Jiangsu Huatong Kinetics Co.

Jiang’an, China

Jiangsu Huatong Kinetics Co.

Jiang’an, China
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Zhao-Xia H.,China University of Technology | Zhao-Xia H.,Jiangsu Huatong Kinetics Co. | Qing-Tao L.,China University of Technology | Le-Hao C.,Northwestern Polytechnical University
Sensors and Transducers | Year: 2014

A dynamics model of vibration screen for asphalt mixing equipment is established in order to investigate the working performance of the system, which combines the lumped parameter method and substructure method in this paper. In order to acquire accurate results, the spring support stiffness, bearing stiffness and torsional stiffness of connecting link are considered in this model. The mass and stiffness matrixes of link are transformed to the master nodes according to the substructure method. Then the part is combined with the whole dynamics model by support points. Furthermore, the differential equations of motion are given by the Newton Second Law, and it is solved by Newmark time integration method. The centroid trajectory of vibrating screen is computed. At the same time, the reaction force of support springs and bearings are also acquired. And the strength of the product can meet the requirements of design by simulations. A vibration experiment is executed in factory, and the dynamics model is validated by comparing the results. © 2014 IFSA Publishing, S. L.

Zhaoxia H.,China University of Technology | Zhaoxia H.,Jiangsu Huatong Kinetics Co. | Qingtao L.,China University of Technology | Lehao C.,China University of Technology | Jinsong W.,Jiangsu Huatong Kinetics Co.
Open Mechanical Engineering Journal | Year: 2014

The vibration characteristics of a high-speed planetary gear transmission (PGT) are studied in this paper. A transverse-torsional coupling dynamic model is developed using lumped parameter method. In order to ensure the accuracy of the analysis model, the mesh stiffness, support stiffness and the influence of eccentric masses on system are also considered. By solving the eigenvalue of differential equations of motion, the natural frequencies and mode shapes are calculated. According to the vibration modes of this gear transmission, the characteristics of translational mode and torsional mode are described in details. The influence of mesh stiffness, support stiffness and modal modes are discussed by adopting strain and kinetic energy. © 2014, Zhaoxia et al.; Licensee Bentham Open.

He Z.,Chang'an University | He Z.,Jiangsu Huatong Kinetics Co. | Chang L.,Northwestern Polytechnical University | Liu L.,Northwestern Polytechnical University
Sensors and Transducers | Year: 2013

An approach to analyze the effects of different factors on gear dynamic behavior is presented by means of vibration influence chart. Considering the high contact ratio and heavy load characteristics of herringbone planetary gear train, a translational-rotational coupled dynamic model for an encased differential herringbone planetary gear train is developed using lumped mass method. The principles and methods to draw the influence chart are given and the specific steps for HPGT are discussed in detail. The optimal matches between the mean value and fluctuation of mesh stiffness, rotating speed are obtained using the vibration influence charts. The good design regions for vibration are evidently presented in figures, which is significant to parameters design of herringbone planetary gear systems. © 2013 IFSA Publishing. All rights reserved.

Gu H.-R.,Chang'an University | Gu H.-R.,Jiangsu Huatong Kinetics Co. | Jiao S.-J.,Chang'an University | Xiao C.-Y.,Jiangsu Huatong Kinetics Co. | And 2 more authors.
Applied Mechanics and Materials | Year: 2010

To study the flywheel storage energy in enhancing the construction machinery engine speed stability, Dynamic model on engine and engine connecting another flywheel is established. With a group of experiment data, load changing effecting the engine speed is compared when the storage energy flywheel is assembled and not. The results indicate that high frequency engine speed fluctuating is less when the storage energy flywheel is assembled, the drive and economy performance is better, and added energy loss is only for friction. © (2010) Trans Tech Publications, Switzerland.

Gu H.-R.,Chang'an University | Gu H.-R.,Jiangsu Huatong Kinetics Co. | Jiao S.-J.,Chang'an University | Xiao C.-Y.,Jiangsu Huatong Kinetics Co. | And 2 more authors.
Zhongguo Gonglu Xuebao/China Journal of Highway and Transport | Year: 2012

In order to provide reference for milling parameters matching with asphalt milling machine, cutting load characteristics were studied on LXH1000 hydraulic asphalt milling machine. Using mathematic analysis method, motion trajectory of cutter was studied, and the model of cutting thickness and cumulative cutting thickness of rotor was built as rotor angle varying. Impact of cutting load was analyzed, and field cutting tests were conducted to validate the conclusions. The results show that cumulative cutting thickness of rotor has a periodic change with high frequency, and the period is determined by rotating speed of rotor and the number of cutters installed on it, the average is determined by rotating speed of rotor and speed of asphalt milling machine, but there is no apparent link between the periodic change and cutting load fluctuation.

Li Y.-Y.,Chang'an University | He Z.-X.,Chang'an University | He Z.-X.,Jiangsu Huatong Kinetics Co. | Song X.-D.,Chang'an University | Wang K.,Jiangsu Huatong Kinetics Co.
Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics | Year: 2015

For the vibration screen system of asphalt mixing plant, a dynamic model based on the Newton method is established. In this model, the direction inconsistency between mechanical vibration and springs support are considered as well as the influence of support bearings and sieve-plate stiffness on the vibration screen system. The variation of vibration displacement of the vibration screen centroid under the different exciter frequencies and the installation angles was investigated. The amplitude distribution of different locations of vibration screen was obtained, and the effect of different vibration direction angle on amplitude and stress was studied by using finite element method (FEM) for steady-state. The results show that the amplitude of vibration screen increases with the increasing frequency of exciter and the decreasing tilt angle of vibration screen. The main amplitude and stress increase with the vibration direction angle β when β varies from 0° to 90°. The amplitude near the feed inlet is greater than that near the feed outlet along the length direction of vibration screen. ©, 2015, Editorial Office of Chinese Journal of Computational Mechanics. All right reserved.

Wang H.,Chang'an University | Yao S.,Chang'an University | Yao S.,Jiangsu Huatong Kinetics Co. | Kong Y.,Chang'an University | And 4 more authors.
Xi'an Jianzhu Keji Daxue Xuebao/Journal of Xi'an University of Architecture and Technology | Year: 2015

The complex working condition of loaders and load rapid change of the load lead to poor performance of the machine and the energy is not fully utilized. Making ZL50 loader as object, research of its hydraulic mechanical composite transmission energy-saving system and performance parameters, is carried out so as to the purpose is to reduce the ZL50 loader energy consumption, making it more efficient, comfort and energy-saving in the work. The paper has designed hydraulic mechanical composite transmission, transmission analyzed and established mathematical models of critical components. The dynamic simulation on ZL50 loader hydraulic mechanical composite transmission energy-saving system through simulation software AMESim and MATLAB/Simulink. The results show that efficient, comfort and energy-saving of the loader has been greatly improved, the rationality and feasibility of the design plan of the ZL50 loader hydraulic mechanical composite transmission energy-saving system are proved, in providing a reference for similar products. ©, 2015, Science Press. All right reserved.

Dong Z.-H.,Chang'an University | Ni F.-Y.,Chang'an University | Liu S.-M.,Chang'an University | Liu X.,Jiangsu Huatong Kinetics Co Ltd
Chang'an Daxue Xuebao (Ziran Kexue Ban)/Journal of Chang'an University (Natural Science Edition) | Year: 2014

To determine the reasonable grade and grade length, a dynamic heavy truck model was set up, which could be suitable to the characteristics of steep and long longitudinal slope. The tire and suspension could bear forces not only in the vertical direction but also in the horizontal direction along slope. With consideration of the torque characteristics of the engine and the stall conversion relationship of the power transmission system, the speed variation during the heavy truck climbing process was studied. The influences of axle load, entrance speed, grade and grade length on the truck speed were analyzed. The results show that the change of the heavy truck drive torque is quite complex during the climbing process, but the speed is always in decline. If the grade length is long enough, there is always a steady speed. With the increase of grade and axle load, the decline of the speed will be faster, and the steady speed will be lower. The entrance speed has no influence on the steady speed, but with the increase of the entrance speed, the steady length will be longer. Based on the above analysis, the control indicators of grade and grade length are put forward, and then a function model on the relationship between grade and grade length is built up. The results can provide reference for route design of highway in mountain area.

Gu H.,Chang'an University | Xiao C.,Jiangsu Huatong Kinetics Co. | Liu Y.,Jiangsu Huatong Kinetics Co. | Wang F.,Jiangsu Huatong Kinetics Co.
2011 IEEE 3rd International Conference on Communication Software and Networks, ICCSN 2011 | Year: 2011

To make research work reproducible and comparable, enhance efficiency, decrease cost, AMESim (Advanced Modeling and Simulation Environment for Systems engineering) is used in studying cutting speed stability of hydraulic milling machines. One simulation model of hydraulic milling machine is established based on AMESim, and cutting rev characteristic of milling machine is studied when the hydraulic system overflow pressure is set different. The results indicate inertia of engine effects milling drum cutting speed stability significantly, and milling drum cutting rev will fluctuate when the maximum output torque is set on a low level, limited by the overflow pressure setting, as milling hydraulic system overflows frequently under the action of alternating load, and ideal overflow pressure setting should insure the relief valve not overflowing all the normal working status. © 2011 IEEE.

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