Automatic multiplying power changing device of tower crane

A tower crane and magnification change technology, applied in the directions of transportation and packaging, load hanging components, etc., can solve problems such as reducing work efficiency

Inactive Publication Date: 2012-12-19
JIANGLU MACHINERY & ELECTRONICS GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method reduces work efficiency when the we

Method used

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  • Automatic multiplying power changing device of tower crane
  • Automatic multiplying power changing device of tower crane
  • Automatic multiplying power changing device of tower crane

Examples

Experimental program
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Embodiment Construction

[0013] Such as Figure 1-9 As shown, the device includes a load trolley and a hook assembly, wherein the load trolley includes a trolley 1, a runner 2, a handle fixing rod, and a handle 3, and the hook assembly includes an I-shaped connecting rod 4, a pulley block 5, and a hook set 6 , wherein, two runners 2 for guiding the rope are installed on the trolley, and the key components gripper fixing rod and gripper 3, which are used to realize magnification conversion, are installed on the main beam of the trolley. Back-moving spring is arranged, and the I-shaped connecting rod 4 that is used to connect gripper and the pulley block 5 that realizes magnification conversion are welded on the pulley block, and suspension hook and two runners that are used for guiding rope are housed on the hook block 6 .

[0014] Such as Figure 8 The figure shows that the double ratio is generally used for light loads. At this time, the pulley block is stuck in the slot of the hook block due to the...

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Abstract

The invention relates to an automatic multiplying power changing device of a tower crane. The automatic multiplying powder changing device comprises a load trolley and a lifting hook assembly, wherein the load trolley consists of a trolley (1), turning wheels (2), a hand grip fixed rod, and a hang grip (3), the lifting hook assembly consists of an I-shaped connecting rod (4), a pulley block (5), a lifting hook group (6), the trolley is provided with the two turning wheels (2) used for guiding ropes, key components: the hand grip fixing rod and the hand grip (3) for realizing changing of the multiplying power are arranged on a main beam of the trolley, a reset spring is arranged at a connection position of the hand grip (3) and the hand grip fixing rod, the I-shaped connecting rod (4) connected with the hand grip and the pulley block (5) are welded on the pulley block, and the lifting hook group (6) is provided with a lifting hook and the two turning wheels for guiding ropes. The automatic multiplying power changing device of the tower crane can complete quick and reliable changing of twice multiplying power and fourth multiplying power of the hoisting mode of the tower crane without the need of manual operation.

Description

technical field [0001] The invention relates to a device for automatically changing the magnification of the hook of a tower crane. Background technique [0002] Tower crane is a common construction machinery on construction sites. In order to balance efficiency and safety, tower cranes generally provide two options of double rate and quadruple rate. When transporting heavy goods, the low-speed quadruple rate is used. High-speed double rate. The whole process is actually realized by different positioning of the pulley block in the hook assembly. Using these two methods flexibly allows the tower crane to complete the work efficiently. But most of the existing cranes still adopt the manual magnification change mode, that is, the manual magnification change is realized by the movable magnification change plug fixed on the hook assembly. During the operation, the workman stops working first, puts the rope until the hook assembly is put on the ground, and uses tools to disasse...

Claims

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Application Information

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IPC IPC(8): B66C1/10
Inventor 于春和张治军钱丽萍
Owner JIANGLU MACHINERY & ELECTRONICS GROUP
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