Variable-pitch slip ring

Abstract

The utility model discloses a variable-pitch slip ring, which belongs to the technical field of variable-pitch slip rings and comprises a stator part, the stator part comprises a shell, a first mounting flange and a second mounting flange, and the first mounting flange and the second mounting flange are respectively positioned at two ends of the shell; the rotor part comprises a driver, a transmission shaft and a power main shaft, the driver drives the power main shaft to rotate through the transmission shaft, an encoder is arranged on the driver to monitor the rotation angle of the power main shaft, and an insulating lantern ring is arranged on the surface of the power main shaft. The variable-pitch slip ring is good in insulation performance, the service life of the variable-pitch slip ring can be effectively prolonged in actual use, and the variable-pitch slip ring has a certain monitoring function and can monitor the rotation angle of the blade in real time, so that the blade is kept at the optimal windward position, and the power generation efficiency of a wind driven generator is improved.

Description

Technical Field

[0001] This utility model belongs to the field of pitch slip ring technology, and particularly relates to a pitch slip ring. Background Technology

[0002] Pitch slip rings, also known as wind turbine slip rings, are a crucial component in wind turbine systems. A pitch slip ring is a rotating contact that connects the rotor of a rotating electric motor to the stator, and is commonly used in wind turbine systems. By connecting the wind turbine rotor to the stationary components via electrical wires, it allows the rotor to rotate freely without being restricted by the wires. By adjusting the blade angle, it keeps the rotor in the optimal windward position, thereby improving the power generation efficiency and operational stability of the wind turbine.

[0003] In practical use, existing pitch slip rings have poor insulation performance, which will affect their service life in the long run. Furthermore, when adjusting the blade angle, the pitch slip ring does not have a monitoring function, meaning it cannot know the rotation angle of the blade, which will affect the power generation performance of the wind turbine. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art by providing a pitch slip ring to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a pitch slip ring, comprising...

[0006] The stator section includes a housing, a first mounting flange, and a second mounting flange, wherein the first mounting flange and the second mounting flange are respectively located at both ends of the housing;

[0007] The moving part includes a driver, a transmission shaft, and a power spindle. The driver drives the power spindle to rotate via the transmission shaft. An encoder is provided on the driver to monitor the rotation angle of the power spindle. An insulating collar is provided on the surface of the power spindle.

[0008] In a preferred embodiment of the present invention, the drive shaft and the power spindle are both located inside the housing, and the housing, drive shaft and power spindle are coaxially arranged.

[0009] In a preferred embodiment of this utility model, the power spindle is connected to the transmission shaft via several connecting members to rotate with the transmission shaft.

[0010] In a preferred embodiment of this utility model, a limiting ring is provided on the outer ring of the insulating collar to limit the insulating collar.

[0011] A preferable embodiment of the utility model discloses a plurality of wire holes are equipped on the power spindle, to lead out the wiring harness.

[0012] A preferable embodiment of the utility model discloses that the power spindle outer ring is provided with a protective shell, and the protective shell corresponds with the wire hole position to carry out protection.

[0013] A preferable embodiment of the utility model discloses that the driver is installed on the first mounting flange to drive the transmission shaft to rotate.

[0014] A preferable embodiment of the utility model discloses that the driver is a servo motor.

[0015] The utility model solves the defects in the background art, and has the following beneficial effects:

[0016] The variable pitch slip ring has good insulation performance, can effectively prolong the service life in actual use, has certain monitoring function, can monitor the rotation angle of the blade in real time, makes the blade keep in the best windward position, and improves the power generation efficiency of the wind driven generator. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further described below in combination with the drawings and embodiments;

[0018] Fig. 1 It is the whole structure schematic diagram of preferred embodiment of the utility model;

[0019] Fig. 2 It is the sectional view of preferred embodiment of the utility model;

[0020] Fig. 3 It is the local structure schematic diagram of preferred embodiment of the utility model;

[0021] In the drawing: 10, stator part;11, shell;12, first mounting flange;13, second mounting flange;20, rotor part;21, driver;22, transmission shaft;23, power spindle;30, encoder;40, insulating sleeve ring;50, connecting piece;60, limit sleeve ring;70, protective shell. DETAILED DESCRIPTION

[0022] The utility model will be further described below in combination with the drawings and embodiments;

[0023] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the present application, which is only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0024] The present embodiment provides a variable pitch slip ring, which has good insulation performance, can effectively improve the service life in actual use, and has certain monitoring function, can real-time monitor the rotation angle of the blade, so that the blade can be kept in the best windward position, and the power generation efficiency of the wind driven generator is improved.

[0025] In combination Figs. 1-3 As shown in the figure, the variable pitch slip ring of the present embodiment includes a stator part 10 and a rotor part 20, the slip ring is installed through the stator part 10, and the rotor part 20 can realize the transmission of the slip ring.

[0026] In the present embodiment, the stator part 10 includes a shell 11, a first mounting flange 12 and a second mounting flange 13, the first mounting flange 12 and the second mounting flange 13 are respectively located at both ends of the shell 11, the rotor part 20 includes a driver 21, a transmission shaft 22 and a power main shaft 23, the driver 21 drives the power main shaft 23 to rotate through the transmission shaft 22, an encoder 30 is arranged on the driver 21 to monitor the rotation angle of the power main shaft 23, an insulating sleeve ring 40 is arranged on the surface of the power main shaft 23, the driver 21 is installed on the first mounting flange 12 to drive the transmission shaft 22 to rotate, the driver 21 of the present embodiment is a servo motor, the driver 21 drives the power main shaft 23 through the transmission shaft 22, so that the blade of the wind driven generator rotates, the insulating sleeve ring 40 on the surface of the power main shaft 23 can effectively improve the insulation performance of the variable pitch slip ring, the existence of the encoder 30 can real-time monitor the driving angle of the driver 21 to determine the position of the blade, and further more effectively improve the power generation efficiency of the wind driven generator.

[0027] In combination Fig. 1 With Fig. 2As shown, the transmission shaft 22 and the power main shaft 23 of the embodiment are located in the shell 11, the shell 11, the transmission shaft 22 and the power main shaft 23 are coaxially arranged, the power main shaft 23 is connected with the transmission shaft 22 through a plurality of connecting pieces 50 to rotate with the transmission shaft 22, the connecting piece 50 of the embodiment is a connecting rod, the connecting piece 50 is fixedly connected with the transmission shaft 22 and the power main shaft 23, so that when the driver 21 drives the transmission shaft 22 to rotate, the power main shaft 23 will rotate synchronously under the action of the connecting piece 50.

[0028] In the embodiment, the limiting sleeve 60 is arranged at the outer circle of the insulating sleeve ring 40 to limit the insulating sleeve ring 40, the power main shaft 23 is provided with a plurality of wire outlet holes to guide the wire harness out, the limiting sleeve 60 can effectively limit and install the insulating sleeve ring 40 to ensure the stability of the insulating sleeve ring 40 on the power main shaft 23, and the wire outlet hole can stably guide the wire harness out to avoid disorderly installation of the wire harness.

[0029] Further, the power main shaft 23 is provided with a protective shell 70 at the outer circle in the embodiment, the protective shell 70 corresponds to the position of the wire outlet hole to protect, and the wire harness can be better installed and handled under the action of the protective shell 70.

[0030] In actual use, the driver 21 drives the power main shaft 23 through the transmission shaft 22 to rotate the blade of the wind driven generator, the insulating sleeve ring 40 on the surface of the power main shaft 23 can effectively improve the insulation performance of the variable pitch slip ring, and the encoder 30 arranged on the driver 21 can monitor the driving angle of the driver 21 in real time to determine the position of the blade, thereby more effectively improving the power generation efficiency of the wind driven generator.

[0031] In summary, the variable pitch slip ring of the embodiment has good insulation performance, which can effectively prolong the service life in actual use, and has a certain monitoring function, which can monitor the rotation angle of the blade in real time to keep the blade in the best wind-approaching position and improve the power generation efficiency of the wind driven generator.

[0032] While the present application has been described with reference to various embodiments, it will be understood that many modifications and variations of the present application are possible, as they will occur to those skilled in the art in the scope of the application. That is, the methods, systems, or devices discussed above are examples. It is contemplated that various processes or components can be added, omitted or combined. For example, in alternative configurations, the methods can be performed in a different order than described, and / or various stages can be added, omitted or combined. Also, features described with respect to certain configurations can be combined in a variety of other configurations. Different aspects and elements of configurations can be combined in similar fashion. Also, a person of ordinary skill in the art will appreciate that many of the elements described above are suitable for use with other configurations. Furthermore, to the extent that various configurations have been described with the reference to particular features, alternative configurations can employ any single feature or a combination of features described with reference to the various configurations. Also, as will be apparent to the skilled person, certain features of the configurations according to the present application can be provided in portions (for example, hardware and software) distributed across a plurality of devices and / or locations. Moreover, many of the elements described above are suitable for use with other configurations. Furthermore, to the extent that various configurations have been described with the reference to particular features, alternative configurations can employ any single feature or a combination of features described with reference to the various configurations. Also, as will be apparent to the skilled person, certain features of the configurations according to the present application can be provided in portions (for example, hardware and software) distributed across a plurality of devices and / or locations. Moreover, many of the elements described above are suitable for use with other configurations. Furthermore, to the extent that various configurations have been described with the reference to particular features, alternative configurations can employ any single feature or a combination of features described with reference to the various configurations. Also, as will be apparent to the skilled person, certain features of the configurations according to the present application can be provided in portions (for example, hardware and software) distributed across a plurality of devices and / or locations. Moreover, many of the elements described above are suitable for use with other configurations. Furthermore, to the extent that various configurations have been described with the reference to particular features, alternative configurations can employ any single feature or a combination of features described with reference to the various configurations. Also, as will be apparent to the skilled person, certain features of the configurations according to the present application can be provided in portions (for example, hardware and software) distributed across a plurality of devices and / or locations.

[0033] In the description specific details have been set forth in order to provide a thorough understanding of the exemplary configurations implementations. However, configurations can be practiced without these specific details, for example, well known circuits, processes, algorithms, structures, and techniques have not been described in detail because such details are readily available to persons having ordinary skill in the art without necessity for undue experimentation. The description only provides example configurations, and is not intended to limit or restrict the scope, applicability or configurations of claims. Rather, the preceding description of the configurations will provide enabling descriptions for a skilled artisan to implement the described technology. Various changes can be made to the function and arrangement of elements without departing from the spirit or scope of the disclosure.

[0034] Also, although each of the operations can be described as a sequential process, many of the operations can occur in parallel, or concurrently. In addition, the order of the operations can be re-arranged. A process can have additional steps not not shown. Further, many of the elements described above are suitable for use with other configurations. Furthermore, to the extent that various configurations have been described with the reference to particular features, alternative configurations can employ any single feature or a combination of features described with reference to the various configurations. Also, as will be apparent to the skilled person, certain features of the configurations according to the present application can be provided in portions (for example, hardware and software) distributed across a plurality of devices and / or locations. Moreover, many of the elements described above are suitable for use with other configurations. Furthermore, to the extent that various configurations have been described with the reference to particular features, alternative configurations can employ any single feature or a combination of features described with reference to the various configurations. Also, as will be apparent to the skilled person, certain features of the configurations according to the present application can be provided in portions (for example, hardware and software) distributed across a plurality of devices and / or locations.

[0035] In view of the above detailed description of embodiments of the present application, it is expected that those of ordinary skill in the art will make modifications to the application without departing from the spirit and scope of the application. Such modifications are intended to be within the scope of the claims.

Claims

1. A variable pitch slip ring, characterized by, Comprising A stator part (10) comprising a housing (11), a first mounting flange (12) and a second mounting flange (13), the first mounting flange (12) and the second mounting flange (13) are respectively located at both ends of the housing (11); A rotor part (20) comprising a driver (21), a transmission shaft (22) and a power main shaft (23), the driver (21) drives the power main shaft (23) to rotate through the transmission shaft (22), an encoder (30) is arranged on the driver (21) to monitor the rotation angle of the power main shaft (23), and an insulating collar (40) is arranged on the surface of the power main shaft (23); A limiting collar (60) is arranged outside the insulating collar (40) to limit the insulating collar (40); A plurality of wire outlet holes are arranged on the power main shaft (23) to guide the wire harness out; A protective shell (70) is arranged outside the power main shaft (23), and the protective shell (70) corresponds to the position of the wire outlet hole to protect.

2. A variable pitch slip ring according to claim 1, characterized in that The transmission shaft (22) and the power main shaft (23) are located in the housing (11), and the housing (11), the transmission shaft (22) and the power main shaft (23) are coaxially arranged.

3. A variable pitch slip ring according to claim 1 or 2, characterised in that, The power main shaft (23) is connected with the transmission shaft (22) through a plurality of connecting pieces (50) to rotate with the transmission shaft (22).

4. A variable pitch slip ring according to claim 1, wherein, The driver (21) is mounted on the first mounting flange (12) to drive the transmission shaft (22) to rotate.

5. A variable pitch slip ring according to claim 1 or 4, characterized in that The driver (21) is a servo motor.

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