An oil replenishment mechanism for transformers

Abstract

This utility model provides an oil replenishment mechanism for transformers, relating to the technical field of oil replenishment devices. It includes an oil storage tank, a support base fixedly mounted on the lower surface of the tank, an oil pump fixedly mounted on the upper surface of the support base, an input end of the oil pump located inside the tank, a storage pipe installed at the top of the oil delivery pipe, a sliding tube slidably mounted inside the storage pipe, an oil outlet at one end of the sliding tube, and an adjustment component on the storage pipe. In this utility model, by rotating a lead screw, the lead screw and lead screw sleeve move forward, driving the sliding tube upward. When the sliding tube moves upward, a conical column enters the sliding tube. The longer the conical column enters, the more it blocks the sliding tube, reducing the internal space and thus controlling the oil flow rate and replenishment speed. Conversely, a shorter entry length increases the replenishment speed.

Description

Technical Field

[0001] This utility model relates to the field of oil replenishment device technology, and more specifically, to an oil replenishment mechanism for transformers. Background Technology

[0002] Transformer oil is an important element in the operation of transformers. Transformer oil can play an insulating role, with a much higher insulation strength than air, and can also prevent components from being corroded by moisture. For example, patent application number CN201410724926.5 describes a transformer oil replenishment device. Its features are: it includes an oil tank (1), in which an internal gear pump (7) is installed. The oil inlet of the internal gear pump (7) is located at the bottom of the oil tank (1), and its oil outlet is connected to one end of an oil pipe (6). The other end of the oil pipe (6) extends out of the oil tank (1). The drive shaft of the internal gear pump (7) is connected to one end of a transmission connecting rod (4), and the other end of the transmission connecting rod (4) extends out of the oil tank (1) and is connected to a crank handle (3), so that the internal gear pump (7) can be driven by rotating the crank handle (3). The transformer oil replenishing device of the present invention is convenient to use and low in cost. The device itself has the advantages of being lightweight and small in size, making it very suitable for field workers to carry. It is easy to operate, reduces workload and improves work safety. When replenishing oil for transformers of different specifications, it is necessary to adjust the oil replenishing speed to prevent some transformers from being replenished too quickly, which could lead to air inside the oil. In the above technical solution, the oil replenishing speed cannot be adjusted. Utility Model Content

[0003] The main objective of this invention is to provide an oil replenishment mechanism for transformers, which can effectively solve the problem in the prior art where, in the process of replenishing oil for transformers of different specifications, it is necessary to adjust the oil replenishment speed to prevent air from entering the oil after replenishment due to excessively fast oil replenishment speed. In the above-mentioned technical solutions, the oil replenishment speed cannot be adjusted.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an oil replenishment mechanism for a transformer, comprising an oil storage tank, a support base fixedly installed on the lower surface of the oil storage tank, an oil pump fixedly installed on the upper surface of the support base, an input end of the oil pump located inside the oil storage tank, an oil delivery pipe installed on the output end of the oil pump, a storage pipe installed at the top of the oil delivery pipe, a sliding tube slidably installed inside the storage pipe, an oil outlet installed at one end of the sliding tube, and an adjustment component provided on the storage pipe.

[0005] Preferably, the oil tank is provided with a tank cover at the top, and the upper surface of the tank cover is provided with an oil inlet.

[0006] Preferably, a mounting ring is fixedly installed on the circumference of the support base, and a plurality of mounting holes are equally spaced on the mounting ring.

[0007] Preferably, the adjustment assembly includes a mounting plate, a fixing ring, several connecting rods, and a second sealing groove. The mounting plate is installed on the storage pipe, the fixing ring is installed on the upper end of the slide tube, the several connecting rods are equidistantly installed on the inner wall of the storage pipe, and the second sealing groove is formed on the inner surface of the storage pipe.

[0008] Preferably, a lead screw is mounted on the mounting plate via a lead screw sleeve, and the lower end of the lead screw is rotatably mounted on the oil outlet.

[0009] Preferably, a baffle is fixedly installed between several connecting rods, and a tapered column is fixedly installed on the lower surface of the baffle. The tapered column is disposed inside the slide tube, and a first sealing groove is formed on the lower surface of the baffle.

[0010] Preferably, a first sealing ring is fixedly installed on the upper surface of the fixing ring, and the first sealing ring is disposed inside the first sealing groove; a second sealing ring is fixedly installed on the lower surface of the fixing ring, and the second sealing ring is disposed inside the second sealing groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) Connect the oil outlet to the transformer inlet. At this time, the oil pump works to draw the oil from the oil storage tank into the oil pipeline, and then the oil flows from the oil pipeline to the oil outlet and into the transformer. When it is necessary to adjust the oil flow rate at the oil outlet, the operator rotates the screw to move the screw and screw sleeve forward. This drives the slide tube to move upward. When the slide tube moves upward, the conical column will enter the slide tube. The longer the conical column enters, the more it will block the slide tube, reducing the space inside the slide tube, thereby controlling the oil flow rate and the oil replenishment speed. Conversely, it can increase the oil replenishment speed. This device can adjust the oil replenishment speed according to the transformer specifications to prevent the oil replenishment speed from being too fast and the presence of too much air after oil replenishment. When the slide tube contacts the baffle, the oil replenishment work will stop to prevent leakage during oil replenishment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of an oil replenishment mechanism for a transformer according to the present invention;

[0014] Figure 2 This is a side view schematic diagram of the overall structure of an oil replenishment mechanism for a transformer according to the present invention;

[0015] Figure 3This is a top view of the internal structure of the storage pipe of an oil replenishment mechanism for a transformer according to the present invention.

[0016] Figure 4 This is a bottom view of the internal structure of the storage pipe of an oil replenishment mechanism for a transformer according to the present invention.

[0017] In the diagram: 1. Oil reservoir; 2. Tank cover; 3. Oil inlet; 4. Support base; 5. Mounting ring; 6. Mounting hole; 7. Oil pump; 8. Oil pipeline; 9. Adjustment assembly; 901. Mounting plate; 902. Lead screw; 903. Lead screw sleeve; 904. Baffle plate; 905. Conical column; 906. First sealing groove; 907. Fixing ring; 908. First sealing ring; 909. Second sealing ring; 910. Connecting rod; 911. Second sealing groove; 10. Storage pipeline; 11. Sliding pipe; 12. Oil outlet. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 As shown, an oil replenishment mechanism for a transformer includes an oil storage tank 1. A support base 4 is fixedly installed on the lower surface of the oil storage tank 1. An oil pump 7 is fixedly installed on the upper surface of the support base 4. The input end of the oil pump 7 is located inside the oil storage tank 1. An oil delivery pipe 8 is installed at the output end of the oil pump 7. A storage pipe 10 is installed at the top of the oil delivery pipe 8. A sliding tube 11 is slidably installed inside the storage pipe 10. An oil outlet 12 is installed at one end of the sliding tube 11. An adjustment component 9 is provided on the storage pipe 10.

[0020] like Figure 1 As shown, the upper end of the oil storage tank 1 is provided with a tank cover 2, and the upper surface of the tank cover 2 is provided with an oil inlet 3, which facilitates the pouring of oil into the oil storage tank 1.

[0021] like Figure 1 As shown, an installation ring 5 is fixedly installed on the circumference of the support base 4. Several installation holes 6 are equally spaced on the installation ring 5 to facilitate the installation of this device on the transport device and ensure the stability of this device.

[0022] like Figure 2 , 3As shown in Figure 4, the adjustment assembly 9 includes a mounting plate 901, a fixing ring 907, several connecting rods 910, and a second sealing groove 911. The mounting plate 901 is mounted on the storage pipe 10, the fixing ring 907 is mounted on the upper end of the slide tube 11, the several connecting rods 910 are equidistantly mounted on the inner wall of the storage pipe 10, and the second sealing groove 911 is formed on the inner surface of the storage pipe 10. A lead screw 902 is mounted on the mounting plate 901 through a lead screw sleeve 903, and the lower end of the lead screw 902 is rotatably mounted on the oil outlet 12. A baffle 904 is fixedly installed between several connecting rods 910. A tapered column 905 is fixedly installed on the lower surface of the baffle 904 and is disposed inside the slide tube 11. A first sealing groove 906 is formed on the lower surface of the baffle 904. A first sealing ring 908 is fixedly installed on the upper surface of the fixing ring 907 and is disposed inside the first sealing groove 906. A second sealing ring 909 is fixedly installed on the lower surface of the fixing ring 907 and is disposed in the second sealing groove 910. Inside the transformer, the oil outlet 12 is connected to the transformer inlet. The oil pump 7 then draws oil from the oil storage tank 1 into the oil pipeline 8, from where it flows to the oil outlet 12 and into the transformer. When the oil flow rate from the outlet 12 needs adjustment, the operator rotates the lead screw 902, causing it to move forward in conjunction with the lead screw sleeve 903. This drives the slide tube 11 upwards, causing the conical column 905 to enter... As the tapered column 905 extends further into the slide tube 11, it will block the slide tube 11, reducing the internal space and thus controlling the oil flow rate and replenishment speed. Conversely, a shorter entry length will increase the replenishment speed. This device can adjust the replenishment speed according to the transformer specifications to prevent excessively fast replenishment and excessive air accumulation after replenishment. When the slide tube 11 contacts the baffle 904, the replenishment operation will stop to prevent further leakage.

[0023] The working principle of an oil replenishment mechanism for transformers:

[0024] When using this device to replenish oil in a transformer, first connect the oil outlet 12 to the transformer inlet. Then, the oil pump 7 operates, drawing oil from the oil storage tank 1 into the oil pipeline 8. The oil then flows from the pipeline 8 to the oil outlet 12 and into the transformer. To adjust the oil flow rate at the outlet 12, the operator rotates the lead screw 902, causing it to move forward in conjunction with the lead screw sleeve 903. This drives the slide tube 11 upwards. When the slide tube 11 moves upwards... When the tapered column 905 enters the slide tube 11, the longer the tapered column 905 enters, the more it will block the slide tube 11, reducing the internal space and thus controlling the oil flow rate and the oil replenishment speed. Conversely, the shorter the tapered column 905, the faster the oil replenishment speed. This device can adjust the oil replenishment speed according to the transformer specifications to prevent excessively fast oil replenishment and excessive air after oil replenishment. When the slide tube 11 contacts the baffle 904, the oil replenishment work will stop to prevent leakage.

[0025] The above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. An oil replenishment mechanism for a transformer, comprising an oil reservoir (1), characterized in that: A support base (4) is fixedly installed on the lower surface of the oil storage tank (1), and an oil pump (7) is fixedly installed on the upper surface of the support base (4). The input end of the oil pump (7) is located inside the oil storage tank (1), and an oil delivery pipe (8) is installed at the output end of the oil pump (7). A storage pipe (10) is installed at the top of the oil delivery pipe (8). A sliding tube (11) is slidably installed inside the storage pipe (10). An oil outlet (12) is installed at one end of the sliding tube (11), and an adjustment component (9) is provided on the storage pipe (10).

2. The oil replenishment mechanism for a transformer according to claim 1, characterized in that; The upper end of the oil storage tank (1) is provided with a tank cover (2), and the upper surface of the tank cover (2) is provided with an oil inlet (3).

3. The oil replenishment mechanism for a transformer according to claim 1, characterized in that: The support base (4) is fixedly installed with an installation ring (5) on its circumference, and the installation ring (5) has several installation holes (6) at equal intervals.

4. The oil replenishment mechanism for a transformer according to claim 1, characterized in that: The adjustment assembly (9) includes a mounting plate (901), a fixing ring (907), several connecting rods (910), and a second sealing groove (911). The mounting plate (901) is installed on the storage pipe (10), the fixing ring (907) is installed on the upper end of the slide pipe (11), several connecting rods (910) are equidistantly installed on the inner wall of the storage pipe (10), and the second sealing groove (911) is opened on the inner surface of the storage pipe (10).

5. The oil replenishment mechanism for a transformer according to claim 4, characterized in that: A lead screw (902) is mounted on the mounting plate (901) via a lead screw sleeve (903), and the lower end of the lead screw (902) is rotatably mounted on the oil outlet (12).

6. The oil replenishment mechanism for a transformer according to claim 5, characterized in that: A baffle (904) is fixedly installed between several of the connecting rods (910), and a tapered column (905) is fixedly installed on the lower surface of the baffle (904). The tapered column (905) is located inside the slide tube (11), and a first sealing groove (906) is opened on the lower surface of the baffle (904).

7. The oil replenishment mechanism for a transformer according to claim 6, characterized in that: A first sealing ring (908) is fixedly installed on the upper surface of the fixing ring (907), and the first sealing ring (908) is disposed inside the first sealing groove (906). A second sealing ring (909) is fixedly installed on the lower surface of the fixing ring (907), and the second sealing ring (909) is disposed inside the second sealing groove (911).

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