CN218373035U - Single switch structure - Google Patents

Abstract

The utility model relates to a railway switch technical field discloses a singly open switch structure, including curve switch rail, straight stock rail the most advanced of curve switch rail is half tangent type from one another, straight stock rail orientation be provided with the depressed groove along its axial extension on one side lateral wall of curve switch rail, most advanced top horizontal width is more than or equal to the horizontal indent width of depressed groove, just most advanced length is less than or equal to the length of depressed groove. The single turnout structure can reduce unbalanced centrifugal acceleration under the condition of keeping lateral allowable speed of the turnout unchanged, improve passenger comfort, provide conditions for improving lateral passing speed of a train, reduce impact of wheels on the switch rail when the train passes through and prolong the service life of the switch rail.

Description

Single switch structure

Technical Field

The utility model relates to a railway technology field especially relates to a singly open switch structure.

Background

The turnout is a basic arrangement for branching a track into two or more tracks so that a rolling stock is transferred from one track to another track, and the turnout is special track equipment, thereby not only influencing the running safety of a train, but also having shorter service life than other equipment and having large field maintenance workload.

In the single-opening turnout widely adopted in the front railway vehicle section and the station yard, the radius of a guide curve of the turnout is smaller, a straight point rail is adopted, the point end adopts a hidden point type structure, the heel end adopts an interval iron type movable joint structure, the straight direction and the lateral direction of the turnout are converted by traction of a point switch, and the frog adopts a fixed high manganese steel integral casting type structure.

Therefore the train side direction is not balanced when passing through the switch, it is big to cause centrifugal acceleration, is showing the impression of taking that has reduced the train passenger, has also restricted the speed that the train side direction passes through the switch simultaneously, and the pointed end of sharp tongue constitutes the contained angle of straight turn with the stock rail in addition for the train wheel just can form strong impact to its small section through the pointed end of hiding the tongue formula structure, is unfavorable for switch overall structure's maintenance, aggravate the tongue side grinding again easily, greatly reduced switch life-span.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the single turnout structure can ensure that train passengers obtain better riding comfort and prolong the service life of the switch rail.

The utility model provides a singly open switch structure, includes curve switch rail, straight stock rail the most advanced of curve switch rail is for half tangent type that leaves mutually, straight stock rail orientation be provided with on one side lateral wall of curve switch rail along its axially extended undercut groove, most advanced top horizontal width is more than or equal to the horizontal indent width of undercut groove, just most advanced length is less than or equal to the length of undercut groove.

As the utility model discloses a preferred scheme, most advanced with the contained angle of straight stock rail is less than 1 degree, further reduces the pointed impact angle of switch blade, promotes the switch blade life-span better.

As the utility model discloses a preferred scheme, the radius of curve switch blade is 190m to 210m, avoids radius of curve too big and influence the planar arrangement of switch, keeps existing sharp frog structure, and the construction and application of being convenient for can reduce the train side direction again and cross the not balanced centrifugal acceleration when the switch, further improve the travelling comfort that the passenger took a bus.

As the utility model discloses an optimal scheme, single switch structure still includes frog and line rail, the heel end of frog with be connected with the joint splint between the line rail, it is firm to make frog and line rail relatively fixed, and the train is more stable during the process, and the travelling comfort when the train is taken in corresponding promotion.

As the utility model discloses an optimal scheme, the material of frog is alloy steel, and the heel end of frog with the butt joint of circuit rail seam forms seamless line, avoids the gap between the heel end of frog and the circuit rail to let the train of process produce the shock completely.

The embodiment of the utility model provides a single switch structure compares with prior art, and its beneficial effect lies in: when the single-opening turnout structure is applied, when the turnout lateral direction is realized by drawing the curved switch rail by the switch machine, the tip of the curved switch rail is matched and merged into the concave groove of the straight basic rail, and the concave groove gives a space of width, so that the tip correspondingly increases the end surface thickness of the switch rail, the service life of the switch rail is effectively prolonged, and the curved switch rail and the straight basic rail are smooth in transition, the unbalanced centrifugal acceleration can be reduced under the condition of keeping the lateral passing speed of the turnout unchanged, the passenger comfort is improved, conditions are provided for improving the lateral passing speed of a train, the impact of wheels on the switch rail when the train passes through is reduced, and the service life of the switch rail is prolonged.

Drawings

FIG. 1 is a floor plan of an embodiment of the present invention;

fig. 2 is a schematic plan view of the merging of a curved point rail and a straight stock rail according to the present invention;

figure 3 is an axial schematic view of the combination of a medium curve point rail and a straight stock rail according to the present invention;

fig. 4 is a schematic structural view of the middle frog heel end of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are used in a generic sense, e.g., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it should be further understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the machine or component in question must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Referring to fig. 1-3, the utility model provides a single switch structure of preferred embodiment, including curve point 1, straight stock rail 2 the most advanced 11 of curve point 1 is for half tangent type that leaves mutually, straight stock rail 2 orientation be provided with along the undercut 21 that the horizontal cutting that its axial extension formed on one side lateral wall of curve point 1, the top horizontal width of most advanced 11 is greater than or equal to the horizontal indent width of undercut 21, just the length of most advanced 11 is less than or equal to the length of undercut 21, when using this single switch structure, when switch traction curve point 1 realizes the switch side direction, the most advanced 11 of curve point 1 matches and merges to straight stock rail 2's undercut 21 in, because the space of undercut 21 has given out the width, therefore most advanced 11 has also correspondingly increased the terminal surface thickness of point, therefore the life-span of point obtains effective improvement, and curve point 1 and straight stock rail 2 transition, can the slick and sly reduce when the balance rail passes through the switch, effectively improves the riding comfort when taking the train side direction, provides the condition for the centrifugal acceleration of passenger.

Referring to fig. 2, the angle between the point 11 and the straight stock rail 2 is less than 1 degree, i.e. the point impact angle is less than 1 degree, which further reduces the point impact angle and improves the point life.

Referring to fig. 1, for example, the radius of the curved switch rail 1 is 190m to 210m, so that the situation that the plane layout of a turnout is affected due to the fact that the radius of the curve is too large can be avoided, the curve cannot invade into a frog to form a curved frog, the existing straight frog structure is maintained, construction and application are convenient, meanwhile, the unbalanced centrifugal acceleration of a train passing through the frog laterally can be reduced by about 10%, and the riding comfort of passengers is further improved.

Referring to fig. 1 and 4, the single switch structure further includes a frog 3 and a track rail 4, a joint clamp 5 is connected between the heel end of the frog 3 and the track rail 4, the two heel ends of the frog 3 are correspondingly separated, and the joint clamp 5 is connected with the track rail 4, so that the frog 3 and the track rail 4 are relatively fixed firmly, the train is more stable when passing through, and the comfort of riding the train is correspondingly improved.

Illustratively, the frog 3 is made of alloy steel, and the heel end of the frog 3 is welded and butted with the track steel rail 4, so as to form a seamless track, and completely prevent the shock of a passing train caused by a gap between the heel end of the frog 3 and the track steel rail 4.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be considered as the protection scope of the present invention.

Claims (5)

1. A singly open switch structure which characterized in that: including curve switch rail, straight stock rail the pointed end of curve switch rail is for the half tangent line type that leaves mutually, straight stock rail orientation be provided with on one side lateral wall of curve switch rail along its axially extended undercut groove, most advanced top horizontal width is more than or equal to the horizontal indent width of undercut groove, just most advanced length is less than or equal to the length of undercut groove.

2. A single switch structure as claimed in claim 1, wherein: the included angle between the tip and the straight stock rail is less than 1 degree.

3. A single switch structure as claimed in claim 1, wherein: the curved point rail has a curve radius of 190m to 210m.

4. A single switch structure according to any one of claims 1 to 3, wherein: the railway track further comprises a frog and a line steel rail, wherein a joint clamping plate is connected between the heel end of the frog and the line steel rail.

5. The single switch structure of claim 4, wherein: the frog is made of alloy steel, and the heel end of the frog is in butt joint with the line steel rail in a welding mode.

Images