Subway rail collecting and replacing equipment

Abstract

The utility model provides subway rail collecting and replacing equipment which comprises a hoisting rail collecting device, a steel rail transportation flatcar and a rail car which are sequentially connected, the rail car is mainly used for dragging the hoisting rail collecting device and the steel rail transportation flatcar to run along a line, and a steel rail recycling device is arranged on the rail transportation flatcar and the hoisting rail collecting device. The lifting rail collecting device comprises a subway flat car, a machine arm installed on the subway flat car through a stand column, a rail used for an electric hoist to operate and a slide wire mechanism used for supplying power to the electric hoist are arranged on the lower portion of the machine arm, and the lifting appliance is connected through the electric hoist and comprises a lifting frame, a pulley block and a transverse moving rail clamping mechanism arranged on the lifting frame. The pulley block is connected with the electric hoist through a steel wire rope, and the transverse moving rail clamping mechanisms are installed at the two ends of the hanging bracket and used for hoisting two steel rails at the same time and transversely moving. According to the method and equipment, the problems existing in an existing method and equipment are solved, the construction efficiency of rail collecting operation is further improved, meanwhile, the equipment can be applied to rail changing construction operation of a railway line, and multiple purposes are achieved through one machine.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a subway rail collecting and changing device. Background Art

[0002] With the continuous construction and development of domestic subways, traditional low-speed subways with speeds below 100km / h have become increasingly unable to meet people's travel needs, and more and more long-distance high-speed subway lines are being built. The higher speed of the high-speed subway system means that there are higher requirements for subway lines, which means that there are higher requirements for track laying technology and quality. At present, the track laying projects of high-speed subways require that rails are not allowed to be laid directly during the track laying process. Tool rails are required to be used for positioning and the roadbed must be poured before replacing new rails to ensure the quality of the track and minimize possible damage to the track during the track laying process.

[0003] At present, the equipment used for track replacement in this construction method mainly includes simple rail-mounted small cranes, rail cars, subway flatbed cars and cranes. The rail-mounted small crane is mainly used to lift the tool rails from the ballast and transport them to the subway flatbed car; the rail car tows the subway flatbed car to transport the tool rails to the construction wellhead; the crane lifts the tool rails from the subway flatbed car to the ground rail storage area. Construction process: ① Push the rail flatbed car to the vicinity of the working surface, and park the two rail-mounted small cranes through temporary tracks to the lifting position of the tool rails to be collected; ② Workers separate the tool rails to be collected from the ballast and remove the track fasteners; ③ Use two rail-mounted small cranes to lift, transport and place the tool rails to be collected on the rail flatbed car; ④ The equipment group retreats to continue collecting other tool rails to be collected until the subway flatbed car is loaded to the rated load; ⑤ The rail car tows the subway flatbed car to the construction wellhead and the crane lifts the collected tool rails to the ground rail storage area; ⑥ The rail car tows the subway flatbed car back to the tunnel to continue the rail collection operation. This construction method has the following problems:

[0004] (1) When the rail-mounted small crane collects the rails, it needs to run on temporary rails, so the temporary rails need to exist for a long time, which reduces the circulation efficiency of the temporary rails and increases the construction cost;

[0005] (2) The structure of the rail-mounted small crane is too simple. Although the cost is low, the safety and construction efficiency are low;

[0006] (3) Two rail-mounted small cranes are required to lift the tool rails at the same time. The control system of the rail-mounted small crane is simple, the synchronization is poor, and there are safety hazards;

[0007] (4) Rail-mounted cranes usually have only one span and can only be used on one line. If they are used on other lines, it is necessary to modify the equipment or manufacture a new machine.

[0008] The utility model aims at the shortcomings of the existing rail collection methods and equipment, and designs a new subway track laying rail collection and replacement equipment and method. The method and equipment not only solve the problems existing in the existing methods and equipment, but also further improve the construction efficiency of the rail collection operation. At the same time, the equipment can also be used in the rail replacement construction of railway lines, so that one machine can be used for multiple purposes. Utility Model Content

[0009] The utility model aims to provide a subway rail collecting and replacing equipment which can improve the construction efficiency.

[0010] The utility model is achieved in this way:

[0011] The utility model provides a subway rail collecting and changing equipment, characterized in that it comprises a hoisting rail collecting device, a rail transport flat car and a rail car connected in sequence, the rail car is mainly used for pulling the hoisting rail collecting device and the rail transport flat car to run along the line, and a rail recovery device is arranged on the rail transport flat car and the hoisting rail collecting device, the hoisting rail collecting device comprises a subway flat car, an arm installed on the subway flat car through a column, a track for powering an electric hoist and a sliding wire mechanism for powering the electric hoist are arranged at the lower part of the arm, and a sling connected through the electric hoist, the sling comprises a hanger, a pulley block, and a transverse rail clamping mechanism arranged on the hanger, the pulley block is connected to the electric hoist through a steel wire rope, the transverse rail clamping mechanism is installed at both ends of the hanger, and the transverse rail clamping mechanism is used for hoisting two rails at the same time and moving them transversely.

[0012] According to the above technical solution, the transverse track clamping mechanism includes a screw rod installed on the hanger through a fixed seat, and sliding blocks are symmetrically installed at both ends of the screw rod. The sliding blocks and the screw rod are configured through a screw rod thread pair, and a track clamp is connected to the lower end of each sliding block.

[0013] According to the above technical solution, the left and right sides of the screw rod are respectively processed with right-handed and right-handed threads, and the sliding blocks are correspondingly divided into left-handed and right-handed, and are respectively installed on both sides of the screw rod.

[0014] According to the above technical solution, a driving mechanism is arranged at one end of the screw rod.

[0015] According to the above technical solution, the driving mechanism is a rotating rocker connected to one end of the lead screw.

[0016] According to the above technical scheme, the rail return device includes an active supporting wheel group and a driven supporting wheel group. Multiple groups of driven supporting wheel groups are respectively provided on the subway flatbed car for hoisting the rail collecting device and the subway flatbed car for rail transport flatbed car, and multiple groups of active supporting wheel groups are provided on the subway flatbed car for rail transport flatbed car. The active supporting wheel group is driven by a reduction motor.

[0017] According to the above technical solution, there are also legs for support and can be retracted and extended.

[0018] According to the above technical solution, the subway flatbed car, rail transport flat car and rail car of the hoisting rail collecting device are connected by a trolley hook.

[0019] A method for collecting and changing rails using the above-mentioned subway rail collecting and changing equipment is characterized by comprising the following steps:

[0020] 1) Construction preparation

[0021] Prepare rail disassembly tools, inspect and maintain rail replacement equipment and crane equipment, and deploy construction personnel;

[0022] 2) Equipment arrival

[0023] Push the subway rail receiving and replacing equipment from the construction wellhead to the vicinity of the construction work surface, and support the outriggers in front of the subway rail receiving and replacing equipment in place;

[0024] 3) Remove the rails

[0025] Use disassembly tools to remove the fasteners that fix the tool rail to be collected, and use tools such as crowbars to separate the tool rail to be collected from the ballast bed, so that the tool rail is free and not subject to external forces;

[0026] 4) Shipping rails

[0027] a. Start the rail collecting and changing equipment, and send the lifting device to the front end of the arm through the electric hoist;

[0028] b. Lower the spreader, and use the spreader's transverse rail clamping mechanism to lift the tool rail to be collected, and adjust the distance between the tool rails;

[0029] c. Lift the tool rail by means of a hoist and an electric hoist and place it on the rail return device of the rail receiving and changing equipment;

[0030] d. Retract the front legs of the rail collection and replacement equipment, and move the equipment toward the construction wellhead by a distance equal to the length of the tool rail;

[0031] e. Repeat steps b, c, and d to continuously hoist multiple tool rails onto the rail receiving and changing equipment;

[0032] f. After multiple tool rails are transported to the rail transport flat car through the rail return device, disconnect the trolley hook, cable, and brake pipeline between the hoisting rail receiving device and the rail transport flat car;

[0033] 5) Storage of rails

[0034] a. A rail transport flat car carrying multiple tool rails is pulled by a rail car and moved to the construction wellhead;

[0035] b. Use a crane to lift multiple tool rails from the rail transport flat car to the rail storage area on the ground;

[0036] 6) Empty car return

[0037] The rail car pulls the rail transport flat car to the working surface and connects it with the hoisting rail collecting device; it is ready to continue the rail collecting operation;

[0038] 7) Repeat steps 3), 4), 5), and 6) until the tool rails of the section are collected or the working time is over, and move the rail collection and replacement equipment to the construction wellhead to wait for the next rail collection operation.

[0039] The beneficial effects of the utility model are:

[0040] (1) The solution adopted by the utility model is that an electric hoist drives a lifting device with a transverse movement function to realize the transverse movement function of the rail, and this solution can lift two rails at a time. This method and device not only solve the problems existing in the existing methods and devices, but also further improve the construction efficiency of the rail collection operation.

[0041] (2) Since the rail receiving and replacing equipment of the utility model is designed based on the subway flatbed car and adopts the standard rail running mode, there is no need to lay temporary rails, which saves costs;

[0042] (3) Since this equipment uses a hoist to hoist the tool rail, only one machine is needed to complete the rail collection and replacement operation. The operation process is highly safe, the equipment runs fast, and the construction efficiency is high;

[0043] (4) Since this equipment runs on standard track gauge, it can be used for track laying construction on all high-speed subway lines without modification, and the equipment has a high reuse rate.

[0044] (5) Since the equipment meets the requirements of subway vehicle limits and the solution adopted by the utility model is to use the forward-extending machine arm, it can be used not only in new line track laying projects, but also in old line track replacement maintenance construction. It has strong adaptability and one machine has multiple functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A front view of a rail recovery and replacement device provided in an embodiment of the utility model.

[0047] Figure 2 A side view of a rail recovery and replacement device provided in an embodiment of the utility model.

[0048] Figure 3 A schematic structural diagram of a hoisting and rail collecting device provided in an embodiment of the utility model.

[0049] Figure 4 A schematic structural diagram of a sling provided in an embodiment of the utility model.

[0050] Figure 5 A schematic structural diagram of a transverse rail clamping mechanism provided in an embodiment of the utility model.

[0051] Figure 6 A schematic structural diagram of a rail transport flat car provided in an embodiment of the utility model.

[0052] Figure 7 Flow chart of the track closing construction method provided by the embodiment of the utility model

[0053] Figure 8-Figure 12 A schematic diagram of the state process of the track collection construction method provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0057] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0058] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0059] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0061] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0062] like Figure 1 , 2As shown, this embodiment provides a subway rail collection and replacement equipment, including a lifting rail collection device 1, a rail transport flat car 3 and a rail car 4 connected in sequence, wherein the rail car 4 is mainly used to tow the lifting rail collection device 1 and the rail transport flat car 3 to run along the line, and a rail recovery device 2 is arranged on the rail transport flat car 3 and the lifting rail collection device 1 for recovering the rails. The lifting rail collection device 1, the rail transport flat car 3 and the rail car 4 are connected by a trolley hook.

[0063] like Figure 3 As shown, the hoisting rail collecting device 1 is mainly composed of a hoist 5, an electric hoist 6, an arm 7, a subway flatbed car 8, a column 9, an electric control system 10 and a power supply system 11; the column 9 is installed on the subway flatbed car 8, and its top is connected to the arm 7 through a pin shaft. The lower part of the arm 7 is designed with a track for the electric hoist 6 to run and a sliding wire mechanism for supplying power to the electric hoist; the electric hoist 6 is connected to the hoist 5 through a wire rope; the power supply system 11 is installed at the tail of the arm 7, and the electric hoist 6 can drive the hoist 5 to rise and fall, and can also move forward and backward along the track at the lower part of the arm 7. The power supply system 11 mainly supplies power to the hoisting rail collecting device 1 and the rail return device 2, and can use either a battery pack or a generator set.

[0064] like Figure 4 As shown, the sling 5 is mainly composed of a hanger 12, a pulley block 13 and a transverse rail clamping mechanism 14. Two pulley blocks 13 are installed in the middle of the hanger 12, and two transverse rail clamping mechanisms 14 are installed at both ends of the hanger 12. The pulley block 13 is connected to the electric hoist 6 through a wire rope. The transverse rail clamping mechanism 14 can lift two rails at the same time and move them transversely.

[0065] like Figure 5 As shown, the transverse rail clamping mechanism 14 is mainly composed of a sliding block 15, a screw rod 16, a fixed seat 17, a rail clamp 18 and a rocker 19. The left and right sides of the screw rod 16 are respectively processed with right-handed and left-handed threads. At the same time, the sliding block 15 is also divided into left-handed and right-handed, and is installed on both sides of the screw rod 16. The screw rod 16 is installed on the hanger 12 through the fixed seat 17, and a rocker 19 is installed at one end. A rail clamp 18 is connected to the lower part of each sliding block 15. The screw rod 16 is rotated by rotating the rocker 19, and the rail clamp 18 is driven by the sliding block 15 to move left and right along the screw rod 16, thereby realizing the transverse movement of the rail.

[0066] like Figure 6 As shown, the rail transport flat car 3 is mainly composed of two subway flat cars 8 connected together, and a trolley hook is installed at both ends, which can be connected with the subway flat car 8 and the rail car 4 of the lifting and collecting rail device 1 respectively. The subway flat cars 8 are respectively installed with rail return devices 2. The rail return devices 2 can transport the rails from the lifting and collecting rail device 1 to the rail transport flat car 3.

[0067] The rail return device 2 is mainly composed of an active roller group and a driven roller group. Three sets of driven roller groups are respectively installed on the subway flat car 8 of the lifting rail receiving device 1 and the subway flat car 8 of the rail transport flat car 3 connected to the rail car 4, while three sets of active roller groups are installed on the subway flat car 8 of the rail transport flat car 3 connected to the subway flat car 8 of the lifting rail receiving device 1. The active roller group is directly driven by a reduction motor and powered by the power supply system 11 of the lifting rail receiving device 1.

[0068] like Figure 8-12 As shown, the method for performing rail collection operation using the above-mentioned rail recovery and replacement equipment includes the following steps:

[0069] 1) Construction preparation

[0070] Prepare rail dismantling tools, check and maintain rail receiving and replacing equipment, cranes and other equipment, and deploy construction personnel.

[0071] 2) Equipment arrival

[0072] Push the rail receiving and changing equipment from the construction wellhead to the vicinity of the construction working surface, and support the legs in front of the rail receiving and changing equipment into place.

[0073] 3) Remove the rails

[0074] Workers use disassembly tools to remove the fasteners that secure the tool rail to be collected, and use tools such as crowbars to separate the tool rail to be collected from the roadbed, so that the tool rail is free and not subject to external forces.

[0075] 4) Shipping rails

[0076] a. Start the rail collection and replacement equipment, and use the electric hoist ⑥ to send the lifting device ⑤ to the front end of the machine arm ⑦ (above the tool rail to be collected);

[0077] b. Lower the spreader ⑤ and use the horizontal rail clamping mechanism of the spreader ⑤ Lift the tool rail to be collected and adjust the distance between the tool rails;

[0078] c. Lift the tool rail by the lifting device ⑤ and the electric hoist ⑥ and place it on the rail return device ② of the rail receiving and changing equipment;

[0079] d. Retract the front legs of the rail collection and replacement equipment, and move the equipment toward the construction wellhead by a distance equal to the length of the tool rail;

[0080] e. Repeat steps b, c, and d to continuously hoist 24 tool rails onto the rail receiving and changing equipment;

[0081] f. After the 24 tool rails are transported to the rail transport flat car ③ through the rail return device ②, disconnect the trolley hook, cable, brake pipe, etc. between the hoisting rail receiving device ① and the rail transport flat car ③;

[0082] 5) Storage of rails

[0083] a. The rail transport flat car ③ carrying 24 tool rails is pulled by the rail car ④ to the construction wellhead;

[0084] b. Use a crane to lift 24 tool rails from the rail transport flat car ③ to the rail storage area on the ground;

[0085] 6) Empty car return

[0086] The rail car ④ pulls the rail transport flat car ③ to the working surface and is connected with the hoisting rail collecting device ①; prepare to continue the rail collecting operation.

[0087] 7) Repeat steps 3), 4), 5), and 6) until the tool rails of the section are collected or the working time is over, and move the rail collection and replacement equipment to the construction wellhead to wait for the next rail collection operation.

[0088] The beneficial effects of the utility model are:

[0089] (1) Since the rail receiving and replacing equipment of the utility model is designed based on the subway flatbed car and adopts the standard rail running mode, there is no need to lay temporary rails, which saves costs;

[0090] (2) Since this equipment uses a hoist to hoist the tool rail, only one unit is needed to complete the rail collection and replacement operation. The operation process is highly safe, the equipment runs fast, and the construction efficiency is high;

[0091] (3) Since this equipment runs on standard track gauge, it can be used for track laying construction on all high-speed subway lines without modification, and the equipment has a high reuse rate.

[0092] (4) Since this equipment meets the requirements of subway vehicle limits, it can be used not only in new line track laying projects, but also in old line track replacement and maintenance construction. It has strong adaptability and multi-functionality.

[0093] The embodiments described above are part of the embodiments of the utility model, but not all of the embodiments. The detailed description of the embodiments of the utility model is not intended to limit the scope of the utility model claimed for protection, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A subway rail receiving and changing equipment, characterized in that: It includes a lifting and rail collecting device, a rail transport flat car and a rail car connected in sequence. The rail car is mainly used to tow the lifting and rail collecting device and the rail transport flat car to run along the line. The rail transport flat car and the lifting and rail collecting device are equipped with a rail recovery device. The lifting and rail collecting device includes a subway flat car, an arm installed on the subway flat car through a column, a track for powering an electric hoist and a sliding wire mechanism for powering the electric hoist at the lower part of the arm, and a hoist connected through the electric hoist. The hoist includes a hanger, a pulley block, and a transverse rail clamping mechanism arranged on the hanger. The pulley block is connected to the electric hoist through a wire rope. The transverse rail clamping mechanism is installed at both ends of the hanger. The transverse rail clamping mechanism is used to lift two rails at the same time and move them laterally.

2. The subway rail receiving and changing equipment according to claim 1, characterized in that: The transverse rail clamping mechanism includes a screw rod installed on the hanger through a fixed seat, and sliding blocks are symmetrically installed at both ends of the screw rod. The sliding blocks and the screw rod are configured through a screw rod thread pair, and a rail clamp is connected to the lower end of each sliding block.

3. The subway rail receiving and changing equipment according to claim 2, characterized in that: The left and right sides of the screw rod are respectively processed with right-handed and left-handed threads, and the sliding blocks are correspondingly divided into left-handed and right-handed, and are respectively installed on both sides of the screw rod.

4. The subway rail receiving and changing equipment according to claim 1 or 2, characterized in that: A driving mechanism is arranged at one end of the screw rod.

5. The subway rail receiving and changing equipment according to claim 4, characterized in that: The driving mechanism is a rotating rocker connected to one end of the lead screw.

6. The subway rail receiving and changing equipment according to claim 1 or 2, characterized in that: The rail recovery device includes an active supporting wheel group and a driven supporting wheel group. A plurality of driven supporting wheel groups are respectively arranged on the subway flatbed car for hoisting the rail recovery device and the subway flatbed car for rail transport flatbed car, and a plurality of active supporting wheel groups are arranged on the subway flatbed car for rail transport flatbed car. The active supporting wheel groups are driven by a reduction motor.

7. The subway rail receiving and changing equipment according to claim 1 or 2, characterized in that: The utility model is also provided with supporting legs which can be retracted and extended.

8. The subway rail receiving and changing equipment according to claim 1 or 2, characterized in that: The subway flatbed car, the rail transport flat car and the rail car of the hoisting rail collecting device are connected by a trolley hook.

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