SU116774A1 - Hydraulic rack - Google Patents

Hydraulic rack

Info

Publication number
SU116774A1
SU116774A1 SU596260A SU596260A SU116774A1 SU 116774 A1 SU116774 A1 SU 116774A1 SU 596260 A SU596260 A SU 596260A SU 596260 A SU596260 A SU 596260A SU 116774 A1 SU116774 A1 SU 116774A1
Authority
SU
USSR - Soviet Union
Prior art keywords
rack
piston
cavity
hydraulic
pump
Prior art date
Application number
SU596260A
Other languages
Russian (ru)
Inventor
А.С. Виноградов
А.А. Сидоров
Original Assignee
А.С. Виноградов
А.А. Сидоров
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by А.С. Виноградов, А.А. Сидоров filed Critical А.С. Виноградов
Priority to SU596260A priority Critical patent/SU116774A1/en
Application granted granted Critical
Publication of SU116774A1 publication Critical patent/SU116774A1/en

Links

Landscapes

  • Press Drives And Press Lines (AREA)

Description

Дл  Креплени  очистных шахтных выработок примен ют гидравлические стойки, снабженные гидросистемой дл  осуществлени  раздвижки и распора.For the fastening of the clearing mine workings, hydraulic pillars are used, equipped with a hydraulic system for spreading and thrusting.

Предлагаема  стойка обеспечивает ускорение процесса раздвижки и распора при малых усили х. Это достигаетс  тем, что стойка выполнена с двум  концентрически установленными цилиндрами с поршн ми, работающими последовательно от одного, гидронасоса с посто нной производительностью .;The proposed rack provides an acceleration of the process of separation and thrust at low forces. This is achieved by the fact that the post is made with two concentrically mounted cylinders with pistons operating in series from one hydraulic pump with a constant capacity;

На чертеже изображена схема предлагаемой стойки.The drawing shows the scheme of the proposed rack.

Насос /, засасыва  жидкость из внутренней полости стойки, через клапан 2 подает ее в полость поршн -штока 3. В это врем  усилие пружины золотника 4 держит его в нижнем положении и жидкость, подаваема  насосом 1 в полость поршн -штока 3, оказываетс  изолированной от полости между основным поршнем и донышком стойки. В результате выдвижени  поршн -штока 3 основной поршень 5 перемещаетс  вверх, и в образующийс  объем между поршнем 5 и донышком стойки из внутренней полости ее через обратный клапан 6 засасываетс  жид15;ость.The pump /, sucking fluid from the internal cavity of the rack, through the valve 2 supplies it to the cavity of the piston-rod 3. At this time, the spring force of the spool 4 keeps it in the lower position and the fluid supplied by pump 1 to the cavity of the piston-rod 3 is isolated from the cavity between the main piston and the bottom of the rack. As a result of the extension of the piston rod 3, the main piston 5 moves upwards and a liquid is drawn into the resulting volume between the piston 5 and the bottom of the rack from its internal cavity through the check valve 6.

После сонрикосновени  с кровлей в результате-повытпёни  давлени  нагнетани  пружина золотника 4 сжимаетс , и жидкость, нагнетаема  насосом /, поступает уже не только под поршень-шток 3, но и через золотник 4 и клапан 7 в полость под поршень 5, создава  усилие распора. После достижени  усили  распора выше расчетного вследствие давлени  кровли на стойку давление рабочей жидкости под поршнем становитс  больше, величины, на которую отрегулирован предохранительный клапан 8, и последний, срабатыва , отбрасывает жидкость в полость стойки, служащую резервуаром.After sonrocking with the roof, as a result of the injection pressure, the spring of the spool 4 is compressed, and the fluid pumped by the pump / comes not only under the piston-rod 3, but through the valve 4 and the valve 7 into the cavity under the piston 5, creating a thrust force. After the thrust force reaches above the calculated one, due to the roof pressure on the rack, the pressure of the working fluid under the piston becomes greater than the value by which the safety valve 8 is adjusted, and the last one triggers, throws the fluid into the rack cavity serving as a reservoir.

:Пре дмет изобретени : Invention

Гидравлическа  стрйк а дл  креплени  очистных шахтных выработок , снабженна  гидросистемой дл  осуществлени  раздвижки и распоpa . о т л-и ЧЗюща  с-  тем, что, с целью у гкорени  процесса раздснлоси п распора, она,.выполнена с двум  концентрически установленными цилиндрами с поршн ми, работающими последоБательно от одного г-идроиасоса с посто нной производительностью.Hydraulic pitch for fastening the mine workings, equipped with a hydraulic system for pulling apart and distributing. This means that, in order to ensure the process of separation and expansion, it has been made with two concentrically mounted cylinders with pistons operating sequentially from one g-pump with constant performance.

SU596260A 1958-02-21 1958-02-21 Hydraulic rack SU116774A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU596260A SU116774A1 (en) 1958-02-21 1958-02-21 Hydraulic rack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU596260A SU116774A1 (en) 1958-02-21 1958-02-21 Hydraulic rack

Publications (1)

Publication Number Publication Date
SU116774A1 true SU116774A1 (en) 1958-11-30

Family

ID=48388977

Family Applications (1)

Application Number Title Priority Date Filing Date
SU596260A SU116774A1 (en) 1958-02-21 1958-02-21 Hydraulic rack

Country Status (1)

Country Link
SU (1) SU116774A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297901A (en) * 1991-12-06 1994-03-29 Grubenausbau Gmbh Individual hydraulic prop with filling/drawing valve and pressure fluid return
US5611646A (en) * 1993-07-14 1997-03-18 Richard Voss Grubenausbau Gmbh Support prop with integrated pressure limiting valve and nailed pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5297901A (en) * 1991-12-06 1994-03-29 Grubenausbau Gmbh Individual hydraulic prop with filling/drawing valve and pressure fluid return
US5611646A (en) * 1993-07-14 1997-03-18 Richard Voss Grubenausbau Gmbh Support prop with integrated pressure limiting valve and nailed pipes

Similar Documents

Publication Publication Date Title
US3333425A (en) Hydraulic mine roof supports
SU116774A1 (en) Hydraulic rack
GB842452A (en) Improvements in piston pumps, more particularly for hydraulic pit props
GB925777A (en) Hydraulic jack
GB1171584A (en) Improvements in or relating to Hydro-Pneumatic Shock Absorbers
GB726384A (en) Improvements in pit props and other telescopic struts
SU124899A1 (en) Hydraulic sliding fastener rack
GB794547A (en) Improvements in or relating to extensible pit-props
GB1137538A (en) Improvements in or relating to hydraulic pressure intensifiers
SU125226A1 (en) Hydraulic sliding stand
SU472198A1 (en) The control unit plow complex
SU117291A1 (en) Hydraulic piston pump
SU443185A1 (en) Double telescopic hydraulic strut
JPS5554683A (en) Minimal discharge fluid pump
SU1104266A1 (en) Arrangement for breaking rock
US2306572A (en) Quarrying apparatus
GB763603A (en) Improvements relating to telescopic struts such as pit props
US3012404A (en) Hydraulic support
GB742850A (en) Improved device for supporting the roofs of mine galleries
GB894292A (en) Improvements in or relating to hydraulic props, particularly pit props
GB1517404A (en) Piston and cylinder pumping units for hydraulic lifting devices
SU387119A1 (en) MINE HYDRAULIC POST
SU1176399A1 (en) Hydraulic time relay
SU108229A1 (en) Submersible pump
GB956482A (en) A hydraulic pit prop