CN209557560U - A kind of stiffness variable frictional damping connector - Google Patents
A kind of stiffness variable frictional damping connector Download PDFInfo
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- CN209557560U CN209557560U CN201920129028.3U CN201920129028U CN209557560U CN 209557560 U CN209557560 U CN 209557560U CN 201920129028 U CN201920129028 U CN 201920129028U CN 209557560 U CN209557560 U CN 209557560U
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- spring
- pressing plate
- damping
- stiffness variable
- universal joint
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Abstract
The utility model provides a kind of stiffness variable frictional damping connector, including pressing plate；Damping structure, laterally it is installed between pressing plate, the damping structure includes two flexible damper bars being arranged symmetrically and the rubber damping block being installed between flexible damper bar, damper bar relative motion in the horizontal direction of stretching, while two pressing plate vertically relative motions of drive；Spring adjustment structure, the spring adjustment structure includes spring catch, spring and nut, spring catch runs through and vertical symmetry is arranged among pressing plate and damping structure, and the spring one end for being socketed in spring pin end is nested on pressing plate, and the other end is fixed by nut and spring catch；Connection structure is arranged at damping structure both ends.Compared with the relevant technologies, stiffness variable frictional damping connector construction provided by the utility model is simple and compact, reliable and stable, difficulty of processing is low, and part exchanging is convenient, not only has high-damping energy consumption, but also whole equipment rigidity is adjustable.
Description
Technical field
The utility model relates to a kind of stiffness variable frictional damping connectors applied to the damping that builds a bridge.
Background technique
It is to mitigate impact using the purpose of flexible connector and absorbs vibrational energy.It is some in the ancient building of China
The wooden building can stand erect thousand, after the big shake of strong wind without falling, exactly take full advantage of flexible connecting structure, encounter the big shake of strong wind in building
When, a certain amount of natural vibration period for swinging extending structure, the wooden structures of load in swing can occur in design for the wooden building
Between phase mutual friction generate damping energy dissipation, two aspect effects are to ensure that the safety of the wooden building structure.Although in modern architecture
Wooden structures building it is seldom, but it is this flexible connection antidetonation thought still on modern bridge and building structure using and
It develops.Flexible connecting device is also extensively used for space flight, firearms and automobile and other industries simultaneously.
Currently, being armored concrete in bridge construction domain agent material, this material has larger bearing capacity, but its
Rigidity is larger, using seperated flexible connecting structure, can the preferable extending structure period, and mitigate impact dissipation energy.At present
The flexible connecting device designed both at home and abroad is mostly rubber block connection, helical spring connection, hydraulic damping connection and air damping
Connection etc..Rubber connection main problem is the aging of rubber, due to the deformation buffer energy-dissipation structure based on rubber parts, rubber
Properties of product are widely different after aging, and are inconvenient to replace rubber, can only replace entire product.Helical spring connects system in work
Make state lower aprons Hookean spring, itself can only convert energy, and cannot dissipate to energy.Hydraulic damping connects not only valence
Lattice are expensive, but also there are Leakage, subsequent maintenance difficulty etc., air-pressure damping connection is generally used for the lesser field of pulling force damping force
It closes, it is equally more demanding to sealing performance.
Therefore, it is necessary to provide a kind of stiffness variable frictional damping connector solution the above technical problem.
Utility model content
The utility model provides a kind of stiffness variable frictional damping connector, and the stiffness variable frictional damping connector is not only
Has high-damping energy consumption, and whole equipment rigidity is adjustable.
The purpose of this utility model is to provide a kind of stiffness variable frictional damping connectors comprising:
Pressing plate, the pressing plate are two；
Damping structure is laterally installed between two pressing plates, and the damping structure includes two flexible resistances being arranged symmetrically
Buddhist nun's stick and the rubber damping block being installed between flexible damper bar, damper bar relative motion in the horizontal direction of stretching, drive simultaneously
Two pressing plate vertically relative motions；
Spring adjustment structure, the spring adjustment structure include spring catch, spring and nut, and spring catch runs through and vertical symmetry
It is arranged among pressing plate and damping structure, the spring one end for being socketed in spring pin end is nested on pressing plate, and the other end passes through spiral shell
Mother fixes with spring catch, and spring can be disk spring or cylindrically coiled spring；
Connection structure is arranged at damping structure both ends, and the connection structure includes the universal joint connecting with flexible damper bar
With the connecting plate being flexibly connected with universal joint, the damper bar that stretches has 6 freedom degrees, keeps 6 freedom degree directions of the connector equal
With damping；
Preferably, the pressing plate upper surface is plane, and lower surface is wavy curved surface, if being symmetrically arranged on the pressing plate
Dry through-hole runs through upper and lower surface, which matches with spring catch, be coaxially provided with counterbore at the lead to the hole site of upper surface and be used for
Fixed spring.
Preferably, triangle broached-tooth design is set on the wavy curved surface.
Preferably, described universal joint one end has universal joint sleeve, and cylindrical body is in damper bar outer end of stretching and is equipped with screw thread,
It is mutually screwed with the internal screw thread of universal joint sleeve；
Preferably, the flexible damper bar inner end is rectangular entity, and upper and lower surface is with the wavy of triangle broached-tooth design
Curved surface, wavy curved surface size are matched with the curved surface of pressing plate；
Preferably, described rectangular physically equipped with several strip grooves corresponding with pressing plate through-hole, for spring catch
Connection, and spring catch can move along strip groove.
Preferably, coating is arranged in the wavy curved surface, and coating is electrodeposited chromium or chemical nickel-phosphorus alloy plating, guarantees that its is wear-resisting
Property, stability and durability.
Preferably, the spring catch both ends are equipped with the screw thread of certain length and nut screws fixation.
Preferably, the universal joint other end is equipped with hole, and setting pin shaft realizes universal joint and connecting plate activity in through hole
Connection.
Preferably, the universal joint sleeve circumferencial direction is evenly equipped with multiple jackscrews, and stretch damper bar and universal joint sleeve spiral shell
It is fixed after line connection positioning by jackscrew.
Compared with the relevant technologies, stiffness variable frictional damping connector provided by the utility model has below beneficial to effect
Fruit:
1) the utility model possesses high-damping effect and damping is adjustable: first is that the friction by stretch damper bar and pressing plate produces
Raw damping effect, second is that making the deformation of rubber damping block generate damping by the relative motion of stretch damper bar and rubber damping block
Effect.Two damping effects are synchronous to be carried out, and the energy consumption effect of entire connector is increased；Pass through replacement different surfaces coefficient of friction
Flexible damper bar or the rubber damping block of different damping ability can be achieved adjustable to the damping of integrated connection device.
2) the utility model is compact-sized and to possess rigidity adjustable: being reduced by replacing the spring of different-stiffness or increasing
Corresponding spring changes the rigidity size of integrated connection device；By the way that several groups spring structure is arranged symmetrically on the outside of pressing plate,
It avoids using big spring, one is the reduction of the surface structure size of entire connector, second is that being conveniently replaceable spring and reduction
Manufacturing cost；
3) the utility model utilizes frictional damping and rubber damping, and structural reliability is high, is not necessarily to hydraulic structure, and liquid is not present
The unreliable situations such as pressure oil leakage, the connector both ends use universal joint connection type, possess 6 freedom degrees.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of stiffness variable frictional damping connector provided by the utility model；
Fig. 2 is the top view of stiffness variable frictional damping connector provided by the utility model；
Fig. 3 is one of the structural schematic diagram of pressing plate in Fig. 1；
Fig. 4 is the second structural representation of pressing plate in Fig. 1；
Fig. 5 is one of the structural schematic diagram of flexible damper bar in Fig. 1；
Fig. 6 is the second structural representation of flexible damper bar in Fig. 1；
Fig. 7 is the structural schematic diagram of universal joint in Fig. 1.
Wherein, 1 is pressing plate, and 2 be spring adjustment structure, and 3 be damping structure, and 4 be connection structure, and 21 be spring catch, and 22 are
Spring, 23 be nut, and 31 be flexible damper bar, and 32 be rubber damping block, and 41 be universal joint, and 42 be connecting plate, and 43 be jackscrew, 44
For pin shaft.
Specific embodiment
The utility model is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case where, the feature in the embodiments of the present invention and embodiment can be combined with each other.For sake of convenience, hereinafter such as
There is "upper", "lower", "left", "right" printed words, only indicates consistent with the upper and lower, left and right direction of attached drawing itself, not to structure
Play restriction effect.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, the utility model include pressing plate 1, spring adjustment structure 2,
Damping structure 3 and connection structure 4, wherein two 1 upper surfaces of pressing plate are plane, and lower surface is waveform curved surface, and waveform is bent
Face need to be handled by special surface, such as electrodeposited chromium, nickel-phosphorus alloy chemical plating etc..Several through-holes are symmetrically arranged on pressing plate 1 to pass through
Lower surface is put on, which matches with spring catch 21 to limit the horizontal movement of pressing plate, and clear size of opening size should be greater than spring
The diameter 1-2mm of pin 21, in upper surface, lead to the hole site is coaxially provided with counterbore for fixed spring 22, and counterbore depth and size should be by
Spring sizes determine.Flexible 31 outer end of damper bar is cylindrical body and is equipped with screw thread, is mutually screwed with the internal screw thread of 41 sleeve of universal joint,
Flexible 31 inner end of damper bar is rectangular entity, and upper and lower surface is the waveform curved surface for having triangle broached-tooth design, waveform curved surface ruler
The very little curved surface with pressing plate 1 matches, and the damper bar 31 that stretches is equipped with several bar shapeds corresponding with 1 through-hole of pressing plate on cuboid
Slot is used for the connection of spring catch 21, and bar shaped groove width is determined according to actual design amplitude；41 sleeve one end of universal joint is equipped with interior spiral shell
Line is threadedly coupled by internal screw thread with the outer end of flexible damper bar 31；The circumferencial direction of universal joint 41 is evenly equipped with multiple jackscrews 43,
Flexible damper bar 31 is fixed after being threadedly coupled positioning with universal joint 41 by jackscrew 43；41 other end of universal joint is equipped with through-hole, leads to
It crosses pin shaft 44 and connecting plate 42 cooperates；
Two pressing plates 1 are arranged symmetrically, and damping structure 3 is laterally installed between pressing plate 1, the wave of pressing plate 1 when initially installing
The waveform application of a surface of shape curved surface and flexible damper bar 31, it is ensured that spring catch 21 can be damped through the through-hole of pressing plate 1 with flexible
The corresponding strip groove of stick 31, spring 22 are socketed in 21 both ends of spring catch, and one end of spring 22 passes through the heavy of 1 upper surface of pressing plate
Hole is nested on pressing plate 1, and with moving radially for limited spring 22, the other end screws fixation by nut 23 and spring catch 21.By
Cooperated in pressing plate 1 and flexible damper bar 31 using curved surface, when flexible 31 transversal stretching of damper bar, curved surface is staggered with credit union, leads
Cause pressing plate 1 move outward, spring 22 compression generate reaction force acts on pressing plate 1 so that pressing plate 1 push down always it is flexible
Damper bar 31 generates frictional resistance with pressing plate 1, with flexible damper bar 31 in the movement of flexible 31 transversal stretching of damper bar
Displacement increases, and the compression of spring 22 is bigger, and the reaction force of generation is increasing, and the pulling force that damper bar 31 provides that stretches is also bigger.
Flexible 31 inside of damper bar is bonded consolidation with rubber damping block 32, when flexible 31 transversal stretching of damper bar, rubber damping block meeting
It is squeezed or stretches and partial elastic power is provided, while playing the role of damping energy dissipation, 31 outer end of damper bar of stretching uses cylinder
Type entity is simultaneously connect equipped with screw thread with universal joint 41.Universal joint 41 is connect by pin shaft 44 with connecting plate 42.
The working principle of the utility model are as follows:
Pressing plate 1 is arranged symmetrically, damping structure 3 is laterally installed between pressing plate 1, and stretch 31 outer end of damper bar and universal joint
Be threadedly coupled, inner end connect with rubber damping block, spring catch 21 runs through and vertical symmetry be arranged in pressing plate 1 and damping structure 3 it
In, 22 one end of spring for being socketed in 21 end of spring catch is nested on pressing plate 1, and the other end is screwed by nut 23 with spring catch 21
It is fixed.When connector both ends are by axial force, flexible damper bar 31 inside and outside stretches, and drives briquetting 1 to move outward, due to spring
22 are fixed by nut 23, the influence that compression block 1 is displaced outwardly at this time, and spring 22 compresses, and spring force reacts on briquetting 1, makes
It obtaining briquetting 1 and more compresses flexible damper bar 31, the flexible damper bar 31 of this process remains that relative friction moves with briquetting 1, by
The energy of both ends input is converted into frictional heat energy, and as the displacement of flexible damper bar 31 increases, the compression of spring 22 is bigger, generation
Reaction force is increasing, and the pulling force that damper bar 31 provides that stretches is also bigger；Similarly, it when connector both ends are by axial force, stretches
Contracting damper bar 31 inside and outside stretches, and can compress or stretch rubber damping block, absorbs both ends input by the deformation of rubber damping block
Energy.The rigidity and spring rate of connector have close ties, by the adjusting to spring rate and initial pressure, can adjust indirectly
Save the stiffness characteristics and pressure range of connector；By the rational deployment to structure, several springs 22 are arranged in briquetting 1
Periphery, one is that of avoiding using big spring, second is that advantageously ensuring that stability of entire attachment device during tension and compression, simultaneously
Also help installation and replacement.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other relevant technical fields, are also included in the patent protection scope of the utility model.
Claims (10)
1. a kind of stiffness variable frictional damping connector characterized by comprising
Pressing plate, the pressing plate are two；
Damping structure is laterally installed between two pressing plates, and the damping structure includes two flexible damper bars being arranged symmetrically
And the rubber damping block being installed between flexible damper bar, damper bar relative motion in the horizontal direction of stretching, while driving two
Pressing plate vertically relative motion；
Spring adjustment structure, the spring adjustment structure include spring catch, spring and nut, and spring catch runs through and vertical symmetry is arranged
Among pressing plate and damping structure, the spring one end for being socketed in spring pin end is nested on pressing plate, the other end by nut with
Spring catch is fixed；
Connection structure, be arranged at damping structure both ends, the connection structure include the universal joint being connect with flexible damper bar and with
The connecting plate that universal joint is flexibly connected, the damper bar that stretches have 6 freedom degrees, all have 6 freedom degree directions of the connector
Damping.
2. stiffness variable frictional damping connector according to claim 1, which is characterized in that the pressing plate upper surface is flat
Face, lower surface are wavy curved surface, several through-holes are symmetrically arranged on the pressing plate through upper and lower surface, the through-hole and spring
Pin matches, and counterbore is coaxially provided at the lead to the hole site of upper surface for fixed spring, spring includes disk spring, cylindrical screw
Spring.
3. stiffness variable frictional damping connector according to claim 2, which is characterized in that set on the wavy curved surface
Set triangle broached-tooth design.
4. stiffness variable frictional damping connector according to claim 3, which is characterized in that described universal joint one end has
Universal joint sleeve, damper bar outer end of stretching is cylindrical body and is equipped with screw thread, is mutually screwed with the internal screw thread of universal joint sleeve.
5. stiffness variable frictional damping connector according to claim 3 or 4, which is characterized in that the flexible damper bar
Inner end is rectangular entity, and upper and lower surface is the wavy curved surface with triangle broached-tooth design, the song of wavy curved surface size and pressing plate
Face matches.
6. stiffness variable frictional damping connector according to claim 5, which is characterized in that described rectangular to be physically equipped with
Several strip grooves corresponding with pressing plate through-hole, for the connection of spring catch, and spring catch can move along strip groove.
7. stiffness variable frictional damping connector according to claim 6, which is characterized in that the wavy curved surface setting
Coating, coating are electrodeposited chromium or chemical nickel-phosphorus alloy plating, guarantee its wearability, stability and durability.
8. stiffness variable frictional damping connector according to claim 7, which is characterized in that the spring catch both ends are equipped with
The screw thread and nut of certain length screw fixation.
9. stiffness variable frictional damping connector according to claim 8, which is characterized in that the universal joint other end is set
There is hole, setting pin shaft realizes that universal joint is flexibly connected with connecting plate in through hole.
10. stiffness variable frictional damping connector according to claim 9, which is characterized in that the universal joint sleeve circle
Circumferential direction is evenly equipped with multiple jackscrews, and flexible damper bar is fixed after being threadedly coupled positioning with universal joint sleeve by jackscrew.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129028.3U CN209557560U (en) | 2019-01-24 | 2019-01-24 | A kind of stiffness variable frictional damping connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129028.3U CN209557560U (en) | 2019-01-24 | 2019-01-24 | A kind of stiffness variable frictional damping connector |
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| Publication Number | Publication Date |
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| CN209557560U true CN209557560U (en) | 2019-10-29 |
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| CN201920129028.3U Active CN209557560U (en) | 2019-01-24 | 2019-01-24 | A kind of stiffness variable frictional damping connector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578487A (en) * | 2019-01-24 | 2019-04-05 | 湖南中腾土木工程技术有限公司 | A kind of stiffness variable frictional damping connector |
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2019
- 2019-01-24 CN CN201920129028.3U patent/CN209557560U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578487A (en) * | 2019-01-24 | 2019-04-05 | 湖南中腾土木工程技术有限公司 | A kind of stiffness variable frictional damping connector |
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