Fixing mechanism for power transformer detection

Abstract

The utility model relates to the technical field of transformer detection, and discloses a fixing mechanism for power transformer detection, which comprises a workbench and a power transformer, the bottom end of the workbench is fixedly connected with a support column, the top end of the workbench is provided with a placing block, the placing block is internally provided with a fixing device, and the fixing device is fixedly connected with the power transformer. A limiting device is arranged at the top end of the workbench, the fixing device comprises a fixing arm, the outer surface of the fixing arm is fixedly connected with a reset spring, the end, away from the outer surface of the fixing arm, of the reset spring is fixedly connected with the inner arc face of a containing block, and the inner wall of the containing block is in threaded connection with a threaded rod. According to the utility model, through the design of the fixing arm, the limiting block and the clamping block, the power transformer can be fixed on the placing block before the power transformer is detected, so that the power transformer is not easy to deviate in the detection process, and the use stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer detection, in particular to a fixing mechanism for detecting a power transformer. Background Art

[0002] A power transformer is an electrical device used to change the voltage of an alternating current. It converts voltage through the principle of electromagnetic induction. Mainly composed of two or more coils and a magnetic core, power transformers play an important role in energy transmission, electronic equipment, industrial applications, and household electricity because they make the transmission and conversion of electrical energy more efficient and controllable.

[0003] According to patent announcement number: CN114740400A, a power transformer fault detection device is disclosed, including an operating table, a circular groove, a lifting ring plate, a turntable and a control panel; the control panel is installed on the left surface of the front end of the operating table, and the control panel is electrically connected to the external power supply device, the circular groove is opened on the surface of the operating table, and the circular groove is located in the middle position of the surface of the operating table, and the inner outer ring of the circular groove on the surface of the operating table is provided with a lifting ring plate. The present invention uses a turntable that can be lifted and lowered separately and a lifting ring plate that can be lifted and lowered separately, and a rotatable support ring plate is arranged on the upper surface of the lifting ring plate. The turntable can be used to support the transformer for detection, and the support ring plate can also support the transformer to drive the transformer to rotate, which can facilitate the detection of the transformer's rotation around and the detection of its bottom at the same time, and is convenient for the detection and maintenance of transformers with a large dead weight and containing transformer oil.

[0004] In the above documents, although the transformer can be supported by a turntable for inspection, and the transformer can also be supported by a supporting ring plate, there is no structure to fix the transformer during the inspection process. The transformer may topple over during the inspection, causing damage to the staff or the transformer. In view of this, we propose a fixing mechanism for power transformer inspection. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a fixing mechanism for detecting a power transformer, aiming to improve the problem in the prior art that when detecting the power transformer, there is no fixing structure, which causes the power transformer to topple over.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solution: the bottom end of the workbench is fixedly connected with a support column, the top end of the workbench is provided with a placement block, the inside of the placement block is provided with a fixing device, and the top end of the workbench is provided with a limiting device;

[0007] The fixing device includes a fixing arm, a return spring is fixedly connected to the lower end of the outer surface of the fixing arm, one end of the return spring away from the fixing arm is fixedly connected to the inner arc surface of the placement block, the inner wall of the placement block is threadedly connected to a threaded rod, one end of the threaded rod located on the inner side of the placement block is rotatably connected to a clamping block, and the other end of the threaded rod located outside the placement block is fixedly connected to a turning handle.

[0008] As a further description of the above technical solution:

[0009] The limiting device includes a turntable, a limiting groove is provided on the outer arc surface of the turntable, a fixing plate is fixedly connected to the top of the workbench, a supporting spring is fixedly connected to the outer surface of the fixing plate, and an insert is fixedly connected to the end of the supporting spring away from the fixing plate.

[0010] As a further description of the above technical solution:

[0011] The inner arc surface of the placement block is fixedly connected to a limiting block, and the limiting block is located just above the fixed arm.

[0012] As a further description of the above technical solution:

[0013] The top end of the fixed arm is hinged to the inner arc surface of the placement block, and the lower end of the fixed arm is provided with a rubber pad.

[0014] As a further description of the above technical solution:

[0015] There are two groups of clamping blocks in total, and the two groups of clamping blocks are symmetrically distributed on the front and rear sides of the placement block with respect to the transverse center line of the placement block.

[0016] As a further description of the above technical solution:

[0017] A cylindrical protrusion is arranged at one end of the insert block close to the fixing plate, and the insert block is slidably connected with the fixing plate.

[0018] As a further description of the above technical solution:

[0019] The insert block is located inside the limiting groove, and the cross-sectional dimension of the insert block is the same as the cross-sectional dimension of the limiting groove.

[0020] As a further description of the above technical solution:

[0021] The bottom end of the turntable is rotatably connected to the top end of the workbench, and the top end of the turntable is fixedly connected to the bottom end of the placement block.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. In the utility model, by means of the design including the fixed arm, the limit block and the clamping block, the power transformer can be fixed on the inner side of the placement block before the power transformer is tested, so as to ensure that the power transformer is not easily deviated during the testing process and increase the stability of the device.

[0024] 2. In the utility model, by means of the design including the limit groove, the support spring and the insert block, the power transformer can be rotated when the power transformer is tested, and the turntable can be limited when it rotates to the specified position to ensure that the orientation of the power transformer will not be affected by the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the three-dimensional structure of the fixing device of the utility model;

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the limiting device of the utility model.

[0029] In the figure: 1. workbench; 2. support column; 3. placement block; 4. power transformer; 5. fixing device; 51. fixing arm; 52. limit block; 53. return spring; 54. turning handle; 55. threaded rod; 57. clamping block; 6. limit device; 61. turntable; 62. limit groove; 63. fixing plate; 64. support spring; 65. plug block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0033] See also Figure 1-3 The utility model provides an embodiment: a fixing mechanism for detecting a power transformer, comprising a workbench 1 and a power transformer 4, wherein a support column 2 is fixedly connected to the bottom end of the workbench 1, a placement block 3 is arranged at the top end of the workbench 1, a fixing device 5 is arranged inside the placement block 3, a limiting block 52 is fixedly connected to the inner arc surface of the placement block 3, the limiting block 52 can limit the motion trajectory of a fixed arm 51, the limiting block 52 is located directly above the fixed arm 51, and a limiting device 6 is arranged at the top end of the workbench 1;

[0034] The fixing device 5 includes a fixing arm 51, which can fix the base of the power transformer 4. The top of the fixing arm 51 is hinged to the inner arc surface of the placement block 3. The fixing arm 51 can be flipped to adjust its own angle. The lower end of the outer surface of the fixing arm 51 is fixedly connected to a reset spring 53. The reset spring 53 can drive the fixing arm 51 to reset and keep it always squeezing the power transformer 4 below. The end of the reset spring 53 away from the outer surface of the fixing arm 51 is fixedly connected to the inner arc surface of the placement block 3, and the inner wall of the placement block 3 A threaded rod 55 is threadedly connected, and rotating the threaded rod 55 can drive the clamping block 57 to move laterally. One end of the threaded rod 55 located inside the placement block 3 is rotatably connected to the clamping block 57. There are two groups of clamping blocks 57. The two groups of clamping blocks 57 are symmetrically distributed on the front and back sides of the placement block 3 with the transverse center line of the placement block 3. The two groups of clamping blocks 57 can cooperate to clamp and fix the power transformer 4. The other end of the threaded rod 55 located outside the placement block 3 is fixedly connected to a turning handle 54, and turning the turning handle 54 can drive the threaded rod 55 to rotate.

[0035] Specifically, the inner arc surface of the placement block 3 is fixedly connected to the limit block 52, and the limit block 52 is located directly above the fixed arm 51, so that it can limit the rotation range of the fixed arm 51. The top of the fixed arm 51 is hinged to the inner arc surface of the placement block 3, and the lower end of the fixed arm 51 is provided with a rubber pad, so as to avoid rigid collision between the fixed arm 51 and the bottom end of the power transformer 4. There are two groups of clamping blocks 57, and the two groups of clamping blocks 57 are symmetrically distributed on the front and back sides of the inside of the placement block 3 with the transverse center line of the placement block 3.

[0036] See also Figure 1 , Figure 2 The limiting device 6 includes a turntable 61, and a limiting groove 62 is provided on the outer arc surface of the turntable 61. The top of the workbench 1 is fixedly connected with a fixing plate 63, and the outer surface of the fixing plate 63 is fixedly connected with a supporting spring 64. The supporting spring 64 can provide support for the plug block 65 without being affected by external forces. The end of the supporting spring 64 away from the fixing plate 63 is fixedly connected with the plug block 65. The plug block 65 is inserted into the interior of the limiting groove 62 to limit the turntable 61. The end of the plug block 65 close to the fixing plate 63 is provided with a cylindrical protrusion, so that the movement trajectory of the plug block 65 can be limited. The plug block 65 is slidably connected to the fixing plate 63, and the plug block 65 is located inside the limiting groove 62. The cross-sectional size of the plug block 65 is the same as the cross-sectional size of the limiting groove 62. The bottom end of the turntable 61 is rotatably connected to the top of the workbench 1, and the top of the turntable 61 is fixedly connected to the bottom end of the placement block 3. Rotating the turntable 61 can drive the placement block 3 to rotate.

[0037] Working principle: before the power transformer 4 needs to be tested, the power transformer 4 is placed inside the placement block 3, and the power transformer 4 squeezes the fixed arm 51. The fixed arm 51 is squeezed and squeezes the reset spring 53 while flipping, thereby breaking away from the obstruction of the power transformer 4. After the power transformer 4 is completely placed, the reset spring 53 loses the external force to reset the fixed arm 51, and the fixed arm 51 fits against the outer wall of the power transformer 4 to fix it. Turning the handle 54 drives the threaded rod 55 to rotate, and the rotation of the threaded rod 55 drives the clamping block 57 to move horizontally to clamp and fix the power transformer 4.

[0038] If the angle of the power transformer 4 needs to be adjusted during the detection process, the block 65 is moved toward the fixed plate 63, and the block 65 will squeeze the support spring 64 until the block 65 is out of the limit groove 62. At this time, the turntable 61 is rotated, and the turntable 61 drives the placement block 3 to rotate. When the required angle is reached, the force on the block 65 is released, and the support spring 64 drives the block 65 to reset and insert into the limit groove 62 to limit the angle of the turntable 61.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing mechanism for testing a power transformer, comprising a workbench (1) and a power transformer (4), characterized in that: The bottom end of the workbench (1) is fixedly connected to a support column (2), the top end of the workbench (1) is provided with a placement block (3), a fixing device (5) is provided inside the placement block (3), and the top end of the workbench (1) is provided with a limiting device (6); The fixing device (5) comprises a fixing arm (51), the lower end of the outer surface of the fixing arm (51) is fixedly connected to a return spring (53), one end of the return spring (53) away from the fixing arm (51) is fixedly connected to the inner arc surface of the placement block (3), the inner wall of the placement block (3) is threadedly connected to a threaded rod (55), one end of the threaded rod (55) located inside the placement block (3) is rotatably connected to a clamping block (57), and the other end of the threaded rod (55) located outside the placement block (3) is fixedly connected to a turning handle (54).

2. A fixing mechanism for detecting a power transformer according to claim 1, characterized in that: The limiting device (6) comprises a turntable (61), the outer arc surface of the turntable (61) is provided with a limiting groove (62), the top end of the workbench (1) is fixedly connected to a fixing plate (63), the outer surface of the fixing plate (63) is fixedly connected to a supporting spring (64), and the end of the supporting spring (64) away from the fixing plate (63) is fixedly connected to an insert block (65).

3. A fixing mechanism for detecting a power transformer according to claim 1, characterized in that: The inner arc surface of the placement block (3) is fixedly connected to a limiting block (52), and the limiting block (52) is located directly above the fixed arm (51).

4. A fixing mechanism for detecting a power transformer according to claim 1, characterized in that: The top end of the fixed arm (51) is hinged to the inner arc surface of the placement block (3), and the lower end of the fixed arm (51) is provided with a rubber pad.

5. The fixing mechanism for detecting a power transformer according to claim 1, characterized in that: There are two groups of clamping blocks (57) in total. The two groups of clamping blocks (57) are symmetrically distributed on the front and rear sides of the placement block (3) with respect to the transverse center line of the placement block (3).

6. A fixing mechanism for detecting a power transformer according to claim 2, characterized in that: A cylindrical protrusion is provided at one end of the insert block (65) close to the fixing plate (63), and the insert block (65) is slidably connected to the fixing plate (63).

7. A fixing mechanism for detecting a power transformer according to claim 6, characterized in that: The insert block (65) is located inside the limiting groove (62), and the cross-sectional dimension of the insert block (65) is the same as the cross-sectional dimension of the limiting groove (62).

8. The fixing mechanism for detecting a power transformer according to claim 2, characterized in that: The bottom end of the turntable (61) is rotatably connected to the top end of the workbench (1), and the top end of the turntable (61) is fixedly connected to the bottom end of the placement block (3).

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