CN201433337Y

CN201433337Y - Backing plate under rail

Info

Publication number: CN201433337Y
Application number: CN2009201232509U
Authority: CN
Inventors: 刘伍华
Original assignee: ZHEJINAG ZHONGYUAN RAILWAY FITTINGS CO Ltd
Current assignee: ZHEJINAG ZHONGYUAN RAILWAY FITTINGS CO Ltd
Priority date: 2009-06-22
Filing date: 2009-06-22
Publication date: 2010-03-31
Anticipated expiration: 2019-06-22

Abstract

The utility model provided a backing plate under a rail, belonging to the mechanical technology filed. The backing plate under the rail solves the problem that the service life is reduced by the excessively concentrated stress when the existing backing plate under the rail is stressed. The backing plate under the rail comprises a square platy main body, a bottom foot which is connected with the main body together is arranged at the bottom surface of the main body, the backing plate under the rail is characterized in that: a plurality of concave grooves which are evenly distributed and are in long strip shape are arranged on the top surface and the bottom surface of the main body, the cross section of the concave groove is in a circular arc shape. The stress which is generated when the backing plate is stressed by external force can be dispersed evenly by the concave groove which is in a long strip circular-arc structure in the backing plate under the rail, thereby improving the pressure resistance and increasing the service life, and as the main body is made of thermo plastic polyester elastomeric material, the service life is also increased.

Description

Railway rail pad

Technical field

The utility model belongs to field of mechanical technique, relates to a kind of railroad track accessory, particularly a kind of railway rail pad.

Background technology

At present, adopt resilient sleeper-bearing to absorb vibrational energy between rail in track structures such as railway, high-speed railway, urban track traffic and the tie usually, play the effect of certain noise reduction.Nowadays, the resilient sleeper-bearing of employing is mostly made for rubber tile, and temperature influence is big, the protection effect is undesirable, application life short, reclaim inconvenient shortcoming and rubber tile exists.So someone adopts thermoplastic elastic material to make backing plate, though this backing plate can overcome the above-mentioned defective of rubber tile, but exist certain shortcoming, because the groove of backing plate has wedge angle, it is uneven to make that backing plate stress when stressed disperses, and causes reduce application life.

Summary of the invention

The purpose of this utility model is to have the problems referred to above at existing technology, proposed a kind of when stressed stress evenly disperse the railway rail pad of long service life.

The purpose of this utility model can realize by following technical proposal: a kind of railway rail pad, comprise the tabular body that is square, on the bottom surface of body, be provided with the footing that is connected as a single entity with body, it is characterized in that, be equipped with some the grooves that evenly distribute and be strip on the end face of described body and the bottom surface, the cross section of groove is circular arc.Groove in this railway rail pad adopts the strip arc-shaped structure can disperse backing plate to make the stress that the time spent produces being subjected to external force uniformly, thereby has improved anti-pressure ability and application life.

In above-mentioned railway rail pad, the groove on the described body end face extends to the side edge of body.

In above-mentioned railway rail pad, the quantity of described body bottom surface upper groove is 4～6, and the quantity of end face upper groove is 3～5.

In above-mentioned railway rail pad, has spacing, the nock equal in length of this spacing and groove cross section between described two adjacent grooves.

In above-mentioned railway rail pad, described body adopts the thermoplastic polyester elastomer material to make.Thermoplastic polyester elastomer has the elasticity of rubber and the intensity of engineering plastics, and soft section elasticity of giving it makes it as rubber; Hard section is given its processing characteristics, makes it as plastics.With the rubber phase ratio, it has better processability energy and longer application life; Compare with engineering plastics, it has advantages of high strength equally, and pliability and dynamic mechanical are better.By changing the relative scale of two-phase, can adjust hardness, modulus, fusing point, chemical resistance and the tightness etc. of polymer, adopt this material to make backing plate and can prolong its application life.

Compared with prior art, this railway rail pad has adopted the thermoplastic polyester elastomer material to make with its groove and has adopted the design of circular arc list structure, makes this backing plate have stress and is uniformly dispersed, the advantage of long service life.

Description of drawings

Fig. 1 is the structural representation of the end face of this railway rail pad.

Fig. 2 is the structural representation of the bottom surface of this railway rail pad.

Fig. 3 is the sectional structure schematic diagram of this railway rail pad.

Among the figure, 1, body; 2, groove; 3, footing.

The specific embodiment

Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.

As Fig. 1, Fig. 2 and shown in Figure 3, this railway rail pad comprises body 1, groove 2, footing 3.Body 1 is rectangle tabular, and body 1 adopts the thermoplastic polyester elastomer material to make; Thermoplastic polyester elastomer has the elasticity of rubber and the intensity of engineering plastics, adopts this material to make backing plate and can prolong its application life.The quantity of footing 3 is four, they be positioned on the bottom surface of body 1 and be connected as a single entity with body 1, more particularly, footing 3 lays respectively at the edge of the bottom surface of body 1.

Groove 2 is strip and its cross section is circular arc, and groove 2 is positioned at the end face of body 1 and the middle part on ground.The quantity of body 1 bottom surface upper groove 2 is five, and the quantity of end face upper groove 2 is four, fluted 2 parallel mutually and parallel with the long limit of body 1, the equal in length of fluted 2 cross section nocks.Has spacing between two adjacent grooves 2 at grade, the equal in length of this spacing and groove 2 cross section nocks.Groove 2 on the end face shifts to install with groove 2 on the bottom surface, i.e. the spacing of two adjacent grooves 2 is corresponding one by one also overlapping on the orthography of the groove on the end face 2 and the bottom surface.

Parallel long limit and the perforation end face with body 1 of body 1 end face upper groove 2; Because sleeper rail support groove edge contacts with backing plate, in order to reduce wearing and tearing, the consumption between backing plate and the sleeper, the two ends of bottom recesses 2 are positioned on sleeper rail support groove edge and the backing plate contact edge, and its two ends are the circular arc transition, avoid stress to concentrate.

Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has used body 1 morely; Groove 2; Footing 3 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1, a kind of railway rail pad, comprise the tabular body (1) that is square, on the bottom surface of body (1), be provided with the footing (3) that is connected as a single entity with body (1), it is characterized in that, be equipped with some the grooves that evenly distribute and be strip (2) on the end face of described body (1) and the bottom surface, the cross section of groove (2) is circular arc.

2, railway rail pad according to claim 1 is characterized in that, the groove (2) on described body (1) end face extends to the side edge of body (1).

3, railway rail pad according to claim 1 is characterized in that, the quantity of described body (1) bottom surface upper groove (2) is 4～6, and the quantity of end face upper groove (2) is 3～5.

4, according to claim 1 or 2 or 3 described railway rail pads, it is characterized in that having spacing between described adjacent two grooves (2), the nock equal in length of this spacing and groove (2) cross section.

According to claim 1 or 2 or 3 described railway rail pads, it is characterized in that 5, described body (1) adopts the thermoplastic polyester elastomer material to make.