A high-damping shaft device

Abstract

This utility model relates to the field of damping shaft technology, specifically to a strong damping shaft device. It includes a first rotating joint, a first shaft washer, a second shaft washer, and a second rotating joint. The first shaft washer is fixed to the first rotating joint; the second shaft washer is fixed to the second rotating joint. The surface of the first shaft washer has a first central hole and several locking holes; the locking holes are evenly distributed circumferentially around the first central hole. The surface of the second shaft washer has a second central hole and several first protrusions; the first protrusions are adapted to the locking holes, and the front end of the first protrusion has a hemispherical structure. This utility model utilizes the cooperation between the first protrusions and the locking holes to increase the friction between the first and second shaft washers, resulting in strong radial damping, enabling them to withstand larger torques, and preventing failure at different angles.

Description

Technical Field

[0001] This utility model relates to the field of damping shaft technology, specifically to a strong damping shaft device. Background Technology

[0002] Damped shafts, as a key technological component, play an indispensable role in modern technology. Their core principle lies in effectively controlling the shaft's rotational speed and stability through damping, thereby meeting the application requirements of various equipment.

[0003] The principle of a damping hinge mechanism is actually based on the friction generated by the compression between the pads. The magnitude of this friction depends on the material and number of the pads, as well as the magnitude of the compressive force. For example, a phone holder relies on the friction between the pads on the damping hinge mechanism to keep the phone in the desired position. In actual use, due to the simple structure of the damping hinge mechanism, it cannot withstand high torques, causing it to easily fail when the phone is stopped at a large angle. Utility Model Content

[0004] The purpose of this invention is to provide a strong damping shaft device that can withstand high torque, has good wear resistance, long service life, and is not prone to failure at different angles.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a strong damping rotating shaft device, comprising a first rotating joint, a first rotating shaft washer, a second rotating shaft washer, and a second rotating joint;

[0006] The first pivot washer is fixed to the first rotating joint; the second pivot washer is fixed to the second rotating joint;

[0007] The surface of the first rotating shaft washer is provided with a first central hole and several locking holes; the locking holes are evenly distributed in a circle with the first central hole as the center;

[0008] The surface of the second rotating shaft washer is provided with a second central hole and several first protrusions; the first protrusions are adapted to the locking holes, and the front end of the first protrusions is a hemispherical structure.

[0009] Furthermore, the surface of the second rotating joint is uniformly provided with several second protrusions distributed in a circular pattern; the surface of the first rotating joint is uniformly provided with several circular grooves distributed in a circular pattern, the circular grooves being interconnected and adapted to the second protrusions.

[0010] Furthermore, the diameter of the first center hole and the second center hole is 0.3 to 0.5 mm larger than the diameter of the shaft.

[0011] Furthermore, both the first and second shaft washers are circular washers made of manganese steel.

[0012] Furthermore, the surface of the first rotating shaft washer is provided with symmetrically arranged first stop ears; the surface of the second rotating shaft washer is provided with symmetrically arranged second stop ears; the first stop ears and the second stop ears are respectively adapted to the slots on the first rotating joint and the second rotating joint.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the first shaft washer and the second shaft washer are in close contact, the locking holes and the first protrusion fit together, and the cooperation between the multiple locking holes and the first protrusion increases the friction between the first shaft washer and the second shaft washer, so that they have strong damping in the radial direction and can withstand a large torque.

[0015] 2. When the first and second rotating shaft washers rotate relative to each other, the locking hole and the first protrusion can fit together at different positions, ensuring that the first and second rotating joints can withstand a large torque at different angles and are not prone to failure.

[0016] 3. The front end of the first protrusion is a hemispherical structure, which makes the first and second shaft washers rotate more smoothly and less likely to jam. Attached Figure Description

[0017] Figure 1 This is an exploded view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the first rotating shaft washer in Embodiment 1;

[0019] Figure 3 This is a schematic diagram of the structure of the second shaft washer in Embodiment 1;

[0020] Figure 4 This is a schematic diagram of the structure of the first rotating joint in Embodiment 2;

[0021] Figure 5 This is a schematic diagram of the structure of the second rotating joint in Embodiment 2.

[0022] Label Explanation:

[0023] 1. First rotating joint; 11. Second protrusion; 2. First pivot washer; 21. First center hole;

[0024] 22. Locking hole; 23. First stop lug; 3. Second shaft washer; 31. Second center hole;

[0025] 32. First protrusion; 33. Second stop; 4. Second rotating joint; 41. Circular groove. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figure 1 - Figure 3 As shown, the technical solution adopted by this utility model is: a strong damping rotating shaft device, including a first rotating joint 1, a first rotating shaft washer 2, a second rotating shaft washer 3 and a second rotating joint 4;

[0028] The first pivot washer 2 is fixed on the first rotating joint 1; the second pivot washer 3 is fixed on the second rotating joint 4;

[0029] The surface of the first rotating shaft washer 2 is provided with a first central hole 21 and several locking holes 22; the locking holes 22 are evenly distributed in a circle with the first central hole 21 as the center.

[0030] The surface of the second rotating shaft pad 3 is provided with a second central hole 31 and several first protrusions 32; the first protrusions 32 are adapted to the locking hole 22, and the front end of the first protrusions 32 is a hemispherical structure.

[0031] As described above, when the first pivot washer 2 and the second pivot washer 3 are in close contact, the locking holes 22 and the first protrusion 32 fit together, and the cooperation of multiple locking holes 22 and the first protrusion 32 increases the friction between the first pivot washer 2 and the second pivot washer 3, resulting in strong radial damping and the ability to withstand larger torques. When the first pivot washer 2 and the second pivot washer 3 rotate relative to each other, the locking holes 22 and the first protrusion 32 can fit together at different positions, ensuring that the first rotating joint 1 and the second rotating joint 4 can withstand larger torques at different angles and are less prone to failure. In addition, the front end of the first protrusion 32 has a hemispherical structure, which makes the relative rotation of the first pivot washer 2 and the second pivot washer 3 smoother and less prone to jamming.

[0032] Preferably, the diameter of the first central hole 21 and the second central hole 31 is 0.3 to 0.5 mm larger than the diameter of the rotating shaft.

[0033] As can be seen from the above description, the above settings enable a clearance fit between the first rotating shaft washer 2, the second rotating shaft washer 3 and the rotating shaft; since the first rotating shaft washer 2 and the second rotating shaft washer 3 are respectively fixed on the first rotating joint 1 and the second rotating joint 4, it can be ensured that the first rotating joint 1 and the second rotating joint 4 can rotate flexibly around the rotating shaft.

[0034] Preferably, both the first shaft washer 2 and the second shaft washer 3 are circular washers made of manganese steel.

[0035] As can be seen from the above description, by utilizing the properties of manganese steel, the first shaft gasket 2 and the second shaft gasket 3 have high wear resistance, further improving their service life.

[0036] Preferably, the surface of the first rotating shaft washer 2 is provided with symmetrically arranged first stop ears 23; the surface of the second rotating shaft washer 3 is provided with symmetrically arranged second stop ears 33; the first stop ears 23 and the second stop ears 33 are respectively adapted to the slots on the first rotating joint 1 and the second rotating joint 4.

[0037] As can be seen from the above description, by using the first stop ear 23 and the second stop ear 33, the first rotating shaft washer 2 and the second rotating shaft washer 3 are respectively fixed on the first rotating joint 1 and the second rotating joint 4, thereby ensuring that when rotating, the first rotating shaft washer 2 is relatively stationary with respect to the first rotating joint 1; and the second rotating shaft washer 3 is relatively stationary with respect to the second rotating joint 4.

[0038] Example 1

[0039] like Figure 1-3 As shown, the technical solution adopted in this embodiment is: a strong damping rotating shaft device, including a first rotating joint 1, a first rotating shaft washer 2, a second rotating shaft washer 3 and a second rotating joint 4;

[0040] Both the first shaft washer 2 and the second shaft washer 3 are circular washers made of manganese steel.

[0041] The surface of the first rotating shaft washer 2 is provided with a first central hole 21 and 20 locking holes 22; the locking holes 22 are evenly distributed in a circle with the first central hole 21 as the center.

[0042] The surface of the second rotating shaft washer 3 is provided with a second central hole 31 and 20 first protrusions 32; the first protrusions 32 are adapted to the locking holes 22, and the front end of the first protrusions 32 is a hemispherical structure;

[0043] The diameter of the first central hole 21 and the second central hole 31 is 0.3 to 0.5 mm larger than the diameter of the rotating shaft;

[0044] The surface of the first rotating shaft washer 2 is provided with symmetrically arranged first stop ears 23; the surface of the second rotating shaft washer 3 is provided with symmetrically arranged second stop ears 33; the first stop ears 23 and the second stop ears 33 are respectively adapted to the slots on the first rotating joint 1 and the second rotating joint 4; the first rotating shaft washer 2 is fixed on the first rotating joint 1 by the first stop ears 23; the second rotating shaft washer 3 is fixed on the second rotating joint 4 by the second stop ears 33.

[0045] Example 2

[0046] like Figure 4-5 As shown, the technical solution adopted in this embodiment is: a strong damping rotating shaft device, including a first rotating joint 1 and a second rotating joint 4;

[0047] The surface of the second rotating joint 4 is uniformly provided with several second protrusions 41 distributed in a circular pattern; the surface of the first rotating joint 1 is uniformly provided with several circular grooves 11 distributed in a circular pattern, the circular grooves 11 are interconnected and adapted to the second protrusions 41.

[0048] The difference between Embodiment 2 and Embodiment 1 is that the first rotating joint 1 and the second rotating joint 4 integrate the strong damping structure of the first rotating shaft pad 2 and the second rotating shaft pad 3. By utilizing the cooperation between the second protrusion 41 and the circular groove 11, the first rotating joint 1 and the second rotating joint 4 have strong damping in the radial direction. In addition, no additional pads are required, which further simplifies the strong damping structure.

[0049] The working principle of this utility model is as follows: This strong damping pivot device is applied to a mobile phone holder. The first stop ear 23 of the first pivot pad 2 is aligned with the slot of the first rotating joint 1, so that the first stop ear 23 is embedded in the slot, thus fixing the first pivot pad 2 to the first rotating joint 1. Similarly, the second stop ear 33 of the second pivot pad 3 is aligned with the slot of the second rotating joint 4, so that the second stop ear 33 is embedded in the slot, thus fixing the second pivot pad 3 to the second rotating joint 4.

[0050] The shaft extends from the hole in the first rotating joint 1, passes sequentially through the second rotating joint washer 3, the first rotating joint washer 2, and the first rotating joint 1, and is then locked with a nut. At this time, the first protrusion 32 is embedded in the locking hole 22. When the first rotating joint 1 and the second rotating joint 4 rotate relative to each other, the first rotating joint washer 2 and the first rotating joint 1 remain relatively stationary, and the second rotating joint washer 3 and the second rotating joint 4 remain relatively stationary. The first protrusion 32 moves to the next locking hole 22 according to the direction of rotation until it is embedded in the next locking hole 22. By utilizing the cooperation between multiple first protrusions 32 and locking holes 22, the first rotating joint 1 and the second rotating joint 4 can withstand a large torque and are not prone to failure.

[0051] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-damping rotating shaft device, comprising a first rotating joint, a first rotating shaft washer, a second rotating shaft washer, and a second rotating joint; characterized in that, The first pivot washer is fixed to the first rotating joint; the second pivot washer is fixed to the second rotating joint; The surface of the first rotating shaft washer is provided with a first central hole and several locking holes; the locking holes are evenly distributed in a circle with the first central hole as the center; The surface of the second rotating shaft washer is provided with a second central hole and several first protrusions; the first protrusions are adapted to the locking holes, and the front end of the first protrusions is a hemispherical structure.

2. The strong damping rotating shaft device according to claim 1, characterized in that, The surface of the second rotating joint is uniformly provided with several second protrusions distributed in a circular pattern; the surface of the first rotating joint is uniformly provided with several circular grooves distributed in a circular pattern, the circular grooves being interconnected and adapted to the second protrusions.

3. The high-damping rotating shaft device according to claim 1, characterized in that, The diameter of the first and second center holes is 0.3 to 0.5 mm larger than the diameter of the shaft.

4. The strong damping rotating shaft device according to claim 1, characterized in that, Both the first and second shaft washers are circular washers made of manganese steel.

5. The high-damping rotating shaft device according to claim 1, characterized in that, The surface of the first rotating shaft washer is provided with symmetrically arranged first stop ears; the surface of the second rotating shaft washer is provided with symmetrically arranged second stop ears; the first stop ears and the second stop ears are respectively adapted to the slots on the first rotating joint and the second rotating joint.

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