SU1178383A1 - Hand-operated tool for sawing carcasses - Google Patents

Abstract

HAND TOOL DAY SAWING carcasses, vklyuchakitsky housing, the saw blade and the drive comprising the crank-slider mechanism for communicating the saw blade reciprocating and corrective weight to dopolnitelnm slider-crank mechanism that distinguishes the fact that, with delyu Decrease the vibration .sheni tool and thereby improve the conditions of service, an additional crank mechanism is made paired and equipped with a cam, ime ci profile, repeating the trajectory of the correction center The crank-slider crankshaft mass mechanism, the additional crank crank crank, the §-slider mechanism has the shape of a disk with a radial groove, and the corrective masses are equipped with rollers for running cams.

Description

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9 1 1 The invention relates to hand saws for cutting carcasses of slaughter animals and can be used in the meat industry. The purpose of the invention is to reduce tool vibrations and thereby improve service conditions. Figure 1 shows the device, a General view from the side; figure 2 - drive top view. The handheld tool for sawing the carcasses includes a body 1, a saw blade 2, an actuator comprising a slider-crank mechanism for communicating the saw blade 2 with a reciprocating movement which consists of a slider 3, a connecting rod 4 and a crank 5 connected to the shaft 6 of the electric motor 7. In order to balance vibrations arising during saw blade movement, the device also contains correction masses 8, cams 9 having a profile that repeats the trajectory of the center of mass movement of the crank-slider mechanism of the blade 2, rollers 1 spring 11, connected to corrective masses 8 and intended, for running cams 9 by means of additional curve 1G /, / L, TTT uLi / G7 7 - / / I / fc- / / Tt / khu.L./y I / 7 5 4 7J / / / / 2 spike-creeping mechanism consisting of a crank 12, made in the form of a disk with a radial groove, a connecting rod 13 and a slider 3 (a common link of mechanisms). The device works as follows. When the motor 7 is turned on, the saw blade 2 is reciprocated, while the slider 3 imparts movement to the correction masses 8, which rotate in the direction opposite to the rotation of the crank 5. Due to the correction masses 8, the rollers 9 having profile, which repeats the trajectory of the center of mass of the crank-slider mechanism of the saw blade 2, they balance at any time both centrifugal and tangential inertia forces (modulo and directional) niyu). Thus, the vibration arising from the operation of the tool j will be significantly reduced. The proposed tool design allows for improved maintenance conditions by reducing the level of vibrations. J /

Claims (1)

MANUAL TOOL FOR CUTTING MEAT CARCASES, comprising a case, a saw blade and a drive containing a crank-slide mechanism for communicating the saw blade to the reciprocating movement and corrective masses with an additional crank-slide mechanism, distinguishing me by the fact that, in order to reduce solving vibration of the tool and thereby improving service conditions, an additional crank-slide mechanism is paired and equipped with cams having a profile that repeats the center path x mass crooked shipno slider-blade mechanism, the crank additional krivoship- but-slide mechanism has a disk shape with a radial groove, and corrective weight equipped with rollers for burnishing cams.