CN108466933B - Lifting device control system utilizing electromagnetic chuck, control method and application - Google Patents
Lifting device control system utilizing electromagnetic chuck, control method and application Download PDFInfo
- Publication number
- CN108466933B CN108466933B CN201810524088.5A CN201810524088A CN108466933B CN 108466933 B CN108466933 B CN 108466933B CN 201810524088 A CN201810524088 A CN 201810524088A CN 108466933 B CN108466933 B CN 108466933B
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- electromagnetic chuck
- grab bucket
- control system
- module
- controlled
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 36
- 238000012216 screening Methods 0.000 claims description 19
- 239000003302 ferromagnetic material Substances 0.000 claims description 17
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 9
- 238000013019 agitation Methods 0.000 claims description 5
- 230000005294 ferromagnetic effect Effects 0.000 claims description 5
- 230000000737 periodic effect Effects 0.000 claims description 3
- 238000013517 stratification Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 abstract description 3
- 210000000078 claw Anatomy 0.000 description 11
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 230000005291 magnetic effect Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000000246 remedial effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/22—Control systems or devices for electric drives
-
- 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
- B66C1/06—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 electromagnetic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
A hoisting device control system using electromagnetic chuck, control method and application, including: a power supply, a transformer, and an electrical control section; the electrical control part comprises an electromagnetic chuck control circuit module and a safe lifting control circuit module; when the grab bucket control module is electrified, the action of the grab bucket is controlled by the crane, namely, a crane driver can control the grab bucket to be opened or closed; in the control system, when the electromagnetic chuck magnetizes the trouble or the electric wire netting voltage is unstable, the grab bucket no longer receives the control of hoist, improves factor of safety, prevents that electromagnetic chuck from adsorbing the material under the loss of magnetism state, transferring the material, prevents the incident. When the electromagnetic chuck is in magnetizing fault or the voltage of the power grid is unstable, the grab bucket is controlled by the grab bucket forced closing control module, so that forced closing is realized, and the material is prevented from falling.
Description
Technical Field
The invention relates to a lifting device control system utilizing an electromagnetic chuck, a control method and application thereof, and belongs to the technical field of intelligent industry.
Background
Along with the development of waste metal screening, more and more industries need to continuously recycle ferromagnetic materials, and the existing screening technology also gradually starts to develop to the direction of mechanization and automation. The existing screening core technology adopts an electromagnetic chuck to screen and transfer ferromagnetic materials, however, in actual engineering operation, the working efficiency of the electromagnetic chuck is often closely related to the suction force of the electromagnetic chuck in unit area and the area of the electromagnetic chuck, and although the technology is improved in the industry, the screening and transferring efficiency of the ferromagnetic materials is still limited by the two restriction factors.
Technical matters of the invention
Aiming at the technical defects, the invention provides a lifting device control system and a lifting device control method by utilizing an electromagnetic chuck;
the invention also provides application of the hoisting control system.
The technical scheme of the invention is as follows:
the hoisting control system comprises: a power supply, a transformer, and an electrical control section; the electrical control part comprises an electromagnetic chuck control circuit module and a safe lifting control circuit module; the method is characterized in that:
the electromagnetic chuck control circuit module includes: the bridge rectifier circuit, the undervoltage relay, the electromagnetic chuck magnetizing contactor normally open auxiliary switch, the electromagnetic chuck demagnetizing contactor normally open auxiliary switch and the RC protection circuit; the under-voltage relay, the electromagnetic chuck magnetizing contactor and the electromagnetic chuck demagnetizing contactor are connected in parallel respectively;
the safety hoisting control circuit module comprises a main control circuit and a grab forced closing control circuit;
the main control circuit includes: the crane motor thermal relay normally-closed switch, the grab bucket controlled module relay and the electromagnetic chuck magnetic charging contactor normally-open auxiliary switch are connected in series;
the lifting device utilizing the electromagnetic chuck comprises the lifting arm and the electromagnetic chuck, wherein the grab bucket is arranged at the front end of the lifting arm, the accommodating cavity for accommodating the electromagnetic chuck is arranged in the center of the grab bucket, the electromagnetic chuck is arranged at the top of the accommodating cavity, and the through hole for allowing an electric circuit of the electromagnetic chuck to pass through is formed in the top of the accommodating cavity. The grab bucket is a shell type grab bucket or a multi-piece grab bucket. When the screened object is a material with smaller volume, a shellfish grab bucket can be selected. The multi-clack grab bucket is selected, so that bucket teeth can be replaced, and high-hardness wear-resistant steel is adopted, so that the service life is long; the valve shell can be selected according to different working environments; full-closed valve shells, semi-closed valve shells, wide-side valve shells and narrow-side valve shells. The multi-clack grab comprises a plurality of claw arms, and the claw arms are driven by a motor or a hydraulic cylinder. The front ends of the claw arms are provided with convex teeth for stirring. The front end of the claw arm is provided with the convex teeth, which has the effects that: under actual field working conditions, if the electromagnetic chuck is directly used for adsorbing the material pile to be screened, the adsorption effect is limited to effectively adsorbing the ferromagnetic material on the surface of the material, but the adsorption effect on the deeply buried ferromagnetic material is still poor, and especially for the material pile with low ferromagnetic material content. Therefore, the convex tooth structure is designed, so that the target material can be effectively stirred or turned, and the screening precision and efficiency are improved. The convex teeth are axially perpendicular to the surface of the electromagnetic chuck when the grab bucket is closed. The advantage of this design is that when deep turning of the material is required, the grab is only closed so that the teeth are inserted vertically into the stack. Moreover, the electromagnetic chuck can be started at the moment, the effect of preliminarily adsorbing ferromagnetic materials to the surface of the material pile is realized when the materials are turned over, and preparation is made for subsequent screening, grabbing and transferring. And a reinforcing rib is arranged on the outer side of the claw arm. The reinforcing ribs can increase the working strength of the whole system.
When the grab bucket control module is electrified, the action of the grab bucket is controlled by the crane, namely, a crane driver can control the grab bucket to be opened or closed; in the control system, when the electromagnetic chuck magnetizes the trouble or the electric wire netting voltage is unstable, the grab bucket no longer receives the control of hoist, improves factor of safety, prevents that electromagnetic chuck from adsorbing the material under the loss of magnetism state, transferring the material, prevents the incident.
The grab forced closing control circuit comprises a grab controlled module relay normally closed auxiliary switch and a grab forced closing control module which are connected in series. The function of this design lies in, when electromagnetic chuck magnetizing trouble or electric wire netting voltage are unstable, the grab bucket is by the control of grab bucket forced closure control module, realizes forcing closure, avoids the material to drop.
The invention further discloses a control system which further comprises a weak current control part, wherein the weak current control part comprises a normally-open auxiliary switch of an electromagnetic chuck magnetizing contactor and a normally-open auxiliary switch of an undervoltage relay which are connected in parallel, and finally the signal transmitting module is connected in series; the control system also comprises a remote network monitoring platform; the signal is transmitted the module is used for: when the electromagnetic chuck is magnetized and fails or when the voltage of the power grid is unstable, the system transmits a fault signal to the remote network monitoring platform through a signal transmitting module. The remote network monitoring platform monitors the working states of the crane and the electromagnetic chuck in real time, and once abnormality occurs, remote monitoring or maintenance assignment work is realized.
The invention further discloses that the weak current control part further comprises an alarm module connected with the signal transmitting module in series. The alarm module can be installed in an area which can be identified by site constructors or safety monitoring staff to prompt the site personnel to pay attention to safety control or take further safety remedial measures.
The control method of the hoisting control system comprises the following steps:
electrifying the electromagnetic chuck, wherein when the voltage is stable and the electromagnetic chuck works normally, the grab bucket is controlled by a grab bucket controller normally;
and electrifying the electromagnetic chuck, wherein when the voltage is unstable or the electromagnetic chuck cannot be magnetized normally, the grab bucket is not controlled by the grab bucket controller, the grab bucket is directly controlled to be closed and folded, and the lifting device sends out an alarm prompt.
The application of the lifting control system comprises the steps of applying the lifting device to stirring layering before screening ferromagnetic materials:
when the grab bucket is provided with convex teeth for stirring, the grab bucket is controlled to be closed and furled, the electromagnetic chuck is magnetized, the grab bucket is controlled to extend to a material pile to be screened through the control lifting arm, the horizontal height range is determined, and the grab bucket is controlled to perform periodic reciprocating horizontal movement in the material pile to be screened.
The invention further discloses that the application of the hoisting control system further comprises primary screening:
this preliminary screening is a subsequent procedure to the agitation delamination described above: after stirring and layering ferromagnetic materials, controlling the ferromagnetic sucker to demagnetize, further controlling the grab bucket to open, and then clamping and transferring the upper-layer materials of the layered ferromagnetic materials through controlling the grab bucket. At this time, the screening is to further screen the materials, and the large material pile is used for preliminary purification, so that basic preparation is made for subsequent selection.
And (3) the application of the hoisting control system carries out carefully selection on the layered materials and the materials subjected to primary screening:
the ferromagnetic materials are adsorbed by controlling the magnetizing of the electromagnetic chuck, and then transported to the target position by controlling the crane arm.
The invention further discloses a method for controlling the grab bucket to be closed in the transferring process, so that the adsorbed materials are effectively clamped and coated and transferred.
The technology of the invention the advantages are that:
when the grab bucket control module is electrified, the action of the grab bucket is controlled by the crane, namely, a crane driver can control the grab bucket to be opened or closed; in the control system, when the electromagnetic chuck magnetizes the trouble or the electric wire netting voltage is unstable, the grab bucket no longer receives the control of hoist, improves factor of safety, prevents that electromagnetic chuck from adsorbing the material under the loss of magnetism state, transferring the material, prevents the incident. When the electromagnetic chuck is in magnetizing fault or the voltage of the power grid is unstable, the grab bucket is controlled by the grab bucket forced closing control module, so that forced closing is realized, and the material is prevented from falling.
The invention also introduces a remote network monitoring platform to realize real-time monitoring of the working states of the crane and the electromagnetic chuck, and once abnormality occurs, remote monitoring or assignment maintenance work is realized.
The alarm module can be installed in an area which can be identified by site constructors or safety monitoring staff to prompt the site constructors to pay attention to safety control or take further safety remedial measures.
The invention also discloses a plurality of application screening modes so as to adapt to a plurality of screening occasions.
Drawings
FIG. 1 is a schematic view of the overall structure of the assembly of the grab bucket and the electromagnetic chuck in the lifting device of the electromagnetic chuck according to the invention;
FIG. 2 is a schematic view of a partial construction of a claw arm according to the present invention;
FIG. 3 is a bottom view of the entirety of the grab bucket and electromagnetic chuck assembly described in example 3;
FIG. 4 is a front view of the entirety of the grab bucket and electromagnetic chuck assembly described in example 3;
FIG. 5 is a schematic circuit diagram of a control system according to embodiment 4 of the present invention;
FIG. 6 is a schematic circuit diagram of a control system according to embodiment 5 of the present invention;
FIG. 7 is a flowchart of a control method according to embodiment 6 of the present invention;
in the figures 1-4 of the drawings,
2. an electromagnetic chuck; 3. a grab bucket; 4. a receiving chamber; 5. an electromagnetic chuck electrical circuit; 6. a through hole; 7. a claw arm; 8. convex teeth; 9. reinforcing ribs.
In figures 5, 6 and 7 of the drawings,
1. a remote network monitoring platform; 10. a power supply; 11. a transformer; 12. an electromagnetic chuck control circuit module; 13. a safety hoist control circuit module;
12-1, a bridge rectifier circuit; 12-2, an undervoltage relay; 12-3, an electromagnetic chuck magnetic charging contactor normally open auxiliary switch; 12-4, an electromagnetic chuck demagnetizing contactor normally open auxiliary switch; 12-5, RC protection circuit;
13-1, a main control circuit; 13-2, forcibly closing a control circuit by the grab bucket; 13-3, an under-voltage relay normally-open auxiliary switch; 13-4, stopping the normally closed switch of the crane; 13-5, starting a normally open switch of the crane; 13-6 a crane start-stop relay; 13-7, a normally closed switch of a thermal relay of a crane motor; 13-8, a grab bucket control module; 13-9, a grab bucket controlled module relay; 13-10, a grab bucket controlled module relay normally closed auxiliary switch; 13-11, a grab forced closing control module.
14. A weak current control unit; 14-1, a signal transmitting module; 14-2, an alarm module.
Detailed Description
The present invention will be described in detail with reference to examples and drawings, but is not limited thereto.
Example 1,
As shown in fig. 1.
The utility model provides an utilize electromagnet's hoisting apparatus, includes cargo boom 1 and electromagnet 2 the front end of cargo boom 1 is provided with grab bucket 3, is provided with at the inside center of grab bucket 3 and holds electromagnet's holding chamber 4, electromagnet 2 hold the top in chamber 4 is provided with the through-hole 6 that power supply electromagnet electric wire 5 passed.
The grab bucket 3 is a shell type grab bucket or a multi-piece grab bucket. In this embodiment, a multi-lobed grab is preferred, which comprises a plurality of claw arms 7, which claw arms 7 are driven by a motor or a hydraulic cylinder.
EXAMPLE 2,
As shown in fig. 2.
A lifting device using an electromagnetic chuck according to embodiment 1 is different in that a stirring tooth 8 is provided at the tip of the claw arm 7.
The convex teeth 8 are perpendicular to the surface of the electromagnetic chuck 2 in the axial direction when the grab bucket is closed.
EXAMPLE 3,
As shown in fig. 3 and 4.
A lifting device using an electromagnetic chuck according to embodiments 1 and 2 is different in that a reinforcing rib 9 is provided on the outer side of the claw arm 7.
EXAMPLE 4,
As shown in fig. 5.
A hoist control system using an electromagnetic chuck as in embodiments 1-3, comprising: a power supply 10, a transformer 11, and an electrical control section; the electric control part comprises an electromagnetic chuck control circuit module 12 and a safe hoisting control circuit module 13; the difference is that:
the electromagnetic chuck control circuit module 12 includes: the bridge rectifier circuit 12-1, the undervoltage relay 12-2, the electromagnetic chuck magnetizing contactor normally open auxiliary switch 12-3, the electromagnetic chuck demagnetizing contactor normally open auxiliary switch 12-4 and the RC protection circuit 12-5; the undervoltage relay 12-2, the electromagnetic chuck magnetizing contactor normally-open auxiliary switch 12-3, the electromagnetic chuck demagnetizing contactor normally-open auxiliary switch 12-4 and the RC protection circuit 12-5 are respectively connected with the bridge rectifier circuit 12-1 in parallel;
the safety hoisting control circuit module 13 comprises a main control circuit 13-1 and a grab forced closing control circuit 13-2;
the main control circuit includes: the under-voltage relay normally open auxiliary switch 13-3, the crane stop normally closed switch 13-4, the crane start normally open switch 13-5, the crane start and stop relay 13-6, the crane motor thermal relay normally closed switch 13-7, the grab bucket controlled module 13-8, the grab bucket controlled module relay 13-9 and the electromagnetic chuck magnetizing contactor normally open auxiliary switch 12-3 are connected in series;
the grab forced closing control circuit comprises a grab controlled module relay normally closed auxiliary switch 13-10 and a grab forced closing control module 13-11 which are connected in series.
EXAMPLE 5,
As shown in fig. 6.
The lifting control system using electromagnetic chuck according to embodiment 4 is characterized in that the control system further comprises a weak current control part 14, the weak current control part 14 comprises an electromagnetic chuck magnetic contactor normally open auxiliary switch 12-3 and an under voltage relay normally open auxiliary switch 13-3 connected in parallel, and finally the signal transmitting module 14-1 is connected in series; the control system also comprises a remote network monitoring platform 1; the signal transmitting module 14-1 is configured to: when the electromagnetic chuck is magnetized to fail or the voltage of the power grid is unstable, the system transmits a failure signal to the remote network monitoring platform through the signal transmitting module.
EXAMPLE 6,
As shown in fig. 7.
A lifting control system using an electromagnetic chuck according to embodiment 5 is different in that the weak current control part further includes an alarm module 14-2 connected in series with the signal transmitting module.
EXAMPLE 7,
The control method of the lifting device according to embodiments 4-6, comprising:
electrifying the electromagnetic chuck, wherein when the voltage is stable and the electromagnetic chuck works normally, the grab bucket is controlled by a grab bucket controller normally;
electrifying the electromagnetic chuck, wherein when the voltage is unstable or the electromagnetic chuck cannot be magnetized normally, the grab bucket is not controlled by the grab bucket controller, and the grab bucket is directly controlled to be closed and folded; the lifting device sends out an alarm prompt.
EXAMPLE 8,
Use of the lifting control system of embodiments 1-3, comprising applying the lifting device to agitation stratification before screening of ferromagnetic parts:
when the grab bucket is provided with convex teeth for stirring, the grab bucket is controlled to be closed and furled, the electromagnetic chuck is magnetized, the grab bucket is controlled to extend to a material pile to be screened through the control lifting arm, the horizontal height range is determined, and the grab bucket is controlled to perform periodic reciprocating horizontal movement in the material pile to be screened.
EXAMPLE 9,
The use of the hoist control system of embodiment 8, the application of the hoisting control system further comprises primary screening:
this preliminary screening is a subsequent procedure to the agitation delamination described above: after stirring and layering ferromagnetic materials, controlling the ferromagnetic sucker to demagnetize, further controlling the grab bucket to open, and then clamping and transferring the upper-layer materials of the layered ferromagnetic materials through controlling the grab bucket.
EXAMPLE 10,
The use of the hoist control system of example 9, the stratified material and the primary screened material were refined:
the ferromagnetic materials are adsorbed by controlling the magnetizing of the electromagnetic chuck, and then transported to the target position by controlling the crane arm.
EXAMPLE 11,
The use of the hoist control system of embodiment 10, wherein the grab is controlled to close during the transferring process to achieve effective gripping and coating of the material to be adsorbed and then transferring.
Claims (6)
1. A hoist control system utilizing an electromagnetic chuck, comprising: a power supply, a transformer, and an electrical control section; the electrical control part comprises an electromagnetic chuck control circuit module and a safe lifting control circuit module;
the lifting control system is used for controlling a lifting device utilizing the electromagnetic chuck and comprises a lifting arm and the electromagnetic chuck, wherein a grab bucket is arranged at the front end of the lifting arm, a containing cavity for containing the electromagnetic chuck is arranged in the center of the interior of the grab bucket, the electromagnetic chuck, and a through hole for allowing an electric circuit of the electromagnetic chuck to pass through is formed in the top of the containing cavity;
the method is characterized in that:
the electromagnetic chuck control circuit module includes: the bridge rectifier circuit, the undervoltage relay, the electromagnetic chuck magnetizing contactor normally open auxiliary switch A, the electromagnetic chuck demagnetizing contactor normally open auxiliary switch and the RC protection circuit; the under-voltage relay, the electromagnetic chuck magnetizing contactor normally-open auxiliary switch A, the electromagnetic chuck demagnetizing contactor normally-open auxiliary switch and the RC protection circuit are respectively connected with the bridge rectifier circuit in parallel;
the safety hoisting control circuit module comprises a main control circuit and a grab forced closing control circuit;
the main control circuit includes: the crane motor thermal relay normally-closed switch, the grab bucket controlled module relay and the electromagnetic chuck magnetizing contactor normally-open auxiliary switch C are connected in series;
the grab bucket forced closing control circuit comprises a grab bucket controlled module relay normally closed auxiliary switch and a grab bucket forced closing control module which are connected in series;
the control system also comprises a weak current control part, wherein the weak current control part comprises a normally open auxiliary switch B of an electromagnetic chuck magnetizing contactor and a normally open auxiliary switch B of an undervoltage relay which are connected in parallel, and finally, the weak current control part is connected with a signal transmitting module in series; the control system also comprises a remote network monitoring platform; the signal transmitting module is used for: when the electromagnetic chuck is magnetized to have faults or the voltage of the power grid is unstable, the system transmits fault signals to the remote network monitoring platform through the signal transmitting module;
the weak current control part also comprises an alarm module connected in series with the signal transmitting module.
2. A method of controlling a lifting device by a lifting control system according to claim 1, wherein the method comprises:
electrifying the electromagnetic chuck, wherein when the voltage is stable and the electromagnetic chuck works normally, the grab bucket is controlled by a grab bucket controller normally;
and electrifying the electromagnetic chuck, wherein when the voltage is unstable or the electromagnetic chuck cannot be magnetized normally, the grab bucket is not controlled by the grab bucket controller, the grab bucket is directly controlled to be closed and folded, and the lifting device sends out an alarm prompt.
3. Use of a lifting control system using electromagnetic chucks according to claim 1, characterized in that it comprises the application of said lifting means to the agitation stratification of ferromagnetic pieces before screening:
when the grab bucket is provided with convex teeth for stirring, the grab bucket is controlled to be closed and furled, the electromagnetic chuck is magnetized, the grab bucket is controlled to extend to a material pile to be screened through the control lifting arm, the horizontal height range is determined, and the grab bucket is controlled to perform periodic reciprocating horizontal movement in the material pile to be screened.
4. Use of a lifting control system using electromagnetic chucks according to claim 3, characterized in that the use of the lifting control system further comprises a primary screening:
the primary screening is a subsequent procedure to the agitation stratification described above: after stirring and layering ferromagnetic materials, controlling the ferromagnetic sucker to demagnetize, further controlling the grab bucket to open, and then clamping and transferring the upper-layer materials of the layered ferromagnetic materials through controlling the grab bucket.
5. The use of an electromagnetic chuck for use in a lifting control system according to claim 4 wherein said stratified material and primary screened material are selected from the group consisting of:
the ferromagnetic materials are adsorbed by controlling the magnetizing of the electromagnetic chuck, and then transported to the target position by controlling the crane arm.
6. The use of an electromagnetic chuck lifting control system according to claim 5, wherein during said transferring, the grab bucket is controlled to close, thereby effecting an effective gripping and coating of the material to be adsorbed and then transferring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524088.5A CN108466933B (en) | 2018-05-28 | 2018-05-28 | Lifting device control system utilizing electromagnetic chuck, control method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524088.5A CN108466933B (en) | 2018-05-28 | 2018-05-28 | Lifting device control system utilizing electromagnetic chuck, control method and application |
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| Publication Number | Publication Date |
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| CN108466933A CN108466933A (en) | 2018-08-31 |
| CN108466933B true CN108466933B (en) | 2024-04-16 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111908332B (en) * | 2019-05-09 | 2023-04-18 | 华东交通大学 | Recognition method for crane grab module change propagation path |
| CN112209213A (en) * | 2019-07-12 | 2021-01-12 | 上海申龙客车有限公司 | Novel passenger car body stretch-draw covering hoisting device |
| CN113565055B (en) * | 2021-07-23 | 2023-04-28 | 徐州徐工挖掘机械有限公司 | Electromagnetic chuck control system and excavator |
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| CN102114904A (en) * | 2011-01-30 | 2011-07-06 | 武汉理工大学 | Deepwater electromagnetic chuck container spreader |
| CN102259793A (en) * | 2011-05-16 | 2011-11-30 | 杭州电子科技大学 | Electric six-blade hydraulic grab bucket |
| CN102897643A (en) * | 2011-07-26 | 2013-01-30 | 宝山钢铁股份有限公司 | Electromagnet coil tap type magnetizing and demagnetizing lifting electromagnet |
| CN102424328A (en) * | 2011-09-17 | 2012-04-25 | 河南卫华重型机械股份有限公司 | Grab crane and control circuit thereof |
| CN103145033A (en) * | 2013-03-18 | 2013-06-12 | 上海贯博起重设备有限公司 | Hydraulic grab driven by diesel through wireless remote control |
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| CN204549835U (en) * | 2015-04-16 | 2015-08-12 | 泉州派德机械有限公司 | The special grab bucket of vinasse |
| KR101577762B1 (en) * | 2015-05-08 | 2015-12-15 | (주)진우산업기계 | Grapple crane for power controllable permanent magnetic chuck |
| CN104944290A (en) * | 2015-07-01 | 2015-09-30 | 绿色动力环保集团股份有限公司 | Wireless-control garbage crane and wireless control method thereof |
| CN106065638A (en) * | 2016-01-25 | 2016-11-02 | 徐工集团工程机械股份有限公司 | Hydraulic grab and construction of diaphragm wall equipment |
| CN105800443A (en) * | 2016-05-16 | 2016-07-27 | 无锡石油化工起重机有限公司 | Bridge grabbing crane with electromagnetic chuck |
| CN208327169U (en) * | 2018-05-28 | 2019-01-04 | 山东鲁磁工业科技有限公司 | A kind of hoisting control system using magnechuck |
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