Flat car for steel rail welding operation

Abstract

The utility model discloses a flat car for steel rail welding operation, and belongs to the technical field of rail installation operation. Comprising a flat car and a flash welding machine, and the flash welding machine comprises two container modules; a hydraulic pump station, four hydraulic supporting legs with two-way hydraulic locks, four hydraulic control valves and eight anti-falling chains are arranged on the flat car; the hydraulic pump station is located in the middle of the flat car and located between the two container modules. The four hydraulic supporting legs are located at the four corners of the flat car respectively, located on the outer sides of the rail wheels and connected with the hydraulic pump station through pipelines with hydraulic control valves respectively. Each hydraulic supporting leg is correspondingly provided with two anti-disengaging chains, and the two anti-disengaging chains are located on the two sides of the hydraulic supporting leg respectively. The lower end of the anti-falling chain is detachably connected with the supporting part; when the flat car moves, the hydraulic supporting legs retract, and the supporting parts of the hydraulic supporting legs are located above the steel rails. During welding and leveling, part or all of the hydraulic supporting legs extend, the anti-falling chains on the hydraulic supporting legs are separated from the supporting parts, and the supporting parts abut against the ground.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail installation operations, and particularly relates to a flatbed vehicle for rail welding operations, and more particularly to a flatbed vehicle with a mobile flash welder. Background Art

[0002] With the rapid development of high-speed railways, heavy-load railways and urban rail transit, the increased speed and axle load have put forward higher requirements for track rails, prompting the rails to develop in the direction of high smoothness, high welding performance, toughness and heavy load. Seamless track has become the best choice for high-speed and heavy-load track structure because of its high reliability and high stability. Seamless track can be welded by flash welding machine.

[0003] Generally, flash welding on site is performed with a mobile flash welding machine, which is usually divided into two modules, each located in two containers, and loaded on a self-propelled rail vehicle. During operation, the welding machine head extends out of the vehicle body to weld the rails that have been placed on the side of the track or in the rail bearing groove.

[0004] For example, the patent with application number CN201720712074.7 discloses a rail flatbed fixed flash welding machine device, including a flatbed and a flash welder. There are two flash welders, which are symmetrically arranged in the middle of the flatbed.

[0005] When the applicant used a flatbed truck with a mobile flash welder for welding operations, it was found that: when the flatbed truck was on a turning section, there was a height difference between the inner and outer rails; or when it was on a slope, the heights of the two ends of the flatbed truck were inconsistent; and the flatbed truck did not have a leveling function. The angle of the flash welder placed on the flatbed truck changed with the track conditions, which not only affected the welding effect, but also affected the construction efficiency (unlevelness makes it difficult to operate). Utility Model Content

[0006] In order to solve the above problems, the embodiment of the utility model provides a rail welding operation flatbed truck, which can adjust the lifting height of the hydraulic legs at the inner rail at the track bend to quickly level the flatbed truck surface. At the same time, the lifting height of the hydraulic legs at the lower part can also be adjusted at the ramp to quickly level the flatbed truck surface. That is, during operation, the flatbed truck surface can be easily leveled, and then the flash welder can be leveled, which not only ensures the welding effect, but also ensures the construction efficiency. The technical solution is as follows:

[0007] The utility model provides a rail welding operation flatbed, including a flatbed 1 and a flash welder thereon, wherein the flash welder includes two container modules, which are respectively located at the front and rear of the flatbed 1; the flatbed 1 is provided with a hydraulic pump station 2, four hydraulic legs 3 with a two-way hydraulic lock 10, four hydraulic control valves 4 respectively used to control the four hydraulic legs 3, and eight anti-slip chains 5; the hydraulic pump station 2 is located in the middle of the upper side of the flatbed 1 and between the two container modules; the four hydraulic legs 3 are respectively located at the four corners of the lower side of the flatbed 1, which are located on the outer sides of the rail wheels 6 on the corresponding sides, It is connected to the hydraulic pump station 2 through pipelines with hydraulic control valves 4, and is arranged vertically downward; each hydraulic support leg 3 is correspondingly provided with two anti-slip chains 5, and the two anti-slip chains 5 are respectively located on both sides of the hydraulic support leg 3; the anti-slip chain 5 is arranged vertically, and its upper end is fixed to the lower side of the flatbed car 1, and its lower end is detachably connected to the upper side of the support part 32 of the hydraulic support leg 3; when the flatbed car 1 moves, the hydraulic support leg 3 contracts and its support part 32 is located above the rail; during welding leveling, part or all of the hydraulic support legs 3 are extended, and the anti-slip chains 5 on the extended hydraulic support legs 3 are separated from the support part 32, and the support part 32 is pressed against the ground.

[0008] Among them, the hydraulic support leg 3 in the embodiment of the utility model includes a vertically arranged hydraulic cylinder 31 and a support part 32 at the lower end of the telescopic rod of the hydraulic cylinder 31; the upper part of the hydraulic cylinder 31 is fixed to the lower side of the flatbed truck 1, which is located on the outer side of the track wheel 6 on the corresponding side, and is provided with a two-way hydraulic lock 10, which is connected to the hydraulic pump station 2 through a pipeline with a hydraulic control valve 4; the support part 32 is horizontally arranged, and it is a circular plate coaxially arranged with the hydraulic cylinder 31.

[0009] Specifically, the two anti-slip chains 5 in the embodiment of the utility model are respectively located in front of and behind the hydraulic support leg 3 , and the lower ends of the anti-slip chains 5 are hooked on the lifting ring 9 on the upper side of the support part 32 through the hook 8 .

[0010] Specifically, the four hydraulic control valves 4 in the embodiment of the utility model are respectively located above the corresponding hydraulic legs 3; the two hydraulic control valves 4 corresponding to the two front hydraulic legs 3 are arranged adjacent to each other on the left and right, and are located at the upper front end of the flatbed truck 1, and are located in front of the front container module; the two hydraulic control valves 4 corresponding to the two rear hydraulic legs 3 are arranged adjacent to each other on the left and right, and are located at the upper rear end of the flatbed truck 1, and are located behind the rear container module.

[0011] Among them, the hydraulic pump station 2 in the embodiment of the utility model is divided into two outputs, each of which is provided with a one-way valve 7. One way is connected to the two front hydraulic legs 3 through two parallel branch pipes, and the other way is connected to the two rear hydraulic legs 3 through two parallel branch pipes. A hydraulic control valve 4 is provided on each branch pipe.

[0012] Specifically, the length of the flatbed truck 1 in the embodiment of the utility model is 12.5m, and its width is 2.5m; the distance between the two hydraulic legs 3 at the front or rear is 2.1m, and the distance between the two hydraulic legs 3 on the left or right is 12.0m; the distance between the support part 32 and the rail is 0.24m.

[0013] The technical solution provided by the embodiment of the utility model has the following beneficial effects: the embodiment of the utility model provides a rail welding operation flatbed vehicle, which can adjust the lifting height of the hydraulic legs at the inner rail at the track turning point to quickly level the flatbed vehicle surface. At the same time, the lifting height of the hydraulic legs at the lower position can also be adjusted at the ramp to quickly level the flatbed vehicle surface. That is, during operation, the flatbed vehicle surface can be easily leveled, and then the flash welder can be leveled, which not only ensures the welding effect, but also ensures the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a rail welding operation flatbed vehicle provided by an embodiment of the utility model;

[0015] Figure 2 This is the front view of the flatbed car for rail welding operations;

[0016] Figure 3 yes Figure 1 A partial enlarged view of

[0017] Figure 4 It is a schematic diagram of the combination of a hydraulic pump station and hydraulic outriggers.

[0018] In the figure: 1 flatbed car, 2 hydraulic pump station, 3 hydraulic outrigger, 4 hydraulic control valve, 5 anti-drop chain, 6 track wheel, 7 one-way valve, 8 hook, 9 support part, 10 two-way hydraulic lock;

[0019] 31 is a hydraulic cylinder, and 32 is a supporting part. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Example 1

[0022] See also Figure 1-4Embodiment 1 provides a rail welding operation flatbed, including a flatbed 1 and a flash welder thereon. The flatbed 1 is consistent with the prior art. The flash welder includes two container modules, and the two container modules are respectively located at the front and rear of the flatbed 1. The flatbed 1 is provided with a hydraulic pump station 2, four hydraulic legs 3, four hydraulic control valves 4 and eight anti-slip chains 5. The hydraulic pump station 2 is located in the middle of the upper side of the flatbed 1 and is located between the two container modules. The four hydraulic legs 3 are respectively located at the four corners of the lower side of the flatbed 1, and are each provided with a two-way hydraulic lock 10 to ensure that the hydraulic cylinder remains stably at a certain height for a long time. They are located on the outer side of the rail wheel 6 on the corresponding side, and are respectively connected to the hydraulic pump station 2 through pipelines with hydraulic control valves 4. They are arranged vertically downward, and include a vertically arranged hydraulic cylinder 31 and a support portion 32 at the lower end of the telescopic rod of the hydraulic cylinder 31. Two anti-slip chains 5 are provided for each hydraulic leg 3 to prevent the risk of the support part 32 colliding with the sleeper due to the hydraulic cylinder 31 sliding out due to vibration when the flatbed 1 is running at high speed. The two anti-slip chains 5 are respectively located on both sides of the hydraulic leg 3 (the front and rear sides or the left and right sides, specifically the front and rear sides). The anti-slip chain 5 is arranged vertically, with its upper end fixed to the lower side of the flatbed 1, and its lower end is detachably connected to the upper side of the support part 32 of the hydraulic leg 3. Four hydraulic control valves 4 are respectively used to control the four hydraulic legs 3. The four hydraulic control valves 4 are respectively located above the corresponding hydraulic legs 3. The two hydraulic control valves 4 corresponding to the two hydraulic legs 3 in the front are arranged adjacent to each other on the left and right (so as to control the two hydraulic control valves 4 at the same time), which are located at the upper front end of the flatbed 1, and are located in front of the container module in the front. The two hydraulic control valves 4 corresponding to the two hydraulic legs 3 in the rear are arranged adjacent to each other on the left and right (so as to control the two hydraulic control valves 4 at the same time), which are located at the upper rear end of the flatbed 1, and are located behind the container module in the rear. Specifically, the operating rods of two adjacent hydraulic control valves 4 are arranged adjacent to each other on the left and right to form a valve group, and the two operating rods can be controlled separately or pushed simultaneously.

[0023] When the flatbed car 1 moves, the hydraulic legs 3 are retracted and their supporting parts 32 are located above the rails. When welding and leveling, part (one to three) or all of the hydraulic legs 3 are extended, and the anti-slip chains 5 on the extended hydraulic legs 3 are separated from the supporting parts 32, and the supporting parts 32 are pressed against the ground, and the corresponding rail wheels 6 are suspended as needed.

[0024] Among them, the upper part of the hydraulic cylinder 31 is fixed (through the corresponding fixing bracket) on the lower side of the flatbed car 1, which is located on the outer side of the track wheel 6 on the corresponding side, and is provided with a two-way hydraulic lock 10 (the combination of the two-way hydraulic lock 10 and the hydraulic cylinder 31 is an existing structure), which is connected to the hydraulic pump station 2 through a pipeline with a hydraulic control valve 4, and is located in front of or behind the corresponding bogie. The support part 32 is horizontally arranged, which is a circular plate coaxially arranged with the hydraulic cylinder 31. The lower end of the anti-slip chain 5 is hooked on the lifting ring 9 on the upper side of the support part 32 through the hook 8.

[0025] Among them, see Figure 4 The hydraulic pump station 2 in the embodiment of the utility model is divided into two outputs, each of which is provided with a one-way valve 7. One of the two outputs is connected to the two hydraulic legs 3 (specifically, hydraulic cylinders 31) in the front through two parallel branch pipelines, and the other is connected to the two hydraulic legs 3 (specifically, hydraulic cylinders 31) in the rear through two parallel branch pipelines. A hydraulic control valve 4 is provided on each branch pipeline. Among them, the specification of the hydraulic cylinder 31 is Φ140-200, the rated pressure of the hydraulic pump station is 16Mpa, and the flow rate is 15L / min. In this patent, the hydraulic control system adopts a parallel structure, which can simultaneously control the two hydraulic cylinders 31 at one end (pushing the operating rods of the two adjacent hydraulic control valves 4 at the same time) to rise or fall at the same time, and can also simultaneously control the four hydraulic cylinders 31 at both ends (two people respectively control the operating rods of the two adjacent hydraulic control valves 4 at both ends) to rise or fall synchronously. It is also possible to control the four oil cylinders to rise or fall separately.

[0026] Example 2

[0027] Embodiment 2 provides a rail welding operation flatbed, which has the same structure as that of embodiment 1. The length of the flatbed 1 in this embodiment is 12.5m and its width is 2.5m. The distance between the two hydraulic legs 3 at the front or rear is 2.1m, and the distance between the two hydraulic legs 3 at the left or right is 12.0m. The distance between the support part 32 and the rail is 0.24m, and its diameter is 0.35m. The telescopic stroke of the hydraulic cylinder 31 is preferably greater than 0.4m. Specifically, this patent can adopt the following two types of flatbeds 1, and the parameters of the flatbeds 1 are shown in Table 1 and Table 2 respectively:

[0028] Table 1

[0029]

[0030] Table 2

[0031] .

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flatbed vehicle for rail welding, comprising a flatbed vehicle (1) and a flash welder thereon, wherein the flash welder comprises two container modules, the two container modules are respectively located at the front and rear of the flatbed vehicle (1); characterized in that: The flatbed truck (1) is provided with a hydraulic pump station (2), four hydraulic legs (3) with bidirectional hydraulic locks (10), four hydraulic control valves (4) respectively used to control the four hydraulic legs (3), and eight anti-slip chains (5); the hydraulic pump station (2) is located in the middle of the upper side of the flatbed truck (1) and between the two container modules; the four hydraulic legs (3) are respectively located at the four corners of the lower side of the flatbed truck (1), and are located on the outer sides of the rail wheels (6) on the corresponding sides, and are respectively connected to the hydraulic pump station (2) through pipelines with hydraulic control valves (4), and are arranged vertically downward; each hydraulic leg (3) ) are provided with two anti-slip chains (5) corresponding to the hydraulic support legs (3), and the two anti-slip chains (5) are respectively located on both sides of the hydraulic support legs (3); the anti-slip chains (5) are arranged vertically, and their upper ends are fixed to the lower side of the flatbed truck (1), and their lower ends are detachably connected to the upper side of the support portion (32) of the hydraulic support legs (3); when the flatbed truck (1) moves, the hydraulic support legs (3) are contracted and their support portions (32) are located above the rails; when welding and leveling, part or all of the hydraulic support legs (3) are extended, and the anti-slip chains (5) on the extended hydraulic support legs (3) are separated from the support portions (32), and the support portions (32) are pressed against the ground.

2. The rail welding operation flatbed vehicle according to claim 1, characterized in that: The hydraulic support leg (3) comprises a vertically arranged hydraulic cylinder (31) and a support portion (32) at the lower end of the telescopic rod of the hydraulic cylinder (31); the upper portion of the hydraulic cylinder (31) is fixed to the lower side of the flatbed vehicle (1), and is located on the outer side of the rail wheel (6) on the corresponding side, and is provided with a bidirectional hydraulic lock (10), which is connected to the hydraulic pump station (2) via a pipeline with a hydraulic control valve (4); the support portion (32) is arranged horizontally, and is a circular plate arranged coaxially with the hydraulic cylinder (31).

3. The rail welding operation flatbed vehicle according to claim 1, characterized in that: The two anti-slip chains (5) are respectively located in front of and behind the hydraulic support legs (3), and the lower ends of the anti-slip chains (5) are hooked on the lifting ring (9) on the upper side of the support part (32) through the hook (8).

4. The rail welding operation flatbed vehicle according to claim 1, characterized in that: The four hydraulic control valves (4) are respectively located above the corresponding hydraulic legs (3); the two hydraulic control valves (4) corresponding to the two front hydraulic legs (3) are arranged adjacent to each other on the left and right, and are located at the upper front end of the flatbed truck (1), and are located in front of the front container module; the two hydraulic control valves (4) corresponding to the two rear hydraulic legs (3) are arranged adjacent to each other on the left and right, and are located at the upper rear end of the flatbed truck (1), and are located behind the rear container module.

5. The rail welding operation flatbed vehicle according to claim 1, characterized in that: The hydraulic pump station (2) is divided into two output paths, each path is provided with a one-way valve (7), one path is respectively connected to the two front hydraulic legs (3) through two parallel branch pipelines, and the other path is respectively connected to the two rear hydraulic legs (3) through two parallel branch pipelines, and each branch pipeline is provided with a hydraulic control valve (4).

6. The rail welding operation flatbed vehicle according to claim 1, characterized in that: The flatbed car (1) has a length of 12.5 m and a width of 2.5 m; the distance between the two hydraulic legs (3) at the front or rear is 2.1 m, and the distance between the two hydraulic legs (3) at the left or right is 12.0 m; and the distance between the support part (32) and the rail is 0.24 m.

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