High-performance high-pressure mechanical oil seal
By installing two sealing rings on the mounting ring of the high-pressure mechanical oil seal and fixing them with locking cover and locking bolts, the problem of poor sealing performance under high pressure is solved, which significantly improves the sealing performance and reduces lubricant leakage.
Patent Information
- Application Number
- CN202420720944.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-09
AI Technical Summary
Traditional mechanical oil seals are prone to deformation of the sealing lip under high pressure, resulting in poor sealing effect, fast sealing performance, poor sealing performance, poor sealing performance, and poor sealing performance, which will leak a large amount of lubricating oil, causing damage to transmission parts and maintenance problems.
A high-performance high-pressure mechanical oil seal is designed. By installing two sealing rings on the mounting ring and fixing them to the mounting ring through locking cover and locking bolts, the sealing ring is sealed with the rotary shaft, strengthening the sealing performance, and convenient replacement when the sealing ring is damaged.
It effectively solves the problems of attenuation and poor sealing performance of oil seals, significantly improves sealing performance, reduces lubricant leakage, and extends the service life of transmission components.
Smart Images
Figure CN222615995U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil seals, in particular to a high-performance and high-pressure mechanical oil seal. Background Art
[0002] Oil seals are mechanical component shafts used to seal oil. They isolate the parts that need lubrication from the output parts in the transmission parts to prevent the lubricating oil from leaking. They are widely used in various mechanical equipment such as engines. High-pressure oil seals are mainly used to seal hydraulic motors supporting engineering machinery, agricultural machinery, construction machinery, heavy mining machinery, etc. The normal pressure requirement is 15-20Mpa, and the maximum pressure needs to reach 30Mpa. For some shafts that require axial reciprocating motion, the oil seals are squeezed and rubbed laterally.
[0003] The sealing lip of the traditional mechanical oil seal structure is easily deformed under high pressure, which aggravates the wear of the sealing lip. The sealing effect is poor and the sealing performance decays quickly. The high-pressure oil seal has poor sealing performance and will leak a large amount of lubricating oil, causing damage to transmission components and maintenance problems. Utility Model Content
[0004] The purpose of the utility model is to provide a high-performance high-pressure mechanical oil seal to solve the problems raised in the above background technology.
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-performance high-pressure mechanical oil seal, comprising:
[0006] An oil seal body, wherein a rotating shaft is arranged on the oil seal body, and the oil seal body is installed on the rotating shaft. The oil seal body comprises a mounting ring and two sealing rings, locking grooves are arranged on both side walls of the mounting ring, a mounting groove is arranged on the locking groove, two sealing rings are arranged in two mounting grooves respectively, and both sealing rings are sealingly sleeved on the rotating shaft, and locking covers are arranged on the two locking grooves, a plurality of locking holes are arranged on the locking groove, a plurality of through holes are arranged on the locking cover, the through holes are adapted to the locking holes, and locking bolts are arranged on the through holes, and the locking bolts penetrate the through holes and the locking holes of the two locking covers to fix the locking covers in the locking grooves.
[0007] Preferably, a plurality of first limiting columns are arranged on the inner wall of the installation groove, and a plurality of limiting holes are opened on the sealing ring, and the limiting holes are adapted to the first limiting columns.
[0008] Preferably, a plurality of second limiting columns are arranged on the inner wall of the locking cover, and the second limiting columns are matched with the limiting holes.
[0009] Preferably, two symmetrically arranged positioning grooves are provided on the inner wall of the locking groove, and two positioning posts are provided on the inner wall of the locking cover, and the positioning posts are adapted to the positioning grooves.
[0010] Preferably, the first limiting column and the mounting ring are integrally formed, and the second limiting column and the positioning column are integrally formed with the locking cover.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. The utility model installs two sealing rings on the mounting ring, so that after the oil seal body is installed, the two sealing rings can be sealed with the rotating shaft, thereby enhancing the sealing performance and solving the problem that the sealing performance of the oil seal decays quickly, the high-pressure oil seal has poor sealing performance, and a large amount of lubricating oil will leak, causing damage to the transmission parts and maintenance problems;
[0013] 2. The two sealing rings provided in the utility model are locked on the mounting ring by a locking cover, and the locking cover is fixedly mounted on the mounting ring by a plurality of locking bolts, so that the sealing ring can be easily replaced after being damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a high-performance high-pressure mechanical oil seal proposed by the utility model;
[0015] Figure 2 This is a three-dimensional structural diagram of a mounting ring in a high-performance high-pressure mechanical oil seal proposed by the utility model;
[0016] Figure 3 This is a three-dimensional structural diagram of a sealing ring in a high-performance high-pressure mechanical oil seal proposed by the utility model;
[0017] Figure 4 The utility model is a three-dimensional structural diagram of a locking cover in a high-performance high-pressure mechanical oil seal.
[0018] In the figure: 1. oil seal body; 2. rotating shaft; 3. mounting ring; 4. locking groove; 5. mounting groove; 6. sealing ring; 7. locking cover; 8. locking hole; 9. through hole; 10. locking bolt; 11. first limiting column; 12. limiting hole; 13. second limiting column; 14. positioning groove; 15. positioning column. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-4 The utility model provides a technical solution: a high-performance high-pressure mechanical oil seal, comprising:
[0021] An oil seal body 1 is provided with a rotating shaft 2, and the oil seal body 1 is installed on the rotating shaft 2. The oil seal body 1 includes a mounting ring 3 and two sealing rings 6. Locking grooves 4 are provided on both side walls of the mounting ring 3, and a mounting groove 5 is provided on the locking groove 4. The two sealing rings 6 are respectively arranged in the two mounting grooves 5, and the two sealing rings 6 are sealingly sleeved on the rotating shaft 2. A locking cover 7 is provided on the two locking grooves 4, and a plurality of locking holes 8 are provided on the locking groove 4. A plurality of through holes 9 are provided on the locking cover 7, and the through holes 9 are adapted to the locking holes 8. A locking bolt 10 is provided on the through hole 9, and the locking bolt 10 passes through the through holes 9 and the locking holes 8 of the two locking covers 7 to fix the locking cover 7 in the locking groove 4.
[0022] A plurality of first limiting columns 11 are arranged on the inner wall of the installation groove 5, and a plurality of limiting holes 12 are opened on the sealing ring 6. The limiting holes 12 are adapted to the first limiting columns 11. When the sealing ring 6 is installed in the installation groove 5, the first limiting columns 11 can be inserted into the limiting holes 12 to limit the sealing ring 6 to prevent the sealing ring 6 from deflecting.
[0023] A plurality of second limiting columns 13 are arranged on the inner wall of the locking cover 7 , and the second limiting columns 13 are matched with the limiting holes 12 . After the locking cover 7 is closed, the second limiting columns 13 can be inserted into the limiting holes 12 to further strengthen the limiting of the sealing ring 6 .
[0024] The locking groove 4 has two symmetrically arranged positioning grooves 14 on its inner wall, and the locking cover 7 has two positioning posts 15 on its inner wall. The positioning posts 15 are matched with the positioning grooves 14. By plugging and fitting the positioning posts 15 with the positioning grooves 14, the locking cover 7 can accurately align the multiple through holes 9 with the multiple locking holes 8 when the locking cover 7 is closed.
[0025] The first limiting column 11 is integrally formed with the mounting ring 3 , and the second limiting column 13 and the positioning column 15 are integrally formed with the locking cover 7 .
[0026] Working principle: The utility model installs two sealing rings 6 on the mounting ring 3, so that after the oil seal body 1 is installed, the two sealing rings 6 can be sealed with the rotating shaft 2, thereby enhancing the sealing effect and solving the problem that the sealing performance of the oil seal decays quickly, the high-pressure oil seal has poor sealing performance, and a large amount of lubricating oil will leak, causing damage to the transmission parts and maintenance problems. The two sealing rings 6 are locked on the mounting ring 3 by a locking cover 7, and the locking cover 7 is fixedly installed on the mounting ring 3 by a plurality of locking bolts 10, so that the sealing ring 6 can be easily replaced after it is damaged.
[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-performance high-pressure mechanical oil seal, characterized in that: include: An oil seal body (1), wherein a rotating shaft (2) is arranged on the oil seal body (1), and the oil seal body (1) is mounted on the rotating shaft (2). The oil seal body (1) comprises a mounting ring (3) and two sealing rings (6), and locking grooves (4) are provided on both side walls of the mounting ring (3), and mounting grooves (5) are provided on the locking grooves (4). The two sealing rings (6) are respectively arranged in the two mounting grooves (5), and the two sealing rings (6) are both sealing sleeves arranged on the rotating shaft. (2), a locking cover (7) is provided on each of the two locking grooves (4), a plurality of locking holes (8) are provided on the locking groove (4), a plurality of through holes (9) are provided on the locking cover (7), the through holes (9) are matched with the locking holes (8), a locking bolt (10) is provided on the through hole (9), and the locking bolt (10) passes through the through holes (9) and the locking holes (8) of the two locking covers (7) to fix the locking cover (7) in the locking groove (4).
2. A high performance high pressure mechanical oil seal according to claim 1, characterized in that: A plurality of first limiting columns (11) are arranged on the inner wall of the installation groove (5), and a plurality of limiting holes (12) are opened on the sealing ring (6), wherein the limiting holes (12) are matched with the first limiting columns (11).
3. A high performance high pressure mechanical oil seal according to claim 2, characterized in that: A plurality of second limiting columns (13) are arranged on the inner wall of the locking cover (7), and the second limiting columns (13) are adapted to the limiting holes (12).
4. A high performance and high pressure mechanical oil seal according to claim 1, characterized in that: Two symmetrically arranged positioning grooves (14) are provided on the inner wall of the locking groove (4), and two positioning posts (15) are provided on the inner wall of the locking cover (7), and the positioning posts (15) are adapted to the positioning grooves (14).
5. A high performance and high pressure mechanical oil seal according to claim 3, characterized in that: The first limiting column (11) and the mounting ring (3) are integrally formed, and the second limiting column (13) and the locking cover (7) are integrally formed.
6. A high performance high pressure mechanical oil seal according to claim 4, characterized in that: The positioning column (15) and the locking cover (7) are integrally formed.