Crane for mounting floor of subway train

Abstract

The invention relates to the technical field of hoisting, and discloses a subway train floor mounting crane which comprises a base, a supporting mechanism and a suspension mechanism. The supporting mechanism comprises a supporting column fixedly connected with the base, a supporting table is fixedly connected to the end of the supporting column, telescopic sliding rods are slidably connected to the two sides of the supporting table, and telescopic tables are fixedly connected to the ends of the telescopic sliding rods; the suspension mechanism comprises a rotating seat arranged in the middle of the telescopic table, the end of the rotating seat is in sliding connection with transverse moving hanging brackets, the two transverse moving hanging brackets synchronously move in the opposite directions, a winding device is arranged at the end of one transverse moving hanging bracket, a suspension rope is wound around the winding device, and a fixing head for fixing a floor is arranged at the free end of the suspension rope. Through synchronous reverse front and back movement of the transverse moving hanging bracket, the crane can stably move a floor in a small space in the compartment body, manual carrying is not needed, and the operation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the hoisting technology field, specifically to a floor installation crane for a subway train. BACKGROUND

[0002] The urban rail transit vehicle type refers to the type of vehicle used for urban rail transit such as subway, light rail, city rapid rail, monorail, and tram. During the manufacturing process of the car body of the subway, the car body frame is first subjected to welding and die-casting processing, and then other components need to be installed inside the car body frame, at which time the floor installation process is involved.

[0003] Due to the heavy weight of the floor itself, conventional manual handling will affect the processing efficiency, and the top of the car body frame is in a closed state, so the conventional crane cannot complete the carrying and moving of the floor, and therefore a special crane needs to be designed for the floor. SUMMARY

[0004] The present application provides a floor installation crane for a subway train, which solves the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A floor installation crane for a subway train, comprising a base, a support mechanism and a suspension mechanism; the support mechanism comprises a support column fixedly connected with the base, the end of the support column is fixedly connected with a support table, the two sides of the support table are slidably connected with telescopic slide rods, the ends of the telescopic slide rods are fixedly connected with telescopic tables, and the spacing between the two telescopic tables and the support table is the same; the suspension mechanism comprises a rotating seat arranged in the middle of the telescopic table, the end of the rotating seat is slidably connected with a transverse moving hanger, the two transverse moving hangers move synchronously in opposite directions, one end of one of the transverse moving hangers is provided with a winding device, the outer part of the winding device is wound with a suspension rope, the free end of the suspension rope is provided with a fixed head for fixing the floor, and the end of the other transverse moving hanger is provided with a counterweight, the counterweight and the winding device are arranged symmetrically with respect to the center circumference of the support table.

[0007] As a preferred technical solution of the present application, the rotating seat is rotatably connected with the support table, and one end of the rotating seat close to the ground is provided with an angle limiting assembly for limiting the rotation of the rotating seat. The angle limiting assembly comprises limiting strips arranged on both sides of the telescopic table, one side of the rotating seat close to the ground is provided with two supporting plates, one supporting plate is arranged in parallel with the transverse moving hanger, and the other supporting plate is arranged perpendicular to the transverse moving hanger, a limiting plate is arranged on the supporting plate and matched with the limiting strip, and after the limiting plate is rotated to contact with the limiting strip, the angle of the rotating seat relative to the support table is limited.

[0008] As a preferred technical scheme of the present application, the middle part of the rotating seat is rotationally connected with a rotating shaft, the end of the rotating shaft is provided with a synchronous pulley, the outer part of the two side synchronous pulleys is connected with the two sides of a synchronous belt, the middle part of the rotating shaft is provided with a driven gear, the horizontal moving hanger is provided with a support frame, the side of the support frame is provided with a rack which is meshingly connected with the driven gear. The side of the support table is provided with a guide column which is perpendicularly arranged with the telescopic slide rod, the middle part of the guide column is slidingly connected with a guide seat, the end of the guide seat is rotationally connected with one end of a support rod, the other end of the support rod is rotationally connected with the side of the telescopic table, the middle part of the guide seat is provided with a tensioning assembly which is matched with the synchronous belt. The tensioning assembly comprises a fixed block which is fixedly connected with the guide seat, the middle part of the fixed block is slidingly connected with a tensioning slide rod, the end of the tensioning slide rod which is away from the support table is provided with a mounting frame, the middle part of the mounting frame is rotationally connected with a tensioning pulley which is matched with the synchronous belt, the mounting frame and the fixed block are provided with a tensioning spring which drives the tensioning slide rod to move towards the direction which is away from the support table.

[0009] As a preferred technical scheme of the present application, the base is of a rectangular structure, the four sides of the base are provided with support columns, the middle part of the support column is provided with an auxiliary support assembly which is matched with the guide seat. The auxiliary support assembly comprises a sliding block which is slidingly connected with the middle part of the support column, the side of the sliding block is rotationally connected with one end of a jacking rod, the other end of the jacking rod is rotationally connected with the guide seat.

[0010] The present application has the following advantages:

[0011] Through the synchronous rotation of the horizontal moving hangers on the left and right sides, the floor can be stably extended into the interior of the subway car, and the synchronous reverse front and back movement of the horizontal moving hangers makes the crane stably move the floor in the small space inside the car body, without manual carrying, thereby reducing the operation difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical schemes in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0013] Figure 1 It is a structural schematic view of a crane for installing floor of a subway train.

[0014] Figure 2 It is a front view of a crane for installing floor of a subway train.

[0015] Figure 3 It is a structural schematic view of a supporting mechanism in a crane for installing floor of a subway train.

[0016] Figure 4 Figure 4 is a right view of a support mechanism in a floor installation hoist for a subway train.

[0017] Figure 5 Figure 5 is a structural schematic diagram of a suspension mechanism in a floor installation hoist for a subway train.

[0018] Figure 6 Figure 6 is a structural schematic diagram of a horizontal moving hanger in a floor installation hoist for a subway train.

[0019] Figure 7 Figure 7 is a structural schematic diagram of an angle limiting assembly in a floor installation hoist for a subway train.

[0020] Figure 8 Figure 8 is a front view of Figure 7 .

[0021] Figure 9 Figure 9 is a structural schematic diagram of a telescopic platform below in a floor installation hoist for a subway train.

[0022] Figure 10 Figure 10 is a structural schematic diagram of a tensioning assembly in a floor installation hoist for a subway train.

[0023] Figure 1: 1, base; 2, support mechanism; 3, suspension mechanism; 4, support column; 5, support platform; 6, guide column; 7, guide seat; 8, support rod; 9, telescopic platform; 10, telescopic slide rod; 11, auxiliary support assembly; 12, jacking rod; 13, sliding block; 14, synchronous belt; 15, tensioning assembly; 16, horizontal moving hanger; 17, suspension rope; 18, fixed head; 19, counterweight; 20, rotating seat; 21, rotating shaft; 22, synchronous pulley; 23, driven gear; 24, support frame; 25, rack; 26, angle limiting assembly; 27, limiting strip; 28, limiting plate; 29, supporting plate; 30, installation frame; 31, tensioning pulley; 32, tensioning slide rod; 33, tensioning spring; 34, fixed block; 35, winding device. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In one embodiment, referring to Figures 1-10 , a floor installation hoist for a subway train includes a base 1, a support mechanism 2, and a suspension mechanism 3.

[0026] The support mechanism 2 includes a support column 4 fixedly connected to the base 1. The base 1 is placed on the ground and can be fixed to the ground by bolts. The support column 4 is vertically arranged on the upper surface of the base 1. The upper end of the support column 4 is fixedly connected to the horizontal support platform 5. The support platform 5 is a rectangular structure. Figure 2 The direction describes the orientation relationship of different components. The left and right sides of the support platform 5 are slidably connected with telescopic slide bars 10 arranged in left and right directions, and in order to prevent the telescopic slide bars 10 on the left and right sides from interfering with each other, the telescopic slide bar 10 on the left side can be slidably connected to the upper side of the left side surface of the support platform 5, and the telescopic slide bar 10 on the right side can be slidably connected to the lower side of the right side surface of the support platform 5. Therefore, after the telescopic slide bars 10 on both sides are retracted into the support platform 5, there will be no interference and they will remain stable. The telescopic slide bars 10 are slidably connected to the front and rear ends of the side surface of the support platform 5, and the end of the telescopic slide bar 10 away from the support platform 5 is fixedly connected to the telescopic platform 9. The two telescopic platforms 9 move synchronously towards or away from each other relative to the support platform 5, and the distance moved by the two telescopic platforms 9 is the same;

[0027] The suspension mechanism 3 includes a rotating seat 20 vertically arranged in the middle of the telescopic platform 9, the upper end of the rotating seat 20 is slidably connected to the transverse hanging bracket 16, and the upper end of the rotating seat 20 is connected to the transverse hanging bracket 16. Figure 2 In the state, the transverse hanger 16 is arranged in a front-to-back direction, and the transverse hanger 16 is a U-shaped structure, so the two long rods on the left and right sides of the transverse hanger 16 are slidably connected to the left and right sides of the upper end of the rotating seat 20, and the moving directions of the transverse hangers 16 on the left and right sides are opposite when working. For example, when the transverse hanger 16 on the left moves forward, the transverse hanger 16 on the right moves backward. A winding device 35 is provided at the end of one of the transverse hangers 16, and a suspension rope 17 is wound around the outside of the winding device 35. The free end of the suspension rope 17 is provided with a fixed head 18 for fixing the floor, and a counterweight block 19 is provided at the end of the other transverse hanger 16. The counterweight block 19 and the winding device 35 are symmetrically arranged relative to the central circumference of the support platform 5. According to the attached Figure 2 The position of the floor is shown in FIG1 , and a winding device 35 is provided at the rear end of the right transverse hanger 16. A suspension rope 17 is wound around the outside of the winding device 35. A fixed head 18 for fixing the floor is provided at the lower end of the suspension rope 17. The fixed head 18 can be a suction cup. The winding device 35 can reel in or release the suspension rope 17, thereby adjusting the height of the fixed head 18. That is, the floor is raised and lowered by the fixed head 18. A counterweight 19 is provided at the front end of the left transverse hanger 16. The counterweight 19 is provided to offset the tilt of the crane caused by the weight of the floor, so that the crane can remain stable when lifting the floor.

[0028] In one case of this embodiment, the rotating seat 20 is rotatably connected to the support platform 5. By setting the rotating seat 20 to be rotatable, when the crane is not working, the transverse hanger 16 can be rotated to a state flush with the telescopic slide rod 10, thereby reducing the space occupied by the entire crane, and when the floor moves toward the interior of the car body, the transverse hanger 16 can be rotated to a left or right state, thereby facilitating the extension of the floor into the interior of the car body, and in order to ensure stability during suspension, an angle limiting component 26 is provided at the lower end of the rotating seat 20. The angle limiting component 26 can limit the rotation of the rotating seat 20, that is, when the angle of the rotating seat 20 is adjusted, the angle can be locked to avoid the problem of shaking caused by angle changes during operation.

[0029] In one case of this embodiment, the angle limiting component 26 includes a limiting bar 27 provided on both sides of the telescopic platform 9. The limiting bars 27 are provided on the left and right sides of the telescopic platform 9, and the two limiting bars 27 are provided in a group in front and behind. The protruding ends of the two limiting bars 27 are close to each other, and the limiting bars 27 themselves can be angularly deflected by deformation. Figure 2 In this state, a supporting plate 29 is provided on the front side and the right side of the lower end of the rotating seat 20 on the right, and a supporting plate 29 is provided on the front side and the left side of the lower end of the rotating seat 20 on the left. Therefore, the two supporting plates 29 are in a 90° state, which is convenient for subsequent use. The upper surface of the supporting plate 29 is rotatably connected to the limiting plate 28. When the limiting plate 28 is rotated to a vertical state, the limiting plate 28 can be squeezed between the two limiting bars 27, so that the limiting plate 28 will not move, thereby realizing the angle limitation processing of the rotating seat 20.

[0030] In one case of this embodiment, the middle part of the rotating seat 20 is rotatably connected with a rotating shaft 21, and the rotating shaft 21 is vertically arranged. A synchronous pulley 22 is arranged at the upper end of the rotating shaft 21, and a synchronous belt 14 is sleeved on the outer side of the synchronous pulley 22. That is to say, the left and right sides of the synchronous belt 14 are connected to the synchronous pulleys 22 on the left and right sides, so that the rotating shafts 21 on the left and right sides can rotate synchronously. A driven gear 23 is arranged in the middle of the rotating shaft 21. At this time, a support is arranged above the transverse hanger 16. A support frame 24 is set on the right side of the upper surface of the right transverse hanger 16 in a front-to-rear direction, and a rack 25 meshing with the driven gear 23 is set on the left side above the right support frame 24. At the same time, a support frame 24 is set on the left side above the left transverse hanger 16, and a rack 25 is set on the right side of the left support frame 24. The synchronous reverse movement of the transverse hangers 16 on the left and right sides is achieved through the cooperation of the driven gear 23 and the rack 25 and the cooperation of the synchronous belt 14 and the synchronous pulley 22.

[0031] In one case of this embodiment, guide columns 6 are set in a front-to-back direction on both the front and rear sides of the support platform 5, and for stability, the guide columns 6 are set in groups of two on the left and right, and a horizontally set guide seat 7 is slidably connected to the middle of the guide column 6. The left and right ends of the guide seat 7 are rotatably connected to one end of the support rod 8, and the other end of the support rod 8 is rotatably connected to the side of the telescopic platform 9, so that a diamond structure is formed by the four support rods 8. The synchronous reverse movement of the telescopic platform 9 on the left and right sides is achieved through the cooperation of the support rods 8, and a tensioning assembly 15 is set in the middle of the upper surface of the guide seat 7. The tensioning assembly 15 ensures that the synchronous belt 14 remains in a tensioned state during operation.

[0032] In one case of this embodiment, the tensioning assembly 15 includes a fixed block 34 fixedly connected to the middle of the upper surface of the guide seat 7, the middle of the fixed block 34 is slidably connected to the tensioning slide bar 32, the end of the tensioning slide bar 32 away from the support platform 5 is provided with a mounting frame 30, the middle of the mounting frame 30 is rotatably connected to a tensioning pulley 31 that cooperates with the synchronous belt 14, and a tensioning spring 33 that drives the tensioning slide bar 32 to move in the direction away from the support platform 5 is provided between the mounting frame 30 and the fixed block 34, so that the tensioning pulley 31 can be The tensioning effect is achieved by tightening the synchronous belt 14, and a bushing with a certain friction force is provided between the telescopic slide rod 10 and the support platform 5. Therefore, when the telescopic platform 9 moves, it will not move independently under the action of the friction force. At this time, the tensioning spring 33 can only tighten the synchronous belt 14 and will not drive the telescopic platform 9 to move. In addition, the mounting frame 30 is a U-shaped structure. The synchronous belt 14 can be inserted into the interior of the mounting frame 30 and contact the synchronous pulley 22. The mounting frame 30 can prevent the synchronous belt 14 from disengaging from the synchronous pulley 22.

[0033] In one case of this embodiment, the base 1 is a rectangular structure, and support columns 4 are provided on all four sides of the base 1, that is, support columns 4 are provided in the middle of the four sides of the front, back, left and right of the upper surface of the base 1, and auxiliary support components 11 are provided in the middle of the front and back support columns 4. The auxiliary support components 11 can support the guide seat 7, reduce the force on the guide column 6, and prevent the guide column 6 from shaking left and right. The auxiliary support component 11 includes a slider 13 that is slidably connected to the middle of the support column 4. The side of the slider 13 is rotatably connected to the lower end of the top rod 12, and the upper end of the top rod 12 is rotatably connected to the lower surface of the guide seat 7. Therefore, when the guide seat 7 moves forward and backward, the slider 13 will also move up and down through the cooperation of the top rod 12, which plays a certain supporting and stabilizing effect.

[0034] During the implementation of this embodiment, the subway car body is first moved to the right side of the crane by driving, and according to the position of the floor to be installed, the windows or doors of the car body are aligned with the crane, and the floor is hoisted into the interior of the car body through the windows and doors of the car body.

[0035] Floor clamping process, by pulling the guide seat 7 forward and backward, the right telescopic platform 9 can move to the left, and the transverse suspension bracket 16 is rotated to the front and back direction, so that the fixed head 18 moves above the floor, the general winding device 35 releases the lifting rope, the fixed head 18 falls on the surface of the floor, the fixed head 18 can be a suction cup, the fixed head 18 is fixed with the upper surface of the floor, and the winding device 35 is reversed to start, so that the floor clamping process is completed.

[0036] Floor large range extension process, the limiting plate 28 is rotated to the horizontal state and is separated from the limiting strip 27, the transverse suspension bracket 16 is rotated to the left and right direction, the limiting plate 28 at the left end or the right end of the telescopic platform 9 is rotated to the vertical state and is inserted into the inside of the limiting strip 27, at this time, the angle of the rotating seat 20 is locked, and one end of the transverse suspension bracket 16 provided with the floor is located at the right end, at this time, the guide seat 7 is pushed to make the right telescopic platform 9 move to the right, the telescopic slide rod 10 and the transverse suspension bracket 16 can extend into the inside of the compartment through the window or the door of the compartment, the limiting plate 28 is rotated to the horizontal state, if the transverse suspension bracket 16 needs to be long enough to meet the subsequent front and back range movement of the floor, resulting in that the width of the inside of the compartment cannot meet the direct rotation of the transverse suspension bracket 16, the transverse suspension bracket 16 can start to rotate after extending into a part, so that the demand for the rotation space of the inside of the compartment is reduced, when the transverse suspension bracket 16 moves to the inside of the compartment and is rotated to the front and back direction, the left and right sides of the transverse suspension bracket 16 need to be rotated synchronously, and the limiting plate 28 is rotated to the vertical state and interferes with the limiting strip 27 again, so that the large range movement of the floor is completed.

[0037] Floor small range accurate movement, at this time, the operator can stand in the inside of the compartment, moves the transverse suspension bracket 16 forward and backward, and moves the floor forward and backward, in the movement process of the right transverse suspension bracket 16, the left transverse suspension bracket 16 also moves synchronously, so that the counterweight 19 can always offset the gravity of the floor, so that the crane can keep stable during work, when the floor moves to the position to be installed, the lifting rope can be released through the winding device 35, the floor falls on the bottom of the compartment, at this time, the fixed head 18 can be separated from the floor, and the subsequent fixing process of the floor can be carried out.

[0038] The present application is suitable for a crane for floor installation of a subway train, through synchronous rotation of the left and right transverse suspension brackets 16, the floor can stably extend into the inside of the subway compartment, and synchronous reverse front and back movement of the transverse suspension bracket 16 makes the crane can stably move the floor in the small space of the compartment, without manual carrying, and reduces the operation difficulty.

[0039] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. A crane for installing the floor of a subway train, characterized in that: It includes a base, a supporting mechanism and a suspension mechanism; The support mechanism includes a support column fixedly connected to the base, the end of the support column is fixedly connected to the support platform, both sides of the support platform are slidably connected to telescopic slide rods, the ends of the telescopic slide rods are fixedly connected to the telescopic platform, and the distance between the two telescopic platforms and the support platform is the same; The suspension mechanism includes a rotating seat arranged in the middle of the telescopic platform, the end of the rotating seat is slidably connected to a transverse hanger, and the two transverse hangers move synchronously in opposite directions. A winding device is provided at the end of one of the transverse hangers, and a suspension rope is wound around the outside of the winding device. The free end of the suspension rope is provided with a fixed head for fixing the floor, and a counterweight block is provided at the end of the other transverse hanger, and the counterweight block and the winding device are symmetrically arranged relative to the central circumference of the support platform.

2. The crane for installing the floor of a subway train according to claim 1, characterized in that: The rotating seat is rotatably connected to the support platform, and an angle limiting component for limiting the rotation of the rotating seat is provided at one end of the rotating seat close to the ground.

3. The crane for installing the floor of a subway train according to claim 2, characterized in that: The angle limiting assembly includes limit bars arranged on both sides of the telescopic platform, and two support plates are provided on the side of the rotating seat close to the ground, one support plate is arranged parallel to the transverse hanger, and the other support plate is arranged perpendicular to the transverse hanger. A limit plate cooperating with the limit bar is provided on the support plate. After the limit plate is rotated to contact the limit bar, the angle of the rotating seat relative to the support platform is limited.

4. The crane for installing the floor of a subway train according to claim 1, characterized in that: The middle part of the rotating seat is rotatably connected to a rotating shaft, the ends of the rotating shaft are provided with synchronous pulleys, the outsides of the synchronous pulleys on both sides are connected to the two sides of the synchronous belt, the middle part of the rotating shaft is provided with a driven gear, and the transverse hanger is provided with a support frame, and the side of the support frame is provided with a rack meshing with the driven gear.

5. The crane for installing the floor of a subway train according to claim 4, characterized in that: The side of the support platform is provided with a guide column arranged perpendicular to the telescopic slide rod, the middle part of the guide column is slidably connected to a guide seat, the end of the guide seat is rotatably connected to one end of the support rod, and the other end of the support rod is rotatably connected to the side of the telescopic platform, and the middle part of the guide seat is provided with a tensioning assembly that cooperates with the synchronous belt.

6. The crane for installing the floor of a subway train according to claim 5, characterized in that: The tensioning assembly includes a fixed block fixedly connected to the guide seat, a tensioning slide rod is slidably connected to the middle part of the fixed block, a mounting frame is provided at the end of the tensioning slide rod away from the support platform, and a tensioning pulley cooperating with the synchronous belt is rotatably connected to the middle part of the mounting frame, and a tensioning spring is provided between the mounting frame and the fixed block to drive the tensioning slide rod to move in the direction away from the support platform.

7. The crane for installing the floor of a subway train according to claim 1, characterized in that: The base is a rectangular structure, and support columns are provided on the four sides of the base. An auxiliary support component that cooperates with the guide seat is provided in the middle of the support column.

8. The crane for installing the floor of a subway train according to claim 7, characterized in that: The auxiliary support assembly includes a slider slidably connected to the middle of the support column, the side of the slider is rotationally connected to one end of the push rod, and the other end of the push rod is rotationally connected to the guide seat.

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