Special yaw motor

Abstract

The utility model discloses a special yaw motor, and belongs to the technical field of yaw motor protection, the special yaw motor comprises a fixed seat and a yaw motor mounted on the fixed seat, and a cold-proof mechanism is arranged outside the yaw motor. The cold-proof mechanism comprises movable rail frames symmetrically installed on the fixing base and a cold-resisting cover shell arranged on the fixing base, a temperature sensor is installed on the cold-resisting cover shell, and an installation groove is formed in the upper end of the cold-resisting cover shell. The yaw motor is preheated through the cold resisting cover shell, so that the yaw motor can operate more stably, the heat preservation cotton in the cold resisting cover shell can effectively store generated heat energy and effectively isolate external low temperature, the yaw motor operates in a more suitable temperature environment, the service life is prolonged, the reliability is improved, and meanwhile the yaw motor can operate more stably. And by utilizing the protection of the shade of the cold resisting housing, the yaw motor can be effectively protected in severe weather, and the service life of the yaw motor is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the yaw motor protection technical field, in particular to a yaw special motor. BACKGROUND

[0002] In a wind turbine, a yaw motor is used to adjust the direction of the wind turbine, so that the wind turbine always faces the direction of the wind, thereby ensuring the power generation efficiency of the wind turbine.

[0003] However, the wind turbine is generally located in an open area, and the wind speed in the area is large and the weather is complex. Severe weather such as strong wind, rain and snow can greatly affect the safety and efficiency of high-altitude operation. In particular, the wind turbine in a cold region may face icing problems, which can cause the temperature of the yaw motor to be insufficient to start, thereby causing abnormal work.

[0004] Therefore, the application provides a yaw special motor to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The application provides a yaw special motor, which aims to solve the problem that the wind turbine in a cold region may face icing problems, which can cause the temperature of the yaw motor to be insufficient to start, thereby causing abnormal work.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a yaw special motor, comprising a fixed seat and a yaw motor mounted on the fixed seat, and a cold-proof mechanism arranged outside the yaw motor;

[0007] The cold-proof mechanism comprises a movable rail frame symmetrically mounted on the fixed seat and a cold-proof cover shell arranged on the fixed seat, a temperature sensor is mounted on the cold-proof cover shell, an installation groove is formed in the upper end of the cold-proof cover shell, a sealing frame adapted to the installation groove is mounted on the upper end of the cold-proof cover shell, a fixed frame is inserted into the inner side of the sealing frame, a hot air blower assembly is detachably mounted in the inner part of the fixed frame, and a ring plate is mounted on the fixed frame and overlapped on the sealing frame. When preheating is needed, the heating element and the fan are powered on to discharge hot air in the cold-proof cover shell and provide preheating operation for the yaw motor.

[0008] Preferably, the upper and lower ends of the fixed frame are fixedly installed with air deflectors, a positioning frame is installed at the air deflector close to the yaw motor, a dust filter screen is fixedly installed on the positioning frame, and when the dust filter screen is used for a long time and dust accumulates, the dust filter screen can be taken off from the positioning frame and the dust on the dust filter screen can be cleaned.

[0009] Preferably, the positioning frame and the air deflector close to the yaw motor are fixedly connected through screws.

[0010] Preferably, the movable rail frame is provided with a sliding groove, and the cold-proof cover is provided with a limiting sliding block connected with the sliding groove, so that the cold-proof cover can be pushed upward to expose the yaw motor for maintenance when the yaw motor is damaged.

[0011] Preferably, the cold-proof cover is provided with air guide grating symmetrically, and the inner wall of the cold-proof cover is attached with thermal insulation cotton.

[0012] Preferably, the cold-proof cover is fixedly provided with a signal converter connected with the temperature sensor.

[0013] The yaw motor is provided with a cold-proof cover covering the yaw motor, which can effectively provide temperature insulation. When the device is used in cold regions or in extremely cold weather, the heater assembly on the fixed frame can be started in advance, and the heating elements in the heater assembly are powered to heat and blow hot air into the cold-proof cover through the fan, thereby preheating the yaw motor and making the yaw motor run more stably. The thermal insulation cotton in the cold-proof cover can effectively store the generated heat energy and effectively isolate the low temperature outside, so that the yaw motor runs in a more suitable temperature environment, prolongs the service life and improves the reliability. At the same time, the cold-proof cover can effectively protect the yaw motor in harsh weather and prolong the service life of the yaw motor. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structure schematic view of a yaw motor;

[0015] Figure 2 It is a structure schematic view of a cold-proof cover cross section;

[0016] Figure 3 It is a structure schematic view of a movable rail frame;

[0017] Figure 4 It is a structure schematic view of a cold-proof cover;

[0018] Figure 5 It is a structure schematic view of a positioning frame.

[0019] In the drawings:

[0020] 1, fixed seat; 2, yaw motor; 3, cold-proof mechanism; 31, movable rail frame; 32, cold-proof cover; 321, air guide grating; 322, limiting sliding block; 33, sealing frame; 34, fixed frame; 341, air deflector; 342, heater assembly; 343, positioning frame; 344, dust filter net; 345, ring plate; 35, sliding groove; 36, mounting groove; 4, temperature sensor; 41, signal converter. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] This embodiment provides a dedicated yaw motor, such as... Figures 1-5 As shown, the yaw motor includes a mounting base 1 and a yaw motor 2 mounted on the mounting base 1. The yaw motor 2 is provided with a cold-proof mechanism 3 on its exterior.

[0023] The cold protection mechanism 3 includes a movable rail frame 31 symmetrically mounted on the fixed base 1 and a cold protection cover 32 set on the fixed base 1. A temperature sensor 4 is installed on the cold protection cover 32. An installation groove 36 is opened at the upper end of the cold protection cover 32. A sealing frame 33 for matching the installation groove 36 is installed at the upper end of the cold protection cover 32. A fixed frame 34 is inserted into the inner side of the sealing frame 33. A hot air blower assembly 342 is detachably installed inside the fixed frame 34. A ring plate 345 for overlapping the sealing frame 33 is installed on the fixed frame 34.

[0024] Specifically, the cooling cover 32 is an arched shell. The temperature sensor 4 installed on the cooling cover 32 can monitor the internal temperature of the cooling cover 32. The hot air blower assembly 342 is installed inside the fixed frame 34 and stands directly above the yaw motor 2. The hot air blower assembly 342 mainly consists of a fan, a heating element and a temperature control switch. When preheating is required, the heating element and the fan are energized to discharge hot air into the cooling cover 32 to provide preheating operation for the yaw motor 2.

[0025] Both the upper and lower ends of the fixed frame 34 are fixedly installed with air guide plates 341. A positioning frame 343 is installed at the air guide plate 341 near the yaw motor 2. A dust filter 344 is fixedly installed on the positioning frame 343. The positioning frame 343 and the air guide plate 341 near the yaw motor 2 are fixedly connected by screws.

[0026] More specifically, the air guide plate 341 serves to introduce air into the fan, and the positioning frame 343 serves to fix the dust filter 344. At the same time, the positioning frame 343 and the air guide plate 341 are fixed with screws. When the dust filter 344 accumulates dust after prolonged use, the dust filter 344 can be removed from the positioning frame 343 and the dust on the dust filter 344 can be cleaned to prevent the filter holes from being blocked by too much dust.

[0027] The movable rail frame 31 is provided with a sliding groove 35, and the cold-proof cover 32 is provided with a limiting sliding block 322 connected with the sliding groove 35. The cold-proof cover 32 is provided with symmetrical air guide grids 321, and the inner wall of the cold-proof cover 32 is attached with thermal insulation cotton.

[0028] It should be noted that the air guide grids 321 on the cold-proof cover 32 are slidably installed through the sliding groove 35 on the movable rail frame 31, so that when the yaw motor 2 is damaged, the cold-proof cover 32 can be pushed upward to expose the yaw motor 2, facilitating the maintenance of the yaw motor 2. The movable rail frame 31 can be fixed with the cold-proof cover 32 through threaded holes and screws, thereby improving the stability of the cold-proof cover 32 when covering the yaw motor 2.

[0029] The cold-proof cover 32 is fixedly provided with a signal converter 41 connected with the temperature sensor 4.

[0030] It is worth mentioning that the signal converter 41 converts electrical signals into optical signals and transmits them through optical fibers. The optical fibers are laid on the bottom surface of the wind turbine generator to avoid the rotation of the wind turbine generator affecting the transmission of signals. People on the ground can connect to network equipment through optical fibers to monitor the temperature of the yaw motor 2 in real time.

[0031] In use, the cold-proof cover 32 is arranged on the fixed seat 1 to cover the yaw motor 2. The cold-proof cover 32 can effectively provide temperature insulation protection. When the device is in a cold region or in extremely cold weather, the hot air assembly 342 on the fixed frame 34 can be started in advance. The heating element in the hot air assembly 342 is powered to heat and then blows hot air into the cold-proof cover 32 through the fan to preheat the yaw motor 2, thereby enabling the yaw motor 2 to operate more stably. The thermal insulation cotton in the cold-proof cover 32 can effectively store the generated heat energy and effectively isolate the low temperature outside. The yaw motor 2 operates in a more suitable temperature environment, prolonging the service life and improving the reliability. At the same time, the cold-proof cover 32 provides protection, which can effectively protect the yaw motor 2 in harsh weather and prolong its service life.

[0032] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacements or changes within the technical scope disclosed in the present application according to the technical solution and concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A yaw motor, comprising a mounting base (1) and a yaw motor (2) mounted on the mounting base (1), wherein the yaw motor (2) is provided with a cold protection mechanism (3) on its exterior; Its features are: The cold protection mechanism (3) includes a movable rail frame (31) symmetrically installed on the fixed base (1) and a cold protection cover (32) set on the fixed base (1). A temperature sensor (4) is installed on the cold protection cover (32). An installation groove (36) is opened at the upper end of the cold protection cover (32). A sealing frame (33) for matching the installation groove (36) is installed at the upper end of the cold protection cover (32). A fixed frame (34) is inserted into the inner side of the sealing frame (33). A hot air blower assembly (342) is detachably installed inside the fixed frame (34). A ring plate (345) for overlapping the sealing frame (33) is installed on the fixed frame (34).

2. The yaw motor according to claim 1, characterized in that: The upper and lower ends of the fixed frame (34) are fixedly installed with air guide plates (341), and a positioning frame (343) is installed at the air guide plate (341) near the yaw motor (2). A dust filter (344) is fixedly installed on the positioning frame (343).

3. The yaw motor according to claim 2, characterized in that: The positioning frame (343) is fixedly connected to the air guide plate (341) near the yaw motor (2) by screws.

4. The yaw motor according to claim 1, characterized in that: Each movable rail frame (31) is provided with a sliding groove (35), and a limiting slider (322) for sliding connection with the sliding groove (35) is installed on the cooling cover (32).

5. The yaw motor according to claim 4, characterized in that: The cooling cover (32) is symmetrically provided with air guide grids (321), and the inner wall of the cooling cover (32) is bonded with heat insulation cotton.

6. The yaw motor according to claim 5, characterized in that: A signal converter (41) for connecting to the temperature sensor (4) is fixedly installed on the cooling cover (32).

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