2016年2月3日星期三

Structure and use of gear

combined worm reducer is a relatively sophisticated machinery, our purpose is to use it to reduce speed, thereby increasing the torque. Is rotated by the gear unit enclosed within a rigid shell of the gear, the worm rotates, the gear - is independently rotatable member composed of a worm, commonly used between the primary and the movable member of the working machine. Next we come together to look at the structure and conditions of use gearhead.
First, the structure of the gear unit
         Pole Spur is a block diagram of the Wuma Reducer, mainly by the gears, shafts and bearing assembly, box and gear accessories and other components. Case is an important part of the gear unit, which is part of the drive base. Case is usually made of gray cast iron manufactured for heavy-duty or impact load reducer can be used are steel casing. Single-piece production reducer are generally used welded steel box. In order to facilitate installation and removal, housing made along the horizontal axis split structure, the lid and the lower housing are connected together by bolts.
         As the hole on the cover in order to check the situation and the engagement provided to inject lubricating oil tank, the top cover is also equipped with aerators, which can be discharged in the exhaust chamber. In order to check the level of oil in the tank, in the box seat side with dipstick test, bottom of the box seat with a drain plug to release the oil tank.
Hook on the cover is used for lifting the lid, and lifting the entire gearhead, is cast out of the box seat lug. In order to facilitate open the lid on some of the gear unit standing there from cover screws. In order to ensure that when the removable lid, the lid and the box seat to ensure the positioning precision, and set up two positioning pins.
Second, the reducer working conditions
(1) working environment temperature -40 ℃ ~ + 40 ℃, when the ambient temperature is below 0 ℃, before the start of the lubricant should be preheated.
(2) High-speed shaft speed must not exceed the maximum value of the power specified in the table.
(3) allows instantaneous spike torque 2.7 times the rated torque.
(4) suitable for continuous, intermittent or short-term work system, reversible.
Applications (5) between the gear and the prime mover (motor common) and non-rigid couplings working machine, and it should be strictly in the axis line.

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