Summary of the structural characteristics and selection methods of the grabbing device (wood grabber)

[BONOVO]

Wood grabbers are widely used in our daily life. They are used to grab wood, paper, steel, and grass. The wood grabber at the front end is particularly important.

Composition of wood grabber:

The wood grabber is composed of a series of mechanisms such as left and right sleeves, connecting rods, left grab claws, right grab claws, left grab claw control levers, right grab claw control levers, frames, hydraulic cylinders, and rotary motors.

Classification of wood grabbers

(1) Mechanical wood grabber; (2) 360° rotating hydraulic wood grabber; (3) Non-rotating hydraulic wood grabber.

One type is a mechanical wood grabber that can be used without modifying the excavator pipeline and hydraulic related systems (low-cost type);

The other type requires modification of the rotary excavator wood grabbing line and hydraulic related systems to meet the needs of 360-degree rotation. (convenient, practical, cost-effective);
Configuration of wood grabber
Mechanical excavator wood grabber: driven by the excavator bucket cylinder, no additional hydraulic blocks and pipelines are required;
360° rotating hydraulic excavator wood grabber: two sets of hydraulic valve blocks and pipelines need to be added to the excavator for control;
Non-rotating hydraulic excavator wood grabber: one set of hydraulic valve blocks and pipelines need to be added to the excavator for control.
Selection of wood grabber:
According to the actual working conditions and environment of the user, we can divide it into: standard large and small arms with wood grabbers, extended arms with wood grabbers (extended arms are generally not recommended to be too long). If the user does not consider the loading problem, he can choose a mechanical wood grabber, which is cheap and cost-effective; if the customer needs to grab and transport, and also needs to load and transport, it is recommended to use a rotary wood grabber, which is highly practical, saves working time, and is simpler and more convenient.
It can also be designed into two types according to customer requirements: mechanical and hydraulic types, among which the hydraulic type has hydraulic rotation and non-hydraulic rotation according to customer needs. The mechanical type is directly driven by the excavator bucket cylinder, without adding hydraulic valve blocks and pipelines; the hydraulic wood grabber (gripper, claw) without rotation needs to add a set of hydraulic valve blocks and pipelines to control; the hydraulic wood grabber (gripper, claw) with rotation needs to add two sets of hydraulic valve blocks and pipelines to control, different needs to cope with different working environments.
Wood grabber use occasions:
The wood grabber is professionally used for the clamping/handling/loading of logs in freight port terminals/timber yards and other fields.

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