Spring shock absorber and shock absorption system

Abstract

The present application relates to a spring damper and a damping system, belonging to the field of precision damping technology, the spring damper comprises: a vertical damping assembly, comprising a spring, an upper limit structure and a lower limit structure, the lower limit structure being connected to a base plate, the upper limit structure being located on a side of the lower limit structure away from the base plate, and being arranged with a relative interval with the lower limit structure, and the upper limit structure being connected to a load, the spring being vertically arranged between the upper limit structure and the lower limit structure; a horizontal limit assembly, comprising a fixed seat and a leaf spring, the fixed seat being connected to the base plate, and one end of the leaf spring being connected to the fixed seat, and the other end being connected to the upper limit structure and / or the lower limit structure, in this way, 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 and enhance the damping performance of the spring damper.

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 limiting component further 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 in 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 in 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 in its length direction, and the leaf spring slot corresponding to the leaf spring is configured to prevent the leaf spring from moving in its width direction.

[0008] Among them, openings are provided at both ends of the leaf spring in its length direction; the leaf spring slot includes a first groove, a second groove provided in the middle region of the bottom wall surface of the first groove, and a third groove provided in the middle region of the bottom wall surface of the second groove; the leaf spring locking structure includes a leaf spring locking block and a leaf spring locking screw. Among them, the leaf spring locking block includes a base and a protruding portion. The base has opposite first and second surfaces. The protruding portion is provided in the middle region of the first surface of the base. A through hole penetrating the base and the protruding portion is provided on the leaf spring locking block, and the first surface of the base faces the bottom wall surface of the first groove. The leaf spring is provided between the first surface of the base and the bottom wall surface of the first groove. The protruding portion faces the bottom wall surface of the second groove and extends through the opening into the second groove. The leaf spring locking screw passes through the through hole and extends into the third groove, and is connected to the bottom wall surface of the third groove.

[0009] Among them, the length of the protruding portion extending into the second groove is less than the depth of the second groove.

[0010] Among them, 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 component includes a first leaf spring, a second leaf spring, a third leaf spring, and a fourth leaf spring; among them, the first leaf spring and the second leaf spring are arranged at intervals relative to each other in the horizontal direction, and one end of the first leaf spring in its length direction and one end of the second leaf spring in its length direction are respectively connected to the opposite two side edge regions of the first surface of the upper support seat, and the other end of the first leaf spring in its length direction and the other end of the second leaf spring in its length direction are respectively connected to the opposite two side edge regions of the first surface of the vertical floating plate; the third leaf spring and the fourth leaf spring are arranged at intervals relative to each other in the horizontal direction, and one end of the third leaf spring in its length direction and one end of the fourth leaf spring in its length direction are respectively connected to the opposite two side edge regions of the second surface of the upper support seat, and the other end of the third leaf spring in its length direction and the other end of the fourth leaf spring in its length direction are respectively connected to the opposite two side edge regions of the second surface of the vertical floating plate.

[0011] Among them, the spring shock absorber further includes: a connecting rod and a load transfer block. Among them, the connecting rod is arranged vertically, and the opposite two ends of the connecting rod are respectively connected to the load transfer block and the upper limiting 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. 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 provided in 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. One end of the connecting rod is connected to the load through a load transfer block. The other end of the connecting rod extends into the installation groove and is connected to the middle area of the bottom wall surface of the installation groove.

[0013] Among them, the lower limit structure includes a lower limit plate and a support rod. The support rod is vertically arranged, 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 damping assembly further includes a nut. The nut is located between the lower limit plate and the bottom plate and is threadedly connected to the support rod, and the lower limit plate abuts against the nut.

[0014] The embodiment of the present application also provides a damping system, and the damping system includes the spring damper in any one of the above.

[0015] The beneficial effects of the present application are as follows: The spring damper and the 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. Among them, 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 relatively spaced from the lower limit structure, and the upper limit structure is connected to the load. 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. In this way, because the vertical stiffness of the leaf spring is small and the horizontal stiffness is large, it can be realized that the vertical damping assembly is restricted from moving horizontally through 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, and thus the damping performance and structural stability of the spring damper can be improved. Description of the Drawings

[0016] The following combines the drawings and describes the specific embodiments of the present application in detail, and the technical solutions and other beneficial effects of the present application will be obvious.

[0017] Figure 1 is a three-dimensional structural schematic diagram of the damping system provided by the embodiment of the present application;

[0018] Figure 2 is a side view structural schematic diagram of the damping system provided by the embodiment of the present application;

[0019] Figure 3 is a schematic cross-sectional structure diagram taken along Figure 2 the line A-A' in

[0020] Figure 4 is a schematic three-dimensional structure diagram of a spring shock absorber provided by an embodiment of the present application;

[0021] Figure 5 is a schematic top-view structure diagram of a spring shock absorber provided by an embodiment of the present application;

[0022] Figure 6 is along Figure 5 the line B-B' in

[0023] Figure 7 is along Figure 5 the line C-C' in

[0024] Figure 8 is Figure 6 an enlarged view of the structure within the circular dashed-line frame in

[0025] Reference numerals:

[0026] 10 - bottom plate; 20 - load / top plate; 30 - spring shock absorber;

[0027] 31 - vertical shock absorption component; 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 - mounting groove; 317A - positioning hole; 318 - nut;

[0028] 32 - horizontal limit component; 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;

[0029] 33 - connecting rod / flexible rod; 34 - load transfer block. Detailed implementation manners

[0030] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to 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 used to limit the present application.

[0031] In the following description, when a second component is connected to a first component, it may include embodiments where the second component is directly connected to the first component, and may also include embodiments where the second component is connected to the first component through an additional component, such that the second component is not directly connected to the first component.

[0032] In the following description, when a second component is connected with a first component, it may include embodiments where the second component is directly connected with the first component, and may also include embodiments where the second component is connected with the first component through an additional component, such that the second component is not directly connected with the first component.

[0033] 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 directly on top of the other layer or another region, or there may be other layers or regions between it and the other layer or another region. And if the component is flipped, this layer or 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.

[0034] 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 with reference to the directions in the accompanying drawings. Therefore, the directional terms used are for explaining and understanding the embodiments of the present application, rather than for limiting the embodiments of the present application. In each of the accompanying drawings, units with similar structures are denoted by the same reference numerals. For clarity, the various parts in the drawings are not drawn to scale. In addition, some related parts may not be shown in the drawings.

[0035] Metal springs are known to be applied in many vibration damping systems for passive vibration damping of important components, absorbing and filtering vibration shocks. Usually, three or more spring dampers plus active control components, such as voice coil motors arranged in different numbers in horizontal and vertical directions, form an active vibration damping system. Metal springs come in various common forms, such as helical springs and leaf springs. The above-mentioned vibration damping system generally has three or more helical springs vertically to provide effective support for the load and achieve effective vibration damping function above the natural frequency of the system composed of the spring and the load.

[0036] The above spring damping system usually needs to be adjustable within a certain range in the bearing capacity of the spring at the static initial position to adapt to different load weights. To keep the system stable, the vertical force needs to be evenly distributed and no horizontal force or torque is introduced. In this way, the spring should not twist or tilt during the adjustment process to avoid the horizontal component causing the horizontal offset of the load. In the active vibration damping system, the horizontal offset of the load will cause uneven gaps between the mover and the stator of the voice coil motor, affecting the performance difference of the voice coil motor.

[0037] Therefore, after the height of the above spring active vibration damping system is adjusted, the load as a whole must be adjusted horizontally, and this process is extremely cumbersome. In addition, during the operation of the vibration damping system, it is usually desired that the helical spring only produces vertical deformation and does not tilt or twist horizontally, so as to keep the system structure stable, which is a great challenge to the structural design.

[0038] To solve the above problems, an embodiment of the present application provides a spring damper and a vibration damping system. The spring damper is applied in the vibration damping system and includes a vertical vibration damping component and a horizontal limiting component; wherein, the vertical vibration damping component includes a spring, an upper limiting structure and a lower limiting structure. The lower limiting structure is connected to the bottom plate, the upper limiting structure is located on the side of the lower limiting structure away from the bottom plate and is relatively spaced from the lower limiting structure, and the upper limiting structure is connected to the load. The spring is vertically arranged between the upper limiting structure and the lower limiting structure; the horizontal limiting component 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 limiting structure and / or the lower limiting structure. In this way, because the vertical stiffness of the leaf spring is small and the horizontal stiffness is large, the horizontal movement of the vertical vibration damping component can be restricted 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, and thus the vibration damping performance and structural stability of the spring damper can be improved.

[0039] The following will be described in detail with specific embodiments. It should be noted that the serial numbers of the following embodiments are not used to limit the preferred order of the embodiments.

[0040] Please refer to Figures 1 to 6 , Figure 1is 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 5 The 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Specifically, the horizontal limiting component 32 may include a fixed seat 32B and a leaf spring 324. Among them, the fixed seat 32B can be connected to the bottom plate 10, one end of the leaf spring 324 can be connected to the fixed seat 32B, and the other end can be connected to the upper limiting structure 31A and / or the lower limiting structure 31B. In this way, due to the small vertical stiffness and large horizontal stiffness of the leaf spring 324, the movement of the vertical damping component 31 in the horizontal direction can be restricted by the leaf spring 324, 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, and thus the damping performance and structural stability of the spring damper 30 can be improved.

[0045] Moreover, during the use of the above spring damper 30, the leaf spring 324 can be replaced according to actual needs to achieve the purpose of changing the stiffness.

[0046] Specifically, the height of the lower limiting structure 31B relative to the bottom plate 10 can be adjustable. Thus, by adjusting the height of the lower limiting structure 31B relative to the bottom plate 10, the distance between the upper limiting structure 31A and the lower limiting structure 31B can be adjusted, so as to achieve the purpose of adjusting the deformation degree of the spring 311, so that the bearing capacity of the spring 311 at the initial static position can be adjusted within a certain range, realizing that the spring damper 30 can adapt to different weights of the load 20. And during the process of adjusting the deformation degree of the spring 311, the horizontal limiting component 32 in the spring damper 30 can reduce the torsion or inclination of the spring 311, so as to avoid the horizontal movement of the spring 311 causing the horizontal offset of the load 20, realizing that after adjusting the deformation degree of the spring 311, there is no need to adjust the whole load 20 in the horizontal direction, and thus the damping performance and structural stability of the spring damper 30 can be improved.

[0047] In the above spring damper 30, the fixed seat 32B may include a lower support seat 321 and an upper support seat 322. Among them, the upper support seat 322 is connected to the bottom plate 10 through the lower support seat 321. The horizontal limiting component 32 may further include a vertical floating plate 323, and the vertical floating plate 323 is arranged at a relatively spaced interval from the upper support seat 322 in the horizontal direction. The leaf spring 324 can be arranged parallel to the horizontal plane. The relatively two ends of the leaf spring 324 in its length direction can be respectively connected to the upper support seat 322 and the vertical floating plate 323, and the upper limiting structure 31A and / or the lower limiting structure 31B can 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 it can also be realized that the other end of the leaf spring 324 is connected to the upper limiting structure 31A and / or the lower limiting structure 31B through the vertical floating plate 323.

[0048] Specifically, the number of leaf springs 324 included in the above-mentioned horizontal limiting component 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 opposite ends along its length direction, so that the vertical floating plate 323 and the upper support seat 322 are connected together by the multiple leaf springs 324 to form a hollow structure 32A with openings at both vertical ends, thereby realizing that the upper support seat 322, the vertical floating plate 323 and the multiple leaf springs 324 jointly form a cantilever structure.

[0049] Moreover, the upper limiting structure 31A of the vertical damping component 31 can be connected to the vertical floating plate 323, and at least part of the spring 311 of the vertical damping component 31 can be accommodated in the hollow structure 32A. Thus, not only can the gravity of the load 20 be transmitted to the upper limiting structure 31A, but also the horizontal upward movement of the vertical damping component 31 can be restricted by the horizontal limiting component 32. Therefore, during the damping process of the load 20 by the spring damper 30, after the load 20 is installed, the gravity of the load 20 can be balanced by the spring 311 and the leaf springs 324. And in the static state, the spring 311 can be vertically adjusted while being horizontally stopped. In the working state, the spring 311 only bears vertical force and has no horizontal component force. As a result, when the spring damper 30 achieves a smaller vertical stiffness, it also achieves a larger horizontal stiffness, thus making the load 20 have better horizontal stability and offsetting part of the adverse effects caused by the non-axial deformation 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.

[0050] It should be noted that in this embodiment, the cantilever structure jointly constituted by the upper support seat 322, the vertical floating plate 323 and the multiple leaf springs 324 can achieve extremely low vertical stiffness and extremely large horizontal stiffness under the condition of very small vertical displacement in the working state. For example, it can be designed to be more than 20 times larger than the vertical stiffness. This enables the floating cylinder formed by the connection of the upper limiting structure 31A and the vertical floating plate 323 to approximately translate vertically and have an approximate horizontal offset of 0 under the condition of very small displacement. Therefore, the floating cylinder has extremely high horizontal stability and can largely resist the horizontal component force caused by the inclination or torsion of the spring 311 itself.

[0051] Exemplarily, in the horizontal limiting component 32, the leaf spring 324 can be made of an elastic material, and when it undergoes small-amplitude deformation, the stiffness in its thickness direction is much smaller than the stiffness in its length direction (for example, it can be more than 20 times smaller).

[0052] Exemplarily, as Figures 1 to 6As 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.

[0053] For example, Figures 1 to 6 As 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] In some specific embodiments, Figure 4As shown, the above-mentioned spring shock absorber 30 may further include a scale plate 320. The scale plate 320 may be provided with scales for indicating the height of the lower limit plate 314 relative to the bottom plate 10, which is beneficial to improving the efficiency and accuracy of adjusting the height of the lower limit plate 314.

[0058] Specifically, as Figure 4 shown, the scale plate 320 may be arranged vertically to the horizontal plane and may be fixed on the surface of the lower support seat 321 and / or the upper support seat 322 facing the vertical shock absorption assembly 31.

[0059] In some specific embodiments, as Figures 1 to 6 shown, in the vertical shock absorption assembly 31, the position of the lower limit plate 314 on the support rod 312 is adjustable. Thus, by adjusting the position of the lower limit plate 314 on the support rod 312, the height of the lower limit plate 314 relative to the bottom plate 10 can be adjusted.

[0060] Specifically, as Figure 6 shown, the vertical shock absorption assembly 31 may further include a nut 318. The nut 318 is located between the lower limit plate 314 and the bottom plate 10 and may be threadedly connected to the support rod 312. And the lower limit plate 314 may be in contact with the nut 318. Thus, by rotating the nut 318, the lower limit plate 314 can move up and down synchronously with the nut 318 along the length direction of the support rod 312 to compress or release the spring 311, thereby realizing the vertical height adjustment without introducing a load horizontal offset.

[0061] Exemplarily, as Figure 6 shown, the support rod 312 may 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 may be threadedly connected to the corresponding threaded hole on the bottom plate 10, or may be clamped in the corresponding positioning hole on the bottom plate 10, thereby realizing the fixed connection between the screw rod 312 and the bottom plate 10.

[0062] In some other specific embodiments, as Figures 1 to 6 shown, in the vertical shock absorption assembly 31, the length of the support rod 312 between the bottom plate 10 and the lower limit plate 314 is adjustable. Thus, by adjusting the length of the support rod 312 between the bottom plate 10 and the lower limit plate 314, the height of the lower limit plate 314 relative to the bottom plate 10 can be adjusted.

[0063] Specifically, the support rod 312 may be a telescopic rod. The opposite two ends of the telescopic rod may be respectively fixedly connected to the lower limit plate 314 and the bottom plate 10, and the length of the telescopic rod is adjustable, so as to realize the adjustable distance between the lower limit plate 314 and the bottom plate 10.

[0064] In some embodiments, asFigures 1 to 6 As shown, the spring shock absorber 30 may further include a horizontal shock absorption assembly 33. The horizontal shock absorption assembly 33 is located between the bottom plate 10 and the load 20 and is used for shock absorption in the horizontal upward direction, so that the spring shock absorber 30 has both a vertical shock absorption function and a horizontal shock absorption function.

[0065] Specifically, as Figures 1 to 6 shown, the horizontal shock absorption assembly 33 may be a connecting rod 33. The connecting rod 33 may be vertically arranged, and the opposite ends (i.e., the upper end and the lower end) of the connecting rod 33 may be respectively connected to the load 20 and the upper limit structure 31A (for example, the upper limit plate 313), so as to realize 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 shock absorption of the load 20.

[0066] In some specific embodiments, as Figures 1 to 6 shown, the spring shock absorber 30 may further include a load adapter block 34. The load adapter block 34 is connected to the load 20, and the upper end of the connecting rod 33 may be connected to the load adapter block 34, so as to realize that the load adapter block 34 connects the connecting rod 33 to the load 20.

[0067] Exemplarily, the connecting rod 33 may specifically be a flexible rod 33.

[0068] Exemplarily, the connecting rod 33 may be made of an elastic material, and it will undergo elastic deformation when subjected to horizontal force, realizing horizontal upward shock absorption of the load 20.

[0069] In some embodiments, as Figure 6 shown, the upper limit plate 313 may have a first surface (i.e., the upper surface) facing away from the lower limit structure 31B (for example, the lower limit plate 314) and a second surface (i.e., the lower surface) facing the lower limit structure 31B (for example, the lower limit plate 314). Specifically, the upper limit structure 31A may further include a first protrusion 315. The first protrusion 315 may be provided in the middle region 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 abutted against the second surface of the upper limit plate 313, so as to realize the positioning of the upper end portion of the spring 311 by the upper limit structure 31A.

[0070] Specifically, as Figure 6As shown, the lower limit plate 314 may have a first surface (i.e., the lower surface) facing away from the upper limit structure 31A (for example, the upper limit plate 313) and a second surface (i.e., the upper surface) facing the upper limit structure 31A (for example, the upper limit plate 313). Specifically, the lower limit structure 31B may further include a second protrusion 316, and the second protrusion 316 may be provided on the middle region of the second surface of the lower limit plate 314. Moreover, the opposite ends (i.e., the upper end and the lower end) of the spring 311 in the vertical direction may be sleeved on the first protrusion 315 and the second protrusion 316 respectively, and may be abutted against the second surface of the upper limit plate 313 and the second surface of the lower limit plate 314 respectively, so as to position the spring 311 between the upper limit structure 31A and the lower limit structure 31B.

[0071] In some specific embodiments, as Figure 6 shown, in the vertical damping assembly 31, a through hole may be provided in the middle region of the second surface (i.e., the lower surface) of the lower limit plate 314, and the through hole penetrates through the lower limit plate 314 and the second protrusion 316. Moreover, one end (i.e., the lower end) of the support rod 312 in 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 region 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 this region, so as to enable the support rod 312 to pass through the lower limit plate 314 and the second protrusion 316 and support the spring 311.

[0072] Moreover, in the above embodiments where the spring damper 30 further includes a connecting rod 33, as Figure 6 shown, an installation groove 317 may be provided in the middle region of the first surface (i.e., the upper surface) of the upper limit plate 313, and the installation groove 317 may penetrate through to the first protrusion 315, for example, may penetrate through the upper limit structure 313 and part of the first protrusion 315. Moreover, in the spring damper 30, one end (i.e., the upper end) of the connecting rod 33 in its length direction may be connected to the load 20 through a load transfer block 34, and the other end (i.e., the lower end) of the connecting rod 33 in its length direction may extend into the installation groove 317 and be connected to the inside of the installation groove 317, for example, may be specifically connected to the middle region of the bottom wall surface of the installation groove 317.

[0073] Specifically, as Figure 6 shown, the opening width of the installation groove 317 may be greater than the width of the connecting rod 33, so that the part of the connecting rod 33 extending into the installation groove 317 can shake horizontally, thereby improving the damping effect of the connecting rod 33 in the horizontal direction.

[0074] Exemplarily, as Figure 6As shown, a positioning hole 317A may be formed in the middle region of the bottom wall surface of the installation groove 317, and the installation groove 317 is in tight fit with the lower end of the connecting rod 33 to couple the lower end of the connecting rod 33 with the vertical vibration damping assembly 31.

[0075] In this way, after the installation load 20 is installed, the spring 311 can be compressed by lifting the lower limit plate 314 (or the lower limit structure 31B). After lifting to an appropriate height, the gravity of the load 20 can be balanced by the compression reaction force of the spring 311. Then, the height of the lower limit plate 314 relative to the bottom plate 10 can be further finely adjusted to make the load 20 reach the designed working height. After that, the vertical vibration of the bottom plate 10 is mainly transmitted to the load 20 through the support rod 312, the lower limit plate 314, the spring 311, the floating cylinder (i.e., the structure formed by connecting the upper limit structure 31A and the vertical floating plate 323), the connecting rod 33, and the load transfer block 34. At this time, the spring 311 plays a major role in vibration isolation; while the horizontal vibration of the bottom plate 10 is transmitted to the load 20 through the upper support seat 322, the leaf spring 311, the floating cylinder, the connecting rod 33, and the load transfer block 34. At this time, the connecting rod 33 plays a major role in vibration isolation.

[0076] In the above embodiment, as Figure 4 、 Figure 5 、 Figure 7 and Figure 8 shown, the above 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 can 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 can be connected to the corresponding leaf spring slot 326 on the vertical floating plate 323 through its corresponding leaf spring locking structure 325. And 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, so as to realize that the leaf spring 324 is stuck in its corresponding leaf spring slot 326 in the width direction of the leaf spring 324 to avoid the left - right shaking of the leaf spring 324, and to realize that the leaf spring 324 is blocked by its corresponding leaf spring locking structure 325 in the length direction of the leaf spring 324, thus realizing the precise positioning of the leaf spring 324.

[0077] Specifically, each leaf spring 324 can correspond to two leaf spring locking structures 325 among the above-mentioned multiple leaf spring locking structures 325, denoted as the first leaf spring locking structure and the second leaf spring locking structure. Each leaf spring 324 can correspond to a leaf spring slot 326 on the upper support base 322, denoted as the first leaf spring slot. Each leaf spring 324 can correspond to a leaf spring slot on the vertical floating plate 323, denoted as the second leaf spring slot.

[0078] Moreover, 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 base 322 through the corresponding first leaf spring locking structure of 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 corresponding second leaf spring locking structure of the leaf spring 324. And the corresponding first leaf spring locking structure and the second leaf spring locking structure of the leaf spring 324 can prevent the leaf spring 324 from moving along the length direction of the leaf spring 324, and the corresponding first leaf spring slot and the second leaf spring slot of the leaf spring 324 can prevent the leaf spring 324 from moving along the width direction of the leaf spring 324.

[0079] In some specific embodiments, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 shown, openings 3241 can be provided at both ends of each leaf spring 324 along its length direction, denoted as the first opening and the second opening. And the leaf spring slot 326 can include a first groove 3261, a second groove 3262 provided in the middle region of the bottom wall surface of the first groove 3261, and a third groove 3263 provided in the middle region of the bottom wall surface of the second groove 3262.

[0080] Specifically, the leaf spring locking structure 325 can include a leaf spring locking block 3251 and a leaf spring locking screw 3252. Among them, the leaf spring locking block 3251 can include a base 3251A and a convex portion 3251B, and the base 3251A has opposite first and second surfaces. The convex portion 3251B can be provided in the middle region of the first surface of the base 3251A. A through hole 3253 penetrating the base 3251A and the convex portion 3251B can be provided on the leaf spring locking block 3251. The through hole 3253 is adapted to the leaf spring locking screw 3252 and can be located at the middle position of the leaf spring locking block 3251 to realize the central locking of the leaf spring locking screw 3252 by the leaf spring locking block 3251.

[0081] Exemplarily, as Figure 8 shown, in the leaf spring locking structure 325, the base 3251A and the convex portion 3251B in the leaf spring locking block 3251 can be an integrally formed structure. Specifically, as Figure 8As shown, the leaf spring locking block 3251 can have a T-shaped structure, and, as Figure 8 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 facing the bottom wall surface of the first groove 3261 in the leaf spring slot 326. The leaf spring 324 can be disposed 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 facing the bottom wall surface of the second groove 3262 and extend through the corresponding opening 3241 on the leaf spring 324 into the second groove 3262. The leaf spring locking screw 3252 in the leaf spring locking structure 325 can extend through the through hole 3253 on the leaf spring locking block 3251 in the leaf spring locking structure 325 into the third groove 3263 and be connected to the third groove 3263, for example, specifically connected to the middle area of the bottom wall surface of the third groove 3263, so as to fix the leaf spring 324 to its corresponding leaf spring slot 326 through its corresponding leaf spring locking structure 325. And, during 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 since the contact area between the leaf spring locking block 3251 and the leaf spring 324 is relatively large, this helps to more evenly disperse the pressure around the opening 3241 on the leaf spring 324, thereby effectively avoiding cracks in the leaf spring 324 caused by stress concentration.

[0082] Exemplarily, as Figure 8 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 as to prevent the leaf spring 324 from moving along the width direction of the leaf spring 324 in the leaf spring slot 326.

[0083] Exemplarily, as Figure 8 shown, for the leaf spring 324 and its corresponding leaf spring locking structure 325 and leaf spring slot 326, the dimension of the protrusion 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 opening 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 dimension of the protrusion 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 prevent the protrusion 3251B of the leaf spring locking block 3251 in the leaf spring locking structure 325 from moving the leaf spring 324 along the length direction of the leaf spring 324.

[0084] Exemplarily, asFigure 8 As shown, for the leaf spring 324 and its corresponding leaf spring locking structure 325 and leaf spring slot 326, the length of the protruding portion 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 less than the depth of the second groove 3262 in the leaf spring slot 326, so as to ensure that the protruding portion 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.

[0085] In the above embodiment, as Figures 1 to 7 shown, the upper support seat 322 can 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 can 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 above horizontal limiting assembly 32 can include four leaf springs 324, denoted as the first leaf spring 324A, the second leaf spring 324B, the third leaf spring 324C, and the fourth leaf spring 324D (as Figure 7 shown).

[0086] Among them, the first leaf spring 324A and the second leaf spring 324B can be arranged at a relatively spaced interval 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 two side edge regions 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 two side edge regions of the lower surface of the vertical floating plate 323.

[0087] The third leaf spring 324C and the fourth leaf spring 324D can be arranged at a relatively spaced interval 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 two side edge regions 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 two side edge regions of the upper surface of the vertical floating plate 323.

[0088] In some specific embodiments, as 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] In some embodiments, such as Figures 1 to 3 shown, the above-mentioned load 20 may specifically be the top plate 20. Moreover, when using the above-mentioned spring shock absorber 30 to shock-absorb the equipment to be shock-absorbed (such as, semiconductor equipment, precision machine tools or other precision equipment), the top plate 20 may be connected to the equipment to be shock-absorbed and be flexibly supported by the spring shock absorber 30, so as to form a shock-absorbing main body and achieve shock absorption of the equipment to be shock-absorbed.

[0095] In some embodiments, the above-mentioned shock-absorbing system may also be an active shock-absorbing system. Correspondingly, the above-mentioned shock-absorbing system may further include a motor assembly (such as, a bidirectional voice coil motor drive assembly), a sensor assembly and a controller. Among them, the mover of the motor assembly may be fixed to the load 20, and the stator may be fixed to the bottom plate 10 through an adapter. The sensor assembly may be fixed to the load 20 and be 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.

[0096] It should be noted that for the shock-absorbing system provided by the embodiments of the present application, due to the provision of the spring shock absorber provided by the embodiments of the present application, the beneficial effects achievable by any of the spring shock absorbers provided by the embodiments of the present application can be realized. For details, please refer to the previous embodiments and will not be elaborated herein.

[0097] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall 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; A horizontal limit assembly, comprising a fixing seat and a leaf spring, wherein the fixing seat is connected to the bottom 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; Furthermore, 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.

2. The spring damper according to claim 1, 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.

3. The spring damper according to claim 2, 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.

4. The spring damper according to claim 3, characterized in that: The length of the protrusion extending into the second groove is smaller than the depth of the second groove.

5. The spring damper according to claim 1, 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.

6. 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.

7. The spring damper according to claim 6, 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.

8. 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.

9. A vibration reduction system, characterized in that: A spring damper comprising the spring damper according to any one of claims 1 to 8.

Images