Multi-stage gradual rigidity spring shock absorber

Abstract

The utility model relates to the technical field of spring shock absorbers, and discloses a multistage gradient stiffness spring shock absorber, which comprises two shock absorber main bodies, the two shock absorber main bodies are symmetrically arranged up and down, each shock absorber main body is provided with a fastening mechanism, and the two shock absorber main bodies are connected through a connecting mechanism. The shock absorber body comprises a steel plate spring set, the steel plate spring set is formed by overlapping a plurality of steel plate springs with unequal lengths and unequal curvatures, and the two ends of the steel plate spring set are tightly pressed and fixed through hoops. According to the utility model, the frequency response range is widened, that is, the opposite-direction double-shock-absorber structural design is adopted, so that the vibration frequency range can be enlarged, more effective vibration absorption and suppression can be carried out, and the overall frequency response range is widened; and the mounting distance between the two shock absorber main bodies in the opposite direction can be adjusted according to the actual shock absorption requirement, and adjustment is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring shock absorber technical field, concretely is multistage gradually change rigidity spring shock absorber. BACKGROUND

[0002] Multistage gradually change rigidity spring shock absorber is an advanced damping device, mainly through the elastic deformation of spring to absorb and disperse vibration energy. When subjected to external force, the spring compresses or stretches and deforms, converts vibration energy into elastic potential energy and stores it up, thereby reducing vibration amplitude and impact degree. When the external force disappears, the spring restores to its original shape by relying on elasticity, releases the stored energy, offsets external impact and further reduces vibration amplitude.

[0003] The existing multistage gradually change rigidity spring shock absorber has the following problems when in use: its frequency adaptability is limited, although it can work in a wide frequency range, but for some extreme low frequency or high frequency vibration, it may not achieve ideal damping effect, and when the vibration frequency exceeds its designed effective range, the damping performance will decrease. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides multistage gradually change rigidity spring shock absorber, solves the problem raised in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: multistage gradually change rigidity spring shock absorber, including two shock absorber main parts, two shock absorber main parts are symmetrically arranged, each shock absorber main part is equipped with fastening mechanism, and two shock absorber main parts are connected through connecting mechanism, the shock absorber main part includes steel plate spring group, the steel plate spring group is overlapped by multiple pieces of steel plate spring of unequal length and unequal curvature and its both ends are fastened by clamp compression, each end of the steel plate spring group is fixedly connected with an installation sleeve, the connecting mechanism includes two groups of assembly seats arranged symmetrically, each group of assembly seats is two and is arranged symmetrically in front and back, the installation sleeve is assembled with third bolt, three mounting holes for the fixed installation of third bolt are arranged between the front and back sidewalls of the assembly seat in equal distance from top to bottom.

[0006] As a further scheme of the utility model: the outside of the installation sleeve is fixedly sleeved with a matched assembly sleeve, the matched assembly sleeve is a circular arc sleeve and is made of steel.

[0007] As a further scheme of the utility model: the fastening mechanism includes first compression blocks that are slidably attached to the middle of the opposite ends of the two steel plate spring groups, the fastening mechanism further includes second compression blocks that are slidably attached to the middle of the opposite direction ends of the two steel plate spring groups, a matching hole is formed between the upper and lower sidewalls of the center positions of the first compression blocks and the second compression blocks, a first bolt is assembled in the matching hole, and an assembly hole for assembling the first bolt is formed between the upper and lower sidewalls of the center positions of the multiple steel plate springs of the steel plate spring group.

[0008] As a further scheme of the utility model: the first compression blocks and the second compression blocks are each fixedly connected with a matching seat on the two sides of the front and rear ends, a through hole is formed between the center positions of the upper and lower sidewalls of the matching seat, and a same second bolt is fixedly installed in the two through holes that are arranged on the same side and in an up-down symmetrical manner.

[0009] Compared with the prior art, the utility model has the beneficial effects that:

[0010] 1、In the utility model, the frequency response range is widened, that is, a double damper structure design in a facing manner is adopted, the vibration frequency range can be increased, vibration absorption and suppression can be more effective, the overall frequency response range is widened, and the installation spacing between the two damper main bodies in a facing manner can be adjusted through the adjustable installation structure design, so that adjustment can be made according to actual damping requirements, and convenience is improved.

[0011] 2、In the utility model, the damper main body is composed of multiple steel plate springs with different lengths and different curvatures, in addition to the clamps for fastening the multiple steel plate springs, the mechanical fastening mechanism is further configured, the two compression blocks are centrally arranged, the multiple steel plate springs can be clamped, the bolts arranged in front and back are fastened, the connection reliability between the multiple steel plate springs is good. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall three-dimensional structure of the utility model Figure 1 ;

[0013] Figure 2 It is the overall three-dimensional structure of the utility model Figure 2 ;

[0014] Figure 3 It is the overall three-dimensional structure of the utility model

[0015] Figure 4 It is the overall three-dimensional structure of the utility model

[0016] In the figure: 1, shock absorber main body; 2, fastening mechanism; 3, connecting mechanism; 11, clamp; 12, steel plate spring group; 13, assembly hole; 14, mounting sleeve; 15, matching assembly sleeve; 21, first pressing block; 22, second pressing block; 23, matching hole; 24, first bolt; 25, matching seat; 26, second bolt; 31, assembly seat; 32, mounting hole; 33, third bolt. DETAILED DESCRIPTION

[0017] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0018] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] Please refer to Figures 1-4The utility model discloses embodiment, multistage gradually change rigidity spring damper, including two damper main body 1, two damper main body 1 is symmetrically arranged, each damper main body 1 is equipped with fastening mechanism 2, and two damper main body 1 is connected through connecting mechanism 3, and damper main body 1 includes steel plate spring group 12, and steel plate spring group 12 is overlapped by multiple pieces of steel plate spring of unequal length and unequal curvature and is compressed and fastened through the clamp 11 at both ends, and one mounting sleeve 14 is fixedly connected at both ends of steel plate spring group 12, connecting mechanism 3 includes two groups of assembly seat 31 that are symmetrically arranged, and each assembly seat 31 is two and symmetrically arranged, and third bolt 33 is assembled in mounting sleeve 14, three mounting holes 32 for the fixed mounting of third bolt 33 are symmetrically arranged between the front and rear side walls of assembly seat 31, and the whole is through the widening frequency response range, namely adopts the double damper structure design of opposite type, and it can increase the vibration frequency range, can carry out more effective vibration absorption and suppression, and the whole frequency response range is widened, and it is provided with adjustable mounting structure design, namely, the mounting sleeve 14 of damper main body 1 is connected and installed with the mounting hole 32 on assembly seat 31 through third bolt 33, and the mounting spacing between the opposite two damper main bodies 1 can be adjusted, and the actual damping demand is adjusted, and it is more convenient.

[0021] The mounting sleeve 14 is fixedly sleeved with a matching assembly sleeve 15, which is a circular arc sleeve made of steel.

[0022] The fastening mechanism 2 includes a first compression block 21 that is slidably attached to the middle part of the opposite ends of the two steel plate spring groups 12, and the fastening mechanism 2 further includes a second compression block 22 that is slidably attached to the middle part of the opposite ends of the two steel plate spring groups 12. A matching hole 23 is formed between the upper and lower side walls of the center positions of the first compression block 21 and the second compression block 22, and a first bolt 24 is assembled in the matching hole 23. A plurality of steel plate springs of the steel plate spring group 12 are formed between the upper and lower side walls of the center positions of the plurality of steel plate springs, and a mounting hole 13 for assembling the first bolt 24 is formed. The damper main body 1 is formed by overlapping a plurality of steel plate springs of unequal length and unequal curvature, and in addition to the clamp 11 for fastening the plurality of steel plate springs, the mechanical fastening mechanism 2 is also provided, which includes two compression blocks in the middle. The compression blocks can clamp the plurality of steel plate springs, and the bolts arranged in front and back and penetrating the plurality of steel plate springs are used for fastening. The connection between the plurality of steel plate springs has good reliability.

[0023] The first pressing block 21 and the second pressing block 22 are fixedly connected with a cooperation seat 25 on both sides of the front and rear ends, respectively, a through hole is formed between the center positions of the upper and lower side walls of the cooperation seat 25, the same second bolt 26 is fixedly installed in the two through holes arranged on the same side and in the upper and lower symmetrical positions, the first bolt 24 and the second bolt 26 can be sequentially removed, then the clamp 11 is removed, and the disassembly of the leaf spring of the leaf spring group 12 is realized.

[0024] The working principle of the utility model is: the integral spring shock absorber can be fixedly installed between the to-be-damped assembly through cooperation with the assembly cooperation set 15, the leaf spring group 12 is composed of multiple leaf springs with different lengths and different curvatures, when impact force is generated, the leaf spring is deformed, absorbs and buffers the vibration energy through the elasticity of the leaf spring, thereby damping effect is achieved, meanwhile, the longitudinally arranged leaf spring can also transmit force and torque during vehicle driving, thereby guiding effect is achieved, the shock absorber main body 1 is composed of multiple leaf springs with different lengths and different curvatures, in addition to the clamp 11 for fastening the multiple leaf springs, the mechanical fastening mechanism 2 is also arranged, the mechanical fastening mechanism 2 comprises two centrally arranged pressing blocks, the multiple leaf springs can be clamped, and the multiple leaf springs are fastened through the bolts arranged in front and back and the bolts penetrating through the multiple leaf springs, the connection reliability between the multiple leaf springs is good.

[0025] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A multistage progressive stiffness spring shock absorber, comprising two shock absorber bodies (1); characterized in that The two shock absorber bodies (1) are arranged in an upside-down symmetrical manner, each of the shock absorber bodies (1) is provided with a fastening mechanism (2), and the two shock absorber bodies (1) are connected through a connecting mechanism (3); The shock absorber body (1) comprises a steel plate spring group (12), the steel plate spring group (12) is composed of multiple steel plate springs with different lengths and curvatures and is tightly fastened at both ends through a clamp (11), and each end of the steel plate spring group (12) is fixedly connected with an installation sleeve (14); The connecting mechanism (3) comprises two groups of assembly seats (31) arranged in a symmetrical manner, each group of assembly seats (31) comprises two assembly seats arranged in a front-rear symmetrical manner, a third bolt (33) is assembled in the installation sleeve (14), and three mounting holes (32) for fixing and mounting the third bolt (33) are arranged between the front and rear side walls of the assembly seat (31) in an equal distance from top to bottom.

2. The multi-stage variable stiffness spring damper of claim 1, wherein: A matching assembly sleeve (15) is fixedly sleeved on the outside of the installation sleeve (14), the matching assembly sleeve (15) is a circular arc sleeve and is made of steel.

3. The multi-stage progressive rate spring shock absorber of claim 1, wherein: The fastening mechanism (2) comprises a first compression block (21) slidingly fitted on the middle part of the two steel plate spring groups (12) away from each other, and the fastening mechanism (2) further comprises a second compression block (22) slidingly fitted on the middle part of the two steel plate spring groups (12) facing each other.

4. The multi-stage variable stiffness spring damper of claim 3, wherein: A matching hole (23) is formed between the upper and lower side walls of the center of the first compression block (21) and the second compression block (22), and a first bolt (24) is assembled in the matching hole (23).

5. The multi-stage progressive rate spring shock absorber of claim 1, wherein: A plurality of steel plate springs of the steel plate spring group (12) are arranged in an equal distance from top to bottom.

6. The multi-stage variable stiffness spring damper of claim 3, wherein: Each of the first compression block (21) and the second compression block (22) is fixedly connected with a matching seat (25) on both sides of the front and rear ends.

7. The multi-stage variable stiffness spring damper of claim 6, wherein: A through hole is formed between the upper and lower side walls of the center of the matching seat (25), and a second bolt (26) is fixedly installed in the two through holes arranged in an upside-down symmetrical manner on the same side.

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