Robot Joint Arm Gearboxes RV Cycloidal Drive Pinwheel Planetary Cyclo Gear Reducer

Its transmission process as follows: input shaft equipped with a 180-degree dislocation of the double eccentric sets, replaced with two eccentric turn as a roller bearing arm, the formation of H-, two cycloid round hole at the center shall uplink Eccentric Roller Bearings arm, which cycloidal gear needle round and meshing phase, comprising a difference of the teeth meshing with the gearbox.

Structure Principle:

1-All transmission device of epicyclic cycloidal pinwheel speed reducer can be divided into three parts: input part, slowing down part and output part.

2-the input shaft is installed a dislocation 180° double eccentric locking collar that is installed two roller bearings. It forms H mechanism. the central hole of two cycloidal wheels is just the roller table of tumbler bearing at eccentric locking collar. Meanwhile it is meshed with one group of pin wheel arranged in ring shape at cycloidal wheel and pin wheel in order to consist of less differential gear inner meshing speed-down mechanism (in order to reduce friction, the pin tooth has sleeve of pin tooth at speed reducer with small speed ratio).

3-When input shaft brings eccentric locking collar to rotate one cycle, because of the characteristic of tooth profile curve at cycloidal wheel as well as it is limited by up pin tooth of pin wheel, the motion of cycloidal wheel becomes a plane motion with revolution and rotation. When the input shaft rotates clockwise one cycle, the eccentric locking collar rotates one cycle too. the cycloidal wheel will rotates one differential gear at opposite direction and the speed-down can be got. by means of W output mechanism, the low velocity rotation motion of cycloidal wheel will transmit to output shaft through axis pin and lower output velocity can be got.

Cycloidal Gear Reducer Features

1. High speed ratio and efficiency

Single stage transmission can reach to 1:87 of speed-down ratio and the efficiency is more than 90%. If use multi-speed drive the speed-down ratio is bigger.

2. Compact structure and small size

Being adapted epicyclic transmission principle,the input & output shaft are at same axis center,it is compact.

3. Smooth and stable run and low noise

the cycloidal pinwheel has more meshed teeth, the overlapping coefficient id big and the machine part is stable, the vibration and noise is limited at the minimum content.

4. Reliable in operation and long life

Because the main parts are made of bearing steel through quenching treatment(HRC58-62), it got high strength. Meanwhile the transmission contact of part adapts rolling friction, so it is durable and long life.

5. Strong overload capacity, resistant to impact, small moment of inertia.

It is used for the occasion of frequently starting and positive and negative rotary.

Because of reasonable in design, convenient in maintenance, easy to disassemble and assemble, the minimum amount of part and simple lubrication, the reducers are trusted by our customers deeply.