SU1384678A1 - Working member of device for forming wells - Google Patents

Abstract

The invention relates to the construction industry and allows to increase the reliability of the working body in dense soils. The working body includes a rotator shaft 1 and kinematically associated rock-destroying tools (PI) 2. The kinematic connection between shaft 1 and PI 2 is fulfilled in the form of gear wheel (Ø) 3 rigidly fixed on shaft 1 and connected to it by means of teeth of levers P) 7. They are mounted on the coupling coupling 4, which is freely mounted on the shaft 1. At the same time, the PI is placed on the P 7, which have turn stops. During the forward stroke of the rotator with III 3, it interacts with the toothed sectors that turn P 7 in the direction opposite to the rotation of the shaft 1. An increase in the PI 3 turn is facilitated by an increase in the resistance moment during cutting. To remove the device from a deaf well, shaft 1 is reversed. Said W 3 rotates the sectors and P 7 with PI 2 in the opposite direction. In this case, PI 2 describe a cylinder with a diameter equal to the diameter of the well. 2 Il. (L

Description

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This invention relates to the construction industry and can be used as a working body of the device for the formation of wells.

The purpose of the invention is to increase the reliability of work in dense soils.

FIG. 1 and 2 depict the working part of the device for the formation of wells.

The working body includes the shaft 1 of the rotator, on the end of which the central rock-destruction tool 2 is located, and behind it the gear 3. On the shaft 1 there is a loose coupling 4, on the beams 5 of which the axes 6 are fixed. On the latter, the levers 7 are mounted. treads with gear 3. At the same time with the beams, the turn and clutch of coupling 4 takes place, which is possible due to the free installation on the shaft 1.

If it is necessary to remove the device from a deaf well, it produces a reverse of the shaft 1 of the rotator. Gear n 3 rotates the toothed sectors 9, and together with them the levers 7 with a kind of orienting tools 8 in the opposite direction. Rotate the shaft until reaching a limit of 5 lei 11 teeth of gear 3. At the same time, rock-breaking tools are taken out of contact with the walls of the well and occupy the position where they describe a cylinder with a diameter

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The chase of which contains rock-breaking 20 Equal to the diameter of the fixed B-tools, and on the others - toothed sectors 9 with limiters 10 and 11, which engage with gear 3.

The working body has two positions: idle - when reversed, and working - during the direct course.

During the forward stroke, rotation from the shaft 1 of the rotator is transmitted to the central rock cutting tool 2 and gear 3, which, interacting with the gear sectors 9, rotates the levers 7 in the direction opposite to the direction of rotation of the shaft.

wells. The angle of rotation is established by limiters 11 and depends on the required reduction in the diameter of the cylinder, described by the working body.

Claims (1)

Invention Formula The working body of the device 30 for the formation of wells, including a rotator and kinematically associated rock-destruction tools, characterized in that, in order to improve the reliability of work At the same time, peripheral rock-destruction, from dense soils, kinematic The tools 8, located on the other arms of the levers 7, occupy a position that provides the greatest contact area with the walls of the well. An increase in the rotation of the peripheral tools contributes to an increase in the moment of resistance during cutting. Limiters Yu limit the further rotation of the campaigns, preventing the exit of sectors 9 from beyond 40 45 The connection between the rotator shaft and the porous destructive tool is made in a form. The gears are rigidly mounted on the rotator shaft and connected with it by means of the teeth of the levers fixed on the coupling coupling, which is freely mounted on the rotator shaft, while levers and the latter have rotation limiters. nor with the gear 3. Simultaneously with the signs, the rotation and the coupling coupling 4 takes place, possible due to its free installation on the shaft 1. If it is necessary to remove the device from a deaf well, a reverse of the rotator shaft 1 is performed. Gear 3 rotates the toothed sectors 9, and together with them the levers 7 from the rocks of the fracturing tools 8 in the opposite direction. The rotation is carried out before reaching the limiters 11 of the gear teeth 3. In this case, the rock destructive tools are removed from the contact with the borehole walls and occupy the position at which they describe the cylinder with the diameter  Equal to the diameter fixed wells. The angle of rotation is established by limiters 11 and depends on the required reduction in the diameter of the cylinder, described by the working body. Invention Formula The working body of the device for the formation of wells, including a rotator shaft and kinematically associated rock-destruction tools, characterized in that, in order to improve reliability The connection between the rotator shaft and the rock-breaking tool is made in the form of a gear fixed on the shaft of the rotator and connected to it by means of teeth of levers fixed on the coupling sleeve which is freely mounted on the shaft of the rotator, while the rock-breaking tool is placed on the levers and the latter have turn limiters. FIG. 2