Issue 106: some features of Hengyu Guoqiang cycloid pinwheel reducer
Time：2018-12-06 | Source：恒宇国强 | Browse：1341945
All the transmission devices of cycloid pin gear reducer can be divided into three parts: input part, deceleration part and output part.
A 180 ° offset double eccentric sleeve is installed on the input shaft, and two roller bearings are installed on the eccentric sleeve to form an H mechanism. The center holes of the two cycloid gears are the raceways of the arm bearing on the eccentric sleeve, and the cycloid gears are meshed with a group of ring-shaped needle gears on the needle gear to form an internal meshing reduction mechanism with small tooth difference, The needle teeth are provided with a needle tooth sleeve).
When the input shaft rotates with the eccentric sleeve for one circle, because of the characteristics of the tooth profile curve on the cycloid gear and its limitation by the needle teeth on the needle gear, the motion of the cycloid gear becomes a plane motion with revolution and rotation. When the input shaft rotates forward for one circle, the eccentric sleeve also rotates for one circle, and the cycloid gear rotates a tooth difference in the opposite direction, so as to obtain deceleration, The low-speed rotation of cycloid wheel is transmitted to the output shaft through the pin shaft, so as to obtain a lower output speed.
Here are some features of cycloid reducer
1. Cycloid pin gear reducer / cycloid reducer is a relatively new type of transmission mechanism. Its unique stable structure can replace ordinary cylindrical gear reducer and worm gear reducer in many cases, because cycloid pin gear reducer has many advantages.
2. Large transmission ratio: the transmission ratio of cycloid pin gear reducer is 1:7 to 1:87 at the first reduction; The rotation ratio of two-stage deceleration is 121-7569. Users can also choose three-stage deceleration with larger deceleration ratio according to their actual needs.
3. High transmission efficiency: cycloid pin gear reducer as the meshing part of the machine adopts rolling meshing, the general efficiency can reach more than 90%.
4. Convenient maintenance (lubrication method): use special high-grade grease below ﹥ 6125 which is not required for maintenance.
5. Small size and light weight: cycloidal pin gear reducer adopts the planetary transmission principle, the input shaft and output shaft are on the same axis, and it is directly connected with the motor. Therefore, cycloidal pin gear reducer itself has the characteristics of compact structure, small size and light weight. The volume can be reduced by 1 / 2 ~ 2 / 3 when it is used to replace the two-stage ordinary cylindrical gear reducer; The weight is reduced about 1 / 3 to 1 / 2.
6. Easy disassembly and repair: due to the reasonable structure design, simple disassembly and repair, less parts and simple lubrication of cycloid pin gear reducer.
7. Reliable use, less faults and long service life: the main transmission meshing parts are made of high carbon chromium bearing steel with good wear resistance and fatigue resistance, and high strength is obtained after quenching (HRC58-62), so the cycloid pin gear reducer has good mechanical performance and wear resistance; The running contact adopts rolling friction, basically no wear, so it has less faults and long service life. Its service life is 2-3 times longer than that of ordinary gear reducer.
8. Smooth and stable operation, low noise: the cycloid pin teeth have more meshing teeth, large overlap coefficient and the mechanism of smooth parts, so that the vibration and noise are limited to a minimum.
Therefore, cycloid pin gear reducer has the advantages and characteristics that these other types of reducer can not replace.
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