CN2554216Y

CN2554216Y - Damping fastening

Info

Publication number: CN2554216Y
Application number: CN 02237631
Authority: CN
Inventors: 吴建忠
Original assignee: BEIJING CITY BUILDING DESIGN R
Current assignee: BEIJING CITY BUILDING DESIGN R
Priority date: 2002-06-21
Filing date: 2002-06-21
Publication date: 2003-06-04
Anticipated expiration: 2012-06-21

Abstract

A novel vibration-absorbing fastener comprises an iron pad and a rubber pad, the utility model is characterized in that the iron pad is divided into an upper iron pad (1) and a lower iron pad (2), the rubber pad (3) is padded between the upper iron pad (1) and the lower iron pad (2), two ends of the upper iron pad (1) are made into grooves, two ends of the lower iron pad (2) are made into bosses, and the bosses are corresponding to the grooves of the upper iron pad (1). The utility model has no deformation of the rubber pad and good elasticity, which can also prolong the service life and ensure the driving safety.

Description

The novel damping fastener

One, technical field

The utility model belongs to rail fastening, particularly relates to the novel damping fastener.

Two, background technology

Existing separated rail fastening generally is encased inside elastic layer for track elasticity is provided under iron chair, adopt bolt that iron chair is fixed on the sleeper then, be the opposing wheel-rail lateral force, bolt need be screwed to a certain screw-down torque, rubber spacer is compressed distortion, makes its forfeiture part elasticity.The damping property of fastener can not be given full play to.Can not make firm being fixed on the sleeper of fastener if bolt is not tightened, bolt will bear the bigger flexural deformation that is produced by wheel-rail lateral force simultaneously, cause bolt failure, influence traffic safety.

Three, summary of the invention

The utility model technical issues that need to address are: a kind of novel damping fastener is provided, and rubber spacer is indeformable, and good springiness increases the service life, and guarantees traffic safety.

Technical solution of the present utility model is: the novel damping fastener, it comprises iron chair, rubber mat plate, described iron chair is divided into iron chair, following iron chair, be encased inside rubber mat plate between iron chair and the following iron chair on described, groove is made at the described iron chair two ends of going up, and boss is made at the described two ends of iron chair down, and this boss is corresponding with the groove of described upward iron chair.

The utility model compared with prior art has following advantage:

The utility model Damping fastening has guaranteed that the rubber mat plate under the iron chair gives full play to its elasticity, does not resemble traditional separated rail fastening causes rubber mat plate owing to tightening of bolt elastic loss; This fastener is easy for installation, and is also very simple if a certain parts damages are changed; This fastener has triple insulation, has better electrical insulating property than traditional fastener, is fit to very much the stray electrical current protection of urban track traffic.The wheel-rail lateral force of being transmitted by last iron chair 1 had both effectively been born in the boss design of following iron chair 2, did not increase the bending moment arm of bolt again, had guaranteed the safe handling of bolt.Rubber mat plate 3 structure designs under the last iron chair 1 have taken into full account the characteristic distributions of its top power, and iron chair 1 is evenly sunk under the effect of vertical power, have reduced the flexural deformation of iron chair, effectively prolong its application life.

Four, description of drawings

Fig. 1 is the utility model novel damping fastener assembling schematic diagram;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 looks sectional view for the master of iron chair 1 on the utility model;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 looks sectional view for the master of iron chair 2 under the utility model;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 looks cut-away view for the master of the utility model buffer insulation pad 4;

Fig. 8 is the vertical view of Fig. 7;

Fig. 9 looks cut-away view for the master of the utility model buckle 5;

Figure 10 is the vertical view of Fig. 9;

Figure 11 is the vertical view of the utility model rubber mat plate 3;

Figure 12 is the A-A sectional view of Figure 11.

Five, specific embodiments

Be encased inside rubber mat plate 3 between last iron chair 1 and the following iron chair 2, groove is made at last iron chair 1 two ends, adapts with the boss with following iron chair 2 two ends; Last iron chair 1 and following iron chair 2 are established buffer insulation pad 4 at concavo-convex matching part, with reinforced insulation; On buffer insulation pad 4, establish buckle 5.Rubber mat plate 3 is corresponding to the rubber round shaped grain diameter at position under the rail round shaped grain diameter greater than all the other positions, to improve the curved situation that is subjected to that goes up iron chair 1; The diameter of bolt hole of following iron chair 2 boss is greater than lower diameter, to reduce the bending moment arm of bolt.Upwarped by iron chair 1 in 5 restrictions of the buckle after the bolton, and do not produce precompression, guarantee that the elasticity of rubber mat plate is not lost by 1 pair of rubber mat plate of last iron chair 3.

This form of structure can combine with various rail securing members, and rubber mat plate 3 can have different form of structure.

Claims

1, novel damping fastener, it comprises iron chair, rubber mat plate, it is characterized in that: described iron chair is divided into iron chair (1), following iron chair (2), be encased inside rubber mat plate (3) between iron chair (1) and the following iron chair (2) on described, groove is made at described iron chair (1) two ends of going up, and boss is made at the described two ends of iron chair (2) down, and this boss is corresponding with the groove of described upward iron chair (1).

2, novel damping fastener according to claim 1 is characterized in that: described upward iron chair (1) and following iron chair (2) are provided with buffer insulation pad (4) at concavo-convex matching part.

3, novel damping fastener according to claim 2 is characterized in that: described buffer insulation pad (4) is provided with buckle (5).

4, novel damping fastener according to claim 1 is characterized in that: described rubber mat plate (3) is corresponding to the rubber round shaped grain diameter at position under the rail round shaped grain diameter greater than all the other positions.

5, novel damping fastener according to claim 1 is characterized in that: the diameter of bolt hole of described iron chair (2) boss down is greater than lower diameter.