First, the numbering rules of domestic auto parts
In the mainland, the auto parts number is compiled according to the "Auto Product Parts Numbering Rules" promulgated and implemented by the China Federation of Automobile Manufacturers on January 1, 1990.
(1) Auto parts number. The auto parts number is composed of the enterprise name code, group number, group number, part number, structural division number, and change experience code (repair part code), as shown in the figure.
The structural zone mark is located after the group number or group number and indicates the different structures of the system assembly or device of the group or group; The structural zone number is located at the number of the part number and indicates the different structures of the part assembly or assembly device.
(2) It is not an independent assembly part number. For connectors or operating parts that are not independent assemblies, the composition of their numbers is shown in Fig.
(3) The number of the part that belongs to the independent assembly. For parts that belong to an independent group assembly, the numbering is shown in the figure.
Second, the description of the numbering rules for domestic auto parts
1. The subject content and scope of application of the standard
1) The numbering rules for parts, assemblies and assembly device drawings of various types of automobiles and semi-trailers that are newly designed and finalized.
2) Applicable to all kinds of automobiles and semi-trailers of parts, assemblies and assembly device numbers, but excluding the number of parts, assemblies and assembly device drawings of special semi-trailers.
2. Standard terminology
1) Group number: use 2 digits to indicate the classification code of the subsystem in each functional system of the car.
2) Classification number: the classification code of the assembly and assembly device diagram is represented by 4 digits. The first 2 digits represent the group number to which it belongs, and the last 2 digits represent the sequence number within the group.
3) Part number: The code of the part, assembly and assembly device diagram with 3 digits.
4) Structural distinction number: use 2 letters or 2 digits to distinguish the characteristic code of different structure, performance and size parameters of the same type of parts, assembly and assembly device drawing.
5) Change experience code: use a letter and one digit to represent the code of the change process of parts, assemblies and assembly device diagrams. When a part or assembly changes greatly, but the first change does not affect the interchange
It is represented by A1, and then A2, A3 and ......; When the first change of a part or assembly affects the interchange, it is represented by B1; If you change the impact swap again, then use C, D... Denote.
6) Repair parts code: repair parts that increase or decrease in size on the basis of standard size shall be numbered in the order of increasing or decreasing their size. Its code is represented by two Chinese pinyin letters, the first letter indicates the size group of the repair part, and the latter letter is the code of the repair part, which is represented by "X". For example, when a repair part has 3 sets of sizes, its code is "BX", "CX", "DX". while
When the standard size of the repair parts of the group is changed to affect the interchange, the size group code should be changed accordingly, and the letters should be arranged backwards according to the last letter used before the change. If the change affects the interchange, the code of the standard size change history is "E", and the corresponding repair part code is "FX", "GX", "HX".
3. The compilation of group number and group number in the auto parts number
There are 58 group numbers and 638 group numbers for domestic auto product parts. The groupings are as follows:
(There are missing numbers in each group, so the start and end numbers do not match the total number of each group)
1) Group 10, engine, a total of 22 groups: 1000-1022;
2) Group 11, supply system, a total of 25 groups: 1100-1128;
3) Group 12, exhaust system, a total of 7 groups: 1200-1207;
4) Group 13, cooling system, a total of 14 groups: 1300-1313;
5) group 15, automatic hydraulic transmission, a total of 5 groups: 1500-1504;
6) group 16, clutch, a total of 6 groups: 1600-1607;
7) group 17, transmission, a total of 6 groups: 1700-1706;
8) Group 18, transfer case, a total of 5 groups: 1800-1804;
9) group 19, sub-transmission, a total of 3 groups: 1900-1902;
10) Group 20, overspeeder, a total of 5 groups: 2000-2004;
11) Group 21, automotive electric drive device, a total of 6 groups: 2100-2105;
12) group 22, transmission shaft, a total of 11 groups: 2200-2241;
13) Group 23, front axle, a total of 12 groups: 2300-2311;
14) Group 24, rear axle, a total of 11 groups: 2400-2410;
15) Group 25, Zhongqiao, a total of 10 groups: 2500-2512;
16) group 27, support connecting device (for tractor car), a total of 17 groups: 2700-2731;
17) Group 28, frame, a total of 11 groups: 2800-2810;
18) Group 29, automobile suspension, a total of 21 groups: 2900-2960;
19) Group 30, front axle, a total of 3 groups: 3000-3003
20) Group 31, wheels and hubs, a total of 7 groups: 3100-3106;
21) group 32, bearing shaft, a total of 3 groups: 3200-3202;
22) group 33, rear axle, a total of 3 groups: 3300-3303;
23) group 34, steering gear, a total of 13 groups: 3400-3413;
24) group 35, brake, a total of 34 groups: 3500-3550;
25) group 36, electronic equipment, 1 group: 3600;
26) Group 37, electrical equipment, a total of 59 groups: 3700-3774;
27) Group 38, instruments and equipment, 24 groups: 3800-3871;
28) Group 39, on-board tools and accessories, a total of 21 groups: 3900-3921;
29) Group 42, special equipment, a total of 13 groups: 4200-4240;
30) group 45, winch, a total of 10 groups: 4500-4509;
31) Group 50, body (cab), a total of 7 groups: 5000-5012
32) group 51, body (cab) floor, a total of 8 groups: 5100-5112;
33) Group 52, wind window, a total of 8 groups: 5200-5207;
34) Group 53, front wall, a total of 7 groups: 5300-5310;
35) Group 54, side wall, a total of 9 groups: 5400-5410;
36) Group 56, rear wall, a total of 11 groups: 5600-5612;
37) Group 57, top cover, a total of 7 groups: 5700-5710;
38) Group 60, canopy and side panel, a total of 6 groups: 6000-6005;
39) Group 61, front side door, a total of 11 groups: 6100-6110;
40) Group 62, rear side door, a total of 11 groups: 6200-6210;
41) Group 63, rear door, a total of 12 groups: 6300-6311;
42) Group 64, driver's door, a total of 9 groups: 6400-6408;
43) Group 66, safety door, a total of 7 groups: 6600-6608;
44) Group 68, driver's seat, a total of 7 groups: 6800-6807;
45) Group 69, front seat, a total of 9 groups: 6900-6908;
46) Group 70, back seat, a total of 8 groups: 7000-7007;
47) Group 71, passenger single seat, a total of 8 groups: 7100-7107;
48) Group 72, passenger double seater, a total of 8 groups: 7200-7207;
49) Group 73, passenger three-seater, a total of 8 groups: 7300-7307;
50) Group 74, multi-passenger seats, a total of 8 groups: 7400-7407;
51) Group 75, folded seats, a total of 8 groups: 7500-7507;
52) Group 78, partition wall, a total of 6 groups: 7800-7805;
53) Group 79, radio communication equipment, a total of 10 groups: 7900-7910;
54) Group 81, air conditioning equipment, a total of 13 groups: 8100-8112;
55) Group 82, Annex, a total of 12 groups: 8200-8219;
56) Group 84, front sheet metal parts, a total of 6 groups: 8400-8405;
57) Group 85, cargo box, a total of 12 groups: 8500-8515;
58) group 86, cargo compartment dumping mechanism, a total of 15 groups: 8600-8616;
3. Numbering rules for standard parts of domestic automobiles
The number of standard parts of domestic automobiles is composed as follows: (ZBT30001-87)
Illustrate:
1) The "class code" in the second part is represented by one digit, and its classification meaning is shown in Table 1-1.
2) The serial number within the class, expressed by two digits, is numbered sequentially in the range of 01-99. Under the condition that the numbered capacity permits, when the second digit is an even number (including "0"), it means a coarse tooth product, which is an odd number
When it means a fine tooth product.
3) Part 3: Change the code, which is represented by a Chinese pinyin letter, press B, C, D...... Use sequentially (no letters "I", "O", "Q", "Z").
4) The fourth part: the size specification code, according to the product model and its characteristic parameters, is represented by numbers, and its number of digits is 2-3 digits or 3-6 digits.
5) The fifth part: where the product standard stipulates that the full thread is made, the full thread code "Q" should be added.
6) Part VI: non-basic mechanical properties and material codes, the basic mechanical properties and materials have been specified in the product standards, and the codes are not marked. The product standard also specifies other mechanical properties that can be used
Capacity, materials, and when selected for these requirements, the corresponding code should be indicated.
7) Part VII: Non-basic surface treatment code, usage is the same as above.
8) The eighth part: the special subordinate part code of the assembly part, which is only used for the parts of the assembly, and its code is listed in the order of numbers from 1.