Surface type detection device for reflecting surface of heliostat

Abstract

The invention discloses a heliostat reflecting surface profile detection device, belongs to the technical field of heliostat surface profile detection, and can solve the problems of low detection precision and low detection efficiency of an existing detection mode. The device comprises a transmission module used for transmitting a heliostat to be detected to a detection position; the supporting module is arranged below the detection position; the probe module is arranged on the supporting module; the supporting module is used for supporting the probe module and driving the probe module to move upwards to a preset height; the probe module is used for collecting displacement information when the probe module is in contact with a to-be-detected point on the reflecting surface of the to-be-detected heliostat; and the processing module is connected with the probe module and is used for determining a surface type detection result of the heliostat to be detected according to the displacement information. The method is used for detecting the surface type of the heliostat reflecting surface.

Description

Technical Field

[0001] The invention relates to a heliostat reflective surface shape detection device, belonging to the technical field of heliostat surface shape detection. Background Art

[0002] Heliostats are a key component of tower solar power generation technology, and the accuracy of their curvature is directly related to the efficiency of light collection. There are three existing methods for detecting the reflective surface of heliostats: the first is to detect heliostats using a laser beam deflection scanning method, but this method has low detection accuracy. The second is to detect heliostats using a secondary reflector surface quality detection method based on image recognition, but this method has low detection efficiency. The third is to detect heliostats based on a phase shift method, but this method is expensive and has low detection efficiency. Summary of the invention

[0003] The present invention provides a device for detecting the reflective surface shape of a heliostat, which can solve the problems of low detection accuracy and low detection efficiency in existing detection methods.

[0004] The present invention provides a device for detecting the reflective surface of a heliostat, the device comprising: A transport module, used for transporting the heliostat to be inspected to the inspection position; A supporting module, arranged below the detection position; A probe module is arranged on the support module; the support module is used to support the probe module and drive the probe module to move up to a preset height; the probe module is used to collect displacement information when it contacts the point to be measured on the reflective surface of the heliostat to be detected; A processing module is connected to the probe module and is used to determine a surface detection result of the heliostat to be detected according to the displacement information.

[0005] Optionally, the probe module includes a plurality of contact probes arranged in a row; and the device further includes: The horizontal driving module is arranged on the supporting module and connected to the probe module, and is used for driving the probe module to move horizontally, so that a plurality of contact probes are moved to the corresponding positions to be measured in sequence.

[0006] Optionally, the probe module further comprises a support rod, and a plurality of contact probes are arranged in a row on the support rod; The horizontal driving module comprises: Two slide rails are arranged in parallel on the support module; two ends of the support rod are respectively connected to the two slide rails; The first driving motor is used to drive the two slide rails to move, so as to drive the supporting rod to move.

[0007] Optionally, the support module includes: A hollow platform, two slide rails are respectively arranged on the inner walls of opposite sides of the hollow platform; A vertical driving unit is arranged below the hollow platform and is used for adjusting the height of the hollow platform.

[0008] Optionally, the vertical driving unit includes: Four retractable rods are respectively arranged under the four corners of the hollow platform; The second driving motor is used to drive the four telescopic rods to extend and retract.

[0009] Optionally, the contact head of the contact probe is spherical.

[0010] Optionally, a displacement sensor is integrated inside the contact probe.

[0011] Optionally, the processing module specifically includes: A fitting unit, configured to determine a fitting surface of the heliostat to be detected according to the displacement information; The detection unit is used to determine a surface shape detection result of the heliostat to be detected according to the fitted curved surface of the heliostat to be detected.

[0012] Optionally, the probe module includes 12 contact probes, and the reflective surface of the heliostat to be detected has 144 points to be tested. The beneficial effects that the present invention can produce include: The device for detecting the shape of the reflecting surface of a heliostat provided by the present invention collects displacement information of a probe module when the probe module contacts a point to be measured on the reflecting surface of the heliostat to be detected, performs surface fitting using the collected displacement information, and then obtains a shape detection result of the heliostat. This method improves the detection accuracy and detection speed of the heliostat surface detection and greatly reduces the detection cost.

[0013] The heliostat reflective surface shape detection device provided by the present invention can perform complete and accurate detection of the curved surface of the heliostat by using a spherical contact probe. When the spherical contact probe contacts the curved surface, it can accurately capture the slight changes of the curved surface, thereby improving the detection accuracy. Compared with the traditional detection method, the spherical contact probe can provide more detailed and accurate measurement data, ensure that the reflective surface of the heliostat meets the design requirements, and improve the reliability and accuracy of the overall detection.

[0014] The heliostat reflective surface shape detection device provided by the present invention uses a spherical contact probe to perform surface shape detection. The spherical contact probe can quickly and continuously measure multiple points to be measured, and obtain displacement information in real time through a high-precision displacement sensor. Compared with traditional detection methods, the spherical contact probe reduces detection steps and time, improves the overall efficiency of the production line, and ensures the rapid delivery and use of the heliostat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional structure of a heliostat reflective surface shape detection device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the planar structure of a device for detecting the reflective surface shape of a heliostat provided in an embodiment of the present invention. Reference numerals: 1. Contact probe; 2. Heliostat; 3. Transmission module; 4. Retractable rod; 5. Slide rail; 6. First drive motor; 7. Second drive motor; 8. Single chip microcomputer; 9. Communication module; 10. Computer; 11. Hollow platform; 12. Support rod. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0017] The embodiment of the present invention provides a device for detecting the reflective surface of a heliostat. Figure 1 and Figure 2 As shown, the device comprises: The transport module 3 is used to transport the heliostat 2 to be inspected to the inspection position.

[0018] The transmission module 3 transmits the heliostat 2 to be inspected after production to the inspection position. The embodiment of the present invention does not limit the specific structure of the transmission module 3, as long as it can transmit the heliostat 2 to be inspected to the inspection position. In practical applications, the transmission module 3 can use a structure such as a conveyor belt.

[0019] The supporting module is arranged below the detection position.

[0020] The probe module is arranged on the support module; the support module is used to support the probe module and drive the probe module to move up to a preset height; the probe module is used to collect displacement information when it contacts the point to be measured on the reflective surface of the heliostat 2 to be detected.

[0021] In order to better simulate the reflective surface of the heliostat 2 to be detected, multiple points to be tested on the heliostat 2 can be pre-set. In practical applications, multiple points to be tested can be set in an array arrangement. For example, 12 rows and 12 columns with a total of 144 points to be tested can be set. In this way, the three-dimensional position data of all the points to be tested can be obtained through the position information of the probe module itself and the displacement information when it contacts the points to be tested on the reflective surface of the heliostat 2 to be detected, and then the reflective surface of the heliostat 2 to be detected can be simulated through the three-dimensional position data of all the points to be tested, and then the surface shape of the heliostat 2 to be detected is judged to be qualified according to the simulated curved surface.

[0022] In an embodiment of the present invention, the probe module includes a plurality of contact probes 1 arranged in a row; the number of contact probes 1 arranged corresponds to the number and position of the points to be measured in a row of points to be measured. For example, the probe module includes 12 contact probes 1, and there are 144 points to be measured on the reflective surface of the heliostat 2 to be detected.

[0023] The contact probe 1 has a displacement sensor integrated therein, and the displacement sensor can measure the displacement of the probe contact head.

[0024] Preferably, the contact head of the contact probe 1 is spherical, so as to avoid damage to the reflective surface of the heliostat 2.

[0025] The device also includes: The horizontal driving module is arranged on the supporting module and connected to the probe module, and is used for driving the probe module to move horizontally, so that the multiple contact probes 1 are moved to the corresponding positions to be tested in sequence.

[0026] Furthermore, the probe module further comprises a support rod 12, and a plurality of contact probes 1 are arranged in a row on the support rod 12; the horizontal driving module comprises: Two slide rails 5 are arranged in parallel on the support module; both ends of the support rod 12 are connected to the two slide rails 5 respectively; The first driving motor 6 is used to drive the two slide rails 5 to move, thereby driving the supporting rod 12 to move.

[0027] The slide rail 5 can drive the support rod 12 and the contact probe 1 fixed thereon to move horizontally.

[0028] The first driving motor 6 may be a servo motor, which is used to provide power to the slide rail 5 and control the slide rail 5 to stop at a specified position.

[0029] In the present invention, the support module comprises: A hollow platform 11, two slide rails 5 are respectively arranged on the inner walls of opposite sides of the hollow platform 11; The vertical driving unit is arranged below the hollow platform 11 and is used for adjusting the height of the hollow platform 11 .

[0030] The hollow platform 11 provides support for the slide rail 5 .

[0031] Furthermore, the vertical drive unit comprises: Four retractable rods 4 are respectively arranged under the four corners of the hollow platform 11; The second driving motor 7 is used to drive the four telescopic rods 4 to extend and retract.

[0032] The retractable rod 4 is used to lift and lower the hollow platform 11 so that the contact probe 1 can better contact the heliostat 2 .

[0033] The second driving motor 7 may be a servo motor, which provides power to the telescopic rod 4 and stops when it contacts the falling edge of the reflecting surface of the heliostat 2 .

[0034] The processing module is connected to the probe module and is used to determine the surface detection result of the heliostat 2 to be detected according to the displacement information.

[0035] Specifically, the processing module includes: A fitting unit, used for determining a fitting surface of the heliostat 2 to be detected according to the displacement information; The detection unit is used to determine a surface detection result of the heliostat 2 to be detected according to the fitted curved surface of the heliostat 2 to be detected.

[0036] In the present invention, the processing module may be a computer 10 , which is used to analyze the displacement information of the probe module so as to fit the reflective surface profile of the heliostat 2 .

[0037] In practical applications, the device further includes a single chip microcomputer 8 connected between the probe module and the processing module. The single chip microcomputer 8 is used to obtain displacement information collected by the contact probe 1 and transmit the displacement information to the processing module through the communication module 9.

[0038] The communication module 9 may use 5G communication technology to remotely transmit the displacement information acquired in the single chip microcomputer 8 to the computer 10 .

[0039] The working process of the device for detecting the reflective surface of the heliostat 2 is described in detail below.

[0040] First, the detection device is placed behind the heliostat 2 production line. After the heliostat 2 is manufactured, the heliostat 2 is brought to the detection position by the conveying module 3. After the position of the heliostat 2 is fixed, the second driving motor 7 drives the telescopic rod 4 to rise so that the hollow platform 11 above the telescopic rod 4 just touches the curved falling edge of the heliostat 2 to ensure the accuracy of the detection. Twelve spherical contact probes 1 are arranged on the support rod 12 on the slide rail 5. These twelve spherical contact probes 1 are arranged according to the set gap to determine the data information in the Y direction of the point to be measured. When the spherical contact probe 1 contacts the reflective surface of the heliostat 2, it will produce displacement according to the shape of the reflective surface. The internal high-precision displacement sensor can accurately measure the displacement change of the probe, and then determine the data information in the Z direction of the point to be measured. The first driving motor 6 drives the slide rail 5 to move twelve times according to a specific position on the hollow platform 11, and obtains the information in the X direction of the 144 points to be measured measured by the twelve spherical contact probes 1. After one test, the three-dimensional position data of 144 test points can be obtained, and the obtained data is transmitted to the computer 10 through the 5G communication module 9 of the single-chip computer 8. The computer 10 obtains the reflective surface shape of the heliostat 2 under test through the quadratic surface fitting algorithm. If it meets the standard, the heliostat 2 under test is shipped out of the factory for use, otherwise it is returned for correction until the test is qualified.

[0041] After the detection starts, the present invention does not require multiple steps and can complete the detection of the reflective surface of the heliostat 2 in a short time.

[0042] The present invention uses a spherical contact probe 1 to detect the shape of the reflective surface, and the detection accuracy is very high.

[0043] The spherical contact probe 1 used in the present invention is reasonably priced, stable and highly maintainable.

[0044] The present invention applies a spherical contact probe 1 to the detection of the reflective surface shape of a heliostat 2. After the displacement information is obtained by the spherical contact probe 1, it is directly transmitted to a computer 10 through a 5G communication module 9 on a single-chip microcomputer 8, thereby greatly improving the detection efficiency.

[0045] The present invention uses an independently innovatively designed detection architecture, which can quickly interact with the heliostat 2 production line, thereby shortening the overall operation time of the entire production line and the detection device.

[0046] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A heliostat reflective surface shape detection device, characterized in that: The device comprises: A transport module, used for transporting the heliostat to be inspected to the inspection position; A supporting module, arranged below the detection position; A probe module is arranged on the support module; the support module is used to support the probe module and drive the probe module to move up to a preset height; the probe module is used to collect displacement information when it contacts the point to be measured on the reflective surface of the heliostat to be detected; A processing module is connected to the probe module and is used to determine a surface detection result of the heliostat to be detected according to the displacement information.

2. The device according to claim 1, characterized in that The probe module includes a plurality of contact probes arranged in a row; the device also includes: The horizontal driving module is arranged on the supporting module and connected to the probe module, and is used for driving the probe module to move horizontally, so that a plurality of contact probes are moved to the corresponding positions to be measured in sequence.

3. The device according to claim 2, characterized in that The probe module further comprises a support rod, and a plurality of contact probes are arranged in a row on the support rod; The horizontal driving module comprises: Two slide rails are arranged in parallel on the support module; two ends of the support rod are respectively connected to the two slide rails; The first driving motor is used to drive the two slide rails to move, so as to drive the supporting rod to move.

4. The device according to claim 3, characterized in that The support module comprises: A hollow platform, two slide rails are respectively arranged on the inner walls of opposite sides of the hollow platform; A vertical driving unit is arranged below the hollow platform and is used for adjusting the height of the hollow platform.

5. The device according to claim 4, characterized in that The vertical driving unit comprises: Four retractable rods are respectively arranged under the four corners of the hollow platform; The second driving motor is used to drive the four telescopic rods to extend and retract.

6. The device according to claim 2, characterized in that The contact head of the contact probe is spherical.

7. The device according to claim 2, characterized in that A displacement sensor is integrated inside the contact probe.

8. The device according to claim 1, characterized in that The processing module specifically includes: A fitting unit, configured to determine a fitting surface of the heliostat to be detected according to the displacement information; The detection unit is used to determine a surface shape detection result of the heliostat to be detected according to the fitted curved surface of the heliostat to be detected.

9. The device according to claim 2, characterized in that The probe module includes 12 contact probes, and the reflective surface of the heliostat to be detected has 144 points to be tested.

Images