Mechanical Industry Standard of the People's Republic of China
JB/T50150-1999
Planetary Cone-disc Continuously Variable Transmission
Product Quality Classification
(Internal Use)
Published on 1999-12-30
IB/T50150-1999
National Bureau of Machinery Industry
Implemented on 2000-06-01
JB/T50150-1999
This standard is a revision of JB/T53084-93 "Product Quality Classification of Planetary Cone-disc Continuously Variable Transmission". During the revision, the original standard was edited, and the main technical content remained unchanged. This standard replaces JB/T53084-93 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Gear Standardization. The responsible drafting unit of this standard: Zhengzhou Machinery Research Institute. The drafting units of this standard include: Zhengzhou Institute of Technology, Beijing Daxing Electric Motor Factory, Wenzhou Speed ​​Machine Factory, and State-owned Xingguang Tool and Die Factory. The main drafters of this standard include: Zhang Yuanguo, Jiang Min, Xu Hongji, Feng Chengzhou, Shi Lixin, Ye Renzhi, and Zeng Guohua. This standard was first issued in 1993.
Standards of the Machinery Industry of the People's Republic of China
Standards of the Machinery Industry of the People's Republic of China
Planetary Cone Disc Continuously Variable Transmission
Product Quality Grading
(Internal Use)
JB/T50150-1999
Replaces JB/T53084-93
This standard specifies the principles and general requirements, quality indicators, and sampling evaluation methods for the quality grading of planetary cone disc continuously variable transmissions (hereinafter referred to as transmissions).
This standard applies to the quality evaluation and grading of transmissions specified in JB/T6950 "Planetary Cone Disc Continuously Variable Transmissions". 2
Cited standards
The clauses contained in the following standards constitute the clauses of this standard by being cited in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T28291987
JB/T6950—1993
Grading principles and general requirements
Grading principles
Periodic inspection counting sampling procedures and sampling tables (applicable to the inspection of production process stability) Planetary cone disc continuously variable transmission
According to the manufacturing quality and performance of the transmission, it is divided into three quality grades: qualified products, first-class products and superior products. 3.1.1 Qualified products
The quality indicators of the transmission fully meet the requirements of JB/T6950, meet the requirements of the product drawings, and the user evaluation meets the use requirements. 3.1.2 The quality indicators of first-class
transmissions have been improved to a certain extent on the basis of JB/T6950 (including quality indicators supplemented as needed), reaching the better level of similar international products, and users have evaluated that the use effect is good. 3.1.3 The quality indicators of superior
transmissions have been greatly improved on the basis of JB/T6950 (including quality indicators supplemented as needed), reaching the contemporary advanced level of similar international products, and users have evaluated that the use effect is equivalent to that of international advanced products. 2 General requirements
3.2.1 The transmission shall be manufactured in accordance with the product drawings and technical documents approved through the prescribed procedures. 3.2.2 The product drawings and technical documents shall be complete. 3.2.3 The material, hardness, working surface roughness and dimensional accuracy of the main parts of the transmission shall meet the requirements of the design drawings, and shall be accompanied by original inspection records.
Quality index requirements
Carrying capacity
Approved by the State Bureau of Machinery Industry on December 30, 1999 and implemented on June 1, 2000
JB/T50150-1999
The carrying capacity of the transmission shall comply with the provisions of JB/T6950. Noise
The transmission noise test shall be carried out in accordance with the provisions of 5.3.2.2 of JB/T6950-1993. The no-load noise limit value shall not exceed the value specified in Table 1. Table 1
Frame number
Quality grade
Qualified product
Sound power level
Superior product
001-007
Noise sound power levelbzxz.net
(22-040
The test of temperature rise of transmission shall be determined by calculation according to 5.3.4 of JB/T6950-1993. The temperature rise limit value shall not exceed the values ​​specified in Table 2 and
Table 3.
Frame number
Quality grade
Frame No.
Quality grade
001-015
Temperature rise when equipped with two-pole motor
(22-0-40
Temperature rise when equipped with four-pole, six-pole and eight-pole motors001-015
(22-0-40
When the transmission power is greater than or equal to 5.5kW, a heat sink is allowed. Sealing
150-220
075-220
075-220
JB/T 501501999
The sealing performance of the transmission shall comply with the provisions of 5.3.7 of JB/T6950-1993. Slip ratio
The slip ratio of the transmission shall be calculated and determined according to 5.3.3.3 of JB/T6950-1993. The slip ratio shall not exceed the value specified in Table 4.
Table 4 Slip ratio
Output speed
Quality grade
Matching two-pole motor
Matching four-pole motor
Matching six-pole motor
Matching eight-pole motor
Qualified products
Superior products
The efficiency of the transmission shall be calculated and determined according to 5.3.3.4 of JB/T6950-1993, and the efficiency value shall not be lower than the value specified in Table 5.
5 Efficiency||t t||Output speed
Quality grade
Matching two-pole motor
Matching four-pole motor
Matching six-pole motor
Matching eight-pole motor
Qualified products
Superior products
Cleanliness
The cleanliness test of the transmission shall be carried out in accordance with the provisions of 5.3.8 in JB/T6950-1993. The impurity content G shall not exceed the value specified in Table 6. Table 6
Impurity content G
Machine frame number
Quality grade
Superior products
Appearance quality
001~220
The surface of the transmission is painted with oil-resistant paint, and the paint should be evenly coated and smooth (without paint leakage, shedding, flow marks and bubbles). There is 1 page left to read. Do you want to continue reading? This document was shared by xsp12123 on 2019-04-051800
JB/T 501501999
The appearance of the transmission is flat and smooth, and no defects such as rust and bruises are allowed. , Marking, Packaging
The marking and packaging of the transmission shall comply with the provisions of 7.1 and 7.2 of JB/T6950-1993. 5
Sampling evaluation method
The sampling evaluation method shall comply with the provisions of GB/T2829, and the classification of unqualified shall comply with the provisions of Table 7. Table 7 Non-conforming classification
Non-conforming category
Non-conforming quality level RQL
Non-conforming items
Load-bearing capacity
Oil pool temperature rise
Slip ratio
Cleanliness
Sealing
Non-conforming category
Non-conforming items
Quality of main parts
Appearance quality
Marking, packaging
User evaluation, after-sales service
The quality of transmission products is divided into three quality grades: qualified products, first-class products and superior products. The non-conforming quality level RQL=40. 3 Sampling plan
5.3.1 Types of sampling plans and inspection levels This standard stipulates the use of the single sampling plan in GB/T2829 and the use of discrimination level IⅡI. 5.3.2 The judgment array (Ac, Re) adopts (1, 2), and the sample n shall comply with the provisions of (B/T2829. 5.4 Implementation and evaluation of sampling inspection
5.4.1 Samples shall be randomly selected from the factory finished product warehouse or assembly production line, or from users. The samples shall be products produced by the factory within the last six months.
5.4.2 According to the sampling plan specified in 5.3.1, all samples shall be inspected. When the number of unqualified samples is less than or equal to the qualified judgment number Ac, it shall be evaluated as qualified; when it is greater than or equal to the unqualified judgment number Re, it shall be evaluated as unqualified. If all categories are evaluated as qualified, they shall be finally evaluated as qualified. When one category is unqualified, it shall be finally evaluated as unqualified. 5.4.3 When assessing the quality grade of the transmission, according to the sampling plan and assessment criteria, if one category reaches a higher grade and the other reaches a
lower grade, the lower grade should be assessed in the final assessment.
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