Installation for trenchless laying of pipes, raskutti for education and extension wells, a device for centering the shaft of the unrolling device with a drive rod

 

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 present invention includes a group of inventions to form a single inventive concept. The first object of the invention is an installation for trenchless laying of pipes with rotator for the drive shaft of the unrolling device including a planetary gear. Selection of torque through the drive rod to the shaft of the unrolling device is made either from the pinion gear or carrier. The mechanism for moving the carriage in the form of chain transfer scheme doubling of the stroke of the carriage. The second and third objects of the invention are sectional unrolling device for education and the unrolling device for expanding a borehole. In the first unrolling device of the rear section consists of stabilizing the direction of movement of the cylindrical rollers, and the second unrolling device of the rear section consists of a conical folding rollers, provided with an additional eccentric bushings. The fourth object is a device for centering the shaft of the unrolling device with a drive rod, which is further provided with mechanisms regards to the move. The invention provides improved reliability and efficiency and reduce labor intensity. 4 C. and 3 h.p. f-crystals, 19 ill.

The present invention relates to construction equipment, and more specifically to systems for trenchless laying of pipes (cable, heat, water, drainage, sewer and other networks) with the use of the borehole expanders. The proposed installation is mainly suitable for laying in the ground through artificial and natural obstacles (roads, Railways, airfields, underground structures, streets, sidewalks, lawns, parks and other).

Closest to the proposed technical solution is to install (the carriage) to start Raskatov the purpose of education (rolling) wells in the soil, which are then routed communication (patent R. F. No. 2000390). The installation consists of the base, pivotally connected with the base of the guide, which is installed with the possibility of rotation in the vertical plane and stopped in intermediate positions, the rotation mechanism of the guide carriage can move along the guide, mechanism to move the carriage and rotator for the drive shaft rascacielo well. In the known installation during the rotation of the drive rods having a large friction force between the clutch connecting rod and the borehole wall. This fact limits the scope of application installation on the distance of penetration and the diameter of the hole for communication. In addition, the installation does not provide adjustment of the position of the guide in a horizontal plane, thereby increasing the complexity of its installation in a given direction.

The closest analogue of the proposed unrolling device for formation of wells is the unrolling device (application No. 98104119, B. I. No. 35, 1999), which is made sectional and includes a drive shaft located eccentrically on the drive shaft and connected with the last eccentric sleeve mounted on bearings for rotation relative to the drive shaft tapered rollers and are mounted between the eccentric bushings in each rink spacer sleeve to prevent axial movement of the eccentric bushing. The disadvantages of the known constructions of the unrolling device can be attributed to the low precision of ROP. In heterogeneous soils is the deviation of the unrolling device from a specified direction.

The closest analogue to offer Rodney rod drive shaft, mounted on the drive shaft eccentric bushing placed on eccentric bushings bearings, which rotatably relative to the drive shaft installed gradually increasing in diameter conical rollers, sealing elements located between the end of each rink and the flange of the respective eccentric bushings associated with the end of the drive shaft of the unrolling device by means of a swivel device for tightening in advanced borehole communication.

A disadvantage of the known designs of the unrolling device is small resource of his work, as with a slight curvature of the borehole may damage the front end of the shaft. In addition, the unrolling device may be lost because of the impossibility of retrieving it from the well due to jamming in the process of rolling.

Closest to the technical essence and the achieved result for the proposed device for centering the shaft of the unrolling device with the drive rod is a device for centering and direction of the pipelines at trenchless laying of pipes (and.with. The USSR №945301 B. I. No. 27, 1982), containing mounted on the bottom of the receiving pit platform, guide, regalia guide the mechanism for moving the guide to the left or right in the horizontal plane.

Famous fixture design does not provide rotation of the guide in the vertical and horizontal planes, and does not provide the reciprocating movement of the guide, which increases the volume of work on the centering shaft of the unrolling device with the drive rod.

The aim of the present invention is to expand the scope of an installation for trenchless laying of pipes and labor reduction; improving the accuracy of the sinking of the unrolling device for formation of wells and improving the reliability of its work; the resources of the unrolling device for expanding a borehole and increasing reliability, and reducing the complexity of the execution of works on the centering shaft of the unrolling device with the drive rod.

This objective is achieved in that the rotator to the drive shaft of the unrolling device includes a planetary gear containing a pinion gear, a carrier, a set of satellites, mounted in the driver, and the Central wheel which engages with the pinion by means of satellites, and the selection of torque through the drive rod to the shaft of the unrolling device manufacturer is passing under the scheme of doubling the stroke of the carriage, moreover, the installation is further provided with a mechanism for rotating the guide in a horizontal plane, which is made in the form of a flange and a mechanism for rotating the guide in the vertical plane performed according to the type of screw - nut.

The rear section of the unrolling device for formation of wells consists of stabilizing the direction of movement of the cylindrical rollers, and the first and last rollers of this section have a conical shape, wherein in the first and last rollers of the sections of the unrolling device mounted angular contact bearings, preloaded with the rear side of the rink screw, and at the tail end of the unrolling device on the drive shaft installed a spring to preload all eccentric and spacer sleeves each other to select the gap between them.

The unrolling device for expanding a borehole made in sections, the rear section of the unrolling device consists of a conical folding rollers, provided with an additional eccentric bushings mounted on the drive shaft and bearings placed between the eccentric bushings and more eccentric bushings, while the front end of the drive shaft of the first section of the unrolling device is connected to the drive rod peredelom, on the outer surfaces of the coupling installed the bearings, one of which is mounted a bearing with an outer spherical surface, and the other tapered roller inner spherical surface cooperating with the outer surface of a support.

Moreover, the unrolling device for expanding a borehole equipped with a device for tightening in advanced borehole communication, including the shell and the cone on which you installed the breadcrumbs with the possibility of moving in the radial direction by means of a screw rod placed inside the cone.

For centering the drive shaft of the unrolling device that extends the well, with the drive rod of the device is further provided with mechanisms to rotate the guide in the vertical and horizontal planes, and mechanism for reciprocating movement of the guide with the possibility of placing the last of the unrolling device.

The present invention is illustrated specific embodiments thereof and the attached drawings, in which:

Fig.1 - installation for trenchless laying of pipes.

Fig.2 is a view along arrow a in Fig.1.

Fig.3 is a planetary gear. Selection torque otunga.

Fig.6 - flange.

Fig.7 - cross section a-a in Fig.6.

Fig.8 - unrolling device for formation of wells.

Fig.9 - node a in Fig.8.

Fig.10 - the node B in Fig.8.

Fig.11 - the unrolling device for expanding wells.

Fig.12 - node a in Fig.11.

Fig.13 - the node B in Fig.11.

Fig.14 - node In Fig.11.

Fig.15 - node G in Fig.11.

Fig.16 - device for centering the shaft of the unrolling device with the drive rod.

Fig.17 - section a-a in Fig.16.

Fig.18 is a diagram of the formation of the well through the road.

Fig.19 diagram expansion of the well and the delay in the extended borehole communication through road.

Installation for trenchless laying of pipes Fig.1, 2 comprises a base 1, is connected by means of hinge 2 with the guide rail 3, which is installed with the possibility of rotation in the vertical and horizontal planes, and stopped in intermediate positions, the carriage 4 can move along the guide; the transfer mechanism 5 of the carriage, in the form of chain transfer scheme doubling of its stroke, the rotator 6 to the drive shaft of the unrolling device through a set of drive rod 7, which is mounted on the carriage; and anchors 8, installed on the base. The mechanism for rotating the guide in the vertical plane is made by type screw - nut 10.

In the installation at the ends of the base and the guide with the two sides set screw lugs 11 with the possibility of their movement and interaction with the walls of the working pit. Anchors that are installed on the base and intended for fastening the unit to the ground, provided with a detachable motor 12. The rotator to the drive shaft of the unrolling device is equipped with a planetary gear (Fig.3, 4), which contains the pinion gear 13, the led 14, a set of satellites 15, mounted in the driver, and the center wheel 16 which engages with the pinion by means of satellites, and the selection of torque from the rotator through the drive rod to the shaft of the unrolling device is made either from the pinion (Fig.3) or from the carrier (Fig.4).

The drive from unrolling device rotator through the drive rod (Fig.5), one end of which is using a spline connection 17 and the locking finger 18 (Fig.6) is bonded with the flange 19, mounted either on the top gear or the planetary gear unit by means of bolts 20 (Fig.3), and the other end using a spline connection 21 (Fig.5) and the locking finger 22 is bonded through a set of drive rod with the shaft of the unrolling device. Torque from rotator is transmitted through a lead ø the limited rotation about the axis of the flange, then through the drive rod to the shaft of the unrolling device.

The unrolling device for formation of wells (Fig.8, 9, 10) made sectional and consists of a drive shaft 24 located eccentrically on the drive shaft and connected to the last eccentric bushing 25 mounted in bearings 26 for rotation relative to the drive shaft tapered rollers 27 and installed between the eccentric bushings in each rink spacer sleeves 28 to prevent axial movement of the eccentric bushing. The rear section of the unrolling device consists of stabilizing the direction of movement of the cylindrical rollers 29, and the first and last rollers 30 in this section have a conical shape. In the first and last rollers of the sections of the unrolling device mounted angular contact bearings 31, cringed at the rear of the rink by means of bushings 32, 33, 34, 35 screw 36, and at the tail end of the unrolling device on the drive shaft installed spring 37 to tighten all Cam and spacer sleeves each other to select the gap between them, and between the sleeves 34 and 35 mounted sealing element 38.

The unrolling device for expanding a borehole of Fig.11 - 15, containing associated with the drive rod of the drive shaft 39, mounted on the s with the possibility of rotation relative to the drive shaft installed gradually increasing in diameter conical rollers 42, sealing elements 43, located between the end of each rink and the flange of the respective eccentric bushings associated with the end of the drive shaft of the unrolling device by means of a swivel device 44 45 to tighten in the expanded bore hole of communication. The unrolling device is made in sections, the rear section of which consists of a conical folding rollers 46, provided with an additional eccentric bushings 47, mounted on the drive shaft, and bearings 48 disposed between the eccentric bushings and additional excentrically sleeves, while the front end of the drive shaft of the first section of the unrolling device is connected to the drive rod through the hinge clutch 49, excluding the fracture of the shaft of the unrolling device when the curvature of the borehole. The Cam coupling includes two coupling halves 50, 51, pivotally interconnected by means of a shaft 52, with the outer surfaces of the coupling installed the bearings 53, one of which is mounted a bearing 54 with the outer spherical surface, and the other conical rink 55 with an inner spherical surface, interacting with the outer surface of a support. Folding rollers provide easy retrieval of riscatto left rotation (reverse) of the shaft of the unrolling device of the axes of all rollers of the rear section are shifted in the direction of the axis of the borehole, resulting in a gap between the outer surface of the rollers and the borehole wall.

Device for tightening in advanced borehole communication (Fig.15) includes a shell 56 and the cone 57, running crackers 58 can be moved in the radial direction by means of a screw rod 59, is placed inside the cone.

Device for centering the shaft of the unrolling device with a drive rod (Fig.16, 17) contains installed on the bottom of the receiving hollow of the platform 60, the guide 61, the adjustment mechanism mounted between the platform and the guide containing the Jack 62 for raising and lowering the guide and mechanism 63 to move the guide to the left or right in the horizontal plane. According to the invention, for centering the drive shaft of the unrolling device that extends the well, with the drive rod of the device is further provided with mechanisms to rotate the guide in the vertical and horizontal planes 64 and mechanism for reciprocating movement of the guide 65 with the possibility of placing the last of the unrolling device.

Installation for trenchless laying of pipes works as follows. Let's look at primary tear off two pit: work 66 and receiving 67. In the working pit set installation 68 so that the axis of the unrolling device 69 and the axis of the drive rod 70 were focused on the design axis 71 of the future well under communication. The installation is connected through hose 72 to pump hydraulic station 73, installed outside of the pit.

When enabled, the drive is tamoseviciene the unrolling device into the ground. When the movement of the unrolling device of the soil is displaced in the radial direction and is formed bore 74, around which a compacted area of ground 75. After the release of the unrolling device into the receiving pit, it is removed and to the drive rod connecting the unrolling device for expanding a borehole (Fig.19). The connection of the unrolling device to drive the rod is accomplished using a fixture (not shown) for centering the shaft of the unrolling device with the drive rod. The extension of the well and the delay in the expanded bore hole 76 communication 77 produced in the direction from the receiving pit to the desktop. When extending bore is formed around it the densified zone soil 78, which increases the durability of communication.

Claims

1. Installation for trenchless laying of pipes, including osnovnoi plane and stopped in intermediate positions, the rotation mechanism of the guide, the carriage is moved along the guide, the rotator to the drive shaft of the unrolling device through a set of drive rods and a mechanism for moving the carriage, characterized in that the rotator to the drive shaft of the unrolling device includes a planetary gear containing a pinion gear, a carrier, a set of satellites, mounted in the driver, and the Central wheel which engages with the pinion by means of satellites, and the selection of torque through the drive rod to the shaft of the unrolling device is either pinion or carrier, and the mechanism for moving the carriage in the form of chain transfer scheme doubling of the stroke of the carriage, and installation is further provided with a mechanism for rotating the guide in the horizontal plane.

2. Installation under item 1, characterized in that the mechanism for rotating the guide in the horizontal plane is made in the form of a flange and a mechanism for rotating the guide in the vertical plane performed according to the type of screw - nut.

3. The unrolling device for formation of wells, which is made sectional and includes a drive shaft located eccentrically on the drive shaft and connected to the ski rollers and are mounted between the eccentric bushings in each rink spacer sleeve to prevent axial movement of the eccentric bushing, characterized in that the rear section of the unrolling device consists of stabilizing the direction of movement of the cylindrical rollers, and the first and last rollers of this section have a conical shape, wherein in the first and last rollers of the sections of the unrolling device mounted angular contact bearings, preloaded with the rear side of the rink screw, and at the tail end of the unrolling device on the drive shaft installed a spring to preload all eccentric and spacer sleeves each other to select the gap between them.

4. The unrolling device for expanding a borehole containing the associated drive rod drive shaft mounted on the drive shaft eccentric bushing placed on eccentric bushings bearings, which rotatably relative to the drive shaft installed gradually increasing in diameter conical rollers, sealing elements located between the end of each rink and the flange of the respective eccentric bushings associated with the end of the drive shaft of the unrolling device by means of a swivel device for tightening in advanced borehole communication, wherein the unrolling device is made in sections, the rear section consists of konice the Ohm shaft, and bearings placed between the eccentric bushings and more eccentric bushings, while the front end of the drive shaft of the first section of the unrolling device is connected to the drive rod through the hinge clutch.

5. The unrolling device under item 4, characterized in that the Cam coupling includes two coupling halves, hinged together by a shaft, with the outer surfaces of the coupling installed bearings, one of which is mounted a bearing with an outer spherical surface, and the other tapered roller inner spherical surface, interacting with the outer surface of a support.

6. The unrolling device under item 4, characterized in that the device for tightening in advanced borehole communication includes the shell and the cone on which you installed the breadcrumbs with the possibility of moving in the radial direction by means of a screw rod placed inside the cone.

7. Device for centering the shaft of the unrolling device with a drive rod that contains installed on the bottom of the receiving pit platform, the guide, the adjustment mechanism mounted between the platform and the guide contains a Jack for lifting and opuscula fact, for centering the drive shaft of the unrolling device that extends the well, with the drive rod of the device is further provided with mechanisms to rotate the guide in the vertical and horizontal planes, and mechanism for reciprocating movement of the guide with the possibility of placing the last of the unrolling device.

 

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