SU990499A1

SU990499A1 - Percussion compression-suction machine

Info

Publication number: SU990499A1
Application number: SU813325489A
Authority: SU
Inventors: Виктор Михайлович Брагинский; Владимир Порфирьевич Баландин; Борис Григорьевич Гольдштейн; Николай Матвеевич Кирюшин; Иван Ефимович Кудряшов; Николай Иванович Никишин; Дмитрий Терентьевич Русанов
Priority date: 1981-08-06
Filing date: 1981-08-06
Publication date: 1983-01-23

Description

Изобретение относитс к машиностроению , в частности к компрессион- но-вакуумным машинам ударного действи , примен емым в строительстве и горной промьзшленности. .The invention relates to mechanical engineering, in particular, to compression-vacuum percussive machines used in construction and mining. .

Известны компрессионно-вакуумные ;м ашины.ударного действи , содержа|дие корпус.,с зсривошипно-ползунным приводом, цилиндр, поршень-ударник, размещенный в цилиндре, рабочий инструмент, установленный в передней части цилиндра, и приводной пор-. шень, передающий движение ударнику через воздушную подушку l.Known compression-vacuum; shockman-assisted mounts, containing a casing; with a slider-slider drive, a cylinder, a piston-hammer located in the cylinder, a working tool installed in the front part of the cylinder, and a drive port. Shen, transmitting motion to the striker through the air cushion l.

Недостатком этих машин вл етс повышенный уровень вибрации корпуса ; из-за неуравновешенности массы приводного поршн и переменной периодической силы воздушной подушки, действующей на поршень и передаваемой на корпус.The disadvantage of these machines is an increased level of body vibration; due to the imbalance of the mass of the driving piston and the variable periodic force of the airbag acting on the piston and transmitted to the housing.

Наиболее близкой по технической сущности к предлагаемой вл етс 1компрёссионно-вакуумна машина ударного действи , содержаща корпус, закрепленный на нем ствол, размещенные в корпусе привод.и сообщенный со стволом нагнетательный цилиндр, прршень которого св зан с валом привода,The closest to the technical essence of the present invention is a shock-impact 1-vacuum machine, comprising a housing, a barrel fixed thereto, a drive housed in the housing, and a pressure cylinder communicated with the barrel, the pressure cylinder of which is connected to the drive shaft,

Недостатком известной машины вЯЯ т етс повышенный уровень вибрации, вызываемой неуравновешенной массой поршн и переменным давлением в полост х рабочего цилиндра, действующим на корпус.A disadvantage of the known machine is the TYPE of an increased level of vibration caused by an unbalanced mass of the piston and variable pressure in the cavities of the working cylinder acting on the housing.

Цель изобретени - повышение эф;фективности виброгашени .The purpose of the invention is to increase the efficiency of vibration dampening.

Поставленна цель достигаетс тем, The goal is achieved by

10 что компрессионно-вакуумна машина ударного действи снабжена вторым поршнем, установленным противофазно первому и симметрично ему относительно оси ствола и св занным с приводом, 10 that the compression-vacuum percussion machine is equipped with a second piston installed anti-phase with the first and symmetrically with respect to the axis of the barrel and associated with the drive,

15 посредством второго вала, при этом оси ствола и цилиндра перпендикул рны одна другой, а оба вала перпендикул рны .ос м цилиндра и ствола.15 by means of a second shaft, wherein the axes of the barrel and cylinder are perpendicular to one another, and both of the shaft are perpendicular to the axis of the cylinder and the barrel.

На фиг. 1 представлена cxeMaTjj4ec20 ки компрессионно-вакуумна машина ударного действи ,.в разрезе по плоскости, проход щей через ось ствола и параллельной оси нагнетательного цилиндра; на фиг. - то же, в раз25 резе по плоскости, проход щей через ось ствола и перпендикул рной оси нагнетательного цилиндра.FIG. Figure 1 shows the cxeMaTjj4ec20 ki compression-vacuum percussion machine, in a section along a plane passing through the axis of the barrel and parallel to the axis of the discharge cylinder; in fig. - the same, in section 25 along a plane passing through the axis of the barrel and perpendicular to the axis of the pressure cylinder.

Claims

Predalagaem compression-vacuum machine percussion co30 holds the housing 1, which houses the actuator 2, which has two crank-pole mechanisms 3 and 4, the pressure cylinder 5 is attached to the housing 1 and the shaft 6 communicated with it having axes 7 and 8, respectively, perpendicular to each other . Pistons 9 and 10 of equal mass are placed in the injection cylinder 5 and placed antiphase and connected, respectively, with shafts 11 and 12 via slider-crank mechanisms 3 and 4 In the barrel 6 there is a hammer 13 / in the front part of the barrel 6 a working tool is placed 14. The cavity 15 on the pressure cylinder 5 between pores 9 and 10 communicates with the cavity 16 of the barrel through the opening 17. The ports 9 and 10 are symmetrically distributed about the axes of the barrel b, and the axes 7 and 8 of the cylinder 5 and barrel 6 are perpendicular to each other to a friend, with both shafts 11 and 12 perpendicular to the wasp m 7 and 8 cyl the core and the bore. On shafts 11 and 12, unbalances 18 and 19 of equal mass are placed / placed antiphase, with a cent of E4d t of tin 20 and 21 of debalance located in a plane passing through the axis 8 of barrel 6. The radius vectors of 22 and 23 centers of tin 20 and 21 debalance make the same angle, respectively, with crank-slider me-ss 3 and 4, .. The proposed compression-vacuum percussion machine works as follows. When actuator 2 is turned on, pistons 9 and 10 are driven into antiphase movement by crank-slider Mechanisms 3 and 4, creating an IS cavity and communicating with it: core 16 of barrel 6 alternately underpressure and compression, due to alternating pressure in cavity 16. Shock 13 performs reciprocating on the stepping movement and strikes the working tool 14. Since the pistons 9 and 10. have the same mass, and the crank-slider fur of bottom number 1 are symmetric about the plane passing through the axis 8 of the barrel 6 and perpendicular to the axis 7 of the cylinder 5, fullness mechanism Tew is balanced along axis 7, therefore there is no vibration in the direction of axis 7. fatC as unbalances 18 and 19 have equal mass, drive $ 1 tf in motion symmetrically and antiphase / a-their centers of gravity 20 and 21 are symmetric about the axis 8 of the barrel 6 and are located in a plane perpendicular to the axis 7 of the cylinder 5, the total inertia force of the unbalances acts on the axis 8 of the barrel 6. The masses of unbalance and their installation angle relative to the cranks L can be. selected so as to suppress the first harmonic of the forces acting on body 1 along the axis 8 of the barrel. Thus, the compact vacuum vacuum percussion machine has a reduced vibration in the direction of the axes 7 and 8, respectively, of the cylinder and the barrel. Claim Compression Vacuum Percussion Machine, containing Kopnyq, a barrel mounted on it, a drive housed in the housing and a connected body, a pressure cylinder whose piston is connected to the drive shaft, so as to improve efficiency vibration damping / it is equipped with a second piston installed antiphase first and symmetrically with respect to the barrel axis and connected to the drive through the second shaft, with the axis, barrel and cylinder perpendicular to pHyG, one another, and both shafts are perpendicular the axles of the cylinder and the trunk. Information sources, . taken into account in the examination of 1, P. N. Shentsev and others. Manual electric percussion machines. M., Nedra, 1970, p. 156.

2. US patent number 3568780, cl. 173-llb, 1971 (prototype).