CN203889552U - Comprehensive protection control system for belt conveyor - Google Patents
Comprehensive protection control system for belt conveyor Download PDFInfo
- Publication number
- CN203889552U CN203889552U CN201320849872.6U CN201320849872U CN203889552U CN 203889552 U CN203889552 U CN 203889552U CN 201320849872 U CN201320849872 U CN 201320849872U CN 203889552 U CN203889552 U CN 203889552U
- Authority
- CN
- China
- Prior art keywords
- pin
- module
- signal
- liquid crystal
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 32
- 239000003245 coal Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 101100168115 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) con-6 gene Proteins 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
Landscapes
- Control Of Conveyors (AREA)
Abstract
The utility model discloses a comprehensive protection control system for a belt conveyor. The comprehensive protection control system comprises a single chip computer control module, a signal acquisition early warning module, a liquid crystal screen display module, a fault judgment module, a parameter setting module and an execution control module, wherein the signal acquisition early warning module comprises a signal acquisition unit and a voice early warning module; a fault type, a fault parameter value and time of a fault are visually displayed and fault judgment parameters are convenient to set and modify.
Description
Technical field
The utility model relates to a kind of control system, particularly relates to a kind of belt conveyer integrated protection control system.
Background technology
In prior art, mandate publication number is CN202897451U, authorizing open day is China's utility model patent protector for belt conveyer of 2013.04.24, a kind of protector for belt conveyer is disclosed, mainly comprise temperature, speed, sideslip, suddenly stop, smog, coal position, the large protection system of tensioning and tearing tape etc. eight, control system principle is: pass through temperature sensor, speed sensor, Smoke Sensor, coal site sensor, misalignment sensor, tear sensor, utilize micro controller system to gather all kinds of parameters in belt conveyer operational process, and contrast with predefined critical value, take the mode control indicator lamp of detector switch amount signal, judge thus whether corresponding operational factor transfinites, can realize the overall judgement to belt conveyer operating troubles by this.But the breakdown signal indicating mode in current control setup adopts charactron more; and in conjunction with indicator lamp identification fault type; thereby only can whether there is fault qualitative analysis to belt conveyer; and cannot accurately show in real time fault parameter type or concrete numerical value; due to relatively independent between each protection system, system parameter setting more complicated, operates comparatively inconvenience simultaneously; have a strong impact on the work efficiency of belt feeder, can not finely meet the modern requirement in colliery.
Utility model content
The purpose of this utility model is to provide a kind of belt conveyer integrated protection control system for solving the problems of the technologies described above.
A kind of belt conveyer integrated protection control system, it comprises single chip control module, characterized by further comprising acquisition of signal warning module, liquid crystal display display module, fault judge module, parameter and module is set, carries out control module, described acquisition of signal warning module comprises signal gathering unit and phonetic warning module;
The data-out port of described signal gathering unit connects the corresponding data input port of single chip control module, the signal input port of described phonetic warning module connects the signal output port of single chip control module, the data input pin of described liquid crystal display display module is connected with the corresponding data output pin of single chip control module respectively with control pin, the data-in port of fault judge module connects the corresponding data mouth of single chip control module, parameter arranges the input port of the data-out port connection fault judge module of module, the signal output port of fault judge module connects the signal input port of carrying out control module.
Described signal gathering unit is used for gathering coal piling signal, smoke signal, tearing tape signal, offset signals, emergent stop signal, weighing-up wave, temperature signal, speed signal; Described phonetic warning module is sent phonetic warning for the alarm command of sending according to micro controller system; Described liquid crystal display display module shows the parameter value of fault type, fault and the time that fault occurs while being used for real-time display system operational factor and et out of order; Described parameter arranges setting and the amendment of module for completion system parameter; Described fault judge module is for judging that whether system is working properly, and the corresponding control module of carrying out of control.
The utility model adopts the running state of liquid crystal display display system, the each operational factor of judgement system that can be simple and clear and that system et out of order time can directly show fault type and time of failure by read-out, make to determine fast the source of trouble, parameter of the present utility model arranges module and has realized especially system and respectively judge the operation readiness of setting and the amendment of reference parameter in addition.
Below in conjunction with accompanying drawing, belt conveyer integrated protection control system of the present utility model is described further.
Brief description of the drawings
Fig. 1 is the utility model belt conveyer integrated protection control system block diagram;
Fig. 2 is the acquisition of signal warning module schematic circuit diagram of the utility model belt conveyer integrated protection control system;
Fig. 3 is the liquid crystal display display module schematic circuit diagram of the utility model belt conveyer integrated protection control system;
Fig. 4 is that the parameter of the utility model belt conveyer integrated protection control system arranges modular circuit schematic diagram;
Fig. 5 is the execution control module schematic circuit diagram of the utility model belt conveyer integrated protection control system;
Detailed description of the invention
As shown in Figure 1, the utility model belt conveyer integrated protection control system comprises that single chip control module, acquisition of signal warning module, liquid crystal display module, fault judge module, parameter arrange module, carry out control module, and described acquisition of signal warning module comprises again signal gathering unit and phonetic warning module;
The data-out port of described signal gathering unit connects the corresponding data input port of single chip control module, the signal input port of described phonetic warning module connects the signal output port of single chip control module, the data input pin of described liquid crystal display display module is connected with the corresponding data output pin of single chip control module respectively with control pin, the data-in port of fault judge module connects the corresponding data mouth of single chip control module, parameter arranges the input port of the data-out port connection fault judge module of module, the signal output port of fault judge module connects the signal input port of carrying out control module,
Described signal gathering unit is used for gathering coal piling signal, smoke signal, tearing tape signal, offset signals, emergent stop signal, weighing-up wave, temperature signal, speed signal, described phonetic warning module is used for sending early warning voice, described liquid crystal display display module shows the parameter value of fault type and fault for real-time display system operational factor and et out of order, described parameter arranges setting and the amendment of module for completion system parameter, described fault judge module is for judging whether operation irregularity of system, and controls the corresponding control circuit of carrying out.
As shown in Figure 2, the acquisition of signal warning module of the utility model belt conveyer integrated protection control system comprises micro controller system W78E52, watchdog chip X5045, speech chip ISD1700, signal amplifier LM386N3, the first crystal oscillator CY1, capacitor C 1～C9, resistance R 1～R13, eight photoelectrical couplers 01～08, coal piling sensor, Smoke Sensor, tearing tape sensor, misalignment sensor, anxious stop sensor, LOAD CELLS, temperature sensor, speed sensor.
Pin X1, the X2 of described micro controller system is connected to the first crystal oscillator CY1 two ends, and the two ends of the first crystal oscillator CY1 are respectively through capacitor C 1, C2 ground connection; The 1st pin of watchdog chip X5045, the 2nd pin, the 4th pin, the 6th pin meet respectively pin P26, pin P25, pin P23, the pin P24 of micro controller system W78E52, the 3rd pin of watchdog chip X5045 meets the pin REST of micro controller system, the 3rd pin of watchdog chip X5045 is through resistance R 1 ground connection, the 5th pin ground connection of watchdog chip X5045; The 1st pin of eight photoelectrical couplers 01～08 meets respectively pin P10～P17 of micro controller system W78E52, the 2nd pin of eight photoelectrical couplers 01～08 ground connection respectively, the 4th pin of eight photoelectrical couplers 01～08 connects 24V power supply through resistance R 2～R9 respectively, and the 3rd pin of eight photoelectrical couplers 01～08 connects respectively coal piling sensor, Smoke Sensor, tearing tape sensor, misalignment sensor, anxious stop sensor, LOAD CELLS, temperature sensor, speed sensor.The 5th of speech chip ISD1700, the 6th, the 7th pin meets respectively the pin P22 of micro controller system W78E52, P21, P20, the 3rd pin of speech chip ISD1700 is through capacitor C 4 ground connection, the 1st pin of speech chip ISD1700, the 21st pin, the 14th pin connects 5V power supply, the 12nd pin of speech chip ISD1700, the 16th pin, the 8th pin, the 28th pin ground connection, the 20th pin of speech chip ISD1700 is through resistance R 12 ground connection, the 18th pin of speech chip ISD1700 is through capacitor C 3 ground connection, between the 13rd pin of speech chip ISD1700 and the 2nd pin of signal amplifier LM386N3, be serially connected with resistance R 11 and capacitor C 9, between the 15th pin of speech chip ISD1700 and the 3rd pin of signal amplifier LM386N3, be serially connected with resistance R 10 and capacitor C 5, the 4th pin of signal amplifier LM386N3, the 6th pin ground connection, the 7th pin of signal amplifier LM386N3 is through capacitor C 6 ground connection, the 5th pin series connection capacitor C 7 and resistance R 13 ground connection again of signal amplifier LM386N3, the 5th pin of signal amplifier LM386N3 meets loud speaker SPK through capacitor C 8.
Coal piling sensor, Smoke Sensor, tearing tape sensor, misalignment sensor, anxious stop sensor, LOAD CELLS, temperature sensor, speed sensor are sent into micro controller system W78E52 by the signal of collection through corresponding light electric coupler, in the time that judging that conveyer work has fault, send micro controller system early warning signal to speech chip ISD1700, after speech chip is processed, signal is sent and started loud speaker SPK through signal amplifier LM386N3, the model of described photoelectrical coupler is TLP521-1.
As shown in Figure 3, the liquid crystal display display module of the utility model belt conveyer integrated protection control system comprises clock chip DS1302, liquid crystal display OCMJ4X8C, 485 communication chips, line bank CON6, the first pull-up resistor RP1, five photoelectrical couplers 09～13, power socket CON6_N, five button KY1～KY5, resistance R 14～R22, light-emitting diode LD1～LD4.
The 5th pin of clock chip DS1302, the 6th pin, the 7th pin meet respectively pin P21, pin P23, the pin P25 of micro controller system W78E52, between the 2nd, 3 pins of clock chip DS1302, meet the second crystal oscillator CY2, the 8th pin of clock chip DS1302 meets power supply VCC, clock chip DS1302 the 4th pin ground connection, the 1st pin of clock chip DS1302 is through power supply LI1 ground connection;
Pin DB0～BD7 of liquid crystal display OCMJ4X8C meets respectively pin P10～P17 of micro controller system W78E52, the 4th pin of liquid crystal display OCMJ4X8C, the 5th pin, the 6th pin, the 15th pin, the 17th pin connect respectively the 12nd pin, the 13rd pin, the 14th pin, the 16th pin, the 17th pin of micro controller system W78E52, the 1st pin of liquid crystal display OCMJ4X8C and the 20th pin ground connection, the 2nd pin and the 19th pin of liquid crystal display OCMJ4X8C meet power supply VCC;
The 1st pin of 485 communication chips and the 4th pin connect respectively the 10th, the 11st pin of micro controller system W78E52, the 2nd pin of 485 communication chips and the 3rd pin connect the 28th pin of micro controller system W78E52, the the 5th, the 6th pin of 485 communication chips connects respectively the 4th, the 5th pin of line bank CON6, line bank CON6 the 1st pin, the 2nd pin meet respectively power supply 24V and power supply 0V, the 6th pin ground connection of line bank CON6;
The 2nd pin of five photoelectrical couplers 09～13 ground connection respectively, the 4th pin of five photoelectrical couplers 09～13 meets power supply 24V through resistance R 18～R22 respectively, the 1st pin of five photoelectrical couplers 09～13 meets respectively pin P03～P07 of micro controller system W78E52, the 3rd pin of five photoelectrical couplers 09～13 meets button KY1～KY5 through power socket CON6_N, the other end ground connection of button KY1～KY5, light-emitting diode LD1～LD3 is connected with pin P00～P02 of micro controller system W78E52 through resistance R 14～R16 respectively, light-emitting diode LD4 connects the pin P20 of micro controller system W78E52 through resistance R 17, external the first pull-up resistor RP1 of pin P00～P07 of micro controller system W78E52,
Clock chip DS1302 is used for the synchronous recording of realizing data and occurring the time of data, liquid crystal display OCMJ4X8C is for various parameters and the system running state of real-time display system operation, 485 communication chips are for realizing communicating by letter between liquid crystal display circuit and single chip control module, and button KY1～KY5 is for arranging and change the parameter of liquid crystal display;
The time that liquid crystal display OCMJ4X8C accepts to realize data and receive data under the effect of clock chip DS1302 from the data-signal of micro controller system is simultaneously displayed on screen, is checked and revised the parameter of liquid crystal display by button KY1～KY5.
As shown in Figure 4,5, the parameter of the utility model belt conveyer integrated protection control system arranges module and comprises 16 photoelectrical couplers 14～29, resistance R 23～R38, button K1～K16, the second pull-up resistor RP2, the 3rd pull-up resistor RP3, logic control chip XC9536; The execution control module of the utility model belt conveyer integrated protection control system comprises the 4th pull-up resistor RP4, photoelectrical coupler 30～37, resistance R 39～R46, aerotron L1～L8, relay J K1～JK8;
The 1st pin of described photoelectrical coupler 14～29 connects respectively 34th～39 pins of logic control chip XC9536, the 40th pin, 42nd～44 pins, 1st～6 pins, the 2nd pin of photoelectrical coupler 14～29 ground connection respectively, the 3rd pin of photoelectrical coupler 14～29 is respectively through button K1～K16 ground connection, the 4th pin of photoelectrical coupler 14～29 meets power supply 12V through resistance R 23～R38 respectively, between the 1st pin of photoelectrical coupler 14～29 and logic control chip XC9536, is connected to the second pull-up resistor RP2, the 3rd pull-up resistor RP3, the 21st of logic control chip XC9536, 32, 41 pins meet power supply VCC, the 10th of logic control chip XC9536, 23, 31 pin ground connection, logic control chip XC9536 7th～9 pins, 11st～14 pins, the 19th pin meets respectively pin P00～P07 of micro controller system W78E52, and the 18th pin of logic control chip XC9536 connects the pin REST of micro controller system W78E52, the 33rd of logic control chip XC9536, 29, 28, 27, 26, 25, 24, 22 pins are connected with the 2nd pin of photoelectrical coupler 30～37 respectively, the 1st pin of photoelectrical coupler 30～37 meets the 4th pull-up resistor RP4, the 3rd pin ground connection of photoelectrical coupler 30～37, the 4th pin of photoelectrical coupler 30～37 is connected with the base stage of aerotron L1～L8 through resistance R 39～R46 respectively, the emitter of aerotron L1～L8 meets power supply 12V, and the collecting electrode of aerotron L1～L8 is succeeded respectively electrical equipment JK1～JK8,
Described button K1～K16 completes coal piling to logic control chip XC9536, smog, tearing tape, sideslip, suddenly stops, weighs, setting and the amendment of temperature, speed parameter value, described logic control chip XC9536 judges whether et out of order judged result is fed back to single chip control module of belt conveyer according to preset parameter value, control simultaneously and carry out control module, carry out control module and control corresponding execution unit action by the power on/off of control relay, realize the safety control of belt conveyer.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. a belt conveyer integrated protection control system, it comprises single chip control module, characterized by further comprising acquisition of signal warning module, liquid crystal display display module, fault judge module, parameter and module is set, carries out control module, described acquisition of signal warning module comprises signal gathering unit and phonetic warning module;
The data-out port of described signal gathering unit connects the corresponding data input port of single chip control module, the signal input port of described phonetic warning module connects the signal output port of single chip control module, the data input pin of described liquid crystal display display module is connected with the corresponding data output pin of single chip control module respectively with control pin, the data-in port of fault judge module connects the corresponding data mouth of single chip control module, parameter arranges the input port of the data-out port connection fault judge module of module, the signal output port of fault judge module connects the signal input port of carrying out control module,
Described signal gathering unit is used for gathering coal piling signal, smoke signal, tearing tape signal, offset signals, emergent stop signal, weighing-up wave, temperature signal, speed signal; Described phonetic warning module is sent phonetic warning for the alarm command of sending according to micro controller system; Described liquid crystal display display module shows the parameter value of fault type, fault and the time that fault occurs while being used for real-time display system operational factor and et out of order; Described parameter arranges setting and the amendment of module for completion system parameter; Described fault judge module is for judging that whether system is working properly, and the corresponding control module of carrying out of control.
2. belt conveyer integrated protection control system according to claim 1, is characterized in that described liquid crystal display display module comprises clock chip (DS1302), liquid crystal display (OCMJ4X8C), 485 communication chips, line bank (CON6), the first pull-up resistor (RP1), photoelectrical coupler 09～13, power socket (CON6_N), button KY1～KY5, resistance R 14～R22, light-emitting diode LD1～LD4;
The 5th pin of clock chip (DS1302), the 6th pin, the 7th pin meet respectively pin P21, pin P23, the pin P25 of micro controller system (W78E52), between the 2nd, 3 pins of clock chip (DS1302), connect the second crystal oscillator (CY2), the 8th pin of clock chip (DS1302) meets VCC, clock chip (DS1302) the 4th pin ground connection, the 1st pin of clock chip (DS1302) is through power supply LI1 ground connection;
Pin DB0～the BD7 of liquid crystal display (OCMJ4X8C) meets respectively the pin P10～P17 of micro controller system (W78E52), the 4th pin of liquid crystal display (OCMJ4X8C), the 5th pin, the 6th pin, the 15th pin, the 17th pin connect respectively the 12nd pin, the 13rd pin, the 14th pin, the 16th pin, the 17th pin of micro controller system (W78E52), the 1st pin of liquid crystal display (OCMJ4X8C) and the 20th pin ground connection, the 2nd pin and the 19th pin of liquid crystal display (OCMJ4X8C) meet power supply VCC;
The 1st pin of 485 communication chips and the 4th pin connect respectively the 10th, the 11st pin of micro controller system (W78E52), the 2nd pin of 485 communication chips and the 3rd pin connect the 28th pin of micro controller system (W78E52), the the 5th, the 6th pin of 485 communication chips connects respectively the 4th, the 5th pin of line bank (CON6), line bank (CON6) the 1st pin, the 2nd pin meet respectively power supply 24V and power supply 0V, the 6th pin ground connection of line bank (CON6);
The 2nd pin of photoelectrical coupler 09～13 ground connection respectively, the 4th pin of photoelectrical coupler 09～13 meets power supply 24V through resistance R 18～R22 respectively, the 1st pin of photoelectrical coupler 09～13 meets respectively the pin P03～P07 of micro controller system (W78E52), the 3rd pin of photoelectrical coupler 09～13 meets button KY1～KY5 through power socket (CON6_N), the other end ground connection of button KY1～KY5, light-emitting diode LD1～LD3 is connected with the pin P00～P02 of micro controller system (W78E52) through resistance R 14～R16 respectively, light-emitting diode LD4 connects the pin P20 of micro controller system (W78E52) through resistance R 17, external first pull-up resistor of pin P00～P07 (RP1) of micro controller system (W78E52),
Clock chip (DS1302) is for realizing data and the synchronous recording of time that occurs data, liquid crystal display (OCMJ4X8C) is for various parameters and the system running state of real-time display system operation, 485 communication chips are for realizing communicating by letter between liquid crystal display circuit and single chip control module, and button KY1～KY5 is for arranging and change the parameter of liquid crystal display.
3. belt conveyer integrated protection control system according to claim 2, it is characterized in that described parameter arranges module and comprises photoelectrical coupler 14～29, resistance R 23～R38, button K1～K16, the second pull-up resistor (RP2), the 3rd pull-up resistor (RP3), logic control chip (XC9536); The execution control module circuit of the utility model belt conveyer integrated protection control system comprises the 4th pull-up resistor (RP4), photoelectrical coupler 30～37, resistance R 39～R46, aerotron L1～L8, relay J K1～JK8;
The 1st pin of described photoelectrical coupler 14～29 connects respectively 34th～39 pins of logic control chip (XC9536), the 40th pin, 42nd～44 pins, 1st～6 pins, the 2nd pin of photoelectrical coupler 14～29 ground connection respectively, the 3rd pin of photoelectrical coupler 14～29 is respectively through button K1～K16 ground connection, the 4th pin of photoelectrical coupler 14～29 meets power supply 12V through resistance R 23～R38 respectively, between the 1st pin of photoelectrical coupler 14～29 and logic control chip (XC9536), be connected to the second pull-up resistor (RP2), the 3rd pull-up resistor (RP3), the 21st of logic control chip (XC9536), 32, 41 pins meet power supply VCC, the 10th of logic control chip (XC9536), 23, 31 pin ground connection, logic control chip (XC9536) 7th～9 pins, 11st～14 pins, the 19th pin meets respectively the pin P00～P07 of micro controller system (W78E52),
Described button K1～K16 completes coal piling to logic control chip (XC9536), smog, tearing tape, sideslip, suddenly stops, weighs, the setting of temperature, speed parameter, and described logic control chip (XC9536) judges whether et out of order judged result is fed back to single chip control module of belt conveyer according to preset parameter value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849872.6U CN203889552U (en) | 2013-12-20 | 2013-12-20 | Comprehensive protection control system for belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849872.6U CN203889552U (en) | 2013-12-20 | 2013-12-20 | Comprehensive protection control system for belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203889552U true CN203889552U (en) | 2014-10-22 |
Family
ID=51715981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849872.6U Expired - Lifetime CN203889552U (en) | 2013-12-20 | 2013-12-20 | Comprehensive protection control system for belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203889552U (en) |
-
2013
- 2013-12-20 CN CN201320849872.6U patent/CN203889552U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104865493B (en) | CELL panels open short-circuit detecting device and method | |
| CN201583828U (en) | Embedded electromechanical device state monitoring and fault diagnosis system | |
| CN201218761Y (en) | On-line monitoring system for hydraulic support working condition of coal mine down-hole working surface | |
| CN103915890B (en) | DC source apparatus for fast switching and method | |
| CN203643761U (en) | Triple redundancy concurrent control module | |
| CN204621267U (en) | A kind of tooth machining unit control system | |
| CN103708201B (en) | A kind of comprehensive protection control system of belt conveyor | |
| CN104925482A (en) | Belt conveyor fault location display and alarm device | |
| CN203889552U (en) | Comprehensive protection control system for belt conveyor | |
| CN102464201A (en) | Intelligent protection system for long-distance belt machine | |
| CN206737953U (en) | A kind of mine gas monitors combined control equipment | |
| CN102426304A (en) | Automatic tester of direct current microcomputer protective device and testing method thereof | |
| CN209264906U (en) | CVC-200T hardware intelligent test system | |
| CN202815473U (en) | Intelligent controller of shot blasting machine | |
| CN203276007U (en) | Intelligent data acquisition monitoring device based on CAN bus | |
| CN206270741U (en) | A kind of chip mounter centralized control apparatus | |
| CN212872720U (en) | Industrial field device fault detection device | |
| CN107064679A (en) | New Electric Quality Monitoring and monitoring method | |
| CN202660233U (en) | Gasholder pressure detection system | |
| CN102581334A (en) | Boring and detection all-in-one machine for circuit board | |
| CN112360673A (en) | Device and method for monitoring opening degree of guide vane of speed regulator of water turbine | |
| CN202897708U (en) | Monitoring device of traction machine used for elevator | |
| CN205204656U (en) | Crane moment limiter | |
| CN204002931U (en) | A kind of new type mining communication system | |
| CN213010434U (en) | Adhesive tape machine comprehensive protection instrument with CAN bus communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |