Device for determining the position of the tunneling shield
Device for determining the position of the tunneling shield relative to project the axis of the tunnel along the light beam of a laser pointer is used for manual and automatic control of the spatial position of the tunneling machine in the construction of tunnels. The device comprises a collecting lens, a photo sensor, modulator sensor zero position, the modulator is designed as two opaque plates arranged at an angle to each other. The performance of the modulator can improve the measurement accuracy and to increase the measurement range angular coordinates. The device is equipped with two pendulum sensors deviations relative to the vertical, and a work measurement tool position pendulums are opaque plate modulator. 2 C.p. f-crystals, 3 ill. The invention relates to the mining industry, namely, devices for determining the position of the tunneling shield relative to project the axis of the tunnel along the light beam of a laser pointer, and can be used for manual and automatic control of the tunnel shield.A device orientation tunneling shield used in systems the mechanisms and ensure the passage of the light beam from the laser to the photodetector, rigidly mounted on the tunneling shield, with the light beam parallel project to the axis of the tunnel, the photodetector, the recording linear and angular deviations of the tunneling machine in plan and profile, inclinometer, the registration roll and pitch of the tunneling shield computing unit that produces the calculation of the variance of the tunnel shield depending on the readings of a sensor and inclinometer.A disadvantage of the known device is that it contains as a separate component units unit inclinometer.A device for determining the linear and angular position of the tunneling machine relative to project the axis of the tunnel defined by a light beam of a laser pointer, containing the collective lens, the photosensor modulator with a drive of rotation located between the collecting lens and the photosensor (A. C. the USSR 2122097 And class. E 21 35/24 from 25.07.1984 year).The disadvantage of this device is the low accuracy of the measurement, a small range of measuring angular deviations, the impossibility of measuring roll tunneling shield.The objective of the invention is to increase the measurement accuracy, increased range of measuring angular deviations, as well as expanding the functionality of the device is it about the design of the axis of the tunnel along the light beam of a laser pointer, containing a collecting lens, a photosensor mounted on the axis of the collecting lens, the modulator with a drive of rotation located between the collecting lens and the photosensor has a sensor zero position, the modulator is designed as two opaque plates, and the arrangement of the modulator and the light blocking plate such that each of the plates, one turn of the modulator crosses the light beam twice. The device further comprises a pendulum with optocoupler and the pendulum axis parallel to the optical axis of the collecting lens and the target optocoupler crossed the plate of the modulator during their rotation. The device also contains a second pendulum, similar to the first rotated relatively around the axis of rotation of the modulator 90o.Conducted by the applicant's analysis 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 shows a device for prevlen view of the device in the plan.In Fig. 3 shows a scan of a cylindrical surface.The device comprises a collecting lens 1, the photosensor 2, a modulator 3 c drive rotation 4 of the modulator, the sensor 5 zero position of the modulator. The device includes a pendulum 6 optocoupler 7 mounted on an axis parallel to the optical axis of the collecting lens 1, and an additional pendulum 8 optocoupler 9, fixed on the axis perpendicular to the optical axis of the collecting lens 1.In Fig. 2 shows a possible position of the light beam 10, private accommodation opaque plates 11 on the cylindrical surface, the front 12 and rear 13 zone coordinate measuring light beam 10.In Fig. 3 shows a scan of a cylindrical surface, where light blocking plate 11, zones 12 and 13 measurement of coordinates and the intersection of these zones light beam 10.The surface of the collecting lens 1 is an active area of the linear measurement of the deviations of the device. The photo sensor 2 includes a photosensitive surface that generates an electrical signal when incident to the light beam 10. The dimensions of this surface correspond to the range of measured angular deviations of the laser beam in plan and profile attributes is different from the axis of rotation of the modulator 3 by an amount providing double crossing each plate light beam 10. At least one of the edges of each plate 11 non-parallel, at least one edge of the second plate 11.The width of the plate 11 must provide overlapping crossed them the light beam 10 to the extent that allows the photosensor 3 to register this intersection, in the optical option to completely block the light beam. The actuator 4 rotation provides uniform rotation of the modulator 3. The axis of rotation of the modulator is perpendicular to and intersects the optical axis of the collecting lens. The sensor 5 zero position of the modulator 3 may be an optical coupler, the beam which intersects the box, installed on the modulator 3 as it rotates. The pendulum 6 swinging on an axis parallel to the optical axis of the collecting lens 1, and is equipped with an optical coupler 7, the beam which intersects the plate 11 during the rotation of the modulator 3. The pendulum 6 is located outside the zone of passage of the light beam 10. Additional pendulum 8 optocoupler 9 is similar to the pendulum 6 with the difference that its axis perpendicular to the optical axis of the collecting lens 1.The light beam 10 is oriented in space parallel project to the axis of the tunnel and separated from her at a distance, Oprah is installed on the tunneling shield, moreover, the optical axis of the collecting lens 1 parallel to the longitudinal axis of the shield.The invention consists in the following.The sequence of pulses generated in the cycle of the modulator 3, is provided by the overlap of the light beam opaque plates 11. The angle occupied by the plates 11 to the modulator 3 can be compared with the prototype is considerably increased, because the scan modulator no zone of complete overlap area measure before scanning their light-transmitting slits. Increasing the angle occupied by the plates 11, allows to increase the angle between the plates. Increase of the latter leads to higher precision measurement of angular and linear deviations in the profile.At the same time increases the available area for measuring the angular deviation of the light beam 10 with respect to the optical axis of the collecting lens 1, which corresponds to an increase in the measurement range of angular deviations of the tunneling machine.Under item 2 of the invention the modulator 3 of the device is a measuring tool roll tunneling shield, because points of intersection of the plates 11 beam optocoupler 7 pendulum 6 uniquely define the roll of the tunnel shield poditsa by the sum of the angles of deviation of the light beam 10 relative to the horizontal surface in the profile and device-specific angular deviations of the tunneling machine is relatively light beam 10.Under item 3 of the invention the modulator 3 of the device is also a measuring tool inclination angle of the pendulum 8, a signal which is an adjustment when measuring roll tunneling machine without using the deflection of a light beam 10 relative to horizontal.The device operates as follows.The light beam 10 impinges on the collecting lens 1, is deflected and focused onto the focal plane of the lens. Getting on the photosensor 2, the light beam forms an electric signal. During the rotation of the modulator 3, each of the light blocking plate 11 is crossed by the light beam 10 twice per rotation of the rotation of the modulator 3. The trajectory rejected collecting lens 1 of the light beam 10 in the coordinate system of the device in question uniquely identifies the deflection unit with respect Needlenose collecting lens 1 of the light beam 10. The coordinates of the beam in the plane of the lens correspond to linear deviations of the device, the coordinates of the beam in the focal plane of the collecting lens 1 is uniquely correspond to angular deviations of the device in plan and profile relative to Needlenose beam 10.Thus, if you define the coordinates rejected her light lens 1 and the focal plane of this lens, get the required coordinates.This design of the device for determining the position of the tunneling shield relative to project the axis of the tunnel along the light beam of a laser pointer improves the precision motion control of tunnel shield in the construction of the tunnel, to improve the quality of constructed tunnels.
Claims1. Device for determining the position of the tunneling shield relative to project the axis of the tunnel along the light beam of a laser pointer, containing the collecting lens, the photosensor mounted on the axis of the collecting lens, the modulator with a drive of rotation located between the collecting lens and the photosensor has a sensor zero position, characterized in that the modulator is designed as two opaque plates, and the arrangement of the modulator and the light blocking plate such that each of the plates, one turn of the modulator crosses the light beam twice.2. The device under item 1, characterized in that it further comprises a pendulum with optocoupler and the pendulum axis parallel to the optical axis of the collecting lens, the target optocoupler crossed the plate of the modulator when the rotation is relatively around the axis of rotation of the modulator 90o.
FIELD: mining industry.
SUBSTANCE: device has two asynchronous electric engines, connected via reducers to drive sprockets of continuous traction chain, provided with plane carriages with their possible displacement along the guide, and hydraulic cylinders for displacing guide on pit-face. To windings of stators of first and second electric engines connected respectively are outputs of first and second frequency converters, inputs of which are connected to power grid and control inputs of which are connected respectively to outputs of first and second frequency adjusters. To frequency adjusters also connected are inputs of load detectors, to outputs of which load balancing block is connected, outputs of which are connected to inputs of first frequency adjuster. To inputs of both frequency adjusters output of load adjuster is connected, inputs of which are connected to load-setting block and load sensor for second engine. To output of second frequency converter connected are input of control block, other input of which is connected to signal block of base plant, and stator winding of third asynchronous engine, which via mechanical link is connected to first and second hydraulic pumps, having constant working volumes. Output of first hydraulic pump is connected to force hydro-main and input of second preventing hydraulic valve and to first inputs of two-position hydraulic distributors with electromagnetic control, to electromagnets of which outputs of control block are connected. Second inputs of two-positional hydraulic distributors with electromagnetic control are connected to control chambers of hydro-controlled two-positional hydro-distributors, which are part of hydro-blocks. Outputs of hydro-controlled two-positional distributors are connected to opposite hollows of volumetric dosing device of each hydro-block, and their inputs are connected respectively to outputs of hydro-distributors for controlling hydro-cylinder for moving the guide on pit-face, inputs of each of which are connected to force and drain hydro-mains, and outputs are connected to piston and rod hollows of appropriate hydro-cylinder.
EFFECT: higher efficiency.
FIELD: mining industry.
SUBSTANCE: mining combine has extraction means, on which a body is mounted, having at least one first liquid outlet, for supplying liquid to material. Pipeline, through which liquid is fed to first liquid outlet, contains means for measuring flow and/or pressure of liquid in pipeline, for determining, in which of to layers outlet is positioned. Combine can have at least one second liquid outlet, placed in such a way, that first liquid outlet is in lower layer, and second liquid outlet is placed in upper layer. First liquid outlet can have one of multiple first liquid outlets spaced from each other, and second liquid outlet - one of multiple spaced from each other second liquid outlets. Efficiency of liquid flow through multiple spaced first outlets can surpass those of multiple spaced from each other second liquid outlets. Placement of second liquid outlet in separate body cover is possible. First and second liquid outlets can be directed downwardly relatively to direction of mining combine displacement. Method for controlling depth of position of mining combine extraction means includes placing two liquid outlets, interacting with material extraction means, in a material, while second liquid outlet is placed above first liquid outlet, liquid is fed to first and second liquid outlets and flow and/or pressure of liquid is measured. Layer, wherein liquid outlet lies, is detected, and first liquid outlet is placed in lower layer and second liquid outlet is placed in upper layer, to determine depth of position of extraction means relatively to two layers.
EFFECT: higher precision.
2 cl, 9 dwg
FIELD: mechanical engineering, particularly to perform remote control specially adapted for machines for slitting or completely freeing the mineral.
SUBSTANCE: system includes electric drive for cutting tools, hydraulic drive for feeder legs and crawler, two-stage control hydroblock to operate the hydraulic drive having inlet channel, hydrocylinder with piston cavity for support erector, control hydroblock adapted to operate support erector hydrocylinder, blocking hydrocylinder having spring-loaded shaft return means, two-positioned pilot spool, pumps, pressurizing means and discharge means. Pilot spool has outlet channel and hydrocontrol cavity to provide pilot spool fixation in two working positions. Outlet channel of pilot spool communicates with outlet channel of two-stage control hydroblock adapter to operate the hydraulic drive of feeder legs and crawler to provide alternate communication between outlet pilot spool channel and pressurizing and discharge means. Hydrocontrol cavity of pilot spool communicates with blocking hydrocylinder and piston cavity of support erector hydrocylinder.
EFFECT: increased safety for people present in zone of moving mining machine parts action.
FIELD: mining industry, particularly for drilling exploratory and pressure-relief wells before mineral extraction from formations, including outburst-dangerous formations and ones characterized with high gas content.
SUBSTANCE: drilling rig comprises housing, support, drive to rotate drilling rod provided with cutting tool and hydraulic cylinder for cutting tool pulldown. Electrohydraulic valve is installed in hydraulic cylinder circuit. Electric drive of electrohydraulic valve is linked with load-sensing unit, which detects load applied to drilling rod rotation drive. The electric drive is connected to load-sensing unit through amplifier relay to provide bringing amplifier relay into operation when load applied to rotation drive exceeds nominal load by 20-30%. Cutting tool is made as symmetric screw conveying surfaces defining forward and reverse strokes connected one with another through generatrix. Side cutting edges of surfaces defining forward and reverse strokes are spaced apart.
EFFECT: increased operational reliability along with reduced power inputs for drilling, possibility to remove rod from well with negligible deviation thereof from predetermined direction of drilling.
2 cl, 3 dwg
FIELD: mining, particularly remote control specially adapted for machines for slitting or completely freeing the mineral.
SUBSTANCE: device comprises the first, the second and the third asynchronous motors. The first and the second electric drives are connected to drive sprocket of closed pull chain provided with plough carriages, which may move along guiding means. Device also has hydraulic cylinders to move guiding means to face, mechanical gear, the first and the second safety hydraulic valves, the first and the second hydraulic pumps, the first and the second frequency converters, the first and the second frequency regulators, load sensors, load balancing unit, load regulator, load assignment unit, control unit, initial setting signaling unit, hydraulic distribution means, which control hydraulic cylinders to move guiding means to face, hydraulic units, electrohydraulic unit, channel switching unit, flow meter, excavated seam thickness setting unit, breakage face length setting unit, multiplication unit, divider, optimizing peak-holding controller, control signal generation unit, asynchronous single-phase motor and screw gear made as a nut and screw. The first and the second hydraulic pumps include volume regulation means.
EFFECT: reduced specific energy consumption along with increased front plant output.
SUBSTANCE: invention relates to mining, in particular, to navigation system of combined cutter-loader intended for operations in open-pit bench. This mining equipment includes a combined cutter-loader, a conveyor assembly, and a steering assembly, which joins said combined cutter-loader and conveyor assembly. In addition, this equipment includes a course sensor and a steering device, which is sensitive to signals from said course sensor. The first drive is located in combined cutter-loader, in conveyor assembly, or in steering assembly. The first drive is placed on one side of combined cutter-loader centreline. In addition, the second drive is located either in combined cutter-loader, or in conveyor assembly, or in steering assembly. The second drive is placed on another side of combined cutter-loader centreline. The first and the second drives are used to adjust angle of joint between combined cutter- loader and conveyor assembly on either side of parallel line in order to keep pre-defined direction of combined cutter-loader advancing.
EFFECT: precise driving of combined cutter-loader in order to increase coal cutting from mining zone.
22 cl, 13 dwg
SUBSTANCE: device for control over arrow of operating member of mining machine consists of hydro-cylinders of vertical lifting an horizontal turn and of arrow telescope, of half-throttle, included into line feeding working fluid into piston cavities of lifting hydro-cylinders, of double-sided hydro-locks included into feeding lines of lifting hydro-cylinders and telescope, of main distributors of hydro-cylinders control for lifting, turn and telescope, which are successively arranged to provide free overflow of working fluid into tank in neutral position, of main electro-hydro-distributors for control over main distributors and over additional distributor automatically switched on. There is also a main and additional pumps, a pressurising collector, safety valves, test pressure gages, a pressure regulator, a tank for hydro-system working fluid, and a control panel with buttons for six commands. Further the device contains a control station with a circuit of three memory elements and the element of logical function or operation, additional distributors with back valves on their outputs and correspondingly with throttles on control lines, pointed sensors of feedback, installed correspondingly on the hydro-cylinders and connected to memory elements.
EFFECT: power stabilisation of operating member of mining machine, increased efficiency of working member drive operation, increased energy saving at mine working and grade of extracted coal.
3 cl, 4 dwg
SUBSTANCE: system consists of optical master of direction- laser, of diaphragm, of photo-receiving device, of interface module, of sensors of position of each degree of actuator mobility, of tilt sensor, of blocks of control over electro-hydro-valves and of computer device. The photo-receiving device consists of semi-transparent mirror assembled at angle of 45° to lengthwise axis of the case of the device, of two screens - the tail and knife ones with zero-marks, and of two video-modules. The tail screen is arranged above reflecting surface of the semi-transparent mirror so, that it is parallel to lengthwise axis of the device, while the knife screen is located at some distance beyond non-reflecting surface and perpendicular to lengthwise axis. Each video-module is installed behind the corresponding screen at the focal distance of the objective.
EFFECT: upgraded reliability and efficiency of control over actuator.
SUBSTANCE: group of inventions is related to system and methods for control of getting machine along bottomhole in underground mine tunnel, and also to mining face for method realisation. Method includes measurement of gas concentration and depending on measurement results, generation of warning signal. At the same time volume of production achieved by getting machine is additionally established. In case of insufficient correlation between volume of production and gas concentration, a warning signal is generated.
EFFECT: invention provides for possibility to minimise danger of methane gas explosion in mining face, to establish fact of gas sensor failure and/or manipulation with it.
26 cl, 3 dwg