Device for driving casing strings |
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IPC classes for russian patent Device for driving casing strings (RU 2245964):
    
 Tubular pile, encased in concrete, the method of driving piles / 2236505
The invention relates to tubular piles, enclosed in concrete
 Device for immersion in the soil pipes / 2135692
The invention relates to the field of construction equipment and is intended mainly for diving into the ground metal pipes, primarily for the trenchless laying of underground communications
 Locking device / 2099471
 Pile driving diesel hammer / 2098556
The invention relates to the construction of pile bases, in particular to the hammers single action for pile driving in connected and dense malovlazhnom soils and in water-saturated soft soils
 Electromagnetic hammer / 2026924
 Device for driving casing strings / 2245964
Device is suspended on flexible support of balancing mechanism and includes striker bar with tail piece, head piece of casing pipes, spring and locking element placed on tail piece. Tail piece of striker bar is made with stopping clamp and is provided with support washer. Locking element is made with possible displacement along tail piece axis. Spring is mounted between support washer and locking element.
 Method for cast-in-place pile building in collapsible ground / 2266368
Method involves drilling pilot hole; installing casing pipe connected to puncher; punching the well ground by dropping load on the puncher through casing pipe to reach design point and enlarging the casing pipe; arranging reinforcement case in the pipe; filling the well with concrete mix as casing pipe moves upward; compacting the concrete mix. In the case of pile with 300-1500 mm diameter forming and in the case of collapsible ground layer thickness up to 18 m or 18-50 m ratio between pilot hole depth and collapsible ground thickness is 1:(4.5-6) and 1:(1.5-5). The puncher has reinforced concrete tip and head made of tube with outer diameter equal to inner diameter of pilot hole. Welded to the head are centering rings. The tip has ring to engage thereof with technological control rod provided with thread, washer with retainers and nut on opposite end thereof. Ratio of height H of upper head part provided with centering rings to length of casing pipe to be installed in the head is 1:(20-30). Ratio between outer puncher diameter D and outer diameter d at tapered part ℓ thereof is equal to 1:0.8. Length ratio between cylindrical head part L and cylindrical tapered part ℓ is equal to 1:0.6. Angles γ of head and head transition area leading to tapered part ℓ are equal to 30°. Difference between outer puncher diameter D to outer casing pipe T diameter is 90-100 mm.
 Electric hammer / 2282029
Electric hammer comprises cylindrical body with three-phase winding located on inner body surface and tubular striking rotor slidably arranged in the body. The striking rotor is provided with excitation coils and short-circuited current-conducting rings located on outer striking rotor surface at poles thereof. The electric hammer has set-on weight installed on cylindrical surface thereof and connected to the surface and comprises striking rotor position sensors. Electric hammer has movable anvil block having case sealed to lower, inner part of cylindrical hammer body. The anvil block comprises damping chamber. High-pressure air chamber is defined by striking rotor cavities and cylindrical hammer body over the striking rotor and is connected to compressor by pipeline provided with check valve. Damping chamber of anvil block is communicated with ambient space through high-pressure safety valve, which in turn is linked to compressor through check valve. Lower part of anvil block has air-tightly installed cylindrical transmission power plate supported by anvil block case. Electric hammer also has power supply system, which controls three-phase winding of cylindrical body, and striking rotor excitation system.
 Electromagnetic hammer / 2295025
Electromagnetic hammer contains cylindrical magnetic duct body with coaxially mounted electromagnetic coils of the same name of direct and reverse drive, guiding pipe, ferromagnetic strikers, indicators of upper and lower positions of ferromagnetic striker, energy feeding and control system. Electromagnetic hammer consists of n elementary electromagnetic hammers, mounted successively one on top of another. Between ferromagnetic strikers of elementary electromagnetic hammers, non-magnetic steel spacer plates are inserted, each having length equal to drive value of ferromagnetic striker. Above the uppermost ferromagnetic striker and below lowermost ferromagnetic striker, hermetic hollows are formed. Electromagnetic hammer is provided with n load masses. Electromagnetic coils of the same name are connected between each other synchronously and serially and have divided hollow disks. Each electromagnetic coil of the same name together with part of body of elementary electromagnetic hammers is made of identical sections. Guiding pipe and magnetic ducts are made hollow. Guiding pipe of electromagnetic hammer has longitudinal recess, filled with non current-conductive material.
 Electric hammer / 2315181
Electric hammer comprises body with three-phase winding of linear induction motor stator adapted to receive reciprocating hollow striking armature installed therein in fluid-tight manner. The striking armature is monolithic in lower part and includes short-circuited current-conducting winding formed from outer surface thereof. Hammer comprises anvil block with damping means. Linear induction motor stator winding is installed in upper part of cylindrical electric hammer body, which is provided with tubular striking armature position sensors. Cylindrical body of electric hammer is installed inside cylindrical sealed shell so that lower and upper chambers are created. Chamber lengths are equal to cylindrical body length and striking armature travel correspondingly. The upper and lower chambers are freely connected with each other. Upper chamber is communicated with striking armature interior. Lower chamber has pipeline with check valve. Lower chamber and striking armature interiors are partly filled with heat-conductive and electrical insulation liquid. Remainder zones of lower chamber, striking armature interior and total upper chamber are filled with high-pressure heat-conductive gas. Lower chamber has protective safety valve. Vacuum chamber is created between lower monolithic striking armature part and anvil block. Damping means is installed in lower monolithic part of cylindrical electrical hammer body in fluid-tight manner and may reciprocate relatively the body. Cylindrical fluid-tight shell has additional weight. Short-circuited current-conducting winding of linear induction motor stator is linked to frequency-regulated power supply and control system.
 Electric hammer / 2379422
Electric hammer contains a body with a three-phase primary winding on its internal surface. The body comprises a floating a head anchor with a short-circuited conductive winding on its external surface. It also accommodates head anchor position sensors and a frequency-controlled supply and control system, a hatchway with shock-absorbers. The electric hammer is made of N primary bodies and startors respectively with bearings on their ends. There bodies in upper and lower parts have guides of the head anchor travel. Said bodies and guides are placed in the second body formed along the full length of the first bodies and guides with air gaps, The guides in upper and lower parts have the apertures connected with said gaps. The upper cover of the upper guide is provided with a spring shock-absorber, and in the upper and lower parts of the second body of the electric hammer there are sucking and discharge fans respectively. The frequency-controlled supply and control system can be connected to a storage battery.
 Method for hollow pile submersion (versions) / 2386751
Invention is related to construction, in particular to pile foundations. Method for submersion of reinforced concrete hollow pile under action of static or dynamic load developed by installation with loader includes installation of soil piercing device (SPD) into pile cavity, fixation of its position relative to pile; installation of pile with fixed SPD into vertical position relative to earth surface by equipment for pile submersion; submersion of pile into soil till specified elevation, under action of static, dynamic or combined load at pile and facility of soil piercing simultaneously; removal of soil piercing facility from pile cavity; filling of cavity with concrete mortar; at the same time SPD is installed in pile cavity, comprising stem and sharpened tip in the form of cone, or pyramid, or wedge, in which distance from upper end of rod to base of tip is longer than pile length; base of tip is set at the distance from lower end of pile, defined from the following ratio:
 Method for erection of foundation, foundation and pile / 2386752
Group of inventions is related to construction and may be used to erect foundations of industrial and civil buildings with high vertical and horizontal loads under complex engineering and geological conditions, including undermined territories. In process of pile foundation erection piles are installed serially. At least one of piles is driven towards and at the angle to the previously arranged pile with provision of mutual support. Piles may be curvilinear. In this case they are submerged in soil with convexity to the side of base soil with the possibility to form arches in soil, which are inserted one into another. Piles may be provided with widening, then they are driven till mutual support in the area of widening. Widening may be arranged with holes or in the form of forks with teeth, also equipped with links with the possibility of their partial rumpling or damaging. Widening teeth may be joined by rope, besides rope is fixed on outer teeth and is pulled through holes with rollers in central teeth.
 Impact device to submerge rods into soil / 2443827
Body of an impact device is rigidly fixed on a front external end facing the soil surface in a hollow double-sided stem having a piston in a hydraulic cylinder arranged in the plane perpendicular to the soil surface and fixed as capable of angular rotation by ±90° in the carriage. This carriage is progressively movable in vertical guides of the frame parallel to the specified plane and rigidly fixed in the rear part of a hydroficated basic machine. At the same time the submersible element enters into the soil via an end hole in the rear external end of the stem and is substantially permanently placed in its axial plane. Application of the invention will make it possible to ensure complete mechanisation of the soil slopes reinforcement process by driving flexible rod elements into them.
 Pile driver / 2444591
Pile driver comprises an upper part of the pile driver guides arranged on the front part of the basic machine and supported with a hydraulic cylinder of pile driver guides lifting at the back, and a lower part of the pile driver guides supported with a facility of control in back and forth direction, a facility of control in back and forth direction comprising a bracket of the pile driver guides, having a rotary base attached as capable of rotation to the basic machine, and a rotary end attached as capable of rotation to the lower part of the pile drive guides, and a facility to actuate the bracket to rotate the bracket of the pile drive guides relative to the rotary base. The first arc outlined with the rotary end, when the bracket of the pile driver guides rotates for control of the lower part of the pile driver guides in back and forth direction. The second arc outlined with a connection part between the pile drive guides and the top of the hydraulic cylinder for lifting of the pile drive guides, which moves, when the lower part of the pile drive guides moves back and forth along the first arc, besides, both are convex to upwards. The radius of the first arc is less than the radius of the second arc. Each of the end of the first arc and the end of the second arc, when the lower part of the pile drive guides is installed in the farthest back position, is in the highest position, and the direct line passing through both end points of the second arc, is parallel to the tangent in the central part of the first arc.
Device for driving casing strings / 2245964
Device is suspended on flexible support of balancing mechanism and includes striker bar with tail piece, head piece of casing pipes, spring and locking element placed on tail piece. Tail piece of striker bar is made with stopping clamp and is provided with support washer. Locking element is made with possible displacement along tail piece axis. Spring is mounted between support washer and locking element.
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FIELD: mining industry. SUBSTANCE: device is suspended on flexible support of balancing mechanism and includes striker bar with tail piece, head piece of casing pipes, spring and locking element placed on tail piece. Tail piece of striker bar is made with stopping clamp and is provided with support washer. Locking element is made with possible displacement along tail piece axis. Spring is mounted between support washer and locking element. EFFECT: higher efficiency. 2 dwg
The invention relates to mining, and in particular to a device for immersion casing as in the studied wells and drilling casing-running column in the exploration for rare metals and building materials. A device for driving casing, including suspended on a rope snatch the frame of the shock rod through the cable lock/ and headgear worn by threads to the upper end of the casing /see F.A. Shamshev and other "Technology and engineering exploration drilling", M., Nedra, 1983, page 500, Fig. 9.17/. The disadvantage of this technical solution is low impact energy is proportional to the mass of the shock rod and the square of its velocity at the moment of collision with the headgear. When the lifting height of the shock rod, 0.5-0.8 m, the rod does not have time to gain enough speed drop at the moment of collision with the headgear. It is also known a device for driving casing, suspended on a flexible suspension assemblies percussion mechanism and including a shock rod shank, the cap casing and a spring installed between the cap and the locking element or nut to the nut/, located in the lower part of the shank (see USSR author's certificate No. 446624, E 21 In 19/00, 1973/. The specified technical solution is the closest to the proposed technical the essence and the achieved result and the accepted level of technology /prototype/. The disadvantage of the prototype is that at the beginning of the casing wells /first 8-10 m/, when the weight of the casing string and the grip is comparable in magnitude with weight driven projectile casing is extracted from the ground when lifting the drill, since the latter through the spring and the cap is connected with the casing. In addition, the prototype of the working stroke of the spring must be equal to the height of rise of the knock-shell /0,5-0,8 m/, hence, the length of the spring in a free state should be about two meters, which increases the dimensions of the shell height and causes inconvenience in operation. The technical result of the invention is to enable operation of the device at landing the casing in the upper intervals of the well and reducing its dimensions. The technical result is achieved in that the device for driving casing, including the shock rod shank, the cap casing, a spring and a locking element located in the lower part of the stem, according to the invention the shank of the shock rod is made with thrust collar and provided with a bearing washer and the locking element is arranged to move along the axis of the shank, and a spring installed between the support washer and the locking element. Analysis of the proposed device shows that VN is V put signs allow you to work as the initial part of the working characteristics of the spring, and on any other site, i.e. depending on the depth of the column to change the amount of force with which the spring acts on the shock rod at the point of discharge into the headgear. The invention is illustrated in the drawings, which depict: - figure 1 - General view of the proposed device /on the left side of the projection - in the initial stage of the casing of the well, on the right is in the process of the casing of the middle and lower intervals of the wells/; - figure 2 - the working characteristic of the spring device. Device for driving casing includes a shock rod 1, with the tool 2 /taper thread for connection via cable lock 3 to the rope 4 winches /not shown/ drilling machine having the balancer free reset. In the lower part of the shock rod, made in the form of a shaft 5, has a threaded section 6 with a nut 7 and a nut 8, and the thrust washer 9 and the locking element 10, between which there is a spring 11. The apparatus also includes a cap 12 of the casing 13, and the outer diameter of the washer 9 exceeds the internal diameter of the cap 12. Structurally, the device is designed so that the value of 14 the rise of the shock rod exceeds the height from the underside of the cap 12 to the upper plane of the thrust washers 9 size 15. Does the proposed device for zabavlyavshih pipes as follows. In the beginning of the process casing of the well or drilling a well casing spring 11 mounted on the shank 5 in the free state or presses on the minimum value. When lifting the shock rod 1 in the upper position, the spring 11 is compressed by the value of 15, it works on the initial part of its features /see figure 2/, where her efforts are not enough to lift from the well casing 13. In the further process of the casing of the well when the weight of the casing and its adhesion to the soil increases, producing an increase of the impact energy, for which a building by turning the nut 7 and the nuts 8 compresses the spring 11 on the value 16 /see right projection 1/. Spring 11 in this case will have previous working stroke, is equal to the value of 15, but its force when resetting the shock rod to the cap casing increases accordingly angle characteristics of springs in the coordinate axes of its efforts, and precipitation. If necessary, a preliminary compression of the spring increases to its maximum working load at the time of reset of the shock rod to the helmet casing. The degree of spring preload device under other equal conditions will be determined by the design of casing /her gladnetcollect/physical-mechanical properties of soil, etc. and in each spiral is " a set empirically. The advantage of the proposed device for driving casing compared to the prototype is the possibility of its application since the start of casing, it is possible to vary the magnitude of the impact energy depending on the geological section, as well as reducing the overall dimensions of the device by installing the springs with stiffer and less in height. Device for driving casing, suspended on a flexible suspension balancer mechanism and including a shock rod shank, the cap casing, spring and placed on the shank of the locking element, characterized in that the shank of the shock rod is made with thrust collar and provided with a bearing washer and the locking element is arranged to move along the axis of the shank, and a spring installed between the support washer and the locking element.
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