CN113123181A - Frog capable of being replaced on line and replacing method thereof - Google Patents
Frog capable of being replaced on line and replacing method thereof Download PDFInfo
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- CN113123181A CN113123181A CN202110418896.5A CN202110418896A CN113123181A CN 113123181 A CN113123181 A CN 113123181A CN 202110418896 A CN202110418896 A CN 202110418896A CN 113123181 A CN113123181 A CN 113123181A
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- rail
- insert
- frog
- wing
- fork
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
Abstract
The invention relates to a frog capable of being replaced on line and a replacing method thereof, wherein the frog comprises a frog wing rail, a wing rail insert, insert spacer irons, a point rail, a fork heel rail and a fork heel rail spacer iron, the wing rail insert is connected to the inner side of the middle part of the frog wing rail, the insert spacer iron is embedded in the middle part of the inner wall of the wing rail insert, the point rail is embedded in one side, away from the wing rail insert, of the insert spacer iron, the outer wall of the tail end of the point rail is embedded with the fork heel rail, and a high-strength bolt of the fork heel rail penetrates through the middle part of the joint of the fork heel rail and the point rail. The invention is based on an inlaid wing rail type alloy steel combined frog structure (TB/T3467-2016), wherein a frog is composed of an insert, a wing rail, a fork heel rail, a point rail and the like, all parts are combined together through a structure (matching surface is obtained through numerical control machining) of mutual matching relation, and the insert and the point rail are quick-wear parts. Through the arrangement of the structure, the replacement of the insert and the point rail can be realized under the condition of not disassembling or replacing the frog and the line connecting joint.
Description
Technical Field
The invention relates to the field of basic rail traffic equipment of a core component of a railway turnout, in particular to a frog capable of being replaced on line and a replacing method thereof.
Background
A switch is a line connection device for a rolling stock to be switched from one track to another, and is one of weak links of a track, and is usually laid in a large number at a station and a marshalling station. With the turnout, the passing capacity of the line can be fully exerted. Even if a single-track railway is paved with turnouts, and a section of fork line with the length larger than that of a train is constructed, the train can be opened, and the turnouts play an important role on railway lines.
The main structure of the existing alloy steel frog is also a forged alloy steel point rail combined frog, an alloy steel rail combined frog and a welded wing rail reinforced alloy steel combined frog, the wing rails of the three frog keep the appearance of the steel rail, and the vulnerable positions and the wing rail main body are of an integral structure, so that the vulnerable parts cannot be replaced independently when losing efficacy; the alloy steel rail combined frog point rail and the frog heel rail are of an integral structure, and the point rail cannot be independently replaced when being damaged; the point rail and the fork heel rail of the frog with other two structures are of split structures, the point rail can be independently replaced when the point rail fails, but after the point rail is independently replaced, the point rail and the wing rail have the problem of new and old matching, the design height difference between the old wing rail and the new point rail cannot meet the requirement, the point rail and the new point rail can not be replaced in time, the whole service life of the frog cannot be guaranteed, the early wing rail embedded alloy steel combined frog insert is matched with the wing rail and the point rail and the fork heel rail only through rail heads, the lower jaw of the rail heads and the upper slope of the rail bottoms have no matching relation, the wing rail is the initial blank surface, the size consistency cannot meet the requirement of repeated disassembly and assembly, and therefore, the frog capable of being replaced on line and the replacing method thereof are provided.
Disclosure of Invention
The invention aims to provide an on-line replaceable frog and a replacing method thereof, which aim to solve the problems that the main structure of the existing alloy steel frog proposed in the background technology also comprises a forged alloy steel point rail combined frog, an alloy steel rail combined frog and a welded wing rail reinforced alloy steel combined frog, the wing rails of the three frog retain the appearance of the steel rail, the vulnerable position and the wing rail main body are of an integral structure, and the vulnerable part cannot be replaced independently when failing; the alloy steel rail combined frog point rail and the frog heel rail are of an integral structure, and the point rail cannot be independently replaced when being damaged; other two kinds of structures frog point rail and fork are the components of a whole that can function independently structure with the rail with the heel, can change alone when the point rail appears inefficacy, but after changing the point rail alone, there is a new and old problem that matches in point rail and wing rail, old wing rail and new point rail design difference of height can't satisfy the requirement, in time change, the whole life-span of frog also can't guarantee, and early inlaying wing rail formula alloy steel combination frog and inserting and wing rail, point rail and fork are followed the rail and only pass through the railhead cooperation, rail head chin and rail bottom slope surface all do not have the fit relation, the wing rail is initial blank surface, the problem that the requirement of repeated dismouting can't be satisfied to size uniformity.
In order to achieve the purpose, the invention provides the following technical scheme: the frog capable of being replaced on line and the replacing method thereof comprise a frog wing rail, a wing rail insert, insert spacer iron, a point rail, a fork heel rail and a fork heel rail spacer iron, wherein the wing rail insert is connected to the inner side of the middle part of the frog wing rail, the insert spacer iron is embedded in the middle of the inner wall of the wing rail insert, the point rail is embedded in one side, away from the wing rail insert, of the insert spacer iron, the fork heel rail is embedded in the outer wall of the tail end of the point rail, a fork heel rail high-strength bolt penetrates through the middle of the joint of the fork heel rail and the point rail, a fork heel rail spacer iron is embedded in the middle of the joint of the fork heel rail and the frog wing rail, a steel rail pressing plate is welded on one side of the bottoms of the fork wing rail and the fork heel rail, the insert spacer iron and the point rail, and the insert high-strength bolt penetrates through the middle of the frog wing rail, the.
Preferably, the projections at two sides of the insert spacing iron are matched with the grooves in the middle of the front ends of the wing rail insert and the center rail in size, and the insert spacing iron is symmetrically distributed along two sides of the center rail.
Preferably, the tail end inner wall of the point rail and the outer wall of the front end of the fork and the heel rail are mutually attached, and the point rail is of a detachable structure through the fork and the heel rail high-strength bolt and the fork and the heel rail.
Preferably, the fork and rail spacing iron is of an I-shaped structure, two sides of the outer wall of the fork and rail spacing iron are arc-surface-shaped, and the arc surfaces of the fork and rail spacing iron are matched with the fork and rail and the frog wing rail.
Preferably, the frog wing rail forms a detachable structure with the wing rail insert through the high-strength bolt of the insert, and the wing rail insert is tightly attached along the inner wall of the frog wing rail.
Preferably, the replacement method comprises the following specific steps:
(1) a new bolt (comprising a washer and a nut) needing to be replaced is prepared in advance, and the end of the bolt is marked.
(2) The serial numbers of bolts and steel rail washers are marked on frog wing rails in advance, and the theoretical tip position of the frog is marked through a guard rail stock rail.
(3) The fastener bolt is loosened and the spring strip is removed.
(4) The horizontal bolts of the frog connecting the wing rail to the other rail members are loosened and removed.
(5) And replacing the wing rail insert, the frog wing rail, the point rail and the fork heel rail.
(6) And (4) placing the insert spacing iron and the fork and rail spacing iron back according to the original positions, pulling the frog wing rail and the wing rail insert back to the original positions, and threading the insert high-strength bolt back according to the marked serial number. Adjusting the front and back positions of the insert spacing iron and the fork and rail spacing iron, and finally tightening the horizontal bolt by using a torque wrench, wherein the torque is set to be 1200 N.M.
(7) And measuring and adjusting the gauge, installing the fastener back and screwing. And tightening the switch tie bolt.
(8) And polishing the smoothness of the wing rail insert and the top surface of the frog wing rail by using a polishing machine.
(9) And measuring the height difference value between the new and old parts, and correcting the height difference value to be within a standard range by using an angle grinder. And measuring the profile after polishing by using the profile sample plate to ensure that the profile meets the line requirement.
(10) Tamping the track bed, checking tools, checking the line and finishing the operation.
Preferably, the specific steps of replacing the wing rail insert are as follows:
firstly, poking wing rails and wing rail inserts of the frog by using a crowbar, and taking out all insert spacer irons.
Loosening and taking out the high-strength bolts of the frog wing rail and the insert; tapping the frog wing rail by using an iron hammer, vibrating and loosening the wing rail insert, prying the wing rail insert by using a crowbar, sleeving iron wires on two ends of the wing rail insert, lifting the wing rail insert out of a circuit, and removing rust and the like in the frog wing rail by using cotton yarns.
And thirdly, putting a new wing rail insert, adjusting the position of the wing rail insert by using a crowbar, and penetrating an insert high-strength bolt connected with the wing rail.
Preferably, the specific steps of replacing the wing rail are as follows:
firstly, poking wing rails and wing rail inserts of the frog by using a crowbar, and taking out all insert spacer irons.
Loosening and taking out the high-strength bolts of the frog wing rail and the insert; tapping the frog wing rail by using an iron hammer, vibrating and loosening the wing rail insert, prying the wing rail insert by using a crowbar, sleeving iron wires on two ends of the wing rail insert, lifting the wing rail insert out of a circuit, and removing rust and the like in the frog wing rail by using cotton yarns.
And thirdly, putting a new frog wing rail, and adjusting the position of the frog wing rail by using a crowbar.
And fourthly, putting the existing wing rail insert, adjusting the position of the wing rail insert by using a crowbar, and penetrating the insert high-strength bolt connected with the frog wing rail.
The rest of the steps are the same as insert replacement.
Preferably, the specific steps of replacing the head rail and the fork and heel rail are as follows:
firstly, poking wing rails and wing rail inserts of the frog by using a crowbar, and taking out all insert spacer irons.
And secondly, loosening and taking out the high-strength bolt for connecting the center rail and the fork and heel rail.
Thirdly, the front part of the core rail is tied by iron wires, the fork and heel rails are poked by a crow bar, the core rail is moved out of the fork and heel rails, the tail part of the core rail is sleeved with the iron wires, and the core rail is lifted out of the circuit. The fork and the heel rail can be moved out of the line by a crowbar and the like. The point rail and the fork and heel rail can be replaced independently.
And fourthly, placing the new point rail and the fork and heel rail, and moving the point rail into the fork and heel rail.
And fifthly, adjusting the front and back positions and the height positions of the center rail and the fork and heel rail, and penetrating a fork and heel rail high-strength bolt connected between the center rail and the fork and heel rail. And (5) a gasket and a nut are arranged, and the nut is screwed.
Compared with the prior art, the invention has the following beneficial effects:
the invention is based on an inlaid wing rail type alloy steel combined frog structure (TB/T3467-2016), wherein a frog is composed of an insert, a wing rail, a fork heel rail, a point rail and the like, all parts are combined together through a structure (matching surface is obtained through numerical control machining) of mutual matching relation, and the insert and the point rail are quick-wear parts. Through the arrangement of the structure, the replacement of the insert and the point rail can be realized under the condition of not disassembling or replacing the frog and the line connecting joint.
Insert interval iron along the both sides symmetric distribution of heart rail, the whole interval iron of inserting inserts and the connection bridge between the heart rail as the wing rail, and whole rigidity intensity is high, stable in structure, evenly distributed inserts and the heart rail between the wing rail, every interval iron middle part of inserting simultaneously sets up the screw of being convenient for run through the high strength bolt that inserts, further improves overall connection intensity, and insert interval iron bellying embedding to wing rail insert and the heart rail concave surface, ensure that overall structure is complete, stable in structure.
The point rail is through the fork with the rail high strength bolt and the fork with the rail between be detachable construction, the point rail adopts split type design with the fork with the rail, relative with the point rail and the fork of integral type design with the rail, when the damage appears in the point rail, the accessible separates point rail and fork with the rail, reach and change the part demand, and whole point rail, the fork is with the rail, frog wing rail, wing rail inserts, the spacer iron of inserting and fork are with rail spacer iron adoption numerical control processing, guarantee that each part size is unanimous, satisfy and in time change each part, also ensure overall structure compactness simultaneously.
The cambered surface of the fork and rail spacing iron is matched with the fork and rail and frog wing rail, the fork and rail spacing iron is used as a bridge between the fork and rail and the frog wing rail, and a U-shaped bridge floor is formed between the I-shaped cambered surface of the fork and rail and the frog wing rail, so that the condition that train wheels drive over can be effectively met, the connection strength between the fork and rail and the frog wing rail is enhanced simultaneously, and the structure can operate at effective strength.
Drawings
FIG. 1 is a schematic structural diagram of an on-line replaceable frog and a method for replacing the same according to the present invention;
FIG. 2 is a schematic structural diagram of a cross section of a frog wing rail and a frog point rail connection of an on-line replaceable frog and a replacing method thereof according to the present invention;
fig. 3 is a schematic structural diagram of a cross section of a frog wing rail and a frog heel rail connection of the frog capable of being replaced on line and a replacing method thereof.
In the figure: 1. a frog wing rail; 2. a wing rail insert; 3. spacing iron between the inserts; 4. a point rail; 5. a fork-heel rail high-strength bolt; 6. a fork-heel rail; 7. a fork-and-rail spacing iron; 8. pressing plates for steel rails; 9. insert high strength bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a frog capable of being replaced on line and a replacing method thereof comprise a frog wing rail 1, a wing rail insert 2, an insert spacer 3, a point rail 4, a fork-heel rail high-strength bolt 5, a fork-heel rail 6, a fork-heel rail spacer 7, a steel rail pressing plate 8 and an insert high-strength bolt 9, wherein the wing rail insert 2 is connected to the inner side of the middle of the frog wing rail 1, the insert spacer 3 is embedded in the middle of the inner wall of the wing rail insert 2, the frog wing rail 1 and the wing rail insert 2 form a detachable structure through the insert high-strength bolt 9, the wing rail insert 2 is tightly attached to the inner wall of the frog wing rail insert 1, the wing rail insert 2 is used as a contact surface directly contacting with a wheel and is easy to wear in long-term operation, the frog wing rail insert 1 and the wing rail insert 2 are of a split structure, timely maintenance and timely replacement requirements can be met well, the point rail 4 is embedded in one side of the insert spacer 3, which is far away from the wing rail insert 2, and the two side bulges of the insert spacer 3 are in size same as the size of The insert spacing irons 3 are symmetrically distributed along two sides of the center rail 4, the whole insert spacing iron 3 is used as a connecting bridge between the wing rail insert 2 and the center rail 4, the integral rigidity strength is high, the structure is stable, the insert spacing irons are uniformly distributed between the wing rail insert 2 and the center rail 4, meanwhile, the middle part of each insert spacing iron 3 is provided with a screw hole which is convenient for penetrating through an insert high-strength bolt 9, the integral connecting strength is further improved, and the convex surface of the insert spacing iron 3 is embedded into the concave surfaces of the wing rail insert 2 and the center rail 4, so that the integral structure is ensured to be complete, and the structure is stable;
a fork and rail 6 is embedded in the outer wall of the tail end of a point rail 4, a fork and rail high-strength bolt 5 penetrates through the middle of the joint of the fork and rail 6 and the point rail 4, the inner wall of the tail end of the point rail 4 is mutually attached to the outer wall of the front end of the fork and rail 6, the point rail 4 and the fork and rail 6 are of a detachable structure through the fork and rail high-strength bolt 5, the point rail 4 and the fork and rail 6 are designed in a split mode, the point rail 4 and the fork and rail 6 are designed in an integrated mode, when the point rail 4 is damaged, the point rail 4 and the fork and rail 6 can be separated, the requirement for replacing parts is met, the whole point rail 4, the fork and rail 6, the frog wing rail 1, the wing rail insert 2, the insert spacer 3 and the fork and rail spacer 7 are machined in a numerical control mode, the sizes of the parts are guaranteed to be consistent, the requirements for replacing the parts are met, and;
the middle of the joint of the frog and frog wing rail 1 and the fork and frog wing rail 6 is embedded with a frog and frog spacer 7, one side of the bottoms of the frog and frog wing rail 1 and the frog and frog wing rail 6 is welded with a steel rail pressing plate 8, the frog and frog wing rail 1, the wing rail insert 2, the insert spacer 3 and the center rail 4 are penetrated with an insert high-strength bolt 9, the frog and frog wing rail spacer 7 is of an I-shaped structure, two sides of the outer wall of the frog and frog wing rail spacer 7 are arc-shaped, the arc surface of the frog and frog spacer 7 is matched with the arc surface of the frog and frog wing rail 1, the frog and rail spacer 7 is used as a bridge between the frog and frog wing rail 1, a U-shaped bridge floor is formed between the I-shaped arc surface of the frog and frog wing rail 1, the running of a train can be effectively met, meanwhile, the connection strength between the frog and frog wing rail 1 can be effectively operated.
The replacement method comprises the following specific steps:
(1) a new bolt which needs to be replaced is prepared in advance and comprises a washer and a nut, and the end of the bolt is marked with a position mark.
(2) The serial numbers of bolts and steel rail washers are marked on the frog wing rail 1 in advance, and the theoretical tip position of the frog is marked through the guard rail stock rail.
(3) The fastener bolt is loosened and the spring strip is removed.
(4) The horizontal bolts of the frog connecting the wing rail to the other rail members are loosened and removed.
(5) And replacing the wing rail insert 2, the frog wing rail 1, the point rail 4 and the fork heel rail 6.
The specific steps for replacing the wing rail insert 2 are as follows:
poking a frog wing rail 1 and a wing rail insert 2 by using a crowbar, and taking out all insert spacer irons 3.
Loosening and taking out the frog wing rail 1 and the insert high-strength bolt 9; tapping the frog wing rail 1 by using an iron hammer, vibrating and loosening the wing rail insert 2, prying the wing rail insert 2 by using a crowbar, sleeving iron wires at two ends of the wing rail insert 2, lifting the wing rail insert 2 out of a circuit, and removing rust and the like in the frog wing rail 1 by using cotton yarns.
Putting a new wing rail insert 2, adjusting the position of the wing rail insert 2 by using a crowbar, and penetrating an insert high-strength bolt 9 connected with the wing rail;
the specific steps for replacing the wing rail are as follows:
poking a frog wing rail 1 and a wing rail insert 2 by using a crowbar, and taking out all insert spacer irons 3.
Loosening and taking out the frog wing rail 1 and the insert high-strength bolt 9; tapping the frog wing rail 1 by using an iron hammer, vibrating and loosening the wing rail insert 2, prying the wing rail insert 2 by using a crowbar, sleeving iron wires at two ends of the wing rail insert 2, lifting the wing rail insert 2 out of a circuit, and removing rust and the like in the frog wing rail 1 by using cotton yarns.
And thirdly, putting a new frog wing rail 1, and adjusting the position of the frog wing rail 1 by using a crowbar.
Putting the existing wing rail insert 2, adjusting the position of the wing rail insert 2 by using a crowbar, and penetrating an insert high-strength bolt 9 connected with the frog wing rail 1.
The rest steps are the same as the replacement of the insert;
the specific steps of replacing the point rail 4 and the fork and heel rail 6 are as follows:
poking a frog wing rail 1 and a wing rail insert 2 by using a crowbar, and taking out all insert spacer irons 3.
And secondly, loosening and taking out the high-strength bolt 5 for connecting the center rail 4 and the fork and heel rails.
Thirdly, the front part of the core rail 4 is bundled by iron wires, the fork and the heel rail 6 are poked by a crowbar, the core rail 4 is moved out of the fork and the heel rail 6, the tail part of the core rail 4 is sleeved with the iron wires, and the core rail 4 is lifted out of the circuit. The fork and heel rail 6 can be moved out of the line by a crowbar or the like. The point rail 4 and the fork and heel rail 6 can be replaced independently.
And fourthly, placing the new point rail 4 and the fork and heel rail 6, and moving the point rail 4 into the fork and heel rail 6.
And fifthly, adjusting the front and back positions and the high and low positions of the point rail 4 and the fork and heel rail 6, and penetrating a fork and heel rail high-strength bolt 5 connected between the point rail 4 and the fork and heel rail 6. And (5) a gasket and a nut are arranged, and the nut is screwed.
(6) And (3) putting the insert spacing iron 3 and the fork track spacing iron 7 back according to the original positions, pulling the frog wing rail 1 and the wing rail insert 2 back to the original positions, and threading the insert high-strength bolt 9 back according to the marked serial number. And adjusting the front and back positions of the insert spacing iron 3 and the fork and rail spacing iron 7, and finally tightening the horizontal bolt by using a torque wrench, wherein the torque is set to be 1200 N.M.
(7) And measuring and adjusting the gauge, installing the fastener back and screwing. And tightening the switch tie bolt.
(8) And (3) polishing the top surfaces of the wing rail insert 2 and the frog wing rail 1 smoothly by using a polisher.
(9) And measuring the height difference value between the new and old parts, and correcting the height difference value to be within a standard range by using an angle grinder. And measuring the profile after polishing by using the profile sample plate to ensure that the profile meets the line requirement.
(10) Tamping the track bed, checking tools, checking the line and finishing the operation.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a can change frog on line, includes frog wing rail (1), wing rail insert (2), insert spacer (3), point rail (4), fork with rail (6) and fork with rail spacer (7), its characterized in that: the middle part inboard of frog wing rail (1) is connected with wing rail insert (2), the inner wall middle part that wing rail insert (2) is inlayed and is had insert spacing iron (3), one side that wing rail insert (2) was kept away from in insert spacing iron (3) is inlayed and is had heart rail (4), the end outer wall of heart rail (4) is inlayed and is had fork with rail (6), and the fork has run through fork with rail high strength bolt (5) with the junction middle part of heart rail (4), the fork is inlayed and is had fork with rail spacing iron (7) with the junction middle part of frog wing rail (1) with rail (6), and the bottom one side welding of frog wing rail (1) and fork with rail (6) has rail clamp plate (8), frog wing rail insert (1), wing rail insert (2), insert spacing iron (3) and the middle part of heart rail (4) run through and insert high strength bolt (9).
2. An on-line replaceable frog according to claim 1 wherein: the sizes of the bulges at the two sides of the insert spacing iron (3) are matched with the sizes of the grooves in the middle parts of the front ends of the wing rail insert (2) and the center rail (4), and the insert spacing iron (3) is symmetrically distributed along the two sides of the center rail (4).
3. An on-line replaceable frog according to claim 1 wherein: the tail end inner wall of the point rail (4) is attached to the front end outer wall of the fork and the rail (6), and the point rail (4) is of a detachable structure through the fork and the rail high-strength bolt (5) and the fork and the rail (6).
4. An on-line replaceable frog according to claim 1 wherein: the fork and rail spacing iron (7) is of an I-shaped structure, two sides of the outer wall of the fork and rail spacing iron (7) are arc-surface-shaped, and the arc surfaces of the fork and rail spacing iron (7) are matched with the fork and rail spacing iron (6) and the frog wing rail (1).
5. An on-line replaceable frog according to claim 1 wherein: the frog wing rail (1) and the wing rail insert (2) form a detachable structure through the insert high-strength bolt (9), and the wing rail insert (2) is tightly attached to the inner wall of the frog wing rail (1).
6. The on-line replaceable frog and the replacing method thereof according to claim 1, wherein: the replacement method comprises the following specific steps:
(1) a new bolt (comprising a washer and a nut) needing to be replaced is prepared in advance, and the end of the bolt is marked.
(2) The serial numbers of bolts and steel rail washers are marked on the frog wing rail (1) in advance, and the theoretical tip position of the frog is marked through the guard rail stock rail.
(3) The fastener bolt is loosened and the spring strip is removed.
(4) The horizontal bolts of the frog connecting the wing rail to the other rail members are loosened and removed.
(5) The wing rail insert (2), the frog wing rail (1), the point rail (4) and the fork heel rail (6) are replaced.
(6) And (3) placing the insert block spacing iron (3) and the fork track spacing iron (7) according to the original positions, pulling the frog wing rail (1) and the wing rail insert block (2) back to the original positions, and threading the insert block high-strength bolt (9) according to the marked serial number. And adjusting the front and back positions of the insert spacing iron (3) and the fork and rail spacing iron (7), and tightening the horizontal bolt by using a torque wrench, wherein the torque is set to be 1200 N.M.
(7) And measuring and adjusting the gauge, installing the fastener back and screwing. And tightening the switch tie bolt.
(8) And (3) polishing the top surfaces of the wing rail insert (2) and the frog wing rail (1) smoothly by using a polisher.
(9) And measuring the height difference value between the new and old parts, and correcting the height difference value to be within a standard range by using an angle grinder. And measuring the profile after polishing by using the profile sample plate to ensure that the profile meets the line requirement.
(10) Tamping the track bed, checking tools, checking the line and finishing the operation.
7. The on-line replaceable frog assembly and its replacing method as claimed in claim 6, wherein: the method comprises the following specific steps of replacing the wing rail insert (2):
poking a frog wing rail (1) and a wing rail insert (2) by using a crowbar, and taking out all insert spacer irons (3).
Secondly, loosening and taking out the frog wing rail (1) and the insert high-strength bolt (9); tapping the frog wing rail (1) by using an iron hammer, vibrating and loosening the wing rail insert (2), prying the wing rail insert (2) by using a crowbar, sleeving iron wires at two ends of the wing rail insert (2), lifting the wing rail insert (2) out of a circuit, and removing rust and the like in the frog wing rail (1) by using cotton yarn.
And thirdly, putting a new wing rail insert (2), adjusting the position of the wing rail insert (2) by using a crowbar, and penetrating an insert high-strength bolt (9) connected with the wing rail.
8. The on-line replaceable frog assembly and its replacing method as claimed in claim 6, wherein: the specific steps of replacing the wing rail are as follows:
poking a frog wing rail (1) and a wing rail insert (2) by using a crowbar, and taking out all insert spacer irons (3).
Secondly, loosening and taking out the frog wing rail (1) and the insert high-strength bolt (9); tapping the frog wing rail (1) by using an iron hammer, vibrating and loosening the wing rail insert (2), prying the wing rail insert (2) by using a crowbar, sleeving iron wires at two ends of the wing rail insert (2), lifting the wing rail insert (2) out of a circuit, and removing rust and the like in the frog wing rail (1) by using cotton yarn.
And putting a new frog wing rail (1), and adjusting the position of the frog wing rail (1) by using a crowbar.
Putting the existing wing rail insert (2), adjusting the position of the wing rail insert (2) by using a crowbar, and penetrating an insert high-strength bolt (9) connected with the frog wing rail (1).
The rest of the steps are the same as insert replacement.
9. The on-line replaceable frog assembly and its replacing method as claimed in claim 6, wherein: the specific steps of replacing the point rail (4) and the fork and heel rail (6) are as follows:
poking a frog wing rail (1) and a wing rail insert (2) by using a crowbar, and taking out all insert spacer irons (3).
And secondly, loosening and taking out the high-strength bolt (5) for connecting the center rail (4) and the fork and heel rails.
Thirdly, the front part of the core rail (4) is tied by iron wires, the fork and the heel rail (6) are poked by a crowbar, the core rail (4) is moved out of the fork and the heel rail (6), the tail part of the core rail (4) is sleeved with the iron wires, and the core rail (4) is lifted out of the circuit. The fork and heel rail (6) can be moved out of the line by a crowbar and the like. The point rail (4) and the fork and heel rail (6) can be replaced independently.
Putting the new point rail (4) and the fork and heel rail (6), and moving the point rail (4) into the fork and heel rail (6).
Adjusting the front and back positions and the high and low positions of the center rail (4) and the fork and heel rail (6), and penetrating a fork and heel rail high-strength bolt (5) connected between the center rail (4) and the fork and heel rail (6). And (5) a gasket and a nut are arranged, and the nut is screwed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418896.5A CN113123181A (en) | 2021-04-19 | 2021-04-19 | Frog capable of being replaced on line and replacing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418896.5A CN113123181A (en) | 2021-04-19 | 2021-04-19 | Frog capable of being replaced on line and replacing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113123181A true CN113123181A (en) | 2021-07-16 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110418896.5A Pending CN113123181A (en) | 2021-04-19 | 2021-04-19 | Frog capable of being replaced on line and replacing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550177A (en) * | 2021-07-19 | 2021-10-26 | 浙江德盛铁路器材股份有限公司 | Modularized combined frog easy to replace assembly and construction method thereof |
| CN114717886A (en) * | 2022-03-18 | 2022-07-08 | 中国国家铁路集团有限公司 | Wing rail embedded type alloy steel combined frog and method for replacing quick-wear parts on line |
-
2021
- 2021-04-19 CN CN202110418896.5A patent/CN113123181A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550177A (en) * | 2021-07-19 | 2021-10-26 | 浙江德盛铁路器材股份有限公司 | Modularized combined frog easy to replace assembly and construction method thereof |
| CN114717886A (en) * | 2022-03-18 | 2022-07-08 | 中国国家铁路集团有限公司 | Wing rail embedded type alloy steel combined frog and method for replacing quick-wear parts on line |
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