Driving replacement method for rotary platform

Abstract

The invention provides a driving replacement method for a rotary platform, which comprises the following specific steps: (1) mounting a carrying tool on a forklift, and inserting prongs of the forklift into connecting grooves of the carrying tool; (2) the carrying tool is driven by the forklift to extend into the tower body through the maintenance opening of the tower body; (3) the angle of the carrying tool is adjusted, so that the position of the carrying tool swings in the rotation driving direction; (4) the carrying tool swings to the rotary drive, and the carrying tool lifts the rotary drive through a lifting belt; (5) the carrying tool is returned to the angle, so that the rotary drive is located in the linear direction of the maintenance opening; (6) the forklift drives the carrying tool to break away from the maintenance opening, and the rotary drive is carried away from the tower body; (7) hoisting the new rotary drive on the carrying tool through a hoisting belt; (8) repeating the steps (2)-(3) by the forklift to move the rotary tool into the tower body; and (9) mounting a rotary drive on the rotary platform.

Description

Technical Field

[0001] The invention relates to the technical field of crane slewing platforms, and in particular to a drive replacement method for a slewing platform. Background Art

[0002] The slewing platform is the main body of the crane, which is connected to the tripod at the top and the slewing bearing at the bottom (the slewing bearing is then connected to the base with bolts). It is hinged to the pivot at the root of the boom through the bearing seat at the front. The slewing platform plays a connecting role.

[0003] In order to drive the slewing platform to rotate, it is necessary to use a slewing drive. Since the slewing drive is usually installed inside the tower body and connected to the slewing platform, this will not affect the drive of the slewing platform and can also save the space occupied by the crane.

[0004] However, since the slewing drive is installed inside the tower body, if the slewing drive needs to be repaired or replaced, it is necessary to enter the tower body through the maintenance port of the tower body and then lift the slewing drive out. Since the installation position of the slewing drive does not necessarily correspond to the maintenance port, it may be necessary to manually transfer the slewing drive to the position of the maintenance port before it can be carried out, which is time-consuming and labor-intensive. In addition, when the winch is rotated or moved out by the carrying tool, it is necessary to ensure the balance of the carrying device. If it is unbalanced, the slewing mechanism cannot be carried in a balanced manner, and thus cannot be reliably moved out of the tower body. Summary of the invention

[0005] The invention provides a drive replacement method for a rotary platform, which adjusts a handling tool according to the position of a rotary drive and ensures that a handling rod is balanced during rotation, thereby facilitating reliable handling of the rotary drives at different positions in a tower body.

[0006] To achieve the above object, the technical solution of the present invention is: a method for replacing the drive of a rotary platform, which is implemented by a handling tool, wherein the handling tool comprises a mounting plate and a handling rod, a rotating shaft is provided at the center of the mounting plate, one end of the handling rod is arranged on the rotating shaft and swings with the rotating shaft as a fulcrum, a limiting portion is further provided at the end of one end of the handling rod, and a sling is provided at the other end of the handling rod, and the specific steps include: (01) Determine the distance between the rotating axis on the carrying rod in the carrying tool and the connection position of the sling according to the weight of the slewing mechanism to be lifted, the weight of the carrying tool and the length of the carrying rod, so that the carrying rod is in a balanced state.

[0007] (1) Install the handling tool on the forklift and insert the fork tines of the forklift into the connecting grooves of the handling tool.

[0008] (2) The forklift drives the handling equipment into the tower through the maintenance opening of the tower.

[0009] (3) Adjust the angle of the handling tool so that the position of the handling tool swings in the direction of the rotary drive.

[0010] (4) The handling tool swings onto the slewing drive, and the handling tool lifts the slewing drive with a sling.

[0011] (5) Return the handling device to the correct angle so that the slewing drive is in the straight line direction of the maintenance opening.

[0012] (6) The forklift drives the handling equipment out of the maintenance opening and moves the slewing drive away from the tower.

[0013] (7) Use a sling to hang the other rotary drive on the handling tool.

[0014] (8) Use the forklift to repeat steps (2)-(3) to move the other rotary tooling into the tower body.

[0015] (9) Install the slewing drive on the slewing platform.

[0016] The above method first determines the connection position of the sling in the handling tool by the weight of the slewing mechanism, so that the handling tool is in a balanced state when the slewing mechanism is lifted, so that the slewing mechanism can be reliably moved out, and the handling tool is arranged on a forklift, the forklift drives the handling tool to extend into the tower body, and adjusts the angle of the handling tool according to the position of the slewing drive, so that the handling tool swings in the direction of the slewing drive, so that the slewing drive can be easily hoisted on the handling tool, and when the slewing drive is hoisted, the angle of the handling tool is corrected, so that the slewing drive can be located in the straight line direction of the maintenance port, and then the slewing drive can be transported out of the tower body from the direction of the maintenance port only by reversing the forklift, thereby facilitating the replacement of the slewing drive, and there is no need to manually move the slewing drive to the position of the maintenance port, so that the slewing drive at different positions in the tower body can be easily transported.

[0017] Furthermore, a driving motor is provided at the lower end of the mounting plate. The driving motor is connected to the rotating shaft, and the driving motor drives the rotating shaft to rotate.

[0018] The above arrangement drives the rotating shaft to rotate by the driving motor, thereby enabling the carrying rod to swing to different angles.

[0019] Furthermore, a driving cylinder is provided at the upper end of the mounting plate, the cylinder body of the driving cylinder is hinged on the mounting plate, the piston rod of the driving cylinder is hinged to the end of one end of the carrying rod, and the driving cylinder drives the piston rod to drive the end of one end of the carrying rod to slide in the swing groove.

[0020] The above arrangement drives the oil cylinder to push one end of the carrying rod to move, thereby causing the carrying rod to swing with the rotating shaft as a fulcrum to achieve angle adjustment.

[0021] Furthermore, the limiting part is a limiting rod, one end of the limiting rod is connected to the carrying rod, and the other end of the limiting rod is located in the swing groove.

[0022] The above arrangement enables one end of the carrying rod to be restricted to swing in the swing groove through the arrangement of the limiting rod.

[0023] Furthermore, a through hole is provided at the other end of the carrying rod, and the sling is fixed on the through hole.

[0024] The above arrangement facilitates fixing of the sling through the arrangement of the through holes.

[0025] Furthermore, a lifting ear is provided at the other end of the carrying rod, and the lifting belt is fixed on the lifting ear.

[0026] The above arrangement facilitates fixing of the sling through the arrangement of the lifting lugs.

[0027] Furthermore, step (4) specifically includes fixing one end of the sling on the lifting ear, and connecting the other end of the sling to the slewing drive. After the connection between the sling and the slewing drive is completed, the forklift lifts the fork teeth to make the slewing drive detach from the slewing platform, thereby bringing the slewing drive out of the tower body through the maintenance opening.

[0028] The above arrangement makes it easy to carry the rotary drive by connecting the sling to the rotary drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an exploded schematic diagram of the handling tool of the present invention.

[0030] Figure 2 It is a top view of the handling tool of embodiment 2 of the present invention.

[0031] Figure 3 It is a front view of the handling tool of the present invention.

[0032] Figure 4 It is a schematic diagram of the connection between the handling tooling and the rotary drive of the present invention.

[0033] Figure 5 It is a schematic diagram of the position of the rotary drive of the present invention.

[0034] Figure 6 It is the work flow chart of the present invention. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1.

[0037] like Figure 1-Figure 5As shown, a handling tool comprises a mounting plate 1 and a handling rod 2, a rotating shaft 11 is provided at the center of the mounting plate 1, one end of the handling rod 2 is arranged on the rotating shaft 11 and swings with the rotating shaft 11 as a fulcrum, a limiting portion 21 is also provided at the end of one end of the handling rod 2, a swinging groove 12 arranged with the rotating shaft 11 as the center is provided on the mounting plate 1 on one side of the rotating shaft 11, the limiting portion 21 is located in the swinging groove 12 and is slidably arranged in the swinging groove 12, a sling 20 is provided at the other end of the handling rod 2, a connecting groove 13 is provided at the lower end of the mounting plate 1, and the fork teeth 02 of the forklift 01 are extended into the connecting groove 13.

[0038] In this embodiment, a driving motor (not shown) is further provided at the lower end of the mounting plate 1, and the driving motor is connected to the rotating shaft 11, and the driving motor drives the rotating shaft 11 to rotate. The driving motor drives the rotating shaft 11 to rotate, thereby enabling the carrying rod 2 to swing to different angles.

[0039] The limiting part 21 is a limiting rod, one end of which is connected to the carrying rod 21, and the other end of which is located in the swing groove 12. The setting of the limiting rod allows one end of the carrying rod 12 to be limited in the swing groove 12 for swinging.

[0040] In this embodiment, if Figure 1 As shown, a through hole 22 is provided at the other end of the carrying rod 2, and the sling 20 is fixed on the through hole 2. The provision of the through hole facilitates the fixing of the sling 20.

[0041] In another embodiment, if Figure 3 As shown, a lifting eye 23 is provided at the other end of the carrying rod 2, and the sling 20 is fixed on the lifting eye 23. The provision of the lifting eye 23 facilitates the fixing of the sling 20.

[0042] In yet another embodiment, a camera is disposed at the bottom of the carrying rod, and the camera is used to conveniently observe whether the carrying rod has reached the position of the rotating mechanism.

[0043] like Figure 4-Figure 6 As shown, a method for replacing the drive of a rotary platform comprises the following specific steps: (01) Determine the distance between the rotating axis on the carrying rod in the carrying tool and the connection position of the sling according to the weight of the slewing mechanism to be lifted, the weight of the carrying tool and the length of the carrying rod, so that the carrying rod is in a balanced state; like Figure 3 and Figure 4As shown, in this embodiment, according to the principle of torque balance: the weight of the slewing mechanism g1*the distance d1 between the rotating axis and the connection position of the sling=the weight of the handling tool g2*(the length L of the handling tool-the distance d1 between the rotating axis and the connection position of the sling), thereby confirming the distance between the rotating axis on the handling rod in the handling tool and the connection position of the sling.

[0044] (1) Install the transport tool on the forklift 01 and insert the fork tine 02 of the forklift 01 into the connecting groove 13 of the transport tool.

[0045] (2) Forklift 01 drives the handling equipment through the maintenance opening 002 of the tower body 001 and extends into the tower body.

[0046] (3) Adjust the angle of the handling tool so that the position of the handling tool swings in the direction of the rotary drive 003.

[0047] (4) The handling tool swings onto the rotary drive 003, and the handling tool lifts the rotary drive 003 via the sling 20.

[0048] Step (4) specifically includes fixing one end of the sling 20 on the lifting ear 23, and connecting the other end of the sling 20 to the slewing drive 003. After the sling 20 is connected to the slewing drive 003, the forklift 01 lifts the fork teeth 02 to make the slewing drive 003 detach from the slewing platform, thereby bringing the slewing drive 003 out of the tower body from the maintenance opening 002.

[0049] (5) The handling tool is adjusted to the correct angle so that the rotary drive 003 is located in the straight line direction of the maintenance opening 002.

[0050] (6) Forklift 01 drives the handling tool out of the maintenance opening 002 and moves the rotary drive 003 away from the tower body 001.

[0051] (7) The other rotary drive 003 is hoisted onto the transport tool through the sling 20.

[0052] (8) Forklift 01 repeats steps (2)-(3) to move another rotary tooling into tower body 001.

[0053] (9) Install the slewing drive 003 on the slewing platform.

[0054] The working principle of the present invention is as follows: first, the connection position of the sling in the handling tool is determined by the weight of the slewing mechanism, so that the handling tool is in a balanced state when the slewing mechanism is lifted, so that the slewing mechanism can be reliably moved out; by arranging the handling tool on the forklift 01, the forklift 01 drives the handling tool to extend into the interior of the tower body 001, and adjusts the angle of the handling tool according to the position of the slewing drive 003, so that the handling tool swings in the direction of the slewing drive 003, so that the slewing drive 003 can be easily hoisted on the handling tool; after the slewing drive 003 is hoisted, the angle of the handling tool is corrected, so that the slewing drive 003 can be located in the straight line direction of the maintenance opening 002, and then the slewing drive 003 can be transported out of the tower body 001 from the direction of the maintenance opening 002 only by reversing the forklift 01, so that the replacement of the slewing drive 003 is convenient, and there is no need to manually move the slewing drive 003 to the position of the maintenance opening 002, so that the slewing drive at different positions in the tower body 01 can be easily transported.

[0055] Example 2.

[0056] In this embodiment, if Figure 2 As shown, the other structures of the handling tool are the same as those of the embodiment 1, except that: a driving cylinder 3 is provided at the upper end of the mounting plate 1, the cylinder body 31 of the driving cylinder 3 is hinged on the mounting plate 1, the piston rod 32 of the driving cylinder 3 is hinged to the end of one end of the handling rod 2, and the driving cylinder 3 drives the piston rod 32 to drive the end of one end of the handling rod 2 to slide in the swing groove. The driving cylinder 3 pushes one end of the handling rod 2 to move, thereby causing the handling rod 2 to swing with the rotating shaft 11 as a fulcrum to achieve angle adjustment.

Claims

1. A method for replacing a drive of a rotary platform, characterized in that: The transport tooling is realized by a transport tooling, which includes a mounting plate and a transport rod, a rotating shaft is provided at the center of the mounting plate, one end of the transport rod is arranged on the rotating shaft and the rotating shaft is used as a fulcrum for swinging, a limiting part is also provided at the end of one end of the transport rod, and a sling is provided at the other end of the transport rod. The specific steps include: (01) Determine the distance between the rotating axis on the carrying rod in the carrying tool and the connection position of the sling according to the weight of the slewing mechanism to be lifted, the weight of the carrying tool and the length of the carrying rod, so that the carrying rod is in a balanced state; (1) Install the handling tool on the forklift and insert the fork tines of the forklift into the connection slots of the handling tool; (2) The forklift drives the handling equipment into the tower through the maintenance opening of the tower; (3) Adjust the angle of the handling tool so that the position of the handling tool swings in the direction of the rotary drive; (4) The handling tool swings onto the slewing drive, and the handling tool lifts the slewing drive through the sling; (5) The handling tool is adjusted to the correct angle so that the rotary drive is in the straight line direction of the maintenance opening; (6) The forklift drives the handling equipment out of the maintenance opening and moves the slewing drive away from the tower body; (7) Hoist the other rotary drive onto the handling equipment through a sling; (8) The forklift repeats steps (2)-(3) to move another rotary tooling into the tower body; (9) Install the slewing drive on the slewing platform.

2. The drive replacement method of a rotary platform according to claim 1, characterized in that: A driving motor is also provided at the lower end of the mounting plate. The driving motor is connected to the rotating shaft, and the driving motor drives the rotating shaft to rotate.

3. The drive replacement method of a rotary platform according to claim 1, characterized in that: A driving cylinder is provided at the upper end of the mounting plate, the cylinder body of the driving cylinder is hinged on the mounting plate, the piston rod of the driving cylinder is hinged to the end of one end of the conveying rod, and the driving cylinder drives the piston rod to drive the end of one end of the conveying rod to slide in the swing groove.

4. The drive replacement method of a rotary platform according to claim 1, characterized in that: The limiting part is a limiting rod, one end of which is connected to the carrying rod, and the other end of which is located in the swinging groove.

5. The drive replacement method of a rotary platform according to claim 1, characterized in that: A through hole is arranged at the other end of the carrying rod, and the sling is fixed on the through hole.

6. The drive replacement method of a rotary platform according to claim 1, characterized in that: A lifting lug is arranged at the other end of the carrying rod, and the lifting belt is fixed on the lifting lug.

7. The drive replacement method of a rotary platform according to claim 6, characterized in that: Step (4) specifically includes fixing one end of the sling on the lifting ear, and connecting the other end of the sling to the slewing drive. After the connection between the sling and the slewing drive is completed, the forklift lifts the fork teeth to make the slewing drive detach from the slewing platform, thereby bringing the slewing drive out of the tower body through the maintenance opening.

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