SU1301680A1 - Petal-shaped abrasive wheel - Google Patents

Abstract

The invention relates to the manufacture of a petal abrasive tool. The purpose of the present invention is to reduce the consumption of abrasive cloth in the manufacture of petal abrasive tools and increase the density of its packaging. In the grooves of the comb rim of the hub 1, abrasives 2 and 3 are installed in several pieces along the height of the circle. The number of petals in adjacent grooves ot HuaeTCH per unit, while the petals in adjacent grooves are installed with overlapping joints. 2 Il. 0.5V ff, 5S SP (L CCR J V

Description

The invention relates to the manufacture of a petal abrasive tool.

The aim of the invention is to reduce the consumption of abrasive cloth in the manufacture of petal abrasive tools and increase the density of its packaging.

FIG. 1 shows the described circle; in fig. 2 is a view A of FIG. one.

The flap disc contains a hub 1 with a comb rim and a central bore. Petals 2 and 3, made, for example, of an abrasive cloth, are assembled into the grooves of the hub rim when assembling the tool. Petals 2 and 3 are installed in grooves several pieces along the tool height and their number in adjacent grooves differs by one. A lid 4 with a hole in the center for the rod keeps the combs of the hub 1 from radial, and the petals 2 and 3 from axial mixing. The connecting rod 5 and the nut 6 unite all parts of the tool into a whole.

Petal width in adjacent slots

is „

bi ---,

, (l-1) lg

AT

where bi and b2 are the widths of petals 2 and 3, respectively, in adjacent slots; B - tool height; p and (p-1) - the number of petals in height

those in adjacent grooves.

The use of the proposed flap abrasive wheel will reduce the consumption of the grinding skin on average one petal along its length by an amount equal to

(B) + (B

B h

TFT)

and the number of petals in a circle, which ultimately determines its density, increases by an amount T2 () 2 (X.- | -)

P45

45

internal radius of the comb

that hub rim; the thickness of the lock is four times the thickness of the sanding pelt;

respectively, the length of the petal lock of the proposed circle and known.

For example, for a petal abrasive wheel with an Onar outer diameter. 300 mm, the internal radius of the comb rim of the RCT hub is 100 mm, the height of the circle is VO, mm and the thickness of the sandpaper is 5 0.5 mm for a known wheel and with the same parameters and n 5 for the proposed one; the famous circle has a castle length

- 50 (mm), the length of the billet petal

Gzag 2 (- - RCT) B + 2,200 (mm),

ten

5 number of petals in a circle

2n (RcT- -I-). „,, 1 157 (pcs);

t

and the proposed circle has a lock length

h, L 10 (mm),

22

the length of the workpiece petal zag 2 (RcT9) -ffcp 111,25 (mm),

where L is the average width of the petals, is equal to

  (mm) number of petals in a circle

sh

2n (RcT- |) L 5

 282 (pieces).

Therefore, the length of the workpiece petal 35 in the proposed abrasive wheel, compared with the known, reduced, and the number of petals increased.

Claims (1)

Invention Formula A petal abrasive wheel, made in the form of a hub with a comb rim, in the grooves of which abrasive petals are placed, in the root zone of each of which a lock is formed, distinguished by that, in order to reduce the consumption of abrasive cloth and increase the packing density, a group of abrasive blades set end-to-end is placed in each of the grooves, while the number of abrasive blades located in adjacent grooves differs by unit, and they are installed with overlapping joint. Vida Rig. 2