Lightweight ceramic shaft

Abstract

The utility model relates to the technical field of ceramic shafts, and discloses a lightweight ceramic shaft, which comprises a ceramic shaft main body and two semicircular plates, the ceramic shaft main body comprises a first half shaft and a second half shaft, a grid layer is fixedly connected in the ceramic shaft main body, and an assembling mechanism is arranged on the ceramic shaft main body. Through the design of the assembling mechanism, when the outer side of the ceramic shaft body is broken, cracks cannot be spread into the ceramic shaft body quickly through the arranged grid layer, and when the surface of the outer side is collided and lost, the grid layer can further avoid the situation that the outer side of the ceramic shaft body falls off in a large area, the service life of the ceramic shaft body is effectively prolonged, and the strength of the ceramic shaft body is effectively improved; and if the first half shaft or the second half shaft is seriously damaged, the corresponding first half shaft or the second half shaft can be directly replaced, so that the situation that the use cost is increased due to the fact that the whole half shaft needs to be replaced when a certain position is seriously damaged in a traditional integrated design is avoided.

Description

Technical Field

[0001] This utility model relates to the field of ceramic shaft technology, and in particular to a lightweight ceramic shaft. Background Technology

[0002] A shaft generally refers to a cylindrical object that passes through components such as bearings, wheels, or gears. It is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. A ceramic shaft refers to a shaft made of ceramic material. Compared with metal shafts, ceramic shafts are more corrosion resistant and have the advantages of low density and light weight, making them lighter than metal shafts.

[0003] Patent publication number CN219717966U discloses a ceramic shaft, including a ceramic shaft body, which is a hollow circular tube structure. At least one mating groove is formed on the outer circumferential surface of the ceramic shaft body. The bottom of the mating groove is an arc surface, concentric with the outer circumferential surface of the ceramic shaft body. The two side walls extending from the bottom of the mating groove are groove walls, and the planes containing these two groove walls are not parallel to the axis of the ceramic shaft body. The bottom of the mating groove is designed with an arc surface, and the arc surface of the groove bottom has the same curvature as the outer circumferential surface of the ceramic shaft and is concentrically designed. The entire shaft is formed by powder compaction and sintering, which is convenient and quick to process, has a high yield, and effectively reduces production and usage costs. Simultaneously, the groove walls are not parallel to the axis of the ceramic shaft, ensuring good fit and positioning with the rotor components during forward and reverse rotation, preventing slippage and guaranteeing the reliability of the ceramic shaft.

[0004] While ceramic shafts exhibit strong corrosion resistance during use, they are also relatively fragile. The aforementioned device, similar to existing ceramic shaft structures, is an integrated design. If the shaft surface breaks due to impacts or other factors, fragments falling from the broken section can cause damage. If the damage becomes severe, replacement is necessary, but this requires replacing the entire shaft, which is costly. Therefore, a lightweight ceramic shaft is proposed to address these issues. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a lightweight ceramic shaft.

[0006] The lightweight ceramic shaft provided by this utility model adopts the following technical solution:

[0007] A lightweight ceramic shaft includes a ceramic shaft body and two semi-circular plates. The ceramic shaft body includes a first semi-shaft and a second semi-shaft. A mesh layer is fixedly connected inside the ceramic shaft body, and an assembly mechanism is provided on the ceramic shaft body.

[0008] The assembly mechanism includes a first insert rod and a second insert rod. The first insert rod is fixedly connected to one end of the first half-shaft, and the second insert rod is fixedly connected to one end of the second half-shaft. Each end of the first half-shaft and the second half-shaft has a slot. The first insert rod and the second insert rod extend into the two slots and match the slots. One end of the first half-shaft and the second half-shaft are in contact with each other. The inner sides of the two semicircular plates are in contact with the outer sides of the first half-shaft and the second half-shaft.

[0009] By adopting the above technical solution, during the use of the ceramic shaft body, the set mesh layer can prevent the cracks from spreading rapidly to the inside when the outer side of the ceramic shaft body is broken. In addition, when the outer surface is damaged by bumps, the mesh layer can further prevent large-area detachment of the outer side of the ceramic shaft body, effectively improving its service life and strength. If the first half shaft or the second half shaft is severely damaged, the corresponding first half shaft or the second half shaft can be directly replaced, avoiding the situation in traditional integrated designs where the entire body needs to be replaced when a certain part is severely damaged, which leads to increased usage costs.

[0010] Preferably, the first insertion rod has a slot, the second insertion rod has an integrally formed strip, the strip extends into the slot and matches the slot, and the mesh layer is woven from steel wire.

[0011] By adopting the above technical solution, the stability of the connection between the first and second insert rods can be improved after the card strip is inserted into the card slot.

[0012] Preferably, the two semicircular plates are fitted together, and the first half-shaft, the second half-shaft, the first insert rod, and the second insert rod are all provided with round holes. The outer side of the semicircular plate is provided with a groove, and a bolt rod is provided on one side of the semicircular plate.

[0013] By adopting the above technical solution, after the bolt is screwed in, the semicircular plate is fixed to the outside of the first and second half shafts.

[0014] Preferably, the bolt rod passes through the groove and the round hole in sequence, the bolt rod is connected to the inside of the round hole by a thread, and a nut is integrally formed on the bolt rod, the nut is set inside the groove and matches the groove.

[0015] By adopting the above technical solution, the nut is placed inside the round hole, avoiding the impact on subsequent use due to the nut protruding.

[0016] Preferably, the first half-shaft, the second half-shaft, the first insert rod, and the second insert rod are all provided with first positioning holes, and the first half-shaft and the second half-shaft are also provided with second positioning holes. The semi-circular plate is integrally formed with two first positioning rods and four second positioning rods.

[0017] By adopting the above technical solution, the semicircular plate is used to fix the first and second half-shafts after splicing.

[0018] Preferably, the first positioning rod extends into the first positioning hole and matches the first positioning hole, and the second positioning rod extends into the second positioning hole and matches the second positioning hole.

[0019] By adopting the above technical solution, the first positioning rod and the second positioning rod can prevent the first half-shaft and the second half-shaft from separating.

[0020] Preferably, the second positioning hole is disposed on the upper and lower sides of the first positioning hole, and the second positioning rod is disposed on the upper and lower sides of the first positioning rod.

[0021] In summary, this utility model has the following beneficial technical effects:

[0022] A lightweight ceramic shaft, through the design of its assembly mechanism, features a mesh layer that prevents cracks from rapidly spreading to the interior when the outer surface of the ceramic shaft breaks. Furthermore, the mesh layer further prevents large-scale detachment of the outer surface of the ceramic shaft when it is damaged by impacts, effectively improving its service life and strength. If the first or second half-shaft is severely damaged, only the corresponding half-shaft needs to be replaced, avoiding the increased operating costs associated with traditional integrated designs where severe damage in one area necessitates replacement of the entire shaft.

[0023] A lightweight ceramic shaft allows for easy removal by unscrewing the bolt rod. Subsequently, the semicircular plate can be pulled out along the horizontal direction of the first and second positioning rods. After the semicircular plate is removed, the first and second half shafts can be separated by pulling them to both sides. The entire assembly and disassembly process is simple and convenient, allowing users to quickly get started and operate the shaft. It has high practicality and flexibility. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a structural diagram of the first and second half-shafts after disassembly in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0027] Figure 4 This is a schematic diagram of the structure of the first half-shaft in this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the second half-shaft in this utility model;

[0029] Figure 6 This is a cross-sectional view of the main body of the ceramic shaft in this utility model;

[0030] Figure 7 for Figure 6 Enlarged view of point B in the image.

[0031] Explanation of reference numerals in the attached drawings: 1. Ceramic shaft body; 11. First half-shaft; 12. Second half-shaft; 2. Mesh layer; 3. Assembly mechanism; 31. First insertion rod; 32. Second insertion rod; 33. Slot; 34. Semicircular plate; 35. Slot; 36. Locking strip; 37. Round hole; 38. Groove; 39. Bolt rod; 391. Nut; 392. First positioning hole; 393. Second positioning hole; 394. First positioning rod; 395. Second positioning rod. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 The present invention will be described in further detail below.

[0033] This utility model discloses a lightweight ceramic shaft. (Refer to...) Figures 1-7 It includes a ceramic shaft body 1 and two semi-circular plates 34. The ceramic shaft body 1 includes a first semi-shaft 11 and a second semi-shaft 12. A mesh layer 2 is fixedly connected inside the ceramic shaft body 1. An assembly mechanism 3 is provided on the ceramic shaft body 1.

[0034] The assembly mechanism 3 includes a first insert rod 31 and a second insert rod 32. The first insert rod 31 is fixedly connected to one end of the first half shaft 11, and the second insert rod 32 is fixedly connected to one end of the second half shaft 12. Each half shaft 11 and the second half shaft 12 has a slot 33. The first insert rod 31 and the second insert rod 32 extend into the two slots 33 respectively and match the slots 33.

[0035] One end of the first half-shaft 11 and one end of the second half-shaft 12 are attached together, and the inner sides of the two semi-circular plates 34 are attached to the outer sides of the first half-shaft 11 and the second half-shaft 12. During the use of the ceramic shaft body 1, the mesh layer 2 can prevent the cracks from spreading rapidly to the inside when the outer side of the ceramic shaft body 1 is broken. In addition, when the outer surface is damaged, the mesh layer 2 can further prevent large-area detachment of the outer side of the ceramic shaft body 1, effectively improving its service life and strength. If the first half-shaft 11 or the second half-shaft 12 is severely damaged, the corresponding first half-shaft 11 or second half-shaft 12 can be directly replaced, avoiding the situation where the entire body needs to be replaced when a certain part is severely damaged, which would increase the cost of use.

[0036] The first insert rod 31 has a slot 35, and the second insert rod 32 has an integrally formed retaining strip 36. The retaining strip 36 extends into the slot 35 and matches the slot 35. The mesh layer 2 is woven from steel wire. After the retaining strip 36 is inserted into the slot 35, it can improve the stability of the connection between the first insert rod 31 and the second insert rod 32. The two semicircular plates 34 are fitted together. The first half shaft 11, the second half shaft 12, the first insert rod 31 and the second insert rod 32 are all provided with round holes 37. The outer side of the semicircular plate 34 is provided with a groove 38. A bolt rod 39 is provided on one side of the semicircular plate 34. After the bolt rod 39 is screwed in, the semicircular plate 34 is fixed to the outer side of the first half shaft 11 and the second half shaft 12.

[0037] The bolt rod 39 passes through the groove 38 and the round hole 37 in sequence. The bolt rod 39 is connected to the inside of the round hole 37 by threads. The bolt rod 39 has an integrally formed nut 391. The nut 391 is set inside the groove 38 and matches the groove 38. The nut 391 is set inside the round hole 37 to avoid the nut 391 protruding and affecting subsequent use.

[0038] First positioning holes 392 are provided on the first half-shaft 11, the second half-shaft 12, the first insertion rod 31, and the second insertion rod 32. Second positioning holes 393 are also provided on the first half-shaft 11 and the second half-shaft 12. Two first positioning rods 394 and four second positioning rods 395 are integrally formed on the semi-circular plate 34. The semi-circular plate 34 fixes the first half-shaft 11 and the second half-shaft 12 after splicing. The first positioning rods 394 extend into the first positioning holes 392 and match the first positioning holes 392. The second positioning rods 395 extend into the second positioning holes 393 and match the second positioning holes 393. The first positioning rods 394 and the second positioning rods 395 can prevent the first half-shaft 11 and the second half-shaft 12 from separating. The second positioning holes 393 are provided on the upper and lower sides of the first positioning holes 392, and the second positioning rods 395 are provided on the upper and lower sides of the first positioning rods 394.

[0039] In actual operation, when this device is used, the mesh layer 2 can prevent the cracks from spreading rapidly to the inside when the outer side of the ceramic shaft body 1 is broken. In addition, when the outer surface is damaged by bumps, the mesh layer 2 can further prevent large-area detachment of the outer side of the ceramic shaft body 1, effectively improving its service life and strength.

[0040] If the first half-shaft 11 or the second half-shaft 12 is severely damaged, the corresponding half-shaft 11 or the second half-shaft 12 can be directly replaced. This avoids the situation in traditional integrated designs where the entire unit needs to be replaced when a part is severely damaged, which would increase the cost of use. Specifically, during the replacement operation, simply loosen the bolt rod 39 and remove it. Then, the semicircular plate 34 can be pulled out along the horizontal direction of the first positioning rod 394 and the second positioning rod 395. After the semicircular plate 34 is removed, the first half-shaft 11 and the second half-shaft 12 are... The two parts can be separated by pulling on both sides. Similarly, during installation, align the retaining strip 36 on the second insert rod 32 with the retaining groove 35 on the first insert rod 31 and insert it until the first half shaft 11 and the second half shaft 12 are in contact. Then, align the first positioning rod 394 and the second positioning rod 395 on the cover plate with the first positioning hole 392 and the second positioning hole 393 respectively and insert them. Finally, screw the bolt rod 39 into the round hole 37 to complete the assembly process. The entire assembly and disassembly process is simple and convenient, which is conducive to users quickly getting started.

[0041] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A lightweight ceramic shaft, characterized in that: It includes a ceramic shaft body (1) and two semi-circular plates (34). The ceramic shaft body (1) includes a first semi-shaft (11) and a second semi-shaft (12). A mesh layer (2) is fixedly connected inside the ceramic shaft body (1). An assembly mechanism (3) is provided on the ceramic shaft body (1). The assembly mechanism (3) includes a first insert (31) and a second insert (32). The first insert (31) is fixedly connected to one end of the first half-shaft (11), and the second insert (32) is fixedly connected to one end of the second half-shaft (12). Each of the first half-shaft (11) and the second half-shaft (12) has a slot (33) at one end. The first insert (31) and the second insert (32) extend into the two slots (33) respectively and match the slots (33). One end of the first half-shaft (11) and one end of the second half-shaft (12) are in contact with each other. The inner sides of the two semicircular plates (34) are in contact with the outer sides of the first half-shaft (11) and the second half-shaft (12).

2. The lightweight ceramic shaft according to claim 1, characterized in that: The first insert (31) has a slot (35), and the second insert (32) has an integrally formed strip (36). The strip (36) extends into the slot (35) and matches the slot (35). The mesh layer (2) is woven from steel wire.

3. The lightweight ceramic shaft according to claim 1, characterized in that: The two semicircular plates (34) are fitted together. The first half shaft (11), the second half shaft (12), the first insert rod (31) and the second insert rod (32) are all provided with round holes (37). The outer side of the semicircular plate (34) is provided with a groove (38). A bolt rod (39) is provided on one side of the semicircular plate (34).

4. A lightweight ceramic shaft according to claim 3, characterized in that: The bolt rod (39) passes through the groove (38) and the round hole (37) in sequence. The bolt rod (39) is connected to the inner side of the round hole (37) by a thread. A nut (391) is integrally formed on the bolt rod (39). The nut (391) is set inside the groove (38) and matches the groove (38).

5. A lightweight ceramic shaft according to claim 1, characterized in that: The first half-shaft (11), the second half-shaft (12), the first insert (31) and the second insert (32) are all provided with first positioning holes (392), and the first half-shaft (11) and the second half-shaft (12) are also provided with second positioning holes (393). The semi-circular plate (34) is integrally formed with two first positioning rods (394) and four second positioning rods (395).

6. A lightweight ceramic shaft according to claim 5, characterized in that: The first positioning rod (394) extends into the first positioning hole (392) and matches the first positioning hole (392), and the second positioning rod (395) extends into the second positioning hole (393) and matches the second positioning hole (393).

7. A lightweight ceramic shaft according to claim 5, characterized in that: The second positioning hole (393) is disposed on the upper and lower sides of the first positioning hole (392), and the second positioning rod (395) is disposed on the upper and lower sides of the first positioning rod (394).

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