CN111272143B - Tower inclination measuring device and tower - Google Patents
Tower inclination measuring device and tower Download PDFInfo
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- CN111272143B CN111272143B CN202010125780.8A CN202010125780A CN111272143B CN 111272143 B CN111272143 B CN 111272143B CN 202010125780 A CN202010125780 A CN 202010125780A CN 111272143 B CN111272143 B CN 111272143B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
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Abstract
The invention provides a tower inclination measuring device and a tower.A liquid tank with a suspended object is arranged in the tower inclination measuring device, when the tower is inclined, the liquid tank can incline along with the tower, the suspended object generates displacement, a flexible connecting line can generate tension on the suspended object in the displacement process, a connecting shaft rotates under the drive of the tension, the rotating connecting shaft drives a transmission unit to rotate, and the rotating transmission unit drives a sliding part to rotate and is in sliding connection with a resistance module, so that the resistance module generates current; the controller can determine the inclination angle of the tower according to the current generated by the resistance module; thereby the mode that the pulling force that produces in-process that uses the suspended solid integument pulling drove sliding part sliding resistance module measures shaft tower inclination, has improved the rate of accuracy of measuring the shaft tower inclination who obtains greatly.
Description
Technical Field
The invention relates to the technical field of power transmission lines, in particular to a tower inclination measuring device and a tower.
Background
At present, a power transmission line has the characteristics of high voltage level, large transmission capacity, long transmission distance and the like, and the key problem is how to ensure that a tower bearing the power transmission line can safely, stably and reliably run. The inclination of the tower is the main cause of disasters such as tower collapse, line breakage, tripping and the like, and once the disasters occur, the operation of the power grid is lost.
In the related technology, the method for measuring the inclination of the tower is to measure the deviation value for 2 times by adopting a theodolite at the position of which the distance between a transverse line and an along line from the iron tower is more than 1.5 times of the height of the tower, and then calculate and obtain the inclination rate of the tower. But the accuracy of the manual measurement results is low.
Disclosure of Invention
In order to solve the above problems, an object of the embodiments of the present invention is to provide a tower inclination measuring device and a tower.
In a first aspect, an embodiment of the present invention provides a tower inclination measuring device, including: the device comprises a control box, a controller, a current sensor, a liquid box with an opening, a suspended object, a flexible connecting wire, a connecting shaft, a transmission unit, a sliding part, a resistor module, a rotating device and a photovoltaic power supply;
the suspension object is completely soaked in the liquid contained in the liquid tank and is connected with one end of a connecting shaft through a flexible connecting wire, and the other end of the connecting shaft penetrates through the opening of the liquid tank and is in transmission connection with a transmission unit in the control box; when the tower is not inclined, the suspended object is located at a first position in the liquid tank;
in the control box, the transmission unit is connected with the sliding component, the resistance module is connected with the current sensor, and the current sensor is connected with the controller;
the photovoltaic power supply is fixed on a tower, is respectively connected with the controller and the resistance module, and respectively supplies power to the controller and the resistance module;
the control box and the liquid box are fixed on the rotating device and are arranged in the middle of a tower platform of the tower through the rotating device; the rotating device is connected with the controller and can horizontally rotate under the control of the controller;
when the tower inclines, the liquid tank inclines along with the tower, suspended objects in the liquid tank can generate displacement, the suspended objects move to the second position from the first position and reset to the first position from the second position, the flexible connecting line can generate pulling force on the suspended objects in the displacement process, the connecting shaft rotates under the driving of the pulling force, the rotating connecting shaft drives the transmission unit to rotate, the rotating transmission unit drives the sliding part to rotate and is in sliding connection with the resistance module, and the resistance module generates current under the action of electric quantity provided by the photovoltaic power supply;
the current sensor acquires the current generated by the resistance module and sends the generated current to the controller;
the controller is used for calculating a first inclination angle of the tower according to the current sent by the current sensor; controlling the rotating device to rotate horizontally by a first angle, and calculating a second inclination angle of the tower according to the current detected by the current sensor after horizontal rotation; and determining the inclination angle of the tower based on the first inclination angle and the second inclination angle.
In a second aspect, an embodiment of the present invention further provides a tower, including the tower inclination measurement apparatus in the first aspect.
In the solutions provided by the first aspect to the second aspect of the embodiments of the present invention, a liquid tank having a suspended object is disposed in a tower inclination measurement device, when a tower is inclined, the liquid tank may incline along with the tower, the suspended object in the liquid tank may displace, move from a first position to a second position and return from the second position to the first position, in this process, the suspended object may generate a pulling force on a flexible connection line, the connection shaft rotates under the driving of the pulling force, the rotating connection shaft drives the transmission unit to rotate, the rotating transmission unit drives the sliding component to rotate and is in sliding connection with the resistance module, so that the resistance module generates a current under the action of electric quantity provided by the photovoltaic power supply; the current sensor sends the generated current to the controller, and the controller can be used for determining the inclination angle of the tower according to the current sent by the current sensor; with the correlation technique in the manual operation theodolite violently, 2 times measure deviant on being greater than 1.5 times tower high position along the line distance iron tower, and then calculate the mode of the rate of inclination that obtains the shaft tower and compare, the mode that the pulling force that uses the pulling in-process of suspended solid integument to produce drove sliding part sliding resistance module measures shaft tower inclination, make the process of measuring shaft tower inclination need not artifical the participation, can very objectively measure shaft tower inclination, the shaft tower inclination's that obtains rate of accuracy has been improved greatly.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 shows a schematic structural diagram of a mechanical part of a tower inclination measuring device provided by an embodiment of the invention;
fig. 2 shows a schematic structural diagram of a part of threaded rods in a tower inclination measuring device provided by an embodiment of the invention;
fig. 3 is a schematic diagram illustrating an installation position of a tower inclination measuring device according to an embodiment of the present invention;
fig. 4 shows a schematic diagram of a tower inclination measuring device provided in an embodiment of the present invention when the tower inclination measuring device is inclined;
fig. 5 shows a schematic structural diagram of a circuit part of a tower inclination measuring device according to an embodiment of the present invention.
Detailed Description
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
At present, a power transmission line has the characteristics of high voltage level, large transmission capacity, long transmission distance and the like, and how to ensure that a tower bearing the power transmission line can safely, stably and reliably run becomes a critical problem. The inclination of the tower is the main cause of disasters such as tower collapse, line breakage, tripping and the like, and once the disasters occur, the operation of the power grid is lost. In the related technology, the method for measuring the inclination of the tower is to measure the deviation value for 2 times by adopting a theodolite at the position of which the distance between a transverse line and an along line from the iron tower is more than 1.5 times of the height of the tower, and then calculate and obtain the inclination rate of the tower. But the accuracy of the manual measurement results is low.
Based on this, the embodiment provides a tower inclination measuring device and a tower, wherein a liquid tank with a suspended object is arranged in the tower inclination measuring device, when the tower inclines, the liquid tank can incline along with the tower, the suspended object in the liquid tank can generate displacement, the liquid tank can move from a first position to a second position and reset from the second position to the first position, in the process, a flexible connecting line can generate pulling force on the suspended object, the connecting shaft rotates under the driving of the pulling force, the rotating connecting shaft drives the transmission unit to rotate, the rotating transmission unit drives the sliding part to rotate and is in sliding connection with the resistance module, so that the resistance module generates current under the action of electric quantity provided by the photovoltaic power supply; the current sensor sends the generated current to the controller, and the controller can be used for determining the inclination angle of the tower according to the current sent by the current sensor; the mode that the pulling force that produces in-process that uses the suspended solid integument pulling drove sliding part sliding resistance module measures shaft tower inclination, has improved the rate of accuracy of measuring the shaft tower inclination who obtains greatly.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
Examples
Referring to a schematic structural diagram of a mechanical part of a tower inclination measuring device shown in fig. 1, the embodiment provides a tower inclination measuring device, including: a control box (not shown in the figure), a controller (not shown in the figure), a current sensor (not shown in the figure), a liquid box 1 provided with an opening, a suspended object 3, a flexible connecting line 4, a connecting shaft 5, a transmission unit, a sliding part, a resistance module, a rotating device (not shown in the figure) and a photovoltaic power supply (not shown in the figure).
The controller can use any microcontroller and single chip microcomputer which can determine the inclination angle of the tower in the prior art, and the details are not repeated.
In one embodiment, the floating object 3 may be a buoy.
The flexible connecting line 4 can be, but is not limited to: silk threads and nylon threads.
The suspended object 3 is completely soaked in the liquid 2 contained in the liquid box 1 and is connected with one end of a connecting shaft 5 through a flexible connecting wire 4, and the other end of the connecting shaft penetrates through an opening of the liquid box and is in transmission connection with a transmission unit in the control box; wherein the suspended object is located at a first position in the liquid tank when the tower is not tilted.
Various mixed brines can be used for the liquid 2, and in one embodiment, 20% calcium chloride brine can be used for the liquid 2, the freezing point is-17 ℃, and the density of the liquid 2 at 15 ℃ is 1.18 g/ml.
The density of the suspended object 3 should be less than the density of the liquid 2.
Therefore, when the suspended object 3 is in the first position in the liquid tank 1, the buoyancy of the liquid should be equal to the pulling force provided by the flexible connecting lines 4 to the suspended object and the gravity to which the suspended object is subjected, when the suspended object is stationary.
In order to prevent liquid in the liquid tank from leaking, a seal ring 6 may be provided at an opening of the liquid tank 1.
In the control box, the transmission unit is connected with the sliding part, the resistance module is connected with the current sensor, and the current sensor is connected with the controller.
Further, in order to fix the resistance module, the tower inclination measuring device provided in this embodiment further includes: a fixing plate 13 fixed in the control box; the resistance module is fixed on the fixing plate. The fixed plate 13 is an insulating plate.
In one embodiment, the current sensor and the controller may be installed on a back surface of a surface of the fixing plate on which the resistance module is fixed.
The photovoltaic power supply is fixed on a tower, is respectively connected with the controller and the resistance module, and respectively supplies power to the controller and the resistance module.
In one embodiment, the transmission unit includes: a gear 7 and a partially threaded rod 8.
Referring to the schematic structural view of the partially threaded rod shown in fig. 2, the partially threaded rod 8 includes: a threaded portion 80 and a cylindrical portion 82 are integrally formed.
Here, the gear 7 is connected to the other end of the connecting shaft 5, the gear is drivingly connected to the threaded portion 80 of the partial threaded rod 8, and the sliding member extends in a direction perpendicular to the axial direction of the partial threaded rod and is connected to the cylindrical portion 82 of the partial threaded rod 8.
When the partial threaded rod is driven by the gear to rotate, the sliding component is driven to rotate around the axial direction of the partial threaded rod and is connected with the resistor module 11 in a sliding mode.
The control box and the liquid box are fixed on the rotating device and are arranged in the middle of a tower platform of the tower through the rotating device; the rotating device is connected with the controller and can horizontally rotate under the control of the controller. The installation position of the tower inclination measuring device is shown in fig. 3.
In one embodiment, the rotating device may use a rotating pan and tilt head.
In one embodiment, the sliding member may be a sliding sheet, or may be a connection structure of the pointer 9 and the sliding bearing 10 shown in fig. 1.
The sliding sheet, the pointer 9 and the sliding bearing 10 can be made of low-resistance metal materials.
When the sliding member adopts the connection structure of the pointer 9 and the sliding bearing 10 shown in fig. 1, one end of the pointer 9 is connected with the cylindrical portion of the partially threaded rod, and the other end of the pointer 9, which is away from the cylindrical portion of the partially threaded rod, is fixed with the sliding bearing 10.
The sliding bearing 10 and the sliding piece act in concert, and can be slidably connected with the resistance module 11.
As shown in fig. 4, when the tower inclines, the liquid tank 1 inclines along with the tower, the suspended object 3 in the liquid tank generates displacement, moves from the first position to the second position and resets from the second position to the first position, the suspended object generates tension on the flexible connecting line in the displacement process, the connecting shaft rotates under the drive of the tension, the rotating connecting shaft drives the transmission unit to rotate, and the sliding part rotates under the drive of the rotating transmission unit and is in sliding connection with the resistance module, so that the resistance module generates current under the action of the electric quantity provided by the photovoltaic power supply.
Referring to the schematic structural diagram of the circuit part of the tower inclination measuring device shown in fig. 5, the tower inclination measuring device provided in this embodiment may further include: a relay; the resistance module 11 includes: a first arc-shaped resistor strip 202 and a second arc-shaped resistor strip 204 which are respectively connected with one end of the photovoltaic power supply; the first arc-shaped resistor strip and the second arc-shaped resistor strip are symmetrically arranged by taking the initial position of the sliding part as a symmetry axis.
The first arc-shaped resistor strip 202 and the second arc-shaped resistor strip 204 have the same structure and performance.
The initial position refers to a position where the sliding component is located when the tower is not inclined.
The relay may be installed on a back surface of a surface of the fixing plate on which the resistance module is fixed.
The relay, comprising: a relay coil 210, a first normally open contact 206, and a second normally open contact 208.
The other end of the photovoltaic power supply is connected with one end of the relay coil 210, the other end of the relay coil 210 is connected with one end of the first normally-open contact 206, one end of the sliding component and one end of the second normally-open contact 208, the other end of the first normally-open contact 206 is connected with the first arc-shaped resistor strip 202, and the other end of the second normally-open contact 208 is connected with the second arc-shaped resistor strip 204.
When the sliding part is connected with the first arc-shaped resistor strip 202 in a sliding manner, the sliding part slides through the resistor part of the first arc-shaped resistor strip, the sliding part, the relay coil 210 and the photovoltaic power supply to form a closed loop, the relay coil 210 is electrified to control the first normally-open contact 206 and the second normally-open contact 208 to be closed, and the first arc-shaped resistor strip 202 and the second arc-shaped resistor strip 204 generate current under the action of the electric quantity provided by the photovoltaic power supply.
Wherein the resistance portion of the first arc-shaped resistor strip that is not slipped by the sliding member is in a short-circuit state, so that the current comprises: the sliding part slides through a first current generated by the resistor part of the first arc-shaped resistor strip under the action of the electric quantity provided by the photovoltaic power supply and a second current generated by the second arc-shaped resistor strip under the action of the electric quantity provided by the photovoltaic power supply.
Specifically, the transmission relationship between the gear 7 and the partial threaded rod is as follows: the maximum allowable inclination (the offset distance of the tower head/the height of the tower) of the tower with the height of 50 meters in the operation is 10 per mill, when the maximum allowable inclination exceeds 20 per mill, the tower is determined to be in an emergency state, and the inclined tower foundation is adjusted in time.
Through the actual measurement of workers, the maximum inclination designed and displayed by the tower inclination measuring device provided by the embodiment is 30 per thousand, and the maximum inclination is converted into an angle of 1.71 degrees, so that omega can be approximately selected12 deg.. Part of the threaded rod can shift to two directions according to different inclination directions of the tower, and the rotation angle in each of the two directions is omega290 ° is set. The ratio of the rotation angle of the gear 7 to the rotation angle of the partial threaded rod is lambda-omega1：ω2(i.e. gear 7 rotates by ω)1Part of the threaded rod rotating around its own axis by omega2) According to the transmission relation between the partial threaded rod and the gear, the number of teeth of the gear can be calculated to be (1/lambda).
From the above, it can be seen that the tower inclination angle is the same as the angle rotated by the gear 7, and the ω is2And is used for indicating the rotation angle of the partial threaded rod.
Further, according to the ratio of the rotation angle of the gear to the rotation angle of the partial threaded rod, the following relation between the current and the inclination of the tower can be obtained:
if the inclination angle threshold of the tower inclination angle is theta, the rotation angle beta of part of the threaded rods is:
β＝θ/λ。
when the partial threaded rod rotates by the angle beta, the maximum rotation angle alpha of the resistance part of the rotating part sliding through the first arc-shaped resistance strip or the second arc-shaped resistance strip is alpha-omega2Beta, let λ be the gear rotation angleThe ratio of the rotation angle of a part of the threaded rod to the rotation angle of the first arc-shaped resistor strip is I1The current flowing through the second arc-shaped resistor strip is I2If the first inclination angle is δ, the first inclination angle of the tower can be calculated by the following formula:
the sliding connection between the sliding component and the second arc-shaped resistor strip 204 is similar to the sliding connection between the sliding component and the first arc-shaped resistor strip 202, and is not described herein again.
It can be determined from the above content that the larger the inclination angle of the tower is, the larger the rotation amplitude of the connecting shaft 5 is, the larger the angle through which the connecting shaft drives the lower threaded rod 8 to axially rotate around the partial threaded rod 8 is, and the larger the sliding part slides through the first arc-shaped resistor strip or the resistor part of the first arc-shaped resistor strip. At a certain voltage, the larger the resistance, the smaller the current that passes.
The following conditions can be obtained: in the tower inclination measuring device provided in this embodiment, when the inclination angle of the tower is larger, the current obtained by the current sensor is smaller, that is: the angle of inclination of the tower can be determined with the minimum current.
The current sensor acquires the current generated by the resistance module and transmits the generated current to the controller.
The controller is used for calculating a first inclination angle of the tower according to the current sent by the current sensor; controlling the rotating device to horizontally rotate by a first angle, and calculating a second inclination angle of the tower according to the current detected by the current sensor after horizontal rotation; and determining the inclination angle of the tower based on the first inclination angle and the second inclination angle.
During the process of moving the suspended object from the first position to the second position and resetting the suspended object from the second position to the first position, the resistance value of the resistance part of the sliding part sliding through the first arc-shaped resistance strip is a variable value, and a plurality of different first currents are generated when different resistance parts are connected.
The plurality of first currents comprise different current values.
The controller is used for calculating a first inclination angle of the tower according to the current sent by the current sensor, and comprises the following steps (1) to (5):
(1) receiving a second current and a plurality of first currents sent by the current sensor;
(2) determining a minimum first current from the acquired plurality of first currents;
(3) acquiring a rotation angle of a part of threaded rod, a ratio of a gear rotation angle to a part of threaded rod rotation angle and an inclination angle threshold, and calculating the rotation angle of the part of threaded rod according to the ratio and the inclination angle threshold; the inclination angle threshold is used for representing the inclination angle of the tower from the initial position to the position before the sliding part starts to slide and contacts the first arc-shaped resistor strip;
(4) calculating to obtain the maximum rotation angle of the resistance part of the rotating part sliding through the first arc-shaped resistance strip based on the rotation angle of the partial threaded rod and the rotation angle of the partial threaded rod;
(5) and calculating a first inclination angle of the tower according to the minimum first current, the minimum second current, the rotation angle of the partial threaded rod, the minimum second rotation angle and an inclination angle threshold value.
In the step (1), when the second current and the plurality of first currents sent by the current sensors are received, it is determined that the inclination angle of the tower exceeds an inclination angle threshold value, and the sliding component is in sliding contact with the first arc-shaped resistor strip.
In the step (2), the controller may sort the plurality of first currents in order from large to small, so as to determine a smallest first current from the sorted plurality of first currents.
In the step (3), the rotation angle of the partial threaded rod, the ratio of the gear rotation angle to the partial threaded rod rotation angle, and the inclination angle threshold are cached in the controller.
The maximum rotation angle of the partially threaded rod may be set to any angle between 45 ° and 180 °.
As shown in fig. 5, the angle of rotation of the partially threaded rod is 90 °.
The ratio of the rotation angle of the gear to the rotation angle of part of the threaded rod is obtained by actual measurement of workers.
The tilt angle threshold may be set at any angle value between 0 ° and 2 °.
In one embodiment, the tilt angle threshold may be set at 0.5 °.
The angle of rotation β of the partially threaded rod can be calculated by the following formula:
β＝θ/λ
wherein theta represents the inclination angle threshold of the tower.
In the step (4), the rotation angle α of the rotating part sliding through the resistance part of the first arc-shaped resistance strip is calculated by the following formula:
α＝ω2-β。
wherein, ω is2Indicating the angle of rotation of a portion of the threaded rod.
In the step (5), the first inclination angle of the tower may be calculated by the following formula:
wherein, I1Represents the minimum first current, I2Representing the second current, alpha representing the maximum rotation angle of the rotating part sliding through the resistance part of the first arc-shaped resistance strip, beta representing the rotation angle of a part of the threaded rod, delta representing the first inclination angle, and lambda representing the rotation angle of the gear and the part of the screwThe ratio of the rotation angle of the rasp bar.
When the sliding component is slidably connected to the second arc-shaped resistor strip 204, the process of measuring the inclination of the tower and the calculation process of calculating to obtain the first inclination angle of the tower inclination measuring device provided by the present invention are similar to the above-mentioned process of measuring the inclination of the tower and the calculation process of calculating to obtain the first inclination angle when the sliding component of the tower inclination measuring device is slidably connected to the first arc-shaped resistor strip 202, and are not repeated here.
After the first inclination angle is obtained through calculation, the server can be continuously used for controlling the rotating device to rotate horizontally by the first angle, and calculating a second inclination angle of the tower according to the current detected by the current sensor after horizontal rotation.
Wherein, the first angle may be 90 degrees or 270 degrees.
The process of the controller according to the second inclination angle of the tower detected by the current sensor after the horizontal rotation is similar to the process of measuring the inclination of the tower when the sliding component of the tower inclination measuring device is in sliding connection with the first arc-shaped resistor strip 202 and the calculation process of calculating the first inclination angle, which are not repeated herein.
To determine the tilt angle of the tower, the controller is configured to determine the tilt angle of the tower based on the first tilt angle and the second tilt angle, and includes:
determining the inclination angle of the tower through the following formula:
wherein the content of the first and second substances,
the tower inclination angle is shown, delta represents the first inclination angle, and gamma represents the second inclination angle.
After the inclination angle of the tower is obtained through calculation, the controller can transmit the calculated inclination angle of the tower to a computer or a mobile terminal used by a worker through a mobile communication module or a satellite communication module connected with the controller, so that the worker can timely master the inclination condition of the tower and timely take measures to prevent the occurrence of the condition of pole falling and line breaking.
The embodiment also provides a tower, which comprises the tower inclination measuring device.
In summary, according to the tower inclination measuring device and the tower provided by the embodiment, the liquid tank with the suspended object is arranged in the tower inclination measuring device, when the tower is inclined, the liquid tank can incline along with the tower, the suspended object in the liquid tank can displace, and can move from the first position to the second position and reset from the second position to the first position, in the process, the flexible connecting line can generate tension on the suspended object, the connecting shaft rotates under the drive of the tension, the rotating connecting shaft drives the transmission unit to rotate, the rotating transmission unit drives the sliding part to rotate and is in sliding connection with the resistance module, so that the resistance module generates current under the action of electric quantity provided by the photovoltaic power supply; the current sensor sends the generated current to the controller, and the controller can be used for determining the inclination angle of the tower according to the current sent by the current sensor; with the correlation technique in the manual operation theodolite violently, 2 times measure deviant on being greater than 1.5 times tower high position along the line distance iron tower, and then calculate the mode of the rate of inclination that obtains the shaft tower and compare, the mode that the pulling force that uses the pulling in-process of suspended solid integument to produce drove sliding part sliding resistance module measures shaft tower inclination, make the process of measuring shaft tower inclination need not artifical the participation, can very objectively measure shaft tower inclination, the shaft tower inclination's that obtains rate of accuracy has been improved greatly.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A tower tilt measurement device, comprising: the device comprises a control box, a controller, a current sensor, a liquid box with an opening, a suspended object, a flexible connecting wire, a connecting shaft, a transmission unit, a sliding part, a resistor module, a rotating device and a photovoltaic power supply;
the suspension object is completely soaked in the liquid contained in the liquid tank and is connected with one end of a connecting shaft through a flexible connecting wire, and the other end of the connecting shaft penetrates through the opening of the liquid tank and is in transmission connection with a transmission unit in the control box; when the tower is not inclined, the suspended object is located at a first position in the liquid tank;
in the control box, the transmission unit is connected with the sliding component, the resistance module is connected with the current sensor, and the current sensor is connected with the controller;
the photovoltaic power supply is fixed on a tower, is respectively connected with the controller and the resistance module, and respectively supplies power to the controller and the resistance module;
the control box and the liquid box are fixed on the rotating device and are arranged in the middle of a tower platform of the tower through the rotating device; the rotating device is connected with the controller and can horizontally rotate under the control of the controller;
when the tower inclines, the liquid tank inclines along with the tower, suspended matter in the liquid tank can generate displacement, the suspended matter moves to a second position from the first position and resets to the first position from the second position, the suspended matter can generate pulling force on the flexible connecting line in the displacement process, the connecting shaft rotates under the driving of the pulling force, the rotating connecting shaft drives the transmission unit to rotate, and the sliding part rotates under the driving of the rotating transmission unit and is in sliding connection with the resistance module, so that the resistance module generates current under the action of electric quantity provided by the photovoltaic power supply;
a relay; the resistance module includes: the first arc-shaped resistor strip and the second arc-shaped resistor strip are respectively connected with one end of the photovoltaic power supply; the first arc-shaped resistor strip and the second arc-shaped resistor strip are symmetrically arranged by taking the initial position of the sliding part as a symmetry axis;
the relay includes: the relay comprises a relay coil, a first normally open contact and a second normally open contact;
the other end of the photovoltaic power supply is connected with one end of the relay coil, the other end of the relay coil is respectively connected with one end of the first normally-open contact, one end of the sliding component and one end of the second normally-open contact, the other end of the first normally-open contact is connected with the first arc-shaped resistor strip, and the other end of the second normally-open contact is connected with the second arc-shaped resistor strip;
when the sliding part is connected with the first arc-shaped resistor strip in a sliding mode, the sliding part slides through the resistor part of the first arc-shaped resistor strip, the sliding part, the relay coil and the photovoltaic power supply to form a closed loop, the relay coil is electrified to control the first normally-open contact and the second normally-open contact to be closed, and the first arc-shaped resistor strip and the second arc-shaped resistor strip generate current under the action of electric quantity provided by the photovoltaic power supply;
wherein the current comprises: the sliding part slides through a first current generated by the resistance part of the first arc-shaped resistor strip under the action of the electric quantity provided by the photovoltaic power supply and a second current generated by the second arc-shaped resistor strip under the action of the electric quantity provided by the photovoltaic power supply;
the current sensor acquires the current generated by the resistance module and sends the generated current to the controller;
the controller is configured to calculate a first inclination angle of the tower according to the current sent by the current sensor, and includes:
receiving a second current and a plurality of first currents sent by the current sensor;
determining a minimum first current from the acquired plurality of first currents;
acquiring the rotation angle of a part of threaded rods, the ratio of the rotation angle of the gear to the rotation angle of the part of threaded rods and the inclination angle threshold of a tower, and calculating the rotation angle of the part of threaded rods according to the ratio and the inclination angle threshold; the inclination angle threshold is used for representing the inclination angle of the tower from the initial position to the position before the sliding part starts to slide and contacts the first arc-shaped resistor strip;
calculating the rotation angle of the resistance part of the sliding part sliding through the first arc-shaped resistance strip based on the rotation angle of the partial threaded rod and the rotation angle of the partial threaded rod;
calculating a first inclination angle of the tower according to the minimum first current, the minimum second current, the rotation angle of the partial threaded rod, the minimum second rotation angle and the inclination angle threshold, wherein the calculation comprises the following steps:
calculating a first inclination angle of the tower by the following formula:
wherein, I1Represents the minimum first current, I2The second current is represented, alpha represents the rotation angle of a sliding part sliding through the resistance part of the first arc-shaped resistance strip, beta represents the rotation angle of a partial threaded rod, delta represents a first inclination angle, and lambda represents the ratio of the rotation angle of the gear to the rotation angle of the partial threaded rod;
controlling the rotating device to rotate horizontally by a first angle, and calculating a second inclination angle of the tower according to the current detected by the current sensor after horizontal rotation; determining the inclination angle of the tower based on the first inclination angle and the second inclination angle, wherein the determining comprises:
determining the inclination angle of the tower by the following formula:
wherein the content of the first and second substances,
the inclination angle of the tower is shown, delta represents the first inclination angle, and gamma represents the second inclination angle.
2. The tower inclination measurement device of claim 1, wherein said transmission unit comprises: a gear and a partially threaded rod;
the partially threaded rod includes: a threaded portion and a cylindrical portion formed integrally;
the gear is connected with the other end of the connecting shaft, the gear is in transmission connection with the threaded part of the partial threaded rod, and the sliding component extends in the direction perpendicular to the axial direction of the partial threaded rod and is connected with the cylindrical part of the partial threaded rod;
when the partial threaded rod is driven by the gear to rotate, the sliding component is driven to rotate around the axial direction of the partial threaded rod and is connected with the resistance module in a sliding mode.
3. The tower inclination measurement device of claim 1, further comprising: the fixing plate is fixed in the control box;
the controller, the current sensor, the resistance module and the relay are all fixed on the fixing plate.
4. The tower inclination measurement device of claim 1, further comprising: and the sealing ring is arranged at the opening of the liquid tank.
5. A tower comprising a tower inclination measurement device according to any one of claims 1 to 4.
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