Application of Planetary Gear Transmission Technology in Tracked Combine Harvester

2014 ◽  
Vol 904 ◽  
pp. 417-419
Author(s):  
Xi Yin Lou
Keyword(s):  
Small Volume ◽  
High Efficiency ◽  
Mechanical Design ◽  
High Reliability ◽  
Volume Ratio ◽  
Planetary Gear ◽  
High Technology ◽  
Gear Transmission ◽  
Compact Structure ◽  
Combine Harvester

The tracked combine agricultural machinery is a most complex in structure, high technology content, the manufacture technology of very strict requirements of product. Our crawlers combine 1/3 of the fault from the walking gear system in operation. This paper adopts the planetary wheel transmission, because it has the advantages of compact structure, small volume, large transmission ratio, torque / volume ratio, high efficiency, and high reliability, meet the structure and characteristics of the combine harvester. This technology can save the transmission assembly, avoid the fault of gearbox assembly; improve the combine harvester of paddy field through. Keywords: Mechanical design;Combine Harvester;Planetary Gear;Transmission Technology

Application of Tracked Combine Harvester Step-Less Speed Regulated System

2014 ◽  
Vol 904 ◽  
pp. 365-367
Author(s):  
Xi Yin Lou
Keyword(s):  
High Efficiency ◽  
High Reliability ◽  
Control Valve ◽  
Regulation System ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Compact Structure ◽  
Speed Regulation ◽  
Walking Machines ◽  
Combine Harvester

In this paper, Step-less speed regulation system using double reversible variable pump and double quantitative motor, since the middle of no other control valve, the hydraulic pump and hydraulic motor with high efficiency. To meet the tracked combine and walking machines because of their own characteristics has the advantages of compact structure, light weight, high efficiency, high reliability, and other requirements of the system..

Design and Test of Differential Planetary Gear System for Open Rotor Power Gearbox

2013 ◽  
Author(s):  
Hideyuki Imai ◽  
Tatsuhiko Goi ◽  
Kenichi Kijima ◽  
Tooru Nishida ◽  
Hidenori Arisawa ◽  
...  
Keyword(s):  
Performance Test ◽  
High Efficiency ◽  
High Reliability ◽  
Gear Tooth ◽  
Planetary Gear ◽  
Design Concept ◽  
Gear System ◽  
Open Rotor ◽  
Planetary Gear System ◽  
Validation Tests

The open rotor engine is a next generation aero-engine that satisfies the demand for high fuel efficiency and low CO2 emission. A differential planetary gear system is incorporated in the open rotor engine to connect the turbine output shaft and fan rotors in order to counter-rotate the fan rotors as well as allow the turbine and fan rotors to operate at more efficient speeds. The open rotor gear system is required to have not only 20,000 hp high power transmission, but also an increasingly high efficiency, high reliability and light weight. To achieve these requirements, the following design works were conducted; (1) a low misalignment and lightweight carrier, (2) a flexible structure to absorb the displacement caused by the flight load, (3) an optimum gear tooth modification and (4) reduction of oil churning and windage losses. Also, extensive analyses and simulations such as lube oil flow CFD, FEA and tooth contact analysis were conducted. A full scale prototype gear system was manufactured and validation tests were conducted using a newly constructed test rig to validate the design concept. A slow roll test, rated performance test and efficiency test were conducted. And the design concept was found to be valid. This paper describes details of the prototype design and the results of the validation tests.

scholarly journals Dynamic analysis of planetary gear train system with double moduli and pressure angles

2018 ◽  
Vol 211 ◽  
pp. 17003
Author(s):  
Heyun Bao ◽  
Guanghu Jin ◽  
Fengxia Lu ◽  
Rupeng Zhu ◽  
Xiaozhu Zou
Keyword(s):  
Differential Equation ◽  
Integration Method ◽  
High Reliability ◽  
Planetary Gear ◽  
Gear Transmission ◽  
Gear Train ◽  
Numerical Integration Method ◽  
Planetary Gear Train ◽  
Low Weight ◽  
Train System

The planetary gear transmission with double moduli and pressure angles gearing is proposed for meeting the low weight high reliability requires. A dynamic differential equation of the NGW planetary gear train system with double and pressure angles is established. The 4-Order Runge-Kutta numerical integration method is used to solve the equations from which the result of the dynamic response is got. The dynamic load coefficients are formulated and are compared with those of the normal gear train．The double modulus planetary gear transmission is designed and manufactured. The experiment of operating and vibration are carried out and provides.

An On-Line Multiparametric Water Quality Monitoring System Based on Visible Spectrophotometry

2011 ◽  
Vol 189-193 ◽  
pp. 2801-2804 ◽  
Author(s):  
Hai Yang Liao ◽  
Peng Tian ◽  
Yu Du ◽  
Zhi Yu Wen
Keyword(s):  
Water Quality ◽  
Monitoring System ◽  
High Efficiency ◽  
High Reliability ◽  
Pure Water ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Compact Structure ◽  
Visible Spectrophotometry ◽  
On Line

Water quality monitoring plays an important role in contamination control and environment protection. This paper describes an on-line multiparametric water quality monitoring system based on visible spectrophotometry, which combines embedded technology with GPRS telecommunication technology. This system can realize online wireless monitoring to concentrations of chromium (Cr), plumbum (Pb), A surfactant (AS), chemical oxygen demand (COD), ammonia nitrogen (AN), total phosphorus (TP) and total phenol (TPh) in real time. The mechanical structure, hardware circuit and software design of the system are completed. The absorption spectrums of pure water and MB-SDS complex have been measured. Preliminary experiments using a model machine show that each mechanism of the system runs well. Moreover, the monitor possesses many advantages, such as high degree of automation, high reliability, high efficiency, compact structure, small size, and so on.

Study on Walking System Technology of Crawler Combine Harvester

2014 ◽  
Vol 1037 ◽  
pp. 107-110 ◽  
Author(s):  
Xi Yin Lou
Keyword(s):  
Production Efficiency ◽  
High Efficiency ◽  
Hydraulic Drive ◽  
Planetary Gear ◽  
Drive System ◽  
Mechanical Transmission ◽  
Speed Increase ◽  
Speed Regulation ◽  
Combine Harvester ◽  
And Control

Crawler combine harvester walking system is various transmission technology are organic and reasonable matching, foster strengths and circumvent weaknesses, complementary drive system so as to achieve the best overall. Stepless speed walking is particularly suitable for complex condition changes, the demand of drive system for a more comprehensive, more comprehensive, objective stepless speed walking in transmission system innovation or seek better performance, and as a mechanical transmission device of the planetary gear has the advantages of small volume transfer large torque, high efficiency. The combination of both realizes stepless transmission, and has the advantages of low speed and high torque. Hydraulic drive system is mainly to achieve stepless speed regulation, commutation, planetary gear drive mainly reduce speed, increase the torque to. Composite transmission mode that can greatly improve the transmission ability, expand the scope of speed adjustment. In fact, combine the stepless variable speed running and control technology can greatly improve the performance of the product, especially the effect on production efficiency, durability, controllability, environment adaptability, green characteristics were significantly.

scholarly journals Pipeline Pumps for Energy Efficiency and High Reliability

1998 ◽  
Author(s):  
H. Samarasekera ◽  
R. Lueneburg ◽  
T. Morton
Keyword(s):  
High Efficiency ◽  
Mechanical Design ◽  
High Reliability ◽  
Cost Savings ◽  
Pump Efficiency ◽  
Potential Cost ◽  
Equipment Reliability ◽  
Pipeline Systems ◽  
Key Variables ◽  
Capacity Flexibility

Key variables in the design of pipeline systems are pump efficiency, equipment reliability, and throughput flexibility since they significantly influence the pipeline operating costs. Pumps commonly used in pipelines operate at high efficiency only at the Best Efficiency Point (BEP) capacity. Outside this capacity, efficiency decreases and the wasted energy is converted into harmful vibrations, noise and heat, contributing to premature pump failures. Conventional pumps do not provide capacity flexibility to a pipeline. A horizontal split case pump with replaceable diffusers and capable of accommodating a series of impellers has been developed. An impeller/diffuser combination with a BEP capacity matching the pumping capacity is selected to maximise efficiency. Since it operates close to BEP capacity, minimal pump vibrations and noise improve pump reliability. Hydraulic and mechanical design features of the pump, some concepts for the future and a discussion of the potential cost savings when used in pipeline systems are presented.

SYSTEM FOR SETTING PARAMETERS OF THE TECHNOLOGICAL PROCESS OF COMBINE HARVESTERS

2020 ◽  
Author(s):  
E.Y. Adamcikova ◽  
◽  
A.Y. Tsarev ◽  
A.R. Kostrov ◽  
T.I. Vovk ◽  
...  
Keyword(s):  
Moisture Content ◽  
Technological Process ◽  
High Efficiency ◽  
High Reliability ◽  
Electronic System ◽  
Effective Control ◽  
Combine Harvester ◽  
Combine Harvesters ◽  
Control And Management ◽  
Setting Parameters

The introduction of new precision farming technologies is carried out in order to ensure high reliability of combines, ease of operation and high efficiency. Each modern combine harvester must be equipped with an electronic system for effective control and management of the machine-an on-Board computer (BC), which would allow maintaining the uniformity of the grain mass flow and stabilizing the allocation of grain from the straw pile, with the agrophone changing in the field (yield, flatness, clogging, moisture content of grain and straw, etc.).

The CW251 B10 Gas Turbine Engine

1986 ◽  
Author(s):  
P. W. Kuly
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
High Efficiency ◽  
Mechanical Design ◽  
High Reliability ◽  
Gas Turbine Engine ◽  
Turbine Engine ◽  
Performance Capability ◽  
Unit Performance

The CW251B10 gas turbine engine, rated at 41.2 MW ISO, is designed for utility and industrial power generation. Design objectives were; high efficiency, high reliability, and ease of site maintenance. This paper reviews the unit performance capability, describes in detail the mechanical design of the engine and reviews its maintenance features.

scholarly journals Marine Hydrokinetic Turbine Power-Take-Off Design for Optimal Performance and Low Impact on Cost-of-Energy

2013 ◽  
Author(s):  
Mike J. Beam ◽  
Brian L. Kline ◽  
Brian E. Elbing ◽  
William Straka ◽  
Arnold A. Fontaine ◽  
...  
Keyword(s):  
High Efficiency ◽  
Mechanical Design ◽  
High Reliability ◽  
Low Cost ◽  
Hydraulic Drive ◽  
Electrical Energy ◽  
Good Efficiency ◽  
Cost Of Energy ◽  
Marine Hydrokinetic ◽  
Maintenance Requirements

Marine hydrokinetic devices are becoming a popular method for generating marine renewable energy worldwide. These devices generate electricity by converting the kinetic energy of moving water, wave motion or currents, into electrical energy through the use of a Power-Take-Off (PTO) system. Most PTO systems incorporate a mechanical or hydraulic drive train, power generator and electric control/conditioning system to deliver the generated electric power to the grid at the required state. Like wind turbine applications, the PTO system must be designed for high reliability, good efficiency, long service life with reasonable maintenance requirements, low cost and an appropriate mechanical design for anticipated applied steady and unsteady loads. The ultimate goal of a PTO design is high efficiency, low maintenance and cost with a low impact on the device Cost-of-Energy (CoE).

Part Design and Analysis of Cycloid Installation Systems

2014 ◽  
Vol 539 ◽  
pp. 51-54 ◽  
Author(s):  
Chang Ji Shan ◽  
Yi Duo Bian ◽  
Lin Li
Keyword(s):  
Small Volume ◽  
High Efficiency ◽  
Load Capacity ◽  
Complex Structure ◽  
Three Dimensional ◽  
Working Environment ◽  
Light Weight ◽  
High Demand ◽  
Compact Structure ◽  
And Performance

Cycloidal gear requires rigidly a certain working environment, so its installation and part designing also calls for the greatest care. This paper intends to analyse and design the structure of system components and to conduct a feasibility study based on actual requirements. Three-dimensional drawing software is applied to aid to minimize any error in part designing and upgrade the designing efficiency. Cycloidal pin wheel is featured by compact structure, small volume, light weight, high efficiency, smooth operation, good load capacity and performance against impact and vibration. However, at the same time, owing to its complex structure, difficult manufacture, high demand of precision for processing and assembly, it is very important to design the cycloidal gear system

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