KR102698499B1 - Apparatus for magnetic adsorber - Google Patents

Abstract

The present invention relates to a magnetic suction device, comprising: a housing; a horizontal rotation shaft installed inside the housing; a rotating magnet installed on the horizontal rotation shaft; and a fixed magnet installed at a position corresponding to the rotating magnet, the device including a magnet section indicating a magnetization state and a demagnetization state according to the position of the rotating magnet with respect to the fixed magnet; a driving slider installed on the housing so as to be able to rise and fall between a rising position for magnetization driving and a descending position for magnetization driving; a motor section which transmits the rising and falling motion of the driving slider to the rotational motion of the horizontal rotation shaft to rotate the horizontal rotation shaft between the magnetization position and the demagnetization position; and a display section which indicates the magnetization position and demagnetization position of the horizontal rotation shaft.

Description

{Apparatus for magnetic adsorber}

The present invention relates to a magnetic suction device.

A magnetic suction device used when moving a magnetic weight has a rotating shaft installed inside a housing, a rotating magnet installed on the rotating shaft, and a fixed magnet installed at a position corresponding to the rotating magnet, and the suction magnetic force is turned on and off depending on the corresponding positions of the rotating magnet and the fixed magnet. For this purpose, a rotating shaft drive unit that rotates the rotating shaft is provided.

The rotary shaft assembly has a lifting section that is configured to be able to approach and descend and rise and fall from the top of the housing, an elevating slider that rotates the rotation shaft, and a locking section that selectively connects and disconnects the lifting section and the elevating slider.

However, in the case of conventional magnetic suction devices, the generation of magnetic attraction occurs only when the lifting unit and the lifting slider are raised together. However, if only the lifting unit is raised without the lifting slider being raised, there is a problem in that it is difficult to accurately recognize whether the magnetic attraction device is generating magnetic attraction.

Accordingly, the purpose of the present invention is to provide a magnetic suction device that allows an operator to accurately recognize whether or not the state of generation of the magnetic suction force of the magnetic suction device is present.

A magnetic suction device according to the present invention comprises a housing, a horizontal rotation shaft installed inside the housing, a rotating magnet installed on the horizontal rotation shaft, and a fixed magnet installed at a position corresponding to the rotating magnet, and a magnet section indicating a magnetization state and a demagnetization state according to a position of the rotating magnet with respect to the fixed magnet, a driving slider installed in the housing so as to be able to rise and fall between a rising position for magnetization driving and a descending position for magnetization driving, a motor section which transmits the rising and falling motion of the driving slider to a rotational motion of the horizontal rotation shaft to rotate the horizontal rotation shaft between the magnetization position and the demagnetization position, and a display section which indicates a magnetization position and a demagnetization position of the horizontal rotation shaft.

Here, the housing is provided with a lifting portion that is capable of approaching and descending upward and rising and has a guide hole for the appearance of the indicator portion, and a socket portion that selectively couples and releases the lifting portion and the driving slider, and it is preferable that the indicator portion protrudes upward through the guide hole by the driving slider when the driving slider is coupled with the socket portion.

It is preferable that the above socket portion further include a sliding socket that is integrally connected to the lifting portion and can be raised and lowered, and a locking portion that selectively engages and releases the driving slider from the sliding socket.

It is preferable that the above-mentioned lifting member further includes a lifting blocking member capable of selecting between a release state in which the lifting member can be lifted from the housing and a restraint state in which the lifting member is restricted.

It is preferable that the above-described power unit further includes a pinion gear coupled to the horizontal rotation shaft, a rack-shaped part formed on the driving slider, and at least one idle gear provided between the pinion gear and the rack-shaped part to transmit rotational force so that the horizontal rotation shaft rotates when the driving slider is raised and lowered.

According to the present invention having the above-described configuration, a worker can accurately recognize whether or not the state of generation of the magnetic attraction force of the magnetic attraction device is present, thereby improving work efficiency and preventing safety accidents.

Figure 1 is a perspective view of a magnetic suction device according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of Figure 1.
Figure 3 is a cross-sectional view of Figure 1.
Figure 4 is a cross-sectional view of Figure 1.
Figure 5 is a cross-sectional view taken along line V-V' of Figure 3.
Figure 6 is a cross-sectional view taken along line VI-VI' of Figure 1.
Figure 7 is an operating state diagram of a magnetic suction device according to an embodiment of the present invention.
Figure 8 is an operating status diagram of the latch portion and pusher shown in Figure 2.
Figure 9 is a perspective view of a magnetic suction device to which a display unit is applied according to another embodiment of the present invention.
FIG. 10 is a cross-sectional view illustrating a magnetic suction device according to another embodiment of the present invention.
Figure 11 is a usage state diagram of a magnetic suction device according to another embodiment illustrated in Figure 10.

Hereinafter, with reference to the attached drawings, a magnetic suction device according to one embodiment of the present invention will be specifically described.

Referring to FIGS. 1 to 6, a magnetic suction device (10) according to one embodiment is composed of a housing (100), a magnet portion (200), a driving slider (300), an electric portion (400), and a display portion (500).

The housing (100) is composed of a pair of mutually opposing side wall portions (102), an upper plate portion (104) and a lower plate portion (106) that close the upper opening and the lower opening formed by the side wall portions (102), and a cover (108) that covers the upper plate portion (104). A drive slider entrance hole (108a) is formed in the cover (108) through which a drive slider (300) is inserted so as to be able to move up and down in the electric unit housing (120).

On the upper part of the housing (100), a lifting member (140) having a display guide hole (144) for the appearance of a display member (500) is provided so that the lifting member can approach, descend, and rise upward from the housing (100). The lifting member (140) is provided with a connecting member (142) to which a connecting ring provided on a crane (not shown) is connected.

The housing (100) has a pair of magnetic housings (110) in which a magnet part (200) is accommodated, an electric part housing (120) provided between the pair of magnetic housings (110) in which an electric part (400) is accommodated, and a socket part housing (130) coupled to the magnetic housing (110) to support a socket part (310) so that it can be lifted.

Inside the magnetic housing (110), a plurality of magnetic plates (112) are spaced apart at regular intervals and formed integrally with the magnetic housing (110). The plates (112) are divided into front and rear sides by non-magnetic plates (not shown) installed along the central portion. Each magnetic plate (112) located on both sides of the magnetic housing (110) forms a cylindrical shape together with a pair of side walls (102).

An insertion portion (132) into which a socket portion (310) is inserted is formed inside the socket housing (130), and a blocking step (134) is formed on the upper portion of the insertion portion (132) to limit the rise of the socket portion (310). The blocking step (134) is caught by a catch step (312a) formed on both lower sides of the socket portion (310).

In addition, the socket housing (130) is provided with a handle (136) that allows a worker to hold the magnetic suction device (10) by hand when the magnetic suction device (10) is moved by hanging from a crane or the like. The handle (136) prevents the magnetic suction device (10) that is moved by hanging from a crane or the like from shaking excessively.

The magnet part (200) has a horizontal rotation axis (202) installed inside the housing (100), a plurality of rotating magnets (204) installed on the horizontal rotation axis (202), and a plurality of fixed magnets (206) installed at positions corresponding to the rotating magnets (204).

The rotating magnet (204) is composed of a pair of permanent magnets that are inserted in a semicircular shape inside a non-magnetic cylindrical body (203) that is connected to a horizontal rotating shaft (202) through a fixed key (201). In addition, a plurality of rotating magnets (204) are rotatably inserted between each magnetic body divider (112).

The fixed magnet (206) surrounds the rotating magnet (204) on the inner side of the side wall (102) of the magnetic housing (110) corresponding to the front and rear of the rotating magnet (204), and is composed of a pair of permanent magnets facing each other with the rotating magnet (204) in between. A plurality of fixed magnets (206) are fixedly installed between each magnetic body plate (112).

The magnet part (200) having the configuration described above exhibits a magnetization state and a demagnetization state depending on the position of the rotating magnet (204) with respect to the fixed magnet (206).

When the rotating magnet (204) is rotated in one direction by the horizontal rotation axis (202), the rotating magnet (204) and the fixed magnet (206) respond with the same magnetic pole, so that the magnetic plate (112) is magnetized. That is, when the magnetic plate (112) is magnetized, a magnetization state occurs in which an attractive magnetic force is generated through the bottom of the magnetic housing (110).

Conversely, when the horizontal rotation axis (202) is rotated in the other direction, the rotating magnet (204) and the fixed magnet (206) respond with different magnetic stimuli, so that the magnetic plate (112) is not magnetized. In other words, since the magnetic plate (112) is not magnetized, a state of no attraction is generated from the bottom of the magnetic housing (110).

The driving slider (300) is installed in the housing (100) so as to be able to move up and down between an upward position for magnetization driving and a downward position for magnetization driving, and drives the electric part (400). When the driving slider (300) is positioned in the upward position, the rotating magnet (204) and the fixed magnet (206) are in a magnetized state, and when the driving slider (300) is positioned in the downward position, the rotating magnet (204) and the fixed magnet (206) are in a magnetized state.

The driving slider (300) has a slider body (302) having a frame insertion portion (302a) formed therein, and a pair of supports (304) provided on the upper surface of the slider body (302) so as to be spaced apart from each other in the horizontal direction with respect to the direction of elevation of the driving slider (300). A locking part entry/exit hole (306) that allows entry/exit of the locking part (314) is formed in one of the pair of supports (304).

The above-described driving slider (300) is selectively coupled and decoupled from the lifting part (140) through the socket part (310) inserted into the socket housing (130) so as to be able to ascend and descend.

The socket part (310) is integrally connected to the lifting part (140) and has a sliding socket (312) that can be raised and lowered, and a locking part (314) that allows the driving slider (300) to be selectively caught and released from the sliding socket (312).

A catch (316) is formed on the upper inner surface of the sliding socket (312) to catch the locking portion (314). The catch (316) is formed to be sunken to a predetermined depth in the transverse direction with respect to the lifting direction of the sliding socket (312).

The locking part (314) is supported so as to be accessible to the locking part entrance/exit hole (306) of the driving slider (300). In addition, the locking part (314) has a locking end (314a) that can be engaged and released from the engaging part (316), and when the locking end (314a) is engaged with the engaging part (316), the socket part (310) and the driving slider (300) can be raised and lowered as one unit.

The locking part (314) is alternately driven by the locking part operating part so that the locking end (314a) is released from the engaging part (316) during the first lifting of the socket part (310) and the locking end (314a) is engaged with the engaging part (316) during the second lifting of the socket part (310).

The locking operating part has an elastic member (322) that applies elastic force to the locking part (314) so that the locking end (314a) of the locking part (314) is caught in the catch part (316), and a latch part (324) that moves between a latching position that resists the elastic force of the elastic member (322) and prevents the locking part (314) from moving to the catch part (316) and a latching release position that allows the locking part (314) to move to the catch part (316) and contacts and separates from the locking part (314).

The elastic member (322) is installed so as to be able to slide transversely with respect to the lifting direction of the socket part (310), and provides elasticity to the locking part (314) so that the locking end (314a) is caught by the catch part (316) during the second lifting of the socket part (310). The elastic member (322) is supported by a support pin (323) located within the end opposite to the locking end (314a).

The latch portion (324) is hinge-connected to a latch support frame (324a) that protrudes upward from the top of the cover (108) at a predetermined incline. The latch portion (324) has a pivoting end that is hinge-connected to the latch support frame (324a) and elastically supported by a latch support spring (324b), and a free end that is located on the opposite side of the pivoting end and has a latch pin (324c) extended from both sides.

At the lower end of the locking portion (314), a support groove (318) is formed by cutting a predetermined length along the direction of movement of the locking portion (314) to be supported by the free end of the latch portion (324).

The latch support spring (324b) provides elasticity to the latch portion (324) so that the free end of the latch portion (324) comes into contact with the support groove (318) of the locking portion (314) and the locking portion (314) does not move to the engaging portion (316).

The locking operating part has a pusher (326) that pressurizes the latch part (324). When the socket part (310) is lowered while the locking end part (314a) is released from the engaging part (316), the pusher (326) pressurizes the latch pin (324c) of the latch part (324) so that the free end of the latch part (324) is separated from the support groove (318) of the locking part (314). Accordingly, the locking part (314) becomes capable of moving to the engaging part (316).

The electric motor (400) is installed in the electric motor housing (120) and transmits the lifting motion of the driving slider (300) to the rotational motion of the horizontal rotation shaft (202), thereby rotating the horizontal rotation shaft (202) between the magnetization position and the demagnetization position.

This electric power unit (400) is composed of a pinion gear (402) coupled to a horizontal rotation shaft (202) and positioned inside an electric power unit housing (120), a rack-shaped part (404) formed on a driving slider (300), and at least one idle gear (406) provided between the pinion gear (402) and the rack-shaped part (404) to transmit rotational force so that the horizontal rotation shaft (202) rotates when the driving slider (300) is raised and lowered.

The display unit (500) is installed so as to be retractable in the display guide hole (144) provided in the lifting unit (140) and indicates the magnetization position and release position of the horizontal rotation shaft (202).

The display part (500) is configured with a display body part (502) that is positioned so as to be liftable on the display guide hole (144) and has a flange part (504) that extends radially from the outer periphery, and a separation prevention ring (506) that is installed on the display guide hole (144) and supports the flange part (504) so that the display body part (502) does not separate from the display guide hole (144). A through hole (506a) through which the display body part (502) is inserted is formed in the center of the separation prevention ring (506).

The display unit (500) having the configuration described above is raised by integrally connecting the drive slider (300) and the socket unit (310) by the locking unit (314) so that it comes into contact with the upper surface of the support (304) formed on the drive slider (300) and protrudes upward through the display guide hole (144).

The reason why this display part (500) is necessary is that, as shown in (b) of Fig. 7, when the locking part (314) is prevented from moving to the engaging part (316) by the latch part (324), the driving slider (300) does not rise when the socket part (310) rises.

That is, since the socket part (310) rises together with the lifting part (140), the worker recognizes that the magnet part (200) is in a magnetized state. However, in reality, since the driving slider (300) does not rise and the horizontal rotation shaft (202) does not rotate, the magnet part (200) is in a disengaged state. Therefore, the display part (500) enables the worker to accurately recognize whether the magnet part (200) is in a disengaged state.

Meanwhile, FIG. 9 is a perspective view of a magnetic suction device to which a display unit is applied according to another embodiment of the present invention.

Referring to FIG. 9, a display unit (500-1) according to another embodiment may be installed on the side of the housing (100) so as to be linked to the rotation of the horizontal rotation shaft (202) and may display the magnetization position and release position of the horizontal rotation shaft (202).

On the side of the housing (100), an indicator mark (160) is formed to indicate the magnetization state and demagnetization state of the magnet part (200).

The display unit (500-1) is composed of a rotation display body unit (502-1) that is integrally connected to the horizontal rotation axis (202) at an end of the horizontal rotation axis (202) so as to rotate together, and a rotation display bar (504-1) that extends from the rotation display body unit (502-1).

In addition, a protective cover (510) is attached to the side of the housing (100) to prevent the display portion (500-1) from being damaged by collision with the outside. The protective cover (510) is made of a transparent material so that the operator can easily identify the display portion (500-1).

The operation of the magnetic suction device (10) according to an embodiment of the present invention having the configuration described above will be described.

First, as shown in (a) of Fig. 7, the rack-shaped portion (404) formed on the driving slider (300) is positioned in a lowered state to the bottom of the electric unit housing (120), and the latch pin (324c) of the latch portion (324) is supported by contact with the support groove (318) of the locking portion (314), so that the locking portion (314) is not moved to the locking position due to the elastic force of the elastic member (322) and is positioned in the unlocked position.

At this time, the latch pin (324c) of the latch portion (324) is inserted between a pair of pushers (326) coupled to the socket portion (310) as shown in (a) of Fig. 8. In addition, the display portion (500) is pressed by the stand (304) so that the upper end protrudes above the lifting portion (140).

In this state, when the connecting part (142) of the lifting part (140) is connected to a transport device such as a hoist or crane through a rope or the like to raise the lifting part (140) for the first time, only the lifting part (140) and the socket part (310) coupled to the lifting part (140) are raised as shown in (b) of FIG. 7. That is, since the driving slider (300) does not rise, the magnet part (200) maintains a state of being in a state where no attractive magnetic force is generated. At this time, the latch part (324) is positioned at the latching position as shown in (b) of FIG. 8, and the latch pin (324c) of the latch part (324) is separated from a pair of pushers (326).

In addition, the display portion (500) is released from the pressure by the stand (304) so that the upper end of the display portion (500) enters the interior of the display guide hole (144).

If the lifting member (140) is continuously raised, the catch (312a) of the socket member (310) catches the blocking member (134) of the socket member housing (130), thereby allowing the entire magnetic suction device (10) to be separated from the ground. When the magnetic suction device (10) is separated from the ground, the magnetic suction device (10) can be transported to the object to be transported and positioned on the upper surface of the object to be transported.

After the magnetic suction device (10) is placed on the upper surface of the transported object, the lifting part (140) is lowered so that it is positioned on the upper part of the housing (100), as shown in (c) of FIG. 7. When the lifting part (140) is lowered, the socket part (310) is also lowered. Accordingly, as shown in (c) of FIG. 8, the pusher (326) presses the latch pin (324c) of the latch part (324) downward, so that the latch pin (324c) that is supported by contact with the support groove (318) of the locking part (314) is detached from the support groove (318). That is, the locking part (314) is positioned in the latching release position that allows it to move to the engaging part (316).

When the latch part (324) is positioned in the unlocked position, the locking part (314) is locked to the engaging part (316) of the socket part (310) through the locking part entry/exit hole (306) by the elastic force of the elastic member (322) through the locking end part (314a), as shown in (c) of Fig. 7, so that the driving slider (300) can rise together with the socket part (310). At this time, the display part (500) is pressed by the stand (304) so that the upper end protrudes above the lifting part (140).

In this state, when the lifting part (140) is raised for the second time, as shown in (d) of Fig. 7, the driving slider (300) is raised together with the socket part (310), and the electric part (400) is driven to rotate the horizontal rotation shaft (202). When the horizontal rotation shaft (202) is rotated, the rotating magnet (204) and the fixed magnet (206) respond with the same magnetic pole, so the magnetic plate (112) of the magnetic body is magnetized, and the magnetic part (200) is in a magnetized state in which an attractive magnetic force is generated.

Thereafter, when the lifting part (140) is lowered so that it is positioned at the top of the housing (100), the magnetic suction device (10) returns to the initial state as shown in (e) of Fig. 7.

FIG. 10 is a cross-sectional view illustrating a magnetic suction device according to another embodiment of the present invention.

Referring to FIG. 10, a magnetic suction device according to another embodiment is similar to the first embodiment except that a plurality of connecting parts (142) to which connecting rings provided on a crane (1), etc. are connected are provided as the area of the lifting part increases, and a lifting blocking part (150) is installed in the housing (100) that can select between a release state in which the lifting part (140) can be lifted from the housing (100) and a restraint state in which the lifting part is restricted.

Therefore, redundant explanations are omitted, and the same symbols as in the embodiment are used for redundant configurations.

By increasing the area of the lifting member (140), a plurality of magnetic suction devices (10) can be installed on one crane (1), etc., as shown in Fig. 11. That is, since the lifting member (140) is connected to the crane, etc. through a plurality of connecting members (142), shaking is minimized when the magnetic suction device (10) is moved away from the ground.

If the magnetic suction device is separated from the ground through a single connection as in one embodiment, the magnetic suction device shakes excessively, making it difficult to move the magnetic suction device by hanging it stably.

The lifting blocking member (150) prevents the lifting member (140) from rising from the housing (100) when the magnetic suction device (10) is not used and is stored. The lifting blocking member (150) is composed of a rotating body (152) that is installed apart from the lifting axis of the lifting member (140) and rotates between a locking position and a release position, and a locking member (152a) that extends in the radial direction of the rotating body (152). The locking member (152a) is locked to a locking blocking step (138) formed in the housing (100) when the rotating body (152) is positioned at the locking position. The catch block (138) causes the catch hole (152a) to catch when the rotating body (152) is positioned at the catch position, thereby restricting the lifting part (140) from rising along the lifting axis.

Here, a pair of positioning grooves (152b) are formed on the outer periphery of the rotating body (152), and the pair of positioning grooves (152b) are formed to correspond to the engaging position and the releasing position of the engaging member (152a). In addition, a ball plunger (146) is provided on the lifting member (140) to press the positioning groove (152b) to prevent the rotating body (152) from rotating when the engaging member (152a) is positioned at the engaging position or releasing position.

Although the embodiments of the present invention have been described with reference to the attached drawings, it will be understood by those skilled in the art that the present invention can be variously modified and changed within a scope that does not depart from the technical spirit of the present invention as described in the claims below.

100; Housing
110; Magnetic Housing
120; Power Housing
130; Socket Housing
140; In-yang-bu
150; Lifting and lowering block
200; magnet part
300; Drive Slider
310; socket part
400; electric motor
500; display

Claims (5)

housing;
A magnet section having a horizontal rotation axis installed inside the housing, a rotating magnet installed on the horizontal rotation axis, and a fixed magnet installed at a position corresponding to the rotating magnet, and exhibiting a magnetization state and a demagnetization state depending on the position of the rotating magnet with respect to the fixed magnet;
A drive slider installed in the above housing to be able to rise and fall between a rising position for magnetizing and a descending position for magnetizing;
A motor that transmits the lifting motion of the above-mentioned driving slider to the rotational motion of the above-mentioned horizontal rotation shaft to rotate the above-mentioned horizontal rotation shaft between the magnetization position and the mooring position; and
Includes a display unit that indicates the magnetization position and release position of the horizontal rotation axis;
The housing is provided so as to be able to approach, descend, and ascend upwardly, and further includes a lifting part having a guide hole for indicating the appearance of the display part, and a socket part for selectively connecting and disconnecting the lifting part and the driving slider.
A magnetic suction device characterized in that the display portion protrudes upward through the display guide hole by the driving slider when the driving slider is coupled with the socket portion.
delete In claim 1,
The above socket part,
A sliding socket that is connected integrally with the above-mentioned lifting part and can be raised and lowered,
A magnetic suction device further comprising a locking portion for selectively engaging and releasing the driving slider from the sliding socket.
In claim 1,
A magnetic suction device further comprising a lifting blocking unit capable of selecting between a release state in which the lifting unit can rise from the housing and a restraint state in which the lifting unit is restricted from rising.
In claim 1,
A magnetic suction device wherein the above-mentioned power unit further includes a pinion gear coupled to the horizontal rotation shaft, a rack-shaped part formed on the driving slider, and at least one idle gear provided between the pinion gear and the rack-shaped part to transmit rotational force so that the horizontal rotation shaft rotates when the driving slider is raised and lowered.