CN202559189U

CN202559189U - Urban railway system ballastless fastener

Info

Publication number: CN202559189U
Application number: CN2012201790259U
Authority: CN
Inventors: 李一兵; 罗运动; 吴恒志
Original assignee: ANHUI CHAOHU CASTING FACTORY Co Ltd
Current assignee: ANHUI CHAOHU CASTING FACTORY Co Ltd
Priority date: 2012-04-24
Filing date: 2012-04-24
Publication date: 2012-11-28
Anticipated expiration: 2022-04-24

Abstract

The utility model discloses an urban railway system ballasteless fastener which is characterized in that a nylon sleeve is previously embedded in a base, an iron chair resilient sleeper bearing under an iron chair is directly laid on the base, a rail lower resilient sleeper bearing is arranged on the iron chair, a steel rail is positioned on the rail lower resilient sleeper bearing, an insulating rail distance block is positioned between the steel rail and the iron chair, the steel rail and the insulating rail distance block are fastened on the iron chair through an elastic strip installed on the iron chair, and a screw spike where a heavy spring washer and a flat washer are sleeved penetrates through a fixing hole on the iron chair to be screwed into the nylon sleeve. The urban railway system ballasteless fastener is small in fastening force, low in cost and little in lying and maintenance work amount. On the conditions guaranteeing safe running of lines, the safe and cheap steel rail fastening scheme is provided for constant-resistance sections and small-resistance sections of urban railway systems, and line states are optimized.

Description

Urban track traffic does not have the quarrel fastener

Technical field

The utility model relates to does not a kind ofly have the quarrel location in urban track traffic, is used for fixing the nothing quarrel fastener of rail.More specifically saying so is used for normal resistance and the slight drag location that urban track traffic has different longitudinal resistance requirements, and rail is fixed in a kind of coupling arrangement on the railway roadbed.

Background technology

Normal resistance location in urban track traffic and the slight drag location that must reduce the circuit longitudinal resistance; The fastener system of domestic present laying exists the buckling piece buckle press bigger; System's longitudinal resistance is higher; System's damping property is bad, and amount of parts is many, is not easy to defectives such as manufacturing, construction and maintenance.

Summary of the invention

The utility model is to avoid above-mentioned existing in prior technology weak point; Provide a kind of longitudinal resistance regulate simple, damping property is good, good insulation preformance, urban track traffic that component are few do not have the quarrel fastener, in the hope of satisfying the operation requirement on path road, city, different longitudinal resistances location.

The utility model adopts following technical scheme for the technical solution problem:

The design feature that the utility model urban track traffic does not have the quarrel fastener is a pre-buried nylon sleeve in pedestal; The iron chair resilient sleeper-bearing of iron chair below directly is layed on the pedestal; Placing resilient sleeper-bearing under the rail on the said iron chair; Rail is placed under the rail on the resilient sleeper-bearing, between rail and iron chair, Insulation rail distance keeper is set, be installed in spring on the iron chair with rail and Insulation rail distance keeper fastening on iron chair; The fixing hole that the screw spike that is with heavy-duty spring packing ring and plain washer passes on the iron chair screws in nylon sleeve.

The design feature that the utility model urban track traffic does not have the quarrel fastener also is:

Resilient sleeper-bearing is to be material with thermoplastic elastomer (TPE) TPEE under said iron chair resilient sleeper-bearing and the rail, and the quiet rigidity of said iron chair resilient sleeper-bearing is 75～95kN/mm; The quiet rigidity of resilient sleeper-bearing is 30～50kN/mm under the said rail.

Resilient sleeper-bearing varies in size by its skin friction resistance under the rail, is divided into normal resistance location and uses the elastic composite backing plate with resilient sleeper-bearing and slight drag location.

Said spring adopts " e " type spring, is to be material with hot rolling spring steel 60Si2Mn, and diameter is 16mm, and buckle press is 6～7kN, and the bullet journey is 13mm.

Iron chair 3 is provided with the spring mount pad, and the platform that is in the spring mount pad outside is provided with the spring stopping boss that stops that spring is scurried out.

Compared with present technology, the utility model beneficial effect is embodied in:

1, the utility model is a non-shoulder non-bolt fastener, and component are few, simple in structure, be convenient to make, construction and safeguarding.

2, the two-layer resilient sleeper-bearing of the utility model all adopts thermoplastic elastomer (TPE) TPEE material; Its pressure and displacement curve are linear in the orbital payload scope; Loss of rigidity after having avoided the screw spike that nonlinear characteristic causes of General Purpose Rubber material fastening, effectiveness in vibration suppression is better, long service life.

3, the utility model adopts " e " type degree spring under the condition that guarantees the line security operation, and more suitably toe load of fastening and circuit longitudinal resistance are provided, and has optimized line status.

4, the utility model iron chair is provided with spring stopping boss, can effectively prevent withdrawing from of spring, the safety that has improved fastener.

Description of drawings

Fig. 1 looks sketch map for the utility model package assembly master;

Fig. 2 is the utility model package assembly schematic top plan view;

Fig. 3 is a spring structural representation in the utility model;

Fig. 4 is a spring stopping boss structure sketch map on the iron chair in the utility model;

Fig. 5 is the implementation result sketch map of spring stopping boss in the utility model;

Label among the figure: 1 pedestal; 2 iron chair resilient sleeper-bearings; 3 iron chairs; 4 springs; 5 rail; 6 Insulation rail distance keepers; Resilient sleeper-bearing under 7 rails; 8 screw spikes; 9 plain washers; 10 heavy-duty spring packing rings; 11 nylon sleeves; 12 spring mount pads; 13 spring stopping boss.

The specific embodiment

Referring to Fig. 1, Fig. 2; In the present embodiment urban track traffic do not have the quarrel fastener be pre-buried nylon sleeve 11 in pedestal 1; The iron chair resilient sleeper-bearing 2 of iron chair 3 belows directly is layed on the pedestal 1, is placing resilient sleeper-bearing 7 under the rail on the iron chair 3, and rail 5 is placed under the rail on the resilient sleeper-bearing 7; Between rail 5 and iron chair 3, Insulation rail distance keeper 6 is set, be installed in spring 4 on the iron chair 3 with rail 5 and Insulation rail distance keeper 6 fastenings on iron chair 3; Being with the fixing hole that the screw spike 8 of heavy-duty spring packing ring 10 and plain washer 9 passes on the iron chair 3 screws in nylon sleeve 11.

In the practical implementation, resilient sleeper-bearing 7 is to be material with thermoplastic elastomer (TPE) TPEE under iron chair resilient sleeper-bearing 2 and the rail, and the quiet rigidity of iron chair resilient sleeper-bearing 2 is 75～95kN/mm; The quiet rigidity of resilient sleeper-bearing 7 is 30～50kN/mm under the rail; Resilient sleeper-bearing 7 varies in size by its skin friction resistance under the rail, is divided into normal resistance location and uses the elastic composite backing plate with resilient sleeper-bearing and slight drag location, and the elastic composite backing plate is in resilient sleeper-bearing upper surface sulfuration one deck lubricious material, to reduce frictional resistance; When on bridge, laying rail system, consider that track expands with heat and contract with cold, if the track friction resistance is big, can influence the stability of bridge, at this moment must laying can reduce the elastic composite backing plate of system friction resistance, this location is called as the slight drag location.

Referring to Fig. 3, spring 4 adopts " e " type springs, is to be material with hot rolling spring steel 60Si2Mn, and diameter is 16mm, and buckle press is 6～7kN, and the bullet journey is 13mm.

Referring to Fig. 4 and Fig. 5, iron chair 3 is provided with spring mount pad 12, and the platform that is in spring mount pad 12 outsides is provided with spring stopping boss 13, and spring stopping boss 13 can effectively prevent scurrying out of spring 4.As shown in Figure 5; Spring 4 is installed in the spring mount pad 12 on the iron chair 3; Its toe-end is withheld Insulation rail distance keeper 6 and rail 5; The middle part fastening is on the platform in the outside of spring mount pad 12, because the spring stopping boss 13 that is provided with on the platform, can prevent that spring 4 from scurrying out from the hole of spring mount pad 12.

Claims

1. a urban track traffic does not have the quarrel fastener; It is characterized in that pre-buried nylon sleeve (11) in pedestal (1); The iron chair resilient sleeper-bearing (2) of iron chair (3) below directly is layed on the pedestal (1), goes up at said iron chair (3) and places resilient sleeper-bearing (7) under the rail, and rail (5) is placed on the resilient sleeper-bearing under the rail (7); Between rail (5) and iron chair (3), Insulation rail distance keeper (6) is set, be installed in spring (4) on the iron chair (3) with rail (5) and Insulation rail distance keeper (6) fastening on iron chair (3); The fixing hole that the screw spike (8) that is with heavy-duty spring packing ring (10) and plain washer (9) passes on the iron chair (3) screws in nylon sleeve (11).

2. urban track traffic according to claim 1 does not have the quarrel fastener; It is characterized in that: resilient sleeper-bearing (7) is to be material with thermoplastic elastomer (TPE) TPEE under said iron chair resilient sleeper-bearing (2) and the rail, and the quiet rigidity of said iron chair resilient sleeper-bearing (2) is 75～95kN/mm; The quiet rigidity of resilient sleeper-bearing under the said rail (4) is 30～50kN/mm.

3. new city track traffic according to claim 1 does not have the quarrel fastener, it is characterized in that: resilient sleeper-bearing under the rail (7) varies in size by its skin friction resistance, is divided into normal resistance location and uses the elastic composite backing plate with resilient sleeper-bearing and slight drag location.

4. urban track traffic according to claim 1 does not have the quarrel fastener, it is characterized in that: spring (4) adopts " e " type spring, is to be material with hot rolling spring steel 60Si2Mn, and diameter is 16mm, and buckle press is 6～7kN, and the bullet journey is 13mm.

5. urban track traffic according to claim 1 does not have the quarrel fastener, it is characterized in that: iron chair (3) is provided with spring mount pad (12), and the platform that is in spring mount pad (12) outside is provided with the spring stopping boss (13) that stops that spring (4) is scurried out.