SU1153055A1 - Hydraulic working member - Google Patents

Abstract

HYDRAULIC EXECUTIVE BODY, including clearing and drill shafts mounted on a housing mounted on a support, and a clearing shaft turning mechanism, which is tactile in that, to simplify control, the clearing barrel turning mechanism is designed as a differential piston with an annular surface, located in the housing, and the end surface located outside the housing with the ability to interact when the housing is rotated with the support made on the support. sl Sad

Description

The invention relates to the mining industry and is designed to excavate coal on steep seams. A hydraulic actuator is known, including the cleaning and drilling stems mounted on the body of TI 3. However, this device does not ensure the rotation of the cleaning shaft in a vertical plane. The closest technical solution to the invention is a hydraulic actuator including a cleaning and boring barrels mounted on a body mounted on a support and a mechanism for turning the cleaning barrel, 2j. A disadvantage of the known device is the complexity of controlling the executive body. The purpose of the invention is to simplify the control. This goal is achieved that in a hydraulic actuator, including a cleaning and drilling barrels mounted on a body ground on a support, and a mechanism for turning a cleaning barrel, a mechanism for turning a cleaning barrel is fulfilled as a differential Piston with an annular surface located in the body and an end face surface outside the body with the ability to interact with the rotation of the body with the support made on the support. FIG. 1 shows a hydraulic actuator, a general view, in FIG. 2 is a view A of FIG. one; in fig. 3 section bb of fig 1; in fig. 4 the same, with a raised cleaning barrel; FIG. 5 is a section B-B in FIG. 2; in fig. 6. - section GGD in FIG. 4; FIG. 7 is a section d-d in fig. 6; in fig. 8 is a diagram of the device operation The hydraulic actuator consists of a housing 1 with chisel-forming drill trunks 2. In the housing, at the expense of partitions, perform a supply 3 and a discharge 4 chambers and a through window 5. In the window, a cleaning jet shaft 7 is installed on the floor in the secondary axis 6. The axis is located in the sleeves 8, which form the channels 9, and is fastened with a spring ring 10. The axis 11 and the opening of the window 12 are made on the axis. The sleeves have annular chambers 52 13 and windows 14. The barrel has a sleeve 15, in which the chamber 16 is ringed. The coupling has a hole 17 with a groove that is connected to the piston 19 by means of axis 18 and pass through the walls of the supply chamber. The piston has a differential pad 20. At one end, the piston has a fork 21 adjusted to change the angle of installation .b1 of the cleaning shaft, and at the other end - a spherical surface 22. The housing has a transition rod 23 with a support 24. At the end of the support there is a stop 25 with screws 26. The stop has a bevel 27 and end face 28, Transitional Ptanga connects the executive body with the drill rim 29. The work of the executive body is carried out in the following way. High-pressure water at station 29 and rod 23 is supplied to chamber 3, then through channels 9 to chamber 4, and from some to drill stems 2. Simultaneously from channels 9 through windows 14, annular chambers 13, windows 11, then windows 12 and an annular chamber 16 water enters the clearing shaft 7, the pressure of the water on the differential pad 20 piston 19 by means of a plug 21 connecting it with the axis 18 to the eye 17 of the cleansing barrel, holds the barrel in the position of the clearing recess at an angle oi, providing self-flowing hydraulic transport. The high-pressure jets expire from the bph barrels due to the rocking of the rod 29. They drill ahead of the well. The resulting well, with a longitudinal feed of the rod, enters the clearing barrel by the amount removed. Struzhu: si. When wiggling the rod, chips are removed across the entire thickness of the formation, while the drill shafts deepen the advance well. After washing off the chips, it is again brought to the bottom by the amount of the removed and another wash is performed. After working the area defined by ycJ safety length, a degassing relief groove is formed in the side sight of the coal. For this, the drill station 29 is rotated 180 °. When this piston 19 with its spherical surface 22 is on the bevel 27 of the stop 25 and moves to its front surface 28. At the same time, 3

shen, Overcoming the water pressure on the differential pad 20, rotates the barrel 7 at an angle of 2 oL. The water pressure on the pad 20 presses the piston 19 against the end 28 of the stop 25 and holds the barrel 7 in position to form a discharge groove. By shaking the rod, the discharge groove is formed over the entire thickness of the formation. Turning the barrel 7 at an angle of 2 ci creates a single slope of the discharge groove and the line of the clearing face, which provides

1530554

the flow of water, and hence the efficiency of the high-pressure jet.

After the discharge slot 5 is formed, turning 29 turns in the opposite direction, with the piston 19 moving off the stop 25, and the pressure of water on the pad 20, the barrel 7 returns to its original position, after which the cycle of operation repeats.

The proposed device allows to simplify the management of the cleaning barrel. )

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Claims (1)

HYDRAULIC EXECUTIVE BODY, including treatment and drilling shafts mounted on a housing mounted on a support, and the rotation mechanism of the treatment shaft, about τι l, which, in order to simplify management, the rotation mechanism of the treatment shaft is made in the form of a differential piston with an annular surface, located in the housing, and the end surface located outside the housing with the possibility of interaction when the housing is rotated with a support made on the support. ·.