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.

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..

Calculation of a closed hydraulic volumetric system

2021 ◽  
pp. 27-30
Author(s):  
Keyword(s):  
Power Plant ◽  
Wind Power ◽  
Hydraulic System ◽  
Working Fluid ◽  
Wind Power Plant ◽  
Hydraulic Systems ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Oil Pump ◽  
Selection Of

An algorithm is proposed for calculating a closed volumetric hydraulic pump-hydraulic motor system using the example of the hydraulic system of a wind power plant, based on the calculation of the hydraulic systems of mobile machines. The main characteristics of the system components, the selection of initial data for the calculation, working fluid and diameters of hydraulic lines are analyzed. Keywords: hydraulic system, energy, fluid, oil, pump, motor, renewable energy source, wind power plant, machine. [email protected]

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.

scholarly journals PERHITUNGAN SISTEM HIDROLIK UNTUK PENGGERAK PISAU PADA MESIN PENGHAPUS MARKA JALAN

2020 ◽  
Vol 5 (2) ◽  
pp. 122
Author(s):  
Nanang Ali Sutisna ◽  
Muhammad Munajad
Keyword(s):  
Hydraulic System ◽  
Hydraulic Motor ◽  
Hydraulic Pump ◽  
Hydraulic Power ◽  
The Road ◽  
Overload Protection ◽  
Long Time ◽  
Road Marking ◽  
Grinding System ◽  
Test Result

<p>One of very important and vital tool in road marking is road mark erasing machines. In general, the machine used to repair road markings is a road marking erasing machine that is pushed manually. However, this machine has a disadvantage that requires a long time in the process of erasing the road marking, so making it less efficient. Therefore, the truck road mark erasing machine is one of the options to replace the erasing machine that is pushed manually. The machine uses a grinding system with a vertical blade eraser position and hydraulic power to drive the blades as it is able to withstand shock loads and thrust upwards due to the removal process, having overload protection, and the size of components are not large. The study started with doing observation to the existing manual erasing machine, then determining the required blades and calculating as well as selecting the required components of the hydraulic system.  Based on the calculation, the blade specification was obtained and selected, i.e <em>surface milling cutter</em> of type WFX12200R from Sumitomo Electric Hardmetal Corporation having rotation speed 750 rpm, hydraulic motor from Danfoss of type OMR-80 having torque 136 Nm dan displacement 80.3 cc/rev., and using hydraulic pump from Parker of type 0210 having displacement 21 cc/rev. From the test result in the field, this machine is three times faster than the manually pushed machine, less number of the blade used, and the engine as a resource on the machine is more durable. <strong></strong></p>

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

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]

Meshing and Bearing Analysis of Nutation Drive with Face Gear

2020 ◽  
Vol 13 (4) ◽  
pp. 352-365
Author(s):  
Guangxin Wang ◽  
Lili Zhu ◽  
Peng Wang ◽  
Jia Deng
Keyword(s):  
Contact Stress ◽  
High Efficiency ◽  
Transmission Ratio ◽  
Contact Strength ◽  
Hertz Contact ◽  
Face Gear ◽  
Compact Structure ◽  
Gear Teeth ◽  
Gear Drive ◽  
Number Of Teeth

Background: Nutation drive is being extensively investigated due to its ability to achieve a high reduction ratio with a compact structure and the potential for low vibration, high efficiency and design flexibility. However, many problems including the difficulty to process the inner bevel gear, less number of teeth in engagement and not being suitable for high-power transmission have restricted its development. Objective: The purpose of this paper is to analyze the contact strength of a patent about a new nutation drive developed based on meshing between two face gears, which has the advantages of both face gear and nutation drive, including large transmission ratio, large coincidence, small size, compact structure and strong bearing capacity. Methods: Based on the meshing principle and basic structure of the nutation face gear drive, the contact strength of nutation face gear transmission is analyzed by the Hertz contact analysis method and FEM method. Results: The maximum stress values of nutation face gear teeth are compared by two methods, which verify the accuracy of Hertz contact analytical method in calculating the contact strength of nutation face gear teeth. Furthermore, nine groups of three-dimensional models for the nutation face gear drive with a transmission ratio of 52 and different cutter parameters are established. Conclusion: The study analyzes the contact stress of fixed and rotary face gears in meshing with planetary face gears, and obtains the distribution law of contact stress and the influence of the number of teeth and parameters of the cutter on the load-carrying capacity.

The Study of Temperature Control Hydraulic Sensor

2012 ◽  
Vol 468-471 ◽  
pp. 1266-1269
Author(s):  
Yan Jun Zhang ◽  
Zi Ming Kou ◽  
Gui Jun Gao ◽  
Jun Zhang
Keyword(s):  
Temperature Control ◽  
Hydraulic System ◽  
Control Valve ◽  
Elastic Force ◽  
Working Environment ◽  
Hydraulic Circuit ◽  
New Type ◽  
Spool Valve ◽  
Special Working

Abstract. To improve the automation degree in special working environment which contains explosive gas. We develop a new type of temperature control hydraulic sensor basically on theory and lots of experiments. As the temperature reaches about 85°C，the motion part of the inductor will stretch to a certain length, and then it will push the adjusting rod. Simultaneously，the adjusting rod will overcome the elastic force of the spring and compel the spool valve to deform, and finally the control valve port will be open, it allows the control oil of the hydraulic system to pass. At last it reaches our destination that we can make the control of hydraulic circuit be realized.

The Research on Rake-Car’s Driving System of Ore Reclaimer

2013 ◽  
Vol 300-301 ◽  
pp. 10-13
Author(s):  
Yuan Hui Li ◽  
Kui Sheng Chen ◽  
Jiang Hong Deng ◽  
Xin Yuan Chen
Keyword(s):  
Computer Simulation ◽  
System Design ◽  
Failure Rate ◽  
Hydraulic System ◽  
Driving Mechanism ◽  
Connecting Rod ◽  
Driving System ◽  
Final Design ◽  
Hydraulic System Design ◽  
Working Situation

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.

The Research of New Kind of Automatic Hydraulic Bar Binding Machine

2011 ◽  
Vol 65 ◽  
pp. 336-340
Author(s):  
Cheng Qun Li ◽  
Chun Bin Yang ◽  
Jian Gong Li
Keyword(s):  
Control System ◽  
Hydraulic System ◽  
Compact Structure ◽  
New Model

On the basis of the research on the domestic and foreign binding machine, this article describes a new model of binding machine. Its compact structure is easy to operate and maintain. solidworks software is applied for modeling. Based on the plc-300 cpu module control system, not only ensures the speed and reliability bunch, but also gives good man-machine interactions. Hydraulic system saves energy effectively. Hydraulic components are distributed in the surface of its structure and easy to check repair.

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