CN100391572C - Alarm device for servo pressure-preventing rake in thickener - Google Patents
Alarm device for servo pressure-preventing rake in thickener Download PDFInfo
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- CN100391572C CN100391572C CNB2006101020347A CN200610102034A CN100391572C CN 100391572 C CN100391572 C CN 100391572C CN B2006101020347 A CNB2006101020347 A CN B2006101020347A CN 200610102034 A CN200610102034 A CN 200610102034A CN 100391572 C CN100391572 C CN 100391572C
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- thickener
- encoder
- rake
- signal
- alarm device
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Abstract
The alarm device for servo pressure-preventing rake in thickener includes two parts, one servo thickener rake speed measuring mechanism and one controlling alarm. The thickener rake speed measuring mechanism includes mainly one connecting board, one n-shaped shaft coupler, one servo wheel, one coder connecting part, one coder, one blossom shaped shaft coupler, one driving shaft, one bearing cover, one U-shaped connecting frame plug and one spring. The controlling alarm includes one signal converting controller, one radio transmission station and one industrial control computer. The present invention detects the speed of thickener rake, and has accurate warning, information management and in-line detection, and is suitable for use in thickener tank of coal separation plant.
Description
Technical field
The invention belongs to thickener and press rake prevention warning device, especially a kind of speed with the thickener rake is the servo pressure-preventing rake in thickener autoalarm of detected object.
Background technology
Coal preparation plant is in the black water processing procedure, and majority all uses raker thickener to clarify black water.When using thickener, usually there is the rake of pressure incident to take place, in case take place to press rake, the overflow water concentration over-standard influences coal preparation plant's quality of cleaned coal and output, has to when serious stop production and handles, and causes enormous economic loss.If can press prevention of rake incident and forecast to thickener, in time take measures, prevent to press the generation of rake incident, guarantee carrying out smoothly of production, have practical economic implications.
The alarm device for servo pressure-preventing rake proposition that still belongs to the first time.Just press rake to detect, existing both at home and abroad at present is the current detecting mode, and current detecting mainly is to detect the electric current of thickener mud scraper drive motors, judges whether to press the rake problem.When the electric current of drive motors during, think and to take place to press rake, and send alarm signal greater than a certain setting value.But failure phenomenon appears in electric current detecting method regular meeting; reason is exactly that thickener takes place to press when harrowing; skidding takes place between driving wheel and the track; motor runs well, to such an extent as to and motor current does not change or the little current detecting of the variation of electric current can't differentiate the variation of this electric current the time.The method of current detecting does not have the warning effect of pressing the rake prevention, and causing still has the generation of pressing the rake incident.The warning device of servo pressure-preventing rake is proposed first at this situation inventor.
Summary of the invention
The problem to be solved in the present invention is that generation is pressed the rake incident and directly caused stopping production, and causes great economic loss when using raker thickener to clarify black water.Based on this, the invention provides a kind of alarm device for servo pressure-preventing rake, to reach the purpose that the pressure-preventing rake incident takes place.
Alarm device for servo pressure-preventing rake of the present invention, the realization of its technical scheme are that connecting plate is connected on the n type shaft coupling frame also rotatable by bearing pin; Supporting roller and encoder are installed on the power transmission shaft, and its two ends are equipped with bearing and with bolt bearing (ball) cover and bearing air cover are fixed; The axle of encoder is connected with power transmission shaft by the plum blossom shaft coupling, and the shell of encoder is connected with n type shaft coupling frame by the encoder coupling piece; Signal converting controller is connected with the wireless transmission radio station with encoder respectively by holding wire, and the signal of encoder is sent to the wireless receiving part, and the wireless receiving part links to each other with Industrial Control Computer by holding wire.
Alarm device for servo pressure-preventing rake in thickener in above-mentioned, the surface of described supporting roller scribbles the polyurethane friction material; Described encoder is photoelectric encoder or electromagnetic type encoder.
A kind of alarm method that is used for alarm device for servo pressure-preventing rake in thickener of the present invention, this method is that the speed with the thickener rake is detected object, speed by pulse coder record supporting roller, through signal converting controller pulse signal is converted to the signal of telecommunication, the signal of telecommunication is by the wireless transmission radio station, signal is passed to Industrial Control Computer, by with the controlling alarm program in the speed of the supporting roller set, compare and judge whether to report to the police.
The operation principle of alarm device for servo pressure-preventing rake of the present invention: at first be the rear that the connecting plate of servo-actuated velocity measurement mechanisms is fixed to thickener rake formula traffic direction, supporting roller just in time is pressed onto on the track.When rotating, rake drives the velocity measurement mechanisms motion, because track is fixed, frictional force between track and the supporting roller drives the supporting roller rotation, make encoder rotation output pulse signal, pulse signal is transformed into data signal by switching controller, deliver to the wireless transmission radio station, utilize wireless transmission to send signal to industrial computer, whether send sound and light alarm by the computing and the judgement decision of industrial computer.
The present invention uses wireless communication technique, has solved the contradiction of rake rotation and signal transmission dexterously; Having created alarm device for servo pressure-preventing rake, is detected object with the speed of thickener rake, has solved the traditional electrical flow pattern and has pressed the rake warning device in the track raker thickener inaccurate problem of reporting to the police; At alarm device for servo pressure-preventing rake PID control theory model has been proposed.
The invention with dynamic pressure rake detection alarm device, be detected object with the speed of thickener rake, solved traditional pressure rake detection alarm device in the track raker thickener inaccurate problem of reporting to the police.By the software design, be convenient to realize data analysis, information system management and online detection.
Description of drawings
Fig. 1 is a servo-actuated velocity measurement mechanisms assembled construction schematic diagram of the present invention
Fig. 2 is that the signal of servo pressure-preventing rake in thickener warning system of the present invention transmits schematic diagram.
Among the figure: 1: packing ring, 2: connecting plate, 3: pin, 4: bearing pin, 5:n type shaft coupling frame, 6: supporting roller, 7: bearing air cover, 8: sealing gasket, 9: encoder coupling piece, 10: encoder, 11: plum blossom shaft coupling, 12: bolt, 13: track, 14: bearing, 15: power transmission shaft, 16: bearing (ball) cover, 17: connect pedestal U type plug, 18: spring, 19: flat key, 20: signal converting controller, 21: antenna transmission radio station, 22: Industrial Control Computer.
The specific embodiment
Can be further detailed the present invention in conjunction with embodiment and accompanying drawing, present embodiment is to explanation of the present invention, the present invention is not made any restriction.
Embodiment 1
The present invention includes thickener rake servo-actuated velocity measurement mechanisms and control warning part.
Thickener rake servo-actuated velocity measurement mechanisms mainly comprises: connect pull 2, bearing pin 4, n type shaft coupling frame 5, supporting roller 6, bearing (ball) cover 7, encoder connecting shaft spare 9, encoder 10, plum blossom shaft coupling 11, power transmission shaft 15, bearing air cover 7, connecting shaft frame U type plug 17, spring 18,19: flat key.
Connecting plate 2 is connected on the rake of thickener by bolt, and the supporting roller 6 that makes the surface scribble the polyurethane friction material can just in time be pressed onto on the track of thickener and be advisable.Bearing pin 4 connects together n type shaft coupling frame 5 with connecting plate 2, n type shaft coupling frame 5 can rotate around bearing pin 4.Power transmission shaft 15 connects together supporting roller 6 with encoder 10, power transmission shaft 15 two ends are equipped with taper roll bearing 14 and are played the effect that reduces frictional force, and two ends are fixing with bearing (ball) cover 16 and bearing air cover 7 with the bolt of 4 M8 respectively, play the effect of seal protection.Bolt with M5 is connected with n type shaft coupling frame 5 by the shell of encoder coupling piece 9 with photoelectric encoder or electromagnetic type encoder 10.The axle of encoder 10 uses plum blossom shaft coupling 11 to connect in the connection of power transmission shaft 15.
Control is reported to the police and is partly mainly comprised: signal converting controller 20, wireless transmission radio station 21, Industrial Control Computer 22.
Wireless transmission radio station 21 comprises wireless transmission part and wireless receiving part.Signal converting controller 20 partly is connected with the transmission of encoder 10 with wireless transmission radio station 21 respectively by holding wire, by Wireless transmission mode the signal of encoder 10 is sent to the wireless receiving part.The wireless receiving part links to each other with Industrial Control Computer 22 by holding wire.
The overall structure of alarm device for servo pressure-preventing rake in thickener of the present invention is that connecting plate 2 is connected on the n type shaft coupling frame 5 also rotatable by bearing pin 4; Supporting roller 6 is installed on the power transmission shaft 15 with encoder 10, and bearing 14 and bearing (ball) cover 16 and bearing air cover 7 is fixing with bolt 12 is equipped with at its two ends; The axle of encoder 10 is connected with power transmission shaft 15 by plum blossom shaft coupling 11, and the shell of encoder 10 is connected with n type shaft coupling frame 5 by encoder coupling piece 9; Signal converting controller 20 is connected with wireless transmission radio station 21 with encoder 10 respectively by holding wire, and the signal of encoder 10 is sent to the wireless receiving part, and the wireless receiving part links to each other with Industrial Control Computer 22 by holding wire.
Embodiment 2
The alarm method of alarm device for servo pressure-preventing rake in thickener of the present invention, speed with the thickener rake is detected object, speed by pulse coder 10 record supporting rollers 6, through signal converting controller 20 pulse signal is converted to the signal of telecommunication, the signal of telecommunication is by wireless transmission radio station 21, signal is passed to Industrial Control Computer 22, by with the controlling alarm program in the speed of the supporting roller 6 set, compare and judge whether to report to the police.
Claims (4)
1. an alarm device for servo pressure-preventing rake in thickener is characterized in that connecting plate (2) is connected n type shaft coupling frame (5) by bearing pin (4) and goes up and turn; Supporting roller (6) is installed on the power transmission shaft (15) with encoder (10), and bearing (14) and bearing (ball) cover (16) and bearing air cover (7) is fixing with bolt (12) is equipped with at its two ends; The axle of encoder (10) is connected with power transmission shaft (15) by plum blossom shaft coupling (11), and the shell of encoder (10) is connected with n type shaft coupling frame (5) by encoder coupling piece (9); Signal converting controller (20) is connected with wireless transmission radio station (21) with encoder (10) respectively by holding wire, and the signal of encoder (10) is sent to the wireless receiving part, and the wireless receiving part links to each other with Industrial Control Computer (22) by holding wire.
2. alarm device for servo pressure-preventing rake in thickener as claimed in claim 1 is characterized in that the surface of supporting roller (6) scribbles the polyurethane friction material.
3. alarm device for servo pressure-preventing rake in thickener as claimed in claim 1 is characterized in that encoder (10) is photoelectric encoder or electromagnetic type encoder.
4. alarm method that is used for the described alarm device for servo pressure-preventing rake in thickener of claim 1, this method is that the speed with the thickener rake is detected object, speed by pulse coder record supporting roller, through signal converting controller pulse signal is converted to the signal of telecommunication, the signal of telecommunication is by the wireless transmission radio station, signal is passed to Industrial Control Computer, by with the controlling alarm program in the speed of the supporting roller set, compare and judge whether to report to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101020347A CN100391572C (en) | 2006-10-16 | 2006-10-16 | Alarm device for servo pressure-preventing rake in thickener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101020347A CN100391572C (en) | 2006-10-16 | 2006-10-16 | Alarm device for servo pressure-preventing rake in thickener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1973946A CN1973946A (en) | 2007-06-06 |
| CN100391572C true CN100391572C (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101020347A Expired - Fee Related CN100391572C (en) | 2006-10-16 | 2006-10-16 | Alarm device for servo pressure-preventing rake in thickener |
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| Country | Link |
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| CN (1) | CN100391572C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102302870A (en) * | 2011-06-08 | 2012-01-04 | 淮北市中芬矿山机器有限责任公司 | Wireless communication method for peripheral traction thickener |
| CN102659193B (en) * | 2012-05-04 | 2013-05-15 | 山东省环境保护科学研究设计院 | Over-moment early warning protective method for mechanical slag removal grid machine |
| CN115337682A (en) * | 2022-09-06 | 2022-11-15 | 水口山有色金属有限责任公司 | Pressure rake prevention protection device and method for peripheral transmission thickener |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910843A (en) * | 1972-12-22 | 1975-10-07 | Warman Equip Int | Thickener mechanism |
| CN2293368Y (en) * | 1996-05-03 | 1998-10-07 | 江苏省海峰电力机械股份有限公司 | Automatic lifting raker efficient thickener |
-
2006
- 2006-10-16 CN CNB2006101020347A patent/CN100391572C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910843A (en) * | 1972-12-22 | 1975-10-07 | Warman Equip Int | Thickener mechanism |
| CN2293368Y (en) * | 1996-05-03 | 1998-10-07 | 江苏省海峰电力机械股份有限公司 | Automatic lifting raker efficient thickener |
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| CN1973946A (en) | 2007-06-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Intra-Italia Hydraulics (Foshan Shunde) Co., Ltd. Assignor: Taiyuan University of Technology Contract fulfillment period: 2008.11.23 to 2013.11.23 contract change Contract record no.: 2009440001708 Denomination of invention: Alarm device for servo pressure-preventing rake in thickener Granted publication date: 20080604 License type: Exclusive license Record date: 20091023 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.11.23 TO 2013.11.23; CHANGE OF CONTRACT Name of requester: FOSHAN CITY SHUNDE DISTRICT INTRA-ITALY HYDRAULICS Effective date: 20091023 |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20121016 |