Glaze layer removing device for yaw brake disc of wind turbine generator

Abstract

The utility model provides a wind turbine generator yaw brake disc glaze layer removing device which can effectively remove a surface glaze layer of a yaw brake disc so as to effectively prevent the yaw brake disc from making abnormal sounds such as harsh sounds and vibration in the yaw process of a wind turbine generator and guarantee reliable operation of equipment. Comprising a supporting rod installed on a fan base and a gear rack mechanism installed on the supporting rod, the yaw brake disc is located between an upper executing mechanism and a lower executing mechanism, and the upper executing mechanism and the lower executing mechanism each comprise a housing and a grinding wheel installed in the housing. The upper executing mechanism and the lower executing mechanism are driven by the gear and rack mechanism to do linear motion and meet the requirement that a closed inner cavity is formed through the housing during working, the grinding wheel in the closed state makes contact with the yaw brake disc, and the inner cavity is connected with dust collecting equipment.

Description

Technical Field

[0001] The utility model relates to the field of yaw systems of wind turbine generator sets, in particular to a glaze layer cleaning device for a yaw brake disc of a wind turbine generator set. Background Art

[0002] During the operation of wind turbines, due to the wear of the yaw friction plate, a certain amount of powder will be formed, and the powder will fall on the surface of the yaw brake disc. Since the southern region is relatively humid, very small powder will also adhere to the yaw brake disc, which will emit abnormal noises such as yaw harshness during the yaw process, and sometimes vibration will occur. As the wind turbine yaws, the yaw brake friction plate and the yaw brake disc come into contact with each other, and a layer of glaze will be formed on the yaw brake friction plate. Due to the structural limitations of the yaw brake, once the glaze layer is formed on the yaw brake friction plate, it is very difficult to handle. The usual method is to manually grind the surface of the yaw brake disc with 40-mesh sandpaper to indirectly eliminate the glaze layer on the surface of the yaw brake friction plate and the yaw brake disc. However, after the grinding is completed, about a month later, the abnormal noises such as harshness and vibration will reappear, seriously affecting the reliable operation of the wind turbine. Utility Model Content

[0003] In view of the above problems, the utility model provides a glaze cleaning device for the yaw brake disc of a wind turbine, which can effectively clean the glaze layer on the surface of the yaw brake disc, thereby effectively avoiding the yaw brake disc from emitting abnormal noises such as harshness and vibration during the yaw of the wind turbine, thereby ensuring the reliable operation of the equipment.

[0004] The utility model adopts the following technical scheme, a glaze removal device for the yaw brake disc of a wind turbine, characterized in that it includes a support rod installed on a fan base and a gear rack mechanism installed on the support rod, the yaw brake disc is located between an upper actuator and a lower actuator, the upper actuator and the lower actuator both include a cover shell and a grinding wheel installed in the cover shell, the upper actuator and the lower actuator are both driven to move linearly by the gear rack mechanism, and a closed inner cavity is formed by the cover shell during operation, and the grinding wheel is in contact with the yaw brake disc when in a closed state, and the inner cavity is connected to a dust collection device.

[0005] Further, the gear rack mechanism includes a rack and an upper gear and a lower gear meshing with the rack, the rack is mounted on the support rod, the upper gear and the lower gear are respectively mounted on the upper support and the lower support, and the upper actuator and the lower actuator are respectively mounted on the upper support and the lower support;

[0006] Furthermore, the upper actuator and the lower actuator are driven by the corresponding upper gear and the lower gear to make linear motion in the opposite up and down directions along the rack;

[0007] Further, the cover shell is divided into an upper cover shell and a lower cover shell, the upper cover shell is mounted on the upper support, the lower cover shell is mounted on the lower support, the grinding wheel is divided into an upper grinding wheel and a lower grinding wheel, the upper grinding wheel and the lower grinding wheel are respectively installed in the upper cover shell and the lower cover shell;

[0008] Further, an upper limit rod is installed in the upper cover shell, a lower limit rod is installed in the lower cover shell, the yaw brake disc is located between the upper limit rod and the lower limit rod, the upper limit rod and the lower limit rod are both equipped with a driving motor, and the upper grinding wheel and the lower grinding wheel are respectively connected to the corresponding driving motor;

[0009] Furthermore, when in a closed state, the upper limit rod and the lower limit rod are both in contact with the yaw brake disc;

[0010] Furthermore, the dust collecting device is connected to the upper cover shell through a pipeline and is communicated with the inner cavity.

[0011] The beneficial effect of the utility model is that when grinding is required, the upper actuator and the lower actuator are driven by the gear rack mechanism, so that part of the grinding area of ​​the yaw brake disc can be closed and disposed. At this time, the grinding wheel and the dust collection equipment can work together, so as not only to grind the glaze layer on the surface of the yaw brake disc, but also to collect the powder after grinding, thereby avoiding abnormal sounds and vibrations such as harsh yaw of the wind turbine set, with high work efficiency and environmental protection, and can ensure the reliable operation of the equipment, and has good use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model when it is not started;

[0013] Figure 2 It is a structural schematic diagram of the utility model in the starting state. DETAILED DESCRIPTION

[0014] like Figure 1 , Figure 2As shown, the utility model is a glaze removal device for a yaw brake disc of a wind turbine, comprising a support rod 2 installed on a fan base 1 and a gear rack mechanism installed on the support rod 2, a yaw brake disc 3 is located between an upper actuator and a lower actuator, the upper actuator and the lower actuator both include a cover shell and a grinding wheel installed in the cover shell, the upper actuator and the lower actuator are driven to move linearly by the gear rack mechanism, and a closed inner cavity 4 is formed by the cover shell during operation, and the grinding wheel is in contact with the yaw brake disc 3 when in a closed state, the inner cavity 4 is connected to a dust collection device 5, and the dust collection device 5 adopts an existing dust collector. In the actual yaw system of a wind turbine generator set, the yaw brake disc 3 is also installed on the fan base 1, which is not further displayed in the utility model.

[0015] The rack and pinion mechanism includes a rack 6 and an upper gear 7 and a lower gear 8 meshing with the rack 6. The rack 6 is mounted on the support rod 2. The upper gear 7 and the lower gear 8 are respectively mounted on the upper support 9 and the lower support 10. The upper actuator and the lower actuator are respectively mounted on the upper support 9 and the lower support 10. The upper actuator and the lower actuator are respectively driven by the corresponding upper gear 7 and the lower gear 8 to perform reverse vertical linear motion along the rack 6. The upper actuator and the lower actuator perform reverse vertical linear motion at the same time.

[0016] The cover shell is divided into an upper cover shell 11 and a lower cover shell 12, the upper cover shell 11 is mounted on the upper support 9, and the lower cover shell 12 is mounted on the lower support 10. The grinding wheel is divided into an upper grinding wheel 13 and a lower grinding wheel 14, and the upper grinding wheel 13 and the lower grinding wheel 14 are respectively installed in the upper cover shell 11 and the lower cover shell 12; an upper limit rod 15 is installed in the upper cover shell 11, and a lower limit rod 16 is installed in the lower cover shell 12. The yaw brake disc 3 is located between the upper limit rod 15 and the lower limit rod 16. The upper limit rod 15 and the lower limit rod 16 are both equipped with a driving motor 17, and the upper grinding wheel 13 and the lower grinding wheel 14 are respectively connected to the corresponding driving motors 17;

[0017] When in the closed state, the upper limit rod 15 and the lower limit rod 16 are in contact with the yaw brake disc 3, and when the upper limit rod 15 and the lower limit rod 16 collide with the yaw brake disc 3, the upper cover shell 11 and the lower cover shell 12 are just in a completely closed state, and the gear rack mechanism stops moving to prevent continuing to drive the upper cover shell 11 and the lower cover shell 12 to cause damage; the dust collection device 5 is connected to the upper cover shell 11 through a pipe and is communicated with the inner cavity 4.

[0018] In the utility model, when the fan is yawed and untied (the fan yaws for more than one circle during this process), the device starts to work and can be driven by the gear rack mechanism to drive the upper actuator and the lower actuator to make reverse vertical linear motions at the same time, so that part of the area of ​​the yaw brake disc 3 can be closed and disposed. When grinding is not required, the device is in an open state. When grinding is required, the device is actuated to close the area. At this time, the grinding wheel is actuated and the dust collection device 5 is actuated to grind the glaze layer on the surface of the yaw brake disc 3, and collect the powder after grinding, thereby effectively completing the grinding of the glaze layer in all areas of the yaw brake disc 3 of the fan, and the effect is better.

[0019] The utility model can also be used alone, configured with a time relay for control, and actuated once every N days to complete the automatic grinding of the glaze layer in all areas of the yaw brake disc 3 of the fan, which is relatively convenient to implement.

[0020] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0021] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A glaze removal device for a yaw brake disc of a wind turbine, characterized in that: It includes a support rod installed on the fan base and a gear rack mechanism installed on the support rod, the yaw brake disc is located between the upper actuator and the lower actuator, the upper actuator and the lower actuator both include a cover shell and a grinding wheel installed in the cover shell, the upper actuator and the lower actuator are driven to move linearly by the gear rack mechanism, and a closed inner cavity is formed by the cover shell during operation, and the grinding wheel is in contact with the yaw brake disc when in a closed state, and the inner cavity is connected to a dust collection device.

2. The glaze removal device for the yaw brake disc of a wind turbine according to claim 1, characterized in that: The rack and pinion mechanism includes a rack and an upper gear and a lower gear meshing with the rack, the rack is mounted on the support rod, the upper gear and the lower gear are respectively mounted on the upper support and the lower support, and the upper actuator and the lower actuator are respectively mounted on the upper support and the lower support.

3. The glaze removal device for the yaw brake disc of a wind turbine according to claim 2, characterized in that: The upper actuator and the lower actuator are driven by the corresponding upper gear and the lower gear respectively to make linear motion in the opposite up-down directions along the rack.

4. The glaze removal device for the yaw brake disc of a wind turbine according to claim 2, characterized in that: The cover shell is divided into an upper cover shell and a lower cover shell, the upper cover shell is mounted on the upper support, and the lower cover shell is mounted on the lower support. The grinding wheel is divided into an upper grinding wheel and a lower grinding wheel, and the upper grinding wheel and the lower grinding wheel are respectively installed in the upper cover shell and the lower cover shell.

5. The glaze removal device for the yaw brake disc of a wind turbine according to claim 4, characterized in that: An upper limit rod is installed in the upper cover shell, a lower limit rod is installed in the lower cover shell, the yaw brake disc is located between the upper limit rod and the lower limit rod, and drive motors are installed on the upper limit rod and the lower limit rod. The upper grinding wheel and the lower grinding wheel are respectively connected to the corresponding drive motors.

6. The glaze removal device for the yaw brake disc of a wind turbine according to claim 5, characterized in that: When in the closed state, the upper limit rod and the lower limit rod are in contact with the yaw brake disc.

7. The glaze removal device for the yaw brake disc of a wind turbine according to claim 4, characterized in that: The dust collecting device is connected to the upper housing through a pipeline and communicates with the inner cavity.

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