A bushing with an oil groove

Abstract

The utility model discloses a bearing bush with oil groove, including bearing bush body, the inside of bearing bush body is provided with oil storage groove, bearing bush body one end fixed mounting has the oil pipe, the inside rotation of oil pipe is connected with sealing plate no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts technology, specifically a bushing with an oil groove. Background Technology

[0002] In moving parts, the shaft is installed in the shaft hole. Because long-term use will cause wear between the shaft and the shaft hole, in order to improve the service life of the shaft, a bushing is fitted on the outer surface of the shaft. The bushing is a common protective part and an important component in mechanical design.

[0003] According to the announcement CN109083929A, the bushing with an oil groove includes a bushing body connected to a base. Both the bushing body and the base are cylindrical. An annular oil groove is provided on the inner wall of the bushing body, and an oil injection hole is provided on the outer wall of the bushing body. The oil groove communicates with the oil injection hole, which is covered by a cap. A groove is provided on the inner side of the base, and a sponge is placed within the groove. This invention has a simple structure, is easy to use, provides good lubrication, extends the service life of the bushing, and reduces maintenance.

[0004] The above-mentioned device can extend the service life of the bushing and reduce maintenance. According to the instruction manual and the attached drawings, a cover is provided at one end of the oil hole, but the sealing method of the cover is not specified. If it is just a simple snap-fit ​​type, the cover is easy to loosen and fall off under the vibration generated by the high-speed operation of the bushing or external impact. This will cause dust, water vapor and other impurities to enter the oil groove and contaminate the lubricating oil. Utility Model Content

[0005] The purpose of this invention is to address the problem that while one end of the oil hole is fitted with a cap, the sealing method of the cap is not specified. If it is simply a snap-fit ​​type, the cap is prone to loosening and falling off under vibrations generated by the high-speed operation of the bushing or external impacts. This leads to the entry of dust, moisture, and other impurities into the oil groove, contaminating the lubricating oil. Therefore, this invention provides a bushing with an oil groove.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bushing with an oil groove, comprising a bushing body, an oil storage groove inside the bushing body, an oil injection pipe fixedly installed at one end of the bushing body, a sealing plate 1 and a sealing plate 2 rotatably connected inside the oil injection pipe, a sleeve rod fixedly installed at one end of the sealing plate 1, a sleeve fixedly installed at one end of the sealing plate 2, and the sleeve rotatably connected to the sleeve rod, an installation seat fixedly installed at one end of the oil injection pipe, a U-shaped seat slidably connected to the top of the installation seat, a mating groove 1 and a mating groove 2 opened at one end of the U-shaped seat, a mating rod 1 fixedly installed at one end of the sleeve, and the mating rod 1 is adapted to the mating groove 1, and a mating rod 2 fixedly installed at one end of the sleeve rod, and the mating rod 2 is adapted to the mating groove 2.

[0007] As a further embodiment of this utility model: a guide slide rod is fixedly installed at the top of the mounting base, and the guide slide rod is symmetrically fixedly installed at the top of the mounting base. Guide slide grooves are symmetrically opened at both ends of the U-shaped base, and the guide slide grooves are adapted to the guide slide rods.

[0008] As a further improvement of this utility model: one end of the U-shaped seat is symmetrically provided with a slot, and a limiting rod is slidably connected inside the slot. A limiting slot is symmetrically provided on one side of the guide slide rod, and the limiting slot is adapted to the limiting rod.

[0009] As a further embodiment of this utility model: a damping spring is fixedly installed inside the hollow groove, and the other end of the damping spring is fixedly installed with the limiting rod. The U-shaped seat is slidably connected with a sliding rod, and one end of the sliding rod is fixedly installed with the limiting rod.

[0010] As a further improvement of this utility model: a base is fixedly installed at the bottom end of the bushing body, and an installation groove is provided inside the base.

[0011] As a further improvement of this utility model, a sponge is provided inside the mounting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The sealing plate 1 and sealing plate 2 inside the oil injection pipe of this utility model form a sealing structure. When closed, they jointly block the channel of the oil injection pipe, which can effectively prevent dust, water vapor and other impurities from entering the oil storage tank, avoid lubricating oil contamination, and ensure the lubrication effect of the bushing body.

[0014] When filling the bushing with oil, this utility model only requires pulling the sliding rod to unlock the U-shaped seat. Pushing the U-shaped seat will drive the sealing plate 1 and sealing plate 2 to rotate and unfold synchronously in opposite directions through the linkage of mating groove 1, mating groove 2, mating rod 1, and mating rod 2. After filling with oil, pushing the U-shaped seat in the opposite direction will complete the sealing. No tools are required throughout the process, making it highly efficient and labor-saving. The U-shaped seat is locked by the limiting rod and the limiting slot, and with the smooth guidance of the guide slide rod, it ensures that the sealing plate 1 and sealing plate 2 do not loosen or shift on the bushing body, thus extending the service life of the bushing body. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the bushing body of this utility model;

[0017] Figure 3 This is a schematic diagram of the oil injection pipe in this utility model;

[0018] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the partial structure at point A in the middle;

[0019] Figure 5 This is a schematic diagram of the opening structure of sealing plate one and sealing plate two in this utility model;

[0020] Figure 6 This is a schematic diagram of the unfolded structure of sealing plate one and sealing plate two in this utility model;

[0021] Figure 7 This is a cross-sectional structural diagram of the U-shaped seat in this utility model;

[0022] Figure 8 This is a utility model Figure 7 A magnified schematic diagram of the structure at point B in the middle.

[0023] In the diagram: 1. Bushing body; 2. Oil reservoir; 3. Oil injection pipe; 4. Sealing plate one; 5. Sealing plate two; 6. Sleeve rod; 7. Sleeve tube; 8. Mounting seat; 9. U-shaped seat; 10. Mating groove one; 11. Mating rod one; 12. Mating groove two; 13. Mating rod two; 14. Guide slide rod; 15. Guide slide groove; 16. Empty groove; 17. Limiting insert rod; 18. Limiting slot; 19. Damping spring; 20. Sliding rod; 21. Base; 22. Mounting groove; 23. Sponge. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0026] Reference Figures 1 to 8 In this embodiment of the utility model, a bushing with an oil groove includes a bushing body 1, an oil storage groove 2 inside the bushing body 1, an oil injection pipe 3 fixedly installed at one end of the bushing body 1, a sealing plate 4 and a sealing plate 5 rotatably connected inside the oil injection pipe 3, a sleeve rod 6 fixedly installed at one end of the sealing plate 4, a sleeve 7 fixedly installed at one end of the sealing plate 5, and the sleeve 7 rotatably connected to the sleeve rod 6, an installation seat 8 fixedly installed at one end of the oil injection pipe 3, a U-shaped seat 9 slidably connected to the top of the installation seat 8, a mating groove 10 and a mating groove 12 opened at one end of the U-shaped seat 9, a mating rod 11 fixedly installed at one end of the sleeve 7, and the mating rod 11 is adapted to the mating groove 10, and a mating rod 2 13 fixedly installed at one end of the sleeve rod 6, and the mating rod 2 13 is adapted to the mating groove 2 12.

[0027] The above-mentioned scheme employs the following: the bushing body 1, the oil reservoir 2, and the oil injection pipe 3 are all prior art referenced in the prior art documents and are not described in detail in this application. The sealing plates 4 and 5, rotatably connected internally by deep groove ball bearings, are made of polytetrafluoroethylene (PTFE), which is oil-resistant, temperature-resistant, and has excellent sealing performance. Their surfaces are polished. The sleeve rod 6, welded to one end of the sealing plate 4, is made of 20CrMnTi alloy steel. The sleeve 7, welded to one end of the sealing plate 5, is made of stainless steel with a wear-resistant bushing on its inner wall, rotatably connected to the sleeve rod 6 to ensure smooth, unobstructed relative rotation. The mounting base 8, welded to one end of the oil injection pipe 3, is made of steel. The U-shaped seat 9, slidably connected to the top via a slide rail, is made of aluminum alloy, which is lightweight and wear-resistant. A mating groove is provided at one end of the U-shaped seat 9. The inner walls of the first and second fitting grooves 10 and 12 are smooth and the groove shape is regular. The fitting rod 11, which is welded to one end of the sleeve 7, and the fitting rod 23, which is welded to one end of the sleeve rod 6, are both made of stainless steel with rounded ends. They are precisely matched with the first fitting groove 10 and the second fitting groove 2 12 respectively. The advantage of this structure is that when the U-shaped seat 9 slides along the mounting seat 8, the first fitting groove 10 drives the sleeve 7 to rotate through the fitting rod 11, and the second fitting groove 2 drives the sleeve rod 6 to rotate through the fitting rod 2 13. This synchronously controls the opening and closing of the sealing plate 14 and the second sealing plate 25, realizing the rapid opening and closing of the oil injection pipe 3. The double sealing structure improves the sealing reliability and avoids oil leakage. The nested rotation design of the sleeve rod 6 and the sleeve 7 ensures that the movement of the two sealing plates does not interfere with each other, while saving installation space.

[0028] Reference Figures 1 to 8 A guide slide rod 14 is fixedly installed at the top of the mounting base 8, and the guide slide rod 14 is symmetrically fixedly installed at the top of the mounting base 8. The U-shaped base 9 has guide grooves 15 symmetrically opened at both ends, and the guide grooves 15 are adapted to the guide slide rod 14.

[0029] The above-mentioned scheme is adopted: the guide slide rods 14, which are symmetrically welded and fixed at the top of the mounting base 8, are made of stainless steel with chrome-plated and polished surfaces. The guide slide grooves 15, which are symmetrically opened at both ends of the U-shaped base 9, have finely ground inner walls that precisely match the guide slide rods 14. The advantage of this structure is that the cooperation between the guide slide rods 14 and the guide slide grooves 15 provides precise guidance for the sliding of the U-shaped base 9, ensuring that the U-shaped base 9 moves along a fixed trajectory and avoiding misalignment of the mating groove 10 and mating rod 11, and the mating groove 2 and mating rod 2 13 during sliding. This ensures the synchronicity and precision of the opening and closing control of the sealing plate 1 4 and the sealing plate 2 5. The symmetrically distributed guide slide rods 14 make the force on the U-shaped base 9 balanced, and the sliding process is smooth and without jamming, reducing frictional wear between mating parts and extending service life.

[0030] Reference Figures 1 to 8The U-shaped base 9 has symmetrical slots 16 at one end, and a limiting rod 17 is slidably connected inside the slot 16. A limiting slot 18 is symmetrically opened on one side of the guide slide rod 14, and the limiting slot 18 is adapted to the limiting rod 17. A damping spring 19 is fixedly installed inside the slot 16, and the other end of the damping spring 19 is fixedly installed to the limiting rod 17. A sliding rod 20 is slidably connected to the U-shaped base 9, and one end of the sliding rod 20 is fixedly installed to the limiting rod 17.

[0031] The above scheme is adopted as follows: The inner wall of the symmetrically opened slot 16 at one end of the U-shaped seat 9 is finely ground, and the internal sliding connection limit rod 17 is made of stainless steel with chrome plating for rust prevention. One end is chamfered for easy insertion. The inner wall of the symmetrically opened limit slot 18 on one side of the guide slide rod 14 is regular and precisely matches the limit rod 17. The damping spring 19 welded and fixed inside the slot 16 is a stainless steel compression spring, model YI-C3-8, which has buffer damping characteristics and stable elasticity. The other end is welded and fixed to the limit rod 17. The sliding rod 20 slidably connected to the top of the U-shaped seat 9 is made of the same material as the limit rod 17. The top is equipped with an anti-slip pressing head, and one end is welded and fixed to the limit rod 17. The sliding is smooth and without jamming. The limit slots 18 are symmetrically arranged at the opening and closing of the U-shaped seat 9 to ensure accurate limit locking when the U-shaped seat 9 is opened and closed. The advantage of this structure is that when the U-shaped seat 9 slides to the fully open or closed state of the sealing plate 1 4 and the sealing plate 2 5, the damping spring 19 pushes the limiting rod 17 into the limiting slot 18 of the guide slide rod 14, mechanically locking the U-shaped seat 9 to prevent it from sliding due to vibration, accidental contact or oil impact, ensuring the stability of the sealing plate and avoiding accidental opening or leakage of the oil injection pipe 3. The damping characteristics of the damping spring 19 make the limiting rod 17 move smoothly when it is inserted or removed, reducing impact noise, and avoiding locking failure caused by excessively fast rebound of ordinary springs. When it is necessary to adjust the state of the sealing plate, press the sliding rod 20 to drive the limiting rod 17 to compress the damping spring 19 and disengage it from the limiting slot 18, which can then push the U-shaped seat 9 for adjustment. The operation is convenient, and after the adjustment is completed, releasing the sliding rod 20 will automatically reset and lock the seat.

[0032] Reference Figures 1 to 8 A base 21 is fixedly installed at the bottom of the bushing body 1. An installation groove 22 is provided inside the base 21, and a sponge 23 is provided inside the installation groove 22.

[0033] The above-mentioned solution includes: base 21, mounting groove 22 and sponge 23, which are all prior art referenced in the prior art documents and are not described in detail in this application.

[0034] The working principle of this utility model is as follows: The oil reservoir 2 inside the bushing body 1 is used to store lubricating oil, and the oil injection pipe 3 is the channel for replenishing oil to the oil reservoir. The sealing plate 4 and the sealing plate 5 inside form a double seal to avoid the risk of failure of the single seal structure. Under normal conditions, the sealing plate 4 and the sealing plate 5 are both in a closed state, jointly blocking the oil injection pipe 3 channel. When it is necessary to inject oil into the oil reservoir 2, the sliding rods 20 at both ends of the U-shaped seat 9 are pulled inward first. The sliding rods 20 drive the limiting rod 17 in the empty groove 16 to compress the damping spring 19. This causes the limiting rod 17 to disengage from the limiting slot 18 of the guide slide rod 14, releasing the position lock of the U-shaped seat 9. The U-shaped seat 9 then slides smoothly along the guide slide rod 14 at the top of the mounting base 8 via the guide slide grooves 15 at both ends. The mating groove 10 and mating groove 2 at one end respectively drive the mating rod 11 and mating rod 2 13 to move synchronously. The mating rod 11 is fixedly connected to the sleeve 7, and the mating rod 2 13 is fixedly connected to the sleeve rod 6. The sleeve 7 and the sleeve rod 6 rotate in engagement. Therefore, the sliding of the U-shaped seat 9 will drive the sealing plate 1 4 and the sealing plate 2 13 to move synchronously. 5. Rotate in the opposite direction. When the U-shaped seat 9 slides to the end of the guide slide rod 14, the sealing plate 1 4 and the sealing plate 2 5 are fully unfolded, and the oil injection pipe 3 channel is opened. At this time, release the slide rod 20, and the damping spring 19 pushes the limit insert rod 17 to reset and insert into the corresponding limit slot 18, locking the position of the U-shaped seat 9 to ensure that the sealing plate will not close by itself during the oil injection process. After the oil injection is completed, push the U-shaped seat 9 in the opposite direction. Through the transmission of the mating groove 1 10, the mating groove 2 12, the mating rod 1 11, and the mating rod 2 13, the sealing plate 1 4 and the sealing plate 2 5 are fully unfolded. The second sealing plate 5 rotates in the opposite direction to close until the U-shaped seat 9 is reset. The limiting rod 17 is then inserted into the limiting slot 18 to lock. The closed state of the first sealing plate 4 and the second sealing plate 5 can effectively prevent dust, moisture and other impurities from entering the oil reservoir 2. At the same time, the limiting rod 17, the limiting slot 18 and the guide slide rod 14 of the U-shaped seat 9 provide stable guidance, ensuring that the first sealing plate 4 and the second sealing plate 5 will not loosen or shift when the bushing body 1 is vibrating at high speed or when there is an external collision, thus avoiding the problem of falling off, ensuring the cleanliness of the lubricating oil and extending the service life of the bushing.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A bushing with an oil groove, comprising a bushing body (1), wherein an oil reservoir (2) is provided inside the bushing body (1), and an oil injection pipe (3) is fixedly installed at one end of the bushing body (1), characterized in that, The oil injection pipe (3) is rotatably connected to a sealing plate 1 (4) and a sealing plate 2 (5). A sleeve rod (6) is fixedly installed at one end of the sealing plate 1 (4), and a sleeve (7) is fixedly installed at one end of the sealing plate 2 (5). The sleeve (7) is rotatably connected to the sleeve rod (6). An installation seat (8) is fixedly installed at one end of the oil injection pipe (3). A U-shaped seat (9) is slidably connected to the top of the installation seat (8). A mating groove 1 (10) is opened at one end of the U-shaped seat (9), and a mating groove 2 (12) is opened at one end of the U-shaped seat (9). A mating rod 1 (11) is fixedly installed at one end of the sleeve (7), and the mating rod 1 (11) is adapted to the mating groove 1 (10). A mating rod 2 (13) is fixedly installed at one end of the sleeve rod (6), and the mating rod 2 (13) is adapted to the mating groove 2 (12).

2. The bushing with an oil groove according to claim 1, characterized in that, The top of the mounting base (8) is fixedly installed with a guide slide rod (14), and the guide slide rod (14) is symmetrically fixedly installed on the top of the mounting base (8). The U-shaped seat (9) has guide grooves (15) symmetrically opened at both ends, and the guide grooves (15) are adapted to the guide slide rods (14).

3. A bushing with an oil groove according to claim 2, characterized in that, The U-shaped seat (9) has a symmetrically provided slot (16) at one end, and a limiting rod (17) is slidably connected inside the slot (16). A limiting slot (18) is symmetrically provided on one side of the guide slide rod (14), and the limiting slot (18) is adapted to the limiting rod (17).

4. A bushing with an oil groove according to claim 3, characterized in that, A damping spring (19) is fixedly installed inside the slot (16), and the other end of the damping spring (19) is fixedly installed with the limiting rod (17). The U-shaped seat (9) is slidably connected with a sliding rod (20), and one end of the sliding rod (20) is fixedly installed with the limiting rod (17).

5. A bushing with an oil groove according to claim 4, characterized in that, The bushing body (1) is fixedly mounted with a base (21) at its bottom end, and the base (21) has an installation groove (22) inside.

6. A bushing with an oil groove according to claim 5, characterized in that, The mounting groove (22) is filled with a sponge (23).

Images