CN212271287U - Self-resetting cam type damper response amplifying device - Google Patents
Self-resetting cam type damper response amplifying device Download PDFInfo
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- CN212271287U CN212271287U CN202021041580.6U CN202021041580U CN212271287U CN 212271287 U CN212271287 U CN 212271287U CN 202021041580 U CN202021041580 U CN 202021041580U CN 212271287 U CN212271287 U CN 212271287U
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Abstract
The utility model relates to a self-resetting cam type damper response amplifying device, which comprises a shell, a self-resetting mechanism, a cam mechanism, a damper, a base and a ball screw, wherein the ball screw penetrates through the self-resetting mechanism and the cam mechanism; the self-resetting mechanism comprises a combined disc spring and a sleeve, the combined disc spring is sleeved on the sleeve, the sleeve is sleeved on the ball screw, and disc spring baffles are fixedly connected to two end parts of the sleeve; the cam mechanism comprises a rectangular frame and a cam, a ball nut is sleeved on a ball screw, the cam is fixedly sleeved on the ball nut, the rectangular frame is sleeved on the cam, a limiting frame is arranged outside the rectangular frame, the rectangular frame moves in the limiting frame in a reciprocating mode, the limiting frame is fixedly connected to the base, one end of the damper is connected to the base, and the other end of the damper is connected to the rectangular frame. The utility model discloses can enlarge the interlaminar deformation response that building structure produced, make the attenuator full play power consumption ability and the displacement inefficacy in the journey to have from the reset function.
Description
Technical Field
The utility model relates to a building structure energy dissipation shock attenuation technical field, concretely relates to from reset cam formula attenuator response amplification device.
Background
China is a country with frequent earthquakes, and the earthquakes bring a great amount of casualties and economic losses. In order to reduce the damage of earthquake to building structure, the energy dissipation and shock absorption technology is more and more widely applied. The energy dissipation and shock absorption technology is an effective method for applying the modern structural vibration control theory to structural seismic fortification, a certain additional rigidity or additional damping is provided for the structure by additionally arranging dampers at certain parts of the structure, and energy input into the structure is dissipated mainly through the dampers under the action of an earthquake so as to reduce the dynamic response of the structure.
In practice, the displacement and the speed between layers of the building structure are small under the action of external loads such as earthquake and wind load, and the damper is difficult to exert effective energy consumption capability. In recent years, various damper damping devices with amplification effects appear at home and abroad, and the lever or gear principle and the like are mainly utilized to amplify the displacement and the speed between structural layers, so that the damper can exert energy consumption capability as early as possible under the action of earthquake and wind load. However, when a rare earthquake occurs, the amplified interlayer displacement or velocity can cause the damper to reach the performance limit earlier and fail, so that the structure is at risk of damage and even collapse; however, the traditional energy consumption and shock absorption technology needs a large-tonnage large-stroke damper, so that the manufacturing cost is high, and the damper is also in the risk of performance failure. In addition, the existing response amplification damper has no self-resetting function, so that the structure generates large residual deformation, and the self-resetting damper is complex in structure, difficult to install, non-integrated in structure and difficult to apply in engineering.
SUMMERY OF THE UTILITY MODEL
To the technical problem who exists among the prior art, the utility model aims at: provided is a self-resetting cam type damper response amplification device, which can amplify the interlayer deformation response generated by a building structure, enable the damper to fully exert energy consumption capability in the stroke without displacement failure, and enable the interlayer deformation generated by the building structure to be self-resetting.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a self-resetting cam type damper response amplifying device comprises a shell, a self-resetting mechanism arranged in a first cavity of the shell, a cam mechanism, a damper, a base and a ball screw, wherein the cam mechanism, the damper and the base are arranged in a second cavity of the shell; the self-resetting mechanism makes telescopic motion in the first cavity and comprises a combined disc spring and a sleeve, the combined disc spring is sleeved on the sleeve, the sleeve is sleeved on the ball screw, and disc spring baffles are fixedly connected to two ends of the sleeve; cam mechanism makes reciprocating motion in the second cavity, drives the attenuator and makes reciprocating motion, and cam mechanism includes rectangle frame and cam, and the cover is equipped with ball nut on the ball, and the fixed suit of cam is on ball nut, and the rectangle frame cover is established on the cam, and the outside of rectangle frame is equipped with spacing frame, and reciprocating motion is made in spacing frame to the rectangle frame, and spacing frame fixed connection is on the base, and the one end of attenuator is connected on the base, and the other end of attenuator is connected on the rectangle frame.
Furthermore, two end parts of the combined disc spring are fixedly connected with the disc spring baffle, a limiting nut is arranged on the outer side of the disc spring baffle, the limiting nut is fixedly sleeved on the ball screw, and the combined disc spring and the disc spring baffle are limited on the corresponding position of the ball screw by the limiting nut.
Furthermore, a square hole is formed in one side wall of the shell, one end of the ball screw penetrates through the square hole and is connected with a first connecting piece, a certain distance is reserved between the other end of the ball screw and the other side wall of the shell, and a second connecting piece is fixedly connected to the outer portion of the other side wall of the shell. The first connecting piece and the second connecting piece are used for connecting a building structure, a certain distance is reserved between the other end of the ball screw and the other side wall of the shell, the distance is the maximum moving displacement of the ball screw, the distance is reserved activity space of the ball screw, and the device is prevented from losing efficacy due to overlarge displacement stroke of the building structure.
Further, the dish spring baffle of sleeve pipe one end is hugged closely on the lateral wall of seting up the quad slit, and the inside first limit baffle that is equipped with of casing, the dish spring baffle of the sleeve pipe other end hug closely on first limit baffle, and combination dish spring and dish spring baffle can only move between the lateral wall of seting up the quad slit and first limit baffle.
Furthermore, the middle part of the sleeve is made of elastic material and can bear certain compression deformation.
Furthermore, the left side and the right side of the rectangular frame are both provided with second limiting baffle plates, through holes for the ball screws to pass through are formed in the second limiting baffle plates, and stiffening ribs are arranged on the second limiting baffle plates. The stiffening rib is used for supporting the second limit baffle, and the stability of the device is guaranteed.
Further, thrust bearings are arranged between the two second limiting baffle plates and the ball nuts, and the thrust bearings are sleeved on the ball screws. The second limit baffle and the thrust bearing are used for preventing the ball nut from horizontally moving towards the left side and the right side, and the ball nut is guaranteed to rotate on the ball screw only, so that the cam is driven to rotate.
Further, the attenuator has two, and two attenuators set up both sides around the rectangle frame respectively, all are equipped with first otic placode on the wall of the front and back both sides of rectangle frame, and bolted connection is passed through on first otic placode to the one end of attenuator, is equipped with the second otic placode on the base, and bolted connection is passed through on the second otic placode to the other end of attenuator.
Furthermore, the front side and the rear side of the rectangular frame are respectively provided with a third limiting baffle plate, and the third limiting baffle plates are positioned between the rectangular frame and the damper. The third limiting baffle is used for preventing the rectangular frame from moving to the front side and the rear side, and the rectangular frame is guaranteed to reciprocate in the track limited by the limiting frame.
Further, the damper is a velocity-dependent type damper or a displacement-dependent type damper.
In general, the utility model has the advantages as follows:
1. the utility model discloses have good response and enlarge the effect, can enlarge displacement and velocity response between the layer that building structure produced, make the attenuator can full play power consumption ability under the effect of little shake, can guarantee again that the attenuator is big shake or extremely rare earthquake effect displacement inefficacy down. The utility model discloses a ball passes through ball nut and turns into the rotary motion of cam with horizontal motion, and the cam rotates and drives rectangle frame reciprocating motion, and rectangle frame reciprocating motion drives attenuator reciprocating motion power consumption.
2. The utility model discloses have from the reset function, through the resilience force of combination dish spring, drive ball and reset to the displacement resets between the layer that drives building structure.
3. The utility model discloses the integration structure is convenient for apply to in the actual engineering to can reduce engineering cost, be applicable to little shake and even extremely rare meeting earthquake effect.
Drawings
Fig. 1 is a schematic diagram of the internal structure of the present invention.
Fig. 2 is a schematic structural diagram of the self-resetting mechanism of the present invention.
Fig. 3 is a schematic structural diagram of the cam mechanism and the damper according to the present invention.
Fig. 4 is an external structural diagram of the present invention.
Fig. 5 is a schematic view of the present invention in a normal state.
Fig. 6 is a schematic view of the present invention in a compressed state.
Fig. 7 is a schematic view of the present invention in a pulled state.
Wherein: 1 is the casing, 2 is the combination dish spring, 3 is the sleeve pipe, 4 is dish spring baffle, 5 is ball, 6 is ball nut, 7 is limit nut, 8 is the quad slit, 9 is the cam, 10 is the rectangle frame, 11 is limit frame, 12 is thrust bearing, 13 is first limit baffle, 14 is the second limit baffle, 15 is the third limit baffle, 16 is the stiffening rib, 17 is the attenuator, 18 is first otic placode, 19 is the second otic placode, 20 is the bolt, 21 is the base, 22 is first connecting piece, 23 is the second connecting piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
For convenience of description, the front, rear, left and right directions described below are defined as follows: as shown in fig. 1, the position of the first connecting piece is the left side, the position of the second connecting piece is the right side, the position of the damper which can be directly seen is the front side, and the position of the other damper which is symmetrically arranged is the rear side.
As shown in fig. 1, 2 and 3, a self-resetting cam type damper response amplifying device comprises a shell, a self-resetting mechanism arranged in a first cavity of the shell, a cam mechanism, a damper and a base arranged in a second cavity of the shell, and a ball screw penetrating through the self-resetting mechanism and the cam mechanism; the self-resetting mechanism makes telescopic motion in the first cavity and comprises a combined disc spring and a sleeve, the combined disc spring is sleeved on the sleeve, the sleeve is sleeved on the ball screw, and disc spring baffles are fixedly connected to two ends of the sleeve; cam mechanism makes reciprocating motion in the second cavity, drive the attenuator and make reciprocating motion, cam mechanism includes rectangle frame and cam, the cover is equipped with ball nut on the ball, the fixed suit of cam is on ball nut, the rectangle frame cover is established on the cam, the outside of rectangle frame is equipped with spacing frame, reciprocating motion is made in spacing frame to the rectangle frame, spacing frame fixed connection is on the base, the one end of attenuator is connected on the base, the other end of attenuator is connected on the rectangle frame, the base is fixed on the casing.
As shown in fig. 3, the limiting frame includes at least four limiting rods, in this embodiment, the limiting frame is composed of four limiting rods, the four limiting rods are respectively disposed on the left and right sides of two vertical edges of the rectangular frame, and a vertical track is formed between the limiting rods on the left and right sides of the vertical line edge, so that the rectangular frame can only reciprocate up and down in the vertical track.
As shown in fig. 1 and 4, the housing is a closed whole, the housing is formed by welding a plurality of steel plates, a side wall of the housing is provided with a square hole, one end of the ball screw penetrates through the square hole and is connected with a first connecting piece, a certain distance is reserved between the other end of the ball screw and the other side wall of the housing, and the other side wall of the housing is fixedly connected with a second connecting piece. The first connector and the second connector are used for connecting the building structure. There is certain distance between the other end of ball and the other lateral wall of casing, and this distance is ball's the biggest displacement, and this distance is ball's reservation activity space, avoids the device to lose efficacy because building structure displacement stroke is too big.
As shown in fig. 1 and 2, the combined disc spring is sleeved on a sleeve, the sleeve is used for protecting the ball screw and preventing the combined disc spring from directly contacting with the ball screw, and the middle part of the sleeve is made of an elastic material and can bear certain compression deformation. Two tip of combination dish spring all with dish spring baffle fixed connection, the outside of dish spring baffle all is equipped with stop nut, and stop nut fixes the cover dress on ball, and stop nut will make up dish spring and dish spring baffle and inject on ball corresponding position. The dish spring baffle of sleeve pipe one end is hugged closely on the lateral wall of seting up the quad slit, and the casing is inside to be equipped with first limit baffle, and the dish spring baffle of the sleeve pipe other end is hugged closely on first limit baffle, and combination dish spring and dish spring baffle can only move between the lateral wall of seting up the quad slit and first limit baffle, move in the first cavity of casing promptly. The combined disc spring is formed by stamping a steel plate made of 60Si2MnA and 50CrVA materials, and is pre-pressed, so that the combined disc spring can be compressed and deformed no matter a building structure is pressed or pulled, and restoring force is provided.
As shown in fig. 3 and 5, the left side and the right side of the rectangular frame are both provided with a second limiting baffle, the second limiting baffle is provided with a through hole for the ball screw to pass through, and the second limiting baffle is provided with a stiffening rib. The stiffening rib is used for supporting the second limit baffle, and the stability of the device is guaranteed. Thrust bearings are arranged between the two second limiting baffle plates and the ball nuts, and the thrust bearings are sleeved on the ball screws. The second limit baffle and the thrust bearing are used for preventing the ball nut from horizontally moving towards the left side and the right side, and the ball nut is guaranteed to rotate on the ball screw only, so that the cam is driven to rotate. And third limiting baffles are arranged on the front side and the rear side of the rectangular frame and are positioned between the rectangular frame and the damper. The third limiting baffle is used for preventing the rectangular frame from moving to the front side and the rear side, and the rectangular frame is guaranteed to reciprocate in the track limited by the limiting frame. The attenuator has two, and two attenuators set up both sides around the rectangle frame respectively, all are equipped with first otic placode on the wall of the front and back both sides of rectangle frame, and bolted connection is passed through on first otic placode to the one end of attenuator, is equipped with the second otic placode on the base, and bolted connection is passed through on the second otic placode to the other end of attenuator. The damper is a velocity-dependent damper or a displacement-dependent damper.
When the utility model is used, the first connecting piece and the second connecting piece are connected with the building structure, when earthquake happens, the interlayer displacement generated by the building structure pushes the ball screw to move horizontally, the ball screw moves horizontally to drive the ball nut to rotate, because the second limit baffle and the thrust bearing limit the horizontal movement of the ball nut to the left and the right, the ball nut can only rotate on the ball screw, the rotation of the ball nut drives the cam to rotate, friction exists between the cam and the rectangular frame, the friction force between the cam and the rectangular frame can dissipate part of energy, the cam drives the rectangular frame to reciprocate, because the limiting frame limits the motion track of the rectangular frame, the rectangular frame can only reciprocate up and down in the limiting frame, the up-and-down reciprocating motion of the rectangular frame drives the dampers connected to the front side and the rear side of the rectangular frame to reciprocate, and energy dissipation and shock absorption are realized through the reciprocating motion of the dampers.
As shown in fig. 6, when the ball screw is forced to move horizontally to the right, the ball screw moves horizontally to the right to drive the ball nut to rotate, the ball nut rotates to drive the cam to rotate, the cam rotates to drive the rectangular frame to reciprocate, and the rectangular frame reciprocates to drive the damper to reciprocate to consume energy. Meanwhile, the left limiting nut pushes the left disc spring baffle to move rightwards, and the first limiting baffle blocks the right disc spring baffle, so that the combined disc spring is compressed and deformed. After the earthquake is over, the pressure of the ball screw disappears, the combined disc spring rebounds, the left disc spring baffle pushes the left limiting nut to move leftwards, and the left limiting nut drives the ball screw to move leftwards to reset, so that the interlayer displacement of the building structure resets.
As shown in fig. 7, when the ball screw moves horizontally to the left under the action of tension, the ball screw moves horizontally to the left to drive the ball nut to rotate, the ball nut rotates to drive the cam to rotate, the cam rotates to drive the rectangular frame to reciprocate, and the rectangular frame reciprocates to drive the damper to reciprocate to consume energy. Meanwhile, the limiting nut on the right side pushes the disc spring baffle on the right side to move leftwards, and the side wall provided with the square hole blocks the disc spring baffle on the left side, so that the combined disc spring is compressed and deformed. After the earthquake is finished, the tension of the ball screw disappears, the combined disc spring rebounds, the disc spring baffle on the right side pushes the limiting nut on the right side to move rightwards, and the limiting nut on the right side drives the ball screw to move rightwards to reset, so that the interlayer displacement of the building structure resets.
The utility model discloses have good response and enlarge the effect, can enlarge displacement and velocity response between the layer that building structure produced, make the attenuator can full play power consumption ability under the effect of little shake, can guarantee again that the attenuator is big shake or extremely rare earthquake effect displacement inefficacy down. Through the size of rational design ball screw pitch, the eccentric distance of cam and the type etc. of reasonable selection attenuator, can adjust the slew velocity of cam to drive the faster reciprocating motion of rectangle frame, make the attenuator can provide bigger power consumption ability. The utility model discloses still have from the reset function, through the resilience force of combination dish spring, drive ball and reset to the displacement resets between the layer that drives building structure. The utility model discloses the integration structure is convenient for apply to in the actual engineering to can reduce engineering cost, be applicable to little shake and even extremely rare meeting earthquake effect.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. A self-resetting cam-type damper response amplifying device, characterized in that: the self-resetting mechanism is arranged in a first cavity of the shell, the cam mechanism, the damper and the base are arranged in a second cavity of the shell, and the ball screw penetrates through the self-resetting mechanism and the cam mechanism; the self-resetting mechanism makes telescopic motion in the first cavity and comprises a combined disc spring and a sleeve, the combined disc spring is sleeved on the sleeve, the sleeve is sleeved on the ball screw, and disc spring baffles are fixedly connected to two ends of the sleeve; cam mechanism makes reciprocating motion in the second cavity, drives the attenuator and makes reciprocating motion, and cam mechanism includes rectangle frame and cam, and the cover is equipped with ball nut on the ball, and the fixed suit of cam is on ball nut, and the rectangle frame cover is established on the cam, and the outside of rectangle frame is equipped with spacing frame, and reciprocating motion is made in spacing frame to the rectangle frame, and spacing frame fixed connection is on the base, and the one end of attenuator is connected on the base, and the other end of attenuator is connected on the rectangle frame.
2. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: two ends of the combined disc spring are fixedly connected with the disc spring baffle, the outer side of the disc spring baffle is provided with a limiting nut, and the limiting nut is fixedly sleeved on the ball screw.
3. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: a square hole is formed in one side wall of the shell, one end of the ball screw penetrates through the square hole and is connected with a first connecting piece, a certain distance is reserved between the other end of the ball screw and the other side wall of the shell, and a second connecting piece is fixedly connected to the outer portion of the other side wall of the shell.
4. A self-resetting cam-type damper response amplifying device according to claim 3, wherein: the dish spring baffle of sleeve pipe one end is hugged closely on the lateral wall of seting up the quad slit, and the casing is inside to be equipped with first limit baffle, and the dish spring baffle of the sleeve pipe other end is hugged closely on first limit baffle.
5. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: the middle part of the sleeve is made of elastic material.
6. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: the left and right sides of rectangle frame all is equipped with second limit baffle, sets up the through-hole that supplies ball to pass on the second limit baffle, is equipped with stiffening rib on the second limit baffle.
7. A self-resetting cam-type damper response amplifying device according to claim 6, wherein: thrust bearings are arranged between the two second limiting baffle plates and the ball nuts, and the thrust bearings are sleeved on the ball screws.
8. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: the attenuator has two, and two attenuators set up both sides around the rectangle frame respectively, all are equipped with first otic placode on the wall of the front and back both sides of rectangle frame, and bolted connection is passed through on first otic placode to the one end of attenuator, is equipped with the second otic placode on the base, and bolted connection is passed through on the second otic placode to the other end of attenuator.
9. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: and third limiting baffles are arranged on the front side and the rear side of the rectangular frame and are positioned between the rectangular frame and the damper.
10. A self-resetting cam-type damper response amplifying device according to claim 1, wherein: the damper is a velocity-dependent damper or a displacement-dependent damper.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021041580.6U CN212271287U (en) | 2020-06-09 | 2020-06-09 | Self-resetting cam type damper response amplifying device |
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| CN202021041580.6U CN212271287U (en) | 2020-06-09 | 2020-06-09 | Self-resetting cam type damper response amplifying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719727A (en) * | 2020-06-09 | 2020-09-29 | 广州大学 | Self-resetting cam type damper response amplifying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719727A (en) * | 2020-06-09 | 2020-09-29 | 广州大学 | Self-resetting cam type damper response amplifying device |
| CN111719727B (en) * | 2020-06-09 | 2024-09-24 | 广州大学 | Self-resetting cam type damper response amplifying device |
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