CN215118570U

CN215118570U - Oiling frock

Info

Publication number: CN215118570U
Application number: CN202120339759.8U
Authority: CN
Inventors: 张燕雄; 罗镇江; 吴银红; 易明双
Original assignee: Zhongshan Kaixuan Vacuum Science and Technology Co Ltd
Current assignee: Zhongshan Kaixuan Vacuum Science and Technology Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-12-10
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses an oiling frock, this oiling frock include takeover, flange, adjusting screw, level sensor, oil shield and transformer oil import pipe. The flange is fixedly connected to the top of the connecting pipe, and the central opening of the flange is communicated with the connecting pipe. The top end part of the adjusting screw rod is connected with the flange, the bottom end part of the adjusting screw rod extends out of the connecting pipe, and the extending length of the adjusting screw rod can be adjusted. The liquid level sensor is arranged at the bottom end part of the adjusting screw rod. The oil blocking cover is arranged on the adjusting screw rod and is positioned above the liquid level sensor. The transformer oil inlet pipe is communicated with the connecting pipe. This oiling frock can realize vacuum pumping, oiling and liquid level control through a pipe connection oiling mouth.

Description

Oiling frock

Technical Field

The utility model relates to an oiling technical field particularly, relates to an oiling frock.

Background

In the production and manufacturing process of the amorphous alloy transformer, in order to improve the insulating property of a product, the water content of equipment needs to be controlled, transformer oil needs to be filled into the transformer in the final manufacturing step, and a vacuum oil filling tool needs to be used at the moment. The transformer has been assembled when annotating oil in the vacuum and has been accomplished, can only leave an oil filler point and be used for filling transformer oil usually, nevertheless in vacuum oiling, need make the inside dehydration degasification of transformer to the first evacuation of transformer, carry out vacuum oiling again, also need place level sensor or adopt flow controller to control transformer oil in the transformer simultaneously, prevent to spill over after transformer oil fills and cause the production accident. However, because the transformer assembly is completed, there is no way to provide as many ports for evacuating the vent, placing the filler neck, and installing the level control sensor, and the conventional apparatus employs the following solutions:

1) and the oil is injected by adopting a small-caliber oil injection pipe and a flowmeter. Because only one interface is provided, the functions of evacuating air, exhausting air, placing an oil filling connecting pipe, installing a liquid level control sensor and the like are considered, part of manufacturers adopt a mode of reducing the diameter of an oil filling pipe to reserve an air outlet channel, and oil is filled by utilizing a flow meter to calculate transformer oil. However, the proposal can influence the oil injection flow rate due to the reduction of the oil injection caliber, and reduces the production efficiency. Meanwhile, the flowmeter is adopted to measure the transformer oil, so that the production cost is high due to the high price of the flowmeter, and the flowmeter can also cause the problem of insufficient oil injection or overflow of the transformer oil due to the influence of impurities such as bubbles in the transformer oil on the measurement precision.

2) And (5) disassembling the accessories for installing the transformer, and assembling after injecting oil. In order to meet the requirements of evacuating and exhausting air, placing an oil filling connecting pipe and installing a liquid level control sensor interface of equipment, part of accessories are disassembled on the assembled transformer, and the transformer is assembled again after vacuum oil filling. Therefore, the whole tightness of the transformer is damaged due to disassembly, the quality hidden danger caused by secondary assembly after oil injection exists, once the leakage rate is found after oil injection after disassembly, the injected transformer oil needs to be extracted again, and the product drying treatment is carried out again, so that the productivity effect is seriously influenced.

3) And an oil filling tool is adopted to integrate the oil filling connecting pipe and the liquid level sensor. Adopt the scheme that the oiling frock can solve various function interfaces, each equipment manufacturer all is different to oiling interface design, and some liquid level control can make the dismantlement frock have a small amount of transformer oil to flow above transformer fluid level, all needs cleaning at every turn. Some tools are heavy and inconvenient to disassemble.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oiling frock, this oiling frock can realize vacuum pumping, oiling and liquid level control through a pipe connection oiling mouth.

For realizing the purpose of the utility model, the utility model adopts the following technical scheme:

according to the utility model discloses an aspect provides an oiling frock. The oil injection tool comprises a connecting pipe, a flange, an adjusting screw, a liquid level sensor, an oil baffle cover and a transformer oil inlet pipe. The flange is fixedly connected to the top of the connecting pipe, and the central opening of the flange is communicated with the connecting pipe. The top end part of the adjusting screw rod is connected with the flange, the bottom end part of the adjusting screw rod extends out of the connecting pipe, and the extending length of the adjusting screw rod can be adjusted. The liquid level sensor is installed at the bottom end part of the adjusting screw rod. The oil blocking cover is arranged on the adjusting screw rod and is positioned above the liquid level sensor. The transformer oil inlet pipe is communicated with the connecting pipe.

According to the utility model discloses an embodiment, wherein, the takeover is taken over including upper portion and lower part, the upper portion rigid coupling that upper portion was taken over the flange and lower part detachable connect the lower part is taken over, the lower part is taken over and is connected the oiling mouth.

According to the utility model discloses an embodiment, wherein, the lower part that upper portion was taken over with the upper portion cover that the lower part was taken over is equipped with a pair of first quick-release chuck, two first quick-release chuck cooperation is and is fixed together through first quick-release clamp.

According to the utility model discloses an embodiment, wherein, the outside lower part processing that the lower part was taken over has the external screw thread, the inboard processing of oiling mouth has the internal thread, threaded connection is taken over to the lower part oiling mouth.

According to the utility model discloses an embodiment, wherein, the oiling frock still includes the couple of L shape, the couple includes horizontal segment and vertical section, wherein, the horizontal segment has the centre bore, and the width of horizontal segment is less than the central open-ended diameter of flange.

According to an embodiment of the present invention, the flange is provided with a pair of threaded holes symmetrically with respect to a center line thereof, and the hook is fixed to the flange by screwing a bolt into the threaded hole.

According to the utility model discloses an embodiment, wherein, the central axis of flange with the central axis coincidence of takeover, the diameter of the centre bore of flange is less than the internal diameter of takeover, adjusting screw's upper portion has the screw thread section, adjusting screw's screw thread section passes the centre bore of flange and will through first nut and second nut adjusting screw is fixed in the flange.

According to the utility model discloses an embodiment, wherein, transformer oil import pipe is the L venturi tube, and the lower tip of transformer oil import pipe is fixed to the upper portion is taken over.

According to an embodiment of the present invention, the lower end of the transformer oil inlet pipe has a protrusion extending to the inside of the upper adapter, and the protrusion is tapered from the top to the bottom.

According to the utility model discloses an embodiment, wherein, transformer oil import pipe's upper end with outside defeated oil pipe goes up the cover and is equipped with a pair of second quick-release chuck, two the cooperation of second quick-release chuck is and fixed together through the second quick-release clamp.

The utility model provides an embodiment has following advantage or beneficial effect:

the oil injection tool comprises a connecting pipe, one end of the connecting pipe can be connected to a reserved oil injection port of the amorphous alloy transformer, and the other end of the connecting pipe can be connected with an external vacuum tank, so that the amorphous alloy transformer can be vacuumized through the connecting pipe and the reserved oil injection port; the connecting pipe is communicated with a transformer oil inlet pipe, so that oil can be injected into the amorphous alloy transformer through the connecting pipe and the transformer oil inlet pipe; an adjusting screw rod is installed in the connecting pipe, the lower end part of the adjusting screw rod extends into the amorphous alloy transformer, and a liquid level sensor and an oil baffle cover covering the liquid level sensor are arranged at the lower end part of the adjusting screw rod, so that the liquid level control of the amorphous alloy transformer can be realized through the adjusting screw rod and the liquid level sensor. Therefore, the utility model discloses an oiling frock has realized that vacuum is bled, oiling and the integrative completion of liquid level control under the condition that does not change and predetermine the oiling mouth.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a schematic diagram illustrating an oil injection tool according to an exemplary embodiment.

Fig. 2 is a perspective view of an oiling tool shown in accordance with an exemplary embodiment.

Wherein the reference numerals are as follows:

1. an oil filling port; 2. taking over a pipe; 21. an upper connection pipe; 22. a lower connection pipe; 3. a flange; 31. a central opening; 4. hooking; 41. a horizontal segment; 42. a vertical section; 5. adjusting the screw rod; 51. a first nut; 52. a second nut; 6. a liquid level sensor; 7. an oil shield; 8. a transformer oil inlet pipe; 9. a first quick release chuck; 10. a first quick release clip; 11 a second quick release chuck; 12. a second quick release clip; 13. an amorphous alloy transformer; 14. an external oil delivery pipe.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The terms "a," "an," "the," "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.

The utility model discloses the first aspect of embodiment provides an oiling frock. Fig. 1 shows a schematic diagram of an oil injection tool provided by the utility model. Fig. 2 shows a perspective view of the oil injection tool provided by the utility model.

As shown in FIG. 1 and FIG. 2, the embodiment of the utility model provides an oiling frock is including taking over 2, flange 3, adjusting screw 5, level sensor 6, oil baffle cover 7 and transformer oil import pipe 8. The flange 3 is fixedly connected to the top of the nipple 2, and the central opening 31 of the flange 3 communicates with the nipple 2. The top end part of the adjusting screw rod 5 is connected with the flange 3, the bottom end part extends out of the connecting pipe 2, and the extending length is adjustable. The liquid level sensor 6 is installed at the bottom end portion of the adjusting screw 5. The oil baffle cover 7 is arranged on the adjusting screw rod 5 and is positioned above the liquid level sensor 6. The transformer oil inlet pipe 8 is communicated with the connecting pipe 2.

As shown in fig. 1 and 2, the utility model discloses an oiling frock for metallic glass transformer 13, this metallic glass transformer 13 is including being located its upper portion oiling mouth 1. The oil injection tool and the amorphous alloy transformer 13 are both positioned in the vacuum tank and are connected to the oil injection port 1 through the adapter tube 2. Wherein, the lower part of the connecting pipe 2 is connected with the oil filling port 1. The adapter tube 2 may be a hollow cylindrical thin-walled tube. The central axes of the adapter tube 2 and the flange 3 are overlapped, and the central opening 31 of the flange 3 is a vacuumizing air outlet for communicating the external vacuum tank with the amorphous alloy transformer 13. The central opening 31 of the flange 3 communicates the external vacuum tank and the amorphous alloy transformer 13. The adjusting screw rod 5 passes through the flange 3 and the connecting pipe 2 and extends into the amorphous alloy transformer 13. The adjusting screw 5 is rotatably connected to the flange 3. An oil deflector 7 is provided between the filler port 1 and the level sensor 6 to cover the level sensor 6. The transformer oil inlet pipe 8 is communicated with the external oil conveying pipe 14 and the connecting pipe 2. The utility model discloses an oiling frock is installed in oiling mouth 1 that metallic glass transformer 13 reserved, in detail, the utility model discloses a take over 2 of oiling frock is connected in metallic glass transformer 13's oiling mouth 1. The transformer can be filled by connecting the external oil delivery pipe 14 with the transformer oil inlet pipe 8, and the liquid level of the filled oil can be adjusted by the adjusting screw rod 5 so as to be suitable for products with different specifications. The upper part of the liquid level sensor 6 is also provided with an oil baffle cover 7, which can prevent the transformer oil from scouring the liquid level sensor 6 during oil injection and prevent the false alarm caused by the scouring.

In a preferred embodiment of the present invention, the connection pipe 2 comprises an upper connection pipe 21 and a lower connection pipe 22, the upper connection flange 3 of the upper connection pipe 21 is detachably connected to the lower connection pipe 22, and the lower connection pipe 22 is connected to the oil injection port 1.

As shown in fig. 1, the upper adapter 21 is longer than the lower adapter 22. Optionally, the flange 3 is welded to the upper adapter 21.

In a preferred embodiment of the present invention, the lower portion of the upper adapter 21 and the upper portion of the lower adapter 22 are sleeved with a pair of first quick release chucks 9, and the two first quick release chucks 9 are engaged and fixed together by a first quick release clamp 10.

As shown in fig. 1, the first quick release chuck 9 is fitted over the ends of the upper adapter 21 and the lower adapter 22, and has protrusions with a substantially trapezoidal cross section on both sides for the first quick release clamp 10 to be fixed. In this way, the upper adapter 21 can be easily removed from or attached to the lower adapter 22. Preferably, a sealing gasket is arranged between the two first quick-release chucks 9 to enhance the sealing performance thereof.

In a preferred embodiment of the present invention, the lower portion of the lower connecting pipe 22 is externally threaded, the inner side of the oil filling port 1 is internally threaded, and the lower connecting pipe 22 is threadedly connected to the oil filling port 1.

As shown in fig. 1, the external thread of the lower adapter 22 is fitted to the internal thread of the filler neck 1 to fix the lower adapter 22 to the filler neck 1.

In a preferred embodiment of the present invention, the oil injection tool further comprises an L-shaped hook 4, the hook 4 comprises a horizontal section 41 and a vertical section 42, wherein the horizontal section 41 has a central hole, and the width of the horizontal section 41 is smaller than the diameter of the central opening 31 of the flange 3.

As shown in fig. 1, when not in operation, the oil injection tool can be fixed to the wall of the vacuum tank outside the oil injection tool by using the vertical section 42 of the hook 4. The width of the horizontal segment 41 is smaller than the diameter of the central opening 31 of the flange 3 to ensure that the external vacuum tank and the amorphous alloy transformer 13 are communicated with each other.

In a preferred embodiment of the invention, the flange 3 is symmetrically provided with a pair of threaded holes with respect to its centre line a1, and the hooks 4 are fixed to the flange 3 by screwing bolts into the threaded holes.

The hook 4 can be fixed to the flange 3 in a number of ways. For example by welding, or may be integrally formed on the flange 3.

In a preferred embodiment of the present invention, the central axis of the flange 3 coincides with the central axis of the adapter 2, the diameter of the central hole of the flange 3 is smaller than the inner diameter of the adapter 2, the upper portion of the adjusting screw 5 has a threaded section, the threaded section of the adjusting screw 5 passes through the central hole of the flange 3 and fixes the adjusting screw 5 to the flange 3 by means of the first nut 51 and the second nut 52.

As shown in fig. 1, the adjusting screw 5 can move up and down. In the upper thread section, the first nut 51 and the second nut 52 are loosened, the adjusting screw 5 is adjusted to a proper position, and the first nut 51 and the second nut 52 are tightened to move the adjusting screw 5 up and down. The length of the thread section of the adjusting screw 5 can ensure that the up-and-down movement can be matched with the height adjustment of the liquid level sensor 6. Therefore, the height of the liquid level sensor 6 positioned inside the amorphous alloy transformer 13 can be adjusted by the up-and-down movement of the adjusting screw 5 outside the amorphous alloy transformer.

In a preferred embodiment of the present invention, the transformer oil inlet pipe 8 is an L-shaped pipe, and the lower end portion of the transformer oil inlet pipe 8 is fixed to the upper adapter 21.

As shown in fig. 1, the transformer oil inlet pipe 8 is an L-shaped pipe with two straight pipes at two sides and a middle circular pipe. The diameters of the two straight pipes are the same as that of the middle circular arc pipe. The upper straight pipe is used for connecting the external oil delivery pipe 14, and the lower straight pipe is used for connecting the upper connecting pipe 21. The lower part of the upper adapter 21 is provided with a hole, which is directly equal to the diameter of the transformer oil inlet pipe 8. The diameter of the transformer oil inlet pipe 8 is also the same as the diameter of the outer duct.

In a preferred embodiment of the present invention, the lower end of the transformer oil inlet pipe 8 has a protrusion extending to the inside of the upper adapter 21, the protrusion being tapered from the top to the bottom.

As shown in fig. 1, the upper side of the lower end portion of the transformer oil inlet pipe 8 protrudes into the upper adapter 21 without contacting the adjusting screw 5, and is tapered from the top to the bottom. Thus, the transformer oil entering the upper adapter tube 21 does not splash upward and smoothly flows downward into the amorphous alloy transformer 13.

In a preferred embodiment of the present invention, a pair of second quick release chucks 11 are sleeved on the upper end portion of the transformer oil inlet pipe 8 and the outer oil delivery pipe 14, and the two second quick release chucks 11 are matched and fixed together by a second quick release clamp 12.

As shown in fig. 1, the second quick release chuck 11 has a structure and shape similar to the first quick release chuck 9, and can rapidly realize the combination and separation between the transformer oil inlet pipe 8 and the external oil delivery pipe 14.

The embodiment of the utility model provides a pair of oiling frock. On one hand, the oil injection tool is provided with a connecting pipe 2 on an oil injection port 1, an adjusting bolt 5 is arranged at the upper part of the connecting pipe 2, the adjusting bolt 5 penetrates through the connecting pipe 2 to enter an amorphous alloy transformer 13, a liquid level sensor 6 is arranged at the lower part of the connecting pipe 2, a flange 3 with a central opening 31 is fixedly connected to the upper part of the connecting pipe 2, and a transformer oil inlet pipe 8 is connected to the side part of the connecting pipe 2, so that the functions of vacuumizing, oil injection and liquid level control are integrated. On the other hand, the adjusting screw 5 of the oil injection tool adjusts the height of the liquid level sensor 6 by adjusting the first nut 51 and the second nut 52 on the threaded section of the adjusting screw 5 up and down, so that the liquid level sensor 6 is suitable for liquid level products with different heights, and the liquid level sensor 6 is positioned in the amorphous alloy transformer 13, so that transformer oil leakage cannot be caused when other parts of the oil injection tool are disassembled. In the third aspect, the main parts of the oil injection tool, namely the connecting pipe 2 and the transformer oil inlet pipe 8, are both hollow tubular structures, so that the whole structure is light, the weight is about 2kg, and the oil injection tool is convenient to disassemble. In the fourth aspect, the upper connecting pipe 21 and the lower connecting pipe 22 and the transformer oil inlet pipe 8 and the external oil conveying pipe 14 are connected by quick-release clamps, so that the assembly and disassembly are convenient.

In the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description of the embodiments of the present invention and simplification of description, but do not indicate or imply that the indicated device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present invention.

In the description herein, the description of the terms "one embodiment," "a preferred embodiment," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. The utility model provides an oiling frock, its characterized in that includes:

a connecting pipe (2);

the flange (3) is fixedly connected to the top of the connecting pipe (2), and a central opening (31) of the flange (3) is communicated with the connecting pipe (2);

the top end part of the adjusting screw rod (5) is connected to the flange (3), the bottom end part of the adjusting screw rod (5) extends out of the connecting pipe (2), and the extending length of the adjusting screw rod can be adjusted;

the liquid level sensor (6), the said liquid level sensor (6) is mounted to the bottom end of the said adjusting screw (5);

the oil blocking cover (7) is arranged on the adjusting screw rod (5) and is positioned above the liquid level sensor (6); and

the transformer oil inlet pipe (8), the transformer oil inlet pipe (8) communicate with the connecting pipe (2).

2. The oiling tool according to claim 1, wherein the connecting pipe (2) comprises an upper connecting pipe (21) and a lower connecting pipe (22), the upper part of the upper connecting pipe (21) is fixedly connected with the flange (3) and the lower part of the upper connecting pipe is detachably connected with the lower connecting pipe (22), and the lower connecting pipe (22) is connected with the oiling port (1).

3. The oiling tool according to claim 2, wherein a pair of first quick-release chucks (9) are sleeved on the lower portion of the upper connecting pipe (21) and the upper portion of the lower connecting pipe (22), and the two first quick-release chucks (9) are matched and fixed together through a first quick-release clamp (10).

4. The oiling tool according to claim 2, wherein the lower part of the outer side of the lower connecting pipe (22) is provided with external threads, the inner side of the oiling port (1) is provided with internal threads, and the lower connecting pipe (22) is in threaded connection with the oiling port (1).

5. The oiling tool according to claim 1, further comprising an L-shaped hook (4), wherein the hook (4) comprises a horizontal section (41) and a vertical section (42), wherein the horizontal section (41) has a central hole, and the width of the horizontal section (41) is smaller than the diameter of the central opening (31) of the flange (3).

6. The oiling tool according to claim 5, characterized in that the flange (3) is symmetrically provided with a pair of threaded holes with respect to its centerline (A1), the hooks (4) being fixed to the flange (3) by screwing bolts into the threaded holes.

7. The oiling tool according to claim 1, wherein the central axis of the flange (3) coincides with the central axis of the adapter tube (2), the central hole of the flange (3) has a diameter smaller than the inner diameter of the adapter tube (2), the upper part of the adjusting screw (5) has a threaded section, and the threaded section of the adjusting screw (5) passes through the central hole of the flange (3) and fixes the adjusting screw (5) to the flange (3) through a first nut (51) and a second nut (52).

8. The oiling tool according to claim 2, wherein the transformer oil inlet pipe (8) is an L-shaped pipe, and the lower end of the transformer oil inlet pipe (8) is fixed to the upper adapter (21).

9. The oiling tool according to claim 8, wherein the lower end of the transformer oil inlet pipe (8) has a protrusion extending to the inside of the upper adapter (21), the protrusion being tapered from top to bottom.

10. The oiling tool according to claim 9, wherein an upper straight pipe of the transformer oil inlet pipe (8) is connected with an external oil delivery pipe (14), a pair of second quick-release chucks (11) is sleeved on the upper end of the transformer oil inlet pipe (8) and the external oil delivery pipe (14), and the two second quick-release chucks (11) are matched and fixed together through a second quick-release clamp (12).