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Miniature crane

A crane and miniature technology, applied in cranes and other directions, can solve problems such as deficiencies, and achieve the effects of reducing constraints, supporting stability, and improving lifting capacity.

Inactive Publication Date: 2012-09-26
DALIAN UNIV OF TECH +6
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The car can be rotated 180° and lifted from both sides, but it still feels insufficient in practical application, and the car can only lift heavy objects below 400 kg

Method used

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Examples

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Embodiment 1

[0031] See figure 1 , This embodiment includes a boom 1, a hook 2, a base 3, a slewing mechanism 4, a turntable 5, a luffing rope support frame 6, a counterweight box 7, a counterweight arm 8 and a bracket 9.

[0032] The hook 2 is hung on the top of the jib 1 by a hoisting rope. The rotary mechanism 4 can rotate at any angle of 360°, so that the range of motion of the heavy object can be extended from plane to three-dimensional. The rotary mechanism 4 includes a rotary shaft 41 and a shaft sleeve 42 that are rotatably connected. The jib 1 is hinged on the front side of the rotary shaft 41, so that the jib 1 can flexibly lift or lie down. This structure is conducive to welding and reduces deformation of the base metal. The turntable 5 is fixed on the rear side of the rotating shaft 41 , and the shaft sleeve 42 is fixed on the base 3 . Both the base 3 and the turntable 5 adopt a box structure.

[0033] A worm gear luffing mechanism 51 and a worm gear hoisting mechanism 52 a...

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Abstract

The invention discloses a miniature crane, which comprises a jib and a hook. The hook is hung to the jib top by a lifting rope. The crane also includes a pedestal, a slewing mechanism and a rotary table. The slewing mechanism can slew at any angle within 360 degrees, and includes a slewing shaft and a shaft sleeve in rotation connection. The jib is hinged to the front side of the slewing shaft, the rotary table is fixed to the rear side of the slewing shaft, and the shaft sleeve is fixed on the pedestal. The pedestal and the rotary table both adopt a box structure. The inside of the rotary table is provided with a worm-gear luffing mechanism and a worm-gear hoisting mechanism. The housing of the rotary table is in rotation connection with a crank handle that is connected to the worm-gear luffing mechanism. By setting the slewing mechanism able to slew at any angle within 360 degrees, the miniature crane of the invention realizes expansion of the movement range of heavy objects from two dimensions to three dimensions.

Description

technical field [0001] The present invention relates to miniature cranes. Background technique [0002] The current miniature cranes have a small hoisting capacity, and heavy objects can only be hoisted and moved within a plane range. Chinese patent document CN94229456.4 provides a kind of " manpower, electric dual-purpose miniature running crane ", and this car can rotate 180 ° and lift from both sides, and vertical bar, boom all can be elongated. The car can be rotated 180° and lifted from both sides, but it still feels insufficient in practical application, and the car can only lift heavy objects below 400 kilograms. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a compact structure micro-crane suitable for narrow spaces, inaccessible to manpower, low in cost requirements, and with a lifting capacity of 1000 kg. [0004] In order to solve the above technical problems, the technical solution provided by the ...

Claims

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Application Information

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IPC IPC(8): B66C23/06B66C23/16B66C23/84B66C23/64B66C23/78B66C23/82B66C23/74
Inventor 蔡福海高顺德黄良斌郑亚辉朱一兵黄一
Owner DALIAN UNIV OF TECH
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