CN201180609Y - Supporting Structure of Guide Bearing of Vertical Hydrogenerator - Google Patents

Abstract

The utility model relates to a supporting structure for a guide bearing of a vertical hydraulic generator, which comprises a guide bearing seat fixedly mounted on a frame, and a guide bearing bush fixedly mounted on the guide bearing seat. The supporting structure is characterized in that the structure further comprises an adjusting wedge block positioned between the guide bearing bush and the guide bearing seat; a support pin is mounted between the guide bearing bush and the adjusting wedge block; a clearance is reserved between the adjusting wedge block and the guide bearing seat; an adjusting wedge plate matched with the adjusting wedge block is mounted in the clearance; the upper end of the adjusting wedge plate is connected with the adjusting wedge block through a screw; and an adjusting nut is assembled on the screw. Therefore, the structure has the advantages of simple structure, and convenient installation and adjustment, and can prolong the service life of the guide bearing of the hydraulic generator.

Description

Supporting Structure of Guide Bearing of Vertical Hydrogenerator

technical field

The utility model belongs to the field of hydraulic generator manufacturing, in particular to a vertical hydraulic generator guide bearing support structure.

Background technique

The installation and support of the guide bearings in the manufacture of hydro-generators are directly related to the working efficiency and service life of the entire water turbine. The existing guide bearings of hydro-generators are supported by guide bearing pads installed on the upper frame and the lower frame. At present, the guide bearing pad generally adopts an adjusting screw installed between the guide bearing seat and the guide bearing pad, and the adjusting screw is set on the drop sleeve, and the installation position of the guide bearing is ensured by adjusting the adjusting screw. When the hydro-generator bears a large radial load, the guide bearing of the above-mentioned structure runs unstable, so the structure has a small load-carrying capacity, is inconvenient to adjust, and the clearance between the bearing pads swings greatly, which leads to the service life of the guide bearing of the hydro-generator. Low.

Contents of the invention

The utility model provides a vertical hydraulic generator guide bearing support structure with simple structure, convenient installation and adjustment, and improved service life of the hydraulic generator guide bearing in order to solve the technical problems in the known technology.

The technical scheme that the utility model takes for solving the technical problem existing in the known technology is:

A support structure for a guide bearing of a vertical hydroelectric generator, comprising a guide bearing seat fixed on a frame and a guide bearing pad on the fixed guide bearing seat, characterized in that it also includes a guide bearing pad and a guide bearing pad The adjustment wedge between the guide bearing bush and the support nail installed between the adjustment wedge, there is a gap between the adjustment wedge and the guide bearing seat, and the adjustment wedge matched with the adjustment wedge is installed in the gap, The upper end of the adjustment wedge is connected to the adjustment wedge through a screw rod, and an adjustment nut is equipped on the screw rod.

The utility model can also adopt the following technical measures:

The end of the support nail near the adjustment wedge is made into a spherical surface.

An insulating pad is also installed between the guide bearing seat and the guide bearing pad, the support nail and the guide bearing pad.

The adjustment wedge is made in an L shape.

A through hole is opened on the lower end plate of the guide bearing housing corresponding to the adjustment wedge.

The advantages and positive effects of the utility model are: since an adjustment wedge is provided between the guide bearing pad and the guide bearing seat, the end face installed between the guide bearing pad and the adjustment wedge is a spherical support nail, so that the adjustment wedge It is in spherical contact with the support nail, and when the generator set is running, the guide bearing bush is allowed to swing in the direction of the guide bearing rotation; there is a gap between the adjustment wedge and the guide bearing seat, and an adjustment wedge matching the adjustment wedge is installed in the gap plate, and the upper end of the adjustment wedge is connected to the adjustment wedge through a screw. By adjusting the adjustment nut on the screw rod, the adjustment wedge plate is pressed against the adjustment wedge, and the adjustment wedge transmits the force to the spherical support nail, so as to achieve the purpose of adjustment; in addition, the guide bearing bush is set between the spherical support nail and the guide bearing seat. There is an insulating pad to cut off the shaft current and effectively prevent the phenomenon of tile burning. Therefore, the above structure is simple, easy to install and adjust, and can increase the service life of the guide bearing of the hydroelectric generator.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1, guide bearing seat; 1-1, through hole; 1-2, lower end plate; 2, guide bearing bush; 3, supporting nail; 4, adjusting nut; 5, screw rod; 6, adjusting wedge plate; 7 , Adjust the wedge; 8, insulation pad.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Fig. 1, since an adjustment wedge 7 is arranged between the guide bearing pad 2 and the guide bearing seat 1, a support nail 3 with a spherical end surface is installed between the guide bearing pad 2 and the adjustment wedge 7, so that the adjustment wedge 7 is in spherical contact with the support nail 3. When the generator set is running, the guide bearing pad 2 is allowed to swing in the direction of the guide bearing rotation; there is a gap between the adjustment wedge 7 and the guide bearing seat 1, and the adjustment wedge is installed in the gap The wedge surface of the block 7 matches the adjusting wedge plate 6, and the adjusting wedge plate 6 is made into an L shape. In order to ensure the formation of the adjusting wedge plate 6, a through hole is opened on the lower end plate 1-2 of the guide bearing seat 1 corresponding to the adjusting wedge plate 6 1-1. The upper end bending part of the adjustment wedge 6 is connected with the adjustment wedge 7 through the screw rod 5 , and the two ends of the adjustment wedge on the screw rod 5 are equipped with adjustment nuts 4 . By adjusting the adjustment nut 4 on the screw rod 5, the adjustment wedge plate 6 presses the adjustment wedge 7, and the adjustment wedge 7 transmits the force to the spherical support nail 3, so as to achieve the purpose of adjustment; in addition, between the guide bearing bush 2 and the spherical support nail 3 and the guide bearing seat 1 are provided with an insulating pad 8 to cut off the axial current and effectively prevent the occurrence of tile burning.

Adjustment method: first turn the nut on the lower end of the adjusting wedge, and then tighten the nut on the upper end of the adjusting wedge. At this time, the nut will drive the adjusting wedge to move down. At the same time, the wedge surface of the adjusting wedge squeezes the wedge of the adjusting wedge. On the surface, the adjustment wedge transmits the force to the guide bearing bush through the supporting nails. When adjusting the proper position, lock the adjustment nuts at both ends of the adjustment wedge to complete the entire adjustment process. Therefore, the above structure is simple, easy to install and adjust, and can improve water quality The service life of the guide bearing of the turbine generator.

Claims (5)

1. A vertical hydraulic generator guide bearing support structure, comprising a guide bearing seat fixed on the frame, a guide bearing pad on the fixed guide bearing seat, characterized in that: it also includes a guide bearing pad and a guide bearing The adjustment wedge between the bearing seats, the support nail installed between the guide bearing bush and the adjustment wedge, there is a gap between the adjustment wedge and the guide bearing seat, and the adjustment wedge matched with the adjustment wedge is installed in the gap The upper end of the adjustment wedge is connected to the adjustment wedge through a screw, and the screw is equipped with an adjustment nut. 2. The supporting structure of the guide bearing of the vertical hydroelectric generator according to claim 1, wherein the supporting nail is made into a spherical surface near the end of the adjusting wedge. 3. The supporting structure of the guide bearing of the vertical hydro-generator according to claim 1, characterized in that: an insulating pad is installed between the guide bearing housing and the guide bearing pad, the support nail and the guide bearing pad. 4. The supporting structure for the guide bearing of the vertical hydroelectric generator according to claim 1, characterized in that: the adjustment wedge is made in an L shape. 5. The supporting structure of the guide bearing of the vertical hydroelectric generator according to claim 1, wherein a through hole is opened on the lower end plate of the guide bearing housing corresponding to the adjustment wedge.

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