A modular urban rail steel rail vehicle, an urban rail steel rail vehicle set and a method for loading and unloading rails

Abstract

The present invention belongs to the technical field of rail receiving and unloading, and discloses a modular urban rail rail vehicle, which includes a chassis, a rail lifting device, a raceway beam, a rail guiding and anti-overturning device, a safety door, and a rail pulling winch device. A notch is left in the middle of the chassis for the central lowering or retracting of the rails. The present invention also discloses an urban rail rail vehicle group, which includes a plurality of modular urban rail rail vehicles. The present invention also discloses a method for receiving and unloading rails, which includes the following steps: Step S1, use the above-mentioned urban rail rail vehicle group; Step S2, when recycling the old rails in the center, start the rail pulling winch device and start the rail lifting device to synchronously lift the rails onto the raceway beam; Step S3, when unloading the new rails in the center, drag the rail end to fully contact the ground, move the vehicle group forward, and unload the remaining part of the rail; Step S4, when recycling or unloading the rails, lift them onto the raceway beam or lift them to the ground. The present invention has the advantages of simultaneously realizing the receiving and unloading of long and short rails and meeting the requirements of central and lateral rail receiving and unloading, etc.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail receiving and unloading, and particularly relates to a modular urban rail rail car, an urban rail rail car group and a rail receiving and unloading method. Background Art

[0002] The number of operating lines and the length of operating lines of urban rail in China continue to grow, and more and more rails need to be replaced. The main reasons for rail replacement include fatigue cracks, severe wear, unevenness and severe corrosion, etc. The general steps for rail replacement generally include the disassembly and recycling of the old rail, as well as the unloading and installation of the new rail.

[0003] When receiving and unloading 100m long rails, a rail receiving and releasing train is generally used, but there are the following defects: 1) Each vehicle of the rail receiving and releasing train is connected through a bridge track for the rail crane to move back and forth on the rail transport vehicle. Because the disassembly and assembly of the bridge track are difficult, the rail receiving and releasing train adopts a fixed formation, and the operation efficiency is low; 2) There are many curves on urban rail lines, and the wear of rails in the curve section is more serious than that in the straight section. Therefore, the replacement of rails in the curve section is relatively frequent. Since the length of rails in the general curve section is short, it is not suitable to use a rail receiving and releasing train; 3) During operation, the rail crane runs on the rail transport vehicle, and the cooperation requirements between the locomotive driver and the rail crane driver are relatively high. If the operation is improper, the rail crane has the risk of tipping over. The rail crane is relatively heavy, and it is difficult to handle emergencies, which is likely to affect the operation of the subway.

[0004] When receiving and unloading 25m long rails, a flat crane is generally used. The flat crane is a crane installed on a railway flat car. The crane is generally arranged at the end of the flat car. A group of 2 flat cranes can lift the old rails on the ground to the vehicle from the side of the vehicle body and lift the new rails on the vehicle to the ground. There are the following defects: 1) The flat crane is only suitable for receiving, unloading and transporting rails with a length of 25m or shorter. When recycling longer old rails, it is necessary to manually cut the old rails into short rails with a length of 25m before they can be lifted onto the vehicle for transportation. When replacing rails, it is necessary to weld the 25m long new rails into seamless rails. This operation method is time-consuming and laborious, has air pollution, affects the occupational health of operators, and it is difficult to guarantee the welding quality of the rails; 2) The flat crane can only receive and unload rails from the side of the vehicle body. The rails must be placed on the shoulder of the line. There is a contact rail for subway vehicles to draw power on one side of some subway lines, and an evacuation platform on the other side. The rails cannot be placed on the shoulder, and the flat crane cannot perform the operation of receiving and unloading rails.

[0005] Therefore, there is currently a lack of a rail car and a car group that can receive and unload long and short rails in the middle and laterally, resulting in the inability to meet the rail receiving and unloading requirements of urban rails in China. Summary of the Invention

[0006] The present invention aims to provide a modular urban rail steel rail vehicle, an urban rail steel rail vehicle group and a method for loading and unloading steel rails, which can perform loading and unloading of steel rails in the center and laterally, and are applicable to both long and short steel rails, so as to solve the problem that the current lack of steel rail vehicles and vehicle groups that can load and unload long and short steel rails in the center and laterally cannot meet the requirements for loading and unloading urban rail steel rails in China.

[0007] To this end, the technical solution adopted by the present invention is as follows: A modular urban rail steel rail vehicle includes a chassis and a steel rail lifting device, a raceway beam, a steel rail guiding and anti-overturning device, a safety door, and a rail pulling winch device, all of which can be detachably installed on the chassis. A notch is left in the middle of the chassis for the central lowering or retraction of the steel rail. The steel rail lifting device includes a mounting chassis that moves longitudinally along the chassis, a rail lifting column that moves transversely along the mounting chassis, a rail lifting cross beam that is rotatably installed at the top of the rail lifting column, a telescopic clamp assembly that moves left and right along the rail lifting cross beam, and a driving mechanism assembly that provides the driving force for movement and telescoping. The telescopic clamp assembly includes a telescopic arm that can telescopically move downward and a clamp that is rotatably installed at the bottom end of the telescopic arm. The loading and unloading of the steel rail is achieved by clamping the longitudinal steel rail in the center or the lateral steel rail with the clamp. The upper layer of the raceway beam can be rotatably opened to create a space for placing the lower layer of the steel rail. The steel rail guiding and anti-overturning device is used to guide the path of the central lowering or retraction of the steel rail. The rail pulling winch device is installed at the end of the chassis near the edge and is used to provide the pulling force for the lowering or retraction of the longitudinally placed steel rail in the center. The safety door is located inside the rail pulling winch device and is used to prevent the steel rail from moving longitudinally along the vehicle body and rushing out of the vehicle body.

[0008] As a preference of the above solution, coupler buffer devices are installed at the front and rear ends of the chassis. Bogies are installed at intervals in the front and rear of the bottom of the chassis, a braking device and an electro-hydraulic system are installed in the middle. The chassis includes end beams at the front and rear ends, side beams on the left and right sides, sleeper beams that are arranged at intervals in the front and rear and whose left and right ends are horizontally lapped on the side beams, middle beams that are arranged at intervals on the left and right, and short cross beams that are arranged at intervals in the front and rear. A spacing is left between the two middle beams, and the front and rear ends are correspondingly lapped on the sleeper beams to form a notch. The side beams are installed with longitudinally extending tracks. The end beams are installed with a ferry plate that is convenient for passing between two vehicles outward. The short cross beams are located between the middle beams and the corresponding side beams.

[0009] Compared with the middle beam of the conventional chassis that longitudinally penetrates as an important support component of the chassis, in this solution, a transversely penetrating sleeper beam is designed, and then the front and rear ends of the middle beam are lapped on the sleeper beam. While ensuring the structural support strength, a notch is left, and the structure is interlocked, with a clever design.

[0010] Further preferably, the installation chassis is integrally in a square frame structure, and hoist moving rollers capable of longitudinally moving along the track are provided at four corners. The bottom end of the suspension rail column is installed on the installation chassis through a guiding optical rod. Between the suspension rail column and the installation chassis, and between the suspension rail cross beam and the telescopic clamp assembly, lateral translation is carried out through the meshing transmission of a gear and a rack. The telescopic arm adopts a multi-stage telescopic sleeve structure, ensuring that the clamp can move to both sides of the vehicle body and can adjust the angle conveniently for clamping the rail. The structural design is closely linked.

[0011] Further preferably, the raceway beam includes a beam frame capable of longitudinally translating along the chassis, and a lower rail placement beam, an upper rail placement beam, a closing support bracket, and an opening support bracket all installed on the beam frame. The lower rail placement beam is fixedly installed on the beam frame. The upper rail placement beams are symmetrically arranged left and right in a mirror image and are rotatably installed on the beam frame through a rotating cylinder. The closing support bracket is located between the upper rail placement beams and is used to support and lock the end of the upper rail placement beam when it is closed. The opening support bracket is located on the side and is used to correspondingly support and lock the end of the upper rail placement beam when it is rotated 90° to open. When it is necessary to place the rail on the lower rail placement beam, it is necessary to first rotate the upper rail placement beam 90° to open, so as to create a placement space. The structural design is reasonable.

[0012] Further preferably, the rail guiding and anti-overturning device includes an upper rail guiding seat installed above the front and rear ends of the notch, a lower rail guiding seat installed below the front and rear ends of the chassis, and a middle rail guiding assembly installed in the notch and arranged along the inclined direction of the rail, thereby jointly forming an anti-overturning path for the rail to be unloaded and loaded. Since the rail is pulled from the ground above the chassis and needs to obliquely pass through the notch of the chassis, it is necessary to set guides for the rail direction above, below and at the notch of the chassis to effectively prevent the rail from overturning.

[0013] Further preferably, the upper guide seat on the rail includes an upper guide mounting frame detachably mounted on the underframe, upper guide flat rollers both mounted on the upper guide mounting frame, upper guide vertical rollers symmetrically arranged left and right, and upper guide plates symmetrically connected front and back in a mirror image to connect the front and rear sides of the upper guide flat rollers, so as to limit and guide the part of the rail above the underframe. The lower guide seat on the rail includes a "V"-shaped mounting frame mounted under the underframe, a guide ring plate mounted at the bottom end of the "V"-shaped mounting frame with the front and rear ends in a flared structure facing outwards, lower guide flat rollers on the upper and lower sides inside the guide ring plate, and lower guide vertical rollers on the left and right sides of the guide ring plate, so as to limit and guide the part of the rail below the underframe. The lower guide vertical rollers have a structure that is thicker at the top and thinner at the bottom, so as to prevent the rail from flipping. The middle guide assembly of the rail is overall symmetrically structured in a front-back mirror image. The middle guide assembly of the rail includes a middle guide side plate welded to the corresponding side middle beam and a plurality of middle guide flat rollers and middle guide plates all mounted on the middle guide side plate. The middle guide flat rollers and middle guide plates are both in upper and lower guiding cooperation with the running direction of the rail entering from either end of the notch. The middle guide plate is correspondingly connected to the front side and / or the rear side of the middle guide flat roller.

[0014] The middle guide assembly of the rail adopts a front-back mirror image symmetrical structure, so as to perform diagonal anti-flipping limit on the rail entering from either end of the notch. The vehicle body can be flexibly turned around front and back without affecting the loading and unloading of the rail.

[0015] Further preferably, the rail pulling winch device includes a winch mounting seat detachably mounted on the underframe, a winch mounted on the winch mounting seat, and a rail clamp mounted at the end of the winch steel wire rope. The rail clamp is used for clamping the dragging end of the rail. The safety door includes a door frame symmetrically and detachably mounted on the underframe left and right, and two door bodies rotatably mounted on the corresponding side door frames left and right. A stop is provided at the bottom of the door body. The two door bodies are correspondingly provided with door locks fixed by inserting lock pins. An anti-wear roller for the steel wire rope of the rail pulling winch device to pass through is provided at the upper part of the inner end of the door body. The position is reasonably arranged, and the safety door effectively avoids the situation that the rail runs out of the vehicle body longitudinally along the vehicle body, and resists the impact force of the rail through the stop.

[0016] Further preferably, the lower layer rail placement beam and the upper layer rail placement beam are both provided with roller assemblies for placing the rail and rail locking assemblies at intervals left and right. The top of the rotating cylinder is connected to the beam frame through a connecting plate. Rolling beam moving rollers capable of longitudinally translating along the track are provided on the left and right of the beam frame. The beam frame is connected to the mounting underframe, so that the rail lifting device drives the rolling beam to longitudinally translate synchronously along the underframe. The structural design is reasonable, serving two purposes with one action and reducing the cost of the driving parts.

[0017] The present invention also provides an urban rail rail car group, including a plurality of modular urban rail cars as described above connected end to end.

[0018] The present invention also provides a method for receiving and unloading rails, comprising the following steps:

[0019] Step S1: Use the above-mentioned urban rail steel rail car group, and load and unload the steel rail lifting device, rolling beam, steel rail guiding and anti-overturning device, safety door and rail pulling hoisting device according to requirements;

[0020] Step S2: When recycling the old rails longitudinally arranged in the middle, first use the rail lifting equipment to lift the end of the rail, then connect the steel wire rope of the rail pulling hoisting device to the front end of the rail, start the rail pulling hoisting device, and make the rail move along the anti-overturning path formed by the steel rail guiding and anti-overturning device until the rear end of the rail is located on the underframe, and then start the steel rail lifting device of the corresponding adjacent modular urban rail steel rail car to synchronously lift the rail onto the rolling beam;

[0021] Step S3: When unloading the new rails longitudinally arranged in the middle, connect the steel wire rope of the rail pulling hoisting device to the rear end of the rail, and under the action of the self-weight of the rail, drag the end of the rail until it completely touches the ground, and then the car group moves forward to unload the remaining part of the rail;

[0022] Step S4: When recycling the old rails longitudinally arranged on the side or unloading the new rails to the side, use the steel rail lifting device of the corresponding adjacent modular urban rail steel rail car to synchronously lift the rail from the ground onto the rolling beam or lift the rail from the rolling beam to the ground.

[0023] Advantages of the present invention:

[0024] (1) Compared with the current situation where a rail receiving and discharging train is used when receiving and discharging 100m-long rails, and a flat crane is needed when receiving and discharging 25m-long rails, with troublesome replacement, the present solution uses a modular urban rail steel rail car that can be flexibly installed with a steel rail lifting device, a rolling beam, a steel rail guiding and anti-overturning device, a safety door, and a rail pulling hoisting device. The modular urban rail steel rail cars are connected in groups according to the length of the steel rails, so as to simultaneously realize the receiving and discharging of long and short rails, meet the requirements for simultaneously replacing the rails in the curved section and the straight section of the subway line, with novel concept and ingenious design.

[0025] (2) By leaving a notch in the middle of the underframe for the center placement or retraction of the rail, the upper layer of the raceway beam can be rotated and opened to create space for the placement of the lower-layer rail. The rail guiding and anti-overturning device guides the path of the center placement or retraction of the rail. The rail pulling winch device is installed at the end of the underframe along the side, providing the pulling force for the center longitudinal placement or retraction of the rail. The devices cooperate with each other to achieve the center longitudinal loading and unloading of the rail, effectively avoiding the situation where the rail cannot be loaded and unloaded when it cannot be placed on the shoulder. By installing the underframe to translate longitudinally along the underframe, the rail lifting column moves transversely along the installed underframe, the rail lifting crossbeam is rotatably installed on the top of the rail lifting column, the telescopic clamp assembly moves left and right along the rail lifting crossbeam, the driving mechanism assembly provides the driving force for the movement and telescoping, and the clamp of the telescopic clamp assembly is rotatably installed at the bottom end of the telescopic arm, so as to realize the flexible adjustment of the horizontal, vertical and clamping angle positions of the clamp, meet the requirements of lateral rail loading and unloading, and have high automation efficiency, convenient and fast operation, and effectively save manpower and material resources.

[0026] In summary, the present invention has the advantages of simultaneously realizing the loading and unloading of long and short rails, meeting the requirements of center and lateral rail loading and unloading, high automation efficiency, convenient and fast operation, and effectively saving manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the front view of the modular urban rail rail car.

[0028] Figure 2 is Figure 1 the top view of

[0029] Figure 3 It is the cross-sectional view of the modular urban rail rail car.

[0030] Figure 4 It is the top view of the underframe.

[0031] Figure 5 It is the left view of the rail lifting device.

[0032] Figure 6 It is the front view of the rail lifting device.

[0033] Figure 7 It is the left view of the raceway beam.

[0034] Figure 8 It is the front view of the raceway beam.

[0035] Figure 9 It is the top view of the raceway beam.

[0036] Figure 10 It is the front view of the rail guiding and anti-overturning device.

[0037] Figure 11 It is the top view of the upper rail guiding seat;

[0038] Figure 12 It is the left view of the lower guide seat of the rail.

[0039] Figure 13 It is the top view of the guide assembly in the middle of the rail.

[0040] Figure 14 It is the left view of the safety door.

[0041] Figure 15 It is the front view of the safety door.

[0042] Figure 16 It is the front view of the rail pulling winch device.

[0043] Figure 17 It is a schematic diagram of the side loading and unloading of rails for urban rail rail cars.

[0044] Figure 18 It is a schematic diagram when the rail is not dragged.

[0045] Figure 19 It is a schematic diagram of the steps for dragging the front end of the rail to pass through the third modular urban rail rail car.

[0046] Figure 20 It is a schematic diagram of the steps for dragging the front end of the rail to pass by the second modular urban rail rail car.

[0047] Figure 21 It is a schematic diagram of the steps for dragging the rail to be placed on the rolling beam of the two front modular urban rail rail cars. Detailed implementation manners

[0048] The present invention will be further described below through embodiments in conjunction with the accompanying drawings:

[0049] In conjunction with Figure 1 — Figure 21 As shown, a modular urban rail rail car is composed of a chassis 1 and a rail lifting device 2, a rolling beam 3, a rail guiding and anti - overturning device 4, a safety door 5, and a rail pulling winch device 6 that can all be detachably installed on the chassis 1.

[0050] A notch 1a is left in the middle of the chassis 1 for the rail 9 to be centered and lowered or retracted.

[0051] Coupler buffer devices 7 are installed at the front and rear ends of the chassis 1, and bogies 8 are installed at intervals at the front and rear of the bottom of the chassis 1, and a braking device and an electro - hydraulic system are installed in the middle.

[0052] The chassis 1 is composed of end beams 11 at the front and rear ends, side beams 12 on the left and right sides, sleeper beams 13 arranged at intervals front and rear and with their left and right ends horizontally lapped on the side beams 12, middle beams 14 arranged at intervals left and right, and short cross - beams 15 arranged at intervals front and rear.

[0053] There is a spacing between the two center beams 14, and the front and rear ends are correspondingly lapped on the bolster 13, thereby forming a notch 1a.

[0054] The side beam 12 is installed with a longitudinally extending track 121.

[0055] The track 121 is made of channel steel structure, and a rack is provided on the inner side of the upper edge, and it is in meshing transmission with the driving mechanism assembly through a gear-rack.

[0056] The end beam 11 is externally installed with a crossover plate 111 convenient for passing between two vehicles through fasteners.

[0057] The upper surface of the underframe 1 is installed with a steel grating through hinges, which is used to avoid water accumulation and snow accumulation, increase the anti-slip effect, and is installed with hinges, which can be flipped open to facilitate personnel to enter the underframe 1 for maintenance and repair.

[0058] The short cross beam 15 is located between the center beam 14 and the side beam 12 on the corresponding side.

[0059] The rail lifting device 2 is composed of an installation underframe 21 that longitudinally translates along the underframe 1, a rail lifting column 22 that transversely moves along the installation underframe 21, a rail lifting cross beam 23 that is rotatably installed at the top of the rail lifting column 22, a telescopic clamp assembly 24 that moves left and right along the rail lifting cross beam 23, and a driving mechanism assembly that provides the driving force for movement and telescoping.

[0060] The telescopic clamp assembly 24 is composed of a telescopic arm that can telescopically move downward and a clamp 242 that is rotatably installed at the bottom end of the telescopic arm, and the telescopic and unloading are realized by clamping the central longitudinal rail 9 or the lateral rail 9 by the clamp 242.

[0061] The installation underframe 21 is integrally in a square frame structure, and lifting tool moving rollers that can longitudinally move along the track 121 are provided at the four corners.

[0062] The bottom end of the rail lifting column 22 is installed on the installation underframe 21 through a guiding optical bar.

[0063] Both between the rail lifting column 22 and the installation underframe 21 and between the rail lifting cross beam 23 and the telescopic clamp assembly 24 perform lateral translation through the meshing transmission of a gear and a rack.

[0064] The telescopic arm adopts a multi-stage telescopic sleeve structure.

[0065] The upper layer of the raceway beam 3 can be rotatably opened to make way for the lower layer of rail placement space.

[0066] The raceway beam 3 is composed of a beam frame 31 that can longitudinally translate along the underframe 1, a lower layer rail placement beam 32, an upper layer rail placement beam 33, a closed support bracket 34, and an open support bracket 35 that are all installed on the beam frame 31.

[0067] The lower layer rail placement beam 32 is fixedly installed on the beam frame 31.

[0068] The upper rail placement beams 33 are arranged symmetrically left and right in a mirror image and are rotatably installed on the beam frame 31 through the rotating cylinders 331.

[0069] Both the lower rail placement beam 32 and the upper rail placement beam 33 are provided with roller assemblies 36 for placing the rails 9 and rail locking assemblies 37 for locking the rails 9 at intervals left and right.

[0070] The top of the rotating cylinder 331 is connected to the beam frame 31 through the connecting plate 331a.

[0071] The beam frame 31 is provided with rolling beam moving rollers on the left and right that can longitudinally translate along the track 121.

[0072] The beam frame 31 is connected to the installation base frame 21, so that the rail lifting device 2 drives the rolling beam 3 to longitudinally translate synchronously along the base frame 1.

[0073] The closed support bracket 34 is located between the upper rail placement beams 33 and is used to support and lock the ends of the upper rail placement beams 33 when they are closed.

[0074] The open support bracket 35 is located on the side and is used to correspondingly support and lock the ends of the upper rail placement beams 33 when they are rotated 90° to open.

[0075] The rail guiding and anti - overturning device 4 is used to guide the path for the rail 9 to be lowered or retracted centrally.

[0076] The rail guiding and anti - overturning device 4 is composed of an upper rail guiding seat 41 installed above the front and rear ends of the notch 1a, a lower rail guiding seat 42 installed below the front and rear ends of the base frame 1, and a middle rail guiding assembly 43 installed in the notch 1a and arranged along the inclined direction of the rail 9, thus jointly forming an anti - overturning path for the rail 9 to be unloaded and loaded.

[0077] The upper rail guiding seat 41 is composed of an upper guiding installation frame 411 detachably installed on the base frame 1, upper guiding flat rollers 412 all installed on the upper guiding installation frame 411, left - and - right symmetric upper guiding vertical rollers 413, and upper guiding plates 414 that are symmetrically connected front and rear in a mirror image to the front and rear sides of the upper guiding flat rollers 412, so as to limit and guide the part of the rail 9 located above the base frame 1.

[0078] The lower rail guiding seat 42 is composed of a "V" - shaped installation frame 421 installed below the base frame 1, a guiding ring plate 422 installed at the bottom end of the "V" - shaped installation frame 421 and with a flared structure facing outward at the front and rear ends, lower guiding flat rollers 423 located on the upper and lower sides inside the guiding ring plate 422, and lower guiding vertical rollers 424 located on the left and right sides of the guiding ring plate 422, so as to limit and guide the part of the rail 9 located below the base frame 1. The lower guiding vertical rollers 424 have a structure that is thicker at the top and thinner at the bottom, thus playing a role in preventing the rail from overturning.

[0079] The guiding assembly 43 in the rail is overall in a front-back mirror-symmetrical structure. The guiding assembly 43 in the rail consists of a middle guiding side plate 433 welded to the corresponding side middle beam 14 and a number of middle guiding flat rollers 431 and middle guiding plates 432 all installed on the middle guiding side plate 433.

[0080] The middle guiding flat rollers 431 and the middle guiding plates 432 are both in up-and-down guiding cooperation with the running direction of the rail 9 entering from any one end before and after the notch 1a.

[0081] The middle guiding plate 432 is correspondingly connected to the front side and / or the rear side of the middle guiding flat roller 431.

[0082] The rail pulling winch device 6 is installed on the side close to the end of the underframe 1, and is used to provide a pulling force for lowering or retracting the centrally longitudinally placed rail 9.

[0083] The rail pulling winch device 6 consists of a winch mounting seat 61 detachably installed on the underframe 1, a winch 62 installed on the winch mounting seat 61, and a rail clamp 63 installed at the end of the steel wire rope of the winch 62.

[0084] The rail clamp 63 is used to clamp the dragging end of the rail 9.

[0085] The safety door 5 is located inside the rail pulling winch device 6, and is used to prevent the rail from moving longitudinally along the vehicle body and rushing out of the vehicle body.

[0086] The safety door 5 consists of a door frame 51 symmetrically and detachably installed on the left and right on the underframe 1 and two door bodies 52 rotatably installed on the corresponding side door frames 51.

[0087] A stop 53 is provided at the bottom of the door body 52. Corresponding door locks 54 are provided on the two door bodies 52 and are fixed by inserting lock pins. An anti-wear roller 55 through which the steel wire rope of the rail pulling winch device 6 passes is provided at the upper part of the inner end of the door body 52.

[0088] An urban rail rail vehicle group is composed of three of the above-mentioned modular urban rail rail vehicles connected end to end.

[0089] A method for loading and unloading rails, the specific implementation steps are as follows:

[0090] Step S1: Adopt an urban rail rail vehicle group as described above, and load and unload the rail lifting device 2, the roller path beam 3, the rail guiding and anti-overturning device 4, the safety door 5 and the rail pulling winch device 6 according to requirements.

[0091] Step S2: When recycling the old rails longitudinally placed in the center, first use the rail lifting equipment to lift the end of rail 9, then connect the steel wire rope of the rail pulling winch device 6 to the front end of rail 9, start the rail pulling winch device 6, and move rail 9 along the anti-overturning path formed by the rail guiding anti-overturning device 4 until the rear end of rail 9 is located on the chassis 1. Then start the rail lifting device 2 of the corresponding adjacent modular urban rail rail car to synchronously lift rail 9 onto the raceway beam 3.

[0092] Step S3: When unloading the new rails longitudinally placed in the center, connect the steel wire rope of the rail pulling winch device 6 to the rear end of rail 9, and under the action of the self-weight of rail 9, drag the end of rail 9 until it fully contacts the ground. Then the vehicle group moves forward to unload the remaining part of rail 9.

[0093] Step S4: When recycling the old rails longitudinally placed on the side or unloading the new rails to the side, use the rail lifting device 2 of the corresponding adjacent modular urban rail rail car to synchronously lift rail 9 from the ground onto the raceway beam 3 or lift rail 9 from the raceway beam 3 to the ground.

Claims

1. A modular urban rail car, characterized in that: The invention comprises a base frame (1) and a rail lifting device (2) which can be detachably mounted on the base frame (1), a roller beam (3), a rail guide anti-turning device (4), a safety door (5), and a rail pulling winch device (6). A notch (1a) is left in the middle of the base frame (1) for the rail (9) to be lowered or retracted in the middle. The rail lifting device (2) comprises a mounting base frame (21) which moves longitudinally along the base frame (1), a rail hanging column (22) which moves laterally along the mounting base frame (21), a rail hanging crossbeam (23) which is rotatably mounted on the top of the rail hanging column (22), a retractable clamp assembly (24) which moves left and right along the rail hanging crossbeam (23), and a driving mechanism assembly which provides a driving force for movement and retraction. The retractable clamp assembly The component (24) comprises a telescopic arm (241) that can be telescoped downward and a clamp (242) that can be rotatably mounted at the bottom end of the telescopic arm (241), and the central longitudinal rail (9) or the lateral rail (9) is clamped by the clamp (242) to realize the collection and unloading, the upper layer of the rolling beam (3) can be rotated to open so as to make room for the lower rail placement, the rail guide anti-turnover device (4) is used to guide the path of the central lowering or retraction of the rail (9), the rail pulling hoisting device (6) is installed sideways at the end of the base frame (1), and is used to provide a dragging force for the central longitudinally placed rail (9) to be lowered or retracted, and the safety door (5) is located on the inner side of the rail pulling hoisting device (6), and is used to prevent the rail from moving longitudinally along the vehicle body and rushing out of the vehicle body; The rail guide anti-turnover device (4) comprises an upper rail guide seat (41) mounted above the front and rear ends of the notch (1a), a lower rail guide seat (42) mounted below the front and rear ends of the chassis (1), and a middle rail guide assembly (43) mounted in the notch (1a) and arranged along the inclined direction of the rail (9), thereby jointly forming an anti-turnover path for the rail (9) to pass through when being collected and unloaded.

2. A modular urban rail car according to claim 1, characterized in that: The front and rear ends of the chassis (1) are provided with a coupler buffer device (7), the bottom of the chassis (1) is provided with a bogie (8) at intervals at the front and rear ends, and a brake device and an electric hydraulic system are provided in the middle. The chassis (1) comprises end beams (11) at the front and rear ends, side beams (12) at the left and right sides, a bolster (13) arranged at intervals at the front and rear ends and transversely overlapped on the side beams (12), a middle beam (14) arranged at intervals at the left and right sides, and a short cross beam (15) arranged at intervals at the front and rear ends, a spacing is left between the two middle beams (14) and the front and rear ends are correspondingly overlapped on the bolster (13), thereby forming a gap (1a), the side beams (12) are provided with a longitudinally extending track (121), the end beams (11) are provided with a ferry (111) facing outwards for facilitating passage between two vehicles, and the short cross beam (15) is located between the middle beam (14) and the side beam (12) on the corresponding side.

3. A modular urban rail car according to claim 2, characterized in that: The mounting frame (21) is in the form of a square frame structure as a whole, and four corners are provided with hanging device moving rollers capable of longitudinally moving along the track (121). The bottom end of the hanging rail column (22) is mounted on the mounting frame (21) via a guide light bar. The hanging rail column (22) and the mounting frame (21), and the hanging rail crossbeam (23) and the telescopic clamp assembly (24) are all laterally translated via gear and rack meshing transmission. The telescopic arm (241) adopts a multi-stage telescopic sleeve structure.

4. A modular urban rail car according to claim 2, characterized in that: The raceway beam (3) comprises a beam frame (31) capable of longitudinal translation along the base frame (1), and a lower rail placement beam (32), an upper rail placement beam (33), a closed support frame (34), and an open support frame (35) all mounted on the beam frame (31); the lower rail placement beam (32) is fixedly mounted on the beam frame (31); the upper rail placement beam (33) is arranged in a mirror-symmetrical manner on the left and right and is rotatably mounted on the beam frame (31) via a rotating drum (331); the closed support frame (34) is located between the upper rail placement beams (33) and is used to support and lock the end of the upper rail placement beam (33) when closed; and the open support frame (35) is located on the side and is used to correspondingly support and lock the end of the upper rail placement beam (33) when rotated 90 degrees to open.

5. A modular urban rail car according to claim 4, characterized in that: The rail upper guide seat (41) comprises an upper guide mounting frame (411) detachably mounted on the base frame (1), upper guide flat rollers (412) mounted on the upper guide mounting frame (411), upper guide vertical rollers (413) symmetrically disposed on both sides, and upper guide plates (414) connected to the front and rear sides of the upper guide flat rollers (412) in a mirror-image manner, so as to limit and guide the portion of the rail (9) located above the base frame (1). The rail lower guide seat (42) comprises a "V"-shaped mounting frame (421) mounted below the base frame (1), a guide ring plate (422) mounted at the bottom end of the "V"-shaped mounting frame (421) and having a trumpet-shaped structure with its front and rear ends facing outward, a lower guide flat roller (423) located on the upper and lower sides of the guide ring plate (422), and a lower guide plate (424) located on the guide ring plate (424). The lower guide vertical rollers (424) on the left and right sides of the base frame (1) are used to limit and guide the portion of the steel rail (9) located below the base frame (1). The lower guide vertical rollers (424) are of a thick upper structure and a thin lower structure. The steel rail middle guide assembly (43) is of a front-to-back mirror-symmetrical structure as a whole. The steel rail middle guide assembly (43) includes a middle guide side plate (433) welded to the corresponding side middle beam (14) and a plurality of middle guide flat rollers (431) and middle guide plates (432) all mounted on the middle guide side plates (433). The middle guide flat rollers (431) and middle guide plates (432) are both used to guide the steel rail (9) entering from either the front or rear end of the notch (1a) in an upward and downward direction. The middle guide plates (432) are correspondingly connected to the front side and / or the rear side of the middle guide flat roller (431).

6. A modular urban rail car according to claim 1, characterized in that: The rail-pulling winch device (6) comprises a winch mounting seat (61) detachably mounted on a base frame (1), a winch (62) mounted on the winch mounting seat (61), and a rail clamp (63) mounted on the end of a steel wire rope of the winch (62), wherein the rail clamp (63) is used to clamp the dragging end of the rail (9); the safety door (5) comprises a door frame (51) symmetrically detachably mounted on the base frame (1) and two left and right door bodies (52) rotatably mounted on corresponding side door frames (51), a stopper (53) is provided at the bottom of the door body (52), and the two door bodies (52) are correspondingly provided with door locks (54) fixed by inserting a lock pin, and an anti-wear roller (55) is provided at the upper inner end of the door body (52) for the steel wire rope of the rail-pulling winch device (6) to pass through.

7. A modular urban rail car according to claim 4, characterized in that: The lower rail placement beam (32) and the upper rail placement beam (33) are both provided with roller assemblies (36) for placing the rails (9) and rail locking assemblies (37) for locking the rails (9) at intervals on the left and right. The top of the rotating drum (331) is connected to the beam frame (31) via a connecting plate (331a). The beam frame (31) is provided with rollers for moving the track beams that can move longitudinally along the track (121) on the left and right. The beam frame (31) is connected to the mounting base frame (21), so that the rail lifting device (2) drives the track beam (3) to move longitudinally along the base frame (1) synchronously.

8. An urban rail car set, characterized in that: A modular urban rail car comprising a plurality of rail cars connected end to end as described in any one of claims 1 to 7.

9. A rail collecting and unloading method, characterized in that: The following steps are involved: Step S1, using an urban rail car set as claimed in claim 8, and loading and unloading a rail lifting device (2), a rolling beam (3), a rail guide anti-turnover device (4), a safety door (5) and a rail pulling winch device (6) according to demand; Step S2, when recovering the old rail placed longitudinally in the center, first use the rail lifting equipment to lift the end of the rail (9), then connect the wire rope of the rail pulling hoisting device (6) to the front end of the rail (9), start the rail pulling hoisting device (6), so that the rail (9) moves along the anti-turnover path formed by the rail guide anti-turnover device (4) until the rear end of the rail (9) is located on the base frame (1), and start the rail lifting device (2) of the corresponding adjacent modular urban rail car to synchronously lift the rail (9) onto the roller beam (3); Step S3, when unloading the new steel rail placed longitudinally in the center, the steel wire rope of the rail pulling winch (6) is connected to the rear end of the steel rail (9), and the end of the steel rail (9) is dragged to completely contact the ground under the action of the deadweight of the steel rail (9), and the train group moves forward to unload the remaining part of the steel rail (9); Step S4: when recovering the old rails longitudinally placed on the side or unloading the new rails to the side, the rail lifting device (2) corresponding to the adjacent modular urban rail rail car is used to synchronously lift the rails (9) from the ground to the roller beam (3) or to lift the rails (9) from the roller beam (3) to the ground.

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