CN2281998Y

CN2281998Y - Lock fastening for preventing lateral displacement of switch frog

Info

Publication number: CN2281998Y
Application number: CN 96209670
Authority: CN
Inventors: 吴悦魁; 杨森; 王兆男; 赵江
Original assignee: CHAOYANG TOWN JOB-APPARATUS FACTORY SHENYANG RAILWAY ADMINISTRATION
Current assignee: CHAOYANG TOWN JOB-APPARATUS FACTORY SHENYANG RAILWAY ADMINISTRATION
Priority date: 1996-05-10
Filing date: 1996-05-10
Publication date: 1998-05-20
Anticipated expiration: 2006-05-10

Abstract

The utility model relates to a locking fastener for preventing lateral displacement of switches and frogs, which relates to a lateral positioning and fixing device for railway switches and frogs for preventing railway switches and frogs from moving laterally. The utility model is composed of a metal plate baffle seat, a gauge baffle metal plate, a fastener, etc. The metal plate baffle seat adopts the pattern of four spike holes in which four pieces of spikes are arranged, or five spike holes, and convex patterns are arranged on the bottom surface of the metal plate baffle seat, which is contacted with a sleeper. The fastener adopts an elastic fastener, and the buckling height of the gauge baffle metal plate is increased. Lateral force resistant capacity is increased, the operating volume of protection and maintenance is reduced, the service life of switches and switch sleepers is extended, and the transport safety of railways is ensured.

Description

Prevent the lock fastener of track switch railway frog lateral displacement

The utility model relates to slightly track switch railway frog device for positioning and securing of a kind of iron, is specially adapted to prevent that the railway switch railway frog from laterally moving.

The device for positioning and securing of existing railway switch railway frog is to adopt three fastening hole iron seats of cut-spike or screw spike directly fixing also useful screw spike on eyelet position, the bottom of railway frog to reinforce fixed forms such as track switch, its major defect is that the little locking of buckle press is not firm, do not resist the rolling stock lateral force that wheel produces that is in operation, the fixing iron seat screw spike of railway frog is extracted, the railway frog that is in operation often moves, its horizontal amount of movement has surpassed Ministry of Railways's specified standard, increase maintenance load, influenced traffic safety.

The purpose of this utility model is that to overcome existing railway switch railway frog fixed form not firm, the shortcoming that causes the horizontal amount of movement of railway frog to exceed standard, a kind of powerful lock fastener that prevents that the railway frog lateral displacement from exceeding standard is provided, is used for the positioning and fixing of the track switch railway frog of common line and high speed traveling circuit.

The technical solution of the utility model is achieved in that a kind of lock fastener that prevents track switch railway frog lateral displacement is made up of shelves metal plate seat, gauge retaining metal plate, securing member etc., its special character is: retaining metal plate seat adopts the brute force retaining metal plate seat in four nail holes or five nail holes, in order to increase the frictional force of retaining metal plate seat and sleeper, keeping off the decorative pattern that is provided with protrusion on metal plate seat and the bottom surface that sleeper contacts; Securing member adopts by wood snail track nail, spring, nylon seat, fastening bolt, packing ring, nut, prevent the spring secures rail to sleeper that the nylon block that rotates etc. is formed; Withholding of metal plate of gauge retaining highly is increased to more than the 13mm, and gauge retaining metal plate is with fastening bolt, nut, plain cushion, spring, nylon seat the end that gauge keeps off metal plate to be fixed on the retaining metal plate seat, and the other end is withheld on railway frog; Retaining metal plate seat is fixed on the sleeper with wood snail track nail.

The utility model major advantage compared with prior art is: have retaining metal plate seat and the spring secures rail to sleeper that protrudes the decorative pattern bottom surface owing to adopt, the high-performance gauge retaining metal plate fastening bolt of particular design, nut, packing ring, spring and nylon seat are fixed on powerful retaining metal plate seat and the railway frog, it is spacing that formation elasticity is withheld the rigidity vibration damping, prevent that screw spike is loosening and extract, make the ability of its opposing lateral force improve 1.1--2.2 doubly, the horizontal amount of movement of railway frog has reached the requirement that remains on Ministry of Railways's standard, also reduced simultaneously the work of routine servicing maintenance activity, prolong the track switch switch tie life-span, guaranteed safety of railway traffic.Be specially adapted to by the track switch of train and the track switch of standard high-speed railway.Now describe the utility model most preferred embodiment in conjunction with the accompanying drawings in detail:

11-a 1-b22-a 2-b2-c 2-d2-e 2-f3 43-a 4-a3-b 4-b3-c 4-c3-d 4-d3-e 4-e3-f 4-f。

A kind of powerful lock fastener that prevents railway switch railway frog lateral displacement such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4.It is made up of blunt bolt 8, powerful retaining metal plate seat 7, high-performance gauge retaining metal plate 5, fastening bolt 1, nut 2, plain cushion 3, spring 4, nylon seat 6, anti-rotation nylon block 9 etc.With blunt bolt 8 brute force is kept off metal plate seat 7 and join together, brute force is kept off metal plate seat 7 withhold at the bottom of railway frog 12 first line of a couplet in aggregates with fastening bolt 1, nut 2, plain cushion 3, anti-rotation nylon block 9, nylon seat 6, high-performance gauge retaining metal plate 5, spring 4 with sleeper 10.The powerful lock fastener of a same structure also is installed at the opposite side of railway frog 12, be fixed on the same sleeper 10, railway frog 12 is clipped between two powerful lock fasteners, reach and form a firm integral body, prevent the purpose that railway frog laterally moves, in order to improve the opposing lateral force height H of withholding of gauge retaining metal plate 5 is increased to more than the 13mm from 8mm, thereby has reduced track switch maintenance workload, prolonged the life-span of track switch.

That the installation that prevents the powerful lock fastener of railway switch railway frog lateral displacement is seen is shown in Figure 1, its step is as follows:

Need to install the lock fastener place at track switch railway frog 12, sleeper 10 is done plane treatment, put powerful retaining metal plate seat 11, and place nylon seat 6 thereon, fastening bolt 1 and anti-rotation nylon block 9 drop in brute force retaining metal plate seat 7 oblong aperture, drop into gauge retaining metal plate 5, spring 4, nut 2, plain cushion 3 again from fastening bolt 1 top, adjust the position and bore sleeper hole screw-in blunt bolt 8, tightening nuts 1 makes torsion reach 120Nm, promptly finishes installation.

Prevent from the lock fastener snap-fastener car vehicle operating of track switch railway frog lateral displacement track switch to be produced the size of lateral force, design two kinds of four holes and five cellular types, brute force retaining metal plate seat 7, the four cellular types retaining metal plate seat of eyelet pattern is used for the track switch of high-speed railway as shown in Figure 3.In order to increase the sparrow pecked that horizontal resistance 1 is cast as the contact surface of sleeper 10 surplus the retaining metal plate seat 7 projection, strengthened coefficient of friction with the sleeper contact surface, simultaneously increase 1-2 root fastening bolt again, thereby strengthened fastening force, improved the ability of opposing lateral force.Have only 1.8 * 10 with existing track switch with common fastener and three-port type iron seat fixed form ³The opposing lateral force of KN is compared and has been improved 1.1-2.2 doubly, can resist 2.13-3.9 * 10 ³The lateral force of KN.Therefore the utility model can be fixed on the track switch railway frog on the position of regulation reliably, makes it reach Ministry of Railways's specified standard requirement.Having reduced routine servicing maintenance activity amount simultaneously, prolonged the track switch switch tie life-span, is very effective a kind of spring secures rail to sleeper to guaranteeing safety of railway traffic.

Claims

1, a kind of lock fastener that prevents track switch railway frog lateral displacement is by retaining metal plate seat, gauge retaining metal plate, compositions such as securing member, it is characterized in that keeping off the retaining metal plate seat that the metal plate seat adopts four nail holes or five nail holes, with bottom surface that sleeper contacts on be provided with the decorative pattern of projection, securing member adopts and is followed closely by the wood snail track, nylon seat, the fastening bolt, nut, plain cushion, spring, the spring secures rail to sleeper that anti-rotation nylon block etc. are formed, high-performance gauge retaining metal plate is to use the fastening bolt, nut, plain cushion, spring, nylon seat is fixed on the end that gauge keeps off metal plate on the retaining metal plate seat, the other end is withheld on the track switch railway frog, and retaining metal plate seat is fixed on the sleeper with wood snail track nail.

2, lock fastener according to claim 1 is characterized in that the bottom surface that retaining metal plate seat contacts with sleeper is cast as protruding sparrow pecked.

3, lock fastener according to claim 1 is characterized in that it is 13mm that gauge retaining metal plate is withheld height H.