CN214945975U - Damping shock absorber with three-way same-order stiffness and displacement compensation - Google Patents
Damping shock absorber with three-way same-order stiffness and displacement compensation Download PDFInfo
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- CN214945975U CN214945975U CN202120625717.0U CN202120625717U CN214945975U CN 214945975 U CN214945975 U CN 214945975U CN 202120625717 U CN202120625717 U CN 202120625717U CN 214945975 U CN214945975 U CN 214945975U
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- bowl
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- shaped metal
- metal rubber
- shock absorber
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Abstract
The invention provides a three-way same-magnitude stiffness and displacement compensation damping shock absorber, which comprises a base, a shell and a support body, wherein the shell is covered and fixed on the base, the support body is arranged in the shell, the middle part of the upper side surface of the support body extends upwards to form a connecting arm, the middle part of the upper surface of the shell is provided with a through hole for extending the outer end of the connecting arm, a shock absorption assembly is arranged in the shell and comprises two shock absorption units which are symmetrically arranged up and down, each shock absorption unit comprises bowl-shaped metal rubber and a spiral spring which is obliquely arranged and circumferentially and uniformly distributed at the periphery of the bowl-shaped metal rubber, the support body is clamped between the upper bowl-shaped metal rubber and the lower bowl-shaped metal rubber, the inner end of the spiral spring is hinged with the inner end of the bowl-shaped metal rubber through a spherical universal joint A, the outer end of the spiral spring is connected with a universal connecting shaft sleeve through a spherical universal joint B, and the metal rubber and the spiral spring are used as core shock absorption elements of the shock absorber, the vibration absorber can realize the same-magnitude rigidity vibration attenuation and larger displacement compensation in the length direction, the width direction and the height direction.
Description
Technical Field
The invention relates to a damping shock absorber with three-direction equivalent-level rigidity and displacement compensation.
Background
In the current research field of three-way dampers, many scholars mainly use traditional rubber elements as damping core elements of the dampers, but the rubber elements are difficult to meet the requirement of long-time normal operation under complex environments due to the materials of the rubber elements. Due to the functional requirements of the shock absorber, most of the shock absorbers mainly adopt a vertically or horizontally arranged spiral spring as a core element of the shock absorber, so that the space utilization rate is low, and the use occasion is fixed singly.
Existing three-way shock absorbers. The problems and defects of the method are mainly as follows: (1) the traditional rubber element is used as a core vibration damping element of the vibration damper, so that the requirement of long-time normal work of the vibration damper in a complex environment is difficult to meet. (2) Current shock absorber designs are dominated by three-way stiffness conditions without integrating the three-way displacement compensation requirements. (3) The existing three-way shock absorber has the problem that the spring can be bent and deformed when loaded due to the vertical or horizontal arrangement of the spring.
Disclosure of Invention
In view of this, the invention aims to provide a damping shock absorber with three-direction equivalent stiffness and displacement compensation, aiming at the problems of vibration attenuation and displacement compensation of large mechanical equipment bearing multidirectional loads in a complex service environment.
The invention is realized by adopting the following scheme: a damping shock absorber with three-direction same-magnitude rigidity and displacement compensation comprises a base, a shell and a supporting body, wherein the shell is covered and fixed on the base, the supporting body is arranged in the shell, the middle part of the upper side surface of the supporting body extends upwards to form a connecting arm, the middle part of the upper surface of the shell is provided with a through hole for extending the outer end of the connecting arm, a shock absorption assembly is arranged in the shell, and the supporting body is connected with the shell through the shock absorption assembly;
the vibration damping assembly comprises two vibration damping units which are symmetrically arranged up and down, and the vibration damping unit at the upper side is sleeved on the connecting arm;
the damping unit comprises bowl-shaped metal rubber and helical springs which are obliquely arranged and are uniformly distributed on the periphery of the bowl-shaped metal rubber, the supporting body is clamped between the upper bowl-shaped metal rubber and the lower bowl-shaped metal rubber, the inner ends of the helical springs are hinged with the inner ends of the bowl-shaped metal rubber through spherical universal joints A, the outer ends of the helical springs are connected with universal connecting shaft sleeves through spherical universal joints B, and the universal connecting shaft sleeves on the upper side and the lower side are respectively fixed on the shell and the base;
the spherical universal joint A is sleeved at the inner end of the spiral spring and fixedly installed at the outer end of the spiral spring.
Furthermore, an outer flange is arranged at the outer end of the bowl-shaped metal rubber, a locking gasket for fixedly pressing the outer flange is sleeved on the bowl-shaped metal rubber, and the locking gaskets on the upper side and the lower side are fixed on the shell and the base through fastening bolts A respectively.
Furthermore, a clamping plate A and a clamping plate B which are sequentially arranged from outside to inside are arranged at the inner end of the bowl-shaped metal rubber, and the ball head part of the spherical universal joint A is clamped between the clamping plate A and the clamping plate B and is in rotating fit with the clamping plate A and the clamping plate B; the splint A and the splint B are locked by the fastening bolt B, and the support body is clamped between the upper splint B and the lower splint B.
Furthermore, four spiral springs are arranged on the periphery of the bowl-shaped metal rubber, and each spiral spring is coaxial with one diagonal of the shell.
Furthermore, a fixed interface is arranged on the base, and an interface used for connecting equipment is arranged at the outer end of the connecting arm.
Compared with the prior art, the invention has the following beneficial effects: the metal rubber and the spiral spring are used as core vibration damping elements, so that the problem that the traditional rubber vibration damper in the prior art cannot normally work for a long time in a complex environment is solved; the same-magnitude rigidity vibration reduction and larger displacement compensation of the vibration absorber in the length direction, the width direction and the height direction can be realized; the up-down symmetrical structure in the shock absorber enables the shock absorber to simultaneously meet the requirements of pressure-bearing installation and hoisting, and the application occasion is wider.
Drawings
Fig. 1 is a schematic view of the overall structure of a shock absorber.
FIG. 2 is an internal cross-sectional view of the shock absorber.
Fig. 3 is a schematic structural view of a coil spring.
In the figure: 1-a shell; 2-bowl-shaped metal rubber; 3-locking the gasket; 4-fastening bolt a; 5-ball joint a; 6-a coil spring; 7-ball joint B; 8-universal connecting shaft sleeve; 9-a fixed interface; 10-a base; 11-splint A; 12-splint B; 13-fastening bolt B; 14-a support; 15-a linker arm; 16-locking bolts of the shell and the base.
Detailed Description
The invention is further explained below with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1-3, a three-way same-magnitude stiffness and displacement compensated damping vibration absorber includes a base 10, a housing 1, and a support 14, wherein the housing is covered and fixed on the base, the support is disposed in the housing, the middle of the upper side of the support extends upward to form a connecting arm 15, the middle of the upper surface of the housing is provided with a through hole for extending the outer end of the connecting arm, a vibration damping assembly is disposed in the housing, and the support is connected with the housing via the vibration damping assembly;
the vibration damping assembly comprises two vibration damping units which are symmetrically arranged up and down, and the vibration damping unit at the upper side is sleeved on the connecting arm;
the damping unit comprises bowl-shaped metal rubber 2 and helical springs 6 which are obliquely arranged and circumferentially and uniformly distributed on the periphery of the bowl-shaped metal rubber, the supporting body is clamped between the upper bowl-shaped metal rubber and the lower bowl-shaped metal rubber, the inner ends of the helical springs are hinged with the inner ends of the bowl-shaped metal rubber through spherical universal joints A5, the outer ends of the helical springs are connected with universal connecting shaft sleeves 8 through spherical universal joints B7, the universal connecting shaft sleeves on the upper side and the lower side are respectively fixed on the shell and the base, and the three-way damping energy dissipation damping vibration attenuation and displacement compensation functions of the damper are jointly realized through the cooperation of the helical springs and the bowl-shaped metal rubber;
the spherical universal joint A is sleeved at the inner end of the spiral spring and fixedly installed at the outer end of the spiral spring.
In this embodiment, the outer end of the bowl-shaped metal rubber is provided with an outer flange, the bowl-shaped metal rubber is sleeved with a locking gasket 3 for pressing and fixing the outer flange, and the locking gaskets on the upper side and the lower side are fixed on the shell and the base through fastening bolts A4 respectively.
In this embodiment, the inner end of the bowl-shaped metal rubber is provided with a clamping plate a11 and a clamping plate B12 which are arranged from outside to inside in sequence, and the ball head part of the ball-shaped universal joint a is clamped between the clamping plate a and the clamping plate B and is in running fit with the clamping plate a and the clamping plate B; the clamping plate A and the clamping plate B are locked by a fastening bolt B13, the supporting body is clamped between the upper clamping plate B and the lower clamping plate B, and the clamping plate A abuts against the inner end of the bowl-shaped metal rubber.
In this embodiment, ball joint A includes base A, and base A outer end is provided with bulb portion A, and the inner is provided with inserts the post, and the base is established at coil spring inner through inserting the post cover, and the base supports and leans on coil spring inner.
In this embodiment, the ball-and-socket joint B includes a base B, a ball head portion B is provided at an outer end of the base B, and an inner end is fixedly connected with an outer end of the coil spring.
In this embodiment, four coil springs are arranged on the periphery of the bowl-shaped metal rubber, and each coil spring is coaxial with one diagonal of the shell.
In this embodiment, a fixing interface 9 is provided on the base, and an interface for connecting equipment is provided at the outer end of the connecting arm.
When the vibration isolator is used, the interface at the outer end of the connecting arm of the vibration isolator is connected with required vibration isolation equipment, the vibration isolator is connected with an equipment foundation through the fixed interface on the base, and after the vibration isolator is fixed, the vibration isolation device provides equivalent-magnitude rigidity vibration attenuation, damping energy consumption and displacement compensation in three directions of length, width and height under rated load.
The shock absorber is assembled by a spiral spring, a metal rubber damping element and other connecting pieces. The interior of the shock absorber is designed into a vertically symmetrical structure, so that the hoisting and bearing installation can be realized simultaneously, and the pure metal shock absorber can be applied to complex environments such as high and low temperature, damp and hot, irradiation, salt mist, oil mist and the like.
The metal rubber and the metal spring adopted by the shock absorber are used as core shock absorption elements, so that the problem that the traditional rubber shock absorber cannot normally work for a long time in a complex environment in the prior art is solved, the capability of the shock absorber in normal work in the face of the complex environment is improved, and the service cycle of the shock absorber is prolonged.
The vibration absorber can realize the same-order rigidity vibration attenuation and larger displacement compensation of the vibration absorber in the length direction, the width direction and the height direction.
The damper adopts a ball universal joint connected to one end of the spiral spring, thereby avoiding the bending deformation of the spiral spring and enabling the spiral spring to bear axial pressure all the time in work.
The vibration absorber can be used for the vibration absorption of mechanical equipment, is suitable for the field of traditional automobiles, and can be widely applied to the fields with severe working environments, such as spaceflight, navigation, nuclear energy and the like.
If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected may be understood as: a detachable fixed connection (for example using a bolt or screw connection) can also be understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a damping shock absorber of three-dimensional commensuration level rigidity and displacement compensation which characterized in that: the vibration-damping device comprises a base, a shell and a supporting body, wherein the shell is covered and fixed on the base, the supporting body is arranged in the shell, the middle part of the upper side surface of the supporting body extends upwards to form a connecting arm, a through hole for extending the outer end of the connecting arm is formed in the middle part of the upper surface of the shell, a vibration-damping assembly is arranged in the shell, and the supporting body is connected with the shell through the vibration-damping assembly;
the vibration damping assembly comprises two vibration damping units which are symmetrically arranged up and down, and the vibration damping unit at the upper side is sleeved on the connecting arm;
the damping unit comprises bowl-shaped metal rubber and helical springs which are obliquely arranged and are uniformly distributed on the periphery of the bowl-shaped metal rubber, the supporting body is clamped between the upper bowl-shaped metal rubber and the lower bowl-shaped metal rubber, the inner ends of the helical springs are hinged with the inner ends of the bowl-shaped metal rubber through spherical universal joints A, the outer ends of the helical springs are connected with universal connecting shaft sleeves through spherical universal joints B, and the universal connecting shaft sleeves on the upper side and the lower side are respectively fixed on the shell and the base;
the spherical universal joint A is sleeved at the inner end of the spiral spring and fixedly installed at the outer end of the spiral spring.
2. The three-way commensurable stiffness and displacement compensated damping shock absorber of claim 1, wherein: the outer end of the bowl-shaped metal rubber is provided with an outer flange, a locking gasket for pressing and fixing the outer flange is sleeved on the bowl-shaped metal rubber, and the locking gaskets on the upper side and the lower side are fixed on the shell and the base through fastening bolts A respectively.
3. The three-way commensurable stiffness and displacement compensated damping shock absorber of claim 1, wherein: the inner end of the bowl-shaped metal rubber is provided with a clamping plate A and a clamping plate B which are sequentially arranged from outside to inside, and the ball head part of the spherical universal joint A is clamped between the clamping plate A and the clamping plate B and is in rotating fit with the clamping plate A and the clamping plate B; the splint A and the splint B are locked by the fastening bolt B, and the support body is clamped between the upper splint B and the lower splint B.
4. The three-way commensurable stiffness and displacement compensated damping shock absorber of claim 1, wherein: four spiral springs are arranged on the periphery of the bowl-shaped metal rubber, and each spiral spring is coaxial with one diagonal of the shell.
5. The three-way commensurable stiffness and displacement compensated damping shock absorber of claim 1, wherein: a fixed interface is arranged on the base, and an interface used for connecting equipment is arranged at the outer end of the connecting arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625717.0U CN214945975U (en) | 2021-03-29 | 2021-03-29 | Damping shock absorber with three-way same-order stiffness and displacement compensation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120625717.0U CN214945975U (en) | 2021-03-29 | 2021-03-29 | Damping shock absorber with three-way same-order stiffness and displacement compensation |
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| Publication Number | Publication Date |
|---|---|
| CN214945975U true CN214945975U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120625717.0U Expired - Fee Related CN214945975U (en) | 2021-03-29 | 2021-03-29 | Damping shock absorber with three-way same-order stiffness and displacement compensation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163731A (en) * | 2022-09-07 | 2022-10-11 | 常州市中昊轨道交通科技发展有限公司 | Multidirectional damping device for metal framework |
-
2021
- 2021-03-29 CN CN202120625717.0U patent/CN214945975U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163731A (en) * | 2022-09-07 | 2022-10-11 | 常州市中昊轨道交通科技发展有限公司 | Multidirectional damping device for metal framework |
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Granted publication date: 20211130 |