Novel fan variable-pitch slip ring

Abstract

The utility model relates to the technical field of fan variable-pitch slip rings, and discloses a novel fan variable-pitch slip ring which comprises a shell and a cooling bin, the shell comprises air outlets and air inlets, a plurality of sets of air outlets are formed in one end of the shell, a plurality of sets of air inlets are formed in the other end of the shell, and the cooling bin is arranged in the shell. And the cooling bin comprises a semiconductor refrigerator, multiple sets of temperature guide plates and an air blower, the semiconductor refrigerator is arranged at the top of the cooling bin, and the multiple sets of temperature guide plates are arranged at the refrigerating end of the semiconductor refrigerator and penetrate into the cooling bin. Cooling is generated through the semiconductor cooler, the temperature guide plate and the air blower, air enters the shell through the air inlet, the sliding ring rotating roller can be rapidly cooled, damage to the fan variable-pitch sliding ring caused by high temperature is avoided, the cleaning roller and the bristles can be driven to rotate through the servo motor and the rotating shaft, dust on a sliding way can be cleaned, and the service life of the sliding way is prolonged. And dust is prevented from influencing the use of the fan variable-pitch slip ring, so that the use stability of the fan variable-pitch slip ring is higher.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine pitch slip ring technology, specifically a novel wind turbine pitch slip ring. Background Technology

[0002] The pitch slip ring of a wind turbine generator set is responsible for communicating with the rotating body and transmitting electrical control signals. The pitch slip ring is usually installed at the low-speed shaft end of the gearbox and mainly consists of two parts: a rotating part and a stationary part. It transmits power, control signals and communication signals to the pitch control system. The wind turbine pitch slip ring plays a crucial role in the safety and stability of the pitch control system.

[0003] Application number CN202020765983.9 discloses a novel wind turbine pitch slip ring, including a housing. A rotating shaft is connected to the inner wall of the housing, and a cleaning brush is installed at the bottom of the inner wall of the housing, while an electric brush is installed at the top of the inner wall of the housing. A handle is pushed to move a locking block to one side, causing the locking block to disengage from the inner wall of the locking slot. At this point, the dustproof plate can be removed. The cleaning brush installed on the inner wall of the housing cleans the dust adhering to the inner wall of the rotating slide. However, this type of wind turbine pitch slip ring uses a fixed cleaning brush to clean the dust on the slide, resulting in poor cleaning effectiveness and inconvenience for the slip ring's use. Furthermore, the internal heat dissipation of the slip ring is poor, and prolonged high temperatures can easily damage the slip ring. Utility Model Content

[0004] The purpose of this invention is to provide a novel wind turbine pitch slip ring to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel wind turbine pitch slip ring, comprising a housing and a cooling chamber. The housing includes an air outlet and an air inlet. Multiple sets of the air outlets are located at one end of the housing, and multiple sets of the air inlets are located at the other end of the housing. The cooling chamber includes a semiconductor cooler, a temperature-conducting plate, and a blower. The semiconductor cooler is located at the top of the cooling chamber, and multiple sets of the temperature-conducting plate are located at the cooling end of the semiconductor cooler and extend into the interior of the cooling chamber. Two sets of the blower are symmetrically located at one end of the cooling chamber.

[0006] Preferably, the housing has a cleaning roller inside, multiple sets of bristles on the outside of the cleaning roller, a servo motor installed at the bottom of one end of the housing, and the output end of the servo motor is connected to a rotating shaft that extends through the cleaning roller.

[0007] Preferably, the housing has a slip ring rotating roller inside, and multiple sets of slide tracks are provided on the outer side of the slip ring rotating roller. A rotating rod that penetrates into the slip ring rotating roller is provided at the middle position inside the housing. The inner wall of the housing has a mounting block, and multiple sets of brushes are provided at the bottom of the mounting block.

[0008] Preferably, the housing is connected to the cooling chamber via an air outlet, and the cooling chamber is welded to one end of the housing.

[0009] Preferably, the top of the cooling chamber is provided with a mounting groove, the semiconductor cooler is detachably connected to the cooling chamber by fixing bolts, and an air guide block is provided at one end of the cooling chamber near the air outlet.

[0010] Preferably, the cooling chamber is provided with multiple sets of mounting pipes at the end away from the shell, and the blower is detachably connected to the cooling chamber through the mounting pipes.

[0011] Preferably, the servo motor is detachably connected to the housing via fixing bolts, and the cleaning roller has mounting holes inside, through which it is detachably connected to the rotating shaft.

[0012] Preferably, a bearing is provided at one end of the housing, and one end of the rotating shaft extends through the bearing. The cleaning roller is connected to the servo motor via the rotating shaft.

[0013] Preferably, the brush is detachably connected to the mounting block by fixing bolts, and a fixing hole is provided at the middle position inside the slip ring rotating roller, with the rotating rod passing through the fixing hole.

[0014] Preferably, bearings are provided at the middle positions of both ends inside the housing, and the rotating rod is rotatably connected to the housing through the bearings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a semiconductor cooler, a temperature-conducting plate, and a blower to generate cooling, which enters the housing through the air inlet. This rapidly cools the rotating roller of the slip ring, preventing high temperatures from damaging the wind turbine pitch slip ring. A servo motor and a rotating shaft drive the cleaning roller and brush to rotate, cleaning dust from the slide rail and preventing dust from affecting the use of the wind turbine pitch slip ring, thus improving the stability of the wind turbine pitch slip ring. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0021] In the diagram: 1. Housing; 101. Air outlet; 102. Air inlet; 2. Cooling chamber; 201. Semiconductor cooler; 202. Temperature guide plate; 203. Blower; 204. Cleaning roller; 205. Brush bristles; 206. Servo motor; 207. Rotating shaft; 3. Slip ring rotating roller; 301. Slide rail; 302. Rotating rod; 303. Mounting block; 304. Brush. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 This utility model provides a novel embodiment of a wind turbine pitch slip ring: A novel wind turbine pitch slip ring includes a housing 1 and a cooling chamber 2. The housing 1 includes an air outlet 101 and an air inlet 102. Multiple sets of air outlets 101 are opened at one end of the housing 1 to facilitate the flow of air inside the housing 1 with outside air. Multiple sets of air inlets 102 are opened at the other end of the housing 1 to deliver cool air into the housing 1. The cooling chamber 2 includes a semiconductor cooler 201, a temperature guide plate 202, and a blower 203. The semiconductor cooler 201 is located at the top of the cooling chamber 2, and multiple sets of temperature guide plates 202 are located at the cooling end of the semiconductor cooler 201, and the temperature guide plates 202 penetrate through the cooling chamber. Inside the cooling chamber 2, two sets of blowers 203 are symmetrically arranged at one end of the cooling chamber 2. They can generate cold air and deliver it to the inside of the housing 1 for cooling, preventing the operating temperature of the blower pitch slip ring from getting too high. Inside the housing 1, there is a cleaning roller 204. The outer side of the cleaning roller 204 is equipped with multiple sets of bristles 205 to facilitate cleaning the dust in the slide rail 301. A servo motor 206 is installed at the bottom of one end of the housing 1. The output end of the servo motor 206 is connected to a rotating shaft 207 that passes through the inside of the cleaning roller 204. The servo motor 206 and the rotating shaft 207 can drive the cleaning roller 204 to rotate. The rotating bristles 205 have a better cleaning effect on the inside of the slide rail 301.

[0027] Please refer to this carefully. Figure 1 and Figure 3The housing 1 has a slip ring rotating roller 3 inside, and multiple sets of slide rails 301 are opened on the outer side of the slip ring rotating roller 3. A rotating rod 302 is provided in the middle of the housing 1, which penetrates into the slip ring rotating roller 3. The rotating rod 302 makes the rotation of the slip ring rotating roller 3 more stable. The inner wall of the housing 1 has a mounting block 303. Multiple sets of brushes 304 are provided at the bottom of the mounting block 303, so that the brushes 304 contact the slide rails 301, making the use of the wind turbine pitch slip ring more stable.

[0028] Please refer to this carefully. Figure 2 and Figure 3 The housing 1 is connected to the cooling chamber 2 via the air outlet 101, allowing cold air to enter the interior of the housing 1. The cooling chamber 2 is welded to one end of the housing 1. The top of the cooling chamber 2 is provided with a mounting groove, through which the temperature guide plate 202 can be extended into the interior of the cooling chamber 2. The semiconductor cooler 201 is detachably connected to the cooling chamber 2 via fixing bolts, allowing the semiconductor cooler 201 to be installed on the top of the cooling chamber 2. An air guide block is provided at the end of the cooling chamber 2 near the air outlet 101, facilitating the guidance of cold air to the air outlet 101 and its delivery into the interior of the housing 1. The end of the cooling chamber 2 away from the housing 1 is provided with multiple sets of mounting pipes. The blower 203 is detachably connected to the cooling chamber 2 via the mounting pipes. The blower 203 is fixedly installed by detaching the connection, which facilitates the generation of airflow to the interior of the cooling chamber 2. The servo motor 206 is detachably connected to the housing 1 by fixing bolts. The cleaning roller 204 has mounting holes inside, and the cleaning roller 204 is detachably connected to the rotating shaft 207 through the mounting holes, so that the cleaning roller 204 can be installed on the outside of the rotating shaft 207. One end of the housing 1 is equipped with a bearing, and one end of the rotating shaft 207 passes through the bearing. The cleaning roller 204 is connected to the servo motor 206 through the rotating shaft 207. The servo motor 206 can drive the cleaning roller 204 to rotate, which facilitates the cleaning of dust in the slide 301 and makes the slip ring more stable.

[0029] Please refer to this carefully. Figure 1 and Figure 3 The brush 304 is detachably connected to the mounting block 303 by fixing bolts, so as to fix the brush 304. The middle position inside the slip ring rotating roller 3 is provided with a fixing hole, and the rotating rod 302 passes through the fixing hole, so that the slip ring rotating roller 3 and the rotating rod 302 can be installed together. Bearings are provided at the middle positions of both ends inside the housing 1. The rotating rod 302 is rotatably connected to the housing 1 through the bearings, so that the rotation of the slip ring rotating roller 3 is more stable.

[0030] Working principle: When the power is turned on, the brush 304 contacts the slide rail 301 on the outside of the rotating roller 3 of the slip ring, and the bristles 205 on the outside of the cleaning roller 204 contact the slide rail 301. The servo motor 206 drives the rotating shaft 207 to rotate in both directions, thereby driving the bristles 205 to rotate in both directions to clean the dust in the slide rail 301. The cleaning effect of the dust in the slide rail 301 makes the performance of the fan pitch slip ring better. The low temperature end of the semiconductor cooler 201 is transmitted to the temperature guide plate 202, and the blower 203 generates airflow to the interior of the cooling chamber 2. The low temperature temperature guide plate 202 cools the interior of the cooling chamber 2. The cold air generated by the blower 203 enters the interior of the housing 1 through the air inlet 102 to cool the interior of the housing 1. It is best to exhaust the air from the air outlet 101 for better cooling effect on the fan pitch slip ring and avoid damage to the fan pitch slip ring caused by high temperature.

[0031] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel wind turbine pitch slip ring, characterized in that: include The housing (1) includes an air outlet (101) and an air inlet (102), with multiple sets of the air outlets (101) located at one end of the housing (1) and multiple sets of the air inlets (102) located at the other end of the housing (1). The cooling chamber (2) includes a semiconductor cooler (201), a temperature guide plate (202), and a blower (203). The semiconductor cooler (201) is located at the top of the cooling chamber (2). Multiple sets of temperature guide plates (202) are located at the cooling end of the semiconductor cooler (201) and extend into the interior of the cooling chamber (2). Two sets of blowers (203) are symmetrically located at one end of the cooling chamber (2).

2. The novel wind turbine pitch slip ring according to claim 1, characterized in that: The housing (1) is equipped with a cleaning roller (204) inside, and multiple sets of bristles (205) are provided on the outside of the cleaning roller (204). A servo motor (206) is installed at the bottom of one end of the housing (1), and the output end of the servo motor (206) is connected to a rotating shaft (207) that penetrates into the cleaning roller (204).

3. The novel wind turbine pitch slip ring according to claim 1, characterized in that: The housing (1) is provided with a slip ring rotating roller (3) inside. Multiple sets of slide rails (301) are provided on the outer side of the slip ring rotating roller (3). A rotating rod (302) is provided in the middle position inside the housing (1) and extends into the slip ring rotating roller (3). A mounting block (303) is provided on the inner wall of the housing (1). Multiple sets of brushes (304) are provided at the bottom of the mounting block (303).

4. The novel wind turbine pitch slip ring according to claim 1, characterized in that: The housing (1) is connected to the cooling chamber (2) through the air outlet (101), and the cooling chamber (2) is welded to one end of the housing (1).

5. A novel wind turbine pitch slip ring according to claim 1, characterized in that: The top of the cooling chamber (2) is provided with an installation groove. The semiconductor cooler (201) is detachably connected to the cooling chamber (2) by fixing bolts. An air guide block is provided inside the cooling chamber (2) at one end near the air outlet (101).

6. A novel wind turbine pitch slip ring according to claim 1, characterized in that: The cooling chamber (2) is provided with multiple sets of mounting pipes at one end away from the shell (1), and the blower (203) is detachably connected to the cooling chamber (2) through the mounting pipes.

7. A novel wind turbine pitch slip ring according to claim 2, characterized in that: The servo motor (206) is detachably connected to the housing (1) by fixing bolts. The cleaning roller (204) has an internal mounting hole and is detachably connected to the rotating shaft (207) through the mounting hole.

8. A novel wind turbine pitch slip ring according to claim 2, characterized in that: The housing (1) has a bearing at one end, and one end of the rotating shaft (207) extends into the bearing. The cleaning roller (204) is connected to the servo motor (206) via the rotating shaft (207).

9. A novel wind turbine pitch slip ring according to claim 3, characterized in that: The brush (304) is detachably connected to the mounting block (303) by fixing bolts. The slip ring rotating roller (3) has a fixing hole at the middle position inside, and the rotating rod (302) passes through the fixing hole.

10. A novel wind turbine pitch slip ring according to claim 3, characterized in that: Bearings are provided at the middle positions of both ends inside the housing (1), and the rotating rod (302) is rotatably connected to the housing (1) through the bearings.

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