Drilling device for plants with worm-like working tool

FIELD: mining industry.

SUBSTANCE: device has pressing blocks of saddle-like shape, each of which is spring-loaded relatively to rotation levers with axes via springs and is freely mounted at rotation levers with their possible rotation during wear of spiral of worm working tool along diameter, without displacement of the latter from drilling axis, for certain angle around fixing axes for pressing blocks, placed in parallel to longitudinal axis of drilling device, levers rotating drive, centering rollers, fixed at ends of pressing blocks by axes in parallel to longitudinal axis of drilling device. At ends of pressing blocks grooves are made, radially directed to longitudinal axis of drilling device, wherein resilient inserts are placed, pressing axes of centering rollers in direction of longitudinal axis of drilling device. Axes of centering rollers are made with possible displacement along grooves. Rigidity of springs of pressing blocks is not greater than rigidity of resilient inserts.

EFFECT: higher efficiency.

3 dwg

 

The invention relates to mining, namely drilling machines with screw working body, and can be used in other drilling rigs.

Known sabornie device for machines with a screw working body, comprising clamping jaws saddle shape associated with the levers rotate, the drive rotation of the levers and rollers of a certain length for contact with the spiral of the working body, attached to the ends of the clamping blocks, the axis of which is parallel to the longitudinal axis zabernovo device (see USSR author's certificate No. 1647116, CL E 21 7/24, 1991). This solution due to the rolling freely rotating rollers can reduce energy consumption by rotation of the working body and the wear of the spiral drilling screws.

The disadvantage of this technical solution is offset from the axis drilling (bias) screw the working body with partial wear on the diameter when it is centered in saborna device, which reduces the accuracy of drilling wells and the performance of drilling operations.

The closest technical solution is sabornie device for machines with a screw working body, comprising clamping jaws saddle shape, each of which is spring-loaded relative to the lever rotation axis by means of leaf springs and freely mounted on the levers rotate about the s, with the possibility of rotation when the wear of the spiral screw of the working body in diameter, without moving the latter axis drilling on some angle around the axis of the mounting clamp pads that are parallel to the longitudinal axis zabernovo device, the drive rotation of the levers, the centering rollers mounted on the ends of the clamping pads through the axes parallel to the longitudinal axis zabernovo device (see the Description of the invention the application No. 94033121, CL E 21 7/24, 1996). This solution due to the free installation clamping pads on the levers turn allows for more accurate worn centered on the diameter of the screws, and therefore, reduce the time of auxiliary operations and improve overall performance of drilling operations.

The disadvantage of this technical solution when drilling screw the working body with partial wear in diameter (less than 10%) is that the axis of the centering rollers zabernovo device rigidly attached to the ends of the clamping pads, densely covering the centering rollers worn lower part of the screw working body before drilling, which contributes to a significant increase in friction of the ends of the spiral screw the working body on the surfaces of the centering rollers at the end of the process of drilling, when passing through the centering roller is zabernovo device top, less worn (i.e. having a larger diameter) of the screw part of the working body. This causes additional energy consumption rotationally-feeding mechanism of the machine in the process of drilling, reduces the speed of drilling and ultimately the efficiency of the drilling screw working body with partial wear of the spiral diameter.

The invention is aimed at improving the efficiency of drilling screw working body with partial wear of the spiral diameter.

This is achieved by the fact that in saborna device for machines with a screw working body, comprising clamping jaws saddle shape, each of which is spring-loaded relative to the lever rotation axis by means of leaf springs and freely mounted on the levers rotate with the possibility of rotation when the wear of the spiral screw of the working body in diameter, without moving the latter axis drilling on some angle around the axis of the mounting clamp pads that are parallel to the longitudinal axis zabernovo device, the drive rotation of the levers, the centering rollers mounted on the ends of the clamping pads through the axes parallel to the longitudinal axis zabernovo devices at the ends of the clamping pads are made grooves, radially oriented to the longitudinal axis zabernovo device, in which is placed an elastic insert, priimagi the axis of the centering rollers in the direction of the longitudinal axis zabernovo device, in this case the axis of the centering rollers configured to move along the slots, and the spring stiffness of the spring clamping pads does not exceed the stiffness of the elastic inserts.

Figure 1 shows the proposed sabornie device (top view; figure 2 is a section along a-A; figure 3 - a view B figure 2.

Sabornie device for machines with a screw working body 1 includes clamping jaws 2 saddle shape, each of which is spring-loaded relative to the levers of rotation 3 axis 4 by means of leaf springs 5 and freely mounted on the levers turn 3 with the possibility of rotation when the wear of the spiral 6 screw the working body 1 in diameter, without moving the latter axis drilling on some angle around the axis of the fastening 7 clamping pads 2 that are parallel to the longitudinal axis zabernovo device, the actuator 8 of rotation of the levers 3, the centering rollers 9 mounted on the ends of the clamping blocks 2 through the axis 10 parallel to the longitudinal axis zabernovo device. At the ends of the clamping pads 2 made grooves 11, radially oriented to the longitudinal axis zabernovo device, in which is placed an elastic insert 12, the holding axis 10 of the centering rollers 9 in the direction of the longitudinal axis zabernovo device. In addition, the axis 10 of the centering rollers 9 is arranged to move along the slots 11 and rigidly the th leaf springs 5 clamping pads 2 does not exceed the stiffness of the elastic inserts 12.

Works sabornie device as follows. Before the process of drilling a screw working body 1 is lowered all the way into the drilled surface of the face, and then using the actuator 8, the levers rotate 3 are rotated around the axes 4 and its saddle-shaped clamping blocks 2 closer to the moment of contact with the end surface of the spiral 6 screw the working body 1. After that, turn on the rotation of the screw of the working body 1 and its submission to the bottom, i.e. starts drilling wells. When you wear helix 6 screw the working body 1 according to the diameter of the clamping jaws 2 are rotated without moving the latter axis drilling on some angle around the axis of the mount 7, overcoming the slight resistance of the leaf springs 5, and provide contact all of the centering rollers 9 zabernovo device with spiral 6 lower (more worn) parts screw the working body 1. However due to the different stiffness of the leaf springs 5 and the elastic inserts 12, the holding axis 10 of the centering rollers 9 in the initial position, the elastic insert 12 continue to stay on the job (relative to the unloaded state. In the process of going through sabornie unit of the upper, less worn parts screw the working body 1, the axis 10 of the centering rollers 9 are moved along the radially oriented the scored grooves 11 saddle pads 2 in the direction of the longitudinal axis zabernovo device, overcoming the resistance of the elastic inserts 12, thereby compensating the increase of the diameter of the top is less worn parts screw the working body 1.

The proposed technical solution, due to the possibility of moving the axes of the centering rollers in the grooves of the clamping pads zabernovo device, reduces the friction force the ends of the spiral screw the working body on the surfaces of the centering rollers at the end of the process of drilling, to reduce energy consumption rotationally-feeding mechanism of the machine, to increase the speed of drilling and, in General, the efficiency of the drilling screw working body with partial wear of the spiral diameter.

Sabornie device for machines with a screw working body, comprising clamping jaws saddle shape, each of which is spring-loaded relative to the lever rotation axis by means of leaf springs and freely mounted on the levers rotate with the possibility of rotation when the wear of the spiral screw of the working body in diameter, without moving the latter axis drilling on some angle around the axis of the mounting clamp pads that are parallel to the longitudinal axis zabernovo device, the drive rotation of the levers, the centering rollers mounted on the ends of the clamping pads through the axes parallel to the longitudinal axis zabernovo devices differently is the, that at the ends of the clamping pads are made grooves, radially oriented to the longitudinal axis zabernovo device, in which is placed an elastic insert, clamping axis of the centering rollers in the direction of the longitudinal axis zabernovo device, in this case the axis of the centering rollers configured to move along the slots, and the spring stiffness of the spring clamping pads does not exceed the stiffness of the elastic inserts.



 

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The invention relates to mining, namely sabumnim devices for machines with a screw working body

The invention relates to installations for trenchless laying of pipes in the ground through artificial and natural obstacles with the use of the borehole expanders

FIELD: mining industry.

SUBSTANCE: device has pressing blocks of saddle-like shape, each of which is spring-loaded relatively to rotation levers with axes via springs and is freely mounted at rotation levers with their possible rotation during wear of spiral of worm working tool along diameter, without displacement of the latter from drilling axis, for certain angle around fixing axes for pressing blocks, placed in parallel to longitudinal axis of drilling device, levers rotating drive, centering rollers, fixed at ends of pressing blocks by axes in parallel to longitudinal axis of drilling device. At ends of pressing blocks grooves are made, radially directed to longitudinal axis of drilling device, wherein resilient inserts are placed, pressing axes of centering rollers in direction of longitudinal axis of drilling device. Axes of centering rollers are made with possible displacement along grooves. Rigidity of springs of pressing blocks is not greater than rigidity of resilient inserts.

EFFECT: higher efficiency.

3 dwg

Drilling rig // 2259456

FIELD: well drilling equipment, particularly light or superlight drilling rigs.

SUBSTANCE: drilling rig includes frame and guiding means pivotally connected to frame, rotary supplying system arranged on guiding means and anchoring members. Drilling rig is provided with support member displaceable relative guiding means and anchoring members secured to the support member through clamps. Guiding means has clamps of anchor members. Secured to lower side of support member is grouser. In the case of inclined well boring drilling rig is provided with drill steel support. Drill steel support has pins, tension bars secured to pins by clamps so that tension bars may to perform adjusting longitudinal movement and adjusting rotation about the pins. Another tension bar ends are provided with clamps. During inclined well boring frame extensions secured to the frame are used if required. Guiding means and support member have means for alternate drill steel support fixation.

EFFECT: reduced dynamic loads applied to drilling tool, increased drilling rig stability and increased drilling rig weight utilization ratio.

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FIELD: mining, particularly to construct horizontal or inclined wells by rotary drilling in fissured rock with the use of rotary drilling rid and adapted to be used during exploration drilling in pits and mines for iron-ore mining.

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FIELD: oil and gas industry.

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FIELD: oil and gas industry.

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