Device for battering rod element in soil

FIELD: mining.

SUBSTANCE: device comprises a main impact assembly mounted in the hole of the transition element, and at least one additional impact assembly mounted on the axis of the main impact assembly in an additional opening in the transition element, and connected to this transition element.

EFFECT: increased speed of battering the rod element in the soil by increasing the frequency of strokes and occurrence of effect of soil liquefaction.

7 cl, 6 dwg

 

The technical solution relates to mining and construction technology and can be used for driving the vertical steel pipes and trenchless pipe for clogging of pipes and casings in the ground.

A device for immersion pipe into the ground by hammering copyright certificate №1622532, CL E02F 5/18, publ. in BI No. 3 (1991), containing the impact site, enshrined in the front of the sleeve for engagement with the end score of the pipe, on which a radial protrusions and placed elastic elements circumferentially between the radial protrusions, and a device for regulating the stiffness of the elastic element. Each elastic element is designed as a curved leaf spring that is installed with the possibility of interaction between the Central portion of the inner surface of the pipe, and a device for regulating the stiffness of the elastic element is made in the form located on the outer surface of the sleeve recesses to accommodate the ends of the springs.

A disadvantage of the known device is the low efficiency is due to the low speed driving pipes into the ground under the action of strikes against the end of the pipe shock site, the maximum frequency is limited to its maximum value for each impact site.

The closest analogue for those who practical essence and essential features is a device for the trenchless laying of the pipeline in the ground by the RF patent №2101421, CL E02F 5/18, publ. in BI No. 1 for 1998, including the impact site and the sleeve and provided with a cable winch, and a cable attached to a shock site, and the winch attached thereto, the other end of the cable is mounted on the other side hammered tubes, and the cable is placed in the pipe.

A disadvantage of this device is the low efficiency is due to the low speed driving pipes into the ground under the action of the blows of the impact site through the sleeve on the pipe, the maximum frequency is limited to its maximum value for each impact site. Increasing the frequency of the shock of impact site can be achieved by reducing the cycle time between two adjacent bumps and depends on the length of the stroke of the striker. If the minimal possible length of the stroke of the striker further increase in the frequency of strikes can occur only by increasing the speed of movement of the striker and initial velocity. Initial speed is limited by strength conditions of the colliding parts.

The technical objective of the proposed solutions is to increase the efficiency of the device due to the increase in speed of the driving rod element in the soil by increasing the frequency of the shock and the occurrence of the effect liquefaction of the soil".

The problem is solved in that the device for Zab is of pivotal element in the soil, containing the main impact site, installed in the hole of the transition element according to the technical solution is provided with at least one additional shock site, installed on the axis of the main shock of the node in the additional hole transition element, and is connected to it.

This embodiment of the device provides an increase in the frequency of shock impacts on an end face of a rod element, which is due to the addition of the frequency of the shock, at least any two of shock nodes, each having its specifications. This increases the speed of the driving rod element in the soil. As a result, the efficiency of the device. In addition, increasing the frequency of the shock leads to an additional effect liquefaction of the soil and, as consequence, to decrease resistance to the introduction into the soil of the truss element by reducing friction. This helps to increase the speed of the driving rod element in the soil, thereby increasing the efficiency of the device.

It is advisable to primary and each additional percussion nodes formed with the transitional element of the conical connection. This embodiment of the device provides precise coaxial placement of the at least two impact sites on the transition element is e, stable fastening of the transition element at the end of the truss element and complete transmission of shock pulses through the transition element to the rod element. This will increase the speed of the driving rod element in the soil that will improve work efficiency. In addition, taper joints allow for easy removal of shock nodes with the transition element of technological necessity.

It is advisable to primary and each additional percussion nodes formed with the transitional element of the end contacts. This embodiment of the device will provide full transmission of the shock pulse from each impact site transitional element without loss existing in rigid connection of each of the shock of the sites with the transitional element,the mass of buildings which absorbs some of the shock pulse from another shock site.

It is advisable that the end contacts of the primary and each additional percussion nodes with the transitional element were provided with threaded connections. This embodiment of the device provides not only accurate axial location, at least two drums of nodes in a transitional element, but also eliminates the removal of the main shock of the node with the transition element upon impact additional impact site, and Vice versa. In this case, the next shock pulse on the primary impact site will not be spent on the restoration of his connection with the transitional element, broken by impact pulse from the secondary shock site, and Vice versa.

It is advisable that the end contacts of the primary and each additional percussion nodes with the transitional element were provided with coupling elements secured one ends of the primary and secondary shock nodes, respectively, and other ends respectively to the transition element. In this embodiment of the device the next blow from a primary or secondary impact sites will be aimed at increasing efficiency through better transmission of shock pulses to the core element through tight butt contacts all the shock sites with transitional element. In addition, the weight of the hull of one of the shock site will not be "parasitic" body, absorbing part of the shock pulse from another shock site, and Vice versa.

It is advisable when this device is to provide a ring) with a damping element arranged on the annular ledge performed on the side surface of the transition element. This embodiment of the device will provide a more efficient connection of the transition element with the core element hammered into the ground because the weight of annular weights will balance the force of bestowal each impact site and to prevent reverse motion is a core element of the pound. The damping element located between the annular counterweight and a transitional element, provides constant action of the weight of the counterweight on the transition element and a more effective perception of the strength of these shock sites. In addition, it eliminates the accidental removal of the transitional element with the rod element under impact load.

It is advisable that the end contacts of the primary and each additional percussion nodes with the transitional element were provided with coupling elements secured one ends of the primary and secondary shock nodes, respectively, and other ends respectively to the beam element using cross-section located therein finger. This embodiment of the device not only provides a tight mechanical contact between the transition element and all the shock sites, but constant contact between the transition element and the core element. This contributes to a more complete transfer of the shock pulse from each impact site through a transition element to buried in the ground rod element, which increases the speed of the driving rod element in the soil. As a result, the efficiency of the device. In addition prevents accidental removal of the transitional element truss element p is d effect of shock pulses.

The essence of the technical solution is illustrated by a specific example of the apparatus for driving a pivotal element in the soil and the drawings Fig.1-6. In Fig.1 shows a device for driving a pivotal element in the soil, the General view in longitudinal section, in which it is provided with at least one additional shock site, installed on the axis of the main shock of the node in the additional hole transition element, and forms with it a tapered connection. In Fig.2 - the same device, in which the primary and secondary drums nodes with the transitional element forming face contacts, which are provided with threaded connections. In Fig.3 is an enlarged image of the face of contact, provided the specified screw connection. In Fig.4 - the same device in which one end contacts the principal and each additional percussion nodes with the transition element is provided with coupling elements secured one ends of the primary and secondary shock nodes, respectively, and other ends respectively to the transition element. In Fig.5 shows the same device, which in Fig.4, a General view in longitudinal section, in which it is provided with a ring) with a damping element arranged on the annular ledge performed on the side surface of the transition element. On Phi is .6 shows the same device, which end contacts the principal and each additional percussion nodes with the transition element is provided with coupling elements secured one ends of the primary and secondary shock nodes, respectively, and other ends respectively to the beam element using cross-section located therein finger.

Device for driving a core element 1 (Fig.1) in soil (hereinafter - the device contains the main impact site 2 mounted in the hole of the transition element 3, and at least one additional shock site 4, mounted on the axis of the main shock of node 2 in the additional hole transition element 3. The main 2 and 4 percussion nodes with the transition element 3 can form a conical connection (Fig.1).

In the device main 2 and 4 percussion nodes with the transition element 3 can form a butt contacts secured their screw (Fig.2, 3) connections or clamping elements 5-8 (Fig.4-6), which is provided with the device. The clamping elements 5-8 fixed some tips on mainly 2 and 4 percussion nodes, respectively, and other ends respectively to the transition element 3. Thus the device can be provided with an annular counterweight 9 (Fig.5) with the damping element 10 arranged on the annular ledge performed on the side surface of the transition element 3. To ensure these end contacts the clamping elements 5-8, the device can be mounted by one end on the main 2 and 4 percussion nodes, respectively, and other ends to the truss member, respectively, for example, using cross-section located therein finger 11 (Fig.6).

The device operates as follows. The main impact site 2 through the cone (Fig.1) or threaded (Fig.2, 3) connection with end contact sends shock impulses to the transition element 3, which transmits the shock impulses rod member 1 with its frequency of strikes. Under the action of shock pulses rod element 1 is immersed in the soil. Simultaneously, additional percussion node 4 through these tapered or threaded connection with the end contact conveys his shock impulses to the transition element 3 with its frequency. Under the action of the shock pulses from the additional impact of node 4 rod element 1 is also immersed in the soil. The frequency of the main shock 2 and 4 percussion nodes may be different. The overall frequency of exposure to a truss element 1 through the transition element 3 is the sum of the frequencies of the primary 2 and 4 drum units. This provides an increase in speed of the driving rod element in the soil. The result is increasing is effektivnosti operation. The impact of the shock pulses with high frequency leads to "soil liquefaction", to decrease the resistance to implementation, to increase the speed of the driving rod element in the soil, thereby increasing the efficiency of the device.

To ensure the end of the main contacts 2 and each additional 4 shock sites with the transition element 3 can be applied to threaded connections, which provide not only accurate coaxial placement of the at least two impact sites on the transition element 3, but also eliminates the removal of the main shock 2 node with a transition element 3 at impact 4 impact of node and Vice versa.

To ensure the end of the main contacts 2 and each additional 4 shock sites with the transition element 3 can be applied to the clamping elements 5-8 (Fig.4), which ensure reliable transmission of the shock pulse from the primary 2 and 4 percussion nodes transitional element 3. The mass of the additional impact of node 4 does not perceive shock pulse from the main impact site 2 and Vice versa. The whole shock pulse from both the shock of the nodes 2, 4 is transmitted through the connecting rod element 3 element 1.

The weight of the annular counterweight 9, located on the annular ledge of the transition element 3, compensates for the recoil forces from the core 2 and the additional is part 4 of shock nodes (Fig.5). The damping element 10 located between the annular counterweight 9 and the annular protrusion made on the side surface of the transition element 3, isolates the annular counterweight 9 from the effects of shock loads and provides a constant force contact between the annular counterweight 9 and transition element 3. This prevents reverse movement of the rod element 1 from the soil under the action of the forces of bestowal core 2 and each additional 4 shock sites. In addition, it eliminates accidental removal of the transition element 3 with the rod element 1 which may occur under the impact.

The fastening of the clamping elements 5-8 one ends respectively on the primary 2 and 4 shock sites, and other ends respectively truss member 1 (as shown in Fig.6) not only prevents accidental removal of the transition element 3 with the rod element 1, but also provides complete transmission of shock pulses from both the shock of the nodes 2, 4 through the transition element 3 rod item 1.

1. Device for driving a pivotal element in the soil containing the main impact site, installed in the hole of the transition element, characterized in that it is provided with at least one additional shock site, installed on the axis of the main shock of the node to add to enom hole transition element and connected with this transitional element.

2. The device under item 1, characterized in that the main and each additional percussion nodes form a transition element of the conical connection.

3. The device under item 1, characterized in that the main and each additional percussion nodes form a transition element butt contacts.

4. The device according to p. 3, characterized in that the end contacts of the primary and each additional percussion nodes with the transitional element provided with threaded connections.

5. The device according to p. 3, characterized in that the end contacts of the primary and each additional percussion nodes with the transition element is provided with coupling elements secured one ends of the primary and secondary shock nodes, respectively, and other ends respectively to the transition element.

6. The device under item 5, characterized in that it is provided with a ring) with a damping element arranged on the annular ledge performed on the side surface of the transition element.

7. The device according to p. 3, characterized in that the end contacts of the primary and each additional percussion nodes with the transition element is provided with coupling elements secured one ends of the primary and secondary shock nodes, respectively, and other ends respectively styrenebutadiene using cross-section located therein finger.



 

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FIELD: machine building.

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Impact device // 2443863

FIELD: mining.

SUBSTANCE: in the impact device a distribution valve comprises a body with a three-staged sleeve that moves in it, the first step of which, least in diameter, is arranged at one end of the sleeve, is permanently placed in an insulated cavity, communicated with a discharge line, and the third stage, largest in diameter, arranged at the opposite end of the sleeve, is coupled with the inner side surface of the case, which near the end of the specified stage has a circular bore, communicated with the discharge line, and is equipped with a circular ledge for periodic contact with a sealing belt at the end of the third stage. The inner cavity of the sleeve that is open at the side of the third stage end by means of radial holes in the wall and the circular bore at the external side surface of the second stage periodically communicates with the circular bore inside the valve body connected to the drain line, and using holes in the wall of the first stage it continuously communicates with the cavity formed by the inner bore of the body, the external side surface of first stage and the end surface of the second stage. In the valve body there is a circular bore, which forms a control cavity together with the external surface of the third stage and the circular ledge of the second stage, and by means of a check valve and a pilot slide valve it communicates with the upper coaxial recess in the chamber of the device travel at one position, and with the drain line - at the other position of the specified slide valve.

EFFECT: higher efficiency of the device operation and simplified design.

3 cl, 1 dwg

FIELD: construction.

SUBSTANCE: invention comprises a percussion mass, a guide unit of the percussion mass, a unit of percussion mass lifting, comprising a body, in the cavity of which there is a distributing device, an intermediate guide bushing (hereinafter - a bushing) and a working chamber. At the same time the bushing is placed between the body of the lifting unit and the guide unit and has a circular ledge on the inner surface and a limiter of the reverse motion of the percussion mass, and also holes for supply of compressed air into the working chamber. At the same time the latter is formed by an elastic circular valve installed in the circular groove on the external surface of the front part of the percussion mass, the inner surface of the bushing and the end of the stepped rod, which is a stepped tail of the tool. The distributing device is made in the form of an elastic circular cut-off valve installed in the circular groove on the outer surface of the bushing, and the body of the lifting unit has a channel for inlet of compressed air into the lifting unit body cavity and into the working chamber. Both valves are installed with the possibility of interaction with inner surfaces of the bushing and the lifting unit body.

EFFECT: increased efficiency of pneumatic percussion machine operation due to reduced losses of an impact pulse in a stepped rod and availability of the possibility to only produce a single impact by a command with saving of compressed air, and also increased reliability of its operation due to simplified design.

1 dwg

FIELD: construction.

SUBSTANCE: device has a striker at working end, impact mass at the opposite end, guide unit for moving of impact mass up and down, lifting unit. Lifting unit has a frame, at side of which there are holes arranged - inlet and outlet ones to air line. Inside body there are pneumatic chambers - accumulating one and working one, arranged with the possibility for piston under the weight to enter it, and distributing element in the centre of body in the form of stem, where valve is located, which closes exhaust hole between working and accumulating chambers, which is located in central upper part of body. The difference of proposed device is availability of additional damper and control pneumatic chambers, arranged one over the other - damper one is higher, control one is below, and availability of partition in damper chamber, which divides chamber into upper and lower parts. Partition has a vertical channel for passage of stem and connection of damper chamber parts over and under partition. The difference is also availability of two pistons: upper and lower ones, with arrangement of the lower one under damper chamber, upper one - under accumulating chamber.

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1 dwg

FIELD: mining.

SUBSTANCE: proposed device is designed for impact destruction of thick rocks and other materials, pile driving, soil compacting etc. and comprises a casing to house piston-striker, hydro pneumatic accumulator, two-position pressure control slide valve, two cylindrical two-position valves with control pistons. The control piston of every valve represents a two-stage cylindrical rod, the smaller stage end of which faces the valve to form, along with the casing, the first circular chamber constricted by the said smaller stage end and stem and permanently communicated with the pressure line, the second circular chamber constricted by the larger stage end and smaller stage side surface permanently communicated with the drain line and the piston control chamber, alternately communicated with pressure and drain lines, constricted by the casing and the larger stage free end face. The larger stage sidewall features a circular groove arranged so that the isolated chamber, constricted by the said groove and casing, communicates with the second chamber only in case the valve is closed, that is, it is in contact with the casing bore ledge. The hydraulic control slide valve represents a cylindrical plunger moving the casing with one its smooth end, its diametre being equal to that of the plunger, in permanently located in the end face chamber communicated with the rear coaxial groove of the working stroke chamber. The opposite end represents three-stage cylindrical rod with its diametre increasing towards the plunger and its smaller stage is permanently in the said end face chamber communicated with the front coaxial groove of the working stroke chamber. Two other stages make, along with the casing, circular chambers with diametre smaller than and equal to the plunger permanently communicated with the drain and pressure lines.

EFFECT: higher reliability and simple design.

3 cl, 1 dw

Hydroblock hammer // 2347037

FIELD: construction.

SUBSTANCE: invention concerns construction industry and can be used for pile installation during construction of foundation bottoms for civil and industrial structures, bridge, pier and embankment construction, structure protection against undercutting erosion and for pile installation at a selected angle to the ground surface. The hydroblock hammer includes frame 1, handweel 4 with integral master clutch 5 computer-controlled using an instrument detecting permanent deformations of ground, pile sinkage and elastic vibrations of pile, and crank gear, hammer gear and common hydraulic system. The common hydraulic system is made of two independent closed loop hydraulic systems. One system is fitted with a dosing cylinder, chamber of which is connected to accumulator and main hydraulic cylinder 9 with two pistons, one of which is driven by crank gear 8 and the other piston with hammer head 10 located on the piston rod, and with clamping mechanism 11 opened by key rod 12 working in accordance with follower 13. The other system is fitted with hydraulic actuators for pile gripping and sinking, the actuators are installed in sliding piece 18 which comes into engagement with pile 23 through plungers 17 and transfers impact force pulse from the hydroblock hammer to install pile 23.

EFFECT: increased efficiency by using kinetic energy of inertial masses, impact energy control, impact frequency control and simplified maintenance and repairs of the hydroblock hammer.

6 dwg

FIELD: road building, mining, construction engineering.

SUBSTANCE: invention relates to road building and repair machines. Proposed impact plant for driving-in guard posts has base chassis which carries platform body, mast with hydraulic cylinder, slider and hydraulic hammer and mechanism for setting mast in working position. Mast setting mechanism consists of two articulated levers, first being connected by one end through common axle with faceplate mounted on platform body and provided with several fixed positions, and by other end, with second lever on free end of which mast is secured by universal joint. Levers are arranged for control by hydraulic cylinders with floating pistons. One of control hydraulic cylinders is installed between faceplate and first lever, and the other is arranged between levers. Hydraulic hammer is mounted on slider arranged on mast and suspended from wire rope passing over movable sheave connected with rod of hydraulic cylinder secured on mast. Other end of wire rope is connected with mast installed for crosswise and longitudinal tilting by means of control hydraulic cylinders. Hydraulically operated pivot with cutout is installed on lower end of mast. Shackle is freely mounted on lever joint and is connected by one tie-rod with faceplate and by other tie-rod, with universal joint.

EFFECT: enlarged operating capabilities and increased capacity of machine.

7 dwg

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