A contact electrode for high voltage nuclear phase instrument

Abstract

The invention discloses a contact electrode for a high-voltage phase analyzer, which relates to the field of power phase analysis, and comprises a connection chamber, a contact electrode and a test rod; the contact electrode is fixed at one end of the connection chamber, and the other end of the connection chamber is disassembled and provided with a test rod, and the contact electrode is used to be clamped and fixed on a high-voltage line; the connection chamber cooperates with the test rod to drive the contact electrode; a first docking buckle is provided at one end of the test rod; specifically, the contact electrode comprises: a shell, an adjustment rod and an adaptive adjustment component; the shell is fixed on the connection chamber and is connected to the connection chamber; the adjustment rod is installed in the shell, and controls the adaptive adjustment component when acquiring data of a high-voltage cable; the adaptive adjustment component is fixed at the end of the adjustment rod, and is used to clamp the high-voltage cable and acquire data of the high-voltage cable, and transmit the data to a phase shift terminal.

Description

Technical Field

[0001] The invention relates to the field of electric power phase analysis, in particular to a contact electrode for a high-voltage phase analysis instrument. Background Art

[0002] As my country's economy develops vigorously, the demand for electricity continues to rise, posing more stringent challenges to the expansion of grid capacity and the improvement of operational stability. In the context of building a strong smart grid and promoting green energy transformation, clean energy is accelerating the replacement of traditional fossil energy, prompting the emergence of new substations and the continuous upgrading of existing lines. In order to ensure the safe access of newly built substations and renovated transmission lines to the grid, and to avoid the risk of short circuits caused by phase mismatch during grid connection or ring closing, accurate phase nuclear testing in advance has become an indispensable key step. Such risks may cause damage to electrical equipment at the least, or may shake the stable foundation of the power grid system at the worst, causing serious consequences.

[0003] Given that the stable operation of the power system is the cornerstone of the efficient operation of the power grid, research on improving the reliability of the power grid is increasingly focused on the in-depth application of phase measurement and synchronous measurement technology. In this context, voltage phase verification is not only basic, but also particularly critical. It is directly related to whether the power grid can serve all areas of social economy in the best state. Therefore, strengthening the accuracy and efficiency of voltage phase verification is an important part of ensuring the security of my country's power supply and promoting the green transformation of the energy structure.

[0004] In Chinese invention patent CN109682996A, a test rod for a high-voltage nuclear phase instrument is disclosed. By improving the existing nuclear phase instrument test rod, it becomes an automatically placed structure, thereby making the operation more convenient and faster. At the same time, it reduces the amount of equipment to be carried, facilitating the construction of power engineering personnel. However, there are the following defects:

[0005] When it is necessary to detect the phase and data of high-voltage cables under specific conditions (such as cable tilt, bad weather, etc.), if the contact electrode is not regularly corrected after placement, the contact electrode will slide relative to the high-voltage cable and thus separate from the point to be detected, resulting in inaccurate detection data.

[0006] In view of the above problems, the present invention provides a contact electrode for a high-voltage nuclear phase instrument to solve the above problems. Summary of the invention

[0007] To achieve the above object, the present invention provides the following technical solution: a contact electrode for a high-voltage nuclear phase instrument, comprising: a connecting chamber, a contact electrode, and a test rod;

[0008] The contact electrode is fixed at one end of the connection chamber, and a test rod is detachably provided at the other end of the connection chamber, and the contact electrode is used to be clamped and fixed on the high-voltage line; the connection chamber cooperates with the test rod to drive the contact electrode; a first docking buckle is provided at one end of the test rod;

[0009] Specifically, the contact electrode comprises: a shell, an adjustment rod, and an adaptive adjustment component;

[0010] The shell is fixed on the connecting chamber and is in conduction with the connecting chamber;

[0011] The adjusting rod is installed in the housing and controls the adaptive adjusting component when acquiring data of the high-voltage cable;

[0012] The adaptive adjustment component is fixed at the end of the adjustment rod, and is used to clamp the high-voltage cable and obtain the data of the high-voltage cable, and transmit the data to the nuclear phase shift terminal.

[0013] Further, preferably, a plurality of the adaptive adjustment components are provided, and the adaptive adjustment components are connected and coordinated by a second guide rope.

[0014] Further, preferably, the adjustment rod comprises: a damping rod, an adjustment spring, and a control roller;

[0015] One end of the damping rod is fixed to the housing, and the other end is connected to the adaptive adjustment component;

[0016] The control roller is rotatably arranged at one end of the damping rod close to the housing, and when the control roller rotates, the extension amount of the damping rod is adjusted;

[0017] One end of the adjusting spring is connected to the damping rod, and the other end is connected to the adaptive adjusting component.

[0018] Further, preferably, a first torsion spring is provided on the rotation connection shaft between the damping rod and the control roller.

[0019] Further, preferably, the control roller comprises: a first wire roller, a second wire roller, and a pull rope;

[0020] The first wire roller is rotatably arranged on the damping rod, and extends into the damping rod to coaxially arrange the second wire roller; a second guide rope is wound around the first wire roller;

[0021] One end of the pull rope is connected to the second wire roller, and the other end is connected to the damping rod close to the adaptive adjustment component.

[0022] Further, preferably, the adaptive adjustment component comprises: an arc plate, two clamping plates;

[0023] The arc plate is fixed to the end of the damping rod, and a swivel seat is arranged on the arc plate;

[0024] The two clamping plates are symmetrically rotatably arranged on the rotating seat.

[0025] Further, preferably, a second torsion spring is provided between the clamping plate and the rotating seat.

[0026] Further, preferably, a driving assembly is arranged in the connection compartment, and the driving assembly comprises: a support, a worm, a worm wheel, a second docking buckle, and a first guide rope;

[0027] The support is fixed in the connecting compartment, the worm is rotatably arranged on the support, and a second docking buckle is coaxially fixed on the end of the worm;

[0028] The worm wheel is rotatably disposed in the connecting bin and meshes with the worm; one end of a first guide rope is connected to the worm wheel, and the other end of the first guide rope is connected to the second guide rope.

[0029] Compared with the prior art, the present invention provides a contact electrode for a high-voltage nuclear phase instrument, which has the following beneficial effects:

[0030] In the present invention, when installing the contact electrode, the second guide rope is controlled to control the telescopic length of the adjustment rod by rotating the test rod, so that the adaptive adjustment component can complete the fixed clamping of the high-voltage cable, thereby preventing the contact electrode from sliding due to external force and shifting the test point, thereby improving the accuracy of the test result.

[0031] In the adaptive adjustment component, because the clamping plate is rotatably arranged on the arc plate, it can still perform stable clamping operations when clamping high-voltage cables of different specifications, thereby improving the stability of the contact electrode clamping the high-voltage cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall schematic diagram of a contact electrode for a high-voltage nuclear phase instrument;

[0033] Figure 2 It is a schematic cross-sectional view of the interior of a contact electrode for a high-voltage nuclear phase instrument;

[0034] Figure 3 A schematic diagram of a contact electrode driving assembly mechanism for a high-voltage nuclear phase instrument;

[0035] Figure 4 A schematic diagram of the structure of a contact electrode adjustment rod for a high-voltage nuclear phase instrument;

[0036] Figure 5 The figure is a schematic diagram of the structure of a contact electrode control roller for a high-voltage nuclear phase instrument.

[0037] In the figure: 1, connecting compartment; 11, driving assembly; 111, support; 112, worm; 113, worm wheel;

[0038] 12. Second docking buckle; 13. First guide rope; 2. Contact electrode; 21. Shell; 22. Adjusting rod; 221. Damping rod; 222. Adjusting spring; 223. Control roller; 2231. First line roller; 2232. Second line roller; 2233. Pull rope; 23. Adaptive adjustment component; 231. Arc plate; 232. Clamping plate; 24. Second guide rope; 4. Test rod; 5. First docking buckle. DETAILED DESCRIPTION

[0039] Reference Figures 1 to 5 , the present invention provides a technical solution: a contact electrode for a high-voltage nuclear phase instrument, comprising: a connection chamber 1, a contact electrode 2, and a test rod 4;

[0040] The contact electrode 2 is fixed at one end of the connection chamber 1, and a test rod 4 is detachably provided at the other end of the connection chamber 1. The contact electrode 2 is used to be clamped and fixed on the high-voltage line; the connection chamber 1 cooperates with the test rod 4 to drive the contact electrode 2; a first docking buckle 5 is provided at one end of the test rod 4;

[0041] Specifically, the contact electrode 2 includes: a housing 21, an adjustment rod 22, and an adaptive adjustment component 23;

[0042] The housing 21 is fixed on the connection chamber 1 and is in conduction with the connection chamber 1;

[0043] The adjusting rod 22 is installed in the housing 21, and controls the adaptive adjusting component 23 when acquiring the high-voltage cable data;

[0044] The self-adaptive adjustment component 23 is fixed to the end of the adjustment rod 22, and is used to clamp the high-voltage cable and obtain the high-voltage cable data, and transmit the data to the nuclear phase shift terminal.

[0045] As a preferred embodiment, a plurality of the self-adaptive adjustment components 23 are provided, and the self-adaptive adjustment components 23 are connected and coordinated by a second guide rope 24 .

[0046] When using a phase analyzer to obtain the phase and other data of a high-voltage cable, it is first necessary to use a test rod 4 to place the contact electrode 2 at the test point of the high-voltage cable, thereby transmitting relevant signals to the phase analyzer through the contact electrode 2. The phase analyzer receives the relevant signals and obtains relevant data of the high-voltage cable after processing.

[0047] When the contact electrode 2 is installed using the test rod 4, the test rod 4 is sleeved and rotated to be placed in the connection compartment 1, and connected to it through the first docking buckle 5, and the test rod 4 is lifted so that the contact electrode 2 is sleeved to the point of the high-voltage cable to be tested. After the sleeves of the contact electrode 2 and the high-voltage cable are completed, the test rod 4 is rotated to make the second guide rope 24 control the extension and retraction of the adjustment rod 22. The adjustment rod 22 gradually extends so that the adaptive adjustment component 23 gradually approaches the high-voltage cable, and finally the high-voltage cable is clamped using the adaptive adjustment component 23, thereby preventing the contact electrode 2 from sliding after the test rod 4 is removed, and shifting the point to be tested, effectively improving the accuracy of the detection of various values ​​of the high-voltage cable.

[0048] After the contact electrodes 2 are installed, the test rod 4 is removed, and the above installation steps are repeated to install the remaining contact electrodes 2 .

[0049] After completing the high-voltage cable data detection here, the test rod 4 is connected to the connection compartment 1 for removing the contact electrode 2, and the test rod 4 is rotated in the opposite direction to retract the adjustment rod 22, that is, the adaptive adjustment component 23 moves away from the high-voltage cable to release the clamping state of the high-voltage cable. After the clamping state is released, the contact electrode 2 is removed using the test rod 4.

[0050] As a preferred embodiment, the adjusting rod 22 includes: a damping rod 221, an adjusting spring 222, and a control roller 223;

[0051] One end of the damping rod 221 is fixed to the housing 21, and the other end is connected to the adaptive adjustment component 23;

[0052] The control roller 223 is rotatably provided at one end of the damping rod 221 close to the housing 21, and when the control roller 223 rotates, the extension amount of the damping rod 221 is adjusted;

[0053] One end of the adjustment spring 222 is connected to the damping rod 221 , and the other end is connected to the adaptive adjustment component 23 .

[0054] As a preferred embodiment, the damping rod 221 and the control roller 223 are rotatably connected with a first torsion spring. When the second guide rope 24 is rotated in the reverse direction, the control roller 223 rotates under the action of the first torsion spring so that the second guide rope 24 is always in a tensioned state.

[0055] As a preferred embodiment, the control roller 223 includes: a first line roller 2231, a second line roller 2232, and a pull rope 2233;

[0056] The first wire roller 2231 is rotatably disposed on the damping rod 221 and extends into the damping rod 221 to coaxially dispose the second wire roller 2232; the second guide rope 24 is wound around the first wire roller 2231;

[0057] One end of the pull rope 2233 is connected to the second wire roller 2232 , and the other end is connected to the damping rod 221 close to the adaptive adjustment component 23 .

[0058] It should be noted that when the first wire roller 2231 rotates under the action of the second guide rope 24 , the second wire roller 2232 rotates synchronously, that is, the pull rope 2233 controls the length change of the damping rod 221 .

[0059] When the length of the damping rod 221 changes, the elastic potential energy of the adjusting spring 222 will change, so that the damping rod 221 is always kept in the adjustment state of the pull rope 2233 under the action of the adjusting spring 222 .

[0060] As a preferred embodiment, the self-adaptive adjustment component 23 includes: an arc plate 231, two clamping plates 232;

[0061] The arc plate 231 is fixed to the end of the damping rod 221, and a swivel seat is provided on the arc plate 231;

[0062] The two clamping plates 232 are symmetrically rotatably arranged on the rotating seat.

[0063] As a preferred embodiment, a second torsion spring is provided between the clamping plate 232 and the rotating seat.

[0064] When clamping the high-voltage cable, the clamping plate 232 cooperates with the arc plate 231 to complete the clamping of the high-voltage cable. At the same time, because the clamping plate 232 is rotatably arranged with the arc plate 231, it can still perform a stable clamping operation when clamping high-voltage cables of different specifications, thereby improving the stability of the contact electrode 2 in clamping the high-voltage cable.

[0065] As a preferred embodiment, a driving assembly 11 is arranged in the connection compartment 1, and the driving assembly 11 includes: a support 111, a worm 112, a worm wheel 113, a second docking buckle 12, and a first guide rope 13;

[0066] The support 111 is fixed in the connection chamber 1, the worm 112 is rotatably arranged on the support 111, and a second docking buckle 12 is coaxially fixed to the end of the worm 112;

[0067] The worm wheel 113 is rotatably disposed in the connection chamber 1 and meshes with the worm 112 ; one end of the first guide rope 13 is connected to the worm wheel 113 , and the other end of the first guide rope 13 is connected to the second guide rope 24 .

[0068] It should be noted that the test rod 4 is engaged with the second docking buckle 12 through the first docking buckle 5, so that when the test rod 4 is rotated, the worm 112 rotates synchronously, that is, the worm wheel 113 rotates, thereby performing the line-retracting and releasing operation on the first guide rope 13, and further controlling the state of the second guide rope 24.

[0069] At the same time, after the test rod 4 is removed, the self-locking characteristic of the worm gear is used to keep the contact electrode 2 stably clamped on the high-voltage cable to avoid sliding and affecting its detection data.

[0070] In specific implementation, when installing the contact electrode 2, the first docking buckle 5 is engaged with the second docking buckle 12 through the test rod 4, and the test rod 4 is lifted to make the contact electrode 2 reach the position of the high-voltage cable to be tested. After completing the installation of the contact electrode 2 and the high-voltage cable, the test rod 4 is rotated to make the second guide rope 24 control the extension and retraction of the adjusting rod 22. During the gradual extension process of the adjusting rod 22, the adaptive adjusting component 23 gradually approaches the high-voltage cable, and finally the high-voltage cable is clamped by the adaptive adjusting component 23.

[0071] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A contact electrode for a high voltage nuclear phase instrument, characterized in that: include: A connecting chamber (1), a contact electrode (2), and a test rod (4); The contact electrode (2) is fixed to one end of the connection chamber (1); the other end of the connection chamber (1) is provided with a detachable test rod (4); the contact electrode (2) is used to be clamped and fixed on a high-voltage line; the connection chamber (1) cooperates with the test rod (4) to drive the contact electrode (2); one end of the test rod (4) is provided with a first docking buckle (5); The contact electrode (2) comprises: a housing (21), an adjustment rod (22), and an adaptive adjustment component (23); The housing (21) is fixed on the connection chamber (1) and is connected to the connection chamber (1); The adjusting rod (22) is installed in the housing (21) and controls the adaptive adjusting component (23) when acquiring data of the high-voltage cable; The adaptive adjustment component (23) is fixed to the end of the adjustment rod (22) and is used to clamp the high-voltage cable and obtain high-voltage cable data, and transmit the data to the nuclear phase shift terminal; Wherein, the adjustment rod (22) comprises: a damping rod (221), an adjustment spring (222), and a control roller (223); One end of the damping rod (221) is fixed to the housing (21), and the other end is connected to the adaptive adjustment component (23); The control roller (223) is rotatably provided at one end of the damping rod (221) close to the housing (21), and when the control roller (223) rotates, the elongation of the damping rod (221) is adjusted; One end of the adjustment spring (222) is connected to the damping rod (221), and the other end is connected to the adaptive adjustment component (23); A plurality of the self-adaptive adjustment components (23) are provided, and the self-adaptive adjustment components (23) are connected and coordinated via a second guide rope (24); The self-adaptive adjustment component (23) comprises: an arc plate (231) and two clamping plates (232); The arc plate (231) is fixed to the end of the damping rod (221), and a swivel seat is provided on the arc plate (231); The two clamping plates (232) are symmetrically rotatably arranged on the rotating seat; A driving assembly (11) is arranged in the connection compartment (1), and the driving assembly (11) comprises: a support (111), a worm (112), a worm wheel (113), a second docking buckle (12), and a first guide rope (13); The support (111) is fixed in the connection chamber (1), the worm (112) is rotatably arranged on the support (111), and a second docking buckle (12) is coaxially fixed to the end of the worm (112); The worm wheel (113) is rotatably disposed in the connection chamber (1) and meshes with the worm (112); one end of a first guide rope (13) is connected to the worm wheel (113), and the other end of the first guide rope (13) is connected to the second guide rope (24).

2. A contact electrode for a high voltage nuclear phase instrument according to claim 1, characterized in that: The damping rod (221) and the control roller (223) rotationally connected shaft are provided with a first torsion spring.

3. A contact electrode for a high voltage nuclear phase instrument according to claim 1, characterized in that: The control roller (223) comprises: a first line roller (2231), a second line roller (2232), and a pull rope (2233); The first wire roller (2231) is rotatably arranged on the damping rod (221), and extends into the damping rod (221) to coaxially arrange the second wire roller (2232); a second guide rope (24) is wound around the first wire roller (2231); One end of the pull rope (2233) is connected to the second wire roller (2232), and the other end is connected to the damping rod (221) close to the adaptive adjustment component (23).

4. A contact electrode for a high voltage nuclear phase instrument according to claim 1, characterized in that: A second torsion spring is arranged between the clamping plate (232) and the rotating seat.

Images