CN112976936A - Hub bearing and driving shaft connecting structure of U-shaped spline - Google Patents
Hub bearing and driving shaft connecting structure of U-shaped spline Download PDFInfo
- Publication number
- CN112976936A CN112976936A CN202110485324.9A CN202110485324A CN112976936A CN 112976936 A CN112976936 A CN 112976936A CN 202110485324 A CN202110485324 A CN 202110485324A CN 112976936 A CN112976936 A CN 112976936A
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- Prior art keywords
- wheel
- spline
- shaped
- shaft
- sealing ring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/121—Power-transmission from drive shaft to hub
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0015—Hubs for driven wheels
- B60B27/0021—Hubs for driven wheels characterised by torque transmission means from drive axle
- B60B27/0026—Hubs for driven wheels characterised by torque transmission means from drive axle of the radial type, e.g. splined key
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0073—Hubs characterised by sealing means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0078—Hubs characterised by the fixation of bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/18—Arrangement of bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2380/00—Bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
A hub bearing and driving shaft connecting structure of a U-shaped spline comprises a shaft wheel, a sealing ring and a spline housing; the shaft wheel comprises an outer wheel, a steel ball, a retainer, an inner wheel and a sealing ring, the small end of the shaft wheel fixes the inner wheel through spin riveting, a U-shaped spline which is formed by connecting an inner hole, an end face and an outer circle into a whole is processed at the spin riveting end part of the shaft wheel, and each spline is in tapered smooth transition at the joint of the end face, the outer circle and the inner hole; the spline housing is sleeved at the end part of the U-shaped spline of the arbor wheel, the end surface of the spline housing is provided with a U-shaped ring groove, the three surfaces of the inner diameter, the groove bottom and the outer diameter of the ring groove are provided with U-shaped key teeth which are connected into a whole, and the key teeth are meshed and connected with the U-shaped spline at the end part of the arbor wheel. The U-shaped spline of the hub bearing is connected in a three-side meshed mode, torque transmission is carried out after the U-shaped spline is connected with the driving shaft unit, positioning accuracy is improved, driving torque is improved, the weight of the hub bearing is reduced, light weight and miniaturization are achieved, friction torque of the bearing is reduced, and the purpose of reducing energy consumption is achieved.
Description
Technical Field
The invention belongs to the technical field of hub bearing design, and particularly relates to a structure that a part of a hub bearing connected with a driving shaft is a U-shaped spline.
Background
The hub bearing is an important part of an automobile and has the functions of bearing weight and providing accurate guidance for the rotation of a hub. Along with automobile industry's rapid development, the total car quality of each automobile factory is bigger and bigger, make the requirement to the moment of torsion higher and higher, and current wheel hub bearing mostly cooperatees through internal spline and the epaxial external spline of drive wheel and carries out the torque transmission, thereby cause the external spline external diameter grow of drive wheel shaft, the internal spline hole of wheel hub bearing also is bigger and bigger thereupon, make the single quality grow of wheel hub bearing, weight increases, also make wheel hub bearing's the assembly degree of difficulty increase simultaneously, corresponding friction torque also increases to some extent, torque transmission efficiency reduces, the reliability worsens.
Disclosure of Invention
The invention aims to provide a connecting structure of a hub bearing and a driving shaft of a U-shaped spline, which is characterized in that the end surface, the inner hole and the outer circle of the end part of a shaft wheel of the hub bearing are provided with the U-shaped spline, and a spline sleeve matched with the U-shaped spline is arranged, and the spline sleeve is connected with a driving shaft unit, so that the driving torque is improved, and the weight of the hub bearing is reduced.
The purpose of the invention can be realized by adopting the following technical scheme: a hub bearing and driving shaft connecting structure of a U-shaped spline comprises a shaft wheel, a sealing ring and a spline housing; the shaft wheel comprises an outer wheel, a steel ball, a retainer, an inner wheel, a sealing ring and a combined sealing ring, the steel ball, the retainer, the outer wheel and the inner wheel are sequentially arranged on the shaft wheel, the inner wheel is fixed by spin riveting the small end of the shaft wheel, a U-shaped spline which is formed by integrally connecting an inner hole, an end face and an outer circle is processed at the end part of the shaft wheel, and each U-shaped spline of the U-shaped spline is in tapered smooth transition at the joint of the end face and the outer circle and the inner hole; the spline sleeve is sleeved at the end part of the U-shaped spline of the arbor wheel, a U-shaped annular groove is arranged on the end face of one end of the spline sleeve, three surfaces of the inner diameter, the bottom and the outer diameter of the U-shaped annular groove are provided with U-shaped key teeth which are connected into a whole, the key teeth take the center of the U-shaped annular groove as the circle center and are uniformly distributed in the U-shaped annular groove, the key teeth of the U-shaped annular groove are meshed and connected with the U-shaped spline at the end part of the arbor wheel, and the other end of the spline sleeve is connected with the driving shaft; the sealing ring is arranged on a boss on the end face of the outer side of the inner wheel, and the inner wheel and the spline housing are sealed through the sealing ring.
The parameter size of the U-shaped spline at the end part of the shaft wheel is matched with the parameter size of the key teeth in the U-shaped annular groove at one end of the spline housing.
The outer wheel is arranged at the root part of a shaft neck of the shaft wheel, a double-row raceway connected with the shaft wheel and the inner wheel is arranged on the inner diameter of the outer wheel, and the outer wheel and the shaft wheel are sealed through a sealing ring.
The inner wheel is arranged at the end part of the shaft wheel, an outer groove is arranged on the excircle of the inner wheel, a raceway connected with the outer wheel through a steel ball is arranged on the outer groove, the raceway corresponds to double rows of raceways on the outer wheel, a boss for installing a sealing ring is arranged on the end surface of the outer side of the inner wheel, and the inner wheel and the outer wheel are sealed through a combined sealing ring.
The root part of the shaft neck of the shaft wheel is provided with a roller path connected with an outer wheel, and the roller path corresponds to a double-row roller path on the outer wheel.
The spline housing be the notch cuttype axle sleeve, be provided with the bolt hole of being connected with the drive shaft unit on the spline housing.
The connection process of the structure is as follows: assembling the steel ball and the retainer, then assembling the steel ball and the outer wheel, then pressing a sealing ring into the end part of the outer wheel, then arranging the outer wheel, the assembled steel ball, the retainer and the sealing ring to the root part of the shaft wheel, wherein the double-row roller paths on the outer wheel correspond to the steel ball, then pressing the steel ball into the inner wheel, performing spin riveting on the small end part of the shaft wheel after the inner wheel is installed in place, fixing the inner wheel and the shaft wheel, and pressing the combined sealing ring; and then processing a U-shaped spline with three sides connected into a whole at the inner hole, the end face and the excircle of the end part of the spin riveting of the shaft wheel, wherein the U-shaped spline is in tapered smooth transition at the joint of the end face, the inner hole, the end face and the excircle, pressing a sealing ring into a boss on the end face of the outer side of the inner wheel, finally connecting a spline sleeve connected with a driving shaft unit with the shaft wheel, meshing key teeth in a U-shaped annular groove on the end face of the spline sleeve with the U-shaped spline at the end part of the shaft wheel, and sealing between the inner wheel and the spline sleeve through the sealing ring.
The invention has the beneficial effects that:
1. the U-shaped spline that this wheel hub bearing and spline housing are connected is trilateral spline meshing, is connected the back with the drive shaft unit, carries out the moment of torsion transmission as transmission, has improved positioning accuracy, has promoted the drive moment of torsion, also makes transmission efficiency obtain improving.
2. The U-shaped spline on the end face of the shaft wheel of the hub bearing is meshed with the spline teeth on the U-shaped annular groove of the spline sleeve to realize self-centering, so that the driving clearance is reduced, and abnormal sound in the driving process is eliminated.
3. The hub bearing is reasonable in process structure, the weight of the hub bearing is reduced, light weight and miniaturization are achieved, the friction torque of the hub bearing is reduced, and the purpose of reducing energy consumption is achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of the hub bearing of the present invention coupled to a drive shaft unit;
FIG. 2 is an isometric view of the hub bearing of the present invention;
FIG. 3 is a schematic cross-sectional view of the arbor wheel of the present invention shown unsewn;
FIG. 4 is a schematic front view of a U-shaped spline formed at the end of the arbor wheel and inner wheel after being fixed and riveted according to the present invention;
FIG. 5 is a right side view of FIG. 4;
FIG. 6 is a front view in cross-section of the assembled end of the hub bearing of the present invention with spin riveting;
FIG. 7 is a schematic cross-sectional view of the spline housing of the present invention;
the labels in the figure are: 1. shaft wheel, 2, outer wheel, 3, steel ball, 4, retainer, 5, inner wheel, 6, sealing ring, 7, combined sealing ring, 8, sealing ring, 9, spline housing, 10, U-shaped spline, 11, U-shaped ring groove, 12, key tooth, 13 and driving shaft unit.
Detailed Description
The following detailed description of embodiments of the invention is provided in connection with the accompanying drawings.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, the hub bearing and drive shaft connecting structure with U-shaped splines comprises a shaft wheel 1, a sealing ring 8 and a spline housing 9; the shaft wheel 1 comprises an outer wheel 2, a steel ball 3, a retainer 4, an inner wheel 5, a sealing ring 6 and a combined sealing ring 7; the shaft wheel 1 is sequentially provided with a steel ball 3, a retainer 4, an outer wheel 2 and an inner wheel 5, the inner wheel 5 is fixed by spin riveting the small end of the shaft wheel 1, after the inner wheel 5 is fixed, a U-shaped spline 10 which is formed by connecting three surfaces of an inner hole, an end surface and an outer circle into a whole is processed at the end part of the shaft wheel 1, each U-shaped spline of the U-shaped spline 10 is in tapered smooth transition at the joint of the end surface and the outer circle and the joint of the end surface and the inner hole, and is conveniently and smoothly meshed with a key tooth in a U-shaped annular groove 11 of a spline housing, and the root part of a shaft neck of the shaft wheel 1 is provided with a roller path connected with the; the spline housing 9 is a stepped shaft housing, a U-shaped ring groove 11 is arranged on the end face of one end of the spline housing, three surfaces of the inner diameter, the bottom of the groove and the outer diameter of the U-shaped ring groove 11 are provided with a U-shaped key tooth 12 which is connected into a whole, the key tooth 12 takes the center of the U-shaped ring groove 11 as the center of a circle and is uniformly distributed in the U-shaped ring groove 11, the parameter size of the key tooth 12 is matched with the parameter size of a U-shaped spline 10 at the end part of the shaft wheel 1, the spline housing 9 is sleeved on the end part of the U-shaped spline 10 of the shaft wheel 1, the key tooth 12 of the U-shaped ring groove 11 is meshed with the U-shaped spline 10 at the end part of the shaft wheel 1, the other end of the spline housing 10 is provided with a bolt hole connected; the outer wheel 2 is arranged at the root part of a shaft neck of the shaft wheel 1, a double-row raceway connected with the shaft wheel 1 and the inner wheel 5 is arranged on the inner diameter of the outer wheel 2, and the outer wheel 2 and the shaft wheel 1 are sealed through a sealing ring 6; the inner wheel 5 is arranged at the end part of the shaft wheel 1, an outer channel is arranged on the excircle of the inner wheel 5, a raceway connected with the outer wheel 2 through a steel ball 3 is arranged on the outer channel, the raceway and the raceway at the root part of the shaft neck of the shaft wheel 1 respectively correspond to double rows of raceways of the outer wheel 2, a boss for installing a sealing ring 8 is arranged on the end surface of the outer side of the inner wheel 5, and the inner wheel 5 and the outer wheel 2 are sealed through a combined sealing ring 7; the steel ball 3 is arranged on a double-row raceway formed by combining the shaft wheel 1, the inner wheel 5 and the outer wheel 2, the size of the steel ball 3 is matched with that of the double-row raceway on the outer wheel 2, and the steel ball 3 is fixed in the double-row raceway through a retainer 4; the sealing ring 8 is arranged on a boss on the end face of the outer side of the inner wheel 5, and the spline housing 9 and the inner wheel 5 are sealed through the sealing ring 8.
The specific connection process of the invention is as follows: firstly assembling the steel ball 3 and the retainer 4, then assembling the steel ball 3 and the outer wheel 2, then pressing a sealing ring 6 into the end part of the outer wheel 2, then arranging the outer wheel 2, the assembled steel ball 3, the retainer 4 and the sealing ring 6 to the root part of the shaft wheel 1, wherein double rows of raceways on the outer wheel 2 correspond to the steel ball 3, then pressing the inner wheel 5, carrying out spin riveting on the small end part of the shaft wheel 1 after the inner wheel 5 is installed in place, fixing the inner wheel 5 and the shaft wheel 1, and pressing a combined sealing ring 7; then, a U-shaped spline 10 with three sides connected into a whole is processed on an inner hole, an end face and an outer circle of the end part of the spin riveting of the shaft wheel 1, the U-shaped spline 10 is in taper smooth transition at the joint of the end face, the inner hole and the end face and the outer circle, a sealing ring 8 is pressed on a boss on the end face of the outer side of the inner wheel 5, a spline sleeve 9 connected with a driving shaft unit (13) is connected with the shaft wheel 1 in a sleeved mode, key teeth 12 in a U-shaped ring groove 11 on the end face of the spline sleeve 9 are meshed with the U-shaped spline 10 on the end part of the shaft wheel 1, the inner wheel 5 is sealed with the spline sleeve 9 through the sealing ring 8, and finally the spline sleeve (9) is connected with the driving shaft unit (. The connecting mode reduces the weight of the hub bearing, reduces the driving clearance, eliminates abnormal sound in the driving process, realizes light weight and miniaturization of the whole vehicle, reduces the friction torque of the bearing and achieves the purpose of reducing energy consumption.
The detailed parts of the invention are not prior art, the common general knowledge of the specific structures and characteristics of the embodiments is not described, and the same similar parts can be referred to each other.
Claims (6)
1. The utility model provides a wheel hub bearing and driving shaft connection structure of U type spline, includes arbor wheel (1), sealing ring (8) and spline housing (9), characterized by: the shaft wheel (1) comprises an outer wheel (2), a steel ball (3), a retainer (4), an inner wheel (5), a sealing ring (6) and a combined sealing ring (7); the steel ball (3), the retainer (4), the outer wheel (2) and the inner wheel (5) are sequentially arranged on the arbor wheel (1), the inner wheel (5) is fixed by riveting the small end of the arbor wheel (1), a U-shaped spline (10) which is formed by integrally connecting an inner hole, an end face and an outer circle is processed at the end part of the arbor wheel (1), and each U-shaped spline of the U-shaped spline (10) is in tapered smooth transition at the joint of the end face and the outer circle and the joint of the end face and the inner hole; the spline sleeve (9) is sleeved at the end part of a U-shaped spline (10) of the arbor wheel (1), a U-shaped annular groove (11) is formed in the end face of one end of the spline sleeve (9), three surfaces of the inner diameter, the bottom and the outer diameter of the U-shaped annular groove (11) are provided with U-shaped key teeth (12) which are connected into a whole, the key teeth (12) are uniformly distributed in the U-shaped annular groove (11) by taking the center of the U-shaped annular groove (11) as the circle center, the key teeth (12) of the U-shaped annular groove (11) are meshed with the U-shaped spline (10) at the end part of the arbor wheel (1), and the other end of the spline sleeve (10) is connected with a driving shaft unit (13); the sealing ring (8) is arranged on a boss on the end face of the outer side of the inner wheel (5), and the inner wheel (5) and the spline housing (9) are sealed through the sealing ring (8).
2. The hub bearing and drive shaft connection structure of a U-shaped spline according to claim 1, characterized in that: the parameter size of the U-shaped spline (10) at the end part of the shaft wheel (1) is matched with the parameter size of the key teeth (12) in the U-shaped ring groove (11) at one end of the spline sleeve (9).
3. The hub bearing and drive shaft connection structure of a U-shaped spline according to claim 1, characterized in that: the outer wheel (2) is arranged at the root of a shaft neck of the shaft wheel (1), the inner diameter of the outer wheel (2) is provided with double rows of raceways connected with the shaft wheel (1) and the inner wheel (5), and the outer wheel (2) and the shaft wheel (1) are sealed through a sealing ring (6).
4. The hub bearing and drive shaft connection structure of a U-shaped spline according to claim 1, characterized in that: the inner wheel (5) is arranged at the end part of the shaft wheel (1), an outer groove is arranged on the excircle of the inner wheel (5), a raceway connected with the outer wheel (2) through steel balls (3) is arranged on the outer groove, the raceway corresponds to double rows of raceways on the outer wheel (2), a boss for installing a sealing ring (8) is arranged on the end surface of the outer side of the inner wheel (5), and the inner wheel (5) and the outer wheel (2) are sealed through a combined sealing ring (7).
5. The hub bearing and drive shaft connection structure of a U-shaped spline according to claim 1, characterized in that: the root of the shaft neck of the shaft wheel (1) is provided with a roller path connected with the outer wheel (2), and the roller path corresponds to the double-row roller path on the outer wheel (2).
6. The hub bearing and drive shaft connection structure of a U-shaped spline according to claim 1, characterized in that: spline housing (9) be the notch cuttype axle sleeve, be provided with the bolt hole of being connected with drive shaft unit (13) on spline housing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485324.9A CN112976936A (en) | 2021-04-30 | 2021-04-30 | Hub bearing and driving shaft connecting structure of U-shaped spline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110485324.9A CN112976936A (en) | 2021-04-30 | 2021-04-30 | Hub bearing and driving shaft connecting structure of U-shaped spline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112976936A true CN112976936A (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110485324.9A Pending CN112976936A (en) | 2021-04-30 | 2021-04-30 | Hub bearing and driving shaft connecting structure of U-shaped spline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112976936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415108A (en) * | 2021-07-09 | 2021-09-21 | 浙江吉利控股集团有限公司 | New forms of energy car drive shaft and wheel hub connection structure |
-
2021
- 2021-04-30 CN CN202110485324.9A patent/CN112976936A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113415108A (en) * | 2021-07-09 | 2021-09-21 | 浙江吉利控股集团有限公司 | New forms of energy car drive shaft and wheel hub connection structure |
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