CN215805980U

CN215805980U - Multi-degree-of-freedom high-frequency shock absorber

Info

Publication number: CN215805980U
Application number: CN202121860731.5U
Authority: CN
Inventors: 马立腾; 刘甜甜; 刘有余
Original assignee: Anhui Polytechnic University
Current assignee: Anhui Polytechnic University
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-02-11
Anticipated expiration: 2031-08-10

Abstract

The utility model provides a multi-degree-of-freedom high-frequency shock absorber, which comprises a base (1) and a box body (2), and is characterized in that: be equipped with support (3) in box body (2), be equipped with a set of spring (4) with box wall connection on support (3) base (1) one end is inserted and is connected through connecting plate (5) and support (3) in box body (2), is equipped with a set of ball hinge (6) on connecting plate (5), ball hinge (6) through connecting spring (6 a) and box wall connection, still be equipped with inlet (7) and liquid outlet (8) and correspond cooperation inlet fluid closing cap (7 a) and play liquid closing cap (8 a) on box body (2), it has silicon oil to pour into in box body (2). The utility model has simple structure, convenient use and long service life and can provide multi-degree-of-freedom high-frequency shock absorption.

Description

Multi-degree-of-freedom high-frequency shock absorber

The technical field is as follows:

the utility model relates to the field of vibration reduction, in particular to a multi-degree-of-freedom high-frequency vibration reducer.

Background art:

with the development of the mechanical technology industry, higher requirements are put on reducing the vibration generated by mechanical devices. In the mechanical working process, multi-degree-of-freedom vibration is easy to generate. At present, the Stewart vibration reduction platform applied to multiple degrees of freedom can realize multiple degrees of freedom vibration reduction, but under the action of high-frequency vibration, the Stewart vibration reduction platform can not meet the vibration reduction requirement.

Although the prior chinese patent publication No. CN105821983A discloses a tuned mass damper for multi-dimensional vibration/shock absorption, which can simultaneously perform vibration absorption with three degrees of freedom, i.e., horizontal, vertical and torsional, and which uses viscoelastic material in the support, it has multi-directional vibration isolation and excellent energy consumption capability. The tuned mass damper has simple structure and convenient manufacture, but has vibration reduction in three degrees of freedom.

The chinese patent publication No. CN106737571A discloses a multidimensional vibration-damping tension integral parallel mechanism, which converts rigid impact into flexible impact by driving a hydraulic driver and a flexible branched chain, so as to obtain a stable working posture. However, the multi-degree-of-freedom platform cannot adapt to high-frequency vibration and timely vibration reduction response to the multi-degree-of-freedom platform. But there are few mechanical devices that achieve six degrees of freedom damping and do not couple to each other and achieve high frequency damping.

The utility model has the following contents:

the utility model provides a multi-degree-of-freedom high-frequency shock absorber for overcoming the defects in the prior art.

The application provides the following technical scheme:

a multi freedom high frequency vibration absorber, it includes base and box body, its characterized in that: the box body is internally provided with a support, the support is provided with a group of springs connected with the box wall, one end of the base is inserted into the box body and is connected with the support through a connecting plate, the connecting plate is provided with a group of ball hinges, the ball hinges are connected with the box wall through connecting springs, the box body is further provided with a liquid outlet, a liquid inlet sealing cover and a liquid outlet sealing cover which are matched correspondingly, and silicone oil is injected into the box body.

On the basis of the technical scheme, the following further technical scheme can be provided:

the base include the bottom plate, connect the montant on the bottom plate, the cover is equipped with and is connected the sealed lid of complex with the box body on the montant, wear to be equipped with the montant spring on the montant, the one end of montant spring is passed through the connecting piece and is connected with the bottom plate, the other end passes through the connecting piece and is connected with the box body.

The support comprises a group of first support plates, a group of second support plates are further inserted into the group of first support plates, a pair of third support plates are inserted into the first support plate between every two adjacent second support plates, and a pair of fourth support plates are respectively inserted into the end parts of the two ends of the group of first support plates.

The first support plate, the second support plate, the third support plate and the fourth support plate are of a pore plate structure.

The bottom of the support is further connected with a second connecting plate, a group of second connecting springs are evenly distributed on the second connecting plate, and one ends of the second connecting springs are connected with the bottom surface of the box body.

Utility model advantage:

the utility model has simple structure, convenient use and long service life and can provide multi-degree-of-freedom high-frequency shock absorption. Particularly, the mutual matching of the pore plate structures of the first, second, third and fourth support plates forming the support, the silicon oil and the spring effectively provides the vibration damping effect with multiple degrees of freedom.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the stent of FIG. 1;

fig. 3 is a schematic structural view of a first support plate according to the present invention;

FIG. 4 is a schematic structural view of a second mounting plate according to the present invention;

FIG. 5 is a schematic structural view of a third mounting plate according to the present invention;

fig. 6 is a schematic structural view of a fourth cradling plate in the present invention.

The specific implementation mode is as follows:

as shown in fig. 1-6, the multi-degree-of-freedom high-frequency vibration absorber comprises a base 1 and a box body 2, wherein the base 1 comprises a bottom plate 1a, and vertical rods 1b which are vertically distributed are connected to the bottom plate 1 a. The lower end of the vertical rod 1b is inserted into the box body 2, a vertical rod spring 1d is sleeved on the vertical rod 1b outside the box body 2, one end of the vertical rod spring 1d is fixedly connected with the base 1 through a connecting piece and a screw, and the other end of the vertical rod spring 1d is fixedly connected with the top of the box body 2 through a connecting piece and a screw.

The vertical rod 1b is also sleeved with a sealing cover 1c which is connected and matched with the box body 2, and the insertion hole of the vertical rod 1b inserted into the box body 2 is sealed through the sealing cover 1c, so that the silicone oil mentioned below is prevented from leaking from the insertion hole. A liquid inlet 7 is arranged on the top of the box body 2, and a liquid inlet sealing cover 7a which is correspondingly matched is arranged on the liquid inlet 7. A liquid outlet 8 is arranged at the lower part of the side wall of one side of the box body 2, and a liquid outlet sealing cover 8a which is correspondingly matched is arranged on the liquid outlet 8.

A support 3 is arranged in the box body 2, the support 3 comprises a group of first support plates 3a, and the first support plates 3a are distributed in parallel. A group of second bracket plates 3b distributed in parallel are inserted on the group of first bracket plates 3a, and the second bracket plates 3b are distributed in parallel. Two third bracket plates 3c which are horizontally distributed up and down are inserted into the first bracket plate 3a between the two adjacent second bracket plates 3 b. Two fourth bracket plates 3d which are horizontally distributed up and down are respectively inserted at the end parts of the two ends of the group of first bracket plates 3 a. The first support plate 3a, the second support plate 3b, the third support plate 3c and the fourth support plate 3d are in a pore plate structure. The fourth supporting plate 3d is provided with a set of insertion ports 113 d.

The group of first support plates 3a are five first support plates 3a which are transversely and vertically distributed, and a certain distance is arranged between the first support plates 3 a. Four insertion holes 13a which are distributed in a rectangular array shape are arranged on the first support plate 3a, a group of first spring connection holes 13b are distributed at the end parts of the left end and the right end of the first support plate 3a, a horizontal insertion hole 13c which is correspondingly matched with the insertion hole 113d on the fourth support plate 3d is arranged on the plate body between the two adjacent spring connection holes 13b, and longitudinal insertion holes 13d are arranged at the top end parts of the first support plate 3a above the two ends of the insertion holes 13 a.

The group of second support plates 3b are vertically distributed in three longitudinal directions, a group of five lower inserting grooves 113a correspondingly matched with the longitudinal inserting holes 13d are formed in the plate body of each second support plate, and a group of second spring connecting holes 113b are formed in the end portions of the front end and the rear end of each second support plate 3 b.

A third support plate 3c is inserted into each of the insertion holes 13 a. The fourth supporting plate 3d and the second supporting plate 3b are basically the same in structure, except that the front and rear end portions are not provided with the second spring connecting holes 113b, and the longitudinal insertion holes on the fourth supporting plate 3d are correspondingly inserted and matched with the horizontal insertion holes 13 c.

First mounting panel 3a, second mounting panel 3b, third mounting panel 3c and fourth mounting panel 3d all adopt interference connection's mode to peg graft fixedly. The top of the bracket 3 is connected with a first connecting plate 5 which is horizontally distributed, the bottom of the top of the bracket 3 is connected with a second connecting plate 9 which is horizontally distributed, and the first connecting plate and the second connecting plate are both in a pore plate structure.

A group of ball hinges 6 are mounted on the first connecting plate 5, vertically distributed connecting springs 6a are connected to the ball hinges 6, and one ends of the connecting springs 6a are fixedly connected with the inner wall of the top of the box body 2. A group of vertically distributed second connecting springs 10 are uniformly distributed on the second connecting plate 9, and the lower ends of the second connecting springs 10 are connected with the bottom surface of the box body 2. Each of the second spring connecting holes 113b and the first spring connecting holes 13b is connected with a horizontally distributed spring 4, and one end of the spring 4 is connected with the opposite side wall of the box body 2.

The working principle is as follows:

when the vibration force is transmitted to the box body along the vertical rod, the vertical rod spring 1d, the connecting spring 6a and the second connecting spring 10 play a role in absorbing the vibration force, and simultaneously, under the action of the vibration force, the silicone oil in the box body can flow through the support and the holes in the first connecting plate and the second connecting plate to generate certain resistance to further offset the vibration force.

Then, the vibration force transmitted from the directions of the four side walls of the box body 2 is absorbed by the corresponding springs 4 when being transmitted to the support, and the silicon oil in the box body flows through the holes on the support to generate certain resistance to further counteract the vibration force.

Claims

1. The utility model provides a multi freedom high frequency vibration damper, it includes base (1) and box body (2), its characterized in that: be equipped with support (3) in box body (2), be equipped with a set of spring (4) with the box wall connection on support (3) base (1) one end is inserted and is connected with support (3) through first connecting plate (5) in box body (2), is equipped with a set of ball hinge (6) on connecting plate (5), ball hinge (6) through connecting spring (6 a) and box wall connection, still be equipped with inlet (7) and liquid outlet (8) and correspond cooperation feed liquor closing cap (7 a) and play liquid closing cap (8 a) on box body (2), it has silicon oil to pour into in box body (2).

2. A multiple degree of freedom high frequency vibration damper as claimed in claim 1, wherein: base (1) include bottom plate (1 a), connect montant (1 b) on bottom plate (1 a), the cover is equipped with and is connected the sealed lid (1 c) of complex with box body (2) on montant (1 b), wears to be equipped with montant spring (1 d) on montant (1 b), the one end of montant spring (1 d) is passed through the connecting piece and is connected with bottom plate (1 a), the other end passes through the connecting piece and is connected with box body (2).

3. A multiple degree of freedom high frequency vibration damper as claimed in claim 1, wherein: the support (3) comprises a group of first support plates (3 a), a group of second support plates (3 b) are further inserted into the group of first support plates (3 a), a pair of third support plates (3 c) are inserted into the first support plates (3 a) between two adjacent second support plates (3 b), and a pair of fourth support plates (3 d) are respectively inserted into the end parts of the two ends of the group of first support plates (3 a).

4. A multiple degree of freedom high frequency vibration damper according to claim 3, characterized in that: the first support plate (3 a), the second support plate (3 b), the third support plate (3 c) and the fourth support plate (3 d) are of pore plate structures.

5. A multiple degree of freedom high frequency vibration damper as claimed in claim 1, wherein: the bottom of the support (3) is further connected with a second connecting plate (9), a group of second connecting springs (10) are evenly distributed on the second connecting plate (9), and one ends of the second connecting springs (10) are connected with the bottom surface of the box body (2).