People and goods dual-purpose vertical-transportation building construction elevator

Abstract

The invention discloses a people and goods dual-purpose vertical-transportation building construction elevator and belongs to the field of elevators. According to the people and goods dual-purpose vertical-transportation building construction elevator, a steel wire rope traction transmission mode is adopted, a single column and two cages are arranged, the two cages are arranged on the two sides of a main frame respectively, and each cage moves up and down along an angle iron guide rail on one side of the main frame through a pulley on one side of the cage; counter-weight pulley guide rails are arranged on the inner sides of the main frame, and counter weights move up and down along the counter-weight guide rails on the inner sides of the main frame through pulleys of the counter weights; a traction machine is positioned and installed at the top end of the main frame; one end of each traction steel wire rope is connected with the top of the cage on the corresponding side in a balanced and hanging mode; the tensile strength of each traction steel wire rope is equal to or higher than 1570 N / mm, and the safety coefficient of each traction steel wire rope is equal to or lager than 14.8; the weight of the counter weights is two fifths or half the sum of the weight of the cages and the rated deadweight of the cages. The weight of the cages and approximately half of the rated deadweight are balanced out by means of the counter weights, actual required driving power is greatly lowered, and operation is made stable and safe.

Description

technical field [0001] The invention belongs to the field of lifting machinery, and in particular relates to a construction elevator for vertical transportation of people and goods. Background technique [0002] At present, the dual-purpose vertical transport machinery for people and goods used in the construction site of high-rise buildings is the mainstream of rack and pinion transmission elevators, which is a mature technical product. However, this type of rack and pinion transmission elevators has many shortcomings. : [0003] 1. For this type of transmission elevator, the up and down movement of the cage along the elevator house is completed by rack and pinion transmission. On the one hand, auxiliary racks are continuously installed on the main frame connected by unit standard joints of hundreds of meters, and the accuracy The requirements are high, the construction and cost of the rack are high, and the elevator inevitably has large vibrations such as movement. On th...

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Problems solved by technology

[0003] 1. For this type of transmission elevator, the up and down movement of the cage along the elevator house is completed by rack and pinion transmission. On the one hand, auxiliary racks are continuously installed on the main frame connected by unit standard joints of hundreds of meters, and the accuracy The requirements are high, the construction and cost of the rack are high, and the elevator inevitably has problems such as large movement vibration

On the other hand, as the rack and pinion mechanism used in the outdoor construction site for a long time in the open air, due to the influence of dust and meteorological factors, the rack and pinion wear and corrode, which affects the safety of the whole machine operation, seriously Sometimes it will even cause major accidents such as falling. In addition, the rack and pinion transmission mode, its driving and transmission mechanism itself is placed on the top of the cage, generally using double or triple transmission mechanisms, and each cage is equipped with 2 to 3 11KW motors , the weight of the mechanism itself becomes the load of the elevator, which runs up and down together with the cage, resulting in large power consumption, high energy consumption, low mechanical efficiency, high production costs, and high maintenance costs

[0004] 2. For this type of transmission elevator, the connection between the cage and the main frame is "one-side hanging type". The cage is connected to one side of the main frame of the elevator by its guide wheel. For the purpose of preventing one side of the cage from being deformed by force, the cage has high structural strength requirements, many materials, heavy weight, complicated production, and complicated inspection and maintenance of track guide wheels

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