Highway-railway rail welding equipment and operation method thereof

Abstract

The embodiment of the invention provides highway and railway dual-purpose rail welding equipment and an operation method. A highway and railway dual-purpose rail welding device is driven by a chassis to walk on a railway or a highway; one end of the hoisting device is rotationally connected to the frame, the other end of the hoisting device is connected with the welding device, and the welding device is hoisted and moved, so that the workable range of the welding device is expanded, and the equipment applicability is improved; the auxiliary protection device covers the outer side of the welding machine, so that the welding machine is prevented from being in direct contact with the ground in the process of hoisting or putting down the welding machine by the hoisting device; meanwhile, in the process that the hoisting device drives the welding machine to transfer, the welding machine is prevented from making hard contact with other equipment, and meanwhile the cross-country ability and flexibility of the whole machine are improved under the complex working condition in cooperation with the hoisting device; the rail lifting device is arranged to lift the steel rail to be in butt joint with the welding machine, when the welding machine conducts welding operation, it is guaranteed that the relative positions of the welding machine and the steel rail are fixed, and the welding effect is improved.

Description

Technical Field

[0001] This application relates to the technical field of railway maintenance. Specifically, it relates to a rail welding device for both railway and highway use and its operation method. Background Art

[0002] In China, railway rail welding mainly adopts three methods: flash welding, thermite welding, and gas pressure welding. Fixed flash welding is used for factory welding; existing flash welding and gas pressure welding equipment can automatically control welding, upsetting, holding pressure and upsetting the flash, post-weld holding pressure and cooling, etc. through a programmable logic controller, and can monitor and evaluate the welding process in real time, with the characteristics of controllable welding process and high welding quality, and is widely used in the welding operations of main line rails of each railway administration. Due to the internal structure of the turnout and the complex working conditions of the turnout pre-laying site, etc., the welding machine cannot effectively clamp the rails to be welded, and cannot weld the rail joints near positions such as the frog and switch rail with a small rail gap. Therefore, at present, for the welding of rail joints on the siding and turnout, due to the complex working conditions of the turnout pre-laying site and the complicated process of the operation equipment reaching the position to be welded, the operation mainly adopts the method of manual plus small machine, and the welding of the turnout area rail joints is realized through thermite welding. The weld joint is a casting structure. This operation method requires a large number of operators, has a high labor intensity, a high labor cost, and at the same time, due to the different experiences of the operators, the welding quality at the welding points is uneven. Compared with the flash welding and gas pressure welding that can achieve automatic control, the comprehensive mechanical properties of the weld joints of manual thermite welding are poor, the rail breakage rate is high, and the service life is low. Replacing thermite welding with flash welding or gas pressure welding to realize the rail joints in the turnout area is beneficial to improving the train operation safety of the line.

[0003] Based on the limitations of manual welding, currently, a rail welding device for both railway and highway use is adopted for rail welding at the turnout. Based on the situation that the welding machine and other equipment need to be switched between the highway and the railway, during the switching process, the welding machine and other equipment are prone to frequent shaking or tilting, resulting in hard contact between the welding machine and other equipment or the road surface, damaging the welding machine and affecting the normal service life of the welding machine. Summary of the Invention

[0004] In the embodiments of this application, a rail welding device for both railway and highway use and its operation method are provided to solve the problem that when the existing rail welding equipment switches between the highway and the railway, the welding machine is prone to collide due to shaking and tilting, resulting in damage to the welding machine.

[0005] To achieve the above object, this application provides the following technical solutions:

[0006] A rail welding device for both railway and highway use, comprising:

[0007] A loading platform, including a chassis, a vehicle frame, and related systems and accessories. The chassis is located below the vehicle frame and is used to drive the rail welding device for both railway and highway use to travel on the railway or highway;

[0008] A welding device, comprising a welding machine, a rail lifting device and an auxiliary protection device. The welding machine is used for welding rails. The auxiliary protection device covers the outside of the welding machine. The rail lifting device is located on the auxiliary protection device and is used to lift the rail to dock with the welding machine.

[0009] A hoisting device, one end of which is rotatably connected to the vehicle frame, and the other end is used to connect to the welding device, for hoisting and driving the movement of the welding device.

[0010] Optionally, the auxiliary protection device includes:

[0011] A welding machine protection frame, which covers the outer periphery of the welding machine and is detachably and fixedly connected to the hoisting device;

[0012] A plurality of protection frame legs, all located below the welding machine protection frame, for assisting in supporting the dual-purpose rail welding equipment for railway and highway.

[0013] Optionally, the auxiliary protection device further includes:

[0014] At least two groups of protection frame steel wheels, all located below the welding machine protection frame, for driving the welding machine device to move on the rail; any one group of the protection frame steel wheels includes two protection frame steel wheels arranged oppositely in the transverse direction.

[0015] Optionally, the welding machine protection frame includes a top protection frame, a bottom protection frame and a plurality of connecting frames. The upper and lower ends of any one of the connecting frames are respectively fixed to the top protection frame and the bottom protection frame;

[0016] Both the top protection frame and the bottom protection frame are rectangular frames.

[0017] Optionally, it further includes:

[0018] At least two groups of leg devices, each group of leg devices is located on the vehicle frame and arranged longitudinally; each group of leg devices includes two leg devices arranged on the transverse sides of the vehicle frame;

[0019] Any one of the leg devices includes a transverse telescopic leg and a vertical lifting leg. The fixed end of the transverse telescopic leg is connected to the vehicle frame, and the movable end of the transverse telescopic leg can telescopically move relative to the vehicle frame in the transverse direction;

[0020] The fixed end of the vertical lifting leg is fixed to the movable end of the transverse telescopic leg, and the movable end of the vertical lifting leg is used to support the ground.

[0021] Optionally, it further includes:

[0022] A slewing device, one end of which is fixedly connected to the vehicle frame and the other end is hinged to the hoisting device, for driving the hoisting device to rotate around a vertical axis.

[0023] Optionally, the hoisting device includes a telescopic boom and a quick-change joint. One end of the telescopic boom is hinged to the slewing device, and the other end is detachably and fixedly connected to the welding machine guard frame through the quick-change joint.

[0024] Optionally, the chassis includes:

[0025] At least two sets of traveling steel wheel devices, any one of which is movably connected to the chassis and is used for driving the rail and road dual-purpose rail welding equipment to travel on the railway;

[0026] At least two sets of crawler traveling devices, arranged side by side on the transverse two sides of the chassis, and are used for driving the rail and road dual-purpose rail welding equipment to travel on a flat road surface or on the rails;

[0027] Wherein, when the crawler traveling device travels on a flat road surface, the traveling steel wheel device rises away from the road surface; when the traveling steel wheel device travels on the railway, the traveling steel wheel device drops to support the rail surface and makes the crawler traveling device rise away from the road surface.

[0028] Optionally, it further includes:

[0029] A hydraulic system, located on the vehicle frame, and the hydraulic system is respectively connected to the traveling steel wheel device, the crawler traveling device, the hoisting device, the welding device and the slewing device to provide hydraulic power;

[0030] An electrical system, located on the vehicle frame, and is respectively connected to the traveling steel wheel device, the crawler traveling device, the hoisting device, the welding device and the slewing device for electrical control.

[0031] This application also provides an operation method of applying the rail and road dual-purpose rail welding equipment according to any one of the above embodiments. The method includes:

[0032] Driving the traveling steel wheel device and / or the crawler traveling device to travel to a preset position, driving the transverse telescopic outriggers to extend transversely, and the vertical lifting outriggers to descend vertically to support the rail and road dual-purpose rail welding equipment;

[0033] Driving the hoisting device to lift the welding device and the slewing device to rotate a preset angle, and rotating the welding device down to the working position;

[0034] Driving the rail lifting device to lift the rail to be welded to the jaws of the welding machine, and the welding machine performs welding operations;

[0035] After the welding operation is completed, drive the hoisting device to lift the welding device, and drive the slewing device to rotate to the initial position. The hoisting device lowers the guard frame steel wheel to cooperate with the rail.

[0036] The loading platform travels on the rail through the traveling steel wheel device, and at the same time, the welding device travels on the rail through the guard frame steel wheel.

[0037] A rail welding device for both railway and highway use provided by an embodiment of the present application includes a loading platform, which includes a chassis, a frame, related systems and accessories. The chassis is located below the frame and is used to drive the rail welding device for both railway and highway use to travel on railways or highways; a welding device, which includes a welding machine, a rail lifting device and an auxiliary protection device. The welding machine is used for welding rails. The auxiliary protection device is covered outside the welding machine. The rail lifting device is located on the auxiliary protection device and is used to lift the rail to be butted with the welding machine; a hoisting device, one end of which is rotatably connected to the frame, and the other end is used to connect to the welding device, and is used to lift and drive the welding device to move.

[0038] Adopting a rail welding device for both railway and highway use and an operation method provided by an embodiment of the present application, compared with the prior art, has the following technical effects:

[0039] In the present application, the loading platform drives the rail welding device for both railway and highway use to travel on railways or highways through the chassis; an auxiliary protection device is covered outside the welding machine to prevent the welding machine from coming into direct contact with the ground during the process of the hoisting device lifting or lowering the welding machine; at the same time, during the process of the hoisting device driving the welding machine to transfer, the welding machine can also be protected by the protection device to prevent hard contact with other devices during the transfer process, protect the welding machine, and do not affect the normal service life of the welding machine; at the same time, a rail lifting device is provided to lift the rail to be butted with the welding machine. When the welding machine is performing welding operations, it can ensure that the relative positions of the welding machine and the rail are fixed, reduce the problems of displacement of the welding machine or the rail caused by jitter or vibration during the welding operation, and improve the welding effect; at the same time, one end of the hoisting device is rotatably connected to the frame, and the other end is connected to the welding device to lift and move the welding device to expand the working range of the welding device and improve the applicability of the equipment. Description of the Drawings

[0040] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0041] Figure 1 It is a side view of the rail welding equipment for both railway and highway use provided by an embodiment of the present application;

[0042] Figure 2 It is a rear view of the rail welding equipment for both railway and highway use provided by an embodiment of the present application;

[0043] Figure 3 Top view of the rail welding equipment for both railway and highway applications provided by the embodiment of the present application;

[0044] Figure 4 Axonometric structure schematic diagram of the rail welding equipment for both railway and highway applications provided by the embodiment of the present application;

[0045] Figure 5 Side view of the opened legs of the rail welding equipment for both railway and highway applications provided by the embodiment of the present application;

[0046] Figure 6 Rear view of the opened legs of the rail welding equipment for both railway and highway applications provided by the embodiment of the present application;

[0047] Figure 7 Top view of the opened legs of the rail welding equipment for both railway and highway applications provided by the embodiment of the present application;

[0048] Figure 8 Top view of the rotating operation of the rail welding equipment for both railway and highway applications provided by the embodiment of the present application;

[0049] Figure 9 Front view of the rail welding equipment for both railway and highway applications (legs retracted, welding machine guard frame not removed);

[0050] Figure 10 Rear view of the rail welding equipment for both railway and highway applications (legs retracted, welding machine guard frame not removed);

[0051] Figure 11 Side view of the rail welding equipment for both railway and highway applications (legs retracted, welding machine guard frame not removed);

[0052] Figure 12 Axonometric side view of the rail welding equipment for both railway and highway applications (legs retracted, welding machine guard frame not removed);

[0053] Figure 13 Front view of the rail welding equipment for both railway and highway applications (legs opened, welding machine guard frame removed);

[0054] Figure 14 Top view of the rail welding equipment for both railway and highway applications (legs opened, welding machine guard frame removed);

[0055] Figure 15 Axonometric side view of the rail welding equipment for both railway and highway applications (legs opened, welding machine guard frame removed);

[0056] Figure 16 Side view of the retracted chassis legs of the rail welding equipment for both railway and highway applications;

[0057] Figure 17 Front view of the opened chassis legs of the rail welding equipment for both railway and highway applications;

[0058] Figure 18Side view of the chassis leg of the dual-purpose railway and highway rail welding equipment when opened

[0059] Figure 19 Axonometric view of the auxiliary device (not disassembled) of the dual-purpose railway and highway rail welding equipment

[0060] Figure 20 Axonometric view of the auxiliary device (welding machine protection frame removed) of the dual-purpose railway and highway rail welding equipment

[0061] Figure 21 Front view of the auxiliary device (welding machine protection frame removed) of the dual-purpose railway and highway rail welding equipment

[0062] Figure 22 Top view of the auxiliary device (welding machine protection frame removed) of the dual-purpose railway and highway rail welding equipment

[0063] Figure 23 Front view of the auxiliary device (welding machine protection frame not removed) of the dual-purpose railway and highway rail welding equipment

[0064] The markings in the attached drawings are as follows:

[0065] Dual-purpose railway and highway rail welding equipment 21, loading platform 211, slewing device 212, hoisting device 213, welding device 214, leg device 215, rail lifting device 216, power system 217, hydraulic system 218, electrical system 219;

[0066] Frame 2111, chassis 2112, crawler running device 21121, running steel wheel device 21122;

[0067] Telescopic boom 2131, quick-change joint 2132;

[0068] Welding machine 2141, welding machine protection frame 2142, protection frame leg 21423, protection frame steel wheel 2144;

[0069] Lateral telescopic leg 2151, vertical lifting leg 2152;

[0070] Dual-purpose railway and highway rail welding equipment 1, loading platform 11, frame 111, chassis 112, crawler running device 1121, running steel wheel device 1122, switching device 11221, slewing device 13, leg device 14, leg guide sleeve 141, guide post 142, leg mounting frame body 143, sliding telescopic part 144, hoisting device 15, telescopic boom 151, conversion joint 152, auxiliary protection device 16, auxiliary support frame 161, welding machine protection frame 162, quick connector 163, positioning pin 164, welding machine 17, power system 18, hydraulic system 19, electrical system 2. Specific implementation mode

[0071] An embodiment of the present invention discloses a rail welding equipment for both railway and highway use and its operation method, aiming to solve the problem that when the existing rail welding equipment switches between highway and railway, the welding machine is prone to collide due to shaking and tilting, resulting in damage to the welding machine.

[0072] In order to make the technical solutions and advantages in the embodiments of the present application clearer and more understandable, the following further details the exemplary embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0073] Embodiment 1

[0074] Please refer to Figure 1-8 , Figure 1 which is a side view of the rail welding equipment for both railway and highway use provided by the embodiment of the present application; Figure 2 which is a rear view of the rail welding equipment for both railway and highway use 21 provided by the embodiment of the present application; Figure 3 which is a top view of the rail welding equipment for both railway and highway use 21 provided by the embodiment of the present application; Figure 4 which is an axonometric structure diagram of the rail welding equipment for both railway and highway use 21 provided by the embodiment of the present application; Figure 5 which is a side view of the rail welding equipment for both railway and highway use 21 with its legs opened provided by the embodiment of the present application; Figure 6 which is a rear view of the rail welding equipment for both railway and highway use 21 with its legs opened provided by the embodiment of the present application; Figure 7 which is a top view of the rail welding equipment for both railway and highway use 21 with its legs opened provided by the embodiment of the present application; Figure 8 which is a top view of the rail welding equipment for both railway and highway use 21 during rotation operation provided by the embodiment of the present application.

[0075] In a specific embodiment, the present application provides a rail welding device for both railway and road use, including a loading platform 211, a welding device 214, and a hoisting device 213. Among them, the loading platform 211 includes a chassis 2112, a vehicle frame 2111, and related systems and accessories. The chassis 2112 is located below the vehicle frame 2111. The chassis 2112 includes a traveling steel wheel device 21122 and a crawler traveling device 21121. The rail welding device for both railway and road use realizes the traveling switch on railways and flat roads through the traveling steel wheel device 21122 and the crawler traveling device 21121, enabling the rail welding device to travel to positions inside the turnout, the frog between the rails, the switch rail, etc. for rail welding, and being applicable to complex working conditions. The vehicle frame 2111 is used to carry the cab, the power system 217, the hydraulic system 218, and the electrical system 219. The related systems and accessories include the power system 217, the hydraulic system 218, the electrical system 219, etc. The power system 217 includes a charger, a storage battery, an electrical control cabinet, and a generator. The charger is connected to an external power source and charges the storage battery. The voltage of the storage battery is the available voltage for the welding machine 2141 system and the hydraulic system 218. Usually, the storage battery is charged through the charger connected to the external power source. When it is inconvenient to connect to the external power source for charging and there is a construction requirement, the storage battery can be charged by the generator. The hydraulic system 218 is used to provide hydraulic power for the crawler traveling device 21121, the traveling steel wheel device 21122, the slewing device 212, the hoisting device 213, the rail lifting device 216, and the welding machine 2141. The hydraulic system 218 is provided with an emergency pump, which can perform emergency operations or emergency vehicle recovery when the pump station fails. The electrical system 219 is used to provide electrical control for the crawler traveling device 21121, the traveling steel wheel device 21122, the slewing device 212, the hoisting device 213, the rail lifting device 216, the welding machine 2141, etc. The hoisting device 213 is used to hoist the welding machine 2141 and can assist in supporting the whole machine on uphill and downhill slopes or other harsh working conditions, improving the flexibility and cross-country ability of the whole machine. The cables of the welding machine 2141 can adopt an automatic cable retracting and releasing device or the cables can be arranged along the boom of the cable retracting and releasing device, and a quick-connect joint is adopted for cable connection during connection.

[0076] One end of the hoisting device 213 is rotatably connected to the vehicle frame 2111, and the other end is connected to the welding device 214. The hoisting device 213 can perform slewing motion relative to the vehicle frame 2111, thereby adjusting the slewing angle according to the position of the rail to be welded, expanding the working range of the device, and improving the applicability of the device.

[0077] Based on the situation that the running operation of the railway-highway dual-purpose equipment requires frequent switching between running steel wheels and crawlers, during the switching process, the welding machine 2141 will experience a certain degree of shaking or tilting due to the switching action and the center of gravity problem. When the working conditions are relatively complex, the shaking of the welding machine 2141 is likely to cause friction or collision with other equipment or the ground, which will damage the welding machine 2141 and affect its normal service life.

[0078] To solve the above technical problems, the welding device 214 of the present application includes a welding machine 2141, a rail lifting device 216, and an auxiliary protection device. The welding machine 2141 is used for welding rails, and the auxiliary protection device is covered outside the welding machine 2141; by additionally setting the auxiliary protection device to protect the welding machine 2141, to prevent the welding machine 2141 from rubbing or colliding with external equipment during the running and switching process of the rail welding equipment; specifically, one end of the lifting device 213 is rotatably connected to the vehicle frame 2111, and the other end is connected to the welding device 214, which is used to lift and drive the welding device 214 to the working position. Preferably, the lifting device 213 indirectly lifts the welding machine 2141 through the lifting auxiliary protection device to further improve the stability during the lifting process and reduce the occurrence of shaking or tilting of the welding. The auxiliary protection device is preferably arranged at the end of the lifting device 213 and sleeved outside the welding, and is rigidly connected to the welding machine 2141, preferably by welding, so as to form an integral body with the welding and the auxiliary protection device; the welding device 214 is detachably fixedly connected to the lifting device 213, which is convenient for disassembly; when the whole machine reaches the operation area, the auxiliary device can be quickly removed, which is convenient for the welding machine 2141 to carry out welding work; at the same time, when needed, the welding device 214 can be replaced with other working devices to work, realizing multi-purpose of one machine; the lifting device 213 is used to protect the welding machine 2141 and can be used to assist in supporting the whole machine during going up and down the track and large-angle turning.

[0079] To further improve the welding effect, a rail lifting device 216 is set to lift the rail to correspond to the interface of the welding machine 2141 to stabilize the rail, reduce the jitter or vibration during the welding process, and improve the qualified rate of the weld seam; specifically, the rail to be welded is lifted into the jaws of the welding machine 2141 to assist the welding machine 2141 in carrying out welding operations.

[0080] Adopting a railway-highway dual-purpose rail welding equipment provided in the embodiment of the present application, compared with the prior art, has the following technical effects:

[0081] In this application, the loading platform 211 drives the rail and road dual-purpose rail welding equipment to move on railways or roads through the chassis 2112; an auxiliary protection device is arranged outside the welding machine 2141 to prevent the welding machine 2141 from directly contacting the ground during the process of the lifting device 213 lifting or lowering the welding machine 2141; at the same time, during the process of the lifting device 213 driving the welding machine 2141 for transfer, the welding machine 2141 can also be protected by the protection device to prevent hard contact with other equipment during the transfer process, protecting the welding machine 2141 and not affecting the normal service life of the welding machine 2141; at the same time, a rail lifting device 216 is set to lift the rail and dock it with the welding machine 2141. When the welding machine 2141 is performing welding operations, it can ensure that the relative positions of the welding machine 2141 and the rail are fixed, reducing the problems of displacement of the welding machine 2141 or the rail caused by jitter or vibration during the welding operation and improving the welding effect; at the same time, one end of the lifting device 213 is rotatably connected to the vehicle frame 2111, and the other end is connected to the welding device 214 to lift and move the welding device 214, so as to expand the working range of the welding device 214 and improve the applicability of the equipment.

[0082] Specifically, the auxiliary protection device includes a welding machine protection frame 2142 and a plurality of protection frame legs 21423; among them, the welding machine protection frame 2142 is arranged outside the periphery of the welding machine 2141 and is detachably and fixedly connected to the lifting device 213; specifically, the welding machine protection frame 2142 is connected to the lifting device 213 through a quick-change joint 2132. The welding machine protection frame 2142 can be set as a rectangular frame structure, and the welding machine 2141 is located inside the rectangular frame structure to protect the welding from being knocked by the outside during auxiliary support or running; at the same time, each protection frame leg 21423 is arranged below the welding machine protection frame 2142, preferably set to 4, and are respectively arranged at the top corners of the rectangular frame structure to assist in supporting the whole machine through the protection frame legs 21423 to protect the bottom of the welding machine 2141 from being knocked.

[0083] Furthermore, the auxiliary protection device further includes at least two groups of protection frame steel wheels 2144, which are also arranged below the welding machine protection frame 2142 to drive the welding device 214 to move on the rail. When the whole machine moves on the track, the welding machine 2141 device can be supported by the protection frame steel wheels 2144 to assist the whole machine to quickly move to the welding position, reduce the axle weight of the whole machine, and improve the stability and safety of the whole machine. Among them, any group of protection frame steel wheels 2144 includes two protection frame steel wheels 2144 arranged opposite to each other in the transverse direction, and the transverse direction here is the transverse direction of the rail; the protection frame steel wheels 2144 are preferably set to 2 groups. In other embodiments, the number of groups of protection frame steel wheels 2144 can be set according to the size of the welding machine protection frame 2142, which will not be elaborated here.

[0084] Furthermore, the welding machine protection frame 2142 includes a top protection frame, a bottom protection frame, and several connecting frames. The upper and lower ends of any one connecting frame are respectively fixed to the top protection frame and the bottom protection frame. Both the top protection frame and the bottom protection frame are rectangular frames, and the welding machine protection frame 2142 is specifically a trapezoidal frame structure. The number of connecting frames is 4, which are respectively arranged at the top corners of the top protection frame, so as to protect the welding machine 2141 from being bumped and reduce the overall weight of the machine at the same time.

[0085] In this embodiment, the above-mentioned dual-purpose rail welding equipment for railway and highway also includes at least two groups of leg devices 215. Each group of leg devices 215 is located on the vehicle frame 2111 and arranged longitudinally. Each group of leg devices 215 includes two leg devices 215 arranged on the transverse sides of the vehicle frame 2111. By setting the leg devices 215 to support the whole dual-purpose rail welding equipment for railway and highway, any one leg device 215 includes a transverse telescopic leg 2151 and a vertical lifting leg 2152. The fixed end of the transverse telescopic leg 2151 is connected to the vehicle frame 2111, and the movable end of the transverse telescopic leg 2151 can move telescopically relative to the vehicle frame 2111 in the transverse direction. The fixed end of the vertical lifting leg 2152 is fixed to the movable end of the transverse telescopic leg 2151, and the movable end of the vertical lifting leg 2152 is used to support the ground.

[0086] The transverse telescopic leg 2151 can be telescoped in the transverse direction of the vehicle frame 2111 by the power provided by the telescopic oil cylinder, and the vertical lifting leg 2152 can be lifted vertically by the power provided by the lifting oil cylinder. When the lifting device 213 turns to operate, the transverse telescopic leg 2151 extends, and the vertical lifting leg 2152 descends to the ground to support the whole machine. Preferably, the four leg devices 215 are symmetrically arranged on the front and rear ends of the vehicle frame 2111 left and right.

[0087] Optionally, the lifting device 213 and the vehicle frame 2111 are rotatably connected through a slewing device 212. One end of the slewing device 212 is fixedly connected to the vehicle frame 2111, and the other end is hinged to the lifting device 213, which is used to drive the lifting device 213 to rotate around the vertical axis to realize the slewing action, so that the lifting device 213 can rotate relative to the vehicle frame 2111 for flexible steering and expand the working range of the equipment. At the same time, the lifting device 213 is hinged to the slewing device 212, so that the lifting device 213 can adjust the pitch angle to further expand the lifting operation range.

[0088] Among them, the lifting device 213 includes a telescopic boom 2131 and a quick-change joint 2132. One end of the telescopic boom 2131 is hinged to the slewing device 212, and the other end is detachably fixedly connected to the welding machine protection frame 2142 through the quick-change joint 2132, so as to increase the force-bearing area when lifting the welding machine 2141 through the welding machine protection frame 2142 and improve the stability of lifting.

[0089] Based on the above embodiments, the chassis 2112 includes at least two sets of running steel wheel devices 21122, and any one set of running steel wheel devices 21122 is movably connected to the chassis 2112 for driving the rail and road dual-purpose rail welding equipment to run on the railway;

[0090] At least two sets of crawler running devices 21121 are arranged side by side on the transverse sides of the chassis 2112 for driving the rail and road dual-purpose rail welding equipment to run on a flat road surface or on the rails;

[0091] Wherein, when the crawler running device 21121 runs on a flat road surface, the running steel wheel device 21122 rises and disengages from the road surface; when the running steel wheel device 21122 runs on the railway, the running steel wheel device 21122 drops to support the rail surface and causes the crawler running device 21121 to rise and disengage from the road surface.

[0092] The running steel wheel devices 21122 are at least two sets, and the crawler running devices 21121 are also at least two sets. Any one set of running steel wheel devices 21122 is movably connected to the chassis 2112 for driving the rail and road dual-purpose rail welding equipment to run on the railway; two sets of crawler running devices 21121 are arranged side by side on the transverse sides of the chassis 2112 for driving the rail and road dual-purpose rail welding equipment to run on the road. Wherein, when the crawler running device 21121 runs on the road, the running steel wheel device 21122 rises and disengages from the road surface; when the running steel wheel device 21122 runs on the railway, the running steel wheel device 21122 drops to support the rail surface and causes the crawler running device 21121 to rise and disengage from the road surface. In this embodiment, the switching between the crawler running device 21121 and the running steel wheel device 21122 can be specifically realized by a switching device. One end of the switching device is connected to the chassis 2112, and the other end is connected to the running steel wheel device 21122 for adjusting the vertical position of the running steel wheel device 21122 relative to the crawler running device 21121. When the running steel wheel device 21122 is lower than the crawler running device 21121, the running steel wheel device 21122 contacts the ground for running on the rail surface; when the switching device drives the running steel wheel device 21122 to move upward and the running steel wheel device 21122 is higher than the crawler running device 21121, the crawler running device 21121 contacts the ground for running on the road surface; thus, the switching between running on the road and running on the railway is realized. The switching device can be specifically set as a cylinder or an oil cylinder, which can be set according to the existing technology and will not be elaborated here.

[0093] The specific construction process includes:

[0094] S1: The rail and road dual-purpose rail welding equipment is loaded by a flatbed truck and is marshaled into the pre-laid location together with the vehicle loading turnout components;

[0095] S2: Near the position to be welded, the rail welding equipment for both railway and road use travels down by the crawler traveling device 21121, travels onto the track by the crawler, and during the traveling process, if encountering complex working conditions such as uphill and downhill slopes, it can be assisted by the hoisting device 213 and the guard frame legs 21423 of the welding device 214;

[0096] S3: The rail welding equipment for both railway and road use switches to travel by the traveling steel wheel device 21122. The hoisting device 213 places the guard frame steel wheels 2144 of the welding device 214 onto the rail, and the whole machine travels to near the position to be welded by the steel wheels;

[0097] S4: The horizontal telescopic leg 2151 extends, and the vertical lifting leg 2152 descends to the ground to support the whole machine;

[0098] S5: The hoisting device 213 lifts the welding device 214, and the slewing device 212 performs a slewing action to rotate and lower the welding device 214 to near the position to be welded;

[0099] S6: The guard frame legs 21423 of the welding device 214 assist in supporting the welding machine guard frame 2142, and the rail lifting device 216 lifts the rail to be welded to near the jaws of the welding machine 2141;

[0100] S7: The welding machine 2141 performs welding operations;

[0101] S8: After the welding operation is completed, the hoisting device 213 lifts the welding device 214, the slewing device 212 rotates back to the original position, the hoisting device 213 lowers the guard frame steel wheels 2144 of the welding device 214 onto the rail, and the whole machine travels to the next position to be welded by the steel wheels, repeating S3 - S7 until the welding is completed;

[0102] S9: The hoisting device 213 lifts the welding device 214, the legs are retracted, and the whole machine switches to travel by the crawler traveling device 21121, travels to the flatbed truck by the crawler, and leaves the welding position.

[0103] For the above - mentioned rail welding equipment for both railway and road use, an auxiliary protection device is used to protect the welding machine 2141 and assist in supporting the whole machine. The rail - road dual - purpose chassis 2112 is adopted, with extremely strong adaptability, flexible steering, good impact resistance of the whole machine, and high welding quality; the process before the rail - road dual - purpose welding equipment 21 reaches the welding position is simple, convenient, and time - saving; the whole machine of the rail - road dual - purpose welding equipment 21 is simple and flexible, reducing the labor intensity of workers and having high safety.

[0104] Based on the above - mentioned rail welding equipment for both railway and road use, the present application also provides an operation method based on the above - mentioned equipment, and this method includes:

[0105] Drive the running steel wheel device 21122 and / or the crawler running device 21121 to run to the preset position, drive the lateral telescopic outrigger 2151 to extend laterally, and drive the vertical lifting outrigger 2152 to lower vertically to support the dual-purpose rail welding equipment for railway and highway;

[0106] Drive the hoisting device 213 to lift the welding device 214 and rotate the slewing device 212 by a preset angle, and rotate and lower the welding device 214 to the working position;

[0107] Drive the rail lifting device 216 to lift the rail to be welded to the jaws of the welding machine 2141, and the welding machine 2141 performs welding operations;

[0108] After the welding operation is completed, drive the hoisting device 213 to lift the welding device 214, and drive the slewing device 212 to rotate to the initial position, and the hoisting device 213 lowers the guard frame steel wheel 2144 to cooperate with the rail;

[0109] The loading platform 211 travels on the rail through the running steel wheel device 21122, and at the same time the welding device 214 travels on the rail through the guard frame steel wheel 2144.

[0110] Embodiment 2

[0111] Figure 9 Front view of the dual-purpose rail welding equipment for railway and highway (outriggers retracted, welding machine guard frame not removed); Figure 10 Rear view of the dual-purpose rail welding equipment for railway and highway (outriggers retracted, welding machine guard frame not removed); Figure 11 Side view of the dual-purpose rail welding equipment for railway and highway (outriggers retracted, welding machine guard frame not removed); Figure 12 Axonometric view of the dual-purpose rail welding equipment for railway and highway (outriggers retracted, welding machine guard frame not removed); Figure 13 Front view of the dual-purpose rail welding equipment for railway and highway (outriggers opened, welding machine guard frame removed); Figure 14 Top view of the dual-purpose rail welding equipment for railway and highway (outriggers opened, welding machine guard frame removed);

[0112] Figure 15 Axonometric view of the dual-purpose rail welding equipment for railway and highway (outriggers opened, welding machine guard frame removed); Figure 16 Side view of the dual-purpose rail welding equipment chassis with outriggers retracted; Figure 17 Front view of the dual-purpose rail welding equipment chassis with outriggers opened; Figure 18 Side view of the dual-purpose rail welding equipment chassis with outriggers opened; Figure 19 Axonometric view of the auxiliary device of the dual-purpose rail welding equipment (not removed); Figure 20 Axonometric view of the auxiliary device of the dual-purpose rail welding equipment (welding machine guard frame removed); Figure 21 Front view of the auxiliary device of the dual-purpose rail welding equipment (welding machine guard frame removed);

[0113] Figure 22 Top view of the auxiliary device for the combined railway and highway rail welding equipment (welding machine protective frame removed); Figure 23 Front view of the auxiliary device for the combined railway and highway rail welding equipment (welding machine protective frame not removed).

[0114] In another embodiment, the combined railway and highway rail welding equipment provided in the present application includes a loading platform 11, a welding device, a hoisting device 15, a chassis, a leg device 14, and a slewing device 13; wherein, the loading platform 11 includes a chassis, a vehicle frame, and related systems and accessories. The related systems and accessories include a power system 18, a hydraulic system 19, and an electrical system 2, etc.; the chassis 12 includes a traveling steel wheel device 1122 and a crawler traveling device 1121. The combined railway and highway rail welding equipment realizes the traveling switch between the railway and the flat road surface through the traveling steel wheel device 1122 and the crawler traveling device 1121, so that the rail welding equipment can travel to positions inside the turnout, the frog between the rails, the switch rail, etc. for rail welding, and is suitable for complex working conditions. Above the vehicle frame 111, a cab, an electrical room, a power system 18, and a hydraulic system 19 are integrated. The hydraulic system 19 is respectively connected to the traveling steel wheel device 1122, the crawler traveling device 1121, and the welding device to provide hydraulic power. The electrical system 2 is respectively connected to the welding device, the power system 18, and the hydraulic system 19 for electrical control. The hoisting device 15 is used to hoist the welding machine 17 and can assist in supporting the whole machine under uphill and downhill slopes or other harsh working conditions, improving the flexibility and cross-country ability of the whole machine. The cables of the welding machine 17 can adopt an automatic cable retracting and releasing device or the cables are arranged along the boom of the cable retracting and releasing device, and a quick-connect joint is adopted for cable connection during connection.

[0115] Based on the situation that the traveling operation of the combined railway and highway requires frequent switching between the traveling steel wheels and the crawlers, during the switching process, the welding machine 17 will shake or tilt to a certain extent due to the switching action and the center of gravity problem. When the working condition is relatively complex, the shaking of the welding machine 17 is likely to cause friction or collision with other equipment or the ground, causing damage to the welding machine 17 and affecting the normal service life of the welding machine 17.

[0116] To solve the above technical problems, the welding device of the present application includes a welding machine 17 and an auxiliary protection device 16. The welding machine 17 is used for welding rails, and the auxiliary protection device 16 is detachably sleeved outside the welding machine 17. By additionally providing the auxiliary protection device 16 to protect the welding machine 17, it is possible to prevent the welding machine 17 from rubbing or colliding with external devices during the running and switching process of the rail welding equipment. Specifically, one end of the hoisting device 15 is hinged to the vehicle frame 111, and the other end is connected to the welding device, and is used to hoist and drive the welding device to the working position or onto the vehicle frame 111. Preferably, the hoisting device 15 indirectly hoists the welding machine 17 through the hoisting auxiliary protection device 16 to further improve the stability during the hoisting process and reduce the occurrence of shaking or tilting during welding. The auxiliary protection device 16 is preferably arranged at the end of the hoisting device 15 and is sleeved outside the welding part, and is quickly disassembled from the welding machine 17 and the hoisting device 15. The hoisting device 15 is used to protect the welding machine 17 and can be used to assist in supporting the whole machine during up and down the track and large-angle turning. When the whole machine reaches the operation area, the auxiliary device can be quickly removed to facilitate the welding work of the welding machine 17. The hydraulic system 19 is provided with an emergency pump, which can perform emergency operations or emergency vehicle recovery when the pump station fails.

[0117] The power system 18 includes a charger, a battery, an electrical control cabinet, and a generator. The charger is connected to an external power source and charges the battery. The voltage of the battery is the voltage available for the welding machine 17 system and the hydraulic system 19. Usually, the battery is charged through the charger connected to the external power source. When it is inconvenient to connect to the external power source for charging and there is a construction requirement, the battery can be charged by the generator.

[0118] In this embodiment, the auxiliary protection device 16 includes an auxiliary support frame 161 and a welding machine protection frame 162. Among them, the auxiliary support frame 161 is fixedly arranged above the welding machine 17 and is used to be fixed to the hoisting device 15. The auxiliary support frame 161 and the hoisting device 15 are detachably and fixedly connected for easy disassembly and assembly. The auxiliary support frame 161 is a rectangular frame, and the rectangular frame is provided with reinforcing ribs and mounting seats. One end of the mounting seat is detachably and fixedly connected to the hoisting device 15, and the other end is detachably and fixedly connected to the welding machine 17. By setting the mounting seat, the installation area of the hoisting device 15 and the welding machine 17 is increased, making the installation firm and improving the stability during hoisting. In order to further protect the welding machine 17, a welding machine protection frame 162 is sleeved on the outer periphery of the welding machine 17 to protect the circumference of the welding machine 17 and further improve the protection strength. In this embodiment, the top of the welding machine protection frame 162 and the auxiliary support frame 161 are detachably and fixedly connected through a quick connector 163, and / or the bottom of the welding protection frame and the welding machine 17 are detachably and fixedly connected through a quick connector 163. The welding protection frame is arranged as a cuboid frame structure, including a top frame, a bottom frame and 4 columns. The top frame is fixed to the auxiliary support frame 161 through a quick connector 163, and the bottom frame is also fixed to the welding machine 17 by using a quick connector 163. It can be understood that the two parts of the quick connector 163 are respectively arranged on the top frame, the auxiliary support frame 161, the bottom frame and the welding machine 17, so as to achieve quick-release fixation.

[0119] Specifically, two quick connectors 163 are respectively arranged on a set of opposite sides of the auxiliary support frame 161 and the welding machine protection frame 162 to achieve quick disassembly of the auxiliary support frame 161 and the welding machine protection frame 162.

[0120] In order to further position the welding machine 17, a set of oppositely arranged limiting bosses are provided on the bottom wall of the welding machine protection frame 162. The limiting bosses and the bottom wall of the welding protection frame form a limiting space for limiting the welding machine 17. The opposite side walls of the limiting bosses are inclined side walls, so that the limiting space forms a trapezoid that gradually shrinks from top to bottom. The top is convenient for aligning with the welding machine 17, and the bottom realizes the positioning of the welding machine 17. For the quick connector 163 arranged between the bottom of the welding protection frame and the welding machine protection frame 162, it is preferably arranged on the limiting bosses to keep the bottom of the welding machine 17 fixed to the welding machine protection frame 162.

[0121] In another embodiment, in order to facilitate the installation and positioning of the auxiliary support frame 161 and the welding machine guard frame 162, positioning holes are respectively set on the auxiliary support frame 161 and the welding machine guard frame 162. It can be understood that the positioning holes penetrate the auxiliary support frame 161 and the welding machine guard frame 162 respectively along the wall thickness direction, and the two are pre-positioned by the positioning holes and the positioning pins 164, so as to facilitate the subsequent installation of the quick connector 163. Preferably, the positioning holes are respectively set along the diagonal directions of the auxiliary support frame 161 and the welding machine guard frame 162, which is convenient for positioning and increases the strength of the welding machine guard frame 162 during driving.

[0122] Among them, the rotating device 13 connects the chassis 112 and the frame 111. One end of the rotating device 13 is fixedly connected to the chassis 112, and the other end is fixedly connected to the frame 111. It is used to drive the frame 111 to rotate around the vertical axis to achieve a rotating action, so that the frame 111 can rotate relative to the chassis 112, perform flexible steering, and expand the operating range of the equipment.

[0123] There are at least two groups of running steel wheel devices 1122, and there are also at least two groups of crawler running devices 1121. Any group of running steel wheel devices 1122 is movably connected to the chassis 112, and is used to drive the road-rail dual-purpose welding rail equipment to run on the railway; two groups of crawler running devices 1121 are arranged side by side on the lateral sides of the chassis 112, and are used to drive the road-rail dual-purpose welding rail equipment to run on the road; wherein, when the crawler running device 1121 runs on the road, the running steel wheel device 1122 is lifted up and separated from the road surface; when the running steel wheel device 1122 runs on the railway, the running steel wheel device 1122 falls down to support the rail surface, and causes the crawler running device 1121 to be lifted up and separated from the road surface. In this embodiment, the switching between the crawler traveling device 1121 and the running steel wheel device 1122 can be realized specifically through the switching device 11221. One end of the switching device 11221 is connected to the chassis 112, and the other end is connected to the running steel wheel device 1122. It is used to adjust the vertical position of the running steel wheel device 1122 relative to the crawler traveling device 1121. When the running steel wheel device 1122 is lower than the crawler traveling device 1121, the running steel wheel device 1122 contacts the ground and runs on the track surface; when the switching device 11221 drives the running steel wheel device 1122 to move upward, and the running steel wheel device 1122 is higher than the crawler traveling device 1121, the crawler traveling device 1121 contacts the ground and runs on the road surface; thereby, the switching between highway and railway running can be realized. The switching device 11221 can be specifically set as a cylinder or an oil cylinder, and can be set according to the existing technology, which will not be repeated here.

[0124] To improve the stability of the equipment, it further includes outrigger devices 14. At least one set of outrigger devices 14 is respectively provided on the outer sides of the crawler traveling devices 1121 on both lateral sides. Preferably, two sets of outrigger devices 14 are provided on the crawler traveling devices 1121, and the two sets of support devices are arranged oppositely along the longitudinal direction. Any set of outrigger devices 14 includes an outrigger mounting frame and an outrigger; the first end of the outrigger mounting frame is rotatably connected to the crawler traveling device 1121, driving the second end of the outrigger mounting frame to rotate in the horizontal plane; the outrigger is located at the second end of the outrigger mounting frame, and the outrigger can move vertically to support the rail and road dual-purpose rail welding equipment.

[0125] The first end of the outrigger mounting frame is rotatably connected to the crawler traveling device 1121 through a rotating shaft, driving the second end of the outrigger mounting frame to rotate in the horizontal plane, and the rotation angle is 0 - 180°, preferably 90°. In other embodiments, the rotation angle can be adjusted according to the actual working conditions and usage requirements, so that the outrigger mounting frame and the crawler traveling device 1121 are vertically arranged to improve the support stability. The outrigger is located at the second end of the outrigger mounting frame far from the crawler traveling device 1121, and the outrigger can move vertically up and down to contact the ground to support the equipment; thus arranged, when the equipment moves to the welding position of the rail, the outrigger device 14 is released to support the equipment, improving the stability during the operation process, preventing the situation of shaking or tilting due to unstable center of gravity during the movement of the hoisting welder 17, and at the same time further ensuring the stability of the equipment during the operation of the welder 17, reducing the influence on the operation of the welder 17, and indirectly improving the welding accuracy.

[0126] In an optional embodiment, for the structure of the outrigger, it includes an outrigger guide sleeve 141, a lifting oil cylinder, and a guide post 142. The outrigger guide sleeve 141 is provided at the second end of the outrigger mounting frame. The lifting oil cylinder is located inside the outrigger guide sleeve 141, and the fixed end of the lifting oil cylinder is connected to the outrigger guide sleeve 141. The piston rod of the lifting oil cylinder is fixedly connected to the guide post 142, and the guide post 142 is used to support the ground.

[0127] The outrigger mounting frame includes an outrigger mounting frame body 143 and a sliding telescopic part 144. The outrigger mounting frame body 143 is rotatably connected to the crawler traveling device 1121; the sliding telescopic part 144 is slidably connected to the second end of the outrigger mounting frame body 143 and can move along the length direction of the outrigger mounting frame body 143, and the outrigger is provided on the sliding telescopic part 144. Preferably, an oil cylinder is provided between the outrigger mounting frame body 143 and the sliding telescopic part 144 to realize the sliding of the sliding telescopic part 144 relative to the outrigger mounting frame body 143.

[0128] The specific outrigger support process is as follows: when the dual-purpose rail welding equipment for road and rail travels to the preset position, the outrigger mounting frame is driven to rotate outward 90° around the crawler traveling device 1121 and stop, and then the sliding telescopic portion 144 is driven to extend a preset distance relative to the outrigger mounting frame body 143 and then stop; the lifting cylinder of the outrigger is driven to move, and the guide column 142 is driven to move downward until it contacts the ground to support the equipment, so as to ensure the stability of the equipment during operation; when it is necessary to recover the outrigger, the lifting cylinder is first driven to recover the guide column 142 to the preset position, and then the sliding telescopic portion 144 is driven to retreat to the preset position relative to the outrigger mounting frame body 143, and then the support leg mounting frame is driven to rotate inward to the preset position relative to the crawler traveling device 1121 to realize the recovery of the support.

[0129] It should be noted that the lifting device 15 includes a telescopic boom 151 and a conversion joint 152. One end of the telescopic boom 151 is hinged to the frame 111, and the other end is detachably fixedly connected to the auxiliary support frame 161 via the conversion joint 152. The auxiliary support frame 161 is used to increase the force area when lifting the welding machine 17, thereby improving the stability of the lifting.

[0130] The specific construction process includes:

[0131] S1: The dual-purpose rail welding equipment 1 is self-propelled by crawler tracks and is assembled with the vehicle loaded with turnout components and driven into the pre-laying location;

[0132] S2: When climbing a slope or making a large turn, the retracting and releasing device cooperates with the auxiliary device to support the whole machine. The road-rail dual-purpose rail welding equipment 1 walks on the track by crawler walking, switches to walking by steel wheels by the switching device 11221, and walks to the vicinity of the welding position by steel wheels;

[0133] S3 The arm of the retractable device is lifted, and the auxiliary protection device 16 and the welding machine 17 are lifted to the welding position. The welding machine guard frame 162 on the auxiliary protection device 16 is quickly removed through the quick connector 163, and the welding machine 17 cable is connected.

[0134] S4: The lifting arm of the lifting device 15 lifts the welding machine 17 to the welding rail to perform welding operation;

[0135] S5: After the welding is completed, the welding machine guard frame 162 is installed through the quick connector 163;

[0136] Working condition 1: In the same set of turnouts:

[0137] If another welding point is not far away and there is a rail connection between the welding points, the rail welding equipment moves to the next welding point through the steel wheel and repeats S3 to S5 to perform welding work (within the same set of turnouts);

[0138] Working condition 2: Multiple sets of turnouts are laid flat on the line:

[0139] If the other welding point is slightly far away and there is no direct rail between the welding points, the road-rail dual-purpose rail welding equipment switches to crawler travel through the switching device 11221, travels to the vicinity of the next welding position through the crawler, and repeats S2 to S5 to perform welding work (between switches);

[0140] S6: After the welding is completed, the welding machine guard frame 162 is installed through the quick connector 163;

[0141] S7: The road-rail dual-purpose rail welding equipment automatically leaves the working area.

[0142] The above-mentioned dual-purpose rail welding equipment adopts auxiliary protection device 16 to protect welding machine 17 and provide auxiliary support for the whole machine. The dual-purpose rail welding equipment adopts dual-purpose rail welding chassis 112, which has strong adaptability, flexible steering, good impact resistance of the whole machine and high welding quality; the dual-purpose rail welding equipment has a simple process before arriving at the welding position, which is convenient and trouble-free; the dual-purpose rail welding equipment is simple and flexible, reduces the labor intensity of manual labor, and has high safety.

[0143] The present application also provides an operating method of a road-rail dual-purpose rail welding device, comprising:

[0144] Drive the road-rail dual-purpose running device to the preset position, drive the outrigger device to rotate outward around the crawler running device to a preset angle, then stop and support the equipment;

[0145] The hoisting device lifts the welding device to the working position, removes the auxiliary protection device, connects the welding machine cable, and uses the hoisting device to move the welding machine to the welding rail for welding operations.

[0146] Although the preferred embodiments of the present application have been described, those skilled in the art may make other 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 falling within the scope of the present application.

[0147] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A rail welding equipment for both road and rail, characterized in that: include: The loading platform includes a chassis, a frame, and related systems and accessories. The chassis is located below the frame and is used to drive the dual-purpose rail welding equipment to travel on a railway or a highway. A welding device, comprising a welding machine, a rail lifting device and an auxiliary protection device, wherein the welding machine is used for welding steel rails, the auxiliary protection device cover is arranged outside the welding machine, and the rail lifting device is located on the auxiliary protection device and is used for lifting the steel rail to butt with the welding machine; A hoisting device has one end rotatably connected to the vehicle frame and the other end connected to the welding device, and is used for hoisting and driving the welding device to move.

2. The rail welding equipment for road and rail according to claim 1, characterized in that: The auxiliary protection device comprises: A welding machine protection frame, which is arranged on the outer periphery of the welding machine and is detachably fixedly connected to the lifting device; A plurality of guard frame legs are all located below the welding machine guard frame and are used to auxiliary support the road-rail dual-purpose rail welding equipment.

3. The rail welding equipment for road and rail according to claim 2, characterized in that: The auxiliary protection device also includes: At least one group of frame guard steel wheels are located below the welding machine frame and are used to drive the welding machine device to travel on the rails; any group of frame guard steel wheels includes two frame guard steel wheels that are arranged opposite to each other in the transverse direction.

4. The rail welding equipment for road and rail according to claim 3, characterized in that: The welding machine guard frame comprises a top guard frame, a bottom guard frame and a plurality of connecting frames, and the upper and lower ends of any connecting frame are respectively fixed to the top guard frame and the bottom guard frame.

5. The rail welding equipment for road and rail according to claim 1, characterized in that: Also includes: At least two groups of leg devices, each group of the leg devices is located on the frame and arranged longitudinally; each group of the leg devices includes two leg devices arranged on two lateral sides of the frame; Any of the leg devices comprises a transverse telescopic leg and a vertical lifting leg, the fixed end of the transverse telescopic leg is connected to the frame, and the movable end of the transverse telescopic leg can be telescopically moved in the transverse direction relative to the frame; The fixed end of the vertical lifting leg is fixed to the movable end of the transverse telescopic leg, and the movable end of the vertical lifting leg is used to support the ground.

6. The rail welding equipment for road and rail according to claim 1, characterized in that: Also includes: A slewing device, one end of which is fixedly connected to the vehicle frame, and the other end of which is hinged to the hoisting device, is used to drive the hoisting device to rotate around a vertical axis.

7. The rail welding equipment for road and rail according to claim 1, characterized in that: The hoisting device comprises a telescopic boom and a quick-change joint. One end of the telescopic boom is hinged to the slewing device, and the other end is detachably fixedly connected to the welding machine guard frame via the quick-change joint.

8. The rail welding equipment for road and rail according to claim 1, characterized in that: The chassis comprises: At least two sets of running steel wheel devices, any one set of the running steel wheel devices is movably connected to the chassis, and is used to drive the road-rail dual-purpose rail welding equipment to run on the railway; At least two sets of crawler travel devices are arranged side by side on the lateral sides of the chassis, and are used to drive the road-rail dual-purpose rail welding equipment to travel on a flat road surface or rails; Among them, when the crawler traveling device runs on a flat road, the running steel wheel device rises and leaves the road surface; when the running steel wheel device runs on a railway, the running steel wheel device falls on the rail surface for support, and the crawler traveling device rises and leaves the rail surface.

9. The rail welding equipment for road and rail according to claim 1, characterized in that: Also includes: A hydraulic system is located on the frame, and the hydraulic system is respectively connected to the traveling steel wheel device, the crawler traveling device, the hoisting device, the welding device, and the rotating device to provide hydraulic power; The electrical system is located on the frame and is respectively connected to the traveling steel wheel device, the crawler traveling device, the hoisting device, the welding device and the rotating device for electrical control.

10. An operating method using the road-rail dual-purpose rail welding equipment according to any one of claims 1 to 9, characterized in that: The method comprises: Drive the traveling steel wheel device and / or the crawler traveling device to a preset position, drive the transverse telescopic legs to extend transversely, and drive the vertical lifting legs to descend vertically to support the road-rail dual-purpose rail welding equipment; Drive the hoisting device to lift the welding device and the rotating device to rotate a preset angle, and rotate the welding device down to a working position; The rail lifting device is driven to lift the rail to be welded to the jaws of the welding machine, and the welding machine performs welding operation; After the welding operation is completed, the hoisting device is driven to lift the welding device, and the rotating device is driven to rotate to a preset position; The loading platform moves on the rails through the running steel wheel device, and the welding device moves on the rails through the frame guard steel wheel.

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