Assembly type subway station first ring splicing device and construction method

Abstract

The invention relates to the technical field of subway first ring construction, and discloses an assembly type subway station first ring assembling device and a construction method.The device comprises supports, the supports are symmetrically arranged, and limiting plates are fixedly installed on the supports. In the hoisting and mounting process of the bottom plate for assembling the first ring, the position of the deviated bottom plate can be adjusted by means of matching of the inclined surface and the vertical surface of the limiting plate, so that each bottom plate can be centered in a required mounting area, the operation difficulty of hoisting equipment workers is greatly reduced, and the working efficiency is improved. When the position of the limiting plate is adjusted to the next bottom plate mounting area, the bottom plate can be separated from the limiting plate, the limiting plate is prevented from being rubbed and protected, the limiting plate can be cleaned before the position of the bottom plate is adjusted, residues left on the surface of the limiting plate are washed, friction can be reduced when the bottom plate makes contact with the limiting plate subsequently, and the service life of the limiting plate is prolonged. And the limiting plate is protected.

Description

Technical Field

[0001] This invention belongs to the field of subway first ring construction technology, and specifically relates to a prefabricated subway station first ring assembly device and construction method. Background Technology

[0002] Open-cut prefabricated railway stations use precast concrete components (such as base slabs, side walls, and roof slabs) to be assembled into rings on site like "building blocks." This process can reduce on-site construction workers by 80%, save 4-6 months of construction time, and reduce carbon emissions by 20%.

[0003] During the assembly process, the base plate of the first ring needs to be lifted and placed. When placing the base plate in the required position, it is difficult to place it accurately due to the swaying of the base plate during lifting. The lifting operator needs to work with the staff to make constant adjustments to complete the installation, which makes the whole process quite cumbersome.

[0004] Therefore, it is necessary to invent a prefabricated subway station first ring assembly device and construction method to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a prefabricated subway station first ring assembly device and construction method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated subway station first ring assembly device, comprising: a bracket, the brackets being symmetrically arranged, a limiting plate being fixedly installed on the brackets, the surface of the limiting plate being provided with an inclined surface and a vertical surface, the inclined surface being located above the vertical surface and connected to the vertical surface, and a driving component for driving its horizontal movement being provided on the bracket; The drive assembly includes: a side frame, a vertical plate, a lead screw, a slider, and a motor; The side frames are symmetrically arranged, the vertical plates are symmetrically fixedly installed on the top of the side frames, the lead screw is rotatably installed between the two vertical plates, the slider is slidably installed on the side frames, one side of the slider is connected to the bracket, the slider is threaded onto the outside of the lead screw, the motor is fixedly installed on the outside of one side of the vertical plate, and the output shaft of the motor is fixedly connected to one end of the lead screw.

[0007] Furthermore, the slider has an internal cavity containing a cylinder, the cylinder rod of which is fixedly connected to the bracket, and the bottom of the bracket has rollers.

[0008] Furthermore, the side frame is provided with first protrusions at equal intervals on the side near the support, and the support is fixedly installed with second protrusions corresponding to the first protrusions on the side near the side frame. Both the first protrusions and the second protrusions are provided with arc surfaces.

[0009] Furthermore, the top of the bracket is provided with a pressure plate, the inside of the pressure plate is provided with a water injection chamber, the bottom of the pressure plate is provided with spray holes that communicate with the water injection chamber at equal intervals, and the bracket is provided with a water injection component for injecting water into the water injection chamber.

[0010] Furthermore, the water injection assembly includes: a shaft, a torsion spring, a cylinder, a telescopic tube, a suction tube, a one-way valve, and a piston assembly; The pressure plate is fixedly sleeved on the outside of the shaft, the shaft is rotatably mounted on the bracket, and both ends of the shaft extend to the outside of the bracket. The torsion springs are symmetrically sleeved on the outside of the shaft, and both ends of the torsion springs are fixedly connected to the bracket and the shaft, respectively. The bracket has a water storage chamber inside. The suction pipe is fixedly mounted on the bracket, and the bottom of the suction pipe extends into the inside of the water storage chamber. The cylinder is fixedly mounted on the top of the suction pipe, and the top of the suction pipe communicates with the cylinder. The telescopic pipe communicates the cylinder with the water injection chamber. The piston assembly can squeeze the water in the cylinder outward. The one-way valves are respectively located inside the suction pipe and the telescopic pipe.

[0011] Furthermore, the piston assembly includes: a piston plate, a pull rod, a second spring, and a pull rope; The plug plate is disposed inside the cylinder, the pull rod is fixedly installed on the side of the plug plate near the pressure plate, the second spring is sleeved on the outside of the pull rod, one end of the pull rod extends outside the cylinder, and the pull rope fixes the pull rod to the pressure plate.

[0012] Furthermore, the torsion force of the torsion spring is greater than the elastic force of the second spring.

[0013] The construction method for the prefabricated subway station first ring assembly device described above includes the following steps: S1. In use, the first ring base plate to be installed is lifted by a lifting device and then hoisted between a pair of limit plates. S2. If the lifting base plate is offset, as the base plate descends, one end of the base plate will contact the inclined surface of the limiting plate on one side. As the base plate descends, the inclined surface will press the base plate to adjust its position to be centered. S3. Finally, the base plate can be centered between a pair of vertical surfaces and placed in the required installation area. Then, the motor is started to rotate the lead screw, thereby driving the slider to move with the bracket and the limiting plate, so that the pair of limiting plates move synchronously, allowing it to move to the area where the next base plate needs to be installed. S4. Then, follow the same steps as above to install the next base plate. Finally, install multiple base plates in sequence, so that each base plate can be adjusted during installation.

[0014] The technical effects and advantages of this invention are as follows: 1. During the hoisting and installation of the base plate of the first ring assembly, the present invention can adjust the position of the offset base plate by relying on the cooperation of the inclined and vertical surfaces of the limiting plate, so that each base plate can be centered in the required installation area, which greatly reduces the operation difficulty of the crane operators. Moreover, when adjusting the position of the limiting plate to the next base plate installation area, the base plate can be separated from the limiting plate to avoid friction on the limiting plate and protect it. 2. The present invention can clean the limiting plate before adjusting the position of the base plate, thereby rinsing off the residue on the surface of the limiting plate, reducing friction when the base plate comes into contact with the limiting plate, and protecting the limiting plate. Attached Figure Description

[0015] Figure 1 A schematic diagram of the prefabricated subway station first ring assembly device according to an embodiment of the present invention is shown; Figure 2 A schematic diagram of the side frame structure according to an embodiment of the present invention is shown; Figure 3 A partially enlarged structural schematic diagram of the side frame according to an embodiment of the present invention is shown; Figure 4 An embodiment of the present invention is shown. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 A schematic diagram of the structure of the bracket according to an embodiment of the present invention is shown; Figure 6 A cross-sectional view of the support structure according to an embodiment of the present invention is shown; Figure 7 An embodiment of the present invention is shown. Figure 6 Enlarged structural diagram at point B; In the diagram: 1. Bracket; 2. Limiting plate; 3. Side frame; 4. Vertical plate; 5. Lead screw; 6. Slider; 7. Roller; 8. Cylinder; 9. Plunger; 10. Roller mounting seat; 11. First protrusion; 12. Second protrusion; 13. Pressure plate; 14. Spray hole; 15. Shaft; 16. Torsion spring; 17. Cylinder body; 18. Telescopic tube; 19. Pulling tube; 20. One-way valve; 21. Plug plate; 22. Pull rod; 23. Second spring; 24. Pull rope; 25. Motor. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0017] This invention provides a prefabricated subway station first ring assembly device, such as... Figures 1 to 7As shown, it includes: a bracket 1, the brackets 1 are symmetrically arranged, a limit plate 2 is fixedly installed on the brackets 1, the surface of the limit plate 2 is provided with an inclined surface and a vertical surface, the inclined surface is located above the vertical surface and the inclined surface is connected to the vertical surface, the limit plate 2 is a cast iron steel plate, and the bracket 1 is provided with a drive component for driving its horizontal movement. The drive assembly includes: side frame 3, vertical plate 4, lead screw 5, slider 6, and motor 25; The side frames 3 are symmetrically arranged and are fixedly installed in the area where the first ring of the subway is installed by bolts. The vertical plates 4 are symmetrically fixedly installed on the top of the side frames 3. The lead screw 5 is rotatably installed between the two vertical plates 4. The slider 6 is slidably installed on the side frames 3. One side of the slider 6 is connected to the bracket 1. The slider 6 is threaded on the outside of the lead screw 5. The motor 25 is fixedly installed on the outside of one side of the vertical plate 4. The output shaft of the motor 25 is fixedly connected to one end of the lead screw 5.

[0018] In use, the first ring base plate to be installed is lifted by the lifting equipment and hoisted between a pair of limiting plates 2. The width of the limiting plates 2 is smaller than the width of the base plate, and the distance between the vertical surfaces of the pair of limiting plates 2 is the same as the length of the base plate. If the lifted base plate is offset, as the base plate descends, one end of the base plate will abut against the inclined surface of one side of the limiting plate 2. As the base plate descends, the inclined surface squeezes the base plate to adjust its centering position. Finally, the base plate can be centered between the pair of vertical surfaces and placed in the required installation area. Then, the motor 25 is started to rotate the lead screw 5, thereby driving the slider 6 to move the bracket 1 and the limiting plates 2, so that the pair of limiting plates 2 move synchronously and can be moved to the area where the next base plate needs to be installed. Then, the same operation is performed to install the next base plate. Finally, multiple base plates are installed in sequence, so that each base plate can be adjusted during installation to ensure that each base plate is centered in the required installation area, which greatly reduces the operation difficulty for the lifting equipment operator.

[0019] like Figure 3 As shown, the slider 6 has a cavity inside, and a cylinder 8 is installed inside the cavity. The cylinder rod of the cylinder 8 is fixedly connected to the bracket 1. The bottom of the bracket 1 is provided with a roller 7. Specifically, the roller 7 is connected to the bracket 1 through a roller mounting seat 10.

[0020] When the base plate is positioned between the vertical surfaces of a pair of limiting plates 2, the limiting plates 2 rub against the base plate when the position of the limiting plates 2 is adjusted, causing wear on the limiting plates 2. Therefore, when the limiting plate 2 moves, the cylinder 8 is activated to shorten its cylinder rod, causing the drive bracket 1 to move closer to the side frame 3, thus causing the limiting plate 2 to leave the base plate. Subsequently, the limiting plate 2 moves horizontally. When the limiting plate 2 is about to reach the desired position, the cylinder rod of the cylinder 8 is extended, causing the drive bracket 1 to move the limiting plate 2 away from the side frame 3. Finally, the limiting plate 2 is reset, and the position of the base plate can be adjusted subsequently. During the entire position adjustment process of the limiting plate 2, the limiting plate 2 can be separated from the base plate, avoiding wear and tear on the limiting plate 2 during movement.

[0021] like Figure 3 As shown, the side frame 3 is provided with first protrusions 11 at equal intervals on the side near the bracket 1, and the bracket 1 is fixedly installed with second protrusions 12 corresponding to the first protrusions 11 on the side near the side frame 3. Both the first protrusions 11 and the second protrusions 12 are provided with arc surfaces.

[0022] When the first protrusion 11 and the second protrusion 12 collide, the bracket 1 cannot move. The first protrusion 11 and the second protrusion 12 can provide support for the bracket 1. When it is necessary to adjust the position of the limiting plate 2, the slider 6 is driven to move, which causes the cylinder 8, the bracket 1 and the limiting plate 2 to move, and the second protrusion 12 moves accordingly. The second protrusion 12 leaves the first protrusion 11, and the support for the bracket 1 is canceled. When the second protrusion 12 moves, the cylinder rod of the cylinder 8 continuously shortens.

[0023] like Figures 1 to 7 As shown, the top of the bracket 1 is provided with a pressure plate 13, the inside of the pressure plate 13 is provided with a water injection chamber, the bottom of the pressure plate 13 is provided with spray holes 14 that communicate with the water injection chamber at equal intervals, and the bracket 1 is provided with a water injection component for injecting water into the water injection chamber.

[0024] Because some of the bottom plates have slag at their ends, when the end of the bottom plate comes into contact with the limiting plate 2, the slag on its surface will remain on the surface of the limiting plate 2. When the next bottom plate moves along the limiting plate 2, the residual slag increases the friction, which accelerates the wear of the limiting plate 2. Therefore, when the base plate descends, it comes into contact with the pressure plate 13, and water is injected into the water injection chamber in conjunction with the water injection component. The water is sprayed out through the spray hole 14 onto the surface of the limiting plate 2, which washes away the residue remaining on the surface of the limiting plate 2, thereby reducing friction when the base plate comes into contact with the limiting plate 2 in the future and protecting the limiting plate 2.

[0025] like Figures 5 to 7 As shown, the water injection assembly includes: shaft 15, torsion spring 16, cylinder 17, telescopic pipe 18, suction pipe 19, one-way valve 20, and piston assembly; The pressure plate 13 is fixedly sleeved on the outside of the shaft 15, which is rotatably mounted on the bracket 1. Both ends of the shaft 15 extend to the outside of the bracket 1. Torsion springs 16 are symmetrically sleeved on the outside of the shaft 15, with both ends of the torsion springs 16 fixedly connected to the bracket 1 and the shaft 15, respectively. The bracket 1 has a water storage chamber inside. The suction pipe 19 is fixedly mounted on the bracket 1, with its bottom extending into the water storage chamber. The cylinder body 17 is fixedly mounted on the top of the suction pipe 19, with the top of the suction pipe 19 communicating with the cylinder body 17. The telescopic pipe 18 connects the cylinder body 17 to the water injection chamber. The piston... The assembly can squeeze the water out of the cylinder 17. The one-way valves 20 are respectively installed inside the suction pipe 19 and the telescopic pipe 18. The piston assembly includes: a plug plate 21, a pull rod 22, a second spring 23, and a pull rope 24. The plug plate 21 is installed inside the cylinder 17. The pull rod 22 is fixedly installed on the side of the plug plate 21 near the pressure plate 13. The second spring 23 is sleeved on the outside of the pull rod 22. One end of the pull rod 22 extends to the outside of the cylinder 17. The pull rope 24 fixes the pull rod 22 to the pressure plate 13. The bracket 1 is provided with a water inlet that communicates with the water storage chamber. A plunger 9 is provided on the water inlet.

[0026] One side of the pressure plate 13 extends beyond the vertical surface of the limiting plate 2. When the base plate descends, the base plate abuts against the pressure plate 13, squeezing it and causing it to rotate downwards. This causes the torsion spring 16, which is driven by the shaft 15, to twist and deform. As the pressure plate 13 rotates, the pull rope 24 loosens, and the compressed second spring 23 pushes the plug plate 21 to move, thus squeezing the water out of the cylinder 17. At this time, the one-way valve 20 in the suction pipe 19 closes, and the one-way valve 20 in the telescopic pipe 18 opens, allowing water to enter the water injection chamber through the telescopic pipe 18. Then, the water is sprayed through the nozzle 14 onto the surface of the limiting plate 2. When the bottom plate leaves the pressure plate 13, the torsion spring 16, along with the shaft 15 and the pressure plate 13, returns to its original position. The pressure plate 13, in conjunction with the pull rope 24, pulls the pull rod 22 and the plug plate 21 to return to its original position. At the same time, the plug plate 21 compresses the second spring 23 to deform it. As the plug plate 21 moves, water is drawn into the cylinder 17. At this time, the one-way valve 20 located in the suction pipe 19 opens, and the one-way valve 20 located in the telescopic pipe 18 closes. The water in the water storage chamber is drawn into the cylinder 17 through the suction pipe 19.

[0027] The torsion force of the torsion spring 16 is greater than the elastic force of the second spring 23.

[0028] This allows the torsion spring 16 to drive the shaft 15 and pressure plate 13 to rotate, which in turn, along with the pull rope 24, pulls the pull rod 22 and the stopper plate 21 to move, thereby compressing the second spring 23 and causing it to deform.

[0029] Working Principle: During use, the first ring base plate to be installed is lifted by a lifting device and placed between a pair of limiting plates 2. The width of the limiting plates 2 is less than the width of the base plate, and the distance between the vertical surfaces of the pair of limiting plates 2 is the same as the length of the base plate. If the lifted base plate is offset, as the base plate descends, one end of the base plate will contact the inclined surface of one side of the limiting plate 2. As the base plate descends, the inclined surface presses against the base plate, adjusting its centering position. Finally, the base plate is centered between the pair of vertical surfaces and placed in the required installation area. Then, a pair of motors 25 are started, causing a pair of lead screws 5 to rotate, thereby driving the slider 6 to move the cylinder 8, bracket 1, and limiting plates 2. This causes the second protrusion 12 to move accordingly, separating from the first protrusion 11. At this point, the support for the bracket 1 is removed. During this process, the cylinder rod of the cylinder 8 continuously shortens, causing the drive... The moving bracket 1 moves towards the side frame 3, causing the limiting plate 2 to leave the base plate. Then, the second protrusion 12 moves horizontally along the side frame 3. When the second protrusion 12 contacts the first protrusion 11 again, the cylinder rod of the cylinder 8 extends, causing the second protrusion 12 to move along the surface of the first protrusion 11 towards its crest, thereby moving the bracket 1 away from the side frame 3. Finally, the limiting plate 2 is reset in the area where the next base plate needs to be installed, and the position of the base plate can be adjusted. During the entire adjustment process of the position of the limiting plate 2, the limiting plate 2 can be separated from the base plate to avoid wear when the limiting plate 2 moves. Then, the same operation is performed to install the next base plate. Finally, multiple base plates are installed in sequence, so that each base plate can be adjusted during installation, so that each base plate can be centered in the required installation area, which greatly reduces the operation difficulty for the crane operator. When the base plate descends, it contacts the pressure plate 13, squeezing the pressure plate 13 and causing it to rotate downwards. This causes the torsion spring 16, which carries the shaft 15, to twist and deform. As the pressure plate 13 rotates, the pull rope 24 loosens, and the compressed second spring 23 pushes the plug plate 21 to move, squeezing the water out of the cylinder 17. At this time, the one-way valve 20 in the suction pipe 19 closes, and the one-way valve 20 in the telescopic pipe 18 opens. Water enters the water injection chamber through the telescopic pipe 18 and is then sprayed out through the spray hole 14 onto the surface of the limit plate 2. When the base plate leaves the pressure plate 13, the torsion spring 16, carrying the shaft 15, causes the torsion spring 16 to twist and deform. 5. The pressure plate 13 is reset. The pressure plate 13, together with the pull rope 24, pulls the pull rod 22 and the plug plate 21 to reset them. At the same time, the plug plate 21 compresses the second spring 23 to deform it. As the plug plate 21 moves, water is drawn into the cylinder 17. At this time, the one-way valve 20 in the suction pipe 19 is opened and the one-way valve 20 in the telescopic pipe 18 is closed. The water in the water storage chamber is drawn into the cylinder 17 through the suction pipe 19. By spraying water on the limiting plate 2, the residue remaining on the surface of the limiting plate 2 is washed away, so that the friction can be reduced when the bottom plate contacts the limiting plate 2, thus protecting the limiting plate 2.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A prefabricated subway station first ring assembly device, characterized in that, include: The bracket (1) is symmetrically arranged and is provided with a drive component for driving its horizontal movement. The drive assembly includes: a side frame (3), a vertical plate (4), a lead screw (5), a slider (6), and a motor (25); The side frame (3) is symmetrically arranged, the vertical plate (4) is symmetrically fixedly installed on the top of the side frame (3), the lead screw (5) is rotatably installed between the two vertical plates (4), the slider (6) is slidably installed on the side frame (3), one side of the slider (6) is connected to the bracket (1), the slider (6) is threaded on the outside of the lead screw (5), the motor (25) is fixedly installed on the outside of the vertical plate (4) on one side, and the output shaft of the motor (25) is fixedly connected to one end of the lead screw (5).

2. The prefabricated subway station first ring assembly device according to claim 1, characterized in that: A limiting plate (2) is fixedly installed on the bracket (1). The surface of the limiting plate (2) is provided with an inclined surface and a vertical surface. The inclined surface is located above the vertical surface and is connected to the vertical surface.

3. The prefabricated subway station first ring assembly device according to claim 2, characterized in that: The slider (6) has a cavity inside, and a cylinder (8) is provided inside the cavity. The cylinder rod of the cylinder (8) is fixedly connected to the bracket (1). The bottom of the bracket (1) is provided with a roller (7).

4. The prefabricated subway station first ring assembly device according to claim 3, characterized in that: The side frame (3) is provided with a first protrusion (11) at equal intervals on the side near the support (1), and the support (1) is fixedly installed with a second protrusion (12) corresponding to the first protrusion (11) on the side near the side frame (3). Both the first protrusion (11) and the second protrusion (12) are provided with arc surfaces.

5. The prefabricated subway station first ring assembly device according to claim 4, characterized in that: The top of the bracket (1) is provided with a pressure plate (13), the inside of the pressure plate (13) is provided with a water injection cavity, the bottom of the pressure plate (13) is provided with spray holes (14) that communicate with the water injection cavity at equal intervals, and the bracket (1) is provided with a water injection component for injecting water into the water injection cavity.

6. The prefabricated subway station first ring assembly device according to claim 5, characterized in that: The water injection assembly includes: a shaft (15), a torsion spring (16), a cylinder (17), a telescopic pipe (18), a suction pipe (19), a one-way valve (20), and a piston assembly; The pressure plate (13) is fixedly sleeved on the outside of the shaft (15). The shaft (15) is rotatably mounted on the bracket (1). Both ends of the shaft (15) extend to the outside of the bracket (1). The torsion spring (16) is symmetrically sleeved on the outside of the shaft (15). Both ends of the torsion spring (16) are fixedly connected to the bracket (1) and the shaft (15) respectively.

7. The prefabricated subway station first ring assembly device according to claim 6, characterized in that: The bracket (1) has a water storage chamber inside. The suction pipe (19) is fixedly installed on the bracket (1). The bottom of the suction pipe (19) extends into the water storage chamber. The cylinder (17) is fixedly installed on the top of the suction pipe (19). The top of the suction pipe (19) is connected to the cylinder (17). The telescopic pipe (18) connects the cylinder (17) to the water injection chamber. The piston assembly can squeeze the water in the cylinder (17) outward. The one-way valve (20) is respectively installed inside the suction pipe (19) and the telescopic pipe (18).

8. The prefabricated subway station first ring assembly device according to claim 7, characterized in that: The piston assembly includes: a piston plate (21), a pull rod (22), a second spring (23), and a pull rope (24); The plug plate (21) is installed inside the cylinder body (17), the pull rod (22) is fixedly installed on the side of the plug plate (21) near the pressure plate (13), the second spring (23) is sleeved on the outside of the pull rod (22), one end of the pull rod (22) extends to the outside of the cylinder body (17), and the pull rope (24) fixes the pull rod (22) to the pressure plate (13).

9. The prefabricated subway station first ring assembly device according to claim 8, characterized in that: The torsion force of the torsion spring (16) is greater than the elastic force of the second spring (23).

10. A construction method for a prefabricated subway station first ring assembly device as described in claim 9, characterized in that, Includes the following steps: S1. When in use, the first ring base plate to be installed is lifted by a lifting device and then hoisted between a pair of limit plates (2); S2. If the lifting base plate is offset, as the base plate descends, one end of the base plate will contact the inclined surface of the limiting plate (2) on one side. As the base plate descends, the inclined surface will press the base plate to adjust its position to be centered. S3. Finally, the base plate can be centered between a pair of vertical surfaces, and the base plate can be centered in the required installation area. Then, the motor (25) is started to make it rotate with the lead screw (5), thereby driving the slider (6) to move with the bracket (1) and the limiting plate (2), so that the pair of limiting plates (2) move synchronously, so that it can move to the area where the next base plate needs to be installed. S3. Then, follow the same steps as above to install the next base plate. Finally, install multiple base plates in sequence, so that each base plate can be adjusted during installation.

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