Device for trenchless laying of pipelines by pricking method
SUBSTANCE: device for trenchless pipeline laying by pricking method comprises the feeding mechanism from the guide frame with horizontal and vertical guide rollers with the possibility of their interaction with the outer surface of pipeline to be laid, and cable pulling winch, rod fixedly secured to the flange mounted on the front end towards the puncture of the laid pipeline, with the ball bearing installed on its end with possibility of supporting on it of the hollow working tip of conical form, inside the hollow working tip at its area of cylindrical shape, electric motor of circular rotation rod is installed relative to the axis of rotation rod with its support on the flange by means of seal assemblies. Stator of electric motor is fixed on the rod, and rotor - on the inner surface of horizontal area of the hollow working tip. Helical surface of auger-type is fixed on the outer surface of cone area of working tip.
EFFECT: simplification of the device design, increase of reliability and lifetime of its operation, reduction of value of the required force for pricking and energy consumption.
The invention relates to the construction of pipelines, namely, devices intended for trenchless laying of pipelines by way of puncture.
Known adopted as a prototype device for the trenchless laying of pipelines by way of puncture containing the feed mechanism from the guide frames with horizontal and vertical guide rollers, with the possibility of their interaction with the external surface of the underground pipe and cable pulling winch, hollow work the tip of the conical shape, vibrator circular oscillation which is made in the form of an electric motor with a hollow shaft with an offset center of gravity relative to the axis of rotation, and the stator is fixed in the working tip. Inside the hollow shaft is placed a rod fixedly mounted on the flange mounted on the front in the direction of the puncture end of the laid pipe. Device rotation is made in the form of a cap with a hole, objetivas interleaved surfaces, rotating and linear motion along the longitudinal axis of the eccentric rod (U.S. Pat. Of the Russian Federation No. 2477772, IPC E02F 5/18, publ. 20.03.2013,, bull. No. 8).
However, the disadvantages of the known device is the design complexity, increased burden on many working elements of the device, reducing their lifespan and improve their standing in the industry, the presence of two internal electric actuators associated floating cable with a power source, which further complicates the design and reduces the reliability of the device. When this transverse vibratory oscillations of the working tip of the conical shape, despite the complicated construction of the device is practically not significantly reduce the static resistance in the pipeline, as hollow work the tip of the conical shape when the pipeline rests on the ground, further compacting it. Therefore, for laying of the pipeline is required to attach considerable force, developed with a rope winch, with increased loads on all the working elements of the device.
The technical result of the invention is to simplify the design of the device, improving the reliability and lifetime of its operation, a significant decrease in the magnitude of the required effort puncture and energy for its implementation.
The technical result is achieved in that the device for the trenchless laying of pipelines by way of puncture containing the feed mechanism from the guide frames with horizontal and vertical guide rollers with the possibility of their interaction with the external surface of the underground pipe and cable pulling the winch, rod still attached to the flange mounted on the front in the direction of the puncture end of the laid pipe, installed at the end of the ball support with bearing on it working tip of the conical shape, inside the hollow of the working tip on his plot of cylindrical shape, with its bearing on the flange by means of seals, installed the motor is circular about the axis of rod rotation, the stator of the motor is fixed on the shaft, and the rotor is on the inner surface of the horizontal section of the hollow working tip on the outer surface of the conical section of the working tip mounted threaded surface of the screw type.
The device is presented in figure 1 is a longitudinal section, figure 2 is a top view of the working tip
A device for the trenchless laying of pipelines by way of puncture contains the feed mechanism from the guide frame 1 with 2 horizontal and 3 vertical guide rollers with the possibility of their interaction with the external surface of the underground pipe 4, and the cable winch 5 with traction rope 6, 7 fixed and mobile 8 traverses. On the flange 9, mounted on the front in the direction of 10 puncture the end of the laid pipe 4, the fixed terminal 11 installed on it is the end of the ball support 12 with bearing on it working tip of the hollow conical form 13. Inside the hollow of the working tip 13 on its adjoining pipe section 4 of cylindrical shape, with its bearing on the flange 9 by means of a seal 14, a circular motor relative to the rod axis 11 of rotation. When the stator 15 of the motor is fixed on the shaft 11 and the rotor 16 on the inner surface of the horizontal section of the hollow working tip 13. On the outer surface of the conical section of the working tip 13 is fixed screw surface screw type 17.
The device operates as follows. Included cable pulling winch 5 and a motor mounted on the core 11 of the stator 15 and fixed on the inner surface of the cylindrical section of the working tip 13 of the rotor 16. When this pipeline 4 begins to move in the direction of 10 simultaneous rotation with the rotor 16 of the hollow working tip 13 attached to its outer surface screw surface screw type 17. Due to the interaction of the projections screw surface screw type 17 with the breed derives its destruction around the perimeter of the working tip 13 offset destroyed by the feed screw 17 rocks in the direction opposite to the direction 10 of the promotion of the pipeline 4. This significantly reduces the resistance to advancement of the line is the gadfly 4 in the complete absence of dynamic loads on all structural elements of the device and minimize the drive power of the winch 5, as well as loads on the traction rope 6 fixed 7 and 8 mobile traverses. This significant reduction in effort required for installation of the pipe 4 is provided not only by reducing the mechanical load, but also due to a significant decrease friction of the working tip 13 and the pipeline 4 on the ground by placing around the pipe 4 during its movement in the direction of 10 crushed by the feed screw 17 layers of rock.
Thus, features of the invention provide, in comparison with the device prototype, simplifying the design of the device, improving the reliability and lifetime of its operation, a decrease in the required effort puncture and energy for its implementation.
A device for the trenchless laying of pipelines by way of puncture containing the feed mechanism from the guide frames with horizontal and vertical guide rollers with the possibility of their interaction with the external surface of the underground pipe and cable pulling winches, rod still attached to the flange mounted on the front in the direction of the puncture end of the laid pipe, installed at the end of the ball support with bearing on it working tip of the hollow conical shape, inside the hollow of RA is Otsego tip on his plot of cylindrical shape, with it resting on the flange with seal, a circular motor relative to the rod axis of rotation, characterized in that the stator of the motor is fixed on the shaft, and the rotor is on the inner surface of the horizontal section of the hollow working tip and on the outer surface of the conical section of the working tip mounted threaded surface of the screw type.
SUBSTANCE: method of steering control of the working element for hole making in quick grounds and marshy grounds comprises immersing or rising the working element in case of deviation from the trajectory. At that the immersing or rising the working element is carried out by changing its weight. When emersion of the working element its weight is increased by supplying filler in the adjusting chamber of the working element. While immersing the working element as it moves the weight of the working element is decreased by removing a part of the filler from the said chamber of the working element.
EFFECT: immersion or emersion of the working element in the ground.
2 cl, 1 dwg
SUBSTANCE: proposed method consist in driving the pipe in soil, forming the soil core in pipe face section, forcing said core by air pressure portions in annulus, cutting off the core portions to make the chamber ahead of soil core portion by displacing the soil duct in the axis of submergence. Said soil duct is composed by submersible pipe to be displaced in submergence axis by static force. Soil core portions transfer is conducted by creating vacuum at submersible pipe external end.
EFFECT: lower power intensity, lower costs.
3 cl, 3 dwg
SUBSTANCE: this method consists in well drilling by rock cutter tool of well bottom tool connected with dual drill string with continuous slurry removal from well bottom and transfer of slurry by used working fluid flow under pressure via central channel of said dual drill string. This dual drill string is composed of stationary external pipe accommodating drill bar transmitting the torque and axial force to drill bit with rock cutter tool. At a time, said external pipe is fitted in said drilled well to be left therein as a casing after drilling. Dual drill string central channel is composed by drill bar channel.
EFFECT: higher efficiency and reliability, lower costs, expanded applications.
2 cl, 1 dwg
SUBSTANCE: method includes formation of a pioneer well along the design axis of the installed bundle of pipes between working and receiving pits and simultaneous installation of a drilling bar in it, which is connected to the working organ, subsequent expansion of the pioneer well to the design diameter by soil damage with the help of the working organ, simultaneous transportation of damage products with the help of a cleaning agent into the space between the expanded pioneer well and the bundle of pipes and installation of the bundle of pipes in the expanded pioneer well.
EFFECT: increased reliability of installation of a bundle of pipes without complications related to sags of surface above a well.
SUBSTANCE: method includes submersion of a pipe into soil with an open end, formation of a soil core in it and its removal from the pipe with the supplied fluid medium by means of breaking and squeezing out in parts. The fluid medium is supplied into the soil core at the outer side of the submerged pipe, using the channel of connection between the pipeline for supply of the fluid medium and the inner cavity of the submerged pipe.
EFFECT: increased efficiency due to reliability of soil core removal by means of creation of conditions to preserve integrity of a broken part of the soil core.
5 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: device includes a pipe-destructing working element with two disc knives, a reamer for enlarging the well diameter, an attachment device of a new plastic pipeline and a tie-rod element in the form of a rope with elements installed on it. Each element installed on the rope is made in the form of a detachable sleeve with three equally spaced radially oriented cylindrical rods, in each of which a fork with a ball is installed so that fixed radial movement is possible. A radial slot is made throughout the length of detachable sleeve between adjacent cylindrical bars; a retaining screw is inserted in a threaded hole in the middle of the above radial radial slot. The pipe-destructing working element is made in the form of an assembled two-section framework, the centre of the rear end face of which has a spherical slot. The reamer is made in the form of an assembled two-section flattened cone, the centres of both end faces of which have spherical slots The rear end face of the pipe-destructing working element and the front end face of the reamer are connected by means of a hinge joint consisting of a pin, on both ends of which balls are installed by means of a thread The rear end face of the reamer and the attachment device of a new plastic pipeline are connected by means of a hinge joint consisting of an additional pin, on one end of which a ball is installed by means of thread and inserted in the spherical slot of the rear end face of the reamer, and the other end of the additional pin is installed in an axial hole of the attachment device of the new pipeline and fixed with a nut
EFFECT: improving reliability of hinge joints and a tie-rod element at passage of curved sections of pipelines.
SUBSTANCE: proposed method comprises driving the trench to accommodate therein the protective jacket to receive the pipeline thereafter. Before driving said trench, in front of motor road or railway said protective jacket is placed to accommodate rotary screw with detachable cutting element at its end face directed toward the road. Cutting tool diameter equals protective jacket OD. Screw length exceeds that of protective jacket, screw extension being directed from the road. Screw shaft is engaged with rotary drive placed at slide rails provided with semicircular ledge arranged atop said rails and directed toward protective jacket above said screw, its end and jacket ends are jointed together by flanges to be bolted together. Slide rails are to be fixed relative to drive by "П"-like bracket secured at drive frame to thrust against slide rails rear end and to surround them from both sides. Then, screw drive is switched on to displace slide rails with revolving screw and protective jacket toward the road so that said jacket penetrates into soil to get completely buried therein. Then, said cutting element and bolts are removed from screw end. Then said screw is withdrawn from said jacket to fit main pipeline section therein.
EFFECT: safe and reliable laying, lower costs and labor input.
SUBSTANCE: installation comprises a frame, a carriage with a control unit arranged on it with a technological adapter, a hydraulic cylinder connected by the body to the frame, and with the stem to the carriage, at the same time the frame has guides for carriage rollers. The frame is made of the carriage frame and the hydraulic cylinder frame connected to each other.
EFFECT: increased reliability of operation and reduction of time for installation assembly and disassembly, increased volume of working space in a well and increased efficiency of performed works due to placement of a hydraulic cylinder with stem length that is larger than in a prototype outside the limits of the well, and whenever it is required to increase force characteristics.
3 cl, 2 dwg
SUBSTANCE: method in accordance with the first version includes formation of a pilot well along a design axis of the installed utility, expansion of the pilot well to the design diameter by damage of soil with the help of a working element connected with a drilling rod, and transportation of products of damage by means of a pipeline connected with a free end of the working element as the latter rotates around the longitudinal axis, for this purpose pressure is pulled at the open end of the pipeline below the atmospheric pressure with the help of a vacuum-forming device. The method in accordance with the second version differs from the method in accordance with the first method by the fact that transportation of damage products is carried out with the help of a drilling rod.
EFFECT: increased efficiency of a working process due to usage of process equipment, principle of operation of which provides for rational use of installed capacity.
3 cl, 2 dwg
SUBSTANCE: device comprises a body, a working organ, a mechanism of tunnelling direction control, which is made in the form of a tip installed in the front part of the body with the possibility of angular displacement, connected with a piston, a spring, a chamber, connected with channels for energy resource supply, and a navigation device fixed in the body, besides, the spring with its rear end is fixed on the front end of the piston, and with the front end - on the body, at the same time the read end of the piston contacts with the specified chamber.
EFFECT: arrangement of a tunnelling direction control mechanism inside a device body prevents negative effect of soil in process of well tunnelling.
3 cl, 4 dwg
FIELD: construction, applicable for trenchless laying and replacement of underground pipe-lines.
SUBSTANCE: a reciprocating striker is positioned in the casing of the pneumatic percussion mechanism. The air-distributing system of the mechanism includes the front and rear working chambers, inlet and exhaust valves and a fixture for closing and opening of the exhaust channels made in the form of a spring-loaded end face stopper coupled to a tractive member. At actuation of the pneumatic percussion mechanism, before the supply of compressed air, the exhaust channels are closed, they are opened after the inner cavities of the pneumatic percussion mechanism are filled with compressed air.
EFFECT: provided automatic cyclic action of the pneumatic percussion mechanism.
3 cl, 3 dwg
FIELD: mining industry.
SUBSTANCE: method includes expanding guiding pipeline by extracting soil from around it by driving shield with rotor working implement. Soil is extracted to value, surpassing needed outer diameter of shield cover. Forming ring-shaped space inside tunnel mine is compacted from back side and continuously filled with liquid. Concurrently sedimentation of extracted soil is drained from lower portion of face. Displacement of driving equipment relatively to guiding pipeline is performed along soft trajectory. Device has means for driving guiding pipeline and driving shield with rotor working implement. Rotor working implement is mounted on body of driving shield. Front surface of working implement with cutters extends beyond outer contour of shield cover, provided with back end compaction. Device is provided with fluid pump device. Force hose of pump is outputted from upward portion beyond outer contour of shield cover. Device for transporting extracted soil from face is made in form of suck-in hose connected to pump device and to lower portion of ring space beyond rotor working implement.
EFFECT: lower transverse loads on guiding pipeline.
2 cl, 1 dwg
FIELD: building, particularly for laying pipelines, for constructing buried passages during pipeline laying, laying cable lines and power lines.
SUBSTANCE: device has hollow conical working tip connected with stem through hinge and through rotary support. Stem is secured in rotary supports to flange mounted on front end of pipeline in the line of puncture direction. Installed in pipeline to be laid is vibrator drive connected to stem. Device has cage connected to stem, vibrator forming circular vibrations and made as unbalance. Unbalance is formed as hollow cylinder sector arranged inside working tip on rotary supports and connected to cage. Device also includes feeding mechanism.
EFFECT: increased operational efficiency.
FIELD: metal pipe driving.
SUBSTANCE: according to proposed method including change of value of backward stroke of striker interacting with operating resilient member and working liquid and stepless change of working liquid pressure at which striker changes from backward to forward stroke by changing force of preliminary compression of setting resilient member interacting with valve, it is proposed to control additional speed of valve forward stroke so that time of valve closing be not less than time of forward stroke of striker. Adjustable hydraulic impact machine contains striker unit and impact energy control device. Striker unit includes housing accommodating first working chamber, striker and operating resilient member. Impact energy control device is made in form of housing with second working chamber and valve interacting with setting resilient member. First and second working chambers are hydraulically coupled. Impact energy control device should be preferably equipped with valve forward stroke speed regulator including hydraulically independent shock-absorbing chamber with shock-absorbing liquid divided into upper and lower parts by ring-shock-absorbing piston arranged on valve. Upper and lower parts of shock-absorbing chamber are interconnected through channels, shutoff valve and restrictor.
EFFECT: enlarged sphere of application and improved reliability in operation.
3 cl, 1 tbl, 1 dwg
FIELD: mining industry, particularly devices for trenchless pipeline laying under roads and other engineering structures.
SUBSTANCE: rig comprises power cylinder with hollow shaft and support, hauling mechanism connected to cylinder and executive tool cooperating with ground and rig operation control means. All above components are put into a pit. Executive mechanism is formed as conical tip connected with rod separated into several chambers and passing into shaft. Power cylinder is made as hydraulic one, hauling mechanism comprises washer with slot and slider arranged in the slot. Washer is rotary installed on the shaft and is restricted from longitudinal displacement. Slider has control arm and figured orifice including hexahedron part and circle part. Each rod chamber is provided with outer groove with hexahedron cross-section mating to hexahedron part of slider orifice. Roller is installed on washer periphery. Secured to support is cam cooperating with roller. The rig is provided with transportable container installed in the pit and having body, bottom and hinged lid. The body comprises orifice for rod receiving and rod guide arranged inside the body. Each rod chamber has outer tapered thread formed on one end part thereof and inner tapered thread formed on opposite end thereof and mating outer one. Rig operation control means is provided with control panel. Conical tip includes radio transmitter to transmit signal indicating rig location in ground. Radio signal receiver linked with control panel is installed above ground surface.
EFFECT: simplified structure and increased reliability.
3 cl, 4 dwg
SUBSTANCE: device comprises screw pivotally connected with the conical working tip without permitting mutual rotation. The tip receives vibrator for generating circular vibrations. The vibrator is made of unbalance mounted on rotating bearings inside the conical working tip and is connected with the motor through a flexible shaft. The motor is mounted inside the additional housing connected with the working tip through a flexible link.
EFFECT: enhanced efficiency.
FIELD: mining industry and building, particularly equipment for trenchless pipe laying under roads and other engineering structures.
SUBSTANCE: device comprises rod and hollow bush connected thereto and enclosing ends of longitudinal composite reamer sections. Radial cut is formed in hollow bush. Rod is composed of sections having equal lengths. Each section comprises outer conical thread created from one section end and inner thread corresponding to outer one formed from opposite section end. Each section has annular groove with length equal to hollow bush thickness. Hollow bush cut encloses outer annular groove. Each section of composite reamer is installed on rod section and supported in two points spaced along section length. Each support point is formed as two mating hexahedrons.
EFFECT: increased structure simplicity and reliability.
FIELD: trenchless underground pipe laying.
SUBSTANCE: invention relates to trenchless laying of underground pipelines of considerable length and preset trajectory. Proposed punch includes body accommodating reciprocating striker with bore in rear part, spool getting into bore by larger diameter step with sliding. Spool consists of branch pipe secured in rear part of body and sleeve connected with branch pipe for sliding and spring-loaded relative to rear part of body with at least one radial pin getting into ring zigzag slot made on part fixed on body. Sleeve of spool encloses front part of its branch pipe, being spool larger diameter step, and said ring zigzag slot is made on outer surface of branch pipe. According to first design version, at least one radial hole is made on front parts of branch pipe and spool sleeve. According to second design version, flats are made additionally on outer surface of branch pipe displaced towards rear part of branch pipe. According to third design version each second cavity on rear side of ring zigzag slot is extended to side of rear part of branch pipe.
EFFECT: improved reliability and increased service life owing to making of pneumatic punch of closed type with reversing of delivery of compressed air simply by switching off and on.
7 cl, 19 dwg
FIELD: mining and building, particularly for trenchless pipeline laying under roads and other engineering structures.
SUBSTANCE: device comprises retaining wall arranged in pit. The retaining wall is adapted to cooperate with power equipment and ground and is formed as movable container having dimensions and formed of material, which provide collapse of container brought into contact with ground. Movable container comprises bottom with processing orifice, vertical cylindrical wall with handling lugs and hinged lid. Power equipment and operator's station are arranged inside the container. Storage vessels are located in lower side parts of movable container.
EFFECT: decreased load applied to ground and reduced support size.
FIELD: mining and building equipment, particularly to drive pipes and form holes in ground for following underground service pipeline laying.
SUBSTANCE: device comprises body, reciprocating hammer arranged in the body and having throttle channel and orifices for air inlet and discharge, as well as elastic valve. Body and hammer define forward stroke and reverse stroke chambers communicating with air supply pipeline through connection pipe. Collar with longitudinal slots is created on rear hammer end and adapted to communicate reverse stroke chamber with atmosphere. Body interior has several ledges. Elastic valve is installed on hammer between collar and above orifices. When the hammer is in its extreme front position inner cylindrical surface of body ledge having lesser diameter is in contact with outer cylindrical surface of elastic valve.
EFFECT: reduced compressed air consumption and increased stroke power due to decreased reverse stroke chamber size and prevention of air compression inside the reverse stroke chamber during forward hammer movement.
2 cl, 1 dwg