Compact totally-closed yaw brake motor structure

Abstract

The utility model discloses a compact totally-closed yaw brake motor structure, relates to the technical field of yaw brake motors, and is used for solving the technical problem that an existing yaw brake motor is difficult to mount and maintain due to space limitation. The motor flange end cover structure can achieve a good sealing effect while the height of the yaw brake motor is reduced. In the compact totally-closed yaw brake motor structure, an outer spigot of the flange end cover adopts a totally-closed structure, and a mounting hole, matched with the base, of the flange end cover adopts a counter bore structure; an installation hole is omitted in the machine base, and the machine base is used in cooperation with the flange end cover in a double-lug mode. The front end cover and the rear end cover are fixed to the two ends of the machine base through long screws.

Description

Technical Field

[0001] The utility model relates to the technical field of yaw brake motors, in particular to a compact fully enclosed yaw brake motor structure. Background Art

[0002] The yaw brake motor of wind power generation is mainly used to drive the yaw reduction box, thereby driving the yaw bearing to rotate, so that the axis of the wind rotor is consistent with the wind direction, ensuring that the wind turbine captures the maximum wind energy; in addition, when the cable leading out of the cabin is over-entangled due to the yaw effect of the wind turbine, the motor can implement the cable unwinding function. The built-in brake on the motor can work together with the yaw main brake to ensure that the cabin is doubly locked when the wind turbine is generating electricity; however, the motor structure on the market currently uses an extended end cover seal, and the base uses a traditional three-phase asynchronous motor base.

[0003] In other words, the existing yaw brake motor has the following main defects:

[0004] (1) The motor end cover is an extended fully sealed flange end cover, while the non-extended type is a non-fully sealed structure;

[0005] (2) The motor base adopts the traditional three-phase asynchronous motor base, which cannot meet the requirement of reducing the motor height and increases the maintenance cost of the motor. Utility Model Content

[0006] The purpose of the utility model is to provide a compact and fully enclosed yaw brake motor structure, which is used to solve the technical problem that the existing yaw brake motor is difficult to install and maintain due to limited space; it reduces the height of the yaw brake motor while enabling the motor flange end cover structure to achieve a good sealing effect.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A compact fully enclosed yaw brake motor structure, comprising: a flange end cover and a machine base;

[0009] The outer stopper of the flange end cover adopts a fully sealed structure, and the mounting hole for the flange end cover to match the machine base adopts a countersunk structure;

[0010] The machine base has no mounting holes, and the machine base is of a double-ear type used in conjunction with the flange end cover;

[0011] The front and rear end covers are fixed to the two ends of the machine base through long screws.

[0012] In actual application, the winding stator core is pressed into the inside of the machine base, the deep groove ball bearings are pressed into the two ends of the rotor, and the rotor with the deep groove ball bearings pressed into it is installed in the bearing chamber of the rear end cover, the skeleton oil seal is sealed in the oil seal position of the rear end cover, and a hole retaining ring is fixed.

[0013] Among them, the wave spring is installed in the bearing chamber of the flange end cover, and the rear end cover equipped with the skeleton oil seal and the flange end cover equipped with the wave spring are assembled together and locked with the machine base by bolts, and the bolts are provided with spring washers.

[0014] Specifically, the electromagnetic brake is assembled on the main shaft and fixed with a shaft retaining ring.

[0015] Furthermore, the fan is assembled on the main shaft having the electromagnetic brake, and the fan is clamped by a shaft retaining ring.

[0016] Furthermore, the rear end cover is fixed with a fan cover by bolts, and the fan cover is used to protect the fan.

[0017] Furthermore, the upper and lower ends of the base are respectively equipped with lifting rings.

[0018] Furthermore, the shaft extension end of the main shaft is equipped with an A-type flat key.

[0019] Furthermore, a junction box is installed on the base.

[0020] Compared with the prior art, the compact fully enclosed yaw brake motor structure described in the utility model has the following advantages:

[0021] In the compact and fully enclosed yaw brake motor structure provided by the utility model, the outer stop of the flange end cover adopts a fully sealed structure, and the mounting hole of the flange end cover and the machine base adopts a countersunk structure; at the same time, the machine base cancels the mounting hole, and the machine base adopts a double-ear type to cooperate with the flange end cover; therefore, the mounting hole of the flange end cover changes the through hole of the traditional structure into a countersunk hole, thereby ensuring that the fully sealed structure of the outer stop of the end cover is not destroyed, and further ensuring that the reducer grease will not leak out and affect the reducer oil pressure and the insulation performance of the motor; in addition, in the compact and fully enclosed yaw brake motor structure provided by the utility model, the flange end cover and the machine base cooperate to simultaneously meet the requirements of shortening the machine base and reduce the assembly process (the traditional assembly process of 6 or 8 bolts is reduced to 3 bolts, and the assembly process of the nuts is also reduced), thereby improving the assembly efficiency.

[0022] It should be noted that the mounting hole of the traditional flange end cover adopts a through-hole structure, which makes it impossible to seal the outer stop of the end cover, causing the reducer grease to leak out and enter the motor, thereby failing to ensure the reducer oil pressure and affecting the insulation performance of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a flange end cover from a first perspective in a compact fully enclosed yaw brake motor structure provided by an embodiment of the utility model;

[0024] Figure 2 A second perspective structural schematic diagram of a flange end cover in a compact fully enclosed yaw brake motor structure provided by an embodiment of the utility model;

[0025] Figure 3 A schematic structural diagram of a first-view perspective of a base in a compact fully enclosed yaw brake motor structure provided by an embodiment of the utility model;

[0026] Figure 4 A second perspective structural schematic diagram of a machine base in a compact fully enclosed yaw brake motor structure provided by an embodiment of the utility model;

[0027] Figure 5 A schematic structural diagram of a compact and fully enclosed yaw brake motor structure provided in an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1-rotor; 2-main shaft; 3-A-type flat key; 4-skeleton oil seal; 5-wave spring; 6-deep groove ball bearing; 7-stator core with winding; 8-rear end cover; 9-electromagnetic brake; 10-fan cover; 11-bolt; 12-fan; 13-lifting ring; 14-machine base; 15-flange end cover. DETAILED DESCRIPTION

[0030] Currently, there is no product on the market that has a shortened flange end cover and achieves a fully sealed effect, while the machine base adopts a shortened structure to ensure that the yaw brake motor is shortened as a whole.

[0031] For ease of understanding, the compact and fully enclosed yaw brake motor structure provided by the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings of the specification.

[0032] The utility model embodiment provides a compact fully enclosed yaw brake motor structure, such as Figure 1-Figure 5 As shown, it includes: a flange end cover 15 and a base 14;

[0033] The outer stopper of the flange end cover 15 adopts a fully sealed structure, and the mounting hole for the flange end cover 15 to cooperate with the base 14 adopts a countersunk hole structure;

[0034] The base 14 has no mounting holes (such as Figure 4 The base 14 is a double-ear type used in conjunction with the flange end cover 15;

[0035] The front and rear end covers are fixed to both ends of the machine base 14 by long screws.

[0036] Compared with the prior art, the compact fully enclosed yaw brake motor structure described in the embodiment of the utility model has the following advantages:

[0037] In the compact and fully enclosed yaw brake motor structure provided by the embodiment of the present invention, the outer stop of the flange end cover 15 adopts a fully sealed structure, and the mounting hole of the flange end cover 15 and the machine base 14 adopts a countersunk structure; at the same time, the machine base 14 cancels the mounting hole, and the machine base 14 adopts a double-ear type to cooperate with the flange end cover 15; therefore, the mounting hole of the flange end cover 15 changes the through hole of the traditional structure into a countersunk hole, thereby ensuring that the fully sealed structure of the outer stop of the end cover is not destroyed, thereby ensuring that the reducer grease will not leak out and affect the reducer oil pressure and the insulation performance of the motor; in addition, in the compact and fully enclosed yaw brake motor structure provided by the embodiment of the present invention, the flange end cover 15 cooperates with the machine base 14 to simultaneously meet the requirements of shortening the machine base and reduce the assembly process (the traditional assembly process of 6 or 8 bolts is reduced to 3 bolts, and the assembly process of the nuts is also reduced), thereby improving the assembly efficiency.

[0038] In practical application, such as Figure 5 As shown, the winding stator core 7 can be pressed into the interior of the machine base 14, the deep groove ball bearings 6 can be pressed into both ends of the rotor 1, and the rotor 1 with the deep groove ball bearings 6 pressed into it can be installed in the bearing chamber of the rear end cover 8, the skeleton oil seal 4 can be installed in the oil seal position of the rear end cover 8, and a hole retaining ring can be fixed.

[0039] Among them, Figure 5 As shown, the wave spring 5 can be installed in the bearing chamber of the flange end cover 15, and the rear end cover 8 equipped with the skeleton oil seal 4 can be assembled together with the flange end cover 15 equipped with the wave spring 5, and can be locked with the machine base 14 by bolts, and the bolts can be provided with spring washers.

[0040] Specifically, Figure 5 As shown, the electromagnetic brake 9 can be assembled on the main shaft 2 and can be fixed with a shaft retaining ring, thereby effectively preventing the electromagnetic brake 9 from axial movement.

[0041] Furthermore, if Figure 5 As shown, the fan 12 can be assembled on the main shaft 2 having the electromagnetic brake 9, and the fan 12 can be clamped by a shaft retaining ring.

[0042] Furthermore, if Figure 5 As shown, the rear end cover 8 can be fixed with a fan cover 10 by bolts 11 , and the fan cover 10 can be used to protect the fan 12 .

[0043] Furthermore, if Figure 5As shown, the upper and lower ends of the base 14 can be respectively equipped with lifting rings (M10) 13.

[0044] Furthermore, if Figure 5 As shown, the shaft extension end of the main shaft 2 can be equipped with an A-type flat key 3.

[0045] Furthermore, if Figure 5 As shown, a junction box may be installed at the base 14 .

[0046] In summary, the embodiment of the utility model provides a compact fully enclosed yaw brake motor structure which has the following advantages:

[0047] 1. Shortened fully sealed flange end cover, its structure is matched with the new type of machine base to achieve full sealing and reduce the height of the motor body;

[0048] 2. The shortened special structure of the base is matched with the new flange end cover to achieve full sealing and reduce the height of the motor body.

[0049] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A compact fully enclosed yaw brake motor structure, characterized in that: Including: flange end cover and machine base; The outer stopper of the flange end cover adopts a fully sealed structure, and the mounting hole for the flange end cover to match the machine base adopts a countersunk structure; The machine base has no mounting holes, and the machine base is of a double-ear type used in conjunction with the flange end cover; The front and rear end covers are fixed to the two ends of the machine base through long screws.

2. The compact fully enclosed yaw brake motor structure according to claim 1, characterized in that: A winding stator core is pressed into the interior of the machine base, deep groove ball bearings are pressed into both ends of the rotor, and the rotor with the deep groove ball bearings pressed into the bearing chamber of the rear end cover is installed, the skeleton oil seal is sealed in the oil seal position of the rear end cover, and a hole retaining ring is fixed.

3. The compact fully enclosed yaw brake motor structure according to claim 2, characterized in that: The wave spring is installed in the bearing chamber of the flange end cover, and the rear end cover equipped with the skeleton oil seal and the flange end cover equipped with the wave spring are assembled together and locked with the machine base by bolts, and the bolts are provided with spring washers.

4. The compact fully enclosed yaw brake motor structure according to claim 3, characterized in that: The electromagnetic brake is assembled on the main shaft and fixed with a shaft retaining ring.

5. The compact fully enclosed yaw brake motor structure according to claim 4, characterized in that: The fan is assembled on the main shaft with the electromagnetic brake, and the fan is clamped by a shaft retaining ring.

6. The compact fully enclosed yaw brake motor structure according to claim 5, characterized in that: The rear end cover is fixed with a fan cover by bolts, and the fan cover is used to protect the fan.

7. The compact fully enclosed yaw brake motor structure according to claim 6, characterized in that: The upper and lower ends of the machine base are respectively equipped with lifting rings.

8. The compact fully enclosed yaw brake motor structure according to claim 7, characterized in that: The shaft extension end of the main shaft is equipped with an A-type flat key.

9. The compact fully enclosed yaw brake motor structure according to claim 8, characterized in that: A junction box is installed at the base.

Images