Induction heating for bearing installation of pipe opener
When installing the drill pipe and bearing of the pipe opener, pay attention to measuring the machining precision of the bearing and drill pipe. Bearing Installation Of Pipe Opener If it is within the normal range, it can be installed by heating and liquid nitrogen cooling. Violent installation and disassembly are strictly prohibited.
There are many heating methods, including electric plate heating, electric furnace heating, Bearing Installation Of Pipe Opener electric bulb heating, oil tank heating and sensory heating. Induction heating is an environmentally friendly and temperature controllable way. The following is a brief introduction:
Compared with the transformer in physics, the working principle of sensory heating is to Bearing Installation Of Pipe Opener install a primary coil with more turns and a secondary coil with less turns on the same iron core. The input to output voltage ratio is equal to the ratio of coil turns, while the energy remains unchanged.
Therefore, the secondary coil generates a large current at low voltage. For induction heating equipment, the main Bearing Installation Of Pipe Opener shaft bearing of the pipe opener is a short-circuit single turn secondary coil, which passes through large current under the condition of low AC voltage, resulting in great heat.
The heater itself and the yoke are kept at room temperature. Because this heating Bearing Installation Of Pipe Opener method can induce current, the bearing will be magnetized. The latter step is to demagnetize the bearing so that the pipe opener will not absorb the metal debris during pipe opening during operation. Therefore, the demagnetization process shall be carried out for the main shaft bearing of the pressurized pipe opener after induction heating.
The temperature difference between the Bearing Installation Of Pipe Opener bearing and the installation position of the bearing seat on the main shaft of the pipe pressurized hole opener depends on the grade of interference fit and the bearing size. Normally, The temperature of the bearing is 80 to 90 ℃ (144 to 162 ℉) higher than that of the main shaft, which is sufficient for installation.
However, ensure that the heating temperature of the bearing cannot exceed 125 ℃ (257 ℉), because the bearing material will undergo metallographic transformation,Bearing Installation Of Pipe Opener resulting in changes in diameter or hardness. Local overheating must be avoided. In particular, open flames such as alcohol blowtorch cannot be used to heat the main shaft bearing. Clean protective gloves shall be worn when installing the heated bearing.
Lifting can be used when installing the main shaft bearing of dn1000-dn2000 pipeline pressurized orifice (lifting) the machine is easy to install. Push the Bearing Installation Of Pipe Opener bearing to the installation position along the main shaft of the pipe opener to keep the bearing stationary and press until it fits firmly. This installation process requires proficiency and speed.
(1) Environmental protection
Inductive heating is a fast and controllable heating method. Compared with Bearing Installation Of Pipe Opener traditional heating stove heating, oil bath heating and torch heating, inductive heating is easy to produce oil fume, oil waste and harmful to human health. Inductive heating has the advantages of safety and environmental protection. It is applicable to the installation of bearings of equipment such as pipe opener and self climbing hydraulic pipe cutter and spare parts of other equipment.
(2) Temperature controllable
The electric induction heater has various uses and can be used for heating annular workpieces such as bearings, gears, mechanical bushings and connectors. As we all know, the correct installation can prolong the bearing life. Controllable inductive heating can prevent unnecessary damage and maintain the original pre lubrication. It is a tool for installation of sealed bearings.
(3) Heating is safe and controllable
Bearing heater, gear heater, induction disassembler and ring gear heater are produced and assembled based on the principle of inductive heating.
In the heating process, the CNC components can provide optimal control and automatically select effective power supply to ensure uniform and rapid heating without additional steps. There will be no explosion, discoloration or material surface depression in the heating process.