CN118225431A - Variable-pitch bearing testing device of wind generating set - Google Patents

Variable-pitch bearing testing device of wind generating set Download PDF

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Publication number
CN118225431A
CN118225431A CN202410515746.XA CN202410515746A CN118225431A CN 118225431 A CN118225431 A CN 118225431A CN 202410515746 A CN202410515746 A CN 202410515746A CN 118225431 A CN118225431 A CN 118225431A
Authority
CN
China
Prior art keywords
pitch bearing
motor
fixedly connected
variable
generating set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410515746.XA
Other languages
Chinese (zh)
Inventor
尚永亮
张永生
何亚平
王国峰
杨少帅
王煜博
康渊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaneng Huajialing Wind Power Co ltd
Huaneng Power International Inc
Original Assignee
Huaneng Huajialing Wind Power Co ltd
Huaneng Power International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaneng Huajialing Wind Power Co ltd, Huaneng Power International Inc filed Critical Huaneng Huajialing Wind Power Co ltd
Priority to CN202410515746.XA priority Critical patent/CN118225431A/en
Publication of CN118225431A publication Critical patent/CN118225431A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00—Testing of machine parts
    • G01M13/04—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention relates to the technical field of wind driven generator parts, in particular to a variable-pitch bearing testing device of a wind driven generator set. The utility model provides a wind generating set's variable pitch bearing testing arrangement include testboard, actuating device, check out test set and a plurality of flexible fixed equipment, the top of testboard is provided with variable pitch bearing, actuating device, flexible fixed equipment and check out test set, a plurality of flexible fixed equipment interval arrangement in the circumference of testboard, actuating device includes first motor, moving part and drive unit, the testboard is equipped with first adjustment tank, moving part is located first adjustment tank at least partially, and first motor links to each other with moving part, the output of first motor links to each other with drive unit's one end. The device for testing the variable-pitch bearings of the wind generating set can test variable-pitch bearings with different sizes, and improves detection efficiency.

Description

Variable-pitch bearing testing device of wind generating set
Technical Field
The invention relates to the technical field of wind driven generator parts, in particular to a variable-pitch bearing testing device of a wind driven generator set.
Background
The wind power generator is an electric device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate and finally outputs alternating current, and the wind power generator generally comprises a wind wheel, a generator (comprising a device), a direction regulator (a tail wing), a tower, a speed limiting safety mechanism, an energy storage device and other components.
At present, the variable pitch bearing is an important component in the wind generating set, and can drive the blades of the fan to turn and retract, so that the variable pitch bearing is usually subjected to a large amount of detection before leaving the factory, the rotating speed precision of the variable pitch bearing is ensured, the existing variable pitch bearing test equipment can only detect the variable pitch bearing of a single model, and the bearings of different sizes are required to adopt different equipment, and are complex in operation and poor in practicability.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a device for testing the variable-pitch bearings of a wind generating set, which can test variable-pitch bearings with different sizes and improve the detection efficiency.
The device for testing the variable pitch bearing of the wind generating set comprises the following components:
The top of the test bench is provided with a variable pitch bearing, a driving device, a telescopic fixing device and a plurality of telescopic fixing devices which are arranged at intervals in the circumferential direction of the test bench,
The driving device comprises a first motor, a moving part and a transmission part, wherein the test board is provided with a first adjusting groove, the moving part is at least partially positioned in the first adjusting groove, the first motor is connected with the moving part, the output end of the first motor is connected with one end of the transmission part, the other end of the transmission part penetrates through the moving part, the adjusting part is provided with a moving state and a locking state, in the moving state, the adjusting part moves in the first adjusting groove along the radial direction of the pitch bearing, and in the fixed state, the adjusting part is fixed relative to the first adjusting groove.
The device for testing the variable-pitch bearings of the wind generating set can test variable-pitch bearings with different sizes and improve detection efficiency.
In some embodiments, the adjusting component comprises an internal thread sleeve and an external thread sleeve, the external side of the output end of the first motor is fixedly connected with the external thread sleeve, the external side of the top of the transmission component is sleeved with the internal thread sleeve, and one end of the external thread sleeve is in threaded connection with the inside of the internal thread sleeve.
In some embodiments, the transmission part further comprises a transmission shaft, a gear part and a limiting part, one end of the transmission shaft is connected with the output end of the first driving motor, the transmission shaft penetrates through the adjusting part, the end, away from the adjusting part and the first driving motor, of the transmission shaft is sleeved with the limiting part, and the gear part is sleeved on the limiting part.
In some embodiments, the telescopic fixing device comprises a connecting seat, an electric cylinder and an arc clamping plate, wherein the connecting seat is fixedly connected to the top of the test bench, the electric cylinder is fixedly connected to the inside of the middle part of the connecting seat, and the arc clamping plate is fixedly connected to the output end of the electric cylinder.
In some embodiments, the telescopic fixing apparatus further comprises a protective rubber pad, and the inner side of the arc-shaped clamping plate is fixedly connected with the protective rubber pad.
In some embodiments, the detection device comprises a connecting frame, a second motor, a screw rod and a detection component, wherein one end of the top of the connecting frame is fixedly connected with the second motor, the output end of the second motor is fixedly connected with the screw rod, the top of the connecting frame is provided with a second adjusting groove, one end of the screw rod is rotationally connected to the inside of the second adjusting groove, the detection component is sleeved on the screw rod through threads, the detection component is movable relative to the screw rod in the extending direction of the second adjusting groove, and the detection end of the detection component faces the pitch bearing.
In some embodiments, the detection component comprises a moving sleeve, a connecting rod, a temperature sensor and a rotation speed sensor,
The outside threaded connection of lead screw has the removal cover, the bottom fixedly connected with connecting rod of removal cover, the bottom fixedly connected with connecting plate of connecting rod, just the inside of the outer wall laminating second adjustment tank bottom of connecting rod, the bottom fixedly connected with temperature sensor and the rotation speed sensor of connecting plate.
In some embodiments, the device for testing the variable pitch bearing of the wind generating set further comprises a controller, wherein the controller is fixedly connected to the top of one end of the test bench, and the first motor, the electric cylinder, the second motor, the temperature sensor and the rotating speed sensor are electrically connected with the controller.
In some embodiments, the device for testing the variable-pitch bearing of the wind generating set further comprises a protection pad, the protection pad is fixedly connected to the middle of the top of the test bench, the variable-pitch bearing is placed in the middle of the protection pad, and a third groove which is matched with the first adjusting groove is formed in the surface of the protection pad.
In some embodiments, lubricating oil is applied between the protective pad and the pitch bearing.
Drawings
FIG. 1 is a schematic diagram of a pitch bearing testing apparatus of a wind turbine generator system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a driving apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention.
Reference numerals:
The device comprises a test bench 1, a controller 2, a protection pad 3, a bearing body 4, a first adjusting groove 5, a gear piece 6, a connecting seat 7, an electric cylinder 8, an arc clamping plate 9, a connecting frame 10, a first motor 11, a transmission shaft 12, an inner thread sleeve 13, an outer thread sleeve 14, a second motor 15, a second adjusting groove 16, a screw rod 17, a movable sleeve 18, a connecting rod 19, a temperature sensor 20, a rotation speed sensor 21, a limiting piece 22, a pitch bearing inner ring 23 and a pitch bearing outer ring 24.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The device for testing the variable pitch bearing of the wind generating set comprises a test bench 1, a driving device, a detecting device and a plurality of telescopic fixing devices, wherein the variable pitch bearing, the driving device, the telescopic fixing devices and the detecting device are arranged at the top of the test bench 1, the plurality of telescopic fixing devices are arranged at intervals in the circumferential direction of the test bench 1,
The driving device comprises a first motor 11, a moving part and a transmission part, wherein the test bench 1 is provided with a first adjusting groove 5, the moving part is at least partially positioned in the first adjusting groove 5, the first motor 11 is connected with the moving part, the output end of the first motor 11 is connected with one end of the transmission part, the other end of the transmission part penetrates through the moving part, the adjusting part is in a moving state and a locking state, in the moving state, the adjusting part moves in the first adjusting groove 5 along the radial direction of the pitch bearing, and in the fixing state, the adjusting part is fixed relative to the first adjusting groove 5.
Specifically, as shown in fig. 1 to 3, the upper end surface of the test stand 1 is provided with a driving device, a detecting device and a plurality of telescopic fixing devices,
The lower end of the detection equipment is connected with the test bench 1, and the monitoring end of the detection equipment faces the variable-pitch bearing, so that the temperature of the inner ring of the variable-pitch bearing at different rotating speeds is monitored.
The lower end of the telescopic fixing device is connected with the upper end of the test bench 1, and the telescopic end of the telescopic fixing device stretches out and draws back in the radial direction of the pitch bearing to fix the pitch bearing. The telescoping end of the telescoping fixation device contacts the pitch bearing outer ring 24 to fix the outer ring.
The first motor 11 is located the below of testboard 1, and first motor 11 output links to each other with the drive unit lower extreme, and the moving part cover is established on the drive unit, and drive unit relative movement part is rotatable, and first adjustment tank 5 is stretched out to the drive unit upper end, and the moving part can remove or fix in the extending direction of first adjustment tank 5, and then makes drive unit contact with the inner ring of pitch bearing, and check out test set is suitable for detecting under the different rotational speeds, the temperature of pitch bearing.
In the moving state, the moving part moves in the extending direction of the first adjusting groove 5, so that the transmission part is contacted with the inner ring of the pitch bearing, and at the moment, the moving part is set to be in a fixed state, and the first motor 11 drives the transmission part to rotate, so that the pitch bearing is driven to rotate.
According to the variable-pitch bearing testing device of the wind generating set, the driving equipment, the detecting equipment and the telescopic fixing equipment are arranged above the test bench 1, and after the variable-pitch bearings are fixed, the variable-pitch bearings with different sizes can be tested, so that the detecting efficiency is improved.
In some embodiments, the adjusting component comprises an internal thread sleeve 13 and an external thread sleeve 14, the external side of the output end of the first motor 11 is fixedly connected with the external thread sleeve 14, the external side of the top of the transmission component is sleeved with the internal thread sleeve 13, and one end of the external thread sleeve 14 is in threaded connection with the inside of the internal thread sleeve 13.
Specifically, as shown in fig. 1 to 3, an external thread sleeve 14 is fixedly connected to the outer side of the output end of the first motor 11, an internal thread sleeve 13 is sleeved on the outer side of the top of the transmission part, and one end of the external thread sleeve 14 is in threaded connection with the inner part of the internal thread sleeve 13. And then can rotate internal thread cover 13 so that the upper end of first motor 11 contacts with the terminal surface under test bench 1, and internal thread cover 13 contacts with test bench 1 up end, and then fixes first motor 11, avoids first motor 11 to take place to rock when the output.
That is, before driving the variable-pitch bearing to rotate, the transmission part is moved relative to the first adjusting groove 5 according to the type of the variable-pitch bearing, after the transmission part approaches the variable-pitch bearing inner ring 23, the internal thread sleeve 13 is rotated, the internal thread sleeve 13 and the external thread sleeve 14 are screwed tightly, the positions of the first motor 11 and the transmission part can be fixed, then the first motor 11 can be started, the first motor 11 drives the transmission part to rotate, the variable-pitch bearing inner ring 23 is further rotated, the variable-pitch bearing inner ring 23 is driven to rotate, and then the test is started. The stability and the safety of the use of the variable-pitch bearing testing device of the wind generating set are improved.
In some embodiments, the transmission part further comprises a transmission shaft 12, a gear part 6 and a limiting part 22, one end of the transmission shaft 12 is connected with the output end of the first driving motor, the transmission shaft 12 penetrates through the adjusting part, the limiting part 22 is sleeved at one end, away from the adjusting part and the first driving motor, of the transmission shaft 12, and the gear part 6 is sleeved on the limiting part 22.
Specifically, as shown in fig. 1 to 3, the lower end of the transmission shaft 12 is connected to the output end of the first motor 11, the upper end of the transmission shaft 12 passes through the external thread sleeve 14 and the internal thread sleeve 13 along the up-down direction, the limiting piece 22 is sleeved on the upper end of the transmission shaft 12, the gear piece 6 is sleeved on the limiting piece 22, the limiting piece 22 is detachably connected to the transmission shaft 12, when the gear piece 6 is meshed with the pitch bearing, the internal thread sleeve 13 is rotated to screw the internal thread sleeve 13 and the external thread sleeve 14, so that the positions of the first motor 11 and the transmission shaft 12 can be fixed, then the first motor 11 can be started, the first motor 11 drives the transmission shaft 12 to rotate, then the spur gear rotates, and the inner ring of the pitch bearing is driven to rotate, namely, the test is started.
According to the device for testing the variable pitch bearing of the wind turbine generator system, the gear piece 6 is arranged, when the gear on the outer peripheral surface of the gear piece 6 is meshed with the gear on the inner ring 23 of the variable pitch bearing, the internal thread sleeve 13 is rotated, the internal thread sleeve 13 and the external thread sleeve 14 are screwed tightly, the positions of the first motor 11 and the transmission shaft 12 can be fixed, and the stability and safety of testing are improved.
In some embodiments, the telescopic fixing device comprises a connecting seat 7, an electric cylinder 8 and an arc clamping plate 9, wherein the connecting seat 7 is fixedly connected to the top of the test bench 1, the electric cylinder 8 is fixedly connected to the inside of the middle part of the connecting seat 7, and the arc clamping plate 9 is fixedly connected to the output end of the electric cylinder 8.
Specifically, as shown in fig. 1 to 3, an electric cylinder 8 is fixedly connected to the inside of the middle part of the connecting seat 7, an arc clamping plate 9 is fixedly connected to the output end of the electric cylinder 8, and then the outer ring 24 of the variable-pitch bearing is conveniently contacted, the outer ring 24 of the variable-pitch bearing is fixed and limited, the movement of the variable-pitch bearing during testing is avoided, and the use stability and safety of the variable-pitch bearing are improved.
Further, the number of the telescopic fixing devices can be two, the telescopic fixing devices are fixedly connected to the two ends of the test bench 1 in the left-right direction, or the number of the telescopic fixing devices can be four, so that stability and safety of fixing the variable-pitch bearing are improved conveniently.
Further, the telescopic fixing device further comprises a protective rubber mat, and the inner side of the arc clamping plate 9 is fixedly connected with the protective rubber mat. The friction force between the telescopic fixing equipment and the variable-pitch bearing can be increased, so that the stability and safety of fixing the variable-pitch bearing are improved.
In some embodiments, the detection device comprises a connecting frame 10, a second motor 15, a screw rod 17 and a detection component, wherein one end of the top of the connecting frame 10 is fixedly connected with the second motor 15, the output end of the second motor 15 is fixedly connected with the screw rod 17, the top of the connecting frame 10 is provided with a second adjusting groove 16, one end of the screw rod 17 is rotationally connected to the inside of the second adjusting groove 16, the detection component is sleeved on the screw rod 17 through threads, the detection component is movable relative to the screw rod 17 in the extending direction of the second adjusting groove 16, and the detection end of the detection component faces the pitch bearing.
Specifically, as shown in fig. 1 to 3, the lower end of the connecting frame 10 is connected with the upper end of the test bench 1, a second adjusting groove 16 is separately provided at the top of the connecting frame 10, that is, the upper end of the connecting frame 10, one end of the second motor 15 is connected with the connecting frame 10, the output end of the second motor 15 is connected with a screw rod 17, the screw rod 17 is arranged in the second adjusting groove 16, the screw rod 17 rotates in the second adjusting groove 16, and further drives a threaded sleeve to rotate relative to the screw rod 17, the upper end of the detecting component is connected with the threaded sleeve, the detecting component is further contacted with the inner wall surface of the second adjusting groove 16, and further when the screw rod 17 rotates, the threaded sleeve drives the detecting component to move in the extending direction of the second adjusting groove 16 so as to detect variable pitch bearings with different sizes.
In some embodiments, the detection means comprise a mobile sleeve 18, a connecting rod 19, a temperature sensor 20 and a rotation speed sensor 21,
The outside threaded connection of lead screw 17 has movable sleeve 18, and movable sleeve 18's bottom fixedly connected with connecting rod 19, connecting rod 19's bottom fixedly connected with connecting plate, and the inside of the outer wall laminating second adjustment tank 16 bottom of connecting rod 19, the bottom fixedly connected with temperature sensor 20 and rotational speed sensor 21 of connecting plate.
Specifically, as shown in fig. 1 to 3, the detection device includes a connecting frame 10, one end of the top of the connecting frame 10 is fixedly connected with a second motor 15, an output end of the second motor 15 is fixedly connected with a screw rod 17, a second adjusting groove 16 is provided at the top of the connecting frame 10, and one end of the screw rod 17 is rotatably connected to the inside of the second adjusting groove 16.
The outside threaded connection of lead screw 17 has movable sleeve 18, and movable sleeve 18's bottom fixedly connected with connecting rod 19, connecting rod 19's bottom fixedly connected with connecting plate, and connecting rod 19's outer wall laminating second adjustment tank 16 bottom's inside, because connecting rod 19 outer wall amount laminating second adjustment tank 16 inner wall, can be spacing to movable sleeve 18, makes it follow lead screw 17 rectilinear motion, and connecting plate's bottom fixedly connected with temperature sensor 20 and rotation speed sensor 21.
The second motor 15 is operated to make the movable sleeve 18 move linearly along the screw rod 17 to move according to the radius of the variable pitch bearing with different types, the temperature sensor 20 and the rotation speed sensor 21 are moved above the inner ring 23 of the variable pitch bearing to detect, during the detection period, the rotation speed sensor 21 can upload the rotation speed of the inner ring 23 of the variable pitch bearing in real time, and the temperature sensor 20 can upload the temperature of the variable pitch bearing in real time, so that the controller 2 records the temperature data of the variable pitch bearing under each rotation speed.
In some embodiments, the device for testing the variable pitch bearing of the wind generating set further comprises a controller 2, wherein the controller 2 is fixedly connected to the top of one end of the test stand 1, and the first motor 11, the electric cylinder 8, the second motor 15, the temperature sensor 20 and the rotation speed sensor 21 are all electrically connected with the controller 2. An operator can control the rotating speed of the first motor 11 through the controller 2, the rotating angle of the second motor 15 to adjust the position of the detection equipment, or the controller 2 is provided with a display screen to display the rotating speed and the temperature of the inner ring 23 of the variable-pitch bearing in real time.
Specifically, as shown in fig. 1 to 3, the top of one end of the test bench 1 is fixedly connected with a controller 2, and the first motor 11, the electric cylinder 8, the second motor 15, the temperature sensor 20 and the rotation speed sensor 21 are all electrically connected with the controller 2.
The middle part fixedly connected with protection pad 3 at testboard 1 top, become oar bearing and place in the middle part of protection pad 3, and protection pad 3 surface offer with first adjustment groove 5 identical groove, because become oar bearing need keep flat to testboard 1 on, protection pad 3 can effectively protect the side surface of becoming the oar bearing, prevent to become the surface damage of oar bearing.
Further, the device for testing the variable-pitch bearing of the wind generating set further comprises a protection pad 3, the middle part of the top of the test bench 1 is fixedly connected with the protection pad 3, the variable-pitch bearing is arranged in the middle part of the protection pad 3, and a third groove which is matched with the first adjusting groove 5 is formed in the surface of the protection pad 3. The third slot facilitates the extension of the drive shaft 12 out of the first adjustment slot 5. And then be convenient for remove and fix moving part, improve stability and the security of test.
Further, lubricating oil is coated between the protective pad 3 and the pitch bearing. And the abnormal test result caused by friction between the inner ring and the protective pad 3 is avoided. Further, the protective pad 3 corresponding to the inner ring can be coated with lubricating oil. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. The utility model provides a wind generating set's variable pitch bearing testing arrangement which characterized in that includes:
The top of the test bench is provided with a variable pitch bearing, a driving device, a telescopic fixing device and a plurality of telescopic fixing devices which are arranged at intervals in the circumferential direction of the test bench,
The driving device comprises a first motor, a moving part and a transmission part, wherein the test board is provided with a first adjusting groove, the moving part is at least partially positioned in the first adjusting groove, the first motor is connected with the moving part, the output end of the first motor is connected with one end of the transmission part, the other end of the transmission part penetrates through the moving part, the adjusting part is provided with a moving state and a locking state, in the moving state, the adjusting part moves in the first adjusting groove along the radial direction of the pitch bearing, and in the fixed state, the adjusting part is fixed relative to the first adjusting groove.
2. The device for testing the variable pitch bearing of the wind generating set according to claim 1, wherein the adjusting component comprises an inner thread sleeve and an outer thread sleeve, the outer side of the output end of the first motor is fixedly connected with the outer thread sleeve, the outer side of the top of the transmission component is sleeved with the inner thread sleeve, and one end of the outer thread sleeve is in threaded connection with the inner part of the inner thread sleeve.
3. The device for testing the variable pitch bearing of the wind generating set according to claim 2, wherein the transmission part further comprises a transmission shaft, a gear part and a limiting part, one end of the transmission shaft is connected with the output end of the first driving motor, the transmission shaft penetrates through the adjusting part, the limiting part is sleeved at one end, far away from the adjusting part and the first driving motor, of the transmission shaft, and the gear part is sleeved on the limiting part.
4. The device for testing the variable pitch bearing of the wind generating set according to claim 3, wherein the telescopic fixing device comprises a connecting seat, an electric cylinder and an arc clamping plate, the connecting seat is fixedly connected to the top of the test bench, the electric cylinder is fixedly connected to the inside of the middle part of the connecting seat, and the arc clamping plate is fixedly connected to the output end of the electric cylinder.
5. The device for testing the variable pitch bearing of the wind generating set according to claim 4, wherein the telescopic fixing device further comprises a protective rubber mat, and the inner side of the arc-shaped clamping plate is fixedly connected with the protective rubber mat.
6. The device for testing the variable pitch bearing of the wind generating set according to claim 3, wherein the detecting equipment comprises a connecting frame, a second motor, a screw rod and a detecting component, one end of the top of the connecting frame is fixedly connected with the second motor, the output end of the second motor is fixedly connected with the screw rod, a second adjusting groove is formed in the top of the connecting frame, one end of the screw rod is rotationally connected to the inside of the second adjusting groove, the detecting component is sleeved on the screw rod through threads, the detecting component is movable relative to the screw rod in the extending direction of the second adjusting groove, and the detecting end of the detecting component faces the variable pitch bearing.
7. The device for testing the variable pitch bearing of the wind generating set according to claim 6, wherein the detecting component comprises a moving sleeve, a connecting rod, a temperature sensor and a rotating speed sensor,
The outside threaded connection of lead screw has the removal cover, the bottom fixedly connected with connecting rod of removal cover, the bottom fixedly connected with connecting plate of connecting rod, just the inside of the outer wall laminating second adjustment tank bottom of connecting rod, the bottom fixedly connected with temperature sensor and the rotation speed sensor of connecting plate.
8. The device for testing the variable pitch bearing of the wind generating set according to claim 7, further comprising a controller, wherein the controller is fixedly connected to the top of one end of the test stand, and the first motor, the electric cylinder, the second motor, the temperature sensor and the rotation speed sensor are all electrically connected with the controller.
9. The device for testing the variable-pitch bearing of the wind generating set according to claim 3, further comprising a protection pad, wherein the protection pad is fixedly connected to the middle part of the top of the test bench, the variable-pitch bearing is arranged in the middle part of the protection pad, and a third groove which is matched with the first adjusting groove is formed in the surface of the protection pad.
10. The device for testing the pitch bearing of the wind generating set according to claim 9, wherein lubricating oil is applied between the protective pad and the pitch bearing.
CN202410515746.XA 2024-04-26 2024-04-26 Variable-pitch bearing testing device of wind generating set Pending CN118225431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410515746.XA CN118225431A (en) 2024-04-26 2024-04-26 Variable-pitch bearing testing device of wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410515746.XA CN118225431A (en) 2024-04-26 2024-04-26 Variable-pitch bearing testing device of wind generating set

Publications (1)

Publication Number Publication Date
CN118225431A true CN118225431A (en) 2024-06-21

Family

ID=91511215

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410515746.XA Pending CN118225431A (en) 2024-04-26 2024-04-26 Variable-pitch bearing testing device of wind generating set

Country Status (1)

Country Link
CN (1) CN118225431A (en)

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