Supporting device for guide bearing shoe seat of vertical water-turbine generator set

Abstract

The invention discloses a supporting device for a guide bearing shoe seat of a vertical water-turbine generator set. The supporting device comprises a sleeve, a supporting column screw rod and a tray,wherein the sleeve is fixedly connected with an oil tank bottom plate, the lower portion of the supporting column screw rod is in threaded connection with the sleeve, the upper portion of the supporting column screw rod is matched with the tray, and the tray is further abutted against the shoe seat. According to the supporting device, the rigidity of a shoe seat ring plate is improved, so that abearing shoe is not in an inclined state, the gap measurement and adjustment accuracy of the guide bearing shoe in the maintenance process of the set is improved, and the stability of a gap of the guide bearing shoe during operation is ensured.

Description

technical field [0001] The embodiment of the present invention relates to an accessory of a hydroelectric generator set, in particular, to a support device for a guide bearing pad seat of a vertical hydroelectric generator set. Background technique [0002] Such as figure 1 As shown, the existing vertical hydro-generator set guide bearing is mainly composed of tile seat 1, main shaft 2, oil tank cover 3, frame 4, shaft collar 5, bearing bush 6, anti-weight block 7, wedge plate 8, oil tank bottom plate 9 and so on. During the operation of the vertical hydro-generator set, the guide bearing bears the radial mechanical unbalanced force and electromagnetic unbalanced force of the rotating part of the set, so as to maintain the stable operation of the main shaft of the set within the range of the bearing clearance. However, due to design reasons, the inner and outer diameters of the bearing pad of the guide bearing are large in size and low in rigidity, similar to a cantilever ...

AI Technical Summary

Problems solved by technology

However, due to design reasons, the inner and outer diameters of the bearing pad of the guide bearing are large in size and low in rigidity, similar to a cantilever beam structure, and there is no support under the bearing pad. When the guide bearing bears the weight of the bearing pad, the deflection increases. As a result, the pad seat is easily deformed during operation, and the bearing pad is in a tilted state, which reduces the accuracy of the gap measurement and adjustment of the bearing pad during unit maintenance.

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