Structure frame of mixing equipment

The frame of the mixing equipment shall have enough support space for the mixing shaft to ensure that the deflection at the lower end of the mixing shaft is not large during operation The frame shall ensure that the output shaft of the transmission is aligned with the mixing shaft and the shaft seal device The frame bearing shall bear not only the radial load, but also the axial force generated by the agitator In most cases, an intermediate bearing device is also installed in the middle of the frame to improve the supporting conditions of the mixing shaft The rack can be divided into three types: no fulcrum rack, single fulcrum rack and double fulcrum rack 1 There is no supporting point for the rack without supporting point The mixing shaft system is supported by two bearing supporting points of the output shaft of the reducer It is suitable for small axial force or only radial force and even mixing load In some occasions such as small power and small axial load, the non fulcrum frame can be selected, but one of the following conditions must be met at the same time: ① the motor and transmission have two fulcrum points, and the bearing can bear the radial and axial load transmitted by the mixing shaft after accounting confirmation; ② At the same time, one of ① and ②-④ in the condition of selecting single fulcrum frame can form a pair of shaft supports 2 The single fulcrum rack is equipped with a support that can bear two-way load, and the axial load is all unloaded on the rack support, which can ensure the transmission quality of the reducer, extend the service life, and is suitable for all mixing operation occasions under uniform load and medium impact conditions When one of the following conditions is met, the single fulcrum frame can be selected: ① the motor or transmission has a fulcrum, which can bear the load of the mixing shaft after accounting; ② the bottom bearing is set as a fulcrum; ③ the shaft seal body is set with a bearing that can be used as a fulcrum; ④ in the mixing equipment, the middle of the mixing shaft is set with a guide bearing, which can be used as a fulcrum 3 Two independent supports are set in the middle of the double fulcrum frame frame, which is suitable for special occasions with heavy impact load or high requirements for mixing and sealing devices The output shaft of reducer and mixing shaft must be connected by elastic coupling When the single fulcrum or no fulcrum rack is not available, double fulcrum rack shall be selected.