Seiko Zhizao | LWS-100A Electro-hydraulic Servo Shock Absorber Quality Inspection of Energized Shock Absorber of Indicator Fatigue Testing Machine

In automobile, rail transit, construction machinery and other fields, the performance and durability of shock absorbers, dampers and hydro-pneumatic springs are directly related to the operation safety and use experience of the whole vehicle. In order to accurately control the quality of products, professional testing equipment is essential. Today, I will introduce a LWS-100A electro-hydraulic servo shock absorber indicator fatigue tester made by Jinan Liling Testing Machine Co., Ltd., which has become the mainstream choice for shock absorber testing in the industry with its mature technical framework and comprehensive functional configuration.
I. General situation of equipment:
The equipment adopts dynamic high-frequency response actuator and full digital electro-hydraulic servo controller, and the overall technical framework is mature and the running state is stable. The equipment can carry out dynamic and static comprehensive tests on cylinder shock absorbers, various dampers, combined shock absorbers, oil-gas springs and other samples, covering the mainstream test items in the current industry, including dynamometer test, speed characteristic test, static friction force test, temperature characteristic test, fatigue test and so on. At the same time, it supports sine superposition double-action fatigue test, which can simulate real road conditions, and can also complete special tests such as indicator and stiffness detection of oil-gas springs. The application scenarios are very wide.
Second, the core structure and technical advantages:
Host architecture, stable and durable
The main engine adopts double-column gantry frame, and the moving beam adopts hydraulic lifting and hydraulic clamping design, which can flexibly adjust the test space and adapt to different specifications of samples. The core component, the hydrostatic support linear servo actuator, is arranged downwards. The maximum test force is ±100kN, the effective stroke is ±75mm, the running friction is low, the lateral force resistance is excellent, and the dynamic response is good. Load spoke sensor is equipped under the beam, and the measurement data is stable and reliable.
Hydraulic pump station, stable operation
The supporting constant pressure servo pump station adopts modular design. The working pressure of the system is 21Mpa, the flow rate is 75L/min, and it is equipped with 30KW power motor. The system is equipped with a three-stage filtration device and a two-stage stabilized energy storage structure, with the functions of blocking alarm, liquid level and temperature monitoring, etc., to ensure that precision components such as servo valves work in a clean and stabilized environment. High-quality fittings are selected for pipelines and seals to reduce leakage; Independent water cooling system can ensure long-term continuous operation of equipment.
Intelligent control system, convenient operation
The equipment is equipped with PDTest-PF series full digital hydraulic servo controller, and dual CPU processes control and data management separately to ensure the control accuracy under high-frequency working conditions. The control frequency range is 0.001—30Hz, which can output sine, square wave, triangular wave and other waveforms, support the double closed-loop control mode of force and displacement, and can switch smoothly during operation.
Supporting PF300 series test software, the interface is intuitive, which can display parameters such as displacement, load and cycle times in real time, automatically draw dynamometer curves and force-velocity curves, and support data import, export, report generation and printing. Programming interface is reserved in the software, which can expand functions according to users' needs, and can also customize exclusive operation modules for shock absorbers, air springs and other products.
Multiple protection and safe operation
The whole machine integrates many alarm and shutdown protection functions, such as overload, overtravel, abnormal oil temperature, oil filter blockage, and the number of tests reaching the standard, so as to protect the safety of equipment and operators from hardware to software. At the same time, it is equipped with several sets of special test fixtures, flushing solenoid valves and other accessories to meet the needs of different test conditions.
Third, the core technical parameters:
Maximum test force: ±100kN, indicating accuracy of 1%.
Working frequency range: 0.01-30Hz
Full stroke of actuator: 150mm, indicating accuracy ±0.5FS.
Pump station parameters: pressure 21Mpa, flow rate 75 L/min, motor power 30kW.
Overall dimensions of main engine: about 1200 * 2200 * 2600 mm.
Four, installation, service and enterprise strength:
Equipment installation has standardized requirements for the site, and professional engineers can complete the whole process of hoisting, pipeline connection, no-load and loading debugging, measurement system calibration and so on.
In the after-sales aspect, the equipment will be provided with 12-month free warranty service after acceptance and long-term maintenance support. The after-sales service team responds in time and solves the equipment operation problems quickly. On-site technical training will be carried out simultaneously during the equipment installation stage, and special operation and maintenance training will be arranged after acceptance to help operators get started quickly.
Located in Jinan, Shandong Province, Jinan Liling Testing Machine Co., Ltd. has a standardized production park and a perfect R&D system. The enterprise has obtained many certifications such as ISO9001 quality management system, ISO14001 environmental management system, ISO45001 occupational health and safety management system and CE, and its products and services cover domestic scientific research institutes and manufacturing enterprises, and are exported to many overseas countries and regions.