The Liming reducer is generally used for low-speed and high-torque transmission equipment. The power of the motor, internal combustion engine or other high-speed operation is meshed with the large gear on the output shaft through the gear with a small number of teeth on the input shaft of the reducer to achieve the purpose of deceleration. The gear reducer will also have several pairs of gears with the same principle to achieve the ideal deceleration effect. The ratio of the number of teeth of the large and small gears is the transmission ratio. The reducer is a power transmission organization. Decelerate to the required number of revolutions and obtain a larger torque structure. The main structure of Liming reducer?
1, the box
The casing of Liming reducer is an important component of the reducer. It is the base of the transmission parts and should have sufficient strength and rigidity. The casing is usually made of gray cast iron, and can also be used for reducers with heavy or impact loads. The cast steel box is selected. For the reducer produced by a single unit, in order to simplify the process and reduce the cost, the steel plate welded box can be selected.
2, reducer accessories
In order to ensure the normal operation of the reducer, in addition to paying sufficient attention to the structural design of gears, shafts, bearing assemblies and casings, it is also necessary to consider filling and draining the lubricating oil pool of the reducer, checking the oil level, machining and Reasonable selection and design of auxiliary parts and components such as accurate positioning of box cover and box seat during disassembly and maintenance, and hoisting.
3, gear, shaft and bearing combination
The pinion and the shaft are made into one piece, which is called the gear shaft. This structure of the Liming reducer is used when the diameter of the gear is not related to the diameter of the shaft. If the diameter of the shaft is d, the diameter of the root circle of the gear is df. Then when df-d is less than or equal to 6-7mn, this structure should be selected. When df-d>6-7mn, the structure in which the gear and the shaft are separated into two parts, such as the low-speed shaft and the large gear, should be selected. At this moment, the gear and the shaft are connected with a circumferentially fixed flat key, and the parts on the shaft are axially fixed with shaft shoulders, shaft sleeves and bearing caps. Both shafts use deep groove ball bearings.