CN112068417A - Special frequency converter control system for rope sawing machine - Google Patents
Special frequency converter control system for rope sawing machine Download PDFInfo
- Publication number
- CN112068417A CN112068417A CN202010693060.1A CN202010693060A CN112068417A CN 112068417 A CN112068417 A CN 112068417A CN 202010693060 A CN202010693060 A CN 202010693060A CN 112068417 A CN112068417 A CN 112068417A
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- main shaft
- rope
- frequency converter
- sawing
- motor
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- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004579 marble Substances 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Sawing (AREA)
Abstract
The invention relates to the technical field of mine rope sawing equipment, in particular to a special frequency converter control system for a rope sawing machine, which can realize automatic adjustment of tightness of a sawing rope, improve efficiency and ensure safe cutting, and comprises a trolley, wherein a movable motor for driving the trolley to work is arranged on the trolley, and a rope winding wheel is also arranged on the trolley, and the special frequency converter control system is characterized in that the rope winding wheel is electrically controlled and connected with a main shaft motor, the main shaft motor is electrically controlled and connected with a main shaft frequency converter, the movable motor is electrically controlled and connected with a movable frequency converter, a PID controller is arranged in the main shaft frequency converter, the PID controller receives a current value of the main shaft motor, when the current value output by the PID controller exceeds an upper limit value or is lower than a lower limit value, a forward rotation or reverse rotation signal is output to the movable frequency converter to enable the movable motor to rotate forward or reverse to control the moving distance and, thereby driving the sawing rope to be loosened or tightened, and controlling the sawing rope to finish the cutting operation by the main shaft motor.
Description
Technical Field
The invention relates to the technical field of mine rope sawing equipment, in particular to a special frequency converter control system for a rope sawing machine.
Background
A mine rope sawing machine adopts the working principle that a motor drives a diamond rope saw to serve as a cutting tool, and the cutting object is marble. The motor is placed on a movable trolley, and a worker checks the movable trolley through work as the marble is cut, so that the tension of the diamond saw rope is maintained.
If the sawing cord is too loose, the marble cannot be cut, and in addition, the danger of sudden breakage and throwing away of the sawing cord may occur. If the sawing rope is too tight, the current of the motor is too large to cause hair scald, and the sawing rope is rubbed and overheated to break and get rid of flying danger. The adjustment of the looseness and tightness of the sawing rope is realized by completely relying on field experienced workers to observe the condition that marble is cut, moving a trolley carrying a motor, and observing that if the sawing rope is loosened, the trolley moves backwards, the sawing rope is tight, and the trolley moves forwards, as shown in figure 1. Due to the working condition of manual operation, the staff danger and safety index is high besides low reliable control and low working efficiency.
Disclosure of Invention
In order to solve the problems of difficult control, low efficiency and large potential safety hazard of the conventional sawing rope, the invention provides a special frequency converter control system for a sawing rope machine, which can realize automatic adjustment of the tightness of the sawing rope, improve the efficiency and ensure safe cutting.
The technical scheme is as follows: the utility model provides a special converter control system of sawing machine, its includes the platform truck, install the drive on the platform truck the mobile motor of platform truck work, still install the sawing rope wind-up wheel on the platform truck, its characterized in that, the automatically controlled main shaft motor that connects of sawing rope wind-up wheel, the automatically controlled main shaft converter that connects of main shaft motor, the automatically controlled removal converter that connects of mobile motor, be provided with the PID controller in the main shaft converter, the PID controller receives main shaft motor's current value, when the current value that PID output exceeds the upper limit value or is less than the lower limit value, for removing the converter output corotation or reversal signal let the mobile motor carries out corotation or upset control platform truck displacement distance and direction to it relaxs or tightens up to drive the sawing rope, and main shaft motor control sawing rope accomplishes the cutting operation.
The mobile frequency converter is further characterized in that the mobile frequency converter is electrically connected with a touch screen console.
After the invention is adopted, the main shaft frequency converter receives the current value of the main shaft motor, and the control signals for the main shaft frequency converter and the movable frequency converter are obtained through PID calculation, so that the main shaft motor and the movable motor are controlled to work, the automatic adjustment of the tightness of the sawing rope is realized, the efficiency is improved, and the safe cutting is ensured.
Drawings
FIG. 1 is a prior art schematic;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a schematic diagram of the connection of the frequency converter;
FIG. 4 is a flow chart of spindle motor control;
FIG. 5 is a flow diagram of the moving motor control;
FIG. 6 is a timing control logic diagram.
Detailed Description
Referring to fig. 2 to 6, a frequency converter control system special for a rope sawing machine comprises a trolley 1, a movable motor 2 for driving the trolley 1 to work is mounted on the trolley 1, a rope winding wheel 3 is further mounted on the trolley 1, the rope winding wheel 3 is electrically connected with a spindle motor 4, the spindle motor 4 is electrically connected with a spindle frequency converter 5, the movable motor 2 is electrically connected with a movable frequency converter 6, a PID controller is arranged in the spindle frequency converter 5, the PID controller receives a current value of the spindle motor 4, the received current value is subjected to PID operation, when the current value output by PID exceeds an upper limit value, the tension of a rope 8 is indicated to be too tight, a forward rotation signal is output to the movable frequency converter 6, when the forward rotation signal, namely an instruction that the trolley moves forwards, the movable frequency converter 6 drives the movable motor 2 to move the trolley 1 forwards, the rope is loosened, and when the current value output by PID exceeds a lower limit value, the tension of the saw rope 8 is too loose, a reverse signal is output to the movable frequency converter 6, after the reverse signal is received, namely the trolley 1 moves backwards, the movable frequency converter 6 drives the movable motor 2 to overturn so that the trolley 1 moves backwards, the saw rope is tightened up, when the current value output by the PID does not exceed the upper limit value or is not lower than the lower limit value, the signal of the movable frequency converter 6 does not need to be informed, the trolley does not move, and the main shaft motor 4 controls the saw rope 8 to complete the cutting operation. When receiving the emergency stop notification, the main shaft frequency converter 5 outputs a stop signal,
in the invention, the tightness degree of the sawing rope is controlled by the movement of the trolley 1, and the main shaft motor 4 only controls the movement of the sawing rope to complete the cutting operation.
The mobile frequency converter 6 is electrically controlled and connected with a touch screen console 7. The touch screen console 7 is connected with the mobile special frequency converter through a communication RS 485. Besides monitoring the sawing rope state, trolley position and other data, the touch screen control system can be mainly used for controlling whether the system is operated automatically or manually. In addition, safety measures such as an emergency stop switch and the like can be used for issuing the highest instruction at the console.
Due to the adoption of the technical scheme, compared with the prior art, the design of the invention is more convenient
For safety and higher reliability, better efficiency of implementation is achieved. Can avoid judgment caused by manual operation
Worker safety at the site of performing the cut with wrong, too many workers, and the absence of manually moving the trolley alone
Stability problems.
PID control is carried out by a special frequency converter, tension judgment during sawing rope cutting is solved, and trolley movement is solved
The system has the advantages of proper distance and correct direction, low-efficiency operation without any need of people to stare at any time when the equipment is cut, and safety measures for remotely operating the emergency stop switch in an emergency state.
Claims (2)
1. The utility model provides a special converter control system of sawing machine, its includes the platform truck, install the drive on the platform truck the mobile motor of platform truck work, still install the sawing rope wind-up wheel on the platform truck, its characterized in that, the automatically controlled main shaft motor that connects of sawing rope wind-up wheel, the automatically controlled main shaft converter that connects of main shaft motor, the automatically controlled removal converter that connects of mobile motor, be provided with the PID controller in the main shaft converter, the PID controller receives main shaft motor's current value, when the current value that PID output exceeds the upper limit value or is less than the lower limit value, for removing the converter output corotation or reversal signal let the mobile motor carries out corotation or upset control platform truck displacement distance and direction to it relaxs or tightens up to drive the sawing rope, and main shaft motor control sawing rope accomplishes the cutting operation.
2. The frequency converter control system special for the rope sawing machine as claimed in claim 1, wherein the mobile frequency converter is electrically controlled to be connected with a touch screen console.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693060.1A CN112068417A (en) | 2020-07-17 | 2020-07-17 | Special frequency converter control system for rope sawing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010693060.1A CN112068417A (en) | 2020-07-17 | 2020-07-17 | Special frequency converter control system for rope sawing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112068417A true CN112068417A (en) | 2020-12-11 |
Family
ID=73656661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010693060.1A Pending CN112068417A (en) | 2020-07-17 | 2020-07-17 | Special frequency converter control system for rope sawing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112068417A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008295143A (en) * | 2007-05-23 | 2008-12-04 | Hitachi Industrial Equipment Systems Co Ltd | System for determining failure of regenerative resistor |
| CN101859122A (en) * | 2010-06-12 | 2010-10-13 | 泉州华大超硬工具科技有限公司 | Automatic electrical control system for wire saw machine |
| CN203151412U (en) * | 2013-02-05 | 2013-08-21 | 卓宝松 | Rope saw walking load automatic control system |
| CN204515381U (en) * | 2015-02-13 | 2015-07-29 | 长沙通石达机械制造有限公司 | For the automatic control system of abnormal shape rope saw |
| CN104850054A (en) * | 2015-05-21 | 2015-08-19 | 泉州华大超硬工具科技有限公司 | Wire saw remote monitoring control system |
| CN108089543A (en) * | 2018-02-08 | 2018-05-29 | 连云港天明装备有限公司 | A kind of automatic towing cable electrical control gear of coalcutter and its control method |
-
2020
- 2020-07-17 CN CN202010693060.1A patent/CN112068417A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008295143A (en) * | 2007-05-23 | 2008-12-04 | Hitachi Industrial Equipment Systems Co Ltd | System for determining failure of regenerative resistor |
| CN101859122A (en) * | 2010-06-12 | 2010-10-13 | 泉州华大超硬工具科技有限公司 | Automatic electrical control system for wire saw machine |
| CN203151412U (en) * | 2013-02-05 | 2013-08-21 | 卓宝松 | Rope saw walking load automatic control system |
| CN204515381U (en) * | 2015-02-13 | 2015-07-29 | 长沙通石达机械制造有限公司 | For the automatic control system of abnormal shape rope saw |
| CN104850054A (en) * | 2015-05-21 | 2015-08-19 | 泉州华大超硬工具科技有限公司 | Wire saw remote monitoring control system |
| CN108089543A (en) * | 2018-02-08 | 2018-05-29 | 连云港天明装备有限公司 | A kind of automatic towing cable electrical control gear of coalcutter and its control method |
Non-Patent Citations (3)
| Title |
|---|
| 张秀磊 等: "电子电气技术实践基础教程", 北京航空航天大学出版社, pages: 90 * |
| 田清;: "变频器在运河煤矿副井提升***主电机冷却风机中的应用", 中国煤炭工业, no. 09 * |
| 高中彭;孙维连;杨钰瑛;李新领;王会强;: "大型金相试样切割机控制***设计", 微计算机信息, no. 34 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201211 |