CN112064495A - Damping support - Google Patents
Damping support Download PDFInfo
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- CN112064495A CN112064495A CN202011007380.3A CN202011007380A CN112064495A CN 112064495 A CN112064495 A CN 112064495A CN 202011007380 A CN202011007380 A CN 202011007380A CN 112064495 A CN112064495 A CN 112064495A
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- elastic body
- support plate
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- damping
- support
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
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Abstract
The invention belongs to the technical field of supports, and particularly relates to a damping support. The elastic support comprises a support plate I, a support plate II, an elastic body I and an elastic body II, wherein two ends of the elastic body I are respectively fixedly connected with the support plate I and the support plate II; an elastic body II is arranged outside the elastic body I and fixedly connected with a support plate II, and a kinematic pair is formed between the elastic body II and the support plate I; and the first support plate is provided with a limiting mechanism which is used for limiting the limit position of the two elastomers sliding relative to the first support plate. The first elastic body and the second elastic body are arranged to be matched for damping, so that the device can be suitable for damping vibration force in a large range.
Description
Technical Field
The invention belongs to the technical field of supports, and particularly relates to a damping support.
Background
Recent earthquake disasters show that once an earthquake causes serious damage to a traffic line, possible lives and properties and indirect economic losses are more and more huge. The bridge is used as an important throat of a traffic network, and the anti-seismic performance of the bridge is related to whether the whole traffic life line is smooth or not, so that the speed of anti-seismic disaster relief and post-disaster reconstruction is influenced. Therefore, the study of seismic resistance of bridge structures has been a hot issue of attention of scholars.
The bridge seismic design method goes through the traditional strength seismic theory, ductility seismic theory, seismic reduction and isolation technical theory and other stages. The seismic isolation and reduction technology is a simple, convenient, economical and advanced engineering seismic resistance means. By selecting a proper seismic isolation and reduction device and a proper setting position, the internal force distribution of the structure can be effectively controlled.
The rubber support widely used in the bridge structure at present mainly comprises the following types: pot rubber bearing, lead core rubber bearing, etc.
The basin-type rubber support uses the elastic rubber block in the semi-closed steel basin cavity, has the property of fluid in a three-dimensional stress state, and realizes the rotation of an upper structure; meanwhile, the horizontal displacement of the upper structure is realized by the low friction coefficient between the polytetrafluoroethylene plate on the middle sliding plate II and the stainless sliding plate II on the upper seat plate. But the shock absorption is realized through friction energy consumption, the shock absorption device can only adapt to the earthquake with smaller magnitude of earthquake, and the shock absorption requirement can not be met for the earthquake with larger magnitude of earthquake.
The lead core rubber support is formed by inserting one or more lead zinc into a common plate type rubber support, and the addition of the lead zinc increases the horizontal shearing resistance of the support and also enables the damping performance of the support to be well improved. The lead-zinc rubber support bears vertical load and horizontal load, so that lead and zinc generate hysteresis damping plastic deformation, and horizontal restoring force is provided through rubber. But the horizontal shear resistance of support has been increased in the addition of plumbous zinc, and when at ordinary times on-vehicle atress, because the atress is less, plumbous zinc rubber support is exactly a fixing support this moment, and rubber and plumbous zinc are all fixed, so rubber support can't adapt to the shock attenuation demand when at ordinary times on-vehicle atress.
In conclusion, the rubber support in the prior art does not have the rubber support which can meet the damping requirement of the vehicle-mounted earthquake with the large shock level at ordinary times, so that the damping support is provided.
Disclosure of Invention
The invention provides a damping support, and aims to solve the problem that no rubber support capable of meeting the damping requirement of vehicle-mounted earthquake with large shock level at ordinary times exists in the prior art.
The invention is realized by the following technical scheme:
a shock absorption support comprises a support plate I, a support plate II, an elastic body I) and an elastic body II, wherein two ends of the elastic body I are fixedly connected with the support plate I and the support plate II respectively; an elastic body II is arranged outside the elastic body I and fixedly connected with a support plate II, and a kinematic pair is formed between the elastic body II and the support plate I; and the first support plate is provided with a limiting mechanism which is used for limiting the limit position of the two elastomers sliding relative to the first support plate.
The working principle is as follows: the device is arranged between a pier and a bridge floor, and under the vehicle-mounted condition, the bridge floor can be subjected to slight vibration force, at the moment, the elastic body is subjected to damping deformation, and the damping deformation consumes vibration kinetic energy, so that the bridge floor is kept stable; under the action of other external forces, such as wind load or earthquake, there are two damping modes: the first elastic body deforms and absorbs shock, and the first elastic body and the second elastic body deform and absorb shock together; when the first elastic body and the second elastic body deform and absorb shock together, the first elastic body and the second elastic body both have damping deformation, the damping deformation consumes shock kinetic energy, and the shock absorption effects of the first elastic body and the second elastic body can achieve a superposed effect, so that the shock absorption device can adapt to shock absorption of larger shock force.
Further, the first elastic body is cylindrical.
Further, the second elastic body is in a circular ring shape.
Furthermore, the second elastic body is annular and is arranged outside the first elastic body and has the same circle center with the first elastic body. In the shock absorption process, the stress deformation is uniform, and the stability is better.
Furthermore, the limiting mechanism is an annular boss, and the annular boss is arranged outside the elastic body; or the limiting mechanism is an annular boss, and the annular boss is arranged between the first elastic body and the second elastic body.
Furthermore, a plane sliding friction pair is arranged between the second elastic body and the first support plate.
Furthermore, the plane sliding friction pair is formed by a first sliding plate and a second sliding plate in a contact mode, the second sliding plate is fixedly connected to the first support plate, and the first sliding plate is movably arranged between the second elastic body and the second sliding plate. And the friction force between the second elastic body and the first support plate is reduced, so that the relative movement between the second elastic body and the first support plate is smoother in the damping process.
Further, the first elastic body and the second elastic body are both made of rubber.
Furthermore, sealing plates are symmetrically arranged on the first elastic body, and two ends of the first elastic body, which are provided with the sealing plates, are respectively connected with the first support plate and the second support plate through fasteners; and/or a sealing plate is arranged on the second elastic body, and one end of the sealing plate arranged on the second elastic body is connected with the second support plate through a fastener.
The connection through the fastener is convenient for assembly, disassembly and replacement.
Further, the first elastic body is connected with the first support plate and the second support plate respectively through vulcanization; and/or the elastomer bi-pass is connected with the second support plate through vulcanization.
Furthermore, a sealing plate on the first elastic body is a limiting mechanism.
By adopting the technical scheme, the invention has the following advantages:
1. the first elastic body and the second elastic body are arranged to be matched for damping, so that the device can be suitable for damping vibration force in a large range.
2. The invention has simple structure, and can reduce production cost by mass production.
3. The elastic body can also have the anti-pulling capacity, so that the anti-pulling elastic rubber has the advantage of anti-pulling.
4. The elastic body is arranged into the first elastic body and the second elastic body, the first elastic body can deform and absorb shock when force is small, the first elastic body can independently absorb shock when force is large, the first elastic body and the second elastic body can deform and absorb shock together with the continuous increase of the force, and the first elastic body and the second elastic body deform together to consume larger vibration kinetic energy, so that a better shock absorption effect is achieved; therefore, the support can be applied to large-range shock absorption.
5. When only the first elastic body deforms and absorbs shock, the two elastic bodies slide relative to the first support plate, and at the moment, friction energy consumption is realized, so that deformation shock absorption and friction shock absorption exist simultaneously in the first elastic body deformation shock absorption process; the superposition of deformation energy consumption and friction energy consumption can consume more vibration kinetic energy, so that the damping effect is better.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first schematic structural diagram of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a first schematic structural diagram according to an embodiment of the present invention;
FIG. 5 is a second schematic structural diagram according to an embodiment of the present invention;
FIG. 6 is a third schematic structural diagram according to an embodiment of the present invention;
FIG. 7 is a fourth schematic structural diagram according to an embodiment of the present invention;
FIG. 8 is a fifth schematic structural view according to an embodiment of the present invention;
FIG. 9 is a sixth schematic structural view of an embodiment of the present invention;
in the drawings: 1. the device comprises a first support plate, a second support plate, a third support plate, a fourth support plate, a fifth support plate, a sixth support plate, a.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, 2 and 3, the invention provides a shock mount, which is characterized in that: the elastic support comprises a support plate I1, a support plate II 2, an elastic body I3 and an elastic body II 4, wherein two ends of the elastic body I3 are respectively fixedly connected with the support plate I1 and the support plate II 2; an elastic body II 4 is arranged outside the elastic body I3, the elastic body II 4 is fixedly connected with the support plate II 2, and a kinematic pair is formed between the elastic body II 4 and the support plate I3; and the limiting mechanism 5 is arranged on the support plate I1, and the limiting mechanism 5 is used for limiting the limit position of the elastic body II 4 sliding relative to the support plate I1.
It should be noted that, in the initial state, the first elastic body 3 is not in contact with the second elastic body 4, and the second elastic body 4 is not in contact with the limiting mechanism 5, so that a sliding space is provided for the second elastic body 4 when the first elastic body 3 deforms; in a similar way, the second elastic body 4 is not contacted with the limiting mechanism 5, and a sliding space is provided for the sliding of the second elastic body 4.
The working principle is as follows: the device is arranged between a pier and a bridge floor, the bridge floor can be subjected to slight vibration force under the vehicle-mounted condition, at the moment, the first elastic body 3 is subjected to damping deformation, and the damping deformation consumes vibration kinetic energy, so that the bridge floor is kept stable; under the action of other external forces, such as wind load or earthquake, there are two damping modes: (1) the first elastic body 3 deforms and absorbs shock, (2) the first elastic body 3 and the second elastic body 4 deform and absorb shock together; when the first elastic body 3 and the second elastic body 4 deform and absorb shock together, the first elastic body 3 and the second elastic body 4 both have damping deformation, the damping deformation consumes shock kinetic energy, and the shock absorption effects of the first elastic body 3 and the second elastic body 4 can achieve a superposed effect, so that the shock absorption device can adapt to shock absorption of larger shock force.
It should be noted that, in the prior art, if an elastic body with large damping is directly arranged, under the condition of normal vehicle-mounted, because the force is too small, the elastic body with large damping cannot deform and absorb shock, for example, if an elastic body with small damping is arranged, when the wind load and the earthquake force are large, the vibration kinetic energy consumed by the deformation of the elastic body with small damping is small, and the shock absorption effect is poor.
The elastic body is arranged into the elastic body I3 and the elastic body II 4, when the force is small, the elastic body I3 can deform and absorb shock, when the force is large, the elastic body I3 can independently absorb shock, along with the continuous increase of the force, the elastic body I3 and the elastic body II 4 can deform and absorb shock together, and the elastic body I3 and the elastic body II 4 deform together, so that larger shock kinetic energy can be consumed, and a better shock absorption effect is achieved; therefore, the support can be applied to large-range shock absorption.
The deformation process of the first elastic body 3 and the second elastic body 4 will now be described in detail:
1. as shown in fig. 4, when the first elastic body 3 is subjected to a deformation force (i.e., the first elastic body 3 deforms to meet the requirement for shock absorption), the deformation displacement of the first elastic body 3 is e1, the first support plate 1 and the second elastic body 4 slide to the limit positions (i.e., the second elastic body 4 contacts the limiting mechanism 5), and the limiting mechanism 5 limits the sliding of the second elastic body 4 relative to the first support plate 1; at the moment, the elastic body II 4 and the elastic body I3 provide damping deformation to consume vibration kinetic energy, and the process is primary deformation;
2. as shown in fig. 5, after the deformation displacement of the first elastic body 3 reaches e1, the first elastic body 3 and the second elastic body 4 deform together, the deformation displacement of the second elastic body 4 is e2, and the deformation displacement of the first elastic body 3 is e1+ e2, at this time, the second elastic body 4 and the first elastic body 3 provide damping consumption vibration dynamic capacity together, and the process is secondary deformation;
3. as shown in fig. 6, the first elastic body 3 and the second elastic body 4 continue to deform until reaching the limit range of the first elastic body 3, the deformation value is e3, and until reaching the limit range of the first elastic body 3, the deformation displacement of the first elastic body 3 is e1+ e2+ e3, the deformation displacement of the second elastic body 4 is e2+ e3, the second elastic body 4 and the first elastic body 3 jointly provide damping to dissipate the vibration kinetic energy, and the process is three-stage deformation.
Wherein the damping deformation of the first elastic body 3 needs to be larger than the damping deformation of the second elastic body 4, then:
the deformability of the first elastic body 3 is greater than that of the second elastic body 4, and when the first elastic body 3 reaches the deformation limit, the second elastic body 4 simultaneously reaches the deformation limit, and the optimal matching mode of the first elastic body 3 and the second elastic body 4 is realized;
of course, the first elastic body 3 and the second elastic body 4 are not necessarily in the matching mode, the deformability of the first elastic body 3 is equal to that of the second elastic body 4, and the deformability of the first elastic body 3 is smaller than that of the second elastic body 4.
However, the damping of the first elastic body 3 cannot be excessive, and the deformation with a small vibration force, such as that of a vehicle, needs to be satisfied.
In a preferred embodiment of the present invention, further, the first elastic body 3 is cylindrical.
Further, the second elastic body 4 is in a circular ring shape.
Furthermore, the elastic body two 4 is a circular ring, and the elastic body two 4 is arranged outside the elastic body one 3 and is concentric with the elastic body one 3. In the shock absorption process, the stress deformation is uniform, and the stability is better.
In an embodiment of the present invention, further, the limiting mechanism 5 is an annular boss, and the annular boss is disposed outside the elastic body two 4;
in an embodiment of the present invention, as shown in fig. 8, further, the limiting mechanism 5 is an annular boss, and the annular boss is disposed between the first elastic body 3 and the second elastic body 4.
In another embodiment of the present invention, the first elastic body 3 may be a rectangular parallelepiped or a cube, the second elastic body 4 is a rectangular ring, and the limiting mechanism 5 is a rectangular ring.
In other embodiments, the limit mechanism 5 may also be a limit stop, for example, when the second elastic body 4 is circular, a plurality of limit stops may be disposed around the outside of the second elastic body 4.
Of course, the structures of the first elastic body 3, the second elastic body 4 and the limiting mechanism 5 are only examples, but not limited to the structures.
Furthermore, a plane sliding friction pair is arranged between the second elastic body 4 and the first support plate 1.
Furthermore, the plane sliding friction pair is formed by a first sliding plate 6 and a second sliding plate 7 in a contact mode, the second sliding plate 7 is fixedly connected to the first support plate 1, and the first sliding plate 6 is movably arranged between the second elastic body 4 and the second sliding plate 7. The friction force between the second elastic body 4 and the first support plate 1 is reduced, so that the relative movement between the second elastic body 4 and the first support plate 1 is smoother in the damping process.
The size and the shape of the first sliding plate 6 and the second sliding plate 7 are preferably set corresponding to the shape and the size of the second elastic body 4; if the elastic body II 4 is in a circular ring shape, the sliding plate I6 and the sliding plate II 7 can be in a circular ring shape.
Wherein the first sliding plate 6 and the second sliding plate 7 can be made of steel plates.
Further, the first elastic body 3 and the second elastic body 4 are both made of rubber.
Further, the elastic body I3 is connected with the support plate I1 through a fastener 8, and the elastic body II 4 is connected with the support plate II 2 through a fastener 8. Is convenient for assembly, disassembly and replacement.
In an embodiment of the present invention, as shown in fig. 7, further, sealing plates 9 are symmetrically disposed on the elastic body one 3, and two ends of the elastic body one 3, on which the sealing plates 9 are disposed, are respectively connected to the support plate one 1 and the support plate two 2 through fasteners 8; and/or a sealing plate 9 is arranged on the second elastic body 4, and one end of the sealing plate 9 arranged on the second elastic body 4 is connected with the second support plate 2 through a fastener 8.
Wherein elastomer one 3 connects shrouding 9 accessible vulcanization and connects, and in the same way, elastomer two 4 connects shrouding 9 also can connect through vulcanization.
The fastening piece 8 can be a screw, and the nut of the screw cannot exceed the surfaces of the first elastic body 3 and the second elastic body 4, so that the level of the surfaces of the first elastic body 3 and the second elastic body 4 is ensured; the connection by the fastener 8 facilitates assembly, disassembly and replacement.
Further, the elastic body I3 is connected with the support plate I1 and the support plate II 2 respectively through vulcanization; and/or the second elastomer 4 is connected with the second support plate 2 through vulcanization.
Further, the closing plate 9 on the first elastic body 3 is a limiting mechanism.
As shown in fig. 9, since the sealing plate 9 is provided on the first elastic body, the sealing plate 9 can be used as a limiting mechanism, and the limiting mechanism 5 does not need to be additionally provided; of course, the limiting mechanism 5 may be additionally provided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A shock mount which characterized in that: the elastic support comprises a support plate I (1), a support plate II (2), an elastic body I (3) and an elastic body II (4), wherein two ends of the elastic body I (3) are respectively and fixedly connected with the support plate I (1) and the support plate II (2); an elastic body II (4) is arranged outside the elastic body I (3), the elastic body II (4) is fixedly connected with a support plate II (2), and a kinematic pair is formed between the elastic body II (4) and the support plate I (3); and the limiting mechanism (5) is arranged on the support plate I (1), and the limiting mechanism (5) is used for limiting the limit position of the elastic body II (4) sliding relative to the support plate I (1).
2. A vibration mount as defined in claim 1, wherein: the first elastic body (3) is cylindrical.
3. A vibration mount as defined in claim 1, wherein: the second elastic body (4) is in a circular ring shape.
4. A vibration mount as defined in claim 2, wherein: the second elastic body (4) is annular, and the second elastic body (4) is arranged outside the first elastic body (3) and is concentric with the first elastic body (3).
5. A vibration mount as claimed in claim 3 or 4 wherein: the limiting mechanism (5) is an annular boss, and the annular boss is arranged outside the second elastic body (4);
or the limiting mechanism (5) is an annular boss, and the annular boss is arranged between the first elastic body (3) and the second elastic body (4).
6. A vibration mount as defined in claim 1, wherein: and a plane sliding friction pair is arranged between the second elastic body (4) and the first support plate (1).
7. A shock mount as set forth in claim 6 wherein: the plane sliding friction pair is formed by a first sliding plate (6) and a second sliding plate (7) in a contact mode, the second sliding plate (7) is fixedly connected to the first support plate (1), and the first sliding plate (6) is movably arranged between the second elastic body (4) and the second sliding plate (7).
8. A vibration mount as defined in claim 1, wherein: the first elastic body (3) and the second elastic body (4) are both made of rubber.
9. A vibration mount as defined in claim 1, wherein: sealing plates (9) are symmetrically arranged on the first elastic body (3), and two ends of the first elastic body (3) provided with the sealing plates (9) are respectively connected with the first support plate (1) and the second support plate (2) through fasteners (8); and/or a sealing plate (9) is arranged on the second elastic body (4), and one end of the sealing plate (9) arranged on the second elastic body (4) is connected with the second support plate (2) through a fastener (8).
10. A vibration mount as defined in claim 1, wherein: and a sealing plate (9) on the elastic body I (3) is a limiting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007380.3A CN112064495A (en) | 2020-09-23 | 2020-09-23 | Damping support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011007380.3A CN112064495A (en) | 2020-09-23 | 2020-09-23 | Damping support |
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| CN112064495A true CN112064495A (en) | 2020-12-11 |
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| KR20100050437A (en) * | 2009-11-09 | 2010-05-13 | 주식회사 부흥시스템 | Elastic gum support of a bridge |
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Application publication date: 20201211 |
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