CN208630272U - Semi-floating low noise rear axle assy - Google Patents
Semi-floating low noise rear axle assy Download PDFInfo
- Publication number
- CN208630272U CN208630272U CN201821192594.0U CN201821192594U CN208630272U CN 208630272 U CN208630272 U CN 208630272U CN 201821192594 U CN201821192594 U CN 201821192594U CN 208630272 U CN208630272 U CN 208630272U
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- CN
- China
- Prior art keywords
- semiaxis
- bearing
- drive case
- semi
- low noise
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Abstract
The utility model discloses a kind of semi-floating low noise rear axle assy, including drive case, differential mechanism is installed in drive case, drive case two sides are each provided with an axle sleeve, and one end of axle sleeve is installed in drive case, and the other end is equipped with hub seat；First bearing is installed on hub seat, semiaxis is installed on the inner ring of first bearing；One end of semiaxis is equipped with wheel hub, and the other end is splined end, and the spline housing being meshed with splined end is provided on differential mechanism；The two sides of differential mechanism are each provided with a bracket, and two stands are respectively positioned in drive case, and second bearing is equipped on each bracket, and the inner ring of second bearing is equipped with semiaxis；Semiaxis is supported by two bearings of first bearing and second bearing, semiaxis inner end is solely subjected to torque, the abnormal sound and utter long and high-pitched sounds that the splined end of semiaxis generates during intermeshing with differential mechanism spline housing are greatly reduced, the service life of semiaxis is extended, improves the comfort of vehicle in the process of moving.
Description
Technical field
The utility model relates to electric car equipment technical fields, and in particular to a kind of semi-floating low noise rear axle assy.
Background technique
Traditional low-speed electronic automobile, rear axle assy mostly use semifloating axle shaft support, and semiaxis is only in semiaxis outer end
There is a bearing as supporting point, semiaxis is splined end close to one end of differential mechanism, and splined end is directly plugged into the flower of differential mechanism
Key is put on.Splined end had not only born torque but also had born moment of flexure in vehicle traveling, is easy to produce shake when encountering complicated road conditions, leads
It causes splined end to bear the variable load of irregularities, not only increases the noise in vehicle traveling process, and reduce making for semiaxis
Use the service life.
Utility model content
For disadvantages described above, the problem to be solved by the utility model is to provide a kind of semi-floating low noise rear axle assy,
It solves the problems, such as the irregular shake bring abnormal sound of semiaxis and utters long and high-pitched sounds, also extend the service life of semiaxis, improve vehicle and exist
Comfort in driving process.
In order to solve the above technical problems, the technical solution of the utility model is:
The utility model semi-floating low noise rear axle assy, including drive case are rotatably equipped in the drive case
Differential mechanism, the drive case two sides are each provided with an axle sleeve, and one end of the axle sleeve is installed in the drive case, described
The other end of axle sleeve is equipped with hub seat；It is provided with through-hole on the hub seat, first bearing is installed in the through-hole, it is described
Semiaxis is installed, the semiaxis runs through the axle sleeve and the hub seat on the inner ring of first bearing；Pacify one end of the semiaxis
Equipped with wheel hub, the other end of the semiaxis is splined end, is provided with the spline being meshed with the splined end on the differential mechanism
Set；
The two sides of the differential mechanism are each provided with a bracket, and two brackets are respectively positioned in the drive case, Mei Yisuo
It states and second bearing is installed on bracket, the inner ring of the second bearing is equipped with the semiaxis.
As an improvement mode, it is provided with limit assembly on the semiaxis between the bracket and the differential mechanism,
The limit assembly includes the position-limiting drum being sheathed on the semiaxis, and the position-limiting drum is resisted against in the second bearing, described
At least two clamping devices are provided on position-limiting drum.
As an improvement mode, there are four the clamping device settings, and four clamping devices are along the position-limiting drum
Radial equipartition.
As an improvement mode, each clamping device includes the mounting hole being arranged radially along the position-limiting drum, institute
It states and is provided with clamping balls in mounting hole, groove compatible with the clamping balls is provided on the semiaxis；In the mounting hole
It is provided with thread segment, screw thread is provided with fishbolt on the thread segment, and the end of the fishbolt is resisted against the clamping
On ball.
As an improvement mode, it is provided with spring between the fishbolt and the clamping balls, the one of the spring
End is resisted against on the fishbolt, and the other end of the spring is resisted against in the clamping balls.
As an improvement mode, the mounting hole is provided with ring baffle, the annular close to the side of the semiaxis
The aperture of baffle is less than the diameter of the clamping balls.
As an improvement mode, the ring baffle and the position-limiting drum are integrally formed.
As an improvement mode, the bracket and the drive case are integrally formed.
After above-mentioned technical proposal, the beneficial effects of the utility model are:
Due to the utility model semi-floating low noise rear axle assy, including drive case, differential mechanism is installed in drive case,
Drive case two sides are each provided with an axle sleeve, and one end of axle sleeve is installed in drive case, and the other end is equipped with hub seat；Wheel hub
First bearing is installed on seat, semiaxis is installed on the inner ring of first bearing；One end of semiaxis is equipped with wheel hub, and the other end is flower
Key end is provided with the spline housing being meshed with splined end on differential mechanism；The two sides of differential mechanism are each provided with a bracket, and two stands are equal
In drive case, second bearing is installed on each bracket, the inner ring of second bearing is equipped with semiaxis；Semiaxis is by first axle
It holds with two bearings of second bearing and supports, semiaxis inner end is solely subjected to torque, greatly reduces the splined end and differential mechanism of semiaxis
The abnormal sound and utter long and high-pitched sounds that spline housing generates during intermeshing, extend the service life of semiaxis, improve vehicle and are travelling
Comfort in the process.
Due to being provided with limit assembly on the semiaxis between bracket and differential mechanism, limit assembly includes being sheathed on semiaxis
Position-limiting drum is provided at least two clamping devices on position-limiting drum, using gripping means grips semiaxis, position-limiting drum is fixed on semiaxis
On, since position-limiting drum is resisted against in second bearing, so that second bearing be resisted, prevent second bearing from sending out under the action of semiaxis
Life slides axially.
Due to there are four clamping device settings, four clamping devices clamp when clamping semiaxis along the radial equipartition of position-limiting drum
Power stepless action clamps relatively reliable on semiaxis.
Since each clamping device includes the mounting hole being arranged radially along position-limiting drum, clamping balls are provided in mounting hole, half
Groove compatible with clamping balls is provided on axis；Thread segment is provided in mounting hole, screw thread is provided with clamping spiral shell on thread segment
The end of bolt, fishbolt is resisted against in clamping balls, and position-limiting drum is installed on semiaxis, by rotating fishbolt, to push away
Dynamic clamping balls are mobile, and then clamp semiaxis；Fishbolt is reversed, clamping balls are loosened, to facilitate position-limiting drum from semiaxis
It removes, convenient disassembly.
Due to being provided with spring between fishbolt and clamping balls, one end of spring is resisted against on fishbolt, spring
The other end is resisted against in clamping balls, using the spring damping fishbolt of spring to the pressure of clamping balls, prevents clamping balls and half
When pressure is excessive between axis, clamping balls and semiaxis are damaged.
Since mounting hole is provided with ring baffle close to the side of semiaxis, the aperture of ring baffle is less than the straight of clamping balls
Diameter, when installation, clamping balls are put by the outer end of mounting hole, prevent clamping balls from deviating from from mounting hole inner end, installation convenience.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the enlarged diagram in Fig. 1 at A；
Fig. 3 is the structural schematic diagram of the utility model limit assembly；
Fig. 4 is B-B direction view in Fig. 3；
Fig. 5 is C-C direction view in Fig. 1
In figure: 1- drive case, 2- differential mechanism, 3- axle sleeve, 4- hub seat, 5- through-hole, 6- first bearing, 7- semiaxis, 8-
Wheel hub, 9- splined end, 10- spline housing, 11- bracket, 12- second bearing, 13- limit assembly, 14- position-limiting drum, 15- clamp dress
It sets, 16- mounting hole, 17- clamping balls, 18- groove, 19- fishbolt, 20- ring baffle, 21- spring.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment one
As shown in Figure 1, Figure 2 and shown in Fig. 5, the utility model semi-floating low noise rear axle assy, including drive case 1, driving
It is rotatably equipped in cabinet 1 by power-actuated differential mechanism 2,1 two sides of drive case are each provided with an axle sleeve 3, one end of axle sleeve 3
It is installed in drive case 1, the other end of axle sleeve 3 is equipped with hub seat 4；Through-hole 5, installation in through-hole 5 are provided on hub seat 4
There is first bearing 6, semiaxis 7 is installed on the inner ring of first bearing 6, semiaxis 7 runs through axle sleeve 3 and hub seat 4；One end of semiaxis 7
Wheel hub 8 is installed, the other end of semiaxis 7 is splined end 9, is provided with the spline housing 10 being meshed with splined end 9 on differential mechanism 2.
The two sides of differential mechanism 2 are each provided with a bracket 11, and two stands 11 are respectively positioned in drive case 1, and bracket 11 with
Drive case 1 is integrally formed, and is equipped with second bearing 12 on each bracket 11, the inner ring of second bearing 12 is equipped with semiaxis 7.
As shown in Figure 2 and Figure 4, limit assembly 13, limit assembly are provided on the semiaxis 7 between bracket 11 and differential mechanism 2
13 include the position-limiting drum 14 being sheathed on semiaxis 7, and position-limiting drum 14 is resisted against in second bearing 12, on position-limiting drum 14 there are four settings
Clamping device 15, radial equipartition of four clamping devices 15 along position-limiting drum 14.
As shown in figure 3, each clamping device 15 includes the mounting hole 16 being arranged radially along position-limiting drum 14, set in mounting hole 16
Clamping balls 17 are equipped with, groove 18 compatible with clamping balls 17 is provided on semiaxis 7；Thread segment, spiral shell are provided in mounting hole 16
Screw thread is provided with fishbolt 19 in line section, and the end of fishbolt 19 is resisted against in clamping balls 17.
Mounting hole 16 is provided with and the integrally formed ring baffle 20 of position-limiting drum 14, ring baffle close to the side of semiaxis 7
20 aperture is less than the diameter of clamping balls 17.
Embodiment two
The present embodiment and embodiment one the difference is that: be provided with spring between fishbolt 19 and clamping balls 17
21, one end of spring 21 is resisted against on fishbolt 19, and the other end of spring 21 is resisted against in clamping balls 17.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (8)
1. semi-floating low noise rear axle assy, including drive case, differential mechanism, feature are rotatably equipped in the drive case
It is,
The drive case two sides are each provided with an axle sleeve, and one end of the axle sleeve is installed in the drive case, the axis
The other end of set is equipped with hub seat；It is provided with through-hole on the hub seat, first bearing is installed in the through-hole, described
Semiaxis is installed, the semiaxis runs through the axle sleeve and the hub seat on the inner ring of one bearing；It installs one end of the semiaxis
There is wheel hub, the other end of the semiaxis is splined end, is provided with the spline housing being meshed with the splined end on the differential mechanism；
The two sides of the differential mechanism are each provided with a bracket, and two brackets are respectively positioned in the drive case, each branch
Second bearing is installed, the inner ring of the second bearing is equipped with the semiaxis on frame.
2. semi-floating low noise rear axle assy as described in claim 1, which is characterized in that the bracket and the differential mechanism it
Between the semiaxis on be provided with limit assembly, the limit assembly includes the position-limiting drum being sheathed on the semiaxis, the limit
Position cylinder is resisted against in the second bearing, and at least two clamping devices are provided on the position-limiting drum.
3. semi-floating low noise rear axle assy as claimed in claim 2, which is characterized in that the clamping device is provided with four
It is a, radial equipartition of four clamping devices along the position-limiting drum.
4. semi-floating low noise rear axle assy as claimed in claim 3, which is characterized in that each clamping device includes edge
The mounting hole that the position-limiting drum is arranged radially is provided with clamping balls in the mounting hole, is provided on the semiaxis and the folder
The compatible groove of tight ball；Thread segment is provided in the mounting hole, screw thread is provided with fishbolt on the thread segment, described
The end of fishbolt is resisted against in the clamping balls.
5. semi-floating low noise rear axle assy as claimed in claim 4, which is characterized in that the fishbolt and the clamping
Spring is provided between ball, one end of the spring is resisted against on the fishbolt, and the other end of the spring is resisted against institute
It states in clamping balls.
6. semi-floating low noise rear axle assy as claimed in claim 4, which is characterized in that the mounting hole is close to the semiaxis
Side be provided with ring baffle, the aperture of the ring baffle is less than the diameter of the clamping balls.
7. semi-floating low noise rear axle assy as claimed in claim 6, which is characterized in that the ring baffle and the limit
Cylinder is integrally formed.
8. semi-floating low noise rear axle assy as described in claim 1, which is characterized in that the bracket and the drive case
It is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192594.0U CN208630272U (en) | 2018-07-26 | 2018-07-26 | Semi-floating low noise rear axle assy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821192594.0U CN208630272U (en) | 2018-07-26 | 2018-07-26 | Semi-floating low noise rear axle assy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208630272U true CN208630272U (en) | 2019-03-22 |
Family
ID=65738886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821192594.0U Expired - Fee Related CN208630272U (en) | 2018-07-26 | 2018-07-26 | Semi-floating low noise rear axle assy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208630272U (en) |
-
2018
- 2018-07-26 CN CN201821192594.0U patent/CN208630272U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190322 Termination date: 20200726 |