Vibration damping device and vibration damping system
By introducing the design of vibration isolation module and conductor module into the measuring device, especially adopting the first conductor unit and sound insulation module with smaller stiffness, the problem that traditional vibration reduction device fails to fully consider conductor noise is solved, and higher measurement accuracy and stability are achieved.
Patent Information
- Application Number
- CN202510658797.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2025-09-23
AI Technical Summary
The vibration reduction measures of traditional measurement systems fail to fully consider the impact of mechanical noise introduced by the conductors, resulting in insufficient measurement accuracy.
A vibration reduction device is designed, including a vibration isolation module and a conductor module. The conductor module consists of a first conductor unit with smaller stiffness and a second conductor unit with larger stiffness. The conductor stiffness is reduced by dispersing conductor branches and extending the conductor length. A sound insulation module is also provided to isolate external noise.
It effectively reduces the impact of vibration noise introduced by the ground and wires, and improves measurement accuracy and stability.
Smart Images
Figure CN120684496A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of measurement technology, and in particular to a vibration reduction device and a vibration reduction system. Background Art
[0002] Measuring equipment often requires high precision, and external vibrations can cause measurement errors. To ensure measurement accuracy, stability, and reliability, vibration reduction is generally required to eliminate or suppress the interference of external vibrations on the measurement process and results.
[0003] The traditional vibration reduction of the measurement system only considers the influence of the vibration from the ground on the measurement results. The vibration isolation system 2 is set between the ground and the measurement device 1 to eliminate the influence of the ground vibration on the measurement results. Please refer to Figure 1 , the vibration reduction is not comprehensive enough and the measurement accuracy needs to be improved. Summary of the Invention
[0004] The present invention provides a vibration reduction device and a vibration reduction system to solve the problems in the prior art that vibration reduction is not comprehensive enough and measurement accuracy needs to be improved.
[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0006] According to a first aspect of the present invention, there is provided a vibration damping device comprising:
[0007] A vibration isolation module, which is used to isolate the vibration transmission between the ground and the measuring device;
[0008] A conductor module, comprising: at least one conductor; one end of the conductor being connected to the measuring device;
[0009] The conductor includes: a first conductor unit and a second conductor unit sequentially distributed from one end to the other end; the stiffness of the first conductor unit is smaller than the stiffness of the second conductor unit.
[0010] Optionally, the wire includes multiple wire branches, and the multiple wire branches in the first wire unit are dispersed; and the multiple wire branches in the second wire unit are packaged together.
[0011] Optionally, the length of the first wire unit is greater than the straight-line distance;
[0012] Among them, the straight-line distance refers to the straight-line distance between one end of the first wire unit and the connection point of the measuring device; one end of the first wire unit refers to the end of the first wire unit away from the measuring device; the connection point of the measuring device refers to the connection point between the measuring device and the first wire unit.
[0013] Optionally, the length of the first wire unit is at least twice the straight-line distance.
[0014] Optionally, the stiffness of the first wire unit is much smaller than the stiffness of the second wire unit.
[0015] Optionally, the stiffness of the first wire unit is close to zero.
[0016] Optionally, it further includes: a sound insulation module, which is wrapped around the outside of the measuring device and is used to isolate external noise.
[0017] Optionally, the wire module passes through the sound insulation module, and the first wire unit is located inside the sound insulation module.
[0018] Optionally, the vibration isolation module is a passive vibration isolation module or an active vibration isolation module.
[0019] According to a second aspect of the present invention, there is provided a vibration reduction system comprising:
[0020] Measuring devices;
[0021] The vibration reduction device is any one of the vibration reduction devices described above, and is used to reduce vibration for the measuring device.
[0022] The vibration reduction device and vibration reduction system provided by the present invention find that not only ground vibration will affect the measurement of the measuring device, but the wires connected to the measuring device will also introduce mechanical noise, and the impact on the measurement results cannot be ignored. The present invention not only takes into account ground vibration reduction, but also takes into account the mechanical noise signals introduced by the wires, and designs a special wire module. By setting the wires in the wire module as a first wire unit and a second wire unit distributed in sequence, the stiffness of the first wire unit connected to the measuring device is smaller than the stiffness of the second wire unit, thereby reducing or even isolating the impact of the vibration introduced by the wire on the measurement results, and taking more comprehensive vibration reduction considerations, further improving the measurement accuracy.
[0023] In one optional solution, the stiffness of the first wire unit is reduced by dispersing it into multiple wire branches. Since the stiffness of a wire is proportional to the fourth power of its radius, dispersing the wire into multiple wire branches reduces the radius of each wire branch, thereby reducing its stiffness. Furthermore, since it is proportional to the fourth power of the radius, even if the sum of the stiffnesses of multiple wire analyses is analyzed, it is still much smaller than the stiffness of the second wire unit.
[0024] In an optional solution, the stiffness of the first wire unit is reduced by lengthening its length; since the stiffness of the wire is inversely proportional to the square of the length, the first wire unit is lengthened so that its length is greater than the straight-line distance, wherein the straight-line distance refers to the straight-line distance between one end of the first wire unit and the connection point of the measuring device; one end of the first wire unit refers to the end of the first wire unit away from the measuring device; the connection point of the measuring device refers to the connection point between the measuring device and the first wire unit; that is, the first wire unit is not connected to the measuring device in a straight line, but is bent, thereby reducing its stiffness.
[0025] In an optional solution, the first wire unit reduces its stiffness by spreading out through multiple wire branches and lengthening the length. The stiffness is reduced to a greater extent, almost to zero, and the vibration reduction effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0027] Figure 1 A schematic diagram of a vibration reduction device in the prior art;
[0028] Figure 2 is a schematic diagram of a vibration reduction device according to an embodiment of the present invention;
[0029] Figure 3 is a schematic diagram of a vibration reduction device according to another embodiment of the present invention;
[0030] Figure 4 FIG. 1 is a schematic diagram of a vibration reduction device according to another embodiment of the present invention.
[0031] Description of reference numerals:
[0032] 1- Measuring device;
[0033] 2-Vibration isolation module;
[0034] 31-conventional wire;
[0035] 32-wire;
[0036] 321-first conductor unit;
[0037] 3211-wire branch;
[0038] 322-second conductor unit;
[0039] 4- Sound insulation module. DETAILED DESCRIPTION
[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0041] In the description of the specification of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper part", "lower part", "upper end", "lower end", "lower surface", "upper surface", etc. are 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, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0042] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.
[0043] In the description of the present invention, "plurality" means multiple, such as two, three, four, etc., unless otherwise clearly defined.
[0044] In the description of the present invention, unless otherwise specified or limited, the term "connection" and other terms should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integration; it can mean mechanical connection, electrical connection, or mutual communication; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] The following specific embodiments are used to describe the technical solution of the present invention in detail. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
[0046] In one embodiment, a vibration reduction device is provided, please refer to Figure 2 , which includes: a vibration isolation module 2 and a conductor module. The vibration isolation module 2 is used to isolate the vibration transmission between the ground and the measuring device 1. The conductor module includes: at least one conductor 32, Figure 2The example includes a conductor 3. One end of the conductor 32 is connected to the measuring device. The conductor 32 includes a first conductor unit 321 and a second conductor unit 322 distributed sequentially from one end to the other. The stiffness of the first conductor unit 321 is smaller than that of the second conductor unit 322.
[0047] In practice, when the ground is below the measuring device 1, the vibration isolation module 2 is disposed between the measuring device 1 and the ground. In different implementations, the measuring device 1 may also be on another platform, such as a desktop, in which case the vibration isolation module is disposed between the measuring device 1 and the other platform.
[0048] As an implementation method, the vibration isolation module 2 may be a passive vibration isolation module, such as an air floating platform, a vibration damping pad, a negative stiffness system, and the like.
[0049] In different implementations, the vibration isolation module 2 may also be an active vibration isolation module, which monitors the vibration signal in real time and actively applies a reverse force or torque to offset the ground vibration.
[0050] In the prior art, the wires connecting the measuring devices are as follows Figure 1 As shown, a relatively thick conventional wire 31 is required for the wires in the measurement system to transmit various signals, generally including more than a dozen or even dozens of types. In order to avoid confusion in the lines, multiple wires are generally integrated and packaged into a relatively thick wire, which has great rigidity. Since the wire is generally connected to another device (power supply device and / or processor), the wire will also transmit mechanical noise signals. Therefore, in order to improve the measurement accuracy, it is necessary to eliminate the influence of this part of the mechanical noise signal. In the above embodiment of the present invention, the wire is set as a first wire unit and a second wire unit distributed in sequence from one end to the other end, wherein the stiffness of the first wire unit connected to the measuring device is set to be relatively small, thereby reducing the influence of the mechanical noise introduced by the wire. In summary, the present invention not only takes into account the noise influence caused by ground vibration, but also takes into account the mechanical noise influence caused by wire coupling. The vibration reduction considerations are more comprehensive, which further improves the measurement accuracy.
[0051] The stiffness of a conductor is related to its radius and length. The stiffness is proportional to the fourth power of the radius and inversely proportional to the square of the length. Therefore, the stiffness of the first conductor unit can be reduced by adjusting the radius and length to meet preset requirements.
[0052] In one embodiment, the arrangement is made from the perspective of radius: the conductor includes multiple conductor branches, multiple conductor branches 3211 in the first conductor unit are dispersed; multiple conductor branches in the second conductor unit are packaged together, please refer to Figure 2 . Figure 2 In the figure, three wire branches are taken as an example. In different embodiments, the number of wire branches may be other numbers.
[0053] It should be noted that each conductor branch may include one wire or multiple wires.
[0054] Since the stiffness is proportional to the fourth power of the radius, the change in the stiffness of the first wire unit is more significant when the radius is set. After the setting of the first wire unit in the above embodiment, the stiffness of the first wire unit is much smaller than the stiffness of the second wire unit, that is:
[0055] k1+k2+k3< <k;
[0056] Among them, k1, k2, and k3 are the stiffness of the three wire branches in the first wire unit respectively, and k is the stiffness of the second wire unit.
[0057] Although the change in the stiffness of the first wire unit is more significant when it is set in terms of radius, a certain degree of stiffness reduction can also be achieved when it is set in terms of length.
[0058] In another embodiment, the length of the first conductor unit is set to be greater than the linear distance. The linear distance refers to the linear distance between one end of the first conductor unit and the connection point of the measuring device; one end of the first conductor unit refers to the end of the first conductor unit that is away from the measuring device; and the connection point of the measuring device refers to the connection point between the measuring device and the first conductor unit. This means that the first conductor unit is curved, rather than connected to the measuring device in a straight line.
[0059] As an example, the length of the first wire unit may be at least twice the straight-line distance.
[0060] In order to reduce the space occupied by the first wire unit and to avoid the lines being too messy, the length of the first wire unit can be at most ten times the straight-line distance.
[0061] In another embodiment, the above two embodiments can be used in combination, that is, on the basis of the multiple wire branches in the first wire unit being dispersed, the length of the first wire unit is lengthened, please refer to Figure 3 .
[0062] Through the combination of the above two implementations, the stiffness of the first wire unit is reduced to a greater extent and can be close to zero.
[0063] In another embodiment, the vibration reduction device further includes: a sound insulation module 4, please refer to Figure 4 The sound insulation module 4 is wrapped around the outside of the measuring device 1 and the vibration isolation module 2 to isolate the influence of external noise on the measuring equipment. In this embodiment, in addition to considering the noise introduced by ground vibration and the mechanical noise introduced by the wires, the noise introduced by external sounds is also considered, resulting in a better vibration reduction effect and further improving the measurement accuracy.
[0064] As an embodiment, the wire module passes through the sound insulation module 4, and the first wire unit 321 is located in the sound insulation module 4. Please refer to Figure 4 .
[0065] In one embodiment, a vibration reduction system is also provided, please refer to Figure 2 , which includes:
[0066] Measuring device 1;
[0067] The vibration reduction device is the vibration reduction device described in any of the above embodiments, which is used to reduce vibration for the measuring device, and not only takes into account the noise impact caused by ground vibration, but also takes into account the noise impact caused by wire coupling.
[0068] Throughout this specification, references to terms such as "one embodiment," "an example," "a specific implementation," or "an example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A vibration damping device, characterized in that: include: A vibration isolation module, which is used to isolate the vibration transmission between the ground and the measuring device; A conductor module, comprising: at least one conductor; one end of the conductor being connected to the measuring device; The conductor includes: a first conductor unit and a second conductor unit sequentially distributed from one end to the other end; the stiffness of the first conductor unit is smaller than the stiffness of the second conductor unit.
2. The vibration damping device according to claim 1, characterized in that: The conductor includes a plurality of conductor branches. The plurality of conductor branches in the first conductor unit are dispersed; and the plurality of conductor branches in the second conductor unit are packaged together.
3. The vibration damping device according to claim 1, characterized in that: The length of the first wire unit is greater than the straight-line distance; Among them, the straight-line distance refers to the straight-line distance between one end of the first wire unit and the connection point of the measuring device; one end of the first wire unit refers to the end of the first wire unit away from the measuring device; the connection point of the measuring device refers to the connection point between the measuring device and the first wire unit.
4. The vibration damping device according to claim 3, characterized in that: The length of the first wire unit is at least twice the straight-line distance.
5. The vibration damping device according to claim 1, characterized in that: The stiffness of the first wire unit is much smaller than the stiffness of the second wire unit.
6. The vibration damping device according to claim 5, characterized in that: The stiffness of the first wire unit is close to zero.
7. The vibration damping device according to any one of claims 1 to 6, characterized in that: Also includes: The sound insulation module is wrapped around the outside of the measuring device and is used to isolate external noise.
8. The vibration damping device according to claim 7, characterized in that: The wire module passes through the sound insulation module, and the first wire unit is located in the sound insulation module.
9. The vibration damping device according to any one of claims 1 to 6, characterized in that: The vibration isolation module is a passive vibration isolation module or an active vibration isolation module.
10. A vibration reduction system, characterized in that: include: Measuring devices; A vibration reduction device, which is the vibration reduction device according to any one of claims 1 to 9, used to reduce vibration for the measuring device.