Structure for measuring profile tolerance of propeller
By using a combination of a granite base and a laser displacement sensor on the propeller, the problem of low efficiency and insufficient precision of traditional detection methods is solved, and efficient and high-precision propeller profile measurement is achieved, which is suitable for large-scale production and reduces the risk of product defects.
Patent Information
- Application Number
- CN202422946847.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Traditional propeller profile detection methods are inefficient and lack accuracy, making them unsuitable for large-scale production. This results in difficulty in controlling product quality and poses risks of crashes and vibrations.
A structure including a granite base, a measuring mechanism and a laser displacement sensor is adopted. The ball screw and linear guide are driven by a servo motor, and the laser displacement sensor is combined to efficiently scan the propeller surface to achieve high-precision measurement.
It improves the detection speed and accuracy, adapts to large-scale mass production, reduces the risk of product defects, and ensures the safety of propeller use.
Smart Images
Figure CN223361396U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of propeller profile measurement, in particular to a structure for measuring the propeller profile. Background Art
[0002] Traditional helicopter propellers are usually made of metal or composite materials through a series of processing. During the manufacturing process, it is impossible to ensure that the surface profile of each propeller is within the standard range. When the surface profile deviates too much from the standard, the lift of the propeller will be greatly affected. Traditional methods are not suitable for large-scale production due to efficiency and precision issues.
[0003] At present, due to the curved and irregular surface of propeller products, the detection methods on the market are too complicated, such as using a laser tracker. However, the preparation work during the scanning process using a laser tracker is too complicated and the measurement efficiency is low, which cannot be adapted to large-scale mass production detection. Therefore, the quality of large-scale mass production of such products cannot be effectively controlled. Therefore, a structure for measuring the propeller profile is proposed. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides a structure for measuring the profile of a propeller, which has the advantages of high measurement accuracy, easy use, and fast detection speed during large-scale mass production. It solves the problem that propeller products on the market cannot be detected with high efficiency and high precision, and avoids risk factors such as crashes and strong vibrations during actual use.
[0005] To achieve the above-mentioned object, the utility model provides the following technical solution: a structure for measuring the profile of a propeller, comprising a granite base, a leveling foot cup, a granite product supporting base, a first hexagon socket screw and a granite column, wherein a measuring mechanism is provided on the top of the granite base;
[0006] The measuring mechanism includes an expansion pin that is clamped on the top of the granite product bearing base, a tapered pull nail screw is movably installed inside the expansion pin, a linear guide is fixedly installed on the top of the granite base, a second hexagon socket screw is movably installed on the bottom of the linear guide, a slide is movably installed on the top of the linear guide, a third hexagon socket screw is movably installed inside the slide, a motor bearing seat is fixedly installed on the top of the granite base, a servo motor is fixedly installed on the left side of the motor bearing seat, a flexible coupling is fixedly installed on the output shaft of the servo motor, a ball screw is fixedly installed on the right outer wall of the flexible coupling, a double-row angular contact ball bearing is fixedly installed on the outer peripheral wall of the ball screw, and the double-row angular contact ball bearing is fixedly installed on the outer peripheral wall of the ball screw. A bearing end cover is movably installed on the top of the ball bearing, a fourth hexagon socket screw is movably installed on the outer wall of the servo motor, a bearing seat is fixedly installed inside the motor bearing seat, a deep groove ball bearing is fixedly installed on the outer peripheral wall of the bearing seat, a fifth hexagon socket screw is movably installed inside the motor bearing seat, a ball screw nut is threadedly connected to the outer peripheral wall of the ball screw, a screw nut seat is fixedly installed inside the motor bearing seat, three sixth hexagon socket screws are movably installed inside the screw nut seat, a seventh hexagon socket screw is movably installed inside the skateboard, a laser displacement sensor is movably installed on the top inner wall of the granite column, and an eighth hexagon socket screw is threadedly installed on the internal thread of the granite column.
[0007] Furthermore, the ball screw is fixedly mounted on the inner circumferential wall of the deep groove ball bearing, and the ball screw is fixedly mounted on the inner circumferential wall of the double row angular contact ball bearing.
[0008] Furthermore, a through hole is opened inside the linear guide rail, and the second hexagon socket screw slot is connected to the internal thread of the through hole and is connected to the top of the granite base and is adapted in size.
[0009] Furthermore, a limiting hole is provided inside the slide, and the third hexagon socket screw is slidably connected to the limiting hole and is threadedly connected to the inside of the linear guide rail and has a matching size.
[0010] Furthermore, a mounting hole is opened on the outer wall of the servo motor, and the fourth hexagon socket screw is slidably connected to the inner thread of the mounting hole and is connected to the left inner wall of the motor bearing seat and has a matching size.
[0011] Furthermore, a fixing hole is opened inside the bearing seat, and the fifth hexagon socket screw is slidably connected to the internal thread of the fixing hole and is connected to the top of the granite base and is adapted in size.
[0012] Furthermore, three connecting holes are opened inside the ball screw nut, and the sixth hexagon socket screw is slidably connected to the inner part of the connecting hole and is threadedly connected to the inner part of the screw nut seat and has a matching size.
[0013] Furthermore, a through hole is provided inside the skateboard, the seventh hexagon socket screw passes through the internal thread of the through hole and is connected to the inside of the screw nut seat and is adapted in size, a slot is provided on the top of the granite column, the laser displacement sensor is clamped in the inside of the slot and is adapted in size, a thread groove is provided on the top of the granite column, the eighth hexagon socket screw passes through the internal thread of the laser displacement sensor and is connected to the inside of the thread groove and is adapted in size.
[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0015] This structure for measuring propeller profile has high overall reliability. The materials used are produced using reasonable processes, resulting in low overall costs. Other testing methods often fail to detect or present significant challenges. This device offers high measurement accuracy and ease of use. This structure also boasts rapid testing speeds during mass production, demonstrating strong product adaptability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the utility model;
[0017] Figure 2 For this utility model Figure 1 The structural diagram on the right;
[0018] Figure 3 For this utility model Figure 1 A is an enlarged structural diagram;
[0019] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point B.
[0020] In the picture:
[0021] 1. Granite base; 2. Leveling feet; 3. Granite product bearing base; 4. First hexagon socket screw; 5. Product; 6. Expansion pin; 7. Tapered pull rivet screw; 8. Linear guide; 9. Second hexagon socket screw; 10. Slide plate; 11. Third hexagon socket screw; 12. Motor bearing seat; 13. Double-row angular contact ball bearing; 14. Bearing end cover; 15. Ball screw; 16. Flexible coupling; 17. Servo motor; 18. Fourth hexagon socket screw; 19. Bearing seat; 20. Deep groove ball bearing; 21. Fifth hexagon socket screw; 22. Ball screw nut; 23. Sixth hexagon socket screw; 24. Screw nut seat; 25. Seventh hexagon socket screw; 26. Laser displacement sensor; 27. Eighth hexagon socket screw; 28. Granite column. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] See also Figures 1 to 4 In this embodiment, a structure for measuring the profile of a propeller includes a granite base 1, a leveling foot cup 2, a granite product supporting base 3, a first hexagon socket screw 4 and a granite column 28. A measuring mechanism is provided on the top of the granite base 1.
[0024] The measuring mechanism includes an expansion pin 6 that is clamped on the top of the granite product supporting base 3, and a tapered pull rivet screw 7 is movably installed inside the expansion pin 6. A linear guide rail 8 is fixedly installed on the top of the granite base 1, and a second hexagon socket screw 9 is movably installed on the bottom of the linear guide rail 8. A through hole is opened inside the linear guide rail 8, and the second hexagon socket screw 9 is connected to the top of the granite base 1 through a slot in the through hole and is threaded to the top of the granite base 1 and is of a matching size.
[0025] A slide plate 10 is movably installed on the top of the linear guide rail 8, and a third hexagon socket screw 11 is movably installed inside the slide plate 10. A limiting hole is opened inside the slide plate 10, and the third hexagon socket screw 11 is slidably connected to the internal thread of the limiting hole and is connected to the inside of the linear guide rail 8 and is adapted in size.
[0026] A motor bearing seat 12 is fixedly installed on the top of the granite base 1, a servo motor 17 is fixedly installed on the left side of the motor bearing seat 12, a flexible coupling 16 is fixedly installed on the output shaft of the servo motor 17, a ball screw 15 is fixedly installed on the right outer wall of the flexible coupling 16, a double-row angular contact ball bearing 13 is fixedly installed on the outer peripheral wall of the ball screw 15, a bearing end cover 14 is movably installed on the top of the double-row angular contact ball bearing 13, a fourth hexagon socket screw 18 is movably installed on the outer wall of the servo motor 17, a mounting hole is opened on the outer wall of the servo motor 17, the fourth hexagon socket screw 18 is slidably connected to the internal thread of the mounting hole and is connected to the left inner wall of the motor bearing seat 12 and is adapted in size.
[0027] A bearing seat 19 is fixedly installed inside the motor bearing seat 12, a deep groove ball bearing 20 is fixedly installed on the outer peripheral wall of the bearing seat 19, the ball screw 15 is fixedly installed on the inner peripheral wall of the deep groove ball bearing 20, and the ball screw 15 is fixedly installed on the inner peripheral wall of the double row angular contact ball bearing 13.
[0028] A fifth hexagon socket screw 21 is movably installed inside the motor bearing seat 12, and a ball screw nut 22 is threadedly connected to the outer wall of the ball screw 15. A screw nut seat 24 is fixedly installed inside the motor bearing seat 12. Three connecting holes are opened inside the ball screw nut 22, and the sixth hexagon socket screw 23 is slidably connected to the internal connection hole and is threadedly connected to the inside of the screw nut seat 24 and is of a matching size.
[0029] Three sixth hexagon socket screws 23 are movably installed inside the screw nut seat 24, and a seventh hexagon socket screw 25 is movably installed inside the skateboard 10. A laser displacement sensor 26 is movably installed on the inner wall of the top of the granite column 28, and an eighth hexagon socket screw 27 is installed on the internal thread of the granite column 28. A through hole is provided inside the skateboard 10, and the seventh hexagon socket screw 25 passes through the internal thread of the through hole and is connected to the inside of the screw nut seat 24 and is adapted in size. A slot is provided on the top of the granite column 28, and the laser displacement sensor 26 is clamped in the inside of the slot and is adapted in size. A threaded groove is provided on the top of the granite column 28, and the eighth hexagon socket screw 27 passes through the internal thread of the laser displacement sensor 26 and is connected to the inside of the threaded groove and is adapted in size.
[0030] In this embodiment, the laser displacement sensor 26 is a device that uses laser to scan the surface of an object and obtains the shape and distance of the object by measuring the laser reflection and scattering. It is composed of a laser, a line laser, an optical system, an image sensor and a computer. The line laser emits laser light, which is focused into a thin beam through the optical system and irradiated onto the surface of the object. The laser scans the surface of the object at a high speed. At the same time, the image sensor records the information of laser reflection and scattering. The computer calculates the shape and distance of the object surface by analyzing this information. The function of the structure here is to scan the surface of the object to be measured, and the contour line of the surface of the object to be measured is output through the scanned numerical value for comparison and calculation of the contour degree.
[0031] In this embodiment, a product 5 is movably mounted on the top of the granite product supporting base 3 , and the product 5 is sleeved on the outer wall of the expansion pin 6 . The product 5 is fixed after expansion by a tapered pull rivet screw 7 .
[0032] The working principle of the above embodiment is:
[0033] First, the entire structure of the granite column 28 is moved to the far right by operating the computer. The product 5 is connected and fixed to the top of the granite product supporting base 3 by the expansion pin 6. Then, the granite column 28 is moved to the left by operating the computer to the position where the surface contour needs to be measured. Then, the upper and lower groups of laser displacement sensors 26 are read by operating the computer. The laser displacement sensor 26 drives the entire group of mechanisms to move left and right through the servo motor 17. When the entire group of mechanisms reaches the specified position, the computer software sends a signal to the laser displacement sensor 26 to make it take a value on the surface of the product 5. The value read by the laser displacement sensor 26 is subjected to certain calculations. The equipment automatically processes the data in the computer software to obtain the measurement result. After the measurement is completed, the software outputs the contour of the upper and lower surfaces of the product 5.
[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A structure for measuring the profile of a propeller, comprising a granite base (1), a leveling foot cup (2), a granite product bearing base (3), a first hexagon socket screw (4) and a granite column (28), characterized in that: A measuring mechanism is provided on the top of the granite base (1); The measuring mechanism includes an expansion pin (6) clamped on the top of the granite product supporting base (3), a tapered pull nail screw (7) is movably installed inside the expansion pin (6), a linear guide rail (8) is fixedly installed on the top of the granite base (1), a second hexagon socket screw (9) is movably installed on the bottom of the linear guide rail (8), a slide plate (10) is movably installed on the top of the linear guide rail (8), a third hexagon socket screw (11) is movably installed inside the slide plate (10), a motor bearing seat (12) is fixedly installed on the top of the granite base (1), a servo motor (17) is fixedly installed on the left side of the motor bearing seat (12), a flexible coupling (16) is fixedly installed on the output shaft of the servo motor (17), a ball screw (15) is fixedly installed on the right outer wall of the flexible coupling (16), a double-row angular contact ball bearing (13) is fixedly installed on the outer peripheral wall of the ball screw (15), and the double-row angular contact ball bearing ( 13) is movably mounted with a bearing end cover (14), the outer wall of the servo motor (17) is movably mounted with a fourth hexagon socket screw (18), the inner part of the motor bearing seat (12) is fixedly mounted with a bearing seat (19), the outer peripheral wall of the bearing seat (19) is fixedly mounted with a deep groove ball bearing (20), the inner part of the motor bearing seat (12) is movably mounted with a fifth hexagon socket screw (21), the outer peripheral wall of the ball screw (15) is threadedly connected with a ball screw nut (22), the inner part of the motor bearing seat (12) is fixedly mounted with a screw nut seat (24), the inner part of the screw nut seat (24) is movably mounted with three sixth hexagon socket screws (23), the inner part of the slide plate (10) is movably mounted with a seventh hexagon socket screw (25), the inner wall of the top of the granite column (28) is movably mounted with a laser displacement sensor (26), and the inner thread of the granite column (28) is threadedly mounted with an eighth hexagon socket screw (27).
2. The structure for measuring propeller profile according to claim 1, characterized in that: The ball screw (15) is fixedly mounted on the inner peripheral wall of the deep groove ball bearing (20), and the ball screw (15) is fixedly mounted on the inner peripheral wall of the double row angular contact ball bearing (13).
3. The structure for measuring propeller profile according to claim 1, characterized in that: The linear guide rail (8) is provided with a through hole inside, and the second hexagon socket screw (9) is connected to the inner thread of the through hole and connected to the top of the granite base (1) with a size that matches the second hexagon socket screw (9).
4. The structure for measuring propeller profile according to claim 1, characterized in that: A limiting hole is provided inside the slide plate (10), and the third hexagon socket screw (11) is slidably connected to the limiting hole and is threadedly connected to the inside of the linear guide rail (8) and has a size that matches the limiting hole.
5. The structure for measuring propeller profile according to claim 1, characterized in that: The outer wall of the servo motor (17) is provided with a mounting hole, and the fourth hexagon socket screw (18) is slidably connected to the inner thread of the mounting hole and is connected to the left inner wall of the motor bearing seat (12) and has a matching size.
6. The structure for measuring propeller profile according to claim 1, characterized in that: A fixing hole is provided inside the bearing seat (19), and the fifth hexagon socket screw (21) is slidably connected to the inner thread of the fixing hole and is connected to the top of the granite base (1) and is of a matching size.
7. The structure for measuring propeller profile according to claim 1, characterized in that: The ball screw nut (22) is provided with three connection holes inside, and the sixth hexagon socket screw (23) is slidably connected to the inside of the connection hole and is threadedly connected to the inside of the screw nut seat (24) and has a matching size.
8. The structure for measuring propeller profile according to claim 1, characterized in that: The slide plate (10) is provided with a through hole inside, the seventh hexagon socket screw (25) passes through the through hole and is connected to the inside of the screw nut seat (24) with the same size, the top of the granite column (28) is provided with a slot, the laser displacement sensor (26) is connected to the inside of the slot and is of the same size, the top of the granite column (28) is provided with a threaded groove, the eighth hexagon socket screw (27) passes through the internal thread of the laser displacement sensor (26) and is connected to the inside of the threaded groove with the same size.