Extreme Research on the Order Motion of the Hoisting Two-Stage Hydraulic Cylinder

2015 ◽  
Vol 727-728 ◽  
pp. 430-434
Author(s):  
Cheng Liang Li ◽  
Ming Su ◽  
Zhi Ping Xie

The motion order of thehoisting two-stage hydraulic cylinder will be affected by load. The paperresearches the script development of the AMESim based on python language, putsforward the numerical method of solving the maximum load of the hoistingtwo-stage hydraulic cylinder in the hydraulic system: set the preliminaryvalue, compare the simulation results whether the displacements of thetwo-stage hydraulic cylinder are equal, adopt "the dichotomy" theoryto iterate and in the end seek out the maximum load quickly. And paves a newvenue for predicting the maximum load two-stage hydraulic cylinder canwithstand in the hydraulic system design stage.

2013 ◽  
Vol 300-301 ◽  
pp. 10-13
Author(s):  
Yuan Hui Li ◽  
Kui Sheng Chen ◽  
Jiang Hong Deng ◽  
Xin Yuan Chen

Rake-car’s driving system of ore reclaimer originally used crank and connecting rod mechanism as driving mechanism. The driving mechanism got some trouble that parts got severe wear and failure rate of mechanism was high. The hydraulic system is used to drive rake car in view of hydraulic driving system’s advantage. By analysis on existing problem of crank and connecting rod mechanism, the actual working load of equipment is tested and the working situation is analysed. The working situation of the hydraulic system is also analysed by computer simulation. By optimization of the hydraulic system design, the final design is determined. The whole system is actually used. It works well.


2014 ◽  
Vol 7 (4) ◽  
pp. 150-155
Author(s):  
Ye HUANG ◽  
◽  
Changsheng LIU ◽  
Shiongur Bamed ◽  
◽  
...  

2011 ◽  
Vol 383-390 ◽  
pp. 1202-1207
Author(s):  
Tao Ping Yan

3201Z-type dump truck is modification desiged by EQ3208GJ dump truck chassis which the technical performance parameters are known, and using a lifting mechanism of air controlled hydraulic system. By analyzing the composition and working principle of air controlled hydraulic system and referring to similar models, the design of the tank, the limiting mechanism and power taker are conducted. By calculating the main technical parameters, including in the performances of the hydraulic cylinder and the hydraulic pump, the dump truck's special oil cylinder HG-E180X780 and gear pump CBT-E563 are selected. By the stability of the piston rod, the system pressure and cars lifting time are checked; the reasonability and safty of the design can be proved.


2012 ◽  
Vol 170-173 ◽  
pp. 1920-1925
Author(s):  
Chang Ge Fan ◽  
Fa Lin Zeng ◽  
De Hua Li ◽  
Lei Liu

The working principle of concrete pumping hydraulic system was analyzed. And base on the AMESim software, the complete simulation model of concrete pumping hydraulic system was built. A simulation was made to get the dynamic characteristics curve of hydraulic cylinder velocity and displacement at some specific conditions. The simulation results indicate that the model is reasonable. Comparative simulations of the pumping hydraulic system with different positions of buffer structure were carried out to study the relationship between buffer effect and the buffer position which can be used to provide theory basis for deeper study of the hydraulic shock.


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