A kind of closed Self-retaining electromagnet
Technical field
This utility model relates to electric magnet technical field, particularly relates to textile machinery industry, discloses a kind of closed Self-retaining electromagnet。
Background technology
Electric magnet is to be wound around, the outside of iron core, the conductive winding matched with its power, and this alive coil has magnetic as Magnet, and electric magnet is widely used in the various fields such as medical apparatus and instruments, food machinery, textile machine。
Current electric magnet mostly exists movable core, after electric magnet switches on power, movable core under electromagnetic action projection and go out, if the position now needing movable core is positioned at projection and going out, will guaranteeing that electric magnet continues to be energized, if cut off the electricity supply, movable core will be retracted。Electric magnet continues to be energized and can consume substantial amounts of electric energy on the one hand, also can make conductive winding persistent fever on the other hand, and long-time use can be substantially reduced the service life of conductive winding, and then reduces the service life of electric magnet。Particularly in textile industry, due to the particularity of working environment, general conventional electric magnet sealing is poor, and wool yarn, dust and other impurities in machine use very easily enter in electric magnet, cause that electromagnet core clamping stagnation makes electric magnet cisco unity malfunction。
Summary of the invention
In order to overcome the shortcoming and defect existed in prior art, the purpose of this utility model is in that to provide a kind of closed Self-retaining electromagnet, after cutting off the electricity supply, can continue slip iron core is positioned at extended position or retracted position, be greatly saved the electric energy used。
For achieving the above object, the closed Self-retaining electromagnet of one of the present utility model, including installing rack, installing rack is provided through the through hole of installing rack, it is installed in secured core and the slip iron core at through hole two ends respectively, it is installed in the electromagnetic coil that installing rack is peripheral, is installed in the permanent magnet of electromagnetic coil, be installed in the case that electromagnetic coil is peripheral with permanent magnet。
Preferably, described electromagnetic coil includes the first cylinder and the second cylinder being connected with the first cylinder, is wound in the coil of the first cylinder, the second cylinder, and the first cylinder, the second barrel jacket are located at installing rack, and permanent magnet is installed between the first cylinder and the second cylinder。
Preferably, described first cylinder and the second cylinder two ends in close proximity to one another are respectively arranged with catch, and permanent magnet is installed between adjacent catch。
Preferably, one end that described first cylinder, the second cylinder are wound with first coil, the second coil, first coil and the second coil close to each other respectively is connected to same tap。
Preferably, the length of described first cylinder is more than the length of the second cylinder。
Preferably, one end of described electromagnetic coil is equiped with bonnet, and secured core is installed in bonnet away from one end of slip iron core。
Preferably, the other end of described electromagnetic coil is equiped with capping, and slip iron core is installed in capping。
Preferably, described capping includes main part and the limiting section being connected with main part, and installing rack is arranged with the stopper slot coordinated with limiting section, and slip iron core runs through limiting section and main part。
Preferably, described main part is additionally provided with cap portion, and limiting section and cap portion are not positioned at the both sides of main part, and slip iron core is installed in cap portion away from one end of secured core。
Preferably, described permanent magnet include the first Magnet and the second Magnet, the first Magnet and the second Magnet toward each other and interval arrange, the first Magnet is annular with the synthesis of the second group of magnets。
The beneficial effects of the utility model: the slip iron core of this utility model electric magnet is cut off the electricity supply after stretching out, and slip iron core is positioned at extended position by permanent magnet;Slip iron core is cut off the electricity supply after retracting, and slip iron core is positioned at retracted position by permanent magnet;It is greatly saved the electric energy that electric magnet uses, cuts off the electricity supply and electromagnetic coil also can be avoided to generate heat because of energising, effectively extend the service life of electromagnetic coil。Meanwhile, this utility model electric magnet overall structure closure is good, and wool yarn, dust and other impurities can not enter inside electric magnet, it is possible to normal operation under relatively adverse circumstances, and the phenomenon of slip iron core clamping stagnation will not occur。
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is decomposition texture schematic diagram of the present utility model;
Fig. 3 is the decomposition texture schematic diagram of installing rack of the present utility model, secured core, slip iron core, electromagnetic coil, bonnet, capping;
Fig. 4 is the decomposition texture schematic diagram of installing rack of the present utility model, secured core, slip iron core。
Accompanying drawing labelling includes:
1 installing rack 10 through hole 11 stopper slot
21 secured cores 22 slide iron core 3 electromagnetic coil
31 first cylinder 32 second cylinders 33 connect sheet
34 catch 41 first Magnet 42 second Magnet
5 case 60 bonnets 61 cover
62 main part 63 limiting section 64 cap portions。
Detailed description of the invention
For the ease of the understanding of those skilled in the art, below in conjunction with embodiment and accompanying drawing, this utility model being further described, the content that embodiment is mentioned is not to restriction of the present utility model。
Refer to shown in Fig. 1, Fig. 3 and Fig. 4, the closed Self-retaining electromagnet of one of the present utility model, including installing rack 1, installing rack 1 is substantially cylindrical, and installing rack 1 is provided through the through hole 10 of installing rack 1, is separately mounted to secured core 21 and the slip iron core 22 of through hole 10 opposite end, secured core 21 and slip iron core 22 are generally cylindrical, it is installed in the electromagnetic coil 3 of installing rack 1 periphery, is installed in the permanent magnet on electromagnetic coil 3, be installed in the case 5 that electromagnetic coil 3 is peripheral with permanent magnet。
After the electromagnetic coil 3 of this utility model electric magnet switches on power; slip iron core 22 magnetizes, and then slip iron core 22 slides along through hole 10 and stretches out, and now cuts off the power supply of electromagnetic coil 3; slip iron core 22 is positioned at extended position by permanent magnet, it is ensured that slip iron core 22 will not be retracted。When slip iron core 22 is retracted by needs, applying contrary voltage or electric current on electromagnetic coil 3, secured core 21 magnetizes, and secured core 21 attracts slip iron core 22 and retracted by slip iron core 22, now cutting off the power supply of electromagnetic coil 3, slip iron core 22 is positioned at retracted position by permanent magnet。Owing to slip iron core 22 arrives the power supply stretching out or can cutting off after retracted position electromagnetic coil 3, continue to be energized without electromagnetic coil 3, it is greatly saved the electric energy that electric magnet uses, cuts off the electricity supply and electromagnetic coil 3 also can be avoided because being energized and persistent fever for a long time, effectively extend the service life of electromagnetic coil 3。Utilize case 5 to be sealed by electric magnet, it is prevented that wool yarn in production, dust and other impurities enter in electric magnet, and then cause slip iron core 22 clamping stagnation of electric magnet and cisco unity malfunction。
Refer to shown in Fig. 2 and Fig. 3, described electromagnetic coil 3 is substantially the tubular of hollow, electromagnetic coil 3 includes first cylinder the 31, second cylinder 32 and connects sheet 33, the two ends connecting sheet 33 are connected with first cylinder the 31, second cylinder 32 respectively, in the present embodiment, first cylinder the 31, second cylinder 32 and connection sheet 33 are integrated setting and form;In order to ensure the bonding strength of first cylinder the 31, second cylinder 32, the quantity connecting sheet 33 is two, and two connect sheet 33 and are spaced and are oppositely arranged。
Described electromagnetic coil 3 also includes being wrapped in the coil (not shown) on the first cylinder 31, on the second cylinder 32, and first cylinder the 31, second cylinder 32 is set in the outside of installing rack 1, and permanent magnet is arranged between the first cylinder 31 and the second cylinder 32。In the present embodiment, the first cylinder 31 and the second cylinder 32 two ends in close proximity to one another are respectively arranged with catch 34, and permanent magnet is arranged between adjacent catch 34, it is ensured that permanent magnet is firm to be held on electromagnetic coil 3。Permanent magnet includes the first Magnet 41 and the second Magnet 42, first Magnet 41 is identical with the second Magnet 42 shape, both are substantially in semi-circular, first Magnet 41 and the second Magnet 42 toward each other and interval arrange, it is spaced apart by connection sheet 33 between the two, first Magnet 41 and the second Magnet 42 circularizes or circular, certainly, also can be arranged to an entirety by the first Magnet 41 and the second Magnet 42。Installing rack 1 is between the first Magnet 41 and the second Magnet 42。
In the present embodiment, described first cylinder 31, on second cylinder 32, correspondence is wound with first coil (not shown) respectively, second coil (not shown), preferably, first coil, second coil adopts copper wire winding to form, in order to simplify the manufacturing process of first coil and the second coil, first coil is identical with the winding direction of the second coil, first coil and the second coil one end close to each other is commonly connected in the first tap (not shown), one end that first coil and the second coil are located remotely from each other is connected to the second tap (not shown)。Time actually used, first tap is connected with the positive pole of power supply, second tap is connected with the negative pole of power supply, according to specific needs, user can select to connect first coil or the second coil easily, due to first coil and the second coil around to identical, easily realizing first coil contrary with the current direction in the second coil, it is not necessary to exchange the both positive and negative polarity of power supply to change the flow direction of electric current on coil。Certainly, first coil and the second coil around to also can be contrary, time actually used, first coil is arranged to the contrary flow direction with the electric current in the second coil。
Described first cylinder 31 is equiped with bonnet 60 away from one end of the second cylinder 32, bonnet 60 is substantially in flat circle, secured core 21 is arranged on bonnet 60 away from one end of slip iron core 22, second cylinder 32 is equiped with capping 61 away from one end of the first cylinder 31, capping 61 is equally substantially in flat circle, slip iron core 22 runs through capping 61, and when slip iron core 22 is protruding, capping 61 is fixed on electromagnetic coil 3 motionless。Bonnet 60 is utilized to coordinate electromagnetic coil 3 to be sealed by electric magnet further with capping 61, it is ensured that extraneous yarn, dust and other impurities can not enter in electric magnet。Secured core 21 runs through the first cylinder 31 and extends between the first Magnet 41 and the second Magnet 42, slip iron core 22 runs through the second cylinder 32 and extends between the first Magnet 41 and the second Magnet 42, in the present embodiment, the length of described first cylinder 31 is more than the length of the second cylinder 32, so, it can be ensured that the number of turns of first coil is more than the number of turns of the second coil, after first coil is energized, guarantee that secured core 21 has bigger magnetic force, rapidly slip iron core 22 can be pulled to retracted position。Certainly, the length of the first cylinder 31 also can equal or approximately equal with the length of the second cylinder 32。
Refer to shown in Fig. 3 and Fig. 4; described capping 61 includes main part 62 and the limiting section 63 being connected with main part 62; the one projection of limiting section 63 main body 62 forms; the stopper slot 11 that installing rack 1 is arranged with; limiting section 63 is arranged in stopper slot 11; slip iron core 22 runs through limiting section 63 and main part 62, it is ensured that slip iron core 22 can move back and forth between extended position and retracted position。
Described main part 62 is additionally provided with cap portion 64, and main body 62 one projection in cap portion 64 forms, and limiting section 63 and cap portion 64 lay respectively at the opposite sides of main part 62, and slip iron core 22 is installed in cap portion 64 away from one end of secured core 21。When slip iron core 22 is protruding; slip iron core 22 is protruding together with capping 61; it is assembled on installing rack 1 in time during in order to ensure slip iron core 22 with capping 61 retraction; limiting section 63 is away from the size being smaller in size than close main part 62 one end of main part 62 one end, it is to avoid limiting section 63 touches the end of installing rack 1 when being installed in stopper slot 11。
Known this utility model is have above-described good characteristic in sum, is made it on using, promotes the usefulness not having in conventional art and have practicality, become the product of a great practical value。
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this specification content should not be construed as restriction of the present utility model。