Multipurpose port tire crane

Abstract

The invention provides a multipurpose port tire crane. The multipurpose port tire crane comprises a hoisting mechanism, a rotary table, an internal-combustion engine, an amplitude variation mechanism, a rotary mechanism, a propeller strut, an arm frame, a cab, a driving control cabinet, a cable winding barrel or a cable box, a hydraulic pump station, a multi-path valve, a steering axle, a driving axle, a driving mechanism, a movable supporting leg, a fixed supporting leg and a bottom frame, wherein the hoisting mechanism is formed by two sets of independent hoisting winding engines so that the hoisting mechanism can be independently driven and can also be synchronously driven in a combined manner; when a double-rope grabbing bucket is used as an object taking device, loading / unloading and stacking work of bulk cargoes of a wharf storage yard and a freight yard can be realized; when a lifting hook is used as the object taking device, hanging and loading / unloading working requirements of general cargoes of the wharf storage yard and the freight yard can be realized.

Description

technical field [0001] The present invention relates to a mobile crane for loading and unloading bulk cargo and miscellaneous cargo in ports and cargo yards, in particular to a multi-purpose crane that is not only suitable for loading and unloading bulk cargo (double-cable grab operation) but also miscellaneous cargo (hook operation). Use harbor tire cranes. Background technique [0002] At present, the port tire crane is a kind of professional lifting equipment suitable for the loading and unloading of general cargo in the port. It is mainly designed for the hoisting and loading and unloading of general cargo. It is the first choice of lifting equipment for the loading and unloading of general cargo in the wharf yard and freight yard, but its function is single, and the hook can only be used as the pick-up device, and the scope of application is restricted. [0003] In order to meet the efficiency of the loading and unloading of general cargo, the port must be equipped wit...

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Problems solved by technology

[0002] At present, the port tire crane is a kind of professional lifting equipment suitable for the loading and unloading of general cargo in the port. It is mainly designed for the hoisting and loading and unloading of general cargo. It is the preferred lifting equipment for the loading and unloading of general cargo in the wharf yard and freight yard, but its function is single, and the hook can only be used as the pick-up device, and the scope of application is restricted

[0003] In order to meet the efficiency of the loading and unloading of general cargo, the port must be equipped with a certain number of tire-tyred cranes. When the total amount of general cargo loading and unloading is insufficient, a large number of equipment, personnel, and related facilities and departments supporting it are insufficient. rate of less than 10%, resulting in a lot of waste of manpower and material resources; and from the functional point of view of the existing port tire cranes, most of them can only meet the hook operation requirements of general cargo, a few port tire cranes use a single lifting mechanism double roll Lifting mode (clutch control) is used for grab operations, but the lifting capacity is limited, the speed is slow, the efficiency is low, and the labor intensity of the operators is high, which is far from meeting the loading and unloading requirements of the port.

[0004] In order to improve the efficiency of loading and unloading operations and adapt to the requirements of environmental protection, the current cargo transportation is constantly developing towards the direction of containerization and bulk cargo, and the proportion of general cargo is getting smaller and smaller. For general-purpose terminals, the types of cargo are complex. There are also bulk cargo and container cargo for quantitative breakbulk cargo. Due to various reasons, the general cargo yard is not equipped with professional bulk cargo operation equipment, and non-port-specific construction machinery (excavators and loaders) are usually used to carry out the operation. For bulk cargo handling operations, the service life of such equipment is usually only 3-5 years, and the energy consumption and maintenance cost per unit of operation are 2-3 times that of professional equipment such as port tire cranes. As a result, most ports have throughput and economical The current situation of low efficiency; therefore, for general-purpose terminals, in order to meet the requirements of multi-cargo loading and unloading operations, a multi-purpose port tire crane with one machine and multiple functions can not only reduce the initial investment cost of the terminal, but also create good economic benefits

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