CN208455376U - Wideband formula rail resonator damper - Google Patents

Abstract

Wideband formula rail resonance damping system, including elastomer, mass block and spring fastening element, it is characterized by: elastic damping element and mass block are directly fitted by spring fastening element and are installed on rail foot, elastomer is arranged in above mass block, wherein quality number of blocks is two or more, and size may be the same or different, to generate multiple resonance frequencies.

Description

Wideband formula rail resonator damper

Technical field

While urban track traffic offers convenience to people's trip, the vibration and noise generated also annoyings people's Daily life.The utility model belongs to vibration and field of noise control, more particularly to one kind was run for mitigating rail vehicle The Wheel Rail Vibration bring abrasion exception and noise problem issued in journey.

Background technique

Vibration and noise are a kind of most commonly used public hazards in influence face recognised by people, and the development of rail traffic in recent years The problem urgently to be resolved faced.

The horizontal height of Wheel Rail Vibration is very big to rail wear and influence of noise.For control rail vibration, using damping steel The control measures such as rail, engineering circles also have been developed that multiple similar vibration and noise reducing products, and wherein tuning damper is most commonly seen, Its vibration for reducing rail using the vibration absorber that quality, spring, damping system are constituted.Common form such as application No. is 201220172478.9 steel rail vibration damping device, in web of the rail two sides, installation quality block and elastomer block, are auxiliarily fixed with fastener；For another example Application No. is 201110156390.8 rail and its damping shock absorbers, install damping sheet, metal restriction plate in web of the rail two sides Deng absorption rail vibration energy.

Common its structure of steel rail vibration damping device is placed in web of the rail position at present, is fixed by various buckling pieces or fixture, Or it is fixed by pasting with metal plate restraint layer.Its defect is fairly obvious:

1) most of products for slowing down rail vibration by applying damping on rail, application area is small, and damping steel rail does not have Quality or quality are smaller, inhibit the ineffective of vibration；

2) complexity is constructed using the fixed damper of buckling piece and fixture, installation is time-consuming and laborious, and construction efficiency is low；

3) damper for being placed in web of the rail position occupies web of the rail space, influences the installation of signalling arrangement (such as wheel counting apparatus), Interfere ultrasonic examination of the daily maintenance inspection to rail.

4) it by pasting fixed damper, changes over time the influence that may fall off if bonding is insecure and loses effectiveness in vibration suppression Even influence traffic safety；Excessively firm damper is pasted, recycling cannot be dismantled when replacing rail, cause damper Waste；

5) cost is higher.

To overcome disadvantages described above, the resonant mode rail damper (patent No. ZL 2016 that the applicant researches and develops in advance 20329477.9), simple, easy for installation, reliable performance, effectiveness in vibration suppression outstanding feature with structure, can effectively inhibit rail The formation and development of wave mill, reduces wheel track medium-high frequency whistler, and do not influence traffic safety and track daily maintenance, in work Journey spreads the noise reduction effect measured in fact and has been approved, better than international similar product.But the program is to the unconspicuous wideband of peak value Range noise reduction effect has not yet been reached optimal, needs to be improved, to adapt to various different operating conditions.Therefore the utility model is developed Patent.

Utility model content

Wideband formula rail resonance damping system, including elastomer, mass block and spring fastening element, it is characterised in that: bullet Property damping element and mass block are directly fitted by spring fastening element and are installed on rail foot, and elastomer is arranged on mass block Side, wherein quality number of blocks is two or more, and size may be the same or different, to generate multiple resonance frequencies.

Further, it is characterised in that: elastomer is integrated composition.

Further, it is characterised in that: mass block is muti-piece composition, and one piece of elastomer corresponds to two or more quality Block.

Further, it is characterised in that: the elastomer is made of viscoelastic material.

Further, it is characterised in that: the spring fastening element connected on each mass block is two or more than two bullets Item.

Further, it is characterised in that: the side of the mass block or bottom surface form hole or slot, have insulation sleeve in hole slot, Insertion for two toe of spring fastening element.

Detailed description of the invention

Fig. 1 is the utility model resonator damper sectional view.

Fig. 2 is the utility model resonator damper side view.

Fig. 3 is the utility model resonator damper plan view.

Fig. 4 is the utility model resonator damper plan view.

Fig. 5 is the utility model resonator damper plan view.

Specific embodiment

The utility model is described in further detail with implementation method with reference to the accompanying drawing.

In figure: 1. rail；2. elastomer；3. mass block；4. spring fastening element；5. insulation sleeve.

Referring to Fig. 1,2, the wideband formula rail resonator damper of the utility model includes elastomer 2, mass block 3 and elastic buckles Press element 4, in which: elastomer 2 and 3 pieces of at least two mass are directly fitted by spring fastening element 4 and are installed on 1 bottom of rail Portion, 4 one end of spring fastening element are inserted into the hole of mass block 3, and the other end is withheld in the upper of rail ontology, to provide buckle press Mass block 3, elastomer 2 and 1 bottom of rail ontology is set to combine closely.

Mass block 3 can be two or more, and quality can be different, to generate different resonance frequencies, constitute more A independent resonator damper.

Wherein, spring fastening element 4 include with the upper end of the cross bar shape of rail body contacts, connect with mass block 3 two Toe and two intermediate bent sections for connecting upper end and toe.Wherein two toe general parallel orientation, for being inserted into mass block groove Or in hole, downward buckle press can be formed in upper end by intermediate bent section, spring can be used or other can provide elasticity The element of compressing force.Wherein, spring fastening element 4 is provided with insulation sleeve in the part contacted with rail ontology 1 and mass block 3, For anti-locking system leak electricity short-circuit.Wherein, insulation sleeve has certain toughness, intensity and corrosion resistance.Certainly, insulation sleeve can also be with Only be set in the contact portion of 4 rail ontology 1 of spring fastening element, or be positioned only at in the contact portion of mass block 3.

Wherein, elastomer 2 is visco-elastic element or elasticity and damping composite component, can provide restoring force and maintain mass block Vibration.It can be made of natural rubber or high molecular synthetic material.

Wherein mass block 3 is metal block or the suitable block of other quality, and cross sectional shape can be rectangle, circle or ellipse Shape can slot at least one position or be made into hollow, to adjust mass block total quality.

Referring to fig. 2-5, the different specific embodiments of the utility model are shown, in Fig. 2, mass block 3 is two side-by-side, Two mass blocks 3 share a spring fastening element 4 in every side, and two toes of lower end are inserted into two mass blocks 3 respectively In, to generate different resonance frequencies.

Scheme in Fig. 3 is that two toes of 4 lower end of spring fastening element are connected by a horizon bar with Fig. 2 difference, It is formed fluted on described two mass blocks 3, is inserted into for described two toes and cross bar.

In Fig. 4, there are two spring fastening elements 4 for the every side of rail, connect simultaneously with two mass blocks, one of elasticity 4 sets of the fastening part outsides for detaining element 4 in another elasticity.

In Fig. 5, three mass blocks side by side are shown, have been correspondingly formed an elastomer 2 on three mass blocks 3, at least There is the quality of a mass block different from other mass block quality.And the side of each mass block has an elasticity to detain element 4 connections.Can certainly wherein the side of two mass blocks or three mass blocks using an elasticity detain element crimp.

When assembling, the horizon bar of spring and two toes are clamped respectively by tooling, and applied force sends out bending section Change shape, so that certain angle is broken between horizon bar and two toes into two with one's hands, then by the slot of two toes insertion mass block or hole In, horizon bar is pressed in the lower flange of rail ontology, tooling, bending section rebound is unclamped, so that spring applies certain buckle press and incites somebody to action Mass block elastic element and rail are buckled together, and guarantee that elastic element is maintained at elastic range to rail when the vibrations are up and down.

In other scheme, two toes can be not parallel, or even not on another horizontal plane.The end of two toes can also To extend and connect, as long as being inserted into slot or the hole of mass block to realize the transmitting of power, planform can basis It needs to become.

The resonator damper of the utility model is conducive to improve rail to the attenuation rate (dB/m) of vibration, accelerates vibration wave The decaying propagated in rail reduces the averaged energy levels of rail vibration, promotes the decaying of rail amplitude and acceleration, is joining Cooperation can be in wider frequency range interior resonance, to inhibit the rail noise in wider frequency range under.To reach vibration damping Purpose.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and Retouching also should be regarded as the protection scope of the utility model.In addition, although being used some specific terms in this specification, this A little terms do not constitute any restrictions to the utility model just for the sake of facilitating explanation.

Claims (6)

1. wideband formula rail resonator damper, including elastomer, mass block and spring fastening element, it is characterised in that: elasticity resistance Buddhist nun's element and mass block are directly fitted by spring fastening element is installed on rail foot, and elastomer is arranged in above mass block, Wherein quality number of blocks is two or more, and size is identical or different, to generate multiple resonance frequencies.

2. resonator damper according to claim 1, it is characterised in that: elastomer is integrated composition.

3. resonator damper according to claim 1, it is characterised in that: mass block is muti-piece composition, one piece of elastomer pair Answer two or more mass blocks.

4. resonator damper according to claim 1-3, it is characterised in that: the elastomer is by viscoelastic material It constitutes.

5. resonator damper according to claim 1-3, it is characterised in that: the elasticity connected on each mass block Fastening part is more than two springs.

6. resonator damper according to claim 1-3, it is characterised in that: the side or bottom surface of the mass block Hole or slot are formed, has insulation sleeve in hole slot, the insertion for two toe of spring fastening element.