GB/T 21489-2018Truck dumper (English PDF)

Foreword

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

This standard replaces GB/T 21489-2008 "Bulk Grain Car Unloading Device". This standard is compared with GB/T 21489-2008, the main technology The changes are as follows.

---Modified and added normative references;

---Modified terms and definitions;

--- Increased the type of the bulk cargo truck unloading device on the sides of the unloading platform;

--- Increased the maximum load capacity in the basic parameters;

--- Increased the size of the platform of the dumping platform;

---Modified the tilt angle of the flap platform;

--- Modified the lifting time and landing time of the flap platform;

---Modified and increased the mechanical performance requirements of bulk grain truck unloading devices;

---Modified and increased the safety requirements for bulk unloading equipment for bulk grain vehicles;

---Modified and increased the inspection methods for the relevant requirements of bulk grain truck unloading devices;

--- Increased the judgment principle of the bulk unloading device for bulk grain vehicles.

1 Scope

This standard specifies the terms and definitions, product type, model and basic parameters, requirements, inspection methods and inspections of bulk grain truck unloading devices. Rules, signs, packaging, transportation and storage.

This standard is applicable to the unloading device for unloading bulk grain vehicles.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 packaging storage and transportation icon

General rules and safety requirements for GB/T 3766 hydraulic drive systems and their components

GB/T 3768 Acoustic sound pressure method for the determination of noise source sound power level

GB/T 5210 paint and varnish pull-off adhesion test

GB 5226.1 Mechanical electrical safety machinery and electrical equipment - Part 1. General technical conditions

GB/T 7251.1 Low-voltage switchgear and control equipment - Part 1. General

General technical requirements for GB/T 7935 hydraulic components

GB/T 13306 signage

GB/T 25218 General technical conditions for the coating of grain and oil machinery products

GB 50168 Electrical installation engineering cable line construction and acceptance specifications

GB 50171 Electrical installation engineering panel, cabinet and secondary circuit wiring construction and acceptance specifications

3 Terms and definitions

The following terms and definitions apply to this document.