KR20170055210A - Magnetic lift device with controllabe magnetic force - Google Patents

Magnetic lift device with controllabe magnetic force Download PDF

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Publication number
KR20170055210A
KR20170055210A KR1020150158105A KR20150158105A KR20170055210A KR 20170055210 A KR20170055210 A KR 20170055210A KR 1020150158105 A KR1020150158105 A KR 1020150158105A KR 20150158105 A KR20150158105 A KR 20150158105A KR 20170055210 A KR20170055210 A KR 20170055210A
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KR
South Korea
Prior art keywords
permanent magnet
lever member
housing
magnetic
lift device
Prior art date
Application number
KR1020150158105A
Other languages
Korean (ko)
Inventor
박기주
Original Assignee
박기주
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Filing date
Publication date
Application filed by 박기주 filed Critical 박기주
Priority to KR1020150158105A priority Critical patent/KR20170055210A/en
Publication of KR20170055210A publication Critical patent/KR20170055210A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/04—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by magnetic means

Abstract

The present invention relates to a magnetic lift apparatus capable of controlling a magnetic force, comprising: a housing having a reception space inside and having an absorption surface to absorb an object to be absorbed in a lower part; a fixated permanent magnet installed on one upper side of the housing; a permanent magnet assembly installed in the lower part of the fixated permanent magnet within the reception space to be able to rotate; a lever member connecting one end to one side of the permanent magnet assembly, and rotating the permanent magnet assembly between a first position in which different poles of the fixated permanent magnet and the permanent magnet assembly are disposed to be facing, and a second position in which the identical poles of the fixated permanent magnet and the permanent magnet assembly are disposed to be facing; and a position fixation unit installed on the housing and/or the lever member, and supporting one side of the lever member to one side of the housing to fixated the lever member in an arbitrary position between the first and second positions. According to the present invention, since objects to be processed with various weights can be absorbed, multiple magnetic apparatuses to absorb the objects to be processed with various weights are not required, so expenses due to equipment purchase can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a magnetic lift device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a magnetic lift device capable of adjusting magnetic force, and more particularly, to a magnetic lift device capable of adjusting magnetic force capable of adsorbing objects of various weights by a single device.

Generally, a magnetic lift device is a device used to transfer or load an iron-based or iron-based barrier material through the magnetic force of a magnet, and is widely used in various industrial fields.

FIG. 1 is a schematic view showing a conventional magnetic lift device, and FIGS. 2 (a), 2 (b) and 2 (c) are schematic views for explaining the operation principle of a conventional magnetic lift device.

FIG. 1 is a perspective view of a conventional magnetic lift device. FIG. 1 is a perspective view of a conventional magnetic lift device. FIG. 1 is a perspective view of a conventional magnetic lift device. (10), fixed permanent magnets (20) installed on the upper portion of the accommodation space and having right and left polarities different from each other, and a fixed permanent magnet A rotating permanent magnet 30 coupled with a permanent magnet 32 having polarity and a lever 40 coupled to one side of the rotating permanent magnet 30 to provide a rotational force.

2 (a), when the lever is positioned at the first position where the magnetic poles of the fixed permanent magnet 20 and the rotating permanent magnet 30 are disposed opposite to each other, Since the magnetic force generated in the fixed permanent magnet 20 and the rotating permanent magnet 30 is formed to circulate in the housing 10, no magnetic force is formed under the attracting surface 12 of the housing 10, So that the object P can not be adsorbed through the adsorption face 12.

2 (b), the rotating permanent magnet 30 is rotated 180 degrees in the counterclockwise direction so that the magnetic poles of the fixed permanent magnet 20 and the rotating permanent magnet 30 are arranged to be equal to each other The magnetic force generated in the fixed permanent magnet 20 and the rotating permanent magnet 30 is formed so as to circulate under the attracting surface 12 of the housing 10 when the lever is located at the second position, So that the object P can be adsorbed through the adsorption face 12 of the housing 10.

At this time, the magnetic force formed below the attracting surface 12 of the housing 10 increases as the lever moves from the first position to the second position, and a maximum magnetic force is generated when the lever is located at the second position.

Meanwhile, in the above-described conventional magnetic lift apparatus, the lever is placed at the second position and the object P having the weight corresponding to the maximum magnetic force generated at the second position can be attracted, When the workpiece P 'having a weight lower than the workpiece P having a weight corresponding to the maximum magnetic force is attracted to the workpiece P' at a third position where a magnetic force corresponding to the workpiece P ' The lever 40 is in a state of returning to the first position without being moved to the second position due to the repulsive force between the fixed permanent magnet 20 and the rotating permanent magnet 30. [

Accordingly, there arises a problem that the object to be processed P 'having a weight lower than that of the object P having a weight corresponding to the maximum magnetic force generated at the second position can not be attracted. In order to attract the objects to be processed having various weights A plurality of magnetic lift devices having different maximum magnetic forces are required, which increases the cost of the magnetic lift devices.

For this reason, there is a demand for a magnetic lift device capable of adsorbing objects of various weights by a single magnetic lift device.

Korean Patent Laid-Open Publication No. 2013-0000370 'Magnetic Lifter'

SUMMARY OF THE INVENTION It is an object of the present invention to provide a magnetic lift device capable of adjusting a magnetic force to be able to attract objects of various weights with a single device.

According to an aspect of the present invention for achieving the above object, there is provided a vacuum cleaner comprising: a housing having a housing space formed therein and having a suction surface on which an object to be adsorbed is adsorbed, a fixed permanent magnet provided on one side of the housing, A permanent magnet coupling member rotatably installed at a lower portion of the permanent magnet, and a first position where one end of the permanent magnet coupling member is coupled to one side of the permanent magnet coupling member and the different magnetic polarities of the fixed permanent magnet and the permanent magnet coupling member are disposed opposite to each other, And a second position in which the same magnetic polarity of the permanent magnet assembly and the permanent magnet assembly are disposed opposite to each other, and a lever member for rotating the permanent magnet assembly and at least one of the housing member and the lever member, One end of the lever member is supported on one side of the housing, And a position fixing unit that fixes the magnetic force to an arbitrary position between the first position and the second position.

Here, the position fixing portion may include: a fixing bracket provided at one side of the outer surface of the housing, the fixing bracket including a plurality of engagement grooves formed along a rotation path of the lever member; And a support means which is movably installed along the plurality of engagement grooves and which is engaged or disengaged with any one of the plurality of engagement grooves.

The supporting means is movably installed inside the one end of the lever member, and a latching protrusion is provided on one side of the outer surface so that the latching protrusion corresponding to the latching groove is exposed to the outside of the lever member. An elastic member interposed between one side of the inner surface of the member and providing an elastic force to the engaging piece in a direction in which the engaging protrusion is engaged with the engaging groove; And a pushing bar inserted into the other end of the lever member, the other end of the pushing bar extending in the other end direction of the lever member and pressing the other end of the pushing bar by the pushing operation to release the engagement of the engagement protrusion Is more preferable.

According to the present invention, since a plurality of magnetic devices for adsorbing objects of various weights can be provided, it is possible to reduce the cost of equipment purchase do.

1 is a schematic view showing a conventional magnetic lift apparatus.
2 (a), 2 (b) and 2 (c) are schematic views for explaining the operation principle of a conventional magnetic lift device.
3 is a perspective view of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention.
4 is an exploded perspective view of a magnetic lift device capable of controlling magnetic force according to an embodiment of the present invention.
5 is a cross-sectional view of a lever member of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention.
FIGS. 6, 7, 8A and 8B are schematic views for explaining the operation of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that like elements in the drawings are represented by the same reference numerals as possible. Further, detailed description of known functions and configurations that may unnecessarily obscure the gist of the invention will be omitted.

FIG. 3 is a perspective view of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention, FIG. 4 is an exploded perspective view of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention, Sectional view of a lever member of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention.

3 to 5, a magnetic lift device 1 capable of adjusting magnetic force according to an embodiment of the present invention includes a housing 10, a fixed permanent magnet 20, a permanent magnet coupling 30, a lever member 40 and a position fixing portion 50. [

The housing 10 has a receiving space formed therein and an adsorption surface 11 for adsorbing an object to be processed is formed at a lower portion and an installation groove 12 is formed at the center of the upper surface along the longitudinal direction of the housing 10.

This installation groove 12 provides a region in which a fixed permanent magnet 20 to be described later is installed.

The housing 10 is formed with a circular mounting hole 12 into which a permanent magnet assembly 30 to be described later is inserted. A pair of stoppers 14 are protruded.

The housing 10 is provided on the front surface of the housing 10 to prevent detachment of the permanent magnet assembly 30 to be described later inserted into the installation hole 13 and the fixed permanent magnet 20 installed in the installation groove 12, An anti-departure prevention cover 15, a rear separation prevention cover 16, and an anti-deviation prevention cover 17, which are coupled to the rear and upper surfaces.

A through hole 15a is formed at the center of the front separation preventing cover 15 in which a coupling shaft 31b of a permanent magnet assembly 30 described later is inserted.

On the other hand, the housing 10 further includes a grip 18 formed at one side thereof with a hook 18a to which a hook of a conveying means such as a hoist is coupled, and is coupled to the upper surface of the housing.

The fixed permanent magnets 20 are formed in a bar shape and are formed in the mounting grooves 12 of the housing 10 with different polarities formed on the left and right with respect to the longitudinal direction.

The permanent magnet assembly 30 is inserted into the mounting hole 13 of the housing 10 and is rotatably coupled to the inside of the housing 10 and changes its polarity opposite to the fixed permanent magnet 20, 10 for generating or blocking magnetic force at the lower part of the adsorption surface 11 and includes a magnetic body 31 and a permanent magnet 32.

The magnetic body 31 is formed in a cylindrical shape having a diameter corresponding to the installation hole 13 and has an installation hole 31aa formed along the longitudinal direction on the outer circumferential surface thereof and inserted into the installation hole 13 of the housing 10, And an insertion hole 31ba formed in the outer circumferential surface of the body 31a so as to protrude from one side of the body 31a toward the front side of the housing 10. The body 31a has a diameter smaller than the diameter of the body 31a, And an engaging shaft 31b on which the engaging portion 31b is formed.

Here, the installation hole 31aa provides a region in which a permanent magnet 32 described later is installed, and the coupling shaft 31b provides a region to which a lever member 40 described below is coupled.

The permanent magnets 32 are formed in a bar shape and are formed with right and left polarities different from each other with respect to the longitudinal direction and fixed to the mounting holes 31aa of the magnetic bodies 31. [

One end of the lever member 40 is inserted into the insertion hole 31ba of the coupling shaft 31b and fixedly coupled to the coupling shaft 31ba through a fastening means such as a bolt, And extends in the outward direction to provide the user with a grip area.

The lever member 40 is coupled to one side of the coupling shaft 31b and further includes a separate protective cover 41 for protecting a region where the lever member 40 and the coupling shaft 31ba are engaged.

The lever member 40 has a first position in which the different magnetic polarities of the fixed permanent magnet 20 and the permanent magnet assembly 30 are disposed opposite to each other and a second position in which the fixed permanent magnet 20 and the permanent magnet assembly 30 have the same magnetic And serves to rotate the permanent magnet assembly 30 between the second positions where the polarities face each other.

The position fixing portion 50 is for fixing one side of the lever member 40 to one side of the housing 10 to fix the lever member 40 at an arbitrary position between the first position and the second position, 51 and support means 52. [

The fixing bracket 51 is provided on one side of the frontal departure prevention cover 15 as a plate member and has a plurality of engagement grooves 51a Is formed.

The supporting means 52 is provided on one side of the lever member 40 corresponding to the engaging groove 51a of the fixing bracket 51 so as to be movable along the longitudinal direction of the lever member 40, The latch member 52 is for holding the lever member 40 at an arbitrary position between the first position and the second position by being engaged or disengaged from any one of the plurality of latching grooves 51a, An extension bar 52b, an extension bar 52c, and a pressure bar 52d.

The engaging piece 52a is movably provided inside the one end of the lever member 40 and a latching protrusion 52aa corresponding to the latching groove 51a of the fixing bracket 51 is formed on one side of the outer surface of the lever member 40, As shown in FIG.

The elastic member 52b is interposed between the engaging piece 52a and one side of the inner surface of the lever member 40 and is engaged with the engaging piece 52aa in the direction in which the engaging protrusion 52aa is engaged with the engaging groove 51a of the fixing bracket 51 52b of the fixing bracket 51 when the pressing force is released from the pressing bar 52d to be described later by providing an elastic force to the fixing bracket 51 do.

The extension bar 52c is provided inside the lever member 40 and has one end coupled to one side of the latching piece 52a and the other end extending in the other end direction of the lever member 40. [

The pressing bar 52d is inserted into the other end of the lever member 40 and presses the other end of the extending bar 52c to press the holding piece 52a when a pressing force is applied from the outside by the pressing operation, The locking protrusion 52aa engaged with the locking groove 51a of the fixing bracket 51 is detached from the locking groove 51a of the fixing bracket 51. [

Hereinafter, the operation of the magnetic lift device capable of adjusting the magnetic force according to the embodiment of the present invention will be described with reference to the drawings.

FIGS. 6, 7, 8A and 8B are schematic views for explaining the operation of a magnetic lift device capable of adjusting magnetic force according to an embodiment of the present invention.

6 (a), when the lever member 40 is positioned at the first position, the magnetic lift device 1 capable of adjusting the magnetic force according to the embodiment of the present invention is configured such that, The magnetic poles of the permanent magnet assembly 20 and the permanent magnet assembly 30 are opposed to each other so that the magnetic force generated by the permanent magnet assembly 20 and the permanent magnet assembly 30 is transmitted to the housing 10, the object P can not be sucked through the adsorption face 11 of the housing 10.

7 (a), when the lever member 40 is rotated 180 degrees and is positioned at the second position, the fixed permanent magnets 20, as shown in Fig. 7 (b) The same magnetic polarity of the permanent magnet assembly 30 and the permanent magnet assembly 30 are arranged so as to face each other and the magnetic force generated from the permanent magnet assembly 20 and the permanent magnet assembly 30 is formed to circulate under the attracting surface 11 of the housing 10 The object P can be sucked through the adsorption face 11 of the housing 10.

Here, the magnetic force generated at the second position is the maximum magnetic force, and the magnetic force increases from the first position to the second position.

Meanwhile, the magnetic lift device 1 capable of controlling the magnetic force according to the embodiment of the present invention, when adsorbing the first object P 'having a lower weight than the object P having the weight corresponding to the maximum magnetic force, The lever member 40 does not rotate from the position where the magnetic force capable of attracting the first object P 'to the second position to the second position as shown in Fig. 8 (a) the lever member 40 is in a state of returning to the first position due to the repulsive force of the magnetic polarity of the fixed permanent magnet 20 and the permanent magnet assembly 30, as shown in Fig.

At this time, according to the present invention, the latching protrusion 52aa of the latching piece 52a provided on the lever member 40 is engaged with the latching groove 51a of the fixing bracket 51, The first object P 'can be attracted by being supported at a position where a magnetic force capable of adsorbing the object P' is generated.

As described above, the magnetic lift device 1 capable of controlling the magnetic force according to the embodiment of the present invention is configured such that the locking protrusion 52aa of the locking piece 52a is fixed to one of the plurality of locking grooves 51a of the fixing bracket 51 So that the lever member 40 is supported at an arbitrary position between the first position and the second position so that the workpiece of various weights can be picked up by one device.

As a result, it is not necessary to provide a plurality of magnetic apparatuses for adsorbing objects of various weights, thereby reducing the cost of equipment purchase.

Although the present invention has been described in connection with the preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. It is, therefore, to be understood that the appended claims will include all such modifications and changes as fall within the true spirit of the invention.

1: Magnetically adjustable magnetic lift device
10: housing 11: suction surface
12: Installation hole 13: Installation hole
14: Stopper 15: Front release cover
15a: Through hole 16:
17: top surface separation preventing cover 18:
18a: ring 20: fixed permanent magnet
30: permanent magnet combined body 31: magnetic body
31a: Body 31aa: Installation hole
31b: coupling shaft 31ba: insertion hole
32: permanent magnet 40: lever member
41: protective cover 50: position fixing portion
51: Fixing bracket 51a: Retaining groove
52: support means 52a:
52aa: locking projection 52b: elastic member
52c: extension bar 52d: pressure bar
P: object to be processed P ': first object to be processed

Claims (3)

A housing having a receiving space formed therein and having an adsorption surface on which a target to be adsorbed is formed;
A fixed permanent magnet installed on an upper side of the housing;
A permanent magnet coupling member rotatably installed in a lower portion of the fixed permanent magnet in the accommodation space;
A first position where one end is coupled to one side of the permanent magnet coupling body and a first position where different magnetic polarities of the fixed permanent magnet and the permanent magnet combined body are opposed to each other and a second position where the same magnetic polarity of the fixed permanent magnet and the permanent magnet combined body face each other A lever member for rotating the permanent magnet combination body between a first position in which the permanent magnet assembly is disposed and a second position in which the permanent magnet assembly is disposed;
A lever member which is formed at one side of at least one of the housing or the lever member and which supports one side of the lever member at one side of the housing to fix the lever member at an arbitrary position between the first position and the second position; Wherein the magnetically adjustable magnetic lift device includes a magnet. The method according to claim 1,
The position fixing unit
A fixing bracket installed at one side of the outer surface of the housing and having a plurality of engagement grooves formed along the rotation path of the lever member;
And a supporting means provided on one side of the lever member corresponding to the engaging groove so as to be movable along the longitudinal direction of the lever member and being engaged or disengaged from any one of the plurality of engaging grooves. Adjustable magnetic lift device. 3. The method of claim 2,
The support means
A latch piece movably installed inside the one end of the lever member and having a latching protrusion corresponding to the latching groove formed on one side of the outer surface so as to be exposed to the outside of the lever member;
An elastic member interposed between the engaging piece and one side of the inner surface of the lever member and providing an elastic force to the engaging piece in a direction in which the engaging projection engages with the engaging groove;
A pressing bar provided inside the lever member and having one end coupled to one side of the latching member and the other end extending toward the other end of the lever member;
And a pushing bar which is inserted into the other end of the lever member and presses the other end of the pushing bar by a pressing operation to release the engagement of the engaging projection.
KR1020150158105A 2015-11-11 2015-11-11 Magnetic lift device with controllabe magnetic force KR20170055210A (en)

Priority Applications (1)

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KR1020150158105A KR20170055210A (en) 2015-11-11 2015-11-11 Magnetic lift device with controllabe magnetic force

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KR1020150158105A KR20170055210A (en) 2015-11-11 2015-11-11 Magnetic lift device with controllabe magnetic force

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102154603B1 (en) 2020-06-25 2020-09-10 주식회사 상영마그네트 Control circuit of magnetic lift apparatus
KR20210012602A (en) 2019-07-26 2021-02-03 한국전기연구원 Magnetic lift apparatus having magnetic field control capability
KR20210117701A (en) * 2020-03-20 2021-09-29 (주)하성 Magnetic coupling device with magnetic force sizing and on / off locking

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210012602A (en) 2019-07-26 2021-02-03 한국전기연구원 Magnetic lift apparatus having magnetic field control capability
KR20210117701A (en) * 2020-03-20 2021-09-29 (주)하성 Magnetic coupling device with magnetic force sizing and on / off locking
KR102154603B1 (en) 2020-06-25 2020-09-10 주식회사 상영마그네트 Control circuit of magnetic lift apparatus

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