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GB/T 3871.20-2015: Agricultural tractors -- Test procedures -- Part 20: Test methods of tractor bumpiness
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| GB/T 3871.20-2015 | English | 129 |
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Agricultural tractors -- Test procedures -- Part 20: Test methods of tractor bumpiness
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GB/T 3871.20-2015
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Basic data | Standard ID | GB/T 3871.20-2015 (GB/T3871.20-2015) | | Description (Translated English) | Agricultural tractors -- Test procedures -- Part 20: Test methods of tractor bumpiness | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | T61 | | Classification of International Standard | 65.060.10 | | Word Count Estimation | 6,662 | | Date of Issue | 2015-12-10 | | Date of Implementation | 2016-07-01 | | Quoted Standard | GB/T 3871.1-2006; GB/T 24648.2 | | Regulation (derived from) | National Standard Announcement 2015 No.38 | | 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 test method for agricultural tractors bumpy. This standard applies to wheeled tractor and support system, covering parts and fittings, etc. Reliability assessment under vibration and shock conditions. | GB/T 3871.20-2015: Agricultural tractors -- Test procedures -- Part 20: Test methods of tractor bumpiness
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Agricultural tractors - Test procedures - Part 20. Test methods of tractor bumpiness
ICS 65.060.10
T61
National Standards of People's Republic of China
Agricultural tractors - Test procedures
Part 20. Test thrashing
Part 20. Testmethodsoftractorbumpiness
Issued on. 2015-12-10
2016-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3871 "Agricultural tractors - Test procedures" is divided into 21 parts.
--- Part 1. General requirements;
--- Part 2. Machine parameter measurement;
--- Part 3. PTO power tests;
--- Part 4. Rear three - point linkage lifting capacity;
--- Part 5. By turning circle and circle diameter;
--- Part 6. Agriculture and Forestry braking performance determined;
--- Part 7. driver's vision;
--- Part 8. Noise measurement;
--- Part 9. Power tests for drawbar;
--- Part 10. Low temperature starting;
--- Part 11. high temperature performance test;
--- Part 12. Use a trial;
--- Part 13. Measurement of exhaust smoke;
--- Part 14. part of the power output of the non-mechanical power transmission output shaft;
--- Part 15. centroid;
--- Part 16. Determination of shaft power;
--- Part 17. Engine air filter;
--- Part 18. Tractor implement interface hydraulic power;
--- Part 19. wheeled tractor steering performance;
--- Part 20. bumpy test;
--- Part 21. stability.
This part of GB /Part 20 T 3871's.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This part is proposed by China Machinery Industry Federation.
This part of the National Standardization Technical Committee tractor (SAC/TC140) centralized.
This section is drafted. Luoyang Xiyuan vehicle inspection and Power Limited, Kyle Xuzhou Agricultural Equipment Co., Ltd., Jiangsu often
Hair Agricultural Equipment Co., Ltd.
The main drafters of this section. still Rope, Zhangguang Qing, Zhang Guoying, Li Ling, He Jifeng, WEAR BEHAVIORS, Chen Zhiqiang, Liaohan Ping.
Agricultural tractors - Test procedures
Part 20. Test thrashing
1 Scope
This section GB/T 3871 specifies the method for agricultural tractors bumpy trial.
This section applies to wheeled tractor and support system, covering parts and fittings and other work under vibration and impact conditions Reliability
Assessment.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 3871.1-2006 Agricultural tractors - Test procedures - Part 1. General requirements
GB/T 24648.2 engineering of agricultural products for the evaluation index system reliability and fault classification General
3 Test conditions
3.1 tractors bumpy test site should be the hard ground. Specifications and laying obstacles manner, circumferentially specified in Figure A.1 carried out (see
Appendix A). As different experimental farm tractors and radius of gyration illustration, obstructions can increase or decrease, but each obstacle height and arrangement (one-sided
And bilateral) should be the same as illustrated. It should be greater than 1.5 times the distance between the obstacle wheeled tractor wheelbase.
3.2 Measurement ago wheeled tractor, rear axle vibration sensor should be installed before the close, the rear wheel axis and the vertical plane of the longitudinal tractor
The upper portion of said intersection line, close to the axle at; tractor measured vibration sensor should be installed in the upper portion of the outer side of the drive shaft housing.
3.3 Bilateral obstacle, wheeled tractors and tractor front axle drive shaft housing maximum vertical vibration acceleration of 40 2 0m/s2, Wheel
Tractor rear axle maximum vertical vibration acceleration of 25 2 0m/s2. Took 6km/h ~ 7km/h speed can not be achieved, by appropriate
Adjust the tire pressure to achieve.
3.4 tractors shall be tested continuously bumpy, bumpy times no greater than 18kW wheeled tractors and tractor is 5 × 104 times,
The number of bumps wheeled tractors 18kW ~ 36kW of 7 × 104 times. Bumpy times greater than 36kW wheeled tractors for
8 × 104 times. Forward and reverse bumps times each half.
3.5 wheeled tractor bump test, the driver's seat of the mass of the additional weight 65kg ± 1kg (equivalent to 75kg driver assigned
Quality on the seat), front and rear counterweight according to the instructions specified in the configuration state of transport; walking tractor bumps in the test, each of the armrest on the aggravating
Block 2kg.
3.6 When the tractor bumpy test for freedom obstacle, can be equipped with semi-trailers tested, but transferred to the carrier trailer towing point
Netherlands, shall be equal to the load during transport operations.
3.7 tractors per bump 10,000 times, we want to shift maintenance, and inspection of the fitting is tightened, maintenance item in accordance with the instructions provided
get on.
3.8 bump test, such as a tractor or a catastrophic failure or fatal fault GB/T 24648.2 specified, the test should be stopped.
4 Equipment
4.1 vibrometer set, stopwatch, barometers like.
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