SU919860A1

SU919860A1 - Pneumohydraulic percussion-action apparatus

Info

Publication number: SU919860A1
Application number: SU802954482A
Authority: SU
Inventors: Борис Васильевич Андреев; Герман Михайлович Егоров; Игорь Иосифович Красовский; Яков Наумович Дехтярев; Вера Азриэльевна Рубинштейн; Николай Александрович Смирнов; Геннадий Васильевич Щепеткин; Юрий Иванович Эрминиди
Original assignee: Государственный Проектный И Научно-Исследовательский Институт Никелевой Промышленности "Гипроникель"
Priority date: 1980-07-04
Filing date: 1980-07-04
Publication date: 1982-04-15

Description

(54) ПНЕВМОГИДРАВЛИЧЕСКОЕ УСТРОЙСТВО УДАРНОГО ДЕЙСТВИЯ(54) PNEUMATIC HYDRAULIC DEVICE OF SHOCK ACTION

1one

Изобретение относилс к горной- промышленности , а именно к машинам ударного действи с гидропневмоприводом.The invention relates to the mining industry, namely, percussion machines with a hydropneumatic actuator.

Известно пневмогидравлическое устройство ударного действи , содержащее корпус, в центральном канале которого установлен ударный поршень, камеру взвода и систему управлени 1.A pneumatic-hydraulic percussion device is known, comprising a housing, in the central channel of which a percussion piston, a platoon chamber and a control system 1 are installed.

Недостатком этого устройства вл етс отсутствие в нем элементов, обеспечивающих необходимое усилие прижати устройства; к разрушаемой среде. .The disadvantage of this device is the absence of elements in it that provide the necessary pressing force of the device; to destructible medium. .

Наиболее близким по технической сущности и достигаемому результату к предлагаемому вл етс пневмогидравлическое устройство ударного действи , содержащее цилиндрический корпус, размешенные в лем боек, гидроцилиндры взвода бойка и механизм дл его фиксации в исходном положении 2.The closest in technical essence and the achieved result to the proposed is a pneumohydraulic percussion device containing a cylindrical body placed in the firing pin, cylinders of the striking platoon and a mechanism for fixing it in the initial position 2.

Недостатком такого устройства вл етс мала его надежность.The disadvantage of such a device is its low reliability.

Цель изобретени - повышение надежг ности устройства.The purpose of the invention is to increase the reliability of the device.

Указанна цель достигаетс тем, что оно снабжено установленным на цилиндрическом корпусе с возможностью осевого перёмешени кронштейном и размещенными на нижней части, цилиндр-ического корпуса упорами дл прижима устройства к обрабатываемой поверхности, гидроцилиндры взвода бойка шарнирно закреплены на кронштейне, а их штоки взаимодействуют с упорами.This goal is achieved in that it is provided with an arm mounted on a cylindrical body with axial misalignment and stops placed on the lower part of the cylinder body to press the device to the surface to be machined, the cylinders of the striker body are hingedly mounted on the bracket, and their rods interact with the stops.

На чертеже схематично изображено пневмогидравлическое устройство ударного действи в момент прижима его к разрушаемой среде, разрез.The drawing schematically shows a pneumatic-hydraulic percussion device at the moment of its pressing against a destructible medium, a section.

Пневмогидравлическое устройство удар10 ного действи содержит цилиндрический корпус 1, внутри которого установлен боек 2, торцовое уплотнение 3, механизм 4 фиксации бойка в исходном положении, гидроцилиндры 5 взвода бойка 2 и камеру 6, заполненную сжатым газом, например воздухом.The pneumatic-hydraulic shock device includes a cylindrical body 1, inside which the striker 2 is installed, the mechanical seal 3, the striker locking mechanism 4 in the initial position, the hydraulic cylinders 5 of the striking platoon 2 and the chamber 6 filled with compressed gas, for example air.

1515

Claims

The cylinders 5 of the platoon of the striker 2 are hinged on the bracket 7, which is connected to the cylindrical body 1 with the possibility of axial mixing. The hydraulic cylinders 5 of the platoon of the striker 2 have hydraulic chambers 8 and 9. The rods 10 of the hydraulic cylinders 5 of the platoon of the striker 2 are movably connected with tides II, made on the striker. 2. On heads 12 of rods 10 shock absorbers are installed} 3 - packages of elastic elements. On the cylindrical body in its lower part there are made stops 14, designed to press the device with the rod heads 12 to the destructible medium 15. The hydraulic hydraulic device of the percussion machines works as follows. Prior to the start of operation of the device, chamber 6 is filled with compressed gas and a pneumatic-hydraulic device is installed on a destructible medium 15. For charging the striker 2, the hydraulic chambers 8 of the hydraulic cylinders 5 of the charging platoon 2 are connected to the pressure line, a. the hydraulic chambers 9 are with a drain line, while the rods 10 are lifted and, being connected by tides 11 with the striker 2, the striker 2 is lifted up to the stop in the mechanical seal 3. The fixation mechanism 4 of the striker is in the initial position. After this, switching the control system (not shown) connects the hydraulic chambers 9 hydraulic cylinders 5 of the platoon of the striker 2 to the pressure line, and the hydraulic chambers 8 - to the drain line, causing the rods 10 to descend to the stops 14. With further downward movement the rods 10 heads 12 press the device to the destructible medium 15, while the body 1 mixes down relative to the bracket 7. The striker 2 is kept down in the upper precancet position at the mechanical seal 3 by the fixation mechanism 4 when the rods 10 move down. and in the initial position and the gas pressure in the chamber 6. The device is prepared for impact. Switch mechanism 4 fixation striker in the original position. The firing pin 2 is detached from the mechanical seal 3 by the gas pressure in the chamber 6, accelerates and hits the destructible medium 15. The cycle is completed. To complete the next strike, the cycle is repeated. In case of premature separation of the striker 2 from the mechanical seal 3 or non-directional impact, the striker 2 tides 11 hits the shock absorbers 13, which are in the clamped state between the head 12 of the stem 10 and the tide I. The shock absorbers 13 absorb a significant part of the impact energy, and the remaining seconds are absorbed rods 10 hydraulic cylinders 5. The proposed implementation of a pneumatic-hydraulic percussion device significantly increases its reliability. The invention includes a pneumatic-hydraulic percussion device containing a cylindrical body, the firing pin of the firing pin, and the mechanism for fixing it in the initial position, characterized in that, in order to increase the reliability of the device, it is equipped with an arm mounted on the housing with the possibility of axial movement. on the bottom of the housing stops for clamping the device to the surface to be machined, the platoon cylinders of the striker are hinged on the bracket, and their rods engage with stops. Sources of information taken into account during the examination 1. USSR author's certificate No. 308805, cl. B 21 D 7/02, 1971.

2. Patent of the USSR No. 682146, cl. E 21 C 3/20, 1979 (prototype).