CN110485280B - Hyperboloid ball-type shock-absorbing and isolating support with displacement locking function - Google Patents
Hyperboloid ball-type shock-absorbing and isolating support with displacement locking function Download PDFInfo
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- CN110485280B CN110485280B CN201910726404.1A CN201910726404A CN110485280B CN 110485280 B CN110485280 B CN 110485280B CN 201910726404 A CN201910726404 A CN 201910726404A CN 110485280 B CN110485280 B CN 110485280B
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 44
- 238000002955 isolation Methods 0.000 claims description 22
- 230000009467 reduction Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000013016 damping Methods 0.000 abstract 2
- 230000035939 shock Effects 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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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
-
- 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
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The bearing also comprises a displacement locking component, wherein the displacement locking component comprises at least one upper clamping groove which is arranged on the lower surface of the top seat plate and penetrates through the side surface of the top seat plate, at least two lower clamping grooves which are arranged on the upper surface of the upper seat plate, and a clamping block which extends out of the bearing from a through hole of the upper clamping groove, the clamping block consists of a clamping block body and a clamping block unlocking rod which are connected into a whole, the bottom surface of the clamping block unlocking rod is higher than the bottom surface of the clamping block body, the top surface of the clamping block unlocking rod is lower than or equal to the top surface of the clamping block body, the earthquake lower plane slides to the position of normal temperature rise maximum displacement, the clamping block falls into the lower clamping grooves due to gravity, a plane friction pair is locked, the bearing transmits horizontal force to the limiting plate, and the bearing always plays a role of damping and isolating function in a hyperboloid sliding mode after the limiting plate is damaged, so that the damping and isolating effects of the longitudinal bridge of the bearing are improved; after an earthquake, the clamping blocks can be unlocked, and the normal function of the support is recovered.
Description
Technical Field
The invention belongs to the technical field of bridge structures or buildings, and relates to a hyperboloid spherical seismic reduction and isolation support with a displacement locking function.
Background
Hyperboloid ball-type shock absorbing and isolating supports currently in wide use for seismic area railroad bridges generally comprise a planar friction pair and two spherical friction pairs. The structure is characterized in that the longitudinal bridge of the support realizes planar sliding under normal temperature rise, so that the beam body is not lifted, and the smoothness requirement of the bridge track is ensured; under an earthquake, the longitudinal bridge direction of the support is realized by alternately sliding on a plane and sliding on a hyperboloid all the time, wherein the sliding process of the hyperboloid of the support is the vibration reduction and insulation process of the support. For a simply supported beam bridge, the temperature rise displacement of the support is small, the proportion of the planar sliding of the support to the total sliding distance is low, and the influence of the shock absorption and insulation performance of the longitudinal bridge to the support is small; however, when the temperature rise displacement is larger, the proportion of the plane sliding of the support to the total sliding distance is higher in an earthquake, and even the phenomenon that the plane sliding displacement exceeds the hyperboloid sliding displacement occurs, so that the vibration reduction and insulation effect of the support in the longitudinal bridge direction is reduced to a certain extent.
The speed locking type seismic reduction and isolation support can well solve the problems, when an earthquake occurs, the speed is rapidly increased, the speed locker locks the plane friction pair, horizontal force is transmitted to shear the support limiting device, and the support only slides in a hyperboloid manner, so that a good seismic reduction and isolation effect is achieved. But the speed locker is added on the basis of the hyperboloid spherical seismic reduction and isolation support, the support structure is large in size and high in cost.
The patent ZL201510488281.4 discloses a shock absorption and isolation support of a displacement locking device, which adopts a locking and ejecting mechanism to realize locking at the limit displacement of planar sliding, and the seismic lower support only slides in hyperboloid. However, the spring element is at risk of failure due to the fact that the ejection mechanism is in a compressed state for a long time, so that the stop block cannot be ejected under an earthquake.
Disclosure of Invention
In order to solve the technical problems, the invention provides the hyperboloid spherical seismic reduction and isolation support with the displacement locking function, the lower plane of the earthquake slides to the position of the maximum displacement of normal temperature rise, the clamping block is sunk into the lower clamping groove due to gravity, the plane friction pair is locked, the support transmits horizontal force to the limiting plate, and after the limiting plate is damaged, the support always slides in a hyperboloid manner to play the role of the seismic reduction and isolation function, so that the seismic reduction and isolation effect of the longitudinal bridge direction of the support is improved; after an earthquake, the clamping blocks can be unlocked, and the normal function of the support is recovered.
In order to achieve the technical purpose, the adopted technical scheme is as follows: the utility model provides a hyperboloid ball-type shock attenuation and isolation support with displacement locking function, including the top bedplate, the upper saddle, well bedplate, lower saddle, limiting plate, top bedplate, upper saddle, well bedplate and lower saddle are from top to bottom set gradually, the lower surface of top bedplate and the upper surface of upper saddle are the plane, be equipped with the plane friction pair between the lower surface of top bedplate and the upper surface of upper saddle, the horizontal bridge of top bedplate is equipped with the permanent dog that carries out horizontal spacing to the upper portion of upper saddle to both sides, the lower surface of upper saddle and the upper surface of lower saddle are the sphere, be equipped with the well bedplate that upper and lower surfaces are the sphere in the space that upper saddle and lower saddle enclose, be equipped with the sphere friction pair between the lower surface of upper saddle and the upper surface of well bedplate, be equipped with the sphere friction pair down between the upper surface of lower saddle and the lower surface of well bedplate, the limit plate that is cut after the shake is fixed with to both sides to the longitudinal, the limiting plate corresponds the lower side of upper saddle and sets up;
the support is characterized in that the support further comprises a displacement locking component arranged between the top seat plate and the upper seat plate, the displacement locking component comprises at least one upper clamping groove which is formed in the lower surface of the top seat plate and penetrates through the side surface of the top seat plate, at least two lower clamping grooves formed in the upper surface of the upper seat plate, and a clamping block which extends out of the support from a through hole of the upper clamping groove, the clamping block consists of a clamping block body and a clamping block unlocking rod which are connected into a whole, the bottom surface of the clamping block unlocking rod is higher than the bottom surface of the clamping block body, the top surface of the clamping block unlocking rod is lower than or equal to the top surface of the clamping block body, the upper clamping groove and the lower clamping groove are arranged along the transverse bridge direction and are formed in the outer side of the planar friction pair, the center distance between the upper clamping groove and the lower clamping groove on the same side is the normal temperature rise maximum displacement of the support, under normal conditions, the lower surface of the clamping block body falls on the upper surface of the upper seat plate, the clamping block moves along with the upper clamping groove in the upper seat plate, and the clamping block falls into the upper clamping groove in the upper clamping seat plate when the displacement of the top seat plate and the upper seat plate reaches the maximum displacement of the clamping block body on the upper seat plate.
A guide sliding plate is arranged between the permanent stop block and the upper part of the upper seat plate.
A guiding sliding plate is arranged between the limiting plate and the lower part of the upper seat plate.
The invention has the beneficial effects that: according to the hyperboloid spherical seismic reduction and isolation support with the displacement locking function, the upper clamping groove and the clamping block are arranged on the bottom surface of the top seat plate, and the lower clamping groove is arranged on the upper seat plate, so that the locking and the unlocking of the support plane friction pair after the earthquake can be realized. During normal operation, the spherical friction pair of the support is restrained by the peripheral limiting plates, only the plane friction pair between the top seat plate and the upper seat plate can horizontally slide, the normal sliding of the support can not bring about the lifting of the beam body, and the normal running stability requirement of the bridge is met; when an earthquake occurs, the plane friction pair of the support slides firstly, if the plane friction pair slides to the position of the maximum displacement of normal temperature rise, the clamping block falls into the lower clamping groove due to gravity, the plane friction pair is locked, the support transmits horizontal force to the limiting plate, after the limiting plate is destroyed, the horizontal sliding constraint of the two spherical friction pairs is relieved, the support realizes horizontal reciprocating sliding through the double spherical surface synthesis effect of the upper seat plate, the middle seat plate and the lower seat plate, in the reciprocating sliding process, the earthquake energy is dissipated through the friction resistance of the sliding surface, the self-vibration period of the structure is prolonged, and the earthquake reduction and isolation effects are achieved. In the process, the support plane friction pair is locked by the clamping block and does not participate in the shock absorption and insulation sliding, the support always slides by the double spherical surfaces, and the double spherical surfaces and the plane are not mutually slid, so that the shock absorption and insulation effect of the longitudinal bridge direction of the support is improved. After an earthquake, the component force of the dead weight of the upper structure of the support along the curved surface direction is used as a restoring force to restore the support. Meanwhile, after an earthquake, the clamping block is lifted upwards manually through the clamping block unlocking rod to be completely separated from the lower clamping groove of the upper seat plate, so that unlocking of the plane friction pair is realized, and finally, the plane friction pair of the support is pushed by the jack to restore to the center position.
Drawings
FIG. 1 is a schematic view of a transverse bridge structure in an embodiment of the invention;
FIG. 2 is a cross-sectional view of A-A of the structure of embodiment 1 of the present invention;
FIG. 3 is a cross-sectional view of A-A of the structure of embodiment 2 of the present invention;
FIG. 4 is a cross-sectional view of A-A of the structure of embodiment 3 of the present invention;
FIG. 5 is a B-B sectional view of the structure of embodiment 1 of the present invention;
FIG. 6 is a cross-bridge top view showing the structure of the top chassis 1 in embodiment 1 of the present invention;
FIG. 7 is a sectional view of the top chassis 1 in the embodiment 1 of the present invention;
FIG. 8 is a schematic diagram of a latch according to an embodiment of the present invention;
FIG. 9 is a schematic view showing the structure of a plane friction pair in the "locked" state in embodiment 1 of the present invention;
FIG. 10 is a schematic view showing the structure of the planar friction pair in the "unlocked" state in embodiment 1 of the present invention;
in the figure: 1. the device comprises a top seat board, 1-1, an upper clamping groove, 1-2, a permanent stop block, 1-1-1, a clamping groove on a clamping block body, 1-1-2, an upper clamping groove of an unlocking rod, 2, a plane friction pair, 3, an upper seat board, 3-1, a lower clamping groove, 4, an upper spherical friction pair, 5, a middle seat board, 6, a lower spherical friction pair, 7, a lower seat board, 8, a clamping block, 8-1, a clamping block body, 8-2, a clamping block unlocking rod, 9 and a limiting plate.
Detailed Description
The utility model provides a hyperboloid ball-type seismic isolation bearing with displacement locking function, including top bedplate 1, upper bedplate 3, well bedplate 5, lower bedplate 7, limiting plate 9, top bedplate 1, upper bedplate 3, well bedplate 5 and lower bedplate 7 set gradually from top to bottom, the lower surface of top bedplate 1 and the upper surface of upper bedplate 3 are the plane, be equipped with plane friction pair 2 between the lower surface of top bedplate 1 and the upper surface of upper bedplate 3, the horizontal bridge of top bedplate 1 is equipped with the permanent dog 1-2 that carries out horizontal spacing to the upper portion of upper bedplate 3 to both sides, top bedplate 1 accessible plane friction pair is on upper bedplate 3 along vertical bridge horizontal migration, the lower surface of upper bedplate 3 and the upper surface of lower bedplate 7 are the sphere, be equipped with the well bedplate 5 that upper and lower surfaces are the sphere in the space that upper bedplate 3 and lower bedplate 7 enclose, be equipped with between the lower surface of upper and the upper surface of upper bedplate 5, be equipped with down the sphere friction pair between the upper surface of lower bedplate 7 and the lower surface of upper bedplate 5, the horizontal bridge both sides is equipped with the permanent dog 1-2 that carries out horizontal spacing to the upper portion of upper bedplate 3, the upper and lower bedplate 9 can not cut at the time when the upper and lower bedplate 7 are rotated to the limiting plate 9 and the limit plate is not cut in the position in the space that the upper bedplate and lower bedplate is located at the side of the upper bedplate and the side of the upper bedplate 9.
The support also comprises a displacement locking component arranged between the top seat plate 1 and the upper seat plate 3, the displacement locking component comprises at least one upper clamping groove 1-1 which is arranged on the lower surface of the top seat plate 1 and penetrates through the side surface of the top seat plate 1, at least two lower clamping grooves 3-1 which are arranged on the upper surface of the upper seat plate 3, and a clamping block 8 which extends out of the support from a through hole of the upper clamping groove 1-1, the clamping block 8 consists of a clamping block body 8-1 and a clamping block unlocking rod 8-2 which are connected into a whole, the bottom surface of the clamping block body 8-2 is higher than the bottom surface of the clamping block body 8-1, the top surface of the clamping block unlocking rod 8-2 is lower than or equal to the top surface of the clamping block body 8-1, the upper clamping groove 1-1 and the lower clamping groove 3-1 are arranged along the transverse bridge direction and are arranged on the outer side of the plane friction pair 2, the upper clamping groove 1-1 and the lower clamping groove 3-1 on the same side are arranged on the upper seat plate 1-1, the upper seat plate and the upper seat plate 1-1 and the lower clamping seat plate-1 are arranged on the upper seat plate-1, the upper seat plate and the upper seat plate-1 and the lower clamping plate-1 are arranged on the upper seat plate-1, the upper seat plate-1 and the lower seat plate-1 are arranged on the upper seat plate-1 and the upper seat plate-1.
The shape of the upper clamping groove 1-1 can be set according to a clamping block, the shape of the upper clamping groove is required to ensure the normal clamping of the clamping block, the shape of the upper clamping groove 1-1-1 of the clamping block body for placing the clamping block body can be designed into a hemispherical shape, a rectangular shape and the like, the shape of the upper clamping groove 1-1-2 of the unlocking rod for placing the clamping block is optimally rectangular, in order to ensure that the clamping block can be dropped or lifted without influencing the clamping of the clamping block body into the lower clamping groove and the upper clamping groove, the bottom surface of the clamping block unlocking rod 8-2 is higher than the bottom surface of the clamping block body 8-1, the top surface of the clamping block unlocking rod 8-2 is lower than or equal to the top surface of the clamping block body 8-1, namely, when the lower part of the clamping block body falls into the lower clamping groove 3-1, the clamping block unlocking rod 8-2 just falls onto the upper surface of the upper seat plate, or is higher than the upper surface of the upper seat plate, the clamping block body is lifted by the clamping block unlocking rod 8-2, the bottom surface of the clamping block body 81 can be completely separated from the lower clamping groove. Therefore, when the shape of the clamping block body is designed, the length of the clamping block body is smaller than the length of the clamping groove 1-1-1 on the clamping block body, the length of the lower clamping groove is larger than the length of the clamping groove 1-1-1 on the clamping block body, the width of the clamping block body is smaller than the length of the clamping groove 1-1-1 on the clamping block body, the width of the lower clamping groove is larger than the length of the clamping groove 1-1-1 on the clamping block body, thus the clamping of the clamping block body is convenient, and the width of the clamping groove 1-1-2 on the unlocking rod is larger than the width of the clamping block unlocking rod 8-2.
A guiding slide plate is arranged between the permanent stop block 1-2 and the upper part of the upper seat plate 3.
A guiding sliding plate is arranged between the limiting plate 9 and the lower part of the upper seat plate 3.
Example 1
A hyperboloid spherical shock-absorbing and isolating support with a displacement locking function is provided, as shown in figures 1, 2 and 5. The device mainly comprises a top seat plate 1, a plane friction pair 2, an upper seat plate 3, an upper spherical friction pair 4, a middle seat plate 5, a lower spherical friction pair 6, a lower seat plate 7, a clamping block 8, a limiting plate 9 and the like. The bottom surface of the top seat board 1 is pasted with a planar stainless steel slide plate, two upper clamping grooves 1-1 are respectively arranged on two sides of a longitudinal bridge direction of stainless steel, a top seat board unlocking rod groove 1-2 is reserved at the short side of the outer side of the length direction of the upper clamping groove, and the four upper clamping grooves 1-1 are in a central symmetry state, as shown in fig. 6 and 7. The upper surface of the upper seat plate 3 is embedded with a planar nonmetallic sliding plate and forms a planar friction pair 2 with a planar stainless steel sliding plate, two lower clamping grooves 3-1 are respectively arranged on two sides of a longitudinal bridge of the nonmetallic sliding plate, as shown in fig. 2, the length of each lower clamping groove 3-1 is slightly larger than that of each clamping groove 1-1-1 on the clamping block body, and the four lower clamping grooves 3-1 are in a central symmetry state. The center distance between the upper clamping groove 1-1-1 of the clamping block body and the lower clamping groove 3-1 of the lower seat plate on the same side along the longitudinal bridge direction is the normal temperature rise maximum displacement of the support, and the upper clamping groove and the lower clamping groove on the two sides are overlapped along the center line of the longitudinal bridge direction. The clamping block 8 mainly comprises two parts, namely a clamping block body 8-1 and a clamping block unlocking rod 8-2, as shown in fig. 8; the clamping block body 8-1 is mostly covered on the clamping groove 1-1-1 of the clamping block body under normal condition and falls on the top surface of the upper seat plate 3. The width and the length of the clamping block body 8-1 are slightly smaller than the upper clamping groove 1-1 of the top seat plate and the lower clamping groove 3-1 of the lower seat plate; the clamping block unlocking rod 8-2 is positioned on the outer side surface of the clamping block body 8-1, extends out from an opening of the upper clamping groove 1-1 penetrating through one side of the top seat plate, and ensures that the clamping block body 8-1 falls into the lower clamping groove 3-1 of the upper seat plate of the support in the height direction, and the clamping block unlocking rod 8-2 is still positioned on the upper surface of the upper seat plate 3; the length of the clamping block unlocking rod 8-2 needs to exceed a certain length outside the support top seat plate after assembly, so that manual unlocking is facilitated.
The upper spherical friction pair 4 and the lower spherical friction pair 6 are respectively formed by a convex spherical slide plate and a concave spherical slide plate between the upper seat plate 3 and the middle seat plate 5 and between the middle seat plate 5 and the lower seat plate 7, and the two friction pairs are sliding friction pairs and rotating friction pairs, wherein one of the concave spherical slide plate and the convex spherical slide plate is a stainless steel spherical slide plate, and the other is an nonmetal spherical slide plate. The plane sliding plate between the top seat plate 1 and the upper seat plate 3 forms a plane friction pair 2, wherein one plane sliding plate is a stainless steel plane sliding plate, and the other plane sliding plate is a nonmetal plane sliding plate. The stop blocks at the two sides of the transverse bridge at the bottom of the top seat board 1 are permanent stop blocks; the upper part of the upper seat plate 3 is provided with guide sliding plates at both sides of the transverse bridge and the inner sides of the corresponding check blocks; the periphery of the lower part of the upper seat plate 3 and the inner side of the limiting plate 9 corresponding to the periphery are provided with guide sliding plates. The middle seat board 3 is cylindrical with convex spherical surfaces on the upper and lower surfaces. Both sides of the upper limiting direction of the lower seat plate 7 are provided with limiting plates 9.
The plane friction pair 2, the upper spherical friction pair 4 and the lower spherical friction pair 6 jointly form a vertical pressure-bearing friction pair of the support, and the vertical bearing friction pair has the vertical bearing and vertical bridge sliding and vertical rotating functions. The limiting plate 9 plays a role in constraining the horizontal sliding of the upper spherical friction pair 4 and the lower spherical friction pair 6 under normal conditions; the bottom transverse bridge of the top seat board 1 plays a role in limiting the transverse limit function of the plane friction pair 2 to the permanent stop blocks at two sides.
During normal operation, the upper spherical friction pair 4 and the lower spherical friction pair 6 of the support are restrained by the peripheral limiting plates 9, only the plane friction pair 2 between the top seat plate 1 and the upper seat plate 3 can horizontally slide along the longitudinal bridge, the normal sliding of the support can not bring about the lifting of the beam body, and the normal running stability requirement of the bridge is met; when an earthquake occurs, the plane friction pair 2 of the support slides first, and if the plane friction pair slides to the position of normal temperature rise maximum displacement, the clamping block 8 is sunk into the clamping groove 3-1 under the upper seat plate due to gravity, and the plane friction pair 2 is locked, as shown in fig. 9. The support transmits horizontal force to the limiting plate 9, horizontal sliding constraint of the two spherical friction pairs 4 and 6 is relieved after the limiting plate 9 is damaged, horizontal reciprocating sliding is achieved through the double spherical surface synthesis effect of the upper seat plate 3 and the middle seat plate 5, and the middle seat plate 5 and the lower seat plate 7, seismic energy is dissipated through friction resistance of the sliding surface in the reciprocating sliding process, the structure self-vibration period is prolonged, and the seismic isolation effect is achieved.
In the process, the support plane friction pair 2 is locked by the clamping block 8 and does not participate in the shock absorption and insulation sliding, the support always slides by the double spherical surfaces, and the double spherical surfaces and the planes slide mutually, so that the shock absorption and insulation effect of the longitudinal bridge direction of the support is improved. After an earthquake, the component force of the dead weight of the upper structure of the support along the curved surface direction is used as a restoring force to restore the support. Meanwhile, after an earthquake, the locking rod 8-2 is lifted upwards manually through the locking block to enable the locking block body 8-1 to be completely separated from the lower clamping groove 3-1 of the upper seat plate, so that the plane friction pair 2 is unlocked, and the plane friction pair is shown in fig. 10; finally, the jack pushes the support plane friction pair 2 to realize that the top seat board 1 returns to the central position.
According to the hyperboloid spherical seismic reduction and isolation support with the displacement locking function, a plane slides to a position of normal temperature rise maximum displacement under an earthquake, a clamping block 8 falls into a clamping groove 3-1 due to gravity, a plane friction pair 2 is locked, the support transmits horizontal force to a limiting plate 9, and after the limiting plate 9 is damaged, the support always slides in a hyperboloid manner to play a role of seismic reduction and isolation, so that the seismic reduction and isolation effect of the longitudinal bridge direction of the support is improved; after an earthquake, the clamping block 8 can be unlocked, and the normal function of the support is recovered.
Example 2
The hyperboloid spherical seismic reduction and isolation support with the displacement locking function is provided, and the principle and the structure of the hyperboloid spherical seismic reduction and isolation support are the same as those of the embodiment 1, and the difference is that, as shown in fig. 3, only one upper clamping groove 1-1 is provided, two lower clamping grooves 3-1 are provided, the two lower clamping grooves are positioned on two sides of the upper clamping groove 1-1, the center distance between the two lower clamping grooves 3-1 and the upper clamping groove 1-1 along the longitudinal bridge direction is the normal temperature rise maximum displacement of the support, and no matter which side displacement of the top seat plate is subjected to the normal temperature rise maximum displacement limit.
Example 3
The hyperboloid spherical seismic reduction and isolation support with the displacement locking function is provided, and the principle and the structure of the hyperboloid spherical seismic reduction and isolation support are the same as those of the embodiment 1, and the difference is that two upper clamping grooves 1-1 are arranged in a symmetrical manner along the central line in the transverse direction of the bridge as shown in fig. 4, the positions of the upper clamping grooves 1-1 of the clamping block body are more close to the central line in the longitudinal direction of the support, meanwhile, the upper clamping grooves 1-1 on the same side correspond to one lower clamping groove 3-1 respectively, the lower clamping grooves 3-1 are arranged on the inner side of the upper clamping grooves 1-1, and normal temperature rise maximum displacement limit can be carried out no matter which side of the top seat plate is displaced.
Claims (3)
1. The utility model provides a hyperboloid ball-type shock-absorbing and isolating support with displacement locking function, including top bedplate (1), upper bedplate (3), well bedplate (5), lower bedplate (7), limiting plate (9), top bedplate (1), upper bedplate (3), well bedplate (5) and lower bedplate (7) set gradually from top to bottom, the lower surface of top bedplate (1) and the upper surface of upper bedplate (3) are the plane, be equipped with plane friction pair (2) between the lower surface of top bedplate (1) and the upper surface of upper bedplate (3), the transverse bridge of top bedplate (1) is equipped with on both sides to the upper portion of upper bedplate (3) and carries out permanent dog (1-2) of lateral limit, the lower surface of upper bedplate (3) and the upper surface of lower bedplate (7) are the sphere, be equipped with in the space that upper and lower surface are the sphere is all enclosed by upper and lower bedplate (3) in bedplate (7), be equipped with between the lower surface of upper bedplate (3) and the upper surface of upper bedplate (5) and upper surface of upper plate (4), be equipped with between the upper surface of lower bedplate (7) and the upper surface of upper plate (5) and the corresponding side of lower bedplate (7), the lateral limit plate (9) is fixed to the lateral limit plate (9), the method is characterized in that:
the support also comprises a displacement locking component arranged between the top seat plate (1) and the upper seat plate (3), the displacement locking component comprises at least one upper clamping groove (1-1) which is arranged on the lower surface of the top seat plate (1) and penetrates through the side surface of the top seat plate (1), at least two lower clamping grooves (3-1) which are arranged on the upper surface of the upper seat plate (3), and a clamping block (8) which extends out of the support from the through hole of the upper clamping groove (1-1), the clamping block (8) consists of a clamping block body (8-1) and a clamping block unlocking rod (8-2) which are connected into a whole, the bottom surface height of the clamping block unlocking rod (8-2) is higher than the bottom surface of the clamping block body (8-1), the top surface height of the clamping block unlocking rod (8-2) is lower than or equal to the top surface height of the clamping block body (8-1), the length of the clamping block unlocking rod (8-2) after assembly is required to exceed the outer certain length of the support top seat plate (1), the upper clamping groove (1-1) and the lower clamping groove (3-1) are arranged on the side of the upper seat plate (1) and the upper seat plate (3-1) along the normal direction, the clamping block is the upper surface of the clamping seat plate (1) and the lower side of the clamping seat plate (1) is the upper side of the upper seat plate (1) and the normal, the clamping block unlocking rod (2) is arranged on the side of the upper seat plate (1) along the normal side of the upper side of the clamping plate (1) and the upper seat plate (1), the upper portion of fixture block (8) sets up in last draw-in groove (1-1), and fixture block (8) are along with footstock board (1) on last bedplate (3) removal, and when the displacement of footstock board (1) and last bedplate (3) reached normal temperature rise maximum displacement, the lower part of fixture block body (8-1) falls into in lower draw-in groove (3-1) of homonymy, and the upper portion of fixture block body (8-1) still blocks and establishes in last draw-in groove (1-1), makes between footstock board (1) and the last bedplate (3) realize displacement locking.
2. The hyperboloid ball-type seismic reduction and isolation support with displacement locking function as set forth in claim 1, wherein: a guide sliding plate is arranged between the permanent stop block (1-2) and the upper part of the upper seat plate (3).
3. The hyperboloid ball-type seismic reduction and isolation support with displacement locking function as set forth in claim 1, wherein: a guiding sliding plate is arranged between the limiting plate (9) and the lower part of the upper seat plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726404.1A CN110485280B (en) | 2019-08-07 | 2019-08-07 | Hyperboloid ball-type shock-absorbing and isolating support with displacement locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726404.1A CN110485280B (en) | 2019-08-07 | 2019-08-07 | Hyperboloid ball-type shock-absorbing and isolating support with displacement locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110485280A CN110485280A (en) | 2019-11-22 |
| CN110485280B true CN110485280B (en) | 2024-02-06 |
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| CN201910726404.1A Active CN110485280B (en) | 2019-08-07 | 2019-08-07 | Hyperboloid ball-type shock-absorbing and isolating support with displacement locking function |
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