CN102490871A - Hydraulic boarding ladder - Google Patents

Hydraulic boarding ladder Download PDF

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Publication number
CN102490871A
CN102490871A CN2011104115782A CN201110411578A CN102490871A CN 102490871 A CN102490871 A CN 102490871A CN 2011104115782 A CN2011104115782 A CN 2011104115782A CN 201110411578 A CN201110411578 A CN 201110411578A CN 102490871 A CN102490871 A CN 102490871A
Authority
CN
China
Prior art keywords
ladder
hydraulic
boarding ladder
rotation
valve
Prior art date
Application number
CN2011104115782A
Other languages
Chinese (zh)
Inventor
刘静
武美萍
张军
Original Assignee
江南大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201010584866.3 priority Critical
Priority to CN2010105848663A priority patent/CN102001421A/en
Application filed by 江南大学 filed Critical 江南大学
Priority to CN2011104115782A priority patent/CN102490871A/en
Publication of CN102490871A publication Critical patent/CN102490871A/en

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Abstract

The invention relates to a hydraulic boarding ladder. The ladder is connected onto a rotation base in pivot mode through a rotating shaft, a piston of a lifting hydraulic cylinder is hinged with a connection portion of the ladder, a cylinder body of the lifting hydraulic cylinder is hinged with the top face of the rotating base, and the ladder swings vertically with the axis of the rotating shaft as the center under the drive of telescopic action of the lifting hydraulic cylinder. A large gear is fixed on a base frame, a hydraulic motor is fixed on the rotation base, and an output shaft of the hydraulic motor is provided with a pinion meshed with the large gear. The hydraulic motor conducts meshing transmission through the gears when rotating to achieve left rotation and right rotation of the boarding ladder, and the whole set of device is controlled by a hydraulic control system. The hydraulic boarding ladder is capable of achieving not only 30-degree vertical swinging and 180-degree horizontal rotation but also aerial stopping, vertical floating and horizontal rotation floating. When the boarding ladder meets a dock in the rotation process, the boarding ladder can present the flexible state to prevent damage to the boarding ladder or the dock after the pressure exceeds a certain value.

Description

The hydraulic pressure boarding ladder

Technical field

The present invention relates to the marine equipment field, especially a kind of hydraulic pressure boarding ladder.

Background technology

The upper and lower steamer of passenger major part except that steamer carries gangway ladder adopts easy boarding ladder in coastal each port and pier of China at present, and this boarding ladder often need be regulated adjustable height with manual setter, and degree of automation is very low.In addition, this boarding ladder also need could well dock with the steamer hatch door by means of equipment such as hoisting cranes sometimes, and has certain potential safety hazard.The boarding ladder device that adopts hydraulic pressure is also arranged at present; The structure of these boarding ladders is compact inadequately; In addition stormy waves to the influence of hull can make hull have up and down float with about rock and up and down integrated motion; The boarding ladder that occurs at present can only fluctuate with stormy waves accomplishing to a certain degree, and this obviously can not adapt to complicated ship motion situation; Therefore the range of use of this boarding ladder is narrow and small, especially can not use for marine operation at all.

Summary of the invention

The applicant is low to above-mentioned existing boarding ladder degree of automation; Structure is compact inadequately; Can not adapt to complicated shortcomings such as ship motion situation, a kind of hydraulic pressure boarding ladder rational in infrastructure is provided, thereby can satisfy complicated applied environment needs; Realization fluctuates and these two actions of double swerve, thereby guarantees equipment and personnel's stability and safety.

The technical scheme that the present invention adopted is following:

A kind of hydraulic pressure boarding ladder; Ladder is articulated on the revolution pedestal through pivot center; The piston of lifting hydraulic cylinder and the connecting portion of ladder are hinged, and the cylinder body of lifting hydraulic cylinder is hinged on the revolution base top surface, and ladder under the expanding-contracting action of lifting hydraulic cylinder drives is that the center is done and swung up and down with the pivot center; Big gear wheel is fixed on the pedestal, and HM Hydraulic Motor is fixed on the revolution pedestal, and hydraulic motor output shaft is provided with miniature gears, and miniature gears is meshed with big gear wheel, through meshed transmission gear, realizes the left rotation and right rotation of boarding ladder when HM Hydraulic Motor rotates; Package unit is controlled through hydraulic control system.

It is further characterized in that: said hydraulic control system is provided with the electronic control part and the manual control part of parallel connection, switches through manual two-position four way change valve.

The oil circuit of lifting hydraulic cylinder adopts the electronic control of solenoid directional control valve or the hand change over valve of 3-position 4-way manually to control, and one way sequence valve and one-way throttle valve also have been connected in series.

The oil circuit of HM Hydraulic Motor adopts the electronic control of solenoid-operated proportional change-over valve of 3-position 4-way or manual proportional reversing valve manually to control, and high pressure relief valve is connected in parallel on the both sides oil circuit of HM Hydraulic Motor.

Beneficial effect of the present invention is following:

The 30 degree swings up and down that the present invention not only can realize boarding ladder with about 180 degree rotations, and can realize aerial stop, promptly about 30 degree stop with interior optional position, in the left rotation and right rotation process in 180 degree optional position stop.More excellent is that the present invention can realize fluctuating of boarding ladder and left rotation and right rotation unsteady (function that fluctuates with stormy waves is arranged) when boarding ladder rides on the harbour; When boarding ladder was run into harbour in rotary course, after surpassing certain pressure, boarding ladder can present flexible state, prevents to damage, damages boarding ladder or harbour.

The present invention has also designed in hydraulic circuit especially switches hydraulic circuit electrically and manually, the unsve situation of boarding ladder when preventing the powering-off state generation, and this has also improved safety control greatly.

The present invention adopts proportion magnetic valve to solve the excessive problem of boarding ladder rotor inertia, during starting with the little current start of proportional valve control, reach certain speed after; Normal current starts; Let the ladder smooth rotation, slowly stop through the control ratio valve when stopping again, it is reliable to operate steadily.

Description of drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is the birds-eye view of Fig. 1.

Fig. 3 is the swing type mechanism cutaway view among Fig. 1.

Fig. 4 is the birds-eye view of Fig. 3.

Fig. 5 is a hydraulic system principle figure of the present invention.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

The present invention adopts a pair of lifting hydraulic cylinder to be connected with the boarding ladder base portion, the rising and the decline of stretching and driving boarding ladder of utilization lifting hydraulic cylinder, and wherein the maximum angle of rise and fall is 30 degree; Control for angle can be confirmed with the particular case that is connected height of boarding ladder with the lifting hydraulic cylinder earrings by the stroke of lifting hydraulic cylinder piston rod.Like Fig. 1, shown in Figure 2; The ladder 1 of hydraulic pressure boarding ladder is connected on the revolution pedestal 5 through pivot center 2; The connecting portion of the piston of lifting hydraulic cylinder 3 and ladder 1 is hinged; The cylinder body of lifting hydraulic cylinder 3 is hinged on revolution pedestal 5 end faces, thereby can to drive at the expanding-contracting action of lifting hydraulic cylinder 3 be down 30 swings of spending about do at the center with pivot center 2 to ladder 1.

The present invention adopts the rotating of a pair of rotary motor, through a pair of miniature gears be fixed on the big gear wheel transfer torque on the pedestal, drive the left rotation and right rotation of boarding ladder, the anglec of rotation is about 180 degree.Like Fig. 3, shown in Figure 4, be provided with fuel tank 102 and pumping plant in the revolution pedestal 5, big gear wheel 103 is fixed on the pedestal 104; Two HM Hydraulic Motors 4 are fixed on the revolution pedestal 5; The output shaft of HM Hydraulic Motor 4 is provided with miniature gears 105, and miniature gears 105 is meshed with big gear wheel 103, and HM Hydraulic Motor 4 can pass through meshed transmission gear when rotating; Drive the revolution of revolution pedestal 5, thereby realize the left rotation and right rotation 180 degree rotations of boarding ladder.

The present invention not only can realize swinging up and down and left rotation and right rotation, and can realize aerial stop: promptly stop with interior optional position at 30 degree up and down, in the left rotation and right rotation process in 180 degree optional position stop.More excellent is that the present invention can realize fluctuating of boarding ladder and left rotation and right rotation unsteady (function that fluctuates with stormy waves is arranged) when boarding ladder rides on the harbour; When boarding ladder was run into harbour in rotary course, after surpassing certain pressure, boarding ladder can present flexible state, prevents to damage, damages boarding ladder or harbour.The present invention has also designed in hydraulic circuit especially switches hydraulic circuit electrically and manually, the unsve situation of boarding ladder when preventing the powering-off state generation, and this has also improved safety control greatly.These functions realize through following hydraulic control system 2.

Fig. 5 is a hydraulic control system schematic diagram of the present invention, at motoring condition:

A. 30 degree are swung up and down: when position, 3-position 4-way solenoid directional control valve 203 left side was connected, lifting hydraulic cylinder 3 pistons protracted and drive boarding ladder decline, and when right position was connected, lifting hydraulic cylinder 3 piston retraction drove the boarding ladder rising; Can control the speed that boarding ladder rises or descends through tubular type one-way throttle valve 210.

B. 180 degree rotations about: when 3-position 4-way solenoid-operated proportional change-over valve 201 left positions were connected, HM Hydraulic Motor 4 was just changeing, and driving boarding ladder just changes, and when connecting position, the right side, HM Hydraulic Motor 4 counter-rotatings drive the boarding ladder counter-rotating; Because this equipment rotor inertia is very big, the change-over valve 201 that the present invention adopts is an apportioning valve, adopts proportion magnetic valve to solve the excessive problem of boarding ladder rotor inertia; During starting with the little current start of proportional valve control; After reaching certain speed, normal current starts, and lets the ladder smooth rotation; Slowly stop through the control ratio valve when stopping, it is reliable to operate steadily again; Can certainly regulate rotating speed.

C. superposing type one way sequence valve 209 can play the pressurize effect when change-over valve connects meta, thereby makes boarding ladder can be parked in aerial 30 degree (is reference plane with the deck level) with interior optional position; When 3-position 4-way solenoid directional control valve 201 is in meta; The motor stall; Motionless (can not the rotation in boarding ladder location; Realize that the optional position stops in 180 degree), wherein proportional reversing valve 201 has been mainly used in the stopping time and has cushioned (promptly realizing starting and stopping at a slow speed) preferably, in the start-stop process, also plays the certain protection effect.

D. change-over valve 203 (3-position 4-way solenoid directional control valve) is the state of fluctuating when being in meta, and this kind design plays the safety guard-safeguard effect for preventing that marine stormy waves from influencing lifting hydraulic cylinder pressure and adopting; The both sides oil circuit of two HM Hydraulic Motors 4 all is provided with high pressure relief valve 204; Prevent that boarding ladder is when swinging; Meet obstructions very big obstacle and damage equipment, design just makes boarding ladder become flexible state with hull like this, prevents booster; Play the effect of balanced loop, improved the safety performance of boarding ladder.

For the situation that prevents sudden power takes place, the present invention has also designed two-position four-way hand valve 205, valve 206 especially, rises and switches electronic and manual action; When being connected on position, a left side is electronic, and when being connected on right, the hydraulic circuit of motorized motions is by short circuit; This moment, manual loop was connected, and realized manually control.Under the manual state:

A. 30 degree swings up and down: three position four-way directional control valve 208 connects right position, and lifting hydraulic cylinder 3 protracts, and boarding ladder descends; Lifting hydraulic cylinder 3 withdrawals when change-over valve 208 connects position, a left side, boarding ladder rises; Lifting hydraulic cylinder 3 stop motions when change-over valve 208 connects meta, the boarding ladder state that becomes to fluctuate.

B. 180 degree rotate about: manually 3-position 4-way proportional reversing valve 202 can be controlled the rotating of motor and stop, and HM Hydraulic Motor 4 is just changeing when connecing position, a left side, HM Hydraulic Motor 4 counter-rotatings when connecing right, thereby the left rotation and right rotation motion of control boarding ladder.

C. one way sequence valve 209 can play the pressurize effect when change-over valve connects meta, thereby makes boarding ladder can be parked in aerial 30 degree (is reference plane with the deck level) with interior optional position (one way sequence valve 209 still can play a role in the manual procedure); When manually 3-position 4-way proportional reversing valve 202 connect meta, HM Hydraulic Motor 4 stopped operating.

More than describing is to explanation of the present invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of spirit of the present invention, the present invention can do any type of modification.

Claims (4)

1. hydraulic pressure boarding ladder; It is characterized in that: ladder (1) is articulated on the revolution pedestal (5) through pivot center (2); The connecting portion of the piston of lifting hydraulic cylinder (3) and ladder (1) is hinged; The cylinder body of lifting hydraulic cylinder (3) is hinged on revolution pedestal (5) end face, and ladder (1) is that the center is done and swung up and down with pivot center (2) under the expanding-contracting action of lifting hydraulic cylinder (3) drives; Big gear wheel (103) is fixed on the pedestal (104); HM Hydraulic Motor (4) is fixed on the revolution pedestal (5); The output shaft of HM Hydraulic Motor (4) is provided with miniature gears (105); Miniature gears (105) is meshed with big gear wheel (103), through meshed transmission gear, realizes the left rotation and right rotation of boarding ladder when HM Hydraulic Motor (4) rotates; Package unit is controlled through hydraulic control system (2).
2. according to the described hydraulic pressure boarding ladder of claim 1, it is characterized in that: said hydraulic control system (2) is provided with the electronic control part and the manual control part of parallel connection, switches through manual two-position four way change valve.
3. according to the described hydraulic pressure boarding ladder of claim 1; It is characterized in that: the oil circuit of lifting hydraulic cylinder (3) adopts the electronic control of solenoid directional control valve (203) or the manually control of hand change over valve (208) of 3-position 4-way, and one way sequence valve (209) and one-way throttle valve (210) also have been connected in series.
4. according to the described hydraulic pressure boarding ladder of claim 1; It is characterized in that: the oil circuit of HM Hydraulic Motor (4) adopts the electronic control of solenoid-operated proportional change-over valve (201) of 3-position 4-way or manually manually control of proportional reversing valve (202), and high pressure relief valve (204) is connected in parallel on the both sides oil circuit of HM Hydraulic Motor (4).
CN2011104115782A 2010-12-13 2011-12-12 Hydraulic boarding ladder CN102490871A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201010584866.3 2010-12-13
CN2010105848663A CN102001421A (en) 2010-12-13 2010-12-13 Hydraulic boarding ladder
CN2011104115782A CN102490871A (en) 2010-12-13 2011-12-12 Hydraulic boarding ladder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104115782A CN102490871A (en) 2010-12-13 2011-12-12 Hydraulic boarding ladder

Publications (1)

Publication Number Publication Date
CN102490871A true CN102490871A (en) 2012-06-13

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CN2010105848663A CN102001421A (en) 2010-12-13 2010-12-13 Hydraulic boarding ladder
CN2011104115782A CN102490871A (en) 2010-12-13 2011-12-12 Hydraulic boarding ladder

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951262A (en) * 2012-10-17 2013-03-06 无锡德林船舶设备有限公司 Retractable marine folding gangway ladder
CN106275289A (en) * 2016-08-26 2017-01-04 南通力威机械有限公司 A kind of full circle swinging telescopic gangway ladder

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104554637A (en) * 2015-01-13 2015-04-29 青岛港国际股份有限公司 Boarding ladder
CN105539744B (en) * 2016-02-26 2018-11-02 福建省新能海上风电研发中心有限公司 Active Compensation formula offshore platform is stepped on by device and its application method
CN105564598A (en) * 2016-02-26 2016-05-11 江阴市黄山船舶配件有限公司 Slewing gangplank
CN107339268B (en) * 2017-08-29 2019-03-22 广船国际有限公司 A kind of control of gangway ladder and drive system and its method
CN107600330A (en) * 2017-08-29 2018-01-19 广船国际有限公司 A kind of gangway ladder control and drive system and method
CN110356516B (en) * 2018-04-10 2020-05-29 海洋能源科技股份有限公司 Offshore personnel embarkation wave compensator and wave compensation system thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU608699A1 (en) * 1974-03-28 1978-05-30 Предприятие П/Я А-1932 Ship ladder
JPS56128295A (en) * 1980-03-12 1981-10-07 Mitsui Eng & Shipbuild Co Ltd Bridging between ships on water
CN1821016A (en) * 2006-02-18 2006-08-23 王伟明 Full hydraulic driven boarding ladder
CN2823109Y (en) * 2005-07-09 2006-10-04 姜堰市船舶舾装件有限公司 Multiple-direction rotating drawboard used for slip
JP3962698B2 (en) * 2003-03-12 2007-08-22 カヤバ工業株式会社 lamp device
CN200981636Y (en) * 2006-12-08 2007-11-28 姜堰市船舶舾装件有限公司 Rotary gang board
CN101169145A (en) * 2006-10-24 2008-04-30 中国国际海运集装箱(集团)股份有限公司 Boarding bridge ferry plate hydraulic system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU608699A1 (en) * 1974-03-28 1978-05-30 Предприятие П/Я А-1932 Ship ladder
JPS56128295A (en) * 1980-03-12 1981-10-07 Mitsui Eng & Shipbuild Co Ltd Bridging between ships on water
JP3962698B2 (en) * 2003-03-12 2007-08-22 カヤバ工業株式会社 lamp device
CN2823109Y (en) * 2005-07-09 2006-10-04 姜堰市船舶舾装件有限公司 Multiple-direction rotating drawboard used for slip
CN1821016A (en) * 2006-02-18 2006-08-23 王伟明 Full hydraulic driven boarding ladder
CN101169145A (en) * 2006-10-24 2008-04-30 中国国际海运集装箱(集团)股份有限公司 Boarding bridge ferry plate hydraulic system
CN200981636Y (en) * 2006-12-08 2007-11-28 姜堰市船舶舾装件有限公司 Rotary gang board

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102951262A (en) * 2012-10-17 2013-03-06 无锡德林船舶设备有限公司 Retractable marine folding gangway ladder
CN102951262B (en) * 2012-10-17 2015-12-16 无锡德林船舶设备有限公司 Retractable collapsible gangway ladder peculiar to vessel
CN106275289A (en) * 2016-08-26 2017-01-04 南通力威机械有限公司 A kind of full circle swinging telescopic gangway ladder

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Application publication date: 20120613