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我公司4～5 t叉车长期以来存在内燃机罩开启机构开、关费力的症状。每次开启时,必须用1只手先压住机罩,另1只手用力拉动开启拉索才能打开机罩。用户反映在使用一段时间后,气弹簧容易失效,机罩无法正常打开。经调研,决定对其结构(见图1)进行改进。1.改进前开启机构的缺陷(1)气弹簧位置不合理气弹簧与水平方向的夹角为23°,造成气弹簧向上的分力远远大于机罩的重力,以至每次开启时都要给1个向下的力,才能打开机罩。关闭机罩时,要克服气弹簧向上的分力才能关闭。
My company 4 ~ 5t forklift has long existed in the internal combustion engine hood to open the agency to open, off laborious symptoms. Each time you turn on, you must first press the hood with one hand, and pull the cable with the other hand to open the hood. Users reflect the use of a period of time, the gas spring is easy to fail, the hood can not be opened normally. After investigation, decided to improve its structure (see Figure 1). 1. Improve the defect of the front opening mechanism (1) the gas spring position is not reasonable The angle between the gas spring and the horizontal direction is 23 °, causing the component force of the gas spring to be far greater than the weight of the hood, even when it is turned on Give a downward force to open the hood. Close the hood, to overcome the gas spring upward force to close.