High Performance Clamshell Grab for overhead crane

Grab bridge crane is mainly composed of box bridge, grab trolley, big car running mechanism, driver's cab and electric control system. The extract device is a grab bucket that can grab bulk materials. The clamshell bridge crane has open and closed mechanism and lifting mechanism, and the...

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Product Details

Overview

Grab bridge crane is mainly composed of box bridge, grab trolley, big car running mechanism, driver's cab and electric control system.

The extract device is a grab bucket that can grab bulk materials.

The clamshell bridge crane has open and closed mechanism and lifting mechanism, and the grab bucket is hoisted by four wire rope respectively in the open and closed mechanism and the lifting mechanism.

The opening and closing mechanism drives the grab bucket to close and grab the material. When the bucket hole closes, the hoisting mechanism is started immediately, so that the four wire ropes are carried out on average.

When discharging, only open and close the mechanism, the opening of the hopper, inclined material.

In addition to the lifting mechanism, the rest of the structure is basically the same as the hook bridge crane.


Parameter

Grab bridge crane work level is A6,A7 

work environment is 20 ℃~+40℃

1.The clamshell bridge crane is widely used in the loading and unloading of power plant, yard, workshop, wharf and so on.

2.The clamping bridge crane is a heavy duty work system.

3.The whole mechanism of the clamping bridge crane is operated in the driver's room, and the direction of the door of the driver's cab is: end in, side entry and top entry.

4.The weight of the clamping bridge crane shall include the weight of the gripper.

5.The opening direction of the grab is parallel to the vertical main beam.


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Grab operation

1.Opening operation: reduce the hoisting and opening to the appropriate position,stop the lifting and descending,open and close continue to drop,the grab gradually open,complete the opening action.

2,grab a closed operation: open and close drum lifting operation,grab the upper pulley block, the lower pulley block move up,to grab grab teeth cross over each other,grab the closing of the action is complete.

In the process of closure,the lifting drum shall be operated properly,so that the lifting wire rope will not sag.

3.The rise and fall of the grab: whether the grab is open or closed,it can be operated either up or down.

During operation,the lifting and closing rollers must be carried out simultaneously.


Pics Inside Factory

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