CN201592946U - Steel wire rope tension device of shore-bridge bracket trolley - Google Patents
Steel wire rope tension device of shore-bridge bracket trolley Download PDFInfo
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- CN201592946U CN201592946U CN2009200157642U CN200920015764U CN201592946U CN 201592946 U CN201592946 U CN 201592946U CN 2009200157642 U CN2009200157642 U CN 2009200157642U CN 200920015764 U CN200920015764 U CN 200920015764U CN 201592946 U CN201592946 U CN 201592946U
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Abstract
The utility model discloses a steel wire rope tension device of a shore-bridge bracket trolley, which belongs to the technical field of portal cranes and comprises a mechanical system and a hydraulic system. The mechanical system comprises a tail pulley (1), a trolley running drum (2), a tension pulley (3), tension hydraulic cylinder pulleys (4), a trolley frame (5), steel wire ropes (6) and an arm frame front end pulley (7). The hydraulic system comprises an oil tank (8), an oil pump (9), a motor (10), a one-way throttle valve (11), a stop valve (12), an energy accumulator (13), an electromagnetic overflow valve (14), an overflow valve (15) and tension hydraulic cylinders (16). Compared with the prior art, the steel wire rope tension device has the advantages of simple structure, novelty, applicability and feasibility, low manufacturing cost and great improvement in assembly and disassembly and production efficiency.
Description
Technical field
The invention belongs to the portal crane technical field, more particularly belong to a kind of bank abutment bracket car rope tightening device.
Background technology
Along with developing rapidly of freight container traffic, bank bridge container hoisting crane also is to trend towards maximization, high speed and high efficiency.Bank bridge container hoisting crane is used for the major equipment that container handling operation between ship and bank is engaged in the wharf apron.Because bank bridge container hoisting crane has characteristics such as safe, efficient, reliable, thereby become the dress equipment that connects transport by surface, in global container transportation and trade, bringing into play irreplaceable effect.Bank bridge container hoisting crane relies on the dolly of high-speed cruising to realize the parallel motion of freight container.Bank bridge container hoisting crane can be divided into two kinds of automatic carriage formula and draw-crab types by the type of drive of its dolly.
The constructional feature of draw-crab type bank bridge container hoisting crane is: trolley travelling is realized by rope traction, in the actuating device of its running trolley is installed between machine house, thereby the deadweight that has alleviated running trolley greatly, thereby reduced the disposal load that Metal Structures of Shore Container Cranes is born, improved the complete machine performance; But because it has comparatively complicated steel cable winding system, cause rope capacity and deadweight all very big, certainly will form certain amount of deflection like this, certain relaxation can appear in steel rope.Because haulage cable is longer, be easy to generate rope stretch, sagging and vibrations, particularly, rock because the vibration of steel rope can make dolly produce, thereby influence the parking contraposition of dolly and the handling efficiency of freight container when dolly startup glancing impact.
Summary of the invention
The present invention has proposed a kind of bank abutment bracket car rope tightening device for solving above technical matters.
A kind of bank abutment bracket car rope tightening device of the present invention comprises mechanical system, hydraulic efficiency pressure system, and wherein: described mechanical system comprises afterbody pulley, trolley travelling reel, tension pulley block, hydraulic tensioning cylinder pulley, trolley frame, steel rope, the preceding head sheave of jib; Described steel rope by afterbody pulley, trolley travelling reel, tension pulley block, hydraulic tensioning cylinder pulley, jib before head sheave be connected the two ends of trolley frame; Described hydraulic efficiency pressure system comprises fuel tank, oil pump, motor, one-way throttle valve, shutoff valve, energy storage, electromagnetic relief valve, by pass valve, hydraulic tensioning cylinder; The steel rope of described mechanical system is two; Described hydraulic tensioning cylinder is two; Described hydraulic tensioning cylinder pulley is two.
Use a kind of bank abutment bracket car rope tightening device of the present invention, then bank bridge hoisting crane in working order down, the dolly haulage cable is in the tensile force scope of setting, avoid steel rope long because of span, from great cause more sagging, to influence the normal operation of running trolley; Before bank bridge hoisting crane, in the crossbeam pitching process, make haulage cable keep a less tensile force; When bank bridge hoisting crane broke down, tensile force increased, and when exceeding the design setting value, can guarantee that its tensile force can be not excessive, guarantees Host Security; In the Installation and Debugging process of steel rope, can make the dolly haulage cable not be subjected to the constraint of this device.
The present invention is compared with prior art: it is simple to have an apparatus structure, novelty, and applicable feasibility, cost is low, improves loading and unloading production efficiency efficient greatly.
Description of drawings
Accompanying drawing 1 is the integral structure scheme drawing of bank bridge hoisting crane of the present invention;
Accompanying drawing 2 is mechanicss of bank abutment bracket car rope tightening device of the present invention;
Accompanying drawing 3 is hydraulic parts of bank abutment bracket car rope tightening device of the present invention.
The specific embodiment
A kind of bank abutment bracket car rope tightening device of the present invention comprises mechanical system and hydraulic efficiency pressure system; Described mechanical system comprises afterbody pulley 1, trolley travelling reel 2, tension pulley block 3, hydraulic tensioning cylinder 4, trolley frame 5, steel rope 6, the preceding head sheave 7 of jib; Described steel rope 6 by afterbody pulley 1, trolley travelling reel 2, tension pulley block 3, hydraulic tensioning cylinder pulley 4, jib before head sheave 7 be connected the two ends of trolley frame 5; Described hydraulic efficiency pressure system comprises fuel tank 8, oil pump 9, motor 10, one-way throttle valve 11, shutoff valve 12, energy storage 13, electromagnetic relief valve 14, by pass valve 15, hydraulic tensioning cylinder 16.
Under the mode of operation of bank bridge hoisting crane, the dolly haulage cable is in the auto-tensioning process: when system works, electrical motor 10 starts, and the electromagnet of electromagnetic relief valve 14 gets.The pressure oil of oil pump 9 output at this moment enters the rod end chamber of hydraulic ram 4 through one-way throttle valve 11, and tension pulley block 3 is upward movement under the drive of the rod end chamber of hydraulic ram 4, thus tensioning the dolly haulage cable.Simultaneously pressure oil via one-way throttle valve 11, shutoff valve 12 to energy storage 13 fuel feeding energy storage.When system pressure reached certain value, pressure relay sent high-voltage signal, and the electromagnet of electromagnetic relief valve 14 is dead electricity immediately, and the pressure oil of oil pump 9 outputs unloads via electromagnetic relief valve 14, and system enters packing state under the effect of energy storage 13.When system pressure slowly drops to the predefined low voltage value of pressure relay, the rod end chamber fuel feeding that oil pump 9 recovers to hydraulic ram 4, system pressure is replenished, and sends high-voltage signal once more until pressure relay.So periodical duty guarantees that the tension force of dolly haulage cable remains between two setting values, and the car haulage cable is in the auto-tensioning process all the time.
Under the preceding crossbeam pitching mode of operation of bank bridge hoisting crane, bank bridge hoisting crane is under off working state, or boats and ships pull in to shore, when offshore, mobile position in storehouse, generally all the preceding crossbeam of bank bridge hoisting crane is steeved, in the pitching process, require car rope only to keep a less tensile force.At this moment, the secondary pressure of steel rope Hydranlic tensioner control plays a role, electromagnetic relief valve 14 electric, system pressure controlled in the setting pressure of electromagnetic relief valve 14 maintains in the definite value scope with the tension force that guarantees steel rope.
In the working process of bank bridge hoisting crane, by pass valve 15 plays the effect of safety valve, in the time of certain unforeseen circumstances of certain speciogenesis, when causing system pressure to rise to by pass valve 15 preset values, by pass valve 15 is opened, system pressure in the rod end chamber of hydraulic ram 4 remains on the certain value, guarantees that the suffered power of bank bridge crane structure also is certain value, has guaranteed the safety of main frame.
In the installation adjustment process of bank bridge hoisting crane, wish that steel rope is under the relaxed state, is not subjected to the constraint of this steel wire rope stretching device.This moment is because be off working state, only need open shutoff valve 12 manually, pressure oil is got back to fuel tank 8 after by this passage off-load, does not have pressure in the rod end chamber of hydraulic ram 4, piston rod moves downward under the traction of pulley and steel rope deadweight, thereby makes steel rope be in relaxed state fully.
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 (4)
1. bank abutment bracket car rope tightening device, it is characterized in that: described device comprises mechanical system, hydraulic efficiency pressure system, wherein:
Described mechanical system comprises afterbody pulley (1), trolley travelling reel (2), tension pulley block (3), hydraulic tensioning cylinder pulley (4), trolley frame (5), steel rope (6), the preceding head sheave (7) of jib; Described steel rope (6) is connected the two ends of trolley frame (5) by afterbody pulley (1), trolley travelling reel (2), tension pulley block (3), hydraulic tensioning cylinder pulley (4), the preceding head sheave (7) of jib;
Described hydraulic efficiency pressure system comprises fuel tank (8), oil pump (9), motor (10), one-way throttle valve (11), shutoff valve (12), energy storage (13), electromagnetic relief valve (14), by pass valve (15), hydraulic tensioning cylinder (16).
2. bank abutment bracket car rope tightening device according to claim 1, it is characterized in that: described steel rope (6) is two.
3. bank abutment bracket car rope tightening device according to claim 1, it is characterized in that: described hydraulic tensioning cylinder (16) is two.
4. bank abutment bracket car rope tightening device according to claim 1, it is characterized in that: described hydraulic tensioning cylinder pulley (4) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200157642U CN201592946U (en) | 2009-07-23 | 2009-07-23 | Steel wire rope tension device of shore-bridge bracket trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200157642U CN201592946U (en) | 2009-07-23 | 2009-07-23 | Steel wire rope tension device of shore-bridge bracket trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201592946U true CN201592946U (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200157642U Expired - Lifetime CN201592946U (en) | 2009-07-23 | 2009-07-23 | Steel wire rope tension device of shore-bridge bracket trolley |
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| CN (1) | CN201592946U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060237A (en) * | 2010-12-14 | 2011-05-18 | 天津五洲国际集装箱码头有限公司 | Shore bridge high-voltage on-machine cable loosening fault control protection method |
| CN102358569A (en) * | 2011-08-23 | 2012-02-22 | 大连华锐股份有限公司 | Traction mechanism for crane trolley with adjustable tension device |
| CN102616669A (en) * | 2012-04-01 | 2012-08-01 | 苏州农业职业技术学院 | Rail transmission mechanism |
| CN104071716A (en) * | 2014-07-18 | 2014-10-01 | 天津五洲国际集装箱码头有限公司 | Rope replacing mechanism and replacing method for encircling steel wire ropes in shore-bridge bracket trolley |
| CN104192744A (en) * | 2014-08-28 | 2014-12-10 | 润邦卡哥特科工业有限公司 | Trolley steel wire rope strainer |
-
2009
- 2009-07-23 CN CN2009200157642U patent/CN201592946U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102060237A (en) * | 2010-12-14 | 2011-05-18 | 天津五洲国际集装箱码头有限公司 | Shore bridge high-voltage on-machine cable loosening fault control protection method |
| CN102060237B (en) * | 2010-12-14 | 2012-07-04 | 天津五洲国际集装箱码头有限公司 | Shore bridge high-voltage on-machine cable loosening fault control protection method |
| CN102358569A (en) * | 2011-08-23 | 2012-02-22 | 大连华锐股份有限公司 | Traction mechanism for crane trolley with adjustable tension device |
| CN102616669A (en) * | 2012-04-01 | 2012-08-01 | 苏州农业职业技术学院 | Rail transmission mechanism |
| CN104071716A (en) * | 2014-07-18 | 2014-10-01 | 天津五洲国际集装箱码头有限公司 | Rope replacing mechanism and replacing method for encircling steel wire ropes in shore-bridge bracket trolley |
| CN104192744A (en) * | 2014-08-28 | 2014-12-10 | 润邦卡哥特科工业有限公司 | Trolley steel wire rope strainer |
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| 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: 20100929 |