CN217776883U - Guide vane spindle nose mounting tool - Google Patents

Abstract

The utility model discloses a guide vane shaft head installation tool, which belongs to the field of hydroelectric equipment maintenance tools. It includes a support plate, several threaded rods, several leveling nuts and several hollow jacks. There are several through holes on the support plate, and several threaded rods are evenly distributed around the center of the support plate. The central axes of the threaded rods are parallel to each other. One end of several threaded rods Through the through hole, the other end passes through the fine-pitch screw hole of the guide vane shaft head and is detachably connected with the outer guide ring; each threaded rod is screwed with a leveling nut, and the support plate is located between the leveling nut and the guide vane shaft head There is a through hole on the hollow jack, and each hollow jack is set on a threaded tie rod through the through hole. One end of the hollow jack is against the support plate, and the other end is against the shaft head of the guide vane. Solve the technical problem that the small deflection of the guide vane shaft head makes the installation of the guide vane shaft head difficult, affects the installation progress, and also affects the matching accuracy of the guide vane shaft and the guide vane shaft head.

Description

A guide vane shaft head installation tool

technical field

The utility model relates to the field of maintenance tools for hydropower equipment, in particular to a guide vane shaft head installation tool.

Background technique

The structure of the guide vane shaft and the guide vane shaft head of the water guide mechanism is shown in Figure 1. The guide vane shaft head is set on the guide vane shaft. The fine thread screw hole of the guide vane shaft head is equipped with a smooth inner hole. Adjust the screw sleeve so that the bolt passes through the inner hole of the adjusting screw sleeve to connect with the outer guide ring of the water guiding mechanism, so that the shaft head of the guide vane is fixed. When installing the guide vane shaft head of the water guide mechanism of the motor unit, due to the small fit clearance of the guide vane shaft head of the motor unit, it is necessary to make the central axis of the guide vane shaft head coincide with the central axis of the guide vane shaft before it can be installed. If the applied pressure is not uniform, the guide vane shaft head will be slightly deflected, and the friction between the guide vane shaft head and the guide vane shaft will be greatly increased, making the installation of the guide vane shaft head difficult and affecting the installation progress. It will also affect the matching accuracy of the guide vane shaft and the guide vane shaft head. Therefore, it is necessary to design a tool that facilitates the installation of the guide vane shaft head.

Contents of the invention

The purpose of this utility model is, in view of the above problems, to provide a guide vane shaft head installation tool to solve the small deflection of the guide vane shaft head caused by the uneven pressure applied during the installation process of the guide vane shaft head, so that the installation of the guide vane shaft head It is a technical problem that affects the installation progress and also affects the matching accuracy of the guide vane shaft and the guide vane shaft head.

In order to achieve the above object, the technical solution adopted in the utility model is:

A guide vane shaft head installation tool, including a support plate, several threaded pull rods, several leveling nuts and several hollow jacks, a number of through holes are opened on the support plate, and several threaded pull rods surround the center of the support plate evenly distribution, the central axes of the threaded rods are parallel to each other, one end of several threaded rods passes through the through hole, and the other end passes through the fine-threaded screw hole of the shaft head of the guide vane and is detachably connected with the outer guide ring; each of the The leveling nuts are screwed on the threaded pull rods, and the support plate is located between the leveling nuts and the shaft head of the guide vane; a through hole is arranged on the hollow jack, and each hollow jack passes through the through hole Set on a threaded pull rod, one end of the hollow jack abuts against the support plate, and the other end abuts against the shaft head of the guide vane.

Further, the support plate is disc-shaped, and several reinforcing ribs distributed radially are arranged on the support plate.

Further, the reinforcing ribs correspond to the through holes one by one, and the corresponding reinforcing ribs and the through holes are located on the same radial direction of the support plate.

Further, a suspension ring is provided on the support plate.

Further, a gasket is installed between the leveling nut and the support plate.

Further, the hollow jack is a hydraulic jack.

Owing to adopting above-mentioned technical scheme, the beneficial effect of the utility model is:

1. When the utility model is used to install the shaft head of the guide vane, one end of the threaded rod is screwed to the screw hole of the outer guide ring, and the shaft head of the guide vane is hoisted to the installation surface by means of a bridge machine or a hoist, and the shaft head of the guide vane is hoisted to the On the installation surface, the fine-threaded screw hole of the guide vane shaft head is put on the threaded tie rod, and the hollow jack is put on the threaded tie rod, and then the stressed support plate is installed, so that the through hole on the support plate is aligned with the threaded tie rod, so that the support plate is pressed On the hollow jack, install leveling nuts on each threaded tie rod, press the leveling nuts on the support plate, and adjust the parallelism between the support plate and the end surface of the guide vane shaft through the pressing force of the leveling nuts. By driving the hollow jack, the hollow jack exerts a downward tightening force on the guide vane shaft head through the force supporting plate, so that the guide vane shaft head is evenly stressed, and slowly returns to the position to realize the installation of the guide vane shaft head. Based on the above, the utility model can balance the force-bearing surface of the support plate with the end surface of the guide vane shaft, prevent the micro-deflection of the guide vane shaft head from uneven force when it is pressed in, and make the guide vane shaft head smoothly loaded; solve the problem of guide vane shaft The uneven pressure applied during the head installation process causes a slight deflection of the guide vane shaft head, which makes the installation of the guide vane shaft head difficult, affects the installation progress, and also affects the matching accuracy of the guide vane shaft and the guide vane shaft head. .

2. The utility model can strengthen the structural strength of the supporting plate by providing reinforcing ribs, and the corresponding reinforcing ribs and through holes are located on the same radial direction of the supporting plate, so that the reinforcing ribs can accurately withstand the force of the threaded tie rod. Prevent deformation of the support plate.

3. The utility model facilitates the hoisting of the support plate by being provided with lifting rings; the force of the support plate is more uniform by being provided with spacers, and prevents the deformation of the support plate caused by excessive local pressure.

Description of drawings

Fig. 1 is the installation structure drawing of guide vane shaft and guide vane shaft head of water guiding mechanism;

Fig. 2 is a plane structure diagram of the utility model for the use state of the guide vane shaft head;

Fig. 3 is a top view of the support plate of the present invention.

In the accompanying drawings, 1-guide vane shaft, 2-guide vane shaft head, 3-adjusting screw sleeve, 4-outer guide ring, 5-support plate, 6-thread tie rod, 7-leveling nut, 8-hollow jack, 9-through hole, 10-reinforcing rib, 11-hanging ring, 12-pad.

Detailed ways

The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

In describing the present invention, it should be understood that the terms "centre", "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom" The orientation or positional relationship indicated by , "inner", etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific Orientation, construction and operation in a particular orientation, therefore should not be construed as limiting the invention.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "below" a second feature may include direct contact between the first and second features, and may also include the first and second features being in direct contact with each other. The features are not in direct contact but through another feature between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

Please refer to Figure 2 and Figure 3, a guide vane shaft 1 head installation tool, including a support plate 5, several threaded rods 6, several leveling nuts 7 and several hollow jacks 8, the support plate 5 is provided with several through holes 9. Several threaded pull rods 6 are evenly distributed around the center of the support plate 5, the central axes of the threaded pull rods 6 are parallel to each other, one end of several threaded pull rods 6 passes through the through hole 9, and the other end passes through the guide The fine-thread screw hole at the head of the impeller shaft 1 is detachably connected to the outer guide ring 4; the leveling nut 7 is screwed on each of the threaded pull rods 6, and the support plate 5 is located between the leveling nut 7 and the guide vane. Between the heads of the shaft 1; the hollow jack 8 is provided with a through hole, each of the hollow jacks 8 is set on a threaded pull rod 6 through the through hole, and one end of the hollow jack 8 is connected to the support plate 5 against each other, and the other end against the guide vane shaft 1 head.

In this embodiment, the support plate 5 is in the shape of a disc, and a number of reinforcing ribs 10 distributed radially are arranged on the support plate 5 . The reinforcing ribs 10 correspond to the through holes 9 one by one, and the corresponding reinforcing ribs 10 and the through holes 9 are located on the same radial direction of the support plate 5 . The structural strength of the supporting plate 5 can be enhanced by providing the reinforcing rib 10, and the corresponding reinforcing rib 10 and the through hole 9 are located on the same radial direction of the supporting plate 5, so that the reinforcing rib 10 can accurately withstand the force of the threaded tie rod 6. Force, to prevent the deformation of the support plate 5.

In this embodiment, the support plate 5 is provided with a suspension ring 11 . The hoisting of the support plate 5 is facilitated by the provision of the hoisting ring 11 . A washer 12 is installed between the leveling nut 7 and the support plate 5 . The support plate 5 is more evenly stressed by being provided with the gasket 12 , and the deformation of the support plate 5 caused by excessive local pressure is prevented. The hollow jack 8 is a hydraulic jack.

Specifically, the support plate 5 adopts a steel plate with a thickness of 40 mm, and cuts a disc with a bearing diameter of 600 mm, and cuts four through holes 9 of Φ50 mm uniformly around the disc according to the center distance of the adjusting screw sleeve 3 . Four reinforcing ribs 10 are welded respectively at the center of the through hole 9 and the disc, and a suspension ring 11 is welded at the center of the disc.

When installing the guide vane shaft 1, connect one end of the threaded rod 6 to the screw hole of the outer guide ring 4, use a bridge machine or hoist to lift the guide vane shaft 1 to the installation surface, and hoist the guide vane shaft 1 to the installation surface. On the installation surface, the fine-threaded screw hole of the guide vane shaft 1 head is set on the threaded tie rod 6, and 8 sets of hollow jacks are put on the threaded tie rod 6, and then the force-bearing support plate 5 is installed to align the through hole 9 on the support plate 5. Threaded pull rods 6, so that the support plate 5 is pressed on the hollow jack 8, and a leveling nut 7 is installed on each threaded pull rod 6, so that the leveling nuts 7 are pressed on the support plate 5, and the pressing force of the leveling nuts 7 is adjusted. The parallelism between the support plate 5 and the end face of the guide vane shaft 1. Drive the hollow jack 8, and the hollow jack 8 exerts a downward tightening force on the guide vane shaft 1 through the force supporting plate 5, so that the force on the guide vane shaft 1 is uniform, and it is slowly put back in place to realize the guide vane shaft 1. header installation. Based on the above, the utility model can make the force-bearing surface of the support plate 5 level with the end surface of the guide vane shaft 1, prevent the slight deflection of force unevenness when the guide vane shaft 1 head is pressed in, and make the guide vane shaft 1 head smoothly loaded; Solve the uneven pressure applied during the installation of the guide vane shaft 1, which causes the slight deflection of the guide vane shaft 1, making the installation of the guide vane shaft 1 difficult, affecting the installation progress, and also affecting the guide vane shaft 1 and the guide vane shaft 1 Technical issues that affect the fit accuracy of the head.

The above description is a detailed description of the preferred feasible embodiments of the present utility model, but the embodiments are not used to limit the scope of the patent application of the present utility model. All equivalent changes or modifications completed under the technical spirit suggested by the utility model, All should belong to the patent scope covered by the utility model.

Claims (6)

1. The utility model provides a stator spindle nose mounting tool which characterized in that: the guide vane comprises a supporting plate, a plurality of threaded pull rods, a plurality of leveling nuts and a plurality of hollow jacks, wherein the supporting plate is provided with a plurality of through holes, the plurality of threaded pull rods are uniformly distributed around the center of the supporting plate, the central axes of the threaded pull rods are parallel to each other, one ends of the plurality of threaded pull rods penetrate through the through holes, and the other ends of the plurality of threaded pull rods penetrate through fine thread screw holes of a guide vane shaft head to be detachably connected with an outer guide ring; each threaded pull rod is provided with the leveling nut in a threaded mode, and the supporting plate is located between the leveling nut and the guide vane shaft head; the hollow jack is provided with a through hole, each hollow jack is sleeved on one threaded pull rod through the through hole, one end of the hollow jack is abutted to the supporting plate, and the other end of the hollow jack is abutted to the guide vane shaft head.

2. The guide vane spindle head installation tool of claim 1, wherein: the supporting plate is disc-shaped, and a plurality of reinforcing ribs which are distributed in a radial mode are arranged on the supporting plate.

3. The guide vane spindle head mounting tool of claim 2, wherein: the reinforcing ribs correspond to the through holes one to one, and the corresponding reinforcing ribs and the corresponding through holes are located in the same radial direction of the supporting plate.

4. The guide vane spindle head mounting tool of claim 1, wherein: and the supporting plate is provided with a lifting ring.

5. The guide vane spindle head installation tool of claim 1, wherein: and a gasket is arranged between the leveling nut and the supporting plate.

6. The guide vane spindle head installation tool of claim 1, wherein: the hollow jack is a hydraulic jack.

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