Spring damper and damping system

Abstract

The invention relates to a spring shock absorber and a shock absorption system, and belongs to the technical field of precise shock absorption, the spring shock absorber comprises a vertical shock absorption assembly comprising a spring, an upper limiting structure and a lower limiting structure, the lower limiting structure is connected to a bottom plate, the upper limiting structure is located on the side, away from the bottom plate, of the lower limiting structure, and the upper limiting structure and the lower limiting structure are oppositely arranged at an interval; the upper limiting structure is connected to the load, and the spring is vertically arranged between the upper limiting structure and the lower limiting structure; the horizontal limiting assembly comprises a fixing seat and a leaf spring, the fixing seat is connected with the bottom plate, one end of the leaf spring is connected with the fixing seat, the other end of the leaf spring is connected with the upper limiting structure and / or the lower limiting structure, and therefore due to the fact that the leaf spring is small in vertical rigidity and large in horizontal rigidity, movement of the vertical vibration reduction assembly in the horizontal direction can be limited through the leaf spring; the spring shock absorber can have both small vertical rigidity and large horizontal rigidity, so that the purpose of improving the load horizontal stability is achieved, and the shock absorption performance of the spring shock absorber is improved.

Description

Technical Field

[0001] The present application relates to the technical field of precision vibration reduction, and in particular to a spring vibration reducer and a vibration reduction system. Background Art

[0002] Metal springs are known to be used in many vibration reduction systems for passive vibration reduction of important components, absorbing and filtering vibration shocks. Usually, three or more spring vibration reductions plus active control components, such as different numbers of voice coil motors arranged in horizontal and vertical directions, form an active vibration reduction system. Metal springs are commonly found in many forms, such as helical springs, leaf springs, etc. The above vibration reduction system generally has three or more helical springs in the vertical direction to provide effective support for the load and achieve effective vibration reduction function above the natural frequency of the system composed of the spring and the load.

[0003] However, the above-mentioned spring vibration reduction system has a problem of low vibration reduction performance. Summary of the invention

[0004] The purpose of the present application is to provide a spring damper and a damping system to improve the damping performance of the existing spring damping system.

[0005] An embodiment of the present application provides a spring damper, which includes: a vertical damping assembly, including a spring, an upper limit structure and a lower limit structure, wherein the lower limit structure is connected to a base plate, the upper limit structure is located on the side of the lower limit structure away from the base plate, and is arranged relatively spaced from the lower limit structure, and the upper limit structure is connected to a load, and the spring is vertically arranged between the upper limit structure and the lower limit structure; a horizontal limit assembly, including a fixed seat and a leaf spring, wherein the fixed seat is connected to the base plate, and one end of the leaf spring is connected to the fixed seat, and the other end is connected to the upper limit structure and / or the lower limit structure.

[0006] Among them, the fixed seat includes a lower support seat and an upper support seat, wherein the upper support seat is connected to the base plate through the lower support seat; the horizontal limiting assembly also includes a vertical floating plate, the vertical floating plate and the upper support seat are arranged relatively spaced apart in the horizontal direction, the leaf spring is arranged parallel to the horizontal plane, the number of leaf springs is multiple, and each of the multiple leaf springs is respectively connected to the upper support seat and the vertical floating plate at two opposite ends along its length direction, so that the vertical floating plate and the upper support seat are connected together by multiple leaf springs to form a hollow structure with openings at both ends along the vertical direction, and the upper limit structure and / or the lower limit structure of the vertical vibration damping assembly is connected to the vertical floating plate, and the spring of the vertical vibration damping assembly is at least partially accommodated in the hollow structure.

[0007] Among them, the horizontal limit assembly also includes a plurality of leaf spring locking structures, and a plurality of leaf spring slots are respectively provided on the upper support seat and the vertical floating plate; one end of the leaf spring along its length direction is connected to the corresponding leaf spring slot on the upper support seat through the corresponding leaf spring locking structure, and the other end of the leaf spring along its length direction is connected to the corresponding leaf spring slot on the vertical floating plate through the corresponding leaf spring locking structure, and the leaf spring locking structure corresponding to the leaf spring is configured to prevent the leaf spring from moving along its length direction, and the leaf spring slot corresponding to the leaf spring is configured to prevent the leaf spring from moving along its width direction.

[0008] In which, the leaf spring is provided with openings at both ends along its length direction; the leaf spring slot includes a first groove, a second groove provided on the middle area of ​​the bottom wall of the first groove, and a third groove provided on the middle area of ​​the bottom wall of the second groove; the leaf spring locking structure includes a leaf spring locking block and a leaf spring locking screw, wherein the leaf spring locking block includes a base and a protrusion, the base has a first surface and a second surface relative to each other, the protrusion is provided on the middle area of ​​the first surface of the base, the leaf spring locking block is provided with a through hole that passes through the base and the protrusion, and the first surface of the base is arranged toward the bottom wall of the first groove, the leaf spring is arranged between the first surface of the base and the bottom wall of the first groove, the protrusion is arranged toward the bottom wall of the second groove, and extends through the opening into the second groove, the leaf spring locking screw extends through the through hole into the third groove, and is connected to the bottom wall of the third groove.

[0009] The length of the protrusion extending into the second groove is smaller than the depth of the second groove.

[0010] In which, the upper support seat has a first surface facing the bottom plate and a second surface facing away from the bottom plate, the vertical floating plate has a first surface facing the bottom plate and a second surface facing away from the bottom plate, and the horizontal limiting assembly includes a first leaf spring, a second leaf spring, a third leaf spring and a fourth leaf spring; wherein the first leaf spring and the second leaf spring are arranged relative to each other in the horizontal direction, and one end of the first leaf spring along its length direction and one end of the second leaf spring along its length direction are respectively connected to the opposite side edge areas of the first surface of the upper support seat, and the other end of the first leaf spring along its length direction and the other end of the second leaf spring along its length direction are respectively connected to the opposite side edge areas of the first surface of the vertical floating plate; the third leaf spring and the fourth leaf spring are arranged relative to each other in the horizontal direction, and one end of the third leaf spring along its length direction and one end of the fourth leaf spring along its length direction are respectively connected to the opposite side edge areas of the second surface of the upper support seat, and the other end of the third leaf spring along its length direction and the other end of the fourth leaf spring along its length direction are respectively connected to the opposite side edge areas of the second surface of the vertical floating plate.

[0011] The spring damper further comprises: a connecting rod and a load transfer block, wherein the connecting rod is arranged vertically, and opposite ends of the connecting rod are respectively connected to the load transfer block and the upper limit structure, and the load transfer block is connected to the load.

[0012] Among them, the upper limit structure includes an upper limit plate and a first protrusion, wherein the upper limit plate has a first surface facing away from the lower limit structure and a second surface facing the lower limit structure, the first protrusion is arranged on the middle area of ​​the second surface of the upper limit plate, one end of the spring is sleeved on the first protrusion and abuts against the second surface of the upper limit plate; an installation groove is provided in the middle area of ​​the first surface of the upper limit plate, the opening width of the installation groove is greater than the width of the connecting rod, and one end of the connecting rod is connected to the load through a load transfer block, and the other end of the connecting rod extends into the installation groove and is connected to the middle area of ​​the bottom wall of the installation groove.

[0013] Among them, the lower limit structure includes a lower limit plate and a support rod, wherein the support rod is arranged vertically, and one end of the support rod is fixedly connected to the base plate, the lower limit plate is set on the support rod, and the position of the lower limit plate on the support rod is adjustable; the vertical vibration reduction assembly also includes a nut, the nut is located between the lower limit plate and the base plate, and is connected to the support rod by threads, and the lower limit plate is abutted against the nut.

[0014] An embodiment of the present application also provides a vibration reduction system, which includes any of the spring vibration reducers described above.

[0015] The beneficial effects of the present application are as follows: the spring damper and damping system provided by the present application, the spring damper is applied to the damping system, and includes a vertical damping assembly and a horizontal limit assembly; wherein the vertical damping assembly includes a spring, an upper limit structure and a lower limit structure, the lower limit structure is connected to the bottom plate, the upper limit structure is located on the side of the lower limit structure away from the bottom plate, and is arranged relatively spaced from the lower limit structure, and the upper limit structure is connected to the load, and the spring is vertically arranged between the upper limit structure and the lower limit structure; the horizontal limit assembly includes a fixed seat and a leaf spring, the fixed seat is connected to the bottom plate, and one end of the leaf spring is connected to the fixed seat, and the other end is connected to the upper limit structure and / or the lower limit structure, so that because the leaf spring has a small vertical stiffness and a large horizontal stiffness, it is possible to limit the horizontal upward movement of the vertical damping assembly by the leaf spring, so that the spring damper can have both a small vertical stiffness and a large horizontal stiffness, so as to achieve the purpose of improving the horizontal stability of the load, thereby improving the damping performance and structural stability of the spring damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the vibration reduction system provided in an embodiment of the present application; Figure 2 is a side structural schematic diagram of a vibration reduction system provided in an embodiment of the present application; Figure 3 is along Figure 2 A schematic diagram of the cross-sectional structure taken along the line AA' in FIG. Figure 4 is a schematic diagram of the three-dimensional structure of a spring shock absorber provided in an embodiment of the present application; Figure 5 is a schematic diagram of a top view of the spring damper provided in an embodiment of the present application; Figure 6 is along Figure 5 A schematic cross-sectional structure diagram taken along the line BB' in FIG. Figure 7 is along Figure 5 A schematic diagram of the cross-sectional structure taken along the line C-C' in FIG. Figure 8 yes Figure 6 Enlarged view of the structure within the middle circular dashed box; Reference numerals: 10-bottom plate; 20-load / top plate; 30-spring damper; 31-vertical vibration reduction assembly; 31A-upper limit structure; 31B-lower limit structure; 311-spring; 312-support rod; 313-upper limit plate; 314-lower limit plate; 315-first protrusion; 316-second protrusion; 317-installation slot; 317A-positioning hole; 318-nut; 32-horizontal limit assembly; 32A-hollow structure; 32B-fixed seat; 320-scale plate; 321-lower support seat; 322-upper support seat; 323-vertical floating plate; 324-leaf spring; 324A-first leaf spring; 324B-second leaf spring; 324C-third leaf spring; 324D-fourth leaf spring; 3241-opening; 325-leaf spring locking structure; 3251-leaf spring locking block; 3251A-base; 3251B-protrusion; 3252-leaf spring locking screw; 3253-through hole; 326-leaf spring slot; 3261-first groove; 3262-second groove; 3263-third groove; 33-connecting rod / flexible rod; 34-load transfer block. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limiting the present application. In addition, it should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0019] In the following description, a second component is connected to a first component, which may include an embodiment in which the second component is directly connected to the first component, and may also include an embodiment in which the second component is connected to the first component through an additional component so that the second component is not directly connected to the first component.

[0020] In the following description, the second component being connected to the first component may include an embodiment in which the second component is directly connected to the first component, and may also include an embodiment in which the second component is connected to the first component through an additional component so that the second component is not directly connected to the first component.

[0021] When describing the structure of a component, when a layer or a region is referred to as being "on" or "above" another layer or another region, it may mean being directly above the other layer or another region, or having other layers or regions between it and the other layer or another region. Also, if the component is turned over, the layer or the region will be "under" or "below" the other layer or another region. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0022] In addition, the directional terms mentioned in the embodiments of the present application, such as [up], [down], [front], [back], [left], [right], [inside], [outside], [side], etc., are only referenced to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the embodiments of the present application, rather than to limit the embodiments of the present application. In each of the accompanying drawings, units with similar structures are represented by the same figure numbers. For clarity, the various parts in the drawings are not drawn to scale. In addition, certain related parts may not be shown in the drawings.

[0023] Metal springs are known to be used in many vibration reduction systems for passive vibration reduction of important components, absorbing and filtering vibration shocks. Usually, three or more spring vibration reductions plus active control components, such as different numbers of voice coil motors arranged in horizontal and vertical directions, form an active vibration reduction system. Metal springs are commonly found in many forms, such as helical springs, leaf springs, etc. The above vibration reduction system generally has three or more helical springs in the vertical direction to provide effective support for the load and achieve effective vibration reduction function above the natural frequency of the system composed of the spring and the load.

[0024] In order to adapt to different load weights, the spring load-bearing capacity of the above-mentioned spring vibration reduction system needs to be adjustable within a certain range at the static initial position. In order to maintain the stability of the system, the vertical force needs to be evenly distributed, and no horizontal force or torque is introduced. This requires that the spring should not be twisted or tilted during the adjustment process to avoid the horizontal component causing horizontal load offset. In the active vibration reduction system, the horizontal offset of the load will cause uneven gaps between the voice coil motor mover and stator, affecting the performance difference of the voice coil motor.

[0025] Therefore, after the height of the above-mentioned spring active vibration reduction system is adjusted, the load must be adjusted horizontally as a whole, which is an extremely cumbersome process. In addition, during the operation of the vibration reduction system, it is usually hoped that the coil spring will only produce vertical deformation without horizontal tilting or twisting, so as to maintain the stability of the system structure, which is a great challenge to the structural design.

[0026] In view of the above problems, the embodiments of the present application provide a spring damper and a damping system, wherein the spring damper is applied to the damping system and comprises a vertical damping assembly and a horizontal limit assembly; wherein the vertical damping assembly comprises a spring, an upper limit structure and a lower limit structure, wherein the lower limit structure is connected to a base plate, the upper limit structure is located on a side of the lower limit structure away from the base plate, and is arranged with a relative interval with the lower limit structure, and the upper limit structure is connected to a load, and the spring is vertically arranged between the upper limit structure and the lower limit structure; the horizontal limit assembly comprises a fixed seat and a leaf spring, wherein the fixed seat is connected to the base plate, and one end of the leaf spring is connected to the fixed seat, and the other end is connected to the upper limit structure and / or the lower limit structure, so that since the leaf spring has a small vertical stiffness and a large horizontal stiffness, it is possible to limit the horizontal upward movement of the vertical damping assembly by means of the leaf spring, so that the spring damper can have both a small vertical stiffness and a large horizontal stiffness, so as to achieve the purpose of improving the horizontal stability of the load, thereby improving the damping performance and structural stability of the spring damper.

[0027] The following is a detailed description with reference to specific embodiments. It should be noted that the serial numbers of the following embodiments are not intended to limit the preferred order of the embodiments.

[0028] See also Figures 1 to 6 , Figure 1 is a schematic diagram of the three-dimensional structure of the vibration reduction system provided in the embodiment of the present application, Figure 2 is a side view structural diagram of the vibration reduction system provided in an embodiment of the present application, Figure 3 is along Figure 2 A schematic diagram of the cross-sectional structure taken along the line A-A' in FIG. Figure 4 is a schematic diagram of the three-dimensional structure of the spring shock absorber provided in the embodiment of the present application, Figure 5 is a schematic diagram of a top view of the spring damper provided in an embodiment of the present application, Figure 6 is along Figure 5The cross-sectional structure diagram taken along the line BB' in FIG. Figures 1 to 6 As shown, the vibration reduction system includes a base plate 10, a load 20 and a spring vibration reducer 30, wherein the spring vibration reducer 30 is fixed on the base plate 10, and the load 20 is flexibly supported by the spring vibration reducer 30, thereby forming a vibration reduction body to achieve vibration reduction of the load 20.

[0029] Specifically, the spring damper 30 may include a vertical damping assembly 31 and a horizontal limiting assembly 32, wherein the vertical damping assembly 31 is located between the base plate 10 and the load 20 and is used for vertical vibration reduction, and the horizontal limiting assembly 32 is located between the base plate 10 and the load 20 and is used to limit the horizontal upward movement of the vertical damping assembly 31 to improve the damping performance and structural stability of the spring damper 30.

[0030] Furthermore, it should be noted that the vertical direction in the embodiments of the present application (for example, the Z direction in the drawings) may refer to any direction perpendicular to the horizontal plane (for example, a plane parallel to the X direction and the Y direction in the drawings), and the horizontal direction in the embodiments of the present application (for example, the X direction or the Y direction in the drawings) may refer to any direction parallel to the horizontal plane.

[0031] Specifically, the vertical vibration reduction assembly 31 may include a spring 311, an upper limit structure 31A and a lower limit structure 31B. The lower limit structure 31B is connected to the base plate 10. The upper limit structure 31A is located on the side of the lower limit structure 31B away from the base plate 10, and is arranged relatively spaced from the lower limit structure 31B, and the upper limit structure 31A is connected to the load 20, and the load 20 can be arranged on the side of the upper limit structure 31A away from the lower limit structure 31B. The spring 311 is vertically arranged between the upper limit structure 31A and the lower limit structure 31B.

[0032] Specifically, the horizontal limiting assembly 32 may include a fixing seat 32B and a leaf spring 324, wherein the fixing seat 32B may be connected to the bottom plate 10, and one end of the leaf spring 324 may be connected to the fixing seat 32B, and the other end may be connected to the upper limiting structure 31A and / or the lower limiting structure 31B. In this way, since the leaf spring 324 has a small vertical stiffness and a large horizontal stiffness, the leaf spring 324 can be used to limit the horizontal movement of the vertical damping assembly 31, so that the spring damper 30 can have both a small vertical stiffness and a large horizontal stiffness, so as to achieve the purpose of improving the horizontal stability of the load 20, thereby improving the damping performance and structural stability of the spring damper 30.

[0033] Furthermore, during the use of the spring damper 30 , the leaf spring 324 can be replaced according to actual needs to achieve the purpose of changing the stiffness.

[0034] Specifically, the height of the lower limit structure 31B relative to the bottom plate 10 can be adjustable, so that the distance between the upper limit structure 31A and the lower limit structure 31B can be adjusted by adjusting the height of the lower limit structure 31B relative to the bottom plate 10, so as to achieve the purpose of adjusting the deformation degree of the spring 311, so that the bearing capacity of the spring 311 in the static initial position is adjustable within a certain range, so that the spring shock absorber 30 can adapt to different weights of the load 20, and in the process of adjusting the deformation degree of the spring 311, the horizontal limit component 32 in the spring shock absorber 30 can reduce the torsion or tilt of the spring 311 to avoid the horizontal movement of the spring 311 causing the load 20 to shift horizontally, so that after adjusting the deformation degree of the spring 311, there is no need to adjust the load 20 as a whole in the horizontal direction, thereby improving the vibration reduction performance and structural stability of the spring shock absorber 30.

[0035] In the above-mentioned spring damper 30, the fixed seat 32B may include a lower support seat 321 and an upper support seat 322, wherein the upper support seat 322 is connected to the base plate 10 through the lower support seat 321. The horizontal limit assembly 32 may also include a vertical floating plate 323, and the vertical floating plate 323 and the upper support seat 322 are arranged horizontally with relative spacing. The leaf spring 324 may be arranged parallel to the horizontal plane. The opposite ends of the leaf spring 324 along its length direction may be connected to the upper support seat 322 and the vertical floating plate 323 respectively, and the upper limit structure 31A and / or the lower limit structure 31B may be connected to the vertical floating plate 323, so that one end of the leaf spring 324 can be connected to the fixed seat 32B through the upper support seat 322, and the other end of the leaf spring 324 can be connected to the upper limit structure 31A and / or the lower limit structure 31B through the vertical floating plate 323.

[0036] Specifically, the number of leaf springs 324 included in the above-mentioned horizontal limit assembly 32 can be multiple, and each of the multiple leaf springs 324 is respectively connected to the upper support seat 322 and the vertical floating plate 323 at two opposite ends along its length direction, so that the vertical floating plate 323 and the upper support seat 322 are connected together through the above-mentioned multiple leaf springs 324 to form a hollow structure 32A with openings at both ends along the vertical direction, thereby realizing that the upper support seat 322, the vertical floating plate 323 and the above-mentioned multiple leaf springs 324 jointly form a cantilever structure.

[0037] Furthermore, the upper limit structure 31A of the vertical vibration damping assembly 31 can be connected to the vertical floating plate 323, and the spring 311 of the vertical vibration damping assembly 31 can be at least partially accommodated in the hollow structure 32A, so that not only the gravity of the load 20 can be transmitted to the upper limit structure 31A, but also the horizontal upward movement of the vertical vibration damping assembly 31 can be limited by the horizontal limit assembly 32. Therefore, in the process of using the spring damper 30 to damp the load 20, after the load 20 is installed, the gravity of the load 20 can be balanced by the spring 311 and the leaf spring 324, and in the static state, the spring 311 can be adjusted vertically and stopped horizontally, and in the working state, the spring 311 is only subjected to vertical force, and has no horizontal force component, so that the spring damper 30 achieves a greater horizontal stiffness while achieving a smaller vertical stiffness, thereby making the horizontal stability of the load 20 better, offsetting the adverse effects caused by the non-axial deformation of part of the spring 311 itself. In addition, the spring damper 30 has a large operating space for height adjustment, a wide adjustment range, and a fast adjustment speed.

[0038] It should be noted that the cantilever structure composed of the upper support seat 322, the vertical floating plate 323 and the above-mentioned multiple leaf springs 324 in this embodiment can achieve extremely low vertical stiffness and extremely large horizontal stiffness in the case of very small vertical displacement, for example, it can be designed to be more than 20 times larger than the vertical stiffness. This makes the buoy formed by the upper limit structure 31A and the vertical floating plate 323 approximately parallel in the vertical direction and approximately zero in the horizontal displacement in the case of very small displacement, so the buoy has extremely high stability in the horizontal direction and can resist the horizontal force component caused by the spring 311 itself due to its own tilt or torsion to a large extent.

[0039] For example, in the horizontal limiting assembly 32, the leaf spring 324 may be made of an elastic material, and when it is deformed by a small amplitude, its stiffness in the thickness direction is much smaller than its stiffness in the length direction (for example, it may be more than 20 times smaller).

[0040] For example, Figures 1 to 6 As shown, in the vertical vibration reduction assembly 31, the lower support seat 321 and the upper support seat 322 can be stacked on the bottom plate 10 in sequence, and the lower side of the lower support seat 321 can be fixed to the bottom plate 10 by screws, and the lower side of the upper support seat 322 can be connected to the upper side of the upper support seat 322 by screws, or the upper support seat 322 and the lower support seat 321 can also be an integrally formed structure. The spring 311 can be specifically a coil spring 311.

[0041] For example, Figures 1 to 6As shown, in the spring shock absorber 30, the upper limit structure 31A of the vertical vibration damping assembly 31 may include an upper limit plate 313, which may be arranged parallel to the horizontal plane, and one end of the upper limit plate 313 along the horizontal direction may be vertically fixedly connected to the end of the vertical floating plate 323 of the horizontal limiting assembly 32 away from the bottom plate 10 (i.e., the upper end), for example, they may be vertically connected into an integrally formed structure, and the other end of the upper limit plate 313 along the horizontal direction is close to the upper support seat 322 of the horizontal limiting assembly 32, and is a suspended free end.

[0042] Exemplarily, the base plate 10 may be a frame placed on the ground. Also, it is understood that the ground may be used as the base plate 10, that is, the spring damper 30 may be directly fixedly connected to the ground.

[0043] For example, Figures 1 to 3 As shown, the load 20 may be specifically a top plate 20. Furthermore, when the spring damper 30 is used to dampen the vibration of the damped device, the top plate 20 and the damped device may be connected and flexibly supported by the spring damper 30, thereby forming a damping body to achieve vibration damping of the damped device.

[0044] In some embodiments, Figures 1 to 6 As shown, in the vertical vibration reduction assembly 31, the lower limit structure 31A may include a lower limit plate 314 and a support rod 312. The lower limit plate 314 and the upper limit plate 313 are arranged vertically with relative spacing, and the spring 311 is vertically arranged between the lower limit plate 314 and the upper limit plate 313. The support rod 312 may be arranged vertically, that is, the length direction of the support rod 312 may be perpendicular to the horizontal plane, and one end (i.e., the lower end) of the support rod 312 along its length direction may be fixedly connected to the bottom plate 10, the lower limit plate 314 may be arranged on the support rod 312, and the height of the lower limit plate 314 relative to the bottom plate 10 may be adjustable.

[0045] In some specific embodiments, Figure 4 As shown, the spring damper 30 may also include a scale plate 320 , on which scale plate 320 may be provided scales for indicating the height of the lower limit plate 314 relative to the base plate 10 , thereby facilitating improving the efficiency and accuracy of height adjustment of the lower limit plate 314 .

[0046] Specifically, Figure 4 As shown, the scale plate 320 can be arranged vertically to the horizontal plane, and can be fixed on the surface of the lower support seat 321 and / or the upper support seat 322 facing the vertical vibration reduction assembly 31.

[0047] In some specific embodiments, Figures 1 to 6As shown, in the vertical vibration damping assembly 31 , the position of the lower limit plate 314 on the support rod 312 is adjustable, so that the height of the lower limit plate 314 relative to the base plate 10 can be adjusted by adjusting the position of the lower limit plate 314 on the support rod 312 .

[0048] Specifically, Figure 6 As shown, the vertical vibration damping assembly 31 may also include a nut 318, which is located between the lower limit plate 314 and the base plate 10 and can be threadedly connected to the support rod 312, and the lower limit plate 314 and the nut 318 can be abutted against each other, so that by rotating the nut 318, the lower limit plate 314 can follow the nut 318 and move up and down synchronously along the length direction of the support rod 312 to compress or release the spring 311, thereby realizing vertical height adjustment without introducing load horizontal offset.

[0049] For example, Figure 6 As shown, the support rod 312 can be a screw rod 312, and the screw rod 312 is adapted to the nut 318. Specifically, the lower end of the screw rod 312 can be connected to the corresponding threaded hole on the bottom plate 10 by threading, or can be clamped in the corresponding positioning hole on the bottom plate 10, so as to achieve a fixed connection between the screw rod 312 and the bottom plate 10.

[0050] In other specific embodiments, Figures 1 to 6 As shown, in the vertical vibration damping assembly 31, the length of the support rod 312 between the base plate 10 and the lower limit plate 314 is adjustable, so that the height of the lower limit plate 314 relative to the base plate 10 can be adjusted by adjusting the length of the support rod 312 between the base plate 10 and the lower limit plate 314.

[0051] Specifically, the support rod 312 can be a telescopic rod, and the two opposite ends of the telescopic rod can be fixedly connected to the lower limit plate 314 and the bottom plate 10 respectively, and the length of the telescopic rod is adjustable, so that the spacing distance between the lower limit plate 314 and the bottom plate 10 can be adjusted.

[0052] In some embodiments, Figures 1 to 6 As shown, the spring damper 30 may further include a horizontal damping assembly 33, which is located between the base plate 10 and the load 20 and is used for horizontal upward vibration reduction, so that the spring damper 30 has both vertical and horizontal upward vibration reduction functions.

[0053] Specifically, Figures 1 to 6As shown, the horizontal vibration reduction component 33 can be a connecting rod 33, the connecting rod 33 can be arranged vertically, and the opposite ends (i.e., the upper end and the lower end) of the connecting rod 33 can be connected to the load 20 and the upper limit structure 31A (for example, the upper limit plate 313), so that the upper limit structure 31A is connected to the load 20 through the connecting rod 33, and the lower end of the connecting rod 33 is fixed to the upper limit structure 31A, and the upper end of the connecting rod 33 can drive the load 20 to swing horizontally within a certain range, so as to achieve the purpose of horizontal vibration reduction of the load 20.

[0054] In some specific embodiments, Figures 1 to 6 As shown, the spring damper 30 may further include a load transfer block 34 , which is connected to the load 20 , and the upper end of the connecting rod 33 may be connected to the load transfer block 34 , so that the load transfer block 34 connects the connecting rod 33 to the load 20 .

[0055] Exemplarily, the connecting rod 33 may be specifically a flexible rod 33 .

[0056] For example, the connecting rod 33 may be made of an elastic material, which may be elastically deformed when subjected to horizontal force, thereby achieving horizontal upward vibration reduction of the load 20 .

[0057] In some embodiments, Figure 6 As shown, the upper limit plate 313 may have a first surface (i.e., an upper surface) facing away from the lower limit structure 31B (e.g., the lower limit plate 314) and a second surface (i.e., a lower surface) facing the lower limit structure 31B (e.g., the lower limit plate 314). Specifically, the upper limit structure 31A may also include a first protrusion 315, which may be disposed on the middle area of ​​the second surface of the upper limit plate 313, and one end (i.e., the upper end) of the spring 311 may be sleeved on the first protrusion 315 and abut against the second surface of the upper limit plate 313, thereby realizing the positioning of the upper end of the spring 311 by the upper limit structure 31A.

[0058] Specifically, Figure 6 As shown, the lower limit plate 314 may have a first surface (i.e., a lower surface) that is away from the upper limit structure 31A (e.g., the upper limit plate 313) and a second surface (i.e., an upper surface) that is toward the upper limit structure 31A (e.g., the upper limit plate 313). Specifically, the lower limit structure 31B may also include a second protrusion 316, which may be disposed on the middle area of ​​the second surface of the lower limit plate 314. Furthermore, the opposite ends (i.e., the upper end and the lower end) of the spring 311 in the vertical direction may be respectively sleeved on the first protrusion 315 and the second protrusion 316, and respectively abut against the second surface of the upper limit plate 313 and the second surface of the lower limit plate 314, thereby positioning the spring 311 between the upper limit structure 31A and the lower limit structure 31B.

[0059] In some specific embodiments, Figure 6 As shown, in the vertical vibration damping assembly 31, a through hole may be provided on the middle area of ​​the second surface (i.e., the lower surface) of the lower limit plate 314, and the through hole passes through the lower limit plate 314 and the second protrusion 316. In addition, one end (i.e., the lower end) of the support rod 312 along its length direction may be fixedly connected to the bottom plate 10, and the other end (i.e., the upper end) may pass through the through hole and extend into the area between the lower limit plate 314 and the upper limit plate 313, and the lower end of the spring 311 may be sleeved on the support rod 312 extending into the area, so that the support rod 312 passes through the lower limit plate 314 and the second protrusion 316 and supports the spring 311.

[0060] Furthermore, in the above-mentioned embodiment where the spring damper 30 further includes a connecting rod 33, as Figure 6 As shown, a mounting groove 317 may be provided on the middle area of ​​the first surface (i.e., the upper surface) of the upper limit plate 313, and the mounting groove 317 may penetrate to the first protrusion 315, for example, may penetrate the upper limit structure 313 and part of the first protrusion 315. In addition, in the spring damper 30, one end (i.e., the upper end) of the connecting rod 33 along its length direction may be connected to the load 20 through the load transfer block 34, and the other end (i.e., the lower end) of the connecting rod 33 along its length direction may extend into the mounting groove 317 and be connected to the mounting groove 317, for example, may be specifically connected to the middle area of ​​the bottom wall of the mounting groove 317.

[0061] Specifically, Figure 6 As shown, the opening width of the mounting groove 317 may be greater than the width of the connecting rod 33, so that the portion of the connecting rod 33 extending into the mounting groove 317 can swing horizontally, thereby improving the horizontal vibration reduction effect of the connecting rod 33.

[0062] For example, Figure 6 As shown, a positioning hole 317A may be opened in the middle area of ​​the bottom wall of the installation groove 317, and the installation groove 317 is tightly matched with the lower end of the connecting rod 33 to achieve coupling between the lower end of the connecting rod 33 and the vertical vibration reduction assembly 31.

[0063] In this way, after the load 20 is installed, the spring 311 can be compressed by lifting the lower limit plate 314 (or the lower limit structure 31B), and after lifting to a suitable height, the gravity of the load 20 can be balanced by the compression reaction force of the spring 311, and then the height of the lower limit plate 314 relative to the base plate 10 can be further fine-tuned to make the load 20 reach the designed working height. After that, the vertical vibration of the base plate 10 is mainly transmitted to the load 20 through the support rod 312, the lower limit plate 314, the spring 311, the buoy (that is, the structure formed by connecting the upper limit structure 31A and the vertical buoy 323), the connecting rod 33, and the load transfer block 34. At this time, the spring 311 plays a major role in vibration isolation; and the horizontal vibration of the base plate 10 is transmitted to the load 20 through the upper support seat 322, the leaf spring 311, the buoy, the connecting rod 33 and the load transfer block 34. At this time, the connecting rod 33 plays a major role in vibration isolation.

[0064] In the above embodiment, if Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the horizontal limit assembly 32 may further include a plurality of leaf spring locking structures 325, and a plurality of leaf spring slots 326 may be respectively provided on the upper support seat 322 and the vertical floating plate 323. One end of each leaf spring 324 along its length direction may be connected to the corresponding leaf spring slot 326 on the upper support seat 322 through its corresponding leaf spring locking structure 325, and the other end of each leaf spring 324 along its length direction may be connected to the corresponding leaf spring slot 326 on the vertical floating plate 323 through its corresponding leaf spring locking structure 325. Furthermore, for each leaf spring 324, the leaf spring locking structure 325 corresponding to the leaf spring 324 can be configured to prevent the leaf spring 324 from moving along the length direction of the leaf spring 324, and the leaf spring slot 326 corresponding to the leaf spring 324 can be configured to prevent the leaf spring 324 from moving along the width direction of the leaf spring 324, thereby achieving the leaf spring 324 being stuck in its corresponding leaf spring slot 326 in the width direction of the leaf spring 324 to prevent the leaf spring 324 from shaking left and right, and achieving the leaf spring 324 being blocked by its corresponding leaf spring locking structure 325 in the length direction of the leaf spring 324, thereby achieving precise positioning of the leaf spring 324.

[0065] Specifically, each leaf spring 324 may have two corresponding leaf spring locking structures 325 in the above-mentioned plurality of leaf spring locking structures 325, which are recorded as the first leaf spring locking structure and the second leaf spring locking structure. Each leaf spring 324 may have a corresponding leaf spring clamping groove 326 on the upper support seat 322, which is recorded as the first leaf spring clamping groove. Each leaf spring 324 may have a corresponding leaf spring clamping groove on the vertical floating plate 323, which is recorded as the second leaf spring clamping groove.

[0066] Furthermore, for each leaf spring 324, one end of the leaf spring 324 along the length direction of the leaf spring 324 can be connected to the corresponding first leaf spring slot on the upper support seat 322 through the first leaf spring locking structure corresponding to the leaf spring 324, and the other end of the leaf spring 324 along its length direction can be connected to the corresponding second leaf spring slot on the vertical floating plate 323 through the second leaf spring locking structure corresponding to the leaf spring 324, and the first leaf spring locking structure and the second leaf spring locking structure corresponding to the leaf spring 324 can prevent the leaf spring 324 from moving along the length direction of the leaf spring 324, and the first leaf spring slot and the second leaf spring slot corresponding to the leaf spring 324 can prevent the leaf spring 324 from moving along the width direction of the leaf spring 324.

[0067] In some specific embodiments, Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, each leaf spring 324 may be provided with openings 3241 at both ends along its length direction, which are denoted as a first opening and a second opening. In addition, the leaf spring slot 326 may include a first groove 3261, a second groove 3262 provided on the middle area of ​​the bottom wall surface of the first groove 3261, and a third groove 3263 provided on the middle area of ​​the bottom wall surface of the second groove 3262.

[0068] Specifically, the leaf spring locking structure 325 may include a leaf spring locking block 3251 and a leaf spring locking screw 3252. The leaf spring locking block 3251 may include a base 3251A and a protrusion 3251B, and the base 3251A has a first surface and a second surface opposite to each other, the protrusion 3251B may be arranged on the middle area of ​​the first surface of the base 3251A, and the leaf spring locking block 3251 may be provided with a through hole 3253 penetrating the base 3251A and the protrusion 3251B, the through hole 3253 is adapted to the leaf spring locking screw 3252, and may be located in the middle position of the leaf spring locking block 3251, so as to realize the leaf spring locking screw 3252 being locked by the center of the leaf spring locking block 3251.

[0069] For example, Figure 8 As shown, in the leaf spring locking structure 325, the base 3251A and the protrusion 3251B in the leaf spring locking block 3251 can be an integrally formed structure. Figure 8 As shown, the leaf spring locking block 3251 can be in a T-shaped structure, and, as shown in FIG. Figure 8As shown, for the leaf spring 324 and its corresponding leaf spring locking structure 325 and leaf spring slot 326, the first surface of the base 3251A in the leaf spring locking structure 325 can be arranged toward the bottom wall surface of the first groove 3261 in the leaf spring slot 326, the leaf spring 324 can be arranged between the first surface of the base 3251A in the leaf spring locking structure 325 and the bottom wall surface of the first groove 3261 in the leaf spring slot 326, the protrusion 3251B in the leaf spring locking structure 325 can be arranged toward the bottom wall surface of the second groove 3262, and extend into the second groove 3262 through the corresponding opening 3241 on the leaf spring 324, and the leaf spring locking screw 3252 in the leaf spring locking structure 325 can pass through the leaf spring locking structure 325. 25, the through hole 3253 on the leaf spring locking block 3251 extends into the third groove 3263 and is connected to the third groove 3263, for example, it can be specifically connected to the middle area of ​​the bottom wall of the third groove 3263, so that the leaf spring 324 is fixed to its corresponding leaf spring slot 326 through its corresponding leaf spring locking structure 325, and in the process of fixing the leaf spring 324, after tightening the leaf spring locking screw 3252, the leaf spring locking block 3251 can press the leaf spring 324, and because the contact area between the leaf spring locking block 3251 and the leaf spring 324 is large, this helps to make the pressure around the opening 3241 on the leaf spring 324 more evenly dispersed, thereby effectively avoiding stress concentration and causing cracks in the leaf spring 324.

[0070] For example, Figure 8 As shown, for the leaf spring 324 and its corresponding leaf spring locking structure 325 and leaf spring slot 326, the opening width of the first groove 3261 in the leaf spring slot 326 along the width direction of the leaf spring 324 can be adapted to the width of the leaf spring 324, so that the first groove 3261 in the leaf spring slot 326 prevents the leaf spring 324 from moving along the width direction of the leaf spring 324.

[0071] For example, Figure 8 As shown, for the leaf spring 324 and its corresponding leaf spring locking structure 325 and leaf spring slot 326, the size of the raised portion 3251B of the leaf spring locking block 3251 in the leaf spring locking structure 325 along the length direction of the leaf spring 324 can be adapted to the width of the open leaf spring 3241 on the leaf spring 324 along the length direction of the leaf spring 324, and the opening width of the second groove 3262 in the leaf spring slot 326 along the length direction of the leaf spring 324 can be adapted to the size of the raised portion 3251B of the leaf spring locking block 3251 in the leaf spring locking structure 325 along the length direction of the leaf spring 324, so as to achieve the situation that the raised portion 3251B of the leaf spring locking block 3251 in the leaf spring locking structure 325 prevents the leaf spring 324 from moving along the length direction of the leaf spring 324.

[0072] For example, Figure 8As shown, for the leaf spring 324 and its corresponding leaf spring locking structure 325 and leaf spring slot 326, the length of the protrusion 3251B of the leaf spring locking block 3251 in the leaf spring locking structure 325 extending into the second groove 3262 in the leaf spring slot 326 can be smaller than the depth of the second groove 3262 in the leaf spring slot 326, so as to ensure that the protrusion 3251B of the leaf spring locking block 3251 in the leaf spring locking structure 325 does not contact the upper support seat 322 and the vertical floating plate 323, thereby ensuring its fixing effect on the leaf spring 324.

[0073] In the above embodiment, if Figures 1 to 7 As shown, the upper support seat 322 may have a first surface (i.e., the lower surface) facing the bottom plate 10 and a second surface (i.e., the upper surface) facing away from the bottom plate 10, the vertical floating plate 323 may have a first surface (i.e., the lower surface) facing the bottom plate 10 and a second surface (i.e., the upper surface) facing away from the bottom plate 10, and the horizontal limit assembly 32 may include four leaf springs 324, which are denoted as a first leaf spring 324A, a second leaf spring 324B, a third leaf spring 324C and a fourth leaf spring 324D (as shown in FIG. Figure 7 as shown).

[0074] Among them, the first leaf spring 324A and the second leaf spring 324B can be arranged with relative intervals in the horizontal direction, and one end of the first leaf spring 324A along its length direction and one end of the second leaf spring 324B along its length direction can be respectively connected to the opposite side edge areas of the lower surface of the upper support seat 322, and the other end of the first leaf spring 324A along its length direction and the other end of the second leaf spring 324B along its length direction can be respectively connected to the opposite side edge areas of the lower surface of the vertical floating plate 323.

[0075] The third leaf spring 324C and the fourth leaf spring 324D can be arranged with relative intervals in the horizontal direction, and one end of the third leaf spring 324C along its length direction and one end of the fourth leaf spring 324D along its length direction are respectively connected to the opposite side edge areas of the upper surface of the upper support seat 322, and the other end of the third leaf spring 324C along its length direction and the other end of the fourth leaf spring 324D along its length direction can be respectively connected to the opposite side edge areas of the upper surface of the vertical floating plate 323.

[0076] In some specific embodiments, Figures 1 to 7As shown, the upper support seat 322 and the vertical floating plate 323 can be rectangular plate structures, and the first leaf spring 324A and the third leaf spring 324C can be arranged with relative intervals in the vertical direction, and the second leaf spring 324B and the fourth leaf spring 324D can be arranged with relative intervals in the vertical direction, so that the upper support seat 322 and the vertical floating plate 323 can be connected by the first leaf spring 324A, the second leaf spring 324B, the third leaf spring 324C and the fourth leaf spring 324D to form a hexahedral frame structure (that is, the above-mentioned hollow structure 32A), and by reasonably arranging the relative position relationship and connection direction between the upper support seat 322, the vertical floating plate 323 and the four leaf springs 324A / 324B / 324C / 324D, it helps to improve the vibration reduction performance of the spring damper 30 in the horizontal direction.

[0077] As can be seen from the above, the spring damper provided in this embodiment includes a vertical damping component and a horizontal limit component; wherein the vertical damping component includes a spring, an upper limit structure and a lower limit structure, the lower limit structure is connected to the base plate, the upper limit structure is located on the side of the lower limit structure away from the base plate, and is arranged relative to the lower limit structure, and the upper limit structure is connected to the load, and the spring is vertically arranged between the upper limit structure and the lower limit structure; the horizontal limit component includes a fixed seat and a leaf spring, the fixed seat is connected to the base plate, and one end of the leaf spring is connected to the fixed seat, and the other end is connected to the upper limit structure and / or the lower limit structure. In this way, since the vertical stiffness of the leaf spring is small and the horizontal stiffness is large, it is possible to limit the horizontal upward movement of the vertical damping component by the leaf spring, so that the spring damper can have both small vertical stiffness and large horizontal stiffness, so as to achieve the purpose of improving the horizontal stability of the load, thereby improving the damping performance and structural stability of the spring damper.

[0078] An embodiment of the present application further provides a vibration reduction system, which includes the spring vibration reduction device of any one of the above embodiments.

[0079] Specifically, Figures 1 to 3 As shown, the vibration reduction system may include a base plate 10, a load 20 and a spring vibration reducer 30 of any of the above-mentioned embodiments, wherein the spring vibration reducer 30 is fixed on the base plate 10, and the load 20 is flexibly supported by the spring vibration reducer 30, thereby forming a vibration reduction body to achieve vibration reduction of the load 20.

[0080] The base plate 10 may be a frame placed on the ground. Also, it is understandable that the ground may be used as the base plate 10, that is, the spring damper 30 may be directly fixedly connected to the ground.

[0081] In some embodiments, Figures 1 to 3 As shown, the vibration reduction system may include multiple spring dampers 30 , for example, four spring dampers 30 , and the four spring dampers 30 may be fixed at four corners of the base plate 10 , respectively.

[0082] In some embodiments, Figures 1 to 3 As shown, the load 20 may be specifically a top plate 20. Furthermore, when the spring damper 30 is used to dampen the vibration of a damped device (e.g., a semiconductor device, a precision machine tool, or other precision device), the top plate 20 and the damped device may be connected and flexibly supported by the spring damper 30, thereby forming a damping body to achieve vibration damping of the damped device.

[0083] In some embodiments, the vibration reduction system may also be an active vibration reduction system. Accordingly, the vibration reduction system may also include a motor assembly (e.g., a bidirectional voice coil motor drive assembly), a sensor assembly, and a controller. The mover of the motor assembly may be fixed to the load 20, and the stator may be fixed to the base plate 10 via an adapter. The sensor assembly may be fixed to the load 20 and used to detect the movement of the load 20. The controller may control the operation of the motor assembly according to the detection result of the sensor assembly.

[0084] It should be noted that the vibration reduction system provided in the embodiment of the present application, since the spring vibration reduction device provided in the embodiment of the present application is provided, can achieve the beneficial effects that can be achieved by any spring vibration reduction device provided in the embodiment of the present application. Please refer to the previous embodiments for details, which will not be repeated here.

[0085] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A spring damper, characterized in that: include: A vertical vibration reduction assembly, comprising a spring, an upper limit structure and a lower limit structure, wherein the lower limit structure is connected to a bottom plate, the upper limit structure is located on a side of the lower limit structure away from the bottom plate and is arranged relatively spaced from the lower limit structure, and the upper limit structure is connected to a load, and the spring is vertically arranged between the upper limit structure and the lower limit structure; The horizontal limit assembly comprises a fixing seat and a leaf spring, wherein the fixing seat is connected to the base plate, and one end of the leaf spring is connected to the fixing seat, and the other end is connected to the upper limit structure and / or the lower limit structure.

2. The spring damper according to claim 1, characterized in that: The fixing seat comprises a lower supporting seat and an upper supporting seat, wherein the upper supporting seat is connected to the bottom plate through the lower supporting seat; The horizontal limit assembly also includes a vertical floating plate, which is arranged relative to the upper support seat in the horizontal direction, and the leaf spring is arranged parallel to the horizontal plane. There are multiple leaf springs, and each of the multiple leaf springs is respectively connected to the upper support seat and the vertical floating plate at two opposite ends along its length direction, so that the vertical floating plate and the upper support seat are connected together through the multiple leaf springs to form a hollow structure with openings at both ends along the vertical direction, and the upper limit structure and / or the lower limit structure of the vertical vibration damping assembly are connected to the vertical floating plate, and the spring of the vertical vibration damping assembly is at least partially accommodated in the hollow structure.

3. The spring damper according to claim 2, characterized in that: The horizontal limit assembly also includes a plurality of leaf spring locking structures, and the upper support seat and the vertical floating plate are respectively provided with a plurality of leaf spring clamping grooves; One end of the leaf spring along its length direction is connected to the corresponding leaf spring slot on the upper support seat through the corresponding leaf spring locking structure, and the other end of the leaf spring along its length direction is connected to the corresponding leaf spring slot on the vertical floating plate through the corresponding leaf spring locking structure. The leaf spring locking structure corresponding to the leaf spring is configured to prevent the leaf spring from moving along its length direction, and the leaf spring locking groove corresponding to the leaf spring is configured to prevent the leaf spring from moving along its width direction.

4. The spring damper according to claim 3, characterized in that: The leaf spring is provided with openings at both ends along its length direction; The leaf spring slot includes a first groove, a second groove provided on the middle area of ​​the bottom wall of the first groove, and a third groove provided on the middle area of ​​the bottom wall of the second groove; The leaf spring locking structure comprises a leaf spring locking block and a leaf spring locking screw, wherein the leaf spring locking block comprises a base and a protrusion, the base has a first surface and a second surface opposite to each other, the protrusion is arranged on the middle area of ​​the first surface of the base, and the leaf spring locking block is provided with a through hole penetrating the base and the protrusion, The first surface of the base is arranged toward the bottom wall of the first groove, the leaf spring is arranged between the first surface of the base and the bottom wall of the first groove, the protrusion is arranged toward the bottom wall of the second groove and extends into the second groove through the opening, and the leaf spring locking screw extends into the third groove through the through hole and is connected to the bottom wall of the third groove.

5. The spring damper according to claim 4, characterized in that: The length of the protrusion extending into the second groove is smaller than the depth of the second groove.

6. The spring damper according to claim 2, characterized in that: The upper support seat has a first surface facing the bottom plate and a second surface away from the bottom plate, the vertical floating plate has a first surface facing the bottom plate and a second surface away from the bottom plate, and the horizontal limit assembly includes a first leaf spring, a second leaf spring, a third leaf spring and a fourth leaf spring; Wherein, the first leaf spring and the second leaf spring are arranged with relative spacing in the horizontal direction, and one end of the first leaf spring along its length direction and one end of the second leaf spring along its length direction are respectively connected to the edge areas of the first surface of the upper support seat on both sides, and the other end of the first leaf spring along its length direction and the other end of the second leaf spring along its length direction are respectively connected to the edge areas of the first surface of the vertical floating plate on both sides; The third leaf spring and the fourth leaf spring are arranged with relative intervals in the horizontal direction, and one end of the third leaf spring along its length direction and one end of the fourth leaf spring along its length direction are respectively connected to the opposite side edge areas of the second surface of the upper support seat, and the other end of the third leaf spring along its length direction and the other end of the fourth leaf spring along its length direction are respectively connected to the opposite side edge areas of the second surface of the vertical floating plate.

7. The spring damper according to claim 1, characterized in that: The spring damper also includes: A connecting rod and a load transfer block, wherein the connecting rod is arranged vertically, and opposite ends of the connecting rod are respectively connected to the load transfer block and the upper limit structure, and the load transfer block is connected to the load.

8. The spring damper according to claim 7, characterized in that: The upper limit structure comprises an upper limit plate and a first protrusion, wherein the upper limit plate has a first surface away from the lower limit structure and a second surface facing the lower limit structure, the first protrusion is arranged on the middle area of ​​the second surface of the upper limit plate, one end of the spring is sleeved on the first protrusion and abuts against the second surface of the upper limit plate; A mounting groove is provided in the middle area of ​​the first surface of the upper limit plate, the opening width of the mounting groove is greater than the width of the connecting rod, and one end of the connecting rod is connected to the load through the load transfer block, and the other end of the connecting rod extends into the mounting groove and is connected to the middle area of ​​the bottom wall of the mounting groove.

9. The spring damper according to claim 1, characterized in that: The lower limit structure comprises a lower limit plate and a support rod, wherein the support rod is arranged vertically, and one end of the support rod is fixedly connected to the bottom plate, the lower limit plate is arranged on the support rod, and the position of the lower limit plate on the support rod is adjustable; The vertical vibration reduction assembly also includes a nut, which is located between the lower limit plate and the bottom plate and is connected to the support rod through threads, and the lower limit plate abuts against the nut.

10. A vibration reduction system, characterized in that: A spring damper comprising the spring damper according to any one of claims 1 to 9.

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