A wire embedding friction plate

By installing signal transmission lines and wear-resistant coatings on the friction pads, the problem of brake disc damage caused by friction pad wear is solved, enabling timely alarms and extending service life, thus improving the safety and reliability of the wind power generation system.

CN224497192UActive Publication Date: 2026-07-14HENAN KAIHUA ENERGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN KAIHUA ENERGY CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing wind power systems, the wear of the friction pads in the yaw brake is not detected in time, leading to the exhaustion of friction material, damage to the brake disc, and problems such as yaw failure and low safety.

Method used

A signal transmission line is fixed in the warning groove of the friction pad body. When the friction pad wears down to the warning groove, the signal transmission line breaks, the circuit is disconnected, the signal detection module senses the signal interruption, triggers an alarm, and prompts the replacement of the friction pad. This prevents the brake disc from rubbing against the steel back of the friction pad. A wear-resistant silicon nitride coating is also sprayed on the friction surface to improve its service life.

Benefits of technology

By using an alarm mechanism, yaw failures can be reduced, safety can be improved, and the service life of the friction plates can be extended.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224497192U_ABST
    Figure CN224497192U_ABST
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Abstract

The utility model discloses a kind of buried wire friction pieces, including detachably mounted on the friction piece body of mounting seat;Several warning grooves are equidistantly opened in the friction surface of the friction piece body, signal transmission line is fixed in middle warning groove, the both ends of the signal transmission line respectively pass through the mounting surface of mounting seat, and the both ends of signal transmission line are electrically connected signal detection module, the output of the signal detection module is connected with controller by wire, the output of the controller is connected with siren by wire, the buried wire friction piece, by fixing signal transmission line in warning groove, when friction piece body wears to warning groove, signal transmission line will be ground off, circuit is disconnected, signal detection module senses signal interruption, cooperate controller and siren trigger alarm, it is convenient to prompt staff to replace friction piece, avoid the situation that brake disc and friction piece steel back rub, reduce the yaw fault, improve safety.
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Description

Technical Field

[0001] This utility model belongs to the field of friction pad technology, and in particular relates to a wire-embedded friction pad. Background Technology

[0002] Wind power generation refers to the conversion of wind kinetic energy into mechanical kinetic energy, and then into electrical kinetic energy. It involves the wind turbine rotating under the action of wind, converting the kinetic energy of the wind into the mechanical energy of the turbine shaft. In wind power generation systems, in order to keep the blades aligned with the wind direction and maximize the utilization of wind energy, yaw brakes are usually used to limit the rotation of the yaw axis, thereby achieving directional control and motion stability.

[0003] In actual use, if the wear of the friction pads of the yaw brake reaches the standard and is not detected in time, the friction material will be worn out, and the steel back of the friction pad will come into contact with the brake disc, causing friction, which will damage the brake disc, cause yaw failure, and lead to wind turbine shutdown, resulting in low safety. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a embedded friction pad. By fixing a signal transmission line inside the warning groove, when the friction pad body wears down to the warning groove, the signal transmission line will break, the circuit will be disconnected, the signal detection module will sense the signal interruption, and the controller and alarm will trigger an alarm, which will help remind the staff to replace the friction pad. This avoids friction between the brake disc and the steel back of the friction pad, reduces yaw failure, and improves safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A type of embedded friction pad includes a friction pad body detachably mounted on a mounting base. The friction surface of the friction pad body has several equally spaced warning grooves. A signal transmission line is fixed within the central warning groove. Both ends of the signal transmission line pass through the mounting surface of the mounting base and are electrically connected to a signal detection module. The output of the signal detection module is connected to a controller via a wire, and the output of the controller is connected to an alarm via a wire. By fixing the signal transmission line within the warning groove, when the friction pad body wears down to the warning groove, the signal transmission line will break, the circuit will be disconnected, and the signal detection module will detect the signal interruption. This, in conjunction with the controller and the alarm, will trigger an alarm, prompting personnel to replace the friction pad. This prevents friction between the brake disc and the steel back of the friction pad, reduces yaw failures, and improves safety.

[0007] Furthermore, the friction surface of the friction pad body is coated with a wear-resistant coating, which is a silicon nitride coating. By spraying a wear-resistant coating, which is a silicon nitride coating, on the friction surface of the friction pad body, it has excellent high temperature resistance and wear resistance, thereby improving the service life of the friction pad body.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: By fixing the signal transmission line in the warning groove, when the friction pad body wears down to the warning groove, the signal transmission line will break, the circuit will be disconnected, the signal detection module will sense the signal interruption, and the controller and alarm will trigger an alarm, which will facilitate prompting the staff to replace the friction pad, avoid the friction between the brake disc and the steel back of the friction pad, reduce yaw failure, and improve safety. By spraying a wear-resistant coating on the friction surface of the friction pad body, the wear-resistant coating is a silicon nitride coating, which has excellent high temperature resistance and wear resistance, thereby improving the service life of the friction pad body. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the cross-sectional structure of the friction plate body of this utility model.

[0011] Figure 3 This is a block diagram of the system connection structure of this utility model.

[0012] In the diagram: 1. Mounting base, 2. Friction pad body, 3. Warning groove, 4. Signal transmission line, 5. Signal detection module, 6. Wire, 7. Controller, 8. Alarm. Detailed Implementation

[0013] 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.

[0014] 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

[0015] See appendix Figure 1-3 As shown, a type of embedded friction pad includes a friction pad body 2 detachably mounted on a mounting base 1. The friction surface of the friction pad body 2 has several equally spaced warning grooves 3. A signal transmission line 4 is fixed within the central warning groove 3. Both ends of the signal transmission line 4 pass through the mounting surface of the mounting base 1 and are electrically connected to a signal detection module 5. The output end of the signal detection module 5 is connected to a controller 7 via a wire 6. The output end of the controller 7 is connected to an alarm 8 via a wire 6. By fixing the signal transmission line 4 within the warning grooves 3, when the friction pad body 2 wears down to the warning groove 3, the signal transmission line 4 will break, the circuit will be disconnected, and the signal detection module 5 will sense the signal interruption. This, in conjunction with the controller 7 and the alarm 8, will trigger an alarm, prompting personnel to replace the friction pad. This prevents friction between the brake disc and the steel back of the friction pad, reducing yaw failures and improving safety.

[0016] The friction surface of the friction pad body 2 is coated with a wear-resistant coating, which is a silicon nitride coating. By spraying a wear-resistant coating on the friction surface of the friction pad body 2, the wear-resistant coating, which is a silicon nitride coating, has excellent high temperature resistance and wear resistance, thereby improving the service life of the friction pad body 2.

[0017] Working principle: When the friction pad body 2 wears normally, the friction material gradually thins. When it wears down to the warning groove 3, the signal transmission line 4 breaks. When the signal transmission line 4 is intact, the circuit remains conductive, and the signal detection module 5 continuously receives normal signals. When the signal transmission line 4 is broken, the circuit is disconnected, the signal detection module 5 senses the signal interruption, and triggers an alarm in conjunction with the controller 7 and the alarm 8. This facilitates the prompting of personnel to replace the friction pad, avoiding friction between the brake disc and the steel back of the friction pad, reducing yaw failures, and improving safety. By spraying a wear-resistant coating on the friction surface of the friction pad body 2, the wear-resistant coating is a silicon nitride coating, which has excellent high temperature resistance and wear resistance, thereby improving the service life of the friction pad body 2.

[0018] 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.

[0019] 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 wire-embedded friction pad, comprising a friction pad body detachably mounted on a mounting base, characterized in that: The friction surface of the friction pad body is provided with several warning grooves at equal intervals. A signal transmission line is fixed in the middle warning groove. The two ends of the signal transmission line pass through the mounting surface of the mounting base and are electrically connected to a signal detection module. The output end of the signal detection module is connected to a controller through a wire, and the output end of the controller is connected to an alarm through a wire.

2. The embedded wire friction pad according to claim 1, characterized in that: The friction surface of the friction pad body is coated with a wear-resistant coating, which is a silicon nitride coating.