CN219142918U

CN219142918U - Vertical test tool for semi-direct-drive wind driven generator

Info

Publication number: CN219142918U
Application number: CN202223250330.5U
Authority: CN
Inventors: 丁晓辉; 曾进; 王浩; 王建裕
Original assignee: SEC Electric Machinery Co Ltd
Current assignee: SEC Electric Machinery Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-06-06
Anticipated expiration: 2032-12-05

Abstract

The utility model relates to the field of semi-direct-drive wind generators, in particular to a vertical test fixture for a semi-direct-drive wind generator, which comprises a support frame, wherein a stator seat and a rotor seat are arranged on the support frame at intervals, and a stator is fixed on the stator seat in a mode that an axis is parallel to a horizontal line; the rotor seat comprises a hollow shaft, a connecting flange, a bearing sleeve, a bearing inner sleeve, a roller bearing, a deep groove ball bearing and a bearing temperature sensor, wherein the hollow shaft is vertically arranged, the bearing inner sleeve and the bearing sleeve are sequentially arranged on the outer ring of the hollow shaft, the bearing sleeve is fixed on the support frame, the roller bearing is arranged between the bearing inner sleeve and the hollow shaft, the deep groove ball bearing is arranged between the hollow shaft and the bearing sleeve, the roller bearing and the deep groove ball bearing are respectively provided with the bearing temperature sensor, the connecting flange is fixed at the top end of the hollow shaft, and the rotor is fixed with the connecting flange through the test flange. The utility model has simple structure, easy disassembly and assembly and strong universality.

Description

Vertical test tool for semi-direct-drive wind driven generator

Technical Field

The utility model relates to the field of semi-direct-drive wind generators, in particular to a vertical test fixture for a semi-direct-drive wind generator.

Background

The semi-direct-drive wind driven generator is large in batch, each motor needs to be subjected to factory test, the motor needs to be fixed on a test tool during the test, the traditional mode of carrying out the motor test in a horizontal state is adopted, the assembly and disassembly tool is large in quantity, and meanwhile, the shaft and the matched components are easy to deform under pressure, so that a great amount of time is consumed by the increased auxiliary measures for preventing the deformation of parts.

Disclosure of Invention

The utility model aims to overcome the defects, and provides a vertical test tool for a semi-direct-drive wind driven generator, which solves the problems of complex structure and inconvenient disassembly and assembly of the traditional test tool.

According to the technical scheme, the vertical test fixture for the semi-direct-drive wind driven generator comprises a support frame, wherein a stator seat and a rotor seat are arranged on the support frame at intervals and used for fixing a stator and a rotor of the generator, and the stator is fixed on the stator seat in a mode that an axis is parallel to a horizontal line;

the rotor seat comprises a hollow shaft, a connecting flange, a bearing sleeve, a bearing inner sleeve, a roller bearing, a deep groove ball bearing and a bearing temperature sensor, wherein the hollow shaft is vertically arranged, the bearing inner sleeve and the bearing sleeve are sequentially arranged on the outer ring of the hollow shaft, the bearing sleeve is fixed on the support frame, the roller bearing is arranged between the bearing inner sleeve and the hollow shaft, the deep groove ball bearing is arranged between the hollow shaft and the bearing sleeve, the roller bearing and the deep groove ball bearing are respectively provided with the bearing temperature sensor, the connecting flange is fixed at the top end of the hollow shaft, and the rotor is fixed with the connecting flange through the test flange.

As a further improvement of the utility model, the roller bearing is arranged at the upper end of the hollow shaft and is used for bearing axial force and radial force generated by motor rotation, and the deep groove ball bearing is arranged at the lower end of the hollow shaft and is used for bearing radial force generated by motor rotation.

As a further improvement of the utility model, the roller bearing is an angular contact roller bearing.

As a further improvement of the utility model, the roller bearing is a tapered roller bearing.

As a further improvement of the utility model, both the roller bearing and the deep groove ball bearing are grease lubricated.

As a further improvement of the utility model, the connection flange and the bearing sleeve are sealed by an oil baffle plate, and the lower end of the bearing sleeve is sealed by a bearing bottom cover.

As a further improvement of the utility model, the sealing mode of the oil baffle plate is gap sealing.

As a further improvement of the utility model, the bearing bottom cover is a rubber pad.

As a further improvement of the utility model, one side of the supporting frame is fixed with a vertically arranged backing plate.

The utility model has the beneficial effects that:

the structure is simple, the assembly and the disassembly are easy, and the man-hour required by the assembly and the disassembly of the tested motor in the test is greatly saved, thereby reducing the man-hour cost.

According to the characteristics of short single operation time and high assembly and disassembly frequency of the test motor, the combined bearing adopts a grease lubrication mode, an oil inlet pipe and an oil outlet pipe can be omitted, the bearing sealing structure is simplified, and lubricating grease is only required to be supplemented to the bearing regularly.

The stator seat is formed by reforming the horizontal bearings produced in batch, a large number of common parts of the original horizontal bearings are utilized, and the material cost is saved to a certain extent.

The test tool has good universality, and the support frame and the test flange can still be used continuously when the motor needs to be subjected to a horizontal state test.

Drawings

Fig. 1 is an overall schematic of the present utility model.

Fig. 2 is a schematic structural view of a stator base according to the present utility model.

FIG. 3 is a comparative schematic of the test conducted with the present utility model in a horizontal state.

Reference numerals illustrate: 1. a stator; 2. a rotor; 3. a support frame; 4. a test flange; 5. a stator base; 6. a bearing sleeve; 7. a bearing inner sleeve; 8. an oil baffle plate; 9. a bearing bottom cover; 10. a hollow shaft; 11. a connecting flange; 12. a roller bearing; 13. deep groove ball bearings; 14. a bearing temperature sensor; 15. a rotor seat; 16. a backing plate.

Detailed Description

The utility model will be further described with reference to examples of embodiments in the accompanying drawings, in which:

as shown in the figure, the vertical test fixture of the semi-direct-drive wind driven generator comprises a support frame 3, wherein a stator seat 5 and a rotor seat 15 are arranged on the support frame 3 at intervals and are used for fixing a stator 1 and a rotor 2 of the generator, and the stator 1 is fixed on the stator seat 5 in a mode that the axis is parallel to a horizontal line;

the rotor seat 15 comprises a hollow shaft 10, a connecting flange 11, a bearing sleeve 6, a bearing inner sleeve 7, a roller bearing 12, a deep groove ball bearing 13 and a bearing temperature sensor 14, wherein the hollow shaft 10 is vertically arranged, the bearing inner sleeve 7 and the bearing sleeve 6 are sequentially arranged on the outer ring of the hollow shaft 10, the bearing sleeve 6 is fixed on the support frame 3, the roller bearing 12 is arranged between the bearing inner sleeve 7 and the hollow shaft 10, the deep groove ball bearing 13 is arranged between the hollow shaft 10 and the bearing sleeve 6, the roller bearing 12 and the deep groove ball bearing 13 are respectively provided with the bearing temperature sensor 14, the connecting flange 11 is fixed at the top end of the hollow shaft 10, and the rotor 2 is fixed with the connecting flange 11 through the test flange 4.

The roller bearing 12 is arranged at the upper end of the hollow shaft 10 and is used for bearing all axial force and half radial force generated by motor rotation, and the deep groove ball bearing 13 is arranged at the lower end of the hollow shaft 10 and is used for bearing half radial force generated by motor rotation; the roller bearing 12 is an angular contact roller bearing; the roller bearing 12 is a tapered roller bearing, and the angular contact ball bearing is suitable for the conditions of higher rotating speed and relatively small axial force; the tapered roller bearing is suitable for the conditions of lower rotating speed and larger axial force; FIG. 2 illustrates a tapered roller bearing for use with the tool.

The roller bearing 12 and the deep groove ball bearing 13 are both lubricated by grease, for example, an oil lubrication mode is adopted for testing, so that an oil inlet and outlet pipeline is required to be assembled and disassembled, and the bearing sealing structure is more complex. The grease lubrication mode is adopted, an oil inlet pipe and an oil outlet pipe can be omitted, the bearing sealing structure is simplified, and grease is only needed to be supplemented to the bearing regularly.

The connecting flange 11 and the bearing sleeve 6 are sealed by an oil baffle plate 8, and the lower end of the bearing sleeve 6 is sealed by a bearing bottom cover 9; the sealing mode of the oil baffle plate 8 is gap sealing; the bearing bottom cover 9 is a rubber pad.

One side of the supporting frame 3 is fixed with a vertically arranged backing plate 16, and for a motor with smaller mass or a motor with a special structure, the tool can be rotated, the backing plate 16 is supported on the ground, and the motor is used in a horizontal test.

The working process of the utility model is as follows:

after the stator and the rotor of the motor are fixed on the test tool, sensors for temperature measurement, vibration measurement, speed measurement and the like are installed, the tested motor runs after the stator is electrified by the main cable, various data are monitored in the running process, a test report is generated, a factory test is completed, the stator and the rotor of the motor are detached from the test tool after the test is completed, and the test tool is used for the next motor continuously.

Claims

1. The vertical test fixture for the semi-direct-drive wind driven generator comprises a support frame (3), wherein a stator seat (5) and a rotor seat (15) are arranged on the support frame (3) at intervals and are used for fixing a stator (1) and a rotor (2) of the generator, and the vertical test fixture is characterized in that the stator (1) is fixed on the stator seat (5) in a mode that an axis is parallel to a horizontal line;

the rotor seat (15) comprises a hollow shaft (10), a connecting flange (11), a bearing sleeve (6), a bearing inner sleeve (7), a roller bearing (12), a deep groove ball bearing (13) and a bearing temperature sensor (14), wherein the hollow shaft (10) is vertically arranged, the bearing inner sleeve (7) and the bearing sleeve (6) are sequentially arranged on the outer ring of the hollow shaft (10), the bearing sleeve (6) is fixed on the support frame (3), the roller bearing (12) is arranged between the bearing inner sleeve (7) and the hollow shaft (10), the deep groove ball bearing (13) is arranged between the hollow shaft (10) and the bearing sleeve (6), the bearing temperature sensor (14) is respectively arranged on the roller bearing (12) and the deep groove ball bearing (13), the connecting flange (11) is fixed on the top end of the hollow shaft (10), and the rotor (2) is fixed with the connecting flange (11) through a test flange (4).

2. The vertical test fixture for the semi-direct-drive wind driven generator according to claim 1, wherein the roller bearing (12) is arranged at the upper end of the hollow shaft (10) and is used for bearing axial force and radial force generated by motor rotation, and the deep groove ball bearing (13) is arranged at the lower end of the hollow shaft (10) and is used for bearing radial force generated by motor rotation.

3. A vertical test fixture for a semi-direct drive wind turbine as claimed in claim 2, wherein said roller bearing (12) is an angular contact roller bearing.

4. A vertical test fixture for a semi-direct drive wind turbine according to claim 2, wherein the roller bearing (12) is a tapered roller bearing.

5. The vertical test fixture for the semi-direct-drive wind driven generator as claimed in claim 1, wherein the roller bearing (12) and the deep groove ball bearing (13) are lubricated by grease.

6. The vertical test fixture for the semi-direct-drive wind driven generator according to claim 1, wherein the connecting flange (11) and the bearing sleeve (6) are sealed through an oil baffle (8), and the lower end of the bearing sleeve (6) is sealed through a bearing bottom cover (9).

7. The vertical test fixture for the semi-direct-drive wind driven generator as claimed in claim 6, wherein the sealing mode of the oil baffle (8) is gap sealing.

8. The vertical test fixture for the semi-direct-drive wind driven generator as claimed in claim 6, wherein the bearing bottom cover (9) is a rubber pad.

9. The vertical test fixture for the semi-direct-drive wind driven generator as claimed in claim 1, wherein a base plate (16) which is vertically arranged is fixed on one side of the supporting frame (3).