CN2783622Y - Damping straight line motor electromagnetic vibration damping - Google Patents

Abstract

The utility model provides a damping straight line motor for electromagnetic vibration damping, which relates to the technical field of motors. The utility model can solve the problems that the existing damping element has low controllable precision and small ratio of damping force to volume. The utility model is composed of a shell 1, an external stator 2 and an inner mover 3. The excircle surface of the external stator 2 is connected with the inner circle surface of the shell 1, and the excircle surface of the inner mover 3 is glidingly connected with the inner circle surface of the external stator 2. The left end of a shaft 3-5 of the inner mover 3 is exposed for a section after penetrating a hole 1-1 on the left end of the shell 1, and the right end of the shaft 3-5 of the mover 3 is exposed for a section after penetrating a hole 1-2 on the right end of the shell 1. The utility model can generate a controllable damping force with high precision, and has the advantages of high ratio of damping force to volume, simple structure, long service life, convenient and flexible use and easy maintenance.

Description

Damping linear electric machine for electromagnetic vibration damping

Technical field:

The utility model relates to the motor technology field, specifically is a kind of damping linear electric machine for electromagnetic vibration damping.

Background technology:

At present, International Machine Tool industry develops to automation, precise treatment, high efficiency and diversified direction, ultraprecise processing has entered the nano level epoch, and piece surface has entered minute surface and rainbow face standard, and this just requires lathe to possess high accuracy, high rigidity, high stability, high automation degree.The resistance to shock of lathe requires also more and more stricter.The ACTIVE CONTROL vibration is the effective measures that improve Dynamic Stiffness of Machine Tools and improve self-excitation stability.The development of technology such as orientation and guidance, Precision Machining and measurement, precision instrumentation, the vibration and the impact that reach environment have proposed more and more stricter requirement.The particularly develop rapidly of microelectron-mechanical (MEMS) technology and nanometer technology has entered sub-micron and Nano grade to the operation yardstick of object, and the vibration control to environment and operating platform also just requires to reach nanoscale like this.Along with the development of the progress and the development of science and technology, particularly Space Science and Technology of society, many occasions need high-precision vibration isolation environment to use for high-precision instrument, adopt traditional vibration isolating method just to be difficult to reach high accuracy vibration isolation requirement.In order to address this problem, scholar both domestic and external and engineers have been explored the method for many control flutters, wherein, adopt the method control flutter that applies damping, and its effectiveness in vibration suppression is better, and it all has damping effect to various vibration classifications.And the may command precision of existing damping element is not high, damping force is little with volume ratio, can not adapt to the requirement that has science and technology now.

The utility model content:

The purpose of this utility model provides a kind of damping linear electric machine for electromagnetic vibration damping.The utility model can solve that existing damping element may command precision is not high, damping force and the little problem of volume ratio.It is made up of housing 1, external stator 2, interior mover 3; The outer round surface of external stator 2 is connected on the internal circular surfaces of housing 1, the internal circular surfaces of the outer round surface of interior mover 3 and external stator 2 is slidingly connected, expose one section after the left end of the axle 3-5 of interior mover 3 passes the hole 1-1 of housing 1 left end, the right-hand member of the axle 3-5 of interior mover 3 exposes one section after passing the hole 1-2 of housing 1 right-hand member; External stator 2 is made up of a plurality of ring-like armature winding 2-1, a plurality of ring-like armature core 2-2; Each ring-like armature winding 2-1 evenly superposes to arrange with each ring-like armature core 2-2 space and is connected; Interior mover 3 is made up of a plurality of annular permanent magnet 3-2, a plurality of ring structure iron core 3-1, axle 3-5; Each annular permanent magnet 3-2, each ring structure iron core 3-1 are socketed in the middle part of a 3-5, and each annular permanent magnet 3-2 evenly superposes to arrange with each ring structure iron core 3-1 space and is connected.Operation principle: when interior mover 3 produces displacement with respect to external stator 2, to in each ring-like armature winding 2-1, produce electromotive force, after connecting controllable load between the first and last end at each ring-like armature winding 2-1, according to electromagnetic principle, interior mover 3 will be subjected to certain reaction force.Described external stator 2, interior mover 3 also have the another kind of structure of forming, and its external stator 2 is made up of a plurality of annular permanent magnet 2-4, a plurality of ring structure iron core 2-3; Each annular permanent magnet 2-4 evenly superposes to arrange with each ring structure iron core 2-3 space and is connected; Interior mover 3 is made up of a plurality of ring-like armature winding 3-4, a plurality of ring-like armature core 3-3, axle 3-5; Each ring-like armature winding 3-4, each ring-like armature core 3-3 are socketed in the middle part of a 3-5, and each ring-like armature winding 3-4 evenly superposes to arrange with each ring-like armature core 3-3 space and is connected.Operation principle: when interior mover 3 produces displacement with respect to external stator 2, to in each ring-like armature winding 3-4, produce electromotive force, after connecting controllable load between the first and last end at each ring-like armature winding 3-4, according to electromagnetic principle, interior mover 3 will be subjected to certain reaction force.The utility model can produce the controlled damping force of high accuracy, and have damping force and volume ratio height, simple in structure, the life-span long, the advantage of flexible and convenient to use, easy care.

Description of drawings:

Fig. 1 is an overall structure schematic diagram of the present utility model, and Fig. 2 is the overall structure schematic diagram of the composition structure of external stator 2 in the embodiment two, interior mover 3, and Fig. 3 is the A-A cutaway view of Fig. 1, and Fig. 4 is the B-B cutaway view of Fig. 2.

Embodiment:

Embodiment one: in conjunction with Fig. 1, Fig. 3 present embodiment is described, it is made up of housing 1, external stator 2, interior mover 3; The outer round surface of external stator 2 is connected on the internal circular surfaces of housing 1, the internal circular surfaces of the outer round surface of interior mover 3 and external stator 2 is slidingly connected, expose one section after the left end of the axle 3-5 of interior mover 3 passes the hole 1-1 of housing 1 left end, the right-hand member of the axle 3-5 of interior mover 3 exposes one section after passing the hole 1-2 of housing 1 right-hand member; External stator 2 is made up of a plurality of ring-like armature winding 2-1, a plurality of ring-like armature core 2-2; Each ring-like armature winding 2-1 evenly superposes to arrange with each ring-like armature core 2-2 space and is connected; Interior mover 3 is made up of a plurality of annular permanent magnet 3-2, a plurality of ring structure iron core 3-1, axle 3-5; Each annular permanent magnet 3-2, each ring structure iron core 3-1 are socketed in the middle part of a 3-5, and each annular permanent magnet 3-2 evenly superposes to arrange with each ring structure iron core 3-1 space and is connected.Air gap L is arranged, air gap L≤0.3mm between the outer round surface of the internal circular surfaces of external stator 2 and interior mover 3.The magnetizing direction of per two adjacent annular permanent magnet 3-2 is opposite in the interior mover 3.Annular permanent magnet 3-2 is made by the monoblock soft magnetic material.

Embodiment two: present embodiment is described in conjunction with Fig. 2, Fig. 4, the difference of present embodiment and embodiment one is external stator 2, interior mover 3 alternative composition structures, and its external stator 2 is made up of a plurality of annular permanent magnet 2-4, a plurality of ring structure iron core 2-3; Each annular permanent magnet 2-4 evenly superposes to arrange with each ring structure iron core 2-3 space and is connected; Interior mover 3 is made up of a plurality of ring-like armature winding 3-4, a plurality of ring-like armature core 3-3, axle 3-5; Each ring-like armature winding 3-4, each ring-like armature core 3-3 are socketed in the middle part of a 3-5, and each ring-like armature winding 3-4 evenly superposes to arrange with each ring-like armature core 3-3 space and is connected.The magnetizing direction of per two adjacent annular permanent magnet 2-4 is opposite in the external stator 2.Annular permanent magnet 2-4 is made by the monoblock soft magnetic material.

Claims (5)

1, damping linear electric machine for electromagnetic vibration damping is characterized in that it is made up of housing (1), external stator (2), interior mover (3); The outer round surface of external stator (2) is connected on the internal circular surfaces of housing (1), the internal circular surfaces of the outer round surface of interior mover (3) and external stator (2) is slidingly connected, the left end of the axle (3-5) of interior mover (3) exposes one section after passing the hole (1-1) of housing (1) left end, and the right-hand member of the axle (3-5) of interior mover (3) exposes one section after passing the hole (1-2) of housing (1) right-hand member; External stator (2) is made up of a plurality of ring-like armature winding (2-1), a plurality of ring-like armature core (2-2); Each ring-like armature winding (2-1) evenly superposes to arrange with each ring-like armature core (2-2) space and is connected; Interior mover (3) is made up of a plurality of annular permanent magnets (3-2), a plurality of ring structure iron core (3-1), axle (3-5); Each annular permanent magnet (3-2), each ring structure iron core (3-1) all are socketed in the middle part of axle (3-5), and each annular permanent magnet (3-2) evenly superposes to arrange with each ring structure iron core (3-1) space and is connected.

2, damping linear electric machine for electromagnetic vibration damping according to claim 1 is characterized in that the magnetizing direction of per two adjacent annular permanent magnets (3-2) in the interior mover (3) is opposite.

3, damping linear electric machine for electromagnetic vibration damping is characterized in that it is made up of housing (1), external stator (2), interior mover (3); The outer round surface of external stator (2) is connected on the internal circular surfaces of housing (1), the internal circular surfaces of the outer round surface of interior mover (3) and external stator (2) is slidingly connected, the left end of the axle (3-5) of interior mover (3) exposes one section after passing the hole (1-1) of housing (1) left end, and the right-hand member of the axle (3-5) of interior mover (3) exposes one section after passing the hole (1-2) of housing (1) right-hand member; External stator (2) is made up of a plurality of annular permanent magnets (2-4), a plurality of ring structure iron core (2-3); Each annular permanent magnet (2-4) evenly superposes to arrange with each ring structure iron core (2-3) space and is connected; Interior mover (3) is made up of a plurality of ring-like armature winding (3-4), a plurality of ring-like armature core (3-3), axle (3-5); Each ring-like armature winding (3-4), each ring-like armature core (3-3) all are socketed in the middle part of axle (3-5), and each ring-like armature winding (3-4) evenly superposes to arrange with each ring-like armature core (3-3) space and is connected.

4, damping linear electric machine for electromagnetic vibration damping according to claim 3 is characterized in that the magnetizing direction of per two adjacent annular permanent magnets (2-4) in the external stator (2) is opposite.

5,, it is characterized in that air gap (L) being arranged, air gap (L)≤0.3mm between the outer round surface of the internal circular surfaces of external stator (2) and interior mover (3) according to claim 1 or 3 described damping linear electric machine for electromagnetic vibration damping.

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