Vibration reduction and noise reduction assembly, structure and saw blade base body

Abstract

The invention discloses a vibration reduction and noise reduction assembly, a structure and a saw blade base body, solves the problem that in the prior art, the control effect of vibration generated in the production, manufacturing and using process of components is poor, and has the beneficial effects of effectively absorbing vibration and reducing noise, and according to the specific scheme, the vibration reduction and noise reduction assembly comprises a plurality of sets of asymmetric star-shaped units; the plurality of groups of asymmetric star-shaped units are sequentially connected into a row or a column along the polar coordinate direction, or the plurality of groups of asymmetric star-shaped units are arranged in a multi-row and multi-column manner along the polar coordinate direction, and when the plurality of groups of asymmetric star-shaped units are arranged in a multi-row and multi-column manner, two adjacent asymmetric star-shaped units in each row are connected, and two adjacent asymmetric star-shaped units in each column are connected; the width of one side of the vibration and noise reduction assembly in the polar coordinate direction is larger than that of the other side; the asymmetric star-shaped unit is provided with at least four corners outwards in the first plane, the multiple corners are sequentially connected in the first plane, and part of the corners are arranged towards the first side of the asymmetric star-shaped unit.

Description

Technical Field

[0001] The invention relates to the technical field of vibration reduction and noise reduction, in particular to a vibration reduction and noise reduction component, structure and saw blade substrate. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] In the fields of industrial production, processing and application, many components will generate noise and vibration during use, which not only affects the comfort of the working environment, but may also affect the use accuracy of the components. For example, circular saw blades, which are cutting tools, are widely used in construction, woodworking, metal processing, stone processing and other industries. The vibration generated by circular saw blades during work affects their cutting accuracy. In the prior art, the vibration reduction method of circular saw blades is to set vibration absorbing grooves, and reduce vibration and noise through hollow vibration absorbing grooves, which has the problem of poor noise control effect. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a vibration-damping and noise-reducing component that can effectively provide a damping effect by utilizing elasticity, thereby achieving the effect of reducing vibration and noise.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: A vibration reduction and noise reduction component comprises a plurality of asymmetric star-shaped units, wherein the plurality of asymmetric star-shaped units are sequentially connected in a row or a column along a polar coordinate direction, or the plurality of asymmetric star-shaped units are arranged in a plurality of rows and columns along a polar coordinate direction, and when the plurality of asymmetric star-shaped units are arranged in a plurality of rows and columns, two adjacent asymmetric star-shaped units in each row are connected, and two adjacent asymmetric star-shaped units in each column are connected; The width of the vibration reduction and noise reduction component on one side along the polar coordinate direction is greater than the width on the other side; The asymmetric star-shaped unit is hollow, and at least four corners are arranged outward in the first plane. The multiple corners are connected in sequence in the first plane, wherein some of the corners are arranged toward the first side of the asymmetric star-shaped unit, and other some of the corners are arranged toward the second side of the asymmetric star-shaped unit. The first side and the second side are arranged opposite to each other, and the distance between the two corners toward the second side of the asymmetric star-shaped unit is greater than the distance between the two corners toward the first side.

[0006] The vibration damping and sound-absorbing component as described above includes multiple groups of asymmetric star-shaped units, which can be arranged in rows or connected in sequence in a row. Because the asymmetric star-shaped unit is hollow and has at least four corners, the directions of some corners are opposite to the directions of other corners, so that the asymmetric star-shaped unit can rebound when compressed. The vibration damping and sound-absorbing component composed of multiple groups of asymmetric star-shaped units can effectively reduce noise and slow down vibration propagation during the compression process, thereby achieving the purpose of vibration damping and sound absorbing; and the multiple groups of asymmetric star-shaped units can effectively improve the rigidity of the vibration damping and sound-absorbing component and increase the overall complexity.

[0007] A vibration reduction and noise reduction component as described above, wherein the asymmetric star-shaped unit is provided with four corners outwardly in the first plane, and also with four corners inwardly, the outward corners and the inward corners are arranged alternately in sequence, the outwardly arranged corners are the first corner, the second corner, the third corner and the fourth corner in sequence, the first corner and the second corner have the same angle, the third corner and the fourth corner have the same angle, and the third corner has a smaller angle than the first corner; A vibration reduction and noise reduction assembly as described above, wherein the distance between the third angle and the fourth angle is greater than the distance between the first angle and the second angle; The interval angle between the third angle and the fourth angle is greater than the interval angle between the first angle and the second angle, so that the third angle and the fourth angle protrude more outward relative to the first angle and the second angle, thereby satisfying that the corner points of the first angle and the fourth angle in polar coordinates are located in the same radial direction, and the corner points of the second angle and the third angle in polar coordinates are in another radial direction.

[0008] A vibration reduction and noise reduction component as described above, wherein the lengths of the two sides of the first angle are the same, the lengths of the two sides of the second angle are the same, and the angle between the first angle and the second angle may be 60°; The length of one side of the third corner close to the fourth corner is greater than the length of the other side, and the length of one side of the fourth corner close to the third corner is greater than the length of the other side, so that the third corner protrudes in a direction away from the fourth corner, and the fourth corner protrudes in a direction away from the third corner.

[0009] A vibration reduction and noise reduction assembly as described above, wherein a first connecting rod is arranged at the connection between the first angle and the second angle in the asymmetric star-shaped unit, a second connecting rod is arranged between the second angle and the third angle, a third connecting rod is arranged between the third angle and the fourth angle, and a fourth connecting rod is arranged between the fourth angle and the first angle, the free end of the first connecting rod is flush with the first angle and the second angle, and the free end of the third connecting rod is arranged beyond the third angle and the fourth angle; The first connecting rod and the third connecting rod are located on the same straight line, the first connecting rod and the third connecting rod are located in the same radial direction under polar coordinates, and the second connecting rod and the fourth connecting rod are located on the same arc line.

[0010] In the second aspect, the present invention also provides a vibration-damping and noise-absorbing structure, comprising a plurality of fan-shaped frames, wherein at least two groups of the vibration-damping and noise-absorbing components are arranged inside the fan-shaped frames along the radial direction of the fan-shaped frames, and a mass block is connected between two adjacent groups of vibration-damping and noise-absorbing components, the innermost vibration-damping and noise-absorbing component is connected to the first curved surface of the fan-shaped frame, and the outer side of the outermost vibration-damping and noise-absorbing component is connected to the second curved surface of the fan-shaped frame.

[0011] The vibration-damping and noise-absorbing structure as described above includes a plurality of fan-shaped frames, each of which is provided with a vibration-damping and noise-absorbing component along its radial direction, and a mass block is connected between two adjacent vibration-damping and noise-absorbing components, so that a resonant damper is formed in the fan-shaped frame. The fan-shaped frame, the vibration-damping and noise-absorbing component and the mass block are located in the same plane, and a damping effect can be generated when the object to which the vibration-damping and noise-absorbing structure is applied generates vibration, thereby effectively absorbing vibration and reducing noise.

[0012] In the above-mentioned vibration reduction and noise reduction structure, when there are multiple fan-shaped frames, a damping assembly is connected between two adjacent fan-shaped frames, and the damping assembly includes multiple groups of asymmetric star-shaped units, and two adjacent asymmetric star-shaped units in the damping assembly are connected; In order to avoid a rigid connection between the outermost sector-shaped frame and the object to which it is applied, a damping component is also provided on the outer side surface of the outermost sector-shaped frame.

[0013] In a third aspect, the present invention further provides a vibration reduction and noise reduction structure, comprising a plurality of groups of the vibration reduction and noise reduction components, wherein the plurality of groups of vibration reduction and noise reduction components form a three-dimensional vibration reduction and noise reduction structure; The asymmetric star-shaped unit is further provided with four corners in the second plane. The first plane is perpendicular to or intersects with the second plane, and the second plane passes through the first connecting rod and the third connecting rod.

[0014] In a fourth aspect, the present invention further provides a saw blade base, wherein a plurality of vibration absorbing grooves are arranged in the radial direction of the saw blade base, wherein the vibration absorbing grooves are provided with the vibration reduction and noise reduction structure, wherein a distance is set between the vibration absorbing grooves and the mounting holes of the saw blade base, and a distance is set between the vibration absorbing grooves and the saw teeth of the saw blade base.

[0015] The beneficial effects of the present invention are as follows: 1) The present invention provides a vibration-damping and sound-absorbing component, which includes a plurality of groups of asymmetric star-shaped units. The plurality of groups of asymmetric star-shaped units can be arranged in rows or connected in sequence in a row. Because the asymmetric star-shaped unit is hollow and has at least four corners, the directions of some corners are opposite to the directions of other corners, so that the asymmetric star-shaped unit can rebound when compressed. The vibration-damping and sound-absorbing component composed of the plurality of groups of asymmetric star-shaped units can effectively reduce noise and slow down vibration propagation during the compression process, thereby achieving the purpose of vibration-damping and sound-absorbing; and the plurality of groups of asymmetric star-shaped units can effectively improve the rigidity of the vibration-damping and sound-absorbing component and increase the overall complexity.

[0016] 2) The asymmetric star-shaped unit structure in the present invention is reasonably arranged, with four corners arranged outwardly. Through the reasonable arrangement of the angles and positions of the four corners, the third corner protrudes in a direction away from the fourth corner, and the fourth corner protrudes in a direction away from the third corner, which is conducive to its deformation when absorbing vibration and its rapid recovery after deformation.

[0017] 3) The vibration-damping and noise-absorbing structure of the present invention comprises a plurality of fan-shaped frames, each of which is provided with a vibration-damping and noise-absorbing component along its radial direction, and a mass block is connected between two adjacent vibration-damping and noise-absorbing components, so that a resonant damper is formed in the fan-shaped frame. The fan-shaped frame, the vibration-damping and noise-absorbing component and the mass block are located in the same plane, and a damping effect can be generated when the object to which the vibration-damping and noise-absorbing structure is applied generates vibration, thereby effectively absorbing vibration and reducing noise.

[0018] 4) The asymmetric star-shaped unit in the present invention can also be set with other angles outward in the second plane, so that the asymmetric star-shaped unit forms a three-dimensional structure. When multiple groups of asymmetric star-shaped units in the vibration-damping and sound-absorbing assembly are arranged in multiple rows and columns, a three-dimensional vibration-damping and sound-absorbing structure is formed, and then by adjusting the height change, a vibration-damping and sound-absorbing structure with a set height is formed.

[0019] 5) The vibration-damping and noise-absorbing structure of the present invention can be applied to the saw blade base. The vibration-damping and noise-absorbing structure is arranged in the vibration-absorbing groove, which can effectively block the vibration propagation, reduce the vibration level generated by the circular saw blade during the cutting process, minimize noise pollution, and improve the quietness and comfort of the working environment; reduce the impact of the circular saw blade vibration on the cutting material, and improve the cutting accuracy and processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0021] Figure 1 Schematic diagram of an asymmetric star-shaped unit in a vibration-damping and sound-absorbing component according to one or more embodiments of the present invention.

[0022] Figure 2 It is a schematic diagram of an asymmetric star-shaped unit in a vibration-damping and sound-absorbing component in polar coordinates according to one or more embodiments of the present invention.

[0023] Figure 3 It is a schematic diagram of the connection between a vibration-damping and noise-absorbing component and a mass block in a vibration-damping and noise-absorbing structure according to one or more embodiments of the present invention.

[0024] Figure 4 Schematic diagram of a vibration reduction and noise reduction structure according to one or more embodiments of the present invention.

[0025] Figure 5 It is a schematic diagram of a one-dimensional spring-mass system formed by a vibration-damping and noise-absorbing structure according to one or more embodiments of the present invention.

[0026] Figure 6 is a schematic diagram of a saw blade base according to one or more embodiments of the present invention.

[0027] Figure 7 It is a schematic diagram of an asymmetric star-shaped unit in a vibration reduction and noise reduction structure in Embodiment 3 of the present invention.

[0028] Figure 8 It is a schematic diagram of a three-dimensional vibration reduction and noise reduction structure in the third embodiment of the present invention.

[0029] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0030] in: 1. First angle, 2. First connecting rod, 3. Second angle, 4. Second connecting rod, 5. Third angle, 6. Third connecting rod, 7. Fourth angle, 8. Fourth connecting rod, 9. Vibration reduction and silencer assembly, 10. Mass block, 11. Fan-shaped frame, 12. Damping assembly, 13. Saw blade base, 14. Vibration absorbing groove, 15. Asymmetric star-shaped unit. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof; As introduced in the background technology, the prior art has the problem of poor vibration control effect during the production, manufacturing and use of components. In order to solve the above technical problems, the present invention proposes a vibration reduction and silencer component.

[0033] Embodiment 1 In a typical embodiment of the present invention, a vibration reduction and noise reduction component includes a plurality of groups of asymmetric star-shaped units 15, wherein the plurality of groups of asymmetric star-shaped units 15 are sequentially connected in a row or a column along the polar coordinate direction, or the plurality of groups of asymmetric star-shaped units 15 are arranged in a plurality of rows and columns along the polar coordinate direction. When the plurality of groups of asymmetric star-shaped units 15 are arranged in a plurality of rows and columns, two adjacent asymmetric star-shaped units 15 in each row are connected, and two adjacent asymmetric star-shaped units 15 in each column are connected; The width of the vibration-damping and noise-reducing component 9 on one side along the polar coordinate direction is greater than the width on the other side, that is, along the polar coordinate direction, the width of the vibration-damping and noise-reducing component 9 near the origin is smaller than the width on the other side; The asymmetric star-shaped unit 15 is hollow, and at least four corners are arranged outward in the first plane. The multiple corners are connected in sequence in the first plane, wherein some of the corners are arranged toward the first side of the asymmetric star-shaped unit 15, and other some of the corners are arranged toward the second side of the asymmetric star-shaped unit 15. The first side and the second side are arranged opposite to each other, and the distance between the two corners toward the second side of the asymmetric star-shaped unit 15 is greater than the distance between the two corners toward the first side.

[0034] In this embodiment, reference Figure 1 and Figure 2 As shown, the asymmetric star-shaped unit 15 is provided with four corners outwardly in the first plane, and also with four corners inwardly, the outward corners and the inward corners are arranged alternately in sequence, the outwardly arranged corners are the first corner 1, the second corner 3, the third corner 5 and the fourth corner 7 in sequence, the first corner 1 and the second corner 3 have the same angle, the third corner 5 and the fourth corner 7 have the same angle, the third corner 5 has a smaller angle than the first corner 1, and the distance between the third corner 5 and the fourth corner 7 is greater than the distance between the first corner 1 and the second corner 3; It is easy to understand that the first angle 1 and the second angle 3 are closer to the origin of the polar coordinates in the polar coordinates, and the interval angle between the third angle 5 and the fourth angle 7 is greater than the interval angle between the first angle 1 and the second angle 3, so that the third angle 5 and the fourth angle 7 protrude more outward relative to the first angle 1 and the second angle 3, thereby satisfying that the corner points of the first angle 1 and the fourth angle 7 in the polar coordinates are in the same radial direction, and the corner points of the second angle 3 and the third angle 5 in the polar coordinates are in another radial direction.

[0035] The lengths of the two sides of the first angle 1 are the same, the lengths of the two sides of the second angle 3 are the same, and the angle between the first angle 1 and the second angle 3 may be 60°; In this embodiment, the length of one side of the third corner 5 close to the second corner 3 is the same as the length of the side of the second corner 3, the length of one side of the third corner 5 close to the fourth corner 7 is greater than the length of the other side, the length of one side of the fourth corner 7 close to the first corner 1 is the same as the length of the side of the first corner 1, and the length of one side of the fourth corner 7 close to the third corner 5 is greater than the length of the other side, so that the third corner 5 protrudes in the direction away from the fourth corner 7, and the fourth corner 7 protrudes in the direction away from the third corner 5.

[0036] In addition, it should be noted that in the asymmetric star-shaped unit 15, a first connecting rod 2 is provided at the connection between the first corner 1 and the second corner 3, a second connecting rod 4 is provided between the second corner 3 and the third corner 5, a third connecting rod 6 is provided between the third corner 5 and the fourth corner 7, and a fourth connecting rod 8 is provided between the fourth corner 7 and the first corner 1, and the free end of the first connecting rod 2 is flush with the first corner 1 and the second corner 3, and the free end of the third connecting rod 6 is provided beyond the third corner 5 and the fourth corner 7; The first connecting rod 2 and the third connecting rod 6 are located in the same straight line, the first connecting rod 2 and the third connecting rod 6 are located in the same radial direction under the polar coordinates, and the second connecting rod 4 and the fourth connecting rod 8 are located in the same arc; in this way, the asymmetric star-shaped unit has a necking section in the middle along the polar coordinate direction, so that the other side of the first corner 1 away from the second corner 3 and the other side of the second corner 3 away from the first corner 1 are arranged parallel to each other.

[0037] Moreover, when the vibration reduction and silencer assembly 9 is connected, the third connecting rod 6 of the previous asymmetric star-shaped unit is connected to the first connecting rod 2 of the next asymmetric star-shaped unit, the second connecting rod 4 of the asymmetric star-shaped unit on one side is connected to the fourth connecting rod 8 of the asymmetric star-shaped unit on the other side, and each connecting rod is connected to the inward angle of the asymmetric star-shaped unit.

[0038] The vibration damping and noise reduction component 9 provided in this embodiment includes multiple groups of asymmetric star-shaped units 15. The multiple groups of asymmetric star-shaped units 15 can be arranged in rows or connected in a row in sequence. Because the asymmetric star-shaped unit is hollow and has at least four corners, the directions of some corners are opposite to the directions of other corners, so that the asymmetric star-shaped unit 15 can rebound when compressed. The vibration damping and noise reduction component 9 composed of multiple groups of asymmetric star-shaped units can effectively reduce noise and slow down vibration propagation during the compression process, thereby achieving the purpose of vibration damping and noise reduction; and the multiple groups of asymmetric star-shaped units 15 can effectively improve the rigidity of the vibration damping and noise reduction component 9 and increase the overall complexity.

[0039] Embodiment 2 This embodiment provides a vibration reduction and noise reduction structure. Figure 4As shown, it includes a plurality of fan-shaped frames 11, and at least two groups of vibration reduction and noise reduction components 9 described in the first embodiment are arranged in the fan-shaped frames 11 along the radial direction of the fan-shaped frames 11. In this embodiment, two groups of vibration reduction and noise reduction components 9 are arranged in each fan-shaped frame 11. Figure 3 As shown, a mass block 10 is connected between two adjacent groups of vibration-damping and noise-absorbing components 9 , the innermost vibration-damping and noise-absorbing component 9 is connected to the first curved surface of the fan-shaped frame 11 , and the outer side of the outermost vibration-damping and noise-absorbing component 9 is connected to the second curved surface of the fan-shaped frame 11 .

[0040] The mass block 10 may also be in a sector shape, and the mass block 10 has a set mass.

[0041] It should be explained that when the fan-shaped frame 11 is provided at multiple locations, Figure 4 As shown, along the polar coordinate direction, the length of the sector frame 11 gradually increases, and the width of the sector frame 11 gradually increases; a damping assembly 12 is connected between two adjacent sector frames 11, and the damping assembly 12 includes multiple groups of asymmetric star-shaped units 15, and multiple groups of asymmetric star-shaped units 15 in the damping assembly 12 are connected in a row, and two adjacent asymmetric star-shaped units 15 in the damping assembly 12 are connected; the outer side surface of the outermost sector frame 11 is also provided with a damping assembly 12, and the number of two asymmetric star-shaped units 15 in the damping assembly 12 is greater than the number of asymmetric star-shaped units 15 in a single row in the vibration reduction and silencer assembly 9. Figure 5 As shown, such a vibration-damping and noise-absorbing structure forms a one-dimensional spring-mass system, in which: represents the jth vibration reduction and noise reduction structure, j is a natural number, Indicates the stiffness of the vibration reduction and noise reduction component 9, M j represents the mass of the mass block 10 in the vibration and noise reduction structure; represents the damping of the vibration reduction and noise reduction component 9, represents the stiffness of the asymmetric star element 15, m j Represents the mass of the asymmetric star unit 15.

[0042] The vibration reduction and noise reduction structure provided in this embodiment includes a plurality of fan-shaped frames 11, and a vibration reduction and noise reduction component 9 is arranged in each fan-shaped frame 11 along its radial direction, and a mass block 10 is connected between two adjacent vibration reduction and noise reduction components 9, so that a resonant damper is formed in the fan-shaped frame 11. The fan-shaped frame 11, the vibration reduction and noise reduction component 9 and the mass block 10 are located in the same plane, which can generate a damping effect when the object to which the vibration reduction and noise reduction structure is applied generates vibration, thereby effectively absorbing vibration and reducing noise.

[0043] Embodiment 3 This embodiment provides a vibration reduction and noise reduction structure, including multiple groups of vibration reduction and noise reduction components 9 described in the first embodiment, and the multiple groups of vibration reduction and noise reduction components 9 form a three-dimensional vibration reduction and noise reduction structure; refer to Figure 7 As shown, the asymmetric star-shaped unit 15 is further provided with four corners in the second plane, the first plane is perpendicular to or intersects with the second plane, and the second plane passes through the first connecting rod 2 and the third connecting rod 6, so that the asymmetric star-shaped unit 15 is provided with eight corners outwardly, and the eight corners are located in two planes, so that the asymmetric star-shaped unit 15 forms a three-dimensional structure, so that when multiple groups of asymmetric star-shaped units 15 in the vibration reduction and noise reduction assembly 9 are arranged in multiple rows and columns, a three-dimensional vibration reduction and noise reduction structure is formed; refer to Figure 8 As shown, when multiple layers, multiple rows, and multiple columns of vibration-damping and noise-absorbing components 9 are further arranged along the height direction of the multiple rows and multiple columns of vibration-damping and noise-absorbing components 9, a vibration-damping and noise-absorbing structure with a set height is formed.

[0044] Thus, it can be understood that the three-dimensional vibration reduction and noise reduction structure can be applied to spaces in three-dimensional space where vibration reduction and noise reduction are required.

[0045] Embodiment 4 This embodiment provides a saw blade substrate, referring to Figure 6 As shown, the saw blade base 13 can be a whole, or the saw blade base 13 is assembled from two or more saw blade bodies, a plurality of vibration absorbing grooves 14 are arranged in the radial direction of the saw blade base 13, the vibration absorbing grooves 14 may or may not penetrate the saw blade base 13, or the depth of the vibration absorbing grooves 14 is less than the thickness of the saw blade base 13, or even the depth of the vibration absorbing grooves 14 is less than the thickness of a single piece of the saw blade base 13, each vibration absorbing groove 14 is fan-shaped, and the interval between two adjacent vibration absorbing grooves 14 is set at a set angle, a vibration reduction and noise reduction structure described in Example 2 is arranged at the vibration absorbing groove 14, a distance is set between the vibration absorbing groove 14 and the mounting hole of the saw blade base, and a distance is set between the vibration absorbing groove 14 and the saw teeth of the saw blade base 13.

[0046] Specifically, the vibration absorbing groove 14 is arranged on the surface of the saw blade base 13, and a plurality of fan-shaped frames 11 can be directly processed on the surface of the saw blade base 13 by a photolithography machine. The vibration reduction and silencer assembly 9 can be printed by an existing 3D printer. After the printing is completed, the vibration reduction and silencer assembly 9 is connected to the mass block 10, and the vibration reduction and silencer assembly 9 is respectively connected to the two sides of the fan-shaped frame 11.

[0047] In this way, when the saw blade base 13 is working, the vibration reduction and noise reduction structure is arranged in the vibration absorbing groove 14, which can effectively block the vibration propagation, reduce the vibration level generated by the circular saw blade during the cutting process, minimize noise pollution, and improve the quietness and comfort of the working environment; reduce the impact of the circular saw blade vibration on the cutting material, and improve the cutting accuracy and processing efficiency.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vibration reduction and noise reduction component, characterized in that: It includes multiple groups of asymmetric star-shaped units, which are sequentially connected in a row or a column along the polar coordinate direction, or multiple groups of asymmetric star-shaped units are arranged in multiple rows and columns along the polar coordinate direction. When the multiple groups of asymmetric star-shaped units are arranged in multiple rows and columns, two adjacent asymmetric star-shaped units in each row are connected, and two adjacent asymmetric star-shaped units in each column are connected; The width of the vibration reduction and noise reduction component on one side along the polar coordinate direction is greater than the width on the other side; The asymmetric star-shaped unit is hollow, and at least four corners are arranged outward in the first plane. The multiple corners are connected in sequence in the first plane, wherein some of the corners are arranged toward the first side of the asymmetric star-shaped unit, and other some of the corners are arranged toward the second side of the asymmetric star-shaped unit. The first side and the second side are arranged opposite to each other, and the distance between the two corners toward the second side of the asymmetric star-shaped unit is greater than the distance between the two corners toward the first side.

2. A vibration reduction and noise reduction assembly according to claim 1, characterized in that: The asymmetric star-shaped unit has four corners arranged outwardly in the first plane and four corners arranged inwardly as well. The outward corners and the inward corners are arranged alternately in sequence. The outward corners are the first angle, the second angle, the third angle and the fourth angle in sequence. The angles of the first angle and the second angle are the same, the angles of the third angle and the fourth angle are the same, and the angle of the third angle is smaller than that of the first angle.

3. A vibration reduction and noise reduction assembly according to claim 1, characterized in that: The distance between the third angle and the fourth angle is greater than the distance between the first angle and the second angle; The interval angle between the third angle and the fourth angle is greater than the interval angle between the first angle and the second angle.

4. A vibration reduction and noise reduction assembly according to claim 2, characterized in that: The lengths of the two sides of the first angle are the same, and the lengths of the two sides of the second angle are the same; The length of one side of the third corner close to the fourth corner is greater than the length of the other side, and the length of one side of the fourth corner close to the third corner is greater than the length of the other side.

5. A vibration reduction and noise reduction assembly according to claim 2, characterized in that: In the asymmetric star-shaped unit, a first connecting rod is arranged at the connection between the first angle and the second angle, a second connecting rod is arranged between the second angle and the third angle, a third connecting rod is arranged between the third angle and the fourth angle, and a fourth connecting rod is arranged between the fourth angle and the first angle. The free end of the first connecting rod is flush with the first angle and the second angle, and the free end of the third connecting rod is arranged beyond the third angle and the fourth angle.

6. A vibration reduction and noise reduction assembly according to claim 5, characterized in that: The first connecting rod and the third connecting rod are located on the same straight line, and the second connecting rod and the fourth connecting rod are located on the same arc.

7. A vibration reduction and noise reduction structure, characterized in that: It comprises a plurality of fan-shaped frames, in which at least two groups of vibration-damping and sound-absorbing components according to any one of claims 1 to 6 are arranged along the radial direction of the fan-shaped frames, a mass block is connected between two adjacent groups of vibration-damping and sound-absorbing components, the innermost vibration-damping and sound-absorbing component is connected to the first curved surface of the fan-shaped frame, and the outer side of the outermost vibration-damping and sound-absorbing component is connected to the second curved surface of the fan-shaped frame.

8. A vibration reduction and noise reduction structure according to claim 7, characterized in that: When there are multiple fan-shaped frames, a damping assembly is connected between two adjacent fan-shaped frames, and the damping assembly includes multiple groups of asymmetric star-shaped units, and two adjacent asymmetric star-shaped units in the damping assembly are connected; The outer side surface of the outermost fan-shaped frame is also provided with a damping component.

9. A vibration reduction and noise reduction structure, characterized in that: It comprises a plurality of groups of vibration-damping and noise-absorbing components according to any one of claims 1 to 6, wherein the plurality of groups of vibration-damping and noise-absorbing components form a three-dimensional vibration-damping and noise-absorbing structure; The asymmetric star-shaped unit is further provided with four corners in the second plane. The first plane is perpendicular to or intersects with the second plane, and the second plane passes through the first connecting rod and the third connecting rod.

10. A saw blade base, characterized in that a plurality of vibration absorbing grooves are arranged in the radial direction of the saw blade base, a vibration reduction and noise reduction structure as claimed in claim 7 is arranged at the vibration absorbing grooves, a distance is set between the vibration absorbing grooves and the mounting holes of the saw blade base, and a distance is set between the vibration absorbing grooves and the saw teeth of the saw blade base.

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