SU883428A1

SU883428A1 - Percussive device

Info

Publication number: SU883428A1
Application number: SU802903170A
Authority: SU
Inventors: Игорь Павлович Сорокин; Иван Васильевич Михайлин; Михаил Васильевич Сафонов; Алексей Федорович Свириденко
Original assignee: Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Горного Дела Им.А.А.Скочинского
Priority date: 1980-03-31
Filing date: 1980-03-31
Publication date: 1981-11-23

Description

(54) УСТЮЙСТВО УМгаОГО ДЕЙСТВИЯ(54) APPROACH OF THE MINING ACTION

1one

Изобретение относитс к устройствам yzwpj него действи и может быть использовало, в частности, дл разрушени горных пород, щх ленн негабаритов и т.д.The invention relates to devices for its action and can be used, in particular, for the destruction of rocks, ux lenn oversize, etc.

Известно устройство ударного действи дн ртзрушени горных пород, содержащее рабочий инструмент и полый направл ющий цилишф, коаксиально которому размещены инертна масса, статор и корь с электрическими о&иотками, подключенными к генератору электрических импульсов, и имеющие возможность осевого перемещени в противеттоложных направлени х под действием злектродннамической силы дл сообщени удара инструменту. При этом дл обеспечени работы устройства в раз;шчном пространственном положении оно снабжено корпусом, в котором статор установлен подвижно и соединен с инструментом и демпфирующим элементом, расположенным в хвостовсж части цшшнщ а и служащим дл торможени и возврата кор и соединенной с ним инертной массы после удара 1.A percussion device for the destruction of rocks containing a working tool and a hollow guide is known, coaxially accommodating inertial mass, a stator and measles with electrical currents connected to an electrical impulse generator, and having axial displacement in opposite directions under the action Electrodynamic force for communicating impact to the instrument. At the same time, in order to ensure operation of the device at times, its spatial position is provided with a housing in which the stator is mounted movably and connected to an instrument and a damping element located in the tail section of the chassis and which serves to brake and return the core and inertial mass connected to it after impact one.

Это устройство выполн етс достаточно мощным, чтобы обеспечить эффективное разрущение породы. Но его работа сопровождаетс значительными вибраци ми и отдачей корпуса в св зи с возвратео-поступательньгм перемещением статора с Инструментом и кор с инертной массой, которые передаютс на базовую машину, где монтируетс указанное устройство ударного действи . Применение инертной массы и демпфирующего элемента This device is powerful enough to provide effective rock destruction. But his work is accompanied by significant vibrations and recoil of the body in connection with the return-progressive movement of the stator with the Tool and the core with an inert mass, which are transmitted to the base machine, where the specified percussion device is mounted. The use of inert mass and damping element

10 усложн ет конструкцию устрсжства и не избавл ет от поломки приспособлений, креп ихих ударное устройство к базовой машине. 10 complicates the design of the device and does not eliminate the breakage of the attachments by attaching the impact device to the base machine.

Наиболее близким техническим рещением The closest technical solution

IS из известных к насто щему изобретению вл етс устройство ударного действи , содержащее , по меньиюй мере, два параллельно расположенных ударных механизма, каждый из которых имеет установленный - аксиально An IS known to the present invention is a percussion device comprising at least two parallel percussion mechanisms, each of which has an installed - axially

20 подаижно в корпусе ударный поршень, взаимодействующий с рабочим инструментом 2J.20 in the housing there is a shock piston interacting with the working tool 2J.

Claims

In the known device, the percussion mechanisms work simultaneously and the vibration and recoil arising from their 3 work are transmitted to the supporting frame on which they are mounted. This device is limited by the use of the well extension and the power of the percussion mechanisms therefore it is relatively small so that there is no immediate danger for the destruction of the frame. under the influence of vibration and recoil. The purpose of the invention is to reduce recoil when high-powered impact mechanisms work. This goal is achieved due to the fact that the percussion device is equipped with a rocker that connects porish shock mechanisms with the possibility of their simultaneous movement in opposite directions. At the same time, the rocker arms are placed and the slide bearings, which are rotatable around its axis. The drawing shows a percussion device for the destruction of rocks, a longitudinal section. The device contains two adjacent OD1Sh to another cylindrical body 1 and 2, arranged so that their longitudinal axis is parallel. Each housing 1 and 2 contains one shock pipe 3 and 4, which have the possibility of axial reciprocating movement, for example, under the action of gaseous combustion products, and interacting with working tool 5 and 6, installed respectively in housing 1 and 2. Pistons 3 and 4 are interconnected by a rocker arm 7 having an axis of rotation 8. The ends 9 and 10 of the yoke 7 are placed in the sliding bearings 11 placed in the mounting holes 12 of the pistons 3 and 4 with the possibility of rotation around its axis. In buildings 1 and 2, combustion chambers 13 and buffer cavities 14 are made. Through channel 15, where valve 16 is installed, air is supplied to combustion chamber 13 from an external source (not shown) during the device start-up period. Fuel injection into chamber 13 is carried out using a nozzle 17. Exhaust gases are thrown through channel 18. Tool 5 and 6 are equipped with a piston 19 on the side of the buffer cavity 14 and pass through a bushing 20 of housings 1 and 2. To purge the combustion chamber 13 serve channel 2L The device works as follows. Compressed air is supplied to the combustion chamber 13 through the channel 15, under its pressure, the piston 3 begins to move in the housing 1 along with the end (shoulder) 9 of the rocker arm 7, causing the piston 4 in the housing 2 8 to move in the opposite direction. At the same time, the ends 9 and 10 of the yoke 7 slides in the bearings II, rotating them in the mounting holes 12 of the pistons 3 and 4. The piston 3, continuing to move in the housing I, compresses the air in its buffer cavity 14 to a certain pressure, thereby transferring energy to working tool 5 and further on the destruction of the rock. At this time, the piston 4 intersects the purge 15 and exhaust 18 channels in the housing 2 and compresses the air in the combustion chamber 13 until the fuel is injected by the injector 17. After the fuel ignites, the expanding gases of the combustion products move the piston 4 in the direction of the working tool 6 to complete the expansion work rock formation. The piston 3 at this time moves in the housing 1 and the side of its combustion chamber 13. Further, the cycles are repeated in the sequence described above. Since when moving the working tool 5 and 6 at the time of rock destruction, the volume of the buffer cavity 14 increases, its filling with air after each cycle will occur through the window in which the axis 8 of the rotation of the rocker arm 7 is installed. As a result of the described implementation, due to the simultaneous movement of the pistons in opposite directions, it is possible to significantly reduce the vibration of the enclosures and the stability of the device. Claim 1. A percussion device containing at least two pa1) allelic percussion mechanisms, each of which has a percussion piston installed axially movable in the housing and interacting with the working tool, in order to reduce recoil during the operation of high-power percussion mechanisms, it is equipped with a beam connecting pistons of percussion mechanisms with the possibility of their simultaneous movement in opposite directions. 2. The device according to claim 1, characterized in that the end of the rocker arm is placed in the sliding bearings accommodated in the pistons with the possibility of rotation around its axis. Sources of information taken into account in the examination 1. USSR author's certificate N 602646, cl. E 02 D 7/08, 1976.

2. Patent of Germany No. 1235241, cl. 5 in 23/00, published. 1967. 1 P 3 i8 219 11 ff Iff f9