CN201553552U - Grab control automatic operation compensator - Google Patents
Grab control automatic operation compensator Download PDFInfo
- Publication number
- CN201553552U CN201553552U CN2009202591316U CN200920259131U CN201553552U CN 201553552 U CN201553552 U CN 201553552U CN 2009202591316 U CN2009202591316 U CN 2009202591316U CN 200920259131 U CN200920259131 U CN 200920259131U CN 201553552 U CN201553552 U CN 201553552U
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- Prior art keywords
- grab
- grab bucket
- control
- plc
- compensator
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- Expired - Fee Related
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Abstract
The utility model relates to a grab control automatic operation compensator mainly comprising a PLC controller, a light-limit controller for the weight of a grab and an intermediate relay for controlling; and a winding drum bearing seat for opening and closing the grab is provided with a pressure sensor of the light-limit controller. The grab control automatic operation compensator is characterized in that: the PLC controller, the light-limit controller for the weight of the grab and the intermediate relay are arranged together to form an automatic control compensating circuit, and linked with the control circuit of the original four-rope grab mechanism control device together again. The grab control automatic operation compensator uses the devices such as the PLC controller, the light-limit controller for the weight of the grab, the intermediate relay and the like, automatically controls the original four-rope grab mechanism control device by programming to automatically control the opening and closing time of the grab to be consistent, and protects the average force of two groups of steel wire ropes, thus being incapable of causing individual bearing force of the single group of the steel wire ropes to be broken due to the tiring, damaging and overloading, and avoiding the damage as the single force applying of an electric motor leads mechanical equipment and electrical elements to be impacted.
Description
Technical field:
The utility model relates to a kind of grab bucket control operation compensator corollary apparatus automatically, but the driving driver operation is by this device automatic guidance, also can manually control use alternate with each other not perturbation operation control grab bucket mutually separately.
Background technology:
Two master controllers that present widely used four rope grab mechanism controls device generally adopts are controlled lifting respectively, are opened and closed two motors.Its main shortcoming is that the running speed after two motors slows down generally is 42 meters/1 minute, measuring and calculating per second running speed is 0.7 meter/1 second, when the closed rising of full coal tar is grabbed in grab bucket, row hang the driver operation technology more skilled, reaction speed faster operating control handle that boom hoist cable is risen is always slow more than half second, and cause boom hoist cable time time pine more than 0.35 meter.Just occur that lifting wire rope is lax not to stress, and it is stressed separately and open and close electrical motor and exert oneself separately to open and close steel rope, stressed lifting wire rope breaks because of overload.And because discontinuity, mechanical equipment and electric elements all are subjected to impact failure easily.Stressed evenly the frequent crawl operation adjustment of driver carries out control operation sometimes in the bad situation of visual dead angles in order to guarantee, and controlling bad meeting, to make steel wire rope hang over grab bucket upper and hang up or steel wire rope is twisted and twist-off.
Summary of the invention:
The utility model purpose is to provide a kind of grab bucket automatic operation compensator; quasi-solution is determined grab bucket when grabbing the complete closure of full with substance; lifting motor can in time automatically start, make lifting wire rope and open and close steel wire rope and rise simultaneously; protection lifting and open and close two groups of steel wire rope average force and can not cause any one group of independent holding capacity of steel wire rope and tired impaired overload and breaking, and avoid motor to exert oneself separately plant equipment and electrical equipment are impacted and cause easily damage.
The technical solution of the utility model is: a kind of grab control automatic operation compensator, mainly comprise: PLC controller, grab bucket weight are limit light controller, control auxiliary reclay, the bearing block of the reel that opens and closes in grab bucket is installed the pressure sensor of a light controller of limit, it is characterized in that: PLC controller, grab bucket weight limit light controller, auxiliary reclay to be installed together the automatic control and compensation circuit of composition, are bound up with original four rope grab mechanism controls device control circuit again.
Described grab bucket automatic compensator is as follows with being connected of former four rope grab mechanism controls device electric control circuit: the `X011 in the former control PLC 1 of OCH00 (282) access is opened in the grab bucket in the grab bucket automatic compensator PLC2 input; The X012 in the former control PLC 1 of OCH01 (283) access is closed in grab bucket in the grab bucket automatic compensator PLC2 input; The grab bucket of going in the grab bucket automatic compensator PLC2 output promotes the coil of 1000 (101) access auxiliary reclays, and the normal opened contact of auxiliary reclay inserts the X001 in the former control PLC 1; The grab bucket lower 1002 (105) of going in the grab bucket automatic compensator PLC2 output inserts the coil of auxiliary reclay, and the normal opened contact of auxiliary reclay inserts the X002 in the former control PLC 1; The light controller power source of grab bucket limit inserts primary circuit 220V power supply, limits the normal opened contact of light controller to be connected in series that grab bucket in the former control PLC 1 descends (183) and (283) loop is opened in grab bucket.
Moment when the full with substance closure is grabbed in operation control, lifting motor rises simultaneously automatically together by programming and at once automatically operation of delayed startup control, lifting and the switching steel wire rope of automatic operation compensator.When operation control grab bucket feeds intake when opening fully, the programming by automatic operation compensator and delayed startup control can move not only lifting motor at once automatically again, two groups of steel ropes descend simultaneously but also automatically together.When grab bucket drops on the material, weight will be lower than the deadweight of grab bucket, by the automatically control of operation compensator, grab bucket be descended stop automatically when landing fully behind the pressure sensor received signal, unlikelyly like this make two groups of steel ropes loose excessively.Protect two groups of steel wire rope average force and can not cause single group independent holding capacity of steel wire rope and tired impaired overload and breaking, and avoid motor to exert oneself separately plant equipment and electrical equipment are impacted and cause easily damage.
Description of drawings:
Fig. 1 is automatic operating control procedure figure;
Fig. 2 is the terminal connection diagram of PLC1;
Fig. 3 is the card arrangement plan of PLC2 and compensating device.
The specific embodiment:
At automatic operating control procedure shown in Fig. 1, when manual control handle is opened the grab bucket discharging, open frequency converter 3 and open and close motor 6 operations, the grab bucket action is opened, operation compensator 1 operation automatically of control simultaneously, 5 operations of delayed startup decline frequency converter, lifting motor 7 operations when grab bucket is opened fully, two groups of steel ropes be automatic lowering together simultaneously.When grab bucket descend weighing less than the grab bucket deadweight when landing fully after, two groups of steel wire ropes stopped simultaneously action and no longer continue to descend after pressure sensor was delivered to signal the light controller of limit, control and opens and closes motor 6 and lifting motor 7 and stop simultaneously, make grab bucket to drop on the material.When the closed grab bucket of manual joystick material grasping, closed frequency converter 2 and open and close motor 6 operations, the grab bucket action is closed controls simultaneously that automatic operation compensator 1 operation, delayed startup promote frequency converter 4 operations, lifting motor 7 operations when grab bucket is fully closed, two groups of steel wire ropes automatic-ascending together simultaneously.
PLC in Fig. 2 and Fig. 3 (2) control 1, when the driver opens grab bucket, the LKZ1 closure, X011 connects among the PLC (1), grab bucket begins to open, the OCH00 of PLC (2) input simultaneously connects to PLC internal timer relay charged, make PLC (2) 1002 that output be arranged through time-delay (time can be determined by on-site actual situations), 1002 and COM between an intermediate relay KA3 is housed, the charged adhesive of intermediate relay KA3, the contact of KA3 is attempted by on LKS2 (X002) signal of control grab bucket decline, after the charged adhesive of KA1, the closed X002 point of connecting on the PLC (1) of contact KA1, PLC (1) control descends grab bucket, and at this moment Zhua Dou four steel ropes move together.In the time of on dropping to material, the weight of grab bucket will be lower than the deadweight of grab bucket, the controller action that this time limit is light, its normally closed contact KA will disconnect, this node serial connection is opened among PLC (1) X011 and the grab bucket decline X002 with grab bucket, the KA contact disconnects the back and disconnects X002 and X011, and grab bucket will stop the action that to descend and open.This control process finishes.
PLC (2) control 2, when the driver begins to grab material, only need the closed joystick of operation control grab bucket, the LKZ2 closure, PLC (2) input OCH01 connects, the internal timer relay picks up counting, make PLC (2) 1000 that output be arranged through time-delay (time can be determined by on-site actual situations), 1000 and COM between an intermediate relay KA1 is housed, the charged adhesive of intermediate relay KA1, the contact of KA1 is attempted by on LKS2 (X001) signal that control grab bucket descends, after the charged adhesive of KA1, the closed X001 point of connecting on the PLC (1) of contact KA1, PLC (1) control is risen grab bucket automatically, and at this moment Zhua Dou four steel ropes move together.After material risen to required height, driver's closed joystick that only need manually stop to grab bucket just can stop the grab bucket lifting, at this moment material can be unloaded to get final product.This control process finishes.
Claims (2)
1. grab control automatic operation compensator, mainly comprise: PLC controller, grab bucket weight are limit light controller, control auxiliary reclay, in the spool shaft bearing that grab bucket opens and closes a pressure sensor of limitting light controller is installed, it is characterized in that: PLC controller, grab bucket weight limit light controller, auxiliary reclay to be installed together the automatic control and compensation circuit of composition, are bound up with original four rope grab mechanism controls device control circuit again.
2. grab control automatic operation compensator according to claim 1 is characterized in that: the grab bucket automatic compensator is as follows with being connected of former four rope grab mechanism controls device electric control circuit: the X011 in the former control PLC 1 of OCH00 (282) access is opened in the grab bucket in the grab bucket automatic compensator PLC2 input; The X012 in the former control PLC 1 of OCH01 (283) access is closed in grab bucket in the grab bucket automatic compensator PLC2 input; The grab bucket of going in the grab bucket automatic compensator PLC2 output promotes the coil of 1000 (101) access auxiliary reclays, and the normal opened contact of auxiliary reclay inserts the X001 in the former control PLC 1; The grab bucket lower 1002 (105) of going in the grab bucket automatic compensator PLC2 output inserts the coil of auxiliary reclay, and the normal opened contact of auxiliary reclay inserts the X002 in the former control PLC 1; The light controller power source of grab bucket limit inserts primary circuit 220V power supply, limits the normal opened contact of light controller to be connected in series that grab bucket in the former control PLC 1 descends (183) and (283) loop is opened in grab bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202591316U CN201553552U (en) | 2009-10-29 | 2009-10-29 | Grab control automatic operation compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202591316U CN201553552U (en) | 2009-10-29 | 2009-10-29 | Grab control automatic operation compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553552U true CN201553552U (en) | 2010-08-18 |
Family
ID=42613225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202591316U Expired - Fee Related CN201553552U (en) | 2009-10-29 | 2009-10-29 | Grab control automatic operation compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553552U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454962A (en) * | 2013-08-20 | 2013-12-18 | 中交广州航道局有限公司 | Grab bucket numerical control system and method |
| CN105253776A (en) * | 2015-11-25 | 2016-01-20 | 北京金自天正智能控制股份有限公司 | Semi-automatic control method of gantry crane |
-
2009
- 2009-10-29 CN CN2009202591316U patent/CN201553552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454962A (en) * | 2013-08-20 | 2013-12-18 | 中交广州航道局有限公司 | Grab bucket numerical control system and method |
| CN105253776A (en) * | 2015-11-25 | 2016-01-20 | 北京金自天正智能控制股份有限公司 | Semi-automatic control method of gantry crane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20131029 |