CN206665943U - A kind of power plant, which is taken out, wears generator rotor hoisting device - Google Patents

Abstract

The utility model discloses a rotor hoisting device for pumping through a generator in a power plant, comprising a rotor and a stator cavity, the rotor is located inside the stator cavity, and steam end covers and excitation end covers are respectively arranged at both ends of the stator cavity , a slide plate is provided on the upper side of the inner wall of the stator cavity, a slider is provided on the upper side of the slide plate, and a support bracket is provided above the stator cavity, and the support bracket is connected to the steam end journal of the rotor through a sling, and the rotor A jacking device is provided below the journal of the steam end of the rotor, and a traction pulley is provided on one side of the journal of the exciting end of the rotor. The utility model is equipped with a protective pad between the slide plate and the inner wall of the stator cavity, which can well protect the stator cavity. The jacking device includes a jack and a concave arc surface cushion block, which replaces the traditional crane lifting rotor. , Improve the jacking effect, the driving sling is set at the shaft journal of the excitation end of the rotor, which can lift the rotor into place synchronously and at one time, improving the working efficiency.

Description

A lifting device for pumping through generator rotor in a power plant

technical field

The utility model relates to the field of hoisting equipment, in particular to a hoisting device for pumping through generator rotors in power plants.

Background technique

The total weight of the generator rotor is 66135Kg, and the total length is 12175mm. Since there is only one 100/20T crane in the machine room, during the pumping process, the two ends of the rotor need to be hoisted separately by the crane before the slide plate and the rotor can be laid in the stator bore. The slider is dragged, but during the lifting process of the rotor, due to the length of the rotor, it is impossible to lift both ends of the rotor to the highest position at one time. It takes several times to lift the two ends of the rotor to the highest level, and the crane is hoisting back and forth at both ends of the rotor During the process, the bolts of the special hanging device need to be tightened synchronously to hang the rotor, which takes a long time.

Utility model content

The purpose of the utility model is to provide a lifting device for pumping through a generator rotor in a power plant to solve the problems of low efficiency and poor jacking effect in the prior art.

In order to achieve the above purpose, the utility model provides the following technical solutions: a lifting device for pumping through the generator rotor of a power plant, including a rotor and a stator cavity, the rotor is located inside the stator cavity, and the two ends of the stator cavity are respectively provided with steam For the end cover and the excitation end cover, a slide plate is arranged on the upper side of the inner wall of the stator cavity, and a slider is arranged on the upper side of the slide plate, the slider is located below the rotor, and a support bracket is arranged above the stator cavity, and the support bracket The steam end journal of the rotor is connected by a sling, and a jacking device is provided below the steam end journal of the rotor. The jacking device includes a jack and a concave arc pad. One side is provided with traction pulley block.

Preferably, a protective pad is provided between the slide plate and the inner wall of the stator cavity.

Preferably, a driving sling is provided at the journal of the exciting end of the rotor.

Preferably, the sling is connected to the support bracket through support bracket bolts.

Compared with the prior art, the beneficial effect of the utility model is: the utility model is provided with a protective pad between the slide plate and the inner wall of the stator cavity, which can well protect the stator cavity, and the jacking device includes a jack And the concave arc surface pad replaces the traditional driving lifting rotor, which improves the lifting effect. The driving sling is set at the journal of the exciting end of the rotor, which can lift the rotor to the position synchronously and at one time, improving the working efficiency. , the sling is connected to the support bracket through the support bracket bolts, the sling can be well tightened for protection, the structure is simple, and the design is reasonable.

Description of drawings

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

Fig. 2 is the assembly diagram of the utility model.

Fig. 3 is the effect diagram of the utility model.

In the figure: 1-support bracket, 2-sling, 3-rotor, 4-jack, 5-steam end cover, 6-slider, 7-protection pad, 8-slide, 9-excitation end cover, 10 - driving sling, 11 - traction pulley block.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1 to 3. In the embodiment of the present utility model, a power plant draw-through generator rotor hoisting device includes a rotor 3 and a stator cavity. The rotor 3 is located inside the stator cavity. Two ends of the stator cavity are respectively provided with The steam end cover 5 and the excitation end cover 9, a slide plate 8 is arranged on the upper side of the inner wall of the stator cavity, a slider 6 is arranged on the upper side of the slide plate 8, the slider 6 is located below the rotor 3, and a support bracket 1 is arranged above the stator cavity , the support bracket 1 is connected to the steam end journal of the rotor 3 through the sling 2, and a jacking device is provided below the steam end journal of the rotor 3, and the jacking device is used to lift the steam end shaft of the rotor 3, and the lifting The cable 2 is used to fix the lifted rotor 3 on the support bracket 1. A traction pulley block 11 is provided on the side of the journal at the excitation end of the rotor 3. The traction pulley block 11 is used for lateral traction of the rotor 3. The slide plate 8 and A protective pad 7 is provided between the inner walls of the stator cavity. The jacking device includes a jack 4 and a concave arc pad. The driving end journal of the rotor 3 is provided with a driving sling 10. The sling 2 passes through the supporting bracket bolt and the supporting bracket 1. connect.

The working principle of the utility model is as follows: a special concave arc pad is placed on the top shaft of the jack 4, the jack 4 makes the concave arc pad contact with the journal of the rotor 3 and is slightly stressed, and the steam end support bracket 1 sling 2 For the journal of the rotor 3, first use the jack 4 to slowly lift the steam end of the rotor 3 and simultaneously tighten the supporting bracket bolts of the steam end to tighten the sling 2, so that the steam end of the rotor 3 can be raised to a suitable height, and then use the driving sling 10 on the rotor 3 Slightly lift the rotor at the shaft journal of the excitation end so that the weight of the rotor 3 bears the weight. Remove the steam end and the excitation end jacking device on the crane and the jack 4, and remove the bolts of the lower end covers at both ends of the steam excitation. 3 lifts the driving hook, the steam end of the rotor 3 lifts the jack 4, simultaneously lifts the rotor 3 to a sufficient height, and tightens the steam end support bracket bolts at the same time after the steam end jack 4 is raised for a small distance. Tighten the sling 2 for protection, install the cleaned slide plate 8, slider 6 and protection pad 7 from the excitation end of the rotor 3, loosen the bolts of the steam end support bracket to loosen the sling 2 and slowly lower the jack 4, so that the rotor 3 Supported on the slider 6 at the steam end, remove the jack 4 and the steel wire rope supporting the bracket 1, install the rotor traction tool at the excitation end, and arrange the traction pulley block 11 of the hoist, and use the driving and hoist to pull the rotor 3 toward the excitation end until In the position shown in Fig. 3, the traction pulley block 11 is released, and the rotor 3 is hoisted out by using the special sling for the large driving hook.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. a kind of power plant, which is taken out, wears generator rotor hoisting device, including rotor (3) and stator cavity, it is characterised in that:It is described Rotor (3) is located at stator inside cavity, and stator cavity both ends are respectively arranged with vapour end end cap (5) and encourage end end cap (9), bore of stator Slide plate (8) is provided with the upside of internal wall, is provided with sliding block (6) on the upside of the slide plate (8), the sliding block (6) is located under rotor (3) Side, stator cavity top are provided with supporting support (1), and the supporting support (1) passes through hoist cable (2) and the vapour end axle of rotor (3) Connected at neck, lower section is provided with jacking apparatus at the vapour end-journal of the rotor (3), and jacking apparatus includes jack (4) and recessed Cambered surface cushion block, the side at end-journal of encouraging of the rotor (3) are provided with hauling block group (11).

2. a kind of power plant according to claim 1, which is taken out, wears generator rotor hoisting device, it is characterised in that：The slide plate (8) neonychium (7) is provided between stator cavity inner wall.

3. a kind of power plant according to claim 1, which is taken out, wears generator rotor hoisting device, it is characterised in that：The rotor (3) encourage is provided with traveling crane band (10) at end-journal.

4. a kind of power plant according to claim 1, which is taken out, wears generator rotor hoisting device, it is characterised in that：The hoist cable (2) connected by supporting support bracket bolt and supporting support (1).