Broadband response current transformer measuring device

Abstract

The utility model provides a broadband response current transformer measuring device, which belongs to the technical field of power system measurement and comprises a bearing mechanism, a support frame, a first threaded rod rotationally connected to the inner surface of the support frame, and a first internal threaded block in threaded connection to the thread of the first threaded rod. The driving mechanism comprises a fixing frame fixedly installed on the outer surface of the first internal thread block, a second threaded rod rotationally connected to the inner surface of the fixing frame, a second internal thread block in threaded connection to the thread position of the second threaded rod, an adjusting assembly arranged on the outer surface of the second internal thread block, and a current transformer used in cooperation with the driving mechanism. According to the utility model, through mutual cooperation of the bearing mechanism and the driving mechanism, the position, height and angle of the current transformer can be adjusted according to actual requirements, the current transformer can adapt to different measurement scenes, meanwhile, the device can be easily moved or rotated during maintenance, maintenance, calibration or replacement is facilitated, the overall flexibility is improved, and the working efficiency is improved. And the measurement accuracy is also ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electric power system measurement technical field, concretely relates to a kind of wideband response current transformer measuring device. BACKGROUND

[0002] Wideband response current transformer measuring device is mainly related to the current measurement demand in electric power system, with the continuous development and complication of electric power system, the requirement of current measurement equipment is also increasing day by day, in lightning impulse protection, circuit breaker operation, transformer neutral point current monitoring etc. Occasions, and the application of new power electronic equipment, accurate measurement of current containing direct current component to high frequency component is required, which requires that current transformer not only has good performance in low frequency band, but also has wideband response capability.

[0003] In prior art, traditional current transformer usually adopts bolted mounting mode, but when equipment needs maintenance or overhaul, since it is firmly fixed in a position, disassembly and reinstallation can be troublesome, in addition, when electric power system layout changes or the position of current transformer needs to be adjusted, fixed mounting mode lacks flexibility, which can limit the movement and redeployment capability of power transformer. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of wideband response current transformer measuring device, to solve the problems presented in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of wideband response current transformer measuring device, comprising

[0007] Bearing mechanism, including support frame, fixed mounting in the sliding rail of the outer surface of the support frame, rotationally connected in the first screw rod of the inner surface of the support frame, screw thread connection in the first screw rod screw thread place's first internal thread block, and fixed mounting in the rotating handle of the first screw rod through end;

[0008] Drive mechanism includes fixed mounting in the fixed frame of the first internal thread block outer surface, rotationally connected in the second screw rod of the fixed frame inner surface, screw thread connection in the second screw rod screw thread place's second internal thread block, fixed mounting in the positioning tip of the fixed frame outer surface both sides, fixed mounting in the knob of the second screw rod through end, and adjusting assembly is set in the second internal thread block outer surface;

[0009] And current transformer used in cooperation with the drive mechanism.

[0010] In a preferred embodiment of this utility model, a bearing sleeve is installed at the connection between the first threaded rod and the support frame for rotational use, and the inner surface of the first internal threaded block slides in contact with the outer surface of the slide rail.

[0011] In a preferred embodiment of this utility model, a bearing sleeve for rotation is installed at the connection between the second threaded rod and the fixed frame, and the inner surface of the second internal threaded block slides in contact with the outer surface of the positioning pin.

[0012] As a preferred embodiment of the present invention, the adjustment assembly includes a fixed plate fixedly installed on the outer surface of the second internal thread block, a limiting groove formed on the outer surface of the fixed plate, and a fixing ring fixedly installed on the outer surface of the fixed plate.

[0013] As a preferred embodiment of this utility model, the adjustment assembly further includes a spring fixedly installed on the inner surface of the fixed ring, a limiting block fixedly installed on the other end of the spring, a limiting wheel rotatably connected to the outer surface of the fixed disk, a turntable fixedly installed on the outer surface of the limiting wheel, and a limiting post fixedly installed on the outer surface of the turntable and used with the limiting groove.

[0014] In a preferred embodiment of this utility model, the inner surface of the limiting groove is in sliding contact with the outer surface of the limiting post, and the outer surface of the limiting block is in elastic contact with the outer surface of the limiting wheel.

[0015] In a preferred embodiment of this utility model, a bearing sleeve for rotation is installed at the connection between the limiting wheel and the fixed disk, and the outer surface of the turntable is fixedly connected to the outer surface of the current transformer.

[0016] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the bearing mechanism and the driving mechanism, not only can the position, height and angle of the current transformer be adjusted according to actual needs, adapting to different measurement scenarios, but also the equipment can be easily moved or rotated during maintenance, facilitating maintenance, calibration or replacement, improving overall flexibility, and ensuring measurement accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Fig. 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0020] Fig. 3 This is a partial structural diagram of the adjustment component of this utility model;

[0021] Fig. 4 This is a schematic diagram of a partial structure of the adjustment component of this utility model from another perspective.

[0022] In the diagram: 100, bearing mechanism; 101, support frame; 102, slide rail; 103, first threaded rod; 104, first internal threaded block; 105, throttle; 200, drive mechanism; 201, fixed frame; 202, second threaded rod; 203, second internal threaded block; 204, positioning pin; 205, knob; 206, adjusting assembly; 206a, fixed plate; 206b, limiting groove; 206c, fixed ring; 206d, spring; 206e, limiting block; 206f, limiting wheel; 206g, turntable; 206h, limiting post; 300, current transformer. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example

[0027] Reference Figs. 1-4 This is an embodiment of the present invention, which provides a wideband response current transformer measuring device, comprising:

[0028] The bearing mechanism 100 includes a support frame 101, a slide rail 102 fixedly installed on the outer surface of the support frame 101, a first threaded rod 103 rotatably connected to the inner surface of the support frame 101, a first internal threaded block 104 threadedly connected to the thread of the first threaded rod 103, and a throttle 105 fixedly installed on the through end of the first threaded rod 103.

[0029] The drive mechanism 200 includes a fixed frame 201 fixedly installed on the outer surface of the first internal threaded block 104, a second threaded rod 202 rotatably connected to the inner surface of the fixed frame 201, a second internal threaded block 203 threadedly connected to the thread of the second threaded rod 202, positioning pins 204 fixedly installed on both sides of the outer surface of the fixed frame 201, a knob 205 fixedly installed on the through end of the second threaded rod 202, and an adjustment component 206 provided on the outer surface of the second internal threaded block 203.

[0030] And a current transformer 300 used in conjunction with the drive mechanism 200.

[0031] The first threaded rod 103 can be rotated by turning the throttle 105, and the first internal threaded block 104 can move smoothly up and down along the slide rail 102, thereby realizing the height adjustment of the first internal threaded block 104.

[0032] Specifically, a bearing sleeve is installed at the connection between the first threaded rod 103 and the support frame 101 for use in rotation, and the inner surface of the first internal threaded block 104 slides in contact with the outer surface of the slide rail 102.

[0033] Furthermore, a bearing sleeve for rotation is installed at the connection between the second threaded rod 202 and the fixed frame 201, and the inner surface of the second internal threaded block 203 slides in contact with the outer surface of the positioning pin 204.

[0034] The second threaded rod 202 can be rotated by turning the knob 205, which enables the second internal threaded block 203 to move in the left and right directions. The positioning pin 204 provides guiding support for the second internal threaded block 203, ensuring stability during the movement.

[0035] Furthermore, the adjustment assembly 206 includes a fixed plate 206a fixedly installed on the outer surface of the second internal thread block 203, a limiting groove 206b formed on the outer surface of the fixed plate 206a, and a fixing ring 206c fixedly installed on the outer surface of the fixed plate 206a.

[0036] Furthermore, the adjustment assembly 206 also includes a spring 206d fixedly installed on the inner surface of the fixed ring 206c, a limiting block 206e fixedly installed on the other end of the spring 206d, a limiting wheel 206f rotatably connected to the outer surface of the fixed disk 206a, a turntable 206g fixedly installed on the outer surface of the limiting wheel 206f, and a limiting post 206h fixedly installed on the outer surface of the turntable 206g and used with the limiting groove 206b.

[0037] Preferably, the inner surface of the limiting groove 206b slides in contact with the outer surface of the limiting post 206h, and the outer surface of the limiting block 206e elastically contacts the outer surface of the limiting wheel 206f.

[0038] It should be noted that a bearing sleeve for rotation is installed at the connection between the limit wheel 206f and the fixed disk 206a, and the outer surface of the turntable 206g is fixedly connected to the outer surface of the current transformer 300.

[0039] The current transformer 300 can be adjusted in multiple directions by rotating the turntable 206g, so that the current transformer 300 can be precisely adjusted to the required angle position. The cooperation between the spring 206d and the limit block 206e provides effective support and limit function for the limit wheel 206f.

[0040] In use, rotating the throttle 105 rotates the first threaded rod 103, causing the first internal threaded block 104 to be threadedly connected to the first threaded rod 103, with its inner surface sliding in contact with the outer surface of the slide rail 102. As the first threaded rod 103 rotates, the first internal threaded block 104 can move smoothly up and down along the slide rail 102 according to the thread direction, achieving height adjustment. Simultaneously, the fixing frame 201 is fixed to the first internal threaded block 104 and moves with it. Rotating the knob 205 rotates the second threaded rod 202, causing the second internal threaded block 203 to move smoothly in a direction perpendicular to the first threaded rod 103, achieving... The left and right position adjustment, the positioning pin 204 provides guiding support for the second internal thread block 203 to ensure stability during movement. Then rotate the turntable 206g, the limiting post 206h slides along the limiting groove 206b on the fixed plate 206a, thereby driving the current transformer 300 to perform multi-directional angle adjustment, so that it can be accurately adjusted to the required angle position. The cooperation of the spring 206d and the limiting block 206e provides effective support and limiting function for the limiting wheel 206f. The elasticity of the spring 206d ensures that the limiting block 206e always maintains appropriate contact pressure with the limiting wheel 206f, avoiding position deviation caused by over-adjustment.

[0041] In summary, through the cooperation of the bearing mechanism 100 and the driving mechanism 200, the position, height and angle of the current transformer 300 can be adjusted according to actual needs to adapt to different measurement scenarios. At the same time, the equipment can be easily moved or rotated during maintenance, which facilitates maintenance, calibration or replacement, improves overall flexibility and ensures measurement accuracy.

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A broadband response current transformer measuring device, characterized in that: include, The bearing mechanism (100) includes a support frame (101), a slide rail (102) fixedly installed on the outer surface of the support frame (101), a first threaded rod (103) rotatably connected to the inner surface of the support frame (101), a first internal threaded block (104) threadedly connected to the thread of the first threaded rod (103), and a throttle (105) fixedly installed on the through end of the first threaded rod (103). The drive mechanism (200) includes a fixed frame (201) fixedly installed on the outer surface of the first internal threaded block (104), a second threaded rod (202) rotatably connected to the inner surface of the fixed frame (201), a second internal threaded block (203) threadedly connected to the thread of the second threaded rod (202), positioning pins (204) fixedly installed on both sides of the outer surface of the fixed frame (201), a knob (205) fixedly installed on the through end of the second threaded rod (202), and an adjustment assembly (206) provided on the outer surface of the second internal threaded block (203); And a current transformer (300) used in conjunction with the drive mechanism (200).

2. The broadband response current transformer measuring device according to claim 1, characterized in that: A bearing sleeve is installed at the connection between the first threaded rod (103) and the support frame (101) for rotational use, and the inner surface of the first internal threaded block (104) slides in contact with the outer surface of the slide rail (102).

3. The broadband response current transformer measuring device according to claim 2, characterized in that: A bearing sleeve for rotation is installed at the connection between the second threaded rod (202) and the fixed frame (201), and the inner surface of the second internal threaded block (203) slides in contact with the outer surface of the positioning pin (204).

4. The broadband response current transformer measuring device according to claim 3, characterized in that: The adjustment assembly (206) includes a fixed plate (206a) fixedly installed on the outer surface of the second internal thread block (203), a limiting groove (206b) formed on the outer surface of the fixed plate (206a), and a fixing ring (206c) fixedly installed on the outer surface of the fixed plate (206a).

5. The broadband response current transformer measuring device according to claim 4, characterized in that: The adjustment assembly (206) further includes a spring (206d) fixedly installed on the inner surface of the fixed ring (206c), a limiting block (206e) fixedly installed on the other end of the spring (206d), a limiting wheel (206f) rotatably connected to the outer surface of the fixed disk (206a), a turntable (206g) fixedly installed on the outer surface of the limiting wheel (206f), and a limiting post (206h) fixedly installed on the outer surface of the turntable (206g) and used with the limiting groove (206b).

6. The broadband response current transformer measuring device according to claim 5, characterized in that: The inner surface of the limiting groove (206b) slides in contact with the outer surface of the limiting post (206h), and the outer surface of the limiting block (206e) elastically contacts the outer surface of the limiting wheel (206f).

7. The broadband response current transformer measuring device according to claim 6, characterized in that: A bearing sleeve for rotation is installed at the connection between the limiting wheel (206f) and the fixed disk (206a), and the outer surface of the turntable (206g) is fixedly connected to the outer surface of the current transformer (300).

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