CN218616077U - Wheel hub structure for drive axle - Google Patents
Wheel hub structure for drive axle Download PDFInfo
- Publication number
- CN218616077U CN218616077U CN202223123108.9U CN202223123108U CN218616077U CN 218616077 U CN218616077 U CN 218616077U CN 202223123108 U CN202223123108 U CN 202223123108U CN 218616077 U CN218616077 U CN 218616077U
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- China
- Prior art keywords
- bearing
- location portion
- wheel hub
- bearing location
- drive axle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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Abstract
The utility model discloses a wheel hub structure for transaxle, including wheel hub, half sleeve pipe, wheel hub and half sleeve pipe are the integrated into one piece structure, half sleeve pipe is equipped with first bearing location portion and second bearing location portion along its axis direction in proper order, be equipped with the step transition face between first bearing location portion and the second bearing location portion, horizontal distance between first bearing location portion and the second bearing location portion and the contained angle between the step transition face are greater than sixty degrees. The utility model discloses in, through setting up wheel hub and axle sleeve pipe into the integrated into one piece structure, thereby can guarantee that part positioning accuracy is the same improves the assembly precision of part, sets up to be greater than sixty degrees through the contained angle between horizontal distance and the step transition face between with first bearing location portion and second bearing location portion, has reduced the bearing span and has increased the bearing external diameter, and the geometry is littleer under the prerequisite of assurance atress, has further improved the assembly precision.
Description
Technical Field
The utility model relates to an engineering machine tool technical field, more specifically relate to a wheel hub structure for transaxle.
Background
The wheel reduction gear of the drive axle is an important output part for reducing the speed and increasing the torque of the drive axle. The reliability of the part directly determines the use reliability of the drive axle and the whole vehicle. The planet carrier is mainly used for mounting planet gears in the wheel-side speed reducer and is an important component in the wheel-side speed reducer.
In the prior art, the hub and the half-sleeve are of a split structure, and the hub and the half-sleeve are easily assembled to cause low assembly precision of parts due to poor positioning precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that how improve transaxle wheel hub's assembly precision.
The utility model discloses a following technical means realizes solving above-mentioned technical problem: a hub structure for a drive axle comprises a hub and a half-sleeve, wherein the hub and the half-sleeve are of an integrally formed structure, the half-sleeve is sequentially provided with a first bearing positioning part and a second bearing positioning part along the axis direction, a step transition surface is arranged between the first bearing positioning part and the second bearing positioning part, and the horizontal distance between the first bearing positioning part and the second bearing positioning part and the included angle between the step transition surfaces are more than sixty degrees and less than ninety degrees.
Through setting up wheel hub and semi-axis sleeve pipe into the integrated into one piece structure, thereby can guarantee that part positioning accuracy is the same and improve the assembly precision of part, through setting up the horizontal distance between first bearing location portion and the second bearing location portion and the contained angle between the step transition face to be greater than sixty degrees, reduced the bearing span and increased the bearing external diameter, the geometry is littleer under the prerequisite of guaranteeing the atress, has further improved the assembly precision.
As a preferred technical scheme, a through hole is formed in the half-sleeve, and a positioning gear ring matched with the transmission half shaft is arranged in the through hole.
As the preferred technical scheme, a plurality of locating holes are formed in the outer wall of the large end face of the hub.
As the preferred technical scheme, a plurality of the locating holes are evenly distributed along the outer wall of the large end face of the hub.
Preferably, the first bearing locating portion cross-sectional radius is greater than the second bearing locating portion cross-sectional radius.
As a preferable technical scheme, a bearing retainer ring is sleeved on the outer side of the step transition surface.
The utility model has the advantages of:
(1) The utility model discloses in, through setting up wheel hub and axle sleeve pipe into the integrated into one piece structure, thereby can guarantee that part positioning accuracy is the same and improve the assembly precision of part, set up to being greater than sixty degrees through the contained angle between horizontal distance and the step transition face between with first bearing location portion and the second bearing location portion, reduced the bearing span and increased the bearing external diameter, the geometry is littleer under the prerequisite of assurance atress, has further improved the assembly precision.
Drawings
Fig. 1 is a schematic view of a hub structure for a drive axle according to an embodiment of the present invention;
fig. 2 isbase:Sub>A schematic structural view ofbase:Sub>A sectionbase:Sub>A-base:Sub>A in fig. 1 ofbase:Sub>A hub structure forbase:Sub>A drive axle according to an embodiment of the present invention;
fig. 3 is a schematic front view of a hub structure for a drive axle according to an embodiment of the present invention;
fig. 4 is a schematic side view of a hub structure for a drive axle according to an embodiment of the present invention;
reference numbers: 1. a hub; 2. a half-sleeve; 3. positioning the gear ring; 4. and (6) positioning the holes.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a wheel hub structure for a drive axle, including wheel hub 1, half sleeve 2, location ring gear 3, locating hole 4, wheel hub 1 right-hand member face is inwards sunken, half sleeve 2 is fixed connection at wheel hub 1 sunken face inner wall, wheel hub 1 and half sleeve 2 are integrated into one piece structure, half sleeve 2 is equipped with first bearing location portion and second bearing location portion along its axis direction in proper order, be equipped with the step transition face between first bearing location portion and the second bearing location portion, first bearing location portion cross-sectional radius is greater than second bearing location portion cross-sectional radius, the horizontal distance between first bearing location portion and the second bearing location portion and the contained angle between the step transition face are greater than sixty degrees and are less than ninety degrees, this scheme is compared with traditional wheel hub structure, through being greater than sixty degrees with the horizontal distance between first bearing location portion and the second bearing location portion and the contained angle between the step transition face, make the horizontal distance between two bearings reduce, the bearing span has reduced the bearing external diameter, guarantee that the geometric dimensions under the prerequisite of atress is littleer, wheel hub 1 and half sleeve 2 are integrated into one piece structure simultaneously, both whole processes, thereby can guarantee improvement the precision of the positioning part assembly precision with the same.
The bearing is all overlapped outside first bearing location portion and the second bearing location portion, the bearing that first bearing location portion overcoat was established makes wheel hub 1 and transaxle planet carrier rotatable fit, the bearing that second bearing location portion overcoat was established makes it and transaxle ring gear rotatable fit, step transition outside of the face cover is equipped with the retaining ring, the retaining ring is located between two bearings, be equipped with the through-hole in half sleeve pipe 2, be equipped with in the through-hole with the location ring gear 3 of transmission half axle looks adaptation, a plurality of locating holes 4 have been seted up to 1 big terminal surface outer wall of wheel hub, a plurality of locating holes 4 are along 1 big terminal surface outer wall evenly distributed of wheel hub.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The wheel hub structure for the drive axle is characterized by comprising a wheel hub (1) and a half sleeve (2), wherein the wheel hub (1) and the half sleeve (2) are of an integrally formed structure, the half sleeve (2) is sequentially provided with a first bearing positioning portion and a second bearing positioning portion along the axis direction of the half sleeve, a step transition surface is arranged between the first bearing positioning portion and the second bearing positioning portion, and the horizontal distance between the first bearing positioning portion and the second bearing positioning portion and the included angle between the step transition surface are larger than sixty degrees and smaller than ninety degrees.
2. The hub structure for the drive axle according to claim 1, wherein a through hole is formed in the half-sleeve (2), and a positioning gear ring (3) matched with the transmission half shaft is arranged in the through hole.
3. The hub structure for the drive axle according to claim 1, wherein the outer wall of the large end face of the hub (1) is provided with a plurality of positioning holes (4).
4. A hub structure for a drive axle according to claim 3, wherein a plurality of said positioning holes (4) are uniformly distributed along the outer wall of the large end face of the hub (1).
5. The hub structure for a drive axle according to claim 1, wherein the first bearing-positioning portion has a larger cross-sectional radius than the second bearing-positioning portion.
6. The hub structure for the drive axle according to claim 1, wherein the step transition surface is sleeved with a bearing retainer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223123108.9U CN218616077U (en) | 2022-11-23 | 2022-11-23 | Wheel hub structure for drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223123108.9U CN218616077U (en) | 2022-11-23 | 2022-11-23 | Wheel hub structure for drive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218616077U true CN218616077U (en) | 2023-03-14 |
Family
ID=85450666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223123108.9U Active CN218616077U (en) | 2022-11-23 | 2022-11-23 | Wheel hub structure for drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218616077U (en) |
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2022
- 2022-11-23 CN CN202223123108.9U patent/CN218616077U/en active Active
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