Combined sealing unit structure convenient to disassemble and assemble

Abstract

The invention provides a combined type sealing unit structure convenient to disassemble and assemble. The combined type sealing unit structure comprises a flange ring, a middle ring, a cover ring, an oil collecting ring, a lining, a clamping ring and a sealing ring combination. The flange ring, the middle ring, the cover ring and the oil collecting ring are sequentially connected and arranged on the lining in a sleeving mode. An annular boss is arranged at the end, close to the oil collecting ring, of the lining, and the distance between the annular boss and the oil collecting ring is d. The sealing ring combination comprises a first sealing ring and a second sealing ring; a first lip is arranged at the contact part of the first sealing ring and the bushing; a second lip is arranged at the contact part of the second sealing ring and the bushing; the distance d between the annular boss and the oil collecting ring is larger than the width of the first lip and the width of the second lip. After the sealing unit is used for a period of time, when it is detected that a certain scratch depth exists at the contact position of the lining and the sealing ring and the oil leakage amount is large, the lining can be moved towards the direction of the oil collecting ring by the width size of one first lip or the second lip, and the service life of the sealing unit can be prolonged to be more than two times that of a normal structure.

Description

Technical Field

[0001] The invention belongs to the technical field of ship bearings, in particular to a combined sealing unit structure that is easy to disassemble and assemble. Background Art

[0002] Large ship bearing units have seals that require easy disassembly and assembly, reliable sealing, and extended service life based on operating conditions and maintenance requirements. The processing technology and disassembly requirements of existing structural seals cannot meet this requirement. Summary of the invention

[0003] In view of the above problems, the purpose of this application is to provide a combined sealing unit structure that is easy to disassemble and assemble, so that by adopting a combined unit design, the processing technology and disassembly requirements are solved, and the user's needs for the use of the sealing ring are met.

[0004] To achieve some or all of the above-mentioned purposes or other purposes, the present application provides the following technical solutions: a combined sealing unit structure that is easy to disassemble and assemble, comprising a flange ring, an intermediate ring, a cover ring, an oil collecting ring, a bushing, a clamping ring and a sealing ring combination; the flange ring, the intermediate ring, the cover ring and the oil collecting ring are connected in sequence, and the flange ring, the intermediate ring, the cover ring and the oil collecting ring are sleeved on the bushing; an annular boss is provided on the end of the bushing close to the oil collecting ring, and the annular boss is spaced a distance d from the oil collecting ring; the end of the annular boss away from the oil collecting ring is connected to the clamping ring; the sealing ring combination comprises a first sealing ring and a second sealing ring, the first sealing ring and the second sealing ring are sleeved on the bushing, the first sealing ring is arranged between the flange ring and the intermediate ring, and a first lip is arranged at the contact portion between the first sealing ring and the bushing; the second sealing ring is arranged between the intermediate ring and the cover ring, and a second lip is arranged at the contact portion between the second sealing ring and the bushing; the distance d between the annular boss and the oil collecting ring is greater than the width of the first lip and the second lip.

[0005] Furthermore, the sealing ring combination also includes a third sealing ring, a sealing felt ring and an O-ring; the third sealing ring is sleeved on the bushing, the third sealing ring and the bushing are interference fit, and the third sealing ring is arranged between the contact part between the cover ring and the bushing and the contact part between the oil collecting ring and the bushing; the sealing felt ring is sleeved on the bushing, and the sealing felt ring is arranged in the sealing groove of the inner diameter of the oil collecting ring; the contact part between the inner diameter of the bushing and the clamping ring is designed to be a 45° chamfer, and an O-ring is arranged in the 45° chamfer.

[0006] Furthermore, the contact surfaces between the first sealing ring and the flange ring and the intermediate ring are arc-shaped; the contact surfaces between the second sealing ring and the intermediate ring and the cover ring are arc-shaped.

[0007] Furthermore, the first sealing ring and the second sealing ring are the same.

[0008] Furthermore, it also includes a No. 1 hexagon socket screw, a No. 2 hexagon socket screw, a No. 1 hexagon head bolt, and a gasket; the flange ring and the intermediate ring are fixedly connected by the No. 1 hexagon socket screw; the intermediate ring and the cover ring are fixedly connected by the No. 2 hexagon socket screw; the cover ring and the oil collecting ring are fixedly connected by the No. 1 hexagon head bolt, and a gasket is arranged between the cover ring and the oil collecting ring.

[0009] Furthermore, it also includes a No. 2 hexagon head bolt; the No. 2 hexagon head bolt axially penetrates the flange ring.

[0010] Furthermore, it also includes a No. 3 hexagon socket screw; the bushing and the clamping ring are fixedly connected by the No. 3 hexagon socket screw, and the head of the No. 3 hexagon socket screw is arranged inside the clamping ring.

[0011] Furthermore, the middle ring is provided with radially penetrating oil holes, and there are a plurality of the oil holes.

[0012] Furthermore, it also includes a No. 4 hexagon socket screw, which is arranged on the clamping ring; the oil collecting ring is a split structure, and the clamping ring is a split structure, which is divided into two halves, and the two halves are fixedly connected by a No. 4 hexagon socket screw.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. After being used for a period of time, if it is found that there is a certain depth of scratches at the contact between the bushing 5 and the sealing ring, and the amount of oil leakage is large, the bushing 5 can be moved toward the oil collecting ring 4 by a wider width dimension of the first lip or the second lip, and can continue to be used normally, thereby achieving the technical effect of extending the life of the sealing unit to more than twice that of the normal structure. 2. The processing process is simplified and the sealing effect is good. 3. After the sealing ring is deformed by the oil pressure, it can only rely on the middle ring and the cover ring 3 to withstand the internal pressure of the unit when it fits on the arc surface, thereby making up for the disadvantage of insufficient strength of the skeleton-free sealing ring. 4. The external component structure realizes the disassembly and assembly of the sealing ring by removing the hexagonal head bolts, which facilitates disassembly and enhances the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure after the bushing is moved; Figure 3 It is a three-dimensional schematic diagram of the present invention; In the figure: 1. Flange ring; 2. Intermediate ring; 3. Cover ring; 4. Oil collecting ring; 5. Bushing; 6. Clamping ring; 7-1. First sealing ring; 7-2. Second sealing ring; 8. Third sealing ring; 9. Sealing felt ring; 10. O-ring; 11. No. 1 hexagon socket screw; 12. No. 2 hexagon socket screw; 13. No. 1 hexagon head bolt; 14. No. 2 hexagon head bolt; 15. Gasket; 16. Oil hole; 17. Hexagon socket screw; 18. Hexagon socket screw. DETAILED DESCRIPTION

[0015] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] See attached Figure 1-3 , a combined sealing unit structure that is easy to disassemble and assemble, comprising a flange ring 1, an intermediate ring 2, a cover ring 3, an oil collecting ring 4, a bushing 5, a clamping ring 6 and a sealing ring assembly; the flange ring 1, the intermediate ring 2, the cover ring 3 and the oil collecting ring 4 are connected in sequence, and the flange ring 1, the intermediate ring 2, the cover ring 3 and the oil collecting ring 4 are sleeved on the bushing 5; an annular boss is arranged on the end of the bushing 5 close to the oil collecting ring 4, and the annular boss is spaced apart from the oil collecting ring 4 by a distance d; the end of the annular boss away from the oil collecting ring 4 is connected to the clamping ring 6; the sealing ring The sealing ring combination includes a first sealing ring 7-1 and a second sealing ring 7-2. The first sealing ring 7-1 and the second sealing ring 7-2 are sleeved on the bushing 5. The first sealing ring 7-1 is arranged between the flange ring 1 and the intermediate ring 2, and a first lip is arranged at the contact portion between the first sealing ring 7-1 and the bushing 5; the second sealing ring 7-2 is arranged between the intermediate ring 2 and the cover ring 3, and a second lip is arranged at the contact portion between the second sealing ring 7-2 and the bushing 5; the distance d between the annular boss and the oil collecting ring 4 is greater than the width of the first lip and the second lip.

[0017] Furthermore, after using it for a period of time, if it is found that there is a certain depth of scratches at the contact point between the bushing 5 and the sealing ring and the oil leakage is large, the bushing 5 can be moved toward the oil collecting ring 4 by a wider width dimension of the first lip or the second lip, and it can continue to be used normally, thereby achieving the technical effect of extending the life of the sealing unit to more than twice that of the normal structure.

[0018] Furthermore, the sealing ring combination also includes a third sealing ring 8, a sealing felt ring 9 and an O-ring 10; the third sealing ring 8 is sleeved on the bushing 5, and the third sealing ring 8 and the bushing 5 are interference fit, and the third sealing ring 8 is arranged between the contact part between the cover ring 3 and the bushing 5 and the contact part between the oil collecting ring 4 and the bushing 5; the sealing felt ring 9 is sleeved on the bushing 5, and the sealing felt ring 9 is arranged in the sealing groove of the inner diameter of the oil collecting ring 4; the contact part between the inner diameter of the bushing 5 and the clamping ring 6 is designed to be a 45° chamfer, and an O-ring 10 is arranged in the 45° chamfer; because there is a small gap fit between the bushing 5 and the clamping ring 6 and the shaft, the gap amount is about 0.3mm, in order to avoid oil leakage from this gap and the contact surface between the bushing 5 and the clamping ring 6, the contact part between the inner diameter of the bushing 5 and the clamping ring 6 is designed to be a 45° chamfer, and an O-ring 10 is placed in the chamfer, so as to achieve the sealing of the shaft. This structure simplifies the processing and ensures the sealing effect.

[0019] Furthermore, the contact surface between the first sealing ring 7-1 and the flange ring 1 and the intermediate ring 2 is an arc-shaped; the contact surface between the second sealing ring 7-2 and the intermediate ring 2 and the cover ring 3 is an arc-shaped; after the sealing ring is deformed by the oil pressure, it fits on the arc surface and relies on the intermediate ring 2 and the cover ring 3 to withstand the internal pressure of the unit, thereby making up for the disadvantage of insufficient strength of the skeleton-less sealing ring.

[0020] Furthermore, the first sealing ring 7-1 and the second sealing ring 7-2 are the same.

[0021] Furthermore, it also includes a No. 1 hexagon socket screw 11, a No. 2 hexagon socket screw 12, a No. 1 hexagon head bolt 13, and a gasket 15; the flange ring 1 and the intermediate ring 2 are fixedly connected by the No. 1 hexagon socket screw 11; the intermediate ring 2 and the cover ring 3 are fixedly connected by the No. 2 hexagon socket screw 12; the cover ring 3 and the oil collecting ring 4 are fixedly connected by the No. 1 hexagon head bolt 13, and a gasket 15 is arranged between the cover ring 3 and the oil collecting ring 4; the structural design of the outer component realizes the disassembly and assembly of the sealing felt ring 9 and the third sealing ring 8 by disassembling the No. 1 hexagon head bolt 13, the disassembly and assembly of the second sealing ring 7-2 by disassembling the No. 2 hexagon socket screw 12, and the disassembly and assembly of the first sealing ring 7-1 by disassembling the No. 1 hexagon socket screw 11; a gasket 15 is added between the cover ring 3 and the oil collecting ring 4 to facilitate disassembly and enhance the sealing effect.

[0022] Furthermore, it also includes a No. 2 hexagonal head bolt 14; the No. 2 hexagonal head bolt 14 axially penetrates the flange ring 1.

[0023] Furthermore, it also includes a No. 3 hexagon socket screw 17; the bushing 5 and the clamping ring 6 are fixedly connected by the No. 3 hexagon socket screw 17, and the head of the No. 3 hexagon socket screw 17 is arranged inside the clamping ring 6.

[0024] Furthermore, the middle ring 2 is provided with radially penetrating oil holes 16 , and there are a plurality of the oil holes 16 .

[0025] Furthermore, it also includes a No. 4 hexagon socket screw 18, which is arranged on the clamping ring 6; the oil collecting ring 4 is a split structure, and the clamping ring 6 is a split structure, which is divided into two halves, and the two halves are fixedly connected by the No. 4 hexagon socket screw 18; the oil collecting ring 4 and the clamping ring 6 are designed as a split structure, which greatly facilitates the installation and disassembly of the sealing felt ring 9, the O-ring 10 and the entire sealing unit.

[0026] The above disclosure is only the preferred embodiment of the present application, which certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. The combined sealing unit structure is easy to disassemble and assemble, and is characterized by: The invention comprises a flange ring (1), an intermediate ring (2), a cover ring (3), an oil collecting ring (4), a bushing (5), a clamping ring (6) and a sealing ring assembly; the flange ring (1), the intermediate ring (2), the cover ring (3) and the oil collecting ring (4) are connected in sequence, and the flange ring (1), the intermediate ring (2), the cover ring (3) and the oil collecting ring (4) are sleeved on the bushing (5); an annular boss is arranged on one end of the bushing (5) close to the oil collecting ring (4), and the annular boss is spaced from the oil collecting ring (4) by a distance d; the end of the annular boss away from the oil collecting ring (4) is connected to the clamping ring (6); the sealing ring assembly The invention comprises a first sealing ring (7-1) and a second sealing ring (7-2), wherein the first sealing ring (7-1) and the second sealing ring (7-2) are sleeved on a bushing (5), the first sealing ring (7-1) is arranged between a flange ring (1) and an intermediate ring (2), and a first lip is arranged at a contact portion between the first sealing ring (7-1) and the bushing (5); the second sealing ring (7-2) is arranged between the intermediate ring (2) and a cover ring (3), and a second lip is arranged at a contact portion between the second sealing ring (7-2) and the bushing (5); and a distance d between the annular boss and the oil collecting ring (4) is greater than the width of the first lip and the second lip.

2. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: The sealing ring assembly further comprises a third sealing ring (8), a sealing felt ring (9) and an O-ring (10); the third sealing ring (8) is sleeved on the bushing (5), the third sealing ring (8) and the bushing (5) are interference fit, and the third sealing ring (8) is arranged between the contact portion between the cover ring (3) and the bushing (5) and the contact portion between the oil collecting ring (4) and the bushing (5); the sealing felt ring (9) is sleeved on the bushing (5), and the sealing felt ring (9) is arranged in a sealing groove of the inner diameter of the oil collecting ring (4); the contact portion between the inner diameter of the bushing (5) and the clamping ring (6) is designed to be chamfered at 45°, and the O-ring (10) is arranged in the 45° chamfer.

3. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: The contact surfaces between the first sealing ring (7-1) and the flange ring (1) and the intermediate ring (2) are arc-shaped; and the contact surfaces between the second sealing ring (7-2) and the intermediate ring (2) and the cover ring (3) are arc-shaped.

4. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: The first sealing ring (7-1) and the second sealing ring (7-2) are identical.

5. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: It also comprises a No. 1 hexagon socket screw (11), a No. 2 hexagon socket screw (12), a No. 1 hexagon head bolt (13), and a gasket (15); the flange ring (1) and the intermediate ring (2) are fixedly connected by the No. 1 hexagon socket screw (11); the intermediate ring (2) and the cover ring (3) are fixedly connected by the No. 2 hexagon socket screw (12); the cover ring (3) and the oil collecting ring (4) are fixedly connected by the No. 1 hexagon head bolt (13), and a gasket (15) is arranged between the cover ring (3) and the oil collecting ring (4).

6. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: It also includes a No. 2 hexagonal head bolt (14); the No. 2 hexagonal head bolt (14) axially penetrates the flange ring (1).

7. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: It also includes a No. 3 hexagon socket screw (17); the bushing (5) and the clamping ring (6) are fixedly connected via the No. 3 hexagon socket screw (17), and the head of the No. 3 hexagon socket screw (17) is arranged inside the clamping ring (6).

8. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: The middle ring (2) is provided with radially penetrating oil holes (16), and there are a plurality of the oil holes (16).

9. The easily disassembled combined sealing unit structure according to claim 1, characterized in that: It also includes a No. 4 hexagon socket screw (18), which is arranged on the clamping ring (6); the oil collecting ring (4) is a split structure, and the clamping ring (6) is a split structure, which is divided into two halves, and the two halves are fixedly connected by the No. 4 hexagon socket screw (18).

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