Storage and transportation system and storage and transportation method for longitudinal full-length distributed steel bars of railway prefabricated box girder

Abstract

The invention discloses a railway prefabricated box girder longitudinal full-length distribution steel bar storage and transportation system which comprises a storage pedestal, a hoisting assembly and a plurality of grabbing assemblies, the storage pedestal is used for storing longitudinal full-length distribution steel bars, and the hoisting assembly comprises a main beam extending in the longitudinal direction and a plurality of supporting plates arranged on the lower side of the main beam; the supporting plate is in lap joint with the upper side of the storage pedestal, the main beam is located above the storage pedestal, the supporting plate supports the main beam, the grabbing assembly is used for grabbing the longitudinal full-length distributed steel bars, and the grabbing assembly comprises a grabbing mechanism arranged on the main beam, a telescopic piece and a driving device used for driving the telescopic piece to stretch out and draw back. And the telescopic piece is connected with the grabbing mechanism. According to the storage and transportation system, storage and transportation integrated construction of the longitudinal full-length distributed steel bars is achieved, the construction stability is improved, the construction efficiency is improved, and the labor intensity of constructors is reduced. The other purpose of the invention is to provide a storage and transportation method which is simple in step and improves the construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of railway box girder prefabrication construction, and in particular to a longitudinal through-length distributed steel bar storage and transportation system and a storage and transportation method for railway prefabricated box girders. Background Art

[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 construction technology of simply supported box girders with standard railway spans has gradually matured, providing solid technical support for the construction of high-speed railways.

[0003] In the steel bar installation construction process of railway box girder prefabrication, the longitudinal full-length distribution steel bars of the box girder have the characteristics of long length, large number, and large deflection during the lifting process. The operation of the longitudinal full-length distribution steel bars of the box girder is particularly difficult. In the conventional construction method, after the longitudinal full-length distribution steel bars are cut, they are carried by hand or by simple lifting tools to enter the steel bar binding jig, and then hoisted to the designated position by a gantry truck, and then unloaded manually. The process requires about 4-6 construction workers to cooperate, and each time about 10 longitudinal full-length distribution steel bars are operated to the steel bar binding jig. The lifting tools have problems such as large deflection and poor stability, low construction efficiency and high labor intensity. Therefore, a new technical solution is urgently needed to solve at least one of the above technical problems. Summary of the invention

[0004] In view of the above shortcomings, one object of the present invention is to provide a railway prefabricated box girder longitudinal full-length distributed steel bar storage and transportation system, which realizes the integrated construction of longitudinal full-length distributed steel bar storage and transportation, improves construction stability, improves construction efficiency, and reduces the labor intensity of construction personnel. Another object of the present invention is to provide a storage and transportation method with simple steps to improve construction efficiency.

[0005] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the present invention is: A longitudinally distributed steel bar storage and transportation system for railway prefabricated box girders, characterized by comprising: Storage pedestal, used to store longitudinally distributed steel bars; A lifting assembly includes a main beam extending in the longitudinal direction, a plurality of support plates arranged at the lower side of the main beam, the support plates overlap the upper side of the storage pedestal, and the main beam is located above the storage pedestal; A plurality of grabbing assemblies arranged on the main beam are used to grab the longitudinal through-length distributed steel bars. The grabbing assemblies include a grabbing mechanism arranged on the main beam, a telescopic member and a driving device for driving the telescopic member to retract. The telescopic member is connected to the grabbing mechanism.

[0006] As a preferred technical solution, the grabbing mechanism includes a grabbing fixed seat respectively arranged on both sides of the main beam, a grabbing claw and a fixed base detachably arranged on the upper side of the main beam, the grabbing claw is rotatably connected to the grabbing fixed seat, the two ends of the telescopic member are respectively connected to the grabbing claw, and the telescopic member is fixedly arranged on the fixed base.

[0007] As a preferred technical solution, at least one hanging point bracket is arranged on the upper side of the main beam.

[0008] As a preferred technical solution, a first oblique connecting plate and a second oblique connecting plate are respectively provided on both sides of the hanging point bracket, and a first oblique fixing seat and a second oblique fixing seat are respectively provided on the periphery of both sides of the hanging point bracket, a first oblique cable is connected between the first oblique connecting plate and the first oblique fixing seat, a second oblique cable is connected between the second oblique connecting plate and the second oblique fixing seat, and the first oblique fixing seat and the second oblique fixing seat are symmetrically fixed on the upper side of the main beam.

[0009] As a preferred technical solution, a third oblique-stayed fixing seat and a fourth oblique-stayed fixing seat are symmetrically fixed on the upper side of the main beam, the third oblique-stayed fixing seat is located between the first oblique-stayed fixing seat and the hanging point bracket, the fourth oblique-stayed fixing seat is located between the second oblique-stayed fixing seat and the hanging point bracket, a third oblique cable is connected between the third oblique-stayed fixing seat and the first oblique-stayed connecting plate, and a fourth oblique cable is connected between the fourth oblique-stayed fixing seat and the second oblique-stayed connecting plate.

[0010] As a preferred technical solution, two output ends of the telescopic member are respectively provided with connecting sleeves, and a connecting rod is fixedly provided at one end of the connecting sleeve away from the telescopic member.

[0011] As a preferred technical solution, the grabbing clamp comprises two aligned and spaced claws, the upper end of the claw is provided with a sliding groove penetrating the claw along the longitudinal direction, and the connecting rod can be slidably inserted in the sliding groove.

[0012] As a preferred technical solution, a U-shaped groove is provided on the upper side of the storage base, and a plurality of broken grooves penetrating the storage base in the transverse direction are respectively provided on both sides of the storage base, and the grabbing claws are provided corresponding to the broken grooves.

[0013] As a preferred technical solution, a plurality of support frames are arranged on the lower side of the storage base.

[0014] The present invention also provides a storage and transportation method, characterized in that the storage and transportation system is used to store and lift the longitudinally distributed steel bars, comprising the following steps: S1. Store the longitudinally distributed steel bars on the storage pedestal; S2, using steel bar processing equipment to process and cut the longitudinal full-length distributed steel bars; S3, the driving device drives the grabbing mechanism to close and grab the cut longitudinal full-length distributed steel bars; S4. Use a lifting device to lift the lifting component to the designated location; S5. The driving device drives the grabbing mechanism to open and complete the unloading.

[0015] Compared with the traditional technical solution, the beneficial effects of the present invention are: 1) The storage pedestal can also serve as a storage pedestal for the longitudinal full-length distributed steel bars and the lifting device system. It can not only receive the longitudinal full-length distributed steel bars that have been processed and cut along the longitudinal direction, but also place the lifting device components. The driving device drives the telescopic parts to extend and retract, thereby driving the grabbing mechanism to open and close. The grabbing mechanism is used to grab the longitudinal full-length distributed steel bars, and then the lifting assembly is hoisted to the designated position as a whole, realizing the integrated construction of storage and transportation of longitudinal full-length distributed steel bars, improving construction stability, improving construction efficiency, and reducing the labor intensity of construction personnel; 2) The lifting point bracket is convenient for connecting the gantry crane or gantry crane hook, and the inclined cable strengthens the overall rigidity of the main beam and reduces deformation; 3) The telescopic member drives the connecting rod to slide in the sliding groove, thereby driving the claw piece to rotate around the grabbing fixed seat, so that the grabbing mechanism reaches an open or closed state; 4) The U-shaped groove limits the longitudinal full-length distributed steel bars, and the broken groove forms an intermittent structure, which is convenient for the grasping mechanism to grasp the longitudinal full-length distributed steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural diagram of a storage and transportation system provided by one embodiment of the present invention; Figure 2 For the view in the other direction; Figure 3 A partial structural diagram of a storage and transportation system provided for one embodiment of the present invention; Figure 4 A structural diagram of a grabbing assembly provided for one embodiment of the present invention; Figure 5 A flowchart of a storage and operation method provided for one embodiment of the present invention.

[0017] exist Figure 1-Figure 5Among them, 1. storage pedestal; 101. broken groove; 2. main beam; 201. beam section; 202. node connecting plate; 3. support plate; 301. arc-shaped part; 302. support block; 4. grabbing mechanism; 401. grabbing fixed seat; 402. grabbing claw; 4021. claw piece; 40211. sliding groove; 403. fixed base; 404. pin shaft; 5. telescopic member; 6. driving device; 601. driving motor; 602. hydraulic pump; 7. connecting sleeve; 8. connecting rod; 9. Lifting point bracket; 10. First oblique-stayed connecting plate; 11. Second oblique-stayed connecting plate; 12. First oblique-stayed fixing seat; 13. Second oblique-stayed fixing seat; 14. First oblique-stayed cable; 15. Second oblique-stayed cable; 16. Third oblique-stayed fixing seat; 17. Fourth oblique-stayed fixing seat; 18. Third oblique-stayed cable; 19. Fourth oblique-stayed cable; 20. Support frame; 21. Signal control cabinet; 22. Limit plate; 23. Limit bolt; 24. Steel bar processing equipment; 25. Longitudinal full-length distribution steel bars. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings.

[0019] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "top", "bottom", "left", "right", "front", "back", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] Please refer to Figure 1-Figure 5An embodiment of the present invention provides a railway prefabricated box beam longitudinal full-length distributed steel bar storage and transportation system, comprising a storage pedestal 1, a lifting assembly and a plurality of grabbing assemblies arranged on the main beam 2, wherein the storage pedestal 1 is used to store longitudinal full-length distributed steel bars 25, the lifting assembly comprises a main beam 2 extending in the longitudinal direction, a plurality of support plates 3 arranged on the lower side of the main beam 2, the support plates 3 overlap the upper side of the storage pedestal 1, the main beam 2 is located above the storage pedestal 1, the support plates 3 support the main beam 2, the grabbing assembly is used to grab the longitudinal full-length distributed steel bars 25, the grabbing assembly comprises a grabbing mechanism 4 arranged on the main beam 2, a telescopic member 5 and a device for driving the telescopic member 5 to extend and retract The driving device 6, the telescopic part 5 is connected with the grabbing mechanism 4, the storage platform 1 can also serve as the storage platform 1 of the longitudinal full-length distributed steel bars 25 and the sling system, which can not only undertake the longitudinal full-length distributed steel bars 25 that have been processed and cut along the longitudinal direction, but also place the sling components. The driving device 6 drives the telescopic part 5 to retract, thereby driving the grabbing mechanism 4 to open and close. The grabbing mechanism 4 is used to grab the longitudinal full-length distributed steel bars 25, and then lift the lifting assembly as a whole to the designated position. 30-60 longitudinal full-length distributed steel bars 25 can be lifted at one time, realizing the integrated storage and transportation construction of the longitudinal full-length distributed steel bars 25, improving the construction stability, improving the construction efficiency, and reducing the labor intensity of the construction personnel.

[0021] like Figure 4 As shown, the grabbing mechanism 4 includes a grabbing fixed seat 401 respectively arranged on both sides of the main beam 2, a grabbing claw 402 and a fixed base 403 detachably arranged on the upper side of the main beam 2, the grabbing claw 402 is rotatably connected to the grabbing fixed seat 401, the two ends of the telescopic member 5 are respectively connected to the grabbing claw 402, and the telescopic member 5 is fixedly arranged on the fixed base 403. Specifically, the grabbing fixed seat 401 is rotatably inserted with a pin shaft 404, the pin shaft 404 passes through the middle part of the grabbing claw 402, and the telescopic member 5 drives the grabbing claw 402 to rotate around the pin shaft 404.

[0022] Further, such as Figure 4 As shown, the two output ends of the telescopic member 5 are respectively provided with connecting sleeves 7, and a connecting rod 8 is fixedly provided at one end of the connecting sleeve 7 facing away from the telescopic member 5. The grabbing clamp 402 includes two aligned and spaced claw pieces 4021, and the upper end of the claw piece 4021 is provided with a sliding groove 4021 that penetrates it along the longitudinal direction. The connecting rod 8 can be slidably inserted in the sliding groove 40211, and the two ends of the connecting rod 8 are respectively extended into the sliding grooves 40211 on the two claw pieces 4021. The telescopic member 5 drives the connecting rod 8 to slide in the sliding groove 40211, thereby driving the claw piece 4021 to rotate around the grabbing fixed seat 401, so that the grabbing mechanism 4 reaches an open or closed state.

[0023] Specifically, Figure 4As shown, the grabbing claw 402 is in the shape of a crab claw, which can better hold the longitudinally distributed steel bars 25 and prevent them from falling during the lifting process.

[0024] like Figure 4 As shown, a slot (not marked) is provided on the upper side of the support plate 3, the main beam 2 is welded in the slot, the support plate 3 has two symmetrical arc portions 301, a support block 302 is provided at the lower portion of the arc portion 301, and the support block 302 cooperates with the storage base 1 to form a support.

[0025] like Figure 1-Figure 4 As shown, at least one lifting point bracket 9 is arranged on the upper side of the main beam 2. The lifting point bracket 9 is convenient for connecting to a gantry crane hook or a gantry crane hook, making lifting more convenient. The number of the lifting point brackets 9 is set according to the length of the main beam 2. Specifically, two lifting point brackets 9 are arranged on the upper side of the main beam 2, and the lifting stability is better.

[0026] like Figure 1-Figure 4 As shown, a first oblique connecting plate 10 and a second oblique connecting plate 11 are respectively provided on both sides of the suspension point bracket 9, and a first oblique fixing seat 12 and a second oblique fixing seat 13 are respectively provided on the periphery of both sides of the suspension point bracket 9, a first oblique cable 14 is connected between the first oblique connecting plate 10 and the first oblique fixing seat 12, a second oblique cable 15 is connected between the second oblique connecting plate 11 and the second oblique fixing seat 13, the first oblique fixing seat 12 and the second oblique fixing seat 13 are symmetrically fixed on the upper side of the main beam 2, and the oblique cable, the oblique connecting plate and the oblique fixing seat are bolted to strengthen the overall stiffness of the main beam 2 and reduce deformation.

[0027] Further, such as Figure 1-Figure 4 As shown, a third oblique-stayed fixing seat 16 and a fourth oblique-stayed fixing seat 17 are symmetrically fixed on the upper side of the main beam 2, the third oblique-stayed fixing seat 16 is located between the first oblique-stayed fixing seat 12 and the hanging point bracket 9, the fourth oblique-stayed fixing seat 17 is located between the second oblique-stayed fixing seat 13 and the hanging point bracket 9, a third oblique-stayed cable 18 is connected between the third oblique-stayed fixing seat 16 and the first oblique-stayed connecting plate 10, and a fourth oblique-stayed cable 19 is connected between the fourth oblique-stayed fixing seat 17 and the second oblique-stayed connecting plate 11, so as to further improve the overall stiffness of the main beam 2, and when the number of the hanging point brackets 9 is 2, each hanging point bracket 9 is correspondingly provided with 4 oblique-stayed fixing seats, so that the overall strength of the main beam 2 is higher and the lifting stability is also better.

[0028] Specifically, Figure 1-Figure 4As shown, the main beam 2 is a multi-section structure. According to the length of the longitudinal through-length distributed steel bars 25, the main beam 2 is arranged into a multi-section structure. The main beam 2 is composed of a plurality of beam sections 201. Node connecting plates 202 are arranged at the ends of the beam sections 201. Two adjacent node connecting plates 202 are connected by bolts or welding, and the installation of the main beam 2 is more flexible.

[0029] like Figure 3 and Figure 4 As shown, a U-shaped groove (not marked) is provided on the upper side of the storage base 1, and a plurality of broken grooves 101 are respectively provided on both sides of the storage base 1 and penetrate the storage base 1 in the transverse direction. The grabbing claws 402 are arranged corresponding to the broken grooves 101, and the longitudinal full-length distributed steel bars 25 are stored in the U-shaped groove. The U-shaped groove limits the longitudinal full-length distributed steel bars 25 to prevent the longitudinal full-length distributed steel bars 25 from falling from the storage base 1, and the broken grooves 101 form an intermittent structure, which is convenient for the grabbing mechanism 4 to grab the longitudinal full-length distributed steel bars 25.

[0030] like Figure 1-Figure 4 As shown, a plurality of support frames 20 are disposed at the lower side of the storage platform 1 , and the plurality of support frames 20 provide stable support to improve the load capacity of the storage platform 1 .

[0031] like Figure 4 As shown, the driving device 6 includes a driving motor 601 and a hydraulic pump 602. The telescopic member 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 driving motor 601 drives the hydraulic pump 602 to operate, and the hydraulic oil in the hydraulic oil tank is pumped into the hydraulic cylinder, thereby controlling the extension and retraction of the hydraulic cylinder. In order to more conveniently control the grabbing mechanism 4, a signal control cabinet 21 is installed on the main beam 2, which can receive remote control signals. The signal control cabinet 21 is electrically connected to the driving motor 601, and the rotation of the driving motor 601 is remotely controlled, making the control more convenient.

[0032] 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 limit the displacement of the main beam 2 in the lateral direction. The main beam 2 is placed on the storage base 1 for greater stability, and the limit bolts 23 can be adjusted to support the main beam 2.

[0033] See also Figure 1-Figure 5 The present invention also provides a storage and transportation method, which uses the storage and transportation system to store and lift the longitudinal full-length distributed steel bars 25, including the following steps: S1, storing the longitudinal full-length distribution steel bars 25 on the storage base 1; S2, using the steel bar processing equipment 24 to process and cut the longitudinal full-length distributed steel bars 25; S3, the driving device 6 drives the grabbing mechanism 4 to close and grab the cut longitudinal full-length distributed steel bar 25. Specifically, the driving motor 601 drives the hydraulic pump 602 to rotate, so that the hydraulic cylinder retracts, thereby driving the grabbing claw 402 to close and hold the longitudinal full-length distributed steel bar 25; S4, using a lifting device to lift the lifting assembly to a designated position, specifically, connecting the hook of a gantry crane or a gantry crane to the lifting point bracket 9, and then lifting the assembly with the gantry crane or the gantry crane; S5. The driving device 6 drives the grabbing mechanism 4 to open and complete the unloading. Specifically, the driving motor 601 drives the hydraulic pump 602 to rotate, so that the hydraulic cylinder extends, thereby driving the grabbing claw 402 to open.

[0034] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. In the description of this specification, the description of the reference term "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this specification. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0035] The above description is only an example of one or more embodiments of the present specification and is not intended to limit one or more embodiments of the present specification. For those skilled in the art, one or more embodiments of the present specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present specification shall be included in the scope of the claims.

Claims

1. A longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders, characterized in that: include: Storage pedestal, used to store longitudinally distributed steel bars; A lifting assembly includes a main beam extending in the longitudinal direction, a plurality of support plates arranged at the lower side of the main beam, the support plates overlap the upper side of the storage pedestal, and the main beam is located above the storage pedestal; A plurality of grabbing assemblies arranged on the main beam are used to grab the longitudinal through-length distributed steel bars. The grabbing assemblies include a grabbing mechanism arranged on the main beam, a telescopic member and a driving device for driving the telescopic member to retract. The telescopic member is connected to the grabbing mechanism.

2. The longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders according to claim 1 is characterized in that: The grabbing mechanism includes a grabbing fixed seat, a grabbing claw and a fixed base detachably arranged on the upper side of the main beam respectively. The grabbing claw is rotatably connected to the grabbing fixed seat, and the two ends of the telescopic member are respectively connected to the grabbing claw, and the telescopic member is fixedly arranged on the fixed base.

3. The longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders according to claim 1 is characterized in that: At least one suspension point bracket is arranged on the upper side of the main beam.

4. The longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders according to claim 3 is characterized in that: A first oblique connecting plate and a second oblique connecting plate are respectively arranged on both sides of the hanging point bracket, and a first oblique fixing seat and a second oblique fixing seat are respectively arranged on the periphery of both sides of the hanging point bracket, a first oblique cable is connected between the first oblique connecting plate and the first oblique fixing seat, a second oblique cable is connected between the second oblique connecting plate and the second oblique fixing seat, and the first oblique fixing seat and the second oblique fixing seat are symmetrically fixed on the upper side of the main beam.

5. The railway prefabricated box girder longitudinal distribution steel bar storage and transportation system according to claim 4 is characterized in that: A third oblique-stayed fixing seat and a fourth oblique-stayed fixing seat are symmetrically fixed on the upper side of the main beam, the third oblique-stayed fixing seat is located between the first oblique-stayed fixing seat and the hanging point bracket, the fourth oblique-stayed fixing seat is located between the second oblique-stayed fixing seat and the hanging point bracket, a third oblique-stayed cable is connected between the third oblique-stayed fixing seat and the first oblique-stayed connecting plate, and a fourth oblique-stayed cable is connected between the fourth oblique-stayed fixing seat and the second oblique-stayed connecting plate.

6. The railway prefabricated box girder longitudinal distribution steel bar storage and transportation system according to claim 2 is characterized in that: The two output ends of the telescopic member are respectively provided with connecting sleeves, and a connecting rod is fixedly provided at one end of the connecting sleeve away from the telescopic member.

7. The longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders according to claim 6 is characterized in that: The grabbing clamp comprises two claw pieces which are aligned and spaced apart from each other. The upper end of the claw piece is provided with a sliding groove which penetrates the claw piece along the longitudinal direction. The connecting rod can be slidably inserted in the sliding groove.

8. The longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders according to claim 2 is characterized in that: A U-shaped groove is arranged on the upper side of the storage base, and a plurality of broken grooves penetrating the storage base in the transverse direction are arranged on both sides of the storage base, and the grabbing clamps are arranged corresponding to the broken grooves.

9. The longitudinal distribution steel bar storage and transportation system for railway prefabricated box girders according to claim 1 is characterized in that: A plurality of support frames are arranged on the lower side of the storage platform.

10. A storage and transportation method, characterized in that: The storage and transportation system according to any one of claims 1 to 9 is used to store and lift longitudinally distributed steel bars, comprising the following steps: S1. Store the longitudinally distributed steel bars on the storage pedestal; S2, using steel bar processing equipment to process and cut the longitudinal full-length distributed steel bars; S3, the driving device drives the grabbing mechanism to close and grab the cut longitudinal full-length distributed steel bars; S4. Use a lifting device to lift the lifting component to the designated location; S5. The driving device drives the grabbing mechanism to open and complete the unloading.

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