A steam curing device for high-speed railway prestressed concrete beam

Abstract

The utility model relates to concrete beam steam curing device technical field, concretely is a kind of high-speed railway prestressed concrete beam steam curing device, including curing activity workshop, the curing activity workshop one side swing connection has workshop door, the workshop door one side swing connection has several roller drums, the curing activity workshop inside is equipped with conveying mechanism and traction mechanism, then through conveying mechanism and transmit prestressed concrete beam to curing activity workshop inside;Through traction mechanism and prestressed concrete beam are connected, and prestressed concrete beam is drawn to several roller drums upside, then through conveying mechanism and transmit prestressed concrete beam to curing activity workshop inside, after closing workshop door, steam can be generated by steam generation mechanism, the prestressed concrete beam in curing activity workshop is maintained, after maintenance is completed, open workshop door, through conveying mechanism, prestressed concrete beam can be sent out curing activity workshop.

Description

Technical Field

[0001] This utility model relates to the technical field of steam curing devices for concrete beams, specifically a steam curing device for prestressed concrete beams for high-speed railways. Background Technology

[0002] For example, Chinese patent CN218138808U discloses a steam curing device for concrete pipe piles, including a steam box. The steam box has a hollow plate at the bottom, a guide groove at the bottom of the hollow plate, an inclined surface inside the guide groove, and a U-shaped pipe at the lowest point of the guide groove. The bottom of the steam box has a wastewater tank, the top of the wastewater tank has a top plate, one end of the top plate has a through hole, one end of the U-shaped pipe extends into the through hole, and a water pump is installed at one end inside the wastewater tank.

[0003] However, the above solutions have the following shortcomings: The technical solutions are designed for small concrete pipe piles, which are small enough to be placed in a steam chamber for steam curing. However, for large concrete components, curing and transportation are cumbersome, requiring large workshops for curing. For concrete beams used in high-speed railways, which are typically 32m long, over 3m high, and 10m wide, curing requires placing the beams in a workshop, closing the doors, and allowing steam to cure the beams in a sealed environment. However, for prestressed concrete beams used in high-speed railways, steam curing usually requires hoisting equipment or other conveying equipment to place the beams into a large workshop. This transportation method is cumbersome, and there is a lack of a mobile workshop structure specifically designed for steam curing large-sized high-speed railway concrete beams. Therefore, we have introduced a steam curing device for high-speed railway prestressed concrete beams. Utility Model Content

[0004] The purpose of this invention is to provide a steam curing device for prestressed concrete beams of high-speed railways to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A steam curing device for prestressed concrete beams in high-speed railways includes a mobile curing workshop. A workshop door is movably connected to one side of the workshop, and several rollers are movably connected to the side of the workshop door. A conveying mechanism and a traction mechanism are provided inside the workshop. The traction mechanism connects to the prestressed concrete beam and pulls the beam onto the rollers. The conveying mechanism then transports the beam into the workshop. Two placement slots are provided inside the workshop. A steam generating mechanism is located on the top of the workshop to generate steam for curing the prestressed concrete beam.

[0006] Preferably, the conveying mechanism includes a plurality of conveying rollers, which are movably connected to the inside of the curing workshop. One end of each conveying roller extends into the outer environment and is fixedly connected to a pulley. The plurality of pulleys are interconnected by a belt. A first motor is fixedly installed on one side of the curing workshop, and the output end of the first motor is fixedly connected to a pulley.

[0007] Preferably, the traction mechanism includes two traction ropes. One end of each traction rope passes through the maintenance workshop and is fixedly connected to a take-up roller. The take-up roller is movably connected to one side of the maintenance workshop. The other end of each traction rope is fixedly connected to a first limiting plate. A second limiting plate is movably sleeved on the outside of each traction rope. A limiting screw is screwed into the inside of the second limiting plate. A second motor is fixedly connected to the outside of the maintenance workshop, and the output end of the second motor is fixedly connected to the take-up roller.

[0008] Preferably, the steam generating mechanism includes a water storage component, which is fixedly connected to the upper end of the curing workshop. A heating ring is fixedly connected to the inner side of the water storage component, and a guide pipe is fixedly connected to the upper end of the water storage component. The end of the guide pipe away from the water storage component extends into the inner side of the curing workshop and is fixedly connected to a spray pipe. The spray pipe is fixedly connected to the inner side of the curing workshop, and a valve is fixedly connected to the upper end of the water storage component.

[0009] Preferably, a drive motor is fixedly connected to the outside of the maintenance workshop, the output end of the drive motor is fixedly connected to the workshop door, an insertion hole is opened on one side of the workshop door, and a telescopic cylinder is fixedly connected to the outside of the maintenance workshop, the output end of the telescopic cylinder is inserted into the insertion hole.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: the prestressed concrete beam is connected to the traction mechanism and pulled into the upper side of several rollers. Then, the prestressed concrete beam is conveyed to the curing workshop through the conveying mechanism. After the workshop door is closed, steam is generated by the steam generating mechanism to cure the prestressed concrete beam in the curing workshop. After curing is completed, the workshop door is opened and the prestressed concrete beam can be sent out of the curing workshop through the conveying mechanism. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the maintenance workshop of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the back of this utility model; Figure 3 This is a three-dimensional structural diagram of the factory door in the open state of this utility model; Figure 4 This is a three-dimensional sectional view of the present invention. Figure 5 This is a three-dimensional structural diagram showing the connection relationship between the first limiting plate, the second limiting plate, and the traction rope of this utility model.

[0012] In the diagram: 1. Maintenance workshop; 2. Pulley; 3. Belt; 4. Workshop door; 5. Guide pipe; 6. Valve; 7. Water storage assembly; 8. Second motor; 9. Take-up roller; 10. First motor; 11. Drive motor; 12. Telescopic cylinder; 13. Roller; 14. First limit plate; 15. Second limit plate; 16. Traction rope; 17. Conveyor roller; 18. Placement trough; 19. Limiting screw; 20. Spray pipe; 21. Heating ring; 22. Insertion hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1-5 This utility model provides a technical solution: Example 1: A steam curing device for prestressed concrete beams in high-speed railways includes a mobile curing workshop 1. A workshop door 4 is movably connected to one side of the workshop 1, with the upper end of the workshop door 4 inclined. Several rollers 13 are movably connected to one side of the workshop door 4. A conveying mechanism and a traction mechanism are provided inside the workshop 1. The traction mechanism is connected to the prestressed concrete beam and pulls the prestressed concrete beam onto the upper side of the rollers 13. Then, the conveying mechanism conveys the prestressed concrete beam into the workshop 1. Two placement slots 18 are opened inside the workshop 1 for placing a first limiting plate 14 and a second limiting plate 15. A steam generating mechanism is provided at the top of the workshop 1 to generate steam for curing the prestressed concrete beam.

[0015] The conveying mechanism includes several conveying rollers 17, which are movably connected to the inside of the curing workshop 1. The conveying rollers 17 are positioned at a certain distance from the bottom of the inside of the curing workshop 1. One end of the conveying roller 17 extends into the outer environment and is fixedly connected to a pulley 2. The pulleys 2 are interconnected by a belt 3. A first motor 10 is fixedly installed on one side of the curing workshop 1. The output end of the first motor 10 is fixedly connected to a pulley 2. The first motor 10 drives the pulley 2 connected to it to rotate. Under the connection of the belt 3, the pulleys 2 rotate synchronously, and the prestressed concrete beam is conveyed to the designated position through the several synchronously rotating conveying rollers 17.

[0016] The traction mechanism includes two traction ropes 16. When using the traction ropes 16, metal cables should be selected. One end of the traction rope 16 passes through the maintenance workshop 1 and is fixedly connected to the take-up roller 9. The take-up roller 9 is movably connected to one side of the maintenance workshop 1. The other end of the traction rope 16 is fixedly connected to the first limiting plate 14. A second limiting plate 15 is movably sleeved on the outside of the traction rope 16. A limiting screw 19 is screwed into the inside of the second limiting plate 15. A second motor 8 is fixedly connected to the outside of the maintenance workshop 1. The output end of the second motor 8 is fixedly connected to the take-up roller 9. The steam generating mechanism includes a water storage component 7, which is fixedly installed on the top of the curing workshop 1. A heating ring 21 is fixedly connected to the inside of the water storage component 7. A guide pipe 5 is fixedly connected to the upper end of the water storage component 7. The end of the guide pipe 5 away from the water storage component 7 extends into the inside of the curing workshop 1 and is fixedly connected to a spray pipe 20. The spray pipe 20 is fixedly connected to the inside of the curing workshop 1. A valve 6 is fixedly connected to the upper end of the water storage component 7, and water is added to the water storage component 7 through the valve 6.

[0017] A drive motor 11 is fixedly connected to the outside of the maintenance workshop 1. The output end of the drive motor 11 is fixedly connected to the workshop door 4. A socket 22 is opened on one side of the workshop door 4. A telescopic cylinder 12 is fixedly connected to the outside of the maintenance workshop 1. The output end of the telescopic cylinder 12 is inserted into the socket 22. By opening the drive motor 11, the workshop door 4 is driven to close. By inserting the output end of the telescopic cylinder 12 into the socket 22, the workshop door 4 can be limited.

[0018] For the curing workshop 1 and its related equipment in this application, during use, the concrete steam curing process should be controlled externally to comply with relevant standards. This typically involves four stages: static shutdown, heating up, constant temperature, and cooling down. Specific standards are as follows: During the static curing phase: the ambient temperature should be kept no lower than 5℃, and the temperature can only be raised 4 to 6 hours after the concrete pouring is completed and after final setting. Heating stage: The heating rate should not exceed 10℃ / h to avoid the concrete from experiencing thermal stress due to excessively rapid heating. Force can cause problems such as surface cracking. Constant temperature stage: The internal temperature of the concrete should not exceed 60℃, and the maximum should not exceed 65℃. The constant temperature curing time should be determined through testing based on the demolding strength requirements of the component, the concrete mix proportions, and environmental conditions.

[0019] Cooling stage: The cooling rate should not exceed 10℃ / h. When the temperature difference between the concrete and the ambient temperature does not exceed 15℃, the curing cover and other curing facilities can be removed.

[0020] Working principle: During use, the second motor 8 drives the take-up roller 9 to rotate, so that the take-up roller 9 cancels the winding of the traction rope 16, and moves the cast prestressed concrete beam for high speed to the position of the factory door 4. The traction rope 16 is passed through the lower end of the prestressed concrete beam. By adjusting the position of the second limiting plate 15, the prestressed concrete beam is clamped between the first limiting plate 14 and the second limiting plate 15. After clamping, the limiting screw 19 is tightened so that the second limiting plate 15 cannot move along the traction rope 16. The second motor 8 is turned on to drive the winding roller 9 to rotate and wind up the two traction ropes 16. At this time, under the limiting action of the first limiting plate 14 and the second limiting plate 15, the prestressed concrete beam is pulled into the curing workshop 1 through several rollers 13. At this time, the first motor 10 drives the pulley 2 connected to it to rotate. Under the connection of the belt 3, several pulleys 2 rotate synchronously. The prestressed concrete beam is transported to the designated position through several synchronously rotating conveyor rollers 17. After several prestressed concrete beams are sent into the curing workshop 1 in sequence, the workshop door 4 is closed by turning on the transmission motor 11. The output end of the telescopic cylinder 12 is inserted into the insertion hole 22. The heating ring 21 is turned on to heat the water in the water storage component 7. The generated steam enters the spray pipe 20 through the guide pipe 5. The steam is then transported to the curing workshop 1 through several holes at the lower end of the spray pipe 20 to achieve steam curing of the prestressed concrete beam. When the curing is completed, the workshop door 4 is opened, and the prestressed concrete beam is moved out of the curing workshop 1 by the rotation of several conveyor rollers 17.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam curing device for prestressed concrete beams of high-speed railway, comprising a curing workshop, characterized in that: The curing workshop is movably connected to a door on one side, and several rollers are movably connected to the door on the other side. A conveying mechanism and a traction mechanism are located inside the curing workshop. The traction mechanism connects to the prestressed concrete beam and pulls the beam onto the rollers. The conveying mechanism then transports the beam into the curing workshop. Two placement slots are located inside the curing workshop. A steam generating mechanism is located on the top of the workshop to generate steam for curing the prestressed concrete beam.

2. The steam curing device for prestressed concrete beams of high-speed railway according to claim 1, characterized in that: The conveying mechanism includes several conveying rollers, which are movably connected to the inside of the curing workshop. One end of each conveying roller extends into the outer environment and is fixedly connected to a pulley. Several pulleys are interconnected by a belt. A first motor is fixedly installed on one side of the curing workshop, and the output end of the first motor is fixedly connected to a pulley.

3. The steam curing device for prestressed concrete beams of high-speed railway according to claim 1, characterized in that: The traction mechanism includes two traction ropes. One end of each traction rope passes through the maintenance workshop and is fixedly connected to a take-up roller. The take-up roller is movably connected to one side of the maintenance workshop. The other end of each traction rope is fixedly connected to a first limiting plate. A second limiting plate is movably sleeved on the outside of each traction rope. A limiting screw is screwed into the inside of the second limiting plate. A second motor is fixedly connected to the outside of the maintenance workshop, and the output end of the second motor is fixedly connected to the take-up roller.

4. The steam curing device for prestressed concrete beams of high-speed railway according to claim 1, characterized in that: The steam generating mechanism includes a water storage component, which is fixedly connected to the upper part of the curing workshop. A heating ring is fixedly connected to the inner side of the water storage component. A guide pipe is fixedly connected to the upper end of the water storage component. The end of the guide pipe away from the water storage component extends into the inner side of the curing workshop and is fixedly connected to a spray pipe. The spray pipe is fixedly connected to the inner side of the curing workshop. A valve is fixedly connected to the upper end of the water storage component.

5. A steam curing device for prestressed concrete beams of high-speed railways according to claim 1, characterized in that: A drive motor is fixedly connected to the outside of the maintenance workshop. The output end of the drive motor is fixedly connected to the workshop door. An insertion hole is opened on one side of the workshop door. A telescopic cylinder is fixedly connected to the outside of the maintenance workshop. The output end of the telescopic cylinder is inserted into the insertion hole.

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