Encoder fixing support
By designing an encoder mounting bracket and using adjustment components and threaded connections to adjust the encoder position, the problem of encoder damage caused by vibration eccentricity was solved, and concentric installation of the encoder and the pitch motor shaft was achieved, ensuring detection stability and accuracy.
Patent Information
- Application Number
- CN202422675311.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-01
AI Technical Summary
When the encoder is installed directly on the pitch motor, vibration can easily cause the threaded rod to loosen, resulting in eccentricity, damage to the bearing, or jamming, thus affecting the detection effect.
Design an encoder mounting bracket, including a base and an adjustment assembly, to adjust the encoder position via a support and an adjustment rod to ensure coaxiality with the pitch motor shaft, including threaded connection and pressure block limit, to achieve real-time adjustment.
It effectively avoids encoder damage, ensures detection stability and accuracy, expands the scope of application, and facilitates maintenance.
Smart Images
Figure CN223500420U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of detection device installation technology, and in particular to an encoder mounting bracket. Background Technology
[0002] The pitch control system is an important component of a wind turbine generator set. Its purpose is to automatically adjust the angle between the blades and the wind direction according to the wind speed, thereby achieving a constant rotor speed. To ensure the normal operation of the pitch control system, an encoder needs to be installed at the pitch motor to monitor the rotational displacement of the blades in real time.
[0003] In the existing technology, the encoder is usually directly mounted on the shaft of the pitch motor, and then fixed to the housing of the pitch motor by other connecting parts such as threaded rods.
[0004] However, pitch motors vibrate to a certain extent during use, which can cause the threaded rod between the encoder and the pitch motor to loosen, causing the encoder to become eccentric, resulting in damage to the encoder bearings, or even jamming. Utility Model Content
[0005] In view of this, embodiments of this application provide an encoder mounting bracket that can adjust the position of the encoder in real time to ensure that the encoder and the shaft of the pitch motor remain coaxial.
[0006] To achieve the above objectives, the present application provides an encoder mounting bracket, which adopts the following technical solution:
[0007] This application provides an encoder mounting bracket, including:
[0008] A base for connecting to a pitch motor, and the base has mounting holes for mounting an encoder on the shaft of the pitch motor.
[0009] An adjustment assembly includes a support member and an adjustment rod. The support member is disposed on the end face of the base away from the pitch motor. The adjustment rod is mounted on the support member and is movable relative to the support member. The end of the adjustment rod abuts against the encoder to adjust the position of the encoder.
[0010] In one possible implementation, the support members are arranged in a ring around the encoder to form a support ring.
[0011] In one possible implementation, the number of adjusting rods is set to multiple, and each adjusting rod is circumferentially spaced on the support ring.
[0012] In one possible implementation, the support member has a threaded hole;
[0013] The adjusting rod passes through the threaded hole, and the adjusting rod is connected to the support member by a thread.
[0014] One possible implementation also includes pressing blocks;
[0015] The pressure block is installed at the end of the adjusting rod, and the adjusting rod is used to abut against the encoder via the pressure block.
[0016] In one possible implementation, the pressure block is provided with a groove for matching the encoder, and the encoder abuts against the groove.
[0017] In one possible implementation, a fixing component is further included, which is detachably connected between the base and the pitch motor, and the fixing component is configured to fix the base to the pitch motor.
[0018] In one possible implementation, the fixing component includes a threaded rod and a fastener configured to secure between the base and the pitch motor.
[0019] The base is provided with a connection hole, the threaded rod is connected to the pitch motor and passes through the connection hole, and the threaded rod is connected to the fastener by a thread.
[0020] In one possible implementation, the number of connection holes is set to multiple, with each connection hole distributed at the corner of the base.
[0021] In one possible implementation, the base is fan-shaped.
[0022] An encoder mounting bracket provided in this application includes a base and an adjustment assembly, wherein the adjustment assembly includes a support member and an adjustment rod.
[0023] When the encoder becomes eccentric, that is, when the encoder and the pitch motor shaft are not coaxial, the operator can drive the adjusting rod to move in the opposite direction to the eccentric direction of the encoder relative to the support. The encoder, which is in contact with the end of the adjusting rod, can move along with the adjusting rod until the encoder returns to the position coaxial with the pitch motor shaft.
[0024] Compared to the encoder installation methods in the prior art, the encoder mounting bracket provided in this application embodiment can adjust the position of the encoder in real time according to the eccentric direction of the encoder, ensuring that the encoder and the shaft of the pitch motor remain concentric, thereby avoiding damage to the encoder during the detection process. Attached Figure Description
[0025] The specific implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation described herein is only for illustration and explanation of the embodiments of this application, and the embodiments of this application are not limited to the specific implementation described below.
[0026] Figure 1 This is a schematic diagram of the encoder mounting bracket provided in an embodiment of this application;
[0027] Figure 2 for Figure 1 Schematic diagram of the middle base;
[0028] Figure 3 for Figure 1 Cross-sectional view of surface AA.
[0029] Explanation of reference numerals in the attached figures:
[0030] 100 - Base;
[0031] 110 - Mounting hole; 120 - Connection hole;
[0032] 200-Adjustment component;
[0033] 210 - Support component;
[0034] 211 - Threaded hole;
[0035] 220 - Adjusting rod;
[0036] 300-pressed block;
[0037] 310 - Groove.
[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the embodiments of this application in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application and how the technical solutions of the embodiments of this application solve the above-mentioned technical problems will be clearly and completely described below with reference to specific embodiments and the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0040] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.
[0041] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "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 the embodiments of this application 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 the embodiments of this application.
[0042] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.
[0043] In this application, the terms "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0044] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.
[0045] The pitch control system is an important component of a wind turbine generator set. Its purpose is to automatically adjust the angle between the blades and the wind direction according to the wind speed, thereby achieving a constant rotor speed. To ensure the normal operation of the pitch control system, an encoder needs to be installed at the pitch motor to monitor the rotational displacement of the blades in real time.
[0046] In the existing technology, the encoder is usually directly mounted on the shaft of the pitch motor, and then fixed to the housing of the pitch motor by other connecting parts such as threaded rods.
[0047] However, pitch motors vibrate to a certain extent during use, which can cause the threaded rod between the encoder and the pitch motor to loosen, causing the encoder to become eccentric, resulting in damage to the encoder bearings, or even jamming.
[0048] Based on this, an encoder fixing bracket provided in this application includes a base and an adjustment component, wherein the adjustment component includes a support member and an adjustment rod.
[0049] When the encoder becomes eccentric, that is, when the encoder and the pitch motor shaft are not coaxial, the operator can drive the adjusting rod to move in the opposite direction to the eccentric direction of the encoder relative to the support. The encoder, which is in contact with the end of the adjusting rod, can move along with the adjusting rod until the encoder returns to the position coaxial with the pitch motor shaft.
[0050] Compared to the encoder installation methods in the prior art, the encoder mounting bracket provided in this application embodiment can adjust the position of the encoder in real time according to the eccentric direction of the encoder, ensuring that the encoder and the shaft of the pitch motor remain concentric, thereby avoiding damage to the encoder during the detection process.
[0051] The technical solutions of the embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.
[0052] Reference Figures 1 to 3 As shown, this application embodiment provides an encoder mounting bracket, including a base 100 for connecting to a pitch motor, and a mounting hole 110 for mounting the encoder on the shaft of the pitch motor; and an adjustment assembly 200, including a support member 210 and an adjustment rod 220. The support member 210 is disposed on the end face of the base 100 away from the pitch motor, and the adjustment rod 220 is mounted on the support member 210 and can move relative to the support member 210. The end of the adjustment rod 220 abuts against the encoder to adjust the position of the encoder.
[0053] In this embodiment, when the encoder is eccentric, that is, when the encoder and the shaft of the pitch motor are not coaxial, the operator can drive the adjusting rod 220 to move relative to the support 210 in the opposite direction to the eccentric direction of the encoder according to the eccentric direction of the encoder. The encoder, which abuts against the end of the adjusting rod 220, can move along with the movement of the adjusting rod 220 until the encoder returns to the position coaxial with the shaft of the pitch motor.
[0054] Compared to the encoder installation methods in the prior art, the encoder mounting bracket provided in this application embodiment can adjust the position of the encoder in real time according to the eccentric direction of the encoder, ensuring that the encoder and the shaft of the pitch motor remain concentric, thereby avoiding damage to the encoder during the detection process.
[0055] Reference Figure 1 As shown, in some embodiments, the support member 210 is arranged in a ring with the encoder as the center, forming a support ring.
[0056] Since encoder eccentricity does not occur in a specific direction, but can occur in any circumferential direction of the encoder, in the above embodiment, the support member 210 is arranged in a ring with the encoder as the center. By changing the installation position of the adjusting rod 220 in the circumferential direction of the support member, the eccentricity of the encoder in any circumferential direction can be adjusted, thus expanding the adjustable range of the adjusting rod 220 and thereby expanding the applicability of the encoder fixing bracket.
[0057] Furthermore, refer to Figure 1 As shown, in some embodiments, the number of adjusting rods 220 is set to multiple, and each adjusting rod 220 is circumferentially spaced on the support ring.
[0058] It is understood that in this embodiment, the density of the adjusting rods 220 on the support ring is not limited, as long as the adjustable range of the adjusting rods 220 can cover the circumferential direction of the encoder. Specifically, in the above embodiment, the number of adjusting rods 220 is set to four to cope with the eccentricity of the encoder in any circumferential direction. At the same time, compared with a single adjusting rod 220, the operator can select the adjusting rod 220 in the corresponding direction according to the eccentricity direction of the encoder for adjustment, which is more convenient. Of course, the number of adjusting rods 220 can be three, five, or other numbers, which will not be elaborated here.
[0059] Reference Figure 1 and Figure 3 As shown, in some embodiments, the support member 210 has a threaded hole 211; the adjusting rod 220 passes through the threaded hole 211, and the adjusting rod 220 and the support member 210 are connected by threads.
[0060] It is understood that, in this embodiment, the specific connection method between the adjusting rod 220 and the support member 210 is not limited, as long as it ensures that the adjusting rod 220 can move relative to the support member 210. Specifically, in the above embodiment, the adjusting rod 220 and the support member 210 are connected by a thread, which not only facilitates the assembly between the adjusting rod 220 and the support member 210, but also makes the adjustment distance of the adjusting rod 220 easier to control, avoiding the need for operators to repeatedly adjust the position of the encoder during operation.
[0061] Reference Figure 1 and Figure 3 As shown, in some embodiments, a pressure block 300 is also included; the pressure block 300 is mounted on the end of the adjusting rod 220, and the adjusting rod 220 is used to abut against the encoder via the pressure block 300.
[0062] In the above embodiment, a pressure block 300 is provided at the end of the adjusting rod 220. The adjusting rod 220 abuts against the encoder through the pressure block 300 to increase the contact area between the adjusting rod 220 and the encoder. This improves the fit strength between the adjusting rod 220 and the encoder, while preventing the force applied by the adjusting rod 220 to the encoder from causing deformation of the encoder surface and affecting the normal use of the encoder.
[0063] Furthermore, refer to Figure 1 and Figure 3 As shown, in some embodiments, the pressure block 300 is provided with a groove 310 for matching with the encoder, and the encoder abuts against the groove 310.
[0064] Because the pitch motor vibrates to some extent during use, and the encoder is connected to the pitch motor shaft, the encoder will also vibrate along with the pitch motor during the detection process, leading to errors in the detection results. In the above embodiment, a groove 310 matching the encoder is provided on the pressure block 300, which can limit the encoder in multiple directions such as up, down, left, and right, ensuring the stability of the encoder during the detection process and thus ensuring the accuracy of the detection results.
[0065] In some embodiments (not shown in this embodiment), a fixing component is also included, which is detachably connected between the base 100 and the pitch motor, and the fixing component is configured to fix the base 100 to the pitch motor.
[0066] Here, by using a fixing component, the connection between the encoder mounting bracket and the pitch motor is made detachable. Compared to welding or other methods, this makes it easier for staff to repair or replace the encoder mounting bracket when it is damaged.
[0067] Furthermore, in some embodiments (not illustrated in this embodiment), the fixing component includes a threaded rod and a fastener, the fastener being configured to be fastened between the base 100 and the pitch motor; the base 100 is provided with a connection hole 120, the threaded rod is connected to the pitch motor and passes through the connection hole 120, and the threaded rod and the fastener are connected by threads.
[0068] It is understood that, in this embodiment, the specific connection method between the base 100 and the pitch motor is not limited, as long as it ensures that the base 100 can be fixed on the pitch motor. Specifically, in the above embodiment, a threaded rod and fasteners are used as a bridge to set the connection between the base 100 and the pitch motor as a threaded connection, which facilitates the assembly between the base 100 and the pitch motor.
[0069] Furthermore, refer to Figure 2 As shown, in some embodiments, the number of connection holes 120 is set to multiple, and each connection hole 120 is distributed at the corner of the base 100.
[0070] It is understood that the number and arrangement of the connection holes 120 are not limited in this application. Specifically, in the above embodiment, the number of connection holes 120 is set to multiple and each connection hole 120 is distributed at the corner of the base 100, which can support the base 100 in various directions and further improve the stability of the encoder detection process.
[0071] Reference Figure 1 and Figure 2 As shown, in some embodiments, the base 100 is fan-shaped.
[0072] It is understood that the specific shape of the base 100 is not limited in this application, and it can be set to a circle or a square, etc. Specifically, in the above embodiment, the fan-shaped base 100 can effectively increase the airflow speed around the pitch motor, improve the heat dissipation efficiency of the pitch motor, and prevent the pitch motor from overheating.
[0073] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the embodiments of this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in the embodiments of this application can be achieved, and this document does not impose any restrictions.
[0074] The specific embodiments described above do not constitute a limitation on the scope of protection of the embodiments of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the principles of the embodiments of this application should be included within the scope of protection of the embodiments of this application.
Claims
1. An encoder mounting bracket, characterized in that, include: A base (100) is provided for connecting to a pitch motor, and a mounting hole (110) is provided on the base (100) for an encoder to be fitted onto the shaft of the pitch motor. An adjustment assembly (200) includes a support member (210) and an adjustment rod (220). The support member (210) is disposed on the end face of the base (100) away from the pitch motor. The adjustment rod (220) is mounted on the support member (210) and is movable relative to the support member (210). The end of the adjustment rod (220) abuts against the encoder to adjust the position of the encoder.
2. The encoder mounting bracket according to claim 1, characterized in that, The support member (210) is arranged in a ring around the encoder to form a support ring.
3. The encoder mounting bracket according to claim 2, characterized in that, The number of the adjusting rods (220) is set to multiple, and each adjusting rod (220) is circumferentially spaced on the support ring.
4. The encoder mounting bracket according to any one of claims 1-3, characterized in that, The support member (210) has a threaded hole (211); The adjusting rod (220) passes through the threaded hole (211), and the adjusting rod (220) and the support member (210) are connected by threads.
5. The encoder mounting bracket according to any one of claims 1-3, characterized in that, It also includes a pressure block (300); The pressure block (300) is installed at the end of the adjusting rod (220), and the adjusting rod (220) is used to abut against the encoder through the pressure block (300).
6. The encoder mounting bracket according to claim 5, characterized in that, The pressure block (300) is provided with a groove (310) for matching the encoder, and the encoder abuts against the groove (310).
7. The encoder mounting bracket according to any one of claims 1-3, characterized in that, It also includes a fixing component that is detachably connected between the base (100) and the pitch motor, and the fixing component is configured to fix the base (100) to the pitch motor.
8. The encoder mounting bracket according to claim 7, characterized in that, The fixing assembly includes a threaded rod and a fastener configured to secure between the base (100) and the pitch motor. The base (100) is provided with a connection hole (120), the threaded rod is connected to the pitch motor and passes through the connection hole (120), and the threaded rod is connected to the fastener by a thread.
9. The encoder mounting bracket according to claim 8, characterized in that, The number of the connecting holes (120) is set to multiple, and each connecting hole (120) is distributed at the corner of the base (100).
10. The encoder mounting bracket according to any one of claims 1-3, characterized in that, The base (100) is fan-shaped.