JB/T 9023.1-2019 English PDF (JBT9023.1-2019)

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JB/T 9023.1-2019: Downhole Drill - Part 1: Open-Cut Type
JB/T 9023.1-2019
JB
MACHINERY INDUSTRY STANDARD
ICS 73.100.30
D 92
Replacing JB/T 9023.1-1999
Downhole Drill – Part 1.Open-Cut Type
ISSUED ON. MAY 02, 2019
IMPLEMENTED ON. JANUARY 1, 2020
Issued by. Ministry of Industry and Information Technology of the People’s
Republic of China
Table of Contents
Foreword... 3
1 Scope... 6
2 Normative References... 6
3 Types and Basic Parameters... 7
3.1 Types... 7
3.2 Model... 9
3.3 Basic parameters... 9
4 Technical Requirements... 10
4.1 Environmental adaptability... 10
4.2 Basic requirements... 10
4.3 Safety requirements... 12
4.4 Reliability and life requirements... 12
4.5 Completeness requirements... 13
5 Test Methods... 13
5.1 Preparation before the test... 13
5.2 Test requirements... 14
5.3 Test items... 14
6 Inspection Rules... 15
6.1 Exit-factory inspection... 15
6.2 Type inspection... 16
6.3 Judgment rules... 16
7 Marking, Packaging, Transportation and Storage... 17
7.1 Marking... 17
7.2 Packaging... 17
7.3 Transporting... 17
7.4 Storage... 18
Downhole Drill – Part 1.Open-Cut Type
1 Scope
This Part of JB/T 9023 specifies the types and basic parameters, technical requirements, test
methods, inspection rules, marking, packaging, transportation and storage of downhole drills
for open-cut type.
This Part is applicable to downhole drills (hereinafter referred to as drills) used for drilling
blasting holes in open-pit projects such as open-pit mining, water conservancy construction,
railway and national defense construction.
2 Normative References
The following documents are essential to the application of this Document. For the dated
documents, only the versions with the dates indicated are applicable to this Document; for the
undated documents, only the latest version (including all the amendments) is applicable to this
Document.
GB/T 156 Standard voltages
GB/T 3766 Hydraulic fluid power - General rules and safety requirements for systems and
their components
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code)
GB/T 5226.1 Electrical safety of machinery - Electrical equipment of machines - Part 1.
General requirements
GB/T 7935 Hydraulic fluid power - General requirements for hydraulic components
GB/T 8196 Safety of machinery – Guards - General requirements for the design and
construction of fixed and movable guards
GB/T 8420 Earth-moving machinery - Human physical dimensions of operators and
minimum operator space envelope
GB/T 8593.1 Earth-moving machinery - Symbols for operator controls and other displays
- Part 1.Common symbols
GB/T 10095.1-2008 Cylindrical gears - System of accuracy - Part 1.Definitions and
allowable values of deviations relevant to corresponding flanks of gear teeth
GB/T 10095.2-2008 Cylindrical gears - System of accuracy - Part 2.Definitions and
allowable values of deviations relevant to radial composite deviations and runout
information
GB/T 13306 Plates
GB/T 13325 Noise emitted by machinery and equipment - Guideline for the preparation
of test codes of engineering grade requiring noise measurements at the operators or by
standers position
GB/T 13344 Downhole drill hammers and bits
GB/T 13384 General specifications for packing of mechanical and electrical product
GB/T 21153 Earth-moving machinery - Units for dimensions performance and capacities
and their measurement accuracies
GB/T 25706 Code of designations for mining machinery products
HJ 618-2011 Determination of atmospheric articles PM10 and PM2.5 in ambient air by
gravimetric method
JB/T 5943 Construction machinery - General specifications for welding parts
JB/T 5946 Construction machinery - General technical specifications for painting
JB/T 7165 Rock Drilling Machines and Pneumatic Tools - General Specifications for
Assembly
3 Types and Basic Parameters
3.1 Types
Drills are divided into electric motor driven drill or internal combustion engine driven drill
according to the driving mode. They use crawler tracks or tires to travel and rotary impact
drilling. Their basic structural type is shown in Figure 1.
force during movement.
4.2.9 The design of the electrical system shall comply with the provisions of GB/T 5226.1.
4.2.10 The electrical system shall be equipped with an overload protection device to ensure
safety.
4.2.11 The electrical system shall be free of poor contact, failure and leakage.
4.2.12 All parts where the external power supply is introduced into the cable device and the
parts of the fuselage where the cable passes through shall be equipped with transition arcs to
prevent cutting and wear. The cable shall be firmly fixed; the clip shall not be loose; and a
leakage protection device shall be installed.
4.2.13 The design, manufacture, installation and piping of the hydraulic system shall comply
with the provisions of GB/T 3766.
4.2.14 Hydraulic components shall comply with the provisions of GB/T 7935.
4.2.15 The hydraulic system shall be free of oil leakage and be equipped with protective devices
to prevent dust and other impurities from entering.
4.2.16 The drill shall have a flexible, accurate and reliable device for connecting and
disconnecting the drill rod; and the thread type of the drill rod joint shall be indicated in the
relevant documents.
4.2.17 The drill shall be equipped with a rigid hook for towing; and the size of the traction force
shall be indicated in the relevant documents.
4.2.18 The manufacturing accuracy of the gear of the drill reducer shall be no lower than Grade-
8 specified in GB/T 10095.1-2008 and GB/T 10095.2-2008.
4.2.19 When the drill is operating, the maximum oil temperature of the reducer shall not exceed
80°C, and the temperature rise shall not exceed 30°C.
4.2.20 The air-way and water-way systems shall be installed correctly, well sealed, and free of
air and water leakage.
4.2.21 The assembly requirements of the drill shall comply with the provisions of JB/T 7165.
4.2.22 The welding quality of the drill shall comply with the provisions of JB/T 5943.
4.2.23 The coating quality of the drill shall comply with the provisions of JB/T 5946.
4.2.24 The dust removal equipment of the drill shall be complete; and the dust removal effect
shall meet the environmental protection requirements.
4.2.25 The matching downhole impactor and downhole drill bit shall comply with the
provisions of GB/T 13344.
4.2.26 The matching rock drilling tools shall comply with the provisions of relevant national
standards and relevant industry standards.
4.2.27 Drill with special requirements can be manufactured and inspected according to the
technical agreement between the user and the manufacturer.
4.3 Safety requirements
4.3.1 The operating parts of the driver's cab, the parts for loading and unloading drill rods and
other parts that are often touched by the human body must not have sharp edges and corners,
and burrs must be removed.
4.3.2 The dust concentration (PM10) in the driver's cab shall not exceed 2 mg/m3.
4.3.3 The dust concentration (PM10) at the exhaust port of the drill dust removal system shall
not exceed 100 mg/m3.
4.3.4 The noise in the driver's cab shall not exceed 85 dB (A).
4.3.5 The total vibration frequency in the driver's cab shall be less than 250 Hz, the local
vibration frequency is (16~250) Hz, and the vibration acceleration is 2g.
4.3.6 The illuminance in the driver's cab shall be no less than 100 lx.
4....