Damping wheel

Abstract

The utility model provides a damping wheel, and relates to the technical field of damping devices. The damping wheel comprises a damping wheel shaft mechanism, a damping wheel body, a first damping fin and a second damping fin. The damping wheel body can rotate relative to the damping wheel shaft mechanism; a damping cavity is formed between the damping wheel shaft mechanism and the damping wheel body, a first damping fin and a second damping fin are arranged in the damping cavity and make direct or indirect contact, the first damping fin and the damping wheel body are relatively fixed in the radial direction, and the second damping fin and the damping wheel body are oppositely fixed in the radial direction. And the second damping fin and the damping wheel shaft mechanism are relatively fixed in the radial direction.

Description

Technical Field

[0001] This specification relates to the technical field of damping devices, specifically to a damping wheel. Background Technology

[0002] Damping mechanisms are energy dissipation devices used in mechanical vibration reduction, motion control, and precision instruments. They suppress motion by generating resistance in the opposite direction. Rotational friction dampers can provide rotational friction damping between two components. In some applications, such as transporting objects using rollers via rolling friction, it may be necessary for the rollers to provide both rolling friction and rotational damping. In some embodiments, rolling friction can be achieved using rollers, and rotational dampers can be arranged on the roller shaft to provide rotational damping. This means that the above requirement can be achieved through a combination of two or more mechanisms, but this approach involves more components and a larger volume. Utility Model Content

[0003] This specification provides one or more embodiments of a damping wheel, including: a damping wheel axle mechanism, a damping wheel body, a first damping plate, and a second damping plate; the damping wheel body is rotatable relative to the damping wheel axle mechanism; a damping cavity is formed between the damping wheel axle mechanism and the damping wheel body, the first damping plate and the second damping plate are disposed inside the damping cavity, the first damping plate and the second damping plate are in direct or indirect contact, the first damping plate is fixed relative to the damping wheel body in the radial direction, and the second damping plate is fixed relative to the damping wheel axle mechanism in the radial direction.

[0004] In some embodiments, the interior of the damping cavity is at least partially filled with damping grease.

[0005] In some embodiments, the outer periphery of the first damping sheet includes one or more first damping sheet protrusions; the inner wall of the damping wheel body is provided with a damping sheet limiting groove, and the first damping sheet protrusion is disposed in the damping sheet limiting groove.

[0006] In some embodiments, the cross-section of the outer surface of the damping wheel and axle mechanism is non-circular, and the inner edge of the second damping plate matches the outer edge of the damping wheel and axle mechanism so that the second damping plate and the damping wheel and axle mechanism are fixed relative to each other in the radial direction.

[0007] In some embodiments, the damping wheel and axle mechanism includes a first damping wheel and a damping inner shell sleeved on the first damping wheel and a damping inner shell, the damping inner shell being rotatable about the first damping wheel and / or about the reverse direction; the damping wheel being rotatable relative to the damping inner shell; and the second damping plate being fixed relative to the damping inner shell in the radial direction.

[0008] In some embodiments, a one-way bearing is provided between the first damping wheel axle and the damping inner shell.

[0009] In some embodiments, a bearing housing space is formed between one or both ends of the damping housing and the first damping wheel axle, and the one-way bearing is disposed within the bearing housing space.

[0010] In some embodiments, the damping wheel and shaft mechanism includes a second damping wheel and shaft; the damping wheel body is rotatable relative to the second damping wheel and shaft; the second damping plate is fixed relative to the second damping wheel and shaft in the radial direction.

[0011] In some embodiments, there are multiple first damping plates and multiple second damping plates, and the first damping plates and the second damping plates are alternately arranged.

[0012] In some embodiments, the damping wheel and axle mechanism includes a damping wheel and axle; at least one end of the damping wheel and axle is provided with a first opening, and the side of the damping wheel and axle is provided with a second opening communicating with the damping cavity; the damping wheel and axle has a damping wheel and axle channel communicating with the first opening and the second opening.

[0013] In some embodiments, there is a gap between the first damping plate and the damping wheel shaft; the second opening faces one of the gaps between the first damping plate and the damping wheel shaft; or, there are multiple second openings, each facing a different gap between the first damping plate and the damping wheel shaft.

[0014] In some embodiments, the damping wheel axle mechanism is provided with two retaining rings, and the first damping plate and the second damping plate are located between the two retaining rings.

[0015] In some embodiments, the damping wheel and shaft mechanism includes a second damping wheel and shaft, on which two retaining rings are provided, and the first damping plate and the second damping plate are located between the two retaining rings.

[0016] In some embodiments, the damping wheel body is provided with a rubber coating; the damping wheel body has two rubber coating limiting portions, and the rubber coating is located between the two rubber coating limiting portions; the rubber coating at least partially covers the rubber coating limiting portions.

[0017] This specification provides one or more embodiments of a damping wheel, including: a damping wheel axle mechanism, a damping wheel body, and a damping plate; the damping wheel body is rotatable relative to the damping wheel axle mechanism; a damping cavity is formed between the damping wheel axle mechanism and the damping wheel body, and the damping plate is disposed inside the damping cavity; the damping plate is fixed relative to the damping wheel axle mechanism in the radial direction or the damping plate is fixed relative to the damping wheel body in the radial direction.

[0018] In some embodiments, the damping plate includes a third damping plate and a fourth damping plate, the third damping plate abutting against the inner wall of the damping wheel body, and the fourth damping plate being fixed relative to the damping wheel shaft mechanism in the radial direction. Attached Figure Description

[0019] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. The same numbers in the drawings denote the same structures or steps.

[0020] Figure 1 This is a schematic diagram of a damping wheel according to some embodiments of this specification.

[0021] Figure 2 This is a schematic diagram of the damping wheel shaft, the first damping plate, and the second damping plate of a damping wheel according to some embodiments of this specification.

[0022] Figure 3 This is a front view schematic diagram of a damping wheel according to some embodiments of this specification.

[0023] Figure 4 This is a cross-sectional schematic diagram of a damping wheel according to other embodiments of this specification.

[0024] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0025] Figure 6 This is a schematic diagram of a damping wheel according to other embodiments of this specification.

[0026] Figure 7 This is a schematic diagram of the damping wheel shaft, the first damping plate, and the second damping plate of a damping wheel according to other embodiments of this specification.

[0027] Figure 8 This is a front view schematic diagram of a damping wheel according to other embodiments of this specification.

[0028] Figure 9 This is a cross-sectional schematic diagram of a damping wheel according to other embodiments of this specification.

[0029] Figure 10 yes Figure 9 A magnified view of a portion of the image.

[0030] Figure 11 yes Figure 9 A magnified view of a portion of the image.

[0031] Figure 12 This is a schematic diagram of the damping wheel shaft of a damping wheel according to other embodiments of this specification.

[0032] Figure 13 This is a front view schematic diagram of the damping wheel shaft of a damping wheel according to other embodiments of this specification.

[0033] Figure 14 This is a cross-sectional schematic diagram of the damping wheel shaft of a damping wheel according to other embodiments of this specification.

[0034] Figure 15 This is a schematic diagram of the damping wheel body of a damping wheel according to some embodiments of this specification.

[0035] Figure 16 This is a schematic diagram of the first damping plate of a damping wheel according to some embodiments of this specification.

[0036] Figure 17 This is a schematic diagram of the second damping plate of a damping wheel according to some embodiments of this specification.

[0037] The diagram shows the following markings: 1 Damping wheel and axle mechanism; 10 Damping wheel and axle; 101 First opening; 102 Second opening; 103 Damping wheel and axle channel; 104 Retaining ring; 105 Oil nozzle; 11 First damping wheel and axle; 12 Damping middle shell; 121 First damping middle shell; 122 Second damping middle shell; 123 Stepped part; 13 One-way bearing; 16 Second damping wheel and axle; 161 Boss; 162 Elastic retaining ring; 17 One-way bearing; 2 Damping wheel body; 201 Sealing ring; 202 Bearing; 21 Damping plate limiting groove; 22 Rubber-coated limiting part; 23 Rubber-coated limiting groove; 3 First damping plate; 31 First damping plate protrusion; 4 Second damping plate; 5 Rubber coating. Detailed Implementation

[0038] To more clearly illustrate the technical solutions of the embodiments in this specification, the embodiments will be described in detail below with reference to the accompanying drawings. Obviously, the content described below are some examples or embodiments of this specification. For those skilled in the art, without creative effort, the technical solutions or means disclosed in this specification can be applied to other scenarios based on this technical content.

[0039] It should be understood that the terms "system," "device," "equipment," "part" and / or "component," "unit" and / or "module" used in this specification are a method of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other words can achieve the same purpose, they may be replaced by other expressions.

[0040] Unless otherwise specified, the technical terms used to describe components, elements, etc. in this specification are not singular but may include plural. Generally speaking, terms such as "comprising" or "including" only indicate that explicitly identified steps, elements, or components are included, and these steps, elements, and components do not constitute an exclusive list, as the described method or apparatus may also include other steps or components.

[0041] In the description of this specification, it should be understood that the directional descriptions, such as up, down, front, back, left, and right, indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. These descriptions are for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In the description of this specification, unless otherwise expressly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of the above terms in this specification in conjunction with the specific content of the technical solution.

[0042] Damping mechanisms are energy dissipation devices that can be applied in mechanical vibration reduction, motion control, and precision instruments. Damping mechanisms suppress motion by generating resistance in the opposite direction to the motion. In some embodiments, damping mechanisms may include friction dampers that dissipate energy through contact surface friction, hydraulic dampers that buffer through fluid flow resistance, and electromagnetic dampers that generate resistance using eddy current effects. In some embodiments, friction dampers may include linear friction dampers and rotational friction dampers.

[0043] In some related embodiments, a rotary friction damper can be used to provide rotary friction damping between two components. The rotary friction damper may include a first portion fixedly connected to a first component, a second portion fixedly connected to a second component, and a damping assembly disposed between the first and second portions. In some embodiments, the damping assembly may include two friction blocks or friction plates for providing damping, the two friction blocks or friction plates being pressed together by a clamping mechanism (e.g., an automatically applied elastic element or a manually tightened threaded pair) to increase the coefficient of friction. However, the rotary damping provided by two friction blocks or two friction plates is relatively small and may be difficult to adapt to usage requirements in some cases.

[0044] In some relevant applications, such as transporting objects using rollers through rolling friction, it may be necessary for the rollers to provide both rolling friction and rotational damping. In some related embodiments, rolling friction can be achieved using rollers, and rotational dampers can be arranged on the roller shaft to provide rotational damping. That is, the above requirement can be achieved through a combination of two or more mechanisms, but this solution has more components and a larger volume.

[0045] Based on this, one or more embodiments of this specification provide a damping wheel that can simultaneously provide rolling friction and rotational damping without the need for a combination of two or more mechanisms, and can provide greater rotational damping.

[0046] Figure 1 This is a schematic diagram of a damping wheel according to some embodiments shown in this specification. Figure 2 This is a schematic diagram of the damping wheel shaft, the first damping plate, and the second damping plate of a damping wheel according to some embodiments of this specification. See also Figure 1 , Figure 2 As shown, in one or more embodiments of this specification, the damping wheel may include: a damping wheel axle mechanism 1, a damping wheel body 2, a first damping plate 3, and a second damping plate 4. In some embodiments, the damping wheel body 2 is rotatable relative to the damping wheel axle mechanism 1, wherein the outer surface of the damping wheel body 2 is used to provide rolling friction to an external mechanism or a transported component, and rotational damping is formed between the damping wheel body 2 and the damping wheel axle mechanism 1, thereby providing rotational damping while providing rolling friction.

[0047] In some embodiments, a damping cavity is formed between the damping wheel axle mechanism 1 and the damping wheel body 2. The damping cavity contains a first damping plate 3 and a second damping plate 4, which are in direct or indirect contact to provide rotational damping through direct or indirect friction between them. The first damping plate 3 is fixed relative to the damping wheel body 2 in the radial direction, and the second damping plate 4 is fixed relative to the damping wheel axle mechanism 1 in the radial direction. In some embodiments, being fixed relative to each other in the radial direction can mean that they do not rotate relative to each other about the axial direction.

[0048] For example, the first damping plate 3 and the damping wheel 2 are fixed relative to each other in the radial direction, so that the first damping plate 3 can rotate with the rotation of the damping wheel 2 and have the same angular velocity as the damping wheel 2. Alternatively, the first damping plate 3 and the damping wheel 2 are fixed relative to each other in the radial direction, so that the first damping plate 3 can remain stationary when the damping wheel 2 is stationary.

[0049] For example, the second damping plate 4 is fixed relative to the damping wheel and axle mechanism 1 in the radial direction so that the second damping plate 4 can rotate with the rotation of the damping wheel and axle mechanism 1 and have the same angular velocity as the damping wheel and axle mechanism 1; or, the second damping plate 4 is fixed relative to the damping wheel and axle mechanism 1 in the radial direction so that the second damping plate 4 can remain stationary when the damping wheel and axle mechanism 1 is stationary.

[0050] In some embodiments, the first damping plate 3 and the damping wheel body 2 can be connected by a key or by a fixed connection (e.g., bonding or welding) to achieve relative fixation in the radial direction. In some embodiments, the second damping plate 4 and the damping wheel shaft mechanism 1 can be connected by a key or by a fixed connection (e.g., bonding or welding) to achieve relative fixation in the radial direction.

[0051] In some embodiments, the first damping plate 3 can be axially translated relative to the damping wheel body 2 to facilitate the assembly of the first damping plate 3 between the damping wheel shaft mechanism 1 and the damping wheel body 2. In some embodiments, the second damping plate 4 can be axially translated relative to the damping wheel shaft mechanism 1 to facilitate the assembly of the second damping plate 4 between the damping wheel shaft mechanism 1 and the damping wheel body 2.

[0052] In some embodiments, the first damping plate 3 and the second damping plate 4 can rotate relative to each other, with the first damping plate 3 and the second damping plate 4 in direct contact to provide rotational damping based on friction.

[0053] In some embodiments, the first damping plate 3 and the second damping plate 4 can rotate relative to each other, and the first damping plate 3 and the second damping plate 4 are in indirect contact, for example through other friction components or through fluid contact, to provide rotational damping based on frictional force or the shear force or viscous resistance of the fluid.

[0054] In some embodiments, the interior of the damping cavity is at least partially filled with damping grease, for example, damping grease is filled between the first damping plate 3 and the second damping plate 4, or the interior of the damping cavity is filled with damping grease.

[0055] In one or more embodiments of this specification, see Figure 2 As shown, the outer periphery of the first damping plate 3 includes one or more first damping plate protrusions 31. See also: [link to previous description] Figure 16 As shown, the outer periphery of the first damping plate 3 includes three first damping plate protrusions 31. In some embodiments, the three first damping plate protrusions 31 are arranged in a circumferential array.

[0056] In some embodiments, see Figure 15As shown, the inner wall of the damping wheel body 2 is provided with a damping plate limiting groove 21, and the first damping plate protrusion 31 is disposed in the damping plate limiting groove 21 to achieve relative fixation in the radial direction. In some embodiments, the damping wheel body 2 rotates, and a force is applied to the first damping plate protrusion 31 through the damping plate limiting groove 21, so that the first damping plate 3 rotates with the rotation of the damping plate protrusion 31.

[0057] In one or more embodiments of this specification, the cross-section of the outer surface of the damping wheel and axle mechanism 1 is non-circular, and the inner edge of the second damping plate 4 matches the outer edge of the damping wheel and axle mechanism 1, so that the second damping plate 4 and the damping wheel and axle mechanism 1 are fixed relative to each other in the radial direction. For example, the cross-section of the outer surface of the damping wheel and axle mechanism 1 can be racetrack-shaped, rectangular, triangular, elliptical, etc.

[0058] In some embodiments, the damping wheel mechanism 1 may remain stationary (e.g., neither translation nor rotation occurs), thereby keeping the second damping plate 4 stationary and further generating damping between the first damping plate 3 and the second damping plate 4 when the damping wheel body 2 rotates.

[0059] In some embodiments, the damping wheel and axle mechanism 1 may translate but not rotate. In some embodiments, the damping wheel and axle mechanism 1 may rotate or both translate and rotate simultaneously, but its angular velocity of rotation is different from that of the damping wheel body 2.

[0060] In one or more embodiments of this specification, see Figures 3 to 5 As shown, the damping wheel and shaft mechanism 1 includes a first damping wheel and shaft 11 and a damping inner shell 12 sleeved on the first damping wheel and shaft 11. In some embodiments, the damping inner shell 12 is capable of rotating about the first damping wheel and shaft 11 in the forward and / or reverse directions.

[0061] In some embodiments, the damping housing 12 is capable of rotating in both the forward and reverse directions about the first damping wheel shaft 11.

[0062] In some embodiments, the damping housing 12 is configured to rotate in one direction, for example, the damping housing 12 can rotate in the forward direction about the first damping wheel shaft 11, or the damping housing 12 can rotate in the reverse direction about the first damping wheel shaft 11. In some embodiments, the unidirectional rotation of the damping housing 12 enables the damping wheel as a whole to provide rotational damping in one direction to impede rotation, and not to provide rotational damping in the other direction to allow smooth rotation.

[0063] For example, the damping shell 12 is configured to rotate forward about the first damping wheel shaft 11 but not backward about the first damping wheel shaft 11. When the damping wheel rotates forward, the damping wheel body 2 rotates forward. Since the damping shell 12 is allowed to rotate smoothly about the first damping wheel shaft 11, the static friction between the first damping plate 3 and the second damping plate 4 is much greater than the rotational resistance of the damping shell 12, thereby keeping the damping wheel body 2 and the damping shell 12 rotating synchronously and achieving smooth forward rotation of the entire damping wheel. When the damping wheel rotates backward, the damping wheel body 2 rotates backward. Since the damping shell 12 cannot rotate backward about the first damping wheel shaft 11, the first damping plate 3 and the second damping plate 4 begin to rotate relative to each other, thereby providing reverse rotational damping.

[0064] For example, the damping shell 12 is configured to be able to rotate in the opposite direction about the first damping wheel shaft 11 but not in the forward direction about the first damping wheel shaft 11; when the damping wheel rotates in the opposite direction, the damping wheel body 2 rotates in the opposite direction. Since the damping shell 12 is allowed to rotate smoothly in the opposite direction about the first damping wheel shaft 11, the static friction between the first damping plate 3 and the second damping plate 4 is much greater than the rotational resistance of the damping shell 12, thereby keeping the damping wheel body 2 and the damping shell 12 rotating synchronously, realizing the smooth reverse rotation of the entire damping wheel; when the damping wheel rotates in the forward direction, the damping wheel body 2 rotates in the forward direction. Since the damping shell 12 cannot rotate in the forward direction about the first damping wheel shaft 11, the first damping plate 3 and the second damping plate 4 begin to rotate relative to each other, thereby starting to provide positive rotational damping.

[0065] In some possible embodiments, the damping housing 12 may also be fixedly connected to the first damping wheel axle.

[0066] In some embodiments, the damping wheel 2 is rotatable relative to the damping housing 12, and rotational damping of the damping wheel 2 relative to the damping housing 12 is provided by a first damping plate 3 and a second damping plate 4 located between the damping wheel 2 and the damping housing 12. See also [other embodiments]. Figure 5 As shown, a sealing ring 201 is provided between the damping wheel body 2 and the damping inner shell 12. In some embodiments, the sealing ring 201 may be located at both ends of the damping inner shell 12 to confine the damping fluid, such as damping grease, within the damping cavity, for example, between two sealing rings 201. In some embodiments, a bearing is provided between the damping wheel body 2 and the damping inner shell 12.

[0067] In some embodiments, the damping shell 12 provides the outer surface of the damping wheel and axle mechanism 1. In some embodiments, the cross-section of the outer surface of the damping shell 12 is non-circular, and the inner edge of the second damping plate 4 matches the outer edge of the damping shell 12, so that the second damping plate 4 and the damping shell 12 are fixed relative to each other in the radial direction. For example, the cross-section of the outer surface of the damping shell 12 can be racetrack-shaped, rectangular, triangular, elliptical, etc.

[0068] In one or more embodiments of this specification, a one-way bearing 13 is provided between the first damping wheel shaft 11 and the damping inner shell 12 to achieve unidirectional rotation between the damping inner shell 12 and the first damping wheel shaft 11. In some embodiments, a bearing housing space is formed between one or both ends of the damping inner shell 12 and the first damping wheel shaft 11, and the one-way bearing 13 is disposed within the bearing housing space. In some embodiments, the one-way bearing 13 may be a one-way needle roller bearing.

[0069] In one or more embodiments of this specification, the damping housing 12 includes a first damping housing 121 and a second damping housing 122, the first damping housing 121 and the second damping housing 122 being relative to a radial plane of the first damping wheel shaft 11 (e.g. Figure 4 The radial plane A) is arranged in a mirror-symmetric manner.

[0070] In some embodiments, both the first damping shell 121 and the second damping shell 122 have a stepped portion 123. In some embodiments, the first damping plate 3 and the second damping plate 4 are arranged between the stepped portion 123 of the first damping shell 121 and the stepped portion 123 of the second damping shell 122, and the positions of the first damping plate 3 and the second damping plate 4 are restricted by the two stepped portions 123. In some embodiments, the number of first damping plates 3 and second damping plates 4 can be multiple. In some embodiments, the first damping plates 3 and the second damping plates 4 can be arranged alternately. In some embodiments, multiple first damping plates 3 and second damping plates 4 are pressed together by the two stepped portions 123.

[0071] In some embodiments, the first damping inner shell 121 includes: a first portion with a larger outer diameter (e.g., Figure 4 The left end of the first damping shell 121 and the second part with a smaller outer diameter (e.g., the left end of the first damping shell 121) ... Figure 4 The step portion 123 of the first damping middle shell 121 is formed between the right end of the first damping middle shell 121 and the first and second portions.

[0072] In some embodiments, the second damping inner shell 122 includes: a third portion with a larger outer diameter (e.g., Figure 4 The right end of the second damping shell 122) and the fourth part with a smaller outer diameter (e.g.) Figure 4The step portion 123 of the second damping middle shell 122 is formed between the left end of the second damping middle shell 122, the third part, and the fourth part.

[0073] In some embodiments, a damping fluid, such as damping grease, may be filled between the stepped portion 123 of the first damping shell 121 and the stepped portion 123 of the second damping shell 122. In some embodiments, the damping fluid, such as damping grease, may further be filled between a first portion of the first damping shell 121 and the damping wheel 2 and / or between a third portion of the second damping shell 122 and the damping wheel 2.

[0074] In some embodiments, the first portion of the first damping housing 121 and the third portion of the second damping housing 122 further provide the aforementioned bearing accommodating space.

[0075] In some embodiments, the first portion of the first damping shell 121 and the third portion of the second damping shell 122 are further provided with sealing ring grooves for accommodating the aforementioned sealing ring 201.

[0076] In one or more embodiments of this specification, see Figures 6 to 11 As shown, the damping wheel and shaft mechanism 1 includes a second damping wheel and shaft 16.

[0077] In some embodiments, the damping wheel 2 is rotatable relative to the second damping wheel shaft 16, and the first damping plate 3 and the second damping plate 4 located between the damping wheel 2 and the second damping wheel shaft 16 provide rotational damping of the damping wheel 2 relative to the second damping wheel shaft 16.

[0078] In some embodiments, the second damping wheel shaft 16 provides the outer surface of the damping wheel shaft mechanism 1. In some embodiments, the cross-section of the outer surface of the second damping wheel shaft 16 is non-circular, and the inner edge of the second damping plate 4 matches the outer edge of the second damping wheel shaft 16, so that the second damping plate 4 and the second damping wheel shaft 16 are fixed relative to each other in the radial direction. Exemplarily, the cross-section of the outer surface of the second damping wheel shaft 16 can be racetrack-shaped, rectangular, triangular, elliptical, etc.

[0079] In one or more embodiments of this specification, one or both ends of the second damping wheel shaft 16 may be provided with one-way bearings 17 to achieve unidirectional rotation between the second damping wheel shaft 16 and the external mechanism. In some embodiments, the one-way bearing 17 may be a one-way needle roller bearing.

[0080] In some embodiments, a bearing 202 is provided between the damping wheel body 2 and the second damping wheel shaft 16. In some embodiments, a bearing 202 is provided on each side of the second damping wheel shaft 16 to confine the damping fluid, such as damping grease, within the damping cavity, for example, between the two bearings 202.

[0081] In some embodiments, a boss 161 is formed on one side of the second damping wheel shaft 16, and an elastic retaining ring 162 is provided on the other side of the second damping wheel shaft 16. In some embodiments, a groove for assembling the elastic retaining ring 162 is provided on the other side of the second damping wheel shaft 16. In some embodiments, the two bearings 202, the first damping plate 3, and the second damping plate 4 are disposed between the boss 161 and the elastic retaining ring 162.

[0082] In some embodiments, the damping wheel shaft mechanism 1 is provided with two retaining rings 104, for example, the second damping wheel shaft 16 is provided with two retaining rings 104, and the first damping plate 3 and the second damping plate 4 are located between the two retaining rings. Continuing the previous example, the two bearings 202, the two retaining rings 104, and the first damping plate 3 and the second damping plate 4 are provided between the boss 161 and the elastic retaining ring 162.

[0083] In one or more embodiments of this specification, there are multiple first damping plates 3 and second damping plates 4, and the first damping plates 3 and second damping plates 4 are alternately arranged. In some embodiments, one or more second damping plates 4 are provided between two adjacent first damping plates 3. In some embodiments, one or more first damping plates 3 are provided between two adjacent second damping plates 4. The plurality of first damping plates 3 and second damping plates 4 provides greater rotational damping.

[0084] In some embodiments, the quantity and alternation of the first damping plate 3 and the second damping plate 4 can be applied to the structure of the first damping wheel shaft 11 described above, and can also be applied to the structure of the second damping wheel shaft 16 described above.

[0085] In one or more embodiments of this specification, see Figures 12 to 14 As shown, the damping wheel and axle mechanism 1 includes a damping wheel and axle 10. At least one end of the damping wheel and axle 10 has a first opening 101, and a side of the damping wheel and axle 10 has a second opening 102 communicating with a damping cavity. The damping wheel and axle 10 has a damping wheel and axle channel 103 connecting the first opening 101 and the second opening 102. In some embodiments, the damping wheel and axle channel 103 is used to provide damping fluid, such as damping grease, to the interior of the damping cavity. In some embodiments, an oil nozzle 105 may be provided at the first opening 101 to close the damping wheel and axle channel 103.

[0086] In some embodiments, the damping wheel shaft channel structure of the damping wheel shaft 10 can be applied to the first damping wheel shaft 11 described above, or it can be applied to the second damping wheel shaft 16 described above.

[0087] In some embodiments, a gap exists between the first damping plate 3 and the damping wheel shaft 10. In some embodiments, a second opening 102 faces one of the gaps between the first damping plate 3 and the damping wheel shaft 10 to provide damping fluid into the gap and to provide the damping fluid to other areas inside the damping cavity through the gap. In some embodiments, there are multiple second openings 102, each facing multiple gaps between the first damping plate 3 and the damping wheel shaft 10 to provide damping fluid into the gap and to provide the damping fluid to other areas inside the damping cavity through the gap.

[0088] In one or more embodiments of this specification, the damping wheel body 2 is provided with a rubber coating 5. In some embodiments, the damping wheel body 2 has two rubber coating limiting portions 22, and the rubber coating 5 is located between the two rubber coating limiting portions 22. In some embodiments, the rubber coating 5 at least partially covers the rubber coating limiting portions 22. The rubber coating limiting portions 22 are used for the axial positioning of the rubber coating 5 on the damping wheel body 2.

[0089] In some embodiments, the damping wheel body 2 is further provided with one or more rubber-coated limiting grooves 23. In some embodiments, the rubber-coated limiting grooves 23 may extend along the axial direction of the damping wheel body 2. In some embodiments, the rubber-coated limiting grooves 23 may further extend to the rubber-coated limiting portion 22. In some embodiments, the rubber-coated limiting grooves 23 are used to increase the contact area with the rubber coating 5, making the rubber coating 5 more firmly fixed.

[0090] In one or more embodiments of this specification, the damping wheel may include a damping wheel axle mechanism 1, a damping wheel body 2, and a damping plate, wherein the damping wheel body 2 is rotatable relative to the damping wheel axle mechanism 1. In this embodiment, the damping wheel axle mechanism 1 may be the aforementioned damping wheel axle mechanism 1, and the damping wheel body 2 may be the aforementioned damping wheel body 2, therefore, further details will not be provided.

[0091] In some embodiments, a damping cavity is formed between the damping wheel shaft mechanism 1 and the damping wheel body 2. The damping cavity is provided with a damping plate inside. The damping plate is fixed to the damping wheel shaft mechanism 1 in the radial direction or the damping plate is fixed to the damping wheel body 2 in the radial direction.

[0092] For example, the damping plate and the damping wheel axle mechanism 1 are fixed relative to each other in the radial direction. The damping plate can rotate with the damping wheel axle mechanism 1 or remain stationary when the damping wheel axle mechanism 1 is stationary. When relative rotation occurs between the damping plate and the damping wheel body 2, direct or indirect friction occurs between the damping plate and the damping wheel body 2 to provide rotational damping. In some embodiments, damping grease may be provided between the damping plate and the damping wheel body 2.

[0093] For example, the damping plate and the damping wheel 2 are fixed relative to each other in the radial direction. The damping plate can rotate with the rotation of the damping wheel 2, or remain stationary when the damping wheel 2 is stationary. When relative rotation occurs between the damping plate and the damping wheel axle mechanism 1, direct or indirect friction occurs between the damping plate and the damping wheel axle mechanism 1 to provide rotational damping. In some embodiments, damping grease may be provided between the damping plate and the damping wheel axle mechanism 1.

[0094] In one or more embodiments of this specification, the aforementioned damping plate includes a third damping plate and a fourth damping plate. The third damping plate abuts against the inner wall of the damping wheel body 2, and the fourth damping plate is fixed radially relative to the damping wheel shaft mechanism 1. In this embodiment, the third and fourth damping plates can rotate relative to each other to provide rotational damping based on the friction between the third and fourth damping plates; simultaneously, the third damping plate can also rotate relative to the damping wheel body 2 to provide rotational damping based on the friction between the third damping plate and the damping wheel body 2, to adapt to rotational damping requirements under different conditions.

[0095] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) the damping wheel body and the damping wheel shaft mechanism can rotate relative to each other, and damping is provided by the damping plate, so that the damping wheel can provide rolling friction while providing rotational damping; (2) by arranging the first damping plate and the second damping plate, the first damping plate and the second damping plate can rotate relative to each other, thereby providing greater rotational damping through the large-area friction of the first damping plate and the second damping plate; (3) by filling with damping grease, the rotational damping is further improved by the fluid shear force or viscous resistance of the damping grease; (4) by the protrusion and damping of the first damping plate. The engagement of the damping plate limiting groove causes the first damping plate to rotate with the rotation of the damping wheel body; (5) the engagement of the non-circular surface of the damping wheel shaft mechanism and the second damping plate transforms the relative rotation between the damping wheel body and the damping wheel shaft mechanism into the relative rotation between the first damping plate and the second damping plate to provide damping; (6) by arranging the damping middle shell and defining the rotation direction of the damping middle shell relative to the first damping wheel shaft, the directional requirements for providing damping are met; (7) by alternating the arrangement of multiple first damping plates and second damping plates, greater rotational damping is provided; (8) a damping wheel shaft channel is arranged to allow the addition of damping grease. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced can be any one or a combination of the above, or any other possible beneficial effects.

[0096] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A damped wheel, characterized in that The damping wheel shaft mechanism (1), the damping wheel body (2), the first damping sheet (3), and the second damping sheet (4) are included. The damping wheel body (2) is rotatable relative to the damping wheel shaft mechanism (1). A damping cavity is formed between the damping wheel shaft mechanism (1) and the damping wheel body (2), and the first damping sheet (3) and the second damping sheet (4) are arranged inside the damping cavity, the first damping sheet (3) and the second damping sheet (4) are in direct or indirect contact, the first damping sheet (3) is fixed relative to the damping wheel body (2) in the radial direction, and the second damping sheet (4) is fixed relative to the damping wheel shaft mechanism (1) in the radial direction. The inside of the damping cavity is at least partially filled with damping grease.

2. The damped wheel of claim 1, wherein, The outer periphery of the first damping sheet (3) includes one or more first damping sheet protrusions (31).

3. The damped wheel of claim 1, wherein, The inner wall of the damping wheel body (2) is provided with a damping sheet limiting groove (21), and the first damping sheet protrusion (31) is arranged in the damping sheet limiting groove (21). The outer surface of the damping wheel shaft mechanism (1) is non-circular in cross-section, and the inner edge of the second damping sheet (4) matches the outer edge of the damping wheel shaft mechanism (1) to fix the second damping sheet (4) relative to the damping wheel shaft mechanism (1) in the radial direction.

4. The damped wheel of claim 1, wherein, The damping wheel shaft mechanism (1) includes a first damping wheel shaft (11) and a damping middle shell (12) sleeved on the first damping wheel shaft (11), and the damping middle shell (12) is rotatable in a forward direction and / or a reverse direction around the first damping wheel shaft (11).

5. The damped wheel of any one of claims 1 to 4, wherein, The damping wheel body (2) is rotatable relative to the damping middle shell (12). The second damping sheet (4) is fixed relative to the damping middle shell (12) in the radial direction. A one-way bearing (13) is arranged between the first damping wheel shaft (11) and the damping middle shell (12).

6. The damped wheel of claim 5, wherein, The damping wheel shaft mechanism (1) includes a second damping wheel shaft (16).

7. The damped wheel of any one of claims 1 to 4, wherein, The damping wheel body (2) is rotatable relative to the second damping wheel shaft (16). The second damping sheet (4) is fixed relative to the second damping wheel shaft (16) in the radial direction. The number of the first damping sheets (3) and the second damping sheets (4) is multiple, and the first damping sheets (3) and the second damping sheets (4) are arranged alternately.

8. The damped wheel of claim 1, wherein, The damping wheel shaft mechanism (1) includes a damping wheel shaft (10).

9. The damped wheel of claim 1, wherein, At least one end of the damping wheel shaft (10) is provided with a first opening (101), the side surface of the damping wheel shaft (10) is provided with a second opening (102) in communication with the damping cavity, and the damping wheel shaft (10) has a damping wheel shaft channel (103) communicating the first opening (101) and the second opening (102). There is a gap between the first damping sheet (3) and the damping wheel shaft (10).

10. The damped wheel of claim 9, wherein, ​ The second opening (102) is directed to one of the gaps between the first damping sheet (3) and the damping wheel shaft (10); or, the number of the second openings (102) is multiple, and the multiple second openings (102) are respectively directed to multiple gaps between the first damping sheet (3) and the damping wheel shaft (10).

11. The damped wheel of any one of claims 1 to 4, wherein, The damping wheel shaft mechanism (1) is provided with two blocking rings (104), and the first damping sheet (3) and the second damping sheet (4) are located between the two blocking rings (104).

12. The damped wheel of any one of claims 1 to 4, wherein, The damping wheel body (2) is provided with a rubber coating (5). The damping wheel body (2) is provided with two rubber coating limiting portions (22), and the rubber coating (5) is located between the two rubber coating limiting portions (22). The rubber coating (5) at least partially covers the rubber coating limiting portion (22).

13. A damped wheel, characterized by Comprise: A damping wheel shaft mechanism (1), a damping wheel body (2), and a damping sheet; The damping wheel body (2) can rotate relative to the damping wheel shaft mechanism (1); The damping wheel shaft mechanism (1) and the damping wheel body (2) form a damping cavity, and the damping sheet is arranged inside the damping cavity, and the damping sheet is fixed relative to the damping wheel shaft mechanism (1) in the radial direction or the damping sheet is fixed relative to the damping wheel body (2) in the radial direction.

14. The damped wheel of claim 13, wherein, The damping sheet comprises a third damping sheet and a fourth damping sheet, the third damping sheet abuts against the inner wall of the damping wheel body (2), and the fourth damping sheet is fixed relative to the damping wheel shaft mechanism (1) in the radial direction.

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