CN2667977Y

CN2667977Y - Automatic cradle

Info

Publication number: CN2667977Y
Application number: CNU200320123649XU
Authority: CN
Inventors: 陈效东
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-29
Filing date: 2003-12-29
Publication date: 2005-01-05
Anticipated expiration: 2013-12-29

Abstract

The utility model relates to an automatic cradle. The automatic cradle is driven by electromagnetism, and is composed of a magnetic force driver, a driving bent rod and a controlling circuit. The utility model is characterized in that the magnetic force device is composed of a fixed electromagnetic coil and a movable magnet which are mutually matched, wherein, push-pull force can be formed between the fixed electromagnetic coil and the movable magnet, the fixed electromagnetic coil is fixedly arranged on a cradle frame, and the movable magnet is arranged on the driving bent rod which is fixedly connected with a cradle body; the hanging basket type cradle body is used. The utility model uses the electromagnetism to drive the hanging basket type cradle and has the advantages of simple structure, reliable work, stable driving, no noise of a driving mechanism and low energy consumption.

Description

Automatic shaking table

Technical field:

The utility model relates to shaking table, a kind of infanette that can rock automatically of more specifically saying so.

Background technology:

That cradle is only managed is of a great variety, structure is different, manually rocks but be unable to do without always.In recent years, Chinese utility model patent discloses some infanettes that can rock automatically, but because structure is limit, exists problem separately to some extent at different aspects such as dependability, manufacturing cost, dry sounds, does not see that so far relevant product asks the city.

Summary of the invention:

Technical problem to be solved in the utility model is to avoid above-mentioned existing in prior technology weak point, the automatic shaking table that provide a kind of simple in structure, reliable operation, operate steadily, dry sound is low.

The technical scheme that the utility model technical solution problem is adopted is:

The utility model adopts Electromagnetic Drive, is made of magnetic driver, driving curved bar and control circuit.

Design feature of the present utility model is that described magnetic driver is by cooperatively interacting, can constituting at the Motionless electromagnetic coil and the movable magnet that form push-pull effort each other, wherein the Motionless electromagnetic coil stationary is arranged on the bedstead, movable magnet is arranged on the driving curved bar that connects firmly with the bed body, adopts basket-hanging bed body.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

The utility model adopts Electromagnetic Drive at the basket-hanging shaking table, it is simple in structure, reliable operation, driving steadily, driving mechanism do not have dry sound, energy consumption is low.

Description of drawings:

Fig. 1 is the utility model magnetic driver structural representation.

Fig. 2 is the utility model shaking table side-looking structural representation.

Fig. 3 is the utility model control circuit structural representation.

Fig. 4-1, Fig. 4-2, Fig. 4-3, Fig. 4-4, Fig. 4-5, Fig. 4-6, Fig. 4-7 are the course of work schematic diagram of the utility model magnetic driver.

Number in the figure: 1 Motionless electromagnetic coil, 2 movable magnets, 3 bedsteads, 4 bodies, 5 pins, 6 drive curved bar, 7 commutating coils, 8 buffer springs.

The specific embodiment:

Present embodiment adopts Electromagnetic Drive, is made of magnetic driver, driving curved bar and control circuit.

Referring to Fig. 1, magnetic driver is by cooperatively interacting, can constituting at Motionless electromagnetic coil 1 that forms push-pull effort each other and movable magnet 2.

Referring to Fig. 2, in concrete the enforcement, adopt basket-hanging bed body, its body 4 is the tops that are suspended in bedstead 3 with the pin 5 at two ends by bearing.Motionless electromagnetic coil 1 is fixedly installed on the bedstead 3, and movable magnet 2 is arranged on the driving curved bar 6 that connects firmly with bed body 3.In order to guarantee the security and stability of shaking table, should reduce the height of bedstead as far as possible, comprise that the setting of each attached device of control circuit should lower the center of gravity highly as far as possible, the design of whole bedstead and bed body should guarantee its mechanical strength.The extreme position of bed body 4 swings is limited by buffer spring.

Shown in Figure 1, the Motionless electromagnetic coil 1 in the present embodiment is a hollow tubular, forms sliding sleeve with movable magnet 2, and movable magnet 2 can be electromagnet, also can be permanent magnet.Setting can change the commutating circuit of Motionless electromagnetic coil 1 electromagnetism polar orientation at movable magnet 2 residing ad-hoc locations in good time.

In concrete the enforcement, Motionless electromagnetic coil 1 is set to change simultaneously three groups of electromagnetism polarity, forms series connection on the position, and the pole polarity between the adjacent fixed solenoid 1 is opposite.The movable magnet 2 that is equipped with also is three groups, forms series connection equally on the position, and the pole polarity between the adjacent activities magnet 2 is opposite.Fig. 1 illustrates, and is respectively arranged with commutating coil 7 in two outsides that are positioned at side Motionless electromagnetic coil 1, and commutating coil 7 is provided with unilateral diode by series connection and provides unidirectional trigger current for the in good time commutation of Motionless electromagnetic coil 1.

Referring to Fig. 3 and Fig. 4, present embodiment provides operating current and relevant control signal by control circuit shown in Figure 3 for each coil, thereby finishes the course of work of magnetic driver shown in Figure 4.Fig. 3 illustrates, and provides various operating voltages by isolating transformer T, respectively as the working power of each element circuit.Each element circuit comprises:

The electromagnetic lock circuit has actuating coil L, and its tapered end is arranged between bedstead 3 and the bed body 4, implements locking;

Wire loop comprises three groups of solenoid L1 and three groups of Motionless electromagnetic coil L2 of movable magnet, and all coils is arranged in parallel;

Commutating circuit, with commutating coil L3 as the commutation detecting element, provide triggering signal, two commutating coil L3 to divide series connection to be provided with unidirectional conducting diode D1, D2, by triode Q1, Q2, Q3 and auxiliary reclay J2 constitute signal amplification circuit, with throw over relay J3 serve as the commutation performer, the a pair of normally-closed contact J32 of throw over relay J3 is arranged in the forward current loop of Motionless electromagnetic coil L2, and a pair of normally opened contact J31 of throw over relay J3 is arranged in the reversing the current loop of Motionless electromagnetic coil L2;

The working time initialization circuit, constitute by charging capacitor C1, by-pass cock K3, triode Q4, Q5, Q6 and relay J 4, be arranged in parallel the normally-closed contact of relay J 1 on the charging capacitor C1, the normally-closed contact series connection of relay J 4 is arranged in the wire loop of relay J 1; What by-pass cock K3 was used for regulating is the different emitter voltage value of triode Q4.

Alignment circuit, K2 constitutes by toggle switch, and toggle switch K2 is the locational tap lead of the different numbers of turn of power transformer secondary windings alternatively.

In addition, the switch that respectively controls to adjust on the control panel links by terminal row or plug-in unit and control circuit, is provided with working time configuration switch K3 on control panel, slew rate is adjusted K switch 2, power supply indicator, overload protection fuse etc., so that operation.

The utility model adopts and manually boots.Manually boot on the one hand and can simplify circuit structure, another side has reduced the startup energy consumption significantly.

The concrete course of work:

Connect external power supply, press starting button K switch 1, relay J 1 coil gets electric, the power supply self-insurance, the normally-closed contact that is connected in parallel on the relay J 1 on the charging capacitor C1 disconnects, capacitor C 1 begins charging, and the working time of being set by K switch 3 picks up counting, simultaneously, because coil L gets, electromagnetic lock is unblanked, and artificial external force promotes shaking table to swaying direction, and shaking table just begins to wave automatically subsequently.

Position shown in Fig. 4-1, movable magnet coil L1 and Motionless electromagnetic coil L2 are in "on" position, and the electromagnetism polarity of formation indicates in the drawings, at this moment, the promotion that movable magnet is made a concerted effort because of the electromagnetism that is subjected to is to the right swung to the right thereby band takes shaking table to by the driving curved bar.This thrust stops under Fig. 4-3 state, continues to move right in order to make movable magnet, and the pole polarity of Motionless electromagnetic coil L2 is commutated.

When movable magnet moves in Fig. 4-2 position, commutating coil L3 is because variation has taken place in the magnetic flux of link, produce induced-current, make throw over relay J3 delay time electricly by auxiliary reclay J2, the Motionless electromagnetic coil is changed because of the change polarity of the magnetic field of the sense of current.Unilateral diode D1, D2 make commutating circuit receive only faradic triggering on direction of commutating coil L3, and in the swing of an overall process of shaking table, all one-shot induced-current of the commutating coil L3 of each side is used to trigger commutating circuit and implements commutation.

In order to guarantee functional reliability, working sensitivity, and minimum moment loss, on auxiliary reclay J2 coil, be arranged in parallel charging capacitor C2, by the charging time-delay of capacitor C 2 and auxiliary reclay J2 and throw over relay J3 intrinsic mechanical action time as the commutation delay time, be engraved in the leading portion slightly of state shown in Fig. 4-3 when guaranteeing commutation.

When arriving state shown in Fig. 4-4, electromagnetism makes a concerted effort to continue movable magnet is promoted to the right, and this state is kept by the discharge that is connected in parallel on the capacitor C 3 on the throw over relay J3 coil.

When capacitor C 3 discharge offs, arrive the leading portion slightly of state shown in Fig. 4-5.At this moment, throw over relay coil J3 dead electricity, the sense of current of Motionless electromagnetic coil L2 is recovered.

State shown in Fig. 4 that presents subsequently-6 makes movable coil continue swing to the right.

More than the conversion of twice polarity of the magnetic field be enough to make the shaking table amplitude of oscillation to reach the extreme position shown in Fig. 4-7, at this moment, drive energy unnecessary on the curved bar and inertia and will be set at the buffer spring 8 that drives on the curved bar 6 and absorb and store.Subsequently, under the member dead weight effect, backswing begins, and the initial velocity of backswing has been quickened in the resilience of buffer spring 8, and effective utilization of moment of inertia has more reduced energy consumption.

Backswing is identical with said process.

Version energy consumption in the present embodiment is low, safe and reliable.

Claims

1, automatic shaking table adopts Electromagnetic Drive, is made of magnetic driver, driving curved bar and control circuit; It is characterized in that described magnetic driver is by cooperatively interacting, can constituting at Motionless electromagnetic coil (1) that forms push-pull effort each other and movable magnet (2), wherein Motionless electromagnetic coil (1) is fixedly installed on the bedstead (3), movable magnet (2) is arranged on the driving curved bar (6) that connects firmly with bed body (4), adopts basket-hanging bed body.

2, automatic shaking table according to claim 1 is characterized in that described Motionless electromagnetic coil (1) is a hollow tubular, forms sliding sleeve with movable magnet (2).

3, ask 1 described automatic shaking table according to right, it is characterized in that being provided with to change the commutating circuit of Motionless electromagnetic coil (1) electromagnetism polar orientation at the residing ad-hoc location of movable magnet (2) in good time.

4, automatic shaking table according to claim 3 is characterized in that described Motionless electromagnetic coil (1) has three groups that can change electromagnetism polarity simultaneously, forms series connection on the position, and the pole polarity between the adjacent fixed solenoid is opposite; The movable magnet that is equipped with (2) is three groups also, and same formation connected on the position, and the pole polarity between adjacent activities magnet (2) is opposite.

5, automatic shaking table according to claim 4, it is characterized in that being provided with commutating coil (7), described commutating coil (7) lays respectively at the outside of two side Motionless electromagnetic coils, and commutating coil (7) provides unidirectional trigger current by the unilateral diode (D1, D2) that series connection is provided with for the commutation of Motionless electromagnetic coil (1).

6, automatic shaking table according to claim 5 is characterized in that described control circuit has:

Wire loop, three groups of solenoids (L1) and three groups of Motionless electromagnetic coils (L2) of movable magnet are arranged in parallel in electric power loop;

Commutating circuit, divide series connection to be provided with unidirectional conducting diode (D1, D2) with commutating coil (L3) as detecting element, two commutating coils (L3), constitute signal amplification circuit, serve as the performer that commutates by triode (Q1, Q2, Q3) and auxiliary reclay (J2) with throw over relay (J3), a pair of normally-closed contact (J32) with throw over relay (J3) is arranged in the forward current loop of Motionless electromagnetic coil (L2), is arranged in the reversing the current loop of Motionless electromagnetic coil (L2) with a pair of normally opened contact (J31) of throw over relay (J3).

7, automatic shaking table according to claim 4 is characterized in that described control circuit has:

The working time initialization circuit, constitute by charging capacitor (C1), by-pass cock (K3), triode (Q4, Q5, Q6) and relay (J4), be arranged in parallel the normally-closed contact of relay J 1 on the charging capacitor (C1), the normally-closed contact series connection of relay (J4) is arranged in the wire loop of relay (J1); What by-pass cock (K3) was regulated is the different emitter voltage value of triode (Q4).

8, automatic shaking table according to claim 4 is characterized in that described control circuit has:

Alignment circuit is made of toggle switch (K2), and what toggle switch (K2) was selected is the locational tap leads of the different numbers of turn of power transformer secondary windings.

9, automatic shaking table according to claim 4 is characterized in that described control circuit has:

The electromagnetic lock circuit has electromagnetic lock coil (L), and its tapered end is arranged between bedstead (3) and the bed body (4).