Large-span steel bridge deck 3D integrated printing equipment and method

Abstract

The invention relates to the technical field of large-span steel bridges, in particular to large-span steel bridge deck 3D integrated printing equipment and method. Comprising two moving bases, two mounting arms, a top plate, a top moving guide rail set, a carrying plate, a material conveying unit, a bottom moving guide rail set, a sliding base, a mounting part and a 3D printing head, a moving platform moves on a moving path, the material conveying unit conveys materials for 3D printing to the 3D printing head in the moving process, the 3D printing head is used for spraying the materials, and the 3D printing head is used for spraying the materials. In the process that the 3D printing head sprays materials, the position of the 3D printing head is adjusted through cooperation of the top moving guide rail set and the bottom moving guide rail set, printing of the bridge deck structure is completed, by adopting the structure, building of the bridge deck structure can be automatically completed on the construction site, and compared with a traditional prefabricating and assembling method and a cast-in-place method, the construction efficiency is greatly improved. The method has the advantages of shorter site construction time and lower labor cost.

Description

Technical Field

[0001] The present invention relates to the technical field of long - span steel bridges, and particularly relates to a 3D integrated printing device and method for the deck of a long - span steel bridge. Background Technique

[0002] As an important part of modern transportation infrastructure, long - span steel bridges play a key role in crossing wide waters such as rivers and straits, as well as complex terrains such as valleys. The construction quality of their decks is directly related to the service life, safety and traffic capacity of the bridges. Traditional construction methods for the decks of long - span steel bridges mainly include prefabrication and assembly method and on - site casting method.

[0003] The prefabrication and assembly method is to pre - fabricate each component of the deck in the factory and then transport it to the construction site for assembly. However, since the components are pre - fabricated in the factory, their size and shape are restricted by transportation conditions. For the decks of long - span steel bridges, the components are often large in volume and heavy in weight, and special transportation equipment and routes are required during transportation, which increases the transportation cost and difficulty.

[0004] The on - site casting method is to directly pour the deck concrete at the construction site. On - site casting requires a large number of formworks and support structures, the construction preparation work is cumbersome, and the erection and removal of the formworks require a large amount of time and labor costs.

[0005] In summary, the traditional construction methods for the decks of long - span steel bridges have the problems of too long on - site construction time and too high labor costs. Summary of the Invention

[0006] The purpose of the present invention is to provide a 3D integrated printing device and method for the deck of a long - span steel bridge. The traditional construction methods for the decks of long - span steel bridges have the problems of too long on - site construction time and too high labor costs.

[0007] To achieve the above object, the present invention provides a 3D integrated printing device for the deck of a long - span steel bridge. The 3D integrated printing device for the deck of a long - span steel bridge includes two moving bases, two mounting arms, a top plate, a top moving guide rail group, a carrier plate, a material conveying unit, a bottom moving guide rail group, a sliding seat, a mounting part and a 3D printing head. Predetermined paths are arranged on both sides of the bridge deck to be constructed, the moving base is arranged at each predetermined path, the mounting arm is arranged on the upper surface of each moving base, and the top plate is arranged between the tops of the two mounting arms;

[0008] The upper surface of the top plate is provided with the top moving guide rail group, on which the load plate is slidably arranged. The load plate is provided with the material conveying unit. The bottom of the top plate is provided with the bottom moving guide rail group, on which the sliding seat is slidably arranged. One end of the mounting member is connected to the sliding seat, and the other end of the mounting member is provided with the 3D printing head. The output end of the material conveying unit is communicated with the 3D printing head.

[0009] Among them, the top moving guide rail group includes a top guide rail, a first threaded rod, a first ball screw nut pair and a first servo motor. The top guide rail is installed on the upper surface of the top plate. The first threaded rod is rotatably arranged on the top guide rail. The first ball screw nut pair is arranged on the first threaded rod and is connected to the load plate. One end of the first threaded rod extending outside the top guide rail is provided with a first connecting head. The first servo motor is arranged at one end of the top plate close to the first connecting head. The output end of the first servo motor is connected to the first connecting head through a first coupling.

[0010] Among them, the bottom moving guide rail group includes a bottom guide rail, a second threaded rod, a second ball screw nut pair and a second servo motor. The bottom guide rail is installed on the bottom of the top plate. The second threaded rod is rotatably arranged on the bottom guide rail. The second ball screw nut pair is arranged on the second threaded rod and is connected to the sliding seat. One end of the second threaded rod extending outside the bottom guide rail is provided with a second connecting head. The second servo motor is arranged at one end of the top plate close to the second connecting head. The output end of the second servo motor is connected to the second connecting head through a second coupling.

[0011] Among them, the material conveying unit includes a placement rack, a transfer pump and a storage barrel. The placement rack is arranged on one side of the load plate. The storage barrel is arranged on the placement rack. The transfer pump is installed on the upper surface of the load plate. The input end of the transfer pump is located inside the storage barrel. The output end of the transfer pump is connected to the 3D printing head through a pipeline.

[0012] Among them, the large-span steel bridge deck 3D integrated printing device further includes an auxiliary support member. A rolling groove is arranged on one side of the top plate close to the placement rack. The auxiliary support member is arranged on one side of the placement rack close to the rolling groove. One end of the auxiliary support member is connected to the placement rack, and the other end of the auxiliary support member is provided with a roller, and the roller is located inside the rolling groove.

[0013] Among them, the auxiliary support member includes a fixing plate and a support arm. A roller is rotatably provided at one end of the support arm, and the fixing plate is fixedly provided at the other end of the support arm. The fixing plate is detachably connected to the placement rack.

[0014] The present invention also provides a 3D integrated printing method for a long-span steel bridge deck, which is applied to the 3D integrated printing equipment for a long-span steel bridge deck as described above, and includes the following steps:

[0015] Transport the mobile platform on the corresponding moving path, and set the parameters of the mobile platform, the 3D printing head, the top moving guide rail group, and the bottom moving guide rail group;

[0016] The mobile platform moves on the moving path according to the preset moving speed parameter. During the movement, the material conveying unit conveys the 3D printing material to the 3D printing head, and the 3D printing head sprays the material;

[0017] During the process of the 3D printing head spraying the material, use the preset parameters of the top moving guide rail group and the bottom moving guide rail group to adjust the position of the 3D printing head to complete the printing of the bridge deck structure;

[0018] After the current bridge deck printing structure is completed, install embedded parts and sensors on it, and then perform subsequent printing;

[0019] Perform necessary post-processing operations on the completed bridge deck structure.

[0020] A 3D integrated printing equipment and method for a long-span steel bridge deck of the present invention includes two moving bases, two mounting arms, a top plate, a top moving guide rail group, a load-carrying plate, a material conveying unit, a bottom moving guide rail group, a sliding seat, a mounting member, and a 3D printing head. The mobile platform moves on the moving path. During the movement, the material conveying unit conveys the 3D printing material to the 3D printing head, and the 3D printing head sprays the material. During the process of the 3D printing head spraying the material, the top moving guide rail group and the bottom moving guide rail group are used in cooperation to adjust the position of the 3D printing head to complete the printing of the bridge deck structure. With the above structure, the construction of the bridge deck structure can be automatically completed at the construction site. Compared with the traditional prefabrication and assembly method and on-site casting method, it has the advantages of shorter on-site construction time and lower labor cost. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a 3D integrated printing device for the deck of a long-span steel bridge provided by the present invention.

[0023] Figure 2 It is provided by the present invention Figure 1 An enlarged view of the local structure at point A of

[0024] Figure 3 It is provided by the present invention Figure 1 A schematic structural diagram from another perspective of

[0025] Figure 4 It is provided by the present invention Figure 3 An enlarged view of the local structure at point B of

[0026] Figure 5 It is a schematic structural diagram of the bottom of the top provided by the present invention.

[0027] Figure 6 It is provided by the present invention Figure 5 An enlarged view of the local structure at point C of

[0028] Figure 7 It is provided by the present invention Figure 5 An enlarged view of the local structure at point D of

[0029] Figure 8 It is a flowchart of the steps of a 3D integrated printing method for the deck of a long-span steel bridge provided by the present invention.

[0030] 101 - Mobile base, 102 - Installation arm, 103 - Top plate, 104 - Loading plate, 105 - Sliding seat, 106 - 3D printing head, 107 - Top guide rail, 108 - First threaded rod, 109 - First ball screw nut pair, 110 - First servo motor, 111 - First connector, 112 - First coupling, 113 - Bottom guide rail, 114 - Second threaded rod, 115 - Second ball screw nut pair, 116 - Second servo motor, 117 - Second connector, 118 - Second coupling, 119 - Connecting rod, 120 - Fixed block, 121 - Installation ring, 122 - Placing rack, 123 - Delivery pump, 124 - Storage bucket, 125 - Rolling groove, 126 - Roller, 127 - Fixed plate, 128 - Support arm. Detailed implementation manners

[0031] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein like or similar reference numerals denote like or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0032] Please refer to Figures 1 to 7 , the present invention provides a 3D integrated printing device for the deck of a long-span steel bridge. The 3D integrated printing device for the deck of a long-span steel bridge includes two moving bases 101, two mounting arms 102, a top plate 103, a top moving guide rail group, a loading plate 104, a material conveying unit, a bottom moving guide rail group, a sliding seat 105, a mounting member, and a 3D printing head 106. Predetermined paths are provided on both sides of the bridge deck to be constructed, and the moving base 101 is provided at each predetermined path. The mounting arm 102 is provided on the upper surface of each moving base 101, and the top plate 103 is provided between the tops of the two mounting arms 102;

[0033] The top moving guide rail group is provided on the upper surface of the top plate 103. The loading plate 104 is slidably provided on the top moving guide rail group. The material conveying unit is provided on the loading plate 104. The bottom moving guide rail group is provided at the bottom of the top plate 103. The sliding seat 105 is slidably provided on the bottom moving guide rail group. One end of the mounting member is connected to the sliding seat 105, and the 3D printing head 106 is provided at the other end of the mounting member. The output end of the material conveying unit is communicated with the 3D printing head 106.

[0034] In this embodiment, the moving platform moves on the moving path. During the movement, the material conveying unit conveys the 3D printing material to the 3D printing head 106, and the 3D printing head 106 sprays the material. During the process of the 3D printing head 106 spraying the material, the position of the 3D printing head 106 is adjusted by the cooperation of the top moving guide rail group and the bottom moving guide rail group to complete the printing of the bridge deck structure. With the above structure, the construction of the bridge deck structure can be completed automatically at the construction site. Compared with the traditional prefabrication and assembly method and the in-situ casting method, it has the advantages of shorter on-site construction time and lower labor cost.

[0035] Furthermore, the top moving guide rail group includes a top guide rail 107, a first threaded rod 108, a first ball screw nut pair 109, and a first servo motor 110. The top guide rail 107 is installed on the upper surface of the top plate 103. The first threaded rod 108 is rotatably arranged on the top guide rail 107. The first ball screw nut pair 109 is arranged on the first threaded rod 108. The first ball screw nut pair 109 is connected to the carrier plate 104. One end of the first threaded rod 108 extending outside the top guide rail 107 is provided with a first connector 111. One end of the top plate 103 close to the first connector 111 is provided with the first servo motor 110. The output end of the first servo motor 110 is connected to the first connector 111 through a first coupling 112.

[0036] In this embodiment, when the first servo motor 110 is started, it drives the first threaded rod 108 to rotate. Since the first ball screw nut pair 109 is connected to the carrier plate 104, the position adjustment of the material conveying unit is completed.

[0037] Furthermore, the bottom moving guide rail group includes a bottom guide rail 113, a second threaded rod 114, a second ball screw nut pair 115, and a second servo motor 116. The bottom guide rail 113 is installed at the bottom of the top plate 103. The second threaded rod 114 is rotatably arranged on the bottom guide rail 113. The second ball screw nut pair 115 is arranged on the second threaded rod 114. The second ball screw nut pair 115 is connected to the sliding seat 105. One end of the second threaded rod 114 extending outside the bottom guide rail 113 is provided with a second connector 117. One end of the top plate 103 close to the second connector 117 is provided with the second servo motor 116. The output end of the second servo motor 116 is connected to the second connector 117 through a second coupling 118.

[0038] In this embodiment, when the second servo motor 116 is started, it drives the second threaded rod 114 to rotate. Since the second ball screw nut pair 115 is connected to the sliding seat 105, the position adjustment of the 3D printing head 106 is completed through the mounting member.

[0039] Furthermore, the mounting member includes a connecting rod 119, a fixing block 120, and a mounting ring 121. One end of the connecting rod 119 is fixedly provided with the fixing block 120. The other end of the connecting rod 119 is fixedly provided with the mounting ring 121. The mounting ring 121 is arranged outside the 3D printing head 106. The fixing block 120 is detachably connected to the sliding seat 105.

[0040] In this embodiment, both the mounting ring 121 and the fixing block 120 are fixedly connected to the connecting rod 119. When preparing the mounting member, an integral molding technology is used, making the structure more firm.

[0041] Furthermore, the material conveying unit includes a placement rack 122, a delivery pump 123, and a storage barrel 124. The placement rack 122 is arranged on one side of the carrier plate 104. The storage barrel 124 is arranged on the placement rack 122. The delivery pump 123 is installed on the upper surface of the carrier plate 104. The input end of the delivery pump 123 is located inside the storage barrel 124, and the output end of the delivery pump 123 is connected to the 3D printing head 106 through a pipeline.

[0042] In this embodiment, the delivery pump 123 is started to convey the material in the storage barrel 124 into the 3D printing head 106.

[0043] Furthermore, the large-span steel bridge deck 3D integrated printing device further includes an auxiliary support member. A rolling groove 125 is arranged on one side of the top plate 103 close to the placement rack 122. The auxiliary support member is arranged on one side of the placement rack 122 close to the rolling groove 125. One end of the auxiliary support member is connected to the placement rack 122, and the other end of the auxiliary support member is provided with a roller 126, and the roller 126 is located inside the rolling groove 125.

[0044] In this embodiment, through the arrangement of the auxiliary support member, the placement rack 122 is supported auxiliary, making the structure of the placement rack 122 more stable. And through the arrangement of the roller 126, when the position of the placement rack 122 changes, the sliding of the auxiliary support member is smoother.

[0045] Furthermore, the auxiliary support member includes a fixing plate 127 and a support arm 128. One end of the support arm 128 is rotatably provided with the roller 126, and the other end of the support arm 128 is fixedly provided with the fixing plate 127, and the fixing plate 127 is detachably connected to the placement rack 122.

[0046] In this embodiment, through the arrangement of the fixing plate 127, the installation of the auxiliary support member is completed.

[0047] Please refer to Figure 8 , the present invention also provides a large-span steel bridge deck 3D integrated printing method, which is applied to the large-span steel bridge deck 3D integrated printing device as described above, and includes the following steps:

[0048] S1: Transport the mobile platform on the corresponding moving path, and set the parameters of the mobile platform, the 3D printing head 106, the top moving guide rail group and the bottom moving guide rail group;

[0049] S2: The mobile platform moves on the moving path according to the preset moving speed parameter. During the movement, the material conveying unit conveys the 3D printing material to the 3D printing head 106, and the 3D printing head 106 sprays the material;

[0050] S3: During the process of the 3D printing head 106 spraying the material, use the preset parameters of the top moving guide rail group and the bottom moving guide rail group to adjust the position of the 3D printing head 106 to complete the printing of the bridge deck structure;

[0051] S4: After the current bridge deck printing structure is completed, install embedded parts and sensors on it, and then carry out subsequent printing;

[0052] S5: Carry out necessary post-processing operations on the completed bridge deck structure.

[0053] In this embodiment, transport the mobile platform on the corresponding moving path, and set the parameters of the mobile platform, the 3D printing head 106, the top moving guide rail group and the bottom moving guide rail group. The mobile platform moves on the moving path according to the preset moving speed parameter. During the movement, the material conveying unit conveys the 3D printing material to the 3D printing head 106, and the 3D printing head 106 sprays the material. During the process of the 3D printing head 106 spraying the material, use the preset parameters of the top moving guide rail group and the bottom moving guide rail group to adjust the position of the 3D printing head 106 to complete the printing of the bridge deck structure. After the current bridge deck printing structure is completed, install embedded parts and sensors on it, and then carry out subsequent printing. Finally, carry out necessary post-processing operations on the completed bridge deck structure.

[0054] The above-disclosed is only a preferred embodiment of the present invention. Of course, it cannot be used to limit the scope of the rights of the present invention. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A 3D integrated printing device for the deck of a long - span steel bridge, characterized in that, it includes two moving bases, two mounting arms, a top plate, a top moving guide rail group, a load - bearing plate, a material conveying unit, a bottom moving guide rail group, a sliding seat, a mounting piece and a 3D printing head. Predetermined paths are provided on both sides of the bridge deck to be constructed. The moving bases are provided at each predetermined path. The mounting arms are provided on the upper surface of each moving base. The top plate is provided between the tops of the two mounting arms; The top moving guide rail group is provided on the upper surface of the top plate. The load - bearing plate is slidably arranged on the top moving guide rail group. The material conveying unit is provided on the load - bearing plate. The bottom moving guide rail group is provided at the bottom of the top plate. The sliding seat is slidably arranged on the bottom moving guide rail group. One end of the mounting piece is connected to the sliding seat, and the 3D printing head is provided at the other end of the mounting piece. The output end of the material conveying unit is communicated with the 3D printing head.

2. The 3D integrated printing device for the deck of a long - span steel bridge according to claim 1, characterized in that, The top moving guide rail group includes a top guide rail, a first threaded rod, a first ball screw nut pair and a first servo motor. The top guide rail is installed on the upper surface of the top plate. The first threaded rod is rotatably arranged on the top guide rail. The first ball screw nut pair is arranged on the first threaded rod. The first ball screw nut pair is connected to the load - bearing plate. One end of the first threaded rod extending outside the top guide rail is provided with a first connection head. The first servo motor is provided at one end of the top plate close to the first connection head. The output end of the first servo motor is connected to the first connection head through a first coupling.

3. The 3D integrated printing device for the deck of a long - span steel bridge according to claim 2, characterized in that, The bottom moving guide rail group includes a bottom guide rail, a second threaded rod, a second ball screw nut pair and a second servo motor. The bottom guide rail is installed at the bottom of the top plate. The second threaded rod is rotatably arranged on the bottom guide rail. The second ball screw nut pair is arranged on the second threaded rod. The second ball screw nut pair is connected to the sliding seat. One end of the second threaded rod extending outside the bottom guide rail is provided with a second connection head. The second servo motor is provided at one end of the top plate close to the second connection head. The output end of the second servo motor is connected to the second connection head through a second coupling.

4. The 3D integrated printing device for the deck of a long - span steel bridge according to claim 3, characterized in that, The material conveying unit includes a placement rack, a delivery pump and a storage barrel. The placement rack is provided on one side of the load - bearing plate. The storage barrel is provided on the placement rack. The delivery pump is installed on the upper surface of the load - bearing plate. The input end of the delivery pump is located inside the storage barrel. The output end of the delivery pump is connected to the 3D printing head through a pipeline.

5. The 3D integrated printing device for the deck of a long - span steel bridge according to claim 4, characterized in that, The 3D integrated printing device for the deck of a long-span steel bridge further includes an auxiliary support. A rolling groove is provided on one side of the top plate close to the placement rack, and the auxiliary support is provided on one side of the placement rack close to the rolling groove. One end of the auxiliary support is connected to the placement rack, and a roller is provided at the other end of the auxiliary support. The roller is located inside the rolling groove.

6. The 3D integrated printing device for the deck of a long-span steel bridge according to claim 5, wherein the auxiliary support includes a fixing plate and a support arm. A roller is rotatably provided at one end of the support arm, and the fixing plate is fixedly provided at the other end of the support arm. The fixing plate is detachably connected to the placement rack.

7. A 3D integrated printing method for the deck of a long-span steel bridge, applied to the 3D integrated printing equipment for the deck of a long-span steel bridge as described in claim 1, characterized in that, It includes the following steps: Transport the mobile platform on the corresponding moving path, and set the parameters of the mobile platform, the 3D printing head, the top moving guide rail group and the bottom moving guide rail group; The mobile platform moves on the moving path according to the preset moving speed parameter. During the movement, the material conveying unit conveys the 3D printing material to the 3D printing head, and the 3D printing head sprays the material; During the process of the 3D printing head spraying the material, use the preset parameters of the top moving guide rail group and the bottom moving guide rail group to adjust the position of the 3D printing head to complete the printing of the deck structure; After the current deck printing structure is completed, install embedded parts and sensors on it, and then perform subsequent printing; Perform necessary post-treatment operations on the completed deck structure.

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