GB/T 24675.6-2021Conservation tillage equipment—Part 6:Smashed straw machine (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1. Structure and Drafting Rules of Standardization Documents" drafted.

This document is part 6 of GB/T 24675 "Conservation tillage machinery". GB/T 24675 has published the following parts.

--- Part 1. Shallow loosening machine;

--- Part 2. Subsoilers;

--- Part 3. Spring tines;

--- Part 4. Disc harrows;

--- Part 5. Stubble crushing and returning machine;

--- Part 6. Straw crushing and returning machines.

This document replaces GB/T 24675.6-2009 "Conservation tillage machinery straw crushing and returning machine". and GB/T 24675.6-2009 In contrast, except for structural adjustments and editorial changes, the main technical changes are as follows:

a) The model representation method has been changed (see Chapter 4, Chapter 3 of the:2009 edition);

b) Modified the straw throwing uniformity index (see Table 1, 4.1 of the:2009 edition);

c) Changed the blade reliability requirements (see Table 2, 4.2 of the:2009 edition);

d) delete the general technical requirements (see 5.1 of the:2009 edition);

e) Deleted the material requirements for the gearbox body (see 5.2.1 of the:2009 edition);

f) Deleted gear material and heat treatment requirements (see 5.2.2 of the:2009 edition);

g) Delete the material and balance requirements of pulleys (see 5.2.3 of the:2009 edition);

h) Added the requirements for outsourcing parts (see 6.1.1);

i) The requirements for the folding frame of the wide straw crushing and returning machine are added (see 6.1.7);

j) Added new material and new technology of crushing blade (see 6.1.5);

k) Changed the safety technical requirements (see Chapter 7);

l) The safety requirements for the folding parts of the wide straw crushing and returning machine are added (see 7.6);

m) Changed the method for determining work performance (see 8.3.1~8.3.5, 7.2.1~7.2.6 of the:2009 edition);

n) Increased reliability assessment time (see 8.3.6, 7.2.6 of the:2009 edition);

o) The method for determining the adhesion of paint film is added (see 8.4.7);

p) Added the material inspection requirements for key parts and components (see 8.5.3).

Introduction

The core content of conservation tillage is to implement no-tillage or less tillage, reduce the intensity and frequency of tillage on the soil as much as possible, and use the residues of crop residues.

Stubble mulch protects the surface, and at the same time supports the corresponding agronomic cultivation techniques to protect the output capacity of the natural function of the soil. for reforming traditional agricultural agricultural production methods, improve drought resistance, increase farmers' income, reduce straw burning, improve ecological environment, promote sustainable agricultural development, and protect land resources It has important strategic significance and far-reaching historical significance. It has been widely promoted in my country, and the realization of conservation tillage is inseparable from the The technical support of agronomic agricultural equipment requires the cooperation of agricultural equipment with different operating conditions and performance. Therefore, according to different types of operations Formation of the conservation tillage standard system.

GB/T 24675 consists of the following parts.

--- Part 1. Shallow loosening machine;

--- Part 2. Subsoilers;

--- Part 3. Spring tines;

--- Part 4. Disc harrows;

--- Part 5. Stubble crushing and returning machine;

--- Part 6. Straw crushing and returning machines.

This document is part 6 of GB/T 24675, which is aimed at the special situation that a large amount of straw is left on the land after conservation tillage and affects no-tillage sowing.

In this paper, the technical requirements and test evaluation methods of straw crushing and returning machines for conservation tillage are completely given, which is helpful for the manufacture and application of straw crushing and returning machines. Product upgrades provide a standard basis. Conservation tillage machinery Part 6. Straw crushing and returning machine

1 Scope

This document specifies the model preparation, evaluation indicators, Technical requirements, safety requirements, test methods, inspection rules and signs, packaging, transportation and storage.

This document is applicable to straw crushing and returning machines mainly for crushing corn, wheat, rice, sorghum, cotton and other crop straws.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 699 High Quality Carbon Structural Steel

GB/T 2828.1 Counting Sampling Inspection Procedure Part 1. Lot-by-Lot Inspection Sampling Plan Retrieved by Acceptance Quality Limit (AQL)

GB/T 3077-2015 Alloy Structural Steel

GB/T 3098.1-2010 Mechanical properties of fasteners Bolts, screws and studs

GB/T 3098.2-2015 Fasteners Mechanical Properties Nuts

GB/T 5667 Agricultural Machinery Production Test Method

GB/T 9239.1-2006 Mechanical vibration constant state (rigid) rotor balance quality requirements - Part 1. Specifications and balance tolerance test

GB/T 9480 Rules for Compiling Instructions for Use of Forest Tractors and Machinery, Lawn and Garden Power Machinery

GB 10395.1 Agricultural and Forestry Machinery Safety Part 1. General

GB 10395.5-2013 Agricultural and Forestry Machinery Safety Part 5. Driven Farming Machinery

GB 10396 Agricultural and Forestry Tractors and Machinery, Lawn and Garden Power Machinery Safety Signs and Hazard Graphics General

GB/T 13306 Signs

GB/T 17126.1 Agricultural tractors and mechanical power take-off universal joint drive shafts and power input connecting devices - Part 1. General manufacturing and safety requirements

JB/T 5673 General technical conditions for painting of agricultural and forestry tractors and implements

JB/T 8574 Agricultural Machinery Product Model Compilation Rules

JB/T 9791 Agricultural machinery universal joint drive shaft safety shield

JB/T 9832.2 Determination method of paint film adhesion performance of agricultural and forestry tractors and implements Press cutting method

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Model preparation

The preparation of the product model of the straw crushing and returning machine shall comply with the provisions of JB/T 8574. The product model representation method and marking are as follows: END. Draft Version (GB/T 24675.6-2021)