This standard specifies the product model and part and component numbering rules for electric drive mining dump trucks. This standard applies to rear-dump electric drive mining dump trucks powered by diesel engines. JB/T 6770-1993 Product model and part numbering rules for electric drive mining dump trucks JB/T6770-1993 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T6770-1993
Product Model of Electric Drive Mining Dump Truck
And Parts Numbering Rules
Published on August 21, 1993
Ministry of Machinery Industry of the People's Republic of ChinabzxZ.net
Implemented on October 1, 1993
Mechanical Industry Standard of the People's Republic of China
Product Model of Electric Drive Mining Dump Truck
And Parts Numbering Rules
Main Contents and Scope of Application
This standard specifies the product model and parts and component numbering rules of electric drive mining dump trucks. This standard applies to rear-dumping electric drive mining dump trucks powered by diesel engines (hereinafter referred to as dump trucks). 2 Reference standards
GB8170
ZB/TT04005
Digital rounding rules
Automotive parts numbering rules
Regulations for dump truck product models
The dump truck product model is the vehicle code, which consists of Chinese phonetic characters and five digits. The arrangement is as follows, 3.1
Chinese phonetic character part
Five digit part
口口口
Dump truck product serial number
JB/T6770-1993
Dump truck main parameter code
Vehicle category code
Enterprise code
3.2The Chinese phonetic character part is the enterprise code, which is generally composed of two Chinese phonetic letters. 3.3 The first digit of the five-digit number is the vehicle category code, which is always 3 for electric drive mining dump trucks. The second, third and fourth digits are the main parameter codes of the dump truck. The number itself represents the total mass of the vehicle in tons. The number is rounded according to the provisions of GB8170. The fifth digit is the product serial number of the dump truck, and the numbers are used in sequence from 0, 1, 2, etc. For example: △△31900 model represents the first type of electric drive mining dump truck with a total vehicle mass of 190t produced by a certain manufacturer. When there are major changes in the total vehicle mass, power performance, etc., a new model should be used. 3.4
For variant products derived from a certain model, Chinese pinyin letters are added after the original model. Pinyin letters are added in order. In order to avoid confusion with numbers, "I" and "O" in Chinese pinyin letters shall not be used. 3.6 The so-called "deformed" product refers to a certain model with certain changes in structure or structural changes made according to the special requirements of the user. For example, the sliding window of the cab is changed to a lifting window or a diesel engine from a different manufacturer is installed. 4 Numbering of parts and components
4.1 General
4.1.1 In principle, the special parts of dump trucks adopt the subordinate numbering system, which uses a 7-digit basic number, with the dump truck model number in front, separated by a short dash in the middle. The basic number and the model together form the code of the special part, which is also the drawing number of the special part. Approved by the Ministry of Machinery Industry on August 21, 1993
Implementation on October 1, 1993
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JB/T 6770-1993
0000O0
Grouping number
Part number
2 In order to reduce the workload and further simplify the numbering, it is allowed to omit the enterprise code on the parts drawings, but all codes must be written on the assembly drawings, schematic drawings 4.1.2
and the binding cover and shall not be omitted. 4.1.3 If the electric drive system manufacturer adopts a classification numbering system, it is not subject to the restrictions of this standard. 4.1.4 The marking method of standard parts shall comply with relevant regulations and is not within the scope of this standard. 4.1.5 Purchased parts shall use the original factory code.
4.1.6 Products that have been modified from purchased parts should be numbered according to this standard, while the unchanged parts should still use the original factory code. 4.2 Group number and subgroup number
4.2.1 Group number is the classification code for subsystems within each functional system of a dump truck. It is represented by two digits. 4.2.2 Subgroup number is the classification code for the assembly and assembly device of a dump truck. It is represented by four digits, the first two digits represent the group number to which it belongs, and the last two digits represent its sequence number within the group. 4.2.3 The group number and subgroup number of the mechanical part of the dump truck product are compiled according to the appendix of ZB/TT04005. If the dump truck telex system adopts the subordinate number, the group number and subgroup number can be compiled according to Table 1 of this standard. 4.2.4
Group number and subgroup number of telex system
Group number
Group number
Group number
Group number
Numbering rules for parts and components
91 Main generator
Main generator assembly
Exciter
Ventilator
93 Traction motor
Traction motor assembly
95 Electronic control system
Electrical control system
Electrical cabinet
Liwei screen
Chuji screen
Brake resistor cabinet
Brake resistor
Extended electric brake cabinet
97 Overall wiring
Overall wiring
High voltage wiring
Low voltage wiring
JB/T 6770-1993
4.3.1 The first four digits of the basic number of dump truck parts and components are the group number to which they belong, and the last three digits are the serial number of the part within the group number range.
4.3.2 When the same drawing represents parts with the same shape but different surface sizes, the part numbers should be continuous. 4.3.3 When a part of a certain model is used in another model without any change, the original code is still used. 4.4 Variants of parts and components
4.4.1 When the structure, material or process of a part is changed, it is called a variant, and a suffix should be added after the original code. 4.4.2 If the parts are modified but the interchangeability is not affected, the suffix "一A" shall be added after the code. If the second modification does not affect the interchangeability, the suffix "-A2\" shall be added.
4.4.3 If the parts are not interchangeable with the original parts after deformation, the suffix "一B\" shall be added after the code. If the second modification is not interchangeable with the parts of the previous modification, the suffix "一C" shall be added. If they are interchangeable, the suffix "一B2" shall be added after the basic number. That is, the suffixes with the same pinyin letters are interchangeable parts, and the suffixes with different pinyin letters are not interchangeable parts. The suffixes of the modified parts shall be compiled in the order of the Chinese pinyin letters, but in order to avoid confusion, "I", "O", "X" and 4. 4. 4
Additional Notes:
This standard is proposed and managed by the Xiangtan Traction Electrical Equipment Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Xiangtan Traction Electrical Equipment Research Institute of the Ministry of Machinery Industry. 3
People's Republic of China
Mechanical Industry Standard
Electric Drive Mining Dump Truck Product Model
And Parts Numbering Rules
JB/T 6770-1993
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
(No. 2 Shouti South Road, Beijing
Langbian 100044)
Format 880×12301/16 Printing Sheet X/X Number of Words XXX,XXX19XX Edition Xth Month 19XX Printing Number of Prints 1-XXX
Price XXX.XX Yuan
Number XX-XXX
Mechanical Industry Standard Service Network: http://www.JB.ac.cn661_09 /
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