RU2243650C1 - Slewing circle of logger manipulator - Google Patents

Abstract

FIELD: timber industry, forestry.

SUBSTANCE: invention relates to manipulator-type loggers, namely, to their slewing circles. In proposed slewing circuit with inclined design leveling device turntable is mounted on frame of self-propelled chassis for tilting forward and backward under action of hydraulic cylinders which are installed in X-like manner, viewing from side, and are hinge-connected to leveling device. Front and rear surfaces of leveling device in contact with frame are made to the same radius of turning as inner surfaces of frame. Stops are rigidly installed on upper surface of frame before and after leveling device. Rear surface of front stop and front surface of rear stop form angles of 90^o plus angle of tilting of leveling device with upper horizontal surface of frame. Proposed design of slewing circle makes it possible to tilt turntable forward and backward, and X-shape arrangement of hydraulic cylinders provides reduction of height of device and contact of leveling device and frame over surface improves reliability.

EFFECT: reduced height of device, improved reliability in operation.

3 cl, 2 dwg

Description

The invention relates to technological equipment of manipulator-type forestry machines, namely to slewing devices, and can be used in the forest industry and forestry.

A rotary support device for a logging machine manipulator is known, including a rotary roller support, the lower fixed part of which is rigidly fixed to the frame of a self-propelled chassis, and a rotary platform is rigidly mounted on the upper movable part, on which the manipulator and the rotation mechanism of the rotary platform with the manipulator are mounted in a horizontal plane self-propelled chassis frames (Feller buncher LP-19. Kruglov BC, Barmon MA, Ermolyev VP, Korolev V.E., Popov BV - M .: Lesn. prom-st, 1982. - 288 p., See page 15, fig. 5, page 20, fig. 9, page 21, fig. 10 and page 33, fig. 19).

The known rotary support device of the manipulator of a forestry machine does not have a horizontal alignment mechanism.

Closest to the invention is a rotary support device of a logging machine manipulator, including a rotary roller support, the lower non-rotary part of which is rigidly fixed to the forward tilt structure of the turntable alignment device mounted on the frame of the self-propelled chassis, and the rotary platform is rigidly mounted on the upper rotary part which mounted the manipulator and the rotation mechanism of the turntable with the manipulator in a horizontal plane around a vertical th axis tilt mechanism tilts forward structure (avenue of the company "Timberjack". Feller bunchers being aligned with the upper structure 2618/2628. Specifications, see. Fig. on p. 3 and 4-row specification below on p. 4).

This rotary support device of the manipulator of the forestry machine has the ability to tilt the turntable with the manipulator around the transverse horizontal axis only forward, while when tilted, the vertical load is perceived only by the transverse horizontal axis and hydraulic cylinders of the tilt mechanism.

To eliminate these shortcomings in the proposed design of the rotary support device of the logging machine manipulator, which includes a rotary roller support, the lower non-rotary part of which is rigidly fixed to the tilt structure of the alignment device of the rotary platform mounted on the frame of the self-propelled chassis, and the rotary platform is rigidly mounted on the upper rotary part, on which the manipulator and the rotation mechanism of the turntable with the manipulator are mounted in the horizontal plane around the vertical axis, the tilt mechanism of the tiltable structure, the tiltable structure of the leveling device of the turntable is mounted with the possibility of tilting it forward and backward, for example, hydraulic cylinders, which are mounted X-shaped when viewed from the side and at one end are pivotally mounted on the frame of the self-propelled chassis, and the other ends are pivotally connected to the tiltable structure, the front and rear surfaces of which are in contact with the frame of the self-propelled chassis, are made along of the supported structure, while on the upper surface of the self-propelled chassis frame front and rear of the tilted structure, stops are fixed rigidly in contact with the tilted structure when the latter is tilted, the distance between the stops is equal to the length of the tilted structure, and the rear surface of the front stop and the front rear stop form with the upper horizontal surface frames, angles equal to 90 ° plus the angle of inclination of the inclined structure.

The proposed design of the support-rotary device of the manipulator of the forestry machine allows you to align the rotary platform by tilting it forward and backward, which extends the capabilities of the machine, vertical loads when tilted are perceived not by the axis, but by the surfaces, which increases reliability, and the installation of hydraulic cylinders in an X-shape reduces the center of gravity of the rotary platform .

In the patent and scientific and technical literature, such a design of the slewing ring of the manipulator of the logging machine was not found.

Figure 1 shows the rotary support device of the manipulator of a forestry machine, side view, with a local section; figure 2 is the same, a view along arrow A in figure 1.

The rotary support device of the logging machine manipulator includes a rotary roller support, the lower fixed part 1 of which is rigidly fixed to the tilt structure 2 of the turntable leveling device 3. On the upper rotary part 4 of the rotary roller support, a rotary platform 3 is mounted on which the manipulator is mounted, technological equipment and a rotation mechanism of the turntable (not shown). The front surfaces 5 and rear 6 of the tiltable structure 2 in contact with the same surfaces of the frame 7 of the self-propelled chassis are made curved along the radius of rotation of the structure 2 when it is tilted forward or backward. The tilt mechanism of the tiltable structure 2 includes hydraulic cylinders 8 and 9, the bodies pivotally connected through the axles 10 and 11 to the frame 7 of the self-propelled chassis, and the rods through the axes 12 and 13 with the tiltable structure 2. When viewed from the side, the hydraulic cylinders 8 and 9 are installed in an X-shape. Above, on the frame 7 of the self-propelled chassis, the stops 14 and 15 are rigidly mounted in front of and behind the tiltable structure 2.

The rotary support device of the manipulator of the forestry machine operates as follows.

When the machine is operating on a horizontal section, cylinders 8 and 9 are set to the “locked” position, the tiltable structure 2 contacts (rests) with the frame 7 of the self-propelled chassis on surfaces 5 and 6 and the horizontal plane. In this case, the rotary platform 3 together with the upper rotary part 4 is rotated relative to the lower stationary part 1. When working on a slope or slant to tilt the tilt structure 2, and hence the rotary platform 3 relative to the frame 7 of the self-propelled chassis, the hydraulic cylinders 8 are turned on to push the rod when “Locked” hydraulic cylinders 9 or hydraulic cylinders 9 with “locked” hydraulic cylinders 8. Under the action of the force of hydraulic cylinders 8, the tiltable structure 2 rotates around axes 10, hydraulic cylinders 9 around axes 11. When tilt angles (more than 10 ... 12 °) of the tilt structure 2 during operation of the hydraulic cylinders 8, the hydraulic cylinders 9 can be set to the “floating” position, during the operation of the hydraulic cylinders 9 - the hydraulic cylinders 8. In this case, when the contact of the structure 2 with the frame 7 the surfaces 5 and 6 to prevent longitudinal displacement of the structure 2 relative to the frame 7 on the last mounted stops 14 and 15, while the rear surface of the front stop 14 and the front rear stop 15 form angles equal to 90 ° with the upper horizontal surface of the frame 7 plus an angle of inclination a bosom of an inclined structure 2.

The proposed design of the support-rotary device of the manipulator of the forestry machine allows you to tilt the turntable forward and backward, which extends the capabilities of the machine, the perception of vertical loads by surfaces increases reliability, eliminates the possibility of the tilting of the turntable when the hydraulic cylinders fail.

Claims (3)

1. The rotary support device of the logging machine manipulator, including the rotary roller support, the lower non-rotary part of which is rigidly fixed to the tilt structure of the turntable leveling device mounted on the frame of the self-propelled chassis, and the rotary platform is rigidly mounted on the upper rotary part of the rotary roller support, on which mounted manipulator and rotation mechanism of the turntable with the manipulator in a horizontal plane around a vertical axis, the mechanism on bent of an inclined structure, characterized in that the inclined structure of the leveling device of the turntable is mounted with the possibility of tilting it forward and backward, for example, hydraulic cylinders, which are mounted X-shaped when viewed from the side, and pivotally fixed at one end to the frame of the self-propelled chassis, and the other ends are pivotally connected to the tilted structure, the front and rear surfaces of which are in contact with the frame of the self-propelled chassis, are made along the radii of rotation of the tilted structure uktsii, wherein the inner surface of the frame of the motor vehicle in contact with the front and rear surfaces of the tilting structure are formed on the same radii. 2. The device according to claim 1, characterized in that on the upper surface of the frame of the self-propelled chassis in front and behind the tilt structure, stops are fixed rigidly in contact with the tilt structure when the latter is tilted. 3. The device according to claim 2, characterized in that the distance between the stops is equal to the length of the tilt structure, while the rear surface of the front stop and the front - rear stop form angles equal to 90 ° plus the angle of inclination of the tilt structure with the upper horizontal surface of the frame.

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