CN205100035U - High -elastic damping backing plate - Google Patents

Abstract

The utility model provides a high -elastic damping backing plate, has a convex structure, promptly body upper and lower two sides all around evenly distributed have square terraced boss, the edgewise is seen and is formed the continuous wave shape wave, the upper and lower dual evenly distributed of intermediate position has height, short round platform on the body, and each other misplaces the top and bottom table facial features. Under the effect of load, all around square boss output flexural deflection coexists the compressing deformation, and the resilience is good, and deformation resumes fast, and there is the shearing deformation in the especially short platform department of middle round platform to with the flexural deflection, there is the strong component and props. The rigidity accessible of backing plate changes the boss size of a dimension, and the difference in height of height platform, the inclination of boss change and product body variation in thickness is adjusted, can use the resilient sleeper -bearing of the low rigidity of thermoplastic elastomer material preparation of high rigidity, make it have better elasticity, and the height bears, the excellent performance that synthesize such as excellent fatigue resistance and better damping effect.

Description

A kind of high-elastic vibration attenuation pad

Technical field

The utility model relates to a kind of high-elastic vibration attenuation pad, mainly use under iron chair in track traffic, the high-elastic vibration attenuation pad of the Low rigidity that rigidity is adjustable, relates in particular to the Low rigidity and adjustable high-elastic vibration attenuation pad that use in fastener system in a kind of track traffic.

Background technology

Current domestic railway is according to the difference of form of structure, Ballast track and non-fragment orbit can be divided into, Ballast track is traditional form of structure, extensive use at home and abroad, its construction cost is low, noise transmission scope is little, the construction period is short, but along with the raising of railway operation rate request, Ballast track faces the problems such as critical speed, bridge upward stability, railway ballast splashing to be difficult to solve.Non-fragment orbit is a kind of track structure form with the little material substitution railway ballast material of good endurance, plastic deformation, due to rubble railway ballast railway roadbed, track keeps the ability of geometry to improve, the corresponding raising of track stability, maintenance load reduces, economic results in society are remarkable, at home and abroad more and more paid attention to, elasticity without slag track provides primarily of fastener system, and the elasticity of fastener system provides primarily of resilient sleeper-bearing under resilient sleeper-bearing under iron chair and rail, and the resilience of resilient sleeper-bearing is good, and rigidity is low, good damping result, elastic polyester base plate can utilize flexure simultaneously, shear and compressive strain, provides elasticity, and deformation recovers very fast, the rigidity of vibration attenuation pad, depend on that the materials and structures of backing plate determines jointly in resilience and application life etc., the vibration attenuation pad of current Low rigidity adopts material rubber or polyurethane micropore elastomer material, rubber good damping result in early stage, but affect by environment for use, sulphide bond ruptures, product stickness, effectiveness in vibration suppression has decline and causes application life short, replacement of products frequency is high, microporous polyurethane backing plate extensively should in high ferro circuit, this product is microporous foam, hot strength is low, weather resistance is poor, resistance to low temperature is poor, therefore use and also there is very large limitation, the domestic bibliographical information that there is no is applied to shipping circuit.Notification number is: CN201330356Y patent " the high-elastic vibration attenuation pad of Low rigidity " has orthogonal two-way arch trench at body upper and lower surface, also can be trapezoidal groove, it is square projection that result defines many surfaces, be evenly distributed in body upper and lower surface, and upper and lower mutual dislocation, four sides of projection are the vallecular cavity of groove.Prior art reckons without actual service condition, is designed to projection and is all uniformly distributed, and four weekly assemblies destroy prior to mid portion or lost efficacy and cause life of product to shorten.

Utility model content

The purpose of this utility model is to provide a kind of high-elastic vibration attenuation pad, under can be used for passenger-cargo blended line Low rigidity plate, due to the structure that it is special, make backing plate can simultaneously by bend and shearing provides high resilience, low Static stiffness and the output ratio of Q-switching to free running, the comprehensive result of use of fastener system can be given full play to, make rail supported point more flexible.

The utility model is achieved through the following technical solutions: a kind of high-elastic vibration attenuation pad, comprise body and be distributed in the boss composition on body, the upper and lower faces of described body is evenly distributed with boss, the surrounding of body is evenly distributed with trapezoid boss, in the arrangement of body upper and lower faces mutual dislocation, form continuous wavy shaped configuration; The centre position of body, is evenly distributed with the round platform that height differs, and described high frustum cone height is consistent with described trapezoid boss, and short frustum cone height is lower than high round platform, and round platform is arranged in body upper and lower surface mutual dislocation.Short frustum cone height needs to arrange according to practical stiffness, but short round platform must not be distributed in the two ends of product, otherwise can cause product failure.

Further, trapezoid boss is provided with 1-3 row;

Further, trapezoid boss cross section is square;

Further, high-elastic vibration attenuation pad material is polyester elastomer (TPEE);

Further, the difference in height 1.5 ~ 3mm of height round platform (2,3);

Further, the surrounding of body is evenly distributed with cross section be square trapezoid boss gradient is 25 ~ 60 °.

The upper surface of boss is force value bearing surface, under the effect of load, the square trapezoid boss output deflection deformation of surrounding, there is compressive strain, resilience is good simultaneously, and after unloading, deformation recovers fast, there is shearing deformation in the middle especially short place of round platform, and with deflection deformation, exist and support by force, output secondary rigidity.

The high-elastic vibration attenuation pad of the Low rigidity that the utility model provides is a kind of brand-new elastic model, and its rigidity is adjustable, can by changing boss size, and the difference in height of height platform, the gradient of boss changes and product ontology thickness realizes.Use the polyester elastomer materials of high rigidity to produce the high-elastic vibration attenuation pad of Low rigidity, improve the combination property of product, of the present utility model functional and have following features:

(1) backing plate detects stressing conditions, there is secondary flex point in force value-displacement curve, when 0 ~ 90kN close to straight line, there will be a flex point after 90kN, slope becomes large, illustrate in earlier stage have good elasticity and effectiveness in vibration suppression, increase in later stage load, short is played support bearing effect, namely larger elasticity is provided when low load, ensure the comfort taken, under local function, have secondary rigidity to support, ensure stable and safety when goods train runs;

(2) rigidity is low, and elasticity is large, good damping result;

(3) fatigue durability is good, long service life, reduces maintenance capacity;

(4) material is thermoplastic, and the recyclable recycling of inefficacy backing plate, reduces the pollution to environment.

Accompanying drawing explanation

Fig. 1 attached view of the present utility model

Fig. 2 upward view of the present utility model

Fig. 3 schematic diagram of the present utility model

Fig. 4 front view of the present utility model

Number in the figure: 1, trapezoid boss 2, high round platform 3, short round platform.

Detailed description of the invention

The raw material that the utility model adopts are high performance polyester elastomer (TPEE), directly can buy from manufacturer.Above-mentioned raw materials just adopts injection machine to be injection molded into predetermined shape in a mold by the utility model.This product does not have particular/special requirement to production equipment, known device.

Referring to Fig. 1, for the front view of the utility model product, visible body surface is made up of the square trapezoid boss 1 of cross section and round platform 2,3, the square trapezoid boss of cross section is evenly distributed on body surrounding, in the upper and lower surface dislocation arrangement of body, form wavy shaped configuration, round platform 2,3 is uniformly distributed body interior; Middle round platform is short compared with two ends, and short round platform 3 forms square, and round platform 2,3 is arranged in the upper and lower surface dislocation of body, the difference in height 2mm of height round platform 2,3; Square trapezoid boss gradient is 30 °.Establish with two mounting holes at product two ends, this hole uses for assembling railway spike.

Referring to Fig. 2, be interspersed in middle short round platform and Fig. 1, form an a large quadrilateral middle short round platform 3, short round platform 3 is only confined to centre position, and two ends must not the short round platform 3 of branch, otherwise vibration attenuation pad may be caused to lose efficacy; Surrounding forms wavy shaped configuration and provides high resiliency, and round platform 2,3 provides support shearing, and middle short round platform 3 provides secondary rigidity to increase the load of railway, ensures the safety and stability of track.

Claims (6)

1. a high-elastic vibration attenuation pad, comprise body and be distributed in the boss composition on body, the upper and lower faces of described body is evenly distributed with boss, it is characterized in that: the surrounding of described body is evenly distributed with trapezoid boss (1), in the arrangement of body upper and lower faces mutual dislocation, form continuous wavy shaped configuration; The centre position of described body, be evenly distributed with high round platform (2) and short round platform (3), described high round platform (2) height is consistent with described trapezoid boss (1), and short round platform (3) height is lower than high round platform (2), and height, short round platform (2,3) are arranged in body upper and lower surface mutual dislocation.

2. high-elastic vibration attenuation pad according to claim 1, is characterized in that: described trapezoid boss (1) is provided with 1-3 row.

3. high-elastic vibration attenuation pad according to claim 1, is characterized in that: described trapezoid boss (1) cross section is square.

4. high-elastic vibration attenuation pad according to claim 1, is characterized in that: described high-elastic vibration attenuation pad material is polyester elastomer (TPEE).

5. high-elastic vibration attenuation pad according to claim 1, is characterized in that: the difference in height 1.5 ~ 3mm of described height round platform (2,3).

6. high-elastic vibration attenuation pad according to claim 3, is characterized in that: it is 25 ~ 60 ° that the surrounding of body is evenly distributed with trapezoid boss gradient.