A yaw bearing braking surface polishing device

Abstract

The utility model discloses a yaw bearing brake face polishing device, including the bottom plate, the top fixed connection of bottom plate has the fixing frame, the surface fixed connection of fixing frame has the speed reducer, the output shaft fixed connection of speed reducer has the fixed cylinder, the inside of fixed cylinder is provided with the cavity, the inside fixed connection of cavity has the bidirectional servo electric push rod, through the setting of extension cover, can assist realization yaw bearing and the coaxial positioning of fixed cylinder, start speed reducer, and the output shaft of speed reducer drives fixed cylinder rotation, and fixed cylinder further drives yaw bearing synchronous rotation, simultaneously, the cutting machine bed body of bottom plate top starts, and its cutter carries out polishing cutting to yaw bearing brake face in rotation, in whole polishing process, and annular slide contact line and trolleybus continue to power supply, and pressure sensor continues to monitor the clamping force, and guarantees device stable operation, and finally realizes yaw bearing brake face even, accurate polishing.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology, and in particular relates to a grinding device for the braking surface of a yaw bearing. Background Technology

[0002] Yaw bearings are core components of wind turbine generators and large rotating equipment. The flatness and roughness of their braking surfaces directly determine the reliability and safety of the equipment's braking. In the manufacturing process of yaw bearings, grinding the braking surfaces is a crucial step to ensure their precision.

[0003] When fixing a yaw bearing, if its coaxiality with the grinding mechanism is significantly deviated, eccentricity is likely to occur during the rotational grinding process, resulting in uneven grinding of different areas of the braking surface. Therefore, it is necessary to limit its position during fixing. During clamping, excessive clamping can damage the bearing workpiece, while excessive clamping may cause the workpiece to shift during grinding, leading to processing failures or even safety accidents. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a grinding device for the braking surface of a yaw bearing. By setting an extension sleeve, the coaxial positioning of the yaw bearing and the fixed cylinder can be assisted. The geared motor is started, and the output shaft of the geared motor drives the fixed cylinder to rotate. The fixed cylinder further drives the yaw bearing to rotate synchronously. At the same time, the cutting machine body at the top of the base plate is started, and its cutting tool grinds and cuts the braking surface of the rotating yaw bearing. Throughout the grinding process, the annular sliding contact line and the current collector are continuously powered, and the pressure sensor continuously monitors the clamping force to ensure stable operation of the device, ultimately achieving uniform and precise grinding of the braking surface of the yaw bearing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a yaw bearing brake surface grinding device, comprising a base plate, a fixed frame fixedly connected to the top of the base plate, a reduction motor fixedly connected to the surface of the fixed frame, a fixed cylinder fixedly connected to the output shaft of the reduction motor, a cavity provided inside the fixed cylinder, a bidirectional servo electric push rod fixedly connected inside the cavity, an arc-shaped plate fixedly connected to both ends of the bidirectional servo electric push rod, the arc-shaped plate movably penetrating through the fixed cylinder, a pressure sensor provided at the end of the fixed cylinder away from the bidirectional servo electric push rod, a fixed ring fixedly connected to the surface of the fixed cylinder via a connecting plate, multiple annular sleeves fixedly connected to the surface of the fixed ring, multiple threaded cylinders fixedly connected to the surface of the fixed ring, the threaded cylinders located inside the annular sleeves, a screw threadedly connected to the inside of the threaded cylinders, and an extension sleeve provided at one end of the screw.

[0006] Furthermore, the surface of the fixed cylinder is provided with an annular sliding contact line, the fixed frame is provided with a current collector, the current collector is provided with a copper brush, and the copper brush is slidably connected inside the annular sliding contact line.

[0007] Furthermore, a cutting machine tool body is provided at the top of the base plate.

[0008] Compared with the prior art, the beneficial effects of this utility model are: By setting the extension sleeve, the coaxial positioning of the yaw bearing and the fixed cylinder can be achieved. The geared motor is started, and the output shaft of the geared motor drives the fixed cylinder to rotate. The fixed cylinder further drives the yaw bearing to rotate synchronously. At the same time, the cutting machine body at the top of the base plate is started, and its tool grinds and cuts the braking surface of the rotating yaw bearing. During the entire grinding process, the annular sliding contact line and the current collector are continuously powered, and the pressure sensor continuously monitors the clamping force to ensure the stable operation of the device, and finally achieve uniform and precise grinding of the braking surface of the yaw bearing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0010] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0011] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0012] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0013] In the diagram: 1. Base plate; 2. Fixing frame; 3. Gear motor; 4. Fixing cylinder; 5. Fixing ring; 6. Threaded cylinder; 7. Ring sleeve; 8. Screw; 9. Extension sleeve; 10. Bidirectional servo electric push rod; 11. Arc plate; 12. Pressure sensor. Detailed Implementation

[0014] 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, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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. Example

[0016] See appendix Figure 1-4 As shown, a yaw bearing brake surface grinding device includes a base plate 1, a fixed frame 2 fixedly connected to the top of the base plate 1, a reduction motor 3 fixedly connected to the surface of the fixed frame 2, a fixed cylinder 4 fixedly connected to the output shaft of the reduction motor 3, a cavity provided inside the fixed cylinder 4, a bidirectional servo electric push rod 10 fixedly connected inside the cavity, an arc plate 11 fixedly connected to both ends of the bidirectional servo electric push rod 10 respectively, the arc plate 11 movably passing through the fixed cylinder 4, a pressure sensor 12 provided at the end of the fixed cylinder away from the bidirectional servo electric push rod 10, a fixed ring 5 fixedly connected to the surface of the fixed cylinder 4 through a connecting plate, a plurality of annular sleeves 7 fixedly connected to the surface of the fixed ring 5, a plurality of threaded cylinders 6 fixedly connected to the surface of the fixed ring 5, the threaded cylinders 6 being located inside the annular sleeves 7, a screw 8 being threadedly connected inside the threaded cylinders 6, and an extension sleeve 9 provided at one end of the screw 8.

[0017] The surface of the fixed cylinder 4 is provided with an annular sliding contact line, and the fixed frame 2 is provided with a current collector. The current collector is provided with a copper brush, which is slidably connected inside the annular sliding contact line.

[0018] The top of the base plate 1 is equipped with the cutting machine body.

[0019] Working principle: When grinding the yaw bearing brake surface, its center hole needs to be fitted onto the surface of the fixed cylinder 4. Simultaneously, the extension sleeve 9 on the surface of the fixed ring 5 is inserted into the corresponding hole. By rotating the screw, the extension sleeve 9 can be moved, thereby changing its length to prevent it from protruding from the yaw bearing brake surface and affecting the cutting process. The bidirectional servo electric push rod 10 can move the arc plate 11, which abuts against the hollow hole of the yaw bearing brake surface. The pressure sensor 12 can sense the contact pressure between the arc plate 11 and the yaw bearing brake surface. The extension sleeve 9 helps to achieve coaxial positioning of the yaw bearing and the fixed cylinder 4. The annular sliding contact line on the surface cooperates with the current collector on the fixed frame 2. The copper brush of the current collector is slidably connected inside the annular sliding contact line, providing continuous and stable power to the internal components of the fixed cylinder 4, such as the bidirectional servo electric push rod 10 and the pressure sensor 12, which rotate with the geared motor 3. The geared motor 3 is started, and the output shaft of the geared motor 3 drives the fixed cylinder 4 to rotate. The fixed cylinder 4 further drives the yaw bearing to rotate synchronously. At the same time, the cutting machine body at the top of the base plate 1 is started, and its cutting tool grinds and cuts the braking surface of the rotating yaw bearing. During the entire grinding process, the annular sliding contact line and the current collector are continuously powered, and the pressure sensor 12 continuously monitors the clamping force to ensure the stable operation of the device, and finally achieve uniform and precise grinding of the braking surface of the yaw bearing.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0021] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grinding device for the brake surface of a yaw bearing, comprising a base plate (1), wherein a fixing frame (2) is fixedly connected to the top of the base plate (1), and a geared motor (3) is fixedly connected to the surface of the fixing frame (2), characterized in that: The output shaft of the geared motor (3) is fixedly connected to a fixed cylinder (4). The fixed cylinder (4) has a cavity inside. A bidirectional servo electric push rod (10) is fixedly connected inside the cavity. Both ends of the bidirectional servo electric push rod (10) are fixedly connected to arc plates (11). The arc plates (11) movably pass through the fixed cylinder (4). A pressure sensor (12) is provided at one end of the fixed cylinder (4) away from the bidirectional servo electric push rod (10). A fixed ring (5) is fixedly connected to the surface of the fixed cylinder (4) through a connecting plate. Multiple annular sleeves (7) are fixedly connected to the surface of the fixed ring (5). Multiple threaded cylinders (6) are fixedly connected to the surface of the fixed ring (5). The threaded cylinders (6) are located inside the annular sleeves (7). A screw (8) is threadedly connected inside the threaded cylinders (6). An extension sleeve (9) is provided at one end of the screw (8).

2. The yaw bearing brake surface grinding device according to claim 1, characterized in that: The surface of the fixed cylinder (4) is provided with an annular sliding contact line, the fixed frame (2) is provided with a current collector, the current collector is provided with a copper brush, and the copper brush is slidably connected inside the annular sliding contact line.

3. The yaw bearing brake surface grinding device according to claim 1, characterized in that: The top of the base plate (1) is provided with a cutting machine body.

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