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SU1677225A1 - Hole reamer - Google Patents

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Publication number
SU1677225A1
SU1677225A1 SU894696570A SU4696570A SU1677225A1 SU 1677225 A1 SU1677225 A1 SU 1677225A1 SU 894696570 A SU894696570 A SU 894696570A SU 4696570 A SU4696570 A SU 4696570A SU 1677225 A1 SU1677225 A1 SU 1677225A1
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SU
USSR - Soviet Union
Prior art keywords
air
housing
section
air distributor
blocks
Prior art date
Application number
SU894696570A
Other languages
Russian (ru)
Inventor
Евгений Александрович Иваненко
Алевтина Дмитриевна Зайцева
Людмила Викторовна Сиденко
Original Assignee
Научно-Исследовательский Горнорудный Институт
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Filing date
Publication date
Application filed by Научно-Исследовательский Горнорудный Институт filed Critical Научно-Исследовательский Горнорудный Институт
Priority to SU894696570A priority Critical patent/SU1677225A1/en
Application granted granted Critical
Publication of SU1677225A1 publication Critical patent/SU1677225A1/en

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Abstract

Изобретение относитс  к горной промышленности и может быть использовано в пневмоударных механизмах дл  расширени  скважин. Цель изобретени  - повышение устойчивости работы пневмоударных механизмов путем автоматического перераспределени  расхода воздуха. Расширитель включает корпус, направл ющий пилот, комплект пневмоударникоз, установленных на корпусе, и воздухораспределитель с неподвижными блоками 7 и подвижными блоками 21, охваченными бесконечной гибкойтж ой 22. Корпус состоит из подвод щих секций, в каждой из которых имеетс  входна  11 и выходна  12 камеры и дросселирующее устройство, состо щее из втулки 13 и подпружиненного клапана 14 с отверсти ми 15. Клапан закреплен на штоке 16, на котором установлены пружины 17 и 18 и гайка 19. При нарушении равномерности работы пкевмоударников благодар  наличию гибкой т п/: 22 происходит автоматическое выравнивание подачи воздуха в каждый пневмоударник. 3 ил. сл СThe invention relates to the mining industry and can be used in pneumatic impact mechanisms for well expansion. The purpose of the invention is to increase the stability of the pneumatic impact mechanisms by automatically redistributing the air flow. The expander includes a housing, a pilot guide, a set of pneumatic shock mounted on the housing, and an air distributor with fixed blocks 7 and moving blocks 21, covered by an infinite flexible 22. The housing consists of supply sections, each of which has an input 11 and an output 12 of the chamber and a throttling device consisting of a sleeve 13 and a spring-loaded valve 14 with openings 15. The valve is fixed on the stem 16, on which springs 17 and 18 and a nut 19 are mounted. gift presence flexible t n / 22 is an automatic alignment of air supplied to each hammer. 3 il. sl C

Description

Изобретение относитс  к горной промышленности и может быть использовано в пневмоударных механизмах, предназначенных дл  расширени  скважин. - Целью изобретени   вл етс  повышение надежности работы расширител  путем автоматического перераспределени  расхода воздуха в пневмоударных механизмах .The invention relates to the mining industry and can be used in air impact mechanisms designed to expand wells. - The aim of the invention is to increase the reliability of the expander by automatically redistributing the air flow in the pneumatic impact mechanisms.

На фиг. 1 представлен расширитель скважин, общий вид; на фиг. 2 - сечение А-А на фиг. 1; на фиг. 3 - сечение Б-Б на фиг, 2.FIG. 1 shows the well extender, general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. 2.

Расширитель скважин включает корпус 1, направл ющий пилот 2, комплект равномерно размещенных в корпусе пневмоударников 3 с рабочими камерами 4 и поршн ми 5, воздухораспределитель 6 с неподвижными блоками 7 и подвод щими секци ми 8, 9, 10. В каждой секции имеютс  входна  11 и выходна  12 камеры и дросселирующее устройство , состо щее из втулки 13 и подпружиненного клапана 14 с отверсти ми 15. Клапан закреплен на штоке 16, на котором установлены пружины 17 и 18 и гайка 19. Торцы секций закрыты крышками 20. На концах штоков 16 установлены подвижные блоки 21, которые посредством бесконечной гибкой т ги 22 св заны с неподвижными блоками 7.The expander includes a housing 1, a pilot pilot 2, a set of pneumatic impactors 3 evenly placed in the housing with working chambers 4 and pistons 5, an air distributor 6 with fixed blocks 7 and feed sections 8, 9, 10. Each section has an inlet 11 and an outlet 12 of the chamber and a throttling device consisting of a sleeve 13 and a spring-loaded valve 14 with openings 15. The valve is fixed on the stem 16, on which springs 17 and 18 and nut 19 are mounted. The ends of the sections are closed with caps 20. At the ends of the rods 16 are mounted moving blocks 21, cat These are connected to fixed blocks by means of an endless flexible gigi 7.

Расширитель скважин работает следующим образом.The expander wells works as follows.

Расширитель устанавливают на забой, включают вращение и подают сжатый воздух в воздухораспределитель 6.The expander is installed on the bottom, include rotation and serves compressed air into the air distributor 6.

ОABOUT

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Сжатый воздух из входной камеры 11 каждой подвод щей секции 9,8, 10 через отверсти  15 подпружиненного клапана 14 и зазор между последними и втулкой 13 поступает в выходную камеру 12 и затем соответственно в рабочую камеру А каждого из комплекта пневмоударников 3, привод  в возвратно-поступательное движение поршень 5, под действием которого осуществл ют разрушение породы..Compressed air from the inlet chamber 11 of each inlet section 9.8, 10 through the openings 15 of the spring-loaded valve 14 and the gap between the latter and the sleeve 13 enters the output chamber 12 and then respectively into the working chamber A of each of the set of air hammers 3, the return drive translational movement of the piston 5, under the action of which the destruction of the rock is performed ..

При равномерной работе пневмоударников 3 зазор между подпружиненным клапаном 14 и втулкой 13 дросселирующего устройства каждой из подвод щих секций 8, 9, 10 одинаков и, следовательно, в рабочую камеру 4 каждого пневмоударника 3 поступает равное количество сжатого воздуха при одинаковом давлении.When the hammers 3 are evenly operated, the gap between the spring-loaded valve 14 and the sleeve 13 of the throttling device of each of the supply sections 8, 9, 10 is the same and, therefore, an equal amount of compressed air is supplied to the working chamber 4 of each hammer 3.

Если же равномерность работы пневмоударников 3 нарушаетс  вследствие воз- можных деформаций поршн  5, изменений температурного режима пневмоударников 3 или других факторов, то зазор между подпружиненным клапаном 14 и втулкой 13 измен етс  пропорционально сопротивлению потребител . Если, например, сопротивление потреблению сжатого воздуха пневмоу- дарником 3, св занным с подвод щей секцией 8, увеличилось, то расход воздуха там уменьшилс  и давление в выходной ка- мере 12 возросло, а в выходных камерах 12 секций 9 и 10 расход сжатого воздуха и скорость его движени  мгновенно возрастают , что вызывает перемещение клапанов 14If the operation of the hammers 3 is disturbed due to possible deformations of the piston 5, changes in the temperature regime of the hammers 3 or other factors, then the gap between the spring-loaded valve 14 and the sleeve 13 changes in proportion to the resistance of the consumer. If, for example, the resistance to the consumption of compressed air by a pneumatic air distributor 3 connected to the inlet section 8 has increased, the air consumption there has decreased and the pressure in the output chamber 12 has increased, and in the output chambers 12 sections 9 and 10 the compressed air consumption and the speed of its movement increases instantaneously, causing the valves to move 14

в направлении камер 12 в подвод щих секци х 9 и 10, уменьша  зазор между подпружиненными клапанами 14 и втулками 13 упом нутых секций. С помощью бесконечной гибкой т ги 22, огибающей неподвижные 7 и подвижные блоки 21, клапан 14 перемещаетс  в сторону увеличени  зазора в подвод щей секции 8, что автоматически восстанавливает равномерную работу всех пневмоударников 3.in the direction of the chambers 12 in the supply sections 9 and 10, reducing the gap between the spring-loaded valves 14 and the sleeves 13 of the said sections. With the help of endless flexible traction 22, the envelope of the fixed 7 and movable blocks 21, the valve 14 moves in the direction of increasing the gap in the inlet section 8, which automatically restores the uniform operation of all air hammers 3.

Claims (1)

Формула изобретени  Расширитель скважин, включающий размещенные в корпусе пневмоударные механизмы и воздухораспределитель, полость которого сообщена с рабочими камерами пневмоударных механизмов, отличающийс  тем, что, с целью повышени  надежности работы расширител  путем автоматического перераспределени  расхода воздуха в пневмоударных механизмах, он снабжен блоками, а воздухораспределитель выполнен секционным с подводом каждой секции к рабочей камере каждого пневмоу- дарного механизма, при этом один из блоков неподвижно размещен в центральной части воздухораспределител , а другие установлены в секци х с возможностью пере- мещени  и каждый из них св зан с неподвижным блоком посредством бесконечной гибкой т ги, причем кажда  секци  воздухораспределител  имеет подпружиненный клапан, который св зан с блоком, установленным в этой секции.DETAILED DESCRIPTION OF THE INVENTION A borehole extender comprising air-percussion mechanisms located in a housing and an air distributor, the cavity of which is communicated with working chambers of air-percussion mechanisms, characterized in that, in order to increase the reliability of the reamer by automatically redistributing the air flow in the pneumatic impact mechanisms, it is equipped with blocks and the air distributor sectional with the supply of each section to the working chamber of each pneumatic mechanism, while one of the blocks is stationary The center is located in the center of the air distributor, while the others are installed in sections that can be moved, and each of them is connected to a fixed block by means of an infinite flexible rod, each section of the air distributor having a spring-loaded valve that is connected to the block installed in this section. . 7 18Я Я718I'm I А-АAa
SU894696570A 1989-05-29 1989-05-29 Hole reamer SU1677225A1 (en)

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Application Number Priority Date Filing Date Title
SU894696570A SU1677225A1 (en) 1989-05-29 1989-05-29 Hole reamer

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US6557640B1 (en) 1998-12-07 2003-05-06 Shell Oil Company Lubrication and self-cleaning system for expansion mandrel
US6568471B1 (en) 1999-02-26 2003-05-27 Shell Oil Company Liner hanger
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