JB/T 8552-1997 This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of four-wheeled agricultural transport vehicle axles (hereinafter referred to as axles). This standard applies to axles of four-wheeled agricultural transport vehicles. JB/T 8552-1997 Technical conditions for axles of four-wheeled agricultural transport vehicles JB/T8552-1997 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T 8552-1997
Technical Specifications for Half Axles of Four-wheeled Agricultural Transport Vehicles
Published on April 15, 1997
Ministry of Machinery Industry of the People's Republic of China
Implemented on January 1, 1998
IE/T B552-1997
"This standard was formulated with consideration of the use of four-wheeled agricultural transport vehicles and the relevant countries. The standard was proposed by the State Administration of Tractor Marking and Development 1, and the drafting units are: the Ministry of Agriculture and Rural Affairs, the Central Plains Axle Parts Testing Institute, and the drafters of this standard are Yuan Keqiu, Nai Haixiang, and Guan You. 1 Scope
Machinery Industry Standard of the People's Republic of China
Technical Conditions for Half Axles of Four-wheeled Agricultural Transport Vehicles
JB/T8552-1997
Specifies the technical requirements, inspection methods, inspection rules, marking, packaging and treatment of half axles of four-wheeled agricultural transport vehicles (with two micro-inspections).
This standard is applicable to half axles of three-wheeled agricultural transport vehicles. 2 Referenced Standards
The following standards are strictly prohibited The provisions cited in this standard constitute the text of this standard. The versions shown in this standard are effective at the time of publication: The new standard is revised and used urgently. All rooms are required to use the following new versions of the standard: GB-wwW.bzxz.Net
and our inspection method mark
Huibei inspection odd number sampling sequence and other thick tables: GB2228-57
3 Gui technical requirements||tt ||31 When the period of this certificate is involved, the product drawings and technical parts approved by the manufacturer shall be manufactured. When there are special requirements, the decision shall be made in accordance with the cooperation between the two manufacturers and the manufacturer.
3.2 Under the requirements of product design, it is recommended to use single-axis 4, 12M0, 0Mm40MM, 3C.MnMmSinCV and 45 steel, and other materials that meet the requirements of this certificate may be used. 33 Recommended fire The core hardness of the piece should be 245-28FB2~30HR) during the lock period. The outer surface of the product should not be lower than the specified R, the HRC of the siliconized part should be within the specified depth range, the diameter of the part should be greater than the specified depth of the siliconized layer, and the flange hardness should not be lower than 2HR. The guarantee: the performance index requirements of the parts are also excellent. Other heat treatment processes are also used, such as orthogonal treatment After the surface treatment process, the surface treatment is smooth and the surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. The surface is not smooth. .5) The center angle of the rod root is greater than 3.2, and the matching surface with the thrust bearing and the cat is not large. The external medical centering table of the chain is not large enough to match R1.6. The centering table is smaller than R,3.23.6. When the flat axis is used to filter the line, the shape and mutual tolerance of the relevant positions shall comply with the following regulations: 3) The belt surface including the runout tolerance grade of the plate installed and the shaft system is not 9 grade) The actual pin table is matched with the shaft system. The movable tolerance of this method is 7 grade:) The inner diameter tolerance of the shaft collar shall not be less than S; d) The radial tolerance of the centering surface of the chain shall not be lower than Grade 10; The radial tolerance of other surfaces of the clamping part shall not be lower than Grade 12; The tolerance of the flange bolt hole shall not be greater than 0.2m. Approved by the Ministry of Machinery Industry on April 15, 1907
Implemented on January 1, 1998
3. The inner part of the half shaft shall not have defects such as cracks. JB/T 8552-1997
3.8 The pitch tolerance, tooth shape tolerance and tooth direction tolerance of the half shaft teeth shall comply with the requirements of the production: 3.9 The surface of the half shaft shall not have defects such as slack, pitting, skinning, and marks; The surface center of the half shaft shall be allowed to have cracks. The wear marks on the chippers are actually not large. The length and the new surface of the same core are not allowed to be excessively controlled. 3.10 The half shaft can be seven
310. The thrust torque strength of the shaft is not less than 1.0. 3.102 The median service life of the half shaft is 30×10.90% survival rate, =25×103.11 Warranty period: Under the condition that the user complies with the installation, maintenance and use regulations of the agricultural vehicle instruction manual, the service life may be longer than the warranty period specified in the main engine for three months. During the warranty period, the manufacturer will provide the "three guarantees" for any problems caused by poor manufacturing quality or malfunction of the product for a period of 12 days.
4 Test method
4.1 Surface hardness shall be tested by Rockwell or Elbow method: Measure three places around the surface and at intervals of about 12 (\). The hardness shall not exceed 33HKt. The hardness shall be based on the Elbow hardness method. 4.2 Effective hardening depth determination method
4.2.1 The quenching and tempering depth can be measured by the phase method until the iron content is exceeded. 4.2.2 Induction heat treatment method is recommended for effective hardening layer depth. 4.3 The half shaft shall be inspected and accepted by the plan or single unit. 4.4 The half shaft shall be tested for reliable reverse torsional strength and life of the joint according to the relevant specifications. 4.5 The flaw detector shall be used to check the number of internal cracks, etc. After the reverse flaw detection, the product shall be returned to the manufacturer after passing the inspection. 5.1 Factory inspection 3, 1 Each product shall be inspected and approved by the manufacturer. 5.1.2 The appearance of the half shaft shall be slightly better than the appearance of the half shaft. 5.1. 3.2.1 When the semi-auxiliary products of the third-generation products are inspected in accordance with the provisions of G2828, the inspection value of 3.1~3.10 shall be carried out. When the new products or the improved products of the market are inspected, the quality shall be tested and the effectiveness shall be tested in accordance with the provisions of the third-generation products. 5.2.3 The general manager of the order shall have the right to order the products for sorting. Production, inspection and production items and rules, in order to provide the agreed sampling before the capture of the individual quality inspection and inspection of the wood level should be GB2828 ruling mark, packaging, transportation and storage
6" International benefits
The flange on the outside of the sequence must be marked with the manufacturer's mark, 6.2 Other packaging
6.2.1 Half-load packaging should adopt the anti-smashing and collision damage packaging method: 6.2.2 The half-axle is packed with the following documents
1) Product certificate:
1 Use production opinion feedback list,
Packing list,
JB/T 8552·:J997
6.2.3 The following contents shall be marked on the outside of the packing box: its national marking shall comply with the regulations of 191: >> Factory name, certification number, model number, serial number and name, total mass
e Overall dimensions:
) to which the goods are sent
g) Transportation precautions
1) Packing date (year, month)2) Do not take into account the phenomenon of theft during transportation.
6.4.1 "Axle products are not allowed to be stored in the bed room for ten days. 6.4. Under normal storage, the product shall have a valid period of 12 days.
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