2. Suggestions on adapting loom working conditions
The transmission requirements of looms vary depending on the machine model and process, and need to be matched accordingly:
1. Traditional shuttle loom/rapier loom: When this type of machine is working, the shuttle or rapier head moves back and forth frequently, the frequency of starting and stopping is high, and there are obvious impact loads (such as shuttle impact, sudden changes in weft tension). The multi-tooth meshing structure of the cycloidal pinwheel reducer can effectively absorb impact and has stronger overload resistance, making it suitable for such intermittent and impact-type working conditions.
2. Air jet/water jet loom: This type of high-speed loom usually operates continuously for 24 hours and has extremely high requirements for transmission efficiency and stability. Hardened helical gear reducers are more efficient (more than 95%) and can significantly reduce energy consumption during long-term operation. Hardened gears have strong wear resistance and are more suitable for continuous heavy-load scenarios.
3. Compact loom with limited space: If the equipment installation space is limited, the compact structure of the cycloid reducer (the volume is only 1/3 of the gear reducer with the same power) has more advantages and can save equipment layout space.
4. Large speed ratio demand scenario: If the loom requires a large reduction ratio (such as a low-speed and high-torque winding mechanism), the cycloidal pinwheel can achieve a reduction ratio of 87:1 in a single stage, without the need for multi-stage combinations, simplifying the transmission chain.
3. Selection and pitfall avoidance tips for maintenance
1. Torque check: When the impact load of the loom is obvious, a safety factor of 1.8~3.0 must be reserved. The peak torque should be controlled within 1.5 times of the allowable torque of the reducer to avoid overload damage.
2. Installation accuracy: Cycloidal pinwheel reducers have high installation coaxiality requirements. The deviation between the input shaft and the motor output shaft must be controlled within the allowable range. It is recommended to use an elastic coupling; the lubricating oil level must be confirmed during vertical installation to avoid bearing wear caused by insufficient lubrication.
3. Lubrication and maintenance: The lubricating oil needs to be replaced after the first 100 hours of operation, and then every 2500~4000 working hours or every 6 months; wet and dusty textile workshops need to choose IP54 or above protection level to avoid dust intrusion causing gear wear.
4. Upgrade alternatives: If the existing cycloidal pinwheel reducer frequently fails, consider upgrading it with a size-compatible hardened helical gear (such as the RWD series instead of the BWD series). The installation dimensions are the same, the torque is increased by more than 15%, and the noise and temperature rise are lower. It can be directly replaced without modifying the equipment.
4. Summary
Give priority to cycloidal needle wheels: traditional looms with frequent starts and stops, forward and reverse rotation, large impact loads, or scenarios where space is limited and a large speed ratio is required.
Preference is given to hardened helical gears: high-speed looms that operate continuously for 24 hours, or scenarios that are sensitive to transmission efficiency and long-term operating costs.
In practice, it is necessary to make a comprehensive judgment based on the specific power, speed, torque and installation method of the loom. It is recommended to give priority to manufacturers with textile machinery supporting cases to ensure the adaptability of the product to working conditions.
