The double trolley container handling crane of capable of hoisting dual 40 feet casees
The present invention relates to container handling crane, particularly a kind of double trolley container handling crane of capable of hoisting dual 40 forty equivalent unit 40s.
The continuous growth of the thriving demand of world's freight container traffic and China's container port throughput, the container handling technical equipment has been proposed to upgrade higher requirement, therefore press for the high efficiency Quayside container loading and unloading system of development and Design, to satisfy the requirement of boats and ships maximization and high speed to the hoisting crane capacity rating.
Existing hoisting crane has the hoisting crane of double trolley hoisting crane and capable of hoisting dual 40 forty equivalent unit 40s, they respectively have advantage, if with the combination of advantages of these two kinds of hoisting cranes together, produce a kind of later-model hoisting crane, then can further improve the work production rate of container handling crane.
Summary of the invention
Task of the present invention provides a kind of double trolley container handling crane of improved capable of hoisting dual 40 feet casees, and it has solved the only capable of hoisting dual 40 feet casees of existing container handling crane and its structure itself does not adopt double trolley and double trolley structure hoisting crane itself can not hang the problem of two 40 feet casees.
Technical scheme of the present invention is as follows:
A kind of double trolley container handling crane of capable of hoisting dual 40 feet casees, it disposes two dollies, dolly and on this upper track, moving before the upper track of crossbeam is equipped with, the back dolly is housed and on this lower tracks, moves in the lower tracks of doorframe crossbeam, the transfer platform that container space is set is housed below described doorframe crossbeam, dolly once winches to two 40 forty equivalent unit 40s on the described transfer platform simultaneously by described upper track before described, described back dolly winches to the freight container on the described transfer platform on the ground handling trolley one by one by described lower tracks, and vice versa for charge and discharge operations.
The double trolley container handling crane of capable of hoisting dual 40 feet casees of the present invention is a kind of improvement and innovations of making on double trolley hoisting crane and capable of hoisting dual 40 feet case crane foundations, it had both inherited the advantage of double trolley hoisting crane and capable of hoisting dual 40 feet case hoisting cranes, their existing defectives have been overcome again, improved the handling efficiency of hoisting crane widely to Large Container Ship, solved the quick matching problem of goliath, further improved the work production rate of container handling crane ground handling trolley.
Dolly can two 40 forty equivalent unit 40s side by side of disposable easily loading and unloading before of the present invention, utilize extremely low lifting altitude of back dolly and extremely short range ability simultaneously, the loading and unloading location that has solved freight container between hoisting crane and the ground handling trolley well prevents shaking problem, has improved the handling speed between hoisting crane and the ground handling trolley.
Container handling crane of the present invention can not only use on automatic dock, and is highly suitable on the conventional harbour of freight container and uses, and has good development prospect and application market widely.
Description of drawings
Accompanying drawing is the structural representation of the double trolley container handling crane of a kind of capable of hoisting dual 40 feet casees of the present invention.
The specific embodiment
Referring to accompanying drawing, the double trolley container handling crane of a kind of capable of hoisting dual 40 feet casees of the present invention disposes two dollies, and two dollies are independently moving on two tracks up and down separately.Preceding dolly 1 is installed on the upper track 3 of crossbeam, and moves on this track.On the crossbeam, it highly was the normal height and position of conventional hoisting crane before and after preceding trolley track 3 was positioned at, the preceding dolly 1 main loading and unloading that realize the freight container between box ship and the transfer platform.Back dolly 2 is installed on the lower tracks 4 of doorframe crossbeam 5, and moves on this track.The height of back trolley track 4 is overhead nearer, the back dolly 2 main loading and unloading of being responsible for freight container between ground handling trolley and the transfer platform.
The transfer platform 6 that container space is set is equipped with in optimization position below doorframe crossbeam 5.Before dolly 1 be responsible for side by side disposable the winching on the transfer platform 6 of two 40 forty equivalent unit 40s on the box ship 7 by orbit 3, perhaps before dolly 1 with disposable the winching on the box ship 7 of two 40 forty equivalent unit 40s on the transfer platform 6.Because disposable two 40 forty equivalent unit 40s of slinging of preceding dolly, the capacity rating of therefore preceding dolly are two times of conventional hoisting crane.Before dolly also can load and unload four 20 forty equivalent unit 40s or one 40 forty equivalent unit 40 and two 20 forty equivalent unit 40s simultaneously.Certainly, preceding dolly also can load and unload one 20 forty equivalent unit 40 as conventional hoisting crane, or one 40 forty equivalent unit 40, or one 45 forty equivalent unit 40, or one 53 forty equivalent unit 40.
Back dolly 2 is responsible for the freight container on the transfer platform 6 is winched on the ground handling trolley 8 one by one by orbit 4, and perhaps back dolly 2 winches to the freight container on the ground handling trolley 8 on the transfer platform 6 one by one.The setting of lower tracks 4 has utilized the constructional feature of hoisting crane itself dexterously, itself and floor level are reduced greatly, trolley travelling is apart from shortening, thereby make the back dolly that optimized lifting altitude and range ability arranged, make that contraposition is easy between hoisting crane and the ground handling trolley, the loading and unloading location is anti-shakes, and has improved handling speed and handling efficiency.
Two dollies are by the operation of transfer Platform Implementation relay-type, can adopt full automatic unattendedly, also can adopt work pattern artificial or that remote manipulation combines according to user's request.The transfer platform is except the transfer relay function that can realize two dollies, the handling labor of four jiaos of lock pins of freight container also can be finished by the workman on the transfer platform, promptly utilize the time difference of two dolly relay operations, make the angle lock pin time of loading and unloading container, no longer take operating turnaround, thereby improve the handling efficiency of hoisting crane.Yet conventional hoisting crane is when operation, and the loading and unloading of container angle lock pin are generally finished by the workman when the ground on the ground by the dolly freight container that plays, the dolly next circulation of can only being allowed for access after the workman finishes the loading and unloading of container angle lock pin.The preceding dolly of this hoisting crane just can be left away container crane immediately to the transfer platform and be carried out next one circulation, thereby has saved the time of getting lock pin in the preceding dolly work cycle.
Since the back dolly hoist and trolley travelling distance very short, its cycle time is near half of a cycle time of preceding dolly, so that its efficient is coordinated mutually with preceding dolly.