SU1237266A1 - Vibration exciter for cutting tool - Google Patents

Description

The invention relates to a vibration technique and can be used to excite the vibrations of a cutting tool during the crushing and grinding of various materials in a machine.

The aim of the invention is to understand the performance of the oscillator by creating a shaft oscillation due to a change in its angular velocity.

The drawing shows the pathogen oscillations of the cutting tool section.

The oscillation activator comprises a housing 1, a shaft 2 mounted therein with a cutting tool 3 fixed on it, a shaft feed mechanism 2, which is a spring 4, and a reciprocating movement mechanism of the shaft 2, executed in the form of a driving 5 located on the shaft 2 and the driven 6 half couplings fixed on the shaft 2 by means of a key 7 of the cup 8, a cam 9 fixed on it, mounted coaxially on the shaft 2, and hinged four-link arms, the link 10 of which are parallel to the axis of the shaft 2 with the possibility of interaction with the cam 9 and home po- lumuftoy 6 and biased relative to the housing 1 in a direction parallel to the axis of the shaft 2, the springs 11 and the units 12, 10 m units opposed, fixed to the housing 1.

The exciter is as follows.

From the drive (not shown), the shaft 2 receives a rotational motion. Together with the shaft 2, it begins to rotate synchronously with the cup 8, since it is connected to the shaft by a key 7, and the coupling half 5 and 6. Together with the cup 8, the fixed on it and mounted

Editor I.Rybchenko Order 3224/9

Compiled by N.Vartanova

Tehred L. Serdyukova Proofreader M. Maksimishinets

Circulation 428 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

coaxial to shaft 2, cam 9. Shaft 2 with cutting tool 3 closes on the material being processed. The shaft 2 is fed by the spring 4. Since the surface of the cam 9 is profiled, and the spring 11 provides a constant contact of the link 10 with the cam 9, as the shaft 2 is further rotated, the protrusions of the cam 9 come to the link 10, while the link 10 goes down and displaced to the axis of the shaft 2, the stopper driven coupling half 6. Since the shaft 2 and the coupling coupling 5 associated with it continue to rotate during the holding of the coupling half 6 by the links 10, the relative movement of the shaft 2 and the coupling half 5 up or reciprocating and movement depending on the length of the maximum portion of the cam protrusions 9 and the box structure. With further rotation of the shaft 2, the links 10 of the hinge quadruple along the drop-down profile of the cam 9 under the action of the spring 11 rise upwards relative to the housing 1, freeing the coupling half b.

The cycle described is repeated many times. The shaft 2 performs reciprocating movements with an amplitude equal to the relative displacement of the half couplings 5 and 6 and not dependent on the feed of the shaft -2.

Such an implementation of the mechanism of reciprocating movement of the shaft 2 allows to stop the half-coupling 5 by jamming it between the fixed links of the hinged four-shafts, while the clutch is activated and an oscillation of the shaft 2 occurs due to the change in its angular velocity, which increases the performance of the vibration exciter.

Claims (1)

Exciter of vibrations of a cutting tool, comprising a housing, a shaft mounted therein with a cutting tool fixed thereon, not fixed to the shaft of the nozzle, a cam mounted coaxially to the shaft, and articulated four-link, one of each of which is parallel to the axis of the shaft with the possibility of interaction with the cam and with the driven coupling half and spring-loaded in a direction parallel to the axis of the shaft, characterized in that, in order to increase the performance of its work, the links of each articulated four-link, pa allelic axle shaft are biased relative korhanizm feed shaft and a mechanism for reciprocating the Busan units for opposing them, - SI „1237266 1237266>