CN109811924A - A kind of cylinder cam-type damper response amplifying device - Google Patents
A kind of cylinder cam-type damper response amplifying device Download PDFInfo
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- CN109811924A CN109811924A CN201910125353.7A CN201910125353A CN109811924A CN 109811924 A CN109811924 A CN 109811924A CN 201910125353 A CN201910125353 A CN 201910125353A CN 109811924 A CN109811924 A CN 109811924A
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- damper
- cylindrical cam
- ball
- amplifying device
- screw
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Abstract
The present invention relates to a kind of cylinder cam-type dampers to respond amplifying device, including rack, the ball-screw of movable type installation, the nut being threadedly coupled with ball-screw, reciprocal cylindrical cam mechanism, damper；Reciprocal cylindrical cam mechanism includes the cylindrical cam mutually fixed with nut, the follower lever matched with cylindrical cam；On the rack, the other end of damper is connected on follower lever for one end connection of damper, and ball-screw is relatively fixed in the axis direction of ball-screw through cylindrical cam, nut and rack from the central through hole of cylindrical cam.The relative storey displacement and speed responsive amplification that amplifying device can generate building structure are responded, so that damper is given full play to energy dissipation capacity in limited design runlength and is displaced and does not fail, belongs to earthquake engineering technical field.
Description
Technical field
The present invention relates to earthquake engineering technical fields more particularly to a kind of cylinder cam-type damper to respond amplifying device.
Background technique
Energy-dissipating and shock-absorbing technology is that modern structure vibration control theory is applied to earthquake-resistant structure and one of sets up defences effective ways,
Damper is added by certain positions in structure, certain additional stiffness or additional damping are provided for structure, in geological process
Mainly dissipated by damper down the energy of input structure, to mitigate the dynamic response of structure.
The relative storey displacement and speed that practical building structure generates under the effect of the external loads such as frequently occurred earthquake and wind load are smaller,
Damper is difficult to play effective energy dissipation capacity.For this purpose, in recent years, occurring a variety of dampers with enlarge-effect both at home and abroad
Damping device (CN204282573U, CN204385942U, CN104499594A etc.) mainly utilizes lever or gear principle etc.
Structure relative storey displacement and speed are amplified, damper is enable to play energy consumption energy as early as possible under frequently occurred earthquake and wind action
Power.But when meeting with pole rarely occurred earthquake, the relative storey displacement or speed being exaggerated will lead to damper and reach performance boundary earlier
And fail, so that structure is faced the risk destroyed or even collapsed；And use traditional energy-dissipating and shock-absorbing technology, then it needs using large-tonnage
Big stroke damper, causes cost higher, and damper is also faced with the risk of performance failure.
It is special that application No. is 201720876018.7,201711291043.X, 201711291027.0,201711291109.5
Benefit develops constant breadth cam formula, plough groove type, partial gear formula, gear and the response of crank linkage formula damper respectively and amplifies
Device, but ideal control effect is not achieved.
Summary of the invention
For the technical problems in the prior art, the object of the present invention is to provide a kind of cylinder cam-type dampers
Amplifying device is responded, the relative storey displacement and speed responsive that building structure can be generated are amplified, and make damper in limited design row
Energy dissipation capacity is given full play in journey and is displaced and is not failed.
In order to achieve the above object, the present invention adopts the following technical scheme:
A kind of cylinder cam-type damper response amplifying device, including rack, the ball-screw of movable type installation, with ball
The nut of threads of lead screw connection, reciprocal cylindrical cam mechanism, damper；Reciprocal cylindrical cam mechanism includes mutually fixed with nut
Cylindrical cam, the follower lever matched with cylindrical cam；On the rack, the other end of damper connects for one end connection of damper
On follower lever, ball-screw runs through cylindrical cam, nut and rack in the axis of ball-screw from the central through hole of cylindrical cam
Line direction is relatively fixed.
Further, rack includes bottom plate, two pieces of side baffles being symmetrically fixed on bottom plate connect two pieces of side baffles
Limit frid；The upper end of side baffle is equipped with projection, and one end of damper is connected in projection by connection buckle, damper it is another
End is connected on follower lever by connection buckle, and limit frid is equipped with the straight line notch moved back and forth for follower lever, follower lever
Across straight line notch.
Further, there are two dampers, the two sides of two damper separation follower levers.
Further, rack further includes top plate, the both ends of top plate are connected in two pieces of projections, the lower surface of top plate
Equipped with sliding slot track, the upper end of follower lever is located in sliding slot track.
Further, cylindrical cam is located between limit frid and bottom plate, there are two nuts, and two nuts are fixed respectively
In the two sides of cylindrical cam, side baffle is equipped with thrust bearing, and ball-screw passes through thrust axis from the central through hole of thrust bearing
It holds, thrust bearing is in contact with nut.
Further, being equipped with stiffening plate between bottom plate and side baffle.
Further, damper is placed on the upper surface of limit frid, there are gaps between damper and top plate.
Further, damper is hydraulic damper.
Generally speaking, the present invention has the advantage that
This response amplifying device can either have response amplification effect, fill damper under small shake or wind shake effect
Energy dissipation capacity is waved in distribution, and can guarantee that damper does not fail in big shake or pole rarely occurred earthquake effect bottom offset.The present invention uses
Cylindrical cam mechanism reaches required control effect by designing suitable groove track, and the advantage protruded is lead screw
The direction of motion and damper it is coplanar, it is easier in energy-dissipating and shock-absorbing system install application.The present invention can generate structure
Relative storey displacement and the responses amplification such as speed, so that damper is given full play to energy dissipation capacity in limited design runlength and is displaced and does not lose
Effect.Force principle of the present invention is simple, construction and it is easy to maintenance, project cost can be reduced, be suitable for small shake or even pole rarely occurred earthquake
Effect.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is plan view of the invention.
Fig. 3 is the structural schematic diagram of cylindrical cam structure of the invention.
Fig. 4 is the structural schematic diagram of top plate of the invention.
Fig. 5 is the structural schematic diagram of limit frid of the invention.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
It is now attached to what is occurred in Figure of description for the ease of uniformly checking each appended drawing reference inside Figure of description
Icon note is unitedly described as follows:
1 is bottom plate, and 2 be side baffle, and 3 be mounting hole, and 4 be stiffening plate, and 5 be cylindrical cam, and 6 be ball-screw, and 7 be spiral shell
Mother, 8 be thrust bearing, and 9 be limit frid, and 10 be top plate, and 11 be follower lever, and 12 be damper, and 13 be connection buckle, and 14 be curve
Groove, 15 be sliding slot track.
For sake of convenience, now hereafter described orientation is described as follows: hereafter described direction and Fig. 2 itself up and down
Direction up and down it is consistent.
As shown in Figure 1, Figure 2, a kind of cylinder cam-type damper responds amplifying device, including rack, movable type installation
Ball-screw, the nut being threadedly coupled with ball-screw, reciprocal cylindrical cam mechanism, damper.Ball-screw can be in water
Square to straight reciprocating, nut then covers on ball-screw.Reciprocal cylindrical cam mechanism includes the circle mutually fixed with nut
Column cam, the follower lever matched with cylindrical cam.As shown in connection with fig. 3, reciprocal cylindrical cam mechanism belongs to the prior art, can be with
The rotary motion of cylindrical cam is become to the straight reciprocating motion of follower lever, has curved slot on cylindrical cam, in curved slot
Restriction effect under, follower lever straight reciprocating motion.Cylindrical cam of the invention can allow follower lever straight line in the horizontal direction
It moves back and forth.On the rack, the other end of damper is connected on follower lever for one end connection of damper.Ball-screw is from cylinder
The central through hole of cam runs through cylindrical cam, and cylindrical cam has central through hole, and ball-screw is to pass through circle from the central through hole
Column cam, and the diameter of the central through hole is greater than the diameter of ball-screw, there is no be in contact ball-screw with cylindrical cam.
Nut and rack are relatively fixed in the axis direction of ball-screw, i.e., on the axis direction of ball-screw, nut and rack are
It is relatively-stationary, nut be in the axial direction it is fixed, it is immovable, can only rotate.
As shown in Figure 1, Figure 2, rack includes bottom plate, it is symmetrically fixed on two pieces of side baffles of plate upper surface, connection two
The limit frid of block side baffle.Two pieces of side baffles are located at the left part and right part of bottom plate.The upper end of two pieces of side baffles is equipped with
One end of projection, damper is connected in projection by connection buckle, and the other end of damper is connected to follower lever by connection buckle
On, connection buckle is the prior art, for two components to link together, two components is relatively rotated or relatively
It is fixed.As shown in connection with fig. 5, limit frid is equipped with the straight line notch moved back and forth for follower lever, and follower lever is lacked across straight line
Mouthful, under the restriction of the straight line notch, follower lever can only linear reciprocation side-to-side movement.The follower lever 11 is connected with damper 12
It is placed in cylindrical cam, effect of the follower lever due to limiting frid 9 makees straight reciprocating motion under the drive of cylindrical cam 5.
Ball-screw runs through side baffle from the central through hole of side baffle, and side baffle has central through hole, and ball-screw is logical from the center
Hole passes through side baffle, and the diameter of the central through hole is greater than the diameter of ball-screw, ball-screw there is no with side baffle phase
Contact.
As shown in Figure 1, Figure 2, the two sides of two damper separation follower levers a, damper exists there are two dampers
The left side of follower lever, another damper is on the right side of follower lever.
As shown in connection with fig. 4, rack further includes top plate, and the both ends of top plate are connected in two pieces of projections, the following table of top plate
Face is equipped with linear sliding slot track, and the upper end of follower lever is located in sliding slot track.Top plate, projection, bottom plate, side baffle are
It is fixed together.
Cylindrical cam is located between limit frid and bottom plate, and cylindrical cam is not contacted with limit frid and bottom plate.Nut
There are two, two nuts are separately fixed at the two sides of cylindrical cam, and a nut is fixed on the left side of cylindrical cam, another spiral shell
Mother is fixed on the right side of cylindrical cam.It is designed with thrust bearing on two pieces of the side baffle in left and right, ball-screw is from thrust bearing
Central through hole pass through thrust bearing, and the diameter of the central through hole be greater than ball-screw diameter, ball-screw there is no with push away
Power bearing is in contact.Thrust bearing is in contact with nut.Nut and rack has been achieved in the axis direction phase of ball-screw
To fixation.
Stiffening plate is equipped between bottom plate and side baffle.
Damper is placed on the upper surface of limit frid, and there are gaps between damper and top plate.The weight of damper by
Limit frid undertakes, and there are certain intervals with top plate for damper.
Damper is hydraulic damper.
Bottom plate 1 is equipped with multiple mounting holes 3, and bottom plate is connected by bolt with building structure.
The working principle of this response amplifying device: ball-screw is connected with building structure, the interlayer position that building structure generates
It moves and pushes ball-screw, so that ball-screw moves back and forth in the horizontal direction, since thrust bearing heads on nut, so that nut is not
It can move horizontally, nut can only rotate, and nut drives cylindrical cam rotation, and follower lever 11 is made to make the reciprocating linear fortune of horizontal direction
It is dynamic, so that damper generates displacement in the horizontal direction, damper 12 is caused to consume energy.
The present invention can provide certain rigidity and damping in normal use to building structure, reduce the lateral of building structure
Deformation, in geological process, ball-screw is moved horizontally, and drives nut and cylindrical cam rotation, follower lever is made to make linear reciprocation
It moves and then damper is made to play energy consumption effect.Under frequently occurred earthquake effect, in the lesser situation of displacement that building structure generates,
It can make displacement and speed amplification by cylindrical cam mechanism, damper is made to play its effective energy dissipation capacity；Make in pole rarely occurred earthquake
Under, the displacement and speed that building structure generates are very big, and cylindrical cam velocity of rotation is accelerated at this time, and follower lever moves back and forth speed
Accelerate but displacement still limits in a certain range, requirement of setting up defences can be met using the damper of corresponding stroke, the present invention is broken through
Pole rarely occurred earthquake is resisted in traditional energy-dissipating and shock-absorbing technology must use the deficiency of big displacement stroke, big damps device, energy
The energy dissipation capacity for enough giving full play to damper is accomplished safety and benefit and is deposited.
By adjusting the curved slot length on cylindrical cam surface, thus it is possible to vary the reciprocating motion orbital path of follower lever
Length, i.e., the displacement that controllable follower lever moves back and forth reach our be pre-designed to adjust the ratio of displacement equations
It is required that.
The present invention can play relatively good energy consumption effect to frequently occurred earthquake or even pole rarely occurred earthquake, be particularly suitable for extremely rare
The energy-dissipating and shock-absorbing under geological process is met, damper was not fully utilized when being not only avoided that frequently occurred earthquake, but also was avoided that extremely rare chance
Using the damper of excessive stroke and tonnage when earthquake, cause project cost higher, and the present invention is always amplified position
Transfer turns to the straight reciprocating motion in design limited travel, can achieve the effect that displacement is not failed.
Mechanical property of the invention is simple, working mechanism is clear, construction and it is easy to maintenance, project cost can be reduced.
In the present invention, rotary motion is converted for horizontal movement by the effect of ball-screw and cylindrical cam mechanism
Rotary motion is converted to linear reciprocating motion again afterwards, thus damper always happens the limited shift reciprocately in allowed band,
It overcomes and is difficult to play effective energy dissipation capacity if damper displacement or speed are smaller, if damper displacement or speed are larger
The higher deficiency of cost need to be led to using the big stroke damper of large-tonnage.In addition, the curved slot and follower lever of cylindrical cam
Cooperating becomes rolling friction for sliding friction, substantially reduces the frictional resistance in transmission mechanism, anti-locking mechanism is being driven
During it is stuck, guarantee mechanism can work normally always.Meanwhile it also can be convex by changing cylinder according to actual requirement of engineering
The shape of wheel curved slot reaches ideal control effect to change the running track of follower lever.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of cylinder cam-type damper responds amplifying device, it is characterised in that: including rack, the ball wire of movable type installation
Thick stick, the nut being threadedly coupled with ball-screw, reciprocal cylindrical cam mechanism, damper；Reciprocal cylindrical cam mechanism includes and spiral shell
The fixed cylindrical cam of parent phase, the follower lever matched with cylindrical cam；One end of damper connects on the rack, damper
The other end is connected on follower lever, and ball-screw is being rolled from the central through hole of cylindrical cam through cylindrical cam, nut and rack
The axis direction of ballscrew is relatively fixed.
2. a kind of cylinder cam-type damper described in accordance with the claim 1 responds amplifying device, it is characterised in that: rack includes
Bottom plate, two pieces of side baffles being symmetrically fixed on bottom plate, connects the limit frid of two pieces of side baffles；The upper end of side baffle is equipped with prominent
One end of block, damper is connected in projection by connection buckle, and the other end of damper is connected on follower lever by connection buckle,
It limits frid and is equipped with the straight line notch moved back and forth for follower lever, follower lever passes through straight line notch.
3. a kind of cylinder cam-type damper responds amplifying device according to claim 2, it is characterised in that: damper has
Two, the two sides of two damper separation follower levers.
4. a kind of cylinder cam-type damper responds amplifying device according to claim 2, it is characterised in that: rack is also wrapped
Top plate is included, the both ends of top plate are connected in two pieces of projections, and the lower surface of top plate is equipped with sliding slot track, the upper end position of follower lever
In in sliding slot track.
5. a kind of cylinder cam-type damper responds amplifying device according to claim 4, it is characterised in that: cylindrical cam
Between limit frid and bottom plate, there are two nuts, and two nuts are separately fixed at the two sides of cylindrical cam, sets on side baffle
There is thrust bearing, ball-screw passes through thrust bearing from the central through hole of thrust bearing, and thrust bearing is in contact with nut.
6. a kind of cylinder cam-type damper responds amplifying device according to claim 2, it is characterised in that: bottom plate and side
Stiffening plate is equipped between baffle.
7. a kind of cylinder cam-type damper responds amplifying device according to claim 2, it is characterised in that: damper is put
It sets in the upper surface of limit frid, there are gaps between damper and top plate.
8. a kind of cylinder cam-type damper described in accordance with the claim 1 responds amplifying device, it is characterised in that: damper is
Hydraulic damper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910125353.7A CN109811924A (en) | 2019-02-20 | 2019-02-20 | A kind of cylinder cam-type damper response amplifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910125353.7A CN109811924A (en) | 2019-02-20 | 2019-02-20 | A kind of cylinder cam-type damper response amplifying device |
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| Publication Number | Publication Date |
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| CN109811924A true CN109811924A (en) | 2019-05-28 |
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ID=66606972
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910125353.7A Pending CN109811924A (en) | 2019-02-20 | 2019-02-20 | A kind of cylinder cam-type damper response amplifying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498228A (en) * | 2019-08-03 | 2019-11-26 | 上海凯斯大岛精密电子制造有限公司 | A kind of spring leaf automatic separation equipment |
| CN111779150A (en) * | 2020-07-10 | 2020-10-16 | 广州大学 | Frequency modulation amplification mass damper with self-reset function |
| CN113294475A (en) * | 2021-04-29 | 2021-08-24 | 江苏大学 | Cylinder cam type reciprocating inertial container device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101351296B1 (en) * | 2012-10-26 | 2014-01-17 | 김해남 | Earthquake-proof device having single stage structure |
| CN207268032U (en) * | 2017-07-18 | 2018-04-24 | 广州大学 | A kind of new type of passive formula buffering stop block |
| CN108049306A (en) * | 2017-12-08 | 2018-05-18 | 广州大学 | A kind of plough groove type cam mechanism shock insulation limiting device |
| WO2019027942A1 (en) * | 2017-07-31 | 2019-02-07 | Usg Interiors, Llc | Seismic perimeter attachment clip |
-
2019
- 2019-02-20 CN CN201910125353.7A patent/CN109811924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101351296B1 (en) * | 2012-10-26 | 2014-01-17 | 김해남 | Earthquake-proof device having single stage structure |
| CN207268032U (en) * | 2017-07-18 | 2018-04-24 | 广州大学 | A kind of new type of passive formula buffering stop block |
| WO2019027942A1 (en) * | 2017-07-31 | 2019-02-07 | Usg Interiors, Llc | Seismic perimeter attachment clip |
| CN108049306A (en) * | 2017-12-08 | 2018-05-18 | 广州大学 | A kind of plough groove type cam mechanism shock insulation limiting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498228A (en) * | 2019-08-03 | 2019-11-26 | 上海凯斯大岛精密电子制造有限公司 | A kind of spring leaf automatic separation equipment |
| CN111779150A (en) * | 2020-07-10 | 2020-10-16 | 广州大学 | Frequency modulation amplification mass damper with self-reset function |
| CN113294475A (en) * | 2021-04-29 | 2021-08-24 | 江苏大学 | Cylinder cam type reciprocating inertial container device |
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