CN207033006U - A kind of displacement relationship type sinker reacts amplifying device - Google Patents

Abstract

The utility model discloses a kind of displacement relationship type sinker to react amplifying device, it includes pedestal and the equal width cam mechanism on pedestal, position-limited rack, ball-screw, displacement relationship type sinker and sinker fixed seat, the equal width cam mechanism includes four frames and the cam in four frame, the cam is connected with the nut of the ball-screw, the displacement relationship type sinker is arranged in the sinker fixed seat of the side of the equal width cam mechanism, end of the displacement relationship type sinker away from the sinker fixed seat is connected with the side of four frame, the sinker fixed seat upper end is connected with sinker, the position-limited rack is arranged on the periphery of the equal width cam mechanism, the cam mechanism makees straight reciprocating motion under the limitation of the position-limited rack.The utility model can efficiently reduce the injury suffered in earthquake of the structures such as building and bridge.

Description

A kind of displacement relationship type sinker reacts amplifying device

Technical field

Building structure, bridge structure antidetonation shock attenuation technical field are the utility model is related to, more particularly to it is a kind of for building The displacement relationship type sinker reaction amplifying device of structure, bridge structure.

Background technology

Earthquake is one of common natural calamity, strong earthquake meeting heavy damage building structure, bridge structure, is caused big Measure casualties and economic loss.Seismic isolation technology is used as one kind is economical and effective to subtract seismic isolation technology, extensive by engineering circles at present Using.When isolation structure meets with pole rarely occurred earthquake, shock isolating pedestal horizontal displacement is likely to the design load that oversteps the extreme limit, Jin Erzao Into significant damage, the serious threat security of the lives and property.Therefore, will be every, it is necessary to use necessary buffer limit measure to Seismic Isolation of Isolation Layer Shake layer horizontal displacement is limited in safe range.In terms of building structure, bridge structure passively control cushion technique, seismic isolation technology Need to limit the displacement of Seismic Isolation of Isolation Layer by sinker, energy-dissipating and shock-absorbing technology needs to dissipate seismic energy by sinker.Work as use When displacement relationship type sinker such as friction energy dissipation device or metal yield sinker, if sinker displacement is smaller, it is difficult to play Effective energy dissipation capacity；If sinker displacement is larger, needs to use the big stroke sinker of large-tonnage, cause cost higher.

Therefore, developing a kind of sinker reaction amplifying device in finite displacement stroke with good energy dissipation capacity is It is very necessary.

Utility model content

The purpose of this utility model is to solve existing seismic isolation technology using displacement relationship type sinker as friction disappears Can device or during metal sinker, if sinker displacement is smaller, be difficult to play effective energy dissipation capacity, if sinker displacement compared with Greatly, it needs to use the big stroke sinker of large-tonnage, causes the double-barreled question that cost is higher.

In order to solve the above problems, the utility model provides a kind of displacement relationship type sinker reaction amplifying device, its Equal width cam mechanism, position-limited rack, ball-screw, displacement relationship type sinker and sinker including pedestal and on pedestal Fixed seat.The equal width cam mechanism includes four frames and the cam in four frame, the cam and the rolling The nut connection of ballscrew, the sinker that the displacement relationship type sinker is arranged on the side of the equal width cam mechanism are fixed On seat, end of the displacement relationship type sinker away from the sinker fixed seat is connected with the side of four frame, institute State sinker fixed seat upper end to be connected with sinker, the position-limited rack is arranged on the periphery of the equal width cam mechanism, described convex Wheel mechanism makees straight reciprocating motion under the limitation of the position-limited rack.

As the improvement of above-mentioned technical proposal, the position-limited rack includes upper limit baffle plate and two side postive stop baffles, described Upper limit baffle plate is fixedly connected between two side postive stop baffles and is covered in the top of two side postive stop baffles.

As the improvement of above-mentioned technical proposal, a chute, four frame are offered in the middle part of the upper limit baffle plate Top slide be connected in the chute.

As the improvement of above-mentioned technical proposal, the side of four frame, which is provided with, to be used for and the displacement relationship type sinker First junction button of connection.

As the improvement of above-mentioned technical proposal, the cam clamping connection between two nuts, two nuts relative to One thrust bearing is respectively installed on the reverse side of the cam.

As the improvement of above-mentioned technical proposal, the pedestal is provided with multiple mounting holes.

As the improvement of above-mentioned technical proposal, the second junction button is provided with the top of the sinker fixed seat, described The first junction button on two junction buttons and four frames is arranged in same level height.

As the improvement of above-mentioned technical proposal, the side postive stop baffle has one or more for supporting the side limiting block The fixation ribbed stiffener of plate.

As the improvement of above-mentioned technical proposal, friction energy dissipation device can be replaced with metal sinker either other it is identical or The sinker of identity function, fixed form can take welding or bolt connection.

As the improvement of above-mentioned technical proposal, displacement relationship type sinker can be reacted to amplifying device series connection, form displacement Relationship type sinker reacts amplifying device group.It should be noted in cascade process：The constant breadth cam initial rotation position of series connection Put and be not at same position, the present embodiment can more efficiently increase its energy consumption effect.

A kind of displacement relationship type sinker reaction amplifying device provided by the utility model, compared with prior art, tool Have the advantages that：

In the utility model, horizontal movement is converted into by gyration by the effect of ball-screw and constant breadth cam Gyration is changed into linear reciprocating motion again afterwards, thus displacement relationship type sinker occurs limited in allowed band all the time Shift reciprocately, and by rationally designing cam, eccentric distance is adjusted, the amplification effect of power even can reach ten times or tens times. If it is smaller to solve sinker displacement, it is difficult to plays effective energy dissipation capacity, if sinker displacement is larger, needs to use big ton The big stroke sinker in position, causes the double-barreled question that cost is higher.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, the accompanying drawing of embodiment will be made below simple Ground introduction.

Fig. 1 is a kind of solid for displacement relationship type sinker reaction amplifying device that embodiment of the present utility model provides Figure；

Fig. 2 is a kind of section for displacement relationship type sinker reaction amplifying device that embodiment of the present utility model provides Figure；

Fig. 3 is a kind of the wide convex of displacement relationship type sinker reaction amplifying device that embodiment of the present utility model provides Take turns mechanism graphics；

Fig. 4 is the stereogram for the metal sinker that the utility model embodiment provides；

Fig. 5 is the profile for the metal sinker that the utility model embodiment provides；

Fig. 6 is the equal width cam mechanism graphics for the metal sinker that the utility model embodiment provides；

Fig. 7 is the mutual string for multiple displacement relationship type sinkers reaction amplifying device that embodiment of the present utility model provides The connection diagram of connection.

Wherein, 1- ball-screws；11- ball nuts；12- thrust bearings；2- constant breadth cams；The frames of 21- tetra-；22- first Junction button；3- displacement relationship type sinkers；The junction buttons of 31- second；32- sinker fixed seats；4- pedestals；41- mounting holes；5- sides Postive stop baffle；51- upper limit baffle plates；52- ribbed stiffeners；61- the first displacement relationship types sinker reacts amplifying device；62- second Displacement relationship type sinker reacts amplifying device.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

As Figure 1-3, ball-screw 1 is provided with thrust bearing 12, ball-screw 1 by ball nut 11 with it is wide convex The connection of wheel 2, four frames 21 of constant breadth cam 2 are connected by the first junction button 22 with the one end of displacement relationship type sinker 3, upper limit Baffle plate 51 is connected, sinker in the other end of sinker 3 by the sinker fixed seat 32 of the second junction button 31 on the top of four frame 21 Fixed seat 32 is fixed on pedestal 4, and pedestal 4 is provided with mounting hole 41, and side postive stop baffle 5 and ribbed stiffener 53 are fixed with pedestal 4.

When earthquake occurs, the structure such as the building being connected with ball-screw 1 or bridge promotes ball-screw 1 is horizontal to move Dynamic, ball-screw 1, which moves horizontally, drives ball nut 11 to rotate, and side postive stop baffle 5 limits ball nut by thrust bearing 12 11 move horizontally, and ball nut 11, which rotates, drives constant breadth cam 2 to rotate, and the frame 21 of constant breadth cam 2 and four has friction, and promotes Four frames 21 move back and forth, and four frames 21, which move back and forth, drives junction button 22 to move back and forth, and connection 22 reciprocates through energy dissipating The energy-dissipating and shock-absorbing of device 3, building structure or bridge structure energy-dissipating and shock-absorbing are realized.

More preferably, the position-limited rack includes upper limit baffle plate 51 and two side postive stop baffles 5, and the upper limit baffle plate 51 is solid Surely it is connected between two side postive stop baffles 5 and is covered in the top of two side postive stop baffles 51 so that is wide convex Take turns the more stable operation of mechanism.Specifically, two intervals of side postive stop baffle 51 are arranged on along guide screw movement direction and position In the outside of thrust bearing 12.

More preferably, the middle part of the upper limit baffle plate 51 offers a chute, and the top slide of four frame 21 connects It is connected in the chute, four frames 21 do linear reciprocating motion in chute.

More preferably, the side of four frame 21 is provided be used to be connected with the displacement relationship type sinker 3 first and connected Connect button 22.

More preferably, the clamping connection of cam 2 is between two nuts 11, and two nuts 11 are relative to the cam 2 One thrust bearing 12 is respectively installed, to support ball-screw on reverse side.

More preferably, the pedestal 4 is provided with multiple mounting holes 41, is distributed in the edge of pedestal 4, is installed and used for pedestal 4.

More preferably, the top of the sinker fixed seat 32 is provided with the second junction button 31, second junction button 31 with 21 the first junction button 22 is arranged in same level height on four frames, the distance between junction button by sinker 3 size It is determined that.

More preferably, the side postive stop baffle 5 has one or more fixation ribbed stiffeners for being used to support the side postive stop baffle 5 52, ensure the stability of whole mechanism.

More preferably, referring to shown in Fig. 4-Fig. 6, friction energy dissipation device can be replaced with metal sinker either other it is identical or The sinker of identity function, fixed form can take welding or bolt connection.

It should also be noted that, in another embodiment of the utility model, two or more velocity correlation type energy dissipatings It is connected in series with each other between device reaction amplifying device, to form velocity correlation type sinker reaction amplifying device group.For example, two The situation of the velocity correlation type sinker reaction amplifying device concatenation is shown in Figure 7, wherein, First Speed relationship type energy dissipating Device reacts uses a longer ball wire between amplifying device 61 and second speed relationship type sinker reaction amplifying device 62 Multiple cams are concatenated into together by thick stick, complete concatenation work.It should be noted in cascade process：At the beginning of the constant breadth cam of series connection Beginning, turned position was not at same position, can more efficiently increase its energy consumption effect.

In description of the present utility model, it is to be understood that the indicating position such as term " on ", " under ", "left", "right" or Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description, Rather than the device or element of instruction or hint meaning must have specific orientation and specific azimuth configuration and operation, It is thus impossible to it is interpreted as to limitation of the present utility model.In addition, " first ", " second " are merely due to describe purpose, and be not understood that To indicate or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Therefore, define " first ", One or more this feature can be expressed or be implicitly included to the feature of " second ".In description of the present utility model, unless It is otherwise noted, " multiple " are meant that two or more.

, it is necessary to illustrate in description of the present utility model, unless otherwise clearly defined and limited, term " installation " " connected " " connection " etc. should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or integratedly be connected Connect；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected with by intermediary, can To be the connection of two element internals.For the ordinary skill in the art, concrete condition can be regarded and understands above-mentioned art Concrete meaning of the language in the utility model.

Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement The scope of protection of the utility model is also should be regarded as with retouching.

Claims (7)

1. a kind of displacement relationship type sinker reacts amplifying device, it is characterised in that including pedestal and on pedestal etc. Wide cam mechanism, position-limited rack, ball-screw, displacement relationship type sinker and sinker fixed seat, the equal width cam mechanism bag Four frames and the cam in four frame are included, the cam is connected with the nut of the ball-screw, the displacement Relationship type sinker is arranged in the sinker fixed seat of the equal width cam mechanism, and the displacement relationship type sinker is away from institute The end for stating sinker fixed seat is connected with the side of four frame, and the position-limited rack is arranged on the equal width cam mechanism Periphery, the cam mechanism make straight reciprocating motion under the limitation of the position-limited rack, and the position-limited rack includes upper limit baffle plate With two side postive stop baffles, the upper limit baffle plate is fixedly connected between two side postive stop baffles and is covered in two institutes State the top of side postive stop baffle.

A kind of 2. displacement relationship type sinker reaction amplifying device as claimed in claim 1, it is characterised in that the upper limit A chute is offered in the middle part of baffle plate, the top slide of four frame is connected in the chute.

A kind of 3. displacement relationship type sinker reaction amplifying device as claimed in claim 1, it is characterised in that four frame Side be provided with and be used for the first junction button for being connected with the displacement relationship type sinker.

A kind of 4. displacement relationship type sinker reaction amplifying device as claimed in claim 1, it is characterised in that the cam folder It is connected between two nuts, two nuts on the reverse side of the cam relative to being respectively provided with a thrust bearing.

5. a kind of displacement relationship type sinker reaction amplifying device as claimed in claim 1, it is characterised in that on the pedestal Provided with multiple mounting holes.

A kind of 6. displacement relationship type sinker reaction amplifying device as claimed in claim 1, it is characterised in that the sinker It is provided with the second junction button at the top of fixed seat, the first junction button on second junction button and four frames is arranged on same water In flat height.

A kind of 7. displacement relationship type sinker reaction amplifying device as claimed in claim 1, it is characterised in that the lateral spacing position Baffle plate is provided with one or more fixation ribbed stiffeners for being used to support the side postive stop baffle.