Detection device for aerovane and encoder

Abstract

The utility model relates to the technical field of wind turbine generator detection equipment, and provides a detection device for an anemoscope and an encoder, which comprises an encoder junction box, a display host and an anemoscope, the signal conversion element is respectively connected with a data interface, a power supply binding post group and a phase binding post group, the power supply binding post group is connected with a power supply interface of the encoder, the phase binding post group is connected with a phase interface of the encoder, the display host is provided with a junction box interface, a first wind measurement interface and a second wind measurement interface, and the junction box interface is connected with the data interface. The first wind measurement interface is in data connection with an aerovane, the second wind measurement interface is in data connection with a to-be-detected aerovane, the encoder junction box records the pulse number of a to-be-detected encoder, and the display host displays the pulse number and wind speed and direction data. The utility model aims to provide a device capable of detecting whether the aerovane and the encoder have faults or not.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine detection equipment, in particular to a detection device for a wind direction and speed meter and an encoder. Background Art

[0002] As a clean and renewable energy source, the development and utilization of wind energy will not produce greenhouse gas emissions, which is conducive to slowing global warming, reducing environmental pollution and reducing dependence on fossil fuels. The use of wind energy requires the construction of wind turbines. Wind turbines use blades installed on high towers to capture wind energy. When the wind blows the blades to rotate, the blades will drive the low-speed shaft to rotate, and then drive the high-speed shaft after speeding up through the gearbox, thereby driving the generator to generate electricity. The generated electricity can be connected to the power grid for use by households, commercial and industrial users.

[0003] Encoders and anemometers are commonly used sensor devices in wind turbines. Encoders can measure the rotation angle and position of wind turbine blades or generator rotors, which is essential for controlling the pitch angle of the blades and ensuring that the generator is correctly aligned with the phase of the grid. In addition, encoders can help the control system adjust the speed of the generator to maintain constant power output, especially when the wind speed changes, to ensure power quality and grid stability. At the same time, encoders can help the system identify abnormal movements in a timely manner, such as overspeed rotation or rotation in an unplanned direction, thereby triggering safety protection mechanisms to prevent equipment failures.

[0004] The wind direction and anemometer can continuously monitor the wind speed and direction on site, provide real-time data support for the control system of the wind power generation system, help the control system dynamically adjust the pitch angle of the blades and the operating status of the generator, and guide the yaw system of the wind turbine to make the wind rotor always face the wind direction, ensure the effective use of wind energy, and improve power generation efficiency. When the wind speed exceeds the safety threshold, the wind speed and direction detector can also trigger the safety protection mechanism of the unit and perform shutdown or yaw operations to avoid damage caused by strong winds and protect the wind turbine from extreme weather.

[0005] Encoders and wind direction anemometers are important components to ensure efficient and safe operation of wind turbines. Encoders and wind direction anemometers need to be tested regularly to determine whether they are faulty. In existing tests, encoders and wind direction anemometers are usually tested separately. Encoders and wind direction anemometers require separate testing equipment, which is inconvenient for testers to carry and test. Therefore, it is necessary to propose a device that can detect whether wind direction anemometers and encoders are faulty. Utility Model Content

[0006] The main purpose of the utility model is to provide a device capable of detecting whether a wind direction and anemometer and an encoder are faulty.

[0007] To achieve the above-mentioned purpose, the utility model proposes a detection device for a wind direction and anemometer and an encoder, comprising an encoder junction box, a display host and a wind direction and anemometer, wherein a signal conversion element is arranged in the encoder junction box, and the signal conversion element is respectively connected with a data interface, a power terminal group and a phase terminal group, the power terminal group is used to be connected with the power interface of the encoder to be detected, and the phase terminal group is used to be connected with the phase interface of the encoder to be detected, the display host is provided with a junction box interface, a first wind measurement interface and a second wind measurement interface, the junction box interface is used to be connected with the data interface of the signal conversion element, the first wind measurement interface is used to be connected with the wind direction and anemometer, and the second wind measurement interface is used to be connected with the wind direction and anemometer to be detected, the encoder junction box is used to record the number of pulses of the encoder to be detected, and the display host is used to display the number of pulses output by the encoder junction box, the wind speed and direction data of the wind direction and anemometer and the wind speed and direction data of the wind direction and anemometer to be detected.

[0008] Optionally, the power terminal group includes two power terminals, one of which is used to connect to the first power interface of the encoder to be detected, and the other power terminal is used to connect to the second power interface of the encoder to be detected, and the phase terminal group includes three phase terminals, and the phase terminals are used to be connected one-to-one with the phase interface of the encoder to be detected.

[0009] Optionally, the power terminal and the phase terminal are respectively threadedly connected with a movable cap, one end of the power terminal and one end of the phase terminal are used to connect with a signal conversion element set in the encoder terminal box, and the other end of the power terminal and the other end of the phase terminal extend out of the encoder terminal box to be threadedly connected with the movable cap.

[0010] Optionally, the detection device for the wind direction and speed meter and encoder also includes a first data line, one side of the signal conversion element is connected to the data interface, and the encoder junction box also forms a cable opening for the first data line to connect the data interface and the junction box interface of the display host.

[0011] Optionally, the encoder junction box includes a box body and a cover plate that are detachably connected, one side of the box body is used to face the support surface, and the other side of the box body is covered with the cover plate, the cover plate is provided with a plurality of through holes, and the through holes are connected to the space formed in the box body for accommodating the signal conversion element; the through holes are used for the power terminal and the phase terminal to pass through the encoder junction box.

[0012] Optionally, the box body is used to extend toward one side of the cover plate to form a plurality of fixing columns, the fixing columns are formed with threaded holes, the cover plate is formed with a plurality of fixing holes, the fixing holes are arranged one-to-one corresponding to the fixing columns for screws to pass through, thereby fixing the cover plate to the box body.

[0013] Optionally, the detection device for the wind direction and anemometer and encoder also includes an encoder marking component, which includes an encoder shaft marking element and an encoder body marking element, the encoder shaft marking element is used to set a first marking line structure, the encoder shaft marking element is used to be sleeved on the encoder shaft so that the length direction of the first marking line structure is consistent with the length direction of the encoder shaft, the encoder body marking element is used to set a second marking line structure, and the encoder body element is used to be attached to a side of the encoder body facing the shaft so that the length direction of the second marking line structure is consistent with the radial direction of the encoder shaft.

[0014] Optionally, one side of the encoder shaft marking element is used to surround the outer wall surface of the encoder shaft, and the other side of the encoder shaft marking element is used to set the first marking line structure; one side of the encoder body marking element is used to be connected to the side of the encoder body facing the shaft, and the other side of the encoder body marking element is used to set the second marking line structure.

[0015] Optionally, the encoder junction box is provided with a plurality of phase terminal groups, and each phase terminal group is provided with three phase connecting poles.

[0016] Optionally, the detection device for the wind direction and anemometer and encoder further includes a power cord, and the display host is further provided with a power interface, and the power interface is connected to an external power supply via the power cord.

[0017] In the technical solution of the utility model, when it is necessary to detect the encoder, the power interface of the encoder to be detected is connected to the power terminal through a wire, the phase interface of the encoder to be detected is connected to the phase terminal, and then the data interface of the encoder junction box is connected to the display host. The rotating shaft of the encoder to be detected is rotated an arbitrary number of times, and the total number of pulses of the encoder rotation number is measured. The number of pulses in each circle is calculated to determine whether it is consistent with the encoder resolution, and whether the encoder is faulty (this calculation can be calculated by the user himself or by the display host, and the total number of pulses calculated by the display host is the current There are commonly used functions in the technology, which will not be elaborated here), specifically, if the encoder to be detected is normal, the total number of pulses = number of encoder rotations × resolution should be satisfied, and the number of pulses of the encoder for each rotation is consistent; when the wind direction and anemometer needs to be detected, the first wind measurement interface is connected to the wind direction and anemometer data, and the second wind measurement interface is connected to the wind direction and anemometer data to be detected, the wind direction and anemometer and the wind direction and anemometer to be detected are started, and the wind speed and direction data of the wind direction and anemometer are observed to be consistent with the wind speed and direction data of the wind direction and anemometer to be detected, so as to determine whether the wind direction and anemometer to be detected is faulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 the structures shown in these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the connection relationship of an embodiment of a detection device for a wind direction and anemometer and an encoder of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the encoder junction box;

[0021] Figure 3 This is a schematic diagram of an encoder marking component being set on an encoder to be tested.

[0022] Description of Figure Numbers:

[0023] 1-display host; 2-encoder junction box; 21-box body; 22-cover plate; 23-power terminal; 24-phase terminal; 25-movable cap; 3-encoder to be detected; 4-wind direction and anemometer; 5-wind direction and anemometer to be detected; 6-encoder shaft marking element; 61-first marking line structure; 7-encoder main body marking element; 71-second marking line structure.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The utility model provides a detection device for a wind direction and anemometer and an encoder.

[0031] Please refer to Figures 1 to 3The detection device for wind direction and anemometer and encoder includes an encoder junction box 2, a display host 1 and a wind direction and anemometer 4. A signal conversion element is arranged in the encoder junction box 2, and the signal conversion element is respectively connected with a data interface, a power terminal group and a phase terminal group. The power terminal group is used to connect with the power interface of the encoder 3 to be detected, and the phase terminal group is used to connect with the phase interface of the encoder 3 to be detected. The display host 1 is provided with a junction box interface, a first wind measurement interface and a second wind measurement interface. The junction box interface is used to connect with the data interface of the signal conversion element, the first wind measurement interface is used to connect with the wind direction and anemometer 4, and the second wind measurement interface is used to connect with the data of the wind direction and anemometer 5 to be detected. The encoder junction box 2 is used to record the number of pulses of the encoder 3 to be detected, and the display host 1 is used to display the number of pulses output by the encoder junction box 2, the wind speed and direction data of the wind direction and anemometer 4 and the wind speed and direction data of the wind direction and anemometer 5 to be detected. Specifically, using a signal conversion element to convert a differential signal or a PNP signal into an NPN signal and displaying it on the display host 1 is a conventional technical means and will not be elaborated here.

[0032] In the technical solution of the utility model, when the encoder needs to be tested, the power interface of the encoder 3 to be tested is connected to the power terminal 23 through a wire, the phase interface of the encoder 3 to be tested is connected to the phase terminal 24, and then the data interface of the encoder junction box 2 is connected to the display host 1, the rotating shaft of the encoder 3 to be tested is rotated an arbitrary number of times, the total number of pulses of the encoder rotation number of times is measured, and the number of pulses in each circle is calculated to be consistent with the encoder resolution to determine whether the encoder is faulty (this calculation can be calculated by the user himself, or by the display host 1, and the total number of pulses calculated by the display host 1 is Common functions in the prior art are not described here), specifically, if the encoder 3 to be detected is normal, the total number of pulses = number of encoder rotations × resolution, and the number of pulses of the encoder for each rotation is consistent; when the wind direction and anemometer 4 needs to be detected, the first wind measuring interface is connected to the wind direction and anemometer 4 data, and the second wind measuring interface is connected to the wind direction and anemometer 5 to be detected data, the wind direction and anemometer 4 and the wind direction and anemometer 5 to be detected are started, and the wind speed and direction data of the wind direction and anemometer 4 and the wind speed and direction data of the wind direction and anemometer 5 to be detected are observed to see whether they are consistent, so as to determine whether the wind direction and anemometer 5 to be detected is faulty.

[0033] Optionally, the power terminal group includes two power terminals 23, one of which is used to connect the first power interface of the encoder 3 to be detected, and the other of which is used to connect the second power interface of the encoder 3 to be detected, and the phase terminal group includes three phase terminals 24, which are used to be connected to the phase interface of the encoder 3 to be detected in a one-to-one correspondence. In this embodiment, one of the power terminals 23 is used to connect the 24V power interface of the encoder 3 to be detected, and the other of which is used to connect the 0V power interface of the encoder 3 to be detected.

[0034] Optionally, the power terminal 23 and the phase terminal 24 are respectively threadedly connected with a movable cap 25, one end of the power terminal 23 and the phase terminal 24 is used to connect with the signal conversion element provided in the encoder terminal box 2, and the other end of the power terminal 23 and the phase terminal 24 extends out of the encoder terminal box 2 to be threadedly connected with the movable cap 25. In this embodiment, a section of the power terminal 23 and the phase terminal 24 that exceeds the encoder terminal box 2 is provided with a thread, and the movable cap 25 is provided with an internal thread for matching with the thread.

[0035] Optionally, the detection device for wind direction and anemometer and encoder further includes a first data line, one side of the signal conversion element is connected to the data interface, and the encoder junction box 2 is further formed with a cable opening for the first data line to connect the data interface and the junction box interface of the display host 1. In this embodiment, the detection device for wind direction and anemometer and encoder further includes a second data line and a third data line, the wind direction and anemometer 4 is connected to the display host 1 via the second data line, and the wind direction and anemometer 5 to be detected is connected to the display host 1 via the third data line.

[0036] Optionally, the encoder junction box 2 includes a detachably connected box body 21 and a cover plate 22, one side of the box body 21 is used to face the support surface, and the other side of the box body 21 is covered with the cover plate 22, and the cover plate 22 is provided with the through hole, which is connected to the space formed in the box body 21 for accommodating the signal conversion element; the through hole is used for the power terminal 23 and the phase terminal 24 to pass through the encoder junction box 2. The detachably connected box body 21 and the cover plate 22 are provided to facilitate maintenance personnel to disassemble the measurement board housing to inspect the signal conversion element.

[0037] Optionally, the box body 21 is used to extend toward one side of the cover plate 22 to form a plurality of fixing columns, the fixing columns are formed with threaded holes, and the cover plate 22 is formed with a plurality of fixing holes, and the fixing holes are arranged one-to-one with the fixing columns for screws to pass through, thereby fixing the cover plate 22 to the box body 21. In this embodiment, the encoder junction box 2 is a rectangular box, and four fixing columns and four fixing holes are respectively provided. The fixing columns are respectively arranged at the four corners of the box body 21, and the fixing holes are respectively formed at the four corners of the cover plate 22.

[0038] Optionally, the detection device for wind direction and anemometer and encoder further includes an encoder marking component, the encoder marking component includes an encoder shaft marking element 6 and an encoder main body marking element 7, the encoder shaft marking element 6 is used to set a first marking line structure 61, the encoder shaft marking element 6 is used to be sleeved on the encoder shaft so that the length direction of the first marking line structure 61 is consistent with the length direction of the encoder shaft, the encoder main body marking element 7 is used to set a second marking line structure 71, the encoder main body element is used to be attached to the side of the encoder main body facing the shaft so that the length direction of the second marking line structure 71 is consistent with the radial direction of the encoder shaft. When detecting the encoder, the encoder shaft marking element 6 is sleeved on the encoder shaft, the encoder main body marking element 7 is attached to the side of the encoder main body facing the shaft, the first marking line structure 61 and the second marking line structure 71 are aligned, and then the encoder is connected to the encoder detection box, and then the encoder shaft is rotated, and when the first marking line structure 61 and the second marking line structure 71 overlap again, the encoder shaft can be recorded to rotate one circle; by setting the encoder marking component, it is convenient for the detection personnel to manually record the number of circles of the encoder shaft.

[0039] Optionally, one side of the encoder shaft marking element 6 is used to surround the outer wall surface of the encoder shaft, and the other side of the encoder shaft marking element 6 is used to set the first marking line structure 61. One side of the encoder body marking element 7 is used to connect to the side of the encoder body facing the shaft, and the other side of the encoder body marking element 7 is used to set the second marking line structure 71. The first marking line structure 61 and the second marking line structure 71 can be a marking line convex structure or a marking line concave structure, respectively.

[0040] Optionally, the encoder terminal box 2 is provided with multiple phase terminal groups, each of which is provided with three phase terminals 24. Each phase terminal group is used to connect to a phase interface of a type of encoder, so as to detect different types of encoders.

[0041] Optionally, the detection device for wind direction and anemometer and encoder further comprises a power cord, and the display host 1 is further provided with a power interface, and the power interface is connected to an external power source through the power cord. In this embodiment, the power cord is a three-wire plug power cord.

[0042] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A detection device for a wind direction and anemometer and an encoder, characterized in that: It includes an encoder junction box, a display host and a wind direction and anemometer. A signal conversion element is arranged in the encoder junction box. The signal conversion element is respectively connected to a data interface, a power terminal group and a phase terminal group. The power terminal group is used to connect to the power interface of the encoder to be detected, and the phase terminal group is used to connect to the phase interface of the encoder to be detected. The display host is provided with a junction box interface, a first wind measurement interface and a second wind measurement interface. The junction box interface is used to connect to the data interface of the signal conversion element. The first wind measurement interface is used to connect to the wind direction and anemometer, and the second wind measurement interface is used to connect to the wind direction and anemometer to be detected. The encoder junction box is used to record the number of pulses of the encoder to be detected, and the display host is used to display the number of pulses output by the encoder junction box, the wind speed and direction data of the wind direction and anemometer, and the wind speed and direction data of the wind direction and anemometer to be detected.

2. The detection device for wind direction and anemometer and encoder according to claim 1, characterized in that: The power terminal group includes two power terminals, one of which is used to connect the first power interface of the encoder to be detected, and the other power terminal is used to connect the second power interface of the encoder to be detected. The phase terminal group includes three phase terminals, and the phase terminals are used to be connected one-to-one with the phase interface of the encoder to be detected.

3. The detection device for wind direction and anemometer and encoder according to claim 2, characterized in that: The power terminal and the phase terminal are respectively threadedly connected with movable caps, one end of the power terminal and one end of the phase terminal are used to connect with the signal conversion element arranged in the encoder terminal box, and the other end of the power terminal and the other end of the phase terminal extend out of the encoder terminal box to be threadedly connected with the movable cap.

4. The detection device for wind direction and anemometer and encoder according to claim 3, characterized in that: It also includes a first data line, one side of the signal conversion element is connected to the data interface, and the encoder junction box is also formed with a cable opening for the first data line to connect the data interface and the junction box interface of the display host.

5. The detection device for wind direction and anemometer and encoder according to claim 4, characterized in that: The encoder junction box includes a detachably connected box body and a cover plate, one side of the box body is used to face the support surface, and the other side of the box body is covered with the cover plate, and the cover plate is provided with a plurality of through holes, which are connected to the space formed in the box body for accommodating the signal conversion element; the through holes are used for allowing the power terminal and the phase terminal to pass through the encoder junction box.

6. The detection device for wind direction and anemometer and encoder according to claim 5, characterized in that: The box body is used to extend toward one side of the cover plate to form a plurality of fixing columns, the fixing columns are formed with threaded holes, and the cover plate is formed with a plurality of fixing holes, the fixing holes and the fixing columns are arranged one by one to allow screws to pass through, thereby fixing the cover plate to the box body.

7. The detection device for wind direction and anemometer and encoder according to claim 1, characterized in that: It also includes an encoder marking component, which includes an encoder shaft marking element and an encoder main body marking element. The encoder shaft marking element is used to set a first marking line structure, and the encoder shaft marking element is used to be sleeved on the encoder shaft so that the length direction of the first marking line structure is consistent with the length direction of the encoder shaft. The encoder main body marking element is used to set a second marking line structure, and the encoder main body element is used to be attached to a side of the encoder body facing the shaft so that the length direction of the second marking line structure is consistent with the radial direction of the encoder shaft.

8. The detection device for wind direction and anemometer and encoder according to claim 7, characterized in that: One side of the encoder shaft marking element is used to surround the outer wall surface of the encoder shaft, and the other side of the encoder shaft marking element is used to set the first marking line structure. One side of the encoder body marking element is used to be connected to the side of the encoder body facing the shaft, and the other side of the encoder body marking element is used to set the second marking line structure.

9. The detection device for wind direction and anemometer and encoder according to claim 6, characterized in that: The encoder junction box is provided with a plurality of phase terminal groups, and each phase terminal group is provided with three phase connecting posts.

10. The detection device for wind direction and anemometer and encoder according to any one of claims 1 to 9, characterized in that: It also includes a power cord, and the display host is also provided with a power interface, and the power interface is connected to an external power supply through the power cord.

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