CN2510523Y

CN2510523Y - 'Seamless' shock-free steel rail

Info

Publication number: CN2510523Y
Application number: CN 01272891
Authority: CN
Inventors: 陈学生
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-18
Filing date: 2001-12-18
Publication date: 2002-09-11
Anticipated expiration: 2011-12-18

Abstract

The utility model relates to a railway steel rail joint improvement technology field. The utility model is a non-vibration rail without gap, and the two end of the rail is made into the rail in the semi-rail shape with symmetrical two ends vertically along the rail. The rail connection changes from the jointing to the lap to make the single gap of the connection become the double semi-gap. The utility model takes advantages that gap reducing vibration can reduce the tired damage of the railway wheel components, and reduce or even eliminate the noise and vibration of the gap, which improves the comfort of the taking the railway, and betters the environmental pollution.

Description

" seamless " do not have the shake rail

Technical field

The utility model belongs to the class of track that builds a railway, and relates to rail joint architecture advances technical field.

Technical background

At present, the rail of laying on the railway, because of considering the influence of " expanding with heat and contract with cold ", have in the joint of rail and rail, the gap of keeping somewhere respective width according to the different length of single rail, people are called " shrinkage joint " usually and see Fig. 1 (as single 12.5 meters rail, general 8 millimeters of play movement).Yet this just gap allows the train that moves on it produce frequent fierce and undying vibrations.It has not singly quickened " endurance failure " of train parts, returns the passenger and causes noise and vibrations uncomfortable, more near railway resident along the line is imposed in very big noise puzzlement, influences people's life.Along with the raising of train speed per hour, this problem is more outstanding.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of " seamless " not have the shake rail for overcoming the above-mentioned defective that exists.Make respectively along half rail shape of two ends, the left and right sides symmetry that the rail axis normal is cut open at these rail two ends; The cross section of rail two ends half tread end make from inside to outside with rail axle vertical plane angle α less than 90 the degree, be preferably 85 the degree cross sections; Rail two ends half web of the rail portion thickening, its thickness greater than or minimum equal whole web of the rail portion thickness.When implementing butt joint,, become two half gap expanded joint structures of overlap joint dislocation by prior art butt joint shrinkage joint, a straight-through gap because there is half rail structure at these rail two ends by two one steel rails described in the utility model.Promptly when half rail of two one steel rails docked, half tread portion still required to keep somewhere the shrinkage joint in accordance with regulations.But the prior art straight-through shrinkage joint of the sort of cross-section rail has not as shown in Figure 1 had, i.e. so-called " seamless ".Originally " straight-through seam " is cut into two " dummy joints " by the vertically vertical matching surface of half rail, can satisfy the rail stroke requirement equally.When the steel wheel of train was rolled to rail joint of the present utility model place, its pressure was born jointly by two and half rails, and when each dummy joint contact place, owing to still have the support of second half rail, steel wheel the seam vibrations no longer took place and smooth rolling, and having reached does not have the shake effect.Also reach the noiselessness effect simultaneously.

The utility model advantage: no shake, noiselessness, slow down even eliminated, do not cause discomfort, also the railway surrounding resident is not polluted to the passenger to train parts (wheel) endurance failure.Good environment has been created in speed-raising to train.

Description of drawings

Fig. 1 is prior art railway track two rail mated condition schematic top plan view.

Fig. 2 is that the utility model " seamless " does not have shake rail structure schematic top plan view.

Fig. 3 is that the utility model " seamless " does not have shake rail structure schematic side view.

Fig. 4 is that the utility model " seamless " does not have shake rail end face half rail structure section schematic diagram.

Fig. 5 is the schematic top plan view that the utility model " seamless " does not have two rail mated condition of shake rail.1-one one steel rail among Fig. 5,1 '-another one steel rail

Fig. 6 is the schematic side view that the utility model " seamless " does not have two rail mated condition of shake rail.

Fig. 7 is the sectional schematic diagram that the utility model " seamless " does not have two rail mated condition of shake rail.

In Fig. 1, because the railway track both ends of the surface are vertical with axis, must leave the straight-through seam of certain size during the two rails docking The crack, the expansion stroke when expanding with heat and contract with cold to overcome railway track.

Fig. 2, Fig. 3, Fig. 4 are for the utility model single steel rail is overlooked, side-looking, section structure schematic diagram. At Fig. 2, figure 3, among Fig. 4, make respectively along the rail axis in the certain-length (this figure is 10 centimetres) with the railway track two ends and vertically cut open Half rail of two ends, the left and right sides symmetry of opening, two ends half rail left-right symmetry. See Fig. 2, namely cut into half open along the railway track axis centre The rail shape. See Fig. 2, make in the cross section of the half tread end at railway track two ends from inside to outside with rail axle vertical plane angle Less than the cross section of 90 degree, this figure is 85 degree, and the dummy joint that railway track is kept somewhere when docking slightly is wedge-like opening, and is interior narrow Outer wide purpose is to prevent that rigid objects is stuck in difficult drop-off in the dummy joint and affects the railway track free-extension. See Fig. 4, at iron The corresponding thickening of rail two ends, road half web of the rail section, make after its thickening waist thickness greater than or to equal at least the waist of former whole rail thick Degree is to strengthen half web of the rail section anti-pressure ability. The thickening of half web of the rail section ties up to be carried out in the railway track production operation of rolling disappearing simultaneously Except internal stress. The length of half web of the rail section thickening should be greater than half rail length. If half rail length is 10 centimetres, half web of the rail section then Thickening length can be 12 centimetres.

Be the utility model two one steel rails docking assembling schematic diagram at Fig. 5, Fig. 6, Fig. 7, Fig. 5 is the utility model assembling Top view contrasts from Fig. 5 and Fig. 1 prior art and to find out: the two rails of prior art (Fig. 1) to be connected to one big between The crack leads directly to the expansion joint; And behind the two rails of the utility model (Fig. 5) overlap joint two dummy joints are arranged, wherein there is one section two halves rail heavy Folded.

The specific embodiment

Fig. 5, Fig. 6, Fig. 7 are that the utility model " seamless " does not have shake rail assembling butt joint embodiment.Fig. 5 is a vertical view, and Fig. 6 is a lateral view, and Fig. 7 is a profile, saves splice bar and bolt and nut that two rails connects usefulness among the figure, connects on the two rails that also do not draw and uses screw, only marks the relative position that two rails connects.Two rails adopts fish-bolt to connect same prior art, and this does not give unnecessary details.Rail 1 and rail 1 ' be connected are to form by the half rail overlap joint at two ends separately as can be seen from Figure 5, in overlapping one section, two and half rails form a whole rail job by two and half rails, two ends at two and half rails overlap joint, still have two and half shrinkage joint, the minimum slit at this half shrinkage joint should meet the gap size that calculates in the prior art.This slit is a wedge structure, sees Fig. 5, and is interior narrow outer wide, and this is because square with the axis of the utility model rail two ends half tread end end face becomes due to the 85 degree angles.This wedge structure prevents that foreign matter from snapping in half slots and losing flexible ability.

Claims

1, a kind of " seamless " do not have the shake rail, it is characterized in that the rail two ends make respectively along half rail shape of two ends, the left and right sides symmetry that the rail axis normal is cut open.

2, do not have the shake rail according to claim 1 described " seamless ", the cross section that it is characterized in that the half tread end at rail two ends make from inside to outside with the cross sections of rail axle vertical plane angle α less than 90 degree.

3, do not have the shake rail according to claim 1 or 2 described " seamless ", the cross section that it is characterized in that the half tread end at rail two ends make from inside to outside with rail axle vertical plane angle α be the cross sections of 85 degree.

4, do not have the shake rail according to claim 1 described " seamless ", it is characterized in that half web of the rail portion thickening at rail two ends, its thickness equals whole web of the rail portion thickness.