SU1632934A1 - Grip of jaw-type loader - Google Patents

Description

one

(21) 4666316/11

(22) 03/27/89

(46) 03/07/91. Bul Number 9

(71) Mari Polytechnic Institute here them. A.M.Gorky

(72) Yu.A.Koshkin and Ya.I.Shestakov (53) 621.868.274 (088.8)

(56) USSR Author's Certificate No. 831715, cl. In 66 F 2/06, 1981.

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(54) CAPTURE OF THE JAW LOADER

(57) The invention relates to machines for loading long loads onto rolling stock of roads and railways. The purpose of the invention is to increase reliability by placing

the center of the weight of the load but the axis of the loader. The jaw loader grip contains an arrow 1, on which canines 2 and 3 of the upper jaw are rigidly fixed, interconnected by a traverse 4 o. In the body of the boom 1 and canines 2 and 3 there is a shaft 5 with a drive 6 of its rotation. On the shaft 5, the tusks 7 and 8 are rigidly mounted and the tusk 9 is free to rotate around and longitudinally move along the axis of the shaft 5. The tusks 8 and 9 can be moved by the hydraulic cylinder 10 along the axis of the shaft 5. The tusks 8 and 9 are equipped with retractable teeth for insertion into the load , and fangs 2, 3 and 7 - with rollers „3 Il.

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The invention relates to machines for loading long loads on the rolling stock of roads and railways and can be used in the forest industry and forestry.

The purpose of the invention is to increase the reliability by placing the center of the load tin along the axis of the loader.

FIG. 1 shows the capture of the jaw loader, axonometrics; in fig. 2 is a view A of FIG. one; in FIG. 3, view B in FIG. one.

The jaw loader grip contains a boom 1, on which canines 2 and 3 of the upper jaw are rigidly fixed, connected to each other by a cross-beam 4. In the bodies of boom 1 and canines 2 and 3 there is a shaft 5 with a drive 6 of its rotation, which is made in the form for example, sprockets mounted on shaft 5, chains and hydraulic cylinders. The tangs 7 and 8 of the lower jaw are rigidly mounted on the shaft 5, and the tusk 9 is freely extended so that the latter can rotate around the axis of the shaft 5 and longitudinally move along the axis of the shaft 5 °. The tine 8 of the lower jaw also has the ability to move along the axis of the shaft 5 together with the tusk 9 by means of an actuator 10, for example, a hydraulic cylinder, the body of which is fixed on one of the extreme canines, and the stem is connected to canine 9. Canines 7 and the lower jaw are connected by traverses 11 Canines 8 and 9 do not have a rigid connection with traverses 4 and 11. Canines 8 and 9 are equipped with retractable teeth ying on a single base 13 which rests on a movable axis 14 of the lever 15. One arm 15 is provided with its rotation drive 16, for example a hydraulic cylinder. Extreme canines 2, 3 and 7 are equipped with rollers 17, free rotating on axles 18.

Capture jaw loader works as follows.

After the loader approaches the stack of trees (whips) by drive 6, the lower jaws 7 and 8 are lowered - the jaw loader's grip is opened. Operated by the boom 1 and the movement of the machine, the operator brings the canines 7 and 8 of the lower jaw under the stack. After this, the drive 6 lifts the canines 7 and 8, cuts off and grabs the pack for loading onto the rolling stock. Managed boom 1, the operator begins to raise the pack. When,

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when the center of mass of the pack is heavily biased toward canine 2 or 3, which may lead to a loss of machine stability, the operator drives the bases 13 by means of the actuator 16 and the teeth 12 are inserted into the bundle stems. Then the operator of the actuator 10 moves the pack in the right direction together with fangs 8 and 9, while the pack rolls on the rollers 17 of the canines 7, 2 and 3. Having placed the center of mass of the pack in the middle between the fangs 2 and 3, the operator immerses the pack on the rolling stock. Before the next pack is grasped, the teeth 12 with the bases 13 are sunk by the actuators 16 into the body of the canine 8 and the pillars 9.

The proposed constructive implementation of gripping the jaw loader allows, in case of an inaccurate arrangement of the center of mass of the pack between the extreme canines 2 and 3 of the gripper, by means of the actuator 16, to move the movable teeth 12 by capturing the pack and using the actuator 10 by moving the pack the transverse horizontal plane of the machine in the right direction, while the bundle rolls over the rollers 17 mounted on the extreme canines 2, 3 and 7, before placing its center of mass between the canines 2 and 3, which eliminates additional maneuver machinery and improves its efficiency.

Claims (1)

Invention Formula A jaw loader gripper containing a boom mounted on the chassis of the latter can be rotated in a vertical plane, fixed to the jaw fixed on the latter and rotatable in the vertical plane, each of which is made of at least three tusks interconnected by horizontal traverse arms and movable elements mounted on canines by means of lever systems with the possibility of advancing an additional drive forward, characterized in that, in order to increase reliability by placing the center of gravity of the load along the axle of the loader, the middle canines of each jaw are mounted so that they can be driven along the traverse indicated above, and the moving elements are made in the form of teeth and mounted on the middle canines. 15 2 MB