Drive unit rotor tunneling shield
The invention relates to underground construction and can be used in rotary shields when adjusting the rotation of the rotor. The objective of the invention is to improve the efficiency and reliability of the drive control of the rotor tunneling shield and the expansion of the range of regulation of the speed of rotation of the rotor. Drive unit rotor tunneling shield contains the motors, the node adjusts the rotation speed of the rotor is supplied by a hydraulic pump connected through a valve with hydraulic motors connected to a rotor shaft of the tunneling shield tank working fluid pressure and drain piping. Site adjustment of the rotational speed of the rotor is provided with a block animation containing dispenser, two hydraulic machines, shafts which are rigidly interconnected, and two check valves. The input of the distributor block animation through a discharge pipe connected to the hydraulic pump, one output it through a check valve connected to the distributor node to adjust the speed of rotation of the rotor, and the other output with hydraulic machines. The second check valve connected to the other hydraulic machines, and plum hydraulic machines are connected through a drain pipe to the tank fluid. 2 Il. Known mechanized shield system for tunnel construction, which has a hydraulic drive with hydraulic motors associated with the shaft of the rotor through a gear transmission, and the hydraulic system of each motor is supplied by a hydraulic pump with manual mechanism for regulating the volume of fluid (RF patent 2018677 in class. E 21 D 9/00 from 30.08.1994 year).The disadvantage of this device is that the regulation of the rotor speed manual mechanism reduces the efficiency of operation of the actuator rotor tunneling shield.The closest technical solution of the essential features is the drive unit of the rotor tunneling shield described in UK patent 2.091.316 And CL IPC E 21 D 9/08 from 21.01.1981,Drive device described in this patent contains motors and node adjust the rotation speed of the rotor is supplied by a hydraulic pump connected through a valve with hydraulic motors connected to a rotor shaft of the tunneling shield tank working fluid pressure and drain pipes.The disadvantage of this device is the design complexity of the drive astelia in the direction of the face, and the range of adjustment of the rotor speed in this device depends on the magnitude of the axial force of the rotor blades.The problem to which this invention is directed, is to improve the efficiency and reliability of the drive control of the rotor tunneling shield and extend the range of regulation of the rotor speed.The problem is solved due to the fact that the drive device of the rotor tunneling shield containing the motors and site adjustment of the rotation speed of the rotor is supplied by a hydraulic pump connected through a valve with hydraulic motors connected to a rotor shaft of the tunneling shield tank working fluid pressure and drain piping, site adjustment of the rotational speed of the rotor is provided with a block animation containing dispenser, two hydraulic machines, shafts which are rigidly interconnected, and two non-return valve, with the inlet of the distributor block animation through a discharge pipe connected to the hydraulic pump, one output it through a check valve connected to the distributor node to adjust the speed of rotation of the rotor, and the other output with hydraulic machines, while the second check valve connected to the other hydraulic machines, and plums the C of the prior art, including searching by the patent and scientific and technical information sources has allowed to establish that the applicant is not detected similar, characterized by signs, identical to all the essential features of the claimed invention, therefore, the claimed invention meets the criterion of "novelty" in the existing legislation.In Fig.1 presents a General view of the rotary tunneling machine with a drive device.In Fig.2 shows a schematic hydroscheme node adjust the speed of rotation of the rotor.Drive unit rotor tunneling machine are accommodated in the housing 1 and contains 2 motors (Fig.1 shows one hydraulic motor) connected via a shaft 3 with the rotor 4 tunneling shield. The node speed is supplied by the hydraulic pump 5, associated with the motor 2 through the valve 6. For the condensation of a working fluid tank is 7. Site adjustment of the rotational speed of the rotor is provided with a unit multiplier 8 containing valve 9, hydraulic machines 10 and 11, the shafts are rigidly interconnected, and two check valves 12 and 13, and the input of the distributor block multiplier 8 through the discharge pipe 14 is connected to the hydraulic pump 5. The output of block multiparity of rotation of the rotor, and another solution with hydraulic machines 10, with the second check valve 13 is connected to another hydraulic machines 11 and plum hydraulic machines 16 is connected through the drain pipe 17 to the tank fluid 7. The hydraulic machines 11 equipped with a pressure regulator 18.The device operates as follows.When a drive device in normal mode (the mode in which the regulation of the speed of rotation is adjustable pump 5) working fluid from the pump 5 through the pressure pipe 14 through the valve 9 and the check valve 12 is supplied to the distributor 6 and, further, on the 2 motors. Changing the feed pump 5, to regulate the speed of rotation when the direction of rotation of the rotor change by switching the control valve 6.In the mode of the animation of the working fluid from the pump 5 through the valve 9 is supplied to the hydraulic machines 10, which operates in the mode of the hydraulic motor, rotates the shaft of the hydraulic machine 11, and the hydraulic machines 11 in the pump delivers the working fluid through the valve 6 to the motor 2. Because the hydraulic machines 11 has a large volume constant than hydraulic machines 10 and they are rigidly connected by a shaft, the amount of working fluid supplied to the motors 2, there will be more and hence uvelichit the volume of constant hydraulic machines 10 and 11. This increase in the coefficient multiplier decreases in proportion to the pressure on the pipe section 15. To increase the pressure in this area to the level of pressure in the pipeline section 14 of hydraulic machines 11 equipped with a pressure regulator 18. In this case, when the pressure on the site of the discharge pipe 15, corresponding to the beginning of the regulation, the controller 18 reduces the coefficient multiplier that increases the air pressure. The controller 18 is, for example, a spring-loaded piston, kinematically associated with the regulatory body fluid machines 11 (on the drawings conventionally not shown).Thus, the presence of a node adjust the speed of rotation of the rotor unit multiplier can increase the reliability of the control rotor tunneling shield, providing the speed control in a wide ranges, which ultimately helps in soils with different hardness to improve the performance of rotary tunneling machine.
ClaimsDrive unit rotor tunneling shield containing motors, the node adjusts the rotation speed of the rotor is supplied by a hydraulic pump connected through the distributor shall Borovoy, characterized in that the node adjust the speed of rotation of the rotor is provided with a block animation containing dispenser, two hydraulic machines, shafts which are rigidly interconnected, and two non-return valve, with the inlet of the distributor block animation through a discharge pipe connected to the hydraulic pump, one output it through a check valve connected to the distributor node to adjust the speed of rotation of the rotor, and the other output with hydraulic machines, while the second check valve connected to the other hydraulic machines, and plum hydraulic machines are connected through a drain pipe to the tank fluid.
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.
2 cl, 4 dwg
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.
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: tunnel construction, particularly devices to construct hydroelectric power plant floodgates and to build motor roads and rail roads in mountains.
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.
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.
EFFECT: reduced wear of cutting components; increased boring efficiency.
SUBSTANCE: invention is related to mining, in particular to mechanised performance of underground mine tunnels with round shape of cross section. Method for performance of underground mine tunnel of round cross section includes formation of oriented cavity in the Earth bowels, cutting of helical and longitudinal radial channels in edge zone of tunnel in surrounding rock mass, loading and transportation of broken muck, maintenance of stripped area by erection of support and organization of ventilation. Together with cavity formation they cut three longitudinal radial channels, evenly distributing them in plane of tunnel cross section. At the same time one of longitudinal radial channels is oriented along line of most probable largest action of external load from forces of rock pressure. Damaged rock is removed from longitudinal radial channels and loaded in transport vehicle. In longitudinal radial channels they install embedded elements, to which support elements are connected. Besides depth of longitudinal radial channel makes at least half of radius of cross section of produced tunnel.
EFFECT: higher reliability of mine tunnel maintenance in operational period.
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.
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.
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.
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
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.