Reciprocable electromagnetic motor
FIELD: electrical engineering.
SUBSTANCE: electromagnetic motor contains cylindrical induction coil consisting of magnetic core and excitation winding located in its circular groove; forward and reverse stroke armatures opposite to each other in coaxial relationship; return spring installed in the axial channel formed by end blind grooves in forward and reverse stroke armatures. Forward and reverse stroke armatures are made as disc and cylindrical parts interconnected rigidly. Cylindrical parts have diameters of different values. In cylindrical part of the forward stroke armature there is an internal blind groove which diameter is bigger than the diameter of cylindrical part of the reverse stroke armature, and it is capable to move along inner grove of the forward stroke armature. Disc parts of the armatures are oriented towards different poles of cylindrical induction coil. In the reverse stroke armature there is an axial bore with axial rod of the forward stroke armature located in it.
EFFECT: reduction of vibration level for electric motor housing, increase in performance and economical operation.
The invention relates to the field of electrical engineering, namely to electric machines of the reciprocating simultaneously oncoming traffic and actuators operating on the basis of them.
Known electromagnetic motor comprising a cylindrical stator winding, disc anchors, two identical working air gaps, recoil, casing and two coaxial cylinders fixed to the inner plane of the disk, resulting in movement of the working body of the press (As the USSR №855888, IPC NC 33/02, publ. 15.08.1981 year). This engine is designed for direct military action and its stator is fixed on the reverse impact forces on the engine base or a special bed on which it is installed.
The disadvantage of this analogue is the lack of use in a small Electromechanical devices and manual tools, because the engine through the direct work has the reverse impact strength of bestowal, this creates a strong vibration motor housing and complicated structure.
Also known linear electromagnetic actuator press (RF Patent No. 2193943, IPC B21J 7/30, WV 1/42, publ. 10.12.2002,), where the electromagnetic motor includes a stator placed in it by winding and an anchor, the guide casing with a focus and a return spring. The anchor consists of two moveable is x relative to each other parts. One part is a Cup, and the second is located inside a cylindrical glass core. The cross-sectional area of the glass is less than the cross-sectional area of a cylindrical Cup. In the upper part of the Cup and core are the shoulder. Anchor in the initial position is set with the condition that the distance between the bead core and focus of the guide casing is less than the magnitude of the stroke of the armature.
The disadvantage of this analogue, as well as the previous one, is the lack of the possibility of its use in hand power tools due to strong vibration.
Also known linear motor of the reciprocating motion (A.S. USSR №1725330, IPC NC 33/00, H01F 7/16, publ. 07.04.1992 g)containing the stator magnetic core and the coil in the cavity where the anchor with an axial blind hole, in which is placed an adjusting screw for regulating the amplitude of the stroke of the motor armature, a return spring.
The disadvantage of this analogue is also the lack of ability to use hand / power tools due to strong vibration.
The closest in technical essence and the achieved effect is electromagnetic actuator reciprocating motion (A.S. USSR №1453544, IPC NC 33/02, publ. 23.01.1989 g)containing a cylindrical inductor, consisting of m is of gnathopod and winding, located in the annular groove of the magnetic circuit, while the inner cylindrical surface of the cylinder formed by the inner cylindrical surfaces of the poles of the magnetic circuit and windings, and coaxially located movable anchor, consisting of two parts, containing ferromagnetic and electrically conductive elements, a return spring and two identical parts that complement one another to a full cylinder, each of which consists of ferromagnetic and attached to its end placed inside the inductor, electrically conductive elements, the anchor is located symmetrically relative to the coil, a return spring mounted in the axial channel of the anchor formed by a blind end grooves in its parts, and is backed by their ends on different parts of the anchor.
The disadvantage of the prototype is inefficient magnetic system, because the anchor is not solid ferromagnetic body, and consists of two longitudinally divided parts, oriented counter to their movement, so that the magnetic flux of the winding is divided into the moving parts, which reduces the efficiency of the engine. Furthermore, the design of the prototype is far from practical application and requires serious revision.
The present invention is to reduce the level of vibration elektrodvigatel what I increased productivity and efficiency.
The technical result is to increase the level of safety in the operation of the linear electromagnetic motor of the reciprocating motion, to reduce the power consumption due to pulsed electromagnetic power of the engine, to increase productivity and efficiency.
This object is achieved in that the electromagnetic motor of the reciprocating movement, containing a cylindrical inductor consisting of a magnetic core and winding, placed in the annular groove of the magnetic circuit, coaxial counter-spaced anchors backward and forward movement, a return spring mounted in the axial channel formed by end blind grooves in the anchor forward stroke and the anchor reverse, according to the proposed technical solution, the anchor of the forward stroke and the anchor reverse made in the form of rigidly interconnected disk and cylindrical parts, while the cylindrical part have an excellent largest diameter, and the cylindrical portion of the armature forward stroke has an internal blind groove, the diameter of which is larger than the diameter of the cylindrical part of the anchor-reverse, which is arranged to move inside the groove of the anchor forward stroke, the disk part of the Yak the ray directed to different poles of the cylindrical inductor, while at anchor forward stroke has an axial rod and anchored reverse has an axial opening in which is movably axial rod anchors forward stroke.
Comparative analysis with the prototype shows that the claimed electromagnetic motor of the reciprocating motion differs in that it contains two counter-directed ferromagnetic anchor of the same mass, where the disk portion of the anchor is directed to a different end poles of the cylindrical magnetic core of the inductor, while the axial rod anchors forward stroke passes through the axial hole of the anchor reverse.
Thus, the claimed electromagnetic motor of the reciprocating motion meets the criteria of the invention of "novelty."
The comparison of the proposed solutions not only prototype, but also with other technical solutions in this field of technology is not allowed to reveal in them the features distinguishing the claimed solution to the prototype, and the introduction of two counter-directed magnetic anchors and axial counter-movement of the armature of a direct stroke in a through axial hole anchors reverse allowed to make a conclusion about the technical solutions according to the criterion of "significant differences".
The invention is illustrated by drawings, where figure 1 presents prodol the first section of the electromagnetic motor of the reciprocating movement, where the positions indicated:
1 is a cylindrical magnetic core of the inductor;
2 - excitation winding;
3 - anchor forward stroke;
4 - anchor reverse;
5 - disc portion of the anchor forward stroke;
6 is a cylindrical portion of the armature forward stroke;
7 - disk part of the anchor reverse;
8 is a cylindrical portion of the armature reverse;
9 - internal blind groove anchors forward stroke;
10 is an axial rod anchors forward stroke;
11 - a through axial hole anchors reverse;
12 - end blind groove anchors the forward and reverse;
13 - recoil;
14 - pole inductor for anchors forward stroke;
15 - pole inductor for anchors reverse.
The electromagnetic motor of the reciprocating motion comprises a cylindrical inductor consisting of a magnetic core 1 with the excitation winding 2, placed in the annular groove of the magnetic circuit, two coaxial counter located anchor forward stroke 3 and reverse 4, which are made in the form of rigidly interconnected disk part 5 and the cylindrical part 6 of the anchor forward stroke 3 and the disk portion 7 and the cylindrical part 8 of the armature backstop 4 (figure 1). Cylindrical portions 6, 8 of the anchor forward stroke 3 and anchors reverse 4 respectively have different size diameters. The cylindrical part 6 of the armature of the direct Hoda has an internal blind groove 9 depth 2δ, a diameter larger than the diameter of the cylindrical part 8 of the armature backstop 4, and provides a gap between them. The cylindrical part 8 of the armature backstop 4 is arranged to move in the inner hollow groove 9 of the armature forward stroke 3. Anchored forward stroke 3 has an axial rod 10 and anchored reverse 4 has a through axial hole 11 which is movably axial rod 10 anchors forward stroke 3. The diameter of the axial rod 10 anchors forward stroke 3 and the diameter of the through hole 11 of the armature backstop 4 made, for example, with a running landing. Both anchors in the internal cylindrical parts have mechanical deaf grooves 12, in the axial channels which has a return spring 13. Disk part 5, 7 anchors forward stroke 3 and reverse 4 respectively directed to different poles 14, 15 of the cylindrical magnetic core of the inductor 1 and separated from it by a distance δ, equal to the gap. Internal blind groove 9 of the armature forward stroke 3 has a depth not less than twice the working gap 2δ. Anchor forward stroke 3 is equal to the weight of the anchor reverse 4.
The electromagnetic motor of the reciprocating motion is as follows. When applying a pulse voltage to the field winding 2, a magnetic flux, which causes at the same time a counter is offered by the movement of the anchors forward stroke 3 and reverse 4, while the anchors forward stroke 3 and reverse their 4 disc parts 5 and 7 simultaneously attracted to the poles 14 and 15 of the cylindrical magnetic coil 1, is oncoming traffic anchor. When the movement of the cylindrical part 8 of the armature backstop 4 is included in the inner blank groove 9 of the armature forward stroke 3. In the oncoming traffic anchor forward stroke 3 and reverse 4 is compressed return spring 13 located in the remote end of the grooves 12 of the armature 3 direct and reverse 4, wherein the anchor reverse 4 moves its end-to-end axial hole 11 on the axial rod 10 anchors forward stroke 3. By removing the voltage from winding 2 anchor forward stroke 3 and the anchor reverse 4 under the force of the compressed return spring 13 returns to its original position. When applying a series of voltage pulses to the excitation winding 2 of the electromagnetic motor of the reciprocating movement operates in pulsed mode without vibration.
The presence of anchors forward stroke 3 and reverse 4 having a cylindrical 6, 8 and the disk part 5, 7, respectively, allows you to fully utilize the useful magnetic flux passing through both the armature 3, 4 and the cylindrical magnetic core of the inductor 1, creating the greatest force on the axial rod 10 anchors forward stroke 3. Furthermore, the design strategyplanning movements anchor eliminates strong vibration of the engine and increases its reliability.
Running the anchor forward stroke 3 is equal to the weight of the anchor reverse 4 contributes to the fact that when applying a pulse voltage to the field winding 2, the magnetic flux and the mechanical force of attraction of the armatures 3, 4 is uniformly distributed on the anchor forward stroke 3 and reverse 4, which also helps to reduce vibration of the engine and increases its reliability.
Thus, the increased level of safety in the operation of the electromagnetic motor of the reciprocating motion, reduced power consumption due to its pulsed power, increases productivity and efficiency, as well as improving the environmental friendliness of the workplace.
The electromagnetic motor of the reciprocating movement, containing a cylindrical inductor consisting of a magnetic core and winding, placed in the annular groove of the magnetic circuit, coaxial counter-spaced anchors backward and forward movement, a return spring mounted in the axial channel formed by end blind grooves in the anchor forward stroke and the anchor reverse, characterized in that the anchor forward stroke and the anchor reverse made in the form of rigidly interconnected disk and cylindrical parts, while the cylindrical portions have different size diameters, and qi is andrijeski part of the anchor forward stroke has an internal blind groove, a diameter larger than the diameter of the cylindrical part of the anchor-reverse, which is arranged to move inside the groove of the anchor forward stroke, the disk portion of the anchor is directed to different poles of the cylindrical inductor, while at anchor forward stroke has an axial rod and anchored reverse has an axial opening in which is movably axial rod anchors forward stroke.
FIELD: electrical engineering.
SUBSTANCE: linear drive 1 comprises stator 2 accommodating slide 7 reciprocating there inside along axis 3. Note here that stator 2 incorporates magnetising core 4 with poles 5, 6. Note also that slide 7 comprises assemblage of alternating opposite-polarisation magnets 22, 23 arranged one after another along axis 3. Said stator 2 comprises at least two drive coils 16, 20 arranged opposed relative to slide 7. Besides said magnets 22, 23 of said slide 7 feature length L2 along axis 3 that corresponds, in fact, to sum of poles widths B1 and distance A1 between poles 5, 6. Skewed surface 9 of supports 8, 10 or appropriate selection of length of magnets 22, 23, slide 7, pole width B1 and distance A1 between poles 5, 6 improve control or adjustment of reciprocation of rotor 7.
EFFECT: higher accuracy and efficiency of control, power savings.
18 cl, 5 dwg
SUBSTANCE: in design of the proposed unipolar machine (UM) there are no conventional sliding brush contacts, and several disks can be easily connected in series to its electric anchor chain by means of electrically conducting belts and hollow cylinders with common magnetic system. At that, rotation shafts in the proposed UM always rotate to opposite sides, which can be provided either with individual external motors, or by any common reversing mechanism. Proposed direct current UM with two shafts can operate both in generator mode, and in motor mode.
EFFECT: sufficient increase of wear resistance, improvement of electromechanical characteristics and noticeable increase of operating voltage; enlarging application field of unipolar direct current machines.
FIELD: electrical engineering.
SUBSTANCE: magnetoelectric machine rotor system consists of two coaxial rotors. The external (outer) rotor is designed in the shape of a hollow cylinder of high-strength, non-magnetic and electrically non-conductive material with constant magnets uniformly fixed thereon; the magnets are magnetised in a radial direction and have alternating polarity. There are gaps between the external rotor magnets wherein the retaining elements are positioned made of a non-magnetic and electrically non-conductive material. The internal rotor is designed in the shape of a shaft of a magnetically soft material, toothed on the outside, the internal rotor teeth number equal to that of the external rotor permanent magnets. The internal rotor radial bearings are positioned outside the external rotor bearings. The external rotor axial bearing is represented by axial magnetic forces of interaction between the permanent magnets of the external rotor, the stator core and the shaft.
EFFECT: provision for the rotor system rotors strength margin and increasing the proper frequency to a value in excess of rotation rate.
16 cl, 3 dwg
SUBSTANCE: invention relates to the field of electrical engineering and transport machine building and may be used in development of mechanisms, in which it is necessary to change torque and rotations of an output shaft of an electric motor. According to this invention, in an electric motor a differential gear is used as a converter of transmission ratio, and the gear comprises one input and two outputs, the input of which is connected to a rotor of the electric motor, one of outputs, to which a high torque is sent, is connected with an output shaft, and the second output is connected with the second rotor, which is inductively connected with the rotor of the electric motor, and in case of their mutual rotation, it generates electric energy, and force arising at the same time, by changing which, through variation of inductive connection between rotors, the speed up rate may be controlled, as well as output shaft rotation speed, partially blocking the gear, aims to reduce mutual relative opposite rotation of the electric motor rotor and the second rotor. The second rotor is also connected with a speed-up coupling, which is connected with the body by a response part, and preventing rotation of the second rotor to the side opposite to direction of the electric motor rotor rotation.
EFFECT: multiple increase of electric motor torque in case of speeding.
SUBSTANCE: invention is referred to electric engineering and power engineering, in particular, to electromagnetic motors. The electromagnetic motor comprises a rotor arranged in the form of a shaft installed as capable of rotation of at least two discs installed on the shaft, with permanent magnets arranged along their periphery, a stator comprising electromagnets installed as capable of interaction with permanent magnets, besides, the permanent magnets are arranged in the form of cylinders, planes of ends of which are located in the radial plane of each disc, besides, permanent magnets of the first and second discs face each other with poles, and the stator comprises electromagnets in the form of solenoids without magnetic conductors installed between discs of the rotor, two start-up electromagnets, comprising non-linked magnetic conductors and installed oppositely to a permanent magnet, of any of rotor discs, a contactless induction switch installed on the stator opposite to any of permanent magnets of rotor discs with the possibility of interaction with each of permanent magnets arranged on one of rotary discs of the rotor, at the moment of permanent magnet passing through a zone of sensitivity of a sensor part of the contactless induction switch.
EFFECT: increased capacity of a motor.
SUBSTANCE: invention relates to automotive power plants. Proposed power plant comprises thermal engine and rotary machine. Rotary machine comprises stator, first and second rotors. One of the latter is coupled with thermal engine. Another rotor is coupled with. Stator incorporates several armatures to generate rotary magnetic field. First rotor comprises some magnetic poles. The latter are made up of multiple magnetic poles arranged with clearance in direction along the circle. Every two adjacent poles feature unlike polarities. Second rotor comprises some elements from magnetically soft material. The latter are arranged between armatures and magnetic poles. Relationship between number of armature poles, magnetic poles and elements from magnetically soft material satisfy the following condition: 1:m:(1+m)/2, where m ≠ 1,0.
EFFECT: higher efficiency.
17 cl, 31 dwg
SUBSTANCE: electric motor (1) consists of the first structure (4) that includes some magnetic poles formed by a certain sum of magnetic poles (4a) organised in certain direction and arranged in such a way that every two neighbouring magnetic poles (4a) have polarity that differ from one another, the second structure (3) that includes some armatures located opposite to the said magnetic poles for generating movable magnetic fields moving in certain direction between the row of armature and row of magnetic poles under the influence of certain sum of armature magnetic poles generated in the armatures (3c - 3e) at electric power supply to them, and the third structure (5) that includes a row of elements from magnetic-soft material formed by certain sum of elements (5a) from magnetic-soft material organised in certain direction with a one gap in relation to the other and arranged in such a way that a row of elements from magnetic-soft material is located between a row of magnetic poles and a row of armatures, number of magnetic poles (4a) and number of elements (5a) from magnetic-soft material is determined by the ratio 1 : m : (1 + m)/2 (m ≠ 1.0).
EFFECT: decrease of dimensions and manufacturing cost of the said electric motor with simultaneous provision of possibility to increase freedom degree at its designing.
6 cl, 19 dwg
SUBSTANCE: method is realised by variation of terminal electric machine stator and rotors design variation, and also by using non-magnet and dielectric materials in bearing structures of the machine, which make it possible to reduce losses from occurrence of vortex currents. Application of up-to-date non-magnet and dielectric materials with sufficient heat resistance and strength exceeding strength of metals, and also with lower volume weight in manufacturing of electric machines will make it possible to wider use terminal electric machines of the proposed design in aircraft building.
EFFECT: improved manufacturability of terminal machines production, higher stiffness of their main parts and increased power indices of a terminal electric machine.
FIELD: electrical engineering; engines.
SUBSTANCE: applied engine has metal armature bodies with coils on them and magnets placed in numerous levels. The magnetic conductors with their concentric placement form a rotor, according to this invention. The rotor includes numerous cylindrical magnetic conductors placed in many levels in radial direction, and numerous magnets attached to their respective conductors with alternation of the magnets' polarity in relation to each other in the peripheral direction. The stator has metal armature bodies turned to their respective magnetic conductors and numerous coils turned to magnets. Furthermore, an actuating mechanism for engaging the abovementioned engine is suggested, including the brake disc and the calliper. The brake disc is fixedly connected with the engine's rotor. The calliper is installed on one side of the brake disc to limit the brake disc rotation.
EFFECT: increase in the engine's power and in the power of the actuating mechanism for the said engine, which at the same time improves the mass and dimensions parameters for both devices.
19 cl, 16 dwg
SUBSTANCE: in a proposed electrical machine, comprising a device for development of a magnetic field, where an inductor is represented by ferromagnetic cores with electric coils, and devices for conversion of one type of energy into another one, according to the invention, the device for development of the magnetic field is made as a separate unit in the form of a flange with concentric flanges on the wall made of non-magnetic and dielectric materials. In through radial slots made on flange collar rims, in a certain sequence, ferromagnetic cores are fixed with electric coils, which form pole pairs of the electrical machine. Stiffness of ferromagnetic cores fixation with electric coils in slots is ensured by a pressing cover, which is also made from non-magnetic and dielectric material. The device to convert one type of energy into another one consists of two rotors. One rotor is installed in the inner part of the device to develop a magnetic field and interacts with a so called main magnetic flux Φm and interacts with a so called magnetic leakage flux Φl.
EFFECT: higher efficiency of electrical machine operation due to using a magnetic leakage flux Φl in electric motors to develop a torque Mt, and in current generators - for production of electric energy.
SUBSTANCE: electrical machine of double rotation includes stator, rotors installed so that they can rotate, the first blades that are connected to the first rotor and are rotated with the first rotor in the first direction, the second blades that are connected to the second rotor and are rotated with the second rotor in the second direction, shafts of rotors, and bearings that allow rotation of shafts, load-carrying housing; the first blades and the second blades are arranged outside the housing; stator is made in the form of individual teeth with winding without yoke, and rotors are made in the form of concentric sleeves from material with high magnetic permeability, which are located on outer and inner side of stator; on sleeves there fixed are radially magnetised constant magnets; polarity of neighbouring constant magnets alternates; on each tooth there located is concentric winding insulated from housing; number of poles of the first rotor is equal to the number of periods of the first fundamental harmonic of magnetomotive force of stator winding; number of poles of the second rotor is equal to the number of periods of the second fundamental harmonic of magnetomotive force of stator winding; rotors are not attached to each other and directions of their rotation are opposite.
EFFECT: improving reliability of electric machine of double rotation at simultaneous exclusion of transmission to its stator of reactive moment and providing the possibility of using air flows with low linear speeds for operation of this machine in generator mode.
9 cl, 3 dwg
SUBSTANCE: drive magnetic system includes magnetic conductor with at least one constant magnet and armature. Magnetic conductor and at least one constant magnet form at least one nonmagnetic gap. Armature installation provides gap entrance or exit. On magnetic conductor from the side where armature enters and exits the gap there is at least one projection contacting side surface of constant magnet.
EFFECT: changing effect of boundary leakage flux on magnetic system armature.
FIELD: machine building.
SUBSTANCE: proposed valve comprises valve assembly. The latter includes common bypass valve 4, inlet channel 20, outlet channel 22, return channel 23 communicated with bypass valve, and axially moving gate device 8, 15. In first position, device 8, 15 allows fluid to flow between channel 22 and channel 23 with channel 20 closed. In second position, device 8, 15 is axially shifted with respect to first position to allow fluid to flow between channel 20 and channel 22 with channel 23 closed. Spring 14 aims at driving device 8, 15 to its first position. Electrical drive 19 is connected with gate device and comprises permanent magnet 24 and electrical coil 25 with magnetic core. One of said device, either magnet or core, makes stator. Another device makes moving part. The latter is connected with gate device 8, 15 to displace the latter from first position into second position. Electrical drive operated from the mains.
EFFECT: reduced electric power consumption.
9 cl, 3 dwg
SUBSTANCE: field magnet includes case, control and augmented windings installed in case, armature with conic end part, electronic unit generating current for control and augmented windings. Windings in field magnet are mobile with regard to the case and connected constructively with each other, at that control winding is linked to armature stable in regard to the case and contains pin that retains its position in regard to the case; augmented winding is linked to armature having conic ends at two sides, at that electronic unit provides step-by-step alternate generation of current for windings and supplies current to one winding at a time.
EFFECT: provision of magnet traction performance close to horizontal position; equal large traction effort both at small initial movements of magnet armature and at large movements; achievement of equal traction effort both at retraction and pushing of armature; large armature travel with large traction effort.
SUBSTANCE: two-position electromagnet consists of two fixed symmetrical parts of magnetic conductor 1 and 2, in which the following components are installed: one coil in each, 3 and 4, conductor 5 and 6, segments 7 and 8, and movable part of magnetic conductor, comprising cylindrical anchor 9 with circular ledge in medium part and non-magnetic stem 10. Conductors 5 and 6 are arranged in the form of polyhedron with hole coaxial to axis of stem 10. Permanent magnets 11 and 12 are arranged between faces of conductors 5 and 6 and segments 7 and 8. Non-magnet stem 10 is rigidly connected to anchor 9 and is installed with the possibility of free movement along its axis.
EFFECT: development of two-position electromagnet, providing for stable high force of anchor gravitation to fixed parts of magnetic conductor.
SUBSTANCE: invention relates to the field of electric engineering, namely, to electromagnet actuator control element, in particular, for medium voltage breaker. Device comprises magnetic circuit, including movable magnetic rectangular core with control coil and movable circular yoke complying with magnetic circuit. Technical result is achieved by the fact that yoke (3) is fixed on driving axis (4), which on one side movably passes through centre of magnetic core, and on the other side is connected to switched traction rod of contact closure, side of driving axis passing through magnetic conductor, protrudes outside with lower end and is connected to the second yoke (7), smaller in side size.
EFFECT: improved compactness and increased capacity.
14 cl, 2 dwg
SUBSTANCE: electromagnetic drive device consists of movable along axis (3) armature (6, 6a, 6b) that has piston-shaped area (8, 8a, 8b), movable, in cylindrical part (2) of the stator (1). Note that, piston-shaped area (8, 8a, 8b) is penetrated by at least one groove (10) that is directed towards the axis (3). The groove (10) cuts through the edge of piston-shaped area (8, 8a, 8b) facing cylindrical part (2).
EFFECT: increase of response speed.
9 cl, 5 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed motor incorporates cylindrical stator 1 accommodating coil 2 and armature 3 representing cylinder 4 with disk section 5. Guide case 6 made from ferromagnetic material adjoins the stator, case cross section being smaller than that of stator. Said motor comprises also guide case cover 7, plain bearings 8 and 9, return spring 10 and damping washer 11. Guide case top part adjoining cover 7 has inner circular ledge that fairs with armature disk section side surface by its diametre. Said inner circular ledge is connected via technological gap A with said armature disk section side surface to allow magnetic flux passage and armature retention at initial stage of its travel.
EFFECT: higher stabilisation of impact power.
SUBSTANCE: polarised electromagnet includes magnetic conductor made in the form of two pins parallel to each other, on which windings are arranged. Between pole tips there arranged are constant magnets with direction of magnetisation axes from one pin to the other. Two rotary-type armatures are installed in load-carrying part. Pole tips are installed with possibility of pairwise joint movement along each of two pins. Rotary-type armatures consist of the base installed by means of hinges in holes of the load-carrying part fixed on pole tip, and laminated of the part plates. Each of the plates is installed with possibility of longitudinal movement.
EFFECT: increasing impact-and-vibration resistance, possibility of obtaining stable actuation voltage by enabling the control of armature travel and adjoining of armatures to cores when controlling the item parametres.
SUBSTANCE: invention is related to the field of electric engineering. Drive comprises magnetic conductor with receiving space, bobbin installed in magnetic conductor and containing cavity, winding wound along bobbin circumference for generation of magnetic field, fixed core rigidly installed on one internal side of bobbin, movable core installed on the other internal side of bobbin, separating element from nonmetal material installed between magnetic conductor and movable core for their separation. Besides separating element is arranged as a whole with bobbin.
EFFECT: improved efficiency.
19 cl, 9 dwg
FIELD: mechanical engineering; locking various mechanisms.
SUBSTANCE: proposed electromagnetic lock has bearing casing with separator, as well as force and control stages. Force stage has locking rod, force spring, and balls; it is actuated by control stage that has electromagnets and spring-loaded core with shaped groove which makes it possible to repeatedly bring lock in working position without replacing components or post-operation disassembly.
EFFECT: reduced operating time and power requirement, enhanced operating reliability and safety.
1 cl, 3 dwg