure, high flow, high power oil pump motor unit, with the relevant oil storage, cooling, safety, filtration, electronic control unit, combined into an independent hydraulic pumping station, as the energy to provide the source of each hydraulic action unit. In order to provide a comfortable test environment and reduce operating noise, the hydraulic pump station is placed in an independent closed environment outside the test room, under the floor in the test room laid back to the type of oil pipeline connected to the hydraulic pump station. A number of connections are provided on the piping in the test chamber, and high pressure hoses can be used to transfer hydraulic fluid to the hydraulic actuator when required.

The support part is designed to fit various test specimens and various tests, and is bolted to the iron floor at a suitable position on the lower part of the hydraulic actuator. During the test, the test specimen is placed on the support part, the test control system is activated, and the actuating piston is ejected to provide the test load to the test specimen to complete the whole test process.

Modular structure design can make the testers simple and convenient to build a variety of test platforms, completely independent of the shape of the specimen and the test requirements of the limitations of the random combination of the test system, make full use of the test equipment, to achieve the sharing of resources.