CN112922996A - Three-way same-magnitude rigidity and displacement compensation damping shock absorber and working method - Google Patents

Three-way same-magnitude rigidity and displacement compensation damping shock absorber and working method Download PDF

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Publication number
CN112922996A
CN112922996A CN202110330470.4A CN202110330470A CN112922996A CN 112922996 A CN112922996 A CN 112922996A CN 202110330470 A CN202110330470 A CN 202110330470A CN 112922996 A CN112922996 A CN 112922996A
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China
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base
shock absorber
bowl
shaped metal
displacement compensation
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CN202110330470.4A
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陈小超
陈雄雄
任子林
吴章斌
薛新
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Fuzhou University
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Fuzhou University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F7/00Vibration-dampers; Shock-absorbers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2224/00Materials; Material properties
    • F16F2224/02Materials; Material properties solids
    • F16F2224/025Elastomers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)

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, 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

Three-way same-magnitude rigidity and displacement compensation damping shock absorber and working method
Technical Field
The invention relates to a damping shock absorber with three-direction equivalent-level rigidity and displacement compensation and a working method.
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 the above, the present invention provides a damping vibration absorber with three-directional equivalent stiffness and displacement compensation and a working method thereof, aiming at the problem 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 circumferentially and uniformly distributed on the periphery of the bowl-shaped metal rubber, the supporting body is fixedly 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.
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.
Further, 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.
Further, the ball-shaped universal joint A comprises a base A, a ball head portion A is arranged at the outer end of the base A, an inserting column is arranged at the inner end of the base A, the base is sleeved at the inner end of the spiral spring through the inserting column, and the base abuts against the inner end of the spiral spring.
Furthermore, ball universal joint B includes base B, and base B outer end is provided with bulb portion B, and the inner is connected with coil spring outer end fixed connection.
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.
A working method of a damping shock absorber with three-direction equivalent-level rigidity and displacement compensation comprises the following steps: the vibration isolator is connected with required vibration isolation equipment through an interface at the outer end of a connecting arm of the vibration isolator, the vibration isolator is connected with an equipment foundation through a fixed interface on a base, and after the vibration isolator is fixed, equivalent-magnitude rigidity vibration attenuation, damping energy consumption and displacement compensation in three directions of length, width and height are provided for the equipment under rated load.
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, helical springs 6 which are obliquely arranged and are uniformly distributed on the peripheries of the bowl-shaped metal rubber, a 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 and displacement compensation functions of the damper are jointly realized through the cooperation of the helical springs and the.
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 the 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.
A working method of a damping shock absorber with three-direction equivalent-level rigidity and displacement compensation comprises the following steps: the vibration isolator is connected with required vibration isolation equipment through an interface at the outer end of a connecting arm of the vibration isolator, the vibration isolator is connected with an equipment foundation through a fixed interface on a base, and after the vibration isolator is fixed, equivalent-magnitude rigidity vibration attenuation, damping energy consumption and displacement compensation in three directions of length, width and height are provided for the equipment 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 (8)

1.一种三向同量级刚度及位移补偿的阻尼减振器,其特征在于:包括底座、壳体、支撑体,所述壳体罩设固定在底座上,支撑体设置在壳体内,支撑体上侧面中部向上延伸形成连接臂,壳体上表面中部设置有供连接臂外端伸出的通孔,壳体内设置有减振组件,支撑体经减振组件与壳体相连接;1. a damping shock absorber of three-way same magnitude rigidity and displacement compensation, it is characterized in that: comprise base, shell, support body, described shell cover is arranged and fixed on base, support body is arranged in shell, The middle part of the upper side of the support body extends upward to form a connecting arm, the middle part of the upper surface of the casing is provided with a through hole for the outer end of the connecting arm to extend, a damping assembly is arranged in the casing, and the supporting body is connected with the casing through the damping assembly; 所述减振组件包括上下对称设置的两个减振单元,上侧的减振单元套设在连接臂上;The damping assembly includes two damping units arranged symmetrically up and down, and the damping unit on the upper side is sleeved on the connecting arm; 所述减振单元包括碗形金属橡胶、斜置的圆周均布在碗形金属橡胶外周的螺旋弹簧,支撑体夹固在上下两个碗形金属橡胶之间,螺旋弹簧内端经球形万向节A与碗形金属橡胶内端铰接,螺旋弹簧外端经球形万向节B连接万向连接轴套,上下侧的万向连接轴套分别固定在壳体和底座上。The vibration damping unit includes a bowl-shaped metal rubber and a spiral spring whose circumference is evenly distributed on the outer circumference of the bowl-shaped metal rubber. The support body is clamped between the upper and lower bowl-shaped metal rubbers. Section A is hinged with the inner end of the bowl-shaped metal rubber, and the outer end of the coil spring is connected to the universal connection shaft sleeve through the spherical universal joint B, and the upper and lower universal connection shaft sleeves are respectively fixed on the shell and the base. 2.根据权利要求1所述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:所述碗形金属橡胶外端设置有外凸缘,碗形金属橡胶上套设有压固外凸缘的锁紧垫片,上下侧的锁紧垫片分别经紧固螺栓A固定在壳体和底座上。2 . The damping shock absorber with the same magnitude of stiffness in three directions and displacement compensation according to claim 1 , wherein the outer end of the bowl-shaped metal rubber is provided with an outer flange, and the bowl-shaped metal rubber is sleeved with an outer flange. 3 . The locking washers of the outer flange are pressed, and the locking washers on the upper and lower sides are respectively fixed on the casing and the base by the fastening bolts A. 3.根据权利要求1述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:所述碗形金属橡胶内端设置有由外至内依次设置的夹板A、夹板B,球形万向节A的球头部夹固在夹板A、夹板B之间并与转动配合;夹板A、夹板B经紧固螺栓B锁固,支撑体夹固在上下两夹板B之间。3. The damping shock absorber of three-dimensional same magnitude stiffness and displacement compensation according to claim 1, characterized in that: the inner end of the bowl-shaped metal rubber is provided with a plywood A and a plywood B sequentially arranged from outside to inside, The ball head of the spherical universal joint A is clamped between the splint A and the splint B and cooperates with the rotation; the splint A and the splint B are locked by the fastening bolt B, and the support body is clamped between the upper and lower splint B. 4.根据权利要求1所述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:所述球形万向节A包括基座A,基座A外端设置有球头部A,内端设置有插柱,基座经插柱套设在螺旋弹簧内端,基座抵靠螺旋弹簧内端。4. The damping shock absorber with the same magnitude of stiffness in three directions and displacement compensation according to claim 1, wherein the spherical universal joint A comprises a base A, and the outer end of the base A is provided with a ball head A, the inner end is provided with a post, the base is sleeved on the inner end of the coil spring through the post, and the base abuts against the inner end of the coil spring. 5.根据权利要求1所述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:所述球形万向节B包括基座B,基座B外端设置有球头部B,内端与螺旋弹簧外端固定连接。5. The damping shock absorber with three-direction equal-order stiffness and displacement compensation according to claim 1, wherein the spherical universal joint B comprises a base B, and the outer end of the base B is provided with a ball head B, the inner end is fixedly connected with the outer end of the coil spring. 6.根据权利要求1所述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:所述碗形金属橡胶外周设置四个螺旋弹簧,各个螺旋弹簧分别与壳体的一个对角线同轴心。6 . The damping shock absorber with the same magnitude of stiffness and displacement compensation in three directions according to claim 1 , wherein four coil springs are arranged on the outer periphery of the bowl-shaped metal rubber, and each coil spring is respectively connected to one of the shells. 7 . Diagonal lines are concentric. 7.根据权利要求1所述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:所述底座上开设有固定接口,连接臂外端设置有用于连接设备的接口。7 . The damping shock absorber with three-direction equal-order stiffness and displacement compensation according to claim 1 , wherein the base is provided with a fixed interface, and the outer end of the connecting arm is provided with an interface for connecting equipment. 8 . 8.一种三向同量级刚度及位移补偿的阻尼减振器的工作方法,采用如权利要求8所述的三向同量级刚度及位移补偿的阻尼减振器,其特征在于:通过减振器的连接臂外端的接口与所需隔振设备相连,并通过底座上的固定接口将减振器与设备地基相连,固定好减振器之后,在额定载荷下对设备提供长宽高三个方向的同量级刚度减振和阻尼耗能以及位移补偿。8. A working method of the damping shock absorber of three-way same magnitude stiffness and displacement compensation, adopting the damping shock absorber of three-way same magnitude stiffness and displacement compensation as claimed in claim 8, it is characterized in that: by The interface at the outer end of the connecting arm of the shock absorber is connected to the required vibration isolation equipment, and the shock absorber is connected to the equipment foundation through the fixed interface on the base. The same magnitude of stiffness vibration reduction and damping energy dissipation and displacement compensation in each direction.
CN202110330470.4A 2021-03-29 2021-03-29 Three-way same-magnitude rigidity and displacement compensation damping shock absorber and working method Pending CN112922996A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113864385A (en) * 2021-08-18 2021-12-31 北京强度环境研究所 Acceleration sensor vibration damper and high-speed rail
CN113944721A (en) * 2021-10-18 2022-01-18 中国科学院长春光学精密机械与物理研究所 An omnidirectional vibration isolator
CN113983117A (en) * 2021-11-12 2022-01-28 福州大学 Three-way vibration damping mechanism and its working method
CN114688180A (en) * 2022-03-29 2022-07-01 内蒙古工业大学 A curved metal-rubber torsional shock absorber driven disc assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113864385A (en) * 2021-08-18 2021-12-31 北京强度环境研究所 Acceleration sensor vibration damper and high-speed rail
CN113944721A (en) * 2021-10-18 2022-01-18 中国科学院长春光学精密机械与物理研究所 An omnidirectional vibration isolator
CN113983117A (en) * 2021-11-12 2022-01-28 福州大学 Three-way vibration damping mechanism and its working method
CN113983117B (en) * 2021-11-12 2024-03-01 福州大学 Three-way vibration reduction mechanism and working method thereof
CN114688180A (en) * 2022-03-29 2022-07-01 内蒙古工业大学 A curved metal-rubber torsional shock absorber driven disc assembly

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