Steel rail conveying system and urban rail steel rail train set

Abstract

The invention discloses a steel rail conveying system which comprises a first steel rail conveying device, a second steel rail conveying device and a third steel rail conveying device which are sequentially arranged, and the second steel rail conveying device comprises a conveying mechanism and a lifting mechanism; entrances and exits are oppositely formed in the front side and the rear side of the machine base, a rotating arm is arranged at the top of the machine base, a pair of jacking cylinders are arranged at the rear end of the rotating arm, the two ends of each jacking cylinder are hinged to the rotating arm and the machine base respectively, an opening is formed in the top of the machine base, and a driving flat roller extending into the conveying channel from the opening is arranged on the bottom side of the rotating arm. Supporting rollers corresponding to the driving flat rollers are arranged at the bottom in the conveying channel. A steel rail passes through the space between the supporting rollers and the driving flat rollers. The third steel rail conveying device comprises a mounting frame, a lifting translation mechanism and a conveying clamp; and the conveying clamp is used for clamping the waist part of the steel rail. The steel rails can be conveyed from the vehicle to the ground or from the ground to the vehicle without cooperation of manual work, winches and other mechanical equipment.

Description

Technical Field

[0001] This invention relates to the field of rail conveying equipment technology, specifically to a rail conveying system and an urban rail rail train set. Background Technology

[0002] In my country's railway construction, the T11BK type long-rail train is mainly used for loading, transporting, unloading, and recycling long rails. During rail unloading, a winch moves the rail to an adjusting device, which levels the rail and matches its height with the conveyor. The winch continues to move the rail until the end of the rail is in the conveyor. The conveyor then continues to move the rail until the end of the rail reaches the ground from the end of the train. After the rail end is fixed to the ground, the train moves forward to unload the rail onto the ground.

[0003] Traditional rail conveying methods involve moving the rails using a winch, which requires manual dragging of the winch's wire rope and rail clamps. The rail clamps are then manually secured to the rails. After the rails enter the conveyor, the clamps and wire ropes must be manually removed and returned, which is time-consuming and labor-intensive.

[0004] CN213386564U discloses a rail conveyor, which has a compact structure compared to the conveyor of the T11BK type long rail train and can be equipped with an additional movable base to adapt to different heights and lateral positions. However, the following technical problems still exist: 1. Before the rail enters the rail conveyor and after the rail exits the rail conveyor, manual or mechanical conveying is still required, which is also time-consuming and labor-intensive; 2. Because the conveyor uses rollers to clamp the rail above and below, the lower rollers occupy the space under the rail, making it impossible to directly lift and convey the ground rail. Summary of the Invention

[0005] This invention aims to solve the technical problems existing in the prior art, and innovatively proposes a rail conveying system that can transport rails from a vehicle to the ground or from the ground to a vehicle without the need for manual labor or other mechanical equipment such as winches.

[0006] To achieve the above objectives, the present invention provides a rail conveying system, comprising a first rail conveying device, a second rail conveying device, and a third rail conveying device arranged sequentially. The first rail conveying device is used to convey rails; the second rail conveying device is used to lower or retract rails from a gap in the middle of the vehicle; and the third rail conveying device is used to lower rails to the ground or retract them from the ground.

[0007] The second rail conveying device includes a conveying mechanism and a lifting mechanism for adjusting the height of the conveying mechanism; the front and rear sides of the base are provided with inlets and outlets for the rails to pass through, forming a conveying channel for conveying the rails; a rotating arm is provided on the top of the base, the front end of the rotating arm is hinged to the top of the base through a horizontally extending rotating shaft, and a pair of lifting cylinders are provided at the rear end of the rotating arm, the two ends of the lifting cylinders are respectively hinged to the rotating arm and the base, and the pressing force of the active flat roller is adjusted by the lifting cylinders; an opening is provided on the top of the base, and an active flat roller extending from the opening into the conveying channel is provided on the bottom side of the rotating arm, the active flat roller is used to press on the rails and convey them, and a support roller is provided at the bottom of the conveying channel corresponding to the active flat roller, and the rails pass between the support rollers and the active flat rollers;

[0008] The third rail conveying device includes a mounting frame installed on the vehicle body, a lifting and translating mechanism slidably installed on the mounting frame, and a conveying clamp installed on the lifting and translating mechanism. The conveying clamp is used to clamp the rail at the waist.

[0009] In the above scheme: the first rail conveying device includes a base, and a conveying roller for supporting and conveying the rail is provided on the base. Both ends of the conveying roller are fixed to the base by roller brackets. The conveying roller is equipped with a first conveying motor, which is a hydraulic motor. The first conveying motor and the conveying roller are driven by a transmission mechanism. The rail is conveyed by pressing the conveying roller with its own weight.

[0010] The active flat roller is equipped with a second conveying motor, which is fixed on the rotating arm and the output end of the second conveying motor is connected to the active flat roller. The top of the base is provided with a clearance notch corresponding to the second conveying motor to facilitate the up and down movement of the second conveying motor and the active flat roller.

[0011] In the above scheme: there are two lifting mechanisms, which are symmetrically arranged on the left and right sides of the base. Each lifting mechanism includes a rotating lever, a lifting lever, a lifting cylinder, and a mounting base. The lifting lever extends forward and backward, with one end hinged to the base. The two sides of the base are provided with horizontally outward rotating shafts corresponding to the lifting lever. The end of the lifting lever is provided with a sleeve hole for fitting onto the rotating shaft. The end of the rotating shaft is provided with a pin hole for a locking pin to pass through, and the lifting lever is prevented from disengaging from the rotating shaft by a locking pin inserted into the pin hole.

[0012] The other end of the lifting lever is hinged to one end of the rotating lever. The rotating lever extends vertically, and the other end of the rotating lever is provided with a hinge base, which is then hinged to the vehicle body. The middle part of the lifting lever is hinged to one end of the lifting cylinder, and the other end of the lifting cylinder is also provided with a hinge base for hinged to the vehicle body. There are two lifting mechanisms, symmetrically arranged on the left and right sides of the base. Each lifting mechanism includes a rotating lever, a lifting lever, a lifting cylinder, and a mounting base. The lifting lever extends forward and backward, with one end hinged to the base. The two sides of the base are provided with horizontally outwardly extending rotating shafts corresponding to the lifting lever. The end of the lifting lever is provided with a sleeve hole for fitting onto the rotating shaft, and the end of the rotating shaft is provided with a pin hole for a locking pin to pass through. The locking pin inserted into the pin hole prevents the lifting lever from disengaging from the rotating shaft.

[0013] The other end of the lifting lever is hinged to one end of the rotating lever. The rotating lever extends vertically, and the other end of the rotating lever is provided with a hinge base, which is then hinged to the vehicle body. The middle part of the lifting lever is hinged to one end of the lifting cylinder, and the other end of the lifting cylinder is also provided with a hinge base for hinged to the vehicle body.

[0014] In the above scheme: a pair of mounting seats are set and fixed on the vehicle body at the rear side of the machine base, and each mounting seat has a vertical groove on the opposite side for the machine base to slide up and down. The left and right sides of the rear of the machine base are vertically set with skirts for locking in the grooves. The lifting cylinder drives the lifting lever to swing, thereby driving the machine base to move up and down, so as to realize the height adjustment of the conveying mechanism.

[0015] In the above scheme: a pair of vertical rollers are provided at both the front and rear ends of the machine base, respectively located on both sides of the entrance and exit. The lateral displacement of the rail is restricted by the vertical rollers on both sides and the rail is prevented from overturning.

[0016] In the above scheme: the outer sides of both the front and rear ends of the machine base are provided with flared openings that communicate with the inlet and outlet. The flared openings are used to guide the rails to enter. The side of the bottom of the flared opening extends longer than the other sides, forming a chute to support the rails.

[0017] In the above scheme: the mounting frame includes a pair of vertical slides symmetrically arranged on the left and right sides. The vertical slides are all channel steel structures, and the slots of the pair of vertical slides are arranged opposite each other to allow the lifting and translating mechanism to move vertically. A crossbeam connects the two vertical slides to form a whole, which improves the strength and ensures the accurate relative position of the two slides 312. Stiffeners are connected between the two vertical slides and the crossbeam to improve the support stability. Mounting plates for mounting on the vehicle body are provided on the side of the two vertical slides that are far apart from each other.

[0018] In the above scheme: the lifting and translating mechanism includes a bracket located between two vertical slides. A pair of vertically arranged lifting cylinders are spaced apart on the bracket. The two ends of each lifting cylinder are hinged to the vehicle body or the bracket. Large and small rollers are arranged symmetrically on both sides of the bracket, and each roller is located within a corresponding vertical slide. The outer diameter of the large roller matches the width of the vertical slide, allowing the bracket to move vertically under the guidance of the large roller. The diameter of the small roller is smaller than the width of the slide, allowing the bracket to rotate a certain angle around the large roller as its center of rotation.

[0019] The small roller is aligned with one side of the large roller, and the hinge point between the lifting push cylinder and the bracket is located on the other side of the large roller. Due to gravity, the side of the small roller that is aligned with the large roller abuts against one side of the vertical slide groove.

[0020] The bottom side of the bracket is provided with a horizontal sliding groove extending to the left and right. A translation slider is slidably connected in the horizontal sliding groove. The translation slider is equipped with a translation push cylinder extending to the left and right. Both the lifting push cylinder and the translation push cylinder are hydraulic cylinders. The two ends of the translation push cylinder are respectively hinged to the bracket and the translation slider, so that the translation slider can move laterally along the horizontal sliding groove under the drive of the translation push cylinder.

[0021] When the side of the small roller aligned with the large roller abuts against one side of the vertical slide groove, the lifting and translating mechanism is in a horizontal position; when the lifting and translating mechanism is subjected to external force, it can rotate a certain angle around the axis of the large roller.

[0022] In the above scheme: the conveying clamp is installed on the translation slider, the conveying clamp includes a fixed conveying arm and a movable conveying arm arranged at intervals on the left and right, the rail passes between the fixed conveying arm and the movable conveying arm, and a rear flat roller and a front flat roller are arranged above the distance between the fixed conveying arm and the movable conveying arm to limit the height of the rail top tilting.

[0023] The fixed conveying arm includes a first arm extending forward and backward, which is fixedly connected to the translation slider. The movable conveying arm includes a second arm extending forward and backward, with the front end of the second arm hinged to the first arm. A clamping cylinder extending left and right is connected between the first arm and the second arm. Both ends of the clamping cylinder are respectively hinged to the first arm or the second arm via vertical pins.

[0024] The first and second arms are provided with clamping rollers at their rear ends. The clamping rollers on both sides are used to clamp the web of the rail. The first and second arms are provided with clamping conveyor wheels in the middle. The clamping conveyor wheels are also used to clamp the web of the rail. The clamping conveyor wheels are equipped with clamping conveyor motors. The clamping conveyor motors are hydraulic motors, so as to achieve both clamping and conveying of the rail.

[0025] The present invention also provides an urban rail transit train set, including the rail conveying system in the above scheme, and several transport vehicles. Only the last transport vehicle is provided with a second rail conveying device and a third rail conveying device on its bottom side, while the other transport vehicles are provided with a first rail conveying device. A conveying hole for the rail to pass through is provided in the middle of the last transport vehicle. The second rail conveying device is located behind the conveying hole, and the third rail conveying device is located at the rear of the last transport vehicle.

[0026] In summary, the beneficial effects of this invention are:

[0027] (1) By using a variety of conveying devices in combination and by adopting an innovative side rail clamping method, the rails are transported only by the conveying devices throughout the entire process, and the rails can be collected directly from the ground and unloaded directly to the ground.

[0028] (2) The third rail conveying device includes a lifting and translating mechanism, which has lifting and translating functions. When collecting rails, it can collect rails at different heights and lateral positions on the ground. When unloading rails, it can unload rails to different heights and lateral positions on the ground, which can avoid the lateral deviation of rails on curved lines and prevent rails from hitting ground facilities. In addition, the large and small rollers of the lifting and translating mechanism can rotate freely vertically at a certain angle, automatically adapting to the tilt of the rails, which can avoid jamming caused by the inconsistency between the conveying direction and the rail direction, thus affecting the conveying effect.

[0029] (3) The second rail conveying device is provided with a lifting mechanism to facilitate the adjustment of the rail height during conveying. It adopts a single wheel for rail pressing to adapt to the rail deflection at a certain angle during conveying. Attached Figure Description

[0030] Figure 1 This is a front view of the urban railcar unit of Embodiment 1;

[0031] Figure 2 This is the main view of the first rail conveying device;

[0032] Figure 3 This is an isometric drawing of the second rail conveying device;

[0033] Figure 4 It is an isometric drawing of the conveyor system;

[0034] Figure 5 This is an isometric drawing of the lifting device;

[0035] Figure 6 This is an isometric drawing of the third rail conveying device;

[0036] Figure 7 This is a cross-sectional view of the third rail conveying device;

[0037] Figure 8 This is a sectional view of the lifting and translating mechanism;

[0038] Figure 9 It is a 3D view of the conveyor fixture and the translation slider;

[0039] Figure 10 This is a rear view of the third rail conveying device and the rail;

[0040] Figure 11 It is an isometric drawing of the mounting bracket;

[0041] Figure 12 This is an isometric drawing of the lifting and translation mechanism;

[0042] Figure 13 It is a 3D view of the conveyor fixture;

[0043] Figure 14 It is an isometric drawing of a fixed conveyor arm;

[0044] Figure 15 It is an isometric drawing of the rotating conveyor arm;

[0045] Figure 16 This is a schematic diagram showing the rails being transported solely by the third rail conveying device of Embodiment 1;

[0046] Figure 17 This is a schematic diagram showing the rails being transported by the second and third rail conveying devices in Embodiment 1;

[0047] Figure 18 This is a schematic diagram showing the rails being transported by the first and second rail conveying devices in Embodiment 1.

[0048] Figure 19 This is a top view of the first rail conveying device.

[0049] Figure 20 This is a schematic diagram of the urban railcar train set in Example 2.

[0050] Figure 21 This is a bottom view of the transport vehicle, the conveying hole, and the second rail conveying device in Embodiment 2. Detailed Implementation

[0051] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0052] Example 1

[0053] like Figures 1-19 As shown, a type of urban rail transit railcar includes a rail conveying system and three transport vehicles 4.

[0054] Rail conveying systems are typically installed on urban rail transit train sets. Generally, a first rail conveying device 1 is installed on the first and second cars, a third rail conveying device 3 is installed in the middle of the third car, and a third rail conveying device 3 is installed at the end of the third car. The rail conveying system includes the first rail conveying device 1, the second rail conveying device 2, and the third rail conveying device 3 arranged sequentially. The first two transport cars 4 each have two first rail conveying devices 1 spaced apart. The third transport car 4 has a conveying hole in its middle for the rail to pass through. The second rail conveying device 2 is located at the bottom of the third transport car 4 behind the conveying hole, and the third rail conveying device 3 is located at the bottom of the rear of the third transport car 4. The second rail conveying device 2 is installed corresponding to the conveying hole to transport the rail from above to below the transport car 4, or from below to above the transport car 4.

[0055] The first rail conveying device 1 includes a base 14, on which a conveying roller 11 for supporting and conveying the rail 5 is disposed. Both ends of the conveying roller 11 are fixed to the base 14 by roller brackets. The conveying roller 11 is equipped with a first conveying motor 12, which is a hydraulic motor. The first conveying motor 12 and the conveying roller 11 are driven by a transmission mechanism 13. In this embodiment, the transmission mechanism 13 is a belt, but it can also be replaced with a chain as needed. The rail 5 is conveyed by pressing down on the conveying roller 11 under its own weight.

[0056] The second rail conveying device 2 is used to lower or retract the rail 5 from the gap in the middle of the car. It includes a conveying mechanism 21 and a lifting mechanism 22 for adjusting the height of the conveying mechanism 21. The conveying mechanism 21 includes a base 211, a rotating arm 212, vertical rollers 213, support rollers 214, a driving flat roller 215, a second conveying motor 216, and a lifting cylinder 217. The base 211 is box-shaped, and the front and rear sides of the base 211 are provided with inlets and outlets for the rail 5 to pass through, forming a conveying channel for conveying the rail 5. The outer sides of the front and rear ends of the base 211 are provided with flared openings that communicate with the inlets and outlets. The flared openings are used to guide the rail 5 to enter. The length of the side extending from the bottom of the flared opening is longer than the other sides, forming a chute to support the rail 5. Inside the base 211, near the front and rear ends, there are a pair of vertical rollers 213 located on both sides of the inlets and outlets, which limit the lateral displacement of the rail 5 and prevent the rail 5 from tipping over.

[0057] The top of the base 211 has an opening, and a rotating arm 212 is provided above the base 211. The bottom side of the rotating arm 212 is provided with an active flat roller 215 located in the opening. The active flat roller 215 is used to press on the rail 5 and transport it. The bottom of the base 211 is provided with a support roller 214 located below the active flat roller 215. The rail 5 passes between the support roller 214 and the active flat roller 215. The front end of the rotating arm 212 is hinged to the top of the base 211 through a horizontally extending rotating shaft. The rear end of the rotating arm 212 is equipped with a pair of lifting cylinders 217. The two ends of the lifting cylinders 217 are respectively hinged to the rotating arm 212 and the base 211. The lifting cylinders 217 are hydraulic cylinders, and the rotation of the rotating arm 212 is realized through the lifting cylinders 217, thereby adjusting the clamping force of the active flat roller 215.

[0058] The active flat roller 215 is equipped with a second conveyor motor 216, which is fixed on the rotating arm 212. The output end of the second conveyor motor 216 is connected to the active flat roller 215. The active flat roller 215 is driven to rotate by the second conveyor motor 216. The top of the base 211 is provided with a clearance notch corresponding to the second conveyor motor 216 to facilitate the up and down movement of the second conveyor motor 216 and the active flat roller 215.

[0059] There are two lifting mechanisms 22, which are symmetrically arranged on the left and right sides of the base 211. Each lifting mechanism 22 includes a rotating lever 221, a lifting lever 222, a lifting cylinder 223, and a mounting base 225. The lifting lever 222 extends forward and backward, with one end hinged to the base 211. The two sides of the base 211 are provided with horizontally outward rotating shafts corresponding to the lifting lever 222. The end of the lifting lever 222 is provided with a sleeve hole for fitting onto the rotating shaft. The end of the rotating shaft is provided with a pin hole for a locking pin to pass through, and the lifting lever 222 is prevented from disengaging from the rotating shaft by a locking pin inserted into the pin hole.

[0060] The other end of the lifting lever 222 is hinged to one end of the rotating lever 221. The rotating lever 221 extends vertically, and the other end of the rotating lever 221 is provided with a hinge base 224, which is hinged to the vehicle body through the hinge base 224. The middle part of the lifting lever 222 is hinged to one end of the lifting cylinder 223, and the other end of the lifting cylinder 223 is also provided with a hinge base 224 for hinged to the vehicle body.

[0061] A pair of mounting bases 225 are mounted on the vehicle body at the rear of the base 211. Each mounting base 225 has a vertical groove on its opposite side for the base 211 to slide up and down. The left and right sides of the rear of the base 211 have vertical skirts for engaging in the grooves. The lifting cylinder 223 drives the lifting lever 222 to swing, thereby moving the base 211 up and down to adjust the height of the conveying mechanism 21.

[0062] The third rail conveying device 3 is used to lower the rail 5 to the ground or retrieve it from the ground. It includes a mounting frame 31 installed on the vehicle body, a lifting and translating mechanism 32 slidably installed on the mounting frame 31, and a conveying clamp installed on the lifting and translating mechanism 32. The conveying clamp is used to clamp the rail 5 at the waist.

[0063] The mounting bracket 31 includes a pair of symmetrically arranged vertical slides 312, each made of channel steel. The openings of the two slides 312 are opposite each other, allowing the lifting and translating mechanism 32 to move vertically. A crossbeam 313 connects the two slides 312, forming a single unit and improving strength while ensuring accurate relative positioning of the two slides 312. Ribs 314 connect both vertical slides 312 to the crossbeam 313 to enhance support stability. Mounting plates 311 for mounting on the vehicle body are provided on the opposite sides of the two vertical slides 312. In this embodiment, the mounting plates 311 are positioned near the top of the vertical slides 312.

[0064] The lifting and translating mechanism 32 includes a bracket 321 located between two vertical slides 312. A pair of vertically arranged lifting push cylinders 326 are arranged on the bracket 321 at intervals on the left and right. The two ends of the lifting push cylinders 326 are respectively hinged to the vehicle body or the bracket 321. The bracket 321 has ear plates 328 on both the left and right sides. A large roller 322 and a small roller 323 are arranged on the side of the two ear plates 328 that are far apart from each other. The lifting push cylinders 326 are hinged to the side of the two ear plates 328 that are close to each other.

[0065] The large rollers 322 and small rollers 323 on both sides are symmetrically arranged, and both are located within corresponding vertical grooves 312. The outer diameter of the large roller 322 matches the width of the vertical groove 312, allowing the support 321 to move vertically under the guidance of the large roller 322. The diameter of the small roller 323 is smaller than the width of the groove 312, allowing the support 321 to rotate a certain angle around the large roller 322 as the center of rotation.

[0066] The small roller 323 is aligned with the front of the large roller 322. The hinge point between the lifting cylinder 326 and the bracket 321 is located behind the large roller 322. Due to gravity, the front of the small roller 323 and the large roller 322 abuts against one side of the vertical slide rail 312. At this time, the lifting and translation mechanism 32 is in a horizontal position. When the lifting and translation mechanism 32 is subjected to external force, it can rotate backward about the axis of the large roller 322 until the small roller 323 abuts against the rear side of the vertical slide rail 312, thereby rotating a certain angle for self-adjustment.

[0067] The bottom side of the bracket 321 is provided with a horizontal sliding groove 327 extending to the left and right. A translation slider 324 is slidably connected in the horizontal sliding groove 327. The translation slider 324 is equipped with a translation push cylinder 325 extending to the left and right. Both the lifting push cylinder 326 and the translation push cylinder 325 are hydraulic cylinders. The two ends of the translation push cylinder 325 are respectively hinged to the bracket 321 and the translation slider 324, so that the translation slider 324 can move laterally along the horizontal sliding groove 327 under the drive of the translation push cylinder 325.

[0068] The conveying clamp is mounted on the translation slider 324. The conveying clamp includes a fixed conveying arm 33 and a movable conveying arm 34 spaced apart on the left and right. The rail 5 passes between the fixed conveying arm 33 and the movable conveying arm 34. Above the distance between the fixed conveying arm 33 and the movable conveying arm 34, a rear flat roller 336 and a front flat roller 337 are provided to limit the height of the top of the rail 5.

[0069] The fixed conveying arm 33 includes a first arm body 331 extending forward and backward, which is fixedly connected to the translation slider 324. The movable conveying arm 34 includes a second arm body 341 extending forward and backward, with the front end of the second arm body 341 hinged to the first arm body 331. A clamping cylinder 335 extending left and right is connected between the first arm body 331 and the second arm body 341. Both ends of the clamping cylinder 335 are respectively hinged to the first arm body 331 or the second arm body 341 through vertical pins.

[0070] Clamping rollers 35 are arranged opposite each other at the rear ends of the first arm 331 and the second arm 341. The clamping rollers 35 on both the left and right sides are used to clamp the waist of the rail 5. Clamping conveyor wheels 36 are arranged in the middle of the first arm 331 and the second arm 341. The clamping conveyor wheels 36 are also used to clamp the waist of the rail 5. The clamping conveyor wheels 36 are equipped with clamping conveyor motors 37. The clamping conveyor motors 37 are hydraulic motors, so as to clamp the rail 5 while also conveying the rail 5.

[0071] Both upper and lower sides of the two clamping conveyor wheels 36 are chamfered with the same slope as the lower parts of the top sides of the rail 5. When conveying the rail 5, due to the gravity of the rail 5, the lower parts of the top sides of the rail 5 contact the chamfered upper parts of the two clamping conveyor wheels 36, which can prevent the rail 53 from falling off. At the same time, because the slope of the chamfer matches that of the rail 5, it can prevent the rail 5 or the clamping conveyor wheels 36 from being scratched. At this time, the clamping rollers 35 are located on both sides of the rail 5 and at a certain distance from the rail 5, which can accommodate the rail 5 to rotate laterally at a certain angle relative to the third rail conveying device 3, reducing the jamming caused by the rail 5 not being parallel to the car body. The front flat roller 336 and the rear flat roller 337 are a certain distance from the top of the rail 5. The rail 5 can rotate vertically at a certain angle relative to the fixed conveying arm 33 and the movable conveying arm 34. At the same time, because the lifting and translating device 32 can drive the fixed conveying arm 33 and the movable conveying arm 34 to rotate at a certain angle relative to the mounting frame 31, the rail 5 can be tilted at a certain angle for conveying without jamming.

[0072] The work process is as follows:

[0073] Track winding operation:

[0074] S1. Control the lateral and vertical movement of the third rail conveying device 3, so that after the conveying wheels 333 and 343 reach both sides of the rail 5, they clamp the rail web of the rail 5, lift the rail 5 to a certain height, and then convey it towards the second rail conveying device 2. Figure 12 At the same time, the train moves backward at the same speed as the conveying rails, keeping rail 5 stationary with respect to the ground.

[0075] S2. Control the vertical movement of the second rail conveying device 2, so that the rail 5 enters the second rail conveying device 2, clamps the rail, and continues to convey.

[0076] S3. Control the second rail conveying device 2 to move vertically, so that the rail 5 reaches the first rail conveying device 1 and contacts the conveying roller 11. Start the first rail conveying device 1 and continue conveying. After the rail 5 leaves the ground, the train stops. The rail detaches from the third rail conveying device 3 and the second rail conveying device 2 and reaches the designated position.

[0077] Rail unloading operation:

[0078] S5. Control the first rail conveying device 1 to convey the rail 5 to the second rail conveying device 2.

[0079] S6. Control the vertical movement of the second rail conveying device 2, so that the rail 5 enters the second rail conveying device 2, clamps the rail, and continues to convey.

[0080] S7. Control the lateral and vertical movement of the third rail conveying device 3. Rail 5 enters the third rail conveying device 3, is clamped, and continues to be conveyed. Simultaneously, the lateral and vertical movement is controlled to control the landing position of rail 5. Before rail 5 lands, the train moves forward at the same speed as the conveyed rail to keep rail 5 stationary with respect to the ground. Rail 5 leaves each conveying device sequentially, and after landing on the ground, the train stops.

[0081] The aforementioned rail conveying system has a simple configuration, fulfilling the function of unloading and receiving rail 5 from one end of the train set. To allow rail 5 to be unloaded and received from any position and direction within the train set, the rail conveying system can be equipped with two first rail conveying devices 1, one second rail conveying device 2, and two third rail conveying devices 3 on each car. The first rail conveying device 1 can move longitudinally along the car body to avoid obstructing the passage of rail 5.

[0082] Example 2

[0083] like Figure 20 and Figure 21 As shown, the difference between this embodiment and Embodiment 1 is that: each of the transport vehicles 4 is provided with multiple first rail conveying devices 1 at intervals, and each of the two ends of the transport vehicle 4 is provided with a third rail conveying device 3. The second rail conveying device 2 is provided at the bottom of the transport vehicle 4. Each transport vehicle 4 is provided with a conveying hole 41 to transport the rail from above the transport vehicle 4 to below the transport vehicle 4, or from below the transport vehicle 4 to above the transport vehicle 4.

[0084] Specifically, in this embodiment, two transport vehicles 4 are equipped with a second rail conveying device 2 at their bottoms. Each transport vehicle 4 has two conveying holes 41, and the second rail conveying device 2 is positioned between the two conveying holes. Combined with the first rail conveying device 1 and the third rail conveying device 3 provided in each transport vehicle 4, rails can be unloaded or retrieved in different travel directions. The bottom of the transport vehicle 4 is also equipped with a crisscrossing reinforcing structure.

Claims

1. A rail conveying system, characterized in that: The system includes a first rail conveying device (1), a second rail conveying device (2), and a third rail conveying device (3) arranged in sequence. The first rail conveying device (1) is used to convey rails (5); the second rail conveying device (2) is used to lower or retract the rails (5) from the gap in the middle of the vehicle; and the third rail conveying device (3) is used to lower the rails (5) to the ground or retract them from the ground. The second rail conveying device (2) includes a conveying mechanism (21) and a lifting mechanism (22) for adjusting the height of the conveying mechanism (21); the front and rear sides of the base (211) are provided with inlets and outlets for the rails (5) to pass through, forming a conveying channel for conveying the rails (5); a rotating arm (212) is provided on the top of the base (211), the front end of the rotating arm (212) is hinged to the top of the base (211) through a horizontally extending rotating shaft, and the rear end of the rotating arm (212) is equipped with a pair of lifting cylinders (217), the two ends of the lifting cylinders (217) are respectively hinged It is connected to the rotating arm (212) and the base (211), and the clamping force of the active flat roller (215) is adjusted by the lifting cylinder (217); the top of the base (211) is provided with an opening, and the bottom side of the rotating arm (212) is provided with an active flat roller (215) extending from the opening into the conveying channel. The active flat roller (215) is used to press on the rail (5) and carry out the conveying. The bottom of the conveying channel is provided with a support roller (214) corresponding to the active flat roller (215), and the rail (5) passes between the support roller (214) and the active flat roller (215). The third rail conveying device (3) includes a mounting frame (31) mounted on the car body, a lifting and translating mechanism (32) slidably mounted on the mounting frame (31), and a conveying clamp mounted on the lifting and translating mechanism (32), the conveying clamp being used to clamp the waist of the rail (5).

2. The rail conveying system according to claim 1, characterized in that: The first rail conveying device (1) includes a base (14), and a conveying roller (11) for supporting and conveying the rail (5) is provided on the base (14). Both ends of the conveying roller (11) are fixed on the base (14) by roller brackets. The conveying roller (11) is equipped with a first conveying motor (12). The first conveying motor (12) is a hydraulic motor. The first conveying motor (12) and the conveying roller (11) are driven by a transmission mechanism (13). The rail (5) is conveyed by pressing the conveying roller (11) with its own weight. The active flat roller (215) is equipped with a second conveyor motor (216), which is fixed on the rotating arm (212). The output end of the second conveyor motor (216) is connected to the active flat roller (215). The top of the base (211) is provided with a clearance notch corresponding to the second conveyor motor (216) to facilitate the up and down movement of the second conveyor motor (216) and the active flat roller (215).

3. The rail conveying system according to claim 1, characterized in that: There are two lifting mechanisms (22), which are symmetrically arranged on the left and right sides of the base (211). Each lifting mechanism (22) includes a rotating lever (221), a lifting lever (222), a lifting cylinder (223), and a mounting base (225). The lifting lever (222) extends back and forth, and one end is hinged to the base (211). The two sides of the base (211) are provided with horizontally outward rotating shafts corresponding to the lifting lever (222). The end of the lifting lever (222) is provided with a sleeve hole for fitting onto the rotating shaft. The end of the rotating shaft is provided with a pin hole for the locking pin to pass through, and the lifting lever (222) is prevented from disengaging from the rotating shaft by the locking pin inserted into the pin hole. The other end of the lifting lever (222) is hinged to one end of the rotating lever (221). The rotating lever (221) extends vertically, and the other end of the rotating lever (221) is provided with a hinge base (224), which is hinged to the vehicle body. The middle part of the lifting lever (222) is hinged to one end of the lifting cylinder (223), and the other end of the lifting cylinder (223) is also provided with a hinge base (224) for hinged to the vehicle body. There are two lifting mechanisms (22), which are symmetrically arranged on the left and right sides of the base (211). The lifting mechanism (22) includes a rotating lever (221), a lifting lever (222), a lifting cylinder (223), and a mounting base (225); the lifting lever (222) extends forward and backward, with one end hinged to the base (211). The base (211) has horizontally outwardly extending rotating shafts on both sides corresponding to the lifting lever (222). The lifting lever (222) has a sleeve hole for fitting onto the rotating shaft at this end. The rotating shaft has a pin hole for the locking pin to pass through, and the lifting lever (222) is prevented from disengaging from the rotating shaft by the locking pin inserted into the pin hole. The other end of the lifting lever (222) is hinged to one end of the rotating lever (221). The rotating lever (221) extends vertically. The other end of the rotating lever (221) is provided with a hinge base (224) and is hinged to the vehicle body through the hinge base (224). The middle part of the lifting lever (222) is hinged to one end of the lifting cylinder (223). The other end of the lifting cylinder (223) is also provided with a hinge base (224) for hinged to the vehicle body.

4. A rail conveying system according to claim 3, characterized in that: A pair of mounting seats (225) are disposed and fixed to the vehicle body at the rear of the base (211), and each mounting seat (225) has a vertical groove on its opposite side for the base (211) to slide up and down. The left and right sides of the rear of the base (211) are vertically provided with skirts for locking in the grooves. The lifting cylinder (223) drives the lifting lever (222) to swing, thereby driving the base (211) to move up and down, so as to realize the height adjustment of the conveying mechanism (21).

5. A rail conveying system according to claim 4, characterized in that: The base (211) is equipped with a pair of vertical rollers (213) located on both the front and rear ends of the machine. The vertical rollers (213) on both sides restrict the lateral displacement of the rail (5) and prevent the rail (5) from overturning.

6. A rail conveying system according to claim 3, characterized in that: The outer sides of both the front and rear ends of the base (211) are provided with flared openings that communicate with the entrance and exit. The flared openings are used to guide the rail (5) to enter. The length of the side extending from the bottom of the flared opening is longer than the other sides, forming a chute to support the rail (5).

7. A rail conveying system according to claim 1, characterized in that: The mounting bracket (31) includes a pair of vertical slides (312) arranged symmetrically on the left and right. The vertical slides (312) are all channel steel structures, and the slots of the pair of vertical slides (312) are arranged opposite to each other for vertical movement of the lifting and translation mechanism (32). A crossbeam (313) connects the two vertical slides (312) to form a whole through the crossbeam (313). The two vertical slides (312) are provided with mounting plates (311) for mounting on the vehicle body on the side of the two vertical slides (312) that are far apart from each other.

8. A rail conveying system according to claim 7, characterized in that: The lifting and translating mechanism (32) includes a bracket (321) located between two vertical slides (312). A pair of vertically arranged lifting push cylinders (326) are arranged on the bracket (321) at intervals on the left and right. The two ends of the lifting push cylinders (326) are respectively hinged to the vehicle body or the bracket (321). Large rollers (322) and small rollers (323) are arranged on both the left and right sides of the bracket (321). The bracket (321) is symmetrically arranged, and the large roller (322) and the small roller (323) are both located in the corresponding vertical groove (312). The outer diameter of the large roller (322) matches the groove width of the vertical groove (312), so that the bracket (321) can move vertically under the guidance of the large roller (322). The diameter of the small roller (323) is smaller than the groove width of the groove (312), so that the bracket (321) can rotate a certain angle with the large roller (322) as the rotation center. The small roller (323) is aligned with the large roller (322) on one side, and the hinge point of the lifting push cylinder (326) and the bracket (321) is located on the other side of the large roller (322). Due to gravity, the side of the small roller (323) that is aligned with the large roller (322) abuts against one side of the vertical slide groove (312). The bottom side of the bracket (321) is provided with a horizontal sliding groove (327) extending to the left and right. A translation slider (324) is slidably connected in the horizontal sliding groove (327). The translation slider (324) is equipped with a translation push cylinder (325) extending to the left and right. Both the lifting push cylinder (326) and the translation push cylinder (325) are hydraulic cylinders. The two ends of the translation push cylinder (325) are respectively hinged to the bracket (321) and the translation slider (324), so that the translation slider (324) can move laterally along the horizontal sliding groove (327) under the drive of the translation push cylinder (325).

9. A rail conveying system according to claim 8, characterized in that: The conveying clamp is mounted on the translation slider (324). The conveying clamp includes a fixed conveying arm (33) and a movable conveying arm (34) spaced apart on the left and right. The rail (5) passes between the fixed conveying arm (33) and the movable conveying arm (34). A rear flat roller (336) and a front flat roller (337) are provided above the distance between the fixed conveying arm (33) and the movable conveying arm (34) to limit the height of the top of the rail (5). The fixed conveying arm (33) includes a first arm body (331) extending forward and backward, which is fixedly connected to the translation slider (324). The movable conveying arm (34) includes a second arm body (341) extending forward and backward, with the front end of the second arm body (341) hinged to the first arm body (331). A clamping cylinder (335) extending left and right is connected between the first arm body (331) and the second arm body (341). Both ends of the clamping cylinder (335) are respectively hinged to the first arm body (331) or the second arm body (341) through vertical pins. The first arm (331) and the second arm (341) are provided with clamping rollers (35) at their rear ends. The clamping rollers (35) on both the left and right sides are used to clamp the waist of the rail (5). The first arm (331) and the second arm (341) are provided with clamping conveyor wheels (36) in the middle. The clamping conveyor wheels (36) are also used to clamp the waist of the rail (5). The clamping conveyor wheels (36) are equipped with clamping conveyor motors (37).

10. A type of urban railcar, characterized in that: The rail conveying system includes any one of claims 1 to 9, and further includes a plurality of transport vehicles (4). The first rail conveying device (1), the second rail conveying device (2) and the third rail conveying device (3) are sequentially arranged on each transport vehicle (4) along the rail conveying direction. The second rail conveying device (2) and the third rail conveying device (3) are both arranged on the bottom side of the transport vehicle (4). The transport vehicle (4) with the second rail conveying device (2) is also provided with a conveying hole for the rail to pass through.

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