Do you know the orange peel grab?--- Single rope orange peel grab

Orange peel grabs (short for mechanical orange peel grabs) are equipped under the crane. By controlling the ascent and descent of the crane wire rope, it is an effective tool for loading and unloading large particles and blocks such as ore, lump coal, limestone, ballast, and pig iron.The jaw petals of the grab are like petals (so there are common names such as plum blossom grab, lotus grab, orange grab and so on. People’s imagination is very rich. Multi-petal grabs can come up with many names, which is not conducive for users to choose. It is not conducive to the development of this industry, it is better to standardize). The front end is pointed, which reduces resistance, facilitates the insertion of materials, and improves the digging force.

The orange peel grab is composed of a single rope orange peel grab, a double rope orange peel grab, and a four rope orange peel grab. According to the specific gravity of the grabbed goods, it can be divided into light orange peel grab, medium orange peel grab, and heavy orange peel grab.

The closing force of the grab is realized by the increase of the lower wheel group of the grab. The pulley block magnification is generally 3~5, and the pulley block magnification is large, and the digging force is large. Now I will introduce these three orange peel grabs.

Single rope orange peel grab

The single rope orange peel grab is an effective tool that is directly hung under the hook of a single-drum crane and can load and unload ore, ore powder, pig iron, lump coal, and other massive bulk cargoes under various harsh environments. According to the method of controlling the opening and closing of the grab, the single-cable orange peel grab is divided into a floor-opening grab and a wireless remote control grab. The single-cable landing open grab works reliably and has low failure. The disadvantage is low efficiency. The remote control grab has low failures (referring to quality producers) and high efficiency.

Single rope multi flap grab (open on the ground) composition: Upper bolster, strut, lower bolster, guide rail, sliding seat, pulley block, bucket flap, etc.

The closing force of the single rope orange peel grab is realized by the pulley block on the upper and lower sides of the grab, and the pulley block magnification is generally 3.

The working principle of the single rope orange peel grab bucket: the opening and closing of the grab bucket is controlled by the up and down of the crane's wire rope to control the internal sliding seat of the grab to slide up and down along the guide rail. The guide rail is provided with a lock and fixed to the lower bolster. The sliding seat is provided with a pulley block and an opening and closing mechanism. Place the open grab bucket on the material pile, loosen the steel wire rope, slide the sliding seat to the lower bolster, lock the opening and closing mechanism, and then lift the wire rope, the grab bucket starts to close and grab the goods. Put the closed grab bucket on the material pile, loosen the wire rope, open the opening and closing mechanism, then lift the wire rope, the sliding seat against the upper bolster, continue to lift the wire rope, the grab opens and unloads.

The opening and closing mechanism for the conversion between the support cable and the opening and closing cable of the single rope grab is a star-wheel type opening and closing mechanism.It is simple structure and convenient operation, which can accurately complete the opening and closing actions in various conditions.

Connection with crane: the two steel wire ropes of the grab bucket can be connected to the steel wire rope on the crane respectively.

(To be continued...)