Permanent magnet motor rotation dragging device

Abstract

The invention provides a permanent magnet motor rotation dragging device which comprises a vertically-arranged end cover, a speed reducer is fixed to the middle of the end cover, cantilevers are symmetrically arranged on the two sides of the end cover, a supporting cross beam is arranged between the ends of the two cantilevers, and a motor providing a central axis with the speed reducer is supported on the supporting cross beam. A motor shaft of the motor is connected with the speed reducer through a flange rotating shaft and a coupler. According to the invention, the bearing abnormity and fault caused by dispatching can be reduced or reduced, the bearing maintenance cost is saved, and the product quality of the permanent magnet motor in the transportation process can be better ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of permanent magnet motor transportation, and in particular to a permanent magnet motor rotation dragging device. Background Art

[0002] Driven by national macroeconomic policies, the wind power industry continues to expand, while also placing increasing demands on reducing costs and increasing efficiency. Protecting process product quality is a key component of this reduction. Relying on technological innovation to achieve process quality protection is an inevitable requirement for improving product quality and an inevitable choice for enhancing the competitiveness of wind power companies and the entire wind power industry.

[0003] The use of permanent magnet motors to achieve rotary transportation is an important part of product quality protection through technological innovation. During shipment, a complete set of reliable rotary dragging methods and tooling is used to achieve low-speed rotation of the motor at 5rpm during transportation. Through technological innovation, real-time monitoring of rotation abnormalities during transportation is achieved to ensure product quality.

[0004] Currently, the most commonly used type is the fixed type, which uses bolts to tighten the N / D end bearing unit (radially and axially) and uses long screws to prevent circumferential rotation. Its disadvantages are: 1. When used on machines with heavy rotors, the fixed type may lack adequate protection, leading to frequent bearing failures; 2. The fixed type requires more detailed operations and is difficult to inspect and monitor, which can lead to bearing failures and hinder product quality assurance. Summary of the Invention

[0005] To solve the above problems, the present invention discloses a permanent magnet motor rotation traction device, which realizes the rotation shipment of the motor and can realize real-time monitoring of the rotation status. It can overcome the single-point fatigue damage to the bearing caused by periodic impact, reduce or avoid bearing problems or failures caused by shipment, and ensure product quality.

[0006] The specific plan is as follows: A permanent magnet motor rotary traction device includes a vertically arranged end cover, a reducer fixed in the middle of the end cover, cantilevers symmetrically provided on both sides, a supporting beam provided between the ends of the two cantilevers, a motor supported on the supporting beam and having a central axis aligned with the reducer, and a motor shaft of the motor connected to the reducer via a flange rotating shaft and a coupling.

[0007] Furthermore, the cantilever is perpendicular to the end cover, and the two cantilevers are on the same horizontal plane.

[0008] Furthermore, a waist-shaped groove for mounting a supporting beam is provided on the top surface of the end of the cantilever.

[0009] Furthermore, the flange rotating shaft is locked and fixed to the motor shaft, one end of the connecting shaft is connected to the flange rotating shaft, and the other end is connected to the reducer.

[0010] Furthermore, the method of using the device is: S1. Lock the left and right cantilevers onto the end caps, with the waist-shaped grooves of the cantilevers facing upwards. S2. Lock and fix the flange rotating shaft on the motor shaft, and install the coupling on the flange rotating shaft; S3. Install and fix the motor and reducer respectively; S4. Connect the reducer and coupling, and fix the motor support beam on the cantilever; S5. Connect the power supply, start the rotating drag device, set up the online monitoring device, and realize real-time monitoring of the rotating state.

[0011] The beneficial effects of the present invention are: 1. Reduce or minimize bearing abnormalities and failures caused by shipment, saving bearing maintenance costs.

[0012] 2. Better ensure the product quality of permanent magnet motors during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] List of reference numerals: 1-end cover, 2-cantilever, 3-support beam. DETAILED DESCRIPTION

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0016] As shown in the figure, the present application provides a permanent magnet motor rotation traction device, including a vertically arranged end cover, a reducer fixed in the middle of the end cover, cantilevers symmetrically provided on both sides, a supporting beam provided between the ends of the two cantilevers, and a motor with a central axis shared with the reducer supported on the supporting beam, and the motor shaft of the motor is connected to the reducer through a flange rotating shaft and a coupling.

[0017] In this embodiment, the cantilever is perpendicular to the end cover, and the two cantilevers are on the same horizontal plane; the top surface of the end of the cantilever is provided with a waist-shaped groove for installing the supporting beam.

[0018] In this embodiment, the flange rotating shaft is locked and fixed to the motor shaft, one end of the connecting shaft is connected to the flange rotating shaft, and the other end is connected to the reducer.

[0019] In this embodiment, the method of using the device is: S1. Lock the left and right cantilevers onto the end caps, with the waist-shaped grooves of the cantilevers facing upwards. S2. Lock and fix the flange rotating shaft on the motor shaft, and install the coupling on the flange rotating shaft; S3. Install and fix the motor and reducer respectively; S4. Connect the reducer and coupling, and fix the motor support beam on the cantilever; S5. Connect the power supply, start the rotating drag device, set up the online monitoring device, and realize real-time monitoring of the rotating state.

[0020] This invention addresses the issue of bearing protection during the shipment of permanent magnet wind turbines. The heavy rotors of permanent magnet wind turbines often lead to bearing damage and failure during shipment. During shipment, bearings must be protected against periodic impact damage. This rotating fixture can mitigate single-point fatigue damage to bearings caused by periodic impact, reducing or preventing bearing problems or failures during shipment.

[0021] The technical means disclosed in the solutions of the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A permanent magnet motor rotation driving device, characterized in that: It includes a vertically arranged end cover, a reducer is fixed in the middle of the end cover, cantilevers are symmetrically provided on both sides, a supporting beam is provided between the ends of the two cantilevers, and a motor with a central axis aligned with the reducer is supported on the supporting beam, and the motor shaft of the motor is connected to the reducer through a flange rotating shaft and a coupling.

2. A permanent magnet motor rotation driving device according to claim 1, characterized in that: The cantilever is perpendicular to the end cover, and the two cantilevers are on the same horizontal plane.

3. A permanent magnet motor rotation driving device according to claim 1, characterized in that: The top surface of the end of the cantilever is provided with a waist-shaped groove for installing a supporting beam.

4. A permanent magnet motor rotation driving device according to claim 1, characterized in that: The flange rotating shaft is locked and fixed to the motor shaft, one end of the connecting shaft is connected to the flange rotating shaft, and the other end is connected to the reducer.

5. The permanent magnet motor rotation driving device according to claim 1, characterized in that: The method of using the device is: S1. Lock the left and right cantilevers onto the end caps, with the waist-shaped grooves of the cantilevers facing upwards. S2. Lock and fix the flange rotating shaft on the motor shaft, and install the coupling on the flange rotating shaft; S3. Install and fix the motor and reducer respectively; S4. Connect the reducer and coupling, and fix the motor support beam on the cantilever; S5. Connect the power supply, start the rotating drag device, set up the online monitoring device, and realize real-time monitoring of the rotating state.

Images