Ladder rack transfer device and method

Abstract

The present invention discloses a ladder frame transfer device and method, comprising a pipe support, a gantry, a movable support baffle, a movable pipe support, a movable pipe support limit block, a movable box beam support, a box beam fixed support, a folding arm fixed pin, a fixed pin baffle, and a fixed pin support; the pipe support is arranged at one end of the upper surface of the gantry, and the box beam fixed support is arranged at the other end of the upper surface of the gantry; the movable pipe support and the movable box beam support are arranged on the upper surface of the gantry via the folding arm fixed pin, with the movable pipe support close to one side of the pipe support and the movable box beam support close to one side of the box beam fixed support; the movable support baffle is arranged on the length side of the gantry; the movable pipe support limit block is arranged on the upper surface of the gantry to limit the movable pipe support and the movable box beam support; the fixed pin support is arranged on the gantry; and the fixed pin baffle is arranged on the side of the gantry. Based on the structural characteristics of the ladder frame, the present invention can effectively solve the defects of the existing technology.

Description

Technical Field

[0001] The present invention relates to a manufacturing and transporting technology for a ladder frame, and more particularly to a ladder frame transporting device and method. Background Art

[0002] The ladder frame is a critical load-bearing structure in a quayside container crane (STS). It carries the pitching and winding pulley assembly and the girder anchoring device. It has two main functions: 1) It secures the raised front girder, preventing collisions between the quayside crane and the vessel during docking and departure; and 2) It is rigidly welded to the tie rod system and door frame system, enhancing the stability of the quayside crane's metal structure.

[0003] After the ladder frame is painted, it needs to be transported to the assembly location and flipped 180° using large lifting equipment (gantry crane or floating crane) to complete the installation of accessories such as the ladder platform and pulleys. Ladder frames are typically less than 60 tons, so the installation after flipping does not require large lifting equipment; a small truck crane is sufficient. Because existing transfer tooling cannot move the flipped ladder frame, the installation of accessories still requires valuable lifting area on the crane. This inability to shift the ladder frame can lead to irrational resource allocation at the terminal assembly site and hinders the full utilization of the large crane's lifting capacity. Summary of the Invention

[0004] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a ladder rack transfer device and method. A ladder rack transfer device and method are designed according to the structural characteristics of the ladder rack, which can effectively solve the defects in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] In one aspect, a ladder frame transfer device includes a pipe support, a gantry, a movable support baffle, a movable pipe support, a movable pipe support limit block, a movable box beam support, a box beam fixed support, a folding arm fixed pin, a fixed pin baffle, and a fixed pin support;

[0007] The support pipe support is provided at one end of the upper surface of the gantry, and the box beam fixed support is provided at the other end of the upper surface of the gantry;

[0008] The movable support pipe support and the movable box beam support are arranged on the upper surface of the gantry through the folding arm fixing pin, and the movable support pipe support is close to one side of the support pipe support, and the movable box beam support is close to one side of the box beam fixed support;

[0009] The movable support baffle is arranged on the length side of the gantry;

[0010] The movable support pipe limiting block is provided on the upper surface of the gantry to limit the movable support pipe support and the movable box beam support;

[0011] The fixing pin support is provided on the gantry to support the folding arm fixing pin;

[0012] The fixing pin baffle is arranged on the side of the gantry and is used for storing the spare folding arm fixing pin.

[0013] Preferably, the pipe support includes a first web and a first upper wing plate;

[0014] The first webs have two pieces, which are symmetrically arranged and vertically mounted on one end of the upper surface of the gantry;

[0015] The first upper wing plate is horizontally arranged on the top of the first web, and the first upper wing plate is bent with the opening facing upward.

[0016] Preferably, the gantry comprises a main beam and supporting legs;

[0017] The main beam is a box beam and is arranged horizontally;

[0018] The supporting legs are box beams, specifically two of them, symmetrically arranged at the end positions of the lower surface of the main beam.

[0019] Preferably, the movable pipe support comprises a second web, a second upper wing plate and a first fixing pin positioning plate;

[0020] The second webs have two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry;

[0021] The second upper wing plate is horizontally arranged on the top of the second web, and the second upper wing plate is bent with the opening facing upward;

[0022] The first fixing pin positioning plate is vertically connected between the two second webs. The lower end of the first fixing pin positioning plate is turned outward, and a through hole for inserting the folding arm fixing pin is provided on the turned edge.

[0023] Preferably, the movable box beam support includes a third web, a third upper wing plate and a second fixing pin positioning plate;

[0024] The third webs have two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry, and the outer side of each of the third webs is provided with a first web reinforcement angle steel;

[0025] The third upper wing plates have two pieces and are symmetrically arranged on the top of the third web in a V shape;

[0026] The second fixing pin positioning plate is vertically connected between the two third webs. The lower end of the second fixing pin positioning plate is turned outward, and a through hole for inserting the folding arm fixing pin is provided on the turned edge.

[0027] Preferably, the box girder fixed support includes a fourth web and a fourth upper wing plate;

[0028] The fourth webs have two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry, and the outer side surface of each of the fourth webs is provided with a second web reinforcement angle steel;

[0029] The fourth upper wing plates include two pieces, which are symmetrically arranged on the top of the fourth web in a V shape.

[0030] Preferably, the folding arm fixing pin includes an upper pin body and a lower pin body;

[0031] The lower end of the upper pin body is connected to the upper end of the lower pin body through a pin shaft.

[0032] Preferably, the fixing pin support includes a base plate and a fixing sleeve provided on the base plate.

[0033] In another aspect, a ladder rack transfer method is provided, wherein the ladder rack transfer device is used to perform the following steps:

[0034] S1. Determine the height of the ladder frame to be transferred and the ladder frame transfer device;

[0035] S2. Using a forklift, adjust the position of the movable support pipe support on the gantry and the height of the gantry;

[0036] S3, using a crane to turn over the ladder frame, and using a forklift to install a pad at the lower end of the support pipe on the ladder frame;

[0037] S4. A forklift cooperates with a crane to install a pad at the head platform position on the ladder frame. After the ladder frame is stably landed, the crane releases the wire rope;

[0038] S5. The ladder frame transfer device is then transferred by a forklift so that the notches on the fixed box beam support or the movable box beam support are aligned with the node plates on the ladder frame, and the support pipe supports and the movable support pipe supports are aligned with the support pipes on the ladder frame;

[0039] S6. Using a hydraulic flatbed truck to carry the ladder frame transfer device, slowly lifting the gantry frame so that the ladder frame is off the ground;

[0040] S7, using a hydraulic flatbed truck to transport the ladder frame to the sub-assembly station for sub-assembly operation;

[0041] S8. The hydraulic flatbed truck slowly descends, and the forklift cooperates to install the pads;

[0042] S9. The ladder frame transfer device is lowered along with the hydraulic flatbed truck until the ladder frame is detached, and is evacuated from the assembly station along with the hydraulic flatbed truck.

[0043] The present invention provides a ladder frame transfer device and method for transfer operations after the ladder frame is assembled. It is easy to use, simple to operate, and easy to move. According to the structural characteristics of the ladder frame, it can effectively solve the problems in the prior art that the installation of accessories after the ladder frame is turned over still needs to occupy the valuable lifting area of the lifting equipment, the ladder frame easily causes unreasonable resource allocation of the terminal assembly site, and is not conducive to the lifting capacity of large-scale lifting equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic structural diagram of the ladder frame transfer device of the present invention;

[0045] Figure 2 yes Figure 1 Schematic diagram of the structure of the center support tube support;

[0046] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle gantry;

[0047] Figure 4 yes Figure 1 Installation diagram of the movable support baffle;

[0048] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle movable support pipe support;

[0049] Figure 6 yes Figure 1 Installation diagram of the movable support pipe limit block;

[0050] Figure 7 yes Figure 1 Structural diagram of the middle movable box girder support;

[0051] Figure 8 yes Figure 1 Structural diagram of the fixed support of the middle box girder;

[0052] Figure 9 yes Figure 1 Schematic diagram of the structure of the fixing pin of the middle folding arm;

[0053] Figure 10 yes Figure 1 Installation diagram of the middle fixed pin baffle;

[0054] Figure 11 yes Figure 1 Schematic diagram of the structure of the middle fixed pin support;

[0055] Figure 12 Schematic diagram of step S1 in the ladder rack transfer method of the present invention;

[0056] Figure 13 Schematic diagram of step S2 in the ladder rack transfer method of the present invention;

[0057] Figure 14 is a schematic diagram of step S3 in the ladder rack transfer method of the present invention;

[0058] Figure 15 is a schematic diagram of step S4 in the ladder rack transfer method of the present invention;

[0059] Figure 16 is a schematic diagram of step S5 in the ladder rack transfer method of the present invention;

[0060] Figure 17 yes Figure 16 A magnified schematic diagram of the I position in the middle;

[0061] Figure 18 is a schematic diagram of step S6 in the ladder rack transfer method of the present invention;

[0062] Figure 19 is a schematic diagram of step S7 in the ladder rack transfer method of the present invention;

[0063] Figure 20 is a schematic diagram of step S8 in the ladder rack transfer method of the present invention;

[0064] Figure 21 Schematic diagram of step S9 in the ladder rack transfer method of the present invention. DETAILED DESCRIPTION

[0065] In order to better understand the above technical solutions of the present invention, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.

[0066] Combine Figure 1 As shown, a ladder frame transfer device provided by the present invention includes a support pipe support 1, a gantry 2, a movable support baffle 3, a movable support pipe support 4, a movable support pipe limit block 5, a movable box beam support 6, a box beam fixed support 7, a folding arm fixing pin 8, a fixing pin baffle 9 and a fixed pin support 10.

[0067] The pipe support 1 is provided at one end of the upper surface of the gantry 2 , and the box girder fixed support 7 is provided at the other end of the upper surface of the gantry 2 .

[0068] The movable support pipe support 4 and the movable box beam support 6 are mounted on the upper surface of the gantry 2 via folding arm fixing pins 8 and are movable along the length of the gantry 2 (fixed by the folding arm fixing pins 8). The movable support pipe support 4 is located near the support pipe support 1, and the movable box beam support 6 is located near the box beam fixed support 7. The movable support pipe support 4 and the movable box beam support 6 are adjusted on the gantry 2 according to the length of the support pipe 400.

[0069] The movable support baffles 3 are arranged on both sides of the length of the gantry 2.

[0070] The movable support pipe limiting block 5 is provided on the upper surface of the gantry 2 to limit the moving distance of the movable support pipe support 4 and the movable box beam support 6.

[0071] The fixing pin support 10 is provided on the gantry 2 to support the folding arm fixing pin 8 .

[0072] The fixing pin baffle 9 is arranged on the side of the gantry 2 to store the spare folding arm fixing pin 8.

[0073] Combine Figure 2 As shown, the support tube support 1 is used to support the support tube 400 on the ladder frame 100 , and includes a first web 11 and a first upper wing plate 12 .

[0074] The first webs 11 consist of two pieces, which are symmetrically arranged and vertically welded to one end of the upper surface of the gantry 2 .

[0075] The first upper wing plate 12 is horizontally welded to the top of the two first webs 11 , and the first upper wing plate 12 is bent, with its opening facing upwards for supporting the support pipe 400 on the ladder frame 100 .

[0076] Combine Figure 3 As shown, the gantry 2 is used to support the weight of the ladder frame 100 and provide a lifting platform for the hydraulic flatbed truck 500, including a main beam 21 and support legs 22.

[0077] The main beam 21 is a box beam and is arranged horizontally.

[0078] The supporting legs 22 are box beams, specifically two of them, symmetrically arranged at the end positions of the lower surface of the main beam 21, and have the function of adjusting the height.

[0079] Combine Figure 4 As shown, the movable support baffle 3 is used to constrain the displacement direction of the movable support pipe support 4 and the movable box beam support 6 to prevent the movable support pipe support 4 and the movable box beam support 6 from slipping. The movable support baffle 3 is made of flat steel and welded to both sides of the upper wing plate of the gantry 2.

[0080] Combine Figure 5As shown, the movable support tube support 4 is used to adjust the height of the support tube 400 on the ladder frame 100 from the ground, and is suitable for ladder frames with long support tubes. It includes a second web 41 , a second upper wing plate 42 and a first fixing pin positioning plate 43 .

[0081] The second webs 41 consist of two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry 2 .

[0082] The second upper wing plate 42 is horizontally welded to the top of the two second webs 41 , and the second upper wing plate 42 is bent with its opening facing upwards for supporting the support pipe 400 on the ladder frame 100 .

[0083] The first fixing pin positioning plate 42 is vertically welded between the two second webs 41 . The lower end of the first fixing pin positioning plate 43 is turned outward, and a through hole 44 for inserting the folding arm fixing pin 8 is provided on the turned edge.

[0084] Combine Figure 6 As shown, the movable support pipe limit block 5 is made of steel plate by CNC cutting and welded to the upper surface of the gantry 2.

[0085] Combine Figure 7 As shown, the movable box beam support 6 is used to adjust the height of the head platform of the ladder frame 100 from the ground, and includes a third web 61 , a third upper wing plate 62 and a second fixing pin positioning plate 63 .

[0086] There are two third webs 61 , which are symmetrically arranged and vertically mounted on the upper surface of the gantry 2 . A plurality of first web reinforcement angle steels 64 are provided on the outer side of any third web 61 .

[0087] The third upper wing plates 61 have two pieces, which are symmetrically welded to the top of the third web 61 in a V shape. Notches are formed on the opposite sides of the two third upper wing plates 61.

[0088] The second fixing pin positioning plate 63 is vertically welded between the two third webs. The lower end of the second fixing pin positioning plate 63 is turned outward, and a through hole 65 for inserting the folding arm fixing pin 8 is provided on the turned edge.

[0089] Combine Figure 8 As shown, the box beam fixing support 7 is used to support the head box beam of the ladder frame 100 , and includes a fourth web 71 and a fourth upper wing plate 72 .

[0090] There are two fourth webs 71 , which are symmetrically arranged and vertically welded to the upper surface of the gantry 2 . A plurality of second web reinforcement angle steels 73 are provided on the outer side of any fourth web 71 .

[0091] The fourth upper wing plates 72 are composed of two pieces, which are symmetrically welded to the top of the fourth web 71 in a V-shape. Notches are formed on the opposite sides of the two fourth upper wing plates 72.

[0092] Combine Figure 9 As shown, the folding arm fixing pin 8 includes an upper pin body 81 and a lower pin body 82. The lower end of the upper pin body 81 is connected to the upper end of the lower pin body 82 through a pin shaft 83, so that the lower pin body 82 can perform a flipping movement around the axis.

[0093] Combine Figure 10 As shown, the fixing pin baffle 9 is used to store the spare folding arm fixing pin 8, and the steel plate is welded to the gantry 2 after CNC cutting.

[0094] Combine Figure 11 As shown, the fixing pin support 10 includes a bottom plate 101 and a fixing sleeve 102 provided on the bottom plate 101. The fixing sleeve 102 is welded to the main beam web of the gantry 2 together with the bottom plate 101 after a water leakage hole is opened on the fixing sleeve 102.

[0095] The present invention also provides a ladder rack transfer method, which uses the ladder rack transfer device of the present invention to perform the following steps:

[0096] S1, determine the height of the ladder frame 100 to be transferred and the ladder frame transfer device 200, such as Figure 12 As shown;

[0097] S2, using a forklift 300 to adjust the position of the movable support pipe 4 on the gantry 2 and the height of the gantry 2, as shown in FIG. Figure 13 As shown;

[0098] S3, using a crane (gantry crane, truck crane, etc.) to turn over the ladder frame 100, and the forklift 300 cooperates with the lower end position of the support pipe 400 on the ladder frame 100 to install a pad, such as Figure 14 As shown;

[0099] S4, the forklift 300 cooperates with the crane to install the pads at the head platform position on the ladder frame 100, and after the ladder frame 100 is firmly on the ground, the crane releases the wire rope. Figure 15 As shown;

[0100] S5, the forklift 300 then transfers the ladder frame transfer device 200, aligning the notch on the box beam fixed support 7 or the notch on the box beam movable support 6 with the node plate on the ladder frame 100, and aligning the support pipe support 1 and the movable support pipe support 4 with the support pipe 400 on the ladder frame 100, as shown in FIG. Figure 16 、 Figure 17 As shown;

[0101] S6, using the hydraulic flatbed truck 500 to carry the ladder frame transfer device 200, slowly lifting the gantry 2 so that the ladder frame 100 is off the ground, Figure 18 As shown;

[0102] S7, then use the hydraulic flatbed truck 500 to transport the ladder frame 100 to the sub-assembly station for sub-assembly operation, such as Figure 19 As shown;

[0103] S8, the hydraulic flatbed truck 500 slowly descends, and the forklift 300 cooperates to install the pads, such as Figure 20 As shown;

[0104] S9, the ladder frame transfer device 200 is lowered with the hydraulic flatbed truck 500 to separate from the ladder frame 100, and is evacuated from the assembly station with the hydraulic flatbed truck 500, as shown in FIG. Figure 21 shown.

[0105] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A ladder frame transfer device, characterized in that: It includes a pipe support, a gantry, a movable support baffle, a movable pipe support, a movable pipe support limit block, a movable box beam support, a box beam fixed support, a folding arm fixed pin, a fixed pin baffle and a fixed pin support; The support pipe support is provided at one end of the upper surface of the gantry, and the box beam fixed support is provided at the other end of the upper surface of the gantry; The movable support pipe support and the movable box beam support are arranged on the upper surface of the gantry through the folding arm fixing pin, and the movable support pipe support is close to one side of the support pipe support, and the movable box beam support is close to one side of the box beam fixed support; The movable support baffle is arranged on the length side of the gantry; The movable support pipe limiting block is provided on the upper surface of the gantry to limit the movable support pipe support and the movable box beam support; The fixing pin support is provided on the gantry to support the folding arm fixing pin; The fixing pin baffle is arranged on the side of the gantry to store the spare folding arm fixing pins. The pipe support includes a first web and a first upper wing plate; The first webs have two pieces, which are symmetrically arranged and vertically mounted on one end of the upper surface of the gantry; The first upper wing plate is horizontally arranged on the top of the first web, and the first upper wing plate is bent and opened upward. The movable pipe support comprises a second web, a second upper wing plate and a first fixing pin positioning plate; The second webs have two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry; The second upper wing plate is horizontally arranged on the top of the second web, and the second upper wing plate is bent with the opening facing upward; The first fixing pin positioning plate is vertically connected between the two second webs. The lower end of the first fixing pin positioning plate is turned outward, and a through hole for inserting the folding arm fixing pin is provided on the turned edge.

2. The ladder rack transfer device according to claim 1, characterized in that: The gantry comprises a main beam and supporting legs; The main beam is a box beam and is arranged horizontally; The supporting legs are box beams, specifically two of them, symmetrically arranged at the end positions of the lower surface of the main beam.

3. The ladder rack transfer device according to claim 1, characterized in that: The movable box beam support includes a third web plate, a third upper wing plate and a second fixing pin positioning plate; The third webs have two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry, and the outer side of each of the third webs is provided with a first web reinforcement angle steel; The third upper wing plates have two pieces and are symmetrically arranged on the top of the third web in a V shape; The second fixing pin positioning plate is vertically connected between the two third webs. The lower end of the second fixing pin positioning plate is turned outward, and a through hole for inserting the folding arm fixing pin is provided on the turned edge.

4. The ladder rack transfer device according to claim 1, characterized in that: The box girder fixed support includes a fourth web and a fourth upper wing plate; The fourth webs have two pieces, which are symmetrically arranged and vertically mounted on the upper surface of the gantry, and the outer side surface of each of the fourth webs is provided with a second web reinforcement angle steel; The fourth upper wing plates include two pieces, which are symmetrically arranged on the top of the fourth web in a V shape.

5. The ladder frame transfer device according to claim 1, characterized in that: The folding arm fixing pin includes an upper pin body and a lower pin body; The lower end of the upper pin body is connected to the upper end of the lower pin body through a pin shaft.

6. The ladder rack transfer device according to claim 1, characterized in that: The fixing pin support includes a base plate and a fixing sleeve arranged on the base plate.

7. A ladder rack transfer method, characterized in that: The ladder rack transfer device according to any one of claims 1 to 6 is used to perform the following steps: S1. Determine the height of the ladder frame to be transferred and the ladder frame transfer device; S2. Using a forklift, adjust the position of the movable support pipe support on the gantry and the height of the gantry; S3, using a crane to turn over the ladder frame, and using a forklift to install a pad at the lower end of the support pipe on the ladder frame; S4. A forklift cooperates with a crane to install a pad at the head platform position on the ladder frame. After the ladder frame is stably landed, the crane releases the wire rope; S5. The ladder frame transfer device is then transferred by a forklift so that the notches on the fixed box beam support or the movable box beam support are aligned with the node plates on the ladder frame, and the support pipe supports and the movable support pipe supports are aligned with the support pipes on the ladder frame; S6. Using a hydraulic flatbed truck to carry the ladder frame transfer device, slowly lifting the gantry frame so that the ladder frame is off the ground; S7, using a hydraulic flatbed truck to transport the ladder frame to the sub-assembly station for sub-assembly operation; S8. The hydraulic flatbed truck slowly descends, and the forklift cooperates to install the pads; S9. The ladder frame transfer device is lowered along with the hydraulic flatbed truck until the ladder frame is detached, and is evacuated from the assembly station along with the hydraulic flatbed truck.

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