Ceramic shaft welding corrugated pipe
By using ceramic shafts and flange connection structures, the problems of cracking and wear of bellows shafts were solved, improving the life and performance of bellows and achieving stability of axial movement and uniform heat dissipation.
Patent Information
- Application Number
- CN202520924565.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-05-12
AI Technical Summary
Existing bellows have problems such as cracking, air leakage and reduced lifespan in some shaft components after welding, and wear and scratches on the shaft surface caused by long-term axial movement.
Ceramic shafts are used to replace traditional shafts, and flanges are used for connection. Combined with bearings and snap rings for positioning, the welding structure is eliminated. At the same time, fan-shaped blades with good thermal conductivity are embedded in the flange to conduct heat evenly.
It improves the lifespan and performance of bellows, prevents shaft cracking and wear, enhances compressive strength and chemical inertness, and improves the stability of axial movement and heat dissipation.
Smart Images

Figure CN223953592U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bellows technical field especially relates to a ceramic shaft welded bellows. BACKGROUND
[0002] The bellows is essentially a kind of pipe structure with corrugated shape, and the bellows is widely used in water conservancy, industry, construction and medical industry, and the material of the bellows is different, such as metal and plastic, which can be selected according to actual application.
[0003] In some applications, the shaft structure is installed in the bellows, and part of the shaft appears cracking after welding of the original structure, even if there is no cracking, some parts appear air leakage and life reduction in subsequent test and operation, and long-time axial movement causes many abrasions and scratches on the surface of the shaft, which cannot be used for a long time.
[0004] Therefore, how to provide a ceramic shaft welded bellows is a problem to be solved by those skilled in the art. INVENTION CONTENTS
[0005] One purpose of the utility model is to provide a ceramic shaft welded bellows, which solves the problem that part of the shaft appears cracking after welding of the original structure in the prior art, even if there is no cracking, some parts appear air leakage and life reduction in subsequent test and operation, and long-time axial movement causes many abrasions and scratches on the surface of the shaft.
[0006] According to the ceramic shaft welded bellows provided by the utility model, the flange A is provided with the flange B on one side, the shaft is arranged between the flange A and the flange B, one end of the bellows is arranged on the flange B, the other end of the bellows is provided with the flange C, the other side of the flange C is provided with the bearing sleeve, and the bearing sleeve and the flange C are movably sleeved on the surface of the shaft.
[0007] The surface of the shaft is provided with the bearing, and the side surface of the bearing is arranged on the inner wall of the bearing sleeve.
[0008] The inner wall of the bearing sleeve is provided with the snap spring near the two sides of the bearing, and the bearing is limited on the inner wall of the bearing sleeve by the snap spring.
[0009] The two ends of the bellows are welded on the opposite surfaces of the flange A and the flange C.
[0010] The inner wall of the flange C is embedded with the fan-shaped blade.
[0011] The shaft is a ceramic shaft.
[0012] The utility model has the advantages of:
[0013] By setting the shaft, the shaft is connected together through the flange A and the flange B, so that the shaft does not need to be welded, the original welding structure is removed, and then the shaft is replaced by the ceramic shaft, thereby improving the hardness, the compression strength and the chemical inertia, and the life and the performance are significantly improved in subsequent use, and the problems of cracking of part of the shaft after welding in the prior art, even if the cracking does not occur, part of the air leakage and the life reduction in subsequent test and operation, and the wear and the scratch on the shaft surface caused by long-time axial movement are solved. BRIEF DESCRIPTION OF DRAWINGS
[0014] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principle of the present application, and do not constitute a limitation on the present application. In the drawings:
[0015] Figure 1 A whole three-dimensional structure schematic diagram of the ceramic shaft welded corrugated pipe is provided for the present application.
[0016] Figure 2 A cross-sectional three-dimensional structure schematic diagram of the position of the shaft in the ceramic shaft welded corrugated pipe is provided for the present application.
[0017] Figure 3 A cross-sectional three-dimensional structure schematic diagram of the position of the fan-shaped blade in the ceramic shaft welded corrugated pipe is provided for the present application.
[0018] The drawings show that: 1, the corrugated pipe; 2, the flange A; 3, the shaft; 4, the flange B; 5, the bearing sleeve; 6, the bearing; 7, the clamp spring; 8, the fan-shaped blade; 9, the flange C. DETAILED DESCRIPTION
[0019] The present application will now be further described in detail with reference to the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the present application, so they only show the structure related to the present application.
[0020] REFERENCE Figure 1 , Figure 2 and Figure 3, including a bellows 1, a flange A 2, a flange B 4 and a shaft 3, the flange A 2 is provided with the flange B 4 on one side, the shaft 3 is arranged between the flange A and the flange B, the shaft 3 is specifically clamped between the flange A 2 and the flange B 4, one end of the shaft 3 is stabilized by bolts between the flange B 4 and the flange A 2, so that the shaft 3 is stably positioned, the original welding structure is removed, and the subsequent service life and performance improvement are significantly improved, the shaft 3 is a ceramic shaft 3, the ceramic shaft 3 has the characteristics of high strength, high hardness and chemical inertness, so that the shaft 3 is not easy to wear and scratch, one end of the bellows 1 is arranged on the flange B, the other end of the bellows 1 is provided with a flange C 9, and the two ends of the bellows 1 are welded on the opposite surfaces of the flange A and the flange C 9 respectively, the other side of the flange C 9 is provided with a bearing sleeve 5 for stably fixing a bearing 6, and the bearing sleeve 5 and the flange C 9 are movably sleeved on the surface of the shaft 3.
[0021] With reference to Figure 1 , Figure 2 and Figure 3 , the surface of the shaft 3 is provided with the bearing 6, the side surface of the bearing 6 is arranged on the inner wall of the bearing sleeve 5, the inner wall of the bearing sleeve 5 is provided with a clamping spring 7 near the positions on both sides of the bearing 6, the bearing 6 is limited on the inner wall of the bearing sleeve 5 through the clamping spring 7, the two clamping springs 7 are clamped on the bearing sleeve 5, so that the bearing 6 is limited on the bearing sleeve 5, the bearing 6 is not easy to move along the bearing sleeve 5, and the stability of the bearing 6 is ensured, so that the shaft 3 is more stable when moving axially on the bearing 6.
[0022] With reference to Figure 1 , Figure 2 and Figure 3 , in the embodiment, the inner wall of the flange C 9 is embedded with a fan-shaped blade 8, the fan-shaped blade 8 is mainly used for heat conduction, the fan-shaped blade 8 is made of copper and has good heat conductivity, when the temperature in the cavity between the flange B 4 and the flange C is increased, the temperature is conducted to the fan-shaped blade 8, the heat is uniformly conducted through the fan-shaped blade 8, then the heat is conducted to the surface of the flange C through the flange C, and then the heat is conducted through the flange C, so that the high temperature in the flange C does not affect the use of the shaft 3.
[0023] The above merely describes a preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A ceramic-braze bellows characterized by, It comprises a bellows (1), a flange A (2) and a shaft (3), one side of the flange A (2) is provided with a flange B (4), the shaft (3) is arranged between the flange A and the flange B, one end of the bellows (1) is arranged on the flange B, the other end of the bellows (1) is provided with a flange C (9), the other side of the flange C (9) is provided with a bearing sleeve (5), the bearing sleeve (5) and the flange C (9) are movably sleeved on the surface of the shaft (3); The surface of the shaft (3) is provided with a bearing (6), and the side of the bearing (6) is arranged on the inner wall of the bearing sleeve (5).
2. A ceramic-braze bellows (1) according to claim 1, characterized in that The inner wall of the bearing sleeve (5) is provided with a clamping spring (7) near the two sides of the bearing (6), and the bearing (6) is limited on the inner wall of the bearing sleeve (5) through the clamping spring (7).
3. A ceramic-braze bellows (1) according to claim 2, characterized in that The two ends of the bellows (1) are respectively welded on the opposite surfaces of the flange A and the flange C (9).
4. A ceramic-braze bellows (1) according to claim 3, characterized in that The inner wall of the flange C (9) is embedded with a fan blade (8).
5. A ceramic-braze bellows (1) according to claim 4, characterized in that The shaft (3) is a ceramic shaft (3).