SU495810A3 - Hydraulic impact device - Google Patents

Hydraulic impact device

Info

Publication number
SU495810A3
SU495810A3 SU1789159A SU1789159A SU495810A3 SU 495810 A3 SU495810 A3 SU 495810A3 SU 1789159 A SU1789159 A SU 1789159A SU 1789159 A SU1789159 A SU 1789159A SU 495810 A3 SU495810 A3 SU 495810A3
Authority
SU
USSR - Soviet Union
Prior art keywords
chamber
fluid
piston
recess
idle
Prior art date
Application number
SU1789159A
Other languages
Russian (ru)
Inventor
Артур Рейнолдс Пайонел
Ричард Джеймс Дэвид
Original Assignee
А.Ф.Гидрауликс Лимитед (Фирма)
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.Ф.Гидрауликс Лимитед (Фирма) filed Critical А.Ф.Гидрауликс Лимитед (Фирма)
Application granted granted Critical
Publication of SU495810A3 publication Critical patent/SU495810A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L27/00—Distribution or expansion valve-gear peculiar to free-piston machines or engines and not provided for in F01L21/00 - F01L25/00
    • F01L27/04—Delayed-action controls, e.g. of cataract or dashpot type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston
    • F03C1/0073—Reciprocating-piston liquid engines with single cylinder, double-acting piston one side of the double-acting piston being always under the influence of the liquid under pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Fluid-Damping Devices (AREA)
  • Safety Valves (AREA)

Description

Если ход поршневого элемента превышает границу рабочего хода, например, из-за разрушени  инструмента, буртик 9 входит в углубление 8 и запирает жидкость, котора  относительно медленно протекает через зазор вокруг буртика 9 или через любой другой путь утечки жидкости, имеюп,ийс  в устройстве . В то же врем , когда давление в углублении 8 начнет повышатьс , откроетс  клапан 11, камера 7 холостого хода сообщитс  с углублением 8 через канал 10.If the stroke of the piston element exceeds the stroke of the working stroke, for example, due to the destruction of the tool, the collar 9 enters the recess 8 and blocks the fluid that flows relatively slowly through the gap around the collar 9 or through any other fluid leakage path in the device. At the same time, when the pressure in the recess 8 begins to rise, the valve 11 opens, the idle chamber 7 communicates with the recess 8 through the channel 10.

А так как сечение буртика значительно больше эффективной плош;ади поршн -ударника , наход щегос  в камере холостого хода, давление жидкости, действующее на буртик справа, окажетс  больше давлени , действующего слева. Поршень-ударник начнет медленно перемешатьс  влево, и опасность повреждени  корпуса устройства будет устранена.And since the cross section of the collar is significantly larger than the effective plane, if the piston of the hammer that is in the idling chamber, the fluid pressure acting on the right collar will be greater than the pressure acting on the left. The impactor piston will slowly move to the left, and the danger of damage to the device body will be eliminated.

Предмет изобретени Subject invention

Claims (3)

1. Гидравлическое ударное устройство, содержащее корпус с соосными камерами рабочего и холостого ходов, порщень-ударник, перемещаемый в них, держатель инструмента и клапан, регулирующий ток жидкости, отличающеес  тем, что, с целью повышени  эффективности демпфироваии  без увеличени  габаритов устройства, на торце камеры холостого хода, противолежап1ем камере рабочего хода, выполнено углубление, а на штоке поршн -ударника па участке камеры холостого хода выполнен кольцевой буртик, соответствующий углублению и обеспечивающий демпфирование в нем жидкости.1. A hydraulic percussion device comprising a housing with coaxial chambers of the working and idling strokes, a piston drum moved into them, a tool holder and a valve regulating the fluid flow, characterized in that, in order to increase the efficiency of damping without increasing the device dimensions, at the end an idle chamber, an anti-chamber of the working stroke chamber, a recess is made, and on the piston rod of the impactor, an annular collar is made on the portion of the idle chamber; fluid in it. 2.Устройство по п. 1, отличающеес  тем, что эффективна  рабоча  площадь поршн -ударника в камере холостого хода меньше поперечного сечени  буртика.2. The device according to claim 1, characterized in that the effective working area of the impact piston in the idling chamber is smaller than the cross section of the shoulder. 3.Устройство по пп. 1 и 2, о т л и ч а ю щ е ес   тем, что камера холостого хода сообщена3. The device according to paragraphs. 1 and 2, that is, the fact that the idle chamber is in communication с углублением каналом, а клапан, регулирующий ток жидкости, распо.южен в этом канале .with a recess channel, and a valve that regulates the flow of fluid, is located in this channel. Ж. / / /J. / / / 7878
SU1789159A 1971-05-11 1972-05-10 Hydraulic impact device SU495810A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1421271A GB1396307A (en) 1971-05-11 1971-05-11 Hydraulic percussive implement

Publications (1)

Publication Number Publication Date
SU495810A3 true SU495810A3 (en) 1975-12-15

Family

ID=10037084

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1789159A SU495810A3 (en) 1971-05-11 1972-05-10 Hydraulic impact device

Country Status (9)

Country Link
AU (1) AU462813B2 (en)
CA (1) CA951996A (en)
DE (1) DE2223292C3 (en)
FR (1) FR2139398A5 (en)
GB (1) GB1396307A (en)
IT (1) IT958825B (en)
SE (1) SE397787B (en)
SU (1) SU495810A3 (en)
ZA (1) ZA722588B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1480753A (en) * 1974-11-14 1977-07-27 Hydraulics Ltd A Hydraulically-operated devices
GB2117845B (en) * 1982-04-03 1985-08-29 Af Hydraulics Hydraulic percussive apparatus
CA1259232A (en) * 1986-12-24 1989-09-12 Nikolai P. Ermilov Percussive tool
FR2609661B1 (en) * 1987-01-20 1989-05-26 Sp K Bjur PERCUSSIVE ACTION DEVICE
SE536289C2 (en) 2011-04-05 2013-08-06 Atlas Copco Rock Drills Ab Hydraulic percussion for rock or concrete cutting equipment as well as drilling and breaking equipment
SE536758C2 (en) 2012-11-28 2014-07-15 Atlas Copco Rock Drills Ab Percussion for a hydraulic rock drill, method for operating a percussion and hydraulic rock drill including percussion
CN105916633B (en) * 2014-01-31 2017-11-14 古河凿岩机械有限公司 Fluid pressure type percussion mechanism
CH711414A1 (en) * 2015-08-13 2017-02-15 Hatebur Umformmaschinen Ag Device for generating impulse dynamic process forces.
CN115899151A (en) * 2022-12-05 2023-04-04 山东科技大学 Impact-resistant bidirectional buffer device for hammer crusher

Also Published As

Publication number Publication date
CA951996A (en) 1974-07-30
IT958825B (en) 1973-10-30
FR2139398A5 (en) 1973-01-05
SE397787B (en) 1977-11-21
DE2223292B2 (en) 1977-10-13
AU462813B2 (en) 1975-07-10
DE2223292A1 (en) 1972-11-23
AU4173572A (en) 1973-12-20
GB1396307A (en) 1975-06-04
DE2223292C3 (en) 1978-06-08
ZA722588B (en) 1973-01-31

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