Sensor stability detection device

Abstract

The utility model provides a sensor stability detection device, including a support frame, a detection disk, a rotation drive component, a sensor bracket and a light shield. The detection disk is provided with a plurality of detection blocks of alternating black and white, and is driven to rotate by the rotation drive component. When in use, the PCB board to be detected and the photoelectric sensor are installed on the sensor bracket, and the light shield is covered. The detection disk is driven to rotate at a certain speed by the rotation drive component, and the photoelectric sensor can determine the position and speed of the detection disk by detecting the boundary of black and white paint. The utility model can make the photoelectric sensor generate a sensing signal by setting a black and white detection area on the detection disk. During detection, the light shield simulates the low light environment in the running state, ensuring that the test of the photoelectric sensor can be carried out in a simulation environment, thereby verifying its performance and providing a reliable guarantee for practical application.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensor testing, and in particular relates to a sensor stability detection device. Background Art

[0002] Infrared photoelectric sensors can be used to monitor the rotation speed of rotating parts such as flywheel rotors, so that users can clearly understand the operating status of the equipment. For high-speed rotating flywheel rotors, the speed is relatively high, reaching tens of thousands of revolutions per minute, and the edge line speed can be above 600m / s, which places high demands on the stability of sensor performance. Infrared photoelectric sensors used on high-speed flywheel rotors need to ensure that they can stably detect the speed when the flywheel rotor rotates at high speed.

[0003] In actual production, there are defective or defective sensors, and their stability fluctuates. Only when the sensor is installed inside the flywheel product and tested can we know whether it is qualified. Since the sensor is built into the flywheel product, it is very inconvenient to disassemble and replace it, which adds an extra burden of maintenance and replacement. Therefore, it is necessary to design a detection device that can test the performance of the sensor before installation and eliminate defective products. Utility Model Content

[0004] The utility model provides a sensor stability detection device, which can detect and test the performance of the sensor before installation.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a sensor stability detection device, comprising:

[0006] Support frame;

[0007] A detection plate, arranged on the support frame, the detection plate having an annular detection area, the detection area being equally divided into a plurality of detection blocks along its circumference, the detection blocks being alternately arranged in black and white;

[0008] A rotation drive assembly, provided on the support frame, for driving the detection disk to rotate around a vertical axis;

[0009] A sensor bracket is disposed above the detection plate, the sensor bracket having a receiving groove penetrating vertically, the receiving groove corresponding to the detection area vertically; and

[0010] A light shield is arranged outside the detection plate and the sensor bracket.

[0011] In a possible implementation, the support frame includes:

[0012] Base plate;

[0013] A plurality of columns are respectively arranged on the bottom plate; and

[0014] A top plate is arranged on the top of the column, the detection disk and the sensor bracket are respectively arranged on the top plate, and the light shield is arranged on the top plate.

[0015] In a possible implementation, a base is provided at the bottom of the detection plate, the base is rotatably matched with the top plate, and the output end of the rotation drive assembly is connected to the base.

[0016] In a possible implementation manner, a bearing is provided between the base and the top plate.

[0017] In a possible implementation, the rotation drive assembly includes:

[0018] A driving motor is arranged on the supporting frame; and

[0019] A coupling is connected to the driving motor and the base.

[0020] In a possible implementation, a motor bracket is connected between the top plate and the bottom plate, and the drive motor is disposed on the motor bracket.

[0021] In a possible implementation, the sensor bracket includes:

[0022] A vertical pole, arranged on the support frame;

[0023] A cross bar connected to the upper end of the vertical bar; and

[0024] A fixing plate is connected to the cross bar, the fixing plate is located above the detection plate and is provided with the accommodating groove.

[0025] In a possible implementation, a mounting groove is provided at the upper end of the vertical rod, the mounting groove extends in a vertical direction, and one end of the cross rod is movably disposed in the mounting groove.

[0026] In a possible implementation manner, the fixing plate is provided with a plurality of the accommodating grooves at intervals.

[0027] In a possible implementation manner, a plurality of sensor brackets are provided at intervals along the circumference of the detection disk.

[0028] In a possible implementation, the light shield includes:

[0029] A plurality of side panels are arranged around the outer circumference of the detection plate; and

[0030] A cover plate is arranged above the plurality of side plates.

[0031] Compared with the prior art, the sensor stability detection device provided by the utility model has the following beneficial effects:

[0032] The sensor stability detection device provided by the utility model includes a support frame, a detection disk, a rotation drive component, a sensor bracket and a light shield. The detection disk is provided with a plurality of detection blocks which are alternately black and white, and is driven to rotate by the rotation drive component. When in use, the PCB board to be detected and the photoelectric sensor are installed on the sensor bracket, and the light shield is covered. The detection disk is driven to rotate at a certain speed by the rotation drive component. The photoelectric sensor can determine the position and rotation speed of the detection disk by detecting the boundary between black and white paint. By evaluating the detection signal of the photoelectric sensor, its stability when testing high-speed rotating parts can be known.

[0033] The utility model can make the photoelectric sensor generate a sensing signal by arranging a black and white detection area on the detection disk. During detection, the light shield simulates the low-light environment in the operating state, ensuring that the test of the photoelectric sensor can be carried out in a simulated environment, thereby verifying its performance and providing a reliable guarantee for practical application. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of the explosion structure of a sensor stability detection device provided in one embodiment of the utility model;

[0035] Figure 2 A schematic diagram of the structure of a sensor stability detection device provided in one embodiment of the utility model;

[0036] Figure 3 A schematic diagram of an explosion structure of a sensor stability detection device provided by another embodiment of the utility model;

[0037] Figure 4 An internal cross-sectional view of a sensor stability detection device provided in another embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. Sensor stability detection device;

[0040] 10. Support frame; 11. Bottom plate; 12. Column; 13. Top plate; 14. Motor bracket;

[0041] 20. Detection plate; 21. Detection block; 22. Base; 23. Bearing;

[0042] 30. Rotation drive assembly; 31. Drive motor; 32. Coupling;

[0043] 40. sensor bracket; 41. vertical pole; 411. mounting groove; 42. horizontal rod; 43. fixing plate; 431. receiving groove;

[0044] 50. sunshade; 51. side panel; 52. cover plate;

[0045] 2. PCB board and photoelectric sensor. DETAILED DESCRIPTION

[0046] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0047] It should be noted that when an element is referred to as being "fixed to", "fixed" or "fixedly disposed" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" or "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "set to" or "disposed on" another element, it may be directly on the other element or there may be a central element. "Multiple" refers to two or more quantities. "At least one" refers to one or more quantities. "Several" refers to one or more quantities.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0049] Please also read Figures 1 to 4 , the sensor stability detection device 1 provided in an embodiment of the utility model is described below.

[0050] See also Figure 1 , Figure 2 and Figure 4 The embodiment of the utility model provides a sensor stability detection device 1, including a support frame 10, a detection disk 20, a rotation drive component 30, a sensor bracket 40 and a light shield 50. The detection disk 20 is arranged on the support frame 10, and the detection disk 20 has an annular detection area. The detection area is equally divided into a plurality of detection blocks 21 along its own circumference. The detection blocks 21 are arranged alternately in black and white, which can be realized by stickers or spray paint. The rotation drive component 30 is arranged on the support frame 10, and is used to drive the detection disk 20 to rotate around the vertical axis. The specific rotation speed is set according to actual test needs, and can be from hundreds to tens of thousands of revolutions. The sensor bracket 40 is arranged above the detection disk 20, and the sensor bracket 40 has a receiving groove 431 that runs through it from top to bottom, and the receiving groove 431 corresponds to the detection area from top to bottom; the light shield 50 is arranged outside the detection disk 20 and the sensor bracket 40.

[0051] Compared with the prior art, the sensor stability detection device 1 provided in the embodiment of the utility model has the following beneficial effects:

[0052] The sensor stability detection device 1 provided by the embodiment of the utility model includes a support frame 10, a detection disk 20, a rotation drive component 30, a sensor bracket 40 and a light shield 50. The detection disk 20 is provided with a plurality of detection blocks 21 alternating between black and white, and is driven to rotate by the rotation drive component 30. When in use, the PCB board to be detected and the photoelectric sensor 2 are installed on the sensor bracket 40, and the light shield 50 is covered. The detection disk 20 is driven to rotate at a certain speed by the rotation drive component. The photoelectric sensor can determine the position and rotation speed of the detection disk 20 by detecting the boundary between black and white paint. By evaluating the detection signal of the photoelectric sensor, its stability when testing high-speed rotating parts can be known.

[0053] The embodiment of the utility model can enable the photoelectric sensor to generate a sensing signal by setting a black and white detection area on the detection disk 20. During detection, the low-light environment under the operating state is simulated by the light shield 50, ensuring that the test of the photoelectric sensor can be carried out in a simulated environment, thereby verifying its performance and providing a reliable guarantee for practical application.

[0054] In the embodiment of the utility model, the support frame 10 is used to provide support for various components installed thereon. The support frame 10 includes but is not limited to various metal frames, and the specific shape and structure of the support frame 10 are not limited. For example, the support frame 10 can be obtained by welding steel and plates, or the support frame 10 can also be obtained by integral casting of a model. The shape of the support frame 10 can be square or cylindrical, and can provide stable support to ensure the smooth progress of the experiment.

[0055] The detection disk 20 can be a disk or a ring, and its function is to form an annular detection area, which is divided into detection blocks 21 of alternating black and white. The black and white colors can be covered on the surface of the workpiece by artificially spraying black / white paint. The sensor determines the specific position and rotation speed of the detection disk 20 by identifying the difference between the black and white paints. The position of the black and white detection blocks 21 corresponds to the rotor to simulate the actual rotor operation as much as possible.

[0056] The rotary drive assembly 30 can be a power device such as a motor or a hydraulic rotary motor that can drive the detection disk 20 to rotate at a certain speed. The output speed of the rotary drive assembly 30 is adjustable. For example, during the test, the speed can be increased to 2000 revolutions and tested for one hour. If there is no problem with the sensor output signal, the PCB board can be sent to the workshop for installation and use, so that defective products can be eliminated and product quality can be ensured.

[0057] The sensor bracket 40 is used to install and fix the PCB board with the photoelectric sensor, so that the detection head of the photoelectric sensor corresponds to the detection area. When the detection disk 20 rotates, the number of times the photoelectric sensor passes the detection block 21 per unit time can be used to know the rotation speed. There is no restriction on the specific shape and structure of the sensor bracket 40, as long as the PCB board can be fixed above the detection disk 20. The PCB board and the sensor bracket 40 can be detachably connected by screws, magnetic suction, etc., so as to facilitate installation and fixation before detection, and removal after detection.

[0058] The light shield 50 is arranged outside the detection plate 20 to provide a dark environment, simulate the actual operating environment of the photoelectric sensor, and ensure that the detection result is accurate and reliable. The light shield 50 can be made of metal plates, opaque plastics and other materials. Considering that the light shield 50 needs to be frequently removed and placed when testing sensors in large quantities, a switch door can be set on the light shield 50 to facilitate the removal and placement of the PCB board and the photoelectric sensor 2.

[0059] See also Figure 1 , Figure 2 and Figure 3 In some possible embodiments, the support frame 10 includes a bottom plate 11, columns 12 and a top plate 13, and multiple columns 12 are respectively arranged on the bottom plate 11; the top plate 13 is arranged on the top of the columns 12, the detection disk 20 and the sensor bracket 40 are respectively arranged on the top plate 13, and the light shielding cover 50 is covered on the top plate 13.

[0060] In this embodiment, the support frame 10 is composed of a bottom plate 11, a column 12 and a top plate 13. A plurality of columns 12 are connected between the bottom plate 11 and the top plate 13. The columns 12 lift the top plate 13 to a certain height for easy operation by the experimenter. The bottom plate 11, the column 12 and the top plate 13 can be connected as a whole by welding or other means, and of course, they can also be detachably connected by fasteners such as screws. The light shield 50 is detachably arranged on the top plate 13.

[0061] See also Figure 4 In some possible embodiments, a base 22 is provided at the bottom of the detection disk 20, and the base 22 is rotatably matched with the top plate 13. The output end of the rotation drive assembly 30 is connected to the base 22, which can be connected by key connection, gear transmission, etc. The base 22 and the detection disk 20 can be detachably connected by screws, so that the detection disk 20 can be easily replaced after being damaged.

[0062] See also Figure 4 In some possible embodiments, a bearing 23 is provided between the base 22 and the top plate 13. The bearing 23 can be directly selected from existing ball bearings 23, tapered roller bearings 23, etc. on the market, and can be correctly installed according to the installation requirements.

[0063] See also Figure 4In some possible embodiments, the rotation drive assembly 30 includes a drive motor 31 and a coupling 32. The drive motor 31 is disposed on the support frame 10; the coupling 32 is connected to the drive motor 31 and the base 22, and the coupling 32 is used to transmit the power of the drive motor 31 to the base 22, thereby driving the rotating disk to rotate.

[0064] See also Figures 1 to 3 In some possible embodiments, a motor bracket 14 is connected between the top plate 13 and the bottom plate 11 , and the drive motor 31 is disposed on the motor bracket 14 . The motor bracket 14 may be a plate-shaped component or a component of other shapes to facilitate the installation and fixation of the drive motor 31 .

[0065] See also Figure 1 and Figure 3 In some possible embodiments, the sensor bracket 40 includes a vertical pole 41, a horizontal pole 42 and a fixing plate 43, the vertical pole 41 is arranged on the support frame 10; the horizontal pole 42 is connected to the upper end of the vertical pole 41; the fixing plate 43 is connected to the horizontal pole 42, the fixing plate 43 is located above the detection disk 20, and is provided with a receiving groove 431.

[0066] In this embodiment, the sensor bracket 40 includes a vertical rod 41, a horizontal rod 42 and a fixing plate 43. The vertical rod 41 is connected to the support frame 10, and one end of the horizontal rod 42 is connected to the vertical rod 41. When two vertical plates are provided, the two ends of the horizontal rod 42 are respectively connected to the top ends of the two vertical rods 41. The fixing plate 43 is provided on the horizontal rod 42, and a receiving groove 431 is provided on the fixing plate 43. The PCB board is fixed on the fixing plate 43 during testing, and the photoelectric sensor on the PCB board is received in the receiving groove 431, and the detection end faces downward.

[0067] See also Figure 1 and Figure 3 In some possible embodiments, the fixing plate 43 is provided with a plurality of accommodating grooves 431 at intervals. This structure is suitable for products in which a plurality of photoelectric sensors are provided at intervals on the PCB board. The plurality of photoelectric sensors are respectively located in different accommodating grooves 431 and do not interfere with or affect each other.

[0068] See also Figure 1 and Figure 3 In some possible embodiments, a mounting groove 411 is provided at the upper end of the vertical pole 41, and the mounting groove 411 is extended in the vertical direction. One end of the cross bar 42 is movably disposed in the mounting groove 411, and the cross bar 42 can adjust the height up and down along the mounting groove 411, driving the PCB board and the photoelectric sensor 2 to move up and down, so as to adjust the height of the photoelectric sensor from the detection plate 20 to be consistent with the actual installation height. After the position adjustment of the cross bar 42 is completed, the cross bar 42 can be fixed on the vertical pole 41 by means of screws, straps, buckles, etc.

[0069] See also Figure 3 In some possible embodiments, a plurality of sensor brackets 40 are provided at intervals along the circumference of the detection disk 20, so that a plurality of photoelectric sensors can be detected simultaneously, thereby improving the detection efficiency.

[0070] See also Figures 1 to 4 In some possible embodiments, the light shield 50 includes a plurality of side panels 51 and at least one cover plate 52. The plurality of side panels 51 are arranged around the outer periphery of the detection disk 20; the cover plate 52 is arranged on top of the plurality of side panels 51 to form a sealed and light-proof space.

[0071] It can be understood that the various parts in the above-mentioned embodiments can be freely combined or deleted to form different combination embodiments. The specific contents of each combination embodiment will not be repeated here. After this description, it can be considered that the utility model specification has recorded various combination embodiments and can support different combination embodiments.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sensor stability detection device, characterized in that: include: Support frame; A detection disk is arranged on the support frame, the detection disk has an annular detection area, the detection area is equally divided into a plurality of detection blocks along its circumference, and the detection blocks are alternately arranged in black and white; A rotation drive assembly, provided on the support frame, for driving the detection disk to rotate around a vertical axis; A sensor bracket is disposed above the detection plate, the sensor bracket having a receiving groove penetrating vertically, the receiving groove corresponding to the detection area vertically; and A light shield is arranged outside the detection plate and the sensor bracket.

2. The sensor stability detection device according to claim 1, characterized in that: The support frame comprises: Base plate; A plurality of columns are respectively arranged on the bottom plate; and A top plate is arranged on the top of the column, the detection disk and the sensor bracket are respectively arranged on the top plate, and the light shield is arranged on the top plate.

3. The sensor stability detection device according to claim 2, characterized in that: A base is provided at the bottom of the detection plate, the base is rotatably matched with the top plate, and the output end of the rotation drive assembly is connected to the base.

4. The sensor stability detection device according to claim 3, characterized in that: A bearing is provided between the base and the top plate.

5. The sensor stability detection device according to claim 3, characterized in that: The rotary drive assembly comprises: A driving motor is arranged on the supporting frame; and A coupling is connected to the driving motor and the base.

6. The sensor stability detection device according to claim 5, characterized in that: A motor bracket is connected between the top plate and the bottom plate, and the driving motor is arranged on the motor bracket.

7. The sensor stability detection device according to claim 1, characterized in that: The sensor bracket comprises: A vertical pole, arranged on the support frame; A cross bar connected to the upper end of the vertical bar; and A fixing plate is connected to the cross bar, the fixing plate is located above the detection plate and is provided with the accommodating groove.

8. The sensor stability detection device according to claim 7, characterized in that: The fixing plate is provided with a plurality of the accommodating grooves at intervals.

9. The sensor stability detection device according to claim 7, characterized in that: The upper end of the vertical rod is provided with a mounting groove, the mounting groove is extended in the vertical direction, and one end of the horizontal rod is movably arranged in the mounting groove.

10. The sensor stability detection device according to claim 1, characterized in that: A plurality of sensor brackets are arranged at intervals along the circumference of the detection disk.

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