Liming reducerGenerally used for low-speed and high-torque transmission equipment, the motor, internal combustion engine or other high-speed running power passes through the gear with a small number of teeth on the input shaft of the reducer to mesh with the large gear on the output shaft to achieve the purpose of deceleration. The general reducer There are also several pairs of gears with the same principle to achieve the desired 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 that uses a gear speed converter to reduce the number of revolutions of the motor to the required number of revolutions and obtain a larger torque. The main structure of Liming reducer?
The box of Liming reducer is an important component of the reducer. It is the base of transmission parts and should have sufficient strength and rigidity. The box body is usually made of gray cast iron, and cast steel box body can also be used for the reducer with heavy load or impact load. In order to simplify the process and reduce the cost of the reducer produced by a single body, a steel plate welded box can be used.
2. Reducer accessories
In order to ensure the normal operation of the reducer, in addition to paying attention to the structural design of gears, shafts, bearing combinations and box bodies, consideration should also be given to filling and draining the lubricating oil pool of the reducer, checking the oil level, processing and Reasonable selection and design of auxiliary parts and components such as accurate positioning of box cover and box seat during disassembly, assembly and maintenance, and hoisting.
3. Combination of gears, shafts and bearings
The pinion and the shaft are made into one body, called a 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 gear root circle is df , When df-d≤6——7mn, this structure should be selected. And when df-d>6—7mn, the structure where the gear and the shaft are separated into two parts, such as the low-speed shaft and the large gear, is selected. At this moment, the gear is connected with the shaft with a fixed flat key in the circumferential direction, and the parts on the shaft are axially fixed by the shaft shoulder, the shaft sleeve and the bearing cover. Deep groove ball bearings are selected for both shafts.
Apr 11, 2022
Apr 06, 2022