Tool for assembling portal crane by adopting forklift and method for assembling portal crane

Abstract

The invention relates to assembling equipment, in particular to a tool for assembling a portal crane by adopting a forklift and a method for assembling the portal crane, the tool for assembling the portal crane by adopting the forklift comprises a first bracket, a second bracket, a first bracket, a second bracket and a chassis, the chassis is a flat plate, the chassis is horizontally arranged, and the first bracket and the second bracket are arranged on the chassis. The bottom of the first bracket and the bottom of the second bracket are both connected to the base plate, the first bracket and the second bracket are both vertically arranged, and the first bracket and the second bracket are located at the two ends of the base plate in the width direction respectively. The first bracket and the second bracket are connected to the top of the first bracket and the top of the second bracket respectively. When the tool is used for assembling the portal crane, the original structure of a factory building does not need to be damaged, a large-tonnage truss crane does not need to be used, and the assembling process is safer and more efficient.

Description

Technical Field

[0001] The invention relates to an assembly device, in particular to a tool for assembling a gantry crane using a forklift and a method for assembling the gantry crane. Background Art

[0002] When installing gantry cranes and other related lifting equipment inside factories and warehouses, it is usually necessary to use truck cranes or larger tonnage truss cranes already available inside the factory for assembly and installation. However, when the entrance size and internal dimensions of the factory or warehouse are small, the truck crane cannot enter, and there is no required truss crane inside for assembly work. It is usually necessary to make lifting points on the top of the factory or high on the wall, and assemble with hand winches. This method not only destroys the factory structure and affects the operating efficiency, but also poses certain safety risks. Therefore, it is necessary to propose a solution for assembling gantry cranes in the internal space of factories and warehouses. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a tooling and method for assembling a gantry crane using a forklift, which does not require destroying the original structure of a factory building and has a safer and more efficient assembly process.

[0004] In order to solve the above technical problems, this application provides the following technical solutions:

[0005] The present invention discloses a tooling for assembling a gantry crane by using a forklift, comprising a first bracket, a second bracket, a first bracket seat, a second bracket seat, and a chassis, wherein the chassis is a flat plate, the chassis is horizontally arranged, the bottom of the first bracket and the bottom of the second bracket are both connected to the chassis, the first bracket and the second bracket are both vertically arranged, the first bracket and the second bracket are respectively located at two ends of the chassis along the width direction, and the first bracket seat and the second bracket seat are respectively connected to the top of the first bracket and the second bracket.

[0006] Furthermore, the first bracket and the second bracket have the same structure, wherein the first bracket comprises a bottom plate and two side plates, and a groove is formed between the bottom plate and the two side plates.

[0007] Furthermore, a protective layer is provided on the first bracket, and the protective layer is connected to the bottom plate and the two side plates.

[0008] Furthermore, a lifting ring is respectively provided on the front end surface and the rear end surface of the first bracket, and the lifting ring is used to cooperate with the binding belt to fix the main beam of the gantry crane.

[0009] Furthermore, a forklift plug-in interface is provided on the chassis, and a forklift plugs the chassis through the forklift plug-in interface.

[0010] Furthermore, it also includes a plurality of universal wheels, which are connected to the chassis and are suitable for being supported on the ground or folded up.

[0011] The method for assembling a gantry crane using the above-mentioned tooling for assembling a gantry crane using a forklift comprises the following steps:

[0012] Step 1: Arrange the components of the gantry crane according to its actual structure, and place auxiliary tools for assembling the gantry crane on the chassis;

[0013] Step 2: Use a forklift to lift the main beam, and hinge the main beam with the hinge mechanisms of the first leg, the second leg, the third leg, and the fourth leg through bolts and nuts;

[0014] Step 3: Place the main beam on the first bracket and the second bracket by a forklift, and complete the installation of the electric hoist by auxiliary tools;

[0015] Step 4: Remove the auxiliary tools from the chassis, plug the forklift into the chassis, lift the tooling for assembling the gantry crane by the forklift until the height of the four legs of the gantry crane from the ground exceeds the height of the ground beam assembly, connect and fix the four legs of the gantry crane to the ground beam, and connect and fix the main beam to the four legs, thereby completing the assembly of the gantry crane.

[0016] Furthermore, in the step one, when placing the components of the gantry crane, the second leg and the third leg are placed on the same side of the main beam, the second leg and the third leg are respectively close to the two ends of the main beam along the length direction, the positions of the first leg and the fourth leg are symmetrical to the positions of the second leg and the third leg relative to the main beam, and the two ground beam assemblies are placed according to the actual spacing.

[0017] Furthermore, the auxiliary tools include a lifting trolley and an electric hoist supporting tooling.

[0018] Furthermore, in the step four, the electric hoist is locked and fixed to the main beam by a binding belt, and after the main beam is locked and fixed to the first bracket and the second bracket, the tooling for assembling the gantry crane by a forklift is lifted.

[0019] Compared with the prior art, the tooling for assembling a gantry crane using a forklift in the present invention has at least the following beneficial effects:

[0020] The present invention discloses a tool for assembling a gantry crane by using a forklift. The tool comprises a first bracket, a second bracket, a first bracket seat, a second bracket seat and a chassis. The first bracket seat and the second bracket seat are used to hold up the main beam of the gantry crane. The chassis is used to place auxiliary assembly tools. When the entrance size and internal size of a factory building or a warehouse are small, the gantry cranes in bulk inside the factory building can be assembled and assembled by using a forklift in combination with the tool for assembling a gantry crane. This can be done without using a truck crane or other large-tonnage truss cranes, thereby avoiding damage to the internal structure of the factory building or the warehouse, saving manpower and improving operation efficiency and safety.

[0021] The following is a further description of the tooling for assembling a gantry crane using a forklift and the method for assembling a gantry crane of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a tooling for assembling a gantry crane using a forklift according to the present invention;

[0023] Figure 2 It is a structural diagram of a gantry crane;

[0024] Figure 3 for Figure 2 A partial enlarged view of

[0025] Figure 4 A schematic diagram of the arrangement of the components before assembling a gantry crane using a forklift to assemble the gantry crane according to the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the front gantry crane;

[0027] Figure 6 A schematic diagram of a first process of assembling a gantry crane using a tooling for assembling a gantry crane using a forklift according to the present invention;

[0028] Figure 7 It is a schematic diagram of the second process of assembling a gantry crane by using the tooling for assembling the gantry crane by using a forklift according to the present invention. DETAILED DESCRIPTION

[0029] like Figure 1As shown, the present invention is a tooling for assembling a gantry crane by a forklift, comprising a first bracket 11, a second bracket 12, a first bracket 13, a second bracket 14, and a chassis 15. The chassis 15 is a flat plate, which is horizontally arranged. The chassis 15 is used to place assembly auxiliary tools. The bottom of the first bracket 11 and the bottom of the second bracket 12 are both connected to the chassis 15. The first bracket 11 and the second bracket 12 are both vertically arranged. The first bracket 11 and the second bracket 12 are respectively located at both ends of the chassis 15 along the width direction. The first bracket 13 and the second bracket 14 are respectively connected to the top of the first bracket 11 and the second bracket 12. The first bracket 13 and the second bracket 14 are used to hold up the main beam of the gantry crane. Specifically, the chassis 15, the first bracket 11, and the second bracket 12 are all welded by rectangular tubes and steel plates, the first bracket 11, the second bracket 12 are welded to the chassis 15, the first bracket 13 is welded to the first bracket 11, and the second bracket 14 is welded to the second bracket 12. The present invention is a tooling for assembling a gantry crane using a forklift, which includes the first bracket 11, the second bracket 12, the first bracket 13, the second bracket 14, and the chassis 15. The first bracket 13 and the second bracket 14 are used to hold up the main beam of the gantry crane, and the chassis 15 is used to place assembly auxiliary tools. When the entrance size and internal size of the factory building or warehouse are small, the bulk gantry cranes inside the factory building can be assembled and assembled by a forklift in combination with the tooling of the present invention, without using a truck crane or other large-tonnage truss crane, thereby avoiding damage to the internal structure of the factory building or warehouse, saving manpower, and improving operation efficiency and safety.

[0030] Optionally, the first bracket 13 and the second bracket 14 have the same structure, wherein the first bracket 13 includes a bottom plate and two side plates, and a groove is formed between the bottom plate and the two side plates to prevent the main beam of the gantry crane from slipping out of the first bracket 13 and the second bracket 14 when supporting the main beam of the gantry crane, making the assembly process safer.

[0031] Optionally, a protective layer 131 is provided on the first bracket 13, and the protective layer 131 is connected to the bottom plate and the two side plates to prevent the first bracket 13 and the second bracket 14 from being scratched and extend the service life. Specifically, the protective layer is made of rubber and is pasted on the bottom plate and the two side plates.

[0032] Optionally, a lifting ring 132 is respectively provided on the front end surface and the rear end surface of the first bracket 13, and the lifting ring 132 is used to cooperate with the binding belt to fix the main beam of the gantry crane.

[0033] Optionally, a forklift plug-in interface 151 is provided on the chassis 15 , and a forklift plugs the chassis 15 through the forklift plug-in interface 151 , thereby preventing slippage and making the assembly process safer.

[0034] Optionally, it also includes a plurality of universal wheels 16, which are connected to the chassis 15 and are suitable for being supported on the ground or being folded up. In the present embodiment, four universal wheels 16 are provided, and the four universal wheels 16 are respectively located at the four corners of the chassis 15. Through the universal wheels 16, the tooling can be moved in any direction by manpower, and the folding of the universal wheels 16 can be achieved by rotating the square head above the screw of the universal wheel 16, and each universal wheel 16 has a braking function. Specifically, a nut is respectively provided at the four corners of the chassis 15, and a screw is connected to the top of the universal wheel 16, and the screw is screwed into the nut and matched with the nut, and a square head is provided on the top of the screw, and the screw can be controlled to rise by rotating the square head, so that the bottom surface of the chassis 15 contacts the ground, and the universal wheel 16 is folded up.

[0035] like Figure 2 As shown, the gantry crane is composed of a main beam 201, an electric hoist 202, a first leg 203, a second leg 204, a third leg 205, a fourth leg 206 and two ground beam assemblies 207. The joint surfaces of the four legs and the main beam 201 and the joint surfaces of the four legs and the two ground beam assemblies are fixed by high-strength bolts.

[0036] like Figure 3 As shown, a hinge structure is provided between the main beam 201 of the gantry crane and the four legs, and bolts 208 and nuts 209 are installed between the two hinge structures for hinge connection. With this structure, the four legs are hinged to the main beam 201 on the ground. After the main beam 201 is lifted to a certain height, the four legs are automatically closed to the assembly position below the main beam 201 due to gravity, and the joint surface between the upper surface of each leg and the bottom surface of the main beam 201 can be automatically fitted, and the bolts of the joint surface can be directly tightened and fixed.

[0037] The method for assembling a gantry crane by using the tooling for assembling a gantry crane by using a forklift of the present invention comprises the following steps:

[0038] Step 1: If Figure 4 As shown, firstly, the components of the gantry crane and related auxiliary tools are moved into the factory, and the components are placed according to the actual structure of the gantry crane. The second leg 204 and the third leg 205 are placed on one side of the main beam 201, and the second leg 204 and the third leg 205 are respectively close to the two ends of the main beam 201 along the length direction. The positions of the first leg 203 and the fourth leg 206 are symmetrical with the positions of the second leg 204 and the third leg 205 relative to the main beam 201. The two ground beam assemblies 207 are placed according to the actual spacing, and the lifting trolley 4, the electric hoist support tooling 5 and the electric hoist 202 are placed on the chassis 15 of the tooling 1 for assembling the gantry crane using a forklift of the present invention;

[0039] Step 2: As attached Figure 5As shown, a forklift 3 is used to lift the main beam 201, and bolts 208 and nuts 209 are used to hinge the main beam 201 with the hinge mechanisms of the first leg 203, the second leg 204, the third leg 205, and the fourth leg 206;

[0040] Step 3: As attached Figure 6 As shown, the main beam 201 is placed on the first bracket 13 and the second bracket 14 by a forklift 3, so that the center of the main beam 201 is aligned with the center of the tooling of the present invention, and the electric hoist support tooling 5 is lifted by a lifting trolley 4, and the height is adjusted, and the wheel spacing of the electric hoist 202 is adjusted, and the total clearance between the two wheel rims and the rail flange is controlled to be 3-5mm, and the installation of the electric hoist is completed;

[0041] Step 4: As attached Figure 7 As shown, after the electric hoist 202 is installed, the lifting trolley 4 and the electric hoist supporting tooling 5 are removed from the chassis 15, and the center of gravity of the electric hoist 202 is adjusted to the center of the main beam 201. The electric hoist 202 and the main beam 201 are locked and fixed by two binding belts 6, and the main beam 201 and the lifting rings on the first bracket 13 and the second bracket 14 are locked and fixed by another two binding belts 6. The forklift 3 is plugged into the chassis 15 so that the vertical surface of the fork is close to the edge of the chassis 15, and the tooling 1 for assembling the gantry crane by the forklift is lifted until the height of the four legs of the gantry crane 2 from the ground exceeds the height of the ground beam assembly 207, and the joint surfaces of the four legs of the gantry crane 2 and the ground beam 207 are fixed by bolts, and the joint surfaces of the main beam 201 and the four legs are fixed by bolts. The binding belts 6 are removed, and the assembly of the main structure of the gantry crane 2 is completed.

[0042] The forklift 3 is a 3-ton forklift with a width and height of about 1200mm*2100mm. The gantry crane 2 weighs about 2.7 tons and is 4m high. The tooling 1 is 1.5m high and the forklift needs to be lifted by about 2.5m. The load curve requirements of the 3-ton forklift are met, and the gantry crane assembly operation can be carried out in a warehouse or factory building with an entrance size of 1400mm*2300mm and an internal height of 4.2m.

[0043] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A tool for assembling a gantry crane using a forklift, characterized in that: The invention comprises a first bracket (11), a second bracket (12), a first bracket seat (13), a second bracket seat (14), and a chassis (15); the chassis (15) is a flat plate; the chassis (15) is arranged horizontally; the bottom of the first bracket (11) and the bottom of the second bracket (12) are both connected to the chassis (15); the first bracket (11) and the second bracket (12) are both arranged vertically; the first bracket (11) and the second bracket (12) are respectively located at two ends of the chassis (15) in the width direction; the first bracket seat (13) and the second bracket seat (14) are respectively connected to the top of the first bracket (11) and the second bracket (12).

2. The tooling for assembling a gantry crane using a forklift according to claim 1, characterized in that: The first bracket (13) and the second bracket (14) have the same structure, wherein the first bracket (13) comprises a bottom plate and two side plates, and a groove is formed between the bottom plate and the two side plates.

3. The tooling for assembling a gantry crane using a forklift according to claim 2, characterized in that: A protective layer (131) is provided on the first bracket (13), and the protective layer (131) is connected to the bottom plate and the two side plates.

4. The tooling for assembling a gantry crane using a forklift according to claim 2, characterized in that: A lifting ring (132) is respectively arranged on the front end surface and the rear end surface of the first bracket (13), and the lifting ring (132) is used to cooperate with the binding belt to fix the main beam of the gantry crane.

5. The tooling for assembling a gantry crane using a forklift according to claim 1, characterized in that: The chassis (15) is provided with a forklift plug-in interface (151), and a forklift plugs into the chassis (15) through the forklift plug-in interface (151).

6. The tooling for assembling a gantry crane using a forklift according to claim 1, characterized in that: It also comprises a plurality of universal wheels (16), wherein the universal wheels (16) are connected to the chassis (15), and the universal wheels (16) are suitable for being supported on the ground or being folded up.

7. A method for assembling a gantry crane using the tooling for assembling a gantry crane using a forklift as described in any one of claims 1 to 6, comprising the following steps: Step 1: Arrange the components of the gantry crane (2) according to the actual structure of the gantry crane (2), and place auxiliary tools for assembling the gantry crane (2) on the chassis (15); Step 2: Use a forklift (3) to lift the main beam (201), and hinge the main beam (201) with the hinge mechanisms of the first leg (203), the second leg (204), the third leg (205), and the fourth leg (206) through bolts (208) and nuts (209); Step 3: placing the main beam (201) on the first bracket (13) and the second bracket (14) by a forklift (3), and completing the installation of the electric hoist (202) by auxiliary tools; Step 4: Remove the auxiliary tool from the chassis (15), plug the forklift (3) into the chassis (15), lift the tooling (1) for assembling the gantry crane using the forklift until the height of the four legs of the gantry crane (2) from the ground exceeds the height of the ground beam assembly (207), connect and fix the four legs of the gantry crane (2) to the ground beam (207), and connect and fix the main beam (201) to the four legs, thereby completing the assembly of the gantry crane (2).

8. The method for assembling a gantry crane according to claim 7, characterized in that: In the step 1, when placing the components of the gantry crane (2), the second leg (204) and the third leg (205) are placed on the same side of the main beam (201), the second leg (204) and the third leg (205) are respectively close to the two ends of the main beam (201) along the length direction, the positions of the first leg (203) and the fourth leg (206) are symmetrically arranged with respect to the positions of the second leg (204) and the third leg (205) relative to the main beam (201), and the two ground beam assemblies (207) are placed according to the actual spacing.

9. The method for assembling a gantry crane according to claim 7, characterized in that: The auxiliary tool comprises a lifting trolley (4) and an electric hoist supporting tool (5).

10. The method for assembling a gantry crane according to claim 7, characterized in that: In the step 4, the electric hoist (202) is locked and fixed to the main beam (201) by means of a binding belt (6), and after the main beam (201) is locked and fixed to the first bracket (13) and the second bracket (14), the tooling (1) for assembling the gantry crane using a forklift is lifted.

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