RU217484U1 - Jaw loader grip - Google Patents

Abstract

The utility model relates to the jaw grippers of loaders and can be used for loading round timber into vehicles from high stacks at logging sites and timber warehouses. The loader's jaw grip comprises a lower jaw articulated on the loading equipment of the base chassis, an upper jaw that is hinged to the lower jaw, upper jaw drive hydraulic cylinders mounted on the lower jaw, a transverse beam mounted on the convex part of the upper jaw, teeth, directed forward along the course of the loader and located on the transverse beam. 2 ill.

Description

The utility model relates to the jaw grippers of loaders and can be used for loading round timber into vehicles from high stacks at logging sites and timber warehouses.

Known jaw grippers for loaders, for example jaw gripper 332С.55.00.000 of universal loaders AMKODOR 332С4-01 and AMKODOR 332С4-03 -03 Operation manual 333V.00.00.000RE / A. K. Gerasimovich, L. L. Gumennikov, K. I. Ivchik, A. I. Potapovich, L. A. Samushchenko, L. A. Sirotina, T. D. Tarshikova. - Minsk: OJSC "Amkodor", 2010. - P. 22), containing the upper and lower jaws connected by hinges, the opening and closing of the upper jaw is carried out by hydraulic cylinders mounted on the lower jaw.

The disadvantage of such jaw grippers of loaders is the vulnerability of the hydraulic cylinders for turning the upper jaw from falling logs from above when dismantling high stacks.

Known jaw grip loader, including the lower jaw, hinged on the loading equipment of the base chassis, the upper jaw, which is hinged to the lower jaw. The upper jaw is driven by hydraulic cylinders mounted on the lower jaw. A protection made in the form of a U-shaped frame is bolted to the lower jaw. The pipe connecting the two sidewalls of the frame passes over the rods of the hydraulic cylinders, completely protecting them from possible impacts of falling timber. The sidewalls are installed at an angle to the sole of the grip (see Pat. RF No. 39591, M. Cl. B 66 F 9/12, 10.08.2004, bull. No. 22).

The disadvantage of this loader's jaw grip is the low performance of the loader when dismantling high stacks, since additional steps are required to drop logs stuck on the frame.

The task to be solved by the utility model is to increase the productivity of the loader when dismantling high stacks by eliminating manipulations to dump logs that have fallen on the upper jaw.

To solve this problem, in the jaw gripper of the loader, including the lower jaw, made with the possibility of hinged fastening on the loading equipment of the base chassis, the upper jaw, which is hinged to the lower jaw, the upper jaw drive hydraulic cylinders mounted on the lower jaw, according to the utility model, on a convex part of the upper jaw is fixed with a transverse beam with teeth, and the teeth are directed forward along the loader.

A toothed crossbeam, mounted on the convex part of the upper jaw of the loader's jaw, stops the logs rolling along the upper jaw at the moment of separation of the upwardly turned grip with logs from the high stack. The teeth pointing forward in the direction of the loader prevent the log from rolling over the crossbeam. Since the transverse beam is fixed on the convex part of the upper jaw, when the grip is turned upwards, it is the highest grip element, which means that the stopped logs will roll down the upper jaw back into the stack due to their own gravity. At the same time, the loader driver does not need to take any additional actions to get rid of the logs that have fallen on the upper jaw. Thus, the productivity of the loader is increased when dismantling high stacks.

In FIG. 1 shows the jaw grip of a loader (turned up), side view, in Fig. 2 - also, top view.

The loader's jaw grip comprises a lower jaw 1 made with the possibility of hinged fastening on the loading equipment of the base chassis, an upper jaw 2 which is connected by hinges 3 to the lower jaw 1 , hydraulic cylinders 4 of the upper jaw drive 2 mounted on the lower jaw 1 , a transverse beam 5 fixed on the convex part of the upper jaw 2 , teeth 6 directed forward along the loader and located on the transverse beam 5 .

Jaw grip loader works as follows. In front of a stack of timber, the jaw gripper is turned down by a hydraulic cylinder mounted on loading equipment so that the sole of the lower jaw 1 is parallel to the ground, the gripper is lowered to the ground by the loading equipment, then the upper jaw 2 is opened by hydraulic cylinders 4 . With the movement of the base chassis, the sole of the lower jaw 1 is brought under the stack, the grab by the hydraulic cylinder installed on the loading equipment turns upwards, grabbing the logs with the sole of the lower jaw 1 . The upper jaw 2 is closed by hydraulic cylinders 4 , the grip with logs is lifted by the loading equipment. If a log rolls from the top of a high stack onto a closed upper jaw 2 , then this log is stopped by a transverse beam 5 fixed on the convex part of the upper jaw 2 , and the teeth 6 directed forward along the loader and located on the transverse beam 5 prevent the log from rolling over cross beam 5 . The log rolls into a pile due to its own gravity. The base chassis grab with logs moves to the vehicle.

The use of this loader jaw gripper will ensure safe (accident-free) dismantling of high stacks at logging sites and timber warehouses with high productivity of loading timber into vehicles.

Claims (1)

Loader jaw gripper, including a lower jaw articulated on the base chassis loading equipment, an upper jaw that is hinged to the lower jaw, upper jaw drive hydraulic cylinders mounted on the lower jaw, characterized in that a transverse beam with teeth, and the teeth are directed forward along the loader.

Images