SU863854A1

SU863854A1 - Hydraulic-percussive device

Info

Publication number: SU863854A1
Application number: SU792805394A
Authority: SU
Inventors: Тамара Васильевна Алексеева; Эрнст Борисович Шерман; Роберт Петрович Кириков; Сергей Павлович Лупинос; Николай Семенович Галдин; Владимир Вениаминович Исаенко
Original assignee: Сибирский автомобильно-дорожный институт им.В.В.Куйбышева
Priority date: 1979-08-01
Filing date: 1979-08-01
Publication date: 1981-09-15

Description

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Изобретение относитс к строителЬ-г ству, горному делу, дорожному машиностроению , в частности к гидравлическим устройствам дл разработки грунтов (трамбование, разрушение) импульсными нагрузками.The invention relates to construction, mining, road engineering, in particular to hydraulic devices for the development of soils (compacting, destruction) pulsed loads.

Известно гидравлическое ударное устройство, включаницее корпус с каналами , боек с поршнем, напорный и сливной аккумул торы, золотник, в котором выполнено несколько параллельных напорных и СЛИВ1&1Х каналов, слив(ше и напорные магистрали, сообщающиес с полостью золотника П 1.A hydraulic percussion device is known, including a housing with channels, a firing pin with a piston, a pressure and drain batteries, a spool in which several parallel pressure and SLV1 & 1X channels are made, a drain (above and pressure lines communicating with the cavity of the slide P 1.

Недостатком этого устройства вл етс сложность конструкции, невысока надежность, вызванна наличием золотникового распределительного узла.A disadvantage of this device is the design complexity, low reliability, caused by the presence of a spool-type distribution unit.

Наиболее близким к с редлагаемому по технической сущности и достигаемому результату вл етс гидроударное устройство, содержащее корпус с каналами , размещенный в нем ударныйThe closest to the proposed by the technical essence and the achieved result is a hydropercussion device, comprising a housing with channels, a shock

боек, имеющий поршни и шток, проход щий через перегородку корпуса, распределительный узел в виде цилиндрического упругого запорно-регулирующего элемента, расположенного на корпусе , взвод щую и переливную камеры, напорную и сливную магистрали {2 3Недостатком этого устройства вл етс то, что взвод ща и переливна камеры расположены в пределах цилинд10 рического упругого запорно-регулирующего элемента, что ограничива ет возможности гидроударного устройства: величина хода бойка зависит oj габаритов цилиндрического упругого за15 порно-регулирующего элемента.a firing pin having pistons and a stem passing through the body partition wall, a distribution unit in the form of a cylindrical elastic shut-off and regulating element located on the body, charging and overflow chambers, discharge and drain lines {2 3 The disadvantage of this device is that and overflow chambers are located within the cylindrical elastic shut-off and regulating element, which limits the capabilities of the hydropercussion device: the stroke size of the striker depends on oj dimensions of the cylindrical elastic block 15 o-regulatory element.

Цель изобретени - повквпение эффективности работы устройства за счет обеспечени независимости хода бойка от габаритов упругого запорно20 регулирующего элемента.The purpose of the invention is to improve the efficiency of the device by ensuring the independence of the stroke of the striker on the dimensions of the elastic locking 20 regulating element.

Claims

The goal is achieved as a result of the shock strike pistons being located outside the vnov of the stop and regulating element on its opposite sides, with a sleeve mounted in the housing partition, and the impact drum stem passes through this sleeve. The sleeve may be located at the middle of the elastic shut-off and regulating element. The drawing shows schematically the proposed hydrostatic device. The hydraulic impact device includes a housing 1 with channels 2.3, a shock firing A, a distribution unit in the form of a cylindrical elastic shut-off and regulating element 5 located on the housing 1, charging 6 and overflow 7 chambers, piston 8 with grooves 9, 10 and piston 1 A cylindrical elastic support-regulating element M15, element 5, which is a distribution unit, located on the body, has the possibility of radial deformation and can be communicated via channels 2 and 3 with a platoon 6 and overflow chamber 7, respectively. Pistons 8 and 1 of the striker head 4 are located outside the elastic locking and regulating element 5 on its opposite sides. In the partition wall of the housing 1, for example, at the level of the middle of the elastic locking element 5, the separator sleeve 12 is fixedly mounted (for example pressed), and the pistons 8 and II are connected by a rod 13 that passes through the sleeve 12. The element 5 has an annular control cavity 14 formed by the outer surface the cylindrical element 5 and the inner surface of the glass 15 attached to the housing 1. The control cavity 1A through the canal 16 and the tuning throttle 17 is in communication with the charging chamber 6 and the pressure line 18, and through the channel 19, the annular groove 9 (or 10 J piston 8 has the ability to communicate with the discharge line 20. In the upper part of the housing 1 The chamber 21 is located filled with compressed gas and is an energy accumulator.The operation of the hydropercussion device is as follows: Under the action of the treated medium, the impact head 4 moves the piston 8 through the piston and rod 13, which interrupts the drain line 20. The trails 18 fluid move into the charging chamber 6, and through the anus 16 - into the control space 14, with this element 5 overlapping the openings 2 and 3 of the charging 6 and the overflow of the chambers 7. At the end of the platoon the piston 8 passes through the rotor 10 communicates cavity 14 with the inlet line 20, pressure ad hell by element 5 drops, channels 2 and J are connected to each other. Under the action of compressed gas from chamber 2I, piston 8 makes a working stroke, displaces fluid from chamber 6 into chamber 7 through channels 2.3 and space between case 1 and element 5. Polo pressure increase 14 is constrained by the choke 17, which is the element of the delay in channel 16. The fluid from chamber 7 is pushed to the drain during the charging period of the device. Further, the working cycle is repeated. The proposed design makes it possible to reduce the dimensions of a cylindrical elastic shut-off and regulating element, and also makes it possible to develop hydropercussion devices with different values of the stroke of the striker with one size of a cylindrical elastic shut-off and regulating element, which greatly expands the possibilities of using hydropercussion devices. Claim 1. Hydraulic impact device, comprising a housing with channels, a percussion block placed in it, having pistons and a rod passing through the housing partition, a distribution unit in the form of a cylindrical elastic shut-off and regulating element located on the housing, charging and overflowing chambers, pressure and discharge lines, distinguished by the fact that, in order to increase the efficiency of the device by ensuring the independence of the stroke of the striker on the dimensions of the elastic locking element, pistons. striker disposed for predela1 m regudiruyuschego elastic shut-off member from opposite sides, rec the partition in the housing montirova