SU1004629A1

SU1004629A1 - Hydropneumatic percussive device

Info

Publication number: SU1004629A1
Application number: SU813335390A
Authority: SU
Inventors: Владимир Иванович Шкаредный; Валентин Иванович Промышленников; Борис Валентинович Хабибулин
Priority date: 1981-09-11
Filing date: 1981-09-11
Publication date: 1983-03-15

Description

V54) ГИДРОПНЕВМАТИЧЕСКОЕ УДАРНОЕ V54) HYDROPNEUMATIC SHOCK

Изобретение относитс к горной промышленности и может быть использовано дл дроблени негабаритов.The invention relates to the mining industry and can be used to crush oversize.

Известно гидропневматическое импульсное устройство, содержащее корпус , боек, гидравлическую и газовую камеры, толкатель, выполненный в виде штока с поршнем, расположенный в ступенчатой полости tl3 ; Недостаток устройства заключаетс в сложности конструкции, что обусловлено наличием толкател , размещенного в ступенчатой камере, кву гидрораспределителей и гидропневматического аккумул тора, при этом возможны утечки газа через соединительные линии, что снижает надежность механизма.A hydropneumatic impulse device is known, comprising a housing, a face, a hydraulic and gas chamber, a pusher made in the form of a piston rod, located in a stepped cavity tl3; The drawback of the device lies in the complexity of the design, due to the presence of a pusher placed in a stepped chamber, hydraulic distributors and a hydropneumatic accumulator, with possible gas leakage through the connecting lines, which reduces the reliability of the mechanism.

Наиболее близким к предлагаемому изобретению по технической сущности и достигаемому результату вл етс гидропневматическое ударное устройство, содержащее корпус, поршень-боек , гидравлическую и газовую камеры, токатель с поршн ми, взвод щий поршень с торцовым уплотнением и гидрораспределитель 121.Closest to the proposed invention in terms of its technical essence and the achieved result is a hydro-pneumatic impact device comprising a housing, a face piston, a hydraulic and gas chamber, a current collector with pistons, a plunger with a mechanical seal and a hydraulic distributor 121.

Недостатком данного устройства вл етс сложность конструкции, обусловленна наличием трех посадочныхThe disadvantage of this device is the complexity of the design, due to the presence of three landing

I а. УСТРОЙСТВО .I a DEVICE.

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поверхностей у толкател с поршнем, что усложн ет сборку,, при этом на торцовое уплотнение, при рассоединении рабочего и взвод щего пориней, действуют боковые силы, привод щие к его преждевременному износу, что снижает надежность работы механизма.surfaces at the pusher with the piston, which complicates the assembly, while on the mechanical seal, when the worker is disconnected and who charges porin, lateral forces act, leading to its premature wear, which reduces the reliability of the mechanism.

Цель изобретени - упрощение конструкции и повьлиение надежности уст10 ройства.The purpose of the invention is to simplify the design and increase the reliability of the device.

Поставленна цель досГтигаетс тем, что в гидропневматическом ударном устройстве, содержгицем корпус, поршень-боек, гидравлическую и га15 зовую камеры, толкатель с поршн ми, взвод щий поршень с торцовым уплотнением и гидрораспределитель, во взвод щем поршне выполнена полость, в которой размещен один из поршней The goal is achieved by the fact that in a hydropneumatic percussion device, a housing, piston block, a hydraulic and gas chamber, a piston with a piston, a plunger with a mechanical seal and a hydraulic distributor, in the platoon piston there is a cavity in which one of the pistons

20 толкател , при этом пориень-боек имеет выступ, а взвод щий поршень-выемку , соответствующую выступу прршн бойка.20, the pusher has a protrusion and a plunger-indent corresponding to the protrusion of the striker.

На чертеже представлено предлага25 устройство.The drawing shows the proposed 25 device.

Claims

The hydropneumatic shock device comprises a housing 1, a hydraulic 2 and a gas 3 chambers, a working rod 4, with a piston 5 and a die 6, a piston 7 with a mechanical seal 8, a pusher 9 with pistons 10 and 11, a piston 7, a cavity 12 is formed in which the piston 10 of the pusher 9 is placed. The upper part of the working piston 5 has a centering protrusion 18, and the platoon piston 7 has a recess l4 corresponding to the protrusion 13 of the striking piston 13. The operation of the device is controlled by the valve 15 connected to the hydraulic chamber 2 through the channels 16 and 17. The device operates as follows. At the beginning of the working cycle, the movable shock mass — the working rod 4 by the piston 5 and the die 6 — is in the lower position, and the cockpit 7 with the pusher 9 and the piston 11 is in the upper position. Compressed gas), located in chamber 3, acts on the working body 5 and convoys. 7 pistons. The flow of the working fluid through the hydraulic distributor 15 and the channel 17 enters the hydraulic chamber 2 and acts on the pores of the piston piston 10 11, which rests on the bottom surface of the piston 7 CAVITY 12. The piston 7 contacts the piston 7 with the working piston 5, while the centering protrusion 13 goes into the recess 14. When changing the direction of flow of the working fluid, i.e. feeding it into the channel 16, the piston 11 with the pusher 9 and the piston 10 rises upwards. When the piston 10 moves upward, a gas gap is discharged between the platoon 7 and the working piston 5, while the output piston 7 remains in the lower position when exposed to its upper surface and lazy gas. In the most upward movement of the pistons 11 and 10 of the pusher 9, the piston 10 abuts against the upper surface, the cavities 12 of the charging piston 7, while raising the charging piston 7 and the entire moving shock mass due to the pressure of the gas on the rod surface of the working piston 5. At the end of the platoon, the firing pin 6 rests on the lower partition of the housing 1, and the platoon piston 7 continues to move upwards, so that the working 5 and the platoon 7 pistons disengage and the mobile shock mass accelerates. Further, the duty cycle is repeated. The application of the proposed hydropneumatic impact device allows to simplify the design due to the absence of a hollow rod, this reduces the diameter of the hydraulic chamber and increases the volume of the gas chamber, which increases the power of the mechanism. Performing the centering protrusion on the working piston and the notches in the platoon piston improves the reliability of the device. Claims of the invention: A hydropneumatic percussion device comprising a housing, a piston hammer, a hydraulic and gas chamber, a piston with a piston, a plunger with a mechanical seal and a hydraulic distributor, so that, in order to simplify the design and increase in the plunger piston, there is a cavity in which one of the pusher pistons is housed, while the piston-firing pin has a protrusion, and the plunger piston has a notch corresponding to the protrusion of the piston-crush. Sources of information taken into account in the examination 1. The author's certificate of the USSR 730435, cl. E 21 C 3/20, 1978.

2. USSR author's certificate in application number 2823064 / 22-03, cl. E 21 C 3/20, 1979 (prototype).

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