CN221174783U - Short net current measuring device - Google Patents

Abstract

The utility model discloses a short-net current measuring device in the technical field of measuring equipment, which comprises a base, an upright post, a mounting frame and a current measuring instrument, wherein the upright post is positioned in the middle of the top of the base, the mounting frame is positioned on the upper side of the right side wall of the upright post, the current measuring instrument is fixedly connected to the lower side of the left side wall of the upright post, a lifting groove is formed in the right side wall of the upright post, a bidirectional screw is rotationally connected between the top and the bottom of an inner cavity of the lifting groove, and movable sliding blocks are connected to the upper side and the lower side of the outer side wall of the bidirectional screw in a threaded manner.

Description

Short net current measuring device

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to a short-network current measuring device.

Background

The short net is a low-voltage high-current circuit system for supplying power to an electric furnace molten pool by a secondary side of a submerged arc furnace transformer, and a high-current power transmission conductor is composed of a water-cooling flexible cable, a water-cooling conductive cross arm, an electrode holder and the like, the submerged arc furnace converts electric energy into heat energy in the form of resistance heat and arc heat, and belongs to high-energy consumption equipment.

The existing measuring device needs to be installed on the outer side of the submerged arc furnace transformer when measuring the short-net current, the installation process is too complicated, the submerged arc furnace transformers with different specifications need to be measured by measuring equipment with different specifications, the universality is low, the height of the measuring equipment can not be adjusted when measuring the submerged arc furnace transformer, the handheld measuring equipment needs to be manually measured when measuring, the safety is reduced, and the labor intensity of personnel is increased.

Disclosure of utility model

The utility model aims to provide a short-net current measuring device, so as to solve the problems that in the background technology, the existing submerged arc furnace transformers with different specifications are required to be measured by measuring equipment with different specifications, the universality is low, the handheld measuring equipment is required to be measured manually during measurement, the safety is reduced, and the labor intensity of personnel is increased.

In order to achieve the above purpose, the present utility model provides the following technical solutions: short net current measurement device, including base, stand, mounting bracket and current measuring apparatu, the stand is located the top centre department of base, the mounting bracket is located the right side wall upside of stand, current measuring apparatu fixed connection is in the left side wall downside of stand, the right side wall of stand is opened there is the lift groove, rotate between the inner chamber top and the bottom of lift groove and be connected with two-way screw rod, two-way screw rod's lateral wall upper and lower both sides spiro union has the removal slider, remove slider sliding connection and be in the inner chamber of lift groove, the top fixedly connected with inverter motor of stand, inverter motor's power output shaft bottom runs through the stand and extends to the inner chamber of lift groove, and with the top fixed connection of two-way screw rod, the left side wall of mounting bracket with the right side wall fixed connection of removal slider, the inside wall fixedly connected with damping pivot of mounting bracket.

As a further description of the above technical solution:

The electric hydraulic device is characterized in that limiting plates are fixedly connected to the middle of the front side and the rear side of the top of the base, limiting blocks are fixedly connected to the upper sides of the inner side walls of the limiting plates, electric hydraulic cylinders are fixedly connected to the middle of the top of the base, and moving wheels are rotatably connected to the four corners of the bottom of the base.

As a further description of the above technical solution:

The bottom of stand is opened there is hidden groove, the top fixed connection of electronic pneumatic cylinder is in the inner chamber top in hidden groove, the lateral wall downside is opened there is the spacing groove around the stand, stopper sliding connection is in the inner chamber in spacing groove.

As a further description of the above technical solution:

the outer side wall of the damping rotating shaft is rotationally connected with a first bracket, and the right side wall of the first bracket is fixedly connected with a first rogowski coil.

As a further description of the above technical solution:

The outer side wall of the damping rotating shaft is positioned on the front side wall and the rear side wall of the first support, a second support is connected with the outer side wall of the first support in a rotating mode, and a second rogowski coil is fixedly connected to the right side of the outer side wall of the second support.

As a further description of the above technical solution:

The damping rotating shaft is characterized in that a third support is fixedly connected to the outer side wall of the damping rotating shaft and located on the outer side of the second support, and a third rogowski coil is fixedly connected between the right sides of the outer side walls of the third support.

As a further description of the above technical solution:

The current measuring instrument is electrically connected with the first rogowski coil, the second rogowski coil and the third rogowski coil through wires.

Compared with the prior art, the utility model has the beneficial effects that:

1. This short net electric current measuring device can make first support, second support and third support carry out spacing rotation through the damping pivot, select the coil of corresponding size according to the size of hot stove transformer in ore deposit, first support drives first Rogowski coil and rotates under the support of damping pivot, the second support drives second Rogowski coil and rotates, the third support drives the rotation of third Rogowski coil, start inverter motor after accomplishing the selection, inverter motor drives bi-directional screw and rotates, the relative motion is carried out in the lift groove to the slider that moves in bi-directional screw pivoted, cup joint hot stove transformer in ore deposit and carry out measuring current with the Rogowski coil, thereby can make measuring equipment simpler to the measuring process of hot stove transformer in ore deposit of hot stove transformer, simultaneously can be suitable for the hot stove transformer in ore deposit of many specification sizes, the commonality is higher.

2. This short net current measurement device drives the stand through electric hydraulic cylinder and goes up and down, and the stand removes in the spacing inslot through the stopper on the limiting plate when going up and down, and stand location goes up and down, and electric hydraulic cylinder supports the stand through the base to remove the wheel in the bottom of base, can remove whole measuring equipment, thereby can make measuring equipment conveniently remove, also can support, and can carry out altitude mixture control, need not personnel and hold the measurement, also reduce personnel intensity of labour when improving the security.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a short-net current measuring device according to the present utility model;

FIG. 2 shows the short-net current according to the present utility model a schematic diagram of a front cross-sectional structure of the measuring device;

FIG. 3 is a schematic diagram of a right-hand cross-sectional structure of a short-net current measuring device according to the present utility model;

fig. 4 is a schematic diagram of a partial top cross-sectional structure of a short-net current measurement device according to the present utility model.

In the figure: 100. a base; 110. a limiting plate; 111. a limiting block; 120. an electro-hydraulic cylinder; 130. a moving wheel; 200. a column; 210. a lifting groove; 211. a bidirectional screw; 220. moving the slide block; 230. a variable frequency motor; 240. hiding the groove; 250. a limit groove; 300. a mounting frame; 310. damping the rotating shaft; 320. a first bracket; 321. a first rogowski coil; 330. a second bracket; 331. a second rogowski coil; 340. a third bracket; 341. a third rogowski coil; 400. a current measuring instrument.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The utility model provides a short-net current measuring device, which has simpler measuring process, is applicable to submerged arc furnace transformers with multiple specifications and sizes, has higher universality, is convenient to move, can carry out height adjustment, improves the safety, reduces the labor intensity of personnel, and is shown in figures 1-4, and comprises a base 100, a stand column 200, a mounting frame 300 and a current measuring instrument 400;

Referring to fig. 1-4 again, the base 100 is used for installing the upright post 200, the mounting frame 300 and the current measuring instrument 400, a limiting plate 110 is fixedly connected to the middle of the front side and the rear side of the top of the base 100, the limiting plate 110 is used for installing a limiting block 111, the upper side of the inner side wall of the limiting plate 110 is fixedly connected with the limiting block 111, the limiting block 111 is used for being matched with the limiting groove 250 to limit and lift the upright post 200, an electric hydraulic cylinder 120 is fixedly connected to the middle of the top of the base 100, the electric hydraulic cylinder 120 is used for driving the upright post 200 to lift, four corners of the bottom of the base 100 are rotatably connected with a moving wheel 130, the moving wheel 130 is used for moving the base 100, a hidden groove 240 is formed in the bottom of the upright post 200, the hidden groove 240 is used for hiding the electric hydraulic cylinder 120, the top end of the electric hydraulic cylinder 120 is fixedly connected to the top of the inner cavity of the hidden groove 240, the front side wall and the rear side wall of the upright post 200 are provided with the limiting groove 250, the limiting block 111 is slidably connected to the inner cavity of the limiting groove 250, the upright post 200 is driven by the electric hydraulic cylinder 120 to lift the upright post 200, the upright post 200 is lifted through the limiting block 111 on the limiting plate 110 and moves in the limiting groove 250 at the same time, the upright post 200 is positioned and lifted by the upright post 200, the electric hydraulic cylinder 120 is supported by the upright post 200 and lift, and the upright post 200 is supported by the upright and the whole base 100, and is supported by the moving wheel 100, and can move, and can be measured at the bottom and 100;

In conclusion, the measuring equipment can be supported while being moved conveniently, the height adjustment can be performed, the handheld measurement of personnel is not needed, and the labor intensity of the personnel is reduced while the safety is improved.

Referring to fig. 1 to 4 again, a lifting groove 210 is formed in the right side wall of the upright post 200, the lifting groove 210 is used for limiting the movement of the movable sliding block 220, a bidirectional screw rod 211 is rotatably connected between the top and the bottom of the inner cavity of the lifting groove 210, the bidirectional screw rod 211 is used for driving the movable sliding block 220 to move relatively, the upper side and the lower side of the outer side wall of the bidirectional screw rod 211 are in threaded connection with the movable sliding block 220, the movable sliding block 220 is used for mounting the mounting frame 300, the movable sliding block 220 is slidably connected in the inner cavity of the lifting groove 210, the top of the upright post 200 is fixedly connected with a variable frequency motor 230, the variable frequency motor 230 is used for driving the bidirectional screw rod 211 to rotate, the bottom end of a power output shaft of the variable frequency motor 230 penetrates through the upright post 200 and extends to the inner cavity of the lifting groove 210 and is fixedly connected with the top end of the bidirectional screw rod 211, the upright post 200 is positioned in the middle of the top of the base 100, the variable frequency motor 230 is started to drive the bidirectional screw rod 211 to rotate, and meanwhile the movable sliding block 220 moves relatively in the lifting groove 210 to rotate, and a rogowski coil is sleeved on a transformer to measure current;

Referring to fig. 1-4 again, the left side wall of the mounting frame 300 is fixedly connected with the right side wall of the movable slider 220, the mounting frame 300 is used for mounting the damping rotating shaft 310, the inner side wall of the mounting frame 300 is fixedly connected with the damping rotating shaft 310, the damping rotating shaft 310 is used for positioning angular rotation of the first bracket 320, the second bracket 330 and the third bracket 340, the outer side wall of the damping rotating shaft 310 is rotationally connected with the first bracket 320, the right side wall of the first bracket 320 is fixedly connected with the first rogowski coil 321, the outer side wall of the damping rotating shaft 310 is rotationally connected with the second bracket 330, the right side of the outer side wall of the second bracket 330 is fixedly connected with the second rogowski coil 331, the outer side wall of the damping rotating shaft 310 is fixedly connected with the third bracket 340, the third bracket 340 is fixedly connected with the third rogowski coil 341, the mounting frame 300 is positioned on the upper side of the right side wall of the upright post 200, the first bracket 320, the second bracket 330 and the third bracket 340 can be limited to rotate by the damping rotating shaft 310, the first bracket 320 and the third bracket 340 can drive the third bracket 340 to rotate by the first rogowski coil 321 with the size corresponding to the size of the first bracket 320, the second rogowski coil 320 is driven by the third bracket 340 to rotate by the second bracket 320, and the third rogowski coil 341 is driven by the third bracket 340 to rotate by the first bracket 320;

Referring to fig. 1-4 again, the current measuring apparatus 400 is electrically connected to the first rogowski coil 321, the second rogowski coil 331 and the third rogowski coil 341 through wires, the current measuring apparatus 400 is fixedly connected to the lower side of the left side wall of the upright post 200, and the current measuring apparatus 400 is used for controlling the start and stop of the first rogowski coil 321, the second rogowski coil 331 and the third rogowski coil 341.

In summary, the measuring equipment can be used for simplifying the measuring process of the submerged arc furnace transformer, and meanwhile, the submerged arc furnace transformer with multiple specifications and sizes can be suitable for the submerged arc furnace transformer, and the universality is higher.

When the measuring device is used for measuring current of the submerged arc furnace transformer, a person skilled in the art uses the measuring device to measure the current of the submerged arc furnace transformer, the base 100 is driven to move through the moving wheel 130, when the base 100 moves to one side of the submerged arc furnace transformer, the electric hydraulic cylinder 120 drives the upright post 200 to lift, the upright post 200 moves in the limiting groove 250 through the limiting block 111 on the limiting plate 110 while lifting, after the upright post 200 is positioned and lifted to the height of the submerged arc furnace transformer, a proper rogowski coil is selected for installation according to the size of the submerged arc furnace transformer, the first bracket 320 drives the first rogowski coil 321 to rotate under the support of the damping rotating shaft 310, the second bracket 330 drives the second rogowski coil 331 to rotate, the third bracket 340 drives the third rogowski coil 341 to rotate, the variable frequency motor 230 is started, the variable frequency motor 230 drives the bidirectional screw 211 to rotate, and meanwhile the movable sliding block 220 moves relatively in the lifting groove 210 to socket the rogowski coil to the submerged arc furnace transformer for measuring the current.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. Short net current measurement device, its characterized in that: including base (100), stand (200), mounting bracket (300) and electric current measuring instrument (400), stand (200) are located department in the middle of the top of base (100), mounting bracket (300) are located the right side wall upside of stand (200), electric current measuring instrument (400) fixed connection is in the left side wall downside of stand (200), open right side wall of stand (200) has lift groove (210), rotate between the inner chamber top and the bottom of lift groove (210) and be connected with bidirectional screw (211), the both sides spiro union has movable slider (220) about the lateral wall of bidirectional screw (211), movable slider (220) sliding connection is in the inner chamber of lift groove (210), the top fixedly connected with inverter motor (230) of stand (200), the power output shaft bottom of inverter motor (230) runs through stand (200) and extends to the inner chamber of lift groove (210), and with the top fixed connection of bidirectional screw (211), the left side wall of bidirectional screw (300) with movable slider (220) right side wall fixed connection has damping bracket (310).

2. The short-network current measurement device of claim 1, wherein: the electric hydraulic machine is characterized in that a limiting plate (110) is fixedly connected to the middle of the front side and the rear side of the top of the base (100), a limiting block (111) is fixedly connected to the upper side of the inner side wall of the limiting plate (110), an electric hydraulic cylinder (120) is fixedly connected to the middle of the top of the base (100), and moving wheels (130) are rotatably connected to the four corners of the bottom of the base (100).

3. The short-network current measurement device of claim 2, wherein: the bottom of stand (200) is opened there is hidden groove (240), the top fixed connection of electronic pneumatic cylinder (120) is in the inner chamber top of hidden groove (240), the front and back lateral wall downside of stand (200) is opened there is spacing groove (250), stopper (111) sliding connection is in the inner chamber of spacing groove (250).

4. The short-network current measurement device of claim 1, wherein: the outer side wall of the damping rotating shaft (310) is rotatably connected with a first bracket (320), and the right side wall of the first bracket (320) is fixedly connected with a first rogowski coil (321).

5. The short-network current measuring device of claim 4, wherein: the damping rotating shaft (310) is characterized in that the outer side wall of the damping rotating shaft (310) is positioned on the front side wall and the rear side wall of the first bracket (320) and is rotatably connected with a second bracket (330), and the right side of the outer side wall of the second bracket (330) is fixedly connected with a second rogowski coil (331).

6. The short-network current measurement device of claim 5, wherein: the damping rotating shaft (310) is characterized in that a third bracket (340) is fixedly connected to the outer side wall of the second bracket (330), and a third rogowski coil (341) is fixedly connected between the right sides of the outer side walls of the third bracket (340).

7. The short-network current measurement device of claim 6, wherein: the current measuring instrument (400) is electrically connected with the first rogowski coil (321), the second rogowski coil (331) and the third rogowski coil (341) through wires.