SU738876A1

SU738876A1 - Portable power saw

Info

Publication number: SU738876A1
Application number: SU792713944A
Authority: SU
Inventors: Эрнст Александрович Келлер
Original assignee: Пермский политехнический институт
Priority date: 1979-01-17
Filing date: 1979-01-17
Publication date: 1980-06-05

Description

1 . one .

Изобретение относитс к ручным механизированным инструментам и может быть использовано в лесной и деревообрабатъгоающей промышленностн.The invention relates to handheld mechanized tools and can be used in forestry and woodworking industries.

Известна переносна моторна пила, вклюг чающа двнгатель и пильный аппарат, жестко соединенные со стойкой, на другом конце которой установлен бензобак, руко тки управле нн , св занные с бензобаком при номощи упругих элементов 1.A known portable motor saw, including a saw and a saw, is rigidly connected to a rack, on the other end of which a gas tank is installed, handles are operated, connected to a gas tank with knobs of elastic elements 1.

Наиболее близкой к нзобретению вл етс переносна моторна пила, включающа двигатель с пильным аппаратом, жесжо соединенньте со,стойкой, на другом конце которой установлен бензобак, соединенный с руко тками управлени посредством упругих злементов, одни концы которых закреплены на руко тках при помопщ проушин, а другие на бензобаке при помощи кронштейнов 12.Closest to the invention is a portable motor saw, including a motor with a sawing device, zheshazno connected with, stand, at the other end of which is installed a gas tank connected to the control handles by means of elastic elements, one ends of which are fixed on the handles with the help of eyelets, others on the gas tank with brackets 12.

Недостатком нзвестных конструк1ШЙ вл етс низка зффективность виброиЗрл щш в направлении основного возбуждени от двигател .A disadvantage of the known constructions is the low efficiency of the vibration in the direction of the main excitation from the engine.

Цель изобретени - устранение указанного недостатка.The purpose of the invention is to eliminate this drawback.

Достигаетс это тем, что руко тки управлени св заны между собой посредством шарннров , которые имеют закрепленную на бензобаке посредством упругих втулок общую ось, а с бензобаком - посредством дополнительных упругкх элементов, причем основные упругие элементы расположены в двух плоскост х, одни из которых выше, а друга ниже ру :о ток This is achieved by the fact that the control handles are interconnected by means of hinges, which have a common axis fixed on the gas tank by means of elastic bushings, and with additional elastic elements on the gas tank, the main elastic elements being in two planes, one of which is higher, a friend below ru: o current

10 управлешс .10 controls

На фиг. 1 изображена переносна моторна шша, общий вид; на г. 2 - то же, вид сверху; на фиг. 3 - сечение А-А фиг. 2; на фнг. 4 - внд Б фнг. 2; на фнг. 5 - внд В FIG. 1 shows a portable motor, general view; on r. 2 - the same, top view; in fig. 3 - section A-A of FIG. 2; on fng. 4 - vnd B fng. 2; on fng. 5 - vnd B

15 фиг. 2.15 of FIG. 2

Переносна моторна шша включает двигатель 1 и пнльный аппарат 2, жестко соединенные со стойкой 3, на другом конце которой установлен бензобак 4. Руко тки управлени The portable motor-wheel assembly includes the engine 1 and the manual unit 2, rigidly connected to the rack 3, at the other end of which the gas tank 4 is installed.

Claims

VO 5, 6 are connected to the gas tank 4 at PS and the number of additional elastic elements 7–10. Each of the handles 5, 6 is connected to the gas tank 4 of the Schmidner II and the main elastic elements 12, 13 and 14, 15, so that the axis 16 of Sharpir II is equidistant from the handles S, 6 and lies in the plane of the pn, perpendicular main direction of excitation from the engine, for example, the vertical direction Z. The main elastic elements 12, 13 and 14, 15 are reinforced, for example, in the form of tension springs and arranged perpendicular to the axis of the hinge 16 symmetrically with the plane pn, and each end of the springs 12 -15 is fixed on the handles 5, 6 with the help of eyelets 17, 18 and 19, 20, and the other on The gas tank 4 when using the brackets 21, 22. The tension of the springs 12-15 is made by moving the lugs 17-20 relative to the handle 5, 6. The axis 16 of the hinge 11 interacts with the gas tank 4 by means of elastic sleeves 13, for example, from a polymeric material. The main elastic elements 12, 13, as well as 14, 15 are located at their own, in the planes m-m and rr, r-d. and d - perpendicular to the axis 16 of the hinge 11. Motopila works as follows. The engine, filled without equilibrating the first-order cHjf of the first-order echogenerator, generates spatial oscillations with the largest amplitudes acting along the Z axis, which are transmitted through elastic elements 7-10 and 12-15 to the control knobs 5, 6. The oscillations of the fuel tank 4 are also transmitted to handles 5, 6 through elastic sleeves 23, axis 16 and hinge 11. The main elastic elements 12, 15 and 13, 14, acting in pairs on each of handles 5 and 6, hinged on axis 16, create a negative elasticity, allowing significantly reduce the frequency of own oscillations of each of the handles on elastic suspension to the gas tank in the direction of Z axis, i.e., to increase the detuning of the systems of hands from resonances at operating conditions. This makes it possible to increase the efficiency of vibroiolation of the knobs in the direction of the main excitation of the engine. The presence of elastic sleeves 23 reduces the level of spatial vibration. Transmitting from the side of the fuel tank 4 to the handles 5, 6 through the axis 16. The arrangement of the main elastic elements 12, 13 and 14, 15 in two planes r-y and ensures uniform loading of the control handles, which increases the reliability of the device. In addition, the separation of the handles 5, 6 and the presence of the joint 11 leads to a decrease in the angular oscillations of the engine caused by the harmonics of the reactive torque. Claims of the invention A portable motor-saw, including a motor with a sawing apparatus, rigidly connected to a rack, at the other end of which a gas tank is mounted, connected to the control handle iffffl by means of elastic elements, one ends of which are fixed on the arms x by means of eyelets and others on the gas tank support arms, characterized in that, in order to increase the vibration of the handles, the control handles are interconnected by means of hinges, which are mounted on the gas tank by means of elastic sleeves common axis, and with the gas tank through additional elastic elements. Moreover, the main elastic elements are located in two planes, one of which is higher and the other is below the control knobs. Sources of information taken into account in the examination 1. USSR author's certificate And 447249, cl. B 27 B 17/00, 1973. 2 Author's Note: Svidetetelstao USSR No. 451520, cl. B 27 B 17/00, 1973 (prototype).

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