SU937860A1

SU937860A1 - Adjustable cam

Info

Publication number: SU937860A1
Application number: SU803222489A
Authority: SU
Inventors: Игорь Петрович Воробьев
Original assignee: За витель И. П. Воробьев
Priority date: 1980-12-24
Filing date: 1980-12-24
Publication date: 1982-06-23

Description

(5) РЕГУЛИРУЕМЫЙ КУЛАЧОК(5) ADJUSTABLE CAM

Изобретение относитс к машиностроению , а именно к регулируемым кулачкам.This invention relates to mechanical engineering, namely to adjustable cams.

Известен регулируемый кулачок, содержащий корпус, установленные в нем державки, св занные с регулировочными винтами, и гибкую ленту, же ,стко закрепленную в державках l 1.An adjustable cam is known, comprising a housing, tool holders mounted therein, associated with adjusting screws, and a flexible tape, which is fixed in the tool holders l 1.

Недостатком известного кулачка вл етс невысока точность установки профил вследствие жесткого креплени гибкой ленты.A disadvantage of the known cam is the low accuracy of the profile installation due to the rigid attachment of the flexible tape.

Наиболее близким к изобретению по технической сущности и достигаемому результату вл етс регулируемый кулачок, содержащий корпус, имеющий отверстиеПОД вал, выполненный в корпусе параллельно оси отверсти паз, регулировочный винт, св занный с корпусом, и представл ющий собой кольцо упругий профильный элемент, установленный в пазу корпуса с возможностью перемещени вдоль него сухарь , св занный с регулировочным винтом и взаимодействующий с упругим профильным элементом zj.The closest to the invention to the technical essence and the achieved result is an adjustable cam, comprising a housing, a shaft having a hole, a groove made in the housing parallel to the axis of the aperture opening, an adjusting screw associated with the housing, and an elastic profile element mounted in the groove the housing is movable along it a cracker associated with an adjusting screw and cooperating with an elastic profile element zj.

Недостатком известного кулачка вл етс его невысокий КПД вследствие неравномерного износа профильного элемента при работе кулачка, что приводит к искажению его профил .A disadvantage of the known cam is its low efficiency due to the uneven wear of the profile element during cam operation, which leads to a distortion of its profile.

Цель изобретени - повышение КПД.The purpose of the invention is to increase efficiency.

Указанна цель достигаетс тем, This goal is achieved by

Claims

to that in an adjustable cam comprising a housing having a shaft hole, made in the housing parallel to the axis of the screwdriver slot, an adjusting screw associated with the housing, and presenting a resilient profile element mounted in the housing groove with the ability to move the cracker along it associated with the adjusting screw and interacting with the elastic profile element, the ring is made of a composite length, and the cam is equipped with a g-element connecting the ring parts. 3 93 In FIG. 1 shows an adjustable cam section; in fig. 2 - sweep of the elastic profile element. The adjustable cam comprises a housing 1 having a shaft hole 2, made in the housing 1 parallel to the axis of the screwdriver 2, a groove 3, an adjusting screw associated with the housing 1, and a resilient profile element 5 which is mounted in the groove 3 of the housing 1 displacing the cracker 6 along it, which is connected to the adjusting Eint and interacting with the elastic profile element 5. The ring 5 is made lengthwise and the flexible element 7 connects the parts 8 and 9 of the ring 5. The ring 5 is fastened to the body 1 by a screw 10 and performed with yi-lub With a lens 11. The Sugar 6 has a protrusion 12 The adjustable cam operates as follows. Channel 1 is mounted on the drive shaft. The ring 5 is fixed on the housing with the screw 10, the protrusion 12 of the rusk 6 falls into the recess of the ring of the ring 5. The adjusting screw, rotating, moves the rusk 6 which by the protrusion 11 deflects the section 9 of the ring 5 by the required amount. The elastic deformation forces of the flexible element 7 create tension in the threaded joint of the adjusting screw j and the cracker 6, choosing a gap in the thread and preventing self-unscrewing. The sections 8 and 9 of the ring 5 correspond to the phases of the height and lift, in which the load on the profile element is different. Section 9 is subject to greater wear, and section 8 is less, so they can be made of materials with different wear resistance, which results in uniform wear of the ring 5. The proposed adjustable cam by making the profile element composite has a high efficiency, increased operability and allows save expensive materials with high wear resistance. Claims: Adjustable cam, comprising a housing having a shaft hole, a groove made parallel to the axis of the aperture in the housing, an adjusting screw associated with the housing, and a resilient profile element mounted in the housing groove capable of moving the cracker along it associated with an adjusting screw and interacting with an elastic profile element, characterized in that, in order to increase efficiency, the ring is made integral in length, and the cam is equipped with a flexible element connecting part and rings. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 167108, cl. F 16 H 53/0, 1963. 2, USSR Copyright Certificate under Application No. 2651096 / 25-28, Cl, F 16 H 53/04, 1979 (prototype).