Single cycloidal gear reducer

Abstract

The invention discloses a single cycloidal gear reducer and relates to the technical field of mechanical equipment. A cylindrical roller bearing I is mounted on an eccentric excircle of the middle of an input crankshaft; two ends of the input crankshaft are supported on an input flange and an output flange respectively through cylindrical roller bearings II; rotary framework oil seals are mounted on two outer sides of the input flange and the output flange; the cylindrical roller bearing I is sleeved with a cycloidal gear; the outer tooth surface of the cycloidal gear is meshed with tooth needles mounted in a casing; two bosses are arranged at one end of the cycloidal gear and are connected into two holes in a four-hole transmission piece through cylindrical rollers, and the other two holes of the four-hole transmission piece are further connected with the output flange through the cylindrical rollers; the output flange is sleeved with a cylindrical crossed roller, and the cylindrical crossed roller is sleeved with a bearing gland. The single cycloidal gear reducer is only provided with one cycloidal gear, is driven by the four-hole transmission piece, has high torque and a few parts and is simple in structure, low in manufacturing cost and very convenient to mount and use.

Description

Technical field: [0001] The invention relates to a cycloid gear reducer and belongs to the technical field of mechanical equipment. Background technique: [0002] Cycloidal gear reducers are mainly used in many fields such as robots, CNC machine tools, medical equipment, and national defense. The common requirements of such products are high precision, large transmission ratio, small size, light weight, large axial and radial load capacity, large torque and overturning moment. At present, the Asian market is mainly composed of Japan's HarmonicDrive (Hammer Naco) harmonic reducer and Nabtesco's RV cycloidal gear reducer. These two reducers occupy the majority of the above application fields. part of the market. The development of this type of reducer in our country is relatively late. In addition to the harmonic reducer, there is a lack of research on the new cycloidal gear reducer. Due to structural reasons, the load and torque of the harmonic reducer are relatively small...

AI Technical Summary

Problems solved by technology

Due to structural reasons, the load and torque of the harmonic reducer are relatively small, and the impact resistance is poor, so it can only be used in light load occasions; the RV reducer is a two-stage transmission form, so it is large in size and cannot be made into a small-sized reducer. And the production cost is higher

[0003] At present, the cycloidal gear reducers of the same type in the world use two or more cycloidal gear structures and two-stage transmission. This structure is not only complicated, but also cumbersome to install, so it is very inconvenient to use.

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