An aluminum counterweight door for large machine tools

Abstract

The invention relates to an aluminum counter weight door for a large-sized machine tool. The aluminum counter weight door comprises an aluminium door and two hollow uprights respectively arranged on the two sides of the door, wherein the door comprises a first door plate, a second door plate and a third door plate sequentially arranged from down to up; the first door plate is fixedly connected with the lower parts of the two uprights; two guide rails, namely, a first guide rail and a second guide rail, are parallelly arranged in each of the two uprights; a first fixed pulley is arranged at the upper end of each first guide rail; a belt is arranged on each first fixed pulley; one end of each belt is connected with the second door plate, and the other end of each belt is connected with counter weigh blocks matched with the second door plate in weight; the second door plate slides up and down between the two uprights along the corresponding first guide rail through the corresponding belt; the second door plate and the third door plate can slide to the bottoms of the uprights along the corresponding guide rails to overlap with the second baffle. The aluminum counter weight door has the characteristics of being simple in structure and light and convenient to use.

Description

technical field [0001] The invention relates to an aluminum counterweight door for a large machine tool. Background technique [0002] The general size of the door of existing large-scale machine tool is bigger, and length reaches 3-5m, and height reaches 2m, and the general quality of such large-scale door is very heavy, but is difficult to open or close it with the power of one person. [0003] In order to solve the above problems, such doors generally use counterweights to make them easy to open manually, but there is another problem, that is, because the door area is too large, it needs to be made of stronger materials, otherwise it is easy to bend and damage. If the steel material with better strength is used to make it, the total mass of the door is too heavy. Even if a counterweight is used, it is still very laborious to open it by manpower. Contents of the invention [0004] The technical problem to be solved by the invention is to provide an aluminum counterweigh...

AI Technical Summary

Problems solved by technology

[0002] The doors of existing large-scale machine tools are generally large in size, with a length of 3-5m and a height of 2m. Such a large door is generally very heavy, but it is difficult to open or close it by one person.

[0003] In order to solve the above problems, this type of door generally uses a counterweight to make it easy to open manually, but there is another problem, that is, because the door area is too large, it needs to be made of stronger materials, otherwise it is easy to bend and damage

If it is made of steel with better strength, the total mass of the door is too heavy, and even with a counterweight, it is still very difficult to open it manually

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