CN111284277A - Semi-floating drive axle hub end assembly - Google Patents
Semi-floating drive axle hub end assembly Download PDFInfo
- Publication number
- CN111284277A CN111284277A CN201811502724.0A CN201811502724A CN111284277A CN 111284277 A CN111284277 A CN 111284277A CN 201811502724 A CN201811502724 A CN 201811502724A CN 111284277 A CN111284277 A CN 111284277A
- Authority
- CN
- China
- Prior art keywords
- semi
- bearing
- hub bearing
- axle housing
- housing flange
- 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.)
- Pending
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Classifications
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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
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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
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
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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
- B60B35/16—Axle housings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
- B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
- B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a semi-floating drive axle hub end assembly which comprises a brake, a brake drum, a half shaft, a hub bearing and an axle housing flange, wherein the brake is positioned between the hub bearing and the axle housing flange, the brake is detachably fixed on the axle housing flange, the brake drum is detachably fixed on the half shaft, the brake and the brake drum rotate relatively, the hub bearing is sleeved on the half shaft in an interference fit manner, an inner ring of the hub bearing is detachably and fixedly connected with the half shaft, and an outer ring flange of the hub bearing is detachably and fixedly connected with the axle housing flange. The semi-floating drive axle hub end assembly is high in integration level, high in bearing capacity and high in sealing functionality, the service life of a bearing is prolonged, and therefore the satisfaction degree of a user is improved.
Description
Technical Field
The invention relates to the technical field of automobile drive axles, in particular to a semi-floating drive axle hub end assembly.
Background
The existing drive axle wheel end has the following defects: the half shaft assembly is poor in press mounting manufacturability, a bearing is easy to damage, when the half shaft assembly is pressed to an axle housing, a roller between an inner ring and an outer ring is required to transmit assembling force, pressure impact is easy to generate during press mounting of a cylinder, fluctuation impact of the assembling force is easy to cause damage to a bearing raceway or a steel ball, pitting early failure is generated, and the service life of the bearing is influenced;
with bearing cooperation part processingquality direct influence bearing performance and life, for the work clearance of guaranteeing the bearing, it is high to axle housing and semi-axis machining precision requirement, the processing error and the precision direct influence of axle housing dead eye and semi-axis bearing position and the work clearance after the bearing assembly, and then influence the bearing life-span. The deep groove ball bearing has limited ability to resist axial force, and the bearing needs to bear larger axial force when the automobile turns and other working conditions, so that the roller climbs on the retainer ring and is eccentrically worn, and the service life of the bearing is influenced.
Disclosure of Invention
The invention is completed to solve the defects in the prior art, and the invention aims to provide a semi-floating drive axle hub end assembly which has high integration level, high bearing capacity and high sealing functionality, prolongs the service life of a bearing and further improves the satisfaction degree of users.
The invention discloses a semi-floating drive axle hub end assembly which comprises a brake, a brake drum, a half shaft, a hub bearing and an axle housing flange, wherein the brake is positioned between the hub bearing and the axle housing flange, the brake is detachably fixed on the axle housing flange, the brake drum is detachably fixed on the half shaft, the brake and the brake drum rotate relatively, the hub bearing is sleeved on the half shaft in an interference fit manner, an inner ring of the hub bearing is detachably and fixedly connected with the half shaft, and an outer ring flange of the hub bearing is detachably and fixedly connected with the axle housing flange.
The hub end assembly of the semi-floating drive axle of the invention can also be:
the hub bearing is a double-row angular contact ball bearing.
The hub bearing is connected with the half shaft in an interference fit mode through the fastening sleeve.
The adapter sleeve with be equipped with the oil blanket between the axle housing flange, the adapter sleeve with the axle housing flange passes through oil blanket sealing connection in on the semi-axis.
The invention discloses a semi-floating drive axle hub end assembly which comprises a brake, a brake drum, a half shaft, a hub bearing and an axle housing flange, wherein the brake is positioned between the hub bearing and the axle housing flange, the brake is detachably fixed on the axle housing flange, the brake drum is detachably fixed on the half shaft, the brake and the brake drum rotate relatively, the hub bearing is sleeved on the half shaft in an interference fit manner, an inner ring of the hub bearing is detachably and fixedly connected with the half shaft, and an outer ring flange of the hub bearing is detachably and fixedly connected with the axle housing flange. Therefore, the hub end assembly of the semi-floating drive axle comprises the brake, the brake drum, the half shaft, the hub bearing and the axle housing flange are in transition fit, the half shaft does not need to be pressed when being assembled to the axle housing flange, the roller path of the hub bearing and the roller do not bear the pressing impact force any more, the problem of assembly damage of the hub bearing is solved, the outer ring flange of the hub bearing is reliably fastened with the axle housing flange through bolts, the hub bearing and the axle housing flange bearing hole are in transition fit, and meanwhile, the phenomenon that the roller path of the hub bearing deforms to influence the working clearance and the performance of the hub bearing due to insufficient control of the cylindricity of the axle housing flange bearing hole. And the hub bearing of this application moves outward, reduces hub bearing center and tire centre-to-centre spacing, improves hub bearing atress, promotes hub bearing life-span. The semi-floating drive axle hub end assembly is high in integration level, high in bearing capacity and high in sealing functionality, the service life of a bearing is prolonged, and therefore the satisfaction degree of a user is improved.
Drawings
Fig. 1 is a block diagram of a semi-floating drive axle hub end assembly of the present invention.
Description of the figures
1 … brake drum 2 … brake 3 … oil seal
4 … half shaft 5 … fastening sleeve 6 … hub bearing
7 … axle housing flange
Detailed Description
A semi-floating drive axle hub end assembly of the present invention is described in further detail below with reference to fig. 1 of the drawings.
Referring to fig. 1, the hub end assembly of the semi-floating drive axle of the invention comprises a brake 2, a brake drum 1, a half axle 4, a hub bearing 6 and an axle housing flange 7, wherein the brake 2 is positioned between the hub bearing 6 and the axle housing flange 7, the brake 2 is detachably fixed on the axle housing flange 7, the brake drum 1 is detachably fixed on the half axle 4, the brake 2 and the brake drum 1 rotate relatively, the hub bearing 6 is sleeved on the half axle 4 in an interference fit manner, an inner ring of the hub bearing 6 is detachably and fixedly connected with the half axle 4, and an outer ring flange of the hub bearing 6 is detachably and fixedly connected with the axle housing flange 7. Therefore, the hub end assembly of the semi-floating drive axle comprises a brake 2, a brake drum 1, a half shaft 4, a hub bearing 6 and an axle housing flange 7, bearing holes of the hub bearing 6 and the axle housing flange 7 are in transition fit, press fitting is not needed when the half shaft 4 is assembled to the axle housing flange 7, a roller path of the hub bearing 6 and a roller do not bear press fitting impact force any more, the problem of assembly damage of the hub bearing 6 is solved, an outer ring flange of the hub bearing 6 is reliably fastened with the axle housing flange 7 through bolts, the bearing holes of the hub bearing 6 and the axle housing flange 7 are in transition fit, and deformation of the roller path of the hub bearing 6 and influence on the working clearance and performance of the hub bearing 6 due to insufficient control of the cylindricity of the bearing holes of the axle housing. And the hub bearing 6 of this application moves outward, reduces 6 centers of hub bearing and tire centre-to-centre spacing, improves 6 atress of hub bearing, promotes 6 life-span of hub bearing. The semi-floating drive axle hub end assembly is high in integration level, high in bearing capacity and high in sealing functionality, the service life of a bearing is prolonged, and therefore the satisfaction degree of a user is improved.
Referring to fig. 1, the structure of a hub end assembly of a semi-floating drive axle according to the present invention may further include: the hub bearing 6 is a double-row angular contact ball bearing. Thus, the hub bearing 6 is a double-row angular contact ball bearing, can bear larger axial force, and avoids the early failure of the hub bearing 6 due to insufficient axial force resistance. The further preferred scheme is as follows: the cover is equipped with adapter sleeve 5 on the semi-axis 4, wheel hub bearing 6 passes through adapter sleeve 5 with semi-axis 4 interference fit is connected, guarantees the axial fastening. Thus, the fastening sleeve 5 is connected with the half shaft 4 in an interference fit manner, and the axial positioning of the hub bearing 6 is ensured through the fastening sleeve 5. The further preferred scheme is as follows: adapter sleeve 5 with be equipped with the oil blanket between the axle housing flange 7, adapter sleeve 5 with axle housing flange 7 passes through 3 sealing connection in of oil blanket on semi-axis 4. Like this, guaranteed the leakproofness between adapter sleeve 5 and the axle housing flange 7 through oil blanket 3 to guarantee adapter sleeve 5 with sealing reliability between the axle housing flange 7.
The above description is only for the purpose of illustrating a few embodiments of the present invention, and should not be taken as limiting the scope of the present invention, in which equivalent changes, modifications, or scaling up or down, etc. made in accordance with the spirit of the present invention should be considered as falling within the scope of the present invention.
Claims (4)
1. A semi-floating drive axle hub end assembly, comprising: including stopper, brake drum, semi-axis, wheel hub bearing and axle housing flange, the stopper is located the wheel hub bearing with between the axle housing flange, the stopper can be dismantled and be fixed in on the axle housing flange, the brake drum can be dismantled and be fixed in on the semi-axis, the stopper with brake drum relative rotation, wheel hub bearing interference fit cover is located on the semi-axis, the inner circle of wheel hub bearing with fixed connection can be dismantled to the semi-axis, the outer lane flange of wheel hub bearing with fixed connection can be dismantled to the axle housing flange.
2. The semi-floating drive axle hub end assembly of claim 1, wherein: the hub bearing is a double-row angular contact ball bearing.
3. The semi-floating drive axle hub end assembly of claim 2, wherein: the hub bearing is connected with the half shaft in an interference fit mode through the fastening sleeve.
4. The semi-floating drive axle hub end assembly of claim 3, wherein: the adapter sleeve with be equipped with the oil blanket between the axle housing flange, the adapter sleeve with the axle housing flange passes through oil blanket sealing connection in on the semi-axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502724.0A CN111284277A (en) | 2018-12-10 | 2018-12-10 | Semi-floating drive axle hub end assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811502724.0A CN111284277A (en) | 2018-12-10 | 2018-12-10 | Semi-floating drive axle hub end assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111284277A true CN111284277A (en) | 2020-06-16 |
Family
ID=71019068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811502724.0A Pending CN111284277A (en) | 2018-12-10 | 2018-12-10 | Semi-floating drive axle hub end assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111284277A (en) |
-
2018
- 2018-12-10 CN CN201811502724.0A patent/CN111284277A/en active Pending
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