CN101381977B - Horizontal nib-hidden type long and short nose rail splitting method - Google Patents
Horizontal nib-hidden type long and short nose rail splitting method Download PDFInfo
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- CN101381977B CN101381977B CN2007101564088A CN200710156408A CN101381977B CN 101381977 B CN101381977 B CN 101381977B CN 2007101564088 A CN2007101564088 A CN 2007101564088A CN 200710156408 A CN200710156408 A CN 200710156408A CN 101381977 B CN101381977 B CN 101381977B
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- point rail
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Abstract
The invention relates to a method for splicing a horizontal tip-hidden type long point rail and a horizontal tip-hidden type short point rail. The rail body of the long point rail 1 and the rail body of the short point rail 2 are connected through a bolt; the position of the long point rail clinging to the short point rail is cut for 2 to 5 millimeters according to inner obliquity of 1:3 to 1:5; in the range of the long point rail clinging to the short point rail, the working side of a railhead of the long point rail forms a chamfer angle of 45 DEG C; a clinging side of the short point rail has outer obliquity of 1:3 to 1:5 and clings to the long point rail; and the width of the tip of the short point rail is about between 3 and 5 millimeters. The method has the following advantages: the horizontal hidden tip of the short point rail is favorable for the robustness of the short point rail structure and shortens the unsmoothness of the geometric vertical direction of the turnout on the horizontal hidden tip; at the same time, the rigidity on two sides of the long and the short point rail components tends to be consistent, which is favorable for the operation of an electrical service switching system.
Description
Technical field
The present invention relates to a kind of scheme of the long and short heart rail that will splice, belong to the long and short heart rail splitting method of iron dust railway switch device for shifting gears and make the field.
Background technology
Adopt point end closely connected between short heart rail of existing track switch and the long heart rail, in long heart rail and the closely connected position of short heart rail, long heart rail rail head is not cutting almost, and short heart rail is bigger in closely connected position cutting output, and the tip of short heart rail is relatively weaker; Simultaneously length heart rail is when conversion because the cutting of length heart rail is asymmetric, make track switch from the location to antiposition and bigger from antiposition conversion power difference to the transfer process of location.
No. 38 of China's movable center points from No. 12 to maximum, heart rail is single limb elasticity bendable structure, and promptly long heart rail heel end is fixed, and short heart rail heel end is the slidingtype movable joint, and the length splice sections adopts the bolt structure.Mode by the short heart rail of slicing realizes that point end is closely connected as accompanying drawing 2: its advantage is: long heart rail weakens few, and processing is simple; Shortcoming is: the one, and the closely connected position cutting output of short heart rail is bigger, and the tip is relatively weaker, and processing is comparatively complicated; The 2nd, long and short heart rail is in when conversion because the cutting of length heart rail is asymmetric, make track switch from the location to antiposition and bigger from antiposition conversion power difference to the transfer process of location; The 3rd, there is the not enough displacement of 3～5mm in long heart rail near the bendable section after conversion is closely connected, cause static gauge less than normal; The 4th, because there is expansion joint in the side thigh, structural weak not too is fit to side thigh high speed traveling; The 5th, the connecting bolt of length heart rail is stressed bigger, the on-the-spot phenomenon that fractures of also finding to have some.
The heart rail tip of Germany's railway frog is an overall structure, and the steel billet of anterior employing of heart rail and rail identical material is through the corner block of machining, and length heart rail is welded at the rear portion, and the welding position is at the position of the about 250mm of heart rail section width, and welding procedure is comparatively complicated.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, design a kind of intensity that can improve short heart rail tip, the joining method that the length heart of optimization length heart rail assembly conversion is returned.
Design scheme: in order to realize above-mentioned purpose of design.1, long heart rail with the closely connected position of short heart rail, by interior 1: 3～1: 5 oblique horizontal cutting 2～5mm, vacateed the space for the tip thickness of short heart rail, make that the tip of short heart rail is more sturdy; Secondly, long heart rail with the closely connected scope of short heart rail in, long heart rail rail head working edge carries out 45 ° of chamferings, to reduce the abrasion of wheel tread to long heart rail, the wheel load transition of improvement weak point heart rail simultaneously.2, lack the closely connected limit of heart rail be outer 1: 3～1: 5 tiltedly, with long heart rail " closely connected "; About the most advanced and sophisticated wide about 3～5mm of short heart rail, it is more sturdy to compare the short heart rail change of existing track switch, helps shortening the scope of short heart rail tread reduction value, has promptly shortened the vertical irregularity of track switch at this position.
Technical scheme: horizontal nib-hidden type long and short nose rail splitting method, long heart rail 1 adopts bolt to be connected with short heart rail 2 rail bodies, described long heart rail with the closely connected position of short heart rail, by interior 1: 3～1: 5 oblique horizontal cutting 2～5mm, long heart rail with the closely connected scope of short heart rail in, 45 ° of chamferings of long heart rail rail head working edge; The closely connected limit of described short heart rail be outer 1: 3～1: 5 tiltedly, with long heart rail " closely connected "; The most advanced and sophisticated wide about 3～5mm of short heart rail.
The present invention compares with background technology, lacks the horizontal tip-concealed of heart rail, and it is structural sturdy to help short heart rail, has shortened track switch at the vertical irregularity of the geometry at this position, and the rigidity of length heart rail assembly both sides reaches unanimity simultaneously, helps electric affair converting system running.
Description of drawings
Fig. 1 is the structural representation of length heart rail splicing.
Fig. 2 is the structural representation of background technology.
The specific embodiment:
Embodiment 1: with reference to accompanying drawing 1.The horizontal nib-hidden type long and short nose rail splitting method, long heart rail 1 adopts bolt to be connected with short heart rail 2 rail bodies, and described long heart rail 1 is in the position closely connected with short heart rail 2, by interior 1: 4 oblique horizontal cutting 4mm, long heart rail 1 with the closely connected scope of short heart rail 2 in, 45 ° of chamferings of long heart rail 1 rail head working edge; Described short heart rail 2 closely connected limits be outer 1: 4 tiltedly, closely connected with long heart rail 1, the short heart rail wide about 4mm in 2 tips.The processing technology of long heart rail 1 and existing technology mode difference are: 45 ° of chamferings of closely connected section rail head working edge, existing Processes and apparatus all can satisfy processing request.The short heart rail of short heart rail processing technology and existing track switch processing mode is basic identical, and existing Processes and apparatus all can satisfy processing request.
Embodiment 2: on the basis of embodiment 1, the horizontal nib-hidden type long and short nose rail splitting method, long heart rail 1 adopts bolt to be connected with short heart rail 2 rail bodies, described long heart rail 1 is in the position closely connected with short heart rail 2, by interior 1: 3 oblique horizontal cutting 2mm, long heart rail 1 with the closely connected scope of short heart rail 2 in, 45 ° of chamferings of long heart rail 1 rail head working edge; Described short heart rail 2 closely connected limits be outer 1: 3 tiltedly, closely connected with long heart rail 1; Short heart rail 2 most advanced and sophisticated wide about 3mm.
Embodiment 3: on the basis of embodiment 1, the horizontal nib-hidden type long and short nose rail splitting method, long heart rail 1 adopts bolt to be connected with short heart rail 2 rail bodies, described long heart rail 1 is in the position closely connected with short heart rail 2, by interior 1: 5 oblique horizontal cutting 5mm, long heart rail 1 with the closely connected scope of short heart rail 2 in, 45 ° of chamferings of long heart rail 1 rail head working edge; Described short heart rail 2 closely connected limits be outer 1: 5 tiltedly, closely connected with long heart rail 1; The most advanced and sophisticated wide about 5mm of short heart rail.
What need understand is: though the foregoing description is to the present invention's detailed explanation of contrasting; but these explanations, just to simple declaration of the present invention, rather than limitation of the present invention; any innovation and creation that do not exceed in the connotation of the present invention all fall into protection scope of the present invention.
Claims (3)
1. horizontal nib-hidden type long and short nose rail splitting method, long heart rail adopts bolt to be connected with short heart rail rail body, it is characterized in that: described long heart rail with the closely connected position of short heart rail, by interior 1: 3～1: 5 oblique horizontal cutting 2～5mm, long heart rail with the closely connected scope of short heart rail in, 45 ° of chamferings of long heart rail rail head working edge; The closely connected limit of described short heart rail be outer 1: 3～1: 5 tiltedly, with long heart rail " closely connected "; The most advanced and sophisticated wide about 3～5mm of short heart rail.
2. horizontal nib-hidden type long and short nose rail splitting method according to claim 1, it is characterized in that: described long heart rail with the closely connected position of short heart rail, by interior 1: 4 oblique horizontal cutting 3～4mm, long heart rail in the scope closely connected with lacking heart rail, 45 ° of chamferings of long heart rail rail head working edge.
3. horizontal nib-hidden type long and short nose rail splitting method according to claim 1 is characterized in that: the closely connected limit of described short heart rail be outer 1: 4 tiltedly, closely connected with long heart rail, the short heart rail wide about 4mm in tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101564088A CN101381977B (en) | 2007-10-25 | 2007-10-25 | Horizontal nib-hidden type long and short nose rail splitting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101564088A CN101381977B (en) | 2007-10-25 | 2007-10-25 | Horizontal nib-hidden type long and short nose rail splitting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101381977A CN101381977A (en) | 2009-03-11 |
| CN101381977B true CN101381977B (en) | 2011-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101564088A Active CN101381977B (en) | 2007-10-25 | 2007-10-25 | Horizontal nib-hidden type long and short nose rail splitting method |
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| CN (1) | CN101381977B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877382B (en) * | 2012-10-26 | 2015-02-11 | 大连铁联铁路器材制造有限公司 | Alloy steel reinforced point rail |
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- 2007-10-25 CN CN2007101564088A patent/CN101381977B/en active Active
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| CN101381977A (en) | 2009-03-11 |
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