Inertial flywheel with adjustable moment of inertia

Technical Field

The invention relates to an inertia flywheel, in particular to an adjustable inertia flywheel inertia.

Background Art

In the power transmission system in the course of design and development of, the analog system the moment of inertia of the rotating components, the classic method is to adopt the inertial flywheel system, the tensor of the power transmission system is changed, then the need to change the different flywheel set the system to meet their needs, because the flywheel mechanism relatively troublesome replacement of the system, the flywheel set in order to simplify the adjustment of the rotational inertia of the system, but also develops "inertia flywheel device with adjustable rotary inertia", the Chinese Patent application number: 200810069635.1, the device in accordance with the work while optionally adjusting the rotational inertia of the flywheel, and adapted to different requirements of the power system, the devices are, however, also the moment of inertia of the manually adjusted to different flying wheel disk group can be achieved and, therefore, this device also has the deficiency of the adjustment is complicated rotating inertia.

Content of the invention

The invention aims at to the prior art, provides an adjustable inertia flywheel inertia, the inertia of the rotating inertia of the flywheel in adjustable, the user only needs to adjust the excitation current of the electromagnet the disc or disc on the electromagnet the number of the ring electromagnet is energized, the inertia can be adjusted the rotational inertia of the flywheel.

The technical scheme of the present invention are as follows:

Adjustable rotation inertia of the inertia flywheel comprises two disc electromagnet, inertia flywheel and the fly wheel shaft, wherein the inertia flywheel is of hollow cylindrical structure, is fixed on the flywheel shaft to the shaft center of the inertia flywheel, the inertia flywheel is filled with magneto-rheological fluid, and the two disc electromagnet are symmetrically fixed in an inertia flywheel on the two bottom faces, the outer diameter of disc electromagnet is composed of a plurality of nested and concentric to the ring electromagnet, each ring on the toroidal surface of the magnetic pole of the electromagnet is not less than 2 oppositipolar, the electromagnet of the disc with the center of the through hole of the flywheel shaft;

The function of this invention is realized like this: disc electromagnet is not energized, in the inertia flywheel magneto-rheological fluid in a liquid state, when the flywheel shaft when rotating to drive the inertia of the flywheel housing, in accordance with Newton's 1st law (law of inertia), its internal magnetic rheological fluid will remain in a stationary state, and when the flywheel shaft to drive the inertia flywheel of the rapid rotation of the shell, due to the presence of resistance effects of friction, inertia flywheel of the inertia of the flywheel magneto-rheological liquid under the drive of the shell can only slowly rotate, therefore, at the moment of inertia of the inertia flywheel is relatively small; the disc after the electromagnet is energized, because of the inertia flywheel into a semi-solid state magnetorheological fluid, when the flywheel shaft to drive the inertia flywheel during operation, the rotating shell, with the inertia of the flywheel housing in a semi-solid state of the interior of the friction resistance of the magneto-rheological liquid is rapidly increasing, to make the inertia of the flywheel housing and its internal magnetic rheological fluid as a whole, therefore, when the flywheel shaft to drive the inertia flywheel during operation, the rotating shell will directly drives the inner part of the semi-solid state is rotated together with the magneto-rheological liquid, therefore, at the moment of inertia of the inertia flywheel is relatively large; the disc through each ring of on the electromagnet excitation current of the electromagnet or the number of energized ring electromagnet, can be changed in the inertia flywheel and the solidification state of the magneto-rheological liquid in a cured state the amount of the magnetic rheological fluid, and the inertia flywheel will change with the interior of the housing of the magneto-rheological liquid the size of the friction resistance between the, thus changing the inertia the rotational inertia of the flywheel therefore, with the existing " inertia compared with the inertia flywheel device with adjustable, adjustable rotational inertia of the present invention the moment of inertia of the inertia flywheel is changing and adjustment are very simple and convenient

Description of drawings

Figure 1 is a a structure diagram of the invention

Figure 2 is A to the view of fig. 1

Figure 3 is a schematic diagram cross-section, in the Figure of two directions the inertia flywheel in Figure 1 two of the discs in the blank inside the electromagnet N of the circular arc section of the pole, the pole S grid circular arc section.

Figure 4 is a schematic diagram of the Figure 1.

Mode of execution

See Figure 1, Figure 2 and Figure 3, the moment of inertia is adjustable inertia flywheel, comprising two disc electromagnet 3 and 4, an inertia flywheel 1 and tray 8, inertia flywheel 1 is of hollow cylindrical structure, tray 8 is fixed to the inertial flywheel 1 on the axis of, the inertia flywheel 1 is filled with magnetic changes the liquid flow 2 ; refer to Figure 1 and Figure 3, disc electromagnet 3 by 3 a of the outer diameter of the concentric ring electromagnet 31, 32 and 33 is nested and, disc electromagnet 4 also is composed of 3 a of the outer diameter of the concentric ring electromagnet 41, 42 and 43 and a nesting, each ring of the toroidal surface of the electromagnet on the magnetic pole number of 4 oppositipolar, the electromagnet of the disc 3 and 4 with the center of the fly wheel shaft 8 through the hole 13, disc electromagnet 3 and 4 is the same for all of the parameters, and is symmetrically arranged in the inertia flywheel 1 on the two bottom faces, and opposite poles. Disc electromagnet 3 and 4 each ring of the excitation coil on the electromagnet through the outgoing line 15, leading to the brush set 7, and then through an electric brush and assembling frame 12 of the lead wire 11 and the control power supply 10 is connected, tray 8 through the bearing 6 is fixed on the base 14 of the bracket 5 upper, tray 8 is fixed with the coupling of the two ends of the 9.

See Figure 4, Figure 2 and Figure 1, when the invention is used, an inertia flywheel 1 is adjusted such that the moment of inertia of the: adjusting control power supply 10 can make the paired ring-electromagnet 31 and 41, 32 and 42 and 33 and 43 is energized separately or at the same time, the inertia flywheel 1 of magnetorheological changes the liquid flow in 2 the two paired between the circular electromagnet changes the fluid half solidification that a portion of the magnetic flux, thus can make the inertia flywheel 1 of the magneto-rheological liquid in 2 different form the outer diameter of the annular semi-solid 21, 22, 23, this kind of different outer diameter of the annular semi-solid 21, 22, 23 in the inertia flywheel 1 under the drive of the shell, will produce different rotational inertia, so as to realize the adjusting moment of inertia.