Damping device and vehicle
By designing a vibration damping device including a box, a drive member and a flywheel, the friction between the oil and the moving member increases damping, the shaking or instability of the automobile suspension system during low-frequency vibration is solved, and the vibration damping effect is improved and the system quality is reduced.
Patent Information
- Application Number
- CN202421472708.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Existing automotive suspension systems are prone to shaking or unstable when vibration is low-frequency, and the vibration damping effect of inertia containers is poor, resulting in bulky and unfavorable for lightweighting.
A vibration damping device is designed, including a box, a driving member and a flywheel. The driving member is movably connected to the box. The flywheel body is arranged in the box and the chamber is filled with oil. The driving member drives the flywheel to rotate, increasing damping through the friction between the oil and the moving parts, and improving the vibration damping effect.
By increasing damping, the vibration damping effect of the vibration damping device is improved, the shaking or instability problems caused by low-frequency vibration is avoided, and the system quality is reduced, which improves the advantage of lightweighting.
Smart Images
Figure CN222687205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vibration reduction, in particular to a vibration reduction device and a vehicle. Background Art
[0002] The automobile chassis suspension system determines the ride comfort and handling of the car. The suspension system adjusts the spring stiffness to reduce the natural frequency of the system, thereby meeting the vibration isolation rate during low-frequency vibration. However, if the spring stiffness is too low, it is easy to cause shaking or instability at low frequencies. If the mass of the system is increased, it will make the system bulky and not conducive to lightweighting. In the related technology, inertia vessels are often used to reduce vibration of the suspension system. Inertia vessels convert the energy input by external force into the rotational kinetic energy of the flywheel to achieve vibration reduction. However, the energy stored in the flywheel is generally not completely dissipated, resulting in poor vibration reduction effect. Utility Model Content
[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the embodiment of the utility model provides a vibration reduction device, which can improve the vibration reduction effect.
[0004] The embodiment of the utility model also provides a vehicle.
[0005] The vibration reduction device of the embodiment of the utility model comprises: a housing; a driving member, one end of the driving member at least partially extends out of the housing, and the driving member is movably connected to the housing, and one end of the driving member is suitable for being connected to a device that needs vibration reduction; a flywheel, the flywheel comprising a flywheel body and a moving member, the flywheel body is arranged in the housing, the flywheel body is rotatable relative to the housing, the flywheel body has a chamber, the moving member is arranged in the chamber, the chamber is filled with oil, the other end of the driving member is connected to the flywheel body to drive the flywheel body to rotate, and the rotation of the flywheel body can drive the moving member to move or rotate.
[0006] The vibration reduction device of the embodiment of the utility model can improve the vibration reduction effect.
[0007] In some embodiments, the chamber is an annular chamber, and the annular chamber is coaxially arranged with the flywheel body.
[0008] In some embodiments, the moving part is an inertia ring, which is coaxially arranged with the annular cavity. The rotation of the flywheel body can drive the inertia ring to rotate, and the rotation speed of the flywheel body is different from the rotation speed of the inertia ring.
[0009] In some embodiments, the moving part is a sliding block, and the flywheel also includes a slide rail, which is arranged in the chamber. The slide rail extends along the radial direction of the flywheel body and is connected to the flywheel body. The sliding block cooperates with the slide rail, and the rotation of the flywheel body can drive the sliding block to slide on the slide rail.
[0010] In some embodiments, the number of the sliding rails and the number of the sliding blocks are both multiple, and the multiple sliding rails are evenly spaced in the circumferential direction of the flywheel body.
[0011] In some embodiments, the vibration reduction device also includes a transmission component, which is disposed in the housing, and includes a first gear and a second gear, the first gear and the second gear are coaxially arranged, the first gear is meshed with the driving member, the second gear is connected to the flywheel, and the diameter of the first gear is smaller than the diameter of the second gear.
[0012] In some embodiments, the transmission component further includes a third gear, the third gear is coaxially arranged with the flywheel, the third gear is meshed with the second gear, and a diameter of the third gear is smaller than a diameter of the second gear.
[0013] In some embodiments, the transmission component further includes a first rotating shaft, the first rotating shaft is rotatably connected to the housing, and the first gear and the second gear are mounted on the first rotating shaft.
[0014] In some embodiments, the transmission component further includes a second rotating shaft, the second rotating shaft is spaced apart from the first rotating shaft, the second rotating shaft is rotatably connected to the housing, and the third gear and the flywheel are mounted on the second rotating shaft.
[0015] The vehicle of the embodiment of the utility model comprises the vibration reduction device described in the above embodiment.
[0016] The vehicle according to the embodiment of the utility model can improve the vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of a vibration reduction device according to an embodiment of the present utility model.
[0018] Figure 2 It is a schematic diagram of the vibration reduction device of the embodiment of the utility model from another perspective.
[0019] Figure 3 It is a schematic diagram of the vibration reduction device of the embodiment of the utility model from another perspective.
[0020] Figure 4 yes Figure 3 Sectional view of AA.
[0021] Figure 5 It is a schematic diagram of another embodiment of the utility model.
[0022] Figure 6 It is a cross-sectional view of another embodiment of the utility model.
[0023] Figure 7 yes Figure 5 Cross-sectional view of BB.
[0024] Reference numerals:
[0025] Box 1, driving part 2,
[0026] Flywheel 3, flywheel body 31, chamber 311, weight-reducing hole 312,
[0027] Moving part 32, inertia ring 321, sliding block 322, slide rail 33,
[0028] Transmission component 4, a first gear 41, a second gear 42, a third gear 43, a first rotating shaft 44, and a second rotating shaft 45. DETAILED DESCRIPTION
[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.
[0030] The vibration reduction device of the embodiment of the utility model comprises a housing 1, a driving member 2 and a flywheel 3. One end of the driving member 2 at least partially extends out of the housing 1, and the driving member 2 is movably connected to the housing 1, and one end of the driving member 2 is suitable for being connected to a device that needs vibration reduction. The flywheel 3 comprises a flywheel body 31 and a moving member 32, the flywheel body 31 is arranged in the housing 1, the flywheel body 31 is rotatable relative to the housing 1, the flywheel body 31 has a chamber 311, the moving member 32 is arranged in the chamber 311, and the chamber 311 is filled with oil, the other end of the driving member 2 is connected to the flywheel body 31 to drive the flywheel body 31 to rotate, and the rotation of the flywheel body 31 can drive the moving member 32 to move or rotate.
[0031] Specifically, Figure 1-Figure 3 As shown, the upper end of the driving member 2 extends out of the box body 1 and is connected to the device that needs vibration reduction, and the lower end of the driving member 2 is located in the box body 1. The lower end of the box body 1 is fixed, and the driving member 2 can move in the up and down directions relative to the box body 1. When the device that needs vibration reduction moves, it will drive the driving member 2 to move up and down.
[0032] The lower end of the driving member 2 is connected to the flywheel body 31, and the moving member 32 is arranged in a chamber 311 filled with oil in the flywheel body 31. When the lower end of the driving member 2 drives the flywheel body 31 to rotate, due to the friction and viscosity between the inner wall surface of the chamber 311 and the oil, the oil is driven to move when the flywheel body 31 rotates. The movement of the oil acts on the moving member 32 through the friction force, driving the moving member 32 to move or rotate. The friction between the moving member 32 and the oil causes the oil temperature to rise, thereby increasing the damping of the vibration reduction device.
[0033] For example, the oil is silicone oil, and the damping of the flywheel 3 during rotation can be changed by replacing silicone oil of different viscosities in the chamber 311 of the flywheel body 31 .
[0034] The vibration reduction device of the embodiment of the utility model is implemented by arranging the moving part 32 in the chamber 311 filled with oil of the flywheel body 31. The rotation of the flywheel body 31 can absorb the translational kinetic energy of the driving part 2. When the driving part 2 drives the flywheel body 31 to rotate, the rotation of the flywheel body 31 drives the movement of the moving part 32 through the oil. The friction between the oil in the chamber 311 and the moving part 32 increases the damping of the flywheel 3 during rotation, converts the translational kinetic energy into a part of the friction energy dissipation, and improves the vibration reduction effect of the vibration reduction device.
[0035] The vibration reduction device of this embodiment can be applied to the rack and pinion inertia container flywheel 3, and can also be applied to the ball screw inertia container flywheel 3, and has strong versatility.
[0036] In some embodiments, the chamber 311 is an annular chamber, which is coaxially arranged with the flywheel body 31 .
[0037] Specifically, Figure 4-Figure 6 As shown, the coaxial arrangement of the annular cavity and the flywheel body 31 ensures that when the flywheel body 31 rotates, the centrifugal force exerted on the oil in the chamber 311 and the moving parts 32 is evenly distributed, thereby avoiding noise and vibration caused by uneven force on the oil and the moving parts 32, thereby improving the stability and reliability of the vibration reduction device and the vibration reduction effect of the vibration reduction device.
[0038] In some embodiments, the moving part 32 is an inertia ring 321 , which is coaxially arranged with the annular cavity. The rotation of the flywheel body 31 can drive the inertia ring 321 to rotate, and the rotation speed of the flywheel body 31 is different from the rotation speed of the inertia ring 321 .
[0039] Specifically, Figure 4 As shown, the inertia ring 321 is annular, and the annular setting can make the chamber 311 better accommodate the inertia ring 321, so that the inertia ring 321 is evenly distributed in the chamber 311, reducing the vibration and imbalance caused by uneven distribution, and improving the rotation stability of the flywheel 3.
[0040] Optionally, the flywheel body 31 is provided with a weight-reducing hole 312 penetrating the flywheel body 31 along the thickness direction thereof, which is beneficial to the lightweighting of the flywheel 3 .
[0041] In some embodiments, the moving part 32 is a sliding block 322, and the flywheel 3 also includes a sliding rail 33. The sliding rail 33 is arranged in the chamber 311, and the sliding rail 33 extends along the radial direction of the flywheel body 31 and is connected to the flywheel body 31. The sliding block 322 cooperates with the sliding rail 33, and the rotation of the flywheel body 31 can drive the sliding block 322 to slide on the sliding rail 33.
[0042] Specifically, Figure 5-Figure 7 As shown, the outer contour of the sliding block 322 on the projection surface parallel to the radial direction of the flywheel body 31 is arc-shaped, and the sliding block 322 slides in the extension direction of the slide rail 33 to make the sliding block 322 move closer to the center of the flywheel body 31 or away from the center of the flywheel body 31.
[0043] When the driving member 2 drives the flywheel body 31 to rotate, as the rotation speed of the flywheel body 31 increases, the centrifugal force on the sliding block 322 increases, and the sliding block 322 moves away from the center of the flywheel body 31. The sliding block 322 slides outward and generates heat by friction with the oil, which increases the rotational inertia while increasing the sliding damping.
[0044] In the embodiment of the utility model, a sliding block 322 is provided whose position can change with the rotation speed of the flywheel body 31. The friction between the sliding block 322 and the oil increases the damping to dissipate energy, thereby increasing the damping of the vibration reduction device. This embodiment does not need to separately set a damper to reduce the amplitude of low-frequency vibration, and has a simple structure and high reliability.
[0045] In some embodiments, there are multiple slide rails 33 and multiple slide blocks 322 , and the multiple slide rails 33 are evenly spaced in the circumferential direction of the flywheel body 31 .
[0046] Specifically, Figure 6 As shown, multiple slide rails 33 and multiple sliding blocks 322 are arranged in one-to-one correspondence, and the multiple sliding blocks 322 are evenly spaced in the circumferential direction of the flywheel body 31. When the flywheel body 31 rotates, the multiple sliding blocks 322 are subjected to the same centrifugal force, and the multiple sliding blocks 322 slide outward at the same time. The multiple sliding blocks 322 rub against the oil at the same time, which can dissipate more energy, increase the damping of the vibration reduction device, and improve the vibration reduction effect.
[0047] In some embodiments, the vibration reduction device also includes a transmission component 4, which is disposed in the housing 1. The transmission component 4 includes a first gear 41 and a second gear 42. The first gear 41 and the second gear 42 are coaxially arranged, the first gear 41 is meshed with the driving member 2, the second gear 42 is connected to the flywheel 3, and the diameter of the first gear 41 is smaller than the diameter of the second gear 42.
[0048] Specifically, Figure 1-Figure 3 As shown, the lower end of the driving member 2 is provided with a plurality of teeth meshing with the first gear 41, and the first gear 41 meshes with the teeth on the driving member 2. The up and down movement of the driving member 2 drives the first gear 41 to rotate, and the rotation of the first gear 41 drives the second gear 42 to rotate, and the rotation of the second gear 42 drives the flywheel 3 to rotate.
[0049] In this embodiment, the diameter of the first gear 41 is smaller than the diameter of the second gear 42. The coaxial arrangement of the first gear 41 and the second gear 42 can achieve force amplification through the transmission ratio of the gears. In this embodiment, the specific diameters of the first gear 41 and the second gear 42 are not limited, but are limited by the actually required transmission ratio.
[0050] In some embodiments, the transmission component 4 further includes a third gear 43 , which is coaxially arranged with the flywheel 3 , meshes with the second gear 42 , and has a diameter smaller than that of the second gear 42 .
[0051] Specifically, Figure 1-Figure 3 As shown, the rotation of the second gear 42 drives the third gear 43 to rotate, and the rotation of the third gear 43 drives the coaxially arranged flywheel 3 to rotate. By setting the diameter of the third gear 43 to be smaller than the diameter of the second gear 42, different gear transmission ratios between the second gear 42 and the third gear 43 are achieved. The rotation of the second gear 42 drives the flywheel 3 to rotate, thereby realizing the transmission and conversion of force.
[0052] In this embodiment, by setting the first gear 41, the second gear 42 and the third gear 43, the lower end of the driving member 2 is meshed with the first gear 41, so that the up and down movement of the driving member 2 drives the first gear 41 to rotate, the first gear 41 is coaxially arranged with the second gear 42 to drive the second gear 42 to rotate, the second gear 42 is meshed with the third gear 43 to drive the third gear 43 to rotate, and the third gear 43 is coaxially arranged with the flywheel 3 to drive the flywheel 3 to rotate, so that the up and down movement of the driving member 2 drives the rotation of the flywheel 3, and the rotation of the flywheel 3 drives the movement and rotation of the moving member 32 through the oil, thereby increasing the damping of the rotation of the flywheel 3, reducing the low-frequency resonance peak, and improving the vibration reduction effect of the vibration reduction device.
[0053] In some embodiments, the transmission component 4 further includes a first rotating shaft 44 , which is rotatably connected to the housing 1 , and the first gear 41 and the second gear 42 are mounted on the first rotating shaft 44 .
[0054] Specifically, Figure 1-Figure 3As shown, the first rotating shaft 44 is located on the right side of the driving member 2, and the first gear 41 is sleeved on the first rotating shaft 44. The movement of the driving member 2 drives the first gear 41 to rotate, and the rotation of the first gear 41 drives the first rotating shaft 44 to rotate. The second gear 42 is installed on the first rotating shaft 44, and the rotation of the first rotating shaft 44 drives the second gear 42 to rotate. Through the setting of the first rotating shaft 44, the rotation of the first gear 41 drives the second gear 42 to rotate.
[0055] In some embodiments, the transmission component 4 further includes a second rotating shaft 45 , which is spaced apart from the first rotating shaft 44 , and is rotatably connected to the housing 1 , on which the third gear 43 and the flywheel 3 are mounted.
[0056] Specifically, Figure 1-Figure 3 As shown, the second rotating shaft 45 is located on the left side of the driving member 2, the third gear 43 is sleeved on the second rotating shaft 45, the second gear 42 is meshed with the third gear 43, the second gear 42 rotates to drive the third gear 43 to rotate, the third gear 43 rotates to drive the second rotating shaft 45 to rotate, the second rotating shaft 45 rotates to drive the flywheel 3 installed on the second rotating shaft 45 to rotate, and through the setting of the second rotating shaft 45, the third gear 43 rotates to drive the flywheel 3 to rotate.
[0057] For example, the third gear 43 and the flywheel 3 and the second rotating shaft 45 can be connected by bolts or by splines. This embodiment does not limit the connection method between the third gear 43 and the flywheel 3 and the second rotating shaft 45.
[0058] The vehicle of the embodiment of the utility model comprises the vibration reduction device of the above embodiment.
[0059] The lower end of the box body 1 of the embodiment of the utility model is connected to the frame of the vehicle, which can reduce vibration and improve the comfort of the vehicle.
[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0063] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0064] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0065] It is understandable that the above embodiments are exemplary and cannot be construed as limiting the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A vibration reduction device, characterized in that: include: Box; A driving member, one end of which at least partially extends out of the box, and the driving member is movably connected to the box, and one end of the driving member is suitable for being connected to a device requiring vibration reduction; A flywheel, comprising a flywheel body and a moving part, wherein the flywheel body is arranged in the housing, and the flywheel body is rotatable relative to the housing. The flywheel body has a chamber, and the moving part is arranged in the chamber, and the chamber is filled with oil. The other end of the driving part is connected to the flywheel body to drive the flywheel body to rotate, and the rotation of the flywheel body can drive the moving part to move or rotate.
2. The vibration reduction device according to claim 1, characterized in that: The chamber is an annular chamber, and the annular chamber is coaxially arranged with the flywheel body.
3. The vibration reduction device according to claim 2, characterized in that: The moving part is an inertia ring, which is coaxially arranged with the annular cavity. The rotation of the flywheel body can drive the inertia ring to rotate, and the rotation speed of the flywheel body is different from that of the inertia ring.
4. The vibration reduction device according to claim 2, characterized in that: The moving part is a sliding block, and the flywheel also includes a sliding rail. The sliding rail is arranged in the chamber, extends along the radial direction of the flywheel body and is connected to the flywheel body. The sliding block cooperates with the sliding rail, and the rotation of the flywheel body can drive the sliding block to slide on the sliding rail.
5. The vibration reduction device according to claim 4, characterized in that: The number of the slide rails and the number of the slide blocks are both multiple, and the multiple slide rails are evenly spaced and arranged in the circumferential direction of the flywheel body.
6. The vibration reduction device according to claim 1, characterized in that: It also includes a transmission component, which is arranged in the box body. The transmission component includes a first gear and a second gear. The first gear is coaxially arranged with the second gear. The first gear is meshed with the driving member, and the second gear is connected to the flywheel. The diameter of the first gear is smaller than the diameter of the second gear.
7. The vibration reduction device according to claim 6, characterized in that: The transmission component further includes a third gear, which is coaxially arranged with the flywheel and meshes with the second gear, and a diameter of the third gear is smaller than a diameter of the second gear.
8. The vibration reduction device according to claim 7, characterized in that: The transmission component further includes a first rotating shaft, the first rotating shaft is rotatably connected to the box body, and the first gear and the second gear are mounted on the first rotating shaft.
9. The vibration reduction device according to claim 8, characterized in that: The transmission component further includes a second rotating shaft, which is spaced apart from the first rotating shaft, the second rotating shaft is rotatably connected to the housing, and the third gear and the flywheel are mounted on the second rotating shaft.
10. A vehicle, characterized in that: The vibration reduction device comprises the vibration reduction device according to any one of claims 1 to 9.