GB/T 34786-2017 in English
VALIDGrain and oil machinery-Toothed cracking roll
- Issued on:2017-11-01
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Within 1 day
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《GB/T 34786-2017粮油机械 齿辊式破碎机》由TC270（全国粮油标准化技术委员会）归口，TC270SC4（全国粮油标准化技术委员会粮油机械分会）执行，主管部门为国家粮食和物资储备局。
Introduction
In-depth interpretation of GB/T 34786—2017 Grain and Oil Machinery Tooth Roller Crusher
Background and significance of standard formulation
GB/T 34786—2017 "Grain and Oil Machinery Tooth Roller Crusher" national standard was proposed by the State Grain Administration, aiming to standardize the terminology, technical requirements and test methods of tooth roll crushers to ensure equipment performance and safety.
Background of standard formulation
- Adapt to the needs of the rapid development of grain and oil processing industry
- Unify industry technical specifications
- Improve product quality and safety
Working principle and classification
Tooth Roller Crusher uses shearing and extrusion to crush oil through the differential motion of a pair of tooth rolls. According to the different pressure control methods, it is divided into hydraulic tooth roll crusher and spring tooth roll crusher.
| Type | Features | Application scenarios |
|---|---|---|
| Hydraulic tooth roll crusher | Adopts hydraulic device to control pressure, and crushes evenly | Suitable for large-scale industrial production |
| Spring tooth roll crusher | Uses spring to adjust pressure, simple structure | Suitable for small and medium-sized processing |
Model and basic parameters comparison
Hydraulic double tooth roll crusher parameter comparison
| Model | Output(t/24h) | Main motor power(kW) | Speed(r/min) | Crushing size |
|---|---|---|---|---|
| YPSY2–40×150 | 100~150 | 7.5 | 480~617 | 1/4~1/8 |
| YPSY2–40×150 | 350~400 | 15 | 363～490 | 1/4~1/8 |
Technical requirements and safety specifications
Mechanical properties
- The whole machine operates normally, without abnormal sound and vibration (7.2.1)
- The noise sound pressure level does not exceed 80 dB (7.2.2)
- The roller spacing adjustment device is reliably positioned (7.2.4)
Safety requirements
- Equipped with safety warning signs (7.4.1)
- Electrical equipment complies with the provisions of GB5226.1, and the motor is reliably grounded (7.4.2)
- Safety protection devices are installed on transmission belts and other parts (7.4.3)
Implementation suggestions and precautions
Equipment selection suggestions
Choose a suitable type of crusher according to the processing scale and raw material type. For large-scale production, it is recommended to use hydraulic toothed roller crusher, and for small and medium-sized production, spring toothed roller crusher can be selected.
Daily maintenance suggestions
- Regularly check the tightness and lubrication of each component
- Monitor the bearing temperature rise to ensure that it does not exceed 75°C
- Keep the equipment clean to prevent material blockage
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