JB/T 10247-2016 PDF English (JB/T 10247-2001: Older version)
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Open-Pit Crawler Type Downhole Drills
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JB/T 10247-2016: PDF in English (JBT 10247-2016) JB/T 10247-2016
JB
MECHANICAL INDUSTRY STANDARD
ICS 73.100.10
J 84
Filling No.. 55134-2016
Replacing JB/T 10247-2001
Open-Pit Crawler Type Downhole Drills
ISSUED ON. APRIL 5, 2016
IMPLEMENTED ON. SEPTEMBER 1, 2016
Issued by. Ministry of Industry and Information Technology of the People’s
Republic of China.
Table of Contents
Foreword... 3
1 Scope... 4
2 Normative References... 4
3 Basic Parameters... 5
Figure 1 -- Schematic Diagram of Product Outline Structure... 6
Table 1 -- Basic Parameters of the Product... 6
4 Technical Requirements... 6
5 Inspection Methods... 7
5.1 Inspection Conditions... 7
5.2 Idle Running Test... 8
5.3 Chassis Function Test... 8
5.4 Climbing and Braking Test... 8
5.5 Drill Boom Function Test... 8
Figure 2 -- Schematic Diagram of the Projection Measurement Method of the Drill Boom
Swing Angle... 9
5.6 Propeller Function Test... 9
5.7 Sealing Performance Test... 10
5.8 Thread Tightening Torque Test... 10
5.9 Rock Drilling Test... 10
5.10 Weighing Test... 10
5.11 Product Safety Inspection... 10
6 Inspection Rules... 10
6.1 Exit-Factory Inspection... 10
6.2 Type Inspection... 11
6.3 Inspection Items and Quality Characteristic Categories of the Product... 11
Table 2 -- Inspection Items and Quality Characteristic Categories of the Product... 11
6.4 Sampling... 12
6.5 Sampling Rules... 12
7 Marking, Packaging, Transportation and Storage... 12
7.1 Marking... 12
7.2 Packaging and Transportation... 13
7.3 Storage... 13
Foreword
This Standard was drafted in accordance with the rules provided in GB/T 1.1-2009.
This Standard serves as a replacement of JB/T 10247-2001 Open-Pit Crawler Type
Downhole Drills. In comparison with JB/T 10247-2001, the main technical changes are as
follows.
--- The Table of Contents is added;
--- The Normative References are updated;
--- The abolished JB 8684 is deleted (see Chapter 2 of Version 2004);
--- GB 17957-2005 is added to serve as a replacement of JB 8684;
--- The drilling diameter (mm) in Table 1 is adjusted from “≥80” to “80~203”, the
drilling depth (m) is adjusted from “≥20” to “≥25”, and the idling speed of the
slewing device (r/min) is adjusted from “≥50” to “0~150”;
--- The schematic diagram of outline structure and the schematic diagram of the
projection measurement method of the drill boom swing angle in 5.5 are added;
--- Chapter 6 is modified and supplemented.
This Standard was proposed by China Machinery Industry Federation.
This Standard shall be under the jurisdiction of National Technical Committee 173 on Rock
Drilling Machines and Pneumatic Tools of Standardization Administration of China
(SAC/TC 173).
The drafting organizations of this Standard. Tianshui Pneumatic Machinery Co., Ltd.;
Zhejiang Hongwuhuan Group Co., Ltd.; Zhejiang Kaishan Heavy Industry Co., Ltd.
The main drafters of this Standard. He Jun, Zhang Jirong, Zhang Chunmei, Gui Hualiang,
Lu Shixin.
The previous issued versions of the standards this Standard replaces are as follows.
--- JB/T 10247-2001.
Open-Pit Crawler Type Downhole Drills
1 Scope
This Standard specifies the basic parameters, technical requirements, inspection methods,
inspection rules, marking, packaging, transportation and storage of open-pit crawler type
downhole drills.
This Standard is applicable to the open-pit crawler type downhole drills powered by
compressed air (hereinafter referred to as products).
2 Normative References
The following documents are indispensable to the application of this document. In terms of
references with a specified date, only versions with a specified date are applicable to this
document. In terms of references without a specified date, the latest version (including all
the modifications) is applicable to this document.
GB/T 5621 Test Methods of Performance for Rock Drilling Machines and Pneumatic Tools
GB/T 5898-2004 Measurement of Noise Emitted by Rock Drilling Machines and Pneumatic
Tools - Engineering Method
GB/T 13306-2011 Plates
GB/T 13344-2010 Downhole Drill Hammers and Bits
GB/T 13916-2013 Unnoted Tolerance of Shape and Position for Stamping Parts
GB 17957-2005 Rock Drilling Machines and Pneumatic Tools - Safety Requirements
JB/T 1590 Type Organization Method for Rock Drilling Machines and Pneumatic Tools
JB/T 3576 General Specifications for Rust-Preventing of Rock-Drilling Machines and
Pneumatic Tools
JB/T 4385.1-1999 General Specifications for Open Die Forgings on Hammer
JB/T 5000.4-2007 Heavy Mechanical General Techniques and Standards - Part 4.Iron
Casting
JB/T 5000.6-2007 Heavy Mechanical General Techniques and Standards - Part 6.Steel
Castings
JB/T 7161 General Specification of Heat-Treatment for Rock Drilling Machines and
Pneumatic Tools
4.5 The quality of steel die forgings shall comply with the provisions of JB/T 7163.
4.6 The quality of free die forgings shall comply with the provisions of JB/T 4385.1-1999.
4.7 The unnoted tolerance dimensions of stamping parts shall comply with the provisions of
GB/T 13916-2013.
4.8 The quality of machined parts shall comply with the provisions of JB/T 7164.
4.9 The quality of heat-treated parts shall comply with the provisions of JB/T 7161.
4.10 The quality of welding parts shall comply with the provisions of JB/T 7167.
4.11 The assembly quality of the product shall comply with the provisions of JB/T 7165.
4.12 There shall be no leakage at the connection parts or thread seals of hydraulic and
pneumatic parts.
4.13 Each hose shall be connected according to the system diagram, and no twisting or
folding shall occur.
4.14 The tightening torque of fasteners shall comply with the provisions of QC/T 518-2013.
4.15 The tightening torque of threads shall comply with the provisions of JB/T 7165.
4.16 The painting quality of the product shall comply with the provisions of JB/T 9857.
4.17 The rust-preventing quality of the product shall comply with the provisions of JB/T
3576.
4.18 The matching downhole drill hammer and bit shall comply with the provisions of GB/T
13344-2010.
4.19 The safety requirements of the product shall comply with the provisions of GB
17957-2005.
4.20 The quality of iron castings shall comply with the provisions of JB/T 5000.4-2007.
5 Inspection Methods
5.1 Inspection Conditions
5.1.1 The instruments and meters used for measurement shall have verification certificates
within the validity period and meet the measurement accuracy requirements. Check and
calibrate the meters before the test.
5.1.2 The ambient temperature is 0°C~40°C, the relative humidity is below 80%, and the
altitude does not exceed 1,500 m.
5.1.3 The travel test shall be carried out on a flat, dry, and well-adhesive dirt road, with a
length of not less than 20 m.
5.1.4 The climbing test shall be carried out on a flat, solid earth ramp or gravel clay ramp,
with a slope of not less than the specified value and a length of not less than 10 m.
5.2 Idle Running Test
Connect the air source and check that all connections shall meet the requirements and there
shall be no wrong installation or missing installation; start the travel motor to carry out
forward, backward, and turning tests, check that the travel shall be normal and the travel
direction shall be consistent with the operating direction; start the hydraulic pump and run it
idle for about 10 min, and check whether the operating direction of the pressure valve handle
and the multi-way valve handle is consistent with their movement direction; the pressure
reducing valve shall function properly and be able to adjust the pressure to the measurement
range specified in Table 1.
5.3 Chassis Function Test
5.3.1 The product is running normally, and its travel speed is measured with a tape measure
and a stopwatch.
5.3.2 Fix one end of a tensioner with an effective range, connect the other end to the product
with a wire rope, and measure its traction while the product is running.
5.3.3 When the propeller is in a vertical state, the chassis of the product pitches with the aid
of the leveling cylinder, and the crawler leveling angle is detected with an inclinometer or a
weight and an angle gauge.
5.4 Climbing and Braking Test
The product travels on the specified slope for a distance of not less than 5 m; while
measuring the gradability, the product moves downward and brakes suddenly, and the
sliding distance is measured with a tape measure. Repeat three times and take the average
value.
5.5 Drill Boom Function Test
The drill boom shall be stable when performing various actions and can be braked at any
position. At the same time, it shall meet the following requirements.
--- The drill boom pitches with the aid of the arm cylinder, and its pitch angle is
detected with an inclinometer or a weight and an angle gauge;
--- Adjust the drill boom to an appropriate angle, put the propeller in a horizontal
position, hang a weight on the front and rear ends of the drill boom, and enable the
drill boom to swing with the aid of the swing cylinder. Draw a fan-shaped surface
diagram of the left and right extreme positions of the drill boom on the ground, as
5.6.4 When the propeller is in a vertical state, the propeller is swung left and right with the
aid of the propeller swing cylinder. Use an inclinometer or a weight and an angle gauge to
detect its swing angle, and move the positioning pin to detect the swing angle of the
propeller when the swing cylinder is fixed in two holes.
5.6.5 The propeller pitches with the aid of the pitch cylinder, and its pitch angle is detected
with an inclinometer or a weight and an angle gauge.
5.7 Sealing Performance Test
During the whole process of testing, observe at any time that there shall be no leakage at the
joint surfaces and pipe joints of the gas and liquid systems; after 15 minutes of static
pressure maintenance, there shall be no obvious leakage at the joints; move the center of
gravity of the propeller to the front end, extend the arm cylinder to the maximum, and the
retraction of the piston rod in 4 h shall be less than 3 mm.
5.8 Thread Tightening Torque Test
Use a torque wrench to spot check the tightening torque of fasteners and pipe joints at key
parts of the product.
5.9 Rock Drilling Test
The gas consumption for rock drilling of the product shall be tested in accordance with the
provisions of GB/T 5621.The noise shall be tested in accordance with the provisions of
GB/T 5898-2004.
5.10 Weighing Test
The overall unit weight of the product is measured by weighing method.
5.11 Product Safety Inspection
The product safety inspection shall be carried out in accordance with the provisions of GB
17957-2005.
6 Inspection Rules
6.1 Exit-Factory Inspection
The products shall be inspected item by item before leaving the factory. The inspection items
include product assembly quality and appearance quality as well as the provisions of 5.2 to
5.9.All performance and quality indicators shall comply with the provisions of Table 1 as
well as 4.14 and 4.15.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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