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GB/T 14248-2008: Determination of braking performance for harvesting machinery
Status: Valid GB/T 14248: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14248-2008 | English | 139 |
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3 days [Need to translate]
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Determination of braking performance for harvesting machinery
| Valid |
GB/T 14248-2008
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| GB/T 14248-1993 | English | 239 |
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2 days [Need to translate]
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Determination of braking performance for harvesting machinery
| Obsolete |
GB/T 14248-1993
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PDF similar to GB/T 14248-2008
Basic data | Standard ID | GB/T 14248-2008 (GB/T14248-2008) | | Description (Translated English) | Determination of braking performance for harvesting machinery | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B91 | | Classification of International Standard | 65.060.50 | | Word Count Estimation | 6,666 | | Date of Issue | 2008-06-10 | | Date of Implementation | 2009-01-01 | | Older Standard (superseded by this standard) | GB/T 14248-1993 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.9 (Total No.122) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the self-propelled harvester brake testing equipment and parameter measurement accuracy, experimental conditions, brake test, parking brake tests. This standard applies to the wheel, crawler harvesting machinery. | GB/T 14248-2008: Determination of braking performance for harvesting machinery---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of braking performance for harvesting machinery
ICS 65.060.50
B91
National Standards of People's Republic of China
Replacing GB/T 14248-1993
Harvester braking performance measurement method
Posted 2008-06-10
2009-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is GB/T 14248-1993 "Harvesting Equipment braking performance measurement method" amendments. This standard
GB/T 14248-1993 compared to the main technical content changes as follows.
--- Increasing the terms and definitions;
--- On the service brake test program have been adjusted;
--- The parking brake to the parking brake, a clear test of time;
--- Remove the hot brake tests.
From the date of implementation of this standard instead of GB/T 14248-1993.
The standard proposed by China Machinery Industry Federation.
This standard by the National Standardization Technical Committee (SAC/TC201) Agricultural machinery centralized.
This standard was drafted. Chinese Academy of Agricultural Mechanization Sciences, Fukuda Lovol International Heavy Industry Co., Ltd.
The main drafters of this standard. Chen Ge, Chen Jun Bao, Zhu Jinguang, Yue Qin.
This standard replaces the standards previously issued as follows.
--- GB/T 14248-1993.
Harvester braking performance measurement method
1 Scope
This standard specifies the self-propelled harvesting machinery and equipment brake test parameter measurement accuracy, test conditions, the service brake test, parking
Brake test.
This standard applies to wheeled, crawler harvesting machinery.
2 Terms and definitions
The following terms and definitions apply to this standard.
2.1
Harvesting machinery or decelerate the motion to stop the movement of the device.
2.2
Even in the case of unmanned slope, so that harvesting machinery to keep it stops state apparatus.
2.3
Brake operating device is actuated to start harvesting machinery to a full stop machine travel distance.
2.4
The braking distance and braking initial velocity calculated deceleration.
Rao = vp
2S
(1)
Where.
Rao --- average deceleration in meters per second squared (m/s2);
Vp --- brake initial velocity in meters per second (m/s);
S --- braking distance in meters (m).
2.5
It means the braking deceleration device or a non-contact instrument detected by the vehicle speed when recording the average sustained deceleration in the instrument.
2.6
Driver brake operating force applying means combined. For the pedals, steering force is measured along the loading point and the driver's hip even
Opponents controls, measured along the loading point and the operating force of the driver shoulder connection; the line.
3 test parameter measurement equipment and accuracy
3.1 Test Equipment
Are. operating force measuring device, pulling force, braking deceleration device or non-contact speed meter, timer, steel tape measure, thermometer, pressure
Table, anemometer and test ramps.
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