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..

A Research of Mobile Machinery Based on Closed Hydraulic System

2014 ◽  
Vol 697 ◽  
pp. 198-201
Author(s):  
Xi Yin Lou
Keyword(s):  
Failure Rate ◽  
Hydraulic System ◽  
High Efficiency ◽  
Working Environment ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Compact Structure ◽  
Speed Regulation ◽  
Mobile Machinery ◽  
Stable Transmission

The closed hydraulic transmission system is composed of a variable hydraulic pump, hydraulic motor, quantitative integrated valve and fuel tank and other components. The system has the advantages of compact structure, good sealing, stable transmission, high efficiency, low failure rate, it can realize the stepless speed regulation, convenient commutation, widely used in walking machinery working environment is bad, the speed of uniform.

Study on the Design of Composite Transmission System for Crawler Type Full-Feeding Combine Harvester

2014 ◽  
Vol 722 ◽  
pp. 80-83
Author(s):  
Xi Yin Lou
Keyword(s):  
High Efficiency ◽  
Fast Response ◽  
Continuous Variable ◽  
Transmission System ◽  
Mechanical Transmission ◽  
Variable Speed ◽  
Hydraulic Motor ◽  
Speed Regulation ◽  
Full Load Operation ◽  
Combine Harvester

Transmission system is an important part of combine harvester, and is the main indicator to measure the level of technology. This paper presents the design of a composite hydraulic mechanical transmission system for combine harvester. The system consists of engine, variable pump, quantitative hydraulic motor, planetary reducer, driving wheel, crawler etc. Author analyzes the continuous variable speed regulation characteristics of transmission; determines selection method of hydraulic components and mechanical parameters. Composite transmission system can make the engine is close to full load operation, improve combine harvester productivity and fuel economy. By optimizing the transmission system, combine harvester can reduce speed, increases the torque, realizes continuous variable speed. Practice has proved: this dynamic composite transmission system with fast response, high efficiency, and reliable, low failure rate. At the same time, combine harvester has the advantages of simple operation, forward, backward or turning without shifting, greatly reduce the labor intensity of the operator.

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 ultra-high molecular weight polyethylene in a hydraulic drive

2020 ◽  
pp. 77-78
Keyword(s):  
Molecular Weight ◽  
Low Temperature ◽  
High Molecular Weight ◽  
Hydraulic Drive ◽  
Control Valve ◽  
Hydraulic Control ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Hydraulic Oil ◽  
Ultra High Molecular Weight

The use of ultra-high molecular weight polyethylene (UHMW PE) for the manufacture of various parts, in particular cuffs for hydraulic drives, is proposed. The properties and advantages of UHMW PE in comparison with other polyethylene materials are considered. Keywords ultra-high molecular weight polyethylene, hydraulic pump, hydraulic motor, hydraulic control valve, hydraulic oil, low temperature. [email protected]

scholarly journals Improved Sliding Mode Control for Permanent Magnet Synchronous Motor Speed Regulation System

2018 ◽  
Vol 8 (12) ◽  
pp. 2491 ◽  
Author(s):  
Junbing Qian ◽  
Chuankun Ji ◽  
Nan Pan ◽  
Jing Wu
Keyword(s):  
Sliding Mode Control ◽  
Permanent Magnet ◽  
Sliding Mode ◽  
High Reliability ◽  
Permanent Magnet Synchronous Motor ◽  
Synchronous Motor ◽  
Regulation System ◽  
Mode Control ◽  
Speed Regulation ◽  
Speed Fluctuations

Due to advantages such as high speed, high accuracy, low maintenance and high reliability, permanent magnet synchronous motor (PMSM) servo systems have been employed in many fields. In some cases, for example, speed fluctuations caused by load mutation would restrict the control stability, thereby limiting the usefulness of PMSM in high-precision applications. The speed regulation problem of PMSM servo control systems is discussed in this paper. A sliding mode disturbance control is developed in the vector control system to improve tracking performance of the PMSM system in order to suppress the speed fluctuations. The integration of sliding mode control and the proportional plus integral (PI) control can improve the performance of the closed-loop system and attenuate disturbances to a great extent. The proposed method can effectively improve the robustness and response speed of the system. Simulation and experimental analyses are conducted to demonstrate the superior properties of the proposed control method.

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 Intelligent Speed Regulation Control of Switched Reluctance Motor of Electric Vehicle Based on Neural Network Parameter Identification

2021 ◽  
pp. 157-164
Author(s):  
Xiaoliang Zhang
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
High Efficiency ◽  
Good Control ◽  
Switched Reluctance Motor ◽  
Regulation System ◽  
Network Parameter ◽  
Switched Reluctance ◽  
Speed Regulation ◽  
Reluctance Motor

Based on the analysis of the related theories of switched reluctance motor, this paper designs and implements the intelligent speed regulation system of switched reluctance motor for electric vehicle. The speed regulation system has the characteristics of high efficiency and energy saving, wide speed regulation range and small starting current. The system also has the advantages of large starting torque, frequent start and stop, forward and reverse switching, high torque / inertia ratio and four quadrant operation. The system can provide a good solution for variable speed drive. The digital controller of the system is composed of TMS320F2812 DSP and EPM7128S CPLD, which can realize the starting, electric and braking functions of electric vehicles. Experiments show that the switched reluctance motor drive system for electric vehicle has good control performance and strong fault tolerance. The system can meet the requirements of various working conditions of electric vehicles and has broad development prospects.

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.).

Research of Track-Type Full Feeding Combine Harvester Walking Design Scheme Based on Hydraulic Close System

2014 ◽  
Vol 697 ◽  
pp. 187-189
Author(s):  
Xi Yin Lou
Keyword(s):  
Power Transmission ◽  
Engineering Application ◽  
Weight Ratio ◽  
Hydraulic Pump ◽  
Power Matching ◽  
Speed Regulation ◽  
Closed Type ◽  
Combine Harvester ◽  
Key Techniques ◽  
And Control

Hydraulic technology is one of the key techniques of modern transmission and control. Closed type hydraulic power transmission system is weight ratio, fast action, easy to realize the advantages of flexible stepless speed regulation, flexible power transmission. In this paper, the closed hydraulic system of double bidirectional variable hydraulic pump and the bidirectional quantitative motor, the drive system for crawler type machinery, advantages, in the walking system design process can reasonable calculation and power matching, reasonable selection of power components, the universal value of engineering application.

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