Highway-railway rail welding vehicle for rail welding operation

Abstract

According to the highway-railway dual-purpose rail welding vehicle for steel rail welding operation, a vehicle frame above a crawler-type telescopic chassis is fixedly connected with the center of a first swing mechanism in the middle of the upper end face of the crawler-type telescopic chassis, a working device and an operation room are arranged at the left end of the upper end face of the vehicle frame, and a retracting and releasing device is arranged at the right end of the upper end face of the vehicle frame and connected with a welding device; the welding device is unfolded in use and folded on the frame after use under the control of the folding and unfolding device, and a vehicle body connected with a control button in the operation room is arranged in the middle of the upper end face of the frame. Before operation, the lifting type driving wheel pair and the lifting type driven wheel are matched with the steel rail to support the whole vehicle, a supporting condition is provided for the crawler walking device to extend out of the steel rail, the welding equipment is unfolded and hoisted to a welding position when used and folded and stored when not used, the cost is low, maneuverability and flexibility are achieved, operation is high in quality and high in efficiency, and the working efficiency is improved. The number of steel rail welding operators is reduced, the steel rail welding operation quality and operation efficiency are improved, and the welding equipment is high in self-adaptive capacity.

Description

Technical Field

[0001] The utility model belongs to the technical field of railway line maintenance, and in particular relates to a road-rail dual-purpose rail welding vehicle for rail welding operations. Background Art

[0002] Modern railway transportation is developing towards high speeds, heavy loads, and large volumes. Seamless lines are increasingly being used. Seamless lines eliminate the welded rail joints found on conventional lines, reducing train shock and vibration and extending the service life of wheel and rail components. A pressing issue facing the construction of seamless railways is the various rail welding issues. Therefore, rail welding technology is key to achieving high-speed, heavy-load, large-volume, and safer railway transportation. Rail welding technology is also required for routine maintenance and repair of existing railways. For example, if a rail breaks on an existing line, a short rail must be inserted and re-welded to permanently fix the problem.

[0003] At present, there are three main methods commonly used for domestic railway rail welding: flash welding, pneumatic welding, and thermite welding. Flash welding is further divided into fixed and mobile methods. Fixed flash welding is mainly used for in-factory rail welding, while mobile flash welding, pneumatic welding, and thermite welding are mainly used for on-site rail welding. Mobile flash welding is characterized by high efficiency and high quality and is currently the most widely used rail welding method. However, mobile flash welding often requires the deployment of large self-propelled rail welding vehicles or railcar-towed containerized rail welding vehicles for rail welding operations. The equipment is costly and has weak adaptability, and is mainly used on mainline railways. Pneumatic welding has the characteristics of low equipment cost, fast welding speed, and good welding quality. However, it has very strict requirements for joint cross-section preparation before welding, and the welding process is easily affected by the environment and the operator's operating level. The joint quality fluctuates greatly and is difficult to control. It is generally only used as a supplement to flash welding and is used for welding joints during on-site laying of long rails or for welding joints on seamless lines across sections. Thermite welding equipment is simple and easy to operate, making it very suitable for repairing broken rails and welding rails in switch areas with limited space. However, its welding strength is low, the quality is unstable, the breakage rate is high, and the overall performance is poor.

[0004] Based on the shortcomings of large-scale rail welding vehicles in mainline rail welding operations, such as high equipment cost, weak adaptability, low flexibility, and low strength and unstable quality of rail welding in the switch area, it is necessary to design a dual-purpose rail welding vehicle for rail welding operations that can perform rail welding operations both on the mainline and in the switch area, based on flash welding, and has the characteristics of low equipment cost, flexibility, high quality and high efficiency. In this way, the number of railway switch rail welding operators can be reduced, the quality and efficiency of rail welding operations can be improved, and the safety hazards of railway operation can be reduced. Utility Model Content

[0005] The technical problem solved by the utility model is as follows: a road-rail dual-purpose rail welding vehicle for rail welding operations is provided, which adopts a crawler-type telescopic chassis connected to a crawler traveling device, providing conditions for adjusting the width of the crawler traveling devices on both sides, and by arranging a lifting active wheel pair and a lifting driven wheel pair at both ends of the crawler-type telescopic chassis, the lifting active wheel pair and the lifting driven wheel cooperate with the rails to support the entire vehicle before operation, thereby providing support conditions for the crawler traveling device to extend beyond the rails, and by arranging a retractable device to control the welding equipment to be unfolded and hoisted to the welding position when in use and folded and stored when not in use. The utility model has a compact structure and stable transportation, and has the advantages of low equipment cost, maneuverability, high quality and high efficiency of operation, which can reduce the number of railway turnout rail welding operators, improve the quality and efficiency of rail welding operations, reduce railway driving safety hazards, can quickly hoist the welding equipment to the welding location, and has strong adaptability.

[0006] The technical solution adopted by the utility model is a dual-purpose rail welding vehicle for rail welding operations, comprising a crawler telescopic chassis with crawler walking devices installed at the front and rear telescopic ends, and a lifting active wheel pair and a lifting driven wheel pair respectively installed at the left and right ends of the crawler telescopic chassis and located outside the ends of the crawler walking devices. The frame above the crawler telescopic chassis is centrally fixedly connected to a slewing mechanism in the middle of the upper end surface of the crawler telescopic chassis, and rail-aligning devices for adjusting the relative position of the whole vehicle and the track are installed at the left and right ends of the bottom surface of the frame. A working device and an operating room are provided at the left end of the upper end surface of the frame, and a retracting device is provided at the right end of the upper end surface of the frame. The retracting device is connected to the welding device, and the welding device is unfolded when in use and retracted on the frame after use under the control of the retracting device. The middle of the upper end surface of the frame is provided with a body connected to the control button in the operating room.

[0007] In which, the retracting and extending device includes a movable seat connected to the guide drive device on the crawler telescopic chassis, a bracket 1 fixed to the upper end surface of the movable seat, a first oil cylinder and a bracket 2 arranged on the two long sides of the bracket 1, one end of the first oil cylinder is hinged to the left end of the long side of the bracket 1, and the right end of the first connecting rod and the left end of the second connecting rod are both hinged to the telescopic end of the first oil cylinder on the same side, the left end of the first connecting rod is hinged to the bracket 1, and the right end of the second connecting rod is hinged to the bracket 2, the bracket 2 is a U-shaped frame structure arranged with an opening toward the movable seat, and the two ends of the left end of the bracket 2 are hinged to the outer side of the right end of the bracket 1, and the hinge position of the bracket 2 and the bracket 1 is to the right of the hinge position of the first connecting rod and the bracket 1. The second support is controlled by the telescopic piston rod of the first oil cylinder to realize the expansion or folding of the second support after rotating around the hinge position of the first support. The right end of the second support is an L-shaped structure protruding vertically upward. A telescopic bracket adapted to its long side guide is provided on the right side of the second support, and a third oil cylinder is provided on the outer walls of the two long sides of the second support. The piston end of the third oil cylinder is connected to the right end of the outer wall on the same side of the telescopic bracket, and the telescopic bracket is extended or retracted under the telescopic drive of the third oil cylinder. The middle part of the right end of the telescopic bracket is hinged to the welding device through the second rotary mechanism, and the welding device is retracted and stored or expanded for use after bypassing the middle part of the second support under the joint action of the first oil cylinder and the third oil cylinder.

[0008] Furthermore, the guide drive device includes a guide seat and a second oil cylinder. The guide seat is fixed to the upper end surface of the crawler telescopic chassis, and the bottom of the movable seat is adapted to the two long side guides of the guide seat. The upper end surface of the crawler telescopic chassis is provided with two second oil cylinders respectively located on the inner sides of the long sides of the guide seat, and the piston end of the second oil cylinder is connected to the left end portion of the movable seat, and the movable seat is extended or retracted along the length direction of the guide seat under the drive of the second oil cylinder.

[0009] Furthermore, a rotating mechanism three is provided in the middle of the upper end surface of the movable seat for rotating and adjusting the position of the welding device in the folded storage state.

[0010] Furthermore, the crawler telescopic chassis includes an axle and a crawler telescopic cylinder. Two sets of crawler telescopic cylinders are symmetrically installed on the front and rear side walls of the axle, and the piston ends of the two sets of crawler telescopic cylinders are fixedly connected to the crawler walking devices. The distance between the crawler walking devices on both sides can be adjusted by driving the two sets of crawler telescopic cylinders on the front and rear sides of the axle.

[0011] Furthermore, the lifting type driving wheelset and the lifting type driven wheelset both include a wheel frame and two groups of lifting cylinders arranged at the left and right ends of the axle, one end of the two groups of lifting cylinders is symmetrically hinged to the end of the axle, the wheel frame has a T-shaped structure, the piston rod ends of the two groups of lifting cylinders are hinged to the transverse frame at the outer end of the wheel frame, and both ends of the transverse frame of the wheel frame are provided with wheelsets adapted to the rails, the longitudinal frame ends of the wheel frame are hinged to the axle, and under the drive of the lifting cylinder, the wheelset is lowered to adapted contact with the rails or raised to be separated from the rails.

[0012] The jacking oil cylinder of described upper end portion is hinged on the jacking oil cylinder of lower end portion and the lower end of jacking oil cylinder of lower end portion, and the jacking oil cylinder of lower end portion is hinged on the jacking oil cylinder of lower end portion at the bottom of jacking oil cylinder.

[0013] Furthermore, an outwardly protruding plug plate is provided on the inner side wall of the jacking block, and when the jacking cylinder swings to a horizontal position, the plug plate with a through hole is sleeved on the convex column of the support seat during the process of the jacking cylinder piston rod being in place, and the anti-detachment connection of the jacking block to the bottom of the frame is realized by a pin inserted on the convex column.

[0014] Furthermore, the crawler-type telescopic chassis, working device, retractable device, slewing mechanism 1, lifting active wheel pair and lifting driven wheel pair are all connected to the control cabinet, and the actions of the crawler-type telescopic chassis, working device, retractable device, slewing mechanism 1, lifting active wheel pair and lifting driven wheel pair are all controlled to start and stop through the operating room.

[0015] Furthermore, the vehicle body includes a fuel tank, a generator set, a hydraulic station, an electrical control cabinet and a water cooler. The operating room is used for the operator to control the entire vehicle to perform operations. The fuel tank is used to store fuel. The generator set is used to supply power to the entire vehicle and the welding device when they are working. The hydraulic station is used to provide power to the hydraulic components of the entire vehicle. The electrical control cabinet is used to control the welding device to perform welding operations. The water cooler is used to cool the generator set when it is working.

[0016] The advantages of this utility model compared with the prior art are:

[0017] 1. This technical solution uses a crawler-type telescopic chassis connected to a crawler traveling device, providing conditions for adjusting the width of the crawler traveling devices on both sides. By arranging a lifting driving wheel set and a lifting driven wheel set at both ends of the crawler-type telescopic chassis, the lifting driving wheel set and the lifting driven wheel cooperate with the rails to support the entire vehicle before operation, thereby providing support conditions for the crawler traveling device to extend beyond the rails.

[0018] 2. This technical solution uses a retractable device to control the welding equipment to unfold and lift it to the welding position when in use, and fold it for storage when not in use. It has a compact structure and stable transportation. It can quickly lift the welding equipment to the welding location and has strong adaptability.

[0019] 3. The setting of the rail alignment device in this technical solution effectively avoids the friction adjustment of the crawler running device on the rail when the vehicle position is adjusted, ensures the quality of the rail and crawler running device, and improves the efficiency and accuracy of rail alignment;

[0020] 4. This technical solution has a reasonable structural design, convenient and quick operation, low equipment cost, flexibility, high-quality and efficient operation, which can reduce the number of railway turnout rail welding operators, improve the quality and efficiency of rail welding operations, and reduce railway driving safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is the main view of the retractable device of the utility model when it is unfolded;

[0023] Figure 3 This is a top view of the retractable device of the utility model when it is unfolded;

[0024] Figure 4 This is a front view of the retractable device of the utility model when folded;

[0025] Figure 5 This is a top view of the retractable device of the utility model when folded;

[0026] Figure 6 This is a schematic diagram of the crawler-type telescopic chassis of the utility model when it is unfolded and widened;

[0027] Figure 7 This is a schematic diagram of the crawler-type telescopic chassis of the utility model when it is retracted and narrowed;

[0028] Figure 8 This is a schematic diagram of the state of the lifting driving wheelset and the lifting driven wheelset of the utility model when they are dropped and adapted to the rails;

[0029] Figure 9This is a schematic diagram of the state when the lifting driving wheelset and the lifting driven wheelset of the utility model are lifted and separated from the rails;

[0030] Figure 10 This is a schematic diagram of the vehicle body structure of the present utility model;

[0031] Figure 11 This is a schematic diagram of the planar structure of the utility model;

[0032] Figure 12 This is a schematic diagram of the use state of the rail alignment device of the utility model when it is in contact with the rail;

[0033] Figure 13 This is a schematic diagram of the storage state of the rail alignment device of the utility model when it is separated from the rail. DETAILED DESCRIPTION

[0034] The following is a combination of the embodiments of the present invention Figure 1-13 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0035] It should be noted that, in this document, unless otherwise stated, it should be understood that the terms "center," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate positions or relationships based on those shown in the accompanying drawings. These are intended only to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] As used herein, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.

[0037] Rail welding vehicles for rail welding operations, such as Figure 1-13As shown, it includes a crawler telescopic chassis 1 with crawler walking devices 12 installed at the front and rear telescopic ends, and a lifting active wheel pair 2 and a lifting driven wheel pair 3 respectively installed at the left and right ends of the crawler telescopic chassis 1 and located outside the ends of the crawler walking device 12. The frame 4 above the crawler telescopic chassis 1 is centrally connected to the rotary mechanism 5 in the middle of the upper end surface of the crawler telescopic chassis 1. The left and right ends of the bottom surface of the frame 4 are both installed with a rail alignment device 15 for adjusting the relative position of the whole vehicle and the track. The left end of the upper end surface of the frame 4 A working device 13 and an operating room 6 are provided, and a retractable device 7 is provided at the right end of the upper end surface of the frame 4. The retractable device 7 is connected to the welding device 8, and the welding device 8 is unfolded when in use and retracted on the frame 4 after use under the control of the retractable device 7. A body 14 connected to the control button in the operating room 6 is provided in the middle of the upper end surface of the frame 4; in the above structure, a crawler-type telescopic chassis 1 is connected to the crawler walking device 12 to provide conditions for adjusting the width of the crawler walking device 12 on both sides, and by A lifting active wheel pair 2 and a lifting driven wheel pair 3 are set at both ends of the telescopic chassis 1, so that the lifting active wheel pair 2 and the lifting driven wheel 3 can support the entire vehicle in cooperation with the rails before operation, thereby providing support conditions for the crawler walking device 12 to extend beyond the rails; the setting of the retractable device 7 connected to the welding equipment 8 can perform rail flash welding both on the main line and in the turnout area, and can also take into account online and offline operations. Compared with the existing large-scale rail welding vehicles and the manual + small machine mode for rail welding operations, the vehicle has the advantages of low equipment cost, simple operation, and flexible equipment. At present, the turnout rail welding operation mainly adopts the thermite welding method, which can reduce the number of on-site operators, reduce the intensity of operation, improve the quality of rail welding, and reduce the safety hazards of railway driving; wherein, the working device 13 is mainly composed of an operating arm and a bucket. The operating arm adopts a three-section arm structure, which can ensure that it has a larger working range (this work refers to work other than rail welding operation, such as excavation, lifting, etc.) under the condition of ensuring the safety limit during operation, and the bucket is used for excavation and other operations.

[0038] like Figure 2-5As shown, the specific structure of the retracting and extending device 7 is as follows: the retracting and extending device 7 includes a movable seat 7-1 connected to the guide drive device on the crawler telescopic chassis 1, a bracket 7-2 fixed to the upper end surface of the movable seat 7-1, a first oil cylinder 7-3 and a bracket 2 7-6 provided on the two long sides of the bracket 1 7-2, one end of the first oil cylinder 7-3 is hinged to the left end of the long side of the bracket 1 7-2, and the right end of the first connecting rod 7-4 and the left end of the second connecting rod 7-5 are both hinged to the telescopic end of the first oil cylinder 7-3 on the same side, the left end of the first connecting rod 7-4 is hinged to the bracket 1 7-2, and the right end of the second connecting rod 7-5 is hinged to the bracket 2 7-6 The support 2 7-6 is hinged, and the two ends of the left end of the support 2 7-6 are hinged to the outer side of the right end of the bracket 1 7-2. The hinge position of the support 2 7-6 and the bracket 1 7-2 is on the right side of the hinge position of the first connecting rod 7-4 and the bracket 1 7-2. The support 2 7-6 is controlled by the telescopic control of the piston rod of the first oil cylinder 7-3 to realize the expansion or folding of the support 2 7-6 after rotating around the hinge position of the bracket 1 7-2. The right end of the support 2 7-6 is an L-shaped structure protruding vertically upward. The right side of the support 2 7-6 is provided with a telescopic bracket 7 adapted to its long side guide. -9, and a third oil cylinder 7-10 is provided on the outer wall of the two long sides of the support 2 7-6, that is, the sliding block on the corresponding side of the telescopic bracket 7-9 is adapted to be connected with the guide groove at the corresponding position on the right side of the support 2 7-6, thereby increasing the working range of the welding equipment 8; the piston end of the third oil cylinder 7-10 is connected to the right end of the outer wall on the same side of the telescopic bracket 7-9, and the telescopic bracket 7-9 is extended or retracted under the telescopic drive of the third oil cylinder 7-10, and the middle part of the right end of the telescopic bracket 7-9 is hinged to the welding device 8 through the rotary mechanism 2 7-11, and the welding device 8 is able to bypass the support 2 under the joint action of the first oil cylinder 7-3 and the third oil cylinder 7-10. The welding device 8 can be retracted and stored after the middle part of 7-6 or unfolded for use; in the above structure, the welding device 8 is unfolded and hoisted to the welding position when in use by setting a retracting device 7, and folded and stored when not in use. The structure is compact and stable in transportation. The welding device 8 can be quickly hoisted to the welding location, and the welding device 8 has strong adaptability; wherein, the welding device 8 is a flash welder; when working, the vehicle puts the welding device 8 from the vehicle to the welding location through the retracting device 7, and retracts the welding device 8 back to the vehicle through the retracting device 7 after the operation is completed; this solution adopts a double-arm lifting structure to control the lifting and lowering of the welding device 8, which makes it easier and more precise to operate the rails when welding the rails. The upper and lower ends of the slewing mechanism 2 7-11 are rotatably connected to the telescopic bracket 7-9 and the welding device 8 respectively, which can ensure that the welding device 8 is automatically leveled under uneven line conditions such as super-elevated curves, so that the welding device 8 always remains in a vertical state to avoid affecting its operation;

[0039] like Figure 5As shown, the specific structure of the guide drive device is as follows: the guide drive device includes a guide seat 7-7 and a second oil cylinder 7-8, the guide seat 7-7 is fixed to the upper end surface of the crawler telescopic chassis 1, and the bottom of the movable seat 7-1 is adapted to the two long side guides of the guide seat 7-7, the upper end surface of the crawler telescopic chassis 1 is provided with two second oil cylinders 7-8 respectively located on the inner sides of the long sides of the guide seat 7-7, and the piston end of the second oil cylinder 7-8 is connected to the left end portion of the movable seat 7-1, and under the drive of the second oil cylinder 7-8, the movable seat 7-1 is extended or retracted along the length direction of the guide seat 7-7; specifically, the middle part of the upper end surface of the movable seat 7-1 is provided with a rotating mechanism three 7-12 for rotating and adjusting the welding device 8 in the folded storage state; with the above structure, through the extension and retraction of the second oil cylinder 7-8, the movable seat 7-1 can drive the support two 7-6 and the welding device 8 as a whole to extend or retract, thereby increasing the deployment stroke of the welding device 8.

[0040] like Figure 6-7 As shown, the specific structure of the crawler telescopic chassis 1 is as follows: the crawler telescopic chassis 1 includes an axle 1-1 and a crawler telescopic cylinder 1-2, and two groups of crawler telescopic cylinders 1-2 are symmetrically installed on the front and rear side walls of the axle 1-1, and the piston ends of the two groups of crawler telescopic cylinders 1-2 are fixedly connected to the crawler walking device 12, and the distance between the crawler walking devices 12 on both sides is adjusted under the drive of the two groups of crawler telescopic cylinders 1-2 on the front and rear sides of the axle 1-1. In the middle, the axle 1-1 is used to install the remaining components and support the entire frame 4 and the equipment on the frame 4.

[0041] like Figure 6-9 As shown, the specific structure of the lifting active wheelset 2 and the lifting driven wheelset 3 is as follows: the lifting active wheelset 2 and the lifting driven wheelset 3 both include a wheel frame 10 and two groups of lifting cylinders 9 provided at the left and right ends of the axle 1-1, one end of the two groups of lifting cylinders 9 is symmetrically hinged to the end of the axle 1-1, the wheel frame 10 is a T-shaped structure, the piston rod ends of the two groups of lifting cylinders 9 are hinged to the transverse frame at the outer end of the wheel frame 10, and the two ends of the transverse frame of the wheel frame 10 are provided with wheelsets 11 adapted to the rails, the longitudinal frame ends of the wheel frame 10 are hinged to the axle 1-1, and under the drive of the lifting cylinder 9, the wheelset 11 is lowered to adapted contact with the rails or raised to be separated from the rails.

[0042] Among them, the crawler telescopic chassis 1, working device 13, retracting device 7, slewing mechanism 5, lifting active wheel pair 2 and lifting driven wheel pair 3 are all connected to the control cabinet, and the actions of the crawler telescopic chassis 1, working device 13, retracting device 7, slewing mechanism 5, lifting active wheel pair 2 and lifting driven wheel pair 3 are all controlled to start and stop through the operating room 6, which is convenient for controlling various functions of the rail welding vehicle.

[0043] like Figure 1 、 11 As shown in Figures 12 and 13, the specific structure of the rail-aligning device 15 is as follows: the rail-aligning device 15 includes a lifting cylinder 15-1, a swinging cylinder 15-2 and a locking cylinder 15-3. Two swinging cylinders 15-2 are symmetrically installed in the center of the bottom surface of the end of the frame 4, and the piston rod end and the upper end of the swinging cylinder 15-2 are hinged to the upper end of the lifting cylinder 15-1 at the bottom of the frame 4 through a welding seat 15-4, and the lifting cylinder 15-1 is swung to a horizontal position or a vertical position with the hinge point with the welding seat 15-4 as the center by the extension and contraction of the piston rod of the swinging cylinder 15-2. A locking cylinder 15-3 is installed on the outer wall of the upper end of the swinging cylinder 15-2, and when the piston rod end of the locking cylinder 15-3 is stuck in the buckle 15-6 on the outer side of the welding seat 15-4, the locking of the vertical swinging cylinder 15-2 position is completed. The end of the piston rod at the lower end of the jacking cylinder 15-1 is equipped with a jacking block 15-5, and the jacking cylinder 15-1 locked in the vertical position controls the jacking block 15-5 to contact the rail and lift the entire vehicle to realize azimuth rotation adjustment of the crawler telescopic chassis 1. When the jacking cylinder 15-1 is rotated to the horizontal position, the jacking block 15-5 is inserted and positioned with the support seat 15-9 provided at the bottom of the frame 4 and used to be connected to the inner end of the swing cylinder 15-2 through the pin 15-7; specifically, the inner side wall of the jacking block 15-5 is provided with an outwardly protruding plug plate 15-8, and when the jacking cylinder 15-1 swings to the horizontal position, the plug plate 15-8 with a through hole is sleeved on the convex column of the support seat 15-9 during the process of the piston rod of the jacking cylinder 15-1 being in place, and the anti-detachment connection of the jacking block 15-5 at the bottom of the frame 4 is realized by the pin 15-7 inserted on the convex column.

[0044] When the rail device 15 is not in use, its state is as follows: Figure 13 As shown, when the rail-aligning device 15 needs to be used, the pin 15-7 is removed, and the lifting cylinder 15-1 is adjusted to separate the plug plate 15-8 from the support seat 15-9. Then, the swing cylinder 15-2 is started to extend its piston rod and push the lifting cylinder 15-1 to swing to a vertical position and then stop. The locking cylinder 15-3 is started to make the piston rod end at its upper end be stuck in the buckle 15-6 on the outside of the welding seat 15-4. The locking cylinder 15-3 stops and the mechanism position is locked. At this time, the position of the lifting cylinder 15-1 is fixed; the lifting cylinder 15-1 is started to move the lifting block 15-5 down to contact with the rail, and the whole vehicle can be lifted by continuing to lift it.

[0045] Working principle: When the whole vehicle runs to the outside of the rail, the crawler walking device 12 is in a vertical position with the rail. First, the frame 4 is rotated to a position parallel to the rail through the slewing mechanism 5 and then stops. At this time, the rail device 15 is located above the rail, and the latch 15-7 is removed. The jacking cylinder 15-1 is adjusted to separate the plug plate 15-8 from the support seat 15-9. Then, the swing cylinder 15-2 is started to extend its piston rod and push the jacking cylinder 15-1 to swing to a vertical position and then stop. The locking cylinder 15-3 is started to make the piston rod end at its upper end be stuck in the buckle 15-6 on the outside of the welding seat 15-4. The locking cylinder 15-3 stops and the mechanism position is locked. At this time, the jacking cylinder 15-1 is in the The jacking cylinder 15-1 is started to move the jacking block 15-5 down to contact with the rail, and the whole vehicle is lifted up after continuing to lift the whole vehicle. The crawler telescopic chassis 1 is rotated to a position parallel to the rail through the slewing mechanism 5. Then, the rail-aligning device 15 is retracted and reset. At this time, the crawler running device 12 is in contact with the ground. When the width between the crawler running devices 12 needs to be adjusted, the lifting cylinders 9 are used to control the lifting active wheel pair 2 and the lifting driven wheel pair 3 to descend and contact with the rail and lift the whole vehicle until the crawler running device 12 is separated from the ground. The crawler telescopic cylinders 1-2 are started to move the crawler running device 12 on the same side outward or inward to adjust the distance between the crawler running devices 12.

[0046] like Figure 10 As shown, the vehicle body 14 includes a fuel tank 14-2, a generator set 14-3, a hydraulic station 14-4, an electrical control cabinet 14-5 and a water cooler 14-1. The operating room 6 is used for the operator to control the entire vehicle to perform operations. The fuel tank 14-2 is used to store fuel. The generator set 14-3 is used to supply power to the entire vehicle and the welding device 8 when they are working. The hydraulic station 14-4 is used to provide power to the hydraulic components of the entire vehicle. The electrical control cabinet 14-5 is used to control the welding device 8 to perform welding operations. The water cooler 14-1 is used to cool the generator set 14-3 when it is working. This rail welding vehicle adopts the mode of engine with generator set 14-3, which saves energy and reduces consumption, and is green and environmentally friendly.

[0047] This technical solution has a reasonable structural design, convenient and fast operation, low equipment cost, flexibility, high-quality and efficient operation, can reduce the number of railway turnout rail welding operators, improve the quality and efficiency of rail welding operations, and reduce railway driving safety hazards.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A dual-purpose rail welding vehicle for rail welding operations, characterized by: The invention comprises a crawler telescopic chassis (1) with crawler running devices (12) installed at the front and rear telescopic ends, and a lifting driving wheel pair (2) and a lifting driven wheel pair (3) respectively installed at the left and right ends of the crawler telescopic chassis (1) and located outside the ends of the crawler running devices (12). The frame (4) above the crawler telescopic chassis (1) is centrally fixedly connected to a rotary mechanism (5) at the middle of the upper end surface of the crawler telescopic chassis (1). The left and right ends of the bottom surface of the frame (4) are both equipped with a rotary mechanism for adjusting the vehicle and the track. The vehicle frame (4) is provided with a rail alignment device (15) at a relative position; a working device (13) and an operating room (6) are provided at the left end of the upper end surface of the vehicle frame (4), and a retractable device (7) is provided at the right end of the upper end surface of the vehicle frame (4); the retractable device (7) is connected to the welding device (8), and the welding device (8) is controlled by the retractable device (7) to be unfolded when in use and retracted on the vehicle frame (4) after use; and a vehicle body (14) connected to a control button in the operating room (6) is provided in the middle of the upper end surface of the vehicle frame (4).

2. The dual-purpose rail welding vehicle for rail welding according to claim 1, characterized in that: The retractable device (7) comprises a movable seat (7-1) connected to a guide drive device on a crawler telescopic chassis (1), a bracket (7-2) fixed to the upper end surface of the movable seat (7-1), a first oil cylinder (7-3) and a second support (7-6) provided on two long sides of the bracket (7-2), one end of the first oil cylinder (7-3) being hinged to the left end of the long side of the bracket (7-2), and the right end of the first connecting rod (7-4) and the left end of the second connecting rod (7-5) are both hinged to the first connecting rod (7-6) on the same side. The telescopic end of the oil cylinder (7-3) is hinged, the left end of the first connecting rod (7-4) is hinged to the bracket one (7-2), and the right end of the second connecting rod (7-5) is hinged to the support two (7-6), the support two (7-6) is a U-shaped frame structure with an opening facing the movable seat (7-1), and the two ends of the left end of the support two (7-6) are hinged to the outer side of the right end of the bracket one (7-2), and the hinge position of the support two (7-6) and the bracket one (7-2) is between the first connecting rod (7-4) and the bracket one (7-2). ) on the right side of the hinged position, the support 2 (7-6) is unfolded or folded after rotating around the hinged position of the support 1 (7-2) under the telescopic control of the piston rod of the first oil cylinder (7-3), the right end of the support 2 (7-6) is an L-shaped structure protruding vertically upward, and a telescopic bracket (7-9) adapted to the long side guide of the support 2 (7-6) is provided on the right side, and a third oil cylinder (7-10) is provided on the outer walls of the two long sides of the support 2 (7-6). The piston end of the third oil cylinder (7-10) is connected to the right end of the outer wall on the same side of the telescopic bracket (7-9), and the telescopic bracket (7-9) is extended or retracted under the telescopic drive of the third oil cylinder (7-10). The middle part of the right end of the telescopic bracket (7-9) is hinged to the welding device (8) through the second rotary mechanism (7-11), and the welding device (8) is retracted and stored or deployed for use after bypassing the middle part of the second support (7-6) under the joint action of the first oil cylinder (7-3) and the third oil cylinder (7-10).

3. The dual-purpose rail welding vehicle for rail welding according to claim 2, characterized in that: The guide drive device comprises a guide seat (7-7) and a second oil cylinder (7-8); the guide seat (7-7) is fixed to the upper end surface of the crawler telescopic chassis (1); the bottom of the movable seat (7-1) is adapted to guide the two long sides of the guide seat (7-7); the upper end surface of the crawler telescopic chassis (1) is provided with two second oil cylinders (7-8) respectively located on the inner sides of the long sides of the guide seat (7-7); the piston ends of the second oil cylinders (7-8) are connected to the left end of the movable seat (7-1); and under the drive of the second oil cylinders (7-8), the movable seat (7-1) is extended or retracted along the length direction of the guide seat (7-7).

4. The dual-purpose rail welding vehicle for rail welding according to claim 3, characterized in that: A third rotating mechanism (7-12) for rotating and adjusting the position of the welding device (8) in a folded storage state is provided in the middle of the upper end surface of the movable seat (7-1).

5. The dual-purpose rail welding vehicle for rail welding according to claim 1, characterized in that: The crawler-type telescopic chassis (1) comprises an axle (1-1) and a crawler telescopic oil cylinder (1-2). Two sets of crawler telescopic oil cylinders (1-2) are symmetrically mounted on both front and rear side walls of the axle (1-1). The piston ends of the two sets of crawler telescopic oil cylinders (1-2) are fixedly connected to the crawler running devices (12). The distance between the crawler running devices (12) on both sides is adjusted by driving the two sets of crawler telescopic oil cylinders (1-2) on the front and rear sides of the axle (1-1).

6. The dual-purpose rail welding vehicle for rail welding according to claim 5, characterized in that: The lifting active wheel pair (2) and the lifting driven wheel pair (3) both include a wheel frame (10) and two groups of lifting oil cylinders (9) provided at the left and right ends of the axle (1-1), one end of the two groups of lifting oil cylinders (9) being symmetrically hinged to the end of the axle (1-1), the wheel frame (10) being a T-shaped structure, the piston rod ends of the two groups of lifting oil cylinders (9) being hinged to the transverse frame at the outer end of the wheel frame (10), and both ends of the transverse frame of the wheel frame (10) being provided with wheel pairs (11) adapted to the rails, the longitudinal frame ends of the wheel frame (10) being hinged to the axle (1-1), and the wheel pairs (11) being driven by the lifting oil cylinders (9) to descend to adapted contact with the rails or to ascend to be separated from the rails.

7. The dual-purpose rail welding vehicle for rail welding according to claim 1, characterized in that: The rail alignment device (15) comprises a lifting cylinder (15-1), a swinging cylinder (15-2) and a locking cylinder (15-3). Two swinging cylinders (15-2) are symmetrically installed on the bottom surface of the end of the frame (4). The piston rod end and the upper end of the swinging cylinder (15-2) are hinged to the upper end of the lifting cylinder (15-1) at the bottom of the frame (4) through a welding seat (15-4). The lifting cylinder (15-1) is swung to a horizontal position or a vertical position with the hinge point with the welding seat (15-4) as the center by the expansion and contraction of the piston rod of the swinging cylinder (15-2). The locking cylinder (15-3) is installed on the outer wall of the upper end of the swinging cylinder (15-2). The locking cylinder (15-3) is installed on the outer wall of the upper end of the swinging cylinder (15-2). 3) When the piston rod end at the upper end is clamped into the buckle (15-6) outside the welding seat (15-4), the position of the vertical swing cylinder (15-2) is locked. The piston rod end at the lower end of the lifting cylinder (15-1) is installed with a lifting block (15-5). The lifting cylinder (15-1) locked in the vertical position controls the lifting block (15-5) to contact the rail and lift the entire vehicle, so that the crawler telescopic chassis (1) can achieve azimuth rotation adjustment. When the lifting cylinder (15-1) rotates to the horizontal position, the lifting block (15-5) is inserted and positioned with the support seat (15-9) provided at the bottom of the frame (4) and used to be connected to the inner end of the swing cylinder (15-2) through the latch (15-7).

8. The dual-purpose rail welding vehicle for rail welding according to claim 7, characterized in that: An outwardly protruding plug plate (15-8) is provided on the inner side wall of the jacking block (15-5), and when the jacking oil cylinder (15-1) swings to a horizontal position, the plug plate (15-8) with a through hole is sleeved on the convex column of the support seat (15-9) during the process of the piston rod of the jacking oil cylinder (15-1) being in place, and the anti-detachment connection of the jacking block (15-5) to the bottom of the vehicle frame (4) is achieved by means of a latch (15-7) inserted into the convex column.

9. The road-rail dual-purpose rail welding vehicle for rail welding operations according to any one of claims 1 to 8, characterized in that: The crawler-type telescopic chassis (1), the working device (13), the retracting device (7), the slewing mechanism (5), the lifting active wheel pair (2) and the lifting driven wheel pair (3) are all connected to a control cabinet, and the movements of the crawler-type telescopic chassis (1), the working device (13), the retracting device (7), the slewing mechanism (5), the lifting active wheel pair (2) and the lifting driven wheel pair (3) are all controlled to start and stop via an operating room (6).

10. The dual-purpose rail welding vehicle for rail welding according to claim 9, characterized in that: The vehicle body (14) comprises a fuel tank (14-2), a generator set (14-3), a hydraulic station (14-4), an electrical control cabinet (14-5) and a water cooler (14-1); the operating room (6) is used for an operator to control the entire vehicle to perform operations; the fuel tank (14-2) is used to store fuel; the generator set (14-3) is used to supply power to the entire vehicle and a welding device (8) when the vehicle is in operation; the hydraulic station (14-4) is used to provide power to the hydraulic components of the entire vehicle; the electrical control cabinet (14-5) is used to control the welding device (8) to perform welding operations; and the water cooler (14-1) is used to cool the generator set (14-3) when the vehicle is in operation.

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