Retrofitting and transforming structure of vibration monitoring module

Abstract

The utility model provides an added and modified structure of a vibration monitoring module, and relates to the technical field of vibration monitoring modules. The high-frequency suppression module comprises a module body, a high-frequency suppression unit and a fixing unit, the high-frequency suppression unit is located between the module body and a unit cabinet, and the module body, the high-frequency suppression unit and the unit cabinet are sequentially connected together through the fixing unit. By additionally arranging the high-frequency suppression unit between the module body and the unit cabinet body, high-frequency vibration signals can be filtered, high-frequency vibration energy generated when most of yaw abnormal sounds are filtered out, and meanwhile vibration signals within the normal range of a unit are almost not affected. According to the yaw control method, the acceleration over-limit fault in the yaw process can be restrained, stable operation of a unit is guaranteed under the condition of abnormal yaw sound, the failure rate of the unit is reduced, and no adverse effect is generated on safe production of the unit.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration monitoring modules, in particular to an installation and transformation structure of a vibration monitoring module. Background Art

[0002] When the wind turbine generator set yaws abnormally, high-frequency vibration will be generated on the friction surface. The filter circuit of the vibration monitoring module of the unit will be oversaturated due to the high-frequency vibration generated by the yaw abnormal noise, and a relatively large interference signal will be detected, thereby reporting an acceleration over-limit fault during the yaw process, and at the same time, the feedback of the unit's real vibration signal will be missed at the time of interference. Utility Model Content

[0003] The purpose of the utility model is to provide a vibration monitoring module installation modification structure to solve the technical problem that the vibration monitoring module in the prior art will detect a relatively large interference signal due to high-frequency vibration, thereby reporting an acceleration over-limit fault during the yaw process. The preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects as described below.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A retrofitting and modification structure of a vibration monitoring module comprises a module body, a high-frequency suppression unit and a fixing unit, wherein the high-frequency suppression unit is located between the module body and a unit cabinet, and the fixing unit sequentially connects the module body, the high-frequency suppression unit and the unit cabinet together.

[0006] Preferably, the high-frequency suppression unit comprises a high-frequency suppression pad, and two end surfaces of the high-frequency suppression pad are in contact with the module body and the unit cabinet respectively.

[0007] Preferably, the high-frequency suppression pad is made of rubber material.

[0008] Preferably, the high-frequency suppression pad is in a cylindrical shape.

[0009] Preferably, the module body comprises a module main body and an extension fixing plate, the two extension fixing plates are respectively connected to two ends of the module main body, and the fixing unit sequentially connects the extension fixing plates, the high-frequency suppression unit and the unit cabinet together.

[0010] Preferably, the fixing unit comprises a plurality of bolt and nut assemblies, each of which corresponds to a high-frequency suppression unit, and the extended fixing plate, the high-frequency suppression unit and the unit cabinet are provided with bolt holes for connecting the bolt and nut assemblies at corresponding positions.

[0011] Preferably, the number of the high-frequency suppression units is four, and two high-frequency suppression units are symmetrically arranged at both ends of each of the extending fixing plates.

[0012] Preferably, the bolt and nut assembly includes M6*20 bolts and nuts.

[0013] The beneficial effects of the utility model are as follows: by installing a high-frequency suppression unit between the module body and the unit cabinet, the high-frequency vibration signal can be filtered, and most of the high-frequency vibration energy generated by the yaw abnormal sound can be filtered out, while the vibration signal within the normal range of the unit has almost no effect. It can suppress the acceleration over-limit fault during the yaw process, ensure the stable operation of the unit in the case of yaw abnormal sound, reduce the unit failure rate, and will not have an adverse effect on the safe production of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a side view structural diagram of the utility model;

[0016] Figure 2 It is a top view of the structure of the utility model;

[0017] In the figure, 1 is the module body; 11 is the module body; 12 is the extension fixing plate;

[0018] 2. High frequency suppression unit;

[0019] 3. Fixed unit;

[0020] 4. Unit cabinet. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or location relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] Reference Figure 1 and Figure 2 The utility model provides a retrofit structure for a vibration monitoring module, including a module body 1, a high-frequency suppression unit 2 and a fixing unit 3. The high-frequency suppression unit 2 is located between the module body 1 and the unit cabinet 4. The fixing unit 3 connects the module body 1, the high-frequency suppression unit 2 and the unit cabinet 4 together in sequence.

[0025] By installing a high-frequency suppression unit 2 between the module body 1 and the unit cabinet 4, the high-frequency vibration signal can be filtered, and most of the high-frequency vibration energy generated by the yaw abnormal sound can be filtered out, while having almost no effect on the vibration signal within the normal range of the unit. It can suppress the acceleration over-limit fault during the yaw process, ensure the stable operation of the unit in the case of yaw abnormal sound, reduce the unit failure rate, and will not have an adverse effect on the safe production of the unit.

[0026] In this embodiment, the module body 1 is preferably a vibration monitor, and the structure of the vibration monitor itself is relatively conventional in the prior art, so no further description is given.

[0027] As an optional implementation, the high-frequency suppression unit 2 includes a high-frequency suppression pad, whose two end faces are respectively in contact with the module body 1 and the unit cabinet 4. The high-frequency suppression pad adopts a pad structure, which can achieve a shock-absorbing effect, thereby filtering out most of the high-frequency vibration energy generated by the yaw noise.

[0028] As an optional implementation, the high-frequency suppression pad is made of rubber material. The rubber material is relatively soft and has good elasticity. Making it into a high-frequency suppression pad can have a good shock-absorbing effect and effectively filter the high-frequency vibration energy generated by yaw noise.

[0029] As an optional implementation, the high-frequency suppression pad is in the shape of a cylinder, which has a relatively stable structure and good supporting effect.

[0030] As an optional implementation, the module body 1 includes a module body 11 and an extended fixing plate 12. The module body 11 is the main structure of the vibration monitoring module. There are two extended fixing plates 12. The two extended fixing plates 12 are respectively connected to the two ends of the module body 11, and are usually connected in an integrated connection manner. The fixing unit 3 connects the extended fixing plate 12, the high-frequency suppression unit 2 and the unit cabinet 4 together in turn.

[0031] As an optional implementation, the fixing unit 3 includes a plurality of bolt and nut assemblies, each of which corresponds to a high-frequency suppression unit 2. The extended fixing plate 12, the high-frequency suppression unit 2 and the unit cabinet 4 are provided with bolt holes for connecting the bolt and nut assemblies at corresponding positions. The bolt and nut assemblies preferably include M6*20 bolts and nuts, and the bolt connection method is easy to disassemble and assemble.

[0032] As an optional implementation, the number of high-frequency suppression units 2 is four, and two high-frequency suppression units 2 are symmetrically arranged at both ends of each extended fixing plate 12. In this arrangement, the four high-frequency suppression units 2 are located at four corners, which has a good fixing effect and makes the overall connection structure more stable.

[0033] The above are only specific implementations of the present invention, but the protection scope of the present invention 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 present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vibration monitoring module retrofit structure, characterized in that: The invention comprises a module body (1), a high-frequency suppression unit (2) and a fixing unit (3), wherein the high-frequency suppression unit (2) is located between the module body (1) and a machine cabinet (4), and the fixing unit (3) sequentially connects the module body (1), the high-frequency suppression unit (2) and the machine cabinet (4).

2. The retrofitting and modification structure of the vibration monitoring module according to claim 1 is characterized in that: The high-frequency suppression unit (2) comprises a high-frequency suppression pad body, and two end surfaces of the high-frequency suppression pad body are in contact with the module body (1) and the unit cabinet (4) respectively.

3. The retrofitting structure of the vibration monitoring module according to claim 2, characterized in that: The high-frequency suppression pad body is made of rubber material.

4. The retrofitting and modification structure of the vibration monitoring module according to claim 2 is characterized in that: The high-frequency suppression pad is in the shape of a cylinder.

5. The retrofitting and modification structure of the vibration monitoring module according to claim 1, characterized in that: The module body (1) comprises a module body (11) and an extended fixing plate (12), wherein the two extended fixing plates (12) are respectively connected to two ends of the module body (11), and the fixing unit (3) sequentially connects the extended fixing plates (12), the high-frequency suppression unit (2) and the unit cabinet (4).

6. The retrofitting and modification structure of the vibration monitoring module according to claim 5, characterized in that: The fixing unit (3) comprises a plurality of bolt and nut assemblies, each of which corresponds to one of the high-frequency suppression units (2), and bolt holes for connecting the bolt and nut assemblies are provided at corresponding positions on the extended fixing plate (12), the high-frequency suppression unit (2) and the unit cabinet (4).

7. The retrofitting and modification structure of the vibration monitoring module according to claim 6, characterized in that: The number of the high-frequency suppression units (2) is four, and two high-frequency suppression units (2) are symmetrically arranged at both ends of each of the extended fixing plates (12).

8. The retrofitting and modification structure of the vibration monitoring module according to claim 6, characterized in that: The bolt and nut assembly includes an M6*20 bolt and a nut.

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