CN221187992U - Coaxial drive axle wheel end structure - Google Patents
Coaxial drive axle wheel end structure Download PDFInfo
- Publication number
- CN221187992U CN221187992U CN202323413768.5U CN202323413768U CN221187992U CN 221187992 U CN221187992 U CN 221187992U CN 202323413768 U CN202323413768 U CN 202323413768U CN 221187992 U CN221187992 U CN 221187992U
- Authority
- CN
- China
- Prior art keywords
- bearing
- brake
- axle
- wheel end
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 7
- 230000007547 defect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a coaxial drive axle wheel end structure, which comprises a brake hub, wherein a brake is arranged in the brake hub, a bearing seat is arranged in the brake, a bearing is arranged in the bearing seat, a wheel end flange is arranged on one side of the brake, and one end of the wheel end flange is fixedly connected with a bridge pipe; the axle shaft penetrates through the bearing, the wheel end flange and the axle tube, the bearing sleeve is arranged on the axle shaft, and the end part of the axle shaft is fixed on the brake hub.
Description
Technical Field
The utility model belongs to the technical field of vehicle driving, and particularly relates to a coaxial drive axle wheel end structure.
Background
In the current automotive industry, electrification is accelerated. The coaxial drive axle is used as one of solutions of a drive part of a pick-up and a light commercial vehicle, integrates a motor, a speed reducer and an axle housing, effectively improves efficiency and NVH performance, and is one of the future development trends. The coaxial drive axle wheel end structure organically integrates parts such as a brake, a brake hub, a bearing, a wheel end flange, a sealing gasket and the like, and plays roles of transmitting torque, bearing and braking. The structural design of the wheel end of the coaxial drive axle is critical to the whole axle performance, and the performances of compactness, bearing capacity, sealing performance and the like are related.
The existing partial wheel end structural design has the defects of large volume, poor bearing property, poor sealing property and the like caused by unreasonable structural arrangement. If the brake is nested on the bearing seat, the bearing seat is connected with the wheel end flange, so that the reference circle of the connecting bolts among the brake, the bearing seat and the wheel end flange is increased, and the brake with smaller model is more difficult to select; part of the bearings are arranged far away from the wheel end, so that the problem of poor bearing capacity is caused; part of the end faces adopt a gluing and sealing mode, so that the defect of poor sealing performance is caused.
The utility model of CN218858129U discloses a coaxial distributed electric drive axle and car, which comprises coaxially arranged drive device, speed change device, transmission device, brake device, hub unit and wheel rim system, under the name of 2023, 4 and 14. The coaxial distributed electric drive bridge has low structural compactness and cannot improve the bearing performance of the vehicle.
Disclosure of utility model
The utility model aims at overcoming the defects of the prior art, and provides a coaxial drive axle wheel end structure which is reasonable in structural arrangement, compact in structure and good in bearing and sealing performance.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The coaxial drive axle wheel end structure comprises a brake hub, wherein a brake is arranged in the brake hub, a bearing seat is arranged in the brake, a bearing is arranged in the bearing seat, a wheel end flange is arranged on one side of the brake, and one end of the wheel end flange is fixedly connected with an axle tube; the axle shaft penetrates through the bearing, the wheel end flange and the axle tube, the bearing is sleeved on the axle shaft, and the brake hub is fixed at the end part of the axle shaft.
The bearing seat is characterized in that a bearing seat inner hole is formed in one side of the bearing seat, a brake inner hole is formed in one side of the brake, a mounting step is formed in one end of the wheel end flange and extends into the brake to be matched with the brake inner hole, and the end of the mounting step is abutted to the bearing.
One end of the bearing seat is abutted against the inner wall of the brake, a sealing gasket is sleeved on the mounting step, and the sealing gasket is positioned between the end part of the bearing seat and the inner wall of the brake.
The axle shaft is sleeved with a pre-tightening sleeve, the pre-tightening sleeve is positioned in the wheel end flange, a clamping ring is arranged on one side of the axle shaft, and two sides of the pre-tightening sleeve are respectively abutted to the bearing and the clamping ring.
The semi-axle is provided with a positioning step on one side of the bearing, one side of the bearing is abutted to the positioning step, and an oil seal is arranged between the positioning step and the bearing seat.
The brake is characterized in that a mounting hole is formed in one end of the brake hub, the end of the half shaft is matched with the mounting hole, a connecting platform is arranged at one end of the half shaft, a bolt is arranged on the brake hub, and the bolt is connected with the brake hub and the connecting platform.
One end of the pre-tightening sleeve is provided with a step, and the step is provided with signal teeth.
The wheel end flange is provided with a boss, the boss end and the axle pipe end are of inclined structures, a notch is arranged between the boss and the axle pipe end, and the notch is of a V-shaped structure.
The end part of the wheel end flange extends into the bridge pipe and is fixed by welding.
The utility model has the technical effects that: by adopting the coaxial drive axle wheel end structure, parts such as a brake, a brake hub, a bearing, a wheel end flange, a sealing gasket and the like are reasonably arranged, and the coaxial drive axle wheel end structure has the advantages of compact structure, good bearing performance and good sealing performance. Each part compact structure in the transaxle is favorable to reducing occupation space, improves the compactness of part installation, and bearing design is reasonable, is closer to the wheel end, has improved the bearing capacity of vehicle, through design oil blanket and pretension cover in bearing both sides, makes the bearing have higher and good sealing performance of reliability.
Drawings
The present specification includes the following drawings, the contents of which are respectively:
Fig. 1 is a schematic cross-sectional view of the axle end structure of the present utility model.
Marked in the figure as: 1. a brake hub; 2. a bearing; 3. an oil seal; 4. a half shaft; 5. a brake; 6. a bearing seat; 7. a sealing gasket; 8. wheel end flange; 9. a bridge pipe; 10. a clasp; 11. signal teeth; 12. pre-tightening the sleeve; 13. a mounting hole; 14. mounting steps; 15. positioning the step; 16. a connecting platform; 17. a bolt; 18. an inner hole of the bearing seat; 19. a brake inner bore; 20. a step; 21. a boss; 22. and (5) a notch.
Detailed Description
The following detailed description of the embodiments of the utility model, given by way of example only, is presented in the accompanying drawings to aid those skilled in the art in a more complete, accurate and thorough understanding of the inventive concepts and aspects of the utility model, and to facilitate their practice.
As shown in fig. 1, the coaxial drive axle wheel end structure comprises a brake hub 1, wherein a brake 5 is arranged in the brake hub 1, a bearing seat 6 is arranged in the brake 5, a bearing 2 is arranged in the bearing seat 6, a wheel end flange 8 is arranged on one side of the brake 5, and one end of the wheel end flange 8 is fixedly connected with an axle tube 9; the axle shaft 4 penetrates through the bearing 2, the wheel end flange 8 and the axle tube 9, the bearing 2 is sleeved on the axle shaft 4, and the brake hub 1 is fixed at the end part of the axle shaft 4.
The coaxial drive axle wheel end structure has the advantages of compact overall structure, small occupied space and high space utilization rate, and solves the problems of large volume, poor bearing performance and poor sealing performance of the existing drive axle wheel end structure. In the above structure, the bearing seat 6 is arranged inside the brake 5, the bearing 2 is arranged in the bearing seat 6, and the bearing 2 is closer to the wheel end, so that the vehicle bearing capacity is better.
As shown in fig. 1, a bearing seat inner hole 18 is formed in one side of the bearing seat 6, a brake inner hole 19 is formed in one side of the brake 5, a mounting step 14 is formed in one end of the wheel end flange 8, the mounting step 14 stretches into the brake 5 and is matched with the brake inner hole 19, and the end of the mounting step 14 is abutted against the bearing 2. One side of the brake 5 is positioned between the bearing seat 6 and the wheel end flange 8, one side of the wheel end flange 8 protrudes out of a section of excircle, and the mounting step 14 is matched with the bearing seat inner hole 18. By adopting the structure, the reference circle radius of the connecting bolt 17 among the bearing seat 6, the brake 5 and the wheel end flange 8 can be reduced, and the brake 5 with smaller specification can be selected, so that the structure is more compact, the contact surface between structural members is larger, and the strength of assembly connection is improved.
As shown in fig. 1, one end of the bearing seat 6 abuts against the inner wall of the brake 5, the mounting step 14 is sleeved with a sealing gasket 7, and the sealing gasket 7 is located between the end of the bearing seat 6 and the inner wall of the brake 5. The sealing gasket 7 is reasonable in position design, can play axial and radial sealing effect, effectively prevents that external moisture from getting into and causing structure corrosion scheduling problem.
As shown in fig. 1, a pre-tightening sleeve 12 is sleeved on the half shaft 4, the pre-tightening sleeve 12 is positioned in the wheel end flange 8, a clamping ring 10 is arranged on one side of the half shaft 4, which is positioned on the pre-tightening sleeve 12, and two sides of the pre-tightening sleeve 12 are respectively abutted against the bearing 2 and the clamping ring 10. The pre-tightening sleeve 12 provides pre-tightening force for the bearing 2, reduces vibration and noise generated in the working process of the pre-tightening sleeve, improves the service life and reliability of the bearing 2, limits the axial displacement of the pre-tightening sleeve 12 by the clamping ring 10, ensures that the pre-tightening sleeve 12 can provide long-term reliable pre-tightening force, and can enable all components on the half shaft 4 to be in accurate mounting positions.
As shown in fig. 1, a positioning step 15 is arranged on one side of the half shaft 4, which is positioned on the bearing 2, one side of the bearing 2 is abutted against the positioning step 15, and an oil seal 3 is arranged between the positioning step 15 and the bearing seat 6. The positioning step 15 is used for accurately installing and positioning the bearing 2, the oil seal 3 is used for sealing and dust prevention of the bearing seat 6, the oil seal 3 is used for isolating the bearing seat 6, and lubricating oil is prevented from leaking onto automobile brake components.
As shown in fig. 1, one end of the brake hub 1 is provided with a mounting hole 13, the end of the half shaft 4 is matched with the mounting hole 13, one end of the half shaft 4 is provided with a connecting platform 16, the brake hub 1 is provided with a bolt 17, and the bolt 17 is connected with the brake hub 1 and the connecting platform 16. The connecting platform 16 provides a connecting position for the half shaft 4 and the brake hub 1, simultaneously enlarges the stressed contact area of the end part of the half shaft 4 and the brake hub 1, ensures more uniform stress of the two parts when the vehicle runs, and ensures higher stability after the half shaft 4 is connected.
As shown in fig. 1, one end of the pretensioning sleeve 12 is provided with a step 20, and the step 20 is provided with signal teeth 11. With the structure, the signal teeth 11 are arranged on the pre-tightening sleeve 12, so that the overall structural compactness is improved, the signal teeth 11 provide signals for the rotating speed sensor, the rotating speed sensor transmits the signals to the electric drive system, and the electric drive system controls the running state of the automobile according to the received signals.
As shown in FIG. 1, the wheel end flange 8 is provided with a boss 21, the end part of the boss 21 and the end part of the bridge pipe 9 are both of inclined structures, a notch 22 is arranged between the boss 21 and the end part of the bridge pipe 9, and the notch 22 is of a V-shaped structure. The structure provides a connecting position for the wheel end flange 8 and the bridge pipe 9, and the V-shaped notch 22 enlarges the working space of the girth welding process, enlarges the welding area and improves the connecting strength.
The end of the wheel end flange 8 extends into the bridge pipe 9 and is fixed by welding. The outer circle of the end part of the wheel end flange 8 is matched with the inner circle of the bridge pipe 9, and the wheel end flange and the bridge pipe are fixed together by adopting girth welding on the V-shaped notch 22.
The coaxial drive axle wheel end structure reasonably arranges parts such as the brake 5, the brake hub 1, the bearing 2, the wheel end flange 8, the sealing gasket 7 and the like, and has the advantages of compact structure, good bearing performance and good sealing performance. The structure of each part in the drive axle is compact, the occupied space is reduced, the compactness of part installation is improved, the bearing 2 is reasonable in design and is closer to the wheel end, the bearing performance of a vehicle is improved, and the bearing 2 has higher reliability and good sealing performance through the oil seals 3 and the pre-tightening sleeves 12 arranged on the two sides of the bearing 2.
The utility model is described above by way of example with reference to the accompanying drawings. It will be clear that the utility model is not limited to the embodiments described above. As long as various insubstantial improvements are made using the method concepts and technical solutions of the present utility model; or the utility model is not improved, and the conception and the technical scheme are directly applied to other occasions and are all within the protection scope of the utility model.
Claims (9)
1. A coaxial drive axle wheel end structure which characterized in that: the novel brake comprises a brake hub (1), wherein a brake (5) is arranged in the brake hub (1), a bearing seat (6) is arranged in the brake (5), a bearing (2) is arranged in the bearing seat (6), a wheel end flange (8) is arranged on one side of the brake (5), and one end of the wheel end flange (8) is fixedly connected with a bridge pipe (9); the axle shaft (4) penetrates through the bearing (2), the wheel end flange (8) and the axle tube (9), the bearing (2) is sleeved on the axle shaft (4), and the brake hub (1) is fixed at the end part of the axle shaft (4).
2. The axle end structure of claim 1, wherein: bearing frame (6) one side is equipped with bearing frame hole (18), stopper (5) one side is equipped with stopper hole (19), wheel end flange (8) one end is equipped with installation step (14), installation step (14) stretch into in stopper (5) and with stopper hole (19) cooperation, installation step (14) tip and bearing (2) butt.
3. The axle end structure of claim 2, wherein: one end of the bearing seat (6) is abutted against the inner wall of the brake (5), the mounting step (14) is sleeved with a sealing gasket (7), and the sealing gasket (7) is positioned between the end of the bearing seat (6) and the inner wall of the brake (5).
4. A coaxial transaxle wheel end structure according to claim 3 wherein: the novel wheel end flange is characterized in that a pre-tightening sleeve (12) is sleeved on the half shaft (4), the pre-tightening sleeve (12) is positioned in the wheel end flange (8), a clamping ring (10) is arranged on one side of the pre-tightening sleeve (12) on the half shaft (4), and two sides of the pre-tightening sleeve (12) are respectively abutted to the bearing (2) and the clamping ring (10).
5. The axle end structure of claim 4, wherein: the semi-axle (4) is provided with a positioning step (15) on one side of the bearing (2), one side of the bearing (2) is abutted to the positioning step (15), and an oil seal (3) is arranged between the positioning step (15) and the bearing seat (6).
6. The axle construction according to any one of claims 1-5, wherein: the brake is characterized in that a mounting hole (13) is formed in one end of the brake hub (1), the end of the half shaft (4) is matched with the mounting hole (13), a connecting platform (16) is arranged at one end of the half shaft (4), a bolt (17) is arranged on the brake hub (1), and the bolt (17) is connected with the brake hub (1) and the connecting platform (16).
7. The axle end structure of claim 4, wherein: one end of the pre-tightening sleeve (12) is provided with a step (20), and the step (20) is provided with signal teeth (11).
8. The axle end structure of claim 6, wherein: be equipped with boss (21) on wheel end flange (8), boss (21) tip and bridge pipe (9) tip are the slope structure, be equipped with opening (22) between boss (21) and bridge pipe (9) tip, opening (22) are V-arrangement structure.
9. The axle end structure of claim 8, wherein: the end part of the wheel end flange (8) stretches into the bridge pipe (9) and is fixed through welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323413768.5U CN221187992U (en) | 2023-12-14 | 2023-12-14 | Coaxial drive axle wheel end structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323413768.5U CN221187992U (en) | 2023-12-14 | 2023-12-14 | Coaxial drive axle wheel end structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221187992U true CN221187992U (en) | 2024-06-21 |
Family
ID=91520430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323413768.5U Active CN221187992U (en) | 2023-12-14 | 2023-12-14 | Coaxial drive axle wheel end structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221187992U (en) |
-
2023
- 2023-12-14 CN CN202323413768.5U patent/CN221187992U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104401302B (en) | Automobile and its disk brake Automobile drive rear axle assy | |
| CN221187992U (en) | Coaxial drive axle wheel end structure | |
| CN201615201U (en) | Connecting mechanism for differential assembly and drive shaft of half axle gear | |
| CN106945463B (en) | Hub end structure of rear drive axle of minicar | |
| CN218463466U (en) | Wheel hub assembly and car | |
| CN111963654A (en) | Four-wheel drive speed reducer shell and speed reducer for Bahassai vehicle | |
| CN113183754A (en) | Spline sealing connection system of electric drive axle assembly | |
| CN218948937U (en) | Wheel-side speed reducer for mine car drive axle | |
| CN212827851U (en) | Motor coaxial type rigid electric drive rear axle assembly | |
| CN201494315U (en) | Breaking type penetrating bridge main speed reducer | |
| CN112109540B (en) | Power transmission assembly | |
| CN217396115U (en) | Forklift drive axle structure | |
| CN212564321U (en) | Four-wheel drive speed reducer shell and speed reducer for Bahassai vehicle | |
| CN219388452U (en) | Low-noise large inner ring hub bearing | |
| CN201346996Y (en) | Drive shaft intermediate supporting device for automobile | |
| CN101524948A (en) | Supporter of automobile driving axle | |
| CN219487662U (en) | Built-in disc brake device and vehicle | |
| CN220410199U (en) | Trailer axle assembly | |
| CN210290752U (en) | High-rotating-speed oil seal of gearbox for new energy automobile | |
| CN217272869U (en) | Flywheel casing, driving system and vehicle | |
| CN219214621U (en) | Semi-floating wheel rim assembly and vehicle | |
| RU220027U1 (en) | FRONT WHEEL HUB ASSEMBLY FOR VEHICLES WITH 4WD TRANSMISSION | |
| CN217124436U (en) | Novel steering axle of wheel type excavator | |
| CN210000306U (en) | Brake mounting structure of sledge | |
| CN219988914U (en) | Electric drive axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |