Through shaft for new energy automobile
By designing the structure of the positioning ring, sealing ring and lubricating oil conveying bracket in the through shaft of the new energy vehicle, the problem of lubricating oil dripping is solved, effective lubricating effect is achieved, and the service life of the bearing is extended.
Patent Information
- Application Number
- CN202420298653.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-18
AI Technical Summary
In the use of new energy vehicles, bearings through the end of the shaft are easily invaded by dust and impurities, resulting in friction and wear. Conventional oil lubricants are prone to dripping, resulting in poor lubrication effect.
A through-axis structure including a positioning ring, a sealing ring and a lubricating oil conveying bracket is designed. The lubricating oil flows from the oil storage ring to the cover ring through the oil transport pipe and reaches the bearing, and the sealing ring prevents lubricating oil from dripping.
It achieves effective lubrication effect, avoids lubricating oil dripping, and extends the service life of the bearing.
Smart Images
Figure CN222164410U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle through shafts, and in particular relates to a through shaft for new energy vehicles. Background Art
[0002] The through shaft of a vehicle is an important part of conventional fuel vehicles and new energy vehicles. It plays the role of bearing and transmitting vehicle loads. It transmits power by connecting the wheels and the body to ensure the normal driving of the vehicle. The wheel axle bears the force between the wheels and the body, allowing the vehicle to run stably. The Chinese utility model authorized patent application number CN202222732866.4 discloses an oil-lubricated through shaft structure that resists axial impact. The through shaft is an important part of the automobile.
[0003] During the long-term use of new energy vehicles, the bearing at the end of the through-shaft may be damaged. Dust and impurities enter the gap between the end of the through-shaft and the bearing, causing severe friction and wear of the bearing. This is one of the main reasons for bearing failure. The conventional solution is to lubricate the bearing at the end of the through-shaft, but when oil lubricants are usually used for lubrication, the lubricant will drip to the ground. In order to ensure the lubrication effect, excessive lubricant is often added, resulting in poor lubrication, while adding a small amount of lubricant will not lubricate properly. When lubricating the bearing at the end of the through-shaft, there is a problem that the added oil lubricant will drip. For this reason, the present application proposes a through-shaft for new energy vehicles. Utility Model Content
[0004] The utility model aims to provide a through shaft for new energy vehicles, so as to solve the problem that the added oil lubricant will drip when the bearing at the end of the through shaft is lubricated in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a through shaft for new energy vehicles, comprising a through shaft body, an end of the through shaft body is provided with a shaft end bearing, an end of the through shaft body close to the shaft end bearing is provided with a positioning ring, a fixing ring, and a lubricating oil delivery bracket, the lubricating oil delivery bracket comprises a cover ring and a sealing ring fixedly connected, an oil delivery pipe and a ring frame, the ring frame comprises a limiting ring, an oil storage ring and a connecting column, the limiting ring sleeve is arranged on the outside of the positioning ring, the connecting column is installed at a position between the limiting ring and the oil storage ring, the two ends of the oil delivery pipe are respectively connected to the oil storage ring and the cover ring, the sealing ring sleeve is arranged on the outside of the shaft end bearing, and the outer surface of the oil storage ring is provided with an oil port plug.
[0006] Preferably, the positioning ring is a columnar structure of a "T"-shaped structure, and the positioning ring is a hollow structure. The outer surface of the positioning ring is provided with a positioning protrusion, and the inner surface of the limiting ring is provided with a rectangular positioning groove that cooperates with the positioning protrusion.
[0007] Preferably, the cover ring is a hollow structure, the side of the cover ring is provided with a circular groove that cooperates with the shaft end bearing, the oil delivery pipe is connected with the cover ring and the inside of the oil storage ring, and the oil delivery pipe is in an inclined state.
[0008] Preferably, the outer diameter of the sealing ring is the same as the outer diameter of the cover ring, and the inner diameter of the sealing ring is the same as the outer diameter of the shaft end bearing.
[0009] Preferably, an oil filling port is provided on the outer surface of the oil storage ring, and the oil port rubber plug is clearance-matched with the oil filling port.
[0010] Preferably, the inner walls at both ends of the sealing ring are respectively provided with an annular oil storage cavity and an impurity accumulation cavity, the cross-sections of the annular oil storage cavity and the impurity accumulation cavity are inclined, and the inner surface of the sealing ring located in the impurity accumulation cavity is provided with a storage groove.
[0011] Preferably, the outer surface of the through shaft body is provided with symmetrically distributed stabilizing rings and evenly distributed buffer elastic columns, the through shaft body passes through the stabilizing rings, both ends of the buffer elastic columns are respectively connected to the stabilizing rings, and the buffer elastic columns are curved.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the utility model, the lubricant in the oil storage ring flows from the oil delivery pipe to the inside of the cover ring and flows to the shaft end bearing to achieve the lubrication effect. When the shaft body and the shaft end bearing rotate, the lubricating oil in the oil storage ring all flows out for lubrication. The cover ring and the sealing ring have a sealing effect to prevent the lubricating oil from dripping. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of the middle part A;
[0016] Figure 3 For the utility model Figure 1 Schematic diagram of the structure from the side in the middle BB direction;
[0017] Figure 4 It is a schematic cross-sectional structure diagram of the oil storage ring of the utility model;
[0018] Figure 5 For the utility model Figure 4 The enlarged structural diagram of the middle C part;
[0019] In the figure: 1. through shaft body; 2. shaft end bearing; 3. positioning ring; 5. oil delivery pipe; 6. cover ring; 7. sealing ring; 9. fixing ring; 31. positioning protrusion; 41. limiting ring; 42. oil storage ring; 43. connecting column; 71. oil storage cavity; 72. impurity accumulation cavity; 81. stabilizing ring; 82. buffer spring column; 421. oil port rubber plug; 721. accumulation groove. DETAILED DESCRIPTION
[0020] 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.
[0021] Example
[0022] See also Figures 1 to 5 The utility model provides a technical solution: a through shaft for new energy vehicles, comprising a through shaft body 1, an end of the through shaft body 1 is provided with a shaft end bearing 2, the shaft end bearing 2 includes an inner ring and an outer ring, the inner ring is slidably sleeved on the outer side of the end of the through shaft body 1, the through shaft body 1 and the inner ring of the shaft end bearing 2 rotate in the same direction, a positioning ring 3, a fixing ring 9, and a lubricating oil delivery bracket are provided on the end of the through shaft body 1 close to the shaft end bearing 2, the fixing ring 9 is welded on the outer surface of the through shaft body 1, the positioning ring 3 and the fixing ring 9 are screwed together by threads, and the limiting ring 41 is clamped in the position between the positioning ring 3 and the fixing ring 9 to keep it stable; the lubricating oil delivery bracket comprises a fixedly connected cover ring 6 and a sealing ring 7, an oil delivery pipe 5 and a ring frame, the cover ring 6 is sleeved on the outer side of the gap between the through shaft body 1 and the shaft end bearing 2, and the sealing ring 7 is sleeved on the outer side of the shaft end bearing 2 The cover ring 6 and the sealing ring 7 seal the gap to prevent dust and impurities from entering the shaft end bearing 2. The ring frame includes a limiting ring 41, an oil storage ring 42 and a connecting column 43. The limiting ring 41 is sleeved on the outside of the positioning ring 3, and the connecting column 43 is installed at the position between the limiting ring 41 and the oil storage ring 42. The two ends of the oil delivery pipe 5 are respectively connected to the oil storage ring 42 and the cover ring 6. The sealing ring 7 is sleeved on the outside of the shaft end bearing 2. The outer surface of the oil storage ring 42 is provided with an oil port plug 421. Oil lubricant is injected into the oil storage ring 42, and the oil port plug 421 is tightly plugged to prevent the lubricant from leaking. The lubricant inside the oil storage ring 42 flows from the oil delivery pipe 5 to the inside of the cover ring 6 and flows to the shaft end bearing 2 to achieve a lubricating effect. The rotation of the through-shaft body 1 and the shaft end bearing 2, the lubricating oil inside the oil storage ring 42 all flows out for lubrication, and the cover ring 6 and the sealing ring 7 have a sealing effect to prevent the lubricating oil from dripping.
[0023] In this embodiment, the positioning ring 3 is a columnar structure with a "T"-shaped structure, and the positioning ring 3 is a hollow structure. The outer surface of the positioning ring 3 is provided with a positioning protrusion 31, and the inner surface of the limiting ring 41 is provided with a rectangular positioning groove that cooperates with the positioning protrusion 31. The limiting ring 41 is positioned by the positioning protrusion 31, so that the limiting ring 41 on the outside of the positioning ring 3 can be installed accurately.
[0024] In this embodiment, the cover ring 6 is a hollow structure, and a circular groove that cooperates with the shaft end bearing 2 is provided on the side of the cover ring 6. The oil pipe 5 is connected to the inside of the cover ring 6 and the oil storage ring 42, which is conducive to the flow of oil lubricants. The oil pipe 5 is in an inclined state, which is conducive to the transportation of lubricating oil from the oil pipe 5 to the cover ring 6.
[0025] In this embodiment, the outer diameter of the sealing ring 7 is the same as the outer diameter of the cover ring 6, and the inner diameter of the sealing ring 7 is the same as the outer diameter of the shaft end bearing 2. The cover ring 6 is sleeved on the outside of the gap between the through shaft body 1 and the shaft end bearing 2, and the sealing ring 7 is sleeved on the outside of the shaft end bearing 2. The cover ring 6 and the sealing ring 7 seal the gap to prevent dust and impurities from entering the interior of the shaft end bearing 2.
[0026] In this embodiment, an oil filling port is provided on the outer surface of the oil storage ring 42, and the oil port rubber plug 421 is clearance-matched with the oil filling port to prevent the lubricant from leaking out.
[0027] In this embodiment, the inner walls at both ends of the sealing ring 7 are respectively provided with an annular oil storage chamber 71 and an impurity accumulation chamber 72. The oil storage chamber 71 stores overflowed lubricating oil, and the impurity accumulation chamber 72 stores accumulated impurities. The cross-sections of the annular oil storage chamber 71 and the impurity accumulation chamber 72 are inclined. The inner surface of the sealing ring 7 located in the impurity accumulation chamber 72 is provided with an accumulation groove 721, and the accumulation groove 721 stores impurities.
[0028] In this embodiment, the outer surface of the through-shaft body 1 is provided with symmetrically distributed stabilizing rings 81 and evenly distributed buffer springs 82. The buffer springs 82 are made of spring steel material. The buffer springs 82 are welded and connected to the stabilizing ring 81. The through-shaft body 1 passes through the stabilizing ring 81. The two ends of the buffer springs 82 are respectively connected to the stabilizing ring 81. The buffer springs 82 are curved and elastic. When the through-shaft body 1 is subjected to axial impact, the buffer springs 82 can withstand a certain impact and deform, thereby buffering part of the impact.
[0029] The working principle and use process of this utility model:
[0030] When lubricating the shaft end bearing 2 at the end of the through-shaft body 1, open the oil port rubber plug 421, inject oil lubricating oil into the oil storage ring 42, plug the oil port rubber plug 421, and the lubricant inside the oil storage ring 42 flows from the oil delivery pipe 5 to the inside of the cover ring 6, and flows to the shaft end bearing 2 to achieve the lubrication effect. When the through-shaft body 1 and the shaft end bearing 2 rotate, the lubricating oil inside the oil storage ring 42 all flows out for lubrication, and the cover ring 6 and the sealing ring 7 have a sealing effect to prevent the lubricating oil from dripping.
[0031] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A through shaft for a new energy vehicle, comprising a through shaft body (1), wherein an end of the through shaft body (1) is provided with a shaft end bearing (2), characterized in that: A positioning ring (3), a fixing ring (9), and a lubricating oil delivery bracket are provided at the end of the through shaft body (1) close to the shaft end bearing (2). The lubricating oil delivery bracket comprises a cover ring (6) and a sealing ring (7) which are fixedly connected, an oil delivery pipe (5), and a ring frame. The ring frame comprises a limiting ring (41), an oil storage ring (42), and a connecting column (43). The limiting ring (41) is sleeved on the outer side of the positioning ring (3). The connecting column (43) is installed at a position between the limiting ring (41) and the oil storage ring (42). The two ends of the oil delivery pipe (5) are respectively connected to the oil storage ring (42) and the cover ring (6). The sealing ring (7) is sleeved on the outer side of the shaft end bearing (2). The outer surface of the oil storage ring (42) is provided with an oil port rubber plug (421).
2. The through shaft for new energy vehicles according to claim 1, characterized in that: The positioning ring (3) is a columnar structure with a "T"-shaped structure, and the positioning ring (3) is a hollow structure. The outer surface of the positioning ring (3) is provided with a positioning protrusion (31), and the inner surface of the limiting ring (41) is provided with a rectangular positioning groove that cooperates with the positioning protrusion (31).
3. The through shaft for new energy vehicles according to claim 1, characterized in that: The cover ring (6) is a hollow structure. A circular groove matching the shaft end bearing (2) is provided on the side of the cover ring (6). The oil delivery pipe (5) is connected to the cover ring (6) and the inside of the oil storage ring (42). The oil delivery pipe (5) is in an inclined state.
4. The through shaft for new energy vehicles according to claim 1, characterized in that: The outer diameter of the sealing ring (7) is the same as the outer diameter of the cover ring (6), and the inner diameter of the sealing ring (7) is the same as the outer diameter of the shaft end bearing (2).
5. The through shaft for new energy vehicles according to claim 1, characterized in that: The outer surface of the oil storage ring (42) is provided with an oil filling port, and the oil port rubber plug (421) is clearance-matched with the oil filling port.
6. The through shaft for new energy vehicles according to claim 1, characterized in that: The inner walls at both ends of the sealing ring (7) are respectively provided with an annular oil storage cavity (71) and an impurity accumulation cavity (72); the cross sections of the annular oil storage cavity (71) and the impurity accumulation cavity (72) are in an inclined state; and the inner surface of the sealing ring (7) located in the impurity accumulation cavity (72) is provided with an accumulation groove (721).
7. The through shaft for new energy vehicles according to claim 1, characterized in that: The outer surface of the through shaft body (1) is provided with symmetrically distributed stabilizing rings (81) and evenly distributed buffer spring columns (82); the through shaft body (1) passes through the stabilizing ring (81); both ends of the buffer spring column (82) are respectively connected to the stabilizing ring (81); and the buffer spring column (82) is in a curved shape.