| 摘要 |
FIELD: testing of machine parts. ^ SUBSTANCE: bench comprises shaft with is provided with driving pulse turbine and is mounted in the housing provided with passages for supplying fluid to the turbine wheel and discharging it from the turbine and bearing to be tested provided with the coating to be tested. The bearing is mounted in the race mounted on the shaft of the pulse turbine and on flexible members. The bench is provided with loading device, temperature sensor, and pickup for measuring torque. The reference bearing is set in the race that is suspended inside the housing by means of flexible members. The driving pulse turbine is mounted on the shaft in its central part. The shaft is set on two bearing that receive the reference and tested bearings symmetrically to the pulse turbine. The loading device is connected to the bottom section of the races of the reference and tested bearings to provide the same load on both of the bearings. The separating heat screen is interposed between the turbine and tested bearing. The reference bearing may be additionally provided with heater and temperature sensor, and it may be provided with a tested coating. The structures of the tested and reference bearing may be the same, or different. ^ EFFECT: enhanced reliability and simplified structure. ^ 4 cl, 3 dwg |
