履带式水稻联合收割机 理论模型设计 唐忠 umd mobi chm 夸克云 免费 azw3 下载 pdf

这是一本关于履带式水稻联合收割机收获理论、结构模型、设计方法的著作，本著作的内容是作者及其团队近十年来的研究成果。本著作共分为九章，第1章主要阐述了收获期水稻的成熟度和力学特性，读者可以通过本章了解到成熟期水稻茎秆、稻叶、籽粒的基本属性。第2章至第5章主要阐述了履带式水稻联合收割机收获中的切割、输送、脱粒、分离、清选、籽粒输送等内容；在该部分读者可以详细了解到履带式水稻联合收割机的收获理论、结构模型、设计方法等。第6章至第8章主要阐述了履带式水稻联合收割机的人机交互平台设计，当履带式水稻联合收割机在进行收获时，整机的动态载荷和振动状态得到了详细的阐述。第9章主要阐述了水稻收获后田间废弃稻草的收获方法及其装备；本著作容纳了大量履带式水稻联合收割机研究成果，该内容对于带式水稻联合收割机的设计具有重要的意义。

Chapter 1Introduction to Rice Harvesting

11Introduction for Rice Harvesting

111Developing of rice harvesting

112Chinese combine harvester of rice

12Field Growth Status of Rice at Maturity

13Rice Grain Properties and Modeling

131Morphological structure of rice grain 

132Mechanical properties of rice grains

14Rice Stem Properties and Modeling

141Morphological structure of rice stem

142Mechanical properties of rice stems

143Breaking force distribution and breaking mode

15Rice Leaves Properties and Modeling

151Rice leaves and tensile test property

152Threepoint stretching of blades

153Tensile performance at different temperatures

154Moisture content law at different temperatures

155Tensile properties of multiple blades

16Control Method for Rice Plant Break Property

16 1Rice stem breaking force

162Rice leaves breaking force

163Changing of rice microstructure

Chapter 2Rice Stem Cutting and Conveying Equipment

21Introduction to Cutting and Conveying

211Structure of front header

212Structure of pentagon reel

213Structure of cutting bar

214Structure of combine auger

215Structure of assembly of front header

22Static Analysis of Front Header

221ANSYS simulation of front header

222Experiment mode of front header

23Stems Cutting Situation and Property in Field

231Rice stems cutting property

232Stems cutting situation in the field

24Dynamic Property during Cutting Process

241Vibration test method of front header

242Frame vibration of front header

243Cutting table rack vibration on land

Chapter 3Rice Threshing and Separation Method

31Threshing and Separate Model of Rice Grain

311Grain threshing and separation model

312Threshing and separation test of model

32Rice Stalk Movement during Rice Threshing

321Numerical model of threshing unit

322Straw movement speed and trajectory

323Eccentric load in threshing process

33Design and Optimization of Threshing Cylinder

331Negative pressure spiral feeding device

332Design of threshing cylinder cover

333Length optimization of threshing cylinder

334Design of transverse and longitudinal combined

335Design of transverse threshing multicylinders

34Threshing Results with Different Mature States

341Different mature states of rice

342Threshing and separation performance

35Parameters Prediction and Control of Rice Threshing

351Threshing torque and force of drum

352Methods of optimal parameter prediction

353Threshing cylinder parameter control

Chapter 4Damage of Rice in Threshing Process

41Threshing Force of Cylinder Threshing Bar

411Threshing force test method of threshing bar

412Threshing force of cylinder acting on stem

42Damage Property of Rice with Threshing Force

421Possibility of rice stalk damage

422Breaking property with combined force on stem

423Breaking property of rice leaves undergoing

43Microstructure of Rice Stalk after Threshing

44Grain Damage in Threshing Process

441Grain damage model undergoing threshing

442Mechanical characteristic parameters of rice grains

443Damage model of rice internal damage

444Internal damage of grain by threshing bars

Chapter 5Cleaning Device and Conveying Process

51Mixture Property of Rice after Threshing

511Floating speed test method of cleaning materials

512Floating speed of cleaning materials

52Influence of Air Flow in Cleaning Device

521Airandscreen cleaning device

522Air velocity test in the cleaning room

523Floating distribution state of mixture

53Theories of Rice Grain Cleaning Process

531Vibration screening motion theory

532Grains group separating theory

533Cleaning capability of queuing model

54Airandscreen Cleaning under Multiparameter

541CFD simulation of airflow field

542Fluidsolid coupling in cleaning room

543Distribution and loss rate of cleaned grain

Chapter 6HumanMachine Interface Chassis Platform

61HumanMachine Driving Operation Platform

611Rice combine harvester cab

612Cab maneuvering space layout

62Crawler Chassis Structure of Combine Harvester

621Overall structure of crawler chassis

622Main variable of crawler chassis

63Development of Crawler Steering Gearbox in Field

631Unilateral brake steering gearbox

632Positive and negative steering gearbox

633Tracks and trajectory of steering gearbox

64Design of Chassis Frame and Threshing Frame

641Structural design of chassis frame

642Structural design of threshing frame

65Bearing Capacity Analysis for Crawler Chassis

651Chassis frame structure load and stress state

652Analysis of carrying capacity of chassis frame

653Test of carrying capacity of chassis frame

Chapter 7Dynamic Load during Rice harvesting

71Integrated Status of Combine Harvester

711Component of combine harvester

712Combine harvester integration

72Dynamic Load of Rice Harvesting

721Transmission of combine harvester

722Dynamic load test method in field

723Affordability load of rice harvesting

73Dynamic Load of Crawler Drive Shaft

731Structure and stress of drive shaft

732Dynamic load test method of drive shaft

733Dynamic load undergoing different condition

74Reliability and Fatigue of Chassis Gearbox

741Structure principles of tracked gearbox

742Gear strength of tracked gearbox

743Chassis gearbox fatigue test

Chapter 8Dynamic Response Undergoing Harvesting

81Component Vibration of Combine Harvester

811Frame vibration of front header

812Unbalanced vibration of threshing cylinder

813Vibration response of harvester chassis frame

82Vibration Modal of Whole Combine Harvester

821Frame vibration model under multisource excitation

822Vibration response with field excitation

823Unbalance vibration modeling of grading chain drive

83Mutual Interference and Coupling Response

831Coframe multicylinder test bench in rice threshing

832Modal response under multisource excitation

84Dynamic Simulation Model of Combine Harvester

841Multisource excitation forces of rice combine harvester

842Comparison of simulation results and test results

Chapter 9Rice Straw Harvester in Field

91Straw Treatment after Rice Harvesting

92Method for Straw Picking and Baling Harvester

921Conceptual model of picking and baling machine

922Design method of picking and baling harvester

923Structural model of picking and baling machine

93Vibration Property during Picking and Baling

931Inertial vibration of crank slider

932Crank linkage structure dynamics

933Natural frequency and modal of piston

934Vibration property during machine running

94Straw Picking and Baling after Harvesting in Field

941Bundling capacity of machine

942Baling performance in field

95Harvesting and Bundling Integrated Harvester

951Harvesting and bundling combine harvester

952Straw bundling of integrated combine harvester

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