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a miniature crane

A kind of crane and miniature technology, applied in the direction of crane, transportation and packaging, can solve the problems of no electricity, no work, exhaust gas pollution, etc., and achieve the effect of light operation, strong environmental adaptability and simple structure

Inactive Publication Date: 2016-11-23
SHANDONG JIANZHU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned defects of crane equipment for hoisting and manual handling, and at the same time solve the problems of existing light and small cranes that do not work without electricity and exhaust gas pollution, and provide a crane with simple structure, light operation, low cost and strong environmental adaptability. small crane

Method used

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  • a miniature crane
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Embodiment Construction

[0023] Please refer to figure 1 , figure 2 , image 3 , the present invention is a kind of miniature crane, comprises bottom frame 1, vertical frame 3, boom 5, lifting system, and lifting system is provided with lifting platform 2, transmission device 12 and locking mechanism 9, and lifting platform 2 is fixedly connected at the bottom The vertical frame 3 on the frame 1 forms a mobile pair that moves up and down relative to each other. The rope wheel 23 on the lifting platform 2 is connected with the transmission device 12, and the steel wire rope 24 on the rope wheel 23 bypasses the pulley 25 to connect the hook; the transmission device 12, the locking mechanism 9 are installed on the top and the bottom of lifting platform 2 respectively. The lifting system transmission device 12 includes a clutch 121 and a worm reducer 122. Half of the clutch 121 is fixed on the sheave 23, and half is nested on the worm shaft. A hand-operated device is provided on the worm, and the hand-...

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Abstract

A miniature crane comprises an underframe, a floor stand, a hanging arm and a lifting system. The lifting system is provided with a lifting platform, a transmission device and a locking mechanism; the lifting platform and the vertical frame fixedly connected on the underframe form a sliding pair move up and down in relative motion; a rope heave on the lifting platform is connected to the transmission device; the steel rope on the rope heave passes through the pulley and is connected with a hook by one end of a hanging arm; and the transmission device and the locking mechanism are respectively arranged on the upper part and lower part of the lifting platform. The transmission device of the lifting system comprises a clutch and a worm reducer; a hand-operated device on a worm can control rotation and locking of the worm; a positioning pin shaft in the locking mechanism of the lifting system cooperate or disengage from corresponding positioning location holes on the floor stand, so as to complete the lifting of weight or locking of the miniature crane. The lifting system also comprises a balancing device to ensure steady rising or descending of the lifting platform and lifted weight.

Description

technical field [0001] The invention belongs to the technical field of cranes, in particular to a miniature crane. Background technique [0002] In order to save resources and implement green construction, prefabricated concrete blocks of certain specifications are often used for temporary roads and site paving on construction sites, but it is difficult to solve the problems of unloading and laying in place after these prefabricated blocks with rated weight arrive at the site. If large and medium-sized hoisting equipment such as truck cranes are used, the economy is poor and the shift fee is high; if manual handling is used, the labor intensity is high, the safety is poor, time-consuming and laborious, and the construction efficiency is low; The system is driven by electricity, or internal combustion engine as the driving force, and hydraulic pump as the secondary power. On the one hand, the former may not be equipped with the electric system in the early stage of the constr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/62B66C23/84
CPCB66C23/166B66C23/62B66C23/84B66C2700/03B66C2700/0392
Inventor 原政军马荣全苗冬梅张明勤孟宪举姚玉善张士军王晴刘昆王凯靳斐郝圣文
Owner SHANDONG JIANZHU UNIV
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