GB/T 3228-2022 in English
VALIDAssembly tools for screws and nuts—Dimensions of machine-operated “impact” square drive sockets
- Issued on:2022-12-30
- Implemented on:2023-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
| Standard No: | GB/T 3228-2022 |
| Document status: | VALID |
| Title in English: | Assembly tools for screws and nuts—Dimensions of machine-operated “impact” square drive sockets |
| Title in Chinese: | 螺栓螺母用装配工具 冲击式机动四方传动套筒的尺寸 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2022-12-30 |
| Implemented on: | 2023-07-01 |
| Superseding: |
GB/T 3228-2009 Assembly tools for screws and nuts-machine-operated square drive sockets (“impact”) - Dimensions
|
| ICS Classification: | 25.140.10-Pneumatic tools |
| Chinese Classification: | J48-Pneumatic tool |
| Professional Classification: | GB-National Standard |
| Related Keywords: | machine-operated “ impact ” square drive sockets introduction
impact-type motorized square drive sockets impact-type motorized square transmission sleeve square transmission sleeve assembly tools |
| Related Topics: | Quartet
four packages GBT3228 GB/T 3228-2000 GB/T 3228-2009 gb/t 3228 |
《GB/T 3228-2022螺栓螺母用装配工具 冲击式机动四方传动套筒的尺寸》由TC173（全国凿岩机械与气动工具标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
1. Background and significance of the standard
GB/T3228-2022/ISO27252:2017 specifies the dimensional requirements for impact-type motorized square drive sockets, which are mainly applicable to bolt and nut assembly tools. This standard replaces the previous GB/T3228-2009 and is consistent with the international standard ISO27252.
2. Analysis of Technological Evolution
Compared with the old version of the standard, the main technical changes of the new version of the standard include:
- Added the dimension requirements of Dmax and part s
- Changed the dimension parameter of tmin
- Deleted the requirement of the socket with a square hole of 16mm
- Adjusted the tolerance sequence of the width across flats of hexagonal holes
3. Comparison of standard frameworks (table)
| Technical parameters | Old version requirements | New version requirements |
|---|---|---|
| Dmax (maximum thread diameter) | Based on ISO4014 and ISO272 standards | Added the calculation rule of Dmax×1.05 |
| tmin (minimum size parameter) | mmax+0.1 | mmax+0.1 remains consistent |
| Tolerance range | ±2.5% | Optimize to ±1.5-2.5% |
4. Implementation Suggestions
Case analysis: When applying the new version of the standard, a machinery manufacturing enterprise improved its assembly efficiency by adopting the impact-type motorized square transmission sleeve. It is recommended that in actual operation:
- Select the sleeve size strictly according to the table parameters
- Pay attention to the calculation rules of Dmax and tmin
- Calibrate the tool regularly to ensure that the tolerance meets the requirements
5. Conclusion
The release of GB/T3228-2022/ISO27252:2017 marks a new development in the technology of impact motorized square transmission sleeve. Enterprises should fully understand the standard requirements to ensure product quality and assembly efficiency.
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