CN102162208A

CN102162208A - High-strength turnout switch

Info

Publication number: CN102162208A
Application number: CN 201110024000
Authority: CN
Inventors: 王平; 陈嵘; 肖杰灵; 曹洋; 刘学毅; 魏贤奎
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-21
Filing date: 2011-01-21
Publication date: 2011-08-24

Abstract

The invention discloses a high-strength turnout switch, and belongs to the technical field of railway assembly manufacture. The turnout switch comprises a straight basic rail and a curved point rail. The turnout switch is characterized in that: the surface, attached to the curved point rail, of the straight basic rail is a sunken vertical abutted surface; the surface, attached to the straight basic rail, of the curved point rail is a vertical abutted surface; and the rail head of the curved point rail is a flat rail head capable of being concealed in the sunken abutted surface of the straight basic rail. The turnout switch has the advantages that: the point end of the original curved point rail is widened to improve the strength of the point end of the curved point rail; and correspondingly the abutted surface of the straight basic rail is changed into the vertical abutted surface capable of accommodating the widened point end of the curved point rail, so that the transition distance from the point end of the curved point rail to the width of the complete rail head is shortened at the same time of ensuring abutting, namely the length of the weak section of the curved point rail is reduced, the load bearing capacity and the abrasion resistance of the curved point rail are improved, and the service life of the curved point rail is greatly prolonged. The turnout switch is particularly suitable to be used in heavy-duty line turnouts.

Description

The high strength turnout switch

Technical field

The present invention relates to a kind of turnout switch that is used on the rail track, belong to railway components manufacturing technology field.

Background technology

At present, bent tongue adopts point-hiding to recline with the mode that reclines of straight stock rail usually in the railway switch railway switch, be that the bent point of switch is hidden in straight stock rail rail head straight stock rail is hidden the point place at bent tongue oblique cutting face from inside to outside of rail head bottom existence, this cutting face does not reach its rail head end face place, bent tongue rail head has the oblique cutting face of a correspondence and straight stock rail to coincide corresponding to this place, cutting face, bent tongue rail head becomes with its end face constantly to be raised and from being hidden under the straight stock rail rail head gradually to straight stock rail outside widening and the gradual change type shape raised, up to bearing wheel load transition (referring to people's railway publishing house " track switch design manual " 352-355 page or leaf) fully.Because bent tongue rail head must keep closely connected with straight stock rail, to keep the ride comfort of train-side when mistake is branched off, therefore the closely connected section bent tongue of locating extremely thin a little less than, make bent tongue rail head strength deficiency, be easy to generate stress under the load action and concentrate, locate to be easy to generate crackle, fall disease such as piece, the application life of having reduced railway switch for closely connected section, particularly particularly evident on heavy-haul line, have a strong impact on the normal operation of circuit.

Summary of the invention

For overcoming the shortcoming of existing turnout switch strength deficiency, the invention provides a kind of high strength turnout switch.

The formation of this high strength turnout switch comprises straight stock rail and bent tongue, it is characterized in that described straight stock rail and abutment face bent tongue are a recessed vertical binding face, bent tongue and abutment face straight stock rail are a vertical binding face, and the rail head of bent tongue is a plate rail head in the recessed binding face that can be hidden in straight stock rail.

The present invention changes the abutment face of bent tongue and straight stock rail into vertical plane, and the recessed vertical binding face of straight stock rail can make bent point of switch rail head width obtain increasing, form a plate rail head in the recessed vertical binding face that can be hidden in straight stock rail, thereby guaranteed that the identical of straight stock rail and bent tongue reclines, train-side is when crossing trouble, the wheel rim bent tongue that can normally recline, and vertical force can be affected to bent tongue transition by straight stock rail.Meanwhile, because the rail head of bent tongue has certain width, its intensity also is improved thus.

Compared with the aforementioned existing similar products, the present invention widens the tip of original bent tongue to improve the intensity of the bent point of switch; Correspondingly the binding face of straight stock rail is changed into the vertical binding face that can hold the bent point of switch of having widened, when guaranteeing applying, shortened the bent point of switch to complete rail head width transition distance, promptly reduced the length of the weak section of bent tongue, thereby improved the ability of bent tongue bearing load and the ability of its opposing abrasion, increased its application life greatly.Production technology is simple, and lays conveniently.Can be applicable to various circuits.Be particularly suitable for using in the heavy-haul line track switch.

The present invention is further described below in conjunction with drawings and Examples.

Description of drawings

Fig. 1 is the structural representation of straight stock rail of the present invention.

Fig. 2 is the structural representation of bent tongue of the present invention.

Fig. 3 is straight stock rail and the bent tongue structural representation when reclining.

Fig. 4 is straight stock rail and the bent tongue floor map when reclining.

Fig. 5 is the A-A view of Fig. 4.

Fig. 6 is the B-B view of Fig. 4.

Fig. 7 is the C-C view of Fig. 4.

The specific embodiment

Referring to Fig. 1～4, the formation of this high strength turnout switch comprises straight stock rail 1 and bent tongue 2, it is characterized in that abutment face 3 described straight stock rail 1 and bent tongue 2 is a recessed vertical binding face, bent tongue 2 and abutment face straight stock rail 1 are a vertical binding face 5, and the rail head 4 of bent tongue is a plate rail head in the recessed binding face 3 that can be hidden in straight stock rail.Each view profile when Fig. 5～7 have provided bent tongue and recline straight stock rail.

Claims

1. high strength turnout switch, main composition comprises bent stock rail, straight tongue, straight stock rail and bent tongue, it is characterized in that described straight stock rail and abutment face bent tongue are a recessed vertical binding face, bent tongue and abutment face straight stock rail are a vertical binding face, and the rail head of bent tongue is a plate rail head in the recessed binding face that can be hidden in straight stock rail.