CN207005173U - A kind of isolation mounting - Google Patents

Abstract

A kind of isolation mounting, isolation mounting, including the first elastic cavity, at least two particulate materials in first elastic cavity, it is characterised in that：The volume of every kind of particulate material, quality, varying hardness.The utility model, both with Compressive Bearing Capacity, has vertical elastic power, vibration damping and vibration isolation effect is more again relative to prior art.

Description

A kind of isolation mounting

Technical field

It the utility model is related to a kind of isolation mounting, more particularly to a kind of there is good vibration isolation and damping effect in vertical direction The isolation mounting of fruit.

Background technology

The track traffics such as subway bring people it is convenient while, also because high-speed motion produce vibration and noise have impact on The life of subjective reflection, it is especially the most aobvious to the adverse effect of building with dither caused by vertical direction during subway circulation Write.Isolation mounting because it has horizontal distortion, vertical tensile capacity and the feature that automatically resets, and be widely used in bridge, pier, The places such as building.

Existing isolation mounting mainly includes board-like rubber device, air spring assembly, oil damping-steel spring combination dress Put.Such as patent document 1, (Patent No. ZL200620163864.6, notification number are that CN200992679Y Chinese utility model is special Profit《Rubber vibration isolation support》) disclosed in rubber vibration isolation device, the device includes upper plate, lower plate and between upper plate and lower plate Vibration isolator, the vibration isolator are mainly made up of rubber, and at least two layers of reinforcing plate is provided with rubber, is between adjacent two layers reinforcing plate Rubber layer, caused vibration in subway circulation is weakened by the elasticity and damping characteristic of rubber, so as to reach vibration damping effect Fruit.

(Patent No. ZL201210094206.6, Publication No. the CN102628486A Chinese utility model of patent document 2 Patent application《Variation rigidity variable damping air isolation mounting》) disclosed in a kind of air spring, the air spring mainly include fix Bottom cylinder, moving cylinder of the inside filled with gas for being buckled on fixed bottom cylinder and sealing against contact, connection moving cylinder and fixation The throttle pipe of bottom cylinder and the throttle valve plate inside throttle pipe, when there is vibration to be passed to from bottom, vibrate through fixed bottom cylinder It is set to produce up-down vibration, when fixed bottom cylinder vibrates upwards, the gas in moving cylinder is compressed, air pressure increase, so as to gas Fixed bottom cylinder is flowed to through throttle pipe, when by throttle valve plate, certain damping is produced, so as to consume the energy of vibration.

And for example (Patent No. 200920073177.9, the China that notification number is CN201420308Y are practical new for patent document 3 Type patent《Steel ball-spring vibration isolation apparatus structure》) disclosed in isolation mounting, the device include bottom base, be symmetrically arranged at Steel ball on bottom base and the upper cover plate on steel ball, at least one set of vertical damping bullet is provided between upper cover plate and bottom base Spring, when producing vibration, bottom base produces displacement with upper cover plate by steel ball, and by the restoring force of spring, upper cover plate is with Pedestal recovers to original position, to offset vibration.

Above-mentioned three kinds of vibration isolation supports can realize a certain degree of vibration damping and vibration isolation effect, but board-like rubber in patent document 1 Though device, to vibration isolation function, is difficult to the requirement for meeting vertical vibration damping and vibration isolation with sufficiently large Compressive Bearing Capacity and level；Specially Though the air spring in sharp document 2 can realize vertical vibration isolation function, Compressive Bearing Capacity and damped coefficient deficiency, can not be applicable compared with The plant equipment and building of weight；Though the combination unit in patent document 3 has vertical damper function, the limit of steel spring Compressive Bearing Capacity is difficult to improve, and resistance to medium and corrosion resistance are poor.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of resistance to compression carrying for above-mentioned state of the art Power is big, the isolation mounting of the permanent durable vertical vibration damping and vibration isolation function of tool.

Technical scheme is used by the utility model solves above-mentioned technical problem：A kind of isolation mounting, including the first bullet Property chamber, at least two particulate materials in first elastic cavity, it is characterised in that：The body of every kind of particulate material Product, quality, varying hardness.

Further, a variety of particulate materials are the combination of uniformly-graded sand particle, lead sweat and elastic granule, described Uniformly-graded sand grain diameter ＜ 2mm, the lead sweat particle diameter are 2mm, and the particle diameter of the elastic granule is 2~4mm, and three presses one Certainty ratio coordinates.The particle diameter of uniformly-graded sand particle is minimum, and the particle diameter of lead sweat is placed in the middle, and the particle diameter of elastic granule is maximum, and particle diameter is big Small relation is in dense state after may be such that three kinds of material mixs, and appropriate mixing ratio can guarantee that the vibration isolation effect of isolation mounting Fruit and resistance to compression effect.

Further, internal gassiness second elastic cavity, second bullet are also included in first flexible cavity Property a chamber external conduit be used for inflation/deflation to adjust the air pressure in the second elastic cavity, on upper end of the conduit through the first elastic cavity Through hole stretch out.The structure convenient use person adjusts the pressure of the second elastic cavity by inflated for deflated, and then makes device Vertical rigidity reaches design load.

Further, the top and bottom of first elastic cavity respectively stretch out, and are correspondingly formed first neck, respectively Two necks, the first neck end are provided with the first shrouding being connected with it by fixation kit, and the second neck end is set There is the second shrouding being connected with it by fixation kit.The setting of shrouding can increase the extraneous contact area with isolation mounting, with This improves the stability that isolation mounting is placed, so as to improve the vibration isolating effect of device.

Further, the fixation kit includes bolt, flange, and circle is correspondingly provided with first shrouding, the second shrouding The pilot hole of circumferential direction arrangement, after the bolt passes through the pilot hole, end is by described in the perforation abutting on the flange The outer wall of first elastic cavity, the nut upper edge of the bolt flush with first shrouding, the second shrouding, the tail of the flange Portion forms direction along neck and abutted with the outer wall of the neck, so as to the steadiness that realization device is overall.

Further, the intersection of second elastic cavity and conduit is subsidized using fibre reinforced rubber, the conduit Intersection with the upper end of the first elastic cavity is sealing rubber ring.

Further, first elastic cavity is made up of nexine, intermediate layer and outer layer, and the nexine is enhancing rubber layer, Intermediate layer is carbon fibre cloth layer, and outer layer is rubber layer, and the elastic granule is silica gel particle or rubber grain, and described second is elastic Chamber is divided into nexine and outer layer, and the nexine is butyl layers, and outer layer is fibre reinforced rubber layer.Strengthen rubber abrasive-resistance and close Envelope property is good, helps to maintain profile of the device under gravity load effect constant, is easy to vibrate, transports and construction and installation；Carbon is fine It is high to tie up cloth tensile strength, sufficiently large sidewise restraint can be provided for internal filler particles, and then make device that there is enough resistance to compressions Bearing capacity；Rubber media-resistant, ageing-resistant performance are good, can guarantee that the durability of device；The filler particles material inside device, it can incite somebody to action The vertical pressure that device is born is converted into the lateral force of the first elastic cavity by the power transmission skeleton of uniformly-graded sand, and then is interior Portion's filler provides sidewise restraint；The air-tightness of butyl rubber is good, and fibre reinforced rubber tensile strength is big and wear-resisting, is made with it To store the medium of gas, the good sealing gas of energy, it is ensured that the air-tightness inside isolation mounting, improve effectiveness in vibration suppression.

Further, first elastic cavity is made up of multiple elastic chamber laid out in parallel, and each elastic intracavitary includes Second elastic cavity, upper end, the lower end of the multiple elastic chamber are integrally formed respectively.

Further, the second elastic cavity of each elastic intracavitary is multiple, and multiple second elastic cavities are led by described Pipe is connected in series.

Further, first elastic cavity is integrally formed by multiple elastic chamber series connection, and multiple second elastic cavities are by institute State conduit to be connected in series, each elastic intracavitary at least corresponds to the second elastic cavity described in one.

Further, when adjacent elastic chamber is integrally formed, groove is formed in junction, is arranged in the groove suitable with it The ring body matched somebody with somebody, first elastic cavity, the second elastic cavity are spherical or elliposoidal.Device can further be reduced by the structure Vertical rigidity, increase damped coefficient, improve vibration damping and vibration isolation effect.

A kind of method for designing isolation mounting as described above, it is characterised in that：

Set damping design value and rigidity Design value；

Lead sweat required in the isolation mounting and sand-grain volume are determined according to the damping design value；

Test vertical rigidity value when the common accounting of both lead sweat and sand grains is 100%；

According to the vertical rigidity value and the difference of rigidity Design value, it is determined that the volume of required rubber grain；

According to the cumulative volume after above-mentioned all particle mixs, the volume and chi of the first elastic cavity of the isolation mounting are determined It is very little.Accordingly, isolation mounting can be designed by adjusting the volume mix ratio of elastic granule, lead sweat and uniformly-graded sand particle Vertical rigidity and damping.

Compared with prior art, the utility model has the advantage of：By by sand grains, lead sweat and elastic granule according to certain Ratio coordinates forms isolation mounting in flexible cavity, when making full use of the elastomeric material be in graininess, energy shape between particle Into the effect of spring-like series connection, reduce the vertical rigidity of device, the damping needed for vertical vibration damping can be provided using lead sweat, uniformly Graded sand particle is in drying regime, when filling the gap between elastic granule and lead sweat, can as elastic granule and lead sweat it Between power transmission skeleton, and provide power consumption damping by vertical fricting movement for device so that isolation mounting have it is good Vibration isolating effect and resistance to compression bearing capacity；And when placing gassiness second cavity in the first cavity, the gas in the second cavity Body also can provide vertical elastic and restoring force so that device both had by changing the power transmission skeleton between external particle for device Compressive Bearing Capacity, there is vertical elastic power again, vibration damping and vibration isolation effect is more.

Brief description of the drawings

Fig. 1 is the isolation mounting structural representation of the utility model embodiment one；

Fig. 2 is the cut-away view of the isolation mounting of the utility model embodiment one；

Fig. 3 is the cut-away view of the isolation mounting connecting conduit inflation/deflation of the utility model embodiment two.

Fig. 4 is the cut-away view of the isolation mounting connecting conduit inflation/deflation of the utility model embodiment three；

Fig. 5 is the flow chart that the utility model embodiment one designs isolation mounting；

Fig. 6 is the vertical loading force-displacement curve figure obtained according to the utility model embodiment one.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing embodiment.

Embodiment one

As shown in Figure 1-2, it is a preferred embodiment of the present utility model, the isolation mounting includes the first shrouding 5, second Shrouding 9, outer packing utricule 8, the inside filler particles material of outer packing utricule 8 are provided between the first shrouding 5 and the second shrouding 9 11.Wherein, upper and lower shrouding 5 and 9 is the stainless steel with bolt hole, is fixed on by clamping screw 6 and aluminium alloy flange 7 outer The upper and lower side of utricule 8 is packed, and is connected by corner pre-embedded bolt with upper and lower part building structure.

Outer packing utricule 8 divides for three layers：Nexine is the enhancing rubber of wearability and good airproof performance；Intermediate layer is tensile strength High carbon cloth；Outer layer is media-resistant and the good rubber of ageing-resistant performance.Enhancing rubber layer helps to maintain device conducting oneself with dignity Profile under load action is constant, is easy to vibrate, transports and construction and installation；The carbon fibre cloth layer of high-tensile can provide enough Big sidewise restraint, and then make device that there is enough Compressive Bearing Capacities, it can be widely applied to large and medium-sized building structure；Resistance to Jie Matter and ageing-resistant rubber layer are then used for the durability for ensureing device.

Inside stuffing 11 is formed by the particulate matter mix of three kinds of different materials and particle diameter, respectively particle diameter be less than 2mm uniformly-graded sand particle, the lead sweat that particle diameter is 2mm, and the elastic granule that particle diameter is 2~4mm, such as silica gel or rubber Grain.The particle diameter of uniformly-graded sand particle is minimum, and the particle diameter of lead sweat is placed in the middle, and the particle diameter of elastic granule is maximum, and particle size relation can So that dense state is in after three kinds of material mixs.After the inside filler particles material of outer packing utricule 8, the vertical pressure of device leads to The power transmission skeleton for crossing uniformly-graded sand is converted into the lateral force of outer packing utricule, and then is provided laterally about for inside stuffing Beam.

Elastic granule provides the vertical rigidity and elastic restoring force needed for vibration isolation for device.Preferably, elastic granule can be with For silica gel, rubber or other elastomeric materials.When elastomeric material is in graininess, spring-like series connection can be formed between particle Effect, can reach when vertical rigidity is relative to bulk smaller.Lead sweat is mainly the damping needed for the vertical vibration damping of device offer, is had There is runback bit function.Uniformly-graded sand particle requirement is in drying regime, is mainly used in filling between elastic granule and lead sweat Gap, it is on the other hand device also by vertical fricting movement on the one hand as the power transmission skeleton between elastic granule and lead sweat Power consumption damping is provided.

, can be by adjusting elastic granule, lead sweat and uniformly-graded sand particle in order to design rational isolation mounting Volume mix ratio, design vertical rigidity and the damping of isolation mounting.Its design method is：First set damping design value and just Spend design load；Then as the lead and sand-grain volume needed for damping design value determining device；Both re-test lead and sand particle are common Vertical rigidity value when accounting is 100%；By above-mentioned vertical rigidity value and the difference of rigidity Design value, required rubber is further determined that The volume of glue particle；By the cumulative volume after above-mentioned all particle mixs, the volume and design size needed for outer packing utricule are determined. Design cycle is as shown in Figure 5.

Specifically, it is 150mm to devise outer packing utricule maximum gauge by Fig. 1 during experiment, and total height is the upper of 90mm State isolation mounting.Under four operating modes shown in table 1, make vertical loading using universal hydraulic testing machine, test its vertical rigidity With damping (measurement index of damping is the energy loss factor).

The measurement condition of table 1

For independent Damping energy dissipation behavior, the volume mix ratio phase of sand particle and lead sweat in above-mentioned operating condition of test Together, can be needed to adjust both mix ratios according to power transmission in Practical Project.Gradually dropped by 100% with the ratio of rubber grain As little as 0%, sand particle and lead sweat proportion also gradually scale up.Test obtained force-displacement curve as shown in fig. 6, The energy loss factor and vertical rigidity test result are as shown in table 2.

Vertical rigidity and the energy loss factor test result during 2 each operating mode of table

Result of the test shows, during operating mode one (rubber grain accounts for 100%), vertical rigidity is minimum, and the energy loss factor is also most It is small.As rubber grain proportion is progressively decreased to 75%, 50%, 25% and 0% (operating mode two to operating mode five), vertical rigidity Also it is significantly increased therewith, illustrates that the vertical vibration isolation performance (Low rigidity characteristic) of device is mainly provided by rubber grain.In addition, with Lead particle and sand particle close accounting weight and are gradually increased to 100% (operating mode one to operating mode five), the energy loss factor of device by 0% Also 12.1% is gradually increased to by 5.8%, damping energy dissipation effect is significantly increased.So in order to obtain having good vibration isolating effect With the device of anti-pressure ability, the ratio of rational proportion sand grains, lead sweat and rubber grain according to demand is needed.

Embodiment two

The present embodiment is the improvement carried out on the basis of embodiment one, remainder all same, be will not be repeated here, only Improvements are illustrated.

As shown in figure 3, air bag 4 is additionally provided with outer packing utricule 8, filled with gas in air bag 4.Air bag 4 can be external one Copper pipe 1, copper pipe 1 are stretched out by the intermediate throughholes of the first shrouding 5, and the intersection of air bag 4 and copper pipe 1 uses fibre reinforced rubber 3 Reinforcement, when the value that vertical rigidity and the constructor of isolation mounting want deviates larger, it can be inflated or put by copper pipe 1 Gas, so that the vertical rigidity of isolation mounting reaches required value, because air bag 4 is subjected only to the pressure of neighboring particles material application Power, conversely, when the bladder inflates, intergranular contact is even closer, and the height of isolation mounting uprises, and is corresponding with isolation mounting Vertical rigidity is big, and during air bag deflation, neighboring particles are diminished by the extruding of air bag so that intergranular contact becomes relatively loose Dissipate, now with respect to step-down, the vertical rigidity that correspond to isolation mounting diminishes the height of isolation mounting, so can be by adjusting air bag 4 pressure born, to cause the vertical rigidity of isolation mounting to reach required value.The intersection of copper pipe 1 and the first shrouding 5 uses close Seal with elastometic washer 2 is sealed, with anti-gas-leak.Certainly, air bag 4 can be designed into globulate or elliposoidal as needed, so that bringing about the desired sensation The compression of capsule surface is more uniform, improves vibration damping and vibration isolation effect.

The packaging of inner balloon 4 is made up of two layers of rubber, and nexine is adopted as butyl rubber, and air-tightness is good；Outer layer is that carbon is fine Dimension enhancing rubber, tensile strength is big and wearability is good.Because the material that air bag uses can cause the rubber wrapper of air bag to avoid Tension phenomenon so that the security of device is substantially improved.

For the isolation mounting when occurring to exciting, intergranular fricting movement can provide power consumption damping for vertical vibration damping, from And make its damped coefficient much larger than the air spring of same volume, and due to the rubber using special substance, can media-resistant and antifriction Wipe, so as to which effect is also superior to oil damping-steel spring combination unit.

Embodiment three

Embodiment three is the improvement to embodiment two, herein only to being illustrated at improvement.

The air bag of the isolation mounting is connected by copper pipe 1 by multiple air bags 4 and formed, and outer packing utricule is by multiple outer packing capsules The series connection of body 8 is integrally formed, and forms groove in adjacent shaping junction, and each air bag 4 corresponds to respectively is located at corresponding outer packing In utricule 8, endless member 10 can be also set up in the groove of integrally formed outer packing utricule, due to single outer packing utricule Combination with air bag has vertical elastic, when multiple outer packing utricules and air bag combined serial one isolation mounting of formation, root Understand that the device can further reduce the vertical rigidity of system, increase damped coefficient according to spring tandem principle, so as to vibration damping and vibration isolation It is better.

Although preferred embodiment of the present utility model described in detail above, it is to be clearly understood that for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within any modification, equivalent substitution and improvements made etc., should be included within the scope of protection of the utility model.

Claims (9)

1. a kind of isolation mounting, including the first elastic cavity, at least two particulate materials in first elastic cavity, its It is characterised by：The volume of every kind of particulate material, quality, varying hardness.

2. isolation mounting according to claim 1, it is characterised in that：Particulate material in first elastic cavity is equal The combination of even graded sand particle, lead sweat and elastic granule, the uniformly-graded sand grain diameter ＜ 2mm, the lead sweat particle diameter are 2mm, the particle diameter of the elastic granule is 2~4mm.

3. isolation mounting according to claim 2, it is characterised in that：Also include in first elastic cavity internal full of sky Second elastic cavity of gas, the external conduit of the second elastic cavity are used for inflation/deflation to adjust the air pressure in the second elastic cavity, institute The through hole stated on upper end of the conduit through the first elastic cavity stretches out.

4. isolation mounting according to claim 3, it is characterised in that：The top and bottom of first elastic cavity are each outwards Extension, is correspondingly formed first neck, second neck respectively, and the first neck end is provided with to be connected with it by fixation kit First shrouding, the second neck end are provided with the second shrouding being connected with it by fixation kit.

5. isolation mounting according to claim 4, it is characterised in that：The fixation kit includes bolt, flange, and described the The pilot hole of circumferencial direction arrangement is correspondingly provided with one shrouding, the second shrouding, after the bolt passes through the pilot hole, end warp The perforation crossed on the flange abuts the outer wall of first elastic cavity, the nut upper edge of the bolt and first envelope Plate, the second shrouding flush, and the afterbody of the flange forms direction along neck and abutted with the outer wall of the neck.

6. isolation mounting according to claim 5, it is characterised in that：The intersection of second elastic cavity and conduit uses Fibre reinforced rubber is subsidized, and the intersection of the upper end of the conduit and the first elastic cavity is sealing rubber ring；First bullet Property chamber be made up of nexine, intermediate layer and outer layer, the nexine for enhancing rubber layer, intermediate layer is carbon fibre cloth layer, and outer layer is rubber Glue-line, the elastic granule are silica gel particle or rubber grain；Second elastic cavity is divided into nexine and outer layer, and the nexine is fourth Base rubber layer, outer layer are fibre reinforced rubber layer.

7. according to the isolation mounting any one of claim 3-6, it is characterised in that：First elastic cavity is by more height Elastic cavity laid out in parallel is formed, and each elastic intracavitary includes the second elastic cavity, upper end, the lower end point of the multiple elastic chamber It is not integrally formed；Second elastic cavity of each elastic intracavitary is multiple, and multiple second elastic cavities are connected by the conduit Connection.

8. according to the isolation mounting any one of claim 3-6, it is characterised in that：First elastic cavity is by more height Elastic cavity series connection is integrally formed, and multiple second elastic cavities are connected in series by the conduit, each elastic intracavitary at least corresponding one Individual the second described elastic cavity.

9. isolation mounting according to claim 8, it is characterised in that：When adjacent elastic chamber is integrally formed, in junction Groove is formed, is arranged the ring body being adapted to it in the groove, first elastic cavity, the second elastic cavity are spherical or ellipsoid Shape.