Transformer insulation aging monitoring device

Abstract

The invention discloses a transformer insulation aging monitoring device which comprises a base, an assembling base is arranged on the base, a socket is arranged on one side of the assembling base, sliding grooves are formed in the two opposite sides of the assembling base, a containing cavity is formed in one end of the assembling base, and a limiting assembly is arranged in the assembling base; the limiting assembly comprises two limiting plates, two sliding blocks, two pushing blocks and a two-way screw rod, the two sliding blocks and the two pushing blocks are correspondingly arranged in the two sliding grooves in a sliding mode, the two pushing blocks abut against the two sliding blocks, the two-way screw rod is rotationally arranged in the containing cavity, and the two-way screw rod is in threaded connection with the two sliding blocks; a monitoring equipment body is fastened in the mounting frame; and a protection cabinet. According to the transformer insulation aging monitoring device, rapid positioning and fixing of the protection cabinet can be achieved, and the problem of component displacement or looseness caused by vibration of equipment operation is effectively prevented; the structure is simple and dismounting is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of vegetable oil transformers, and in particular to a transformer insulation aging monitoring device. Background Art

[0002] The aging of transformer insulation performance is a gradual process, which is affected by a combination of factors, including operating voltage, temperature, humidity, oxygen content, and partial discharge inside the transformer. Insulation aging not only leads to a decline in transformer insulation performance and increases the risk of insulation breakdown, but may also cause transformer failures and even serious power outages, bringing huge economic losses and social impacts to the power system.

[0003] Existing transformer insulation aging monitoring devices often adopt a fixed installation structure, which is difficult to flexibly adjust according to the actual installation environment during the installation process. The installation process is cumbersome and complicated, requiring a lot of manpower and time. At the same time, the insulation aging monitoring elements inside the monitoring equipment are often directly fixed in the monitoring equipment by bolts. Under the influence of vibrations generated during the operation of the equipment, these components are prone to displacement or loosening, thereby affecting the normal operation of the equipment and the monitoring effect. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a transformer insulation aging monitoring device that can realize the rapid positioning and fixation of the protective cabinet, effectively preventing the displacement or loosening of components caused by vibration during equipment operation; the structure is streamlined and easy to disassemble and assemble.

[0005] In order to solve the above technical problems, the present invention provides a transformer insulation aging monitoring device, comprising: a base, an assembly base is provided on the base, a socket is provided on one side of the assembly base, and slide grooves communicating with the socket are provided on opposite sides of the assembly base, and a accommodating cavity communicating with the two slide grooves is opened at one end of the assembly base, and a limit assembly is installed inside the assembly base; the limit assembly includes: a limit plate, a slider, a push block and a bidirectional screw rod, and two limit plates, sliders and push blocks are each provided with two, and the two sliders and the two push blocks are respectively slidably mounted in the two slide grooves, and the two push blocks and The two sliders are in contact with each other, and the bidirectional screw is rotatably installed in the accommodating cavity, and the bidirectional screw is respectively threadedly connected to the two sliders; a mounting bracket is detachably connected to the assembly base, and the monitoring equipment body is fastened inside the mounting bracket; and a protective cabinet; wherein: the protective cabinet is inserted into the socket of the assembly base, and the bottoms of the two limit plates extend into the sockets respectively, and the two limit plates are respectively in contact with the opposite sides of the mounting bracket; the bidirectional screw is screwed to link the two sliders and the two push blocks to move back and forth, and the two push blocks are pressed against the two limit plates one by one, and the protective cabinet is quickly positioned through the limit assembly.

[0006] Among them, the limiting assembly also includes: a first bevel gear, a second bevel gear, a toggle member and a limiting pin, wherein: the first bevel gear is fixed to the middle part of the bidirectional screw, the second bevel gear is meshed with the first bevel gear, the connecting shaft of the second bevel gear is connected to the toggle member, and the limiting pin is fastened to the toggle member.

[0007] Wherein, guide grooves are respectively opened on both sides of the bottom of the protective cabinet, wherein: one side of the two push blocks passes through the two guide grooves and abuts against the two limit plates respectively.

[0008] Among them, a first telescopic rod is embedded in the side of the two guide grooves close to each other, and one end of the first telescopic rod is fixed to one side of the limit plate; a first spring is sleeved on the surface of the first telescopic rod, and the two ends of the first spring respectively abut against the wall of the guide groove and the limit plate.

[0009] Among them, the inner side of the protective cabinet is provided with a sliding groove for guiding the sliding of the limiting plate.

[0010] Wherein, a supporting bracket is installed in the protective cabinet, and the mounting frame is detachably adapted to be plugged into the supporting bracket.

[0011] Among them, the inner top wall of the protective cabinet is equipped with a second telescopic rod, the telescopic end of the second telescopic rod is equipped with a pressure plate, the second telescopic rod is sleeved with a second spring, and the two ends of the second spring are respectively in contact with the inner top wall of the protective cabinet and the pressure plate.

[0012] Among them, a display screen is provided on one side of the monitoring device body.

[0013] Among them, a cabinet door is hinged on one side of the protective cabinet, and an oil inlet pipe and an oil outlet pipe are fixed on the side of the protective cabinet away from the cabinet door. Sealing rings are respectively installed between the protective cabinet and the oil inlet pipe and the oil outlet pipe.

[0014] Wherein, a sealing end plate for sealing the opening end of the accommodating cavity is installed on one side of the assembly base.

[0015] The transformer insulation aging monitoring device of the present invention has the following beneficial effects: the transformer insulation aging monitoring device comprises: a base, an assembly base is provided on the base, a socket is provided on one side of the assembly base, and slide grooves communicating with the socket are provided on opposite sides of the assembly base, an accommodating cavity communicating with the two slide grooves is opened at one end of the assembly base, and a limiting component is installed inside the assembly base; the limiting component comprises: a limiting plate, a slider, a push block and a bidirectional screw rod, two limiting plates, two sliders and two push blocks are each provided, the two sliders and the two push blocks are respectively slidably installed in the two slide grooves, the two push blocks abut against the two sliders, and the bidirectional screw rod is rotatably installed in the accommodating cavity, The bidirectional screw is respectively threadedly connected to the two sliders; a mounting bracket is detachably connected to the assembly base, and the monitoring equipment body is fastened inside the mounting bracket; and a protective cabinet; wherein: the protective cabinet is inserted into the socket of the assembly base, and the bottoms of the two limit plates extend into the sockets respectively, and the two limit plates are respectively abutted on the opposite sides of the mounting bracket; the bidirectional screw is screwed to link the two sliders and the two push blocks to move back and forth, and the two push blocks are pressed against the two limit plates in a one-to-one correspondence, and the protective cabinet is quickly positioned by the limit assembly, which can realize rapid positioning and fixation of the protective cabinet, and effectively prevent the problem of component displacement or loosening caused by vibration during equipment operation; the structure is simple and easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The figure is a schematic diagram of the overall structure of a transformer insulation aging monitoring device according to an embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the structure of a protective cabinet according to an embodiment of the present invention.

[0019] Figure 3 Schematic cross-section of a protective cabinet according to an embodiment of the present invention.

[0020] Figure 4 Schematic diagram of the structure of the mounting frame according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic cross-sectional structural diagram of the protective cabinet being assembled toward the assembly base according to an embodiment of the present invention.

[0022] Figure 6 Schematic diagram of the cross-sectional structure of a transformer insulation aging monitoring device according to an embodiment of the present invention.

[0023] Figure 7For example, the present invention is implemented Figure 4 Schematic diagram of the enlarged structure of part B shown.

[0024] Figure 8 For example, the present invention is implemented Figure 1 Schematic diagram of the enlarged structure of part A shown.

[0025] Figure 9 Schematic diagram of the structure of the limit assembly according to an embodiment of the present invention.

[0026] Figure 10 This is a schematic diagram of the positions of the protective cabinet, the oil inlet pipe, and the oil outlet pipe according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] like Figures 1-10 FIG. 1 shows a first embodiment of a transformer insulation aging monitoring device according to the present invention.

[0029] The transformer insulation aging monitoring device in this embodiment includes: a base 1 , a mounting frame 21 and a protective cabinet 14 .

[0030] An assembly base 2 is provided on the base 1, a socket 4 is provided on one side of the assembly base 2, and slide grooves 5 communicating with the socket 4 are provided on opposite sides of the assembly base 2. A accommodating cavity 8 communicating with the two slide grooves 5 is opened at one end of the assembly base 2, and a limit component is installed inside the assembly base 2.

[0031] The limiting assembly includes: a limiting plate 19, a slider 6, a push block 7 and a bidirectional screw 9. There are two limiting plates 19, two sliders 6 and two push blocks 7. The two sliders 6 and the two push blocks 7 are respectively slidably mounted in the two slide grooves 5. The two push blocks 7 are in contact with the two sliders 6. The bidirectional screw 9 is rotatably mounted in the accommodating cavity 8. The bidirectional screw 9 is threadedly connected to the two sliders 6.

[0032] The mounting bracket 21 is detachably connected to the assembly base 2, and the monitoring device body 25 is fastened to the interior of the mounting bracket 21. The bottoms of the two limit plates 19 are extended into the sockets 4, and the protective cabinet 14 is inserted through the sockets 4 of the assembly base 2. The two limit plates 19 abut against opposite sides of the mounting bracket 21. Turning the bidirectional screw 9 causes the two sliders 6 and the two push blocks 7 to reciprocate, and the two push blocks 7 abut against the two limit plates 19 in a one-to-one correspondence, quickly positioning the protective cabinet 14 through the limit assembly.

[0033] Furthermore, the limiting assembly also includes: a first bevel gear 10, a second bevel gear 11, a toggle member 12 and a limiting pin 13, wherein: the first bevel gear 10 is fixed to the middle part of the bidirectional screw 9, the second bevel gear 11 is meshed with the first bevel gear 10, the connecting shaft of the second bevel gear 11 is connected to the toggle member 12, and the limiting pin 13 is fastened to the toggle member 12.

[0034] The accommodating chamber 8 is opened on one side of the assembly base 2. The accommodating chamber 8 is connected to the two slide grooves 5 and is arranged vertically. The bidirectional screw rod 9 can be rotatably accommodated in the accommodating chamber 8. The two sliders 6 are threadedly connected to the bidirectional screw rod 9. The two sliders 6 are slidably arranged in the accommodating chamber 8. The first bevel gear 10 is fixed to the middle of the bidirectional screw rod 9.

[0035] Preferably, a sealing end plate 3 is installed on one side of the assembly base 2 for sealing the open end of the accommodating cavity 8, and the second bevel gear 11 rotates on the inner side of the sealing end plate 3, the second bevel gear 11 is engaged with the first bevel gear 10, the connecting shaft of the second bevel gear 11 is fixed to the toggle member 12, and the limit pin 13 is threadedly connected to the toggle member 12.

[0036] Furthermore, the function of the two limiting plates 19 is: when the two limiting plates 19 abut against both sides of the mounting frame 21 , one side of the two push blocks 7 press against one side of the two limiting plates 19 respectively, thereby realizing rapid positioning of the protective cabinet 14 .

[0037] During installation, the protective cabinet 14 is inserted into the socket 4, and the toggle 12 is turned to rotate the second bevel gear 11 and the first bevel gear 10, thereby rotating the bidirectional screw 9. Under the guidance of the accommodating cavity 8, the two sliders 6 and their upper push blocks 7 are brought close to each other to fix the protective cabinet 14, effectively simplifying the installation process, reducing labor and time costs, and improving installation efficiency.

[0038] It can be understood that one section of the thread on the bidirectional screw rod 9 is a left-hand thread, and the other section is a right-hand thread, and the two sliders 6 are threadedly connected to the left-hand thread and the right-hand thread respectively.

[0039] Furthermore, a display screen 26 is provided on one side of the monitoring device body 25. The monitoring device body 25 is electrically connected to the display screen 26, which is used to display the data monitored by the monitoring device body 25 in real time. At the same time, the display screen 26 supports networking function, which can synchronize data with the remote monitoring center.

[0040] Furthermore, guide slots 15 are defined on both sides of the bottom of the protective cabinet 14. One side of each push block 7 passes through the two guide slots 15 and abuts against two stop plates 19. A first telescopic rod 17 is embedded in each of the adjacent guide slots 15, one end of which is secured to one side of the stop plate 19. A first spring 16 is sleeved on the surface of the first telescopic rod 17, with its two ends abutting against the wall of the guide slot 15 and the stop plate 19, respectively.

[0041] During implementation, the provision of the first spring 16 and the first telescopic rod 17 ensures that the limit plate 19, while pressing against the mounting frame 21, also provides a certain degree of cushioning. When the device vibrates during operation, the first spring 16 absorbs and cushions some of the vibration energy, while the first telescopic rod 17 provides guidance and support, limiting the movement of the limit plate 19. This effectively reduces the impact of vibration on the mounting frame 21 and the internal monitoring device body 25, further improving the stability and reliability of the device and ensuring the accuracy of monitoring data and the normal operation of the device. Furthermore, a sliding groove 18 is provided on the inner side of the protective cabinet 14 to guide the sliding of the limit plate 19. During implementation, the sliding groove 18 provides a clear sliding track for the limit plate 19. When the limit plate 19 is pushed by the push block 7 and moves, it can only slide smoothly along the sliding groove 18, avoiding directional deviation or shaking caused by disordered movement, ensuring that the limit plate 19 can accurately and tightly fit on both sides of the mounting frame 21, providing continuous and stable support for the mounting frame 21 and the monitoring device body 25 inside, and ensuring the accuracy of the monitoring data and the reliability of the equipment operation.

[0042] Furthermore, a support bracket 20 is installed in the protective cabinet 14, and the mounting frame 21 is detachably plugged into the support bracket 20. During implementation, a plug-in interface that matches the shape and size of the bottom of the mounting frame 21 is reserved at the top of the support bracket 20. When the installer places the mounting frame 21 into the protective cabinet 14, they only need to align the bottom of the mounting frame 21 with the plug-in interface at the top of the support bracket 20 to quickly complete the initial positioning, without the need to repeatedly adjust the position and angle, thereby improving installation efficiency. At the same time, the support bracket 20 provides a solid vertical support for the mounting frame 21. When the mounting frame 21 is installed on the support bracket 20, the gravity of the mounting frame 21 is evenly transferred to the support bracket 20 through the plug-in part, and then dispersed to the bottom of the protective cabinet 14 by the support bracket 20. It can effectively bear the weight of the mounting frame and its internal monitoring device body 25, preventing the mounting frame 21 from sinking due to gravity during long-term use, and ensuring that the equipment always maintains a stable working height.

[0043] When the monitoring device body 25 needs to be maintained, repaired or replaced, the entire device can be taken out of the protective cabinet 14 by simply pulling out the mounting bracket 21 from the supporting bracket 20. The operation is simple and quick, and there is no need to remove a large number of bolts, which shortens the disassembly time of the equipment. Similarly, after completing the maintenance or replacement, the mounting bracket 21 can be reinserted into the supporting bracket 20 to complete the installation and resume equipment operation.

[0044] Furthermore, the inner top wall of the protective cabinet 14 is equipped with a second telescopic rod 22, the telescopic end of the second telescopic rod is equipped with a pressure plate 23, and the second telescopic rod 22 is sleeved with a second spring 24, and the two ends of the second spring 24 are respectively in contact with the inner top wall of the protective cabinet 14 and the pressure plate 23.

[0045] This arrangement ensures that the second telescopic rod 22 at the top of the protective cabinet 14 drives the pressure plate 23 downward, creating a coordinated vertical fixation with the bottom support. The elastic action of the second spring 24 further strengthens the fixation, ensuring that the pressure plate 23 maintains a stable pressure on the top of the mounting bracket 21. This multi-directional fixation effectively prevents vertical movement and horizontal displacement of the mounting bracket 21. This further ensures the stability of the mounting bracket 21 within the protective cabinet 14, provides a stable operating environment for the monitoring device 25, and ensures the accuracy of monitoring data and the long-term stable operation of the equipment.

[0046] Furthermore, a door 27 is hingedly connected to one side of the protective cabinet 14. The closed space formed by the hinged connection between the door 27 and the protective cabinet 14 effectively isolates the monitoring device body 25 from the complex environment outside the transformer, reducing the negative impact of external interference on the monitoring results.

[0047] Furthermore, an oil inlet pipe 28 and an oil outlet pipe 29 are fixed to the side of the protective cabinet 14 away from the cabinet door 27. The two ends of the oil inlet pipe 28 and the oil outlet pipe 29 are connected to the monitoring device body 25 and the oil tank of the transformer respectively, so that the monitoring device body 25 can monitor the transformer oil in the tank in real time, thereby reflecting the aging of the internal insulation of the vegetable oil transformer. Furthermore, sealing rings 30 are installed between the protective cabinet 14 and the oil inlet pipe 28 and the oil outlet pipe 29. During the transformer oil circulation process, the sealing rings 30 can effectively prevent oil from leaking from the connection, avoiding oil leakage from polluting and damaging the surrounding environment and equipment of the transformer.

[0048] During implementation, the transformer insulation aging monitoring device of this embodiment only requires placing the mounting frame 21 into the protective cabinet 14 and operating the slider 6 to cause the push block 7 to push the two limit plates 19 against the mounting frame 21. This completes the installation process without the need for complex bolt tightening and precise position calibration, simplifying the installation process and improving installation efficiency. Furthermore, during equipment maintenance or replacement, the slider 6 can be reversed to separate the push block 7 from the limit plates 19. The limit plates 19 automatically reset under the elastic action of the first spring 16, allowing the mounting frame 21 and the internal monitoring device body 25 to be easily removed, reducing maintenance difficulty and cost. Furthermore, the limit plates 19 are slidably arranged within the protective cabinet 14. When the limit assembly limits the protective cabinet 14, the two limit plates 19 simultaneously approach each other and abut against both sides of the mounting frame 21, effectively preventing component displacement or loosening caused by vibration during equipment operation. This in turn improves the stability of the monitoring device body and its connected components, ensures the reliability of equipment operation, and thus enhances the accuracy and effectiveness of insulation aging monitoring.

[0049] The transformer insulation aging monitoring device in this embodiment has the following beneficial effects: the transformer insulation aging monitoring device includes: a base, an assembly base is provided on the base, a socket is provided on one side of the assembly base, and slide grooves communicating with the socket are provided on opposite sides of the assembly base, and a receiving cavity communicating with the two slide grooves is opened at one end of the assembly base, and a limit assembly is installed inside the assembly base; the limit assembly includes: a limit plate, a slider, a push block and a bidirectional screw rod, and there are two limit plates, sliders and push blocks, and the two sliders and the two push blocks are respectively slidably installed in the two slide grooves, and the two push blocks are abutted against the two sliders. The bidirectional screw rod is rotatably installed in the receiving cavity, and the two The two-way screw rod is respectively threadedly connected to the two sliders; a mounting bracket is detachably connected to the assembly base, and the monitoring equipment body is fastened inside the mounting bracket; and a protective cabinet; wherein: the bottoms of the two limit plates are respectively extended to the sockets, the protective cabinet is inserted into the sockets of the assembly base, and the two limit plates are respectively abutted on the opposite sides of the mounting bracket; the two-way screw rod is screwed to link the two sliders and the two push blocks to move back and forth, and the two push blocks are abutted against the two limit plates in a one-to-one correspondence, and the protective cabinet is quickly positioned by the limit assembly, which can realize rapid positioning and fixation of the protective cabinet, and effectively prevent the problem of component displacement or loosening caused by vibration during equipment operation; the structure is simple and easy to disassemble and assemble.

Claims

1. A transformer insulation aging monitoring device, characterized in that: include: A base, wherein an assembly base is provided on the base, a socket is provided on one side of the assembly base, and slide grooves communicating with the socket are provided on opposite sides of the assembly base, an accommodating cavity communicating with the two slide grooves is opened at one end of the assembly base, and a limit assembly is installed inside the assembly base; The limiting assembly includes: a limiting plate, a slider, a push block and a bidirectional screw rod, wherein two limiting plates, two sliders and two push blocks are provided, the two sliders and two push blocks are slidably mounted in the two slide grooves in a one-to-one correspondence, the two push blocks are correspondingly abutted against the two sliders, the bidirectional screw rod is rotatably mounted in the accommodating cavity, and the bidirectional screw rod is threadedly connected to the two sliders respectively; a mounting bracket detachably connected to the assembly base, wherein the monitoring device body is fastened to the interior of the mounting bracket; and Protective cabinet; wherein: the protective cabinet is inserted into the socket of the assembly base, the bottoms of the two limit plates extend into the sockets respectively, and the two limit plates abut against opposite sides of the mounting frame respectively; The two-way screw rod is screwed to link the two sliders and the two push blocks to move back and forth, and the two push blocks are pressed against the two limit plates in a one-to-one correspondence, and the protective cabinet is quickly positioned through the limit assembly.

2. The transformer insulation aging monitoring device according to claim 1, characterized in that: The limiting assembly further includes: a first bevel gear, a second bevel gear, a toggle member and a limiting pin, wherein: The first bevel gear is fixed to the middle of the bidirectional screw, the second bevel gear is meshed with the first bevel gear, the connecting shaft of the second bevel gear is connected to the toggle member, and the limit pin is fastened to the toggle member.

3. The transformer insulation aging monitoring device according to claim 2, characterized in that: Guide grooves are respectively provided on both sides of the bottom of the protective cabinet, wherein one side of the two push blocks passes through the two guide grooves and abuts against the two limit plates respectively.

4. The transformer insulation aging monitoring device according to claim 3, characterized in that: A first telescopic rod is embedded in the side of the two guide grooves close to each other, and one end of the first telescopic rod is fixed to one side of the limit plate; a first spring is sleeved on the surface of the first telescopic rod, and the two ends of the first spring respectively abut against the wall of the guide groove and the limit plate.

5. The transformer insulation aging monitoring device according to claim 3, characterized in that: A sliding groove for guiding the sliding of the limiting plate is provided on the inner side of the protective cabinet.

6. The transformer insulation aging monitoring device according to claim 1, characterized in that: A supporting bracket is installed in the protective cabinet, and the mounting frame is detachably adapted to be plugged into the supporting bracket.

7. The transformer insulation aging monitoring device according to claim 1, characterized in that: The inner top wall of the protective cabinet is equipped with a second telescopic rod, the telescopic end of the second telescopic rod is equipped with a pressure plate, and the second telescopic rod is sleeved with a second spring, and the two ends of the second spring are respectively in contact with the inner top wall of the protective cabinet and the pressure plate.

8. The transformer insulation aging monitoring device according to claim 1, characterized in that: A display screen is provided on one side of the monitoring device body.

9. The transformer insulation aging monitoring device according to claim 1, characterized in that: A cabinet door is hinged on one side of the protective cabinet, and an oil inlet pipe and an oil outlet pipe are respectively fixed on a side of the protective cabinet away from the cabinet door. Sealing rings are respectively installed between the protective cabinet and the oil inlet pipe and the oil outlet pipe.

10. The transformer insulation aging monitoring device according to claim 1, characterized in that: A sealing end plate for sealing the open end of the accommodating cavity is installed on one side of the assembly base.

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