Papers by Keyword: Gear Box

Abstract: The objective of this research is to implement the lean techniques over CNC machine cells with standardization and line balancing for reduction of overall lead time. The methodology used for this research is a combination of traditional lean system with ZF production system. The analysis was carried out over CNC machine cells with the objective of standardization and line balancing of the cells. Primarily the standardization of the CNC manufacturing cells were done, so that the process is streamlined and optimized without non-value added activity. Also this study deals with productivity improvement in manufacturing line through continuous improvement using kaizen approach. Observation of cycle time was carried out by video based work study technique. The operational videos such as cycle time of various processes were captured and improvement possibilities were identified. Then line balancing was done to overcome bottlenecks between operations to meet customer TAKT time and to increase overall productivity. The overall output has been improved from 22 to 30 per week for all models of gear box. Lean tools such as standard work procedure and Kaizen were employed and found that the overall cycle time was reduced by about 609 minutes with an improvement of 17.54%.

Abstract: Aiming at the problems of pitting, shafts broken and so on in the process of the use of boom and crowning mechanism gear box of a large mining excavator, research found that the key problems of broken shafts and the large bearings clearance are caused by excessive shafts and gear teeth deformation, which result in serious corrosion occurred by partial load and serious bearing damage.

Abstract: In-wheel drive electric vehicles have the incomparable advantage over conventional electric vehicles, and the efficiency of the gear box is an important factor which affects the transmission efficiency of the electric vehicles. This paper focuses on a kind of gear boxes of the in-wheel drive system, in the premise of ensure the structure is stable and reliable, optimizes the related parameters with the goal of maximizing the efficiency of the gear box by using MATLAB optimizing toolbox. Comparing the optimization results with the efficiency before optimized,the influence of related parameters is studied. The results have practical significance to the selection of gear box parameters.

Abstract: This paper demonstrates the operational stress analysis, performed on the strip mine conveyer drive after the damage has occurred at the second installed gear box. According the long term test it has been found; that the damage was probably caused due to the different breaking moment, introduced on both drives. The examples of measured time histories as well as the evaluation and comparison of measured data are presented, too.

Abstract: This paper presents the design and manufacturing aspects of these tools. Constructive and geometric peculiarities are exposed for the gear hobbing cutter with large modules. The design of the gear hobbing cutter with modified profile in the parametrized variant permits a rapid adaptation to any conditions. Depending on the particular constructive geometric of the gear hobbing cutter profile it was created the virtual prototype (solid model). This is analyzed and, in the final stage, it is manufactured [1,2,3,4,] . Manufacturing techniques of the tool include the obtaining of the profiled knifes for clearance (achieved by increased 50:1 templates on the machine for profiled tools) and the special control templates (obtained on templates milling machine F. Studer) [. This paper presents the method of obtaining of the gear hobbing cutter profile by adjusting the corresponding shape of the abrasive disc to optimize the grinding conditions [. It is recomended the method which use the changing of the rack reference imposed by technical and functional conditions [7,8,.

Abstract: This paper introduces the basic principles and calculation methods for the correlation dimension and Kolmogorov entropy. By calculating the correlation dimension and Kolmogorov entropy when the gear is under different working conditions, we can analyze the inherent relationship between the two in depicting of the running condition of the gearbox. The result shows that,the correlation dimension and Kolmogorov entropy have a good consistency in the description of working status of gearbox. This conclusion not only provides a good basis for the gearbox running condition judgment and fault diagnosing, but can also provide the experimental basis for the chaotic characteristic parameters selection in state monitoring and fault diagnosing.

Abstract: With the development of economy, the energy demand is becoming bigger and bigger, the development of wind energy is one of the main ways to solve energy crisis. In terms of energy utilization, high power wind power connected to the grid is currently one of the most effective ways of wind energy utilization. The wind power generation system connected to the grid plays the role of the changing wind energy into mechanical energy by wind turbines, and then converts mechanical energy into electrical energy by a generator. Because CSCF wind turbine works with the gearbox, which is low efficiency, noise and mechanical loss. And it has not been able to meet the needs of the times. Therefore, the direct drive wind power technology capable of tracking the maximal power point of wind power at rated wind speed has become one of the hot spots in the present research. This paper introduces the converter of the direct drive wind power system and analyzes the working principle of the direct driven permanent magnet synchronous wind power system.

Abstract: As a universal component connection and power transmission gear box, is widely used in the modern industrial equipment, but also an easy failure parts, has a great influence on the running state of the working performance of the whole machine. This paper first analyzes the gear box fault form and characteristics, the gear box fault diagnosis method based on vibration signal analysis, and analysis of the vibration signal processing method for gear vibration signal analysis in time domain, including parameters, resonance demodulation method and cepstrum analysis method. Then using Visual C + + language and data acquisition card for real-time acquisition of gearbox vibration data software, including parameter setting, data acquisition module, signal real-time display module and data storage module. The data acquisition program is developed, the actual acquisition of gearbox vibration data of gear fault and bearing fault, and analyzed.

Abstract: This paper used solidworks software to build 3-D model of a certain Heavy Vehicle Part, then analyzed the model strain state under typical operation condition by ANSYS,

Abstract: It is studied that Modern Design Methods based on Pro/Engineer software. The building process of rapid design platform of gear box is given systematically by applying top-down design techniques of data sharing mode, parametric modeling tools of standard parts, interchangeable parts library and kinematic simulation analysis methods. The solid modeling and simulation analysis of gear box is completed. The rapid design platform can provide technical support for manufacturing companies to adapt to quick changes of market and to research and develop series products efficiently.