Power transformer fault detection device

Abstract

The utility model relates to a power transformer fault detection device in the technical field of transformer detection, which comprises a bottom plate and a top beam, arc-shaped sliding structures are arranged at two end parts of the bottom plate, the two arc-shaped sliding structures are symmetrically arranged, and a lead screw motor is arranged in the middle of each arc-shaped sliding structure; the two ends of the top beam are connected with corresponding lead screw parts of lead screw motors through lead screw sliding blocks respectively, the top beam is in sliding fit with a fixing frame in the length direction of the top beam, a control table is arranged on the inner side of the fixing frame, and connecting rods are hinged to the two ends of the bottom of the fixing frame. The horizontal angle of the top beam can be adjusted through the arc-shaped sliding structure; the height of the top beam relative to the power transformer is adjusted through a lead screw motor; the transverse function relative to the power transformer is adjusted through movement of the fixed frame; through the function of adjusting the distance between the two detection clamps by the bidirectional telescopic device, the detection clamps can clamp the power transformer at a proper position.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer detection, in particular to a power transformer fault detection device. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components include primary coil, secondary coil and iron core (magnetic core). The main functions of a transformer include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. With the gradual increase in electrical equipment in production and life, higher requirements are also placed on the working performance of transformers.

[0003] The most common transformer is the transformer that uses oil to work, that is, the oil-type transformer, which is a structural type of transformer, that is, the coil of the transformer is immersed in oil. Due to the need for fire protection, oil-immersed transformers are generally installed in a separate transformer room or outdoors. They have the characteristics of large size, low cost, simple maintenance, good heat dissipation, strong overload capacity, and wide adaptability to the environment.

[0004] The existing Chinese patent CN215867063U discloses a power transformer fault detection device, which specifically discloses a body, a control console on the top of the body, a support structure on the inside of the body for carrying and adjusting the height of the transformer, and a detection structure capable of adjusting the width on the top of the inside of the body; although the device can detect the power transformer, the device has the following defects: 1. The detection clamp in the detection structure of the device can only be adjusted horizontally in the horizontal direction. When placing the power transformer, it is difficult to accurately ensure the longitudinal position and horizontal angle of the placed power transformer. It can only be found when the power transformer is close to the detection clamp, and it needs to be adjusted many times to reach the appropriate position, which not only affects the detection efficiency, but also because the transformer, especially the oil-immersed transformer, is large in size and inconvenient to adjust.

[0005] Therefore, we designed a power transformer fault detection device. Utility Model Content

[0006] In order to overcome the deficiencies in the background technology, the utility model discloses a power transformer fault detection device.

[0007] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0008] A power transformer fault detection device comprises a base plate and a top beam, wherein both ends of the base plate are provided with an arc-shaped sliding structure, and the two arc-shaped sliding structures are symmetrically arranged, and a lead screw motor is provided in the middle of the arc-shaped sliding structure; both ends of the top beam are respectively connected to the corresponding lead screw motor lead screw parts through lead screw sliders, and the top beam is slidably matched with a fixed frame along its length direction, a control console is provided on the inner side of the fixed frame, connecting rods are hinged at both ends of the bottom of the fixed frame, and a sliding column frame that can slide along the width direction of the base plate is provided at the lower end of the connecting rod, a detection clamp connected to the control console signal is provided at the bottom of the sliding column frame, and a two-way telescopic device is hinged in the middle of the two connecting rods.

[0009] Preferably, the sliding column frame comprises a U-shaped frame body, an open end of the U-shaped frame body is provided with a sliding column that slides through a connecting rod, and a middle portion of a closed end of the U-shaped frame body is provided with the detection clamp.

[0010] Preferably, a slide groove is provided in the middle of the top beam along its length direction; a hanging plate with an upper end passing through the slide groove is provided on the top surface of the fixed frame, and the upper end of the hanging plate is slidably matched with the top beam.

[0011] Preferably, floating plates are hinged on both sides of the upper end of the hanging plate, and rollers rolling on the top surface of the top beam are provided at both ends of the floating plate.

[0012] Preferably, a steel rail is provided on the top surface of the top beam, and the roller rolls on the corresponding steel rail.

[0013] Preferably, the roller is a single-rim steel wheel.

[0014] Preferably, the arc-shaped sliding structure comprises arc-shaped slide rails provided at both ends of the bottom plate, the arc-shaped slide rails are slidably connected with a slider, and the lead screw motor is provided on the top of the slider;

[0015] The arc-shaped slide rails in the two arc-shaped sliding structures are symmetrically arranged.

[0016] Preferably, a limit piece is provided at the outer end of the screw part of the screw motor.

[0017] Preferably, the screw motor comprises a driving motor with an output end facing upward, an extension rod is coaxially fixedly connected to the output end of the driving motor, and a screw is coaxially fixedly connected to the upper end of the extension rod.

[0018] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0019] 1. The arc-shaped sliding structure can drive the corresponding lead screw motor to move in an arc shape, thereby realizing the function of adjusting the horizontal angle of the top beam; the lead screw motor can drive the top beam to move up and down, thereby realizing the function of adjusting the height of the top beam relative to the power transformer; the fixed frame can move along the length direction of the top beam, thereby realizing the function of adjusting the horizontal direction relative to the power transformer; the two connecting rods can be driven to rotate by the two-way telescopic device, thereby realizing the function of adjusting the distance between the lower ends of the connecting rods, so that the detection clamp can clamp the power transformer in a suitable position; on the whole, after the power transformer is placed, the detection clamp can be adjusted to make the detection clamp clamp the power transformer in a suitable position. Compared with the prior art, when the longitudinal position and horizontal angle of the power transformer deviate after placement, the power transformer needs to be adjusted multiple times to make the detection clamp clamp the power transformer in a suitable position. The detection device is more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is the front view of the utility model;

[0022] Figure 3 for Figure 1 A magnified view of the part I in the figure.

[0023] In the figure: 1. bottom plate; 2. top beam; 21. rail; 3. arc-shaped sliding structure; 31. arc-shaped slide rail; 32. slider; 4. screw motor; 41. limiter; 42. drive motor; 43. extension rod; 44. screw; 5. fixed frame; 51. hanging plate; 52. floating plate; 53. roller; 6. control console; 7. connecting rod; 8. sliding column frame; 81. U-shaped frame; 82. sliding column; 9. detection clamp; 10. two-way telescopic device. DETAILED DESCRIPTION

[0024] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0025] Embodiment 1, in combination with the attached Figure 1-3 A power transformer fault detection device includes a bottom plate 1 and a top beam 2. Both ends of the bottom plate 1 are provided with arc-shaped sliding structures 3, and the two arc-shaped sliding structures 3 are symmetrically arranged. A lead screw motor 4 is provided in the middle of the arc-shaped sliding structure 3. According to needs, in order to facilitate the placement and removal of the power transformer, the bottom plate 1 can be a rectangular plate; in order to make the overall structure more coordinated after the arc-shaped sliding structure 3 is installed, both ends of the bottom plate 1 have arc-shaped parts matching the arc-shaped sliding structure 3.

[0026] The two ends of the top beam 2 are connected to the corresponding screw parts of the screw motor 4 through screw sliders respectively; in order to prevent the top beam 2 from rising excessively, a limiter 41 is provided at the outer end of the screw part of the screw motor 4.

[0027] The top beam 2 is slidably matched with a fixed frame 5 along its length direction; in this way, the fixed frame 5 can be driven up and down by two sets of screw motors 4 to achieve the function of adjusting the height of the fixed frame 5. A control console 6 is provided on the inside of the fixed frame 5, and connecting rods 7 are hinged at both ends of the bottom of the fixed frame 5, and a sliding column frame 8 that can slide along the width direction of the bottom plate 1 is provided at the lower end of the connecting rod 7, and a detection clamp 9 connected to the control console 6 signal is provided at the bottom of the sliding column frame 8, and a two-way telescopic device 10 is hinged in the middle of the two connecting rods 7; this arrangement can drive the connecting rod 7 to rotate through the two-way telescopic device 10 to achieve the function of adjusting the distance between the lower ends of the connecting rod 7, thereby making the two detection clamps 9 adaptable to the power transformer with the through-hole width.

[0028] Specifically, the detection clamp 9 is signal-connected to the control console 6, and the control console 6 has electrical parts such as a detection system and a control system.

[0029] Such an arrangement can drive the corresponding screw motor 4 to move in an arc shape through the arc sliding structure 3, thereby realizing the function of adjusting the horizontal angle of the top beam 2; the screw motor 4 drives the top beam 2 to move up and down, thereby realizing the function of adjusting the height of the top beam 2 relative to the power transformer; the fixed frame 5 moves along the length direction of the top beam 2, thereby realizing the function of adjusting the horizontal direction relative to the power transformer; the two connecting rods 7 are driven to rotate by the two-way telescopic device 10, thereby realizing the function of adjusting the distance between the lower ends of the connecting rods 7, so that the detection clamp 9 can clamp the power transformer in a suitable position; on the whole, after the power transformer is placed, the detection clamp 9 can be adjusted so that the detection clamp 9 clamps the power transformer in a suitable position. Compared with the prior art, when the longitudinal position and horizontal angle of the power transformer deviate after placement, the power transformer needs to be adjusted multiple times to make the detection clamp 9 clamp the power transformer in a suitable position. This detection device is more convenient and quick.

[0030] Furthermore, the arc-shaped sliding structure 3 includes an arc-shaped sliding rail 31 arranged at both ends of the base plate 1, the arc-shaped sliding rail 31 is slidably connected to a slider 32, and a screw motor 4 is provided on the top of the slider 32; wherein the arc-shaped sliding rails 31 in the two arc-shaped sliding structures 3 are symmetrically arranged; specifically, the two arc-shaped sliding rails 31 are located on the same circle.

[0031] Embodiment 2, combined with the attached Figure 1-3 A power transformer fault detection device, based on the first embodiment, the sliding column frame 8 includes a U-shaped frame 81, the open end of the U-shaped frame 81 is provided with a sliding column 82 that slides through the connecting rod 7, and the middle part of the closed end of the U-shaped frame 81 is provided with a detection clamp 9.

[0032] Specifically, the moving direction of the sliding column 82 is perpendicular to the moving direction of the fixed frame 5 .

[0033] This arrangement allows the position of the detection clamp 9 relative to the longitudinal direction of the power transformer to be adjusted by moving the slide post 82 .

[0034] As required, the slide post 82 is a cylindrical structure, so that the vertical angle of the detection clamp 9 can be adjusted by rotating the slide post 82, so that the detection clamp 9 can adjust the angle according to actual conditions.

[0035] Embodiment 3, in combination with the attached Figure 1-3 , a power transformer fault detection device, based on the first or second embodiment, a slide groove is provided in the middle of the top beam 2 along its length direction; a hanging plate 51 is provided on the top surface of the fixed frame 5, the upper end of which passes through the slide groove, and the upper end of the hanging plate 51 is slidably matched with the top beam 2; that is, the upper end of the hanging plate 51 is slidably matched with the top beam 2, so that the fixed frame 5 can move along the length direction of the top beam 2.

[0036] Furthermore, floating plates 52 are hinged on both sides of the upper end of the hanging plate 51, and rollers 53 rolling on the top surface of the top beam 2 are provided at both ends of the floating plate 52; such a setting enables the rollers 53 to roll on the top surface of the top beam 2, and the fixed frame 5 moves along the length direction of the top beam 2. At the same time, when the two rollers 53 on the same side encounter an uneven position, the floating plate 52 can be rotated to allow the rollers 53 to easily cross the uneven position.

[0037] Furthermore, a steel rail 21 is provided on the top surface of the top beam 2, and a roller 53 rolls on the corresponding steel rail 21; preferably, the roller 53 is a single-edge steel wheel; in this way, the roller 53 cooperates with the steel rail 21 to prevent the hanger 51 from swinging longitudinally relative to the power transformer.

[0038] In this embodiment, there may be a clearance fit between the hanging plate 51 and the slide groove to prevent friction between the hanging plate 51 and the slide groove wall, thereby preventing the smoothness of movement of the fixed frame 5 from being affected.

[0039] Embodiment 4, in combination with the attached Figure 1-3 A power transformer fault detection device, based on any one of embodiments one to two, in order to facilitate the movement of the screw motor 4, the screw motor 4 includes a drive motor 42 with an output end facing upward, an extension rod 43 is coaxially fixed to the output end of the drive motor 42, and a screw 44 is coaxially fixed to the upper end of the extension rod 43.

[0040] In this way, the lead screw motor 4 can be pushed by holding the extension rod 43 to move the arc-shaped sliding structure 3.

[0041] To increase stability, a mounting cavity for mounting a driving motor 42 is provided below the top surface of the slider 32 in the arc-shaped sliding structure 3 , and the lower end of the extension rod 43 is connected to the top surface of the slider 32 through a bearing.

[0042] Furthermore, in order to be able to quickly adjust the horizontal angle of the top beam 2, a laser generator can be provided on the inner side of the extension rod 43 along its length direction, that is, the laser generator can generate linear laser, that is, the laser line generated by the laser generator can be irradiated on the power transformer in the up and down directions. When the laser is irradiated on the position where the power transformer is clamped by the detection clamp 9, it means that the horizontal angle of the top beam 2 has been adjusted.

[0043] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A power transformer fault detection device, characterized in that: The invention comprises a bottom plate (1) and a top beam (2). Both ends of the bottom plate (1) are provided with arc-shaped sliding structures (3), and the two arc-shaped sliding structures (3) are symmetrically arranged. A lead screw motor (4) is arranged in the middle of the arc-shaped sliding structure (3). The two end portions of the top beam (2) are respectively connected to the lead screw portions of the corresponding lead screw motor (4) through lead screw sliders. The top beam (2) is slidably matched with a fixed frame (5) along its length direction. A control console (6) is arranged inside the fixed frame (5). Both ends of the bottom of the fixed frame (5) are hinged with connecting rods (7), and the lower end of the connecting rod (7) is provided with a sliding column frame (8) that can slide along the width direction of the bottom plate (1). A detection clamp (9) connected to the control console (6) signal is arranged at the bottom of the sliding column frame (8), and a two-way telescopic device (10) is hinged in the middle of the two connecting rods (7).

2. A power transformer fault detection device according to claim 1, characterized in that: The sliding column frame (8) comprises a U-shaped frame body (81), the open end of the U-shaped frame body (81) is provided with a sliding column (82) that slides through the connecting rod (7), and the middle of the closed end of the U-shaped frame body (81) is provided on the detection clamp (9).

3. A power transformer fault detection device according to claim 1, characterized in that: The middle of the top beam (2) is provided with a slide groove arranged along its length direction; the top surface of the fixed frame (5) is provided with a hanging plate (51) whose upper end portion passes through the slide groove, and the upper end portion of the hanging plate (51) is slidably matched with the top beam (2).

4. A power transformer fault detection device according to claim 3, characterized in that: Floating plates (52) are hingedly connected to both sides of the upper end of the hanging plate (51), and rollers (53) are provided at both ends of the floating plate (52) for rolling on the top surface of the top beam (2).

5. A power transformer fault detection device according to claim 4, characterized in that: A steel rail (21) is provided on the top surface of the top beam (2), and the roller (53) rolls on the corresponding steel rail (21).

6. A power transformer fault detection device according to claim 5, characterized in that: The roller (53) is a single-rim steel wheel.

7. A power transformer fault detection device according to claim 1, characterized in that: The arc-shaped sliding structure (3) comprises arc-shaped slide rails (31) provided at both ends of the bottom plate (1), the arc-shaped slide rails (31) being slidably connected to a slider (32), and the lead screw motor (4) is provided on the top of the slider (32); The arc-shaped slide rails (31) in the two arc-shaped sliding structures (3) are symmetrically arranged.

8. A power transformer fault detection device according to claim 1, characterized in that: A limiting member (41) is provided at the outer end of the screw portion of the screw motor (4).

9. A power transformer fault detection device according to claim 1, characterized in that: The lead screw motor (4) comprises a drive motor (42) with an output end facing upwards, an extension rod (43) being coaxially fixedly connected to the output end of the drive motor (42), and a lead screw (44) being coaxially fixedly connected to the upper end of the extension rod (43).

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