CN2284804Y

CN2284804Y - Adjustable frog center spacer for railway switch

Info

Publication number: CN2284804Y
Application number: CN 97208433
Authority: CN
Inventors: 崔可龙
Original assignee: HEKOUNAN ENGINEERING SECTION LANZHOU RAILWAY SUB-BUREAU
Current assignee: HEKOUNAN ENGINEERING SECTION LANZHOU RAILWAY SUB-BUREAU
Priority date: 1997-01-16
Filing date: 1997-01-16
Publication date: 1998-06-24
Anticipated expiration: 2007-01-16

Abstract

The utility model provides an adjustable frog center spacer for railway switches, which is composed of two half blocks of spacers which are longitudinally and symmetrically separated, the two ends of the spacers are connected into a whole by a pin, and a regulating sheet can be additionally arranged between the central seams of the adjustable spacers. On the basis that the integral performance of the spacers is maintained, the utility model realizes adjustability, the processing technology is simultaneously simplified, and the accuracy is ensured. In addition, the operation is convenient, and the adaptability is strong in practical application. The utility model can effectively eliminate the defect of the staggered tooth of the new and the old frog centers. The utility model is suitable for being used as the frog centers of the railway switches with 43 9# kg rails, 43 kg 12# rails, 50 kg 9# rails and 50 kg 12# rails.

Description

The adjustable frog centre interval iron of railway switch

The utility model relates to a kind of railway switch railway frog and the rail track intersection is clipped between the two rails to keeping the equipment of its fixed intervals.

In railway switch, interval iron is to play an ingredient of interval action when connecting two one steel rails behind the frog centre.Existing monolithic frog centre interval iron, its acting surface is an arc surface, difficulty of processing is bigger, the error of casting technique own is difficult to guarantee with regard to big, precision in addition, often make critical size less than 2～4 millimeters of type design sizes after finishing is ground, promptly the spacing distance of latter linked two one steel rails of frog centre is little 2～4 millimeters than standard size; And the frog centre initial stage of potassium steel block cast is not withstand voltage, is pressed heap back tread face to broaden, thus generally the heel end width of the fusion cast frog heart than standard big 5～7 millimeters (standard error is ± 3 millimeters), and the actual positive error that is.Owing to above two kinds of reasons, so when rail is connected with frog centre, must produce on acting surface " grinding one's teeth ", " grinding one's teeth " disease can cause track switch frog centre hurt and train operation not steady.For many years, the railway worker does not have better way when getting rid of this disease, and the one, polishing frog centre heel end dwindles its heel end width; The 2nd, add iron wire or packing ring in interval iron and rail web of the rail acting surface place, with the spacing distance of latter linked two one steel rails of increasing frog centre, but often can not put in place, and also operating difficulties, to take a lot of work, require great effort, effect is undesirable.Facts have proved: existing monolithic interval iron structure is single, is difficult to adapt to situation of change.

The purpose of this utility model is to provide a kind of adjustable frog centre interval iron, to eliminate the railroad frog heart disease of " grinding one's teeth " effectively, guarantees that train operation is steady.

For achieving the above object, the technical scheme that the utility model is taked is: the two halves block gap iron that this adjustable interval iron is separated by vertical symmetry is formed, with pin its two ends are connected,, still keep its overall performance to prevent about the iron of two halves block gap, to move forward and backward; In actual applications, can between the interval iron centre joint, install the trimmer of different-thickness additional, play the spacing distance of adjusting latter linked two one steel rails of frog centre,, reach the purpose that elimination " is ground one's teeth " to realize adjustability according to " grinding one's teeth " numerical value.

Adjustable frog centre interval iron by such scheme manufactures and designs is improved to split type interval iron owing to will have the monolithic interval iron now, has broken through conventional practice, on the basis that keeps its overall performance, has realized adjustability; Also simplified simultaneously processing technology, the finishing of circular arc acting surface ground when error occurring in the former casting technique and be converted into the plane of two halves block gap iron contact plane or mill, its precision is guaranteed; In addition, simple to operate in actual applications, the saving of labor, save time, compliance is strong, can effectively eliminate " grinding one's teeth " disease of new and old frog centre, alleviates track switch frog centre hurt, prolongs its application life, guarantees operating steadily and safety of railroad train.This adjustable interval iron is applicable to 43 kilograms of rail 9 ^#, 12 ^#, 50 kilograms of rail 9 ^#, 12 ^#The railway switch frog centre.

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the vertical view of the utility model embodiment;

Fig. 2 is the right view of the utility model embodiment;

Fig. 3 is the left view of the utility model embodiment;

Fig. 4 is that the A-A of the utility model embodiment is to view;

The trimmer schematic diagram that Fig. 5 uses for the utility model two ends;

Fig. 6 is the trimmer schematic diagram that uses in the middle of the utility model.

Among Fig. 1 to Fig. 4, the interval iron that the utility model provides is that existing monolithic interval iron is improved, and has realized adjustability.The two halves block gap iron 1 that this adjustable interval iron is separated by vertical symmetry is formed, with pin 2 two halves block gap iron 1 is coupled together again, pin 2 is processed into taper, hammer into and form fixture in the interval iron 1, prevent two halves block gap iron about in the of 1, move forward and backward, simultaneously, strengthen the contact surface around the eyelet between iron 1 centre joint of two halves block gap, kept the globality of interval iron better.In actual applications, according to " grinding one's teeth " numerical value, can install the distance piece 3 of 1～3.5 millimeter different-thickness between the centre joint in two halves block gap iron 1 additional, play the spacing distance of adjusting latter linked two one steel rails of frog centre, to realize the adjustability of interval iron, reach " grind one's teeth " purpose of disease of elimination.This adjustable interval iron adopts the TB1164-010 standard production to make, and material adopts TH15-33.

Fig. 5 is to the trimmer 3 that Figure 6 shows that adjustable interval iron.Trimmer 3 among Fig. 5 is to use at adjustable interval iron two ends, it except that have one with the corresponding U-lag 4 of set bolt, also have a circular hole 5 logical, anticreep on the connection pin 2 that this circular hole 5 can make trimmer 3 articulate to be fixed on interval iron with U-lag 4 sides.In addition because trimmer 3 usefulness steel discs are made, and hardness and interval iron are suitable, and contact surface is more smooth, exists trimmer to move problem outward,, iron wire can be passed from the circular hole of fixing ear 6 again and be connected with other fixture so the both sides of trimmer 3 also are provided with maintenance ear 6.Figure 6 shows that the trimmer 3 that uses in the middle of the interval iron, structure and shown in Figure 5 basic identical, difference is illogical with U-lag 4 sides circular hole.

Claims

1, the adjustable frog centre interval iron of a kind of railway switch, it is characterized in that the two halves block gap iron (1) that it is separated by vertical symmetry forms, with pin (2) two halves block gap iron (1) is coupled together again, can install the trimmer (3) of different-thickness at the centre joint of two halves block gap iron (1) additional.

2, adjustable frog centre interval iron according to claim 1, it is characterized in that the trimmer (3) that uses between the centre joint of adjustable interval iron two ends have between two parties one with the corresponding U-lag of set bolt (4), also have a circular hole (5) logical with U-lag (4) side, the both sides of trimmer (3) also are provided with maintenance ear (6).

3, adjustable frog centre interval iron according to claim 1, it is characterized in that the trimmer (3) that uses between the centre joint of adjustable interval iron middle part only have between two parties one with the corresponding U-lag of set bolt (4), both sides are provided with maintenance ear (6).