WO2015072955A1 - Dispositif hydraulique pour action par chocs - Google Patents

Dispositif hydraulique pour action par chocs Download PDF

Info

Publication number
WO2015072955A1
WO2015072955A1 PCT/UA2014/000039 UA2014000039W WO2015072955A1 WO 2015072955 A1 WO2015072955 A1 WO 2015072955A1 UA 2014000039 W UA2014000039 W UA 2014000039W WO 2015072955 A1 WO2015072955 A1 WO 2015072955A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
piston
pressure
communication
possibility
Prior art date
Application number
PCT/UA2014/000039
Other languages
English (en)
Russian (ru)
Inventor
Иван Кириллович СЕДЛЕР
Original Assignee
Общество С Ограниченной Ответственностью "Украинская Импульсная Индустрия"
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 Общество С Ограниченной Ответственностью "Украинская Импульсная Индустрия" filed Critical Общество С Ограниченной Ответственностью "Украинская Импульсная Индустрия"
Publication of WO2015072955A1 publication Critical patent/WO2015072955A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
    • 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
    • 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
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/18—Valve arrangements therefor involving a piston-type slide valve
    • 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
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/16—Valve arrangements therefor
    • B25D9/20—Valve arrangements therefor involving a tubular-type slide valve

Definitions

  • the invention relates to the mining industry and is intended for impact destruction of rocks and artificial materials. It can also be used to generate vibrations in boreholes that are transformed into power shock waves for exposure to rocks through a fluid waveguide.
  • the described hydraulic percussion mechanism has an additional brake chamber, in which a device for braking and starting the striking piston is integrated.
  • This device is made in the form of an annular valve with throttle openings.
  • the disadvantages of this shock mechanism include the low reliability of its device for braking and starting the striking piston, as well as the high probability of leakage of the working fluid through the gaps between the parts of the mechanism and the inability to automatically remove it from the mechanism during its operation.
  • this analogue provides for a bore on the inner surface of the sleeve and a high pressure stabilizer, which is hydraulically connected to the idle chamber. Also, a significant drawback of this analogue is the difficulty of starting the shock mechanism when, at the time of starting, the piston closes the channel for pumping the working fluid into the working chamber.
  • IPC E21 C 3/20 based on the set of essential features for the claimed utility model, is a percussion device that contains a housing with cavities, a sleeve with channels and centering sleeves with seals.
  • a piston-striker is installed on the bushings with its own rods of different diameters.
  • the sleeve, centering sleeves and the body of the piston striker form the chamber working and idle.
  • the idle chamber is made with the possibility of its communication with the pressure line
  • the working chamber is made with the possibility of its periodic communication through a distributor with pressure and drain lines.
  • Pressure accumulators and / or gas pressure stabilizers are not described in this device.
  • the disadvantages of the closest analogue include a high probability of leakage (leakage) of the working fluid between the working and idle chambers, due to the design features of the percussion mechanism. Therefore, to ensure the possibility of collecting leaking fluid, an annular groove is made in the sleeve, which forms a control cavity with the housing. Automatic removal (drainage) of leaked working fluid from the control cavity is carried out using an additional outlet in the distributor. This tap is made with the possibility of communication of the control cavity with the pressure line during the idle piston-striker and with the drain line during the working stroke of the piston-striker.
  • a significant drawback of the closest analogue is also the difficulty of starting the shock mechanism in the case when the piston blocks the communication of the working chamber with the pressure line.
  • the basis of the invention is the task to improve the hydraulic shock device by equipping it with additional sealing and starting elements, as well as simple and effective means for collecting and automatically removing the working fluid from the mechanism, which seeps through the gaps of the rubbing surfaces. These improvements reduce the likelihood of fluid overflow between the chambers, reduce hydraulic resistance, and increase the efficiency, reliability, and service life of the device.
  • the technical result is achieved by the fact that in the known hydraulic shock device, which contains a housing with working cavities and channels installed in the housing of the sleeve with channels and bushings, together forming a high-pressure accumulator with the housing, which is made with the possibility of constant communication with the pressure hydraulic line, and low pressure hydraulic accumulator, which is made with the possibility of continuous communication with the drain line and periodic communication through a distributor with a pressure head an idler mounted on the centering bushings with its rods of different diameters by a piston-striker, formed by a sleeve, centering sleeves and piston-striker, an idle chamber with the possibility of its communication with a high-pressure accumulator, and a working chamber with the possibility of its communication through a distributor with a low-pressure accumulator or with a pressure line, according to the invention, a compression ring is installed on the piston of the striker with the possibility of its sliding inside the sleeve, the sleeve and centering sleeves are installed claimed in use the
  • a recess is made on the end surface of the centering sleeve forming the working chamber, the cavity of which is constantly in communication with the cavity of the launch channel.
  • the wear of the inner surface of the sleeve is also reduced.
  • the proposed placement of the sleeve and centering sleeves in the housing using the sealing sleeves provides the possibility of technologically simple implementation of the drainage chambers between the centering and sealing sleeves.
  • the presence of these chambers provides the ability to collect the working fluid, which is squeezed out of the chambers of the working and idle through the gaps between the rods and centering sleeves.
  • the communication of these chambers with drainage and drain lines provides automatic removing leaking working fluid from the percussion mechanism in the process of its operation.
  • an additional undercut with the possibility of a constant communication of its cavity with the cavity of the launch channel, provide the ability to start the device even if the piston is in its extreme (highest) initial position.
  • the hydraulic shock device comprises a housing 1 with cavities 2, 3, 4, 5 and channels 6, 7, 8.
  • Channel 6 is used to connect the cavity 2 to the pressure (pumping working fluid) line 9, channel 7 to connect the cavity 3 through the spool the distributor 1 0 to the drain line 1 1, and the channel 8 for connecting the device to the drain line 12.
  • the cavity 4 is connected through the distributor 10 to the pressure line 13 or to the drain line 14 (shown in dashed line in the drawing).
  • the number 15 indicates the hydraulic motor (spool drive distributor 10).
  • a sleeve 16 with radial channels 17, 18 and centering sleeves 19, 20 are installed.
  • the sleeve 16 and centering sleeves 19, 20 are installed in the housing 1 using sealing sleeves 21 and 22 with oil seals 23.
  • the sleeve 22 is made in the form of a cover-cap .
  • a piston-striker 26 is installed with its rods 24 and 25.
  • the diameter of the rod 24 is made larger than the diameter of the rod 25. Due to the difference in the sizes of these diameters, the areas of the lateral (working) surfaces of the piston 26 are also different.
  • a compression ring 27 is installed in the annular groove of the piston 26 with the possibility of its sliding inside the sleeve 16.
  • the sleeve 16 with a cavity 2 form a high-pressure accumulator in the housing 1.
  • the sleeve 16, the sealing sleeve 22 and the cavity 3 form in the housing 1 a hydraulic accumulator of low pressure.
  • the inner wall of the sleeve 1 6, the end surface of the centering sleeve 20, the body of the rod 25 and the side surface of the piston 26 form a chamber 28 of the stroke.
  • This chamber is configured to communicate through channels 17 and through a distributor 10 with a pressure line 13 or with a cavity 3 of a low pressure accumulator.
  • An annular undercut 29 is made on the end surface of the centering sleeve 20.
  • An inclined launch channel 30 is made in the wall of the sleeve 16 so that the entrance to this channel is in the cavity 4 of the housing, and the exit is in the cavity of the undercut 29.
  • the inner wall of the sleeve 16, the end surface of the centering sleeves 1 9, the body of the rod 24 and the side surface of the piston 26 form an idle chamber 3 1.
  • This camera is made with the possibility of its communication through channels 18 with a cavity 2 of the high pressure accumulator.
  • the chamber 32 is configured to communicate through the drainage channel 34 to the channel 8.
  • the chamber 33 is configured to communicate through the drainage channels 35 of the sealing sleeve 22 with a cavity 3 low pressure accumulators.
  • the shank of the device, which strikes the piston-striker 26, is indicated by the number 36. In the drawing, the position of the piston-striker 26 is shown at the time it strikes the shank 36. Description of the operation of the device.
  • the proposed hydraulic shock device operates as follows.
  • the working fluid along the pressure line 9, through the channel 6 in the housing 1, the cavity 2 of the high pressure accumulator and through the channel 18 in the sleeve 16 is pumped into the idle chamber 3 1.
  • the cavity 4 and the radial channels 17, the working fluid is pumped into the chamber 28 of the stroke. Due to the fact that the area of the lateral (working) surface of the piston 26 in the working stroke chamber 28 is larger than the lateral surface of the piston 26 in the idle chamber 3, the striking piston 26 makes its working stroke (downward in the drawing) and strikes the end of the shank 36.
  • the chamber 28 and the cavity 3 of the low pressure accumulator are disconnected.
  • the distributor 1 0 switches, communicating the working chamber 28 through the distributor 10 with a low-pressure accumulator and with a drain line 14.
  • the pressure in the working chamber 28 decreases. Therefore, under the action of the pressure of the working fluid pumped from the line 9 into the idle chamber 31, the striking piston 26 idles (upwards in the drawing). The flow of working fluid between the chambers 28 and 3 1 is prevented by the compression ring 27.
  • the distributor 1 0 switches, reporting the working stroke chamber 28 to the pressure line 13. Again, due to the difference in the area of the lateral surfaces of the piston 26, the striking piston makes a working stroke (down). Further cycles are repeated.
  • the piston body 26 When making the stroke, the piston body 26 overlaps the radial channel 18, and when idling, the radial channel 17. Thus, in the chambers 28 and 3 1 the working fluid pressure is created, which is necessary to brake the piston-hammer 26 and prevent impacts of the lateral surfaces of the piston 26 schreib end surfaces of the centering sleeves 19 and 20.
  • the working fluid is pumped into the chamber 28 through the start channel 30 directly, or through the channel 30 and additionally through the recess 29.
  • the working fluid leaked through the gaps is collected in the drainage chambers 32 and 33. From the chamber 32 it is discharged into the drainage line 12 through channels 34 and 8, and to the drain line 1 1 from the chamber 33 through channels 35.
  • the invention can find wide application in the mining industry and is intended for impact destruction of rocks and artificial materials. Also, the invention can be used to generate vibrations in boreholes that are converted into power shock waves for exposure to rocks through a liquid waveguide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne un dispositif hydraulique pour action par chocs servant à briser par chocs des roches minières et des matériaux artificiels. Le dispositif comprend un corps dans lequel sont disposés des inserts de centrage et d'étanchéité, une gorge et un piston percuteur définissant dans le corps des chambres de travail et de mode ralenti, ainsi que des accumulateurs hydrauliques haute et basse pression. La chambre de travail communique périodiquement à un répartiteur à piston avec une conduite d'alimentation ou un accumulateur hydraulique basse pression qui est à son tour connecté à une conduite de refoulement. La chambre de mode ralenti est connectée en permanence à un accumulateur hydraulique haute pression et à la conduite d'alimentation. Un anneau de compression est disposé sur le corps du percuteur. Des chambres et des canaux de drainage sont formés entre les inserts de centrage et d'étanchéité. Dans la paroi de la gorge se trouve un canal de passage mettant en communication via le répartiteur la chambre de travail et la conduite d'alimentation. Il est ainsi possible de réduire la résistance hydraulique et le risque d'écoulement de liquide entre les chambres. On garantit également le démarrage du dispositif quelle que soit la position initiale du piston percuteur.
PCT/UA2014/000039 2013-11-14 2014-04-03 Dispositif hydraulique pour action par chocs WO2015072955A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAU201313263 2013-11-14
UAU201313263U UA87002U (ru) 2013-11-14 2013-11-14 Гидравлическое устройство ударного действия

Publications (1)

Publication Number Publication Date
WO2015072955A1 true WO2015072955A1 (fr) 2015-05-21

Family

ID=52298276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/UA2014/000039 WO2015072955A1 (fr) 2013-11-14 2014-04-03 Dispositif hydraulique pour action par chocs

Country Status (2)

Country Link
UA (1) UA87002U (fr)
WO (1) WO2015072955A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU604990A1 (ru) * 1976-04-16 1978-04-30 Ордена Трудового Красного Знамени Московский Геологоразведочный Институт Им.С.Орджоникидзе Устройство дл разрушени горных пород кумул тивной струей
SU1293328A1 (ru) * 1985-10-01 1987-02-28 Предприятие П/Я В-8664 Устройство ударного действи
UA28126C2 (fr) * 1998-07-21 2000-10-16
US20070251731A1 (en) * 2004-08-25 2007-11-01 Henriksson Stig R Hydraulic Impact Mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU604990A1 (ru) * 1976-04-16 1978-04-30 Ордена Трудового Красного Знамени Московский Геологоразведочный Институт Им.С.Орджоникидзе Устройство дл разрушени горных пород кумул тивной струей
SU1293328A1 (ru) * 1985-10-01 1987-02-28 Предприятие П/Я В-8664 Устройство ударного действи
UA28126C2 (fr) * 1998-07-21 2000-10-16
US20070251731A1 (en) * 2004-08-25 2007-11-01 Henriksson Stig R Hydraulic Impact Mechanism

Also Published As

Publication number Publication date
UA87002U (ru) 2014-01-10

Similar Documents

Publication Publication Date Title
US20170080554A1 (en) Hydraulic hammer assembly
RU2623399C1 (ru) Интегрированная бурильная установка для бурения с водоотведением для анкера подошвы выработки
KR101751409B1 (ko) 유압타격장치용 타격몸체
NO178673B (no) Hydraulisk senkebormaskin
RU2580112C1 (ru) Гидравлическое устройство ударного действия
CN114876395A (zh) 一种高寿命辅助套管回收的水泥环偏心滚动挤压破碎工具
RU2623159C1 (ru) Гидромолот
CN108625784B (zh) 一种水力增压射流钻井工具
CN202545203U (zh) 井下液压抽油泵
RU2448230C1 (ru) Гидравлическое ударное устройство
WO2015072955A1 (fr) Dispositif hydraulique pour action par chocs
CN113914824B (zh) 一种可洗井泵下随动密封增产管柱及高效举升方法
CN114909080A (zh) 脉冲液动冲击器及其钻灌一体脉冲灌浆的方法
CN208545791U (zh) 一种适用于破碎锤缸体的导向活塞环
UA111416C2 (uk) Гідравлічний пристрій ударної дії
RU2549649C1 (ru) Погружной пневмоударник
RU97431U1 (ru) Гидравлическое ударное устройство
CN201212369Y (zh) 锥体式液压震击器
RU99527U1 (ru) Гидроударное устройство
RU187066U1 (ru) Погружной пневмоударник
CN203867862U (zh) 一种储液式防抽空抽油泵
RU90485U1 (ru) Устройство для герметизации межтрубного пространства скважины
RU94584U1 (ru) Гидравлическое ударное устройство
RU186987U1 (ru) Глубинное гидроприводное насосное устройство с наземным приводом
RU2258138C1 (ru) Устройство ударного действия

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14862300

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14862300

Country of ref document: EP

Kind code of ref document: A1