CN111270643A - Heating mechanism for snow melting locking frame of railway turnout - Google Patents
Heating mechanism for snow melting locking frame of railway turnout Download PDFInfo
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- CN111270643A CN111270643A CN201811471484.2A CN201811471484A CN111270643A CN 111270643 A CN111270643 A CN 111270643A CN 201811471484 A CN201811471484 A CN 201811471484A CN 111270643 A CN111270643 A CN 111270643A
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- heating mechanism
- snow melting
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 238000002844 melting Methods 0.000 title claims abstract description 17
- 230000008018 melting Effects 0.000 title claims abstract description 17
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 39
- 238000005485 electric heating Methods 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000004080 punching Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/02—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast
- E01H8/08—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast by application of heat, e.g. by means of heated clearing instruments, melting in situ; Clearing devices which melt the dislodged snow; Clearing exclusively by means of rays or streams or gas or stream, or by suction
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Railway Tracks (AREA)
Abstract
The invention relates to a heating mechanism for a railway turnout snow melting locking frame, which is characterized in that: the electric heating device comprises an electric heating element (1), an aluminum alloy heat-conducting cushion block (2), an elastic clamp (3), an elastic pressing sheet (4), an aluminum alloy triangular filling block (5), a railway turnout (9) and a locking frame (10); locking frame (10) be connected with railway switch (9) through bolt and nut, locking frame (10) have an extension platform at bolt and nut's lower extreme, elasticity fixture (3) card is in extension platform both sides, elasticity fixture (3) joint elasticity preforming (4) and aluminum alloy heat conduction cushion (2) simultaneously, elasticity preforming (4) one end is fixed in the bolt and nut that locking frame (10) and railway switch (9) are connected, connecting L type 180W electric heating element (1) through elasticity preforming (4). The heating mechanism for the snow melting locking frame of the railway turnout is high in heating efficiency, good in safety and convenient to use and install.
Description
Technical Field
The invention is suitable for heating the locking frames of various types of external locking track devices matched with all domestic turnouts, in particular to a heating mechanism for a snow melting locking frame of a railway turnout.
Background
In cold areas in the north of China, particularly in northeast areas, continuous heavy snow covers the outer locking device of the turnout in winter, so that the locking frame, the locking rod, the locking iron, the locking hook, the locking frame, the locking hook and other parts are frozen together, the outer locking device cannot normally work, the turnout cannot be flexibly switched, the train runs in an unsafe state, common accidents such as wrong train running, late train running and the like are caused, and the problem is particularly prominent for high-speed railways. At present, the main method for melting snow at the locking device outside a domestic turnout is to install a heating plate under a locking frame, and as the heating heat is transmitted through heat radiation, the heating efficiency is low, the effect is very little, and especially under the condition of strong wind, a large amount of heat can be lost in the air, and the snow can not be removed basically. Therefore, the external locking device can be manually snow-removed and deiced on site only by using heating tools such as a blast lamp, a hot air gun and the like, the labor intensity is very high, the operation is troublesome and unsafe, and tragic training of casualties caused by snow removal is also generated once, so that the snow-removing and deicing device with higher heating efficiency is urgently needed to effectively heat the external locking device.
Disclosure of Invention
The invention aims to provide a heating mechanism of a railway turnout snow melting locking frame, which has the advantages of higher heating efficiency, good safety and convenient use and installation.
The invention aims to realize the purpose, and provides a heating mechanism for a railway turnout snow melting locking frame, which is characterized in that: the electric heating device comprises an electric heating element, an aluminum alloy heat conduction cushion block, an elastic clamp, an elastic pressing sheet, an aluminum alloy triangular filling block, a railway turnout and a locking frame; the locking frame pass through bolt and nut and be connected with railway switch, the locking frame has an epitaxial platform at bolt and nut's lower extreme, and the elasticity fixture card is in the both sides of epitaxial platform, and elasticity preforming and aluminum alloy heat conduction cushion block are connected to the elasticity fixture joint simultaneously, and the one end of elasticity preforming is fixed in the bolt and nut that locking frame and railway switch are connected, is connecting L type 180W electric heating element through the elasticity preforming.
The electric heating element is an L-shaped 180W resistance heater and is fixed on the extension table by a fastening piece group, and the fastening piece group comprises a screw, a nut and an elastic sheet.
The aluminum alloy heat conduction cushion block is of a long strip structure, is connected with the railway turnout and the locking frame and is used for transmitting the heating temperature of the electric heating element to the railway turnout.
The elastic clamping device is of a U-shaped closing-up structure, an elastic metal clamping edge is arranged on the outer side of the U-shaped closing-up structure, the U-shaped closing-up structure is used for clamping the locking frame, and the elastic metal clamping edge is used for clamping the electric heating element.
The elastic pressing sheet is punched by a metal belt with the thickness of 1.2mm to form an L shape, one surface of the L shape is provided with a connecting hole, and the fastening piece group penetrates through the connecting hole and is connected with the railway turnout through the locking frame.
The aluminum alloy triangular filling block is an aluminum alloy piece.
The locking frame is composed of three sections, the first section and the third section are in transition through the second section, the three sections are of an integral structure, the first section is parallel to the third section, the second section is perpendicular to the first section and the third section, an oval connecting hole is formed in the middle of the first section and used for being connected with a railway turnout through bolts and nuts, triangular cut angles are formed in two ends of the second section, the triangular cut angles are the same as the shape of an aluminum alloy triangular filling block, and the aluminum alloy triangular filling block is installed at the cut angle of the locking frame.
The installation process of the invention is as follows: firstly, the assembly of other parts except the aluminum alloy heat conduction cushion block is finished according to the following figure 1, then the elastic clamp part is opened and sleeved in the locking frame, at the moment, the heating device tightly buckles the locking frame by means of the elasticity of the heating device, finally, the bolt for fixing the locking frame is loosened, the elastic pressing sheet is inserted into and fastens the bolt, the elastic pressing sheet plays a role in double fastening, and after the electric heating element is electrified, heat can heat the locking frame through the aluminum alloy heat conduction cushion block and the L-shaped 180W electric heating element.
The invention has the advantages that: the heating efficiency is high, and different from the traditional heating plate type indirect heating, the device adopts direct heat conduction heating, and adopts aluminum alloy materials with excellent heat conduction performance to conduct heat, so that the heating efficiency is high, the heating effect is obvious, a large amount of electric energy can be saved, and the purposes of energy conservation and emission reduction are realized; the method is simple and reliable; the heating mechanism has a simple structure, is tightly fixed on the locking frame by utilizing the self elasticity of the elastic clamp, adopts mechanical limiting and positioning, and has an installation part far away from a moving part of the external locking device, so that the heating mechanism basically has no influence on the normal work of the external locking device and simultaneously has no influence on a track circuit; in particular, the heating strips are flat, which provides a larger contact surface than the tubular heating elements, which increases the heat transfer area, which is very beneficial for heat conduction; meanwhile, a 0.3mm metal shell is adopted to highly compress the heating conductor and the insulating material for packaging, and one end of the outgoing wire is provided with the outgoing wire, the outer layer protection of the outgoing wire adopts the silicone rubber spiral protection, so that the outgoing wire has extremely strong corrosion resistance and ageing resistance, the service life is as long as 15 years, and the universality is extremely strong. The heating mechanism is simultaneously suitable for switch rails and point rails of turnouts, and the electric heating elements can be reversed according to actual conditions during field installation, so that the left installation and the right installation of the point switch are not distinguished, the point greatly facilitates the field installation and maintenance, and the principle of failure safety is met. The movement characteristics of the outer locking device are considered during design, and the mounting position is furthest away from the movement part of the outer locking device, so that when the conditions of bolt loosening or breakage of the elastic clamp and the like occur, the heating mechanism can fall off on a road bed under the action of gravity, the influence on original conversion equipment can not be generated, and the adaptability is high. The heating mechanism is made of elastic thin-wall sheet metal materials, occupies extremely small space of a turnout, is particularly suitable for turnouts with narrow installation spaces such as 12-number compound intersection SC350 and the like, is convenient to disassemble, and is tightly fixed on a locking frame by utilizing the elasticity of an elastic clamp, so that the turnout can be easily disassembled by only a straight screwdriver during disassembly.
The invention is suitable for heating the locking frame of all turnout external locking device of various types in China, can be conveniently and quickly mounted and dismounted by reliably fixing the locking frame with the locking frame through the locking frame fixing bolt and the self elasticity, does not change the structure of the existing locking frame, and achieves the purpose of quickly heating the locking frame, thereby ensuring the turnout parameters (opening range and locking amount) and the gap index requirements of a point switch, ensuring the turnout and each parameter index of conversion equipment to be in good states, ensuring the normal conversion and indoor signals of the turnout, and maintaining the driving safety of railways.
The invention is further explained below with reference to the drawings of the embodiments.
Drawings
FIGS. 1A and 1B are schematic views of two sides of an embodiment of the present invention;
FIG. 2 is a schematic diagram of an L-shaped 180W resistance heater configuration;
FIG. 3 is a schematic view of an aluminum alloy thermal pad;
FIG. 4 is a schematic view of the construction of the sprung jaws;
FIG. 5 is a schematic view of the structure of the elastic pressing sheet;
FIG. 6 is a schematic diagram of a triangular shim block structure;
fig. 7A and 7B are schematic views of different sides of the locking frame structure.
In the figure: 1. an electrical heating element; 2. an aluminum alloy heat conducting cushion block; 3. an elastic clamp; 4. Elastic tabletting; 5. an aluminum alloy triangular filling block; 6-8, fastener group; 9 railway turnouts; 10. and a locking frame.
Detailed Description
As shown in figure 1, the invention relates to a heating mechanism of a railway turnout snow melting locking frame, which is characterized in that: the device comprises an L-shaped 180W electric heating element 1, an aluminum alloy heat-conducting cushion block 2, an elastic clamp 3, an elastic pressing sheet 4, an aluminum alloy triangular filling block 5, fastener groups 6-8, a railway turnout 9 and a locking frame 10; locking frame 10 be connected with railway switch 9 through bolt and nut, locking frame 10 has an epitaxial platform at bolt and nut's lower extreme, 3 cards of elasticity fixture are in the both sides of extending the platform, elasticity fixture 3 joint elasticity preforming 4 and aluminum alloy heat conduction cushion 2 simultaneously, 4 one ends of elasticity preforming are fixed in the bolt and nut that locking frame 10 and railway switch 9 are connected, connecting L type 180W electric heating element 1 through elasticity preforming 4, fastener group 6 ~ 8 includes screw 6, nut 7 and flexure strip 8.
As shown in fig. 2, the electric heating element 1 is an L-shaped 180W resistance heater.
As shown in fig. 3, the aluminum alloy heat-conducting spacer block 2 is a long strip structure, and is connected with the railway switch 9 and the locking frame 10, and is used for conducting the heating temperature of the electric heating element 1 to the railway switch 9.
As shown in fig. 4, the elastic fixture 3 has a U-shaped closing structure, an elastic metal clamping edge is arranged outside the U-shaped closing structure, the U-shaped closing structure is used for clamping the locking frame 10, and the elastic metal clamping edge is used for clamping the electric heating element 1.
As shown in fig. 5, the elastic pressing plate 4 is formed by punching a metal strip with the thickness of 1.2mm to form an L shape, one surface of the L shape is provided with a connecting hole, and a fastener group penetrates through the connecting hole and is connected with the railway turnout 9 through a locking frame 10.
As shown in fig. 6, the aluminum alloy triangular filling block 5 is an aluminum alloy member.
As shown in fig. 7, the locking frame 10 is composed of three sections, the first section and the third section are transited through the second section, the three sections are of an integral structure, the first section is parallel to the third section, the second section is perpendicular to the first section and the third section, an oval connecting hole is arranged in the middle of the first section and used for being connected with a railway turnout 9 through bolts and nuts, triangular chamfers are arranged at two ends of the second section, the triangular chamfers are the same as the aluminum alloy triangular filling blocks 5 in shape, and the aluminum alloy triangular filling blocks 5 are arranged at the chamfers of the locking frame 10.
The elastic clamp 3 and the elastic pressing sheet 4 are both made of 1.2mm elastic materials, so that the clamping hook structure of the elastic clamp can ensure that the heating mechanism is fixed on the locking frame 10 and cannot fall off, the aluminum alloy heat-conducting cushion block 2 and the aluminum alloy triangular filling block 5 are both made of aluminum alloy materials, and the quick and efficient heat conduction is ensured, and the installation process of the invention is as follows: firstly, according to the following figure 1, the assembly of other parts except the aluminum alloy heat conduction cushion block 3 is completed, then the elastic clamp part 3 is opened and sleeved in the locking frame 10, at the moment, the heating mechanism tightly buckles the locking frame 10 by means of the elasticity of the heating mechanism, finally, the bolt for fixing the locking frame 10 is loosened, the elastic pressing sheet 4 is inserted into and fastens the bolt, the elastic pressing sheet 4 plays a role in double fastening, and after the electric heating element 1 is electrified, heat can heat the locking frame 10 through the aluminum alloy heat conduction cushion block 2 and the L-shaped 180W electric heating element 1. The size and performance parameters of the L-shaped electric heating element 1 relate to the invention, the thickness of the heating element is 5.5mm, a flat structure is adopted, the heat transfer area is increased, meanwhile, a metal shell with the thickness of 0.3mm is adopted to highly compress a heating conductor and an insulating material for packaging, and a wire is led out at one end, the outer layer protection of the outgoing wire is spiral-type protection of silicon rubber, so that the L-shaped electric heating element has extremely strong corrosion resistance and ageing resistance. The elastic clamp 3 is buckled on the locking frame 10 by the elasticity of the elastic clamp, so that the locking device is simple and reliable, the outer locking frame 10 can be installed without any change or disassembly, and the normal work of the outer locking device is not influenced; the heating mechanism is convenient to mount and dismount, can be mounted without changing the turnout locking frame 10, and has great significance for mounting existing lines; the locking frame 10 is heated by the aluminum alloy heat-conducting cushion block 2 and the L-shaped 180W electric heating element 1, so that the aims of efficiently removing snow and ice are fulfilled.
Claims (8)
1. A heating mechanism for a snow melting locking frame of a railway turnout is characterized in that: the electric heating device comprises an electric heating element (1), an aluminum alloy heat-conducting cushion block (2), an elastic clamp (3), an elastic pressing sheet (4), an aluminum alloy triangular filling block (5), a railway turnout (9) and a locking frame (10); locking frame (10) be connected with railway switch (9) through bolt and nut, locking frame (10) have an extension platform at bolt and nut's lower extreme, elasticity fixture (3) card is in extension platform both sides, elasticity fixture (3) joint elasticity preforming (4) and aluminum alloy heat conduction cushion (2) simultaneously, elasticity preforming (4) one end is fixed in the bolt and nut that locking frame (10) and railway switch (9) are connected, connecting L type 180W electric heating element (1) through elasticity preforming (4).
2. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: the electric heating element (1) is an L-shaped 180W resistance heater and is fixed on the epitaxial table through a fastening piece set (6-8), and the fastening piece set (6-8) comprises a screw (6), a nut (7) and an elastic sheet (8).
3. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: the aluminum alloy heat conduction cushion block (2) is of a long strip structure, is connected with the railway turnout (9) and the locking frame (10) and is used for conducting the heating temperature of the electric heating element (1) to the railway turnout (9).
4. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: the elastic clamping device (3) is of a U-shaped closing-up structure, an elastic metal clamping edge is arranged on the outer side of the U-shaped closing-up structure, the U-shaped closing-up structure is used for clamping the locking frame (10), and the elastic metal clamping edge is used for clamping the electric heating element (1).
5. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: elastic pressing sheet (4) adopt the metal strap punching press of 1.2mm thick to form the L type, L type one side has the connecting hole, fastener group (6 ~ 8) pass the connecting hole and connect through locking frame (10) and railway switch (9).
6. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: the aluminum alloy triangular filling block (5) is an aluminum alloy piece.
7. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: the locking frame (10) is composed of three sections, the first section and the third section are in transition through the second section, the three sections are of an integral structure, the first section is parallel to the third section, the second section is perpendicular to the first section and the third section, an oval connecting hole is formed in the middle of the first section and used for being connected with a railway turnout (9) through bolts and nuts, triangular cut angles are formed in two ends of the second section, the triangular cut angles are identical to the triangular filling blocks (5) in shape, and the triangular filling blocks (5) are installed at the cut angles of the locking frame (10).
8. The railroad switch snow melting locking frame heating mechanism of claim 1, wherein: after the assembly of other parts outside the aluminum alloy heat conduction cushion block (2) is finished, the elastic clamp part is opened and sleeved into the locking frame (10), the locking frame (10) is tightly buckled by the heating mechanism through the elasticity of the heating mechanism, the bolt for fixing the locking frame (10) is loosened at last, the elastic pressing sheet (4) is inserted into and fastened with the bolt, the elastic pressing sheet (4) plays a role in dual fastening, and after the electric heating element is electrified, the heat can heat the locking frame (10) through the aluminum alloy heat conduction cushion block (2) and the L-shaped 180W electric heating element (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471484.2A CN111270643A (en) | 2018-12-04 | 2018-12-04 | Heating mechanism for snow melting locking frame of railway turnout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471484.2A CN111270643A (en) | 2018-12-04 | 2018-12-04 | Heating mechanism for snow melting locking frame of railway turnout |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111270643A true CN111270643A (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471484.2A Pending CN111270643A (en) | 2018-12-04 | 2018-12-04 | Heating mechanism for snow melting locking frame of railway turnout |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111270643A (en) |
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2018
- 2018-12-04 CN CN201811471484.2A patent/CN111270643A/en active Pending
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