Air cushion type tool for drawing generator rotor

Abstract

The utility model relates to an air cushion type generator rotor extraction tool. An air cushion is hollow in the middle and is provided with a sleeve, the sleeve is communicated with an external air source through an air pipe, the bottom of the sleeve is an air outlet, the top of the sleeve is sealed, and the bottom of the air cushion is provided with an exhaust hole corresponding to the air outlet; the cushion block is fixedly arranged at the bottom of the air cushion and provided with a reamed hole corresponding to the exhaust hole. Wooden saddles are arranged at the tops of the air cushions; the air cushion and the wooden saddle are both of an arc-shaped structure matched with the outer diameter of the rotor. The top of the cushion block is an arc-shaped surface matched with the air cushion, and the bottom of the cushion block is a plane. The rotor is placed on the wooden saddle, an external air source is started, high-pressure air is introduced into the air pipe, and the high-pressure air is exhausted from the air outlet of the sleeve, sequentially penetrates through the exhaust hole and the reamed hole and is hit on the slide way, so that the cushion block lifts the air cushion, the wooden saddle and the rotor are suspended, and the plane structure at the bottom of the cushion block is in surface contact with the slide way, so that the contact area is large; a high-pressure air layer formed on the slide way is more stable, and deviation is not prone to occurring when the direction of the rotor is controlled.

Description

Technical Field

[0001] This utility model relates to the field of generator technology, and in particular to an air cushion type generator rotor extraction tool. Background Technology

[0002] Application No. 201320108113.4 discloses an air cushion for motor rotor installation. The air cushion for motor rotor installation greatly reduces the friction between the motor rotor and stator during installation, shortens the installation time, and improves installation reliability and safety.

[0003] However, since the application No. 201320108113.4 discloses that "the top of the air cushion body is fixed with a partition and both are arc-shaped to match the motor rotor", when the generator rotor is pulled out, if an arc-shaped air cushion is used on the slide, the bottom of the arc-shaped air cushion is in line contact with the surface of the slide, the contact area is small, it is difficult to control the direction of pulling the rotor, and it is easy to deviate. Utility Model Content

[0004] The technical problem to be solved by this utility model is to study an air cushion type generator rotor tool. The bottom of the air cushion is flat, with a large contact area with the slide, making it easy to control the direction of the rotor and preventing it from deviating.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A pneumatic generator rotor tool includes an air cushion, a pad block, and a wooden saddle. The air cushion is hollow in the middle and has a sleeve. The sleeve is connected to an external air source through an air pipe. The bottom of the sleeve is an air outlet, and the top of the sleeve is sealed. An exhaust hole is provided at the bottom of the air cushion corresponding to the air outlet. The pad block is fixedly installed at the bottom of the air cushion, and the pad block has an enlarged hole corresponding to the exhaust hole. A wooden saddle is provided at the top of the air cushion. Both the air cushion and the wooden saddle are arc-shaped structures adapted to the outer diameter of the rotor. The top of the pad block is an arc-shaped surface adapted to the air cushion, and the bottom is a flat surface.

[0007] The beneficial effects of this utility model are as follows: when the rotor is placed on the wooden saddle, the external air source is started, and high-pressure gas is introduced into the air pipe. The high-pressure gas is discharged from the air outlet of the sleeve, passes through the exhaust hole and the expansion hole in sequence, and hits the slide, so that the pad block supports the air cushion, the wooden saddle and the rotor to suspend. The planar structure at the bottom of the pad block is in surface contact with the slide, with a large contact area. The high-pressure air layer formed on the slide is more stable, and it is not easy for the rotor to deviate when controlling the direction.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, two sets of sleeves and air pipes are spaced apart in the middle of the air cushion, and two exhaust holes are opened at the bottom of the air cushion accordingly; the air inlet ends of the two air pipes are connected to the diversion module, and the diversion module is equipped with quick connectors.

[0010] Furthermore, a positioning pin is provided at the top of the sleeve, and a positioning hole is provided at the bottom of the wooden saddle corresponding to the positioning pin.

[0011] Furthermore, multiple lifting lugs are provided on both sides of the outer side of the air cushion, and straps are wrapped around the lifting lugs.

[0012] Furthermore, multiple reinforcing ribs are provided on both sides of the wooden saddle.

[0013] Furthermore, the outer diameter of the enlarged hole is larger than that of the vent hole, and both the enlarged hole and the vent hole are tapered holes.

[0014] Furthermore, the vent of the sleeve can be threadedly connected to an external plug. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an air cushion type generator rotor tool according to the present invention. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of an air cushion type generator rotor tool according to the present invention. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the structure of an air cushion type generator rotor tool according to the present invention. Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the structure of an air cushion type generator rotor tool according to the present invention. Figure 4 ;

[0019] Figure 5 This is a schematic diagram of the structure of an air cushion type generator rotor tool according to the present invention. Figure 5 .

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Air cushion; 11. Exhaust port; 2. Pad block; 21. Enlarged hole; 3. Wooden saddle; 31. Positioning hole; 4. Sleeve; 5. Positioning pin; 6. Air pipe; 61. Diverter module; 7. Lifting lug; 8. Binding strap; 9. Reinforcing rib; 10. Rotor. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0023] like Figures 1-5As shown in Embodiment 1 of this utility model, a pneumatic generator rotor tool includes an air cushion 1, a pad block 2, and a wooden saddle 3. The air cushion 1 is hollow in the middle and has a sleeve 4. The sleeve 4 is connected to an external air source through an air pipe 6. The bottom of the sleeve 4 is an air outlet, and the top of the sleeve 4 is sealed. The bottom of the air cushion 1 has an exhaust hole 11 corresponding to the air outlet. The pad block 2 is fixedly installed at the bottom of the air cushion 1, and the pad block 2 has an enlarged hole 21 corresponding to the exhaust hole 11. The top of the air cushion 1 has a wooden saddle 3. Both the air cushion 1 and the wooden saddle 3 are arc-shaped structures adapted to the outer diameter of the rotor 10. The top of the pad block 2 is an arc-shaped surface adapted to the air cushion 1, and the bottom is a flat surface.

[0024] The rotor 10 is placed on the wooden saddle 3, the external air source is started, and high-pressure gas is introduced into the air pipe 6. The high-pressure gas is discharged from the air outlet of the sleeve 4, passes through the exhaust hole 11 and the expansion hole 21 in sequence, and hits the slide, so that the pad block 2 lifts the air cushion 1, the wooden saddle 3 and the rotor 10 to suspend. The planar structure at the bottom of the pad block 2 is in surface contact with the slide, with a large contact area, and the high-pressure air layer formed on the slide is more stable, making it less likely to deviate when controlling the direction of the rotor 10.

[0025] This utility model, in its second embodiment, discloses an air cushion type generator rotor tool. Based on embodiment 1, the air cushion 1 has two sets of sleeves 4 and air pipes 6 spaced apart in the middle, and two symmetrical exhaust holes 11 are correspondingly provided at the bottom of the air cushion 1. The air inlet ends of both air pipes 6 are connected to a diversion module 61, which is equipped with a quick connector. By using the diversion module 61 with two sets of sleeves 4 and air pipes 6, and two exhaust holes 11, the air cushion 1 and the pad block 2 are suspended more stably, increasing their levitation capacity. The quick connector can be directly connected to the gas cylinder outlet, facilitating installation and disassembly.

[0026] This utility model, embodiment 3, provides an air cushion type generator rotor tool. Based on embodiment 1, the top of the sleeve 4 is provided with a positioning pin 5, and the bottom of the wooden saddle 3 is provided with a positioning hole 31 corresponding to the positioning pin 5. The positioning pin 5 can be inserted into the positioning hole 31. Through the cooperation between the positioning pin 5 and the positioning hole 31, the wooden saddle 3 is limited on the air cushion 1, making it convenient to limit the positioning when fixing and installing the wooden saddle 3 and the air cushion 1.

[0027] This utility model, in its fourth embodiment, provides an air-cushion type generator rotor tool. Based on embodiment 1, multiple lifting lugs 7 are provided on both sides of the outer surface of the air cushion 1, and binding straps 8 are wrapped around the lifting lugs 7. The binding straps 8 further tighten the rotor 10, the wooden saddle 3, and the air cushion 1 to prevent the rotor 10 from shaking.

[0028] This utility model, in embodiment 5, provides an air-cushion type generator rotor tool. Based on embodiment 1, multiple reinforcing ribs 9 are provided on both sides of the wooden saddle 3. This improves the supporting strength of the wooden saddle 3 and prevents it from cracking when supporting the rotor 10.

[0029] This utility model, in its sixth embodiment, provides an air cushion type generator rotor tool. Based on embodiment 1, the outer diameter of the enlarged hole 21 is larger than that of the exhaust hole 11, and both the enlarged hole 21 and the exhaust hole 11 are tapered holes. This allows high-pressure gas to form an air film at the enlarged hole 21, which is beneficial for the suspension of the air cushion 1 and the pad block 2.

[0030] This utility model, embodiment 7, provides an air cushion type generator rotor tool. Based on any one of embodiments 1 to 6, the air outlet of the sleeve 4 can be threadedly connected to an external plug. By screwing in the plug to block the air outlet, and connecting to an external air source, it is possible to check for leaks in the air pipe 6 and the air cushion 1.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic generator rotor extraction tool, characterized in that, The device includes an air cushion (1), a pad (2), and a wooden saddle (3). The air cushion (1) is hollow in the middle and has a sleeve (4). The sleeve (4) is connected to an external air source through an air pipe (6). The bottom of the sleeve (4) is an air outlet, and the top of the sleeve (4) is sealed. The bottom of the air cushion (1) is provided with an exhaust hole (11) corresponding to the air outlet. The pad (2) is fixedly installed at the bottom of the air cushion (1), and the pad (2) has an enlarged hole (21) corresponding to the exhaust hole (11). The top of the air cushion (1) is provided with the wooden saddle (3). Both the air cushion (1) and the wooden saddle (3) are arc-shaped structures adapted to the outer diameter of the rotor (10). The top of the pad (2) is an arc-shaped surface adapted to the air cushion (1), and the bottom is a flat surface.

2. The air cushion type generator rotor tool according to claim 1, characterized in that, Two sets of sleeves (4) and air pipes (6) are spaced apart in the middle of the air cushion (1), and two exhaust holes (11) are opened at the bottom of the air cushion (1); the air inlet ends of the two air pipes (6) are connected to the diversion module (61), and the diversion module (61) is provided with a quick connector.

3. The air cushion type generator rotor tool according to claim 1, characterized in that, The top of the sleeve (4) is provided with a positioning pin (5), and the bottom of the wooden saddle (3) is provided with a positioning hole (31) corresponding to the positioning pin (5).

4. The air cushion type generator rotor tool according to claim 1, characterized in that, The air cushion (1) has multiple lifting lugs (7) on its outer sides, and the lifting lugs (7) are wrapped with straps (8).

5. The air cushion type generator rotor tool according to claim 1, characterized in that, The wooden saddle (3) has multiple reinforcing ribs (9) on both sides.

6. The air cushion type generator rotor tool according to claim 1, characterized in that, The outer diameter of the enlarged hole (21) is larger than that of the exhaust hole (11), and both the enlarged hole (21) and the exhaust hole (11) are tapered holes.

7. A pneumatic generator rotor tool according to any one of claims 1 to 6, characterized in that, The air outlet of the sleeve (4) can be threadedly connected to an external plug.

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