KR20020036825A - Apparatus for switching adsorptive magnetic power for magnetic adsorber - Google Patents

Abstract

PURPOSE: An adsorption force switch system of a magnetic adsorber is provided to simplify the structure of the switch system, to easily operate the magnetic adsorber, and to remove a possibility of danger. CONSTITUTION: Rotary magnet(15) fixed to a rotating shaft(13) with a ring gear(12) and fixed magnets are installed in a magnet case(10). A slider(20) having a fixing protrusion part(23) protruded to the lower part of a slide plate(21) and slider arms(24) is inserted in an incision hole formed on a cover plate(11) of the magnet case to be able to move. A rack gear rotating the ring gear is installed to a side of the slider arm. A second ring gear(18) engaged with the ring gear and rack gear is installed in the incision hole and slide cases(30) controlling the motions of the slider is fixed on the cover plate of the magnet case. The slide case has hinge coupling with a stopper(40), and a spring(50) pressurizing the stopper toward the slide is installed between the stopper and side wall. A rotating shaft(34) having a lever(33) is supported by both rotor cases(36), and rotors(35) pushing the stoppers toward side plates are installed to the rotating shaft.

Description

Adsorptive magnetic switch device of magnetic adsorber {Apparatus for switching adsorptive magnetic power for magnetic adsorber}

The present invention relates to an adsorption magnetic force switch device of the magnetic adsorber, and more particularly, by rotating the ring gear to release the locking state of the slider for selectively responding to the magnetic poles of the rotating magnet and the stator magnet by a simple lever operation. By moving the slider downward in the On state in which the slider is moved upward, the off state of the suction magnetic force and the latching state of the slider are automatically set and maintained, The present invention relates to an adsorption magnetic switch device of a magnetic adsorber, which simplifies the structure and makes the operation of the magnetic adsorber easier and can eliminate the risk of a disaster caused by the use of the magnetic adsorber.

In general, the magnetic suction machine is provided with a rotating magnet fixed to the rotating shaft at the center of the rectangular magnet case, and a fixed magnet corresponding to the rotating magnet is installed at both sides of the magnet case, so that the rotating magnet is rotated in one direction. Since the magnets and the stator magnets correspond to the same magnetic poles, the magnetism is generated from the magnet case, and when the rotating magnets are rotated in the other direction, the magnetic magnets and the stator magnets correspond to different magnetic poles to offset the magnetic attraction force. The magnetic adsorber is installed in a conveying device such as a crane to adsorb and transport the heavy plate of the magnetic material by magnetic force.

As described above, in order to set the adsorption magnetic force of the magnetic adsorber on or off, the rotating shaft on which the magnet is fixed should be rotated by a predetermined angle (about 180 °). The lever is integrally connected to the rotating shaft to operate the on / off state of the magnetic attraction force by manpower, but it is inconvenient for the operation that requires a lot of force for the rotation of the lever, In recent years, due to the deterioration of the efficiency of the work and the safety of the operator due to the adsorption transfer of the large steel sheet, a device that automatically turns on and off the adsorption magnetic force of the magnetic adsorber is used.

As a conventional apparatus for automatically turning on and off the adsorption magnetic force of the magnetic adsorber as described above, a ring gear is provided at the center of the rotating shaft to which the rotating magnet is fixed, and the upper and lower sides are provided through the center of the magnet case. By installing the rack gear engaged with the ring gear, the rotating magnet is rotated by 180 ° with the ring gear in accordance with the shanghai movement of the operating hole, so that the suction magnet is turned on and off. An automatic adsorption and magnetic force switch of the magnetic adsorption device for automatically adjusting the state is disclosed and disclosed in Korean Laid-Open Patent Publication No. 1998-72201 (published October 26, 1998).

However, in the conventional adsorption magnetic force automatic switching device as described above, the ring gear rotates together with the rotary shaft only when the operation tool is raised, and sets the adsorption magnet force on or off. It is configured to rotate about the rotating shaft. To this end, a separate connecting shaft rod is installed at the center of the rotating shaft, and a cylindrical body integrally formed with the ring gear is installed on the connecting shaft rod together with the bearing, and the inside of the cylindrical body In the engaging portion having an elastic piece, the cam body and the disc formed integrally with the cam body to be caught on the engaging portion should be installed in consideration of the rotational direction of the rotating shaft, respectively, one end of the rotating shaft on (On) or off ( The ratchet-shaped magnetic pole fixing disc in order to maintain the off state must be installed together with the stopper device (locking device), which makes the overall installation structure very complicated. There was a problem.

In addition, when the suction magnet is set to the off state and the magnetic suction unit is lifted up by the crane in the first state in which the magnetic suction unit is placed on the ground, the operating tool is first raised by the magnetic weight of the magnetic suction unit itself. In this way, as the operation tool rises and the adsorption magnetic force of the magnetic adsorber is immediately turned on, various foreign substances and impurities present in the vicinity of the magnetic adsorber adhere to the surface of the magnetic adsorber. As a result, the adsorption force of the iron plate by the magnetic adsorber is somewhat lowered, which causes trouble in the smooth adsorption transfer of the iron plate, and also causes a problem that is a great danger to the safety of the worker.

Also, if the magnetic plate is adsorbed by the magnetic adsorber with the adsorptive magnetic force set to On, the iron plate is moved to a desired place, and then the magnetic adsorber is lowered together with the iron plate by using a crane. When the actuator is lowered, the ring gear rotates about the axis of rotation, so that the adsorption magnetic force is not switched off at the same time as the actuator is lowered. In addition to the cumbersome maneuvering required to raise it once more, the lifting mechanism is raised to turn off the adsorption magnetic force and then the magnetic adsorber is put down and lifted again. As it is set to the state, it was difficult for the operator to accurately grasp the state of the magnetic adsorber and work.

In particular, when the adsorption magnetic force is set to the on state, a strong repulsive force acts between the rotating magnet and the stator magnet because the rotating magnet and the stator magnet correspond to the same magnetic poles, and thus the rotating magnet is centered on the rotating shaft. The rotational direction of the rotating shaft becomes impossible because the ring gear is engaged with the rack gear, and the rotation is impossible, but the free rotation in the other direction is controlled only by the spring force of the stopper device. (On) state becomes very unstable, which is a big risk factor for worker's safety, and in order to prevent the above phenomenon, the magnetic pole of the rotating magnet is installed somewhat eccentric with the magnetic pole of the fixed magnet, but it is completely off Is a problem that does not achieve the state and the result that a certain amount of adsorptive force always acts on the magnetic adsorber There.

The present invention has been made to solve the above-mentioned conventional problems, the magnetic force adsorption switch device of the magnetic adsorption device according to the present invention is engaged state of the slider to rotate the ring gear to selectively correspond to the magnetic poles of the rotating magnet and the stationary magnet The lever is released by simple lever operation, and the slider is moved to the lower position while the slider is released from the on state. By setting and maintaining the configuration, the technical problem of the present invention is to simplify the overall structure of the switch device and to facilitate the operation of the magnetic adsorber and to eliminate the risk of a disaster caused by the use of the magnetic adsorber.

The present invention for achieving the above technical problem, a rotating magnet which is fixed to the rotating shaft with a ring gear and a fixed magnet corresponding to both sides of the rotating magnet is installed in the magnet case, formed on the cover plate of the magnet case In the incision hole, a slider formed at a lower side of the slide plate having a hook is protruded to both sides, and a slider having a pair of slide arms extending downward is inserted to be movable upward and downward, and a ring is provided at one slide arm of the slider. In the rack gear that rotates the gear is integrally installed, the secondary ring gear having a larger diameter than the ring gear and the outer peripheral surface is engaged to the ring gear and the rack gear, respectively, is rotatably installed in the center of the incision hole, The slide plate and the engaging portion are inserted into the upper surface of the cover plate of the magnet case to the slider A slide case for clamping down movement is fixedly installed, and the slide case is hingedly coupled with a stopper having a locking end portion at both openings of the body through which the slide hole passes, and presses the stopper toward the slider side between the stopper and the side plate of the body. Spring is installed, the front of the body is installed so that the rotating shaft having a lever is rotated by both rotor cases, the inside of the rotor case is rotated through the exit hole formed in the body to push the stopper toward the side plate side It is characterized in that the rotor is fixed on the rotating shaft.

1 is an exploded perspective view showing an adsorption magnetic force switch device of the magnetic adsorption apparatus according to the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 and 4 are front and side cross-sectional views showing an off state of the adsorption magnetic force switch device of the magnetic adsorber according to the present invention.

Figure 5 is a front sectional view showing a state of releasing the slider by the switch device of the present invention.

Fig. 6 is a sectional front view showing an on state of adsorptive magnetic force by the switch device of the present invention.

Figure 7 is an exploded perspective view showing another embodiment of the present invention.

8 is a partial side cross-sectional view showing another embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10 magnet case 11 cover plate 12 ring gear

13: rotating shaft 14,14 ': stationary magnet 15: rotating magnet

16: partition plate 17: incision 18: secondary ring gear

19: rotating support plate 20: slider 21: slide plate

22: hook 23: hook 24: slide arm

25: rack gear 30: slide case 31: slide ball

32: mounting plate 33: lever 34: rotary shaft

35: rotor 36: rotor case 37: side plate

38: bearing case 39: hinge pin 40: stopper

41: pin hole 42: locking end 43: support plate

44: pin 50: spring 60: elastic member

61: fixing part 311: side plate 312: the hole hole

331: pressure bolt 332: spring 333: close contact

411: shaft hole 412: locking end 413: locking jaw

The present invention for achieving the above object will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing an adsorption magnetic force switch device of the magnetic adsorber according to the present invention, Figure 2 is a cross-sectional view taken along the line AA of Figure 1, Figures 3 and 4 are off of the adsorption magnetic force switch device of the magnetic adsorber according to the present invention Fig. 5 is a front sectional view showing a release state of the slider by the switch device of the present invention, and Fig. 6 is a sectional view showing the off state of the adsorbed magnetic force by the switch device of the present invention. Is a cross-sectional view showing the state.

In the description of the reference numerals, reference numeral 13a, which is not described, is a shaft support plate, 18a is a rotating shaft of a secondary ring gear, 30a is a body of a slide case, 30b is a hole of the rotor, 32a is a fixing bolt of a seat plate 37a represents a fastening bolt of the side plate, 38a represents a bearing support, 38b represents a ball bearing, and 39a and 43a represent pin holes, respectively.

First, as shown in FIGS. 1 and 2, a general configuration of a magnetic suction device in which the switch device of the present invention is installed, is rotated by both shaft support plates 13a at an inner center of the magnet case 10 having a rectangular parallelepiped shape. A ring gear 12 and a disk-shaped rotating magnet 15 are integrally installed with the rotating shaft 13 between the partition plates 16 through which the rotating shaft 13 is rotatably installed. At positions corresponding to the rotating magnets 15, the stationary magnets 14 and 14 'are fixed to both sides of the partition plate 16, respectively.

In addition, the cover plate 11 fixedly installed on the upper surface of the magnet case 10 is formed with a long hole-shaped cutting hole 17, the slider 20 formed in the form of "형태" through the cutting hole 17 The slide arm 24 is installed to be movable up and down, the slider 20 is a lower portion of the slide plate 21 in the form of a square plate, the locking portion 23 is projected to both sides simply downwards The slide arm 24 is simply formed to extend inwardly, one side of the slide arm 24 is a rack gear 25 for rotating the ring gear 12 is formed integrally with the slide arm 24, the slide The head part of the board 21 is provided with the hook 22 for connecting the slider 20 to a crane etc.

As described above, the switch device of the present invention installed in a magnetic suction device including the magnet case 10 and the slider 20 to turn on or off the suction magnetic force is as shown in FIGS. 1 to 4. Similarly, the central portion of the cutout hole 17 formed in the cover plate 11 of the magnet case 10 has a diameter larger than that of the ring gear 12 and the outer circumferential surface thereof is a rack gear of the ring gear 12 and the slider 20. Secondary ring gears 18 meshed with 25 are rotatably provided.

The secondary ring gear 18 is a ring gear by the vertical movement of the slider 20 even if the rack gear 25 provided on the slide arm 24 does not directly contact the ring gear 12 provided on the rotary shaft 13. In accordance with the present invention, the slide plate 21 and the locking portion 23 of the slider 20 protrude to the upper surface of the magnet case 10 while allowing the 12 to rotate left and right by an angle of 180 °. In order to allow the slider 20 to be inserted into the slide case 30, the rotary shaft 18a of the secondary ring gear 18 is attached to the rotary support plate 19 fixed to both sides of the incision hole 17. It is inserted and rotatably supported at the center of the incision 17.

In addition, the slide case 30 is a key component of the present invention for selectively setting the moving force of the slider 20 to set the adsorption magnetic force on or off. A slide hole 31 into which the slide plate 21 and the engaging portion 23 of the slide plate 31 is inserted is formed through the body 30a, and the cover plate 11 of the magnet case 10 is disposed below the body 30a. The seat plate 32 is fixed to the upper surface is fixed by bolting or welding, etc., the bearing case 38 is supported in the openings on both sides of the body 30a to support the ball bearing 38b for smooth reciprocation of the slider 20. Is installed up and down.

The bearing case 38 installed above the bearing case 38 supports the ball bearing 38b to the side of the slide plate 21 of the slider 20 and simultaneously raises the slider 20 when the slider 20 is raised. It is to prevent the slider 20 from falling out of the body 30a of the slide case 30 so that the engaging portion 23 of the 20 is caught on the lower side of the bearing case 38, 38 is for allowing the ball bearing 38b to be supported by the slide arm 24 side of the slider 20.

In addition, the stopper 40 is hinged by the hinge pin 39 to the openings formed at both sides of the body 30a of the slide case 30 so as to be inserted into the body 30a of the slide case 30. A spring 50 for pressing the stopper 40 toward the slider 20 is hinged to one side of the stopper 40 between the stopper 40 and both side plates 37 of the slide case 30.

The stopper 40 has a pin hole 41 through which the hinge pin 39 is inserted, and is formed through the head of the body, and a locking end portion 42 which is caught by the locking portion 23 of the slider 20 at the lower side of the body. ) Is bent toward the side plate 37 side at an angle of about 10 to 30 degrees, and a pair of support plates 43 through which pin holes 43a penetrate are formed extending toward the side plate 37 at one side of the body. The spring 50, which is hinged by the pin 44 between the support plates 43 of the stopper 40, connects a pair of torsion springs in parallel to each other so that one end thereof is connected to the stopper 40. It is supported by the part, and the other end is formed so that it may be supported by the inner side surface of the side plate 37.

In addition, the rotor case 36 protrudes from both sides on the front surface of the body 30a of the slide case 30, and a rotation shaft having a lever 33 at the center between the rotor case 36. Both ends of 34 are penetrated through each rotor case 36 so that rotation of the rotation shaft 34 is supported by the rotor case 36, and a slide case 30 is formed inside the rotor case 36. Rotor 35 for pushing the stopper 40 toward the side plate 37 while being roamed into the inside of the slide case 30 through the inlet hole 30b formed in the front surface of the body 30a of the rotary shaft 34 ) Consists of a unit installed integrally.

If described in detail with reference to the accompanying drawings the working relationship of the present invention made of the above configuration as follows.

First, in the state illustrated in FIGS. 3 and 4, the rotating magnet 15 fixed to the rotating shaft 13 corresponds to different magnetic poles from the fixed magnets 14 and 14 ′ on both sides, so that the adsorption generated from the magnetic adsorber is absorbed. As shown in the figure, the lower side of the engaging portion 23 of the slider 20 is supported on the upper surface of the cover plate 11 of the magnet case 10, and the slide arm of the slider 20, as shown in FIG. 24 is inserted into the bottom part of the magnet case 10 through the incision hole 17, and the ring gear 12 and the secondary ring gear 18 are inserted between each slide arm 24, The outer circumferential surface of the ring gear 18 is engaged with the ring gear 12 and the rack gear 25 of the slider 20, respectively, and the engaging ends 42 of the stoppers 40 hinged to both sides of the slide case 30. ) Is in a state of being caught on both sides engaging portion 23 of the slider 20 by the elastic force of the spring (50).

When the hook 22 of the slider 20 is connected to an unillustrated crane in the off state as described above, the magnetic adsorber is lifted upward, and the magnet case 10 and the slide case 30 are connected to the slider 20. As it is lifted to the top with the), the OFF state of the magnetic adsorption is maintained continuously, and thus placed on the upper surface of the iron plate to be transferred to the magnetic adsorber maintained in the OFF state.

As described above, in a state where it is placed on the upper surface of the iron plate to transfer the magnetic adsorber by using a crane, the lever 33 of the rotary shaft 34 installed in front of the slide case 30 by a manpower of 90 degrees When rotated upwards, as shown in FIG. 5, the rotor 35 fixed to both ends of the rotation shaft 34 rotates into the slide case 30 through the concave hole 30b, thereby. Accordingly, the rotor 35 pushes the stoppers 40 on both sides toward the side plate 37 while compressing the spring 50, so that the locking end portions 42 of the stoppers 40 are locked by the slider 20. ), The slider 20 is released.

When the magnetic suction device is lifted upward by using a crane connected to the hook 22 of the slider 20 in the unlocked state of the slider 20 as described above, only the slider 20 is moved upward by the weight of the magnetic suction device. Due to this, the secondary ring gear 18 meshed with the rack gear 25 of the slider 20 is turned left (counterclockwise) in FIG. 5 and the ring gear meshed with the secondary ring gear 18 at the same time. 12 rotates clockwise in the drawing, so that the rotary shaft 13 integrally installed with the ring gear 12 and the rotating magnet 15 fixed to the rotary shaft 13 are combined with the ring gear 12. Start to rotate

When the slider 20 rises to a certain extent at the initial point of time when the slider 20 rises as described above, the locking portions 23 of both sides of the slider 20 are caught by the rotor 35. Even if () is caught, since the rotor 35 is easily rotated and restored to the initial position about the rotation axis 34 as the slider 20 is raised, it does not cause any obstacle to the rise of the slider 20. This makes it possible to continuously raise the slider 20.

When the slider 20 continuously rises as described above, as shown in FIG. 6, both side engaging portions 23 of the slider 20 are placed on the bearing case 38 positioned on the inner upper side of the slide case 30. As a result, the magnetic adsorber is raised together with the slider 20 by the crane, and at the same time, the ring gear 12 is rotated 180 degrees due to the rotation of the secondary ring gear 18 according to the rise of the slider 20. By turning left at an angle, the rotating magnet 15 is turned on with the same magnetism as the stator magnets 14 and 14 ', so that the iron plate is also magnetic by the adsorption magnetism generated from the magnetic adsorber. It will rise with the adsorber.

As described above, when the iron plate is moved to the required place by adsorbing the iron plate by the magnetic adsorber, and then the magnetic adsorber is lowered to the ground together with the iron plate tube, the slider (in the On state shown in FIG. 6) 20 is lowered due to its own weight, the slider 20 is continuously lowered to both ends of the engaging portion 23 of the slider 20 is lowered to the engaging end 42 side of the stopper 40, the slider Since the rotor 35 is in the state of being restored to the initial position during the ascending process of the 20, the locking end portions 42 of the stopper 40 are caught by both sides of the slider 20 by the elastic force of the spring 50. (23) is automatically caught.

In addition, the rotation of the secondary ring gear 18 according to the lowering of the slider 20 causes the ring gear 12 to turn right at an angle of 180 °, so that the rotating magnets 15 are fixed magnets 14 and 14 '. ) Is restored to the off state (the first state shown in FIG. 3) of the adsorbed magnetic force corresponding to the different magnetic poles, and in this state, the magnetic adsorber used for the adsorption transfer of the steel plate is lifted using a crane. When raised, the magnetic adsorber immediately separates from the grid and falls off.

After separating the magnetic adsorber from the iron plate as described above, place the magnetic adsorber on the upper surface of the other iron plate to be transported using a crane, and then continuously adsorb and transfer the iron plate using the same method as described above. When the transfer operation is completed, the magnetic adsorber which automatically sets and maintains the off state of the adsorptive magnetic force can be stored and used again.

7 and 8 show another embodiment of the adsorption magnetic force switch device of the magnetic adsorber according to the present invention, Figure 7 is an exploded perspective view showing another embodiment of the present invention, Figure 8 is another embodiment of the present invention Some side cross-sectional views are shown, and the unexplained reference numeral 311a in the description of the reference numerals for the drawings indicates the shaft hole.

Adsorption magnetic force switch device of the magnetic adsorber according to another embodiment of the present invention is that the stopper 40 for operating the adsorption magnetic force in the on (On) or off (Off) state is provided on the front side of the slide case (30) Since the rest of the configuration except for the installation position of the stopper 40 is the same as the embodiment of the present invention, the description of the configuration and the working relationship according to another embodiment of the present invention provides an installation position and the working relationship of the stopper 40. I will focus only on.

7 and 8, a trapezoidal side plate 311 is provided on both sides of the body 30a of the slide case 30 through which the slide hole 31 is formed. Rotating shaft 34 is formed extending from the upper portion of the upper portion 30 to the lower mounting plate 32, the lever 33 is fixed to one end between the side plate 311 and the rotor 35 is fixed to both end sides. It is rotatably inserted into the shaft hole (311a) of the side plate 311, the lever 33 is provided with a pressure bolt 331 for pressing the close contact 333 to the side plate 311 side by the elastic force of the spring 332. The rotor 35 is fixed to both ends of the rotation shaft 34 to be located on the inner side of the side plate 311.

In addition, a stopper 40 for intermittent vertical movement of the slider 20 is installed on the rotor 35 side of the rotary shaft 34 to enable free rotation with respect to the rotary shaft 34. The stopper 40 described above. The head has a locking jaw 413 which is caught by the rotor 35 of the rotary shaft 34 in accordance with the rotation of the lever 33 is formed adjacent to the shaft hole 411, the lower end of the slide case A locking end portion 412 which is elastically retracted through the retreating hole 312 formed at the front side of the body 30a of the 30 is formed.

The locking end portion 412 of the stopper 40 is formed to be cut in a roughly "a" shape, the elastic member 60 is fixed to the side plate 311 a portion extending downward from the locking end portion 412 formed as described above It is supported at the front side of the body (30a) of the slide case 30 by the elastic force of, the other portion is inserted into the inside of the slide case 30 through the recess hole 312, so that both sides of the slider 20 (23) is caught.

The elastic member 60 may be a spring in the form of a plate such as shown in Figures 7 and 8, the side plate 311 is fixed to the support that can support the coil spring to the stopper ( 40 may be supported by the coil spring, connecting each stopper 40 with a connecting rod, and then pulling the connecting rod toward the body 30a of the slide case 30 between the connecting rod and the seating plate 32. The tension spring can also be fixed.

As shown in FIG. 8, the working relationship according to another embodiment of the present invention having the above configuration has the end of the stopper 40 in a state in which the rotor 35 of the rotating shaft 34 is vertically erected. As the 412 protrudes into the slide case 30 by the elastic force of the elastic member 60, the locking portion 23 of the slider 20 is caught by the locking end 412 of the stopper 40, so that the slider 20 is in an off state in which it cannot move upward.

When the lever 33 is rotated in the direction of the arrow on the drawing in the off state as described above, the rotor 35 fixed to the rotating shaft 34 rotates in the direction of the arrow with the lever 33 to stop the stopper 40. The stopper 40 is pressed, and thus the stopper 40 inserted freely on the rotation shaft 34 is pushed forward while overcoming the elastic force of the elastic member 60 and the stopper 40 at the same time. As the locking end portion 412 of the ()) is exited to the outside of the slide case 30, the locking state of the slider 20 by the stopper 40 is released.

When the pressure bolt 331 on the lever 33 side is tightened in the above state, the close contact 333 interposed between the lever 33 and the side plate 311 is the side plate 311 by the elastic force of the spring 332. Since it is firmly adhered to the side, the rotating shaft 34 is not free to rotate in the opposite direction of the arrow due to the elastic force of the elastic member 60, thereby enabling to stably maintain the release state of the slider 20. .

When the magnetic suction device is lifted upward by using the crane connected to the hook 22 of the slider 20 in the unlocked state of the slider 20 as described above, as described in the embodiment of the present invention, the slider ( 20) as the ascending magnetic force of the magnetic adsorber is turned on (On) and at the same time both the engaging portion 23 of the slider 20 to rotate the rotor 35 in the direction opposite the arrow, after the use of the magnetic adsorber When the magnetic suction device is put down again, the slider 20 is lowered and the magnetic suction device is turned off, and at the same time, the engaging end 412 of the stopper 40 is moved by the elastic force of the elastic member 60 to the slider 20. Will be automatically caught on both sides of the locking portion (23).

As described above, the adsorption magnetic force switch device of the magnetic adsorber according to the present invention includes a stopper 40 and a stopper 40 for locking the slider 20 to the slide case 30 into which the slider 20 is inserted. By installing the rotor 35 to release the locking state of the slider 20 and the lever 34 for the rotation of the rotor 35, the on state of the adsorption magnetic force generated from the magnet case 10 is provided. It is possible to set by a simple rotation operation of the lever 34, so that the adsorption magnetic force set in the Off (off) at the same time as the slider 20 is lowered automatically fixed by the stopper 40, the switch While the overall structure of the device is very simple, it is possible to effectively control the on and off states of the adsorbed magnetic force.

In addition, even when the magnetic adsorber is connected to a crane or the like in the initial state in which the magnetic adsorber is set to the ground and the magnetic adsorber is set to the ground, the adsorption magnetic force of the magnetic adsorber is always turned off by the stopper 40. As it is maintained in the state, as in the conventional case, various foreign matters or impurities existing in the vicinity of the magnetic adsorber are not attached to the surface of the magnet case 10 by magnetic force, thereby adsorbing the iron plate by the magnetic adsorber at all times. Since it can be maintained at a constant level, smooth adsorption and transport of the steel plate is possible, and it can greatly contribute to preventing accidents of workers.

In addition, by adsorbing the iron plate with a magnetic adsorber set to the adsorption magnetic force (On) state to move the iron plate to a desired place and then lower the iron plate together with the magnetic adsorber using a crane, the slider 20 of the magnetic adsorber At the same time, the adsorption magnetic force of the magnetic adsorber is automatically turned off due to its own weight, and thus the cumbersome operation of lifting the slider 20 once more to turn off the adsorption magnetic force as in the conventional case. In addition, the slider 20 is always raised when the slider 20 is raised, and when the slider 20 is lowered, it is always off when the slider 20 is lowered. Since the state of Off is always maintained unless the lever 34 is operated, the operator can reliably determine the on and off states of the adsorbed magnetic force, thereby making it easier to operate the magnetic adsorber. Become .

In particular, the adsorptive magnetic force is set to an on state, so that a strong repulsive force acts between the rotating magnet 15 and the stationary magnet 14, 14 ′, so that the rotating magnet 15 rotates about the rotating shaft 13. Even if a force to be applied is applied, the ring gear 12 fixed to the rotation shaft 13 is engaged with the secondary ring gear 18, and the secondary ring gear 18 is connected with the rack gear 25 of the slider 20. Since they are engaged, both rotations of the rotating shaft 13 become impossible to rotate, and thus the on state of the attracting magnetic force can be maintained more stably.

As described above, the adsorption magnetism switch device of the magnetic adsorption device according to the present invention has an effect of easily controlling the on state and the off state of the adsorption magnetism while making the overall structure very simple. The on and off states of the magnetic force can be reliably made by the operator, thereby making it possible to more easily perform the magnetic suction machine.

In addition, when the magnetic adsorber is used for the first time, various foreign substances or impurities present on the magnet case adhere to the surface of the magnet case by magnetic force, and the rotating shaft rotates due to the repulsive force between the rotating magnet and the fixed magnet in the on state of the adsorbing magnetic force. By blocking the phenomenon to be in advance, there is an effect that can maintain the adsorption magnetic force of the iron plate at a constant level at all times, thereby having an effect that can greatly contribute to the smooth adsorption transfer of the iron plate and the worker's accident prevention.

Claims (2)

The rotating magnet 15 fixed to the rotating shaft 13 together with the ring gear 12 and the fixed magnets 14 and 14 'corresponding to both sides of the rotating magnet 15 are installed in the magnet case 10. In the cut hole 17 formed in the cover plate 11 of the magnet case 10, the locking portion 23 protrudes to both sides at the lower side of the slide plate 21 having the hook 22. A slider 20 having a pair of slide arms 24 extending downward is inserted and installed to be movable upward and downward, and a rack gear for rotating a ring gear 12 to one slide arm 24 of the slider 20. In which 25 is integrally installed, A secondary ring gear 18 having a diameter larger than that of the ring gear 12 and whose outer peripheral surface is meshed with the ring gear 12 and the rack gear 25, respectively, is rotatably installed at the center of the incision 17. Become, On the upper surface of the cover plate 11 of the magnet case 10, the slide plate 21 and the locking portion 23 are inserted into the slide case 30 to fix the vertical movement of the slider 20 is fixedly installed. In the slide case 30, a stopper 40 having a locking end portion 42 is hinged to both openings of the body 30a through which the slide hole 31 penetrates, and the stopper 40 and the body 30a are hinged. Between the side plates 37 of the spring 50 is installed to press the stopper 40 toward the slider 20 side, the front of the body 30a has a rotary shaft 34 having a lever 33 on both rotor cases It is installed so as to be rotated by the (36), the inside of the rotor case 36 is rotated through the tapping hole (30b) formed in the body (30a) to push the stopper 40 toward the side plate 37 side Adsorption magnetic force switch device of the magnetic adsorber, characterized in that the rotor 35 is fixed on the rotary shaft (34). The rotating shaft 34 of claim 1, wherein the slide case 30 has a lever 33 and a rotor 35 fixed between both side plates 311 of the body 30a through which the slide hole 31 passes. ) Is installed, and each rotor 35 side of the rotating shaft 34 is elastically retracted through the exit hole 312 formed in front of the body 30a to stop the vertical movement of the slider 20 (40) ) Is installed to allow free rotation with respect to the rotary shaft 34, The stopper 40 has a locking jaw 413 in which the rotor 35 of the rotating shaft 34 is caught by the rotation of the lever 33 is formed in the upper portion, and fixed to the side plate 311 at the lower end thereof. Adsorption magnetic force switch device of the magnetic adsorber, characterized in that the engaging end portion 412 is supported by the elastic member 60 to be inserted into the exit hole (312).