Bearing system with lubricating function
By designing a bearing system with lubrication function, including cylindrical roller bearings and oil supply mechanisms, the copper sleeves and standard bearings on the bridge gear shaft in the prior art lack lubrication function and short service life, and achieve high temperature Effective lubrication and extended service life in the environment.
Patent Information
- Application Number
- CN202421401852.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-19
AI Technical Summary
In the prior art, the copper sleeve and standard bearing on the bridge gear shaft lack lubrication function, resulting in a short service life and prone to excessive wear or premature failure in high-temperature operating environments.
A bearing system with lubrication function is designed, including cylindrical roller bearings and oil supply mechanisms. It is connected to the oil supply mechanism through a sealing mechanism, and lubricating oil is continuously added to the bearing to prevent lubricating oil from leaking and extend the service life of the bearing.
The bearing system can continuously supply oil, effectively reduce the wear of the internal structure and increase service life, especially in high-temperature operating environments, avoiding excessive wear or premature failure of standard bearings.
Smart Images
Figure CN222458083U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to a bearing system with a lubrication function. Background Art
[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy.
[0003] One of the most common application scenarios of bearings is for the rotational connection of rotating shafts. In the prior art, the bridge gear is one of the main transmission components in the gear transmission box, which is used between the driving gear and the driven gear, and between the driven gear and the driven gear to change the rotation direction between the above gears. Generally, the bridge gear is installed on the bridge gear shaft, and the bridge gear shaft is rotatably installed in the bearing seat of the transmission box through a copper sleeve (also called a copper shaft sleeve).
[0004] Copper sleeves are a type of bearing. Although they have high hardness, excellent wear resistance, are not prone to seizure, have good casting and cutting performance, and have good corrosion resistance in the atmosphere and fresh water, due to the material characteristics of the copper sleeve itself and the sliding friction connection between the copper sleeve and the shaft, the copper sleeve has high cost and short service life. After the copper sleeve is worn, it begins to wear the shaft. Once the shaft is worn, it will not only affect the service life of the shaft, but also increase the difficulty in later maintenance, installation and disassembly.
[0005] In view of the above problems, mechanical equipment using single-piece traditional bearings has appeared in the prior art, but there is currently no bearing suitable for replacing copper sleeves on the bridge gear shaft. The use of standard bearings may cause performance degradation under certain extreme working conditions. For example, in a high-temperature operating environment, in the absence of a specially designed lubrication system, standard bearings may also experience excessive wear or premature failure. To this end, we propose a bearing system with lubrication function. Utility Model Content
[0006] The utility model aims to solve the problems that the copper sleeve and the standard bearing used for the bridge gear shaft in the prior art lack lubrication function and have a short service life, and proposes a bearing system with lubrication function.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A bearing system with lubrication function comprises a cylindrical roller bearing and an oil supply mechanism. The two axial ends of the cylindrical roller bearing are provided with sealing mechanisms, the sealing mechanism is provided with an oil nozzle, and the oil supply mechanism is connected to the inside of the cylindrical roller bearing through the oil nozzle.
[0009] Further, the cylindrical roller bearing comprises a bearing outer ring and a bearing inner ring, a retainer is arranged between the bearing outer ring and the bearing inner ring, and a cylindrical roller is installed inside the retainer;
[0010] The axial length of the retainer is smaller than the outer ring of the bearing and the inner ring of the bearing. The sealing mechanism is located between the outer ring of the bearing and the inner ring of the bearing and is located outside the retainer.
[0011] Further, the sealing mechanism comprises an outer ring cover plate connected to the inner circumferential wall of the bearing outer ring and an inner ring cover plate connected to the outer circumferential wall of the bearing inner ring, a gap is provided between the outer ring cover plate and the inner ring cover plate, an inner sealing ring is provided on the inner side of the outer ring cover plate, the top of the inner sealing ring is bonded to the inner wall of the outer ring cover plate, and the bottom of the inner sealing ring is abutted against the inner wall of the inner ring cover plate;
[0012] The oil nozzle is installed on the outer ring cover plate.
[0013] Furthermore, an elastic connecting plate is provided between the outer ring cover plate and the inner sealing ring, the outer ring edge of the elastic connecting plate is connected to the outer ring cover plate, and the inner ring edge of the elastic connecting plate is connected to the inner sealing ring.
[0014] Furthermore, the elastic connecting plate includes an outer ring close to the outer ring side and inner grille bars close to the inner ring side, a plurality of the inner grille bars are evenly distributed at radial intervals, and the outer ring and the inner grille bars are an integrally formed structure.
[0015] Furthermore, an outer sealing ring is arranged on the inner side of the elastic connecting plate, the outer end surface of the outer sealing ring is bonded to the inner ring cover plate, and the inner end surface of the outer sealing ring is abutted against the inner sealing ring.
[0016] Furthermore, the oil supply mechanism includes an oil storage tank, a liquid pump, and a recovery tank. The oil nozzle includes an oil inlet nozzle installed on the top of one of the sealing mechanisms and an oil outlet nozzle installed on the bottom of another of the sealing mechanisms. The oil storage tank is connected to the inlet end of the liquid pump, the outlet end of the liquid pump is connected to the oil inlet nozzle, and the recovery tank is connected to the oil outlet nozzle.
[0017] Compared with the prior art, the utility model provides a bearing system with lubrication function, which has the following beneficial effects:
[0018] The utility model discloses a bearing system with a lubrication function. A sealing mechanism forms a closed structure inside the cylindrical roller bearing. When in use, the gear shaft is fixed in the cylindrical roller bearing, and the cylindrical roller bearing is then fixed on the bearing seat. When the gear shaft drives the cylindrical roller bearing to rotate, lubricating oil is added to the cylindrical roller bearing through the oil supply mechanism, and the sealing mechanism prevents the lubricating oil from leaking. Compared with existing standard bearings and bearings filled with lubricating oil, the bearing system can continuously supply oil, effectively extending the service life of the cylindrical roller bearing.
[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent; and will be apparent to those skilled in the art based on the following examination and study to some extent; or, may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;
[0021] Figure 2 It is a three-dimensional schematic diagram of the cylindrical roller bearing structure of the utility model;
[0022] Figure 3 It is a schematic diagram of a partial cross-section of a cylindrical roller bearing of the utility model from an upper front view;
[0023] Figure 4 For the utility model Figure 3 A schematic diagram of the structure enlargement of part A;
[0024] Figure 5 It is a schematic diagram of a partial cross-section of a cylindrical roller bearing of the utility model from a rear upper perspective;
[0025] Figure 6 For the utility model Figure 5 A schematic diagram of the structure of part B in the middle is enlarged;
[0026] Figure 7 It is a schematic diagram of a partial cross-section of a cylindrical roller bearing of the utility model from the right side perspective;
[0027] Figure 8 For the utility model Figure 7 The enlarged schematic diagram of the structure of part C in the middle;
[0028] Fig. 9 It is a three-dimensional schematic diagram of the elastic connecting plate structure of the utility model;
[0029] Fig.10 It is a right side schematic diagram of the elastic connecting plate structure of the present utility model.
[0030] In the figure:
[0031] 1. Cylindrical roller bearing; 101. Bearing outer ring; 102. Retainer; 103. Bearing inner ring; 104. Cylindrical roller; 2. Oil supply mechanism; 201. Oil storage tank; 202. Liquid pump; 203. Recovery tank; 3. Sealing mechanism; 301. Outer ring cover plate; 302. Inner ring cover plate; 303. Elastic connecting plate; 304. Inner sealing ring; 305. Outer sealing ring; 306. Outer circular ring; 307. Inner grille bar; 4. Oil nozzle; 401. Oil inlet nozzle; 402. Oil outlet nozzle. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0033] Reference Figure 1-10 The utility model discloses a bearing system with lubrication function, comprising a cylindrical roller bearing 1 and an oil supply mechanism 2. Sealing mechanisms 3 are arranged at both axial ends of the cylindrical roller bearing 1. An oil nozzle 4 is arranged on the sealing mechanism 3. The oil supply mechanism 2 is connected to the inside of the cylindrical roller bearing 1 through the oil nozzle 4.
[0034] The axial ends of the cylindrical roller bearing 1 are sealed by using a sealing mechanism 3, so that a closed space is formed inside the cylindrical roller bearing 1. The oil supply mechanism 2 is connected to the inside of the cylindrical roller bearing 1 through an oil nozzle 4, and then lubricating oil is added to the inside of the cylindrical roller bearing 1 through the oil supply mechanism 2, so that the cylindrical roller bearing 1 can obtain sufficient lubrication effect during its service life, thereby reducing the wear of the internal structure and increasing its service life.
[0035] The cylindrical roller bearing 1 comprises a bearing outer ring 101 and a bearing inner ring 103, a retainer 102 is arranged between the bearing outer ring 101 and the bearing inner ring 103, and a cylindrical roller 104 is installed inside the retainer 102;
[0036] The axial length of the bearing outer ring 101 and the bearing inner ring 103 is greater than the radial length, so that the gear shaft sleeved in the bearing inner ring 103 and the cylindrical roller bearing 1 have a larger contact area.
[0037] The axial length of the retainer 102 is smaller than the bearing outer ring 101 and the bearing inner ring 103 . The sealing mechanism 3 is located between the bearing outer ring 101 and the bearing inner ring 103 and outside the retainer 102 .
[0038] The retainer 102 and the cylindrical roller 104 are located in a closed space enclosed by the bearing outer ring 101 , the bearing inner ring 103 and the sealing mechanism 3 .
[0039] When in use, the bearing inner ring 103 is sleeved on the gear shaft, and the bearing inner ring 103 rotates synchronously with the gear shaft. The bearing outer ring 101, the retainer 102, the cylindrical roller 104 and the bearing inner ring 103 rotate relative to each other, thereby reducing the wear between the gear shaft and the cylindrical roller bearing 1.
[0040] The sealing mechanism 3 includes an outer ring cover plate 301 connected to the inner circumferential wall of the bearing outer ring 101 and an inner ring cover plate 302 connected to the outer circumferential wall of the bearing inner ring 103, a gap is arranged between the outer ring cover plate 301 and the inner ring cover plate 302, an inner sealing ring 304 is arranged on the inner side of the outer ring cover plate 301, the top of the inner sealing ring 304 is bonded to the inner wall of the outer ring cover plate 301, and the bottom of the inner sealing ring 304 is abutted against the inner wall of the inner ring cover plate 302.
[0041] During the rotation, the outer ring cover plate 301 and the bearing outer ring 101 are relatively stationary, the inner ring cover plate 302 and the bearing inner ring 103 rotate synchronously, and the inner sealing ring 304 and the inner ring cover plate 302 rotate relatively.
[0042] The oil supply mechanism 2 introduces high-pressure lubricating oil into the cylindrical roller bearing 1. Under the pressure of the lubricating oil, the axial outer wall of the inner sealing ring 304 and the axial inner wall of the inner ring cover plate 302 fit tightly and slide and rub against each other to achieve a sealing effect and avoid leakage of the lubricating oil.
[0043] The oil nozzle 4 is mounted on the outer ring cover plate 301 .
[0044] During the operation of the cylindrical roller bearing 1 , the outer ring cover plate 301 and the bearing seat are relatively stationary, so the oil nozzle 4 is also in a stationary state, so that it can maintain a connected state with the oil supply mechanism 2 .
[0045] An elastic connecting plate 303 is provided between the outer ring cover plate 301 and the inner sealing ring 304 . The outer ring edge of the elastic connecting plate 303 is connected to the outer ring cover plate 301 , and the inner ring edge of the elastic connecting plate 303 is connected to the inner sealing ring 304 .
[0046] The elastic connecting plate 303 can undergo elastic deformation in the axial direction of the cylindrical roller bearing 1. When the pressure of the lubricating oil presses on the elastic connecting plate 303 and the inner sealing ring 304 from the inside to the outside, the elastic connecting plate 303 undergoes elastic deformation, so that the inner sealing ring 304 and the inner ring cover plate 302 maintain sealing contact.
[0047] Since there is sliding friction between the inner sealing ring 304 and the inner ring cover plate 302 , this sealing contact ensures that the sealing effect is still maintained when wear occurs between the inner sealing ring 304 and the inner ring cover plate 302 , thereby extending the service life of the cylindrical roller bearing 1 .
[0048] The elastic connecting plate 303 includes an outer ring 306 close to the outer ring side and inner grille bars 307 close to the inner ring side. The plurality of inner grille bars 307 are evenly distributed radially at intervals. The outer ring 306 and the inner grille bars 307 are an integrally formed structure.
[0049] A deformation space is formed between two adjacent inner grid bars 307. When the inner sealing ring 304 is worn, the inner grid bars 307 and the inner sealing ring 304 simultaneously move closer to the inner ring cover plate 302, and the deformation space between the adjacent inner grid bars 307 becomes narrower, and the inner grid bars 307 move closer to each other.
[0050] An outer sealing ring 305 is provided on the inner side of the elastic connecting plate 303 . The outer end surface of the outer sealing ring 305 is bonded to the inner ring cover plate 302 , and the inner end surface of the outer sealing ring 305 is in contact with the inner sealing ring 304 .
[0051] The elastic connecting plate 303 can be made of an elastic sheet, the inner sealing ring 304 uses an annular polytetrafluoroethylene gasket, which has high wear resistance and self-lubricating effect, and the outer sealing ring 305 uses an annular graphite structure, which also has certain wear resistance and self-lubricating effect, reducing friction resistance, thereby reducing the wear caused by sliding friction.
[0052] The oil supply mechanism 2 includes an oil storage tank 201, a liquid pump 202, and a recovery tank 203. The oil nozzle 4 includes an oil inlet nozzle 401 installed on the top of one of the sealing mechanisms 3 and an oil outlet nozzle 402 installed on the bottom of the other sealing mechanism 3. The oil storage tank 201 is connected to the inlet end of the liquid pump 202, the outlet end of the liquid pump 202 is connected to the oil inlet nozzle 401, and the recovery tank 203 is connected to the oil outlet nozzle 402.
[0053] The lubricating oil is pumped from the oil storage tank 201 by the liquid pump 202 through the oil inlet nozzle 401 into the interior of the cylindrical roller bearing 1, flows through the gap between the retainer 102 and the cylindrical roller 104, and then flows into the recovery tank 203 from the oil outlet nozzle 402. In addition to providing lubrication for the retainer 102 and the cylindrical roller 104, it can also remove the high heat of the retainer 102 and the cylindrical roller 104 due to friction, and at the same time, it can also take away the tiny debris generated by friction, further reducing the friction resistance of the retainer 102 and the cylindrical roller 104 during rotation.
[0054] Working principle: When in use, the bearing inner ring 103 is sleeved on the outside of the gear shaft, and the bearing outer ring 101 is embedded in the inside of the bearing seat. The liquid pump 202 is started to continuously introduce pressurized lubricating oil into the interior of the cylindrical roller bearing 1. The lubricating oil flows into the recovery box 203 after passing through the interior of the cylindrical roller bearing 1.
[0055] When the gear shaft rotates, it drives the bearing inner ring 103, the inner ring cover plate 302, and the outer sealing ring 305 to rotate synchronously. The bearing outer ring 101, the outer ring cover plate 301, the elastic connecting plate 303, the inner sealing ring 304 and the bearing seat remain stationary. The cylindrical roller 104 rolls between the bearing outer ring 101 and the bearing inner ring 103. There is sliding friction between the inner sealing ring 304 and the outer sealing ring 305. The pressure of the lubricating oil keeps the inner sealing ring 304 and the outer sealing ring 305 in close contact with each other to prevent leakage of the lubricating oil.
[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0058] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A bearing system with a lubrication function, comprising a cylindrical roller bearing (1) and an oil supply mechanism (2), characterized in that: Sealing mechanisms (3) are provided at both axial ends of the cylindrical roller bearing (1), an oil nozzle (4) is provided on the sealing mechanism (3), and the oil supply mechanism (2) is connected to the interior of the cylindrical roller bearing (1) via the oil nozzle (4).
2. A bearing system with lubrication function according to claim 1, characterized in that: The cylindrical roller bearing (1) comprises a bearing outer ring (101) and a bearing inner ring (103), a retainer (102) is provided between the bearing outer ring (101) and the bearing inner ring (103), and a cylindrical roller (104) is installed inside the retainer (102); The axial length of the retainer (102) is smaller than the bearing outer ring (101) and the bearing inner ring (103); the sealing mechanism (3) is located between the bearing outer ring (101) and the bearing inner ring (103), and is located outside the retainer (102).
3. A bearing system with lubrication function according to claim 2, characterized in that: The sealing mechanism (3) comprises an outer ring cover plate (301) connected to the inner circumferential wall of the bearing outer ring (101) and an inner ring cover plate (302) connected to the outer circumferential wall of the bearing inner ring (103); a gap is provided between the outer ring cover plate (301) and the inner ring cover plate (302); an inner sealing ring (304) is provided on the inner side of the outer ring cover plate (301); the top of the inner sealing ring (304) is bonded to the inner wall of the outer ring cover plate (301); and the bottom of the inner sealing ring (304) is in contact with the inner wall of the inner ring cover plate (302); The oil nozzle (4) is mounted on the outer ring cover plate (301).
4. A bearing system with lubrication function according to claim 3, characterized in that: An elastic connection plate (303) is provided between the outer ring cover plate (301) and the inner sealing ring (304); the outer ring edge of the elastic connection plate (303) is connected to the outer ring cover plate (301), and the inner ring edge of the elastic connection plate (303) is connected to the inner sealing ring (304).
5. A bearing system with lubrication function according to claim 4, characterized in that: The elastic connecting plate (303) comprises an outer ring (306) close to the outer ring side and inner grille bars (307) close to the inner ring side, a plurality of the inner grille bars (307) are evenly distributed at intervals in a radial pattern, and the outer ring (306) and the inner grille bars (307) are an integrally formed structure.
6. A bearing system with lubrication function according to claim 5, characterized in that: An outer sealing ring (305) is provided on the inner side of the elastic connecting plate (303); the outer end surface of the outer sealing ring (305) is bonded to the inner ring cover plate (302); and the inner end surface of the outer sealing ring (305) is in contact with the inner sealing ring (304).
7. The bearing system with lubrication function according to claim 1, characterized in that: The oil supply mechanism (2) comprises an oil storage tank (201), a liquid pump (202), and a recovery tank (203); the oil nozzle (4) comprises an oil inlet nozzle (401) mounted on the top of one of the sealing mechanisms (3) and an oil outlet nozzle (402) mounted on the bottom of another of the sealing mechanisms (3); the oil storage tank (201) is connected to an inlet end of the liquid pump (202); the outlet end of the liquid pump (202) is connected to the oil inlet nozzle (401); and the recovery tank (203) is connected to the oil outlet nozzle (402).