CN113493168A - Diversified synchronous control equipment and method for electric hoist - Google Patents
Diversified synchronous control equipment and method for electric hoist Download PDFInfo
- Publication number
- CN113493168A CN113493168A CN202110674788.4A CN202110674788A CN113493168A CN 113493168 A CN113493168 A CN 113493168A CN 202110674788 A CN202110674788 A CN 202110674788A CN 113493168 A CN113493168 A CN 113493168A
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- electric
- main motor
- electric hoist
- sensor
- frequency converter
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/48—Control devices automatic
- B66D1/485—Control devices automatic electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
- H02P5/50—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing electrical values representing the speeds
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The invention discloses diversified synchronous control equipment for electric hoists, which comprises at least two electric hoists, wherein the electric hoists are connected in parallel, one of the electric hoists is connected with a main motor, the main motor is connected with a main motor frequency converter, the main motor frequency converter is connected with a frequency sensor, the other electric hoists are connected with auxiliary motors, the auxiliary motors are provided with auxiliary motor frequency converters, the auxiliary motor frequency converters are connected with the frequency sensor, the frequency sensor is used for acquiring current on the main motor frequency converter and controlling the current on the auxiliary motor frequency converter to be consistent with the current on the main motor frequency converter, each electric hoist is provided with a control module and a sensor, and the sensors are used for measuring the number of teeth rotated by internal gears when the electric hoists move. The invention also provides a diversified synchronous control method of the electric hoist. The problems that the normal operation is influenced and potential safety hazards exist due to inconsistent operation steps of the electric hoist are solved.
Description
Technical Field
The invention relates to the technical field of electric hoists, in particular to diversified synchronous control equipment and a method for an electric hoist.
Background
The electric hoist is a special hoisting device, mainly comprises a motor, a transmission mechanism, a chain wheel and the like, is usually arranged on a crown block and a gantry crane, and has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, so the electric hoist is commonly used in places such as industrial and mining enterprises, storage docks and the like. When the electric hoist is used, the chain wheel is driven to rotate by the motor, and the chain wound on the groove of the chain wheel is controlled to be wound and unwound so as to lift or release an object hung by the chain.
Along with the rapid development of the existing electric hoist technology, the gradual multi-functional control of the electric reed-breaking, tradition, singleness has not satisfied current development demand yet, electric hoist is when using, usually all are many linkage uses, but because all parameters of different electric hoist can't be the same completely, the operation step that will lead to different electric hoist like this is inconsistent, thereby cause the deviation of promotion and decline, and the deviation can be accumulated, after certain time, just can make the lower extreme of many electric hoist have deviation by a wide margin, light then influence normal production, then become the potential safety hazard seriously.
Disclosure of Invention
The invention aims to: the diversified synchronous control equipment and the method for the electric hoists aim to solve the problems that the normal operation is affected and potential safety hazards exist due to the fact that the operation steps of a plurality of electric hoists are inconsistent.
In order to achieve the above object, on one hand, the invention adopts the following technical scheme: a diversified synchronous control device of an electric hoist comprises at least two electric hoists which are connected in parallel, one of the electric hoists is connected with a main motor, the main motor is connected with a main motor frequency converter, the main motor frequency converter is connected with a frequency sensor, the other electric hoists are connected with slave motors, slave motor frequency converters are arranged on the slave motors, the slave motor frequency converter is connected with the frequency sensor, the frequency sensor is used for acquiring the current on the master motor frequency converter, and controlling the current on the slave motor frequency converter to be consistent with the current on the master motor frequency converter, wherein each electric hoist is provided with a control module and a sensor, the sensor is used for measuring the number of teeth that internal gear rotated when electric block moved, control module is used for controlling electric block's start and stop.
As a further description of the above technical solution:
the control module comprises a control chip, a driving circuit and a communication unit, wherein the control chip and the communication unit are connected with the driving circuit, the communication unit is used for information transmission between the control modules, and the control chip is connected with the sensor.
As a further description of the above technical solution:
the communication unit adopts WiFi or Bluetooth for information transmission.
As a further description of the above technical solution:
the sensor is a Hall gear sensor.
As a further description of the above technical solution:
when the internal gear of the electric hoist rotates by one tooth, the Hall gear sensor sends a signal to the control chip, and the control chip counts the total number of the received signals.
As a further description of the above technical solution:
and the WiFi signal generator is arranged on the frequency sensor and is used for information communication with the control module.
As a further description of the above technical solution:
and the control module is in control connection with a control terminal or a mobile phone through a communication unit.
On the other hand, the invention also provides a diversified synchronous control method of the electric hoist, which comprises the following steps:
s1: at least two electric hoists are installed, wherein one electric hoist is connected with a main motor, the main motor is connected with a main motor frequency converter, the main motor frequency converter is connected with a frequency sensor, the other electric hoists are connected with auxiliary motors, the auxiliary motors are provided with auxiliary motor frequency converters, and the electric hoists are respectively provided with a control module and a sensor;
s2: the control module on the main motor receives the total number of signals of the main motor connected with the sensors of the electric hoist and compares the total number of the signals of the sensors of other electric hoists, when the signals are the same, each electric hoist moves, and when the signals are different, the control module calibrates the electric hoist to enable each signal to be the same;
s3: after step S2, the frequency sensor receives the current data of the master motor and each slave motor, compares the current of the slave motor with the current of the master motor, and sends the comparison result to the control module of the master motor connected to the electric block, and the control module controls the frequency converter of the slave motor to change the current of the slave motor, so that the current of the slave motor is consistent with the current of the master motor, thereby implementing the synchronous control of the electric block.
In conclusion, the technical scheme is adopted. The invention has the beneficial effects that: through setting up control module and sensor, can carry out the stroke calibration between the different electric block, the rethread sets up the frequency of main motor converter, changes the mains frequency of main motor, makes the mains frequency of slave motor unanimous with the mains frequency of main motor through frequency sensor and slave motor converter to can make a plurality of electric blocks realize the synchronous operation, reach the purpose that improves safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an exploded view of a diversified synchronous control device of an electric hoist.
Fig. 2 is a schematic structural diagram of a control module in the diversified synchronous control device of the electric hoist.
Illustration of the drawings:
1. an electric hoist; 2. a main motor; 3. a main motor frequency converter; 4. a frequency sensor; 5. a slave motor; 6. a slave motor frequency converter; 7. a control module; 71. a control chip; 72. a drive circuit; 73. a communication unit; 8. a sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a diversified synchronous control device of an electric hoist comprises at least two electric hoists 1, the electric hoists 1 are connected in parallel, one electric hoist 1 is connected with a main motor 2, the main motor 2 is connected with a main motor frequency converter 3, the main motor frequency converter 3 is connected with a frequency sensor 4, the other electric hoists 1 are connected with a slave motor 5, the slave motor 5 is provided with a slave motor frequency converter 6, the slave motor frequency converter 6 is connected with the frequency sensor 4, the frequency sensor 4 is used for acquiring the current on the main motor frequency converter 3 and controlling the current on the slave motor frequency converter 6 to be consistent with the current on the main motor frequency converter 3, each electric hoist 1 is provided with a control module 7 and a sensor 8, and the sensor 8 is used for measuring the number of teeth rotated by an internal gear when the electric hoist moves, the control module 7 is used for controlling the starting and stopping of the electric hoist 1.
The control module 7 comprises a control chip 71, a driving circuit 772 and a communication unit 73, the control chip 61 and the communication unit are both connected with the driving circuit 72, the communication unit 73 is used for information transmission between the control module 7, and the control chip 71 is connected with the sensor 8. By adopting wireless communication, the communication speed can be improved.
The communication unit 73 uses WiFi or bluetooth for information transfer.
The sensor 8 is a hall gear sensor.
When the internal gear of the electric hoist 1 rotates by one tooth, the hall gear sensor sends a signal to the control chip 61, and the control chip 71 counts the total number of the received signals.
And a WiFi signal generator is arranged on the frequency sensor 4 and is used for information communication with the control module 7. Can be connected with the current control, and reduces the installation of control equipment.
The control module is in control connection with a control terminal or a mobile phone through a communication unit 73. This enables remote control.
A diversified synchronous control method for an electric hoist comprises the following steps:
s1: at least two electric hoists 1 are installed, wherein one electric hoist is connected with a main motor 2, the main motor 2 is connected with a main motor frequency converter 3, the main motor frequency converter 3 is connected with a frequency sensor 4, the other electric hoists 1 are connected with auxiliary motors 5, the auxiliary motors 5 are provided with auxiliary motor frequency converters 6, and the electric hoists 1 are all provided with control modules 7 and sensors 8;
s2: the control module 7 on the main motor receives the total number of signals of the main motor connected with the sensors of the electric hoist and compares the total number of the signals received by the sensors of other electric hoists, when the signals are the same, each electric hoist moves, and when the signals are different, the control module 7 calibrates the electric hoist 1 to enable each signal to be the same;
s3: after step S2 is completed, the frequency sensor 4 receives the current data of the master motor and each slave motor, compares the current of the slave motor 5 with the current of the master motor, and sends the comparison result to the control module 7 of the master motor connected to the electric hoist 1, and the control module 7 controls the slave motor frequency converter 6 to change the current of the slave motor, so that the current of the slave motor 5 is consistent with the current of the master motor, and the synchronous control of the electric hoist 1 is realized.
The working principle is that a plurality of electric hoists 1 are installed, one of the electric hoists is connected with a main motor 2, the main motor 2 is connected with a main motor frequency converter 3, the main motor frequency converter 3 is connected with a frequency sensor 4, the other electric hoists 1 are connected with slave motors 5, the slave motors 5 are provided with slave motor frequency converters 6, the electric hoists 1 are respectively provided with a control module 7 and a sensor 8, the control module 7 on the main motor receives the total number of signals of the main motor connected with the electric hoist sensors and receives other data for comparison, when the signals are the same, each electric hoist moves, when the signals are different, the control module 7 calibrates the electric hoist 1, each signal is the same, after the step S2 is completed, the frequency sensor 4 receives the current data of the main motor and each slave motor, compares the current of the slave motor 5 with the current on the main motor, and the comparison data is sent to a control module 7 of the main motor connected with the electric hoist 1, the control module 7 controls a frequency converter 6 of the slave motor to change the current of the slave motor, so that the current of the slave motor 5 is consistent with the current of the main motor, and the synchronous control of the plurality of electric hoists 1 is realized.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The diversified synchronous control equipment of the electric hoists is characterized by comprising at least two electric hoists (1), wherein the electric hoists (1) are connected in parallel, one electric hoist (1) is connected with a main motor (2), the main motor (2) is connected with a main motor frequency converter (3), the main motor frequency converter (3) is connected with a frequency sensor (4), the other electric hoists (1) are connected with auxiliary motors (5), each auxiliary motor (5) is provided with an auxiliary motor frequency converter (6), each auxiliary motor frequency converter (6) is connected with the frequency sensor (4), each frequency sensor (4) is used for obtaining the current on the main motor frequency converter (3) and controlling the current on each auxiliary motor frequency converter (6) to be consistent with the current on the main motor frequency converter (3), every all be provided with control module (7) and sensor (8) on electric block (1), the number of teeth that internal gear rotated when sensor (8) are used for measuring the electric block motion, control module (6) are used for controlling the start-up and the stop of electric block (1).
2. The electric hoist diversified synchronous control device according to claim 1, wherein the control module (7) comprises a control chip (71), a driving circuit (72) and a communication unit (73), the control chip (71) and the communication unit are both connected with the driving circuit (72), the communication unit (73) is used for information transmission between the control modules (7), and the control chip (71) is connected with the sensor (8).
3. The electric hoist diversified synchronous control device according to claim 2, wherein the communication unit (63) adopts WiFi or Bluetooth for information transmission.
4. An electric block diversified synchronous control device according to claim 2, characterized in that said sensor (8) is a hall gear sensor.
5. A diversified synchronous control device of an electric hoist according to claim 4, characterized in that the Hall gear sensor sends a signal to the control chip (61) every time the internal gear of the electric hoist (1) rotates by one tooth, and the control chip (61) counts the total number of received signals.
6. The electric hoist diversified synchronous control device according to claim 1, wherein a WiFi signal generator is arranged on the frequency sensor (4), and the WiFi signal generator is used for information communication with the control module (7).
7. The electric hoist diversified synchronous control device according to claim 2, wherein the control module is in control connection with a control terminal or a mobile phone through a communication unit (73).
8. A diversified synchronous control method for an electric hoist is characterized by comprising the following steps:
s1: the method comprises the following steps that at least two electric hoists (1) are installed, one electric hoist is connected with a main motor (2), the main motor (2) is connected with a main motor frequency converter (3), the main motor frequency converter (3) is connected with a frequency sensor (4), the other electric hoists (1) are connected with auxiliary motors (5), the auxiliary motors (5) are provided with auxiliary motor frequency converters (6), and the electric hoists (1) are provided with control modules (7) and sensors (8);
s2: the control module (7) on the main motor receives the total number of signals of the main motor connected with the sensors of the electric hoist to be compared with the total number of signals of other sensors of the electric hoist, when the signals are the same, each electric hoist moves, and when the signals are different, the control module (7) calibrates the electric hoist (1) to enable each signal to be the same;
s3: after step S2 is completed, the frequency sensor (4) receives current data of the main motor and each slave motor, the current of the slave motor (5) is compared with the current of the main motor, the comparison result is sent to a control module (7) on the electric hoist (1) connected with the main motor, the control module (7) controls a slave motor frequency converter (6) to change the current of the slave motor, the current of the slave motor (5) is consistent with the current of the main motor, and synchronous control of the electric hoist (1) is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110674788.4A CN113493168A (en) | 2021-06-17 | 2021-06-17 | Diversified synchronous control equipment and method for electric hoist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110674788.4A CN113493168A (en) | 2021-06-17 | 2021-06-17 | Diversified synchronous control equipment and method for electric hoist |
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| CN113493168A true CN113493168A (en) | 2021-10-12 |
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| CN202110674788.4A Pending CN113493168A (en) | 2021-06-17 | 2021-06-17 | Diversified synchronous control equipment and method for electric hoist |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107826A (en) * | 2011-03-18 | 2011-06-29 | 北城致远集团有限公司 | Controllable synchronous lifting device |
| CN208087110U (en) * | 2018-03-28 | 2018-11-13 | 湖南泰尔汀起重科技有限公司 | The double electric blocks of synchronous control |
| CN110143533A (en) * | 2019-04-26 | 2019-08-20 | 南京航空航天大学 | A kind of suspension hook synchronous lifting device and method based on wireless communication and electric block |
| CN210620036U (en) * | 2019-07-31 | 2020-05-26 | 纽科伦（新乡）起重机有限公司 | System for controlling real-time synchronous operation of multiple electric hoists |
-
2021
- 2021-06-17 CN CN202110674788.4A patent/CN113493168A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102107826A (en) * | 2011-03-18 | 2011-06-29 | 北城致远集团有限公司 | Controllable synchronous lifting device |
| CN208087110U (en) * | 2018-03-28 | 2018-11-13 | 湖南泰尔汀起重科技有限公司 | The double electric blocks of synchronous control |
| CN110143533A (en) * | 2019-04-26 | 2019-08-20 | 南京航空航天大学 | A kind of suspension hook synchronous lifting device and method based on wireless communication and electric block |
| CN210620036U (en) * | 2019-07-31 | 2020-05-26 | 纽科伦（新乡）起重机有限公司 | System for controlling real-time synchronous operation of multiple electric hoists |
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Application publication date: 20211012 |