Welding operation vehicle

By designing a welding work vehicle with a mobile body, a welding work compartment and an independent power supply system, the problems of traditional welding machines being bulky, noisy and having safety hazards during outdoor construction are solved, and safe and efficient welding in extreme weather conditions is achieved.

CN223355327UActive Publication Date: 2025-09-19CRCC HIGH TECH EQUIP CORP LTD
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Patent Information

Application Number
CN202422935273.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2025-09-19
Estimated Expiration
2034-11-29

AI Technical Summary

Technical Problem

Traditional welding machines are bulky, noisy, pose a risk of fire and electric shock, and cannot operate normally in extreme weather conditions when used in outdoor construction, making them unable to meet outdoor welding needs.

Method used

A welding vehicle has been designed, which has a mobile body, a welding work compartment, a lifting device that can move horizontally and longitudinally, and an independent power supply system. It can realize dual-travel on roads and railways, and is equipped with an electrical control system and a fire-fighting system, which can weld safely and efficiently in different environments.

Benefits of technology

It enables the welding vehicle to move safely and quickly and weld efficiently in different outdoor environments, avoids the noise pollution and safety hazards of traditional welding machines, and adapts to extreme weather conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a welding operation vehicle. The welding operation vehicle comprises a vehicle body capable of moving; the welding operation carriage is fixed on the vehicle body; a welding operation system and a lifting device capable of transversely and longitudinally moving are arranged in the welding operation carriage; and the power supply system is connected with the welding operation system and supplies power to the welding operation system. According to the welding operation vehicle, the vehicle body can move, so that the vehicle body can drive the welding operation system to move. And when the robot moves to the position needing welding, the power supply system supplies power to the welding operation system, and the welding operation system can conduct welding. Therefore, the welding operation vehicle provided by the embodiment of the utility model can be conveniently moved, and can also be moved to a position needing to be welded for welding. The technical problem that a traditional welding machine cannot meet the outdoor welding requirement is solved.
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Description

Technical Field

[0001] The present application relates to the technical field of railway line maintenance and repair, and in particular to a welding operation vehicle. Background Art

[0002] Electric welding is a welding method that uses electrical energy to achieve atomic bonding between the welded parts through the application of heat, pressure, or both, with or without filler material. As mentioned above, the most important aspect of electric welding is the availability of an electrical energy source. Currently, common indoor welding operations generally require a fixed power source.

[0003] When working outdoors, generators can be used to temporarily power welding machines, or temporary power sources can be pulled to supply power to construction sites. However, generators are bulky and difficult to carry, produce loud noises during operation, and produce exhaust that pollutes the environment. Furthermore, temporary power sources, since they are not sourced from the regular power grid and lack basic protective measures, can easily lead to fires, electric shocks, and other dangerous accidents.

[0004] At the same time, outdoor construction also needs to consider extreme weather conditions. Extreme weather such as heavy rain and strong winds cannot meet the welding conditions. Therefore, when welding outdoors, if there is an operating space that can be sheltered from wind and rain, the inconvenience caused by bad weather conditions can be solved.

[0005] Therefore, traditional welding machines cannot meet the needs of outdoor welding, which is a technical problem that technical personnel in this field urgently need to solve.

[0006] The above information disclosed in the Background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art known to a person of ordinary skill in the art. Utility Model Content

[0007] The embodiment of the present application provides a welding vehicle with a new structure.

[0008] The embodiment of the present application provides a welding vehicle, comprising:

[0009] A movable vehicle body;

[0010] A welding carriage is fixed to the vehicle body; the interior of the welding carriage contains a welding operation system and a lifting device that can move laterally and longitudinally;

[0011] A power supply system is connected to the welding operation system to supply power to the welding operation system.

[0012] The embodiments of the present application adopt the above technical solutions, which have the following technical effects:

[0013] The welding vehicle of the present embodiment is movable, thereby driving the welding system. When moved to a desired welding location, the power supply system supplies power to the welding system, allowing welding to proceed. Thus, the welding vehicle of the present embodiment is easily movable and can be moved to a desired location for welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 A schematic diagram of a welding vehicle according to an embodiment of the present application;

[0016] Figure 2 for Figure 1 Schematic diagram of the power supply system and welding compartment of the welding vehicle shown;

[0017] Figure 3 for Figure 2 A side view of the lifting device of the welding work vehicle is shown;

[0018] Figure 4 for Figure 2 Schematic diagram of the lifting device of the welding work vehicle shown.

[0019] Reference numerals:

[0020] Locomotive head 1, driver's cab 11, road running mechanism 12,

[0021] Railway running gear 13, longitudinal telescopic device 131, bogie 132, chassis 14, coupler 15,

[0022] Power supply 21, power distribution cabinet 22, electrical control cabinet 23,

[0023] Lifting device 31, longitudinal rack 314-1, longitudinal gear 313-1, longitudinal movable mounting frame 318-1, longitudinal guide rail 311-1,

[0024] Transverse guide rail 311-2, transverse pulley 312-2, transverse movable mounting frame 318-2, transverse rack 314-2, transverse gear 313-2,

[0025] Transverse moving reduction motor 315, longitudinal moving reduction motor 316, crane 317,

[0026] Welding machine 32, gas cylinder 33, fume purifier 34, workbench 35, fire protection system 36,

[0027] Welding work carriage 4. DETAILED DESCRIPTION

[0028] In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the exemplary embodiments of the present application are further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other unless they conflict.

[0029] Example 1

[0030] like Figure 1 As shown, the welding vehicle of the embodiment of the present application includes:

[0031] A movable vehicle body;

[0032] A welding carriage is fixed to the vehicle body; the interior of the welding carriage contains a welding operation system and a lifting device that can move laterally and longitudinally;

[0033] A power supply system is connected to the welding operation system to supply power to the welding operation system.

[0034] The embodiments of the present application adopt the above technical solutions, which have the following technical effects:

[0035] The welding vehicle of the present embodiment is movable, thereby driving the welding system. When moved to a desired welding location, the power supply system supplies power to the welding system, allowing welding to proceed. Thus, the welding vehicle of the present embodiment is easily movable and can be moved to a desired location for welding.

[0036] In practice, the vehicle body comprises:

[0037] The front of the vehicle 1 has a road running mechanism 12 at the bottom of the front of the vehicle;

[0038] The chassis 14 is connected to the rear of the vehicle head, and a road running mechanism 12 is provided at the bottom of the chassis; wherein the welding operation carriage 4 is fixedly connected to the chassis;

[0039] The welding vehicle also includes:

[0040] A plurality of liftable railway running mechanisms 13, wherein the railway running mechanisms are provided at the bottom of the locomotive head and the bottom of the chassis;

[0041] Among them, after the railway running mechanism descends to a preset low position and is locked, the railway running mechanism is lower than the road running mechanism and drives the welding work vehicle to move; after the railway running mechanism rises to a preset high position and is locked, the road running mechanism is lower than the railway running mechanism and drives the welding work vehicle to move.

[0042] The welding vehicle of the present embodiment has a road-based running structure 12 and a rail-based running mechanism at the bottom of the vehicle head, and a road-based running structure 12 and a rail-based running mechanism at the bottom of the chassis. This provides the foundation for the welding vehicle to achieve dual travel. When road travel is required, the rail-based running mechanism rises to or remains locked in a preset high position, whereupon the road-based running mechanism lowers below the rail-based running mechanism. At this point, the road-based running mechanism can contact the road surface and drive the welding vehicle along the road. When rail travel is required at the work site, the rail-based running mechanism descends to a preset low position where it locks, whereupon the rail-based running mechanism lowers below the road-based running mechanism. At this point, the rail-based running mechanism can contact the railroad track and drive the welding vehicle along the railroad track. The welding vehicle of the present embodiment achieves dual travel, enabling convenient and rapid movement on the road. When rail travel is required, the vehicle can quickly switch to rail travel, enabling rapid rail travel and welding operations.

[0043] In implementation, such as Figure 1 As shown, the railway running mechanism includes:

[0044] frame;

[0045] Bogie 132;

[0046] A longitudinal telescopic device 131 capable of extending and retracting in the longitudinal direction, the bogie being mounted on the lower end of the longitudinal telescopic device, and the upper ends of the longitudinal telescopic devices being fixedly connected to the frame;

[0047] Each of the frames is fixedly connected to the bottom of the vehicle head and the bottom of the chassis respectively;

[0048] Among them, after the longitudinal telescopic device is extended to a preset low position and locked, the bottom of the running wheel of the bogie is lower than the bottom of the highway running mechanism; after the longitudinal telescopic device is retracted to a preset high position and locked, the bottom of the highway running mechanism is lower than the bottom of the railway running mechanism.

[0049] The railway running mechanism formed by the frame, the bogie and the longitudinal telescopic device has a simple structure and can conveniently realize the raising and lowering of the running wheels of the bogie, thereby conveniently realizing the conversion between road running and railway running.

[0050] During implementation, the welding vehicle further includes an electrical control system disposed in the vehicle head; the electrical control system includes a road running mode, a railway running mode, and a road-rail conversion mode, wherein:

[0051] In the road-rail conversion mode, the longitudinal telescopic device can be extended to a preset low position and locked, so that the railway running mechanism is lower than the road running mechanism; the longitudinal telescopic device can be retracted to a preset high position and locked, so that the road running mechanism is lower than the railway running mechanism;

[0052] In the highway running mode, the longitudinal telescopic device is located at a preset high position and is locked, the highway running mechanism is lower than the railway running mechanism and can drive the welding vehicle to run;

[0053] In the railway running mode, the longitudinal telescopic device is located at a preset low position and is locked, the railway running mechanism is lower than the road running mechanism and can drive the welding vehicle to run.

[0054] In this way, in the road-rail conversion mode, the welding work vehicle cannot move, but can only extend the longitudinal telescopic device to the preset low position and lock it, and then retract the longitudinal telescopic device to the preset high position and lock it, so as to switch between railway running and road running, thereby ensuring the safety of the welding work vehicle in the road-rail conversion mode.

[0055] In this way, the safety of road running is guaranteed, and the longitudinal telescopic device will not be extended or retracted during road running, avoiding the risk of the railway running mechanism 13 falling as a whole or in part; the safety of railway running is guaranteed, and the longitudinal telescopic device will not be extended or retracted during railway running.

[0056] The three modes of road-rail conversion mode, highway operation mode, and railway operation mode are independent of each other and realize different functions.

[0057] In implementation, such as Figure 2 and Figure 3 As shown, the welding vehicle further includes a lifting device 31; the lifting device 31 includes:

[0058] A longitudinal rack 314 - 1 is fixed above the welding carriage, and the longitudinal rack 314 - 1 extends along the length direction of the welding carriage;

[0059] A longitudinal gear 313-1 and a longitudinal movable mounting frame 318-1, wherein the longitudinal gear 313-1 is fixed to the outside of the longitudinal movable mounting frame 318-1 and is meshed with the longitudinal rack 314-1, so that the longitudinal movable mounting frame 318-1 can move along the length direction of the welding operation carriage;

[0060] The longitudinal movable mounting frame 318-1 extends along the width of the welding work carriage. The longitudinal rack 314-1, longitudinal gear 313-1, and longitudinal movable mounting frame 318-1 cooperate to enable longitudinal movable mounting frame 318-1 to move along the length of the welding work carriage, providing a structural foundation for the crane 317 to move along the length of the welding work carriage.

[0061] In implementation, such as Figure 4 As shown, the lifting device 31 also includes:

[0062] A longitudinal guide rail 311 - 1 is fixed above the welding operation carriage, and the guiding direction of the longitudinal guide rail 311 - 1 is the length direction of the welding operation carriage;

[0063] The longitudinal guide wheels are fixed at both ends of the longitudinal movable mounting frame 318-1, and the longitudinal guide wheels and the longitudinal guide rail 311-1 are guided and matched, so that the longitudinal movable mounting frame 318-1 can move along the guide direction of the longitudinal guide rail 311-1.

[0064] The longitudinal guide rail 311 - 1 cooperates with the longitudinal guide wheel to make the longitudinal movable mounting frame 318 - 1 move more smoothly along the length direction of the welding operation carriage.

[0065] In implementation, such as Figure 3 As shown, the lifting device also includes:

[0066] A transverse guide rail 311 - 2 is provided at the longitudinal movable mounting frame, and the guiding direction of the transverse guide rail 311 - 2 extends along the width direction of the welding operation carriage;

[0067] A transverse pulley 312-2 and a transverse movable mounting frame 318-2, wherein the transverse pulley 312-2 is mounted on the outside of the transverse movable mounting frame 318-2 and is in rolling connection with the transverse guide rail 311-2, so that the transverse movable mounting frame 318-2 can move along the width direction of the welding operation carriage;

[0068] A crane 317, wherein the crane 317 is fixedly installed under the transverse movable mounting frame 318-2;

[0069] The transverse movable mounting frame 318 - 2 extends along the width direction of the welding operation carriage.

[0070] The transverse guide rail 311-2, the transverse pulley 312-2 and the transverse movable mounting frame 318-2 cooperate to enable the transverse movable mounting frame 318-2 to move along the width direction of the welding operation carriage, providing a structural basis for the crane 317 to move along the width direction of the welding operation carriage.

[0071] In implementation, such as Figure 4 As shown, the lifting device 31 also includes:

[0072] A transverse rack 314 - 2 is fixed on the transverse movable mounting frame 318 - 2 , and the transverse rack 314 - 2 extends along the width direction of the welding operation carriage;

[0073] The transverse gear 313-2 is meshed with the transverse rack 314-2. The transverse gear 313-2 and the transverse movable mounting frame 318-2 are fixedly connected by fixing parts. The transverse gear 313-2 can move along the transverse rack 314-2, thereby driving the transverse movable mounting frame 318-2 to extend out of the welding work carriage in the width direction of the welding work carriage.

[0074] The transverse rack 314-2, transverse gear 313-2, transverse gear 313-2, and transverse movable mounting frame 318-2 are fixedly connected by fixings, so that the transverse movable mounting frame 318-2 extends from the welding work compartment in the width direction of the welding work compartment, thereby allowing the crane 317 to extend from the welding work compartment in the width direction of the welding work compartment. In this way, the crane 317 can extend from the width direction of the welding work compartment, allowing the crane 317 to lift the workpiece to be welded into the welding work compartment for welding with the welder 32, or the crane 317 can lift the welder 32 outside the welding work compartment for welding outside the compartment.

[0075] In implementation, such as Figure 4 As shown, the lifting device 31 also includes:

[0076] The transverse movement reduction motor 315 drives the transverse gear 313 - 2 to move along the transverse rack 314 - 2 ;

[0077] The longitudinal movement reduction motor 316 drives the longitudinal gear 313 - 1 to move along the longitudinal guide rail 311 - 1 .

[0078] The transverse movement reduction motor 315 provides power for the crane 317 to move in the width direction of the welding operation carriage, and the longitudinal movement reduction motor 316 provides power for the crane 317 to move in the length direction of the welding operation carriage.

[0079] In implementation, such as Figure 1 and Figure 2 As shown, the welding vehicle also includes a power supply system; the power supply system includes a power supply 21, a power distribution cabinet 22, and an electrical control cabinet 23;

[0080] The power supply 21 is fixed on the chassis 14 and is located between the vehicle head 1 and the welding operation carriage 4; the power supply is a battery system and / or a fuel generator system;

[0081] The welding operation carriage 4 is sequentially provided with a power room and an operation room from the front end to the chassis; wherein, the power distribution cabinet 22 and the electrical control cabinet 23 are provided in the power room.

[0082] In this way, the welding vehicle has its own power supply system and can work independently. Background art welding machines are limited by the location of the external power supply and have poor independence.

[0083] In implementation, such as Figure 1 and Figure 2 As shown, the welding operation system is fixed in the operation room; the welding operation system includes:

[0084] The lifting device 31, welding machine 32, gas cylinder 33, smoke purifier 34, workbench 35, fire protection system 36;

[0085] The lifting device 31 is arranged in the workshop, the welding machine 32 and the gas cylinder 33 are arranged on the side of the lifting device 31 and the workshop close to the front of the vehicle, and the workbench 35 and the fume purifier 34 are arranged on the side of the lifting device 31 and the workshop away from the front of the vehicle.

[0086] When welding is performed in the welding vehicle, the operation can be performed on the workbench 35. The welding smoke, dust, etc. generated by welding can be collected and purified by the smoke purifier 34. If a fire occurs, the fire fighting system 36 can be used to extinguish the fire in time.

[0087] Specifically, such as Figure 1 As shown, the front of the vehicle 1 has a driver's cab 11, the tail of the welding operation vehicle 4 is provided with a coupler 15, and the crane 317 is an electric hoist.

[0088] Specifically, the power supply system is the welding vehicle's electrical power supply system, providing power for the chassis and welding compartment, meeting the vehicle's travel and operational needs. It can also provide emergency power for external electrical equipment.

[0089] Specifically, the welding operation system is used to complete welding operations.

[0090] Specifically, the welding vehicle further includes a hydraulic system, which mainly includes a traveling hydraulic system, a railway traveling mechanism lifting cylinder, and a locking hydraulic system;

[0091] The traveling hydraulic system is used to provide power for the vehicle to travel;

[0092] The railway running mechanism lifting cylinder and locking hydraulic system are used to lift the railway running mechanism, lock the stroke after the railway running mechanism is in place, and lock the axle of the railway running mechanism to prevent the axle of the railway running mechanism from falling.

[0093] In the description of the present application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present application.

[0094] In this application and its embodiments, unless otherwise expressly specified or limited, terms such as "disposed," "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0095] In the present application and its embodiments, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0096] The disclosure above provides many different embodiments or examples for realizing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0097] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0098] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A welding vehicle, characterized in that: include: A movable vehicle body; A welding operation carriage (4) is fixed on the vehicle body; the interior of the welding operation carriage contains a welding operation system and a lifting device that can move laterally and longitudinally; A power supply system is connected to the welding operation system to supply power to the welding operation system.

2. The welding vehicle according to claim 1, characterized in that: The vehicle body comprises: A vehicle head (1), the bottom of which is provided with a road running mechanism (12); A chassis (14) is connected to the rear of the vehicle head, and a road running mechanism (12) is provided at the bottom of the chassis; wherein the welding operation carriage (4) is fixedly connected to the chassis; The welding vehicle also includes: A plurality of liftable railway running mechanisms (13), wherein the railway running mechanisms are provided at the bottom of the locomotive head and the bottom of the chassis; Among them, after the railway running mechanism descends to a preset low position and is locked, the railway running mechanism is lower than the road running mechanism and drives the welding work vehicle to move; after the railway running mechanism rises to a preset high position and is locked, the road running mechanism is lower than the railway running mechanism and drives the welding work vehicle to move.

3. The welding vehicle according to claim 2, characterized in that: The railway running mechanism comprises: frame; Bogie (132); A longitudinal telescopic device (131) capable of telescoping in the longitudinal direction, wherein the bogie is mounted on the lower end of the longitudinal telescopic device, and the upper ends of the longitudinal telescopic devices are respectively fixedly connected to the frame; Each of the frames is fixedly connected to the bottom of the vehicle head and the bottom of the chassis respectively; Among them, after the longitudinal telescopic device is extended to a preset low position and locked, the bottom of the running wheel of the bogie is lower than the bottom of the highway running mechanism; after the longitudinal telescopic device is retracted to a preset high position and locked, the bottom of the highway running mechanism is lower than the bottom of the railway running mechanism.

4. The welding vehicle according to claim 3, characterized in that: The vehicle further includes an electrical control system disposed in the vehicle head; the electrical control system includes a road running mode, a railway running mode, and a road-rail conversion mode, wherein: In the road-rail conversion mode, the longitudinal telescopic device can be extended to a preset low position and locked, so that the railway running mechanism is lower than the road running mechanism; the longitudinal telescopic device can be retracted to a preset high position and locked, so that the road running mechanism is lower than the railway running mechanism; In the highway running mode, the longitudinal telescopic device is located at a preset high position and is locked, the highway running mechanism is lower than the railway running mechanism and can drive the welding vehicle to run; In the railway running mode, the longitudinal telescopic device is located at a preset low position and is locked, the railway running mechanism is lower than the road running mechanism and can drive the welding vehicle to run.

5. The welding vehicle according to any one of claims 2 to 4, characterized in that: It also includes a lifting device (31); the lifting device (31) includes: A longitudinal rack (314-1) is fixed above the welding operation carriage, and the longitudinal rack (314-1) extends along the length direction of the welding operation carriage; a longitudinal gear (313-1) and a longitudinal movable mounting frame (318-1), wherein the longitudinal gear (313-1) is fixed to the outside of the longitudinal movable mounting frame (318-1) and is meshedly connected with the longitudinal rack (314-1), so that the longitudinal movable mounting frame (318-1) can move along the length direction of the welding operation carriage; Wherein, the longitudinal movable installation frame (318-1) extends along the width direction of the welding operation carriage.

6. The welding vehicle according to claim 5, characterized in that: The lifting device (31) further comprises: A longitudinal guide rail (311-1) is fixed above the welding operation carriage, and the guiding direction of the longitudinal guide rail (311-1) is the length direction of the welding operation carriage; Longitudinal guide wheels are fixed at both ends of the longitudinal movable installation frame (318-1), and the longitudinal guide wheels and the longitudinal guide rail (311-1) are guided and matched, so that the longitudinal movable installation frame (318-1) can move along the guide direction of the longitudinal guide rail (311-1).

7. The welding vehicle according to claim 6, characterized in that: The lifting device also includes: A transverse guide rail (311-2) is provided at the longitudinal movable installation frame, and the guiding direction of the transverse guide rail (311-2) extends along the width direction of the welding operation carriage; a transverse pulley (312-2) and a transverse movable mounting frame (318-2), wherein the transverse pulley (312-2) is mounted on the outside of the transverse movable mounting frame (318-2) and is rollingly connected to the transverse guide rail (311-2), so that the transverse movable mounting frame (318-2) can move along the width direction of the welding operation carriage; A crane (317), wherein the crane (317) is fixedly installed below the transversely movable mounting frame (318-2); Wherein, the transverse movable mounting frame (318-2) extends along the width direction of the welding operation carriage.

8. The welding vehicle according to claim 7, characterized in that: The lifting device (31) further comprises: A transverse rack (314-2) is fixed on the transverse movable mounting frame (318-2), and the transverse rack (314-2) extends along the width direction of the welding operation carriage; A transverse gear (313-2) is meshed with the transverse rack (314-2), the transverse gear (313-2) and the transverse movable mounting frame (318-2) are fixedly connected via a fixing member, and the transverse gear (313-2) can move along the transverse rack (314-2), thereby driving the transverse movable mounting frame (318-2) to extend out of the welding operation carriage in the width direction of the welding operation carriage.

9. The welding vehicle according to claim 8, characterized in that: The lifting device (31) further comprises: A transverse movement reduction motor (315) drives the transverse gear (313-2) to move along the transverse rack (314-2); A longitudinally moving reduction motor (316) drives the longitudinal gear (313-1) to move along the longitudinal guide rail (311-1).

10. The welding vehicle according to claim 9, characterized in that: The power supply system includes a power supply (21), a power distribution cabinet (22), and an electrical control cabinet (23); The power supply (21) is fixed on the chassis (14) and is located between the vehicle head (1) and the welding operation carriage (4); the power supply is a battery system and / or a fuel generator system; The welding operation carriage (4) is sequentially arranged as a power room and an operation room from the front of the carriage to the chassis; wherein the power distribution cabinet (22) and the electrical control cabinet (23) are arranged in the power room.

11. The welding vehicle according to claim 10, characterized in that: The welding operation system (3) is fixed in the operation room; the welding operation system (3) comprises: The lifting device (31), welding machine (32), gas cylinder (33), smoke purifier (34), workbench (35), fire protection system (36); The lifting device (31) is arranged in a workroom, the welding machine (32) and the gas cylinder (33) are arranged on a side of the lifting device (31) and the workroom close to the front of the vehicle, and the workbench (35) and the fume purifier (34) are arranged on a side of the lifting device (31) and the workroom away from the front of the vehicle.