SU953206A1

SU953206A1 - Positioning arrangement for drilling machine hydraulic pulse generator

Info

Publication number: SU953206A1
Application number: SU803220024A
Authority: SU
Inventors: Юрий Алексеевич Мамаев; Евгений Демьянович Кудлай; Александр Александрович Приволоцкий; Николай Дмитриевич Крыщенко
Original assignee: Всесоюзный научно-исследовательский институт золота и редких металлов
Priority date: 1980-11-20
Filing date: 1980-11-20
Publication date: 1982-08-23

Description

Изобретение относитс к горной промышленности, а именно,к поддерживающим и направл ющим устройствам бурильных машин.The invention relates to the mining industry, namely, to supporting and guiding devices of boring machines.

Известна распорна колонка,-включающа каретку бурильных машин,перемещаемую при помощи трособлочной системы по сдвЬенным телескопическим стойкам 1 . A well-known spacing column, comprising a carriage of boring machines, moved with the help of a cable-blocking system along double telescopic stands 1.

Недостатком этой распорной колонки вл етс сложность и мала надежность в работе при переходе каретки с цилиндров стоек на штоки и обратно в услови х высокой запыленности и колебаний температуры.The disadvantage of this spacer is the complexity and low reliability in the operation when the carriage transitions from the cylinder racks to the rods and back in conditions of high dustiness and temperature fluctuations.

Известна также распорна колонка, содержаща опорный трубчатый элемент и размещенный в нем поршень со штоком 2.A spacer column is also known, comprising a supporting tubular element and a piston disposed therein with a rod 2.

Наиболее близким по технической сущности и достигаемому результату к изобретению вл етс установочное устройство дл бурильной машины, включающее распорную колонку с рамой, податчик, силовой цилиндр с поршнем и штоком 13.The closest in technical essence and the achieved result to the invention is a mounting device for a boring machine, including a spacer column with a frame, a feeder, a power cylinder with a piston and a rod 13.

Однако в известном устройстве эксцентричное расположение осей буровой машины и распорной колонки вызывает по вление большого крут щего момента на колонке при подаче бурового инструмента на забой, что снижает надежность конструкции.However, in the known device, the eccentric arrangement of the axes of the drilling machine and the spacer causes a large torque on the column when the drilling tool is fed to the face, which reduces the reliability of the design.

Целью изобретени вл етс повышение -надежности в работе и повышение производительности бурени .The aim of the invention is to increase the reliability of the work and increase the productivity of drilling.

Поставленна цель достигаетс тем, что установочное устройство дл бурильных машин, включающее распорную колонку с рамой, податчик, силовой цилиндр с поршнем и штоком, устройство снабжено консольно закрепленной на раме балкой с шарнирно закрепленными на ее конце коромыслом , которое выполнено в виде рычага , имеющего пр мо.линейный участок и криволинейный участок, радиус кривизны которого определ ют по формулеThe goal is achieved by the installation device for drilling machines, including a spacer column with frame, feeder, power cylinder with piston and rod, the device is equipped with a beam console mounted on the frame with a rocker arm hinged at its end, which is made in the form of a lever Mobile line section and curved section, the radius of curvature of which is determined by the formula

. г R tg р. r r tg p

где R - длина пр мо.гшнейного участка коромысла;where R is the length of the straight-line rotary section of the rocker;

cL - угол между коромыслом и балкой в распертом положении колонки.cL is the angle between the beam and the beam in the open position of the column.

Claims

In this case, the power cylinder and the rod are hinged respectively on the beam and the rocker arm, on the curvilinear portion of which the projections are made. The drawing shows the overall device, view. The setting device for drilling machines contains a spacer column 1, in which the carriage 2 with the feeder 3 is placed. A beam 4 is fixed on the rammer frame, carrying the jack 5 with the piston 6, and the hinge 7 fixed at its free end made in the form of a curvilinear lever with protrusions 9, the radius of curvature of which is described by the formula r Rtg-j. In addition, the rocker arm 8 is hingedly connected to the jack piston 5. The device works as follows. In the initial position, the jack 5 is closed, the rocker arm 8 is in the lowest position. When installing the spacer, the compressed air is supplied to the working position in the lower piston cavity of the jack 5, the piston 6 of which, moving, rotates the beam 8 around the ball 7 to seal the projections 9 of the curvilinear lever into the roof of the mine working with the necessary distance. After that, they start drilling holes. At the end of drilling, I remove the thrust force in the column, supplying compressed air to the upper piston cavity of the jack 5. The adjusting device is shifted to a new one. place of drilling. In order to eliminate the influence of the torque, which creates a tendency to turn the expansion column in a horizontal plane, the line drawn through the points to the on-column with the soil and roof should cross the axis of the drill rod, which senses the force of the drilling tool to the bottomhole. To ensure this condition, the shape of the end of the lever in contact with the roof of the excavation should be made curvilinear with a radius; curvatures equal to r Rt: g | The invention allows to increase the effective stroke of the feeder along the distance column in height, while maintaining a sufficient distance force, and the possibility of orientation of the feeder in the horizontal and vertical planes. The infinitely expanding set-up device shortens the time it takes to the working position and back, which allows to increase the duration of the main working time and improve the drilling performance. The invention of the installation device for drilling machines, including a spacer column with a frame, feeder, power cylinder with front and stem, which is due to the fact that, in order to increase reliability and increase productivity of drilling, the device is equipped with a beam with a console a rocker arm hinged at its end, which is made in the form of a lever having a straight line section and a curvilinear section, the radius of the curve. The viscosities of which are determined by the formula g R-tg |, where R is the length of the straight section of the rocker arm; d. - the angle between the beam and the beam in the open position of the column. In this case, the power cylinder and the rod are hinged respectively on the beam and the rocker arm, on the curvilinear portion of which protrusions are made. Sources of information taken into account in the examination 1. The author's certificate of the USSR 471440, cl. E 21 11/00, 1975.

2. USSR author's certificate number 353031, cl. E 21 11/00, 1972.

3. USSR author's certificate number 229386, cl. E 21 C 11/00, 1967 (prototype).