SU977687A1

SU977687A1 - Hydraulic drive of drilling machine

Info

Publication number: SU977687A1
Application number: SU813281713A
Authority: SU
Inventors: Михаил Аронович Плотко
Original assignee: за витель МоА.ПЛОТКО
Priority date: 1981-04-17
Filing date: 1981-04-17
Publication date: 1982-11-30

Description

Изобретение относитс к бурильным машинам цикличного действи ,а (Именно к их гидроприводам.The invention relates to cyclic drilling machines, as well (It is to their hydraulic actuators.

Известен гидропривод бурильной машины, включающий гидроцилиндр подачи , полости которого св заны че .рез распределитель с насосом и маслобаком L13 A hydraulic actuator of a drilling machine is known, which includes a supply hydraulic cylinder, the cavities of which are connected via a distributor to a pump and an L13 oil tank.

Однако необходимость визуального Определени конечной высоты подъема бура с набранным грунтом из услови недопустимости касани грунта частей машины утомл ет оператора и снижает производительность бурильной машины.However, the need to visually determine the final height of the drill with accumulated soil under the condition that the parts of the machine should not touch the ground fatigues the operator and reduces the productivity of the boring machine.

Известен гидропривод бурильной машины , включающий гидроцилиндр подачи, полости которого св заны через каналы штока и распределитель с насосом и маслобаком 2.A hydraulic actuator of a drilling machine is known, which includes a supply cylinder, the cavities of which are connected through the stem channels and the distributor with the pump and oil tank 2.

Однако отсутствие регулировки высоты подъема бура с грунтом в зависимости от характеристики последнего снижает производительность бурильной машины.However, the lack of adjustment of the height of the drill with the ground, depending on the characteristics of the latter reduces the performance of the boring machine.

Цель изобретени - повышение производительности бурильной машины.The purpose of the invention is to increase the productivity of the drilling machine.

Поставленна цель достигаетс тем что, гидропривод бурильной машины, включающий гидроцилиндр подачи,-полости которого св заны через каналыThe goal is achieved by the fact that the hydraulic drive of the drilling machine, including the feed hydraulic cylinder, the cavities of which are connected through the channels

штока и распределитель с насосом и маслобаком, снабжен дополнительными распределителем и поршнем со штоком, а шток гидррцилиндра подачи выполнен с полостью,в которой размещены дополнительный поршень со штоком, при этом полость штока гидроцилиндра подачи св зана с дополнительным распределителем .rod and valve with pump and oil tank, equipped with an additional valve and piston with rod, and the hydraulic supply cylinder rod is made with a cavity in which an additional piston with a rod is placed, while the cavity of the hydraulic cylinder of the supply cylinder is connected with an additional valve.

10ten

На чертеже представлена принциписшьна схема устройства.The drawing shows the principle of the device.

Устройство включает насос 1, распределители 2 и дополнительный 3, The device includes a pump 1, valves 2 and an additional 3,

15 маслобак 4, гидроцилиндр 5 подачи бура 6. Шток 7 гидроцилиндра 5 подачи выполнен с полостью 8 и каналами 9 - 11. В полости 8 штока 7 расположен дополнительный поршень 12 со 15 oil tank 4, hydraulic cylinder 5 of the feed of the drill 6. The rod 7 of the hydraulic cylinder 5 of the feed is made with cavity 8 and channels 9-11. In cavity 8 of rod 7 there is an additional piston 12 with

20 штоком 13, образующий полости 14 и 15. Распределитель 16 управл ет гидроцилиндром 17 привода муфты трансмиссии вращател . Распределитель 3 выполнен трехпозиционным с рабочими 20 by a rod 13 forming cavities 14 and 15. The distributor 16 controls the hydraulic cylinder 17 of the drive of the rotator clutch transmission. The distributor 3 is made three-position with workers

25 позици ми 18 и 19. Шток гидроцилиндра 5 закреплен неподвижно. Кангшы 9 и 10 соединешл маслопроводами 20 и 21 с распределителем 2, а канал 11 - с дополнительным распределителем 3 25 positions 18 and 19. The rod of the hydraulic cylinder 5 is fixed motionless. Kangshy 9 and 10 are connected by oil lines 20 and 21 with valve 2, and channel 11 with an additional valve 3

Claims

30 by an oil pipe 22. Distributor 3 is connected by an oil pipe 23 to an oil pipe 20, The device operates as follows. Distributor 2 controls the raising and lowering of the drill. Before starting work, depending on the properties of the soil and the size of its set per drilling cycle, the position of the piston 12 with the rod 13 ensures the optimum height of the drill. To extend the stem 13, the distributor 3 is positioned at position 19 and the oil flows through the oil pipe 22 and channel 11 into the cavity 14, and the oil is drained from the cavity 15 through channel 9 and the oil lines 20 and 23. The valve 2 is in the middle position at this time. . To retract the stem 13, the distributor 3 switches to position 18 and the oil flows through the oil lines 23 and 20 and channel 9 into the cavity 15, and the drain from the cavity 14 is carried out through channel 11 and the oil line -22. When the drill is raised with the soil at the end of the drilling cycle, the feed sleeve of the hydraulic cylinder 5 is limited by a piston 12 with a rod 13 and the pressure increasing at the stop of the cylinder of the supply cylinder to the rod 13 switches the distributor 2 to the middle position, after which the distributor 16 turns on and the rotator performs a centrifugal spread ground. Thus, the device is provided with an adjustment of the lifting of the drill with the soil, depending on the nature of the soil, thus avoiding the shedding of the soil into the well, which increases the productivity of the boring machine. The invention of the hydraulic drill machine, which includes a feed cylinder, the cavities of which are connected through the stem channels and the valve with the pump and oil tank, characterized in that, in order to increase the productivity of the drill machine, it is provided with an additional valve and piston with the rod, and the feed cylinder It is made with a cavity in which an additional piston with a rod is placed, wherein the cavity of the feed cylinder of the supply cylinder is associated with an additional distributor. Sources of information taken into account during the examination 1. USSR author's certificate No. 590402, cl. E 02D 17/14, 1976.

2. USSR author's certificate number 740930, cl. E 21 V 3/02, 1978 (prototype.

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