SU943191A1 - Gantry loader - Google Patents

Description

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The invention relates to a lifting vehicle, in particular to gantry loaders.

A portal loader is known, containing a frame consisting of beams interconnected by upper ends with the formation of a support platform on which the arm is fixed, and resting lower ends on wheel mounted racks connected in pairs by horizontal bars, one of which is mounted power plant and cab

However, this loader has insufficient productivity due to the fact that its load-carrying capacity is determined only by the gripping body of the manipulator. In addition, the placement of the cab on one of the sidewalls well below the arm reduces the visibility and adversely affects the performance of the loader.

The aim of the invention is to increase productivity.

This goal is achieved by the fact that the loader is equipped with a load carrier containing a platform mounted on the upper part of the beams and located between the other horizontal draft and supporting area 10, and the grippers installed at a distance from each other along the longitudinal axis of the platform and consisting from a fixed jaw fixed on the platform and a movable jaw mounted on the fixed jaw with the possibility of rotation from the power cylinder.

In addition, the cab is mounted on a support platform.

20

Claims (2)

FIG. 1 shows a portal loader, side view; in fig. 2 the same, top view; in fig. 3 - the same, front view. The gantry loader contains a frame consisting of beams 1 interconnected by upper ends 2 to form a support platform 3. A ground circle is mounted on the platform, on which bracket 5 and cab 6 are mounted. The track is shifted to the left relative to bracket 5. The lower end of the boom 7 by means of the hinge 8 is attached to the bracket 5. The middle part of the arrow 7 is connected to the platform 3 by means of the first pair of power cylinders 9 and the middle part of the arm 11 is connected to the upper end of the boom using the hinge 10, the inside part is connected and with the boom by means of a second pair of power cylinders 12. At the outer end of the arm 11 a two-jaw gripping jaw body 13 is suspended. The jaw 13 is driven by a third pair of power cylinders 14. The lower ends 15 of the frame beams 1 rest on the uprights 16 connected in pairs by horizontal weights 17, on one of which is mounted loader-18 power installation. On the side of the frame opposite to the cab 6 and the power plant 18, the drive is mounted, made in the form of a platform 19. The platform is located parallel to horizontal tam 17 and mounted on the beams of the frame 1. 41a, the grips are located at a distance from each other along its longitudinal axis. Each gripper consists of a fixed jaw 20 fixed on the platform 19 and a movable jaw 21 moved by the power cylinder 22. The power cylinders 22 of the outer grippers are mounted on brackets 23 attached to the upper ends of the beams and to the platform 19, and the power cylinders 22 of the middle grippers are mounted on the specified ends of the frame beams. When the gantry loader works, I will affect the control systems of the power cylinders 9 ne. the boom-sketches, power cylinders 11 for moving the arm and power cylinders 1 for moving the jaws 13 of the load-gripping organ capture a pack of lengthy cargo, mainly timber, then affecting said control systems, load the pack of load into the hopper, 1414 the jaws of the grips of which are previously discharged power cylinders 22 to the open position. The manipulator then releases the load and is retracted, and the movable jaws 21 of the claws are moved by the force cylinders 22 to the closed position. Then, acting on the said manipulator power cylinders, one more pack of cargo is seized in the jaw 13 of the load gripping organ. This load is lifted to the required height, and the loader can move, simultaneously carrying two packs of cargo, one of which is in the hopper and the other in the jaw of the load gripping body. Due to the fact that the portal loader is equipped with a cargo storage device, the load on the corresponding side of the loader increases, that in. In general, taking into account the placement of the cab and the power plant from the side of the opposite side, leads to a more uniform loading of the wheels on both sides of the loader, improving its stability, etc. And besides, the presence of the accumulator significantly (almost more than twice) provides an increase in the carrying capacity and, ultimately, the performance of the loader. The latter is also significantly affected by improved visibility, determined by the described cabin layout, which is located at the very top of the loader. Due to the fact that the cabin is shifted forward and to the left, it provides a good overview for the operator both when loading cargo into the hopper, and when it is seized and transported. The annual economic effect from the introduction of the proposed loader is 61 ths. rub. Claim 1. Gantry loader comprising a frame consisting of beams interconnected by upper ends with the formation of a support platform on which the manipulator is fixed, and resting the lower ends on racks mounted on wheels connected in pairs by horizontal drafts on one of which the power plant is mounted, and the cabin, in order to improve performance, it is equipped with a cargo storage unit containing a platform mounted on the top of the beams and located between each other horizontal thrust and support platform, and claws mounted at a distance from each other along the longitudinal axis of the platform and consisting of a fixed jaw fixed on the platform. and a movable jaw mounted on a fixed jaw with the possibility of rotation from the power cylinder. 2. A loader according to claim 1, in accordance with clause 1, in that the cab is mounted on a supporting platform. ; Sources of information taken into account in the examination 1. USSR author's certificate for application ff 27932З + Х 1, cl. In 66F 9/00, 30.12.80. ;:; : - f; :: f-iV -.i; v:: o ::; e ;:: -v -7-: -. / Fig.