CN202214663U

CN202214663U - Double-rigidity elastic rail pad

Info

Publication number: CN202214663U
Application number: CN2011203613540U
Authority: CN
Inventors: 孙照亮; 刘刚; 邓娇; 宿国英; 吴志峰; 邹元亨
Original assignee: Zhuzhou Times New Material Technology Co Ltd
Current assignee: Zhuzhou Times New Material Technology Co Ltd
Priority date: 2011-09-26
Filing date: 2011-09-26
Publication date: 2012-05-09
Anticipated expiration: 2021-09-26

Abstract

A double-rigidity elastic rail pad comprises a flexible base, and the lower surface of the elastic base is provided with two bearing surfaces including a primary bearing surface and a secondary bearing surface. The primary bearing surface and the secondary bearing surface are different in elastic rigidity and are two planes different in height, the primary bearing surface is higher than the secondary bearing surface so that the plane of the secondary bearing surface is recessed, a transitional groove is arranged in a common border area of the primary bearing surface and the secondary bearing surface and recessed from the secondary bearing surface to the elastic base, the elastic base is a soft wear-resistant elastic body, the bearing surfaces are main deforming areas and used for realizing the elastic-damping function, and the secondary bearing surface is used for bearing and capable of deforming when bearing high load. The primary rigidity of the double-rigidity elastic rail pad meets the requirements of damping of rails, and sinking capacity of rail surfaces are kept through the secondary rigidity, and safety in running of trains is improved while the requirement of comfortableness is met.

Description

Resilient sleeper-bearing under a kind of pair of rigidity rail

Technical field

The utility model relates to a kind of elastic damping components, is resilient sleeper-bearing under the rail used of a kind of track traffic specifically.Be mainly used between the flange of rail and iron chair or the flange of rail and sleeper of various tracks, do the vibration insulation and noise reduction parts of track.

Background technology

At present, the construction of carrying out track traffic that China is a large amount of, and pay attention to safety, comfortableness and the feature of environmental protection more, and the vibration and noise reducing of track becomes a big technical barrier, and all kinds of vibration insulation and noise reduction backing plates, bump leveller arise at the historic moment.Resilient sleeper-bearing in the past is in the development and Design process, and backing plate rigidity is linear, no flex point, and this has just confirmed the Performance Characteristics of resilient sleeper-bearing.

In practical application, because load is along with changing through the heavy difference of the axle of train, like this when the heavier train of axle or compartment pass through circuit; The deflection of resilient sleeper-bearing also sharply increases; Rail sinks serious, and vibration is violent, and very easily therefore traditional single rigidity resilient sleeper-bearing lost efficacy; Have significant limitation, therefore necessary this is solved.

The utility model content

The purpose of the utility model provides a kind of pair of rigidity in order to overcome the deficiency of existing resilient sleeper-bearing, and can satisfy resilient sleeper-bearing under the rail that functional performance requires.This kind resilient sleeper-bearing can satisfy the vibration and noise reducing requirement of (axle is heavy) under the different loads under the prerequisite that guarantees prior elastic backing plate premium properties

The purpose of the utility model realizes through following technical proposals; Resilient sleeper-bearing under a kind of pair of rigidity rail; Comprise elastic matrix, its characteristics are: at the soffit of elastomer matrix, be provided with two bearing surfaces; Be respectively bearing surface and secondary bearing surface face, bearing surface and secondary bearing surface be two not at two bearing surfaces of two mutual dislocation of same horizontal plane; Two bearing surfaces have different elasticity rigidity when contacting with following iron chair.

As the further improvement of the utility model, the juncture area of a described bearing surface and secondary bearing surface is provided with the transition groove; The transition groove is again to the groove of elastic matrix indent by the secondary bearing surface;

Described elastic matrix is the wear-resisting elastic body of software, and bearing surface is main deformed area, is used to realize the elastic damping function, and the secondary bearing surface is used for providing under the situation of big load and carries and distortion.

The resilient sleeper-bearing device is the parts that rigidity is provided in the fastener system under the rail that the utility model provided.Its upper surface directly contacts with rail; Soffit is placed on iron chair or the sleeper, through the stressed elasticity that track is provided of the wear-resisting elastomeric compression of software.

The beneficial effect of the utility model is: can break away from the ordinary elasticity backing plate and be only applicable to the heavy restriction of single vehicle axle; Can adapt to the rigidity requirement under the different loads, when vibration and noise reducing is provided, better the deflection of rail rail level is controlled in the 3.5mm scope of industry requirement.

Description of drawings:

Fig. 1 is the assembled state sketch map of the utility model;

Fig. 2 is the structural representation of looking up of the utility model embodiment one;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the local enlarged diagram of Fig. 3;

Fig. 5 is the structural representation of looking up of the utility model embodiment two;

Fig. 6 is the A-A sectional view of Fig. 5;

Fig. 7 is the local enlarged diagram of Fig. 6;

Fig. 8 is the structural representation of looking up of the utility model embodiment three;

Fig. 9 is the A-A sectional view of Fig. 8;

Figure 10 is the local enlarged diagram of Fig. 9.

The specific embodiment

To combine accompanying drawing and embodiment that the utility model is done further description below.

Accompanying drawing 1 is depicted as the assembled state sketch map of the utility model, from accompanying drawing, can find out, the utility model is a kind of resilient sleeper-bearing 5, resilient sleeper-bearing 5 be positioned at rail 2 below, be iron chair 6 below resilient sleeper-bearing 5; Spring 3 is installed on iron chair 6, and spring 3 is fixed on iron chair 6 and the rail 2 through T type bolt 1, and iron chair 6 and rail 2 are fastened as one; Below iron chair 6, also be lined with insulated buffer plate 4, iron chair 6 through anchor bolt 8 and insulation sleeve 9, is fixed on the sleeper 7 again.Because the bottom surface of the resilient sleeper-bearing of the utility model 5 has two bearing surfaces, form the stiffness changing structure shape that a kind of secondary carries, can satisfy the resilient sleeper-bearing vibration damping simultaneously and keep the requirement of rail level deflection.

Shown in Fig. 2-7, the utility model has three kinds of embodiments at least:

Embodiment one

Shown in accompanying drawing 2-4; Resilient sleeper-bearing under a kind of pair of rigidity rail; Comprise elastic matrix 11, its characteristics are: at the soffit of elastomer matrix 11, be provided with two bearing surfaces; Be respectively bearing

surface

12 and 13, bearing surfaces of secondary bearing surface face 12 and secondary bearing surface 13 and be two not at two bearing surfaces of two mutual dislocation of same horizontal plane; Two bearing surfaces have different elasticity rigidity when contacting with following iron chair.The support rail face is the plane; Bearing surface be with iron chair or sleeper on plane contact, low rigidity support is provided; The secondary bearing surface for when load enough greatly after, the deflection of bearing surface reach after the difference in height of design with iron chair or sleeper on plane contact, realization secondary rigidity, rigidity sharply increases, and keeps the rail level deflection.

A described bearing surface 12 and secondary bearing surface 13 are the plane of two differing heights with certain altitude difference, and wherein a bearing surface 12 is higher than secondary bearing surface 13, form the plane of secondary bearing surface 13 for concaving from bearing surface 12;

The juncture area of a described bearing surface 12 and secondary bearing surface 13 is provided with transition groove 14; Transition groove 14 is served as reasons the side of bearing surface 12 and secondary bearing surface 13 respectively again to the formed groove of elastic matrix indent; Described transition groove 14 is a U type groove;

The round platform that described secondary bearing surface 13 is combined to form for the facet of a plurality of annulars, each annular all are to be isolated in the surperficial ring-type of a bearing surface 12 by transition groove 14 to form; The distribution form of described secondary bearing surface is sparse near both sides, near the center dense distribution.

Described elastic matrix is the wear-resisting elastic body of software, directly contacts with rail, is the direct support section of rail;

Embodiment two

See shown in the accompanying drawing 5-7; Resilient sleeper-bearing under a kind of pair of rigidity rail; Embodiment two and embodiment one the basic structure formula is the same; Be that described secondary bearing surface 213 is outstanding for the indent that the facet of a plurality of bulks is combined to form, each convex all is to be isolated in the surperficial ring-type of a bearing surface 212 by transition groove 214 to form; The distribution form of described secondary bearing surface is sparse near both sides, near the center dense distribution.

Embodiment three

See shown in the accompanying drawing 8-10; Resilient sleeper-bearing under a kind of pair of rigidity rail; Embodiment two and embodiment one the basic structure formula is the same; Be a described bearing surface 312 and the plane of secondary bearing surface 313 for two differing heights with certain altitude difference, wherein a bearing surface 312 is lower than secondary bearing surface 313, forms secondary bearing surface 313 and be the planes of outwards giving prominence to from bearing surface 312;

The juncture area of a described bearing surface 312 and secondary bearing surface 313 is provided with transition groove 314; Transition groove 314 is served as reasons the side of bearing surface 312 and secondary bearing surface 313 respectively again to the formed groove of elastic matrix indent; Described transition groove 314 is a U type groove;

The convex that described secondary bearing surface 313 is combined to form for the projecting platform of a plurality of bar shapeds, each convex all are to be isolated in the surperficial ring-type of a bearing surface 312 by transition groove 314 to form; The distribution form of described secondary bearing surface is sparse near both sides, near the center dense distribution.

Claims

1. resilient sleeper-bearing under two rigidity rails; Comprise elastic matrix; It is characterized in that: at the soffit of elastomer matrix; Be provided with two bearing surfaces, be respectively bearing surface and secondary bearing surface, bearing surface and secondary bearing surface be two not at two bearing surfaces of two mutual dislocation of same horizontal plane; Two bearing surfaces have different elasticity rigidity when contacting with following iron chair.

2. resilient sleeper-bearing under the according to claim 1 pair of rigidity rail; It is characterized in that: a described bearing surface and secondary bearing surface are the plane with two differing heights of certain altitude difference; Wherein a bearing surface is higher than the secondary bearing surface, forms the plane of secondary bearing surface for concaving from bearing surface.

3. resilient sleeper-bearing under the according to claim 1 pair of rigidity rail; It is characterized in that: a described bearing surface and secondary bearing surface are the plane with two differing heights of certain altitude difference; Wherein a bearing surface is lower than the secondary bearing surface, and forming the secondary bearing surface is from the outwards outstanding plane of bearing surface.

According to claim 12 or the 3 described pairs of rigidity rails under resilient sleeper-bearing, it is characterized in that: the juncture area of a described bearing surface and secondary bearing surface is provided with the transition groove; The transition groove is served as reasons the side of bearing surface and secondary bearing surface respectively again to the formed groove of elastic matrix indent.

5. resilient sleeper-bearing under the according to claim 4 pair of rigidity rail is characterized in that: described transition groove is a U type groove.

6. resilient sleeper-bearing under the according to claim 4 pair of rigidity rail; It is characterized in that: the round platform that the facet that described secondary bearing surface is a plurality of annulars is combined to form, each annular all are to be isolated in the surperficial ring-type of a bearing surface by the transition groove to form.

7. resilient sleeper-bearing under the according to claim 4 pair of rigidity rail; It is characterized in that: the indent that the facet that described secondary bearing surface is a plurality of bulks is combined to form is outstanding, and each convex all is to be isolated in the surperficial ring-type of a bearing surface by the transition groove to form.

8. resilient sleeper-bearing under the according to claim 4 pair of rigidity rail is characterized in that: the convex that the projecting platform that described secondary bearing surface is a plurality of bar shapeds is combined to form, each convex all are to be isolated in the surperficial ring-type of a bearing surface by the transition groove to form.