SU1664264A1 - End brush - Google Patents

Abstract

The invention relates to tools for cleaning the surface. The purpose of the invention is to increase durability. The end-brush contains a core fixed in a housing, on which a wire pile and an outer ring are wound. On the outer end surface of the housing there is a groove in the shape of a spiral, the depth of which increases from the axis of the housing to its periphery. The core is a tape folded into a spiral in the shape of a groove. The belt is variable in width, increasing from the axis of the body to its periphery. The gap formed between the yoke and the last turn of the tape with pile is filled with a low-melting alloy. The core parameters are interconnected in the following relationship: H = H + L ₁ ^. TgΑ

L ₁ = ϕ (R ₂ - R ₁ ) N _in / B, where H is the maximum width of the tape, H is the minimum width of the tape, L ₁ is the length of the base of the tape, α is the tapered angle, R ₁ is the minimum distance from the axis the body to the outer surface of the first turn of the tape, R ₂ is the maximum distance from the axis of the body to the outer surface of the last turn of the tape, B is the width of the turn of the pile, N _in is the number of turns of the pile. 6 Il.

Description

The invention relates to tools for cleaning the surface.

The aim of the invention is to increase durability.

Figure 1 shows the brush section; FIG. 2 is a view A of FIG. one; in FIG. 3, the core with the wound pile is wound in the unfolded state prior to winding on the case; figure 4 - section bB in fig.Z; figure 5 - section bb In fig.Z; in Fig.6, the settlement of H-Gn in Fig.2.

The end brush comprises a housing 1 with a yoke 2. On the outer surface of the housing 1, a groove 3 is formed in the form of a spiral, for example a screw, the depth t of which increases from the axis of the housing 1 of the working surface 4 to its periphery. Mounted in a groove 3 core 5 wound on it

the wire pile 6 is identical to the said groove and is in the unfolded form (before assembly) the tape 7, which mates along the guides 8 with the strip 9 (Fig. 3). The tape has a lead-in part 10.

The upper (non-working) surface L of the tape 7 has a narrowing on the angle a, whose width h increases to H in a linear relationship and is determined by the following relationship

H h + Li tg a;

2

. JT (R2 -Ri)

where H is the maximum width of the tape; h - the minimum width of the tape; Li is the length of the base of the tape; a is the angle of tape narrowing;

0 o

YU

Ri is the minimum distance from the axis of the housing to the outer surface of the first turn of the tape;

R2 is the maximum distance from the body axis to the outer surface of the last turn of the tape;

b - the width of the turn of the pile; pi - the number of turns of the pile. The core 5 is fixed on the housing 1 and on the holder 2 with screws 11. The gap between the inner side surface of the holder 2 and the wire pile 6 is filled with a low-melting metal 12, for example tin or Wood alloy.

In the strip 9 there are technological holes 13.

The brush assembly is carried out as follows.

The wire is wound on the core 5, consisting of the tape 7 and the strip 9, mated along the guides 8. The winding is carried out with a row stacking in several layers,

Then the lead-in part 10 of the core 5 is secured with a screw 11 on the protrusion of the housing 1 and wound along the groove 3 through the helical spiral of the said housing 1. The elevation angle of the helical spiral is similar to the angle of the tapered tape 7. 1 and maintaining the free end of the core 5. After winding on the groove 3 of the housing 1 of the core 5, the sleeve 2 is put on it and fixed with screws 11 (FIG. 6b). The technological gap formed between the inner side surface of the sleeve 2 and the wire b, for ivayut molten metal, such as tin, zinc or Wood's alloy. After that, the end surface of the brush is machined on a grinding machine, cutting the wire pile, until the strip 9 is exposed. The strip 9 is removed (pulled out) from the core 9 from the core 5. After this operation, the brush is ready for operation.

In the design of the end brush, the rigidity of the wire pile decreases in linear dependence on the axis of rotation of the brush to the periphery due to the length of the pile,

increasing to the periphery of the brush, which ensures uniform impact of all the wires of the pile on the surface to be machined. The brush works both in the stripping mode and in the cutting mode with removal

metal layer

Claims (1)

The invention of the Tortsov brush comprising a core fixed in the body, carrying a wire pile which has been wound on it, and the yoke, which is made in order to increase durability, has a groove in the shape of a helix, for example a screw, the depth of which increases from the axis of the body to its periphery, and the core is a tape, folded into a spiral in the form of a groove and placed in it with the formation of a gap between the yoke and the surface of the pile on the last outer turn, the tape is made variable in width, increasing from the axis of the body to its periphery, the parameters of the core are in the following relation: H h + C -tg "; .22 u - (-) -nb. where is the maximum width of the tape; h - the minimum width of the tape; U is the length of the base of the tape; a is the angle of tape narrowing; RI is the minimum distance from the axis of the housing to the outer surface of the first turn of the tape; 2 is the maximum distance from the axis of the housing to the outer surface of the last turn of the tape; b - the width of the turn of the pile; pi - the number of turns of the pile, and the gap is filled with low-melting metal. 12 C 1 Vida H5 73 Bb eight YYY