Device for rolling wells

 

The invention relates to a device for the trenchless drilling wells by the method of rolling and can be used in the construction of underground utilities. The device comprises a drive shaft with consistently deployed and eccentrically mounted relative to the axis of rotation of the cylindrical rollers, made in the form of discs, on the lateral surfaces of which the rotating rims. The longitudinal axis of each of the rollers is formed with a rotation axis angle, the value of which is determined by the expressionI= arcsin[R/2(di+2i)], where p is a practical step-helix, di,i- values of the diameter and eccentricity of the rink, respectively. The invention provides high performance and reduce energy costs when sinking wells. 5 C. p. F.-ly, 2 Il.

The invention relates to a device for the trenchless drilling wells by the method of rolling and can be used in the construction of underground utilities.

It is known device (see, for example: swarsensky Century as making holes in soil by drifting. - Novosibirsk, 1982. - S. 24-27) for bestrank the YMI tails, have rotating relative to each other conical and cylindrical reversing rollers, and the values of the eccentricity of the shaft journals, average diameters of the rollers and the angles of inclination of the longitudinal axes of the rollers to the axis of the device naturally vary according to the length of the shaft.

When the shaft of the known devices rollers last objetivas on their faces that form the walls of the well and at the same time, moving along a helical line through the rotation axes of the rollers relative to the axis of the bore, providing a direct line feed (screwing) of the device into the well. When reversing shaft known device is out (come unscrewed) from the well.

To ensure the effective samopomoc device in the borehole, the value of the step helix determining the rate of penetration and performance of the device, must be the same and proportional to the diameter of the rollers along the entire length of the device. For tapered rollers specified condition is almost impossible, and the actual step value of each of the rollers is unstable along the length of the latter. As a result, during operation of the known device rollers slip relative to the walls of the borehole, thereby weakening (up to icesnkva.

In the device A. with. SU # 1765313, IPC E 02 F 5/18, 1992, to reduce the above disadvantages of each conical rink is divided into a number of conic sections, mounted on one eccentric neck with the possibility of their separate rotation relative to the shaft, thus to provide the estimated value of the pitch of the longitudinal axis of each of the sections is inclined to the longitudinal axis of the device by an angle inversely proportional to the average diameter of the section.

The separation of each of the rink on a separate, self-contained sections evened the heterogeneity of the estimated step length rollers and thereby reduce the sliding of the latter, however, the positive effect is negligible.

In addition, the presence of additional gaps between the sections of the rollers of the known devices requires the development of special sealing elements, the ingress of soil into the gaps, which complicates the design and reduces the manufacturability of the product.

The objectives of the present invention is to increase the productivity and efficiency of the device for rolling wells while simplifying the design and improving the manufacturability of the latter.

The tasks are solved due to the fact that in ustroystvo mounted about the axis of rotation of the cylindrical rollers, the longitudinal axes of which are arranged at an angle to the axis of the shaft, rollers contain the rims, mounted for rotation on their lateral surfaces, and the angle of the longitudinal axes of the rollers to the shaft axis equali=arcsin[R/2(di+2i)], where p is a practical step-helix, diandi- the values of the diameter and eccentricity of the rink, respectively.

Rollers rigidly mounted on the drive shaft. The rims have a thickness not less than the value of the step helix and provided with stress concentrators, made for example in the form of an annular, longitudinal ribs, or ribs located at an angle to the generatrix of the cylinder.

In Fig.1 shows a General view of the claimed device.

In Fig.2 is a longitudinal section of a schematic image of one of the disks.

The device comprises a shaft 1 with rollers, each of which includes a disk 2, a rim 3, the bearing 4.

The device operates as follows.

The drive shaft 1 of a device for rolling wells is driven (rotated) by any known propulsion, for example, by an electric motor (not shown).

When the shaft of the rollers 1, objetivas rims 3 on their faces, formiruyutzhego line, given the ratio between the diameters and angles of inclination of the axes of the rollers to the axis of rotation is the same for all rollers along the entire length of the device. Due to the constancy of the step wall of the borehole when samapada device does not tear, and the device effectively, without slipping can be screwed into the hole.

The presence of lateral surfaces of rollers rotating rims increases the effect of samopomoc, as the latter provide a clear, physical fixation helix directly on the walls of the borehole.

Decreasing the amount of slippage achieved in the inventive object, causes, in turn, increases samopomoc and, accordingly, the performance of the device, and reduction of unproductive expenditure of energy.

In addition, the implementation of rollers in the form of discs allows you to refuse the use of an eccentric shaft, which simplifies the design and improves the manufacturability of the product.

Claims

1. Device for rolling wells, consisting of a shaft with consistently deployed around its axis and eccentrically mounted relative to the axis of rotation of the cylindrical rollers, the longitudinal axes of which are arranged under the angle is x surfaces, for each rink angle to its longitudinal axis to the axis of the shaft is equal to

i= arcsin[R/2(di+2i)],

where R is a practical step helices;

diandithe diameter and eccentricity of the rink, respectively.

2. Device for rolling wells under item 1, characterized in that the thickness of each of the rim not less than the value of the practical step of a screw line.

3. Device for rolling wells under item 1, characterized in that the rims are equipped with stress concentrators.

4. Device for rolling wells under item 3, wherein the hub is made in the form of annular ribs.

5. Device for rolling wells under item 3, wherein the hub is made in the form of longitudinal ribs.

6. Device for rolling wells under item 3, wherein the hub is made in the form of ribs arranged at an angle to the generatrix of the cylinder.

 

Same patents:

The extender wells // 2234584
The invention relates to the drilling technique, in particular to devices for increasing the diameter of the wells in a given interval

The extender wells // 2231612
The invention relates to the drilling technique, in particular to devices for increasing the diameter of the wells in a given interval

The invention relates to the mining industry and is a device for expanding the drilled wellbore

The invention relates to the mining industry, in particular to the separation from an array of hollow workpieces of large diameter, resulting in the drilling of a special diamond tool from pillar rocks

The invention relates to a drilling technique and can be used to extend the wells in the settlement interval

The invention relates to the creation of underground storage tanks in deposits of rock salt and can be used when creating underground storage for gaznefteprodukt and disposal of industrial waste

The invention relates to mining, drilling wells

The invention relates to the mining industry and can be used for expansion of the drilled wellbore

The invention relates to stone mining and processing industries

The invention relates to the construction industry, in particular to the technology of punching holes in the soil, and can be used in the preparation of the foundations and the installation of pile foundations on compacted base

Air puncher // 2231611
The invention relates to machines for construction, and is intended for sinking wells in the ground especially considerable length and curved at the trenchless laying of underground utilities

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

The invention relates to construction equipment, in particular to a reversible pneumatic devices impact for the formation of wells in the ground when laying underground utilities

The invention relates to the mining industry and can be used for drilling vertical wells in loose, slabosvyazannykh and porous rocks

The invention relates to construction equipment, and more precisely to a device for rolling vertical, inclined and horizontal wells

The invention relates to the field of mining and construction, in particular to a device for punching holes in rocks or artificial formations

The invention relates to the field of mining and construction and is designed for punching holes in hard rocks

The invention relates to construction equipment for sinking predominantly vertical wells in the ground under ramming piles, anchors and for the purposes of intake

Air puncher // 2231611
The invention relates to machines for construction, and is intended for sinking wells in the ground especially considerable length and curved at the trenchless laying of underground utilities
Up!