Non-contact magnetic type traceless rain erosion test piece locking mechanism

Abstract

The invention discloses a non-contact magnetic traceless rain erosion test piece locking mechanism which comprises a loading table, a test piece, a supporting block, a locking piece and an unlocking piece, a mounting notch is formed in a to-be-tested part of the loading table, the test piece is mounted on the surface of the supporting block, the locking piece is mounted in the mounting notch, and the locking piece is locked in the mounting notch when the locking piece is locked. The supporting block is inserted into the mounting notch, the locking piece locks and fixes the supporting block, and the test piece on the surface of the supporting block is flush with each surface of the loading table to form a surface traceless structure; during unlocking, the loading table is sleeved with the unlocking piece, and the unlocking piece adsorbs the locking piece so as to relieve the locking fixing force on the supporting block. The device has the advantages of simple and convenient installation and disassembly and stable and accurate test.

Description

Technical Field

[0001] The invention relates to the technical field of high-speed rotating table equipment simulated rain erosion experimental testing, and in particular to a non-contact magnetic attraction type traceless rain erosion specimen locking mechanism. Background Art

[0002] Rain erosion refers to the process in which raindrops repeatedly impact the surface of a material, gradually destroying it. This phenomenon occurs when large-scale high-speed equipment is running in a rainy environment, such as the leading edge of wind turbine blades, tunnel ventilation fan blades, aircraft engine fan blades, aircraft skins, radar covers, etc. The damage caused by rain erosion often causes material damage, reduces component performance and structural strength, and affects equipment operation efficiency and safety.

[0003] Materials need to be tested for rain erosion to evaluate their anti-rain erosion performance and assess the damage during operation. At present, high-speed rotating table equipment is mostly used to simulate rain erosion test. During the test, the protective material test sample needs to be locked and fixed on the rotating table test blade. However, the current locking devices are all fastened with bolts. When in use, installation and disassembly are troublesome, time-consuming and labor-intensive, and the operation is very inconvenient. The huge centrifugal force of the rotating structure is easy to induce failure risks, and there are gaps or defects on the blade surface after installation, which affects the aerodynamic performance of the blade during high-speed rotation, affecting the blade rotation stability and test results. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a non-contact magnetic type traceless rain erosion specimen locking mechanism which is simple and convenient to install and disassemble and has firm and reliable installation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A contactless magnetically-attractive traceless rain erosion specimen locking mechanism comprises a loading platform, a test specimen, a support block, a locking member and an unlocking member, wherein the loading platform is provided with an installation notch at a part to be tested, the test specimen is mounted on the surface of the support block, and the locking member is mounted in the installation notch; when locked, the support block is inserted into the installation notch, and the locking member locks and fixes the support block, and the test specimen on the surface of the support block is flush with the surfaces of the loading platform to form a surface traceless structure; when unlocked, the unlocking member is fitted onto the loading platform and adsorbs the locking member to release the locking force on the support block.

[0007] As a further improvement of the above technical solution:

[0008] The loading platform is provided with an installation groove on the side wall in the installation notch, and the locking piece is installed in the installation groove. The side wall of the supporting block is provided with a locking groove. When locking, the locking piece naturally extends into the locking groove to lock and fix the supporting block; when unlocking, the unlocking piece is sleeved on the loading platform and adsorbs the locking piece to exit the locking groove to release the locking force on the supporting block.

[0009] The locking member includes a locking spring and a locking block, and the locking block is installed in the installation groove through the locking spring. When locking, the locking block is naturally extended into the locking groove by the action of the locking spring to lock and fix the supporting block; when unlocking, the unlocking member is sleeved on the loading platform and adsorbs the locking block to overcome the action of the locking spring and exit the locking groove to release the locking force on the supporting block.

[0010] The unlocking member comprises a positioning sleeve and a magnet arranged on the positioning sleeve. When unlocking, the positioning sleeve is fitted and positioned on the loading platform, and the position of the magnet corresponds to that of the locking block.

[0011] The positioning sleeve comprises a U-shaped sleeve and side suction edges arranged on both sides of the U-shaped sleeve, and the magnets are distributed on the side suction edges on both sides.

[0012] The support block comprises a support platform and an insertion platform arranged at the bottom of the support platform, the test specimen is wrapped and fixed on the surface of the support platform, and the locking groove is arranged on the side wall of the insertion platform.

[0013] Positioning notches are arranged at both ends of the insertion platform, and positioning steps cooperating with the positioning notches for positioning are also arranged in the installation notch.

[0014] A buffer spring is installed at the bottom of the installation notch, a support plate is installed on the buffer spring, and the bottom of the insertion platform is against the support plate.

[0015] The bottom of the test specimen is bent with an edge, and the edge is fastened to the bottom of the support platform by bolts.

[0016] The bottom of the test specimen is bent to form an edge, a slot is provided between the bottom of the support platform and the insertion platform, and the edge is inserted into the slot.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The non-contact magnetic suction type traceless rain erosion specimen locking mechanism of the present invention, when conducting a rain erosion test, first install the test specimen on the surface of the support block, then insert the support block into the installation notch on the loading platform, and lock and fix the support block by the locking member. When unlocking, the unlocking member is fitted on the loading platform to adsorb the locking member, so that the locking and fixing of the support block is released. The support block is connected to the loading platform by plug-in, and is locked and fixed by the locking member during the plug-in process. When unlocking, the locking member is adsorbed and unlocked by the unlocking member. The installation and disassembly are simple and convenient, and the operation is time-saving and labor-saving. When locking, the support block is tightly connected in the installation notch, and the test specimen can be flush with the surfaces of the loading platform to form a traceless structure, eliminating the gap after the test specimen is installed, and ensuring stable testing and accurate test results. . BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram (stereoscopic diagram) of the overall structure of Example 1 of the present invention.

[0020] Figure 2 It is a schematic diagram of the overall structure of Example 1 of the present invention (being tried).

[0021] Figure 3 yes Figure 2 Schematic diagram of the AA section.

[0022] Figure 4 It is a schematic diagram (stereoscopic diagram) of the loading platform structure of the present invention.

[0023] Figure 5 It is a cross-sectional view of the loading platform of the present invention.

[0024] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0025] Figure 7 It is a schematic diagram of the loading platform structure of the present invention (being tried).

[0026] Figure 8 yes Figure 7 Schematic diagram of the BB cross section.

[0027] Fig. 9 It is a schematic diagram (stereoscopic diagram) of the support block structure of Example 1 of the present invention.

[0028] Fig.10 It is a schematic diagram (side view) of the support block structure of Example 1 of the present invention.

[0029] Fig.11 It is a schematic diagram of the unlocking member structure of the present invention.

[0030] Fig.12 It is a schematic diagram of the support block structure of Example 2 of the present invention.

[0031] Fig.13 It is a schematic diagram of the support block structure of Example 3 of the present invention.

[0032] The symbols in the figure represent:

[0033] 1. Loading platform; 11. Installation notch; 111. Positioning step; 112. Buffer spring; 113. Support plate; 12. Installation slot; 2. Test specimen; 21. Edge wrapping; 3. Support block; 31. Locking slot; 32. Support platform; 33. Insertion platform; 331. Positioning notch; 34. Slot; 4. Locking piece; 41. Locking spring; 42. Locking block; 5. Unlocking piece; 51. Positioning sleeve; 511. U-shaped sleeve; 512. Side suction edge; 52. Magnet; 6. Bolt. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Embodiment 1:

[0036] like Figures 1 to 11 As shown, a first embodiment of the contactless magnetic traceless rain erosion specimen locking mechanism of the present invention comprises a loading platform 1, a test specimen 2, a support block 3, a locking member 4 and an unlocking member 5. The loading platform 1 is provided with an installation notch 11 at the part to be tested, the test specimen 2 is mounted on the surface of the support block 3, and the locking member 4 is mounted in the installation notch 11. When locking, the support block 3 is inserted into the installation notch 11, and the locking member 4 locks and fixes the support block 3. The test specimen 2 on the surface of the support block 3 is flush with the surfaces of the loading platform 1 to form a surface traceless structure; when unlocking, the unlocking member 5 is fitted on the loading platform 1 and adsorbs the locking member 4 to release the locking force on the support block 3. When conducting a rain erosion test, the test specimen 2 is first installed on the surface of the support block 3, and then the support block 3 is inserted into the installation notch 11 on the loading platform 1, and the support block 3 is locked and fixed by the locking member 4. When unlocking, the unlocking member 5 is fitted on the loading platform 1 to adsorb the locking member 4, so that the locking and fixing of the support block 3 are released. The support block 3 is connected to the loading platform 1 by insertion, and is locked and fixed by the locking member 4 during the insertion process. When unlocking, the locking member 4 is adsorbed and unlocked by the unlocking member 5. Its installation and disassembly are simple and convenient, and the operation is time-saving and labor-saving. When locked, the support block 3 is tightly connected in the installation notch 11, and the test specimen 2 can be flush with the surfaces of the loading platform 1 to form a seamless structure, eliminating the gap after the test specimen 2 is installed, ensuring stable testing and accurate test results.

[0037] In this embodiment, the loading platform 1 is provided with a mounting groove 12 on the side wall inside the mounting notch 11, the locking member 4 is installed in the mounting groove 12, and the side wall of the supporting block 3 is provided with a locking groove 31. When locking, the locking member 4 naturally extends into the locking groove 31 to lock and fix the supporting block 3; when unlocking, the unlocking member 5 is sleeved on the loading platform 1 and absorbs the locking member 4 to withdraw from the locking groove 31 to release the locking and fixing force on the supporting block 3. In this structure, the locking member 4 is hidden in the mounting groove 12 on the inner side wall of the mounting notch 11. When the supporting block 3 is inserted, the locking member 4 extends into the locking groove 31 on the supporting block 3 to lock and fix; when unlocking, the unlocking member 5 absorbs the locking member 4 to return to the mounting groove 12, which is a clever design.

[0038] In this embodiment, the locking member 4 includes a locking spring 41 and a locking block 42. The locking block 42 is installed in the installation groove 12 through the locking spring 41. When locked, the locking block 42 is naturally extended into the locking groove 31 by the action of the locking spring 41 to lock and fix the support block 3. When unlocked, the unlocking member 5 is sleeved on the loading platform 1 and adsorbs the locking block 42 to overcome the action of the locking spring 41 and withdraw from the locking groove 31 to release the locking and fixing force on the support block 3. In this structure, the side of the locking block 42 close to the support block 3 is set as a bevel to facilitate the insertion of the support block 3. When the support block 3 is inserted, the locking block 42 is forced to overcome the compression potential energy of the locking spring 41. After the support block 3 is fully inserted, the locking spring 41 releases the elastic potential energy, so that the locking block 42 enters the locking groove 31 on the support block 3 to form a locking fixation. The result is simple, the design is ingenious, and the connection is firm.

[0039] In this embodiment, the unlocking member 5 includes a positioning sleeve 51 and a magnet 52 disposed on the positioning sleeve 51. The positioning sleeve 31 is fitted and positioned on the loading platform 1 when unlocked, and the position of the magnet 52 corresponds to the position of the locking block 42. Specifically, the locking block 42 is configured as a magnetic conductive metal block, and the magnet 52 is disposed on the positioning sleeve 51. The locking block 42 is adsorbed and unlocked by the magnet 52, and the positioning is convenient and fast, and the operation is simple.

[0040] In this embodiment, the positioning sleeve 51 includes a U-shaped sleeve 511 and side suction edges 512 provided on both sides of the U-shaped sleeve 511, and the magnets 52 are distributed on the side suction edges 512 on both sides. The structure is simple.

[0041] In this embodiment, the support block 3 includes a support platform 32 and an insertion platform 33 disposed at the bottom of the support platform 32. The test specimen 2 is wrapped and fixed on the surface of the support platform 32, and the locking groove 31 is provided on the side wall of the insertion platform 33. In this structure, the test specimen 2 is supported and shaped by the support platform 32 so that it is flush with the surfaces of the loading platform 1 to form a seamless structure.

[0042] In this embodiment, positioning notches 331 are provided at both ends of the insertion platform 33, and positioning steps 111 are provided in the installation notch 11 to cooperate with the positioning notches 331. In this structure, the positioning notches 331 cooperate with the positioning steps 111 to achieve positioning, and the structure is simple and ingenious.

[0043] In this embodiment, a buffer spring 112 is installed at the bottom of the installation notch 11, a support plate 113 is installed on the buffer spring 112, and the bottom of the insertion platform 33 abuts against the support plate 113. In this structure, by providing the buffer spring 112 and the support plate 113, the support block 3 abuts against the support plate 113 after insertion and compresses the buffer spring 112, and the buffer spring 112 generates an upward prestress on the support plate 113, thereby enhancing the stability of the installation of the support block 3, and after unlocking, the buffer spring 113 releases elastic potential energy to push out the support block 3, so that the support block 3 is easy to remove.

[0044] Embodiment 2:

[0045] like Fig.12 As shown, the second embodiment of the non-contact magnetic type traceless rain erosion specimen locking mechanism of the present invention is basically the same as the first embodiment, and the only difference is that:

[0046] In this embodiment, the bottom of the test specimen 2 is bent with a rim 21, and the rim 21 is fastened to the bottom of the support platform 32 by bolts 6. In this structure, the connection and fixation by bolts 6 are stable and firm.

[0047] Embodiment 3:

[0048] like Fig.13 As shown, the third embodiment of the non-contact magnetic type traceless rain erosion specimen locking mechanism of the present invention is basically the same as the first embodiment, and the only difference is that:

[0049] In this embodiment, the bottom of the test specimen 2 is bent with a rim 21, a slot 34 is provided between the bottom of the support platform 32 and the insertion platform 33, and the rim 21 is inserted into the slot 34. In this structure, by providing the slot 34 at the bottom of the support platform 32 and plugging it into the rim 21, the test specimen 2 is stably mounted on the surface of the support platform 2 and is not easy to fall off.

[0050] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A non-contact magnetic type traceless rain erosion specimen locking mechanism, characterized in that: The invention comprises a loading platform (1), a test specimen (2), a support block (3), a locking member (4) and an unlocking member (5); the loading platform (1) is provided with an installation notch (11) at a part to be tested; the test specimen (2) is installed on the surface of the support block (3); the locking member (4) is installed in the installation notch (11); when locking, the support block (3) is inserted into the installation notch (11), and the locking member (4) forms a locking and fixing on the support block (3); the test specimen (2) on the surface of the support block (3) is flush with the surfaces of the loading platform (1) to form a surface traceless structure; when unlocking, the unlocking member (5) is fitted on the loading platform (1) and absorbs the locking member (4) to release the locking and fixing force on the support block (3).

2. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 1 is characterized in that: The loading platform (1) is provided with a mounting groove (12) on the side wall in the mounting notch (11), the locking member (4) is installed in the mounting groove (12), and the supporting block (3) is provided with a locking groove (31) on the side wall. When locking, the locking member (4) naturally extends into the locking groove (31) to lock and fix the supporting block (3); when unlocking, the unlocking member (5) is sleeved on the loading platform (1) and absorbs the locking member (4) to exit the locking groove (31) to release the locking and fixing force on the supporting block (3).

3. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 2 is characterized in that: The locking member (4) comprises a locking spring (41) and a locking block (42). The locking block (42) is installed in the mounting groove (12) via the locking spring (41). When locking, the locking block (42) is naturally extended into the locking groove (31) by the action of the locking spring (41) to lock and fix the supporting block (3); when unlocking, the unlocking member (5) is sleeved on the loading platform (1) and absorbs the locking block (42) to overcome the action of the locking spring (41) and exit the locking groove (31) to release the locking and fixing force on the supporting block (3).

4. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 3 is characterized in that: The unlocking member (5) comprises a positioning sleeve (51) and a magnet (52) arranged on the positioning sleeve (51); the positioning sleeve (31) is sleeved and positioned on the loading platform (1) when unlocked; and the magnet (52) corresponds to the position of the locking block (42).

5. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 4 is characterized in that: The positioning sleeve (51) comprises a U-shaped sleeve (511) and side suction edges (512) provided on both sides of the U-shaped sleeve (511), and the magnets (52) are distributed on the side suction edges (512) on both sides.

6. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 5 is characterized in that: The support block (3) comprises a support platform (32) and an insertion platform (33) arranged at the bottom of the support platform (32); the test specimen (2) is wrapped and fixed on the surface of the support platform (32); and the locking groove (31) is provided on the side wall of the insertion platform (33).

7. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 6 is characterized in that: Positioning notches (331) are provided at both ends of the insertion platform (33), and a positioning step (111) is also provided in the installation notch (11) for positioning in cooperation with the positioning notches (331).

8. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 7 is characterized in that: A buffer spring (112) is installed at the bottom of the installation notch (11), a support plate (113) is installed on the buffer spring (112), and the bottom of the insertion platform (33) abuts against the support plate (113).

9. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 8, characterized in that: The bottom of the test specimen (2) is bent with an edge (21), and the edge (21) is fastened to the bottom of the support platform (32) via bolts (6).

10. The non-contact magnetic type traceless rain erosion specimen locking mechanism according to claim 8, characterized in that: The bottom of the test specimen (2) is bent with a rim (21), a slot (34) is provided between the bottom of the support platform (32) and the insertion platform (33), and the rim (21) is inserted into the slot (34).

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