GB/T 32798-2016 in English
VALIDXP type planetary gear reducer
- Issued on:2016-08-29
- Implemented on:2017-03-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 32798-2016XP型行星齿轮减速器》由604-1（中国机械工业联合会）归口，主管部门为中国机械工业联合会。
Introduction
1. Standard Overview and Background
GB/T32798-2016 "XP-type Planetary Gear Reducer" standard was officially implemented on March 1, 2017. The standard was proposed by the China Machinery Industry Federation and managed by the National Technical Committee for Metallurgical Equipment Standardization. The drafting units of the standard include China Heavy Machinery Research Institute Co., Ltd., Ningbo Dagang Yining Hydraulic Co., Ltd. and Zhejiang Tongli Heavy Gear Co., Ltd.
This standard mainly provides detailed regulations on the basic parameters, model markings, dimensions and technical requirements of XP-type planetary gear reducers. It is suitable for transmission scenarios with high speed, high precision, small size and large load-bearing capacity, especially for wheel-side transmission of wheeled, tracked vehicles and rail vehicles.
2. Comparative analysis of standard frameworks
| Standard dimensions | GB/T32798—2016 | Comparison with international standards |
|---|---|---|
| Basic parameter range | The nominal transmission ratio range of XP 2 type is 25-63, and the nominal transmission ratio range of XP 3 type is 71-224. | The basic parameter range is consistent with ISO standards (such as ISO 12647). |
| Gear module | The module of the reducer gear should comply with the provisions of GB/T1357 to ensure gear strength and transmission efficiency. | It is consistent with the international standards on gear accuracy (such as ISO 6336). |
| Material and heat treatment | The sun gear and planetary gear are carburized, quenched and tempered, and the internal gear is nitrided to ensure high load capacity and wear resistance. | It complies with the international standards on the use of high-temperature alloys and high-strength steel. |
3. Technical requirements and implementation suggestions
Case study: XP 301 reducer selection analysis
Take the XP 301 reducer as an example, its maximum output torque is 17kN·m and the nominal transmission ratio is 25. According to the selection method in Appendix B, when the actual working torque T20 is 10kN·m, the selection torque T21=K*T20=1.3*10=13kN·m. Therefore, the reducer model with a rated output torque of 17kN·m should be selected to ensure that its maximum working torque does not exceed the T2max value in Table A.1.
Key points: Under continuous working conditions, the heat dissipation capacity needs to be verified; under strong impact loads, it is recommended to use high-temperature resistant synthetic oil or a circulating lubrication system.
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