CN216759758U - Special tool for pulling guide vane bearing seat - Google Patents

Abstract

The utility model discloses a special tool for removing a guide vane bearing seat, which comprises a connector and a stress structure fixed on the connector; the stress structure comprises a radial stress plate and a transverse stress plate, and the transverse connecting plate is connected to the top of the radial stress plate; a reinforced connecting rib plate is arranged between the radial stress plate and the connector; the connector is matched with the guide vane bearing seat in size, a plurality of connecting through holes are formed in the connector, and the positions of the connecting through holes are matched with the positions of connecting blind holes in the guide vane bearing seat. The guide vane bearing support dismantling device can improve bearing capacity, reduce repeated welding, cutting and repairing work during guide vane bearing support dismantling, reduce safety risks, improve dismantling efficiency and guarantee overhaul period.

Description

Special tool for pulling guide vane bearing seat

Technical Field

The utility model belongs to the technical field of water conservancy and hydropower, and particularly relates to a special tool for removing a guide vane bearing seat.

Background

The bulb through-flow type water turbine generator set is horizontally arranged, the excavation depth is relatively shallow, the water diversion pipeline is short, the height of a dam is small, the total civil engineering quantity is relatively small, and therefore civil investment is relatively low. In addition, the position of the low-water-head power plant is generally flat, is close to a city, and the equipment transportation line is flat and short in distance, so that the site construction and the equipment installation are more convenient, the related cost is reduced, and the construction period can be shortened, thereby realizing the purpose of generating electricity in advance.

Therefore, the bulb through-flow type water turbine generator set is more in production in recent years and is an important branch of hydropower, the water distributor is one of important components of the water turbine and plays a role in guiding water flow to form circulation and controlling flow, and after the generator set runs for a long time, a guide vane bearing seat of the water distributor is easy to leak water, so that the environment of electrical equipment and a gallery below is seriously influenced. The stator bearing frame is the support piece and the rotation atress part of stator, generally for forging, little clearance assembly, in addition the corrosion influence of leaking, the dismantlement degree of difficulty of bearing frame is very big. Host manufacturers do not have special tools, and in order to solve the problem, firstly a door-shaped frame is designed, welded on a bearing seat and then ejected by a jack.

However, in the prior art, the disassembly mode easily causes that (1) is easy to deform after being stressed; (2) every time a connecting lever is disassembled, a frame is welded with the connecting lever, after the frame is disassembled, the frame is cut off and the welding part of the connecting lever is repaired, a large amount of manpower and material resources are wasted, and huge safety risks caused by overhead welding operation exist. (3) The bearing seat is small in stress, the edge of the bearing seat is thin, and a welding part is easy to tear after stress.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special tool for removing a guide vane bearing seat, which has the advantages of improving the bearing capacity, reducing repeated welding, cutting and repairing work during the removal of the guide vane bearing seat, reducing the safety risk, improving the removal efficiency and ensuring the maintenance period.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the special tool for removing the guide vane bearing seat comprises a connector and a stress structure fixed on the connector; the stress structure comprises a radial stress plate and a transverse stress plate, and the transverse connecting plate is connected to the top of the radial stress plate; a reinforced connecting rib plate is arranged between the radial stress plate and the connector; the connector is matched with the guide vane bearing seat in size, a plurality of connecting through holes are formed in the connector, and the positions of the connecting through holes are matched with the positions of connecting blind holes in the guide vane bearing seat.

Furthermore, the connector is of a disc-shaped structure, and the reinforcing connecting rib plates are arranged at the top of the disc at intervals.

Furthermore, a jack through hole is formed in the middle of the connector.

Further, the reinforcing rib plates comprise at least four reinforcing rib plates which are respectively and uniformly arranged along the radial stress plate at intervals.

Furthermore, welding grooves are arranged at the joints of the reinforced connecting rib plates.

Further, the connecting through hole is an M24 threaded through hole.

Further, the connector or the radial stress plate is externally provided with a hoisting hole.

Compared with the prior art, the utility model has the advantages that: firstly, the special bolt tool is fixed with the bearing seat, so that the safety in high-altitude use is improved, the repeated welding, cutting and repairing work of the original door-shaped frame bearing seat is reduced, and the dismounting speed is greatly improved.

Secondly, the utility model can effectively improve the pressure which can be born by the tool under the assistance of the radial stress plate and the plurality of reinforcing connecting rib plates, and the pulling tool can meet the stress requirement of 200T and is not deformed in the practical application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a special tool for removing a guide vane bearing seat provided by the utility model.

Fig. 2 is a schematic top view of the special tool for removing the guide vane bearing seat provided in the present invention.

Fig. 3 is a schematic structural diagram of the special tool for removing the guide vane bearing seat provided by the utility model after installation.

Reference numerals are as follows: the device comprises a connector 1, a radial connecting plate 2, a reinforcing connecting rib plate 3, a transverse connecting plate 4, a connecting through hole 5, a jack 6, a guide vane 7 and a guide vane bearing seat 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, the description is merely for convenience of description and simplification, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

As shown in fig. 1-3, a special tool for removing a guide vane bearing seat comprises a connector 1 and a stress structure fixed on the connector 1; the stress structure comprises a radial stress plate and a transverse stress plate, and the transverse connecting plate 4 is connected to the top of the radial stress plate; a reinforced connecting rib plate 3 is arranged between the radial stress plate and the connector 1; the connector 1 is matched with the guide vane bearing seat in size, a plurality of connecting through holes 5 are formed in the connector 1, and the positions of the connecting through holes 5 are matched with the positions of connecting blind holes in the guide vane bearing seat.

The water leakage treatment of the water distributor guide vane bearing pedestal 8 is a key project for the maintenance of the bulb through-flow unit. Compared with the prior art, the door-shaped frame is mainly adopted for dismantling in the prior art, the schedule of the construction period of the door-shaped frame is mainly adopted to seriously influence the gap adjustment of the rear guide vane 7 and the schedule of the whole overhaul construction period, for example, in the repair of a No. 3 unit C of the Sichuan Canxi avionic hub, 4 guide vane bearing seats are required to be treated to leak water, the original door-shaped frame is used for welding, dismantling and repairing one guide vane bearing seat, and then dismantling one guide vane bearing seat again requires 4-5 days for the total construction period.

In the utility model, the bearing seat is directly fixed on the bearing seat by the bolt by using a special tool without welding, cutting and repairing. On one hand, the construction period can be greatly saved, and in the same project maintenance, the removal of the guide vane 7 bearing by using the removal tool provided by the utility model can be completed within the construction period of only 2-3 days, so that the working efficiency is effectively improved; meanwhile, on the other hand, the utility model can be continuously used, can effectively save the disassembly cost and bring economic benefits.

The coupling 1 is of a disc-shaped construction and the reinforcing connector ribs 3 are spaced apart at the top of the disc. The middle part of the connector 1 is provided with a jack 6 via hole. The number of the reinforcing rib plates is at least four, and the reinforcing rib plates are respectively and uniformly arranged along the radial stress plate at intervals. The joints of the reinforced connecting rib plates 3 are all provided with welding grooves. All plate connections are welded by grooves, so that the stress strength is increased.

The connecting through hole 5 is an M24 threaded through hole. The connecting through hole 5 is an 8-M24 threaded hole, so that the connecting capacity between the connector 1 and the guide vane 7 bearing is enhanced.

And hoisting holes are arranged outside the connector 1 or the radial stress plate.

In practical use, the utility model can be moved and installed in an auxiliary way by utilizing the hoisting hole, and the hoisting hole can be designed at a plurality of convenient positions. The connector 1 and the guide vane bearing seat are fixed by 8-M24 bolts with the aid of lifting holes. The main stressed frame of the utility model is a hydraulic jack 6, the hydraulic jack 6 is supported on a transverse stressed connecting plate, a radial stressed plate and a connector 1 are welded and fixed with the connector 1 through a reinforced connecting ribbed plate 3, and after the transverse stressed plate is stressed, the transverse stressed plate is integrally moved up under the action of the jack 6 to drive the guide vane bearing seat to be pulled out. After the guide vane bearing seat is pulled out, the pulling tool can be moved to the next pulling point for operation only by detaching the bolt, the pulling efficiency can be effectively improved, and the maintenance period is shortened.

The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present application.

Claims (7)

1. The utility model provides a specialized tool is pulled out to guide vane bearing frame which characterized in that: comprises a connector (1), a stress structure fixed on the connector (1); the stress structure comprises a radial stress plate and a transverse stress plate, and the transverse connecting plate (4) is connected to the top of the radial stress plate; a reinforced connecting rib plate (3) is arranged between the radial stress plate and the connector (1); the connector (1) is matched with the guide vane bearing seat in size, a plurality of connecting through holes (5) are formed in the connector (1), and the positions of the connecting through holes (5) are matched with the positions of connecting blind holes in the guide vane bearing seat.

2. The special tool for pulling out the guide vane bearing seat according to claim 1, wherein: the connector (1) is of a disc-shaped structure, and the reinforced connecting rib plates (3) are arranged at the top of the disc at intervals.

3. The special tool for pulling out the guide vane bearing seat according to claim 1, wherein: and a jack (6) through hole is formed in the middle of the connector (1).

4. The special tool for pulling out the guide vane bearing seat according to claim 1, wherein: the reinforced connecting rib plates comprise at least four reinforced connecting rib plates which are respectively and uniformly arranged along the radial stress plate at intervals.

5. The special tool for pulling out the guide vane bearing seat according to claim 4, wherein: and welding grooves are arranged at the joints of the reinforced connecting rib plates (3).

6. The special tool for pulling out the guide vane bearing seat according to claim 1, wherein: the connecting through hole (5) is an M24 threaded through hole.

7. The special tool for pulling out the guide vane bearing seat according to claim 1, wherein: and hoisting holes are formed in the outer parts of the connectors (1) or the radial stress plates.

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