Oil head sleeve sealing device with friction disintegrating slag adsorption function

Abstract

The utility model relates to the technical field of oil-supply head sealing, in particular to an oil-supply head sleeve sealing device capable of adsorbing friction disintegrating slag, which comprises an oil-supply head sleeve shell, and an operation oil pipe is rotatably inserted in the oil-supply head sleeve shell. According to the utility model, through the arrangement of the first sealing gasket, the first sealing gasket can seal the operation oil pipe, the oil head sleeve shell and the sealing shell in the process that the operation oil pipe rotates along with the water turbine, so that lubricating oil conveyed in the oil head sleeve shell is prevented from seeping out of the outside; when the operation oil pipe rotates, friction is generated between the operation oil pipe and the first sealing gasket, the friction enables chippings to be generated on the outer surface of the operation oil pipe, at the moment, the chippings can be adhered by the single-sided adhesive, the problem that the first sealing gasket is damaged and oil leaks due to the fact that the chippings accelerate to damage the first sealing gasket due to friction movement is avoided, the service life of the oil head sleeve sealing structure is prolonged, and the service life of the oil head sleeve sealing structure is prolonged. And the sealing performance between the oil head sleeve shell and the operation oil pipe is also improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil receiver sealing, in particular to an oil receiver sleeve sealing device with the function of adsorbing friction debris. Background Technique

[0002] The oil receiver sleeve is an important component in the water turbine governor. The function of the oil receiver is to connect the opening and closing operating pressure oil from the main distributing valve of the governor to the piston cylinder in the runner through the operating oil pipe, constituting an oil supply system for operating the runner blades. At the same time, the inner pipe of the operating oil pipe of the oil receiver forms a constant pressure oil source between the high-level oil tank and the entire inner cavity of the runner, acting on the seal of the mating surface flange between the sealing blade and the runner body to prevent water in the flow passage from entering the runner body and oil in the runner body from entering the flow passage;

[0003] It is found that the publication (announcement) number: CN205779423U discloses an oil receiver sealing device. In this technology, it is disclosed that "including an oil receiver body and an operating oil pipe, an off-position cavity skeleton seal ring is installed at the upper part of the connection between the oil receiver body and the operating oil pipe. The off-position cavity skeleton seal ring is installed in the sealing groove at the upper part of the operating oil pipe. The sizes of the sealing groove and the off-position cavity skeleton seal ring are the same to prevent the off-position cavity skeleton seal ring from loosening";

[0004] However, the above-mentioned existing oil receiver sealing device still has some disadvantages in use. Although the oil receiver sealing device can achieve the purpose of sealing between the operating oil pipe and the oil receiver, since the operating oil pipe rotates with the water turbine, this causes friction between the operating oil pipe and the oil receiver sleeve, and thus, no matter whether the operating oil pipe is made of plastic or metal, debris will be generated by friction. These debris may damage the sealing structure due to frictional movement, and finally, oil leakage problems are likely to occur.

[0005] To solve the above problems, an oil receiver sleeve sealing device with the function of adsorbing friction debris is proposed in this application. Content of the Utility Model

[0006] To solve the problems raised in the above background technique. The utility model provides an oil receiver sleeve sealing device with the function of adsorbing friction debris, which can adsorb the debris generated by the rotational friction of the operating oil pipe and is convenient for replacing the sealing structure.

[0007] To achieve the above object, the utility model provides the following technical solution: An oil receiver sleeve sealing device with the function of adsorbing friction debris, including an oil receiver sleeve housing, an operating oil pipe is rotatably inserted into the oil receiver sleeve housing, an off-position cavity is arranged in the oil receiver sleeve housing, an oil inlet is opened at the top of the operating oil pipe, the off-position cavity is communicated with the oil inlet, and further includes a sealing component arranged on one side of the oil receiver sleeve housing for sealing between the oil receiver sleeve housing and the operating oil pipe;

[0008] The sealing assembly includes a sealing shell, an annular convex part, a first sealing gasket and a single-sided adhesive. The sealing shell is fixedly connected to the housing of the oil receiver sleeve. The annular convex part is integrally formed on the sealing shell. The first sealing gasket is snap-fitted on the annular convex part. The single-sided adhesive is disposed on the first sealing gasket. The operating oil pipe is rotatably inserted into the inner ring of the first sealing gasket and contacts the single-sided adhesive.

[0009] As a preferred embodiment of the oil receiver sleeve sealing device with adsorption and friction of debris of the present utility model, a fixing port and a cavity are respectively formed on one side and inside of the sealing shell. The annular convex part is integrally formed in the fixing port. The housing of the oil receiver sleeve is communicated with the cavity.

[0010] As a preferred embodiment of the oil receiver sleeve sealing device with adsorption and friction of debris of the present utility model, a double-sided adhesive is bonded to the first sealing gasket. The double-sided adhesive is bonded to the single-sided adhesive, which can facilitate tearing the single-sided adhesive from the double-sided adhesive.

[0011] As a preferred embodiment of the oil receiver sleeve sealing device with adsorption and friction of debris of the present utility model, the first sealing gasket is a star-shaped sealing ring, and the material of the first sealing gasket is fluororubber. Since the shape of the star-shaped sealing ring is similar to "X", it can achieve the purpose of double-layer sealing, thereby further improving the sealing performance. In addition, since fluororubber has strong heat resistance, the first sealing gasket can be used normally in a high-temperature environment.

[0012] As a preferred embodiment of the oil receiver sleeve sealing device with adsorption and friction of debris of the present utility model, a disassembly and assembly component is further included, which is disposed on the housing of the oil receiver sleeve and the operating oil pipe for disassembling and assembling the housing of the oil receiver sleeve and the operating oil pipe to replace the single-sided adhesive. The disassembly and assembly component includes a first fixing member, a second fixing member and two second sealing gaskets. The first fixing member and the second fixing member are respectively fixedly sleeved on the opposite sides of the housing of the oil receiver sleeve and the operating oil pipe. The two second sealing gaskets are respectively disposed on the opposite sides of the first fixing member and the second fixing member, and the two second sealing gaskets are in contact with each other. A positioning bolt is threadedly inserted into one side of the second fixing member, and the end of the positioning bolt extends into the first fixing member. When the single-sided adhesive is covered with debris, the positioning bolt is screwed out from the first fixing member and the second fixing member, which can facilitate separating the housing of the oil receiver sleeve from the operating oil pipe. Then, the single-sided adhesive is torn off from the double-sided adhesive and replaced, so that the single-sided adhesive can be conveniently replaced and then continue to be used.

[0013] As a preferred embodiment of the oil receiver sleeve sealing device with adsorption and friction of debris of the present utility model, the number of the positioning bolts is multiple, and the multiple positioning bolts are threadedly inserted into one side of the second fixing member at equal intervals. The arrangement of the multiple positioning bolts can improve the connection stability between the first fixing member and the second fixing member.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. On this basis, a sealing component is added. By setting the first sealing gasket, during the rotation of the operating oil pipe following the water turbine, the first sealing gasket can seal between the operating oil pipe and the oil receiver sleeve housing and the sealing housing, preventing the lubricating oil transported in the oil receiver sleeve housing from leaking to the outside. In addition, when the operating oil pipe rotates, friction will be generated between it and the first sealing gasket, and this friction will cause debris to appear on the outer surface of the operating oil pipe. At this time, the debris can be adhered by the single-sided adhesive, avoiding the problem that the first sealing gasket is damaged by the accelerated friction movement of the debris and resulting in oil leakage due to the damage of the first sealing gasket, improving the service life of the sealing structure of the oil receiver sleeve and also improving the sealing performance between the oil receiver sleeve housing and the operating oil pipe;

[0016] 2. At the same time, a disassembly and assembly component is added on this basis. By screwing out the positioning bolts from the first fixing member and the second fixing member, it is convenient to separate the oil receiver sleeve housing from the operating oil pipe. Subsequently, tearing the single-sided adhesive from the double-sided adhesive and replacing it can conveniently replace the single-sided adhesive covered with debris, so as to continue to use and ensure the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the utility model and do not constitute a limitation to the utility model. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a three-dimensional structure schematic diagram of the internal half-sectional view of the utility model;

[0020] Figure 3 is for the utility model Figure 2 structural schematic diagram at position A;

[0021] Figure 4 is for the utility model Figure 1 structural schematic diagram at position B.

[0022] In the figure:

[0023] 1. Oil receiver sleeve housing; 2. Operating oil pipe; 3. Closing cavity; 4. Oil inlet; 5. Sealing housing; 6. Annular convex part; 7. First sealing gasket; 8. Single-sided adhesive; 9. Fixed port; 10. Cavity; 11. Double-sided adhesive; 12. First fixing member; 13. Second fixing member; 14. Second sealing gasket; 15. Positioning bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] As Figures 1-4 shown;

[0027] An oil receiver sleeve sealing device with adsorption and friction of debris, comprising an oil receiver sleeve housing 1, an operating oil pipe 2 is rotatably inserted into the oil receiver sleeve housing 1, a closed cavity 3 is arranged in the oil receiver sleeve housing 1, an oil inlet 4 is opened at the top of the operating oil pipe 2, and the closed cavity 3 is communicated with the oil inlet 4.

[0028] In this implementation: It is found that the publication (announcement) number: CN205779423U discloses an oil receiver sealing device, and this technology discloses that "it includes an oil receiver body and an operating oil pipe, and a closed cavity skeleton seal ring is installed on the upper part of the connection between the oil receiver body and the operating oil pipe. The closed cavity skeleton seal ring is installed in the sealing groove on the upper part of the operating oil pipe, and the sizes of the sealing groove and the closed cavity skeleton seal ring are the same to prevent the loosening of the closed cavity skeleton seal ring";

[0029] There are still some disadvantages in the existing oil receiver sealing device during use. Although the oil receiver sealing device can achieve the purpose of sealing between the operating oil pipe and the oil receiver, since the operating oil pipe rotates with the water turbine, this causes friction between the operating oil pipe and the oil receiver sleeve, and thus debris will be generated by friction regardless of whether the operating oil pipe is made of plastic or metal. These debris may damage the sealing structure due to frictional movement, and finally oil leakage problems are likely to occur. In view of the actual use, this problem is obviously a real and relatively difficult problem to solve. Therefore, in order to solve this technical problem, a sealing component and a disassembly and assembly component are added in this application document.

[0030] According to the above content, in order to avoid the debris generated by the rotation of the operating oil pipe 2 from damaging the first gasket 7, a sealing assembly is further included, which is arranged on one side of the oil receiver sleeve housing 1 and is used for sealing between the oil receiver sleeve housing 1 and the operating oil pipe 2. The sealing assembly includes a sealing shell 5, an annular convex part 6, a first gasket 7 and a single-sided adhesive 8. The sealing shell 5 is fixedly connected to the oil receiver sleeve housing 1. The annular convex part 6 is integrally formed on the sealing shell 5. The first gasket 7 is clamped on the annular convex part 6. The single-sided adhesive 8 is arranged on the first gasket 7. The operating oil pipe 2 rotates and is inserted into the inner circle of the first gasket 7 and contacts the single-sided adhesive 8. A fixing port 9 and a cavity 10 are respectively formed on one side and inside of the sealing shell 5. The annular convex part 6 is integrally formed in the fixing port 9. The oil receiver sleeve housing 1 communicates with the cavity 10.

[0031] In this implementation: during the rotation of the operating oil pipe 2 following the water turbine, the first gasket 7 can seal between the operating oil pipe 2, the oil receiver sleeve housing 1 and the sealing shell 5, avoiding the lubricating oil conveyed inside the oil receiver sleeve housing 1 from seeping out. In addition, when the operating oil pipe 2 rotates, friction will be generated between the operating oil pipe 2 and the first gasket 7, and the friction will cause debris to appear on the outer surface of the operating oil pipe 2. At this time, the debris can be adhered by the single-sided adhesive 8, avoiding the problem that the first gasket 7 is damaged by the accelerated friction movement of the debris and oil seeps out due to the damage of the first gasket 7, improving the service life of the oil receiver sleeve sealing structure, and also improving the sealing performance between the oil receiver sleeve housing 1 and the operating oil pipe 2.

[0032] In an alternative embodiment: a double-sided adhesive 11 is bonded to the first gasket 7, and the double-sided adhesive 11 is bonded to the single-sided adhesive 8. A disassembly and assembly assembly is further included, which is arranged on the oil receiver sleeve housing 1 and the operating oil pipe 2 and is used for disassembling and assembling the oil receiver sleeve housing 1 and the operating oil pipe 2 to replace the single-sided adhesive 8. The disassembly and assembly assembly includes a first fixing member 12, a second fixing member 13 and two second gaskets 14. The first fixing member 12 and the second fixing member 13 are respectively fixedly sleeved on the opposite sides of the oil receiver sleeve housing 1 and the operating oil pipe 2. The two second gaskets 14 are respectively arranged on the opposite sides of the first fixing member 12 and the second fixing member 13, and the two second gaskets 14 are in contact with each other. A positioning bolt 15 is threadedly inserted into one side of the second fixing member 13, and the end of the positioning bolt 15 extends into the first fixing member 12.

[0033] In this embodiment: on the basis of the above implementation, when the single-sided adhesive 8 is covered with debris, the positioning bolt 15 is screwed out from the first fixing member 12 and the second fixing member 13, which can conveniently separate the oil receiver sleeve housing 1 from the operating oil pipe 2. Then, the single-sided adhesive 8 is torn off from the double-sided adhesive 11 and replaced, so that the single-sided adhesive 8 can be conveniently replaced and then continue to be used.

[0034] In an alternative embodiment: the first gasket 7 is a star-shaped sealing ring, and the material of the first gasket 7 is fluororubber.

[0035] In this embodiment: Since the star-shaped sealing ring is shaped like an "X", it can achieve the purpose of double-layer sealing, thereby further improving the sealing performance. In addition, due to the strong high-temperature resistance of fluororubber, the first sealing gasket 7 can be used normally in a high-temperature environment.

[0036] In an alternative embodiment: The number of positioning bolts 15 is multiple, and the multiple positioning bolts 15 are threadedly inserted into one side of the second fixing member 13 at equal intervals.

[0037] In this embodiment: The arrangement of the multiple positioning bolts 15 can improve the connection stability between the first fixing member 12 and the second fixing member 13.

[0038] The working principle and usage process of the present utility model: During the process of the operating oil pipe 2 rotating following the water turbine, the first sealing gasket 7 can seal between the operating oil pipe 2, the oil receiver sleeve housing 1, and the sealing shell 5, preventing the lubricating oil transported inside the oil receiver sleeve housing 1 from leaking to the outside. In addition, when the operating oil pipe 2 rotates, friction will be generated between it and the first sealing gasket 7, and the friction will cause debris to appear on the outer surface of the operating oil pipe 2. At this time, the debris can be adhered by the single-sided adhesive 8, preventing the debris from accelerating the damage of the first sealing gasket 7 due to frictional movement and avoiding the problem of oil leakage caused by the damage of the first sealing gasket 7, improving the service life of the oil receiver sleeve sealing structure and also improving the sealing performance between the oil receiver sleeve housing 1 and the operating oil pipe 2. When the single-sided adhesive 8 is full of debris, the positioning bolts 15 are screwed out from the first fixing member 12 and the second fixing member 13, which can facilitate the separation of the oil receiver sleeve housing 1 and the operating oil pipe 2. Subsequently, the single-sided adhesive 8 is torn off from the double-sided adhesive 11 and replaced, and then the single-sided adhesive 8 can be conveniently replaced and thus continue to be used.

[0039] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An oil receiver sleeve sealing device with the function of absorbing friction debris, comprising an oil receiver sleeve housing (1), an operating oil pipe (2) being rotatably inserted in the oil receiver sleeve housing (1), a closing cavity (3) being arranged in the oil receiver sleeve housing (1), an oil inlet (4) being arranged at the top of the operating oil pipe (2), the closing cavity (3) being in communication with the oil inlet (4), and characterized in that: It also includes a sealing assembly arranged on one side of the oil receiver sleeve housing (1) and used for sealing between the oil receiver sleeve housing (1) and the operating oil pipe (2); The sealing assembly comprises a sealing shell (5), an annular protrusion (6), a first sealing gasket (7) and a single-sided adhesive tape (8); the sealing shell (5) is fixedly connected to the oil receiver sleeve housing (1); the annular protrusion (6) is integrally formed and arranged on the sealing shell (5); the first sealing gasket (7) is clamped on the annular protrusion (6); the single-sided adhesive tape (8) is arranged on the first sealing gasket (7); and the operating oil pipe (2) is rotatably inserted into the inner ring of the first sealing gasket (7) and contacts the single-sided adhesive tape (8).

2. The oil receiver sleeve sealing device with the function of absorbing friction debris according to claim 1, characterized in that: A fixing opening (9) and a cavity (10) are respectively provided on one side and inside of the sealing shell (5); the annular protrusion (6) is integrally formed and arranged in the fixing opening (9); and the oil receiver sleeve housing (1) and the cavity (10) are in communication.

3. The oil receiver sleeve sealing device with the function of absorbing friction debris according to claim 1, characterized in that: A double-sided adhesive tape (11) is bonded to the first sealing pad (7), and the double-sided adhesive tape (11) is bonded to the single-sided adhesive tape (8).

4. The oil receiver sleeve sealing device with the function of absorbing friction debris according to claim 1, characterized in that: The first sealing gasket (7) is a star-shaped sealing ring, and the material of the first sealing gasket (7) is fluororubber.

5. The oil receiver sleeve sealing device with the function of absorbing friction debris according to claim 1, characterized in that: It also includes a disassembly assembly arranged on the oil receiver sleeve housing (1) and the operating oil pipe (2), and is used for disassembling the oil receiver sleeve housing (1) and the operating oil pipe (2) to replace the single-sided adhesive tape (8). The disassembly assembly includes a first fixing member (12), a second fixing member (13) and two second sealing pads (14). The first fixing member (12) and the second fixing member (13) are respectively fixedly sleeved on opposite sides of the oil receiver sleeve housing (1) and the operating oil pipe (2). The two second sealing pads (14) are respectively arranged on opposite sides of the first fixing member (12) and the second fixing member (13), and the two second sealing pads (14) are abutted against each other. A positioning bolt (15) is threadedly inserted on one side of the second fixing member (13), and the end of the positioning bolt (15) extends into the first fixing member (12).

6. The oil receiver sleeve sealing device with the function of absorbing friction debris according to claim 5, characterized in that: There are a plurality of positioning bolts (15), and the plurality of positioning bolts (15) are threadedly inserted at equal intervals on one side of the second fixing member (13).

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