A sealing method of motor shafts under rotations simultaneous with rectilinear motions with magnetic fluids between the motor shaft and the radial magnet with a single pole.

摘要

to an existing sealing device sealing device according to the invention is used in the food industry, etc., and special areas come to interfere with the smooth rotational movement and linear movement due to the friction of the axis of the sealing area to be. ; and disadvantages of the conventional sealing device, generates a wear of the seal due to friction resulting in increased frictional resistance reduction of a torque, rub, shaft sealing destroyed due to wear of the sealing device, generating a shortened life of the sealing part due to the destruction and ultimately the cause of pollution in the surrounding due to the flow of material to the sealing equipment and of this reason causes the damage. ; To use the special environment or especially the use of the liquid aside must use a special sealing device. ; reduction of torque caused by the use of conventional sealing device the sealing device is easy to wear is the replacement of the sealing device due to regular inspection would have been necessary when the sealing device is worn industrial productivity falls. ; The invention complements the above-mentioned problems of the conventional sealing device Configuring the exterior of the rotary shaft or the sealing operation part to use the inner and outer magnetic emulsion is magnetized with one pole each radial magnet (2) in order to fill the radial space of the magnet and a water-soluble or oil-based magnetic fluid chuksayi the magnetic fluid by the magnetic force of the magnet (2) is self-guided so as to act as a sealing device in the sealing pressure is applied to the rotating shaft or work area doemeuro strongly attracted by a magnet. The invention of the weak and the friction coefficient of the device there is little noise and vibration do not narrow the gap between the magnet and the sealing region, so the reduction of the magnet torque by the use of the magnetic fluid is substantially no reduction in torque as compared with the conventional sealing device The higher magnetic field strength of the sealing effect may constitute a strong or a weak pressure sealing device according to the application, so further increases. ; to configure the invention in a ring shape as shown in Fig. 1 the magnet The internal and external need radial magnets (2) are formed as a single pole, and installed in the groove of the outer housing (3) is not leaked to the outside is rotated at a high speed, even if the magnetic fluid doemeuro magnetic fluid is injected between the magnet and the operating rod not within, the pressure on the outside, even if there is no leakage in the sealing region of the magnetic fluid take (1) that is adsorbed with a strong force by the magnetic force of the radial magnetic sealing device (2) installed in the outer housing (3). ; However, the radial magnetic (2) and magnetic fluid (1) be in the range without departing from the limits of the suction force generated by the magnetic force, which acts between one another to ensure a stable sealing effect of the sealing device. In addition, the present invention (FIG. 4), (5) fixing bolt hole, simply by processing a conventional device (7), such as was to be equipped with the sealing device.