CN201069687Y

CN201069687Y - Shake reduction machine for dual push electromagnetic icon

Info

Publication number: CN201069687Y
Application number: CNU2007200408938U
Authority: CN
Inventors: 曹建文; 张鹤; 房文娜; 周新建
Original assignee: SUZHOU TONGRUN DRIVE EQUIPMENT CO Ltd
Current assignee: SUZHOU TONGRUN DRIVE EQUIPMENT CO Ltd
Priority date: 2007-07-23
Filing date: 2007-07-23
Publication date: 2008-06-04
Anticipated expiration: 2017-07-23

Abstract

A damping mechanism for a dual-pushed electromagnet belongs to the electromagnet parts. The damping mechanism includes a damping sheet arranged between an movable iron core and a fixed iron core, wherein at least one columnar damping gasket is included, and one end of the columnar damping gasket is mounted on the inner side of the fixed iron core and the other end extends into a gap between the movable and the fixed iron cores. The damping mechanism has the advantages of reduced noise, prolonged service life for the damping sheet, and no impact on the maximum electromagnetic force since the size of the gap finally formed between the movable and the fixed iron cores remains unchanged.

Description

The damping of dual-push electromagnetic iron

Technical field

The utility model relates to a kind of damping of dual-push electromagnetic iron, is the improvement to the damping of existing dual-push electromagnetic iron, belongs to the parts of electromagnet.

Background technology

Existing dual-push electromagnetic iron as shown in Figure 1 and Figure 2, it is to be provided with coil 3 in barrel-type casing 1, and moving iron core 4 is housed, and the both sides of housing 1 port by screw 2 fastening static iron core 7, vibration damping sheet 8 as damping is arranged between moving iron core 4, the static iron core 7, and have the gap between the moving iron core 4, the guide post 5 of moving iron core 4 passes the centre bore of static iron core 7, outboard end at static iron core 7 centre bores is equipped with the bearing 6 that lubricates guide post 5, and the bar 10 that manually declutches, terminal box 9 also are installed on housing 1.Fig. 1 is under the situation that electromagnet is not switched in the prior art, because the effect of tripping spring power maintains certain clearance between moving iron core 4, static iron core 7 and the vibration damping sheet 8; Fig. 2 be in the prior art electromagnet the energising situation under, coil 3 energisings, according to faraday's principle, coil 3 produces magnetic field, make moving iron core 4 to a side shifting of static iron core 7 and impinge upon on the vibration damping sheet 8, because the electromagnetic force of coil 3 energising back moment generations is with moving, static iron core 4, square being inversely proportional to of distance between 7, along with of the motion of moving iron core 4 to static iron core 7 directions, distance between the two reduces, electromagnetic force just increases, and makes iron core 4 produce very big acceleration, can produce bigger impulsive force with vibration damping sheet 8 bumps the time, send noise easily, and the long-time bump useful life that can reduce vibration damping sheet significantly.

Summary of the invention

The purpose of this utility model is the damping that a kind of long service life, dual-push electromagnetic iron that noise is low will be provided.

The purpose of this utility model reaches like this, a kind of damping of dual-push electromagnetic iron, it comprises the vibration damping sheet 8 that is arranged between moving iron core 4, the static iron core 7, be characterized in: also include at least one piece of column beam 11, one end of this column beam 11 is installed on the inboard of static iron core 7, and the other end extends in the space of moving between iron core 4, the static iron core 7.

Column beam 11 described in the utility model extends to height in moving iron core 4, static iron core 7 spaces greater than the height of vibration damping sheet 8, makes iron core 4 arrive the distance of vibration damping sheet 8 less than moving iron core 4 to the distance of column beam 11.

Column beam 11 described in the utility model has plural piece, distributes axisymmetricly in the inboard of static iron core 7.

Column beam 11 described in the utility model adopts elastomeric material to be made.

Elastomeric material described in the utility model is rubber or plastics.

The utility model is because after adopting said structure, at moving iron core 4 when static iron core 7 directions are moved, just contact earlier with behind column beam 11 bumps with vibration damping sheet 8, in this process, because the elastic force of column beam 11 will effectively be alleviated the impact velocity that electromagnetic force produces, so that the speed of moving iron core 4 when contact vibration damping sheet 8 descend, impulsive force to vibration damping sheet 8 obviously reduces, can not only reduce noise, and can prolong useful life of vibration damping sheet 8, simultaneously because final formation moves iron core 4, pore size between the static iron core 7 does not change, and therefore maximum electromagnetic force is not exerted an influence.

Description of drawings

Fig. 1 is the structural representation of dual-push electromagnetic iron no power state in the prior art.

Fig. 2 is the structural representation of dual-push electromagnetic iron "on" position in the prior art.

Fig. 3 is the structural representation of the utility model dual-push electromagnetic iron no power state.

Fig. 4 is the structural representation of the utility model dual-push electromagnetic iron "on" position.

Among the figure: 1. housing, 2. screw, 3. coil, 4. moving iron core, 5. guide post, 6. bearing, 7. static iron core, 8. vibration damping sheet, 9. terminal box, 10. manually declutch bar, 11. column beams.

Embodiment

By following description, will help to understand technical solutions of the utility model more, but embodiment should not be used for limiting the utility model, any pro forma modification or change and all should belong to technical scheme category disclosed in the utility model to embodiment.

See also Fig. 3, dual-push electromagnetic iron comprises barrel-type casing 1, in barrel-type casing 1, be provided with coil 3, and moving iron core 4 is housed, and the both sides of housing 1 port by screw 2 fastening static iron core 7, moving iron core 4 can be a plane with the mating surface of static iron core 7, also can be male and fomale(M﹠F), between moving iron core 4 and static iron core 7, be provided with damping, the guide post 5 of moving iron core 4 passes the centre bore of static iron core 7, outboard end at static iron core 7 centre bores is equipped with the bearing 6 that lubricates guide post 5, and the bar 10 that manually declutches, terminal box 9 also are installed on housing 1.Need to prove: for a dual-push electromagnetic iron, because that moving iron core 4, static iron core 7 all have is a pair of, so the damping on it also should have a pair of.

Please continue to consult Fig. 3, damping of the present utility model comprises vibration damping sheet 8 and at least one piece of column beam 11 that is arranged between moving iron core 4, the static iron core 7, normally, column beam 11 has plural piece, one end of plural number piece column beam 11 is installed in axially and axisymmetricly distributing of static iron core 7 medial surfaces respectively, the other end extends to respectively in the space of moving between iron core 4, the static iron core 7, and keeps not contacting with moving iron core 4.Simultaneously for make iron core 4 to the distance of column beam 11 less than the distance of moving iron core 4 to vibration damping sheet 8, should guarantee that column beam 11 extends to the height that moves in iron core 4, static iron core 7 spaces height greater than vibration damping sheet 8.Column beam 11 described in the utility model adopts elastomeric material to be made, and described elastomeric material is rubber or plastics.

See also Fig. 4 and narrate the course of work of the present utility model: when coil 3 energisings, produce magnetic field force, static iron core 7 attracts moving iron core 4, the guide post 5 that iron core 4 is driven on it moves together, along with moving iron core 4, reducing of 7 distances of static iron core, electromagnetic force increases, make iron core 7 produce bigger acceleration, in the accelerated motion process, moving iron core 4 collides with column beam 11 earlier, because column beam 11 adopts elastomeric material to be made, the elastic force that in knockout process, produces, to effectively alleviate the impact velocity that electromagnetic force produces, so that the speed of moving iron core 4 when contact vibration damping sheet 8 descend, just much little to the impulsive force of vibration damping sheet 8, the noise that has produced when not only having reduced bump, and prolonged useful life of vibration damping sheet 8, simultaneously owing to finally form moving iron core 4, pore size between the static iron core 7 does not change, and therefore maximum electromagnetic force is not exerted an influence.

Claims

1. the damping of a dual-push electromagnetic iron, it comprises the vibration damping sheet (8) that is arranged between moving iron core (4), the static iron core (7), it is characterized in that also including at least one piece of column beam (11), one end of this column beam (11) is installed on the inboard of static iron core (7), and the other end extends in the space between moving iron core (4), the static iron core (7).

2. the damping of dual-push electromagnetic iron according to claim 1, it is characterized in that described column beam (11) extends to height in moving iron core (4), static iron core (7) space greater than the height of vibration damping sheet (8), make iron core (4) to the distance of column beam (11) less than the distance of moving iron core (4) to vibration damping sheet (8).

3. the damping of dual-push electromagnetic iron according to claim 1 is characterized in that described column beam (11) has plural piece, distributes axisymmetricly in the inboard of static iron core (7).

4. the damping of dual-push electromagnetic iron according to claim 1 is characterized in that described column beam (11) adopts elastomeric material to be made.

5. the damping of dual-push electromagnetic iron according to claim 4 is characterized in that described elastomeric material is rubber or plastics.