JB/T 6294-1992 Rules for Type Inspection of Agricultural Tractors JB/T6294-1992 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T6294-92
Agricultural Tractor
1992-06-10 Issued
Type Inspection Rules
1993-07-01 Implementation
Issued by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Machinery Industry Standard of the People's Republic of China
Agricultural Tractor
Subject Content and Scope of Application
Type Inspection Rules
1 This standard specifies the content and requirements of the type inspection of agricultural tractors. This standard applies to agricultural wheeled, crawler and walk-behind tractors. 2 Reference standards
GB2828
GB6229
GB7121
GB7927
GB10910bzxz.net
JB/T6294-92
Count sampling procedures and sampling tables for batch inspection (applicable to inspection of continuous batches)Test methods for walking tractors
Test methods and acceptance conditions for strength of protective devices for agricultural and forestry wheeled tractorsVibration measurement methods for walking tractors
Whole body vibration of drivers of agricultural wheeled tractors Dynamic measurement GB/T3871.1~3871.12 Test methods for agricultural wheeled and crawler tractors JB/T5183
ZBT63010
3 Type inspection content
Complete machine performance inspection
Test method for hydrostatic steering system of wheeled tractors Rapid durability test method for tractor transmission system Test assessment method for diesel engine bench test
Test method for tractor clutch bench test
Prototype acceptance and running-in, wheeled and crawler tractors shall be in accordance with GB/T3871. 1. Walking tractors shall be inspected according to GB6229; whole machine parameter determination shall be inspected according to GB/T3871.2 or GB6229; power output shaft power test shall be inspected according to GB/T3871.3 or GB6229; hydraulic lifting capacity and output power test shall be inspected according to GB/T3871.4; steering and clutch operation test shall be inspected according to GB/T3871.5 or GB6229; brake test shall be inspected according to GB/T3871.6 or GB6229; field of vision determination shall be inspected according to GB/T3871.4. m. The test of the strength of the protective device of wheeled tractors shall be carried out in accordance with GB7121. 3.2
Component bench durability test
Engine bench durability test (2000h), to be tested according to NJ289; a.
b. Clutch bench durability test (60,000 times). To be tested according to NJ403; Transmission system bench durability test (1200h), to be tested according to ZBT63010; c.
d. Power output shaft bench durability test (600h), to be tested according to ZBT63010; Approved by the Ministry of Machinery and Electronics Industry on June 10, 1992, implemented on July 1, 1993
JB/T6294-92
e. Steering system (including hydraulic and mechanical) bench durability test (300,000 times), of which the hydrostatic steering system shall be tested according to JB/T5183, and the mechanical steering system shall be tested according to relevant standards; f. Hydraulic suspension system bench durability test (300,000 times), tested according to relevant standards; 9. Braking system bench durability test, tested according to relevant standards; Whole machine jolt test, tested according to relevant standards. h.
3.3 Whole machine reliability test
Tested according to relevant standards for tractor product reliability assessment. 3.4 Whole machine use test
Tested according to GB/T3871.12.
4 Type inspection requirements
Type inspection prototypes should comply with the requirements of product drawings and general technical conditions. 4.1
4.2 New product type inspection
4.2.1 Wheeled tractors shall be inspected according to Articles 3.1 and 3.4, or according to Articles 3.1, 3.2 and 3.3. Select one according to the situation. 4.2.2 Walking tractors shall be inspected in accordance with Article 3.1 a, b, c, e, f, h, i, j, k, 1 and Article 3.4, or in accordance with Article 3.1 a, b, c, e, f, h, i, j, k, 1 and Article 3.2 a, b, c, h and Article 3.3. Select one of them according to the circumstances. 4.2.3 Crawler tractors shall be inspected in accordance with Articles 3.1 a~k and Article 3.4. 4.3 Major Improvement Product Type Inspection
Wheeled and walking tractors shall be inspected in accordance with Article 3.1 for the performance of the whole machine, the bench durability inspection of the major improvement components in Article 3.2 and the inspection in Article 3.3 due to the improvement of the components. 4.4 Other Product Type Inspection
a. Sampling shall be carried out in accordance with the normal sampling plan specified in GB2828. b. Part of the inspection content may be specified according to the specific circumstances. 4.5 The number of tractor complete machines or parts used for type inspection is shown in the following table: Inspection items
Article 3.1
Article 3.2
Article 3.3
Article 3.4
Note: 1) The inspection of Article 3.2h can be carried out with the prototype inspected in Article 3.1. Additional remarks:
This standard was proposed and managed by the Luoyang Tractor Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by the Luoyang Tractor Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Pan Keqiu, Wu Xizhang and Zhu Yibin. 2
2 complete machines
1 set
2 complete machines
People's Republic of China
Mechanical Industry Standard
Type Inspection Rules
Agricultural Tractors
JB/T6294—92
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Mechanical and Electronic Industry Institute Printing (P.O. Box 8144, Beijing 100081)
Copyright reserved
Reproduction prohibited
D1/16 Printing sheet 3/8
Format 880×1230
Word count 4000
First edition October 1992
First printing October 1992
Print run 00.001-500
Number 0940
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