CN111880027B - Live-line test system for pole-mounted zinc oxide arrester - Google Patents
Live-line test system for pole-mounted zinc oxide arrester Download PDFInfo
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- CN111880027B CN111880027B CN202010649951.7A CN202010649951A CN111880027B CN 111880027 B CN111880027 B CN 111880027B CN 202010649951 A CN202010649951 A CN 202010649951A CN 111880027 B CN111880027 B CN 111880027B
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- zinc oxide
- oxide arrester
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
Abstract
The invention discloses an electrified test system of a rod-carried zinc oxide arrester, which comprises a telescopic rod, a chuck rod and a test unit, wherein the telescopic rod realizes the telescopic function of the telescopic rod through a stretching device, a shaping hose can enable a chuck piece to stretch to any direction, a conductor rail is connected through a conducting wire, the conductor rail is then electrically connected with a conducting post of the test unit, the test unit is electrically connected with the zinc oxide arrester, and data are displayed on a display screen after the test unit processes the test unit. The device has the advantages that workers can directly perform live-line test on the zinc oxide arrester on the ground through the telescopic rod and the chuck rod without climbing detection, and the risks of falling from high altitude and electric shock are reduced; the test data is directly displayed on the display screen after being processed by the test unit, so that the test data is convenient to carry; the display screen can be turned over, and the testing data on the display screen can be seen by the worker lifting up, so that the worker can conveniently record the data.
Description
Technical Field
The invention relates to the technical field of electrical appliances, in particular to an electrified test system for a rod-carried zinc oxide arrester.
Background
The zinc oxide arrester live test is an important component in equipment state evaluation, and is mainly characterized in that the real-time condition of the zinc oxide arrester in a live working state is quantitatively analyzed by measuring, decomposing and analyzing leakage current, resistive current component and capacitive current component when the zinc oxide arrester works in a normal live working state, so that powerful basis and data support are provided for the power grid company to perform daily maintenance work on the zinc oxide arrester in a transformer substation,
the quality of the zinc oxide arrester is represented by the resistance current, and the traditional measuring method adopts two modes of wire and wireless to measure. When wired measurement is used, several problems often occur:
1. because conventional zinc oxide arrester live tester is not equipped with from taking charging source, every transformer substation needs the overlap joint test power many times, and the power supply box needs the manual work to carry with the test instrument together with the test site. In addition, because the length of the test power cable is limited, the power box needs to be replaced and maintained for multiple times for repeated overlapping;
2. because the height of the zinc oxide and zinc oxide lightning arrester far exceeds the height of personnel, a tester needs to carry an insulating ladder for lapping the lap-joint current signal line, the stair needs to be carried repeatedly in the process, and extra auxiliary personnel need to support the stair in addition during wiring to ensure the safety of the climbing personnel;
3. when the device is used for climbing, the distance between a wiring worker and the zinc oxide arrester body is very short, electric shock can be caused by carelessness, and the risk is extremely high;
4. when getting the PT signal, can only adopt wired cable's mode, because cable length is limited, test arrester in different regions just needs to change PT terminal box wiring, and the repeated wiring leads to the fact the work error easily, causes personnel, equipment potential safety hazard etc..
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the above and/or the problems existing in the existing live-line test system of the rod-carried zinc oxide arrester.
Therefore, the invention aims to solve the problems of how to solve the potential safety hazard of electric shock and complicated operation existing in the live test of the zinc oxide arrester.
In order to solve the technical problems, the invention provides the following technical scheme: the rod-carried zinc oxide arrester live-line test system comprises a telescopic rod, a tension device, a power cable and a power cable, wherein the telescopic rod comprises an outer rod, an inner rod arranged inside the outer rod, and the tension device matched with the outer rod and the inner rod; the clamping head rod is arranged above the telescopic rod and comprises a connecting piece in threaded connection with the inner rod, a third rod in threaded connection with the connecting piece, a shaping hose arranged above the third rod and fixedly connected with the third rod, a clamping head piece arranged above the shaping hose, a tightening device matched with the clamping head piece and a lead wire for connecting the clamping head piece and the connecting piece; and the test unit is arranged on the side face of the telescopic rod and comprises a box body fixed on the side face of the outer rod, a conductive column electrically connected with the conductive rail and a display screen hinged to the upper part of the box body.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the second rod comprises a first conductive end and a second conductive end which are arranged on the inner side surface, and the bottom ends of the first conductive end and the second conductive end are respectively and electrically connected with the two conductive rails; the top end of the first conductive end is attached to a thread surface of the internal thread of the second rod, and the top end of the second conductive end is arranged at the circle center of the second rod; the connecting piece comprises a third conductive end and a fourth conductive end which are arranged on the inner side surface, the bottom of the third conductive end penetrates through the side surface of the connecting piece and is attached to the thread surface at the bottom end of the connecting piece, and the bottom of the fourth conductive end penetrates through the bottom surface of the connecting piece; the top ends of the third conductive end and the fourth conductive end are electrically connected with the two wires respectively, and a threading hole for the tightening device to pass through is formed in the end face of the bottom of the connecting piece.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the first rod is provided with a track groove matched with the conductive rail, the conductive rail is inserted into the track groove, a power taking groove is formed in the side face of the first rod, and the conductive column penetrates through the power taking groove to be in contact with the conductive rail.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the testing unit further comprises a wireless module electrically connected with the conductive column, a signal processing unit electrically connected with the wireless module, a microprocessor electrically connected with the signal processing unit, a power supply for supplying power to the microprocessor, and a memory connected with the microprocessor, and the display screen is connected with the microprocessor.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the outer rod comprises a handle and a rod body, the handle is in threaded connection with the rod body, a first groove is vertically formed in the side surface of the rod body, and the first rod comprises a second groove matched with the first groove; the rod body also comprises a third groove and a fourth groove which are arranged at the upper end and the lower end of the first groove; the stretching device comprises a first pulley arranged in the third groove, a second pulley arranged at the bottom of the rod body, a first steel wire rope and a first rocker fixedly connected with the second pulley, wherein one end of the first steel wire rope is fixedly connected with the bottom end of the inner rod, and the other end of the first steel wire rope penetrates through the first pulley and then is matched with the second pulley.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the rod body further comprises a semicircular groove threading groove vertically arranged in the middle of the first groove, and a first steel wire rope obliquely arranged at the bottom of the first groove and passing through the threading groove and the recess.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the telescopic link still including set up in the outer pole side and with interior pole complex stop device, stop device including be fixed in the articulated seat on pole body side top, with articulated seat articulated button, set up in the spacing post at button top, and connect the pole body with the first spring at button top, the vertical array of first pole side is provided with a plurality of round holes, spacing post with the round hole cooperation.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: one end of the limiting column is provided with an inclined tangent plane, the depth of the round holes positioned at the upper end and the lower end of the first rod is greater than that of the tangent plane, and the depth of the rest round holes is less than that of the tangent plane; the chuck spare including with design hose fixed connection's fixed chuck, and with fixed chuck articulated activity chuck.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the tightening device comprises a second steel wire rope fixedly connected with one end of the movable chuck, a second spring fixedly connected with the fixed chuck and the movable chuck, a third pulley fixed on the side face of the fixed chuck for the second steel wire rope to pass through, a fourth pulley arranged at the bottom of the rod body, and a second rocker fixedly connected with the fourth pulley, wherein the other end of the second steel wire rope passes through the third pulley and is fixed on the fourth pulley.
As a preferred scheme of the live-line test system of the rod-carried zinc oxide arrester, the system comprises the following components: the telescopic rod further comprises a side cover, the side cover is provided with an inserting part, the rod body is provided with a clamping groove matched with the inserting part, and the side cover is inserted right above the first groove.
The invention has the advantages that the worker can directly carry out the live-line test on the zinc oxide arrester on the ground through the telescopic rod and the chuck rod without climbing detection, thereby reducing the risks of falling and electric shock at high altitude; the test data is directly displayed on the display screen after being processed by the test unit, so that the test data is convenient to carry; the display screen can be turned over, and the testing data on the display screen can be seen by the worker lifting up, so that the worker can conveniently record the data.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
figure 1 is a flow chart of the live test system of the rod-carried zinc oxide arrester in example 1.
Figure 2 is a block diagram of the live test system of the rod-carried zinc oxide arrester of example 1.
Figure 3 is an electrical conduction diagram of the live test system for the rod-carried zinc oxide arrester of example 1.
Figure 4 is the inside pole structure diagram of the live test system of the pole-carried zinc oxide arrester in example 1.
Figure 5 is a cross-sectional view of the inside rod of the live test system for the rod-carried zinc oxide arrester of example 1.
Figure 6 is an open view of the display screen of the live test system for the rod-carried zinc oxide arrester of example 1.
Figure 7 is a cross-sectional view of a second rod and connecting rod of the live test system for a zinc oxide on rod arrester of example 1.
Figure 8 is the outer pole structure diagram of the live test system of the zinc oxide arrester on pole in example 1.
Figure 9 is a drawing of the tightening and tensile devices of the live test system for the rod-carried zinc oxide arrester of example 1.
Figure 10 is a diagram of the chuck member and tightening device of the live test system for the rod-carried zinc oxide arrester of example 1.
Figure 11 is a partial cross-sectional view of the outer rod of the live test system for the zinc oxide on rod arrester of example 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 11, as a first embodiment of the present invention, the embodiment provides a system for testing a live line of a rod-mounted zinc oxide arrester, the system for testing a live line of a rod-mounted zinc oxide arrester includes a telescopic rod 100, a chuck rod 200 and a testing unit 300, the chuck rod 200 is disposed above the telescopic rod 100 and is in threaded connection with the telescopic rod 100, and the testing unit 300 is disposed on a side surface of the telescopic rod 100. The telescopic rod 100 achieves the telescopic function through the stretching device 103, the clamp head piece 204 can stretch to any direction through the shaping hose 203, then the clamp head piece 204 is subjected to the opening loosening clamping operation through the tightening device 205 to clamp the zinc oxide lightning arrester, the conducting rail 102a-1 is connected through the conducting wire 206, the conducting rail 102a-1 is electrically connected with the conducting post 302 of the testing unit 300, the electrical connection between the testing unit 300 and the zinc oxide lightning arrester is achieved, and data are displayed on the display screen 303 after the processing of the testing unit 300.
Specifically, the telescopic rod 100 comprises an outer rod 101, an inner rod 102 arranged inside the outer rod 101, and a stretching device 103 matched with the outer rod 101 and the inner rod 102, the inner rod 102 is inserted into the outer rod 101, the inner rod 102 is pulled out through the stretching device 103, the inner rod 102 comprises a first rod 102a and a second rod 102b, a conductive rail 102a-1 is inserted into the first rod 102a, the conductive rail 102a-1 is electrically connected with the second rod 102b, the conductive rail 102a-1 is provided with two vertical long strips, and the two conductive rails 102a-1 are fixed together through non-conductive plastic. The telescopic rod 100 further comprises a limiting device 104 arranged on the side surface of the outer rod 101 and matched with the inner rod 102, the limiting device 104 comprises a hinged seat 104a fixed at the top end of the side surface of the rod body 101b, a button 104b hinged with the hinged seat 104a, a limiting column 104c arranged at the top of the button 104b, and a first spring 104d connected with the rod body 101b and the top of the button 104b, a plurality of round holes 102a-5 are vertically arranged on the side surface of the first rod 102a in an array mode, the limiting column 104c is matched with the round holes 102a-5, the limiting device 104 is arranged at the top of the outer rod 101, and the limiting column 104c is inserted into the round holes 102b through the plurality of round holes 102b arranged on the inner rod 102 to limit the inner rod 102. The first spring 104d is an extension spring, and the button 104b is always pulled by the first spring 104d, so that the section of the button 104b with the position-limiting post 104c is always pressed on the inner rod 102, and thus the position-limiting post 104c is inserted into the round hole 102b when the inner rod 102 is lifted or lowered. One end of the limit post 104c is provided with an inclined tangent plane 104c-1, the depth of the round holes 102b at the upper end and the lower end of the inner rod 102 is greater than the depth of the tangent plane 104c-1, the depth of the other round holes 102b is less than the depth of the tangent plane 104c-1, and the reason for setting the tangent plane 104c-1 is that when the inner rod 102 rises, the tangent plane 104c-1 can make the round holes 102b unable to carry out powerful limit on the limit post 104c, when the first rocker 103d is rotated by a little force, the inner rod 102 can continue to rise, but when the inner rod 102 falls, even if the force is larger, the inner rod 102 can not fall unless the telescopic rod 100 is damaged. The depth of the round hole 102b at the upper end of the inner rod 102 is greater than the depth of the tangent plane 104c-1, so that the arrangement reason is that when the inner rod 102 is folded, the limiting column 104c is inserted into the round hole 102b at the latest upper end, and the inner rod 102 cannot be moved, thereby being convenient to carry and store; the depth of the circular hole 102b at the lower end of the inner pole 102 is greater than the depth of the cut surface 104c-1, which is provided because the maximum displacement of the inner pole 102 is limited to prevent the inner pole 102 from slipping out of the outer pole 101 when the telescopic pole 100 is extended.
The clamping head rod 200 comprises a connecting piece 201 in threaded connection with the inner rod 102, a third rod 202 in threaded connection with the connecting piece 201, a shaping hose 203 which is arranged above the third rod 202 and is fixedly connected with the third rod 202, a clamping head piece 204 which is arranged above the shaping hose 203, a tightening device 205 which is matched with the clamping head piece 204, and a conducting wire 206 which is connected with the clamping head piece 204 and the connecting piece 201, wherein the second rod 102b comprises a first conducting end 102b-1 and a second conducting end 102b-2 which are arranged on the inner side surfaces, and the bottom ends of the first conducting end 102b-1 and the second conducting end 102b-2 are respectively and electrically connected with two conducting rails 102 a-1; the top end of the first conductive end 102b-1 is attached to the thread surface of the internal thread of the second rod 102b, and the top end of the second conductive end 102b-2 is arranged at the center of the second rod 102 b; the connecting piece 201 comprises a third conductive end 201a and a fourth conductive end 201b which are arranged on the inner side surface, the bottom of the third conductive end 201a penetrates through the side surface of the connecting piece 201 and is attached to the thread surface at the bottom end of the connecting piece 201, and the bottom of the fourth conductive end 201b penetrates through the bottom surface of the connecting piece 201; the top ends of the third conductive end 201a and the fourth conductive end 201b are electrically connected with the two wires 206, respectively, a threading hole 201c through which the tightening device 205 passes is formed in the end surface of the bottom of the connecting member 201, the wires 206 are fixed to the top ends of the third conductive end 201a and the fourth conductive end 201b, after the second rod 102b is screwed with the first rod 102a, the first conductive end 102b-1 and the second conductive end 102b-2 can be in contact with the two conductive rails 102a-1, and then the connecting member 201 is in threaded connection with the second rod 102b, so that the first conductive end 102b-1 and the third conductive end 201a are electrically connected, and the second conductive end 102b-2 and the fourth conductive end 201b are electrically connected, and thus electrical conduction can be realized.
The testing unit 300 comprises a box body 301 fixed on the side surface of the outer rod 101, a conductive column 302 electrically connected with the conductive rail 102a-1, a display screen 303 hinged with the upper part of the box body 301, a wireless module 304 electrically connected with the conductive column 302, a signal processing unit 305 electrically connected with the wireless module 304, a microprocessor 306 electrically connected with the signal processing unit 305, a power supply 307 for supplying power to the microprocessor 306, and a memory 308 connected with the microprocessor 306, wherein the display screen 303 is connected with the microprocessor 306. The microprocessor uses a 32-bit ARM microcontroller manufactured by Italian Semiconductor (ST) company, the core of the microcontroller is Cortex-M3, the maximum working frequency is 72MHz, and the chip integrates a timer, CAN, ADC, SPI, I2C, USB, UART and other functions. The system adopts a large-capacity product, and uses a 12-bit ADC inside a microprocessor. The microprocessor and other devices form a complete system, which mainly completes the acquisition of signals (analog-to-digital conversion), and controls the storage, display, signal transmission and other functions of the calculation results. The signal amplification unit amplifies the acquired current or voltage through a resistor. The wireless module 304 is a wireless data transmission chip lower than 1GHz, which is manufactured by NORDIC company in Norway and mainly works in ISM frequency bands of 433MHz, 868MHz and 915 MHz. The chip is provided with functional modules such as a frequency synthesizer, a power amplifier, a crystal oscillator, a modulator and the like, the output power and a communication channel can be configured through a program, and a voltage signal in the system is transmitted to the microprocessor 306 through the wireless module 304. The memory adopts ATMEL AT45DB161D as a flash memory chip with a serial interface, and can work AT 2.5V-2.7V. AT45DB161D supports the RapidS serial interface, and is suitable for high-speed occasions. Voltage and low power applications are coupled to the microprocessor 306 to expand the microprocessor 306 capacity. The display screen 303 adopts DC32240B035_02 which is a basic configuration industrial serial port screen with touch and 3.5 inches resolution of 320 × 240, and is suitable for severe environment, strong magnetic interference, outdoor work and other work occasions. The user MCU can easily realize the functions of text, GUI, picture, animation display, touch control and the like only by one serial port, the matching of the display screen 303 and the box body 301 is similar to that of a flip phone, and after the display screen 303 is turned over by 90 degrees, a worker can look up the display screen 303 on the ground to read data. The power supply 307 is a large-capacity lithium polymer battery, and can continuously operate for about 8 hours after one-time charging. The working power supply adopts ASM1117, provides perfect overcurrent protection and overheat protection functions, and ensures the stability of a chip and a power supply system. Meanwhile, an advanced correction technology is applied in product production, and the accuracy of the output voltage and the accuracy of the reference source are ensured to be within the accuracy range of +/-1%. After the test data is acquired by the clamping device 204, the test data is transmitted to the microprocessor 306, and the microprocessor 306 processes the test data and transmits the processed test data to the display screen 303.
Further, the first rod 102a is provided with a track groove 102a-2 matched with the conductive track 102a-1, the conductive track 102a-1 is inserted into the track groove 102a-2, a power taking groove 102a-3 is arranged on the side surface of the first rod 102a, and the conductive column 302 penetrates through the power taking groove 102a-3 to be in contact with the conductive track 102 a-1.
Further, the outer rod 101 comprises a handle 101a and a rod body 101b, the handle 101a is in threaded connection with the rod body 101b, a first groove 101b-1 is vertically formed in the side surface of the rod body 101b, the inner rod 102 comprises a second groove 102a-4 matched with the first groove 101b-1, the diameter of the handle 101a is slightly larger than that of the rod body 101b, and the first groove 101b-1 is provided for two reasons, namely, the inner rod 102 is limited in order that the inner rod 102 cannot rotate freely after being inserted into the outer rod 101; secondly, in order to facilitate the arrangement of the stretching device 103, the first steel wire rope 103c can be arranged in the first groove 101b-1, so that the space is saved and the appearance is more attractive. The first rod 102a comprises a second groove 102a-4 matched with the first groove 101b-1, and the rod body 101b further comprises a third groove 101b-2 and a fourth groove 101b-3 which are arranged at the upper end and the lower end of the first groove 101 b-1; the stretching device 103 comprises a first pulley 103a arranged in the third groove 101b-2, a second pulley 103b arranged at the bottom of the shaft body 101b, a first steel wire rope 103c, and a first rocker 103d fixedly connected with the second pulley 103b, one end of the first steel wire rope 103c is fixedly connected with the bottom end of the inner rod 102, the other end of the first steel wire rope passes through the first pulley 103a and then is matched with the second pulley 103b, the shaft body 101b further comprises a semicircular groove threading groove 101b-4 vertically arranged at the middle part of the first groove 101b-1, and a depression 101b-5 obliquely arranged at the bottom of the first groove 101b-1, the first steel wire rope 103c passes through the threading groove 101b-4 and the depression 101b-5, and the third groove 101b-2 and the fourth groove 101b-3 are arranged to facilitate the placement and installation of the first pulley 103a and the second pulley 103b, one end of a first steel wire rope 103c is fixed at the bottom end of the inner rod 102, and the other end of the first steel wire rope firstly passes through the first pulley 103a through the wire passing groove 101b-4 and then is wound on the second pulley 103b through the first groove 101b-1 and the recess 101 b-5.
Further, the shaft 101b further comprises a semicircular groove threading groove 101b-4 vertically arranged in the middle of the first groove 101b-1 and a recess 101b-5 obliquely arranged at the bottom of the first groove 101b-1, and the first steel wire rope 103c passes through the threading groove 101b-4 and the recess 101 b-5.
Further, the jaw member 204 includes a fixed jaw 204a fixedly connected to the sizing hose 203, and a movable jaw 204b hinged to the fixed jaw 204a, the tightening device 205 includes a second wire rope 205a fixedly connected to one end of the movable jaw 204b, a second spring 205b fixedly connected to the fixed jaw 204a and the movable jaw 204b, a third pulley 205c fixed to a side surface of the fixed jaw 204a for the second wire rope 205a to pass through, a fourth pulley 205d disposed at a bottom of the shaft 101b, and a second rocker 205e fixedly connected to the fourth pulley 205d, and another end of the second wire rope 205a passes through the third pulley 205c and is fixed to the fourth pulley 205 d. One end of a second steel wire rope 205a is fixedly connected with the movable chuck 204b, the other end of the second steel wire rope passes through a third pulley 205c and then is wound on a fourth pulley 205d through the inside of the sizing hose 203, the inside of the third rod 202 and the inside of the inner rod 102, the second spring 205b is also an extension spring, the movable chuck 204b is meshed with the fixed chuck 204a under the normal state of the chuck piece 204, a second rocker 205e is rotated, the movable chuck 204b is separated from the fixed chuck 204a under the pulling of the second steel wire rope and is placed on the zinc oxide arrester, then the second rocker 205e is loosened, and the chuck piece 204 can be meshed with the zinc oxide arrester.
Furthermore, the engagement surfaces of the fixed chuck 204a and the movable chuck 204b are provided with saw teeth, which are not easily disengaged, the telescopic rod 100 further includes a side cover 105, the side cover 105 is provided with an insertion part 105a, the rod body 101b is provided with a clamping groove 101b-6 matched with the insertion part 105a, the side cover 105 is inserted into the position right above the first groove 101b-1, the insertion part 105a is arranged in the middle of the side cover 105 in the vertical direction, the side cover 105 is inserted into the position right above the first groove 101b-1 from top to bottom through the clamping groove 101b-6, and the position of the clamping groove 101b-6 is limited through the insertion part 105 a.
To sum up, the inner rod 102 is arranged in the outer rod 101, the stretching device 103 controls the lifting of the inner rod 102, the position of the inner rod 102 is limited by the limiting device 104, the top end of the inner rod 102 is in threaded connection with the third rod 202, the upper end of the third rod 202 is fixedly connected with the shaping hose 203, the top end of the shaping hose 203 is fixedly connected with the chuck piece 204, and the chuck piece 204 controls the opening and closing of the chuck piece 204 through the tightening device 205.
When the cable is installed, the conductive rail 102a-1 is firstly inserted into the first rod 102a, the second pulley 103b wound with the first steel wire rope 103c and the fourth pulley 205d wound with the second steel wire rope 205a are fixed at the middle position of the bottom of the rod body 101b, then the first pulley 103a is fixed in the third groove 101b-2, the first steel wire rope 103c penetrates through the first pulley 103a from the first groove 101b-1 upwards, then the first steel wire rope is fixed at the bottom of the inner rod 102, the inner rod 102 is inserted into the outer rod 101, and the first steel wire rope 103c moves along the threading groove 101 b-4. The handle 101a is then mounted on the lower end of the shaft 101b and the second cable 205a is connected to the movable collet 204b along the interior of the inner shaft 102 via the interior of the collet rod 200.
When the device is used, the shaping hose 203 is adjusted to enable the clamping head piece 204 to be in a shape convenient for clamping the zinc oxide arrester, then the button 104b is pressed to enable the limiting column 104c to be moved out of the round hole 102b at the uppermost end, then the first rocker 103d is rotated to enable the inner rod 102 to ascend to a proper position, at the moment, the conductive post 302 is always in contact with the conductive rail 102a-1, once the clamping head piece 204 is meshed with the zinc oxide arrester, test data can be achieved, then the second rocker 205e is rotated to enable the clamping head piece 204 to be opened, and finally the clamping head piece 204 is meshed with the zinc oxide arrester. If the voltage of the zinc oxide arrester needs to be measured, after the clamping head piece 204 is clamped on the zinc oxide arrester, the voltage is transmitted to the signal processing unit 305 through the wireless module 304 in the testing unit 300 to be subjected to signal amplification processing, then an amplified voltage signal is sent to the microprocessor 306, and the amplified voltage signal is processed and converted by the microprocessor 306 and then sent to the display screen 303. If the current of the zinc oxide arrester needs to be measured, after the clamping head piece 204 is clamped on the zinc oxide arrester, the current is directly transmitted to the signal processing unit 305 for signal amplification processing, then an amplified voltage signal is sent to the microprocessor 306, and the amplified voltage signal is processed and converted by the microprocessor 306 and then sent to the display screen 303.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. The utility model provides a pole carries zinc oxide arrester live test system which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the telescopic rod (100) comprises an outer rod (101), an inner rod (102) arranged inside the outer rod (101), and a stretching device (103) matched with the outer rod (101) and the inner rod (102), wherein the inner rod (102) comprises a first rod (102a) and a second rod (102b), a conductive rail (102a-1) is inserted into the first rod (102a), and the conductive rail (102a-1) is electrically connected with the second rod (102 b);
the clamping head rod (200) is arranged above the telescopic rod (100) and comprises a connecting piece (201) in threaded connection with the inner rod (102), a third rod (202) in threaded connection with the connecting piece (201), a shaping hose (203) arranged above the third rod (202) and fixedly connected with the third rod, a clamping head piece (204) arranged above the shaping hose (203), a tightening device (205) matched with the clamping head piece (204), and a lead (206) connecting the clamping head piece (204) and the connecting piece (201); and (c) a second step of,
the testing unit (300) is arranged on the side face of the telescopic rod (100) and comprises a box body (301) fixed on the side face of the outer rod (101), a conductive column (302) electrically connected with the conductive rail (102a-1) and a display screen (303) hinged to the upper portion of the box body (301);
the second rod (102b) comprises a first conductive end (102b-1) and a second conductive end (102b-2) which are arranged on the inner side surface, and the bottom ends of the first conductive end (102b-1) and the second conductive end (102b-2) are respectively and electrically connected with the two conductive rails (102 a-1); the top end of the first conductive end (102b-1) is attached to the thread surface of the internal thread of the second rod (102b), and the top end of the second conductive end (102b-2) is arranged at the circle center of the second rod (102 b); the connecting piece (201) comprises a third conductive end (201a) and a fourth conductive end (201b) which are arranged on the inner side surface, the bottom of the third conductive end (201a) penetrates through the side surface of the connecting piece (201) and is attached to a threaded surface at the bottom end of the connecting piece (201), and the bottom of the fourth conductive end (201b) penetrates through the bottom surface of the connecting piece (201); the top ends of the third conductive end (201a) and the fourth conductive end (201b) are respectively electrically connected with the two wires (206), and a threading hole (201c) for the tightening device (205) to pass through is formed in the end face of the bottom of the connecting piece (201).
2. The live test system of the rod-loaded zinc oxide arrester of claim 1, characterized in that: the first rod (102a) is provided with a track groove (102a-2) matched with the conductive track (102a-1), the conductive track (102a-1) is inserted into the track groove (102a-2), a power taking groove (102a-3) is arranged on the side face of the first rod (102a), and the conductive column (302) penetrates through the power taking groove (102a-3) to be in contact with the conductive track (102 a-1).
3. The electrified test system of a rod-loaded zinc oxide arrester of claim 2, characterized in that: the testing unit (300) further comprises a wireless module (304) electrically connected with the conductive column (302), a signal processing unit (305) electrically connected with the wireless module (304), a microprocessor (306) electrically connected with the signal processing unit (305), a power supply (307) supplying power to the microprocessor (306), and a memory (308) connected with the microprocessor (306), wherein the display screen (303) is connected with the microprocessor (306).
4. The live test system of the rod-loaded zinc oxide arrester of claim 3, wherein: the outer rod (101) comprises a handle (101a) and a rod body (101b), the handle (101a) is in threaded connection with the rod body (101b), and a first groove (101b-1) is vertically formed in the side surface of the rod body (101 b); the first rod (102a) comprises a second groove (102a-4) matched with the first groove (101b-1), and the rod body (101b) further comprises a third groove (101b-2) and a fourth groove (101b-3) which are arranged at the upper end and the lower end of the first groove (101 b-1); the stretching device (103) comprises a first pulley (103a) arranged in the third groove (101b-2), a second pulley (103b) arranged at the bottom of the rod body (101b), a first steel wire rope (103c) and a first rocker (103d) fixedly connected with the second pulley (103b), one end of the first steel wire rope (103c) is fixedly connected with the bottom end of the inner rod (102), and the other end of the first steel wire rope (103c) penetrates through the first pulley (103a) and then is matched with the second pulley (103 b).
5. The live test system of the rod-loaded zinc oxide arrester of claim 4, wherein: the rod body (101b) further comprises a semicircular groove threading groove (101b-4) vertically arranged in the middle of the first groove (101b-1) and a recess (101b-5) obliquely arranged at the bottom of the first groove (101b-1), and the first steel wire rope (103c) penetrates through the threading groove (101b-4) and the recess (101 b-5).
6. The live test system of the rod-loaded zinc oxide arrester of claim 5, wherein: the telescopic rod (100) further comprises a limiting device (104) arranged on the side face of the outer rod (101) and matched with the inner rod (102), the limiting device (104) comprises a hinged seat (104a) fixed at the top end of the side face of the rod body (101b), a button (104b) hinged to the hinged seat (104a), a limiting column (104c) arranged at the top of the button (104b), and a first spring (104d) connected with the rod body (101b) and the top of the button (104b), a plurality of round holes (102a-5) are formed in the vertical array of the side face of the first rod (102a), and the limiting column (104c) is matched with the round holes (102 a-5).
7. The live test system of the rod-loaded zinc oxide arrester of claim 6, wherein: one end of the limiting column (104c) is provided with an inclined tangent plane (104c-1), the depth of the round holes (102a-5) positioned at the upper end and the lower end of the first rod (102a) is greater than that of the tangent plane (104c-1), and the depth of the other round holes (102a-5) is less than that of the tangent plane (104 c-1); the clamping head piece (204) comprises a fixed clamping head (204a) fixedly connected with the shaping hose (203) and a movable clamping head (204b) hinged with the fixed clamping head (204 a).
8. The live test system of the rod-loaded zinc oxide arrester of claim 7, wherein: the tightening device (205) comprises a second steel wire rope (205a) fixedly connected with one end of the movable chuck (204b), a second spring (205b) fixedly connected with the fixed chuck (204a) and the movable chuck (204b), a third pulley (205c) fixed on the side surface of the fixed chuck (204a) and allowing the second steel wire rope (205a) to pass through, a fourth pulley (205d) arranged at the bottom of the rod body (101b), and a second rocker (205e) fixedly connected with the fourth pulley (205d), wherein the other end of the second steel wire rope (205a) passes through the third pulley (205c) and is fixed on the fourth pulley (205 d).
9. The live test system of the rod-loaded zinc oxide arrester of claim 8, wherein: the telescopic rod (100) further comprises a side cover (105), the side cover (105) is provided with an insertion part (105a), the rod body (101b) is provided with a clamping groove (101b-6) matched with the insertion part (105a), and the side cover (105) is inserted right above the first groove (101 b-1).
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| CN202010649951.7A CN111880027B (en) | 2020-07-08 | 2020-07-08 | Live-line test system for pole-mounted zinc oxide arrester |
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