CN219053510U

CN219053510U - Device for disassembling generator shafting in narrow space

Info

Publication number: CN219053510U
Application number: CN202223298980.7U
Authority: CN
Inventors: 张明皓; 王强; 王晓; 许军
Original assignee: Jiangsu CRRC Electric Co Ltd
Current assignee: Jiangsu CRRC Electric Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-23
Anticipated expiration: 2032-12-09

Abstract

The utility model provides a device for disassembling a generator shafting in a narrow space, which comprises a fixed disc, shafting guide rods, shafting ejector rods, lifting rings and a manual hoist, wherein the fixed disc is arranged on the shafting guide rods; one end of the shafting guide rod penetrates into a fixing bolt hole formed by connecting the shafting with the machine base, the other end of the shafting guide rod penetrates through the fixing disc and is fixed on two sides of the fixing disc by nuts, the hanging ring is connected into a threaded hole in the end face of the hollow shaft through threads and is tensioned through a chain block, one end of the shafting ejector rod penetrates into the threaded hole in the end face of the hollow shaft, and the other end of the shafting ejector rod penetrates through the fixing disc and is fixed on the outer side of the fixing disc through the nuts. The utility model can realize that the shafting exits from the engine base spigot and axially moves out for a certain distance, and the engine room can completely exit when the operational space of the engine room is enough, thereby realizing the cleaning of the engine oil way and the replacement of the sealing component.

Description

Device for disassembling generator shafting in narrow space

Technical Field

The utility model belongs to the technical field of electrical equipment, and particularly relates to a device for disassembling a generator shafting in a narrow space.

Background

The internal shafting of the existing permanent magnet generator or the generator model designed compactly in China needs to be maintained after the generator is operated for a period of time, common generator faults are generally that foreign matters block oil paths, because the shafting is connected with the generator, the oil filling hole is connected with a base oil path, when the condition such as oil path blocking and the like occurs at the end face position of the generator, the internal condition is generally observed at the oil inlet position of the base oil path by an endoscope, if the foreign matters are shallower from the oil inlet position, the foreign matters are cleaned by a magnetic suction rod or a low-power dust collector; if the foreign matter is far away from the oil inlet or cannot be observed, the high-power dust collector or the air pump is used for cleaning the foreign matter. Because the bearing seat of a part of machine types lacks a top hole design and the space inside the engine room is limited, the shafting is difficult to detach for maintenance when faults occur.

Disclosure of Invention

In order to solve the problems, the utility model discloses a device for disassembling a generator shafting in a narrow space, which can realize that the shafting exits from a machine base spigot and axially moves out a certain distance, and the engine room can be completely exited when the operable space of the engine room is enough, so that the cleaning of an oil circuit of the generator and the replacement of a sealing assembly are realized.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a device for disassembling a generator shafting in a narrow space comprises a fixed disc, shafting guide rods, shafting ejector rods, lifting rings and a manual hoist; one end of the shafting guide rod penetrates into a fixing bolt hole formed by connecting the shafting with the machine base, the other end of the shafting guide rod penetrates through the fixing disc and is fixed on two sides of the fixing disc by nuts, the hanging ring is connected into a threaded hole in the end face of the hollow shaft through threads and is tensioned through a chain block, one end of the shafting ejector rod penetrates into the threaded hole in the end face of the hollow shaft, and the other end of the shafting ejector rod penetrates through the fixing disc and is fixed on the outer side of the fixing disc through the nuts.

Further, the phase angle between the threaded hole of the end face of the hollow shaft installed by the chain block and the threaded hole of the end face of the hollow shaft installed by the shafting mandril is 180 degrees.

Further, the fixed disc is split type spliced and installed, a circle of holes corresponding to the fixed bolt holes, which are connected with the shafting and the engine base, are formed in the fixed disc and used for the shafting guide rod to pass through, and a circle of through holes corresponding to the threaded holes of the shafting end face are formed in the fixed disc and used for the shafting ejector rod to pass through.

The beneficial effects of the utility model are as follows:

1. the special structure of the utility model can realize that the shafting is withdrawn from the engine base spigot and axially moved out for a certain distance, and the shafting can be completely withdrawn when the cabin has enough operable space, thereby realizing the cleaning of the generator oil circuit and the replacement of the sealing component.

2. The utility model can realize the replacement of the bearing of the generator in a narrow space, treat abnormal conditions such as oil way blockage, shafting oil leakage and the like, is beneficial to shortening the replacement period of the fault bearing and reducing maintenance and protection working cost.

3. The utility model can be used for maintenance work of the generator in a narrow space, can be applied to other generators with similar structures, and provides important methods and experiences for subsequent replacement of the bearing of the generator with higher power.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

fig. 2 is a schematic structural view of the fixed disk of the present utility model.

Reference numerals and description of the components referred to in the drawings:

1-fixing a disc; 2-shafting guide rod; 3-shafting ejector rods; 4-a manual hoist; 5-nuts; 6-hanging rings; 7-a stand; 8-hollow shaft.

Detailed Description

The present utility model is further illustrated in the following drawings and detailed description, which are to be understood as being merely illustrative of the utility model and not limiting the scope of the utility model.

As shown in fig. 1, the device for disassembling a generator shafting in a narrow space in the embodiment comprises a fixed disc 1, a shafting guide rod 2, a shafting push rod 3, a lifting ring 6 and a hand-operated block 4; one end of the shafting guide rod penetrates into a fixing bolt hole formed by connecting the shafting with the base 7, the other end of the shafting guide rod penetrates through the fixing disc and is fixed by nuts 5 on two sides of the fixing disc, the hanging ring is connected into a threaded hole in the end face of the hollow shaft 8 through threads and is tensioned through a chain block, one end of the shafting ejector rod penetrates into the threaded hole in the end face of the hollow shaft, and the other end of the shafting ejector rod penetrates through the fixing disc and is fixed on the outer side of the fixing disc through the nuts.

In this embodiment, the phase angle between the threaded hole of the end surface of the hollow shaft installed by the chain block and the threaded hole of the end surface of the hollow shaft installed by the shafting push rod is 180 °.

In this embodiment, the fixed disc is split type and spliced, a circle of holes corresponding to the fixed bolt holes connected with the shafting and the stand are arranged on the fixed disc and used for the shafting guide rod to pass through, and a circle of through holes corresponding to the threaded holes of the shafting end face are arranged and used for the shafting ejector rod to pass through.

The working process comprises the following steps:

by adopting the disassembling device, the working process of the utility model is as follows:

and taking out a fixing bolt connected with the shafting and the stand, screwing the shafting guide rod 2 in the circumferential direction, enabling the tail end to pass through the fixing disc 1, and fixing the two ends by nuts 5 respectively. The shafting ejector rod 3 passes through the fixed disc 1 and is screwed into the threaded hole on the end face of the hollow shaft, the tail end of the shafting ejector rod is fixed by the nut 5, the hanging ring 6 is symmetrically screwed into the threaded hole on the end face of the hollow shaft, the shafting ejector rod is tensioned by the chain block 4, then the chain block 4 passes through the fixed disc 1 to hoist Kong Lajin, the nut 5 at the tail end of the shafting ejector rod 3 is tightened by an electric tool, the spigot of the shafting ejector seat is ejected, and then the shafting is slowly withdrawn by the electric tool matched with the chain block. Considering that the hoisting channel of the engine room of part of the generator is relatively narrow, the fixed disc 1 can be designed to be split type spliced installation.

It should be noted that the foregoing merely illustrates the technical idea of the present utility model and is not intended to limit the scope of the present utility model, and that a person skilled in the art may make several improvements and modifications without departing from the principles of the present utility model, which fall within the scope of the claims of the present utility model.

Claims

1. The device for disassembling the generator shafting in the narrow space is characterized by comprising a fixed disc, shafting guide rods, shafting ejector rods, lifting rings and a manual hoist; one end of the shafting guide rod penetrates into a fixing bolt hole formed by connecting the shafting with the machine base, the other end of the shafting guide rod penetrates through the fixing disc and is fixed on two sides of the fixing disc by nuts, the hanging ring is connected into a threaded hole in the end face of the hollow shaft through threads and is tensioned through a chain block, one end of the shafting ejector rod penetrates into the threaded hole in the end face of the hollow shaft, and the other end of the shafting ejector rod penetrates through the fixing disc and is fixed on the outer side of the fixing disc through the nuts.

2. The device for disassembling a generator shafting in a narrow space according to claim 1, wherein a phase angle between a threaded hole of the end face of the hollow shaft on which the chain block is mounted and a threaded hole of the end face of the hollow shaft on which the shafting mandril is mounted is 180 °.

3. The device for disassembling the generator shafting in the narrow space according to claim 1 or 2, wherein the fixed disc is split type spliced and installed, a circle of holes corresponding to the fixed bolt holes, which are connected with the shafting and the base, are arranged on the fixed disc and used for the shafting guide rod to pass through, and a circle of through holes corresponding to the threaded holes of the shafting end face are arranged on the fixed disc and used for the shafting ejector rod to pass through.