BED FOR TESTING DYNAMICS OF SCRAPERS Russian patent published in 1994 - IPC

FIELD: measurement technology. SUBSTANCE: bed for testing dynamics of scraper has internal combustion engine, basic and additional gear-boxes, gimbal gear, flywheel, the second gimbal gear, electric brake provided with two exciting winding, torque generator mounted onto the second gimbal gear, scraper diesel fuel pump rack movement transducer, registrar, autotransformer connected in series with transformer, rectifier and smooth filter, which has outputs connected to the first exciting winding and to registrar. Bed also has recording registrar, which has three inputs. Two inputs of the recording registrar are connected to torque generator and to fuel pump rack movement transducer. DC controlled source is connected to the second exciting winding and to the third input of recording registrar through switch. Additional registrar is connected to output of DC controlled source. EFFECT: improved precision of measurement. 3 dwg