CN201439484U - Pitching safety control device for main arm of shore bridge - Google Patents
Pitching safety control device for main arm of shore bridge Download PDFInfo
- Publication number
- CN201439484U CN201439484U CN2009200157638U CN200920015763U CN201439484U CN 201439484 U CN201439484 U CN 201439484U CN 2009200157638 U CN2009200157638 U CN 2009200157638U CN 200920015763 U CN200920015763 U CN 200920015763U CN 201439484 U CN201439484 U CN 201439484U
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- safety control
- slack rope
- limiting device
- pitching
- bank bridge
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Abstract
The utility model discloses a pitching safety control device for a main arm of a shore bridge, belonging to the technical field of a port crane. The pitching safety control device for the main arm of the shore bridge comprises a pitching steel rope (1), a slack rope limiting stopper (2), a hook entering limiting stopper (3), a slack rope contact mechanism (4), a counter weight iron (5), a high-speed brake (6), a low-speed brake (7), a steel rope drum (8), a speed reducer (9), an AC electric motor (10), a transducer (11) and a programmable logic controller (12). Compared with the prior art, the potential safety hazard existing in the pitching of the shore bridge in the prior art can be overcome; in addition, the pitching safety control device has the advantages of good safety and reliability, compact structure, sensitive response, good practicability and reliability and the like.
Description
Technical field
The invention belongs to the portal crane technical field, more particularly belong to a kind of bank bridge principal arm pitching safety control.
Background technology
The development at harbour is very rapid in recent years, the operating efficiency of harbor accommodation all is significantly increased, but the safety of harbor accommodation also can not be ignored, and this year, the serious accident that a few longshore bridge luffing mechanisms cause took place in the scope of harbour, the world, had caused the loss and the disadvantageous social influence of property.This all is because the luffing mechanism steel rope is too lax, and it is incomplete to advance hook, causes big arm moment to be fallen and rolls over the steel structure of ruining bank bridge complete machine.Though this class accident seldom takes place, in case take place to cause a lot of negative effects and loss.
Luffing mechanism is one of important physical construction component part of bank bridge at present, the pitching steel rope often appears in DCT harbour bank bridge when carrying out the work of luffing mechanism too lax, even the pitching steel rope occurs and go out the drum grooves phenomenon, it is not in place or have only side hook often to occur hook when the hook action of carrying out luffing mechanism.
The production time that this phenomenon not only delays equipment influences the operating efficiency of equipment, but also has great potential safety hazard.The big arm folding that the luffing mechanism of several longshore bridges has taken place in the scope of harbour, the world is in recent years ruined the grave accident of falling, for example: the silver dollar harbour of Korea S, Britain Southampton harbour, this type of accident belongs to grave accident, the generation of this type of accident can cause bank bridge steel structure badly damaged, cause the bank bridge to be scrapped, return harbour and caused great property damage, and the harbour image is caused negative influence.
Summary of the invention
The present invention has proposed a kind of bank bridge mechanism pitching safety control for solving above technical matters.
A kind of bank bridge principal arm pitching safety control of the present invention comprises pitching steel rope, slack rope limiting device, advances the hook limiting device, slack rope contact mechanism, counterweight iron block, mechanical lever, high-speed brake, low brake, cable drum, retarder, alternating-current motor/AC motor, frequency converter, Programmable Logic Controller, and wherein: described slack rope limiting device is installed in the upper end of the ladder frame of bank bridge; One end of described slack rope contact mechanism connects the counterweight iron block, and the other end is near the pitching steel rope; Be connected by a movable rod between described slack rope contact mechanism and the slack rope limiting device; Describedly advance the side that the hook limiting device is installed in the slack rope limiting device; Described alternating-current motor/AC motor links to each other with cable drum by retarder.
Link to each other by bus between described slack rope limiting device and the Programmable Logic Controller.Link to each other by bus between described Programmable Logic Controller and the frequency converter.The power input of described alternating-current motor/AC motor is equipped with frequency converter.Link to each other by bus between the master cock of described Programmable Logic Controller and low brake; Described low brake is installed in the side edge of cable drum.Link to each other by bus between the master cock of described Programmable Logic Controller and high-speed brake.Described high-speed brake is installed on the torque output shaft of alternating-current motor/AC motor.
One end of slack rope contact mechanism of the present invention and the rocking arm direct contact of slack rope limiting device make the normal battle of slack rope limiting device closed, and the other end of slack rope contact mechanism has the counterweight iron block.When steel rope did not contact this slack rope contact mechanism, the normal battle was closed.Will contact the mechanical lever with spacing rocking arm one side when the pitching steel rope is lax, this lever drives rocking arm and moves together, and disconnected closed normal battle, and this has just reached the effect of rope creep protection.Normal battle of slack rope limiting device is after the closure, this closure signal passes to Programmable Logic Controller by bus, Programmable Logic Controller is by total line control high-speed brake and low brake, high-speed brake is directly locked the torque output shaft of alternating-current motor/AC motor, simultaneously the direct locking steel wire rope reel of low brake.Programmable Logic Controller is given plugging moment of alternating-current motor/AC motor by frequency converter.
The present invention compares with prior art, has overcome the hidden danger that bank bridge principal arm pitching safety performance exists in the prior art; Advantages such as having safe and reliable, compact conformation, be quick on the draw, be practical reliable.
Description of drawings
Accompanying drawing 1 is the integral structure scheme drawing of bank bridge of the present invention;
Accompanying drawing 2 is structured flowcharts of bank bridge principal arm pitching safety control of the present invention.
The specific embodiment
Bank bridge principal arm pitching safety control of the present invention is after having analyzed aspect the bank bridge luffing mechanism fault, through what carry out repeatedly putting forward after the pitching operation.In the slack rope process of luffing mechanism; the too lax probability that occurs of steel rope is still than higher; according to the steel rope canoe of luffing mechanism, selected the protection of the slack rope of pitching steel rope place interpolation on the ladder frame of bank bridge spacing, reached the effect of rope creep protection.
A kind of preferred implementation one: a kind of bank bridge principal arm pitching safety control comprises pitching steel rope 1, slack rope limiting device 2, advances hook limiting device 3, slack rope contact mechanism 4, counterweight iron block 5, high-speed brake 6, low brake 7, cable drum 8, retarder 9, alternating-current motor/AC motor 10, frequency converter 11, Programmable Logic Controller 12, and wherein: described slack rope limiting device 2 is installed in the upper end of the ladder frame of bank bridge; One end of described slack rope contact mechanism 4 connects counterweight iron block 5, and the other end is near pitching steel rope 1; Be connected by a movable rod between described slack rope contact mechanism 4 and the slack rope limiting device 2; Describedly advance the side that hook limiting device 3 is installed in slack rope limiting device 2; Described alternating-current motor/AC motor 10 links to each other with cable drum 8 by retarder 9.
Link to each other by bus between described slack rope limiting device 2 and the Programmable Logic Controller 12.Link to each other by bus between described Programmable Logic Controller 12 and the frequency converter 11.The power input of described alternating-current motor/AC motor 10 is equipped with frequency converter 11.One end of slack rope contact mechanism 4 of the present invention and the rocking arm direct contact of slack rope limiting device 2 make the normal battle of slack rope limiting device 2 closed, and the other end of slack rope contact mechanism 4 has the counterweight iron block.When steel rope 1 did not contact this slack rope contact mechanism 4, the normal battle was closed.When relaxing, pitching steel rope 1 will contact the mechanical lever of slack rope contact mechanism 4 one sides; this lever drives rocking arm and moves together; disconnected closed normal battle; Programmable Logic Controller 12 is given 10 1 plugging moments of alternating-current motor/AC motor by frequency converter 11, and this has just reached the effect of rope creep protection.
A kind of preferred implementation two: a kind of bank bridge principal arm pitching safety control comprises pitching steel rope 1, slack rope limiting device 2, advances hook limiting device 3, slack rope contact mechanism 4, counterweight iron block 5, mechanical lever 6, high-speed brake 6, low brake 7, cable drum 8, retarder 9, alternating-current motor/AC motor 10, frequency converter 11, Programmable Logic Controller 12, and wherein: described slack rope limiting device 2 is installed in the upper end of the ladder frame of bank bridge; One end of described slack rope contact mechanism 4 connects counterweight iron block 5, and the other end is near pitching steel rope 1; Be connected by a movable rod between described slack rope contact mechanism 4 and the slack rope limiting device 2; Describedly advance the side that hook limiting device 3 is installed in slack rope limiting device 2; Described alternating-current motor/AC motor 10 links to each other with cable drum 8 by retarder 9.
Link to each other by bus between the master cock of described Programmable Logic Controller 12 and low brake 7; Described low brake 7 is installed in the side edge of cable drum 8.One end of slack rope contact mechanism 4 of the present invention and the rocking arm direct contact of slack rope limiting device 2 make the normal battle of slack rope limiting device 2 closed, and the other end of slack rope contact mechanism 4 has the counterweight iron block.When steel rope 1 did not contact this slack rope contact mechanism 4, the normal battle was closed.When relaxing, pitching steel rope 1 will contact the mechanical lever of slack rope contact mechanism 4 one sides; this lever drives rocking arm and moves together; disconnected closed normal battle; Programmable Logic Controller 12 is given 10 1 plugging moments of alternating-current motor/AC motor by frequency converter 11, and this has just reached the effect of rope creep protection.Normal battle of slack rope limiting device 2, this closure signal passed to Programmable Logic Controller 12 by bus after the closure, and Programmable Logic Controller 12 is by total line control high-speed brake 6, and high-speed brake 6 is directly locked the torque output shaft of alternating-current motor/AC motor 10.
A kind of preferred implementation three: a kind of bank bridge principal arm pitching safety control comprises pitching steel rope 1, slack rope limiting device 2, advances hook limiting device 3, slack rope contact mechanism 4, counterweight iron block 5, mechanical lever 6, high-speed brake 6, low brake 7, cable drum 8, retarder 9, alternating-current motor/AC motor 10, frequency converter 11, Programmable Logic Controller 12, and wherein: described slack rope limiting device 2 is installed in the upper end of the ladder frame of bank bridge; One end of described slack rope contact mechanism 4 connects counterweight iron block 5, and the other end is near pitching steel rope 1; Be connected by a movable rod between described slack rope contact mechanism 4 and the slack rope limiting device 2; Describedly advance the side that hook limiting device 3 is installed in slack rope limiting device 2; Described alternating-current motor/AC motor 10 links to each other with cable drum 8 by retarder 9.
Link to each other by bus between the master cock of described Programmable Logic Controller 12 and high-speed brake 6.Described high-speed brake 6 is installed on the torque output shaft of alternating-current motor/AC motor 10.Normal battle of slack rope limiting device 2, this closure signal passed to Programmable Logic Controller 12 by bus after the closure, and Programmable Logic Controller 12 is by total line control low brake 7, the direct locking steel wire rope reel 8 of low brake.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (8)
1. bank bridge principal arm pitching safety control, it is characterized in that: described device comprises pitching steel rope (1), slack rope limiting device (2), advances hook limiting device (3), slack rope contact mechanism (4), counterweight iron block (5), high-speed brake (6), low brake (7), cable drum (8), retarder (9), alternating-current motor/AC motor (10), frequency converter (11), Programmable Logic Controller (12), wherein:
Described slack rope limiting device (2) is installed in the upper end of the ladder frame of bank bridge;
One end of described slack rope contact mechanism (4) connects counterweight iron block (5), and the other end is near pitching steel rope (1); Be connected by a movable rod between described slack rope contact mechanism (4) and the slack rope limiting device (2);
Describedly advance the side that hook limiting device (3) is installed in slack rope limiting device (2);
Described alternating-current motor/AC motor (10) links to each other with cable drum (8) by retarder (9).
2. bank bridge principal arm pitching safety control according to claim 1 is characterized in that: link to each other by bus between described slack rope limiting device (2) and the Programmable Logic Controller (12).
3. bank bridge principal arm pitching safety control according to claim 1 is characterized in that: link to each other by bus between described Programmable Logic Controller (12) and the frequency converter (11).
4. bank bridge principal arm pitching safety control according to claim 1, it is characterized in that: the power input of described alternating-current motor/AC motor (10) is equipped with frequency converter (11).
5. according to described any one bank bridge principal arm pitching safety control of claim 1-4, it is characterized in that: link to each other by bus between the master cock of described Programmable Logic Controller (12) and low brake (7).
6. according to described any one bank bridge principal arm pitching safety control of claim 1-4, it is characterized in that: described low brake (7) is installed in the side edge of cable drum (8).
7. according to described any one bank bridge principal arm pitching safety control of claim 1-4, it is characterized in that: link to each other by bus between the master cock of described Programmable Logic Controller (12) and high-speed brake (6).
8. according to described any one bank bridge principal arm pitching safety control of claim 1-4, it is characterized in that: described high-speed brake (6) is installed on the torque output shaft of alternating-current motor/AC motor (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200157638U CN201439484U (en) | 2009-07-23 | 2009-07-23 | Pitching safety control device for main arm of shore bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200157638U CN201439484U (en) | 2009-07-23 | 2009-07-23 | Pitching safety control device for main arm of shore bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201439484U true CN201439484U (en) | 2010-04-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200157638U Expired - Lifetime CN201439484U (en) | 2009-07-23 | 2009-07-23 | Pitching safety control device for main arm of shore bridge |
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|---|---|
| CN (1) | CN201439484U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920855A (en) * | 2010-08-06 | 2010-12-22 | 中国神华能源股份有限公司 | Method for preventing ship loader wire rope from loosening and control device |
| CN104444413A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Electric automation improvement for tail car pitching mechanism of bucket wheel machine |
| CN105398951A (en) * | 2015-12-24 | 2016-03-16 | 三一海洋重工有限公司 | Light small shore bridge |
-
2009
- 2009-07-23 CN CN2009200157638U patent/CN201439484U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920855A (en) * | 2010-08-06 | 2010-12-22 | 中国神华能源股份有限公司 | Method for preventing ship loader wire rope from loosening and control device |
| CN101920855B (en) * | 2010-08-06 | 2012-09-05 | 中国神华能源股份有限公司 | Method for preventing ship loader wire rope from loosening and control device |
| CN104444413A (en) * | 2014-11-11 | 2015-03-25 | 宁夏嘉翔自控技术有限公司 | Electric automation improvement for tail car pitching mechanism of bucket wheel machine |
| CN105398951A (en) * | 2015-12-24 | 2016-03-16 | 三一海洋重工有限公司 | Light small shore bridge |
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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: 20100421 |