CN113070619A - Long steel rail welding platform device for subway operation line base and using method - Google Patents
Long steel rail welding platform device for subway operation line base and using method Download PDFInfo
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- CN113070619A CN113070619A CN202110549184.7A CN202110549184A CN113070619A CN 113070619 A CN113070619 A CN 113070619A CN 202110549184 A CN202110549184 A CN 202110549184A CN 113070619 A CN113070619 A CN 113070619A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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Abstract
The invention relates to the technical field of rail engineering, in particular to a long steel rail welding platform device of a subway operation line base and a using method, wherein the long steel rail welding platform device comprises the following steps: the welding working area is provided with a transfer structure for transferring steel rails; a plurality of roller structures that set up are extended to the parallel direction of existing line circuit by the weldment work district, roller structure puts including the support frame with set up the roller subassembly on the support frame, the support frame is used for supporting the roller subassembly to the same height of existing line circuit. Compared with the prior art, the invention has simple and feasible combination structure, easy installation and disassembly and the advantages that: the normal operation that can maintain subway line does not influence passenger's trip, guarantees subway operation safety, utilizes original subway operation line vehicle base to construct a long rail welded platform, welds 25m rail into 100m long rail, transports to the underground line and changes the subway, has improved change speed greatly.
Description
Technical Field
The invention relates to the technical field of rail engineering, in particular to a long steel rail welding platform device for a subway operation line base and a using method.
Background
With the expansion of the scale of the construction of domestic subways, the problems of old equipment, rail abrasion, rail material aging, track bed cracking and the like gradually occur in the constructed subway operating line, and the line maintenance becomes a new industry. Because the subway has long operation time, the fatigue period of the steel rail reaches the service life, the high smoothness of the rail is poor due to the abrasion of the working edge of the steel rail, the serious brake noise of the rail such as settlement and rust in and out of the station is harsh, the comfort and safety of passengers during riding are affected, and the replacement is urgently needed.
At present, a 25m steel rail is generally adopted for replacing a steel rail of a domestic subway operation line, the 25m steel rail is transported to a section of an underground line where replacement is needed, the 25m steel rail is welded into a long steel rail and then replaced, the replacement construction period is long by adopting the 25m steel rail, procedures such as steel rail transportation, welding and replacement are all completed in a skylight operation point after the subway is stopped, the potential safety hazard is high, the protection supervision investment is large, and the train operation time on the second day is influenced if one procedure lags.
Disclosure of Invention
The invention aims to solve the defects of the prior art, and provides a long steel rail welding platform device of a subway operation line base and a using method thereof, which are used for realizing the welding and replacement of long steel rails by utilizing the existing subway vehicle base line.
In order to realize above-mentioned purpose, design a subway operation line base long rail welded platform device, include: the welding working area is provided with a transfer structure for transferring steel rails; a plurality of roller structures that set up are extended to the parallel direction of existing line circuit by the weldment work district, roller structure puts including the support frame with set up the roller subassembly on the support frame, the support frame is used for supporting the roller subassembly to the same height of existing line circuit.
The invention also has the following preferable technical scheme:
the support frame is a splayed support frame.
The splayed support frame comprises a first support piece and a second support piece which are arranged in a bilateral symmetry mode, the width between the tops of the first support piece and the second support piece is smaller than the width between the bottoms of the first support piece and the second support piece, and a transverse reinforcing piece is further arranged between the first support piece and the second support piece.
The width between the top parts of the first support part and the second support part is 0.8m, the width between the bottom parts of the first support part and the second support part is 1.5m, and a transverse pull rod is arranged between the first support part and the second support part at a position 0.2m away from the ground.
The bottom of first support piece and second support piece is equipped with the support base respectively, be equipped with the preformed hole on the support base for be connected with ground through expansion bolts.
The welding platform device further comprises a transverse platform which is formed by extending the welding working area to the parallel direction of the existing line, the transverse platform comprises transverse supporting pieces which are arranged at intervals, and each transverse supporting piece is supported to the same height of the existing line through a vertical supporting piece.
The bottom of the vertical supporting piece is provided with a supporting base, and the supporting base is provided with a preformed hole for being connected with the ground through an expansion bolt.
And a steel rail storage area is also arranged on one side of the welding working area.
The roller subassembly including rotate connect the first roller on the support frame, and with the coaxial second roller that sets up of first roller, the radius of second roller is greater than the radius of first roller.
The invention also relates to a using method of the subway operating line base long steel rail welding platform device, which comprises the following steps: and welding the steel rails section by section in a welding working area, longitudinally sliding the steel rails through the roller shaft structure after welding one section of the steel rail, welding the other section of the steel rail, and sliding the steel rails to a storage site through the roller shaft structure after welding.
Advantageous effects of the invention
Compared with the prior art, the invention has simple and feasible combination structure, easy installation and disassembly and the advantages that: can maintain subway line's normal operation, do not influence passenger's trip, guarantee subway operation safety, utilize long rail welded platform of original subway operation line vehicle base construction, weld into 100m long rail 25m rail, transport to the underground line and change the subway, improved change speed greatly, mainly have following advantage:
(1) the long steel rail welding platform is arranged by fully utilizing the terrain of the existing base, so that the damage to circuits and facilities in the existing base is reduced, and the land is saved.
(2) The 25m steel rail is welded into the 100m long steel rail through the long steel rail welding platform of the base, so that the influence on subway operation is reduced, the construction efficiency of steel rail replacement is improved, and the construction cost of steel rail replacement is greatly saved.
(3) After the construction of the long steel rail welding platform of the base is completed, the long steel rail welding platform can be used on other lines and recycled, and construction cost is saved.
Drawings
FIG. 1 illustrates a cross-sectional view of a rail welding platform.
Fig. 2 shows an exemplary cross-section of the roller shaft structure fixed to the ground.
Fig. 3 shows a sectional view of an exemplary roller structure.
Fig. 4 shows a plan view of an exemplary roller structure.
Fig. 5 shows an exemplary basic long steel rail welding plan view.
As shown, in the figure: 1. and a long steel rail 2.
A roll shaft 3.
Roll shaft 4, I-steel 5, existing line roadbed 6, hardened ground 7, expansion bolt 8, roll shaft structure 9, existing line 10, gantry crane 11, steel rail storage area 12 and welding work area
Detailed Description
The structure and principles of such apparatus and method will be apparent to those skilled in the art from the following further description of the invention, taken in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
This embodiment provides a subway operation line base long rail welded platform device, includes: the welding working area is provided with a transfer structure for transferring steel rails; a plurality of roller structures that set up are extended to the parallel direction of existing line circuit by the weldment work district, roller structure puts including the support frame with set up the roller subassembly on the support frame, the support frame is used for supporting the roller subassembly to the same height of existing line circuit.
The use method of the subway operation line base ground long steel rail welding platform device comprises the following steps: and welding the steel rails section by section in a welding working area, longitudinally sliding the steel rails through the roller shaft structure after welding one section of the steel rail, welding the other section of the steel rail, and sliding the steel rails to a storage site through the roller shaft structure after welding.
The subway operating line base long steel rail welding platform device is further exemplified by the following figures.
Referring to fig. 1, the main components of the subway operation line basic long steel rail welding platform device and the existing structure and terrain on which the construction is based include: a roller shaft component,
A roll shaft,
The steel rail welding machine comprises a roll shaft, I-shaped steel, an existing line roadbed, a hardened ground, expansion bolts, a roll shaft device, an existing line, a gantry crane, a steel rail storage area and a welding work area.
Referring to fig. 2, 3 and 4, the roller assembly comprises a first roller shaft rotatably connected to the support frame, and a second roller shaft coaxially arranged with the first roller shaft, wherein the radius of the second roller shaft is larger than that of the first roller shaft. For example, the second roller shaft is composed of
A roll shaft, the first roll shaft is
And the roller shaft component is connected to the splayed support frame processed by the I-shaped steel, the net width of the roller way is 0.6m, and the size length and the width of the base are 0.8m and 0.3m respectively.
The splayed support frame comprises a first support piece and a second support piece which are arranged in a bilateral symmetry mode, the width between the top of the first support piece and the top of the second support piece is smaller than the width between the bottoms of the first support piece and the second support piece, a transverse reinforcing piece is further arranged between the first support piece and the second support piece, the bottoms of the first support piece and the second support piece are respectively provided with a support base, and a reserved hole is formed in the support base and is used for being connected with the ground through an expansion bolt. For example, as shown in fig. 2, the splayed support frame is processed by i-beams, the width of the upper part of the splayed support frame is 0.8m, the width of two i-beams at the bottom of the splayed support frame is 1.5m, a transverse pull rod is arranged at the position of 0.2m of the ground, the height of the splayed support frame of the roll shaft is 0.85m, and a support leg at one side of the splayed support frame is welded with the.
The welding platform device further comprises a transverse platform which is formed by extending the welding working area to the parallel direction of the existing line, the transverse platform comprises transverse supporting pieces which are arranged at intervals, and each transverse supporting piece is supported to the same height of the existing line through a vertical supporting piece. For example, referring to fig. 5, the basic long rail welding platform has a length of 120m and a width of 6m, and transverse i-beams 20# a having a length of 5m are arranged every 5m, and each transverse i-beam is welded with 3 vertical i-beams to be supported to the same height of an existing line. The bottom of the vertical I-shaped steel is welded with a steel plate serving as a supporting base, expansion bolt holes are reserved in four corners of the steel plate, and the vertical I-shaped steel base is firmly fixed with an existing hardened pavement by the expansion bolts.
In this embodiment, the height of the horizontal platform and the supporting frame is similar to the height of the steel rail of the existing line, and the height difference between the existing line and the hardened ground is measured due to the height difference between the existing line and the hardened ground, and the horizontal platform and the supporting frame are fixed on the hardened ground by using i-steel and are the same as the height of the steel rail of the existing line. Thereby, the operation of welding and transporting to the rail is convenient.
Example 1
In this embodiment, the existing subway vehicle base line and the current situation are utilized, a long steel rail storage platform which meets the requirement that a 25m steel rail is welded into a 100m steel rail is planned and constructed, the long steel rail storage platform comprises a welding operation area and a steel rail storage area, the 25m steel rail is welded into the 100m long steel rail in the welding operation area, then the long steel rail storage area is longitudinally slid to wait for transportation through a roller shaft structure, the 100m long steel rail is transported to a underground line replacement section through a subway outage time window, and the long steel rail is welded into a replacement length for replacement in a selection time window.
Specifically, as shown in fig. 5, 25m steel rails are hoisted into a rail welding work area by a gantry crane with a 10m span at the base, 2 25m long steel rails are welded by a rail welding machine, and then the steel rails are longitudinally slid by a roller shaft structure and then welded for 25m until the length of the welded long steel rail is 100 m.
Referring to fig. 1 and 5, the long steel rail welding platform slides the welded long steel rail to a storage site through a roll shaft structure.
When the long steel rail transport vehicle is used subsequently, the long steel rail is hoisted to the transport train flat car by adopting the L-shaped cantilever crane carried by the long steel rail transport train flat car, and the welded long steel rail is transported to a section needing to be replaced by the long steel rail transport train by utilizing the subway outage time window for construction.
Claims (10)
1. The utility model provides a long rail welded platform device of subway operation line base which characterized in that includes:
the welding working area is provided with a transfer structure for transferring steel rails;
a plurality of roller structures that set up are extended to the parallel direction of existing line circuit by the weldment work district, roller structure puts including the support frame with set up the roller subassembly on the support frame, the support frame is used for supporting the roller subassembly to the same height of existing line circuit.
2. The metro operating line base long rail welding platform device according to claim 1, wherein said support frame is a splayed support frame.
3. The subway operation line foundation long steel rail welding platform device as claimed in claim 2, wherein said splayed supporting frame comprises a first supporting member and a second supporting member which are arranged in bilateral symmetry, the width between the top of the first supporting member and the top of the second supporting member is smaller than the width between the bottom of the first supporting member and the bottom of the second supporting member, and a transverse reinforcement member is further arranged between the first supporting member and the second supporting member.
4. The metro operating line base long rail welding platform device according to claim 3, wherein the width between the top of the first support and the top of the second support is 0.8m, the width between the bottom of the first support and the bottom of the second support is 1.5m, and a cross tie is provided between the first support and the second support at a distance of 0.2m from the ground.
5. The subway line base long rail welding platform device as claimed in claim 3, wherein said first supporting member and said second supporting member are respectively provided with a supporting base at the bottom, said supporting base being provided with a reserved hole for connecting with the ground through an expansion bolt.
6. The welding platform device for long steel rails of subway operation line bases as claimed in claim 1, wherein said welding platform device further comprises a horizontal platform extended from the welding work area to the parallel direction of the existing line, said horizontal platform comprises horizontal supporting members spaced apart, each of said horizontal supporting members is supported to the same height of the existing line by a vertical supporting member, respectively.
7. The subway line base long steel rail welding platform device as claimed in claim 6, wherein said vertical supporting member has a supporting base at the bottom, said supporting base has a reserved hole for connecting with the ground through an expansion bolt.
8. The long rail welding platform device for subway operation line base as claimed in claim 1, wherein said welding operation area is further provided with a rail storage area at one side thereof.
9. The metro operating line base long rail welding platform assembly of claim 1, wherein the roller assembly comprises a first roller rotatably connected to the support frame, and a second roller coaxially disposed with the first roller, the second roller having a radius larger than that of the first roller.
10. The use method of the subway operating line base long steel rail welding platform device according to claim 1 is characterized by comprising the following steps:
and welding the steel rails section by section in a welding working area, longitudinally sliding the steel rails through the roller shaft structure after welding one section of the steel rail, welding the other section of the steel rail, and sliding the steel rails to a storage site through the roller shaft structure after welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110549184.7A CN113070619A (en) | 2021-05-20 | 2021-05-20 | Long steel rail welding platform device for subway operation line base and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110549184.7A CN113070619A (en) | 2021-05-20 | 2021-05-20 | Long steel rail welding platform device for subway operation line base and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113070619A true CN113070619A (en) | 2021-07-06 |
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ID=76616801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110549184.7A Pending CN113070619A (en) | 2021-05-20 | 2021-05-20 | Long steel rail welding platform device for subway operation line base and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113070619A (en) |
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2021
- 2021-05-20 CN CN202110549184.7A patent/CN113070619A/en active Pending
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