Tower crane and dynamic pulley block transfer equipment

Abstract

The utility model discloses a tower crane is with dynamic pulley group transfer equipment and tower crane, tower crane is with dynamic pulley group transfer equipment includes traction device and guide slide rope, and traction device is located on the hoist arm of tower crane, and one end of guide slide rope is connected with hoist arm, and the other end of guide slide rope is connected with the A frame of tower crane, and guide slide rope passes through dynamic pulley group setting, and traction device is driven to be connected with dynamic pulley group and is used for driving dynamic pulley group and slides along guide slide rope. In dynamic pulley group transfer equipment, guide slide rope is used for guiding dynamic pulley group and slides, and traction device is used for driving dynamic pulley group and slides, so that dynamic pulley group can be quickly transferred to hoist arm along guide slide rope, and dynamic pulley group transfer saves time and labour, and the transfer efficiency is improved greatly, and the tower crane installation efficiency is improved further, and the dynamic pulley group can be transferred without configuring the truck crane, and the transfer cost is reduced.

Claims

1. A transfer device using a movable pulley block for tower cranes, characterized in that, The tower crane's movable pulley block transfer equipment includes: A traction device (10) is mounted on the jib (200) of the tower crane; A guide cable (20) is provided, one end of which is connected to the crane boom (200), and the other end of which is connected to the A-frame (300) of the tower crane. The guide cable (20) passes through a movable pulley block (400). The traction device (10) is drivenly connected to the movable pulley block (400) and is used to drive the movable pulley block (400) to slide along the guide cable (20).

2. The tower crane movable pulley block transfer device according to claim 1, characterized in that, The traction device (10) includes a traction hook (11) and a traction drive mechanism (12). The traction drive mechanism (12) is mounted on the lifting arm (200). The mounting end of the traction hook (11) is driven to connect with the traction drive mechanism (12). The movable pulley block (400) is provided with a hooking ear plate (401). The hooking end of the traction hook (11) is hooked to the hooking ear plate (401). The traction drive mechanism (12) is used to drive the traction hook (11) to pull the movable pulley block (400) to slide.

3. The tower crane movable pulley block transfer device according to claim 2, characterized in that, The traction drive mechanism (12) includes a traction rope (121) and a transfer winch (122). The transfer winch (122) is mounted on the lifting arm (200), and the traction rope (121) is mounted on the transfer winch (122) and drivenly connected to the mounting end of the traction hook (11).

4. The tower crane movable pulley block transfer device according to claim 3, characterized in that, The traction drive mechanism (12) further includes a pulley assembly (123), and the traction rope (121) is set from the transfer winch (122) around the pulley assembly (123) and is driven to be connected to the mounting end of the traction hook (11).

5. The tower crane movable pulley block transfer device according to claim 4, characterized in that, The traction drive mechanism (12) further includes a mounting base (124), which is disposed on the lifting arm (200). The pulley assembly (123) includes a traction fixed pulley (1231), which is rotatably disposed on the mounting base (124). The traction rope (121) is disposed from the transfer winch (122) around the traction fixed pulley (1231) and is drivenly connected to the mounting end of the traction hook (11).

6. The tower crane movable pulley block transfer device according to claim 5, characterized in that, The pulley assembly (123) further includes a traction pulley (1232). The traction rope (121) is arranged to pass around the traction fixed pulley (1231) and the traction movable pulley (1232) in sequence from the transfer winch (122). The end of the traction rope (121) away from the transfer winch (122) is connected to the mounting base (124). The mounting end of the traction hook (11) is connected to the traction movable pulley (1232).

7. The tower crane movable pulley block transfer device according to any one of claims 1 to 6, characterized in that, The movable pulley assembly (400) includes a variable amplitude movable pulley (402) and a mounting frame. The mounting frame includes a frame body (403) and a sliding rod (404). The variable amplitude movable pulley (402) is rotatably disposed within the frame body (403). The sliding rod (404) is disposed on the frame body (403). The guide cable (20) passes through the frame body (403) and is disposed between the sliding rod (404) and the variable amplitude movable pulley (402).

8. The tower crane movable pulley block transfer device according to any one of claims 1 to 6, characterized in that, The movable pulley block transfer equipment also includes a traction mechanism (30), which includes a luffing rope (31) and a luffing winch (32). The luffing winch (32) is mounted on the A-frame (300), and the luffing rope (31) is mounted on the luffing winch (32). The luffing rope (31) passes around the movable pulley block (400) and is connected to the A-frame (300).

9. The tower crane movable pulley block transfer device according to claim 8, characterized in that, The A-frame (300) includes a first support frame (301) and a second support frame (302). The upper end of the first support frame (301) is connected to the upper end of the second support frame (302). The lower ends of the first support frame (301) and the lower ends of the second support frame (302) are spaced apart in a direction away from the boom (200). The luffing winch (32) is mounted on the second support frame (302). The luffing rope (31) is connected to the first support frame (301) at one end away from the luffing winch (32). The guide cable (20) is connected to the first support frame (301) at one end away from the boom (200).

10. A tower crane, characterized in that, The tower crane includes a tower crane transfer device with a movable pulley block as described in any one of claims 1 to 9.

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