CN206073947U - A kind of cement electric pole buried depth automatic detection device - Google Patents

Abstract

The utility model relates to an automatic detection device for buried depth of cement electric poles, which comprises a measuring probe and a PC, the PC is connected with the measuring probe, the measuring probe includes a pipe body, a sound-transmitting window and a concave mirror, and the sound-transmitting window is arranged on the pipe body , the concave mirror is rotatably connected in the tube body, the tube body is connected with a connecting head, and a piezoelectric ceramic crystal is arranged in the connecting head, and the piezoelectric ceramic crystal generates and sends a high-frequency ultrasonic beam to propagate along the axis of the tube body; the utility model Advantages: The high-frequency ultrasonic beam generated and sent by the piezoelectric ceramic crystal uses the concave mirror to reflect and focus the ultrasonic beam vertically, and then transmits the ultrasonic wave to the hole wall through the ventilated window. Accurate measurement can distinguish cracks with a minimum gap width of 0.1mm, which reduces the work intensity of existing detection, improves the efficiency of detection, improves the reliability of pole installation, and improves the safety of pole use .

Description

An automatic detection device for cement pole buried depth

technical field

The utility model relates to an automatic detection device for the buried depth of cement electric poles.

Background technique

With the rapid development of basic industries such as cement and steel industries, the popularity of ultra-high voltage transmission lines such as 110kV, 220kV and 500kV transmission lines, cement poles are important components in overhead lines, and their safety is directly related to the normal operation of transmission lines. According to the current development trend, my country's cement poles will develop in two directions: super-length, high-strength and decorative. Traditionally, the structure of cement poles has been introduced, and there are defects such as insufficient steel bars, uneven distribution, and corrosion. Affected by its own conditions and the field environment, it is necessary to carry out real-time detection of the hole wall of the buried depth of the cement pole. The existing detection method needs to be manually detected, the detection work is intensive, the detection efficiency is low, and the quality of the detection is unstable. Data storage cannot be realized.

Utility model content

The technical problem to be solved by the utility model is to provide an automatic detection device for the buried depth of cement electric poles, so as to solve the problem of low working efficiency of the existing cement electric pole buried depth detection.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions: an automatic detection device for cement pole burial depth, including a measuring probe and a PC, the PC is connected to the measuring probe, and the measuring probe includes a pipe body, a sound-permeable Window and concave mirror, the sound-transmitting window is set on the tube body, the concave mirror is rotatably connected in the tube body, the tube body is connected with a connector, and a piezoelectric ceramic crystal is installed in the connector, and the piezoelectric ceramic crystal generates and sends high-frequency ultrasonic waves The beam propagates along the axis of the tube body, and after being vertically reflected and focused by the concave mirror, the ultrasonic wave is transmitted to the hole wall through the sound-transmitting window. The piezoelectric ceramic crystal receives the ultrasonic wave reflected by the hole wall and records the amplitude and propagation time of the ultrasonic wave, and The amplitude and propagation time of the recorded ultrasonic waves are converted into digital signals, and the digital signals generate characteristic images of the hole wall through a PC.

Preferably, a three-axis magnetometer is installed in the tube body, and the three-axis magnetometer records the magnetic coordinates of each scanning point of the hole wall and orients the image of the hole wall, which can realize the orientation of the hole wall image and is convenient for the operator to observe and read.

Preferably, a centralizer and an inclinometer are also provided in the pipe body, the inclinometer records the inclination coordinates of each scanning point on the hole wall and calculates the offset value of the borehole, and the centralizer corrects the angle of the measured structural surface, which can realize the The different structural planes of cracks, rock formations and faults are corrected, and a two-dimensional hole wall expansion image reflecting the characteristics of the hole wall can be formed to the PC.

Preferably, an accelerator is provided in the tube body, which can accelerate and adjust the propagation speed of the ultrasonic beam according to different application occasions.

Preferably, the pipe body is provided with an opening, and the opening is closed by a sound-transmitting window, which is convenient for installation, and can realize a sealed space, so that ultrasonic energy can be accurately emitted to the hole wall.

Preferably, the concave mirror is rotatably connected to the tube body through a motor, the connection is reliable, the concave mirror can be rotated rapidly, and the ultrasonic beam can be focused.

Preferably, the PC is connected to the measuring probe through a cable, and the digital signal is transmitted to the PC through the cable. The cable has a long service life and is convenient for winding and unwinding to control the lifting of the measuring probe. The connection is reliable and the transmission is safe and convenient.

Preferably, a winch is provided on the cable, the cable is wound on the winch, and a controller is connected to the winch, and the controller controls the winch to rewind the cable to drive the measurement probe to rise, and the controller controls the winch to unwind the cable to drive the measurement probe It can adapt to the burial depth of mud poles at different depths, has good practical performance, and can quickly realize the winding and unwinding of cables.

Preferably, the winch is also provided with a tripod, the tripod is detachably connected to the winch, the tripod is provided with a guide wheel, and the cable is guided to rise and fall through the guide wheel, which can ensure the stability when the measuring probe rises and falls, and ensure the reliability of the detection To prevent the damage of the measuring probe, the tripod and the winch can be detachably connected, which can adapt to different working occasions and has good use effect.

Preferably, the PC is connected with a data acquisition memory and a printer, which can realize data storage and facilitate subsequent management. The printer can print the characteristic image of the hole wall, which is convenient for operators to analyze and read.

In summary, the utility model has the following advantages: 1. The high-frequency ultrasonic beam generated and sent by the piezoelectric ceramic crystal uses a concave mirror to carry out vertical reflection focusing on the ultrasonic beam, and then transmits ultrasonic waves to the hole wall through the air-permeable window. The principle of automatic, fast and accurate measurement of rock formation cracks on the hole wall can distinguish cracks with a minimum gap width of 0.1mm, which reduces the work intensity of existing detection, improves the work efficiency of detection, and improves the installation of electric poles. Reliability, improving the safety of pole use;

2. The ultrasonic wave reflected by the hole wall returns to the piezoelectric ceramic crystal to record the amplitude and propagation time of the ultrasonic wave and convert it into a digital signal. The digital signal generates a characteristic image of the hole wall through a PC, which is convenient for the operator to read and observe ;

3. The concave mirror and the tube body are arranged to be rotationally connected, which is conducive to the vertical reflection of the ultrasonic beam on the concave mirror to achieve the best focusing effect;

4. The setting of the PC can not only realize the display of digital signals, but also realize the preservation and processing of characteristic images, and realize the automatic management of information.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the structural representation of a kind of cement electric pole buried depth automatic detection device of the utility model;

Fig. 2 is the structural representation of measuring probe of the present utility model;

Fig. 3 is a structural schematic diagram of the ultrasonic transmitting path of the present invention.

detailed description

As shown in Fig. 1, Fig. 2 and Fig. 3, a cement pole buried depth automatic detection device includes a measuring probe 1 and a PC machine 2, the PC machine 2 is connected with the measuring probe 1, and the measuring probe 1 includes a pipe body 11, a transparent The acoustic window 12 and the concave mirror 13, the acoustic window 12 is a low-density resin, the acoustic window 12 is arranged on the pipe body 11, the concave mirror 13 is rotatably connected in the pipe body 11, the pipe body 11 is connected with a connector 19, connected The piezoelectric ceramic crystal 10 is installed inside the head 19. The piezoelectric ceramic crystal 10 generates and transmits a high-frequency ultrasonic beam that propagates along the axis of the tube body 11, and is vertically reflected and focused by the concave mirror 13 and emitted to the hole wall through the sound-transmitting window 12. Ultrasound, the piezoelectric ceramic crystal 10 receives the ultrasonic wave reflected by the hole wall and records the amplitude and propagation time of the ultrasonic wave, and converts the recorded ultrasonic amplitude and propagation time into a digital signal, and the digital signal generates the characteristics of the hole wall through the PC 2 Image, the length of the measuring probe is 246cm, the diameter is 40mm, the weight is 7.4kg, the maximum withstand pressure is 16000kPa, the working temperature is 0-70℃, the emission frequency of the piezoelectric ceramic crystal is 1.4MHz, and the ultrasonic beam emitted by the piezoelectric ceramic crystal The width is 3×3mm.

The tube body 11 is provided with a three-axis magnetometer 14. The accuracy of the three-axis magnetometer 14 is 5%. The three-axis magnetometer 14 records the magnetic coordinates of each scanning point on the hole wall and orients the hole wall image to realize the hole wall image. Orientation is convenient for operators to observe and read. There are also centralizers 15 and inclinometers 16 inside the pipe body 11. The three-axis magnetometer and inclinometer 16 measure the diameter of the borehole from 60 to 300 mm. The inclinometer 16 records the hole wall. The tilt coordinates of each scanning point and the offset value of the borehole are calculated. The centralizer 15 corrects the angle of the measured structural plane, which can realize the correction of different structural planes of cracks, rock formations and faults, and can form a reflection to the PC. The two-dimensional hole wall expansion image of the hole wall characteristics, the tube body 11 is provided with an accelerator 17, which can accelerate and adjust the propagation speed of the ultrasonic beam according to different applications, the tube body 11 is provided with an opening, and the opening is covered by a sound-transmitting window 12 Closed, easy to install, and can realize a sealed space, so that the ultrasonic wave can be accurately transmitted to the hole wall. The concave mirror 13 is connected to the pipe body 11 through the rotation of the motor 18, and the connection is reliable, which can realize the rapid rotation of the concave mirror and ensure the ultrasonic beam. focus.

The PC 2 is connected to the measuring probe 1 through the cable 3, and the digital signal is transmitted to the PC 2 through the cable 3. The cable has a long service life and is convenient for winding and unwinding to control the lifting of the measuring probe. The connection is reliable and the transmission is safe and convenient. A winch 4 is provided, the cable 3 is wound on the winch 4, and a controller 41 is connected to the winch 4, and the winch 4 is controlled by the controller 41 to wind up the cable to drive the measuring probe 1 to rise, and the winch 4 is controlled by the controller 41 to rewind the cable. The unwinding drives the measuring probe 1 down, which can adapt to the burial depth of mud poles of different depths, has good practical performance, and can quickly realize the winding and unwinding of the cable. Disassemble the connection, the tripod 5 is provided with a guide wheel 51, and the cable 3 is guided to rise and fall through the guide wheel 51, which can ensure the stability of the measuring probe when it rises and falls, ensure the reliability of the detection, and prevent the damage of the measuring probe. The frame and the winch are detachably connected, which can be adapted to different working occasions and has good use effect.

The PC 2 is connected with a data acquisition memory 6 and a printer 7, the data acquisition memory 6 is connected with the controller 41, the data acquisition memory 6 is connected with the PC 2 through a data line, and the PC 2 is a notebook computer, which can realize data storage. To facilitate subsequent management, the printer can print the characteristic image of the hole wall, which is convenient for the operator to analyze and read.

During use, the tripod 5 is placed in the buried depth of the electric pole, by setting the parameters of the buried deep of the electric pole in the controller 41, then the winch 4 is controlled by the controller 41 to unwind the cable 3, so that the measuring probe 1 is placed on the electric pole. The rod automatically descends within the buried depth, and the piezoelectric ceramic crystal 10 generates and sends a high-frequency ultrasonic beam to propagate along the axis of the tube body 11, and after being vertically reflected and focused by the concave mirror 13, the ultrasonic wave is emitted to the hole wall through the sound-transmitting window 12. The ceramic crystal 10 receives the ultrasonic wave reflected by the hole wall, and realizes the automatic, fast and accurate measurement of the rock cracks in the hole wall, and the ultrasonic wave reflected by the hole wall returns to the piezoelectric ceramic crystal, realizing the control of the amplitude and propagation time of the ultrasonic wave Record and convert into digital signals, the digital signals are transmitted to the PC through the cable 3, and generate the characteristic image of the hole wall, the three-axis magnetometer 14 records the magnetic coordinates of each scanning point of the hole wall and orients the hole wall image; the inclinometer 16 records the inclination coordinates of each scanning point on the hole wall and calculates the offset value of the drilled hole. The centralizer 15 corrects the angle of the measured structural surface, and finally forms a two-dimensional hole wall unfolded image reflecting the characteristics of the hole wall. The characteristic image Storage through data acquisition memory or printing and storage by printer.

In addition to the above-mentioned preferred embodiment, the utility model also has other implementation modes, those skilled in the art can make various changes and deformations according to the utility model, as long as they do not depart from the spirit of the utility model, all should belong to the appended rights of the utility model The scope defined by the requirement.

Claims (10)

1. a kind of cement electric pole buried depth automatic detection device, it is characterised in that：Including measuring probe (1) and PC (2), PC (2) it is connected with measuring probe (1), measuring probe (1) includes body (11), sound transmitting window (12) and concave mirror (13), sound transmitting window (12) it is arranged on body (11), concave mirror (13) is rotatably connected in body (11), and body is connected with union joint on (11) (19), piezoceramics crystal (10) is provided with union joint (19), piezoceramics crystal (10) is produced and sends high-frequency ultrasonic beam Propagate along the axle center of body (11), and it is super to hole wall transmitting by sound transmitting window (12) after by concave mirror (13), vertically reflection is focused on Sound wave, records amplitude and the propagation time of ultrasound wave after the ultrasound wave that piezoceramics crystal (10) is returned after receiving hole wall reflection, And the amplitude of the ultrasound wave of record and propagation time are converted into into digital signal, digital signal generates hole wall by PC (2) Characteristic image.

2. a kind of cement electric pole buried depth automatic detection device according to claim 1, it is characterised in that：Set in body (11) Have three axle magnetometer (14), by three axle magnetometer (14) record each scanning element of hole wall magnetic coordinate and hole wall image carried out it is fixed To.

3. a kind of cement electric pole buried depth automatic detection device according to claim 1 and 2, it is characterised in that：Body (11) Centralizer (15) and inclinometer (16) are additionally provided with inside, the tilt coordinates of each scanning element of inclinometer (16) record hole wall simultaneously calculate drilling Deviant, centralizer (15) carries out angle correct to measured structural plane.

4. a kind of cement electric pole buried depth automatic detection device according to claim 3, it is characterised in that：Set in body (11) There is accelerator (17).

5. a kind of cement electric pole buried depth automatic detection device according to claim 1, it is characterised in that：Body is set on (11) There is opening, be open.

6. a kind of cement electric pole buried depth automatic detection device according to claim 1, it is characterised in that：Concave mirror (13) leads to Cross motor (18) to be rotatably connected on body (11).

7. a kind of cement electric pole buried depth automatic detection device according to claim 1, it is characterised in that:PC (2) and survey Amount probe (1) is connected by cable (3), and digital signal is transmitted to PC (2) by cable (3).

8. a kind of cement electric pole buried depth automatic detection device according to claim 7, it is characterised in that:Cable is set on (3) There is winch (4), cable (3) is wrapped on winch (4), and controller (41) is connected with winch (4), controlled by controller (41) Winch (4) carries out winding and drives measuring probe (1) to rise to cable, and controlling winch (4) by controller (41) is carried out to cable Unreel drive measuring probe (1) to decline.

9. a kind of cement electric pole buried depth automatic detection device according to claim 8, it is characterised in that:On winch (4) also Spider (5) is provided with, spider (5) is detachably connected with winch (4), spider (5) is provided with directive wheel (51), cable (3) Realize being oriented to raising and lowering by directive wheel (51).

10. a kind of cement electric pole buried depth automatic detection device according to claim 1, it is characterised in that:PC connects on (2) It is connected to data acquisition memorizer (6) and printer (7).