Stabilizing structure of rotating shaft

Abstract

The utility model discloses a stabilizing structure of a rotating shaft, and relates to the technical field of anti-vibration structures of rotating shafts. The stabilizing structure of the rotating shaft comprises a rotating shaft body, a box body and two protective shells, the rotating shaft body is connected with the box body through a silica gel soft sealing ring, the bottom of the box body is fixedly connected with a plurality of sets of mounting bases, the rotating shaft body penetrates through the protective shells and is in sliding connection with the protective shells, and the two protective shells are fixedly connected with the mounting bases. A connecting cover is arranged between the two protective shells, supporting mechanisms are arranged in the protective shells, and a buffering stabilizing mechanism is arranged in the box body. According to the stable structure of the rotating shaft, the rotating shaft body can generate vibration energy due to rotation during working, the vibration energy in the front-back direction is absorbed through a spring arranged in the first air pressure cabin, the vibration energy in the left-right direction is absorbed through a rubber air bag, and therefore buffering and damping protection is conducted on the rotating shaft body; and the working stability of the rotating shaft body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-vibration structures of rotating shafts, in particular to a stable structure of a rotating shaft. Background Art

[0002] Since the rotating shaft has a large rotation diameter and a long length, a special mechanical device is required to connect or disassemble the rotating shaft with the roller. In the field of mechanical processing, due to the influence of processing errors and assembly errors, the rotating shaft on the gear is prone to vibration, unstable rotation, and mechanical noise when rotating.

[0003] The current stable structure of the rotating shaft consists of three parts: support, lifting and buffer. This stable structure is only used to support the rotating shaft when the roller is disassembled. It cannot support the rotating shaft when the punching machine is working. Therefore, the rotating shaft vibrates greatly when working, which poses a safety hazard. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a stable structure of a rotating shaft, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a stable structure of a rotating shaft, including a rotating shaft body, a box body and a protective shell, the rotating shaft body passes through the side wall of the box body and has no contact with the box body, the rotating shaft body and the box body are connected by a silicone soft sealing ring, the bottom of the box body is fixedly connected to multiple groups of mounting bases, the rotating shaft body passes through the protective shell and is slidably connected to the protective shell, the number of the protective shells is two, a connecting cover is provided between the two protective shells, a supporting mechanism is provided inside the protective shell, and a buffer stabilization mechanism is provided inside the box body.

[0005] Preferably, the supporting mechanism includes a bearing inner ring, a ball and a bearing outer ring, the bearing outer ring is fixedly mounted on the inner wall of the protective shell, a bearing inner ring is arranged inside the bearing outer ring, the bearing outer ring is transmission-connected to the bearing inner ring through the ball, the central axis of the bearing inner ring and the central axis of the bearing outer ring are on the same straight line, and the bearing inner ring is sleeved on the outside of the rotating shaft body and fixedly connected to the rotating shaft body.

[0006] Preferably, there are multiple balls, and the balls are arranged in a ring shape with equal spacing between the inner ring of the bearing and the outer ring of the bearing.

[0007] Preferably, the support mechanism further comprises a keyway and a spline, the bearing inner ring is provided with a keyway, the circumferential surface of the rotating shaft body is fixedly connected with a spline matching the keyway, and the spline is installed in the bearing inner ring through the keyway.

[0008] Preferably, the buffer stabilization mechanism includes a first air pressure chamber and a second air pressure chamber, the first air pressure chamber is arranged inside the side panel of the box body, and the second air pressure chamber is arranged inside the side panel of the box body, the first air pressure chamber and the second air pressure chamber are connected by a pipeline, the inner and outer walls of the first air pressure chamber are penetrated by the piston and are slidably connected to the piston, one side of the piston is elastically connected to the interior of the first air pressure chamber by a spring, and the other side of the piston is located inside the box body, and a rubber airbag is arranged on the inner wall of the box body, and the rubber airbag is connected to the second air pressure chamber.

[0009] Preferably, the buffer stabilization mechanism further comprises a connecting block, and the connecting cover and the piston are fixedly connected via the connecting block.

[0010] The utility model provides a stable structure of a rotating shaft, which has the following beneficial effects:

[0011] (1) The rotating shaft has a stable structure. When the rotating shaft body is working, vibration energy is generated due to rotation. The spring arranged inside the first air pressure chamber absorbs the vibration energy in the front-to-back direction, and the rubber airbag absorbs the vibration energy in the left-to-right direction, thereby providing buffering and shock-absorbing protection for the rotating shaft body, thereby ensuring the stability of the rotating shaft body when working.

[0012] (2) The stable structure of the rotating shaft is achieved by providing a supporting mechanism to provide a supporting component when the rotating shaft body is working, thereby sharing part of the weight of the rotating shaft body and improving the stability and safety of the equipment; by providing splines and keyways, the connection between the rotating shaft body and the inner ring of the bearing is made more stable, reducing the possibility of slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the utility model as a whole;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the buffer shock absorbing mechanism of the utility model;

[0016] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the buffer and shock absorbing mechanism of the utility model;

[0017] Figure 5 It is a three-dimensional structural schematic diagram of some components of the utility model;

[0018] Figure 6 It is a schematic diagram of the three-dimensional exploded structure of some components of the utility model.

[0019] In the figure: 1. rotating shaft body; 2. box body; 3. mounting base; 4. protective shell; 5. connecting cover; 6. bearing outer ring; 7. bearing inner ring; 8. ball; 9. keyway; 10. spline; 11. first air pressure chamber; 12. second air pressure chamber; 13. piston; 14. spring; 15. rubber airbag; 16. silicone soft sealing ring; 17. pipeline; 18. connecting block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Embodiment 1

[0022] See also Figure 1-6 A stable structure of a rotating shaft comprises a rotating shaft body 1, a box body 2 and a protective shell 4. The rotating shaft body 1 penetrates the side wall of the box body 2 and has no contact with the box body 2. The rotating shaft body 1 is connected to the box body 2 through a silicone soft sealing ring 16. The bottom of the box body 2 is fixedly connected to multiple groups of mounting bases 3. The rotating shaft body 1 penetrates the protective shell 4 and is slidably connected to the protective shell 4. The number of protective shells 4 is two. A connecting cover 5 is arranged between the two protective shells 4. A supporting mechanism is arranged inside the protective shell 4. The supporting mechanism comprises a bearing inner ring 7, a ball 8 and a bearing outer ring 6. The bearing outer ring 6 is fixedly installed on the inner wall of the protective shell 4. The inner part of the bearing outer ring 6 is provided A bearing inner ring 7 is provided, and a bearing outer ring 6 is transmission-connected to the bearing inner ring 7 through balls 8. There are multiple balls 8, and the multiple balls 8 are arranged in a ring shape with equal intervals between the bearing inner ring 7 and the bearing outer ring 6. The central axis of the bearing inner ring 7 and the central axis of the bearing outer ring 6 are on the same straight line. They are sleeved on the outside of the rotating shaft body 1 and fixedly connected to the rotating shaft body 1. The supporting mechanism also includes a keyway 9 and a spline 10. The bearing inner ring 7 is provided with a keyway 9. The circumferential surface of the rotating shaft body 1 is fixedly connected with a spline 10 matching the keyway 9. The spline 10 is installed in the bearing inner ring 7 through the keyway 9. A buffer stabilization mechanism is provided inside the housing 2.

[0023] During use, when the rotating shaft body 1 is working, the bearing outer ring 6 and the protective shell 4 remain in a relatively stationary state, and the ball 8 is installed between the bearing inner ring 7 and the bearing outer ring 6, which plays a role in reducing friction and improving mechanical efficiency. The bearing outer ring 6 is fixedly connected to the rotating shaft body 1, so that when the bearing outer ring 6 rotates, the movement of the rotating shaft body 1 and the bearing outer ring 6 is consistent. By arranging a spline 10 and a keyway 9 between the rotating shaft body 1 and the bearing outer ring 6, the connection between the rotating shaft body 1 and the bearing outer ring 6 is made more stable, and the possibility of slipping is reduced; by arranging a sealing ring between the rotating shaft body 1 and the protective shell 4, dust and impurities are prevented from entering the ball 8 between the bearing outer ring 6 and the bearing inner ring 7, thereby reducing mechanical wear, improving the mechanical efficiency of the equipment, and increasing the overall practicality of the equipment.

[0024] Embodiment 2

[0025] See also Figure 1-6 On the basis of the first embodiment, the buffer stabilization mechanism includes a first air pressure chamber 11 and a second air pressure chamber 12. The first air pressure chamber 11 is arranged inside the side plate of the box body 2, and the second air pressure chamber 12 is arranged inside the side plate of the box body 2. The first air pressure chamber 11 and the second air pressure chamber 12 are connected through a pipe 17. The inner and outer walls of the first air pressure chamber 11 are penetrated by the piston 13 and are slidably connected with the piston 13. One side of the piston 13 is elastically connected to the inside of the first air pressure chamber 11 through a spring 14, and the other side of the piston 13 is located inside the box body 2. A rubber airbag 15 is arranged on the inner wall of the box body 2, and the rubber airbag 15 is connected to the second air pressure chamber 12. The buffer stabilization mechanism also includes a connecting block 18, and the connecting cover 5 and the piston 13 are fixedly connected through the connecting block 18.

[0026] On the basis of the first embodiment, the rotating shaft body 1 generates vibration energy due to rotation during operation, and the vibration energy generated by the rotating shaft body 1 is transmitted to the piston 13 through the connecting block 18 connected to the protective shell 4. Therefore, the vibration of the rotating shaft body 1 will push and squeeze the piston 13, so that the piston 13 overcomes the elastic force of the spring 14 and moves away from the protective shell 4. The movement of the piston 13 will squeeze the gas inside the first air pressure chamber 11, so that the pressure inside the first air pressure chamber 11 increases, and then the pressure inside the second air pressure chamber 12 connected to the first air pressure chamber 11 increases, so that the pressure inside the rubber airbag 15 connected to the second air pressure chamber 12 increases, so that the rubber airbag 15 expands and connects with the protective shell 4. The outer surface of the protective shell 4 is in contact with the rubber airbag 15, and the rubber airbag 15 applies a pre-tightening force to the outer surface of the protective shell 4, thereby increasing the friction between the rubber airbag 15 and the protective shell 4, thereby fixing the protective shell 4 more firmly inside the box body 2; when the rotating shaft body 1 generates vibration energy during operation, the vibration energy in the front and rear directions can be absorbed by the contraction of the spring 14, and the vibration energy in the left and right directions can be absorbed by the rubber airbag 15, thereby providing buffering and shock-absorbing protection for the rotating shaft body 1; in addition to the support provided by the working components connected to the two ends of the rotating shaft body 1, the box body 2 additionally provides protection and support for the rotating shaft body 1, thereby ensuring the stability of the rotating shaft body 1 during operation.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stable structure of a rotating shaft, comprising a rotating shaft body (1), a box body (2) and a protective shell (4), characterized in that: The rotating shaft body (1) passes through the side wall of the box body (2) and has no contact with the box body (2); the rotating shaft body (1) and the box body (2) are connected via a silicone soft sealing ring (16); a plurality of mounting bases (3) are fixedly connected to the bottom of the box body (2); the rotating shaft body (1) passes through the protective shell (4) and is slidably connected to the protective shell (4); the number of the protective shells (4) is two; a connecting cover (5) is provided between the two protective shells (4); a supporting mechanism is provided inside the protective shell (4); and a buffer stabilization mechanism is provided inside the box body (2).

2. A stabilizing structure of a rotating shaft according to claim 1, characterized in that: The support mechanism comprises a bearing inner ring (7), a ball (8) and a bearing outer ring (6); the bearing outer ring (6) is fixedly mounted on the inner wall of the protective shell (4); the bearing inner ring (7) is arranged inside the bearing outer ring (6); the bearing outer ring (6) is transmission-connected to the bearing inner ring (7) via the ball (8); the central axis of the bearing inner ring (7) and the central axis of the bearing outer ring (6) are on the same straight line; the bearing inner ring (7) is sleeved on the outside of the rotating shaft body (1) and is fixedly connected to the rotating shaft body (1).

3. A stabilizing structure of a rotating shaft according to claim 2, characterized in that: The number of the balls (8) is multiple, and the balls (8) are arranged in a ring shape at equal intervals between the bearing inner ring (7) and the bearing outer ring (6).

4. The stabilizing structure of a rotating shaft according to claim 3, characterized in that: The support mechanism also includes a keyway (9) and a spline (10); the bearing inner ring (7) is provided with a keyway (9); the circumferential surface of the rotating shaft body (1) is fixedly connected with a spline (10) matching the keyway (9); and the spline (10) is installed in the bearing inner ring (7) through the keyway (9).

5. A stabilizing structure of a rotating shaft according to claim 4, characterized in that: The buffer stabilization mechanism comprises a first air pressure chamber (11) and a second air pressure chamber (12); the first air pressure chamber (11) is arranged inside a side plate of a box body (2); the second air pressure chamber (12) is arranged inside a side plate of the box body (2); the first air pressure chamber (11) and the second air pressure chamber (12) are connected via a pipe (17); the inner and outer walls of the first air pressure chamber (11) are penetrated by a piston (13) and are slidably connected to the piston (13); one side of the piston (13) is elastically connected to the inside of the first air pressure chamber (11) via a spring (14); the other side of the piston (13) is located inside the box body (2); a rubber air bag (15) is arranged on the inner wall of the box body (2); the rubber air bag (15) is connected to the second air pressure chamber (12).

6. A stabilizing structure for a rotating shaft according to claim 5, characterized in that: The buffer stabilization mechanism also includes a connection block (18), and the connection cover (5) and the piston (13) are fixedly connected via the connection block (18).

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