Uninterrupted transformer oil filling device for distribution transformer

Abstract

The utility model provides an uninterrupted transformer oil filling device for a distribution transformer, which comprises a base, a main arm, an auxiliary arm, a first support arm, a second support arm, an electric sleeve mechanism, an oil filling mechanism and an oil storage mechanism, and the base is connected with the main arm through a first vertical telescopic mechanism; the main arm is connected with the auxiliary arm through a rotating mechanism; the auxiliary arm is connected with the first support arm and the second support arm through a horizontal telescopic mechanism; the first support arm is connected with the electric sleeve mechanism through a second vertical telescopic mechanism; the electric sleeve mechanism is matched with a bolt cover of the oil conservator; the second support arm is connected with the oil filling mechanism through a third vertical telescopic mechanism, an inlet of an oil filling pipe is communicated with the oil storage mechanism, and an outlet is telescopically arranged relative to the oil filling port of the conservator. Through cooperation of the telescopic mechanisms and the rotating mechanisms, the positions of the arms can be accurately adjusted, the electric sleeve mechanism is aligned with a bolt cover operation oil filling opening, the oil filling pipe is aligned with oil filling when the oil filling opening is opened, non-power-cut filling is achieved, and the oil filling efficiency and the power supply reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution transformer technology, and in particular to a device for adding transformer oil to a power distribution transformer without power interruption. Background Technology

[0002] Distribution transformers require periodic replenishment of transformer oil into the oil conservator. The oil conservator is an oil storage device used in distribution transformers to store oil and replenish the oil tank, ensuring that the oil tank is always full.

[0003] The applicant has discovered that the prior art has at least the following technical problems:

[0004] Currently, the method of replenishing transformer oil to the oil conservator of distribution transformers mostly relies on manual labor to carry the oil tank up the transformer platform, then manually unscrew the bolt cover of the oil conservator to open its oil filling port for manual oil filling. This poses significant safety hazards, and the oil filling process is dependent on manual control, resulting in low efficiency and susceptibility to environmental interference. Moreover, to ensure the safety of the workers, a power outage is required during manual oil filling, leading to power supply interruptions and affecting users' normal electricity use.

[0005] In view of the above, this utility model is hereby proposed. Utility Model Content

[0006] The purpose of this utility model is to provide a device for adding transformer oil to distribution transformers without power interruption, thereby solving the technical problems of existing technologies where adding transformer oil to the oil tank of a distribution transformer requires manual addition by climbing the transformer platform during a power outage, which cannot be achieved without power interruption, is cumbersome and complex, and poses safety hazards. The various technical effects of the preferred technical solution provided by this utility model are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a device for uninterrupted oil filling of a distribution transformer, comprising a base, a main arm, a secondary arm, a first support arm, a second support arm, a horizontal telescopic mechanism, a first vertical telescopic mechanism, a second vertical telescopic mechanism, a third vertical telescopic mechanism, a rotating mechanism, an electric sleeve mechanism, an oil filling mechanism, and an oil storage mechanism. The base is connected to the main arm via the first vertical telescopic mechanism; the main arm is connected to the secondary arm via the rotating mechanism; the secondary arm is connected to the first and second support arms via the horizontal telescopic mechanism; the first support arm is connected to the electric sleeve mechanism via the second vertical telescopic mechanism; the electric sleeve mechanism is adapted to the bolt cover of the oil conservator and can switch the opening and closing state of the oil filling port of the oil conservator; the second support arm is connected to the oil filling mechanism via the third vertical telescopic mechanism; the oil filling mechanism includes an oil filling assembly, the outlet end of the oil filling pipe of the oil filling assembly being telescopically configured relative to the oil filling port of the oil conservator.

[0009] Preferably, the oil injection mechanism includes a sealing assembly, which includes a sealing base plate, a sealing mounting plate, a sealing cylinder, a telescopic member, grippers, and a seal. The grippers are multiple and spaced circumferentially along the sealing mounting plate, and are rotatably connected to the sealing mounting plate. The fixed end of the sealing cylinder is connected to the telescopic end of the third vertical telescopic mechanism via the sealing base plate, and the movable end of the sealing cylinder is connected to the telescopic member. The telescopic member passes through the sealing mounting plate and is rotatably connected to the grippers. The seal is an annular structure and is sleeved on the grippers for mounting on the oil injection port of the oil tank.

[0010] Preferably, the oil injection mechanism further includes an adjustment assembly, which includes an adjustment box and an adjustment roller, a slider, an adjustment groove, and a reset member disposed in the adjustment box. The adjustment rollers are multiple and arranged in an S-shape, with adjacent adjustment rollers staggered vertically. The slider is disposed on the adjustment roller and slides in cooperation with the adjustment groove, with the opening directions of adjacent adjustment grooves facing opposite directions. The reset member connects the slider and the adjustment groove.

[0011] Preferably, the adjustment assembly further includes guide rollers, and the number of guide rollers is multiple, which are arranged sequentially along the extension path of the oil injection pipe on the horizontal telescopic mechanism, the third vertical telescopic mechanism and the sealing base plate.

[0012] Preferably, it also includes a fourth vertical telescopic mechanism. The sealing mounting plate has an opening for the oil injection pipe to pass through. The fourth vertical telescopic mechanism is disposed on the sealing base plate and connected to the oil injection pipe, and is used to drive the oil injection pipe closer to or away from the oil injection port.

[0013] Preferably, the rotating mechanism includes a rotating motor, a worm gear, and a worm wheel. The rotating motor is mounted on the main arm and is connected to the worm gear via a transmission connection. The worm wheel is connected to the secondary arm and meshes with the worm gear.

[0014] Preferably, the first vertical telescopic mechanism, the second vertical telescopic mechanism, the third vertical telescopic mechanism, the horizontal telescopic mechanism, and the fourth vertical telescopic mechanism all include a hydraulically driven telescopic mechanism, an electrically driven telescopic mechanism, or a pneumatically driven telescopic mechanism.

[0015] Preferably, it also includes a first camera, which is mounted on the first support arm or the fixed end of the second vertical telescopic mechanism, and its acquisition direction is towards the oil inlet.

[0016] Preferably, it also includes a first camera and a second camera. The first camera is mounted on the first support arm or on the fixed end of the second vertical telescopic mechanism, and the second camera is mounted on the second support arm or on the fixed end of the third vertical telescopic mechanism. The acquisition direction of both the first camera and the second camera is towards the oil inlet.

[0017] Preferably, the system further includes a control system, wherein the sealing cylinder, the rotating mechanism, the first vertical telescopic mechanism, the second vertical telescopic mechanism, the third vertical telescopic mechanism, the horizontal telescopic mechanism, the fourth vertical telescopic mechanism, the first camera, and the second camera are electrically connected to the control system.

[0018] Preferably, the inner wall of the sleeve of the electric sleeve mechanism is provided with a plurality of stepped grooves extending radially therefrom.

[0019] The preferred technical solution of this utility model can also produce at least the following technical effects:

[0020] This invention effectively avoids the technical problems existing in the prior art where adding transformer oil to the oil tank of a distribution transformer requires manual addition by climbing the transformer platform during a power outage, which cannot be done without power interruption, is cumbersome and complicated, and poses safety hazards.

[0021] This utility model provides a device for uninterrupted oil filling of a distribution transformer, comprising a base, a main arm, a secondary arm, a first support arm, a second support arm, a horizontal telescopic mechanism, a first vertical telescopic mechanism, a second vertical telescopic mechanism, a third vertical telescopic mechanism, a rotating mechanism, an electric sleeve mechanism, an oil filling mechanism, and an oil storage mechanism. The base is connected to the main arm via the first vertical telescopic mechanism; the main arm is connected to the secondary arm via the rotating mechanism; the secondary arm is connected to the first and second support arms via the horizontal telescopic mechanism; the first support arm is connected to the electric sleeve mechanism via the second vertical telescopic mechanism; the electric sleeve mechanism is adapted to the bolt cover of the oil tank and can switch the opening and closing state of the oil tank's oil filling port; the second support arm is connected to the oil filling mechanism via the third vertical telescopic mechanism; the inlet end of the oil filling pipe of the oil filling mechanism is connected to the oil storage mechanism, and the outlet end of the oil filling pipe is retractably configured relative to the oil filling port of the oil tank.

[0022] This invention utilizes the coordinated action of a first vertical telescopic mechanism, a rotating mechanism, a horizontal telescopic mechanism, a second vertical telescopic mechanism, and a third vertical telescopic mechanism. The device can precisely adjust the positions of the main arm, auxiliary arm, first support arm, and second support arm, allowing the sleeve of the electric sleeve mechanism to align with the bolt cover of the oil tank to open or close the oil inlet. After the oil inlet is opened, the oil inlet pipe of the oil inlet mechanism can be aligned with the inlet to perform oil inlet operations, improving oil inlet efficiency. This enables transformer oil filling operations to be performed even without power interruption to the distribution transformer, enhancing the reliability and stability of power supply. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a device for uninterrupted oil filling of a distribution transformer, provided by this utility model.

[0025] Figure 2 yes Figure 1 A magnified view of part A;

[0026] Figure 3 This is a schematic diagram of the structure of an adjustment component for a non-stop transformer oil filling device for distribution transformers provided by this utility model.

[0027] In the picture:

[0028] 1. Base; 2. Main boom; 3. Auxiliary boom; 4. First outrigger; 5. Second outrigger; 6. Telescopic hydraulic cylinder; 7. First motor; 8. First lead screw; 9. First nut; 10. First cylinder; 11. Second cylinder; 12. Connecting arm; 13. Rotary motor; 14. Worm gear; 15. Worm wheel; 16. Drive motor; 17. Magnetic sleeve; 1701. Stepped groove; 18. Oil injection pipe; 19. Oil pump; 20. Adjustment box; 21. Adjustment... 21. Segmented roller; 22. Slider; 23. Adjusting chute; 24. Spring; 25. Transition roller; 26. Guide roller; 27. Third cylinder; 28. Oil storage mechanism; 29. ​​First camera; 30. Second camera; 31. Guide rod; 32. Guide sleeve; 33. Sealing base plate; 34. Sealing mounting plate; 35. Sealing cylinder; 36. Telescopic component; 37. Gripper; 38. Seal; 39. First rotating connector; 40. Second rotating connector. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] like Figures 1-3 As shown, this utility model provides a device for uninterrupted oil filling of a distribution transformer, including a base 1, a main arm 2, a secondary arm 3, a first support arm 4, a second support arm 5, a horizontal telescopic mechanism, a first vertical telescopic mechanism, a second vertical telescopic mechanism, a third vertical telescopic mechanism, a rotating mechanism, an electric sleeve mechanism, an oil filling mechanism, and an oil storage mechanism 28. The base 1 is connected to the main arm 2 via the first vertical telescopic mechanism; the main arm 2 is connected to the secondary arm 3 via the rotating mechanism; the secondary arm 3 is connected to the first support arm 4 and the second support arm 5 via the horizontal telescopic mechanism; the first support arm 4 is connected to the electric sleeve mechanism via the second vertical telescopic mechanism; the electric sleeve mechanism is adapted to the bolt cover of the oil tank and can switch the opening and closing state of the oil filling port of the oil tank; the second support arm 5 is connected to the oil filling mechanism via the third vertical telescopic mechanism; the inlet end of the oil filling pipe 18 of the oil filling mechanism is connected to the oil storage mechanism 28, and the outlet end of the oil filling pipe 18 is telescopically configured relative to the oil filling port of the oil tank.

[0031] Through the coordinated action of the first vertical telescopic mechanism, the rotating mechanism, the horizontal telescopic mechanism, the second vertical telescopic mechanism, and the third vertical telescopic mechanism, the device can precisely adjust the positions of the main arm 2, the auxiliary arm 3, the first support arm 4, and the second support arm 5, so that the sleeve of the electric sleeve mechanism can be aligned with the bolt cover of the oil tank to open or close the oil inlet. After the oil inlet is opened, the oil inlet pipe 18 of the oil inlet mechanism can be aligned with the oil inlet to perform oil inlet operation, improving oil inlet efficiency and enabling transformer oil filling operation to be performed even without power interruption to the distribution transformer, thereby improving the reliability and stability of power supply.

[0032] Specifically, the base 1 serves as the supporting foundation of the device, is connected to the ground, and is connected to the main boom 2 through the first vertical telescopic mechanism, enabling the main boom 2 to perform lifting and lowering movements in the vertical direction.

[0033] The main boom 2 and the auxiliary boom 3 are connected by a rotating mechanism, which enables the auxiliary boom 3 to drive the electric sleeve mechanism and the oil injection mechanism to rotate relative to the main boom 2.

[0034] The auxiliary boom 3 is connected to the first arm 4 and the second arm 5 through a horizontal telescopic mechanism, so that the first arm 4 and the second arm 5 respectively drive the electric sleeve mechanism and the oil injection mechanism to perform telescopic movements in the horizontal direction.

[0035] The first arm 4 is connected to the electric sleeve mechanism through the second vertical telescopic mechanism, enabling the electric sleeve mechanism to perform lifting and lowering movements in the vertical direction.

[0036] The second arm 5 is connected to the oil injection mechanism through the third vertical telescopic mechanism, enabling the oil injection mechanism to perform lifting and lowering movements in the vertical direction.

[0037] Before oil filling, the electric sleeve mechanism opens the oil filling port so that the oil filling pipe 18 can be smoothly inserted into the oil filling port and injected with transformer oil. The electric sleeve mechanism is compatible with the bolt cover of the oil conservator. By rotating the bolt cover, the bolt cover is disengaged from the oil filling port to open the oil filling port, or the bolt cover is inserted into and tightened to close the oil filling port, thereby switching the oil conservator oil filling port between open and closed states.

[0038] When the oil injection pipe 18 is aligned with the oil injection port, the transformer oil is injected from the oil storage mechanism 28 into the oil reservoir through the oil injection pipe 18.

[0039] The outer walls of the base 1, main arm 2, auxiliary arm 3, first support arm 4, second support arm 5, horizontal telescopic mechanism, first vertical telescopic mechanism, second vertical telescopic mechanism, third vertical telescopic mechanism, rotating mechanism, electric sleeve mechanism, oil injection mechanism and oil storage mechanism 28 are provided with an insulating coating to improve safety during use.

[0040] As an optional implementation, such as Figure 2As shown, the oil injection mechanism includes a sealing assembly, which includes a sealing base plate 33, a sealing mounting plate 34, a sealing cylinder 35, a telescopic member 36, grippers 37, and a sealing member 38. Multiple grippers 37 are arranged at intervals along the circumference of the sealing mounting plate 34 and are rotatably connected to the sealing mounting plate 34 via a second rotating connector 40. The fixed end of the sealing cylinder 35 is connected to the telescopic end of the third vertical telescopic mechanism via the sealing base plate 33, and the movable end of the sealing cylinder 35 is connected to the telescopic member 36. The telescopic member 36 passes through the sealing mounting plate 34 and is rotatably connected to the grippers 37 via the second rotating connector. The sealing member 38 has an annular structure and is sleeved on the grippers 37 for mounting on the oil injection port of the oil tank.

[0041] The sealing cylinder 35 serves as the power source. When the sealing cylinder 35 extends, its movable end moves downwards in the vertical direction, driving the telescopic member 36 to move vertically as well. Since the telescopic member 36 is rotatably connected to the gripper 37, it applies a force to the gripper 37, causing the gripper 37 to rotate around the rotatable connection point with the sealing mounting plate 34. Because multiple grippers 37 are arranged circumferentially around the sealing mounting plate 34, driven by the sealing cylinder 35, the grippers 37 drive the sealing member 38 fitted on it to expand outwards, at which point the inner diameter of the sealing member 38 gradually increases.

[0042] When the sealing cylinder 35 retracts, it drives the telescopic member 36 to move vertically. Its movable end moves upwards vertically, also driving the telescopic member 36 to move vertically. Since the telescopic member 36 is rotatably connected to the gripper 37, it applies a force to the gripper 37, causing the gripper 37 to rotate in the opposite direction around its rotational connection point with the sealing mounting plate 34. The synchronized movement of multiple grippers 37 causes the sealing member 38 to retract inwards, gradually reducing its inner diameter. This allows the sealing member 38 to fit tightly onto the oil reservoir's filling port, improving sealing during the filling process and preventing transformer oil leakage.

[0043] Since the inner diameter of the seal 38 can be changed by the extension and retraction of the sealing cylinder 35, the seal 38 can adapt to oil inlets of different sizes, thus improving the versatility and applicability of the device.

[0044] As an optional implementation, a fourth vertical telescopic mechanism is also included. An opening is provided on the sealing mounting plate 34 for the oil injection pipe 18 to pass through. The fourth vertical telescopic mechanism is disposed on the sealing base plate 33 and connected to the oil injection pipe 18 for driving the oil injection pipe 18 to approach or move away from the oil injection port.

[0045] As an optional implementation, the first vertical telescopic mechanism, the second vertical telescopic mechanism, the third vertical telescopic mechanism, the horizontal telescopic mechanism, and the fourth vertical telescopic mechanism all include a hydraulically driven telescopic mechanism, an electrically driven telescopic mechanism, or a pneumatically driven telescopic mechanism.

[0046] Furthermore, the first vertical telescopic mechanism includes a first motor 7, a first lead screw 8, and a first nut 9. The first motor 7 is mounted on the base 1 and drives the first lead screw 8 to rotate. The main arm 2 is provided with a receiving cavity for accommodating the first lead screw 8. The first nut 9 is sleeved on the first lead screw 8 and connected to the main arm 2.

[0047] When the position of the main boom 2 needs to be adjusted, the first motor 7 is started, driving the first lead screw 8 to rotate. The rotational motion of the lead screw is converted into the linear motion of the nut through the transmission principle of the lead screw nut, which drives the main boom 2 to move up and down in the vertical direction.

[0048] A guide assembly is provided between the base 1 and the main boom 2. The guide assembly includes a guide rod 31 and a guide sleeve 32. The guide rod 31 is mounted on the base 1, and the main boom 2 has a cavity for accommodating the guide rod 31. The guide sleeve 32 is mounted on the main boom 2 and slidably sleeved on the guide rod 31. Through the sliding engagement of the guide sleeve 32 and the guide rod 31, the lifting and lowering movement of the main boom 2 is guided, ensuring the straightness and stability of the main boom 2's movement.

[0049] The second vertical telescopic mechanism includes a first cylinder 10, the fixed end of which is connected to the first support arm 4, and the movable end of which is connected to the electric sleeve mechanism via a connector.

[0050] When it is necessary to adjust the height of the electric sleeve mechanism, the first cylinder 10 is activated, and its movable end drives the electric sleeve mechanism to move in the vertical direction, so that the electric sleeve mechanism can reach a suitable height to open or close the oil inlet.

[0051] The third vertical telescopic mechanism includes a second cylinder 11, the fixed end of which is connected to the second support arm 5, and the movable end of which is connected to the oiling mechanism via a connector.

[0052] When it is necessary to adjust the height of the oil injection mechanism, the second cylinder 11 is activated, and its movable end drives the oil injection mechanism to move in the vertical direction, so that the oil injection mechanism reaches the appropriate height to perform the oil injection operation.

[0053] The fourth vertical telescopic mechanism includes a third cylinder 27, which is located on the bottom surface of the sealing mounting plate 34 and connected to the oil injection pipe 18 via a connector.

[0054] When it is necessary to adjust the relative position of the oil injection pipe 18 and the oil injection port, the third cylinder 27 is activated, and its movable end drives the oil injection pipe 18 to move in the vertical direction, so that the oil injection pipe 18 is accurately connected with the oil injection port.

[0055] The horizontal telescopic mechanism includes a telescopic hydraulic cylinder 6. The fixed end of the telescopic hydraulic cylinder 6 is connected to the auxiliary arm 3, and the movable end of the telescopic hydraulic cylinder 6 is connected to the first support arm 4 and the second support arm 5 through the connecting arm 12. The first support arm 4 and the second support arm 5 are arranged side by side on the connecting arm 12.

[0056] When it is necessary to adjust the horizontal position of the first arm 4 and the second arm 5, the telescopic hydraulic cylinder 6 is activated, and its movable end drives the first arm 4 and the second arm 5 to move linearly through the connecting arm 12.

[0057] As an optional implementation, such as Figure 3 As shown, the oil injection mechanism also includes an adjustment assembly, which includes an adjustment box 20 and adjustment rollers 21, sliders 22, adjustment grooves 23, and a reset component disposed within the adjustment box 20. There are multiple adjustment rollers 21, and adjacent adjustment rollers 21 are staggered vertically. The sliders 22 are disposed on the adjustment rollers 21 and slide in cooperation with the adjustment grooves 23, and the opening directions of adjacent adjustment grooves 23 are opposite. The reset component connects the sliders 22 and the adjustment grooves 23.

[0058] Furthermore, the adjustment assembly also includes a transition roller 25, which is located between the outlet of the oil storage mechanism 28 and the adjustment roller 21 closest to the outlet of the oil storage mechanism 28, and is used to guide the oil injection pipe 18 to smoothly transition from the oil storage mechanism 28 to the adjustment roller 21.

[0059] The regulating roller 21 closest to the outlet of the oil storage mechanism 28 is located on the upper part of the regulating box 20, and the regulating roller 21 adjacent to it is located on the lower part of the regulating box 20.

[0060] The reset component includes a spring 24, which connects to a slider 22 and an adjusting groove 23.

[0061] The inlet end of the oil injection pipe 18 is located inside the oil storage mechanism 28 and is connected to the oil pump 19. After extending from the outlet of the oil storage mechanism 28, the oil injection pipe 18 first passes around the transition roller 25, and then passes around multiple adjusting rollers 21 in the adjusting box 20 in sequence. The oil injection pipe 18 is wound in a serpentine pattern on the adjusting rollers 21, and finally extends out from the outlet of the adjusting box 20. At this time, the adjusting rollers 21, the slider 22, the adjusting groove 23, and the spring 24 are in a relatively stable initial position, and the spring 24 is in its natural state.

[0062] When the horizontal telescopic mechanism, the third vertical lifting mechanism, or the fourth vertical lifting mechanism extends, the oil injection pipe 18 is subjected to tension. Since the oil injection pipe 18 passes around multiple adjusting rollers 21, the force is transmitted to the adjusting rollers 21, causing them to rotate and move. The movement of the adjusting rollers 21 drives the slider 22 to move along the adjusting groove 23. At this time, the spring 24 is in a compressed state, causing the winding length of the oil injection pipe 18 in the adjusting box 20 to change, thereby adaptively adjusting the effective external length of the oil injection pipe 18 to adapt to the extension action of the telescopic mechanism.

[0063] When the telescopic mechanism retracts, it releases the tension on the oil injection pipe 18, and the spring 24 releases its stored elastic potential energy, driving the slider 22 to slide in the opposite direction within the adjusting groove 23, which in turn drives the adjusting roller 21 back to its initial position, restoring the oil injection pipe 18 to a relatively stable state and preparing it for subsequent oil injection operations.

[0064] As an optional implementation, the adjustment assembly also includes a plurality of guide rollers 26, which are arranged sequentially along the extension path of the oil injection pipe 18 on the horizontal telescopic mechanism, the third vertical telescopic mechanism and the sealing base plate 33.

[0065] After the oil injection pipe 18 extends out of the regulating box 20, it passes in sequence around the guide roller 26 on the telescopic hydraulic cylinder 6, the second cylinder 11 and the sealing base plate 33. The guide roller 26 provides support and guidance for the oil injection pipe 18 so that the oil injection pipe 18 always maintains the correct direction during the extension or retraction process.

[0066] As an optional implementation, the rotating mechanism includes a rotating motor 13, a worm 14, and a worm wheel 15. The rotating motor 13 is mounted on the main arm 2 and is connected to the worm 14 for transmission. The worm wheel 15 is connected to the auxiliary arm 3 and meshes with the worm 14.

[0067] The rotary motor 13 serves as the power source. When the rotary motor 13 starts, it drives the worm gear 14 to rotate. Since the worm wheel 15 meshes with the worm gear 14, it drives the worm wheel 15 to rotate the auxiliary arm 3, thereby enabling the auxiliary arm 3 to rotate relative to the main arm 2. This allows the electric sleeve mechanism and the oil injection mechanism to be precisely adjusted to the position corresponding to the oil filling port of the oil tank, ensuring the smooth progress of the oil injection operation and improving the accuracy and efficiency of oil injection.

[0068] As an optional implementation, it also includes a first camera 29 and a second camera 30. The first camera 29 is disposed on the first support arm 4 or on the fixed end of the second vertical telescopic mechanism, and the second camera 30 is disposed on the second support arm 5 or on the fixed end of the third vertical telescopic mechanism. The acquisition direction of the first camera 29 and the second camera 30 is both facing the oil inlet.

[0069] This setup enables the first camera 29 and the second camera 30 to capture images of the oil filling port in real time and transmit them to the control system. Based on the image information, the control system controls the actions of the sealing cylinder 35, the rotating mechanism, and the various telescopic mechanisms to achieve automated control of the oil filling process.

[0070] As an optional implementation, the system is also included, and the sealing cylinder 35, the rotating mechanism, the first vertical telescopic mechanism, the second vertical telescopic mechanism, the third vertical telescopic mechanism, the horizontal telescopic mechanism, the fourth vertical telescopic mechanism, the first camera 29 and the second camera 30 are electrically connected to the control system.

[0071] It should be noted that the specific circuit connection relationship between the sealed cylinder 35, the rotating motor 13, the first motor 7, the first cylinder 10, the second cylinder 11, the telescopic hydraulic cylinder 6, the third cylinder 27, the first camera 29, the second camera 30 and the control system adopts existing technology, and will not be elaborated here.

[0072] As an optional implementation, the inner wall of the magnetic sleeve 17 of the electric sleeve mechanism is provided with a plurality of stepped grooves 1701 extending radially therefrom.

[0073] Furthermore, the electric sleeve mechanism also includes a drive motor 16, which is connected to the movable end of the first cylinder 10. The drive motor 16 is used to drive the sleeve to rotate.

[0074] The inner diameter of the multiple stepped grooves 1701 gradually decreases radially from the outside to the inside, which allows the magnetic sleeve 17 to be adapted to oil pillow bolt caps of different sizes, thus improving the versatility of the magnetic sleeve 17.

[0075] The electric sleeve mechanism is driven by the first cylinder 10 to move vertically. The magnetic sleeve 17 approaches the bolt cover and is initially positioned using magnetic attraction. Once the magnetic sleeve 17 is stably fitted onto the bolt cover, the drive motor 16 starts, causing the magnetic sleeve 17 to rotate and drive the bolt cover to rotate in a predetermined direction, thereby opening the oil inlet.

[0076] Conversely, after the oil filling is completed, the drive motor 16 drives the sleeve to rotate in the opposite direction, so that the bolt cover is tightened again and the oil filling port is closed.

[0077] It should be noted that the specific structure of the electric sleeve mechanism adopts existing technology, which will not be elaborated here.

[0078] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0079] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0080] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "a particular example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for on-line filling of transformer oil in a power distribution transformer, characterized in that It includes a base, a main boom, a secondary boom, a first support boom, a second support boom, a horizontal telescopic mechanism, a first vertical telescopic mechanism, a second vertical telescopic mechanism, a third vertical telescopic mechanism, a rotating mechanism, an electric sleeve mechanism, an oil injection mechanism, and an oil storage mechanism; wherein, the base is connected to the main boom via the first vertical telescopic mechanism; the main boom is connected to the secondary boom via the rotating mechanism; and the secondary boom is connected to the first support boom and the second support boom via the horizontal telescopic mechanism; The first support arm is connected to the electric sleeve mechanism via the second vertical telescopic mechanism; the electric sleeve mechanism is adapted to the bolt cover of the oil tank and can switch the opening and closing state of the oil tank's oil inlet; The second arm is connected to the oil injection mechanism via the third vertical telescopic mechanism; the inlet end of the oil injection pipe of the oil injection mechanism is connected to the oil storage mechanism, and the outlet end of the oil injection pipe is telescopically configured relative to the oil filling port of the oil tank.

2. A device for filling transformer oil in a power distribution transformer without power cut according to claim 1, characterized in that, The oil injection mechanism includes a sealing assembly, which comprises a sealing base plate, a sealing mounting plate, a sealing cylinder, a telescopic component, grippers, and a seal. Multiple grippers are arranged circumferentially around the sealing mounting plate and are rotatably connected to it. The fixed end of the sealing cylinder is connected to the telescopic end of the third vertical telescopic mechanism via the sealing base plate. The movable end of the sealing cylinder is connected to the telescopic component, which passes through the sealing mounting plate and is rotatably connected to the grippers. The seal is an annular structure and is fitted onto the grippers for mounting on the oil injection port of the oil tank.

3. A device for non-stop oil filling of a distribution transformer according to claim 2, characterized in that, The oil injection mechanism further includes an adjustment assembly, which includes an adjustment box and an adjustment roller, a slider, an adjustment groove, and a reset component disposed within the adjustment box. There are multiple adjustment rollers arranged in an S-shape, with adjacent adjustment rollers staggered vertically. The slider is disposed on the adjustment roller and slides in cooperation with the adjustment groove, with the opening directions of adjacent adjustment grooves facing opposite directions. The reset component connects the slider and the adjustment groove.

4. The apparatus for filling transformer oil without power cut-off of the distribution transformer according to claim 3, characterized in that, The adjustment assembly also includes guide rollers, and there are multiple guide rollers arranged sequentially along the extension path of the oil injection pipe on the horizontal telescopic mechanism, the third vertical telescopic mechanism, and the sealing base plate.

5. A device for filling transformer oil in a power distribution transformer without power cut-off as claimed in claim 4 wherein, It also includes a fourth vertical telescopic mechanism. The sealing mounting plate has an opening for the oil injection pipe to pass through. The fourth vertical telescopic mechanism is disposed on the sealing base plate and connected to the oil injection pipe, and is used to drive the oil injection pipe to move closer to or away from the oil injection port.

6. A device for filling transformer oil in a power distribution transformer without power cut-off as claimed in claim 5 wherein, The rotating mechanism includes a rotating motor, a worm gear, and a worm wheel. The rotating motor is mounted on the main arm and is connected to the worm gear via a transmission. The worm wheel is connected to the secondary arm and meshes with the worm gear.

7. A device for filling transformer oil in a power distribution transformer without power cut-off as claimed in claim 6 wherein, The first vertical telescopic mechanism, the second vertical telescopic mechanism, the third vertical telescopic mechanism, the horizontal telescopic mechanism, and the fourth vertical telescopic mechanism all include hydraulically driven telescopic mechanisms, electrically driven telescopic mechanisms, or pneumatically driven telescopic mechanisms.

8. A device for non-stop oil filling of a distribution transformer according to claim 7, characterized in that, It also includes a first camera and a second camera. The first camera is mounted on the first support arm or the fixed end of the second vertical telescopic mechanism, and the second camera is mounted on the second support arm or the fixed end of the third vertical telescopic mechanism. The acquisition direction of both the first camera and the second camera is facing the oil inlet.

9. A device for filling transformer oil in a power distribution transformer without power cut-off as claimed in claim 8, wherein, It also includes a control system, wherein the sealing cylinder, the rotating mechanism, the first vertical telescopic mechanism, the second vertical telescopic mechanism, the third vertical telescopic mechanism, the horizontal telescopic mechanism, the fourth vertical telescopic mechanism, the first camera, and the second camera are electrically connected to the control system.

10. The apparatus for filling transformer oil without power cut of distribution transformer according to claim 1, characterized in that, The inner wall of the sleeve of the electric sleeve mechanism is provided with multiple stepped grooves extending radially therefrom.

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