CN103711161B - Electrical drive grab dredger - Google Patents
Electrical drive grab dredger Download PDFInfo
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- CN103711161B CN103711161B CN201410010330.9A CN201410010330A CN103711161B CN 103711161 B CN103711161 B CN 103711161B CN 201410010330 A CN201410010330 A CN 201410010330A CN 103711161 B CN103711161 B CN 103711161B
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Abstract
The invention relates to the irrigation work construction industry, in particular to an electric drive grab dredger which comprises a ship body and a grapple dredger. The volume of a bucket of the grapple dredger is 18m3. The grapple dredger is composed of an arm frame, a propeller strut, a rotating table, a rotary support and a foundation support and is provided with a hoisting mechanism, an opening-closing mechanism, an amplitude variation mechanism and a rotary mechanism. A driving device is composed of a variable frequency motor, a reducer and a hydraulic brake. All the parts are driven electrically. A generator unit in an auxiliary cabin on the ship body is used for supplying power. The hoisting mechanism and the opening-closing mechanism are realized through the motion of a control mechanism motor and the motion of a brake hydraulic cylinder. The hydraulic cylinder is controlled by a solenoid valve to move. An alternating-current, frequency-changing and speed-adjusting control system is adopted to realize stepless speed adjustments, stable start and strong overload capacity. A force measuring device for the dredger is researched and developed independently. The electric drive grab dredger is high in control precision, flexible to operate, simple to maintain, safe, reliable, and capable of being accepted by domestic construction enterprises, and fills up the blank of domestic large full-electric, frequency-changing and speed-adjusting grab dredger with volume larger than 10m3.
Description
Technical field
The present invention relates to water conservancy project construction industry, particularly a kind of Electric Drive grab boat.
Background technology
The grab boat being active at present in water conservancy project construction industry mainly contains following several pattern:
1, second-hand grab boat.Now this batch facility aging, fault rate is many.
2, mechanically operated grab boat.This part equipment generally adopts marine diesel to pass through line shaft and directly drives each operating mechanism.This pattern is overload-resistant and resistance to impact is poor, therefore in being generally suitable for, small-power transmission.
3, newly make large-scale grab boat 10m
3above, generally adopt hydraulic drive form.This form, arrangement of mechanism is complicated, and key technology is abroad monopolized.
Along with alternating frequency conversion technique, the particularly development of powerful alternating frequency conversion technique, the extensive use of PLC frequency conversion control technique, makes electrically-driven control accuracy and sensitivity considerably beyond hydraulic drive.
Summary of the invention
The invention provides a kind of Electric Drive grab boat, bucket capacity 18m
3, can substitute hydraulic drive grab boat, and flexible operation, easy to maintenance, safe and reliable, can be accepted by domestic construction enterprises, filled up domestic 10m
3the blank of large-scale all-electric frequency control grab boat above.
Electric Drive grab boat of the present invention, is comprised of hull and grapple dredger two parts, and bagger is arranged on the deck of hull.
Hull of the present invention, diesel oil tank, ballast tank, cooling water tank are arranged in both sides, and forepeak, afterpeak are arranged in two ends, and diesel generating set is arranged in intermediate arrangement auxiliary engine room and empty cabin in auxiliary engine room, be responsible for to the bagger power supply on deck.
Bagger of the present invention has adopted advanced steel work and revolution form:
Bagger of the present invention is comprised of jib, man-like shelf, turntable, pivoting support and pedestal five parts.
The revolution of bagger of the present invention is supported and is adopted three row's roller pivoting supports to substitute traditional roller rolling disc type supporting.Existing large-scale 10m
3above grab boat, no matter domestic or import, the slew gear between loop wheel machine and hull, generally all adopts the revolution form of roller rolling disk, although this passback form cost can be lower, weight is large, rotating accuracy is poor, easy to wear, fault rate is many, it is very complicated to install.What the present invention adopted is three row's rollers revolution supporting forms, is domesticly first three row's roller pivoting supports to be applied in to 10m
3on above grab boat, the feature of pivoting support be lightweight, install simple, running precision is high, be quick on the draw, fault-free supporting capacity is large, impacts littlely, operation control performance is good, plurality of advantages.
Placement machine room, electric panel room, drivers' cab above the turntable of bagger of the present invention, in engine house, arranged the drive unit of four great institutions: hoist, switching, luffing, device for revolving and driving, drive unit is comprised of variable-frequency motor, reductor, liquid braking device.Electric panel room is arranged in engine house, and power cabinet, frequency conversion tank, PLC cabinet and attached electric fixtures are arranged in the inside.
Four great institutions of the present invention: hoist, switching, luffing, slew gear, all adopt driven by power.Hoist, switching mechanism is that the action that hoists, opens and closes drum mechanism built motor, brake hydraulic cylinder by control realizes, and the action of hydraulic cylinder is by solenoid control.The action of each mechanism and management complete by driving with control system, adopt AC Frequency Control Speed Governing System.By AC converter, control variable-frequency motor and drive, band encoder interfaces, adopts closed loop control mode, realizes stepless time adjustment, and steadily, overload capacity is strong in starting.
The present invention's device for measuring force that has been bagger independent research, this device is only used an other pulley of pressing, and is arranged on man-like shelf, has greatly reduced jib head load.This device for mechanical is simple in structure, solves the problem that moves axially; Dynamometry result is accurate, and overload capacity is strong, manufactures simple and easy to doly, and cost is low.
The invention has the beneficial effects as follows:
1, cost performance is high.When guaranteeing technical advance, cost reduces greatly.
2, complete machine is lightweight.Owing to having adopted advanced steel work and revolution form, greatly reduce material power consumption.
3, control accuracy is high.The application of ac variable speed technology, makes performance accuracy surmount hydraulic pressure form, also has overload factor large, operates more flexible, easy to maintenance feature.
4, cost of production is low.Because Electric Drive is more accurate, can not cause power waste.Than similar product, save oil consumption, reduced cost of production.
5, construction duration is short.Motor Drive mode is simple in structure, mechanism is convenient to arrange, the construction duration of whole piece ship shortens.
6, be conducive to standardization, seriation.After this ship is succeeded in developing, can be according to the market demand, the very fast series of products of developing upper and lower specification.
Accompanying drawing explanation
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the front view of dredge boat of the present invention;
Fig. 2 is the cabin inner structure schematic diagram of dredge boat of the present invention;
Fig. 3 is the device for measuring force structural representation of bagger of the present invention;
In figure: 1. diesel oil tank, 2. ballast tank, 3. cooling water tank, 4. forepeak, 5. afterpeak, 6. auxiliary engine room, 7. empty cabin, 8. diesel generating set, 9. jib, 10. man-like shelf, 11. turntables, 12. pivoting supports, 13. pedestals, 14. engine houses, 15. drivers' cabs, 16. drive units that hoist, 17. open/close driving devices, 18. luffing drive units, 19. device for revolving and driving, the 20. other pulleys of pressing, 21. leading blocks, 22. other pulley bracket, 23. pressure sensors of pressing.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail:
As shown in Figure 1, 2, the 18m of the present embodiment
3electric Drive grab boat, is comprised of hull and grapple dredger two parts, and bagger is arranged on the deck of hull.
Hull of the present invention, diesel oil tank (1), ballast tank (2), cooling water tank (3) are arranged in both sides, forepeak (4), afterpeak (5) are arranged in two ends, intermediate arrangement auxiliary engine room (6) and empty cabin (7), in auxiliary engine room (6), arrange diesel generating set (8), be responsible for to the grapple dredger power supply on deck.
Bagger of the present invention is comprised of jib (9), man-like shelf (10), turntable (11), pivoting support (12) and pedestal (13) five parts, pivoting support (12) is supported in the rotating part of bagger on fixed pedestal (13), revolution is supported (12) and is adopted three row's rollers, increases flexural strength.
Placement machine room (14), electric panel room, drivers' cab (15) above the turntable of bagger of the present invention, in engine house (14), arranged the drive unit of four great institutions: hoist (16), switching (17), luffing (18), revolution (19) drive unit, drive unit is comprised of variable-frequency motor, reductor, liquid braking device.By motor drive reductor to realize to hoist, on-off action.Brake plays a part to stop and protecting, and improves security of system performance.Electric panel room is arranged in engine house, and power cabinet, frequency conversion tank, PLC cabinet and attached electric fixtures are arranged in the inside.
Four great institutions of the present invention: hoist, switching, luffing, slew gear, all adopt driven by power.Hoist, switching mechanism is that the action that hoists, opens and closes drum mechanism built motor, brake hydraulic cylinder by control realizes, and the action of hydraulic cylinder is by solenoid control.The action of each mechanism and management complete by driving with control system, adopt AC Frequency Control Speed Governing System.By AC converter, controlling variable-frequency motor drives, band encoder interfaces, adopt closed loop control mode, operating grip by drivers' cab (15) inputs to PLC by signal and controls the frequency of frequency converter and the rotating speed of motor, the velocity simulate amount signal of real-time exchange motor between while frequency converter and PLC, and constantly carry out velocity compensation, realize stepless time adjustment, steadily, overload capacity is strong in starting.
The present invention is 18m
3bagger independent research device for measuring force (Fig. 3).This device is arranged on man-like shelf, the other pulley (20) of pressing is installed between leading block (21) and reel, make wire rope form the angle of one 175～179 degree, thereby produce certain tension force, and press pulley bracket (22) by side, power is delivered on pressure sensor (23).The other pulley (20) of pressing is arranged on a major axis, can move vertically with wire rope and leading block (21), thereby the stability of assurance angle improves certainty of measurement, significantly reduces the wearing and tearing of pulley.The other pulley bracket (22) of pressing is provided with adjusting device, adjustable steel wire rope clamp angle.The power being delivered on pressure sensor (23) is only 1/10 of wire rope (11) pulling force, reduces the cost of pressure sensor (23).By PLC accurate Calculation, can reflect really and accurately the pulling force of wire rope.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (5)
1. an Electric Drive grab boat, by hull and grapple dredger two parts, formed, bagger is arranged on the deck of hull, by jib, man-like shelf, turntable, pivoting support and pedestal five parts, formed, pivoting support is supported in the rotating part of bagger on fixed pedestal, mechanism by hoisting, switching, luffing, slew gear form, it is characterized in that: bagger bucket capacity 18m
3, mechanism all adopts driven by power, by the electric set electric supply on ship, hoist, switching mechanism is to hoist by control, open and close drum mechanism built motor, the action of brake hydraulic cylinder realizes, and the action of hydraulic cylinder is by solenoid control, adopt AC Frequency Control Speed Governing System, by AC converter, controlling variable-frequency motor drives, band encoder interfaces, adopt closed loop control mode, operating grip by drivers' cab inputs to PLC by signal and controls the frequency of frequency converter and the rotating speed of motor, the velocity simulate amount signal of real-time exchange motor between while frequency converter and PLC, and constantly carry out velocity compensation, realize stepless time adjustment,
Described grapple dredger is provided with device for measuring force, described device for measuring force comprises leading block and the other pulley of pressing, the described other pulley of pressing is arranged between described leading block and reel, make wire rope form the angle of one 175～179 degree, thereby produce certain tension force, and press pulley bracket by side, power is delivered on pressure sensor; The described other pulley of pressing is arranged on a major axis, can move vertically with wire rope and described leading block, and the other pulley bracket of pressing is provided with adjusting device, adjustable steel wire rope clamp angle, and the power being delivered on pressure sensor is only 1/10 of lineoutofservice signal pull.
2. Electric Drive grab boat according to claim 1, it is characterized in that: diesel oil tank (1), ballast tank (2), cooling water tank (3) are arranged in hull both sides, forepeak (4), afterpeak (5) are arranged in two ends, intermediate arrangement auxiliary engine room (6) and empty cabin (7), in auxiliary engine room, arrange diesel generating set (8), be responsible for to the grapple dredger power supply on deck.
3. Electric Drive grab boat according to claim 1, is characterized in that: pivoting support (12) adopts three row's rollers.
4. Electric Drive grab boat according to claim 1, it is characterized in that: turntable (11) is placement machine room (14), electric panel room, drivers' cab (15) above, in engine house (14), arranged the drive unit of four great institutions: hoist (16), switching (17), luffing (18), revolution (19) drive unit, drive unit is comprised of variable-frequency motor, reductor, liquid braking device.
5. Electric Drive grab boat according to claim 4, is characterized in that: electric panel room is arranged in engine house (14), and power cabinet, frequency conversion tank, PLC cabinet and attached electric fixtures are arranged in the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410010330.9A CN103711161B (en) | 2014-01-02 | 2014-01-02 | Electrical drive grab dredger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410010330.9A CN103711161B (en) | 2014-01-02 | 2014-01-02 | Electrical drive grab dredger |
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| Publication Number | Publication Date |
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| CN103711161A CN103711161A (en) | 2014-04-09 |
| CN103711161B true CN103711161B (en) | 2014-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410010330.9A Active CN103711161B (en) | 2014-01-02 | 2014-01-02 | Electrical drive grab dredger |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196068B (en) * | 2014-07-24 | 2016-09-07 | 冯承渭 | A kind of grab type energy-saving dredger |
| CN105421511A (en) * | 2016-01-22 | 2016-03-23 | 武桥重工集团股份有限公司 | Grab bucket crane |
| CN106081950A (en) * | 2016-08-23 | 2016-11-09 | 太重（天津）滨海重型机械有限公司 | Fixed grab bucket ship unloader |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2051990U (en) * | 1989-09-15 | 1990-01-31 | 高国才 | Winding dynamic-metering element for wire rope |
| JP4883494B2 (en) * | 2008-11-04 | 2012-02-22 | 株式会社本間組 | Underwater dangerous goods recovery device and recovery method |
| CN102828537A (en) * | 2012-09-03 | 2012-12-19 | 三一集团有限公司 | Gantry type grab dredger |
| CN203080569U (en) * | 2012-12-28 | 2013-07-24 | 广州文冲船厂有限责任公司 | Energy-saving grab-bucket-type dredger |
| CN103015474B (en) * | 2012-12-28 | 2015-01-14 | 广州文冲船厂有限责任公司 | Energy-saving grab dredger |
| CN203359794U (en) * | 2013-04-28 | 2013-12-25 | 中国水电建设集团夹江水工机械有限公司 | Novel trolley device of crane travelling mechanism |
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Effective date of registration: 20151203 Address after: 115005 Liaoning city in Yingkou Province, the old border East Village Office Patentee after: DALIAN HUICHANG MARINE ENGINEERING TECHNOLOGY CO., LTD. Address before: Lunuode Building Exhibition in Shahekou District of Dalian City, Liaoning province 116000 24 floor Patentee before: DALIAN HUICHANG MARINE ENGINEERING TECHNOLOGY CO., LTD. |