Rail changer

Abstract

The application provides a rail replacement vehicle for replacing a contact rail, comprising a vehicle body, at least one rail replacement mechanism, a plurality of groups of hanging basket supports and at least one group of hanging baskets; the vehicle body comprises a chassis and a plurality of pairs of wheel assemblies, the plurality of pairs of wheel assemblies are arranged on the side of the chassis facing the track; the rail replacement mechanism is arranged on the side of the chassis away from the track; two groups of hanging basket supports are arranged on the two sides of the chassis in the width direction, each group of hanging basket supports comprises a plurality of hanging basket supports, and the plurality of hanging basket supports are arranged at intervals along the length direction of the chassis; the hanging baskets are detachably connected to at least part of the hanging basket supports, and the hanging baskets extend from the hanging basket supports to be close to the track. The rail replacement vehicle provided by the application can realize the whole rail replacement operation by using only one rail replacement vehicle, without using multiple devices, and the number of workers controlling the devices is correspondingly reduced, so that the cooperation difficulty between the workers is reduced, and the rail replacement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of railway engineering vehicles, in particular to a rail replacement vehicle. BACKGROUND

[0002] The contact rail is a device for transmitting electric energy to the electric traction vehicle of the rail transit system, and is an important part of the entire maglev line system engineering, which is related to the reliability and safety of the maglev train current collection.

[0003] In the related art, the contact rail is located on both sides of the maglev track beam, and an insulating support is arranged between the contact rail and the track beam. The contact rail and the insulating support are connected to the pre-buried channel on the side surface of the track beam through bolts. The contact rail that is damaged or excessively worn must be replaced to ensure the safety of the line. When replacing, the worker needs to move to the vicinity of the contact rail to twist the bolt so as to disassemble and install the contact rail.

[0004] However, the maglev line is mostly constructed on an elevated platform, and the replacement of the contact rail requires more personnel and equipment, which is difficult to coordinate and has low efficiency. SUMMARY

[0005] The present application provides a rail replacement vehicle to solve the problem of the replacement of the contact rail requiring more personnel and equipment, which is difficult to coordinate and has low efficiency.

[0006] The present application provides a rail replacement vehicle for replacing the contact rail, which comprises a vehicle body, at least one rail replacement mechanism, a plurality of groups of hanging basket supports and at least one group of hanging baskets.

[0007] The vehicle body comprises a chassis and a plurality of pairs of wheel assemblies, and the plurality of pairs of wheel assemblies are arranged on the side of the chassis facing the track;

[0008] The rail replacement mechanism is arranged on the side of the chassis away from the track;

[0009] Two groups of hanging basket supports are arranged on both sides of the chassis in the width direction, and each group of hanging basket supports comprises a plurality of hanging basket supports which are arranged at intervals along the length direction of the chassis;

[0010] The hanging baskets are detachably connected to at least part of the hanging basket supports, and the hanging baskets extend from the hanging basket supports to the vicinity of the track.

[0011] The rail replacement vehicle provided by the present application can move the worker to the vicinity of the contact rail through the hanging basket to twist the bolt and replace the contact rail, and the rail replacement mechanism can realize the transportation of the contact rail between the vehicle body and the track. The new and old contact rails can be placed on the vehicle body. Thus, only one rail replacement vehicle can realize the entire rail replacement operation, without the need to use multiple devices, and the number of workers controlling the devices is also reduced, thereby reducing the difficulty of cooperation between the workers and improving the rail replacement efficiency.

[0012] Specifically, the rail-changing vehicle comprises a vehicle body, at least one rail-changing mechanism, a plurality of hanging basket supports and at least one hanging basket, wherein the vehicle body comprises a chassis and a plurality of wheel assemblies arranged on a side of the chassis facing the track to realize the walking, guiding and braking of the rail-changing vehicle on the track; the rail-changing mechanism is arranged on a side of the chassis away from the track and can realize the transportation of the contact rail between the vehicle body and the track; two hanging basket supports are arranged on both sides of the chassis in the width direction, each of the two hanging basket supports comprises a plurality of hanging basket supports which are arranged at intervals along the length direction of the chassis; and the hanging basket is detachably connected to at least part of the hanging basket supports and extends from the hanging basket supports to the vicinity of the track so as to enable the staff to move to the vicinity of the contact rail on both sides of the track through the hanging basket to perform the rail-changing operation.

[0013] In a possible implementation, the hanging basket comprises a staircase frame, the staircase frame comprises two vertical rods and a plurality of horizontal rods, the plurality of horizontal rods are arranged at intervals between the two vertical rods, one end of the staircase frame close to the hanging basket support is a connecting end, and the other end of the staircase frame close to the track is a working end.

[0014] In a possible implementation, the hanging basket further comprises at least two connecting rods, one end of the connecting rod is connected to the connecting end of the staircase frame, the other end of the connecting rod is provided with a bent section, the bent section extends towards the track, the connecting rod is lapped on the hanging basket support, and the bent section is detachably connected to the hanging basket support through a connecting piece.

[0015] In a possible implementation, the hanging basket support is provided with at least two connecting blocks, the at least two connecting rods are lapped on the at least two connecting blocks one by one, and the bent section is detachably connected to the connecting block through the connecting piece.

[0016] In a possible implementation, the hanging basket further comprises a working frame, the working frame is arranged at the working end of the staircase frame, and the working frame extends towards the vehicle body in the width direction of the vehicle body.

[0017] In a possible implementation, the rail-changing mechanism comprises a winch, a pulley assembly, at least one hook and at least one hanging seat.

[0018] The winch and the pulley assembly are arranged on the side of the chassis away from the track, the winch is wound with at least one lifting rope, the pulley assembly comprises at least one fixed pulley, at least one hook is correspondingly connected to the at least one fixed pulley, the at least one hook is correspondingly connected to the end of the at least one lifting rope, and at least one hanging seat is correspondingly hung on the at least one hook, and the hanging seat is used for placing the contact rail.

[0019] In a possible implementation, the pulley assembly further comprises a lifting rod support and a lifting rod, the lifting rod support is arranged on the side of the chassis away from the track, the middle section of the lifting rod is connected to the lifting rod support, the end of the lifting rod extends out of the width range of the chassis, and the fixed pulley is arranged at the end of the lifting rod.

[0020] In a possible implementation, the boom support includes a bearing frame and a sliding frame, the bearing frame is arranged on the side of the chassis away from the track, the sliding frame is slidingly connected to the side of the bearing frame away from the track, and the middle section of the boom is connected to the boom support.

[0021] In a possible implementation, the length of the boom is greater than the width of the track.

[0022] In a possible implementation, the side of the chassis away from the track is provided with a guardrail, and the guardrail is arranged around the outer edge of the chassis.

[0023] The configuration of the present application and its other inventive purposes and benefits will be more apparent and understandable through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the embodiments of the present application will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. In the drawings, various embodiments of the present application are illustrated by way of example and not limitation in which:

[0025] Figure 1 A schematic view of the rail-changing vehicle provided by the embodiments of the present application;

[0026] Figure 2 A schematic view of the middle basket; Figure 1 A schematic view of the middle basket;

[0027] Figure 3 A schematic view of the middle basket support; Figure 1 A schematic view of the middle basket support;

[0028] Figure 4 A schematic view of the middle rail-changing mechanism. Figure 1 REFERENCE SIGNS:

[0029] 10 - rail-changing vehicle;

[0030] 100 - vehicle body; 110 - chassis; 120 - wheel assembly; 121 - traveling wheel; 122 - guide wheel; 130 - guardrail;

[0031] 200 - rail-changing mechanism; 210 - winch; 211 - hoisting rope; 220 - pulley assembly; 221 - fixed pulley; 222 - boom support; 2221 - bearing frame; 2222 - sliding frame; 2223 - telescopic rod; 223 - boom; 230 - hook; 240 - basket;

[0032]

[0033] ​300-Suspended platform; 310-Staircase frame; 310a-Connecting end; 310b-Working end; 311-Upright pole; 312-Horizontal bar; 320-Connecting rod; 321-Bent section; 330-Work frame;

[0034] 400 - Suspended basket bracket; 410 - Connecting block;

[0035] 500-coupler;

[0036] 20 - Rail; 21 - Contact rail; 22 - F rail. Detailed Implementation

[0037] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0038] Medium- and low-speed maglev, as a new type of rail transit in recent years, has attracted increasing attention due to its superior performance, such as low noise, small turning radius, strong climbing ability, and high comfort, and represents a new development direction for future rail transit. The contact rail, as the power supply system for the maglev train and the only equipment system in contact with the train, is a crucial part of the entire maglev line system engineering, affecting the reliability and safety of the train's current intake.

[0039] In related technologies, contact rails are located on both sides of the maglev track beam, and insulating supports are installed between the contact rails and the track beam. The contact rails and insulating supports are connected to pre-embedded channels on the side of the track beam by bolts. Damaged or excessively worn contact rails must be replaced to ensure track safety.

[0040] However, most maglev lines are built on elevated tracks. When replacing the rails, workers need to move to the vicinity of the contact rail using an installation vehicle to tighten bolts in order to disassemble and install the contact rail. A crane is needed to lift the contact rail from the ground to the track beam for replacement, and vehicles are also needed to store and transport the contact rail.

[0041] It is evident that the contact rail replacement operation requires equipment such as installation vehicles, cranes, and contact rail storage and transportation vehicles. The required equipment and personnel are numerous, coordination is difficult, the operation is cumbersome, and the efficiency is low.

[0042] In addition, the contact rail of the maglev line is located below the F rail. If the contact rail is directly hoisted, it will interfere with the F rail, affect the rail switching operation, and may damage the track.

[0043] In view of this, this application provides a rail-changing vehicle. Workers can move to the vicinity of the contact rail via a basket to tighten bolts to replace the contact rail. The contact rail is then transported between the vehicle body and the rail via a rail-changing mechanism. Both the old and new contact rails can be placed on the vehicle body. In this way, only one rail-changing vehicle is needed to complete the entire rail-changing operation, eliminating the need for multiple devices and reducing the number of personnel required to control the equipment. This reduces the difficulty of coordination among workers and improves the efficiency of rail changing.

[0044] The track-changing vehicle provided in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0045] Figure 1 This is a schematic diagram of the track-changing vehicle provided in an embodiment of this application. Figure 1 As shown in the figure, this application embodiment provides a rail changing vehicle for replacing contact rail 21. The rail changing vehicle 10 includes a body 100, at least one rail changing mechanism 200, multiple sets of suspended basket supports 400 and at least one set of suspended baskets 300. The rail changing mechanism 200 and the suspended basket supports 400 are both disposed on the body 100, and the suspended baskets 300 are connected to the suspended basket supports 400. The body 100 can drive the rail changing mechanism 200, the suspended basket supports 400 and the suspended baskets 300 to move, so as to perform rail changing operations along the track 20.

[0046] For example, the track-changing vehicle 10 can be used to replace the maglev contact rail 21, or it can be used to replace the contact rail 21 of other tracks 20 such as the straddle-type monorail contact rail 21. This embodiment does not impose any limitations.

[0047] For ease of description, the length direction of the track-changing vehicle 10 is defined as the x-axis, the width direction as the y-axis, and the height direction as the z-axis. It can be understood that the coordinate system of the track-changing vehicle 10 can be flexibly set according to specific practical needs.

[0048] The main body 100 includes a chassis 110 and multiple pairs of wheel assemblies 120. The multiple pairs of wheel assemblies 120 are all located on the side of the chassis 110 facing the track 20. Specifically, the wheel assembly 120 may include a traveling wheel 121 and a guide wheel 122. The traveling wheel 121 travels on the upper surface of the track 20, and the guide wheel 122 travels on the side of the track 20, so as to realize the travel, guidance and braking of the track changing vehicle 10 on the track 20.

[0049] In practical applications, a coupler 500 can be provided at one end of the base frame 110 along its length (i.e., the x-direction). The coupler 500 can be used to connect a tractor to provide traction for the rail-changing vehicle 10 and drive it to move. Alternatively, a coupler 500 can also be provided at the other end of the base frame 110 along its length (i.e., the x-direction) to connect other equipment as needed.

[0050] The rail-changing mechanism 200 is located on the side of the underframe 110 away from the rail 20. The rail-changing mechanism 200 can realize the transportation of the contact rail 21 between the vehicle body 100 and the rail 20.

[0051] Two sets of suspended platform supports 400 are respectively set on both sides of the width direction (i.e., the y direction) of the base frame 110. Each set of suspended platform supports 400 includes multiple supports. Multiple suspended platform supports 400 are spaced apart along the length direction (i.e., the x direction) of the base frame 110. The suspended platform 300 is detachably connected to at least part of the suspended platform supports 400. The suspended platform 300 extends from the suspended platform supports 400 to near the track 20, so that the workers can move through the suspended platform 300 to the vicinity of the contact rail 21 on both sides of the track 20 to perform track changing operations.

[0052] During track replacement, workers can move to the vicinity of the contact rail 21 via the hoist 300 to tighten the bolts and replace the contact rail 21. Then, the track replacement mechanism 200 is used to transport the contact rail 21 between the vehicle body 100 and the track 20. Both the old and new contact rails 21 can be placed on the vehicle body 100. In this way, only one track replacement vehicle 10 is needed to complete the entire track replacement process, including the storage, transportation, and disassembly of the contact rails 21 on both sides of the track 20, which improves construction efficiency. It eliminates the need for multiple pieces of equipment and reduces the number of personnel controlling the equipment, thereby reducing the difficulty of coordination between workers and improving track replacement efficiency.

[0053] For example, two sets of suspended platforms 300 can be provided, with the two sets of suspended platforms 300 respectively set on both sides of the width direction (i.e., the y direction) of the base frame 110, so that the workers can perform track changing operations on both sides of the track 20 at the same time, thereby improving track changing efficiency; or, only one set of suspended platforms 300 can be provided, reducing the number of suspended platforms 300 can save costs. One set of suspended platforms 300 can be installed sequentially on the suspended platform brackets 400 on both sides as needed, so that the workers can perform track changing operations on both sides of the track 20 respectively.

[0054] Understandably, to ensure that each suspended platform 300 has an installation location, the number of suspended platforms 300 in each group should not exceed the number of suspended platform brackets 400 in each group.

[0055] It should be noted that the bolts on the maglev contact rail 21 are closely spaced and numerous. In addition to the head and tail ends, the middle section of the maglev contact rail 21 may also have multiple bolts spaced apart.

[0056] If the length of the rail-changing vehicle 10 (i.e., the dimension in the x-direction) is short, the traction vehicle needs to be started frequently during the installation of a section of contact rail 21 so that workers can remove and install bolts at different locations. This operation is cumbersome and affects the efficiency of rail changing. Therefore, the length of the rail-changing vehicle 10 can be greater than or equal to the length of a section of contact rail 21 so that at least one section of contact rail 21 can be replaced in one stop, thereby improving the efficiency of rail changing.

[0057] To meet the requirements for disassembling and assembling closely spaced bolts, closely spaced suspended platform supports 400 can be installed. However, the cost of suspended platforms 300 is relatively high. To reduce costs, the number of suspended platforms 300 in each group can be less than the number of suspended platform supports 400. Specifically, the number of suspended platform supports 400 in each group can be four, and the number of suspended platforms 300 in each group can be two. Alternatively, the number of suspended platform supports 400 in each group and the number of suspended platforms 300 in each group can be set to other values ​​according to actual needs. This embodiment does not impose any restrictions.

[0058] In this way, before construction, the workers can quickly connect the suspended platform 300 to the suspended platform support 400, and then move the suspended platform 300 to the vicinity of the contact rail 21 on the base frame 110 to assist in the disassembly and assembly of bolts. After that, the suspended platform 300 can be disassembled and quickly connected to another suspended platform support 400 to assist in the disassembly and assembly of bolts in other positions, thereby completing the replacement of the contact rail 21.

[0059] For example, a guardrail 130 may be provided on the side of the base frame 110 away from the track 20. The guardrail 130 is arranged around the outer edge of the base frame 110 to protect the personnel of the base frame 110 and improve the safety of the track changing vehicle 10.

[0060] Figure 2 for Figure 1 A schematic diagram of the suspended platform. (See diagram below.) Figure 2 As shown, the suspended platform 300 may include a stair frame 310, which includes two uprights 311 and multiple horizontal bars 312. The multiple horizontal bars 312 are spaced apart between the two uprights 311. The end of the stair frame 310 near the suspended platform support 400 is the connecting end 310a, and the end of the stair frame 310 near the track 20 is the working end 310b, so that workers can climb and move between the connecting end 310a and the working end 310b.

[0061] In some examples, the stair frame 310 of the suspended platform 300 can be a telescopic structure. Specifically, the uprights 311 can be formed by telescopically connecting several inner and outer uprights. In this way, when the track changing vehicle 10 moves, the stair frame 310 can be shortened to move away from the track 20 to avoid collision and interference with the track 20. When in use, the stair frame 310 can be extended to move closer to the track 20 for track changing operations.

[0062] In other examples, the stair frame 310 of the suspended platform 300 can also be a non-extendable structure. When the track changing vehicle 10 is moving, in order to avoid collision and interference between the suspended platform 300 and the track 20, the suspended platform 300 can be disassembled first, and then installed again when in use to carry out track changing operations.

[0063] In one specific connection method, the suspended platform 300 may further include at least two connecting rods 320. One end of the connecting rod 320 is connected to the connecting end 310a of the stair frame 310, and the other end of the connecting rod 320 is provided with a bent section 321 extending toward the track 20. The connecting rod 320 overlaps with the suspended platform bracket 400, and the bent section 321 is detachably connected to the suspended platform bracket 400 via a connector. In this way, the bent section 321 is not affected by the gravity of the stair frame 310, thereby reducing the external force on the connector and facilitating quick connection and disconnection.

[0064] Figure 3 for Figure 1 A schematic diagram of the suspended platform support structure. Figure 3 As shown, the suspended platform support 400 can be a frame structure. The suspended platform support 400 can be provided with at least two connecting blocks 410. At least two connecting rods 320 are connected to the at least two connecting blocks 410 in a one-to-one correspondence. The bent section 321 is detachably connected to the connecting block 410 through a connector to realize the quick connection and disconnection of the suspended platform 300 and the suspended platform support 400.

[0065] For example, both the bending section 321 and the connecting block 410 can be provided with through holes, and the connecting member can be a connecting pin. The connecting pin is inserted into the through holes of the bending section 321 and the connecting block 410 to form a quick-connect connection, so as to further improve the disassembly and assembly speed; or, the connecting member can also be a bolt, etc., which is not limited in this embodiment.

[0066] For example, there can be two, four or more connecting rods 320, and two, four or more connecting blocks 410. Multiple connecting rods 320 are connected to multiple connecting blocks 410 in a one-to-one correspondence to improve the connection strength between the suspended platform 300 and the suspended platform support 400.

[0067] Alternatively, the suspended platform support 400 may be provided with at least one connecting crossbar, and the connecting rods 320 at the same height on the suspended platform 300 may be connected to the same connecting crossbar of the suspended platform support 400. In this way, the number of connecting rods 320 in the width direction of the suspended platform 300 can be increased, thereby improving the connection strength between the suspended platform 300 and the suspended platform support 400.

[0068] In addition, the suspended platform 300 may also include a work frame 330, which is located at the working end 310b of the stair frame 310 and extends toward the body of the vehicle body 100 along the width direction (i.e., the y direction) so that workers can approach the contact rail 21 through the work frame 330.

[0069] To improve structural strength, a triangular structure can be provided at the corner where the work frame 330 and the stair frame 310 connect to prevent deformation or breakage at the connection.

[0070] Figure 4 forFigure 1 A schematic diagram of the rail-changing mechanism. (See diagram below.) Figure 4 As shown, the track-changing mechanism 200 may include a winch 210, a pulley assembly 220, at least one hook 230, and at least one lifting seat 240. The winch 210 and pulley assembly 220 are located on the side of the base frame 110 opposite to the track 20. The winch 210 is wound with at least one lifting rope 211. The pulley assembly 220 includes at least one fixed pulley 221. At least one hook 230 is correspondingly connected to at least one fixed pulley 221 and correspondingly connected to the end of at least one lifting rope 211. At least one lifting seat 240 is correspondingly suspended from at least one hook 230 and is used to hold the contact rail 21. Thus, the track-changing mechanism 200 can lift the contact rail 21 to transport the contact rail 21 between the vehicle body 100 and the track 20.

[0071] Combination Figure 1 As shown, there can be two or more rail changing mechanisms 200. Multiple rail changing mechanisms 200 can be spaced apart in the length direction (i.e., the x direction) of the base frame 110 in order to maintain the balance of the suspended contact rail 21.

[0072] For example, the pulley assembly 220 may further include a rod support 222 and a rod 223. The rod support 222 is disposed on the side of the base frame 110 away from the track 20. The middle section of the rod 223 is connected to the rod support 222, and the end of the rod 223 extends beyond the width range (i.e., the range in the y direction) of the base frame 110. A fixed pulley 221 is disposed at the end of the rod 223. In this way, the suspension rope 211 can extend beyond the width range of the base frame 110, avoiding contact between the suspension rope 211 and the base frame 110 and the resulting friction. The middle section of the rod 223 is connected to the rod support 222, and both ends of the rod 223 extend beyond the base frame 110, which can balance the force on both ends of the rod 223.

[0073] like Figure 4 As shown, the boom support 222 may include a support frame 2221 and a sliding platform 2222. The support frame 2221 is located on the side of the base frame 110 away from the track 20, and the sliding platform 2222 is slidably connected to the side of the support frame 2221 away from the track 20. The middle section of the boom 223 is connected to the boom support 222. In this way, the sliding platform 2222 can drive the boom 223 to move, thereby controlling the position of the hoisting rope 211, controlling the contact rail 21 to avoid the F rail 22, and preventing interference between the contact rail 21 and the F rail 22.

[0074] For example, the side of the support frame 2221 away from the track 20 may be provided with a guide rail, and the side of the sliding platform 2222 facing the track 20 may be provided with a groove. The guide rail of the support frame 2221 is located in the groove of the sliding platform 2222 to achieve a sliding connection between the two.

[0075] In addition, the boom support 222 may also include a telescopic boom 2223, one end of which is connected to the support frame 2221 and the other end of which is connected to the sliding platform 2222. This allows the telescopic boom 2223 to control the sliding of the sliding platform 2222 on the support frame 2221 and control the position of the boom 223 connected to the end of the boom 223, thereby controlling the contact rail 21 to avoid the F rail 22.

[0076] The telescopic rod 2223 can be an electric telescopic rod, or it can be a hydraulic telescopic rod; this embodiment does not impose any restrictions.

[0077] For example, the length of the boom 223 can be greater than the width of the track 20. In this way, the boom ropes 211 on both sides can maintain a certain distance from the F-rail 22 to avoid interference with the F-rail 22, so that the track changing operation can be carried out on both sides of the track 20 at the same time, thereby improving the track changing efficiency.

[0078] As mentioned earlier, the suspended platform 300 can be equipped with only one set, allowing workers to perform single-sided rail replacement operations on both sides of the track 20. It is understood that if the rail replacement vehicle 10 adopts a single-sided rail replacement working scheme, the length of the boom 223 can be less than the width of the track 20. The boom 223 can extend out of the vehicle and retract into the vehicle on one side via the telescopic rod 2223. During operation, the positive y-direction contact rail 21 can be placed on the suspension seat 240 inside the vehicle first, then the boom 223 can be extended out of the vehicle to replace the positive y-direction contact rail 21; afterwards, the boom 223 can be retracted into the vehicle, and the negative y-direction contact rail 21 can be placed on the suspension seat 240 on the other side, then the boom 223 can be extended out of the vehicle to replace the negative y-direction contact rail 21.

[0079] Alternatively, two booms 223 can be installed on the boom support 222. The two booms 223 extend to both sides of the width direction (i.e., the y direction) of the rail changing vehicle 10. The booms 223 on both sides can be controlled independently. The booms 223 only need to extend out of the base plate, and their length does not need to be greater than the width of the track 20.

[0080] At this point, the staff can choose a working plan based on the actual setup of the suspended platform 300. They can choose to perform rail replacement work simultaneously on both sides of the track 20, or they can choose to perform rail replacement work on one side of the track 20 respectively. Moreover, since the lifting rods 223 on both sides are independently controlled, when replacing rails on both sides simultaneously, there is no need to consider whether there will be interference on the other side, which facilitates operation.

[0081] In some examples, two sliding platforms 2222 can be provided on a support frame 2221. Both sliding platforms 2222 are slidably connected to the support frame 2221, and two hangers 223 are respectively connected to the two sliding platforms 2222 to achieve independent control of the hangers 223 on both sides.

[0082] In other examples, the sliding platform 2222 can be fixedly mounted on the support frame 2221, or the boom support 222 can be a single piece, and the two booms 223 can be telescopic booms, with both telescopic booms mounted on the boom support 222 to achieve independent control of the booms 223 on both sides.

[0083] It is understood that the structure illustrated in the embodiments of this application does not constitute a specific limitation on the rail-changing vehicle 10. In other embodiments of this application, the rail-changing vehicle 10 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. For example, the base frame 110 of the rail-changing vehicle 10 may also be equipped with components such as a tool cabinet.

[0084] In the description of this application, it should be understood that the terms "length", "width", "height", "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0087] In the description of this specification, the references to the terms "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rail-changing vehicle for replacing contact rails, characterized in that, The track-changing vehicle includes a body (100), at least one track-changing mechanism (200), two sets of basket supports (400) and at least one basket (300). The vehicle body (100) includes a chassis (110) and multiple pairs of wheel assemblies (120), all of which are located on the side of the chassis (110) facing the track. The track-changing mechanism (200) is located on the side of the base frame (110) opposite to the track; Two sets of the suspended basket brackets (400) are respectively arranged on both sides of the base frame (110) in the width direction. Each set of the suspended basket brackets (400) includes multiple brackets, and the multiple suspended basket brackets (400) are spaced apart along the length direction of the base frame (110). The basket (300) is detachably connected to at least a portion of the basket support (400), the basket (300) extending from the basket support (400) to proximity to the track; The suspended platform (300) includes a stair frame (310), and the end of the stair frame (310) near the suspended platform support (400) is a connecting end (310a). The suspended platform (300) also includes at least two connecting rods (320). One end of the connecting rod (320) is connected to the connecting end (310a) of the stair frame (310), and the other end of the connecting rod (320) is provided with a bent section (321). The bent section (321) extends toward the track, and the connecting rod (320) overlaps the suspended platform bracket (400). The bent section (321) is detachably connected to the suspended platform bracket (400) through a connector. The suspended basket support (400) is provided with at least two connecting blocks (410), and at least two connecting rods (320) are connected to the at least two connecting blocks (410) in a corresponding manner. The bent section (321) is detachably connected to the connecting block (410) through a connector. The stair frame (310) of the suspended basket (300) is a telescopic structure.

2. The track-changing vehicle according to claim 1, characterized in that, The stair frame (310) includes two uprights (311) and multiple horizontal bars (312). The multiple horizontal bars (312) are spaced apart between the two uprights (311). The end of the stair frame (310) near the track is the working end (310b).

3. The track-changing vehicle according to claim 2, characterized in that, The suspended basket (300) also includes a work frame 330, which is disposed at the working end (310b) of the stair frame (310) and extends toward the body body (100) along the width direction of the body body (100).

4. The track-changing vehicle according to any one of claims 1-3, characterized in that, The track-changing mechanism (200) includes a winch (210), a pulley assembly (220), at least one hook (230) and at least one lifting seat (240). The winch (210) and the pulley assembly (220) are disposed on the side of the base frame (110) away from the rail. The winch (210) is wound with at least one hoisting rope (211). The pulley assembly (220) includes at least one fixed pulley (221). At least one hook (230) is correspondingly connected to at least one fixed pulley (221). At least one hook (230) is correspondingly connected to the end of at least one hoisting rope (211). At least one suspension seat (240) is correspondingly suspended from at least one hook (230). The suspension seat (240) is used to place the contact rail.

5. The track-changing vehicle according to claim 4, characterized in that, The pulley assembly (220) further includes a rod support (222) and a rod (223). The rod support (222) is located on the side of the base frame (110) away from the track. The middle section of the rod (223) is connected to the rod support (222), and the end of the rod (223) extends beyond the width of the base frame (110). The fixed pulley (221) is located at the end of the rod (223).

6. The track-changing vehicle according to claim 5, characterized in that, The boom support (222) includes a support frame (2221) and a sliding platform (2222). The support frame (2221) is located on the side of the base frame (110) away from the track. The sliding platform (2222) is slidably connected to the side of the support frame (2221) away from the track. The middle section of the boom (223) is connected to the boom support (222).

7. The track-changing vehicle according to claim 5, characterized in that, The length of the boom (223) is greater than the width of the track.

8. The track-changing vehicle according to any one of claims 1-3, characterized in that, The base frame (110) is provided with a guardrail on the side away from the track, and the guardrail is arranged around the outer edge of the base frame (110).

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