RU2364718C1 - Unit for graduation and calibration of inclinometres - Google Patents

Abstract

FIELD: oil-and-gas industry.

SUBSTANCE: invention relates to metrological assurance of geophysical and commercial wells, particularly for investigations and development testing of new types of inclinometres, particularly for setting, regulation, calibration and balancing of its sensitive components. Unit contains stand in the form of plate, implemented in the form of toothed gear and two vertical struts (VS), basis-platform with fastener assembly to fixed platform, the second platform with cantilevered differential axles, which through revolution rests are fixed to top parts of VS, three discs of single-enveloping wormgear drives (SWD). The first disk - is located horizontally on basis-platform on bearings with fixation by means of spring-load disk with adjusting screw, the second - is rigidly fixed to cylinder of fastener assembly of inclinometre body, the third - is fixed in vertical plane. Parallel to disks there are installed three limbs of rough indication of angles, three verniers for accurate reading of angles, three spring-loaded single-enveloping wormgear drives, connected by worm toothing to disks. Stand is simultaneously the first disk of single-enveloping wormgear drives. Additionally VS is rigidly fixed to the first disk of single-enveloping wormgear drives. Overhung differential axles with revolution supports, implemented in the form of plain bearings, are outfitted by bob-weights with regulated cargos and collet closers (CC) at ends. One of overhung differential axles is outfitted by rotation fixer in the form of CC with eccentric with ability of fixation in different position. Fastener assembly of inclinometer body is implemented in the form of elongated cylinder with CC at ends. Put into plain bearing in box, located between VS and rigidly fixed to the second dick of single-enveloping wormgear drives. The first limb of rough reading of angles is fixed to the first disk of single-enveloping wormgear drive, and the first nonius for accurate reading of angles is rigidly fixed to body of the first single-enveloping wormgear drive. The second limb of the rough reading of angles is rigidly fixed to fastening assembly of inclinometre body, and the second nonius for accurate reading of angles is rigidly fixed to box, located between VS. The third limb of the rough reading of angles is rigidly fixed on overhung differential axle of one of VS, and the third nonius for accurate reading of angles is rigidly fixed to mentioned VS. Additionally single-enveloping wormgear drives are outfitted by mechanisms of engagement and disengagement in the form of rotary eccentrics with fixation in two different positions. For doth sides of eccentric travel there are installed rubber insertion for spring loading of single-enveloping wormgear drives travel.

EFFECT: task solution of measurement accuracy increasing and maintainability.

11 cl, 4 dwg

Description

The invention relates to the metrological support of geophysical and production wells, namely, to carry out a complex of studies and bench tests of new types of inclinometers, in particular, to configure, adjust, calibrate and balance their sensitive elements.

A known setup for tuning and experimental studies of inclinometers, comprising a U-shaped stand in the form of a plate and two vertical racks, a lower platform with attachment points to a stationary base, an upper platform with cantilever axles mounted on it, which are connected by rotation supports to the upper parts of the vertical racks coasters, attachment unit of the inclinometer case, three worm gear disks, the first of which is rigidly connected to the plate and is located horizontally and coaxially to the second disk, rigidly connected one with the attachment point of the inclinometer case, and the third disk is mounted in a vertical plane, rigidly connected to the upper platform and mounted on one of the axle shafts coaxially with it, three coars of rough reading of the angles parallel to the disks of the worm gears, two of which are designed for reading the anti-aircraft and sight angles and are rigidly connected respectively to the second and third disks, and the third azimuth reference dial using two threaded attachment nodes is connected to the plate, three spring-loaded worms and three limbs for the exact reference of angles connected with worms (ed. USSR No. 791957, E21B 47/02, 1978).

This installation does not provide the required measurement accuracy and is difficult to operate.

A known setup for tuning and experimental studies of inclinometers, comprising a U-shaped stand in the form of a plate and two vertical racks, a first platform with attachment points to a stationary base, a second platform installed between the plate and the first platform coaxially with them and having an orthogonal fixing stop, wherein four grooves are made on the first platform, equally spaced along its generatrix surface, the third platform with cantilever axles, which are connected to the upper vertical parts through the rotation supports struts, an inclinometer body mounting unit made in the form of two helms, a cylinder and a replaceable collet, with the helms connected to the cylinder by a thread, and the replaceable collet is coaxial with it, three worm gear disks, the first of which is rigidly connected to the plate and is located horizontally, the second disk is rigidly connected to the cylinder of the attachment unit of the inclinometer body, the third disk is rigidly connected to the third platform and placed on one of its semiaxes coaxially with it, three coars moreover, the limbs of the antiaircraft and sighting angles are rigidly connected to the third and second disks, respectively, and the azimuth limb is connected to the plate through two threaded attachment nodes, three spring-loaded worms connected by worm gears with the disks, and three angular exact position counters mounted on the worms (automatic St. USSR No. 1441061, E21B 47/02, 1988).

The installation has limited operational capabilities, as it does not provide the required measurement accuracy and does not satisfy ergonomic requirements. This is due to the fact that the coars of the coarse and precise reference are spatially separated from each other, moreover, the limbs of the exact reference are located on the flywheels of the worms, and the limbs of the coarse reference are located on the axis of the worm wheel. Since it is not possible to completely eliminate backlash in worm gears, it is not possible to make an error in setting angles of less than ± 10 '. In addition, the zenith angle reference dial is located in the interior of the uprights, which limits access to it and makes it difficult to take readings. All this taken together greatly complicates the operation of the installation and does not allow its use, for example, for debugging accurate electronic inclinometers of a new generation.

A known installation (prototype) for tuning and experimental studies of inclinometers, comprising a U-shaped stand in the form of a plate and two vertical racks, a first platform with attachment points to a stationary base, a second platform installed between the plate and the first platform coaxially with them and having an orthogonal stop fixation, and on the first platform there are four grooves equally spaced along its generatrix surface, the third platform with cantilever axles, which are connected to the upper parts through rotation bearings and vertical struts, the mounting unit of the inclinometer body, made in the form of two helms, a cylinder and a replaceable collet, with the helms connected to the cylinder by threads, and the replaceable collet is coaxial with it, three worm gear disks, the first of which is rigidly connected to the plate and is located horizontally, the second disk is rigidly connected to the cylinder of the attachment unit of the inclinometer body, the third disk is rigidly connected to the third platform and placed on one of its semiaxes coaxially with it, three coars about counting angles, and the limb of the sighting angle is rigidly connected to the second disk, and the azimuth limb is connected to the plate by two threaded attachment nodes, three spring-loaded worms connected by worm gears with the disks, and three limbs of the exact reading of the angles, while the third disk with the zenith angle limb , the scale of which is located on the outside of the vertical strut, is rigidly connected with one of the axles of the third platform, the dials of the exact reading of the angles are directly connected to the dials of the rough reading, the dial of the exact measurement of the azimuthal angle and fixedly secured to the second platform, accurate measurement of the limb zenith angle - the respective vertical leg, the limb accurate sighting angle - on the third platform, and the second semi-axis inclinometer suppozitno fastening assembly housing mounted instrument table (Pat. RU No. 2178522, E21B 47/02, publ. October 20, 2002).

In the prototype, the limbs of coarse and accurate readings are located on the same axis of the worm wheel and are directly mated with each other, which eliminated the influence of the play of the worm gears on the angle readings. Due to this, the measurement error becomes smaller.

The prototype installation has limited operational capabilities, as it does not provide the required accuracy of the azimuthal and sighting angles due to the presence of backlash in the cantilever shafts, in the first worm gear drive, gearbox and cylinder. In addition, in the known installation there are no counterweights with adjustable weights on the cantilever axles, which reduces the balance of the inclinometer during measurement, and when heavy devices are installed in the worm gear, the gear can be broken, which reduces operational reliability.

The task to which the claimed device is aimed is to increase the reliability of the design and reduce the absolute measurement error, which greatly expands the operational capabilities when setting up a new generation of inclinometers.

The problem is solved in that in the installation for calibrating and calibrating inclinometers, comprising a stand in the form of a plate and two vertical racks, a platform base with attachment points to a stationary base, a second platform with cantilever axles, which are connected through rotation supports to the upper parts of the vertical racks, mounting unit of the inclinometer case in the form of a cylinder with hand wheels and collet clamps, the hand wheels being connected to the cylinder by a thread, three worm gear disks, the first of which is located horizontally, the second the nth disk is rigidly connected to the cylinder of the attachment unit of the inclinometer body, the third disk is mounted in a vertical plane, and there are three coars for rough reading of the angles parallel to the disks, and three noniuses directly connected with them for an accurate reading of the angles, three spring-loaded worms connected by worm gears with the disks, the third disk with a limb of the zenith angle, the scale of which is located on the outside of the vertical strut, is rigidly connected with one of the semiaxes of the third platform, the nonius of the exact measurement of the azimuthal the gla is rigidly fixed on the second platform, the nonius of the exact measurement of the zenith angle is on the corresponding vertical stand, the nonius of the exact target angle is on the third platform; the stand in the form of a plate is made in the form of a gear wheel, which at the same time is the first worm gear disk located horizontally on the platform base on sleeve sliding bearings with fixing by means of a spring-loaded disk with adjusting screws, the vertical struts are rigidly fixed to the first worm gear disk in the form of a gear wheel , cantilever semiaxes with rotation bearings made in the form of sliding bearings, equipped with counterweights with adjustable weights having collet clamps on the one of the cantilever axles is equipped with a rotation lock in the form of a collet clamp with an eccentric with the possibility of fixing in different positions, the mounting unit of the inclinometer body is made in the form of an elongated cylinder with collet clamps at the ends mounted on supports in the form of sliding bearings in a box located between the uprights, while the worm gears are equipped with input and output gearing mechanisms in the form of rotary eccentrics with fixation in two different positions, with x on both sides Ode to the eccentric, rubber inserts are installed to spring the worm gear.

The bearings of the first worm gear disk are made radial-axial, the cantilever axles are provided with radial-axial and radial bearings, the mentioned cylinder and gearbox are equipped with radial-axial and axial bearings.

In addition, the installation is made with one floating support - the semi-axis, having freedom of movement along its axis relative to one of the vertical posts, and can be equipped with electric sensors of angular position.

In the installation, the fixing unit for fixing the inclinometer case in the box is fixed with a folding locking stop, the counterweights to the free ends of the cantilever axles are attached using clamps, and the third rough-angle dial is attached to the cantilevered axle using a clamp.

All installation details are made of non-magnetic materials.

In contrast to the known means of the claimed design is made with the following features.

The supporting surfaces are made in the form of angular contact bearings with minimal clearance, allowing rotation of the investigated inclinometer in three mutually perpendicular planes - inclination along the zenith angle, rotation in azimuth and sighting angle around its axis.

Rotation in various planes is carried out using worm gears with a spring-loaded worm to eliminate gaps in the gear pair due to manufacturing accuracy and wear during operation. In this case, the worm gears are equipped with entry and exit mechanisms in the form of rotary eccentrics with fixation in two extreme positions. The gear worm is spring-loaded using rubber elements mounted on both sides of the eccentric stroke. Thus, the rotation of the inclinometer under study can be carried out in two modes: “fast” - with a worm pair of each of the existing gears disengaged from gearing and the so-called “eyeliner mode” - with the help of a gear transmission.

Adjustable balancing weights are provided to eliminate the overturning moment when securing the inclinometer at various points along its length.

The mounting unit of the inclinometer case is made in the form of an elongated cylinder with collet clamps at the ends and mounted in sliding bearings in a box located between the uprights on the cantilever axles.

The cantilever axles with supports for turning along the zenith angle are made in the form of plain bearings, angular contact on one side and radial on the other. In this case, one of the cantilever axles is equipped with a rotation lock in the form of a collet clamp with an eccentric, which allows you to fix the position of the box relative to the racks at the zenith angle in various positions.

The installation can be equipped with electric sensors of angular position and is made with one semi-axis having a stroke along its axis relative to one of the vertical posts.

These distinctive design features of the installation significantly increase the accuracy of measuring and adjusting inclinometers, while the absolute measurement error is 10 arc minutes.

The essence of the device is illustrated by drawings: figure 1 shows a General view of the installation; figure 2 is a top view; figure 3 is a view A, figure 4 is a setup containing sensors of angular position.

The installation contains a plate 1, made in the form of a gear wheel on which two vertical posts 2 and 3 with overlays 4, a base 5, a box 6 with semi-axles 7 and 8 console-mounted in it, a mounting unit 9 of the inclinometer body with two steering wheels 30, and counterweights are mounted 10 with adjustment of the load 11 in height, limbs 14, 15, 16 with scales for rough reading of the angles of rotation in azimuth, zenith and vizier, respectively, noniuses 22, 23, 24 with scales for accurate reading of the angles. Noniuses have the ability to initially adjust relative to the scale of the limbs. The limbs also have the ability to initially adjust during the setup process by turning around their axis and can be fixed. Limbs 14 and 16 - with clamps 17 and 18, and limb 15 - with a clamp on a collet clamp.

The plate 1 of the worm gear of the installation turning in azimuth is coupled to the base 5 by means of a radial-axial sliding support 49, 50 and by means of a spring-loaded disk 42. The gear wheel 13 is rigidly connected to the attachment unit 9 of the inlinometer body, and the gear wheel 12 is mounted in a vertical plane and rigidly connected to the axle shaft 7 of the box 6.

The axles 7 and 8 are rigidly fixed to the box 6 with screws 29 and, with the help of sliding bearings (radial and radial-axial) 45, 46, 47, 48, are connected with the upper parts of the struts 2 and 3.

The inclinometer body mounting unit 9 is made in the form of an elongated cylinder with collet clamps at the ends, mounted on radial-axial plain bearings 51, 52, 53, 54, and two helms 30. Helms 30 are used to secure the inclinometer under study in collet clamps.

The attachment unit of the inclinometer body 9 can be fixed in the box 6 with the help of a folding locking stop 41.

Counterweights 10 are attached to the free ends of the axle shafts 7, 8 using clamps 58. Fixing the changed position of the weights 11 on the balances 10 is carried out using a collet clamp 59. A side collet 60 is attached to the rack 3 to fix the axle shaft 60 with an eccentric 61. Limb 15 with a collet the clip is attached to the axle shaft 7 using the clamp 62. On the axle shaft 7 there is a split nut with a spring 63, which is in a fixed state relative to the axle shaft 7, a similar nut 64 is located on the cylinder 9 and is fixed relative to it.

Spring-loaded worms 19, 20, 21 of the rotation of the installation in azimuth, anti-aircraft and sighting angles are connected by gears with disks 1, 12, 13, respectively. The worms are mounted in sliding bearings in the rotary arms 33, 36 and 39, which are, each in itself, a rotary mechanism for input-output of the worm gear mesh and also contain a spring 31, a stud 32 with locknuts, pins 34, 66 (Fig. .2) and 37 (Fig. 3), eccentrics 35 and 40, rubber spring 38, hinged locking stop 41, disk 42, screws 43, spring 44, body 68.

The worm 19, being in engagement with the gear 1, is spring-loaded with a spring 31, which is mounted on a pin 32 and pressed against the housing 33. The housing 33 together with the worm 19 has the ability to rotate relative to the pin 34 for inputting and disengaging the gear pair. The worm 19 is engaged by moving the stud 32 inside the sleeve 55 and fixing it by turning the stud 32 along the guide.

The worm 20, being engaged with the gear wheel 12, is spring-loaded with a rubber spring 67 located in the rack 2, a rod 56 is attached to the housing 36, inside of which there is an eccentric 35, one end of which is inserted into the rack 2, where the pin 37 is installed (Fig. 3 ) Using the eccentric 35, the worm 20 enters and disengages. In a similar way, the worm 21 is spring-loaded. A rod 57 is attached to the rocker arm 39, in which the eccentric 40 is located, one end of the rod is inserted into the box 6, where the rubber seal 38 is installed.

The installation is installed on a stationary base (foundation) on three legs 25 with locknuts 26, 27, connected by threaded connections to the holes in the feet of the base 5. The spherical ends of the legs are mechanically connected with profiled washers 28, which, if necessary, can be rigidly connected by screws to the foundation.

Platform 65 with surface D and grooves E serves to install the optical quadrant KO1, theodolite and compass.

All installation details are made of non-magnetic materials, therefore, the effect on the Earth’s natural magnetic field is minimized.

For a more accurate determination of angles, the installation can be equipped with angular displacement sensors (hereinafter referred to as sensors) (Fig. 4).

The sighting angle sensor is fixedly mounted on the crosspiece 69, which is mounted on the box 6 and is located coaxially to the cylinder 9, on which the reciprocal crosspiece 70 is fixedly mounted, transmitting rotation to the sensor 71 through the coupling connection 75.

The azimuthal angle sensor 72 is fixedly mounted using the crosspiece 73 and the cover 74 coaxially to the base 5. To transmit rotation to the sensor using the coupling 75 on the disk 1, the crosspiece 76 with the adjustable axis 77 is coaxially mounted.

The zenith angle sensor 78 is fixedly fixed with a cross 79 to the column 2 coaxially to the axle shaft 7. The sensor 78 and the axle shaft 7 are connected using the coupling 75.

As sensors of angular displacements, a sensor of angular positions LIR-YES 2 can be used.

To avoid jamming and smooth running of the zenith angle and to compensate for errors associated with manufacturing inaccuracies and thermal expansion of parts, the installation can be performed with one floating support (figure 4). In this case, the axis 7 and the rack 2 are rigidly fixed relative to each other from axial movements, and the axis 8 has some freedom of movement in the axial direction relative to the rack 3 to compensate for the above errors.

Work on the inventive device includes two stages.

The first is the exact spatial orientation of the installation itself, that is, the combination of its basis with the support basis formed by the gravitational acceleration vector and the horizontal component of the total geomagnetic field intensity vector.

The second is the actually fixed orientation of the inclinometer at given angles.

In the first step, legs 25 are mounted on a fixed base. On the plane of the plate 1 parallel to the line passing through any two legs 25, an optical quadrant is installed, for example KO1, set to the horizontal horizontal position. By turning the plate 1 through 180 ° and rotating the legs 25, the base 5 is installed using the horizontal quadrant. Then, turning the plate 1 through 90 °, repeat the procedure. After the base 5 is aligned horizontally, the position of the legs 25 is fixed with locknuts 27.

Then, the technological platform 65 is fixedly mounted and fixed in the attachment unit of the inclinometer body 9. The optical quadrant is mounted on the surface D of the technological platform 65 and oriented in the inclination plane. By rotating the worm 20, controlling the quadrant readings, set the platform 65 horizontally and combine the zero readings of the limb 15 and the vernier 23 of the zenith angle, then fix the limb 15 with the collet clamp 62. Then the optical quadrant is oriented in the plane of the vertical posts 2 and 3, that is, in the plane perpendicular to the plane of inclination of the box 6, and check the horizontal position of the surface D of the platform 65 by turning it along the line of sight.

The next operation is to combine the inclination plane with the northward direction of the magnetic meridian. After the worm 20 is disengaged by rotation of the housing 6, the assembly 9 is tilted by 90 ° relative to the vertical axis, if necessary, the worm 20 is engaged and brought to the exact value. Then, at the opposite end of the platform 65, a compass, for example OBK-1 (compass with a small error), is installed in special grooves E. By smoothly rotating the plate 1 in the horizontal plane using the worm 19, the inclination plane is aligned with the northward direction of the magnetic meridian, which is recorded by zero indication of a compass. The rough gauge 14 by rotation on the plate 1 by zero division is combined with zero division of the nonius 22 of the azimuthal angle, after which the limb ring is fixed by clamps 17 and 18. After this, the attachment node 9 is installed in a vertical position and the cylinder with the compass is removed. Limb 16 of the target angle is combined with the zero mark of the vernier 24.

At the second stage, the investigated object - inclinometer is installed in the mount 9 and the rotation of the steering wheels 30 is fixed motionless. Then the inclinometer is balanced by means of counterweights 10 with weights 11, moving them along the guides, fixed with collet clamps 59. By free rotation with the worms 19, 20, 21 removed from the mesh, the inclinometer body is set to the required spatial position of the zenith angle 0-180 °, in azimuth ranges - 0-360 °, sighting angle 0-360 °. To fine-tune the worms 19, 20, 21 are engaged. The rotation of the worm 19, connected by gearing with the plate 1, leads to its rotation and, accordingly, the inclinometer in azimuth. The rotation of the worm 20, connected by gearing with the disk 12 mounted on the box 6, leads to rotation of the box 6 by the required zenith angle by rotating its axle shafts 7 and 8 relative to the struts 2 and 3 of the plate 1. After setting the required angle, the housing with an inclinometer is fixed with an eccentric 61, located on the collet clamp 60. The sighting angle is set by rotating the worm 21 and, accordingly, the disk 13, rigidly connected to the attachment unit of the inclinometer 9. The folding locking stop 41 serves to prevent the rotation of the node 9 from the disk 13 m on the box 6 during rotation of hand wheels 30 and installed in the node 9 inclinometer mounting housing. The value of the specified angular parameters of the spatial orientation of the inclinometer body is read according to the readings of the rough limbs 14, 15, 16 and noniuses 22, 23, 24 of the exact samples with a division price of 3 arc minutes.

The worms 19, 20, 21 are engaged with the toothed discs 1.12, 13 by turning or moving the eccentrics 32, 35 and 40, by turning the rocker arms 33, 36 and 39 around the pins 34, 37 and 66, respectively.

This design of the worm pairs allows for the rapid rotation of the disks 1, 12, 13 when the worms are disengaged.

To configure, calibrate and experimentally study inclinometers, in particular, to ensure the orthogonality and horizontalness of their sensitivity axes, as well as to estimate the distribution of systematic errors at reference points in the azimuth range (0, 90, 180, 270 °), a quick orientation of the inclinometer body in all three planes. This is achieved by disengaging the worms.

After completion of the adjustment and experimental studies, the inclinometer is removed from the attachment point 9 by means of the reverse rotation of the helms 30.

When the unit is operating with angle position sensors, the angular parameters of the spatial orientation of the inclinometer body are automatically displayed with data on the zenith, azimuth, and angle of the deflector on a computer screen. The operation of the LIR-DA 2 sensor is based on the principle of photoelectron scanning of dashed rasters. Infrared LEDs are used as illuminators, and silicon photodiodes are used as radiation detectors. After turning on the power from the sensor output bus, you can read the code corresponding to the angular position of the sensor shaft within 360 °.

In the case of the installation with one floating support, when one axis has freedom of movement along its axis relative to one of the vertical posts, jamming of the axles 7 or 8 with posts 2 or 3 is excluded and a smooth movement of the mechanism for measuring the zenith angle is ensured.

The main distinguishing features of the claimed installation from known devices are the design of worm gears. In our case, for example, when measuring the azimuthal angle, the worm gear engages by means of an eccentric, one part of which is located on the worm and the other part on the worm gear box, and when the handle is turned, the worm enters and disengages, which allows you to quickly set the inclinometer in the right position.

In the prototype, for example, when installing a heavy device in a worm gear, a gear wheel can be broken. In the inventive design, the brake 60 and counterweights 10 are installed on the shaft ends, which provide for the installation of heavy appliances and relieve the load from the gear.

Claims (11)

1. Installation for calibrating and calibrating inclinometers, comprising a stand in the form of a plate and two vertical racks, a base platform with attachment points to a stationary base, a second platform with cantilever axles that are connected through rotational supports to the upper parts of the vertical struts, an attachment unit for the inclinometer body in the form of a cylinder with steering wheels and collet clamps, and the steering wheels are threaded to the cylinder, three worm gear disks, the first of which is horizontal, the second disk is rigidly connected to the inclinometer case mounting unit’s lindrom, the third disk is mounted in a vertical plane, and there are three coarse angle dials parallel to the disks, three noniuses of the exact angle counting directly connected to them, three spring-loaded worms connected by worm gears with the disks, while the third disk has an anti-aircraft limb angle, the scale of which is located on the outside of the vertical rack, is rigidly connected with one of the axles of the third platform, the nonius of the exact measurement of the azimuthal angle is rigidly fixed to the second platform, nonius of accurate measurement of the zenith angle - on the corresponding vertical stand, nonius of exact measurement of the angle of sight - on the third platform, characterized in that the stand in the form of a plate is made in the form of a gear wheel, which is also the first worm gear located horizontally on the base of the platform on sleeve plain bearings with locking by means of a spring-loaded disk with adjusting screws, the vertical posts are rigidly fixed to the first disk of the worm gear in the form of a memory gear wheels, cantilever axles with rotation bearings made in the form of sliding bearings, are equipped with counterweights with adjustable weights having collet clamps at the ends, while one of the cantilever axles is equipped with a rotation lock in the form of a collet clamp with an eccentric with the possibility of fixation in different positions, node the mounting of the inclinometer case is made in the form of an elongated cylinder with collet clamps at the ends, and mounted on supports in the form of sliding bearings in a box located between the vertical uprights, while worm gears are provided with engaging mechanisms of input and output in the form of pivoting cams latched in two different positions, wherein on both sides of the eccentric stroke fitted with rubber inserts for urging stroke of the worm gear. 2. Installation according to claim 1, characterized in that it is equipped with electric sensors of angular position. 3. Installation according to claim 1, characterized in that it is made with one floating support-axis, having freedom of movement along its axis relative to one of the uprights. 4. Installation according to claim 1, characterized in that the worm gears are equipped with input and output gearing mechanisms in the form of an squeeze lock. 5. Installation according to claim 1, characterized in that the bearings of the first worm gear disk are made radial-axial. 6. Installation according to claim 1, characterized in that the cantilever axles are provided with radial-axial and radial bearings. 7. Installation according to claim 1, characterized in that the fixation of the attachment point of the inclinometer body in the box is performed using a folding locking stop. 8. Installation according to claim 1, characterized in that the counterweights to the free ends of the cantilever axles are attached with clamps. 9. Installation according to claim 1, characterized in that the third limb of rough reading of the angles is mounted on the cantilever axis using a clamp. 10. Installation according to claim 1, characterized in that the said cylinder and box are equipped with radial-axial and axial bearings. 11. Installation according to claim 1, characterized in that the weight of the installation part is made of "non-magnetic" materials.

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