SU1273536A1

SU1273536A1 - Percussive device

Info

Publication number: SU1273536A1
Application number: SU782622956D
Authority: SU
Inventors: Георгий Михайлович Носиков; Иван Кондратьевич Скляр; Иван Петрович Ткаченко
Original assignee: Управление Малой Механизации "Сибэнергомеханизация"
Priority date: 1978-06-01
Filing date: 1978-06-01
Publication date: 1986-11-30
Also published as: SU699169A1

Abstract

Изобретение относитс к горной промьшшенности, в частности к устройствам ударного действи дл разрушени горных пород. Цель изобретени - упрощение конструкции устройства . Внутренн полость корпуса 1 устройства разделена ударником 2 на камеры 5 и 6 пр мого и обратного хода соответственно, а между хвостови.ком 3 инструмента 4 и корпусом 1 образована камера 8 пневматического амортизатора, сообщенна .с камерой 6 обратного хода кольцевым зазором 7 и снабженна упругим элементом 9, установленным в нижней части камеры. При работе устройства упругий элемент 9 гасит остаточную энергию холостого хода инструмента 4. 1 ил. (Л ю 00 СП со О5The invention relates to the mining industry, in particular to impact devices for breaking rocks. The purpose of the invention is to simplify the design of the device. The internal cavity of the housing 1 of the device is divided by the projectile 2 into chambers 5 and 6 of forward and reverse travel, respectively, and between the tailpiece 3 of instrument 4 and housing 1, a chamber 8 of a pneumatic shock absorber is formed, communicated with the reverse stroke chamber 6 with an annular gap element 9 installed at the bottom of the camera. During operation of the device, the elastic element 9 quenches the residual energy of the idling of the tool 4. 1 Il. (LU 00 SP with O5

Description

Изобретение относится к горной промышленности, в частности к устройствам ударного действия для разрушения горных пород.The invention relates to the mining industry, in particular to percussion devices for the destruction of rocks.

Цель изобретения - упрощение конструкции устройства.The purpose of the invention is to simplify the design of the device.

На чертеже изображено предлагаемое устройство с частичным разрезом.The drawing shows the proposed device with a partial section.

В корпусе 1 размещен ударник 2, опирающийся на хвостовик 3 инструмента 4, разделяющий внутреннюю полость корпуса 1 на камеру 5 прямого хода и камеру 6 обратного хода, сообщенную кольцевым зазором 7 с камерой 8 пневматического амортизатора, в нижней части которой размещен упругий элемент 9. Камера 6 каналами IО сообщена с воздухораспределительным механизмом 11. Устройство снабжено механизмом 12 запуска и патрубком 13 для подачи сжатого воздуха. Для периодического сообщения камер 5 и 6 с атмосферой предусмотрены выхлопные отверстия 14.A drummer 2 is placed in the housing 1, resting on the shank 3 of the tool 4, dividing the internal cavity of the housing 1 on the forward stroke chamber 5 and the reverse motion chamber 6, communicated by an annular gap 7 with a pneumatic shock absorber chamber 8, in the lower part of which an elastic element 9 is placed. Camera 6 channels IO is in communication with the air distribution mechanism 11. The device is equipped with a start mechanism 12 and a pipe 13 for supplying compressed air. For periodic communication of the chambers 5 and 6 with the atmosphere, exhaust openings 14 are provided.

Устройство работает следующим образом.The device operates as follows.

При приложении к инструменту 4 рабочего усилия корпус 1 и упругий элемент 9 перемещаются до упора корпуса 1 в хвостовик 3 инструмента 4. При этом между корпусом 1 и хвостовиком 3 сжимается воздух в камере 8. Одновременно включается механизм 12 запуска, и сжатый воздух через патрубок 13 и воздухораспределительный механизм 11 по каналам 10 поступает в камеру 6 и через зазор 7 в каме ру 8. В камерах 6 и 8 устанавливается сетевое давление.When a working force is applied to the tool 4, the housing 1 and the elastic element 9 are moved all the way to the stop of the housing 1 in the shank 3 of the tool 4. At the same time, air in the chamber 8 is compressed between the housing 1 and the shank 3. and the air distribution mechanism 11 through the channels 10 enters the chamber 6 and through the gap 7 in the chamber 8. In the chambers 6 and 8, the network pressure is established.

Ударник 2 двигается вверх, создавая в камере 5 противодавление, пе5 реключающее механизм 11 на подачу воздуха в камеру 5, при этом камера 6 через отверстия 14 сообщается с атмосферой и начинается движение ударника 2 вниз. Далее цикл повторяло ется.The drummer 2 moves upward, creating a counter-pressure in the chamber 5, switching the mechanism 11 to supply air to the chamber 5, while the chamber 6 communicates with the atmosphere through the openings 14 and the downward motion of the striker 2 begins. Then the cycle repeats.

В момент разрушения материала гор· ных пород падает сопротивление, оказываемое материалом инструменту 4, 15 который под действием инерционных сил и сил давления перемещается вперед. Этому перемещению препятствует сжатый воздух в камере 8, а в конце хода - упругий элемент 9, гасящий ос· 20 таточную энергию холостого хода инс.т· румента 4 до момента включения устройства механизмом 12 запуска.At the moment of destruction of the rock material, the resistance exerted by the material to the tool 4, 15 decreases, which moves forward under the influence of inertial forces and pressure forces. This movement is prevented by compressed air in the chamber 8, and at the end of the stroke, by an elastic element 9 that extinguishes the residual idle energy of the tool 4 until the device is turned on by the trigger 12.

Claims

The invention relates to the mining industry, in particular to impact devices for rock destruction. The purpose of the invention is to simplify the design of the device. The drawing shows the proposed device with a partial cut. The drum 1 is placed in the housing 1, resting on the shank 3 of the tool 4, which separates the internal cavity of the housing 1 on the forward stroke chamber 5 and the reverse stroke chamber 6 connected by an annular gap 7 with a pneumatic shock absorber chamber 8, in the lower part of which there is an elastic element 9. The chamber 6 is connected by channels 10 with an air-distributing mechanism 1. The device is equipped with a trigger mechanism 12 and a nozzle 13 for supplying compressed air. Extraction ports 14 are provided for periodically communicating the chambers 5 and 6 with the atmosphere. The device operates as follows. When the working force is applied to the tool 4, the body 1 and the elastic element 9 move up to the stop of the body 1 into the shank 3 of the tool 4. At the same time, the air in the chamber 8 is compressed between the body 1 and the shank 3. At the same time, the start mechanism 12 and the compressed air are turned on and the air distribution mechanism 11 flows through the channels 10 into the chamber 6 and through the gap 7 into the chamber 8. In the chambers 6 and 8, the net pressure is established. Drummer 2 moves upward, creating a back pressure in chamber 5, switching mechanism 11 to supply air to chamber 5, the chamber being 6 hours; the hole 14 is in communication with the atmosphere and the downward movement of drummer 2 begins. Then the cycle repeats. At the time of the destruction of the material of the rocks, the resistance exerted by the material to the tool 4, which under the action of inertial forces and pressure forces moves forward, decreases. This movement is prevented by compressed air in chamber 8 and, at the end of the stroke, elastic, 9, damping the residual idling energy of the engine of tool 4 until the device is activated by the trigger mechanism 12. The invention of the percussion device, comprising a housing divided by a striker into a forward and reverse chamber, which communicates with a pneumatic chamber shock absorber and a drilling tool with a shank, which is characterized by the fact that, in order to simplify the design, in the lower part of the pneumatic shock absorber chamber there is an elastic element, and at the top there is a tool shank.