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我厂原来均用自制的摇杆吊框机构的筛砂机、摇杆机构磨损快、噪声大、效率低、结构不太合理,摇杆使用寿命为2-3个月,更换时要机加工又要电焊等工序,严重影响了生产的正常进行。针对原来筛砂机存在的缺点,我们于85年设计制造了一种筛砂机(见图1)。设计时试图从以下三个方面予以改进。1)由于铸造车间环境较差,超负荷现象比较严重,所以机架及其它零件要有足够的刚度,同时也能防止产生噪声。2)增加一根送砂皮带。3)对吊筛框装置进行改进,试用橡胶布带代替摇杆机构。
The original use of our factory are made of rocker hanging box mechanism sand screen machine, rocker body wear fast, noise, low efficiency, the structure is not reasonable, rocker life of 2-3 months, when the replacement machining Also welding and other processes have seriously affected the normal production. In response to the shortcomings of the original sand screening machine, we designed and manufactured a sand screening machine in 1985 (see Figure 1). Design time trying to improve from the following three aspects. 1) As the casting shop environment is poor, the phenomenon of overload is more serious, so the rack and other parts have sufficient rigidity, but also to prevent noise. 2) Add a sand belt. 3) to improve the hanging screen frame device, try rubber band instead of rocker mechanism.