SU979108A1

SU979108A1 - Blade shaft for working wood

Info

Publication number: SU979108A1
Application number: SU802934208A
Authority: SU
Inventors: Александр Иванович Агапов; Константин Михайлович Вандерер
Original assignee: Кировский Политехнический Институт
Priority date: 1980-05-28
Filing date: 1980-05-28
Publication date: 1982-12-07

Description

(54) НОЖЕВОЙ ВАЛ ДЛЯ ОБРАБОТКИ ДРЕВЕСИНЫ(54) KNIFE SHAFT FOR WOOD PROCESSING

Изобретение относитс к дереворежущим инструментам и может быть использовано на станках фрезерной группы при обработке древесины и древесных материалов.The invention relates to wood cutting tools and can be used on milling machines in the processing of wood and wood materials.

Известен ножевой вал дл обработки древесины, содержащий корпус с пазами, установленные в них ножи, стружколоматели и фланцы 1 .Known cutter shaft for processing wood, comprising a housing with grooves, knives, chip breakers and flanges 1 installed in them.

Известен также ножевой вал дл обработки древесины, содержащий корпус с пазами, в которых установлены плавающие плоские ножи, жестко соединенные со стружколомател ми,снабженными выступами, фланцы и крепежные элементы С 2 3.Also known is a cutter shaft for processing wood, comprising a housing with grooves in which floating flat knives are mounted, rigidly connected to chipbreakers fitted with protrusions, flanges and fasteners C 2 3.

Недостатками известных ножевых валов вл ютс : сложность конструкции , трудоёмкЬсть изготовлени стружколомателей , и корпуса с фланцами, а также невозможность установки ножей и стружколомателей большой длины.The disadvantages of the known knife shafts are: the complexity of the design, the laboriousness of making chip breakers, and the housing with flanges, as well as the impossibility of installing knives and chip breakers of great length.

Цель изобретени - упрощение конструкции и улучшение технологических параметров, а также уменьшение вибрации ножей при пуске и остановке вала.The purpose of the invention is to simplify the design and improve the technological parameters, as well as to reduce the vibration of the blades when starting and stopping the shaft.

Поставленна цель достигаетс тем, что стружколоматели имеют выступы по длине, а фланцы - отверсти под выстуПы стружколомателей и снабжены центрирующим буртиком, причем вал выполнен с кольцевой проточкой дл центрирующих буртиков. Выступы стружколомателей и отверсти во фланцах выполнены в виде усеченной пиралтды.The goal is achieved by the fact that the chip breakers have protrusions along the length, and the flanges have holes for the breakers and are provided with a centering shoulder, the shaft being made with an annular groove for the centering shoulders. The protrusions of the chip breakers and the holes in the flanges are made in the form of a truncated pyraltdy.

На фиг. 1 - ножевой вал с разре-« зом; на фиг. 2 - ножевой вал, вид в плане; на фиг. 3 - продольный разрез по фланцу и стружколомателю; на FIG. 1 - knife shaft with a cut; in fig. 2 - knife shaft, view in plan; in fig. 3 is a longitudinal section along the flange and chipbreaker; on

10 фиг. 4 - вид по стрелке А на фиг.3j на фр5Г. 5 - продольный разрез по фланцу и стружколомателю; на фиг. 6 - то же, вариант исполнени .10 of FIG. 4 is a view along arrow A in Fig. 3j at f5G. 5 is a longitudinal section along the flange and chipbreaker; in fig. 6 is the same as the embodiment.

Ножевой вал состоит из корпуса 1 The knife shaft consists of a housing 1

15 с пазами 2 пр моугольной формы, в которых размещены ножи 3 и стружколоматели 4, закрепленные между собой болтами 5. На стружколомателе 4 предусмотрены выступы по длине б. С двух 15 with grooves 2 of rectangular shape, in which knives 3 and chip breakers 4 are mounted, fixed between each other by bolts 5. On chip breaker 4, protrusions are provided along the length b. With two

Claims

The 20 sides of the blade shaft housing 1 are fitted with flanges 7 with holes 8 and a centering collar 9. The shaft housing 1 has conical centering grooves 10 under the flanges 9 on both sides. The flanges 7 are attached to the shaft housing 1 by bolts 11. Projections b in the chip makers 4 can be made in the form of a prism (Fig. 2) or in the form of a truncated pyramid with one or 30 two inclined edges to the base of the pyramid. If a truncated pyramid has an upper inclined face, then the chip breakers are based on the horizontal face of the truncated pyramid (Fig. 3) or on the base of the chipbreaker (Fig. 5). If in the truncated pyramid the oblique face is lower, then the chip breakers are based on the upper horizontal face of this pyramid (Fig. 6), the projections b and the holes 8 in the flanges 7 can be made in the form of a cylinder or a truncated cone. The knife shaft is prepared and operates as follows. The knives 3 are firmly connected by bolts 5 to the body of the chipbreaker 4, having protrusions 6 along the length, and inserted into the groove 2 in the radial direction of the blade shaft. The tabs 6 of the chip breakers 4 are aligned with the holes of the 8 flanges 7. After all the knives 3 have been machined with the chip makers 4, the flange 7 is fastened to the shaft housing with bolts 11. In this case, the centering shoulder 9 of the flange 7 enters the center hole of the housing 10 of the shaft blade 1. When the blade shaft is rotated together with the chipmakers 4 and the bolts 5 under the action of centrifugal forces, they are pressed by the projections b of the chip breakers 4 of the upper surface of the opening 8 of the flange 7 and thereby fix (comfort at this level. All the blades of the knives 3 will be located around the cutting circumference Accuracy. In order to increase the accuracy of the installation of blades for knives around the cutting circumference, a centering collar 9 is provided in the flanges 7. This is installed in the corresponding groove 10 in the shaft housing. The projections of the chip breakers 4 and the flange The 7 with holes 8 secure the knives 3 from lateral and radial displacement. Joining the knife 3 with the chip breaker 4 increases their weight and, thus, increases their dynamic cutting ability. The proposed knife shaft is structurally simpler than the prototype. The invention will allow to design a shaft of greater length and smaller diameter The invention claims 1. A plow shaft for processing wood /, comprising a housing with grooves in which floating flat knives are mounted, rigidly connected to chipbreakers with projections fl Poles and fasteners, characterized in that, with the goal of structural design and improvement of technological parameters, the chip breakers have a long out, and the flash point has holes for the breakers' ledges and is provided with a centering shoulder, and the shaft is made with an annular groove for centering shoulders . 2, The blade shaft according to claim 1, characterized in that, in order to reduce the vibration of the knives when starting and stopping the shaft, the protrusions of the rollers and openings 9 of the flanges are made in the form of a truncated pyramid. Sources of information taken into account in the examination 1. The author's certificate of the USSR 639703, cl. B 27 G 13/02, 1977.

2. USSR author's certificate 420452, class „In 27 G 13/02, 1979.

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