Ceramic rod pin connecting structure
By adopting ceramic materials and a threaded connection structure design, the problems of wear resistance and connection stability of metal rod pins are solved, thereby improving wear resistance and sealing performance, extending service life and preventing contaminants from entering.
Patent Information
- Application Number
- CN202422817983.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Traditional metal rod pins in centrifuges suffer from poor wear resistance and weak connection stability, which may lead to wear and the generation of metal particles that contaminate the material, and the connection is unstable.
The rod pin body is made of ceramic material and combined with structural designs such as threaded groove, threaded post, connecting post, sealing component and limit block to achieve a stable connection and seal, preventing loosening and contaminant entry.
It improves the wear resistance of the pins, extends their service life, ensures the stability and sealing of the connection, prevents contaminants from entering, and guarantees the stable operation of the device.
Smart Images
Figure CN223767874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical parts technology, specifically to a ceramic rod pin connection structure. Background Technology
[0002] The bar pin is an important component in a centrifuge, playing a crucial role in the operation of the equipment. The bar pin is typically installed inside the centrifuge drum or rotor, working in conjunction with other components (such as screens and blades). During centrifuge operation, the drum rotates at high speed, and the bar pin rotates along with it.
[0003] Traditional pin structures are typically made of metal, which, while possessing high strength and toughness, presents two main problems in practical use: firstly, metal materials have relatively poor wear resistance and are prone to wear due to long-term friction; secondly, metal particles or contaminants may be generated on the metal surface after wear, leading to contamination and weak connection stability between the pin and the connecting seat. To improve the wear resistance of pin structures, a new pin connection structure is needed to effectively solve these problems. Therefore, a ceramic pin connection structure is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a ceramic rod pin connection structure that solves the problems in the prior art where metal particles or contaminants may be generated on the metal surface after wear, and the connection stability between the rod pin and the connecting seat is not strong.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a ceramic rod pin connection structure, comprising a rod pin body and a connecting seat, wherein a threaded groove is formed at the bottom of the rod pin body, a first spring is fixedly connected in the threaded groove, a shrink plate is fixedly connected at the bottom of the first spring, a connecting post is fixedly connected at the top of the connecting seat, a sealing component is provided on the outside of the connecting post, a threaded post is fixedly connected at the top of the connecting post, and mounting seats are fixedly connected on both sides of the connecting post, each of the two mounting seats having a threaded hole through it, a threaded rod being threadedly connected in the threaded hole, a limit block being rotatably connected at the top of the threaded rod, and a uniformly distributed limit hole is formed at the bottom of the rod pin body, and the limit hole is located outside the threaded groove.
[0006] By adopting the above technical solution, the connecting part of the pin body is designed with threads, which facilitates a firm connection and separation with the connecting seat via the threaded post, connecting post, and connecting seat. During the connection process, the threaded part ensures the stability of the pin body and prevents loosening during use. The limiting blocks on both sides of the connecting post insert into the limiting groove at the bottom of the pin body to achieve secondary limiting, making the threaded connection more stable.
[0007] As a further description of the above technical solution: the sealing assembly includes a sealing seat, which is fixedly connected to the outside of the connecting column. The top of the sealing seat is provided with a telescopic groove, and a plurality of second springs are fixedly connected in the telescopic groove. A sliding ring is fixedly connected to the top of the second spring, and a sealing ring is fixedly connected to the top of the sliding ring.
[0008] By adopting the above technical solution, the sealing component can improve the sealing of the connection between the rod pin body and the connecting seat, thereby preventing contaminants from entering the internal connection and ensuring the stable operation of the entire device.
[0009] As a further description of the above technical solution: the threaded post is disposed in the threaded groove, and the outside of the threaded post is threadedly connected to the threaded groove.
[0010] By adopting the above technical solution, it is convenient to connect the threaded post to the pin body.
[0011] As a further description of the above technical solution: the mounting base is disposed below the sealing assembly.
[0012] By adopting the above technical solution, the mounting base serves to provide support and connection.
[0013] As a further description of the above technical solution: the limiting block is disposed inside the limiting hole.
[0014] By adopting the above technical solution, the limiting block is inserted into the limiting hole to achieve the limiting effect.
[0015] As a further description of the above technical solution: a knob is fixedly connected to the bottom of the threaded rod, and the knob is located on the outside of the mounting base.
[0016] By adopting the above technical solution, the threaded rod can be rotated by turning the knob.
[0017] As a further description of the above technical solution: a gasket is fixedly connected to the bottom of the shrink plate, and the gasket is set at the top of the threaded column.
[0018] By adopting the above technical solution, the pressure on the gasket can drive the shrink plate to squeeze the first spring to shrink.
[0019] As a further description of the above technical solution: the sliding ring is disposed in the expansion groove, and the outer side of the sliding ring is slidably connected to the inner wall of the expansion groove.
[0020] By adopting the above technical solution, it is convenient for the sliding ring to drive the sealing ring to expand and contract within the expansion groove.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0022] This utility model provides a ceramic pin connection structure, which works in conjunction with a sealing component, threaded groove, first spring, contraction plate, threaded post, connecting post, mounting base, threaded rod, limiting block, and limiting hole. The working contact part of the pin body is made of wear-resistant ceramic material, which can effectively reduce the wear of the material surface during long-term use and extend the service life of the parts. The connecting part of the pin body adopts a threaded design, which facilitates a firm connection and separation with the connecting base through the threaded post and connecting post. During the connection process, the threaded part ensures the stability of the pin body and prevents loosening during use. The limiting blocks on both sides of the connecting post are inserted into the limiting groove at the bottom of the pin body to achieve secondary limiting, which makes the threaded connection more stable. In addition, the sealing component can improve the sealing of the connection between the pin body and the connecting base after connection, preventing contaminants from entering the internal connection and ensuring the stable operation of the entire device. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0025] Figure 3 This is an exploded view of the overall structure of this utility model.
[0026] In the diagram: 1. Pin body; 2. Threaded groove; 3. First spring; 4. Shrink plate; 5. Connecting seat; 6. Connecting column; 7. Sealing seat; 8. Telescopic groove; 9. Second spring; 10. Sliding ring; 11. Threaded column; 12. Mounting seat; 13. Threaded rod; 14. Limiting block; 15. Knob; 16. Sealing ring; 17. Gasket; 18. Threaded hole; 19. Limiting hole. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0029] Reference Figure 1 , Figure 2 and Figure 3The present invention discloses a ceramic pin connection structure, including a pin body 1 and a connecting seat 5. The working contact part of the pin body 1 is made of wear-resistant ceramic material, which has high hardness and good wear resistance, and can effectively reduce the wear of the material surface during long-term use and extend the service life of the parts. The ceramic part is in direct contact with the material, reducing wear caused by friction. The bottom of the pin body 1 has a threaded groove 2, which facilitates threaded connection with the threaded post 11. A first spring 3 is fixedly connected in the threaded groove 2, and a shrink plate 4 is fixedly connected to the bottom of the first spring 3. When the first spring 3 is compressed and shrinks, it can drive the shrink plate 4 to shrink. A connecting post 6 is fixedly connected to the top of the connecting seat 5. A sealing component is set on the outside of the connecting post 6. A threaded post 11 is fixedly connected to the top of the connecting post 6, which serves as a connection. Mounting seats 12 are fixedly connected to both sides of the connecting post 6, which also serve as a connection. Both mounting seats 12 have threaded holes 18 that pass through them. A threaded rod 13 is threadedly connected to the threaded hole 18. A limit block 14 is rotatably connected to the top of the threaded rod 13. The limit block 14 is inserted into the limit hole 19 to perform a limiting function. The bottom of the pin body 1 has evenly distributed limit holes 19, which are located outside the threaded groove 2.
[0030] Reference Figure 2 and Figure 3 The sealing assembly includes a sealing seat 7, which is fixedly connected to the external of the connecting column 6. The top of the sealing seat 7 has a telescopic groove 8, and multiple second springs 9 are fixedly connected inside the telescopic groove 8. A sliding ring 10 is fixedly connected to the top of the second spring 9, and a sealing ring 16 is fixedly connected to the top of the sliding ring 10. The sliding ring 10 is set inside the telescopic groove 8, and the outside of the sliding ring 10 is slidably connected to the inner wall of the telescopic groove 8. The sealing assembly can improve the sealing of the connection between the rod pin body 1 and the connecting seat 5 after connection, so as to prevent contaminants from entering the internal connection and ensure the stable operation of the entire device.
[0031] Reference Figure 1 , Figure 2 and Figure 3 The threaded post 11 is set in the threaded groove 2, and the outside of the threaded post 11 is threadedly connected to the threaded groove 2, which facilitates the connection between the threaded post 11 and the pin body 1. The mounting seat 12 is set below the sealing assembly, and the mounting seat 12 serves as a support and connection. The limiting block 14 is set in the limiting hole 19, and the limiting block 14 is inserted into the limiting hole 19 to achieve the limiting effect. The bottom of the threaded rod 13 is fixedly connected to a knob 15, and the knob 15 is set outside the mounting seat 12. The knob 15 can drive the threaded rod 13 to rotate. The bottom of the shrink plate 4 is fixedly connected to a gasket 17, and the gasket 17 is set on the top of the threaded post 11.
[0032] Working Principle: First, the bottom of the connecting seat 5 is connected to the mechanical equipment, and the ceramic pin is installed in the mechanical equipment through the connecting structure. During operation, the working contact part of the pin body 1 is made of wear-resistant ceramic material. The ceramic part is in direct contact with the material, and due to its excellent wear resistance, it can effectively resist the wear caused by long-term friction. When connecting, align the connecting post 6 of the connecting seat 5 with the threaded groove 2 at the bottom of the pin body 1, and then gradually insert the threaded post 11 into the threaded groove 2. Due to the action of the thread, the connection effect of the pin body 1 is achieved. At the same time, the sealing seat 7 outside the connecting post 6 also moves upward together. The sliding ring 10 and sealing ring 16 on the sealing seat 7, under the action of the second spring 9 in the telescopic groove 8, maintain a relatively tight contact with the bottom of the pin body 1, forming a seal. Finally, when the threaded post 11 is basically screwed into the appropriate position, rotate the knob 15 on the outside of the mounting seat 12. The knob 15 drives the threaded rod 13 to rotate. Since the threaded rod 13 is threadedly connected to the threaded hole 18 of the mounting seat 12, the threaded rod 13 will move upward within the threaded hole 18. The limiting block 14, which is rotatably connected to the top of the threaded rod 13, moves upward together. When the limiting block 14 enters the limiting hole 19 at the bottom of the pin body 1, it achieves the limiting of the bottom of the pin body 1, preventing relative rotation between the connecting seat 5 and the pin body 1, and further enhancing the reliability of the connection. When the limiting block 14 is not aligned with the limiting hole 19, the threaded column 11 can be rotated again in the thread groove 2 for fine adjustment. When the threaded column 11 rotates upward again, it squeezes the washer 17 and the shrink plate 4, thereby driving the first spring 3 to shrink, ensuring that the threaded column 11 can be screwed into the thread groove 2 again, thereby ensuring that the lower limiting block 14 can be aligned with the limiting hole 19.
[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A ceramic dowel pin connection structure comprising a dowel pin body (1) and a connection seat (5), characterized in that: The rod pin body (1) bottom is provided with a threaded groove (2), the threaded groove (2) is fixedly connected with a first spring (3), the first spring (3) bottom is fixedly connected with a shrink plate (4), the connecting seat (5) top is fixedly connected with a connecting column (6), the connecting column (6) is provided with a sealing assembly outside, the connecting column (6) top is fixedly connected with a threaded column (11), the connecting column (6) both sides are fixedly connected with a mounting seat (12), the threaded hole (18) is formed in the two mounting seats (12), the threaded hole (18) is screwed with a threaded rod (13), the threaded rod (13) top is rotatably connected with a limit block (14), the rod pin body (1) bottom is provided with a plurality of limit holes (19) arranged uniformly, and the limit hole (19) is arranged outside the threaded groove (2).
2. The ceramic pin-and-socket connection structure of claim 1, wherein: The sealing assembly comprises a sealing seat (7), the sealing seat (7) is fixedly connected with the connecting column (6) outside, the sealing seat (7) top is provided with an expansion slot (8), the expansion slot (8) is fixedly connected with a plurality of second springs (9), the second spring (9) top is fixedly connected with a sliding ring (10), and the sliding ring (10) top is fixedly connected with a sealing ring (16).
3. The ceramic pin-and-socket connection structure of claim 1, wherein: The threaded column (11) is arranged in the threaded groove (2), and the threaded column (11) is screwed with the threaded groove (2) outside.
4. The ceramic dowel pin connection structure of claim 1, wherein: The mounting seat (12) is arranged below the sealing assembly.
5. The ceramic dowel pin connection structure of claim 1, wherein: The limit block (14) is arranged in the limit hole (19).
6. The ceramic dowel pin connection structure of claim 1, wherein: The threaded rod (13) bottom is fixedly connected with a knob (15), and the knob (15) is arranged outside the mounting seat (12).
7. The ceramic dowel pin connection structure of claim 1, wherein: The shrink plate (4) bottom is fixedly connected with a gasket (17), and the gasket (17) is arranged on the threaded column (11) top.
8. The ceramic dowel pin connection structure of claim 2, wherein: The sliding ring (10) is arranged in the expansion slot (8), and the sliding ring (10) is slidably connected with the expansion slot (8) inner wall outside. The threaded rod (13) bottom is fixedly connected with a knob (15), and the knob (15) is arranged outside the mounting seat (12). The shrink plate (4) bottom is fixedly connected with a gasket (17), and the gasket (17) is arranged on the threaded column (11) top. The sliding ring (10) is arranged in the expansion slot (8), and the sliding ring (10) is slidably connected with the expansion slot (8) inner wall outside.