RU1775807C - Electromagnetic torque motor - Google Patents

Abstract

Usage: in electromechanical and automatic control systems. The inventive end magnetoelectric torque motor contains a non-magnetic housing 1, stator winding coils 2, a stator toroidal magnetic wire 3, a non-magnetic side cover 4, a non-magnetic rotor disk rim 5, a permanent magnet 6, a rotor magnetic circuit 7, a fixed shaft 8, an adjustment ring 9, thrust cover 10, bearing 11, hollow shaft 12. 1 cp f-ly, 2 ill.

Description

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The invention relates to electrical engineering, in particular to magnetoelectric torque motors. Such motors are widely used in electromechanical and automatic control systems.

The aim of the invention is to increase the manufacturability of the design and expand the functionality of the engine.

Figure 1 presents a torque motor, a longitudinal section; on fmg. 2-also, a cross section.

The engine contains a non-magnetic housing 1, stator winding coils 2, a stator toroidal magnetic circuit 3, a side non-magnetic cover 4, a non-magnetic rotor disk rim 5, a permanent magnet 6, a rotor magnetic circuit 7, a fixed shaft 8, an adjustment ring 9, a thrust cover 10, a bearing 11 , hollow shaft working 12.

A left toroidal magnetic circuit 3 is installed on the fixed shaft 8 with stator winding coils 2 previously laid in its grooves and fixed (for example, with screws) relative to shaft 8 and non-magnetic housing 1. The right toroidal stator 3 magnetic circuit with right coil winding 2 is similarly mounted and fixed on the shaft 8 and in the housing 1 in the required position relative to the left stator.

Next, a left adjusting ring 9 is mounted on the left end of the shaft 8, a bearing 11 is inserted, pressed onto the left hollow working shaft 12, on which a non-magnetic rim of the rotor disk 5 with magnets is fixed. 6 and magnetic conductor 7. Having fixed the left cover 10, check the size of the left end working air gap with the probes and fix the left side non-magnetic cover 4 on the housing 1.

Similarly, on the right end of the shaft 8, the right adjusting ring 9, the bearing 11 with the right non-magnetic rim of the rotor disk 5, magnets 6 and the magnetic conduit 7 are installed. Next, fixing the right thrust cover 10, check the size of the right end gap with the probes and install the right one on the housing 1 non-magnetic side cover 4.

The principle of operation of the proposed engine is similar to that adopted as a prototype of a torque motor of a face design and is as follows.

The permanent magnet of the left rotor disk creates an axial working magnetic flux that passes through the end

the working gap and through the tooth zone of the left stator enters the toroidal magnetic circuit 3 of the left stator and the passage along it through the tooth and the second working gap

the left stator hits a magnet of opposite polarity of the same (left) rotor disk and is closed by the magnetic circuit 7 of the left rotor to the original permanent magnet 6.

0 The path of the working magnetic flux of the right disk of the rotor is similar (see figure 1, 2). The current passing through the windings of the coil type of 2 stators creates electromagnetic moments of the left and right rotor disks,

5 which may coincide or differ in both magnitude and direction. This causes the output MMT hollow shafts 12 to be mechanically independent of one another and rotate at the desired frequency. For the engine to operate in the valve motor mode, it is necessary to have two rotor position sensors monitoring the positions of the right and left rotor disks.

5. When tuning the engine in order to obtain identical performance characteristics, mutual movement of the left and right stators is possible and their fixation relative to the housing, for example, by means of screws. For

0 settings of end clearances, it is necessary to coordinate the sizes of the adjusting rings with the tolerances on the linear dimensions of the remaining mating parts.

Claims (2)

The presence of two rotor disks, rotating independently and counter to each other, improves the thermal state of the engine by increasing the heat transfer coefficient. The claims 0 1. An end-face magnetoelectric torque motor containing two stators with toroidal magnetic circuits and coil windings, a disk rotor with permanent magnets with axial magnetization and alternating polarity, bearings with outer and inner rings and a rotor shaft, while one of the stators is rigidly mounted in a housing, characterized in that, in order to increase 0 technological design and expanding the functionality of the engine, it is equipped with a second disk rotor with a shaft similar to the first rotor, a fixed hollow axis with a hub and adjusting rings, while the rotors are coaxial and mounted with the possibility of mutual rotation, the rotor shafts are made hollow and placed on outer rings of bearings that are worn at both ends on a fixed hollow the axis, the first of the stators, is fixedly mounted on the hub of the hollow axis, and the second stator is rotatably mounted relative to the first, the adjusting rings are placed on the fixed axis between the end surfaces of the hub and the inner rings of the bearings. 2. The engine is characterized by the fact that, in order to improve the electromagnetic and thermal characteristics, the toroidal magnetic cores are made with trapezoidal teeth and the frame, and the height of the frame exceeds the height of the teeth by two heights of the stator winding. / 1-A 6 3 in bb