CN216075268U - Shock insulation support with controllable maximum acceleration - Google Patents

Abstract

According to the embodiment of the utility model, the vibration isolation support with the controllable maximum acceleration comprises: the bottom plate, first damping piece, first slider, roof, second damping piece, the second slider, be formed with two sets of first spouts that extend along the first direction on the bottom plate, first damping piece links to each other and scalable along the direction that is on a parallel with first spout with the bottom plate, the free end of first damping piece is located to first slider, and first slider is slidable along one of two sets of first spouts, make second spout and first slider relative motion and first spout and second slider relative motion when the roof moves, second damping piece links to each other and scalable along the direction that is on a parallel with the second spout with the roof, the free end of second damping piece is located to the second slider, and the second slider is slidable along another one of two sets of second spouts, wherein, be equipped with friction material on at least first slider and the second slider and with the shock insulation. The shock insulation support with the controllable maximum acceleration can control the acceleration of the object on the top plate.

Description

Shock insulation support with controllable maximum acceleration

Technical Field

The utility model relates to the technical field of civil engineering, in particular to a shock insulation support with controllable maximum acceleration.

Background

In the related art, the base isolation technology is mature in the aspect of building structure earthquake resistance. The mode of setting up the shock insulation layer through at building structure bottom effectively reduces seismic energy to building structure's input to the safety of protection building structure and its internal equipment. The frequent occurrence of earthquake leads to the destruction of a plurality of acceleration-sensitive objects under the earthquake due to the excessive acceleration, and the economic and cultural losses of the objects are difficult to estimate. The loss can be effectively reduced by applying the seismic isolation technology to the article, but the acceleration sensitive article is easier to damage compared with a building structure, the requirement on acceleration control is higher, and the common building seismic isolation support is difficult to achieve the effect of controlling the maximum acceleration of the article.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, one object of the utility model is to provide a seismic isolation support with controllable maximum acceleration, which is decoupled from a damping piece in two perpendicular directions of planar motion through friction of the support, controls the maximum acceleration of an article on the top plate by using friction between a friction material and a sliding groove, realizes control of the maximum acceleration of the protected article, and has the advantages of simple structure and convenience in manufacturing.

According to the embodiment of the utility model, the vibration isolation support with the controllable maximum acceleration comprises: the sliding device comprises a bottom plate, a first sliding groove and a second sliding groove, wherein the bottom plate is provided with two groups of first sliding grooves extending along a first direction; the pair of first damping pieces are connected with the bottom plate and are telescopic along a direction parallel to the first sliding groove; the first sliding block is arranged at the free end of the first damping part and can slide along one of the two groups of first sliding grooves; the top plate is arranged opposite to the bottom plate, two groups of second sliding grooves extending along a second direction perpendicular to the first direction are formed in the top plate, and one of the two groups of second sliding grooves is matched with the first sliding block so that the second sliding grooves and the first sliding block move relatively when the top plate moves; the pair of second damping pieces are connected with the top plate and are telescopic along the direction parallel to the second sliding groove; the second sliding block is arranged at the free end of the second damping part and can slide along the other of the two groups of second sliding grooves, and the other of the two groups of first sliding grooves is matched with the second sliding block so as to enable the first sliding grooves and the second sliding block to move relatively when the top plate moves; the first sliding block and the second sliding block are at least provided with friction materials for shock insulation, in the sliding process, friction force between the friction materials and the sliding groove is used for controlling the maximum acceleration of the object on the upper portion of the top plate, damping force provided by the first damping piece and the second damping piece is used for preventing the object on the upper portion of the top plate from being excited in a self-vibration mode, and the friction force in the restoring force of the shock insulation support is far larger than the damping force so as to control the maximum acceleration of the protected object.

According to the shock insulation support with the controllable maximum acceleration, a friction sliding space is defined between the top plate and the bottom plate for the sliding block and the damping piece, the damping force provided by the first damping piece and the second damping piece is utilized, the movement speed of the top plate can be effectively controlled, the self-vibration mode of an article on the upper portion of the top plate is prevented from being excited, in the relative movement process of the sliding block and the sliding groove, the effect of common shock insulation of the friction and the damping piece is achieved by means of bidirectional decoupling of plane movement to two vertical movements, the maximum acceleration of the protected article can be effectively controlled, acceleration sensitive damage of the protected article can be avoided, the friction force in the restoring force of the shock insulation support is far larger than the damping force, the friction force and the damping force are in the same direction, the directions of the friction force and the damping force are opposite to the movement direction of the sliding block, and the acceleration control is achieved.

In addition, the vibration isolation support with controllable maximum acceleration according to the embodiment of the utility model also has the following additional technical characteristics:

in some embodiments of the present invention, the friction coefficient of the friction material is constant, and assuming that the friction coefficient between the sliding block and the sliding chute is μ, the gravity acceleration is g, and the maximum acceleration to which the article on the top plate is subjected is am, the friction coefficient μ satisfies: μ < am/g; if the maximum damping force provided by the first damping part and the second damping part is F, and the mass of the article on the upper part of the top plate is m, the maximum damping force F should satisfy the following conditions: f < < mu mg.

In some embodiments of the present invention, the friction material is embedded and fixed at a position of the first sliding block or the second sliding block, which is in contact with the corresponding sliding groove.

In some embodiments of the present invention, the set of first sliding grooves includes two first sliding grooves arranged at intervals, a first mounting plate is arranged at a position where the bottom plate faces one end of the set of first sliding grooves, the other end of the first sliding groove is open, and a base of the first damping member is connected to the first mounting plate.

In some embodiments of the present invention, the bottom plate is formed with a plurality of first stiffening ribs extending in the same direction, and the first sliding grooves are defined between two adjacent first stiffening ribs.

In some embodiments of the utility model, the first damping member is welded to the first mounting plate or attached by fasteners.

In some embodiments of the present invention, the set of second sliding grooves includes two second sliding grooves arranged at intervals, the top plate is provided with a second mounting plate at a position opposite to one end of the set of second sliding grooves, the other end of the set of second sliding grooves is open, and the base of the second damping member is connected to the second mounting plate.

In some embodiments of the present invention, the top plate is formed with a plurality of second stiffening ribs extending in the same direction, and the second sliding grooves are defined between two adjacent second stiffening ribs.

In some embodiments of the present invention, the top plate further has a third stiffening rib formed thereon, and the third stiffening rib extends perpendicular to or in the same direction as the second stiffening rib.

In some embodiments of the utility model, the second damping member is welded to the second mounting plate or is attached by fasteners. Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a seismic isolation mount with controllable maximum acceleration according to an embodiment of the present invention.

Fig. 2 is a perspective view showing a partial structure of the seismic mount of fig. 1 in which the structure of the top plate is not shown, in which the maximum acceleration is controlled according to the embodiment of the present invention.

Fig. 3 is a schematic view of a base plate of the seismic isolation mount of fig. 1 in which the maximum acceleration is controlled according to the embodiment of the present invention.

Fig. 4 is a schematic view of a top plate of the seismic isolation mount of fig. 1 in which the maximum acceleration is controlled according to the embodiment of the present invention.

Fig. 5 is a schematic view of a seismic isolation mount with controllable maximum acceleration according to an embodiment of the present invention in one state of motion.

Fig. 6 is a schematic view of the seismic isolation mount according to the embodiment of the present invention shown in fig. 5, in which the structure of the top plate is not shown, in a moving state.

Fig. 7 is a side view of the seismic mount of fig. 1 with maximum acceleration control according to an embodiment of the present invention.

Fig. 8 is a sectional view taken along line a-a of fig. 7.

Fig. 9 is another side view of the seismic mount of fig. 1 with controlled maximum acceleration according to an embodiment of the present invention.

Fig. 10 is a sectional view taken along line B-B of fig. 9.

Reference numerals:

a vibration isolation support 100 with controllable maximum acceleration,

The bottom plate 1, the first mounting plate 11, the first runner 12, the first group of first runners 121, the second group of first runners 122, the first stiffening ribs 13,

A first damping member 2, a first slider 3,

A top plate 4, a second mounting plate 41, a second runner 42, a first group of second runners 421, a second group of second runners 422, a second stiffener 43, a third stiffener 44,

A second damping member 5 and a second slider 6.

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 accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

A seismic isolation mount 100 whose maximum acceleration is controllable according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, a seismic isolation mount 100, whose maximum acceleration is controllable, according to an embodiment of the present invention includes: a bottom plate 1, a pair of first dampers 2, a first slider 3, a top plate 4, a pair of second dampers 5, and a second slider 6. The first damping member 2 and the second damping member 5 may be viscous dampers or the like.

Specifically, two sets of first chutes 12 extending in a first direction are formed in the bottom plate 1; the first damping part 2 is connected with the bottom plate 1 and can extend and retract along the direction parallel to the first sliding chute 12; the first sliding block 3 is arranged at the free end of the first damping part 2, and the first sliding block 3 can slide along one of the two groups of first sliding grooves 12.

For example, two sets of first sliding grooves 12 are formed on the bottom plate 1, the two sets of first sliding grooves 12 may be respectively referred to as a first set of first sliding grooves 121 and a second set of first sliding grooves 122, the first set of first sliding grooves 121 may be located outside the second set of first sliding grooves 122, and the first slider 3 may slide along the first set of first sliding grooves 121 on the bottom plate 1. Both sets of first sliding chutes 12 may extend in a first direction, which may be referred to as direction F1 shown in fig. 3, each set of first sliding chutes 12 including two first sliding chutes 12 arranged at intervals.

Referring to fig. 1, the first damping member 2 is connected to the base plate 1 such that the first damping member 2 can be fixed to the base plate 1 and the first damping member 2 can be extended and contracted in a direction parallel to the first sliding groove 12; the first slider 3 is provided at the free end of the first damping member 2, and the first slider 3 is slidable along the first sliding groove 12. Therefore, under the action of external force, the first sliding block 3 can slide along the first sliding groove 12 and drive the first damping part 2 to stretch and retract along the direction parallel to the first sliding groove 12, so that mechanical vibration can be reduced and kinetic energy can be consumed by utilizing the damping characteristic of the first damping part 2.

The free end is referred to as a fixed end, for example, if the left end of the first damping member 2 is fixed, the first slider 3 may be disposed at the right end of the first damping member 2; if the right end of the first damping member 2 is fixed, the first sliding block 3 can be arranged at the left end of the first damping member 2. In this application, the free end and the fixed end of a pair of first damping parts 2 are staggered, that is, the free end of one of the first damping parts 2 in a pair of first damping parts 2 corresponds to the fixed end of the other first damping part 2, and under this condition, the first slider 3 can drive the two first damping parts 2 to move along opposite directions.

The top plate 4 is disposed opposite to the bottom plate 1, and two sets of second sliding grooves 42 extending in a second direction perpendicular to the first direction are formed on the top plate 4, and one of the two sets of second sliding grooves 42 is configured to match the first slider 3 so that the second sliding grooves 42 move relative to the first slider 3 when the top plate 4 moves.

For example, the top plate 4 and the bottom plate 1 may be disposed opposite to and spaced apart from each other in the up-down direction shown in fig. 1, a protected article such as a cultural relic or the like may be placed on the top plate 4, a pair of the first damping members 2 and the first slider 3 may be disposed on a side of the bottom plate 1 adjacent to the top plate 4, and a side of the top plate 4 adjacent to the bottom plate 1 may be formed with two sets of the second sliding grooves 42, both the two sets of the second sliding grooves 42 may extend in the second direction, which is perpendicular to the first direction (the second direction may refer to the direction of F2 shown in fig. 4), the two sets of the second sliding grooves 42 may be respectively referred to as a first set of the second sliding grooves 421 and a second set of the second sliding grooves 422, the first set of the second sliding grooves 421 may be disposed inside the second set of the second sliding grooves 422, the first slider 3 on the bottom plate 1 may be slid along the first set of the second sliding grooves 421, the second slider 6 on the top plate 4 may be slid along the second set of the second sliding grooves 422, this allows the second slide groove 42 and the first slide block 3 to move relative to each other while the first slide groove 12 and the second slide block 6 move relative to each other when the top plate 4 moves.

The second damping member 5 is connected with the top plate 4 and is telescopic along a direction parallel to the second sliding groove 42; the second sliding block 6 is disposed at the free end of the second damping member 5, and the second sliding block 6 is slidable along the other of the two sets of second sliding grooves 42.

Referring to fig. 1, the second damping member 5 is connected to the top plate 4 such that the second damping member 5 can be fixed to the top plate 4 and the second damping member 5 can be extended and contracted in a direction parallel to the second sliding groove 42; the second sliding block 6 is arranged at the free end of the second damping part 5, the second sliding block 6 can slide along the second sliding slot 42, and the other sliding slot 12 in the two groups is matched with the second sliding block 6 so as to enable the first sliding slot 12 and the second sliding block 6 to move relatively when the top plate 4 moves. Therefore, under the action of external force, the second sliding block 6 can slide along the second sliding groove 42 and drive the second damping part 5 to stretch along the direction parallel to the second sliding groove 42, so that the damping characteristic of the second damping part 5 can be utilized to slow down mechanical vibration and consume kinetic energy.

The free end is referred to as a fixed end, for example, if the front end of the second damping member 5 is fixed, the second slider 6 may be provided at the rear end of the second damping member 5; if the rear end of the second damper 5 is fixed, the second slider 6 may be provided at the front end of the second damper 5. In this application, the free ends and the fixed ends of the pair of second damping members 5 are staggered, that is, the free end of one of the second damping members 5 in the pair of second damping members 5 corresponds to the fixed end of the other second damping member 5, and in this case, the second slider 6 can drive the two second damping members 5 to move in opposite directions.

The working process of the seismic isolation bearing 100 with controllable maximum acceleration according to the embodiment of the utility model comprises the following steps: when the top plate 4 moves in the first direction, the top plate 4 drives the first slider 3 disposed at the free end of the first damping member 2 to slide along a set of first sliding grooves 12 (e.g., the first set of first sliding grooves 121) on the bottom plate 1, the first slider 3 drives the first damping member 2 to extend and retract along a direction parallel to the first sliding grooves 12, and meanwhile, along with the movement of the top plate 4 in the first direction, the top plate 4 can drive the second slider 6 disposed at the free end of the second damping member 5 to move along another set of first sliding grooves 12 (e.g., the second set of first sliding grooves 122) on the bottom plate 1 in the first direction. When the top plate 4 moves in the second direction, the pair of second damping members 5 is connected to the top plate 4, the top plate 4 moves to drive the second damping members 5 to extend and retract in a direction perpendicular to the direction of the first sliding grooves 12 and parallel to the two sets of second sliding grooves 42, meanwhile, the second slider 6 connected to the free end of the second damping member 5 moves along with the top plate 4, the second slider 6 slides along one of the two sets of second sliding grooves 42 (for example, the second set of second sliding grooves 422) on the top plate 4, so that the top plate 4 and the second slider 6 move relatively in the second direction, and along with the movement of the top plate 4 in the second direction, the first slider 3 can move relatively along the other set of second sliding grooves 42 (for example, the first set of second sliding grooves 421) along with the top plate 4.

Here, it should be noted that the movement of the top plate 4 in the first direction and the second direction is performed simultaneously.

The first sliding block 3 and the second sliding block 6 are provided with friction materials for shock insulation, in the sliding process, friction force between the friction materials and the sliding grooves is used for controlling the maximum acceleration of the object on the upper portion of the top plate 4, damping force provided by the first damping piece 2 and the second damping piece 5 is used for preventing the object on the upper portion of the top plate 4 from being excited in a self-vibration mode, and the friction force in the restoring force of the shock insulation support is far larger than the damping force so as to control the maximum acceleration of the protected object.

For example, a friction material for vibration isolation may be provided on the first slider 3, a friction material for vibration isolation may be provided on the second slider 6, or both the first slider 3 and the second slider 6 may be provided with a friction material for vibration isolation. Of course, the friction material may be provided in the corresponding sliding groove, or both the sliding block and the sliding groove.

Therefore, in the sliding process, the friction force between the friction material and the sliding chute (including the first sliding chute 12 and/or the second sliding chute 42) can be used for controlling the maximum acceleration of the object on the top plate 4, the damping force provided by the first damping part 2 and the second damping part 5 can prevent the self-vibration mode of the object on the top plate 4 from being excited, and the friction force in the restoring force of the support is far larger than the vibration-isolating damping force, wherein the damping force is in the same direction as the friction force and opposite to the movement direction of the corresponding sliding block, so that the control on the maximum acceleration of the protected object can be realized, and the protection on the object on the top plate 4 can be realized.

According to the vibration isolation support 100 with the controllable maximum acceleration, the friction of the support and the damping piece are decoupled in two vertical directions of planar motion, the maximum acceleration of an article on the top plate 4 is controlled by using the friction between the friction material and the sliding groove, so that the maximum acceleration of the protected article is controlled, and the article on the top plate 4 is protected.

According to the shock insulation support 100 with the controllable maximum acceleration, a friction sliding space is defined between the top plate 4 and the bottom plate 1 for the sliding block and the damping piece, the damping force provided by the first damping piece 2 and the second damping piece 5 is utilized, sudden change of the acceleration of the top plate 4 can be effectively avoided, the self-vibration mode of an article on the top plate 4 is prevented from being excited, in the relative motion process of the sliding block and the sliding groove, the effect of common shock insulation of the friction and the damping piece is achieved by means of bidirectionally decoupling plane motion to two vertical motions, the maximum acceleration of the protected article can be effectively controlled, acceleration sensitive damage of the protected article can be avoided, the friction force in the restoring force of the shock insulation support is far larger than the damping force, the friction force and the damping force are in the same direction, and the directions of the friction force and the damping force are opposite to the motion direction of the sliding block, and the control of the acceleration is achieved.

According to some embodiments of the utility model, the friction coefficient of the friction material is constant, assuming that the friction coefficient between the slide (comprising the first slide 3 and/or the second slide 6) and the chute (comprising the first chute 12 and/or the second chute 42) is μ, the gravitational acceleration is g, and the maximum acceleration to which the article on the top plate 4 is subjected is a_mThen the coefficient of friction μ satisfies: mu.s<a_m(ii)/g; if the maximum damping force provided by the first damping member 2 and the second damping member 5 is F and the mass of the article on the top plate 4 is m, the maximum damping force F should satisfy: f<<μmg。

According to the vibration isolation bearing 100 with controllable maximum acceleration, when the top plate 4 is moved under the action of an external force, μmg is a friction force F when the first sliding block 3 or the second sliding block 6 slides between the bottom plate 1 and the top plate 4, the direction of the friction force is opposite to the moving direction of the first sliding block 3 or the second sliding block 6 which generates the friction force, F is the maximum damping force which can be provided by a single damping piece, the direction of the damping force provided by the damping piece is consistent with the direction of the friction force generated by the sliding block connected with the free end of the damping piece, and the direction of the sliding block connected with the free end of the damping piece is opposite to the moving direction. By making the damping force F much smaller than the frictional force F, when the top plate 4 moves, the maximum acceleration of the protected article can be controlled while preventing the natural vibration mode of the article on the top plate 4 from being excited under the combined action of the damping force and the frictional force.

According to some embodiments of the utility model, the friction material is embedded at the position of the first slider 3 or the second slider 6 where it contacts the corresponding runner. The friction material may be, for example, polytetrafluoroethylene or the like.

For example, the friction material may be connected to the respective slider in a snap-in manner, thereby facilitating replacement of the friction material. By arranging the friction material at the position of the first slider 3 (or the second slider 6) contacting with the corresponding chute (such as the first chute 12 and/or the second chute 42), when the slider and the corresponding chute move to generate friction, the friction material can be uniformly distributed on the surface of the chute through abrasion, and the advantages of strong adaptability, stable friction coefficient and the like are achieved.

According to the vibration isolation support 100 with the controllable maximum acceleration, friction materials can be embedded at the positions where the sliding blocks are in contact with the sliding grooves, so that in the sliding process of the top plate 4, the sliding blocks are in contact with the corresponding sliding grooves of the top plate 4 and the bottom plate 1, friction force is provided for the friction materials in the sliding grooves where the sliding blocks are in contact with the top plate 4 and the bottom plate 1, the friction materials can reduce power loss when the first sliding blocks 3 or the second sliding blocks 6 move in the corresponding sliding grooves, abrasion is reduced, and power is transmitted.

According to some embodiments of the present invention, the set of first sliding grooves 12 includes two first sliding grooves 12 arranged at intervals, the bottom plate 1 is provided with a first mounting plate 11 at a position facing one end of the set of first sliding grooves 12, the other end of the first sliding grooves 12 is open, and the base of the first damping member 2 is connected to the first mounting plate 11.

Referring to fig. 3, the first sliding grooves 12 on the base plate 1 include two sets, a first set of first sliding grooves 121 may be matched with the first slider 3, and a second set of first sliding grooves 122 may be matched with the second slider 6. The set of first chutes 12 includes two first chutes 12, and the two first chutes 12 may be spaced apart. Be equipped with first mounting panel 11 in the position department that bottom plate 1 just faces first group first spout 121 one end, first mounting panel 11 can be perpendicular to bottom plate 1 and extend towards roof 4, and the one end of first group first spout 121 can open, and the base of first damping piece 2 links to each other with first mounting panel 11, can further realize the assembly between first damping piece 2 and the bottom plate 1 through first mounting panel 11 like this.

Further, a plurality of first stiffening ribs 13 extending in the same direction are formed on the bottom plate 1, and a first sliding groove 12 is defined between two adjacent first stiffening ribs 13. For example, referring to fig. 3, a plurality of first stiffening ribs 13 are formed on the bottom plate 1, and the plurality of first stiffening ribs 13 may extend in the same direction on the bottom plate 1, wherein a first sliding slot 12 may be defined between two adjacent first stiffening ribs 13, the first sliding slot 12 may provide guidance for the sliding of the first sliding block 3 and the second sliding block 6 on the bottom plate 1, respectively, and by providing the plurality of first stiffening ribs 13 on the bottom plate 1, the structural strength of the bottom plate 1 may be improved, and during vibration, the stability and torsion resistance of the bottom plate 1 may be improved by the first stiffening ribs 13 on the bottom plate 1.

According to some embodiments of the utility model, the first damping member 2 is welded or fastened to the first mounting plate 11. For example, in some embodiments, the base of the first damping member 2 may be connected to the first mounting plate 11 by welding; in some embodiments, the base of the first damping member 2 may also be connected to the first mounting plate 11 by fasteners (e.g., screws, bolts, etc.). This makes it possible to achieve a reliable connection between the first damping member 2 and the first mounting plate 11.

According to the seismic isolation bearing 100 with the controllable maximum acceleration, in the process that the top plate 4 moves along the first direction, the top plate 4 drives the sliding block to move towards the first direction, the first sliding block 3 drives the pair of first damping pieces 2 to stretch and retract along the first direction, and in the process that the pair of first damping pieces 2 stretch and retract, the base of the first damping pieces 2 is connected with the first mounting plate 11 to play a role of fixing the first damping pieces 2 in movement, so that the stretching process of the first damping pieces 2 is relatively stable.

According to some embodiments of the present invention, the set of second sliding grooves 42 includes two second sliding grooves 42 arranged at intervals, the top plate 4 is provided with a second mounting plate 41 at a position right opposite to one end of the set of second sliding grooves 42, the other end of the set of second sliding grooves 42 is open, and the base of the second damping member 5 is connected to the second mounting plate 41.

Referring to fig. 4, the second sliding grooves 42 on the top plate 4 include two sets, the first set of second sliding grooves 421 may be matched with the first slider 3, the second set of second sliding grooves 422 may be matched with the second slider 6, each set of second sliding grooves 42 includes two second sliding grooves 42, the two second sliding grooves 42 are spaced apart, a second mounting plate 41 is disposed at a position where the top plate 4 faces one end of the second set of second sliding grooves 422, the second mounting plate 41 may extend toward the bottom plate 1 perpendicular to the top plate 4, the other end of the second set of second sliding grooves 422 is open, and a base of the second damping member 5 is connected to the second mounting plate 41. This further enables the assembly between the second damping member 5 and the top plate 4 by the second mounting plate 41.

Further, a plurality of second stiffening ribs 43 extending in the same direction are formed on the top plate 4, and a second sliding groove 42 is defined between two adjacent second stiffening ribs 43. For example, referring to fig. 4, a plurality of second stiffening ribs 43 are formed on the top plate 4, the extending direction of the plurality of second stiffening ribs 43 is the same, and a second sliding slot 42 is defined between two adjacent second stiffening ribs 43, the second sliding slot 42 provides a guide for the sliding of the first sliding block 3 and the second sliding block 6 on the top plate 4, and the second stiffening ribs 43 on the top plate 4 can improve the stability and the torsion resistance of the top plate 4.

According to some embodiments of the present invention, the top plate 4 is further formed with a third stiffener 44, and the third stiffener 44 extends perpendicular to or in the same direction as the second stiffener 43. Here, the top plate 4 needs to bear the weight of the upper article, and the third stiffening rib 44 and the second stiffening rib 43 are arranged on the top plate 4, so that the vertical upward supporting force can be effectively provided for the top plate 4, and the effect of strengthening the bearing force of the top plate 4 is achieved.

For example, as shown in fig. 4, in some embodiments, the top plate 4 is formed with a plurality of second stiffening ribs 43 extending in the same direction, and the top plate 4 is also formed with third stiffening ribs 44, the third stiffening ribs 44 being perpendicular to the second stiffening ribs 43. In some embodiments, a plurality of second stiffening ribs 43 extending in the same direction may be formed on the top plate 4, and a third stiffening rib 44 is formed on the top plate 4, and the third stiffening rib 44 and the second stiffening ribs 43 extend in the same direction; in some embodiments, a plurality of second stiffening ribs 43 extending in the same direction may be formed on the top plate 4, and a third stiffening rib 44 may be formed on the top plate 4, wherein a part of the third stiffening rib 44 extends in the same direction as the second stiffening rib 43, and a part of the third stiffening rib 44 is perpendicular to (or staggered with) the second stiffening rib 43. Therefore, the second stiffening ribs 43 and the third stiffening ribs 44 which are arranged in the same direction or in a staggered manner are arranged on the top plate 4, so that the structural strength of the top plate 4 is improved, and articles on the top plate 4 can be reliably supported.

According to some embodiments of the present invention, the second damping member 5 is welded or fastened to the second mounting plate 41. For example, in some embodiments, the base of the second damping member 5 may be connected to the second mounting plate 41 by welding; in some embodiments, the base of the second damping member 5 may also be connected to the second mounting plate 41 by fasteners (e.g., screws, bolts, etc.). This makes it possible to achieve a reliable connection between the second damping member 5 and the second mounting plate 41.

According to the seismic isolation bearing 100 with the controllable maximum acceleration, in the process that the top plate 4 moves along the second direction, the second mounting plate 41 connected with the top plate 4 is connected with the base of the second damping piece 5, the top plate 4 can drive the second damping piece 5 to stretch and retract when moving, and in the process that the second damping piece 5 stretches and retracts, as the base of the second damping piece 5 is connected with the second mounting plate 41, the stretching and retracting process of the second damping piece 5 can be relatively stable.

Other constructions and operations of the maximum acceleration controllable seismic mount 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A vibration-isolating support with controllable maximum acceleration is characterized by comprising:

the sliding device comprises a bottom plate, a first sliding groove and a second sliding groove, wherein the bottom plate is provided with two groups of first sliding grooves extending along a first direction;

the pair of first damping pieces are connected with the bottom plate and are telescopic along a direction parallel to the first sliding groove;

the first sliding block is arranged at the free end of the first damping part and can slide along one of the two groups of first sliding grooves;

the top plate is arranged opposite to the bottom plate, two groups of second sliding grooves extending along a second direction perpendicular to the first direction are formed in the top plate, and one of the two groups of second sliding grooves is matched with the first sliding block so that the second sliding grooves and the first sliding block move relatively when the top plate moves;

the pair of second damping pieces are connected with the top plate and are telescopic along the direction parallel to the second sliding groove;

the second sliding block is arranged at the free end of the second damping part and can slide along the other of the two groups of second sliding grooves, and the other of the two groups of first sliding grooves is matched with the second sliding block so as to enable the first sliding grooves and the second sliding block to move relatively when the top plate moves;

the first sliding block and the second sliding block are at least provided with friction materials for shock insulation, in the sliding process, friction force between the friction materials and the sliding groove is used for controlling the maximum acceleration of the object on the upper portion of the top plate, damping force provided by the first damping piece and the second damping piece is used for preventing the object on the upper portion of the top plate from being excited in a self-vibration mode, and the friction force in the restoring force of the shock insulation support is far larger than the damping force so as to control the maximum acceleration of the protected object.

2. Vibration-isolated support according to claim 1, wherein the friction coefficient of said friction material is constant, assuming that the friction coefficient between said sliding block and sliding groove is μ, the gravity acceleration is g, and the maximum acceleration a to which the object on the top plate is subjected is a_mThen the coefficient of friction μ satisfies: mu.s<a_m/g；

If the maximum damping force provided by the first damping part and the second damping part is F, and the mass of the article on the upper part of the top plate is m, the maximum damping force F should satisfy the following conditions: f < < mu mg.

3. The vibration-isolating support with controllable maximum acceleration as claimed in claim 1, wherein the friction material is embedded and fixed at the position where the first sliding block or the second sliding block contacts with the corresponding sliding groove.

4. The vibration-isolating support with controllable maximum acceleration as claimed in claim 1, wherein the set of first sliding grooves includes two first sliding grooves arranged at intervals, a first mounting plate is arranged at a position where the bottom plate faces one end of the set of first sliding grooves, the other end of the first sliding groove is open, and the base of the first damping member is connected with the first mounting plate.

5. A vibration-isolating support with controllable maximum acceleration as claimed in claim 4, wherein said base plate is formed with a plurality of first stiffening ribs extending in the same direction, and said first sliding grooves are defined between two adjacent first stiffening ribs.

6. Vibration-isolating mount according to claim 4, wherein the first damping member is welded to the first mounting plate or fastened thereto by fasteners.

7. A vibration-isolating mount as claimed in any one of claims 1 to 6 in which the set of second runners includes two second runners spaced apart, a second mounting plate is provided on the top plate at a position directly opposite one end of the set of second runners, the other end of the set of second runners is open, and the base of the second damping member is connected to the second mounting plate.

8. The vibration-isolating mount with controllable maximum acceleration as claimed in claim 7, wherein the top plate is formed with a plurality of second stiffening ribs extending in the same direction, and the second sliding grooves are defined between two adjacent second stiffening ribs.

9. The vibration-isolated mount with controllable maximum acceleration as claimed in claim 8, wherein the top plate is further formed with a third stiffening rib, and the third stiffening rib extends perpendicular to or in the same direction as the second stiffening rib.

10. Vibration-isolating mount with controllable maximum acceleration according to claim 7, wherein the second damping member is welded to the second mounting plate or connected thereto by a fastener.

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