CN210531069U - Barring gear of direct-drive generator - Google Patents
Barring gear of direct-drive generator Download PDFInfo
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- CN210531069U CN210531069U CN201921392001.XU CN201921392001U CN210531069U CN 210531069 U CN210531069 U CN 210531069U CN 201921392001 U CN201921392001 U CN 201921392001U CN 210531069 U CN210531069 U CN 210531069U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a directly drive barring gear of generator contains: the top surface of the base is provided with two guide rails; the moving platform is connected with the top surface of the base in a sliding mode through two sliding grooves in the bottom of the moving platform, the moving platform translates along the radial direction of the rotor, and the first end of the moving platform points to the rotor and extends out of the top surface of the base; the movement control mechanism is connected with the base and the moving platform and is used for controlling the moving platform to move in a translation manner along the guide rail; the rotating roller is fixedly connected with the first end of the moving platform and arranged between the moving platform and the rotor, the central shaft of the rotating roller is perpendicular to the horizontal plane, the moving platform drives the rotating roller to move along the radial direction of the rotor, and when the outer side surface of the rotor is attached to the outer side surface of the rotor, the rotating roller rotates around the self central shaft to drive the rotor to rotate around the self central shaft; and the power mechanism is fixedly connected with the rotating roller and drives the rotating roller to rotate around the central shaft of the power mechanism. The rotor is turned by uniformly arranging a plurality of turning devices around the rotor.
Description
Technical Field
The utility model relates to a barring gear, in particular to barring gear who directly drives generator.
Background
The direct-drive generator mainly comprises a rotor and a stator, and the stator and the rotor are fixedly connected through a generator bearing. The rotor and the stator both have cylindrical structures, and the rotor is sleeved on the periphery of the stator. The generator bearing comprises a generator bearing outer ring and a generator bearing inner ring which are fixedly connected and are concentric with the central shaft. And a generator bearing ball way is formed between the outer ring of the generator bearing and the inner ring of the generator bearing. When the direct-drive generator is installed, firstly, the generator bearing is horizontally placed, and the central shaft of the generator bearing is vertical to the horizontal plane; then the rotor is placed on the outer ring of the generator bearing, so that the generator bearing and the rotor share a central shaft and are fixedly connected with the outer ring of the generator bearing; and finally, the stator is placed in the rotor, the generator bearing inner ring provides support for the stator, the stator and the generator bearing inner ring are fixedly connected, and no interference exists between the stator and the rotor. In an ideal state, the rotor, the stator, the inner ring of the generator bearing and the outer ring of the generator bearing are all concentric, the gap between the inner ring of the generator bearing and the outer ring of the generator bearing is uniform, and the balls of the generator bearing smoothly roll in a ball channel of the generator bearing between the inner ring of the generator bearing and the outer ring of the generator bearing.
However, in the related art, a cross fastening method is generally used when the stator is mounted. As shown in fig. 2, the cross fastening method is to sequentially mount four stator bolts connecting a stator and an inner race of a bearing of a generator in the order of position a → position B → position C → position D. When installing the stator through the cross fastening method, can lead to the unilateral atress of stator to produce the slope, and then influence the degree of consistency in clearance between generator bearing inner circle and the generator bearing outer lane, prevent that generator bearing ball from rolling smoothly, cause the damage to generator bearing. Meanwhile, the rotating track of the rotor cannot meet the requirement of flatness, and the rotor rotates unsmoothly, so that the power generation efficiency is influenced. And along with the operation of the generator, the damage is bigger and bigger, and the service life of the generator bearing of the generator can be greatly shortened.
Especially, as the power of the generator is increased, the size of the stator and the rotor is larger and larger, and the weight is increased continuously. For supporting the stator, as shown in fig. 1, the currently used generator bearing is provided with two identical generator bearing inner rings along the direction of the central axis thereof, the generator bearing outer ring is fixedly connected with the two generator bearing inner rings at the same time, and a generator bearing ball way is respectively formed between the generator bearing outer ring and each generator bearing inner ring. The stator bolt penetrates through the two generator bearing inner rings and the lower end face of the stator simultaneously and is fixedly connected with the stator and the two generator bearing inner rings. When the stator is installed by adopting a cross fastening method, the stator and the inner rings of the two generator bearings are not shared by a central shaft due to the unilateral stress of the stator. Gaps between the inner rings of the two generator bearings and the outer ring of the generator bearings are uneven, and the balls of the generator bearings cannot roll smoothly in the ball channels of the two generator bearings. Further increasing the potential safety fault of the wind driven generator.
Therefore, a device is needed to be designed, the concentricity of the stator and the rotor can be ensured when the stator is installed, the service life of a bearing of the generator is further prolonged, and the generating efficiency is improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a barring device of direct drive generator, through using a plurality of simultaneously the utility model discloses a barring device carries out the barring to aerogenerator's rotor when equipment aerogenerator for the clearance is even between generator bearing inner race and the generator bearing outer lane of the generator bearing of connecting aerogenerator rotor and stator, and generator bearing ball way is level and smooth, has guaranteed the concentricity of stator, rotor.
In order to achieve the above object, the utility model provides a barring gear of direct drive generator for to the rotor barring of direct drive generator, the center pin perpendicular to horizontal plane of rotor, motor bearing outer lane is sent out to rotor bottom plate fixed connection, the barring gear contains:
the top surface of the base is parallel to the horizontal plane, and the ground distance height of the top surface of the base is matched with the ground distance height of the bottom end surface of the rotor; the top surface of the base is provided with two parallel linear guide rails;
the movable platform is connected with the top surface of the base in a sliding manner; the first end of the mobile platform faces the rotor and extends out of the top surface of the base; two sliding grooves matched with the guide rails are fixedly arranged at the bottom of the moving platform, and one guide rail corresponds to one sliding groove; the sliding grooves are clamped outside the corresponding guide rails, and the sliding grooves are guided by the guide rails, so that the translation of the moving platform along the radial direction of the rotor is realized;
the movement control mechanism is connected with the base and the moving platform and is used for controlling the moving platform to move in a translation manner along the guide rail;
a rotary roller having a cylindrical structure, disposed between the moving platform and the rotor; the rotating roller is connected with the first end of the moving platform and is driven to move along the radial direction of the rotor by the moving platform; the central shaft of the rotating roller is vertical to the horizontal plane, and when the outer side surface of the rotating roller is attached to the outer side surface of the rotor, the rotating roller rotates around the self central shaft to drive the rotor to rotate around the self central shaft;
and the power mechanism is fixedly connected with the rotating roller and drives the rotating roller to rotate around the central shaft of the power mechanism.
The movement control mechanism includes: the device comprises a controller, a hydraulic station, an oil cylinder and a pressure sensor;
the oil cylinder comprises a cylinder body and a piston; the cylinder body is of a cylindrical structure, and the first end of the cylinder body is fixedly connected with the top surface of the base; the central axis of the cylinder body is parallel to the top surface of the base; the hydraulic station is connected with the first end of the cylinder body through an oil pipe pipeline and used for conveying hydraulic pressure into the cylinder body; the first end of the piston is positioned in the cylinder body, and the second end of the piston extends out of the second end of the cylinder body and is fixedly connected with the second end of the movable platform; the second end of the piston is driven to extend out or retract from the second end of the cylinder body through hydraulic pressure conveyed by the hydraulic station, so that the mobile platform is driven to translate along the guide rail;
the pressure sensor is connected with the first end of the cylinder body through an oil way and is used for measuring a hydraulic value in the oil cylinder;
the controller is connected with the hydraulic station and the pressure sensor; the hydraulic station is driven to start or stop working by the controller; the controller obtains a hydraulic value measured by the pressure sensor, and when the hydraulic value reaches a preset pressure threshold value in the controller, the controller drives the hydraulic station to maintain pressure, and the piston stops moving.
The power mechanism comprises a variable frequency motor and a speed reducer; the variable frequency motor is fixedly connected with the speed reducer body, and torque is input to the speed reducer through the variable frequency motor; the output shaft of the speed reducer vertically penetrates through the rotary roller and is fixedly connected with the rotary roller, and the output shaft of the speed reducer and the rotary roller share the same central shaft; the rotating roller is driven to rotate around the central shaft of the rotating roller by the output shaft of the speed reducer; the variable frequency motor is also in signal connection with a controller, and the controller drives the variable frequency motor to work according to an externally input rotating speed value.
The barring gear of the direct drive generator further comprises a mounting frame arranged between the rotor and the first end of the mobile platform, and the mounting frame is not interfered with the rotor; the mounting frame is provided with a U-shaped groove structure, and the opening end of the U-shaped groove faces the rotor; the mounting rack comprises a first transverse section, a second transverse section and a longitudinal section; the longitudinal section is vertical to the horizontal plane, and the middle part of the longitudinal section is fixedly connected with the first end of the mobile platform; the first transverse section and the second transverse section are both parallel to the horizontal plane; the first transverse section is fixedly connected with the top end of the longitudinal section, and the second transverse section is fixedly connected with the bottom end of the longitudinal section;
the rotary roller is arranged between the first transverse section and the second transverse section; the variable frequency motor and the speed reducer body are fixedly connected with the bottom surface of the second transverse section; the output shaft of the speed reducer vertically penetrates through the second transverse section and the rotary roller and is located in the U-shaped groove.
The bottom surface of the first transverse section is also fixedly provided with a first bearing for connecting an output shaft of the speed reducer and the first transverse section.
The barring gear of the direct drive generator also comprises an input/output device in signal connection with the controller; and inputting the set pressure threshold value and the set rotating speed value to a controller through the input and output device, and displaying the hydraulic pressure value through the input and output device.
The rotary roller is made of nylon rubber.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses simple structure, easy to use. When the installation directly drives the generator, with a plurality of the utility model discloses an even distribution of barring gear is directly driving electric motor rotor around, through the motion of hydraulic pressure station drive swivel gyro wheel towards the rotor, makes swivel gyro wheel laminating rotor lateral wall. When the variable frequency motor drives the rotary roller to rotate around the self central shaft, the direct drive generator rotor is driven to rotate around the self central shaft. The turning of the rotor of the direct-drive generator is realized.
2. The utility model discloses the pressure value in the real-time collection hydro-cylinder reachs predetermined threshold value when this pressure value, and controller automatic drive hydraulic pressure station pressurize. The rotating roller of each barring gear is guaranteed to apply the same force to the outer side wall of the rotor, and the smoothness of a generator bearing ball channel of a generator bearing for connecting the rotor and the stator is guaranteed.
3. The utility model discloses a radial direction removal of hydro-cylinder drive moving platform along the rotor makes the utility model discloses can be suitable for the different various specifications of rotor diameter's the generator that directly drives, have fine use value.
Drawings
In order to illustrate the technical solution of the present invention more clearly, the drawings needed for the description will be briefly introduced below, and it is obvious that the drawings in the following description are an embodiment of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to these drawings:
fig. 1 is a schematic view of the connection between the stator and the rotor of the direct drive generator and the generator bearing according to the first embodiment of the present invention;
fig. 2 is a schematic view of the lower end surface of the stator according to the first embodiment of the present invention;
fig. 3 is a perspective view of the barring gear of the present invention;
fig. 4 is a side view of the barring gear of the present invention;
FIG. 5 is a schematic view of the lower end face of the stator with three stator bolts installed;
FIG. 6 is a schematic view of the lower end face of the stator with six stator bolts installed;
in the figure: 1. a stator; 11. a stator bolt;
2. a rotor; 21. a rotor base plate; 22. a rotor fixing bolt;
31. a generator bearing outer race; 32. a first generator bearing inner race; 33. a second generator bearing inner race; 34. a generator bearing ball way;
41. a support; 42. a reinforcing plate; 43. a bracket positioning bolt;
5. a base; 51. a guide rail;
61. a mobile platform; 62. rotating the roller;
71. a first transverse segment; 72. a longitudinal segment; 73. a second transverse segment; 74. a first bearing;
81. a variable frequency motor; 82. an output shaft of the reducer; 83. a controller; 84. a touch screen; 85. a hydraulic station; 86. a speed reducer body;
91. a cylinder body; 92. a piston.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The direct-drive generator mainly comprises a rotor 2 and a stator 1, and the stator 1 and the rotor 2 are fixedly connected through a generator bearing. As shown in fig. 1, in a first embodiment of the present invention, the generator bearing is provided with two concentric generator bearing inner rings, namely a first generator bearing inner ring 32 and a second generator bearing inner ring 33. The rotor 2 and the stator 1 of the direct drive generator both have cylindrical structures. The rotor 2 is sleeved on the periphery of the stator 1 and is concentric with the stator 1. In the engineering of installing the direct drive generator, the rotor 2 is horizontally placed, the upper end of the rotor is an open end, and the lower end of the rotor is fixedly provided with a circular rotor bottom plate 21 which has the same central axis with the rotor 2. The upper end of the stator is an open end, and the lower end of the stator is provided with an inverted step. The inner ring diameter of the rotor bottom plate 21 matches the outer diameter of the lower end of the stator. The generator bearing comprises a generator bearing inner ring and a generator bearing outer ring 31 which are concentric with the stator 1 and the rotor 2. The inner diameter of the outer generator bearing ring 31 matches the outer diameter of the rotor base plate opening, the outer diameter of the outer generator bearing ring 31 matches the rotor outer diameter, and a generator bearing ball way 34 is formed between the outer generator bearing ring 31 and the inner generator bearing ring. The lower end face of the inner ring of the second generator bearing is provided with a reinforcing plate 42, the reinforcing plate 42 is fixed on a bracket 41 through a bracket positioning bolt 43, and the bracket 41 is fixed on the ground.
When a direct-drive generator is installed, firstly, a generator bearing is flatly placed on a support 41, a central shaft of the generator bearing is vertical to a horizontal plane, and a reinforcing plate 42 on the lower end face of an inner ring of the generator bearing is fixedly connected with the support 41; then, the rotor bottom plate 21 and the upper end face of the generator bearing outer ring 31 are fixedly connected through a plurality of rotor fixing bolts 22, so that the generator bearing outer ring 31 and the rotor 2 are integrally and fixedly connected; then the stator 1 is placed into the rotor 2 from the upper part of the rotor 2, and the lower end face of the stator is supported through the upper end face of the inner ring of the first generator bearing. Finally, the reinforcing plate 42, the second generator bearing inner ring 33, the first generator bearing inner ring 32 and the lower end face of the stator need to be sequentially penetrated from the lower part of the reinforcing plate 42 through the stator bolt 11, so that the stator 1 is fixedly connected with the two generator bearing inner rings.
The utility model provides a directly drive barring gear of generator, a plurality of the utility model discloses a barring gear even distribution is directly driving generator rotor 2 periphery for through two generator bearing inner circles of stator bolt 11 fixed connection and stator 1 time, directly drive the rotor 2 barring of generator. As shown in fig. 3 and 4, the barring device of the present invention comprises: base 5, moving platform 61, movement control mechanism, rotatory gyro wheel 62, mounting bracket, input/output device.
The base 5 is fixedly connected with the ground; the top surface of the base is parallel to the horizontal plane, and the height from the ground of the top surface of the base is matched with the height from the ground of the end surface of the bottom of the rotor; the top surface of the base is provided with two parallel linear guide rails 51.
The movable platform 61 is slidably connected to the top surface of the base, as shown in fig. 3, in the first application embodiment of the present invention, the movable platform 61 has a straight-line structure. The first end of the movable platform 61 faces the rotor 2 and extends out of the top surface of the base; two sliding grooves matched with the guide rails 51 are fixedly arranged at the bottom of the moving platform 61, and one guide rail 51 corresponds to one sliding groove; the sliding grooves are clamped outside the corresponding guide rails, and the sliding grooves are guided by the guide rails 51. By pre-adjusting the position of the base 5, the moving platform 61 is translated in the radial direction of the rotor 2.
The mounting bracket is arranged between the rotor 2 and the first end of the mobile platform and has no interference with the rotor 2. The mounting frame is provided with a U-shaped groove structure, and the opening end of the U-shaped groove faces the rotor 2; the mounting comprises a first transverse section 71, a second transverse section 73, a longitudinal section 72; the longitudinal section 72 is vertical to the horizontal plane, and the middle part of the longitudinal section is fixedly connected with the first end of the mobile platform; the first transverse section 71 and the second transverse section 73 are both parallel to the horizontal plane; the first transverse section 71 is fixedly connected with the top end of the longitudinal section, and a first bearing 74 is fixedly arranged on the bottom surface of the first transverse section; the second transverse section 73 is fixedly connected to the bottom end of the longitudinal section.
The rotating roller 62 has a cylindrical structure, and a central axis of the rotating roller 62 is perpendicular to a horizontal plane. The rotating roller 62 is connected between the first transverse section 71 and the second transverse section 73 of the mounting frame and between said longitudinal section 72 and the rotor 2. The rotary roller 62 is moved in the radial direction of the rotor 2 by the moving platform 61. When the outer side surface of the rotary roller 62 is attached to the outer side surface of the rotor, the rotor 2 is driven to rotate around the self central axis by the rotation of the rotary roller 62 around the self central axis; for the front turning of the rotor 2 of the direct drive motor, the rotating roller 62 is at a distance from the rotor 2. The rotating roller 62 is made of nylon rubber.
The power mechanism comprises a variable frequency motor 81 and a speed reducer. The variable frequency motor 81 is fixedly connected with the speed reducer body 86, the variable frequency motor outputs an axial input torque to the speed reducer, and the speed reducer converts the high rotating speed of the output shaft of the variable frequency motor into the low rotating speed of the output shaft 82 of the speed reducer.
The movement control mechanism, which is connected to the base 5 and the moving platform 61, is used for controlling the moving platform 61 to move horizontally along the guide rail 51, and comprises: controller 83, hydraulic station 85, cylinders and pressure sensors.
The oil cylinder comprises a cylinder body 91 and a piston 92; the cylinder 91 is a cylindrical structure, and the central axis of the cylinder is parallel to the top surface of the base; the hydraulic station 85 is connected with the first end of the cylinder body through an oil pipe pipeline and conveys hydraulic pressure into the cylinder body 91; the first end of the cylinder body is also fixedly connected with the top surface of the base; the first end of the piston is positioned in the cylinder body, and the second end of the piston extends out of the second end of the cylinder body and is fixedly connected with the second end of the movable platform; the second end of the piston is driven to extend or retract from the second end of the cylinder by hydraulic pressure delivered from the hydraulic station 85, thereby controlling the translation of the movable platform 61 along the guide rail 51.
The pressure sensor is arranged at the first end of the cylinder body, is connected with the first end of the cylinder body through an oil way and is used for measuring a hydraulic value in the oil cylinder.
The controller 83 is connected with the hydraulic station 85, the pressure sensor and the variable frequency motor in a signal connection way. The hydraulic station 85 is driven to start or stop operation by the controller 83. The controller 83 obtains the hydraulic pressure value measured by the pressure sensor, and when the hydraulic pressure value reaches a pressure threshold value preset in the controller 83, the controller 83 drives the hydraulic station 85 to maintain pressure, and the piston 92 stops moving. In the present embodiment, the controller 83 is fixedly disposed on the side of the base. The controller 83 generates a corresponding control signal according to an externally input rotation speed value, and the variable frequency motor and the reducer adjust the rotation speed of the reducer output shaft 82 according to the control signal.
The input and output device is in signal connection with the controller 83; the set pressure threshold value and the set rotation speed value are input to the controller 83 through the input-output device, and the hydraulic pressure value is displayed through the input-output device. In the first embodiment of the present invention, the input/output device is a touch screen 84, and is fixedly disposed on the controller 83.
In a second embodiment of the present invention, the generator bearing comprises a generator bearing inner ring. Equally can be when fixed connection stator 1 and this generator bearing inner circle, through the utility model discloses a barring gear guarantees the concentricity of stator 1 and rotor 2.
The utility model provides a direct drive generator stator's mounting method adopts the utility model discloses a what barring gear realized, rotor 2 fixed connection generator bearing outer lane 31, stator 1 place on the generator bearing inner race in rotor 2, but still not with generator bearing inner race fixed connection, generator bearing inner race contains upper and lower two-layer first generator bearing inner race 32, second generator bearing inner race 33. The mounting method of the direct drive generator stator comprises the following steps:
s1, uniformly and fixedly arranging a plurality of barring gear units of the invention on the periphery of the rotor, and enabling the motion direction of the mobile platform 61 to be the radial direction of the rotor 2 by adjusting the installation direction of the base 5;
s2, inputting a pressure threshold value, a rotating speed value of a variable frequency motor and a starting signal of a hydraulic station 85 into the controller 83 through an input and output device, injecting hydraulic oil into the hydraulic station 85, and pushing the moving platform 61 to translate towards the rotor 2 by a piston 92 of the hydraulic cylinder; the rotating roller 62 is attached to the outer side surface of the rotor;
s3, the variable frequency motor 81 and the speed reducer drive the rotary roller 62 to rotate around the self central shaft according to the input rotating speed value, and the rotor 2 is driven to rotate around the self central shaft through the rotary roller 62, so that turning is realized;
s4, the controller 83 measures the pressure value in the cylinder body through the pressure sensor, when the measured pressure value reaches the pressure threshold value, the controller 83 drives the hydraulic station to maintain pressure, and the mobile platform 61 stops moving;
s5, the variable frequency motor 81 continues to drive the rotary roller 62 to rotate around the central axis of the variable frequency motor, turning of the rotor 2 is kept, and meanwhile a plurality of stator bolts 11 sequentially penetrate through the reinforcing plate 42, the second generator bearing inner ring 33, the first generator bearing inner ring 32 and the end face of the lower end of the stator from the lower part, so that the stator 1 and the generator bearing inner ring are fixedly connected integrally; because the rotor 2 keeps rotating, the bearing ball way 34 of the generator keeps smooth, and the concentricity of the stator and the rotor 2 is ensured;
and S6, after the stator bolt 11 is installed, stopping turning, controlling the first end of the moving platform to move towards the base 5 through the hydraulic station 85, enabling the rotating roller 62 to leave the outer side wall of the rotor, and closing the hydraulic station 85.
Preferably, in the first application embodiment of the present invention, the stator 1 and the generator bearing inner ring are fixedly connected by six stator bolts 11, and the step S5 specifically includes:
s51, while the rotor 2 keeps rotating around a self central axis, the stator 1 and the generator bearing inner ring are simultaneously and fixedly connected through the three stator bolts 11, and the three stator bolts 11 are uniformly distributed at the lower end of the stator, so that the stator 1 is not stressed on one side any more during installation, the stress between the stator 1 and the generator bearing inner ring is uniform, and the concentricity of the stator 1 and the rotor 2 is ensured; the lower end surface of the stator is shown in FIG. 5;
s52, the rotor 2 continues to rotate around the central axis of the rotor, one stator bolt 11 is respectively and simultaneously installed between the adjacent stator bolts 11, and the lower end face of the stator is shown in FIG. 6; further fixedly connecting the stator 1 with the inner ring of the generator bearing.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses simple structure, easy to use. When the installation directly drives the generator, with a plurality of the utility model discloses a barring gear even distribution is directly driving electric motor rotor 2 around, through the drive the utility model discloses a rotatory gyro wheel 62 laminating rotor lateral wall. When the variable frequency motor 81 and the speed reducer drive the rotary roller 62 to rotate around the self central axis, the direct drive generator rotor 2 is driven to rotate around the self central axis. Turning of the rotor 2 of the direct drive generator is achieved.
2. The utility model discloses the pressure value in the real-time collection hydro-cylinder reachs predetermined threshold value when this pressure value, and controller 83 automatic drive hydraulic pressure station 85 pressurize. The rotating roller 62 of each turning gear is ensured to apply the same force to the outer side wall of the rotor, and the generator bearing ball way 34 of the generator bearing connecting the rotor 2 and the stator is ensured to be smooth. The stator and the rotor are coaxial, so that the service life and the power generation efficiency of the direct drive motor are greatly improved.
3. The utility model discloses a hydro-cylinder drive moving platform removes along the radial direction of rotor 2, makes the utility model discloses can be suitable for the different various specifications of rotor diameter's the generator that directly drives, have fine use value.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a barring device of direct drive generator for carry out the barring to the rotor of direct drive generator, the center pin perpendicular to horizontal plane of rotor, rotor bottom plate fixed connection generator bearing outer lane, its characterized in that, the barring device contains:
the top surface of the base is parallel to the horizontal plane, and the ground distance height of the top surface of the base is matched with the ground distance height of the bottom end surface of the rotor; the top surface of the base is provided with two parallel linear guide rails;
the movable platform is connected with the top surface of the base in a sliding manner; the first end of the mobile platform faces the rotor and extends out of the top surface of the base; two sliding grooves matched with the guide rails are fixedly arranged at the bottom of the moving platform, and one guide rail corresponds to one sliding groove; the sliding grooves are clamped outside the corresponding guide rails, and the sliding grooves are guided by the guide rails, so that the translation of the moving platform along the radial direction of the rotor is realized;
the movement control mechanism is connected with the base and the moving platform and is used for controlling the moving platform to move in a translation manner along the guide rail;
a rotary roller having a cylindrical structure, disposed between the moving platform and the rotor; the rotating roller is connected with the first end of the moving platform and is driven to move along the radial direction of the rotor by the moving platform; the central shaft of the rotating roller is vertical to the horizontal plane, and when the outer side surface of the rotating roller is attached to the outer side surface of the rotor, the rotating roller rotates around the self central shaft to drive the rotor to rotate around the self central shaft;
and the power mechanism is fixedly connected with the rotating roller and drives the rotating roller to rotate around the central shaft of the power mechanism.
2. The barring gear of the direct drive generator as claimed in claim 1 wherein the movement control mechanism comprises: the device comprises a controller, a hydraulic station, an oil cylinder and a pressure sensor;
the oil cylinder comprises a cylinder body and a piston; the cylinder body is of a cylindrical structure, and the first end of the cylinder body is fixedly connected with the top surface of the base; the central axis of the cylinder body is parallel to the top surface of the base; the hydraulic station is connected with the first end of the cylinder body through an oil pipe pipeline and used for conveying hydraulic pressure into the cylinder body; the first end of the piston is positioned in the cylinder body, and the second end of the piston extends out of the second end of the cylinder body and is fixedly connected with the second end of the movable platform; the second end of the piston is driven to extend out or retract from the second end of the cylinder body through hydraulic pressure conveyed by the hydraulic station, so that the mobile platform is driven to translate along the guide rail;
the pressure sensor is connected with the first end of the cylinder body through an oil way and is used for measuring a hydraulic value in the oil cylinder;
the controller is connected with the hydraulic station and the pressure sensor; the hydraulic station is driven to start or stop working by the controller; the controller obtains a hydraulic value measured by the pressure sensor, and when the hydraulic value reaches a preset pressure threshold value in the controller, the controller drives the hydraulic station to maintain pressure, and the piston stops moving.
3. The barring gear of the direct drive generator of claim 2 wherein the power mechanism comprises a variable frequency motor and a speed reducer; the variable frequency motor is fixedly connected with the speed reducer body, and torque is input to the speed reducer through the variable frequency motor; the output shaft of the speed reducer vertically penetrates through the rotary roller and is fixedly connected with the rotary roller, and the output shaft of the speed reducer and the rotary roller share the same central shaft; the rotating roller is driven to rotate around the central shaft of the rotating roller by the output shaft of the speed reducer; the variable frequency motor is also in signal connection with a controller, and the controller drives the variable frequency motor to work according to an externally input rotating speed value.
4. The barring gear of the direct drive generator of claim 3 further comprising a mounting bracket disposed between the rotor and the first end of the mobile platform, the mounting bracket being non-interfering with the rotor; the mounting frame is provided with a U-shaped groove structure, and the opening end of the U-shaped groove faces the rotor; the mounting rack comprises a first transverse section, a second transverse section and a longitudinal section; the longitudinal section is vertical to the horizontal plane, and the middle part of the longitudinal section is fixedly connected with the first end of the mobile platform; the first transverse section and the second transverse section are both parallel to the horizontal plane; the first transverse section is fixedly connected with the top end of the longitudinal section, and the second transverse section is fixedly connected with the bottom end of the longitudinal section;
the rotary roller is arranged between the first transverse section and the second transverse section; the variable frequency motor and the speed reducer body are fixedly connected with the bottom surface of the second transverse section; the output shaft of the speed reducer vertically penetrates through the second transverse section and the rotary roller and is located in the U-shaped groove.
5. The barring gear of the direct drive generator as claimed in claim 4 wherein the first bearing is further fixedly arranged on the bottom surface of the first transverse section for connecting the output shaft of the speed reducer and the first transverse section.
6. The barring gear of the direct drive generator of claim 3 further comprising an input output device in signal connection with the controller; and inputting the set pressure threshold value and the set rotating speed value to a controller through the input and output device, and displaying the hydraulic pressure value through the input and output device.
7. The barring gear of the direct drive generator of claim 1 wherein the rotating roller is of nylon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921392001.XU CN210531069U (en) | 2019-08-26 | 2019-08-26 | Barring gear of direct-drive generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921392001.XU CN210531069U (en) | 2019-08-26 | 2019-08-26 | Barring gear of direct-drive generator |
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| CN210531069U true CN210531069U (en) | 2020-05-15 |
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| CN201921392001.XU Active CN210531069U (en) | 2019-08-26 | 2019-08-26 | Barring gear of direct-drive generator |
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Address after: 200241 Dongchuan Road, Shanghai, No. 555, building No. 8, floor, floor, No. Patentee after: Shanghai Electric Wind Power Group Co.,Ltd. Address before: 200241, 4 floor, building 555, 4 Dongchuan Road, Shanghai, Minhang District Patentee before: SHANGHAI ELECTRIC WIND POWER GROUP Co.,Ltd. |