A wind turbine variable pitch integrated machine structure

Abstract

The present technology discloses a wind turbine variable pitch integrated machine structure, including a motor body, a brake, a brake cover, an encoder adapter, an encoder, a support plate, a lead wire, an anti-falling steel rope, a driver, a radiator and a connector; the outer ring of the brake is connected to the rear flange of the motor body, and the inner ring of the brake is connected to the rotating shaft of the motor body; the encoder adapter is connected to the outer ring of the brake; the outer ring of the encoder is connected to the encoder adapter, and the inner ring of the encoder is connected to the rotating shaft; the brake cover is connected to the rear flange; the support plate is connected to the brake cover; the driver is connected to the radiator, and the radiator is connected to the brake cover; one end of the anti-falling steel rope is connected to the support plate, and the other end is connected to the inner side of the driver. The structure of the present technology is very compact, and the brake, encoder and driver are all installed on the motor body, which is convenient for later maintenance; compared with the existing technical solutions under the condition of the same performance output, the cost is low and the on-site wiring is simple.

Description

Technical Field

[0001] The present technology relates to the wind power industry and the field of servo motors, and specifically to a wind power variable pitch integrated machine structure. Background Art

[0002] In the existing motor technical solutions for wind turbine pitch control, no solution that integrates the motor and the drive has been found. The motor and the drive used in the existing wind turbine pitch control are independent units, and the drive is connected to the motor through an external power line and a signal line to control the operation of the motor. The existing technical solution of the independent structure of the motor and the drive is costly and the on-site wiring is cumbersome. Summary of the invention

[0003] The technical problem to be solved by the present technology is to provide a wind turbine variable pitch integrated machine structure in view of the deficiencies of the above-mentioned prior art. The present wind turbine variable pitch integrated machine structure adopts an integrated solution of motor and driver, and the structure is very compact. The motor brake, encoder and driver are all modularly installed on the motor body, which greatly facilitates the subsequent maintenance. Under the condition of the same performance output, compared with the existing technical solution of independent separate structures of motor and driver, the cost is low and the on-site wiring is simple.

[0004] In order to achieve the above technical objectives, the technical solution adopted by this technology is:

[0005] A wind turbine variable pitch integrated machine structure, including a motor body, a brake, a brake cover, an encoder adapter, an encoder, a support plate, a lead wire, an anti-falling steel rope, a driver, a radiator and a connector; the outer ring of the brake is fixedly connected to the rear flange of the motor body, and the inner ring of the brake is fixedly connected to the rotating shaft of the motor body; the encoder adapter is fixedly connected to the outer ring of the brake; the outer ring of the encoder is fixedly connected to the encoder adapter, and the inner ring of the encoder is fixedly connected to the rotating shaft; the brake cover is fixedly connected to the rear flange; the support plate is fixedly connected to the brake cover; the rear flange, the brake and the support plate are fixedly connected to the rear flange, the brake and the support plate. A hole is opened, the lead wires of the motor body pass through the holes opened on the rear flange, the brake and the support plate to be electrically connected to the driver, and the lead wires of the brake and the encoder pass through the holes opened on the support plate to be electrically connected to the driver; the driver is fixedly connected to the radiator, and the radiator is fixedly connected to the brake cover; one end of the anti-fall steel rope is fixedly connected to the support plate, and the other end is fixedly connected to the inner side of the driver; the connector is fixedly connected to the radiator and the connector is electrically connected to the driver; the brake, encoder adapter, encoder, support plate, anti-fall steel rope and driver are all located between the rear flange, the brake cover and the radiator.

[0006] As a technical solution for further improvement of the present technology, the motor body includes a front flange, a stator, a rotor and a rear flange, a stator housing is provided on the outside of the stator, the front flange is fixedly connected to the front end of the stator housing, the rear flange is fixedly connected to the rear end of the stator housing, the rotor is located on the inner side of the stator, and a rotating shaft is provided in the inner hole of the rotor, the rotating shaft is rotatably connected to the front flange through a bearing and the front end of the rotating shaft extends to the outside of the front flange, the rotating shaft is rotatably connected to the rear flange through a bearing and the rear end of the rotating shaft extends to the outside of the rear flange.

[0007] As a technical solution for further improvement of the present technology, the outer ring of the brake is fixedly connected to the rear flange of the motor body by screws; the encoder adapter is fixedly connected to the outer ring of the brake by screws; the outer ring of the encoder is fixedly connected to the encoder adapter by screws, and the inner ring of the encoder is fixedly connected to the rotating shaft by screws.

[0008] As a technical solution for further improving the present technology, the brake cover is fixedly connected to the rear flange by four evenly distributed long screws; the support plate is fixedly connected to the brake cover by screws.

[0009] As a technical solution for further improvement of the present technology, cable fixing clamps are fixedly connected on both sides of the surface of the support plate by screws, the stator lead wires of the motor body pass through the holes in the rear flange, the brake and the support plate and are tightened by the cable fixing clamps on one side of the support plate, and the lead wires of the brake and the encoder pass through the holes in the support plate and are tightened by the cable fixing clamps on the other side of the support plate.

[0010] As a technical solution for further improvement of the present technology, the driver is fixedly connected to the radiator by screws, and the radiator is fixedly connected to the brake cover by four evenly distributed anti-drop screws; the connector is fixedly connected to the radiator by screws.

[0011] As a technical solution for further improving the present technology, one end of the anti-falling steel rope is fixedly connected to the support plate by screws, and the other end is fixedly connected to the inner side of the driver by screws.

[0012] As a technical solution for further improvement of the present technology, it also includes a fixing strip and a handle, wherein the outer surfaces of the stator housing, the rear flange and the brake cover are provided with grooves that are connected to each other and the grooves are arranged along the axial direction of the motor, the fixing strip is slidably connected to the grooves and a threaded hole is provided on the surface of the fixing strip; the handle is provided with a mounting hole, and the mounting hole on the handle is connected to the threaded hole on the fixing strip by a screw and the screw can lock the fixing strip in the grooves on the outer surfaces of the stator and the brake cover.

[0013] As a technical solution for further improving the present technology, grooves communicating with each other are provided on both sides of the outer surfaces of the stator housing, the rear flange and the brake cover, and two fixing strips are provided in the groove on each side.

[0014] The beneficial effects of this technology are:

[0015] 1) The stator of the integrated motor adopts a concentrated winding solution to make the motor structure compact and reduce the weight of the motor.

[0016] 2) The integrated machine brake is installed on the rear flange of the motor.

[0017] 3) The brake used in this motor is designed with a hole for installing the encoder adapter. The encoder adapter and the encoder can be installed inside the brake, effectively reducing the length of the integrated machine.

[0018] 4) A support plate is provided at the rear end of the integrated machine brake to bind the power cord and signal cord (i.e. lead-out cord) coming out of the motor, effectively reducing the possibility of the motor cable being damaged or the wiring plug being loosened due to abrasions or reciprocating vibrations inside the motor.

[0019] 5) In addition to being fixed to the motor part by screws, the integrated driver part is also provided with a steel wire rope (i.e., an anti-fall steel rope) to connect the driver part and the motor part together, so that when the driver is repaired later, there is no need to hold the driver by hand, and the brake can be hung on the motor part for repair.

[0020] 6) The driver part (including the driver, heat sink, connector and other structures) on the integrated machine is fixedly connected to the brake cover by anti-drop screws. When the driver is subsequently maintained, the driver can be taken out without completely removing the screws, which makes it less likely to cause the screws to be lost.

[0021] 7) The existing technical solution of separate motor and driver structure is more expensive than this technology under the condition of equal performance output, and the on-site wiring is more complicated. This technology adopts the integrated solution of motor and driver, and the motor adopts the centralized winding solution. The structure is very compact, and the motor brake, encoder feedback device and driver are modularly installed on the motor body, which greatly facilitates the subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a cross-sectional view of the structure of this technology.

[0023] Figure 2 Right side view of the structure that hides the brake cover, drive, radiator, etc. for this technology.

[0024] Figure 3 This is the right view of the technical structure.

[0025] Figure 4 This is a three-dimensional diagram of the technical structure.

[0026] Figure 5 This is a schematic diagram of the anti-fall steel rope structure of this technology.

[0027] Figure 6 This is a schematic diagram of the anti-slip screw structure of this technology. DETAILED DESCRIPTION

[0028] The following is based on the attached Figure 1-6 The specific implementation methods of this technology are further described as follows:

[0029] A wind turbine variable pitch motor and drive integrated structure, the structure is shown in Figures 1 to 4 , including front flange 1, stator 2, rotor 3, rear flange 4, brake 5, brake cover 6, rotating shaft 7, encoder adapter 8, encoder 9, support plate 10, lead wires 11 of motor, brake and encoder, cable fixing clamp 12, anti-falling steel rope 13, driver 14, radiator 15, connector 16, long screw 17 and anti-slip screw 18. The front flange 1, stator 2, rotor 3, rotating shaft 7 and rear flange 4 constitute the motor body; the outer ring of brake 5 is fixed to the rear flange 4 by screws, and the inner ring of brake 5 is fixed to the rotating shaft 7; encoder adapter 8 is fixed to the outer ring of brake 5 by screws; the outer ring of encoder 9 is fixed to the encoder adapter 8 by screws, and the inner ring of encoder 9 is fixed to the rotating shaft 7 by screws; brake cover 6 is fixed to the rear flange 4 by 4 evenly distributed long screws 17; support plate 10 is fixed to brake cover 6 by screws; rear flange 4 , the brake 5 and the support plate 10 are provided with holes, the lead wires 11 of the motor body pass through the holes opened on the rear flange 4, the brake 5 and the support plate 10, and the lead wires 11 of the brake 5 and the encoder 9 pass through the holes opened on the support plate 10, and are clamped by the cable fixing clamp 12, and the cable fixing clamp 12 is fixed to the support plate 10 by screws to achieve the purpose of fixing the cable position; the driver 14 is fixed to the radiator 15 by screws, and the radiator 15 is fixed to the brake cover 6 by 4 evenly distributed anti-slip screws 18. The schematic diagram of the anti-slip screws is shown in Figure 6 ; Schematic diagram of anti-falling steel rope 13 is shown in Figure 5 One end is fixed to the support plate 10 by screws, and the other end is fixed to the inner side of the driver 14 by screws; the connector 16 is fixed to the radiator 15 by screws; the fixing strip 19 is placed on the grooves on the periphery of the stator 2 and the brake cover 6, and threaded holes are processed on its surface, so that the fixing strip 19 can move freely along the axial direction of the motor; the handle 20 is fixed to the surface of the stator 2 and the brake cover 6 by screws and threaded holes on the fixing strip 19, and the installation position of the handle 20 is determined by adjusting the axial position of the fixing strip 19.

[0030] In the present technology, the stator 2 is composed of a stator assembly and a stator housing, and the rotor 3 is composed of a rotor assembly and a rotating shaft.

[0031] The assembly process is as follows: the front flange 1 is fixed to the rotating shaft 7 of the rotor 3 through the bearing to form a shaft assembly, and the front flange 1 is fixed to the outer ring of the bearing by means of the bearing gland and the front flange locking method; the rear flange 4 is fixed to the rear end of the stator housing of the stator 2 by screws, and then the shaft assembly is fixed to the front end of the stator 2 by screws to form the motor body. The brake 5 is fixed to the rear flange 4 by screws, the encoder adapter 8 is fixed to the brake 5 by screws, and then the encoder 9 is fixed to the encoder adapter 8 by screws. The brake cover 6 is fixed to the rear flange 4 by four evenly distributed long screws 17, and then the support plate 10 is fixed to the brake cover 6 by screws, and the power lead wire 11 of the stator 2, the lead wire 11 of the brake 5 and the encoder 9 are respectively clamped by the cable fixing clamp 12 and placed on both sides of the support plate 10, and the cable fixing clamp 12 is fixed to the support plate 10 by screws to fix the power lead wire 11 of the stator 2, the lead wire 11 of the brake 5 and the encoder 9. The four fixing bars 19 are respectively inserted into the grooves on both sides of the stator 2 and the brake cover 6, and then the handle 20 is fixed to the fixing bars 19 on both sides by screws. The driver 14 is fixed to the radiator 15 by screws, and the connector 16 is installed on the radiator 15 to form a driver assembly. Then, the stator 2 power lead 11, the brake 5 and the encoder 9 lead 11 are plugged into the driver. At the same time, one end of the anti-fall steel rope 13 is fixed to the support plate 10 by screws, and the other end is fixed to the inner side of the driver assembly by screws. The driver assembly is then fixed to the brake cover 6 by four evenly distributed anti-slip screws 18, and the brake cover 6 is fixedly connected to the rear flange 4 by four evenly distributed long screws 17. In this way, the assembly of the entire integrated machine is completed.

[0032] The protection scope of the present technology includes but is not limited to the above embodiments. The protection scope of the present technology shall be based on the claims. Any replacement, deformation, and improvement of the present technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present technology.

Claims

1. A wind turbine variable pitch integrated machine structure, comprising a motor body, characterized in that: It also includes a brake, a brake cover, an encoder adapter, an encoder, a support plate, an anti-falling steel rope, a driver, a radiator, a connector, a fixing strip and a handle; the outer ring of the brake is fixedly connected to the rear flange of the motor body, and the inner ring of the brake is fixedly connected to the rotating shaft of the motor body; the encoder adapter is fixedly connected to the outer ring of the brake; the outer ring of the encoder is fixedly connected to the encoder adapter, and the inner ring of the encoder is fixedly connected to the rotating shaft; the brake cover is fixedly connected to the rear flange; the support plate is fixedly connected to the brake cover; the rear flange, the brake and the support plate are provided with holes, and the guide The outgoing wires pass through the holes opened on the rear flange, the brake and the support plate to be electrically connected to the driver, and the lead wires of the brake and the encoder pass through the holes opened on the support plate to be electrically connected to the driver; the driver is fixedly connected to the radiator, and the radiator is fixedly connected to the brake cover; one end of the anti-falling steel rope is fixedly connected to the support plate, and the other end is fixedly connected to the inner side of the driver; the connector is fixedly connected to the radiator and the connector is electrically connected to the driver; the brake, encoder adapter, encoder, support plate, anti-falling steel rope and driver are all located in the space surrounded by the rear flange, the brake cover and the radiator; The motor body comprises a front flange, a stator, a rotor and a rear flange, a stator housing is arranged outside the stator, the front flange is fixedly connected to the front end of the stator housing, the rear flange is fixedly connected to the rear end of the stator housing, the rotor is located inside the stator, a rotating shaft is arranged in the inner hole of the rotor, the rotating shaft is rotatably connected to the front flange through a bearing, and the front end of the rotating shaft extends outward from the outside of the front flange, the rotating shaft is rotatably connected to the rear flange through a bearing, and the rear end of the rotating shaft extends outward from the outside of the rear flange; The outer ring of the brake is fixedly connected to the rear flange of the motor body by screws; the encoder adapter is fixedly connected to the outer ring of the brake by screws; the outer ring of the encoder is fixedly connected to the encoder adapter by screws, and the inner ring of the encoder is fixedly connected to the rotating shaft by screws; The brake cover is fixedly connected to the rear flange by four evenly distributed long screws; the support plate is fixedly connected to the brake cover by screws; Cable fixing clamps are fixedly connected to both sides of the support plate surface by screws, and the lead wires of the stator of the motor body pass through the holes opened on the rear flange, the brake and the support plate and are clamped with the cable fixing clamp on one side of the support plate, and the lead wires of the brake and the encoder pass through the holes opened on the support plate and are clamped with the cable fixing clamp on the other side of the support plate; The outer surfaces of the stator housing, the rear flange and the brake cover are all provided with grooves that are connected to each other and are arranged along the axial direction of the motor. The fixing strip is slidably connected with the groove and a threaded hole is arranged on the surface of the fixing strip.

2. The wind turbine variable pitch integrated machine structure according to claim 1, characterized in that: The driver is fixedly connected to the radiator through screws, and the radiator is fixedly connected to the brake cover through four evenly distributed anti-drop screws; the connector is fixedly connected to the radiator through screws.

3. The wind turbine variable pitch integrated machine structure according to claim 1, characterized in that: One end of the anti-falling steel rope is fixedly connected to the support plate by screws, and the other end is fixedly connected to the inner side of the driver by screws.

4. The wind turbine variable pitch integrated machine structure according to claim 1, characterized in that: The outer surfaces of the stator housing, the rear flange and the brake cover are provided with grooves communicating with each other on both sides, and two fixing strips are arranged in the groove on each side.

5. The wind turbine variable pitch integrated machine structure according to claim 1, characterized in that: The handle is provided with a mounting hole, and the mounting hole on the handle is connected with the threaded hole on the fixing bar through a first screw, and the first screw can lock the fixing bar in the grooves on the outer surfaces of the stator and the brake cover.

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