CN2318696Y

CN2318696Y - Electromagnet

Info

Publication number: CN2318696Y
Application number: CN 98200216
Authority: CN
Inventors: 刘双全; 刘存双; 沈希义; 信子文
Original assignee: HENGSHUI CITY RADIO FACTORY
Current assignee: HENGSHUI CITY RADIO FACTORY
Priority date: 1998-01-07
Filing date: 1998-01-07
Publication date: 1999-05-12
Anticipated expiration: 2008-01-07

Abstract

The utility model discloses a novel electromagnet, comprising a casing, a coil, a stop seat, an armature, a screw, a spring and a binding post. The contact surface of the armature and the stop seat is pyramid type. The suction force of the solenoid of the energizing coil is enlarged by taper fit. Four groups of coils and eight pairs of binding posts are adopted and a mechanical switching device is additionally arranged. At the sucking moment, the switching device lies in the conducting state. Sucking force is sent out by two groups of coils, ensuring sucking force with large power can be sent out. After suction, the screw moves and so the switching device automatically acts, converting into opening status and the suction force is kept by the four groups of coils. The utility model has small size and low energy consumption and can not be damaged after long-term operation.

Description

New electromagnet

The utility model relates to a kind of electromagnet, the particularly a kind of certain suction of need of water-cooled, air-cooled diesel engine or other machine and accessory of stroke of being used for.

Up to now, the like product volume is big, and suction is little, and big energy-consuming can not work long hours, and is fragile, and inconvenience is installed, and needs further improvement.

The purpose of this utility model provides a kind of new electromagnet, and it is little to make it volume, and it is low to consume energy, and does not also damage when long-term work.

The purpose of this utility model is such realization:

A kind of new electromagnet, it comprises: housing, coil, end seat, armature, screw rod, spring, binding post, end seat and be fixed on the interior end of housing, armature and screw rod are solidified as a whole with pin lock, screw rod is arranged in the sliding bearing at housing two ends, can be along housing shaft in certain distance, sliding, during the coil no power, armature with end seat and be separated from each other by the spring force effect; During coil electricity, electromagnetic attracting force armature moves to ending seat, and with end a seat adhesive, drive screw rod simultaneously and move, by screw rod output pulling force or thrust;

Armature is pyramid type with the contact-making surface that ends seat, by taper fit, has increased the screwed pipe suction of hot-wire coil; Adopt four groups of coils, eight pairs of posts also are provided with mechanical switching device shifter in addition, adhesive moment, switching device shifter is a conducting state, send suction by two groups of coils, guarantee to send high-power suction, after the adhesive, because moving of screw rod, this switching device shifter auto-action becomes open-circuit condition, keeps suction by four groups of coils; Also pre-installed the overtemperature prote switch in coil, cut off the electricity supply when electromagnet is overheated, the protection electromagnet; Be convenient to many installation sites structure of installing, the housing profile is cylindrical, and there is metric thread hole, many places at its two ends for installing, and the screw rod two ends have metric thread, are convenient to be connected with equipment.

In described four groups of coils, per two groups is a unit, two units in series connect, and one of them unit is parallel with mechanical switching device shifter, this device is along with the adhesive and the hold mode of armature automatically switch to closure or open-circuit condition, only make and produce suction simultaneously by a unit or two unit, the suction of generation is suitable.Described mechanical switching device shifter is a contactor, include two contacts and a conducting strip, two contacts are fixed in the housing, and suitably be connected with lead with binding post, conducting strip is fixed on the screw shaft, when coil is not switched on, ends seat and separates with armature, these switching device shifter two contacts are by the conducting strip conducting, and switching device shifter is a conducting state; Behind the coil electricity, end seat and armature adhesive, the conducting strip that drives on the screw rod is removed two contacts, two contacts open circuit, and switching device shifter is an open-circuit condition.

The utility model has following advantage and good effect:

1. many installation sites, profile of the present utility model are cylindrical, and there is metric thread hole, many places at the housing two ends for installing, and the screw rod two ends also have metric thread to be convenient to connect the equipment of output pulling force and thrust.

2. the utility model adopts armature and ends seat by taper fit, has increased the screwed pipe suction of hot-wire coil.

3. the utility model adopts four groups of coils, eight pairs of posts and reliable mechanical switching device shifter, has guaranteed the instantaneous powerful suction that sends, and after the adhesive, with very low power maintenance suction, it is little to make electromagnet have a volume, and suction is big, again can long-term work.

4. the utility model has also been pre-installed the overtemperature prote switch in coil, and it is to utilize the sudden change of bimetal leaf when temperature-sensitive to reach the cut-out coil power, protects when making electromagnet overheated, has improved the life-span of electromagnet.But this product import substitution like product is saved a large amount of foreign exchanges.

Fig. 1 is a profile of the present utility model;

Fig. 2 is a winding diagram of the present utility model;

Fig. 3, Fig. 4 are the circuit diagrams of the utility model 24V, 12V voltage.

Describe the utility model in detail below in conjunction with drawings and Examples.

As shown in Figure 1, it comprises: housing 1, coil 2, end seat 3, armature 4, screw rod 5, spring 6, binding post 7, end seat and be fixed on the interior end of housing, armature and screw rod are solidified as a whole with pin lock, screw rod is arranged in the sliding bearing at housing two ends, can be along housing shaft in certain distance, sliding, during the coil no power, armature with end seat and be separated from each other by the spring force effect; During coil electricity, electromagnetic attracting force armature moves to ending seat, and with end a seat adhesive, drive screw rod simultaneously and move, by screw rod output pulling force or thrust;

Armature is pyramid type with the contact-making surface that ends seat, by taper fit, has increased the screwed pipe suction of hot-wire coil; Adopt four groups of coils, eight pairs of posts also are provided with mechanical switching device shifter 8 in addition, adhesive moment, switching device shifter is a conducting state, send suction by two groups of coils, guarantee to send high-power suction, after the adhesive, because moving of screw rod, this switching device shifter auto-action becomes open-circuit condition, keeps suction by four groups of coils; Also pre-installed overtemperature prote switch 9 in coil, cut off the electricity supply when electromagnet is overheated, the protection electromagnet; Be convenient to many installation sites structure of installing, the housing profile is cylindrical, and there is metric thread hole, many places 10 at its two ends for installing, and the screw rod two ends have metric thread, are convenient to be connected with equipment.

As shown in Figure 1 and Figure 2, in described four groups of coils, per two groups is a unit, two units in series connect, and one of them unit is parallel with mechanical switching device shifter, this device only makes and produces suction simultaneously by a unit or two unit along with the adhesive and the hold mode of armature automatically switch to closure or open-circuit condition, and the suction of generation is suitable.

Described mechanical switching device shifter is a contactor, include two contacts 801 and a conducting strip 802, two contacts are fixed in the housing, and suitably be connected with lead with binding post, conducting strip is fixed on the screw shaft, when coil is not switched on, ends seat and separates with armature, these switching device shifter two contacts are by the conducting strip conducting, and switching device shifter is a conducting state; Behind the coil electricity, end seat and armature adhesive, the conducting strip that drives on the screw rod is removed two contacts, two contacts open circuit, and switching device shifter is an open-circuit condition.

In Fig. 2: K is mechanical switching device shifter, and A is the overtemperature prote switch, I, and II, III, IV are represented four groups of coils, 1,2,3,4,5,6,7,8 expressions, eight pairs of posts adopt the different modes of connection applicable to two kinds of voltages;

When adopting 24 volts of voltages,

The mode of connection is: 2 and 3 connect, and 6 and 7 connect (as shown in Figure 2), and it is a unit that the coil I is connected with II, and III is connected with IV and is another unit;

When adopting 12 volts of voltages,

The mode of connection is: 1 and 2 connect, and 3 and 4 connect, and 5 and 6 connect, and 7 and 8 connect (not drawing among Fig. 2); The coil I is in parallel with II to be a unit, and III is in parallel with IV to be another unit.

Claims

1. new electromagnet, it comprises: housing, coil, end seat, armature, screw rod, spring, binding post, end seat and be fixed on the interior end of housing, armature and screw rod are solidified as a whole with pin lock, screw rod is arranged in the sliding bearing at housing two ends, can be along housing shaft in certain distance, sliding, during the coil no power, armature with end seat and be separated from each other by the spring force effect; During coil electricity, electromagnetic attracting force armature moves to ending seat, and with end a seat adhesive, drive screw rod simultaneously and move, by screw rod output pulling force or thrust;

It is characterized in that: armature is pyramid type with the contact-making surface that ends seat, by taper fit, adopts four groups of coils, eight pairs of posts, also be provided with mechanical switching device shifter in addition, adhesive moment, switching device shifter is a conducting state, send suction by two groups of coils, after the adhesive and since screw rod move this switching device shifter auto-action, become open-circuit condition, keep suction by four groups of coils; Also pre-installed the overtemperature prote switch in coil, many installation sites structure is cylindrical for the housing profile, and there is metric thread hole, many places at its two ends for installing, and the screw rod two ends have metric thread.

2. new electromagnet according to claim 1, it is characterized in that: in described four groups of coils, per two groups is a unit, two units in series connect, and one of them unit is parallel with mechanical switching device shifter, this device only makes and produces suction simultaneously by a unit or two unit along with the adhesive and the hold mode of armature are closure or open-circuit condition automatically.

3. new electromagnet according to claim 1, it is characterized in that: described mechanical switching device shifter is a contactor, include two contacts and a conducting strip, two contacts are fixed in the housing, and suitably are connected with lead with binding post, and conducting strip is fixed on the screw shaft, when coil is not switched on, end seat and separate with armature, these switching device shifter two contacts are by the conducting strip conducting, and switching device shifter is a conducting state; Behind the coil electricity, end seat and armature adhesive, the conducting strip that drives on the screw rod is removed two contacts, two contacts open circuit, and switching device shifter is an open-circuit condition.