Device for the formation of wells in the ground
The invention relates to the construction, namely, devices intended for trenchless laying of wells in the ground, and may find application in the construction of pipelines, underground cable lines and power lines. The device comprises an auger screw, hinge coupled with the tapered working tip on the outer surface of which is fixed a screw blade from the wound, the other wrapped blades of a screw propeller, vibrator circular oscillation installed inside the working tip with a gap, the inner surface of the working tip is fixed a gear wheel with internal teeth, and on the body of the vibrator is external, a smaller number of teeth that are in engagement, and the body of the vibrator through the compensating coupling is connected to the shaft of a screw propeller. The invention simplifies the design of the device. 1 Il.
The invention relates to the construction, namely, devices intended for trenchless laying of wells in the ground, and may find application in the construction of pipelines, underground cable lines and power lines.
A device for installation of wells in the ground, containing the moznosti mutual rotation with him .
The closest in technical essence and the achieved result is a device for the formation of wells in the ground, comprising a screw screw conical working tip with a screw blade on its outer surface with wrapped opposite to the winding of the propeller blades, vibrator circular oscillation installed inside the working tip with a gap, gearbox, installed between the auger screw and the vibrator, the body of which the hinge without the possibility of mutual rotation is connected with the tapered working tip, the driven shaft is rigidly connected to the screw propeller, and leading through the compensating coupling to the housing of the vibrator .
Studies have shown that when running on the internal surface of the working tip of the body of the vibrator develops a torque on the control shaft of the reducer, equal
where FC- perturbing force generated by the vibrator;
d is the diameter of the rolling body of the vibrator;
f - coefficient of friction between the surfaces of the housing of the vibrator tip;
the phase angle (the angle between the line connecting the fulcrum of the body of the vibrator on the surface of the working tip, and the direction of the disturbing force).
When the greater value of the phase angleis the slide housing of the vibrator on the surface of the tip, the body of the vibrator is not rotating). For the steel working tip at f = 0,15 maximum time Tmaxdeveloped by the body of the vibrator drive shaft of the gearbox, without taking into account the gravity of the vibrator is
To increase the time in the prototype between the body of the vibrator and the screw holes of the screw and the working tip has a reducer. The calculations showed that to place in the small the diameter of the working tip of the gearbox with the required parameters is quite difficult, because it is impossible to combine the required strength, the dimensions of the parts with the size of the working tip.
The purpose of the invention is to simplify the design of the device.
To achieve this goal in the device for formation of wells in the ground, comprising a screw screw conical working tip on the outer surface of which is fixed a screw blade from the wound, the other wrapped blades of a screw propeller, vibrator circular oscillation installed inside the working tip with a gap, with the tee which is fixed a gear wheel with internal teeth, and on the body of the vibrator is external, a smaller number of teeth that are in engagement, and the body of the vibrator through the compensating coupling is connected to the shaft of a screw propeller.
The drawing shows a device for the formation of wells in the ground, General view.
Device for the formation of wells in the ground contains screw screw 1, a conical working tip 2, on the outer surface of which is fixed a screw blade 3 with the winding, the other wrapped blades of a screw propeller. Screw the screw 1 and cone work handpiece 2 is connected a support hinge 4. Inside the cone of the working tip 2 with a clearance on the bearings of rotation 5 has a circular vibrator vibrations 6, the body through which the compensating coupling 7 is connected with the shaft screw screw 1. On the inner surface of the conical working tip 2 is fixed a gear wheel 8 with the internal tooth and the body of the vibrator is fixed a gear wheel 9 to the outside, a smaller number of teeth that are engaged.
For the implementation of drilling a well includes the motor of the vibrator 6. The non-balances vibrator, rotating with the engine, creating a disturbing force, which presses the body of the vibrator 6 through bearings rotation 5 to the inner walls of the cone is bus vibrator 6 compensating coupling 7 is connected with the shaft screw screw 1, the last Wencelas into the ground, moves in the direction of penetration, forming a leader well. The reactive torque of the engaged gear pair 8, 9 cone rotates the working tip 2 in the opposite direction. Since the turns of the screw blade 3 cone working tip 2 have a winding that is opposite to the winding coils of a screw of the screw 1, the tapered working tip 2 is also moved in the direction of penetration, expanding the hole to the desired size. Disturbing force of the vibrator 6 through bearings rotation 5 affects the body cone working tip 2, which together with non-balances performs a circular oscillations with a frequency equal to the frequency of rotation of the non-balances perpendicular to the direction of penetration. The center of oscillation of the working tip, i.e. the point at which the amplitude is equal to zero, coincides with a support hinge 4. Off from him, the amplitude increases and reaches its maximum at its cylindrical part, resulting in a tapered working tip 2 causes fluctuations of the soil in the radial direction, which helps reduce friction and clutch in it and the conical surface of the working tip 2 and a screw blade 3.
As the body of the vibrator 6 is connected with the cone the forces engaged in this pair, the maximum phase anglemaxclose to 90and the maximum torque developed by the rotating body of the vibrator, from expression (1) will be
where d- the diameter of the pitch circle of the toothed wheel fixed to the body of the vibrator.
If the torque required for screwing in the screw blades of the screw 1 and a conical working tip 2 exceeds this value, the running body vibrator on the inner surface of the working tip under perturbing forces will remain without rotation of the housing of the vibrator, causing the speed of drilling a well will be reduced to zero and all the energy of the vibrator will be spent on fluctuations cone working tip 2, which, acting on the soil will reduce the force on the education of the well, thereby providing the possibility of further education well.
Swivel screw screw conical working tip, the inner surface of the working tip of the gear wheel with internal teeth, and on the body of the vibrator with the outside, a smaller number of teeth that engages and the connection of the vibrator through the compensating coupling with the shaft snakewoman 50 times, in the result, there is no need for a gearbox, which is mounted between the housing of the vibrator, screw by screw and work the tip in the prototype. Is not difficult and manufacture of gear wheels 8 and 9 required strength, as they occupy the maximum possible size of the inner conical section of the working tip 2, and the internal toothed gear pair with a small difference of the diameters of the pitch circles has a large overlap factor, which allows us to produce gears with small module, and therefore, the same size with a large number of teeth get in the small tip of a large gear ratio equal to
where z1, z2accordingly, the number of teeth of the wheel with the inner 8 and outer 9 tooth.
The proposed device functionality remains the prototype, but is much simpler in design, less metal and reliable in operation.
Sources of information
1. USSR author's certificate No. 899791, M. CL. E 02 F 5/18, 1982.
2. USSR author's certificate No. 977615, M. CL. E 02 F 5/18, 1982.
Device for education skupina screw the blade from the wound, opposite the wrapped blades of a screw propeller, vibrator circular oscillation installed inside the working tip with a gap, wherein the auger screw hinged cone with a working tip on the inner surface of which is fixed a gear wheel with internal teeth, and on the body of the vibrator is external, a smaller number of teeth that are in engagement, and the body of the vibrator through the compensating coupling is connected to the shaft of a screw propeller.
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