Wind turbine coupling slip fault detection device

Abstract

The present invention discloses a device for detecting the slipping fault of a coupling of a wind turbine generator, which belongs to the field of safety guarantee equipment for wind turbine generators. The device includes collar gears, and collar gears are sleeved on the shaft bodies on both sides of the coupling. The collar gears are fixed to the shaft bodies. The device further includes a bearing base, which is located below the coupling. A first transmission support assembly and a second transmission support assembly are fixed on the bearing base. A slipping feedback assembly is arranged between the first transmission support assembly and the second transmission support assembly. When there is a differential speed between the rotation of the shaft body on the first transmission support assembly and the rotation of the shaft body on the second transmission support assembly, the slipping feedback assembly gives an alarm. By utilizing the phenomenon that there is a speed difference in the rotation speeds of the shaft bodies on both sides of the coupling when a slipping fault occurs, the present invention effectively feedbacks the slipping fault of the coupling, thereby ensuring the safety of the coupling of the wind turbine generator.

Description

Technical Field

[0001] The present invention relates to the field of safety guarantee equipment for couplings of wind turbine generators, and specifically to a device for detecting the slipping fault of a coupling of a wind turbine generator. Background Art

[0002] When a wind turbine generator is operating normally, the shaft bodies on both sides of the coupling will maintain a rotating state, and at this time, the rotation of the shaft bodies is synchronous. Therefore, the coupling of the wind turbine generator is an important component for transmitting the torque between the speed increaser and the generator. When the torque fluctuates significantly, the torque limiter of the coupling will slip to protect the speed increaser and the generator on the transmission chain from being damaged by impact loads. At the same time, when the cumulative slipping angle exceeds a certain angle, the torque limiter of the coupling will be worn, resulting in a decline in the torque transmission performance, and then it will no longer be able to continuously transmit torque, and needs to be replaced in time.

[0003] However, the slipping fault of the coupling cannot be effectively observed. But for the safe operation of the wind turbine generator, the slipping fault of the coupling needs to be timely feedback. Therefore, how to detect the slipping fault of the coupling has become an urgent problem to be solved in the field of safety guarantee equipment for couplings of wind turbine generators. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defect that in the prior art, due to the inability to observe, when the coupling has a slipping fault, it can only be found by calculating data fluctuations, resulting in the inability to timely feedback the slipping fault, which increases the safety risk of the wind turbine generator. The present invention provides a device for detecting the slipping fault of a coupling of a wind turbine generator, which effectively feedbacks the slipping fault of the coupling by using the phenomenon that there is a speed difference in the rotational speeds of the shaft bodies on both sides of the coupling when the slipping fault occurs, thereby ensuring the safety of the coupling of the wind turbine generator.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A device for detecting the slipping fault of a coupling of a wind turbine generator includes a collar gear, and the collar gear is sleeved on the shaft bodies on both sides of the coupling, and the collar gear is fixed to the shaft body.

[0007] It further includes a bearing base, the bearing base is located below the coupling, and a first transmission support assembly and a second transmission support assembly are fixed on the bearing base, and a slipping feedback assembly is arranged between the first transmission support assembly and the second transmission support assembly.

[0008] The structures of the first transmission support assembly and the second transmission support assembly are the same.

[0009] The first transmission support assembly is located below one of the shaft bodies, the second transmission support assembly is located below the other shaft body, and the slip feedback assembly is respectively connected to the first transmission support assembly and the second transmission support assembly: when there is a differential speed between the rotation of the shaft body on the first transmission support assembly and the rotation of the shaft body on the second transmission support assembly, the slip feedback assembly issues an alarm.

[0010] Currently, during the operation of a wind turbine generator set, a coupling is used to connect the shaft bodies on both sides and transmit power. The shaft bodies on both sides of the coupling will rotate. During normal operation, the rotational speeds of the shaft bodies on both sides of the coupling are basically the same. At this time, the coupling can effectively transmit torque. If the coupling slips, it means that there is a difference in the rotational speeds of the shaft bodies on both sides of the coupling. At this time, the torque transmission is interrupted, so the coupling will be damaged, and the normal operation of the wind turbine generator set will be seriously affected.

[0011] In the prior art, the discovery of the slipping phenomenon mainly relies on the abnormal fluctuations of third-party data, such as the abnormal fluctuations of power generation data, etc., so as to use the abnormal data to inversely deduce and check whether the coupling slips. The method in the prior art has low efficiency and there is a risk of misdiagnosis, resulting in the problem of expanding damage.

[0012] In the present invention, by sleeving and fixing the ring gear on the shaft bodies on both sides of the coupling, the rotation of the shaft body is fed back to the first transmission support assembly and the second transmission support assembly through the ring gear, and the rotational speeds received by the first transmission support assembly and the second transmission support assembly can be effectively unified through the unified outer diameter specifications of the ring gears, so that both the first transmission support assembly and the second transmission support assembly can effectively transmit the actual rotational speed of the shaft body to the slip feedback assembly;

[0013] Both sides of the slip feedback assembly can receive the rotational speeds of the shaft bodies on both sides of the coupling. When the rotational speeds of the two shaft bodies are normal, there is no speed difference between the first transmission support assembly and the second transmission support assembly at the slip feedback assembly. At this time, the slip feedback assembly does not alarm. When there is a difference in the rotational speeds of the two shaft bodies, it proves that there is a differential speed in the rotation of the shaft bodies on both sides of the coupling at the coupling position. At this time, the coupling cannot effectively transmit torque and slips, and the slip feedback assembly issues an alarm.

[0014] When the slippage phenomenon occurs, there will be a rotational speed difference between the shafts on both sides of the coupling. According to this actual situation, the first transmission support assembly and the second transmission support assembly effectively collect the differential speed of the shafts, and the slippage feedback assembly effectively warns the staff of the slippage phenomenon through an alarm, so that the staff can effectively handle the slippage problem immediately and avoid more serious damage.

[0015] Further, the slippage feedback assembly includes a first transmission shaft and a second transmission shaft. The first transmission shaft is connected to the first transmission support assembly, and the second transmission shaft is connected to the second transmission support assembly. The rotation of the shaft on the first transmission support assembly can drive the rotation of the first transmission shaft, and the rotation of the shaft on the second transmission support assembly can drive the rotation of the second transmission shaft.

[0016] A differential speed feedback assembly is provided between the first transmission shaft and the second transmission shaft, and a differential speed alarm assembly is provided on the differential speed feedback assembly. When there is a differential speed between the rotation of the first transmission shaft and the rotation of the second transmission shaft, the differential speed alarm assembly emits an alarm.

[0017] In the present invention, the first transmission shaft is used to connect the first transmission support assembly, and the first transmission support assembly can transmit the rotation of the ring gear to the first transmission shaft, so as to effectively feedback the rotation state of the shaft on the first transmission support assembly. Similarly, the second transmission support assembly can also transmit the rotation state of the shaft on the other side to the second transmission shaft.

[0018] Both the first transmission shaft and the second transmission shaft are connected to the differential speed feedback assembly, and the differential speed feedback assembly is used to emit an alarm when there is a differential speed between the first transmission shaft and the second transmission shaft.

[0019] Further, the differential speed alarm assembly includes a first sun gear and a second sun gear. The first sun gear is fixed to the first transmission shaft, the second sun gear is fixed to the second transmission shaft, and the axes of the first sun gear and the second sun gear coincide.

[0020] A first sleeve and a side rotating disc are sleeved on the first transmission shaft. The first sleeve is fixed to the side rotating disc. The side rotating disc is provided with a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are symmetric with respect to the axis of the first sun gear.

[0021] A first planetary gear is rotatably connected to the first connecting plate, and a second planetary gear is rotatably connected to the second connecting plate. Both the first planetary gear and the second planetary gear are meshed with the first sun gear and the second sun gear.

[0022] In the present invention, the first sun gear is connected to the first transmission shaft, and the second sun gear is connected to the second transmission shaft. When the rotational speeds of the first transmission shaft and the second transmission shaft are the same, the shaft bodies on both sides of the coupling rotate synchronously. At this time, the first sun gear and the second sun gear can drive the engaged first planet gear and second planet gear to perform circumferential rotation around the axis of the first sun gear. Since there is no differential at this time, the first planet gear and the second planet gear will not rotate on their own.

[0023] The first connecting plate provides a support basis for the first planet gear, the second connecting plate provides a support basis for the second planet gear, and the side rotating disc is used to carry the first connecting plate and the second connecting plate, so that the circumferential rotation of the first planet gear and the second planet gear around the axis of the first sun gear can be synchronized. The first sleeve is used to limit the side rotating disc and assist the free rotation of the side rotating disc on the first transmission shaft.

[0024] When there is a speed difference between the shaft bodies on both sides of the coupling, the first planet gear and / or the second planet gear will continue to rotate synchronously around the axis of the first sun gear under the limitation of the first connecting plate and the second connecting plate. Since the first transmission shaft and the second transmission shaft will simultaneously follow the speed difference of the shaft bodies, there will be a speed difference between the first sun gear and the second sun gear. Therefore, the first planet gear and the second planet gear will digest the speed difference between the first sun gear and the second sun gear by rotating on their own, so as not to affect the rotation of the first transmission shaft and the second transmission shaft.

[0025] When the first planet gear and / or the second planet gear starts to rotate, it proves that the coupling has slipped, and at this time, the differential alarm component issues an alarm.

[0026] Further, a second sleeve is sleeved on the second transmission shaft, and a first connecting rod and a second connecting rod are fixed on the second sleeve. The first connecting rod extends and is fixed to the first connecting plate, and the second connecting rod extends and is fixed to the second connecting plate.

[0027] In the present invention, the second sleeve sleeved on the second transmission shaft can rotate freely on the second transmission shaft, so that the first planetary gear and the second planetary gear can be synchronized without restricting the rotation of the second transmission shaft, and can provide sufficient basic load for the first planetary gear and the second planetary gear, so that the meshing of the first planetary gear, the second planetary gear and the first sun gear and the second sun gear will not be stuck, so that the speed difference between the first transmission shaft and the second transmission shaft is only reflected in the rotation speed of the first planetary gear and the second planetary gear. The faster the rotation speed of the first planetary gear and the second planetary gear is, the greater the rotation speed difference between the first transmission shaft and the second transmission shaft is, which means that the slippage of the coupling is more serious.

[0028] Furthermore, a first rotation alarm component is provided on the first connecting plate, and the first planetary gear is rotationally connected to the first rotation alarm component: when the first planetary gear rotates, the first rotation alarm component sends out an alarm;

[0029] The second connecting plate is provided with a second rotation alarm component, and the second planetary gear is rotationally connected to the second rotation alarm component: when the second planetary gear rotates, the second rotation alarm component sends out an alarm;

[0030] The first rotation alarm component and the second rotation alarm component have the same structure.

[0031] In the present invention, the first rotation alarm component is used to detect whether the first planetary gear and the second planetary gear rotate. If the first planetary gear and / or the second planetary gear rotates, the first rotation alarm component is controlled to sound an alarm.

[0032] Furthermore, the first rotation alarm component includes a component housing, a rotation rod is fixed on the first planetary gear, and the rotation rod passes through the first connecting plate and extends into the component housing;

[0033] A plurality of sound generating chambers are provided in the housing of the component, and the sound generating chambers are distributed circumferentially around the rotating rod;

[0034] The sound-generating chamber comprises a resonance cavity, a notch is provided on a side of the resonance cavity facing the rotating rod, and a string body is fixed at the notch;

[0035] A plectrum is fixed on the rotating rod, and the plectrum is used to pluck the string body.

[0036] In the present invention, the rotating rod is used to transmit the rotation condition of the first planetary gear into the component housing. The resonance cavity in the sound generating chamber can emit sound through resonance when the string body is fluctuated. At this time, if the first planetary gear rotates, the rotating rod controls the pick to pluck the string body, and the sound generating chamber emits an alarm sound through the vibration of the string body;

[0037] In the present invention, by providing a plurality of sound generating chambers circumferentially surrounding the rotating rod, the frequency of sound generation is positively correlated with the rotation speed of the rotating rod. Therefore, when the slipping phenomenon occurs, the severity can be determined according to the speed of the string plucking. The vibration frequency of the string plucking can be changed by means of existing technologies such as material selection and resonance cavity shape, so as to avoid affecting the wind turbine generator set and also avoid the mechanical vibration frequency of the wind turbine generator set, thereby enhancing the recognizability of the string plucking sound and enhancing the warning effect of the alarm.

[0038] Further, the first transmission support assembly includes a support housing, and an arc-shaped groove is provided at the top of the support housing, and the arc-shaped groove can partially accommodate the ring gear;

[0039] A rotating gear is provided in the support housing, and the top of the rotating gear penetrates through the support housing and meshes with the ring gear;

[0040] An end bearing is connected to the end face of the rotating gear facing away from the slipping feedback assembly, a support column is fixed to the bottom of the end bearing, the support column extends and is fixed into the bearing base, and the other end face of the rotating gear is connected to the slipping feedback assembly.

[0041] In the present invention, the support housing in the first support assembly is used to protect the internal structure, the arc-shaped groove is used to accommodate the ring gear, the rotation of the shaft body is transmitted to the first transmission shaft through the meshing of the ring gear and the rotating gear, and through the bearing of the end bearing, the support column can support the first transmission shaft and the first transmission shaft can still rotate freely effectively.

[0042] Further, a plurality of inclined support rods are provided on the side of the end bearing. One end of the inclined support rod is fixed to the support housing, and a connection end is fixed to the other end thereof. The connection end is hinged to the end bearing;

[0043] An elastic support is provided between the connection ends. The connection ends are all fixed to the elastic support, and the elastic support is in contact with the end bearing.

[0044] In the present invention, the side of the end bearing is strengthened in stability by a number of inclined support rods, so that the first transmission shaft can rotate more stably. The elastic support is used to play a safety guarantee role. When the support of the support column for the end bearing is unstable, the elastic support between the articulated inclined support rods and the inclined support rods can effectively prevent the end bearing from falling, so that the structural safety of the first transmission shaft can still be guaranteed in the case of the collapse of the support column, thereby enhancing the overall safety of the present invention.

[0045] Furthermore, there is a rotational clearance between the arc-shaped groove and the collar gear: the collar gear can rotate freely, and when the collar gear rotates, it can drive the rotating gear to rotate.

[0046] In the present invention, the rotational clearance between the arc-shaped groove and the collar gear is used to prevent the rotation of the collar gear or the rotating gear from being affected, thereby playing a role in ensuring the normal meshing of the rotating gear and the collar gear. The normal support of the shaft body and the coupling in the present invention is prior art, so it is easy to control the rotational clearance between the collar gear and the arc-shaped groove on this basis.

[0047] Furthermore, the bearing base includes a number of elastic filling layers, and the elastic filling layers fill the bearing base;

[0048] The elastic filling layer includes a first filling block and a second filling block. The elastic expansion and contraction direction of the first filling block is perpendicular to the elastic expansion and contraction direction of the second filling block, and the first filling block and the second filling block are arranged in an alternating manner.

[0049] In the present invention, the elastic filling layer in the bearing base makes the force on the elastic filling layer more uniform due to the perpendicularity of the first filling block and the second filling block. When subjected to a large weight pressure, it can also effectively prevent the pressed object from rolling over, thereby effectively enhancing the bearing capacity of the bearing base in the present invention.

[0050] The first filling block and the second filling block are arranged in an alternating manner: the elastic fillings adjacent to the first filling block in all directions are preferentially set as the second filling block, and the elastic fillings adjacent to the second filling block in all directions are preferentially set as the first filling block, so that the elastic expansion and contraction directions of the first filling block and the second filling block can be complementary, achieving the purpose of enhancing the bearing capacity of the bearing base.

[0051] In summary, the present invention has the following beneficial effects compared with the prior art:

[0052] In the present invention, both sides of the slip feedback component can receive the shaft rotation speeds on both sides of the coupling. When the rotation speeds of the two shafts are normal, there is no speed difference between the first transmission support component and the second transmission support component at the slip feedback component. At this time, the slip feedback component does not alarm. When there is a difference in the rotation speeds of the two shafts, it proves that at the coupling position, there is a speed difference in the shaft rotation on both sides of the coupling. At this time, the coupling cannot effectively transmit torque, slippage occurs, and the slip feedback component issues an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0054] Figure 1 It is a schematic diagram of the structure of the present invention;

[0055] Figure 2 It is a side sectional view of the present invention;

[0056] Figure 3 This is a schematic diagram of the structure of the slip feedback component of the present invention;

[0057] Figure 4 This is a schematic diagram of the installation structure of the first rotation alarm component, the first planetary gear, and the first connecting plate of the present invention;

[0058] The reference numerals in the drawings of the present invention represent: 1, shaft body; 2, collar gear; 3, coupling; 4, first transmission support assembly; 5, slip feedback assembly; 6, bearing base; 7, second transmission support assembly; 41, rotation gap; 42, arc groove; 43, rotating gear; 44, support shell; 45, end bearing; 46, connecting end; 47, elastic support; 48, pillar; 49, oblique support rod; 51, first transmission shaft; 521, side rotating disk; 522, first sleeve; 53, first sun gear; 54, first planetary gear; 55, first connecting plate; 56. First intermediate bearing; 57. First rotation alarm assembly; 58. Second planetary gear; 59. Second intermediate bearing; 510. Second connecting plate; 511. Second rotation alarm assembly; 512. Second connecting rod; 513. Second sleeve; 514. First connecting rod; 515. Second transmission shaft; 571. Assembly housing; 572. String body; 573. Notch; 574. Sounding chamber; 575. Resonance chamber; 576. Rotating rod; 577. Pick; 61. Base housing; 62. Elastic filling layer; 621. First filling block; 622. Second filling block. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments and drawings. The illustrative embodiments and descriptions thereof of the present invention are only used to explain the present invention and are not intended to limit the present invention. Embodiment

[0060] As Figures 1 to 4 shown, this embodiment relates to a wind turbine coupling slip fault detection device, including a collar gear 2. The collar gears 2 are sleeved on the shaft bodies 1 on both sides of the coupling 3, and the collar gears 2 are fixed to the shaft bodies 1.

[0061] It further includes a bearing base 6. The bearing base 6 is located below the coupling 3. A first transmission support assembly 4 and a second transmission support assembly 7 are fixed on the bearing base 6. A slip feedback assembly 5 is provided between the first transmission support assembly 4 and the second transmission support assembly 7.

[0062] The structures of the first transmission support assembly 4 and the second transmission support assembly are the same.

[0063] The first transmission support assembly 4 is located below one of the shaft bodies 1, and the second transmission support assembly 7 is located below the other shaft body 1. The slip feedback assembly 5 is respectively connected to the first transmission support assembly 4 and the second transmission support assembly: when there is a differential speed between the rotation of the shaft body 1 on the first transmission support assembly 4 and the rotation of the shaft body 1 on the second transmission support assembly, the slip feedback assembly 5 issues an alarm.

[0064] In the actual application of this embodiment, the bearing base 6 is used to bear the overall weight of this embodiment. When the coupling 3 starts to work normally, the shaft bodies 1 on both sides of the coupling 3 rotate normally, and the shaft bodies 1 and the coupling 3 complete the work normally relying on the existing technology. This embodiment detects and alarms the slip fault of the coupling 3 based on the normal work of the coupling 3 and the shaft bodies 1.

[0065] The first transmission support assembly 4 is used to detect the rotation speed of one of the shaft bodies 1, and the second transmission support assembly 7 is used to detect the rotation speed of the other shaft body 1. When the rotation speeds of the shaft bodies 1 on both sides of the coupling 3 are stable, there is no speed difference, so that the slip feedback assembly 5 is in a stable state and no alarm is issued at this time.

[0066] When the rotation speeds of the shaft bodies 1 on both sides of the coupling 3 change suddenly, it indicates that there is a fault in the torque transmission between the shaft bodies 1, proving that the coupling 3 has a slip phenomenon. At this time, there is a speed difference in the rotation speeds of the shaft bodies 1 received by the first transmission support assembly 4 and the second transmission support assembly 7. The greater the speed difference, the more serious the slip fault. At this time, the slip feedback assembly 5 issues an alarm.

[0067] In this embodiment, by detecting the rotational speeds of the shaft bodies 1 on both sides of the coupling 3 through the first transmission support assembly 4 and the second transmission support assembly 7, the rotational speed difference between the shaft bodies 1 on both sides of the coupling 3 can be effectively presented at the slip feedback assembly 5. The slip feedback assembly 5 can determine whether there is a slip phenomenon at the position of the coupling 3 through the speed difference, and thus immediately give a treatment measure to avoid the deterioration of the slip fault situation.

[0068] Further, the slip feedback assembly 5 includes a first transmission shaft 51 and a second transmission shaft 515. The first transmission shaft 51 is connected to the first transmission support assembly 4, and the second transmission shaft 515 is connected to the second transmission support assembly 7. The rotation of the shaft body 1 on the first transmission support assembly 4 can drive the rotation of the first transmission shaft 51, and the rotation of the shaft body 1 on the second transmission support assembly 7 can drive the rotation of the second transmission shaft 515.

[0069] A differential feedback assembly is provided between the first transmission shaft 51 and the second transmission shaft 515, and a differential alarm assembly is provided on the differential feedback assembly. When there is a differential between the rotation of the first transmission shaft 51 and the rotation of the second transmission shaft 515, the differential alarm assembly gives an alarm.

[0070] In this embodiment, the first transmission shaft 51 and the second transmission shaft 515 are used to transfer the rotation of the two shaft bodies 1 to the rotation of the first transmission shaft 51 and the rotation of the second transmission shaft 515 through the sleeve gear 2. Therefore, the speed difference between the two shaft bodies 1 can be effectively converted into the speed difference between the rotation of the first transmission shaft 51 and the rotation of the second transmission shaft 515, and then the rotation speed difference between the first transmission shaft 51 and the second transmission shaft 515 can be effectively feedback through the differential feedback assembly. When there is a differential, the differential alarm assembly can give an alarm to alarm the slip phenomenon.

[0071] Further, the differential alarm assembly includes a first sun gear 53 and a second sun gear. The first sun gear 53 is fixed to the first transmission shaft 51, the second sun gear is fixed to the second transmission shaft 515, and the axes of the first sun gear 53 and the second sun gear coincide.

[0072] A first sleeve 522 and a side rotating disk 521 are sleeved on the first transmission shaft 51. The first sleeve 522 is fixed to the side rotating disk 521. The side rotating disk 521 is provided with a first connecting plate 55 and a second connecting plate 510, and the first connecting plate 55 and the second connecting plate 510 are symmetric with respect to the axis of the first sun gear 53.

[0073] A first planetary gear 54 is rotatably connected to the first connecting plate 55, and a second planetary gear 58 is rotatably connected to the second connecting plate 510. Both the first planetary gear 54 and the second planetary gear 58 mesh with the first sun gear 53 and the second sun gear.

[0074] In this embodiment, the rotation of the ring gear 2 can effectively drive the rotation of the first transmission shaft 51 and the second transmission shaft 515 through the meshing relationship. When the first transmission shaft 51 rotates, it will drive the first sun gear 53 to rotate. When the second transmission shaft 515 rotates, it will drive the second sun gear to rotate. Also, due to the meshing relationship between the first planetary gear 54 and the second planetary gear 58 and the first sun gear 53 and the second sun gear, when the first sun gear 53 and the second sun gear rotate, they will drive the first planetary gear 54 and the second planetary gear 58 to rotate circumferentially around the axis of the first sun gear 53. At this time, if the rotational speeds of the first transmission shaft 51 and the second transmission shaft 515 are the same, that is, no slipping occurs, then the first planetary gear 54 and the second planetary gear 58 will not rotate on their own axes.

[0075] When there is a speed difference between the first transmission shaft 51 and the second transmission shaft 515, that is, the coupling 3 slips, at this time, the first planetary gear 54 and the second planetary gear 58 can balance the speed difference through self-rotation, so that the first planetary gear 54 and the second planetary gear 58 can rotate circumferentially around the axis of the first sun gear 53 and avoid jamming during the rotation process through self-rotation.

[0076] In this embodiment, a corresponding alarm device is provided on the differential alarm assembly. When the first planetary gear 54 and the second planetary gear 58 rotate on their own axes, that is, when slipping occurs. When the coupling 3 slips, there are differences in the severity of the slipping fault. When the slipping first appears, the rotational speed difference between the shaft bodies 1 on both sides of the coupling 3 has not yet widened. At this time, there is a speed difference between the first transmission shaft 51 and the second transmission shaft 515, but the speed difference is not large. Therefore, the alarm level issued by the differential alarm assembly can be relatively low. If the speed difference becomes larger, the alarm level can be increased, so as to effectively distinguish the severity of the slipping fault and achieve the purpose of selecting corresponding countermeasures.

[0077] Further, a second sleeve 513 is sleeved on the second transmission shaft 515. A first connecting rod 514 and a second connecting rod 512 are fixed on the second sleeve 513. The first connecting rod 514 extends and is fixed to the first connecting plate 55, and the second connecting rod 512 extends and is fixed to the second connecting plate 510.

[0078] In this embodiment, the second sleeve 513 sleeved on the second transmission shaft 515 can rotate freely on the second transmission shaft 515. Through the connection of the first connecting rod 514 and the second connecting rod 512, the rotation of the second sleeve 513 and the rotation of the side rotating disc 521 can be effectively synchronized, thereby enhancing the integrity of the side rotating disc 521, the first planetary gear 54, and the second planetary gear 58 when rotating around the axis of the first sun gear 53, achieving the purpose of providing a support basis for the first planetary gear 54 and the second planetary gear 58.

[0079] The first connecting plate 55 and the second connecting plate 510 can effectively complete the carrying of the first planetary gear 54 and the second planetary gear 58.

[0080] Further, a first rotation alarm assembly 57 is provided on the first connecting plate 55, and the first planetary gear 54 is rotationally connected to the first rotation alarm assembly 57: when the first planetary gear 54 rotates, the first rotation alarm assembly 57 emits an alarm;

[0081] A second rotation alarm assembly 511 is provided on the second connecting plate 510, and the second planetary gear 58 is rotationally connected to the second rotation alarm assembly 511: when the second planetary gear 58 rotates, the second rotation alarm assembly 511 emits an alarm;

[0082] The first rotation alarm assembly 57 and the second rotation alarm assembly 511 have the same structure.

[0083] The first connecting plate 55 and the first planetary gear 54 are connected by a first intermediate bearing 56, so as to support the first planetary gear 54 to rotate on its own on the basis of being carried on the first connecting plate 55;

[0084] The second connecting plate 510 and the second planetary gear 58 are connected by a second intermediate bearing 59, so as to support the second planetary gear 58 to rotate on its own on the basis of being carried on the second connecting plate 510.

[0085] In this embodiment, the first rotation alarm assembly 57 is located on the first connecting plate 55, and the second rotation alarm assembly 511 is located on the second connecting plate 510, so that the first connecting plate 55 and the second connecting plate 510 can serve the purpose of carrying the first rotation alarm assembly and the second rotation alarm assembly 511.

[0086] Since the rotation of the first planetary gear 54 and the second planetary gear 58 can provide feedback on whether there is a speed difference problem, in this embodiment, the first rotation alarm component 57 monitors the rotation of the first planetary gear 54, and the second rotation alarm component 511 monitors the rotation of the second planetary gear 58. When the first planetary gear 54 rotates, the first rotation alarm component 57 issues an alarm, and when the second planetary gear 58 rotates, the second rotation alarm component 511 issues an alarm, so that the alarm processing of the slipping phenomenon can be achieved through the first rotation alarm component 57 and the second rotation alarm component 511.

[0087] Furthermore, the first rotation alarm component 57 includes a component housing 571, and a rotation rod 576 is fixed on the first planetary gear 54, and the rotation rod 576 passes through the first connecting plate 55 and extends into the component housing 571;

[0088] A plurality of sound chambers 574 are provided in the component housing 571, and the sound chambers 574 are distributed circumferentially around the rotating rod 576;

[0089] The sound chamber 574 includes a resonance cavity 575 , and a notch 573 is provided on one side of the resonance cavity 575 facing the rotating rod 576 , and a string body 572 is fixed to the notch 573 ;

[0090] A plectrum 577 is fixed on the rotating rod 576 , and the plectrum 577 is used to pluck the string body 572 .

[0091] In this embodiment, the first rotation alarm component 57 extends the rotation of the first planetary gear 54 to the component housing 571 through the rotating rod 576. When the first planetary gear 54 rotates, the rotating rod 576 rotates synchronously. The rotating rod 576 can carry the plectrum 577 to rotate circumferentially, and pluck the string body 572 during the rotation. The string body 572 can vibrate to achieve sound in the resonance chamber 575, and the sound in the resonance chamber 575 can continuously emit sound; if slippage occurs, the first planetary gear 54 rotates, and the plectrum 577 plucks the string body 572 at this time, and the sound begins to be emitted in the sound chamber 574. When the speed difference between the first transmission shaft 51 and the second transmission shaft 515 increases, the plectrum 577 can pluck the string body 572 at a higher frequency, thereby making the occurrence rhythm of the string body 572 faster. Therefore, this embodiment can effectively determine the risk of slippage by using the frequency of sound generation while feeding back the slippage phenomenon, so as to adopt corresponding countermeasures.

[0092] Further, the first transmission support assembly 4 includes a support housing 44, and an arc-shaped groove 42 is provided at the top of the support housing 44. The arc-shaped groove 42 can partially accommodate the collar gear 2;

[0093] A rotating gear 43 is provided inside the support housing 44. The top of the rotating gear 43 penetrates through the support housing 44 and meshes with the collar gear 2;

[0094] One end face of the rotating gear 43 facing away from the slip feedback assembly 5 is connected to an end bearing 45. A support column 48 is fixed to the bottom of the end bearing 45. The support column 48 extends and is fixed into the bearing base 6, and the other end face of the rotating gear 43 is connected to the slip feedback assembly 5.

[0095] In this embodiment, the support housing 44 is used to accommodate and protect the internal structure. The rotating gear 43 meshes with the collar gear 2, and by fixing the position on the first transmission shaft 51, the purpose of making full use of the first transmission shaft 51 can be achieved. The end bearing 45 can bear the rotation of the first rotating shaft or the second transmission shaft 515, and uses the support column 48 for bottom support, thereby ensuring its own structural stability.

[0096] Further, several inclined support rods 49 are provided on the side of the end bearing 45. One end of each inclined support rod 49 is fixed to the support housing 44, and a connection end 46 is fixed to the other end thereof. The connection end 46 is hinged to the end bearing 45;

[0097] An elastic support 47 is provided between the connection ends 46. The connection ends 46 are all fixed to the elastic support 47, and the elastic support 47 is in contact with the end bearing 45.

[0098] In this embodiment, since the connection end 46 is hinged to the end bearing 45, the inclined support rod 49 can effectively strengthen the stability of the position of the end bearing 45. The elastic support 47 does not function under normal circumstances, but when there is a problem with the support of the support column 48, it is easy to have a problem of the collapse of the position of the first transmission shaft 51. Therefore, an elastic support 47 is provided between the end bearings 45 in this embodiment. The elastic support 47 can protect the first transmission shaft 51 and the second transmission shaft 515 in extreme situations in this embodiment, and use the elastic support force for support.

[0099] Further, a rotation gap 41 is left between the arc-shaped groove 42 and the collar gear 2: The collar gear 2 can rotate freely. When the collar gear 2 rotates, it can drive the rotating gear 43 to rotate.

[0100] This embodiment utilizes the rotation gap 41 to avoid the wear on the surface of the rotating gear 43, thereby increasing the application time of this embodiment.

[0101] Furthermore, the bearing base 6 includes several layers of elastic filling layers 62, and the elastic filling layers 62 fill the bearing base 6;

[0102] The elastic filling layer 62 includes a first filling block 621 and a second filling block 622. The elastic expansion and contraction direction of the first filling block 621 is perpendicular to the elastic expansion and contraction direction of the second filling block 622, and the first filling block 621 and the second filling block 622 are staggered.

[0103] In this embodiment, due to the perpendicularity between the first filling block 621 and the second filling block 622 in the elastic filling layer 62 of the bearing base 6, the force on the elastic filling layer 62 is more uniform. When under heavy pressure, it can effectively prevent the pressed object from rolling over, thereby effectively enhancing the bearing capacity of the bearing base 6 in the present invention.

[0104] This embodiment forms the basic shape and accommodation space of the bearing base 6 by setting the base housing 61. The first filling block 621 and the second filling block 622 are staggered: the elastic filling adjacent to the first filling block 621 in all directions is preferably set as the second filling block 622, and the elastic filling adjacent to the second filling block 622 in all directions is preferably set as the first filling block 621, so that the elastic expansion and contraction directions of the first filling block 621 and the second filling block 622 can complement each other, achieving the purpose of enhancing the bearing capacity of the bearing base 6.

[0105] The above specific implementation manners further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only the specific implementation manners of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Wind turbine coupling slip fault detection device, wherein collar gears are sleeved and fixed on the shaft bodies on both sides of the coupling, and it is characterized in that It further includes a bearing base which is located below the coupling. A first transmission support assembly and a second transmission support assembly are fixed on the bearing base, and a slip feedback assembly is arranged between the first transmission support assembly and the second transmission support assembly; The structures of the first transmission support assembly and the second transmission support assembly are the same; The first transmission support assembly is located below one of the shaft bodies, and the second transmission support assembly is located below the other shaft body. The slip feedback assembly is respectively connected to the first transmission support assembly and the second transmission support assembly: when there is a differential speed between the rotation of the shaft body on the first transmission support assembly and the rotation of the shaft body on the second transmission support assembly, the slip feedback assembly gives an alarm; The slip feedback assembly includes a first transmission shaft and a second transmission shaft. The first transmission shaft is connected to the first transmission support assembly, and the second transmission shaft is connected to the second transmission support assembly: the rotation of the shaft body on the first transmission support assembly can drive the rotation of the first transmission shaft, and the rotation of the shaft body on the second transmission support assembly can drive the rotation of the second transmission shaft; A differential feedback assembly is arranged between the first transmission shaft and the second transmission shaft, and a differential alarm assembly is arranged on the differential feedback assembly. When there is a differential speed between the rotation of the first transmission shaft and the rotation of the second transmission shaft, the differential alarm assembly gives an alarm; The differential alarm assembly includes a first sun gear and a second sun gear. The first sun gear is fixed to the first transmission shaft, and the second sun gear is fixed to the second transmission shaft. The axes of the first sun gear and the second sun gear coincide; A first sleeve and a side rotating disc are sleeved on the first transmission shaft. The first sleeve is fixed to the side rotating disc. The side rotating disc is provided with a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are symmetric with respect to the axis of the first sun gear; A first planetary gear is rotatably connected to the first connecting plate, and a second planetary gear is rotatably connected to the second connecting plate. Both the first planetary gear and the second planetary gear are meshed with the first sun gear and the second sun gear; A first rotation alarm assembly is arranged on the first connecting plate, and the first planetary gear is rotatably connected to the first rotation alarm assembly: when the first planetary gear rotates, the first rotation alarm assembly gives an alarm; A second rotation alarm assembly is arranged on the second connecting plate, and the second planetary gear is rotatably connected to the second rotation alarm assembly: when the second planetary gear rotates, the second rotation alarm assembly gives an alarm; The structures of the first rotation alarm assembly and the second rotation alarm assembly are the same.

2. The wind turbine coupling slip fault detection device according to claim 1, characterized in that A second sleeve is sleeved on the second transmission shaft. The second sleeve is fixed with a first connecting rod and a second connecting rod. The first connecting rod extends and is fixed to the first connecting plate, and the second connecting rod extends and is fixed to the second connecting plate.

3. The wind turbine coupling slip fault detection device according to claim 1, characterized in that, The first rotating alarm component comprises a component housing, a rotating rod is fixed on the first planetary gear, and the rotating rod passes through the first connecting plate and extends into the component housing; A plurality of sound generating chambers are provided in the housing of the component, and the sound generating chambers are distributed circumferentially around the rotating rod; The sound-generating chamber comprises a resonance cavity, a notch is provided on a side of the resonance cavity facing the rotating rod, and a string body is fixed at the notch; A plectrum is fixed on the rotating rod, and the plectrum is used to pluck the string body.

4. The wind turbine coupling slip fault detection device according to any one of claims 1 to 3, characterized in that, The first transmission support assembly comprises a support shell, the top of the support shell is provided with an arc-shaped groove, and the arc-shaped groove can partially accommodate the collar gear; A rotating gear is provided in the supporting shell, and the top of the rotating gear passes through the supporting shell and meshes with the collar gear; The end face of the rotating gear facing away from the slip feedback assembly is connected with an end bearing, a support is fixed at the bottom of the end bearing, the support extends and is fixed into the bearing base, and the other end face of the rotating gear is connected with the slip feedback assembly.

5. The wind turbine coupling slip fault detection device according to claim 4, characterized in that, A plurality of oblique support rods are provided on the side of the end bearing, one end of the oblique support rod is fixed to the supporting shell, and the other end thereof is fixed with a connecting end, and the connecting end is hinged to the end bearing; An elastic support is arranged between the connecting ends, the connecting ends are fixed to the elastic support, and the elastic support is fitted to the end bearing.

6. The wind turbine coupling slip fault detection device according to claim 5, characterized in that, A rotation gap is left between the arc-shaped groove and the collar gear: the collar gear can rotate freely, and when the collar gear rotates, it can drive the rotating gear to rotate.

7. The wind turbine coupling slip fault detection device according to claim 1, characterized in that, The bearing base includes a plurality of elastic filling layers, and the elastic filling layers fill the bearing base; The elastic filling layer includes a first filling block and a second filling block. The elastic expansion and contraction direction of the first filling block is perpendicular to the elastic expansion and contraction direction of the second filling block. The first filling block and the second filling block are staggered.

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