Grab bucket crane and hook crane difference analysis. Crab bucket crane and hook crane, which do you select? Check the differences of grab bucket crane and hook crane and select according to the crane features and needs of your application. Dongqi grab bucket crane and hook crane for sale now.
Grab bucket and hooks are common overhead crane on the take-off device, which are used to carry all the lifting load crane components. But the difference between grab bucket cranes and hook cranes is obvious.
Hook crane, hook overhead crane
First of all, the difference between the lifting and the bearing capacity of both the hook and the grabber can be used as the lifting device of the crane.
Under normal circumstances, the hook crane is a direct hanging items, hooks and heavy objects linked through the rope hook, tied to achieve, mostly for the lifting of the whole heavy objects, need to be pre-bundled or packaged Heavy objects and so on.
However, grab bucket cranes are used to crawl items, the relationship between grapples and heavy objects is directly bite or load to achieve, and therefore used for direct loading and unloading of bulk material, or the direct crawling of the material, without the need for heavy objects Pre-binding or packing and other operations.
Followed by a different configuration on the hoisting mechanism.
Clamshell crane is due to manipulation of the grab bucket opening and closing, the crane needs to have two sets of corresponding traction mechanism, usually adopts double drum winch to separate support grab opening and closing and displacement. While the hook crane only needs a set of traction mechanism to achieve the displacement of the hook is enough, without the need to configure a dual-roll winch. However, if it is a double crane with its own configuration of the crane type, it is a different matter.
Grab cranes are used in the field of ordinary hook cranes to complete the work to capture the majority of bulk materials, the general use of custom way to sell, and general crane is different, grab crane also need to determine the volume of grab bucket.
Grab crane, grab bucket overhead crane for sale
In daily use, the more common crane grappling form is the shellfish and multi-flap type. The shellfish is used to complete the gravel, coal, mine, earthwork, and so on. It is used in the field of sand, coal, mine and infrastructure. Stone, and soil and other bulk material crawling, lifting work. Wood, straw grapples are also a kind of shellfish grab can be used in the timber factory to grasp the logs, straw processing plant used to grab straw bundles.
The multi-flap grab is controlled by the opening and closing of a plurality of jaws to control the crawling material for the scrap steel scraping and refining work in the steel mill, the bulk waste of the garbage disposal site and the construction site, And the handling of the car, the car recycling field for car disintegration, refining and recycling work, bucket teeth can be replaced, and the use of high hardness wear-resistant steel, so as to ensure long service life; valve shell can be selected according to different working environment; Flap, semi-closed flap, broadly flap and narrowly flap.
Grab bridge crane and ordinary hook bridge crane difference is that the former is in the bridge crane under the hook to install the grab, through the control of the opening and closing of the hook to complete the hook can not complete the material crawling operations.
Grab crane working principle: the beginning of the work, support the rope will lift the hopper in the appropriate position, and then put down the opening and closing wire rope, then rely on the weight of the beam below the bucket of the following big axis as the center of the bucket will open, when the bucket Part of the open to the two ears of the collision block, the bucket to open to the maximum limit. At the end of the bucket, the upper sheave and the lower sheave are increased from the center of the pulley, and then the wire rope is supported to fall. The open gripper falls on the loose stack to be gripped and then the opening and closing of the wire rope. And the center of the lower beam pulley back to the original position, thus completing the process of crawling the material. In the closed bucket has been filled with materials, and finally to enhance the opening and closing wire rope, the entire grab was also lifted, the traffic to the required unloading site, the bucket to remove the crawled material.