Passive damper

Abstract

The utility model discloses a passive damper mainly relates to RC remote control model technical field, including the shell, be equipped with damping liquid and the rotator that can rotate in damping liquid in the shell, the rotator includes disc main part, the edge of disc main part is equipped with a plurality of arc grooves evenly, is equipped with output shaft in the middle part of rotator, and the output shaft one end stretches out the shell outward and is equipped with first sealing washer between output shaft and shell, the upper and lower both ends of rotator are equipped with bearing, bearing is installed on output shaft, and output shaft is rotatably connected with shell through bearing, the utility model discloses core component can adopt lathe processing, better control precision's while also more easily make small the volume, has improved the space utilization in microcosmic model, RC model field.

Description

Technical Field

[0001] This utility model relates to the field of RC remote control model technology, specifically a passive damper. Background Technology

[0002] In the field of RC remote-controlled models, due to their generally small scale, light weight, and low inertia, it is necessary to reduce the static friction of moving parts to fully utilize the original geometric design and improve response speed. However, at the same time, dampers are also needed to control the movement speed. Traditional piston dampers in this field have inherent drawbacks such as difficulty in sealing and high static friction. In addition, traditional push rod shock absorber systems and tie rod shock absorber systems only change the direction of force through rotation, and ultimately also require piston dampers to provide damping. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a passive damper. The core components can be machined by lathe, which can better control the precision and make it easier to reduce the size, thus improving the space utilization in the fields of miniature models and RC models.

[0004] To achieve the above objectives, this utility model employs the following technical solution: A passive damper includes a housing, within which a damping fluid is disposed and a rotating body capable of rotating in the damping fluid. The rotating body includes a disc-shaped main body with a plurality of arc-shaped grooves evenly distributed along its edge. An output shaft is disposed in the middle of the rotating body, one end of which extends outward from the housing and a first sealing ring is disposed between the output shaft and the housing. Bearings are disposed at both the upper and lower ends of the rotating body, and the bearings are mounted on the output shaft. The output shaft is rotatably connected to the housing via the bearings.

[0005] Preferably, the outer shell includes an upper shell and a lower shell, the upper shell being embedded in the lower shell from top to bottom, and a second sealing ring is provided between the upper shell and the lower shell.

[0006] Preferably, the bottom of the rotating body is provided with a receiving groove adapted to the bearing, and the bearing at the lower end of the rotating body is located in the receiving groove.

[0007] Preferably, the output shaft is provided with a first mounting groove that is adapted to the first sealing ring.

[0008] Preferably, a threaded connecting post is provided in the middle of the end of the housing away from the output shaft.

[0009] Preferably, the outer diameter of the outer shell is 7mm to 20mm.

[0010] Preferably, the output shaft is mounted at one end of the swing arm.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The output shaft of this utility model is used to connect with the moving parts. The moving parts drive the output shaft and the rotating body to rotate synchronously. When the rotating body rotates in the damping fluid, the mechanical kinetic energy is consumed by the shear force, internal friction and flow resistance of the damping fluid, and is eventually converted into heat energy (the damping fluid heats up). The damping force can be adjusted by changing the damping fluid with different viscosities.

[0012] 2. The outer shell, rotating body and other components of this utility model can all be machined by lathe, which can better control the precision and make it easier to reduce the size, thus improving the space utilization in the field of miniature models and RC models.

[0013] 3. This utility model generates damping force through rotation, which can adjust the lever ratio of the transmission components, converting large-amplitude linear motion into small-amplitude rotational motion. This significantly reduces the friction range between the sealing ring and the moving parts, lowers the static friction of the damper, increases the service life of the sealing ring, and reduces the probability of oil leakage.

[0014] 4. This utility model has a threaded connecting post in the middle of the end of the outer shell away from the output shaft, which improves the integration while simplifying the parts and improving the versatility. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a top view of the rotating body.

[0018] Figure 4 This is one of the schematic diagrams of a three-dimensional structure of a rotating body.

[0019] Figure 5 This is the second schematic diagram of the three-dimensional structure of a rotating body.

[0020] Figure 6 This is a schematic diagram of the usage state of this utility model.

[0021] The following figures are labeled as follows: 1. Outer shell; 11. Upper shell; 12. Lower shell; 13. Second sealing ring; 14. Threaded connecting post; 2. Rotating body; 21. Disc-shaped main body; 22. Arc-shaped groove; 23. Receiving groove; 3. Output shaft; 31. First mounting groove; 4. First sealing ring; 5. Bearing; 6. Swing arm. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0023] Example: As attached Figure 1-6 As shown, the present invention relates to a passive damper, comprising a housing 1, wherein the housing 1 contains a damping fluid and a rotating body 2 capable of rotating within the damping fluid. Preferably, for ease of housing manufacturing, the housing 1 comprises an upper housing 11 and a lower housing 12, both of which can be rotating bodies and can be machined by a lathe. The upper housing 11 is embedded in the lower housing 12 from top to bottom, and a second sealing ring 13 is provided between the upper housing 11 and the lower housing 12 to ensure the sealing between the upper housing 11 and the lower housing 12. Mounting positions adapted to the second sealing ring 13 are provided at the bottom of the outer wall of the upper housing 11 and on the inner wall of the lower housing 12. The upper housing 11 and the lower housing 12 can be connected by threads, or the upper housing 11 can be directly embedded in the lower housing 12.

[0024] The rotating body 2 includes a disc-shaped main body 21. The edge of the disc-shaped main body 21 is uniformly provided with a plurality of arc-shaped grooves 22. The disc-shaped main body 21 can be machined by a lathe, and the arc-shaped grooves 22 on the edge can be machined by drilling. The manufacturing cost is low. Different damping curves can be obtained by changing the number and size of the arc-shaped grooves 22.

[0025] An output shaft 3 is provided in the middle of the rotating body 2. The output shaft 3 and the disc-shaped body 21 can be an integral structure, machined in one piece; or the output shaft 3 and the disc-shaped body 21 can be a separate structure, with the output shaft 3 and the disc-shaped body 21 connected by a key.

[0026] The output shaft 3 can be provided with mounting positions using D-axis of different diameters, cylindrical shafts, threads, etc.

[0027] One end of the output shaft 3 extends outward from the outer casing 1 and a first sealing ring 4 is provided between the output shaft 3 and the outer casing 1. The output shaft 3 passes through the rotating body 2. Both the upper and lower ends of the rotating body 2 are provided with bearings 5. The bearings 5 ​​are installed on the output shaft 3. The output shaft 3 is rotatably connected to the outer casing 1 through the bearings 5.

[0028] Preferably, the bottom of the rotating body 2 is provided with a receiving groove 23 adapted to the bearing 5. The bearing 5 at the lower end of the rotating body 2 is located in the receiving groove 23. On the one hand, this can reduce the height of the outer shell 1, and on the other hand, it can form multiple downwardly extending protrusions on the edge of the rotating body 2, which can improve damping.

[0029] Preferably, in order to facilitate the installation of the first sealing ring, the output shaft 3 is provided with a first mounting groove 31 that is adapted to the first sealing ring 4.

[0030] Preferably, a threaded connecting post 14 is provided in the middle of the end of the housing 1 away from the output shaft 3. The threaded connecting post 14 can be of different diameters to match the usage scenario.

[0031] Preferably, the outer diameter of the outer shell 1 is 7mm to 20mm.

[0032] The output shaft 3 can be directly connected to the moving parts, and the moving parts drive the output shaft 3 and the rotating body 2 to rotate synchronously. A transmission component can also be set between the output shaft 3 and the moving parts. The transmission component can be a lever, a swing arm 6, a linkage mechanism, etc. By adjusting the lever ratio of the transmission component, the large linear motion is converted into a small rotational motion, which greatly reduces the friction range between the sealing ring and the moving parts, reduces the static friction of the damper operation, increases the service life of the sealing ring, and reduces the probability of oil leakage.

Claims

1. A passive damper, comprising a housing (1), characterized in that: The outer shell (1) contains a damping fluid and a rotating body (2) that can rotate in the damping fluid. The rotating body (2) includes a disc-shaped main body (21). The edge of the disc-shaped main body (21) is uniformly provided with several arc-shaped grooves (22). An output shaft (3) is provided in the middle of the rotating body (2). One end of the output shaft (3) extends outward from the outer shell (1) and a first sealing ring (4) is provided between the output shaft (3) and the outer shell (1). Bearings (5) are provided at both the upper and lower ends of the rotating body (2). The bearings (5) are installed on the output shaft (3). The output shaft (3) is rotatably connected to the outer shell (1) through the bearings (5).

2. A passive damper according to claim 1, characterized in that: The outer shell (1) includes an upper shell (11) and a lower shell (12). The upper shell (11) is embedded in the lower shell (12) from top to bottom, and a second sealing ring (13) is provided between the upper shell (11) and the lower shell (12).

3. A passive damper according to claim 1, characterized in that: The bottom of the rotating body (2) is provided with a receiving groove (23) adapted to the bearing (5), and the bearing (5) at the lower end of the rotating body (2) is located in the receiving groove (23).

4. A passive damper according to claim 1, characterized in that: The output shaft (3) is provided with a first mounting groove (31) that is adapted to the first sealing ring (4).

5. A passive damper according to claim 1, characterized in that: The housing (1) has a threaded connecting post (14) at the middle of the end away from the output shaft (3).

6. A passive damper according to claim 1, characterized in that: The outer diameter of the outer shell (1) is 7mm to 20mm.

7. A passive damper according to claim 1, characterized in that: The output shaft (3) is mounted on one end of the swing arm (6).

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