CN203770501U

CN203770501U - Electromagnetic suspension type dynamic shock absorber

Info

Publication number: CN203770501U
Application number: CN201420193146.8U
Authority: CN
Inventors: 徐睿昀
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-11
Filing date: 2014-04-11
Publication date: 2014-08-13
Anticipated expiration: 2024-04-11

Abstract

The utility model discloses an electromagnetic suspension type dynamic shock absorber which consists of a metal ring, an outer barrel, an electric brush, a shaft lever wound with resistance wires (called a shaft lever for short blow), an inner barrel, an inner barrel base, a short-circuit conductor, a permanent magnet, an iron core and an electromagnet. The shock absorber is characterized in that the electromagnet in the inner barrel is fixed on the inner barrel base; the shaft lever wound with the resistance wires is fixed in the outer barrel, and can move up and down together with the outer barrel; the permanent magnet is fixed at the top of the shaft lever wound with the resistance wires; the resistance wires on the shaft lever wound with the resistance wires is insulated from the short-circuit conductor, and are mutually non-conductive. According to the shock absorber, the principles that a magnetic field is generated around an electrical wire, the magnitude of magnetic flux is directly proportional to input current and the same magnetic poles of magnets are repulsive are utilized, and the shock absorber works in a magnetic suspension way, so that the aims of controlling the movement of mechanical parts, cushioning and attenuating shock and accumulating energy are fulfilled, and particularly, the rigidity of a compression shock absorption spring is changed along with the magnitude of a load; the shock absorber is high in performance, small in size and simple in structure, can be widely applied to various suspension frames of machinery, vehicles, airplanes and locomotives, and can also be used for the shock absorption of precision instruments.

Description

Electromagnetic suspension type dynamic buffering vibration damper

Technical field

The utility model relates to a kind of elastic buffer device by magnetic levitation work, it is mechanically various that it can be widely used in the suspension of national defence ordnance, aircraft, automobile, motorcycle, bicycle, electric bicycle and press machine, compressor, stamping press, centrifuge, pneumatic hammer etc., also can be used for the damping of some precision type instrument simultaneously.Especially meet compression damping spring rigidity and become with magnitude of load, can relax rapidly the electromagnetic suspension type dynamic buffering vibration damper of attenuation vibration.

Background technique

At present, disclosed elastic buffer vibration damper has spring, rubber, gas, liquid or gas-liquid mixed or magneto.They adopt vibration damper and elastic element to be separately arranged in parallel mostly, because their vibration and damping size or variation of magnetic force differs, easily like this cause both asynchronous, affect smoothness and travelling comfort.And they are high to seal request, gas liquid easily reveals,, poor durability strict to gas-liquid quality quantitative requirement, cost is high, quality is large, volume is large, complex manufacturing technology, Aided Machine are many, is very difficultly contained in machinery compactly.Can not meet in load hour mildly deformation and discharge, when being subject to larger load, can bear well again the requirement of larger load and attenuation vibration.

Model utility content

In order to overcome existing damping device, can not meet the deficiency that performance is good, simple and compact for structure, cost is low simultaneously, the utility model provides a kind of electromagnetic suspension type dynamic buffering vibration damper, thereby can control rapidly mitigation attenuation vibration owing to adopting magnetic vibration reducing to reach, and the naturally soft flexible complementation of its elastic stiffness, can become with magnitude of load, there is nonlinear feature.

Described model utility is simple and compact for structure, volume is little, lightweight, fabricating cost is cheap.

Electromagnetic suspension type dynamic buffering vibration damper is to utilize electrified wire to produce the principle in magnetic field and the principle that magnetic pole of the same name repels mutually around, by magnetic levitation work, reaches and controls parts motion, mitigation decay vibrations, the object of stored energy.

The object of described model utility is by adopting following technical proposals to realize:

This electromagnetic suspension type dynamic buffering vibration damper is comprised of urceolus (2), brush (3), the axostylus axostyle (4) that is tied with resistance wire, inner core (5), short-circuit conductor (6), permanent magnet (7), iron core (8), electromagnet (9) and inner core base (10).

In order better to realize the utility model, described electromagnetic suspension type dynamic buffering vibration damper has following structural feature: the electromagnet (9) in inner core (5) is fixed on inner core base (10), the axostylus axostyle (4) that is tied with resistance wire is fixed in urceolus (2) and can moves up and down together with urceolus (2), permanent magnet (7) is fixed on axostylus axostyle (4) top that is tied with resistance wire, be tied with resistance wire and short-circuit conductor (6) mutually insulated on the axostylus axostyle (4) of resistance wire, and be nonconducting mutually between the resistance wire being wound around.

Further, the structure characteristic of described its inner core of electromagnetic suspension type dynamic buffering vibration damper (5) is: inner core (5) is comprised of left and right two semicircle cambered surfaces and inner core base (10), between left and right two semicircle cambered surfaces, leaves gap.

Further, one end of described its inner core of electromagnetic suspension type dynamic buffering vibration damper (being left and right two semicircle cambered surfaces) is connected with inner core base (10), the other end inner side is fixed with respectively brush (3), the brush of one of them semicircle cambered surface (3) contacts with the resistance wire being tied with on the axostylus axostyle (4) of resistance wire, and the brush of another semicircle cambered surface (3) contacts with short-circuit conductor (6).

The inner core base (10) of described electromagnetic suspension type dynamic buffering vibration damper insulate.

In order better to realize the utility model, the resistance wire using in the described axostylus axostyle that is tied with resistance wire (4) is to adopt enamelling technique to make, non-conductive between the resistance wire being mutually wound around, the part contacting with brush (3) should scrape off insulated paint, makes it contact conduction with brush (3).

In pressure shock-absorbing situation, the polarity in the magnetic field that electromagnet (9) produces must with the permanent magnet (7) of be embedded on the axostylus axostyle (4) that is tied with resistance wire to over against Magnetic Phase with.

As a kind of improvement of the present utility model, described model utility can be used different electromagnet (9) (coil turn being generally wound around with electromagnet, iron core (8) composition are distinguished) according to the actual size that runs into pressure, to adapt to the damping of some immense pressures.

As a kind of improvement of the present utility model, described model utility can be used the resistance wire of different resistance sizes, and the model utility described in allowing is for the damping of some precision type instrument.

As preferably, the permanent magnet of described model utility (7) can be selected third generation rare earth high energy magnet material, the Nd-Fe-B permanent magnetic steel that uses science magnetic circuit principle to make.

Accompanying drawing explanation:

Fig. 1 is device schematic diagram;

Fig. 2 is device circuit figure;

Fig. 3 is inner tube structure schematic diagram.

Wherein the corresponding name of the reference character in accompanying drawing is called:

1-metal ring, 2-urceolus, 3-brush (2 pairs of semi-circulars), 4-is tied with the axostylus axostyle (abbreviation axostylus axostyle) of resistance wire,

5-inner core, 6-short-circuit conductor, 7-permanent magnet, 8-iron core, 9-electromagnet, 10-inner core base.

Embodiment:

Below in conjunction with embodiment, the utility model is described in more detail:

Embodiment

As shown in FIG. 1 to 3, a kind of electromagnetic suspension type dynamic buffering vibration damper.

The inner core of the present embodiment inserts urceolus and is tied with between the axostylus axostyle (4) of resistance wire, and its inside is provided with electromagnetism damping device.

When additional power source, electromagnet (9) produces magnetic force, urceolus (2) is upwards pushed open, regulating power source voltage now, select as required the suitable distance of pushing open, when the external world applies a downward pressure to the metal ring (1) of urceolus (2) upper end, urceolus (2) is moved downward.

Now, the axostylus axostyle (4) that is tied with resistance wire also follows urceolus (2) to move downward together, semiorbicular brush (3) moves upward with respect to urceolus (2), brush (3) and the resistance wire of put in circuit is diminished, thereby can make the resistance decreasing in current loop.

Because right side brush (3) is connected with short-circuit conductor (6), and short-circuit conductor (6) and being tied with between the axostylus axostyle (4) of resistance wire insulate, during resistance decreasing in current loop, electric current in current loop increases, electromagnet (9) produces larger magnetic repellence permanent magnet (7), promote urceolus (2) and move upward, repel the extraneous pressure to urceolus (2).

The explanation of embodiment's circuit, wire enters dress l by urceolus (2) upper end, when additional power source, electric current flows to the resistance wire above of axostylus axostyle (4) that is tied with resistance wire, brush (3) in inner core (5) right semi-circle cambered surface and right semi-circle cambered surface flow into the terminal of the electromagnet (9) on inner core base (10), another terminal of electromagnet are connected with left half cambered surface of inner core (5), then the brush (3) in left half cambered surface of inner core (5) and left half cambered surface and short-circuit conductor (6), bleeder, forms current loop.

On the inner core of the present embodiment and urceolus, be equipped with metal ring (1), during use, the utility model be installed on the parts of various power machines by metal ring (1), this electromagnetic suspension type dynamic buffering vibration damper just can well play cushioning effect.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. an electromagnetic suspension type dynamic buffering vibration damper, by urceolus (2), brush (3), be tied with the axostylus axostyle (4) of resistance wire, inner core (5), short-circuit conductor (6), permanent magnet (7), iron core (8), electromagnet (9) and inner core base (10) form, it is characterized in that: the electromagnet (9) in inner core (5) is fixed on inner core base (10), the axostylus axostyle (4) that is tied with resistance wire is fixed in urceolus (2), permanent magnet (7) is fixed on axostylus axostyle (4) top that is tied with resistance wire, be tied with resistance wire and short-circuit conductor (6) mutually insulated on the axostylus axostyle (4) of resistance wire, and be nonconducting mutually between the resistance wire being wound around.

2.electromagnetic suspension type dynamic buffering vibration damper according to claim 1, it is characterized in that: inner core (5) is comprised of left and right two semicircle cambered surfaces and inner core base (10), between left and right two semicircle cambered surfaces, leave gap, one end of left and right two semicircle cambered surfaces is connected with inner core base (10), the other end inner side is fixed with respectively brush (3), the brush of one of them semicircle cambered surface (3) contacts with the resistance wire being tied with on the axostylus axostyle (4) of resistance wire, the brush of another semicircle cambered surface (3) contacts with short-circuit conductor (6), mutually non-conductive between two semicircle cambered surfaces.