CN2595857Y

CN2595857Y - Rail for laying seamless line

Info

Publication number: CN2595857Y
Application number: CN 03202550
Authority: CN
Inventors: 计德忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-24
Filing date: 2003-01-24
Publication date: 2003-12-31
Anticipated expiration: 2013-01-24

Abstract

The utility model discloses a rail used for laying a seamless line. The utility model comprises standard rails and joints at both ends of each rail, wherein, the joints form wedge shapes, and the joints are reversely arranged at both ends of the rail. After butted, the two rails are fixedly connected by clamping plates. Holes used for fixing the clamping plates on the joints are the long stripe holes, and the length of the holes is defined by designing the telescopic quantity of the rails. The utility model converts the prior penetrated rail seams into the seamless rails, so that a train is more stable when the train is driven. The utility model has the advantages that the defects caused by the common lines are prevented, the welding and the transporting problems caused by using the long rail lines are solved, and the utility model is the rails with the optimal structure for laying the seamless lines.

Description

A kind of rail that is used to lay gapless track

Technical field:

The utility model relates to a kind of train rail, particularly relates to a kind of rail that is used to lay gapless track.

Background technology:

At present, rail track is divided into seamless railroad and common line, and seamless railroad claims long track, continuous welded rail track, welded long rail circuit again; Common line claims common rail again, common rail is to shorten rail by the rail of many full-lengths or standard to be formed by connecting with clamping plate, the needs that expand with heat and contract with cold for adaptation, the rail joint place will reserve rail gap, and this is one of constructional weak link of common line, and it brings many drawbacks for railway operation and maintenance, at first, wheel is crossed over the rail gap joint can produce very big impact sound, and causes train vibration, and the passenger is not felt well; Secondly, the wheel impacts end of rail produces high impact force to several ten thousand newton, has quickened the wearing and tearing of rail and wheel; The 3rd, this impact force also causes the sunken and clamping plate of sub rail foundation to fracture, and rises soil and waits other diseases, when serious, even the entail dangers to traffic safety, these diseases need track maintenance section to spend considerable labour to renovate, and required labour reaches whole labours' 50% sometimes; In order to address this problem, adopt gapless track now, promptly the rail welding of many full-lengths is become a long rail string, can in a quite long segment distance, eliminate interface, avoid joint is arranged and the disease that produces, increase the stability of driving, but can not eliminate expanding with heat and contract with cold of rail fully, must 2--4 root buffer rail be set at the two ends of long rail and reserve rail gap, also have the used long rail of gapless track also to have the problem of welding and transportation, welding can be ensured the quality of products in the welding plant, but transportation difficulty, careless slightly, weld seam will sustain damage, field Welding, though there is not transportation problem, but welding quality is difficult for guaranteeing that because shipping damage, poor welding quality or maintenance be reason improperly, accidents such as local damage and fracture can take place in the gapless track long rail string in the operation process, in addition, existing gapless track also exists the problem of destressing and adjustment, and destressing and adjustment are two large-scale operations of gapless track, need personnel many, the length that expends time in, construction organization is tight, and technical requirements is higher.

Summary of the invention:

Technical problem to be solved in the utility model provides a kind of rail of new construction, make the gapless track of laying both not have weld seam, do not reserve the shrinkage joint that connects yet, neither influence freely stretching of rail, eliminated again and reserved the disease that rail gap brought, simultaneously do not need to carry out destressing and adjustment yet, the technical scheme that the utility model adopted is to set up wedge type joint on the both sides of standard rail, the capable joint of the wedge at two ends oppositely is provided with, after the butt joint of two one steel rails, on orbital plane, direction along ng a path forms a seam longitudinally, two rail joints are affixed with clamping plate, and the hole that is located at the installation clamping plate on the web of the rail is a bar hole, and the length in hole is pressed the design of rail stroke amount, with the flexible freedom after the assurance track bond, after the butt joint of two joints, respectively be provided with flexible opening, be furnished with sprue accordingly in inside and outside both sides, after installing sprue, only on the rail level of joint, there is seam with the outside in the inner part, and certain distance that staggers, make the seam that does not have perforation on the whole rail level.

The joint geometry of above-mentioned rail can be a cylindricality, and after the butt joint, the longitudinal seam that direction along ng a path forms is a straight line; Joint geometry can also be trapezoidal, and its contact surface is stepped, and after the butt joint, the longitudinal seam that direction along ng a path forms is " Z " word line or " S " line;

Above-mentioned rail joint can be made one with rail, also can make single joint, existing line is transformed, itself and existing track are welded together, for guaranteeing the mechanical performance of joint, the web of the rail can be thickeied to 40mm, and flange in the outer part can be widened to 42.5mm outside the alignment of center, simultaneously, the part of track bond, the rail level outside the alignment of center has outside one the gradient low in the height, it and the formed angle of horizontal plane are 0 °～1 ° 25 ' 56 "; sprue can be joined several packet sizes, changes use according to the size of flexible opening, and the shape of sprue and size are also determined according to the shape and the size of flexible opening.

The utility model has avoided common line to reserve the various diseases that rail gap brought, and also makes gapless track adopt some problems that long rail ran into to be properly settled, and makes rail track really reach the purpose of gapless track.

Description of drawings:

Fig. 1 is a front view of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Fig. 3 is the front view after the utility model butt joint.

Fig. 4 is that A among Fig. 3 is to view.

Specific embodiments:

The utility model has been set up wedge type joint 1 at the two ends of standard steel track, the joint at two ends oppositely is provided with, the contact surface 2 of two joints can be plane or step-like, joint geometry can be a cylindricality, after the butt joint, the longitudinal seam 3 that direction along ng a path forms is straight lines, joint geometry can also be trapezoidal, its contact surface is stepped, after the butt joint, the longitudinal seam that direction along ng a path forms is " Z " word line or " S " line, the hole 4 that clamping plate are installed is a long strip type, the length in hole is relevant with the stroke of rail, the formed flexible opening 5 in two rails butt joint back, can change size along with the flexible of rail, for this reason, dispose several big or small sprues 6 and remedy opening, make blank area only form little seam 7 in inside and outside both sides, and do not have the rail gap that connects, and be the mechanical performance that guarantees the joint, the web of the rail 8 can be thickeied, rail for 75kg/m, can thicken to 40mm,, can thicken to 33mm for the rail of 60kg/m, rail for 50kg/m, can thicken, and flange 9 in the outer part can be widened to 42.5mm outside the alignment of center, simultaneously to 31mm, the part of track bond, rail level outside the alignment of center has outside one the gradient low in the height, and it and the formed angle of horizontal plane are α=0 °～1 ° 25 ' 56 ", like this; when guaranteeing that rail freely stretches; do not have rail gap on the circuit again, the mechanical performance of joint also meets the requirements, and train driving gets up more steady; safety.

Claims

1, a kind of rail that is used to lay gapless track, it comprises the standard rail, it is characterized in that having additional wedge type joint on the both sides of standard rail, the wedge type joint at two ends oppositely is provided with, after the butt joint of two one steel rails, on orbital plane, direction along ng a path forms a seam longitudinally, two rail joints are affixed with clamping plate, the hole that is located at the installation clamping plate on the web of the rail is a bar hole, the length in hole is pressed the design of rail stroke amount, with the flexible freedom after the assurance track bond, after the butt joint of two joints, respectively be provided with flexible opening in inside and outside both sides, is furnished with sprue accordingly, after installing sprue, only on the rail level of joint, there is seam with the outside in the inner part, and certain distance that staggers makes the seam that does not have perforation on the whole rail level, and the web of the rail can be thickeied according to the rail of various criterion, rail for 75kg/m, can thicken to 40mm,, can thicken to 33mm for the rail of 60kg/m, rail for 50kg/m, can thicken to 31mm, and flange 9 in the outer part can be widened to 42.5mm outside the alignment of center, flange in the outer part is widened to 42.5mm outside the alignment of center, simultaneously, the part of track bond, the rail level outside the alignment of center have outside one the gradient low in the height, and it and the formed angle of horizontal plane are 0 °～1 ° 25 ' 56 "; sprue can be joined several packet sizes, changes according to the size of flexible opening.

2, a kind of rail that is used to lay gapless track according to claim 1 is characterized in that the joint geometry of above-mentioned rail can be a cylindricality, and after the butt joint, the longitudinal seam that direction along ng a path forms is a straight line.

3, a kind of rail that is used to lay gapless track according to claim 1 is characterized in that joint geometry can be trapezoidal, and its contact surface is stepped, and after the butt joint, the longitudinal seam that direction along ng a path forms is " Z " word line or " S " line.

4,, it is characterized in that standard rail and joint can make one according to claim 1,2 or 3 described a kind of rail that are used to lay gapless track.

5, a kind of rail that is used to lay gapless track according to claim 1 is characterized in that making single joint existing line is transformed, and joint and existing standard track are welded together.