Damping unit, damping module, structural vibration control device and equipment

Abstract

The invention provides a damping unit, a damping module, a structural vibration control device and equipment, relates to the technical field of structural vibration suppression, and is used for improving the vibration suppression effect of the damping unit. The damping unit comprises a first mass block, a second mass block, a first damping piece and a second damping piece. The first damping piece is arranged between the first mass block and the second mass block, the first damping piece is connected with the first mass block and the second mass block, one end of the second damping piece is connected with the second mass block, and the length direction of the first damping piece and the length direction of the second damping piece are parallel to the first direction. According to the damping unit, when vibration occurs, due to the fact that the distances between the first mass block and the second mass block and the vibration occurrence position are different, displacement difference exists between vibration between the first mass block and the second mass block, the first damping piece and the second damping piece both generate damping force, and then the vibration suppression effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structure vibration suppression, and particularly relates to a damping unit, a damping module, a structure vibration control device and equipment. BACKGROUND

[0002] In the field of precision detection, slight vibration may affect the detection accuracy, so the precision detection equipment has high requirements on vibration. How to effectively reduce the influence of slight vibration on the precision of the precision detection equipment has become an important problem in the field of precision detection.

[0003] A tuned mass damper (TMD) is a control device for suppressing structure vibration. The TMD can include a mass block, a connecting rod and a damping block. The connecting rod is used to connect the mass block and the damping block. The mass block is installed on the main body of the equipment, and the connecting rod keeps the damping block in a suspended state. When the main body of the equipment vibrates, the connecting rod transmits the vibration to the damping block, and the damping block resonates to absorb energy to reduce the vibration of the main body of the equipment. Although this kind of vibration control device can suppress vibration, the energy consumption capacity is weak. SUMMARY

[0004] The present application discloses a damping unit, a damping module, a structure vibration control device and equipment, which are used to increase the energy consumption capacity of the damping unit.

[0005] In a first aspect, the present application provides a damping unit, which comprises:

[0006] a first mass block;

[0007] a second mass block, the first mass block and the second mass block are arranged at intervals along a first direction respectively;

[0008] a first damping member and a second damping member, the first damping member is arranged between the first mass block and the second mass block, the first damping member is connected with the first mass block and the second mass block respectively, one end of the second damping member is connected with the second mass block, and the length direction of the first damping member and the second damping member is parallel to the first direction.

[0009] According to the above technical means, the damping unit provided by the present application comprises a first mass block and a second mass block, and the first mass block and the second mass block are connected by a first damping member. When vibration occurs, because the distance between the first mass block and the second mass block from the vibration position is different, the vibration between the first mass block and the second mass block has a displacement difference, so that the first damping member and the second damping member both generate damping force, the energy consumption capacity of the first damping member and the second damping member is enhanced, thereby improving the energy consumption capacity of the damping unit and improving the suppression effect on vibration.

[0010] In a possible implementation, the first mass block has a first mass, the second mass block has a second mass, the first mass is not equal to the second mass, and a difference between the first mass and the second mass is greater than a first preset threshold.

[0011] According to the technical means, the damping unit includes the first mass block and the second mass block with different masses. When vibration occurs, the displacement of the large mass block lags behind the small mass block, the displacement difference between the first mass block and the second mass block is increased, the damping force generated by the first damping member and the second damping member is increased, the energy dissipation capacity of the first damping member and the second damping member is further enhanced, and the energy dissipation capacity of the damping unit can be further improved.

[0012] In a possible implementation, the damping unit further includes a third mass block, a third damping member, and a fourth damping member, the third mass block is arranged to be spaced apart from the first mass block along a second direction, and the second direction is not parallel to the first direction.

[0013] The third damping member is arranged between the first mass block and the third mass block, the third damping member is connected to the first mass block and the third mass block respectively, one end of the fourth damping member is connected to the third mass block, and the length directions of the third damping member and the fourth damping member are parallel to the second direction.

[0014] According to the technical means, the third mass block, the third damping member, and the fourth damping member can dissipate the vibration in the second direction, so as to dissipate the vibration in the plane by cooperation with the first mass block, the second mass block, the first damping member, and the second damping member, and effectively control the vibration of the support frame on the plane.

[0015] In a possible implementation, the first mass block has a first mass, the third mass block has a third mass, the first mass is not equal to the third mass, and a difference between the first mass and the third mass is greater than a second preset threshold.

[0016] According to the technical means, the damping unit includes the first mass block and the third mass block with different masses. When vibration occurs, the displacement of the large mass block lags behind the small mass block, the displacement difference between the first mass block and the third mass block is increased, the damping force generated by the third damping member and the fourth damping member is increased, the energy dissipation capacity of the third damping member and the fourth damping member is further enhanced, and the energy dissipation capacity of the damping unit can be further improved.

[0017] In a possible implementation, the damping unit further comprises a fifth damping member, one end of the fifth damping member is connected with the first mass block, the length direction of the fifth damping member is parallel to the third direction, and the third direction is perpendicular to the plane in which the first direction and the second direction are located.

[0018] According to the technical means, the fifth damping member can consume the vibration in the third direction, and through cooperation with the first mass block, the second mass block, the first damping member, the second damping member, the third mass block, the third damping member, and the fourth damping member, the vibration in three-dimensional directions can be consumed, and the vibration of the support frame in three-dimensional directions can be effectively controlled.

[0019] In a possible implementation, the second mass block is a plurality of second mass blocks, and the plurality of second mass blocks are located on one side of the first mass block and are arranged at intervals along the first direction.

[0020] The damping unit further comprises an intermediate damping member, and two adjacent second mass blocks are connected through one intermediate damping member.

[0021] According to the technical means, the number of second mass blocks can be designed according to actual vibration consumption requirements, so as to meet the damping energy consumption requirements and increase the energy consumption effect of the damping unit.

[0022] In a possible implementation, the first damping member comprises a first fixed part, a second fixed part, and a plurality of flexible load-bearing members, the first fixed part is connected with the first mass block, the second fixed part is connected with the second mass block, one end of each flexible load-bearing member is connected with the first fixed part, the other end of each flexible load-bearing member is connected with the second fixed part, and the plurality of flexible load-bearing members are arranged at intervals around a straight line parallel to the first direction.

[0023] According to the technical means, because the weights of the first mass block and the second mass block are different, the displacement of the large mass block will be later than that of the small mass block, and the displacement difference between the vibrations of different mass blocks is enhanced, the pulling of the flexible load-bearing member is enhanced, the deformation ability of the flexible load-bearing member structure is enhanced, and the damping energy consumption capacity is further increased.

[0024] In a possible implementation, the plurality of flexible load-bearing members are arranged in a bent manner between the first fixed part and the second fixed part.

[0025] According to the technical means, the flexible load-bearing member is arranged in a bent manner, and the steel wires in different strands and different layers of the flexible load-bearing member slide relative to each other due to the difference in bending radii, and the sliding friction will increase the damping energy consumption effect.

[0026] In a second aspect, the present application provides a damping module, which comprises a housing and the damping unit described above; the housing encloses a receiving cavity, and the damping unit is arranged in the receiving cavity, and the other end of the second damping member is connected with the cavity wall of the receiving cavity. For the specific content of the damping unit, please refer to the description of the first aspect, which will not be repeated here.

[0027] According to the above technical means, the damping unit is connected with the housing through the second damping member to form a damping module, which can be installed on the support frame alone to play a damping energy dissipation effect, or cooperate with the connecting rod and the fixed module to play a damping energy dissipation effect, which meets the damping energy dissipation demand of the main equipment.

[0028] In a third aspect, the present application provides a structural vibration control device, which comprises a fixed module, a connecting rod and the damping module described above, the connecting rod is connected with the fixed module and the damping module, and the fixed module and the damping module are arranged at intervals along the length direction of the connecting rod. For the specific content of the damping module, please refer to the description of the second aspect, which will not be repeated here.

[0029] According to the above technical means, the fixed module is installed on the support frame, and the connecting rod supports the damping module, so that the damping module is suspended, when the support frame vibrates, the connecting rod transmits the vibration to the damping module, and the vibration is consumed by the damping module to play a vibration reduction effect on the support frame.

[0030] In a possible implementation, the damping module and the connecting rod are connected through an adjusting structure, and the adjusting structure is used to adjust the distance between the damping module and the fixed module.

[0031] According to the above technical means, the position of the damping module connected to the connecting rod can be adjusted through the adjusting structure, so as to change the distance between the damping module and the fixed module, and further adjust the frequency of the structural vibration control device. The frequency of the structural vibration control device can be adjusted to the vicinity of the resonance frequency of the support frame, so as to increase the vibration control effect.

[0032] In a possible implementation, the adjusting structure comprises a bolt, a first connecting hole and a plurality of second connecting holes, the first connecting hole is arranged on the housing, and the plurality of second connecting holes are arranged at intervals along the length direction of the connecting rod. The bolt is used to connect the first connecting hole and the second connecting hole corresponding to the first connecting hole.

[0033] According to the technical means, the position of the shell on the connecting rod is adjusted so that the first connecting hole on the shell is opposite to one of the second connecting holes on the connecting rod, and after the first connecting hole and the second connecting hole are connected by the screw rod, the position of the shell on the connecting rod is fixed; during adjustment, the screw rod is removed so that the shell can move on the connecting rod, and after the position of the shell is adjusted, the first connecting hole is opposite to the other second connecting hole, and then the first connecting hole and the second connecting hole are connected by the screw rod, which is simple in structure, convenient to adjust, and can ensure sufficient connection strength.

[0034] In a possible implementation, the connecting rod is provided with a frequency scale mark, and the length direction of the frequency scale mark is parallel to the length direction of the connecting rod.

[0035] According to the technical means, the frequency sensitive range of the support frame is known, the damping module is adjusted to the corresponding position according to the frequency scale mark, so that the structure vibration control device has a frequency adapted thereto, the damping energy consumption capability is increased, the vibration suppression requirement of the support frame is met, and the adjustment process does not need to be repeatedly debugged, and the adjustment efficiency is increased.

[0036] In a possible implementation, the fixing module is provided with a connecting surface for connecting with the support frame, and the damping module has a preset surface facing the support frame, and the preset surface is parallel to and spaced apart from the connecting surface.

[0037] According to the technical means, when the fixing module is connected with the support frame, the damping module has a certain distance from the support frame, so that interference and collision between the damping module and the support frame during vibration of the structure vibration control device are prevented, use of the support frame is avoided, and damping effect of the structure vibration control device is ensured.

[0038] In a fourth aspect, the application provides a device including a support frame, a device body, and the structure vibration control device described above, the device body is connected with the support frame, and the structure vibration control device is arranged on the support frame. For specific content of the structure vibration control device, refer to the description of the third aspect, which will not be repeated here.

[0039] According to the technical means, the device is provided with the structure vibration control device on the support frame, so that the vibration of the device is consumed by the structure vibration control device, and the performance of the device is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of one form of a structural vibration control device installed on the support frame described in the embodiments of this application;

[0042] Figure 2 This is a schematic diagram of another form of the support frame on which a structural vibration control device is installed, as described in the embodiments of this application;

[0043] Figure 3 This is a schematic diagram of the structure vibration control device described in the embodiments of this application;

[0044] Figure 4 This is a plan view of the structural vibration control device described in the embodiments of this application;

[0045] Figure 5 This is an exploded view of the fixing module described in the embodiments of this application;

[0046] Figure 6 This is a schematic diagram of the connecting rod described in an embodiment of this application;

[0047] Figure 7 This is an exploded view of the damping module described in the embodiments of this application;

[0048] Figure 8 This is a schematic diagram of the housing of the damping module described in the embodiments of this application;

[0049] Figure 9 This is a schematic diagram of the structure of the damping unit installed inside the housing according to an embodiment of this application.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1-Supporting framework;

[0052] 2-Structural vibration control device;

[0053] 21-Fixed module; 22-Linkage rod; 23-Damping module;

[0054] 211-Counterweight block; 212-Counterweight base plate; 213-Main body connecting plate;

[0055] 2111-Counterweight slot; 2112-Threaded hole; 2121-Fourth connecting hole; 2122-Counterweight limiting groove; 2123-Connecting surface;

[0056] 221 - Second connecting hole; 222 - Third connecting hole; 223 - Frequency scale marking;

[0057] 231-Damping unit; 232-Housing shell;

[0058] 2311 - First mass block; 2312 - Second mass block; 2313 - First damping element; 2314 - Second damping element; 2315 - Third mass block; 2316 - Third damping element; 2317 - Fourth damping element; 2318 - Fifth damping element;

[0059] 2321 - Receiving cavity; 2322 - First connecting hole; 2323 - Cover plate; 2324 - First insertion hole; 2325 - Preset surface;

[0060] 23131 - First fixing part; 23132 - Second fixing part; 23133 - Flexible load-bearing component. Detailed Implementation

[0061] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0062] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0063] In the embodiments of this application, "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, said acceptable deviation range being determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range for approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range for approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0064] The structural vibration control device provided in this application can be used for various equipment that suffers from performance degradation or structural damage due to vibration, and can also be referred to as vibration-controlled equipment. The equipment provided in this application includes machine tools, vehicle engines, vibration test benches, precision instruments, etc., without limitation. Precision instruments include measurement devices used to detect parameters such as the size, shape, and position of objects. The measurement devices provided in this application include coordinate measuring machines, metallographic microscopes, laser interferometers, optical rangefinders, spectrometers, etc., without limitation. The structural vibration control device 2, as a damping device, is applied to this type of equipment. The structural vibration control device 2 includes a fixed module, a connecting rod, and a damping module. The connecting rod connects the fixed module and the damping module. The fixed module is connected to the support frame of the equipment, and the connecting rod holds the damping module in a suspended position. When the equipment vibrates, the connecting rod transmits the vibration to the damping module, which then absorbs the vibration. Therefore, the structural vibration control device 2, as one of the main components of the equipment, primarily plays a role in vibration control, increasing the stability of the equipment and the accuracy of measurements.

[0065] The embodiments of this application are described below with reference to the accompanying drawings.

[0066] Combination Figure 1 and Figure 2 As shown, this application provides a device including a support frame 1, a device body (not shown in the figure), and a structural vibration control device 2. The device body is connected to the support frame 1. Specifically, the device body is connected inside the support frame 1. The device body is the main component for realizing the function of the device. The structural vibration control device 2 is installed on the support frame 1 of the device.

[0067] The support frame 1 of this equipment is the supporting structure for the main body of the equipment, providing support and load-bearing function. A cover plate can be installed on the outer side of the support frame 1. The cover plate and the support frame 1 together form the outer shell structure of the equipment, protecting the main body of the equipment inside the support frame 1. Figure 1 and Figure 2 The supporting frame 1 in the diagram is a schematic structure. The specific shape and composition of the supporting frame 1 can be designed according to actual needs, and this application does not limit it. The structural vibration control device 2 is installed on the supporting frame 1. During the operation of the equipment, the vibration generated by the main body of the equipment is transmitted to the structural vibration control device 2 through the supporting frame 1, so as to suppress the vibration of the equipment through the structural vibration control device 2. The installation position, installation direction, and number of the structural vibration control device 2 are not limited.

[0068] For example, the support frame 1 includes a bottom support and side supports, with the bottom support connected to the side supports. There is one structural vibration control device 2, which is horizontally mounted on the bottom support of the support frame 1; or, the structural vibration control device 2 is vertically mounted on the side supports of the support frame 1; or, there are two structural vibration control devices 2, both horizontally mounted on the bottom support of the support frame 1; or, as... Figure 1 As shown, both structural vibration control devices 2 are vertically mounted on the side supports of the support frame 1; or, as... Figure 2 As shown, there are two structural vibration control devices 2. One structural vibration control device 2 is set horizontally on the bottom support of the support frame 1, and the other structural vibration control device 2 is set vertically on the side support of the support frame 1. It can be seen that multiple structural vibration control devices 2 can be used individually or in combination to meet the vibration suppression requirements of different equipment. These are not limiting and can be designed according to actual needs.

[0069] The device provided in this application has a structural vibration control device 2 installed on the support frame 1 to dissipate the vibration of the device and avoid affecting the performance of the device.

[0070] Combination Figure 3 and Figure 4As shown, the structural vibration control device 2 includes a fixed module 21, a connecting rod 22, and a damping module 23. The connecting rod 22 is connected to both the fixed module 21 and the damping module 23. Specifically, the connecting rod 22 is located between the fixed module 21 and the damping module 23. One end of the connecting rod 22 is connected to the fixed module 21, and the other end is connected to the damping module 23. The fixed module 21 and the damping module 23 are spaced apart along the length of the connecting rod 22. The statement that the structural vibration control device 2 is horizontally mounted on the support frame 1 means that after installation, the length of the connecting rod 22 is parallel to the horizontal direction. The statement that the structural vibration control device 2 is vertically mounted on the support frame 1 means that after installation, the length of the connecting rod 22 is perpendicular to the horizontal plane.

[0071] In this design, the fixed module 21 is installed on the support frame 1, and the connecting rod 22 supports the damping module 23, so that the damping module 23 is suspended. When the support frame 1 vibrates, the connecting rod 22 transmits the vibration to the damping module 23, and the damping module 23 consumes the vibration, so as to achieve the vibration reduction effect of the support frame 1.

[0072] In one possible implementation, the connecting rod 22 can adopt a long strip or cylindrical structure, which can be designed according to actual needs. Among them, the cylindrical connecting rod 22 has a better vibration suppression effect for vibrations that exist in the same magnitude range in multiple directions. The long strip connecting rod 22 is more suitable for suppressing vibrations in the direction perpendicular to the long strip surface of the connecting rod 22.

[0073] In one possible implementation, the damping module 23 and the connecting rod 22 are connected by an adjustment structure, which is used to adjust the distance between the damping module 23 and the fixed module 21. The adjustment structure is a structure for connecting the damping module 23 and the connecting rod 22. The adjustment structure can be an external structure independent of the damping module 23 and the connecting rod 22, or a portion of the adjustment structure can be formed on the connecting rod 22 or the damping module 23; these arrangements are all restrictive.

[0074] In this design, the distance between the damping module 23 and the fixed module 21 can be changed by adjusting the position of the structural damping module 23 connected to the connecting rod 22, thereby adjusting the frequency of the structural vibration control device 2 to be close to the resonance frequency of the support frame 1, and increasing the vibration control effect.

[0075] In one possible implementation, the adjusting structure includes a bolt, a first connecting hole 2322, and a plurality of second connecting holes 221, such as Figure 9As shown, the first connection hole 2322 is disposed on the housing 232 of the damping module 23, specifically on one side wall of the housing 232. The preset surface 2325 of the damping module 23 is the outer surface of the side wall of the housing 232 with the first connection hole 2322. Figure 6 As shown, multiple second connecting holes 221 are spaced apart on the connecting rod 22 along the length direction of the connecting rod 22. Bolts are used to connect the first connecting hole 2322 and the second connecting hole 221 corresponding to the first connecting hole 2322, thereby connecting the housing 232 and the connecting rod 22 and maintaining the position of the housing 232 on the connecting rod 22.

[0076] In this design, during use, the position of the housing 232 on the connecting rod 22 is adjusted so that the first connecting hole 2322 on the housing 232 is aligned with one of the second connecting holes 221 on the connecting rod 22. After connecting the first connecting hole 2322 and the second connecting hole 221 with a screw, the position of the housing 232 on the connecting rod 22 can be fixed. During adjustment, the screw is removed so that the housing 232 can move on the connecting rod 22. After the position of the housing 232 is adjusted, the first connecting hole 2322 is aligned with the other second connecting hole 221. Then, the first connecting hole 2322 and the second connecting hole 221 are connected with a screw. The structure is simple, the adjustment is convenient, and sufficient connection strength can be guaranteed.

[0077] In one possible implementation, the first connecting hole 2322 is a stepped hole, specifically including a first hole and a second hole that are connected. The second hole is located near the connecting rod 22 and can be used for bolts to pass through. The first hole is located on the side of the second hole away from the connecting rod 22, and the diameter of the first hole is larger than the diameter of the second hole. The nut of the screw can abut against the stepped surface of the first hole and the second hole. The first hole is used to accommodate the nut and prevent the nut from protruding from the housing 232.

[0078] In one possible implementation, such as Figure 9 As shown, a first insertion hole 2324 is provided on one side of the housing 232. The connecting rod 22 passes through the first insertion hole 2324 to extend into the interior of the housing 232. At this time, the screw passes through the first connecting hole 2322 and the second connecting hole 221 in sequence, and connects the first connecting hole 2322 and the second connecting hole 221. The specific structure is as follows:

[0079] For example, the second connecting hole 221 is a threaded hole. After the bolt passes through the first connecting hole 2322, it is threaded into the threaded hole. As the bolt is screwed in, the nut presses against the outer wall of the housing 232, thus connecting the first connecting hole 2322 and the second connecting hole 221, thereby connecting the housing 232 and the connecting rod 22. Alternatively, a nut can be placed on the side of the connecting rod 22 away from the first connecting hole 2322. After the bolt passes through the first connecting hole 2322 and the second connecting hole 221 in sequence, it is screwed onto the nut. The nut presses against the outer wall of the housing 232, thus connecting the first connecting hole 2322 and the second connecting hole 221, thereby connecting the housing 232 and the connecting rod 22.

[0080] In another possible implementation, the outer wall of the housing 232 is provided with a slot, which is arranged along the extension direction of the connecting rod 22. The connecting rod 22 is inserted into the slot, so that the connecting rod 22 is located on one side of the housing 232. In this case, the first connecting hole 2322 is a screw hole. After the bolt passes through the second connecting hole 221, it is screwed into the screw hole. The nut abuts against the side of the connecting rod 22, realizing the connection between the second connecting hole 221 and the first connecting hole 2322, thereby realizing the connection between the connecting rod 22 and the housing 232.

[0081] As can be seen, the bolt connection between the first connecting hole 2322 and the second connecting hole 221 is not restricted and can be designed according to actual needs.

[0082] In another possible implementation, the adjusting structure includes a bolt, a first connecting hole 2322, a second connecting hole 221, and a nut. The second connecting hole 221 is located on the connecting rod 22, and the first connecting hole 2322 is located on the housing 232, specifically on one side wall of the housing 232. The first connecting hole 2322 is a slotted hole, and its extension direction is consistent with the extension direction of the connecting rod 22. The nut of the bolt is fixed to the side of the second connecting hole 221 opposite to the first connecting hole 2322. The bolt shank passes through the second connecting hole 221 and the slotted hole, and the nut is screwed onto the end of the bolt to clamp the connecting rod 22 and the side wall of the housing 232 between the nut and the bolt, thereby connecting the connecting rod 22 and the housing 232.

[0083] In another possible implementation, a first insertion hole 2324 is provided on one side of the housing 232. The connecting rod 22 passes through the first insertion hole 2324 to extend into the interior of the housing 232. The adjustment structure includes a bolt and a screw hole. The screw hole is provided on the housing 232, specifically on one of the side walls of the housing 232. The bolt is screwed into the screw hole, and the connecting rod 22 is positioned opposite the bolt along the axial direction of the bolt. In use, by screwing the screw, the end of the screw can be pressed against the side of the connecting rod 22 to restrict the position of the connecting rod 22, thereby connecting the connecting rod 22 to the housing 232. During adjustment, by screwing the screw in the opposite direction, the connecting rod 22 is no longer restricted and can adjust its position along its own length.

[0084] It is evident that the design of the adjustment structure is unrestricted and can be tailored to specific needs.

[0085] In one possible implementation, the housing 232 includes a first wall facing the fixed module 21, and a first insertion hole 2324 is provided on the first wall. The housing 232 also includes a second wall, which is disposed opposite to the first wall along the length direction of the connecting rod 22. The second wall is provided with a second insertion hole, which is positioned opposite to the first insertion hole 2324 along the length direction of the connecting rod 22. The connecting rod 22 can extend into the interior of the housing 232 through the first insertion hole 2324 and pass through the second insertion hole, thereby increasing the connection range between the connecting rod 22 and the housing 232 and increasing the adjustment range of the housing 232.

[0086] In another possible implementation, the distance between the damping module 23 and the fixing module 21 can be changed by replacing the connection between different connecting rods 22 and the damping module 23. The lengths of the different connecting rods 22 are different to meet the usage requirements of different support frames 1.

[0087] In one possible implementation, such as Figure 6 As shown, a frequency scale mark 223 is provided on the connecting rod 22, and the length direction of the frequency scale mark 223 is parallel to the length direction of the connecting rod 22. Specifically, the frequency scale mark 223 is used to mark multiple frequency information scales. The multiple frequency scale marks are arranged at intervals along the length direction of the connecting rod 22, and each frequency scale mark corresponds to a frequency value. When the damping module 23 corresponds to one of the frequency scale marks, the structural vibration control device 2 has a frequency corresponding to that frequency scale mark.

[0088] In this design, the frequency sensitivity range of the support frame 1 is known (the frequency sensitivity point of the support frame 1 can be obtained through testing, and the frequency sensitivity range of the support frame 1 can be obtained). The damping module 23 is adjusted to the corresponding position according to the frequency scale marking, so that the structural vibration control device 2 has a frequency that matches it, increases the damping energy dissipation capacity, meets the vibration suppression requirements of the support frame 1, and the adjustment process does not require repeated debugging, thus increasing the adjustment efficiency.

[0089] In one possible implementation, a first insertion hole 2324 is provided on one side of the housing 232, and the connecting rod 22 passes through the first insertion hole 2324 to extend into the interior of the housing 232. A frequency scale mark is provided on one side of each second connection hole 221. The diameter of the first connection hole 2322 is larger than the diameter of the second connection hole 221, so that the frequency scale mark corresponding to each second connection hole 221 can be seen directly through the first connection hole 2322. When the observed frequency scale mark is the target frequency scale mark, the first connection hole 2322 and the second connection hole 221 can be connected by bolts. The operation is convenient and the positioning is accurate.

[0090] In another possible implementation, a first insertion hole 2324 is provided on one side of the housing 232, and the connecting rod 22 passes through the first insertion hole 2324 to extend into the interior of the housing 232. Multiple frequency scale marks are located on one side of the second connection hole 221 and exposed on the damping module 23. At this time, when the edge of the damping module 23 is flush with the frequency scale mark, it indicates that the structural vibration control device 2 has a frequency corresponding to the frequency scale mark. The first connection hole 2322 and the second connection hole 221 can be connected by bolts, which makes it easy to observe the frequency scale mark intuitively and increases the convenience of operation.

[0091] In another possible implementation, the outer wall of the housing 232 is provided with a slot, which is arranged along the extension direction of the connecting rod 22. The connecting rod 22 is inserted into the slot, so that the connecting rod 22 is located on one side of the housing 232. Each second connecting hole 221 has a frequency scale mark on one side. In this case, since the frequency scale mark and the second connecting hole 221 are exposed, the frequency scale mark corresponding to each second connecting hole 221 can be observed intuitively. When the corresponding second connecting hole 221 is aligned with the first connecting hole 2322, the bolt passes through the second connecting hole 221 and the first connecting hole 2322 to connect the second connecting hole 221 and the first connecting hole 2322.

[0092] As can be seen, the design of the frequency scale mark 223 and the connection method between the connecting rod 22 and the housing 232 are not limited and can be designed according to actual needs.

[0093] In one possible implementation, such as Figure 5 As shown, the fixing module 21 is provided with a connecting surface 2123 for connecting with the support frame 1. The connecting surface 2123 is used for connecting with the support frame 1. Figure 9 As shown, the damping module 23 has a preset surface 2325 facing the support frame 1, such as Figure 4 As shown, the preset surface 2325 and the connecting surface 2123 are set to be parallel and spaced apart. The distance between the preset surface 2325 and the connecting surface 2123 is L. The value of L is not limited and can be designed according to actual needs.

[0094] In this design, after the fixed module 21 is connected to the support frame 1, there is a certain distance between the damping module 23 and the support frame 1. This prevents interference and collision between the damping module 23 and the support frame 1 when the structural vibration control device 2 is vibrating, thus avoiding affecting the use of the support frame 1. At the same time, it ensures the damping effect of the structural vibration control device 2.

[0095] In one possible implementation, such as Figure 5 As shown, the fixing module 21 includes a counterweight block 211 and a counterweight base plate 212. A counterweight slot 2111 is provided on one side of the counterweight block 2111, extending along the length of the connecting rod 22, allowing the connecting rod 22 to be inserted into the counterweight slot 2111. Figure 6 As shown, the connecting rod 22 has a third connecting hole 222, and the counterweight block 211 has a threaded hole 2112 at the corresponding position of the counterweight slot 2111. The counterweight base plate 212 is used to connect to the side of the counterweight block 211 with the counterweight slot 2111, and the counterweight base plate 212 has a fourth connecting hole 2121. The third connecting hole 222 and the fourth connecting hole 2121 are through holes. When the connecting rod 22 is inserted into the counterweight slot 2111, the counterweight base plate 212 covers the side of the counterweight block 211 with the counterweight slot 2111. At this time, the fourth connecting hole 2121, the third connecting hole 222, and the threaded hole 2112 are positioned opposite each other. The bolt passes through the fourth connecting hole 2121 and the third connecting hole 222 and connects to the threaded hole 2112 to connect the counterweight base plate 212, the connecting rod 22, and the counterweight block 211, increasing the strength of the connection.

[0096] In one possible implementation, the counterweight slot 2111 gradually decreases in size along the direction away from the counterweight block 211 to form a slot structure, thereby increasing the cooperation effect between the counterweight slot 2111 and the connecting rod 22 and preventing the connecting rod 22 from disengaging from the counterweight slot 2111.

[0097] In one possible implementation, such as Figure 5 As shown, the fixing module 21 also includes a main connecting plate 213, which is disposed on the counterweight base plate 212. The fixing structure is connected to the support frame 1 through the main connecting plate 213. At this time, the connecting surface 2123 of the fixing module 21 is located on the side of the counterweight base plate 212 facing the support frame 1. The counterweight base plate 212 is provided with a counterweight limiting groove 2122. A part of the main connecting plate 213 is located in the counterweight limiting groove 2122 and is bolted to the counterweight base plate 212. The other part of the main connecting plate 213 extends out of the counterweight limiting groove 2122 for bolting to the support frame 1.

[0098] In one possible implementation, there are two counterweight limiting grooves 2122 and two main body connecting plates 213. The two counterweight limiting grooves 2122 are arranged on corresponding sides of the counterweight base plate 212, and each counterweight limiting groove 2122 is connected to one main body connecting plate 213 to increase the connection strength.

[0099] Combination Figure 7 and Figure 8 As shown, this application provides a damping module 23, which includes a housing 232 and a damping unit 231. The housing 232 forms a receiving cavity 2321, and the damping unit 231 is disposed within the receiving cavity 2321. The other end of the second damping element 2314 of the damping unit 231 is connected to the cavity wall of the receiving cavity 2321. In addition, one side of the housing 232 is open, and the open end of the housing 232 is sealed by a cover plate 2323. The cover plate 2323 is bolted to the housing 232, which increases the convenience of disassembly and assembly.

[0100] In this design, the damping unit 231 is connected to the housing 232 through the second damping element 2314 to form the damping module 23. It can be installed on the support frame 1 alone to achieve the damping energy dissipation effect, or it can be used in conjunction with the connecting rod 22 and the fixing module 21 to achieve the damping energy dissipation effect, which meets the damping energy dissipation requirements of the main equipment.

[0101] Combination Figure 7 and Figure 8 As shown, the damping unit 231 in this application includes a first mass block 2311, a second mass block 2312, a first damping element 2313, and a second damping element 2314. The damping unit 231 is disposed inside the housing 232 of the damping module 23, and is connected to the inner wall of the housing 232 via the second damping element 2314. The damping module 23, on which the damping unit 231 is installed, is connected to the fixing module 21 via a connecting rod 22, such that the damping module 23 and the fixing module 21 are spaced apart. The damping module 23, on which the damping unit 231 is installed, the connecting rod 22, and the fixing module 21 constitute the structural vibration control device 2. The structural vibration control device 2 is connected to the support frame 1 via the fixing module 21, and the connecting rod 22 supports the damping module 23 at a position spaced apart from the support frame 1.

[0102] The first mass block 2311 and the second mass block 2312 are respectively arranged at intervals along a first direction, which is the direction in which the equipment needs to suppress vibration. The first direction can be any direction. For example, when the direction in which the equipment needs to suppress vibration is... Figure 7 When the X-axis direction is in the middle, the first direction is... Figure 7The first damping element 2313 is disposed between the first mass block 2311 and the second mass block 2312. The first damping element 2313 is connected to the first mass block 2311 and the second mass block 2312 respectively, that is, one end of the first damping element 2313 is connected to the first mass block 2311 and the other end of the first damping element 2313 is connected to the second mass block 2312. One end of the second damping element 2314 is connected to the second mass block 2312 and the other end of the second damping element 2314 is connected to the housing 232. The length directions of the first damping element 2313 and the second damping element 2314 are parallel to the first direction.

[0103] The damping unit 231 provided in this application includes a first mass block 2311 and a second mass block 2312, and the first mass block 2311 and the second mass block 2312 are connected by a first damping element 2313. When vibration occurs, due to the different distances between the first mass block 2311 and the second mass block 2312 and the vibration location, there is a displacement difference between the vibration of the first mass block 2311 and the second mass block 2312, which causes the first damping element 2313 and the second damping element 2314 to generate damping force. The energy dissipation capacity of the first damping element 2313 and the second damping element 2314 is enhanced, thereby improving the energy dissipation capacity of the damping unit 231 and increasing the vibration suppression effect.

[0104] In one possible implementation, the first mass block 2311 has a first mass, and the second mass block 2312 has a second mass. The first mass and the second mass may be equal or unequal.

[0105] In one example, the first mass and the second mass are not equal; the first mass may be greater than the second mass, or the first mass may be less than the second mass. It is understood that this application does not impose restrictions on the mass difference between the first mass block 2311 and the second mass block 2312. For example, the difference between the first mass and the second mass may be as small as approximately equal to each other, or the difference may be relatively large. These are not restrictive and can be designed according to actual needs.

[0106] In this design, the damping unit 231 includes a first mass block 2311 and a second mass block 2312 with different masses. Due to the difference in inertia, when vibration occurs, the displacement of the larger mass block will lag behind that of the smaller mass block, increasing the displacement difference between the first mass block 2311 and the second mass block 2312, and increasing the damping force generated by the first damping element 2313 and the second damping element 2314. The energy dissipation capacity of the first damping element 2313 and the second damping element 2314 is further enhanced, thereby further improving the energy dissipation capacity of the damping unit 231.

[0107] In one example, the difference between the first mass and the second mass is greater than a first preset threshold. Specifically, the first mass block is heavier than the second mass block by the first preset threshold, or the second mass block is heavier than the first mass block by the first preset threshold. The first preset threshold can be determined based on parameters such as interference frequency and equipment stiffness. By appropriately designing the mass difference between the first mass block 2311 and the second mass block 2312 for different devices, the energy dissipation capacity of the damping unit 231 can be better improved.

[0108] In one possible implementation, combined with Figure 7 and Figure 8 As shown, the damping unit 231 also includes a third mass block 2315, a third damping element 2316, and a fourth damping element 2317. The third mass block 2315 is spaced apart from the first mass block 2311 along a second direction, which is the second direction at this point. Figure 7 In the Y-axis direction, the second direction is not parallel to the first direction. For example, the first direction is perpendicular to the second direction, or the first direction forms other angles with the second direction, such as 30° or 45°, which can be designed according to actual needs. A third damping element 2316 is disposed between the first mass block 2311 and the third mass block 2315. The third damping element 2316 is connected to both the first mass block 2311 and the third mass block 2315, with one end connected to the first mass block 2311 and the other end connected to the third mass block 2315. A fourth damping element 2317 is connected to the third mass block 2315 at one end and to the housing 232 at the other end. The length directions of the third damping element 2316 and the fourth damping element 2317 are parallel to the second direction.

[0109] In this design, the vibration in the second direction can be consumed by the third mass block 2315, the third damping element 2316 and the fourth damping element 2317. In combination with the first mass block 2311, the second mass block 2312, the first damping element 2313 and the second damping element 2314, the vibration in the plane can be consumed, and the vibration of the support frame 1 in the plane can be effectively controlled.

[0110] In one possible implementation, the first mass block 2311 has a first mass, and the third mass block 2315 has a third mass. The third mass may be equal to or unequal to the first mass.

[0111] In one example, the first mass and the third mass are not equal; the first mass may be greater than the third mass, or the first mass may be less than the third mass. It is understood that this application does not impose restrictions on the mass difference between the first mass block 2311 and the third mass block 2315. For example, the difference between the first mass and the third mass may be as small as close to each other, or the difference may be relatively large. These are not restrictive and can be designed according to actual needs.

[0112] In this design, the damping unit 231 includes a first mass block 2311 and a third mass block 2315 with different masses. Due to the difference in inertia, when vibration occurs, the displacement of the larger mass block will lag behind that of the smaller mass block, increasing the displacement difference between the first mass block 2311 and the third mass block 2315. This increases the damping force generated by the third damping element 2316 and the fourth damping element 2317, further enhancing the energy dissipation capacity of the third damping element 2316 and the fourth damping element 2317, thereby further improving the energy dissipation capacity of the damping unit 231.

[0113] In one example, the difference between the first mass and the third mass is greater than a second preset threshold. This second preset threshold can be determined based on parameters such as interference frequency and device stiffness. By appropriately designing the mass difference between the first mass block 2311 and the third mass block 2315 for different devices, the energy dissipation capacity of the damping unit 231 can be better improved.

[0114] In one possible implementation, the second mass and the third mass may be equal or unequal.

[0115] In one example, the second mass is equal to the third mass. In this case, the energy dissipation capacity of the damping unit 231 in the first direction is the same as or close to the energy dissipation capacity along the second direction, thereby improving the uniformity of energy dissipation of the damping unit 231.

[0116] In one example, the second mass is not equal to the third mass, the second mass is greater than the third mass, or the third mass is greater than the second mass. The design can be based on the energy consumption requirements of the device in the first and second directions, and these are not limiting factors.

[0117] In one possible implementation, continue to refer to Figure 7 and Figure 8 The damping unit 231 also includes a fifth damping element 2318. One end of the fifth damping element 2318 is connected to the first mass block 2311, and the other end of the fifth damping element 2318 is connected to the housing 232. The length direction of the fifth damping element 2318 is parallel to the third direction, which is the third direction at this point. Figure 7 The Z-axis direction is perpendicular to the plane containing the first and second directions.

[0118] In this design, the fifth damper 2318 can absorb vibrations in the third direction, and through its cooperation with the first mass block 2311, the second mass block 2312, the first damper 2313, the second damper 2314, the third mass block 2315, the third damper 2316, and the fourth damper 2317, it can absorb vibrations in the three-dimensional direction, effectively controlling the vibration of the support frame 1 in the three-dimensional direction. When multi-directional random excitation occurs, a vibration displacement difference will be generated between the first mass block 2311, the second mass block 2312, and the third mass block 2315 in the three-dimensional direction, which plays a role in damping and energy dissipation. Therefore, this design has a good vibration suppression effect for multi-directional excitation.

[0119] In one possible implementation, there are multiple second mass blocks 2312, each located on one side of the first mass block 2311, and the multiple second mass blocks 2312 are spaced apart along a first direction. The damping unit 231 also includes an intermediate damping element, with adjacent second mass blocks 2312 connected by an intermediate damping element. The term "multiple second mass blocks 2312" here refers to two or more second mass blocks 2312, which can be designed according to actual needs. The number of second mass blocks 2312 is directly proportional to the vibration suppression requirements of the equipment; as the number of second mass blocks 2312 increases, the energy dissipation effect of the damping unit increases.

[0120] When there are two second mass blocks 2312, there is one intermediate damping element. The two second mass blocks 2312 are located on one side of the first mass block 2311 along the first direction, and are spaced apart along the first direction. The intermediate damping element is located between the two second mass blocks 2312, with one end connected to one of the second mass blocks 2312 and the other end connected to the other second mass block 2312. When there are three second mass blocks 2312, there are two intermediate damping elements. The three second mass blocks 2312 are located on one side of the first mass block 2311 along the first direction, and are sequentially designated as the first, second, and third second mass blocks 2312 along the direction away from the first mass block 2311. The intermediate damping element is divided into a first intermediate damping element and a second intermediate damping element. The first second mass block 2312 is connected to the first mass block 2311 via a first damping element 2313; the second second mass block 2312 is connected to the first second mass block 2312 via a first intermediate damping element; the third second mass block 2312 is connected to the second second mass block 2312 via a second intermediate damping element; and so on.

[0121] In this design, the number of the second mass block 2312 can be designed according to the actual vibration consumption requirements to meet the damping energy consumption requirements and increase the energy consumption effect of the damping unit 231.

[0122] In one possible implementation, there are two second mass blocks 2312, one of which is located on one side of the first mass block 2311 along a first direction, and the other is located on the other side of the first mass block 2311 along the first direction. Correspondingly, there are two first damping elements 2313, one of which is connected to the first mass block 2311 via a first damping element 2313, and the other is connected to the first mass block 2311 via another first damping element 2313. A second damping element 2314 is provided on the side of each of the two second mass blocks 2312 facing away from the first mass block 2311, so that they are respectively connected to the housing 232 via the second damping element 2314.

[0123] In this design, the damping unit 231 is connected to the housing 232 via the second damping element 2314 on both sides of the first direction. When the support frame 1 vibrates, the first mass block 2311 is provided with the first damping element 2313 and the second damping element 2314 on both sides of the first direction, which can increase the damping energy dissipation effect of the damping unit 231 along the first direction.

[0124] In one possible implementation, there are two third mass blocks 2315, one of which is located on one side of the first mass block 2311 along the second direction, and the other is located on the other side of the first mass block 2311 along the second direction. Correspondingly, there are two third damping elements 2316, one of which is connected to the first mass block 2311 via a third damping element 2316, and the other is connected to the first mass block 2311 via another third damping element 2316. A fourth damping element 2317 is provided on the side of each of the two third mass blocks 2315 opposite to the first mass block 2311, so that they are respectively connected to the housing 232 via the fourth damping element 2317.

[0125] In this design, the damping unit 231 is connected to the housing 232 via the fourth damping element 2317 on both sides of the second direction. When the support frame 1 vibrates, the first mass block 2311 is provided with the third damping element 2316 and the fourth damping element 2317 on both sides of the second direction, which can increase the damping energy dissipation effect of the damping unit 231 along the second direction.

[0126] In one possible implementation, a fourth mass block, a sixth damping element, and a seventh damping element can be provided at a preset direction position of the first mass block 2311, according to actual design requirements. The sixth damping element is positioned between the first mass block 2311 and the fourth mass block, and is connected to both the first mass block 2311 and the fourth mass block respectively. One end of the seventh damping element is connected to the fourth mass block, and the other end is connected to the inner wall of the housing 232. The preset direction at this location differs from the first, second, and third directions to meet the vibration suppression requirements of different devices.

[0127] In one possible implementation, combined with Figure 7 and Figure 8 As shown, the first damping member 2313 includes a first fixing part 23131, a second fixing part 23132, and a plurality of flexible load-bearing members 23133. The first fixing part 23131 is connected to the first mass block 2311, the second fixing part 23132 is connected to the second mass block 2312, one end of each flexible load-bearing member 23133 is connected to the first fixing part 23131, and the other end of each flexible load-bearing member 23133 is connected to the second fixing part 23132. The plurality of flexible load-bearing members 23133 are arranged at intervals along a straight line parallel to the first direction. In this configuration, the multiple flexible load-bearing components 23133 can be arranged around a straight line parallel to the first direction, which can be the axis of the flexible load-bearing component located in the middle of the multiple flexible load-bearing components 23133. The axis of the flexible load-bearing component located in the middle is parallel to the first direction, and the multiple flexible load-bearing components 23133 are spaced apart around the circumferential direction of the flexible load-bearing component located in the middle. Alternatively, the multiple flexible load-bearing components 23133 can be arranged around an abstract straight line, which is parallel to the first direction, and the multiple flexible load-bearing components 23133 are spaced apart around this abstract straight line. The first fixing part 23131 includes a first fixing plate, and the second fixing part 23132 includes a second fixing plate. The first fixing plate is bolted to the first mass block 2311, and the second fixing plate is bolted to the second mass block 2312, increasing the convenience of assembly and disassembly.

[0128] In this design, since the first mass block 2311 and the second mass block 2312 have different weights, the displacement of the larger mass block will be later than that of the smaller mass block. There is a displacement difference in the vibration between different mass blocks, which enhances the tension on the flexible load-bearing component 23133. The structural deformation capacity of the flexible load-bearing component 23133 is enhanced, and the damping energy dissipation capacity is further increased.

[0129] In one possible implementation, a plurality of flexible load-bearing components 23133 are bent between the first fixing part 23131 and the second fixing part 23132.

[0130] In this design, the flexible load-bearing component 23133 is bent. The steel wires of different strands and layers in the flexible load-bearing component 23133 slide relative to each other due to the difference in bending radius. This sliding friction will increase the damping energy dissipation effect.

[0131] In one possible implementation, the flexible load-bearing component 23133 includes a flexible structure with a certain strength, such as a steel wire rope. The steel wire rope is a flexible load-bearing component 23133 made of multiple strands of metal wire twisted according to specific rules. The steel wire is the smallest force-bearing unit of the steel wire rope. Multiple steel wires are spirally twisted around a central steel wire to form a single strand. Multiple strands are twisted around the core of the steel wire rope (in a straight line parallel to the first direction) to form the final steel wire rope.

[0132] Under this design, the displacement difference between vibrations of different mass blocks enhances the frictional pulling ability between the wires and strands of the wire rope, further increasing the damping energy dissipation capacity.

[0133] In one possible implementation, there are multiple second fixing parts 23132, which are spaced apart along a first direction. Adjacent second fixing parts 23132 are connected by multiple flexible load-bearing members 23133, and the second fixing parts 23132 that are away from the first fixing part 23131 are connected to the second mass block 2312.

[0134] Among them, multiple flexible load-bearing components 23133 between two adjacent second fixed parts 23132 form a group of flexible load-bearing components 23133. The first damping component 2313 can be arranged in a way that multiple groups of flexible load-bearing components 23133 are spaced apart along the first direction. That is, the design quantity of the flexible load-bearing component group can be one or more, which can be designed according to actual needs.

[0135] In another possible implementation, the first damping element 2313 includes a rubber block, one end of which is connected to the first mass block 2311 and the other end of which is connected to the second mass block 2312.

[0136] It is evident that the specific design of the first damping component 2313 is not restricted and can be designed according to actual needs.

[0137] In one possible implementation, the design of the second damping element 2314, the third damping element 2316, the fourth damping element 2317, and the fifth damping element 2318 is the same as that of the first damping element 2313, and will not be described in detail here.

[0138] Combination Figure 8 and Figure 9As shown, in one possible implementation, the fifth damping member 2318 includes a first fixing part 23131, two second fixing parts 23132, and two sets of flexible load-bearing members 23133. The first fixing part 23131 is connected to the first mass block 2311. One of the second fixing parts 23132 is connected to the first fixing part 23131 through a set of flexible load-bearing members 23133. Two adjacent second fixing parts 23132 are connected through another set of flexible load-bearing members 23133. The second fixing part 23132 is connected to the shell 232 to increase the energy dissipation capacity in the third direction and meet the requirements for suppressing low-frequency vibrations.

[0139] In related technologies, the use of support frames (1) in the fields of precision electron beams and optics places extremely stringent environmental requirements. To prevent water mist, dust, and particles from affecting the conduction of electron beams and light waves, the core components of these devices typically need to be used in a vacuum environment. Based on damping type, traditional TMDs include friction-type TMDs, viscous TMDs, magnetorheological TMDs, and eddy current TMDs. Viscous TMDs pose a risk of leakage, while magnetorheological and eddy current TMDs both suffer from electromagnetic interference issues, with magnetorheological TMDs also exhibiting leakage risks. Friction-type TMDs usually involve the use of rubber damping materials. Since rubber damping materials are polymers, they typically have outgassing issues and are difficult to seal, making them unsuitable for use in vacuum environments.

[0140] In response, the first damping component 2313, the second damping component 2314, the third damping component 2316, the fourth damping component 2317, and the fifth damping component 2318 of this application adopt a design of a first fixing part 23131, a second fixing part 23132, and multiple flexible load-bearing components 23133. The use of steel wire rope avoids the problem of outgassing rate. Even if small friction particles are present, they are sealed inside the housing 232, which poses less challenge to the sealing process and is easy to meet the requirements of vacuum environment use.

[0141] It is understandable that the design of the second damping element 2314, the third damping element 2316, and the fourth damping element 2317 may differ from that of the first damping element 2313. For example, rubber damping may be used. These are not restrictive.

[0142] The above embodiments further illustrate the purpose, technical solution, and advantages of this application. It should be understood that the above descriptions are merely embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A damping unit, characterized in that, include: First mass block (2311); The second mass block (2312) is provided, with the first mass block (2311) and the second mass block (2312) being spaced apart along the first direction; A first damping element (2313) and a second damping element (2314) are provided. The first damping element (2313) is disposed between the first mass block (2311) and the second mass block (2312). The first damping element (2313) is connected to the first mass block (2311) and the second mass block (2312) respectively. One end of the second damping element (2314) is connected to the second mass block (2312). The length directions of the first damping element (2313) and the second damping element (2314) are parallel to the first direction.

2. The damping unit according to claim 1, characterized in that, The first mass block (2311) has a first mass, the second mass block (2312) has a second mass, the first mass and the second mass are not equal, and the difference between the first mass and the second mass is greater than a first preset threshold.

3. The damping unit according to claim 1, characterized in that, The damping unit (231) further includes a third mass block (2315), a third damping element (2316), and a fourth damping element (2317). The third mass block (2315) is spaced apart from the first mass block (2311) along a second direction, which is not parallel to the first direction. The third damping element (2316) is disposed between the first mass block (2311) and the third mass block (2315), and the third damping element (2316) is connected to the first mass block (2311) and the third mass block (2315) respectively. One end of the fourth damping element (2317) is connected to the third mass block (2315). The length directions of the third damping element (2316) and the fourth damping element (2317) are parallel to the second direction.

4. The damping unit according to claim 3, characterized in that, The damping unit (231) further includes a fifth damping element (2318), one end of which is connected to the first mass block (2311). The length direction of the fifth damping element (2318) is parallel to a third direction, and the third direction is perpendicular to the plane containing the first direction and the second direction.

5. The damping unit according to claim 3, characterized in that, The first mass block (2311) has a first mass, and the third mass block (2315) has a third mass. The first mass and the third mass are not equal, and the difference between the first mass and the third mass is greater than a second preset threshold.

6. The damping unit according to claim 1, characterized in that, There are multiple second mass blocks (2312), each of which is located on one side of the first mass block (2311), and the multiple second mass blocks (2312) are spaced apart along the first direction; The damping unit (231) further includes an intermediate damping element, and two adjacent second mass blocks (2312) are connected by one of the intermediate damping elements.

7. The damping unit according to any one of claims 1-6, characterized in that, The first damping member (2313) includes a first fixing part (23131), a second fixing part (23132), and a plurality of flexible load-bearing members (23133). The first fixing part (23131) is connected to the first mass block (2311), the second fixing part (23132) is connected to the second mass block (2312), one end of each flexible load-bearing member (23133) is connected to the first fixing part (23131), and the other end of each flexible load-bearing member (23133) is connected to the second fixing part (23132). The plurality of flexible load-bearing members (23133) are arranged at intervals along a straight line parallel to the first direction.

8. The damping unit according to claim 7, characterized in that, Multiple flexible load-bearing components (23133) are bent between the first fixing part (23131) and the second fixing part (23132).

9. A damping module, characterized in that, It includes a housing (232) and a damping unit (231) as described in any one of claims 1-8; the housing (232) forms a receiving cavity (2321), the damping unit (231) is disposed in the receiving cavity (2321), and the other end of the second damping member (2314) is connected to the cavity wall of the receiving cavity (2321).

10. A structural vibration control device, characterized in that, include: The fixed module (21), the connecting rod (22), and the damping module (23) as described in claim 9 are provided. The connecting rod (22) is connected to both the fixed module (21) and the damping module (23). The fixed module (21) and the damping module (23) are spaced apart along the length direction of the connecting rod (22).

11. The structural vibration control device according to claim 10, characterized in that, The damping module (23) is connected to the connecting rod (22) by an adjustment structure, which is used to adjust the distance between the damping module (23) and the fixed module (21).

12. The structural vibration control device according to claim 11, characterized in that, The adjustment structure includes a bolt, a first connecting hole (2322), and a plurality of second connecting holes (221). The first connecting hole (2322) is disposed on the housing (232), and the plurality of second connecting holes (221) are spaced apart on the connecting rod (22) along the length direction of the connecting rod (22). The bolt is used to connect the first connecting hole (2322) and the second connecting hole (221) corresponding to the first connecting hole (2322).

13. The structural vibration control device according to claim 10, characterized in that, The connecting rod (22) is provided with a frequency scale mark (223), and the length direction of the frequency scale mark (223) is parallel to the length direction of the connecting rod (22).

14. The structural vibration control device according to claim 10, characterized in that, The fixing module (21) is provided with a connecting surface (2123) for connecting with the support frame (1), and the damping module (23) has a preset surface (2325) facing the support frame (1), the preset surface (2325) being parallel and spaced apart from the connecting surface (2123).

15. A device, characterized in that, The device includes a support frame (1), a main body, and a structural vibration control device as described in any one of claims 10-14, wherein the main body is connected to the support frame (1), and the structural vibration control device (2) is disposed on the support frame (1).

Images