On-load voltage regulation mechanism power-on and power-off performance testing device

Abstract

The utility model discloses an on-load voltage regulation mechanism power-on and power-off performance testing device, and relates to the technical field of electrical equipment accessory testing. The power-on and power-off detector comprises a power-on and power-off detector body and a maintenance shell installed on the rear end face of the power-on and power-off detector body, through grooves are formed in the tops and the bottoms of the outer walls of the two sides of the power-on and power-off detector body, clamping assemblies are arranged in the through grooves, and pushing assemblies are arranged on the outer sides of the through grooves. A heat dissipation assembly is arranged in the center of the outer wall of one side of the power-on and power-off detector body. According to the utility model, through the clamping assembly and the pushing assembly, a worker can quickly disassemble and assemble the maintenance shell, the power on-off detector body is maintained, time and labor are saved, the working efficiency is high, a heat dissipation effect can be achieved by using the heat dissipation assembly, the heat dissipation effect is good, the outer wall of the heat dissipation shell can be cleaned, and the service life of the power on-off detector body is prolonged. Dust is prevented from blocking through holes in the outer wall of the heat dissipation shell, the subsequent heat dissipation efficiency and effect are not affected, and meanwhile manpower and material resources can be saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power equipment accessory testing, and particularly relates to a device for testing the on-off performance of a tap-changer mechanism. Background Art

[0002] The tap-changer mechanism is a structure of the voltage regulation method in a load tap-changing power transformer. In order to ensure the product quality of the tap-changer mechanism and its subsequent stable operation, it is necessary to conduct on-off tests on the tap-changer mechanism through an on-off performance testing device, which has good testing effects, high efficiency, and is convenient to use.

[0003] After retrieval, the publication number CN211043495U, and the application date November 11, 2019 disclose an on-off detection circuit device, including an on-off detection circuit device body. A maintenance shell is arranged on the back of the on-off detection circuit device body. Installation blocks are fixedly connected to the four corners of the front surface of the maintenance shell. Installation grooves are respectively opened on the back of the on-off detection circuit device body corresponding to the four installation blocks. One ends of the four installation blocks close to the on-off detection circuit device body respectively extend into the four installation grooves and are inserted into the installation grooves. Limiting devices are arranged on the tops of the two upper installation blocks and the bottoms of the two lower installation blocks. In this scheme, when it is necessary to repair the on-off detection circuit device body, through the cooperation between the installation blocks, installation grooves, limiting devices, and through holes, the limiting of the installation blocks by the limiting devices is cancelled, and the maintenance shell can be quickly disassembled. The operation is convenient, the maintenance efficiency is improved, and the practicability is improved.

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. When the above on-off detection circuit device is in use, the installation of the maintenance shell is realized through the limiting device. When operating by staff, four movable blocks need to be pushed simultaneously, and a single person cannot perform disassembly and assembly operations, so rapid disassembly and assembly cannot be achieved, which is time-consuming and laborious, and the work efficiency is low;

[0006] 2. When the above on-off detection circuit device is in use, it only dissipates heat through the heat dissipation holes. This method has low heat dissipation efficiency and poor effect. At the same time, the outside of the heat dissipation holes will be covered with dust after long-term use, which affects heat dissipation, and manual cleaning will increase the labor intensity. Therefore, we provide a device for testing the on-off performance of a tap-changer mechanism to solve the above problems. Summary of the Utility Model

[0007] The purpose of the present utility model is to provide a device for testing the on-off performance of a tap-changer mechanism. By setting a clamping component and a pushing component, it is convenient for staff to quickly disassemble and assemble the maintenance shell and perform maintenance on the on-off detector body itself, saving time and effort and having high work efficiency. In addition, the heat dissipation component can play a role in heat dissipation with good heat dissipation effect, and at the same time can clean the outer wall of the heat dissipation shell, avoiding dust clogging the through holes on the outer wall of the heat dissipation shell and affecting the subsequent heat dissipation efficiency and effect, and also saving manpower and material resources.

[0008] To solve the above technical problems, the present utility model is realized through the following technical solutions:

[0009] The present utility model is a device for testing the on-off performance of a tap-changer mechanism, including an on-off detector body and a maintenance shell installed on its rear end face. Through grooves are provided at the top and bottom of both outer walls of the on-off detector body, a clamping component is arranged inside the through grooves, a pushing component is arranged outside the through grooves, and a heat dissipation component is arranged at the center position of one outer wall of the on-off detector body;

[0010] The clamping component includes a clamping plate and connecting plates fixedly connected to the top and bottom edges of its inner wall. A rotating shaft is rotatably connected inside the connecting plates;

[0011] The pushing component includes a connecting frame and moving blocks fixedly connected to its top and bottom. A pushing block is fixedly connected to the center position of the inner wall of the moving block;

[0012] The heat dissipation component includes a heat dissipation shell and a mounting frame fixed on its outer wall. Motors are installed above and below the inside of the heat dissipation shell.

[0013] The present utility model is further provided that an embedding ring is fixedly connected to the inner wall of the maintenance shell, and clamping holes are provided at the top and bottom of both outer walls of the embedding ring.

[0014] The present utility model is further provided that sliding grooves are provided above and below the outside of the through grooves, and a heat dissipation window is installed at the center position of the other outer wall of the on-off detector body.

[0015] The present utility model is further provided that both ends of the rotating shaft respectively penetrate through the bearings on the adjacent connecting plates and are fixedly connected to the inner wall of the through groove, and a torsion spring is sleeved on the outer wall of the rotating shaft.

[0016] The present utility model is further provided that sliding blocks are fixedly connected to the top and bottom edges of the inner wall of the moving block, and the sliding blocks are located inside the sliding grooves.

[0017] The present utility model is further provided that the output shaft of the motor is connected to the transmission shaft through a coupling, and the other end of the transmission shaft penetrates through the bearing on the inner wall of the heat dissipation shell and is connected to the inner wall of the rotating plate.

[0018] The present utility model is further configured such that a fan blade is installed on the outer wall of the transmission shaft, and the fan blade is located inside the heat dissipation housing. Cleaning brushes are installed at both the top and bottom of the inner wall of the rotating plate.

[0019] The present utility model has the following beneficial effects:

[0020] By providing a clamping component and a pushing component, the present utility model pushes the connecting frame to drive the pushing block on the inner wall of the moving block to move and apply force to the outer end of the clamping plate, causing it to rotate under the elastic performance of the rotating shaft and the torsion spring, thereby realizing or canceling the limiting effect between the clamping plate and the clamping hole. This facilitates the staff to quickly disassemble and assemble the inspection housing and perform maintenance on the main body of the power-on and power-off detector, saving time and effort and having high work efficiency. It solves the problem that in the above power-on and power-off detection circuit device, when in use, the inspection housing is installed through a limiting device, but this method requires simultaneously pushing four movable blocks during operation by the staff, and a single person cannot perform disassembly and assembly operations, making it impossible to achieve quick disassembly and assembly, being time-consuming and laborious, and having low work efficiency.

[0021] By providing a heat dissipation component, when the motor operates, it can drive the transmission shaft to rotate. The rotation of the transmission shaft will drive the fan blade and the rotating plate on it to rotate, playing a role in heat dissipation with good heat dissipation effect. The rotation of the rotating plate can drive the cleaning brush to rotate and achieve the effect of cleaning the outer wall of the heat dissipation housing, which can prevent dust from blocking the through holes on the outer wall of the heat dissipation housing, affecting the subsequent heat dissipation efficiency and effect. At the same time, it can save manpower and material resources. It solves the problem that in the above power-on and power-off detection circuit device, when in use, it only dissipates heat through the heat dissipation holes, but this method has low heat dissipation efficiency and poor effect. At the same time, after long-term use, the outside of the heat dissipation holes will be stained with dust, affecting heat dissipation, and manual cleaning will increase the labor intensity.

[0022] Of course, when implementing any product of the present utility model, it is not necessarily required to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a structural schematic diagram of a power-on and power-off performance testing device for an on-load voltage regulating mechanism.

[0025] Figure 2 It is an exploded view of a power-on and power-off performance testing device for an on-load voltage regulating mechanism.

[0026] Figure 3 It is a cross-sectional view of a power-on and power-off performance testing device for an on-load voltage regulating mechanism.

[0027] Figure 4 It is a structural diagram of the clamping component.

[0028] Figure 5 It is a structural diagram of the pushing component.

[0029] Figure 6 It is an exploded view of the heat dissipation component.

[0030] In the attached drawings, the list of components represented by each reference number is as follows:

[0031] 1 - Main body of the on - off detector, 101 - Maintenance shell, 101a - Embedded ring, 101b - Card hole, 102 - Slide groove, 103 - Through groove, 104 - Heat dissipation window, 2 - Clamping component, 201 - Card plate, 201a - Connecting plate, 202 - Rotating shaft, 203 - Torsion spring, 3 - Pushing component, 301 - Connecting frame, 302 - Moving block, 302a - Slide block, 303 - Pushing block, 4 - Heat dissipation component, 401 - Heat dissipation shell, 402 - Mounting frame, 403 - Motor, 403a - Transmission shaft, 404 - Fan blade, 405 - Rotating plate, 405a - Cleaning brush. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] Example 1, please refer to Figures 1 to 5 , the present invention is a device for testing the on - off performance of a on - load tap - changing mechanism, including the main body 1 of the on - off detector and a maintenance shell 101 installed on its rear end face. Through grooves 103 are opened at the top and bottom of the outer walls on both sides of the main body 1 of the on - off detector. A clamping component 2 is arranged inside the through groove 103, and a pushing component 3 is arranged outside the through groove 103; the clamping component 2 includes a card plate 201 and connecting plates 201a fixedly connected to the top and bottom edges of its inner wall. A rotating shaft 202 is rotatably connected inside the connecting plate 201a; the pushing component 3 includes a connecting frame 301 and moving blocks 302 fixedly connected to its top and bottom. A pushing block 303 is fixedly connected to the central position of the inner wall of the moving block 302.

[0034] Specifically, an embedded ring 101a is fixedly connected to the inner wall of the maintenance shell 101. Card holes 101b are formed at the top and bottom of both outer walls of the embedded ring 101a. Sliding grooves 102 are provided above and below the outer side of the through groove 103. A heat dissipation window 104 is installed at the center of the other outer wall of the power on-off detector body 1. The two ends of the rotating shaft 202 respectively penetrate through the bearings on the adjacent connecting plates 201a and are fixedly connected to the inner wall of the through groove 103. A torsion spring 203 is sleeved on the outer wall of the rotating shaft 202. At the top and bottom edges of the inner wall of the moving block 302, sliding blocks 302a are fixedly connected, and the sliding blocks 302a are located inside the sliding grooves 102.

[0035] Furthermore, the power on-off detector body 1 is a prior art, so no further elaboration will be made here. The cross-section of the through groove 103 is Z-shaped, and the cross-section of the clamping plate 201 is L-shaped. When the clamping plate 201 is stressed, it will rotate around the rotating shaft 202. Under the elastic performance of the torsion spring 203, the clamping plate 201 can be rotated. The cross-section of the pushing block 303 is triangular. When the moving block 302 is stressed, it will move under the auxiliary action of the sliding block 302a and the sliding groove 102, and can play a limiting role. The inner end of the clamping plate 201 is correspondingly arranged with the card hole 101b.

[0036] The operation process of this embodiment is as follows: When performing a power on-off performance test on the on-load tap-changer mechanism, the performance test can be carried out through the power on-off detector body 1. When the staff needs to maintain the power on-off detector body 1, the staff can push the connection frames 301 on both sides forward. The connection frames 301 being stressed will drive the moving blocks 302 at the top and bottom to move under the auxiliary action of the sliding blocks 302a and the sliding grooves 102. The movement of the moving block 302 will drive the pushing blocks 303 on its inner wall to move. The movement of the pushing block 303 will squeeze the outer end of the clamping plate 201 located inside the through groove 103. The outer end of the clamping plate 201 being stressed will rotate around the rotating shaft 202 and squeeze the torsion spring 203. At this time, the inner end of the clamping plate 201 can be rotated out of the corresponding card hole 101b, and the limiting effect on the maintenance shell 101 can be cancelled, and then the maintenance shell 101 can be disassembled. The installation is the same. After inserting the embedded ring 101a on the maintenance shell 101 into the power on-off detector body 1, stop applying force to the connection frame 301. At this time, under the elastic performance of the torsion spring 203, the clamping plate 201 can be snapped into the corresponding card hole 101b to play a limiting role and complete the installation. It is convenient for the staff to quickly disassemble and assemble the maintenance shell 101 and maintain the power on-off detector body 1, saving time and effort and having high work efficiency.

[0037] Example 2, please refer to Figure 1 and Figure 6, on the basis of Embodiment 1, different from the first embodiment: a heat dissipation component 4 is provided. The heat dissipation component 4 includes a heat dissipation shell 401 and a mounting bracket 402 fixed on its outer wall. Motors 403 are installed above and below the inside of the heat dissipation shell 401, solving the problem that the existing on-off detection circuit device only dissipates heat through heat dissipation holes during use, and this heat dissipation method has low efficiency and poor effect. At the same time, dust will adhere to the outside of the heat dissipation holes after long-term use, affecting heat dissipation, and manual cleaning will increase the labor intensity.

[0038] Specifically, the output shaft of the motor 403 is connected to the transmission shaft 403a through a coupling. The other end of the transmission shaft 403a penetrates through the bearing on the inner wall of the heat dissipation shell 401 and is connected to the inner wall of the rotating plate 405. A fan blade 404 is installed on the outer wall of the transmission shaft 403a, and the fan blade 404 is located inside the heat dissipation shell 401. Cleaning brushes 405a are installed at the top and bottom of the inner wall of the rotating plate 405.

[0039] Furthermore, the operation of the motor 403 will drive the transmission shaft 403a to rotate. The rotation of the transmission shaft 403a can drive the fan blade 404 and the rotating plate 405 on it to rotate. The cleaning brush 405a contacts the outer wall of the heat dissipation shell 401. The air duct generated during the heat dissipation process enters from the heat dissipation shell 401 and then exits from the heat dissipation window 104.

[0040] The operation process of this embodiment is as follows: when the on-off detector body 1 is in use, the started motor 403 drives the transmission shaft 403a to rotate through the coupling by the rotation of the output shaft of the motor 403. Since the fan blade 404 and the rotating plate 405 are both located on the transmission shaft 403a, the rotation of the transmission shaft 403a will drive the fan blade 404 and the rotating plate 405 to rotate synchronously. When the fan blade 404 rotates, it will generate an air duct, allowing external air to enter through the heat dissipation shell 401 and then exit from the heat dissipation window 104, which can play a role in heat dissipation. The rotation of the rotating plate 405 will drive the cleaning brush 405a on its inner wall to rotate and clean the outer wall of the heat dissipation shell 401, which can prevent dust from blocking the through holes on the outer wall of the heat dissipation shell 401, affecting the subsequent heat dissipation efficiency and effect, and at the same time can save manpower and material resources.

[0041] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A device for testing the on-off performance of a load tap-changer mechanism, comprising an on-off detector body (1) and a maintenance shell (101) installed on its rear end face. Through grooves (103) are provided at the top and bottom of both outer walls of the on-off detector body (1), and it is characterized in that: Inside the through groove (103), a clamping component (2) is provided. Outside the through groove (103), a pushing component (3) is provided. At the center of one side outer wall of the power-on / off detector body (1), a heat dissipation component (4) is provided; The clamping component (2) includes a clamping plate (201) and connecting plates (201a) fixedly connected to the top and bottom edges of its inner wall. Inside the connecting plate (201a), a rotating shaft (202) is rotatably connected; The pushing component (3) includes a connecting frame (301) and moving blocks (302) fixedly connected to its top and bottom. At the center of the inner wall of the moving block (302), a pushing block (303) is fixedly connected; The heat dissipation component (4) includes a heat dissipation shell (401) and a mounting frame (402) fixed to its outer wall. Above and below the inside of the heat dissipation shell (401), motors (403) are installed.

2. The on-load tap-changer on-off performance testing device according to claim 1, characterized in that, An embedded ring (101a) is fixedly connected to the inner wall of the inspection shell (101). Card holes (101b) are opened at the top and bottom of both outer walls of the embedded ring (101a).

3. The on-load tap-changer on-off performance testing device according to claim 2, characterized in that, Chute grooves (102) are provided above and below the outside of the through groove (103). At the center of the other side outer wall of the power-on / off detector body (1), a heat dissipation window (104) is installed.

4. The on-load tap-changer on-off performance testing device according to claim 1, characterized in that, Both ends of the rotating shaft (202) respectively penetrate through the bearings on the adjacent connecting plates (201a) and are fixedly connected to the inner wall of the through groove (103). A torsion spring (203) is sleeved on the outer wall of the rotating shaft (202).

5. The on-load tap-changer on-off performance testing device according to claim 3, characterized in that, Sliders (302a) are fixedly connected to the top and bottom edges of the inner wall of the moving block (302), and the sliders (302a) are located inside the chute grooves (102).

6. The on-load tap-changer on-off performance testing device according to claim 1, characterized in that, The output shaft of the motor (403) is connected to a transmission shaft (403a) through a coupling. The other end of the transmission shaft (403a) penetrates through the bearing on the inner wall of the heat dissipation shell (401) and is connected to the inner wall of a rotating plate (405).

7. The on-load tap-changer on-off performance testing device according to claim 6, characterized in that, A fan blade (404) is installed on the outer wall of the transmission shaft (403a), and the fan blade (404) is located inside the heat dissipation shell (401). Cleaning brushes (405a) are installed on the top and bottom of the inner wall of the rotating plate (405).

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