Novel oil-free bushing fixing piece
Through the combined design of fixing component 1 and fixing component 2, the axial sliding problem caused by the sealing ring gap during movement is solved, and a more stable connection and a longer service life is achieved.
Patent Information
- Application Number
- CN202421914850.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-08
AI Technical Summary
During the movement of existing oil-free bushings, the axial sliding caused by the gap between the seal ring and the seal ring groove, causing wear to intensify and affect service life.
The combination design of fixing component 1 and fixing component 2 is adopted, and the limiting effect of the sealing ring is replaced by threaded installation and bolting connection. The fixing component 1 is closely connected to the oil-free bushing body to prevent axial sliding.
Effectively reduce the axial sliding of oil-free bushing, improve service life, prevent wear, enhance sealing effect, and extend service time.
Smart Images
Figure CN223164887U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil-free bushings, in particular to a new type of oil-free bushing fixing part. Background Art
[0002] A bushing is a matching part used outside mechanical components to achieve functions such as sealing and wear protection. It refers to a ring sleeve that acts as a gasket. The bushing has high flexibility in use and can play many roles. Generally speaking, the bushing is a type of component that protects equipment. The use of the bushing can reduce equipment wear, vibration and noise, and has an anti-corrosion effect. The use of the bushing can also facilitate the maintenance of mechanical equipment, simplify the structure and manufacturing process of the equipment. The role played by the bushing in actual work is greatly related to its application environment and purpose. In the valve application field, the bushing is installed in the valve cover to sleeve the valve stem, thereby reducing the leakage of the valve and achieving a sealing effect. In the bearing application field, the use of the bushing can reduce the wear between the bearing and the bearing seat and avoid the increase of the gap between the shaft and the hole.
[0003] Currently, an oil-free bushing is a high-strength brass bearing lubricated by an oil groove. This product has the functions of traditional tin bronze bearings. Since high-strength brass is used, its HB hardness has doubled. Therefore, when using this product in low-speed occasions, the service life can be extended by one time compared with ordinary bronze sleeves, and it has a large bearing pressure and can adapt to heavy-load occasions.
[0004] However, currently, to prevent the oil-free bushing from sliding back and forth during movement, it is fixed by a sealing ring. Due to the gap between the sealing ring and the sealing ring groove, it is easy to cause axial sliding of the oil-free bushing, resulting in increased wear of the oil-free bushing and affecting its service life. Content of the Utility Model
[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a new type of oil-free bushing fixing part to solve the technical problem that the existing new type of oil-free bushing fixing part is fixed by a sealing ring. Due to the gap between the sealing ring and the sealing ring groove, it is easy to cause axial sliding of the oil-free bushing, resulting in increased wear of the oil-free bushing and affecting its service life.
[0006] To solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A new type of oil-free bushing fixing part, comprising:
[0008] An oil-free bushing body; a fillet is provided at the edge of the inner wall of the oil-free bushing body;
[0009] A first fixing component; the first fixing component is movably sleeved outside the oil-free bushing body;
[0010] Fixing component two; the fixing component two is arranged outside the fixing component one, and the fixing component two includes a fixing ring one, a fixing ring two, a collar, a sealing gasket, a plugging ring and fixing bolts. The collar is fixedly installed at the top of the fixing ring two. An annular groove is formed at the top of the collar. The sealing gasket is arranged inside the annular groove. The plugging ring is fixedly installed at the bottom of the fixing ring one. The plugging ring is inserted and fitted into the inside of the annular groove. The bottom of the fixing ring is movably inserted with a fixing bolt, and the fixing bolt penetrates through and extends into the inside of the sealing gasket and then into the inside of the plugging ring.
[0011] Further, the fixing component one includes an end cover, an external thread ring arranged at the bottom of the end cover, a base, an internal thread ring arranged at the top of the base and mounting ears.
[0012] Further, the oil-free bushing body is movably inserted into the inside of the base, and a limiting retaining ring one is arranged at the bottom of the base. The end cover is movably sleeved on the top of the oil-free bushing body, and a limiting retaining ring two is arranged at the top end of the end cover. Both the limiting retaining ring one and the limiting retaining ring two are in contact with the oil-free bushing body.
[0013] Further, the external thread ring is threadedly sleeved outside the internal thread ring, and mounting ears are fixedly installed on the outer wall of the base.
[0014] Further, the fixing ring one is fixedly sleeved outside the external thread ring, and the fixing ring two is fixedly sleeved outside the base.
[0015] Further, an oil inlet hole is formed inside the side wall of the end cover.
[0016] Advantages of the utility model:
[0017] By setting the fixing component one and the fixing component two to be used in cooperation, the fixing component one with threaded installation and sealing replaces the limiting function of the sealing ring, greatly reducing the axial sliding of the internal oil-free bushing, making the installation more convenient, and at the same time improving the service life of the internal oil-free bushing. At the same time, by using the fixing component two and adopting the way of bolt insertion and fixation, the fixing component one with threaded installation is relatively fixed, preventing the fixing component one from loosening, and can also play a sealing role in the connection of the fixing component one, enabling the fixing component one to better fix and seal the oil-free bushing body, effectively preventing the oil-free bushing from generating axial sliding, avoiding the aggravation of wear of the oil-free bushing body, and greatly prolonging its service life. Description of the drawings
[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.
[0019] Figure 1 Explosion diagram of Fixing Component 1 of the embodiment of the novel oil-free bushing fixing part;
[0020] Figure 2 Bottom view structural schematic diagram of the embodiment of the novel oil-free bushing fixing part;
[0021] Figure 3 Of the embodiment of the novel oil-free bushing fixing part Figure 2 Schematic cross-sectional view of the A-A plane in;
[0022] Figure 4 Assembly schematic diagram of Fixing Component 1 of the embodiment of the novel oil-free bushing fixing part;
[0023] Figure 5 Partial cross-sectional three-dimensional schematic diagram of Fixing Component 2 of the embodiment of the novel oil-free bushing fixing part;
[0024] Figure 6 Three-dimensional schematic diagram of Fixing Component 2 of the embodiment of the novel oil-free bushing fixing part.
[0025] Explanation of the markings in the figure: 1. Oil-free bushing body; 2. Fixing Component 1; 21. End cover; 22. Base; 23. Inner thread ring; 24. Oil inlet hole; 25. Outer thread ring; 26. Mounting ear; 3. Fixing Component 2; 31. Fixing ring 1; 32. Fixing ring 2; 33. Sleeve ring; 34. Sealing gasket; 35. Insertion ring; 36. Fixing bolt. Specific embodiments
[0026] The following will combine the accompanying Figure 1-6 in the embodiments of the present utility model, and clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are some embodiments of the present utility model, rather than all embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0027] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.
[0028] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.
[0029] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.
[0030] See also Figure 1-6 As shown, a new type of oil-free bushing fixing part includes: an oil-free bushing body 1, a fixing component 1 2 and a fixing component 2 3. The inner wall edge of the oil-free bushing body 1 is provided with a fillet. The fixing component 1 2 is movably sleeved on the outside of the oil-free bushing body 1. The fixing component 2 3 is arranged on the outside of the fixing component 1 2. The fixing component 2 3 includes a fixing ring 1 31, a fixing ring 2 32, a collar 33, a sealing gasket 34, a plug-in ring 35 and a fixing bolt 36. The collar 33 is fixedly installed on the top of the fixing ring 2 32. The top of the collar 33 is provided with an annular groove. The sealing gasket 34 is arranged inside the annular groove. The plug-in ring 35 is fixedly installed on the bottom of the fixing ring 1 31. The plug-in ring 35 is fitted into the inside of the annular groove. The bottom of the fixing ring is movably plugged with a fixing bolt 36, and the fixing bolt 36 passes through and is plugged into the inside of the sealing gasket 34 and extends to the inside of the plug-in ring 35.
[0031] Specifically, by providing a fixing component 1 2 and a fixing component 2 3 for use in conjunction, a threaded mounting seal fixing component 1 2 is adopted to replace the limiting function of the sealing ring, which greatly reduces the axial sliding of the internal oil-free bushing, makes installation more convenient, and improves the service life of the internal oil-free bushing. At the same time, a fixing component 2 3 is adopted, and a bolt plug-in fixing method is adopted, so that the threaded mounting fixing component 1 2 is relatively fixed, preventing the fixing component 1 2 from loosening, and also plays a sealing role in the connection of the fixing component 2, so that the fixing component 1 2 can better fix and seal the oil-free bushing body 1, effectively prevent the oil-free bushing from axial sliding, avoid aggravated wear of the oil-free bushing body 1, and greatly extend its service life. When in use, after the fixing component 1 2 is installed to the appropriate position, its plug-in ring 35 is movably plugged into the inside of the annular groove, so that the plug-in ring 35 contacts the sealing gasket 34, and the fixing bolt 36 is turned to effectively fix the plug-in ring 35 and the ring 33.
[0032] In this embodiment, the first fixing component 2 includes an end cap 21, an external thread ring 25 provided at the bottom of the end cap 21, a base 22, an internal thread ring 23 provided at the top of the base 22, and mounting ears 26. The oil-free bushing body 1 is movably inserted into the interior of the base 22, and a first limiting retaining ring is provided at the bottom of the base 22. The end cap 21 is movably sleeved on the top of the oil-free bushing body 1, and a second limiting retaining ring is provided at the top end of the end cap 21. Both the first limiting retaining ring and the second limiting retaining ring are in contact with the oil-free bushing body 1.
[0033] Specifically, during use, the oil-free bushing body 1 is installed into the interior of the base 22, and the end cap 21 is sleeved on the top of the base 22. At the same time, the end cap 21 is rotated so that the base 22 and the end cap 21 are threadedly installed, thereby sealing and fixing the oil-free bushing, preventing the occurrence of a gap between the sealing ring and the sealing ring groove, which is likely to cause axial sliding of the oil-free bushing, making the installation of the oil-free bushing body 1 more stable, with a better installation effect, a longer service life, and being more durable.
[0034] The external thread ring 25 is threadedly sleeved outside the internal thread ring 23. Mounting ears 26 are fixedly installed on the outer wall of the base 22. A first fixing ring 31 is fixedly sleeved outside the external thread ring 25. A second fixing ring 32 is fixedly sleeved outside the base 22. An oil inlet hole 24 is formed inside the side wall of the end cap 21.
[0035] Specifically, during use, through the through hole inside the mounting ear 26, the mounting ear 26 can be preferentially fixed at a suitable position on the mechanical equipment, thereby facilitating the screwing of the end cap 21 and the installation of the fixing bolt 36. At the same time, by using the oil inlet hole 24, lubricating oil can be added to the threaded connection between the end cap 21 and the base 22 through the oil inlet hole 24, which can perform oil seal and lubrication, making the threaded connection more stable and improving its sealing performance.
[0036] In summary, compared with the prior art, the oil-free bushing fixing part has at least the following beneficial effects: by setting the first fixing component 2 and the second fixing component 3 to be used in cooperation, the first fixing component 2 with threaded installation and sealing replaces the limiting function of the sealing ring, greatly reducing the axial sliding of the internal oil-free bushing, making the installation more convenient, and at the same time improving the service life of the internal oil-free bushing. At the same time, the second fixing component 3 is adopted, and the bolt insertion and fixing method is used to make the first fixing component 2 installed by threading relatively fixed, preventing the first fixing component 2 from loosening, and also playing a sealing role in the connection of the first fixing component 2, so that the first fixing component 2 can better fix and seal the oil-free bushing body 1, effectively preventing the oil-free bushing from generating axial sliding, avoiding the aggravation of wear of the oil-free bushing body 1, and greatly prolonging its service life. When in use, after the first fixing component 2 is installed at a suitable position, its insertion ring 35 is movably inserted into the inside of the annular groove, so that the insertion ring 35 contacts the sealing gasket 34, and the fixing bolt 36 is screwed to effectively fix between the insertion ring 35 and the sleeve ring 33.
[0037] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. A new type of oil-free bushing fixing part, characterized in that, Including: An oil-free bushing body (1); a rounded corner is provided at the inner wall edge of the oil-free bushing body (1); A first fixing component (2); the first fixing component (2) is movably sleeved outside the oil-free bushing body (1); A second fixing component (3); the second fixing component (3) is arranged outside the first fixing component (2), and the second fixing component (3) includes a first fixing ring (31), a second fixing ring (32), a collar (33), a sealing gasket (34), a plugging ring (35) and a fixing bolt (36). The collar (33) is fixedly installed at the top of the second fixing ring (32). An annular groove is formed at the top of the collar (33). The sealing gasket (34) is arranged inside the annular groove. The plugging ring (35) is fixedly installed at the bottom of the first fixing ring (31). The plugging ring (35) is plugged and fitted into the inside of the annular groove. The bottom of the fixing ring is movably plugged with a fixing bolt (36), and the fixing bolt (36) penetrates through and extends into the inside of the sealing gasket (34) and further into the inside of the plugging ring (35).
2. A novel oil-free bushing fixing according to claim 1, characterized in that: The first fixing component (2) includes an end cover (21), an external thread ring (25) arranged at the bottom of the end cover (21), a base (22), an internal thread ring (23) arranged at the top of the base (22) and a mounting ear (26).
3. A novel oil-free bushing fixing part according to claim 2, characterized in that, The oil-free bushing body (1) is movably plugged into the inside of the base (22), and a first limiting retaining ring is arranged at the bottom of the base (22). The end cover (21) is movably sleeved at the top of the oil-free bushing body (1), and a second limiting retaining ring is arranged at the top end of the end cover (21). Both the first limiting retaining ring and the second limiting retaining ring are in contact with the oil-free bushing body (1).
4. A novel oil-free bushing fixing according to claim 3, characterized in that: The external thread ring (25) is threadedly sleeved outside the internal thread ring (23), and the outer wall of the base (22) is fixedly installed with a mounting ear (26).
5. A novel oil-free bushing fixing according to claim 4, characterized in that: The first fixing ring (31) is fixedly sleeved outside the external thread ring (25), and the second fixing ring (32) is fixedly sleeved outside the base (22).
6. A novel oil-free bushing fixing according to claim 2, characterized in that: An oil inlet hole (24) is formed inside the side wall of the end cover (21).