What are the advantages of the pin output structure of BWY12-59-2.2KW cycloidal pinwheel reducer?

The pin-type output structure of the BWY12-59-2.2KW cycloidal pinwheel reducer is the core force transmission component of the cycloidal transmission. It is suitable for medium-load, medium-low-speed working conditions of 2.2kW power, 59 speed ratio, and No. 12 machine base. Its structural design fits the motion characteristics of the cycloidal pinwheel transmission. Compared with the gear-type direct-connected output, it has significant advantages in torque transmission, operating stability, and working condition adaptability. The specific advantages are as follows:

1. Multi-pin load sharing, strong impact resistance : The output pins distributed evenly around the circumference (10-12 pins are conventionally configured for No. 12 machine base) cooperate with the pin holes to transmit force, dispersing the torque of the cycloidal wheel to multiple pins to bear simultaneously, avoiding stress concentration at a single point. It can effectively buffer the impact load caused by equipment starting, braking and load fluctuations. It is suitable for transportation, mixing, lifting and other working conditions with instantaneous impact, and meets the actual use needs of 2.2KW medium-load equipment.

2. High transmission efficiency and low torque transmission loss : the pin-type output is a surface contact fit, and the fit gap is precisely controlled. The low-speed rotational motion of the cycloidal wheel can be directly transmitted to the output shaft through the pin shaft, without the tooth surface friction loss of additional gear meshing. The overall transmission efficiency of the cycloidal pinwheel reducer can reach more than 90%. The pin-type output structure is the core to ensure this efficiency. It can still reduce power loss at a large speed ratio of 59 and improve the energy saving of the equipment.

3. Good structural rigidity and stable transmission accuracy : The pin and pin hole, the output shaft and the cycloidal wheel output mechanism are all coaxially precision assembled, with strict tolerance control (the gap between the pin and the hole is 0.01-0.03mm), and the output shaft is a solid stepped shaft structure with strong overall rigidity. There is no obvious radial deflection and axial movement during operation, which can ensure the uniformity of the output speed, reduce vibration and noise, and is suitable for transmission scenarios that require smooth operation.

4. Excellent load-carrying capacity adaptability, suitable for the working conditions of the machine base : The pin-type output structure of No. 12 machine base has been designed after mechanical school verification. The pin material is mostly 40Cr quenched and tempered + surface quenching, and the output shaft is 45# steel / 40Cr quenched and tempered. The multi-pin load-sharing structure greatly increases the rated static torque and rated dynamic torque of the output end, and can fully match the 2.2KW power, 59 The torque amplification requirement under the speed ratio, long-term full load operation without obvious deformation and wear, meets the requirements of medium-load continuous operation.

5. Uniform wear and long service life : The combined motion of revolution and rotation of the cycloidal wheel causes uniform sliding friction at the contact part between the pin and the pin hole, without local fixed point wear, and the mating surface is finely machined (roughness Ra ≤ 1.6 μm) and lubricated with gear oil inside the reducer, effectively reducing the wear rate; at the same time, the pin can be disassembled and replaced separately, without the need to replace the output shaft or cycloidal wheel as a whole, reducing the replacement cost of wearing parts and extending the service life of the core components of the entire machine.

6. Axial compensation capability, adaptable to assembly errors : The pin-type output structure has small axial and radial compensation gaps, which can absorb installation errors during the assembly process of the reducer (such as small deviations in coaxiality of the base, flange, and bearings). It can also buffer the thermal expansion and contraction of components due to temperature changes during equipment operation, avoid jamming and unbalanced loading caused by assembly errors, reduce the accuracy requirements of installation and debugging, and improve the convenience of on-site assembly.