Blade position display testing device and simulation maintenance learning platform

Abstract

The utility model relates to the technical field of wind power generation, and discloses a blade position display testing device and a simulation maintenance learning platform, the blade position display testing device comprises a support, a track, a simulation motion mechanism, a control box and a blade position sensor, the track is arranged on the support, and the simulation motion mechanism is arranged on the track. The simulation motion mechanism comprises a driving mechanism and a sliding block, the fixed end of the driving mechanism is arranged on the support, the free end of the driving mechanism is connected with the sliding block, the sliding block is limited in the track in a sliding mode, and the control box is used for controlling the driving mechanism to move and adjusting the displacement value of the sliding block. The blade position sensor is arranged at one end of the track and electrically connected with the control box. In the technical scheme of the utility model, the movement of the blade on the wind driven generator is simulated through the movement of the sliding block, and the correction process of the blade position sensor on the wind driven generator is simulated by adjusting the correction value of the blade position sensor, thereby achieving the purpose of teaching.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, in particular to a blade position display test device and a simulation maintenance learning platform. Background Art

[0002] A wind turbine is a device that uses wind energy to generate electricity. It usually consists of blades, a generator, and a tower. When the wind blows through the blades, the blades rotate, and through the connection with the generator, the generator rotates to generate electricity.

[0003] Each blade is connected to a hydraulic pitch cylinder, which is used to adjust the angle of the blade. To ensure the synchronization of the opening and closing of each blade, a blade position sensor is installed on each blade. The blade position sensor is installed at the end of the three hydraulic pitch cylinders of the wind turbine. The blade position sensor must be calibrated regularly. Calibration of the blade position sensor usually requires the following steps: 1. Make sure the wind turbine is in a safe shutdown state, cut off the power supply and wait for all rotating parts to stop running. 2. Determine a known reference position, which can be the initial position of the blade or other known standard position. 3. Calibrate the blade position sensor to the standard position. However, the calibration of the blade position sensor is extremely complicated. Once a deviation occurs during the calibration process, the entire device is easily damaged. Utility Model Content

[0004] The main purpose of the utility model is to provide a blade position display test device and a simulated maintenance learning platform, aiming to provide a simulated maintenance learning platform that allows trainees to simulate the blade position sensor calibration process.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a blade position display test device and a simulated maintenance learning platform, including:

[0006] Bracket;

[0007] A track, wherein the track is arranged on the bracket, and the ends of the bracket close to the track are provided with limit sensors;

[0008] A simulated motion mechanism, the simulated motion mechanism comprises a driving mechanism and a slider, the fixed end of the driving mechanism is arranged on the bracket, the free end of the driving mechanism is connected to the slider, and the slider is limited to the track;

[0009] A control box, the control box is used to control the movement of the driving mechanism and adjust the displacement value of the slider; and

[0010] A blade position sensor is arranged at one end of the track, and the blade position sensor is electrically connected to the control box.

[0011] In an embodiment of the present invention, the simulated motion mechanism further includes a control device, which is disposed on the bracket and electrically connected to the driving mechanism.

[0012] In an embodiment of the present utility model, the control box includes a control button and a display screen, the button is used to adjust the movement of the driving mechanism, and the display screen is used to display the displacement value of the slider.

[0013] In an embodiment of the present utility model, the driving mechanism is a hydraulic telescopic rod, the bracket is provided with a mounting portion, and the fixed end of the hydraulic telescopic rod is provided on the mounting portion.

[0014] In one embodiment of the present invention, the bracket includes two columns and a crossbeam connecting the two columns, the mounting portion is disposed on one of the columns, and the blade position sensor is disposed on the other column.

[0015] In an embodiment of the present invention, the hydraulic telescopic rod is rotatably disposed on the mounting portion, and the hydraulic telescopic rod is disposed at an angle to the crossbeam.

[0016] In an embodiment of the present invention, the slider includes a magnetic sheet, the magnetic sheet is formed with a mounting hole, and the mounting hole is sleeved on the track.

[0017] In one embodiment of the utility model, the blade position display test device also includes a power module and a control switch, the power module and the control switch are arranged on the beam, and the power module, the control switch and the simulated motion mechanism are all electrically connected.

[0018] In an embodiment of the present invention, the bracket further comprises a mounting rod, the mounting rod is arranged on the cross beam, one end of the track is arranged on the mounting rod, and the other end is arranged on the blade position sensor.

[0019] The utility model also proposes a simulation maintenance learning platform, the simulation maintenance learning platform includes a blade position display test device, the blade position display test device includes:

[0020] Bracket;

[0021] A track, wherein the track is arranged on the bracket, and the ends of the bracket close to the track are provided with limit sensors;

[0022] A simulated motion mechanism, the simulated motion mechanism comprising a driving mechanism and a slider, the fixed end of the driving mechanism is arranged on the bracket, the free end of the driving mechanism is connected to the slider, and the slider is limited to the track;

[0023] A control box, the control box is used to control the movement of the driving mechanism and adjust the displacement value of the slider; and

[0024] A blade position sensor is arranged at one end of the track, and the blade position sensor is electrically connected to the control box.

[0025] In the technical scheme of the utility model, a blade position display test device and a simulated maintenance learning platform are proposed, wherein the blade position display test device includes a bracket, a track, a simulated motion mechanism and a blade position sensor, the track is arranged on the bracket, and the end of the bracket close to the track is provided with a limit sensor, the driving mechanism will drive the slider to move along the track until the slider passes through the limit sensor at the end of the track, at this time, the blade position sensor will identify the position of the slider, and feed back the displacement value of the slider to the control box, the control box will read the displacement value of the slider, the operator will verify whether the value on the control box is consistent with the actual position value of the slider, if not, adjust the control box until its reading matches the reading on the control box, which means that the correction is successful, in this scheme, the movement of the slider is used to replace the movement of the blade, so as to adjust the blade position sensor correction value by measuring the deviation between the actual displacement value of the slider (the actual position of the slider) and the displacement value (the value read on the control box) to simulate the correction process of the blade position sensor on the wind turbine, so as to achieve the purpose of teaching, without the need for students to operate on the wind turbine, and also avoid the possibility of damage to the blade position sensor of the wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1 A three-dimensional structural diagram of an embodiment of a blade position display test device provided by the utility model;

[0028] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0029] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0030] Figure 4 It is a schematic diagram of the position of the magnetic sheet moving to the left limiter;

[0031] Figure 5This is a schematic diagram of the position of the magnetic sheet moving to the right limiter.

[0032] Description of Figure Numbers:

[0033] Label name Label name 1000 Test device for blade position display 321 Magnetic sheet 1 Bracket 4 Control Box 11 Column 41 Control buttons 12 beam 42 Display 13 Installation Department 5 Blade Position Sensor 14 Mounting rod 6 Limit sensor 2 track 61 Left limiter 3 Simulation of motion mechanism 62 Right stopper 31 Driving mechanism 7 Power Module 311 Hydraulic telescopic rod 8 Control switch 32 slider 9 Air switch

[0034] 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

[0035] 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.

[0036] 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.

[0037] In addition, the descriptions of "first", "second", etc. in the present utility model 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" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0038] A wind turbine is a device that uses wind energy to generate electricity. It usually consists of blades, a generator, and a tower. When the wind blows through the blades, the blades rotate, and through the connection with the generator, the generator rotates to generate electricity.

[0039] Each blade is connected to a hydraulic pitch cylinder, which is used to adjust the angle of the blade. To ensure the synchronization of the opening and closing of each blade, a blade position sensor is installed on each blade. The blade position sensor is installed at the end of the three hydraulic pitch cylinders of the wind turbine. The blade position sensor must be calibrated regularly. Calibration of the blade position sensor usually requires the following steps: 1. Make sure the wind turbine is in a safe shutdown state, cut off the power supply and wait for all rotating parts to stop running. 2. Determine a known reference position, which can be the initial position of the blade or other known standard position. 3. Calibrate the blade position sensor to the standard position. However, the calibration of the blade position sensor is extremely complicated. Once a deviation occurs during the calibration process, the entire device is easily damaged.

[0040] In order to solve the above problems, the utility model proposes a blade position display test device, which aims to provide a simulation maintenance learning platform that allows trainees to simulate the blade position sensor calibration process. Figures 1 to 5 The present invention is a schematic structural diagram of an embodiment of a blade position display test device provided by the present invention.

[0041] Please refer to Figures 1 to 5 The utility model proposes a blade position display test device 1000, including a bracket 1, a track 2, a simulation motion mechanism 3, a control box 4 and a blade position sensor 5. The track 2 is arranged on the bracket 1, and the end of the bracket 1 close to the track 2 is provided with a limit sensor 6. The simulation motion mechanism 3 includes a driving mechanism 31 and a slider 32. The fixed end of the driving mechanism 31 is arranged on the bracket 1, and the free end of the driving mechanism 31 is connected to the slider 32. The slider 32 is limited to the track 2. The control box 4 is used to control the movement of the driving mechanism 31 and adjust the displacement value of the slider 32. The blade position sensor 5 is arranged at one end of the track 2, and the blade position sensor 5 is electrically connected to the control box 4.

[0042] In the technical solution of the utility model, a blade position display test device 1000 and a simulation maintenance learning platform are proposed, wherein the blade position display test device 1000 includes a bracket 1, a track 2, a simulation motion mechanism 3 and a blade position sensor 5, the track 2 is arranged on the bracket 1, and the end of the bracket 1 close to the track 2 is provided with a limit sensor 6, the driving mechanism 31 will drive the slider 32 to move along the track 2 until the slider 32 passes the limit sensor 6 at the end of the track 2, at this time, the blade position sensor 5 will identify the position of the slider 32, and feed back the displacement value of the slider 32 to the control box 4, the control box 4 will read the displacement value of the slider 32, and the operator The staff will verify whether the value on the control box 4 is consistent with the actual position value of the slider 32. If not, the control box 4 will be adjusted until its reading matches the reading on the control box 4, which means that the calibration is successful. In this solution, the movement of the slider 32 is used to replace the movement of the blade, so as to adjust the blade position sensor 5 correction value to simulate the calibration process of the blade position sensor 5 on the wind turbine by measuring the deviation between the actual displacement value of the slider 32 (the actual position of the slider 32) and the expected displacement value (the value read on the control box 4), so as to achieve the purpose of teaching. There is no need for students to operate on the wind turbine, and the possibility of damage to the blade position sensor 5 of the wind turbine is avoided.

[0043] It should be noted that the hydraulic telescopic rod 311 is arranged at an angle to the column 11. For details, please refer to Figure 4 A mounting portion 13 is provided on one of the columns 11 of the bracket 1, and a fixed end of the hydraulic telescopic rod 311 is hingedly mounted on the mounting portion 13, and a free end of the hydraulic telescopic rod 311 is connected to the slider 32. When the trainee controls the movement of the hydraulic telescopic rod 311 through the control box 4, the hydraulic telescopic rod 311 can be retracted by pressing the left button. Since the mounting portion 13 is always in a fixed state, the slider 32 starts to move to the left under the drive of the hydraulic telescopic rod 311; by pressing the right button, the hydraulic telescopic rod 311 can be extended, and the slider 32 moves to the right under the drive of the hydraulic telescopic rod 311. The angle between the hydraulic telescopic rod 311 and the column 11 changes all the time in the working state. The change of the angle α between the hydraulic telescopic rod 311 and the column 11 is used to simulate the change of the angle of the wind turbine blade in actual production practice. Furthermore, since the mounting portion 13 is always in a fixed state, the change of the angle α between the hydraulic telescopic rod 311 and the column 11 is in a tangent function relationship with the displacement of the slider 32 along the track 2. Therefore, the angle value α between the hydraulic telescopic rod 311 and the column 11 can be obtained by the displacement value of the slider 32, thereby simulating the change of the blade angle in the wind turbine.

[0044] The control box 4 is also provided with a display screen 42 for displaying the displacement value of the slider 32. The control box 4 is electrically connected to the blade position sensor 5 located at the end of the track 2. A signal line is provided inside the track 2. When the magnetic sheet 321 on the slider 32 moves on the track 2, the magnetic field inside it will form an induced current on the conductor signal line. The blade position sensor 5 organizes the current into an electrical signal and transmits it to the control box 4, thereby reading the displacement value of the slider 32 on the control box 4. If the slider 32 actually reaches the left limiter 61 or the right limiter 62, the control box 4 display screen 42 should display two actual standard values. If there is a difference between the value on the display screen 42 and the standard value, it means that the slider 32 produces zero drift, which simulates the situation where the blades in the wind turbine are deviated and out of sync. At this time, the trainee adjusts the value on the control box 4 to achieve the correction of the deviation so that the value displayed on the display screen 42 of the control box 4 is consistent with the actual standard value.

[0045] To realize the start and stop control of the device, the device further includes a power module 7 and a control switch 8. For details, please refer to Figure 3 The power module 7 and the control switch 8 are arranged on the crossbeam 12. The power module 7, the control switch 8 and the simulated motion mechanism 3 are electrically connected. The power module 7 provides power for the device, and the control switch 8 is used to start and stop the device.

[0046] The present utility model also proposes a simulation maintenance learning platform, which includes a blade position display test device 1000. The specific structure of the blade position display test device 1000 refers to the above-mentioned embodiment. Since the present simulation maintenance learning platform adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0047] The above description is only a preferred embodiment of the present invention, and does 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 inventive 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 blade position display test device, characterized in that: include: Bracket; A track, wherein the track is arranged on the bracket, and the ends of the bracket close to the track are provided with limit sensors; A simulated motion mechanism, the simulated motion mechanism comprising a driving mechanism and a slider, the fixed end of the driving mechanism is arranged on the bracket, the free end of the driving mechanism is connected to the slider, and the slider is limited to the track; A control box, the control box is used to control the movement of the driving mechanism and adjust the displacement value of the slider; as well as A blade position sensor is arranged at one end of the track, and the blade position sensor is electrically connected to the control box.

2. The blade position display test device according to claim 1, characterized in that: The simulated motion mechanism further comprises a control device, which is disposed on the bracket and electrically connected to the driving mechanism.

3. The blade position display test device according to claim 2, characterized in that: The control box includes a control button and a display screen, wherein the button is used to adjust the movement of the driving mechanism, and the display screen is used to display the displacement value of the slider.

4. The blade position display test device according to any one of claims 1 to 3, characterized in that: The driving mechanism is a hydraulic telescopic rod, the bracket is provided with a mounting portion, and the fixed end of the hydraulic telescopic rod is arranged on the mounting portion.

5. The blade position display test device according to claim 4, characterized in that: The bracket includes two columns and a crossbeam connecting the two columns. The mounting portion is arranged on one of the columns, and the blade position sensor is arranged on the other column.

6. The blade position display test device according to claim 5, characterized in that: The hydraulic telescopic rod is rotatably arranged on the mounting portion, and the hydraulic telescopic rod is arranged at an angle to the cross beam.

7. The blade position display test device according to any one of claims 1 to 3, characterized in that: The slider comprises a magnetic sheet, the magnetic sheet is formed with a mounting hole, and the mounting hole is sleeved on the track.

8. The blade position display test device according to claim 5, characterized in that: The blade position display test device further comprises a power module and a control switch. The power module and the control switch are arranged on the crossbeam. The power module, the control switch and the simulated motion mechanism are all electrically connected.

9. The blade position display test device according to claim 5, characterized in that: The bracket also includes a mounting rod, which is arranged on the crossbeam, one end of the track is arranged on the mounting rod, and the other end is arranged on the blade position sensor.

10. A simulation maintenance learning platform, characterized in that: The device comprises a blade position display test device as claimed in any one of claims 1 to 9.

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