Motor-drive industrial robot

Details Motor-drive industrial robot Motor-drive industrial robot

1989-10-19

1991-11-12

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 90, 310112, 74479, 227 3, 901 23, 901 49, H02K 1600

Patent

active

050650629

ABSTRACT:
A motor-drive industrial robot which can be used as a painting robot is mainly constructed by a direct-drive motor, a fixed portion such as a base, and a movable portion such as a rotary table, an arm etc. The direct-drive motor for driving the movable portion is constructed by a rotor and a stator. Preferably, the stator is attached to the fixed portion, while the rotor is attached to the movable portion. In order to avoid the generation of sparks in the flammable atmosphere, this robot is designed as the explosion-proof construction, so that the protective gas ie enclosed within the direct-drive motor. This protective gas is supplied into an annular space formed between the rotor and stator via a through hole formed through the stator or rotor. In addition, this annular space is sealed such that the protective gas is not leaked from the direct-drive motor.

REFERENCES:
patent: 4651591 (1987-03-01), Wurst
patent: 4771199 (1988-09-01), Johannes
patent: 4922782 (1990-05-01), Kawai

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