CN202933522U - Thickener provided with automatic control overload protection device - Google Patents
Thickener provided with automatic control overload protection device Download PDFInfo
- Publication number
- CN202933522U CN202933522U CN201220459273.9U CN201220459273U CN202933522U CN 202933522 U CN202933522 U CN 202933522U CN 201220459273 U CN201220459273 U CN 201220459273U CN 202933522 U CN202933522 U CN 202933522U
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- China
- Prior art keywords
- rake
- harrow frame
- main shaft
- carry
- overload protection
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Abstract
The utility model discloses a thickener provided with an automatic control overload protection device, which comprises a spindle, spindle drive systems, a plurality of rake frames, a torque meter, a PLC (programmable logic controller), and a plurality of torque sensors, wherein each rake frame is connected with a rake frame ascending and descending system; each rake frame ascending and descending system comprises a rake lifting drive device, an inward rake lifting chain and an outward rake lifting chain; the inward rake lifting chains and the outward rake lifting chains are connected with the rake frames and the rake lifting drive devices; pulleys are arranged on paths of the inward rake lifting chains and the outward rake lifting chains; the torque sensors are arranged on the rake frames and the spindle respectively, and electrically connected with the torque meter; and the torque meter, the rake lifting drive devices and the spindle drive systems are connected with the PLC. As the torque sensors are configured at stress point parts where the spindle and the rake frames are subjected to stronger forces, the automatic control overload protection of the thickener is achieved by the torque meter and the PLC. The thickener can automatically control and adjust a motion state of the spindle and loads of the rake frames according to the mud scraping resistance.
Description
Technical field
The utility model relates to a kind of automatic overload protection technology of plant equipment, relates in particular to a kind of concentrator with automatic control overload protection arrangement.
Background technology
At present, the concentrator that uses in industrial production mostly adopts overload-alarm to shut down or realizes elevating control to harrow frame by the variation of Hydraulic Station system pressure the overload protection of main drive shaft and harrow frame.
Employing warning halt mode is done overload protection, separately needs by manually in time carrying rake or making respective handling after shutdown, and the height of harrow frame lifting also need be determined at random through exploration.Bring corresponding difficulty and inconvenience to operation like this.And, because main shaft and the harrow frame of this scheme is an integral body, lifting simultaneously.
Control by the variation of Hydraulic Station system pressure the scheme that overload protection is done in the harrow frame lifting and adopt, be mainly that its system pressure of oil motor by drive shaft changes and controls main shaft and be fixed on harrow frame integral elevating on main shaft.Due to main shaft and the harrow frame overall weight larger, its lifting also needs larger power.In addition, this scheme is also can only integral elevating, can not be to the lifting respectively of each harrow frame.Like this, in scraping the mud process, the alluvial resistance is little, and harrow frame and the main shaft that also need follow overload without the harrow frame of overload one side promote together, causes the waste of operating efficiency reduction and reactance capacity.
The utility model content
For above-mentioned prior art; the utility model provides a kind of concentrator with automatic control overload protection arrangement; by disposing torque sensor at main shaft and the stressed larger stress point of all harrow frames position, realize automatic control overload protection to concentrator by torquemeter and PLC controller.
In order to solve the problems of the technologies described above, the utlity model has the technical scheme that the concentrator of automatic control overload protection arrangement is achieved is: comprise main shaft, spindle drive systems and a plurality of harrow frame, each harrow frame all connects a harrow frame jacking system, described harrow frame jacking system comprise carry the rake drive unit, with harrow frame with carry that the rake drive unit is connected in carry rake chain and carry the rake chain outward, carry the rake chain and carry the path of harrowing chain outward in described and be provided with pulley; Also comprise torquemeter, PLC controller and be separately positioned on harrow frame and main shaft on a plurality of torque sensors, all torque sensors all are electrically connected with described torquemeter, described torquemeter, describedly carry the rake drive unit and are connected spindle drive systems and all are connected with described PLC controller.
The utlity model has the concentrator of automatic control overload protection arrangement; wherein; the described top of carrying rake drive unit and described main shaft is fixed; the top of described main shaft is provided with annular multi-pole without seam wiping wire casing, described carry the power of rake drive unit and control power acquisition with multipole without the seam sliding contact line system.
The bottom of described main shaft is welded with the harrow frame seat identical with harrow frame quantity, passes through the harrow frame rod hinge connection between described harrow frame seat and described harrow frame.
Compared with prior art, the beneficial effects of the utility model are:
Overload protection arrangement in the utility model is according to scraping the load that motion state and the harrow frame of main shaft were controlled and regulated to the mud resistance automatically.
Description of drawings
Fig. 1 is equipped with the front view that the utility model is controlled the concentrator of overload protection arrangement automatically;
Fig. 2 is the local enlarged diagram in A place in Fig. 1;
Fig. 3 is the structured flowchart of overload protection arrangement in the utility model.
In figure:
1-high-low pressure current collection transmission system 2-spindle drive systems 3-puies forward the rake drive system
Carry the rake chain in 4-harrow frame 5-main shaft 6-
7-carries rake chain 8-harrow frame connecting rod 9-harrow frame seat outward
10-pulley 11-distribution box 12-high-voltage collector
13-low pressure current-collector 14-height piezoelectricity trolley 20-torque sensor
30-torquemeter 40-PLC controller.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in further detail.
as depicted in figs. 1 and 2, the utlity model has automatic control overload protection arrangement concentrator, comprise main shaft 5, spindle drive systems 2 and a plurality of harrow frame 4, each harrow frame 4 all connects a harrow frame jacking system, described harrow frame jacking system comprises carries rake drive unit 3, with harrow frame 4 with carry that rake drive unit 3 is connected in carry rake chain 6 and carry outward and harrow chain 7, carrying rake chain 6 in described is connected with the electrical hoist that rake drive unit 3 is carried in an end of being connected to carry rake chain 7 and conduct, the other end of carrying rake chain 6 in described is hinged on a side (being the front end of harrow frame) of close main shaft 5 on harrow frame 4, the described outer other end of carrying rake chain 7 is hinged on harrow frame 4 side (being the rear end of harrow frame) away from main shaft 5, carry rake chain 6 in described and carry the path of harrowing chain 7 outward and be provided with pulley 10, the described rake drive unit 3 of carrying is fixed with the top of described main shaft 5, the top of described main shaft 5 is provided with annular multi-pole without seam wiping wire casing, described carry the power of rake drive unit 3 and control power acquisition with multipole without the seam sliding contact line system.The bottom of described main shaft 5 is welded with the harrow frame seat 9 identical with harrow frame 4 quantity, and is hinged by harrow frame connecting rod 8 between described harrow frame seat 9 and described harrow frame 4.As shown in Figure 3, also comprise torquemeter 30, PLC controller 40 in the utility model and be separately positioned on harrow frame 4 and main shaft 5 on a plurality of torque sensors 20, all torque sensors 20 all are electrically connected with described torquemeter 30, described torquemeter 30, describedly carry rake drive unit 3 and are connected spindle drive systems 2 and all are connected with described PLC controller 40.
Concentrator in embodiment is a center driving concentrator, and as shown in Figure 1, main shaft 5 drives by spindle drive systems 2, can do 360 degree rotations.Harrow frame seat 9 is weldingly fixed on the bottom of main shaft 5, and hinged by harrow frame connecting rod 8 and harrow frame 4, and harrow frame 4 is rotated as the center of circle by the pin joint of harrow frame connecting rod 8 take harrow frame seat 9, thereby harrow frame 4 is moved up and down, to reach the effect of lifting harrow frame.Every suit harrow frame jacking system is controlled a harrow frame 4, the rake drive system 3 of carrying in the harrow frame jacking system is electrical hoist, by interiorly carrying rake chain 6, carry rake chain 7 and pulley 10 outward, can control by promoting harrow frame front-end and back-end the independent lifting of each harrow frame by electrical hoist.
Follow main shaft 5 and together rotate owing to carrying top that rake drive unit 3 need be arranged on main shaft 5.All need follow main shaft 5 for the transmission line of carrying the rake power line that transmits electric power of drive unit 3 and transmission of electric signals and together rotate, and describedly carry the power of rake drive unit 3 and control power supply etc. and all can not follow main shaft 5 and rotate.Therefore, be provided with annular multi-pole on the top of described main shaft 5 without seam wiping wire casing, described carry the power of rake drive unit 3 and control power acquisition with multipole without the seam sliding contact line system, by high-voltage collector 12, low pressure current-collector 13, electric power transfer is arranged on annular multi-pole without the high and low piezoelectricity trolley 14 seam wiping wire casing from the main power source of distribution box 11 outputs, thereby solved this problem, as shown in Figure 2.
In addition, in each harrow frame jacking system, the lifting limiting and protecting device is housed all, is used for avoiding the harrow frame lifting to cross the harrow frame that limit waits accidental cause to cause stuck, the generation of the situations such as motor overload damage.
As shown in Figure 3, torque sensor 20 passes to torquemeter 30 with the data that collect, only have the torque load of one of them harrow frame 4 to exceed normal value if torquemeter 30 is measured, under the automatic control of torquemeter 30 and PLC controller 40, this harrow frame 4 will be promoted separately or be reduced.And other harrow frames all work.Except the situation that the stuck generation outage of accident is shut down, the various situations of other appearance are all completed under equipment runs well non-stop-machine situation automatically, thereby have embodied the degree that the utility model is controlled automatically.
The utility model realizes that the process of the automatic control of overload protection is:
Each harrow frame is arranged respectively four kinds of operating mode torque parameter values, comprise 1 normal range value, 2 lower than normal value, and 3 higher than normal value, the Up limit of 4 each harrow frames and main shaft.The torque sensor 20 that is arranged in the equipment operation process on main shaft 5 and harrow frame 4 passes to torquemeter 30 with current torque value, and torquemeter 30 in time shows the current value of main shaft 5 and harrow frame 4 load change.
In good condition when equipment operation, what torquemeter 30 showed is the numerical value of normal range (NR), and whole equipment of this expression is in the state of normally running in order at this moment.When the shown data of torquemeter 30 are numerical value lower than normal value, illustrate that main shaft 5 is less with the load of harrow frame 4, belong to Light Condition, at this moment torquemeter 30 is except the current torque numerical value that shows main shaft 5 and harrow frame 4, feed back simultaneously a signal to PLC controller 40, and harrow drive unit 3 by carrying in these PLC controller 40 startup harrow frame jacking systems, in order to reduce the position of harrow frame 4, make it to enter the mud state of scraping.Along with the reduction of harrow frame 4 positions, scrape the mud resistance increases naturally thereupon, and the load of main shaft 5 and harrow frame 4 increases, and the shown torque value of torquemeter 30 also can increase, until it when increasing numerical value to normal range (NR), illustrates that harrow frame 4 has entered into the normal operation state of section.At this moment torquemeter 30 except showing this regime values, sends again a signal to PLC controller 40 simultaneously, and controls the harrow frame jacking system by this PLC controller 40, makes the position of harrow frame 4 stop descending, thereby makes concentrator keep normal operation.
When one or several harrow frame 4 scrape the mud resistance increment, the paranormal torque value of load, namely data are higher than normal value, but when also not yet arriving Up limit.At this moment torquemeter 30 is except demonstrating current torque value, feed back simultaneously a signal to PLC controller 40, start the harrow frame jacking system by this PLC controller 40, the harrow frame 4 that load is extraordinary is carried rake, scrape mud resistance and harrow frame load with reduction, the torque value that torquemeter 30 shows also can decrease.When harrow frame is raised to when normally scraping between the mud Resistance Level, the torque value that harrow frame load and torquemeter 30 show has also decreased regime values, illustrates that harrow frame enters into again normally to scrape mud resistance duty.At this moment torquemeter 30 except showing this normal torque value, sends again a signal simultaneously by PLC controller 40, controls the harrow frame jacking system and stops carrying rake, and concentrator will keep normal operation.
Scraping when harrow frame 4 and occur suddenly the stuck or alluvial of the foreign matter accidental cause and to cause certain harrow frame to scrape the mud resistance excessive such as too much in the mud process, stress point torque value above or a plurality of harrow frames that reach capacity are suddenly scraped the mud resistance and are strengthened simultaneously and cause main shaft load suddenly more than the value of reaching capacity.At this moment, torquemeter 30 and gives the alarm by PLC controller 40 at signal of moment feedback except showing above torque value, the shutdown of cutting off the electricity supply simultaneously.
Although the above is described the utility model in conjunction with figure; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; in the situation that do not break away from the utility model aim, can also make a lot of distortion, within these all belong to protection of the present utility model.
Claims (4)
1. one kind has automatic control overload protection arrangement concentrator, comprises main shaft (5), spindle drive systems (2) and a plurality of harrow frame (4), it is characterized in that,
Each harrow frame (4) all connects a harrow frame jacking system, described harrow frame jacking system comprise carry rake drive unit (3), with harrow frame (4) and carry that rake drive unit (3) is connected in carry rake chain (6) and carry outward and harrow chain (7), carry harrowing chain (6) and carrying the path of harrowing chain (7) outward in described and be provided with pulley (10);
Also comprise torquemeter (30), PLC controller (40) and be separately positioned on harrow frame (4) and main shaft (5) on a plurality of torque sensors (20), all torque sensors (20) all are electrically connected with described torquemeter (30), described torquemeter (30), describedly carry rake drive unit (3) and are connected spindle drive systems (2) and all are connected with described PLC controller (40).
2. has according to claim 1 the concentrator of automatic control overload protection arrangement; it is characterized in that; the described rake drive unit (3) of carrying is fixed with the top of described main shaft (5); the top of described main shaft (5) is provided with annular multi-pole without seam wiping wire casing, described carry the power of rake drive unit (3) and control power acquisition with multipole without the seam sliding contact line system.
3. has according to claim 1 the concentrator of automatic control overload protection arrangement; it is characterized in that; the bottom of described main shaft (5) is welded with the harrow frame seat (9) identical with harrow frame (4) quantity, and is hinged by harrow frame connecting rod (8) between described harrow frame seat (9) and described harrow frame (4).
4. have according to claim 1 the concentrator of automatic control overload protection arrangement, it is characterized in that, the described rake drive unit (3) of carrying is electrical hoist.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220459273.9U CN202933522U (en) | 2012-09-10 | 2012-09-10 | Thickener provided with automatic control overload protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220459273.9U CN202933522U (en) | 2012-09-10 | 2012-09-10 | Thickener provided with automatic control overload protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202933522U true CN202933522U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220459273.9U Expired - Lifetime CN202933522U (en) | 2012-09-10 | 2012-09-10 | Thickener provided with automatic control overload protection device |
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| Country | Link |
|---|---|
| CN (1) | CN202933522U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836163A (en) * | 2017-04-15 | 2017-06-13 | 冯明月 | Single rake early warning type rotary teeth rake trash |
| CN107952263A (en) * | 2017-10-26 | 2018-04-24 | 上海市政工程设计研究总院（集团）有限公司 | A kind of adaptive hydraulic cyclone desilting method changed greatly for turbidity |
| CN107998693A (en) * | 2017-10-26 | 2018-05-08 | 上海市政工程设计研究总院（集团）有限公司 | A kind of adaptive hydraulic cyclone desilting device changed greatly for turbidity |
| CN109732783A (en) * | 2019-01-14 | 2019-05-10 | 安徽东巨新型建材有限公司 | A kind of tailing filling automatic control system and its application method |
| CN111686485A (en) * | 2020-05-14 | 2020-09-22 | 南京奥伯尔环保设备有限公司 | Automatic mud scraping control device |
| CN112791462A (en) * | 2021-02-02 | 2021-05-14 | 鲁西化工集团股份有限公司煤化工二分公司 | Control system and method for settling tank raking machine |
| CN114797191A (en) * | 2022-04-28 | 2022-07-29 | 包头钢铁（集团）有限责任公司 | Method for quickly judging fault source point of rake frame of central transmission thickener |
-
2012
- 2012-09-10 CN CN201220459273.9U patent/CN202933522U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106836163A (en) * | 2017-04-15 | 2017-06-13 | 冯明月 | Single rake early warning type rotary teeth rake trash |
| CN107952263A (en) * | 2017-10-26 | 2018-04-24 | 上海市政工程设计研究总院（集团）有限公司 | A kind of adaptive hydraulic cyclone desilting method changed greatly for turbidity |
| CN107998693A (en) * | 2017-10-26 | 2018-05-08 | 上海市政工程设计研究总院（集团）有限公司 | A kind of adaptive hydraulic cyclone desilting device changed greatly for turbidity |
| CN107952263B (en) * | 2017-10-26 | 2024-04-05 | 上海市政工程设计研究总院（集团）有限公司 | Self-adaptive hydrocyclone sand settling method for large turbidity change |
| CN107998693B (en) * | 2017-10-26 | 2024-08-09 | 上海市政工程设计研究总院（集团）有限公司 | Self-adaptive hydrocyclone sand settling device with large turbidity change |
| CN109732783A (en) * | 2019-01-14 | 2019-05-10 | 安徽东巨新型建材有限公司 | A kind of tailing filling automatic control system and its application method |
| CN109732783B (en) * | 2019-01-14 | 2021-04-09 | 安徽东巨新型建材有限公司 | Automatic tailing filling control system and application method thereof |
| CN111686485A (en) * | 2020-05-14 | 2020-09-22 | 南京奥伯尔环保设备有限公司 | Automatic mud scraping control device |
| CN112791462A (en) * | 2021-02-02 | 2021-05-14 | 鲁西化工集团股份有限公司煤化工二分公司 | Control system and method for settling tank raking machine |
| CN114797191A (en) * | 2022-04-28 | 2022-07-29 | 包头钢铁（集团）有限责任公司 | Method for quickly judging fault source point of rake frame of central transmission thickener |
| CN114797191B (en) * | 2022-04-28 | 2024-06-11 | 包头钢铁（集团）有限责任公司 | Method for rapidly judging fault source point of harrow frame of central transmission thickener |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |