SU848198A1

SU848198A1 - Method of working in rolls flat round saws

Info

Publication number: SU848198A1
Application number: SU792793921A
Authority: SU
Inventors: Александр Иванович Агапов
Original assignee: Кировский Политехнический Институт
Priority date: 1979-07-09
Filing date: 1979-07-09
Publication date: 1981-07-23

Description

Изобретение относится к металлообработке .The invention relates to metalworking.

Известен способ вальцевания дисковых пил путем создания напряжен- ного состояния диска пилы по его ⁵ концентрическим окружностям fl].A known method of rolling saw blades by creating a stress state of the saw blade along its ⁵ concentric circles fl].

Недостатком этого способа является то,что он не обеспечивает получение оптимальных напряжений в диске пилы,.так как выбор радиуса следа , вальцевания не обуславливается индивидуальными параметрами напряженного состояния диска пилы до вальцевания.The disadvantage of this method is that it does not provide optimal stresses in the saw blade, since the choice of the radius of the trace, rolling is not determined by the individual parameters of the stress state of the saw blade before rolling.

Цель изобретения - повипение прочности, устойчивости и изгибной жест- 15 кости диска круглой пилы.The purpose of the invention is the boil of strength, stability and bending stiffness 15 of the circular saw blade.

Поставленная цель достигается тем, что следы вальцевания наносят по участкам наибольшей жесткости, определяемым формой колебаний диска пи- 20 лы.This goal is achieved by the fact that traces of rolling are applied to the areas of greatest rigidity, determined by the shape of the oscillations of the saw blade.

На фиг. 1, 2 и 3 изображены формы колебаний диска пилы, определяемые фигурами Хладни и реализующие предлагаемый способ.In FIG. 1, 2 and 3 depict the vibration forms of the saw blade, defined by the figures of Hladni and implementing the proposed method.

На фиг, 1 изображен диск пилы, имеющий форму колебаний с узловыми -’окружностями, на фиг. 3 - диск пилы, имеющий форму колебаний с узловыми диаметрами и окружностями. 30In FIG. 1, a saw blade is shown in the form of vibrations with nodal -’-circles, in FIG. 3 - saw blade, having the form of vibrations with nodal diameters and circles. thirty

Пила состоит из диска 1 с узловыми диаметрами 2, причем следы 3 вальцевания наносят в радиальном направлении по узлам, окружностей 4, по которым наносят следы 5 вальцевания.The saw consists of a disk 1 with nodal diameters 2, and traces of rolling 3 are applied in the radial direction along the nodes, circles 4, on which traces of rolling 5 are applied.

Когда диск не имеет узловых диаметров и окружностей, следа вальцевания нано.сят в радиальном направлении в зоне 0,4-0,6 от радиуса пилы, причем число следов вальцевания должно быть не менее 6.When the disk does not have nodal diameters and circles, traces of rolling nano.sat in a radial direction in the zone of 0.4-0.6 from the radius of the saw, and the number of traces of rolling should be at least 6.

Предлагаемый способ обеспечивает повышение прочности,устойчивости и изгибной жесткости диска за счет равномерного распределения напряжений в нем.The proposed method provides increased strength, stability and bending stiffness of the disk due to the uniform distribution of stresses in it.

Claims

The invention relates to metal working. There is a method of rolling circular saws by creating a stress state of the saw blade along its concentric circumferences. The disadvantage of this method is that it does not provide optimal stresses in the saw blade, as the choice of the radius of the rolling cutter is not caused by indie parameters of pressure. The condition of the saw blade prior to milling. The purpose of the invention is to increase the protrusion, stability and bending stiffness of the circular saw blade. The goal is achieved by the fact that traces of milling are applied over the areas of greatest rigidity, determined by the form of oscillations of the saw blade. FIG. 1, 2 and 3 depict forms of oscillating saw blade, defined by figures of Cold and implementing the proposed method. in fig. 1 shows a saw blade having an oscillation shape with nodal circles; FIG. 3 - oscillating disk with oscillatory shape with knot diameters and circles. The saw consists of a disk 1 with knots of diameters 2, with traces of 3 vschtsevany put in the radial direction along the nodes, circles 4, on which put traces of 5 rolling. When the disk does not have nodal diameters and circumferences, the traces of rolling should be radially in the area of 0.4-0.6 from the saw radius, and the number of tracks of rolling should be at least 6. The proposed method provides increased strength, stability and flexural rigidity of the disk due to equal Mejioro distribution of stresses in it. The invention of the method of rolling flat circular saws, including the application of traces of rolling on the saw blade, characterized in that, in order to increase the strength, stability and bending stiffness of the saw blade, the tracks of rolling are applied to the areas of greatest stiffness determined by the form of vibration saws. Sources of information taken into account during the examination 1. Stakhneva Yu.M. Stability and oscillations of flat circular saws. M., Lesna industry, 1977.