Development of high round spring test bench. The development of the target high-circle spring test rig should be able to complete the following test items: (1) vertical fatigue test of high round spring and rubber metal parts (rubber pile); (2) horizontal direction of high round spring and rubber metal parts (rubber pile) Fatigue test; (3) vertical and transverse composite fatigue test of high round spring; (4) fatigue test of ordinary spring (including round spring, leaf spring); (5) high round spring and rubber metal parts (rubber pile) Vertical stiffness test (including dynamic and static); (6) lateral stiffness test of high round spring and rubber metal parts (rubber pile) (including dynamic and static); (7) stress test of high round spring (including dynamic and static) (8) Comprehensive test and test of hydraulic shock absorbers. The main research contents are to design and manufacture the main components of the test bench: (1) the main structure of the test bench; (2) high-voltage power source; (3) electro-hydraulic servo control system; (4) lateral swing mechanism of test bench; ) excitation device; (6) data acquisition and data processing system of the test bench. Main technical indicators (1) Maximum test height (spring height) 1000mm (2) Vertical stroke range 0～±100mm (3) Lateral swing range 0～±100mm (4) Maximum vertical excitation force 30t (5) Maximum lateral direction Excitation force 10t (6) Vertical excitation frequency range 0～30Hz (7) Lateral oscillation frequency range 0～1.3Hz The test method for high-vehicle spring fatigue performance of rolling stock should include high round spring vertical and lateral fatigue test and Composite fatigue test; dynamic, static vertical, lateral stiffness test, dynamic and static stress test; elastic components such as rubber metal parts (such as spring elastic positioning seat, side bearing, rubber pile, etc.) for corresponding dynamic and static performance tests and Test and damping method test method for damper. The basic composition and main technical indicators of the test bench The high-circle spring test bench for the locomotive is a set of electro-hydraulic servo control loading test system for data acquisition and data processing by computer. The power unit, control unit, execution unit and data acquisition and data are provided. The processing unit is composed of four parts, and the execution unit execution unit is composed of an electro-hydraulic servo actuator, a slide table, a main frame and an auxiliary frame. The slide is used to set the lateral displacement or to load laterally. The generation of power and motion is accomplished by a lateral oscillating device. Speed ​​control is done by the inverter. The electro-hydraulic servo actuator electro-hydraulic servo actuator is the core of the actuator. The vertical fatigue test and dynamic and static performance test of the high-circle spring and rubber parts (rubber pile) and the comprehensive test of the hydraulic shock absorber rely on it. To be done. The electro-hydraulic servo actuator uses the LS series single rod actuator. In order to meet different test requirements, 10t, 20t, 30t and 3t specifications were selected. The first three specifications of electro-hydraulic servo actuators are mainly used for the testing of high-circle springs and rubber metal parts, all of which use double-ball joints to ensure that the force of the actuator is maintained in the axial direction (equivalent to the two-bar Forced); The latter specification electro-hydraulic servo actuator suspension is mainly used for the comprehensive test of hydraulic shock absorbers. The slide table slide is an important accessory for the lateral movement and lateral loading devices in the actuator unit. The lateral fatigue test and performance test of the high round spring and rubber metal parts (rubber pile) are all done by it. The sliding table adopts the structural form of the linear sliding pedestal, which is mainly composed of the base, the left and right guide rails, the linear roller plane bearing and the sliding seat. Its main technical indexes are: the sliding table size is 500mm×400mm×150mm and the maximum static load is 50t maximum. Dynamic load 2/3 maximum static load maximum stroke ± 100mm. The main frame and the main frame of the auxiliary frame are the main body of the execution unit, the development and research of the high round spring and high-round spring performance test bench of the rubber gold 11 locomotive, the vertical and lateral fatigue test of the component (rubber pile) and dynamic and static Performance testing is performed within its main structure. The auxiliary frame is used for comprehensive testing of hydraulic shock absorbers. The main frame is mainly composed of a top beam, a beam, left and right columns and a pedestal. The top beam, the beam, the left and right columns and the base are box-shaped structures with good rigidity, and their closed structure can withstand 30t impact force. Will not affect the normal operation of peripheral devices. The top beam overlaps the left and right uprights from the top and is free to adjust the height. The flange at the bottom of the top beam can be connected to 10t, 20t, 30t three types of electro-hydraulic servo actuators to meet different test requirements. HDPE Winding Reinforced Structural Pipe
HDPE wound structural wall B-type pipe
produced by our company uses high density polyethylene (HDPE) material and is
produced in accordance with the latest Chinese standard GB / t19472.2-2017. The products are widely used in hydraulic
engineering, municipal engineering, construction engineering, communication
engineering, industrial sewage and drainage, agricultural irrigation, road
drainage, mine drainage, air supply and ventilation, etc.
HDPE Structural Pipe SN8 DN800, HDPE Structural Pipe SN12.5 DN800, HDPE Structural Pipe SN8 DN700, HDPE Structural Pipe SN12.5 DN700, HDPE Structural Pipe SN8 DN1000 Zhoushan Runchun Import & Export Co., Ltd. , https://www.en124casting.com
