Oil head sleeve sealing device capable of reducing abrasion
By using a combination of fixed sealing ring, support spring and dynamic sealing ring in the oil receiver sleeve sealing device, combined with the rolling connection of the ball and the connector, the oil leakage and oil leakage problems caused by friction and wear are solved, and the sealing ring is realized. Higher sealing and longer service life.
Patent Information
- Application Number
- CN202420546010.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing oil receiver sealing device is frictionally worn when the turbine rotates, resulting in oil leakage and oil leakage problems. The friction of the dynamic sealing structure is large, resulting in increased wear.
An oil receiver sleeve sealing device including a fixed sealing ring, a support spring and a moving sealing ring is designed. The movable sealing ring is driven to press the rotating port through the positioning of the fixed sealing ring and the operating oil pipe, and the rotating ring is pressed by balls and connections. The piece rolls in the annular rail to reduce friction and instead rolling friction.
It effectively reduces friction losses, extends the service life of the dynamic sealing ring, ensures sealing, and avoids oil leakage and oil leakage problems.
Smart Images
Figure CN222255480U_ABST
Abstract
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 capable of reducing wear. Background Art
[0002] The oil receiver sleeve is an important part of the turbine governor. The function of the oil receiver is to connect the opening and closing operating pressure oil from the governor main pressure regulating valve to the piston cylinder in the runner through the operating oil pipe, forming an oil supply system for operating the runner blades. At the same time, the inner tube of the oil receiver operating oil pipe forms a constant pressure oil source between the high-level oil tank and the entire inner cavity of the runner, acting on the sealing of the flange of the sealing blade and the matching surface of the runner body to prevent water in the flow channel from entering the runner body and oil in the runner body from entering the flow channel.
[0003] For example, the patent specification of an existing Chinese patent (publication number: CN205779423U) discloses an oil receiver sealing device, including an oil receiver body and an operating oil pipe. A cavity-closing skeleton sealing ring is installed on the upper part of the connection between the oil receiver body and the operating oil pipe. The cavity-closing skeleton sealing ring is installed in a sealing groove on the upper part of the operating oil pipe. The sealing groove and the cavity-closing skeleton sealing ring have the same size to prevent the cavity-closing skeleton sealing ring from loosening.
[0004] However, in the implementation of relevant technologies, it was found that the oil receiver sealing device of the above design has the following problems: the sealing structure on the oil receiver sealing device is stationary, which causes the operating oil pipe to rub and wear the inner ring of the sealing ring when rotating with the turbine, and oil leakage will occur over time. A few dynamic sealing structures will also have wear and oil leakage problems due to large friction. In view of this, an oil receiver sleeve sealing device that can reduce wear is provided to overcome the above defects. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes an oil receiver sleeve sealing device which can reduce wear.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oil receiver sleeve sealing device that can reduce wear, comprising an oil receiver sleeve body, a rotating port is provided on one side of the oil receiver sleeve body, an operating oil pipe is inserted in the rotating port, a relevant cavity is provided in the oil receiver sleeve body, an oil guide port is provided in the operating oil pipe, the oil guide port is connected with the closing cavity, a fixed sealing ring is fixedly sleeved on the operating oil pipe, a supporting spring is provided on one side of the fixed sealing ring, a dynamic sealing ring is provided on the other end of the supporting spring, the dynamic sealing ring is abutted against the rotating port, an annular rail is provided on one side of the oil receiver sleeve body, a connecting piece is fixedly installed on one side of the dynamic sealing ring, a ball is rotatably inlaid on one side of the connecting piece, and the ball is rollingly connected in the annular rail.
[0007] As a further description of the above technical solution: the number of the connecting parts is two, and the two connecting parts are symmetrically fixedly installed on one side of the dynamic sealing ring. The two connecting parts and the ball bearings can improve the stability of the dynamic sealing ring during rotation.
[0008] As a further description of the above technical solution: the material of the dynamic sealing ring is fluororubber. Since fluororubber has good high temperature resistance, the dynamic sealing ring can be used normally under high friction temperature.
[0009] As a further description of the above technical solution: a sliding piece is slidably arranged in the fixed sealing ring, a positioning column is fixedly installed at the bottom of the sliding piece, a fixing opening is opened at the top of the operating oil pipe, the bottom end of the positioning column slides through the fixed sealing ring, extends to the inner ring of the fixed sealing ring and is inserted into the fixing opening, two return springs are installed on the top of the sliding piece, the other end of the return spring is connected to the fixed sealing ring, and a hand-tightening bolt is inserted into the top thread of the fixed sealing ring, and the end of the hand-tightening bolt abuts against the sliding piece. When installing the sealing structure, the fixed sealing ring is first sleeved on the operating oil pipe, and the dynamic sealing ring abuts against the rotating opening, and then the hand-tightening bolt is rotated so that the end of the hand-tightening bolt rotates and moves downward to push the sliding piece, so that the sliding piece stretches the return spring and drives the positioning column to be inserted into the fixing opening, so that the fixed sealing ring can be positioned on the operating oil pipe, which is convenient for installing the sealing structure.
[0010] As a further description of the above technical solution: the end of the hand-tightening bolt away from the end head is provided with anti-slip texture, which can increase the friction between the person's hand and the end of the hand-tightening bolt away from the end head, thereby helping to solve the problem of slipping when turning the hand-tightening bolt.
[0011] As a further description of the above technical solution: a cavity is opened in the fixed sealing ring, the sliding piece is slidably connected in the cavity, and the two ends of the return spring are fixedly connected to the inner wall of the cavity and the sliding piece respectively.
[0012] The utility model has the following beneficial effects:
[0013] The utility model designs an oil receiver sleeve sealing device capable of reducing wear. Through the cooperation of a fixed sealing ring, a supporting spring and a dynamic sealing ring, the dynamic sealing ring can be always pressed tightly against the rotating port when the operating oil pipe rotates with the turbine, thereby ensuring the sealing between the oil receiver sleeve body and the operating oil pipe. In addition, centrifugal force is generated when the operating oil pipe rotates. This centrifugal force can extend the supporting spring and drive the dynamic sealing ring to be further pressed against the rotating port. During the rotation of the dynamic sealing ring at the rotating port, the dynamic sealing ring drives the connecting piece and the ball to roll in the annular rail, and part of the sliding friction of the dynamic sealing ring can be converted into rolling friction, thereby reducing the friction force, thereby reducing the friction loss, delaying the aging rate of the dynamic sealing ring, and helping to extend the service life of the dynamic sealing ring.
[0014] The utility model discloses an oil receiver sleeve sealing device which can reduce wear. The fixed sealing ring is sleeved on the operating oil pipe, and the dynamic sealing ring is abutted against the rotating port. Then the hand screw is rotated so that the end of the hand screw moves downward while rotating to push the sliding member, so that the sliding member stretches the reset spring and drives the positioning column to be inserted into the fixed port, so that the fixed sealing ring can be positioned on the operating oil pipe, and the sealing structure can be installed conveniently. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a three-dimensional structural schematic diagram of the inner half-section view of the oil receiver sleeve body and the fixed sealing ring of the utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of a fixed sealing ring of the utility model in a half-section view of the interior;
[0018] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.
[0019] Legend:
[0020] 1. Oil receiver sleeve body; 2. Rotating port; 3. Operating oil pipe; 4. Fixed sealing ring; 5. Support spring; 6. Dynamic sealing ring; 7. Annular rail; 8. Connector; 9. Ball; 10. Closing chamber; 11. Oil guide port; 12. Sliding piece; 13. Positioning column; 14. Fixed port; 15. Reset spring; 16. Tightening bolt; 17. Cavity. DETAILED DESCRIPTION
[0021] Reference Figure 1-4 The utility model provides an oil receiver sleeve sealing device capable of reducing wear: it comprises an oil receiver sleeve body 1, a rotating port 2 is provided on one side of the oil receiver sleeve body 1, an operating oil pipe 3 is inserted in the rotating port 2, a relevant cavity 10 is provided in the oil receiver sleeve body 1, an oil guide port 11 is provided in the operating oil pipe 3, the oil guide port 11 is communicated with the closing cavity 10, a fixed sealing ring 4 is fixedly sleeved on the operating oil pipe 3, a supporting spring 5 is provided on one side of the fixed sealing ring 4, a dynamic sealing ring 6 is provided on the other end of the supporting spring 5, the dynamic sealing ring 6 is abutted against the rotating port 2, an annular rail 7 is provided on one side of the oil receiver sleeve body 1, a connecting piece 8 is fixedly installed on one side of the dynamic sealing ring 6, a ball 9 is rotatably inlaid on one side of the connecting piece 8, and the ball 9 is rollingly connected in the annular rail 7.
[0022] During specific implementation, through the cooperation of the fixed sealing ring 4, the supporting spring 5 and the dynamic sealing ring 6, the dynamic sealing ring 6 can be always pressed tightly against the rotating port 2 when the operating oil pipe 3 rotates with the turbine, thereby ensuring the sealing between the oil receiver sleeve body 1 and the operating oil pipe 3. In addition, when the operating oil pipe 3 rotates, centrifugal force will be generated, and this centrifugal force can extend the supporting spring 5 to drive the dynamic sealing ring 6 to be further pressed against the rotating port 2. In the process of the dynamic sealing ring 6 rotating at the rotating port 2, the dynamic sealing ring 6 will drive the connecting piece 8 and the ball 9 to roll in the annular rail 7, and part of the sliding friction of the dynamic sealing ring 6 can be converted into rolling friction, thereby reducing the friction force, thereby reducing the friction loss, delaying the aging rate of the dynamic sealing ring 6, and helping to extend the service life of the dynamic sealing ring 6.
[0023] As a further implementation of the above technical solution: the number of connecting members 8 is two, and the two connecting members 8 are symmetrically fixedly installed on one side of the dynamic sealing ring 6. The two connecting members 8 and the ball bearings 9 can improve the stability of the dynamic sealing ring 6 when rotating.
[0024] As a further implementation scheme of the above technical scheme: the material of the dynamic seal ring 6 is fluororubber. Since fluororubber has good high temperature resistance, the dynamic seal ring 6 can be used normally under high friction temperature.
[0025] As a further implementation scheme of the above technical scheme: a sliding piece 12 is slidably arranged in the fixed sealing ring 4, a positioning column 13 is fixedly installed at the bottom of the sliding piece 12, a fixing port 14 is opened at the top of the operating oil pipe 3, the bottom end of the positioning column 13 slides through the fixed sealing ring 4 to extend to the inner ring of the fixed sealing ring 4 and is inserted into the fixing port 14, two return springs 15 are installed on the top of the sliding piece 12, the other end of the return spring 15 is connected to the fixed sealing ring 4, a hand-tightening bolt 16 is threadedly inserted into the top of the fixed sealing ring 4, the end of the hand-tightening bolt 16 is abutted against the sliding piece 12, a cavity 17 is opened in the fixed sealing ring 4, the sliding piece 12 is slidably connected in the cavity 17, and the two ends of the return spring 15 are fixedly connected to the inner wall of the cavity 17 and the sliding piece 12 respectively.
[0026] In the specific implementation, on the basis of the above implementation, when installing the sealing structure, first, the fixed sealing ring 4 is sleeved on the operating oil pipe 3, and the dynamic sealing ring 6 is abutted against the rotating port 2, and then the hand-tightening bolt 16 is rotated to make the end of the hand-tightening bolt 16 rotate and move downward to push the slide 12, so that the slide 12 stretches the reset spring 15 and drives the positioning column 13 to insert into the fixed port 14, so that the fixed sealing ring 4 can be positioned on the operating oil pipe 3, which is convenient for installing the sealing structure.
[0027] As a further implementation of the above technical solution: the end of the hand-tightening bolt 16 away from the end is provided with anti-skid lines, which can increase the friction between the hand of the person and the end of the hand-tightening bolt 16 away from the end, thereby helping to solve the problem of slipping when the hand-tightening bolt 16 is turned.
[0028] Working principle:
[0029] When the utility model is used, through the cooperation of the fixed seal ring 4, the support spring 5 and the dynamic seal ring 6, the dynamic seal ring 6 can be always pressed against the rotating port 2 when the operating oil pipe 3 rotates with the turbine, thereby ensuring the sealing between the oil receiver sleeve body 1 and the operating oil pipe 3. In addition, when the operating oil pipe 3 rotates, centrifugal force is generated, and this centrifugal force can extend the support spring 5 to drive the dynamic seal ring 6 to be further pressed against the rotating port 2. During the rotation of the dynamic seal ring 6 at the rotating port 2, the dynamic seal ring 6 can drive the connecting piece 8 and the ball 9 to roll in the annular rail 7, so that part of the dynamic seal ring 6 can slide Friction is changed into rolling friction, thereby reducing friction force, thereby reducing friction loss, delaying the aging rate of dynamic seal ring 6, and helping to extend the service life of dynamic seal ring 6. When installing the sealing structure, first, the fixed seal ring 4 is sleeved on the operating oil pipe 3, and the dynamic seal ring 6 is abutted against the rotating port 2, and then the hand-tightening bolt 16 is rotated to make the end of the hand-tightening bolt 16 rotate and move downward to push the slide 12, so that the slide 12 stretches the reset spring 15 and drives the positioning column 13 to insert into the fixed port 14, so that the fixed seal ring 4 can be positioned on the operating oil pipe 3, which is convenient for installing the sealing structure.
[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An oil receiver sleeve sealing device capable of reducing wear, comprising an oil receiver sleeve body (1), characterized in that: A rotating port (2) is provided on one side of the oil receiver sleeve body (1), an operating oil pipe (3) is inserted into the rotating port (2), a relevant cavity (10) is provided in the oil receiver sleeve body (1), an oil guide port (11) is provided in the operating oil pipe (3), the oil guide port (11) is communicated with the closing cavity (10), a fixed sealing ring (4) is fixedly sleeved on the operating oil pipe (3), a support spring (5) is provided on one side of the fixed sealing ring (4), a dynamic sealing ring (6) is provided on the other end of the support spring (5), the dynamic sealing ring (6) is abutted against the rotating port (2), an annular rail (7) is provided on one side of the oil receiver sleeve body (1), a connecting piece (8) is fixedly installed on one side of the dynamic sealing ring (6), a ball (9) is rotatably embedded on one side of the connecting piece (8), and the ball (9) is rollingly connected in the annular rail (7).
2. The oil receiver sleeve sealing device capable of reducing wear according to claim 1, characterized in that: The number of the connecting members (8) is two, and the two connecting members (8) are symmetrically fixedly mounted on one side of the dynamic sealing ring (6).
3. The oil receiver sleeve sealing device capable of reducing wear according to claim 1, characterized in that: The material of the dynamic sealing ring (6) is fluororubber.
4. The oil receiver sleeve sealing device capable of reducing wear according to claim 1, characterized in that: A sliding member (12) is slidably arranged inside the fixed sealing ring (4), a positioning column (13) is fixedly installed at the bottom of the sliding member (12), a fixing opening (14) is opened at the top of the operating oil pipe (3), the bottom end of the positioning column (13) slides through the fixed sealing ring (4) and extends to the inner ring of the fixed sealing ring (4) and is inserted into the fixing opening (14), two return springs (15) are installed on the top of the sliding member (12), the other end of the return spring (15) is connected to the fixed sealing ring (4), and a hand-tightening bolt (16) is threadedly inserted at the top of the fixed sealing ring (4), and the end of the hand-tightening bolt (16) is abutted against the sliding member (12).
5. The oil receiver sleeve sealing device capable of reducing wear according to claim 4, characterized in that: An end of the hand-tightening bolt (16) away from the end head is provided with anti-slip texture.
6. The oil receiver sleeve sealing device capable of reducing wear according to claim 4, characterized in that: The fixed sealing ring (4) is provided with a cavity (17), the sliding member (12) is slidably connected in the cavity (17), and the two ends of the return spring (15) are respectively fixedly connected to the inner wall of the cavity (17) and the sliding member (12).