Dismounting device for high-altitude angle self-adjusting balancing weight of tower crane

Abstract

The utility model relates to a tower crane high-altitude self-adjusting angle balancing weight dismounting device which comprises a supporting frame arranged on a tower crane balance weight arm, and the supporting frame and the tower crane balance weight arm are jointly provided with a lifting assembly. The lifting assembly drives the balancing weight placed on the tower crane balance weight arm to be disengaged from the tower crane balance weight arm and conveys the balancing weight to the ground. The utility model relates to the technical field of tower cranes. The tool has the advantages that an operator can conveniently and rapidly detach the balancing weight in various environments, the working efficiency is improved, and meanwhile the economic expenditure of detaching operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tower cranes, in particular to a high-altitude self-adjusting angle counterweight disassembly device for tower cranes. Background Art

[0002] Tower cranes (abbreviated as tower cranes) are heavy equipment widely used on construction sites. Existing tower cranes have the following problems: a mobile crane is needed to install and dismantle the tower crane counterweight. The position of the mobile crane on the foundation must meet the corresponding endurance requirements. During hoisting, the arm and structural parts must be unobstructed around a large three-dimensional space. The actual construction site environment is complex and changeable, and often cannot meet the problem of conventional demolition. When the construction is completed, the building is formed. In special environments, it is even impossible to use mobile cranes and roof cranes for demolition operations. For example, the tower crane used in the cooling tower of a power plant cannot enter the tower to assist the tower crane in demolition operations after the cooling tower is completed. This seriously affects the construction efficiency and increases a lot of additional economic expenditure. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a high-altitude self-adjusting angle counterweight disassembly device for a tower crane, which is convenient for operators to quickly disassemble the counterweight in various environments, thereby improving work efficiency and reducing the economic expenditure of the disassembly operation.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A tower crane high altitude self-adjusting angle counterweight disassembly device comprises a support frame arranged on the tower crane counterweight arm, wherein the support frame and the tower crane counterweight arm are jointly provided with a lifting assembly;

[0006] The lifting assembly drives the counterweight block placed on the counterweight arm of the tower crane to break contact with the counterweight arm of the tower crane and transports the counterweight block to the ground.

[0007] In a preferred example, the utility model can be further configured as follows: the lifting assembly includes a first winch fixedly mounted on the top of the support frame, a second winch fixedly mounted on the tower crane counterweight arm, and two connecting pipes hinged to the tower crane counterweight arm;

[0008] The two connecting pipes are fixedly connected by a pin, and a connecting assembly is arranged between the two connecting pipes;

[0009] The connecting assembly includes a pulley;

[0010] The first hoist is connected to the connection assembly via a luffing wire rope;

[0011] The second hoist is connected to the counterweight through a lifting wire rope, and the lifting wire rope passes around the pulley.

[0012] In a preferred example, the utility model can be further configured as follows: the connection assembly further includes two angle plates, the two angle plates are symmetrically sleeved on the outer peripheral surface of the pin, and the two angle plates are both rotatably connected to the pin, and the two angle plates are both located between the two connecting pipes;

[0013] The pulley is rotatably sleeved on the outer peripheral surface of the pin, the pulley and the pin are connected via a bearing seat, and the pulley is located between the two angle plates;

[0014] A connecting rod is commonly arranged on the two angle plates, the connecting rod is rotatably connected to the two angle plates, and one end of the variable amplitude steel wire rope is fixed to the connecting rod.

[0015] In a preferred example, the utility model can be further configured as follows: each connecting pipe includes an upper holding pole section and a lower holding pole section;

[0016] One end of each upper section of the holding pole and one end of each lower section of the holding pole are provided with a flange;

[0017] Two flanges on the same connecting pipe are connected by bolts;

[0018] The other ends of the two upper sections of the holding poles are each provided with a connecting plate, the pin passes through the two connecting plates, and the pin is fixedly connected to the two connecting plates;

[0019] The other ends of the two lower sections of the holding rods are hinged to the counterweight arms of the tower crane.

[0020] In a preferred example, the utility model can be further configured as follows: a plurality of ear seats are equidistantly arranged on the two upper sections of the holding rods and the two lower sections of the holding rods along the axial direction thereof.

[0021] In summary, the present invention includes at least one of the following beneficial technical effects:

[0022] 1. By arranging a lifting assembly on the tower crane boom, the lifting assembly does not need to be placed in a certain space or have any ground strength requirements. It is convenient for operators to quickly remove the counterweight in various environments, thereby improving work efficiency and reducing the economic expenditure of the disassembly operation.

[0023] 2. By dividing the connecting pipe into the upper section and the lower section of the pole, it is convenient for operators to carry the connecting pipe and reduce the space occupied by the connecting pipe during transportation.

[0024] 3. By providing a plurality of ear seats on the upper section and the lower section of the pole, it is convenient for operators to carry the upper section and the lower section of the pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Is a schematic diagram of the main structure of the present embodiment;

[0026] Figure 2 yes Figure 1 A schematic diagram of the top view of the connecting pipe and the connecting assembly;

[0027] Figure 3 yes Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 4 yes Figure 2 A schematic diagram of the structure is enlarged at B;

[0029] Figure 5 It is a schematic diagram of the overall structure of this embodiment;

[0030] Figure 6 yes Figure 5 Enlarged structural diagram at point C in the middle.

[0031] In the figure, 1, support frame; 2, lifting assembly; 21, first winch; 22, second winch; 3, pulley; 31, angle plate; 4, upper section of holding rod; 41, lower section of holding rod; 42, connecting plate; 5, ear seat. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0033] Example:

[0034] Reference Figure 1-Figure 6 As shown, the utility model discloses a tower crane high altitude self-adjusting angle counterweight disassembly device, which comprises a support frame 1 arranged on the tower crane counterweight arm.

[0035] The support frame 1 and the tower crane counterweight arm are provided with a lifting assembly 2. The lifting assembly 2 drives the counterweight block placed on the tower crane counterweight arm to break contact with the tower crane counterweight arm and transport the counterweight block to the ground.

[0036] The lifting assembly 2 comprises a first hoist 21 fixedly mounted on the top of the support frame. The first hoist 21 is located at a certain distance from the tower crane counterweight arm. A second hoist 22 fixedly mounted on the tower crane counterweight arm and two connecting pipes hinged to the tower crane counterweight arm.

[0037] In order to facilitate handling, transportation and assembly of the connecting pipes, each connecting pipe includes an upper section 4 of the holding pole and a lower section 41 of the holding pole. The vertical sections of the upper section 4 of the holding pole and the lower section 41 of the holding pole are both circular. One end of each upper section 4 of the holding pole and one end of each lower section 41 of the holding pole are provided with a flange.

[0038] Two flanges on the same connecting pipe are connected by bolts.

[0039] In order to increase the connection firmness between the flange and the upper section 4 of the pole or the lower section 41 of the pole, a plurality of ribs are provided on the flange, and the plurality of ribs are welded to the outer peripheral surface of the upper section 4 of the pole or the lower section 41 of the pole.

[0040] The other ends of the two holding rod lower sections 41 are both hinged to the tower crane counterweight arm.

[0041] The other ends of the two holding pole upper sections 4 are both provided with connecting plates 42. The two connecting plates 42 are provided with pins.

[0042] The pin is fixedly connected to both connecting plates 42 .

[0043] A plurality of ear seats 5 are equidistantly arranged on the two upper sections 4 of the two holding poles and the two lower sections 41 of the two holding poles along the axial direction thereof, so as to facilitate the installation of the transport, effectively reduce the space occupied by the transport, and improve the convenience of use.

[0044] A connecting assembly is arranged between the two connecting pipes.

[0045] The connecting assembly includes a pulley 3 and two angle plates 31 .

[0046] The two angle plates 31 are symmetrically sleeved on the outer circumference of the pin, and the two angle plates 31 are both rotatably connected to the pin, and the two angle plates 31 are both located between the two connecting pipes.

[0047] A through hole is provided at each angle, and a connecting rod is provided on the two angle plates. The connecting rod passes through the through hole and is rotatably connected to the two angle plates.

[0048] A luffing steel wire rope is wound on the first hoist 21 , one end of the luffing steel wire rope is fixed to the output end of the first hoist 21 , and the other end of the luffing steel wire rope is fixed to the connecting rod.

[0049] The second hoist 22 is connected to the counterweight through a lifting wire rope, and the lifting wire rope passes around the pulley.

[0050] The pulley 3 is rotatably sleeved on the outer peripheral surface of the pin, the pulley 3 and the pin are connected via a bearing seat, and the pulley 3 is located between the two angle plates.

[0051] The implementation principle of the above embodiment is:

[0052] The operator first lifts one end of the wire rope and connects it to the counterweight to be removed.

[0053] After the power is turned on, the operator starts the first hoist 21, and the first hoist 21 drives the luffing wire rope to rewind. The luffing wire rope drives the angle plate 31 to rotate and drives the angle plate 31 to move, the angle plate 31 drives the pin to move, and the pin drives the two connecting pipes to rotate around one end thereof hinged to the tower crane counterweight arm.

[0054] As the connecting pipes move, the two connecting pipes drive the pulley 3 to move, so that the pulley 3 moves to just above the counterweight to be removed.

[0055] Next, the operator stops the first hoist 21 and then connects the power supply to start the second hoist 22.

[0056] The second hoist 22 rewinds the lifting wire rope, and the lifting wire rope drives the counterweight block to move upward so that the counterweight block is out of contact with the tower crane counterweight arm and the counterweight block moves to a certain height. The operator stops rewinding the lifting wire rope.

[0057] The operator starts the first hoist 21 again, and the first hoist 21 releases the luffing wire rope, so that the angle between the two connecting pipes and the tower crane counterweight arm becomes smaller. When the counterweight block exceeds the tail of the tower crane balance arm, the luffing wire rope is stopped from being released.

[0058] The operator shuts down the first hoist 21 again and starts the second hoist 22. The second hoist 22 is made to release the lifting wire rope. As the lifting wire rope moves, the height of the counterweight block and the ground gradually shortens, and finally the counterweight block contacts the ground.

[0059] After the counterweight is separated from one end of the lifting wire rope, the operator starts the second hoist 22, and the drum rotates to recycle the lifting wire rope. The second hoist 22 is turned off.

[0060] Subsequent removal of the counterweight follows the above steps.

[0061] The first hoist 21 and the second hoist 22 are powered by a power cabinet on the tower crane body.

[0062] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A tower crane high altitude self-adjusting angle counterweight disassembly device, characterized in that: It comprises a support frame (1) arranged on a counterweight arm of a tower crane, wherein a lifting assembly (2) is arranged together with the support frame (1) and the counterweight arm of the tower crane; The lifting assembly (2) drives the counterweight block placed on the counterweight arm of the tower crane to break contact with the counterweight arm of the tower crane and transport the counterweight block to the ground.

2. The tower crane high altitude self-adjusting angle counterweight disassembly device according to claim 1 is characterized in that: The lifting assembly (2) comprises a first hoist (21) fixedly mounted on the top of the support frame (1), a second hoist (22) fixedly mounted on the counterweight arm of the tower crane, and two connecting pipes hingedly connected to the counterweight arm of the tower crane; The two connecting pipes are fixedly connected by a pin, and a connecting assembly is arranged between the two connecting pipes; The connecting assembly comprises a pulley (3); The first hoist (21) is connected to the connection assembly via a luffing wire rope; The second hoist (22) is connected to the counterweight via a lifting wire rope, and the lifting wire rope passes around the pulley (3).

3. The tower crane high altitude self-adjusting angle counterweight disassembly device according to claim 2 is characterized in that: The connection assembly further comprises two angle plates (31), the two angle plates (31) being symmetrically sleeved on the outer peripheral surface of the pin, and the two angle plates (31) being rotationally connected to the pin, and the two angle plates (31) being located between the two connection pipes; The pulley (3) is rotatably sleeved on the outer peripheral surface of the pin, the pulley (3) and the pin are connected via a bearing seat, and the pulley (3) is located between the two angle plates (31); A connecting rod is commonly provided on the two angle plates (31), the connecting rod is rotatably connected to the two angle plates (31), and one end of the variable amplitude steel wire rope is fixed to the connecting rod.

4. The tower crane high altitude self-adjusting angle counterweight disassembly device according to claim 3 is characterized in that: Each connecting pipe comprises an upper holding pole section (4) and a lower holding pole section (41); One end of each of the upper sections (4) of the holding rod and one end of each of the lower sections (41) of the holding rod are provided with a flange; Two flanges on the same connecting pipe are connected by bolts; The other ends of the two holding pole upper sections (4) are each provided with a connecting plate (42), the pin passes through the two connecting plates (42), and the pin is fixedly connected to the two connecting plates (42); The other ends of the two lower sections of the holding rod (41) are both hinged to the counterweight arm of the tower crane.

5. The device for disassembling a high-altitude self-adjusting angle counterweight block of a tower crane according to claim 4, characterized in that: A plurality of ear seats (5) are equidistantly arranged on the two holding rod upper sections (4) and the two holding rod lower sections (41) along the axis direction thereof.

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