SU1149931A1 - Cylindrical brush - Google Patents

Abstract

1. CYLINDRICAL BRUSH, containing mounted on the shaft between the flanges, one of which is movably mounted, p. a gap with respect to the shaft, pads with cleaning elements, characterized in that, in order to increase durability and quality of cleaning, the flange 1, one of which is movably, has protrusions located around its circumference, and the pads at their ends have longitudinal grooves for placement of high points with the possibility of their movement along the grooves, and the lugs of the protrusions in the slots of the pads, while the Blocks are made of rigid material, d the movable flange is installed with the possibility of rotation and fixation of the shaft axis.

Description

i The invention relates to tools intended for cleaning, finishing and decorating metal surfaces. A cylindrical brush is known that contains fasteners fixed on the shaft between the flanges, one of which is movable, with a clearance relative to the shaft. However, during operation of the known brush, unequal wear of the cleaning elements is observed. 5 of them that are located on the periphery wear out faster because there are fewer items. therefore, their bending resistance is less. As a result, the cleaning elements are unevenly worn out, which, in turn, leads to uneven removal of metal from the treated surface. In addition, the design of the well-known brush due to the non-rigidity of the pads excludes surface treatment of parts with large tensions. The purpose of the invention is to increase the quality and quality of cleaning. The goal is achieved by the fact that in a cylindrical brush containing flanges fixed on the shaft, one of which is movably installed, with a gap relative to the shaft, the pads with cleaning elements, flanges one of which is movable, have a protrusion around them. the pads at their ends are oblong grooves for placing the protrusions with the possibility of their movement along the grooves, and the clamps of the protrusions in the grooves of the pads, while the pads are made of rigid material and the underlying flange is installed with and relatively rotating the locking shaft. FIG. 1 shows a cylindrical brush, general view ;; in fig. 2-4 options for arranging cleaning elements, depending on the angle of development of the pad; in fig. 5 is a scheme for obtaining the working surfaces of the cheek. The cylindrical brush contains fastened on the shaft 1 between the flanges 2, one of which is movable, with a gap relative to 11 of the shaft 1, pads 3 with cleaning elements 4. The flanges 2 have projections 5 located along their circumference, and the pads 3 at their ends are longitudinal grooves 6 for placing the protrusions 5 with the possibility of their movement along the grooves 6, and the latches 7 of the projections 5 in the grooves 6 of the shoe 3. The pads 3 are made of rigid material, and the flange 2 is mounted for rotation and fixation relative to the axis of the shaft 1, for example, by means of screws 8. Pr and manufacturing a cylindrical brush pad 3 with cleaning elements initially parallel to the axis of rotation of the brush. Then, one of the flanges of the brush is turned and strengthened so that the angle of the broomstick with the axis of the brush and the pads is about 30. In this position, the surface of the cleaning elements is grinded and shaped into a cylinder, the length of the cleaning elements is different and decreases smoothly from the middle. brushes to its ends. The brush surface along its axis also has a different length of cleaning elements due to the fact that the pads with cleaning elements form a linear surface such as a single-cavity paraboloid of rotation. Thus, the brush obtained after grinding allows, by increasing the angle between its axis of rotation and the pads, to reduce the radius of the neck r (Fig. 5) and to obtain the concave surface of the working part of the brush. As the angle decreases, the axis of rotation of the brush and the pads increases the radius of the neck r y1 and, since the outer surface of the brush initially had the shape of a cylinder, the middle part of the working surface becomes convex. compared with face and parts. Cylinder brush works as follows. By mutual angular rotation of the flanges 2-, the required shape of the cleaning elements 4 is established. Then (receiving rotation from the drive) the cylindrical brush, when the cleaning elements 4 contact the surface of the workpiece, processes its surface. The proposed brush possesses (as compared with the existing ones) a higher working resource, due to the increase in the rigidity of the cleaning elements at the brush flanges and the decrease in the range of vibrations of the cleaning elements 1 1А9931 elements. In addition, the cylindrical brush (preserving its versatility) has an advantage in the operations of cleaning the surface of parts from burr and scale and rough grinding due to the presence of rigid blocks in the design.

FIG. 2

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Claims (1)

1. CYLINDRICAL BRUSH containing fixed on the shaft between the flanges, one of which is mounted movably, p. clearance relative to the shaft, pads with cleaning elements, characterized in that, in order to increase durability and quality of cleaning, the flanges, one of which is mounted movably, have protrusions located around their circumference, and the pads at their ends have longitudinal grooves for accommodating the protrusions with the possibility of their movement along the grooves, and the tabs of the protrusions in the grooves of the pads, while the pads are made of hard material, d movable Q flange is mounted with the possibility of rotation and fixing relative to the axis of the shaft. they have less bending. The creep elements are uneven, which in turn leads to uneven elimination of surface parts with large interference fit25 of the invention - increasing the proportion of