CN214831544U - Improved freezing splint - Google Patents
Improved freezing splint Download PDFInfo
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- CN214831544U CN214831544U CN202121029860.XU CN202121029860U CN214831544U CN 214831544 U CN214831544 U CN 214831544U CN 202121029860 U CN202121029860 U CN 202121029860U CN 214831544 U CN214831544 U CN 214831544U
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Abstract
The utility model discloses an improved generation freezes splint, including railhead supporting part, support waist and rail foot supporting part, wherein, the railhead supporting part includes upper support terminal surface, improvement portion, and the terminal surface installation of contacting each other under the railhead of upper support terminal surface and guide rail, improvement portion form the accommodation space of wheel rim, and the improvement portion is the L type step body of 18mm of top downwardly extending from the upper support terminal surface. The utility model discloses freezing splint to the improved generation and having carried out the redesign of structure, high security, the high quality requirement that accords with subway operation, simultaneously can effectual improvement rail's life, the effectual fortune dimension cost that reduces the subway.
Description
Technical Field
The utility model relates to an improved generation freezes splint.
Background
In the subway operation process, the abrasion of the steel rail is inevitable, and the maximum vertical abrasion amount of the steel rail is generally set for the safe operation of the subway (the vertical abrasion heavy damage is 11mm specified by the general speed railway maintenance rule).
When the vertical abrasion amount reaches the maximum value, the existing standard clamping plate cannot meet the safety requirement during the emergency reinforcement of the rail damage, and at the moment, the wheel rim of the train is easy to scratch or collide with the convex part of the upper edge of the outer side of the clamping plate, so that the service life of the wheel is influenced, and the train derailment is easy to cause.
In the subway operation and maintenance process, in order to avoid the safety risk existing after the rail is reinforced due to damage when the vertical abrasion reaches the maximum value, when the vertical abrasion reaches 11mm, the rail needs to be immediately organized and replaced, and the replacement of the rail inevitably increases the cost expenditure, so that the service life of the rail is prolonged on the premise of ensuring the safe operation, the operation cost is saved, and the technical problem to be solved is solved.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model aims to provide a structure freezes splint through modified improved generation.
In order to achieve the above object, the utility model relates to an improved generation freezes splint, including railhead supporting part, support waist and railhead supporting part, wherein, railhead supporting part includes upper support terminal surface, improvement portion, and the terminal surface installation of contacting each other under the railhead of upper support terminal surface and guide rail, improvement portion form the accommodation space of wheel rim, and improvement portion is the L type step body of 18mm of top downwardly extending from upper support terminal surface.
Further, a radian with the diameter R being 2mm is arranged between the upper supporting end face and the upper end of the improved part.
Furthermore, the bent part in the L-shaped step body is provided with a radian with the diameter R being 6 mm.
Furthermore, the radian of diameter R which is 6mm is arranged at the junction of the L-shaped step body and the support waist part.
Further, radians with the diameter R being 8mm and the diameter R being 25mm are sequentially arranged between the upper support end face and the support waist part.
Further, the rail bottom supporting part is provided with a lower supporting end face, and the lower supporting end face and the rail bottom upper end face of the guide rail are installed in a mutual contact mode.
Furthermore, the radian with the diameter R being 20mm is arranged at the junction of the inner side of the support waist part and the lower support end surface.
Furthermore, the radian with the diameter R being 6mm and the diameter R being 30mm is sequentially arranged at the junction of the outer side of the support waist part and the lower support end face.
Furthermore, a plurality of bolt mounting holes are formed in the support waist part.
The utility model discloses freezing splint to the improved generation and having carried out the redesign of structure, high security, the high quality requirement that accords with subway operation, simultaneously can effectual improvement rail's life, the effectual fortune dimension cost that reduces the subway.
Drawings
FIG. 1 is a side view of an improved freeze splint;
FIG. 2 is a front view of an improved freeze splint;
FIG. 3 is a side view of the rail construction;
fig. 4 is a structural schematic view of the improved freezing clamp plate installed on the guide rail.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 according to specific situations by those skilled in the art.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
As shown in fig. 1, 2, 3 and 4, the improved freezing splint of the present invention comprises a rail head supporting part 1, a supporting waist part 2 and a rail bottom supporting part 3.
The guide rail 6 comprises a rail head 10 and a rail bottom 11, the rail head 10 is provided with a rail head lower end face 7, the rail bottom 11 is provided with a rail bottom upper end face 8, the rail head supporting part 1 comprises an upper supporting end face 4 and an improved part 5, and the upper supporting end face 4 and the rail head lower end face 7 of the guide rail 6 are installed in a mutual contact mode; the rail bottom support part 3 is provided with a lower support end surface 12, and the lower support end surface 12 is installed in contact with the rail bottom upper end surface 8 of the guide rail 6.
The utility model discloses improved generation freezes splint and generally sets up at the guide rail tip, and improved generation freezes and is provided with a plurality of bolt mounting hole 9 on the splint, specifically is: the support waist part 2 is provided with a plurality of bolt mounting holes 9, and the improved freezing splint is fixedly arranged on the guide rail 6 by installing fixing bolts in the bolt mounting holes 9 so as to be used for fixedly connecting two strands of steel rail joints.
When the wheel is mounted on the guide rail, the wheel rim extends downwards from the outer edge of the guide rail 6, the improved part 5 forms a containing space of the wheel rim, and the improved part 5 is an L-shaped step body which extends downwards 18mm from the top of the upper supporting end surface 4.
Through software simulation and theoretical calculation, the requirement of safe operation of the train can be met when the vertical abrasion of the steel rail reaches more than 15 mm. If the vertical abrasion heavy damage standard of the steel rail is adjusted to 18mm, the service life of the steel rail can be prolonged by 3 to 5 years according to the on-line steel rail abrasion change rule.
In order to solve the problem of reinforcing the damage of the guide rail after the vertical wear exceeds the standard value, the outer side upper edge profile of the standard clamping plate is optimized, and the independent design clamping plate can meet the reinforcement of the steel rail with the vertical wear amount of the steel rail within the range of 18mm through related safety verification.
The utility model relates to an improved generation freezes overall shape design of splint and is:
1. a radian with the diameter R of 2mm is arranged between the upper supporting end surface 4 and the upper end of the improved part 5;
2. the bent part in the L-shaped step body of the improved part 5 is provided with a radian with the diameter R being 6 mm;
3. the radian of the diameter R of the L-shaped step body of the improved part 5, which is equal to 6mm, is arranged at the junction of the L-shaped step body and the outer side of the support waist part 2;
4. continuous radians with the diameter R being 8mm and the diameter R being 25mm are sequentially arranged between the upper support end face 4 and the support waist part 2;
5. the radian of 20mm is set at the junction of the inner side of the support waist part 2 and the lower support end surface 12;
6. the continuous radian with the diameter R of 6mm and the diameter R of 30mm is sequentially arranged at the junction of the outer side of the support waist part 2 and the lower support end surface 12.
In this embodiment, an improved generation freezes splint, relevant technical requirement is:
1. the improved freezing splint is made of B7 steel;
2. the improved freezing splint should be subjected to integral heat treatment, the hardness is HB280-391, and after the heat treatment of the improved freezing splint and the binding surface of the steel rail, the hardness is HB 314-391;
3. machining the binding surface, machining according to the size shown in the drawing strictly, wherein the fillet at the edge is R2, and the chamfer of the bolt hole is 1.5 multiplied by 45-2 multiplied by 45 degrees;
4. the binding surface contacted with the steel rail is smooth, and the concave-convex size is not more than 0.25 mm;
5. the mass is 32.1 kg;
6. the high-strength bolt adopts M24 and has the strength grade of 12.9S;
7. the nut can adopt GB/T1329 corresponding high-strength nut or locknut (special line 9673-II-5);
8. the physical and mechanical properties of the bolt meet the requirements of technical conditions of high-strength large-angle bolts, large hexagon nuts and washers for steel structures (GB/T1231-1991) and mechanical property bolts, screws and studs of fasteners (GB/T3098.1-2000);
9. the freezing torque of the bolt is 1000-1400 N.m;
10. during installation, 8mm rail end plates are inserted into the rail gaps.
The utility model discloses in, through freezing the brand-new structural design of splint to the improved generation, satisfy the wearing and tearing and transfinite rail and consolidate safe in utilization demand, will prolong rail life 3 to 5 years, solved the rail and rubbed the damage reinforcement problem after surpassing basic standard perpendicularly, the effectual fortune dimension cost that reduces the subway.
Claims (9)
1. The utility model provides an improved generation freezes splint, its characterized in that includes the railhead supporting part, supports waist and rail foot supporting part, and wherein, the railhead supporting part includes upper support terminal surface, improvement portion, and the terminal surface installation of contacting each other under the railhead of upper support terminal surface and guide rail, the improvement portion forms the accommodation space of wheel rim, and the improvement portion is the L type step body of 18mm of top downwardly extending from the upper support terminal surface.
2. An improved freeze splint according to claim 1, wherein an arc of 2mm diameter R is provided between the upper support end surface and the upper end of the improved portion.
3. An improved freeze splint according to claim 1, wherein the bend in the L-shaped step body is provided with an arc of diameter R-6 mm.
4. An improved freeze splint as claimed in claim 1, wherein the junction of said L-shaped step body and support waist is provided with an arc of diameter R-6 mm.
5. An improved freezing splint according to claim 1, wherein the upper support end face and the support waist are sequentially provided with an arc of 8mm diameter R and 25mm diameter R.
6. An improved freeze splint according to claim 1, wherein the rail base support portion is provided with a lower support end surface which is mounted in contact with the rail base upper end surface of the guide rail.
7. An improved freeze splint as claimed in claim 6, wherein the junction of the inner side of the support waist and the lower support end face is provided with a radius of 20 mm.
8. An improved freezing splint according to claim 6, wherein the junction between the outer side of the support waist and the lower support end face is sequentially provided with radian measures of 6mm in diameter R and 30mm in diameter R.
9. An improved freeze splint as claimed in claim 1, wherein said support waist portion is provided with a plurality of bolt mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029860.XU CN214831544U (en) | 2021-05-14 | 2021-05-14 | Improved freezing splint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121029860.XU CN214831544U (en) | 2021-05-14 | 2021-05-14 | Improved freezing splint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214831544U true CN214831544U (en) | 2021-11-23 |
Family
ID=78774091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121029860.XU Active CN214831544U (en) | 2021-05-14 | 2021-05-14 | Improved freezing splint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214831544U (en) |
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2021
- 2021-05-14 CN CN202121029860.XU patent/CN214831544U/en active Active
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