RU168570U1 - ROTARY BRUSH CUTTER - Google Patents

Abstract

The device relates to the forestry industry and is used as a means for clearing the lines of power lines from tree-shrubby vegetation, when caring for ordinary forest crops at clearings, for removing tree shoots at oil and gas pipelines, and for clearing over-cultivated areas for land use in agriculture. The technical result achieved by the proposed device is the expansion of technological capabilities and work efficiency by increasing the quality and degree of grinding. A technical result is achieved due to the fact that in the frame structure of the hopper from the side of the back inclined wall, each cutting body is equipped with special contours with opposing plates.

Description

The device relates to the forestry industry and is used as a means for clearing the lines of power lines from tree-shrubby vegetation, when caring for ordinary forest crops at clearings, for removing tree shoots at oil and gas pipelines, and for clearing over-cultivated areas for land use in agriculture.

A device [1] is known, including a frame with upper and lower transverse beams hinged on a self-propelled chassis, T-brackets on which cutting bodies with actuators are mounted, fixed hinges with which T-brackets are mounted on the upper transverse beam of the frame . Between the upper transverse beam and the lower transverse beam, a transverse inclined baffle wall and longitudinal side walls are rigidly attached, forming a working hopper for chopping cut tree-shrub vegetation.

However, insufficient rigidity of the fastening of the cutting organs inside the frame structure and too large parts of the wood left after clearing do not allow the wide use of this device.

It is also known a device [2], mounted on the rear hitch of a self-propelled chassis and consisting of a section pivotally connected to the frame, on which the working body, its drive and pusher are located. The working body of the device is made in the form of a disk with cutting elements pivotally mounted on its peripheral part. The pusher is made in the form of an arcuate bracket with a curvature of the frontal part equal to the diameter of the disc of the working body.

The disadvantage of this device is the limited technological capabilities, consisting in the fact that the device does not provide shredding of cut tree and shrubbery vegetation. For the implementation of grinding would require the installation of additional grinding equipment, which would lead to a complication of the design, increase metal consumption and reduce the reliability of this device.

The closest of the analogues is the device [3], which is taken as a prototype. This device includes a frame structure mounted on a self-propelled chassis by means of a hitch, made in the form of a hopper, consisting of upper and lower transverse beams, a rear inclined wall, longitudinal side walls and an upper hinged lid, cutting bodies with drives fixed with T-shaped brackets and adjustable traction, providing additional rigidity to the fastening of the cutting organs, as well as a bending device located above the cutting organs.

In this case, insufficient grinding of cut vegetation reduces the efficiency of using this device design.

The technical result achieved by the proposed device is the expansion of technological capabilities and operational efficiency by increasing the quality and degree of grinding.

The technical result is achieved due to the fact that in the frame structure of the hopper from the side of the back inclined wall, each cutting body is equipped with special contours with opposing plates.

In FIG. 1 shows a rotary brush cutter, section AA in FIG. 2; in FIG. 2 - section BB in FIG. one.

The rotary brush cutter includes a frame structure 2 mounted on a self-propelled chassis 1 with walls forming a working hopper for cutting and grinding wood and shrub vegetation. Cross beams 3 and 4 form the frame of the rear wall 5 with its inclination to the horizontal. With the transverse beams 3 and 4, the longitudinal side walls 6 of the frame structure are rigidly connected. The top hopper is closed by a hinged lid 7.

Inside the hopper are placed the cutting bodies 8 with cutting knives 9. The cutting bodies are mounted together with the drives on the mounting transverse beam 10. The mounting beam 10 is removable and fixed between the longitudinal side walls 6 parallel to the transverse beams 3 and 4. For mounting the cutting bodies with the drives, T -shaped brackets 11. On the vertical shelf of the T-shaped bracket 11, the bearing assembly of the cutting body with the shaft 12 and the coupling 13 is mounted. On the horizontal shelf of the T-shaped bracket 11, the drive motor 14 and the fixed hinged joint 15, with the help of which the cutting body is fixed on the mounting beam 10.

Another hinge 16 is installed on the vertical shelf of the T-shaped bracket 11, with the help of which the T-shaped bracket 11 is additionally attached to the frame structure 2 by means of an adjustable link 17 and another hinge 18 mounted on the rear wall.

Above the cutting bodies 8, a bending device 19 is installed, the posts 20 and 21 of which are supported by a frame structure. Brackets 22, 23 and a hinge 24 are mounted on the rear wall of the frame structure 2 for hanging on a self-propelled chassis 1. Each cutting body 8 has a lower protective disk 25. On the side of the back inclined wall, each cutting organ of the brush cutter is equipped with special contours 26 with opposing plates 27.

Rotary brush cutter works as follows. When the drive motors 14 are turned on, the cutting bodies 8 with the cutting knives 9 receive rotation. When the rotary brush cutter is pushed onto the self-propelled chassis 1, the trunks of woody-shrubby vegetation are pulled by a bending device 19, cut off with knives 9 and pre-chopped with the same knives. Next, the cut vegetation enters the inner part of the hopper to the back inclined wall 5, where special contours 26 with opposing plates 27 are mounted. In this zone of the hopper, fragments of the cut tree-shrub vegetation are secondary crushed due to repeated exposure of cutting knives 9 with wood and with opposing plates 27.

Bibliographic data.

1. Patent RU 2064242, A01G 23/02, A01G 23/08, publ. July 27, 1996

2. Patent RU 2153797, A01G 23/02, A01G 23/06, A01G 23/08, publ. 08/10/2000

3. Patent RU 110913, A01G 23, publ. 12/10/2011

Claims (1)

A rotary brush cutter, including a frame structure mounted on a self-propelled chassis using a hitch, made in the form of a hopper consisting of a rear inclined wall, longitudinal side walls and an upper hinged cover, inside of which are placed cutting bodies with drives, fixed with T-shaped brackets and adjustable traction , and a bending device located above the cutting organs, characterized in that in the frame structure of the hopper from the side of the back inclined wall, each cutting organ of the rotary brush cutter is supplied with n contours with opposing plates.

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