CN2339610Y - Butt-jointing device for railroad joint - Google Patents

Abstract

The utility model provides a butt-jointing device for a railroad joint, characterized in that the railroad joint is the wedge-shaped, the width of the cross section of the joint is equal to the top face width of the cross section of the joint, and the joint is provided with a plurality of oblateness-shaped bolt holes; a ground butt-jointing with the slant face of the joint is clamped with an auxiliary synovial membrane, and the distance between a wedge-shaped top part and a wedge-shaped end part of the slant face on the railroad direction is equal to the rated clearance butt-jointing with two H-shaped cross sections. The butt-jointing device for the railroad joint can cause that the tangency railroad line of the traveling wheel instantly intersects with a butt-jointing line of the railroad on the tangential point, for avoiding the butt-jointing abuse of the original railroad remaining the clearance, for lowering noise and abrasion, and for lightening the vehicle vibration, and the vehicle shake; the vehicle speed can not be affected.

Description

The rail joint docking facilities

The utility model relates to a kind of wheel rail, especially a kind of rail joint docking facilities.

Existing stock rail as track for a train, leaves nominal clearance (rail gap) during the butt joint of two " worker " shape cross section.Wheel in advancing is cut path (being wheel and the contact wire of track) moment and the orbital docking seam produces " the comprehensive coincidence ", make wheel " bump completely " butt joint, so that send shake ear noise, car body shakes, rocks, increase wearing and tearing, also restricted the road speed of vehicle simultaneously.

The purpose of this utility model is to overcome above-mentioned shortcoming, the rail joint docking facilities is provided, carry out wheel and cut the moment of path and orbital docking line " intersect at the point of contact ", clash into faint, avoided the violent vibrations of car body, rocked, noise reduces, and does not also influence road speed, can increase substantially the railway quality.

The purpose of this utility model is achieved in that rail joint is processed into wedge shape, the body of joint cross section is wide to be equal to end face is wide, establish a plurality of oblate bolts hole on the joint, the connecing to accompany in the face of two joint inclined-planes butt joints helped synovial membrane, and the nominal clearance that distance and two " worker " the shape cross section on orbital direction docks between a wedge-shaped top and another tapered end on the inclined-plane is equal to.

Below in conjunction with accompanying drawing and by specific embodiment the utility model is elaborated.

Description of drawings:

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

Fig. 2 is that A among Fig. 1 is to local enlarged diagram.

Fig. 3 is the wedge joint schematic perspective view.

Fig. 4 is the B-B sectional view among Fig. 3.

By Fig. 1, Fig. 2, Fig. 3, Fig. 4 as can be seen, a kind of main rail joint docking facilities with clamping plate 1, bolt 2 docking orbits 3, the joint 6 of its track is wedge shape, the body of joint 6 cross sections is wide to be equal to end face is wide, to guarantee its compressive strength, a plurality of oblate bolts hole 4 are arranged on the joint 6, and the major diameter of oblate bolt hole 4 is fit to the spatial alternation that track expands with heat and contract with cold.The no gap of butt joint, two joints, 6 inclined-planes connects to accompany in the face and helps synovial membrane 5, and helping synovial membrane 5 is plastic sheetings that a kind of physicochemical property is stable, toughness is strong.The nominal clearance that distance 9 and two " worker " the shape cross section on orbital direction docks between a wedge-shaped top 7 and another tapered end 8 on the inclined-plane is equal to.The length of clamping plate 1 is bigger than joint wedge length, so that two ends of two wedge joints butt joint add the purpose that bolt reaches the reinforcing joint butt joint.Establish circular bolt holes on the clamping plate 1, fastening with high-tension bolt 2.The butt joint position divides into double sleeper 10, to strengthen the fixedly dynamics at this position.

By above-mentioned feature as can be known, because docking structure is fastening rationally, extruding force, the tensile force that produces between two tracks that expand with heat and contract with cold of track is converted to shear stress, on gapless wedge shape interface by two wedge shape butt joints in opposite directions, opposing slip is released.Reasonably wedge angle (being acute angle) can obtain the optimum state that shear stress discharges, and this is also relevant with the rail top face width.As: suppose that the rail top face width is 80mm, wedge angle be 5 ° and 7 ° 30 ', it is 914mm and 608mm that wedge length is calculated approximation, belongs to stress and is decomposed into the optimum state scope that shear stress discharges.Through road performance test on the spot, wheel cut path with moment the point of contact intersect butted line, the impact that the point of contact is accepted is atomic weak, has overcome the drawback of " worker " shape cross section butt joint, effect is obvious.The utility model compared with prior art has tangible advantage.

Claims (1)

1. main rail joint docking facilities with clamping plate (1), bolt (2) docking orbit (3), the joint (6) that it is characterized in that track (3) is wedge shape, the body of joint (6) cross section is wide to be equal to end face is wide, a plurality of flat figure bolts hole (4) are set on joint (6), the connecing to accompany in the face of two joints (6) inclined-plane butt joint helped synovial membrane (5), on the inclined-plane between a wedge-shaped top (7) and another tapered end (8) distance (9) on orbital direction be equal to the nominal clearance that two " worker " shape cross section docks.

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