A storage and transportation system and method for longitudinally distributed steel bars of railway prefabricated box girders

Abstract

This invention discloses a system for storing and transporting longitudinally distributed reinforcing bars in precast box girders for railways. The system includes a storage platform, a hoisting assembly, and multiple gripping assemblies. The storage platform stores the longitudinally distributed reinforcing bars. The hoisting assembly includes a main beam extending longitudinally and multiple support plates disposed on the underside of the main beam. The support plates overlap the upper side of the storage platform, and the main beam is located above the storage platform. The support plates provide support for the main beam. The gripping assemblies are used to grip the longitudinally distributed reinforcing bars. Each gripping assembly includes a gripping mechanism disposed on the main beam, a telescopic member, and a driving device for extending and retracting the telescopic member. The telescopic member is connected to the gripping mechanism. This invention's storage and transport system achieves integrated construction of longitudinally distributed reinforcing bar storage and transport, improving construction stability, increasing construction efficiency, and reducing the labor intensity of construction workers. Another objective of this invention is to provide a storage and transport method that is simple in steps and improves construction efficiency.

Description

Technical Field

[0001] This invention relates to the field of railway box girder prefabrication construction technology, and in particular to a longitudinally distributed steel reinforcement storage and transportation system and method for railway prefabricated box girders. Background Technology

[0002] The construction of high-speed railways mainly adopts the structural forms of prestressed concrete simply supported box girder bridges and continuous box girder bridges. With the rapid expansion of the national railway network and the improvement of technical equipment, the prefabrication technology of simply supported box girders with standard spans for railways has gradually matured, providing solid technical support for the construction of high-speed railways.

[0003] In the steel reinforcement installation process of prefabricated railway box girders, the longitudinal continuous distributed steel bars are characterized by their long length, large quantity, and significant deflection during material handling, making their operation particularly difficult. Conventional construction methods involve manually carrying the longitudinal continuous distributed steel bars on handcarts or using simple lifting equipment to place them into the steel bar binding jig, then using a gantry crane to lift them to the designated location, followed by manual unloading. This process requires approximately 4-6 construction workers, moving about 10 longitudinal continuous distributed steel bars to the binding jig each time. The lifting equipment suffers from large deflection and poor stability, resulting in low construction efficiency and high labor intensity. Therefore, a new technical solution is urgently needed to address at least one of these technical problems. Summary of the Invention

[0004] In view of the above shortcomings, one objective of this invention is to provide a longitudinally distributed steel reinforcement storage and transportation system for precast box girders in railways, which realizes integrated construction of longitudinally distributed steel reinforcement storage and transportation, improves construction stability, increases construction efficiency, and reduces the labor intensity of construction workers. Another objective of this invention is to provide a storage and transportation method with simple steps and improved construction efficiency.

[0005] To achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by the present invention is as follows:

[0006] A longitudinally distributed steel reinforcement storage and transportation system for precast railway box girders, characterized in that it includes:

[0007] Storage platform, used to store longitudinally distributed reinforcing bars;

[0008] The hoisting assembly includes a longitudinally extending main beam and a plurality of support plates disposed on the underside of the main beam, the support plates overlapping the upper side of the storage platform, and the main beam being located above the storage platform;

[0009] Multiple gripping components are disposed on the main beam for gripping the longitudinally distributed reinforcing bars. Each gripping component includes a gripping mechanism disposed on the main beam, a telescopic member, and a driving device for driving the telescopic member to extend or retract. The telescopic member is connected to the gripping mechanism.

[0010] As a preferred technical solution, the gripping mechanism includes gripping fixed seats, gripping claws, and a fixed base detachably disposed on the upper side of the main beam, respectively disposed on both sides of the main beam. The gripping claws are rotatably connected to the gripping fixed seats, and the two ends of the telescopic member are respectively connected to the gripping claws. The telescopic member is fixedly disposed on the fixed base.

[0011] As a preferred technical solution, at least one suspension point support is provided on the upper side of the main beam.

[0012] As a preferred technical solution, a first inclined connecting plate and a second inclined connecting plate are respectively provided on both sides of the suspension point bracket, and a first inclined fixing seat and a second inclined fixing seat are respectively provided on the outer periphery of both sides of the suspension point bracket. A first inclined cable is connected between the first inclined connecting plate and the first inclined fixing seat, and a second inclined cable is connected between the second inclined connecting plate and the second inclined fixing seat. The first inclined fixing seat and the second inclined fixing seat are symmetrically fixed on the upper side of the main beam.

[0013] As a preferred technical solution, a third inclined cable fixing seat and a fourth inclined cable fixing seat are symmetrically fixed on the upper side of the main beam. The third inclined cable fixing seat is located between the first inclined cable fixing seat and the suspension point bracket, and the fourth inclined cable fixing seat is located between the second inclined cable fixing seat and the suspension point bracket. A third inclined cable is connected between the third inclined cable fixing seat and the first inclined cable connecting plate, and a fourth inclined cable is connected between the fourth inclined cable fixing seat and the second inclined cable connecting plate.

[0014] As a preferred technical solution, the two output ends of the telescopic component are respectively provided with connecting sleeves, and a connecting rod is fixedly provided at the end of the connecting sleeve opposite to the telescopic component.

[0015] As a preferred technical solution, the gripping claw includes two aligned and spaced claw plates, the upper end of which is provided with a sliding groove that passes through it along the longitudinal direction, and the connecting rod is slidably inserted into the sliding groove.

[0016] As a preferred technical solution, a U-shaped groove is provided on the upper side of the storage platform, and multiple transverse slots are provided on both sides of the storage platform, with the gripping claws corresponding to the slots.

[0017] As a preferred technical solution, the storage platform is provided with multiple support frames on its lower side.

[0018] The present invention also provides a storage and transportation method, characterized in that the storage and transportation system is used to store and transport longitudinally distributed reinforcing bars, comprising the following steps:

[0019] S1. Store the longitudinally distributed reinforcing bars on the storage platform;

[0020] S2. The longitudinally distributed steel bars are cut using steel bar processing equipment;

[0021] S3. The drive device drives the gripping mechanism to close, gripping and cutting the longitudinally distributed steel bars;

[0022] S4. Use a lifting device to lift the lifting components to the designated position;

[0023] S5. The drive unit drives the gripping mechanism to open, completing the unloading process.

[0024] Compared with traditional technical solutions, the beneficial effects of the present invention are:

[0025] 1) The storage platform can serve as both a storage platform for longitudinally distributed reinforcing bars and a storage platform for the lifting equipment system. It can receive longitudinally distributed reinforcing bars that have been processed and cut, and it can also hold lifting equipment components. The drive device drives the telescopic components to extend and retract, thereby driving the gripping mechanism to open and close. The gripping mechanism is used to grip the longitudinally distributed reinforcing bars, and then the lifting equipment as a whole is lifted to the designated position. This realizes the integrated construction of storage and transportation of longitudinally distributed reinforcing bars, improves construction stability, increases construction efficiency, and reduces the labor intensity of construction personnel.

[0026] 2) The lifting point support facilitates the connection of the gantry crane or trolley crane hook, and the inclined cable strengthens the overall rigidity of the main beam and reduces deformation;

[0027] 3) The telescopic component drives the connecting rod to slide in the sliding groove, thereby causing the claw to rotate around the gripping fixed seat, so that the gripping mechanism can reach the open or closed state;

[0028] 4) The U-shaped groove limits the longitudinally distributed reinforcing bars, and the broken groove forms an intermittent structure, which makes it easier for the gripping mechanism to grip the longitudinally distributed reinforcing bars. Attached Figure Description

[0029] Figure 1 A three-dimensional structural diagram of a storage and transportation system provided in an embodiment of the present invention;

[0030] Figure 2 A view from another direction;

[0031] Figure 3 A partial structural diagram of a storage and transportation system provided in one embodiment of the present invention;

[0032] Figure 4A structural diagram of a grasping component provided in one embodiment of the present invention;

[0033] Figure 5 A flowchart of a storage and transport method provided in an embodiment of the present invention.

[0034] exist Figures 1-5 In the middle section, 1. Storage platform; 101. Slot; 2. Main beam; 201. Beam section; 202. Node connection plate; 3. Support plate; 301. Arc-shaped part; 302. Support block; 4. Gripping mechanism; 401. Gripping fixed seat; 402. Gripping claw; 4021. Claw plate; 40211. Sliding groove; 403. Fixed base; 404. Pin shaft; 5. Telescopic component; 6. Drive device; 601. Drive motor; 602. Hydraulic pump; 7. Connecting sleeve; 8. Connecting rod; 9. Lifting point bracket; 10. First inclined tie connecting plate; 11. Second inclined tie connecting plate; 12. First inclined tie fixing seat; 13. Second inclined tie fixing seat; 14. First inclined tie cable; 15. Second inclined tie cable; 16. Third inclined tie fixing seat; 17. Fourth inclined tie fixing seat; 18. Third inclined tie cable; 19. Fourth inclined tie cable; 20. Support frame; 21. Signal control cabinet; 22. Limiting plate; 23. Limiting bolt; 24. Rebar processing equipment; 25. Longitudinal continuous distributed reinforcing bars. Detailed Implementation

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "top", "bottom", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] Please refer to Figures 1-5An embodiment of the present invention provides a longitudinally distributed reinforcing bar storage and transportation system for precast railway box girders, comprising a storage platform 1, a hoisting assembly, and multiple gripping assemblies disposed on the main beam 2. The storage platform 1 is used to store longitudinally distributed reinforcing bars 25. The hoisting assembly includes the main beam 2 extending longitudinally and multiple support plates 3 disposed on the lower side of the main beam 2. The support plates 3 overlap the upper side of the storage platform 1. The main beam 2 is located above the storage platform 1, and the support plates 3 provide support for the main beam 2. The gripping assemblies are used to grip the longitudinally distributed reinforcing bars 25. The gripping assemblies include a gripping mechanism 4 disposed on the main beam 2, a telescopic member 5, and a mechanism for driving the telescopic member 5 to extend and retract. The drive device 6, the telescopic member 5 is connected to the gripping mechanism 4, and the storage platform 1 can serve as both a storage platform for longitudinally continuous distributed steel bars 25 and a storage platform for the lifting system. It can both receive and cut longitudinally continuous distributed steel bars 25 and place the lifting assembly. The drive device 6 drives the telescopic member 5 to extend and retract, thereby driving the gripping mechanism 4 to open and close. The gripping mechanism 4 is used to grip the longitudinally continuous distributed steel bars 25 and then lift the entire lifting assembly to the designated position. It can lift 30-60 longitudinally continuous distributed steel bars 25 at a time, realizing integrated construction of storage and transportation of longitudinally continuous distributed steel bars 25, improving construction stability, increasing construction efficiency, and reducing the labor intensity of construction personnel.

[0038] like Figure 4 As shown, the gripping mechanism 4 includes gripping fixing seats 401, gripping claws 402, and a fixed base 403 detachably disposed on the upper side of the main beam 2, respectively disposed on both sides of the main beam 2. The gripping claws 402 are rotatably connected to the gripping fixing seats 401. The telescopic member 5 is connected to the gripping claws 402 at both ends. The telescopic member 5 is fixedly disposed on the fixed base 403. Specifically, the gripping fixing seats 401 are rotatably inserted with a pin 404, which passes through the middle of the gripping claws 402. The telescopic member 5 drives the gripping claws 402 to rotate around the pin 404.

[0039] Furthermore, such as Figure 4 As shown, the two output ends of the telescopic member 5 are respectively provided with connecting sleeves 7. A connecting rod 8 is fixedly provided at one end of the connecting sleeve 7 away from the telescopic member 5. The gripping claw 402 includes two aligned and spaced claw pieces 4021. The upper end of the claw piece 4021 is provided with a sliding groove 40211 that passes through it along the longitudinal direction. The connecting rod 8 is slidably inserted into the sliding groove 40211. Both ends of the connecting rod 8 extend into the sliding grooves 40211 on the two claw pieces 4021 respectively. The telescopic member 5 drives the connecting rod 8 to slide in the sliding groove 40211, thereby driving the claw pieces 4021 to rotate around the gripping fixed seat 401, so that the gripping mechanism 4 reaches the open or closed state.

[0040] Specifically, such as Figure 4As shown, the gripper 402 is crab claw shaped, which can better hold the longitudinally distributed steel bars 25 and prevent them from falling during hoisting.

[0041] like Figure 4 As shown, a slot (not shown) is provided on the upper side of the support plate 3, and the main beam 2 is welded into the slot. The support plate 3 has two symmetrical arc-shaped parts 301, and a support block 302 is provided at the lower part of the arc-shaped parts 301. The support block 302 cooperates with the storage platform 1 to form a support.

[0042] like Figure 1-Figure 4 As shown, at least one lifting point bracket 9 is provided on the upper side of the main beam 2. The lifting point bracket 9 is convenient for connecting the hook of the gantry crane or gantry crane, making lifting more convenient. The number of lifting point brackets 9 is set according to the length of the main beam 2. Specifically, two lifting point brackets 9 are provided on the upper side of the main beam 2, which provides better lifting stability.

[0043] like Figure 1-Figure 4 As shown, a first inclined connecting plate 10 and a second inclined connecting plate 11 are respectively provided on both sides of the suspension point bracket 9. A first inclined fixing seat 12 and a second inclined fixing seat 13 are respectively provided on the outer periphery of both sides of the suspension point bracket 9. A first inclined cable 14 is connected between the first inclined connecting plate 10 and the first inclined fixing seat 12. A second inclined cable 15 is connected between the second inclined connecting plate 11 and the second inclined fixing seat 13. The first inclined fixing seat 12 and the second inclined fixing seat 13 are symmetrically fixed on the upper side of the main beam 2. The inclined cable is bolted to the inclined connecting plate and the inclined fixing seat to enhance the overall rigidity of the main beam 2 and reduce deformation.

[0044] Furthermore, such as Figure 1-Figure 4 As shown, a third inclined bracing fixing seat 16 and a fourth inclined bracing fixing seat 17 are symmetrically fixed on the upper side of the main beam 2. The third inclined bracing fixing seat 16 is located between the first inclined bracing fixing seat 12 and the lifting point bracket 9. The fourth inclined bracing fixing seat 17 is located between the second inclined bracing fixing seat 13 and the lifting point bracket 9. A third inclined cable 18 is connected between the third inclined bracing fixing seat 16 and the first inclined bracing connecting plate 10. A fourth inclined cable 19 is connected between the fourth inclined bracing fixing seat 17 and the second inclined bracing connecting plate 11. This further improves the overall rigidity of the main beam 2. When there are two lifting point brackets 9, each lifting point bracket 9 is equipped with four inclined bracing fixing seats. In this way, the overall strength of the main beam 2 is higher and the lifting stability is better.

[0045] Specifically, such as Figure 1-Figure 4As shown, the main beam 2 is a multi-section structure. Based on the length of the longitudinally distributed reinforcing bars 25, the main beam 2 is set as a multi-section structure. The main beam 2 is composed of multiple beam sections 201. The ends of the beam sections 201 are provided with node connection plates 202. Adjacent two node connection plates 202 are connected by bolts or welding, making the installation of the main beam 2 more flexible.

[0046] like Figure 3 and Figure 4 As shown, a U-shaped groove (not shown) is provided on the upper side of the storage platform 1. Multiple transverse grooves 101 are provided on both sides of the storage platform 1. The gripping claws 402 are correspondingly arranged with the grooves 101. The longitudinally distributed steel bars 25 are stored in the U-shaped groove. The U-shaped groove limits the longitudinally distributed steel bars 25 to prevent them from falling off the storage platform 1. The grooves 101 form an intermittent structure, which facilitates the gripping mechanism 4 to grip the longitudinally distributed steel bars 25.

[0047] like Figure 1-Figure 4 As shown, multiple support frames 20 are provided on the lower side of the storage platform 1. The multiple support frames 20 provide stable support and improve the load capacity of the storage platform 1.

[0048] like Figure 4 As shown, the drive device 6 includes a drive motor 601 and a hydraulic pump 602. The telescopic component 5 is a hydraulic cylinder. A hydraulic oil tank is also provided on the upper side of the main beam 2. The hydraulic oil tank is connected to the hydraulic cylinder through an oil pipe. The drive motor 601 drives the hydraulic pump 602 to operate, pumping the hydraulic oil in the hydraulic oil tank into the hydraulic cylinder, thereby controlling the extension and retraction of the hydraulic cylinder. In order to make it easier to control the gripping mechanism 4, a signal control cabinet 21 is installed on the main beam 2. It can receive remote control signals. The signal control cabinet 21 is electrically connected to the drive motor 601, and the drive motor 601 can be remotely controlled to rotate, making the control more convenient.

[0049] like Figure 4 As shown, limit plates 22 are respectively provided on both sides of the main beam 2, and limit bolts 23 are inserted on the upper part of the limit plates 22 to restrict the displacement of the main beam 2 in the lateral direction. The main beam 2 is more stable when placed on the storage platform 1, and the limit bolts 23 can be adjusted to hold the main beam 2 in place.

[0050] Please see Figures 1-5 The present invention also provides a storage and transportation method, which uses the storage and transportation system to store and hoist longitudinally distributed reinforcing bars 25, including the following steps:

[0051] S1. Place the longitudinally distributed reinforcing bars 25 on the storage platform 1;

[0052] S2. The longitudinally distributed steel bars 25 are processed and cut using steel bar processing equipment 24;

[0053] S3. The drive device 6 drives the gripping mechanism 4 to close and grip the cut longitudinally distributed steel bar 25. Specifically, the drive motor 601 drives the hydraulic pump 602 to rotate, causing the hydraulic cylinder to retract, thereby driving the gripping claw 402 to close and hold the longitudinally distributed steel bar 25.

[0054] S4. Use a lifting device to lift the lifting components to the designated position. Specifically, connect the hook of the gantry crane or trolley crane to the lifting point bracket 9, and then use the gantry crane or trolley crane for lifting.

[0055] S5. The drive device 6 drives the gripping mechanism 4 to open, completing the unloading. Specifically, the drive motor 601 drives the hydraulic pump 602 to rotate, causing the hydraulic cylinder to extend, thereby driving the gripping claw 402 to open.

[0056] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, system embodiments are basically similar to method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this specification. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] The above description is merely an embodiment of one or more embodiments of this specification and is not intended to limit the scope of these embodiments. Various modifications and variations can be made to these embodiments by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of the claims.

Claims

1. A longitudinally distributed steel reinforcement storage and transportation system for precast railway box girders, characterized in that, include: Storage platform, used to store longitudinally distributed reinforcing bars; The hoisting assembly includes a longitudinally extending main beam and a plurality of support plates disposed on the underside of the main beam, the support plates overlapping the upper side of the storage platform, and the main beam being located above the storage platform; Multiple gripping components are disposed on the main beam for gripping the longitudinally distributed reinforcing bars. Each gripping component includes a gripping mechanism, a telescopic member, and a driving device for extending and retracting the telescopic member, all disposed on the main beam. The telescopic member is connected to the gripping mechanism. The gripping mechanism includes gripping fixed seats, gripping claws, and a fixed base detachably disposed on the upper side of the main beam, respectively disposed on both sides of the main beam. The gripping claws are rotatably connected to the gripping fixed seats. Both ends of the telescopic member are connected to the gripping claws, and the telescopic member is fixedly disposed on the fixed base. At least one lifting point bracket is disposed on the upper side of the main beam. A first inclined tie plate and a second inclined tie plate are disposed on both sides of the lifting point bracket, and periphery of both sides of the lifting point bracket is respectively provided with... A first inclined cable fixing seat and a second inclined cable fixing seat are provided. A first inclined cable is connected between the first inclined cable connecting plate and the first inclined cable fixing seat, and a second inclined cable is connected between the second inclined cable connecting plate and the second inclined cable fixing seat. The first and second inclined cable fixing seats are symmetrically fixed on the upper side of the main beam. A third inclined cable fixing seat and a fourth inclined cable fixing seat are symmetrically fixed on the upper side of the main beam. The third inclined cable fixing seat is located between the first inclined cable fixing seat and the suspension point bracket, and the fourth inclined cable fixing seat is located between the second inclined cable fixing seat and the suspension point bracket. A third cable is connected between the third inclined cable fixing seat and the first inclined cable connecting plate, and a fourth cable is connected between the fourth inclined cable fixing seat and the second inclined cable connecting plate.

2. The longitudinally distributed steel reinforcement storage and transportation system for precast railway box girders according to claim 1, characterized in that, The telescopic component has a connecting sleeve at each of its two output ends, and a connecting rod is fixedly installed at the end of the connecting sleeve facing away from the telescopic component.

3. The longitudinally distributed steel reinforcement storage and transportation system for precast railway box girders according to claim 2, characterized in that, The gripping claw includes two aligned and spaced claw plates. The upper end of each claw plate is provided with a sliding groove that passes through it along the longitudinal direction. The connecting rod is slidably inserted into the sliding groove.

4. The longitudinally distributed steel reinforcement storage and transportation system for precast railway box girders according to claim 1, characterized in that, The upper side of the storage platform is provided with a U-shaped groove, and multiple transverse grooves are provided on both sides of the storage platform. The gripping claws are arranged corresponding to the transverse grooves.

5. The longitudinally distributed steel reinforcement storage and transportation system for precast railway box girders according to claim 1, characterized in that, The storage platform is provided with multiple support frames on its underside.

6. A storage and transportation method, characterized in that, The storage and hoisting of longitudinally distributed reinforcing bars using the storage and transportation system described in any one of claims 1-5 includes the following steps: S1. Store the longitudinally distributed reinforcing bars on the storage platform; S2. The longitudinally distributed steel bars are cut using steel bar processing equipment; S3. The drive device drives the gripping mechanism to close, gripping and cutting the longitudinally distributed steel bars; S4. Use a lifting device to lift the lifting components to the designated position; S5. The drive unit drives the gripping mechanism to open, completing the unloading process.

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