NB/T 10523.1-2021Mechanical properties test method of shearer loaders - Part 1: Laboratory experiments (English PDF)

Foreword

NB/T 10523 "Drum Shearer Mechanical Performance Test Method" is divided into two parts.

---Part 1: Laboratory test;

---Part 2: Industrial test.

This part is part 1 of NB/T 10523.

This section was drafted in accordance with the rules given in GB/T 1.1-2009.

Introduction

With the development of the mining industry, coal mining machines have been widely used in coal production. Mastering the operating status of coal mining machines is important for ensuring high coal production.

High efficiency plays an important role. The current measurement technology of shearer electrical and hydraulic aspects is relatively mature, but the shearer mechanical measurement technology is lacking.

Test technology. The formulation of this standard aims to solve the problems of backward R&D and test methods of coal shearers and the disconnection between basic research and engineering technology development.

Break the technical bottleneck of "theory is not supported, the design is based on experience, the verification is based on the site, and the development of each stand-alone machine is not balanced". The development direction of humanization and intelligence.

Through the statics, kinematics, dynamics analysis and real-time measurement of the operating state of the drum shearer, the mechanical performance measurement of the drum shearer is formed.

Test principles, test conditions, instruments and equipment, test methods, data analysis and processing, and guide the development, use, inspection and testing of coal shearers significance.

This series of standards is applicable to various types of drum shearers, forming a scientific, standardized, and applicable testing method for the mechanical performance of shearers.

Standards are conducive to the high-yield, high-efficiency, safe and reliable mining of my country's coal mines, as well as prolonging the service life of shearers and reducing maintenance costs.

Testing method of mechanical performance of drum shearer Part 1: Laboratory test Caution-The personnel using this standard should have practical experience in formal laboratory work. This standard does not point out all possible safety issues question. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This part of NB/T 10523 stipulates the laboratory mechanical performance test principles and test strips of drum shearer (hereinafter referred to as "shearer") Parts, equipment, test methods, data analysis and processing.

This section applies to the laboratory mechanical performance test and inspection of the drum shearer used in the longwall coal mining method.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB 5903 Industrial closed gear oil

GB 11118.1 hydraulic oil (L-HL, L-HM, L-HV, L-HS, L-HG)

GB/T 20485 Vibration and shock sensor calibration method

GB/T 20522 Semiconductor Sensor Part 14-3.Semiconductor Sensor --- Pressure Sensor

GB/T 34535 Lubricants, industrial oils and related products (L category) X group (lubricating grease) specification

GB/T 35060.1-2018 Drum Shearer General Technical Requirements Part 1: Complete Machine

JJF1469 Calibration Specification for Strain Sensor Measuring Instrument

3 Terms and definitions

The following terms and definitions apply to this document.