A device for the trenchless laying of polyethylene pipelines
The invention relates to earthworks and can be used for trenchless laying of polyethylene pipelines small diameter, plastic drainage, cable, and other long items. A device for the trenchless laying of pipelines includes base machine, Ripper with support rollers and the guide duct positioned behind the Ripper. It contains a pressure roller that is installed with the possibility of interaction with the pipe during the laying of the pipeline. The diameter of the pressure roller corresponds to the diameter of the road wheels are located on the same shaft with the pressure roller. Improving the quality of pipeline laying and reduced the energy intensity of the workflow. 4 Il.
The invention relates to earthworks and can be used for trenchless laying of polyethylene pipelines small diameter, plastic drainage, cable, and other long items.
Known granolithic containing the basic machine and the box set for Ripper /A. with. 973734 THE USSR, MKI 3 E 02 F 5/10, 1982/.
The closest analogue on essential features of the claimed device is a cable-handling vessel, containing basic mastrovin cutting knife /A. with. 1507923 the USSR, MKI 4, E 02 F 5/10, publ. 1989/.
The obstacles to achieve the desired technical result is significant logistical costs in the production work, as well as the low quality of the pipeline laying.
The objective of the invention is the reduction of tension and surface damage in polyethylene pipe during laying, caused by the friction of the pipe on the back wall of the box.
The technical result consists in increasing the quality of the packing due to force-feed pipe by removing damaging it and reducing the energy intensity of the workflow.
This technical result is achieved in that the device for the trenchless laying of pipelines containing basic machine, Ripper with support rollers and the guide duct positioned behind the Ripper, the feature is that it contains a pressure roller that is installed with the possibility of interaction with the pipe during the laying of the pipeline, the diameter of the pressure roller corresponds to the diameter of the road wheels are located on the same shaft with the pressure roller.
A device for the trenchless laying of pipelines is illustrated by drawings, where Fig.1 and the position; in Fig.4 - section (Fig.2 section a-a) at the place of installation of the track roller and the pressure roller.
A device for the trenchless laying of pipelines contains the base machine 1 (e.g., tractor), Ripper 2, the guide frame 3 positioned behind the Ripper 2. According to the guiding frame 3 moves polyethylene pipe 4, coiled with Bay 5 hung on the front of the machine base 1. The Ripper 2 attached rollers 6, which are rigidly (for example, by means of keys) is installed on the shaft 7, as well as the pressure roller 8, by means of rods 9. Due to the spring 10 is provided by the contact force of the track roller 6 to the ground and the pressure roller 8 to the pipe 4 in the working position and the contact force of pressure roller 8 to the Ripper 2 in the transport position. Rear Ripper 2 mounted support rollers 11, which is served by the pipe 4. The translation device relative to the base machine 1 from transport to working position and back is carried out by means of the hydraulic cylinder 12 and the beams 13. Track rollers 6 provided with a lug 14. The force of the compression spring 10 is adjustable tensioning device 15. Mounting springs 10 to the shaft through bearings 16.
At the beginning of the constructed pipeline, nasrabad craplets the free end of the pipe 4 for the initial fixing the position of the pipeline. Then the tractor 1 moves along the axis of the track laying of the pipeline. Simultaneously begins the excavation and laying of the pipeline. The soil is developed Ripper 2 and the tube 4 is forcibly fed into the guide duct 3 and is placed in the soil due to the pressure roller 8, through which the shaft 7 rotates together with the supporting rollers 6. Destroyed the soil is partially diverted to the sides from the axis of penetration and the resulting ground level H1for guiding duct 3 is somewhat lower relative to the level H of penetration of the Ripper 2 due to the forces of internal friction, i.e., the absence of complete backfill of the developed layer. This circumstance allows the presser roller 8 with a diameter equal to the diameter of the supporting rollers 6. Track rollers 6 are pressed against the ground by springs 10 and traction as a result of interaction with the soil get forced rotation is transmitted through the shaft 7 on the pressure roller 8, which is in contact with the ground is not. Modules velocities on the rim of the track roller 6 and the rim of the clamping roller 8 are equal, because equal to their diameters and correspond to the speed of the Prime mover 1. To avoid slipping when rolling on the ground rollers 6 provided Grun is the main rollers 11. The force of the compression spring 10 is adjustable tensioning device 15. Mounting springs 10 shaft through bearing 16, is made to reduce friction in the bearings.
When the finished device is transferred to the transport position by a hydraulic cylinder 12 through the beams 13. If necessary bypassed the rest of the pipe 4 may be fixed relative to the Ripper 2 pressure roller 8 due to the lifting shaft 7. This spring 10 is first stretched, and then, passing through the hinge 17 of the mounting rods 9 to the Ripper 2, shrinks again, locking the free end of the pipe 4.
Thus, the speed of the feed pipe is provided equal to the speed of the machine base due to the pressure roller having the same diameter with the rotating support rollers, which, in turn, rotate from traction as a result of contact with the ground.
A device for the trenchless laying of pipelines containing basic machine, Ripper with support rollers and the guide duct positioned behind the Ripper, characterized in that it comprises a pressure roller that is installed with the possibility of interaction with the pipe when the use is as the same shaft with the pressure roller.
FIELD: equipment for pipeline laying and repair.
SUBSTANCE: mechanism comprises several identical carriages with outer and inner frames. Outer frames are provided with longitudinal guiding paths. Inner frames have guiding running wheels. Outer frames are installed on running wheels by longitudinal guiding paths. Each frame is provided with clip-on chucks connected one to another by hydraulic cylinders located in corresponding carriages. Carriages have support means resting upon pipeline. Support means are installed on inner frames. One carriage is fixedly connected with neighboring carriage through mounting panel used for attached implements mounting.
EFFECT: simplified structure and increased productivity.
FIELD: construction engineering.
SUBSTANCE: invention relates to methods and devices used for repair of underground pipelines and it can be used for compacting soil at sides and under pipelines of large diameter at repairing with digging down. Proposed device has single-bucket excavator as base machine whose working equipment is source of compacting motions, mechanism to transmit said motions to soil secured to dipper stick and working members with compacting plates. Mechanism to transmit compacting motions to soil is made in form of cylindrical ram connected to dipper stick of excavator and provided with fork on lower end whose eyes are connected with saddle. Ram is movable enclosed by cup with eyes on its upper end carrying rocker with tie-rods. Working members are made in form of two opposite bell cranks provided with compacting plates on ends. Bell cranks are hinge-connected with eyes of fork by means of common axle. Bell cranks are hinge-connected with tie-rods of rocker, and eyes of cup are hinge-connected with shackle of excavator dipper stick by means of tire-rod.
EFFECT: provision of guaranteed compaction of soil under large-diameter pipeline.
FIELD: earth-moving machinery.
SUBSTANCE: invention relates to device for digging and removing soil from under the pipeline at major and selective repairs. Proposed device contains working member, working member framework and working member shifting mechanism. The latter contains truck based on pipeline and secured to frame-work of working member, and self-propelled machine based on edge of trench. Truck is provided with beam based on pipeline and connected by flexible members with framework of working member and with self-propelled machine. Flexible members connected with framework of working member are arranged at both sides of pipeline, being connected with ends of beam. Flexible member connected with self-propelled machine is connected with central part of beam by eye. Self-propelled machine is made in form of pipe layer to boom of which bracket with guide sheave is connected. Flexible member connected with eye is passed through guide sheave of boom bracket and is connected with hook of pipe-layer either directly or through power cylinder. Self-propelled machine is made in form of excavator. Free end of flexible member connected with eye is connected also with bucket of excavator.
EFFECT: improved operation reliability.
3 cl, 1 tbl, 5 dwg
FIELD: irrigation building, particularly for laying collector-and-drainage system in the case of high ground water level (which is below plough-layer).
SUBSTANCE: method involves erecting pits along drain lines having inclined walls, wherein pit wall inclination is less than natural filtering material slope; filling the pits with filtering material along drain-installing machine travel so that filtering material volume is equal to that of blinding material; laying drain lines along pit axes with narrow-trench drain-installing machine after drain-installing machine bin is filled with filtering material up to level above ground water one, wherein drain laying rate exceeds rate of water percolation from watered ground of trench backfill; maintaining constant filtering material level in the bin due to supplying thereof from pit; additionally leveling and compacting upper filtering material surface. Device comprises main machine, active working tool with reverse operating chain rotation, guiding draining pipe chute and bin. Bin has front cutting part, expandable transversal walls and longitudinal walls bending in vertical plane. Receiving windows are formed in longitudinal walls. Splitter located in front of working tool is mounted on working tool frame and may perform vertical displacement. Splitter comprises plough and side wings enclosing working tool from two sides and connected to plough in front wing parts and to hinges in rear parts thereof. The hinges are connected to bin in front of receiving windows having additional wings installed behind receiving windows to allow installation angle change. Device has gate extending at 3°-4° angle to drain line and located in lower bin part.
EFFECT: increased capacity and drain laying quality, as well as following drainage operational efficiency.
4 cl, 4 dwg
FIELD: land reclamation, particularly to lay drain collection system in zones having ground water level above drainage laying level.
SUBSTANCE: method involves loosening fertile ground layer along drain laying axis; digging out channel; forming kerbs of excavated fertile ground; developing trench with chain working tool performing reverse rotation without ground lifting to surface; laying drainage pipe; backfilling the trench and the channel. Pulp consisted of crashed ground and water is extracted from lower trench part during drainage laying and the extracted pulp is supplied into channel or to surface of material used for trench backfilling. Device comprises basic machine, active working tool rotated in reverse direction, drainage pipe tray, box-like hopper with front cutting part, namely knife including post and plowshare. Suction dredge is installed inside the plowshare. Suction dredge has suction line communicated with zone between active working tool and knife through windows formed in front plowshare section. Pressure supply pipeline is communicated with distribution pipelines through intermediate pipeline and bypass gate operated by lever mechanism.
EFFECT: increased productivity and quality of drainage laying in water-saturated ground.
2 cl, 2 dwg
FIELD: hydraulic and irrigation building, particularly to lay collection drain system in water-saturated ground of degraded irrigated agricultural lands.
SUBSTANCE: method involves laying collection and drainage pipes with the use of drainage laying machine, which performs ground excavation, grinding and stirring in trench to fluidize the ground by means of chain active working tool, which rotates in direction reverse to movement direction; moving grinded and stirred fluidized ground in space between passive working tool and trench walls; covering laid collection or drainage pipe with grinded and stirred fluidized ground, wherein the pipe is inserted in trench through guiding tray of passive working tool; supplying water in trench during pipe laying. Before trench excavation and collection and drainage pipe laying ground water level is aligned with collection and drainage pipe paths by forming pits along the paths, filling the pits with water and holding the pits filled with water for a certain time to moisten underlaying ground with water flowing along the paths and to change ground water level. After that collection pipes of the first path and then drainage pipes attached to the collection pipes are serially laid concurrently with water supply into pits. Water for guiding tray filling is supplied since the beginning of collection or drainage pipe lowering in trench. Passive working tool of drainage laying machine is made as hollow rigid body with cross-section streamlined by grinded stirred ground and having sharpened nose part. Guiding tray is provided with closed cross-section and has inner dimensions mating in shape in dimensions with that of collector and drainage pipes to be moved through the tray. The guiding tray is created of material having low coefficient of friction between tray and collection/ drainage pipe covered with filtering material. The guiding tray is longitudinally installed inside hollow body and may be removed from the body for guiding tray replacement in the case of outer collection/drainage pipe dimension change. Pump is installed in front part of basic machine. Delivery pipeline is connected to guiding tray in upper part thereof and is adapted to supply water in guiding tray during collection or drainage pipe lowering in trench.
EFFECT: increased rate of agricultural or industrial land dewatering, reduced costs and power inputs for collection and drainage system construction.
5 cl, 2 dwg
FIELD: mining and construction engineering.
SUBSTANCE: according to first design version, excavator for removing soil from under pipe area of pipe laid under ground near surface contains body towed by cable carrying frame of cutters connected for turning to front part of body and provided with pair of cutters on lower end. Carrying frame can be set in spread position, in which cutters are moved off from each other, and in brought together position, in which cutters are brought to each other. Excavator contains also support frame of sleds connected for turning to rear part of body and carrying pair of sleds on its lower end. Support frame can be set in spread position in which sleds are moved off from each other, and in brought together position, in which sleds are brought to each other. According to second design version, excavator contains front frame and rear frame installed on buried pipe, drive means to provide movement of rear frame relative to front frame, guides to direct rear frame in motion, and frame clamping the pipe connected for turning to rear frame and carrying pair of grip sections on its lower end connected to rear frame. Said carrying frame can be set in spread position in which sections of grips are moved off from each other, and in brought together position, in which sections of grips are in contact with surface of buried pipe.
EFFECT: effective removal of soil from under laid pipe when preparing pipeline for repair without damage of pipe outer layer.
10 cl, 38 dwg
FIELD: mining and construction, particularly earth-moving operations to remove ground from under buried pipeline located near ground surface.
SUBSTANCE: system is adapted to remove ground from under buried pipeline laid near ground surface after ground removal from area located over pipeline and from pipeline sides. Earth-moving system comprises main frame to be installed on buried pipeline and cutting tool frame supported by main one. Cutting tool frame has pair of rotary cutting tools arranged on lower side thereof. Rotary cutting tools may be installed in opened position in which cutting tools are spaced apart and in closed position in which they are located close to each other. Bearing bodies for cutting tool supporting are arranged so that neighboring ends thereof are inclined inwards with respect to vertical axis in closed cutting tool position. Each rotating cutting tool comprises rotor rotating about axis of corresponding bearing body and carrying a curtain number of cutting members connected to annular outer surface thereof. Enveloping line defined by cutting member ends of each rotor is formed so that enveloping line diameter is maximal in central part thereof with respect to rotor axis and gradually decreased from central part of enveloping line towards upper and lower ends thereof. Lower part of enveloping line located under central rotor part is near envelope line of another rotor.
EFFECT: increased ground excavation efficiency along with decreased system size.
12 cl, 11 dwg
FIELD: mining and construction, particularly earth-moving operations to remove ground from under buried pipeline laid near ground surface.
SUBSTANCE: earth-moving system comprises main frame to be installed on buried pipeline and cutting tool frame supported by main one. Cutting tool frame has pair of rotary cutting tools arranged on lower side thereof and may slide with respect to main one. Main frame comprises front seat located from front side thereof in system movement direction, rear seat located behind front one and two rails extending in longitudinal direction and connecting right and left upper sides of front seat correspondingly with right and left upper sides of rear seat. Moving means adapted to guide cutting tool frame along said rails to provide mutual movement of cutting tool frame and main frame along buried pipe are also provided. Main frame has the first fixing means to secure thereof to buried pipe during cutting tool frame movement. Cutting tool frame is provided with the second fixing means to secure thereof to buried pipe during main frame movement. To excavate ground main frame and cutting tool frame may serially move along buried pipe.
EFFECT: increased ground excavation efficiency due to improved digging operation and rotary cutting tool movement.
2 cl, 10 dwg
FIELD: reclamation building, particularly to create accumulation-and-drainage system in the case of ground-water level exceeding drainage laying level.
SUBSTANCE: method involves digging-out trench with the use of chain reversely rotating working tool of narrow drainage machine along with excavated ground movement between trench walls and drainage machine hopper; forming drain communicated with trench through guiding member. Drain includes two pipes covered with synthetic filter and connected with each other by means of flexible connection members so that drain string is created. Drain is laid in trench by drain insertion in guiding member so that major drain cross-sectional axis extends along trench axis. Drain is laid on trench bottom so that major cross-sectional axis thereof is directed obliquely to trench axis and drain passes in depressions made in trench walls for distance of not more than 0.2 of string width. One pipe is sealed with caps and opened after drain-water level reduction. Device for said method realization comprises narrow draining machine including basis vehicle, chain reversely rotating working tool, guiding member, hopper defined by two longitudinal and two transversal vertical walls and provided with front cutting part, as well as hollow plough share. Plough share has removable shaped side wings installed at cutting part thereof. Guiding member is arranged in hopper and includes vertical post joined to plough share interior through spiral section. Receiving orifice of guiding member at vertical post is directed so that major cross-sectional axis extends along device axis. Outlet plough share orifice is directed so that major cross-sectional axis thereof is transversal to device axis.
EFFECT: increased drain laying quality and decreased costs for further device operation.
3 cl, 6 dwg