CN214828562U

CN214828562U - Rail welding vehicle

Info

Publication number: CN214828562U
Application number: CN202120610232.4U
Authority: CN
Inventors: 张永艳; 陈志民; 马朝晖; 于云涛; 余斌; 李占龙
Original assignee: CRRC Shenyang Co Ltd
Current assignee: CRRC Shenyang Co Ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-11-23
Anticipated expiration: 2031-03-25

Abstract

The embodiment of the utility model provides a belong to rail vehicle technical field, concretely relates to weld rail car. The embodiment of the utility model provides a aim at solving the problem that the rail welding car derails easily and the car turns over when the welding among the correlation technique. The utility model discloses a weld rail car includes body, davit, welding machine and automobile body, and the body setting is on the automobile body, the end and this body coupling of davit, and the head end and the welding machine of davit are connected, and the davit is flexible arm, and the flexible direction of davit is parallel with the traffic direction of automobile body. During welding, the vehicle body stops on the steel rail which is not lifted up, and the suspension arm extends towards the direction departing from the body so as to suspend the welding machine to the steel rail to be welded, and derailment and turnover caused by the fact that the vehicle body runs and stays on the inclined steel rail are avoided.

Description

Rail welding vehicle

Technical Field

The embodiment of the utility model provides a relate to railway vehicle technical field, especially relate to a weld rail car.

Background

The railway track is generally formed by laying a plurality of steel rails end to end, and two adjacent steel rails are generally connected by welding.

In the related art, welding between adjacent rails is generally performed by a rail welding vehicle. The rail welding vehicle comprises a vehicle body, wherein a bogie matched with the steel rail is arranged at the lower part of the vehicle body, and welding equipment is arranged on the vehicle body; the welding equipment comprises a welding machine, a suspension arm and a body arranged on the vehicle body, wherein one end of the suspension arm is connected with the body, the other end of the suspension arm is connected with the welding machine, and the suspension arm is used for extending the welding machine to the outside of the vehicle body so as to weld a steel rail outside the vehicle body. During welding, the steel rail at the welding position is often lifted up so as to facilitate welding by a welding machine.

However, when the rails are lifted up, the rails are inclined with respect to the ground, and the bogie is positioned on the inclined rails, so that derailment and rollover are likely to occur.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the present invention provides a rail welding vehicle to solve the technical problem that the rail welding vehicle in the related art is easy to derail and overturn during welding.

The embodiment of the utility model provides a rail welding car, include: the welding machine comprises a body, a suspension arm, a welding machine and a vehicle body, wherein the body is arranged on the vehicle body, the tail end of the suspension arm is connected with the body, the head end of the suspension arm is connected with the welding machine, the suspension arm is a telescopic arm, and the telescopic direction of the suspension arm is parallel to the running direction of the vehicle body.

In some embodiments, which may include the above embodiments, the boom includes a fixed pipe, a first telescopic pipe penetrating the fixed pipe, and a first driving mechanism, one end of the fixed pipe is connected with the body, and the welding machine is connected with the first telescopic pipe; the first driving mechanism is connected with the fixed pipe and the first telescopic pipe and used for driving the first telescopic pipe to stretch.

In some embodiments, which may include the above-mentioned embodiments, the boom further includes a second telescopic pipe penetrating into the first telescopic pipe, and a second driving mechanism connected to the first telescopic pipe and the second telescopic pipe, and the welding machine is disposed at an end of the second telescopic pipe facing away from the body; the second driving mechanism is used for driving the second telescopic pipe to extend and retract.

In some embodiments, which may include the above embodiments, the first driving mechanism includes a first hydraulic cylinder, a cylinder body of the first hydraulic cylinder is connected with the fixed pipe, and a piston rod of the first hydraulic cylinder is connected with the first telescopic pipe; the second driving mechanism comprises a second hydraulic cylinder, a cylinder body of the second hydraulic cylinder is connected with the first telescopic pipe, and a piston rod of the second hydraulic cylinder is connected with the second telescopic pipe.

In some embodiments, which may include the above embodiments, the rail welding vehicle further includes a support rod, a top end of the support rod being connected to the boom, and a bottom end of the support rod being configured to be supported on a rail to be welded.

In some embodiments, which may include the above embodiments, the support rod includes a first support rod and a second support rod, a top end of the first support rod is connected to the fixing pipe, a bottom end of the first support rod is rotatably provided with a first roller, and the first roller is used for cooperating with the steel rail to be welded; the top end of the second support rod is connected with the second telescopic pipe, a second roller is rotatably arranged at the bottom end of the second support rod, and the second roller is used for being matched with the steel rail to be welded.

In some embodiments, which may include the above embodiments, the first support bar and the second support bar are both telescopic bars.

In some embodiments, which may include the above embodiments, the vehicle body is provided with an auxiliary track parallel to the rail to be welded, the body is provided with an auxiliary traveling device matched with the auxiliary track, the tail end of the boom is hinged to the body, and a hinge shaft between the boom and the body is parallel to a horizontal plane and perpendicular to an extending direction of the auxiliary track.

In some embodiments, which may include the above-mentioned embodiments, both ends of the auxiliary rail are provided with locking devices for locking the body.

In some embodiments, which may include the above embodiments, the vehicle body includes a flat plate and a compartment disposed on the flat plate, the flat plate and the compartment enclose a storage space, and the body is disposed in the storage space.

The embodiment of the utility model provides a weld rail car includes body, davit, welding machine and automobile body, and the body setting is on the automobile body, the end and this body coupling of davit, and the head end and the welding machine of davit are connected, and the davit is flexible arm, and the flexible direction of davit is parallel with the traffic direction of automobile body. During welding, the vehicle body stops on the steel rail which is not lifted up, and the suspension arm extends towards the direction departing from the body so as to suspend the welding machine to the steel rail to be welded, and derailment and turnover caused by the fact that the vehicle body runs and stays on the inclined steel rail are avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a first schematic structural diagram of a rail welding vehicle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram ii of a rail welding vehicle according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the first roller of the rail welding vehicle according to the embodiment of the present invention cooperating with a rail to be welded;

fig. 4 is a schematic structural diagram of the cooperation between the piston rod of the third hydraulic cylinder and the sleeper in the rail welding vehicle provided by the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a locking device in a rail welding vehicle according to an embodiment of the present invention.

Description of reference numerals:

10. a vehicle body; 20. A body;

30. a suspension arm; 40. A welding machine;

50. a first support bar; 60. A second support bar;

70. a rail to be welded; 80. A sleeper;

101. a flat plate; 102. A compartment body;

103. an auxiliary track; 104. A locking device;

105. a first fixing plate; 106. A second fixing plate;

107. a first fixed shaft; 108. A second fixed shaft;

109. a third fixed shaft; 201. An auxiliary walking device;

202. hinging a shaft; 203. A mating hole;

301. a fixed tube; 302. A first telescopic tube;

303. a cylinder body of the first hydraulic cylinder; 304. A piston rod of the first hydraulic cylinder;

305. a second telescopic tube; 306. A cylinder body of a second hydraulic cylinder;

307. a piston rod of the second hydraulic cylinder; 501. A first roller;

502. a first sub roller; 503. A second sub-roller;

504. a first connecting rod; 601. A second roller;

602. a cylinder body of a third hydraulic cylinder; 603. A piston rod of the third hydraulic cylinder;

604. a cylinder body of a fourth hydraulic cylinder; 605. A piston rod of the fourth hydraulic cylinder.

Detailed Description

First of all, it should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the embodiments of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" in the description of the embodiments of the present invention are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the related art, welding between adjacent rails is generally performed by a rail welding vehicle. The rail welding vehicle comprises a vehicle body, wherein a bogie matched with a steel rail is arranged on the lower portion of the vehicle body, four oil cylinder supporting legs are further arranged on the edge of the bottom of the vehicle body, and the oil cylinder supporting legs are used for abutting against a sleeper below the steel rail. The car body is provided with welding equipment; the welding equipment comprises a welding machine, a suspension arm and a body arranged on the vehicle body, wherein one end of the suspension arm is connected with the body, the other end of the suspension arm is connected with the welding machine, and the suspension arm is used for extending the welding machine to the outside of the vehicle body so as to weld a steel rail outside the vehicle body. During welding, the steel rail at the welding position is often lifted up so as to facilitate welding by a welding machine.

However, since the boom has a short length in the extending direction of the rail, if the vehicle body stays on the non-lifted rail, the boom cannot directly lift the welder to the rail to be welded, and therefore the vehicle body must move toward the rail to be welded and stop on the lifted rail so that the boom can lift the welder to the rail to be welded. Although the rail welding vehicle in the related art can extend the cylinder legs to abut against the sleepers, the support of the vehicle body by the cylinder legs is still not firm, and the vehicle body is easily derailed and overturned on the inclined rails.

The embodiment provides a rail welding vehicle, through setting the davit into flexible arm, makes the davit increase along the ascending length in the extending direction of rail, and then when making the automobile body stop on the rail that does not heighten, the davit just can the direct welding machine hang to treat welded rail department, avoids automobile body derail and the turnover.

As shown in fig. 1 and fig. 2, the present embodiment provides a rail welding vehicle, which includes a vehicle body 10, a body 20 disposed on the vehicle body 10, a boom 30, and a welder 40, wherein the boom 30 is a telescopic boom, a tail end of the boom 30 is connected to the body 20, a head end of the boom 30 is connected to the welder 40, the vehicle body 10 may include a flat plate 101 and a carriage 102 disposed on the flat plate 101, the flat plate 101 and the carriage 102 are enclosed to form a storage space, and the body 20, the boom 30, and the welder 40 may all be accommodated in the storage space.

With continued reference to FIG. 1, during welding, the rail 70 to be welded is lifted, with the rail 70 to be welded tilted relative to the ground, and the vehicle body 10 is parked on a rail parallel to the ground (the non-lifted rail), with the boom 30 projecting away from the body 20 parallel to the direction of travel of the vehicle body 10 to suspend the welder 40 to the rail 70 to be welded.

In this embodiment, the rail welding vehicle includes a body 20, a boom 30, a welding machine 40, and a vehicle body 10, wherein the body 20 is disposed on the vehicle body 10, a tail end of the boom 30 is connected to the body 20, a head end of the boom 30 is connected to the welding machine 40, the boom 30 is a telescopic boom, and a telescopic direction of the boom 30 is parallel to a traveling direction of the vehicle body 10. During welding, the vehicle body 10 stops on the rail which is not lifted, and the suspension arm 30 extends in the direction away from the body 20, so as to suspend the welding machine 40 to the rail 70 to be welded, and avoid derailment and overturning caused by the vehicle body 10 running and staying on the inclined rail.

In some embodiments, the boom 30 includes a fixed pipe 301, a first telescopic pipe 302 penetrating the fixed pipe 301, and a first driving mechanism, wherein one end of the fixed pipe 301 is connected to the body 20, the first telescopic pipe 302 penetrates the fixed pipe 301 from the other end of the fixed pipe 301, one end of the first telescopic pipe 302 facing away from the body 20 is connected to the welding machine 40, and the first driving mechanism is connected to the fixed pipe 301 and the first telescopic pipe 302 and is used for driving the first telescopic pipe 302 to extend and retract.

During welding, the vehicle body 10 stops on the rail which is not lifted, and the first driving mechanism drives the first telescopic pipe 302 to extend in the direction away from the body 20, so as to hoist the welding machine 40 to the rail 70 to be welded, and avoid derailing and overturning caused by the vehicle body 10 running and staying on the inclined rail.

In some embodiments, boom 30 further comprises a second telescoping tube 305 disposed through first telescoping tube 302, and a second drive mechanism connected to first telescoping tube 302 and second telescoping tube 305, second telescoping tube 305 disposed through first telescoping tube 302 from the end of first telescoping tube 302 facing away from body 20, and welder 40 disposed at the end of second telescoping tube 305 facing away from body 20; the second driving mechanism is used for driving the second telescopic pipe 305 to extend and retract.

During welding, the vehicle body 10 stops on a rail which is not lifted up, the first driving mechanism drives the first telescopic pipe 302 to extend in a direction away from the body 20, and the second driving mechanism drives the second telescopic pipe 305 to extend in a direction away from the body 20, so that the length of the boom 30 which can extend in the driving direction of the vehicle body 10 is increased, and when the length of the inclined rail 70 to be welded is longer, the boom 30 can still lift the welding machine 40 to the rail 70 to be welded, so that derailment and overturning caused by the vehicle body 10 driving and staying on the inclined rail are avoided.

Of course, boom 30 can also include a third extension tube passing through second extension tube 305 and a third drive mechanism connected to second extension tube 305 and the third extension tube, the third extension tube passing through second extension tube 305 from the end of second extension tube 305 facing away from body 20, welding machine 40 being disposed at the end of the third extension tube facing away from body 20; the third driving mechanism is used for driving the third telescopic pipe to extend and contract, so as to further increase the extensible length of the boom 30 along the driving direction of the vehicle body 10.

A person skilled in the art can also wear four, five or more telescopic pipes in the fixed pipe 301 to increase the length of the boom 30 that can be extended along the traveling direction of the vehicle body 10, which all fall within the protection scope of the present invention.

In some embodiments, the first drive mechanism comprises a first hydraulic cylinder, the cylinder 303 of which is connected to the fixed tube 301 and the piston rod 304 of which is connected to the first telescopic tube 302.

The cylinder 303 of the first hydraulic cylinder may be disposed outside the fixed pipe 301 and connected to the outer wall of the fixed pipe 301; the piston rod 304 of the first hydraulic cylinder can also be arranged outside the first extension tube 302 and connected to the outer wall of the first extension tube 302, and when the first hydraulic cylinder fails, the fixed tube 301 and the first extension tube 302 do not need to be detached, so that the first hydraulic cylinder is convenient to maintain.

Alternatively, the cylinder 303 of the first hydraulic cylinder may be disposed inside the fixed pipe 301 and connected to the inner wall of the fixed pipe 301; a piston rod 304 of the first hydraulic cylinder may be disposed inside the first extension tube 302 and connected to the inner wall of the first extension tube 302 to hide a cylinder 303 of the first hydraulic cylinder inside the fixed tube 301 and hide the piston rod 304 of the first hydraulic cylinder inside the first extension tube 302, so as to simplify the structure of the boom 30 and improve the decorative effect of the boom 30.

The piston rod 304 of the first hydraulic cylinder moves away from the body 20 to drive the first extension tube 302 to extend away from the body 20.

The second driving mechanism comprises a second hydraulic cylinder, the cylinder body 306 of which is connected with the first telescopic tube 302, and the piston rod 307 of which is connected with the second telescopic tube 305.

With continued reference to FIG. 1, the cylinder body 306 of the second hydraulic cylinder may be disposed outside the first telescoping tube 302 and attached to the outer wall of the first telescoping tube 302; the piston rod 307 of the second hydraulic cylinder can also be arranged outside the second telescopic tube 305 and connected to the outer wall of the second telescopic tube 305, and when the second hydraulic cylinder fails, the first telescopic tube 302 and the second telescopic tube 305 do not need to be detached, so that the second hydraulic cylinder is convenient to maintain.

Alternatively, the cylinder body 306 of the second hydraulic cylinder may be arranged inside the first telescopic tube 302 and connected to the inner wall of the first telescopic tube 302; the piston rod 307 of the second hydraulic cylinder can be arranged inside the second telescopic tube 305 and connected to the inner wall of the second telescopic tube 305 to hide the cylinder body 306 of the second hydraulic cylinder inside the first telescopic tube 302 and hide the piston rod 307 of the second hydraulic cylinder inside the second telescopic tube 305, so as to simplify the structure of the boom 30 and improve the decoration effect of the boom 30.

The piston rod 307 of the second hydraulic cylinder moves away from the main body 20 to drive the second extension tube 305 to extend away from the main body 20.

With continued reference to fig. 2, in an embodiment where the boom 30 includes a fixed pipe 301, a first telescopic pipe 302 penetrating the fixed pipe 301, and a first driving mechanism, the first driving mechanism includes a first hydraulic cylinder, a cylinder 303 of the first hydraulic cylinder is connected to the fixed pipe 301, a piston rod 304 of the first hydraulic cylinder is connected to an end of the first telescopic pipe 302 departing from the body 20, and the piston rod 304 of the first hydraulic cylinder moves in a direction away from the body 20 to drive the first telescopic pipe 302 to extend in a direction away from the body 20.

The number of the first telescopic pipes 302 can be multiple, such as two or three, and the multiple first telescopic pipes 302 are telescopically arranged in the fixed pipe 301. Correspondingly, the number of the piston rods 304 of the first hydraulic cylinders may also be multiple, the piston rods 304 of the multiple first hydraulic cylinders may be telescopically inserted into the cylinder bodies 303 of the first hydraulic cylinders, and the piston rod 304 of each first hydraulic cylinder drives the corresponding first telescopic pipe 302 to extend and retract, so as to further increase the length of the boom 30, which is extensible in the traveling direction of the vehicle body 10, so that when the length of the inclined rail 70 to be welded is longer, the boom 30 can still lift the welding machine 40 to the rail 70 to be welded, so as to avoid derailment and rollover of the vehicle body 10 caused by traveling and staying on the inclined rail.

In some embodiments, the rail welding carriage further comprises a support bar having a top end connected to the boom 30 and a bottom end for supporting on a rail 70 to be welded.

The support rod can support the suspension arm 30, so that the suspension arm 30 is not easy to deform after being extended, and further the suspension arm 30, the first driving mechanism and the second driving mechanism are not easy to deform and damage, so that the service lives of the suspension arm 30, the first driving mechanism and the second driving mechanism are prolonged.

In some embodiments, the support rods include a first support rod 50 and a second support rod 60, the top end of the first support rod 50 is connected to the fixed pipe 301, the bottom end of the first support rod 50 is rotatably provided with a first roller 501, and the first roller 501 is used for matching with the steel rail 70 to be welded.

As shown in fig. 3, the first roller 501 may include a first sub roller 502, a second sub roller 503, and a first connecting rod 504, the first sub roller 502 and the second sub roller 503 are rotatably connected to the first connecting rod 504, the center lines of the first sub roller 502, the second sub roller 503, and the first connecting rod 504 are collinear, the first connecting rod 504 is connected to the bottom of the first supporting rod 50, and the first sub roller 502 and the second sub roller 503 may roll along the rail 70 to be welded.

The top end of the second support rod 60 is connected with the second extension tube 305, the bottom end of the second support rod 60 is rotatably provided with a second roller 601, and the second roller 601 is used for matching with the steel rail 70 to be welded.

The second roller 601 may include a third sub-roller, a fourth sub-roller and a second connecting rod, the third sub-roller and the fourth sub-roller are both rotatably connected to the second connecting rod, the center lines of the third sub-roller, the fourth sub-roller and the second connecting rod are collinear, the second connecting rod is connected to the bottom of the second supporting rod 60, and the third sub-roller and the fourth sub-roller may roll along the steel rail 70 to be welded.

When the boom 30 extends in a direction away from the body 20, the first roller 501 and the second roller 601 both roll along the rail 70 to be welded, so that the first support rod 50 and the second support rod 60 support the boom 30, and the boom 30 is prevented from deforming after extending; meanwhile, the first support rod 50 and the second support rod 60 can guide the boom 30, so that the boom 30 extends along the driving direction of the vehicle body 10 in a direction away from the body 20, thereby avoiding the extending direction of the boom 30 from deviating, and enabling the boom 30 to accurately suspend the welding machine 40 to the rail 70 to be welded.

In some embodiments, the first support rod 50 and the second support rod 60 are both telescopic rods, the first support rod 50 may include a third hydraulic cylinder, a cylinder body 602 of the third hydraulic cylinder is connected to the fixed pipe 301, a center line of the cylinder body 602 of the third hydraulic cylinder is perpendicular to the ground, and a piston rod 603 of the third hydraulic cylinder is used for abutting against the sleeper 80 below the steel rail.

The number of the third hydraulic cylinders may be multiple, such as two or three, and when the number of the third hydraulic cylinders is two, the ends of the piston rods 603 of the two third hydraulic cylinders respectively abut against the sleepers 80 on the outer sides of the two steel rails to be welded. When the number of the third hydraulic cylinders is three, the tail ends of the piston rods 603 of two of the third hydraulic cylinders respectively abut against the sleepers 80 on the outer sides of the two steel rails to be welded, and the tail end of the piston rod 603 of the other third hydraulic cylinder abuts against the sleepers 80 on the inner sides of the two steel rails. The plurality of third hydraulic cylinders may make the support of the first support rod 50 to the fixed pipe 301 more stable.

The second support bar 60 may comprise a fourth hydraulic cylinder, the cylinder body 604 of which is connected to the second telescopic tube 305, the center line of the cylinder body 604 of the fourth hydraulic cylinder is perpendicular to the ground, and the piston rod 605 of the fourth hydraulic cylinder is used to abut against the sleeper 80 under the steel rail.

The number of the fourth hydraulic cylinders may be multiple, such as two or three, and when the number of the fourth hydraulic cylinders is two, the ends of the piston rods 605 of the two fourth hydraulic cylinders respectively abut against the sleepers 80 on the outer sides of the two steel rails to be welded. When the number of the fourth hydraulic cylinders is three, the tail ends of the piston rods 605 of two of the fourth hydraulic cylinders respectively abut against the sleepers 80 on the outer sides of the two steel rails to be welded, and the tail end of the piston rod 605 of the other fourth hydraulic cylinder abuts against the sleepers 80 on the inner sides of the two steel rails. A plurality of fourth hydraulic cylinders can make the second support rod 60 support the second telescopic tube 305 more stably.

During the extension of the boom 30 in a direction away from the body 20, the first roller 501 and the second roller 601 roll along the rail 70 to be welded, so that the first support bar 50 and the second support bar 60 support the boom 30.

When the boom 30 suspends the welding machine 40 to the position of the to-be-welded rated steel rail, the piston rod 603 of the third hydraulic cylinder and the piston rod 605 of the fourth hydraulic cylinder abut against the sleeper 80 (as shown in fig. 4), and the first roller 501 and the second roller 601 are separated from the steel rail (namely the first roller 501 and the second roller 601 are suspended), at this time, the boom 30 is supported by the third hydraulic cylinder and the fourth hydraulic cylinder, so that the position of the boom 30 is fixed, the welding machine 40 is prevented from shaking due to the movement of the boom 30, the welding machine 40 is not easy to shake during welding, and the welding process can be normally performed.

In some embodiments, the vehicle body 10 is provided with an auxiliary track 103 parallel to the rail 70 to be welded, the body 20 is provided with an auxiliary running gear 201 matched with the auxiliary track 103, the tail end of the boom 30 is hinged with the body 20, and a hinge shaft 202 between the boom 30 and the body 20 is parallel to the horizontal plane and is perpendicular to the extending direction of the auxiliary track 103.

The auxiliary rail 103 may include auxiliary rails having the same structure as the rails 70 to be welded, and the corresponding auxiliary traveling devices 201 may include wheels that may be engaged with the auxiliary rails so that the body 20 may move on the plate 101.

Alternatively, the auxiliary track 103 may include two parallel grooves formed on the plate 101, the grooves being recessed downward, and the auxiliary walking device 201 may include a hub formed at the bottom of the body 20, the hub being capable of rolling along the grooves, so that the body 20 can move on the plate 101.

When no welding is required, the body 20 is moved away from the boom 30 to the end of the plate 101. During welding, the body 20 moves to the head end of the flat plate 101 towards the boom 30 to make the boom 30 closer to the rail 70 to be welded, so that the boom 30 can lift the welder 40 to the rail 70 to be welded, thereby avoiding derailment and overturning caused by the vehicle body 10 running and staying on the inclined rail.

In some embodiments, both ends of the auxiliary rail 103 are provided with locking devices 104, and the locking devices 104 are used for locking the body 20.

As shown in fig. 5, the locking device 104 includes a first fixing plate 105 and a second fixing plate 106, a first fixing shaft 107, a second fixing shaft 108, and a third fixing shaft 109, which are disposed at both sides of the auxiliary rail 103, the first fixing plate 105 and the second fixing plate 106 are disposed in parallel, a first connection hole, a second connection hole, and a third connection hole are sequentially formed through the first fixing plate 105 from the bottom end to the top end, and a fourth connection hole, a fifth connection hole, and a sixth connection hole are sequentially formed through the second fixing plate 106 from the bottom end to the top end. The auxiliary track 103 is provided with a track hole, a central line of the track hole is perpendicular to an extending direction of the track, and the first fixing shaft 107 is arranged in the first connecting hole, the track hole and the fourth connecting hole in a penetrating manner. The second fixing shaft 108 is inserted into the second connecting hole and the fifth connecting hole.

Both ends of the body 20 in the traveling direction are provided with fitting holes 203, and the third fixing shaft 109 is detachably inserted into the third connecting hole, the fitting holes 203, and the sixth connecting hole, thereby fixing the body 20 on the auxiliary rail 103.

When welding is not needed, the body 20 moves to the tail end of the flat plate 101 in the direction away from the suspension arm 30, the locking device 104 at the tail end of the auxiliary track 103 locks the body 20 on the auxiliary track 103, so that the auxiliary walking device 201 at the bottom of the body 20 cannot move along the auxiliary track 103, and the body 20 is prevented from moving along the auxiliary track 103 to collide with the body 20, the suspension arm 30 and the welding machine 40 when the body 20, the suspension arm 30 and the welding machine 40 are accommodated in the carriage 102.

During welding, the body 20 moves to the head end of the flat plate 101 towards the boom 30 so that the boom 30 is closer to the steel rail 70 to be welded, the locking device 104 at the head end of the auxiliary track 103 locks the body 20 on the auxiliary track 103, and the auxiliary walking device 201 at the bottom of the body 20 cannot move along the auxiliary track 103, so that the body 20 is prevented from moving along the auxiliary track 103 during welding to cause the welding machine 40 to shake and affect welding.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A rail welding vehicle, comprising: the welding machine comprises a body, a suspension arm, a welding machine and a vehicle body, wherein the body is arranged on the vehicle body, the tail end of the suspension arm is connected with the body, the head end of the suspension arm is connected with the welding machine, the suspension arm is a telescopic arm, and the telescopic direction of the suspension arm is parallel to the running direction of the vehicle body.

2. The rail welding vehicle of claim 1, wherein the boom comprises a fixed pipe, a first telescopic pipe arranged in the fixed pipe in a penetrating way, and a first driving mechanism, one end of the fixed pipe is connected with the body, and the welding machine is connected with the first telescopic pipe; the first driving mechanism is connected with the fixed pipe and the first telescopic pipe and used for driving the first telescopic pipe to stretch.

3. The rail welding vehicle of claim 2, wherein the boom further comprises a second telescopic pipe arranged in the first telescopic pipe in a penetrating manner, and a second driving mechanism connected with the first telescopic pipe and the second telescopic pipe, and the welding machine is arranged at one end, away from the body, of the second telescopic pipe; the second driving mechanism is used for driving the second telescopic pipe to extend and retract.

4. The rail welding vehicle of claim 3, wherein the first driving mechanism comprises a first hydraulic cylinder, a cylinder body of the first hydraulic cylinder is connected with the fixed pipe, and a piston rod of the first hydraulic cylinder is connected with the first telescopic pipe;

the second driving mechanism comprises a second hydraulic cylinder, a cylinder body of the second hydraulic cylinder is connected with the first telescopic pipe, and a piston rod of the second hydraulic cylinder is connected with the second telescopic pipe.

5. The rail welding vehicle of claim 3, further comprising a support bar having a top end connected to the boom and a bottom end for supporting on a rail to be welded.

6. The rail welding vehicle according to claim 5, wherein the support rods comprise a first support rod and a second support rod, the top end of the first support rod is connected with the fixed pipe, the bottom end of the first support rod is rotatably provided with a first roller, and the first roller is used for matching with the rail to be welded;

the top end of the second support rod is connected with the second telescopic pipe, a second roller is rotatably arranged at the bottom end of the second support rod, and the second roller is used for being matched with the steel rail to be welded.

7. The rail welding vehicle of claim 6, wherein the first support bar and the second support bar are both telescoping bars.

8. The rail welding vehicle according to claim 5, wherein the vehicle body is provided with an auxiliary rail parallel to the rail to be welded, the body is provided with an auxiliary traveling device matched with the auxiliary rail, the tail end of the suspension arm is hinged with the body, and a hinge shaft between the suspension arm and the body is parallel to a horizontal plane and perpendicular to the extending direction of the auxiliary rail.

9. The rail welding vehicle of claim 8, wherein both ends of the auxiliary rail are provided with locking means for locking the body.

10. The rail welding vehicle of claim 8, wherein the vehicle body comprises a flat plate and a carriage disposed on the flat plate, the flat plate and the carriage enclose a storage space, and the body is disposed in the storage space.