Device for screwdriving of piles

FIELD: construction.

SUBSTANCE: device for screwdriving of piles is related to construction and may be used for erection of bearing foundations, fixation of various mechanisms and devices on soil, also under conditions of frozen soils in process of screwdriving of metal tubular piles. Device comprises spinner 1, reducer 2 and cartridge 3, which is arranged in the form of bushing with longitudinal slot and horizontal axis. Lower part of cartridge 3 is equipped with grips with handle and spring-loaded fixator, besides grips have dead slots. Horizontal axis is made with cylindrical protrusions at ends, and longitudinal slots of bush are arranged as stepped and closed. Device may additionally be equipped with the second horizontal axis, detachable pad made of two plates, in which holes are arranged for horizontal axes, at the same time in one of plates holes are made with figure shape, and at one end of horizontal axes there are slants arranged with similar figure shape.

EFFECT: invention makes it possible, due to reduction of time for pile preparation for lift, its fixation in cartridge, to significantly increase efficiency of works on piles driving, and also to improve conditions of work, since all works are carried out not at height, but on ground, in close proximity to area of pipe screwdriving.

2 cl, 10 dwg

 

The invention relates to the construction and can be used for the construction of load-bearing foundations, fixing various mechanisms and devices on the ground, including in the conditions of permafrost when tightening the metal tubular piles.

A device for immersion of screw piles for the upper head of the pile shaft, which fits over the upper end of the pile and using SPL transmits torque to the pile (Herod PPM, "the Use of screw piles in construction", M, 1968, s).

To use this device is only possible after the pile is installed with an additional lifting device in a vertical position.

Closest to the claimed mechanism is screw piles, which is a device for dipping the screw piles. The device comprises a base machine on the platform which are mounted crane with a working body, a bearing mechanism screw piles (screw piles), and a rotary device for fixing and direction of screw piles in vertical and inclined position. The mechanism of screw piles includes the gearbox and Chuck. Above the cartridge consists of a sleeve with a through longitudinal slot, which can move along the groove is set in a horizontal position, the axis of the bearing and (rollers). When this cartridge is attached to the shaft of the reducer (RU, patent # 61732, IPC 02D 7/22, publ. 10.03.2007) prototype.

The disadvantage of these devices is the inability to secure them on the pile, which is in a horizontal position and rests on the ground or in the vehicle, and, in addition, the consolidation of piles in these devices is only possible only by using the ladder and on top.

Object of the invention is to expand the technological capabilities of the device for screwing piles.

The technical result that will be achieved from the use of the invention is to improve the device performance.

The technical result is achieved in that the device for screwing piles containing rotator, gearbox and Chuck, made in the form of a sleeve with a longitudinal groove and a horizontal axis, the lower part of the cartridge provided with a gripping handle and a spring-loaded clamp, and clamps are blind grooves. The horizontal axis is made with a cylindrical protrusions at the ends, and the longitudinal grooves of the sleeves are made of stepped-closed.

In addition, the device can additionally be provided with a second horizontal axis, a removable cover plate, consisting of two plates that have holes for the horizontal axis, and in one of the plates of the hole is performed figured form and on one end of the horizontal axis is made bevels similar to figure form.

The essence of the claimed device is in the design of the mechanism of screw piles.

Supply the lower part of the cartridge by gripping handle and a spring-loaded clamp allows you to hook to hold the pile, to make lifting and installing it in the right place.

Running in the grips blind grooves provides the connection of the cartridge from the pile by means of clamps, placed in the lower part of the cartridge by rotating them by 180. Easy operation and simple design of the grips makes the fixing unit cartridge with a pile reliable and safe.

Performing the horizontal axis, the cylindrical protrusions at the ends, allows us to perceive the weight of lifted piles taking into account the margin of safety.

The execution of the longitudinal grooves of the stepped sleeve is closed, arranged diametrically to each other, allows you to move freely within the cylindrical projections of the horizontal axis inside the housing, not loading them, and also allows you to have a durable case that can transmit significant torque mechanism screwing to the pile.

Supply device, an additional horizontal axis, a removable cover plate, consisting of two plates with holes for the horizontal axis, and ar is th of the plate holes have a decorative shape, and execution of the bevel at one end of the horizontal axes in the same figure form provide secure mounting axes on the pile top and the increased torque when tightening piles. Removable pad on the end of the piles plays the role of a structural element receiving torque and transmitting it to the pile, and it reduces the technological preparation of the next pile to rise due to the advanced technology used overlays.

Place the cartridge on the pile comes at a time when the pile is in a horizontal position on the ground or in the vehicle. This reduces the preparation time when installing piles before the dive.

From the analysis of scientific-technical and patent literature inventive combination of constructive features of the mechanism of screw piles, provide anchorage devices for lifting piles at a time when the pile is in a horizontal position, and also allows you to begin to dive piles after lifting and transferring it to the desired place without any additional operations for installing and fixing, we have not identified that allows to make a conclusion on the conformity of the proposed technical solution the criterion of "novelty" and "inventive step". The presence in the claimed technical solution exists, is public signs, different from the prototype, as well as the causal relationship of these characteristics in common essential features that ensure the achievement of the technical result of the invention, confirms the compliance of the claimed technical solution the criteria of the invention of "novelty."

The emergence of new properties, which has no prototype, also confirms the compliance of the claimed technical solution the criteria of the invention "inventive step".

The claimed technical solution is industrially applicable, as may be used for the construction of load-bearing foundations, construction of power lines, contact the railway network, the installation of supports of any structures in many sectors of the economy.

The invention is illustrated in the drawings, on which:

figure 1 - General view of the device for screwing piles;

figure 2 - Chuck grips and a horizontal axis;

figure 3 - Chuck grips and two horizontal axes;

figure 4 - view And figure 2;

figure 5 - cross section b-B from figure 2;

figure 6 - section b-b from figure 2;

7 is a removable plate pads;

on Fig - pad Assembly;

figure 9 - cross section G-G Fig;

figure 10 is a sleeve with a groove.

Device for screwing piles consists of the rotator 1, gear 2 and the cartridge 3 (figure 1). P is the throne (figure 2) consists of a sleeve 4, two clamps 5, the horizontal axis 6 with a cylindrical protrusions at the ends 7, the two rollers 8 with the sleeve 9. The axle 6 is mounted on the upper end of the pile 10. The sleeve 4 has a wide longitudinal grooves 11 speed-closed form, located diametrically to each other throughout the length of the bushing (figure 5).

At the bottom of the collet Chuck 4 posted by clamps 5, which is made not through the slots 12 (6). Grips has an arm 13 with the spring loaded retainer 14. On the sleeve of the cartridge has a recess 15 (figure 4).

The device may further comprise a second horizontal axis 16 (Fig 3). In this case, the composition of the cartridge includes a removable cover plate 17 (Fig), which consists of two plates 21 and 22 covering the pile 10. On the axes mounted rollers 8. By screw-nuts 18, the rollers 8 are installed on the axis 6 and 16 through the transition sleeve 19, is made with grooves 20 (figure 10) in size that matches the size of the bevel on the axes 6 and 16. Plate 21 (7) in contrast to the plate 22 has a hole shaped form with parallel faces. Axis 6 and 16 in contact with the plate 21 also have parallel bevels, whose shape coincides with the shape of the holes in the plate 21. The axle 6 has on both ends of the cylindrical projections 7 that allows you to capture piles 10 cartridge 3 before lifting.

Device for saving is of helical piles is as follows.

On the pile, lying horizontally on the ground or on the vehicle, prepared to rise in the future - for immersion, set the axis 6 with rollers 8.

After installing the axis 6 into the holes on the pile top and the fixing roller nut 18 to the pile down the cartridge with blind grooves 12 on the hooks 5 in the "OPEN"position, then it is lowered to the cylindrical protrusions 7 on the axis 6 so that they went into the grooves on the grips. Make sure the correct location cylindrical protrusions in the grooves, by means of the handle 13 is turned grips 5 180 and fix them in position by means of clamps 14. The grips are structurally designed so that by means of the handle 13 can be rotated 360 with fixing their position through 180, indicating these provisions as "CLOSED" or "OPEN". In the CLOSED position non-through groove on the grip of the open part facing up, and in the "OPEN" position open part facing down. Fixing clamps at the expense of getting a spring-loaded latch 14 on the handle 13 into the recess 15 on the sleeve of the cartridge 3.

Following the capture of the pile 10 and convinced of the reliability of the lock arms 13, perform rise of the cartridge 3 with the pile 10. The rise of the do until that pile was in a vertical position (hung), then it is transferred to the place of screwing (picket) Omit cartridge, maintaining the vertical position of the piles. When lowering the cartridge down the pile horizontal axis 6 enters into the inside of the sleeve of the cartridge 4, the pile reaches the stop. While the rollers 8 roll on the wide sides of the slots 11, and the cylindrical protrusions 7 on the axis 6 slide within narrow grooves.

Dive piles begin simultaneously with the down of the cartridge 3 on the pile 10. In the future when tightening turns piles in the ground, the pile itself, sensing the torque from the gearbox 2, starts to dive. When the rotator 1 with gear 2 and the cartridge 3 must be in the same position (distance to the ground must not change). When submerged piles into the ground axis 6, transmitting torque to the pile 10, together with it is lowered relative to the sleeve 4, the rollers 8 roll along the wide longitudinal grooves 11, performed inside of the sleeve 4.

As soon as the rollers reach the edge of the wide grooves, the rotation is halted and due to the lifting mechanism, the cartridge 3 is again lowered along the pile 10 until it stops. When this axis 6 with rollers 8 again occupies the topmost position inside the sleeve of the Chuck. Now without further crushing begin rotation of the piles, which continues to be screwed and delve into the soil.

The cycle repeats until such time as the screw pile is completely screwed up the design of the label.

To increase the permissible is aemula torque when tightening the piles use the pad 17 with two horizontal axes 6 and 16, consisting of two plates 21 and 22 with the hole axis.

The installation of the lining 17 with two axes on the pile top perform when the pile is in a horizontal position on the ground or in the vehicle, prepared to rise in the future for dipping. Plates 21 and 22 with the axes 6 and 16 is positioned so that the axis 6 with the cylindrical projections 7 have appeared in extreme hole piles, and the bevels on the plate 21, the axes 6 and 16, and the slots 20 in the sleeve 19 coincided, as shown in section G-G (Fig.9). In this case, setting of the rollers 8 on the axes will be performed correctly and the axis 6, 16 during the rotation of the rollers in the process of screwing the piles will not be rotated, thereby preventing the loosening of the fastening screws 18.

After you install the pads 17 on the pile 10 to it down the cartridge with blind grooves 12 on the gripper 5. In the "OPEN" position, the cartridge 3 is lowered to the cylindrical protrusions 7 axis 6 so that they went into the grooves on the grips. Make sure the correct location cylindrical protrusions in the grooves, by means of the handle 13 is turned grips 5 180 and fix them in position by means of clamps 14.

Convinced of the reliability of the lock arms 13, perform rise of the cartridge with the pile 10 and the cover plate 17 and the two axes, and also produce screwing piles similarly, when the pile has one axis 6.

Prizewinning piles with the plate 17, the rotation is halted, as soon as the lower pair of rollers 8 will reach the edge of the wide grooves, and, due to the lifting mechanism, the cartridge 3 is again lowered along the pile until it stops. When this plate with rollers again occupies the topmost position inside the sleeve of the Chuck, and now, without further crushing begin rotation of the piles, which continues to be screwed and delve into the soil.

After screwing piles cartridge by turning grippers 180 is released from the pile and transferred to another prepared to haul piles, which already secured another technological pad with the axles and rollers. With the previous pile lining removed, and preparing the next pile to rise.

Thus, the proposed device allows for reducing the time of preparation of the pile for lifting, fixing it in the Chuck to significantly improve the performance of work on the pile, and to improve conditions of work, as all work is performed not on high, and on earth, in the immediate vicinity of screw piles.

1. Device for screwing piles containing rotator, gearbox and Chuck, made in the form of a sleeve with a longitudinal groove and a horizontal axis, characterized in that the lower part of the cartridge is provided with a gripping handle and a spring-loaded clamp, and zahwah the s are blind grooves, the horizontal axis is made with a cylindrical protrusions at the ends, and the longitudinal grooves of the sleeves are made of stepped-closed.

2. The device according to claim 1, wherein is further provided with a second horizontal axis, a removable cover plate, consisting of two plates that have holes for the horizontal axis, with one of the plate holes are made curly shape, and one end of the horizontal axis is made bevels similar to figure form.



 

Same patents:

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The invention relates to the construction of pile foundations for civil and industrial constructions

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7 cl, 8 dwg

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4 cl, 23 dwg

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5 cl, 5 dwg

FIELD: building, particularly to erect load-bearing foundation, to retain installation on ground surface and to drive underwater and ground-surface tunnels.

SUBSTANCE: screw pile comprises metal pipe with helical winding formed on the metal pipe and with concrete head installed on the pipe. Concrete head has thickness equal to 1/4-5 pipe diameters. Metal rods having length equal to that of concrete head are built in the concrete head. The helical winding extends along the full shaft length and is made as helical blade with width equal to 0.5-5 concrete head diameters. The helical winding has conical part formed in lower pile part and extending for the length equal to not more than 1/3 of pile length. Triangular stiffening ribs are distributed over the full helical blade surface and have bases connected with each other and abutting metal pipe. Apexes of the stiffening ribs are located at blade edge. Apex of each stiffening rib is provided with metal rod. Metal rods of stiffening ribs are connected with each other by metal reinforcement members embedded in blade edge. Additional triangular stiffening ribs are created in the blade. The additional triangular stiffening ribs extend transversely to main stiffening ribs and have bases connected with pipe. Additional stiffening ribs have apexes fastened to apexes of corresponding main stiffening ribs. Connection member adapted to connect the screw pile with building structure is located in upper pipe part. The connection member is made as header provided with thread or ribbed reinforced concrete header. Upper part of the header is fitted with hook fixer. Lower part thereof has bolt to provide keyed pile driving means fixation. Screw pile driving method and means, as well as tunneling method or method for underground passage construction by open-cut method with the use of the screw pile are also disclosed.

EFFECT: increased structural load-bearing ability, simplified structure, accuracy and reliability of screw pile driving, as well as possibility to drive pile in densely built-up areas.

5 cl, 7 dwg

FIELD: construction, methods or apparatus for placing sheet pile bulkheads, piles, mould-pipes, or other moulds by screwing down, namely for electric plant mounting.

SUBSTANCE: device comprises frame, guiding pipe with clamp, reduction gear with gear-wheels and bearings. Guiding pipe, driving gear-wheel and bearings are made as two sectional parts and provided with hinges from the first sides and with locks from the second sides thereof to join up all parts in single rigid structure. All hinges are coaxially arranged.

EFFECT: extended field of screw grounding electrode usage during grounding devices installation, increased structural simplicity, decreased weight and costs, increased reliability and operational safety, possibility of device usage in the case of power source absence or in territories unsuitable or unfavourable for another equipment usage.

3 cl, 3 dwg

FIELD: construction industry.

SUBSTANCE: method of installing tubular pile in permanently frozen earth involves rotation of pile and its simultaneous vertical movement under influence of pressing axial load applied to the pile. At that speed of vertical pile movement Vm, value of pressing axial load Pt and angular speed of pile rotation ω are controlled using a nomogram built in logarithmic coordinate system wherein along x-axis there marked are magnitudes of the value (athth) that comprises the ratio of thermal conductivity of thawed earth ath to thickness of thawed earth seam under pile edge δth, and along y-axis there marked are values of speed of vertical pile movement Vm. Nomogram consists of two families of Vm-vs-(athth) curves based on calculations of thermal, mechanical and hydrodynamic processes when installing the pile. The above nomogram provides the possibility of choosing the speed of vertical pile movement Vm, depending on pile size and specific earth properties, when Pt and ω are available, as well as the possibility of choosing pressing axial load Pt and angular speed of pile rotation ω when Vm and ath, δth are available.

EFFECT: improving the accuracy of parametrisation of pile installation mode.

3 cl, 2 dwg

FIELD: construction.

SUBSTANCE: invention concerns bored pile construction in any soil environment, and can be applied in industrial and civil construction for construction of new foundations and reinforcement of existing ones, as well as in construction of supports bearing alternate loads. Method involves well drilling by drilling assembly consisting of drilling column and rock crusher, filling the well with solidifying mix, drilling column extraction from well, downtake of metal frame. Well drilling is performed with crushed rock discharge to surface by flush liquid or compressed air fed to bottomhole through hollow drilling column. Simultaneously with well drilling, metal frame made of reinforcement rods with helical flange at external surface is taken down by rotation. Frame is mounted coaxially along drilling column and can rotate together with it. Drilling column is extracted from well together with rock crusher, along with uninterrupted filling of well with solidifying mix through hollow drilling column.

EFFECT: enhanced efficiency of bored pile construction, improved manufacturing quality, enhanced life time and strength of pile.

4 cl, 3 dwg

FIELD: construction.

SUBSTANCE: device for screwdriving of piles is related to construction and may be used for erection of bearing foundations, fixation of various mechanisms and devices on soil, also under conditions of frozen soils in process of screwdriving of metal tubular piles. Device comprises spinner 1, reducer 2 and cartridge 3, which is arranged in the form of bushing with longitudinal slot and horizontal axis. Lower part of cartridge 3 is equipped with grips with handle and spring-loaded fixator, besides grips have dead slots. Horizontal axis is made with cylindrical protrusions at ends, and longitudinal slots of bush are arranged as stepped and closed. Device may additionally be equipped with the second horizontal axis, detachable pad made of two plates, in which holes are arranged for horizontal axes, at the same time in one of plates holes are made with figure shape, and at one end of horizontal axes there are slants arranged with similar figure shape.

EFFECT: invention makes it possible, due to reduction of time for pile preparation for lift, its fixation in cartridge, to significantly increase efficiency of works on piles driving, and also to improve conditions of work, since all works are carried out not at height, but on ground, in close proximity to area of pipe screwdriving.

2 cl, 10 dwg

FIELD: construction.

SUBSTANCE: method for making well for rolled-screw pile including drilling of conventionally cylindrical well. Roller unit and step accessory are connected to auger, device rotation is actuated for thread rolling, roller unit is brought into well, and thread making is started with the help of three rollers with various diametres and thicknesses in the form of truncated cone each, which are serially rolled one after another, and soil is impressed into well wall with angle of thread inclination between plane, where large wheel of each roller is located, and axis of roller unit rotation, making 76 degrees. Master roller executes primary rolling of thread, then intermediate roller of larger diametre and thickness expands groove, increasing thread dimension, and shaping roller of larger size completes soil compaction into well wall and thread rolling. Pitch, which provides for step accessory on auger per single complete rotation of shaping roller equal to 360 degrees makes 0.67 d, where d is diametre of roller unit pipe, and thread pitch corresponds to pitch of single turn of auger blade. Step accessory operates only in process of thread rolling together with rolling unit, and thus thread is rolled for the whole depth of well, reverse rotation is started, and roller unit is brought upwards along shaped thread, afterwards well is inspected and concreted. Device for method realisation comprises auger for drilling of conventionally cylindrical well, device for thread rolling made of roller unit, auger and step accessory. Roller unit includes steel pipe with diametre d with slots for rollers, steel bushings for axles of rollers, master roller with diametre of 0.52 d, intermediate roller with diametre of 0.71 d, shaping roller with diametre of 0.83 d, cover with tail, bottom. All three rollers are arranged as steel and are shaped as truncated cone, and straight line that coincides with diametre line of large wheel in each roller, crossing axis of roller unit rotation, is perpendicular to generatrix of pipe cylindrical surface in point of their crossing, and plane of each roller fit, i.e. plane of roller unit rotation axis crossing with point of crossing of roller rotation axis and large wheel of roller are at the angle of 120 degrees to similar plane of fit of each of two rollers.

EFFECT: simpler, affordable and cheaper arrangement of well for rolled-screw pile of high bearing capacity with the help of facilities for well drilling.

7 cl, 5 dwg

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