CN106185636A - A kind of bulk goods door machine grab bucket crawl amount real-time control method and system - Google Patents
A kind of bulk goods door machine grab bucket crawl amount real-time control method and system Download PDFInfo
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- CN106185636A CN106185636A CN201610770127.0A CN201610770127A CN106185636A CN 106185636 A CN106185636 A CN 106185636A CN 201610770127 A CN201610770127 A CN 201610770127A CN 106185636 A CN106185636 A CN 106185636A
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- grab bucket
- rope
- power set
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- door machine
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/46—Position indicators for suspended loads or for crane elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/52—Details of compartments for driving engines or motors or of operator's stands or cabins
- B66C13/54—Operator's stands or cabins
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a kind of bulk goods door machine grab bucket crawl amount real-time control method and system, analog quantity is exported to PLC by installing a current potential adjusting knob in PLC additional, the size adjustment support rope output torque of the electric potential signal that PLC exports according to current potential adjusting knob, when utilizing electric-control system to realize grab bucket Guan Bi, increase certain support rope output torque, reduce the degree of depth that takes of grab bucket, and then reduce the crawl amount of grab bucket.Bulk goods door machine of the present invention grab bucket crawl amount real-time control method and system, reduce the requirement of opposite house machine driver operation level, alleviate the labor intensity of driver, objectively also reduce the risk having an accident.
Description
Technical field
The invention belongs to a machine grab bucket technical field, especially relate to a kind of bulk goods door machine grab bucket real-time controlling party of crawl amount
Method and system.
Background technology
Utilize technological means to ensure production operation safety, improve boats and ships and unload efficiency, preferably serve production always
The emphasis of port and pier company techniques department research.Along with being continuously increased of company working's amount, the kind of goods of unloading the most more is come
The most.My company's door machine rated load weight is 40t at present, and the goods proportion unloaded, substantially between 1.9-2.8, is unloaded the most on year-on-year basis
The production operation efficiency of parcel is the most different, produce the reason of this phenomenon mainly have following some:
1, in general, the relatively low goods class of proportion of unloading efficiency comparison of unloading is high.When the goods class that proportion of unloading is relatively low, logical
Often select the light-duty grab bucket of big bucket capacity.When capturing goods, the weight of full bucket is the most also at below 40t, opposite house machine driver operation
Technology requires relatively low.The driver's working performance operating the higher driver of level of relative relatively low with operation level of relative is more or less the same.
2, the goods class that proportion of unloading is higher.When the goods class that proportion of unloading is higher, when selecting the grab bucket of little bucket capacity, can cause
Even if grabbing full goods, weight does not reaches 40t yet, wastes the performance capacity of a machine.And select the grab bucket of big bucket capacity to capture
Time, grab bucket full load gross weight can cause overloading beyond the maximum operation load of door machine.Door machine driver can only reopen
Grab bucket, makes part goods spill, more again closes bucket.The process of this opening and closing bucket again, causes temporal waste, reduces work
Industry efficiency.But, the door machine driver that operation level is high can be according in the Guan Bi degree of the grab bucket during capturing and drivers' cab
Weight show to come the crawl amount that manual control is grabbed bucket, make crawl amount substantially remain in 40t, it is to avoid the mistake of opening and closing bucket again
Journey, it is ensured that working performance.The goods class that proportion is higher so unloading, opposite house machine driver operation technology requires higher.Operation level
Driver's working performance that of a relatively high driver's working performance ratio operation level of relative is relatively low is high.
According to above analysis, when the goods that proportion of unloading is higher, improving working performance has a following several method:
1, storing the grab bucket of a large amount of various different bucket capacities, the goods of every kind of proportion has applicable grab bucket.
2, the operation level of all door machine drivers is the highest.During the higher goods of proportion of unloading, still select grabbing of big bucket capacity
Bucket, relies on individual's operation of driver to ensure working performance.
But both the above method the most all cannot realize.The most still from management
All cannot meet making, deposit substantial amounts of grab bucket.Secondly the door machine driver that operation level is high is minority after all, it is impossible to Mei Gesi
Machine all reaches a high level.
Summary of the invention
In view of this, it is contemplated that propose a kind of bulk goods door machine grab bucket crawl amount real-time control method and system, with reality
During the higher goods of proportion of unloading now, utilize electric-control system to carry out assist driver and control the crawl amount of grab bucket so that grabbing of grab bucket
Taken amount substantially remains in same weight range, it is to avoid the process of opening and closing grab bucket again, it is ensured that working performance.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of bulk goods door machine grab bucket crawl amount real-time control system, including PLC, current potential adjusting knob, power dress
Put, support rope reel, opening and closing rope reel, support rope, opening and closing rope and grab bucket；
Described PLC is connected with described current potential adjusting knob and power set signal respectively, and described PLC connects
Receive the electric potential signal of described current potential adjusting knob, after this electric potential signal is analyzed and processed, adjust according to the size of this electric potential signal
The moment output size of power set；
Described power set include supporting rope power set and opening and closing rope power set；
Described support rope power set are in transmission connection with described support rope reel, and the described upper end supporting rope is fixed on described
Supporting on rope reel, lower end is fixing with described grab bucket to be connected；
Described opening and closing rope power set are in transmission connection with described opening and closing rope reel, and the upper end of described opening and closing rope is fixed on described
On opening and closing rope reel, lower end coordinates fixing with described grab bucket；
Further, described bulk goods door machine grab bucket crawl amount real-time control system also includes supporting rope locking mechanism, described
Support that rope locking mechanism is fixed between described support rope reel and grab bucket, and support that rope coordinates installation with described.
Further, described bulk goods door machine grab bucket crawl amount real-time control system also includes gravity sensor, described gravity
Sensor is fixed on the bottom surface of described grab bucket, and is connected with described PLC signal.
Further, described bulk goods door machine grab bucket crawl amount real-time control system also includes display, described display with
Described PLC signal connects.
Further, described bulk goods door machine grab bucket crawl amount real-time control system also includes range sensor, described distance
Sensor is fixed on the bottom of described grab bucket, and is connected with described PLC signal.
Further, described range sensor has multiple, and the plurality of range sensor is arranged in the bottom of described grab bucket
String.
Further, described support rope power set include supporting rope converter, supporting restrict motor and support rope reductor,
Described support rope converter with described support rope motor electrically connect, described support rope motor and described support restrict reductor be electrically connected
Connecing, described support rope reductor is in transmission connection with described support rope reel.
Further, described opening and closing rope power set include opening and closing rope converter, opening and closing rope motor and opening and closing rope reductor,
Described opening and closing rope converter electrically connects with described opening and closing rope motor, and described opening and closing rope motor is electrically connected with described opening and closing rope reductor
Connecing, described opening and closing rope reductor is in transmission connection with described opening and closing rope reel.
A kind of bulk goods door machine grab bucket crawl amount real-time control method, comprises the following steps:
(1) PLC exports control signal to power set, and power set drive grab bucket uniform descent to L height；
(2) PLC exports control signal to power set, and power set drive grab bucket to slow down decline until stopping；
(3) PLC exports control signal to opening and closing rope power set, and opening and closing rope power set drive grab bucket to close at full speed
Closing, PLC is to supporting rope power set output control signal simultaneously, supports that rope power set adjust output torque, and carries
Dynamic grab bucket adjusts and captures the degree of depth；
(4) PLC exports control signal to power set, and power set drive grab bucket to rise.
Further, described step (1) also includes that grab bucket moves horizontally process, and PLC turns to power set output
To order, power set drive door machine to turn to, and stop when hopper moves to directly over stack.
Further, described step (1) also include grab bucket opening procedure:
PLC exports control instruction to opening and closing rope power set, under opening and closing rope power set drive opening and closing rope at full speed
Fall, supports that rope is motionless simultaneously.
Further, the output torque information that the L in described step (1) is highly fed back to PLC by motor is true
Fixed.
Further, the grab bucket lower end that the height of the L in described step (1) is arrived by the range sensor measurement of grab bucket lower end
Range information to stack upper end determines, distance signal is delivered to PLC by range sensor.
Further, the support rope power set in described step (3) adjust output torque for supporting that rope power set increase
Add output torque, increase and support rope output torque, reduce the degree of depth that grab bucket captures, and then reduce the crawl amount of grab bucket.
Further, the moment in described step (3) is increased instruction and is controlled by current potential adjusting knob, current potential adjusting knob
Exporting different potentials signal by rotating to PLC, PLC is calculated by the electric potential signal of current potential adjusting knob and props up
Hold the moment parameter that rope power set should increase, and to supporting that rope power set output torque increase instruction and moment increase ginseng
Number.
Relative to prior art, bulk goods door machine of the present invention grab bucket crawl amount real-time control system and method have with
Lower advantage:
(1) bulk goods door machine of the present invention grab bucket crawl amount real-time control method and system, it is possible to reduce deposit grab bucket
Kind and quantity, it is achieved only utilize the grab bucket of a kind of bucket capacity to meet the needs of operation difference goods class.Reduce adopting of grab bucket
The cost purchase, store, keep in repair, managed, also eliminates part dangerous matter sources simultaneously, reduces security risk.
(2) bulk goods door machine of the present invention grab bucket crawl amount real-time control method and system, compare and currently rely primarily on
The individual skill of driver and operating experience control the crawl amount of grab bucket, reduce opposite house machine driver skill and the requirement of experience,
The present invention assists different drivers operations in the way of same standard, operates the relatively low driver of level under the present invention assists
Working performance substantially can meet or exceed average operation efficiency.
(3) bulk goods door machine of the present invention grab bucket crawl amount real-time control method and system, simple to operate, conversion side
Just, when certain goods of operation, different job positions or stage are the most different, as in operation to the requirement of grab bucket bucket capacity
Journey is changed grab bucket then needs stevedore to dismount, forklift transport etc., with about time 10 minutes, and utilize this mode to control to capture
Amount only needs driver's rotating switch, improves working performance equally.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the bulk goods door machine grab bucket crawl amount real-time control method schematic flow sheet described in the embodiment of the present invention；
Fig. 2 is the bulk goods door machine grab bucket crawl amount real-time control system principle schematic described in the embodiment of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Combination mutually.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " on ", D score,
Orientation or the position relationship of the instruction such as "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description rather than instruction or dark
The device or the element that show indication must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, except as otherwise noted, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, a kind of bulk goods door machine grab bucket crawl amount real-time control method in the present invention, comprise the following steps:
(1) PLC exports control signal to power set, and power set drive grab bucket uniform descent to L height；
(2) PLC exports control signal to power set, and power set drive grab bucket to slow down decline until stopping；
(3) PLC exports control signal to opening and closing rope power set, and opening and closing rope power set drive grab bucket to close at full speed
Closing, PLC is to supporting rope power set output control signal simultaneously, supports that rope power set adjust output torque, and carries
Dynamic grab bucket adjusts and captures the degree of depth；
(4) PLC exports control signal to power set, and power set drive grab bucket to rise.
Step (1) also includes that grab bucket moves horizontally process, and PLC exports diversion order to power set, and power fills
Put drive door machine to turn to, stop when hopper moves to directly over stack.
In step (1) also include grab bucket opening procedure:
PLC exports control instruction to opening and closing rope power set, under opening and closing rope power set drive opening and closing rope at full speed
Fall, supports that rope is motionless simultaneously, now supports that rope is by supporting the locking of rope locking mechanism.
The output torque information that L in step (1) is highly fed back to PLC by motor determines.
In step (1) L height by grab bucket lower end range sensor measurement arrive grab bucket lower end to stack upper end
Range information determines, distance signal is delivered to PLC by range sensor.
Moment in step (3) adjusts instruction increases instruction for moment, increases and supports rope output torque, reduces grab bucket and captures
The degree of depth, and then reduce grab bucket crawl amount.
Moment in step (3) is increased instruction and is controlled by current potential adjusting knob, and current potential adjusting knob is by rotating to PLC
Controller output different potentials signal, PLC is calculated by the electric potential signal of current potential adjusting knob and supports rope power set
The moment parameter that should increase, and to supporting that rope power set output torque increases instruction and moment increase parameter.
As in figure 2 it is shown, in the present invention a kind of bulk goods door machine grab bucket crawl amount real-time control system, including PLC,
Current potential adjusting knob, power set, support rope reel, opening and closing rope reel, support rope, opening and closing rope and grab bucket；
PLC is connected with current potential adjusting knob and power set signal respectively, and PLC receives current potential regulation rotation
The electric potential signal of button, after analyzing and processing this electric potential signal, the moment according to the size motivation of adjustment device of this electric potential signal is defeated
Go out size；
Power set include supporting rope power set and opening and closing rope power set；
Support rope power set and support that rope reel is in transmission connection, support that the upper end of rope is fixed on support rope reel, under
Hold be connected fixing with grab bucket；
Opening and closing rope power set are in transmission connection with opening and closing rope reel, and the upper end of opening and closing rope is fixed on opening and closing rope reel, under
Hold to coordinate with grab bucket and fix；
Bulk goods door machine grab bucket crawl amount real-time control system also includes supporting rope locking mechanism, supports that rope locking mechanism is fixed
Supporting between rope reel and grab bucket, and coordinating installation with supporting to restrict.
Bulk goods door machine grab bucket crawl amount real-time control system also includes gravity sensor, and gravity sensor is fixed on grab bucket
On bottom surface, and it is connected with PLC signal.
Bulk goods door machine grab bucket crawl amount real-time control system also includes that display, display are connected with PLC signal.
Bulk goods door machine grab bucket crawl amount real-time control system also includes range sensor, and range sensor is fixed on grab bucket
Bottom, and be connected with PLC signal.
Range sensor has multiple, and the plurality of range sensor is arranged in string in the bottom of grab bucket.
Support that rope power set include supporting rope converter, supporting rope motor and support rope reductor, support rope converter
With support rope motor electrically connect, support rope motor with support rope reductor electrically connect, support rope reductor and support rope reel biography
It is dynamically connected.
Opening and closing rope power set include opening and closing rope converter, opening and closing rope motor and opening and closing rope reductor, opening and closing rope converter
Electrically connecting with opening and closing rope motor, opening and closing rope motor electrically connects with opening and closing rope reductor, and opening and closing rope reductor passes with opening and closing rope reel
It is dynamically connected.
The crawl amount of port and pier bulk goods door machine substantially remains in 40t, and over loading delivery can produce infringement by opposite house machine self,
It is unfavorable for man-machine safety, the driver that operation level is higher, need energy high concentration, it is achieved bulk goods door machine grab bucket weight accurate
Control, increase the labor intensity of driver.
As a example by general bulk goods door machine, the operation that grab bucket captures goods Shi Ge mechanism is as follows:
(1) grab bucket is opened: opening and closing rope declines at full speed, and supporting mechanism is motionless, and grab bucket is opened.
(2) grab bucket drops to stack: when stack is down in grab bucket, and opening and closing, supporting mechanism stop, and now support rope and opening and closing rope
4 rope all in relaxed state.
(3) grab bucket Guan Bi: during grab bucket Guan Bi (starting to capture goods), opening and closing rope closes bucket at full speed, supports rope output constant force
Square (this moment is non-adjustable, it is therefore an objective to holding rope will not be the most loose, and overall weight substantially or is undertaken by opening and closing rope).Grab bucket is closed
After conjunction, opening and closing support rope rises together.
Analyzing said process, grab bucket when capturing goods (during grab bucket Guan Bi), electrical system can be by changing each mechanism
Operation, reach control crawl amount purpose.
The present invention has mainly made the improvement in terms of three below in terms of control:
(1) decline until during stack, make to grab bucket and support 4 of rope and opening and closing rope when being down to stack every time in grab bucket
The degree of tightness state of steel wire rope is essentially the same, namely guarantees to grab bucket when starting to capture goods every time, and its initial state is substantially all
It is identical.Reason is: during door machine operation, and when stack is down in grab bucket every time, the degree of tightness state of 4 steel wire ropes is with front
The most different, when which results in every time grab bucket crawl goods, initial state is the most different, even if follow-up control mode phase
With, crawl amount also differs.
(2) when grab bucket starts to close (starting to capture goods), opening and closing rope closes bucket at full speed, changes and supports rope output torque, with
Shi Zengjia supports rope output torque, and that reduces grab bucket takes the degree of depth, thus reduce the crawl amount of grab bucket.
(3) when grab bucket is closed into a certain degree, control to support electromotor brake action, i.e. support that rope locking mechanism will prop up
Hold rope locking, support that rope moment no longer changes, until grab bucket is of completely closed.Effect is to ensure to grab bucket from supporting brake every time
Braking starts to of completely closed process substantially identical, reduces the error of each crawl amount.
The present invention provides analog input interface by installing a terminal block in PLC additional, utilizes door machine driver
The reserved place of room joint action table, installs a current potential adjusting knob additional to export analog quantity, by current potential adjusting knob to PLC
The size adjustment support rope output torque of output electric potential signal, scope is 0%～40%.
The work process of the present invention is:
(1) grab bucket is opened: opening and closing rope declines at full speed, and supporting mechanism is motionless, and grab bucket is opened.
(2) grab bucket drops to stack: when grab bucket is with certain speed uniform descent a period of time, by converter output electricity
Stream detection power set output torque or the distance by range sensor monitoring grab bucket lower end to stack upper end, when arriving one
When determining moment or certain distance, PLC controls power set automatic retarding until stop ensureing that goods is down in grab bucket every time
During buttress, support that the degree of tightness state of rope and opening and closing rope is essentially the same.In actual job, the position that grab bucket captures every time is on ship
Commander's hands determines.In this process, position it is frequently necessary to adjust, and causes grabbing bucket and often slows down or accelerate, falls at goods every time
Speed on buttress is the most different.In this case so that when controlling power set automatic retarding until stopping by system, every time
The degree of tightness state of 4 steel wire ropes is the most different.So as ensureing that each speed grabbing bucket in stack is all, it is necessary to detection
Whether grab bucket is a period of time with certain speed uniform descent, the most then system is run, if it is not, then this time grasping system
Do not run.
(3) grab bucket Guan Bi: during grab bucket Guan Bi (starting to capture goods), opening and closing rope closes bucket at full speed, supports that rope is according to drivers' cab
Current potential adjusting knob on joint action table output torque is set.The setting of knob be driver according to the proportion of goods, oneself
Operating habit and operation process constantly adjust.Such as, when opening and closing bucket phenomenon again occur, driver can regulate rotation
Button increases supports rope output torque, and that reduces grab bucket takes the degree of depth, thus reduce the crawl amount of grab bucket.Vice versa.Work as grab bucket
When being closed into a certain degree, controlling to support rope locking mechanism action, steel wire rope is supported in braking until grab bucket is of completely closed.This step
The signal of rapid mainly sense weight sensor, when arriving certain weight, supports that rope locking mechanism automatically begins to braking.Grab
After bucket Guan Bi, opening and closing support rope rises together.
Comparing the grab bucket of traditional different choice difference bucket capacity according to goods class proportion, the present invention can reduce deposit grab bucket
Kind and quantity, it is achieved only utilize the grab bucket of a kind of bucket capacity to meet the needs of operation difference goods class, reduce adopting of grab bucket
The cost purchase, store, keep in repair, managed, also eliminates part dangerous matter sources simultaneously, reduces security risk；
Compare and currently rely primarily on the individual skill of driver and operating experience controls the crawl amount of grab bucket, the fortune of the present invention
Row can reduce opposite house machine driver skill and the requirement of experience, and this project can assist different drivers all with same standard
Mode operation, operation level relatively low driver working performance under auxiliary substantially can meet or exceed average operation effect
Rate；
The present invention is simple to operate, and conversion is convenient, and when certain goods of operation, different job positions or stage are to grab bucket bucket
The requirement held is the most different, as changed grab bucket in operation process and then needing stevedore to dismount, forklift transport etc., with about
Time 10 minutes, and utilize this mode to control crawl amount and only need driver's rotating switch, improve working performance equally.
The present invention also a saving the research and development of different bucket capacity grab bucket, manufactures, manages cost simultaneously.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. a bulk goods door machine grab bucket crawl amount real-time control system, it is characterised in that: include the regulation rotation of PLC, current potential
Button, power set, support rope reel, opening and closing rope reel, support rope, opening and closing rope and grab bucket；
Described PLC is connected with described current potential adjusting knob and power set signal respectively, and described PLC receives institute
State the electric potential signal of current potential adjusting knob, after this electric potential signal is analyzed and processed, according to the size motivation of adjustment of this electric potential signal
The moment output size of device；
Described power set include supporting rope power set and opening and closing rope power set；
Described support rope power set are in transmission connection with described support rope reel, and the described upper end supporting rope is fixed on described support
On rope reel, lower end is fixing with described grab bucket to be connected；
Described opening and closing rope power set are in transmission connection with described opening and closing rope reel, and the upper end of described opening and closing rope is fixed on described opening and closing
On rope reel, lower end coordinates fixing with described grab bucket.
Bulk goods door machine the most according to claim 1 grab bucket crawl amount real-time control system, it is characterised in that: also include supporting
Rope locking mechanism, described support rope locking mechanism is fixed between described support rope reel and grab bucket, and joins with described support rope
Close and install.
Bulk goods door machine the most according to claim 1 grab bucket crawl amount real-time control system, it is characterised in that: also include gravity
Sensor, described gravity sensor is fixed on the bottom surface of described grab bucket, and is connected with described PLC signal.
Bulk goods door machine the most according to claim 1 grab bucket crawl amount real-time control system, it is characterised in that: also include display
Device, described display is connected with described PLC signal.
Bulk goods door machine the most according to claim 1 grab bucket crawl amount real-time control system, it is characterised in that: also include distance
Sensor, described range sensor is fixed on the bottom of described grab bucket, and is connected with described PLC signal.
6. bulk goods door machine of based on any one in claim 1 to claim 5 grab bucket crawl amount real-time control system
Bulk goods door machine grab bucket crawl amount real-time control method, it is characterised in that: comprise the following steps,
(1) PLC exports control signal to power set, and power set drive grab bucket uniform descent to L height；
(2) PLC exports control signal to power set, and power set drive grab bucket to slow down decline until stopping；
(3) PLC exports control signal to opening and closing rope power set, and opening and closing rope power set drive grab bucket Guan Bi at full speed,
PLC is to supporting power set output control signal of restricting simultaneously, supports that rope power set adjust output torque, and drive is grabbed
Bucket adjusts and captures the degree of depth；
(4) PLC exports control signal to power set, and power set drive grab bucket to rise.
Bulk goods door machine the most according to claim 6 grab bucket crawl amount real-time control method, it is characterised in that: described step
(1) L in is highly determined to the output torque information that PLC is fed back by motor or is passed by the distance of grab bucket lower end
Sensor measurement to grab bucket lower end determine to the range information of stack upper end.
Bulk goods door machine the most according to claim 6 grab bucket crawl amount real-time control method, it is characterised in that: described step
(3) the support rope power set in adjust output torque for supporting that rope power set increase output torque.
Bulk goods door machine the most according to claim 8 grab bucket crawl amount real-time control method, it is characterised in that: described step
(3) support rope power set in increase output torque and control by current potential adjusting knob, current potential adjusting knob by rotation to
PLC output different potentials signal, PLC is calculated by the electric potential signal of current potential adjusting knob supports that rope power fills
Put the moment parameter that should increase, and to supporting that rope power set output torque increases instruction and moment increase parameter.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108792954A (en) * | 2018-07-30 | 2018-11-13 | 唐山曹妃甸实业港务有限公司 | Bridge type ship unloader captures amount control method |
| CN111854915A (en) * | 2020-07-24 | 2020-10-30 | 曹妃甸港矿石码头股份有限公司 | Calibration method for lifting weight sensor of ship unloader |
| CN112904808A (en) * | 2021-01-14 | 2021-06-04 | 连云港东粮码头有限公司 | Control system integrating grain bulk operation and unloading process of gantry crane |
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| CN111854915A (en) * | 2020-07-24 | 2020-10-30 | 曹妃甸港矿石码头股份有限公司 | Calibration method for lifting weight sensor of ship unloader |
| CN112904808A (en) * | 2021-01-14 | 2021-06-04 | 连云港东粮码头有限公司 | Control system integrating grain bulk operation and unloading process of gantry crane |
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