Introduction Of Sumitomo Reducer

1.Introduction of Sumitomo

Sumitomo gearboxes are produced by Japan’s Sumitomo Group. Contains various types of reducers, such as Sumitomo large helical gear reducer, Sumitomo planetary gear reducer, Sumitomo helical gear reducer, Sumitomo worm gear reducer, etc.

2.Description of Sumitomo cycloid reducer

The transmission device of Sumitomo cycloid reducer can be divided into three parts: input part, deceleration part and output part.
A double eccentric sleeve with a displacement of 180° is installed on the input shaft, and two roller bearings called swing arms are installed on the eccentric sleeve, which becomes the H mechanism. The central hole of the two cycloidal wheels is the upper swing arm of the eccentric sleeve. The raceway of the bearing is meshed with a set of circularly arranged needle teeth on the needle gear to form an internal meshing reduction mechanism with a tooth difference of one tooth. (In order to reduce friction, in a reducer with a small speed ratio In the needle tooth with a needle tooth sleeve). When the input shaft rotates with the eccentric sleeve, due to the characteristics of the upper tooth profile curve of the cycloidal wheel and the limitation of the needle gear on the needle gear, the motion of the cycloidal wheel becomes a plane motion with both revolution and rotation. When the input shaft rotates forward, the eccentric sleeve also rotates once, and the cycloidal wheel rotates one tooth at the opposite target to obtain deceleration. Then, with the help of the W output mechanism, the low-speed rotation motion of the cycloidal wheel is transmitted to the output shaft through the pin shaft. In order to obtain a lower output speed.

3.Features of Sumitomo cycloid reducer

The key features of Sumitomo cycloid reducer:

3.1 Large reduction ratio and high efficiency

the one-stage transmission reduction ratio is 9~87, the two-stage transmission reduction ratio is 121~5133, the multi-stage mixing can reach tens of thousands, and the pin-tooth meshing system sets rolling friction, and the meshing surface has no meshing surface. Relative sliding, so the first-stage deceleration efficiency reaches 94%.

3.2 Smooth operation and low noise

There are many pairs of teeth that are in contact at the same time during operation, the degree of coincidence is large, the operation is stable, the overload capability is strong, the shock and the noise are low, and the noise of various specifications of models is low.

3.3 Reliable use and long service life

because the critical parts are made of high-carbon alloy steel quenched (HRC58-62), and then finely ground, and the cycloidal tooth meshes with the needle tooth sleeve and is transmitted to the needle tooth to become rolling friction. The friction coefficient is small, so that there is no relative sliding in the meshing area, and the wear is very small, so it is durable.

3.4 Compact structure and small size

Compared with other reducers of the same power, the weight is more than 1/3 smaller. Because of the planetary transmission, the input shaft and output shaft are on the same axis to obtain the smallest possible size.

3.5 High efficiency and energy saving

Because it is a rolling contact mechanism, the efficiency is very high, the level 1 type reaches more than 95%, and the level 2 type also has more than 85%. Compared with the involute gear with the same reduction ratio, the efficiency is greatly improved.

3.6 Rich variety

Cycloidal reducers are widely used in various fields. Outdoor type, safer explosion-proof type, pressure-proof explosion-proof type, dust-proof type, inverter use, with brake, foreign standard applicable specifications, special voltage, heavy radial load applicable type, ceiling or wall mounting type, low temperature and high temperature applicable type Wait, the varieties and specifications are very rich. We believe that these rich and diverse products will certainly meet the various needs of users.

4.Classification

Cycloid series: CYCLO 6000
Gear box series: PARAMAX 9000
Planetary series: DP1000
Cycloid + helical gear / umbrella gear series: HBB / BBB
Hypoid series: HYPONIC
Precision Series: Fine Cyclo
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