CN202851240U - Thrust guide combined bearing structure of hydro-generator - Google Patents

Abstract

The utility model relates to a thrust guide combined bearing structure of a hydro-generator. The thrust guide combined bearing structure of the hydro-generator comprises a flash oil ring, a thrust block, an inner oil retainer, a breather pipe, an outer oil retainer and a guide bearing oil inlet inclined hole. The thrust guide combined bearing structure of the hydro-generator is characterized in that a step is arranged on the thrust block, the inner oil retainer and the outer oil retainer are respectively covered on the outer circles of an inner step body and an outer step body of the thrust block, the breather pipe is communicated with a space formed by the inner oil container and the outer oil container, and the guide bearing oil inlet inclined hole is formed in the thrust block. The thrust guide combined bearing structure of the hydro-generator has the advantages that direct contact between lubricating oil and a rotating component is reduced, thereby reducing stirring to the lubricating oil and reducing stirring loss.

Description

The thrust of hydraulic turbine generator is led combined bearing structure

Technical field

The utility model belongs to the hydraulic turbine generator equipment technical field, relates to a kind of employing and is processed with the inside and outside double-deck gear oil pipe of spiral fluted and encases thrust collar stirs lubricant oil to reduce thrust collar structure.

Background technique

Whole thrust collar all is directly to contact with lubricant oil in traditional thrust bearing, the thrust collar that rotates when unit operation ceaselessly stirs lubricant oil, produce and stir loss, particularly in high rotating speed unit, the thrust collar rotational speed is faster, the stirring loss that produces is larger, therefore needs the oil cooler size of cooling usefulness also larger.

The model utility content

In order to overcome the above-mentioned shortcoming in the conventional construction, the thrust that the utility model provides a kind of minimizing lubricant oil rational in infrastructure to stir is led combined bearing structure.

The technological scheme that its technical problem that solves the utility model adopts is:

A kind of thrust of hydraulic turbine generator is led combined bearing structure, comprises dodging oil ring, thrust collar, interior flinger ring, breathing pipe, outer flinger ring, guide bearing oil-feed inclined hole; It is characterized in that: one grade of step is set on the thrust collar, and interior flinger ring and outer flinger ring wrap in respectively on the inside and outside ladder cylindrical on the thrust collar, and breathing pipe is communicated with the space that interior flinger ring and outer flinger ring form, and guide bearing oil-feed inclined hole is set on the thrust collar.

Described hydraulic turbine generator reduces the thrust that lubricant oil stirs and leads combined bearing structure, is processed with the left hand screw groove at the internal diameter direction of interior flinger ring; The internal diameter direction of flinger ring is processed with right spiral outside.

Described hydraulic turbine generator reduces the thrust of lubricant oil stirring and leads combined bearing structure, dodges during installation to guarantee the about 1.5 ~ 2mm in gap between oil ring and the thrust collar.

The utility model advantage is to reduce lubricant oil and rotary component directly contacts and then reduces stirring to lubricant oil, reduces and stirs loss.

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

See also shown in Figure 1, the structural representation of a kind of hydraulic generator thrust bearing (containing guide bearing), this structure reduces the direct effect that contacts to reach the invalid stirring of minimizing lubricant oil of lubricant oil and rotary component thrust collar (2) during mainly by unit operation.

During unit operation, because of the effect of centrifugal force, the lubricant oil in the B zone can by the left hand screw groove on the interior flinger ring (3) up take out with outer flinger ring (5) on right spiral down take out, air then enters the B zone with equilibrium air pressure by blowdown pipe (4).When unit normally moved, the B zone had not had lubricant oil.

During unit operation, because of the effect of centrifugal force, the gap of dodging between oil ring (1) and the thrust collar (2) produces certain pumping action, and lubricant oil is detached the a-quadrant.

During unit operation, lubricant oil is pumped into the guide bearing center with lubricated guide bearing tiling by guide bearing oil-feed inclined hole (6).

Claims (2)

1. the thrust of a hydraulic turbine generator is led combined bearing structure, comprises dodging oil ring (1), thrust collar (2), interior flinger ring (3), breathing pipe (4), outer flinger ring (5), guide bearing oil-feed inclined hole (6); It is characterized in that: one grade of step is set on the thrust collar (2), interior flinger ring (3) and outer flinger ring (5) wrap in respectively on the inside and outside ladder cylindrical on the thrust collar (2), breathing pipe (4) is communicated with the space that interior flinger ring (3) and outer flinger ring (5) form, and guide bearing oil-feed inclined hole (6) is set on the thrust collar (2).

2. the thrust of hydraulic turbine generator as claimed in claim 1 is led combined bearing structure, it is characterized in that: the internal diameter direction at interior flinger ring (3) is processed with the left hand screw groove; The internal diameter direction of flinger ring (5) is processed with right spiral outside.

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