SU179894A1 - PROMSTROY NI AND PROJECT » - Google Patents

PROMSTROY NI AND PROJECT »

Info

Publication number
SU179894A1
SU179894A1 SU938992A SU938992A SU179894A1 SU 179894 A1 SU179894 A1 SU 179894A1 SU 938992 A SU938992 A SU 938992A SU 938992 A SU938992 A SU 938992A SU 179894 A1 SU179894 A1 SU 179894A1
Authority
SU
USSR - Soviet Union
Prior art keywords
piston
promstroy
project
plunger
pusher
Prior art date
Application number
SU938992A
Other languages
Russian (ru)
Inventor
В. Ганжа П.
Original Assignee
Донецкий государственный проектный , научно исследовательский
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 Донецкий государственный проектный , научно исследовательский filed Critical Донецкий государственный проектный , научно исследовательский
Priority to SU938992A priority Critical patent/SU179894A1/en
Application granted granted Critical
Publication of SU179894A1 publication Critical patent/SU179894A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/32—Constructional features with means for avoiding excessive shocks on completion of movements

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Description

Гидравлические домкраты, состо щие из корпуса, помещенного в него грузового поршн  и тормозного механизма, обеспечивающего самоторможение поршн  в необходимом положении, известны. Самоторможение поршн  в них осуществл етс  изменением направлени  действи  нагнетательной жидкости при визуальном наблюдении за величиной подъема груза, что ие всегда приемлемо. Например , нри защите зданий и сооружений от вредного вли ни  подземных горных выработок требуетс  поднимать и выравнивать искривленные надземные части зданий и сооружений с последующим заполнением зазоров , образующихс  между подн той частью здани  и ее фундаментом, высокомарочпым бетоном или другим материалом. Подъем и выравнивание деформированных частей производ т по заранее заданным программам, по которым требуетс  строго определенна  величина подъема каждой части здани  или сооружени . Такую задачу с помощью известных домкратов выполнить невозможно.Hydraulic jacks consisting of a casing, a cargo piston placed in it and a brake mechanism ensuring the braking of the piston in the required position are known. The braking of the piston in them is carried out by changing the direction of the action of the injection fluid while visually observing the magnitude of the lifting of the load, which is not always acceptable. For example, protecting buildings and structures from the harmful effects of underground mine workings requires raising and leveling the curved above-ground parts of buildings and structures, followed by filling the gaps between the raised part of the building and its foundation, high-quality concrete or other material. The lifting and leveling of the deformed parts are carried out according to predetermined programs, which require a strictly defined amount of lifting of each part of the building or structure. Such a task with the help of well-known jacks can not be performed.

Целью изобретени   вл етс  создание гидравлического домкрата, в котором самоторможение грузового поршн  производитс  автоматически в заранее заданном положении.The aim of the invention is to create a hydraulic jack in which the self-braking of the cargo piston is performed automatically in a predetermined position.

щаетс  с нагнетательной полостью. Относительно штока могут перемещатьс  грузовой подпружиненный поршень п прикрепленный к нему плунжер, воспринимающий нагрузку от поднимаемого груза. В упорный шток встроен переливной клапан, управл емый толкателем, который  вл етс  одним из элементов тормозного механизма. Клапан взаимодействует со ступенчатым приливом - другим элементом тормозного механизма, выполненным па порщне. Ту или иную ступень прилива можно подводить под толкатель поворотом плунже ра с поршнем относнтельно корпуса, свер  сь со шкалой, нанесенной на неподвижной частиshchas with the injection cavity. A spring-loaded piston and a plunger attached to it can be moved relative to the rod, which receives the load from the lifted load. An overflow valve, controlled by a pusher, is integrated into the thrust rod, which is one of the elements of the brake mechanism. The valve interacts with a stepped tide - another element of the brake mechanism, made on the top. One or another stage of the tide can be brought under the pusher by turning the plunger with the piston relative to the housing, compared with the scale applied to the fixed part

домкрата и отградуированной в соответствии с рассто ни ми от ступеней прнлнва до нижнего торца толкател  перепускного клапана. На чертеже изображен домкрат в аксонометрии , с вырезом.jack and calibrated in accordance with the distance from the steps of the primer to the lower end of the pusher of the relief valve. The drawing shows a jack in axonometry, with a notch.

Гидравлический домкрат состоит из корпуса /, пустотелого плунжера 2, грузового поршн  3, упорного штока 4, толкател  5, переливпого клапана 6, пружины 7 возврата плунжера, уплотн юшей части 8 и резиновыхThe hydraulic jack consists of a body /, a hollow plunger 2, a cargo piston 3, a thrust rod 4, a pusher 5, an overflow valve 6, a spring 7 for the return of the plunger, a sealing part 8 and rubber

манжет 9, 10 и //.cuffs 9, 10 and //.

Домкрат работает следующим образом. Масло, нагнетаемое насосной станцией, одновремеппо действует на дно плунжера 2 и поршень 3 и производит их подъем до техThe jack works as follows. Oil pumped by the pumping station simultaneously acts on the bottom of the plunger 2 and the piston 3 and lifts them up to

SU938992A 1965-01-22 1965-01-22 PROMSTROY NI AND PROJECT » SU179894A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU938992A SU179894A1 (en) 1965-01-22 1965-01-22 PROMSTROY NI AND PROJECT »

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU938992A SU179894A1 (en) 1965-01-22 1965-01-22 PROMSTROY NI AND PROJECT »

Publications (1)

Publication Number Publication Date
SU179894A1 true SU179894A1 (en) 1966-02-28

Family

ID=40740068

Family Applications (1)

Application Number Title Priority Date Filing Date
SU938992A SU179894A1 (en) 1965-01-22 1965-01-22 PROMSTROY NI AND PROJECT »

Country Status (1)

Country Link
SU (1) SU179894A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538047A1 (en) * 1982-12-15 1984-06-22 Manitou Bf Double-acting jack comprising an automatic device limiting the displacement of its shaft, and its application to lifting trucks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538047A1 (en) * 1982-12-15 1984-06-22 Manitou Bf Double-acting jack comprising an automatic device limiting the displacement of its shaft, and its application to lifting trucks

Similar Documents

Publication Publication Date Title
SU179894A1 (en) PROMSTROY NI AND PROJECT »
US2373455A (en) Hoist
US6371698B1 (en) Post stressed pier
SE7503850L (en) HYDRAULIC JUDGMENT.
GB1072375A (en) Lifting platforms for automobiles
US3382627A (en) Sand column support
DE836473C (en) Procedure for avoiding or largely reducing the stress on basic structures when strains and pressures occur in the subsoil in subsidence areas
KR830007422A (en) Hydraulic system with oil replenishment for multi-stage hydraulic jacks
US3449910A (en) Hydraulic force exerting apparatus
SU436791A1 (en) Hydraulic jack
US2266094A (en) Hydraulic pump
ES507895A0 (en) IMPROVEMENTS IN MOTOR FACILITIES WITH HYDRAULIC AND SIMILAR JACKS.
US2463797A (en) Jack
US2330518A (en) Hydraulic jack
US3357313A (en) Roof support assemblies suitable for use in mines
GB1383884A (en) Hydraulic cylinder device for lifting and lowering a pivotable drivers cab
US3521415A (en) Sand column support
US1937725A (en) Deep well oil pump
US140082A (en) Improvement in elevators for buildings
DE721340C (en) Protection device for piles standing in the water
US12326A (en) Force-jp
US1812667A (en) Deep well pump
SU114647A1 (en) Shaft sliding hydraulic strut with prerun
SU117075A1 (en) Hydraulic lift
SU918395A1 (en) Pile foundation