CN113533961A - Double-fed wind driven generator test coupling device - Google Patents
Double-fed wind driven generator test coupling device Download PDFInfo
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- CN113533961A CN113533961A CN202110817321.0A CN202110817321A CN113533961A CN 113533961 A CN113533961 A CN 113533961A CN 202110817321 A CN202110817321 A CN 202110817321A CN 113533961 A CN113533961 A CN 113533961A
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- 238000010168 coupling process Methods 0.000 title claims abstract description 110
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 110
- 238000012360 testing method Methods 0.000 title claims abstract description 72
- 230000007704 transition Effects 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 8
- 238000012986 modification Methods 0.000 description 7
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- 238000000429 assembly Methods 0.000 description 4
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- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 239000010959 steel Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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Abstract
The invention discloses a test coupling device of a double-fed wind driven generator, which comprises a dummy shaft or a torque sensor, wherein the dummy shaft or the torque sensor is arranged between two double-fed wind driven generators, shaft extensions of the two double-fed wind driven generators are oppositely arranged and positioned on the same horizontal line, a generator coupler, a first bearing seat coupler, a bearing seat assembly, a second bearing seat coupler and a sensor coupler which are sequentially connected are sleeved on the shaft extensions of the two double-fed wind driven generators along the direction from the root part of the shaft extension to the tail end of the shaft extension, the sensor coupler is sleeved on a shaft of the dummy shaft or the torque sensor, the second bearing seat coupler is connected with the dummy shaft or the torque sensor, and the generator coupler is elastically connected with the first bearing seat coupler. The invention solves the problems of low erection efficiency, difficult centering, large mechanical vibration and the like of the double-fed wind driven generator in the coupling test in the prior art.
Description
Technical Field
The invention relates to the technical field of wind driven generators, in particular to a double-fed wind driven generator test coupling device.
Background
Because the double-fed wind driven generator has large self weight, large output torque and long axial dimension, if rigid connection is adopted, the requirement on the processing quality of parts is high, the cost is high, the axial line of the double-fed wind driven generator is extremely difficult to align with the axial line of the test coupling device during erection, the production efficiency is very low, the coupling device and the generator vibrate greatly during the test, and safety accidents can also occur.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a double-fed wind driven generator test coupling device, which solves the problems of low erection efficiency, difficult centering, large mechanical vibration and the like of a double-fed wind driven generator in the coupling test in the prior art.
The technical scheme adopted by the invention for solving the problems is as follows:
the utility model provides a experimental coupling device of double-fed aerogenerator, includes dummy shaft or torque sensor, the dummy shaft or torque sensor is between two double-fed aerogenerator, two double-fed aerogenerator's the opposite direction of axle extension sets up and is located same water flat line, and the cover is equipped with generator shaft coupling, first bearing coupling, bearing frame equipment, second bearing coupling, the sensor coupling that connects gradually on the axle extension root to the end direction of axle extension at two double-fed aerogenerator's axle extension, the sensor coupling suit is epaxial at dummy shaft or torque sensor, and the second bearing coupling is connected with dummy shaft or torque sensor, the generator shaft coupling with first bearing coupling elastic connection.
In this technical scheme, two double-fed aerogenerator do not regard as dragging machine, testing machine, the generator shaft coupling with first bearing frame coupling elastic connection to elastic coupling structure has been formed, make the frame dress become easy, convenient operation is convenient for adjust the centering moreover, on this basis, makes coupling device and generator vibration reduce by a wide margin when making experimental, is favorable to reducing the emergence of incident. Therefore, the problems of low erection efficiency, difficult centering, large mechanical vibration and the like of the double-fed wind driven generator in the coupling test in the prior art are solved.
As a preferred technical scheme, the first bearing seat coupler, the bearing seat assembly, the second bearing seat coupler and the sensor coupler are sequentially and rigidly connected.
The connection continues the conventional connection structure of the prior test coupling device, so that the device is not required to be changed greatly, the modification amount of the device is reduced, and the modification cost is reduced.
As a preferred technical scheme, the double-feed wind driven generator testing device further comprises a testing platform and an installation base installed on the testing platform, the bearing seat assembly and the torque sensor are installed on the installation base, the center lines of the assembled generator coupler, the first bearing seat coupler, the assembled bearing seat, the second bearing seat coupler and the assembled sensor coupler are on the same horizontal line, and the distance between the horizontal line and the upper surface of the testing platform is the same as the distance between the center lines of the shaft extensions of the two double-feed wind driven generators.
The structure ensures the alignment of the axis of the double-fed wind driven generator and the axis of the test coupling device, is favorable for quick alignment, and reduces mechanical vibration.
As a preferred technical scheme, the wind driven generator further comprises a transition disc, the generator coupler is a direct-shaft motor coupler, and the transition disc and the generator coupler are positioned by adopting a seam allowance.
The transition disc and the generator coupler are positioned by adopting the seam allowance, so that the debugging is convenient, and the positioning is firm.
As a preferred technical scheme, the bearing seat assembly comprises a rotating shaft, wherein the rotating shaft is provided with a first key groove and is used for installing a first bearing seat coupler and/or a second bearing seat coupler, and the torque during the load test can be reliably transmitted.
As a preferred technical scheme, a second key groove is arranged on the first bearing seat coupler, and the width and the depth of the second key groove are matched with those of the first key groove.
This facilitates a reliable connection of the first bearing housing coupling to the bearing housing assembly by means of the associated connecting member and facilitates operation.
As a preferred technical scheme, the end face of the dummy shaft is provided with a third key groove, the end face of the second bearing block coupler is provided with a fourth key groove, and the third key groove is the same as the fourth key groove in size and depth.
This facilitates reliable coupling of the dummy shaft to the second bearing housing coupling by means of the associated coupling member, reliably transferring torque during load testing.
As a preferable technical scheme, the side surface of the dummy shaft is also provided with speed measuring teeth.
The speed measuring teeth are used for measuring the movement speed of the dummy shaft.
As a preferred technical scheme, the mounting base is provided with a base mounting hole, the test platform is provided with a platform mounting groove, and the base mounting hole is matched with the platform mounting groove.
This facilitates the connection of the mounting base to the test platform.
As a preferable technical scheme, the bearing inner ring is provided with a flange.
Such a structure facilitates control of axial play of the shafting.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention forms an elastic coupling structure, so that the mounting is easy, the operation is convenient, the adjustment and the centering are convenient, on the basis, the vibration of the coupling device and the generator during the test is greatly reduced, and the safety accidents are favorably reduced. Therefore, the problems of low erection efficiency, difficult centering, large mechanical vibration and the like of the double-fed wind driven generator in the coupling test in the prior art are solved;
(2) the invention continues the conventional connecting structure of the prior test coupling device, so that the device does not need to be changed greatly, the modification amount of the device is reduced, and the modification cost is reduced;
(3) the invention ensures the alignment of the axis of the double-fed wind driven generator and the axis of the test coupling device, is beneficial to rapid alignment and further reduces mechanical vibration;
(4) the straight shaft type motor coupler is convenient to install and manufacture, and the transition disc and the generator coupler are positioned by adopting the seam allowances, so that the positioning is firm;
(5) the invention is convenient for reliably connecting the generator coupler and the first bearing seat coupler through the related connecting part and is convenient to operate;
(6) the first bearing seat coupler and the bearing seat are conveniently and reliably connected through the related connecting parts, and the operation is convenient;
(7) the invention is convenient for reliably connecting the dummy shaft or the torque sensor and the sensor coupler with the second bearing seat coupler through the related connecting parts, and is convenient to operate;
(8) the speed measuring teeth are convenient for measuring the movement speed of the dummy shaft, so that the centering, testing and other related parameters are set and adjusted according to the movement speed, and the applicability and reliability of the whole device are improved conveniently;
(9) the invention is convenient for the connection between the mounting base and the test platform;
(10) the axial play of the shafting of the bearing is convenient to control.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the bearing seat assembly according to the present invention;
FIG. 3 is a schematic structural view of a generator coupling according to the present invention;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a schematic view of the construction of the dummy shaft according to the present invention;
FIG. 6 is a right side view of FIG. 5;
fig. 7 is a schematic structural diagram of the first bearing seat coupler according to the present invention;
fig. 8 is a right side view of fig. 7.
Reference numbers and corresponding part names in the drawings: 1. a dummy shaft, 2, a torque sensor, 3, a generator coupling, 4, a first bearing seat coupling, 5, a bearing seat assembly, 6, a second bearing seat coupling, 7, a sensor coupling, 8 a mounting base, 9 a test platform, 10, a speed measuring device, 11, a dummy shaft connecting disc, 12, a dummy shaft bolt groove, 13, a speed measuring tooth, 14, a process threaded hole, 15, a dummy shaft mounting hole, 16, a lightening hole, 17, a third key groove, 18, a dummy shaft outer spigot, 31, a transition disc, 32, a generator coupling connecting assembly, 33, a first pin mounting hole, 41, a first bearing seat coupling through hole, 42, a first bearing seat coupling threaded hole, 43, a second pin mounting hole, 44, a second key groove, 51, a rotating shaft, 52, a bearing seat, 53, a spacer, 54, a bearing, 55, a bearing cover, 56, a bearing seat assembly connecting disc, 57 and a first key groove, 58. bearing frame equipment mounting hole, 59, bearing frame equipment key and mounting screw, 541, flange, 561, bearing frame equipment inner spigot, 562, eyebolt, 81, base mounting hole, 91, platform mounting groove, 89, base platform connecting part, 100, double-fed wind driven generator, 101, shaft extension, 102 and generator body.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
It should be noted that the invention relates to a dummy shaft connection pad 11, a dummy shaft bolt slot, a speed measurement tooth 13, a process threaded hole 14, a dummy shaft installation hole 15, a lightening hole 16, a third key slot 17, a dummy shaft outer spigot 18, a transition disc 31, a generator coupling connection assembly 32, a first pin installation hole 33, a first bearing block coupling through hole 41, a first bearing block coupling threaded hole 42, a second pin installation hole 43, a second key slot 44, a pin cone hole 45, a bearing block assembly connection pad 56, a first key slot 57, a bearing block assembly installation hole 58, a bearing block assembly key and installation screw 59, a bearing block assembly inner spigot 561, a lifting ring screw 562, a base installation hole 81, a platform installation groove 91, a base platform connection component 89, a doubly-fed wind generator 100, a shaft extension 101, a generator body 102 and the like, and is not a core invention point of the invention, or belongs to the prior art, or is clearly shown in the figures, therefore, no further description of the structure and operation principle is given.
Example 1
As shown in fig. 1 to 8, a experimental coupling device of double-fed aerogenerator, including dummy shaft 1 or torque sensor 2, dummy shaft 1 or torque sensor 2 is between two double-fed aerogenerator's axle extension 101, two double-fed aerogenerator's axle extension 101 subtend sets up and is located same water flat line, and the cover is equipped with generator coupling 3, first bearing coupling 4, bearing frame equipment 5, second bearing coupling 6, sensor coupling 7 etc. that connect gradually on two double-fed aerogenerator's axle extension 101 along axle extension 101 root to axle extension 101 terminal direction, sensor coupling 7 suit is epaxial at dummy shaft 1 or torque sensor 2, and second bearing coupling 6 is connected with dummy shaft 1 or torque sensor 2, generator coupling 3 with first bearing coupling 4 elastic connection.
During the use, two double-fed aerogenerator do not regard as drags machine end, testing machine, generator shaft coupling 3 with 4 elastic connection of first bearing frame shaft coupling to elastic coupling structure has been formed, make the frame dress become easy, convenient operation is convenient for adjust the centering moreover, on this basis, then make coupling device and generator vibration reduce by a wide margin when experimental, are favorable to reducing the emergence of incident. Therefore, the problems of low erection efficiency, difficult centering, large mechanical vibration and the like of the double-fed wind driven generator in the coupling test in the prior art are solved.
As a preferred technical solution, the first bearing seat coupling 4, the bearing seat assembly 5, the second bearing seat coupling 6, and the sensor coupling 7 are rigidly connected in sequence.
The connection continues the conventional connection structure of the prior test coupling device, so that the device is not required to be changed greatly, the modification amount of the device is reduced, and the modification cost is reduced.
As a preferred technical scheme, the double-fed wind driven generator test platform further comprises a test platform 9 and a mounting base 8 mounted on the test platform 9, wherein the dummy shaft 1 or the torque sensor 2 is mounted on the mounting base 8, the central lines of the generator coupler 3, the first bearing seat coupler 4, the bearing seat assembly 5, the second bearing seat coupler 6 and the sensor coupler 7 are all on the same horizontal line, and the distance between the horizontal line and the upper surface of the test platform 9 is the same as the distance between the central lines of the shaft extensions 101 of the two double-fed wind driven generators and the upper surface of the test platform 9.
The structure is more favorable for ensuring the alignment of the axis of the double-fed wind driven generator and the axis of the test coupling device, is favorable for quick alignment and reduces mechanical vibration.
As a preferred technical scheme, still include transition dish 31, generator coupling 3 is straight-axis class motor coupling, transition dish 31 with generator coupling 3 adopts the tang to fix a position.
The direct-shaft motor coupler is convenient to install and manufacture, and the transition disc 31 and the generator coupler 3 are positioned by adopting a seam allowance, so that debugging is convenient, and positioning is reliable.
Example 2
As shown in fig. 1 to 8, as a further optimization of embodiment 1, this embodiment includes all the technical features of embodiment 1, and in addition, this embodiment further includes the following technical features:
as a preferred technical solution, the bearing seat assembly 5 includes a rotating shaft 51, and the outer circular surfaces of two ends of the rotating shaft 51 are provided with a first key groove 57 and a mounting hole of the rotating shaft 51 for connecting with the first bearing seat coupler 4 and/or the second bearing seat coupler 6.
This facilitates a reliable connection of the bearing housing assembly 5 with the first bearing housing coupling 4 and/or the second bearing housing coupling 6 by means of the associated connecting members and is easy to handle.
As a preferable technical solution, the first bearing seat coupling 4 is provided with a second key groove 44, and the width and depth of the second key groove 44 match with those of the first key groove 57.
This facilitates a secure connection of the first bearing housing coupling 4 with the bearing housing assembly 5 by means of the associated connecting parts and facilitates handling.
As a preferable technical solution, the end face of the dummy shaft 1 is provided with a third key groove 17, the end face of the second bearing block coupling 6 is provided with a fourth key groove 61, and the size and depth of the third key groove 17 are the same as those of the fourth key groove 61.
This facilitates a reliable connection of the dummy shaft 1 with the second bearing housing coupling 6 by means of the associated connecting member and is easy to handle.
As a preferable technical solution, the shaft side surface of the dummy shaft 1 is further provided with a speed measuring tooth 13.
The speed measuring teeth 13 are convenient for measuring the movement speed of the dummy shaft 1.
As a preferred technical scheme, the mounting base 8 is provided with a base mounting hole 81, the test platform 9 is provided with a platform mounting groove 91, and the base mounting hole 81 is matched with the platform mounting groove 91.
This facilitates the connection of the mounting base 8 to the test platform 9.
As a preferable technical solution, the inner ring of the bearing 54 is provided with a rib 541.
Such a structure facilitates control of the axial play amount of the shaft system of the bearing 54.
Example 3
As shown in fig. 1 to 8, this embodiment includes all the technical features of embodiment 1 and embodiment 2, and this embodiment provides a more detailed implementation manner on the basis of embodiment 1 and embodiment 2.
The invention describes a double-fed wind driven generator test coupling device, which is an elastic coupling structure test device, wherein an original ball cage type universal coupling is replaced by an elastic coupling structure, and a dummy shaft 1 replaces a torque sensor 2 to complete a factory test task. The device mainly comprises 1 mounting base 8, 1 torque sensor 2, 1 dummy shaft 1, two sets of bearing seat assemblies 5 (comprising 1 rotating shaft 51, 1 bearing seat 52, 2 second bearing seat couplers 6, 2 spacer bushes 53, 2 bearings 54, 2 bearing covers 55 and the like), 2 sensor couplers 7, 2 first bearing seat couplers 4, two sets of generator couplers 3, pins, rubber rings, fasteners and the like. The mechanical connection is sequentially a generator coupler 3 at the end of a tractor (a doubly-fed wind generator), a bearing seat assembly 5, a dummy shaft 1 or a torque sensor 2, the bearing seat assembly 5 and the generator coupler 3 of the tested generator. The bearing seat 52 and the torque sensor 2 are both installed on the installation base 8, and the center height of the assembled device is the same as that of the doubly-fed wind generator. This device and double-fed aerogenerator adopt rag bolt all to install on test platform, use torque sensor 2 during the pattern test to precision measurement generator efficiency isoparametric demolishs torque sensor 2 when dispatching from the factory and testing, replaces this torque sensor 2 with dummy shaft 1, with extension torque sensor 2's service life.
After the device is designed, manufactured and assembled, the center height of the device is the same as that of a doubly-fed wind driven generator, a torque sensor 2 is used in a type test, parameters such as the efficiency of the generator are accurately measured, the torque sensor 2 is detached in a factory test, and the torque sensor 2 is replaced by a dummy shaft 1, so that the service life of the torque sensor 2 is prolonged. The device is elastically connected with a first bearing seat coupler 4 through a generator coupler 3 at the end of a tractor (a doubly-fed wind generator), a second bearing seat coupler 6 at the other end of a bearing seat 52 is rigidly connected with a dummy shaft 1 or a sensor coupler 7 of a torque sensor 2, the sensor coupler 7 or the dummy shaft 1 at the other end of the torque sensor 2 is rigidly connected with the second bearing seat coupler 6 of the bearing seat 52, and the first bearing seat coupler 4 at the other end of the bearing seat 52 is elastically connected with the generator coupler 3 of a tested generator, so that the transmission of torque is realized. Once installed, the device is not removed at any time. Before the test, the generator coupler 3 is installed on the rotating shaft 51 of the doubly-fed wind generator, and then is coupled with the device to realize elastic connection.
The double-fed wind driven generator test coupling device is shown in detail in figure 1, wherein the dimension A is the total height of an installation base 8, the dimension B is the height between a bearing seat assembly 5 and the rotating axis of a torque sensor 2 and the upper surface of the installation base 8, the dimension C is the height of the axis of the double-fed wind driven generator, and the dimension R is the length (without seam allowance height) between the end surfaces of a second bearing seat coupler 6 of two sets of bearing seat assemblies 5.
The mounting base 8 is used for mounting two sets of bearing seat assemblies 5 and the torque sensor 2, the base is formed by welding and processing a steel plate T30, the mounting base 8 is provided with the bearing seat assemblies 5, the torque sensor 2, the speed measuring device 10 and a base mounting hole 81 between the base mounting hole 81 and the test platform 9, and the size and the position of the base mounting hole 81 are required to be the same as the distance between the T-shaped grooves (platform mounting grooves 91) of the test platform 9. After the bearing seat assembly 5 and the torque sensor 2 are assembled, the total height A + B of the rotating axis of the double-fed wind driven generator is the same as the height C of the axis of the double-fed wind driven generator.
The bearing seat assembly 5 is shown in detail in fig. 2, and comprises parts such as 1 rotating shaft 51, 1 bearing seat 52, 2 second bearing seat couplers 6, 2 spacer bushes 53, 2 bearings 54, 2 bearing covers 55, fasteners and the like, wherein the diameter phi O and the length of the rotating shaft 51 need to be capable of transmitting torque required by the doubly-fed wind generator, a symmetrical double-key configuration is adopted, and the end face of the rotating shaft 51 is also provided with a mounting hole of the coupler. The bearing seat assembly 5 adopts a mechanism design of the double-NJ bearing 54 (the single-side belt flanges 541 of the bearing 54 are close to the inner sides of the flanges 541 of the two bearings 54, and the axial movement of a shaft system of the bearing 54 is controlled), and the specification and the size of the bearing 54 can meet the requirements of torque and rotating speed required by the double-fed wind driven generator. The outer diameter of the connecting disc of the second bearing seat coupler 6, the size of the mounting hole and the size of the distribution circle are the same as the corresponding sizes of the sensor, the diameter of the inner spigot and the dummy shaft 1, and the torque requirement of the double-fed wind driven generator can be met.
The generator coupler 3 is composed of a transition disc 31 and a direct-shaft motor test coupler, elastic connection with the generator coupler 3 is achieved, and the direct-shaft motor test coupler is patented (application number of a direct-shaft motor test coupler is CN 202021867789.8). The transition disc 31 and the test coupler of the direct-axis motor are positioned by adopting a seam allowance, and the transition disc 31 is tightly fixed on the end face of the test coupler of the direct-axis motor by at least 10 sets of M16 bolts and washers. The thickness dimension D of the transition disc 31 is matched with the length of the pin, the outer diameter phi K is 10mm larger than the sum of the diameter of the distribution circle phi H and the outer diameter of the rubber ring, 4M 16 process screw holes are symmetrically arranged on the outer circular surface, the inner diameter dimension phi E is about 60mm smaller than the diameter of the distribution circle phi H, the depth dimension F is about 35mm, 10 x phi 18 is a mounting hole, the size of the distribution circle is the same as the corresponding size of a shaft sleeve of a straight shaft type motor test coupling, and 10 x R18 is set based on the weight of the transition disc 31 and facilitates bolt fastening. 12 x phi I is the insertion hole of the elastic pin and the rubber ring, phi I is matched with the outer diameter of the rubber ring, and the distribution circle size phi H is preferably 360mm +/-20 mm.
The dummy shaft 1 is designed in a bilateral symmetry mode and is provided with lightening holes, and the length dimension R is as shown in a figure 1: the length dimension R of the double-fed wind driven generator test coupling device is the same, the thickness dimension Q and the diameter dimension phi S need to be capable of transmitting the torque of the double-fed wind driven generator during the test, and the double-fed wind driven generator test coupling device has mechanical overload capacity of 1.7 times or more. The dummy shaft 1 is also provided with a keyway, the size and depth of which are the same as those of the second bearing block coupling 6. The outer tang size and the protrusion height of connection pad, mounting hole size and the circle size that distributes etc. and the interior tang size and the degree of depth of second bearing frame shaft coupling 6, mounting hole size and the circle size that distributes match, false axle 1 still is provided with the fabrication hole and two and tests the speed the tooth, and the axial thickness who tests the speed the tooth is not less than 30mm, and the external diameter, the number of teeth and the position and the figure 1 that test the speed the tooth: the speed measurement device shown in a doubly-fed wind generator test coupling is the same.
The first bearing seat coupler 4 is arranged at the other end of the second bearing seat coupler 6 in the bearing seat assembly 5 to realize elastic connection with the generator coupler 3, three threaded holes and three through holes are symmetrically formed in the end face and used for press mounting and dismounting of the coupler, and four process holes M16 are symmetrically formed in the outer circular surface. The coupler inner hole is provided with a key groove, the width and the depth of the key groove are matched with the width and the depth of the key groove on the rotating shaft 51 in the bearing seat assembly 5, the length size P and the inner diameter size phi O of the inner hole of the coupler are matched with the length size and the outer diameter phi O of the rotating shaft 51 in the bearing seat assembly 5, the outer diameter size phi T is 50-55 mm larger than the inner diameter size phi O, the thickness size N, the taper size phi M of the pin mounting hole and the taper length and taper size of the pin are matched, the number of the holes is preferably 12, and the distribution circle phi H and the outer diameter phi K are the same as the distribution circle and the outer diameter corresponding to the generator coupler 3.
The use requirements are as follows:
A. the bearing seat assembly 5, the torque sensor 2 and the like are mounted and fastened on the mounting base 8 by bolts, washers and the like, and the mounting base 8 is mounted on the test platform by foundation bolts.
B. The torque sensor 2 or the dummy shaft 1 and the second bearing block coupler 6 are symmetrically installed by double keys, and the first bearing block coupler 4 and the rotating shaft 51 are symmetrically installed by double keys to transmit torque.
C. In order to ensure the accuracy and reliability of the test data, the torque sensor 2 is used in the pattern test. In order to prolong the service life of the torque sensor 2, the torque sensor 2 is detached and replaced by the dummy shaft 1 during factory test.
D. When the doubly-fed wind driven generator is mounted on a frame, the distance between the transition disc 31 of the generator coupler 3 and the end face of the first bearing seat coupler 4 is about 0.5 mm-1.0 mm, the distance deviation between the end faces is not more than 0.2mm, and the radial position deviation between the transition disc 31 of the first bearing seat coupler 4 and the maximum excircle face of the generator coupler 3 is not more than 0.2 mm.
E. After aligning the transition disc 31 with the hole sites of phi H of the distribution circle of the generator coupler 3, 1 two sets of pins and a plurality of rubber rings are installed and fastened.
The invention can not only ensure the accuracy and reliability of the type test data, but also prolong the service life of the torque sensor 2.
The invention uses the elastic coupling structure, thereby not only isolating vibration and ensuring the reliability and safety of test operation, but also improving the efficiency of erecting the generator and reducing the labor intensity of staff.
In the bearing seat assembly 5, the structural design of the double-bearing 54NJ type bearing 54 is adopted, so that the fatal damage to the torque sensor 2 caused by vibration due to misalignment of the axis is avoided.
The design and assembly of the double bearing seat assembly 5 of the invention can avoid the fatal damage of the torque sensor 2 caused by the vibration caused by the misalignment of the axial lead.
As described above, the present invention can be preferably realized.
The foregoing is only a preferred embodiment of the present invention, and the present invention is not limited thereto in any way, and any simple modification, equivalent replacement and improvement made to the above embodiment within the spirit and principle of the present invention still fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a experimental coupling device of double-fed aerogenerator, a serial communication port, including dummy shaft or torque sensor, the dummy shaft or torque sensor is between two double-fed aerogenerator, two double-fed aerogenerator's the axle stretches opposite direction setting and is located same water flat line, and the cover is equipped with generator coupling, first bearing frame shaft coupling, bearing frame equipment, second bearing frame shaft coupling, the sensor coupling that connects gradually on root to the axle stretches the end direction along the axle of two double-fed aerogenerator's axle stretches, the sensor coupling suit is epaxial at dummy shaft or torque sensor, and second bearing frame shaft coupling is connected with dummy shaft or torque sensor, the generator coupling with first bearing frame shaft coupling elastic connection.
2. The experimental coupling device of a doubly-fed wind generator of claim 1, characterized in that said first bearing coupling, bearing housing assembly, second bearing housing coupling, sensor coupling are rigidly connected in sequence.
3. The experimental coupling device of a doubly-fed wind generator of claim 2, characterized by further comprising an experimental platform and an installation base installed on the experimental platform, wherein the bearing seat assembly and the torque sensor are installed on the installation base, the central lines of the assembled generator coupler, the first bearing seat coupler, the bearing seat assembly, the second bearing seat coupler and the sensor coupler are all on a horizontal line, and the height of the horizontal line from the upper surface of the experimental platform is the same as the height of the central lines of the shaft extensions of the two doubly-fed wind generators from the upper surface of the experimental platform.
4. The experimental coupling device of a doubly-fed wind generator of claim 3, further comprising a transition disc, wherein the generator coupling is a direct-shaft motor coupling, and the transition disc and the generator coupling are positioned by using a seam allowance.
5. The experimental coupling device of claim 4, wherein the bearing seat assembly comprises a rotating shaft, and two end faces of the rotating shaft are provided with a first key groove and a rotating shaft mounting hole for connecting with the first bearing seat coupler and/or the second bearing seat coupler.
6. The experimental coupling device of a doubly-fed wind generator of claim 5, wherein the coupling of the first bearing block is provided with a second key groove, and the width and depth of the second key groove are matched with those of the first key groove.
7. The experimental coupling device of a doubly-fed wind generator of claim 6, wherein the dummy shaft end face is provided with a third key groove, the second bearing pedestal coupler end face is provided with a fourth key groove, and the third key groove and the fourth key groove have the same size and depth.
8. The test coupling device for the doubly-fed wind generator according to claim 7, wherein a speed measuring tooth is further arranged on the shaft side surface of the dummy shaft.
9. The experimental coupling device of a doubly-fed wind generator according to any of claims 3 to 8, characterized in that a base mounting hole is provided on the mounting base, a platform mounting groove is provided on the test platform, and the base mounting hole is matched with the platform mounting groove.
10. The experimental coupling device of a doubly-fed wind generator as claimed in claim 9, wherein the chair end of the bearing inner ring is provided with a flange.
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| CN202110817321.0A CN113533961A (en) | 2021-07-20 | 2021-07-20 | Double-fed wind driven generator test coupling device |
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| CN202110817321.0A CN113533961A (en) | 2021-07-20 | 2021-07-20 | Double-fed wind driven generator test coupling device |
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| CN115977888A (en) * | 2022-11-24 | 2023-04-18 | 若光若盐(南京)科技有限公司 | Double-wind-wheel double-speed-increasing-box wind generating set |
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