CN2284803Y - Optimization baffle base for railway fastening - Google Patents

Abstract

The utility model relates to an optimization combination apron block for a railway fastener, the cross section of which is formed by circumfusion of two long straight edges with the length of 25.4MM, two short straight edges which are parallel to the long straight edges, and an inner circular arc with the radius R of 15MM. The two long straight edges intersects and forms an included angle alpha of 120 DEG, and the structure dimensions of the two short straight edges are formed by the respective intersection of one of the short straight edges and the long straight edge as well as the intersection of the other short straight edge and the circular arc. A minimum distance from the circular arc to the two long straight edges is that a is 4.3 mm, and c is 6.6 mm. Another minimum distance from the circular arc to the two long straight edges is that b is 7.8 mm, and d is 10.1 mm. The length of the apron block is a cylinder superposed by same cross sections and is 2 mm longer than the length of a gauge apron. An end retaining wall is arranged on the both ends of the apron block in an injection moulding way.

Description

Railway fastener optimum organization apron block

The utility model relates to a kind of railway fastener with optimizing the apron block of organizing a performance, and belongs to the lock on track technical field.

At present, the employed apron block of TB/T1495.1-92 spring I type fastener is 0,2,4,6 four number, wherein No. 0 with organize a performance together for No. 6, combine with No. 4 for No. 2.The matching method of the inside and outside side dam holders number of rail is No. 0 and No. 6, No. 2 and No. 4 during use, and therefore, the interior outside of rail is used simultaneously 0-6 number or used the 2-4 apron block simultaneously, that is to say the apron block that has only two pairs of models on the circuit simultaneously.There are two shortcomings like this: 1) in the gauge adjustment process, the outside need be changed the apron block of another kind of model simultaneously in the rail, therefore, on circuit, using a kind of apron block of model, also need the apron block of a standby cover different model, increased the inconvenience of Master Cost expenditure and the work of adjustment gauge; 2) need widen 15mm at the curve location of sweep R＜300m gauge, use the 0-6 apron block, the straight line location gauge is not widened, use the 2-4 apron block, this just needs to calculate the length of different line conditions, and then the quantity of calculating different model apron block, make the plan of apron block, management and construction operation are all very inconvenient, especially in the easement curve that transition is connected between the curve of sweep R＜300m and straight line, part length range uses 0-6 number, part length range uses 2-4 number, owing to length of transition curve has nothing in common with each other, so it is just more inconvenient to calculate every kind of model apron block quantity.

The purpose of this utility model provides and a kind ofly can support gauge apron and adjust gauge, can make four numbers of apron block be used for optimum organization apron block on straight line and the sweep R＜300m curve simultaneously again.

The purpose of this utility model is achieved in that to adopt nylon material or polyethylene from high pressure process, low-pressure polyethylene, ethene improved (neutral body) injection molded, especially nylon material performance the best.The apron block section is surrounded by two long straight flanges, two short straight flanges and an interior circular arc, and two short straight flanges are parallel with corresponding long straight flange, and arc radius is R.The length of apron block is the cylinder of identical section, and its length is that the width of gauge apron adds 2mm, and respectively there is a blocking wall of termination point at two ends.Apron block divides 0,2,4,6 four number, be combined in respectively on two apron blocks, wherein No. 0 with the apron block that is combined into a model for No. 4, No. 2 with the apron block that is combined into another model for No. 6.Number value deducts the 9.8mm gained by the distance of center of arc and long straight flange curtate distance two long straight flange intersection points, and circular arc is apart from minimum range a, b, c, the d decision number size of long straight flange.

Adopt the advantage of such scheme to be, can realize that four numbers of apron block are present on the circuit simultaneously, overcome the shortcoming that gauge adjustment replacing apron block and rectilinear curve are used the different model apron block, easy to use, reduce expenses.

Below in conjunction with accompanying drawing and subordinate list embodiment the utility model is further specified.

Fig. 1 is the constructional drawing of the utility model 0-4 type apron block;

Fig. 2 is the A-A sectional drawing of Fig. 1;

Fig. 3 is the constructional drawing of the utility model 2-6 type apron block;

Fig. 4 is the B-B sectional drawing of Fig. 3.

The relation of fastener apron block number configuration of table 1 explanation spring I type and apron block model.

The relation of apron block number configuration of table 2 explanation the utility model and apron block model.

1-long straight flange among the figure, 2-short straight flange, 3-circular arc, 4-blocking wall of termination point.

Embodiment 1: what Fig. 1 and Fig. 2 showed is 0-4 type apron block, and its section is by two long straight flange 1, two short straight flanges 2, and interior circular arc 3 surrounds.The length of two long straight flanges 1 is respectively 25.4mm, its crossing angle α is 120 °, arc radius R is 15mm, circular arc 3 is 4.3mm apart from the minimum range a of two long straight flanges 1, c is 6.6mm, two short straight flanges 2 are parallel with relative separately long straight flange 1, its construction size is cut mutually with long straight flange 1 and circular arc 3 respectively by it and hands over decision, the length of apron block is the cylinder of identical section stack, length is that the width of gauge apron adds 2mm, the two ends of apron block respectively are injected with a blocking wall of termination point 4, in order to anti-baffle plate back direction along ng a path play are installed.

Embodiment 2: what Fig. 3 and Fig. 4 showed is 2-6 type apron block, its section configuration is identical with example 1 described 0-4 type, the length of two long straight flanges 1 is 25.4mm, the angle α of two long straight flanges 1 is 120 °, arc radius R is 15mm, circular arc 3 is 7.8mm apart from the minimum range b of two long straight flanges 1, a is 10.1mm, two short straight flanges 2 are parallel with relative separately long straight flange, its construction size is cut to hand over long straight flange 1 and circular arc 3 respectively by it mutually to be decided, and the length of apron block is the cylinder of identical section stack, and its length is that the width of gauge apron adds 2mm, the two ends of apron block respectively is injected with a blocking wall of termination point 4, the back is installed along track side's play in order to anti-baffle plate.

Table 1 and table 2 have been listed four kinds of situations of inside and outside side dam holders number configuration mode of rail and apron block model relation respectively.That table 1 is listed is existing 0-6 on the spring I type fastener, the configuration relation of 2-4 type apron block and number, as can be seen, the inside and outside side dam holders model of rail is identical under the same configuration mode, to change the apron block number in the gauge adjustment and just need to change simultaneously inside and outside side dam holders model, and table 2 is listed is the utility model 0-4, the relation of 2-6 type apron block and number, as can be seen, the inside and outside side dam holders model difference of rail under the same configuration mode, four numbers of apron block are present in the interior outside of rail simultaneously, to change the apron block number in the gauge adjustment, only need the inside and outside side dam holders of transposing just can realize, and need not change.Table 1 table 2

The rail outside		The rail inboard
				The apron block model	The apron block number	The apron block number	The apron block model
0-6	0	6	0-6
				2-4	2	4	2-4
2-4	4	2	2-4
				0-6	6	0	0-6

The rail outside		The rail inboard
				The apron block model	The apron block number	The apron block number	The apron block model
0-4	0	6	2-6
				2-6	2	4	0-4
0-4	4	2	2-6
				2-6	6	0	0-4

Claims (2)

1, a kind of railway fastener optimum organization apron block, it is characterized in that: its cross section is by two long straight flanges, two short straight flanges and interior circular arc surround, the length of two long straight flanges is respectively 25.4mm, its crossing angle α is 120 °, arc radius R is 15mm, circular arc is 4.3mm apart from the minimum range a of two long straight flanges, C is 6.6mm, two short straight flanges are with corresponding long straight flange is parallel separately, its construction size is cut mutually to hand over long straight flange and circular arc respectively by it and decides, the length of apron block is the cylinder that identical cross section is superimposed as, and length is that the width of gauge apron adds 2mm, and the two ends of apron block respectively are injected with a blocking wall of termination point.

2, a kind of railway fastener optimum organization apron block, it is characterized in that: its cross section is by two long straight flanges, circular arc surrounds in the two short straight flanges and, the length of two long straight flanges is respectively 25.4mm, its crossing angle α is 120 °, arc radius R is 15mm, circular arc is 7.8mm apart from the minimum range b of two long straight flanges, d is 10.1mm, two short straight flanges are with corresponding long straight flange is parallel separately, its construction size is cut mutually with long straight flange and circular arc respectively by it and hands over decision, the length of apron block is the cylinder that identical cross section is superimposed as, and length is that the width of gauge apron adds 2mm, and the two ends of apron block respectively are injected with a blocking wall of termination point.