CN211811806U - Master-slave synchronous double-motor drive intelligent control long-distance belt conveyor - Google Patents
Master-slave synchronous double-motor drive intelligent control long-distance belt conveyor Download PDFInfo
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- CN211811806U CN211811806U CN202020305002.2U CN202020305002U CN211811806U CN 211811806 U CN211811806 U CN 211811806U CN 202020305002 U CN202020305002 U CN 202020305002U CN 211811806 U CN211811806 U CN 211811806U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a master-slave synchronous double-machine drive intelligent control long-distance belt conveyor, including operation route and reserve route, operation route and reserve route include main power supply, dry-type transformer case, 690V cubical switchboard, converter main cabinet, converter slave cabinet, distributed control system DCS, local operation case, encoder, frequency conversion main motor and frequency conversion slave motor, the main power supply is connected with the dry-type transformer case, the dry-type transformer case is connected two the 690V cubical switchboard, two the 690V cubical switchboard is connected respectively the converter main cabinet with the converter slave cabinet; the device optimizes double-machine driving power balance and speed synchronization, meets the requirement of field control precision, saves labor cost, is easy to popularize, has high reliability, flexibility, practicability and intellectualization for production equipment and automatic production lines, and is mainly used in the field of material conveying of power plants, wharf ports and energy chemical industry.
Description
Technical Field
The utility model relates to a synchronous duplex drive intelligent control long distance belt conveyor of principal and subordinate.
Background
The intelligent control of the existing long-distance belt conveyor mostly adopts dual-drive master-slave control, the consistency of speed synchronization and power balance is hardly considered in the debugging process, repeated adjustment and selection are needed, the impact on equipment caused by uneven load and insufficient tension of a belt conveyor is large, the conveying capacity of materials is uneven, and the balance is difficult to realize on the given torque of a master-slave machine, so that the speed synchronization and the power balance are difficult to realize.
Based on the above problems, it is desirable to provide a master-slave synchronous dual-motor driven intelligent control long-distance belt conveyor which can solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a synchronous duplex drive intelligent control long distance belt conveyor of principal and subordinate is provided.
The utility model discloses a realize through following technical scheme:
a master-slave synchronous double-motor drive intelligent control long-distance belt conveyor comprises an operation route and a standby route, wherein the operation route and the standby route comprise a main power supply, a dry-type transformer box, a 690V switch cabinet, a frequency converter main cabinet, a frequency converter slave cabinet, a Distributed Control System (DCS), an on-site operation box, an encoder, a frequency conversion main motor and a frequency conversion slave motor, the main power supply is connected with the dry-type transformer box, the dry-type transformer box is connected with the two 690V switch cabinets, the two 690V switch cabinets are respectively connected with the frequency converter main cabinet and the frequency converter slave cabinet, the frequency converter main cabinet is connected with the frequency conversion main motor, and the frequency converter slave cabinet is connected with the frequency conversion slave motor.
Preferably, the variable-frequency master motor and the variable-frequency slave motor are respectively provided with corresponding encoders.
Preferably, the in-place operation box is provided at a position between the inverter main cabinet and the inverter sub-cabinet.
Preferably, the distributed control system DCS is provided at a position between the frequency converter master cabinet and the frequency converter slave cabinet.
The utility model has the advantages that: the device optimizes double-machine driving power balance and speed synchronization, meets the requirement of field control precision, saves labor cost, is easy to popularize, has high reliability, flexibility, practicability and intellectualization for production equipment and automatic production lines, and is mainly used in the field of material conveying of power plants, wharf ports and energy chemical industry.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a diagram of a control system of the present invention;
FIG. 2 is a logic diagram of the control system of the present invention;
fig. 3 is a table for selecting the type of the control system parameter of the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
In the description of the present invention, it is to be understood that the terms "one end", "the other end", "the outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "set", "coupled", "connected", "penetrating", "plugging", and the like are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The master-slave synchronous double-motor driven intelligent control long-distance belt conveyor shown in fig. 1, fig. 2 and fig. 3 comprises an operation route and a standby route, wherein the operation route and the standby route comprise a main power supply, a dry-type transformer box, a 690V switch cabinet, a frequency converter main cabinet, a frequency converter slave cabinet, a distributed control system DCS, an on-site operation box, an encoder, a frequency conversion main motor and a frequency conversion slave motor, the main power supply is connected with the dry-type transformer box, the dry-type transformer box is connected with two 690V switch cabinets, the two 690V switch cabinets are respectively connected with the frequency converter main cabinet and the frequency converter slave cabinet, the frequency converter main cabinet is connected with the frequency conversion main motor, and the frequency converter slave cabinet is connected with the frequency conversion slave motor.
The utility model discloses in the embodiment of a preferred, the frequency conversion main motor with the frequency conversion slave motor all corresponds respectively has corresponding encoder.
The utility model discloses in the embodiment of a preferred, the operation box sets up on the spot the main cabinet of converter with the position department between the cabinet is followed to the converter.
The utility model discloses in the embodiment of a preferred, distributed control system DCS sets up the main cabinet of converter with the position department between the cabinet is followed to the converter.
The speed synchronization and power balance problem under the double-machine driving of the long-distance belt conveyor is solved; because the belt conveyor is flexibly connected with a load, the speed synchronization and the power balance between the two machine drives are relatively difficult to pursue in a variable frequency drive mode, but the requirements on the on-site control precision can be met by adopting an optimal control mode through reasonable parameter configuration, selection and correction.
The primary problem to be solved in the master-slave synchronous double-motor driven intelligent control long-distance belt conveyor is the speed synchronization and power balance problem; because the belt conveyor is flexibly connected with a load, the pursuit of speed synchronization and power balance among multi-machine drives in a variable frequency drive mode is relatively difficult, but certain effects can be achieved through the following method, and the requirement of field control precision can be met.
(1) For the dual-drive configuration, a one-driving-two mode can be performed, and a one-driving-one driving mode can also be performed: for one-driving-two control, the parameters of two motors are required to be the same, the coaxial configuration effect is good, but the effect is possibly not good for the 1:1 configuration of the front and rear driving rollers, mainly caused by the difference of the diameters of the rollers; for synchronous balance debugging in a one-to-two configuration mode, a common direct current bus mode and a master-slave control mode are adopted, and in the common direct current bus mode, because the two frequency converters can mutually digest the bus fluctuation of the other side, the bus voltage is kept consistent and the speed is the same; a master-slave synchronization mode is adopted, communication closed-loop control is adopted, a speed sensor-free speed closed loop is adopted by a host, a torque (power) closed loop is adopted by a slave, and the communication receives output torque (power) from the host, so that double-machine power balance control is realized.
(2) Power imbalance analysis and countermeasures: one situation is caused by insufficient tension force of the belt conveyor, and because the belt conveyor is in belt transmission flexible load, unbalanced in conveying amount and sometimes in impact load, when the tension force is insufficient, the slave machine is small in friction force and small in resistance moment generated by a roller, and cannot realize closed-loop moment balanced with given moment of a main machine, so that proper tension is required to be performed, and load balance can be realized, and an automatic tension device is suggested; the second condition is caused by the inconsistent diameters of the rollers, and the rubber coating layer is arranged on the rollers to increase the friction force; the speed balance refers to linear speed, and the control is to set angular speed, the linear speed V = radius r ×. angular speed w, so the rotating speeds of the motors are consistent under the condition that the output frequencies of the frequency converters are the same, and the operating linear speeds of the belt conveyor are inconsistent due to different radiuses r (diameters) of the rollers, so that the rollers can slip, over-current occurs to one frequency converter, over-voltage occurs to the other frequency converter, and the like; the solution is to correct the maximum output frequency (rotation speed), which requires simple calculation or small-amplitude trial adjustment until a satisfactory effect is achieved; and secondly, the roller is replaced, so that the diameters of the rollers of the multiple machines are consistent, and a better driving effect is kept.
(3) Analyzing the current instability phenomenon of the frequency converter: because the belt conveyor is not uniformly loaded, sometimes larger coal blocks enter the rubber belt, impact load is caused on the belt conveyor, and current fluctuation is caused; in addition, under the condition of poor conditions of the adhesive tape, if the edge is locally torn, the adhesive tape may collide with a deviation sensor, a belt frame and the like during operation, and impulsive current fluctuation may also be generated; the unreasonable setting of the technological parameters of the frequency converter, such as PID parameters, can also cause the problems of unstable driving current, output oscillation and the like.
The long-distance belt conveyor is required to be intelligent: the modern society requires that the manufacturing industry makes a quick response to market demands, the control system of production equipment and an automatic production line must have extremely high reliability and flexibility, and a Programmable Logic Controller (PLC) and a Distributed Control System (DCS) are in compliance with the requirement; for the interlocking requirements among all devices of a complete system, the development of centralized control of a belt conveyor conveying line is emphasized because the interlocking in a program is more convenient than the interlocking of hardware; the subsequent trend requires project design to use an electronic computer control system, PLC control is selected and matched, and the interlocking among the devices is satisfied in the program, so that the operation of each device can be remotely and automatically controlled in a control room, the whole transportation system is completely automated, and the operation condition of the devices can be remotely monitored; and the conversion of photoelectric signals is realized by utilizing a communication module, and the optical cable is adopted to transmit signals in a long distance to perform DCS centralized control.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a synchronous duplex drive intelligent control long distance belt conveyor of master-slave which characterized in that: the intelligent control system comprises an operation route and a standby route, wherein the operation route and the standby route comprise a main power supply, a dry-type transformer box, a 690V switch cabinet, a frequency converter main cabinet, a frequency converter slave cabinet, a distributed control system DCS, a local operation box, an encoder, a frequency conversion main motor and a frequency conversion slave motor, the main power supply is connected with the dry-type transformer box, the dry-type transformer box is connected with the 690V switch cabinet, the two 690V switch cabinets are respectively connected with the frequency converter main cabinet and the frequency converter slave cabinet, the frequency converter main cabinet is connected with the frequency conversion main motor, and the frequency converter slave cabinet is connected with the frequency conversion slave motor.
2. The master-slave synchronous double-motor drive intelligent control long-distance belt conveyor according to claim 1, characterized in that: and the variable-frequency main motor and the variable-frequency slave motor are respectively provided with corresponding encoders.
3. The master-slave synchronous double-motor drive intelligent control long-distance belt conveyor according to claim 1, characterized in that: the in-situ box is disposed at a location between the frequency converter master cabinet and the frequency converter slave cabinet.
4. The master-slave synchronous double-motor drive intelligent control long-distance belt conveyor according to claim 1, characterized in that: the distributed control system DCS is disposed at a position between the frequency converter main cabinet and the frequency converter sub cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020305002.2U CN211811806U (en) | 2020-03-12 | 2020-03-12 | Master-slave synchronous double-motor drive intelligent control long-distance belt conveyor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020305002.2U CN211811806U (en) | 2020-03-12 | 2020-03-12 | Master-slave synchronous double-motor drive intelligent control long-distance belt conveyor |
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| CN211811806U true CN211811806U (en) | 2020-10-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988022A (en) * | 2022-05-20 | 2022-09-02 | 国家能源集团煤焦化有限责任公司 | Dual-drive scraper conveyor |
| CN115947063A (en) * | 2023-02-06 | 2023-04-11 | 承德古德卡威尔自动化科技有限公司 | Synchronous control system for stay cord codes of tensioning part of dual-drive conveyor |
-
2020
- 2020-03-12 CN CN202020305002.2U patent/CN211811806U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114988022A (en) * | 2022-05-20 | 2022-09-02 | 国家能源集团煤焦化有限责任公司 | Dual-drive scraper conveyor |
| CN114988022B (en) * | 2022-05-20 | 2023-10-03 | 国家能源集团煤焦化有限责任公司 | Dual-drive scraper conveyor |
| CN115947063A (en) * | 2023-02-06 | 2023-04-11 | 承德古德卡威尔自动化科技有限公司 | Synchronous control system for stay cord codes of tensioning part of dual-drive conveyor |
| CN115947063B (en) * | 2023-02-06 | 2023-10-03 | 承德古德卡威尔自动化科技有限公司 | Synchronous control system for stay cord coding of tensioning part of double-drive conveyor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Master slave synchronous double machine drive intelligent control long distance belt conveyor Effective date of registration: 20220519 Granted publication date: 20201030 Pledgee: Jining Branch of Rizhao Bank Co.,Ltd. Pledgor: SHANDONG SHANKUANG MACHINERY Co.,Ltd. Registration number: Y2022980005828 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230516 Granted publication date: 20201030 Pledgee: Jining Branch of Rizhao Bank Co.,Ltd. Pledgor: SHANDONG SHANKUANG MACHINERY Co.,Ltd. Registration number: Y2022980005828 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Master slave synchronous dual machine drive intelligent control of long-distance belt conveyor Effective date of registration: 20230620 Granted publication date: 20201030 Pledgee: Jining Branch of Rizhao Bank Co.,Ltd. Pledgor: SHANDONG SHANKUANG MACHINERY Co.,Ltd. Registration number: Y2023980044463 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231221 Granted publication date: 20201030 Pledgee: Jining Branch of Rizhao Bank Co.,Ltd. Pledgor: SHANDONG SHANKUANG MACHINERY Co.,Ltd. Registration number: Y2023980044463 |