CN215201761U - Water turbine guide vane halving key or pin pulling-out device - Google Patents

Abstract

The utility model provides a hydraulic turbine stator divides half key or pin to extract device, includes the T type and extracts the mould, and the mould both ends are extracted to the T type are equipped with hydraulic jack-up device, and on the T type was extracted the mould was located to the long screw rod, long screw rod one end with divide half key or pin joint, extract the mould jack-up with the T type through hydraulic jack-up device, make the long screw rod atress slowly drive the pin and extract. The utility model discloses simple structure is novel, convenient to use, and the effect is obvious, adopts the utility model discloses but convenient and fast dismantles the stator and divides half key and cross water part pin. The whole disassembly process is time-saving and labor-saving, and the safety is safe and has no hidden danger. The device is particularly suitable for unit maintenance.

Description

Water turbine guide vane halving key or pin pulling-out device

Technical Field

The utility model relates to a device, especially a hydraulic turbine stator divides half key or pin extraction device belongs to mechanical design and makes technical field.

Background

In the process of overhauling and disassembling the water turbine, the guide vane is required to be divided into half keys, and the water passing part pin is required to be pulled out to continue to be disassembled in the next step.

In the unit repacking process, the water passing part pin and the guide vane are fixed by half keys tightly, so that the pins of all parts are tightly closed after the unit runs for a long time, and the unit is disassembled by adopting manual strong pulling out in the conventional unit overhauling process, which is time-consuming and labor-consuming.

How to shorten the disassembly time, reduce the manpower consumption, reduce the dismantlement degree of difficulty is the problem that needs to solve at present.

SUMMERY OF THE UTILITY MODEL

Dismantle consuming time for reducing during the maintenance, reduce the human consumption, the utility model provides a device is extracted to hydraulic turbine turning arm branch half key or pin.

The utility model discloses a following technical scheme accomplishes:

the utility model provides a hydraulic turbine stator divides half key or pin to extract device, includes the T type and extracts the mould, and the mould both ends are extracted to the T type are equipped with hydraulic jack-up device, and on the T type was extracted the mould was located to the long screw rod, long screw rod one end with divide half key or pin joint, extract the mould jack-up with the T type through hydraulic jack-up device, make the long screw rod atress slowly drive the pin and extract.

Further, the T-shaped extraction die comprises a top plate and a bottom cavity, and the long screw is arranged in the bottom cavity.

Furthermore, a limit double nut is arranged on the long bolt at one end of the bottom cavity.

Further, the top plate is angle steel, and the bottom chamber is three angle steels and constitutes, wherein, leaves the bolt hole in the middle of the bottom angle steel.

Furthermore, both ends of the long screw are provided with screw threads, one end of the long screw is provided with a limiting double nut for limiting the long screw, and the other end of the long screw is used for contacting and fixing the pin.

Furthermore, the hydraulic jacking device is a separating jack, and the long screw is driven to pull out the pin or the split key by jacking a top plate of the T-shaped pulling-out die.

Compared with the prior art, the utility model has the advantages of it is following and effect:

the utility model discloses simple structure is novel, convenient to use, and the effect is obvious, adopts the utility model discloses but convenient and fast dismantles the stator and divides half key and cross water part pin. The whole disassembly process is time-saving and labor-saving, and the safety is safe and has no hidden danger. The device is particularly suitable for unit maintenance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless otherwise defined, technical or scientific terms used in the embodiments of the present application should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. The use of "first," "second," and similar terms in the embodiments of the invention do not denote any order, quantity, or importance, but rather the embodiments are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "Upper," "lower," "left," "right," "lateral," "vertical," and the like are used solely in relation to the orientation of the components in the figures, and these directional terms are relative terms that are used for descriptive and clarity purposes and that can vary accordingly depending on the orientation in which the components in the figures are placed.

As shown in fig. 1, the turbine guide vane halving key or pin extraction device of the embodiment includes a T-shaped extraction mold 1, two ends of the T-shaped extraction mold 1 are provided with hydraulic jacking devices 2, a long screw 5 is arranged on the T-shaped extraction mold 1, one end of the long screw 5 is connected with the halving key or pin, the T-shaped extraction mold 1 is jacked up through the hydraulic jacking devices 2, and the long screw 5 is slowly driven by the stress to extract the pin.

The T-shaped extraction mold comprises a top plate and a bottom cavity, and the long screw is arranged in the bottom cavity. The roof is the angle steel, and the bottom chamber is three angle steels and constitutes, and wherein, leaves bolt hole 4 in the middle of the bottom angle steel.

And a limit double nut 3 is arranged on the long bolt 5 positioned at one end of the bottom cavity. The two ends of the long screw rod 5 are both provided with screw threads, one end of the long screw rod is provided with a limiting double nut 3 for limiting the long screw rod 5, and the other end of the long screw rod is used for contacting and fixing a pin. The hydraulic jacking device 2 is a separate jack and drives a long screw to pull out the pin or the split key by jacking a top plate of the T-shaped pull-out die.

When in work:

firstly, fixing a long screw 5 on a guide vane half-key or a pin, then penetrating the long screw 5 through a screw hole 4 of a T-shaped extraction mould 1, tightly backing a limit nut of the long screw 5, placing a hydraulic jacking device 2 below the T-shaped extraction mould 1, and slowly operating the hydraulic jacking device 2 to enable the T-shaped extraction mould 1 to be stressed to drive the long screw 5 to extract the guide vane half-key or the pin.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a hydraulic turbine stator divides half key or pin extraction element which characterized in that: the T-shaped pull-out die comprises a T-shaped pull-out die, wherein hydraulic jacking devices are arranged at two ends of the T-shaped pull-out die, a long screw is arranged on the T-shaped pull-out die, one end of the long screw is connected with a half-split key or a pin, and the T-shaped pull-out die is jacked up through the hydraulic jacking devices, so that the long screw is slowly driven to pull out the pin under the stress.

2. The turbine guide vane split key or pin puller of claim 1, wherein: the T-shaped extraction mold comprises a top plate and a bottom cavity, and the long screw is arranged in the bottom cavity.

3. The turbine guide vane split key or pin puller of claim 2, wherein: and a limiting double nut is arranged on the long bolt positioned at one end of the bottom cavity.

4. The turbine guide vane split key or pin puller of claim 2, wherein: the roof is the angle steel, and the bottom chamber is three angle steels and constitutes, and wherein, leaves the bolt hole in the middle of the angle steel of bottom.

5. The turbine guide vane split key or pin puller of claim 1, wherein: the two ends of the long screw are provided with screw threads, one end of the long screw is provided with a limiting double nut for limiting the long screw, and the other end of the long screw is used for contacting and fixing the pin.

6. The turbine guide vane split key or pin puller of claim 1, wherein: the hydraulic jacking device is a separated jack, and the long screw is driven to pull out the pin or the split key by jacking a top plate of the T-shaped pull-out die.

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