Tunnelling header unit (geovehicle)

FIELD: mining.

SUBSTANCE: tunnelling header unit comprises serially arranged head and tail sections. The head section comprises a helical blade on the external surface, an actuator and an auger mechanism for broken mass discharge, besides, a rotation mechanism is also located in the head section. The tail section comprises longitudinal support elements, aligned along the longitudinal axis of the unit, a drive of the rotation mechanism. The sections are connected to each other with the possibility of the head section rotation relatively to its longitudinal axis. The rotation mechanism is arranged in the form of a hollow shaft, where two wave generators are installed, being arranged with eccentricity relative to the axis of the driving shaft, a geared crown arranged on the inner surface of the head section, a separator connected to the end section and intermediate solids of revolution. Number of teeth in the geared crown is more than the number of intermediate solids of revolution by one. The sections have a rigid kinematic link in the axial direction, which consists of two touching circular ledges, one ledge is located on the separator, the second ledge is arranged on the inner surface of the head section. The driving shaft is installed in rolling bearings, with one bearing installed in the head section, and the other one - in the end section. The driving shaft at the side of the stripped area has a driving gear arranged with the possibility of rotation from motors via a motor gear, and the motors are fixed at the inner surface of the end section.

EFFECT: improved reliability of the unit operation, loading capacity of the unit drive and efficiency of tunnelling, expanded area of the unit application.

5 dwg

 

The invention relates to the mining industry, namely the tunneling shield complexes and aggregates. Can be used for carrying out excavations, tunnels, sewers and waterworks.

Known tunneling shield unit containing three cylindrical sections connected in series (as the USSR N1229354, CL E21D 9/06, 1984). Sections are connected by jacks and the front of the unit is the Executive body. The head section is provided with a spiral blade, and to prevent rotation of the other sections they are equipped with retractable stabilizers. For mounting the developing unit equipped with repuclican. A common feature of the known and the proposed tunneling shield units is the principle, namely, that the destruction of the array occurs when the helical movement of the lead section, which is built Executive body. The disadvantages of the known Assembly is the joining of sections carried out on penile principle and the force of sliding friction arising in this site, worsen the energy characteristics; the complexity of the hydraulic drive system of rotation; the entanglement of high pressure hoses, supply the working fluid to the cylinders; a possible misalignment of the sections relative to each other, which leads to deterioration of the services is by operation of hydraulic cylinders; the cyclical operation of the cylinders and unproductive loss of time on the retraction rod during idling; trunnion mount cylinders to sections experiencing heavy loads during rotation of the section, which can lead to their failure. In addition, the unit is quite bulky.

Partially the aforementioned shortcomings in the design of the tunnel panel unit taken as the analogue of (A.S. USSR N 1647144, CL E21D 9/06, 1991). The unit contains a sectional cylindrical shell of kinematically associated head and tail sections with a screw blade (propeller) on the outer surface of the head section and the longitudinal support elements on the outer surface of the tail section.

Tunneling shield Assembly (GeoHot) consists of a cylindrical shell composed of annular sections. The first, counting from the bottom, is provided on the outer surface of the screw blade, and the second is on the outer surface of the supporting elements made in the form of plates, oriented along the longitudinal axis of the Assembly. Sections connected with each other with the possibility of relative rotation and in the axial direction between the sections with a rigid kinematic relationship, composed of two rows of rollers mounted for rotation around their own axes. The rollers wsimages who are with the side surfaces of the frames, equipped with crowns of coils, crowns differ from one another by the number of coils. In engagement with the crowns are blocks of satellite gears that are installed around the perimeter of the ring with the possibility of rotation around their longitudinal axes. The ring from out space equipped with a crown of coils, in mesh with the output gear of the motor, permanently installed on the inner surface of the section. From a face ring is rigidly connected with loading rotor by means of radially arranged strips. The rotor is mounted for rotation relative to both partitions on the bushings, which is rigidly fixed to the sections respectively. On the inner surface of the rotor, the perimeter is fixed loading of the blade. Within the rotor is screw with its breathtaking transporting tray, and screw from the side of the face is rigidly connected to the rotor, and transporting the tray with its flange attached to the end of the sleeve. The end section from a face equipped Executive body.

The disadvantages of the known heading of the unit are: small load capacity zavoznoy transmission, by means of which rotation is transmitted to the head section; a significant load on the rollers during movement can lead to large bending loads on the axis of the rollers that m which may lead to misalignment of their axes and jamming.

The objective of the invention is to improve the reliability of operation of the unit, increasing the load capacity of the actuator unit, the efficiency of penetration by integrating in time the processes of destruction slaughter, transportation detached rock mass from the bottom, as well as the expansion of the scope of the unit.

Proposed tunneling shield Assembly (GeoHot), contains the head section of the screw blade (propeller) on the outer surface, the Executive body and the unloading mechanism repulsed mass in the form of a screw portobanco body, the tail section with the longitudinal support elements, which are oriented along the longitudinal axis of the unit, section, unit, connected with the possibility of turning the head section relative to its longitudinal axis, and the mechanism of rotation of the head section. The rotation mechanism consists of a hollow drive shaft, on which are located two wave generator made with eccentricity relative to the axis of the drive shaft, ring gear, made on the inner surface of the head section, a separator connected to the end section and the intermediate rolling bodies - balls. The number of teeth of the ring gear is greater by one than the number of intermediate rolling bodies. Section in the axial direction have a rigid kinematic relationship consisting of two apricarius the Xia annular projections, one projection is located on the separator, the second protrusion is located on the inner surface of the head section, a drive shaft mounted on rolling bearings, one bearing mounted in the head section and the other in the tail section, the drive shaft from goaf has a drive gear, the drive gear is made to rotate from the engine through the gear of the engine, the engine still installed on the inner surface of the end section.

The new design of the unit is the mechanism of rotation of the head section, which applied the principle of the wave gear with intermediate rolling bodies. The rotation mechanism is driven by motors mounted on the casing end section. The rotation mechanism is mounted on rolling bearings, one bearing mounted in the head section, and the other in the tail section.

Use the drive principle of the planetary gear with intermediate rolling bodies will allow you to get more torque compared to zavoznoy transmission, and a high gear ratio. Replacement rollers will increase the rigidity of the connection head and end of the section that will provide a more stable movement of the head section in a given direction. In the design of the mechanism of rotation with high speed rotating tolkova with eccentric generators, which has a relatively small mass, eccentricity offset generators is opposite relative to the axis of the drive shaft, so the total moment of inertia generators is balanced, allowing quick start-up and braking of the drive, and dynamic reversal of rotation.

The invention is illustrated by drawings, where figure 1 shows a General view of the tunneling shield Assembly, figure 2 is a section along a-a in figure 3 - section B-B figure 4 - section B-B, figure 5 - section G-G

Tunneling shield Assembly (GeoHot) contains consistently established head 1 and tail 2 cylindrical section. On the outer surface of the head section fixed helical vane (mover) 3, and a tail section attached to the longitudinal support elements 4. Section interconnected with the possibility of turning the head section 1 around its longitudinal axis. The mechanism of rotation of the head section consists of a hollow drive shaft 5, on which are located two wave generator 6 and 7, made with eccentricity e relative to the axis of the drive shaft, ring gear 8 (Fig 3), was performed on the inner surface of the head section 1, of the separator 9 is connected to the end section 2 and the intermediate rolling bodies - balls 10 (figure 4). The number of teeth of the ring gear is greater by one than the number p is omegatech phone Sections 1 and 2 in the axial direction have a rigid kinematic link, consisting of two adjoining annular projections 11 and 12, the protrusion 11 is located on the separator, the projection 12 is located on the inner surface of the head section 1. The ledge 12 during the rotation of the head section along with it moving forward, in contact with the ledge 11, together with the projection 11 moves the separator 9 and the end section 2. The drive shaft 5 is mounted on rolling bearings 13, and one bearing mounted in the head section 1 and the other at the end of section 2. The shaft 5 by a goaf has a drive gear 14. The drive gear 14 is rotated from the engine 15 through the gear motor 16. Engines mounted on the inner surface of the section 2. Protobody body shield tunneling unit (geocode) consists of a rotor 17, on the inner surface of which, on its perimeter, are loading vanes 21 (2), and screw conveyor 18, the diaphragm 24. The screw conveyor 18 is covered by a transporting tray 22. Transporting the tray 22 is fixed in the sleeve 20. Aperture 24 is connected transporting the tray 22. The rotor 17 is connected to the hollow shaft 5, which receives the rotation. The rotor 17 is rotatably relative to the sections of the tunnel unit (geocode). End of session 1 from a face feature will perform is determined as being the body 23 of the knife type.

The unit works in the following way. The rotation from the engine 15 through the gear motor 16 is transmitted to the drive shaft 5, then two wave generator 6 and 7. The axis of wave generators 6 and 7 during the rotation perform an orbital motion in a circle of radius e and move the intermediate rolling elements 10 (figure 4), located in the grooves of the separator 9, in a strictly radial direction. Intermediate rolling elements 10, interacting with internal profile of the surface of the ring gear 8, the axis of which point to 0, and guides separator, deploy them relative to each other, rotating the head section 1 of the unit. At this output level the transmission is a gear 8 (Fig 3), which is located on the inner surface of the head section, and a stationary separator 9 is connected with the fixed end section 2. Due to the fact that the number of teeth of the crown is greater by one than the number of intermediate rolling bodies, should occur relative rotation of the sections 1 and 2, but since section 2 is fixed from rotation of the support elements 4, which interacts with the rock begins to rotate in section 1. When this screw blade 3 section 1, located in the screw channel, formed by the Executive body 23 in the array begins to interact with the array and reports section 1 translational movement in the axial direction is AI is filing Executive body 23 on the slaughter and destruction of the face. In addition, section 1 entrain section 2 due to the interaction of the projections 11 and 12. To prevent sifting of the rock mass in the annular gap of the butt section with a minimum clearance. Remove from slaughter smitten rock mass is protobalanus body. The rotor 17 is installed loading vanes 21 (2), the rotor 17 is rotationally driven from the drive shaft 5. Smitten the rock mass is captured loading blades 21 and enters the collecting box transporting tray 22, which is moved by means of a screw portobanco body 18 rotating with the rotor 17.

The goal of improving reliability and load capacity is solved by the introduction of wave transmission, position 8, 9, 10 in the figures 3, 4. Task efficiency is solved by integrating in time the processes of destruction slaughter, transportation detached rock mass and movement of the unit on the bottom. The task of expanding the field of application is solved due to the possible use of tunneling panel Assembly for laying of pipelines, construction of reservoirs.

Tunneling shield Assembly (GeoHot), contains the head section of the screw blade (propeller) on the outer surface, the Executive'or is an and unloading mechanism repulsed mass in the form of a screw portobanco body, the tail section with the longitudinal support elements, which are oriented along the longitudinal axis of the unit, section, unit, connected with the possibility of turning the head section relative to its longitudinal axis, and the mechanism of rotation of the head section, wherein the rotation mechanism is made in the form of a hollow shaft, on which are located two wave generator made with eccentricity relative to the axis of the drive shaft, ring gear, made on the inner surface of the head section, a separator connected to the end section and the intermediate rolling bodies, the number of teeth of the ring gear is greater by one than the number of intermediate rolling bodies, sections in the axial direction have a rigid kinematic link, consisting of two adjoining annular projections, one projection is located on the separator, the second protrusion is located on the inner surface of the head section, a drive shaft mounted on rolling bearings, one bearing mounted in the head section and the other in the tail section, the drive shaft from goaf has a drive gear made with the possibility of rotation from the engine through the gear of the engine, and the engine still installed on the inner surface of the end section.



 

Same patents:

FIELD: mining.

SUBSTANCE: birotating tunnel shield unit consists of three sections. Two front sections, starting from bottomhole, are mounted on diaphragm by means of ball runnings with toothed collars of conical gear, engaged at diametral opposite sides with master conical gears of section rotation drives arranged on diaphragm, which is mounted at front end of beam with drive by means of Hooke joint and hydraulic cylinders with stems, fixed on beam and diaphragm by means of journals. Beam with drive is mounted in guides of back section, at the same time auger with a separate drive is mounted inside beam. On external surface of back section there are elements of conrotation arranged in the form of plates aligned along longitudinal axis of section, at the same time on external surfaces of front rotary sections there are helical blades arranged with opposite direction of winding. Besides, small actuating elements with individual drives and sleeves with augers are mounted upstream each blade and element of conrotation. Hollow beam is mounted in the centre of diaphragm, inside which there is an auger with drive fixed, at the same time outside - at bottomhole of beam there is a socket and loading rotor with drive mounted, connected to the main actuating element.

EFFECT: unloading of back section from torque and from longitudinal braking force.

6 dwg

FIELD: mining.

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FIELD: mining.

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Tunneling method // 2259479

FIELD: underground structure building, particularly for forming underground tunnels and collectors.

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EFFECT: prevention of ground and object deformation in tunnel boring machine movement area, increased backfill layer elasticity and tunnel lining impermeability.

4 cl, 6 dwg

FIELD: mining industry.

SUBSTANCE: device has frontal, two side and two conical working tools with rock-destroying tools on outer surfaces, drives, rigidly connected to axes of each working tool, and displacement mechanism, connected to guides, placed at angle relatively to each other, which angle is determined from mathematical expression. Frontal and each of side working tools are made in form of two rotation bodies, having arced forming lines with given value of convexity. Axes of frontal working tool and axes of two conical working tools are rigidly connected to guides, axes of upper rotation body of frontal working tool being displaced relatively to axis of its lower rotation body towards pit-face, and axes of each pair of side working tools are jointly connected to each other and to guides. Frontal working tool may be made in form of several modules.

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The invention relates to a shield tunnel construction and can be used mainly for conducting small diameter tunnels

The invention relates to the mining industry and can be used with sinking and redemption mining

FIELD: mining industry.

SUBSTANCE: device has frontal, two side and two conical working tools with rock-destroying tools on outer surfaces, drives, rigidly connected to axes of each working tool, and displacement mechanism, connected to guides, placed at angle relatively to each other, which angle is determined from mathematical expression. Frontal and each of side working tools are made in form of two rotation bodies, having arced forming lines with given value of convexity. Axes of frontal working tool and axes of two conical working tools are rigidly connected to guides, axes of upper rotation body of frontal working tool being displaced relatively to axis of its lower rotation body towards pit-face, and axes of each pair of side working tools are jointly connected to each other and to guides. Frontal working tool may be made in form of several modules.

EFFECT: higher efficiency.

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Tunneling method // 2259479

FIELD: underground structure building, particularly for forming underground tunnels and collectors.

SUBSTANCE: method involves excavating ground with cutting tool; regulating kentledge pressure in rotor chamber and backfilling annular tubing space. Kentledge pressure is automatically adjusting with that of enclosing ground exerting pressure on shield case by means of membranes. The membranes are installed in shield case and are permanently subjected to actual enclosing ground pressure. Backfilling operation is performed through end part of shield case immediately after shield case movement.

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SUBSTANCE: method involves creating conditions favorable for chemical reaction between chemical element oxides basically constituting rock and graphite for rock fusion. For this rock is heated up to high temperature at face by thermal electric arc energy transmission through metal front tunneling machine wall. Electric arc is generated between electrodes inside discharge chambers arranged on inner surface of front tunneling machine wall. Electric current is supplied to electrodes via graphite mass moving through electrically-insulated pipes. Graphite is forced via electrodes and introduced into face through nozzles connected to front tunneling machine wall.

EFFECT: possibility to regulate electric current power and graphite mass to select necessary excavation regimes.

FIELD: mining.

SUBSTANCE: method of boring hard rock by means of tunnel boring machine equipped with disks of hardened steel projecting from cutting head consists in supply of foamed water liquid to cutting head; this composition corresponds to surface active substance -SAS and lubricating material - polyethylene oxide with molecular wt from 4.500.000 to 8.000.000. The said ingredients are measured separately in a water form, are added into water and are transformed into a foam using anionic or nonionic SAS; the said composition is obtained by dilution of concentrate with water on site.

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FIELD: mining.

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EFFECT: higher reliability of mine tunnel maintenance in operational period.

3 dwg

FIELD: mining.

SUBSTANCE: invention is related to mining industry, in particular to shield driving of tunnels, and may be used in shield driving of through collector tunnels with concrete lining. Method for shield driving of tunnel consists in erection of shield chambers by method of "slurry-type wall" for assembly and turns of shield on track of arranged tunnel. Walls of shield chambers, at least those, where holes are provided for passage of shield, are made of concrete, having compression strength of not more than 11.5-14.5 MPa, are reinforced with glass-plastic reinforcement from rods with diametre from 4 to 10 mm with ultimate strength in case of cutting across fibres of at least 165 MPa and developed by working element of shield. Formation of concrete lining, in process of collector tunnel driving, at least in joint of shield chambers walls and on length of tunnel from two to ten of its diametres, is carried out by at least two concentric layers, between which additional internal hydraulic insulation layer is arranged, and application of hydraulic insulation coating onto inner surface of concrete lining is carried out after complete drying of surface layer of tunnel walls.

EFFECT: improved reliability of tunnel arrangement and its hydraulic insulation, higher speed of underground communications construction.

2 cl

FIELD: mining.

SUBSTANCE: birotating tunnel shield unit consists of three sections. Two front sections, starting from bottomhole, are mounted on diaphragm by means of ball runnings with toothed collars of conical gear, engaged at diametral opposite sides with master conical gears of section rotation drives arranged on diaphragm, which is mounted at front end of beam with drive by means of Hooke joint and hydraulic cylinders with stems, fixed on beam and diaphragm by means of journals. Beam with drive is mounted in guides of back section, at the same time auger with a separate drive is mounted inside beam. On external surface of back section there are elements of conrotation arranged in the form of plates aligned along longitudinal axis of section, at the same time on external surfaces of front rotary sections there are helical blades arranged with opposite direction of winding. Besides, small actuating elements with individual drives and sleeves with augers are mounted upstream each blade and element of conrotation. Hollow beam is mounted in the centre of diaphragm, inside which there is an auger with drive fixed, at the same time outside - at bottomhole of beam there is a socket and loading rotor with drive mounted, connected to the main actuating element.

EFFECT: unloading of back section from torque and from longitudinal braking force.

6 dwg

FIELD: mining.

SUBSTANCE: tunnelling header unit comprises serially arranged head and tail sections. The head section comprises a helical blade on the external surface, an actuator and an auger mechanism for broken mass discharge, besides, a rotation mechanism is also located in the head section. The tail section comprises longitudinal support elements, aligned along the longitudinal axis of the unit, a drive of the rotation mechanism. The sections are connected to each other with the possibility of the head section rotation relatively to its longitudinal axis. The rotation mechanism is arranged in the form of a hollow shaft, where two wave generators are installed, being arranged with eccentricity relative to the axis of the driving shaft, a geared crown arranged on the inner surface of the head section, a separator connected to the end section and intermediate solids of revolution. Number of teeth in the geared crown is more than the number of intermediate solids of revolution by one. The sections have a rigid kinematic link in the axial direction, which consists of two touching circular ledges, one ledge is located on the separator, the second ledge is arranged on the inner surface of the head section. The driving shaft is installed in rolling bearings, with one bearing installed in the head section, and the other one - in the end section. The driving shaft at the side of the stripped area has a driving gear arranged with the possibility of rotation from motors via a motor gear, and the motors are fixed at the inner surface of the end section.

EFFECT: improved reliability of the unit operation, loading capacity of the unit drive and efficiency of tunnelling, expanded area of the unit application.

5 dwg

FIELD: mining.

SUBSTANCE: tunnelling combine (90) for horizontal mines comprises a rotary cutting head (93), where there are many cutting assemblies (10) installed as capable of rotation. Multiple units of instruments (50) are connected with a rotary cutting head, at the same time each unit of instruments comprises a distal end in contact with the appropriate cutting assembly. Units of instruments comprise multiple sensors, including an accelerometer (32), a magnetometer (33) and a temperature sensor (34) to monitor the appropriate cutting assembly. Sensors are installed at the remote end of units of instruments pressed for contact with a cutting assembly. Units of instruments comprise a wireless transceiver and are connected to each other into a circuit of data transfer or a peer-to-peer network. A source (176) of power supply, such as a battery pack, is provided for each unit of instruments. Sensor data may be used to control operation of a tunnelling combine for horizontal mines and/or for monitoring condition of cutting assemblies.

EFFECT: enhancing effectiveness and reliability of tunnelling operation.

27 cl, 7 dwg

Duplex geovehicle // 2469192

FIELD: mining.

SUBSTANCE: duplex geovehicle consists of three sections. Two front sections are mounted on load-carrying beams with drives by means of ball races with toothed rims of bevel gear. Section rotation drives are located on diaphragms that are mounted on front ends of load-carrying beams with drives. Each load-carrying beam with a drive is mounted in the guides of rear section with possibility of its retraction. A screw with a separate drive is mounted inside the load-carrying beam. On external surfaces of front rotating sections there located are screw blades with opposite winding direction. Before each blade there mounted are small actuating elements with individual drives and sleeves with screws. In the centre of diaphragms there mounted are hollow beams inside which screws with drives are mounted Flared ends and loading rotors with drives are mounted on the front side of face ends of hollow beams. Drives and actuating elements of rear section are located on its front wall. Outside the front wall: at the top and at the bottom - horizontally, and in the centre - vertically. Drag conveyor, tray and screw with a drive are located behind the front wall inside rear section.

EFFECT: increasing the strength of out-contour layer of rock mass.

5 dwg

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