GB/T 3871.11-1993 Test methods for agricultural wheeled and crawler tractors Part 11: High temperature adaptability test GB/T3871.11-1993 Standard download decompression password: www.bzxz.net

UIC631.371 -629.114.2
National Standard of the People's Republic of China
GB/T 3871 1-~3871.12-93
Test methads for agricultural wheeled and trackilaying tractorsPublished on 1993-03-03
Implemented on 1993.10-01
Published by the State Bureau of Technical Supervision
National Standard of the People's Republic of China
Test methods for agricultural wheeled and trackilaying tractorsPart 11: High temperature adaptability test
Test niethnds for agricultural wheeled and tracklaying traclursPart 17: Suitahility tests for hatatmospher1 Subject content and scope of application
GT 3871.193
This standard specifies the test methods for the adaptability of agricultural light and crawler tractors when used in high temperature environments. This standard is applicable to agricultural light and crawler tractors and other types of tractors. 2 Reference standards
: T37.1 Agricultural wheeled tractor test method Part 1 Requirements B36 Table of contents 3 Test equipment and test accuracy
3.1 Test equipment
It includes: production and testing laboratory, loading equipment (drive shaft or preload indicator shaft dynamometer), test equipment, test point measurement equipment, control and control, single meter, air filter and barometer, etc. 3.2 number 4 degrees
bottom cat foot moment to light, turn short. 0 ditch speed ± 5%, time soil center 2, Yikang 5 (wind speed ten 3.!%, six air delivery! =. 2k1:..
4 Washing test conditions
4.1 The technical state and test requirements of the normal dragging should be determined in accordance with the contract 1.1. The development or discussion of the machine is 4.2 The test conditions should be able to reach the high temperature test temperature without step-by-step artificial wind speed. The wind speed should be the same as the delivery point in the room.
43 The test dragging should be installed in the test room. The wind speed of the machine should be the opposite. 4. The temperature should be placed in the following positions,
The tower temperature; the machine should be roughly uniform in front, behind, in the air, and at the top of the board. The commercial high temperature 5: The chicken recovery value is the sequence of ambient temperature:
The high pressure standard for combustion flow inlet Location: Engine lubrication system: At the oil plug of the oil chamber, the oil intake must be fixed at the box diameter. Note: Transmission system lubrication limit, radiator hole limit, installment vehicle belt applicator delivery port, sweep outlet: State Technical Supervision Bureau 1992-03.03 batch pool 18wwW.bzxz.Net
19531J Institute
GR/T3871.11-93
F, Cooling wave: After the air head water rinsing, before the temperature control & radiator water plant * Allowed air source, away from the air filter, away from the rest of the plan: 1. Exhaust temperature, in the engine air supply; 1: Sense temperature (only for air-cooled engines): factory specified point J head alarm source (only for equipped with a cab Pull! At the mark point of the wire seat: see GB "236) above 6rrm. Two front 1 (mT. Must
45 connected table in front of the front of the pull machine. 2 points from the outside of the pull machine 1. The height above the ground. 6 The exhaust pipe of the test tractor should be sealed with the waste discharge device of the test laboratory. The installation should not affect the control machine.
4.7 Except for the air compressor, the parts of the engine that are necessary for the engine to work (such as liquid discharge, air service, etc.) should be opened before the engine is powered off. If possible, it should be opened under or under the stimulation. The pipe should be in a state of being ... Transfer to the test room and connect it properly. Load and test the parts tightly. 5.2 Test in a windless environment. Put the tractor into some test gears: If the tractor is used, the corresponding gears as indicated in the instructions should be used. If the dynamometer is used, the actual force corresponding to the tractor power number should be selected. Without the engine door fully open, gradually load the parts until the engine reaches the rated speed, the drive wheel or the power output shaft (the power starts at the maximum limit of 7), and the product is always stable (the difference between consecutive tests is not greater than GC>). The test can be started at 3°C ​​and the test temperature is increased by 6°C each time. Keep cooling until the highest working temperature is reached. - A test sweep. The temperature has just exceeded the factory's specified T limit conditions or the traction machine will show the performance of the parts.
, and use the temperature to reach the upper limit specified by the judge:
. The temperature reaches the upper limit specified by the present service; 5 Alliance quality reaches the upper limit specified in the book:
d The transmission oil end also reaches the upper limit specified.
5.3 Carry out or open the test
Self-check the purchase of the room benefit control step in? The test results obtained in the test are close to the limit of the above-mentioned environment: the reverse air release control car 3.5.7.9km/h four states will be released, and each state will be pulled down 5. The full-line method is loaded and tested. With cold temperature pressure, variable humidity, lowering temperature and transmission system certification source closest to the limit of the recent situation to determine the most unfavorable composition piece·design, change the test rate, and love 5.2 kill test. 5 Test results and report
5.1 The test conditions will be accompanied by the operating conditions, the data provided by the equipment will be averaged and the results of the conditions will be recorded in the summary table. 5-2 Safety instruction G33%11.1 The test report of the test is as follows: Test date Test results and test materials Oil: Brand: Engine oil: No. Transmission oil: Brand: Factory specified working limit Test, variable speed drive center H standard Note: Test result: Maximum working damage: Degree of benefit, Additional instructions: Test point GR/T 3871.11—93
Summary table of high temperature performance test results
Test number
Density/6
Stickness/Performance
Adhesion/Degree
Theoretical precision
Study limit products
e/naia
Engine tree K fan
This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the National Tractor Standardization Technical Committee, and the Ministry of Machinery and Electronics Industry or the Machinery Research Institute is responsible for drafting. This standard was drafted by Zhang Weida and Nuojin. 50
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