A granular damper for a hollow shaft

Abstract

The present application relates to the technical field of damping and shock absorption, and discloses a granular damper for a hollow shaft, which comprises a shaft body, the top and bottom of the outer wall of the shaft body are respectively provided with a first placing cylinder and a second placing cylinder, the inner cavities of the first placing cylinder and the second placing cylinder are all provided with four granular placing bins, the inner cavities of the first placing cylinder and the second placing cylinder are all provided with a plurality of buffer granules, and the two ends of the first placing cylinder and the second placing cylinder are both provided with embedding grooves. Through the cooperation of the baffle and the rubber plug sheet, the buffer granules are blocked by the rubber plug sheet, when the buffer granules are static, the buffer granules will accumulate to the lowest parts on both sides, at this time, the baffle blocks the buffer granules, and the workers take out the buffer granules through the taking holes to detect, thereby solving the problems that the existing granular damper needs to be disassembled and checked when overhauled, and if not disassembled and checked, the granules will flow out after the sealing cover is opened.

Description

Technical Field

[0001] The invention relates to the technical field of damping and vibration reduction, in particular to a particle damper for a hollow shaft. Background Art

[0002] The pursuit of comfort has led to a continuous pursuit of noise research. Vibration is the primary cause of noise, and noise control ultimately hinges on vibration control. Shafts, as crucial components for transmitting torque and torsion, are subject to constraints imposed by performance and complex structures, leading to unbalanced forces and unavoidable vibration. To address this issue, a particle damper with a viscoelastic coating for hollow shafts was proposed.

[0003] After long-term use, the existing particle damper needs to have its internal particles inspected. When the coating on the surface of the particles is worn out, it needs to be replaced. During maintenance, the entire damper needs to be disassembled for inspection. If it is not disassembled for inspection, the particles will flow out after the sealing cover is opened. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a particle damper for a hollow shaft, which has the advantages of strong practicality and good stability, and solves the problems raised by the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a particle damper for a hollow shaft, comprising a shaft body, wherein a first placement tube and a second placement tube are respectively provided at the top and bottom of the outer wall of the shaft body, the inner cavities of the first placement tube and the second placement tube are both provided with four particle placement bins, the inner cavities of the first placement tube and the second placement tube are both provided with a plurality of buffer particles, an embedding groove is provided at both ends of the first placement tube and the second placement tube, a baffle is installed on the inner wall of the embedding groove, a taking hole is provided on the outer edge of the baffle, and there are four taking holes in total, and the shape of the taking hole is set according to the static accumulation shape of the buffer particles. A threaded hole is provided on the outer edge of the embedding groove and the outer edge of the baffle, and a fixed threaded rod is threadedly connected to the inner wall of the threaded hole. An outer baffle is provided on the outer edge of both ends of the first placement tube and the second placement tube, and a rubber blocking piece is installed on the outer edge of the outer baffle.

[0006] As a preferred technical solution of the present invention, a clamping groove is provided on the outside of the shaft body, and a clamping block is provided on the inner wall of the first placement tube and the second placement tube.

[0007] As a preferred technical solution of the present invention, vertical holes are provided at the tops of both sides of the first placement tube and the second placement tube, a hexagonal screw passes through the inner cavity of the vertical hole, and a hexagonal nut is threadedly connected to the outer edge of the hexagonal screw.

[0008] As a preferred technical solution of the present invention, the inner walls of the first placement tube and the second placement tube are both provided with connecting grooves, the inner walls of the connecting grooves are clamped with connecting blocks, the outer edges of the connecting blocks are installed on the outer edge of the baffle, and the outer edges of the baffle, the first placement tube and the second placement tube are all provided with fixing holes, and the inner walls of the fixing holes are threadedly connected with fixing screws.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The particle damper for the hollow shaft uses a baffle and a rubber plugging piece to block the buffer particles. When the buffer particles are stationary, the buffer particles will accumulate at the lowest point on both sides. At this time, the baffle blocks the buffer particles, and the staff takes out the buffer particles through the taking hole for inspection, thereby solving the problem that the existing particle damper needs to be disassembled for inspection during maintenance. If it is not disassembled for inspection, the particles will flow out after the sealing cover is opened.

[0011] 2. The particle damper for the hollow shaft, through the setting of the first placement tube and the second placement tube, assembles the first placement tube and the second placement tube on the shaft body, so that the first placement tube and the second placement tube can be removed from the shaft body, which is convenient for replacing the buffer particles inside the first placement tube and the second placement tube, thereby solving the problem of the existing particle damper that when replacing the internal buffer particles, the entire hollow shaft needs to be removed, thereby increasing the maintenance time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the expanded structure of the baffle of the present invention;

[0015] Figure 4 This is a schematic diagram of the expanded structure of the baffle of the present invention;

[0016] Figure 5 This is a schematic diagram of the connection structure between the connecting block and the baffle of the present invention;

[0017] Figure 6 This is a schematic diagram of the hole structure of the present invention.

[0018] In the figure: 1. shaft; 2. first placement tube; 3. second placement tube; 4. placement bin; 5. vertical hole; 51. hexagonal screw; 52. hexagonal nut; 6. buffer particles; 7. slot; 8. block; 9. embedding slot; 10. baffle; 11. taking hole; 12. threaded hole; 13. fixed threaded rod; 14. connecting slot; 15. connecting block; 16. baffle; 17. fixing hole; 18. fixing screw; 19. rubber blocking piece. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-6 A particle damper for a hollow shaft comprises a shaft body 1, a first placement tube 2 and a second placement tube 3 are respectively provided at the top and bottom of the outer wall of the shaft body 1, the inner cavities of the first placement tube 2 and the second placement tube 3 are both provided with four particle placement bins 4, the inner cavities of the first placement tube 2 and the second placement tube 3 are both provided with a plurality of buffer particles 6, both ends of the first placement tube 2 and the second placement tube 3 are provided with an embedding groove 9, the inner wall of the embedding groove 9 is installed with a baffle 10, the outer edges of both ends of the first placement tube 2 and the second placement tube 3 are both provided with a baffle 16, the outer edge of the baffle 16 is installed with a rubber blocking piece 19, the design of the first placement tube 2 and the second placement tube 3 makes it possible for the first placement tube 2 and the second placement tube 3 to store the buffer particles 6, so that the buffer particles 6 can be stored in the long Over time, the coating on the surface of the buffer particles 6 will be worn, resulting in poor buffering effect of the buffer particles 6, so that the first placement tube 2 and the second placement tube 3 can be removed from the shaft body 1 without disassembling the shaft body 1 to replace the buffer particles 6 inside the first placement tube 2 and the second placement tube 3, thereby improving the convenience of the device. The design of the baffle 16 and the rubber blocking piece 19 prevents the buffer particles 6 from flying out when the first placement tube 2 and the second placement tube 3 are rotating, and the rubber blocking piece 19 blocks the buffer particles 6 when the first placement tube 2 and the second placement tube 3 are in a stationary state. When the baffle 16 and the rubber blocking piece 19 are removed, the buffer particles 6 will not flow out over the baffle 10, which facilitates the maintenance personnel to inspect the buffer particles 6.

[0021] In a preferred embodiment, a slot 7 is provided on the outside of the shaft body 1, and a block 8 is provided on the inner walls of the first placement tube 2 and the second placement tube 3. By using the slot 7 and the block 8 in combination, the first placement tube 2 and the second placement tube 3 can be fixed on the shaft body 1, so that the first placement tube 2 and the second placement tube 3 rotate with the shaft body 1.

[0022] In a preferred embodiment, vertical holes 5 are provided at the tops of both sides of the first placing tube 2 and the second placing tube 3, and a hexagonal screw 51 is passed through the inner cavity of the vertical hole 5. The outer edge of the hexagonal screw 51 is threadedly connected to a hexagonal nut 52, and the first placing tube 2 and the second placing tube 3 are fixed by the hexagonal screw 51 and the hexagonal nut 52, so that the first placing tube 2 and the second placing tube 3 are easy to disassemble, and the buffer particles 6 inside the first placing tube 2 and the second placing tube 3 are easy to take out and pour in.

[0023] In a preferred embodiment, a taking hole 11 is provided on the outer edge of the baffle 10, and there are four taking holes 11 in total. The shape of the taking holes 11 is set according to the static accumulation shape of the buffer particles 6. The design of the baffle 10 allows the baffle 10 to block the outflow of the buffer particles 6. At the same time, the taking holes 11 make it convenient for maintenance personnel to take out the buffer particles 6 through the taking holes 11 to determine whether they need to be replaced.

[0024] In a preferred embodiment, threaded holes 12 are provided on the outer edges of the embedding groove 9 and the outer edges of the baffle 10, and the inner walls of the threaded holes 12 are threadedly connected with fixed threaded rods 13. The baffle 10 is fixed in the inner cavities of the first placement tube 2 and the second placement tube 3 through the fixed threaded rods 13, so that the baffle 10 can be disassembled, making it more convenient to replace the buffer particles 6, and making it easier to clean the buffer particles 6 in the inner cavities of the first placement tube 2 and the second placement tube 3.

[0025] In a preferred embodiment, the inner walls of the first placement tube 2 and the second placement tube 3 are both provided with a connecting groove 14, and the inner wall of the connecting groove 14 is clamped with a connecting block 15, and the outer edge of the connecting block 15 is installed on the outer edge of the baffle 16. The outer edges of the baffle 16, the first placement tube 2 and the second placement tube 3 are all provided with a fixing hole 17, and the inner wall of the fixing hole 17 is threadedly connected with a fixing screw 18. By using the connection groove 14 and the connecting block 15 in combination, the connecting block 15 is clamped into the connecting groove 14, and then the baffle 16 is fixed to the first placement tube 2 and the second placement tube 3 by the fixing screw 18, so that the first placement tube 2 and the second placement tube 3 are closed, so that the buffer particles 6 in the first placement tube 2 and the second placement tube 3 will not fall out, which is convenient for inspecting and repairing the buffer particles 6.

[0026] The working principle is that in use, a proper amount of buffer particles 6 is filled into the inner cavities of the first placing cylinder 2 and the second placing cylinder 3, the baffle 10 is placed in the embedding groove 9 on the first placing cylinder 2 and the second placing cylinder 3, the baffle 10 is fixed on the first placing cylinder 2 and the second placing cylinder 3 through the fixed threaded rod 13, the connecting block 15 on the baffle 16 is clamped into the connecting groove 14, the baffle 16 and the connecting block 15 are rotated clockwise, when the fixed hole 17 on the baffle 16 corresponds to the fixed hole 17 on the first placing cylinder 2, the baffle 16 is fixed on the first placing cylinder 2 through the fixed screw rod 18, the second placing cylinder 3 is installed in the same way as the first placing cylinder 2, the first placing cylinder 2 and the second placing cylinder 3 are placed on the shaft body 1, the clamping block 8 on the first placing cylinder 2 and the second placing cylinder 3 is aligned with the clamping groove 7 on the shaft body 1, then the first placing cylinder 2 and the second placing cylinder 3 are fixed through the hexagonal screw rod 51 and the hexagonal nut 52, at this time, the first placing cylinder 2 and the second placing cylinder 3 are installed.

[0027] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application being defined by the appended claims and their equivalents.

Claims

1. A particle damper for a hollow shaft, comprising a shaft body (1), characterized in that: The top and bottom of the outer wall of the shaft body (1) are respectively provided with a first placement tube (2) and a second placement tube (3); the inner cavities of the first placement tube (2) and the second placement tube (3) are both provided with four particle placement bins (4); the inner cavities of the first placement tube (2) and the second placement tube (3) are both provided with a plurality of buffer particles (6); both ends of the first placement tube (2) and the second placement tube (3) are provided with an embedding groove (9); the inner wall of the embedding groove (9) is provided with a baffle (10); the outer edge of the baffle (10) is provided with a plurality of buffer particles (6); A taking hole (11) is provided, and there are four taking holes (11) in total. The shape of the taking hole (11) is set according to the static accumulation shape of the buffer particles (6). The outer edge of the embedding groove (9) and the outer edge of the baffle (10) are both provided with a threaded hole (12). The inner wall of the threaded hole (12) is threadedly connected to a fixed threaded rod (13). The outer edges of both ends of the first placement tube (2) and the second placement tube (3) are both provided with a baffle (16), and the outer edge of the baffle (16) is installed with a rubber blocking piece (19).

2. The particle damper for a hollow shaft according to claim 1, characterized in that: A clamping groove (7) is provided on the outer edge of the shaft body (1), and a clamping block (8) is provided on the inner walls of the first placement tube (2) and the second placement tube (3).

3. The particle damper for a hollow shaft according to claim 1, characterized in that: The tops of both sides of the first placement tube (2) and the second placement tube (3) are provided with vertical holes (5), the inner cavities of the vertical holes (5) are penetrated by hexagonal screws (51), and the outer edges of the hexagonal screws (51) are threadedly connected to hexagonal nuts (52).

4. The particle damper for a hollow shaft according to claim 1, characterized in that: The inner walls of the first placement tube (2) and the second placement tube (3) are both provided with a connecting groove (14), the inner wall of the connecting groove (14) is clamped with a connecting block (15), the outer edge of the connecting block (15) is mounted on the outer edge of the baffle (16), the outer edges of the baffle (16), the first placement tube (2) and the second placement tube (3) are all provided with a fixing hole (17), the inner wall of the fixing hole (17) is threadedly connected with a fixing screw (18).

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