CN2821631Y - Intelligent control system for tunneller cutting - Google Patents
Intelligent control system for tunneller cutting Download PDFInfo
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- CN2821631Y CN2821631Y CN 200520090353 CN200520090353U CN2821631Y CN 2821631 Y CN2821631 Y CN 2821631Y CN 200520090353 CN200520090353 CN 200520090353 CN 200520090353 U CN200520090353 U CN 200520090353U CN 2821631 Y CN2821631 Y CN 2821631Y
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- cutting
- cut
- plc programmable
- solenoid valve
- current transformer
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Abstract
The utility model relates to a technique for controlling the cutting speed of an entry-driving machine, particularly a system for controlling the cutting speed according to the size of the cutting current of a cutting head when the entry-driving machine is carried out with cutting operation. The utility model comprises a hydraulic part and a control part, wherein the hydraulic part is an open type system formed by the connection of a quantitative pump and a multiple-way valve, and electromagnetic valves are respectively added in a cutting and rotating oil cylinder and a cutting and lifting oil cylinder to form a speed regulating circuit; the control part comprises a transducer, a current transformer and a PLC programmable controller, wherein the current transformer is used for detecting the current of a cutting motor, analog signals pass through the transducer to be converted to digital signals, and then the digital signals are inputted to the PLC programmable controller which controls the on-off of the electromagnetic valves through a relay. The utility model realizes automatic control for the cutting speed in the entry-driving process of the entry-driving machine according to objects to be cut and loading conditions.
Description
Technical field
The utility model relates to the airborne control technology of cutting speed of driving, is specially on the development machine when carrying out the cut operation, and according to the size of cutting head cut electric current, the system that cutting speed is controlled.
Background technology
At present, in the headwork process,, realize on the development machine the coal petrography cut along with the rotation of cutting head.Because the difference of geologic condition,, need to improve cutting speed (cut speed of gyration and cut oscilaltion speed), thereby enhance productivity when running into coal seam or load hour.When running into half coal petrography or coal petrography or load when big, need to reduce cutting speed (cut speed of gyration and cut oscilaltion speed), thus protection cutting motor and pick.And development machine in the market can't be accomplished automatic control to this point, and blindly cut easily takes place, and damages motor and pick.
The utility model content
The purpose of this utility model provides a kind of tunneling machine cutting intelligence control system, in order to solve development machine in tunneling process, according to cut object and loading condition, cutting speed is realized control automatically.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of tunneling machine cutting intelligence control system comprises hydraulic part and control section, and hydraulic part is the open system that fixed displacement pump and banked direction control valves are formed by connecting, and respectively adds a solenoid valve in cut angling cylinder and cut hoist cylinder loop, constitutes speed control loop; Control section comprises transmitter, current transformer, PLC programmable controller, current transformer detects the cutting motor electric current, simulating signal is passed through expansion module, is analog signal conversion digital signal, input to the PLC Programmable Logic Controller then, the PLC Programmable Logic Controller is by the break-make of relay control electromagnetic valve.
Described solenoid valve is the thread cartridge solenoid valve, on two integrated valve pieces of thread cartridge solenoid valve, constitutes speed regulating control valve piece.
Described fixed displacement pump is a gear-type pump.
The banked direction control valves of described control cut angling cylinder and cut hoist cylinder is selected manual manipulation mode.
Described transformer, current transformer, PLC programmable controller, auxiliary reclay are placed in the electric Flameproof box.
The beneficial effects of the utility model are:
Adopt the utility model development machine when carrying out the cut operation, can cutting speed be controlled according to the size of cutting head cut electric current.Hydraulic part of the present utility model is the open system that fixed displacement pump and banked direction control valves are formed by connecting, and respectively adds a solenoid valve in cut angling cylinder and cut hoist cylinder loop, constitutes speed control loop; Control section of the present utility model is for comprising transformer, current transformer, PLC programmable controller, auxiliary reclay etc., current transformer detects the cutting motor electric current, simulating signal is passed through the analog quantity expansion module, is analog signal conversion digital signal, inputs to the PLC Programmable Logic Controller then; Thereby, make solenoid valve detect the cutting motor electric current by current transformer, accept the instruction that the PLC Programmable Logic Controller sends, revolution of control cut and cut rising or falling speed.
Description of drawings
Fig. 1 is the utility model hydraulic system principle figure.
Fig. 2 is the utility model circuit theory diagrams.
Among the figure 1, oil pump; 2, banked direction control valves; 3, thread cartridge solenoid valve; 4, cut angling cylinder; 5, cut hoist cylinder; 6, two equalizing valves; 7, fuel tank; 8, transformer; 9, current transformer; 10, PLC programmable controller; 11, auxiliary reclay.
Embodiment
As shown in Figure 1, the utility model hydraulic system is the responsive ratio banked direction control valves of fixed displacement pump 1 loading 2 open system schemes.Fixed displacement pump is a gear-type pump, the banked direction control valves of control cut angling cylinder 4 and cut hoist cylinder 5 is selected manual manipulation mode, respectively add a solenoid valve 3 in angling cylinder and cut hoist cylinder loop, constitute speed control loop, this solenoid valve can be realized two kinds of speed-regulating functions.Solenoid valve is at Chang Kaiwei, and the spool standard-sized sheet is big flow; Solenoid valve gets electric, and limited flow is low discharge.Being integrated on the oil cylinder of two equalizing valves 6 in cut lifting loop, two equalizing valves 6 of cut rotary loop are installed on the development machine body.Two equalizing valve 6 effects: the locking load remains on a certain position; Prevent the oil cylinder stalled glide.
As shown in Figure 2, the utility model Automatic Control Theory is as follows: Current Transformer 9 detects the cutting motor electric current, simulating signal is passed through expansion module, is analog signal conversion digital signal, input to PLC Programmable Logic Controller 10 then, compare with setting value in the PLC Programmable Logic Controller 10, if greater than this setting value, then drive auxiliary reclay 11, electromagnet is got, the solenoid valve commutation, the fluid flow of supplying with oil cylinder reduces, and reduces oil cylinder movement velocity (cut speed of gyration and cut oscilaltion speed).If less than this setting value, then auxiliary reclay 11 is failure to actuate, and electromagnet must not be electric, and solenoid valve remains on often leaves the position, with big traffic driven oil cylinder, makes oil cylinder keep high movement velocity (cut speed of gyration and cut oscilaltion speed).
Like this, in the development machine tunneling process, usually the banked direction control valves handle wrench is operated to dominant bit (spool full open).Cut revolution and cut lifting are two kinds of main actions of development machine driving, and at this moment, solenoid valve can detect the cutting motor electric current by mutual inductor, accepts the instruction that PLC sends, revolution of control cut and cut rising or falling speed.
The utility model adopts two thread cartridge solenoid valves 3 to form speed regulating control valve piece, and other electric controling elements can be placed in the electric Flameproof box as transformer 8, current transformer 9, PLC programmable controller 10, auxiliary reclay 11 etc.
Because the colliery product is integrated in two solenoid valves on the valve piece the requirement of explosion proof of electrical equipment, hydraulic fluid port protects top two solenoid valves get up separately with a flame proof lid in the side, constitutes a Flameproof box, and this case is done explosion-proof experiment.
Claims (4)
1, a kind of tunneling machine cutting intelligence control system, it is characterized in that: comprise hydraulic part and control section, hydraulic part is the open system that fixed displacement pump and banked direction control valves are formed by connecting, and respectively adds a solenoid valve in cut angling cylinder and cut hoist cylinder loop, constitutes speed control loop; Control section comprises transmitter, current transformer, PLC programmable controller, current transformer detects the cutting motor electric current, simulating signal is passed through expansion module, is analog signal conversion digital signal, input to the PLC Programmable Logic Controller then, the PLC Programmable Logic Controller is by the break-make of relay control electromagnetic valve.
2, according to the described tunneling machine cutting intelligence control system of claim 1, it is characterized in that: described solenoid valve is the thread cartridge solenoid valve, on two integrated valve pieces of thread cartridge solenoid valve, constitutes speed regulating control valve piece.
3, according to the described tunneling machine cutting intelligence control system of claim 1, it is characterized in that: described fixed displacement pump is a gear-type pump.
4, according to the described tunneling machine cutting intelligence control system of claim 1, it is characterized in that: described transformer, current transformer, PLC programmable controller, auxiliary reclay are placed in the electric Flameproof box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090353 CN2821631Y (en) | 2005-04-18 | 2005-04-18 | Intelligent control system for tunneller cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090353 CN2821631Y (en) | 2005-04-18 | 2005-04-18 | Intelligent control system for tunneller cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821631Y true CN2821631Y (en) | 2006-09-27 |
Family
ID=37018185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090353 Expired - Fee Related CN2821631Y (en) | 2005-04-18 | 2005-04-18 | Intelligent control system for tunneller cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821631Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215966B (en) * | 2007-01-05 | 2010-05-19 | 三一重型装备有限公司 | Tunneling machine cutting feed volume automatic control method |
| CN101839133A (en) * | 2010-04-26 | 2010-09-22 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Development machine coal rock identification automatic cutting control method and system |
| CN101713975B (en) * | 2008-10-08 | 2011-10-05 | 石家庄煤矿机械有限责任公司 | Intelligent control system for automatic cutting formation of tunneling |
| CN107269275A (en) * | 2017-06-15 | 2017-10-20 | 中国矿业大学(北京) | A kind of boom-type roadheader cutting arm slew rate adaptive control system and method |
| CN115163597A (en) * | 2022-07-07 | 2022-10-11 | 中铁工程装备集团有限公司 | Stable hydraulic system for cutting part of cantilever heading machine and control method |
-
2005
- 2005-04-18 CN CN 200520090353 patent/CN2821631Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215966B (en) * | 2007-01-05 | 2010-05-19 | 三一重型装备有限公司 | Tunneling machine cutting feed volume automatic control method |
| CN101713975B (en) * | 2008-10-08 | 2011-10-05 | 石家庄煤矿机械有限责任公司 | Intelligent control system for automatic cutting formation of tunneling |
| CN101839133A (en) * | 2010-04-26 | 2010-09-22 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Development machine coal rock identification automatic cutting control method and system |
| CN101839133B (en) * | 2010-04-26 | 2012-07-04 | 山西潞安环保能源开发股份有限公司王庄煤矿 | Development machine coal rock identification automatic cutting control method and system |
| CN107269275A (en) * | 2017-06-15 | 2017-10-20 | 中国矿业大学(北京) | A kind of boom-type roadheader cutting arm slew rate adaptive control system and method |
| CN107269275B (en) * | 2017-06-15 | 2019-02-12 | 中国矿业大学(北京) | A kind of boom-type roadheader cutting arm slew rate adaptive control system and method |
| CN115163597A (en) * | 2022-07-07 | 2022-10-11 | 中铁工程装备集团有限公司 | Stable hydraulic system for cutting part of cantilever heading machine and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20140418 |