A collision-type rotary spring mass damper

Abstract

The present invention provides a collision-type rotary spring mass damper, which includes a rotating shaft. A separating rotor is provided on the rotating shaft. The separating rotor includes a separating plate rotating bearing and three separating plates. Six eccentric rotors are provided on the rotating shaft, and two eccentric rotors are respectively provided between every two adjacent separating plates. Each eccentric rotor includes an additional mass block, a connecting rod, a spring, and an eccentric rotor bearing. The inner ring of the eccentric rotor bearing is fixedly installed on the rotating shaft. One end of the connecting rod is fixedly connected to the outer ring of the eccentric rotor bearing. The additional mass block is slidably installed on the connecting rod. The spring is sleeved on the connecting rod, and the spring is connected between the eccentric rotor bearing and the additional mass block. The present invention has significant energy consumption, does not require additional damping devices, is beneficial to reducing space requirements, is not sensitive to frequency changes, and the collision will not directly impact the main structure, avoiding adverse effects such as sudden increase in the acceleration of the main structure and local damage.

Description

Technical Field

[0001] The present invention relates to the technical field of dampers, and particularly to a collision-type rotary spring mass damper. Background Art

[0002] At present, structural control devices mainly include tuned mass dampers and collision dampers.

[0003] Among them, a tuned mass damper usually consists of an additional mass, a spring component, and a damping component. The additional mass is respectively connected to the main structure through the spring component and the damping component. The tuned mass damper is generally placed at a location where the vibration of the main structure is large (such as the top floor of a high-rise building structure). The additional mass is relatively small compared to the mass of the main structure. When the natural vibration frequency of the tuned mass damper is tuned to the main natural vibration frequency of the main structure, the two form a resonance mechanism, and the tuned mass damper vibrates violently, consuming energy through its own damping, and the vibration of the main structure rapidly decreases. However, the vibration reduction performance of the existing tuned mass damper is sensitive to frequency changes, requires a large space, and an additional damping device needs to be set up.

[0004] Among them, a collision damper consists of a single or multiple additional masses and a braking device. The additional mass is a free mass, and the braking device is fixedly installed on the main structure and can be regarded as a part of the main structure. The vibration of the main structure drives the movement of the additional mass. During the reciprocating movement of the additional mass, it collides with the braking device (i.e., the main structure), consuming a large amount of energy at the moment of collision, and can effectively reduce the vibration of the main structure. The collision of the collision damper occurs between the additional mass and the main structure, and a huge impact force will be generated at the moment of collision, causing a sharp increase in the structural acceleration, discomfort to the human body, and exacerbating psychological panic. Moreover, the collision force directly acting on the main structure may also cause damage to the connecting parts and structural members, seriously affecting the use function of the collision damper. Summary of the Invention

[0005] The purpose of the present invention is to provide a collision-type rotary spring mass damper, which can solve the problems existing in the existing tuned mass damper, such as the vibration reduction performance being sensitive to frequency changes, large space requirements, and the need for an additional damping device, and solve the problems existing in the existing collision damper, such as the sharp increase in the main structure acceleration and local damage caused by the collision force directly impacting the main structure.

[0006] On the one hand, the present invention provides a collision-type rotary spring mass damper, including a rotating shaft, on which a separating rotor is provided. The separating rotor includes a separating plate rotating bearing and three separating plates. The inner ring of the separating plate rotating bearing is fixedly installed on the rotating shaft, and the three separating plates are respectively fixedly connected to the outer ring of the separating plate rotating bearing, and the three separating plates are respectively distributed in a circumferential manner along the outer ring of the separating plate rotating bearing;

[0007] Six eccentric rotors are provided on the rotating shaft, and two of the eccentric rotors are respectively provided between every two adjacent partition plates; each of the eccentric rotors includes an additional mass block, a connecting rod, a spring, and an eccentric rotor bearing. The inner ring of the eccentric rotor bearing is fixedly installed on the rotating shaft. One end of the connecting rod is fixedly connected to the outer ring of the eccentric rotor bearing. The additional mass block is slidably installed on the connecting rod. The spring is sleeved on the connecting rod, and the spring is connected between the eccentric rotor bearing and the additional mass block.

[0008] According to a collision-type rotary spring mass damper provided by the present invention, through holes for the connecting rods to pass through are provided on each of the additional mass blocks, and sliding bushings are fixedly installed in the through holes. The sliding bushings are slidably sleeved on the connecting rods.

[0009] According to a collision-type rotary spring mass damper provided by the present invention, limit stop blocks are respectively provided at the other ends of each of the connecting rods.

[0010] According to a collision-type rotary spring mass damper provided by the present invention, the rotating shaft is arranged vertically, and each of the partition plates is arranged vertically;

[0011] Each of the eccentric rotor bearings is sequentially installed on the rotating shaft from top to bottom, and each of the eccentric rotor bearings is located above the partition plate rotating bearing.

[0012] According to a collision-type rotary spring mass damper provided by the present invention, the lower ends of each of the partition plates are respectively fixedly connected to the outer rings of the partition plate rotating bearings through connecting plates.

[0013] On the other hand, the present invention provides a collision-type rotary spring mass damper, which is characterized in that it includes a rotating shaft, and a partition rotor is provided on the rotating shaft. The partition rotor includes a first partition plate rotating bearing, a second partition plate rotating bearing, a first partition plate, two second partition plates, and a third partition plate. The first partition plate rotating bearing and the second partition plate rotating bearing are respectively arranged on the rotating shaft from top to bottom in sequence, and the inner rings of the first partition plate rotating bearing and the second partition plate rotating bearing are respectively fixedly installed on the rotating shaft; the lower end of the first partition plate is fixedly connected to the outer ring of the first partition plate rotating bearing, the upper end of the third partition plate is fixedly connected to the outer ring of the second partition plate rotating bearing, and the upper and lower ends of each second partition plate are respectively fixedly connected to the outer ring of the first partition plate rotating bearing and the outer ring of the second partition plate rotating bearing in correspondence; the first partition plate and the two second partition plates are respectively distributed in a circular shape along the outer ring of the first partition plate rotating bearing, and the third partition plate and the two second partition plates are respectively distributed in a circular shape along the outer ring of the second partition plate rotating bearing;

[0014] Six eccentric rotors are provided on the rotating shaft, wherein the positions of two of the eccentric rotors correspond to the position of the first partition plate, the positions of another two of the eccentric rotors correspond to the position of the third partition plate, and the positions of the remaining two of the eccentric rotors correspond to the position of the second partition plate; each of the eccentric rotors includes an additional mass block, a connecting rod, a spring, and an eccentric rotor bearing. The inner ring of the eccentric rotor bearing is fixedly installed on the rotating shaft, one end of the connecting rod is fixedly connected to the outer ring of the eccentric rotor bearing, the additional mass block is slidably installed on the connecting rod, the spring is sleeved on the connecting rod, and the spring is connected between the eccentric rotor bearing and the additional mass block.

[0015] According to the collision-type rotary spring mass damper provided by the present invention, through holes for the connecting rods to pass through are provided on each of the additional mass blocks, and sliding bushings are fixedly installed in the through holes. The sliding bushings are slidably sleeved on the connecting rods.

[0016] According to the collision-type rotary spring mass damper provided by the present invention, limiting blocks are respectively provided at the other ends of each of the connecting rods.

[0017] According to the collision-type rotary spring mass damper provided by the present invention, the rotating shaft is arranged vertically, the first partition plate is arranged vertically, each of the second partition plates is arranged vertically, and the third partition plate is arranged vertically;

[0018] Each of the eccentric rotor bearings is installed on the rotating shaft in sequence from top to bottom. Among them, two of the eccentric rotor bearings are respectively located above the rotating bearing of the first partition plate, another two of the eccentric rotor bearings are respectively located below the rotating bearing of the second partition plate, and the remaining two of the eccentric rotor bearings are respectively located between the rotating bearing of the first partition plate and the rotating bearing of the second partition plate.

[0019] For a collision-type rotary spring mass damper provided by the present invention, the lower end of the first partition plate is fixedly connected to the outer ring of the rotating bearing of the first partition plate through a first connecting plate, the upper end of the third partition plate is fixedly connected to the outer ring of the rotating bearing of the second partition plate through a second connecting plate, the upper ends of the second partition plates are respectively fixedly connected to the outer ring of the rotating bearing of the first partition plate through third connecting plates, and the lower ends of the second partition plates are respectively fixedly connected to the outer ring of the rotating bearing of the second partition plate through fourth connecting plates.

[0020] For the collision-type rotary spring mass damper provided by the present invention, by rotatably installing a partition rotor and a plurality of eccentric rotors on the rotating shaft, the partition rotor and each eccentric rotor can apply forces to the main structure during the rotation process, reducing the structural vibration. At the same time, since the rotation of each eccentric rotor and the partition rotor is asynchronous, when the distance between the additional mass block of the eccentric rotor and the partition rotor or between two additional mass blocks at the same height position is reduced to 0, they collide and consume energy. Since the forces of the eccentric rotors, the force of the partition rotor, and the collision have no specific directions, it can be used for vibration control under any horizontal direction excitation. Since the natural vibration frequencies of the eccentric rotors and the partition rotor change with the rotation state, they can resonate with a wide range of frequencies and are not sensitive to frequency changes. By setting springs on the eccentric rotors, the eccentric distance of the eccentric rotors can be changed, further increasing the range of the resonance frequencies of the eccentric rotors. Due to the rotational cooperation modes of the partition rotor and the eccentric rotors along the rotating shaft respectively, the stroke of the collision-type rotary spring mass damper provided by the present invention is limited within a circular trajectory, and the space requirement will not increase with the intensification of vibration, being suitable for structures with limited space. Thus, for the collision-type rotary spring mass damper provided by the present invention, the collision energy consumption is significant, there is no need to additionally set a damping device, which is beneficial to reducing the space requirement, lowering the cost, and simplifying the installation. Moreover, the collision will not directly impact the main structure, avoiding adverse effects such as a sharp increase in the acceleration of the main structure and local damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a collision-type rotary spring mass damper of the present invention;

[0023] Figure 2 It is a schematic structural diagram of a partition rotor in the collision-type rotary spring mass damper of the present invention;

[0024] Figure 3 It is a schematic structural diagram of an eccentric rotor in the collision-type rotary spring mass damper of the present invention;

[0025] Figure 4 It is an exploded structural diagram of the eccentric rotor in the collision-type rotary spring mass damper of the present invention;

[0026] Figure 5 It is an arrangement diagram of two eccentric rotors at the same height position in the collision-type rotary spring mass damper of the present invention;

[0027] Figure 6 It is an arrangement diagram of two eccentric rotors at different height positions in the collision-type rotary spring mass damper of the present invention;

[0028] Figure 7 It is another schematic structural diagram of the eccentric rotor in the collision-type rotary spring mass damper of the present invention.

[0029] Figure 8 It is another schematic structural diagram of the collision-type rotary spring mass damper of the present invention;

[0030] Figure 9 It is another schematic structural diagram of the partition rotor in the collision-type rotary spring mass damper of the present invention. Specific Embodiments

[0031] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are some embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined. In addition, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] As Figures 1 to 4 shown, the impact type rotary spring mass damper of the embodiment of the present invention includes a rotating shaft 1. A separating rotor 2 is provided on the rotating shaft 1. The separating rotor 2 includes a separating plate rotating bearing 201 and three separating plates 202. The inner ring of the separating plate rotating bearing 201 is fixedly installed on the rotating shaft 1, and the three separating plates 202 are respectively fixedly connected to the outer ring of the separating plate rotating bearing 201, and the three separating plates 202 are respectively distributed in a circumferential manner along the outer ring of the separating plate rotating bearing 201. That is, the separating rotor 2 can rotate along the rotating shaft 1.

[0035] Among them, six eccentric rotors 3 are provided on the rotating shaft 1, and two eccentric rotors 3 are respectively provided between every two adjacent separating plates 202. Each of the eccentric rotors 3 includes an additional mass block 301, a connecting rod 302, a spring 303, and an eccentric rotor bearing 304. The inner ring of the eccentric rotor bearing 304 is fixedly installed on the rotating shaft 1. One end of the connecting rod 302 is fixedly connected to the outer ring of the eccentric rotor bearing 304. The additional mass block 301 is slidably installed on the connecting rod 302. The spring 303 is sleeved on the connecting rod 302, and the spring 303 is connected between the eccentric rotor bearing 304 and the additional mass block 301. That is, each of the eccentric rotors 3 can rotate along the rotating shaft 1 respectively.

[0036] That is, each partition plate 202 and each eccentric rotor 3 are respectively distributed in a circular pattern along the rotating shaft 1. Since each partition plate 202 is fixedly installed on the outer ring of the partition plate rotating bearing 201, a collision space can be formed between every two adjacent partition plates 202 respectively. And two eccentric rotors 3 are respectively arranged between every two adjacent partition plates 202, so there are two additional mass blocks 301 between every two adjacent partition plates 202 respectively, enabling each additional mass block 301 to collide with the corresponding partition plate 202 respectively, thereby consuming energy.

[0037] During installation, the rotating shaft 1 of the collision-type rotary spring mass damper according to the embodiment of the present invention is installed on the main structure, and the rotating shaft 1 is perpendicular to the vibration plane (generally the horizontal plane) of the main structure.

[0038] For the collision-type rotary spring mass damper according to the embodiment of the present invention, through the partition rotor 2 and each eccentric rotor 3 rotatably installed on the rotating shaft 1, the partition rotor 2 and each eccentric rotor 3 can apply forces to the main structure during rotation, reducing the structural vibration. At the same time, since the rotations of the partition rotor 2 and each eccentric rotor 3 are asynchronous, when the distance between the additional mass block 301 and the partition rotor 2 is reduced to 0, or when the distance between two additional mass blocks 301 at the same height position is reduced to 0, the two will collide and consume energy. Since the forces of the eccentric rotor 3, the forces of the partition rotor 2, and the occurrence of collisions have no specific directions, it can be used for vibration control under excitation in any horizontal direction. Since the natural vibration frequencies of the eccentric rotor 3 and the partition rotor 2 change with the rotation state and can resonate with a wide range of frequencies, they are not sensitive to frequency changes. For each eccentric rotor 3 in this embodiment, by connecting a spring 303 between the additional mass block 301 and the eccentric rotor bearing 304, the eccentric distance of the eccentric rotor can be changed through the elastic deformation of the spring 303, thereby further increasing the range of the resonance frequency of the eccentric rotor. Due to the rotational cooperation mode of the partition rotor 2 and each eccentric rotor 3 along the rotating shaft 1 respectively, the stroke of the collision-type rotary spring mass damper according to the embodiment of the present invention is limited within a circular trajectory, and the space requirement will not increase with the intensification of vibration, being suitable for structures with limited space.

[0039] Therefore, for the collision-type rotary spring mass damper according to the embodiment of the present invention, the collision energy consumption is significant, there is no need to additionally set a damping device, which is beneficial to reducing the space requirement, lowering the cost and simplifying the installation, and the collision will not directly impact the main structure, avoiding adverse effects such as a sharp increase in the acceleration of the main structure and local damage.

[0040] Specifically, each partition plate 202 can be distributed in a circular pattern at equal intervals along the rotating shaft 1, or can be distributed in a circular pattern at unequal intervals.

[0041] Furthermore, through holes for the connecting rod 302 to pass through are provided on each additional mass block 301, and a sliding bushing 305 is fixedly installed in the through hole. The sliding bushing 305 is slidably sleeved on the connecting rod 302, so that the additional mass block 301 can slide along the axial direction of the connecting rod 302.

[0042] Specifically, the sliding bushing 305 can slide axially along the connecting rod 302, but the sliding bushing 305 cannot rotate radially along the connecting rod 302, so that the additional mass block 301 can slide axially along the connecting rod 302 but cannot rotate radially.

[0043] Among them, the connecting rod 302 can be set as a rectangular rod, the through hole on the additional mass block 301 can be set as a rectangular hole, and the sliding bushing 305 can be set as a corresponding rectangular bushing, so that the sliding bushing 305 can only slide axially along the connecting rod 302 but cannot rotate radially.

[0044] Alternatively, when the connecting rod 302 is a circular rod, the through hole on the additional mass block 301 is a circular hole, and the sliding bushing 305 is a cylindrical bushing, a limiting member can be provided between the connecting rod 302 and the sliding bushing 305 to limit the sliding bushing 305 to only slide axially on the connecting rod 302 and not rotate radially. For example, at least one limiting groove can be provided on the connecting rod 302, the limiting groove extends along the axial direction of the connecting rod 302, and then a sliding block adapted to the limiting groove is provided on the inner side wall of the sliding bushing 305, and the sliding block can be slidably engaged with the limiting groove, so as to achieve the purpose of limiting the sliding bushing 305 to slide axially on the connecting rod 302 and not rotate radially.

[0045] Furthermore, limiting blocks 306 are respectively provided at the other ends of the connecting rods 302 to limit the sliding position of the additional mass block 301 on the connecting rod 302.

[0046] Specifically, the rotating shaft 1 is arranged vertically, and the partition plates 202 are respectively arranged vertically. That is, the three partition plates 202 are respectively distributed radially around the rotating shaft 1.

[0047] Among them, each partition plate 202 is a rectangular plate, the upper end surfaces of the partition plates 202 are all on the same horizontal plane, and the lower end surfaces of the partition plates 202 are all on the same horizontal plane. That is, the three partition plates 202 are all at the same height position.

[0048] Among them, each eccentric rotor bearing 304 is installed on the rotating shaft 1 at intervals from top to bottom in sequence, and each eccentric rotor bearing 304 is located above the partition plate rotating bearing 201. Thus, each eccentric rotor bearing 304 and the partition plate rotating bearing 201 can be installed on the rotating shaft 1 at intervals, so that each eccentric rotor bearing 304 and the partition plate rotating bearing 201 can rotate independently along the rotating shaft 1 respectively.

[0049] Furthermore, the lower ends of each partition plate 202 are fixedly connected to the outer ring of the partition plate rotating bearing 201 through a connecting plate 4 respectively, so that an L-shaped structure is formed between the partition plate 202 and the connecting plate 4. That is, additional mass blocks 301 are respectively arranged between every two adjacent partition plates 202. During the rotation process, the additional mass blocks 301 can collide with the corresponding partition plates 202 to consume energy.

[0050] Specifically, parameters such as the size, shape, and eccentric distance of the additional mass blocks 301 of each eccentric rotor 3 can be the same or different, and can be set according to actual usage requirements.

[0051] Specifically, the additional mass blocks 301 of each eccentric rotor 3 can be installed at the same height position or at different height positions, and can be set according to actual usage requirements.

[0052] As Figure 5 shown, when the additional mass blocks 301 of two eccentric rotors 3 are at the same height position, the two additional mass blocks 301 can collide with each other to consume energy.

[0053] As Figure 6 shown, when the additional mass blocks 301 of two eccentric rotors 3 are not at the same height position, that is, the two additional mass blocks 301 are in an up-and-down positional relationship, so the two additional mass blocks 301 will not collide with each other.

[0054] Furthermore, the structural form of the eccentric rotor 3 can be adjusted according to actual usage requirements.

[0055] In a specific embodiment, as Figure 3 and Figure 4 shown, the eccentric rotor 3 includes an additional mass block 301, a connecting rod 302, a spring 303, and an eccentric rotor bearing 304.

[0056] In another specific embodiment, as Figure 7As shown in the figure, the eccentric rotor 3 includes an additional mass block 301, two connecting rods 302, two springs 303, and two eccentric rotor bearings 304. Each eccentric rotor bearing 304 is fixedly installed on the rotating shaft 1 from top to bottom. The two connecting rods 302 are parallel to each other. Through holes corresponding to the connecting rods 302 are provided on the additional mass block 301, and each connecting rod 302 passes through the corresponding through hole so that the additional mass block 301 can slide along the two connecting rods 302. A spring 303 is sleeved on each connecting rod 302, and each spring 303 is connected between the additional mass block 301 and the corresponding eccentric rotor bearing 304. For the eccentric rotor 3 with this structural form, since an additional mass block 301 is slidably installed on two connecting rods 302, it has higher stiffness and structural strength.

[0057] Specifically, the outer surface materials of the additional mass blocks 301 can be the same or different. For example, metals, viscous materials, or other suitable materials can be selected. The outer surface of each additional mass block 301 is the collision surface of each additional mass block 301.

[0058] Specifically, the outer surface materials of the partition plates 202 can be the same or different. For example, metals, viscous materials, or other suitable materials can be selected. The outer surface of each partition plate 202 is the collision surface of each partition plate 202.

[0059] On the other hand, as Figure 8 and Figure 9 shown, the collision-type rotary spring mass damper according to the embodiment of the present invention includes a rotating shaft 1. A partition rotor 2 is provided on the rotating shaft 1. The partition rotor 2 includes a first partition plate rotating bearing 21, a second partition plate rotating bearing 22, a first partition plate 23, two second partition plates 24, and a third partition plate 25. The first partition plate rotating bearing 21 and the second partition plate rotating bearing 22 are sequentially arranged at intervals from top to bottom on the rotating shaft 1, and the inner rings of the first partition plate rotating bearing 21 and the second partition plate rotating bearing 22 are fixedly installed on the rotating shaft 1 respectively. The lower end of the first partition plate 23 is fixedly connected to the outer ring of the first partition plate rotating bearing 21, the upper end of the third partition plate 25 is fixedly connected to the outer ring of the second partition plate rotating bearing 22, and the upper and lower ends of each second partition plate 24 are fixedly connected to the outer rings of the first partition plate rotating bearing 21 and the second partition plate rotating bearing 22 respectively. The first partition plate 23 and the two second partition plates 24 are respectively distributed in a circumferential manner along the outer ring of the first partition plate rotating bearing 21, and the third partition plate 25 and the two second partition plates 24 are respectively distributed in a circumferential manner along the outer ring of the second partition plate rotating bearing 22. That is to say, the partition rotor 2 can rotate along the rotating shaft 1.

[0060] Among them, six eccentric rotors 3 are provided on the rotating shaft 1. The positions of two of the eccentric rotors 3 correspond to the position of the first partition plate 23, the positions of another two eccentric rotors 3 correspond to the position of the third partition plate 25, and the positions of the remaining two eccentric rotors 3 correspond to the position of the second partition plate 24. And each second partition plate 24 is respectively located between two eccentric rotors 3. Each of the eccentric rotors 3 includes an additional mass block 301, a connecting rod 302, a spring 303 and an eccentric rotor bearing 304. The inner ring of the eccentric rotor bearing 304 is fixedly installed on the rotating shaft 1. One end of the connecting rod 302 is fixedly connected to the outer ring of the eccentric rotor bearing 304. The additional mass block 301 is slidably installed on the connecting rod 302. The spring 303 is sleeved on the connecting rod 302, and the spring 303 is connected between the eccentric rotor bearing 304 and the additional mass block 301. That is, each of the eccentric rotors 3 can rotate along the rotating shaft 1 respectively.

[0061] Since the lower end of the first partition plate 23 is fixedly connected to the outer ring of the first partition plate rotating bearing 21, the upper end of the third partition plate 25 is fixedly connected to the outer ring of the second partition plate rotating bearing 22, and the upper and lower ends of each second partition plate 24 are respectively fixedly connected to the outer ring of the first partition plate rotating bearing 21 and the outer ring of the second partition plate rotating bearing 22 correspondingly, the first partition plate 23, the second partition plate 24 and the third partition plate 25 are arranged from top to bottom respectively.

[0062] Since the positions of two of the eccentric rotors 3 correspond to the position of the first partition plate 23, the additional mass blocks 301 of these two eccentric rotors 3 can collide with the first partition plate 23, thereby consuming energy. Since the positions of another two eccentric rotors 3 correspond to the position of the third partition plate 25, the additional mass blocks 301 of these two eccentric rotors 3 can collide with the third partition plate 25, thereby consuming energy. Since the positions of the remaining two eccentric rotors 3 correspond to the position of the second partition plate 24, and each second partition plate 24 is respectively located between these two eccentric rotors 3, the additional mass blocks 301 of these two eccentric rotors 3 can respectively collide with each second partition plate 24, thereby consuming energy.

[0063] During installation, the rotating shaft 1 of the collision-type rotary spring mass damper according to the embodiment of the present invention is installed on the main structure, and the rotating shaft 1 is perpendicular to the vibration plane (generally the horizontal plane) of the main structure.

[0064] The impact-type rotary spring mass damper according to the embodiment of the present invention includes a partition rotor 2 rotatably mounted on a rotating shaft 1 and each eccentric rotor 3. During the rotation process of the partition rotor 2 and each eccentric rotor 3, forces can be applied to the main structure, thereby reducing structural vibration. At the same time, since the rotations of the partition rotor 2 and each eccentric rotor 3 are asynchronous, when the distance between the additional mass block 301 and the partition rotor 2 is reduced to 0, or when the distance between two additional mass blocks 301 at the same height position is reduced to 0, a collision occurs between them, consuming energy. Since the forces of the eccentric rotor 3, the force of the partition rotor 2, and the occurrence of the collision do not have a specific direction, it can be used for vibration control under any horizontal direction excitation. Since the natural vibration frequencies of the eccentric rotor 3 and the partition rotor 2 change with the rotation state and can resonate with a wide range of frequencies, they are not sensitive to frequency changes. For each eccentric rotor 3 in this embodiment, by connecting a spring 303 between the additional mass block 301 and the eccentric rotor bearing 304, the eccentric distance of the eccentric rotor can be changed through the elastic deformation of the spring 303, thereby further increasing the range of the resonance frequency of the eccentric rotor. Since the partition rotor 2 and each eccentric rotor 3 are respectively arranged to rotate in cooperation with the rotating shaft 1, the stroke of the impact-type rotary spring mass damper according to the embodiment of the present invention is limited within a circular trajectory, and the space requirement will not increase with the intensification of vibration, making it suitable for structures with limited space.

[0065] Therefore, for the impact-type rotary spring mass damper according to the embodiment of the present invention, the energy consumption by collision is significant, and there is no need to additionally provide a damping device, which is beneficial to reducing the space requirement, lowering the cost, and simplifying the installation. Moreover, the collision will not directly impact the main structure, avoiding adverse effects such as a sharp increase in the acceleration of the main structure and local damage.

[0066] Furthermore, the rotating shaft 1 is arranged vertically, the first partition plate 23 is arranged vertically, each second partition plate 24 is arranged vertically, and the third partition plate 25 is arranged vertically.

[0067] Among them, each eccentric rotor bearing 304 is respectively installed on the rotating shaft 1 at intervals from top to bottom. Two of the eccentric rotor bearings 304 are respectively located above the rotating bearing 21 of the first partition plate, another two eccentric rotor bearings 304 are respectively located below the rotating bearing 22 of the second partition plate, and the remaining two eccentric rotor bearings 304 are respectively located between the rotating bearing 21 of the first partition plate and the rotating bearing 22 of the second partition plate. Thus, the rotating bearing 21 of the first partition plate, the rotating bearing 22 of the second partition plate, and each eccentric rotor bearing 304 can be installed on the rotating shaft 1 at intervals, so that the rotating bearing 21 of the first partition plate, the rotating bearing 22 of the second partition plate, and each eccentric rotor bearing 304 can respectively rotate independently along the rotating shaft 1.

[0068] Specifically, the first partition plate 23 and the two second partition plates 24 can be respectively arranged in a circumferential distribution at equal intervals or unequal intervals along the first partition plate rotating bearing 21. The third partition plate 25 and the two second partition plates 24 can be respectively arranged in a circumferential distribution at equal intervals or unequal intervals along the outer ring of the second partition plate rotating bearing 22.

[0069] When the first partition plate 23 and the two second partition plates 24 are respectively arranged in a circumferential distribution at equal intervals along the first partition plate rotating bearing 21, and the third partition plate 25 and the two second partition plates 24 are respectively arranged in a circumferential distribution at equal intervals along the outer ring of the second partition plate rotating bearing 22, the first partition plate 23 is located directly above the third partition plate 25, and the first partition plate 23 and the third partition plate 25 are in the same vertical plane.

[0070] Furthermore, through holes for the connecting rod 302 to pass through are provided on each additional mass block 301, and a sliding bushing 305 is fixedly installed in the through hole. The sliding bushing 305 is slidably sleeved on the connecting rod 302 so that the additional mass block 301 can slide along the axial direction of the connecting rod 302.

[0071] Specifically, the sliding bushing 305 can slide axially along the connecting rod 302, but the sliding bushing 305 cannot rotate radially along the connecting rod 302, so that the additional mass block 301 can slide axially along the connecting rod 302 but cannot rotate radially.

[0072] Among them, the connecting rod 302 can be set as a rectangular rod, the through hole on the additional mass block 301 can be set as a rectangular hole, and the sliding bushing 305 can be set as a corresponding rectangular bushing, so that the sliding bushing 305 can only slide axially along the connecting rod 302 but cannot rotate radially.

[0073] Alternatively, when the connecting rod 302 is a circular rod, the through hole on the additional mass block 301 is a circular hole, and the sliding bushing 305 is a cylindrical bushing, a limiting member can be provided between the connecting rod 302 and the sliding bushing 305 to limit the sliding bushing 305 to only slide axially on the connecting rod 302 and not rotate radially. For example, at least one limiting groove can be provided on the connecting rod 302, and the limiting groove extends along the axial direction of the connecting rod 302. Then, a slider adapted to the limiting groove is provided on the inner side wall of the sliding bushing 305, and the slider can slidably cooperate with the limiting groove, so as to achieve the purpose of limiting the sliding bushing 305 to slide axially on the connecting rod 302 and not rotate radially.

[0074] Furthermore, limiting blocks 306 are respectively provided at the other ends of the connecting rods 302 to limit the sliding position of the additional mass block 301 on the connecting rod 302.

[0075] Furthermore, the lower end of the first partition plate 23 is fixedly connected to the outer ring of the first partition plate rotating bearing 21 through the first connecting plate 5, the upper end of the third partition plate 25 is fixedly connected to the outer ring of the second partition plate rotating bearing 22 through the second connecting plate, the upper ends of the second partition plates 24 are respectively fixedly connected to the outer ring of the first partition plate rotating bearing 21 through the third connecting plates 6, and the lower ends of the second partition plates 24 are respectively fixedly connected to the outer ring of the second partition plate rotating bearing 22 through the fourth connecting plates 7.

[0076] Specifically, parameters such as the size, shape, and eccentricity distance of the additional mass blocks 301 of each eccentric rotor 3 can be the same or different, and can be set according to actual usage requirements.

[0077] Specifically, the additional mass blocks 301 of the two eccentric rotors 3 corresponding to the first partition plate 23 can be installed at the same height position or at different height positions, and can be set according to actual usage requirements.

[0078] Specifically, the additional mass blocks 301 of the two eccentric rotors 3 corresponding to the second partition plate 24 can be installed at the same height position or at different height positions, and can be set according to actual usage requirements.

[0079] Specifically, the additional mass blocks 301 of the two eccentric rotors 3 corresponding to the third partition plate 25 can be installed at the same height position or at different height positions, and can be set according to actual usage requirements.

[0080] As Figure 5 shown, when the additional mass blocks 301 of the two eccentric rotors 3 are at the same height position, the two additional mass blocks 301 can collide with each other to consume energy.

[0081] As Figure 6 shown, when the additional mass blocks 301 of the two eccentric rotors 3 are not at the same height position, that is, the two additional mass blocks 301 are in an up-and-down position relationship, so the two additional mass blocks 301 will not collide with each other.

[0082] Furthermore, the structural form of the eccentric rotor 3 can be adjusted according to actual usage requirements. That is, the eccentric rotor 3 can adopt the structural forms as shown in Figure 3 and Figure 4 shown, or can also adopt the structural form as shown in Figure 7 shown. When the eccentric rotor 3 adopts the structural form as shown in Figure 7 shown, since an additional mass block 301 is slidably installed on two connecting rods 302, it has higher stiffness and structural strength.

[0083] Specifically, the outer surface materials of the respective additional mass blocks 301 may be the same or different. For example, metals, viscous materials, or other suitable materials may be selected. The outer surface of each additional mass block 301 is the collision surface of each additional mass block 301.

[0084] Specifically, the outer surface materials of the first partition plate 23, the second partition plate 24, and the third partition plate 25 may be the same or different. For example, metals, viscous materials, or other suitable materials may be selected. The outer surface of the first partition plate 23 is the collision surface of the first partition plate 23, the outer surface of the second partition plate 24 is the collision surface of the second partition plate 24, and the outer surface of the third partition plate 25 is the collision surface of the third partition plate 25.

[0085] 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 them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A collision-type rotary spring mass damper, characterized in that, It includes a rotating shaft, on which a separating rotor is provided. The separating rotor includes a separating plate rotating bearing and three separating plates. The inner ring of the separating plate rotating bearing is fixedly installed on the rotating shaft, and the three separating plates are respectively fixedly connected to the outer ring of the separating plate rotating bearing, and the three separating plates are respectively distributed in a circumferential manner along the outer ring of the separating plate rotating bearing; Six eccentric rotors are provided on the rotating shaft, and two of the eccentric rotors are respectively provided between every two adjacent separating plates; each of the eccentric rotors includes an additional mass block, a connecting rod, a spring and an eccentric rotor bearing. The inner ring of the eccentric rotor bearing is fixedly installed on the rotating shaft, one end of the connecting rod is fixedly connected to the outer ring of the eccentric rotor bearing, the additional mass block is slidably installed on the connecting rod, the spring is sleeved on the connecting rod, and the spring is connected between the eccentric rotor bearing and the additional mass block.

2. The impact type rotary spring mass damper according to claim 1, characterized in that, A through hole for the connecting rod to pass through is provided on each of the additional mass blocks, and a sliding shaft sleeve is fixedly installed in the through hole, and the sliding shaft sleeve is slidably sleeved on the connecting rod.

3. The impact type rotary spring mass damper according to claim 1, characterized in that, A limit stop block is respectively provided at the other end of each of the connecting rods.

4. The impact type rotary spring mass damper according to claim 1, characterized in that, The rotating shaft is arranged vertically, and each of the separating plates is arranged vertically; Each of the eccentric rotor bearings is installed on the rotating shaft in sequence from top to bottom, and each of the eccentric rotor bearings is located above the separating plate rotating bearing.

5. The impact type rotary spring mass damper according to claim 4, characterized in that The lower ends of each of the separating plates are respectively fixedly connected to the outer ring of the separating plate rotating bearing through a connecting plate.

6. A collision-type rotary spring mass damper, characterized in that, It includes a rotating shaft, on which a separating rotor is provided. The separating rotor includes a first separating plate rotating bearing, a second separating plate rotating bearing, a first separating plate, two second separating plates and a third separating plate. The first separating plate rotating bearing and the second separating plate rotating bearing are respectively arranged on the rotating shaft in sequence from top to bottom, and the inner rings of the first separating plate rotating bearing and the second separating plate rotating bearing are respectively fixedly installed on the rotating shaft; the lower end of the first separating plate is fixedly connected to the outer ring of the first separating plate rotating bearing, the upper end of the third separating plate is fixedly connected to the outer ring of the second separating plate rotating bearing, and the upper and lower ends of each of the second separating plates are respectively fixedly connected to the outer ring of the first separating plate rotating bearing and the outer ring of the second separating plate rotating bearing correspondingly; the first separating plate and the two second separating plates are respectively distributed in a circumferential manner along the outer ring of the first separating plate rotating bearing, and the third separating plate and the two second separating plates are respectively distributed in a circumferential manner along the outer ring of the second separating plate rotating bearing; Six eccentric rotors are provided on the rotating shaft, wherein the positions of two of the eccentric rotors correspond to the position of the first partition plate, the positions of another two of the eccentric rotors correspond to the position of the third partition plate, and the positions of the remaining two of the eccentric rotors correspond to the position of the second partition plate; each of the eccentric rotors includes an additional mass block, a connecting rod, a spring, and an eccentric rotor bearing. The inner ring of the eccentric rotor bearing is fixedly installed on the rotating shaft. One end of the connecting rod is fixedly connected to the outer ring of the eccentric rotor bearing. The additional mass block is slidably installed on the connecting rod. The spring is sleeved on the connecting rod, and the spring is connected between the eccentric rotor bearing and the additional mass block.

7. The impact type rotary spring mass damper according to claim 6, characterized in that, Through holes for the connecting rods to pass through are provided on each of the additional mass blocks, and sliding bushings are fixedly installed in the through holes. The sliding bushings are slidably sleeved on the connecting rods.

8. The impact type rotary spring mass damper according to claim 6, characterized in that, Limit stop blocks are respectively provided at the other ends of the connecting rods.

9. The impact type rotary spring mass damper according to claim 6, wherein, The rotating shaft is arranged vertically, the first partition plate is arranged vertically, each of the second partition plates is arranged vertically, and the third partition plate is arranged vertically; The eccentric rotor bearings are respectively installed on the rotating shaft from top to bottom in sequence. Two of the eccentric rotor bearings are respectively located above the rotating bearing of the first partition plate, another two of the eccentric rotor bearings are respectively located below the rotating bearing of the second partition plate, and the remaining two of the eccentric rotor bearings are respectively located between the rotating bearing of the first partition plate and the rotating bearing of the second partition plate.

10. The impact type rotary spring mass damper according to claim 9, characterized in that, The lower end of the first partition plate is fixedly connected to the outer ring of the rotating bearing of the first partition plate through a first connecting plate. The upper end of the third partition plate is fixedly connected to the outer ring of the rotating bearing of the second partition plate through a second connecting plate. The upper ends of the second partition plates are respectively fixedly connected to the outer ring of the rotating bearing of the first partition plate through third connecting plates. The lower ends of the second partition plates are respectively fixedly connected to the outer ring of the rotating bearing of the second partition plate through fourth connecting plates.

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