Multi-physics field coupling integrated detection device for intermediate case cover
By designing a multi-physics field coupling integrated testing device for the intermediate casing cover, and adopting angular pin and cylindrical pin positioning mechanisms and layered composite sealing plugs, the entire process of flow direction verification, flow rate testing and sealing performance testing of the intermediate casing cover is integrated, which solves the problems of low testing efficiency and inaccurate evaluation results in the existing technology, and improves testing efficiency and reliability of results.
Patent Information
- Application Number
- CN202520527605.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-24
AI Technical Summary
Existing technologies cannot integrate flow direction verification, flow rate testing, and sealing performance testing of intermediate casing covers on the same tooling platform, resulting in low testing efficiency, large errors, and evaluation results that do not match actual working conditions.
A multi-physics coupling integrated testing device for intermediate casing cover was designed. It adopts a positioning and fixing mechanism with angular pins and cylindrical pins, combined with a layered composite sealing plug, to realize the integration of the entire process of flow direction verification, flow rate test and sealing performance test. The sealing mechanism with high pressure resistant ceramic coating and shape memory alloy skeleton layer can adapt to the testing needs of multiple working conditions.
It achieves efficient integrated testing of intermediate casing covers, reduces clamping errors, ensures consistent testing standards, provides excellent sealing performance, and makes evaluation results closer to actual working conditions.
Smart Images

Figure CN223796071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a multi-physics field coupling integrated detection device for intermediate casing covers, belonging to the field of parts inspection technology. Background Technology
[0002] In the production and testing of intermediate receiver covers, according to product testing specifications, intermediate receiver covers must pass three key performance verifications:
[0003] Firstly, flow direction detection is carried out under a pressure of 0.1±0.02MPa and a temperature of 60±3℃ to ensure that the lubricating oil is completely injected into the designated hole.
[0004] Secondly, flow rate testing was conducted under pressure conditions of 0.5±0.02MPa and temperature conditions of 60±3℃, requiring precise flow rate control of 0.46±0.1L / min.
[0005] Third, it must pass a sealing test at a pressure of 300±20KPa for 2 minutes, and any leakage is strictly prohibited.
[0006] However, existing testing fixtures can only perform segmented testing of single test items, and cannot integrate the entire process of flow direction verification, flow rate testing, and sealing performance testing on a single fixture platform. This decentralized testing mode leads to low process integration efficiency, multiple clamping and positioning can easily introduce errors, and it is difficult to ensure the stability of environmental parameters (such as continuous temperature field control) between different test conditions, which seriously affects the reliability of test data and production efficiency. Especially in the high-pressure sealing verification stage, due to the lack of a pressure control system linked to flow direction / flow rate testing, it is impossible to reproduce the multi-dimensional stress state of the casing cover under actual working conditions, resulting in a deviation between the sealing performance assessment and the actual use scenario.
[0007] Therefore, there is an urgent need for an integrated detection device with multi-physics field coupling control capability. Utility Model Content
[0008] To address the problems existing in the background technology, this utility model provides a multi-physics field coupling integrated detection device for intermediate casing cover.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] Option 1:
[0011] A multi-physics field coupling integrated detection device for an intermediate casing cover includes a base, a vertical plate, a target plate, a positioning and fixing mechanism, and a sealing mechanism. The target plate and the vertical plate are installed on the upper end of the base. The vertical plate has a through hole in the middle. The positioning and fixing mechanism is provided on the front of the vertical plate. The sealing mechanism is provided at the upper end of the vertical plate. The target plate is set to correspond to the oil outlet of the product.
[0012] The positioning and fixing mechanism includes an angular pin arranged circumferentially along the through hole and a plurality of mounting screws.
[0013] The angular pin is inserted into the vertical plate and then tightened with a nut. A cylindrical pin is also inserted between the angular pin and the vertical plate.
[0014] The sealing mechanism includes a support plate, two sealing screws, one sealing screw, a support block, one sealing plug, two sealing plugs, three sealing plugs, and four sealing plugs. The left and right sides of the upper end of the support plate are fixedly connected to the corresponding support blocks. Each support block is threaded with a one sealing screw. The inner end of each one sealing screw abuts against the corresponding one sealing plug. The front of the support plate is inserted with two sealing plugs. The one sealing plug, two sealing plugs, and three sealing plugs are correspondingly inserted into the holes of the parts for sealing. The base is detachably fixedly connected to the lower end of the support plate. The upper end of the support plate is threaded with a two sealing screw. The inner end of the two sealing screws is fixed with a four sealing plug. The four sealing plugs are correspondingly set to the oil outlet of the product.
[0015] All four sealing plugs, namely sealing plug one, sealing plug two, sealing plug three, and sealing plug four, are polyurethane plugs.
[0016] The outer sides of sealing plug one, sealing plug two, sealing plug three, and sealing plug four are all fitted with sealing rings.
[0017] Option 2:
[0018] The difference between Option 2 and Option 1 is:
[0019] The sealing plugs 1, 2, 3, and 4 have the same structure, each consisting of a high-pressure resistant ceramic coating, a shape memory alloy skeleton layer, and a flexible silicone layer arranged sequentially from the inside out.
[0020] The outer surface of the flexible silicone layer has a wavy texture.
[0021] The high-pressure resistant ceramic coating is made of zirconia-based ceramic composite material and is attached to the inner side of the shape memory alloy skeleton by plasma spraying process, with a surface finish Ra≤0.8μm.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] This invention achieves a fully integrated operation of flow direction verification, flow rate testing, and sealing performance testing of the intermediate casing cover through multi-physics field coupling and integration design, improving testing efficiency and process continuity. The precise positioning mechanism using angular pins and cylindrical pins effectively avoids errors introduced by multiple clamping operations, ensuring consistent testing standards. The sealing mechanism employs a layered composite sealing plug with a corrugated texture design, maintaining zero-leakage sealing performance even under high pressure of 300±20KPa. The shared main positioning mechanism and detachable sealing module design meet the needs of multi-condition testing while reducing equipment redundancy costs. The multi-physics field collaborative control system can reproduce the pressure-temperature-flow coupling effect in actual operating conditions, making the sealing performance evaluation results closer to real-world usage scenarios and solving the evaluation deviation problem caused by unstable environmental parameters in traditional decentralized testing. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 yes Figure 1 AA section view;
[0026] Figure 3 yes Figure 1 BB section view;
[0027] Figure 4 yes Figure 1 CC section view;
[0028] Figure 5 This is a schematic diagram showing the connection relationship between the support plate and the second sealing screw.
[0029] Figure 6 This is a cross-sectional view of the sealing plug in Example 2. Detailed Implementation
[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0031] Example 1:
[0032] A multi-physics field coupling integrated detection device for an intermediate casing cover includes a base 1, a vertical plate 3, a target plate 11, a positioning and fixing mechanism, and a sealing mechanism. The target plate 11 and the integrally formed vertical plate 3 are installed on the upper end of the base 1. The vertical plate 3 has a through hole 4 in the middle that runs through its thickness direction. The positioning and fixing mechanism is provided on the front side of the vertical plate 3. The sealing mechanism is provided on the upper end of the vertical plate 3. The target plate 11 is correspondingly set with the oil outlet 8 of the product.
[0033] The positioning and fixing mechanism includes a angular pin 7 arranged circumferentially along the through hole 4 and a plurality of mounting screws 5.
[0034] After the angular pin 7 is inserted into the vertical plate 3, it is tightened and fixed by the nut 9. A cylindrical pin 12 is also inserted between the angular pin 7 and the vertical plate 3 to further restrict the angular pin 7 and ensure positioning accuracy.
[0035] The sealing mechanism includes a support plate 2, a second sealing screw 13, a first sealing screw 14, a support block 15, a first sealing plug 17, a second sealing plug 19, a third sealing plug 22, and a fourth sealing plug 24. The left and right sides of the upper end of the upright plate 3 are respectively fixedly connected to the corresponding support blocks 15 by corresponding screws. Each support block 15 is threaded with a first sealing screw 14. The inner end of each first sealing screw 14 abuts against the corresponding first sealing plug 17. The front of the upright plate 3 is inserted with a second sealing plug 19 and a third sealing plug 22. The first sealing plug 17, the second sealing plug 19, and the third sealing plug 22 are correspondingly and sealed with the corresponding holes of the parts. The base 1 is detachably and fixedly connected to the lower end of the support plate 2 by corresponding screws. The upper end of the support plate 2 is threaded with a second sealing screw 13. The inner end of the second sealing screw 13 is glued and fixed with a fourth sealing plug 24. The fourth sealing plug 24 is correspondingly set with the oil outlet 8 of the product.
[0036] The sealing plugs 17, 19, 22, and 24 are all polyurethane plugs, which reduce scratches and damage to the product.
[0037] The outer sides of the sealing plug 17, sealing plug 29, sealing plug 32, and sealing plug 42 are all fitted with sealing rings 18.
[0038] Example 2:
[0039] The difference between this embodiment and Embodiment 1 is that:
[0040] The sealing plugs 17, 19, 22, and 24 have the same structure, each consisting of a high-pressure resistant ceramic coating 10, a shape memory alloy skeleton layer 16, and a flexible silicone layer 6 arranged sequentially from the inside out. The shape memory alloy skeleton layer 16 undergoes deformation triggered by a preset temperature, such as activation at 60°C, expanding outward to compensate for the gap between the sealing plug and the component. This actively adjusts the sealing pressure, solving the sealing failure problem caused by thermal expansion / contraction in traditional seals.
[0041] The outer surface of the flexible silicone layer 6 has a wavy texture resembling fish scales. When it is applied to the surface of a part, it can fill tiny uneven areas through microscopic deformation, achieving an initial seal, adapting to part tolerance fluctuations, and reducing the risk of leakage due to clamping deviations. It has a temperature resistance range of -50℃ to 200℃, meeting the requirements of high-temperature testing environments.
[0042] The high-pressure resistant ceramic coating 10 is made of zirconia-based ceramic composite material and is attached to the inner side of the shape memory alloy skeleton by plasma spraying process, with a surface finish Ra≤0.8μm. It resists high pressure penetration above 300KPa and prevents lubricating oil from penetrating the sealing interface under extreme pressure.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0044] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An intermediate cassette cover multi-physical field coupling integrated detection device, characterized in that: The utility model provides a sealing mechanism of target plate, it includes base (1), stand (3), target plate (11), positioning fixed establishment and sealing mechanism, the upper end of base (1) is installed target plate (11) and stand (3), the middle part of stand (3) is equipped with through -hole (4), and the front of stand (3) is equipped with positioning fixed establishment, and the upper end of stand (3) is equipped with sealing mechanism, target plate (11) with product's oil outlet (8) correspond setting.
2. The multi-physics coupling integrated detection device for an intermediate cabinet cover according to claim 1, wherein: The positioning fixed establishment includes the angular pin (7) and a plurality of mounting screws (5) that are circumferentially arranged along the through -hole (4).
3. The multi-physical field coupling integrated detection device for an intermediate cabinet cover according to claim 2, characterized in that: The angular pin (7) is inserted into the stand (3) and is fixed by a nut (9), and a cylindrical pin (12) is also inserted between the angular pin (7) and the stand (3).
4. The multi-physics coupling integrated detection device for an intermediate cabinet cover according to claim 1, wherein: The sealing mechanism includes a support plate (2), a sealing screw two (13), a sealing screw one (14), a support block (15), a sealing plug one (17), a sealing plug two (19), a sealing plug three (22), and a sealing plug four (24). The left and right sides of the upper end of the stand (3) are fixedly connected with corresponding support blocks (15), respectively. Each of the support blocks (15) is threadedly connected with a sealing screw one (14). The inner end of each of the sealing screw ones (14) abuts against a corresponding sealing plug one (17). The front of the stand (3) is inserted with a sealing plug two (19) and a sealing plug three (22). The sealing plug one (17), the sealing plug two (19), and the sealing plug three (22) are sealingly inserted into corresponding holes of parts. The lower end of the base (1) is detachably fixedly connected with the support plate (2). The upper end of the support plate (2) is threadedly connected with a sealing screw two (13). The inner end of the sealing screw two (13) is fixedly connected with a sealing plug four (24). The sealing plug four (24) is correspondingly arranged with the oil outlet (8) of the product.
5. The multi-physical field coupling integrated detection device for an intermediate cabinet cover according to claim 4, characterized in that: The sealing plug one (17), the sealing plug two (19), the sealing plug three (22), and the sealing plug four (24) are all polyurethane plugs.
6. The multi-physical field coupling integrated detection device for an intermediate cabinet cover according to claim 5, characterized in that: The outer sides of the sealing plug one (17), the sealing plug two (19), the sealing plug three (22), and the sealing plug four (24) are all sleeved with sealing rings (18).
7. The multi-physics coupling integrated detection device for an intermediate cabinet cover according to claim 4, characterized in that: The sealing plug one (17), the sealing plug two (19), the sealing plug three (22), and the sealing plug four (24) have the same structure, which includes, from inside to outside, a high-pressure-resistant ceramic coating (10), a memory alloy framework layer (16), and a flexible silica gel layer (6).
8. The multi-physical field coupling integrated detection device for an intermediate cabinet cover according to claim 7, characterized in that: The outer surface of the flexible silica gel layer (6) is corrugated.
9. The multi-physical field coupling integrated detection device for an intermediate cabinet cover according to claim 7, characterized in that: The high-pressure-resistant ceramic coating (10) is made of zirconium oxide-based ceramic composite material and is attached to the inner side of the memory alloy framework by plasma spraying process, with a surface roughness Ra≤0.8 μm.