Supporting shaft convenient to replace

Abstract

The utility model discloses a support shaft convenient to replace, which comprises a shaft body, two ends of the shaft body are provided with support flanges, the center of each support flange is provided with a support table, two ends of the shaft body abut against the end face of the support table, the outer side of the support table is provided with support ring plates at intervals, and telescopic ring plates are arranged between the support table and the support ring plates. The telescopic ring plate extends out of the end faces of the supporting table and the supporting ring plate, and a spring is arranged between the bottom face of the telescopic ring plate and the supporting flange. According to the supporting shaft, the telescopic ring plates are arranged on the two sides of the shaft body, when the shaft body needs to be replaced, the external thread fixing pipes are screwed off, the telescopic ring plates on the two sides are pressed downwards, and then the shaft body can be taken down, and when a new shaft body is installed, the telescopic ring plates on the two sides are pressed downwards, and the shaft body with the two ends sleeved with the external thread fixing pipes abuts against the end face of the supporting table. And then the telescopic ring plate is loosened, and the external thread fixing pipe is tightened. The whole process does not need to disassemble the supporting flange, independent and rapid replacement of the shaft body is achieved, and operation is easy, convenient and efficient.

Description

Technical Field

[0001] This utility model relates to a support shaft that is easy to replace. Background Technology

[0002] In various types of machinery, industrial equipment, and numerous systems requiring stable support and transmission, structural units composed of support shafts and support bases play an indispensable role. Together, they bear the weight of the equipment and ensure the stability and reliability of the system during operation.

[0003] Traditional support shafts are typically tightly connected to support bases, forming a relatively fixed integral structure. While this connection method ensures structural stability to a certain extent, it brings significant inconvenience when the support shaft needs to be replaced. When the support shaft wears out, is damaged, or needs to be replaced according to actual working conditions, the entire support base must be disassembled from the equipment. This process involves disassembling multiple connection points, and the operation steps are numerous and complex. Utility Model Content

[0004] The main objective of this invention is to provide a support shaft that is easy to replace, in order to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A replaceable support shaft includes a shaft body with support flanges at both ends. A support platform is located at the center of the support flanges. Both ends of the shaft body abut against the end faces of the support platform. Support ring plates are spaced apart on the outer side of the support platform. A telescopic ring plate is provided between the support platform and the support ring plates, extending beyond the end faces of the support platform and the support ring plates. A spring is provided between the bottom surface of the telescopic ring plate and the support flanges. An internal thread is provided on the inner wall of the telescopic ring plate. An external threaded fixing tube is provided between the shaft body and the inner wall of the telescopic ring plate.

[0007] Preferably, a horizontal plate is provided on the bottom surface of the inner wall of the telescopic ring plate, an anti-rotation column is provided above the center of the horizontal plate, a horizontal plate moving groove is provided on the support platform, an anti-rotation column moving groove is provided above the horizontal plate moving groove, and anti-rotation grooves are provided at both ends of the shaft.

[0008] Preferably, the bottom surface of the support ring plate is provided with an annular groove, and the two ends of the spring are respectively connected to the support flange and the bottom surface of the annular groove.

[0009] Preferably, four springs are provided, and the four springs are evenly distributed along the circumference of the telescopic ring plate between the bottom surface of the telescopic ring plate and the support flange.

[0010] Preferably, a telescopic rod is provided between the bottom surface of the telescopic ring plate and the supporting flange.

[0011] Preferably, a guide strip is provided on the outer wall of the telescopic ring plate along its height direction, and a guide groove is provided on the inner wall of the support ring plate along its height direction.

[0012] Preferably, the end face of the externally threaded fixing tube is provided with a hexagonal end plate.

[0013] Preferably, a left protective half-shell and a right protective half-shell are provided on the outer side of the support ring plate and the telescopic ring plate, the left protective half-shell is provided with a left end plate half-groove, and the right protective half-shell is provided with a right end plate half-groove.

[0014] The beneficial technical effects of this utility model are as follows:

[0015] The support shaft provided by this utility model features telescopic ring plates on both sides of the shaft body. When the shaft body needs to be replaced, the external threaded fixing tube is unscrewed, and the telescopic ring plates on both sides are pressed down to remove the shaft body. When installing a new shaft body, the telescopic ring plates on both sides are pressed down, and the shaft body with external threaded fixing tubes at both ends is placed against the end face of the support platform. Then, the telescopic ring plates are loosened, and the external threaded fixing tubes are tightened. The entire process does not require disassembling the support flange, achieving independent and quick replacement of the shaft body. The operation is simple and efficient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the support shaft structure according to an embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional view of the support shaft of an embodiment of the present invention;

[0018] Figure 3 This is an exploded view of the support shaft structure according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the supporting flange structure according to an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the telescopic ring plate structure of an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the left and right protective half-shells of an embodiment of the present invention.

[0022] In the diagram: 1. Shaft; 2. Support flange; 3. Support platform; 4. Support ring plate; 5. Telescopic ring plate; 6. Spring; 7. External threaded fixing pipe; 8. Horizontal plate; 9. Anti-rotation column; 10. Horizontal plate moving groove; 11. Anti-rotation column moving groove; 12. Anti-rotation groove; 13. Ring groove; 14. Telescopic rod; 15. Guide bar; 16. Guide groove; 17. Hexagonal end plate; 18. Left protective half shell; 19. Right protective half shell; 20. Left end plate half groove; 21. Right end plate half groove. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-6 As shown, the easily replaceable support shaft provided in this embodiment includes a shaft body 1, with support flanges 2 at both ends of the shaft body 1, and a support platform 3 at the center of the support flanges 2. The two ends of the shaft body 1 abut against the end faces of the support platform 3. Support ring plates 4 are spaced apart on the outer side of the support platform 3. A telescopic ring plate 5 is provided between the support platform 3 and the support ring plate 4. The telescopic ring plate 5 extends beyond the end faces of the support platform 3 and the support ring plate 4. A spring 6 is provided between the bottom surface of the telescopic ring plate 5 and the support flange 2. An internal thread is provided on the inner wall of the telescopic ring plate 5. An external threaded fixing tube 7 is provided between the inner wall of the shaft body 1 and the inner wall of the telescopic ring plate 5.

[0025] During installation, fix the two side support flanges 2 in the required positions. First, fit the external threaded fixing tube 7 onto both ends of the shaft 1. Press down the two side telescopic ring plates 5 to press the two ends of the shaft 1 against the end face of the support platform 3. Control the length of the shaft 1 so that it can accurately contact the two side support platforms 3 and not move axially. Then, release the telescopic ring plates 5 so that they spring back and surround the two ends of the shaft 1. Finally, tighten the external threaded fixing tube 7. For disassembly, simply reverse the above steps. The entire process does not require disassembling the support flanges 2, enabling independent and quick replacement of the shaft 1. The operation is simple and efficient.

[0026] In this embodiment, as Figure 4 and Figure 5 As shown, a horizontal plate 8 is provided on the bottom surface of the inner wall of the telescopic ring plate 5, and an anti-rotation column 9 is provided above the center of the horizontal plate 8. A horizontal plate moving groove 10 is provided on the support platform 3, and an anti-rotation column moving groove 11 is provided above the horizontal plate moving groove 10. Anti-rotation grooves 12 are provided at both ends of the shaft body 1. The anti-rotation column 9 is a hexagonal prism structure. When the telescopic ring plate 5 is pressed down, the anti-rotation column 9 moves down with the telescopic ring plate 5. After the shaft body 1 is initially installed, when the telescopic ring plate 5 is released, the anti-rotation column 9 rebounds with the telescopic ring plate 5 and inserts into the anti-rotation groove 12 to prevent the shaft body 1 from rotating.

[0027] In this embodiment, as Figure 4 As shown, the bottom surface of the support ring plate 4 is provided with an annular groove 13. The two ends of the spring 6 are respectively connected to the support flange 2 and the bottom surface of the annular groove 13, which increases the space for the spring 6 and allows for the use of a longer spring 6, making it easier to press.

[0028] In this embodiment, as Figure 4 As shown, four springs 6 are provided. The four springs 6 are evenly distributed along the circumference of the telescopic ring plate 5 between the bottom surface of the telescopic ring plate 5 and the support flange 2, ensuring the rebound force and effectively absorbing external forces to provide a buffering effect.

[0029] In this embodiment, as Figure 4 As shown, a telescopic rod 14 is provided between the bottom surface of the telescopic ring plate 5 and the supporting flange 2 to enhance structural stability.

[0030] In this embodiment, as Figure 4 and Figure 5 As shown, a guide strip 15 is provided on the outer wall of the telescopic ring plate 5 along its height direction, and a guide groove 16 is provided on the inner wall of the support ring plate 4 along its height direction, to ensure that the telescopic ring plate 5 always maintains the correct direction during its up and down movement, and to avoid deviation or tilting.

[0031] In this embodiment, as Figure 1 As shown, the end face of the external threaded fixing tube 7 is provided with a hexagonal end plate 17, which makes it convenient for workers to use wrenches and other tools to tighten or disassemble.

[0032] In this embodiment, as Figure 6 As shown, a left protective half-shell 18 and a right protective half-shell 19 are provided on the outer side of the support ring plate 4 and the telescopic ring plate 5, which are fixed to the telescopic ring plate 5 by bolts to protect the overall structure. A left end plate half-groove 20 is provided on the left protective half-shell 18, and a right end plate half-groove 21 is provided on the right protective half-shell 19 to restrict the rotation of the external threaded fixing pipe 7 and prevent loosening.

[0033] In summary, in this embodiment, the support shaft provided has telescopic ring plates 5 on both sides of the shaft body 1. When the shaft body 1 needs to be replaced, the external threaded fixing tube 7 is unscrewed, and the telescopic ring plates 5 on both sides are pressed down to remove the shaft body 1. When installing a new shaft body 1, the telescopic ring plates 5 on both sides are pressed down, and the shaft body 1 with the external threaded fixing tubes 7 at both ends is placed against the end face of the support platform 3. Then, the telescopic ring plates 5 are loosened, and the external threaded fixing tubes 7 are tightened. The entire process does not require disassembling the support flange 2, realizing independent and quick replacement of the shaft body 1, which is simple and efficient.

[0034] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A replaceable support shaft, characterized in that: The device includes a shaft (1), with support flanges (2) at both ends. A support platform (3) is provided at the center of the support flanges (2). Both ends of the shaft (1) abut against the end faces of the support platform (3). Support ring plates (4) are provided at intervals on the outer side of the support platform (3). A telescopic ring plate (5) is provided between the support platform (3) and the support ring plate (4). The telescopic ring plate (5) extends beyond the end faces of the support platform (3) and the support ring plate (4). A spring (6) is provided between the bottom surface of the telescopic ring plate (5) and the support flange (2). An internal thread is provided on the inner wall of the telescopic ring plate (5). An external thread fixing pipe (7) is provided between the inner wall of the shaft (1) and the telescopic ring plate (5).

2. The easily replaceable support shaft according to claim 1, characterized in that: A horizontal plate (8) is provided on the bottom surface of the inner wall of the telescopic ring plate (5). An anti-rotation column (9) is provided above the center of the horizontal plate (8). A horizontal plate moving groove (10) is provided on the support platform (3). An anti-rotation column moving groove (11) is provided above the horizontal plate moving groove (10). Anti-rotation grooves (12) are provided at both ends of the shaft (1).

3. The easily replaceable support shaft according to claim 1, characterized in that: The bottom surface of the support ring plate (4) is provided with an annular groove (13), and the two ends of the spring (6) are respectively connected to the support flange (2) and the bottom surface of the annular groove (13).

4. The easily replaceable support shaft according to claim 1, characterized in that: Four springs (6) are provided, and the four springs (6) are evenly distributed along the circumference of the telescopic ring plate (5) between the bottom surface of the telescopic ring plate (5) and the support flange (2).

5. The easily replaceable support shaft according to claim 1, characterized in that: A telescopic rod (14) is provided between the bottom surface of the telescopic ring plate (5) and the supporting flange (2).

6. The easily replaceable support shaft according to claim 1, characterized in that: The telescopic ring plate (5) has a guide strip (15) on its outer wall along its height direction, and the support ring plate (4) has a guide groove (16) on its inner wall along its height direction.

7. The easily replaceable support shaft according to claim 1, characterized in that: The end face of the external threaded fixing tube (7) is provided with a hexagonal end plate (17).

8. The easily replaceable support shaft according to claim 7, characterized in that: The support ring plate (4) and the telescopic ring plate (5) are provided with a left protective half shell (18) and a right protective half shell (19). The left protective half shell (18) is provided with a left end plate half groove (20), and the right protective half shell (19) is provided with a right end plate half groove (21).

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